PRODUCTION PROCESS FOR GANGUE LOW TEMP. CEMENT AND FLUID-BED CALCINER PLANT

Modeling method for hydrogenation reaction effluent system failure control parameter

The invention discloses a modeling method for invalidation control parameter of hydrogenation reaction effluent system; wherein, the invalidation control parameter modeling comprises a KP value, the concentration of NH4HS, the theoretical quantity of water injection, the deposition temperature of NH4HS, the deposition temperature of NH4Cl and the mean velocity of air cooler. The modeling method is characterized in that the operation parameters of hydrogenation reaction effluent system are loaded by the DCS control system data base, the material chemical examination analysis data and the principle flow chart of hydrogenation reaction are combined, the modeling is processed according to the concrete invalidation control parameter in the running of hydrogenation reaction effluent system variable condition, and that the KP value, the concentration of NH4HS, the theoretical quantity of water injection, the deposition temperature of NH4HS, the deposition temperature of NH4Cl and the mean velocity ...

Cosmetic additive containing super absorbent resin

The invention relates to a cosmetic additive, in particular to a cosmetic additive containing a super absorbent resin. The cosmetic additive containing the super absorbent resin comprises the following raw materials in parts by weight: 25-27 parts of tea polyphenol, 48-53 parts of octylene glycol, 18-24 parts of timnodonic acid, 12-15 parts of vitamin A, 8-10 parts of tartaric acid and 12-16 parts of the super absorbent resin. The cosmetic additive containing the super absorbent resin provided by the invention adopts various skin-protecting ingredients, especially the super absorbent resin, can be used for absorbing sweat and keeping the skin surface dry and comfortable, and does not generate a greasy effect.

High-water-absorption swelling waterproof cream for optical cable

The invention relates to materials for cables and particularly relates to high-water-absorption swelling waterproof cream for an optical cable. The high-water-absorption swelling waterproof cream is prepared from the following raw materials in parts by weight: 50-70 parts of poly-alpha-olefin synthetic oil, 30-50 parts of paraffin oil, 7-10 parts of silicon rubber, 5-8 parts of silica powder, 3-5 parts of fluorocarbon acrylate resin, 6-12 parts of super-absorbent resin, 0.3-0.6 part of N-phenyl-alpha-aniline and 0.2-0.4 part of melamine cyanurate. The high-water-absorption swelling waterproof cream for the optical cable, provided by the invention, is uniform in material distribution and difficult in flow and is prepared from composite materials, so that the waterproof cream is ageing-resistant and has a long service life.

Pneumatic transport shipment equipment with dust-removing and pressure-releasing cavity

The invention provides a pneumatic transport shipment equipment with dust-removing and pressure-releasing cavity, comprising a feed delivery pipe, a pneumatic actuator and dust removing equipment; wherein, the pneumatic actuator is connected with the feed delivery pipe, and the dust removing equipment is near to the output end of the feed delivery pipe. The dust removing equipment comprises a cover body, a filtering apparatus and a getter device; wherein, the inner hollow cavity of the cover body comprises a filtering cavity above the output end and the pressure-releasing cavity below the output end. In the shipment equipment of the invention, the lower part of the dust removing equipment is provided with the pressure-releasing cavity, and the getter device such as a draught fan, and the like, can generate effective subpressure in the limited pressure-releasing cavity; and the pressure-releasing cavity consistently keeps the subpressure effect when materials are transported, in the process ...

Preparation method of salt-tolerant super absorbent resin

The invention relates to a preparation method of a salt-tolerant super absorbent resin. According to the method, acrylic acid and bentonite are used as raw materials; the method comprises the following steps: uniformly mixing the acrylic acid with water and then neutralizing with an alkaline aqueous solution to obtain a neutralization solution; adding the bentonite into the neutralization solution; adding a cross-linking agent in a stirring state; uniformly mixing and then heating to 30-50 DEG C; adding an initiator to perform polymerization reaction to obtain hydrogel after the reaction is finished; granulating, drying and crushing to obtain water-absorbent resin particles; performing surface treatment on the obtained water-absorbent resin particles to obtain the salt-tolerant super absorbent resin. The prepared salt-tolerant super absorbent resin has high salt absorption multiplying power and good water absorption.

