Mullite crushing device
By introducing an arc-shaped screen and cam mechanism into the mullite crushing device, combined with a dust collection system, the problem of filter clogging was solved, achieving efficient crushing and dust removal, and improving production efficiency and cleanliness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 山东明华新材料科技有限公司
- Filing Date
- 2025-02-21
- Publication Date
- 2026-04-28
AI Technical Summary
In existing mullite crushing devices, large-volume raw materials cannot be removed from the filter frame in a timely manner, leading to equipment blockage and affecting normal operation and crushing efficiency.
A mullite crushing device was designed, comprising a screening chamber, a crushing chamber, a feeding chamber, and a dust removal system. Through the combination of an arc-shaped screen, a cam mechanism, and a dust suction hood, the accumulated material on the screen and crushed blocks is cleaned while the equipment is running, thereby improving production efficiency and dust removal effect.
It effectively avoids screen clogging, reduces equipment downtime, improves crushing efficiency, and reduces dust pollution through segmented dust collection, thereby improving overall production efficiency and cleanliness.
Smart Images

Figure CN224167564U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mullite processing technology, specifically a mullite crushing device. Background Technology
[0002] Mullite is a high-quality refractory raw material, and this type of mineral is relatively rare. Mullite is a mineral formed from aluminosilicates at high temperatures; it forms when aluminosilicates are artificially heated. Natural mullite crystals are slender, needle-like, and arranged in radial clusters. Mullite ore is used to produce high-temperature refractory materials. Mullite used in industrial production is often processed from raw materials such as bauxite. These raw materials undergo multiple processes including crushing, wet grinding, homogenization, filtration and dehydration, extrusion, and drying, and are finally calcined to produce mullite.
[0003] For example, utility model patent CN213286951U discloses a raw material crushing device for mullite brick production, including a crushing box. A feed funnel is fixedly connected to the top of the crushing box. Two symmetrically arranged crushing plates are rotatably connected to the inner side wall of the crushing box. Two first rotating shafts are rotatably connected through the inner side wall of the crushing box. First cams are sleeved on the outer side wall of the first rotating shafts. The two first cams contact the two crushing plates respectively. When this device is in use, large raw materials in the filter frame cannot be removed in time. The filter frame is easily blocked after long-term use of the equipment, resulting in the accumulation of raw materials in the filter frame, affecting the normal operation of the equipment and reducing the crushing efficiency of the crushing device. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a mullite crushing device, which solves the problem that in existing crushing devices, large raw materials cannot be removed from the filter frame in a timely manner, and the filter frame is easily clogged after long-term use, resulting in the accumulation of raw materials in the filter frame, affecting the normal operation of the equipment, and reducing the crushing efficiency of the crushing device.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a mullite crushing device, comprising a main body, a screening chamber within the main body, a first support block within the screening chamber, two pairs of support columns on each side of the screening chamber, an mounting block movably mounted on each support column, a screening block movably mounted within the mounting block, an arc-shaped screen within the screening block, a pair of first cams within the first support block, a first connecting block rotatably mounted on each first cam, a pair of second connecting blocks movably mounted on the first support block, one end of each second connecting block rotatably mounted on the first connecting block, and the other end of each second connecting block mounted on the mounting block; a pair of protective plates are hinged to the main body in front of the screening block.
[0006] Preferably, a crushing chamber is provided inside the main body and above the screening chamber. A first crushing block is provided on the upper wall of the first support block. A pair of second cams are provided inside the crushing chamber. A fourth connecting block is rotatably provided on the second cams. A pair of fixed blocks are provided on the crushing chamber. A third connecting block is movably provided in each of the pair of fixed blocks. One end of the third connecting block is rotatably provided on the fourth connecting block. A second crushing block is provided on the other end of the third connecting block. The second crushing block is movably provided on the first crushing block.
[0007] Preferably, a feeding bin is provided inside the main body and above the crushing bin, a feeding hopper is provided on the feeding bin, a second support block is provided inside the feeding bin, a second inclined guide block is provided on the second support block and below the feeding hopper, a first inclined guide block is provided inside the feeding bin and below the second support block, a discharge hopper is provided on the lower wall of the main body, and a collection box is provided below the discharge hopper.
