A crusher feeding device with screening function

Abstract

The utility model relates to coal crushing feeding technology field discloses a crusher feeding device with screening function, including bottom platform, the both sides of bottom platform top are all fixedly connected with electric hydraulic cylinder no.

Description

Technical Field

[0001] This utility model relates to the field of coal crushing and feeding technology, and in particular to a crusher feeding device with screening function. Background Technology

[0002] Crusher feeding devices are important auxiliary equipment in industrial production, especially in the field of coal crushing, where they play a key role in optimizing the efficiency and effectiveness of the crushing process. By uniformly and stably conveying lumpy coal raw materials into the crushing chamber, they improve the overall performance of the crushing system and ensure that the material is processed in the best condition when it enters the crushing chamber. At the same time, optimizing the feeding device helps to improve crushing efficiency, reduce carbon emissions, and support the sustainable development of the energy industry.

[0003] During coal crushing, when the material being processed contains other impurities, the feeding device may become blocked or malfunction during transport. These impurities may include small stones, metal shavings, or other non-coal materials, which can affect the uniformity of the material in the crushing chamber and the crushing efficiency. This phenomenon not only increases the operating resistance of the equipment but may also lead to energy waste and an increase in temperature in the crushing chamber, thereby affecting the stability and service life of the overall system.

[0004] In response to this technical problem, this application proposes a crusher feeding device with screening function. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a crusher feeding device with screening function. This facilitates screening, improves the uniformity of material output, avoids impurities affecting the normal crushing effect, and effectively handles dust during screening and feeding processes, reducing dust emissions and improving the working environment.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A crusher feeding device with screening function includes a base platform. An electric hydraulic cylinder is fixedly connected to both the left and right sides of the top of the base platform. A processing chamber is fixedly connected to the drive end of each electric hydraulic cylinder. A protective shell is fixedly connected to the front left side of the processing chamber. A drive motor is fixedly connected to the inner wall of the protective shell. A filter screen is connected to the drive end of the drive motor via a screening assembly. A discharge channel is fixedly connected to the bottom rear end of the processing chamber. A conveying pipe is fixedly connected to and passes through the rear left side of the processing chamber. A dust filter chamber is connected to and passes through the left end of the conveying pipe via a dust filter assembly. A funnel is rotatably connected to the right side of the top of the processing chamber.

[0007] Furthermore, the screening component includes a connecting frame fixedly connected to the inner diameter of the left end of the filter screen frame, the left end of the connecting frame being rotatably connected to the inner wall of the processing chamber, the left and right ends of the filter screen frame being rotatably connected to the left and right sides of the inner wall of the processing chamber, and a stirring blade being sleeved on the inner wall of the connecting frame.

[0008] Furthermore, a bevel gear one is fixedly connected to the drive end of the drive motor, and a bevel gear two is fixedly connected to both the connecting frame and the left end of the stirring blade. The outer diameters of the bevel gear one and the bevel gear two are meshed.

[0009] Furthermore, the upper and lower sides of the right end of the processing chamber are rotatably connected to a closing plate, and the right end of the closing plate is fixedly connected to a handle. The inner wall of the handle is slidably connected to a pressing block, and the front and rear ends of the pressing block are rotatably connected to a traction plate. The opposite ends of the traction plate are rotatably connected to a locking block, and the outer wall of the locking block is slidably connected to the inner walls of the left and right ends of the closing plate, respectively.

[0010] Furthermore, each of the pressing blocks is fixedly connected to a return spring on its right end, and the return spring is fixedly connected to the right end of the inner wall of the handle.

[0011] Furthermore, the dust filtration assembly includes a fan installed on the outer wall of the conveying pipe, with a wind direction pipe fixedly connected to the output end of the fan, and the other end of the wind direction pipe fixedly connected to and passing through the outer wall of the conveying pipe.

[0012] Furthermore, a conical tube is fixedly connected to the inner wall of the dust filter chamber, and a spiral groove is opened on the inner wall of the conical tube. An exhaust channel is fixedly connected to and passes through the top of the dust filter chamber, and the left end of the conveying pipe is fixedly connected to and passes through the outer wall of the dust filter chamber.

[0013] Furthermore, a fixed shell is fixedly connected to the right end of the discharge channel, an electric hydraulic cylinder two is fixedly connected to the inner wall of the fixed shell, a toothed plate is fixedly connected to the drive end of the electric hydraulic cylinder two, and a feeding plate is rotatably connected to both the front and rear ends of the inner wall of the discharge channel. A driven gear is fixedly connected to the right end of each feeding plate, and the outer diameter of the driven gear meshes with the outer wall of the toothed plate.

