Biomass pellet fuel raw material crushing equipment

Abstract

This utility model relates to the technical field of biomass processing equipment, and discloses a biomass pellet fuel raw material crushing device, including a crushing box. Two rotating rods are rotatably connected through the upper part of the crushing box, and crushing rollers are fixedly connected to the outer rings of both rotating rods. A gear is fixedly connected to the right side of the outer ring of each rotating rod. A motor is fixedly connected to the outside of the right side of the crushing box, and the motor output is fixedly connected to the rear rotating rod. A screening component is arranged in the middle of the crushing box, and a rotating shaft is rotatably connected through the lower part of the crushing box. An eccentric wheel is fixedly connected to the outer ring of the rotating shaft. In this utility model, a cylinder drives a mounting plate and a brush plate to extend. The long bristles on the outer side of the brush plate can clean the residue remaining on the surface of the crushing rollers. When not in use, an electric push rod in conjunction with a baffle can prevent raw materials from entering the enclosure during crushing by the crushing rollers.

Description

Technical Field

[0001] This utility model relates to the technical field of biomass processing equipment, specifically to a biomass pellet fuel feedstock crushing equipment. Background Technology

[0002] Biomass mainly refers to lignocellulose (also known as lignin) from straw and trees, other than grains and fruits, as well as by-products from agricultural and forestry processing, agricultural and forestry waste, and livestock manure and waste from animal husbandry. Biomass usually needs to be crushed before it can be burned.

[0003] Most existing biomass crushing devices are inconvenient to clean the debris on the crushing rollers. The accumulation of residue may affect the crushing effect. In addition, the screen is usually set inside the crushing device, and the screen is easy to get clogged when crushing biomass, which will affect subsequent use.

[0004] To address the aforementioned issues, a biomass pellet fuel feedstock crushing device is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a biomass pellet fuel raw material crushing equipment, which solves the problems in the prior art of inconvenience in cleaning debris from the crushing roller and easy clogging of the screen, affecting subsequent use.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a biomass pellet fuel raw material crushing equipment, comprising a crushing box, two rotating rods passing through and rotatably connected to the upper part of the crushing box, crushing rollers fixedly connected to the outer rings of the two rotating rods, a gear fixedly connected to the right side of the outer ring of the rotating rods, a motor fixedly connected to the outside of the right side of the crushing box, and the output end of the motor fixedly connected to the rear rotating rods, a screening component arranged in the middle of the crushing box, a rotating shaft passing through and rotatably connected to the lower part of the crushing box, an eccentric wheel fixedly connected to the outer ring of the rotating shaft, and the eccentric wheel being located below the screening component, slots being opened on the upper part of the front and rear sides of the crushing box, a cover being fixedly connected to the outer side of the slots, an installation groove being provided at the top of the two slots, a cylinder being fixedly connected to the inner wall of the cover, an installation plate being fixedly connected to the output end of the cylinder, a telescopic groove being opened on the outer side of the installation plate, a uniformly distributed second spring being fixedly connected in the telescopic groove, a brush plate being fixedly connected to one end of the second spring, and a controller being fixedly connected to the lower front end of the crushing box.

[0007] By adopting the above technical solution, the cylinder drives the mounting plate and brush plate to extend, and the long bristles on the outside of the brush plate can clean the residue remaining on the surface of the crushing roller.

[0008] As a further description of the above technical solution: the screening assembly includes a support plate, both of which are fixedly connected to the front and rear sides of the inner wall of the crushing box, and a first spring is fixedly connected to the top of each of the two support plates. A screen plate is fixedly connected to the top of the first spring, and the screen plate is disposed below the crushing roller.

[0009] By adopting the above technical solution, the crushed raw material particles can be screened through the screening plate. Particles that meet the particle size requirements are screened to the bottom and discharged through the discharge cylinder. Larger particles that do not meet the requirements remain on the slightly inclined screen plate and are eventually discharged from the discharge port on the left, and can be recycled to the top of the crushing box for re-crushing.

[0010] As a further description of the above technical solution: both gears are located on the outside of the crushing chamber, and the two gears are meshed with each other.

