A separate thickening belt filter press and sludge dewatering process

A belt filter press, extrusion dehydration technology, used in dehydration/drying/concentrated sludge treatment, water/sludge/sewage treatment, sludge treatment, etc. The problems of large dosage and waste can achieve good dehydration effect, intensify gravity separation, and increase dehydration rate.

Active Publication Date: 2019-07-09
广州绿鼎环保设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Most of the existing belt filter presses are ordinary models, the dehydration rate and processing capacity are relatively low, and the amount of flocculant is large, resulting in waste

Method used

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  • A separate thickening belt filter press and sludge dewatering process
  • A separate thickening belt filter press and sludge dewatering process

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specific Embodiment

[0031] Such as figure 1 Shown is a schematic structural view of a split concentration belt filter press in a specific embodiment of the present invention. The split concentration belt filter press includes a feed dehydration device 1 and a squeeze dehydration device 2 that are not connected, and one end of the feed dehydration device 1 near the squeeze dehydration device 2 is arranged on the squeeze dehydration device 2 above, which is convenient for the flexible arrangement of equipment.

[0032] The feed dehydration device 1 includes a dynamic mixer 11, a distribution hopper 12 and a slope-type gravity dewatering mesh belt 13, the distribution hopper 12 is located at one end of the slope-type gravity dewatering mesh belt 13 near the dynamic mixer 11, and the dynamic mixer 11 includes a bottom Feeding ports 111 , 112 , top overflow pipe 113 and spiral stirring device 114 , and the outlet of top overflow pipe 113 communicates with distribution hopper 12 . In this embodiment,...

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Abstract

The invention discloses a split thickening belt filter press and a sludge dewatering process. The split thickening belt filter includes a feed dehydration device and a squeeze dehydration device which are not connected, wherein the feed dehydration device It includes a dynamic mixer, a distribution hopper and a slope gravity dewatering mesh belt. The dynamic mixer includes a bottom feed inlet, a top overflow pipe and a spiral stirring device. The outlet of the overflow pipe is connected with the distribution hopper. Since the sludge and flocculant are fully mixed by using the dynamic mixer, the usage rate of flocculant is increased, the consumption is reduced and the dehydration rate is improved. After the mixed sludge is dewatered by gravity on the slope gravity dewatering mesh belt, it is pre-dehydrated in the L-shaped pre-extrusion zone of the extrusion dewatering device and deep dewatered in the pressing zone to further improve the dehydration rate of the sludge product. The separate thickening belt filter press of the present invention has the advantages of high flocculant usage rate, high dehydration rate, greater sludge treatment capacity, and the like.

Description

technical field [0001] The invention relates to the technical field of filter presses, in particular to a split concentration belt filter press. [0002] The present invention also relates to a process for dewatering sludge by using the above-mentioned separate thickening belt filter press. Background technique [0003] The sludge discharged from the sewage treatment plant is bulky due to its high water content, which is not convenient for transportation and treatment, and the sludge containing a large amount of water is easy to rot and smell, resulting in secondary pollution, so dehydration treatment is usually required . The sludge after dehydration treatment can not only greatly reduce the cost of transportation and treatment due to the reduction of water content and volume, but also increase the content of available substances in the sludge after thickening. [0004] At present, the mechanical dehydration method is a widely used dehydration technology. The commonly use...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D33/052B01D33/41C02F11/123C02F11/14
CPCB01D33/048B01D33/41B01D33/052C02F11/121C02F11/123C02F11/14
Inventor 朱冰朱辉
Owner 广州绿鼎环保设备有限公司
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