Deslagging device for biomass boiler

Abstract

The utility model relates to the technical field of biomass boilers, and discloses a deslagging device for a biomass boiler, which comprises a shell, an end cover is detachably mounted at one end of the shell, and a hollow shaft is rotatably mounted at the end part of the shell and the end part of the end cover together. During use, flowing water is poured into the hollow shaft, the hollow shaft is driven by the driving assembly to rotate, the spiral blades are driven to rotate synchronously when the hollow shaft rotates, and when ash residues move towards the discharging pipe, the water in the hollow shaft is heated through heat transmission, so that energy is utilized when the ash residues are discharged, and the phenomenon of energy waste is avoided; in the rotating process of the hollow shaft, the lifting plate can be driven to do reciprocating lifting motion through the connecting effect of the lifting unit, so that the mounting plate, the mounting shaft and the dredging rods are driven to do synchronous lifting motion, ash in the square feeding pipe is dredged, and therefore the blocking phenomenon in the square feeding pipe is effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of biomass boiler technology, and more specifically to a slag removal device for a biomass boiler. Background Technology

[0002] Biomass boilers are a type of boiler that uses biomass energy as fuel. They are categorized into biomass steam boilers, biomass hot water boilers, biomass hot air furnaces, biomass thermal oil furnaces, vertical biomass boilers, and horizontal biomass boilers. These boilers utilize a reciprocating grate, the most suitable combustion equipment for biomass fuels. In terms of structural design, they have a larger furnace space compared to traditional boilers, and a very rational arrangement of secondary air, which facilitates the complete combustion of the large amount of volatile matter instantly released during biomass fuel combustion.

[0003] Biomass boilers produce a large amount of ash after combustion. During the ash removal process, a large amount of heat is lost into the air, resulting in energy waste. Furthermore, due to the large amount and fast speed of ash removal, blockages are easily caused during feeding, making continuous feeding difficult. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a slag discharge device for biomass boilers to solve the problems existing in the background art.

[0005] This utility model provides the following technical solution: a slag removal device for a biomass boiler, comprising a shell, an end cap detachably installed at one end of the shell, a hollow shaft rotatably installed at the end of the shell and the end cap, a spiral blade fixedly installed on the outer periphery of the hollow shaft, one end of the hollow shaft extending outside the shell and provided with a drive assembly, a feed hole opened on the inner periphery of the shell, a square feed pipe sealed and installed in the feed hole, a feed hopper fixedly installed at the top of the square feed pipe, a dredging assembly movably installed inside the square feed pipe, the dredging assembly including a lifting plate, a rectangular sliding hole opened on the side of the square feed pipe, the lifting plate slidably installed in the rectangular sliding hole, one side of the lifting plate extending into the square feed pipe and fixedly provided with an mounting plate, an mounting shaft fixedly installed on the side of the mounting plate, a dredging shaft fixedly installed on the mounting shaft, a plurality of dredging rods evenly arranged on the outer periphery of the dredging shaft, and a lifting unit adapted to the drive assembly provided on the other side of the lifting plate.

[0006] Preferably, the side of the end cap is provided with multiple threaded holes, and the end of the housing is provided with multiple threaded grooves, and fixing bolts are respectively threaded into the multiple threaded holes and multiple threaded grooves.

[0007] Preferably, both ends of the hollow shaft are rotatably mounted with connecting pipes, and the other ends of the two connecting pipes are respectively fixedly connected to an inlet pipe and an outlet pipe.

[0008] Preferably, the drive assembly includes a lower fixing plate, which is fixedly installed at the end of the housing. A drive motor is fixedly installed at the bottom of the lower fixing plate. The output shaft of the drive motor passes through the lower fixing plate and is fixedly sleeved with a first bevel gear. A second bevel gear is fixedly sleeved on the outer circumferential wall of the hollow shaft.