Online monitoring method and equipment for high-voltage circuit breaker

The invention relates to an online monitoring method and equipment for high-voltage circuit breaker. The online monitoring method includes steps of 100) sampling phase current during gate opening and closing and calculating gate opening and closing current according to the sampled data; 200) acquiring contact electrical wear Q according to gate opening and closing current and rated current of the high-voltage circuit breaker; 300) acquiring gate opening and closing average speed; 400) uploading the acquired gate opening and closing average speed and the contact electric wear to a monitoring center. Compared with the prior art, the online monitoring method and equipment have the advantages of good monitoring effect and the like.

Intelligent long-distance electric larceny preventing checking system

The invention relates to the technology of electric larceny preventing, in particular to an intelligent long-distance electric larceny preventing checking system which solves the problem that there is no electric larceny preventing system capable of effectively monitoring and analyzing various electric larceny behaviors yet at present. The intelligent long-distance electric larceny preventing checking system comprises a wireless high-voltage no-load voltage ratio tester, an RS485 communication cable, a wireless data recorder, a GPRS network, a wireless router, a hardware firewall, a communication front-end processor, a data bus, a database server, a disk array, an application server, a WEB server, a maintaining workstation, a printer, a redundancy exchanger and a GPS clock. The data transmission end of the wireless data recorder is wirelessly connected with the data transmission end of the wireless high-voltage no-load voltage ratio tester, and the data transmission end of the wireless ...

Central office access equipment power consumption testing method and system

The invention discloses a central office access equipment power consumption testing method and a central office access equipment power consumption testing system. The method comprises the following steps of: connecting testing resistors with selected resistance values between two end terminals of each terminal equipment interface of central office access equipment; determining the resistance values of the testing resistors according to terminal equipment connected with the terminal equipment interfaces in the real networking of the central office access equipment; controlling each terminal equipment interface of the central office access equipment to transmit testing signals to the connected testing resistors according to set power spectral density; and determining whether the power consumption of each component of the central office access equipment meets requirements or not by monitoring the power consumption conditions of each component in a certain time after the central office access ...

Mud flat tubular pile construction method

The invention discloses a mud flat tubular pile construction method, which relates to the technical field of tubular pile construction, and comprises the following steps: according to measured pile position coordinates, moving a mud flat tubular pile construction device provided with a buoyancy tank type crawler belt to the center of a pile position; a positioning mechanism on the pipe pile construction device for the mud flat is unfolded and inserted into a seabed, and meanwhile an automatic leveling rotation device is started; the prestressed pipe pile is transported to the position of the pipe pile construction device for the mud flat, and the hoisting mechanism is used for hoisting the prestressed pipe pile; the hoisted prestressed pipe pile is inserted into a holding and pressing mechanism, the pile end of the prestressed pipe pile is inserted into the seabed, secondary centering is conducted, and the pile body perpendicularity of the prestressed pipe pile is corrected; the holding ...

Preparation method of starch-grafted polyacrylic acid super absorbent resin

The invention relates to a preparation method of starch-grafted polyacrylic acid super absorbent resin. The preparation method of the starch-grafted polyacrylic acid super absorbent resin is characterized by comprising the following step: by taking starch and acrylic acid as raw materials, carrying out starch dextrinization, neutralization through acrylic acid, starch grafting and subsequent treatment. The starch-grafted polyacrylic acid super absorbent resin prepared by the preparation method disclosed by the invention is low in production cost, high in water absorption and high in saline solution absorption, and meanwhile has good biodegradability.

Dust remover and long distance conveying shipment equipment equipped with the same

The invention relates to a dedusting device. The dedusting device is arranged in a pipeline outlet of a pneumatic pipeline transportation device. The dedusting device comprises a cover body, an air suction device and a dedusting device. Long-distance transportation and shipping equipment comprises a feed conveying pipe and a pneumatic power device connected with the feed conveying pipe; and the output end of the feed conveying pipe is provided with the dedusting device. The dedusting device comprises a cover body, a filtering cloth bag and an air suction device; the front end of the cover body along the feed discharge direction is provided with an opening; the feed conveying pipe runs through the inside of the cover body; and the inside diameter of the opening is more than the outside diameter of the feed conveying pipe at the opening part so as to form an annular dust suction inlet between the opening and the feed conveying pipe. The dedusting device is arranged at the output end of the ...

