Intellectual center driving mono-tube soil sucker

A technology of central drive and suction machine, which is applied to the feeding/discharging device, chemical instrument and method, and separation method of the settling tank. Low-level problems, to achieve the effect of reducing sludge return flow, reducing return flow, and reducing energy consumption

Inactive Publication Date: 2008-11-19
GUANGZHOU NEWEARTH ENVIRONMENTAL PROTECTION IND
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The use of reflux ratio is an extensive control method, because the water volume of the sewage treatment plant is constantly changing during the operation process, and because the growth of sludge, that is, microorganisms, requires a certain time and process, it leads to changes in water volume and sludge The change of concentration is not corresponding in real time, but there is a certain lag in time. Therefore, simply relying on the change of water volume to adjust the amount of return sludge will lead to a low concentration of return sludge and a large range of changes, which will affect the biochemical pool. The stable operation of the system has a certain impact, and increases the energy consumption of the reflux system

Method used

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  • Intellectual center driving mono-tube soil sucker
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  • Intellectual center driving mono-tube soil sucker

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Embodiment 1

[0021] As shown in accompanying drawing 1, it is the structural representation of intelligent central transmission single-pipe dredger of the present invention, and this intelligent central transmission single-pipe dredger is provided with driving mechanism 2, rotating cage 4, collecting tank 13 places. The mud tank 5, the truss 6, the mud suction pipe 7, the mud discharge pipe 14, the mud discharge valve 11, the electric actuator 10, the sludge concentration signal acquisition device 8 and the controller 9, wherein the driving mechanism 2 is set in the middle of the sedimentation tank 13 At the top of the center column 3, the tumbler 4 is set on the outer periphery of the center column 3, and the mud collection tube 5 is set on the center column 3 at the bottom of the tumbler 4, which is connected to the mud suction pipe 7, and the fan-shaped well and the mud discharge pipe 14 are passed inside. Communication, the mud discharge pipe 14 communicates with the mud discharge well ...

Embodiment 2

[0033] The structure of the intelligent central drive single-pipe dredger in this embodiment is the same as that in Embodiment 1, and will not be repeated here. The difference lies in the control mode of the controller. Specifically, in this embodiment, two concentration values ​​C are selected according to the control range of the sludge concentration required by the system. 1 、C 2 (C 1 >C 2 ), respectively as the upper limit and the lower limit of the control range, the sludge concentration signal value C collected by the sludge concentration signal acquisition device 8 is respectively compared with the upper limit value C 1 and the lower limit C 2 Comparison, control the opening of the sludge discharge valve 11 according to the comparison result, and control the electric actuator to adjust the opening of the sludge discharge valve when the sludge concentration signal value C is located at the concentration upper limit value C 1 and the concentration lower limit C 2 rem...

Embodiment 3

[0041] The structure of the intelligent central drive single-pipe dredger in this embodiment is the same as that in Embodiment 1, and will not be repeated here. The difference lies in the control mode of the controller. Specifically, in this embodiment, two concentration values ​​C are selected according to the control range of the sludge concentration required by the system. 1 、C 2 (C 1 >C 2 ), respectively as the upper limit and lower limit of the control range, and at the same time in order to increase the safety of the system, increase the concentration upper limit alarm value C max and concentration lower limit alarm value C min , the sludge concentration signal value C collected by the sludge concentration signal acquisition device 8 is respectively compared with C 1 、C 2 、C max and C min , compare, and determine the opening degree of the mud discharge valve 11 according to the comparison result, and determine whether to activate the alarm signal at the same time....

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Abstract

The invention discloses an intelligent center-drive single-pipe suction dredge comprising a sludge concentration signal acquisition device, a controller, an electric actuating mechanism and a sludge discharge valve which is arranged in a sludge discharge channel, wherein, the sludge concentration signal acquisition device is used for acquiring the sludge concentration state in an acquisition sludge discharge well and outputting a sludge concentration signal into the controller, and the controller is used for judging the sludge concentration state and controlling the electric actuating mechanism to regulate the opening degree of the sludge discharge valve to be directly proportional to the sludge concentration signal. The intelligent central transmission single pipe suction dredge has the advantages that the intelligent center-drive single-pipe suction dredge changes the traditional control mode of artificially regulating the sludge discharge valve to regulate the sludge discharge amount, thereby allowing the operation of a system to be more in line with the dynamic changing law; and the intelligent center-drive single-pipe suction dredge realizes the purpose of stabilizing the sludge discharge concentration within a higher scope of 10 to 12g/L, thereby lowering the return sludge volume of a biochemical system and reducing the energy consumption of a sludge return system by 30 to 50 percent, and the energy consumption of a whole municipal sewage treatment plant can even be reduced by about 2 to 4 percent.

Description

technical field [0001] The invention belongs to the field of sewage treatment, in particular to a mechanical sludge discharge device for sedimentation tanks of urban domestic sewage treatment plants and industrial wastewater treatment plants. Background technique [0002] The sedimentation tank sludge removal machinery of urban domestic sewage treatment plants has been developed for more than half a century from the 1950s to the present. Its development can be roughly divided into three stages: manual sludge discharge, mechanical sludge scraping and mechanical sludge suction. [0003] Manual sludge removal is cumbersome and prone to problems such as poor mud discharge and mud accumulation in the pool, which affects the water outlet effect; mechanical mud scraping is prone to sedimentation upturning, high moisture content in the discharged mud, and affected water quality; mechanical mud suction Compared with the previous two stages, it has made great progress. It has overcome...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D21/24B01D21/30
Inventor 夏志祥游建琼何金涛田兵建
Owner GUANGZHOU NEWEARTH ENVIRONMENTAL PROTECTION IND
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