Tail gas recovery biogas torch

Abstract

The utility model provides a tail gas recovery marsh gas torch which comprises a torch body, an ignition mechanism, an inner cylinder, a flame arrester and a side blocking mechanism, a communication pipeline is arranged on one side of the torch body, and marsh gas is conveyed in the communication pipeline; the ignition mechanism is arranged in the torch body, one end of the communicating pipeline penetrates through the torch body and communicates with the ignition mechanism, the inner cylinder is arranged on the side, away from the communicating pipeline, of the ignition mechanism, the two sides of the inner cylinder are open, and the inner cylinder and the inner wall of the torch body are arranged at intervals; the flame arrester is arranged in the inner cylinder and is far away from one side of the ignition mechanism, and the flame arrester and the inner wall of the inner cylinder are arranged at an interval; the side blocking mechanism is arranged in the inner barrel, located on the side, away from the ignition mechanism, of the flame arrester and corresponds to the gap between the flame arrester and the inner barrel in position, a flame arresting device is arranged in the torch body, the torch can be used in the environment where flammable substances exist outside, the situation that sparks of the torch ignite external flammable substances to burn can be avoided, and potential safety hazards are avoided; therefore, the use safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of biogas treatment, in particular to a tail gas recovery biogas torch. Background Art

[0002] Anaerobic fermentation process links are mostly set up in plants such as food waste treatment plants, waste incineration power plants, farms, and wastewater treatment plants. Biogas is produced as a by-product, and its main component is 50%-70% methane. For biogas with a large production scale, it is mostly recycled, and the torch is used as a standby device. For biogas with a small production scale, it is mostly directly incinerated through the torch.

[0003] A closed biogas torch with the publication number of CN204513415U includes a biogas torch body. A rain-proof cap is arranged at the top of the biogas torch body, and a ground angle flange is arranged at the bottom. A diffusion burner is arranged inside the bottom of the biogas torch body. A smoke chamber is arranged above the diffusion burner. The space part between the smoke chamber and the biogas torch body is a heat insulation layer. A blower interface and an air inlet are arranged on the circumference of the bottom of the biogas torch body. The air inlet communicates with the diffusion burner. An igniter is also arranged on the circumference of the biogas torch body above the air inlet. The igniter communicates with the diffusion burner. A connecting flange is arranged on the circumference of the biogas torch body outside the diffusion burner. A secondary air inlet is arranged between the diffusion burner and the smoke chamber. A thermoelectric flame detector is arranged on the circumference of the biogas torch body above the secondary air inlet.

[0004] In the combustion process of the existing biogas torch, a flame arrestor is arranged from inside the torch body to the flue gas outlet. When used in an external flammable environment, it is easy to cause external substances to burn, which will cause potential safety hazards and reduce the use safety. Content of the Utility Model

[0005] In view of this, the utility model provides a tail gas recovery biogas torch. A flame arrestor is arranged inside the torch body, which can be used in an external flammable environment, can avoid the sparks of the torch from igniting external flammable substances and causing safety hazards, and thus improves the use safety.

[0006] The technical solution of the utility model is realized as follows: The utility model provides a tail gas recovery biogas torch, which includes a torch body, an ignition mechanism, an inner cylinder, a flame arrestor and a side baffle mechanism. Among them,

[0007] The inside of the torch body is hollow, and a connecting pipe is arranged on one side of the torch body, and biogas is conveyed in the connecting pipe;

[0008] The ignition mechanism is arranged inside the torch body. One end of the connecting pipe penetrates the torch body and is connected to the ignition mechanism. The ignition mechanism is used to ignite and burn the conveyed biogas;

[0009] The inner cylinder is arranged on the side of the ignition mechanism away from the connecting pipe, and both sides are open, and it is arranged at an interval from the inner wall of the torch body;

[0010] The flame arrester is arranged inside the inner cylinder, and is arranged on the side away from the ignition mechanism, and the flame arrester is arranged at an interval from the inner wall of the inner cylinder for preventing fire;

[0011] The side baffle mechanism is arranged inside the inner cylinder, and is located on the side of the flame arrester away from the ignition mechanism, and corresponds to the gap position between the flame arrester and the inner cylinder for suppressing the flame.

