An industrial sewage treatment system

Abstract

The invention discloses an industrial waste water processing system. The industrial waste water processing system comprises a waste water storage tank, a waste water pipeline, a control valve, a chemical pump, a MVR evaporation system, and a recycled water storage tank; the MVR evaporation system comprises an evaporator and a compressor; heat pump technology is adopted to transform heat energy of condensed water to soft water in a hot water tank as an auxiliary heat source of the evaporator; an evaporation zone is connected with a vacuum pump; a discharge port of the evaporator is connected with a negative pressure discharging mechanism so as to guarantee system continuous feeding and continuous discharging. The industrial waste water processing system is capable of reducing the size of the evaporator and the size of a heat exchanger; the evaporator is connected with a chemical pump forced circulation via external connection, so that stirring power is reduced greatly; and at the same time, sinking and crystallization of concentrated waste water are realized, and continuous waste material discharging is realized; latent heat of condensed water is fully used; maximum energy utilization is realized; waste water harmless treatment is realized, and at the same time treatment cost is reduced as far as possible; and the processing process is automatic, continuous, and controllable.

Description

technical field [0001] The invention belongs to the field of environmental protection, and in particular relates to an industrial sewage treatment system. Background technique [0002] There are many kinds of existing industrial sewage treatment technologies, 1, chemical neutralization method, this method is easy to produce new pollution, and the effect on a large amount of sewage with high COD content is not obvious. 2. Biodegradation method, this method is a better method, but this treatment method takes up too much land, and it is difficult to be promoted in the case of Chinese cities or suburbs where every inch of land is very expensive. 3. Sewage evaporation and solidification method. This method is a relatively new process. By evaporating sewage, solidifying the concentrated sewage, separating useful salt, and incinerating useless solid waste at high temperature or deep burial, this One category of processing methods is further divided into the following categories: ...

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Problems solved by technology

[0002] There are many kinds of existing industrial sewage treatment technologies, 1, chemical neutralization method, this method is easy to produce new pollution, and the effect on a large amount of sewage with high COD content is not obvious

2. Biodegradation method, this method is a better method, but this method takes up too much land, and it is difficult to be promoted in the case of Chinese cities or suburbs where every inch of land is expensive

[0006] The existing sewage treatment equipment manufactured by MVR technology has the following disadvantages: 1. Continuous production is not possible; 2. The sewage in the evaporator is driven by the agitator to circulate in order to obtain heat in the heat exchanger, the stirring power is large, and the concentrated salt The time of precipitation and crystallization cannot be obtained; 3. There is still a large amount of heat energy in the condensed reclaimed water that has not been utilized and is directly discharged, resulting in a waste of energy

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