Alum precipitation separator for sewage treatment

Abstract

The invention discloses an alum precipitation separator for sewage treatment. The alum precipitation separator comprises a plurality of electric telescopic rods, the electric telescopic rods are fixedly mounted on the inner rear wall of the sedimentation tank in parallel at equal intervals, and the ends, away from the inner rear wall of the sedimentation tank, of the electric telescopic rods are fixedly connected with push plates; the push plate is in contact with the inner bottom wall of the sedimentation tank and can slide on the inner bottom wall; the upper surface of the push plate is fixedly connected with a first transmission rod; one end, far away from the push plate, of the first transmission rod penetrates through the front wall of the sedimentation tank and extends out of the sedimentation tank; and a signal transmitter is fixedly mounted on the surface, away from the electric telescopic rod, of the push plate, and the signal receiver is fixedly mounted on the inner front wall of the sedimentation tank opposite to the signal transmitter. Through the arrangement of the electric telescopic rod and the automatic alum adding device, the effects that alum precipitates generated in the sedimentation tank can be separated in real time, and chemicals can be automatically added according to the reaction condition in water are achieved. The device is superior to an existing product.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to an alum sedimentation separator for sewage treatment. Background technique [0002] The reaction sedimentation tank refers to adding a flocculant such as alum to the sedimentation tank to form flocculent sediment in the water, and then absorbing the suspended impurities in the water through the flocculent sedimentation to achieve the effect of purifying the water quality. The reaction sedimentation tank is a sewage treatment process In order to improve the working efficiency of the reaction sedimentation tank and strengthen the purification effect of the reaction sedimentation tank, people have developed a variety of improved reaction sedimentation tanks. [0003] For example, a reaction sedimentation tank disclosed in Chinese patent CN201620836242.9 includes a water storage tank, a water outlet pipe, a mud storage bucket, a water distribution pump, a sedimentation tank,...

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Problems solved by technology

[0004] However, this solution still has the following disadvantages: since the alum sediment cannot be separated, a filter tank must be installed after the reaction sedimentation tank, which increases the floor area and investment cost, and the degree of automation is low, so it cannot be adaptively adjusted according to the reaction conditions in the water. dosing

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