Raw material sand mill for cement production
By designing a cement production raw material sand mill with multiple sand grinding rollers juxtaposed in the sand grinding chamber, combined with the design of annular screen and partition plates, repeated grinding of raw materials that do not meet the standards is achieved, solving the problems of low efficiency and low quality of the finished product, improving work efficiency and output, and improving the quality of the finished product.
Patent Information
- Application Number
- CN202420969558.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-05-07
AI Technical Summary
The grinding work of a single sand grinding roller leads to low working efficiency and cannot increase the output. The finished products often retain some raw materials that do not meet the standards, and the quality of the finished products needs to be improved.
A raw material sand mill for cement production is designed, multiple sand mill rollers are placed in the sand mill chamber, and the sand mill rollers are driven to rotate by driving the assembly, and an annular screen and partition plate are installed in the sand mill assembly, and the repetitive grinding of raw materials that do not meet the standards is achieved through the lifting rod and the spiral blade.
It greatly improves the efficiency of grinding work, increases output, and effectively improves the quality of finished products, reducing the phenomenon of residual raw materials in the finished products.
Smart Images
Figure CN222678230U_ABST
Abstract
Description
Technical Field
[0001] The utility model provides a raw material sand mill for cement production, belonging to the technical field of cement production. Background Art
[0002] Cement is a powdery, hydraulic inorganic cementitious material. It becomes a slurry after adding water and stirring. It can harden in the air or in water, and can firmly bond materials such as sand and stone together. In the production process of cement, it is usually necessary to grind the raw materials for cement production to meet the needs of subsequent processing. Sand mill is the most adaptable, most advanced and most efficient grinding equipment for materials. It can eliminate the agglomeration phenomenon between particles and ensure the uniformity of materials. When producing and processing cement, sand mill is one of the indispensable production equipment.
[0003] The existing sand mill can basically meet the use needs, but there are still some defects: when grinding raw materials for cement production, since a single sand mill roller is usually used for grinding, the work efficiency is relatively low and the output cannot be increased; and the finished product after grinding often has some raw materials that do not meet the grinding standards, and the quality of the finished product needs to be improved. Based on this, the utility model provides a raw material sand mill for cement production. Utility Model Content
[0004] The technical problem solved by the utility model is that: the working efficiency of grinding with a single sanding roller is relatively low and the output cannot be increased; the finished product after grinding often has some raw materials that do not meet the grinding standards, and the quality of the finished product needs to be improved.
[0005] In order to solve the technical problem, the technical solution provided by the utility model is: a raw material sand mill for cement production, comprising an outer shell, the inner side wall of the outer shell is symmetrically provided with support rods, a sand mill barrel assembly is provided between the support rods, a driving assembly is provided on the top of the outer shell, and a plurality of sand mill rollers and a lifting rod driven by the driving assembly and placed in the sand mill barrel assembly are provided in the outer shell, the sand mill barrel assembly comprises an outer screen barrel, an annular screen is provided on the inner bottom wall of the outer screen barrel and placed on the periphery of the lifting rod, a plurality of partition plates are provided circumferentially between the outer screen barrel and the annular screen, and a sand mill chamber matched with the sand mill roller is formed between the outer screen barrel, the annular screen and the partition plates.
[0006] Furthermore, a feed hopper is provided on the upper wall of the shell side, the outlet end of the feed hopper is located above the sanding cylinder assembly, and a discharge port is provided at the bottom of the shell.
[0007] Furthermore, the driving assembly includes a driving box arranged on the top of the outer shell, and the tops of the multiple sanding rollers are provided with rotating rods that pass through the top of the outer shell and are rotatably connected to the top wall of the driving box. The rotating rod is provided with a slave gear placed in the driving box. The top of the lifting rod passes through the top of the outer shell and is inserted into the driving box. The top rod body of the lifting rod is provided with a main gear that is meshed with the slave gear.
[0008] Furthermore, a motor is provided on the top of the driving box, and an output end of the motor is inserted into the driving box and fixedly connected to the top of the lifting rod.
[0009] Furthermore, the plurality of sanding rollers are distributed in a circumference in the sanding chamber, and the lifting rod is provided with a spiral blade placed in an annular screen.
[0010] Furthermore, the height of the annular screen is slightly smaller than the height of the outer screen cylinder, the side wall and the bottom wall of the outer screen cylinder are both provided with screen hole 1, and the side wall of the annular screen is provided with screen hole 2, and the aperture of screen hole 1 is smaller than the aperture of screen hole 2.
