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Process for processing municipal domestic waste by cement rotary kiln

A technology of municipal solid waste and cement rotary kiln, which is applied in the direction of cement production, etc., to achieve the effects of large processing capacity, low investment, and saving natural resources and non-renewable energy

Inactive Publication Date: 2012-01-25
CITIC HEAVY INDUSTRIES CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a process system for cement rotary kiln to process municipal solid waste, to solve the technical problems faced in the process of municipal solid waste treatment, especially to adopt some pretreatment processes and auxiliary incineration methods to reduce waste input Influence of cement kiln on output and quality of cement clinker

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  • Process for processing municipal domestic waste by cement rotary kiln
  • Process for processing municipal domestic waste by cement rotary kiln
  • Process for processing municipal domestic waste by cement rotary kiln

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Embodiment Construction

[0022] Specific embodiments of the present invention will be described below in conjunction with the accompanying drawings, but not limited to the content listed in the embodiments.

[0023] A cement rotary kiln process system of the present invention for treating municipal solid waste. In the manual sorting process, the dispersedly collected domestic solid waste is firstly transported to the transfer station, and the waste is manually sorted at the transfer station, and the large pieces of waste household appliances are sorted out. , furniture, concrete, iron and other metals and chlorine-containing PVC plastics, waste cables and other substances, and transport the sorted garbage to the cement plant with a garbage truck.

[0024] The sorted waste must first be dehydrated and crushed in the cement plant. Such as figure 1 As shown, after the garbage transport vehicle enters the factory, it first passes through the cement plant weighbridge for weighing. After weighing, the garb...

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Abstract

The invention relates to a process system for processing municipal domestic waste by a cement rotary kiln. The domestic waste is processed by the following steps: manually separating, pre-dewatering and shattering the domestic waste; drying and burning the shattered domestic waste by an auxiliary burning furnace; enabling generated waste gas and released heat to enter a preheat decomposing systemof the cement rotary kiln; and finishing the drying, preheating and partial burning functions of cement raw material, wherein burning ash enters the cement rotary kiln by a cement-decomposing kiln asa raw material to produce cement clinker. The invention fully utilizes facilities and places of the prior cement plants to save investments, processes harmful gas, does not need fuel consumption and has low processing cost and great handling capacity because of a high heat value of organic matter in the waste, solves the problem of secondary pollution, saves natural resources and non-renewable energy and reduces the influence of the waste on a burning system to the minimum.

Description

technical field [0001] The invention relates to a technology for treating urban garbage, in particular to a process system for treating urban household garbage in a cement rotary kiln. Background technique [0002] How to deal with the increasing municipal solid waste has become a major research topic in the world today. The traditional way of disposing of municipal solid waste in China is the landfill method, which is more suitable for a small amount of domestic waste in small cities. The disadvantage of landfilling is that it takes up a lot of valuable land resources, and the garbage disposal cycle is long, which easily leads to the pollution of groundwater, air and soil by landfill leachate and volatile gas. A relatively new treatment method is the incineration power generation method, which has the advantages of less land occupation, short treatment cycle, substantial capacity reduction, and energy recovery. However, the waste incineration power generation method is ex...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B7/28C04B7/43
CPCY02P40/10
Inventor 任沁新王继生戚天明袁曙光许卫革金树宝余佳
Owner CITIC HEAVY INDUSTRIES CO LTD
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