Self-cleaning structure of biomass particle granulator

Abstract

The utility model discloses a self-cleaning structure of a biomass particle granulator, which comprises a lower pressing block, the interior of the lower pressing block is hollow, an inserting needle for dredging a hole of a granulation plate is arranged in the lower pressing block, and the lower pressing block can descend to extrude slurry between the lower pressing block and the granulation plate, so that the slurry can be cleaned, and the self-cleaning structure of the biomass particle granulator can be used for cleaning the granulation plate. By means of the arranged inserting needles and the pushing assembly of the inserting needles, when the granulation plate needs to be cleaned, the inserting needles can be inserted into the holes of the granulation plate to dredge the holes, the situation that the holes are blocked due to the fact that slurry remains is avoided, and later use is facilitated; and the other reason is that the connecting plate and the contact pin are arranged to be hollow-out, so that after the water bag is injected with water and expands, the electronic valve is opened, water in the water bag can enter the connecting plate and the contact pin, the water is discharged through the drainage hole, and the hole and the granulation plate are washed and further cleaned.

Description

Technical Field

[0001] This utility model relates to the field of pelletizing technology, specifically to a self-cleaning structure for a biomass pelletizing machine. Background Technology

[0002] A pellet mill is a molding machine that can shape materials into specific shapes. Biomass pellets are produced by cold-forming and densifying raw materials such as crushed biomass straw and forestry waste at room temperature using pressure rollers and ring dies.

[0003] According to the search, a biomass pellet production granulator with patent number CN220276909U is described. The upper surface of the box is fixed with an electric push rod, and a connecting rod is fixed to the outside of the output shaft of the electric push rod. A lower pressing block is fixed to the bottom of the connecting rod and inside the box. The lower pressing block is slidably connected to the inside of the box. A granulation plate is fixed inside the box and below the lower pressing block. The slurry is then pushed downward and squeezed. The slurry is then squeezed and cut into granules by the granulation plate forming and cutting structure.

[0004] After the above operations are completed, some slurry will remain in the holes of the pelletizing plate. If the slurry is not properly cleaned, it will cause blockage of the holes, which will affect the pelleting and reduce work efficiency. Therefore, it is necessary to clean the pelletizing plate in time after use. To this end, a self-cleaning structure for a biomass pelletizer is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a self-cleaning structure for a biomass pellet mill to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a self-cleaning structure for a biomass pellet mill, comprising a lower pressing block, the interior of which is hollow, and a pin for unblocking the holes in the pelletizing plate is installed inside the lower pressing block, a cover plate is installed at the upper end of the lower pressing block, and a pushing component for pushing the pin to extend out from its interior is installed inside the lower pressing block.

[0007] Preferably, the pushing component includes a connecting plate, the pin is installed at the bottom of the connecting plate, a rebound spring is provided between the connecting plate and the inner bottom surface of the lower pressing block, a water bag is provided on the connecting plate, and a push plate is provided at the upper end of the water bag. By injecting water into the water bag to make it expand, the push plate abuts against the cover plate, pushing the pin to extend from the lower end of the lower pressing block to clear the holes of the granulation plate.

[0008] Preferably, the upper surface of the connecting plate is recessed inward, and is located in the recess when there is no water in the water bag. Under the action of the rebound spring, the connecting plate is in contact with the cover plate, and the pin is located in the hole opened at the bottom of the lower pressure block under the action of the rebound spring, and is flush with the bottom surface of the lower pressure block.

[0009] Preferably, the push plate covers the recess, and the upper surface of the push plate is flush with the upper surface of the connecting plate.

[0010] Preferably, a pushing component is installed at the upper end of the cover plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: A self-cleaning structure for a biomass pellet mill, through the setting of a lower pressure block, the lower pressure block descends to squeeze the slurry between the lower pressure block and the pelletizing plate, causing the slurry to be squeezed out from the holes of the pelletizing plate. Through the setting of pins and its pushing component, when it is necessary to clean the pelletizing plate, the pins can be inserted into the holes of the pelletizing plate to unclog the holes and prevent slurry residue from clogging the holes, so as to facilitate later use. Another reason for using water to fill the water bag as an expansion agent is that the connecting plate and the pins are set in a hollow shape. After the water bag is filled with water and expands, the water in the water bag can enter the connecting plate and the pins by opening the electronic valve, and the water can be discharged through the drain hole to rinse the holes and the pelletizing plate for further cleaning. This utility model improves the lower pressure block in the prior art so that it can simultaneously unclog the holes of the pelletizing plate and clean it, which is convenient for the maintenance of the pelletizing plate. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a partial structural disassembly diagram of the present invention;

[0014] Figure 3 This is a cross-sectional view of the connecting plate, the insert pin, and the water bag structure of this utility model.

[0015] In the diagram: 1-Pressing block, 2-Pin, 3-Cover plate, 4-Push assembly, 41-Connecting plate, 42-Rebound spring, 43-Water bag, 44-Push plate, 5-Drain hole, 6-Connecting pipe, 7-Electronic valve. Detailed Implementation

[0016] 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.

