Feeding device for large-capacity biomass bulk material

Abstract

The utility model discloses a feeding device for large-capacity biomass bulk materials, which comprises a partition plate (1) and is characterized in that a stock bin body (2) is arranged on the partition plate (1), a feeding port (3) is arranged at the upper end of the stock bin body (2), a transition material pipe (4) is arranged at the lower end of the stock bin body (2), and a first feeding assembly (5) is arranged in the stock bin body (2). A supporting plate (6) is arranged below the partition plate (1), a second feeding assembly (7) is arranged on the supporting plate (6), and a feeding port of the second feeding assembly (7) is connected with the discharging end of the first feeding assembly (5) through a transition material pipe (4). According to the utility model, the material stirring structure is arranged at the feeding end of the stock bin body, and materials poured into the stock bin body are uniformly dispersed, so that the feeding uniformity and the feeding continuity are realized.

Description

Technical Field

[0001] This utility model relates to the field of bioenergy power generation technology, and in particular to a feeding device for large-capacity bulk biomass. Background Technology

[0002] Biomass power generation is a renewable energy technology that uses organic materials as fuel to produce electricity through combustion or conversion processes. Existing biomass feeding devices, such as the Chinese utility model patent with publication number CN202532519U, disclose a biomass feeder device, including a silo, a primary screw feeder, and a secondary cantilever screw feeder. The primary screw feeder is located at the bottom of the silo, and its conveying end is connected to a discharge port. An electric shut-off gate and an expansion joint are sequentially installed in the channel from the discharge port to the secondary cantilever screw feeder. The screw blades of the primary screw feeder have a gradually increasing pitch in the conveying direction. The conveying section of the secondary cantilever screw feeder is suspended, and the diameter of its central shaft gradually decreases in the conveying direction, while the screw blade pitch gradually increases. The end of the secondary cantilever screw feeder is connected to a feed plug area, which is surrounded by a sealed air chamber. The sealed air chamber is connected to the feed plug area through air vents, and the feed port is directly connected to the boiler feed port. When discharging material from the hopper, the material will accumulate. The auger needs to be used to gradually reduce the height of the material accumulation, which may cause uneven feeding and material caking. Utility Model Content

[0003] The purpose of this invention is to provide a feeding device for large-capacity bulk biomass. This invention achieves uniform and continuous feeding by setting a feeding structure at the feed end of the hopper to evenly distribute the material poured into the hopper.

[0004] The technical solution of this utility model is as follows: A feeding device for large-capacity bulk biomass includes a partition plate, a hopper body on the partition plate, an inlet at the upper end of the hopper body, a transition pipe at the lower end of the hopper body, and a first feeding component inside the hopper body; a support plate is provided below the partition plate, and a second feeding component is provided on the support plate; the inlet of the second feeding component is connected to the outlet of the first feeding component via the transition pipe; the outlet of the second feeding component is provided with a feeding chute connected to a boiler; a material-feeding fixing plate is provided at the inlet of the hopper body, a horizontal plate is provided on the surface of the material-feeding fixing plate, a movable cylinder is provided at the upper end of the horizontal plate, and a movable seat is provided on the front side of the horizontal plate via a sliding rail; the extended end of the movable cylinder is connected to the movable seat; a material-feeding component for feeding material inside the hopper body is provided on the movable seat.

[0005] In the aforementioned feeding device for large-capacity bulk biomass, the hopper body is a trapezoidal structure with a smaller top and a larger bottom.

[0006] In the aforementioned feeding device for large-capacity bulk biomass, the feeding assembly includes a swing cylinder mounted on a movable seat; the movable seat has a rotatable V-shaped component via a shaft, the lower end of the V-shaped component has a actuating tooth plate, and the extended end of the swing cylinder is hinged to the upper end of the V-shaped component.

[0007] In the aforementioned feeding device for large-capacity bulk biomass, the feeding chute is equipped with a pneumatic switching valve to prevent flue gas from backflowing.

[0008] In the aforementioned feeding device for large-capacity bulk biomass, the first feeding component consists of multiple first augers installed inside the silo, with the ends of the multiple first augers connected by a synchronous belt; one end of one of the first augers is connected to a first drive motor installed on a partition plate.

