Flue gas dust remover for biomass boiler

Abstract

The utility model provides a flue gas dust remover for a biomass boiler, which belongs to the technical field of dust removers and comprises a shell, an access door, an inner part mounted on one side of the shell, an ash bucket and a bottom end fixed at the shell, the cleaning structure comprises a moving rod sliding in the machine shell, a rubber shell arranged on the outer side of the moving rod in a sleeving mode and connected with the machine shell, a connecting frame fixed to one side of the moving rod and a transmission assembly arranged on one side of the moving rod. According to the utility model, the stepping motor drives the crank to rotate through the differential mechanism, and meanwhile, the crank and the connecting rod drive the moving rod to do reciprocating motion, so that the connecting frame drives the filter bag to shake and accelerates the falling of dust on the surface of the filter bag, thereby realizing the efficient cleaning function of the device, improving the cleaning effect on the filter bag, and more effectively cleaning the accumulated dust on the filter bag; meanwhile, the service life of the filter bag is prolonged, and the functionality of the device is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of dust collectors, and in particular to a biomass boiler flue gas dust collector. Background Art

[0002] Biomass boiler is a boiler that uses biomass as fuel. It is renewable and low-pollution, and can effectively reduce environmental pollution. Since the flue gas of biomass contains a large amount of ash after combustion, a biomass boiler flue gas dust collector is set up to filter the flue gas after combustion, remove the ash and dust, and reduce the pollution caused by the device to the environment.

[0003] After searching, the Chinese patent application No. 202321195271.8 discloses a bag-type dust collector, which belongs to the technical field of dust collectors, including a bag-type dust collector body and a cleaning structure arranged on the surface of the bag-type dust collector body, and a pushing structure for driving the cleaning structure; a pulse valve body is installed on the surface of the bag-type dust collector body; the utility model, by setting a cleaning structure, when the operator uses the device and needs to disassemble and replace the filter bag body inside the bag-type dust collector body, first adjust the fixing structure, and when the fixing structure is released from the fixed state with the bag-type dust collector body, the operator pulls the installation sleeve, and with the cooperation of the two reinforcement plates, the ventilation sleeve can simultaneously drive all the installation sleeves to rotate to a state perpendicular to the ground, and after removing the obstruction of the filter bag body, it is convenient for the operator to disassemble and replace the filter bag body on the surface of the bag-type dust collector body, and the operation is simple and fast, which improves the convenience of the operator;

[0004] The above patent still has the following deficiencies: (1) The dust cleaning is not thorough. Since the ash produced after the biomass is fully burned is relatively fine, it is easy to adhere to the surface of the bag and is not easy to be blown off by the pulse valve. As a result, after the device is used for a long time, too much ash accumulates in the bag, and the air permeability of the bag will be significantly reduced, making it impossible to effectively filter out the dust, thereby reducing the filtration efficiency of the dust collector;

[0005] (2) The defect that dust easily flows into the pipeline during the cleaning process. When the nozzle pipe cleans the filter bag, the dust falling from the surface of the filter bag is easily blown into the inside of the air inlet, affecting the normal use of the boiler.

[0006] Therefore, a biomass boiler flue gas dust collector is urgently needed to solve the above problems. Utility Model Content

[0007] The purpose of the utility model is to address the problem that the current dust cleaning is not thorough. Since the ash produced after the biomass is fully burned is relatively fine, it is easy to adhere to the surface of the bag and is not easily blown off by the pulse valve. As a result, after the device is used for a long time, too much ash accumulates in the bag, and the air permeability of the bag is significantly reduced, making it impossible to effectively filter out the dust, thereby reducing the filtration efficiency of the dust collector.

[0008] In order to achieve the above-mentioned invention object, the utility model provides the following technical solutions:

[0009] A biomass boiler flue gas dust removal machine comprises a casing, and further comprises:

[0010] An access door mounted inside one side of the housing;

[0011] An ash hopper is fixed at the bottom end of the casing, and a paddle is installed at the bottom end of the ash hopper, a servo motor connected to the paddle is installed on one side of the ash hopper, and an air inlet is fixed on one side of the ash hopper;

[0012] A sealing structure, arranged on one side of the air inlet, for shielding the air inlet;

[0013] The filter bags are installed inside the casing, and a support net is installed inside the filter bags;

[0014] A blowing pipe is inserted at the top of the casing, one side of the blowing pipe is connected to a solenoid valve, and the bottom end of the solenoid valve is connected to an air bag;

[0015] A cover plate is detachably mounted on the top of the casing, an air outlet is mounted on the top of one side of the casing, and a support frame is mounted on the bottom of the ash hopper;

[0016] The cleaning structure is arranged inside the casing, wherein the cleaning structure includes a moving rod sliding inside the casing, a rubber shell sleeved on the outside of the moving rod and connected to the casing, a connecting frame fixed on one side of the moving rod, and a transmission assembly arranged on one side of the moving rod.