[0011] By adopting the above technical solution, a transmission function is achieved, which facilitates the simultaneous rotation of the two rotating rods.

[0012] As a further description of the above technical solution: both the rotating shaft and the right end of the front rotating rod are fixedly connected to sprockets, and the two sprockets are externally meshed with chains.

[0013] By adopting the above technical solution, a transmission function is achieved, and the two sprockets are connected by a chain, enabling them to move synchronously.

[0014] As a further description of the above technical solution: an electric push rod is fixedly connected in the mounting groove, and a baffle is fixedly connected to the output end of the electric push rod.

[0015] By adopting the above technical solution, the baffle can be raised and lowered by an electric push rod. By setting the baffle, the raw material can be prevented from entering the hood when the crushing roller crushes the raw material.

[0016] As a further description of the above technical solution: the brush plate is disposed in the telescopic groove on one side.

[0017] By adopting the above technical solution, the brush plate can be extended and retracted within the expansion groove.

[0018] As a further description of the above technical solution: a discharge cylinder is fixedly connected to the bottom of the crushing box.

[0019] By adopting the above technical solution, the crushed and screened raw materials can be conveniently discharged through the discharge cylinder.

[0020] As a further description of the above technical solution: the left side of the crushing box has a discharge port, and the discharge port corresponds to the left side of the screening component.

[0021] By adopting the above technical solution, large particles of raw materials can be easily discharged through the outlet and collected by the collection box set on the outside.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. The biomass pellet fuel raw material crushing equipment provided by this utility model firstly drives the mounting plate and brush plate to extend through the cylinder. The long bristles on the outside of the brush plate can clean the residue remaining on the surface of the crushing roller. When not in use, the electric push rod and the baffle can prevent the raw material from entering the hood when the crushing roller crushes the raw material.

[0023] 2. The biomass pellet fuel raw material crushing equipment provided by this utility model, when the motor drives two crushing rollers to rotate and crush the raw material, the eccentric wheel is driven to rotate through the sprocket and chain to knock the bottom of the screen plate. When combined with the first spring, the screen plate vibrates and the crushed raw material particles are screened to avoid raw material blockage and make it more practical. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the overall structure of this utility model; Figure 3 This is a schematic diagram of the internal structure of the crushing box of this utility model; Figure 4 This is an exploded view of the mounting plate of this utility model.

[0025] In the diagram: 1. Crushing box; 2. Rotating rod; 3. Crushing roller; 4. Gear; 5. Motor; 6. Support plate; 7. First spring; 8. Screen plate; 9. Discharge port; 10. Rotating shaft; 11. Eccentric wheel; 12. Sprocket; 13. Chain; 14. Slot; 15. Mounting slot; 16. Electric push rod; 17. Baffle; 18. Cylinder; 19. Mounting plate; 20. Telescopic slot; 21. Second spring; 22. Brush plate; 23. Controller; 24. Discharge cylinder; 25. Cover. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] To further understand the contents of this utility model, a detailed description of this utility model will be provided with reference to the accompanying drawings.

[0028] Reference Figure 1-4 This utility model discloses a biomass pellet fuel raw material crushing device, comprising a crushing box 1. Two rotating rods 2 are rotatably connected and pass through the upper part of the crushing box 1. Supports (not shown in the figure) are installed at the four corners of the bottom of the crushing box 1, and a feed inlet is provided at the top of the crushing box 1. Crushing rollers 3 are fixedly connected to the outer rings of both rotating rods 2 for convenient crushing of raw materials. A gear 4 is fixedly connected to the right side of the outer ring of the rotating rods 2. A motor 5 is fixedly connected to the outside of the right side of the crushing box 1. The motor 5 is a speed-regulating motor, allowing direct adjustment of the motor speed via a controller 23. The output end of the motor 5 is fixedly connected to the rear rotating rods 2. A screening component is provided in the middle of the crushing box 1. A rotating shaft 10 is rotatably connected and passes through the lower part of the crushing box 1. An eccentric wheel 11 is fixedly connected to the outer ring of the rotating shaft 10, and the eccentric wheel 11 is located below the screening component. The rotating shaft 10 can drive the eccentric wheel 11 to rotate. The crushing chamber 1 has slots 14 on its upper front and rear sides. A cover 25 is fixedly connected to the outer side of each slot 14. Each slot 14 has a mounting groove 15 at its top, facilitating the storage of the baffle 17. A cylinder 18 is fixedly connected to the inner wall of the cover 25. A mounting plate 19 is fixedly connected to the output end of the cylinder 18. The cylinder 18 drives the mounting plate 19 to move. Limiting grooves (not shown in the figure) are provided on both sides of the mounting plate 19. The mounting plate 19 can extend and retract along the limiting posts (not shown in the figure) on both sides of the inner wall of the cover 25 via the limiting grooves on both sides, ensuring the stability of the mounting plate 19's movement. An extension groove 20 is provided on the outer side of the mounting plate 19. Evenly distributed second springs 21 are fixedly connected within the extension groove 20. A brush plate 22 is fixedly connected to one end of the second spring 21, and brush bristles are provided on the outer side of the brush plate 22. A controller 23 is fixedly connected to the lower front end of the crushing chamber 1.

