Raw material screening device for concrete production and processing
By designing a concrete raw material screening device with vibration components and linkage components, the problem of cement being prone to agglomeration during screening is solved, resulting in incomplete screening, and a more efficient cement screening effect is achieved.
Patent Information
- Application Number
- CN202421713601.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-19
- Publication Date
- 2025-06-03
- Estimated Expiration
- 2034-07-19
AI Technical Summary
The existing concrete raw material screening device is prone to incomplete screening due to agglomeration when screening cement, which reduces the screening effect of cement.
A raw material screening device for concrete production and processing is designed, using vibrating components to drive the vibration of the mesh frame and screen, and the linkage components drive the movement of the crushing rollers to crush the agglomerated cement to achieve more thorough screening.
Through the coordination of vibration and crushing rollers, the screening effect of cement is significantly improved, the incomplete screening problem caused by cement agglomeration is avoided, and the overall screening efficiency is improved.
Smart Images
Figure CN222931260U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of concrete production, and in particular to a raw material screening device for concrete production and processing. Background Art
[0002] Concrete refers to the general term for engineering composite materials formed by mixing cement, sand, stones, etc. with water. Before concrete production and processing, it is necessary to screen the raw materials.
[0003] In the prior art, when screening concrete raw materials, the concrete raw materials are generally screened through a sieve mesh. However, for powdery raw materials such as cement, the cement is prone to caking due to reasons such as moisture. In this way, during screening, the cement is likely to cause incomplete screening due to caking, reducing the screening effect of the cement. Therefore, those skilled in the art have provided a raw material screening device for concrete production and processing to solve the problems raised in the above background art. Summary of the Utility Model
[0004] In order to solve the problems raised in the above background art, the present application provides a raw material screening device for concrete production and processing.
[0005] The raw material screening device for concrete production and processing provided by the present application adopts the following technical solutions:
[0006] A raw material screening device for concrete production and processing includes a screening box. Guide plates are inclined and fixed on both sides of the inner wall of the screening box. A wire frame is movably arranged in the screening box and is located below the guide plates. A vibration assembly for driving the movement of the wire frame is arranged in the screening box. A sieve mesh is fixed in the wire frame. Two U-shaped frames are slidably arranged at the top end of the sieve mesh. Crushing rollers are rotatably connected to the bottom ends of the two U-shaped frames. A linkage assembly for driving the movement of the U-shaped frames is arranged at the bottom end of the guide plates.
[0007] By adopting the above technical solutions, through the vibration of the vibration assembly driving the wire frame and the sieve mesh, and at the same time, with the cooperation of the linkage assembly, the movement of the crushing rollers can be driven, which is convenient for crushing the caked cement, facilitating the full screening of the cement, and improving the screening effect of the cement.
[0008] Preferably, the vibration assembly includes first sliders fixedly arranged on both sides of the wire frame. First chutes for the first sliders to slide are opened on both sides of the inner wall of the screening box. Both of the first chutes are fixedly connected to the first sliders through springs. A cam in contact with the wire frame is rotatably connected in the screening box. A first driving motor fixed to the cam is fixed on one side of the screening box.
[0009] By adopting the above technical solutions, through the cooperation of the vibration assembly, it is convenient to drive the continuous vibration of the wire frame and the sieve mesh, facilitating the screening of the cement.
[0010] Preferably, the linkage assembly includes second sliders fixedly arranged at the ends of two U-shaped frames respectively. Second sliding grooves for the second sliders to slide are formed on both sides of the inner wall of the mesh frame. Connecting rods hinged to the material guiding plate are hinged to the tops of the two U-shaped frames respectively.
[0011] By adopting the above technical solution, through the cooperation of the linkage assembly, it is convenient to drive the movement of the crushing roller.
[0012] Preferably, a feed hopper is communicated with the top end of the screening box. Two cover plates are slidably arranged at the top end of the feed hopper. The cover plates are connected with the screening box through a sliding assembly. An opening and closing assembly for driving the movement of the cover plates is arranged at the top end of the screening box.
[0013] By adopting the above technical solution, through the driving of the opening and closing assembly for the movement of the cover plates, it is convenient to block the feed hopper, avoid the leakage of dust through the feed hopper during the screening of cement, facilitate the screening of cement, and improve the screening efficiency of cement.
[0014] Preferably, the sliding assembly includes a support plate fixedly arranged at the bottom end of the cover plate. A third slider is fixed at the bottom end of the support plate. A third sliding groove for the third slider to slide is formed at the top end of the screening box.
