Biomass gas tail gas carbon dioxide purification device

Abstract

The utility model discloses a biomass gas tail gas carbon dioxide purification device, and particularly relates to the field of tail gas treatment, the biomass gas tail gas carbon dioxide purification device comprises a boiler, a support and a purification barrel, the support is welded on one side of the boiler, the purification barrel connected with the smoke exhaust position of the boiler is supported on the support, a smoke inlet pipe is arranged at the bottom of one side of the purification barrel, and an exhaust pipe is arranged at the top of the other side of the purification barrel. A plurality of cleaning brushes matched with the purification assembly are mounted on the inner wall of the purification barrel; a spraying cover is mounted at the top end of the purification barrel; a water pump is mounted at the top end of the spraying cover; a drainage pipe is mounted at the bottom end of the purification barrel; according to the utility model, tar in exhausted tail gas can be treated, so that a catalyst carrier is prevented from being wrapped, and the treatment effect and efficiency of carbon dioxide are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tail gas treatment, and more specifically, to a biomass fuel gas tail gas carbon dioxide purification device. Background Art

[0002] Biomass gas is the conversion of crop straw, forest waste, edible fungus residue, livestock manure and all combustible substances as raw materials into combustible energy.

[0003] As fossil energy is decreasing and environmental pollution is increasing, it is urgent to find new renewable energy and improve energy combustion efficiency. Based on the current status of gas burners at home and abroad, the characteristics and application scope of various gas burners are summarized, and the basic ideas and requirements of biomass gas burner design are analyzed in combination with biomass gas purification process, gas composition and characteristics. The structure and characteristics of several typical biomass gas burners are elaborated in detail, and the shortcomings of biomass gas burner design and the problems of gas combustion are proposed. In order to further improve the utilization rate of biomass gas, combined with my country's agricultural and rural production, the direction suitable for the development of biomass gas in my country is proposed.

[0004] When biomass gas is burned in a boiler, exhaust gas is emitted. The exhaust gas contains a large amount of carbon dioxide, which will pollute the air. In order to protect the environment, a tail gas carbon dioxide purification device is needed to reduce the emission of carbon dioxide from the biomass gas tail gas in the boiler. However, the existing carbon dioxide purification device only has one layer of filter plate, and the internal air flow rate is low, and the carbon dioxide cannot be fully reacted, resulting in low carbon dioxide purification efficiency and failure to achieve the expected effect.

[0005] The Chinese patent with patent publication number CN215822787U discloses a biomass gas exhaust carbon dioxide purification device, including a boiler and a purification device; through the setting of the purification device, a bracket is used to fix the position of the purification chamber on the right side of the boiler, a connecting pipe is used to discharge the exhaust gas in the boiler into the purification chamber, a catalyst carrier is arranged inside the rotating plate, and the rotating plate is provided with a plurality of holes, carbon dioxide in the exhaust gas reacts with the catalyst inside the catalyst carrier through the holes to consume carbon dioxide, a motor is arranged inside the motor box, the motor drives the rotating shaft to rotate, and then drives the rotating plate to rotate, four rotating plates rotate at the same time, an arc-shaped support rod is used to fix the position of the four rotating plates, and at the same time plays a reinforcement effect, the catalyst carrier is arranged inside the rotating plate, and the rotating plate rotates so that the carbon dioxide fully contacts the catalyst in the catalyst carrier, thereby consuming a large amount of carbon dioxide, and the above-mentioned setting ultimately achieves a high carbon dioxide purification efficiency.

[0006] However, when this structure is actually used, the carbon dioxide gas discharged when the biomass gas is burned will be mixed with tar produced by incomplete combustion, and this tar is easy to adhere to the catalyst carrier, thereby affecting the catalytic effect, thereby reducing the efficiency and effect of carbon dioxide treatment. Therefore, a biomass gas exhaust carbon dioxide purification device is proposed. Utility Model Content

[0007] In order to overcome the above-mentioned defects of the prior art, the utility model provides a biomass fuel gas tail gas carbon dioxide purification device to solve the problems raised in the above-mentioned background technology.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a biomass fuel gas exhaust carbon dioxide purification device, comprising a boiler, a bracket and a purification barrel, a bracket is welded on one side of the boiler, and the bracket supports a purification barrel connected to the boiler exhaust, a smoke inlet pipe is provided at the bottom of one side of the purification barrel, an exhaust pipe is provided at the top of the other side of the purification barrel, a purification component is provided inside the purification barrel, a plurality of cleaning brushes that cooperate with the purification component are installed on the inner wall of the purification barrel, a spray cover is installed on the top of the purification barrel, a water pump is installed on the top of the spray cover, a drain pipe is installed at the bottom of the purification barrel, a floating component is installed in the drain pipe, and a drain outlet is provided on one side of the bottom of the drain pipe.

