Solid fuel, e.g. anthracite or gasification, for e.g. fluidized bed reactor, involves taking water-washed raw gas for deposition of particulate matters of partial condensation, where raw gas is indirectly cooled at preset temperature

The process involves transferring ashes of a fuel with hot gasification gas in a quench area (3.1) of a quench cooler by an outlet (2.5). The quenching of a raw gas is carried out by injecting surplus water up to temperatures between 180 and 260[deg]C. The quenched steam-saturated raw gas is taken for purification of carried particulate matter of a raw gas washing. The water-washed raw gas is taken for deposition of particulate matters of partial condensation and is indirectly cooled at 5-15[deg]C. An independent claim is also included for a device for implementing gasification of solid fuels.

Method and device for producing synthesis gases by partial oxidation of slurries prepared from fuels containing ash and full quenching of the crude gas

Gasification method and device for producing synthesis gases by partial oxidation of fuels containing ash at elevated pressure and with quench-cooling of the crude gas

ELEKTRODENDAMPFERZEUGER

Process and furnace for the production of TiO2 pigment according to the sulfate process

Verfahren zur selektiven sicherheitstechnischen Überwachung von Flugstrom-Vergasungsreaktoren

Verfahren zur selektiven sicherheitstechnischen Überwachung von Flugstromvergasungsreaktoren hoher Leistung mit Ein- oder Mehrbrenneranordnung zur autothermen Partialoxidation von zu Brennstaub aufbereiteten Brennstoffen wie Braun- und Steinkohlen, Petrolkoksen, festen mahlbaren kohlenstoffhaltigen Rückständen aber auch Feststoff-Flüssigkeits-Suspensionen, sogenannten Slurries mit einem sauerstoffhaltigen Vergasungsmittel bei Betriebsdrücken bis 80 bar, demzufolge – der Zünd- und Pilotbrenner nach dem Start der Brennstoffbrenner in Betrieb bleibt, – das Überwachungssystem mit zwei Stufen gebildet ist, wobei – durch die erste Stufe bei Erkennen eines Fehlers innerhalb des Brennstoffvergasungsbetriebes nur die Brennstoffvergasung außer Betrieb gesetzt wird, wobei der Zünd- und Pilotbrenner in Betrieb bleibt, – durch die zweite Stufe bei Erkennen eines sicherheitsrelevanten Fehlers, insbesondere Überschreiten eines Grenzwertes für Druck oder Temperatur, zusätzlich zur Brennstoffvergasung auch ...

KOHLENSTAUBBRENNER

Simultane Vergasung von Kohlen stark unterschiedlichen Inkohlungsgrades in der Flugstromvergasung

Die Erfindung betrifft ein Vergasungsverfahren, das bei einer zuverlässigen und sicheren Betriebsweise die simultane Vergasung von Kohlen unterschiedlichen Inkohlungsgrades einschließlich solch unterschiedlicher Kohlequalitäten wie Braun- und Steinkohlen erlaubt, wobei der aus einer Mischung der unterschiedlichen Kohlen bestehende Brennstaub aus einem gemeinsamen Dosiersystem dem Vergasungsreaktor zugeführt wird.

Gasification method and device for producing synthesis gases by partial oxidation of fuels containing ash at elevated pressure and with quench-cooling of the crude gas

Verfahren zur selektiven sicherheitstechnischen Überwachung von Flugstrom-Vergasungsreaktoren

Die Erfindung erlaubt unter Gewährleistung der technischen Sicherheit und geringer Inbetriebnahmezeit den Betrieb der autothermen Partialoxidation von zu Brennstaub aufbereiteten Brennstoffen wie Braun- und Steinkohlen, Petrolkokse, feste mahlbare kohlenstoffhaltige Rückstände, aber auch Feststoff-Flüssigkeits-Suspensionen, sogenannte Slurries, mit einem sauerstoffhaltigen Vergasungsmittel bei Betriebsdrücken bis 8 MPa (80 bar). Erfindungsgemäß erfolgt mittels der selektiven Ausführung der sicherheitsgerichteten Überwachung des Vergasungsprozesses nur eine Abschaltung der Hauptbrennstoffzuführung. Durch den Weiterbetrieb des Pilot- und Zündbrenners wird der Reaktor unter Betriebsdruck gehalten und nach Störbeseitigung kann mit dem Pilot- und Zündbrenner die Brennstoffvergasung ohne aufwändiges Setzen und Ziehen eines Startbrenners und der nachfolgenden Bespannung der Reaktoren wieder gestartet werden.

Method and device for the regulated feed of pulverized fuel to a flue stream gasifier

Method and device for the regulated feed of pulverized fuel to a flue stream gasifier

VERFAHREN ZUR GEMEINSAMEN VERGASUNG VON FLUESSIGEN UND FESTEN, STAUBFOERMIGEN BRENNSTOFFEN

Gasification method and device for producing synthesis gases by partial oxidation of fuels containing ash at elevated pressure with partial quenching of the crude gas and waste heat recovery

Production of burning and synthesis gases from biomass by gasification process with high pressure steam generation in an airflow carburettor

The process further comprises: reducing water content; high-speed pyrolysis of the pre-dried coke; mixing the pyrolysis coke with the pyrolysis oil/condensate to a liquid solid suspension; gasifying the liquid solid suspension in the carburettor; cooling and washing/filtering the gas; supplying steam water raw gas for adjusting hydrogen/carbon monoxide ratio; producing water-soluble bio paste by hydrothermal pyrolysis of the wet biomass at 200-250 bar and at 300[deg]C; and cleaning the gas for the production of technical hydrogen, oxo products/fuels. The gas is produced at 1100[deg]C and cooling the gas by injecting excess water to the saturation temperature of the water vapor. In the cooled raw gas, the ratio of water is 50-70 vol.%.

Method for determining flow rate in pneumatic dense phase conveying line, involves determining specific pressure loss as function of flow rate for given measuring section of delivery line

The method involves determining specific pressure loss (5', 5'',5''') as a function of flow rate for given measuring section of delivery line, which specific dust mass flow rate and promotion density are determined. The flow rate is determined during operation of currently measured specific pressure loss according to condition of conveying density.

Vergasungsverfahren und Vorrichtung zur Erzeugung von Synthesegasen durch Partialoxidation von aschehaltigen Brennstoffen unter erhöhtem Druck und Quenchkühlung des Rohgases

