Device for homogenizing and screening crushed biomass fuel

Abstract

A biomass fuel after crushing homogenizing and screening device comprises a material shaking base, the top of the material shaking base is correspondingly connected with a plurality of supporting bases through a plurality of sets of elastic supporting pieces, a screening groove is formed in the top of each supporting base, a discharging opening, a screen and a top cover are arranged on each screening groove, and a slag discharging opening is formed in each top cover. The bottom of the screening groove is connected with an eccentric motor through a first fixing base, a feeding base is arranged below the screening groove, a batching box is arranged on the feeding base and matched with the discharging end of the auger conveying structure, and the discharging end of the batching box is connected with the top cover through a feeding pipe. By the adoption of the structure, automatic feeding is matched, raw materials can be further crushed through the auger conveying structure in the extrusion feeding process, and the uniformity is improved; grouped feeding and intermittent feeding are achieved, it is guaranteed that feeding is uniform and stable, and the situation that the screening quality is affected due to accumulation caused by excessive single-time feeding of materials is avoided; and during automatic discharging, rapid sorting, separation and collection are achieved, and the practicability is high.

Description

Technical Field

[0001] This utility model relates to the field of biomass fuel production and processing technology, and in particular to a biomass fuel crushing and screening device. Background Technology

[0002] In the preparation of biomass fuel, the crushing and screening of raw materials are two key steps that directly affect the quality and performance of the final product. In particular, uneven crushing directly impacts the subsequent pelleting process. Currently, common biomass fuel screening equipment on the market includes various types such as vibrating screens and drum screens. While these devices achieve preliminary material separation to some extent, they generally suffer from the following limitations: traditional equipment has low continuity in screening, making it unsuitable for large-scale production; furthermore, it has poor screening stability, is prone to clogging, and is more likely to result in poor screening quality when the feed accumulates, presenting numerous drawbacks. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a biomass fuel crushing and screening device with automatic feeding and a screw conveyor structure to further crush the raw materials and improve uniformity during the extrusion feeding process; intermittent feeding in groups ensures uniform and stable feeding and avoids material accumulation due to excessive feeding at one time, which affects the screening quality; inclined shaking screening automatically discharges and quickly sorts and collects the material, making it highly practical.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a biomass fuel crushing and screening device, including a shaking base. The top of the shaking base is connected to multiple support seats through multiple sets of elastic support members. The top of the support seats is provided with a screening trough. The screening trough is provided with a discharge port, a screen and a top cover. The top cover is provided with a slag discharge port. The bottom of the screening trough is connected to an eccentric motor through a first fixed seat. A feeding base is provided below the screening trough. A batching box is provided on the feeding base. The batching box cooperates with the discharge end of the auger conveyor structure. The discharge end of the batching box is connected to the top cover through a feeding pipe.

[0005] In a preferred embodiment, the auger conveyor structure is equipped with an adjusting support and a wide-mouth feed chute.

[0006] In the preferred embodiment, the feeding pipe is a universal joint.

[0007] In a preferred embodiment, the mixing box is equipped with a dispensing shaft, which has multiple dispensing plates. The dispensing shaft is connected to the output end of a drive motor, and the drive motor is connected to the mixing box via a second fixed base.

[0008] In a preferred embodiment, the overall length of the support seat near the discharge end of the screening trough is less than the overall length of the support seat near the feed end of the screening trough.

[0009] The biomass fuel crushing and screening device provided by this utility model, by adopting the above-mentioned structure, has the following beneficial effects:

[0010] (1) Automatic feeding is combined with the screw conveyor structure during the extrusion feeding process to further crush the raw materials and improve the uniformity;

[0011] (2) Feeding in groups and intermittently to ensure uniform and stable feeding, and to avoid excessive material accumulation at one time, which would affect the screening quality;

[0012] (3) Inclined shaking screening, automatic discharge and rapid sorting, separation and collection, with strong practicality. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments:

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

[0015] Figure 2 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 3 This is a schematic diagram of the material shaking seat and its screening groove structure of the present invention.

[0017] Figure 4 This is a schematic diagram of the internal structure of the ingredient box of this utility model.

