Negative pressure dust removal structure for starch processing

Abstract

The utility model relates to the technical field of starch processing, and discloses a negative pressure dust removal structure for starch processing, which comprises a dust removal box, a plurality of filter elements and a bottom plate, the left side of the dust removal box is communicated with an inlet pipe, the right side of the dust removal box is communicated with an outlet pipe, and the inner wall of the outlet pipe is fixedly connected with a fan; a partition plate is fixedly connected to the upper middle portion of the inner wall of the dust removal box, a plurality of mounting seats are fixedly connected to the bottom of the partition plate, mounting rings are fixedly connected to the tops of the filter elements, inserting blocks are fixedly connected to the front and rear sides of the tops of the mounting rings, and two inserting openings are formed in the front and rear sides of the bottoms of the mounting seats. According to the utility model, through the combined structure of the mounting seat, the mounting ring, the guide post, the guide block, the insertion block, the insertion opening, the separation blade and the limiting block, the filter element is accurately positioned and quickly fixed in the mounting process, the sealing performance is good, dust leakage is prevented, and meanwhile, subsequent disassembly and maintenance are facilitated.

Description

Technical Field

[0001] This utility model relates to the field of starch processing technology, and in particular to a negative pressure dust removal structure for starch processing. Background Technology

[0002] Negative pressure dust removal structures are devices that use fans to generate negative pressure suction to suck in and separate dust generated during the production process. In the starch processing industry, the crushing, screening, and conveying of raw materials during starch production generate a large amount of dust. This dust not only affects the air quality in the workshop and endangers the health of workers, but can also cause explosions due to dust accumulation. Negative pressure dust removal structures purify the production environment by sucking in dust-laden air into the dust removal system, treating it, and then discharging clean air, thus ensuring production safety and product quality. Therefore, they have become an indispensable environmental protection device in starch processing production lines.

[0003] Traditional negative pressure dust collection structures for starch processing consist of a fan, suction pipes, a dust collector, and a dust hopper. During operation, dust-laden air enters the dust collector, where dust is trapped by the filter bags. The purified air is then discharged by the fan, while the trapped dust falls into the dust hopper, requiring periodic manual cleaning. However, due to the compact design of the dust collector and the narrow installation space for the filter bags, manual cleaning and replacement require significant time and effort, and the filter bags can be damaged during disassembly and installation. Existing technology has optimized the structure of the dust collector by using flange connections to simplify the installation and disassembly of the filter bags. However, in actual use in the starch processing environment, dust adheres to the flange connections, increasing resistance during disassembly and making it difficult to open quickly. Maintenance personnel still need to spend considerable time and effort on troubleshooting and repair, failing to meet the demands of efficient and continuous operation in starch processing. Therefore, a new negative pressure dust collection structure for starch processing is proposed to address these issues. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a negative pressure dust removal structure for starch processing, which aims to improve the problem in the prior art where dust adheres to the flange connection in the starch processing environment, resulting in increased resistance during disassembly and difficulty in opening quickly.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a negative pressure dust removal structure for starch processing, comprising a dust collection box, multiple filter elements, and a base plate. An inlet pipe is connected to the left side of the dust collection box, and an outlet pipe is connected to the right side of the dust collection box. A fan is fixedly connected to the inner wall of the outlet pipe. A partition plate is fixedly connected to the upper middle part of the inner wall of the dust collection box. Multiple mounting seats are fixedly connected to the bottom of the partition plate. Mounting rings are fixedly connected to the top of each of the multiple filter elements. Insert blocks are fixedly connected to the front and rear sides of the top of each of the multiple mounting rings. Two insertion ports are opened on the front and rear sides of the bottom of each of the multiple mounting seats. Baffles are slidably connected to the inner walls of each of the multiple mounting seats. Guide posts are fixedly connected to the left and right sides of the outer walls of each of the multiple mounting rings. Guide blocks are fixedly connected to the left and right sides of the bottom of each of the multiple insertion ports. Limiting blocks are fixedly connected to the front and rear sides of the bottom of each of the multiple insertion ports. A dust collection hopper is connected to the bottom of the dust collection hopper. A dust removal mechanism is provided at the bottom of the dust collection hopper to remove falling dust.

[0006] As a further description of the above technical solution:

[0007] The ash discharge mechanism includes an ash discharge valve, the top of which is fixedly connected to the bottom of the dust collection hopper. A track is fixedly connected to the top of the base plate, a collection box is slidably connected to the top of the track, and multiple pulleys are fixedly connected to the bottom of the collection box. A top block is slidably connected to the inner wall of the track, a screw is rotatably connected to the inner wall of the track, and a wedge is threadedly connected to the outer wall of the screw.