Preparation method of superfine micropowder salt-resistive super absorbent resin

The invention relates to a preparation method of superfine micropowder salt-resistive super absorbent resin, which comprises the steps of neutralizing an alkaline aqueous solution with acrylic acid, obtaining a neutralization solution, adding superfine clay and aluminum oxide micropowder into the neutralization solution, obtaining a turbid solution after uniformly mixing, charging nitrogen into the turbid solution to drive away oxygen, adding hydrogen peroxide and unsaturated fatty acid zinc salt, obtaining a mixed solution, heating the mixed solution to 40-70 DEG C, performing thermostatic reaction completely for 6-12h, drying, grinding and sieving to form a salt-resistive super absorbent resin particle. The salt-resistive super absorbent resin prepared by the method is high in water absorptivity and good in salt resistance.

Method for preparing super absorbent resin from starch

The invention relates to a method for preparing a super absorbent resin from starch. The method comprises the following steps: firstly, mixing a product of gelatinization processing, obtained by mixing starch with water, under atmosphere protection with acrylic acid subjected to neutralizing treatment with an alkaline aqueous solution previously as the raw materials to prepare a neutralization solution, adding dry ultrafine clay to the neutralization solution and stirring evenly, adding a cross-linking agent and an initiator for a polymerization reaction to obtain hydrogel, and drying and crushing the hydrogel to obtain the super absorbent resin. The super absorbent resin from starch prepared by the method provided by the method is low in cost, simple in operating process and high in saline solution absorption.

Integrating instrument circuit of differential pressure flowmeter

The invention discloses an integrating instrument circuit of a differential pressure flowmeter. The integrating instrument circuit comprises an external power circuit, a 485 driving voltage circuit, a battery power supply circuit, a 4-20mA current flow signal processing circuit, a key circuit, a CPU chip data processing circuit, a 485 communication circuit, a temperature signal acquiring and processing circuit, a pressure signal acquiring and processing signal, a temperature, pressure, standard condition flow rate, working condition flow rate frequency signal output circuit, a concentration sensor signal input circuit, an anti-static circuit and various signal output processing circuits. With the adoption of the integrating instrument circuit of the differential pressure flowmeter, the total volume of gas is measured, and the gas concentration is corrected at the same time.

Preparation method of polyacrylate type super absorbent resin

The invention discloses a preparation method of a polyacrylate type super absorbent resin. The preparation method comprises the following steps of: mixing acrylic acid and acrylamide monomers together as the raw materials at firstly, and then adding a neutralizer, a cross-linking agent, an organic solvent and water to prepare a mixed monomer solution; mixing the mixed monomers with an initiator at a primary reaction temperature ranging from 60 to 80 DEG C, pouring the mixture in a reaction disc for polymerization to obtain a sheet polymer; and crushing and sieving the sheet polymer to obtain the polyacrylate type super absorbent resin. The polyacrylate type super absorbent resin prepared by the preparation method provided by the invention is extremely simple in production process, excellent in water absorption performance and good in salt resistance.

Real time monitoring system for hydrogenation reaction effluent cooling process

The invention belongs to the detecting system technical field, relating to a real time monitoring system of a hydrogenation reaction exudate cooling process. The system comprises the following functional modules that: a data fetch module, a data preprocess module, a data manual input module, a model modeling module, a critical characteristics index computation module, a diagnostic module and a real time display module. A user can realize all the functions of fetching data, diagnosing data, and real time displaying data by the system without adding any extra operations. The system can diagnose the specific reaction exudate system in real time effectively. The unserviceable control parameters in the varying duty operation of a specific REAC system can be displayed real time by monitoring various parameters of a reaction exudate air cooler, thereby providing the reliable working condition and various unserviceable control parameters information for site work personnel, effectively avoiding ...

Cable take -up machine

The utility model provides a cable take -up machine to the cable take -up machine who solves among the prior art can't be to the cable volume of carrying out weightometer, calculated length's problem. Cable take -up machine, include: base, supporting mechanism, setting take -up reel, weighing sensor, control mechanism and the motor on the supporting mechanism, the base setting is provided with weighing sensor in the below of supporting mechanism between base and the supporting mechanism, and weighing sensor is connected with control mechanism, and the motor is connected with the interior axis of rotation that sets up of take -up reel. Owing to being provided with weighing sensor between base and the supporting mechanism, weighing sensor is connected with control mechanism, consequently, need not to remove the take -up reel around good line and weighs on the platform scale, only need import the specification of cable on control mechanism, and control mechanism can automatically process the ...