[0012] On the basis of the above technical solutions, preferably, the ignition mechanism includes a cover body and an igniter, wherein,

[0013] The cover body is vertically arranged inside the torch body, one end of the connecting pipe penetrates into the torch body and is communicated with the inside of the cover body;

[0014] The igniter is arranged on the outer side of the torch body, and the ignition end of the igniter penetrates the torch body and extends into the cover body;

[0015] The biogas conveyed in the connecting pipe is sent into the cover body, and the igniter ignites and burns the sent biogas.

[0016] On the basis of the above technical solutions, preferably, a plurality of air inlet holes are formed on the outer side of the cover body, the shape of the cover body is trumpet-shaped, and the plurality of air inlet holes are uniformly arranged in an annular array along the axis of the cover body.

[0017] On the basis of the above technical solutions, preferably, it further includes a plurality of first support members, wherein the plurality of first support members are all arranged between the inner cylinder and the inner wall of the torch body, and the plurality of first support members are uniformly arranged in an annular array along the axis of the inner cylinder;

[0018] One end of the inner cylinder close to the connecting pipe is fixedly connected to the cover body, and the diameter of the inner cylinder is the same as the diameter of the end face of the cover body on the side away from the connecting pipe.

[0019] On the basis of the above technical solutions, preferably, it further includes a second support member and a first grid plate, wherein,

[0020] The second support member is fixed inside the inner cylinder;

[0021] The first grid plate is fixed on the side of the second support member away from the ignition mechanism, and the first grid plate is arranged at an interval from the inner wall of the inner cylinder, and an annular positioning portion is provided at the edge of the side of the first grid plate away from the second support member;

[0022] The inner contour shape of the annular positioning portion matches the outer contour shape of the flame arrester, and the flame arrester abuts against the inside of the annular positioning portion.

[0023] On the basis of the above technical solutions, preferably, the side baffle mechanism includes a plurality of inclined baffle plates, wherein the plurality of inclined baffle plates are all fixed inside the inner cylinder and are all located on the side of the first grid plate away from the second support member;

[0024] The width of the plurality of inclined baffle plates is greater than the clearance distance between the annular positioning portion and the inner cylinder, and the inclined baffle plates are inclined with respect to the inner wall of the inner cylinder, and two adjacent inclined baffle plates partially overlap in the vertical projection direction.

[0025] On the basis of the above technical solutions, preferably, an adsorption mechanism is further included, wherein the adsorption mechanism is arranged inside the torch body and is located on the side of the inner cylinder away from the ignition mechanism, and the adsorption mechanism is used for adsorbing the tail gas after the biogas combustion.

[0026] On the basis of the above technical solutions, preferably, the adsorption mechanism includes a second grid plate and an adsorption layer, wherein,

[0027] The second grid plate is fixed inside the torch body and is located on the side of the inner cylinder away from the ignition mechanism;

[0028] The adsorption layer is arranged on the second grid plate and is used for adsorbing the tail gas after the biogas combustion.

[0029] On the basis of the above technical solutions, preferably, a feed port, a discharge port and a discharge platform are further included, wherein the feed port, the discharge port and the discharge platform are all arranged outside the torch body, the feed port is located on the side of the second grid plate away from the inner cylinder and is used for filling the adsorption layer onto the second grid plate, the position of the discharge port corresponds to the position of the second grid plate and is used for discharging the adsorption layer on the second grid plate, and the height of the discharge platform corresponds to the height of the discharge port.

[0030] On the basis of the above technical solutions, preferably, a blower is further included, wherein the blower is arranged outside the torch body, and the air outlet end of the blower penetrates and extends into the torch body for supplying oxygen to the inside of the torch body.

