Anti-blocking conical discharge screening device
By setting an adjustment structure and connecting rod system in the partition plate of the tube mill, the size of the screen gap between the guide plate and the arc plate can be dynamically adjusted, which solves the problem of the non-adjustable screen gap in the existing technology and realizes efficient screening with adjustable material fineness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- JIANGSU HAIJIAN
- Filing Date
- 2024-11-01
- Publication Date
- 2026-05-29
AI Technical Summary
In the existing technology, tube mills cannot flexibly adjust the size of the screen openings according to the fineness of the material during the screening process, resulting in low screening efficiency.
A conical anti-clogging discharge screening device was designed. By setting an adjustment structure in the compartment, the size of the screen gap can be adjusted by using the guide plate and the arc plate. Combined with the telescopic component and the linkage system driven by the micro motor, the screen gap can be dynamically adjusted.
It enables flexible screening based on the fineness of materials, improving screening efficiency and flexibility, and adapting to the screening needs of different materials.
Smart Images
Figure CN119565729B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of material screening technology, and in particular to a cone-shaped anti-clogging discharge screening device. Background Technology
[0002] A tube mill is a type of grinding equipment. During the grinding process, coarse powder and fine powder are separated by a fine screen plate under the pressure of the material being pushed forward. However, if the coarse powder and fine powder are not separated in time, the fine powder in the material will be over-grinded and the coarse material will be crushed in low efficiency. The tube mill is equipped with partition plates inside the tube mill cylinder, which separate the material when the tube mill is rotating.
[0003] In the prior art, patent CN203124046U discloses a partition plate for a tube mill, which includes an assembled feed end grate, a support frame, an discharge end grate, a coarse and fine material separator, and a central fine screen plate. Multiple fan-shaped feed end grates and discharge end grates are fixed on the support frame to form a disc structure. The coarse and fine material separator and the central fine screen plate are installed in the center of the disc structure. The partition plate also includes a fine screen plate and a gravity screening frame. The support frame includes a support body and a support plate. The support plate includes a front plate fixed to the feed end grate and a rear plate fixed to the fine screen plate and the discharge end grate. The front plate and the rear plate are respectively located at both ends of the support body. The front plate and the fine screen plate form a compartment.
[0004] The above structure can screen materials thoroughly and quickly. However, inside the tube mill, the coarseness of the materials varies. When it is necessary to screen materials of different sizes, the size of the screen opening cannot be changed. Summary of the Invention
[0005] In view of this, the purpose of this invention is to propose a conical anti-clogging discharge screening device to solve the problem that when different materials have different degrees of coarseness inside a tube mill, it is impossible to change the screen gap size for screening when different coarse materials need to be screened.
[0006] To achieve the above objectives, the present invention provides a conical anti-clogging discharge screening device, including a partition plate installed inside a tube mill. A central screen plate is provided at the center of the partition plate. The partition plate includes multiple outlet supports arranged in a ring. A discharge screen plate is fixedly installed on one side of each of the multiple outlet supports. A discharge grate is installed on the discharge screen plate. The central screen plate is fixedly installed on the multiple discharge grates. A pressure plate is fixedly installed on the other side of the central screen plate.
[0007] An inclined plate is fixedly installed at the inner corner of the outlet support, and a guide plate is movably installed on one side of the inner wall of the outlet support. An arc plate is provided at the end of the guide plate, and the bottom end of the arc plate is movably connected to the inner wall of the outlet support. The inclined plate, guide plate and arc plate between two adjacent sets of outlet supports form a screening ramp. There is a screening gap between the guide plate and the arc plate. An adjustment structure is provided inside the outlet support. The adjustment structure is used to change the size of the screening gap between the guide plate and the arc plate.
[0008] Each of the multiple outlet supports is equipped with an inclined unloading plate at its bottom end. The multiple unloading plates are combined to form an unloading cone, and a material leakage gap is provided inside the unloading cone.
[0009] Preferably, the unloading plate is provided with a telescopic component inside, and the adjustment structure is connected to the telescopic component. The telescopic component is used to control the leakage gap between adjacent unloading plates.
