Special system and method for preparing pellets for calcium carbide semi-coke forming

A special system, semi-coke technology, applied in the field of preparation of semi-coke molding balls for calcium carbide, can solve the problems of high cost, heavy pollution, complex process, etc., achieve low molding cost, reduce mixing difficulty, and simplify the process.

Pending Publication Date: 2017-03-15
SHENWU ENVIRONMENTAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to overcome the defects of high cost, complex process, and large pollution in the existing preparation and molding of semi

Method used

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  • Special system and method for preparing pellets for calcium carbide semi-coke forming
  • Special system and method for preparing pellets for calcium carbide semi-coke forming

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0046] Example 1

[0047] Crush the semi-coke in the semi-coke crushing device to obtain semi-coke powder; crush the quicklime in the quicklime crushing device to obtain quicklime powder; crush the solid asphalt in the solid asphalt crushing device to obtain asphalt powder;

[0048] Main features of semi-coke: fixed carbon content of dry basis 79.64%, moisture content 3.21%, particle size ≤4mm;

[0049] Binder: medium temperature asphalt powder, particle size≤1mm, softening point 109℃;

[0050] Quicklime powder: particle size≤2mm;

[0051] Based on semi-coke, weigh 1kg semi-coke powder, 1.5kg quicklime powder, and 75g asphalt powder, first mix the quicklime powder and asphalt powder with the first mixing device (Erich R02 mixer) for 5 minutes, Obtain the mixture; mix the mixture of 400℃ semi-coke, asphalt and quicklime in the second mixing device (Erich R02 mixer), the mixing time is 3 minutes, to obtain the final mixture; the final mixture The material is quickly formed by a roller b...

Example Embodiment

[0052] Example 2

[0053] Crush the semi-coke in the semi-coke crushing device to obtain semi-coke powder; crush the quicklime in the quicklime crushing device to obtain quicklime powder; crush the solid asphalt in the solid asphalt crushing device to obtain asphalt powder;

[0054] The main characteristics of semi-coke: dry base fixed carbon content 79.64%, moisture content 3.21%, particle size 4mm and below;

[0055] Binder: medium temperature asphalt powder, particle size below 1mm, softening point 109℃;

[0056] Based on semi-coke, weigh 1kg semi-coke powder, 1.5kg quicklime powder, 125g asphalt powder, and mix the quicklime powder and asphalt powder with the first mixing device (Erich R02 Mixer) for 5 minutes The mixture is obtained, and then the mixture of 400℃ semi-coke, asphalt and quicklime is mixed in the second mixing device (Erich R02 mixer) for 5 minutes to obtain the final mixture; the final mixture The material is quickly formed by a roller ball press. The obtained mo...

Example Embodiment

[0057] Example 3

[0058] Crush the semi-coke in the semi-coke crushing device to obtain semi-coke powder; crush the quicklime in the quicklime crushing device to obtain quicklime powder; crush the solid asphalt in the solid asphalt crushing device to obtain asphalt powder;

[0059] Main features of semi-coke: fixed carbon content of dry basis 79.64%, moisture content 3.21%, particle size ≤4mm;

[0060] Binder: medium temperature asphalt powder, particle size≤1mm, softening point 109℃;

[0061] Quicklime powder: particle size≤2mm;

[0062] Based on semi-coke, weigh 1kg semi-coke powder, 1.5kg quicklime powder, and 50g asphalt powder. First mix the quicklime powder and asphalt powder using the first mixing device (Erich R02 Mixer) for 5 minutes. Obtain the mixture; mix the mixture of semi-coke, asphalt and quicklime at 500°C in the second mixing device (Erich R02 mixer) for 5 minutes to obtain the final mixture; combine the final mixture The material is quickly formed by a roller ball ...

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Abstract

The invention discloses a special system for preparing pellets for calcium carbide semi-coke forming. The system comprises a quick lime crushing device, a solid asphalt crushing device, a quick pyrolytic device, a first mixing device, a second mixing device and a pelletizing device. The invention also discloses a method for preparing pellets for calcium carbide semi-coke forming by the special system. The method includes crushing quick lime and solid asphalt respectively in the crushing devices; mixing the crushed quick lime and solid asphalt in the first mixing device to obtain a mixture; evenly mixing semi-coke powder from the quick pyrolytic device with the mixture entering the second mixing device to obtain a mixed material; pelletizing the mixed material in the pelletizing device. The special system and the method have the advantages that the problems of difficulty in forming binder selection, complicated forming technologies, high forming cost and requirements on subsequent drying during calcium carbide semi-coke forming are solved, and the special system and the method are high in technological forming rate, stable in forming operation, high in formed pellet strength and low in forming cost.

Description

technical field [0001] The invention relates to a special system and method for preparing semi-coke molding balls for calcium carbide, and belongs to the field of preparation of semi-coke molding balls for calcium carbide. Background technique [0002] Semi-coke is a product of weakly caking or non-caking coal with high volatile content as a raw material, which is produced by carbonization at medium and low temperatures to remove tar substances and most of the volatile content in coal. As a new type of carbon material, it is The characteristics of high fixed carbon, high resistivity, low ash content, low sulfur content, low phosphorus content and low price are gradually being promoted and applied in the production of calcium carbide, ferroalloy and other products to replace expensive metallurgical coke, semi-coke As an important raw material for the metallurgical industry. [0003] Calcium carbide is produced from quicklime and carbon through complex physical and chemical c...

Claims

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Application Information

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IPC IPC(8): C10L5/16C10L5/36
CPCC10L5/16C10L5/36
Inventor 刘涛高建薛逊邓鑫祁娟吴道洪
Owner SHENWU ENVIRONMENTAL TECH CO LTD
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