[0014] This utility model has the following beneficial effects: 1. In this utility model, pulling the pressing block inside the handle causes the locking block to retract, opening the closing plate and exposing the filter screen frame. The funnel is then inserted into the screen frame, and the material to be crushed is fed in. After the closing plate is closed, the reset spring pushes the locking block to lock. The drive motor is then started, and the connecting frame and stirring blades are rotated through the bevel gear, causing the filter screen frame to rotate as a whole. The material rolls inside the screen frame, and the stirring blades agitate the material, promoting its full flow and facilitating screening. This improves the uniformity of material output, avoids impurities affecting the normal crushing effect, and ensures the service life of the crushing device.

[0015] 2. In this utility model, the fan is started to deliver air to the air delivery pipe, forming a negative pressure at the end of the delivery pipe, which draws in the dust in the treatment chamber. The dust-laden airflow enters the dust filter chamber along the delivery pipe and is guided by the spiral groove to flow spirally along the conical tube. The conical tube design makes the airflow form a high-speed vortex, and the centrifugal force throws the dust against the tube wall and falls into the compartment between the dust filter chamber and the conical tube. The purified airflow is discharged from the exhaust channel. This structure effectively treats the dust in the screening and feeding process, reduces dust flying, and improves the working environment. Attached Figure Description

[0016] Figure 1 This is a perspective view of a crusher feeding device with screening function proposed in this utility model; Figure 2 This is a side view of a crusher feeding device with screening function proposed in this utility model; Figure 3 This is a half-sectional view of the protective shell of a crusher feeding device with screening function proposed in this utility model; Figure 4 This is a half-sectional view of the processing chamber of a crusher feeding device with screening function proposed in this utility model; Figure 5 This is a half-sectional view of the closed plate of a crusher feeding device with screening function proposed in this utility model; Figure 6 This is a schematic diagram of the feeding plate structure of a crusher feeding device with screening function proposed in this utility model; Figure 7 This is a half-sectional view of the dust hopper of a crusher feeding device with screening function proposed in this utility model; Figure 8 This is a half-sectional view of a conical tube of a crusher feeding device with screening function proposed in this utility model.

[0017] Legend: 1. Base platform; 2. Electric hydraulic cylinder one; 3. Processing chamber; 4. Discharge channel; 5. Dust filter chamber; 6. Fan; 7. Conveying pipe; 8. Air direction pipe; 9. Exhaust channel; 10. Fixed shell; 11. Closing plate; 12. Handle; 13. Pressing block; 14. Protective shell; 15. Drive motor; 16. Bevel gear one; 17. Bevel gear two; 18. Stirring blade; 19. Connecting frame; 20. Filter screen frame; 21. Electric hydraulic cylinder two; 22. Toothed plate; 23. Discharge plate; 24. Driven gear; 25. Return spring; 26. Traction plate; 27. Clamping block; 28. Conical tube; 29. ​​Funnel. Detailed Implementation

[0018] 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.

[0019] Reference Figure 1-3 This utility model provides an embodiment of a crusher feeding device with screening function, including a base platform 1. Electric hydraulic cylinders 2 are fixedly connected to the left and right sides of the top of the base platform 1. A processing chamber 3 is fixedly connected to the drive end of the electric hydraulic cylinders 2. A protective shell 14 is fixedly connected to the front left side of the processing chamber 3. A drive motor 15 is fixedly connected to the inner wall of the protective shell 14. The drive end of the drive motor 15 is connected to a filter screen frame 20 through a screening assembly. The screening assembly includes a connecting frame 19 fixedly connected to the inner diameter of the left end of the filter screen frame 20. The left end of the connecting frame 19 is rotatably connected to the inner wall of the processing chamber 3. The left and right ends of the filter screen frame 20 are respectively rotatably connected to the left and right sides of the inner wall of the processing chamber 3. A stirring blade 18 is sleeved on the inner wall of the connecting frame 19. A bevel gear 16 is fixedly connected to the drive end of the drive motor 15. A bevel gear 17 is fixedly connected to the left end of both the connecting frame 19 and the stirring blade 18. (See reference...) Figure 4 and Figure 5 The outer diameters of bevel gear 16 and bevel gear 2 are meshed. The upper and lower sides of the right end of the processing chamber 3 are rotatably connected to a closing plate 11. The right end of the closing plate 11 is fixedly connected to a handle 12. The inner wall of the handle 12 is slidably connected to a pressing block 13. The front and rear ends of the pressing block 13 are rotatably connected to a traction plate 26. The opposite ends of the traction plate 26 are rotatably connected to a locking block 27. The outer walls of the locking blocks 27 are slidably connected to the inner walls of the left and right ends of the closing plate 11. The right end of the pressing block 13 is fixedly connected to a return spring 25. The return spring 25 is fixedly connected to the right end of the inner wall of the handle 12.