[0009] The exhaust gas generated by the combustion in the boiler enters the purification barrel from the smoke inlet pipe, and the water pump draws cleaning liquid to spray out from the spray cover, so that the tar attached to the surface of the purification component during the reciprocating rotation is cleaned, and at the same time, the outside of the purification component is cleaned with a cleaning brush to maintain the cleanliness of the surface of the catalyst carrier tube, thereby improving the treatment effect and efficiency of the carbon dioxide in the exhaust gas. As the cleaning liquid accumulates in the purification barrel, the liquid level rises, causing one end of the floating component to rise, and the drain port of the drain pipe is opened for automatic drainage, so that the cleaning liquid can be accumulated to a certain height in the purification barrel, so that when the exhaust gas enters, it can first enter the cleaning liquid for a purification, and then cooperate with the catalyst carrier tube for catalysis, thereby further improving the thoroughness of the carbon dioxide treatment.

[0010] Preferably, spray holes are evenly opened at the bottom end of the spray cover, and each of the spray holes is connected to the water delivery end of the water pump.

[0011] Preferably, the inner wall of the purification barrel is evenly provided with a plurality of installation grooves in an annular shape, and a cleaning brush is installed in each of the installation grooves.

[0012] Preferably, the purification assembly comprises a catalyst carrier cylinder, which is coaxially mounted in the purification barrel, and the outside of the catalyst carrier cylinder is slidably matched with each cleaning brush;

[0013] A base frame, the base frame being welded to the bottom end of the catalyst carrier cylinder;

[0014] The motor is installed at the bottom of the purification barrel, and the output end of the motor is connected to the bottom frame.

[0015] Preferably, a water inlet pipe and a through pipe are respectively provided at both ends of the drainage pipe, the top of the water inlet pipe is higher than the top of the smoke inlet pipe, and a plurality of through holes are evenly opened on the through pipe.

[0016] Preferably, the floating assembly includes a float, and the float is vertically inserted into the through pipe;

[0017] A connecting rope, one end of which is connected to the bottom of the float;

[0018] The float plug is arranged at the bottom end of the water inlet pipe, and the float plug is slidably connected to the inner wall of the drain pipe, the float plug is located at one side of the drain outlet, and the bottom end of the float plug is connected to the other end of the connecting rope.

[0019] Technical effects and advantages of the utility model:

[0020] 1. Through the arrangement of the catalyst carrier cylinder, the base frame, the motor, the water pump, the spray cover and the cleaning brush, compared with the prior art, the cleaning liquid is drawn by the water pump and sprayed from the spray cover, so that the tar attached to the surface of the purification component during the reciprocating rotation is cleaned, and the cleaning brush is used to clean the outside of the purification component, thereby maintaining the cleanliness of the surface of the catalyst carrier cylinder, thereby improving the treatment effect and treatment efficiency of the catalyst carrier cylinder on carbon dioxide;

[0021] 2. Through the arrangement of the drain pipe, drain outlet, float, connecting rope and float plug, compared with the prior art, by spraying the cleaning liquid inside the purification barrel, the liquid level in the purification barrel can be raised, so that the float floats up, and the float plug is pulled by the connecting rope to make the float plug drop, and the drain outlet is opened for automatic drainage, so that the water level inside the purification barrel can be limited. At the same time, the exhaust gas that is easy to enter can first be processed once through the cleaning liquid, thereby improving the treatment effect of the exhaust gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0023] Figure 2 It is a schematic diagram of the overall structure of the purification barrel of the utility model.

[0024] Figure 3 It is a schematic diagram of the internal structure of the purification barrel of the utility model.

