CN216566378U

CN216566378U - Stack type gas collecting device

Info

Publication number: CN216566378U
Application number: CN202122747599.3U
Authority: CN
Inventors: 吴佳频; 雷俊
Original assignee: Shanghai Shengfeng Environmental Energy Technology Co ltd
Current assignee: Shanghai Shengfeng Environmental Energy Technology Co ltd
Priority date: 2021-11-10
Filing date: 2021-11-10
Publication date: 2022-05-20
Anticipated expiration: 2031-11-10

Abstract

The utility model relates to a pile type gas collecting device which comprises an upper layer of waterproof canvas and a lower layer of dustproof nylon net which are fixed with each other, wherein the edge of the upper layer of waterproof canvas is provided with a splicing fixing position, and the edge of the lower layer of dustproof nylon net is provided with a splicing fixing position; a suction space is formed between the upper waterproof canvas layer and the lower dustproof nylon net layer, and a corrugated pipe type air exhaust main pipe penetrates into the suction space; the outlet of the main exhaust pipe is communicated to negative pressure equipment. The utility model has the advantages of water resistance, centralized gas collection and vacuum negative pressure, can be used for covering a pile body with odor or volatile organic pollutants and collecting the volatile pollutants in the pile body, and has the characteristics of convenient operation, good collection effect and low cost.

Description

Stack type gas collecting device

Technical Field

The utility model relates to the technical field of environmental protection, in particular to a stack type gas collecting device which is used for collecting volatile gas.

Background

The irregular refuse landfill is designed and constructed according to the standard of refuse sanitary landfill construction without examining and approving aspects such as land utilization, planning, project establishment, environmental protection and the like. The main hazards include land resource waste, multiple pollution of organic matters, heavy metals and pathogenic microorganisms, landfill gas pollution, methane combustion explosion risk and soil and underground water pollution risk. Along with the implementation of a soil pollution prevention method, the ecological restoration of the irregular refuse landfill and the restoration of the polluted site become hot topics in the current environmental protection field, the large-scale excavation can be inevitable in the process of the irregular refuse landfill restoration and the organic polluted soil restoration, and the situation of odor diffusion or organic polluted gas diffusion can exist when the refuse or the polluted soil is exposed outside.

At present, common measures aiming at inhibiting the peculiar smell of the pile body comprise rain cloth covering, fog gun spraying and the like, and the aim of radical treatment is difficult to achieve. The waterproof cloth covers the garbage pile body in all aspects, gas with stink or volatile organic pollutants generated in the pile body is pressed in a certain sealed space, and if the garbage pile body needs to be transported or repaired, the polluted gas still overflows into the air when the waterproof cloth is uncovered, so that the surrounding environment and constructors are influenced. The fog gun spraying is to dilute the gas with foul smell or volatile organic pollutants generated by the garbage pile body by spraying the odor inhibitor, so as to relieve the direct influence of the peculiar smell in the gas on the surrounding environment and personnel, but the harmful gas cannot be effectively removed in the process, and if the fog gun spraying is carried out for a long time, the construction personnel still can absorb excessive harmful gas.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and solve the problem that the peculiar smell of the garbage landfill body exceeds the standard.

In order to achieve the purpose of the utility model, the pile type gas collecting device comprises an upper layer of waterproof canvas and a lower layer of dustproof nylon net which are fixed with each other, wherein the edge of the upper layer of waterproof canvas is provided with a splicing fixing position, and the edge of the lower layer of dustproof nylon net is provided with a splicing fixing position; a suction space is formed between the upper waterproof canvas layer and the lower dustproof nylon net layer, and a corrugated pipe type air exhaust main pipe penetrates into the suction space; the outlet of the main exhaust pipe is communicated to negative pressure equipment.

The lower dustproof nylon net is paved towards the soil pile, and the upper waterproof canvas covers the lower dustproof nylon net. The splicing fixing position refers to a position where the edge of the mesh cloth is used for splicing, and the splicing fixing structure can be in the form of a zipper, a thread gluing, a sewing position and the like, and is specifically used for splicing the same mesh cloth at the edge or fixing the mesh cloth to the edge of a processing pile. The suction main pipe is used for sucking gas in the suction space, and a suction port of the suction main pipe can be an opening at the inlet end of the suction main pipe or can be in a form of a hole on the side wall and the like.

Preferably, the upper layer of waterproof canvas and the lower layer of dustproof nylon net are fixed through sutures; the lines in the suction space are separated by the suture.

The term "piping" as used herein refers to all piping stored in the suction space, including, but not limited to, main suction pipes, branch suction pipes, and other auxiliary pipes.

Preferably, the part of the main exhaust pipe in the suction space extends out of the bellows-type exhaust branch pipes in a dendritic manner, and the exhaust branch pipes are uniformly distributed in the suction space; the air exhaust branch pipe is communicated with the air exhaust main pipe.

