Feeding device for combustion and gasification of biomass fuel
By designing the feeding cylinder, umbrella cover and smoke exhaust pipe structure in the gasifier, the problem of thick smoke emission is solved and a safe and efficient feeding process is achieved.
Patent Information
- Application Number
- CN202422861907.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-11-22
AI Technical Summary
When the existing gasifier is opened to add fuel when combustion is incomplete, thick smoke is easily emitted, affecting operational safety.
A feeding device including a feeding barrel, an umbrella cover and a smoke exhaust pipe is designed. A smoke exhaust groove and an inner cavity are provided under the umbrella cover. The smoke exhaust pipe is connected to the inner cavity. The umbrella cover cooperates with the feeding barrel to realize the discharge of thick smoke. The feeding barrel is closed after the feeding is completed to prevent the discharge of thick smoke.
It effectively prevents thick smoke from being discharged from the charging port, improves the safety and efficiency of the charging operation, and ensures the smooth progress of the charging process.
Smart Images
Figure CN223388600U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of feeding devices, in particular to a feeding device for combustion and gasification of biomass fuel. Background Art
[0002] Biomass fuel refers to the burning of biomass materials as fuel, generally mainly agricultural and forestry waste (such as straw, sawdust, sugarcane bagasse, rice chaff, etc.).
[0003] The existing gasification furnace includes a furnace body and a charging port provided on the top wall of the furnace body. A furnace cover is provided on the top of the furnace body to close the charging port. However, in actual use, when the operator opens the furnace cover to charge the fuel under conditions of incomplete combustion, thick smoke is likely to emerge from the charging port, affecting the charging operation and posing a safety hazard.
[0004] Therefore, it is necessary to propose a feeding device for combustion and gasification of biomass fuel to solve the above problems. Utility Model Content
[0005] The purpose of the present utility model is to provide a feeding device for combustion and gasification of biomass fuel to solve the problems raised in the above background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a feeding device for biomass fuel combustion and gasification, comprising a furnace body, a circular groove is provided through the top of the furnace body, a feeding cylinder is fixedly connected to the inside of the circular groove, and the feeding cylinder extends to the inside of the furnace body, an umbrella cover is provided inside the furnace body, the umbrella cover is located below the feeding cylinder, the umbrella cover cooperates with the feeding cylinder, an inner cavity is provided inside the umbrella cover, a smoke exhaust groove is provided on the lower surface of the umbrella cover, the smoke exhaust groove is connected to the inner cavity, a smoke exhaust pipe is fixedly connected to the top end of the umbrella cover, the smoke exhaust pipe is connected to the inner cavity, and the smoke exhaust pipe passes through the feeding cylinder and extends to the outside of the furnace body.
[0007] Preferably, the smoke exhaust trough is provided in plurality.
[0008] Preferably, a support plate is fixedly connected to the outer wall of the smoke exhaust pipe, the support plate is located above the furnace body, an electric push rod is fixedly connected to the upper surface of the top of the furnace body, and the support plate is fixedly connected to the telescopic end of the electric push rod.
[0009] Preferably, a rotating sleeve is rotatably provided on the lower half of the smoke exhaust pipe, and a dispersion strip is fixedly connected to the bottom end of the outer wall of the rotating sleeve.
[0010] Preferably, a stirring rod is fixedly connected to the outer wall of the rotating sleeve, and the stirring rod is located above the dispersion strip.
[0011] Preferably, the top end of the rotating sleeve is fixedly connected to a first gear, the lower surface of the support plate is fixedly connected to a motor, the driving shaft of the motor is fixedly connected to a second gear, and the first gear is meshed with the second gear.
[0012] Preferably, an annular groove is provided on the inner wall of the rotating sleeve, a rotating ring is rotatably connected inside the annular groove, and the rotating ring is fixedly connected to the smoke exhaust pipe.
[0013] The technical effects and advantages of this utility model are:
[0014] 1. The utility model is provided with a feeding barrel, an umbrella cover and a smoke exhaust pipe. When feeding, thick smoke can be discharged from the smoke exhaust groove, the inner cavity and the smoke exhaust pipe. At the same time, after the feeding is completed, the umbrella cover can close the feeding barrel, thereby preventing thick smoke from being discharged from the feeding barrel and improving the use efficiency of the feeding device.
[0015] 2. The inclined structure at the top of the umbrella cover facilitates the sliding of biomass fuel and improves the feeding efficiency; and the concave structure at the bottom of the umbrella cover has a gathering effect, making the smoke more concentrated and less likely to enter the feeding barrel, and then discharged through the smoke exhaust groove, inner cavity and smoke exhaust pipe;
[0016] 3. When adding materials, the dispersion bar moves the biomass fuel so that it is evenly distributed on the upper surface of the umbrella cover, thereby improving the uniformity of the feeding. At the same time, the rotation of the dispersion bar and the stirring rod can also prevent blockage and improve the feeding effect.
