Pretreatment equipment for water purification

Abstract

The invention discloses pretreatment equipment for water purification. The pretreatment equipment comprises a casing, an inlet and an outlet formed in the casing, and further comprises an inlet water mixer arranged at the front end of the casing, a flocculation filling opening formed in the inlet water mixer, and a horizontal water distributor arranged between the inlet water mixer and the casing, wherein a plurality of multi-box areas which are communicated with one another are arranged in the casing; the multi-box areas comprise a cone depression area positioned at the lowermost part, a water outlet area positioned at the uppermost part, and a flotation filtering area positioned between the water outlet area and the depression area; a combined filtering layer is arranged in the flotation filtering area; the pretreatment equipment further comprises horizontal water outlet weir plates at the beads of the multi-box areas, floating foam lateral flow openings formed in one sides of the horizontal water outlet weir plates in lower positions, blow-off pipes connected with the floating foam lateral flow openings, and lateral flow blow-down control valves, check valves and vapor pressure backflushing devices arranged on the blow-off pipes. The pretreatment equipment belongs to a technical improvement integrating multiple functions, such as flocculation mixing, mechanical filtering, flotation and defoaming, of universal water purification pretreatment equipment, and is low in cost and high in water purification efficiency.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a water purification pretreatment equipment. Background technique [0002] Water purification treatment pre-treatment equipment is currently widely used in industrial water and production water. For example, various filters in the pre-pretreatment stage of the reverse osmosis treatment system are mainly used to remove suspended solids, large particles, impurities, etc. in the water, and play a role in protecting the reverse osmosis system. Basically, it is a single filter with many consumables, large volume, low efficiency and high investment. Moreover, the water consumption of regeneration or recoil is too large, and the operation and control are bothersome. Insufficient refinement, rigid workmanship and other deficiencies. [0003] In addition, the existing technology has poor flocculation ability for water. For example, a water inlet mixer for wastewater treatment facilities...

AI Technical Summary

Problems solved by technology

It is basically a single filter and there are many consumables, large volume, low efficiency and high investment

Moreover, the water consumption of regeneration or recoil is too large, and the operation and control are cumbersome

Insufficient refinement, rigid workmanship and other deficiencies

[0003] In addition, the existing technology has poor flocculation ability for water. For example, a water inlet mixer for wastewater treatment facilities published by the application number CN201220072085.0 relies on the planar flow diversion of the baffle to increase the flocculation ability, and the effect is not good.

Images