External biomass particle burner

Abstract

The invention relates to the technical field of combustion equipment, and discloses an external biomass particle combustion machine which comprises a combustion box, a conveying cylinder, a feeding hopper, a filter screen, an observation window, a slag removal device, an air blowing device, an intermittent feeding device, a discharging port and the like. The filter screen is fixedly connected with the inner wall of the combustion box, the slag removal device is arranged in the combustion box and fixedly connected with the combustion box, the air blowing device is connected with the combustion box and the slag removal device, and the intermittent feeding device is connected with the conveying cylinder and the air blowing device. By arranging the crushing plate and the filter screen, biomass particles and coked residues after combustion can be crushed by the crushing plate and then fall to the bottom of the combustion box through the filter screen, the situation that too much coked residues are accumulated and normal operation of the combustion machine is affected is prevented, meanwhile, frequent cleaning of workers is not needed, and manual work is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of combustion equipment, and in particular to an external biomass particle burner. Background Art

[0002] The burner is a high-efficiency and energy-saving biomass combustion equipment developed mainly for industrial kilns, coating, drying, die-casting and other industries. This series of products uses biomass particles as fuel and adopts semi-gasification composite combustion technology. It has a reasonable structure and fully automatic intelligent control. At present, the burners used on the market mainly use spiral feeding method. The fuel in the hopper is transported to the combustion box through the screw for full combustion.

[0003] Existing biomass pellet burners usually burn biomass pellets internally, and the waste after combustion is not easy to discharge. In addition, the biomass pellets will coke and form residues during the combustion process, which will not only affect the normal operation of the burner, but also require frequent manual cleaning. Therefore, an external biomass pellet burner is proposed. Summary of the invention

[0004] The present invention aims to solve the technical problem of how to discharge waste and coked residues generated after the combustion of biomass particles in time to prevent the normal operation of the burner from being affected, and provides an external biomass particle burner.

[0005] The technical solution adopted by the present invention to solve its technical problem is: An external biomass pellet burner comprises four supporting columns, a combustion box, a horizontal plate, a conveying cylinder, a feeding hopper, a vertical plate, a filter screen, an observation window, a slag removal device, an air blowing device, an intermittent feeding device, a discharge port and a controller.

[0006] The combustion box is arranged above the four supporting columns, and the bottom of the combustion box is fixedly connected to the tops of the four supporting columns respectively.

[0007] The horizontal plate is transversely arranged on the side of the combustion box, and the horizontal plate is fixedly connected to the combustion box.

[0008] The conveying cylinder is transversely arranged on the side of the combustion box and is located above the transverse plate. The side of the conveying cylinder is fixedly connected to the combustion box and communicated with the combustion box.

[0009] The vertical plate is vertically arranged inside the conveying cylinder, and the vertical plate is fixedly connected to the inner wall of the conveying cylinder.

[0010] The feed hopper is arranged on the upper part of the conveying cylinder, and is located on the side of the vertical plate close to the combustion box. One end of the feed hopper is connected with the conveying cylinder, and the other end is connected with the outside.

[0011] The filter screen is transversely arranged inside the combustion box and is located below the connection point between the conveying cylinder and the combustion box. The filter screen is fixedly connected to the inner wall of the combustion box.

[0012] The observation window is arranged at the front part of the combustion box, and the observation window is fixedly connected with the combustion box.

[0013] The slag removal device is arranged inside the combustion box, and the slag removal device is fixedly connected to the combustion box.

[0014] The air blowing device is arranged on the side of the combustion box close to the conveying cylinder, and the air blowing device is connected with the combustion box and the slag removing device.

[0015] The intermittent feeding device is arranged at the lower part of the conveying cylinder and above the blowing device. The intermittent feeding device is connected with the conveying cylinder and the blowing device.

[0016] The discharge port is arranged at the bottom of the combustion box, one end of the discharge port is communicated with the combustion box, and the other end is communicated with the outside.

[0017] The controller is arranged on the side of the combustion box away from the conveying cylinder, the controller is fixedly connected to the combustion box, and the controller is electrically connected to the slag removal device.

[0018] When using this equipment, the staff pours the biomass pellet fuel into the feed hopper, and then the biomass pellets enter the conveying cylinder. The staff uses the intermittent feeding device to intermittently introduce the biomass pellets into the combustion box. The biomass pellets burn in the combustion box, and the smoke generated by the combustion is discharged through the exhaust port. The blowing device conveys air into the combustion box to improve the combustion efficiency of the biomass pellets. The slag removal device breaks up the burned fuel and coked residue, and the broken residue falls to the bottom of the combustion box through the filter net and is then discharged from the discharge port.

[0019] Furthermore, the slag removal device includes a rotary joint, a first cylinder, a hollow tube, two crushing plates, two cleaning plates, and a plurality of scrapers.

[0020] The rotary joint is arranged inside the combustion box and is located directly below the filter screen. The bottom of the rotary joint is fixedly connected to the bottom inner wall of the combustion box.

[0021] The first cylinder is arranged inside the combustion box and above the rotary joint. The axis of the first cylinder coincides with the axis of the rotary joint. The bottom of the first cylinder is fixedly connected to the top of the rotary joint.

[0022] The hollow tube is vertically arranged inside the combustion box and above the first cylinder. The hollow tube vertically penetrates the filter screen and is vertically slidably connected to the filter screen. The bottom of the hollow tube is fixedly connected to the telescopic end of the first cylinder.

[0023] The two crushing plates are symmetrically arranged inside the combustion box and above the filter screen. There are cavities inside the two crushing plates. The cavities in the two crushing plates are respectively connected to the hollow tubes. The two crushing plates are respectively fixedly connected to the hollow tubes.

[0024] The two cleaning plates are symmetrically arranged inside the combustion box, below the filter screen, and respectively arranged on both sides of the first cylinder. The sides of the two cleaning plates are respectively fixedly connected to the first cylinder.

[0025] A plurality of scrapers are vertically arranged inside the combustion box and are respectively arranged below the two cleaning plates. The upper ends of the scrapers are respectively fixedly connected to the bottoms of the two cleaning plates, and the lower ends are respectively tightly attached to the bottom inner wall of the combustion box.

