A filter and purification device for chemical wastewater treatment

Abstract

The invention discloses a filtration and purification device for chemical wastewater treatment, which mainly includes an outer frame, a bidirectional pump, a side shell, a motor, a filter block, a stirring frame, a packing frame and a material pipe, and the inner upper part of the outer frame is fixedly installed with The first inner shell, the left and right symmetrical bottom frame is fixedly installed on the lower part of the inner side of the first inner shell, the top of the bottom frame is plugged with a packing frame, the middle part of the packing frame is plugged with a material tube, and the outer middle part of the material tube is fixedly installed with a limit sleeve. A connecting plate is fixedly installed on the outer wall of the bit sleeve. The present invention has a reasonable structural design, the circulating water fully contacts with the filler, avoids the accumulation of impurities in the waste water on the surface of the filler, and ensures the reaction efficiency. It is convenient and fast; and electrolysis and sedimentation are carried out separately to prevent flocs from accumulating on the surface of the filler, improve the degree and speed of purification in the later stage, and improve the uniformity of mixing through the stirring frame, and the reaction speed is fast.

Description

technical field [0001] The invention relates to sewage treatment equipment, in particular to a filter and purification device for chemical waste water treatment. Background technique [0002] Chemical wastewater refers to the wastewater produced in the process of producing products in chemical plants, such as the oily wastewater produced in the production of ethylene, polyethylene, rubber, polyester, methanol, ethylene glycol, oil tank farms, air separation and air compressor stations, etc. After biochemical treatment, it can generally meet the national secondary discharge standard. Due to the shortage of water resources, the water that meets the discharge standard needs to be further treated to meet the recycling requirements of industrial water replenishment. Since the impurities in the water are mainly suspended particles and fine hair fibers, the impurities are removed by using the principle of mechanical filtration and microporous filtration technology. The working sta...

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Problems solved by technology

[0003] Most of the existing chemical wastewater treatment equipment uses chemical sedimentation, flocculant coagulation, biological sedimentation, etc., but before treatment, most of them need to be treated with micro-electrolysis to facilitate later filtration and treatment, and improve the degree and speed of later purification. The speed of the existing equipment is slow, and the internal layout is unreasonable. Alkali flocculation is directly carried out at the electrolysis position, so that the dust on the surface of the electrolysis feeding will affect the normal use

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