[0020] Specifically: When the operator needs to feed the material to be crushed into the filter frame 20 in the processing chamber 3, pulling the pressing block 13 inside the handle 12 installed on the upper closing plate 11 will drive the pressing block 13 to pull the traction plate 26 connected to it, thereby pulling the locking block 27 at the end of the traction plate 26 to retract inward. The retraction of the locking block 27 releases its constraint on the corresponding locking structure of the processing chamber 3, allowing the upper closing plate 11 to rotate smoothly around its hinge point on the processing chamber 3, thereby completely exposing the top feeding area of ​​the lower filter frame 20. At this time, the operator can adjust the equipped funnel 29 to a horizontally extended state, so that the output port of the funnel 29 accurately extends into the opened filter frame. Inside the internal cavity of the filter 20, the material to be processed can be smoothly conveyed to the filter frame 20 through the funnel 29 to complete the feeding. When the material is added and the processing chamber 3 needs to be closed, simply rotate the upper closing plate 11 back to its closed position on the processing chamber 3. At the moment the closing plate 11 is in place, under the action of the elastic restoring force stored in the return spring 25, it will automatically drive the pressing block 13 to move outward. The reset movement of the pressing block 13 will simultaneously push the traction plate 26, forcing the locking block 27 at the end of the traction plate 26 to extend outward, so that it can be reliably embedded in the corresponding limiting groove or abutment surface of the processing chamber 3, thereby firmly re-locking the upper closing plate 11 and ensuring the sealing and safety of the processing chamber 3 during operation.

[0021] After material loading and silo door closing are completed, the drive motor 15 is started. Its output shaft drives the bevel gear 16 directly connected to it to start rotating at high speed. The rotating bevel gear 16 effectively meshes with the vertically arranged bevel gear 17, transmitting power to the drive shaft installed through the processing silo 3. The upper end of the drive shaft is rigidly fixed with the connecting frame 19 and a set of stirring blades 18. The rotation of the bevel gear 17 drives the drive shaft and the connected connecting frame 19 and stirring blades 18 to rotate together around its axis. Since the filter screen frame 20 is fixedly installed... On this rotating connecting frame 19, the filter screen frame 20 also makes an overall circular motion under the drive of the connecting frame 19. This rotational motion forces the material contained inside the filter screen frame 20 to continuously roll and tumble. At the same time, the stirring blade 18, which rotates coaxially with the connecting frame 19, actively intervenes in the material, continuously stirring, lifting and mixing the material in motion. The rolling of the material in the filter screen frame 20 and the forced tumbling of the stirring blade 18 complement each other, thereby promoting the material to generate sufficient flow in multiple directions during the crushing pretreatment stage.

[0022] This dynamic mixing greatly increases the chances of material particles contacting and passing through the filter screen 20, allowing the material to be effectively and dynamically screened according to the preset mesh size before subsequent formal crushing. Qualified material passes through the mesh and enters the subsequent processing stage. When the screening and crushing operation is completed, if it is necessary to clean the residue, the same operation can be performed on the closed plate 11 located in the lower layer, realizing efficient and convenient material screening and residue cleaning functions.

[0023] Reference Figures 6-8 A discharge channel 4 is fixedly connected to the bottom rear end of the treatment chamber 3. A conveying pipe 7 is fixedly connected to and passes through the rear left end of the treatment chamber 3. The left end of the conveying pipe 7 is connected to and passes through a dust filter assembly. A funnel 29 is rotatably connected to the top right side of the treatment chamber 3. The dust filter assembly includes a fan 6 installed on the outer wall of the conveying pipe 7. An air direction pipe 8 is fixedly connected to the output end of the fan 6. The other end of the air direction pipe 8 is fixedly connected to and passes through the outer wall of the conveying pipe 7. A conical pipe 28 is fixedly connected to the inner wall of the dust filter chamber 5. An opening is formed in the inner wall of the conical pipe 28. The dust filter 5 has a spiral groove. An exhaust channel 9 is fixedly connected to the top of the dust filter 5 and passes through it. The left end of the conveying pipe 7 is fixedly connected to the outer wall of the dust filter 5 and passes through it. A fixed shell 10 is fixedly connected to the right end of the discharge channel 4. An electric hydraulic cylinder 21 is fixedly connected to the inner wall of the fixed shell 10. A toothed plate 22 is fixedly connected to the drive end of the electric hydraulic cylinder 21. A feeding plate 23 is rotatably connected to both the front and rear ends of the inner wall of the discharge channel 4. A driven gear 24 is fixedly connected to the right end of the feeding plate 23. The outer diameter of the driven gear 24 meshes with the outer wall of the toothed plate 22.