[0011] Beneficial effects of the utility model:
[0012] 1. Through the driving assembly, the motor is started to drive the lifting rod to rotate, and the rotation of the lifting rod drives the main gear to rotate. Under the meshing connection between the main gear and the slave gear, the slave gear is driven to rotate, and the rotating rod is driven to rotate, and the sanding roller is driven to rotate in the sanding chamber, so that multiple sanding rollers can grind the raw materials for cement production in multiple sanding chambers, which greatly improves the work efficiency and increases the output;
[0013] 2 The raw materials that meet the grinding standards in the sand mill chamber flow out from the sieve hole 1 into the shell and are discharged through the discharge port. The raw materials that do not meet the grinding standards flow into the annular screen from the sieve hole 2. The spiral blades are driven by the rotation of the lifting rod to lift and transport the raw materials that do not meet the grinding standards in the annular screen. The raw materials that do not meet the grinding standards are returned to the sand mill chamber for repeated grinding, which effectively improves the quality of the finished product to avoid residual raw materials that do not meet the grinding standards in the finished product. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 The utility model is a structural schematic diagram of a raw material sand mill for cement production.
[0015] Figure 2 The utility model is a plan view of a raw material sand mill for cement production.
[0016] Figure 3 The utility model is a schematic diagram of the partial structure of a driving component of a raw material sand mill for cement production.
[0017] Figure 4The utility model is a schematic structural diagram of a sand mill drum assembly of a raw material sand mill for cement production.
[0018] 1. Outer shell; 2. Support rod; 3. Sanding cylinder assembly; 4. Driving assembly; 5. Lifting rod; 6. Outer screen cylinder; 7. Annular screen; 8. Partition plate; 9. Sanding chamber; 10. Feed hopper; 11. Discharge port; 12. Motor; 13. Rotating rod; 14. Slave gear; 15. Main gear; 16. Spiral blade; 17. Screen hole 1; 18. Screen hole 2; 19. Sanding roller; 20. Driving box. DETAILED DESCRIPTION
[0019] The utility model is further described below in conjunction with the accompanying drawings.
[0020] According to the attached Figure 1 , 2 4: The utility model provides a raw material sand mill for cement production: comprising a shell 1, the inner side wall of the shell 1 is symmetrically provided with support rods 2, a sand mill cylinder assembly 3 is provided between the support rods 2, a driving assembly 4 is provided on the top of the shell 1, a plurality of sand mill rollers 19 and a lifting rod 5 driven by the driving assembly 4 and placed in the sand mill cylinder assembly 3 are provided in the shell 1, the sand mill cylinder assembly 3 comprises an outer screen cylinder 6, an annular screen 7 placed on the outer periphery of the lifting rod 5 is provided on the inner bottom wall of the outer screen cylinder 6, a plurality of partition plates 8 are provided on the circumference between the outer screen cylinder 6 and the annular screen 7, the outer screen cylinder 6, the annular screen 7 and the partition plates 8 are provided on the outer periphery of ... A sanding chamber 9 matched with the sanding roller 19 is formed between the plates 8. The driving component 4 drives the multiple sanding rollers 19 and the lifting rod 5 to rotate simultaneously, so that the multiple sanding rollers 9 grind the raw materials for cement production in the multiple sanding chambers 9, which greatly improves the work efficiency and increases the output. The spiral blade 16 is driven by the rotation of the lifting rod 5 to rotate, so that the raw materials that do not meet the grinding standards in the annular screen 7 can be raised and transported, and the raw materials that do not meet the grinding standards are returned to the sanding chamber 19 for repeated grinding, which effectively improves the quality of the finished product to avoid some raw materials that do not meet the grinding standards remaining in the finished product.
[0021] According to the attached Figure 1 , 2 As shown: a feed hopper 10 is provided on the upper wall of the outer shell 1, and the outlet end of the feed hopper 10 is located above the sand mill cylinder assembly 3, ensuring that the raw materials for cement production added from the feed hopper 10 are transported to the sand mill cylinder assembly 3, and a discharge port 11 is provided at the bottom of the outer shell 1.
[0022] According to the attached Figure 2 , 3As shown: the driving assembly 4 includes a driving box 20 arranged on the top of the shell 1, and a plurality of sanding rollers 19 are provided with a rotating rod 13 on the top of the shell 1 and rotatably connected to the top wall of the driving box 20. The rotating rod 13 is provided with a slave gear 14 placed in the driving box 20. The top of the lifting rod 5 passes through the top of the shell 1 and is inserted into the driving box 20. The top rod body of the lifting rod 5 is provided with a main gear 15 meshing with the slave gear 14. The lifting rod 5 rotates to drive the main gear 15 to rotate. Under the meshing connection between the main gear 15 and the slave gear 14, the slave gear 14 is driven to rotate, and then the rotating rod 13 is driven to rotate, and then the sanding rollers 19 are driven to rotate in the sanding chamber 9, so as to grind the raw materials for cement production.
[0023] According to the attached Figure 2 As shown: a motor 12 is disposed on the top of the driving box 20, and an output end of the motor 12 is inserted into the driving box 20 and fixedly connected to the top of the lifting rod 5, ensuring that the motor 12 can effectively drive the lifting rod 5 to rotate.