[0029] Reference Figure 3 The screening assembly includes two support plates 6, both of which are fixedly connected to the front and rear sides of the inner wall of the crushing box 1. A first spring 7 is fixedly connected to the top of each support plate 6, and a screen plate 8 is fixedly connected to the top of each spring 7. The screen plate 8 is positioned below the crushing roller 3. The screen plate can screen the crushed raw material particles, allowing particles that meet the particle size requirements to be screened downwards and discharged through the discharge cylinder 24. Larger particles that do not meet the requirements remain on the slightly inclined screen plate 8 and are eventually discharged from the discharge port 9 on the left side, where they can be recycled to the top of the crushing box 1 for re-crushing.

[0030] Reference Figure 1-4Two gears 4 are both located on the outside of the crushing box 1 and are meshed together to provide transmission, facilitating the simultaneous rotation of the two rotating rods 2. A sprocket 12 is fixedly connected to both the rotating shaft 10 and the right end of the front rotating rod 2, and a chain 13 is externally connected to both sprockets 12 for transmission. The two sprockets 12 are connected by the chain 13 to enable synchronous movement. An electric push rod 16 is fixedly connected inside the mounting groove 15, and a baffle 17 is fixedly connected to the output end of the electric push rod 16. The electric push rod 16 can drive the baffle 17 to rise and fall, preventing raw materials from entering the cover 25 when the crushing roller 3 is crushing them. A brush plate 22 is positioned inwards inside the telescopic groove 20, allowing it to extend and retract within the groove. A discharge cylinder 24 is fixedly connected to the bottom of the crushing box 1, facilitating the discharge of crushed and screened raw materials. The crushing box 1 has a discharge port 9 through it on the left side, and the discharge port 9 corresponds to the left side of the screening component. Large particles of raw materials can be discharged through the discharge port 9 and collected by the collection box set on the outside.

