CN-224226801-U - Exhaust device for bottom of oxidation pond

Abstract

The utility model relates to the technical field of sewage treatment, in particular to an exhaust device for the bottom of an oxidation pond. The anti-seepage device comprises an oxidation pond, wherein an anti-seepage film is paved on the pond bottom and the pond wall of the oxidation pond, the edge of the anti-seepage film is fixed through an anchoring groove arranged around the periphery of the pond edge of the oxidation pond, a cobble layer is paved on the pond bottom of the oxidation pond, the cobble layer is positioned below the anti-seepage film, an exhaust pipe is horizontally buried in the cobble layer, two ends of the exhaust pipe are connected with connecting pipes, and an exhaust hole is formed in the exhaust pipe. According to the utility model, the cobble layer is arranged at the bottom of the oxidation pond, and the exhaust pipe is horizontally arranged in the cobble layer, so that the gas generated at the bottom of the pond can be more efficiently collected and exhausted, the exhaust efficiency is improved, and the jacking damage to the impermeable membrane caused by the accumulation of the gas at the bottom of the pond can be effectively avoided.

Inventors

• LIN XINGUO
• Wen Haijie
• XIAO CHUNFA
• PAN JUNHONG
• HUANG YUNSI
• JIAN LIHENG
• LIANG XIUMIN
• ZHANG JIAFENG
• HE LINHAI
• ZHANG WEISHENG
• WANG GENGHUA
• HUANG ZHIJIAN
• Gu Ruhai
• WANG JIANQU
• ZENG XIQUAN
• YAN JUNDA
• LAI JIXIANG

Assignees

• 温氏食品集团股份有限公司

Dates

Publication Date

20260512

Application Date

20250604

Claims (10)

1. 1. A exhaust apparatus for oxidation pond bottom, its characterized in that, including oxidation pond (2), anti-seepage membrane (3) have been laid to the pond bottom and the pond wall of oxidation pond (2), the edge of anti-seepage membrane (3) is fixed through anchor ditch (7) around the setting of oxidation pond (2) pond limit week, cobble layer (5) have been laid at the pond bottom of oxidation pond (2), cobble layer (5) are located the below of anti-seepage membrane (3), blast pipe (4) have been buried to cobble layer (5) mid-level, the both ends of blast pipe (4) all are connected with connecting pipe (9), exhaust hole (8) have been seted up on blast pipe (4).
2. 2. An exhaust device for the bottom of an oxidation pond according to claim 1, characterized in that a nonwoven geotextile (6) is laid under the impermeable membrane (3), the nonwoven geotextile (6) being located above the cobble layer (5).
3. 3. An exhaust device for the bottom of an oxidation pond according to claim 1, characterized in that the outer surface of the exhaust pipe (4) is wrapped with geotextile, the geotextile having a cloth weight of 150g/m2.
4. 4. An exhaust device for the bottom of an oxidation pond according to claim 1, characterized in that the exhaust pipes (4) are provided in a plurality, and that the exhaust pipes (4) are parallel to each other and are evenly spaced apart.
5. 5. An exhaust device for the bottom of an oxidation pond according to claim 4, characterized in that the spacing between adjacent exhaust pipes (4) is 15m.
6. 6. An exhaust device for the bottom of an oxidation pond according to claim 1, characterized in that the cobble layer (5) is formed by uniformly spreading cobbles with a particle size of 20-40 mm.
7. 7. An exhaust device for the bottom of an oxidation pond according to claim 1, characterized in that the exhaust pipe (4) and the connecting pipe (9) are UPVC pipes.
8. 8. An exhaust device for the bottom of an oxidation pond according to claim 1, characterized in that the exhaust holes (8) on the exhaust pipe (4) are arranged in a quincuncial shape.
9. 9. An exhaust device for the bottom of an oxidation pond according to claim 2, characterized in that the impermeable membrane (3) is an HDPE double-smooth impermeable membrane and the nonwoven geotextile (6) is a spun-laced nonwoven geotextile.
10. 10. The exhaust device for the bottom of the oxidation pond according to claim 9, wherein the thickness of the HDPE double-smooth impermeable film is 1.0mm, and the cloth weight of the short-filament needled non-woven geotextile is 400g/m2.

