Special self-dedusting mechanism for biomass fuel boiler

Abstract

The utility model discloses a special self-dedusting mechanism for a biomass fuel boiler, and relates to the technical field of combustion boiler cleaning. The device comprises a base, a combustion bin is arranged at the top end of the base, an exhaust pipe is arranged on one side of the top end of the combustion bin, a filter screen cleaning assembly is arranged in the exhaust pipe, a discharging assembly is arranged in the combustion bin, and an opening and closing assembly is arranged on the side, close to the discharging assembly, of the outer wall of the combustion bin. A feeding device is arranged on the side, away from the discharging assembly, of the outer wall of the combustion bin, a draught fan is arranged at the top end of the exhaust pipe, the filter screen cleaning assembly comprises a conical filter screen, the conical filter screen is slidably installed in the exhaust pipe, and a connecting frame is fixedly arranged on the conical filter screen. The filter screen cleaning assembly is arranged, solid particles in combustion smoke are preliminarily pretreated through the conical filter screen, the filter screen cleaning assembly is used for cleaning the solid particles attached to the outer wall of the conical filter screen, and the situation that the solid particles are attached to the outer wall of the conical filter screen and block the filter screen is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of combustion boiler cleaning, in particular to a special self-dust removal mechanism for biomass fuel boilers. Background Art

[0002] A biomass fuel boiler is a device that uses biomass as fuel to burn and generate heat. Biomass fuels include wood chips, wood pellets, biogas, straw, and waste. The advantages of biomass fuel boilers include environmental protection, renewable energy, energy conservation, and reduction of carbon emissions and global warming effects, making it an important way to replace traditional fossil fuels.

[0003] During the combustion process, biomass fuel boilers will produce a large amount of flue gas, which is mixed with some solid particles. The solid particles in the flue gas need to be pre-treated by filtering. During the filter interception process, some solid particles will adhere to the surface of the filter, causing the filter to be blocked and affecting the filtering effect. Secondly, the filtered solid particles do not need to be manually cleaned at regular intervals. Manual cleaning is inefficient and poses a safety hazard. In response to the above problems, the inventors proposed a self-dust removal mechanism specifically for biomass fuel boilers to solve the above problems. Utility Model Content

[0004] In order to solve the problem of automatically cleaning the solid particles attached to the outer surface of the filter and automatically discharging the solid particles, the purpose of the utility model is to provide a special self-dust removal mechanism for biomass fuel boilers.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: a self-dust removal mechanism for a biomass fuel boiler, comprising a base, a combustion chamber is provided at the top of the base, an exhaust pipe is provided on one side of the top of the combustion chamber, a filter cleaning assembly is provided in the exhaust pipe, a discharge assembly is provided in the combustion chamber, an opening and closing assembly is provided on the side of the outer wall of the combustion chamber close to the discharge assembly, a loading device is provided on the side of the outer wall of the combustion chamber away from the discharge assembly, and a fan is provided on the top of the exhaust pipe;

[0006] The filter cleaning assembly includes a conical filter, which is slidably installed in the exhaust pipe. A connecting frame is fixed on the conical filter, and the connecting frame and the exhaust pipe are slidably connected. A fixing plate is fixed on the top of the combustion chamber near the connecting frame. A No. 1 rotating rod is rotatably provided on the fixing plate, and the No. 1 rotating rod is slidably connected to the connecting frame.

[0007] Preferably, the unloading assembly includes an external plate and an extension plate, and the external plate and the extension plate are both fixedly mounted on the outer wall of the combustion chamber. A unloading plate is slidingly provided in the combustion chamber close to the side of the external plate, and a movable frame is fixedly provided on the unloading plate, and the movable frame is slidingly connected to the combustion chamber. A drive shaft is rotatably provided on the external plate, and a No. 2 rotating rod is fixedly provided on the outer wall of the drive shaft, and the No. 2 rotating rod is slidingly connected to the movable frame.

