Mineral admixture grinding and screening integrated machine
By designing an integrated grinding and screening machine for mineral admixtures, which combines the friction grinding of storage tanks and grinding discs with the screening of collection boxes and filter screens, the problems of mineral admixture accumulation and inconvenient material handling are solved, and the equipment achieves efficient and automated production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUAINAN UNITED UNIVERSITY
- Filing Date
- 2025-06-18
- Publication Date
- 2026-06-02
AI Technical Summary
In traditional grinding and screening equipment, mineral admixtures tend to accumulate, affecting the grinding effect and making material removal inconvenient, resulting in low equipment efficiency.
A mineral admixture grinding and screening integrated machine was designed. It uses four storage tanks to grind the material with friction with the grinding disc, combined with a collection box and a filter screen for dynamic screening. Automatic material discharge is achieved through the discharge pipe and the conveying pipe. The left and right mounting frames can slide and switch, achieving seamless connection between grinding and screening.
It improves equipment efficiency, reduces material transfer steps, prevents accumulation, enables automatic feeding and continuous production, and reduces downtime.
Smart Images
Figure CN224308505U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mineral admixture preparation technology, specifically a mineral admixture grinding and screening integrated machine. Background Technology
[0002] Mineral admixtures are auxiliary cementitious materials. When added to concrete, they can improve the performance of both fresh and hardened concrete. Typically, the dosage of mineral admixtures is greater than 5% of the cement dosage, and their fineness is the same as or finer than that of cement. They are an effective and indispensable main component material, especially in modern high-strength and high-performance concrete. In the preparation of mineral admixtures, in order to prevent clumping during later use, it is necessary to use integrated grinding and screening equipment to perform fine grinding and screen out large particles in time, ensuring the fineness of the mineral admixtures.
[0003] In traditional grinding and screening equipment, the mineral admixtures added at one time tend to accumulate inside the equipment, which can affect the overall grinding effect and increase the burden on the grinding equipment. Larger mineral admixtures after screening are inconvenient to remove from the equipment in a timely manner. Removing them after shutting down the machine can affect the equipment's performance and delay the grinding process.
[0004] Therefore, it is necessary to provide a new integrated grinding and screening machine for mineral admixtures to solve the above-mentioned technical problems. Utility Model Content
[0005] The purpose of this utility model is to provide a mineral admixture grinding and screening integrated machine that can automatically and slowly feed materials, facilitate material removal, maintain continuous use of the equipment, and relatively improve grinding efficiency.
[0006] To solve the above technical problems, the integrated grinding and screening machine for mineral admixtures provided by this utility model includes: a shell, a connecting cylinder fixedly installed on the top of the shell, material passage holes opened at the bottom of the connecting cylinder and the top of the shell, a discharge hopper provided at the top of the connecting cylinder, an electric motor fixedly installed at the top of the connecting cylinder, a discharge pipe fixedly installed at the bottom of the discharge hopper, a conveying pipe rotatably installed at the top of the connecting cylinder, bevel gears fixedly installed on both the conveying pipe and the output shaft of the electric motor, two bevel gears meshing, four diversion pipes fixedly installed on the conveying pipe, storage tanks fixedly installed at the bottom ends of the four diversion pipes, a grinding disc fixedly installed on the inner wall of the connecting cylinder, sliding holes opened on both sides of the shell, support frames fixedly installed on the inner walls of both sides of the shell, four connecting frames slidably installed on the two support frames, two mounting frames fixedly installed between the four connecting frames, and a mounting bracket fixedly installed between the two mounting frames. The device is equipped with four connecting rods. Each of the two mounting frames has an adjustment mechanism, which includes: a connecting rod, a second electric motor, two cams, two placement holes, two connecting blocks, two side blocks, two vertical rods, two springs, a collection box, and a filter screen. The connecting rod is rotatably mounted on the mounting frame. The second electric motor is fixedly mounted on one side of the mounting frame, and its output shaft is fixedly connected to one end of the connecting rod. Both cams are fixedly sleeved on the connecting rod. Both placement holes are located at the top of the mounting frame. The two connecting blocks are slidably mounted within the two placement holes. The two side blocks are fixedly mounted on both sides of the mounting frame. The two vertical rods are fixedly mounted on the top of the two side blocks and slidably connected to the two connecting blocks. The two springs are sleeved on the two vertical rods. The collection box is fixedly mounted between the two connecting blocks, and the filter screen is fixedly mounted on the collection box.