[0025] Figure 4 It is a schematic diagram of the cross-sectional structure of the purification barrel of the utility model.

[0026] Figure 5 It is a structural schematic diagram of the purification component of the utility model.

[0027] Figure 6 It is a structural schematic diagram of the floating assembly of the utility model.

[0028] The accompanying drawings are marked as follows: 1. boiler; 2. bracket; 3. purification barrel; 4. spray cover; 5. water pump; 6. smoke inlet pipe; 7. exhaust pipe; 8. purification component; 801. catalyst carrier cylinder; 802. base frame; 803. motor; 9. drain pipe; 10. cleaning brush; 11. floating component; 1101. float; 1102. connecting rope; 1103. float plug; 12. drain outlet. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] As attached Figure 1-6 A biomass fuel gas tail gas carbon dioxide purification device shown in the figure comprises a boiler 1, a bracket 2 and a purification barrel 3, wherein a bracket 2 is welded on one side of the boiler 1, and a purification barrel 3 connected to the smoke exhaust of the boiler 1 is supported on the bracket 2, a smoke inlet pipe 6 is provided at the bottom of one side of the purification barrel 3, and an exhaust pipe 7 is provided at the top of the other side of the purification barrel 3, a purification component 8 is provided inside the purification barrel 3, and a plurality of cleaning brushes 10 cooperating with the purification component 8 are installed on the inner wall of the purification barrel 3, a spray cover 4 is installed at the top of the purification barrel 3, a water pump 5 is installed at the top of the spray cover 4, a drain pipe 9 is installed at the bottom of the purification barrel 3, a floating component 11 is installed in the drain pipe 9, and a drain port 12 is provided on one side of the bottom end of the drain pipe 9, and spray holes are evenly opened at the bottom of the spray cover 4, and each of the spray holes is connected to the water delivery end of the water pump 5, and a plurality of mounting grooves are evenly opened on the inner wall of the purification barrel 3 in an annular shape, and a cleaning brush 10 is installed in each of the mounting grooves.

[0031] During specific implementation, the exhaust gas generated by the combustion in the boiler 1 enters the purification barrel 3 from the smoke inlet pipe 6, and the water pump 5 draws cleaning liquid and sprays it from the spray cover 4, so that the tar attached to the surface of the purification component 8 during the reciprocating rotation is cleaned, and at the same time, the cleaning brush 10 is used to clean the outside of the purification component 8, so as to maintain the cleanliness of the surface of the catalyst carrier tube 801, thereby improving the treatment effect and efficiency of the carbon dioxide in the exhaust gas. As the cleaning liquid accumulates in the purification barrel 3, the liquid level rises, causing one end of the floating component 11 to rise, and the drain port 12 of the drain pipe 9 is opened for automatic drainage, so that the cleaning liquid can be accumulated to a certain height in the purification barrel 3, so that when the exhaust gas enters, it can first enter the cleaning liquid for a purification, and then cooperate with the catalyst carrier tube 801 for catalysis, thereby further improving the thoroughness of the carbon dioxide treatment.

[0032] As attached Figure 3 and Figure 5 As shown, the purification assembly 8 includes a catalyst carrier cylinder 801, which is coaxially installed in the purification barrel 3, and the outside of the catalyst carrier cylinder 801 is slidably matched with each cleaning brush 10;

[0033] A base frame 802, wherein the base frame 802 is welded to the bottom end of the catalyst carrier cylinder 801;

[0034] The motor 803 is installed at the bottom of the purification barrel 3, and the output end of the motor 803 is connected to the base frame 802.

[0035] During specific implementation, the motor 803 is operated to enable the base frame 802 to rotate back and forth synchronously with the catalyst carrier tube 801, thereby generating friction between the catalyst carrier tube 801 and each cleaning brush 10 during the back and forth rotation of the catalyst carrier tube 801, and cleaning the tar attached to the outside, and cleaning with the cleaning liquid sprayed from the bottom of the spray cover 4, thereby ensuring the cleanliness of the surface of the catalyst carrier tube 801, thereby improving the catalytic effect on carbon dioxide.

[0036] As attached Figure 4 As shown, a water inlet pipe and a through pipe are respectively provided at both ends of the drainage pipe 9, the top of the water inlet pipe is higher than the top of the smoke inlet pipe 6, and a plurality of through holes are evenly opened on the through pipe.

