Treatment device for gas in soil

Abstract

The utility model discloses a treatment device for gas in soil, which comprises a vacuum pump, an inserting and burying pipe and a purification cylinder, the input end of the vacuum pump is provided with one end of a connecting pipe, the other end of the connecting pipe is inserted and mounted in the inserting and burying pipe, the output end of the vacuum pump is communicated with the inner cavity of the purification cylinder through a gas pipe, and the side wall of the inserting and burying pipe is provided with a gas inlet hole; the inner wall of the inserting and burying pipe is provided with a rotating shaft, the outer side of the rotating shaft is rotatably provided with a sleeve, the side wall of the sleeve is provided with a baffle, the baffle can be inserted into the air inlet hole, the outer side of the connecting pipe is sleeved with a sealing sleeve, and the sealing sleeve is inserted and installed in the inserting and burying pipe. The air inlet holes are blocked through the baffles, so that the situation that the air inlet holes are blocked by soil, and normal operation of the device is affected is avoided, in addition, the filter screen cover is arranged on the outer side of the connecting pipe, the connecting pipe is prevented from making contact with the soil, and the air exhaust efficiency is prevented from being affected.

Description

Technical Field

[0001] This patent relates to the field of soil remediation technology, specifically a device for treating gas in the soil. Background Art

[0002] Soil vapor extraction is a method for in-situ remediation of volatile organic pollution in soil. The basic principle of soil vapor extraction is to use a vacuum pump to extract and generate negative pressure. When air flows through the polluted area, it desorbs and entrains volatile and semi-volatile organic pollutants in the soil pores, which are carried away by the airflow and collected in the extraction well before final treatment, achieving the purpose of purifying the soil in the vadose zone.

[0003] In a device for treating gas in soil proposed in publication number CN210253530U, a buried pipe is inserted into the soil, and then the gas in the soil is extracted through a suction port;

[0004] However, in the above device, when the buried pipe is inserted into the soil, the soil easily enters the air intake port, causing the air intake port to be blocked, thus affecting the normal operation of the device. Utility Model Content

[0005] The purpose of this patent is to provide a device for processing gas in soil to solve the problems raised in the above background technology.

[0006] To achieve the above purpose, this patent provides the following technical solutions: a device for processing gas in soil, comprising a vacuum pump, an embedded pipe and a purification cartridge, wherein the input end of the vacuum pump is installed with one end of a connecting pipe, the other end of the connecting pipe is inserted and installed in the embedded pipe, and the output end of the vacuum pump is connected to the inner cavity of the purification cartridge through an air pipe;

[0007] An air inlet hole is opened on the side wall of the embedded tube, a rotating shaft is installed on the inner wall of the embedded tube, a sleeve is rotatably installed on the outer side of the rotating shaft, a baffle is installed on the side wall of the sleeve, and the baffle can be inserted into the air inlet hole;

[0008] The outer side of the connecting pipe is sleeved with a sealing sleeve, the sealing sleeve is inserted and installed in the embedded pipe, and the upper wall of the sealing sleeve is inserted and installed with an adjustment mechanism, and the adjustment mechanism can adjust the position of the baffle;

[0009] The vacuum pump is electrically connected to an external power source.

[0010] Preferably, the adjustment mechanism includes an insert plate, a clearance hole, a main support plate and a secondary support plate, the upper wall of the sealing sleeve is inserted with an insert plate, the side wall of one end of the insert plate located outside the buried tube is provided with a clearance hole, the side wall of the insert plate is installed with a main support plate and a secondary support plate, the main support plate and the secondary support plate are both located in the buried tube, and the main support plate and the secondary support plate are respectively located on the upper and lower sides of the baffle.

[0011] Preferably, an adjustment rod is installed on the side wall of the baffle, and the adjustment rod is located between the main support plate and the auxiliary support plate.

[0012] Preferably, a through hole is provided on the side wall of the connecting pipe, a filter screen cover is installed on the lower wall of the sealing sleeve, the filter screen cover is inserted and installed in the embedded pipe, and the connecting pipe is installed in the filter screen cover.

[0013] Preferably, a support rod is installed on the upper wall of the embedded tube, and a hook is installed on the side wall of the support rod, and the hook can be inserted and installed in the clearance hole.

[0014] Preferably, a partition is installed on the inner wall of the purification cylinder, and the inner cavity of the purification cylinder forms an air flow channel through the partition, and the air flow channel is filled with activated carbon particles.

