Biogas biological desulfurization device

Abstract

The utility model relates to the technical field of biogas preparation, in particular to a biogas biological desulfurization device which comprises a desulfurization box, an air inlet pipe is fixedly installed in the middle of the desulfurization box, the top end of the air inlet pipe penetrates through the desulfurization box and is located outside the desulfurization box, and rectification mechanisms are arranged at the positions, located at the two ends of the air inlet pipe, of the desulfurization box; the base is fixedly mounted at the bottom end of the desulfurization box, and a pre-desulfurization mechanism is arranged between the base and the desulfurization box. The gas inlet pipe, the top plate, the partition plates with the grooves, the gas outlets and the top groove are used in cooperation, biogas is poured into the desulfurization box from the gas inlet pipe to be mixed with mixed liquid, after entering the gas inlet pipe, the biogas is sprayed into the desulfurization box from the gas outlets and then sequentially penetrates through the partition plates with the grooves, and the partition plates with the grooves are arranged in the desulfurization box. And the biogas is sprayed out from the top grooves at the two ends of the top plate after being subjected to desulfurization treatment, and is finally discharged from the top plate, so that the biogas is fully mixed with the mixed liquid.

Description

Technical Field

[0001] The utility model relates to the technical field of biogas preparation, in particular to a biogas biological desulfurization device. Background Technique

[0002] Biogas biological desulfurization is a technology that uses microorganisms to remove sulfides from biogas. Biogas is mainly produced by anaerobic digestion. Hydrogen sulfide not only has a strong odor but also is corrosive and harmful to the environment and equipment. Therefore, the desulfurization process is crucial for the safe utilization of biogas and its conversion into energy.

[0003] As disclosed in a biogas biological desulfurization device with the authorization announcement number CN220056715U, it includes a base and a desulfurization box detachably installed on the top of the base. The interior of the desulfurization box contains a mixed liquid. A box cover is installed on the top of the base in a matching manner. A biogas pipe is connected and installed at the center of the box cover. An exhaust hole is opened on the top surface of the box cover on one side of the biogas pipe. A slewing bearing is fixedly connected to the bottom end inside the desulfurization box, and a turntable is fixedly installed on the top of the slewing bearing. After adopting the above technical solution, the beneficial effect of the utility model is: using the blades of the water pump to stir the mixed liquid, and then using the impact of the ejected water flow to achieve the full fusion of the mixed liquid, effectively avoiding the aggregation of microorganisms, and then improving the biogas desulfurization effect.

[0004] Although the above patent can effectively avoid the aggregation of microorganisms, during the process of using the motor to control the rotation of the water spray pipe, centrifugal force will be generated in the mixed liquid. At this time, the biogas sprayed from the gas box will quickly move towards the inner wall direction of the separation box due to the action of centrifugal force, which may cause some biogas to not be fully mixed with the mixed liquid. Content of the Utility Model

[0005] The purpose of the utility model is to provide a biogas biological desulfurization device to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A biogas biological desulfurization device includes

[0008] a desulfurization box;

[0009] An air inlet pipe is fixedly installed in the middle of the desulfurization box. The top end of the air inlet pipe passes through the desulfurization box and is located outside the desulfurization box. Rectifying mechanisms are arranged at both ends of the air inlet pipe in the desulfurization box;

[0010] a base, the base is fixedly installed at the bottom end of the desulfurization box, and a pre-desulfurization mechanism is arranged between the base and the desulfurization box.

[0011] Preferably, the rectifying mechanism includes a top plate fixedly installed at the upper end inside the desulfurization tank. There are a number of grooved partitions arranged in a staggered manner between the lower end of the top plate and the bottom end inside the desulfurization tank. Both sides of the top of the top plate are provided with top grooves, and a number of air outlets are provided on both sides of the inner end of the inlet pipe located inside the desulfurization tank;

[0012] Preferably, exhaust pipes are provided on both sides of the top of the desulfurization tank;

[0013] Preferably, the pre-desulfurization mechanism includes a circulation pump arranged in the middle inside the base. The top of the circulation pump is provided with a water suction pipe, and the other end of the water suction pipe is arranged in the middle of the bottom end inside the desulfurization tank;

[0014] Preferably, the pre-desulfurization mechanism further includes a return pipe. One end of the return pipe is communicated with the other end of the circulation pump, and the other end of the return pipe passes through the desulfurization tank and is communicated with the upper end inside the inlet pipe;

[0015] Preferably, the bottom end of the inlet pipe and the top end of the water suction pipe are on the same central axis.

