Method for treating waste water by using mechanical-compression evaporating crystallizer system
A mechanical compression evaporation and waste water treatment technology, applied in chemical instruments and methods, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve the problem of no boiler, etc., to meet the requirements of circular economy and low energy consumption Effect
Inactive Publication Date: 2015-07-08
无锡经略科技发展有限公司
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Problems solved by technology
[0008] Since most oil wells are built in the open air without boilers, cooling water and other public facilities, only electricity can be used
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[0024] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited.
[0025] Such as figure 1 As shown, the mechanical compression evaporation crystallization system includes a storage tank 1, a balance tank 2, a tubular preheater 3, a condensed water tank 4, an evaporation separation crystallizer, and a centrifuge 5. The outlet of the storage tank 1 passes through the pipeline Connect with the inlet of balance tank 2, the outlet of balance tank 2 is connected with the inlet of tubular preheater 3 through pipeline, described evaporative separation crystallization device is made up of evaporative separation crystallizer 7, heater 8, mechanical Composed of a compressor 9 and a forced circulation axial flow pump 10, the input end of the forced circulation axial flow pump 10 is respectively connected to the discharge port of the tubular preheater 3 ...
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The invention provides a method for treating waste water by using a mechanical-compression evaporating crystallizer system and belongs to the technical field of industrial waste water treatment. According to the invention, the storage pot of the mechanical-compression evaporating crystallizer system is connected with a balance pot; the balance pot is connected with a tubular preheater; the tubular preheater is connected with an evaporating-separating-crystallizing device and a condensate water pot; the evaporating-separating-crystallizing device is connected with a centrifugal separator; and the centrifugal separator is connected with the storage pot. The treating method comprises the following steps of: pumping the pretreated waste water into the storage pot, and guiding the waste water to enter the balance pot for buffering and then to a heat exchanger for heat exchange; after the temperature of the material is increased by 5-8 DEG C, evaporating and crystallizing the material in the evaporating separating crystallizer; separating the crystal mush at a high speed in a centrifuge, and finally returning the saturated solution separated out to the evaporating crystallizer system for evaporation and packaging the solid particles separated out. The method provided by the invention is capable of achieving the effects of zero emission, recycling economy and waste utilization stipulated by the state; the distilled water evaporated out is up to the state level-1 emission standard.
Description
technical field [0001] The invention belongs to the technical field of industrial waste water treatment, and relates to a method for treating waste water by using a mechanical compression evaporation crystallizer system. Background technique [0002] Drilling wastewater is the product of drilling fluid, production fluid, groundwater or crude oil mixed with production anhydrous. Its composition, properties and hazards are related to the type of drilling fluid and the composition of treatment agents. The main sources include mechanical sewage, flushing sewage, drilling fluid Sewage, operational sewage (sewage generated from downhole operations such as cementing, fracturing and acidification, workover, and well washing). Drilling sewage and waste mud in oil and gas fields have become the main sources of pollution in the oil and gas industry. If these pollutants are not effectively treated, they will pollute the soil, surface and groundwater, and cause serious impact and damage...
Claims
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IPC IPC(8): C02F9/14
Inventor 孙国梁
Owner 无锡经略科技发展有限公司