Method for large-scale cooperative disposal of aging household garbage in landfill through cement kiln

A technology for co-processing and domestic waste, applied in the direction of combustion methods, incinerators, solid waste removal, etc., can solve problems that affect the normal production and product quality of cement plants, high content of non-combustible components, and production cannot be carried out, etc., to achieve The effect of expanding the circular economy industrial chain, large-scale waste disposal, and avoiding secondary pollution

Inactive Publication Date: 2014-11-05
成都建筑材料工业设计研究院有限公司 +2
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Problems solved by technology

[0005] Some existing new treatment methods, such as using cement plants to incinerate waste to make cement, this scheme seems simple and theoretically feasible, but the difficulty of this technology lies in how to realize large-scale waste treatment without affecting the efficiency of the cement plant. Production
If the garbage is directly put into the cement plant to incinerate cement without sorting, the inventors have found that it is actually impossible to achieve, which will seriously affect the normal production and product quality of the cement plant, resulting in the failure of production
After fully sorting the different components of the garbage (such as sorting out recyclable components such as paper, plastics, and metals in advance), only the part tha

Method used

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  • Method for large-scale cooperative disposal of aging household garbage in landfill through cement kiln

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Effect test

Embodiment 1

[0033] Such as figure 1 As shown, a method for large-scale co-processing of aged domestic waste in landfills using cement kilns consists of the following steps in sequence:

[0034] 1) Coarse crushing: A certain batch of 200kg municipal solid waste landfill that has undergone natural aging is subjected to coarse crushing and metal objects are recovered for particle size separation. The weight after separation is 198.9kg. Composed of rubber and plastic, dust, gravel, textiles, wood and bamboo, stones, glass, and ceramics.

[0035] 2) Particle size sorting: Garbage with a particle size > 30mm is further subjected to gravity particle size sorting, with a weight of 32.5kg. The main components are rubber and plastic, textiles, wood and bamboo, stones, glass, ceramics, and small particle garbage with a particle size ≤ 30mm Feed to dry process cement kiln kiln tail as all cement raw materials for direct incineration, weighing 166.4kg, mainly composed of lime soil, gravel and other s...

Embodiment 2

[0042] A method for large-scale co-processing of aged domestic waste in landfills using cement kilns, which consists of the following steps in sequence:

[0043] 1) Coarse crushing: A certain batch of 200kg municipal solid waste landfill that has undergone natural aging is subjected to coarse crushing and metal objects are recovered for particle size separation. The weight after separation is 198.5kg, mainly Composed of rubber and plastic, dust, gravel, textiles, wood and bamboo, stones, glass, and ceramics.

[0044] 2) Particle size sorting: Garbage with a particle size > 30mm is further subjected to gravity particle size sorting, with a weight of 31.8kg. The main components are rubber and plastic, textiles, wood and bamboo, stones, glass, ceramics, and small particle garbage with a particle size ≤ 30mm Feed into dry process cement kiln kiln tail as all cement raw materials for direct incineration, weighing 166.7kg, mainly composed of lime soil, gravel and other small impurit...

Embodiment 3

[0051] A method for large-scale co-processing of aged domestic waste in landfills using cement kilns, which consists of the following steps in sequence:

[0052] 1) Coarse crushing: A certain batch of 200kg of municipal solid waste landfill that has undergone natural aging is subjected to coarse crushing and metal objects are recovered for particle size separation. The weight after sorting is 197.6kg, mainly Composed of rubber and plastic, dust, gravel, textiles, wood and bamboo, stones, glass, and ceramics.

[0053] 2) Particle size sorting: Garbage with a particle size > 30mm is further subjected to gravity particle size sorting, with a weight of 32.2kg. The main components are rubber and plastic, textiles, wood and bamboo, stones, glass, ceramics, and small particle garbage with a particle size ≤ 30mm Feed to the tail of the dry process cement kiln as all cement raw materials for direct incineration, weighing 165.4kg, mainly composed of lime soil, gravel and other small imp...

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Abstract

The invention discloses a method for large-scale cooperative disposal of aging household garbage in a landfill through a cement kiln, belongs to the field of resource and environment protection and particularly relates to garbage disposal special for municipal solid waste landfills. The method sequentially comprises the following steps of coarse crushing, grain-size sorting, gravity grain-size sorting, gas-solid mixture disposal, heavy material disposal and light material disposal. The method is a garbage disposal method which solves the contradiction between occupation and pollution by the municipal refuse landfills and the demands for the landfills due to day-by-day increases of municipal solid waste, achieves large-scale disposal of the garbage, and does not affect production of a dry method cement plant.

Description

technical field [0001] The invention belongs to the field of resources and environmental protection, and in particular relates to waste disposal, especially waste disposal in urban domestic waste landfills. Background technique [0002] With the development of the economy, the improvement of people's living standards and the implementation of the accelerated urbanization process, the generation of urban domestic waste is increasing day by day, which has brought huge pressure to urban environmental protection. However, sanitary landfill is still the main method of urban domestic waste disposal at present, which increases the load of urban domestic waste landfills and gradually shortens their service life, and the search for new urban domestic waste landfills requires land occupation and consideration of the surrounding environment and environment. Terrain, etc., make the site selection of the landfill very difficult, and at the same time, a large amount of money must be inves...

Claims

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Application Information

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IPC IPC(8): F23G5/033F23G5/02B09B1/00
Inventor 温宗国陈涛田海奎
Owner 成都建筑材料工业设计研究院有限公司
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