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Air flushing and air lifting device for cyclone grit chamber

A swirling grit chamber and air flushing technology, which is applied to the feeding/discharging device of the settling tank, the settling tank, and the separation of sediments by centrifugal force, etc., can solve the problem of outage of the swirling grit chamber, poor working environment, Difficulty in dismantling the equipment, etc., to alleviate bottom mud accumulation and shorten maintenance time

Active Publication Date: 2016-12-28
THUNIP CORP LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] When the amount of silt in the raw sewage is too large, the sedimentary silt in the sand bucket is not lifted in time, so that the sedimentary silt is densely packed together, and it is easy to cause blockage of air flushing and air lifting pipelines
The dredging of air flushing and air lift pipelines and the cleaning of mud and sand in the sand bucket are often caused by the harsh working environment and the difficulty of dismantling the equipment, which cause the cyclone grit chamber to be out of service for a long time, and dredging and cleaning need to be manually lowered into the grit chamber ,Time-consuming

Method used

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  • Air flushing and air lifting device for cyclone grit chamber
  • Air flushing and air lifting device for cyclone grit chamber
  • Air flushing and air lifting device for cyclone grit chamber

Examples

Experimental program
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Effect test

Embodiment 1

[0022] Such as figure 2 As shown, the air flushing pipeline of the air flushing and air lifting device includes an air flushing front section pipeline 21 and an air flushing rear section pipeline 22, and the inlet of the air flushing front section pipeline 21 is connected to a blower, and the compressed air generated by the blower is connected to the air flushing pipeline, and the air flushing The outlet of the rear pipe 22 is set in the sand bucket of the cyclone grit chamber and embedded in the mud-sand mixture. A tee joint 9 is arranged between the air flushing front pipe 21 and the air flushing rear pipe 22. The tee joint 9 The first air flush pipeline interface and the second air flush pipeline interface are connected with the outlet of the air flush front section pipeline 21 and the inlet of the air flush rear section pipeline 22 so that the air flush front section pipeline 21 and the air flush rear section pipeline 22 are connected. In order to ensure the three-way join...

Embodiment 2

[0025] Such as image 3 As shown, the air flushing pipeline 2' and the air lifting pipeline 3' of the air flushing and air lifting device are a whole pipe, the inlet of the air lifting pipeline is connected to the blower, and the compressed air generated by the blower is connected to the air lifting pipeline 3', and the air lifting The outlet of the pipeline communicates with the air lifter of the air lifting device. The sand washing operation of the air flushing pipeline 2' adopts water washing, and the inlet of the air flushing pipeline 2' is connected to the backwash water pump 11 of the filter press to connect high-pressure water to the air flushing pipeline 2', so that the sand washing can be carried out on the air flushing pipeline 2' at the same time. rinse. In addition, the high-pressure water discharged from the air flushing pipeline can also dilute the mud and sand in the sand bucket, which solves the problem of compaction of the mud and sand in the sand bucket due ...

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Abstract

The present invention discloses a gas impact and gas stripping apparatus of swirling flow grit chamber, wherein the gas impact pipeline and / or gas stripping pipeline of the gas impact and gas stripping apparatus is provided with a high-pressure water connection inlet. According to the present invention, when the gas impact and gas stripping apparatus is repaired, maintenance personnel does not require entering the grit chamber and only requires introduction of high pressure water into the gas impact pipeline and / or gas stripping pipeline to rinse so as to dilute mud and sand in the sand hopper and the pipeline, such that the production operation of the whole water plant can not be affected by the maintenance process, the maintenance time is substantially shortened, and the problem of accumulation of mud on the bottom of the biochemical reaction pool is alleviated to a certain degree.

Description

technical field [0001] The invention relates to the field of physical treatment of sewage treatment, in particular to an air flushing and air lifting device for a grit chamber. Background technique [0002] As a safeguard measure for the normal operation of the secondary treatment, the grit chamber has become a necessary facility for urban sewage treatment plants (especially the combined rain and sewage drainage system). The function of the grit chamber is mainly to remove inorganic particles such as sand and gravel that have a large proportion in the sewage and are easy to settle and separate. If sand is not removed, sand enters the subsequent treatment facilities, which will inevitably cause equipment wear or deposit in structures, resulting in equipment operation failure, and mixed in sludge, which also affects the treatment and utilization of sludge. Therefore, it should be used in biological Set up a grit chamber before treatment to remove silt and other precipitable s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D21/26B01D21/24B01D21/02
Inventor 仲崇川李星文杨大蔚孙宝成陆从喜李子言
Owner THUNIP CORP LTD