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Method for firing cement from urban refuse

A municipal solid waste and waste incineration technology, which is applied in the field of municipal solid waste to burn cement, can solve the problems of secondary pollution, unusability, and huge investment, and achieve the effects of reducing treatment costs, solving pollution problems, and avoiding secondary pollution

Inactive Publication Date: 2008-02-20
张相红
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method can utilize the combustible matter of rubbish to generate heat and generate electricity, but there are problems: the non-combustible matter (i.e. the ashes of rubbish) containing about 70% in the rubbish cannot be utilized, causing secondary pollution; the harmful gas produced by burning rubbish Special systems and equipment are required for processing, and the investment is huge

Method used

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  • Method for firing cement from urban refuse

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Embodiment Construction

[0049] In conjunction with accompanying drawing, provide embodiment of the present invention as follows:

[0050]As shown in the figure: in this embodiment, a garbage incinerator is set on the existing precalcining kiln cement production line. The garbage incinerator is composed of a suspension type combustion furnace 3 and a rotary type combustion furnace 9. 7 sealed connection. The rotary incinerator 9 is a circular cylinder made of steel, which is arranged at a horizontal inclination angle relative to the suspension type incinerator 9, and its horizontal inclination is 3-5%, supported by supporting wheels 10. The cylinder body is provided with a driving device 11 for driving the rotation of the cylinder body, and its lower end (burner head) is provided with a furnace tail sealing device 12, an air inlet 14, an outlet 15 for garbage ashes and a burner 13 (which can spray oil or Pulverized coal is to maintain furnace temperature, guarantees the normal combustion of rubbish),...

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Abstract

A method for baking cement from urban domestic refuse is carried out by arranging refuse incinerator at cement pre-decomposition kiln system, incinerating refuse by hot air from cement clinker cooler, and delivering hot smoke produced by incinerating refuse into decomposition furnace as hot energy for decomposing cement green stock. It is cheap and harmless, has rational design and no second environmental pollution.

Description

Technical field [0001] The invention belongs to the field of harmless treatment of urban domestic waste and the application of cement industry products, and mainly relates to a method for burning cement by urban domestic waste. Background technique [0002] At present, the most advanced method for dealing with municipal solid waste at home and abroad is the method of incinerating waste to generate electricity. This method can utilize the combustible matter of rubbish to generate heat and generate electricity, but there are problems: the non-combustible matter (i.e. the ashes of rubbish) containing about 70% in the rubbish cannot be utilized, causing secondary pollution; the harmful gas produced by burning rubbish Special systems and equipment are required for processing, and the investment is huge. Contents of the invention [0003] The purpose of the present invention is thus produced, and a kind of method of municipal solid waste burning cement is proposed. This method...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B7/36C04B7/345
Inventor 张相红王锐吴武伟黄海涛李团飞
Owner 张相红