A neutralization sedimentation tank

Abstract

The invention belongs to the field of environmental protection equipment and particularly relates to a neutralizing and settling pool. The neutralizing and settling pool comprises a pool body, the pool body is internally provided with a support, the support is provided with a center guide cylinder, the center guide cylinder is internally provided with a neutralizing tank, a first annular channel is arranged between the pool body and the center guide cylinder, a second annular channel is arranged between the center guide cylinder and the neutralizing tank, and the neutralizing tank is communicated with a waste water pipe and internally provided with a mixing device; an opening of the neutralizing tank is provided with a first weir plate, and the opening of the neutralizing tank is lower than the upper end of the center guide cylinder; a water outlet tank is formed in the pool body. The neutralizing and settling pool has the advantages that a plurality of sets of process equipment are integrally arranged, the quantity of equipment is reduced, equipment investment cost in the earlier stage is low, electricity consumption is lowered, energy is saved, emission is reduced, and the environment is protected; the occupied area is small, and production cost is lowered; neutralizing, mixing, settling and purifying effects are good; equipment reliability is high, and stability is good; installation and operation are simple, and the neutralizing and settling pool can be used for both a new and an old project; a PH detector and a self-control device can precisely control reactions, and medicament dosage is saved.

Description

technical field [0001] The invention belongs to the field of environmental protection equipment, and in particular relates to a neutralization sedimentation tank. Background technique [0002] At present, in the process of industrial sewage treatment, the wastewater is usually treated in the neutralization tank by acid-base neutralization method firstly, by adding alkaline substances (such as sodium hydroxide, sodium carbonate, quicklime, slaked lime, carbide slag, etc.) The acid reaction is stirred by a stirrer to make the pH value reach a uniform and suitable value. The neutralizing liquid overflows into the intermediate tank through the overflow pipe on the upper part, and an intermediate pump is installed on the bottom side of the intermediate tank, and the neutralizing liquid is pumped into the sedimentation tank through the intermediate pump for gravity separation and sedimentation, and finally separated and precipitated in the form of sludge At the bottom, the sludge...

AI Technical Summary

Problems solved by technology

If there is no intermediate pool, the pump is directly connected to the overflow pipe on the upper part of the neutralization pool, when the liquid level is lower than the overflow pipe, cavitation will occur and damage the pump, resulting in irreparable losses; therefore, the setting of the intermediate pool, is essential

[0003] Therefore, the existing neutralization and sedimentation equipment has a neutralization tank with agitator, an intermediate tank, an intermediate pump, and a sedimentation tank. Some systems even need liquid level gauges, sensors, interlocking devices, and automatic control systems; High investment cost, large floor area, large power consumption, complicated management, high production cost

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