[0010] Preferably, the adjustment structure includes a housing fixedly installed inside the outlet bracket, and a lever one and a lever two are provided inside the housing. The ends of the lever one and the lever two are hinged to each other. The top of the lever one abuts against the guide plate, and the top of the lever two abuts against the arc plate.
[0011] A micro motor is fixedly installed inside the housing. A turntable is fixedly installed at the output end of the micro motor. Two sets of connecting rods are movably installed on the turntable. The ends of the connecting rods are movably connected to contact rods. A fixed seat is slidably installed on the outside of the contact rods. The fixed seat is fixedly installed inside the outlet bracket. The opposite ends of the two sets of contact rods abut against lever one and lever two, respectively.
[0012] Preferably, the housing has a reserved opening on the side near the inclined plate and the arc plate, and lever one and lever two pass through the reserved opening and abut against the inclined plate and the arc plate respectively.
[0013] Preferably, the two sets of contact rods are arranged in a mirror-symmetrical manner with respect to the center of the housing, and the two sets of connecting rods are arranged in parallel and corresponding manner.
[0014] Preferably, the telescopic component includes a support column and a sleeve respectively movably connected between lever one and lever two. The support column is slidably connected inside the sleeve. The sleeve is provided with a contact switch corresponding to the support column. When the sleeve and the support column are compressed to their shortest length, the contact switch is activated.
[0015] Sub-plates are slidably installed on both sides of the unloading plate. Semicircular blocks are fixedly installed on the inner side of the sub-plates. Lifting rods are provided between adjacent semicircular blocks. Iron rods are fixedly installed at the top of the lifting rods. The iron rods are slidably installed on the inner wall of the unloading plate. An electromagnet corresponding to the iron rod is provided inside the unloading plate. The electromagnets are electrically connected to a contact switch.
[0016] Preferably, a spring connects adjacent sub-plates, both the sub-plates and the unloading plate are fan-shaped structures, the lifting rod is V-shaped, and both sides of the lifting rod abut against the semi-circular block.
[0017] Preferably, the outlet support, the outlet screen plate, and the outlet grate plate are arranged correspondingly, and a threaded column is provided through the outlet screen plate, the outlet grate plate, and the outlet support.
[0018] The beneficial effects of the present invention are as follows: the material ground in the partition plate of the tube mill enters the discharge screen plate through the discharge grate. As the tube mill rotates, it is lifted and guided. The material falls into the outlet support in the partition plate through the discharge screen plate. After preliminary screening by the discharge screen plate, the fine material rolls down through the inclined plate, guide plate and arc plate formed by the adjacent outlet support. Some of the fine material falls onto the discharge cone of the discharge plate assembly through the gap between the guide plate and the arc plate. It then falls into the central screen plate through the leakage gap of the discharge cone.
[0019] Coarse material that does not pass through the screen gap between the guide plate and the arc plate flows along the inclined surface of the discharge cone to the other side of the compartment plate. When it is necessary to screen materials of different sizes, the size of the screen gap between the guide plate and the arc plate is changed. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a three-dimensional structural diagram of the entire invention;
[0022] Figure 2 This is a rear view schematic diagram of the overall structure of the present invention;
[0023] Figure 3 This is a schematic diagram of the overall exploded structure of the present invention;
[0024] Figure 4 This is a three-dimensional structural diagram of the outlet bracket of the present invention;
[0025] Figure 5 This is a front view structural diagram of the compartment tray of the present invention;
[0026] Figure 6 This is a schematic diagram of the internal structure of the adjustment structure of the present invention;
[0027] Figure 7 For the present invention Figure 6Enlarged structural diagram at point A;
[0028] Figure 8 For the present invention Figure 6 A magnified structural diagram at point B in the middle.