[0031] The tail gas recovery biogas torch of the present utility model has the following beneficial effects compared with the prior art:

[0032] (1) Biogas is transported into the torch body through the connecting pipeline. After the ignition mechanism is started, the biogas is ignited to generate a flame, and the flame burns inside the inner cylinder. The flame arrester and the side baffle mechanism prevent the flame or sparks from spreading to the outside and prevent the occurrence of flashback, so that the biogas burns safely and effectively inside the torch body, can be used in an external flammable environment, can avoid the sparks of the torch from igniting external flammable substances and causing a safety hazard, thereby improving the use safety;

[0033] (2) The installed flame arrester is spaced from the inner wall of the inner cylinder, which plays a role in pressure relief. At the same time, the installed side baffle mechanism is located directly above the gap area between the flame arrester and the inner cylinder, which can play a role in suppressing the flame, thereby facilitating the discharge of the burning flue gas from the inner cylinder and further improving the safety of the torch during use;

[0034] (3) The blower conveys air into the torch body, which not only supplies oxygen to promote the full combustion of biogas, but also can reduce the temperature of the inner wall of the torch body and the outer wall of the inner cylinder, and can also accelerate the upward discharge rate of the flue gas. Thus, it not only improves the treatment rate of biogas flue gas, but also improves the safety of the torch body during use; (4) After the flue gas is absorbed by the activated carbon particles of the installed adsorption layer and then discharged outside the torch body, the effect of green environmental protection is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following-described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0036] Figure 1 is a schematic structural diagram of the tail gas recovery biogas torch of the present invention;

[0037] Figure 2 is a three-dimensional view of the connection structure between the second support member and the first grille plate of the tail gas recovery biogas torch of the present invention;

[0038] Figure 3 is a three-dimensional view of several inclined baffle plates of the tail gas recovery biogas torch of the present invention;

[0039] Figure 4 is a three-dimensional view of the internal structure of the inner cylinder of the tail gas recovery biogas torch of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0041] As Figures 1-4 shown, the present invention provides a tail gas recovery biogas torch, which includes a torch body 1, an ignition mechanism 2, an inner cylinder 3, a flame arrester 4 and a side baffle mechanism 5.

[0042] Among them, the torch body 1 is hollow inside. A connecting pipe 100 is arranged on one side of the torch body 1, and biogas is transported inside the connecting pipe 100; an ignition mechanism 2 is arranged inside the torch body 1. One end of the connecting pipe 100 penetrates through the torch body 1 and is connected to the ignition mechanism 2. The ignition mechanism 2 is used to ignite and burn the transported biogas; an inner cylinder 3 is arranged on the side of the ignition mechanism 2 away from the connecting pipe 100, and both sides are open and are arranged at intervals with the inner wall of the torch body 1; a flame arrester 4 is arranged inside the inner cylinder 3 and is arranged on the side away from the ignition mechanism 2, and the flame arrester 4 is arranged at intervals with the inner wall of the inner cylinder 3 for preventing fire; a side baffle mechanism 5 is arranged inside the inner cylinder 3 and is located on the side of the flame arrester 4 away from the ignition mechanism 2 and corresponds to the gap position between the flame arrester 4 and the inner cylinder 3 for suppressing the flame.

[0043] It should be noted that the biogas is transported into the torch body 1 through the connecting pipe 100. After the ignition mechanism 2 is started, the biogas is ignited to generate a flame, and the flame burns inside the inner cylinder 3. The flame arrester 4 and the side baffle mechanism 5 prevent the flame or sparks from spreading to the outside and prevent the occurrence of flashback, enabling the biogas to burn safely and effectively inside the torch body 1, being able to be used in an environment where flammable substances exist outside, avoiding the sparks of the torch from igniting external flammable substances and causing safety hazards, thereby improving the use safety.

[0044] In addition, since the flame burns inside the inner cylinder 3, a large amount of flue gas will be generated during combustion. If the flame arrester 4 is arranged in contact with the inner wall of the inner cylinder 3, a large pressure will be generated below the flame arrester 4, which will further cause deflagration and pose a large safety problem. Therefore, in this embodiment, the flame arrester 4 is designed to be arranged at intervals with the inner wall of the inner cylinder 3. Also, since the side baffle mechanism 5 is arranged directly above the gap area between the flame arrester 4 and the inner cylinder 3, it can play a role in suppressing the flame, facilitating the discharge of the combustion flue gas from the inner cylinder 3 and further improving the use safety of the torch.

[0045] As a preferred embodiment, the ignition mechanism 2 in this embodiment includes a cover body 21 and an igniter 22. Among them, the cover body 21 is vertically arranged inside the torch body 1. One end of the connecting pipe 100 penetrates into the torch body 1 and is connected to the inside of the cover body 21; the igniter 22 is arranged on the outer side of the torch body 1, and the ignition end of the igniter 22 penetrates through the torch body 1 and extends into the cover body 21; the biogas transported inside the connecting pipe 100 is sent into the cover body 21, and the igniter 22 ignites and burns the sent biogas.