Verfahren zur Erzeugung von Rohgas mit Feinstaub unter 20 μm durch Vergasung von aschehaltigem Brennstaub, wie Steinkohlen, Braunkohlen und Petrolkokse im Flugstrom mit einem freien Sauerstoff enthaltenden Oxidationsmittel durch partielle Oxidation bei Drücken zwischen Umgebungsdruck und 80 bar sowie Temperaturen zwischen 1.200 bis 1.900 Grad, aufweisend die Verfahrensschritte pneumatisches Dosieren für Brennstaub, Vergasungsreaktion in einem Reaktor mit gekühlter Reaktorraumkontur, Quenchkühlung, Rohgaswäsche und Teilkondensation, wobei: – ein Brennstaub mit einem Wassergehalt < 10 Ma% und einer Korngröße < 200 μm einem pneumatischen Dosiersystem zugeführt wird, wobei der Brennstaub über einen Bunker (1.1) in mindestens eine Druckschleuse (1.2) gelangt und mit einem Druck zwischen Umgebungsdruck und 80 bar mit einem kondensatfreien Gas beaufschlagt einem Dosiergefäß (1.3) zugeführt wird, in dessen Unterteil ein inertes Gas (1.8.) eingeleitet wird, so dass eine Wirbelschicht mit einer Dichte von 350 bis 420 kg/m3 entsteht, die durch Förderrohre (1.4) zu dem Brenner (2.2) des Reaktors (2) gelangt, – der über ein Förderrohr (1.4) dem Reaktor (2) zugeführten Brennstaub gemeinsam mit einem freien Sauerstoff enthaltenden Oxidationsmittel im Reaktionsraum (2.3), mit Kühlschirm (2.4), einer partiellen Oxidation unterzogen wird, wobei die Asche des Brennstoffes aufgeschmolzen und gemeinsam mit dem heißen Vergasungsgas über die Ablaufvorrichtung (2.5) in den Quenchraum (3.1) des Quenchkühlers (3) überführt wird, – die Quenchung bei Temperaturen zwischen 180 und 260°C stattfindet, – das gequenchte, wasserdampfgesättigte Rohrgas zur Reinigung von mitgerissenem Feinstaub einer Rohgaswäsche (4) unterzogen wird, – das Rohgas zur Entfernung von Feinstaub < 20 μm und Salznebel in einer Kondensationsstufe um 5 bis 10°C indirekt abgekühlt wird. Process for the production of raw gas with fine dust below 20 microns by gasification of ash-containing fuel dust, such as coal, ...

PROCESS AND FURNACE FOR THE PRODUCTION OF TiO

A process for the production of titanium dioxide by dissolving titanium raw materials with sulfuric acid, producing a metal sulfate-containing titanyl sulfate solution, hydrolyzing the titanyl sulfate, separating the titanium dioxide hydrate from the metal sulfate-containing sulfuric acid by filtration, optionally bleaching the titanium dioxide hydrate by reducing treatment in acidic solution and calcining the titanium dioxide hydrate optionally mixed with doping chemicals and rutile nuclei to titanium dioxide, characterized in that the sulfate-containing titanium dioxide hydrate is dried in a dryer at temperatures from 90 to 400 °C, preferably 90 to 200 °C, especially 90 to 150 °C, and the titanium dioxide hydrate dust from the dryer exhaust is separated by filtration, the dried titanium dioxide hydrate is calcined in a rotary kiln directly heated with flue gasses at temperatures in the range from 800 to 1100 °C (solids temperature) and the exhaust is de-dusted and de-sulfurized as well ...

Gasification method and device for producing synthesis gases by partial oxidation of fuels containing ash at elevated pressure with partial quenching of the crude gas and waste heat recovery

Method and device for producing synthesis gases by partial oxidation of slurries prepared from fuels containing ash and full quenching of the crude gas

Verfahren und Ofen zur Herstellung von TiO 2 -Pigment nach dem Sulfatverfahren

A process for the production of titanium dioxide by dissolving titanium raw materials with sulfuric acid, producing a metal sulfate-containing titanyl sulfate solution, hydrolyzing the titanyl sulfate, separating the titanium dioxide hydrate from the metal sulfate-containing sulfuric acid by filtration, optionally bleaching the titanium dioxide hydrate by reducing treatment in acidic solution and calcining the titanium dioxide hydrate optionally mixed with doping chemicals and rutile nuclei to titanium dioxide, characterized in that the sulfate-containing titanium dioxide hydrate is dried in a dryer at temperatures from 90 to 400 DEG C, preferably 90 to 200 DEG C, especially 90 to 150 DEG C, and the titanium dioxide hydrate dust from the dryer exhaust is separated by filtration, the dried titanium dioxide hydrate is calcined in a rotary kiln directly heated with flue gasses at temperatures in the range from 800 to 1100 DEG C (solids temperature) and the exhaust is de-dusted and de-sulfurized ...

Verfahren und Vorrichtung zur geregelten Zufuhr von Brennstaub in einen Flugstromvergaser

Verfahren zur geregelten Dosierung und Zuführung von Brennstäuben unter Druck in Vergasungsreaktoren oder anderen Abnehmern, wobei der Brennstaub aus einem Betriebsbunker (1) über mindestens eine Druckschleuse (2) einem Dosiergefäß (3) zugeführt wird, in dessen Unterteil durch Zuführung von Wirbelgas über einen Wirbelboden eine dichte Wirbelschicht entsteht, in die waagerecht oder vertikal mindestens ein Förderrohr (3.3) eintaucht, durch das der Brennstaub kontinuierlich über einen Brenner (4.1) einem unter Druck stehenden Vergasungsreaktor (4) zugeführt wird, und wobei eine Druckdifferenz zwischen dem Dosiergefäß (3) und dem Vergasungsreaktor (4) gegeben ist, wobei – Hilfsgas (3.9) in die Förderleitung (3.3) zugeführt wird, wobei die Zuführung von Hilfsgas (3.9) in die Förderleitung (3.3) unmittelbar am Förderleitungseinlauf im Dosiergefäß (3) erfolgt und die Zuführung von Hilfsgas (3.9) zwischen dem Vergasungsreaktor (4) und dem Dosiergefäß (3) in die Förderleitung (3.3) für den Staubstrom erfolgt, – in der Förderleitung zwischen dem Dosiergefäß und dem Vergasungsreaktor der Brennstaubstrom gemessen wird, und – an Hand des gewonnenen Wertes für den Brennstaubstrom mittels einer Armatur die notwendige Hilfsgasmenge eingestellt wird. Method for the controlled metering and delivery of fuel dust under pressure in gasification reactors or other customers, wherein the fuel dust from an operating bunker (1) via at least one pressure lock (2) is fed to a metering vessel (3), in its lower part by supplying fluidizing gas through a fluidized bed a dense fluidized bed is formed in which horizontally or vertically at least one delivery pipe (3.3) is immersed, through which the fuel is continuously fed via a burner (4.1) to a pressurized gasification reactor (4), and wherein a pressure difference between the metering vessel (3) and the gasification reactor (4), wherein - auxiliary gas (3.9) is fed into the delivery line (3.3), wherein the supply of auxiliary gas (3.9) into the ...

Reactor wall for a fluidized-flow gasifier

A reactor wall for a entrained-flow gasifier for the gasification of carbon-containing fuels, by-products, and waste materials at elevated temperature and pressure includes, arranged sequentially from an outside surface of the wall to an inside surface of the wall: a pressure shell ( 2 ); a water-carrying ring-shaped gap ( 3 ); a cooling wall ( 4 ); a thermally conductive ramming material ( 5 ); a solid layer of slag ( 6 ); a liquid film of slag ( 7 ); and a gasification chamber ( 1 ).

Method and device for the regulated feed of pulverized fuel to an entrained flow gasifier

A method and device for metering and feeding pulverized fuels under pressure into gasification reactors, with the pulverized fuel being supplied alternately from an operational bunker through pressurized sluices to a metering tank, in the bottom of which a dense fluidized bed is formed by introducing fluidizing gas through a turbulence plate, with transport pipes immersed in the fluidized bed horizontally or vertically, by which the fluidized fuel is fed continuously through burners to a pressurized gasification reactor. By feeding in auxiliary gas in the immediate vicinity of the transport line inlet into the metering tank or the transport lines, the pressure differential between the metering tank and the gasification reactor is controlled and is utilized as a control parameter for pulverized fuel transport.