Description

Exhaust device for bottom of oxidation pond Technical Field The utility model relates to the technical field of sewage treatment, in particular to an exhaust device for the bottom of an oxidation pond. Background In the field of sewage treatment, an oxidation pond is a common treatment facility, and during operation, various gases such as methane and the like are generated at the bottom of the pond due to factors such as microbial activities and the like. In order to ensure safe and stable operation of the oxidation pond, the jacking damage of the anti-seepage film at the bottom of the pond caused by the accumulation of the volume of the bottom gas of the pond (namely, the bubbling and floating of the anti-seepage film at the bottom of the pond caused by the accumulation of the volume of the bottom gas of the pond) is prevented, and the exhaust device plays an important role. The patent document with the bulletin number (CN 201620567646.2) discloses an exhaust device applied to the bottom of a pasture oxidation pond, which comprises a cushion layer, a foundation layer, a steel plate embedded part, an anti-seepage film, an exhaust pipe and a supporting pipe, wherein the anti-seepage film is paved at the bottom of the pond, the cushion layer and the foundation layer are arranged underground at the bottom of the pond, the foundation layer is arranged on the cushion layer, the steel plate embedded part is fixedly arranged at the upper part of the foundation layer, the bottom of the supporting pipe is fixedly connected with the steel plate embedded part, the exhaust pipe is sleeved outside the supporting pipe, the upper part of the exhaust pipe passes through the anti-seepage film to be above the water surface of the oxidation pond, the anti-seepage film is in sealing connection with the outer surface of the exhaust pipe, and the part of the exhaust pipe, which does not penetrate out of the anti-seepage film, is provided with ventilation holes. The exhaust device utilizes the support tube and the exhaust tube arranged at the bottom of the pond to exhaust the gas below the impermeable membrane through the exhaust hole of the exhaust tube, thereby solving the problem of bulge at the bottom of the oxidation pond. However, the exhaust pipe is arranged vertically at the bottom of the oxidation pond, and the vertical exhaust pipe can only exhaust the local gas around due to the limited gas collecting range, so that the gas generated in a large area at the bottom of the pond is difficult to collect efficiently, the exhaust efficiency is low, and the risk of accumulation of the gas at the bottom of the pond is still high. For this purpose, an exhaust device for the bottom of an oxidation pond is designed, which is used for providing a technical scheme for the technical problems. Disclosure of utility model In view of the foregoing, it is desirable to provide an exhaust device for an oxidation pond bottom, which is used for solving the technical problems set forth in the background art. In order to solve the technical problems, the utility model adopts the following technical scheme: The utility model provides an exhaust apparatus for at bottom of pond of oxidation pond, includes the pond of oxidation, the pond bottom of pond and the pond wall of pond of oxidation pond have laid the prevention of seepage membrane, the edge of prevention of seepage membrane is fixed through the anchor ditch that sets up around pond limit a week of oxidation pond, the cobble layer has been laid at the bottom of pond of oxidation pond, cobble layer is located the below of prevention of seepage membrane, the blast pipe has been buried to the level in the cobble layer, the both ends of blast pipe all are connected with the connecting pipe, the exhaust hole has been seted up on the blast pipe. As a preferred embodiment of the exhaust device for the bottom of the oxidation pond, a non-woven geotextile is laid below the impermeable membrane and is positioned above the cobble layer. As a preferred embodiment of the exhaust device for the pond bottom of the oxidation pond, the outer surface of the exhaust pipe is wrapped with geotextile, and the geotextile has a cloth weight of 150g/m < 2 >. As a preferred embodiment of the exhaust device for the pond bottom of the oxidation pond, a plurality of exhaust pipes are arranged, and the exhaust pipes are parallel to each other and are uniformly distributed at intervals. As a preferred embodiment of the exhaust device for the pond bottom of the oxidation pond, the distance between the adjacent exhaust pipes is 15m. As a preferred embodiment of the exhaust device for the bottom of the oxidation pond, the cobble layer is formed by uniformly paving cobbles with the particle size of 20-40 mm. As a preferred implementation mode of the exhaust device for the pond bottom of the oxidation pond, the exhaust pipe and the connecting pipe are UPVC pipes. As a preferred embodiment of the exhaust device for the pond b