[0008] Preferably, the opening and closing assembly includes two symmetrically distributed sliding frames, which are fixedly installed on the outer wall of the combustion chamber. A lifting door plate is slidably provided in the sliding frame, and a connecting plate is rotatably provided in the middle of the outer side of the lifting door plate. A rotating plate is rotatably provided at the other end of the connecting plate, and a transmission shaft is rotatably fixed at the other end of the rotating plate, and the transmission shaft is rotatably connected to the external plate.

[0009] Preferably, a cross rod is fixedly provided on the inner wall of the exhaust pipe, a guide rod is fixedly provided on the middle part of the bottom end of the cross rod, and the conical filter is slidably connected to the guide rod, a No. 1 motor is fixedly provided on the top of the combustion chamber, and the driving end of the No. 1 motor is connected to the rotating shaft through a pulley transmission group.

[0010] Preferably, a partition plate is fixedly provided on the inner wall of the combustion chamber near the blanking plate, and the blanking plate is slidably connected to the partition plate. A baffle is provided between the partition plate and the exhaust pipe, and the baffle is fixedly connected to the combustion chamber.

[0011] Preferably, two symmetrically distributed guide rods are fixedly provided on the outer wall of the combustion chamber close to the side of the movable frame, and the guide rods are slidingly connected to the movable frame. A No. 2 motor is fixedly provided on the outer wall of the expansion plate, and the driving end of the No. 2 motor is connected to the driving shaft through a pulley transmission group.

[0012] Preferably, a connecting shaft is rotatably provided on one side of the external plate close to the transmission shaft, and the connecting shaft is connected to the driving shaft through a synchronous wheel transmission group.

[0013] Preferably, a second bevel gear is fixedly provided at the end of the transmission shaft, a first bevel gear is fixedly provided at the end of the connecting shaft, and the first bevel gear is meshedly connected with the second bevel gear.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The utility model provides a filter cleaning assembly to preliminarily pre-treat solid particles in the combustion flue gas through the conical filter, so that the filter cleaning assembly cleans the solid particles attached to the outer wall of the conical filter, preventing the solid particles from adhering to the outer wall of the conical filter and clogging the filter, thereby affecting the filtration efficiency. The above operation achieves the effect of self-cleaning of the conical filter;

[0016] 2. The utility model sets a blanking component and an opening and closing component, so that the blanking component pushes the solid particles accumulated at the bottom to move toward the discharge port through the blanking plate. At the same time, the opening and closing component drives the lifting door plate to move upward synchronously to open the discharge port. When the blanking plate is reset, the lifting door plate is simultaneously driven down to close the discharge port. The above operations achieve the effect of automatically cleaning the accumulated solid particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the overall dissected structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the discharge port position in the utility model

[0021] Figure 4 This is a structural diagram of the filter cleaning assembly of the utility model;

[0022] Figure 5 This is a schematic structural diagram of the blanking assembly in the utility model;

[0023] Figure 6 This is a schematic structural diagram of the opening and closing assembly of the present invention;

[0024] Figure 7 for Figure 2 A schematic diagram of the structure at center A;

[0025] Figure 8 for Figure 3 A magnified schematic diagram of the structure at point B in the middle;

[0026] Figure 9 for Figure 5 Enlarged schematic diagram of the structure at point C in the middle.

[0027] In the figure: 1. Base; 2. Combustion chamber; 201. Partition plate; 202. Baffle; 3. Exhaust pipe; 4. Filter cleaning assembly; 401. Conical filter; 402. Connecting frame; 403. Fixed plate; 404. Rotating shaft; 405. Rotating rod No. 1; 406. Cross rod; 407. Guide rod; 408. Motor No. 1; 5. Unloading assembly; 501. External plate; 502. Extension plate; 503. Unloading plate; 504. Moving frame; 505. Drive shaft; 506. Rotating rod No. 2; 507. Motor No. 2; 508. Guide rod; 6. Opening and closing assembly; 601. Sliding frame; 602. Lifting door plate; 603. Connecting plate; 604. Rotating plate; 605. Drive shaft; 606. Connecting shaft; 607. Bevel gear No. 1; 608. Bevel gear No. 2; 7. Loading device; 8. Fan. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] like Figure 1-9 As shown, the utility model provides a self-dust removal mechanism for a biomass fuel boiler, comprising a base 1, a combustion chamber 2 is provided at the top of the base 1, an exhaust pipe 3 is provided on one side of the top of the combustion chamber 2, a filter cleaning assembly 4 is provided in the exhaust pipe 3, a discharge assembly 5 is provided in the combustion chamber 2, an opening and closing assembly 6 is provided on the side of the outer wall of the combustion chamber 2 close to the discharge assembly 5, a loading device 7 is provided on the side of the outer wall of the combustion chamber 2 away from the discharge assembly 5, and a fan 8 is provided on the top of the exhaust pipe 3;