[0026] When the coked residue needs to be broken up, the first cylinder drives the two cleaning plates to rotate, and drives the two crushing plates to rotate, and the two crushing plates crush the burned biomass particles and the coked residue. The staff controls the telescopic end of the first cylinder to perform lifting movements through the controller, and the telescopic end of the first cylinder drives the hollow tube to perform lifting movements, and the hollow tube drives the two crushing plates to perform lifting movements, so that the two crushing plates can squeeze the coked residue during lifting and lowering, and further crush the coked residue. The crushed residue and fuel are filtered through the filter and fall to the bottom of the combustion box.

[0027] The two cleaning plates drive the plurality of scrapers to rotate in a positive direction, and the plurality of scrapers clean the residues at the bottom of the combustion box and clean the residues toward the discharge port, and finally the broken residues and fuel are discharged through the discharge port.

[0028] Furthermore, a plurality of scraping hairs are evenly distributed on the lower part of the two cleaning plates.

[0029] The scraper can sweep the crushed residue to the discharge port.

[0030] Furthermore, the bottom of the hollow tube is fixedly connected to the telescopic end of the first cylinder by welding.

[0031] The telescopic end of the first cylinder can stably drive the hollow tube to perform lifting motion.

[0032] Furthermore, the blowing device includes a cylinder body, a second cylinder, a piston, an air inlet pipe, an exhaust pipe, two one-way valves, a plurality of air supply boxes, a plurality of springs, a plurality of wedge blocks, a first gear, a connecting bar, and a first rack.

[0033] The cylinder body is arranged on the side of the combustion box close to the conveying cylinder and is located above the horizontal plate. The bottom of the cylinder body is fixedly connected to the top of the horizontal plate.

[0034] The second cylinder is arranged inside the cylinder body, close to the right inner wall of the cylinder body, and the second cylinder is fixedly connected to the right inner wall of the cylinder body.

[0035] The piston is vertically arranged inside the cylinder body, the piston is slidably connected with the cylinder body along the inner wall of the cylinder body, and the piston is fixedly connected with the telescopic end of the second cylinder.

[0036] The air intake pipe is arranged on the side of the cylinder body away from the combustion box, one end of the air intake pipe is connected with the cylinder body, and the other end is connected with the outside.

[0037] The exhaust pipe is arranged at the upper part of the cylinder body, one end of the exhaust pipe passes through the combustion box and is communicated with the hollow pipe, and the other end of the exhaust pipe is communicated with the cylinder body.

[0038] The two one-way valves are respectively arranged inside the air intake pipe and the exhaust pipe, and the two one-way valves are respectively fixedly connected to the air intake pipe and the exhaust pipe.

[0039] Several air supply boxes are transversely arranged inside the combustion box and respectively arranged on the upper part of the two crushing plates. The lower parts of the several air supply boxes are respectively connected with the cavities inside the two crushing plates. The upper parts of the several air supply boxes are provided with air ports and are connected with the combustion box.

[0040] The first gear is horizontally arranged inside the combustion box, below the hollow tube, above the two cleaning plates, and sleeved on the outside of the non-telescopic end of the first cylinder. The axis of the first gear coincides with the axis of the rotary joint, and the first gear is fixedly connected to the first cylinder.

[0041] The connecting strip is arranged on the side of the cylinder body close to the combustion box, one end of the connecting strip passes through the side of the cylinder body and extends to the rear side of the first gear through the side of the combustion box, and the other end of the connecting strip is fixedly connected to the piston.

[0042] The first rack is transversely arranged inside the combustion box and between the first rack and the connecting bar. The first rack is fixedly connected to the front part of the connecting bar and meshes with the first gear.

[0043] When it is necessary to introduce air into the combustion box, the staff controls the telescopic end of the second cylinder to move right through the controller, and the telescopic end of the second cylinder drives the piston to move right, and the piston drives the connecting strip to move right, driving one side of the outside air to enter the cylinder through the intake pipe and the one-way valve. Then the staff controls the telescopic end of the second cylinder to move left through the controller, and the telescopic end of the second cylinder drives the piston to move left, and the piston drives the connecting strip to move left, pushing the air in the cylinder through the one-way valve, the exhaust pipe, the hollow pipe, and the cavity in the crushing plate in turn, and then enters the air supply box, and then is discharged to the biomass pellet fuel in the combustion box through the air port on the upper part of the air supply box, thereby improving the combustion efficiency of the biomass pellets.

[0044] Furthermore, each air supply box has two springs and two wedge blocks in the cavity.

[0045] The two springs are symmetrically arranged inside the air supply box, and the ends of the two springs that are far away from each other are fixedly connected to the inner wall of the air supply box.

[0046] The two wedge blocks are symmetrically arranged inside the air supply box and on the sides opposite to the two springs, and the two wedge blocks are fixedly connected to the two springs respectively.

[0047] The air squeezes the wedge block, causing the wedge block to move in the opposite direction and squeeze the spring, so that the air can be discharged to the biomass particle fuel in the combustion box through the air port, thereby improving the combustion efficiency of the biomass particles.

[0048] Furthermore, the plurality of air supply boxes and the plurality of wedge blocks are all made of high temperature resistant stainless steel or other materials.

[0049] Able to withstand the high temperature of biomass pellet combustion.

[0050] Furthermore, the intermittent feeding device includes a first rotating shaft, a spiral roller, a one-way overrunning clutch, a first bevel gear, a second rotating shaft, a second bevel gear, a second gear, and a second rack.

[0051] The first rotating shaft is transversely arranged inside the conveying cylinder, the first rotating shaft transversely penetrates the vertical plate, and the first rotating shaft is rotatably connected with the vertical plate.

[0052] The spiral roller is arranged inside the conveying cylinder, on the side of the vertical plate close to the combustion box, and is sleeved on the outside of the first rotating shaft. The axis of the spiral roller coincides with the axis of the first rotating shaft, and the spiral roller is fixedly connected to the first rotating shaft.

[0053] The one-way overrunning clutch is vertically arranged inside the conveying cylinder, on the side of the vertical plate away from the combustion box, and is sleeved on the outside of the first rotating shaft. The axis of the one-way overrunning clutch coincides with the axis of the first rotating shaft, and the one-way overrunning clutch is fixedly connected to the first rotating shaft.

[0054] The first bevel gear is vertically arranged inside the transmission cylinder and sleeved on the outer side of the one-way overrunning clutch. The axis of the first bevel gear coincides with the axis of the first rotating shaft. The first bevel gear is fixedly connected to the outer ring of the one-way overrunning clutch.

