A feeding mechanism for a fixed bed high temperature furnace

Abstract

The utility model discloses a kind of feeding mechanisms for fixed bed high-temperature furnace, including biomass gasification furnace, the top of the biomass gasification furnace is fixedly connected with crushing box, the top of the crushing box is fixedly connected with fuel bin, in the above scheme, when replacing crushing roller, by rotating hand wheel, by rotating shaft one drive gear one counterclockwise rotation, under the synchronous effect of synchronous belt, drive two sides gear two counterclockwise rotation, and then by rack drive four clamping blocks to the inside of limiting plate sliding, T-shaped slider provides orientation, clamping block is disconnected with the clamping of clamping groove, limiting plate can be removed, can be replaced quickly to crushing roller when crushing roller wears, guarantee fuel broken effect;Ratchet pawl is provided with torsion by torsion spring, so that ratchet pawl keeps engagement with ratchet in natural state, rotating shaft one is rotated limit, and then guaranteeing that under the condition of not operating knob, hand wheel is locked, guarantee the clamping effect of clamping block and clamping groove, and then guarantee the installation effect of limiting plate.

Description

Technical Field

[0001] This utility model relates to the field of biomass gasification furnace technology, and more specifically, to a feeding mechanism for a fixed-bed high-temperature furnace. Background Technology

[0002] The biomass gasifier uses a screw feeder to supply material to the biomass gasifier. The screw feeder is sensitive to overload and requires uniform feeding, otherwise it is easy to get clogged. In actual production, the existing biomass fuel feeding system does not isolate the fuel bin and the biomass gasifier well. Once a blockage occurs, it will cause positive pressure combustion in the biomass gasifier, causing backfire in the biomass fuel bin, resulting in serious safety hazards.

[0003] To address the aforementioned issues, patent document publication number CN219861229U discloses a feeding device for a fixed-bed biomass gasification furnace, comprising a fuel bin, a gate valve, a crushing box, an airlock box, and a feed pipe. The crushing box contains a twin-shaft crusher. The fuel bin and the crushing box are connected or disconnected via a horizontally movable gate valve. The crushing box is connected to the airlock box, and the airlock box contains an airlock device.

[0004] However, in actual use, it still has some drawbacks. For example, by setting up an airlock, the device prevents combustible gas in the biomass gasifier from leaking into the environment and prevents the biomass fuel in the gasifier from coming into contact with the outside air, thus avoiding spontaneous combustion. This ensures the operational stability of the biomass gasifier and improves its safety. The device also has a twin-shaft crusher to crush large fuel particles. With the use of the device, the crushing rollers will be worn to a certain extent after repeated use. Due to the obstruction of the crushing box, it is inconvenient to replace the crushing rollers, which affects the effect of crushing the fuel. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a feeding mechanism for a fixed bed high-temperature furnace to solve the problem that the crushing roller is inconvenient to replace after wear and affects the fuel crushing effect.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a feeding mechanism for a fixed-bed high-temperature furnace, comprising a biomass gasifier, a crushing box fixedly connected to the top of the biomass gasifier, a fuel bin fixedly connected to the top of the crushing box, and the feeding mechanism for the fixed-bed high-temperature furnace further comprising...

[0007] A limiting plate is installed on one side of the crushing box, and a handwheel is provided on one side of the limiting plate;

[0008] A rotating shaft is fixedly connected inside the handwheel. A gear is fixedly connected to the surface of the rotating shaft. A timing belt meshes with the outer edge of the gear. A gear is meshed with the tooth surface at the other end of the timing belt. A rotating shaft is rotatably connected inside the gear.

[0009] A rack meshes with the outer edge of gear two, a T-shaped slider is fixedly connected to one side of the rack, and a locking block is fixedly connected to one end of the rack;

[0010] The slot is formed on the inner wall of the crushing chamber.

[0011] The surface of the first rotating shaft is rotatably connected to the inner wall of the limiting plate, both ends of the second rotating shaft are fixedly connected to the inner wall of the limiting plate, the surface of the T-shaped slider is slidably connected to the T-shaped groove of the inner wall of the limiting plate, the surface of the locking block is slidably connected to the inner wall of the limiting plate, and the inner wall of the locking groove is engaged with the surface of the locking block.

[0012] The feeding mechanism for the fixed-bed high-temperature furnace also includes a sealing gasket, which is fixedly connected to one side of the limiting plate.

[0013] The feeding mechanism for the fixed-bed high-temperature furnace also includes a locking component, which is located inside the limiting plate.

