Biogas desulfurization device

Abstract

The utility model discloses a biogas desulfurization device and relates to the technical field of desulfurization chemical industry. The desulfurization tank comprises a desulfurization tank body, supporting legs are arranged at the bottom of the desulfurization tank body, a fixing plate is arranged in the desulfurization tank body, and the interior of the desulfurization tank body is divided into an upper cavity and a lower cavity by the fixing plate. According to the utility model, biogas is input into the desulfurization tank body through the gas inlet pipe, the biogas is in contact with a desulfurization solution in the lower cavity through the plurality of vent holes of the annular bin, the contact time is prolonged, and the stirring rod is driven by the driving motor to stir the desulfurization solution, so that the reaction time of the biogas containing hydrogen sulfide and the desulfurization solution is prolonged; the biogas subjected to single desulfurization is in contact with the biogas in the air through a fixed plate and a spray head of a spraying ring for secondary desulfurization, so that a desulfurization solution enters a plurality of groups of spiral pipes through a second connecting pipe and is in contact with the biogas in the spiral pipes again for desulfurization; and a good desulfurization effect is achieved.

Description

Technical Field

[0001] The utility model belongs to the field of desulfurization chemical industry, and specifically relates to a biogas desulfurization device. Background Art

[0002] The biogas in the prior art is a combustible gas produced by the fermentation of various organic substances under air-tight conditions (anaerobic conditions) and at suitable temperatures and pH values ​​through the fermentation of microorganisms. In the process of producing biogas, a large amount of hydrogen sulfide is also produced, and hydrogen sulfide is a toxic gas. Hydrogen sulfide needs to be removed from biogas before use. When removing hydrogen sulfide, the biogas is filled into a desulfurization tank containing desulfurization liquid through an air inlet pipe. After the biogas containing hydrogen sulfide undergoes chemical reactions or microbial treatment in the desulfurization liquid, hydrogen sulfide is removed from the biogas, and the biogas is discharged from the outlet pipe of the desulfurization tank.

[0003] A Chinese patent application numbered CN214781688U discloses a biogas desulfurization device, which relates to the field of desulfurization chemical technology, and comprises a desulfurization tank, wherein a desulfurization space is provided inside the desulfurization tank, a desulfurization pool for accommodating desulfurization liquid is arranged at the bottom of the desulfurization space, an air inlet pipe and an air outlet pipe are fixedly connected to the circumferential outer wall of the desulfurization tank, a rotating shaft is rotatably arranged on the bottom surface of the desulfurization pool, a driving member for driving the rotating shaft to rotate is arranged on the desulfurization tank, a stirring member is arranged on the circumferential side wall of the rotating shaft, and the stirring member is located in the desulfurization space; by utilizing the concave arc-shaped side surface of the stirring member, a very strong radial displacement and dispersion force are formed during the stirring process, thereby prolonging the reaction time between the biogas containing hydrogen sulfide and the desulfurization liquid, thereby enhancing the desulfurization intensity of the biogas containing hydrogen sulfide and improving the desulfurization effect of the biogas containing hydrogen sulfide.

[0004] The above desulfurization device inputs biogas into the desulfurization tank of the desulfurization tank through the air inlet pipe, wherein the biogas at the outlet of the air inlet pipe rises as soon as it contacts the desulfurization liquid in the desulfurization tank, and the reaction time is short. In addition, the biogas rises quickly and the contact time with the desulfurization liquid sprayed from the spray head is short, which is not convenient for achieving effective desulfurization effect.

[0005] In view of this, the present utility model is proposed. Utility Model Content

[0006] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a biogas desulfurization device.

[0007] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0008] A biogas desulfurization device comprises a desulfurization tank body, a support leg is installed at the bottom of the desulfurization tank body, a fixing plate is installed inside the desulfurization tank body, and the fixing plate divides the desulfurization tank body into an upper cavity and a lower cavity;

[0009] The lower cavity is provided with an annular bin, one side of which is provided with an air intake pipe, and the air intake pipe passes through the desulfurization tank body and is located outside it, a plurality of spiral tubes are installed on the fixed plate, a driving motor is installed at the bottom of the desulfurization tank body, a transmission rod is installed on the output shaft of the driving motor, a plurality of stirring rods are installed on the circumference of the transmission rod, and the stirring rods are located in the lower cavity.

[0010] Optionally, a first through groove is opened on one side of the annular bin, the transmission rod is located in the first through groove, a plurality of ventilation holes are opened on one side of the annular bin, and the annular bin is located below the stirring rod.