[0055] The second rotating shaft is vertically arranged at the lower part of the conveying cylinder, at the side of the one-way overrunning clutch away from the vertical plate, and at the front side of the connecting strip. The second rotating shaft is rotationally connected with the conveying cylinder and the horizontal plate.

[0056] The second bevel gear is transversely arranged inside the transmission cylinder and sleeved on the outside of the second rotating shaft. The axis of the second bevel gear coincides with the axis of the second rotating shaft. The second bevel gear is fixedly connected to the second rotating shaft and meshes with the first bevel gear.

[0057] The second rack is transversely arranged above the transverse plate and between the connecting bar and the second rotating shaft, and the second rack is fixedly connected to the connecting bar.

[0058] The second gear is arranged horizontally above the horizontal plate, in front of the connecting strip, and sleeved on the outside of the second rotating shaft. The axis of the second gear coincides with the axis of the second rotating shaft. The second gear is fixedly connected to the second rotating shaft and meshes with the second rack.

[0059] When it is necessary to intermittently transmit the biomass pellet fuel into the combustion box, the second rack drives the second gear to rotate forward, the second gear drives the second shaft to rotate forward, the second shaft drives the second bevel gear to rotate forward, the second bevel gear drives the first bevel gear to rotate forward, the first bevel gear drives the one-way overrunning clutch to rotate forward, the one-way overrunning clutch drives the first shaft to rotate forward, the first shaft drives the spiral roller to rotate forward, the spiral roller pushes the biomass pellets into the combustion box, and the biomass pellet fuel is ignited in the combustion box.

[0060] The second rack drives the second gear to rotate in the opposite direction, the second gear drives the second rotating shaft to rotate in the opposite direction, the second rotating shaft drives the second bevel gear to rotate in the opposite direction, the second bevel gear drives the first bevel gear to rotate in the opposite direction, the first bevel gear only drives the outer ring of the one-way overrunning clutch to rotate in the opposite direction, the one-way overrunning clutch does not drive the first rotating shaft to rotate in the opposite direction, so that the first rotating shaft does not drive the spiral roller to rotate in the opposite direction, and then the spiral roller stops introducing biomass particle fuel into the combustion box, realizing intermittent feeding, so that the biomass particles in the combustion box are completely burned.

[0061] Furthermore, a smoke exhaust port is provided on the upper part of the combustion box.

[0062] This allows the smoke generated when biomass pellet fuel is burned to be discharged.

[0063] Furthermore, the lower part of the conveying cylinder and the horizontal plate are provided with rods for support.

[0064] This keeps the conveyor tube and the cross plate stable.

[0065] Beneficial effects of the present invention: 1. The present invention provides a first cylinder, a hollow tube, two crushing plates and other structures, so that the biomass particles and coked residues after combustion can be crushed by the crushing plates, and then fall to the bottom of the combustion box through the filter screen, thereby preventing the coked residues from accumulating too much and affecting the normal operation of the burner. At the same time, there is no need for regular cleaning by the staff, thus reducing manual labor.

[0066] 2. The present invention provides structures such as a cylinder, an exhaust pipe, an air supply box, a spring, a wedge-shaped block, etc., and blows air toward the bottom of the biomass particles to increase the oxygen content at the bottom of the biomass particles, so that the biomass particles burn fully and the combustion efficiency of the biomass particles is improved. In addition, the spring and the wedge-shaped block can prevent the biomass particle fuel from entering the air supply box and prevent the air supply box from being blocked.

[0067] 3. The present invention can intermittently introduce biomass particle fuel into the combustion box by arranging a second rotating shaft, a second gear, a second rack, a one-way overrunning clutch, a rotating roller and other structures, thereby avoiding fuel accumulation and incomplete combustion that may be caused by continuous feeding. BRIEF DESCRIPTION OF THE DRAWINGS

[0068] Figure 1 This is a front view cross-sectional structural diagram of the external biomass pellet burner; Figure 2 This is a schematic diagram of the internal structure of the air supply box of the external biomass pellet burner; Figure 3 This is a top view of the connecting strip structure of the external biomass pellet burner; Figure 4 It is a front view structural schematic diagram of the external biomass pellet burner.

[0069] Explanation of the reference numerals in the accompanying drawings: 1. Support column; 2. Combustion box; 3. Horizontal plate; 4. Conveying cylinder; 5. Feed hopper; 6. Vertical plate; 7. Filter screen; 8. Observation window; 9. Rotary joint; 10. First cylinder; 11. Hollow tube; 12. Crushing plate; 13. Cleaning plate; 14. Scraping; 15. Cylinder body; 16. Second cylinder; 17. Piston; 18. Inlet pipe; 19. Exhaust pipe; 20. One-way valve; 21. Air supply box; 22. Spring; 23. Wedge block; 24. First gear; 25. Connecting strip; 26. First rack; 27. First rotating shaft; 28. Spiral roller; 29. ​​One-way overrunning clutch; 30. First bevel gear; 31. Second rotating shaft; 32. Second bevel gear; 33. Second gear; 34. Second rack; 35. Control; 36. Discharge port. DETAILED DESCRIPTION

[0070] The concept and technical effects of the present invention will be clearly and completely described below in conjunction with embodiments to fully understand the purpose, features and effects of the present invention.

[0071] like Figure 1-4 As shown, the technical solution adopted by the present invention to solve its technical problem is: An external biomass pellet burner includes four support columns 1, a combustion box 2, a horizontal plate 3, a conveying cylinder 4, a feed hopper 5, a vertical plate 6, a filter screen 7, an observation window 8, a slag removal device, an air blowing device, an intermittent feeding device, a discharge port 36, and a controller 35.

[0072] The combustion box 2 is arranged above the four support columns 1 , and the bottom of the combustion box 2 is fixedly connected to the top of the four support columns 1 respectively.

[0073] The transverse plate 3 is transversely arranged on the side of the combustion box 2 , and the transverse plate 3 is fixedly connected to the combustion box 2 .

[0074] The conveying cylinder 4 is transversely arranged on the side of the combustion box 2 and is located above the transverse plate 3 . The side of the conveying cylinder 4 is fixedly connected to the combustion box 2 and communicated with the combustion box 2 .

[0075] The vertical plate 6 is vertically arranged inside the conveying cylinder 4 , and the vertical plate 6 is fixedly connected to the inner wall of the conveying cylinder 4 .