Pneumatic transport shipment equipment with dust-removing and pressure-releasing cavity

The invention provides a pneumatic transport shipment equipment with dust-removing and pressure-releasing cavity, comprising a feed delivery pipe, a pneumatic actuator and dust removing equipment; wherein, the pneumatic actuator is connected with the feed delivery pipe, and the dust removing equipment is near to the output end of the feed delivery pipe. The dust removing equipment comprises a cover body, a filtering apparatus and a getter device; wherein, the inner hollow cavity of the cover body comprises a filtering cavity above the output end and the pressure-releasing cavity below the output end. In the shipment equipment of the invention, the lower part of the dust removing equipment is provided with the pressure-releasing cavity, and the getter device such as a draught fan, and the like, can generate effective subpressure in the limited pressure-releasing cavity; and the pressure-releasing cavity consistently keeps the subpressure effect when materials are transported, in the process ...

Self-circulation semiconductor refrigeration cooling electric power cabinet

Provided is a self-circulation semiconductor refrigeration cooling electric power cabinet which comprises an electric power cabinet and a semiconductor refrigeration sheet. The semiconductor refrigeration sheet is arranged on the top surface of the electric power cabinet. A refrigeration surface of the semiconductor refrigeration sheet is arranged in the electric power cabinet, and a heat-radiating surface of the semiconductor refrigeration sheet is arranged outside the electric power cabinet. The semiconductor refrigeration sheet is arranged on the top surface of the electric power cabinet, the refrigeration surface of the semiconductor refrigeration sheet is arranged in the electric power cabinet and the heat-radiating surface of the semiconductor refrigeration sheet is arranged outside the electric power cabinet so that the structure is minimal in space occupation. The part of the refrigeration surface of the semiconductor refrigeration sheet is provided with an inclined channel. Air ...

Super absorbent flame retardant fire extinguishing agent for storage

The invention relates to a fire extinguishing agent and in particular relates to a super absorbent flame retardant fire extinguishing agent for storage. The fire extinguishing agent is prepared from the following raw materials in parts by weight: 75-82 parts of super absorbent resin, 12-15 parts of magnesium hydroxide, 8-12 parts of aluminium hydroxide, 11-13 parts of calcium carbonate, 10-12 parts of ferrocene and 5-8 parts of chlorinated paraffin. The super absorbent flame retardant fire extinguishing agent for storage provided by the invention has the beneficial effects that aiming at different materials of packaging materials, various active ingredients are prepared, thus forming the compound fire extinguishing agent; the super absorbent resin in the fire extinguishing agent can absorb water and form a gel-like product which constrains water firmly, covers the surfaces of the packaging materials and can permeate the interiors of the inflammables of the packaging materials to isolate ...

Pollutant aerobic biological degradation breath measuring method and device

Method for preparing super absorbent resin by using montmorillonite

The invention discloses a method for preparing super absorbent resin by using montmorillonite. The method comprises the steps of preparing a neutralization solution and a montmorillonite turbid solution by using acrylic acid and montmorillonite as raw materials, adding a cross-linking agent and an initiating agent, and controlling temperature to realize a polymerization process; and drying and breaking to prepare the super absorbent resin. The super absorbent resin prepared by the method disclosed by the invention has the advantages of high water absorbing capacity, rapid water absorbing speed and high salt absorption multiplying power.

Dust remover and long distance conveying shipment equipment equipped with the same

The invention relates to a dedusting device. The dedusting device is arranged in a pipeline outlet of a pneumatic pipeline transportation device. The dedusting device comprises a cover body, an air suction device and a dedusting device. Long-distance transportation and shipping equipment comprises a feed conveying pipe and a pneumatic power device connected with the feed conveying pipe; and the output end of the feed conveying pipe is provided with the dedusting device. The dedusting device comprises a cover body, a filtering cloth bag and an air suction device; the front end of the cover body along the feed discharge direction is provided with an opening; the feed conveying pipe runs through the inside of the cover body; and the inside diameter of the opening is more than the outside diameter of the feed conveying pipe at the opening part so as to form an annular dust suction inlet between the opening and the feed conveying pipe. The dedusting device is arranged at the output end of the ...

Method for preparing super absorbent resin through reverse suspension polymerization

The invention relates to a method for preparing super absorbent resin through reverse suspension polymerization. The method comprises the following steps: firstly neutralizing acrylic acid and alkaline water solution, adding organic cyclohexane, surfactant, dispersant and pre-prepared sodium carboxymethylcellulose water solution, uniformly stirring; adding N,N'-methylene bisacrylamide and ammonium persulfate in sequence, heating in water bath to 60-75 DEG.C, reacting at constant temperature for 1-3 hours, soaking the reaction product in an organic solvent at the end of the reaction so as to remove residual monomers and other solvents, drying and sieving to obtain super absorbent resin particles with different granularities. The super absorbent resin product prepared by the invention is ellipsoid, uniform in granularity distribution, simple in after-treatment and high in water absorption.