[0009] In the aforementioned feeding device for large-capacity bulk biomass, the second feeding assembly includes a second drive motor and a feeding bin mounted on a support plate. The extended end of the second drive motor is connected to a second auger mounted inside the feeding bin. The discharge end of the transition pipe is connected to the inlet end of the feeding bin.

[0010] In the aforementioned feeding device for large-capacity bulk biomass, a weight sensor is installed on the feeding hopper.

[0011] Compared with the prior art, the present invention has the following advantages:

[0012] 1. In this utility model, the material is poured into the hopper and then fed through a two-stage auger conveyor structure. When the material is first poured into the hopper, it will be in a piled-up state. The moving cylinder drives the moving seat to move back and forth in the hopper. The material feeding component evenly disperses and spreads the piled-up material, so that the first feeding component can feed smoothly, achieving uniformity and continuity of feeding, and improving feeding efficiency.

[0013] 2. The material feeding component can swing the toothed plate at a certain angle through the swing cylinder to further disperse the material evenly, which helps the first feeding component to feed the material better.

[0014] 3. The feed chute is equipped with a pneumatic switch valve for preventing flue gas backflow. Flue gas is generated during combustion in the boiler. The pneumatic switch valve is installed to prevent high-temperature flue gas from backflowing into the boiler and to close it in time to ensure equipment safety. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the feeding assembly;

[0017] Figure 3 This is a schematic diagram of the first feeding assembly;

[0018] Figure 4 This is a schematic diagram of the second feeding component.

[0019] The markings in the attached diagram are as follows: 1-partition, 2-hopper body, 3-feed inlet, 4-transition material pipe, 5-first feeding assembly, 6-support plate, 7-second feeding assembly, 8-material feeding fixing plate, 9-horizontal plate, 10-moving cylinder, 11-moving seat, 12-material feeding assembly, 13-pneumatic switch valve, 14-feed chute, 121-swing cylinder, 122-V-shaped component, 123-paddle toothed plate, 51-first drive motor, 52-first auger, 71-second drive motor, 72-feeding hopper, 73-second auger, 74-weight sensor. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0021] Example: A feeding device for large-volume bulk biomass, including a partition 1, as shown in the attached diagram. Figure 1As shown, a hopper body 2 is installed on the partition 1. The hopper body 2 is a trapezoidal structure, smaller at the top and larger at the bottom. Considering the irregularity of the bulk biomass and the poor flowability of the biomass when it is wet, it is easy for materials to stack, bridge, and become bridging within the large-capacity hopper. Therefore, the hopper body is designed as a trapezoidal structure. The upper end of the hopper body 2 has a feed inlet 3, through which the material enters the hopper body. The lower end of the hopper body 2 has a transition pipe 4, and a first feeding assembly 5 is installed inside the hopper body 2. A support plate 6 is installed below the partition 1, and a second feeding assembly 7 is installed on the support plate 6. The feed inlet of the second feeding assembly 7 is connected to the discharge end of the first feeding assembly 5 via the transition pipe 4. The transition pipe allows for smoother material flow from the first feeding assembly to the second feeding assembly. The discharge end of the second feeding assembly 7... A feed chute 14 connected to the boiler is installed at the material end. The feed chute 14 contains a pneumatic switch valve 13 for preventing backflow of flue gas. Flue gas is generated during combustion in the boiler. The pneumatic switch valve prevents the high-temperature flue gas from backflowing. Closing the pneumatic switch valve promptly when flue gas is generated during boiler combustion ensures equipment safety. A material-dispensing fixing plate 8 is installed at the feed inlet of the hopper 2. A horizontal plate 9 is provided on the surface of the material-dispensing fixing plate 8. A moving cylinder 10 is installed at the upper end of the horizontal plate 9. A moving seat 11 is installed on the front side of the horizontal plate 9 via a sliding rail. The extended end of the moving cylinder 10 is connected to the moving seat 11. A material-dispensing component 12 for dispensing material into the hopper 2 is installed on the moving seat 11. The moving cylinder drives the moving seat to move back and forth on the horizontal plate, thus dispersing the material in the hopper. The material-dispensing component 12 includes a swing cylinder 121 mounted on the moving seat 11; as shown in the attached figure. Figure 2 As shown, a rotatable V-shaped component 122 is mounted on the movable seat 11 via a shaft. The lower end of the V-shaped component 122 has a actuating toothed plate 123, and the extended end of the swing cylinder 121 is hinged to the upper end of the V-shaped component 122. The material feeding assembly can swing the actuating toothed plate at a certain angle through the swing cylinder, further and evenly dispersing the material, which helps the first feeding assembly to feed better. A weight sensor 74 is provided on the feeding bin 72, which can measure the biomass consumption. The weight sensor 74 is commercially available.

