CN217765683U

CN217765683U - Safe collection device for hazardous gas in refuse landfill

Info

Publication number: CN217765683U
Application number: CN202221687154.9U
Authority: CN
Inventors: 秦绍兵; 秦梓航
Original assignee: Sinosteel Corp Wuhan Safety And Environmental Protection Research Institute Co ltd
Current assignee: Sinosteel Corp Wuhan Safety And Environmental Protection Research Institute Co ltd
Priority date: 2022-07-01
Filing date: 2022-07-01
Publication date: 2022-11-08
Anticipated expiration: 2032-07-01

Abstract

The utility model discloses a landfill dangerous gaseous safety collection system. The drilling (7) is arranged below the final covering (3) with the anti-seepage function; the protective cover plate (8) is arranged on the same plane of the ground surface of the drilling hole (7); the drill hole (7) is divided into a void layer (9), a bentonite or clay layer (4) and a gravel or filter material layer (6), and the porous pipe (5) is positioned on the bentonite or clay layer (4) and the gravel or filter material layer (6); the upper part of the porous pipe (5) is connected with a reducer union (2), a ball valve (1) is installed on the reducer union (2), and the ball valve (1) and the reducer union (2) are arranged in a gap layer (9). The utility model can effectively prevent the dangerous gas combustion and explosion caused by static electricity, spark and the like generated by improper material selection of the collecting device; the device can prevent the damage of the collecting device caused by operating equipment, vehicles, grass trimmers and the like, thereby preventing the accidents of human body casualty caused by inflammable and explosive and the leakage of toxic and harmful gases.

Description

Safe collection device for hazardous gas in refuse landfill

Technical Field

The utility model belongs to the technical field of hazardous gas gathers and detects, in particular to landfill hazardous gas safety collection system is applied to the collection and the detection of landfill inflammable and explosive, poisonous and harmful gas.

Background

Domestic garbage buried in domestic garbage landfill siteThere are a large number of organic substances, most of which are degraded by the action of microorganisms to produce a large amount of CH ₄ 、H ₂ S, CO and CO ₂ Landfill gas as a main component; the release of the gases has adverse effects on the surrounding environment of the refuse dump and generates great harm and threat to the health and safety of workers in the landfill site; in order to reduce the harm of the landfill gas to the environment, the landfill gas must be collected and then treated and comprehensively utilized.

The conventional garbage site dangerous gas collecting device comprises a drill hole 7, a ball valve 1, a reducing joint 2 and a perforated pipe 5, wherein the drill hole 7 is shown in the attached drawing 1 of the specification; the reducing joint 2 is an elbow, the ball valve 1 is installed on a horizontal straight pipe of the reducing joint elbow 2, the reducing joint 2 is connected with a porous pipe 5 through a vertical straight pipe, the upper part of the reducing joint 2 is arranged on the final covering 3 with the anti-seepage function, bentonite or a clay layer 4 is arranged in a drill hole 7, the lower part of the bentonite or the clay layer 4 is a backfilled gravel or a filter material layer 6, and the porous pipe 5 is positioned on the backfilled gravel or the filter material layer 6; the drilled hole 7 is located below the final covering 3 with impermeable function.

The existing device is easy to damage, and adopts a common ball valve, so that the risk of combustion explosion caused by leakage of dangerous gas, poisoning and suffocation accidents and combustion explosion of flammable and explosive gas caused by static electricity is higher.

Disclosure of Invention

The utility model discloses there are design defect and safe risk to current gaseous collection system and provide a landfill dangerous gaseous safety collection system.

The technical solution of the utility model is that: a safe collection device for hazardous gas in a refuse landfill comprises a drill hole and a porous pipe, wherein the drill hole is arranged below a final cover with an anti-seepage function and is positioned in refuse; the drilling hole is provided with a protective cover plate on the final covered plane with the anti-seepage function; the drill holes are divided into a void layer, bentonite or clay layer; the lower part of the bentonite or clay layer is a backfilled broken stone or a filter material layer, and the porous pipe is positioned in the bentonite or clay layer and the backfilled broken stone or the filter material layer; the upper part of the porous pipe is connected with a reducing joint, a ball valve is installed on the reducing joint, and the ball valve and the reducing joint are arranged in the gap layer.

According to the utility model discloses, the reducing joint is the conical duct.

According to the utility model discloses, the ball valve is explosion-proof ball valve.

The utility model has the beneficial technical effects that: the safe collecting device of the utility model is level with the earth surface, adopts anti-static and anti-explosion materials and accessories, adopts the cover plate to protect the orifice, and can effectively prevent the damage of running equipment and vehicles to the collecting device; the damage to the collecting device caused by the maintenance operation of the grass trimmer and other garbage dumps is prevented; the dangerous gas caused by static electricity, spark and the like generated by improper material selection of the collecting device is prevented from being combusted and exploded; the human casualty accident caused by the flammable and explosive and the leakage of toxic and harmful gas after the collection device is damaged is prevented.

Drawings

Fig. 1 is a structural diagram of a dangerous gas collecting device of a conventional refuse dump.

Fig. 2 is the utility model discloses a landfill dangerous gaseous safety collection system structure chart.

In the figure: 1-a ball valve; 2-a reducer union; 3-final covering with barrier function; 4-bentonite or clay layers; 5-a perforated pipe; 6-backfilling broken stones or filter materials; 7-drilling; 8-a protective cover plate; 9-void layer.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention. In addition, the technical features involved in the respective embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

A dangerous gas safety collection device for a refuse landfill comprises a drill hole 7 and a porous pipe 5, wherein the drill hole 7 is arranged below a final cover 3 with an anti-seepage function and is positioned in refuse; the drilling hole 7 is provided with a protective cover plate 8 on the plane of the final covering 3 with the function of seepage prevention; the drill hole 7 is divided into a void layer 9 and a bentonite or clay layer 4; the lower part of the bentonite or clay layer 4 is a backfilled gravel or filter material layer 6, and the porous pipe 5 is positioned on the bentonite or clay layer 4 and the backfilled gravel or filter material layer 6; the upper portion of the perforated pipe 5 is connected with a reducing joint 2, a ball valve 1 is installed on the reducing joint 2, and the ball valve 1 and the reducing joint 2 are arranged in a gap layer 9.

The reducer union 2 is a tapered pipe.

The ball valve 1 is an explosion-proof ball valve.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention is described in detail with reference to examples, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims

1. A safe collection device for hazardous gas in a refuse landfill comprises a drilling hole (7) and a porous pipe (5), and is characterized in that the drilling hole (7) is arranged below a final cover (3) with an anti-seepage function and is positioned in refuse; the drilling hole (7) is provided with a protective cover plate (8) on the plane of the final covering (3) with the anti-seepage function; the drill hole (7) is divided into a void layer (9) and a bentonite or clay layer (4); the lower part of the bentonite or clay layer (4) is provided with a backfill gravel or filter material layer (6), and the porous pipe (5) is inserted into the bentonite or clay layer (4) and the backfill gravel or filter material layer (6); the upper part of the porous pipe (5) is connected with a reducer union (2), a ball valve (1) is installed on the reducer union (2), and the ball valve (1) and the reducer union (2) are arranged in a gap layer (9).

2. The landfill hazardous gas safety collecting device of claim 1, characterized in that the reducer union (2) is a conical pipe.

3. The safety collection device for dangerous gas in a refuse landfill according to claim 1, characterized in that the ball valve (1) is an explosion-proof ball valve.