[0017] As a preferred technical solution of the present application, the transmission assembly includes a connecting rod rotatably connected to one side of the moving rod, a crank installed on one side of the casing and rotatably connected to the connecting rod, a differential connected to the rotating end of the crank, and a stepper motor installed on one side of the differential.

[0018] Through the above technical solution, the crank is driven to rotate through the stepper motor via the differential, and at the same time the crank and the connecting rod drive the moving rod to do reciprocating motion, so that the connecting frame drives the filter bag to shake, thereby accelerating the shedding of dust on the surface of the filter bag.

[0019] As a preferred technical solution of the present application, the shape of the rubber shell is a hollow tubular structure with wrinkles on the surface, and the rubber shell is a retractable structure.

[0020] Through the above technical solution, the connection between the moving rod and the casing is shielded by the retractable rubber shell.

[0021] As a preferred technical solution of the present application, the moving rod is connected to the connecting rod via a crank, and a sliding structure is formed between the moving rod and the casing.

[0022] Through the above technical solution, the movement of the moving rod is guided by the moving rod sliding inside the housing.

[0023] As a preferred technical solution of the present application, the sealing structure includes a fixed seat fixed on one side of the ash hopper, a connecting shaft inserted inside the fixed seat, a baffle fixed on the outside of the connecting shaft, a rubber pad installed at the bottom end of the baffle, and a turbine motor installed on one side of the ash hopper and connected to the rotating end and the connecting shaft.

[0024] Through the above technical solution, the baffle is driven to flip through the turbine motor via the connecting shaft, so that the rubber pad blocks the air inlet, thereby preventing dust from entering the interior of the air inlet during the cleaning process.

[0025] As a preferred technical solution of the present application, the connecting shaft extends to the outside of the ash hopper and is connected to the turbine motor, and a rotating structure is formed between the fixing seat and the connecting shaft.

[0026] Through the above technical solution, the connecting shaft is supported and fixed by the fixing seat.

[0027] Compared with the prior art, the utility model has the following beneficial effects:

[0028] In the scheme of this application:

[0029] The stepper motor drives the crank to rotate through the differential, and the crank and the connecting rod drive the moving rod to do reciprocating motion, so that the connecting frame drives the filter bag to shake, accelerating the dust falling off the surface of the filter bag, thereby realizing the efficient cleaning function of the device, improving the cleaning effect of the filter bag, more effectively removing the dust on the filter bag, and extending the service life of the filter bag, thereby enhancing the functionality of the device;

[0030] The turbine motor drives the baffle to flip through the connecting shaft, so that the rubber pad blocks the air inlet, preventing dust from entering the interior of the air inlet during the cleaning process. This realizes the air inlet isolation function of the device, making it easy to seal the air inlet during the cleaning process of the filter bag to prevent ash from entering the interior of the air inlet along with the airflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is one of the schematic diagrams of the structure of the utility model;

[0032] Figure 2This is the second schematic diagram of the structure of the utility model;

[0033] Figure 3 This is the third schematic diagram of the structure of the utility model;

[0034] Figure 4 This is a schematic diagram of the three-dimensional cross-sectional structure of the sealing structure provided in this application.

[0035] Markings in the figure: 1. Casing; 2. Inspection door; 3. Ash hopper; 4. Support frame; 5. Servo motor; 6. Air inlet; 7. Sealing structure; 701. Turbine motor; 702. Baffle; 703. Rubber pad; 704. Connecting shaft; 705. Fixed seat; 8. Cleaning structure; 801. Stepper motor; 802. Differential; 803. Crank; 804. Connecting rod; 805. Moving rod; 806. Connecting frame; 807. Rubber shell; 9. Air bag; 10. Solenoid valve; 11. Cover plate; 12. Air outlet; 13. Injection pipe; 14. Filter bag; 15. Paddle; 16. Support net. DETAILED DESCRIPTION

[0036] To make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments.

