Biomass boiler flue gas purification device

Abstract

The utility model discloses a biomass boiler flue gas purification device, which relates to the technical field of flue gas treatment, and comprises a purification box body, the outer wall of the lower part of the purification box body is connected with a gas inlet pipe in a penetrating manner, the outer wall of the purification box body is connected with a liquid conveying pipe in a penetrating manner, and the top surface of the purification box body is provided with a top cover; according to the device, an external water pump is used for pumping mixed liquid of an amino reducing agent and a desulfurizing agent into the liquid conveying pipe, the mixed liquid is sprayed out through the atomization spraying pipe to conduct desulfurization and denitrification treatment on smoke exhausted in through the gas inlet pipe, the sprayed liquid is used for carrying away smoke dust, and therefore the smoke dust can be effectively removed; the treated flue gas is discharged through the primary filter module and the flow guide port under the action of external suction through the exhaust fan and the flow guide partition plate, particles and water vapor in the flue gas are further intercepted, the flue gas purification effect of the flue gas purification device is effectively improved, efficient and synchronous removal of various pollutants is achieved, the technological process is simplified, and the production cost is reduced. The occupied area and the investment cost of equipment are reduced.

Description

Technical Field

[0001] This utility model relates to the field of flue gas treatment technology, and in particular to a biomass boiler flue gas purification device. Background Technology

[0002] Biomass energy, as a renewable and clean energy source, has a wide range of raw material sources, including organic materials such as agricultural and forestry waste and animal manure. It can effectively alleviate energy pressure. Although biomass boilers are considered one of the clean energy utilization methods, they still produce various pollutants during combustion. If not treated, they will cause serious pollution to the atmospheric environment, affect the ecological balance and human health. Therefore, it is necessary to purify the flue gas produced by combustion.

[0003] However, in the current technology, there are many types of pollutants in the flue gas of biomass boilers, and a large amount of soot is mixed in. Traditional flue gas purification is difficult to achieve efficient and synergistic removal of multiple pollutants, resulting in poor purification effect and difficulty in meeting ultra-low emission requirements. Utility Model Content

[0004] The purpose of this invention is to address the problem that biomass boiler flue gas contains a wide variety of pollutants and a large amount of dust, making it difficult for traditional flue gas purification methods to achieve efficient and synergistic removal of multiple pollutants, resulting in poor purification effects and difficulty in meeting ultra-low emission requirements. Therefore, this invention proposes a biomass boiler flue gas purification device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a biomass boiler flue gas purification device, comprising a purification chamber, an air inlet pipe penetrating the lower outer wall of the purification chamber, a liquid delivery pipe penetrating the outer wall of the purification chamber, a top cover installed on the top surface of the purification chamber, an exhaust pipe fixedly connected to the center of the top surface of the top cover, an exhaust fan fixedly installed at the top of the exhaust pipe, a sealing partition fixedly connected to the inner wall of the purification chamber, a flow guide partition provided below the sealing partition, the flow guide partition fixedly connected to the inner wall of the purification chamber, an atomizing spray pipe provided on one side of the flow guide partition, the atomizing spray pipe being fixedly connected to one end of the liquid delivery pipe, a primary filter module provided on the other side of the flow guide partition, the primary filter module being fixedly connected to the bottom surface of the sealing partition, a flow guide opening penetrating the outer wall of the sealing partition, the interior of the flow guide opening being connected to the interior of the primary filter module.

[0006] Preferably, a baffle is provided on one side of the flow guide, and the baffle is fixedly connected to the bottom surface of the top cover.

[0007] Preferably, an activated carbon adsorption module is installed on one side of the baffle, and the interior of the activated carbon adsorption module is connected to the interior of the exhaust pipe.

[0008] Preferably, a liquid receiving tank is provided below the flow guide baffle, and the liquid receiving tank is movably connected to the inner wall of the purification chamber.

[0009] Preferably, a limiting groove is formed on the lower outer wall of the purification box, and a sealing plate is movably connected to the inner wall of the limiting groove. One end of the liquid receiving box is fixedly connected to the outer wall of the sealing plate.

[0010] Preferably, a handle is fixedly connected to the outer wall of the sealing plate, a drain pipe is provided on one side of the handle, a connecting hole is opened through the inner wall of the liquid receiving tank, one end of the drain pipe passes through the outer wall of the sealing plate and is fixedly connected to the connecting hole, a guide groove is provided inside the connecting hole, and the guide groove is opened on the bottom surface of the liquid receiving tank.

[0011] Preferably, a fixing rod is fixedly connected to the outer wall of the purification box, and a limit plate is movably sleeved on the outer wall of the fixing rod.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, a mixed liquid of amino reducing agent and desulfurizing agent is pumped into the delivery pipe by an external water pump. The liquid is then sprayed through an atomizing spray pipe to desulfurize and denitrify the flue gas discharged from the inlet pipe. The sprayed liquid also carries away the dust. The treated flue gas is then discharged through the primary filter module and the guide port by an exhaust fan and a baffle plate. This further intercepts particulate matter and water vapor in the flue gas, effectively improving the flue gas purification effect of this utility model. It achieves efficient and simultaneous removal of multiple pollutants, simplifies the process, and reduces the equipment footprint and investment cost.

