Semi-autogenous grinding hard rock sorting and waste throwing device and method

The invention provides a semi-autogenous grinding hard rock sorting and waste throwing device and method. The semi-autogenous grinding hard rock sorting and waste throwing device comprises a semi-autogenous grinding machine, a vibrating screen, an intelligent sorting machine and a hard rock crusher. A discharge hole of the semi-autogenous mill is formed above the vibrating screen; an ore grinding grading system is arranged below the vibrating screen, a hard rock discharging end above the vibrating screen is connected with a feeding port of an intelligent sorting machine through a first material conveying device, and a high-grade hard rock outlet is connected with a feeding port of a hard rock crusher through a second material conveying device; the low-grade hard rock outlet is connected with the waste rock conveying device; and a discharge port of the hard rock crusher is connected with a feed port of the semi-autogenous mill through a third material conveying device. By means of the method ...

Method for determining leaching property of coarse-grained wide-grade gold-bearing ore

The invention relates to a method for measuring the leaching property of coarse-grained wide-grade gold-bearing ore, which comprises the following steps: screening the coarse-grained wide-grade gold-bearing ore into a plurality of narrow-grade materials, cyaniding the finest-grade material by adopting mechanical stirring, cyaniding the other-grade materials by adopting a percolation column, and carrying out filtration on the obtained cyaniding solution to obtain a coarse-grained wide-grade gold-bearing ore solution; and each grade of cyanidation tailings is independently crushed for test analysis or combined crushing for test of gold grade. The defect that the measurement result is inaccurate due to the fact that wrapping gold is exposed due to unnecessary crushing of coarse particle materials is overcome, the method is simple, operation is convenient, the measurement result is accurate and reliable, and guiding of dump leaching tests and technical evaluation is better facilitated.

METHYL ALCOHOL SYNTHESIZING METHOD

The present invention relates to a method of synthesizing methyl alcohal. It is that in the acetonitrile or ethanol-aqueous solution the organic polymer monomer, transition metal compound or complex are contained, and after those are passed through electrochemical or chemical reaction, CO and H2 are introduced, so that the methyl alcohol can be synthesized.

Bidirectional baking gun for launder baking

The bidirectional baking gun comprises a main body support, two sets of idler wheels connected through a support are arranged at the bottom of the main body support, the distance between the two idler wheels in a single set of idler wheels is matched with the width of a launder, and the outer walls of the idler wheels abut against the inner wall of the upper end of the launder; a two-way fire spraying pipe is arranged between the two sets of idler wheels, and two fire spraying heads of the two-way fire spraying pipe are symmetrically distributed and right face the inner wall of the launder. The bidirectional flaming pipe is provided with a combustion-supporting device pipeline and a fuel gas pipeline, and the combustion-supporting device pipeline and the fuel gas pipeline control the gas inflow through controllable valves. The whole device adopts a modular design, when the two-way fire spraying pipe works, flames cannot move, other positions of the launder can be effectively protected from ...

Woody dyeing finger skateboard or process for manufacturing palm skateboard

The invention relates to a process a woody dyeing finger skateboard or a process for manufacturing a palm skateboard. The process comprises the following steps of: (a) steaming log in water at the normal pressure to soften and degrease; (b) rotatably cutting the log to obtain wood shavings, wherein the wood shaving thickness is between 0.3 and 2.0 mm; (c) cutting the wood shavings into square slices, placing the slices on a heat source to bake for 2 to 5 minutes at the temperature of between 110 and 130 DEC C, and cooling the slices to the normal temperature in air; (d) placing the square slices into a closed container of a pure water dye solution, applying inflation pressure, and soaking for 2 to 6 hours; (e) gluing 2 to 6 dyed square slices and overlapping the 2 to 6 dyed square slices on a special-shaped die for hot-press gluing, wherein the applied pressure is between 8 and 12 ton/m<2>, the temperature is between 90 and 110 DEG C and the time is between 2 and 6 minutes; (f) cutting ...