[0076] The feed hopper 5 is arranged on the upper part of the conveying cylinder 4, and is located on the side of the vertical plate 6 close to the combustion box 2. One end of the feed hopper 5 is connected to the conveying cylinder 4, and the other end is connected to the outside.

[0077] The filter screen 7 is transversely arranged inside the combustion box 2 , below the connection point between the conveying cylinder 4 and the combustion box 2 , and the filter screen 7 is fixedly connected to the inner wall of the combustion box 2 .

[0078] The observation window 8 is arranged at the front part of the combustion box 2 , and the observation window 8 is fixedly connected to the combustion box 2 .

[0079] The slag removal device is arranged inside the combustion box 2 , and the slag removal device is fixedly connected to the combustion box 2 .

[0080] The air blowing device is arranged on the side of the combustion box 2 close to the conveying cylinder 4, and the air blowing device is connected to the combustion box 2 and the slag removing device.

[0081] The intermittent feeding device is arranged at the lower part of the conveying cylinder 4 and above the blowing device. The intermittent feeding device is connected to the conveying cylinder 4 and connected to the blowing device.

[0082] The discharge port 36 is disposed at the bottom of the combustion box 2 , one end of the discharge port 36 is connected to the combustion box 2 , and the other end is connected to the outside.

[0083] The controller 35 is arranged on the side of the combustion box 2 away from the conveying tube 4, the controller 35 is fixedly connected to the combustion box 2, and the controller 35 is electrically connected to the slag removal device.

[0084] When using this equipment, the staff pours the biomass pellet fuel into the feed hopper 5, and then the biomass pellets enter the conveying cylinder 4. The staff uses the intermittent feeding device to intermittently introduce the biomass pellets into the combustion box 2. The biomass pellets burn in the combustion box, and the smoke generated by the combustion is discharged through the exhaust port. The blowing device transports air into the combustion box 2 to improve the combustion efficiency of the biomass pellets. The slag removal device breaks up the burned fuel and coked residues, and the broken residues fall to the bottom of the combustion box 2 through the filter screen 7, and are then discharged from the discharge port 36.

[0085] The slag removal device includes a rotary joint 9, a first cylinder 10, a hollow tube 11, two crushing plates 12, two cleaning plates 13, and a plurality of scrapers 14.

[0086] The rotary joint 9 is arranged inside the combustion box 2 and is directly below the filter screen 7 . The bottom of the rotary joint 9 is fixedly connected to the bottom inner wall of the combustion box 2 .

[0087] The first cylinder 10 is arranged inside the combustion box 2 and above the rotary joint 9. The axis of the first cylinder 10 coincides with the axis of the rotary joint 9. The bottom of the first cylinder 10 is fixedly connected to the top of the rotary joint 9.

[0088] The hollow tube 11 is vertically arranged inside the combustion box 2 and above the first cylinder 10 . The hollow tube 11 vertically penetrates the filter screen 7 and is vertically slidably connected to the filter screen 7 . The bottom of the hollow tube 11 is fixedly connected to the telescopic end of the first cylinder 10 .

[0089] The two crushing plates 12 are laterally symmetrically arranged inside the combustion box 2 and above the filter screen 7. There are cavities inside the two crushing plates 12. The cavities in the two crushing plates 12 are respectively connected to the hollow tubes 11, and the two crushing plates 12 are respectively fixedly connected to the hollow tubes 11.

[0090] The two cleaning plates 13 are laterally symmetrically arranged inside the combustion box 2, below the filter screen 7, and are respectively arranged on both sides of the first cylinder 10. The sides of the two cleaning plates 13 are respectively fixedly connected to the first cylinder 10.

[0091] A plurality of scrapers 14 are vertically arranged inside the combustion box 2 and are respectively arranged below the two cleaning plates 13 . The upper ends of the scrapers 14 are respectively fixedly connected to the bottoms of the two cleaning plates 13 , and the lower ends are respectively tightly attached to the bottom inner wall of the combustion box 2 .

[0092] When the coked residue needs to be broken up, the first cylinder 10 drives the two cleaning plates 13 to rotate, and drives the two crushing plates 12 to rotate, and the two crushing plates 12 crush the burned biomass particles and the coked residue. The staff controls the telescopic end of the first cylinder 10 to do lifting movement through the controller 35, and the telescopic end of the first cylinder 10 drives the hollow tube 11 to do lifting movement, and the hollow tube 11 drives the two crushing plates 12 to do lifting movement, so that the two crushing plates 12 can squeeze the coked residue when lifting, and further crush the coked residue. The crushed residue and fuel are filtered through the filter 7 and fall to the bottom of the combustion box 2.

[0093] The two cleaning plates 13 drive the plurality of scrapers 14 to rotate in the forward direction, and the plurality of scrapers 14 clean the residues at the bottom of the combustion box 2 and clean the residues toward the discharge port 36 . Finally, the crushed residues and fuel are discharged through the discharge port 36 .

[0094] A plurality of scraping bristles 14 are evenly distributed on the lower part of the two cleaning plates 13 .

[0095] The scraping bristles 14 can sweep the crushed residues toward the discharge port 36 .

[0096] The bottom of the hollow tube 11 is fixedly connected to the telescopic end of the first cylinder 10 by welding.

[0097] The telescopic end of the first cylinder 10 can stably drive the hollow tube 11 to perform lifting motion.

[0098] The blowing device includes a cylinder body 15 , a second cylinder 16 , a piston 17 , an air inlet pipe 18 , an air exhaust pipe 19 , two one-way valves 20 , a plurality of air supply boxes 21 , a plurality of springs 22 , a plurality of wedge blocks 23 , a first gear 24 , a connecting strip 25 , and a first rack 26 .

[0099] The cylinder body 15 is arranged on the side of the combustion box 2 close to the conveying cylinder 4 and is located above the transverse plate 3 . The bottom of the cylinder body 15 is fixedly connected to the top of the transverse plate 3 .

[0100] The second cylinder 16 is disposed inside the cylinder body 15 , close to the right inner wall of the cylinder body 15 , and the second cylinder 16 is fixedly connected to the right inner wall of the cylinder body 15 .

[0101] The piston 17 is vertically disposed inside the cylinder body 15 , the piston 17 is slidably connected to the cylinder body 15 along the inner wall of the cylinder body 15 , and the piston 17 is fixedly connected to the telescopic end of the second cylinder 16 .