[0009] Preferably, the lifting unit includes a reciprocating lead screw, an upper fixing plate is fixedly installed at the end of the housing, a rotating shaft is rotatably installed on the upper fixing plate, a third bevel gear is fixedly sleeved at the bottom end of the rotating shaft, the top end of the rotating shaft is fixedly connected to the bottom end of the reciprocating lead screw, a side plate is rotatably installed at the top end of the reciprocating lead screw, the side of the side plate is fixedly connected to the side of the square feed pipe, and a connecting plate is threaded onto the outer periphery of the reciprocating lead screw, the side of the connecting plate is fixedly connected to the side of the lifting plate.

[0010] Preferably, a plurality of support legs are fixedly installed on the outer periphery of the housing, and the bottom of each of the plurality of support legs is provided with an anti-slip pad.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] 1. This utility model involves filling a hollow shaft with flowing water, which is then driven to rotate by a drive assembly. As the hollow shaft rotates, the spiral blades rotate synchronously, allowing the water inside the hollow shaft to be heated through heat transfer as the ash moves toward the discharge pipe. This enables the utilization of energy during the discharge of ash and avoids energy waste.

[0013] 2. In this utility model, during the rotation of the hollow shaft, the lifting unit can drive the lifting plate to move up and down repeatedly, thereby driving the mounting plate, mounting shaft, and multiple unblocking rods to move up and down synchronously, unblocking the ash and slag in the square feed pipe, thus effectively preventing blockage in the square feed pipe. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a partial cross-sectional view of the shell and end cap of this utility model;

[0016] Figure 3 This is a partial cross-sectional view of the shell, square feed pipe, and feed hopper of this utility model;

[0017] Figure 4 for Figure 3Enlarged view of point A in the middle;

[0018] Figure 5 for Figure 3 Enlarged view of point B in the middle.

[0019] The attached diagram is labeled as follows: 1. Housing; 2. End cap; 3. Fixing bolt; 4. Hollow shaft; 5. Spiral blade; 6. Lower fixing plate; 7. Drive motor; 8. First bevel gear; 9. Second bevel gear; 10. Connecting pipe; 11. Inlet pipe; 12. Outlet pipe; 13. Square feed pipe; 14. Feed hopper; 15. Rectangular sliding hole; 16. Lifting plate; 17. Mounting plate; 18. Mounting shaft; 19. Unblocking shaft; 20. Unblocking rod; 21. Side plate; 22. Upper fixing plate; 23. Rotating shaft; 24. Third bevel gear; 25. Reciprocating screw; 26. Connecting plate; 27. Support leg; 28. Anti-slip pad. Detailed Implementation

[0020] The present invention will be further described below with reference to specific embodiments. However, those skilled in the art should understand that the detailed description given here with reference to the accompanying drawings is for better explanation. The structure of the present invention may exceed the limited embodiments described herein. Some equivalent alternatives or common means will not be described in detail here, but they still fall within the protection scope of this application.

[0021] Figures 1-5 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figures 1-5 The present invention will be further described below.

[0022] Specifically, a slag removal device for a biomass boiler includes a shell 1, an end cap 2 detachably mounted on one end of the shell 1, a discharge hole on the inner periphery of the shell 1, a discharge pipe sealed inside the discharge hole, a hollow shaft 4 rotatably mounted on the end of the shell 1 and the end of the end cap 2, a spiral blade 5 fixedly mounted on the outer periphery of the hollow shaft 4, one end of the hollow shaft 4 extending outside the shell 1 and equipped with a drive assembly, a feed hole on the inner periphery of the shell 1, a square feed pipe 13 sealed inside the feed hole, and a feed hopper 1 fixedly mounted at the top of the square feed pipe 13. 4. A dredging component is movably installed inside the square feed pipe 13. The dredging component includes a lifting plate 16. A rectangular sliding hole 15 is opened on the side of the square feed pipe 13. The lifting plate 16 is slidably installed in the rectangular sliding hole 15. One side of the lifting plate 16 extends into the square feed pipe 13 and is fixedly installed with a mounting plate 17. A mounting shaft 18 is fixedly installed on the side of the mounting plate 17. A dredging shaft 19 is fixedly installed on the mounting shaft 18. Multiple dredging rods 20 are evenly arranged on the outer wall of the circumference of the dredging shaft 19. A lifting unit adapted to the drive component is provided on the other side of the lifting plate 16.