[0015] Compared with the prior art, the beneficial effects of this patent are:

[0016] The device sets a baffle inside the buried pipe so that when the buried pipe is inserted into the soil, its air inlet is blocked by the baffle, thereby preventing the soil from blocking the air inlet and affecting the normal operation of the device. In addition, the device also sets a filter cover on the outside of the connecting pipe to prevent the connecting pipe from contacting the soil and avoiding affecting the air extraction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of this patent.

[0018] Figure 2 This is a schematic diagram of the baffle structure of this patent.

[0019] Figure 3 for Figure 1 Schematic diagram of the structure at point A in the middle.

[0020] In the figure: 1 vacuum pump, 2 buried pipe, 3 purification cylinder, 4 connecting pipe, 5 air inlet, 6 rotating shaft, 7 sleeve, 8 baffle, 9 sealing sleeve, 10 adjustment mechanism, 11 plug plate, 12 yield hole, 13 main support plate, 14 auxiliary support plate, 15 adjustment rod, 16 through hole, 17 filter screen, 18 support rod, 19 hook, 20 partition, 21 air flow channel, 22 activated carbon particles. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of this patent to clearly and completely describe the technical solutions in the embodiments of this patent. Obviously, the described embodiments are only part of the embodiments of this patent, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0022] See also Figure 1-3 This patent provides a technical solution: a device for treating gas in soil, comprising a vacuum pump 1, an embedded pipe 2 and a purification cartridge 3, wherein one end of a connecting pipe 4 is installed at the input end of the vacuum pump 1, and the other end of the connecting pipe 4 is inserted and installed in the embedded pipe 2, and the output end of the vacuum pump 1 is connected to the inner cavity of the purification cartridge 3 through an air pipe;

[0023] The buried pipe 2 can protect the connecting pipe 4, so that it can separate the soil from the connecting pipe 4 to prevent the two from contacting each other, thereby preventing the through hole 16 on the side wall of the connecting pipe 4 from being blocked by the soil, which affects the efficiency of air extraction;

[0024] An air inlet hole 5 is provided on the side wall of the buried pipe 2, a rotating shaft 6 is installed on the inner wall of the buried pipe 2, a sleeve 7 is rotatably installed on the outer side of the rotating shaft 6, a baffle 8 is installed on the side wall of the sleeve 7, and the baffle 8 can be inserted into the air inlet hole 5;

[0025] When the buried pipe 2 is inserted into the soil, the baffle 8 is inserted into the air inlet 5 to block the soil and prevent the soil from entering the buried pipe 2 through the air inlet 5 and contacting the connecting pipe 4.

[0026] The outer side of the connecting pipe 4 is sleeved with a sealing sleeve 9, which is inserted and installed in the embedded pipe 2. An adjusting mechanism 10 is inserted and installed on the upper wall of the sealing sleeve 9, and the adjusting mechanism 10 can adjust the position of the baffle 8;

[0027] The sealing sleeve 9 can ensure the sealing of the buried pipe 2, so that after the vacuum pump 1 is started, negative pressure can be generated in the buried pipe 2 to suck the gas in the soil. The extracted gas will be purified by the activated carbon particles 22 in the purification cylinder 3 and then discharged;

[0028] The vacuum pump 1 is electrically connected to an external power source.

[0029] Specifically, the adjustment mechanism 10 includes an insert plate 11, a clearance hole 12, a main support plate 13 and a secondary support plate 14. The upper wall of the sealing sleeve 9 is inserted with the insert plate 11, and the side wall of the insert plate 11 located outside the buried pipe 2 is provided with a clearance hole 12. The side wall of the insert plate 11 is installed with a main support plate 13 and a secondary support plate 14. The main support plate 13 and the secondary support plate 14 are both located in the buried pipe 2, and the main support plate 13 and the secondary support plate 14 are respectively located on the upper and lower sides of the baffle 8;

[0030] After the buried pipe 2 is inserted into the soil, the plug plate 11 can be pulled upwards so that it can cooperate with the auxiliary support plate 14 and the adjusting rod 15 below to drive the baffle plate 8 to rotate, so that the baffle plate 8 is pulled out of the air inlet hole 5, thereby releasing the blockage of the air inlet hole 5. After completion, the vacuum pump 1 can be started to suck the gas in the soil.

[0031] Specifically, an adjustment rod 15 is installed on the side wall of the baffle 8 , and the adjustment rod 15 is located between the main support plate 13 and the auxiliary support plate 14 .

[0032] Specifically, a through hole 16 is opened on the side wall of the connecting pipe 4, a filter screen 17 is installed on the lower wall of the sealing sleeve 9, the filter screen 17 is inserted and installed in the embedded pipe 2, and the connecting pipe 4 is inserted and installed in the filter screen 17;

[0033] The buried pipe 2 is the first layer of protection for the connecting pipe 3, and the filter screen cover 17 is the second layer of protection for the connecting pipe 3, preventing the connecting pipe 3 from contacting with the soil.