[0011] Optionally, a pump body is installed on one side of the desulfurization tank body, and a liquid inlet pipe is installed at the liquid inlet of the pump body. The liquid inlet pipe passes through the desulfurization tank body and is located in the lower cavity. A liquid outlet is installed at the pump body. A liquid outlet pipe is installed on one side of the liquid outlet pipe. A first connecting pipe is installed on one end of the liquid outlet pipe. A one-way valve is installed on one end of the one-way valve. A second connecting pipe is installed on one side of the one-way valve. The second connecting pipe is connected to multiple groups of spiral tubes. A spray ring is installed on one side of the fixed plate. Multiple nozzles are installed on the spray ring. The first connecting pipe is connected to the spray ring.

[0012] Optionally, a second through groove is provided at the bottom of the fixed plate, the transmission rod is located in the second through groove, a plurality of air inlet holes are provided at the bottom of the fixed plate, the air inlet holes are connected to a plurality of groups of spiral tubes, a plurality of air outlet holes are provided on one side of the second connecting tube, a fan blade is installed at the top of the transmission rod, the fan blade is located in the upper cavity, a plurality of groups of spiral tubes are located in the upper cavity, and an air outlet pipe is installed at the top of the desulfurization tank body.

[0013] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art. Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described below at the same time:

[0014] 1. When the biogas desulfurization device is in use, biogas is input into the desulfurization tank through the air inlet pipe. The biogas contacts the desulfurization solution in the lower cavity through multiple air holes in the annular bin to increase the contact time. The driving motor drives the stirring rod to stir the desulfurization solution to extend the reaction time between the biogas containing hydrogen sulfide and the desulfurization liquid, thereby enhancing the desulfurization intensity of the biogas containing hydrogen sulfide. The biogas after a single desulfurization contacts the biogas in the air through the fixed plate and the nozzle of the spray ring for desulfurization again.

[0015] 2. The biogas desulfurization device allows the desulfurized biogas to enter the multiple groups of spiral tubes through the air inlet holes, and transports the desulfurization solution in the lower cavity to the second connecting tube through the liquid outlet pipe through the pump body. Thus, the desulfurization solution enters the multiple groups of spiral tubes through the second connecting tube and contacts the biogas inside them again for desulfurization, thereby achieving a good desulfurization effect.

[0016] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0018] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure inside the desulfurization tank body of the utility model embodiment;

[0020] Figure 3 It is a structural schematic diagram of the overall cross-sectional view of an embodiment of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the fixing plate of an embodiment of the utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the spiral tube in the embodiment of the utility model;

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1-desulfurization tank body, 2-support legs, 3-pump body, 4-liquid outlet pipe, 5-fixed plate, 6-lower cavity, 7-upper cavity, 8-annular bin, 9-inlet pipe, 10-vent, 11-first through groove, 12-drive motor, 13-transmission rod, 14-stirring rod, 15-fan blade, 16-spray ring, 17-spray head, 18-first connecting pipe, 19-check valve, 20-second connecting pipe, 21-spiral pipe, 22-second through groove, 23-inlet hole, 24-outlet hole, 25-outlet pipe, 26-liquid inlet pipe.

[0025] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0026] The utility model will now be further described in detail with reference to the accompanying drawings.

[0027] See also Figure 1-5 As shown, in this embodiment, a biogas desulfurization device is provided, including a desulfurization tank body 1, a support leg 2 is installed at the bottom of the desulfurization tank body 1, a fixing plate 5 is installed in the desulfurization tank body 1, and the fixing plate 5 divides the desulfurization tank body 1 into an upper cavity 7 and a lower cavity 6;

[0028] The lower cavity 6 is provided with an annular bin 8, an air intake pipe 9 is installed on one side of the annular bin 8, and the air intake pipe 9 passes through the desulfurization tank body 1 and is located outside it, a plurality of spiral tubes 21 are installed on the fixed plate 5, a driving motor 12 is installed at the bottom of the desulfurization tank body 1, a transmission rod 13 is installed on the output shaft of the driving motor 12, and a plurality of stirring rods 14 are installed on the surrounding side of the transmission rod 13, and the stirring rods 14 are located in the lower cavity 6.

[0029] One aspect of the application of this embodiment is as follows: when in use, biogas is input into the desulfurization tank body 1 through the air inlet pipe 9, and the biogas contacts the desulfurization solution in the lower cavity 6 through the multiple air vents 10 of the annular bin 8 to increase the contact time, and the desulfurization solution is stirred by the driving motor 12 to drive the stirring rod 14 to extend the reaction time between the biogas containing hydrogen sulfide and the desulfurization liquid, thereby enhancing the desulfurization intensity of the biogas containing hydrogen sulfide, and the biogas after a single desulfurization contacts the biogas in the air through the fixed plate 5 through the nozzle 17 of the spray ring 16 for desulfurization again.

[0030] In this embodiment, a first through groove 11 is formed on one side of the annular bin 8 , and a transmission rod 13 is located in the first through groove 11 . A plurality of vent holes 10 are formed on one side of the annular bin 8 , and the annular bin 8 is located below the stirring rod 14 .

