High-temperature flue gas filter for biomass power generation boiler

Abstract

The utility model relates to the technical field of electric boiler filtration, in particular to a biomass power generation boiler high-temperature flue gas filter which comprises a base, the top of the base is fixedly connected with a filter box, the interior of the filter box is fixedly connected with a filter plate, the top of the filter box is provided with a transmission groove, and the top of the inner wall of the filter box is rotationally connected with a connecting rod. The top of the connecting rod extends into the transmission groove and is fixedly connected with air outlet fan blades, the bottom of the connecting rod is fixedly connected with a cleaning brush, the bottom of the cleaning brush makes contact with the top of the filter plate, and through grooves are formed in the top of the inner wall of the filter box at equal intervals. The flue gas treatment system has the beneficial effects that accumulated particles and dust can be removed, the filtering efficiency is always kept at a higher level, pollutants discharged into the atmosphere can be continuously reduced, the clean filtering plate can ensure the stable operation of the flue gas treatment system, the efficiency reduction or fault caused by the blockage of a filtering medium is avoided, and the service life of the flue gas treatment system is prolonged. Compared with a traditional device, the operation quality and the use efficiency are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric boiler filtration, in particular to a high-temperature flue gas filter for a biomass power generation boiler. Background Art

[0002] The main functions of biomass power generation boiler high temperature flue gas filters include capturing and removing suspended particulate matter such as dust and ash in the flue gas, improving heat exchange efficiency and the overall effectiveness of the system, and effectively reducing the emission of harmful gases such as nitrogen oxides, sulfur dioxide and carbon monoxide in the flue gas, helping power plants meet environmental protection requirements and regulations and protecting the health of residents in the surrounding communities;

[0003] After searching, a Chinese patent discloses a high-temperature flue gas filter for a biomass power generation boiler (authorization announcement number CN214389463U), which includes a mounting plate, a filter box is fixedly mounted on the upper surface of the mounting plate, a partition plate is fixedly mounted on the inner top wall and the inner bottom wall of the filter box, the interior of the filter box is divided into a heat exchange chamber and a spray chamber by the partition plate, and an air pipe is arranged on the left inner wall of the spray chamber, one end of the air pipe extends to the interior of the heat exchange chamber, and the other end of the air pipe extends to the inner bottom of the spray chamber. Although the above patent technology can be provided by providing a spray chamber, a spray pipe, a spray head and a second water pump, when the flue gas passes through the heat exchange chamber and reaches the spray chamber, the second water pump and the spray head can be used to effectively spray and remove dust from the flue gas, and at the same time, by providing a purification box, a coarse filter screen, a fine filter screen, a PE cotton cloth layer and an activated carbon particle layer, the flue gas after dust removal can be effectively filtered, thereby improving the purity of the discharged flue gas and avoiding pollution to the environment;

[0004] However, in the actual application of this patented technology, the filter plate of the above-mentioned biomass power generation boiler high-temperature flue gas filter cannot be cleaned when in use. On the one hand, when a large amount of particulate matter accumulates on the surface of the filter medium, the pressure loss of the flue gas through the filter medium will increase, which means that more energy is required to maintain the flow of the flue gas, thereby increasing the operating cost. On the other hand, long-term accumulation of particulate matter will damage the physical structure of the filter plate and may cause premature damage to the filter medium, thereby increasing the frequency and cost of replacing the filter medium. Utility Model Content

[0005] In view of the above problems existing in the prior art, the main purpose of the utility model is to provide a high-temperature flue gas filter for a biomass power generation boiler.

[0006] The technical solution of the utility model is as follows: a high-temperature flue gas filter for a biomass power generation boiler comprises a base, a filter box is fixedly connected to the top of the base, a filter plate is fixedly connected to the inside of the filter box, a transmission groove is opened on the top of the filter box, a connecting rod is rotatably connected to the top of the inner wall of the filter box, the top of the connecting rod extends to the inside of the transmission groove and is fixedly connected to a fan blade, a cleaning brush is fixedly connected to the bottom of the connecting rod, the bottom of the cleaning brush is in contact with the top of the filter plate, through grooves are equidistantly opened on the top of the inner wall of the filter box, and the tops of the through grooves are communicated with the transmission groove.

[0007] Through the above technical solution, a filter box is firmly connected to the top of the base, which is convenient for integration and installation. The filter plate is firmly connected inside the filter box, and a transmission groove is designed on the top of the filter box. The particulate matter in the flue gas is effectively filtered through the filter plate to ensure that the discharged gas is cleaner. At the top of the inner wall of the filter box, a connecting rod is rotatably connected, the top of which extends into the transmission groove and is fixedly connected with an outlet fan blade. The bottom of the connecting rod is fixedly connected with a cleaning brush, and the bottom of these cleaning brushes is in contact with the top of the filter plate. When the outlet fan blade is driven by the motor to rotate, the cleaning brush is driven to automatically clean the accumulated dust on the filter plate, thereby reducing the workload of manual cleaning.

