Biogas treatment equipment for biodegradation of hydrogen sulfide

Abstract

The utility model relates to biodegradation hydrogen sulfide biogas treatment equipment, which belongs to the technical field of biological desulfurization and comprises a desulfurization tower and a shell, an aeration component and a spraying component are mounted in the shell, the aeration component is mounted in the center of the bottom of a liquid storage cavity, and the spraying component is mounted in the middle of the desulfurization tower; the spraying assembly comprises an upper spraying pipe, a straight spraying pipe, a lower spraying pipe and liquid inlet pipes which are communicated with the upper spraying pipe, the straight spraying pipe and the lower spraying pipe from top to bottom, the upper spraying pipe, the straight spraying pipe and the lower spraying pipe are connected together through a supporting rod and an auxiliary rod which is horizontally fixed around the supporting rod, the outer wall of the straight spraying pipe just abuts against the inner wall of the shell, and the diameter of the upper spraying pipe and the diameter of the lower spraying pipe are smaller than that of the straight spraying pipe. According to the utility model, the spraying assembly with a three-dimensional structure and the aeration assembly with the spoiler blades are matched with the baffle plate and the filler frame which can be mounted in a self-defined position, so that the space in the tower can be effectively utilized, the contact between biological desulfurization liquid and sulfur-containing waste gas is increased, and the desulfurization efficiency is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of biological desulfurization technology, and in particular to a biodegradable hydrogen sulfide biogas treatment device. Background Technology

[0002] Hydrogen sulfide and other gases in waste gas or biogas not only corrode pipelines but also adversely affect human health. Therefore, hydrogen sulfide must be removed before comprehensive utilization. Biological desulfurization is widely used for hydrogen sulfide removal. In a biological desulfurization tower, sulfur-containing waste gas passes through a packing layer and comes into contact with microorganisms in the biological desulfurization liquid. The microorganisms use the sulfides in the waste gas as energy and sulfur source, oxidizing them into harmless substances such as sulfates.

[0003] Existing biological desulfurization towers cannot effectively utilize their internal space. Based on this, this invention designs a biodegradable hydrogen sulfide biogas treatment device that can effectively utilize the space inside the tower, increase the contact between the biological desulfurization liquid and the sulfur-containing waste gas, and effectively improve the desulfurization efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a biodegradable hydrogen sulfide biogas treatment device to solve the problems in the prior art.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] A biodegradable hydrogen sulfide biogas treatment device includes a desulfurization tower and an outer shell. An aeration component and a spraying component are installed inside the outer shell. The aeration component is installed at the bottom center of the liquid storage chamber, and the spraying component is installed in the middle of the desulfurization tower. The spraying component includes an upper spray pipe, a straight spray pipe, and a lower spray pipe from top to bottom, which are respectively connected to their respective liquid inlet pipes. The three are connected together by a support rod and a secondary rod that is horizontally fixed around the support rod. The outer wall of the straight spray pipe just abuts against the inner wall of the outer shell, and the diameters of the upper spray pipe and the lower spray pipe are smaller than those of the straight spray pipe.

[0007] The aeration assembly includes a circular aeration pipe with several aeration nozzles mounted vertically upwards on it. One end of the aeration pipe is connected to an air inlet pipe, and a baffle is installed in the center of the aeration pipe. The baffle is connected to a drive mechanism.

[0008] Both the upper and lower spray pipes are equipped with inclined nozzles, which are tilted towards the support rod; the straight spray pipes are equipped with straight nozzles at both the top and bottom.

[0009] The desulfurization tower consists of several shell sections, which are connected by flange seals. The top of the shell is semi-circular, and the exhaust pipe is connected to the center of the top.

[0010] The liquid storage chamber is connected to the drain pipe; the liquid storage chamber is also connected to the oxygen supply pipe and the replenishment pipe.

[0011] The desulfurization tower is also equipped with baffles and a packing frame, with several perforated holes on the top and bottom of the packing frame.

[0012] The inner wall of the outer shell is provided with several limiting blocks to support the direct spray pipe, packing frame and baffle.