[0102] The air intake pipe 18 is disposed on the side of the cylinder body 15 away from the combustion box 2 . One end of the air intake pipe 18 is connected to the cylinder body 15 , and the other end is connected to the outside.

[0103] The exhaust pipe 19 is disposed at the upper portion of the cylinder body 15 . One end of the exhaust pipe 19 passes through the combustion box 2 and is communicated with the hollow pipe 11 . The other end of the exhaust pipe 19 is communicated with the cylinder body 15 .

[0104] The two one-way valves 20 are respectively disposed inside the intake pipe 18 and the exhaust pipe 19 , and the two one-way valves 20 are respectively fixedly connected to the intake pipe 18 and the exhaust pipe 19 .

[0105] A plurality of air supply boxes 21 are transversely arranged inside the combustion box 2 and are respectively arranged on the upper parts of the two crushing plates 12. The lower parts of the plurality of air supply boxes 21 are respectively connected with the cavities inside the two crushing plates 12. The upper parts of the plurality of air supply boxes 21 have air ports and are connected with the combustion box 2.

[0106] The first gear 24 is horizontally arranged inside the combustion box 2, below the hollow tube 11, above the two cleaning plates 13, and sleeved on the outside of the non-telescopic end of the first cylinder 10. The axis of the first gear 24 coincides with the axis of the rotary joint 9, and the first gear 24 is fixedly connected to the first cylinder 10.

[0107] The connecting strip 25 is arranged on the side of the cylinder body 15 close to the combustion box 2. One end of the connecting strip 25 passes through the side of the cylinder body 15 and extends through the side of the combustion box 2 to the rear side of the first gear 24. The other end of the connecting strip 25 is fixedly connected to the piston 17.

[0108] The first rack 26 is transversely arranged inside the combustion box 2 and between the first rack 26 and the connecting bar 25 . The first rack 26 is fixedly connected to the front portion of the connecting bar 25 and meshes with the first gear 24 .

[0109] When it is necessary to introduce air into the combustion box 2, the staff controls the telescopic end of the second cylinder 16 to move rightward through the controller 35, and the telescopic end of the second cylinder 16 drives the piston 17 to move rightward, and the piston 17 drives the connecting strip 25 to move rightward, driving one side of the outside air to enter the cylinder body 15 through the air intake pipe 18 and the one-way valve 20. Then the staff controls the telescopic end of the second cylinder 16 to move leftward through the controller 35, and the telescopic end of the second cylinder 16 drives the piston 17 to move leftward, and the piston 17 drives the connecting strip 25 to move leftward, pushing the air in the cylinder body 15 to pass through the one-way valve 20, the exhaust pipe 19, the hollow tube 11, and the cavity in the crushing plate 12 in sequence, and then enter the air supply box 21, and then discharge to the biomass particle fuel in the combustion box 2 through the air port at the upper part of the air supply box 21, thereby improving the combustion efficiency of the biomass particles.

[0110] Each air supply box 21 has two springs 22 and two wedge blocks 23 in the cavity.

[0111] The two springs 22 are symmetrically disposed inside the air supply box 21 , and ends of the two springs 22 that are away from each other are fixedly connected to the inner wall of the air supply box 21 .

[0112] The two wedge blocks 23 are symmetrically arranged inside the air supply box 21 and on opposite sides of the two springs 22 . The two wedge blocks 23 are fixedly connected to the two springs 22 .

[0113] The air squeezes the wedge block 23, causing the wedge block 23 to move in the opposite direction and squeeze the spring 22, so that the air can be discharged to the biomass particle fuel in the combustion box 2 through the air port, thereby improving the combustion efficiency of the biomass particles.

[0114] The air supply boxes 21 and the wedge blocks 23 are all made of high temperature resistant stainless steel or other materials.

[0115] Able to withstand the high temperature of biomass pellet combustion.

[0116] The intermittent feeding device includes a first rotating shaft 27 , a spiral roller 28 , a one-way overrunning clutch 29 , a first bevel gear 30 , a second rotating shaft 31 , a second bevel gear 32 , a second gear 33 , and a second rack 34 .

[0117] The first rotating shaft 27 is transversely disposed inside the conveying cylinder 4 , and the first rotating shaft 27 transversely penetrates the vertical plate 6 , and the first rotating shaft 27 is rotatably connected to the vertical plate 6 .

[0118] The spiral roller 28 is arranged inside the conveying cylinder 4, on the side of the vertical plate 6 close to the combustion box 2, and is sleeved on the outside of the first rotating shaft 27. The axis of the spiral roller 28 coincides with the axis of the first rotating shaft 27, and the spiral roller 28 is fixedly connected to the first rotating shaft 27.

[0119] The one-way overrunning clutch 29 is vertically arranged inside the conveying cylinder 4, on the side of the vertical plate 6 away from the combustion box 2, and is sleeved on the outer side of the first rotating shaft 27. The axis of the one-way overrunning clutch 29 coincides with the axis of the first rotating shaft 27, and the one-way overrunning clutch 29 is fixedly connected to the first rotating shaft 27.

[0120] The first bevel gear 30 is vertically arranged inside the transmission cylinder 4 and sleeved on the outer side of the one-way overrunning clutch 29 . The axis of the first bevel gear 30 coincides with the axis of the first rotating shaft 27 . The first bevel gear 30 is fixedly connected to the outer ring of the one-way overrunning clutch 29 .

[0121] The second rotating shaft 31 is vertically arranged at the lower part of the conveying cylinder 4 , at the side of the one-way overrunning clutch 29 away from the vertical plate 6 , and at the front side of the connecting bar 25 . The second rotating shaft 31 is rotationally connected to the conveying cylinder 4 and the horizontal plate 3 .

[0122] The second bevel gear 32 is transversely arranged inside the conveying cylinder 4 and sleeved on the outer side of the second rotating shaft 31 . The axis of the second bevel gear 32 coincides with the axis of the second rotating shaft 31 . The second bevel gear 32 is fixedly connected to the second rotating shaft 31 and meshes with the first bevel gear 30 .

[0123] The second rack 34 is transversely disposed above the transverse plate 3 and between the connecting bar 25 and the second rotating shaft 31 . The second rack 34 is fixedly connected to the connecting bar 25 .