[0029] The components in the diagram are labeled as follows: 1. Compartment plate; 2. Central screen plate; 3. Pressure plate; 4. Discharge screen plate; 5. Discharge grate plate; 6. Outlet support; 7. Adjustment structure; 71. Housing; 72. Lever 1; 73. Lever 2; 74. Fixed base; 75. Turntable; 76. Micro motor; 77. Connecting rod; 78. Contact rod; 8. Discharge plate; 9. Inclined plate; 10. Guide plate; 11. Arc plate; 12. Threaded column; 13. Support column; 14. Sleeve; 15. Contact switch; 16. Sub-plate; 17. Semicircular block; 18. Lifting rod; 19. Iron rod; 20. Electromagnet; 21. Telescopic component. Detailed Implementation
[0030] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments.
[0031] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the conical anti-clogging discharge screening device includes a partition plate 1 installed inside the tube mill. A central screen plate 2 is provided at the center of the partition plate 1. The partition plate 1 includes multiple outlet supports 6, which are arranged in a ring. A discharge screen plate 4 is fixedly installed on one side of each of the multiple outlet supports 6. A discharge grate plate 5 is installed on the discharge screen plate 4. The central screen plate 2 is fixedly installed on the multiple discharge grates 5. A pressure plate 3 is fixedly installed on the other side of the central screen plate 2.
[0032] An inclined plate 9 is fixedly installed at the inner corner of the outlet support 6, and a guide plate 10 is movably installed on one side of the inner wall of the outlet support 6. An arc plate 11 is provided at the end of the guide plate 10, and the bottom end of the arc plate 11 is movably connected to the inner wall of the outlet support 6. The inclined plate 9, guide plate 10 and arc plate 11 between two adjacent sets of outlet supports 6 form a screening ramp. There is a screening gap between the guide plate 10 and the arc plate 11. An adjustment structure 7 is provided inside the outlet support 6. The adjustment structure 7 is used to change the size of the screening gap between the guide plate 10 and the arc plate 11.
[0033] Each of the multiple outlet supports 6 has an inclined unloading plate 8 installed at its bottom. The multiple unloading plates 8 are combined to form an unloading cone, and a material leakage gap is provided inside the unloading cone.
[0034] In this embodiment, the partition plate 1 is installed inside the tube mill. The material already ground in one side of the partition plate 1 enters the discharge screen plate 4 through the discharge grate 5. As the tube mill rotates, it is lifted and guided. The material falls into the outlet support 6 inside the partition plate 1 through the discharge screen plate 4. After preliminary screening by the discharge screen plate 4, the fine material rolls down through the inclined plate 9, guide plate 10 and arc plate 11 between adjacent outlet supports 6 to form a screening ramp. Some of the fine material falls onto the discharge cone composed of the discharge plate 8 through the gap between the guide plate 10 and the arc plate 11. It falls into the central screen plate 2 through the leakage gap of the discharge cone. The coarse material that does not pass through the gap between the guide plate 10 and the arc plate 11 flows along the inclined surface of the discharge cone to the other side of the partition plate 1. When it is necessary to screen materials of different coarseness, the screening is carried out by changing the size of the gap between the guide plate 10 and the arc plate 11.
[0035] As one implementation method, such as Figure 6 As shown, the unloading plate 8 is provided with a telescopic component 21 inside. The adjustment structure 7 is connected to the telescopic component 21. The telescopic component 21 is used to control the material leakage gap between adjacent unloading plates 8.
[0036] In this embodiment, the material leakage gap between adjacent unloading plates 8 is controlled by the telescopic component 21, which corresponds to changing the size of the sieve gap between the guide plate 10 and the arc plate 11, thereby realizing the screening of materials of different coarseness and fineness.
[0037] As one implementation method, such as Figure 1 , Figure 2 , Figure 7 and Figure 8 As shown, the adjustment structure 7 includes a housing 71 fixedly installed inside the outlet bracket 6. Inside the housing 71, there are two levers: a first lever 72 and a second lever 73. The ends of the first lever 72 and the second lever 73 are hinged to each other. The top of the first lever 72 abuts against the guide plate 10, and the top of the second lever 73 abuts against the arc plate 11.
