Chemical waste recycling system and method

A waste and chemical technology, applied in the field of waste treatment system, can solve the problems of lower boiler availability, lower boiler safety, lower economic efficiency, etc., and achieve the effect of preventing slagging in the furnace

Inactive Publication Date: 2012-06-27
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And now that boilers have been enlarged, the problem of slagging has become more prominent
The slagging problem leads to lower boiler safety, lower economy, and lower boiler availability, which has a huge impact on power plant boilers in my country

Method used

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  • Chemical waste recycling system and method
  • Chemical waste recycling system and method

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Embodiment Construction

[0021] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0022] This scheme can recycle the fly ash produced by waste, and achieve the purpose of alleviating the slagging of power plant boilers.

[0023] see figure 1 , the present invention includes an air preheater pipeline for air supply with a pressure regulating valve 4 and a pulverized coal pipeline connected with the air preheater pipeline, the outlet of the pulverized coal pipeline communicates with the feed port of the boiler, and the outlet of the boiler It communicates with the dust collector. A waste conveying device is installed between the air preheater and the pulverized coal pipeline. The waste conveying device includes a powder bin 2 and a powder conveying belt 1 arranged at the entrance of the powder bin 2. The screw powder feeder 3 at the outlet of the warehouse. The screw powder feeder 3 of the present invention is adjusted by a frequency conve...

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Abstract

The invention discloses a chemical waste recycling system and a method therefor. Reasonable waste adding ratio is determined according to slagging evaluation indexes; waste is conveyed into a powder bin through a special conveying system, and enters an air supply pipeline through a powder feeder, air supplied by an air preheater is adjusted by a pressure regulating valve and brings the waste into a pulverized coal pipeline, and through the turbulence of high speed airflow, the powdery waste and pulverized coal are fully mixed to enter a hearth for combustion. The adding amount of the waste can be adjusted through a spiral powder feeder. Because the waste is rich in SiO2, and after the waste is mixed with the pulverized coal, an ash fusion point can be improved and slagging can be reduced or prevented; because the waste is added, the yield of flyash is improved, and the flyash is a common concrete ingredient in the construction industry, so the aim of recycling the waste is fulfilled finally.

Description

technical field [0001] The invention relates to a waste treatment system and method, in particular to a chemical waste recycling system and method capable of solving power station boiler slagging and ultimately achieving waste recycling. Background technique [0002] Chemical enterprises will generate a large amount of waste in the production process, the main component of which is SiO 2 , its content is generally 80-92%, and the impurity components are Na 2 O, CaO, MgO, Fe 2 o 3 、A1 2 o 3 and activated carbon etc. [0003] These wastes are difficult to dispose of. Under normal circumstances, enterprises will send it to the waste treatment plant by landfilling it or paying a certain fee. Large-scale chemical companies produce hundreds of thousands of tons of waste every year. On the one hand, the company will pay a high price to dispose of these wastes. On the other hand, landfilling them will pollute the environment. If it is used comprehensively, it will bring sign...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23G7/00F23K3/00
Inventor 谭厚章王新民王学斌牛奔司纪朋
Owner XI AN JIAOTONG UNIV
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