[0124] The second gear 33 is laterally arranged above the cross plate 3, in front of the connecting bar 25, and sleeved on the outside of the second rotating shaft 31. The axis of the second gear 33 coincides with the axis of the second rotating shaft 31. The second gear 33 is fixedly connected to the second rotating shaft 31 and meshes with the second rack 34.

[0125] When it is necessary to intermittently transmit biomass pellet fuel into the combustion box 2, the second rack 34 drives the second gear 33 to rotate forward, the second gear 33 drives the second shaft 31 to rotate forward, the second shaft 31 drives the second bevel gear 32 to rotate forward, the second bevel gear 32 drives the first bevel gear 30 to rotate forward, the first bevel gear 30 drives the one-way overrunning clutch 29 to rotate forward, the one-way overrunning clutch 29 drives the first shaft 27 to rotate forward, the first shaft 27 drives the spiral roller 28 to rotate forward, the spiral roller 28 pushes the biomass pellets into the combustion box 2, and the biomass pellet fuel is ignited in the combustion box 2.

[0126] The second rack 34 drives the second gear 33 to rotate in the opposite direction, the second gear 33 drives the second rotating shaft 31 to rotate in the opposite direction, the second rotating shaft 31 drives the second bevel gear 32 to rotate in the opposite direction, the second bevel gear 32 drives the first bevel gear 30 to rotate in the opposite direction, the first bevel gear 30 only drives the outer ring of the one-way overrunning clutch 29 to rotate in the opposite direction, the one-way overrunning clutch 29 does not drive the first rotating shaft 27 to rotate in the opposite direction, so that the first rotating shaft 27 does not drive the spiral roller 28 to rotate in the opposite direction, and then the spiral roller 28 stops introducing the biomass particle fuel into the combustion box 2, so as to realize intermittent feeding and make the biomass particles in the combustion box 2 burn completely.

[0127] There is a smoke exhaust port on the upper part of the combustion box 2.

[0128] This allows the smoke generated when biomass pellet fuel is burned to be discharged.

[0129] The lower parts of the conveying cylinder 4 and the cross plate 3 are provided with rods for supporting.

[0130] This keeps the conveying cylinder 4 and the cross plate 3 stable.

[0131] Working principle: When using this equipment, the staff introduces the biomass pellet fuel into the feed hopper 5, and the biomass pellet fuel falls along the feed hopper 5 to the surface of the spiral roller 28. Then the staff controls the telescopic end of the second cylinder 16 to move right through the controller 35, and the telescopic end of the second cylinder 16 drives the piston 17 to move right, and the piston 17 drives the connecting strip 25 to move right, driving one side of the outside air to enter the cylinder body 15 through the intake pipe 18 and the one-way valve 20.

[0132] When the piston 17 drives the connecting bar 25 to move right, the connecting bar 25 drives the first rack 26 to move right, drives the second rack 34 to move right, the second rack 34 drives the second gear 33 to rotate forward, the second gear 33 drives the second rotating shaft 31 to rotate forward, the second rotating shaft 31 drives the second bevel gear 32 to rotate forward, the second bevel gear 32 drives the first bevel gear 30 to rotate forward, the first bevel gear 30 drives the one-way overrunning clutch 29 to rotate forward, the one-way overrunning clutch 29 drives the first rotating shaft 27 to rotate forward, the first rotating shaft 27 drives the spiral roller 28 to rotate forward, the spiral roller 28 pushes the biomass particles to the combustion box 2, the biomass particle fuel is ignited in the combustion box 2, releases heat, and the smoke generated by the combustion is discharged through the smoke exhaust port at the upper part of the combustion box 2.

[0133] When the connecting bar 25 drives the first rack 26 to move right, the first rack 26 drives the first gear 24 to rotate forward, the first gear 24 drives the first cylinder 10 to rotate forward, the first cylinder 10 drives the two cleaning plates 13 to rotate forward, drives the two crushing plates 12 to rotate forward, the two crushing plates 12 drive a number of air supply boxes 21 to rotate forward, the two crushing plates 12 crush the biomass particles and coked residues after combustion, the staff controls the telescopic end of the first cylinder 10 to perform lifting movement through the control 35 device 35, the telescopic end of the first cylinder 10 drives the hollow tube 11 to perform lifting movement, the hollow tube 11 drives the two crushing plates 12 to perform lifting movement, so that the two crushing plates 12 can squeeze the coked residue during lifting, further crush the coked residue, and the crushed residue and fuel are filtered through the filter 7 and fall to the bottom of the combustion box 2.

[0134] When the first cylinder 10 drives the two cleaning plates 13 to rotate forward, the two cleaning plates 13 drive the plurality of scrapers 14 to rotate forward, and the plurality of scrapers 14 clean the residue at the bottom of the combustion box 2 and clean the residue toward the discharge port 36. Finally, the crushed residue and fuel are discharged through the discharge port 36.

[0135] When the staff controls the telescopic end of the second cylinder 16 to move leftward through the controller 35, the telescopic end of the second cylinder 16 drives the piston 17 to move leftward, and the piston 17 drives the connecting strip 25 to move leftward, pushing the air in the cylinder body 15 to pass through the one-way valve 20, the exhaust pipe 19, the hollow tube 11, and the cavity in the crushing plate 12 in sequence, and then enter the air supply box 21, and the air squeezes the wedge block 23, so that the wedge block 23 moves in the opposite direction and squeezes the spring 22, and then the air can be discharged to the biomass particle fuel in the combustion box 2 through the air port, thereby improving the combustion efficiency of the biomass particles.

[0136] When the piston 17 drives the connecting bar 25 to move left, the connecting bar 25 drives the first rack 26 to move left, drives the second rack 34 to move left, the second rack 34 drives the second gear 33 to rotate in the opposite direction, the second gear 33 drives the second rotating shaft 31 to rotate in the opposite direction, the second rotating shaft 31 drives the second bevel gear 32 to rotate in the opposite direction, the second bevel gear 32 drives the first bevel gear 30 to rotate in the opposite direction, the first bevel gear 30 only drives the outer ring of the one-way overrunning clutch 29 to rotate in the opposite direction, the one-way overrunning clutch 29 does not drive the first rotating shaft 27 to rotate in the opposite direction, so that the first rotating shaft 27 does not drive the spiral roller 28 to rotate in the opposite direction, and then the spiral roller 28 stops introducing the biomass particle fuel into the combustion box 2, so as to realize intermittent feeding and make the biomass particles in the combustion box 2 burn completely.