[0017] Please see Figure 1-3 This utility model provides a technical solution: a self-cleaning structure for a biomass pellet mill, including a lower pressure block 1, the interior of the lower pressure block 1 is hollow, and a pin 2 for unblocking the holes of the pelletizing plate is installed inside the lower pressure block 1. A cover plate 3 is installed at the upper end of the lower pressure block 1, and a pushing component 4 for pushing the pin 2 to extend out from its interior is installed inside the lower pressure block 1.

[0018] The bottom of the pin 2 is sealed, which can block the bottom of the pressure block 1.

[0019] Specifically, the pushing component 4 includes a connecting plate 41, the pin 2 is installed at the bottom of the connecting plate 41, a spring 42 is provided between the connecting plate 41 and the inner bottom surface of the lower pressing block 1, a water bag 43 is provided on the connecting plate 41, and a push plate 44 is provided at the upper end of the water bag 43. By injecting water into the water bag 43 to make it expand, the push plate abuts against the cover plate, pushing the pin 2 to extend from the lower end of the lower pressing block 1 to clear the holes of the granulation plate.

[0020] Specifically, the upper surface of the connecting plate 41 is recessed inward, and it is located in the recess when there is no water in the water bag 43. The push plate 44 covers the recess, and the upper end face of the push plate 44 is flush with the upper end face of the connecting plate 41. Under the action of the spring spring 42, the connecting plate 41 is in contact with the cover plate 3. Under the action of the spring spring 42, the pin 2 is located in the hole opened at the bottom of the lower pressure block 1 and is flush with the bottom surface of the lower pressure block 1.

[0021] Specifically, the interior of the connecting plate 41 is hollow, the interior of the pin 2 is hollow, and the connecting plate 41 is connected to the pin 2. The pin 2 has evenly distributed drainage holes 5 on its periphery. A connecting pipe 6 is provided between the water bag 43 and the connecting plate 41. An electronic valve 7 is installed on the connecting pipe 6 to control the opening or closing of the connecting pipe 6.

[0022] The upper end of the cover plate 3 is equipped with a drive assembly that pushes the lower pressure block 1 to move downward. The drive assembly is a mechanism in the prior art that can drive the lower pressure block to move longitudinally, such as an electric push rod or a hydraulic cylinder.

[0023] Working principle: The slurry is squeezed by the lower pressure block 1, causing it to be extruded and shaped through the holes of the granulation plate. After the operation is completed, water is introduced into the water bag 43 by starting the external water pump. At this time, the electronic valve 7 is closed, the connecting pipe 6 is disconnected, and the water bag 43 expands. Because the push plate 44 is in contact with the cover plate 3, it drives the connecting plate 41 and the pin 2 to move downward. The return spring 42 is compressed, and the pin 2 extends out from the bottom of the lower pressure block 1. Under the push of the drive component, the lower pressure block 1 moves closer to the granulation plate, so that the pin 2 is inserted into the hole of the granulation plate to clear it. To avoid incomplete clearing, the lower pressure block 1 is repeatedly driven up and down several times, so that the pin 2 is repeatedly inserted into the hole of the granulation plate. Then the water pump continuously injects water, opens the electronic valve 7, and connects the connecting plate 41 and the water bag 43 through the connecting pipe 6. The water flows out through the drain hole 5 and sprays onto the granulation plate and the holes of the granulation plate to clean the granulation plate, thereby completing the maintenance of the granulation plate and preventing clogging.

[0024] 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 self-cleaning structure for a biomass pellet mill, comprising a lower pressing block, characterized in that: The interior of the pressing block is hollow, and a pin for unblocking the holes in the granulation plate is installed inside the pressing block. A cover plate is installed at the upper end of the pressing block, and a pushing component for pushing the pin to extend out from the inside of the pressing block is installed inside the pressing block.

2. The self-cleaning structure of the biomass pellet mill according to claim 1, characterized in that: The pushing assembly includes a connecting plate, the pin is installed at the bottom of the connecting plate, a spring is provided between the connecting plate and the inner bottom surface of the lower pressing block, a water bag is provided on the connecting plate, and a push plate is provided at the upper end of the water bag. By injecting water into the water bag to make it expand, the push plate abuts against the cover plate, pushing the pin to extend from the lower end of the lower pressing block to clear the holes of the granulation plate.

3. The self-cleaning structure of the biomass pellet mill according to claim 2, characterized in that: The upper surface of the connecting plate is recessed inward, and it is located in the recess when there is no water in the water bag. Under the action of the spring spring, the connecting plate is attached to the cover plate. Under the action of the spring spring, the pin is located in the hole opened at the bottom of the lower pressure block and is flush with the bottom surface of the lower pressure block.

4. The self-cleaning structure of the biomass pellet mill according to claim 3, characterized in that: The push plate covers the recessed area, and the upper surface of the push plate is flush with the upper surface of the connecting plate.

5. The self-cleaning structure of the biomass pellet mill according to claim 1, characterized in that: A pushing component is installed at the upper end of the cover plate.

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