[0022] The first feeding assembly 5 consists of multiple first augers 52 disposed within the hopper body 2, with the ends of the multiple first augers 52 connected by a synchronous belt; one end of one of the first augers 52 is connected to a first drive motor 51 disposed on a partition plate 1. Multiple first augers are disposed within the hopper body, and the first drive motor drives the rotation of the multiple first augers via belt transmission. The second feeding assembly 7 includes a second drive motor 71 disposed on a support plate 6 and a feeding bin 72, as shown in the attached figure. Figure 4As shown, the extended end of the second drive motor 71 is connected to the second auger 73 located inside the feeding bin 72; the discharge end of the transition material pipe 4 is connected to the inlet end of the feeding bin 72; both feeding components realize the material conveying and feeding through the auger structure, so that the bulk material is discharged in an orderly manner and it is not easy to form bridging or blockage.

[0023] The working principle of this utility model is as follows: the material is poured into the hopper and then fed through a two-stage auger conveyor structure. When the material is first poured into the hopper, it will be in a state of accumulation. The moving cylinder drives the moving seat to move back and forth in the hopper. The material feeding component will evenly spread and flatten the accumulated material, so that the first feeding component can feed smoothly, achieve uniform and continuous feeding, and improve feeding efficiency.

Claims

1. A feeding device for large-volume bulk biomass, comprising a partition (1), characterized in that: The partition (1) is provided with a hopper body (2), the upper end of the hopper body (2) has a feed inlet (3), the lower end of the hopper body (2) has a transition pipe (4), and the hopper body (2) is provided with a first feeding assembly (5); a support plate (6) is provided below the partition (1), and a second feeding assembly (7) is provided on the support plate (6). The feed inlet of the second feeding assembly (7) is connected to the discharge end of the first feeding assembly (5) through the transition pipe (4); the discharge of the second feeding assembly (7) is... The end is provided with a feed chute (14) connected to the boiler; the feed inlet of the silo body (2) is provided with a feeding fixing plate (8), the surface of the feeding fixing plate (8) is provided with a horizontal plate (9), the upper end of the horizontal plate (9) is provided with a moving cylinder (10), the front side of the horizontal plate (9) is provided with a moving seat (11) via a sliding rail, the extended end of the moving cylinder (10) is connected to the moving seat (11); the moving seat (11) is provided with a feeding assembly (12) for feeding material into the silo body (2).

2. The feeding device for large-capacity bulk biomass as described in claim 1, characterized in that: The silo body (2) is a trapezoidal structure with a smaller top and a larger bottom.

3. The feeding device for large-capacity bulk biomass as described in claim 1, characterized in that: The feeding assembly (12) includes a swing cylinder (121) mounted on a movable seat (11); the movable seat (11) is provided with a rotatable V-shaped part (122) via a shaft, the lower end of the V-shaped part (122) has a moving tooth plate (123), and the extended end of the swing cylinder (121) is hinged to the upper end of the V-shaped part (122).

4. The feeding device for large-capacity bulk biomass as described in claim 1, characterized in that: The feed chute (14) is equipped with a pneumatic switch valve (13) to prevent flue gas from backflow.

5. The feeding device for large-capacity bulk biomass as described in claim 1, characterized in that: The first feeding assembly (5) consists of multiple first augers (52) installed in the hopper body (2), with the ends of the multiple first augers (52) connected by a synchronous belt; one of the first augers (52) is connected to a first drive motor (51) installed on the partition plate (1).

6. The feeding device for large-capacity bulk biomass as described in claim 1, characterized in that: The second feeding assembly (7) includes a second drive motor (71) and a feeding bin (72) mounted on a support plate (6). The extended end of the second drive motor (71) is connected to a second auger (73) mounted inside the feeding bin (72). The discharge end of the transition pipe (4) is connected to the feed end of the feeding bin (72).

7. The feeding device for large-capacity bulk biomass as described in claim 6, characterized in that: A weight sensor (74) is installed on the feeding bin (72).

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