[0016] Compared with the prior art, the beneficial effects of the present utility model are:

[0017] 1. For this biogas biological desulfurization device, through the cooperation of the inlet pipe, top plate, grooved partitions, air outlets and top grooves, biogas is poured into the desulfurization tank from the inlet pipe and mixed with the mixed liquid. After the biogas enters the inside of the inlet pipe, it is sprayed into the desulfurization tank from a number of air outlets, and then sequentially passes through a number of grooved partitions. And the grooved partitions are arranged inside the desulfurization tank, which can facilitate the attachment of microorganisms. After the biogas desulfurization treatment, it is ejected from the top grooves at both ends of the top plate and finally discharged from the top plate, so that the biogas and the mixed liquid are fully mixed.

[0018] 2. For this biogas biological desulfurization device, through the cooperation of the inlet pipe, circulation pump, water suction pipe and return pipe, during the process of treating biogas, the circulation pump is started. The circulation pump pumps the mixed liquid inside the desulfurization tank away through the water suction pipe, and then pumps it into the return pipe, and then returns to the inside of the inlet pipe through the return pipe. By circulating the internal mixed liquid through the circulation pump, the accumulation of microorganisms can be avoided, and the biogas entering from the inlet pipe can be pre-desulfurized, thereby further improving the desulfurization efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the overall front view structural schematic diagram of the present utility model;

[0020] Figure 2 It is the overall sectional view structural schematic diagram of the present utility model;

[0021] Figure 3 For the present utility modelFigure 2 Enlarged schematic view at position A;

[0022] Figure 4 This is for the Figure 2 Enlarged schematic view at position B of the utility model.

[0023] In the figure: 1, desulfurization tank; 2, intake pipe; 3, base; 4, top plate; 5, grooved partition; 6, top groove; 7, air outlet; 8, exhaust pipe; 9, circulation pump; 10, water suction pipe; 11, return pipe. Specific implementation mode

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0025] As Figures 1-4 shown, a technical solution provided by the present utility model:

[0026] A biogas biological desulfurization device includes a desulfurization tank 1; an intake pipe 2 is fixedly installed in the middle of the desulfurization tank 1, the top end of the intake pipe 2 passes through the desulfurization tank 1 and is located outside the desulfurization tank 1, and rectifying mechanisms are arranged at both ends of the intake pipe 2 in the desulfurization tank 1. The rectifying mechanism includes a top plate 4, the top plate 4 is fixedly installed at the upper end inside the desulfurization tank 1, and a plurality of grooved partitions 5 are arranged in a staggered manner between the lower end of the top plate 4 and the inner bottom end of the desulfurization tank 1. A plurality of top grooves 6 are opened on both sides of the top end of the top plate 4, a plurality of air outlets 7 are opened on both sides of the inner end of the intake pipe 2 in the desulfurization tank 1, and exhaust pipes 8 are opened on both sides of the top end of the desulfurization tank 1;

[0027] In this embodiment, during use, biogas is poured into the desulfurization tank 1 from the intake pipe 2 to be mixed with the mixed liquid. After the biogas enters the interior of the intake pipe 2, it is sprayed into the desulfurization tank 1 from a plurality of air outlets 7, and then sequentially passes through a plurality of grooved partitions 5. And the grooved partitions 5 are arranged inside the desulfurization tank 1, which can facilitate the attachment of microorganisms. After the biogas desulfurization treatment, it is ejected from the top grooves 6 at both ends of the top plate 4 and finally discharged from the top plate 4, so that the biogas and the mixed liquid are fully mixed.