[0013] This utility model has the following beneficial effects:

[0014] This invention utilizes a three-dimensional spray assembly and an aeration assembly with turbulence-inducing blades, along with baffles and packing frames that can be installed in custom positions. This effectively utilizes the space inside the tower, increases the contact between the biological desulfurization liquid and the sulfur-containing waste gas, and effectively improves the desulfurization efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the internal structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the spray assembly structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the aeration component structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of Embodiment 2 of the present invention;

[0020] Figure 5 This is a schematic diagram of the packing frame structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the baffle structure of this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Outer shell; 2. Flange; 3. Exhaust pipe; 4. Drain pipe; 5. Aeration assembly; 51. Aeration pipe; 52. Air inlet pipe; 53. Aeration nozzle; 54. Baffle blade; 55. Drive mechanism; 6. Spray assembly; 61. Support rod; 62. Sub-rod; 63. Liquid inlet pipe; 64. Upper spray pipe; 65. Straight spray pipe; 66. Lower spray pipe; 67. Straight discharge nozzle; 68. Inclined nozzle; 7. Packing frame; 71. Hollow hole; 8. Baffle plate; 9. Liquid storage chamber. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. It should be understood that the terms "upper", "middle", "outer", "inner", "lower" etc., which indicate orientation or positional relationship, are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0025] The attached figures illustrate specific embodiments of this utility model, such as... Figures 1-6 As shown, this utility model is a biodegradable hydrogen sulfide biogas treatment device, including a desulfurization tower and an outer shell 1. An aeration assembly 5 and a spray assembly 6 are installed inside the outer shell 1. The aeration assembly 5 is installed at the bottom center of the liquid storage chamber 9, and the spray assembly 6 is installed in the middle of the desulfurization tower. The spray assembly 6 includes an upper spray pipe 64, a straight spray pipe 65, and a lower spray pipe 66 from top to bottom, each connected to its respective inlet pipe 63. The three are connected together by a support rod 61 and a secondary rod 62 horizontally fixed around the support rod 61. The outer wall of the straight spray pipe 65 abuts against the inner wall of the outer shell 1. The diameters of the upper spray pipe 64 and the lower spray pipe 65 are smaller than those of the straight spray pipe 65. The spray pipes are annular. Inclined nozzles 68 are installed above and below the upper spray pipe 64 and the lower spray pipe 66. The two inclined nozzles 68 at the same position form a V-shaped nozzle structure, with their openings facing obliquely upwards towards the support rod 61. Straight nozzles 67 are installed above and below the straight spray pipe 65. The number of nozzles and the size and spacing of the spray pipes are determined according to the height and diameter of the desulfurization tower. The combined use of inclined nozzles 68 and straight nozzles 67 enables the biological desulfurization liquid to form a three-dimensional spraying effect inside the desulfurization tower, with a wider spray coverage area, ensuring sufficient contact between sulfur-containing gas and biological desulfurization liquid, and improving desulfurization efficiency.

[0026] The aeration assembly 5 includes a circular aeration pipe 51, with several aeration nozzles 53 vertically mounted on the aeration pipe 51. One end of the aeration pipe 51 is connected to an air inlet pipe 52, and a baffle 54 is installed in the center of the aeration pipe 51. The baffle 54 is connected to a drive mechanism 55, which has a waterproof outer shell. The waterproof outer shell and a sealing gasket are fixed to the bottom of the storage chamber 9 with bolts. The storage chamber 9 is used to collect desulfurization liquid. The storage chamber 9 is connected to a drain pipe 4 for transferring the desulfurization liquid. The storage chamber 9 is also connected to an oxygen supply pipe and a replenishment pipe to replenish oxygen and microorganisms in the biological desulfurization liquid.