[0037] During specific implementation, a through hole is opened through the through pipe to facilitate the cleaning liquid inside the purification barrel 3 to enter the drain pipe 9, thereby making the floating assembly 11 float, and the water inlet pipe is set at a certain height so that the cleaning liquid can accumulate to a certain height in the purification barrel 3, thereby burying the smoke inlet pipe 6, so that the exhaust gas entering the smoke inlet pipe 6 can first pass through the cleaning liquid.

[0038] As attached Figure 4 and Figure 6As shown, the floating assembly 11 includes a float 1101, and the float 1101 is vertically inserted into the through pipe;

[0039] A connecting rope 1102, one end of which is connected to the bottom of the float 1101;

[0040] The float plug 1103 is arranged at the bottom end of the water inlet pipe, and the float plug 1103 is slidably connected to the inner wall of the drain pipe 9 , the float plug 1103 is located on one side of the drain outlet 12 , and the bottom end of the float plug 1103 is connected to the other end of the connecting rope 1102 .

[0041] In specific implementation, the liquid level in the purification barrel 3 rises, the float 1101 floats up, and the floating plug 1103 is pulled by the connecting rope 1102, so that the floating plug 1103 descends and the drain port 12 is opened, thereby automatically draining the water.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A biomass fuel gas tail gas carbon dioxide purification device, comprising a boiler (1), a bracket (2) and a purification barrel (3), wherein the bracket (2) is welded to one side of the boiler (1), and the bracket (2) supports a purification barrel (3) connected to the exhaust port of the boiler (1), characterized in that: A smoke inlet pipe (6) is provided at the bottom of one side of the purification barrel (3), an exhaust pipe (7) is provided at the top of the other side of the purification barrel (3), a purification component (8) is provided inside the purification barrel (3), a plurality of cleaning brushes (10) cooperating with the purification component (8) are installed on the inner wall of the purification barrel (3), a spray cover (4) is installed at the top of the purification barrel (3), a water pump (5) is installed at the top of the spray cover (4), a drain pipe (9) is installed at the bottom of the purification barrel (3), a floating component (11) is installed in the drain pipe (9), and a drain outlet (12) is provided at one side of the bottom of the drain pipe (9).

2. A biomass fuel gas tail gas carbon dioxide purification device according to claim 1, characterized in that: The bottom end of the spray cover (4) is evenly provided with spray holes, and each of the spray holes is connected to the water delivery end of the water pump (5).

3. A biomass fuel gas tail gas carbon dioxide purification device according to claim 2, characterized in that: The inner wall of the purification barrel (3) is evenly provided with a plurality of installation grooves in an annular shape, and a cleaning brush (10) is installed in each of the installation grooves.

4. A biomass fuel gas tail gas carbon dioxide purification device according to claim 3, characterized in that: The purification component (8) comprises a catalyst carrier cylinder (801), wherein the catalyst carrier cylinder (801) is coaxially mounted in the purification barrel (3), and the exterior of the catalyst carrier cylinder (801) is slidably matched with each cleaning brush (10); A base frame (802), wherein the base frame (802) is welded to the bottom end of the catalyst carrier cylinder (801); A motor (803) is installed at the bottom end of the purification barrel (3), and an output end of the motor (803) is connected to the bottom frame (802).

5. A biomass fuel gas tail gas carbon dioxide purification device according to claim 4, characterized in that: A water inlet pipe and a through pipe are respectively provided at both ends of the drainage pipe (9); the top of the water inlet pipe is higher than the top of the smoke inlet pipe (6), and a plurality of through holes are evenly provided on the through pipe.

6. A biomass fuel gas tail gas carbon dioxide purification device according to claim 5, characterized in that: The floating assembly (11) comprises a float (1101), and the float (1101) is vertically inserted into the through pipe; A connecting rope (1102), one end of which is connected to the bottom end of the float (1101); A floating plug (1103) is arranged at the bottom end of the water inlet pipe, and the floating plug (1103) is slidably connected to the inner wall of the drainage pipe (9), the floating plug (1103) is located on one side of the drainage outlet (12), and the bottom end of the floating plug (1103) is connected to the other end of the connecting rope (1102).

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