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Method for treating urban domestic refuse by cement kiln

A technology of municipal solid waste and solid waste, which is applied in the new field of using cement kiln to treat municipal solid waste, can solve the problems of secondary pollution, acid gas corrosion, and high cost of pollution control, and achieve strong adaptability, low investment, and elimination The effect of long-term pollution hazards

Inactive Publication Date: 2007-09-05
尹小林
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Judging from the operating status of waste incineration and power plants at home and abroad, there are widespread problems such as secondary pollution, serious acid gas corrosion, and high pollution control costs.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Example 1. In a Φ3×11m shaft kiln factory, domestic garbage is transported by car into the cement floor of the factory. A mobile distribution machine spreads deodorant and quicklime for disinfection and deodorization, and the forklift sends it into the vibrating discharge chute. Unloaded into B1000×15000m sorting belt equipped with unpacking machine and electromagnetic iron remover, manually sorted construction waste and large pieces of bamboo and wood, etc., unloaded into two intermittent compressors for vacuum compression dehydration, dehydrated and pushed out, passed through B800 The ×5000m belt conveyor is sent to 2 shearing crushers for coarse crushing and fine crushing. After the fine crushing, the domestic waste is transported to the mixer through the belt conveyor with electronic induction scale. Add quicklime, calcium carbide slag, modified sintering aid, and binder and send them to the mixer together. The mixed materials are sent to the press through the belt, ...

Embodiment 2

[0035] Example 2. A Φ1.6 / 1.8×36m dry-process hollow rotary kiln in a certain factory, with an original annual output of 15,000 tons of white cement, was transformed to treat urban domestic waste. The process flow is as follows: Domestic waste is transported by car into the factory and immediately sprinkled with deodorant and quicklime. The forklift sends it into the vibrating unloading chute, and then it is unloaded on the slow-speed sorting belt. The construction waste is sorted manually, and unloaded into a fixed The dehydration is compressed and dehydrated by a type compressor. After dehydration, it is pushed out and conveyed by a belt to a shear crusher for crushing. The crushed garbage is sent to the shed by the belt. Then it is sent from the stacking shed to the garbage batching bin through the belt, and the stone powder and modified sintering aid enter the batching bin through the elevator, and the ingredients are weighed by the electronic belt and sent to the mixer thro...

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PUM

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Abstract

A method for reclaiming the city life garbage by cement kiln includes such steps as separating the building garbage from city life garbage, dewatering, breaking, regulating lime saturation coefficient, adding modified combustion promoter and adhesive, shaping, and clacining in cement kiln to obtain cement clinker.

Description

Technical field: [0001] The invention relates to a new method for harmless, resourceful and energy-based treatment of municipal solid waste in environmental protection technology, and specifically relates to a method for firstly treating municipal solid waste to make waste-derived raw meal or raw meal block, and then using a cement kiln A new way of firing clinker. Background technique: [0002] At present, domestic waste treatment methods developed and used abroad include incineration, pyrolysis, gasification, heat treatment technologies including RDF, and bioconversion technology mainly for landfill gas utilization. Waste treatment in developed countries has shifted from sanitary landfill to incineration. For example, in the United States, due to the vast land, the sanitary landfill method was mainly used to dispose of waste in the past. However, in recent years, it has been found that the landfill waste that has been strictly anti-seepage treated has a great adverse impac...

Claims

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Application Information

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IPC IPC(8): B09B3/00
CPCY02W30/58
Inventor 尹小林
Owner 尹小林
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