CN-121974476-A - Non-point source pollution control device based on clear water network

CN121974476ACN 121974476 ACN121974476 ACN 121974476ACN-121974476-A

Abstract

The invention discloses a non-point source pollution control device based on a clean water network, which relates to the technical field of pollution control devices and comprises a tank body, wherein a partition body is arranged in the tank body, the partition body divides the tank body from top to bottom to form an air inlet cavity and a stirring cavity, an air inlet is arranged on the outer wall of the tank body, the stirring mechanism comprises a stirring shaft and a stirring driving part, the stirring shaft sequentially penetrates through the top wall of the tank body, the air inlet cavity and the partition body and extends into the stirring cavity, the stirring driving part is connected with the stirring shaft, a gas transmission channel is arranged in the stirring shaft, a rotary gas supply mechanism is arranged in the stirring shaft, the stirring shaft drives a rotary power input end of the rotary gas supply mechanism to rotate, so that the rotary gas supply mechanism is pumped from the air inlet cavity and pressurized to be discharged into the gas transmission channel, an air injection stirring pipe is positioned in the stirring cavity and fixed at the lower end part of the stirring shaft, and an air injection port communicated with the gas transmission channel is arranged on the outer wall of the air injection stirring pipe. The invention can improve the mixing efficiency of ozone and the polluted liquid and realize the linkage control of stirring driving and ozone supply.

Inventors

GE XIANGYANG
CAO LIANG
QIAO ZIXU
HAN SIYUAN
LI HONGXIA
MA YAN
ZHANG ZENGBAO
GE NAN
SUN LIXIN
CHEN YUXIN
Nie dongsheng
ZHANG RUIJIE
WANG KUN
QUAN QIANG
LU HAIYUAN

Assignees

水利部牧区水利科学研究所

Dates

Publication Date: 20260505
Application Date: 20260331

Claims (10)

1. A non-point source pollution control device based on a clear water network, which is characterized by comprising: The device comprises a tank body (1), wherein a separation body (11) is arranged in the inner cavity of the tank body (1), the separation body (11) divides the inner cavity of the tank body (1) from top to bottom to form an air inlet cavity (12) and a stirring cavity (13), and an air inlet (14) capable of inputting ozone into the air inlet cavity (12) is arranged on the outer wall of the tank body (1); The stirring mechanism (2) comprises a stirring shaft (21) and a stirring driving part (22), wherein the lower end part of the stirring shaft (21) sequentially penetrates through the top wall of the tank body (1), the air inlet cavity (12) and the partition body (11) from top to bottom and extends into the stirring cavity (13), the stirring driving part (22) is in transmission connection with the stirring shaft (21) to drive the stirring shaft to rotate, and a gas transmission channel (211) is arranged in the stirring shaft (21) along the axial direction of the stirring shaft; The stirring shaft (21) is in transmission connection with a rotary power input end of the rotary air supply mechanism (3) to drive the rotary air supply mechanism (3) to rotate, so that the rotary air supply mechanism (3) can suck air from the air inlet cavity (12) and is pressurized and discharged into the air transmission channel (211); The air injection stirring pipe (4), the air injection stirring pipe (4) is arranged in the stirring cavity (13) and fixed at the lower end part of the stirring shaft (21), and an air jet (41) communicated with the air transmission channel (211) is arranged on the outer wall of the air injection stirring pipe (4).
2. The non-point source pollution control device based on the clean water grid according to claim 1, wherein the rotary air supply mechanism (3) comprises an air cylinder assembly and a driving block (34), and the air cylinder assembly comprises a cylinder body (31), a piston plate (32), a piston rod (33), a first check valve (35) and a second check valve (36); The cylinder body (31) is positioned in the air inlet cavity (12) and is fixed on the peripheral wall of the stirring shaft (21), a sliding cavity (311) is formed in the cylinder body (31) along the radial direction of the stirring shaft (21), the piston plate (32) is connected in the sliding cavity (311) in a sliding and sealing mode, the piston rod (33) is positioned on one side, away from the stirring shaft (21), of the piston plate (32) and one end of the piston rod is fixed on the piston plate (32), and the other end of the piston rod (33) movably penetrates through the peripheral wall of the cylinder body (31) and extends into the air inlet cavity (12); An air extraction opening (312) communicated with the air inlet cavity (12) is formed in one side, close to the stirring shaft (21), of the top surface of the cylinder body (31), an air outlet (3111) communicated with the air transmission channel (211) is formed in the side wall, close to the stirring shaft (21), of the sliding cavity (311), the one-way valve I (35) is arranged at the air extraction opening (312) and allows circulation in the direction from the air inlet cavity (12) to the sliding cavity (311), and the one-way valve II (36) is arranged at the air outlet (3111) and allows circulation in the direction from the sliding cavity (311) to the air transmission channel (211); The driving block (34) is fixed on the inner peripheral wall of the air inlet cavity (12) and can abut against the other end of the piston rod (33) to drive the piston rod to move, so that the piston plate (32) is driven to move to carry out air compression.
3. The non-point source pollution control device based on the clean water grid according to claim 2, wherein the cylinder assembly further comprises a roller (37), and the roller (37) is arranged at the other end of the piston rod (33) and axially parallel to the stirring shaft (21).
4. The non-point source pollution control device based on the clean water network according to claim 2 is characterized in that the cylinder assemblies are multiple groups, and the multiple groups of cylinder assemblies are uniformly distributed along the circumferential direction of the stirring shaft (21).
5. The non-point source pollution control device based on the clean water network according to claim 4, wherein the cylinder bodies (31) of the cylinder assemblies are integrally connected to form an annular cylinder body, and the annular cylinder body is coaxially sleeved and fixed on the stirring shaft (21).
6. The non-point source pollution control device based on a clean water grid according to claim 4, wherein the number of the driving blocks (34) is the same as the number of the cylinder assemblies, and the driving blocks (34) are uniformly distributed along the inner peripheral wall of the air inlet cavity (12).
7. The non-point source pollution control device based on the clean water network according to claim 1, wherein the air injection stirring pipe (4) is fixed at the lower end part of the stirring shaft (21) and is communicated with the air transmission channel (211), the air injection stirring pipe (4) extends along the radial direction of the stirring shaft (21), a plurality of air injection ports (41) communicated with the pipe cavity of the air injection stirring pipe (4) are arranged on the peripheral wall of the air injection stirring pipe (4), and the air injection ports (41) are arranged at intervals along the length direction of the air injection stirring pipe (4).
8. The non-point source pollution control device based on the clean water grid according to claim 7, wherein the stirring mechanism (2) further comprises a stirring paddle (23), and the stirring paddle (23) is positioned in the stirring cavity (13) and fixed on the peripheral wall of the stirring shaft (21) and positioned above the air injection stirring pipe (4).
9. The non-point source pollution control device based on the clean water network according to claim 1, further comprising a filter assembly (5), wherein the filter assembly (5) comprises a filter box (51) and a filter plate (52), and a liquid inlet (15) is arranged on the peripheral wall of the tank body (1) corresponding to the top of the stirring cavity (13); The water outlet of the filter box (51) is communicated with the liquid inlet (15), and the filter plate (52) is detachably connected in the inner cavity of the filter box (51) and corresponds to the space between the water inlet and the water outlet of the filter box (51).
10. The non-point source pollution control device based on the clean water network according to claim 9, wherein the filter box (51) is fixedly connected to the outer peripheral wall of the tank body (1) and the water outlet of the filter box is correspondingly communicated with the liquid inlet (15), the water inlet is formed in the side wall, far away from the tank body (1), of the filter box (51), an inserting through hole (511) is formed in the middle of the top surface of the filter box (51), the lower portion of the filter plate (52) can penetrate through the inserting through hole (511) and is detachably mounted on the filter box (51), and the upper portion of the filter plate (52) can seal the inserting through hole (511).