[0014] 2. In this utility model, by setting up an activated carbon adsorption module and a baffle, the flue gas discharged from the guide port is filtered again inside the activated carbon adsorption module, so that the harmful gas molecules in the flue gas are adsorbed by the surface of the activated carbon, thereby achieving further purification of the flue gas. Attached Figure Description

[0015] Figure 1 This utility model provides a three-dimensional structural schematic diagram of a biomass boiler flue gas purification device;

[0016] Figure 2 This utility model provides a schematic diagram of the structure of an atomizing spray pipe for a biomass boiler flue gas purification device;

[0017] Figure 3 This utility model provides a schematic diagram of the internal structure of a biomass boiler flue gas purification device;

[0018] Figure 4 This utility model proposes a biomass boiler flue gas purification device. Figure 3Enlarged view of the structure at point A in the middle.

[0019] Legend: 1. Purification chamber; 11. Limiting groove; 12. Limiting plate; 13. Fixing rod; 14. Sealing partition; 15. Flow guide port; 2. Infusion pipe; 21. Atomizing spray pipe; 3. Top cover; 31. Baffle; 32. Exhaust pipe; 33. Activated carbon adsorption module; 4. Air inlet pipe; 5. Sealing plate; 51. Handle; 52. Drain pipe; 53. Liquid receiving tank; 54. Connecting hole; 55. Flow guide groove; 6. Exhaust fan; 7. Flow guide partition; 8. Primary filter module. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Example 1: As Figure 1 - Figure 4 As shown, this utility model provides a biomass boiler flue gas purification device, including a purification chamber 1. An air inlet pipe 4 is connected through the lower outer wall of the purification chamber 1, and a liquid delivery pipe 2 is connected through the outer wall of the purification chamber 1. A top cover 3 is installed on the top surface of the purification chamber 1, and an exhaust pipe 32 is fixedly connected to the center of the top surface of the top cover 3. An exhaust fan 6 is fixedly installed at the top of the exhaust pipe 32. A sealing partition 14 is fixedly connected to the inner wall of the purification chamber 1. A flow guide partition 7 is provided below the sealing partition 14 and is fixedly connected to the inner wall of the purification chamber 1. An atomizing spray pipe 21 is provided on one side of the flow guide partition 7 and is fixedly connected to one end of the liquid delivery pipe 2. A primary filter module 8 is provided on the other side of the flow guide partition 7 and is fixedly connected to the bottom surface of the sealing partition 14. A flow guide port 15 is opened through the outer wall of the sealing partition 14 and is connected to the interior of the primary filter module 8.

[0023] The specific setup and function of this embodiment are described below. The flue gas generated by boiler combustion enters the purification chamber 1 through the air inlet pipe 4. An external water pump pumps a mixture of ammonia reducing agent and desulfurizing agent into the liquid delivery pipe 2. The mixture is sprayed through the atomizing spray pipe 21 to desulfurize and denitrify the flue gas discharged from the air inlet pipe 4. The sprayed liquid also carries away the dust. The treated flue gas is discharged through the primary filter module 8 and the guide port 15 under external suction by the exhaust fan 6 and the guide baffle 7. This further intercepts particulate matter and water vapor in the flue gas, effectively improving the flue gas purification effect of this utility model, achieving efficient and simultaneous removal of multiple pollutants, simplifying the process flow, and reducing the equipment footprint and investment cost.

[0024] Example 2: Figure 1 - Figure 4 As shown, a baffle 31 is provided on one side of the flow guide 15. The baffle 31 is fixedly connected to the bottom surface of the top cover 3. An activated carbon adsorption module 33 is installed on one side of the baffle 31. The interior of the activated carbon adsorption module 33 is connected to the interior of the exhaust pipe 32. A liquid receiving tank 53 is provided below the flow guide baffle 7. The liquid receiving tank 53 is movably connected to the inner wall of the purification chamber 1. A limiting groove 11 is opened on the lower outer wall of the purification chamber 1. A sealing plate 5 is movably connected to the inner wall of the limiting groove 11. One end of the liquid receiving tank 53 is connected to... The outer wall of the sealing plate 5 is fixedly connected, and a handle 51 is fixedly connected to the outer wall of the sealing plate 5. A drain pipe 52 is provided on one side of the handle 51. A connecting hole 54 is opened through the inner wall of the liquid receiving tank 53. One end of the drain pipe 52 passes through the outer wall of the sealing plate 5 and is fixedly connected to the connecting hole 54. A guide groove 55 is provided inside the connecting hole 54. The guide groove 55 is opened on the inner bottom surface of the liquid receiving tank 53. A fixing rod 13 is fixedly connected to the outer wall of the purification box 1. A limit plate 12 is movably sleeved on the outer wall of the fixing rod 13.