The main exhaust pipe and the branch exhaust pipe are communicated with each other and can conduct negative pressure.

Preferably, the extension direction of the air exhaust branch pipe after being positioned in the suction space is perpendicular to the air exhaust main pipe.

Through will bleed the branch pipe and bleed and be responsible for and carry out perpendicular setting, guaranteed the interval and the suction efficiency of suction.

Preferably, the side wall of the air exhaust branch pipe is uniformly provided with holes, and the coverage density in the suction space is 0.5-1 m/m²(ii) a The side wall of the main exhaust pipe is uniformly provided with holes, and the coverage density of the main exhaust pipe in the suction space is 0.01-0.5 m/m²。

Preferably, the tail end of the main exhaust pipe is provided with a joint for butting other pipelines or sealing covers.

Preferably, a pressure gauge is arranged on the main exhaust pipe at the edge of the suction space.

The utility model has the advantages of water resistance, centralized gas collection and vacuum negative pressure, can be used for covering a pile body with odor or volatile organic pollutants and collecting the volatile pollutants in the pile body, and has the characteristics of convenient operation, good collection effect and low cost.

Drawings

FIG. 1 is a schematic side sectional view of a portion of a stack gas collection apparatus according to the present invention;

FIG. 2 is a top view of the heap gas collecting apparatus of the present invention after the canvas top is lifted;

wherein:

1-upper layer waterproof canvas 2-air exhaust main pipe 3-lower layer dustproof nylon net

4-suction branch pipe 5-suture line 6-negative pressure equipment

7-pressure gauge

Detailed Description

The utility model is further described below with reference to the following figures and specific examples.

The stacked gas collecting device shown in fig. 1 to 2 comprises an upper layer of waterproof canvas 1 and a lower layer of dustproof nylon net 3 which are fixed with each other, wherein the edge of the upper layer of waterproof canvas 1 is provided with a splicing and fixing position in a thread gluing mode, and the edge of the lower layer of dustproof nylon net 3 is provided with a splicing and fixing position; a suction space is formed between the upper layer waterproof canvas 1 and the lower layer dustproof nylon net 3, and a PVC corrugated pipe type air exhaust main pipe 2 is fixed in the suction space in a penetrating manner; the outlet of the main exhaust pipe 2 is communicated to a negative pressure device 6. And a pressure gauge 7 is arranged on the main exhaust pipe 2 at the edge of the suction space.

The part of the main exhaust pipe 2 in the suction space extends out of PVC corrugated pipe type exhaust branch pipes 4 in a tree-like manner, and the exhaust branch pipes 4 are uniformly distributed in the suction space; the air exhaust branch pipe 4 is communicated with the air exhaust main pipe 2. The extension direction of the air exhaust branch pipe 4 after being positioned in the air exhaust space is vertical to the air exhaust main pipe 2.

The upper layer of waterproof canvas 1 and the lower layer of dustproof nylon net 3 are fixed by a suture 5; the main suction pipe 2 and the branch suction pipe 4 in the suction space are separated by the suture 5.

The side wall of the air exhaust branch pipe 4 is uniformly provided with holes, and the coverage density in the air exhaust space is 0.5-1 m/m²(ii) a The main exhaust pipe2, uniformly forming holes on the side wall, wherein the covering density of the main exhaust pipe 2 in the suction space is 0.01-0.5 m/m². The tail end of the main exhaust pipe 2 is provided with a joint for butting other pipelines or sealing covers.

Upper waterproof canvas 1, the person in charge 2, the dustproof nylon wire of lower floor 3, the branch pipe 4 of bleeding constitute a collapsible and gas collection device who expandes, and a plurality of gas collection devices can expand the concatenation and use. The pipe diameter of the air exhaust branch pipe 4 is 0.5-1 cm, and the pipe diameter of the air exhaust main pipe 2 is 1-2 cm. The negative pressure equipment 6 is a vacuum pump, and the negative pressure intensity is 0.005-0.01 MPa. The coverage area of the single set of gas collecting device to the soil pile is 50-200 m²。

The method for utilizing the stack type gas collecting device comprises the following steps: firstly, the heap type gas collecting device is paved on the surface of a heap body, and then is connected with a negative pressure device 6, and the rear part of the negative pressure device 6 is connected with a tail gas treatment device.

Repair field application, example 1: the repair site is a site of a certain irregular refuse landfill renovation project in the gold mountain area of Shanghai, and the exposed area of the refuse dump body is 2000m²The pollutants are stink, the concentration of the stink at the perimeter monitoring point is 100 (dimensionless), and the garbage pile body is covered and gas is collected after the gas collecting device of the embodiment is spliced in a plane (the air exhaust main pipes 2 are communicated). The air exhaust branch pipe 4 is made of PVC flexible corrugated pipes with the pipe diameter of 0.5cm, and the air exhaust main pipe 2 is made of PVC flexible corrugated pipes with the pipe diameter of 1 cm. The coverage density of the air exhaust branch pipe 4 is 0.5m/m²The cover density of the main exhaust pipe 2 is 0.01m/m². The negative pressure intensity of the vacuum pump is 0.005 MPa.