[0008] Preferably, the feeding hopper is provided with a dust removal channel, the upper wall of the main body is provided with a mounting frame, a fourth dust suction hood is provided on the mounting frame and above the feeding hopper, and the dust removal channel is connected to the fourth dust suction hood. A third dust suction hood is provided on the lower wall of the second support block and above the first crushing block, and the dust removal channel is connected to the third dust suction hood. A pair of second dust suction hoods are provided in the screening chamber and above the mounting block, and the dust removal channel is connected to the second dust suction hoods. A first dust suction hood is provided on the lower wall of the first connecting block and above the collection box, and the dust removal channel is connected to the first dust suction hood.
[0009] Preferably, the main body is provided with a cyclone separator, the dust removal channel is connected to the feed inlet of the cyclone separator, the discharge outlet of the cyclone separator is provided with a discharge pipe, the discharge pipe is located above the collection box, the sewage outlet of the cyclone separator is provided with a sewage pipe, the main body is provided with a bag filter, the sewage pipe is connected to the feed inlet of the bag filter, and a centrifugal fan is provided on the sewage pipe.
[0010] Preferably, a pair of support seats are provided on the lower wall surface of the main body.
[0011] Beneficial effects
[0012] The mullite pulverizing device provided by this utility model has the following beneficial effects:
[0013] When cleaning or replacing the screen blocks, this design moves the second crushing block on one side onto the first crushing block to prevent the raw materials from falling onto the corresponding screen block. The first cam on one side stops operating, and the screen block can be removed by opening the protective plate. Larger raw materials can be cleaned sequentially on the arc screen while the equipment is running, reducing the time required to start the equipment and the time required to replace the arc screen, thereby improving the production efficiency of the crushing device.
[0014] This design drives the first cam to rotate, which in turn moves the first connecting block, which in turn moves the second connecting block, causing the mounting block to reciprocate, which in turn causes the screening block to reciprocate, and consequently the arc screen to reciprocate, thus enabling the screening of production raw materials on the arc screen 37.
[0015] The fourth dust suction hood in this design is used to remove dust above the feed hopper, the third dust suction hood is used to remove dust above the first crushing block, the second dust suction hood is used to remove dust above the mounting block, and the first dust suction hood is used to remove dust above the collection box. By segmenting and adsorbing the parts of the crushing device that are prone to dust generation, the adsorption pressure can be reduced, thereby improving the dust removal effect of the crushing device. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the entire utility model.
[0017] Figure 2 This is a schematic diagram of the back of the main body of this utility model.
[0018] Figure 3 This is a schematic diagram of the front of the main body of this utility model.
[0019] Figure 4 This is a schematic diagram of the screening block of this utility model.
[0020] Figure 5 This is a schematic diagram of the mounting block of this utility model.
[0021] In the diagram: 1. Mounting frame; 2. Feed hopper; 3. Main body; 4. Feed bin; 5. First inclined guide block; 6. First crushing block; 7. Crushing bin; 8. Screening bin; 9. Support column; 10. Mounting block; 11. Screening block; 12. First connecting block; 13. First support block; 14. Support base; 15. Discharge hopper; 16. Collection box; 17. First dust suction hood; 18. First cam; 19. Second connecting block; 20. Second... 21. Dust hood; 22. Second crushing block; 23. Third connecting block; 24. Fourth connecting block; 25. Second cam; 26. Fixing block; 27. Third dust hood; 28. Second support block; 29. Second inclined guide block; 30. Fourth dust hood; 31. Centrifugal fan; 32. Sewage pipe; 33. Bag filter; 34. Cyclone separator; 35. Discharge pipe; 36. Dust removal channel; 37. Protective plate; 38. Arc-shaped screen. Detailed Implementation
[0022] 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.
[0023] Please see Figure 1-5 This utility model provides a technical solution: a mullite crushing device, including a main body 3, a screening chamber 8 is provided inside the main body 3, a first support block 13 is provided inside the screening chamber 8, two pairs of support columns 9 are respectively provided on both sides of the screening chamber 8, an installation block 10 is movably provided on the support column 9, a screening block 11 is movably provided inside the installation block 10, an arc-shaped screen 37 is provided inside the screening block 11, a pair of first cams 18 are provided inside the first support block 13, a first connecting block 12 is rotatably provided on the first cam 18, a pair of second connecting blocks 19 are movably provided on the first support block 13, one end of the second connecting block 19 is rotatably provided on the first connecting block 12, and the other end of the second connecting block 19 is provided on the installation block 10, and a pair of protective plates 36 are hinged on the main body 3 and located in front of the screening block 11;
[0024] The arc-shaped screen 37 can prevent raw materials from accumulating in the middle of the arc-shaped screen 37 and causing blockage, thereby improving the production efficiency of the crushing device.
