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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-coke, to provide a new special system for preparing semi-coke molding balls for calcium carbide and to use the special system Method for preparing semi-coke molding balls for calcium carbide

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

Embodiment 1

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

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

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

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

[0051] Taking semi-coke as a benchmark, weigh 1kg of semi-coke powder, 1.5kg of quicklime powder, and 75 grams of asphalt powder, and first mix the quicklime powder and asphalt powder with the first mixing device (Eirich R02 mixer) for 5 minutes. Obtain the mixture; mix the mixture of 400 ℃ semi-coke, pitch and quicklime in the second mixing device (Eirich R02 mixer), and the mixing time is 3 minutes to obtain the final mixture; the final mixture T...

Embodiment 2

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

[0054] 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°C;

[0056] Based on the semi-coke, weigh 1kg of semi-coke powder, 1.5kg of quicklime powder, and 125 grams of asphalt powder, and first mix the quicklime powder and asphalt powder with the first mixing device (EIRICH R02 mixer) for 5 minutes Obtain the mixture, then mix the mixture of 400°C semi-coke, pitch and quicklime in the second mixing device (Ai Lixu R02 mixer), and the mixing time is 5 minutes to obtain the final mixture; the final mixture The material is quickly formed by a pair...

Embodiment 3

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

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

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

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

[0062] Taking semi-coke as a benchmark, weigh 1kg of semi-coke powder, 1.5kg of quicklime powder, and 50 grams of asphalt powder, and first mix the quicklime powder and asphalt powder with the first mixing device (Eirich R02 mixer) for 5 minutes. Obtain the mixed material; mix the mixture of 500 ℃ semi-coke, pitch and quicklime in the second mixing device (Ai Lixu R02 mixer), and the mixing time is 5 minutes to obtain the final mixed material; the...

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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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