[0023] With the above structure, in use, by filling the hollow shaft 4 with flowing water, the drive assembly drives the hollow shaft 4 to rotate. When the hollow shaft 4 rotates, it drives the spiral blades 5 to rotate synchronously. When the ash and slag move towards the discharge pipe, the water in the hollow shaft 4 is heated through heat transfer, thereby utilizing energy when discharging the ash and slag and avoiding energy waste. When the hollow shaft 4 rotates, it can drive the lifting plate 16 to move back and forth through the connection of the lifting unit, thereby driving the mounting plate 17, mounting shaft 18 and multiple unblocking rods 20 to move synchronously up and down, unblocking the ash and slag in the square feed pipe 13, thereby effectively preventing blockage in the square feed pipe 13.

[0024] like Figure 2 As shown, the side of the end cap 2 is provided with multiple threaded holes, and the end of the housing 1 is provided with multiple threaded grooves. Fixing bolts 3 are threaded into the multiple threaded holes and multiple threaded grooves respectively.

[0025] In this embodiment, the installation and disassembly of the end cover 2 can be achieved by setting multiple fixing bolts 3, which facilitates subsequent maintenance of the interior of the housing 1. The entire installation and disassembly process is convenient, the connection is stable, and it is easy to operate in practice.

[0026] like Figure 3 and Figure 4 As shown, both ends of the hollow shaft 4 are rotatably mounted with connecting pipes 10, and the other ends of the two connecting pipes 10 are respectively fixedly connected to an inlet pipe 11 and an outlet pipe 12.

[0027] In this embodiment, by rotatably installing connecting pipes 10 at both ends of the hollow shaft 4, interference with the water inlet pipe 11 and water outlet pipe 12 during the rotation of the hollow shaft 4 can be avoided, and the water inlet and outlet processes can be made smooth, effectively improving energy utilization.

[0028] like Figure 3 and Figure 4 As shown, the drive assembly includes a lower fixing plate 6, which is fixedly installed at the end of the housing 1. A drive motor 7 is fixedly installed at the bottom of the lower fixing plate 6. The output shaft of the drive motor 7 passes through the lower fixing plate 6 and is fixedly sleeved with a first bevel gear 8. A second bevel gear 9 is fixedly sleeved on the outer wall of the hollow shaft 4.

[0029] In this embodiment, to avoid the installation position of the drive motor 7 affecting the installation of the water inlet pipe 11, a first bevel gear 8 and a second bevel gear 9 are used to connect the output shaft of the drive motor 7 and the hollow shaft 4 through the two bevel gears. This provides driving force while avoiding interference with the installation position of the water inlet pipe 11.

[0030] like Figure 3 and Figure 5As shown, the lifting unit includes a reciprocating screw 25, an upper fixing plate 22 is fixedly installed at the end of the housing 1, a rotating shaft 23 is rotatably installed on the upper fixing plate 22, a third bevel gear 24 is fixedly sleeved at the bottom end of the rotating shaft 23, the top end of the rotating shaft 23 is fixedly connected to the bottom end of the reciprocating screw 25, a side plate 21 is rotatably installed at the top end of the reciprocating screw 25, the side of the side plate 21 is fixedly connected to the side of the square feed pipe 13, a connecting plate 26 is threadedly installed on the outer wall of the reciprocating screw 25, and the side of the connecting plate 26 is fixedly connected to the side of the lifting plate 16.

[0031] In this embodiment, the meshing action of the third bevel gear 24 and the second bevel gear 9 can drive the rotating shaft 23 and the reciprocating screw 25 to achieve rotation. Through the thread action of the reciprocating screw 25 and the connecting plate 26, the connecting plate 26 and the lifting plate 16 are driven to reciprocate and move up and down synchronously, thereby driving the mounting plate 17, the unblocking shaft 19 and the multiple unblocking rods 20 to move up and down synchronously, so as to unblock the ash and slag in the square feed pipe 13 and effectively avoid blockage.