[0018] In the diagram: 1. Shaking base; 2. Elastic support; 3. Support base; 4. Screening trough; 5. Top cover; 6. Slag discharge port; 7. Feeding base; 8. Batching box; 9. Feeding pipe; 10. Screw conveyor structure; 11. Adjustable support; 12. Wide-mouth feed trough; 13. Discharge port; 14. Screen; 15. First fixed base; 16. Eccentric motor; 17. Distributing shaft; 18. Distributing plate; 19. Drive motor; 20. Second fixed base. Detailed Implementation

[0019] like Figure 1-4 In the biomass fuel crushing and screening device, there is a shaking seat 1. The top of the shaking seat 1 is connected to multiple support seats 3 through multiple sets of elastic support members 2. The top of the support seat 3 is provided with a screening trough 4. The screening trough 4 is provided with a discharge port 13, a screen 14 and a top cover 5. The top cover 5 is provided with a slag discharge port 6. The bottom of the screening trough 4 is connected to an eccentric motor 16 through a first fixed seat 15. The bottom of the screening trough 4 is provided with a feeding seat 7. The feeding seat 7 is provided with a batching box 8. The batching box 8 cooperates with the discharge end of the auger conveying structure 10. The discharge end of the batching box 8 is connected to the top cover 5 through a feeding pipe 9.

[0020] In a preferred embodiment, the auger conveyor structure 10 is provided with an adjusting support 11 and a wide-mouth feed chute 12.

[0021] In the preferred embodiment, the feeding pipe 9 is a universal joint.

[0022] In a preferred embodiment, the mixing box 8 is provided with a dispensing shaft 17, and the dispensing shaft 17 is provided with multiple dispensing plates 18. The dispensing shaft 17 is connected to the output end of the drive motor 19, and the drive motor 19 is connected to the mixing box 8 through the second fixed seat 20.

[0023] In a preferred embodiment, the overall length of the support 3 near the discharge end of the screening trough 4 is less than the overall length of the support 3 near the feed end of the screening trough 4.

[0024] The method of using this utility model is as follows:

[0025] Material input: Biomass fuel first enters the screw conveyor structure 10 through the wide-mouth feed chute 12. The screw conveyor structure transports the biomass fuel from the feed chute to the batching box 8. The rotation of the screw conveyor causes the material to move forward along the conveying direction, ensuring that the material is evenly distributed while further crushing the raw materials.

[0026] Material distribution: After the material enters the batching box 8, the multi-component batching plate 18 on the distribution shaft 17 rotates under the drive of the drive motor 19, and evenly distributes the material to different areas of the batching box.

[0027] Material screening: After the material enters the top cover 5, it falls into the screening tank 4. The bottom of the screening tank 4 is connected to the eccentric motor 16 through the first fixed seat 15. The vibration generated by the eccentric motor 16 causes the screening tank 4 to vibrate at high frequency. Under the action of vibration, the material is screened through the screen 14. Impurities and large particles generated during the screening process are discharged through the slag discharge port 6 on the top cover 5 to keep the screening tank 4 clean. At the same time, qualified material that passes through the screen 14 falls into the screening tank 4 and is output through the discharge port 13 on the screening tank 4.

[0028] The beneficial effects of this utility model are as follows: automatic feeding and the use of the auger conveyor structure during the extrusion feeding process can further crush the raw materials and improve the uniformity; intermittent feeding in groups ensures uniform and stable feeding and avoids the accumulation of materials due to excessive feeding at one time, which would affect the screening quality; inclined shaking screening allows for rapid sorting and separation of materials while automatically discharging them, making it highly practical.

Claims

1. A biomass fuel crushing and screening device, comprising a shaking base (1), characterized in that: The top of the shaking seat (1) is connected to multiple support seats (3) through multiple sets of elastic support members (2). The top of the support seat (3) is provided with a screening trough (4). The screening trough (4) is provided with a discharge port (13), a screen (14) and a top cover (5). The top cover (5) is provided with a slag discharge port (6). The bottom of the screening trough (4) is connected to the eccentric motor (16) through the first fixed seat (15). The bottom of the screening trough (4) is provided with a feeding seat (7). The feeding seat (7) is provided with a batching box (8). The batching box (8) is matched with the discharge end of the auger conveying structure (10). The discharge end of the batching box (8) is connected to the top cover (5) through a feeding pipe (9).

2. The biomass fuel crushing and screening device according to claim 1, characterized in that: The auger conveyor structure (10) is provided with an adjusting support (11) and a wide-mouth feed chute (12).

3. The biomass fuel crushing and screening device according to claim 1, characterized in that: The feeding pipe (9) is a universal joint.

4. The biomass fuel crushing and screening device according to claim 1, characterized in that: The mixing box (8) is provided with a distributing shaft (17), and the distributing shaft (17) is provided with multiple distributing plates (18). The distributing shaft (17) is connected to the output end of the drive motor (19), and the drive motor (19) is connected to the mixing box (8) through the second fixed seat (20).

5. The biomass fuel crushing and screening device according to claim 1, characterized in that: The overall length of the support (3) near the discharge end of the screening trough (4) is less than the overall length of the support (3) near the feed end of the screening trough (4).

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