The application effect is as follows: after the stack gas collection system was laid, the perimeter odor monitoring concentration was 5 (dimensionless).

As a result: the gas collecting device has a good control effect on the garbage stink.

Repair field application, example 2: the remediation site is a remediation site for a certain polluted soil in Putuo area of Shanghai city, and the polluted volume is 10000m³Exposed area 3000m²The pollutant is chlorobenzene volatile organic pollutant, the average PID reading of the site is 30ppm before uncovering, and the gas collecting device of the embodiment is adoptedAnd covering after plane splicing (the main exhaust pipe 2 is communicated). The air exhaust branch pipe 4 is made of PVC flexible corrugated pipes with the pipe diameter of 0.5cm, and the air exhaust main pipe 2 is made of PVC flexible corrugated pipes with the pipe diameter of 1 cm. The coverage density of the pumping branch pipe is 0.2m/m²The cover density of the main exhaust pipe is 0.006m/m². The negative pressure intensity of the vacuum pump is 0.006 MPa.

The application effect is as follows: after the stack gas collection system was deployed, the on-site PID averaged 1 ppm.

As a result: the gas collecting device has good control effect on the volatile gas of the organic contaminated soil.

The pile type gas collecting device integrates the advantages of water resistance, gas centralized collection and vacuum negative pressure, and can be used for covering a garbage pile body and a polluted soil pile body and collecting odor or volatile organic pollutants in the pile body. The device has the characteristics of convenient operation, good collection effect and low cost, and can be used for treating a non-normal refuse landfill or repairing organic contaminated soil, and effectively controlling the problem of secondary pollution in the construction process. The collected gas can be directly connected with a tail gas treatment device at the rear end, and concentrated collection and centralized treatment are realized, so that the defect that pollution cannot be eradicated by traditional single rain cloth covering or fog gun control is overcome, and the diffusion of stink or organic gas is fundamentally avoided.

The advantage of this device is showing, and the gas that has foul smell or volatile organic pollutant overflows and scatters to all ring edge borders in can effectual control rubbish heap body through upper canvas and lower floor's dustproof nylon wire to the branch pipe of bleeding between canvas and the dustproof nylon wire can directly be handled the harmful gas of piling the body in unified collection to tail gas treatment facility, and fundamentally solves rubbish heap body to all ring edge borders and constructor's influence.

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the utility model is not limited to the embodiments disclosed, but is capable of numerous equivalents and substitutions, all of which are within the scope of the utility model as defined by the appended claims.

Claims

1. The pile type gas collecting device is characterized by comprising an upper layer of waterproof canvas (1) and a lower layer of dustproof nylon net (3) which are fixed with each other, wherein the edge of the upper layer of waterproof canvas (1) is provided with a splicing fixing position, and the edge of the lower layer of dustproof nylon net (3) is provided with a splicing fixing position; a suction space is formed between the upper layer waterproof canvas (1) and the lower layer dustproof nylon net (3), and a corrugated pipe type air exhaust main pipe (2) penetrates into the suction space; the outlet of the main air exhaust pipe (2) is communicated to the negative pressure equipment (6).

2. The stacked gas collecting device according to claim 1, wherein the upper canvas (1) and the lower canvas (3) are fixed by a suture (5); the lines in the suction space are separated by the suture (5).

3. The reactor gas collecting device according to claim 1, wherein the portion of the main exhaust pipe (2) in the suction space is extended like a tree branch from a bellows branch exhaust pipe (4), and the branch exhaust pipes (4) are uniformly distributed in the suction space; the air exhaust branch pipe (4) is communicated with the air exhaust main pipe (2).

4. A stack gas collecting device according to claim 3, characterised in that the extension direction of the exhaust manifold (4) after positioning in the suction space is perpendicular to the main exhaust duct (2).

5. The stack gas collecting device according to claim 3, wherein the side wall of the pumping branch pipe (4) is uniformly perforated and the covering density in the pumping space is 0.5-1 m/m²(ii) a The side wall of the main exhaust pipe (2) is uniformly provided with holes, and the covering density of the main exhaust pipe (2) in the suction space is 0.01-0.5 m/m²。

6. The stack gas collecting device according to claim 1, wherein the end of the main pumping duct (2) is provided with a joint for butting against other pipelines or sealing covers.

7. The stack gas collection device according to claim 1, wherein a pressure gauge (7) is provided on the main evacuation pipe (2) at the edge of the suction space.