[0032] like Figure 1 As shown, multiple support legs 27 are fixedly installed on the outer periphery of the housing 1, and anti-slip pads 28 are provided at the bottom of each support leg 27.

[0033] In this embodiment, the bottom of the housing 1 can be raised by setting multiple support legs 27, which improves the heat dissipation effect, and the anti-slip pads 28 can effectively improve the stability of the device after it is placed, and prevent the device from moving.

[0034] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A slag removal device for a biomass boiler, comprising a shell (1), characterized in that: One end of the housing (1) is detachably fitted with an end cap (2). A hollow shaft (4) is rotatably mounted on the end of the housing (1) and the end of the end cap (2). A spiral blade (5) is fixedly mounted on the outer periphery of the hollow shaft (4). One end of the hollow shaft (4) extends to the outside of the housing (1) and is provided with a drive assembly. A feed hole is opened on the inner periphery of the housing (1). A square feed pipe (13) is sealed and installed in the feed hole. A feed hopper (14) is fixedly installed at the top of the square feed pipe (13). A dredging assembly is movably installed in the square feed pipe (13). The dredging assembly includes... The lifting plate (16) has a rectangular sliding hole (15) on the side of the square feed pipe (13). The lifting plate (16) is slidably installed in the rectangular sliding hole (15). One side of the lifting plate (16) extends into the square feed pipe (13) and is fixedly provided with an installation plate (17). An installation shaft (18) is fixedly installed on the side of the installation plate (17). A dredging shaft (19) is fixedly provided on the installation shaft (18). A plurality of dredging rods (20) are evenly provided on the outer wall of the circumference of the dredging shaft (19). A lifting unit adapted to the drive assembly is provided on the other side of the lifting plate (16).

2. The slag removal device for a biomass boiler according to claim 1, characterized in that: The end cap (2) has multiple threaded holes on its side, and the housing (1) has multiple threaded grooves at its end. Fixing bolts (3) are threaded into the multiple threaded holes and the multiple threaded grooves respectively.

3. The slag removal device for a biomass boiler according to claim 1, characterized in that: Both ends of the hollow shaft (4) are rotatably mounted with connecting pipes (10), and the other ends of the two connecting pipes (10) are respectively fixedly connected with an inlet pipe (11) and an outlet pipe (12).

4. The slag removal device for a biomass boiler according to claim 1, characterized in that: The drive assembly includes a lower fixing plate (6), which is fixedly installed at the end of the housing (1). A drive motor (7) is fixedly installed at the bottom of the lower fixing plate (6). The output shaft of the drive motor (7) passes through the lower fixing plate (6) and is fixedly sleeved with a first bevel gear (8). A second bevel gear (9) is fixedly sleeved on the outer circumferential wall of the hollow shaft (4).

5. A slag removal device for a biomass boiler according to claim 4, characterized in that: The lifting unit includes a reciprocating screw (25), an upper fixing plate (22) is fixedly installed at the end of the housing (1), a rotating shaft (23) is rotatably installed on the upper fixing plate (22), a third bevel gear (24) is fixedly sleeved at the bottom end of the rotating shaft (23), the top end of the rotating shaft (23) is fixedly connected to the bottom end of the reciprocating screw (25), a side plate (21) is rotatably installed at the top end of the reciprocating screw (25), the side of the side plate (21) is fixedly connected to the side of the square feed pipe (13), a connecting plate (26) is threadedly installed on the outer wall of the reciprocating screw (25), and the side of the connecting plate (26) is fixedly connected to the side of the lifting plate (16).

6. A slag removal device for a biomass boiler according to claim 1, characterized in that: Multiple support legs (27) are fixedly installed on the outer periphery of the housing (1), and anti-slip pads (28) are provided at the bottom of each of the multiple support legs (27).

Images