Sewage sand removal device

Abstract

The invention discloses a sewage sand removal device which comprises a sewage channel, and the sewage channel is provided with an arc-shaped corner; a sand removing water channel is formed in the inner ring side of the corner; a sand removing guide plate is mounted in the sand removing water channel; the sand removing guide plate comprises a horizontal flat plate laid at the bottom of the sand removing water channel and an inclined plate fixedly connected with the horizontal flat plate; the two sides of the sand removing guide plate are coupled with rotating rollers through supporting rods, and the rotating roller located at the top is connected with a rotating power device; two ends of the rotating roller are sleeved with sleeve locking pieces; and a sand scraping plate is fixed on the sleeve locking pieces. The sewage sand removal device is simple in structure, convenient to construct and small in occupied area, most silt in sewage can be effectively pretreated, and therefore the silt content in the sewage is effectively reduced when the water pump sucks the sewage, abrasion of sand grains to the pump shell is greatly reduced, and the silt filtering pressure in the treatment tankis reduced.

Description

technical field [0001] The invention belongs to the field of machinery, and in particular relates to a sewage desanding device. Background technique [0002] Fine sand is needed in the ceramic production process, and the product is formulated according to the formula and matched with grinding, pulverizing, and brick forming, and then calcined at high temperature to reach the inorganic material ceramics with a Mohs hardness of 5-7. And its production process needs to go through many times of polishing and grinding, edging, and then flushing, resulting in the waste water in the ceramic production process containing a lot of solid substances such as fine sand. At present, in sewage treatment, it is usually necessary to pump the wastewater into the wastewater treatment tank for treatment. When the excessive sand content in the wastewater enters the water pump, the principle of the water pump is to rotate at high speed through the impeller to drive the liquid to rotate with the b...

AI Technical Summary

Problems solved by technology

When the water contains sand grains from the lintel, the sand grains will rub against the pump casing, and the pump casing will be worn out soon, resulting in a very short service life of the pump.

However, if the sedimentation tank is set up for pre-sedimentation, the required area is too large, which will occupy a large amount of production space in the factory.

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