Vergasungsverfahren und Vorrichtung zur Erzeugung von Synthesegasen durch Partialoxidation von aschehaltigen Brennstoffen unter erhöhtem Druck mit Teilquenchung des Rohgases und Abhitzegewinnung

Die Erfindung betrifft ein Verfahren zur Vergasung von festen Brennstoffen, wie Steinkohlen, Braunkohlen und Petrolkokse, im flugstrom mit einem freien Sauerstoff enthaltenden Oxidationsmittel durch partielle Oxidation bei Drücken zwischen Umgebungsdruck und 80 bar sowie Temperaturen zwischen 1200 bis 1900 DEG , bestehend aus den Verfahrensschritten pneumatisches Dosieren für Brennstaub, Vergasungsreaktion in einem Reaktor mit gekühlter Reaktorraumkontur, Teilquenchung, Kühlung, Rohgaswäsche und Teilkondensation, wobei DOLLAR A - ein Brennstaub mit einem Wassergehalt < 10 Ma.-%, vorzugsweise < 2 Ma.-%, und einer Korngröße < 200 mum, vorzugsweise 100 mum, einem pneumatischen Dosiersystem zugeführt wird, wobei der Brennstaub über einem Bunker (1.1) in mindestens eine Druckschleuse (1.2) gelangt und mit einem Druck zwischen Umgebungsdruck und 80 bar mit einem kondensatfreien Gas beaufschlagt einem Dosiergefäß (1.3) zugeführt wird, in dessen Unterteil ein inertes Gas (1.8) eingeleitet wird, ...

Verfahren und Vorrichtung zur Kühlung und Reinigung von Vergasungsgasen

Die Erfindung betrifft ein Verfahren zur Kühlung und Reinigung von Vergasungsrohgasen, die bei der Vergasung von Brenn-, Rest- und Abfallstoffen entstehen und bei Normal- und höherem Druck und mit Temperaturen zwischen 1100-1600 DEG C aus dem Vergasungsraum eines Flugstromvergasers in ein Kühl- oder Quenchsystem eintreten, wobei das Kühl- und Quenchsystem aus einem Vanturirohr besteht, in dessen engstem Querschnitt das zu kühlende und zu reinigende Rohgas auf Geschwindigkeiten zwischen 30 und 150 m/s beschleunigt wird und in das vor oder im engsten Querschnitt Kühlmittel zugeführt wird sowie Vorrichtungen zur Durchführung des Verfahrens. The invention relates to a method for cooling and purifying raw gasification gases which arise during the gasification of fuels, residues and waste materials and at normal and higher pressure and with temperatures between 1100-1600 ° C. from the gasification space of an entrained flow gasifier into a cooling or enter the quench system, the cooling and quench system consisting of a Vanturi tube, in the narrowest cross-section of which the raw gas to be cooled and cleaned is accelerated to speeds between 30 and 150 m / s and into which coolant and devices are supplied before or in the narrowest cross-section to carry out the procedure.

Simultaneous gasification of coals of widely differing degrees of coalification in entrained flow gasification

The invention relates to a gasification method which, with a reliable and safe mode of operation, allows the simultaneous gasification of coals of different degrees of coalification, including those of differing coal qualities such as brown coals and stone coals, with the pulverized fuel consisting of the mixture of the different coals being fed from a common dispensing system to the gasification reactor.

Gasification method and device for producing synthesis gases by partial oxidation of fuels containing ash at elevated pressure with partial quenching of the crude gas and waste heat recovery

A method and device for the gasification of solid fuels such as bituminous coal, lignite coal, and petroleum coke in the flue stream, with an oxidizing medium containing free oxygen by partial oxidation at pressures between atmospheric pressure and 80 bar, and at temperatures between 1200 and 1900° C., consisting of the process steps of pneumatic metering for pulverized fuel, gasification in a flue stream reactor with cooled reaction chamber contour, partial quenching, cooling, crude gas scrubbing, and partial condensation.

Verfahren und Vorrichtung zur geregelten Zufuhr von Brennstaub in einem Flugstromvergaser

Die Erfindung betrifft ein Verfahren zur Dosierung und Zuführung von Brennstäuben unter Druck in Vergasungsreaktoren, wobei der Brennstaub aus einem Betriebsbunker (1) wechselseitig über Druckschleusen (2) einem Dosiergefäß (3) zugeführt wird, in dessen Unterteil durch Zuführung von Wirbelgas über einen Wirbelboden eine dichte Wirbelschicht entsteht, in die waagerecht oder vertikal Förderrohre (3.3) eintauchen, durch die der Brennstaub kontinuierlich über Brenner (4.1) einem unter Druck stehenden Vergasungsreaktor (4) zugeführt wird, welches sich dadurch auszeichnet, dass durch eine Zuführung von Hilfsgas (3.9) in die unmittelbare Nähe des Förderleitungseinlaufs im Dosiergefäß (3) oder die Förderleitungen (3.3) die Druckdifferenz zwischen dem Dosiergefäß (3) und dem Vergasungsreaktor (4) beeinflusst und als Regelgröße für den Staubtransport genutzt wird, und eine Vorrichtung zur Durchführung des Verfahrens.

Vorrichtung zur Erzeugung von Synthesegasen durch Partialoxidation von aschehaltigen Brennstoffen unter erhöhtem Druck mit Teilquenchung des Rohgases und Abhitzegewinnung

Vorrichtung zur Erzeugung von Rohgas mit Feinstaub unter 20 pm durch Vergasung von staubförmigen, aschehaltigen Brennstoffen, wie Steinkohlen, Braunkohlen und Petrolkokse im Flugstrom mit einem freien Sauerstoff enthaltenden Oxidationsmittel durch partielle Oxidation bei Drücken zwischen Umgebungsdruck und 8 MPa (80 bar) sowie Temperaturen zwischen 1.200 bis 1.900 Grad, und Abhitzegewinnung aufweisend— ein pneumatisches Dosiersystem (1) für Brennstaub mit einem Wassergehalt < 10 Ma% und einer Korngröße < 200 pm, zur Zuführung von Brennstaub über Leitungen (1.5) zu einem Bunker (1.1), dessen Ausgang in mindestens eine Druckschleuse (1.2) mündet, in die eine Leitung (1.6) für Inertgas und eine Leitung für entspanntes Gas (1.7) münden, wobei der Auslauf der Druckschleuse (1.2) zu einem Dosiergefäß (1.3) führt, in deren unterem Teil eine Leitung (1.8) für Inertgas angeordnet ist und in deren oberem Teil mindestens eine Förderleitung (1.4) mit fluidisiertem Brennstoff zu einem Reaktor (2) führt ...