[0038] A micro motor 76 is fixedly installed inside the housing 71. A turntable 75 is fixedly installed at the output end of the micro motor 76. Two sets of connecting rods 77 are movably installed on the turntable 75. A contact rod 78 is movably connected to the end of the connecting rod 77. A fixed seat 74 is slidably installed on the outside of the contact rod 78. The fixed seat 74 is fixedly installed in the outlet bracket 6. The opposite ends of the two sets of contact rods 78 abut against lever 1 72 and lever 2 73 respectively.
[0039] In this embodiment, when it is necessary to screen materials of different coarseness, the micro motor 76 drives the turntable 75 to rotate inside the housing 71. When the turntable 75 rotates, it drives the connecting rod 77 to move. The connecting rod 77 drives the contact rod 78 to slide inside the fixed seat 74. The two sets of connecting rods 77 respectively move the first lever 72 and the second lever 73 away from each other or closer to each other. When the first lever 72 and the second lever 73 abut against the guide plate 10 and the arc plate 11, the gap between the guide plate 10 and the arc plate 11 changes, thereby realizing the screening of materials of different coarseness.
[0040] As one implementation method, such as Figure 4 , Figure 5 and Figure 6 As shown, a reserved opening is provided on the side of the housing 71 near the inclined plate 9 and the arc plate 11. The first lever 72 and the second lever 73 pass through the reserved opening and abut against the inclined plate 9 and the arc plate 11 respectively.
[0041] In this embodiment, lever 72 and lever 73 correspond to guide plate 10 and arc plate 11, and connecting rod 77 moves lever 72 and lever 73 away from or towards each other, thereby changing the size of the screen gap between guide plate 10 and arc plate 11.
[0042] As one implementation method, such as Figure 4 , Figure 5 and Figure 6 As shown, the two sets of contact rods 78 are arranged in a mirror symmetrical manner with reference to the center of the housing 71, and the two sets of connecting rods 77 are arranged in parallel and corresponding manner.
[0043] In this embodiment, the contact rod 78 is driven by the connecting rod 77, so that the contact rod 78 slides inside the fixed base 74, and can synchronously drive the first lever 72 and the second lever 73 to move.
[0044] As one implementation method, such as Figure 6 , Figure 7 and Figure 8 As shown, the telescopic component 21 includes a support column 13 and a sleeve 14 that are movably connected between lever 1 72 and lever 2 73 respectively. The support column 13 is slidably connected inside the sleeve 14. The sleeve 14 is provided with a contact switch 15 corresponding to the support column 13. When the sleeve 14 and the support column 13 are compressed to their shortest length, they abut against the contact switch 15.
[0045] A secondary plate 16 is slidably installed on both sides of the unloading plate 8. A semi-circular block 17 is fixedly installed on the inner side of the secondary plate 16. A lifting rod 18 is provided between adjacent semi-circular blocks 17. An iron rod 19 is fixedly installed at the top of the lifting rod 18. The iron rod 19 is slidably installed on the inner wall of the unloading plate 8. An electromagnet 20 corresponding to the iron rod 19 is provided inside the unloading plate 8. The electromagnet 20 is electrically connected to the contact switch 15.
[0046] Among them, a spring connects the adjacent sub-plates 16, both the sub-plates 16 and the unloading plate 8 are fan-shaped structures, the lifting rod 18 is set with a V-shaped structure, and both sides of the lifting rod 18 abut against the semi-circular block 17.
[0047] In this embodiment, the gap between the sub-plates 16 corresponds to the screen gap. The support column 13 moves within the sleeve 14 until it presses the contact switch 15, activating the current inside the electromagnet 20. The current generated by the electromagnet 20 attracts the iron rod 19 upward, which in turn moves the V-shaped lifting rod 18 upward. The lifting rod 18 contacts the semi-circular block 17, and under the action of the spring, pulls the adjacent sub-plates 16 to move inside the discharge plate 8, thereby narrowing the screen gap between the adjacent sub-plates 16. This allows some fine material to fall through the gap between the guide plate 10 and the arc-shaped plate 11 onto the discharge cone assembled with the discharge plate 8.
