Secondary fine crushing device for biomass pellet fuel production

Abstract

The utility model relates to the technical field of biomass pellet fuel production and crushing, and discloses a secondary fine crushing device for biomass pellet fuel production, which comprises a crusher and a worktable positioned at the bottom of the crusher, U-shaped plates are connected to two sides of the worktable, a pedal is fixedly connected between two vertical plates of each U-shaped plate, and a plurality of baffles are arranged on the pedal. The multiple pedals are arranged and distributed between the two vertical plates of the U-shaped plate at equal intervals. The two U-shaped plates and the pedals are arranged on the two sides of the crusher, so that maintenance personnel can climb and stand on the pedals on the U-shaped plates conveniently, structures such as a screen in the crusher can be disassembled and maintained conveniently, and the crusher is simple in structure, convenient to operate and high in practicability.

Description

Technical Field

[0001] This utility model relates to the field of biomass pellet fuel production and pulverization technology, specifically a secondary fine pulverization device for biomass pellet fuel production. Background Technology

[0002] Before pelleting, raw materials such as straw and trees need to undergo a primary rotary shearing and a secondary fine crushing process. These materials are then fed into a pelletizer to produce biomass pellets. A high-efficiency crusher is used in the secondary fine crushing process.

[0003] Patent publication number CN208258480U discloses a high-efficiency straw crusher, including a crushing chamber comprising a bottom plate, side plates, and a top plate. A motor is mounted on the outer side of each side plate, with its output connected to a rotating shaft. The shaft passes through two side plates and is fixed to several mounting plates between them. The shaft passes through the center of each mounting plate and is perpendicular to it. Several fixed shafts pass between the mounting plates, parallel to the rotating shaft and fixed to the outer edge of the mounting plates. Several annular grooves are provided on the fixed shafts, and vertical blades capable of freely rotating around these grooves are fitted around their outer circumferences. The ends of the vertical blades away from the annular grooves branch into two cutting blades. The top plate of the crushing chamber has a feed inlet, and a discharge pipe is connected to the lower end of the side plate away from the motor. This straw crusher has high straw crushing efficiency, effectively reducing energy consumption and costs associated with straw crushing.

[0004] Although the above-mentioned device solves the problem of high crushing efficiency, it still has the following defects: In order to ensure that the material can be discharged smoothly, the bottom of the crusher is equipped with a discharge port and a screw drive, which increases the height of the bottom of the equipment. The screen inside the equipment needs to be maintained and replaced regularly, which makes it inconvenient for employees to climb. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a secondary fine crushing device for biomass pellet fuel production, which enables the equipment to be equipped with a ladder structure when maintenance is required.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a secondary fine crushing device for biomass pellet fuel production, comprising a crusher and a worktable located at the bottom of the crusher, wherein U-shaped plates are connected to both sides of the worktable, and pedals are fixedly connected between the two vertical plates of the U-shaped plates, wherein multiple pedals are provided and are equidistantly distributed between the two vertical plates of the U-shaped plates.

[0007] Furthermore, the two U-shaped plates are rotatably connected to the slide rods that are fixedly connected to the workbench. The U-shaped plates are provided with slide grooves, and U-shaped extension plates are slidably connected in the slide grooves. The bottom of the U-shaped extension plates is fixedly connected to a base plate, and the bottom surface of the base plate is flush with the bottom surface of the workbench.

[0008] Furthermore, one end of the workbench is connected to a limiting structure, which includes a U-shaped support sleeve. A bottom support rod is slidably connected to the bottom of the U-shaped support sleeve, and the top surface of the bottom support rod abuts against the bottom surfaces of the two U-shaped plates.

[0009] Furthermore, the outer wall of the U-shaped plate is threaded with a threaded rod, one end of which passes through the U-shaped plate and is threadedly connected to the U-shaped extension plate.

[0010] Furthermore, a rotating boss is connected to the top of the threaded rod.

[0011] Furthermore, a handle is fixedly connected to the end of the bottom support rod.