KOHLENSTAUBBRENNER

Verfahren und Vorrichtung zur geregelten Zufuhr von Brennstaub in einen Flugstromvergaser

Verfahren zur geregelten Dosierung und Zuführung von Brennstäuben unter Druck in Vergasungsreaktoren oder anderen Abnehmern, wobei der Brennstaub aus einem Betriebsbunker (1) über mindestens eine Druckschleuse (2) einem Dosiergefäß (3) zugeführt wird, in dessen Unterteil durch Zuführung von Wirbelgas über einen Wirbelboden eine dichte Wirbelschicht entsteht, in die waagerecht oder vertikal mindestens ein Förderrohr (3.3) eintaucht, durch das der Brennstaub kontinuierlich über einen Brenner (4.1) einem unter Druck stehenden Vergasungsreaktor (4) zugeführt wird, und wobei eine Druckdifferenz zwischen dem Dosiergefäß (3) und dem Vergasungsreaktor (4) gegeben ist, dadurch gekennzeichnet, dass Hilfsgas (3.9) in die unmittelbare Nähe des Förderleitungseinlaufs im Dosiergefäß (3) oder in die Förderleitung (3.3) zugeführt wird, in der Förderleitung zwischen dem Dosiergefäß und dem Vergasungsreaktor der Brennstaubstrom gemessen wird, und an Hand des gewonnenen Wertes für den Brennstaubstrom mittels ...

VERFAHREN UND OFEN FÜR DIE HERSTELLUNG VON TiO2 PIGMENTE NACH DEM SULFATVERFAHREN

Solid fuel, e.g. hard coal, gasification, involves transferring melted fuel ash together with hot gasification gas device, and subjecting quenched crude gas saturated with water vapor to crude gas washing unit for cleaning dust

The process involves supplying combustion dust with a specific water content to a pneumatic dosing system. An inert gas is applied in the upper section of a dosing container so that fluidized bed occurs in the container. The ash of the fuel is melted and is transferred together with the hot gasification gas over an outlet opening (2.5) in a Quenching space (3.1) of a Quenching cooler. The quenched crude gas that is saturated with water vapor is subjected to a crude gas washing unit or mechanical dust precipitator for cleaning the dust. An independent claim is also included for a device for implementing the method for gasification of solid fuel e.g. hard coal, brown coal and Petroleum coke in a fluidized flow.

Process and furnace for production of TiO2 pigment according to sulfate process

Gasification method and device for producing synthesis gases by partial oxidation of fuels containing ash at elevated pressure and with quench-cooling of the crude gas

A method and device for the gasification of solid fuels such as bituminous coal, lignite coal, and petroleum coke in the flue stream with an oxidizing medium containing free oxygen, by partial oxidation at pressures between atmospheric pressure and 80 bar and at temperatures between 1,200 and 1,900 degrees. The fuel is gasified by pneumatic metering of pulverized fuel, gasification reaction in a reactor with cooled reactor chamber contour, quencher cooling, crude gas scrubbing, and partial condensation.

Simultaneous gasification of coals of widely differing degrees of coalification in entrained flow gasification

A method for gasification of fuel in an entrained flow of a gasification reactor. The method includes jointly gasifying a mixture of at least two different fuels having different degrees of coalification, including those of differing coal qualities such as brown coals and stone coals. The method also includes pulverizing the coals forming the mixture in specific grain bands and drying the coals forming the mixture to a specific residual water content.

Method and device for the regulated feed of pulverized fuel to an entrained flow gasifier

A method and device for metering and feeding pulverized fuels under pressure into gasification reactors, with the pulverized fuel being supplied alternately from an operational bunker through pressurized sluices to a metering tank, in the bottom of which a dense fluidized bed is formed by introducing fluidizing gas through a turbulence plate, with transport pipes immersed in the fluidized bed horizontally or vertically, by which the fluidized fuel is fed continuously through burners to a pressurized gasification reactor. By feeding in auxiliary gas in the immediate vicinity of the transport line inlet into the metering tank or the transport lines, the pressure differential between the metering tank and the gasification reactor is controlled and is utilized as a control parameter for pulverized fuel transport.

Method and device for producing synthesis gases by partial oxidation of slurries prepared from fuels containing ash and full quenching of the crude gas

A method and device for the gasification of solid fuels such as bituminous coals, and cokes such as those from bituminous coals, lignite coals, and biomasses, as well as petroleum cokes, that are ground fine and mixed with water or oil to obtain fuel-in-liquid suspensions, so-called slurries, and their gasification together with an oxidizing medium containing free oxygen, by partial oxidation at pressures between atmospheric pressure and 100 bar, and at temperatures between 1200 and 1900° C. in an entrained flow reactor. The method includes slurry preparation and infeed to the reactor, gasification in an entrained flow reactor with cooled reaction chamber contour, full quenching of the crude gas to saturation temperature that may be 180-260° C. depending on the gasification pressure, and wet or dry dust separation. The crude gas is pretreated so that it can be fed to further technological steps such as crude gas conversion, H2S and CO2 removal, and synthesis.

Method and device for producing synthesis gases by partial oxidation of slurries prepared from fuels containing ash and full quenching of the crude gas

A method and device for the gasification of solid fuels such as bituminous coals, and cokes such as those from bituminous coals, lignite coals, and biomasses, as well as petroleum cokes, that are ground fine and mixed with water or oil to obtain fuel-in-liquid suspensions, so-called slurries, and their gasification together with an oxidizing medium containing free oxygen, by partial oxidation at pressures between atmospheric pressure and 100 bar, and at temperatures between 1200 and 1900° C. in an entrained flow reactor. The method includes slurry preparation and infeed to the reactor, gasification in an entrained flow reactor with cooled reaction chamber contour, full quenching of the crude gas to saturation temperature that may be 180-260° C. depending on the gasification pressure, and wet or dry dust separation. The crude gas is pretreated so that it can be fed to further technological steps such as crude gas conversion, H₂S and CO₂ removal, and synthesis.

Method for the selective safety-related monitoring of entrained-flow gasification reactors

The present invention relates to a method for the selective safety-related monitoring of entrained-flow gasification reactors. While ensuring technical safety and a short start-up time the invention permits the operation of autothermic partial oxidation of fuels processed into pulverized fuel such as lignite and bituminous coals, petroleum cokes, solid grindable carbon-containing residues, as well as solid-liquid suspensions or slurries, with a gasification agent containing oxygen at operating pressures of up to 8 MPa (80 bar). The selective configuration of the fail-safe monitoring of the gasification process only the supply of the main fuel is cut off. Through the continued operation of the pilot and ignition burner the reactor is kept at operating pressure and after the fault has been rectified fuel gasification can be restarted with the pilot and ignition burner without a complicated placement and pulling of a starter burner and subsequent pressurization of the reactors.

Gasification method and device for producing synthesis gases by partial oxidation of fuels containing ash at elevated pressure with partial quenching of the crude gas and waste heat recovery

A method and device for the gasification of solid fuels such as bituminous coal, lignite coal, and petroleum coke in the flue stream, with an oxidizing medium containing free oxygen by partial oxidation at pressures between atmospheric pressure and 80 bar, and at temperatures between 1200 and 1900° C., consisting of the process steps of pneumatic metering for pulverized fuel, gasification in a flue stream reactor with cooled reaction chamber contour, partial quenching, cooling, crude gas scrubbing, and partial condensation.

Gasification method and device for producing synthesis gases by partial oxidation of fuels containing ash at elevated pressure and with quench-cooling of the crude gas

A method and device for the gasification of solid fuels such as bituminous coal, lignite coal, and petroleum coke in the flue stream with an oxidizing medium containing free oxygen, by partial oxidation at pressures between atmospheric pressure and 80 bar and at temperatures between 1,200 and 1,900 degrees. The fuel is gasified by pneumatic metering of pulverized fuel, gasification reaction in a reactor with cooled reactor chamber contour, quencher cooling, crude gas scrubbing, and partial condensation.

