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Split concentration belt filter press and sludge dehydration process

A belt filter press, extrusion dehydration technology, applied in dehydration/drying/concentrated sludge treatment, water/sludge/sewage treatment, sludge treatment, etc. Low capacity, waste and other problems, to achieve the effect of aggravating gravity separation, good dehydration effect, and improved dehydration rate

Active Publication Date: 2017-03-15
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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  • Split concentration belt filter press and sludge dehydration 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 concentration belt filter press and a sludge dehydration process. The split concentration belt filter press comprises a feed dehydrating device and an extrusion dehydrating device which are not connected with each other, wherein the feed dehydrating device comprises a dynamic mixer, a material distribution bucket and a slope type gravity dehydration mesh belt; the dynamic mixer comprises a bottom feed inlet, a top overflow pipe and a spiral stirring unit; and the outlet of the overflow pipe is communicated with the material distribution bucket. Since the dynamic mixer is employed for full mixing of sludge and a flocculating agent, the utilization rate of the flocculating agent is increased, consumption is reduced, and a dehydration rate is improved. Mixed sludge undergoes gravity dehydration by the slope type gravity dehydration mesh belt and are then successively subjected to pre-dehydration by an L-type pre-extrusion zone of the extrusion dehydrating device and to in-depth dehydration by a squeezing zone of the extrusion dehydrating device, so the dehydration rate of a sludge product is further improved. The split concentration belt filter press provided by the invention has the advantages of the high utilization rate of the flocculating agent, the high dehydration rate, greater sludge treating capability, etc.

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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IPC IPC(8): B01D33/052B01D33/41C02F11/12C02F11/14
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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