[0137] When the connecting bar 25 drives the first rack 26 to move left, the first rack 26 drives the first gear 24 to rotate in the opposite direction, and the first gear 24 drives the first cylinder 10 to rotate in the opposite direction. The first cylinder 10 drives the two cleaning plates 13 to rotate in the opposite direction, drives the two crushing plates 12 to rotate in the opposite direction, and the two crushing plates 12 drive several air supply boxes 21 to rotate in the opposite direction, so that the air discharged from the upper part of the air supply box 21 can be blown to the biomass particle fuel at different positions, and the two crushing plates 12 crush the burned biomass particles and coked residues, and then the staff controls the telescopic end of the first cylinder 10 to perform lifting movement through the control 35 device 35, the telescopic end of the first cylinder 10 drives the hollow tube 11 to perform lifting movement, and the hollow tube 11 drives the two crushing plates 12 to perform lifting movement, so that the two crushing plates 12 can squeeze the coked residue during lifting, and further crush the coked residue, and the crushed residue and fuel are filtered through the filter 7 and fall to the bottom of the combustion box 2.

[0138] When the first cylinder 10 drives the two cleaning plates 13 to rotate in the opposite direction, the two cleaning plates 13 drive the plurality of scrapers 14 to rotate in the opposite direction, and the plurality of scrapers 14 clean the residue at the bottom of the combustion box 2 and clean the residue toward the discharge port 36. Finally, the crushed residue and fuel are discharged through the discharge port 36.

[0139] The above embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative work shall all fall within the scope of protection of the present invention.

Claims

1. An external biomass pellet burner, characterized in that: It comprises four support columns (1), a combustion box (2), a horizontal plate (3), a conveying cylinder (4), a feed hopper (5), a vertical plate (6), a filter screen (7), an observation window (8), a slag removal device, an air blowing device, an intermittent feeding device, a discharge port (36), and a controller (35); The combustion box (2) is arranged above the four support columns (1), and the bottom of the combustion box (2) is fixedly connected to the tops of the four support columns (1) respectively; The transverse plate (3) is transversely arranged on the side of the combustion box (2), and the transverse plate (3) is fixedly connected to the combustion box (2); The conveying cylinder (4) is transversely arranged on the side of the combustion box (2) and is located above the transverse plate (3); the side of the conveying cylinder (4) is fixedly connected to the combustion box (2) and communicated with the combustion box (2); The vertical plate (6) is vertically arranged inside the conveying cylinder (4), and the vertical plate (6) is fixedly connected to the inner wall of the conveying cylinder (4); The feed hopper (5) is arranged on the upper part of the conveying cylinder (4), and is located on the side of the vertical plate (6) close to the combustion box (2). One end of the feed hopper (5) is connected to the conveying cylinder (4), and the other end is connected to the outside. The filter screen (7) is transversely arranged inside the combustion box (2), below the connection point between the conveying cylinder (4) and the combustion box (2), and the filter screen (7) is fixedly connected to the inner wall of the combustion box (2); The observation window (8) is arranged at the front part of the combustion box (2), and the observation window (8) is fixedly connected to the combustion box (2); The slag removal device is arranged inside the combustion box (2), and the slag removal device is fixedly connected to the combustion box (2); The air blowing device is arranged on the side of the combustion box (2) close to the conveying cylinder (4), and the air blowing device is connected to the combustion box (2) and the slag removal device; The intermittent feeding device is arranged at the lower part of the conveying cylinder (4) and above the blowing device. The intermittent feeding device is connected to the conveying cylinder (4) and connected to the blowing device. The discharge port (36) is arranged at the bottom of the combustion box (2), one end of the discharge port (36) is connected to the combustion box (2), and the other end is connected to the outside; The controller (35) is arranged on the side of the combustion box (2) away from the conveying cylinder (4), the controller (35) is fixedly connected to the combustion box (2), and the controller (35) is electrically connected to the slag removal device.

2. The external biomass pellet burner according to claim 1 is characterized in that The slag removal device comprises a rotary joint (9), a first cylinder (10), a hollow tube (11), two crushing plates (12), two cleaning plates (13), and a plurality of scrapers (14); The rotary joint (9) is arranged inside the combustion box (2) and is located directly below the filter screen (7), and the bottom of the rotary joint (9) is fixedly connected to the bottom inner wall of the combustion box (2); The first cylinder (10) is arranged inside the combustion box (2) and above the rotary joint (9), the axis of the first cylinder (10) coincides with the axis of the rotary joint (9), and the bottom of the first cylinder (10) is fixedly connected to the top of the rotary joint (9); The hollow tube (11) is vertically arranged inside the combustion box (2) and is located above the first cylinder (10). The hollow tube (11) vertically penetrates the filter screen (7) and is vertically slidably connected to the filter screen (7). The bottom of the hollow tube (11) is fixedly connected to the telescopic end of the first cylinder (10). Two crushing plates (12) are symmetrically arranged inside the combustion box (2) and above the filter screen (7). The two crushing plates (12) have cavities inside. The cavities inside the two crushing plates (12) are respectively connected to the hollow tubes (11). The two crushing plates (12) are respectively fixedly connected to the hollow tubes (11). The two cleaning plates (13) are symmetrically arranged inside the combustion box (2) and below the filter screen (7), and are respectively arranged on both sides of the first cylinder (10), and the sides of the two cleaning plates (13) are respectively fixedly connected to the first cylinder (10); The plurality of scrapers (14) are vertically arranged inside the combustion box (2), and are respectively arranged below the two cleaning plates (13); the upper ends of the plurality of scrapers (14) are respectively fixedly connected to the bottoms of the two cleaning plates (13), and the lower ends are respectively tightly attached to the bottom inner walls of the combustion box (2).

3. The external biomass pellet burner according to claim 2 is characterized in that : A plurality of scraping bristles (14) are evenly distributed at the lower part of the two cleaning plates (13).

4. The external biomass pellet burner according to claim 2 is characterized in that The bottom of the hollow tube (11) is fixedly connected to the telescopic end of the first cylinder (10) by welding.