Water swelling rubber containing super absorbent resin

The invention relates to a rubber material and in particular relates to a water swelling rubber containing a super absorbent resin. The water swelling rubber containing the super absorbent resin is prepared from the following raw materials: 20-25 parts of polyvinyl chloride, 55-60 parts of nitrile rubber, 7-11 parts of maleic anhydride grafting compatilizer, 2-4 parts of carbon black, 0.5-0.7 part of dicumyl peroxide, 13-17 parts of super absorbent resin, 1-4 parts of sulfur, 1-3 parts of stearic acid, 0.06-0.09 part of potassium peroxodisulfate, 12-15 parts of kaoline, 2-5 parts of p-phenylenediamine cross-linking agent and 3-5 parts of magnesium hydroxide. The water swelling rubber containing the super absorbent resin provided by the invention is quick in water absorption and high in rate; the preparation process is simple; the water swelling rubber containing the super absorbent resin can be used as a leakage-proof material in construction environments such as underground, warehouse ...

Temperature and pressure controllable rotary erosion experiment apparatus

The invention discloses a temperature and pressure controllable rotary erosion experiment apparatus which comprises a frequency control motor, an inner magnetic assembly, an industrial control computer, a pressure sensor, a temperature sensor, an electrochemical workstation, an upper liquid container, an outer magnetic assembly, a connecting rack, a support cover, a prefilming chamber, an observation window, a transmission center shaft, a lower liquid container, a circulating pump and a filter. The rotary erosion experiment apparatus can simulate working conditions of different temperatures, different pressures and the like in the industrial actual environment for erosion transient characteristic tests. By adopting a magnetic transmission system, the sealing effect of the experiment apparatus is ensured; the temperature, the pressure and the pH value can be simulated according to the industrial actual environment, therefore, erosion critical characteristics obtained in the tests do not ...

Super absorbent flame retardant fire extinguishing agent for inflammables

The invention relates to a fire extinguishing agent and in particular relates to a super absorbent flame retardant fire extinguishing agent for inflammables. The fire extinguishing agent is prepared from the following raw materials in parts by weight: 65-80 parts of super absorbent resin, 8-15 parts of magnesium hydroxide and 10-12 parts of potassium bicarbonate. The super absorbent flame retardant fire extinguishing agent for inflammables provided by the invention has the beneficial effects that the super absorbent resin in the fire extinguishing agent can absorb water and form a gel-like product which constrains water firmly, covers the surfaces of the inflammables and can permeate the interiors of the stacked inflammables to isolate combustion sources from the air; the super absorbent resin gains high heat capacity because of absorbing plenty of water so that the super absorbent resin can absorb plenty of heat energy of ignition points, thus reducing the temperatures of the ignition ...

Density correction type multi-parameter flowmeter and density correction method

The invention discloses a density correction type multi-parameter flowmeter and a density correction method. The flowmeter comprises an instrument shell with a middle pipeline through hole. A flow sensor fixing rack, a sensor fixing rack and a concentration sensor are mounted on the instrument shell. A flow sensor and a micro differential pressure transmitter are mounted on the flow sensor fixing rack. The measuring end of the flow sensor is located in the middle pipeline through hole of the instrument shell. A flow sensor probe is mounted on the flow sensor. A pressure sensor, a temperature sensor and a flow totalizer are mounted on the sensor fixing rack. The measuring ends of the pressure sensor, the temperature sensor and the flow totalizer are respectively located in the middle pipeline through hole of the instrument shell. The measuring end of the concentration sensor is located in the middle pipeline through hole of the instrument shell. The density correction type multi-parameter ...

Water-absorbent resin used for bandage gauze

The invention relates to a water-absorbent resin, and in particular relates to a water-absorbent resin used for bandage gauze. The water-absorbent resin is prepared by mixing the following raw materials in parts by weight: 57-64 parts of crylic acid, 24-35 parts of modified starch, 4-7 parts of acrylamide, 2-5 parts of corn starch, 2-5 parts of sodium hydroxide, 2-3 parts of potassium peroxodisulfate potassium persulfate, 3-5 parts of cellulose derivatives, 2-4 parts of glycine and 1-2 parts of ethanol. The water-absorbent resin used for bandage gauze has the characteristic of high water absorption speed, and is free of gel phenomenon on the surface after absorbing water.