[0028] As Figure 3 and Figure 4As shown, the base 3 is fixedly installed at the bottom end of the desulfurization box 1, and a pre-desulfurization mechanism is arranged between the base 3 and the desulfurization box 1. The pre-desulfurization mechanism includes a circulation pump 9, and the circulation pump 9 is arranged in the middle of the inner side of the base 3. A water pumping pipe 10 is arranged at the top of the circulation pump 9, and the other end of the water pumping pipe 10 is arranged in the middle of the inner bottom end of the desulfurization box 1. The pre-desulfurization mechanism also includes a return pipe 11, one end of the return pipe 11 is connected to the other end of the circulation pump 9, and the other end of the return pipe 11 passes through the desulfurization box 1 and is connected to the upper end of the air inlet pipe 2, and the bottom end of the air inlet pipe 2 and the top end of the water pumping pipe 10 are on the same central axis;

[0029] In this embodiment, during the process of treating biogas, the circulation pump 9 is started. The circulation pump 9 extracts the mixed liquid inside the desulfurization box 1 through the pumping pipe 10, and then pumps it into the reflux pipe 11, and then refluxes it to the inside of the intake pipe 2 through the reflux pipe 11. The internal mixed liquid circulates through the circulation pump 9, which can avoid the accumulation of microorganisms, and the biogas entering from the intake pipe 2 can be pre-desulfurized, thereby further improving the desulfurization efficiency.

[0030] Working principle: When in use, the biogas is poured into the desulfurization box 1 from the air inlet pipe 2 and mixed with the mixed liquid. After the biogas enters the interior of the air inlet pipe 2, it is sprayed into the desulfurization box 1 from a plurality of air outlets 7, and then passes through a plurality of grooved partitions 5 in sequence. In addition, grooved partitions 5 are arranged inside the desulfurization box 1 to facilitate the attachment of microorganisms. After desulfurization treatment, the biogas is sprayed out from the top grooves 6 at both ends of the top plate 4, and finally discharged from the top plate 4. In the process of treating the biogas, the circulation pump 9 is started. The circulation pump 9 extracts the mixed liquid inside the desulfurization box 1 through the suction pipe 10, and then pumps it into the reflux pipe 11, and then refluxes to the interior of the air inlet pipe 2 through the reflux pipe 11. The internal mixed liquid is circulated by the circulation pump 9, which can avoid the accumulation of microorganisms, and the biogas entering from the air inlet pipe 2 can be pre-desulfurized, thereby further improving the desulfurization efficiency.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A biogas biological desulfurization device, characterized in that: include Desulfurization box (1); An air intake pipe (2) is fixedly installed in the middle of the desulfurization box (1), the top end of the air intake pipe (2) passes through the desulfurization box (1) and is located outside the desulfurization box (1), and the desulfurization box (1) is provided with a rectifying mechanism at both ends of the air intake pipe (2); A base (3), the base (3) being fixedly mounted on the bottom end of the desulfurization box (1), and a pre-desulfurization mechanism being arranged between the base (3) and the desulfurization box (1); The rectifying mechanism comprises a top plate (4), the top plate (4) being fixedly mounted on the upper end of the interior of the desulfurization box (1), a plurality of grooved partitions (5) being staggeredly arranged between the lower end of the top plate (4) and the inner bottom end of the desulfurization box (1), top grooves (6) being provided on both sides of the top end of the top plate (4), and a plurality of air outlets (7) being provided on both sides of one end of the air inlet pipe (2) located inside the desulfurization box (1).

2. A biogas biological desulfurization device according to claim 1, characterized in that: Exhaust pipes (8) are provided on both sides of the top of the desulfurization box (1).

3. A biogas biological desulfurization device according to claim 1, characterized in that: The pre-desulfurization mechanism comprises a circulation pump (9), which is arranged in the middle of the inner side of the base (3), and a water pump (10) is arranged at the top of the circulation pump (9), and the other end of the water pump (10) is arranged in the middle of the inner bottom end of the desulfurization box (1).

4. A biogas biological desulfurization device according to claim 3, characterized in that: The pre-desulfurization mechanism also includes a reflux pipe (11), one end of which is connected to the other end of the circulation pump (9), and the other end of which passes through the desulfurization box (1) and is connected to the interior of the upper end of the intake pipe (2).

5. A biogas biological desulfurization device according to claim 3, characterized in that: The bottom end of the air inlet pipe (2) and the top end of the water extraction pipe (10) are located on the same central axis.

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