Method for the selective safety-related monitoring of entrained-flow gasification reactors

While ensuring technical safety and a short start-up time the invention permits the operation of autothermic partial oxidation of fuels processed into pulverized fuel such as lignite and bituminous coals, petroleum cokes, solid grindable carbon-containing residues, as well as solid-liquid suspensions or slurries, with a gasification agent containing oxygen at operating pressures of up to 8 MPa (80 bar). The selective configuration of the fail-safe monitoring of the gasification process only the supply of the main fuel is cut off. Through the continued operation of the pilot and ignition burner the reactor is kept at operating pressure and after the fault has been rectified fuel gasification can be restarted with the pilot and ignition burner without a complicated placement and pulling of a starter burner and subsequent pressurization of the reactors.

Tool For Removing A Chisel

A tool for removing a chisel, in particular from a chisel holder, having a base element which receives an actuating member, wherein the actuating member has an expeller mandrel. The actuating member is adjustable along a displacement direction. In order to be able to perform the removal simply and rapidly, the actuating member of this invention is indirectly or directly coupled to a piston of a fluid-charged cylinder, or to an electric motor unit. 1. A method of removing a chisel from a chisel holder , the method comprising:(a) engaging a base element of a hand held power tool with a supporting surface of the chisel holder; and(b) moving an actuating member of the power tool in a curved path relative to the base element with power from a power source, and engaging a free end of the chisel with the actuating member and pushing the chisel out of the chisel holder with the actuating member.2. The method of claim 1 , wherein:in step (b) the actuating member moves toward the base element.3. The method of claim 1 , wherein:the power source includes a cylinder-piston system.4. The method of claim 1 , wherein:the power source includes an electric motor.5. The method of claim 1 , wherein:the power source includes a pressurized fluid.6. The method of claim 1 , wherein:in step (b) the actuating member pivots relative to the base element.7. The method of claim 1 , further comprising:limiting the movement of the actuating member by engagement of the actuating member with a stop arranged on the base element.8. The method of claim 1 , wherein:in step (a) the supporting surface engaged by the base element is a wear disc associated with the chisel holder.9. The method of claim 1 , wherein:step (a) further includes engaging the base element with a contact surface on the chisel holder spaced from the supporting surface of the chisel holder.10. The method of claim 1 , wherein:step (b) further includes guiding the actuating member between two lateral walls of the base element.11. The ...

Construction machinery

The invention relates to a road milling machine comprising a milling roller which is provided with a plurality of chisels. A signal receiving unit (S1) (S12) is assigned to a machine component which is directly or indirectly involved in the milling process or to another machine component. The signal receiving unit (S1) (S12) detects an operating condition of the machine component and is connected to a signal emitting unit. In another embodiment of the invention, an optical detecting device (K) is assigned to the road milling machine, whereby operation is made easier and the milling pattern is optimized.

Construction machine with optimized operation

Mill cylinder for construction machinery, construction machinery and a drive unit for a mill cylinder

The roller (2) has replaceable milling pipe (4), which is coaxial to the milling roller axle (20). The milling pipe is swivel-mounted with the help of a reinforcing ring (8) on a reinforcing ring admission (12). The reinforcing ring and reinforcing ring admission of rotating support body has multiple support surfaces with different supporting diameters, that are complimentary to each other and are concentric with milling roller axle, which is arranged in series axially with sliding diameter in drawing direction. An independent claim is also included for gear unit for road miller.

Self-propelled road milling machine

Bei einer selbstfahrenden Straßenfräsmaschine mit einem Maschinenrahmen (2), in dem eine Fräswalze (4) drehbar zwischen orthogonal zur Achse der Fräswalze (4) verlaufenden Seitenplatten (12, 13) gelagert ist, wobei die einen Walzengrundkörper (14) und ein Fräsrohr (10) aufweisende Fräswalze (4) über eine außenseitig an der antriebsseitigen Seitenplatte (12) gelagerten Antriebseinrichtung (6) und ein Untersetzungsgetriebe (8) antreibbar ist, und wobei die der antriebsseitigen Seitenplatte (12) gegenüberliegende Seitenplatte (13) zum Auswechseln von alternativ einsetzbaren Fräsrohren (10) unterschiedlicher Fräsbreite leicht demontierbar ist und die Nullseite der Maschine (1) definiert, an der die Fräswalze (4) mit einer Stirnseite in etwa bündig anliegt, um ein kantennahes Fräsen zu ermöglichen, ist vorgesehen, dass das Untersetzungsgetriebe (8) antriebsseitig angeordnet ist, dass das Untersetzungsgetriebe (8) ein innenseitig von der antriebsseitigen Seitenplatte (12) angeordnetes Abtriebselement aufweist, dessen Mantelfläche (25) einen Sitz für von der Nullseite her aufschiebbare Fräsrohrelemente bildet, und dass der Walzengrundkörper (14) an der freien Stirnseite (23) des Abtriebselementes an das Untersetzungsgetriebe (8) angekoppelt ist, ohne das Aufschieben der Fräsrohrelemente zu behindern. In a self-propelled road milling machine with a machine frame (2) in which a milling drum (4) is rotatably mounted between side plates (12, 13) extending orthogonally to the axis of the milling drum (4), the one roller base body (14) and a milling tube (10 ) Milling drum (4) can be driven via a drive device (6) mounted on the outside on the drive side plate (12) and a reduction gear (8), and the side plate (13) opposite the drive side plate (12) for replacing milling tubes that can be used alternatively (10) of different milling widths can be easily dismantled and defines the zero side of the machine (1), on which the milling drum (4) lies approximately flush with one end face ...

Method for calcining filter cakes in direct-heated rotary kilns

Self-propelled road milling machine

Cutting tool

The invention relates to a cutting tool of a cutting machine, comprising a base part (20) and a bit holder (10). According to the invention, the bit holder is provided with a plug-in attachment (15), retained in a socket (22) of the base part and the latter has a stop (24) against which the bit holder rests. To prevent the penetration of water and stone dust and to allow the bit holder to be easily detached from the base part, a sealing element (30) is located between the bit holder and the base part, surrounding at least sections of the socket.

Construction machine and milling roller

In a construction machine comprising a machine frame (2) having a milling roller (18) arranged for rotation therein, the milling roller (18) comprising a roller base body (19) driven by a milling roller drive device (11 to 15) via a transmission unit (32), and a milling tube (25) to be coaxially mounted on the roller base body (19) and to be attached in a manner allowing exchange thereof, with the milling tube (25) carrying cutting tools on its outer surface (46), it is provided that the milling tube (25) comprises fastening elements (28), radially projecting from the inner surface (44), by which the milling tube (25) can be mounted in a rotationally fixed manner to the roller base body (19) or to a member connected to the roller base body (19).

Coalcutting machine pick wear disk is punched out as hexagon of maximum diameter points and interposed minima at spacing to cushion pick and pickholder wear.

The wear disk (10.1) is maximally diametered at poiints round the disk to equal the outside diameter of the machine pick (D), the disk diameter preferably diminishing between the maximum points to a minimum, halfway between two maximum points. The points of maximum diameter are equi-spaced round the disk at 60 deg giving n = 6 as the total of points. The disk preferably describes a hexagon of crests and valleys round the disk circle. The disks can be punched out in a spaced (d) row.

