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A method for co-processing organic hazardous waste in cement kilns

A co-processing, cement kiln technology, applied in organic chemistry, cement production, combustion methods, etc., can solve problems such as insufficient processing capacity, too many organic components, and inability to process

Active Publication Date: 2022-04-26
浙江红狮环保股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The incineration disposal technology is suitable for hazardous wastes that are not suitable for recycling its useful components, have a lot of organic components, and have a certain calorific value after pretreatment. Industrial kilns co-dispose hazardous wastes, which is to use the existing kilns of industrial enterprises to replace hazardous wastes. The method of co-processing fuel or raw materials, but there are still many deficiencies in this technology in our country. Compared with the 17%-30% replacement rate of raw materials and fuels in Europe and the United States, the replacement rate of raw materials and fuels in my country is still low, resulting in far less processing capacity. Meet the demand, so many hazardous wastes with complex components cannot be treated

Method used

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  • A method for co-processing organic hazardous waste in cement kilns
  • A method for co-processing organic hazardous waste in cement kilns
  • A method for co-processing organic hazardous waste in cement kilns

Examples

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Embodiment 1

[0028] A method for co-processing organic hazardous waste in a cement kiln, the main scheme of which is:

[0029] 1. Organic hazardous waste pretreatment. Firstly, the organic hazardous waste is preliminarily dewatered, and then filtered out to separate the liquid organic hazardous waste from the solid organic hazardous waste. The liquid organic hazardous waste enters the liquid organic hazardous waste storage tank; the solid organic hazardous waste The waste enters the mixer, and is mixed with the auxiliary fuel according to the addition amount of 25% according to the mass percentage content;

[0030] 2. Incineration of organic hazardous waste. The uniformly mixed solid organic hazardous waste is sent to the solid organic hazardous waste disposal furnace through the conveying equipment for incineration at a temperature of 1000 ° C. The separated liquid organic hazardous waste is added to the mass percentage content 0.5% stabilizer, stirred and mixed evenly, filtered, and the ...

Embodiment 2

[0041] A method for co-processing organic hazardous waste in a cement kiln, the main scheme of which is:

[0042] 1. Organic hazardous waste pretreatment. Firstly, the organic hazardous waste is preliminarily dewatered, and then filtered out to separate the liquid organic hazardous waste from the solid organic hazardous waste. The liquid organic hazardous waste enters the liquid organic hazardous waste storage tank; the solid organic hazardous waste The waste enters the mixer and is mixed with the auxiliary fuel according to the mass percentage content and the addition amount of 30%;

[0043] 2. Incineration of organic hazardous waste. The uniformly mixed solid organic hazardous waste is sent to the solid organic hazardous waste disposal furnace through the conveying equipment for incineration at a temperature of 1100 ° C. The separated liquid organic hazardous waste is added to the mass percentage content 1.6% stabilizer, stir and mix evenly and then filter, and the obtained ...

Embodiment 3

[0054] A method for co-processing organic hazardous waste in a cement kiln, the main scheme of which is:

[0055] 1. Organic hazardous waste pretreatment. Firstly, the organic hazardous waste is preliminarily dewatered, and then filtered out to separate the liquid organic hazardous waste from the solid organic hazardous waste. The liquid organic hazardous waste enters the liquid organic hazardous waste storage tank; the solid organic hazardous waste The waste enters the mixer, and is mixed with the auxiliary fuel according to the addition amount of 35% according to the mass percentage content;

[0056] 2. Incineration of organic hazardous waste. The uniformly mixed solid organic hazardous waste is sent to the solid organic hazardous waste disposal furnace through the conveying equipment for incineration at a temperature of 1200 ° C. The separated liquid organic hazardous waste is added to the mass percentage content 2.3% stabilizer, stirred and mixed evenly, filtered, and the ...

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Abstract

The present invention relates to the field of environmental protection, and specifically relates to a method for co-processing organic hazardous waste in a cement kiln; the method for co-processing organic hazardous waste in a cement kiln of the present invention includes: organic hazardous waste pretreatment, organic hazardous waste incineration, and post-treatment; The invention provides a method for co-processing organic hazardous waste with complex components in a cement kiln. The method of the invention separates liquid organic hazardous waste, which is conducive to improving combustion efficiency and increasing the replacement rate of raw materials and fuels; complex organic liquid hazardous waste is processed During the process, due to the temperature change or the evaporation of volatile matter, it is easy to cause the solid matter dissolved in the organic hazardous waste to precipitate, block the atomization nozzle, and cause a disposal failure; the present invention adds a kind of glyceryl vacceto silane to the liquid organic hazardous waste As a stabilizer, the stabilizer can effectively prevent the occurrence of this phenomenon, reduce the risk of equipment operation, and reduce the failure rate; this method treats organic hazardous waste as a resource, saves energy, and makes a greater contribution to environmental protection.

Description

technical field [0001] The invention relates to the field of environmental protection, in particular to a method for co-processing organic hazardous waste in cement kilns. Background technique [0002] With the rapid development of my country's industry, the output of various organic hazardous wastes continues to rise, including pharmaceutical waste, waste drugs, pharmaceuticals, pesticide waste, wood preservative waste, waste organic solvents and waste containing organic solvents, waste mineral oil and waste containing organic solvents. Mineral oil waste, oil / water, hydrocarbon / water mixture or emulsion, refining (distillation) residue, paint, ink, pigment and similar product waste, the harmless treatment of organic hazardous waste has become an urgent environmental problem to be solved. [0003] CN109575964A discloses a pyrolysis device for organic hazardous waste, which includes a carbonization cylinder, a first through hole is provided on the top inner wall of the carboni...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23G5/02F23G5/04F23G5/14F23G5/46F23G5/50F23G7/04F23J15/02F27B7/34F27D17/00C07F7/08
CPCF23G5/02F23G5/04F23G5/14F23G5/46F23G5/50F23G7/04F23J15/027F27B7/34F27D17/004C07F7/081C07F7/0829Y02P20/10Y02P40/125
Inventor 李春萍黄敏锐唐柯胡锡峰郭嘉诚吴晨钰赵万仪
Owner 浙江红狮环保股份有限公司
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