[0046] In addition, a plurality of air inlet holes 200 are opened on the outer side of the cover body 21. The shape of the cover body 21 is in the shape of a horn, and the plurality of air inlet holes 200 are evenly arranged in a circular array along the axis of the cover body 21.

[0047] This embodiment further includes a blower 10. The blower 10 is arranged outside the torch body 1, and the air outlet end of the blower 10 penetrates and extends into the torch body 1 for supplying oxygen to the inside of the torch body 1.

[0048] It should be noted that the blower 10 inputs external air into the torch body 1. A number of air inlet holes 200 opened on the outer side of the cover body 21 can ensure that the biogas can obtain a uniform oxygen supply during combustion, promoting the full combustion of the biogas. In addition, another part of the gas of the blower 10 will enter between the torch body 1 and the inner cylinder 3, which can not only reduce the temperature of the inner wall of the torch body 1 and the outer wall of the inner cylinder 3, but also accelerate the upward discharge rate of the flue gas, thereby not only improving the treatment rate of the biogas flue gas, but also improving the safety of using the torch body 1.

[0049] This embodiment further includes a number of first support members 6. The first support members 6 are all arranged between the inner cylinder 3 and the inner wall of the torch body 1, and the first support members 6 are evenly distributed in a circular array along the axis of the inner cylinder 3; one end of the inner cylinder 3 close to the connecting pipe 100 is fixedly connected to the cover body 21, and the diameter of the inner cylinder 3 is the same as the diameter of the end face of the cover body 21 on the side away from the connecting pipe 100.

[0050] It should be noted that the first support members 6 are evenly arranged between the inner cylinder 3 and the inner wall of the torch body 1, which can ensure that the inner cylinder 3 is evenly stressed in all directions, reduce deformation or damage caused by uneven stress, provide stable structural support, and ensure that the inner cylinder 3 is fixed and stable inside the torch body 1; one end of the inner cylinder 3 close to the connecting pipe 100 is fixedly connected to the cover body 21, and the diameter of the inner cylinder 3 is the same as the diameter of the end face of the cover body 21 on the side away from the connecting pipe 100, ensuring the close fit between the inner cylinder 3 and the cover body 21, which is beneficial to the stable transportation and combustion of the biogas. When the biogas enters the cover body 21 through the connecting pipe 100, it can smoothly flow into the inner cylinder 3, reducing the resistance of gas flow and improving the combustion efficiency.

[0051] This embodiment further includes a second support member 7 and a first grid plate 8. The second support member 7 is fixed inside the inner cylinder 3; the first grid plate 8 is fixed on the side of the second support member 7 away from the ignition mechanism 2, and the first grid plate 8 is spaced from the inner wall of the inner cylinder 3. An annular positioning portion 81 is provided at the edge of the side of the first grid plate 8 away from the second support member 7; the inner contour shape of the annular positioning portion 81 matches the outer contour shape of the flame arrester 4, and the flame arrester 4 abuts against the inside of the annular positioning portion 81.

[0052] It should be noted that the second support member 7 includes a plurality of steel profiles. The plurality of steel profiles are cross-fixed and fixed on the inner wall of the inner cylinder 3. The second support member 7 is fixed inside the inner cylinder 3 to provide support for the first grille plate 8. The flame arrester 4 abuts against the annular positioning portion 81, facilitating the quick installation and positioning of the flame arrester 4, preventing its displacement or detachment, and ensuring the stability of flame arrest.

[0053] In this embodiment, the side baffle mechanism 5 includes a plurality of baffle inclined plates 51. Among them, the plurality of baffle inclined plates 51 are all fixed inside the inner cylinder 3 and are all located on the side of the first grille plate 8 away from the second support member 7; the widths of the plurality of baffle inclined plates 51 are greater than the clearance distance between the annular positioning portion 81 and the inner cylinder 3, and the baffle inclined plates 51 are inclined with respect to the inner wall of the inner cylinder 3, and adjacent two baffle inclined plates 51 partially overlap in the vertical projection direction.