[0031] A pump body 3 is installed on one side of the desulfurization tank body 1 of this embodiment, and a liquid inlet pipe 26 is installed at the liquid inlet of the pump body 3. The liquid inlet pipe 26 passes through the desulfurization tank body 1 and is located in the lower cavity 6. A liquid outlet pipe 4 is installed at the liquid outlet of the pump body 3, and a first connecting pipe 18 is installed on one side of the liquid outlet pipe 4. A one-way valve 19 is installed at one end of the liquid outlet pipe 4, and a second connecting pipe 20 is installed on one side of the one-way valve 19. The second connecting pipe 20 is connected to multiple groups of spiral tubes 21. A spray ring 16 is installed on one side of the fixed plate 5, and multiple nozzles 17 are installed on the spray ring 16. The first connecting pipe 18 is connected to the spray ring 16.

[0032] In this embodiment, a second through groove 22 is provided at the bottom of the fixed plate 5, and the transmission rod 13 is located in the second through groove 22. A plurality of air inlet holes 23 are provided at the bottom of the fixed plate 5, and the air inlet holes 23 are connected to the plurality of spiral tubes 21. A plurality of air outlet holes 24 are provided on one side of the second connecting tube 20. A fan blade 15 is installed at the top of the transmission rod 13, and the fan blade 15 is located in the upper cavity 7. The plurality of spiral tubes 21 are located in the upper cavity 7. An air outlet pipe 25 is installed at the top of the desulfurization tank body 1.

[0033] The present invention is not limited to the above-mentioned implementation modes. Anyone should be aware of the structural changes made under the inspiration of the present invention. Any technical solution that is the same or similar to the present invention falls within the protection scope of the present invention. The technology, shape, and structure that are not described in detail in the present invention are all known technologies.

Claims

1. A biogas desulfurization device, characterized in that: include: A desulfurization tank body (1), wherein a support leg (2) is installed at the bottom of the desulfurization tank body (1), and a fixing plate (5) is installed inside the desulfurization tank body (1), wherein the fixing plate (5) divides the desulfurization tank body (1) into an upper cavity (7) and a lower cavity (6) from top to bottom; The lower cavity (6) is provided with an annular bin (8), an air intake pipe (9) is installed on one side of the annular bin (8), and the air intake pipe (9) passes through the desulfurization tank body (1) and is located outside the desulfurization tank body; a plurality of groups of spiral tubes (21) are installed on the fixed plate (5); a driving motor (12) is installed at the bottom of the desulfurization tank body (1); a transmission rod (13) is installed on the output shaft of the driving motor (12); a plurality of stirring rods (14) are installed on the peripheral side of the transmission rod (13); and the stirring rods (14) are located in the lower cavity (6).

2. A biogas desulfurization device according to claim 1, characterized in that: A first through groove (11) is provided on one side of the annular bin (8), a transmission rod (13) is located in the first through groove (11), a plurality of vent holes (10) are provided on one side of the annular bin (8), and the annular bin (8) is located below the stirring rod (14).

3. A biogas desulfurization device according to claim 1, characterized in that: A pump body (3) is installed on one side of the desulfurization tank body (1); a liquid inlet of the pump body (3) is installed with a liquid inlet pipe (26); the liquid inlet pipe (26) passes through the desulfurization tank body (1) and is located in the lower cavity (6); a liquid outlet pipe (4) is installed at the liquid outlet of the pump body (3); a first connecting pipe (18) is installed on one side of the liquid outlet pipe (4).

4. A biogas desulfurization device according to claim 3, characterized in that: A one-way valve (19) is installed at one end of the liquid outlet pipe (4), a second connecting pipe (20) is installed on one side of the one-way valve (19), the second connecting pipe (20) is connected to a plurality of spiral pipes (21), a spray ring (16) is installed on one side of the fixed plate (5), a plurality of spray heads (17) are installed on the spray ring (16), and the first connecting pipe (18) is connected to the spray ring (16).

5. A biogas desulfurization device according to claim 1, characterized in that: A second through slot (22) is provided at the bottom of the fixed plate (5), the transmission rod (13) is located in the second through slot (22), and a plurality of air inlet holes (23) are provided at the bottom of the fixed plate (5), the air inlet holes (23) being connected to the plurality of spiral tubes (21).

6. A biogas desulfurization device according to claim 5, characterized in that: A plurality of air outlet holes (24) are provided on one side of the second connecting pipe (20), a fan blade (15) is installed at the top of the transmission rod (13), the fan blade (15) is located in the upper cavity (7), a plurality of groups of spiral tubes (21) are located in the upper cavity (7), and an air outlet pipe (25) is installed at the top of the desulfurization tank body (1).

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