[0007] Preferably, a support base is fixedly installed at the bottom of the hopper, the bottom of the support base is fixedly connected to the top of the connecting cylinder, and an extension hole is provided on the support base, which is compatible with an electric motor.
[0008] Preferably, an annular block is fixedly sleeved on the conveying pipe, and a plurality of rolling beads are embedded in the bottom of the annular block. The plurality of rolling beads are in contact with the top of the connecting cylinder, and a material picking hole is provided on one side of the housing.
[0009] Preferably, in the two adjustment mechanisms, a pad is fixedly installed on the bottom inner wall of each of the four placement holes, and the top of each of the four pads contacts the bottom of the corresponding connecting block.
[0010] Preferably, in the two adjustment mechanisms, each of the four connecting blocks has a passage hole, and the four vertical rods are slidably installed in the corresponding passage holes.
[0011] Preferably, in the two adjustment mechanisms, a positioning seat is fixedly installed on one side of each of the two mounting brackets, and the top of each of the two positioning seats is fixedly connected to the base of each of the two electric motors.
[0012] Preferably, each of the four connecting frames is inlaid with a plurality of rolling balls, and the plurality of rolling balls are in contact with the inner walls of the two supporting frames respectively.
[0013] Compared with related technologies, the integrated grinding and screening machine for mineral admixtures provided by this utility model has the following beneficial effects:
[0014] This invention achieves seamless integration of grinding and screening processes by combining the frictional grinding of four storage tanks with the grinding disc and the dynamic screening of the collection box and filter screen. This reduces material transfer steps and improves efficiency. Guided by the discharge pipe and conveying pipe, the mineral admixture in the discharge hopper can be automatically discharged into the four storage tanks through four diversion pipes, achieving automatic discharge, avoiding frequent feeding, and preventing the accumulation of mineral admixture in the equipment. The two mounting brackets on the left and right can slide horizontally and switch, so that while one collection box is screening, the other side can be cleaned or reserved. The two collection boxes can work alternately to support continuous production, reduce downtime, and relatively improve the efficiency of equipment use. Attached Figure Description
[0015] Figure 1 This is a front view structural diagram of the present utility model;
[0016] Figure 2 This is a side view of the structure of this utility model;
[0017] Figure 3 This is a frontal sectional view of the present invention.
[0018] Figure 4 for Figure 3 An enlarged schematic diagram of the support frame shown;
[0019] Figure 5 This is a top sectional view of the support frame in this utility model;
[0020] Figure 6 This is a cross-sectional assembly diagram of the transmission tube in this utility model.