Efficient ore grinding and sorting method and system

The invention discloses an efficient ore grinding and sorting method and system. The method comprises the following steps: carrying out coarse crushing on raw ore by adopting a coarse crushing machine, carrying out intermediate crushing by adopting an intermediate crushing machine, screening, and returning oversize products for intermediate crushing; feeding the undersize product to a high-pressure roller mill for high-pressure roller milling and screening, and returning the oversize product to the high-pressure roller mill; a coarse grain flotation system is adopted for conducting coarse grain flotation operation on undersize products obtained after high-pressure roller grinding and screening, and coarse grain flotation concentrate and tailings are obtained; carrying out ore grinding and grading treatment on tailings obtained by the coarse grain flotation operation by adopting an ore grinding and grading system; and a fine particle flotation system is adopted for conducting fine particle ...

Easily-observed slagging-off rake for aluminum alloy smelting

The invention discloses an easy-to-observe slagging-off rake for aluminum alloy smelting, which comprises a panel, a reinforcing plate is arranged on the back of the panel, the panel is sequentially provided with a first area, a second area and a third area from top to bottom, and the transverse lengths of the first area, the second area and the third area are gradually increased; an arc-shaped indication edge is arranged at the edge of the second area, extends to two sides from top to bottom, and is used for assisting in judging the depth of the slagging-off rake in the molten aluminum. Compared with an existing slagging-off rake, the area of the device is smaller, and the weight of the rake plate is lighter, so that slagging-off operation is more flexible, and a forklift driver can conveniently use the device. In addition, in the using process, the depth condition of the slagging-off rake in the aluminum alloy solution can be known in real time according to the indication edge at the ...

Platinum-palladium ore beneficiation method and system

The invention discloses a platinum-palladium ore beneficiation method and system. The method comprises the following steps: carrying out coarse crushing and intermediate crushing on raw ore to obtain an undersize product of which the particle size is below 20-30mm; a high-pressure roller mill is adopted for carrying out high-pressure roller milling superfine grinding on the undersize product, air classification is carried out, a fine-fraction product with the-0.074 mm fraction content being 40%-50% is obtained, and other coarse-fraction products are returned to the high-pressure roller mill for high-pressure roller milling superfine grinding; performing direct flotation on the fine-fraction product obtained by high-pressure roller grinding ultrafine crushing and grading to obtain final platinum-palladium concentrate and final flotation tailings; wherein the flotation process of first-stage flotation, second-stage ball milling and second-stage flotation is adopted for flotation. The method ...

Balanced roller carrier and roller transportation system

The embodiment of the invention discloses a balanced type roller carrier and a roller transportation system, and relates to the field of workpiece auxiliary positioning devices.The balanced type roller carrier comprises a base and two roller supporting components, a containing area used for containing workpieces is formed between the two roller supporting components, and each roller supporting component comprises a connecting frame, a rotation driving structure and a roller supporting assembly; the driving structure is used for driving the connecting frame to rotate so as to change the size of the placing area; the number of the roller supporting assemblies is at least two, each roller supporting assembly comprises a supporting frame, a roller and a limiting assembly, and one end of each supporting frame is rotationally connected to the connecting frame; at least two rolling wheels are rotationally arranged in the length direction of the supporting frame at intervals, and the peripheral ...

Aircraft alarm logic design and simulation system and design and simulation method

The invention provides an aircraft alarm logic design and simulation system and a design and simulation method, and the system is a unit alarm design and development system and is used for the definition and management of alarm logic design and verification of an alarm system. The unit alarm simulation environment is used for simulating the unit alarm environment and establishing a corresponding simulation model; and the alarm library development system is used for linking and adapting the unit alarm simulation environment to the unit alarm design development system. The invention constructs a method and an implementation system for functions of alarm specification definition, alarm logic simulation, alarm information standardization, alarm information display and alarm information verification based on the whole flight stage. According to the method, based on the whole flight stage, comprehensive coverage of unit alarm information from logic design to simulation is achieved, aircraft alarm ...

Method for electrochemical synthesizing methyl alcohol