[0008] As a preferred embodiment, a guardrail is fixedly connected to the top of the filter box and located outside the fan blades, and a motor is fixedly connected to the top of the guardrail. The output shaft of the motor extends to the inside of the transmission slot and is fixedly connected to the top of the fan blades.

[0009] Through the above technical solution, a guardrail is fixedly connected to the top of the filter box to improve operational safety, and a motor is fixedly connected to the top of the guardrail, whose output shaft extends into the transmission groove and is fixedly connected to the top of the fan blades, which can effectively provide power for the fan blades, thereby driving the connecting rod and the cleaning brush at its lower end to work.

[0010] As a preferred embodiment, a cooling box is fixedly connected to the top of the base and located on one side of the filter box, a smoke inlet pipe is fixedly connected to one side of the filter box, one end of the smoke inlet pipe extends to the interior of the filter box, and a connecting pipe is fixedly connected to the input end of the cooling box, and one end of the connecting pipe away from the cooling box extends to the interior of the filter box.

[0011] Through the above technical solution, the cooling box is located on one side of the filter box at the top of the base, and one end of the smoke inlet pipe extends into the inside of the filter box. The temperature control of the flue gas is optimized through the connecting pipe, which is beneficial to improving the filtration efficiency.

[0012] As a preferred embodiment, a water pump is fixedly connected to one side of the top of the base, an input end of the water pump is fixedly connected to a water inlet pipe, an end of the water inlet pipe away from the water pump is fixedly connected to the output end of the cooling box, an output end of the water pump is fixedly connected to a water outlet pipe of a three-way structure, two ends of the water outlet pipe away from the water pump extend to both sides of the inside of the filter box and are fixedly connected to a connecting pipe, and boosting nozzles are fixedly connected to the bottom of the connecting pipe at equal distances.

[0013] Through the above technical solution, the water pump is installed on the top side of the base, and its output end is fixedly connected to the water outlet pipe, and extends to both sides of the filter box through the three-way structure. The bottom of the fixedly connected connecting pipe is equipped with a booster nozzle to cool and moisten the filter plate, reduce the temperature of the filter plate, and increase the adhesion of dust to the filter plate, thereby further improving the filtering effect.

[0014] As a preferred embodiment, a control panel is fixedly connected to the outer side of the filter box, and the motor, cooling box and water pump are all electrically connected to the control panel.

[0015] Through the above technical solution, the motor, cooling box and water pump are electrically connected through the control panel fixed on the outside to realize automatic control, simplify the operation process, and improve the filtering efficiency and safety.

[0016] As a preferred embodiment, four supporting legs are fixedly connected to the bottom of the base.

[0017] Through the above technical solution, four supporting legs are fixedly connected to the bottom of the base, which increases the stability of the entire structure and ensures stable operation even under the long-term action of high-temperature flue gas.

[0018] Compared with the prior art, the advantages and positive effects of the utility model are:

[0019] In the utility model, when the above-mentioned biomass power generation boiler high-temperature flue gas filter is in use, when the fan blades drive the filtered flue gas to be discharged, the top of the filter plate is cleaned by an online dry cleaning brush. On the one hand, accumulated particles and dust can be removed to ensure that the filtration efficiency is always maintained at a high level, which helps to continuously reduce pollutants discharged into the atmosphere. On the other hand, the clean filter plate can ensure the stable operation of the flue gas treatment system, avoid efficiency reduction or failure caused by blockage of the filter medium, and greatly improve the operation quality and use efficiency compared with traditional devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a first-perspective stereogram of the present invention;

[0021] Figure 2 It is a second perspective stereogram of the utility model;

[0022] Figure 3 It is a cross-sectional schematic diagram of the filter box of the utility model;

[0023] Figure 4 This is a schematic diagram of the water pump structure of the utility model;

[0024] Figure 5 This is a schematic diagram of the filter plate structure of the utility model;

[0025] Figure 6 for Figure 3 Enlarged view of point A in the middle.

[0026] Legend: 1. Base; 2. Filter box; 3. Filter plate; 4. Transmission slot; 5. Connecting rod; 6. Fan blades; 7. Cleaning brush; 8. Through slot; 9. Guardrail; 10. Motor; 11. Cooling box; 12. Smoke inlet pipe; 13. Connecting pipe; 14. Water pump; 15. Water inlet pipe; 16. Water outlet pipe; 17. Connecting pipe; 18. Booster nozzle; 19. Control panel; 20. Support leg. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings 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.