Electrochemical test probe for erosion critical characteristic on-line monitoring

The invention discloses an electrochemical testing probe used for on line monitoring erosion critical characteristics. A groove is opened in the center of the thread end of a thread fixing piece and is embedded into a working electrode; the thread end of the thread fixing piece outside the groove is opened with a ring groove embedded into an assistant electrode; a round hole is opened in the ring groove and an insulation sleeve plug is embedded; a reference electrode is embedded in the insulation sleeve hole; the probe formed by the three electrodes is respectively connected with a potentiostat through wires; the potentiostat is connected with an industrial personal computer; the testing probe is screwed into the opening of pipes to be tested, the pre-corrosion working electrode end face is led to face to fluid to be tested; the industrial personal computer is used for drawing the curves of the flow rate and the corrosion current and other related curves; when the flow rate of the fluid ...

Modeling method for hydrogenation reaction effluent system failure control parameter

The invention discloses a modeling method for invalidation control parameter of hydrogenation reaction effluent system; wherein, the invalidation control parameter modeling comprises a KP value, the concentration of NH4HS, the theoretical quantity of water injection, the deposition temperature of NH4HS, the deposition temperature of NH4Cl and the mean velocity of air cooler. The modeling method is characterized in that the operation parameters of hydrogenation reaction effluent system are loaded by the DCS control system data base, the material chemical examination analysis data and the principle flow chart of hydrogenation reaction are combined, the modeling is processed according to the concrete invalidation control parameter in the running of hydrogenation reaction effluent system variable condition, and that the KP value, the concentration of NH4HS, the theoretical quantity of water injection, the deposition temperature of NH4HS, the deposition temperature of NH4Cl and the mean velocity ...

Food preservative containing water-absorbent resin

The invention relates to a preservative, and particularly relates to a food preservative containing water-absorbent resin. The food preservative comprises the following raw materials in parts by weight: 7-15 parts of phosphatidylcholine, 5-12 parts of sodium ascorbate, 1-7 parts of malic acid, 10-13 parts of succinic acid, 9-14 parts of vitamin E, 2-3 parts of calcium stearate, 5-8 parts of sodium hydrogen sulfate and 1-3 parts of water-absorbent resin. The food preservative containing the water-absorbent resin is prepared from the substances which do not harm a human body, but can sterilize, and is good in preservation effect.

Electrochemical test probe for erosion critical characteristic on-line monitoring

The invention discloses an electrochemical testing probe used for on line monitoring erosion critical characteristics. A groove is opened in the center of the thread end of a thread fixing piece and is embedded into a working electrode; the thread end of the thread fixing piece outside the groove is opened with a ring groove embedded into an assistant electrode; a round hole is opened in the ringgroove and an insulation sleeve plug is embedded; a reference electrode is embedded in the insulation sleeve hole; the probe formed by the three electrodes is respectively connected with a potentiostat through wires; the potentiostat is connected with an industrial personal computer; the testing probe is screwed into the opening of pipes to be tested, the pre-corrosion working electrode end face is led to face to fluid to be tested; the industrial personal computer is used for drawing the curves of the flow rate and the corrosion current and other related curves; when the flow rate of the fluid ...

Preparation method of biodegradable super absorbent resin

The invention discloses a preparation method of a biodegradable super absorbent resin. According to the method, acrylic acid and sodium alginate are used as raw materials; the method comprises the following steps: adding the acrylic acid into alkaline aqueous solution to neutralize, adding the sodium alginate and gelatin into the neutralization solution, uniformly stirring and then adding a cross-linking agent; heating in a water bath to 30-45 DEG C, then adding an initiator, placing in a drying box to perform polymerization reaction and drying to obtain blocky products; crushing and screening to prepare the degradable super absorbent resin. The product prepared by the method is biodegradable and has high water absorption and salt tolerance.

Temperature and pressure controllable rotary erosion experiment apparatus

The invention discloses a temperature and pressure controllable rotary erosion experiment apparatus which comprises a frequency control motor, an inner magnetic assembly, an industrial control computer, a pressure sensor, a temperature sensor, an electrochemical workstation, an upper liquid container, an outer magnetic assembly, a connecting rack, a support cover, a prefilming chamber, an observation window, a transmission center shaft, a lower liquid container, a circulating pump and a filter. The rotary erosion experiment apparatus can simulate working conditions of different temperatures, different pressures and the like in the industrial actual environment for erosion transient characteristic tests. By adopting a magnetic transmission system, the sealing effect of the experiment apparatus is ensured; the temperature, the pressure and the pH value can be simulated according to the industrial actual environment, therefore, erosion critical characteristics obtained in the tests do not ...