[0054] It should be noted that the width of the baffle inclined plate 51 is greater than the clearance distance between the annular positioning portion 81 and the inner cylinder 3, so as to suppress the flame in the clearance between the annular positioning portion 81 and the inner cylinder 3. At the same time, the baffle inclined plate 51 is inclined, which can play a guiding role in the flue gas discharge.

[0055] This embodiment further includes an adsorption mechanism 9. Among them, the adsorption mechanism 9 is arranged inside the torch body 1 and is located on the side of the inner cylinder 3 away from the ignition mechanism 2. The adsorption mechanism 9 is used to adsorb the tail gas after the biogas combustion.

[0056] As a preferred implementation manner, the adsorption mechanism 9 in this embodiment includes a second grille plate 91 and an adsorption layer 92. Among them, the second grille plate 91 is fixed inside the torch body 1 and is located on the side of the inner cylinder 3 away from the ignition mechanism 2; the adsorption layer 92 is arranged on the second grille plate 91 and is used to adsorb the tail gas after the biogas combustion.

[0057] It should be noted that the adsorption layer 92 is made of activated carbon particles. The diameter of the activated carbon particles is greater than the pore size of the second grille plate 91. After the combustion flue gas is discharged from the inner cylinder 3, it passes through the second grille plate 91 and enters the adsorption layer 92. The activated carbon particles in the adsorption layer 92 absorb the flue gas and then discharge it outside the torch body 1, achieving the effect of environmental protection.

[0058] This embodiment further includes a feed port 11, a discharge port 12 and a discharging platform 13. Among them, the feed port 11, the discharge port 12 and the discharging platform 13 are all arranged on the outside of the torch body 1. The feed port 11 is located on the side of the second grille plate 91 away from the inner cylinder 3 and is used to fill the adsorption layer 92 on the second grille plate 91. The position of the discharge port 12 corresponds to the position of the second grille plate 91 and is used to unload the adsorption layer 92 on the second grille plate 91. The height of the discharging platform 13 corresponds to the height of the discharge port 12.

[0059] It should be noted that the feed inlet 11 is located at the top of the torch body 1. By opening the feed inlet 11, activated carbon particles can be put into the torch body 1. After the activated carbon particles become ineffective, the discharge port 12 is opened to discharge the activated carbon particles. The unloading platform 13 facilitates the operators to unload and load the adsorption layer 92 on this platform.

[0060] Working principle:

[0061] Biogas is conveyed into the torch body 1 through the connecting pipe 100. After the ignition mechanism 2 is started, the biogas is ignited to generate a flame, and the flame burns inside the inner cylinder 3. The flame arrester 4 prevents the flame in the inner cylinder 3 from spreading. Moreover, the side baffle mechanism 5 suppresses the flame between the flame arrester 4 and the inner wall of the inner cylinder 3. The burning flue gas is discharged upward through the gap between the flame arrester 4 and the inner cylinder 3. The flue gas passes through the second grid plate 91 and enters the adsorption layer 92. The activated carbon particles in the adsorption layer 92 absorb the flue gas and then discharge it outside the torch body 1.

[0062] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A tail gas recovery biogas torch, characterized in that: The invention comprises a torch body (1), an ignition mechanism (2), an inner tube (3), a flame arrester (4) and a side blocking mechanism (5), wherein: The interior of the torch body (1) is hollow, and a connecting pipe (100) is provided on one side of the torch body (1), and biogas is transported in the connecting pipe (100); The ignition mechanism (2) is arranged in the torch body (1), one end of the communication pipe (100) passes through the torch body (1) and is connected to the ignition mechanism (2), and the ignition mechanism (2) is used to ignite and burn the transported biogas; The inner tube (3) is arranged on a side of the ignition mechanism (2) away from the connecting pipe (100), has openings on both sides, and is spaced apart from the inner wall of the torch body (1); The flame arrester (4) is arranged in the inner tube (3) and is arranged on a side away from the ignition mechanism (2), and the flame arrester (4) is arranged at a distance from the inner wall of the inner tube (3) for preventing fire; The side blocking mechanism (5) is arranged in the inner cylinder (3) and is located on the side of the flame arrester (4) away from the ignition mechanism (2) and corresponds to the gap position between the flame arrester (4) and the inner cylinder (3) for suppressing flames.