[0012] Furthermore, an anti-slip pad is fixedly connected to the bottom surface of the base plate.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This utility model features two U-shaped plates and multiple footboards on both sides of the crusher, allowing maintenance personnel to easily climb and stand on the U-shaped plates to disassemble and maintain the internal structure of the crusher, such as the screen. The structure is simple, easy to operate, and highly practical. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the entire utility model;

[0016] Figure 2 This is a three-dimensional structural diagram of the U-shaped plate and pedal of this utility model in their unfolded state;

[0017] Figure 3 This is a three-dimensional structural diagram of a partial state of the present invention;

[0018] Figure 4 This is a three-dimensional structural diagram of the U-shaped plate and U-extend plate of this utility model in their unfolded state;

[0019] Figure 5 This is a three-dimensional structural diagram of the U-shaped support sleeve and bottom support rod of this utility model.

[0020] In the diagram: 1. Crusher; 2. Workbench; 3. Slide bar; 4. U-shaped plate; 5. Pedal; 6. U-shaped extension plate; 7. Base plate; 8. Threaded rod; 9. U-shaped support sleeve; 10. Bottom support rod; 11. Handle; 12. Slide groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] like Figures 1 to 5 As shown, a secondary fine crushing device for biomass pellet fuel production includes a crusher 1 and a worktable 2 located at the bottom of the crusher 1. U-shaped plates 4 are connected to both sides of the worktable 2. A pedal 5 is fixedly connected between the two vertical plates of the U-shaped plate 4. Multiple pedals 5 are provided and are evenly distributed between the two vertical plates of the U-shaped plate 4.

[0023] like Figure 1 As shown, the secondary fine crushing device for biomass pellet fuel production in this utility model is similar in structure to an existing high-efficiency straw crusher, such as the high-efficiency straw crusher disclosed in patent publication number CN208258480U. The main improvement of this utility model is that it provides a ladder structure for maintenance purposes. Figures 1 to 5 As shown, when the secondary fine crushing device for biomass pellet fuel production in this utility model needs to be repaired, maintenance personnel can climb up and stand on the multiple footboards 5 on the U-shaped plate 4 to facilitate the disassembly and maintenance of the screen and other structures inside the crusher 1.

[0024] By setting two U-shaped plates 4 and multiple footboards 5 on both sides of the crusher 1, maintenance personnel can easily climb up and stand on the multiple footboards 5 on the U-shaped plates 4 to facilitate the disassembly and maintenance of the screen and other structures inside the crusher 1.

[0025] like Figure 2 , Figure 3 and Figure 4 As shown, the two U-shaped plates 4 are rotatably connected to the slide rods 3 which are fixedly connected to the worktable 2. The U-shaped plates 4 are provided with slide grooves 12, and U-shaped extension plates 6 are slidably connected in the slide grooves 12. The bottom of the U-shaped extension plates 6 is fixedly connected to the bottom plate 7, and the bottom surface of the bottom plate 7 is flush with the bottom surface of the worktable 2.

[0026] Specifically, in order to ensure that the U-shaped plate 4 and the pedal 5 do not occupy space when not in use, the U-shaped plate 4 can be rotated so that the horizontal plate at the end of the U-shaped plate 4 slides on the outside of the slide bar 3 and rotates to the bottom of the workbench 2. This arrangement allows the U-shaped plate 4 to be stored without taking up too much space.

[0027] To ensure that the U-shaped plate 4 and the pedal 5 can be used as a ladder in an inclined state when rotated open, the U-shaped extension plate 6 can be pulled out so that the base plate 7 is against the ground and the top of the U-shaped plate 4 is against the position of the slide bar 3. With the base plate 7 against the ground, the stability of the ladder structure is ensured, and the length of the ladder structure can also be adjusted after it is rotated open.

[0028] After the U-shaped plate 4 and the pedal 5 are rotated open, the worker can push the U-shaped plate 4 to slide it on the outside of the slide bar 3. This ensures that the positions of the U-shaped plate 4 and the pedal 5 can be moved freely, making it easier for maintenance personnel to adjust their positions.

