Calcium carbide powder forming equipment and process for machining calcium carbide powder into calcium carbide balls or blocks

A molding equipment, calcium carbide powder technology, applied in material molding presses, manufacturing tools, presses, etc., can solve the problems of excessive calcium carbide powder dust, low efficiency, difficult work for workers, etc. The effect of rolling damage

Inactive Publication Date: 2014-12-24
亿绿兰德(北京)技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] First, the calcium carbide powder is too dusty and floats in the air to react with moisture, which makes it particularly difficult for workers to work, the work is difficult, and the efficiency is low;
[0004] Second, the contact surface area of ​​calcium carbide powder and air is large, and it is too late to collect most of the calcium carbide powder and the moisture in the air has reacted, reducing the gas generation of calcium carbide powder;
[0005] Third, calcium carbide powder is put into the reaction tank after recycling, because the contact area is large and the reaction speed is too fast, it is easy to cause danger;
[0006] Fourth, the recycling of calcium carbide powder requires explosion-proof settings
Its processing cost is high, 50 yuan / ton

Method used

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  • Calcium carbide powder forming equipment and process for machining calcium carbide powder into calcium carbide balls or blocks

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0042] Calcium carbide powder, calcium carbonate, talcum powder, polyethylene acetate emulsion and borax are proportioned by weight percentage: calcium carbide powder: 100; calcium carbonate: 10; talcum powder: 5; polyethylene acetate emulsion: 2; borax: 1.

[0043] The generation time of calcium carbide powder in this embodiment is 12h-36h, and the static pressure provided by the hydraulic system is 150-300 tons;

[0044] generation time Hydrostatic pressure Gas output L / kg Compression KN Drop strength 12 150 121.75 40 Not broken, powder-free 24 220 115.67 41 not broken 36 300 108.11 39 not broken 12 220 122.56 45 Not broken, powder-free 24 300 115.99 44 not broken 36 150 98.06 36 broken into small pieces 12 300 124.89 52 Not broken, powder-free 24 150 112.91 40 not broken 36 220 122.87 38 Finely crushed

example 2

[0046] Calcium carbide powder, calcium carbonate, talcum powder, polyethylene acetate emulsion and borax are proportioned by weight percentage: calcium carbide powder: 100; calcium carbonate: 15; talcum powder: 15; polyethylene acetate emulsion: 3; borax: 1.5.

[0047] In this embodiment, the generation time of calcium carbide powder is 12h-36h, and the static pressure provided by the hydraulic system is 150-300 tons;

[0048] generation time Hydrostatic pressure Gas output L / kg Compression KN Drop strength 12 150 122.15 41 Not broken, powder-free 24 220 116.17 42 not broken 36 300 108.91 40 not broken 12 220 123.53 45.5 Not broken, powder-free 24 300 116.11 45 not broken 36 150 98.96 37 broken into small pieces 12 300 124.90 53 Not broken, powder-free 24 150 113.12 42 not broken 36 220 122.17 39 Finely crushed

example 3

[0050] Calcium carbide powder, talcum powder, polyethylene acetate emulsion and borax are proportioned by weight percentage: calcium carbide powder: 100; calcium carbonate: 30; talcum powder: 15; polyethylene acetate emulsion: 5; borax: 2.

[0051] In this embodiment, the generation time of calcium carbide powder is 12h-36h, and the static pressure provided by the hydraulic system is 150-300 tons;

[0052] generation time Hydrostatic pressure Gas output L / kg Compression KN Drop strength 12 150 122.98 42 Not broken, powder-free 24 220 116.76 43 not broken 36 300 109.00 41 not broken 12 220 123.87 46 Not broken, powder-free 24 300 116.66 46 not broken 36 150 99.01 38 broken into small pieces 12 300 125.00 54 Not broken, powder-free 24 150 113.89 43 not broken 36 220 122.77 41 Finely crushed

[0053] The above data shows that through high pressure (usually above 200), the compac...

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PUM

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Abstract

The invention discloses calcium carbide powder forming equipment and a process for machining calcium carbide powder into calcium carbide balls or blocks. The equipment comprises a taper hopper. A pair of extrusion dies is disposed below the taper hopper. The extrusion dies are driven by power equipment to rotate along opposite directions and extrude each other. The lower-end outlet of the taper hopper faces directly to the extruding part of the two extrusion dies. A plurality of female dies are disposed on the outer surface of each extrusion die. The two extrusion dies are mounted in the cavity, filled with nitrogen, of a protective shell. Collected calcium carbide powder and mixed materials are mixed and then fed into the taper hopper, and the calcium carbide powder mixture enters the extrusion dies and is extruded by the female dies of the two extrusion dies to form the calcium carbide balls or blocks. By the calcium carbide powder forming equipment, the calcium carbide balls or blocks can be manufactured safely, calcium carbide powder dust flying is inhibited, the manufactured calcium carbide balls or blocks can be reused in acetylene generating kettles, even reaction speed and high gas generating quantity, and economical benefits are increased.

Description

technical field [0001] The invention relates to calcium carbide powder recovery equipment and technology, in particular to a calcium carbide powder forming equipment and a process for processing calcium carbide powder into calcium carbide balls or blocks. Background technique [0002] In 2012, the domestic production of PVC by the calcium carbide method reached 9.81 million tons, and the consumption of calcium carbide was 14.22 million tons. A large amount of calcium carbide powder will be produced during the process of crushing calcium carbide and transporting calcium carbide fragments by belt, about 180,000-250,000 tons per year. Calcium carbide powder can continue to generate gas and produce usable acetylene gas, but the recovery and reuse of calcium carbide powder has the following problems: [0003] First, the calcium carbide powder is too dusty and floats in the air to react with moisture, which makes it particularly difficult for workers to work, the work is difficult...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B30B11/22B30B11/18B30B15/30B30B15/00B30B15/32
Inventor 周玉生刘珊刘建辉周明吉郭娟丽
Owner 亿绿兰德(北京)技术有限公司
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