[0037] like Figure 1-4 As shown, a biomass boiler flue gas dust collector proposed in this embodiment includes a casing 1, and also includes:

[0038] An inspection door 2 is installed inside one side of the casing 1;

[0039] The ash hopper 3 is fixed at the bottom end of the casing 1, and a paddle 15 is installed at the bottom end of the ash hopper 3, a servo motor 5 connected to the paddle 15 is installed on one side of the ash hopper 3, and an air inlet 6 is fixed on one side of the ash hopper 3;

[0040] A sealing structure 7 is provided on one side of the air inlet 6 and is used to shield the air inlet 6;

[0041] The filter bags 14 are all installed inside the housing 1, and a support net 16 is installed inside the filter bags 14;

[0042] A blowing pipe 13 is inserted at the top of the housing 1, and a solenoid valve 10 is connected to one side of the blowing pipe 13, and an air bag 9 is connected to the bottom end of the solenoid valve 10;

[0043] A cover plate 11 is detachably mounted on the top of the casing 1, an air outlet 12 is mounted on the top of one side of the casing 1, and a support frame 4 is mounted on the bottom of the ash hopper 3;

[0044] The cleaning structure 8 is arranged inside the casing 1, wherein the cleaning structure 8 includes a moving rod 805 sliding inside the casing 1, a rubber shell 807 sleeved on the outside of the moving rod 805 and connected to the casing 1, a connecting frame 806 fixed on one side of the moving rod 805, and a transmission assembly arranged on one side of the moving rod 805.

[0045] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, the transmission assembly includes a connecting rod 804 rotatably connected to one side of the moving rod 805, a crank 803 installed on one side of the housing 1 and rotatably connected to the connecting rod 804, a differential 802 connected to the rotating end of the crank 803, and a stepper motor 801 installed on one side of the differential 802, the shape of the rubber shell 807 is a hollow tubular structure with a wrinkled surface, and the rubber shell 807 is a retractable structure, the moving rod 805 is connected to the connecting rod 804 through the crank 803, and the moving rod 805 and the housing 1 are connected. The stepper motor 801 drives the crank 803 to rotate through the differential 802, and then the crank 803 and the connecting rod 804 convert the rotational motion of the differential 802 into reciprocating motion, so that the connecting rod 804 pulls the moving rod 805 to move back and forth inside the casing 1. At the same time, the moving rod 805 drives the filter bag 14 to shake through the connecting frame 806, thereby accelerating the dust falling off the surface of the filter bag 14. The connection between the moving rod 805 and the casing 1 is shielded by the rubber shell 807, and the movement of the moving rod 805 is guided by the sliding of the moving rod 805 inside the casing 1.

[0046] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, as a preferred embodiment, on the basis of the above method, further, the sealing structure 7 includes a fixing seat 705 fixed on one side of the inside of the ash hopper 3, a connecting shaft 704 inserted in the fixing seat 705, a baffle 702 fixed on the outside of the connecting shaft 704, a rubber pad 703 installed at the bottom end of the baffle 702, and a turbine motor 701 installed on one side of the ash hopper 3 and connected to the rotating end and the connecting shaft 704, the connecting shaft 704 extends to the outside of the ash hopper 3 and is connected to the turbine motor 701, and a rotating structure is formed between the fixing seat 705 and the connecting shaft 704. By starting the turbine motor 701, the turbine motor 701 drives the baffle 702 to flip through the connecting shaft 704, so that the rubber pad 703 blocks the air inlet 6, thereby preventing dust from entering the inside of the air inlet 6 during the cleaning process, and starting the turbine motor 701 to rotate in the opposite direction to open the air inlet 6.

[0047] Specifically, when the biomass boiler flue gas dust collector is in use: the flue gas is introduced into the interior of the casing 1 through the air inlet 6, and then the flue gas passes through the filter bag 14, so that the filter bag 14 filters out the dust inside the flue gas, and then the flue gas is discharged through the air outlet 12, and the solenoid valve 10 is started to release the compressed air inside the airbag 9, so that the nozzle at the bottom of the blowing pipe 13 sprays the filter bag 14 to remove the dust attached to the surface of the filter bag 14, and at the same time the cleaning structure 8 vibrates the filter bag 14 to improve the cleaning effect of the filter bag 14, and the air inlet 6 is blocked by the sealing structure 7 to prevent dust from being discharged from the air inlet 6, and the dust is stored through the ash hopper 3, and the servo motor 5 is started to drive the paddle 15 to rotate to discharge the dust inside the ash hopper 3.