Cutting element for a coal cutting machine

Construction machine

A construction machine for machining floor surfaces, wherein the machine includes a milling roll having a plurality of tool holders on a surface thereof. A tool, especially a straight shank tool, is received in a tool receiving element of the tool holder in an exchangeable manner. With this invention it is possible to change the tool in one such construction machine in a simplified manner. Thus, the milling roll is associated with a tool changing device, and the tool changing device dismounts each tool from the tool holder and/or mounts each tool in the tool holder.

Tool Holder

A tool holder including a tool box with a tool seat in a holding projection for receiving a tool in such a manner that it can be replaced. The tool seat is configured as a bore and has a tool insertion opening. The tool holder has a fastening side with a fastening projection and, facing away from said fastening side, an exterior, and during use of the tool centrifugal forces are effective in the direction from the fastening side to the exterior. This invention ensures the free rotability of a tool inserted in the tool holder even if overburden material enters the tool seat. For this purpose, the holding projection has an opening penetrating the inner wall of the tool seat and creating a spatial connection to the exterior, and the opening opens the tool seat towards the exterior.

Fixing device for a shank chisel

LAMINATION DRUM FOR A CONSTRUCTION MACHINE, CONSTRUCTION MACHINE WELL AS GEARBOX UNIT FOR A LAMINATION DRUM

tambor de laminação para uma máquina de construção, máquina de construção bem como unidade de caixa de engrenagens para um tambor de laminação a presente invenção refere-se a um tambor de laminação (2) para uma máquina de construção rodoviária (1) ou um reciclador, com um tubo laminador intercambiável (4) disposto coaxialmente com o eixo geométrico (20) do tambor laminador, onde o tubo laminador (4) é sustentado, por intermédio de um anel de apoio (8), sobre um reparo de anel de apoio (12) de um corpo rotativo acoplado a um acionamento de tambor laminador (16), é assegurado que o anel de apoio (8) e o reparo do anel de apoio (12) do corpo rotativo exibam várias superfícies de apoio complementares dispostas coaxialmente com o eixo geométrico (20) do tambor laminador, onde as ditas superfícies de apoio (22, 24) têm diferentes diâmetros de circulo de apoio e são dispostas em sucessão axialmente com seus diâmetros decrescendo progressivamente na direção de tração. Laminating Drum for a Construction Machine, Construction Machine as well as Gearbox Unit for a Laminating Drum The present invention relates to a Laminating Drum (2) for a Road Construction Machine (1) or a Recycler , with an interchangeable rolling tube (4) arranged coaxially with the rolling axis geometry (20), where the rolling tube (4) is supported by a bearing ring (8) over a bearing ring repair (12) of a rotary body coupled to a rolling drum drive (16), it is ensured that the support ring (8) and the repair of the rotary body support ring (12) exhibit several complementary bearing surfaces arranged coaxially with the rolling axis (20) of the rolling drum, wherein said bearing surfaces (22, 24) have different bearing circle diameters and are arranged in succession axially with their diameters progressively decreasing in the direction of traction.

Patent DE3206908C2

Fixing device for a shank chisel

A fixing device for a shank chisel including a base part to which a chisel holder is attached in a manner that enables it to be exchanged. The chisel holder has a chisel location for the shank chisel and has a supporting face on which the shank chisel can be supported. The chisel holder is coupled to the base part by a pivot bearing, and the chisel holder rests against a mating face of the base part. This invention provides a stress-optimized design for the above-mentioned arrangement. Thus, according to this invention, when the chisel holder is mounted, a contact area formed between the contact face and the mating face is located between a rotation axis or a rotation path of the pivot bearing and the supporting face.

Mfr. of titanium di:oxide pigments with defined colour casts

System for exchanging pick holders having tension screws

The chisel holder (20), especially for a road surface cutting machine, is secured by a clamping bolt (15) at the mounting (11) on the road milling roller (10). The outer thread (16) of the clamping bolt and/or the inner thread (14) of the threaded drilling (13) at the holder mounting have a metal layer of zinc and aluminum segments with a chrome oxide bonding agent. The applied metal coating is fired when in place. The coating thickness is 5-10 mu m, and the number of segments per mu m of the coating increases the barrier effect of the coated surfaces. The coating is applied by immersion, centrifugally or spraying, to be dried and then fired at 300 degrees C. The friction value of the screw bond is reduced by the addition of a dry lubricant

Construction machine and milling roller

Round shaft chisel fits into chuck, in which it can rotate, inner contour of chuck and outer contour of shaft allowing chisel to swivel about its longitudinal axis

Die Erfindung betrifft einen Rundschaftmeißel mit einer Spannhülse, wobei der Rundschaftmeißel einen Meißelkopf und einen Meißelschaft aufweist, der drehbar in der Spannhülse gehalten ist, wobei zwischen einer Innenkontur der Spannhülse und einer Schaftkontur des Meißelschaftes ein Schwenklager derart gebildet ist, dass der Rundschaftmeißel mit seiner Mittellängsachse bezüglich einer Mittellängsachse der Spannhülse schwenkbar gelagert ist. Infolge der induzierten Taumelbewegung des Rundschaftmeißels innerhalb der Spannhülse während des Betriebs kann eine bessere Schmutzaustragung erreicht werden. Ein verbessertes Walzverhalten führt insbesondere zu einem verringerten Verschleiß zwischen Spannhülse und dem Meißelschaft, was sich vorteilhaft hinsichtlich der Standzeit auswirkt.

PROCEDURE FOR THE CALCINATION OF FILTRATION CAKES IN DIRECTLY HEATED TUBULAR ROTARY FURNACES.

EL INVENTO SE REFIERE A UN PROCEDIMIENTO PARA CALCINAR TORTAS DE FILTRACION EN HORNOS ROTATIVOS TUBULARES DE CALENTAMIENTO DIRECTO. EL PROCEDIMIENTO SE CARADCTERIZA PORQUE UNA PARTE DE LA TORTA DE FILTRACION SE PRESECA, ANTES DE INTRODUCIRLA EN EL HORNO ROTATIVO TUBULAR Y EL RESTO DE LA TORTA DE FILTRACION, SE UNE CON LA PARTE DE LA TORTA DE FILTRACION PRESECADA. THE INVENTION REFERS TO A PROCEDURE FOR CALCINATING FILTRATION CAKES IN DIRECT-HEATED TUBULAR ROTARY OVENS. THE PROCEDURE IS CHARACTERIZED BECAUSE A PART OF THE FILTRATION CAKE IS PRECAUTIONS, BEFORE INTRODUCING IT IN THE TUBULAR ROTARY FURNACE AND THE REST OF THE PRESET FILTRATION CAKE.