[0025] The overall effect of this embodiment is that, through the setting of the activated carbon adsorption module 33 and the baffle 31, the flue gas discharged from the guide port 15 is filtered again inside the activated carbon adsorption module 33, so that the harmful gas molecules in the flue gas are adsorbed by the surface of the activated carbon, thereby achieving further purification of the flue gas. Through the cooperation of the liquid receiving tank 53 and the drain pipe 52, the mixed liquid generated by the spraying inside the purification box 1 is collected and collected. The external sewage pump is used to extract the liquid through the drain pipe 52 for subsequent waste liquid treatment. The rotation setting of the limiting plate 12 makes it convenient for the user to control the fixed state of the sealing plate 5 in the limiting groove 11, so as to facilitate the subsequent removal and cleaning of the sealing plate 5 and the liquid receiving tank 53 by the handle 51.

[0026] The device is used as follows: During operation, the inlet pipe 4 connects to the exhaust pipe of the biomass boiler. The flue gas generated by the boiler combustion enters the purification chamber 1 through the inlet pipe 4. An external water pump pumps a mixture of ammonia reducing agent and desulfurizing agent into the delivery pipe 2. The flue gas discharged from the inlet pipe 4 is desulfurized and denitrified through the atomizing spray pipe 21, and the sprayed liquid carries away the dust. The treated flue gas is then discharged through the primary filter module 8 and the guide port 15 under external suction via the exhaust fan 6 and the guide baffle 7, further intercepting particulate matter and water vapor in the flue gas. The activated carbon adsorption module 33 and the baffle 31 allow the flue gas discharged from the guide port 15 to be filtered again inside the activated carbon adsorption module 33, causing harmful gas molecules in the flue gas to be adsorbed by the activated carbon surface, thus achieving further purification of the flue gas.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A biomass boiler flue gas purification device, comprising a purification box (1), characterized in that: The lower outer wall of the purification box (1) is connected with an air inlet pipe (4), the outer wall of the purification box (1) is connected with a liquid inlet pipe (2), the top surface of the purification box (1) is provided with a top cover (3), the top surface of the top cover (3) is fixedly connected with an exhaust pipe (32), the top end of the exhaust pipe (32) is fixedly provided with an exhaust fan (6), the inner wall of the purification box (1) is fixedly connected with a sealing partition plate (14), the lower portion of the sealing partition plate (14) is provided with a flow guide partition plate (7), the flow guide partition plate (7) is fixedly connected to the inner wall of the purification box (1), one side of the flow guide partition plate (7) is provided with an atomizing spray pipe (21), the atomizing spray pipe (21) is fixedly communicated with one end of the liquid inlet pipe (2), the other side of the flow guide partition plate (7) is provided with a primary filter module (8), the primary filter module (8) is fixedly connected to the bottom surface of the sealing partition plate (14), the outer wall of the sealing partition plate (14) is provided with a flow guide opening (15), the flow guide opening (15) is in communication with the inside of the primary filter module (8).

2. The biomass boiler flue gas cleaning device according to claim 1, characterized in that: One side of the flow guide opening (15) is provided with a baffle (31), and the baffle (31) is fixedly connected to the bottom surface of the top cover (3).

3. The biomass boiler flue gas cleaning device according to claim 2, characterized in that: One side of the baffle (31) is provided with an activated carbon adsorption module (33), and the inside of the activated carbon adsorption module (33) is in communication with the inside of the exhaust pipe (32).

4. The biomass boiler flue gas cleaning device according to claim 1, characterized in that: The lower portion of the flow guide partition plate (7) is provided with a liquid receiving tank (53), and the liquid receiving tank (53) is movably connected to the inner wall of the purification box (1).

5. A biomass boiler flue gas cleaning apparatus according to claim 4, characterised in that: The lower outer wall of the purification box (1) is provided with a limiting groove (11), the inner wall of the limiting groove (11) is movably connected with a sealing plate (5), and one end of the liquid receiving tank (53) is fixedly connected with the outer wall of the sealing plate (5).

6. A biomass boiler flue gas cleaning apparatus according to claim 5, characterised in that: The outer wall of the sealing plate (5) is fixedly connected with a handle (51), one side of the handle (51) is provided with a drainage pipe (52), the inner wall of the liquid receiving tank (53) is provided with a communication hole (54), one end of the drainage pipe (52) is fixedly communicated with the communication hole (54) through the outer wall of the sealing plate (5), the inner side of the communication hole (54) is provided with a flow guide groove (55), and the flow guide groove (55) is provided on the inner bottom surface of the liquid receiving tank (53).

7. The biomass boiler flue gas cleaning device according to claim 1, characterized in that: The outer wall of the purification box (1) is fixedly connected with a fixing rod (13), and the outer wall of the fixing rod (13) movably sleeves a limiting plate (12).

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