[0029] like Figure 3 and Figure 5 As shown, one end of the workbench 2 is connected to a limiting structure, which includes a U-shaped support sleeve 9. A bottom support rod 10 is slidably connected to the bottom of the U-shaped support sleeve 9, and the top surface of the bottom support rod 10 abuts against the bottom surfaces of the two U-shaped plates 4.

[0030] Specifically, after the two U-shaped plates 4 are stored, the bottom support rod 10 can slide the bottom surface of the two U-shaped plates 4, so that the bottom support rod 10 can limit the two U-shaped plates 4 under the limitation of the U-shaped support sleeve 9, preventing them from rotating down.

[0031] like Figure 2 As shown, the outer wall of the U-shaped plate 4 is threaded with a threaded rod 8, and one end of the threaded rod 8 passes through the U-shaped plate 4 and is threadedly connected to the U-shaped extension plate 6.

[0032] Specifically, in order to fix the U-shaped extension plate 6 in its position after being pulled out, the threaded rod 8 can be inserted through the U-shaped plate 4 and fixed to the U-shaped extension plate 6, thus ensuring that the U-shaped extension plate 6 will not move within the slide groove 12.

[0033] like Figure 2 As shown, a rotating boss is connected to the top of the threaded rod 8. This design facilitates the rotation of the threaded rod 8.

[0034] like Figure 2 , Figure 3 and Figure 5 As shown, a handle 11 is fixedly connected to the end of the bottom support rod 10. The handle 11 facilitates the pulling operation of the bottom support rod 10.

[0035] like Figure 4 As shown, an anti-slip pad is fixedly connected to the bottom surface of the base plate 7. The anti-slip pad makes the base plate 7 more stable when in contact with the ground.

[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A secondary fine grinding device for biomass pellet fuel production, comprising a grinder (1) and a worktable (2) located at the bottom of the grinder (1), characterized in that, Both sides of the workbench (2) are connected to U-shaped plates (4), and pedals (5) are fixedly connected between the two vertical plates of the U-shaped plates (4). Multiple pedals (5) are provided and are evenly distributed between the two vertical plates of the U-shaped plates (4).

2. The secondary fine grinding device for biomass pellet fuel production according to claim 1, characterized in that, The two U-shaped plates (4) are rotatably connected to the slide rods (3) that are fixedly connected to the workbench (2). The U-shaped plates (4) are provided with slide grooves (12). The U-shaped extension plates (6) are slidably connected in the slide grooves (12). The bottom of the U-shaped extension plates (6) is fixedly connected to the bottom plate (7). The bottom surface of the bottom plate (7) is flush with the bottom surface of the workbench (2).

3. The secondary fine grinding device for biomass pellet fuel production according to claim 2, characterized in that, One end of the workbench (2) is connected to a limiting structure, which includes a U-shaped support sleeve (9). A bottom support rod (10) is slidably connected to the bottom of the U-shaped support sleeve (9). The top surface of the bottom support rod (10) abuts against the bottom surfaces of the two U-shaped plates (4).

4. The secondary fine grinding device for biomass pellet fuel production according to claim 3, characterized in that, The outer wall of the U-shaped plate (4) is threaded with a threaded rod (8), and one end of the threaded rod (8) passes through the U-shaped plate (4) and is threadedly connected to the U-shaped extension plate (6).

5. A secondary fine grinding device for biomass pellet fuel production according to claim 4, characterized in that, The top of the threaded rod (8) is connected to a rotating boss.

6. A secondary fine grinding device for biomass pellet fuel production according to claim 5, characterized in that, A handle (11) is fixedly connected to the end of the bottom support rod (10).

7. A secondary fine grinding device for biomass pellet fuel production according to claim 6, characterized in that, The bottom surface of the base plate (7) is fixedly connected with an anti-slip pad.

Images