[0008] As a further description of the above technical solution:

[0009] The ash unloading mechanism also includes a sealing ring, the bottom of which is fixedly connected to the top of the collection box, and the left side of the track is inclined.

[0010] As a further description of the above technical solution:

[0011] The top of the dust collection box is fixedly connected to an air jet, and the bottom of the air jet is connected to multiple air pipes, each of which has multiple nozzles at its bottom.

[0012] As a further description of the above technical solution:

[0013] A door is rotatably connected to the front of the outer wall of the dust collector, and a door handle is fixedly connected to the right side of the outer wall of the door.

[0014] As a further description of the above technical solution:

[0015] Multiple hinges are fixedly connected to the left side of the outer wall of the box door, and support legs are fixedly connected to the four corners of the top of the base plate.

[0016] As a further description of the above technical solution:

[0017] The bottom of the inlet pipe is connected to a storage tank, and the left side of the storage tank is connected to an inlet.

[0018] As a further description of the above technical solution:

[0019] A support is fixedly connected to the bottom of the storage tank, and a stirring motor is fixedly connected to the bottom of the inner wall of the support.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the combined structure of the mounting base, mounting ring, guide post, guide block, insert block, socket, baffle, and limiting block enables precise positioning, rapid fixing, and excellent sealing during filter element installation. This prevents dust leakage and facilitates subsequent disassembly and maintenance. The filter element installation and disassembly process can be completed without tools, making equipment maintenance more convenient, reducing maintenance time and labor costs, and improving equipment operating efficiency and reliability.

[0022] 2. In this utility model, the inclined design on the left side of the track and the setting of pulleys make the pushing and moving of the collection box more labor-saving and convenient, reducing the labor intensity of operators. The mechanical transmission structure composed of screw, inclined block and top block enables the collection box to be stably lifted and tightly fitted with the sealing ring at the bottom of the ash discharge valve to form a sealing structure, effectively preventing dust leakage during the ash discharge process. Attached Figure Description

[0023] Figure 1 This is a perspective view of a negative pressure dust removal structure for starch processing proposed in this utility model;

[0024] Figure 2 This is a front view of a negative pressure dust removal structure for starch processing proposed in this utility model;

[0025] Figure 3 This is a partial cross-sectional view of a negative pressure dust removal structure for starch processing proposed in this utility model;

[0026] Figure 4 This is a partial structural exploded view of a negative pressure dust removal structure for starch processing proposed in this utility model;

[0027] Figure 5 This is an exploded view of the ash removal mechanism of a negative pressure dust removal structure for starch processing proposed in this utility model.

[0028] Legend:

[0029] 1. Dust collection box; 2. Ash discharge mechanism; 201. Ash discharge valve; 202. Track; 203. Collection box; 204. Pulley; 205. Top block; 206. Screw; 207. Inclined block; 208. Sealing ring; 3. Inlet pipe; 4. Outlet pipe; 5. Fan; 6. Divider plate; 7. Mounting base; 8. Filter element; 9. Mounting ring; 10. Insert block; 11. Insertion port; 12. Baffle plate; 13. Guide column; 14. Guide block; 15. Limiting block; 16. Dust collection hopper; 17. Base plate; 18. Air jet; 19. Air pipe; 20. Nozzle; 21. Box door; 22. Door handle; 23. Hinge; 24. Support leg; 25. Storage tank; 26. Inlet; 27. Support; 28. Agitator motor. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0031] See attached document Figure 2 Appendix Figure 3 and attached Figure 4This utility model provides an embodiment of a negative pressure dust removal structure for starch processing, comprising a dust collection box 1, multiple filter elements 8, and a base plate 17. The dust collection box 1 serves as the main outer shell of the entire dust removal structure, housing and protecting the internal components and providing a closed space for dust removal operations. The multiple filter elements 8 are the core components for dust filtration, intercepting dust in the dust-laden airflow to purify the gas. The base plate 17 supports the entire negative pressure dust removal structure, ensuring the stable installation of all components. An inlet pipe 3 connects to the left side of the dust collection box 1, providing a channel for dust-laden gas to enter the dust collection box 1 and guiding the gas flow into the interior of the dust removal structure. An outlet pipe 4 connects to the right side of the dust collection box 1, discharging the purified gas filtered by the filter elements 8, ensuring the purified gas... The gas flows to the outside. A fan 5 is fixedly connected to the inner wall of the outlet pipe 4. By drawing air, a negative pressure environment is formed in the dust collector 1, providing power for the flow of dust-laden gas. A partition plate 6 is fixedly connected to the upper part of the inner wall of the dust collector 1, dividing the interior of the dust collector 1 into upper and lower areas, rationally planning the airflow path and optimizing the dust removal effect. Multiple mounting seats 7 are fixedly connected to the bottom of the partition plate 6 to fix the filter element 8, ensuring that the filter element 8 is accurately and stably installed in the dust collector 1. Each of the multiple filter elements 8 has a mounting ring 9 fixedly connected to its top, which cooperates with the mounting seat 7 to fix the filter element 8 and provides a leverage point for disassembling the filter element 8. Insert blocks 10 are fixedly connected to the front and rear sides of the top of the multiple mounting rings 9, which cooperate with the insertion port 11 at the bottom of the mounting seat 7 to achieve the filter element 8 installation and fixation. For the initial positioning and fixing of the filter element 8 during installation, two insertion ports 11 are opened on the front and rear sides of the bottom of multiple mounting bases 7, which cooperate with the insertion blocks 10 to facilitate the installation and removal of the filter element 8 and improve installation efficiency. Baffles 12 are slidably connected to the inner walls of multiple mounting bases 7. After the filter element 8 is installed in place, they slide to close the insertion ports 11, forming a sealed structure to prevent dust leakage. Guide posts 13 are fixedly connected to the left and right sides of the outer walls of multiple mounting rings 9, which cooperate with the guide blocks 14 at the bottom of the insertion ports 11 to provide guidance for the installation of the filter element 8 and ensure that the insertion blocks 10 are accurately inserted into the insertion ports 11. Guide blocks 14 are fixedly connected to the left and right sides of the bottom of multiple insertion ports 11, which cooperate with the guide posts 13 to ensure the accuracy and stability of the filter element 8 installation process. The bottom of multiple insertion ports 11... Limiting blocks 15 are fixedly connected to both the front and rear sides. After the filter element 8 is installed in place, they restrict the rotation of the mounting ring 9, preventing the filter element 8 from loosening and enhancing installation reliability. The bottom of the dust collection box 1 is connected to a dust collection hopper 16, which is used to collect the dust shaken off from the surface of the filter element 8, realizing centralized dust storage. The top of the dust collection box 1 is fixedly connected to an air jet 18, which generates high-pressure airflow to clean the filter element 8 and restore its filtration performance. The bottom of the air jet 18 is connected to multiple air pipes 19, which deliver the high-pressure airflow generated by the air jet 18 to various nozzles 20. The bottom of each of the multiple air pipes 19 is equipped with multiple nozzles 20, which spray the high-pressure airflow into the interior of the filter element 8, causing the filter element 8 to vibrate and shake off the dust adhering to its surface. The bottom of the dust collection hopper 16 is equipped with a dust discharge mechanism 2.The dust removal mechanism 2 is used to remove falling dust;

[0032] Specifically, when the starch processing equipment generates dust-laden gas, the fan 5 draws air through the outlet pipe 4, creating a negative pressure inside the dust collector 1. The dust-laden gas enters the chamber through the inlet pipe 3. The internal partition plate 6 divides the space into upper and lower parts. The mounting base 7 below the partition plate 6 is used to fix the filter element 8. During installation, the guide post 13 of the top mounting ring 9 of the filter element 8 is aligned with the guide block 14, so that the insert 10 is aligned with the insertion port 11. The mounting ring 9 is pushed vertically upward to make the insert 10 engage with the gap of the baffle 12. Then, it is rotated 90 degrees clockwise, and the guide post 13 engages with the limiting block 15. At the same time, the insert 10 pushes the baffle 12 to rotate and close the insertion port 11. During dust removal... Dust-laden airflow passes through filter element 8, and dust is intercepted on the outer surface of filter element 8. The purified gas is discharged through the internal channel and outlet pipe 4 of filter element 8. As filtration proceeds, dust accumulates on the surface of filter element 8. Jet jet 18 sprays high-pressure airflow into the interior of filter element 8 through air pipe 19 and nozzle 20, causing it to expand and vibrate, shaking off the dust into dust collection hopper 16. When replacing filter element 8, turn off fan 5 and jet jet 18, rotate mounting ring 9 counterclockwise to unlock baffle 12, and move mounting ring 9 vertically downward to complete the disassembly. This structure achieves quick disassembly and assembly of filter element 8 through positioning of guide post 13 and guide block 14, rotational sealing of baffle 12, and locking and fixing of limit block 15.