[0021] In the diagram: 1. Shell; 2. Connecting cylinder; 3. Material passage hole; 4. Discharge hopper; 5. Electric motor one; 6. Discharge pipe; 7. Conveyor pipe; 8. Bevel gear; 9. Diverter pipe; 10. Storage tank; 11. Grinding disc; 12. Sliding hole; 13. Support frame; 14. Connecting frame; 15. Mounting frame; 16. Connecting rod; 17. Adapter rod; 18. Electric motor two; 19. Cam; 20. Placement hole; 21. Connecting block; 22. Side block; 23. Vertical rod; 24. Spring; 25. Collection box; 26. Filter screen. Detailed Implementation
[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0023] Please refer to the following: Figures 1-6 ,in, Figure 1 This is a front view structural diagram of the present utility model; Figure 2 This is a side view of the structure of this utility model; Figure 3 This is a frontal sectional view of the present invention. Figure 4 for Figure 3 An enlarged schematic diagram of the support frame shown; Figure 5 This is a top sectional view of the support frame in this utility model; Figure 6This is a cross-sectional assembly diagram of the conveying pipe in this utility model. The integrated grinding and screening machine for mineral admixtures includes: a shell 1, which is rectangular; a connecting cylinder 2 is fixedly installed on the top of the shell 1; material passage holes 3 are opened at the bottom of the connecting cylinder 2 and the top of the shell 1, and the two material passage holes 3 are aligned; a discharge hopper 4 is provided at the top of the connecting cylinder 2; an electric motor 5 is fixedly installed at the top of the connecting cylinder 2; a discharge pipe 6 is fixedly installed at the bottom of the discharge hopper 4; a conveying pipe 7 is rotatably installed at the top of the connecting cylinder 2; the bottom end of the discharge pipe 6 extends into the conveying pipe 7; bevel gears 8 are fixedly installed on both the conveying pipe 7 and the output shaft of the electric motor 5; the two bevel gears 8 mesh with each other; and four... Four diversion pipes 9 are arranged in a rectangular array. A storage tank 10 is fixedly installed at the bottom of each of the four diversion pipes 9. The storage tank 10 is cylindrical with an inverted bucket-shaped opening in the middle, penetrating the bottom. A grinding disc 11 is fixedly installed on the inner wall of the connecting cylinder 2. The grinding disc 11 is annular. Sliding holes 12 are provided on both sides of the shell 1. Support frames 13 are fixedly installed on the inner walls of both sides of the shell 1. Four connecting frames 14 are slidably installed on two support frames 13. The four connecting frames 14 are grouped in pairs. Two mounting frames 15 are fixedly installed between the four connecting frames 14. Four connecting rods 16 are fixedly installed between the two mounting frames 15. Both mounting brackets 15 are equipped with adjustment mechanisms, each including: a connecting rod 17, an electric motor 18, two cams 19, two placement holes 20, two connecting blocks 21, two side blocks 22, two vertical rods 23, two springs 24, a collection box 25, and a filter screen 26. The connecting rod 17 is rotatably mounted on the mounting bracket 15. A positioning seat is fixedly mounted on one side of the mounting bracket 15. The electric motor 18 is fixedly mounted on one side of the mounting bracket 15 through the positioning seat. The output shaft of the electric motor 18 is fixedly connected to one end of the connecting rod 17. Both cams 19 are fixedly sleeved on the connecting rod 17. Both placement holes 20 are formed in... At the top of the mounting bracket 15, two connecting blocks 21 are slidably installed in two placement holes 20 respectively. Each connecting block 21 has a passage hole. Two side blocks 22 are fixedly installed on both sides of the mounting bracket 15 respectively. Two vertical rods 23 are fixedly installed on the top of the two side blocks 22 respectively. The two vertical rods 23 are slidably connected to the two connecting blocks 21 through the two passage holes respectively. Two springs 24 are respectively sleeved on the two vertical rods 23. The top and bottom ends of the two springs 24 are in contact with the corresponding connecting block 21 and side block 22 respectively. The collection box 25 is fixedly installed between the two connecting blocks 21. The filter screen 26 is fixedly installed on the collection box 25.
[0024] In order to determine the installation position of the discharge hopper 4 and provide better support for the discharge hopper 4, in this method, a support base is fixedly installed at the bottom of the discharge hopper 4. The bottom of the support base is fixedly connected to the top of the connecting cylinder 2. The support base has a protrusion hole that is compatible with the electric motor 5. The protrusion hole facilitates the maintenance of the electric motor 5 and also facilitates the heat dissipation of the electric motor 5.
[0025] In order to support the conveying pipe 7 and reduce wear, an annular block is fixedly fitted on the conveying pipe 7. Multiple rolling balls are embedded in the bottom of the annular block. The multiple rolling balls are in contact with the top of the connecting cylinder 2. A material extraction hole is opened on one side of the housing 1 to facilitate the removal of the screened mixture. Multiple rolling balls are embedded in each of the four connecting frames 14. The multiple rolling balls are in contact with the inner walls of the two support frames 13 respectively.