Description

Non-point source pollution control device based on clear water network Technical Field The invention relates to the technical field of pollution control devices, in particular to a non-point source pollution control device based on a clean water network. Background The clean water network technology is one of the important means for comprehensively treating the pollution of the current river basin. The prior art mainly integrates rural domestic sewage treatment technology, rural solid waste treatment technology and surface low-pollution water advanced treatment technology, integrates biological means such as physical high-performance environment filtering materials, environment biotechnology and the like by means of integration of various biological and ecological treatment technologies, comprehensively realizes comprehensive treatment of river basin pollution through various natural ecological treatment approaches such as a wetland ecosystem and the like, and has developed large-scale engineering demonstration. Specifically, the prior art adopts a series of technologies such as advanced treatment of urban sewage treatment plant effluent reaching the standard, river bank slope buffer interception and high-strength macroporous ecological slope protection materials by a composite biological ecological filter tank and an artificial wetland, and adopts a mode of researching and developing river, ditch, pond, creek and field networking to form a relatively perfect clean water network technology system. However, in practical application, the existing clean water network technology generally needs to use a combination of physical, chemical and biological methods for controlling the pollution of the surface source. In the joint treatment link of the physical method and the chemical method, the conventional treatment process is to adsorb the polluted liquid by using activated carbon and then oxidize the polluted liquid by using ozone. However, the existing ozone oxidation treatment device has obvious technical defects that most devices normally directly introduce ozone into the reaction cylinder during treatment, so that the ozone only contacts and reacts with the liquid surface of the polluted liquid, the gas-liquid contact area is limited, the mass transfer efficiency of the ozone is low, and the oxidation reaction efficiency of the polluted liquid is reduced. To solve this problem, some of the prior art have added stirring devices to provide better mixing of ozone with the contaminated liquid, but the stirring devices and ozone supply system are usually operated independently, and lack a linkage mechanism therebetween. The independent control mode not only increases the control complexity and energy consumption of the equipment, but also is difficult to realize accurate matching between the stirring intensity and the ozone adding amount, so that the oxidation treatment effect is unstable, and the synergistic purification efficiency of physical adsorption and chemical oxidation cannot be fully exerted. Therefore, how to provide a non-point source pollution control device based on a clean water grid, which can improve the mixing efficiency of ozone and pollution liquid, realize the linkage control of stirring driving and ozone supply, and improve the integration degree and treatment efficiency of non-point source pollution control is a problem to be solved by those skilled in the art. Disclosure of Invention In view of the above, the present invention provides a non-point source pollution control device based on a clean water network, which aims to solve at least one of the above technical problems. In order to achieve the above purpose, the present invention adopts the following technical scheme: The invention provides a non-point source pollution control device based on a clean water network, which comprises: the device comprises a tank body, a stirring cavity, a gas inlet and a stirring cavity, wherein a separator is arranged in the inner cavity of the tank body, and divides the inner cavity of the tank body from top to bottom to form the gas inlet and the stirring cavity; The stirring mechanism comprises a stirring shaft and a stirring driving part, wherein the lower end part of the stirring shaft sequentially penetrates through the top wall of the tank body, the air inlet cavity and the partition body from top to bottom and extends into the stirring cavity; The stirring shaft is in transmission connection with the rotary power input end of the rotary air supply mechanism to drive the rotary air supply mechanism to rotate, so that the rotary air supply mechanism can suck air from the air inlet cavity and is pressurized and discharged into the air transmission channel; The air injection stirring pipe is positioned in the stirring cavity and fixed at the lower end part of the stirring shaft, and an air injection port communicated with the air transmission channel is arranged on the outer wall of the air injection