[0033] See attached document Figure 1 Appendix Figure 2 and attached Figure 5The ash discharge mechanism 2 includes an ash discharge valve 201, the top of which is fixedly connected to the bottom of the dust collection hopper 16. This valve controls the discharge of dust from the dust collection hopper 16, enabling the opening and closing of the ash discharge process. A track 202 is fixedly connected to the top of the base plate 17, providing a guide path for the sliding of the collection box 203 and ensuring accurate movement of the collection box 203. The collection box 203 is slidably connected to the top of the track 202, collecting the dust discharged from the dust collection hopper 16 and serving as a temporary dust storage container. Multiple pulleys 204 are fixedly connected to the bottom of the collection box 203. The pulleys 204, in conjunction with the track 202, reduce friction during sliding, facilitating operation. A top block 205 is slidably connected to the inner wall of the track 202, sliding along the inner wall of the track 202 under the action of an inclined block 207, used to lift the collection box. The collection box 203 is sealed to the bottom of the ash discharge valve 201. The inner wall of the track 202 is rotatably connected to the screw 206. By rotating the screw 206, the inclined block 207 can be moved, providing a power source for the movement of the top block 205. The outer wall of the screw 206 is threaded to the inclined block 207, which converts the rotational motion of the screw 206 into the linear motion of the inclined block 207, thereby pushing the top block 205 to achieve lifting and lowering. The ash discharge mechanism 2 also includes a sealing ring 208. The bottom of the sealing ring 208 is fixedly connected to the top of the collection box 203. When the collection box 203 is in contact with the bottom of the ash discharge valve 201, it plays a sealing role to prevent dust leakage during the ash discharge process. The left side of the track 202 is inclined, which makes it easy for the operator to push the collection box 203 onto the track 202 along the inclined surface, reducing the difficulty of operation and improving the convenience of ash discharge operation.

[0034] Specifically, during ash unloading, the operator pushes the collection box 203 along the left inclined surface of the track 202. The pulley 204 slides on the top of the track 202 to the inner wall of the embedded groove, aligning the top of the collection box 203 with the bottom of the ash unloading valve 201. At this time, the sealing ring 208 is pre-installed on the top of the collection box 203. The screw 206 is rotated to make it rotate on the inner wall of the track 202, driving the inclined block 207 to move backward. The inclined surface of the inclined block 207 presses against the top block 205, causing it to slide upward along the inner wall of the track 202 and contact the bottom of the collection box 203. Continue pushing upwards until the sealing ring 208 is tightly fitted to the bottom outlet of the ash discharge valve 201, opening the ash discharge valve 201. The dust in the dust collection hopper 16 falls into the collection box 203 under the action of gravity. After the ash discharge is completed, rotate the screw 206 in the opposite direction to move the inclined block 207 forward. The top block 205 slides down along the inner wall of the track 202 under its own weight and the action of the inclined block 207. The collection box 203 descends, and the sealing ring 208 separates from the ash discharge valve 201. The operator moves the collection box 203 out along the track 202 through the pulley 204 for dust treatment.

[0035] See attached document Figure 1 and attached Figure 2A door 21 is rotatably connected to the front of the outer wall of the dust collector 1. A door handle 22 is fixedly connected to the right side of the outer wall of the door 21, allowing the operator to easily open or close the door 21. Multiple hinges 23 are fixedly connected to the left side of the outer wall of the door 21, providing rotational support for the door 21 and ensuring smooth and stable rotation. Support legs 24 are fixedly connected to the four corners of the top of the base plate 17, supporting the negative pressure dust collector structure on the ground, ensuring the stability of the overall structure and preventing the equipment from tilting or shaking. A storage tank 25 is connected to the bottom of the inlet pipe 3. The storage tank 25 is used to temporarily store starch processing raw materials, ensuring a stable supply of materials from the source of dust-containing gas. The left side of the storage tank 25 is connected to the inlet 26, which facilitates the addition of starch processing raw materials into the storage tank 25, ensuring sufficient material in the storage tank 25. The bottom of the storage tank 25 is fixedly connected to the support 27, which supports the storage tank 25 and ensures that the storage tank 25 is placed stably. The bottom of the inner wall of the support 27 is fixedly connected to the stirring motor 28, which drives the stirring device in the storage tank 25 to prevent the starch raw materials in the storage tank 25 from clumping and ensures that the raw materials are transported evenly and stably.

