Treatment method and implementation system for refuse incineration ash

A waste incineration ash and disposal method technology, applied in the direction of cement production, etc., can solve the problems of large water resources, consumption, and reduce the service life of refractory materials in the incinerator and cement kiln system, so as to facilitate grinding, complete combustion, decomposition and purification Effect

CN102730993AInactive Publication Date: 2012-10-17NANJING KISEN INT ENG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2012-10-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a treatment method and system for refuse incineration ash. The treatment method for the refuse incineration ash comprises the steps that: the refuse is incinerated in an refuse incinerator (1) and the generated fly ash as well as the incineration smoke enters a decomposition furnace (2) of a cement clinker sintering system and then enters a cement kiln together with cement raw meal to be sintered to the cement clinker; hot slag is discharged out of the refuse incinerator after incineration, and is cooled in a refuse slag cooling device (3) by cooling air; the cool air exchanges heat with the hot slag to form hot air, and the hot air enters the refuse incinerator for drying and incinerating the refuse; cool slag formed by air cooling of the hot slag enters a raw material batching station to be used as the raw material of the cement and to enter a cement raw material milling system to be subjected to cement raw meal milling; and the cool slag and the other raw materials are milled to obtain the powdery cement raw meal, and the powdery cement raw meal enters the cement clinker sintering system to sinter to obtain the cement clinker. According to the system for the refuse incineration ash, the refuse slag cooling device is connected with the refuse incinerator and is arranged below the refuse incinerator.
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Description

technical field

[0001] The invention belongs to the technical field of garbage disposal, and in particular relates to a method and an implementation system for co-processing domestic garbage incineration ash by utilizing a cement burning system. Background technique

[0002] The source and composition of domestic waste are complex, which can be roughly divided into organic matter and inorganic matter. With the improvement of urban living standards, the content of organic matter is gradually increasing. my country's waste has the characteristics of high moisture content and low calorific value. At present, my country's garbage stockpile over the years has reached more than 6 billion tons, occupying 500 million square meters of arable land. In 2010, the amount of urban garbage generated was about 264 million tons, and it is increasing at an average annual rate of 5-8%. In 2050, it will reach 528 million The disposal of urban domestic waste has become a major "bottleneck" restr...

Examples

Embodiment Construction

[0031] The present invention will be further described below in conjunction with the accompanying drawings.

[0032] like Figure 1 to Figure 5 as shown, A method for disposing of waste incineration ash, Include the following steps:

[0033] Step 1: After the garbage is incinerated by the garbage incinerator 1, the fly ash enters the decomposition furnace of the cement clinker burning system along with the incineration flue gas and enters the cement kiln together with the raw material to burn into cement clinker;

[0034] Step 2: After the hot slag is discharged from the garbage incinerator 1, the cooling air is used for air cooling in the garbage slag cooling device 3. After heat exchange between the cold air and the hot slag, it becomes hot air and enters the garbage incinerator 1 for drying and drying of the garbage. Incineration use;

[0035] Step 3: The hot slag enters the raw material batching station through the air-cooled cold slag as cement raw material to partici...