[0024] Specifically: When material screening or feeding operations are performed in the processing chamber 3, to prevent dust diffusion, the fan 6 fixed to the side of the base 1 is started, injecting a large amount of airflow into the airflow duct 8. When the airflow flows at high speed through the conveying pipe 7, which is orthogonally connected to the airflow duct 8, a negative pressure zone is formed at the end of the conveying pipe 7. This negative pressure effect continuously draws the dust flying in the processing chamber 3 into the conveying pipe 7. The dust-carrying airflow then enters the dust filter chamber 5 along the airflow duct 8. The key design lies in the conical tube 28 coaxially arranged inside the dust filter chamber 5: the outer wall of this tube is machined with spiral grooves, forcing the dust-containing airflow to enter the dust filter chamber 5. The dust-laden airflow moves in a spiral acceleration along the inner cavity of the conical tube 28. As the cross-section of the conical tube 28 gradually narrows from top to bottom, the high-speed rotating airflow forms an enhanced vortex in the conical contraction section. Dust particles are thrown to the inner wall of the conical tube 28 by centrifugal force, and then slide down the tube wall under the action of gravity to accumulate in the annular dust collection chamber between the conical tube 28 and the inner wall of the dust filter 5. The purified airflow is then discharged from the system through the top exhaust channel 9. This structure achieves efficient separation of air and dust through centrifugal sedimentation, significantly suppressing dust dispersion during screening and feeding processes.

[0025] After screening, the drive platform 1 is moved to the crusher feed inlet and positioned. First, the electric hydraulic cylinder 2 is activated to lift the processing chamber 3 to the preset height. Simultaneously, the electric hydraulic cylinder 21 is controlled to retract, driving the toothed plate 22 rigidly connected to it to move horizontally. The rack structure of the toothed plate 22 meshes with the driven gear 24, driving the driven gear 24 to rotate. This causes the feed plate 23 fixed to the gear shaft to deflect downward at the outlet of the discharge channel 4, forming an inclined guide surface. The screened material slides down the discharge channel 4 onto the surface of the feed plate 23 and is precisely guided into the crusher feed inlet along the inclined plate surface. The dual hydraulic collaborative mechanism realizes precise control of height adjustment and discharge angle, ensuring that the material is transferred without dust.

[0026] Working principle: When the pressing block 13 inside the handle 12 located at the upper closing plate 11 is pulled, the pressing block 13 pulls the traction plate 26, causing the locking block 27 to retract inward. This allows the closing plate 11 to rotate at the processing chamber 3, exposing one side of the filter frame 20. This allows the funnel 29 to be leveled, with one end of the funnel 29 extending into the filter frame 20, feeding the material to be crushed into the filter frame 20. After the closing plate 11 is closed again at the processing chamber 3, the elastic force of the return spring 25 causes the pressing block 13 to drive the traction plate 26, causing the locking block 27 to be squeezed out, so that the closing plate 11 closes again at the processing chamber 3. Then, the drive motor 15 is started... When the first bevel gear 16 rotates, it drives the second bevel gear 17 to transmit power to the connecting frame 19 and the stirring blade 18. This causes the connecting frame 19 to rotate, which in turn causes the filter screen frame 20 to rotate as a whole, allowing the material to roll inside the filter screen frame 20. When the stirring blade 18 rotates, it can tumble the material inside the filter screen frame 20. This allows the material to flow fully inside the filter screen frame 20, making it easier for the material to be screened. After screening, the lower closing plate 11 can be opened by the cooperation of the pressing block 13, the traction plate 26, and the locking block 27, making it easy to remove the residual material inside the filter screen frame 20. During filtration, when the fan 6 is started and a large amount of air is pumped into the airflow duct 8, the gas flow in the airflow duct 8 causes reverse gas to form at the end of the conveying pipe 7, thereby drawing in dust from the processing chamber 3. As the gas continues to flow in the airflow duct 8, the dust is discharged along the conveying pipe 7 into the dust filter chamber 5. When the dust-containing gas flows along the dust filter chamber 5, due to the spiral groove design, the dust-laden airflow spirals along the conical tube 28. Because the inner side of the conical tube 28 is entirely conical, the airflow rotates at high speed within the conical tube 28. The vortex, and due to the centrifugal force, the dusty gas is thrown towards the inner wall of the conical tube 28 and flows into the compartment between the dust filter 5 and the conical tube 28. Excess airflow can be discharged along the exhaust channel 9, which facilitates the treatment of dust during screening or feeding and reduces dust flying. When the bottom platform 1 moves to the crusher opening, the processing chamber 3 is lifted by the electric hydraulic cylinder 2, and the electric hydraulic cylinder 21 is activated to drive the toothed plate 22 to move, so that the driven gear 24 drives the feeding plate 23 to deflect, which facilitates the feeding of materials in the discharge channel 4.

