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Roasting filler prepared by recycling carbon product production waste and method

A technology for carbon products and waste production, applied in the field of roasting fillers, can solve the problems of investing in environmental protection purification facilities, hazardous waste, high energy consumption, etc., and achieve the effects of high reuse value, lower production costs, and easy access.

Pending Publication Date: 2021-11-30
上海领津环境技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the waste coke powder is discarded, it is easy to be judged as hazardous waste because of the tar condensed by the adsorption of asphalt fumes. However, if the high-temperature thermal destruction method is used to eliminate the adsorbed organic matter, it needs to be invested in environmental protection purification facilities and higher cost. energy consumption

Method used

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  • Roasting filler prepared by recycling carbon product production waste and method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The fine metallurgical coke powder separated from the filling material collected by the dust collecting crane above the roasting furnace in the roasting workshop is transported to the adsorption purification system by pneumatic conveying to absorb asphalt smoke, and the waste coke powder is separated by a bag filter After testing, the mass content of asphalt smoke solidification in this batch of waste coke powder is 25%. After the waste coke powder is discharged from the adsorption purification system, it is transported to the preparation powder bin of the regeneration preparation workshop by a pneumatic conveying system. Take 200kg of waste coke powder, add 5.2kg of an environmentally friendly adhesive, mix and stir for about 20 minutes, and wait until it is uniform to obtain Mix the dry powder, inject about 40L of process water evenly into it, stir and roll it with a mechanical wheel, so that the mixture of waste coke powder and environmental protection adhesive and pr...

Embodiment 2

[0033] The fine metallurgical coke powder separated from the filling material collected by the dust collecting crane above the roasting furnace in the roasting workshop is transported to the adsorption purification system by pneumatic conveying to absorb asphalt smoke, and the waste coke powder is separated by a bag filter After testing, the mass content of asphalt smoke solidification in this batch of waste coke powder was 13%. After the waste coke powder is discharged from the adsorption purification system, it is transported to the preparation powder silo of the regeneration preparation workshop by a pneumatic conveying system. Take 200kg of waste coke powder, add 5kg of environmentally friendly adhesive, mix and stir for about 20 minutes, and mix after being uniform For dry powder, about 40L of process water is evenly injected into it, stirred and rolled by a mechanical wheel, so that the mixture of waste coke powder and environmental protection adhesive and process water m...

Embodiment 3

[0036] The fine metallurgical coke powder separated from the filling material collected by the dust collecting crane above the roasting furnace in the roasting workshop is transported to the adsorption purification system by pneumatic conveying to absorb asphalt smoke, and the waste coke powder is separated by a bag filter After testing, the mass content of asphalt smoke solidification in this batch of waste coke powder was 50%. After the waste coke powder is discharged from the adsorption purification system, it is transported to the preparation powder silo of the regeneration preparation workshop by a pneumatic conveying system. Take 200kg of waste coke powder, add 6kg of environmentally friendly adhesive, mix and stir for about 20 minutes, and mix after being uniform For dry powder, about 40L of process water is evenly injected into it, stirred and rolled by a mechanical wheel, so that the mixture of waste coke powder and environmental protection adhesive and process water m...

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Abstract

The invention discloses a method for preparing a roasting filler by recycling carbon product production waste, and relates to the technical field of carbon product production, the preparation method comprises the following steps: collecting residual fine coke powder of the filler in a roasting furnace after the carbon product is discharged; the residual fine coke powder is used for adsorbing asphalt smoke generated in the prebaking production process of the carbon product, and waste coke powder is obtained; mixing the broken material waste coke powder with an environment-friendly adhesive and water to obtain a wet material; and processing and molding the wet material mold by using a mold, and drying to obtain the product. The recycled roasting filler is prepared from the carbon product production waste, the process is simple, the cost is low, and the problem of solid waste treatment in carbon product production and after environment-friendly purification is fundamentally solved.

Description

technical field [0001] The invention relates to the technical field of carbon product production, in particular to a roasting filler and a method prepared by recycling carbon product production waste. Background technique [0002] Roasting is a process of anaerobic high-temperature treatment of raw carbon blocks to coke the coal tar pitch in the raw carbon products and closely connect the aggregates into a whole. The filler is used to cover the green body and fill the gap during firing to prevent the green body from oxidation and deformation. The performance requirements of fillers mainly include: good high temperature stability, small deformation at high temperature, thermal conductivity, air permeability, particle size (mostly 6-8mm, less fine powder), low moisture content (<1%) and pollution-free materials, cost inferior. [0003] The bulk particles of the filler are extruded by external force and burnt at high temperature after being loaded into the furnace, and a c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66C04B35/622
CPCC04B35/66C04B35/62204C04B2235/9607
Inventor 靳以学虞军
Owner 上海领津环境技术有限公司
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