[0048] As one implementation method, such as Figure 1 , Figure 2 , Figure 3 As shown, the outlet support 6, the discharge screen plate 4 and the discharge grate plate 5 are arranged in a corresponding manner, and a threaded column 12 is provided through the discharge screen plate 4, the discharge grate plate 5 and the outlet support 6.
[0049] In this embodiment, multiple outlet supports 6, discharge screen plates 4 and discharge grate plates 5 are installed in a circular array, which facilitates disassembly and reassembly. When internal maintenance and cleaning are required, each outlet support 6, discharge screen plate 4 and discharge grate plate 5 can be disassembled and cleaned.
[0050] Working principle: During use, the partition plate 1 is installed inside the tube mill. The material that has been ground in the partition plate 1 enters the discharge screen plate 4 through the discharge grate 5. As the tube mill rotates, it is lifted and guided. The material falls into the outlet support 6 inside the partition plate 1 through the discharge screen plate 4. After preliminary screening by the discharge screen plate 4, the fine material rolls down through the inclined plate 9, guide plate 10 and arc plate 11 between adjacent outlet supports 6 to form a screening ramp. Some of the fine material falls onto the discharge cone composed of the discharge plate 8 through the gap between the guide plate 10 and the arc plate 11. It falls into the central screen plate 2 through the leakage gap of the discharge cone. The coarse material that does not pass through the gap between the guide plate 10 and the arc plate 11 flows to the other side of the partition plate 1 along the inclined surface of the discharge cone.
[0051] When it is necessary to screen materials of different coarseness, the micro motor 76 drives the turntable 75 to rotate inside the housing 71. When the turntable 75 rotates, it drives the connecting rod 77 to move. The connecting rod 77 drives the contact rod 78 to slide inside the fixed seat 74. The two sets of connecting rods 77 respectively move the first lever 72 and the second lever 73 away from each other or closer to each other. When the first lever 72 and the second lever 73 abut against the guide plate 10 and the arc plate 11, the gap between the guide plate 10 and the arc plate 11 changes, thereby realizing the screening of materials of different coarseness.
[0052] When the gap between the guide plate 10 and the arc plate 11 changes, the two sets of connecting rods 77 respectively move the lever 72 and the lever 73 closer to each other, and the gap between the guide plate 10 and the arc plate 11 reaches its minimum. The support column 13 moves in the sleeve 14 until it squeezes the contact switch 15, connecting the current inside the electromagnet 20. The current generated by the electromagnet 20 attracts the iron rod 19 to move upward. The iron rod 19 drives the lifting rod 18 of the V structure to move upward. The lifting rod 18 contacts the semi-circular block 17 and pulls the adjacent sub-plate 16 to move inside the discharge plate 8 under the action of the spring, thereby narrowing the screen gap between the adjacent sub-plates 16. This allows some fine material to fall through the gap between the guide plate 10 and the arc plate 11 onto the discharge cone of the discharge plate 8 assembly, and fall into the central screen plate 2 through the leakage gap of the discharge cone. The coarse material that does not pass through the gap between the guide plate 10 and the arc plate 11 flows along the inclined surface of the discharge cone to the other side of the compartment plate 1.
[0053] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention (including the claims) is limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in the details for the sake of brevity.
[0054] This invention is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of protection of this invention.
