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Multi-stage micro-net screening and cleaning system and method for sludge impurities

A cleaning system and impurity technology, applied in cleaning methods and appliances, cleaning methods using liquids, sludge treatment, etc., can solve the problem of sludge reduction or reflux treatment, impurities that cannot be treated as domestic waste, and effective disposal and other problems, to achieve the effect of reducing cleaning and maintenance workload, facilitating collection and transportation, and easy disassembly and cleaning

Active Publication Date: 2021-09-03
SHANGHAI ZIZHENG ENVIRONMENT PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high amount of sludge carried in the impurities in the sludge impurity screening and collection device, the final impurities may not be further treated as domestic waste, nor can they be reduced or returned as sludge, so they cannot be effectively disposed of. Sludge and impurity separation equipment with micro-grid is relatively complicated, and the workload of cleaning and maintenance is relatively large, which needs further optimization

Method used

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  • Multi-stage micro-net screening and cleaning system and method for sludge impurities
  • Multi-stage micro-net screening and cleaning system and method for sludge impurities
  • Multi-stage micro-net screening and cleaning system and method for sludge impurities

Examples

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Embodiment 1

[0045] Such as Figure 1-2 As shown, it is a sludge impurity multi-stage micro-mesh screening and cleaning system provided in Example 1. The system consists of a primary impurity screening device 1-1, a primary impurity cleaning device, and a sieved sludge collection device 3- 1. Multiple secondary impurity screening devices 1-2, impurity collection device 2 and cleaning water recycling device 3-2; figure 2 As shown, there can be n secondary impurity screening devices 1-2, and then the sludge obtained by screening the primary impurity screening device 1-1 can be subjected to multiple secondary impurity screening, and then the sludge in the sludge The impurities should not be left as far as possible, which ensures the screening effect.

[0046] Such as image 3 As shown, the primary impurity screening device consists of a primary frame 4-1, a primary water inlet channel 5-1, a primary inclined trough 6-1, a primary inclined plate 7-1, and a primary impurity screening device ...

Embodiment 2

[0059] This embodiment provides a method for screening and cleaning sludge impurities using the system provided in Embodiment 1, which includes the following steps:

[0060] 1) The sludge passes through the water inlet channel 5-1, and finally enters the primary impurity screening device 1-1 through the inclined launder 6-1, and performs primary screening in the U-shaped channel 11-1 of the primary impurity screening device. The transmission shaft 13-1 is powered by the primary motor 12-1, and drives the primary screen frame 9-1 and the primary The screen 8-1 reciprocates horizontally along the vertical section of the U-shaped channel 11-1 of the primary impurity screening device. The flocs condense into rod-shaped impurity clusters with poor stability due to cohesion, and continue to adhere to other impurities on the moving path. They slide freely along the U-shaped channel 11-1 of the primary impurity screening device, and enter the The screened sludge collection device 3-1...

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Abstract

The invention provides a multi-stage micro-net screening and cleaning system and method for sludge impurities. The system comprises a first-stage impurity screening device, a first-stage impurity cleaning device, a screened sludge collecting device, a plurality of second-stage impurity screening devices, an impurity collecting device and a cleaning water recycling device; the first-stage impurity screening device is composed of a first-stage rack, a first-stage water inlet channel, a first-stage inclined launder, a first-stage inclined plate, a first-stage impurity screening device U-shaped channel, a first-stage motor, a first-stage transmission shaft and a first-stage screen frame transmission support; the first-stage impurity cleaning device comprises a cleaning water tank, an aeration pipe and a fan; the second-stage impurity screening device and the first-stage impurity screening device are of similar structures; and the cleaning water recycling device comprises a cleaning water return pipe and a submersible sewage pump. According to the system, the sludge impurity separation effect is better, the water content of discharged slag is lower, impurities in a sludge impurity mixed solution are removed, sludge adhesion is reduced, and finally, the impurities can be directly transported outwards to a treatment system of a household garbage station.

Description

technical field [0001] The invention provides a sludge impurity multi-stage micro-mesh screening and cleaning system and method applied to the separation of impurities such as garbage and sand residue in sludge, which belongs to the technical field of sewage treatment and is suitable for garbage and sand residue in sludge in the field of water environment Separation, cleaning, drying and dehydration and collection of impurities, and meet the requirements of different final impurity moisture content, especially suitable for the separation of garbage, sand residue and other impurities in the sludge of sewage treatment plants, and can also be used for similar separations with high moisture content. Impurity sludge. Background technique [0002] With the rapid development of the economy, the discharge of sewage (waste) water is gradually increasing. At the same time, the impurities of inorganic and organic particles in sewage (waste) water are becoming more and more complex. Som...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B07B1/30B07B1/46B08B3/10C02F11/00
CPCB07B1/30B07B1/4609B07B1/46B08B3/10B08B3/106C02F11/00B07B2201/04
Inventor 尤章超官章琴刘昀王德兵张印藏莉莉吴子越
Owner SHANGHAI ZIZHENG ENVIRONMENT PROTECTION TECH
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