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Precipitation method of horizontal flow tank

A technology of advection tanks and retaining walls, applied in separation methods, chemical instruments and methods, settling tanks, etc., can solve problems such as poor sedimentation effect and poor sedimentation effect of advection tanks

Inactive Publication Date: 2010-10-20
SHANXI TAIGANG STAINLESS STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the fast water flow in the advection pool, the sedimentation effect is relatively poor, but at the same time, the advection pool is often limited by the geographical location, and it is difficult to solve the problem of poor sedimentation effect of the advection pool by expanding the capacity

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Embodiment Construction

[0011] The present invention is put on trial in the turbid ring advection pool of the mixed line pumping station of Taiyuan Iron and Steel Energy Power Plant, and the designed water treatment capacity of the advection pool is 300-350m 3 / h, upstream water SS≤100mg / l, due to production speed up, water consumption increased to 350--425m 3 / h, and due to changes in the rolling plate, the upstream water SS increases, reaching a maximum of 210mg / l. As a result, the water treatment capacity of the system is insufficient, and the SS of the effluent seriously exceeds the standard. In order to ensure the quality of the effluent, a 175m3 / h filter was added, and the quality of the effluent was improved, but still exceeded the standard. The main reason is that the water flow in the advection pool is too fast and the sedimentation effect is poor, but the advection pool cannot be expanded due to geographical limitations.

[0012] The advection pool is 10 meters long, oriented north-south,...

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Abstract

The invention discloses a precipitation method of a horizontal flow tank, which aims to improve the precipitation effect on the premise of not enlarging the volume of the horizontal flow tank. In the precipitation method, holes are perforated on a water inlet retaining wall of the horizontal flow tank to manufacture a screen wall; the bottom on the water inlet side of the horizontal flow tank is provided with a sloping plate which is placed behind the water inlet retaining wall in a sloping mode; the front end of the sloping plate is higher than the bottom of the tank and is abutted on the water inlet retaining wall, the back end of the sloping plate stuck on the bottom of the horizontal flow tank, and the whole sloping plate is paved in a sloping mode with a slop angle of 45 degrees; the middle part of the horizontal flow tank is provided with a flow retaining wall which is made of thick steel plates, two sides of the flow retaining wall are in suspending fixation on two side walls of the horizontal flow tank through channel steels; an inclined tube settler is arranged between the flow retaining wall and a water outlet retaining wall, and the inclined tube settler comprises a hexangular honeycomb packing and a steel frame; and the inside of the steel frame is uniformly divided into a plurality of partitions, and each partition is filled with the hexangular honeycomb packing respectively.

Description

technical field [0001] The invention relates to a water treatment process. Background technique [0002] Many steel plants use advection tank sedimentation method to treat sewage. Because the water flow in the advection pool is too fast, the sedimentation effect is relatively poor, but at the same time, the advection pool is often limited by the geographical location, and it is difficult to solve the problem of poor sedimentation effect of the advection pool through capacity expansion. Contents of the invention [0003] The object of the present invention is to overcome the shortcomings of the above prior art and provide a sedimentation method for an advection tank that improves the sedimentation effect without expanding the volume of the advection tank. [0004] The advection pool is generally a rectangular open pool, and the capacity requirement is designed according to the amount of water to be treated. The inventive method is: [0005] (1) Drill holes on the water r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D24/20B01D24/38B01D21/02
Inventor 李俊芳张桂娥
Owner SHANXI TAIGANG STAINLESS STEEL CO LTD
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