Claims
1. A conical anti-clogging discharge screening device, comprising a partition plate (1) installed inside a tube mill, wherein a central screen plate (2) is provided at the center of the partition plate (1), characterized in that, The compartment tray (1) includes multiple outlet supports (6), which are arranged in a ring. A discharge screen plate (4) is fixedly installed on one side of each of the multiple outlet supports (6). A discharge grate plate (5) is installed on the discharge screen plate (4). A central screen plate (2) is fixedly installed on the multiple discharge grate plates (5). A pressure plate (3) is fixedly installed on the other side of the central screen plate (2). An inclined plate (9) is fixedly installed at the inner corner of the outlet support (6), and a guide plate (10) is movably installed on one side of the inner wall of the outlet support (6). An arc plate (11) is provided at the end of the guide plate (10), and the bottom end of the arc plate (11) is movably connected to the inner wall of the outlet support (6). The inclined plate (9), guide plate (10) and arc plate (11) between two adjacent sets of outlet supports (6) form a screening ramp. There is a screening gap between the guide plate (10) and the arc plate (11). An adjustment structure (7) is provided inside the outlet support (6). The adjustment structure (7) is used to change the size of the screening gap between the guide plate (10) and the arc plate (11). Each of the multiple outlet brackets (6) is equipped with an inclined unloading plate (8) at its bottom end. The multiple unloading plates (8) are combined to form an unloading cone, and a material leakage gap is provided inside the unloading cone. The adjustment structure (7) includes a housing (71) fixedly installed inside the outlet bracket (6). Inside the housing (71) are a lever one (72) and a lever two (73). The ends of the lever one (72) and the lever two (73) are hinged to each other. The top of the lever one (72) abuts against the guide plate (10), and the top of the lever two (73) abuts against the arc plate (11). The unloading plate (8) is provided with a telescopic component (21) inside. The adjustment structure (7) is connected to the telescopic component (21). The telescopic component (21) is used to control the leakage gap between adjacent unloading plates (8). The telescopic component (21) includes a support column (13) and a sleeve (14) that are movably connected between lever one (72) and lever two (73) respectively. The support column (13) is slidably connected inside the sleeve (14). The sleeve (14) is provided with a contact switch (15) corresponding to the support column (13). When the sleeve (14) and the support column (13) are compressed to their shortest length, they abut against the contact switch (15). A secondary plate (16) is slidably installed on both sides of the unloading plate (8). A semi-circular block (17) is fixedly installed on the inner side of the secondary plate (16). A lifting rod (18) is provided between adjacent semi-circular blocks (17). An iron rod (19) is fixedly installed at the top of the lifting rod (18). The iron rod (19) is slidably installed on the inner wall of the unloading plate (8). An electromagnet (20) corresponding to the iron rod (19) is provided inside the unloading plate (8). The electromagnet (20) is electrically connected to the contact switch (15).
2. The cone-shaped anti-clogging discharge screening device according to claim 1, characterized in that, A micro motor (76) is fixedly installed inside the housing (71). A turntable (75) is fixedly installed at the output end of the micro motor (76). Two sets of connecting rods (77) are movably installed on the turntable (75). A contact rod (78) is movably connected to the end of the connecting rod (77). A fixed seat (74) is slidably installed on the outside of the contact rod (78). The fixed seat (74) is fixedly installed inside the outlet bracket (6). The two sets of contact rods (78) are respectively in contact with lever one (72) and lever two (73).
3. The cone-shaped anti-clogging discharge screening device according to claim 1, characterized in that, The housing (71) has a reserved opening on the side near the inclined plate (9) and the arc plate (11). The lever one (72) and lever two (73) pass through the reserved opening and abut against the inclined plate (9) and the arc plate (11) respectively.
4. The cone-shaped anti-clogging discharge screening device according to claim 2, characterized in that, The two sets of contact rods (78) are arranged in a mirror symmetrical manner with respect to the center of the housing (71), and the two sets of connecting rods (77) are arranged in parallel and corresponding manner.
5. The conical anti-clogging discharge screening device according to claim 1, characterized in that, A spring is connected between adjacent sub-plates (16). Both the sub-plates (16) and the unloading plate (8) are fan-shaped structures. The lifting rod (18) is V-shaped. Both sides of the lifting rod (18) abut against the semi-circular block (17).
6. The cone-shaped anti-clogging discharge screening device according to claim 1, characterized in that, The outlet support (6), the discharge screen plate (4) and the discharge grate plate (5) are arranged in a corresponding manner, and a threaded column (12) is provided through the discharge screen plate (4), the discharge grate plate (5) and the outlet support (6).