[0025] Mounting block 10 is movably mounted on support column 9 and is used to control the direction of movement of mounting block 10;
[0026] The protective plate 36 is used to block the screening block 11 and prevent the screening block 11 from detaching from the mounting block 10 during screening. The screening block 11 can be removed by opening the protective plate 36, which makes it easier for workers to remove the large-volume production raw materials accumulated on the arc screen 37. When the crushing device is running for a long time, it can prevent large-volume production raw materials from clogging the arc screen 37, thereby improving the production efficiency of the crushing device.
[0027] The first cam 18 is driven to rotate, which in turn moves the first connecting block 12, causing the second connecting block 19 to move, which in turn moves the mounting block 10 back and forth, causing the screening block 11 to move back and forth, and in turn, causes the arc screen 37 to move back and forth, thus enabling the screening of the production raw materials on the arc screen 37.
[0028] In this embodiment, a crushing chamber 7 is provided inside the main body 3 and above the screening chamber 8. A first crushing block 6 is provided on the upper wall of the first support block 13. A pair of second cams 24 are provided inside the crushing chamber 7. A fourth connecting block 23 is rotatably provided on the second cams 24. A pair of fixing blocks 25 are provided on the crushing chamber 7. A third connecting block 22 is movably provided in each of the pair of fixing blocks 25. One end of the third connecting block 22 is rotatably provided on the fourth connecting block 23. A second crushing block 21 is provided on the other end of the third connecting block 22. The second crushing block 21 is movably provided on the first crushing block 6.
[0029] The first crushing block 6 is a triangular prism, which can divert the production raw materials falling on the first crushing block 6;
[0030] Drive the second cam 24 to rotate, which in turn moves the fourth connecting block 23, controls the third connecting block 22 to reciprocate, and drives the second crushing block 21 to reciprocate, for crushing the production raw materials between the first crushing block 6 and the second crushing block 21.
[0031] When cleaning or replacing the screen block 11, the second crushing block 21 on one side is moved onto the first crushing block 6 to prevent the raw materials on one side from falling onto the corresponding screen block 11. The first cam 18 on one side stops running. The screen block 11 can be removed by opening the protective plate 36. Larger raw materials on the arc screen 37 can be cleaned sequentially while the equipment is running, reducing the time required to start the equipment and the replacement time of the arc screen 37, thereby improving the production efficiency of the crushing device.
[0032] In this embodiment, a feeding chamber 4 is provided inside the main body 3 and above the crushing chamber 7. A feeding hopper 2 is provided on the feeding chamber 4. A second support block 27 is provided inside the feeding chamber 4. A second inclined guide block 28 is provided on the second support block 27 and below the feeding hopper 2. A first inclined guide block 5 is provided inside the feeding chamber 4 and below the second support block 27. A discharge hopper 15 is provided on the lower wall of the main body 3. A collection box 16 is provided below the discharge hopper 15.
[0033] The raw materials enter the feed bin 4 through the feed hopper 2. The movement speed of the raw materials is reduced by the second inclined guide block 28 and the first inclined guide block 5 to prevent the raw materials from directly hitting the first crushing block 6 and causing damage to the first crushing block 6.
[0034] In this embodiment, the feeding hopper 4 is provided with a dust removal channel 35, the upper wall of the main body 3 is provided with a mounting frame 1, a fourth dust suction hood 29 is provided on the mounting frame 1 and above the feeding hopper 2, and the dust removal channel 35 is connected to the fourth dust suction hood 29. A third dust suction hood 26 is provided on the lower wall of the second support block 27 and above the first crushing block 6, and the dust removal channel 35 is connected to the third dust suction hood 26. A pair of second dust suction hoods 20 are provided in the screening hopper 8 and above the mounting block 10, and the dust removal channel 35 is connected to the second dust suction hoods 20. A first dust suction hood 17 is provided on the lower wall of the first connecting block 12 and above the collection box 16, and the dust removal channel 35 is connected to the first dust suction hood 17.
