Calcium carbide crushing method

A crushing method and calcium carbide technology, applied in grain processing and other directions, can solve the problem of inability to crush calcium carbide grains below 3mm, and achieve the effect of easy adjustment and control, simple principle, and avoidance of equipment damage.

Inactive Publication Date: 2015-04-08
SUINING HUANENG MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the defect that the particle size of calcium carbide cannot be crushed below 3 mm in the prior art, the present invention provides a calcium carbide crushing method, which can crush the particle size of calcium carbide to below 3 mm, and provide calcium carbide with a finer particle size for downstream production processes , which is conducive to the rapid progress of the downstream production process

Method used

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  • Calcium carbide crushing method
  • Calcium carbide crushing method
  • Calcium carbide crushing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A. Material selection

[0044] Choose 25mm calcium carbide;

[0045] B. In addition to impurities

[0046] Use iron removal equipment to remove iron impurities contained in calcium carbide, and the content of iron impurities after removal is 0.8%;

[0047] C, broken

[0048] Use a toothed roller crusher to crush the removed calcium carbide. The diameter of the crushing roller is 1400mm, and the length of the crushing roller is 500mm. One of the crushing rollers rotates at 40r / min, and the other is 42r / min. The gap between the crushing rollers is 8mm, and the flow rate of calcium carbide passing between the (two) crushing rollers is 100t / h.

[0049] The crushing roller needs to be lubricated during the crushing. When lubricating, the oil should be injected once every hour, and the oil injection time is 6~10 minutes. The lubricating oil is extreme pressure lithium grease, and the consistency of the lubricating oil is level 2. The bearing temperature is lower than 45℃, and the bear...

Embodiment 2

[0052] A. Material selection

[0053] Select calcium carbide with a particle size of 20mm;

[0054] B. In addition to impurities

[0055] Use iron removal equipment to remove iron impurities contained in calcium carbide, and the content of iron impurities after removal is 0.7%;

[0056] C, broken

[0057] Use a toothed roller crusher to crush the removed calcium carbide. The diameter of the crushing roller is 1100mm, and the length of the crushing roller is 400mm. One of the crushing rollers rotates at 45r / min and the other is 38r / min. The gap between the crushing rollers is 18mm, and the flow rate of calcium carbide passing between the crushing rollers is 120t / h.

[0058] The crushing roller needs to be lubricated during the crushing. When lubricating, the oil should be injected once every hour, and the oil injection time is 6~10 minutes. The lubricating oil is extreme pressure lithium grease, and the consistency of the lubricating oil is level 2. The bearing temperature is lower than...

Embodiment 3

[0061] A. Material selection

[0062] Choose 15mm calcium carbide;

[0063] B. In addition to impurities

[0064] Use iron removal equipment to remove iron impurities contained in calcium carbide, and the iron impurities content after removal is 0.6%;

[0065] C, broken

[0066] Use a toothed roller crusher to crush the removed calcium carbide. The diameter of the crushing roller is 1200mm, and the length of the crushing roller is 350mm. One of the crushing rollers is rotating at 46r / min, and the other is at 44r / min. The gap between the crushing rolls is 20mm, and the flow rate of calcium carbide passing between the crushing rolls is 150 t / h.

[0067] The crushing roller needs to be lubricated during the crushing. When lubricating, the oil should be injected once every hour, and the oil injection time is 6~10 minutes. The lubricating oil is extreme pressure lithium grease, and the consistency of the lubricating oil is level 2. The bearing temperature is lower than 45℃, and the bearing ...

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Abstract

The invention relates to a calcium carbide crushing method. The method includes: A. material selection: selecting calcium carbide with a particle size of less than or equal to 30mm and a moisture content of less than or equal to 3%; B. impurity removal: removing iron impurities contained in the calcium carbide by iron removal equipment, with the iron impurity content being not greater than 1% after impurity removal; and C. crushing: crushing the impurity removed calcium carbide with a toothed roll crusher. The diameter of crushing rolls is 1000-1400mm, the length of the crushing rolls is 300-500mm, the rotation speed of the crushing rolls is 38-48r / min, the gap between the two rolls is 8-20mm, and the flow of calcium carbide passing through the two crushing rolls is 90-150 t / h. The method provided by the invention can crush calcium carbide to a particle size of less than 3mm, and provides calcium carbide with finer granularity to the downstream production process, thus being beneficial to fast proceeding of the downstream production process.

Description

Technical field [0001] The invention relates to a calcium carbide production process, in particular to a crushing method for crushing a large piece of calcium carbide into small pieces of calcium carbide. Background technique [0002] The chemical name of calcium carbide is calcium carbide and the molecular formula is CaC 2 It is the basic raw material of organic synthetic chemical industry. Using calcium carbide as raw material can synthesize a series of organic compounds to provide raw materials for industry, agriculture and medicine. The main component of industrial calcium carbide is calcium carbide, and the rest are free calcium oxide, carbon and compounds of silicon, magnesium, iron, aluminum and a small amount of phosphide and sulfide. The purity of industrial calcium carbide is about 70%-80%, impurity CaO accounts for about 24%, and carbon, silicon, iron, calcium phosphide and calcium sulfide account for about 6%. The newly created section is shiny, and the appearance is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C4/02B02C4/32B02C4/28
CPCB02C4/08B02C4/28B02C4/32B02C4/42
Inventor 邹功全
Owner SUINING HUANENG MACHINERY
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