[0048] The stepper motor 801 drives the crank 803 to rotate through the differential 802, and then the crank 803 and the connecting rod 804 convert the rotational motion of the differential 802 into reciprocating motion, so that the connecting rod 804 pulls the moving rod 805 to move back and forth inside the housing 1. At the same time, the moving rod 805 drives the filter bag 14 to shake through the connecting frame 806, accelerating the dust falling off the surface of the filter bag 14. The connection between the moving rod 805 and the housing 1 is shielded by the rubber shell 807, and the movement of the moving rod 805 is guided by the sliding of the moving rod 805 inside the housing 1;

[0049] By starting the turbine motor 701, the turbine motor 701 drives the baffle 702 to flip through the connecting shaft 704, so that the rubber pad 703 blocks the air inlet 6, preventing dust from entering the interior of the air inlet 6 during the cleaning process, and starting the turbine motor 701 to rotate in the reverse direction to open the air inlet 6.

[0050] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the invention are included in the scope of the claims of the present invention.

Claims

1. A biomass boiler flue gas dust collector, comprising a housing (1), characterized in that: Also includes, An inspection door (2) installed inside one side of the housing (1); An ash hopper (3) is fixed to the bottom end of the casing (1), and a paddle (15) is installed at the bottom end of the ash hopper (3), a servo motor (5) connected to the paddle (15) is installed on one side of the ash hopper (3), and an air inlet (6) is fixed on one side of the ash hopper (3); A sealing structure (7) is arranged on one side of the air inlet (6) and is used to shield the air inlet (6); The filter bags (14) are installed inside the housing (1), and a support net (16) is installed inside the filter bags (14); A blowing pipe (13) is inserted into the top end of the housing (1), and one side of the blowing pipe (13) is connected to a solenoid valve (10), and the bottom end of the solenoid valve (10) is connected to an air bag (9); A cover plate (11) is detachably mounted on the top of the casing (1); an air outlet (12) is mounted on the top of one side of the casing (1); and a support frame (4) is mounted on the bottom of the ash hopper (3); A cleaning structure (8) is arranged inside the housing (1), wherein the cleaning structure (8) comprises a moving rod (805) sliding inside the housing (1), a rubber shell (807) sleeved on the outside of the moving rod (805) and connected to the housing (1), a connecting frame (806) fixed on one side of the moving rod (805), and a transmission assembly arranged on one side of the moving rod (805).

2. A biomass boiler flue gas dust collector according to claim 1, characterized in that: The transmission assembly comprises a connecting rod (804) rotatably connected to one side of a moving rod (805), a crank (803) mounted on one side of a housing (1) and rotatably connected to the connecting rod (804), a differential (802) connected to a rotating end of the crank (803), and a stepping motor (801) mounted on one side of the differential (802).

3. A biomass boiler flue gas dust collector according to claim 2, characterized in that: The rubber shell (807) is in the shape of a hollow tubular structure with wrinkles on the surface, and the rubber shell (807) is a retractable structure.

4. A biomass boiler flue gas dust collector according to claim 2, characterized in that: The moving rod (805) is connected to the connecting rod (804) via a crank (803), and a sliding structure is formed between the moving rod (805) and the casing (1).

5. The biomass boiler flue gas dust collector according to claim 1, characterized in that: The sealing structure (7) comprises a fixing seat (705) fixed to one side of the interior of the ash hopper (3), a connecting shaft (704) inserted into the fixing seat (705), a baffle (702) fixed to the outside of the connecting shaft (704), a rubber pad (703) installed at the bottom end of the baffle (702), and a turbine motor (701) installed at one side of the ash hopper (3) and connected to the rotating end and the connecting shaft (704).

6. A biomass boiler flue gas dust collector according to claim 5, characterized in that: The connecting shaft (704) extends to the outside of the ash hopper (3) and is connected to the turbine motor (701), and a rotating structure is formed between the fixing seat (705) and the connecting shaft (704).

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