[0035] The fourth dust hood 29 is used to remove dust above the feed hopper 2, the third dust hood 26 is used to remove dust above the first crushing block 6, the second dust hood 20 is used to remove dust above the mounting block 10, and the first dust hood 17 is used to remove dust above the collection box 16. By segmenting and adsorbing the parts in the crushing device that are prone to generating dust, the adsorption pressure can be reduced, thereby improving the dust removal effect of the crushing device.
[0036] In this embodiment, the main body 3 is further configured such that a cyclone separator 33 is provided on the main body 3, the dust removal channel 35 is connected to the feed inlet of the cyclone separator 33, a discharge pipe 34 is provided on the discharge outlet of the cyclone separator 33, the discharge pipe 34 is located above the collection box 16, a drain pipe 31 is provided on the drain outlet of the cyclone separator 33, a bag filter 32 is provided on the main body 3, the drain pipe 31 is connected to the feed inlet of the bag filter 32, and a centrifugal fan 30 is provided on the drain pipe 31.
[0037] The centrifugal fan 30 is driven to rotate. When the impeller rotates, it generates centrifugal force to throw air out of the impeller. After the air in the impeller is discharged, the dust removal channel 35 becomes a negative pressure channel.
[0038] The dust absorbed by the fourth dust hood 29, the third dust hood 26, the second dust hood 20 and the first dust hood 17 enters the cyclone separator 33 through the dust removal channel 35. The dust-laden gas changes from linear motion to rotational motion and moves spirally toward the cone on the lower side of the cyclone separator 33 under the influence of fluid pressure and the inner wall shape of the cyclone separator 33. During the rotation, the dust-laden gas generates centrifugal force, which causes the heavy production raw materials to overcome the airflow resistance and move toward the side wall. Once the particles come into contact with the inner wall of the cyclone separator 33, they lose inertia and slide down the wall surface under the action of gravity and the rotating fluid. The accidentally sucked production raw materials are discharged into the collection box 16 through the discharge pipe 34.
[0039] Lightweight dust enters the bag filter 32 through the drain pipe 31, is filtered and purified by the filter bags, and is trapped on the inner surface of the filter bags. The purified gas is discharged from the outlet of the bag filter 32.
[0040] In this embodiment, a pair of support seats 14 are provided on the lower wall surface of the main body 3.
[0041] Example: When the crushing device is in use, the raw materials enter the feed bin 4 through the feed hopper 2. The second inclined guide block 28 and the first inclined guide block 5 reduce the moving speed of the raw materials, preventing them from directly impacting the first crushing block 6 and causing damage. The second cam 24 is driven to rotate, which moves the fourth connecting block 23, controls the reciprocating motion of the third connecting block 22, and drives the second crushing block 21 to reciprocate, thus crushing the raw materials between the first crushing block 6 and the second crushing block 21. The first cam 18 is driven to rotate, which moves the first connecting block 12, causing the second connecting block 19 to move, which drives the mounting block 10 to reciprocate, causing the screening block 11 to reciprocate, thereby... The reciprocating motion of the arc-shaped screen 37 allows for the screening of raw materials. The screened materials are then discharged into the collection box 16 via the discharge hopper 15. During operation, the centrifugal fan 30 is driven to rotate. The impeller's rotation generates centrifugal force, ejecting air from the impeller. Once the air is expelled, the dust removal channel 35 becomes a negative pressure channel. The fourth dust hood 29 removes dust above the feed hopper 2, the third dust hood 26 removes dust above the first crushing block 6, the second dust hood 20 removes dust above the mounting block 10, and the first dust hood 17 removes dust above the collection box 16. This segmented adsorption of dust-prone areas within the crushing device reduces dust accumulation. The pressure enhances the dust removal efficiency of the crushing device. Dust absorbed by the fourth dust hood 29, third dust hood 26, second dust hood 20, and first dust hood 17 enters the cyclone separator 33 through the dust removal channel 35. The dust-laden gas changes from linear motion to rotational motion and, under the influence of fluid pressure and the shape of the inner wall of the cyclone separator 33, spirals towards the cone on the lower side of the cyclone separator 33. During rotation, the dust-laden gas generates centrifugal force, causing the heavier raw materials to overcome airflow resistance and move towards the side wall. Once the particles come into contact with the inner wall of the cyclone separator 33, they lose inertia and slide down the wall surface under the influence of gravity and the rotating fluid. The accidentally sucked raw materials are discharged into the collection box 16 through the discharge pipe 34. Lightweight dust enters the bag filter 32 through the drain pipe 31. After being filtered and purified by the filter bags, the dust is trapped on the inner surface of the filter bags. The purified gas is discharged from the outlet of the bag filter 32. When cleaning or replacing the screening block 11, the second crushing block 21 on one side is moved onto the first crushing block 6 to prevent the production raw materials on one side from falling onto the corresponding screening block 11. The first cam 18 on one side stops running. The screening block 11 can be removed by opening the protective plate 36. Larger production raw materials on the arc screen 37 can be cleaned sequentially while the equipment is running, reducing the time required to start the equipment and the replacement time of the arc screen 37, thereby improving the production efficiency of the crushing device.