[0015] By adopting the above technical solution, through the cooperation of the sliding assembly, it is convenient to support the cover plate and maintain the stability of the movement of the cover plate.
[0016] Preferably, the opening and closing assembly includes moving rods fixedly arranged at the bottom ends of the two cover plates respectively. Fourth sliders are fixed at the bottom ends of the two moving rods respectively. A fourth sliding groove for the fourth sliders to slide is formed at the top end of the screening box. A bidirectional lead screw threadedly connected with the fourth sliders is rotatably connected in the fourth sliding groove. A second driving motor fixed to the bidirectional lead screw is fixed on one side of the screening box.
[0017] By adopting the above technical solution, through the cooperation of the opening and closing assembly, it is convenient to drive the movement of the cover plates.
[0018] In summary, the present application includes the following beneficial technical effects:
[0019] 1. For the raw material screening device for concrete production and processing, when the cement falls onto the screen in the mesh frame, under the movement of the vibration assembly, it drives the continuous up-and-down vibration of the mesh frame. The mesh frame drives the continuous up-and-down vibration of the screen to screen the cement. At the same time, under the cooperation of the linkage assembly, it drives the horizontal movement of the U-shaped frame. The U-shaped frame drives the horizontal movement of the crushing roller. During the movement of the crushing roller, the agglomerated cement can be crushed, which is convenient for the full screening of cement and improves the screening effect of cement.
[0020] 2. For the raw material screening device used in concrete production and processing, after the cement is fed through the feed hopper, under the cooperation of the opening and closing assembly, the two cover plates are driven to move towards each other to close and block the feed hopper, preventing dust from leaking out through the feed hopper during cement screening, facilitating the screening of cement, and improving the screening efficiency of cement. Description of the Drawings
[0021] Figure 1 It is a schematic cross-sectional structure diagram of a raw material screening device for concrete production and processing in an embodiment of the present application;
[0022] Figure 2 It is a schematic structural diagram of the mesh frame of a raw material screening device for concrete production and processing in an embodiment of the present application;
[0023] Figure 3 It is a schematic plan structure diagram of the screening box of a raw material screening device for concrete production and processing in an embodiment of the present application;
[0024] Figure 4 It is a raw material screening device for concrete production and processing in an embodiment of the present application Figure 1 The enlarged partial structure diagram at A in it.
[0025] Description of the reference numerals: 1. Screening box; 2. Guide plate; 3. Mesh frame; 4. Vibration assembly; 41. First slider; 42. First chute; 43. Spring; 44. Cam; 45. First driving motor; 5. Screen mesh; 6. U-shaped frame; 7. Crushing roller; 8. Linkage assembly; 81. Second slider; 82. Second chute; 83. Connecting rod; 9. Feed hopper; 10. Cover plate; 11. Sliding assembly; 111. Support plate; 112. Third slider; 113. Third chute; 12. Opening and closing assembly; 121. Moving rod; 122. Fourth slider; 123. Fourth chute; 124. Bi-directional lead screw; 125. Second driving motor. Detailed Description of the Embodiment
[0026] The following will further describe the present application in detail Figures 1-4 with reference to the accompanying drawings.
[0027] An embodiment of the present application discloses a raw material screening device for concrete production and processing. Referring to Figures 1-4 , a raw material screening device for concrete production and processing includes a screening box 1. Guide plates 2 are inclined and fixed on both sides of the inner wall of the screening box 1. A mesh frame 3 is movably arranged in the screening box 1 below the guide plates 2. A vibration assembly 4 for driving the movement of the mesh frame 3 is arranged in the screening box 1. A screen mesh 5 is fixed in the mesh frame 3. Two U-shaped frames 6 are slidably arranged at the top of the screen mesh 5. Crushing rollers 7 are rotatably connected to the bottom ends of the two U-shaped frames 6. A linkage assembly 8 for driving the movement of the U-shaped frames 6 is arranged at the bottom end of the guide plate 2.
[0028] In this embodiment, when cement is fed onto the screen 5 for screening, under the movement of the vibration assembly 4, the continuous up-and-down vibration of the screen frame 3 is driven, and the continuous up-and-down vibration of the screen 5 is driven by the screen frame 3, so that the cement can be screened. During the up-and-down vibration of the screen 5, through the cooperation of the linkage assembly 8, the U-shaped frame 6 can be driven to move horizontally on the screen 5, thereby driving the horizontal movement of the crushing roller 7. During the movement of the crushing roller 7, the caked cement can be crushed, facilitating the screening of the cement and improving the screening effect of the cement.