[0027] The desulfurization tower consists of several outer shell sections 1, each sealed and connected by flanges 2. During industrial manufacturing, the flange connection positions can be determined according to requirements, such as placing them above the spray pipes for easy disassembly and maintenance. The top of the outer shell 1 is semi-circular, with an exhaust pipe 3 connected to the center for discharging the desulfurized gas. Several supporting limit blocks 10 are provided on the inner wall of the outer shell 1, with the direct spray pipe 67, packing frame 7, and baffles 8 placed on the corresponding limit blocks 10.

[0028] The desulfurization tower is also equipped with baffles 8 and packing frames 7. The packing frames 7 have several hollow holes 71 on the top and bottom. The packing frames 7 are used to hold packing materials such as biochemical balls, which can slow down the flow of gas and liquid and increase the contact time between them.

[0029] The spray assembly 6 of this invention is located in the middle section of the desulfurization tower, and the baffle plate 8 and the packing frame 7 are respectively installed above and below the spray assembly 6. A second embodiment of this invention is described below. Figure 4 If the desulfurization tower is small in volume, a packing frame 7 can be installed between the spray pipes.

[0030] The above two embodiments are only for primary desulfurization. In actual use, if the desulfurization effect is not ideal or there are other reasons, this device can also be installed in other desulfurization processes. For example, a cyclone separator can be installed in front of this utility model to separate solids in the exhaust gas; or a waste liquid recovery tank can be installed behind this utility model for the recycling of biological desulfurization liquid, etc.

[0031] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to specific implementation methods.

Claims

1. A biodegradable hydrogen sulfide biogas treatment device, comprising a desulfurization tower, characterized in that: The desulfurization tower includes an outer shell (1), and an aeration assembly (5) and a spray assembly (6) are installed inside the outer shell (1). The aeration assembly (5) is installed at the bottom center of the liquid storage chamber (9), and the spray assembly (6) is installed in the middle of the desulfurization tower. The spray assembly (6) includes an upper spray pipe (64), a straight spray pipe (65), and a lower spray pipe (66) from top to bottom, which are connected to their respective liquid inlet pipes (63). The three are connected together by a support rod (61) and a secondary rod (62) that is horizontally fixed around the support rod (61). The outer wall of the straight spray pipe (65) is just abutted against the inner wall of the outer shell (1). The diameters of the upper spray pipe (64) and the lower spray pipe (65) are smaller than those of the straight spray pipe (65).

2. The biodegradable hydrogen sulfide biogas treatment equipment according to claim 1, characterized in that: The aeration assembly (5) includes a circular aeration pipe (51), several aeration nozzles (53) are installed vertically upward on the aeration pipe (51), one end of the aeration pipe (51) is connected to the air inlet pipe (52), and a baffle (54) is installed in the center of the aeration pipe (51). The baffle (54) is connected to the drive mechanism (55).

3. The biodegradable hydrogen sulfide biogas treatment equipment according to claim 1, characterized in that: The upper spray pipe (64) and the lower spray pipe (66) are both equipped with inclined nozzles (68), which are inclined towards the support rod (61); the straight spray pipe (65) is equipped with straight nozzles (67) on both the upper and lower sides.

4. The biodegradable hydrogen sulfide biogas treatment equipment according to claim 1, characterized in that: The desulfurization tower consists of several shell sections (1), which are sealed and connected by flanges (2); the top of the shell (1) is semi-circular, and the exhaust pipe (3) is connected to the center of the top.

5. The biodegradable hydrogen sulfide biogas treatment equipment according to claim 1, characterized in that: The liquid storage chamber (9) is connected to the drain pipe (4); the liquid storage chamber (9) is also connected to the oxygen supply pipe and the liquid replenishment pipe.

6. The biodegradable hydrogen sulfide biogas treatment equipment according to claim 1, characterized in that: The desulfurization tower is also equipped with baffles (8) and packing frame (7), and the packing frame (7) has several hollow holes (71) on the top and bottom.

7. The biodegradable hydrogen sulfide biogas treatment equipment according to claim 6, characterized in that: The inner wall of the outer shell (1) is provided with several limiting blocks (10) for supporting the direct spray pipe (67), the packing frame (7), and the baffle (8).

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