Method of preparing super absorbent resin by carboxyl phosphorite

The invention discloses a method of preparing super absorbent resin by carboxyl phosphorite. The method comprises the following steps: by taking acrylic acid and carboxyl phosphorite as raw materials, firstly, mixing acrylic acid with water; adding alkaline aqueous liquor into an ice-water bath to neutralize; adding carboxyl phosphorite and a crosslinking agent into the neutralizing liquor; heating to 30-45 DEG C in the presence of an atmosphere; then adding an initiator; heating to 75-90 DEG C ini the presence of the atmosphere; carrying out a constant-temperature reaction for 2-5 hours and placing the obtained product in a blowing drying oven; drying the obtained product at 60-80 DEG C until the weight is constant; crushing and sieving to obtain the super absorbent resin. The super absorbent resin prepared by the method disclosed by the invention is lower in cost and good in biodegradability.

Method for preparing super absorbent resin from coal ash

The invention relates to a method for preparing super absorbent resin from coal ash. The method comprises the following steps: (1) mixing a raw material acrylic acid with water, and adding NaOH liquor under a stirring state to prepare neutralizing liquor; (2) adding coal ash in the neutralized acrylic acid liquor to prepare a turbid liquid of acrylic acid and coal ash; (3) carrying out ultrasonic dispersion on the turbid liquid to prepare a coal ash turbid liquid with the viscosity of 30-50mpa.s; (4) placing the turbid liquid in a water bath kettle, adding N, N'-methylene diacrylic acid amide, uniformly stirring, adding potassium peroxodisulfate and carrying out polymerization reaction to prepare a grafted product of coal ash grafted acrylic acid; and (5) drying and crushing the grafted product to obtain the super absorbent resin. The super absorbent resin prepared by the method is low in production cost, and good in water absorption, strength and water retention capacity.

PRODUCTION PROCESS FOR GANGUE LOW TEMP. CEMENT AND FLUID-BED CALCINER PLANT

Method for preparing super absorbent resin

The invention discloses a method for preparing super absorbent resin. The method comprises the following steps of: taking acrylic acid as a raw material and neutralizing the raw material; adding a soluble zinc salt into the neutralized solution; performing polymerization on the mixture and spraying soluble sulphite solution into the polymerized mixture in the extrusion granulation process to serve as granulating solution; and sequentially drying, crushing and performing surface secondary cross-linking process on the mixture to obtain a final product; or the method comprises the following steps of: taking acrylic acid as a raw material; neutralizing and polymerizing the raw material; spraying soluble zinc salt solution and soluble sulphite solution into the mixture in the extrusion granulation process to serve as the granulating solution; and sequentially drying, crushing and performing surface secondary cross-linking process on the mixture to obtain the final product. The product prepared ...

Water-blocking tape with water-absorbing resin

The invention relates to a water-blocking tape for an electric cable, in particular to a water-blocking tape with water-absorbing resin. The preparing technology comprises the following steps that (1) the surface of the textile fabric is coated with epoxy resin, a base material layer is formed; (2) water-absorbing raw materials, acrylic acid, ethylene propylene rubber, mica powder, the water-absorbing resin and phthalic acid ester are heated and evenly mixed, the base material layer is coated with the materials to form a water-absorbing layer; (3) the water-absorbing layer is coated with the base material layer, and one face, coated with the epoxy resin, of the base material layer is bound with the water-absorbing layer. According to the water-blocking tape with the water-absorbing resin, water absorbing is quick, multiplying power is high, the preparing technology is simple, the water-blocking tape is used for producing the electric cable, the inner portion of the electric cable can be ...

Static state standard cubic meter calibration device and calibration method of static state standard cubic meter calibration device

The invention relates to a gas flowmeter calibration device, and discloses a static state standard cubic meter calibration device and a calibration method of the static state standard cubic meter calibration device. The static state standard cubic meter calibration device is characterized by comprising a pressure controllable static state sealing system, a signal transmission system and an automatic control system. Under the condition that the static pressure is achieved through the static state standard cubic meter calibration device, hydraulic driving is adopted for a working table frame of the pressure controllable static state sealing system, a hydraulic cylinder of the working table frame is controlled through an electromagnetic reversing valve to move upwards and downwards, a detected gas flowmeter is pressed to carry out sealing when the hydraulic cylinder moves downwards, and the pressure is released when the hydraulic cylinder moves upwards. In the signal transmission system, the ...