PROCESS AND FURNACE FOR THE PRODUCTION OF TiO2 PIGMENT ACCORDING TO THE SULFATE PROCESS

A process for the production of titanium dioxide by dissolving titanium raw materials with sulfuric acid, producing a metal sulfate-containing titanyl sulfate solution, hydrolyzing the titanyl sulfate, separating the titanium dioxide hydrate from the metal sulfate-containing sulfuric acid by filtration, optionally bleaching the titanium dioxide hydrate by reducing treatment in acidic solution and calcining the titanium dioxide hydrate optionally mixed with doping chemicals and rutile nuclei to titanium dioxide, characterized in that the sulfate-containing titanium dioxide hydrate is dried in a dryer at temperatures from 90 to 400 °C, preferably 90 to 200 °C, especially 90 to 150 °C, and the titanium dioxide hydrate dust from the dryer exhaust is separated by filtration, the dried titanium dioxide hydrate is calcined in a rotary kiln directly heated with flue gasses at temperatures in the range from 800 to 1100 °C (solids temperature) and the exhaust is de-dusted and de-sulfurized as well as a calcining furnace for the production of titanium dioxide from dried sulphate-containing titanium dioxide hydrate in the form of a rotary kiln with a length-diameter ratio in the range of 5 to 10.

Process for the preparation of a titanyl sulphate solution

A process is described for the preparation of a hydrolysable titanyl sulphate solution by the joint decomposition of slag/ilmenite mixtures with sulphuric acid and dissolving the solidified reaction composition in an aqueous solvent, the decomposition being carried out in the presence of organic substances from the group of the polysiloxanes and/or alkanol amines and/or phosphates.

Construction machine and milling roller

In a construction machine comprising a machine frame (2) having a milling roller (18) arranged for rotation therein, the milling roller (18) comprising a roller base body (19) driven by a milling roller drive device (11 to 15) via a transmission unit (32), and a milling tube (25) to be coaxially mounted on the roller base body (19) and to be attached in a manner allowing exchange thereof, with the milling tube (25) carrying cutting tools on its outer surface (46), it is provided that the milling tube (25) comprises fastening elements (28), radially projecting from the inner surface (44), by which the milling tube (25) can be mounted in a rotationally fixed manner to the roller base body (19) or to a member connected to the roller base body (19).

Concn. titanyl sulphate solns. - obtd. during the digestion of titanium ores with high iron contents

Ilmenites and/or raw materials contg. Ti, which include 20-40 wt. % Fe, are digested with sulphuric acid to produce a cake (a). The cake (a) is mixed with a soln. (b) in the presence of trivalent Ti ions to obtain a conc. titanyl sulphate soln. (c) Soln. (b) is obtd. by the digestion of a Ti slag (b1). Cake (a) is pref. obtd. by the continuous digestion of the raw materials with H2SO4. Soln. (b) pref. contains by wt. 25-40% total H2SO4 and 30-55% metal sulphates, esp. a soln. also contg. 220-240 g/l TiO2 used to dissolve cake (a) until a concn. of 250-275 g/l TiO2 is obtd. Soln. (b) pref. contains 0.1-4 esp. 1.3-1.6 g/l trivalent Ti ions calculated as TiO2, esp. where the cake (a) and soln. (b) are continuously fed into a holding tank into which a conc. soln. (b2) of a Ti (III)-salt is fed according to the redox potential of the soln. in the tank. Used for treating Ti ores with high iron content for the rapid prodn. of solns. (c) contg. a high yield of TiO2 and with high stability. The min. content of 250 g/l TiO2 in soln. (c) eliminates the need for evapn. of soln. (c), thus saving high energy costs.

Process and device for micronizing solid matter in jet mills

Lathe tool holder socket is surrounded by a block that translates via a stress-relief groove to an angled side-extension

A lathe tool holder has a socket block into which the tool is push-fit. The tool holder rectangular a flat tool support face (12) whose parallel sides (16.1) translate though an oblique angle to a horseshoe-shaped shoulder (13). The parallel sides translate to the shoulder via a dished stress-relief groove (15).

Method and device for micronising solids in a jet mill

Method for producing a strained layer on a substrate and layer structure

Die Erfindung betrifft ein Verfahren zur Erzeugung einer verspannten Schicht mit den Schritten: DOLLAR A - die Schicht wird auf einem Substrat angeordnet und verspannt, DOLLAR A - die verspannte Schicht wird strukturiert, DOLLAR A - die Schicht wird relaxiert, DOLLAR A - es werden gerichtete Versetzungen in der zu verspannenden Schicht gebildet. DOLLAR A Eine auf diese Weise erzeugte Schichtstruktur weist triaxial verspannte Schichten auf. The invention relates to a method for producing a strained layer comprising the steps: DOLLAR A - the layer is placed on a substrate and clamped, DOLLAR A - the strained layer is patterned, DOLLAR A - the layer is relaxed, DOLLAR A - are directed Displacements formed in the layer to be clamped. DOLLAR A layer structure produced in this way has triaxially strained layers.

Chisel holder

The invention relates to a chisel holder for a road milling machine or similar, comprising a base part (10) which bears a retaining shoulder (30), wherein said shoulder (30) comprises a chisel receiving element (31) and wherein a projection (15) is joined to the base part (10) in the direction of advancement of the chisel holder upstream from the retaining shoulder. In order to improve cutting performance, particularly when the elements that are to be milled exist in the form of large chips, the base part (10) is provided with a connecting section which is embodied as a chip breaker and which is formed on the base part (10) and which extends, from the retaining shoulder (30) onwards, over the projection (15) in at least partial manner.

Device for holding a shank bit

Vorrichtung zur Halterung eines Schaftmeißels mit einem Basisteil, an dem auswechselbar ein Meißelhalter befestigt ist, wobei der Meißelhalter eine Meißelaufnahme für den Schaftmeißel aufweist, wobei der Meißelhalter eine Stützfläche aufweist, auf der der Schaftmeißel abstützbar ist, wobei der Meißelhalter an dem Basisteil mittels einer Schwenklagerung angekoppelt ist, und wobei der Meißelhalter mittels einer Kontaktfläche an einer Gegenfläche des Basisteils anliegt, dadurch gekennzeichnet, dass im montierten Zustand des Meißelhalters (20), der zwischen der Kontaktfläche (23.4) und der Gegenfläche (19.2) gebildeten Kontaktbereich zwischen der Drehachse oder der Drehbahn der Schwenklagerung und der Stützfläche (26) angeordnet ist, dass das Basisteil (10) und der Meißelhalter (20) Wandungen (16 und 23.2) aufweisen, und dass im montierten Zustand die Schwenkbewegung des Meißelhalters (20) mittels der aneinander schlagenden Wandung (23.3) begrenzt und der Meißelhalter (20) mittels einer Befestigungsschraube am Basisteil (10) festgelegt ist. Apparatus for supporting a shank bit having a base to which a bit holder is interchangeably attached, the bit holder having a bit receptacle for the bit, the bit holder having a support surface on which the bit is supportable, the bit holder being secured to the base by means of a pivotal mounting is coupled, and wherein the bit holder rests by means of a contact surface on a mating surface of the base part, characterized, in the assembled state of the bit holder (20), the contact area formed between the contact surface (23.4) and the counter surface (19.2) is arranged between the axis of rotation or the rotational path of the pivot bearing and the support surface (26), that the base part (10) and the bit holder (20) have walls (16 and 23.2), and that in the assembled state, the pivotal movement of the chisel holder (20) by means of the abutting wall (23.3) limited and the bit holder (20) by means of a fastening screw on the base ...