[0026] To reduce the impact force, in this method, in the two adjustment mechanisms, pads are fixedly installed on the bottom inner walls of the four placement holes 20, and the tops of the four pads are in contact with the bottoms of the corresponding connecting blocks 21.
[0027] The working principle of the integrated grinding and screening machine for mineral admixtures provided by this utility model is as follows:
[0028] In the initial state, the collection box 25 on the left is located at the center of the shell 1. When the mineral admixture needs to be ground, the mineral admixture to be ground is slowly poured into the discharge hopper 4. The mineral admixture in the discharge hopper 4 falls into the conveying pipe 7 along the discharge pipe 6, and then gradually flows into the four diversion pipes 9. It enters the storage tank 10 through the guidance of the four diversion pipes 9.
[0029] When the electric motor 5 is started, the output shaft of the electric motor 5 drives the transmission pipe 7 to rotate through two bevel gears 8. The transmission pipe 7 then drives the four storage tanks 10 to rotate simultaneously through four branch pipes 9. During the rotation of the four storage tanks 10, the mineral admixture at the bottom of the four storage tanks 10 gradually rubs against the grinding disc 11. The mineral admixture is ground up during the continuous friction process. After the grinding particles become fine, they gradually fall into the collection box 25 directly below, following the curvature of the grinding disc 11 and passing through the two material passage holes 3.
[0030] Start the electric motor 18 located on the left. The output shaft of the electric motor 18 drives the adapter rod 17, which in turn drives the two cams 19 to rotate simultaneously. During the rotation of the two cams 19, the outwardly protruding positions periodically push up the collection box 25. The collection box 25 drives the two connecting blocks 21 to slide on the two vertical rods 23. When the outwardly protruding positions on the two cams 19 rotate away from the collection box 25, the collection box 25 will slowly fall. The impact force generated is buffered by the two springs 24. Under the continuous push of the two cams 19, the collection box 25 slides up and down on the mounting frame 15, performing the screening process. As the mineral admixture falls into the collection box 25, it is screened. The larger mineral admixture particles will remain in the collection box 25, while the finer mineral admixture powder will fall to the bottom of the shell 1 through the sieve holes on the filter screen 26. It can then be cleaned out of the shell 1 through the material removal hole. After the collection box 25 is filled with a large amount of screened mineral admixture, the mounting frame 15 is pulled to the left. Both mounting frames 15 will slide simultaneously. The mounting frame 15 on the left side will slide out from the left side of the shell 1, while the mounting frame 15 that was originally located outside the right side of the shell 1 will be moved to the top of the shell 1 to continue to hold the screened mineral admixture.
[0031] Slide the collection box 25 together with the two connecting blocks 21 off the two vertical rods 23 to disconnect the collection box 25 from the mounting bracket 15. This makes it easy to pour out the mineral admixture in the collection box 25 and to clean the filter screen 26. After the mineral admixture has been poured out, slide the two connecting blocks 21 back onto the two vertical rods 23, and the collection box 25 will be returned to its original position, making it easy to replace the collection box 25 that is currently in use.
[0032] Compared with related technologies, the integrated grinding and screening machine for mineral admixtures provided by this utility model has the following beneficial effects:
[0033] By combining the frictional grinding of four storage tanks 10 with the grinding disc 11 and the dynamic screening of the collection box 25 and the filter screen 26, the grinding and screening processes are seamlessly connected, reducing material transfer links and improving efficiency. Guided by the discharge pipe 6 and the conveying pipe 7, the mineral admixture in the discharge hopper 4 can be automatically discharged into the four storage tanks 10 with the help of four diversion pipes 9, realizing automatic discharge, avoiding frequent feeding, and preventing the mineral admixture from accumulating in the equipment. The two mounting brackets 15 on the left and right can slide horizontally and switch, so that when one side of the collection box 25 is screening, the other side can be cleaned or reserved. The two collection boxes 25 work alternately to support continuous production, reduce downtime, and relatively improve the utilization efficiency of the equipment.