[0017] 4. The electric push rod drives the support plate to move up and down, so that the dispersion bar and the stirring rod can move up and down while rotating, further preventing blockage. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of the structure of the feeding device for combustion and gasification of biomass fuel in the utility model.
[0019] Figure 2 For this utility model Figure 1 A magnified schematic diagram of the structure in the middle.
[0020] Figure 3 This is a schematic cross-sectional view of the feeding device for combustion and gasification of biomass fuels according to the present invention.
[0021] Figure 4 For this utility model Figure 3 Enlarged schematic diagram of the structure at point B in the middle.
[0022] Figure 5 For this utility model Figure 3 Enlarged schematic diagram of the structure at point C in the middle.
[0023] In the figure: 1. furnace body; 2. circular groove; 3. feeding barrel; 4. umbrella cover; 5. exhaust groove; 6. exhaust pipe; 7. rotating sleeve; 8. dispersion strip; 9. stirring rod; 10. support plate; 11. electric push rod; 12. first gear; 13. second gear; 14. motor; 15. inner cavity; 16. ring groove; 17. rotating ring. DETAILED DESCRIPTION
[0024] The utility model provides Figures 1 to 5 The device for feeding biomass fuel combustion and gasification shown in the figure comprises a furnace body 1 with a circular groove 2 extending through the top of the furnace body 1. A feeding cylinder 3 is fixedly connected to the interior of the circular groove 2 and extends into the interior of the furnace body 1. Chopped biomass fuel (straw, sawdust, bagasse, rice chaff, etc.) can be added into the furnace body 1 through the feeding cylinder 3 for combustion and gasification.
[0025] The furnace body 1 is provided with an umbrella cover 4, which is located below the feeding barrel 3 and cooperates with the feeding barrel 3. An inner cavity 15 is defined within the umbrella cover 4, and a plurality of smoke exhaust slots 5 are defined on the lower surface of the umbrella cover 4. The smoke exhaust slots 5 are connected to the inner cavity 15. A smoke exhaust pipe 6 is fixedly connected to the top of the umbrella cover 4, which is connected to the inner cavity 15 and passes through the feeding barrel 3 and extends to the outside of the furnace body 1.
[0026] The smoke exhaust pipe 6 has a certain height and can cooperate with the inner cavity 15 and the smoke exhaust groove 5 to form a chimney structure to discharge the thick smoke generated during the combustion process; at the same time, the top of the smoke exhaust pipe 6 can also be connected to the centralized air treatment pipeline to purify the thick smoke. An electric control valve and other structures can also be set on the smoke exhaust pipe 6 to control whether smoke exhaust is needed, thereby improving the flexibility of use.
[0027] At the same time, the inclined structure at the top of the umbrella cover 4 facilitates the sliding of biomass fuel and improves the feeding efficiency; and the concave structure at the bottom of the umbrella cover 4 has a gathering effect, so that the thick smoke can be more concentrated and not easily enter the feeding barrel 3, and then discharged through the smoke exhaust groove 5, the inner cavity 15 and the smoke exhaust pipe 6.
[0028] A support plate 10 is fixedly connected to the outer wall of the exhaust pipe 6. The support plate 10 is located above the furnace body 1. An electric push rod 11 is fixedly connected to the upper surface of the top of the furnace body 1. The support plate 10 is fixedly connected to the telescopic end of the electric push rod 11. The electric push rod 11 cooperates with the support plate 10 to control the vertical movement of the exhaust pipe 6 and the umbrella cover 4.
[0029] When adding fuel, the smoke exhaust pipe 6 and the umbrella cover 4 are controlled to move downward, and a feeding channel is formed between the bottom end of the feeding barrel 3 and the umbrella cover 4. The operator pours the biomass fuel into the interior of the feeding barrel 3, and the biomass fuel slides down the inclined surface of the top end of the umbrella cover 4 to the interior of the furnace body 1; at the same time, the thick smoke is discharged from the smoke exhaust groove 5, the inner cavity 15 and the smoke exhaust pipe 6, thereby avoiding the thick smoke from being discharged from the feeding barrel 3, and improving the use efficiency of the feeding device.
[0030] After the feeding is completed, the smoke exhaust pipe 6 and the umbrella cover 4 are controlled to reset, and the umbrella cover 4 abuts against the bottom end of the feeding cylinder 3, so that the feeding cylinder 3 is closed, and the thick smoke can also be discharged from the smoke exhaust groove 5, the inner cavity 15 and the smoke exhaust pipe 6.
