Air-float pool for treating wastewater from melting

Abstract

The invention relates to a floatation pool for processing waste water from smelting. The floatation pool comprises a pool body, a partition wall, a water inlet channel, a water outlet channel, a releaser and a slag runner, wherein the partition wall is arranged inside the pool body to separate the pool body into a contact chamber and a separation chamber, a mud collecting hopper is arranged on a water outlet square on the bottom in the pool body, the releaser is arranged in the contact chamber near the bottom of the pool, one end of the releaser is communicated with one end of a releasing branch pipe, and the other end of the releasing branch pipe is extended out of a pool port. The floatation pool is characterized in that the partition wall is 0.6m to 1.0m away from the water inlet inside of the pool body; the height of the partition wall self is 4.2m to 4.8m; and the partition wall is 80mm to 110mm away from the bottom of the pool body. A baffler which is inclined in the direction of water flow can be arranged on the top of the partition wall. The floatation pool for processing the waste water from smelting has the advantages of good oily stain removal effect and convenient sludge cleaning.

Description

technical field [0001] The invention relates to an air flotation pool for treating smelting wastewater. Background technique [0002] Air flotation is a technology commonly used in wastewater treatment to remove oil. The air flotation treatment method is to introduce or generate a large number of fine air bubbles in the water to make them attach to the suspended oil particles, increase the buoyancy of the suspended particles, and use the principle of buoyancy to make the oil float on the water surface, thereby achieving the purpose of degreasing. [0003] The air flotation tank is divided into a contact chamber and a separation chamber by a partition wall to complete the full contact, adhesion and floating of the microbubbles and impurities in the water. The height of the existing air flotation partition wall is not enough, and the residence time of the water flow in the contact chamber is short. In this way, many air bubbles with oily stains cannot float to the water surfa...

AI Technical Summary

Problems solved by technology

The height of the existing air flotation partition wall is not enough, and the residence time of the water flow in the contact chamber is short. In this way, many air bubbles with oily stains cannot float to the water surface, but remain in the effluent water and are taken away by the effluent water, and the effect of removing oil stains is poor; There is no gap between the wall and the bottom of the pool, and the sludge deposited in the contact area cannot be cleaned. After a long time, a large amount of sludge accumulates, and it cannot flow away with the water until it is higher than the top of the partition wall; due to the sludge accumulation, the releaser is blocked

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