Mud throwing spoon for air-floatation water purifier

Abstract

The invention relates to a mud throwing spoon for an air-floatation water purifier. The mud throwing spoon is characterized in that: two leaf blades which are rolled into the shapes of half-cone tabletops are arranged in a centrally symmetrical manner, rotating traces of the two leaf blades present the shapes of cone tables, a casting angle Beta is formed between each leaf blade and the rotating trace thereof, and an angle Gamma is formed between the long edges of the two leaf blades; small end sockets are arranged at the small ends of the leaf blades, and large end sockets are arranged at the large ends; round holes are arranged in the centers of the small end sockets of the leaf blades, a mud dropping pipe is communicated with the round holes, and a supporting wheel raceway is arranged on the mud dropping pipe; a third rib plate which is located between the two leaf blades is arranged along the diameter direction of the round holes on the small end sockets; second rib plates are respectively arranged at the upper end lower ends of the third rib plate, a first rib plate is connected with the second rib plates, and the second rib plates and the third rib plate are arranged along the circumferential direction of the round holes on the small end sockets. The mud throwing spoon can greatly reduce not only the volume of a water collecting tank, but also the civil engineering investment and the occupied area.

Description

technical field [0001] The invention relates to sewage treatment equipment, in particular to a mud skimmer used for an air flotation water purifier. Background technique [0002] In the air flotation water purifier, the flotation body continuously floats up and gradually concentrates near the water surface of the pool to form scum (sludge). The scum must be removed in time, so it is necessary to set up a slag discharge device. So far, the traditional rectangular air flotation water purifiers in China have been using chain-type mud pushers - weir-type slag discharge devices, see figure 1 . [0003] The working principle of this slag discharge device is as follows: [0004] One end of the rectangular pool body 18 of the water purifier is provided with a sludge bucket 22 (the vast majority is arranged at an end of the water purifier outlet), and the sludge bucket 22 is separated from the water body in the pool body 18 by a weir plate 23 . The chain type mud pusher 19 utiliz...

AI Technical Summary

Problems solved by technology

[0005] The continuous change of the water level in the water purifier pool will make the work of this slag discharge device very unstable: when the water level is too low, the scum cannot be removed in time; and when the water level is higher than the plane of the weir plate, the water will overflow into the Sludge hopper, which significantly reduces the solid content of the treated sludge

[0006] In order to ensure that the water level in the water purifier pool is basically stable, it is necessary to greatly increase the volume of the sump to buffer the change in water volume, and to control the change of the water level in the sump within a certain range, thus increasing the investment in civil engineering and the occupied area.

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