CN213915419U

CN213915419U - Vertical shaft recovery system for landfill methane

Info

Publication number: CN213915419U
Application number: CN202022758503.9U
Authority: CN
Inventors: 周培俊
Original assignee: Baoji Yifei Mingda Power Development Co ltd
Current assignee: Baoji Yifei Mingda Power Development Co ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-08-10
Anticipated expiration: 2030-11-25

Abstract

The utility model discloses a shaft recovery system of landfill marsh gas, have the shaft of gas pocket including the lateral wall, wear to be equipped with the top in the shaft and stretch out the outer recovery person in charge of shaft, the outer wall equipartition that the recovery person in charge is located the shaft inside part has a plurality of inlet ports to the outer wall that is located the shaft outside part is equipped with the blast pipe at the recovery person in charge, still is equipped with in the shaft and beats and presses drainage device. The pressurizing drainage device comprises a drainage pipe and a pressurizing pipe which are arranged in the recycling main pipe in a penetrating mode at intervals, and two ends of the two pipes extend out of the recycling main pipe. The recovery system collects and recovers the methane generated by the garbage, discharges the sewage actively, increases the collection amount of the methane in the shaft, accelerates the treatment efficiency of the garbage, and reduces the burden of the whole urban garbage accumulation. Compared with the mode of pumping sewage, the mode of actively pressing and discharging the sewage at the bottom reduces the discharge of settled sand at the bottom, and avoids the problem that the normal recovery and treatment operation is influenced due to the blockage of the drainage pipe and the pump body caused by the settled sand.

Description

Vertical shaft recovery system for landfill methane

Technical Field

The utility model relates to a refuse treatment technical field especially relates to a shaft recovery system of landfill marsh gas.

Background

The waste has a large discharge amount, complex and various components and pollution, and if the waste cannot be properly treated, the environment is polluted and the production and living safety is damaged. The garbage disposal methods widely used today are sanitary landfills, high temperature composting and incineration. The garbage landfill mode can generate methane which can be recycled after being rotted after being piled and buried, and the methane is generated at different heights and is difficult to gather due to the large quantity of garbage piles. And a large amount of sewage is generated after the garbage is rotten, the storage space of the methane is influenced, so that the methane has high-pressure risk, the efficiency of generating the methane by the garbage is reduced, and the burden of the whole urban garbage accumulation is caused.

Disclosure of Invention

To the problems existing in the prior art, the utility model aims to provide a shaft recovery system of landfill marsh gas, which has a shaft, a recovery main pipe and a pressurizing drainage device. The recovery system collects and recovers the methane generated by the garbage, so that the garbage treatment efficiency is accelerated; the problem that the normal recovery and treatment operation is influenced due to blockage of the drainage pipe and the pump body caused by the settled sand is avoided.

In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a shaft recovery system of landfill marsh gas, includes that the lateral wall has the shaft of gas pocket, wear to be equipped with the top in the shaft and stretch out the outer recovery person in charge of the shaft, the outer wall equipartition that the recovery person in charge is located the shaft inside has a plurality of inlet ports to the outer wall that is located the shaft outside is being responsible for in the recovery is equipped with the blast pipe, still be equipped with in the shaft and suppress drainage device.

Preferably, the pressurizing drainage device comprises a drainage pipe and a pressurizing pipe which are arranged in the recovery main pipe in a penetrating mode at intervals, and two ends of the drainage pipe and the pressurizing pipe extend out of the recovery main pipe.

Preferably, the bottom end of the drain pipe is provided with a bell mouth, and the bottom end of the pressurizing pipe extends into the bell mouth.

Preferably, a supporting guide pipe for the pressurizing pipe is arranged in the recovery main pipe.

The utility model has the advantages that: (1) the recovery system collects and recovers the methane generated by the garbage, discharges the sewage actively, increases the collection amount of the methane in the shaft, accelerates the treatment efficiency of the garbage, and reduces the burden of the whole urban garbage accumulation. (2) Compared with the mode of pumping sewage, the mode of actively pressing and discharging the sewage at the bottom reduces the discharge of settled sand at the bottom, and avoids the problem that the normal recovery and treatment operation is influenced due to the blockage of the drainage pipe and the pump body caused by the settled sand.

Drawings

Fig. 1 is the overall structure schematic diagram of the recovery system of the present invention.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the following describes the technical solution of the present invention with reference to the accompanying drawings and embodiments.