Chisel Holder System

A chisel holder system including a base part and a chisel holder. The base part includes a socket wherein the chisel holder with a plug-in insert is introduced. The chisel holder has a bearing surface supported on a supporting surface of the base plate, and the base part has a shoulder connected to the supporting surface. A replacement chamber is formed between the shoulder and a facing end surface of the chisel holder. According to this invention, the supporting surface is placed in the transition region in relation to the shoulder by at least one recess of the shoulder so that the flat-shaped connection between the supporting surface and the shoulder, in the region of the recess, is interrupted in order to optimize the resistance to wear and tear of the base part.

PROCEDURE AND DEVICE FOR THE MICRONIZATION OF SOLIDS IN JET MILLS.

EL INVENTO PRESENTE SE REFIERE A UN PROCEDIMIENTO PARA MICRONIZAR SUSTANCIAS EN MOLINOS DE CHORRO, QUE PASAN A TRAVES DE UN INYECTOR AL MOLINO, REALIZANDOSE EL MICRONIZADO SI ES NECESARIO CON PRODUCTOS DE TRITURADO Y/O DISPERSION, PASANDO LAS SUSTANCIAS SOLIDAS DE FORMA FORZADA HACIA EL INYECTOR THE PRESENT INVENTION REFERS TO A PROCEDURE FOR MICRONIZING SUBSTANCES IN JET MILLS, WHICH GO THROUGH AN INJECTOR TO THE MILL, PERFORMING THE MICRONIZATION, IF NECESSARY, WITH FORCED CRUSHING AND / OR DISPERSION PRODUCTS. INJECTOR

Fixing device for a shank chisel

A fixing device for a shank chisel, having a base part and an upper part, wherein the upper part is detachably connected to the base part. The upper part has an opening for receiving a shank chisel and the base part has a shaft opening, into which a shaft of the upper part is inserted, and the shaft has a tensioning surface that rests against the counter surface of a clamping element. The clamping element has a tensioning screw which is used to clamp the tensioning surface against the counter surface. The base part has a shoulder surface, which is located in the vicinity of or near the shank opening and at least partially surrounds the shank opening. A stop surface adjoins the rear region of the shoulder surface in the infeed direction at an angle. The upper part rests on the stop surface by a supporting surface and is held at a distance, at least in sections, from the base part.

Self-propelled road milling machine

The invention relates to a self-propelled road milling machine comprising a machine chassis (2), inside of which a milling roll (4) is rotationally mounted between lateral plates (12,13) that are orthogonal to the axis of the milling roll (4). This milling roll (4), which has a roll base body (14) and a milling tube (10), can be driven via a drive device (6), which is mounted on the exterior of the input-side lateral plate (12), and via a reduction gear unit (8). The lateral plate (13), which is provided for exchanging alternatively mountable milling tubes (10) of different milling widths and which is situated opposite the input-side lateral plate (12), can be easily detached and defines the null side of the machine (1) against which the face of the milling roll (4) rests in an approximately flush manner. In order to enable a milling that is near the edge, the invention provides that the reduction gear unit (8) is mounted on the input side, and that the reduction gear unit (8) comprises an output element, which is mounted on the interior of the input-side lateral plate (12) and whose outer surface (25) forms a seat for milling tube elements that can be slid thereon from the null side. In addition, the invention provides that the roll base body (14) is coupled to the reduction gear unit (8) via the free face (23) of the output element without preventing the milling tube elements from being slid on.

Gasification method and device for producing synthesis gases by partial oxidation of fuels containing ash at elevated pressure and with quench-cooling of the crude gas

Abstreif- und sammelschild für oberflächenfräsmaschinen

Fräswalze für eine baumaschine, baumaschine sowie getriebeeinheit für eine fräswalze

Meisselhalterwechselsystem

Werkzeug-haltevorrichtung

Flüssigkeitsverteiler

Anlage zur tieftemperaturzerlegung von luft

Selbstfahrende strassenfräsmaschine

Halterung für einen schaftmeissel

Schneidkörper für eine schrämmaschine

Anlage zur tieftemperaturzerlegung von luft

Abstreif- und Sammelschild für Oberflächenfräsmaschinen

Baumaschine sowie fräswalze

Schrämwerkzeug

Vorrichtung zur halterung eines schaftmeissels

Abstreif- und Sammelschild für Oberflächenfräsmaschinen

Processo para a moagem de pigmentos

Escudo de rascado y recogida para maquina fresadora de calzadas.

Máquina de construcción, y en particular fresadora de calzadas (1), en la que son aplicables dentro de una máxima anchura de fresado cilindros fresadores (2) de distintas anchuras de fresado, con al menos un primer escudo recogedor (10) que está dispuesto de forma tal que es desplazable en altura detrás del cilindro fresador (2) en la dirección de marcha, pudiendo dicho primer escudo recogedor deslizarse por sobre la superficie (3) a fresar o fresada por el cilindro fresador (2) que es al menos uno; caracterizada por el hecho de que - el primer escudo recogedor (10) cubre la máxima anchura de fresado; y de que - está previsto un dispositivo de sujeción (16) que es desplazable en altura con respecto al primer escudo recogedor (10) y es para al menos un segundo escudo recogedor (20) que está adaptado al cilindro fresador (2) respectivamente utilizado, que es al menos uno, siendo el segundo escudo recogedor (20) susceptible de ser posicionado dentro de la anchura del primer escudo recogedor (10) en una posición correspondiente al cilindro fresador (2) con ayuda del dispositivo de sujeción (16).

Zařízení k nízkoteplotnímu rozkladu vzduchu

Zařízení k nízkoteplotnímu rozkladu vzduchu

Zařízení k nízkoteplotnímu rozkladu vzduchu je vytvořeno s alespoň jednou rektifikační kolonou (15), která je připojena k vedení (28) pro přívod rozkládaného vzduchu, k vedení (34) dusíku pro odvod dusíkové frakce, k vedení (33) kyslíku pro odvod kyslíkové frakce a je opatřena alespoň jedním izolačním pláštěm (18), který vymezuje izolační prostor (23), ve kterém jsou umístěna vedení k rektifikační koloně (15) a ke kterému je rektifikační kolona (15) připojena. Alespoň rektifikační kolona (15) je ustavena ve stanovené poloze v izolačním prostoru (23) pomocí lanových prvků (20, 21, 22, 26, 40, 41).ŕ

Anlage zur tieftemperaturzerlegung von luft

Anlage zur tieftemperaturzerlegung von luft

Die Erfindung betrifft eine Anlage zur Tieftemperaturzerlegung von Luft mit mindestens einer in einem Isolationsraum (23) angeordneten Rektifiziersäule. Um die Befestigung der Rektifiziersäule (15) im Isolationsraum (23) zu vereinfachen, ist mindestens die Rektifiziersäule (15) mittels seilförmigen Elementen (25, 26, 40, 41) so im Isolationsraum (23) verspannt, daß sie in einer vorgegebenen Lage angeordnet ist.

Anlage zur tieftemperaturzerlegung von luft

Titandioxid-pigmente mit hoher vergrauungsstabilitaet fuer harzkompositionen

Flüssigkeitsverteiler

Flüssigkeitsverteiler

Foerfarande foer framstaellning av vaesentligen icke graonande titandioxidpigment

Foerfarande foer framstaellning av vaesentligen icke graonande titandioxidpigment

Anlage zur tieftemperaturzerlegung von luft

Tool-holding device

Processo para o tratamento térmico de dióxido de titânio em um leito fluidizado circulante e o seu uso