2. The tail gas recovery biogas torch according to claim 1, characterized in that: The ignition mechanism (2) comprises a cover body (21) and an igniter (22), wherein: The cover body (21) is vertically arranged in the torch body (1), and one end of the communication pipe (100) penetrates into the torch body (1) and is connected with the inside of the cover body (21); The igniter (22) is arranged on the outer side of the torch body (1), and the ignition end of the igniter (22) penetrates the torch body (1) and extends into the cover body (21); The biogas transported in the connecting pipe (100) is sent into the cover body (21), and the igniter (22) ignites and burns the sent biogas.

3. The tail gas recovery biogas torch according to claim 2, characterized in that: A plurality of air inlet holes (200) are provided on the outer side of the cover body (21); the shape of the cover body (21) is trumpet-shaped; and the plurality of air inlet holes (200) are evenly distributed in a ring-shaped array along the axis of the cover body (21).

4. The tail gas recovery biogas torch according to claim 2, characterized in that: It also includes a plurality of first support members (6), wherein the plurality of first support members (6) are all arranged between the inner tube (3) and the inner wall of the torch body (1), and the plurality of first support members (6) are evenly distributed in an annular array along the axis of the inner tube (3); One end of the inner cylinder (3) close to the connecting pipe (100) is fixedly connected to the cover body (21), and the diameter of the inner cylinder (3) is the same as the diameter of the end surface of the cover body (21) away from the connecting pipe (100).

5. The tail gas recovery biogas torch according to claim 1, characterized in that: It also includes a second support member (7) and a first grid plate (8), wherein: The second support member (7) is fixed in the inner tube (3); The first grid plate (8) is fixed on a side of the second support member (7) away from the ignition mechanism (2), and the first grid plate (8) is spaced apart from the inner wall of the inner cylinder (3), and an annular positioning portion (81) is provided at the edge of the first grid plate (8) away from the second support member (7); The inner contour shape of the annular positioning portion (81) matches the outer contour shape of the flame arrester (4), and the flame arrester (4) abuts against the inside of the annular positioning portion (81).

6. The tail gas recovery biogas torch according to claim 5, characterized in that: The side blocking mechanism (5) comprises a plurality of inclined blocking plates (51), wherein the plurality of inclined blocking plates (51) are all fixed in the inner cylinder (3) and are all located on a side of the first grid plate (8) away from the second support member (7); The width of the plurality of inclined baffles (51) is greater than the gap distance between the annular positioning portion (81) and the inner cylinder (3), and the inclined baffles (51) and the inner wall of the inner cylinder (3) are arranged in an inclined manner, and two adjacent inclined baffles (51) partially overlap in the vertical projection direction.

7. The tail gas recovery biogas torch according to claim 1, characterized in that: It also comprises an adsorption mechanism (9), wherein the adsorption mechanism (9) is arranged in the torch body (1) and is located on a side of the inner tube (3) away from the ignition mechanism (2), and the adsorption mechanism (9) is used to adsorb tail gas after biogas combustion.

8. The tail gas recovery biogas torch according to claim 7, characterized in that: The adsorption mechanism (9) comprises a second grid plate (91) and an adsorption layer (92), wherein: The second grid plate (91) is fixed in the torch body (1) and is located on a side of the inner tube (3) away from the ignition mechanism (2); The adsorption layer (92) is arranged on the second grid plate (91) and is used to adsorb tail gas after biogas combustion.

9. The tail gas recovery biogas torch according to claim 8, characterized in that: It also includes a feed port (11), a discharge port (12) and a discharge platform (13), wherein the feed port (11), the discharge port (12) and the discharge platform (13) are all arranged on the outside of the torch body (1), the feed port (11) is located on the side of the second grid plate (91) away from the inner tube (3), and is used to fill the adsorption layer (92) on the second grid plate (91), the position of the discharge port (12) corresponds to the position of the second grid plate (91), and is used to discharge the adsorption layer (92) on the second grid plate (91), and the height of the discharge platform (13) corresponds to the height of the discharge port (12).

10. The tail gas recovery biogas torch according to claim 1, characterized in that: It also includes a blower (10), wherein the blower (10) is arranged on the outside of the torch body (1), and the air outlet end of the blower (10) penetrates and extends into the torch body (1) to supply oxygen to the torch body (1).

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