[0014] The locking assembly includes a knob, a rotating shaft, a pawl, a torsion spring, and a ratchet. The knob is rotatably connected to one side of the limiting plate. The rotating shaft is fixedly connected to one side of the knob. The pawl is fixedly connected to the other end of the rotating shaft. The torsion spring is sleeved on the outer surface of the rotating shaft. The two ends of the torsion spring are fixedly connected to one side of the pawl and the inner wall of the limiting plate, respectively. The ratchet is fixedly connected to the outer surface of the rotating shaft, and the outer edge of the ratchet meshes with the toothed surface of the pawl end.

[0015] The beneficial effects of the above-mentioned technical solution of this utility model are as follows:

[0016] In the above solution, when replacing the crushing roller, the handwheel is turned, which drives the first gear to rotate counterclockwise through the first shaft. Under the synchronous action of the timing belt, the second gear on both sides rotates counterclockwise, which in turn drives the four locking blocks to slide into the limit plate through the rack. The T-shaped slider provides guidance, and the locking blocks disengage from the locking slots, so the limit plate can be removed. This allows for quick replacement of the crushing roller when it is worn, ensuring the fuel crushing effect.

[0017] The torsion spring provides torque to the pawl, allowing it to maintain engagement with the ratchet in its natural state. This restricts the rotation of the shaft, ensuring that the handwheel is locked without operating the knob. This also ensures the engagement of the locking block with the slot, thus guaranteeing the installation of the limit plate. Attached Figure Description

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

[0019] Figure 2 This is a schematic diagram of the external structure of the limiting plate of this utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the limiting plate of this utility model;

[0021] Figure 4 This is a schematic diagram of the inner wall structure of the crushing box of this utility model;

[0022] Figure 5 This is a schematic diagram of the locking component structure of this utility model.

[0023] [Figure Labels]

[0024] 1. Biomass gasifier; 2. Crushing box; 3. Fuel bin; 4. Limiting plate; 5. Handwheel; 6. Shaft 1; 7. Gear 1; 8. Synchronous belt; 9. Gear 2; 10. Shaft 2; 11. Rack; 12. T-slider; 13. Locking block; 14. Locking groove; 15. Sealing gasket; 16. Locking assembly; 161. Knob; 162. Shaft 3; 163. Pawl; 164. Torsion spring; 165. Ratchet. Detailed Implementation

[0025] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0026] As attached Figure 1 To be continued Figure 5 An embodiment of this utility model provides a feeding mechanism for a fixed-bed high-temperature furnace, including a biomass gasifier 1. A crushing box 2 is fixedly connected to the top of the biomass gasifier 1, and a fuel bin 3 is fixedly connected to the top of the crushing box 2. The feeding mechanism for the fixed-bed high-temperature furnace also includes...

[0027] Limiting plate 4 is installed on one side of crushing box 2. A handwheel 5 is provided on one side of the limiting plate 4. The limiting plate 4 is used to limit the crushing roller. The crushing roller can be replaced by removing the limiting plate 4.

[0028] A rotating shaft 6 is fixedly connected inside the handwheel 5. A gear 7 is fixedly connected to the surface of the rotating shaft 6. A synchronous belt 8 is meshed on the outer edge of the gear 7. A gear 9 is meshed on the tooth surface of the other end of the synchronous belt 8. A rotating shaft 10 is rotatably connected inside the gear 9. The gear 9 on both sides is driven to rotate synchronously with the gear 7 through the synchronous belt 8.

[0029] Rack 11 meshes with the outer edge of gear 2 9. A T-shaped slider 12 is fixedly connected to one side of rack 11, and a locking block 13 is fixedly connected to one end of rack 11. Gear 2 9 is relatively thick and can mesh with both synchronous belt 8 and rack 11 at the same time.

[0030] The slot 14 is formed on the inner wall of the crushing box 2.

[0031] Among them, such as Figures 2 to 4 The surface of the first rotating shaft 6 is rotatably connected to the inner wall of the limiting plate 4. Both ends of the second rotating shaft 10 are fixedly connected to the inner wall of the limiting plate 4. The surface of the T-shaped slider 12 is slidably connected to the T-shaped groove of the inner wall of the limiting plate 4. The surface of the locking block 13 is slidably connected to the inner wall of the limiting plate 4. The inner wall of the locking groove 14 is engaged with the surface of the locking block 13. The sliding of the T-shaped slider 12 provides guidance and limitation for the rack 11.

[0032] Among them, such as Figure 3 The feeding mechanism for the fixed bed high-temperature furnace also includes a sealing gasket 15, which is fixedly connected to one side of the limiting plate 4. The sealing gasket 15 can provide a sealing function when the limiting plate 4 is installed.