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Example

[0029] like Figure 1-Figure 6As shown, the utility model provides a technical solution: a high-temperature flue gas filter for a biomass power generation boiler, comprising a base 1, a filter box 2 is fixedly connected to the top of the base 1, a filter plate 3 is fixedly connected to the inside of the filter box 2, a transmission groove 4 is opened on the top of the filter box 2, a connecting rod 5 is rotatably connected to the top of the inner wall of the filter box 2, the top of the connecting rod 5 extends to the inside of the transmission groove 4 and is fixedly connected to a fan blade 6, a cleaning brush 7 is fixedly connected to the bottom of the connecting rod 5, the bottom of the cleaning brush 7 is in contact with the top of the filter plate 3, through grooves 8 are equidistantly opened on the top of the inner wall of the filter box 2, and the tops of the through grooves 8 are communicated with the transmission groove 4. A filter box 2 is firmly connected to the top of the filter box 2, which is convenient for integration and installation. The filter plate 3 is firmly connected to the inside of the filter box 2, and a transmission groove 4 is designed on the top thereof. The particulate matter in the flue gas is effectively filtered through the filter plate 3 to ensure that the discharged gas is cleaner. At the top of the inner wall of the filter box 2, a connecting rod 5 is rotatably connected, the top of which extends into the transmission groove 4 and is fixedly connected with an outlet fan blade 6. The bottom of the connecting rod 5 is fixedly connected with a cleaning brush 7, and the bottom of these cleaning brushes 7 are in contact with the top of the filter plate 3. When the outlet fan blade 6 is driven to rotate by the motor 10, the cleaning brush 7 is driven to automatically clean the accumulated dust on the filter plate 3, thereby reducing the workload of manual cleaning.

[0030] Among them, a guardrail 9 is fixedly connected to the top of the filter box 2 and located outside the fan blades 6, and a motor 10 is fixedly connected to the top of the guardrail 9. The output shaft of the motor 10 extends to the inside of the transmission slot 4 and is fixedly connected to the top of the fan blades 6. The top of the filter box 2 of the above-mentioned device is fixedly connected to the guardrail 9 to improve operational safety, and the top of the guardrail 9 is fixedly connected to the motor 10, and its output shaft extends to the inside of the transmission slot 4 and is fixedly connected to the top of the fan blades 6, which can effectively provide power for the fan blades 6, thereby driving the connecting rod 5 and the cleaning brush 7 at its lower end to work.

[0031] Among them, a cooling box 11 is fixedly connected to the top of the base 1 and located on one side of the filter box 2, and a smoke inlet pipe 12 is fixedly connected to one side of the filter box 2. One end of the smoke inlet pipe 12 extends to the inside of the filter box 2. The input end of the cooling box 11 is fixedly connected to a connecting pipe 13, and the end of the connecting pipe 13 away from the cooling box 11 extends to the inside of the filter box 2. The cooling box 11 of the above-mentioned device is located on one side of the filter box 2 at the top of the base 1, and one end of the smoke inlet pipe 12 extends to the inside of the filter box 2. The temperature control of the flue gas is optimized through the connecting pipe 13, which is beneficial to improving the filtration efficiency.

[0032] Among them, a water pump 14 is fixedly connected to one side of the top of the base 1, and an input end of the water pump 14 is fixedly connected to a water inlet pipe 15, and one end of the water inlet pipe 15 away from the water pump 14 is fixedly connected to the output end of the cooling box 11, and the output end of the water pump 14 is fixedly connected to a water outlet pipe 16 of a three-way structure, and the water outlet pipe 16 extends to both sides of the inside of the filter box 2 away from both ends of the water pump 14 and is fixedly connected to a connecting pipe 17, and the bottom of the connecting pipe 17 is evenly fixedly connected with a booster nozzle 18. The water pump 14 of the above-mentioned device is installed on one side of the top of the base 1, and its output end is fixedly connected to the water outlet pipe 16, and extends to both sides of the inside of the filter box 2 through a three-way structure, and the bottom of the fixedly connected connecting pipe 17 is equipped with a booster nozzle 18, which cools and moistens the filter plate 3, reduces the temperature of the filter plate 3, and at the same time increases the adhesion of dust to the filter plate 3, further improving the filtering effect.

[0033] Among them, a control panel 19 is fixedly connected to the outside of the filter box 2, and the motor 10, cooling box 11 and water pump 14 are all electrically connected to the control panel 19. The above-mentioned device electrically connects the motor 10, cooling box 11 and water pump 14 through the control panel 19 fixedly connected to the outside, realizes automatic control, simplifies the operation process, and improves filtering efficiency and safety.

