Inclined pipe type water distribution mechanism

Abstract

The invention relates to an inclined pipe type water distribution mechanism which comprises an air flotation tank, wherein a contact chamber is arranged at the front end of the air flotation tank, a separation chamber is arranged behind the contact chamber, and a sewage distribution tank is arranged at the front end of the contact chamber; water distribution pipes are arranged below the sewage distribution tank, an outlet of the water distribution pipes points at the tank bottom of the air floatation tank, and the inclined pipe type water distribution mechanism is characterized in that an acute angle is formed between the water distribution pipes and the horizontal plane of the tank bottom of the air floatation tank, and a dissolved gas water main pipe is mounted above one end of the outlet of the water distribution pipes. A plurality of release devices are uniformly distributed on the dissolved gas water main pipe. A plurality of water distribution holes are distributed on the lower surfaces of the water distribution pipes. The inclined pipe type water distribution mechanism has the following advantages: 1) the adoption of inclined pipes for water distribution can greatly increase the contact reaction time between raw water and dissolved gas water; 2) the size of the inclined pipes is far larger than the diameter of the traditional water distribution small holes, thereby effectively reducing the probability of non-uniform water distribution caused by blockage of the water distribution main pipe; and 3) as each water distribution inclined pipe corresponds to one release device, the blind area phenomenon of the contact chamber can be avoided.

Description

technical field [0001] The invention relates to an inclined tube type water distribution mechanism, in particular to a water distribution mechanism for fully contacting raw water and dissolved air water in an air flotation tank. Background technique [0002] In water treatment, there is a very important and widely used solid-liquid separation method - air flotation. The air flotation method is a water purification method in which a large number of micro-bubbles are introduced into the raw water to make them adhere to the impurity particles, resulting in a state of overall density ρ<1, which rises to the water surface by buoyancy to form scum. [0003] In the air flotation process, there is a very critical process, that is, the suspended particles in the water must adhere to the microbubbles in the provided dissolved air water to form a "bubble-particle" complex with an overall density lower than that of water. There are many conditions that determine whether it can adher...

AI Technical Summary

Problems solved by technology

But this structure has flaws

First of all, due to the large size of the sewage water distribution main pipe 11, which takes up a lot of space, the installation of the dissolved air water main pipe 10 must be on the upper side, and the height of the air flotation tank 8 itself is limited, resulting in insufficient contact reaction time between the sewage and the dissolved air water. Just flow in the separation chamber 13; Secondly, rely on the method water distribution of opening small hole at the bottom of the sewage water distribution main pipe 11, when there are larger suspended particles or floating objects in the sewage, the small hole is bound to be blocked, making the water distribution uneven, Affect the air flotation effect; third, because the water distribution of the sewage water distribution main pipe 11 is to rely on a large number of evenly distributed small holes with a small spacing at the bottom, and the release device 9 has only a few in number, and the release device 9 The scope of action is limited. When the sewage is not within the coverage of the action diameter, it will flow away naturally, resulting in a blind spot phenomenon and failing to achieve the purpose of treatment.

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