[0030] The filter cleaning assembly 4 includes a conical filter 401, which is slidably installed in the exhaust pipe 3. A connecting frame 402 is fixed on the conical filter 401, and the connecting frame 402 and the exhaust pipe 3 are slidingly connected. A fixing plate 403 is fixed on the top of the combustion chamber 2 near the connecting frame 402. A No. 1 rotating rod 405 is rotatably provided on the fixing plate 403, and the No. 1 rotating rod 405 is slidingly connected to the connecting frame 402.

[0031] By adopting the above technical solution, the conical filter 401 is made to move up and down in the exhaust pipe 3 .

[0032] The unloading assembly 5 includes an external plate 501 and an extension plate 502, both of which are fixedly mounted on the outer wall of the combustion chamber 2. A unloading plate 503 is slidingly provided on the side of the combustion chamber 2 close to the external plate 501. A movable frame 504 is fixedly provided on the unloading plate 503, and the movable frame 504 is slidingly connected to the combustion chamber 2. A driving shaft 505 is rotatably provided on the external plate 501, and a No. 2 rotating rod 506 is fixedly provided on the outer wall of the driving shaft 505, and the No. 2 rotating rod 506 is slidingly connected to the movable frame 504.

[0033] By adopting the above technical solution, the blanking plate 503 pushes the settled dust particles to move toward the discharge port.

[0034] The opening and closing assembly 6 includes two symmetrically distributed sliding frames 601, which are fixedly installed on the outer wall of the combustion chamber 2. A lifting door plate 602 is slidingly provided in the sliding frame 601, and a connecting plate 603 is rotatably provided in the middle of the outer side of the lifting door plate 602. A rotating plate 604 is rotatably provided at the other end of the connecting plate 603, and a transmission shaft 605 is fixedly provided at the other end of the rotating plate 604, and the transmission shaft 605 is rotatably connected to the external plate 501.

[0035] By adopting the above technical solution, the lifting door panel 602 is lifted, opened and closed during the movement of the blanking plate 503.

[0036] A cross rod 406 is fixedly provided on the inner wall of the exhaust pipe 3, a guide rod 407 is fixedly provided at the middle of the bottom end of the cross rod 406, and the conical filter 401 is slidably connected to the guide rod 407. A No. 1 motor 408 is fixedly provided at the top of the combustion chamber 2, and the driving end of the No. 1 motor 408 is connected to the rotating shaft 404 through a pulley transmission group.

[0037] By adopting the above technical solution, the conical filter screen 401 is moved up and down under the guidance of the guide rod 407.

[0038] A partition plate 201 is fixedly provided on the inner wall of the combustion chamber 2 near the blanking plate 503, and the blanking plate 503 is slidingly connected to the partition plate 201. A baffle 202 is provided between the partition plate 201 and the exhaust pipe 3, and the baffle 202 is fixedly connected to the combustion chamber 2.

[0039] By adopting the above technical solution, the interior of the combustion chamber 2 is divided into two compartments by the partition plate 201.

[0040] Two symmetrically distributed guide rods 508 are fixedly provided on the outer wall of the combustion chamber 2 close to the movable frame 504, and the guide rods 508 are slidingly connected to the movable frame 504. A No. 2 motor 507 is fixedly provided on the outer wall of the expansion plate 502, and the driving end of the No. 2 motor 507 is connected to the driving shaft 505 through a pulley transmission group.