[0034] Among them, four supporting legs 20 are fixedly connected to the bottom of the base 1. The bottom of the base 1 of the above-mentioned device is fixedly connected to four supporting legs 20, which increases the stability of the entire structure and ensures that it can maintain stable operation under the long-term action of high-temperature flue gas.

[0035] Working principle:

[0036] like Figure 1-Figure 6As shown, when the high-temperature flue gas filter of the biomass power generation boiler is in use, the high-temperature flue gas enters the filter box 2 through the smoke inlet pipe 12, and the particles and dust contained in the flue gas are firstly filtered through the filter plate 3, and the larger particles are captured, reducing the burden of subsequent treatment. The connecting pipe 13 introduces the cooled gas in the cooling box 11 into the filter box 2, which helps to reduce the temperature of the incoming flue gas, making the subsequent treatment process more efficient and safe. After the flue gas is cooled, when it passes through the filter plate 3, the cleaning brush 7 driven by the connecting rod 5 cleans the particles and dust adhering to the filter plate 3 under the drive of the motor 10 to maintain the filtration efficiency. The fan blades 6 help to promote the flow of flue gas in the filter box 2, increasing the contact between the flue gas and the filter material The contact probability is increased and the filtering efficiency is improved. The water driven by the water pump 14 passes through the water outlet pipe 16 and the connecting pipe 17, and is sprayed into the filter box 2 through the booster nozzle 18, which helps to humidify and cool the flue gas, making some particulate matter easier to be captured by the filter material. It also helps to lower the flue gas temperature and reduce thermal damage to the filter box 2 and other equipment. The control panel 19 is used to manage the operation of the overall facility, including the start and stop of the motor 10, the cooling box 11 and the water pump 14, and adjust the operating conditions such as the amount and frequency of water injection, the speed of the motor 10, etc., so that the equipment operates in the best state and ensures that the filtering efficiency is always maintained at a high level. This helps to continuously reduce pollutants discharged into the atmosphere and greatly improves the operation quality and use efficiency compared with traditional devices.

[0037] Finally, it should be noted that the above-described embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A high-temperature flue gas filter for a biomass power generation boiler, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a filter box (2), the interior of the filter box (2) is fixedly connected to a filter plate (3), the top of the filter box (2) is provided with a transmission groove (4), the top of the inner wall of the filter box (2) is rotatably connected to a connecting rod (5), the top of the connecting rod (5) extends to the interior of the transmission groove (4) and is fixedly connected to a fan blade (6), the bottom of the connecting rod (5) is fixedly connected to a cleaning brush (7), the bottom of the cleaning brush (7) is in contact with the top of the filter plate (3), the top of the inner wall of the filter box (2) is provided with through grooves (8) at equal intervals, the tops of the through grooves (8) are in communication with the transmission groove (4).

2. A biomass power generation boiler high temperature flue gas filter according to claim 1, characterized in that: A guardrail (9) is fixedly connected to the top of the filter box (2) and located outside the fan blades (6); a motor (10) is fixedly connected to the top of the guardrail (9); an output shaft of the motor (10) extends to the inside of the transmission slot (4) and is fixedly connected to the top of the fan blades (6).

3. A biomass power generation boiler high temperature flue gas filter according to claim 1, characterized in that: A cooling box (11) is fixedly connected to the top of the base (1) and located on one side of the filter box (2); a smoke inlet pipe (12) is fixedly connected to one side of the filter box (2); one end of the smoke inlet pipe (12) extends into the interior of the filter box (2); an input end of the cooling box (11) is fixedly connected to a connecting pipe (13); one end of the connecting pipe (13) away from the cooling box (11) extends into the interior of the filter box (2).

4. A biomass power generation boiler high temperature flue gas filter according to claim 3, characterized in that: A water pump (14) is fixedly connected to one side of the top of the base (1), an input end of the water pump (14) is fixedly connected to a water inlet pipe (15), and an end of the water inlet pipe (15) away from the water pump (14) is fixedly connected to an output end of the cooling box (11).

5. A biomass power generation boiler high temperature flue gas filter according to claim 4, characterized in that: The output end of the water pump (14) is fixedly connected to a water outlet pipe (16) of a three-way structure, the water outlet pipe (16) extends away from the two ends of the water pump (14) to the two sides of the inside of the filter box (2) and is fixedly connected to a connecting pipe (17), and the bottom of the connecting pipe (17) is fixedly connected to a booster nozzle (18) at equal distances.

6. A biomass power generation boiler high temperature flue gas filter according to claim 2, characterized in that: A control panel (19) is fixedly connected to the outside of the filter box (2), and the motor (10), the cooling box (11) and the water pump (14) are all electrically connected to the control panel (19).

7. The high-temperature flue gas filter for biomass power generation boiler according to claim 1, characterized in that: Four supporting legs (20) are fixedly connected to the bottom of the base (1).

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