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Low-energy consumption sludge heat-drying system

A low energy consumption and sludge technology, applied in the direction of dehydration/drying/thickened sludge treatment, etc., can solve the problems of high energy consumption, and achieve the effect of low energy consumption in equipment operation, low investment and operation costs, and simple system structure

Inactive Publication Date: 2017-08-08
北京首创污泥处置技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In view of the defects existing in the existing sludge thermal drying system, the purpose of the present invention is to provide a sludge thermal drying system with low energy consumption, so as to avoid the high energy consumption easily caused by the existing sludge thermal drying system

Method used

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  • Low-energy consumption sludge heat-drying system

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Embodiment Construction

[0024] Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings. In the figures, identical elements are indicated with similar reference numerals. For the sake of clarity, various parts in the drawings have not been drawn to scale. Also, some well-known parts may not be shown.

[0025] The invention can be embodied in various forms, some examples of which are described below.

[0026] figure 1 It is a schematic diagram of the low energy consumption sludge thermal drying system of the present invention. Low energy consumption sludge thermal drying system, including sludge silo 1, screw conveying device 2, indirect dryer 3, steam boiler 4, steam compressor 5, dry sludge silo 6, truck 7, softened water device 8 and boiler steam gas water separator 9.

[0027] The outlet of the sludge silo 1 is connected with the inlet of the screw conveying device 2 through a pipeline. Sludge with a moisture content of 80% is stored in ...

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Abstract

The invention relates to a low-energy consumption sludge heat-drying system, which comprises an indirect drying machine, a steam boiler, a boiler steam-water separator, and a steam compressor, the inlet of one side of the indirect drying machine is connected to a sludge conveyer, the top outlet of the indirect drying machine is connected to the bottom inlet of the boiler steam-water separator, the top outlet of the boiler steam-water separator is connected to the bottom inlet of the steam boiler, the bottom outlet of the indirect drying machine is connected to a dry sludge bin, the top outlet of the steam boiler is connected to the inlet of the steam compressor, and the outlet of the steam compressor is connected to the inlet of the other side of the indirect drying machine. The combined heat-drying system adopted by the invention can recycle waste steam, and thereby a low-energy consumption level is kept by the system.

Description

technical field [0001] The invention relates to a sludge thermal drying system with low energy consumption. Background technique [0002] With the continuous increase of urban population and the improvement of urban sewage treatment rate, the output of urban sewage sludge is also increasing, and the burden of sludge treatment and disposal is significantly increased. The methods of sludge disposal mainly include landfill, land utilization and incineration. Because municipal sludge usually has a high water content, it is still as high as about 80% after concentration and dehydration treatment, which has the characteristics of bulky, unfavorable transportation, and unstable properties. Direct landfill will occupy a large amount of land, and at the same time, leachate will pollute groundwater; land use is greatly restricted due to large transportation volume, difficulty in dispersion, and easy pollution of groundwater; direct incineration will also cause calorific value due to ...

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Application Information

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IPC IPC(8): C02F11/12
CPCC02F11/12
Inventor 武晓剑刘家富孔繁杰李雪怡刘迪万修志王荣娟陈程郝坤
Owner 北京首创污泥处置技术有限公司