5. The external biomass pellet burner according to claim 2 is characterized in that The blowing device comprises a cylinder body (15), a second cylinder (16), a piston (17), an air inlet pipe (18), an air outlet pipe (19), two one-way valves (20), a plurality of air supply boxes (21), a plurality of springs (22), a plurality of wedge blocks (23), a first gear (24), a connecting bar (25), and a first rack (26); The cylinder body (15) is arranged on the side of the combustion box (2) close to the conveying cylinder (4) and above the transverse plate (3), and the bottom of the cylinder body (15) is fixedly connected to the top of the transverse plate (3); The second cylinder (16) is arranged inside the cylinder body (15), close to the right inner wall of the cylinder body (15), and the second cylinder (16) is fixedly connected to the right inner wall of the cylinder body (15); The piston (17) is vertically arranged inside the cylinder body (15), the piston (17) is slidably connected to the cylinder body (15) along the inner wall of the cylinder body (15), and the piston (17) is fixedly connected to the telescopic end of the second cylinder (16); The air intake pipe (18) is arranged on a side of the cylinder body (15) away from the combustion box (2), one end of the air intake pipe (18) is connected to the cylinder body (15), and the other end is connected to the outside; The exhaust pipe (19) is arranged at the upper part of the cylinder body (15), one end of the exhaust pipe (19) passes through the combustion box (2) and is connected to the hollow tube (11), and the other end of the exhaust pipe (19) is connected to the cylinder body (15); The two one-way valves (20) are respectively arranged inside the air intake pipe (18) and the exhaust pipe (19), and the two one-way valves (20) are respectively fixedly connected to the air intake pipe (18) and the exhaust pipe (19); A plurality of air supply boxes (21) are transversely arranged inside the combustion box (2), and are respectively arranged on the upper parts of the two crushing plates (12); the lower parts of the plurality of air supply boxes (21) are respectively communicated with the cavities inside the two crushing plates (12); the upper parts of the plurality of air supply boxes (21) are provided with air ports, and are communicated with the combustion box (2); The first gear (24) is transversely arranged inside the combustion box (2), below the hollow tube (11), above the two cleaning plates (13), and sleeved on the outside of the non-telescopic end of the first cylinder (10). The axis of the first gear (24) coincides with the axis of the rotary joint (9), and the first gear (24) is fixedly connected to the first cylinder (10); The connecting strip (25) is arranged on the side of the cylinder (15) close to the combustion box (2), one end of the connecting strip (25) passes through the side of the cylinder (15), and passes through the side of the combustion box (2) to extend to the rear side of the first gear (24), and the other end of the connecting strip (25) is fixedly connected to the piston (17); The first rack (26) is transversely arranged inside the combustion box (2), and is arranged between the first rack (26) and the connecting bar (25). The first rack (26) is fixedly connected to the front part of the connecting bar (25) and is meshed with the first gear (24).

6. The external biomass pellet burner according to claim 5, characterized in that : Each of the air supply boxes (21) has two springs (22) and two wedge blocks (23) in the cavity; Two springs (22) are respectively and laterally symmetrically arranged inside the air supply box (21), and ends of the two springs (22) that are away from each other are respectively fixedly connected to the inner wall of the air supply box (21); The two wedge blocks (23) are symmetrically arranged inside the air supply box (21) and on opposite sides of the two springs (22). The two wedge blocks (23) are fixedly connected to the two springs (22) respectively.

7. The external biomass pellet burner according to claim 6, characterized in that The plurality of air supply boxes (21) and the plurality of wedge blocks (23) are all made of high temperature resistant stainless steel or other materials.

8. The external biomass pellet burner according to claim 5, characterized in that The intermittent feeding device comprises a first rotating shaft (27), a spiral roller (28), a one-way overrunning clutch (29), a first bevel gear (30), a second rotating shaft (31), a second bevel gear (32), a second gear (33), and a second rack (34); The first rotating shaft (27) is transversely arranged inside the conveying cylinder (4), the first rotating shaft (27) transversely penetrates the vertical plate (6), and the first rotating shaft (27) is rotatably connected to the vertical plate (6); The spiral roller (28) is arranged inside the conveying cylinder (4), on the side of the vertical plate (6) close to the combustion box (2), and is sleeved on the outside of the first rotating shaft (27). The axis of the spiral roller (28) coincides with the axis of the first rotating shaft (27), and the spiral roller (28) is fixedly connected to the first rotating shaft (27); The one-way overrunning clutch (29) is vertically arranged inside the conveying cylinder (4), on the side of the vertical plate (6) away from the combustion box (2), and sleeved on the outside of the first rotating shaft (27). The axis of the one-way overrunning clutch (29) coincides with the axis of the first rotating shaft (27), and the one-way overrunning clutch (29) is fixedly connected to the first rotating shaft (27); The first bevel gear (30) is vertically arranged inside the transmission cylinder (4) and sleeved on the outer side of the one-way overrunning clutch (29); the axis of the first bevel gear (30) coincides with the axis of the first rotating shaft (27); the first bevel gear (30) is fixedly connected to the outer ring of the one-way overrunning clutch (29); The second rotating shaft (31) is vertically arranged at the lower part of the conveying cylinder (4), at the side of the one-way overrunning clutch (29) away from the vertical plate (6), and at the front side of the connecting bar (25). The second rotating shaft (31) is rotatably connected to the conveying cylinder (4) and the horizontal plate (3); The second bevel gear (32) is transversely arranged inside the conveying cylinder (4) and sleeved on the outer side of the second rotating shaft (31); the axis of the second bevel gear (32) coincides with the axis of the second rotating shaft (31); the second bevel gear (32) is fixedly connected to the second rotating shaft (31) and meshes with the first bevel gear (30); The second rack (34) is transversely arranged above the transverse plate (3) and between the connecting bar (25) and the second rotating shaft (31), and the second rack (34) is fixedly connected to the connecting bar (25); The second gear (33) is arranged horizontally above the transverse plate (3), in front of the connecting bar (25), and sleeved on the outer side of the second rotating shaft (31). The axis of the second gear (33) coincides with the axis of the second rotating shaft (31). The second gear (33) is fixedly connected to the second rotating shaft (31) and meshes with the second rack (34).

9. The external biomass pellet burner according to claim 8, characterized in that The combustion box (2) has a smoke exhaust port at its upper portion.

10. The external biomass pellet burner according to claim 9, characterized in that The conveying cylinder (4) and the lower part of the horizontal plate (3) are both provided with rods for supporting.

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