[0031] Working principle: Controller 23 starts motor 5, and the output of motor 5 drives the rear rotating rod 2 to rotate. Due to the meshing of gears 4 on the right side of the two rotating rods 2, the front rotating rod 2 rotates synchronously in the opposite direction to the rear rotating rod 2, thereby causing the two crushing rollers 3 to rotate in opposite directions within the crushing box 1. Biomass raw materials are fed into the crushing box 1 from the top and are initially crushed by the squeezing and shearing action between the two opposing rotating crushing rollers 3. The crushed raw materials fall to the screening assembly below. The screening assembly consists of a support plate 6, a first spring 7, and a screen plate 8. The initially crushed raw materials fall onto the screen plate 8. At the same time, the front rotating rod 2 drives the rotating shaft 10 to rotate through the transmission of sprocket 12 and chain 13, causing the eccentric wheel 11 to rotate synchronously. The eccentric wheel 11 continuously impacts the bottom of the screen plate 8, and with the elastic reset action of the first spring 7, the screen plate 8 vibrates at high frequency, realizing the screening of the raw materials. Fine materials that meet the particle size requirements fall through the screen plate 8 into the bottom of the crushing box 1 and are discharged through the discharge cylinder 24. Coarse material that fails to pass through the screen plate 8 moves to the left under the action of vibration and a slightly tilted screen plate 8, and is discharged through the discharge port 9 on the left side of the crushing box 1. It can be re-poured into the top of the crushing box 1 for secondary crushing as needed to ensure uniform crushing of the raw material. When cleaning the debris on the surface of the crushing rollers 3 after the work is completed, the speed of the motor 5 is directly adjusted by the controller 23. This reduces the speed of the two crushing rollers 3. Simultaneously, the electric push rod 16 retracts, driving the baffle 17 into the mounting groove 15. Then, the cylinder 18 pushes the mounting plate 19 to move inwards into the crushing box 1, allowing the brush plate 22 to pass through the slot 14 and contact the surface of the crushing rollers 3. A second spring 21 is provided in the telescopic groove 20 of the mounting plate 19. Under the elastic force of the second spring 21, the brush plate 22 tightly adheres to the surface of the crushing rollers 3, cleaning the residue as the crushing rollers 3 rotate. After cleaning, the cylinder 18 drives the brush plate 22 back into the slot 14.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A biomass pellet fuel feedstock crushing device, comprising a crushing box (1), characterized in that: The crushing box (1) has two rotating rods (2) that pass through and rotatably connect to the upper part of the crushing box (1). Crushing rollers (3) are fixedly connected to the outer rings of both rotating rods (2). A gear (4) is fixedly connected to the right side of the outer ring of each rotating rod (2). A motor (5) is fixedly connected to the outside of the right side of the crushing box (1), and the output end of the motor (5) is fixedly connected to the rear rotating rod (2). A screening assembly is provided in the middle of the crushing box (1). A rotating shaft (10) passes through and rotatably connects to the lower part of the crushing box (1). An eccentric wheel (11) is fixedly connected to the outer ring of the rotating shaft (10), and the eccentric wheel (11) is located below the screening assembly. The crushing box (1) 1) A slot (14) is provided on the upper front and rear sides. A cover (25) is fixedly connected to the outside of the slot (14). An installation slot (15) is provided on the top of the two slots (14). A cylinder (18) is fixedly connected to the inner wall of the cover (25). An installation plate (19) is fixedly connected to the output end of the cylinder (18). A telescopic groove (20) is provided on the outside of the installation plate (19). A uniformly distributed second spring (21) is fixedly connected in the telescopic groove (20). A brush plate (22) is fixedly connected to one end of the second spring (21) outward. A controller (23) is fixedly connected to the lower front end of the crushing box (1).

2. The biomass pellet fuel feedstock crushing equipment according to claim 1, characterized in that: The screening assembly includes a support plate (6), both of which are fixedly connected to the front and rear sides of the inner wall of the crushing box (1). A first spring (7) is fixedly connected to the top of each of the two support plates (6), and a screen plate (8) is fixedly connected to the top of the first spring (7). The screen plate (8) is located below the crushing roller (3).

3. The biomass pellet fuel feedstock crushing equipment according to claim 1, characterized in that: Both gears (4) are located outside the crushing box (1), and the two gears (4) are meshed with each other.

4. The biomass pellet fuel feedstock crushing equipment according to claim 1, characterized in that: Both the rotating shaft (10) and the right end of the front rotating rod (2) are fixedly connected to sprockets (12), and the two sprockets (12) are externally meshed with chains (13).

5. The biomass pellet fuel feedstock crushing equipment according to claim 1, characterized in that: An electric push rod (16) is fixedly connected inside the mounting groove (15), and a baffle (17) is fixedly connected to the output end of the electric push rod (16).

6. The biomass pellet fuel feedstock crushing equipment according to claim 1, characterized in that: The brush plate (22) is set in the expansion groove (20) on one side.

7. The biomass pellet fuel feedstock crushing equipment according to claim 1, characterized in that: The bottom of the crushing box (1) is fixedly connected to the discharge cylinder (24).

8. The biomass pellet fuel feedstock crushing equipment according to claim 1, characterized in that: The crushing box (1) has a discharge port (9) extending through its left side, and the discharge port (9) corresponds to the left side of the screening component.

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