Comprehensive reutilization system of heating boiler wastewater

Abstract

The invention provides a comprehensive reutilization system of heating boiler wastewater. The system comprises a wastewater collection tank; a precipitate filtering unit receiving the wastewater from the wastewater collection tank and carrying out precipitate filtering treatment of the wastewater, wherein the precipitate filtering unit comprises a precipitating pool positioned at the bottom of the precipitate filtering unit, an automatic alkali addition device positioned on the precipitate pool, a mixing pool positioned above the automatic alkali addition device and used for mixing alkali added wastewater with a medicine, and a water purifying pool positioned above the mixing pool; an automatic medicine device which is connected with the mixing pool and inputs the medicine to the mixing pool; and a concentrating pool for pumping clean water from a clean water pool. The comprehensive reutilization system has the advantages of wastewater recycle efficiency improvement and cost saving.

Description

technical field [0001] The invention relates to a novel waste water comprehensive reuse system for heating boilers. Background technique [0002] With the rapid development of industry, the types and quantities of wastewater have increased rapidly, and the pollution of water bodies has become increasingly widespread and serious, threatening human health and safety. For the protection of the environment, the treatment of industrial wastewater is more important than the treatment of urban sewage. Although the treatment of industrial wastewater started as early as the end of the 19th century, and a large number of experimental studies and production practices were carried out in the following half century, due to the complex composition and changeable nature of many industrial wastewater, there are still some technical problems that have not been completely resolved. . This is different from the urban sewage treatment where the technology has matured. [0003] For example, f...

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Problems solved by technology

[0003] For example, for pure heating coal-fired boilers, the wastewater produced is usually directly discharged after simple purification treatment. Due to the simple and extensive wastewater treatment process, the wastewater discharged from the factory area has certain phenomena of overheating and turbidity / chromaticity. , does not meet the corresponding environmental protection management requirements, and is not conducive to the maintenance of corporate image and affects the economic interests of the company

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