[0027] 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 crusher feeding device with screening function, comprising a base platform (1), characterized in that: Electric hydraulic cylinders (2) are fixedly connected to the top left and right sides of the base (1). The driving end of the electric hydraulic cylinder (2) is fixedly connected to the processing chamber (3). The front left side of the processing chamber (3) is fixedly connected to the protective shell (14). The inner wall of the protective shell (14) is fixedly connected to the drive motor (15). The driving end of the drive motor (15) is connected to the filter frame (20) through the screening component. The bottom rear end of the processing chamber (3) is fixedly connected to the discharge channel (4). The rear left side of the processing chamber (3) is fixedly connected to the conveying pipe (7) and passes through it. The left end of the conveying pipe (7) is connected to the dust filter chamber (5) through the dust filter component and passes through it. The right side of the top of the processing chamber (3) is rotatably connected to the funnel (29).

2. The crusher feeding device with screening function according to claim 1, characterized in that: The screening component includes a connecting frame (19) fixedly connected to the inner diameter of the left end of the filter screen frame (20). The left end of the connecting frame (19) is rotatably connected to the inner wall of the processing chamber (3). The left and right ends of the filter screen frame (20) are respectively rotatably connected to the left and right sides of the inner wall of the processing chamber (3). The inner wall of the connecting frame (19) is fitted with stirring blades (18).

3. A crusher feeding device with screening function according to claim 2, characterized in that: The drive motor (15) is fixedly connected to a bevel gear one (16), and the left end of the connecting frame (19) and the stirring blade (18) are both fixedly connected to a bevel gear two (17). The outer diameter of the bevel gear one (16) and the outer diameter of the bevel gear two (17) are meshed.

4. The crusher feeding device with screening function according to claim 1, characterized in that: The processing chamber (3) is rotatably connected to both the upper and lower sides of the right end with a closing plate (11). The right end of the closing plate (11) is fixedly connected with a handle (12). The inner wall of the handle (12) is slidably connected with a pressing block (13). The front and rear ends of the pressing block (13) are rotatably connected with a traction plate (26). The opposite end of the traction plate (26) is rotatably connected with a locking block (27). The outer wall of the locking block (27) is slidably connected to the inner walls of the left and right ends of the closing plate (11).

5. A crusher feeding device with screening function according to claim 4, characterized in that: Each of the pressing blocks (13) is fixedly connected to a reset spring (25) on the right end, and the reset spring (25) is fixedly connected to the right end of the inner wall of the handle (12).

6. A crusher feeding device with screening function according to claim 1, characterized in that: The dust filter assembly includes a fan (6) installed on the outer wall of the conveying pipe (7), and a wind direction pipe (8) is fixedly connected to the output end of the fan (6). The other end of the wind direction pipe (8) is fixedly connected to the outer wall of the conveying pipe (7) and passes through it.

7. A crusher feeding device with screening function according to claim 1, characterized in that: A tapered tube (28) is fixedly connected to the inner wall of the dust filter chamber (5). A spiral groove is opened on the inner wall of the tapered tube (28). An exhaust channel (9) is fixedly connected to the top of the dust filter chamber (5) and passes through it. The left end of the conveying pipe (7) is fixedly connected to the outer wall of the dust filter chamber (5) and passes through it.

8. A crusher feeding device with screening function according to claim 1, characterized in that: The right end of the discharge channel (4) is fixedly connected to a fixed shell (10), the inner wall of the fixed shell (10) is fixedly connected to an electric hydraulic cylinder (21), the drive end of the electric hydraulic cylinder (21) is fixedly connected to a toothed plate (22), the front and rear ends of the inner wall of the discharge channel (4) are rotatably connected to a feeding plate (23), the right end of the feeding plate (23) is fixedly connected to a driven gear (24), the outer diameter of the driven gear (24) meshes with the outer wall of the toothed plate (22).

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