[0036] Specifically, the dust collector 1's door 21, handle 22, and hinge 23 work together to facilitate equipment maintenance and operation. Operators can easily open and close the door 21 through the handle 22, and the hinge 23 ensures smooth rotation, facilitating the inspection and replacement of the internal filter element 8. The support leg 24 provides stable support for the negative pressure dust collection structure, preventing equipment shaking from affecting operation. The inlet pipe 3 is connected to the storage tank 25 to ensure a stable supply of starch processing raw materials and maintain the continuity of the dust-laden gas generation source. The feed inlet 26 facilitates raw material replenishment, ensuring sufficient material in the storage tank 25. The bracket 27 provides reliable support for the storage tank 25, and the stirring motor 28 drives the stirring device to prevent raw material agglomeration and ensure uniform raw material delivery, thereby maintaining stable dust-generating conditions. This allows the negative pressure dust collection structure to continuously and efficiently filter dust-laden gas, ultimately achieving efficient, stable, and clean production throughout the entire starch processing process.

[0037] Working Principle: When the starch processing equipment generates dust-laden gas, the fan 5 draws the gas through the outlet pipe 4, creating a negative pressure environment inside the dust collector 1. The dust-laden gas is drawn into the chamber from the left inlet pipe 3. The partition plate 6 inside the dust collector 1 divides the space into upper and lower parts. Multiple mounting seats 7 below the partition plate 6 are used to fix the filter element 8. When installing the filter element 8, the operator needs to align the rear side of the right guide post 13 of the top mounting ring 9 of the filter element 8 with the front side of the right guide block 14, and align the front side of the left guide post 13 with the rear side of the left guide block 14. At this time, the insert block 10 and the insertion port 11 are horizontally aligned. Push the mounting ring 9 vertically upward, and the insert block 10 passes through the insertion port 11 and enters the mounting seat 7, locking into the gap between the two baffles 12. Then rotate the mounting ring 9 clockwise by 90 degrees, and the guide post 13 is locked by the limiting block 15, ensuring that the filter element 8 is circumferentially fixed. At the same time, the insert block 10 pushes the baffle 12 to rotate 90 degrees synchronously on the inner wall of the mounting seat 7, so that the baffle... The bottom of the plate 12 is sealed with the insertion port 11, forming a double sealing structure to prevent dust leakage. During the dust removal process, when the dust-laden airflow passes through the filter element 8, the dust is intercepted on the outer surface of the filter element 8. The purified gas rises through the internal channel of the filter element 8 and is discharged through the outlet pipe 4. As filtration proceeds, dust gradually accumulates on the surface of the filter element 8. At this time, the top jet 18 is started, and high-pressure airflow is injected into the filter element 8 through the air pipe 19 and the nozzle 20, causing the filter element 8 to expand instantly and vibrate, shaking off the surface dust, which falls into the bottom dust collection hopper 16. When the filter element 8 needs to be replaced, the operator first turns off the fan 5 and the jet 18, rotates the mounting ring 9 counterclockwise by 90 degrees, and drives the baffle plate 12 to rotate synchronously to the open position. At this time, the insertion block 10 is re-aligned with the insertion port 11, and the mounting ring 9 is moved vertically downward. The insertion block 10 is disassembled from the mounting base 7, and the filter element 8 can be disassembled. The entire installation and disassembly process does not require tools, which improves maintenance efficiency.