[0024] According to the attached Figure 2 , 4 As shown: multiple sanding rollers 19 are distributed in a circle in the sanding chamber 9, which can perform grinding work at the same time, improve work efficiency and increase production. The lifting rod 5 is provided with a spiral blade 16 placed in the annular screen 7, which plays the role of lifting and transporting the raw materials that do not meet the grinding standards in the annular screen 7.
[0025] According to the attached Figure 4 As shown: the height of the annular screen 7 is slightly smaller than the height of the outer screen drum 6, the side wall and the bottom wall of the outer screen drum 6 are both provided with a screen hole 17, and the side wall of the annular screen 7 is provided with a screen hole 2 18, and the aperture of the screen hole 17 is smaller than the aperture of the screen hole 2 18, so that the raw materials that meet the grinding standards in the sand mill chamber 9 flow out from the screen hole 17 into the shell 1, and are discharged through the discharge port 11, and the raw materials that do not meet the grinding standards flow into the annular screen 7 from the screen hole 2 18, and are transported upward by the lifting rod 5 and the spiral blade 16, so that the raw materials that do not meet the grinding standards return to the sand mill chamber 19 for repeated grinding.
[0026] Principle of the utility model
[0027] When in use, the raw materials for cement production added from the feed hopper 10 are transported to the sand mill cylinder assembly 3, and the motor 12 is started through the driving assembly 4 to drive the lifting rod 5 to rotate. The rotation of the lifting rod 5 drives the main gear 15 to rotate, and under the meshing connection between the main gear 15 and the slave gear 14, the slave gear 14 is driven to rotate, and the rotating rod 13 is driven to rotate, and the sand mill roller 19 is driven to rotate in the sand mill chamber 9, so that multiple sand mill rollers 9 grind the raw materials for cement production in multiple sand mill chambers 9, which greatly improves work efficiency and increases output. The raw materials that meet the grinding standards in the sand mill chamber 9 flow out from the sieve hole 17 into the shell 1 and are discharged through the discharge port 11. The raw materials that do not meet the grinding standards flow into the annular screen 7 from the sieve hole 2 18. The rotation of the lifting rod 5 drives the spiral blade 16 to rotate, so that the raw materials that do not meet the grinding standards in the annular screen 7 can be raised and transported, so that the raw materials that do not meet the grinding standards are returned to the sand mill chamber 19 for repeated grinding, effectively improving the quality of the finished product to avoid residual raw materials that do not meet the grinding standards in the finished product.
[0028] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.
Claims
1. A raw material sand mill for cement production, comprising a housing (1), characterized in that: The inner wall of the shell (1) is symmetrically provided with support rods (2), a sanding barrel assembly (3) is provided between the support rods (2), a driving assembly (4) is provided on the top of the shell (1), a plurality of sanding rollers (19) and a lifting rod (5) driven by the driving assembly (4) and placed in the sanding barrel assembly (3) are provided in the shell (1), the sanding barrel assembly (3) comprises an outer screen cylinder (6), an annular screen (7) placed on the outer periphery of the lifting rod (5) is provided on the inner bottom wall of the outer screen cylinder (6), a plurality of partition plates (8) are circumferentially provided between the outer screen cylinder (6) and the annular screen (7), and a sanding cavity (9) matched with the sanding rollers (19) is formed between the outer screen cylinder (6), the annular screen (7) and the partition plates (8).
2. A raw material sand mill for cement production according to claim 1, characterized in that: A feed hopper (10) is provided on the upper side wall of the outer shell (1), the outlet end of the feed hopper (10) is located above the sanding cylinder assembly (3), and a discharge port (11) is provided at the bottom of the outer shell (1).
3. A raw material sand mill for cement production according to claim 1, characterized in that: The driving assembly (4) comprises a driving box (20) arranged at the top of the outer shell (1); a rotating rod (13) passing through the top of the outer shell (1) and rotatably connected to the inner top wall of the driving box (20) is provided on the top of the plurality of sanding rollers (19); a slave gear (14) disposed in the driving box (20) is provided on the rotating rod (13); the top of the lifting rod (5) passes through the top of the outer shell (1) and is inserted into the driving box (20); a main gear (15) meshingly connected to the slave gear (14) is provided on the top rod body of the lifting rod (5).
4. A raw material sand mill for cement production according to claim 3, characterized in that: A motor (12) is provided on the top of the driving box (20), and an output end of the motor (12) is inserted into the driving box (20) and fixedly connected to the top of the lifting rod (5).
5. A raw material sand mill for cement production according to claim 1, characterized in that: The plurality of sanding rollers (19) are circumferentially distributed in the sanding chamber (9), and the lifting rod (5) is provided with a spiral blade (16) placed in an annular screen (7).
6. A raw material sand mill for cement production according to claim 1, characterized in that: The height of the annular screen (7) is slightly smaller than the height of the outer screen drum (6); the side wall and the bottom wall of the outer screen drum (6) are both provided with a first screen hole (17); the side wall of the annular screen (7) is provided with a second screen hole (18); the aperture of the first screen hole (17) is smaller than the aperture of the second screen hole (18).