Reinforced rotational-flow sand setting tank

Abstract

The invention relates to a reinforced rotational-flow sand setting tank which comprises a tank body, wherein a water inlet pipe and a water outlet pipe are arranged at the upper part of the tank body;a water inlet and a water outlet are formed at the joints between the water inlet pipe and the water outlet pipe and the tank body respectively; the water outlet pipe passes through an inner cylinderand extends into the inner cylinder; a manhole is formed in the lower part of the tank body; the inner cylinder, an annular sloping plate and a fair water cap are arranged in the tank body from top to bottom; a flow guide plate is arranged between the inner cylinder and the tank body; the flow guide plate is of a spiral shape; one end of the flow guide plate is located above the water inlet, andthe other end clings to the lower side of the cross-pipe outer wall of the water outlet pipe; the two sides of the flow guide plate clings to the outer wall of the inner cylinder and the inner wall ofthe outer cylinder respectively; a bottom opening is formed in the inner cylinder and the annular sloping plate respectively; the bottom of the inner cylinder extends into the inner side of the annular sloping plate and reaches the lower middle part of the annular sloping plate; the fair water cap extends into the annular sloping plate through the bottom opening of the annular sloping plate; andthe bottom of the inner cylinder is located above the fair water cap. The reinforced rotational-flow sand setting tank has an advantage that high head pressure or power equipment is not required.

Description

technical field [0001] The invention relates to a water treatment device, in particular to an enhanced cyclone grit chamber. Background technique [0002] At present, there are three main forms and deformations of cyclone grit chambers or ponds used in sewage treatment: Zhong's grit chamber, Bi's grit chamber, and cyclone desander. [0003] The bell-type grit chamber is a grit chamber that uses mechanical force to control the flow pattern and velocity of water, accelerates sand precipitation, and allows organic matter to be taken away with water flow. The waste water flows into the sand settling area from the inlet along the tangential direction, and the motor and transmission device are used to drive the turntable and slope blades. Due to the difference in the centrifugal force, the sand particles are thrown to the pool wall and fall into the sand bucket, and the organic matter is sent back to the waste water. . Adjust the speed to achieve the best sanding effect. Sand s...

AI Technical Summary

Problems solved by technology

[0005] The above-mentioned Zhong’s and Bi’s grit chambers require power equipment and power consumption during operation; power equipment and internal blades and other rotating equipment need regular maintenance or repair during long-term use; the direction of the water outlet of Zhong’s grit chamber is restricted

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