Method for preparing salt tolerant super absorbent resin by bentonite

The invention relates to a method for preparing a salt tolerant super absorbent resin by bentonite. The method adopts acrylic acid, starch and bentonite as raw materials; firstly, the acrylic acid is neutralized by potassium hydroxide water solution under the condition of an ice-water bath to obtain neutralized liquid; starch water solution mixed beforehand and dry bentonite are added in the neutralized liquid, and are evenly stirred to obtain mixed liquid; nitrogen is introduced in the mixed liquid, and is heated for 0.5-4 minutes in a 30-45 DEG C water bath; then the mixed liquid is put in an ultraviolet polymerization reaction device for finishing reaction after being radiated for 20-80 minutes at 50-70 DEG C; a reaction product is dried in a 80-160 DEG C constant-temperature vacuum drying box, and is smashed to obtain the composite salt tolerant super absorbent resin. The composite salt tolerant super absorbent resin prepared by the invention has high strength, water absorption and ...

Path planning method and system based on unmanned aerial vehicle surveying and mapping, medium and equipment

The invention relates to a path planning method and system based on unmanned aerial vehicle surveying and mapping, a medium and equipment, and the method comprises the steps: receiving a path planning request sent by a vehicle-mounted terminal of a vehicle, and the path planning request comprises vehicle information; according to the path planning request, a mountain road image shot by an unmanned aerial vehicle is obtained, and the mountain road image comprises a plurality of mountain roads; analyzing the mountain road image and generating a mountain road map; according to the vehicle information, determining a mountain road set satisfying vehicle passing in the mountain road map; and screening out an optimal path from the mountain road set, and sending the optimal path to a vehicle-mounted terminal. According to the invention, people can know the road condition of each mountain road in advance, and it is ensured that the vehicle can select a relatively appropriate path for driving.

Loop-type multi-phase flow erosion test device

Method for preparing super absorbent resin

The invention discloses a method for preparing super absorbent resin. The method comprises the following steps of: taking acrylic acid as a raw material and neutralizing the raw material; adding a soluble zinc salt into the neutralized solution; performing polymerization on the mixture and spraying soluble sulphite solution into the polymerized mixture in the extrusion granulation process to serve as granulating solution; and sequentially drying, crushing and performing surface secondary cross-linking process on the mixture to obtain a final product; or the method comprises the following steps of: taking acrylic acid as a raw material; neutralizing and polymerizing the raw material; spraying soluble zinc salt solution and soluble sulphite solution into the mixture in the extrusion granulation process to serve as the granulating solution; and sequentially drying, crushing and performing surface secondary cross-linking process on the mixture to obtain the final product. The product prepared ...

Method for increasing survival rate of cast-in-place pile pre-buried sounding pipe and sounding system of cast-in-place pile

The invention relates to the technical field of sounding pipes, in particular to a method for increasing the survival rate of a cast-in-place pile pre-buried sounding pipe and a sounding system of a cast-in-place pile in order to solve the technical problem that the pre-burying survival rate of a cast-in-place pile sounding pipe in the prior art is low. The method comprises the steps that firstly, the sounding pipe is filled with clean water; secondly, a PE pipe is placed in the sounding pipe filled with the clean water; finally, concrete is poured around the sounding pipe, and the PE pipe is taken out after initial setting of concrete and before final setting of the concrete. The sounding pipe is prevented from being damaged in the concrete pouring process, and the pre-burying survival rate of the cast-in-place pile sounding pipe is remarkably increased.

Preparation method of high strength super absorbent resin

The invention discloses a preparation method of high strength super absorbent resin. The method comprises the following steps: mixing acrylic acid and acrylamide which are taken as raw materials to obtain a mixture; adding a dispersant and alkali aqueous liquor to neutralize so as to obtain a neutralized liquid; and adding vinyl acetate and an organic solvent into the neutralized liquid, uniformly mixing, then adding an initiator, introducing nitrogen for 1-4 minutes, heating to 30-45 DEG C by a water bath, carrying out reaction for 60-120 minutes at constant temperature and heating to 70-85 DEG C, carrying out reaction for 40-80 minutes at constant temperature, and filtering and drying to obtain the high strength super absorbent resin after reaction. The high strength super absorbent resin prepared by the preparation method disclosed by the invention is good in compressive strength and high in water absorption.