Slurry concentration tank floating foam cleaning device

Abstract

The invention provides a slurry concentration tank floating foam cleaning device, which belongs to the technical field of cement slurry treatment. The device comprises a material leakage hopper, a material discharging pipe, a negative pressure pipe and an adjusting mechanism, the large-caliber end of the leakage hopper is coplanar with the liquid level of cement paste, and the small-caliber end ofthe leakage hopper is immersed into the cement paste; the feeding end of the discharging pipe is communicated with the small-caliber end of the leakage hopper, and the discharging end of the discharging pipe penetrates through the side wall of a concentration tank; one end of the negative pressure pipe is communicated with an air blower and the other end of the negative pressure pipe is communicated with a filter press, and the side wall of the negative pressure pipe is communicated with the discharging end of the material discharging pipe; the adjusting mechanism is connected with the leakage hopper and is used for adjusting the position of the leakage hopper in the concentration tank. According to the floating foam cleaning device of the slurry concentration tank, floating foam in the material leaking hopper is sucked into the negative pressure pipe through the discharging pipe and enters the filter press under the driving of air flow in the negative pressure pipe, the floating foamremoving speed is high, the residence time of the floating foam above the cement slurry level is shortened, and the floating foam is prevented from hardening in the concentration pipe; and the supernatant separated from the cement paste can smoothly flow out from an overflow port of the concentration tank.

Description

technical field [0001] The invention belongs to the technical field of cement slurry treatment, and more specifically relates to a foam cleaning device for a slurry thickening tank. Background technique [0002] The inner wall of the centrifugal ductile iron pipe adopts cement lining for anticorrosion. The cement lining mainly adopts centrifugal method to make the cement tightly adhere to the inner wall. During this process, a small amount of active cement slurry will be produced; the cement lining is cured by steam. The method makes the cement reach a certain strength. Since the cement lining needs to be smooth and flat, water grinding is required. During the water grinding process, a large amount of deactivated cement slurry will be produced; The cement slurry cannot be discharged directly, and needs to be treated in a harmless manner. [0003] During the cement slurry treatment process, the cement slurry is discharged into the thickening tank for solid-liquid separation,...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a foam cleaning device for a mud concentration tank, aiming to solve the technical problem that the foam generated by the cement slurry in the concentration tank is not easy to clean

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