[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A mullite crushing device, comprising a main body (3), characterized in that, The main body (3) is provided with a screening chamber (8), and a first support block (13) is provided in the screening chamber (8). Two pairs of support columns (9) are provided on both sides of the screening chamber (8). An installation block (10) is movably provided on the support column (9). A screening block (11) is movably provided in the installation block (10). An arc-shaped screen (37) is provided in the screening block (11). A pair of first cams (18) are provided in the first support block (13). A first connecting block (12) is rotatably provided on the first cam (18). A pair of second connecting blocks (19) are movably provided on the first support block (13). One end of the second connecting block (19) is rotatably provided on the first connecting block (12). The other end of the second connecting block (19) is provided on the installation block (10). A pair of protective plates (36) are hinged on the main body (3) and located in front of the screening block (11).
2. The mullite crushing device according to claim 1, characterized in that, A crushing chamber (7) is provided inside the main body (3) and above the screening chamber (8). A first crushing block (6) is provided on the upper wall of the first support block (13). A pair of second cams (24) are provided inside the crushing chamber (7). A fourth connecting block (23) is rotatably provided on the second cams (24). A pair of fixing blocks (25) are provided on the crushing chamber (7). A third connecting block (22) is movably provided in each of the pair of fixing blocks (25). One end of the third connecting block (22) is rotatably provided on the fourth connecting block (23). A second crushing block (21) is provided on the other end of the third connecting block (22). The second crushing block (21) is movably provided on the first crushing block (6).
3. The mullite crushing device according to claim 2, characterized in that, A feeding chamber (4) is provided inside the main body (3) and above the crushing chamber (7). A feeding hopper (2) is provided on the feeding chamber (4). A second support block (27) is provided inside the feeding chamber (4). A second inclined guide block (28) is provided on the second support block (27) and below the feeding hopper (2). A first inclined guide block (5) is provided inside the feeding chamber (4) and below the second support block (27). A discharge hopper (15) is provided on the lower wall of the main body (3). A collection box (16) is provided below the discharge hopper (15).
4. The mullite crushing device according to claim 3, characterized in that, A dust removal channel (35) is provided on the feeding hopper (4). An installation frame (1) is provided on the upper wall of the main body (3). A fourth dust suction hood (29) is provided on the installation frame (1) and above the feeding hopper (2). The dust removal channel (35) is connected to the fourth dust suction hood (29). A third dust suction hood (26) is provided on the lower wall of the second support block (27) and above the first crushing block (6). The dust removal channel (35) is connected to the third dust suction hood (26). A pair of second dust suction hoods (20) are provided in the screening hopper (8) and above the installation block (10). The dust removal channel (35) is connected to the second dust suction hoods (20). A first dust suction hood (17) is provided on the lower wall of the first connecting block (12) and above the collection box (16). The dust removal channel (35) is connected to the first dust suction hood (17).
5. A mullite crushing device according to claim 4, characterized in that, A cyclone separator (33) is provided on the main body (3). The dust removal channel (35) is connected to the feed inlet of the cyclone separator (33). A discharge pipe (34) is provided on the discharge outlet of the cyclone separator (33). The discharge pipe (34) is located above the collection box (16). A drain pipe (31) is provided on the drain outlet of the cyclone separator (33). A bag filter (32) is provided on the main body (3). The drain pipe (31) is connected to the feed inlet of the bag filter (32). A centrifugal fan (30) is provided on the drain pipe (31).
6. The mullite crushing device according to claim 5, characterized in that, A pair of support seats (14) are provided on the lower wall surface of the main body (3).
Citation Information
Patent Citations
Raw material crushing device for mullite brick production
CN213286951U