[0041] By adopting the above technical solution, the second motor 507 drives the driving shaft 505 to rotate.

[0042] A connecting shaft 606 is rotatably provided on one side of the external plate 501 close to the transmission shaft 605 , and the connecting shaft 606 is connected to the driving shaft 505 through a synchronous wheel transmission group.

[0043] By adopting the above technical solution, the driving shaft 505 drives the connecting shaft 606 to rotate.

[0044] A second bevel gear 608 is fixedly provided at the end of the transmission shaft 605 , and a first bevel gear 607 is fixedly provided at the end of the connecting shaft 606 , and the first bevel gear 607 is meshedly connected with the second bevel gear 608 .

[0045] By adopting the above technical solution, the connecting shaft 606 drives the transmission shaft 605 to rotate.

[0046] Working principle: The biomass fuel to be burned is transported to the left compartment of the combustion chamber 2 through the feeding device 7 for combustion. A large amount of smoke will be generated during the combustion of the biomass fuel. At this time, the fan 8 is controlled to be turned on, and the smoke in the combustion chamber 2 is discharged through the exhaust pipe 3 through the fan 8. The smoke generated by the combustion of the biomass fuel passes through the partition plate 201 and the baffle 202 and enters the right compartment. In the process of being discharged through the exhaust pipe 3, the smoke is intercepted and filtered by the conical filter 401 to prevent solid particles in the smoke from being discharged. The filtered smoke is transported to the deep smoke cleaning device through the conveying pipeline under the action of the fan 8 for cleaning. The solid particles that are initially intercepted are Part of the particles will fall to the bottom of the right cabin, and the other part will adhere to the outer surface of the conical filter 401. When the solid particles on the outer surface of the conical filter 401 need to be cleaned, the control turns on the No. 1 motor 408. The driving end of the No. 1 motor 408 rotates through the pulley transmission group to drive the rotating shaft 404 to rotate. The rotating shaft 404 rotates through the No. 1 rotating rod 405 and the connecting frame 402 to drive the conical filter 401 to move up and down quickly under the guidance of the guide rod 407. The conical filter 401 is shaken by the rapid up and down reciprocating movement to clean the solid particles attached to the conical filter 401, and the cleaned solid particles fall to the bottom.

[0047] When it is necessary to clean the solid particles accumulated at the bottom of the right compartment, the control is turned on to start the No. 2 motor 507. The driving end of the No. 2 motor 507 drives the driving shaft 505 to rotate one circle through the pulley transmission group. When the driving shaft 505 rotates half a circle, the unloading plate 503 is driven to move from the left to the right through the No. 2 rotating rod 506 and the moving frame 504. During the movement of the unloading plate 503, the driving shaft 505 drives the transmission shaft 605 to rotate half a circle synchronously through the connecting shaft 606. The transmission shaft 605 drives the lifting door plate 602 to move upward through the rotating plate 604 and the connecting plate 603 to open the discharge port. The unloading plate 503 discharges the accumulated solid particles from the discharge port. The driving shaft 505 continues to rotate the remaining half of the circle to reset the unloading plate 503. While the unloading plate 503 is reset, it drives the lifting door plate 602 to reset and close the discharge port.

[0048] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A self-dust removal mechanism for a biomass fuel boiler, comprising a base (1), characterized in that: A combustion chamber (2) is provided at the top of the base (1), an exhaust pipe (3) is provided at one side of the top of the combustion chamber (2), a filter cleaning assembly (4) is provided in the exhaust pipe (3), a material discharge assembly (5) is provided in the combustion chamber (2), an opening and closing assembly (6) is provided on the side of the outer wall of the combustion chamber (2) close to the material discharge assembly (5), a material loading device (7) is provided on the side of the outer wall of the combustion chamber (2) away from the material discharge assembly (5), and a fan (8) is provided at the top of the exhaust pipe (3); The filter cleaning assembly (4) comprises a conical filter (401), the conical filter (401) being slidably mounted in the exhaust pipe (3), a connecting frame (402) being fixedly mounted on the conical filter (401), and the connecting frame (402) and the exhaust pipe (3) being slidably connected, a fixing plate (403) being fixedly mounted on the top of the combustion chamber (2) near the connecting frame (402), a first rotating rod (405) being rotatably mounted on the fixing plate (403), and the first rotating rod (405) being slidably connected to the connecting frame (402).