[0033] Among them, such as Figure 3 The feeding mechanism for the fixed bed high-temperature furnace also includes a locking component 16, which is disposed inside the limiting plate 4.

[0034] Among them, such as Figure 5 The locking assembly 16 includes a knob 161, a pivot 162, a pawl 163, a torsion spring 164, and a ratchet 165. The knob 161 is rotatably connected to one side of the limiting plate 4. The pivot 162 is fixedly connected to one side of the knob 161. The pawl 163 is fixedly connected to the other end of the pivot 162. The torsion spring 164 is sleeved on the outer surface of the pivot 162. The two ends of the torsion spring 164 are fixedly connected to one side of the pawl 163 and the inner wall of the limiting plate 4, respectively. The ratchet 165 is fixedly connected to the outer surface of the pivot 162. The outer edge of the ratchet 165 meshes with the toothed surface of the end of the pawl 163. The torsion spring 164 provides torque to the pawl 163, so that it remains engaged with the ratchet 165 in its natural state.

[0035] The working process of this utility model is as follows: When replacing the crushing roller, first turn the knob 161, which drives the pawl 163 to rotate through the rotating shaft 162 and tightens the torsion spring 164. The pawl 163 disengages from the ratchet 165, releasing the rotation restriction on the rotating shaft 6. At this time, turn the handwheel 5 counterclockwise, which drives the gear 7 to rotate counterclockwise through the rotating shaft 6. Under the synchronous action of the synchronous belt 8, the gears 9 on both sides rotate counterclockwise, which in turn drives the four locking blocks 13 to slide into the limiting plate 4 through the rack 11. The T-shaped slider 12 provides guidance, and the locking blocks 13 disengage from the locking groove 14. The limiting plate 4 can then be removed to replace the crushing roller.

[0036] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0037] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0038] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A feeding mechanism for a fixed-bed high-temperature furnace, comprising a biomass gasifier (1), wherein a crushing box (2) is fixedly connected to the top of the biomass gasifier (1), and a fuel bin (3) is fixedly connected to the top of the crushing box (2), characterized in that, The feeding mechanism for the fixed-bed high-temperature furnace also includes A limiting plate (4) is installed on one side of the crushing box (2), and a handwheel (5) is provided on one side of the limiting plate (4). Rotary shaft one (6), the rotary shaft one (6) is fixedly connected to the inside of the handwheel (5), the surface of the rotary shaft one (6) is fixedly connected to gear one (7), the outer edge of the gear one (7) is meshed with a synchronous belt (8), the tooth surface of the other end of the synchronous belt (8) is meshed with gear two (9), and the inside of gear two (9) is rotatably connected to rotary shaft two (10). A rack (11) meshes with the outer edge of gear two (9), a T-shaped slider (12) is fixedly connected to one side of the rack (11), and a locking block (13) is fixedly connected to one end of the rack (11). The slot (14) is formed on the inner wall of the crushing box (2).

2. The feeding mechanism for a fixed-bed high-temperature furnace according to claim 1, characterized in that, The surface of the first rotating shaft (6) is rotatably connected to the inner wall of the limiting plate (4), both ends of the second rotating shaft (10) are fixedly connected to the inner wall of the limiting plate (4), the surface of the T-shaped slider (12) is slidably connected to the T-shaped groove of the inner wall of the limiting plate (4), the surface of the card block (13) is slidably connected to the inner wall of the limiting plate (4), and the inner wall of the card groove (14) is engaged with the surface of the card block (13).

3. The feeding mechanism for a fixed-bed high-temperature furnace according to claim 1, characterized in that, It also includes a sealing gasket (15), which is fixedly connected to one side of the limiting plate (4).

4. The feeding mechanism for a fixed-bed high-temperature furnace according to claim 1, characterized in that, It also includes a locking component (16) disposed inside the limiting plate (4).

5. The feeding mechanism for a fixed-bed high-temperature furnace according to claim 4, characterized in that, The locking assembly (16) includes a knob (161), a rotating shaft (162), a pawl (163), a torsion spring (164), and a ratchet (165). The knob (161) is rotatably connected to one side of the limiting plate (4). The rotating shaft (162) is fixedly connected to one side of the knob (161). The pawl (163) is fixedly connected to the other end of the rotating shaft (162). The torsion spring (164) is sleeved on the outer surface of the rotating shaft (162). The two ends of the torsion spring (164) are fixedly connected to one side of the pawl (163) and the inner wall of the limiting plate (4), respectively. The ratchet (165) is fixedly connected to the outer surface of the rotating shaft (6). The outer edge of the ratchet (165) meshes with the tooth surface at the end of the pawl (163).

Images