[0031] By providing structures such as the feeding barrel 3, the umbrella cover 4 and the smoke exhaust pipe 6, thick smoke can be discharged from the smoke exhaust groove 5, the inner cavity 15 and the smoke exhaust pipe 6 during feeding. At the same time, after the feeding is completed, the umbrella cover 4 can close the feeding barrel 3, thereby preventing thick smoke from being discharged from the feeding barrel 3, thereby improving the utilization efficiency of the feeding device.
[0032] In order to improve the feeding efficiency, the lower half of the exhaust pipe 6 is rotatably provided with a rotating sleeve 7, and an annular groove 16 is provided on the inner wall of the rotating sleeve 7. The inner part of the annular groove 16 is rotatably connected to a rotating ring 17, and the rotating ring 17 is fixedly connected to the exhaust pipe 6. The annular groove 16 and the rotating ring 17 are provided so that the exhaust pipe 6 and the rotating sleeve 7 can move up and down synchronously.
[0033] A dispersion strip 8 is fixedly connected to the bottom end of the outer wall of the rotating sleeve 7 , and a stirring rod 9 is fixedly connected to the outer wall of the rotating sleeve 7 , and the stirring rod 9 is located above the dispersion strip 8 .
[0034] The top of the rotating sleeve 7 is fixedly connected to a first gear 12 , the lower surface of the support plate 10 is fixedly connected to a motor 14 , a second gear 13 is fixedly connected to the driving shaft of the motor 14 , and the first gear 12 is meshed with the second gear 13 .
[0035] When adding materials, the motor 14 is started, and the motor 14 drives the second gear 13 to rotate. Since the first gear 12 is meshed with the second gear 13, the first gear 12 drives the rotating sleeve 7 to rotate, and the dispersion bar 8 and the stirring rod 9 rotate synchronously. The operator pours the biomass fuel into the interior of the feeding barrel 3, and the dispersion bar 8 stirs the biomass fuel so that it is evenly distributed on the upper surface of the umbrella cover 4, thereby improving the uniformity of the feeding; at the same time, the rotation of the dispersion bar 8 and the stirring rod 9 can also prevent blockage and improve the feeding effect, and the electric push rod 11 can also drive the support plate 10 to move up and down, so that the dispersion bar 8 and the stirring rod 9 can also move up and down while rotating, further preventing blockage.
Claims
1. A feeding device for combustion and gasification of biomass fuel, comprising a furnace body (1), characterized in that: A circular groove (2) is provided through the top of the furnace body (1), a feeding cylinder (3) is fixedly connected to the inside of the circular groove (2), and the feeding cylinder (3) extends to the inside of the furnace body (1), an umbrella cover (4) is provided inside the furnace body (1), the umbrella cover (4) is located below the feeding cylinder (3), the umbrella cover (4) cooperates with the feeding cylinder (3), an inner cavity (15) is provided inside the umbrella cover (4), a smoke exhaust groove (5) is provided on the lower surface of the umbrella cover (4), the smoke exhaust groove (5) is communicated with the inner cavity (15), a smoke exhaust pipe (6) is fixedly connected to the top of the umbrella cover (4), the smoke exhaust pipe (6) is communicated with the inner cavity (15), and the smoke exhaust pipe (6) passes through the feeding cylinder (3) and extends to the outside of the furnace body (1).
2. The feeding device for combustion and gasification of biomass fuel according to claim 1, characterized in that: The smoke exhaust trough (5) is provided in plurality.
3. The feeding device for biomass fuel combustion and gasification according to claim 1, characterized in that: A support plate (10) is fixedly connected to the outer wall of the smoke exhaust pipe (6), and the support plate (10) is located above the furnace body (1). An electric push rod (11) is fixedly connected to the upper surface of the top of the furnace body (1), and the support plate (10) is fixedly connected to the telescopic end of the electric push rod (11).
4. The feeding device for combustion and gasification of biomass fuel according to claim 3, characterized in that: The lower half of the smoke exhaust pipe (6) is rotatably provided with a rotating sleeve (7), and the bottom end of the outer wall of the rotating sleeve (7) is fixedly connected with a dispersion strip (8).
5. The feeding device for combustion and gasification of biomass fuel according to claim 4, characterized in that: A stirring rod (9) is fixedly connected to the outer wall of the rotating sleeve (7), and the stirring rod (9) is located above the dispersion bar (8).
6. The feeding device for combustion and gasification of biomass fuel according to claim 5, characterized in that: The top end of the rotating sleeve (7) is fixedly connected to a first gear (12), the lower surface of the support plate (10) is fixedly connected to a motor (14), a second gear (13) is fixedly connected to the driving shaft of the motor (14), and the first gear (12) is meshed with the second gear (13).
7. The feeding device for biomass fuel combustion and gasification according to claim 4, characterized in that: An annular groove (16) is provided on the inner wall of the rotating sleeve (7), and a rotating ring (17) is rotatably connected inside the annular groove (16), and the rotating ring (17) is fixedly connected to the smoke exhaust pipe (6).