[0034] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, those skilled in the art who understand the principle of the above utility model can clearly understand the specific details of its power mechanism, power supply system and control system.
[0035] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A mineral admixture grinding and screening integrated machine, comprising a shell, characterized in that, A connecting cylinder is fixedly installed on the top of the shell. Both the bottom of the connecting cylinder and the top of the shell have material passage holes. A hopper is provided on the top of the connecting cylinder. An electric motor is fixedly installed on the top of the connecting cylinder. A discharge pipe is fixedly installed on the bottom of the discharge hopper. A conveying pipe is rotatably installed on the top of the connecting cylinder. Bevel gears are fixedly installed on both the conveying pipe and the output shaft of the electric motor, and two bevel gears mesh with each other. Four diversion pipes are fixedly installed on the conveying pipe, and storage tanks are fixedly installed at the bottom ends of the four diversion pipes. A grinding disc is fixedly installed on the inner wall of the connecting cylinder. Sliding holes are provided on both sides of the shell. Support frames are fixedly installed on the inner walls of both sides of the shell. Four connecting frames are slidably installed on two of the support frames. Two mounting frames are fixedly installed between the four connecting frames. Four connecting rods are fixedly installed between the two mounting frames. Each of the two mounting frames is equipped with... The device is equipped with two adjustment mechanisms, each comprising: a connecting rod, a second electric motor, two cams, two placement holes, two connecting blocks, two side blocks, two vertical rods, two springs, a collection box, and a filter screen. The connecting rod is rotatably mounted on a mounting frame. The second electric motor is fixedly mounted on one side of the mounting frame, and the output shaft of the second electric motor is fixedly connected to one end of the connecting rod. Both cams are fixedly sleeved on the connecting rod. Both placement holes are located at the top of the mounting frame. The two connecting blocks are slidably mounted within the two placement holes. The two side blocks are fixedly mounted on both sides of the mounting frame. The two vertical rods are fixedly mounted on the top of the two side blocks and slidably connected to the two connecting blocks. The two springs are sleeved on the two vertical rods. The collection box is fixedly mounted between the two connecting blocks, and the filter screen is fixedly mounted on the collection box.
2. The integrated grinding and screening machine for mineral admixtures according to claim 1, characterized in that, A support base is fixedly installed at the bottom of the hopper. The bottom of the support base is fixedly connected to the top of the connecting cylinder. An extension hole is provided on the support base, and the extension hole is compatible with an electric motor.
3. The integrated grinding and screening machine for mineral admixtures according to claim 1, characterized in that, An annular block is fixedly fitted on the conveying pipe, and multiple rolling beads are embedded in the bottom of the annular block. All of the rolling beads are in contact with the top of the connecting cylinder. A material picking hole is opened on one side of the shell.
4. The integrated grinding and screening machine for mineral admixtures according to claim 1, characterized in that, In both adjustment mechanisms, pads are fixedly installed on the bottom inner walls of the four placement holes, and the tops of the four pads are in contact with the bottoms of the corresponding connecting blocks.
5. The integrated grinding and screening machine for mineral admixtures according to claim 1, characterized in that, In both adjustment mechanisms, each of the four connecting blocks has a passage hole, and the four vertical rods are slidably installed in the corresponding passage holes.
6. The integrated grinding and screening machine for mineral admixtures according to claim 1, characterized in that, In both adjustment mechanisms, a positioning seat is fixedly installed on one side of each of the two mounting brackets, and the top of each positioning seat is fixedly connected to the base of each of the two electric motors.
7. The integrated grinding and screening machine for mineral admixtures according to claim 1, characterized in that, Each of the four connecting frames is inlaid with a plurality of rolling balls, and the plurality of rolling balls are in contact with the inner walls of the two supporting frames respectively.