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Novel active sand filter

A technology of filter and active sand, which is applied in the direction of gravity filter, loose filter material filter, filter separation, etc. It can solve the problems of affecting the quality of filtered water, slowness, and untimely sewage discharge, and achieves low operation and maintenance costs. High efficiency and low head loss

Pending Publication Date: 2018-11-30
广东普施德泽环保股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing active sand filter has the problem that when the dirty sand is treated, the dirty sand cannot sink in time and the backwashing of the dirty sand and the discharge of impurities are slow, resulting in untimely sewage discharge and affecting the quality of water filtration. water quality

Method used

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  • Novel active sand filter

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Embodiment 1

[0034] Such as figure 1 As shown, a new type of active sand filter includes a filter tank body 4, a raw water inlet pipe 1 connected to the side wall of the filter tank body 4, and also includes a water distributor assembly, a dirty sand collection assembly, and a dirty sand cleaning components, sewage discharge components and filtrate output components. The filter tank body 4 can be a carbon steel structure or a concrete structure, and can be flexibly designed according to water volume and site conditions. There is a filter bed formed by gravel in the filter tank body 4 .

[0035] The water distributor assembly includes a water inlet casing connected to the raw water inlet pipe 1 , and a water distributor 13 connected to the lower end of the water inlet casing. Raw water enters the water inlet casing through the raw water inlet pipe 1, and then enters the water distributor 13. The water distributor 13 includes a plurality of water distribution branch pipes, and the water dist...

Embodiment 2

[0045] This embodiment only describes the difference from the above embodiment, and other technical features are the same as the above embodiment. In this embodiment, one end of the connecting piece 11 is connected to the bottom of the side wall of the upper sand guiding bucket 12 , and the other end of the connecting piece 11 is connected to a position near the top of the inner side wall of the lower sand guiding bucket 3 . Ensuring that there is enough entrance space for the dirty sand to enter the lower sand guide bucket 3 from the outer sidewall of the upper sand guide bucket 12 .

Embodiment 3

[0047] This embodiment only describes the difference from the above embodiment, and other technical features are the same as the above embodiment. In this embodiment, the inner side wall of the lower sand guide bucket 3 and the outer wall of the upper sand guide bucket 12 are provided with several guide channels. The diversion channel provides a channel for the sinking of the dirty sand, and due to the gathering effect of the diversion channel, the speed at which the dirty sand enters the lower sand guide bucket 3 is accelerated.

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Abstract

The invention discloses a novel active sand filter. The novel active sand filter comprises a filter tank body, a raw water inlet pipe connected to the side wall of the filter tank body, a water distributor assembly, a polluted sand collecting assembly, a polluted sand cleaning assembly, a sewage discharge assembly and a filtrate output assembly. The water distributor assembly comprises a water inlet casing pipe connected to the raw water inlet pipe and a water distributor connected to the lower end of the water inlet casing pipe. The polluted sand collecting assembly comprises an upper sand guide bucket, a lower sand guide bucket center tube and a sand transfer pipe. The sewage discharge assembly comprises a backwash sewage pipe and a backwash sewage collection cabin. The polluted sand cleaning assembly comprises a sand washer, a multi-stage air lifting pump and an air compressor. The filtrate output assembly comprises a filtered water collection bin and a filtered water output pipe. The novel active sand filter can improve the efficiency of backwashing of the polluted sand and accelerate the discharge of impurities in the filter during the process of filtering the raw water.

Description

technical field [0001] The invention relates to the field of sewage treatment equipment, in particular to a novel active sand filter. Background technique [0002] Activated sand filter is a continuous filtration equipment integrating flocculation, clarification and filtration. It is widely used in the fields of drinking water, industrial water, advanced sewage treatment and reclaimed water treatment. The system adopts the principle of upflow fluidized bed filtration and a single homogeneous filter material. Filtration and sand washing are carried out at the same time. It can run continuously and automatically for 24 hours without stopping for backwashing. The ingenious sand lifting and sand washing structure replaces the traditional high-power backwashing. system with extremely low energy consumption. The system requires no maintenance, is easy to manage, and can be unattended. [0003] The active sand filter is composed of a tank, a water distributor, a sand guide bucke...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D24/16B01D24/46
CPCB01D24/16B01D24/4631B01D24/4689
Inventor 王鑫琦
Owner 广东普施德泽环保股份有限公司
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