Referring to fig. 1, the shaft recovery system for landfill gas comprises a shaft 1 with air holes on the side wall, and preferably, the shaft wall of the shaft 1 is built by stones, and gaps are formed among the stones and are identical to the air holes on the shaft wall of the shaft 1. Garbage is fully accumulated and buried on the outer wall of the vertical shaft 1, and methane generated by rotting enters the vertical shaft 1 through gaps of stones for recycling treatment. And a recovery main pipe 2 with the top end extending out of the shaft 1 is arranged in the shaft 1 in a penetrating manner, a plurality of air inlets 21 are uniformly distributed on the outer wall of the part, located in the shaft 1, of the recovery main pipe 2, and an exhaust pipe 3 is arranged on the outer wall, located in the part, outside the shaft 1, of the recovery main pipe 2. The marsh gas gathered in the well flows into the recovery main pipe 2 through the air inlet 21 and is discharged through the exhaust pipe 3 outside the recovery main pipe 2, and the valve 7 is arranged on the exhaust pipe 3 to control the discharged marsh gas. As the garbage is rotten to generate more sewage and is deposited in the well, the gas amount collected by gathering the methane in the well is influenced, a pressurizing drainage device is further arranged in the vertical shaft 1, the sewage is actively discharged by pressurizing the sewage in the well through the device, the gathering amount of the methane is increased, the treatment efficiency of the garbage is accelerated, and the burden of the whole urban garbage accumulation is reduced. Compared with the mode of pumping sewage, the mode of actively pressing and discharging the sewage at the bottom reduces the discharge of settled sand at the bottom, and avoids the problem that the normal recovery and treatment operation is influenced due to the blockage of the drainage pipe and the pump body caused by the settled sand.

Specifically, the pressurizing and draining device comprises a drain pipe 4 and a pressurizing pipe 5 which are arranged in the recovery main pipe 2 in a penetrating mode at intervals, and two ends of the drain pipe 4 and the pressurizing pipe 5 extend out of the recovery main pipe 2. When the installation, drain pipe 4 and the bottom of suppressing pipe 5 all stretch into in the sewage, suppress and let in high-pressure gas from the outside in the pipe 5, discharge sewage in drain pipe 4 to the outside collection of discharge well and handle, same drain pipe 4 outside is equipped with valve 7 and carries out the control of displacement.

Further, in order to quickly and effectively discharge sewage at the bottom of the well, the bottom end of the drainage pipe 4 is provided with a bell mouth 41, and the bottom end of the pressurizing pipe 5 extends into the bell mouth 41. This horn mouth 41 has great sewage and gets into the collection scope to directly suppress in to horn mouth 41 through suppressing pipe 5, will enter into the sewage of horn mouth 41 and suppress the discharge, have effectual suppression effect, and can be quick discharge sewage.

Since the pressure pipe 5 is generally made of a soft material, it is easily deflected by pressure during the pressure, and in order to solve this problem, a support guide pipe 6 for supporting the pressure pipe 5 is provided in the recovery main pipe 2. The pressurizing pipe 5 is limited through the supporting guide pipe 6, sewage is quickly and effectively pressurized and discharged, and the biogas recovery efficiency is accelerated.

The principle of the utility model is that: the recovery system collects and recovers the methane generated by the garbage, actively discharges the sewage, increases the collection amount of the methane in the vertical shaft 1, accelerates the garbage treatment efficiency and reduces the burden of the whole urban garbage accumulation. Compared with the mode of pumping sewage, the mode of actively pressing and discharging the sewage at the bottom reduces the discharge of settled sand at the bottom, and avoids the problem that the normal recovery and treatment operation is influenced due to the blockage of the drainage pipe and the pump body caused by the settled sand.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a shaft recovery system of landfill marsh gas, includes that the lateral wall has shaft (1) of gas pocket, wear to be equipped with the top in shaft (1) and stretch out shaft (1) outer recovery and be responsible for (2), the outer wall equipartition that recovery is responsible for (2) and is located shaft (1) inside part has a plurality of inlet ports (21) to be equipped with blast pipe (3) at the outer wall that recovery is responsible for (2) and is located shaft (1) outside part, still be equipped with in shaft (1) and suppress drainage device.

2. A vertical shaft recovery system for landfill biogas according to claim 1, wherein: the pressurizing and draining device comprises a drain pipe (4) and a pressurizing pipe (5) which are arranged in the recovery main pipe (2) in a penetrating mode at intervals, and two ends of the drain pipe and the pressurizing pipe extend out of the recovery main pipe (2).

3. A vertical shaft recovery system for landfill biogas according to claim 2, wherein: the bottom end of the drain pipe (4) is provided with a horn mouth (41), and the bottom end of the pressurizing pipe (5) extends into the horn mouth (41).

4. A vertical shaft recovery system for landfill biogas according to claim 3, wherein: and a supporting guide pipe (6) used for supporting the pressurizing pipe (5) is arranged in the recovery main pipe (2).