[0038] Furthermore, when ash discharge is required, the operator pushes the collection box 203 along the inclined surface on the left side of the track 202. The pulley 204 at the bottom of the collection box 203 slides on the top of the track 202 until the pulley 204 is embedded in the inner wall of the groove of the track 202. At this time, the top of the collection box 203 is exactly aligned with the bottom of the ash discharge valve 201. The sealing ring 208 on the top of the collection box 203 is pre-installed in place to prepare for subsequent sealing. Then, the operator rotates the screw 206. The screw 206 rotates on the inner wall of the track 202. The inclined block 207, which is threaded to the screw 206, moves backward under the drive of the screw 206. As the inclined block 207 moves, its inclined surface gradually presses against the top block 205 on the inner wall of the track 202, causing the top block 205 to slide upward along the inner wall of the track 202. After the top block 205 contacts the bottom of the collection box 203, it continues to apply upward force, pushing the collection box 203... 03 The entire assembly is lifted upwards until the sealing ring 208 at the top of the collection box 203 is tightly fitted to the bottom outlet of the ash discharge valve 201, forming a sealed structure. At this time, the ash discharge valve 201 is opened, and the dust in the dust collection hopper 16 falls smoothly into the collection box 203 under the action of gravity. After the ash discharge is completed, the screw 206 is rotated in the opposite direction, the inclined block 207 moves forward, and the top block 205 slides down along the inner wall of the track 202 under its own weight and the release action of the inclined block 207. The collection box 203 then descends, and the sealing ring 208 disengages from the bottom of the ash discharge valve 201. The operator can slide the collection box 203 out along the track 202 through the pulley 204 to centrally process the dust in the collection box 203. The inclined design on the left side of the track 202 facilitates the pushing in and moving out of the collection box 203, and the setting of the pulley 204 reduces the friction when the collection box 203 slides.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A negative pressure dust removal structure for starch processing, comprising a dust collection box (1), multiple filter elements (8), and a base plate (17), characterized in that: The dust collector (1) has an inlet pipe (3) connected to its left side and an outlet pipe (4) connected to its right side. A fan (5) is fixedly connected to the inner wall of the outlet pipe (4). A partition plate (6) is fixedly connected to the upper middle part of the inner wall of the dust collector (1). Multiple mounting seats (7) are fixedly connected to the bottom of the partition plate (6). Mounting rings (9) are fixedly connected to the top of each of the multiple filter elements (8). Insert blocks (10) are fixedly connected to the front and rear sides of the top of each of the multiple mounting rings (9). Two insertion blocks (10) are opened on the front and rear sides of the bottom of each of the multiple mounting seats (7). The inner walls of the socket (11) and the multiple mounting bases (7) are slidably connected with baffles (12), the outer walls of the multiple mounting rings (9) are fixedly connected with guide posts (13) on the left and right sides, the bottom left and right sides of the multiple sockets (11) are fixedly connected with guide blocks (14), the bottom front and rear sides of the multiple sockets (11) are fixedly connected with limit blocks (15), the bottom of the dust collection box (1) is connected to a dust collection hopper (16), the bottom of the dust collection hopper (16) is provided with a dust removal mechanism (2), and the dust removal mechanism (2) is used to remove the falling dust.

2. The negative pressure dust removal structure for starch processing according to claim 1, characterized in that: The ash discharge mechanism (2) includes an ash discharge valve (201), the top of which is fixedly connected to the bottom of the dust collection hopper (16). The top of the base plate (17) is fixedly connected to a track (202), the top of which is slidably connected to a collection box (203), the bottom of which is fixedly connected to multiple pulleys (204). The inner wall of the track (202) is slidably connected to a top block (205), the inner wall of the track (202) is rotatably connected to a screw (206), and the outer wall of the screw (206) is threadedly connected to an inclined block (207).

3. The negative pressure dust removal structure for starch processing according to claim 2, characterized in that: The ash unloading mechanism (2) also includes a sealing ring (208), the bottom of which is fixedly connected to the top of the collection box (203), and the left side of the track (202) is tilted.

4. The negative pressure dust removal structure for starch processing according to claim 1, characterized in that: The top of the dust collection box (1) is fixedly connected to a jet engine (18), and the bottom of the jet engine (18) is connected to multiple air pipes (19), and the bottom of each of the multiple air pipes (19) is provided with multiple nozzles (20).

5. The negative pressure dust removal structure for starch processing according to claim 1, characterized in that: The dust collector (1) is rotatably connected to the front of the outer wall of the dust collector (1), and a door handle (22) is fixedly connected to the right side of the outer wall of the door (21).

6. The negative pressure dust removal structure for starch processing according to claim 5, characterized in that: Multiple hinges (23) are fixedly connected to the left side of the outer wall of the box door (21), and support legs (24) are fixedly connected to the four corners of the top of the bottom plate (17).

7. The negative pressure dust removal structure for starch processing according to claim 1, characterized in that: The bottom of the inlet pipe (3) is connected to a storage tank (25), and the left side of the storage tank (25) is connected to an inlet (26).

8. The negative pressure dust removal structure for starch processing according to claim 7, characterized in that: The bottom of the storage tank (25) is fixedly connected to a bracket (27), and the bottom of the inner wall of the bracket (27) is fixedly connected to a stirring motor (28).

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