[0034] Specifically, a support rod 18 is installed on the upper wall of the buried pipe 2, and a hook 19 is installed on the side wall of the support rod 18. The hook 19 can be inserted and installed in the clearance hole 12;

[0035] By hooking the hook 19 in the clearance hole 12 , the position of the plug plate 11 can be fixed, so as to prevent the plug plate 11 from moving downward due to its own gravity, thereby causing the baffle plate 8 to block the air inlet 5 .

[0036] Specifically, a partition 20 is installed on the inner wall of the purification cylinder 3, and the inner cavity of the purification cylinder 3 forms an air flow channel 21 through the partition 20, and the air flow channel 21 is filled with activated carbon particles 22;

[0037] The air flow channel 21 separated by the partition plate 20 is serpentine, so as to prolong the residence time of the gas after entering the purification cylinder 3, thereby improving the gas purification effect.

[0038] Working principle: first insert the buried pipe 2 into the soil. It is necessary to ensure that the baffle 8 is inserted into the air inlet 5 during the insertion process to ensure that no soil enters the buried pipe 2. After the insertion is completed, the inserting plate 11 is pulled upward so that it can drive the baffle 8 to rotate through the cooperation of the auxiliary support plate 14 and the adjusting rod 15 below, so that the baffle 8 is pulled out of the air inlet 5 to release the blockage of the air inlet 5. After completion, the vacuum pump 1 can be started to suck the gas in the soil.

[0039] The extracted gas will enter the purification cylinder 3, and the gas will be purified by the activated carbon particles 22 in the purification cylinder 3 and then discharged.

[0040] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0041] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A device for treating gas in soil, comprising a vacuum pump (1), an embedded pipe (2) and a purification cartridge (3), characterized in that: The input end of the vacuum pump (1) is installed with one end of a connecting pipe (4), the other end of the connecting pipe (4) is inserted and installed in the embedded pipe (2), and the output end of the vacuum pump (1) is connected to the inner cavity of the purification cylinder (3) through an air pipe; An air inlet hole (5) is provided on the side wall of the embedded tube (2); a rotating shaft (6) is installed on the inner wall of the embedded tube (2); a sleeve (7) is rotatably installed on the outer side of the rotating shaft (6); a baffle (8) is installed on the side wall of the sleeve (7); and the baffle (8) can be inserted into the air inlet hole (5); The outer side of the connecting pipe (4) is sleeved with a sealing sleeve (9), the sealing sleeve (9) is inserted and installed in the embedded pipe (2), and an adjustment mechanism (10) is inserted and installed on the upper wall of the sealing sleeve (9), and the adjustment mechanism (10) can adjust the position of the baffle (8); The vacuum pump (1) is electrically connected to an external power source.

2. A device for treating gas in soil according to claim 1, characterized in that: The adjustment mechanism (10) comprises an insert plate (11), a clearance hole (12), a main support plate (13) and a secondary support plate (14); the insert plate (11) is inserted and installed on the upper wall of the sealing sleeve (9); a clearance hole (12) is opened on the side wall of one end of the insert plate (11) located outside the embedded pipe (2); the main support plate (13) and the secondary support plate (14) are installed on the side wall of the insert plate (11); the main support plate (13) and the secondary support plate (14) are both located in the embedded pipe (2); and the main support plate (13) and the secondary support plate (14) are respectively located on the upper and lower sides of the baffle (8).

3. A device for treating gas in soil according to claim 2, characterized in that: An adjustment rod (15) is installed on the side wall of the baffle (8), and the adjustment rod (15) is located between the main support plate (13) and the auxiliary support plate (14).

4. The device for treating gas in soil according to claim 1, characterized in that: A through hole (16) is formed on the side wall of the connecting pipe (4), a filter screen (17) is installed on the lower wall of the sealing sleeve (9), the filter screen (17) is inserted and installed in the embedded pipe (2), and the connecting pipe (4) is inserted and installed in the filter screen (17).

5. The device for treating gas in soil according to claim 2, characterized in that: A support rod (18) is installed on the upper wall of the embedded pipe (2), and a hook (19) is installed on the side wall of the support rod (18). The hook (19) can be inserted and installed in the clearance hole (12).

6. The device for treating gas in soil according to claim 1, characterized in that: A partition (20) is installed on the inner wall of the purification cylinder (3); the inner cavity of the purification cylinder (3) forms an air flow channel (21) through the partition (20); and the air flow channel (21) is filled with activated carbon particles (22).

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