[0029] In a further embodiment, as Figures 2-3 shown, the vibration assembly 4 includes first sliders 41 fixedly arranged on both sides of the screen frame 3. First chutes 42 for the first sliders 41 to slide are provided on both sides of the inner wall of the screening box 1. Both first chutes 42 are fixedly connected to the first sliders 41 through springs 43. A cam 44 in contact with the screen frame 3 is rotatably connected in the screening box 1. A first driving motor 45 fixed to the cam 44 is fixed on one side of the screening box 1. The linkage assembly 8 includes second sliders 81 respectively fixedly arranged at the ends of the two U-shaped frames 6. Second chutes 82 for the second sliders 81 to slide are provided on both sides of the inner wall of the screen frame 3. Link rods 83 hinged to the guide plate 2 are hinged at the tops of the two U-shaped frames 6.
[0030] After the cement is fed onto the screen 5 in the screen frame 3, under the movement of the first driving motor 45, the rotation of the cam 44 is driven. The cam 44 drives the movement of the screen frame 3. The screen frame 3 drives the movement of the first slider 41. During the movement of the first slider 41, the spring 43 is squeezed, so that the continuous up-and-down vibration of the screen frame 3 can be driven under the cooperation of the spring 43 and the cam 44. The continuous up-and-down vibration of the screen 5 is driven by the screen frame 3, so that the cement can be screened through the screen 5. At the same time, during the up-and-down vibration of the screen 5, under the pulling cooperation of the link rod 83, the movement of the U-shaped frame 6 is driven. The U-shaped frame 6 drives the second slider 81 to slide in the second chute 82, so that the horizontal movement of the U-shaped frame 6 can be driven. The horizontal movement of the crushing roller 7 is driven by the U-shaped frame 6. During the movement of the crushing roller 7, the caked cement can be crushed, facilitating the screening of the cement and improving the screening effect of the cement.
[0031] In a further preferred embodiment of the present utility model, as Figure 1 shown, a feed hopper 9 is communicated with the top of the screening box 1. Two cover plates 10 are slidably arranged at the top of the feed hopper 9. The cover plates 10 are connected to the screening box 1 through a sliding assembly 11. An opening and closing assembly 12 for driving the cover plates 10 to move is provided at the top of the screening box 1.
[0032] When screening cement, feed the cement into the screening box 1 through the feed hopper 9. After the feeding is completed, under the cooperation of the opening and closing assembly 12, drive the two cover plates 10 to move towards each other, and the feed hopper 9 can be closed and blocked, thus avoiding the leakage of dust to the outside through the feed hopper 9 during the cement screening, facilitating the screening of cement, and improving the screening efficiency of cement.
[0033] In a further embodiment, as Figure 4 shown, the sliding assembly 11 includes a support plate 111 fixedly arranged at the bottom end of the cover plate 10. A third slider 112 is fixedly arranged at the bottom end of the support plate 111. A third sliding groove 113 for the third slider 112 to slide is formed at the top end of the screening box 1. The opening and closing assembly 12 includes moving rods 121 respectively fixedly arranged at the bottom ends of the two cover plates 10. Fourth sliders 122 are fixedly arranged at the bottom ends of the two moving rods 121. A fourth sliding groove 123 for the fourth slider 122 to slide is formed at the top end of the screening box 1. A bidirectional lead screw 124 threadedly connected to the fourth slider 122 is rotatably connected in the fourth sliding groove 123. A second driving motor 125 fixedly connected to the bidirectional lead screw 124 is arranged on one side of the screening box 1.
[0034] After the cement is fed through the feed hopper 9 and the feeding is completed, under the movement of the second driving motor 125, drive the rotation of the bidirectional lead screw 124. The bidirectional lead screw 124 drives the two fourth sliders 122 to move towards each other. The two fourth sliders 122 drive the two moving rods 121 to move towards each other. The two moving rods 121 drive the two cover plates 10 to move towards each other. During the movement of the cover plates 10, drive the movement of the support plate 111. The support plate 111 drives the third slider 112 to slide in the third sliding groove 113, so as to assist in supporting the cover plates 10 and keep the movement of the cover plates 10 stable. Then, the feed hopper 9 can be closed and blocked by the cover plates 10, avoiding the leakage of dust to the outside through the feed hopper 9 during the cement screening, facilitating the screening of cement, and improving the screening efficiency of cement.