2. A self-dust removal mechanism for a biomass fuel boiler as claimed in claim 1, characterized in that: The unloading assembly (5) comprises an external plate (501) and an extension plate (502), the external plate (501) and the extension plate (502) are both fixedly mounted on the outer wall of the combustion chamber (2), a unloading plate (503) is slidably mounted on the combustion chamber (2) near the external plate (501), a moving frame (504) is fixedly mounted on the unloading plate (503), and the moving frame (504) is slidably connected to the combustion chamber (2), a driving shaft (505) is rotatably mounted on the external plate (501), a second rotating rod (506) is fixedly mounted on the outer wall of the driving shaft (505), and the second rotating rod (506) is slidably connected to the moving frame (504).

3. A self-dust removal mechanism for a biomass fuel boiler as claimed in claim 1, characterized in that: The opening and closing assembly (6) comprises two symmetrically distributed sliding frames (601), wherein the sliding frames (601) are fixedly mounted on the outer wall of the combustion chamber (2), wherein a lifting door plate (602) is slidably arranged in the sliding frame (601), wherein a connecting plate (603) is rotatably arranged in the middle of the outer side of the lifting door plate (602), wherein a rotating plate (604) is rotatably arranged at the other end of the connecting plate (603), wherein a transmission shaft (605) is rotatably fixedly arranged at the other end of the rotating plate (604), and wherein the transmission shaft (605) is rotatably connected to the external plate (501).

4. A self-dust removal mechanism for a biomass fuel boiler as claimed in claim 1, characterized in that: A cross rod (406) is fixedly provided on the inner wall of the exhaust pipe (3), a guide rod (407) is fixedly provided at the middle of the bottom end of the cross rod (406), and the conical filter (401) is slidably connected to the guide rod (407), and a No. 1 motor (408) is fixedly provided on the top end of the combustion chamber (2), and the driving end of the No. 1 motor (408) is transmission-connected to the rotating shaft (404) via a pulley transmission group.

5. The self-dust removal mechanism for a biomass fuel boiler according to claim 1, characterized in that: A partition plate (201) is fixedly provided on one side of the inner wall of the combustion chamber (2) close to the unloading plate (503), and the unloading plate (503) is slidably connected to the partition plate (201). A baffle plate (202) is provided between the partition plate (201) and the exhaust pipe (3), and the baffle plate (202) is fixedly connected to the combustion chamber (2).

6. A self-dust removal mechanism for a biomass fuel boiler as claimed in claim 2, characterized in that: Two symmetrically distributed guide rods (508) are fixedly provided on one side of the outer wall of the combustion chamber (2) close to the moving frame (504), and the guide rods (508) are slidably connected to the moving frame (504). A second motor (507) is fixedly provided on the outer wall of the expansion plate (502), and a driving end of the second motor (507) is connected to a driving shaft (505) via a pulley transmission group.

7. A self-dust removal mechanism for a biomass fuel boiler as claimed in claim 2, characterized in that: A connecting shaft (606) is rotatably provided on one side of the external plate (501) close to the transmission shaft (605), and the connecting shaft (606) is transmission-connected to the driving shaft (505) via a synchronous wheel transmission group.

8. A self-dust removal mechanism for a biomass fuel boiler as claimed in claim 7, characterized in that: A second bevel gear (608) is fixedly provided at the end of the transmission shaft (605), a first bevel gear (607) is fixedly provided at the end of the connecting shaft (606), and the first bevel gear (607) is meshingly connected with the second bevel gear (608).

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