[0035] The implementation principle of a raw material screening device for concrete production and processing in an embodiment of this application is as follows: When screening cement, feed the material into the screening box 1 through the feed hopper 9. After the feeding is completed, under the movement of the second driving motor 125, drive the rotation of the bidirectional lead screw 124. The bidirectional lead screw 124 drives the two fourth sliders 122 to move towards each other. The two fourth sliders 122 drive the two moving rods 121 to move towards each other. The two moving rods 121 drive the two covers 10 to move towards each other, so as to close and block the feed hopper 9 through the covers 10, avoiding the leakage of dust to the outside through the feed hopper 9 during cement screening, facilitating the screening of cement, and improving the screening efficiency of cement. After the cement is fed, it falls onto the screen 5. Under the movement of the first driving motor 45, drive the rotation of the cam 44. The cam 44 drives the movement of the screen frame 3. The screen frame 3 drives the first slider 41 to move. During the movement of the first slider 41, the spring 43 is compressed. Thus, under the cooperation of the spring 43 and the cam 44, drive the continuous up-and-down vibration of the screen frame 3. The screen frame 3 drives the continuous up-and-down vibration of the screen 5, so as to screen the cement through the screen 5. At the same time, during the up-and-down vibration of the screen 5, under the pulling cooperation of the connecting rod 83, drive the movement of the U-shaped frame 6. The U-shaped frame 6 drives the second slider 81 to slide in the second chute 82, so as to drive the horizontal movement of the U-shaped frame 6. The U-shaped frame 6 drives the horizontal movement of the crushing roller 7. During the movement of the crushing roller 7, the agglomerated cement can be crushed, facilitating the screening of cement and improving the screening effect of cement.
[0036] The above are all the preferred embodiments of this application. The protection scope of this application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.
Claims
1. A raw material screening device for concrete production and processing, comprising a screening box (1), characterized in that: Guide plates (2) are obliquely fixed on both sides of the inner wall of the screening box (1); a mesh frame (3) is movably provided in the screening box (1) and is located below the guide plate (2); a vibration component (4) is provided in the screening box (1) for driving the mesh frame (3) to move; a screen (5) is fixed in the mesh frame (3); two U-shaped frames (6) are slidably provided at the top of the screen (5); the bottom ends of the two U-shaped frames (6) are rotatably connected to crushing rollers (7); and a linkage component (8) is provided at the bottom end of the guide plate (2) for driving the U-shaped frame (6) to move.
2. A raw material screening device for concrete production and processing according to claim 1, characterized in that: The vibration assembly (4) comprises a first slider (41) fixedly arranged on both sides of the screen frame (3); first slide grooves (42) for the first slider (41) to slide are provided on both sides of the inner wall of the screening box (1); the two first slide grooves (42) are fixedly connected to the first slider (41) via springs (43); a cam (44) in contact with the screen frame (3) is rotatably connected inside the screening box (1); and a first drive motor (45) fixed to the cam (44) is fixed to one side of the screening box (1).
3. A raw material screening device for concrete production and processing according to claim 2, characterized in that: The linkage assembly (8) comprises second sliding blocks (81) respectively fixedly arranged at the ends of the two U-shaped frames (6); second sliding grooves (82) for the second sliding blocks (81) to slide are provided on both sides of the inner wall of the screen frame (3); and the top ends of the two U-shaped frames (6) are hingedly connected with connecting rods (83) hingedly connected to the material guide plate (2).
4. A raw material screening device for concrete production and processing according to claim 3, characterized in that: The top of the screening box (1) is connected to a feed hopper (9), and two cover plates (10) are slidably provided at the top of the feed hopper (9). The cover plates (10) are connected to the screening box (1) via a sliding assembly (11), and an opening and closing assembly (12) is provided at the top of the screening box (1) for driving the cover plates (10) to move.
5. A raw material screening device for concrete production and processing according to claim 4, characterized in that: The sliding assembly (11) comprises a support plate (111) fixedly arranged at the bottom end of the cover plate (10), a third sliding block (112) being fixed at the bottom end of the support plate (111), and a third sliding groove (113) for the third sliding block (112) to slide is provided at the top end of the screening box (1).
6. A raw material screening device for concrete production and processing according to claim 5, characterized in that: The opening and closing assembly (12) comprises moving rods (121) respectively fixedly arranged at the bottom ends of the two cover plates (10), and a fourth slider (122) is fixedly arranged at the bottom ends of the two moving rods (121). A fourth slide groove (123) for the fourth slider (122) to slide is provided at the top end of the screening box (1), and a bidirectional screw rod (124) threadedly connected to the fourth slider (122) is rotatably connected in the fourth slide groove (123), and a second drive motor (125) fixed to the bidirectional screw rod (124) is fixedly arranged on one side of the screening box (1).