A device for modifying the grinding of gypsum powder
By evaporating water vapor in the heating element of the gypsum powder grinding device, combined with the grinding and mixing elements, the problem of gypsum powder agglomeration is solved, and the grinding and mixing efficiency of gypsum powder is improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WEIFANG XIANGDESHI NEW BUILDING MATERIALS CO LTD
- Filing Date
- 2025-07-10
- Publication Date
- 2026-05-29
AI Technical Summary
Existing gypsum powder grinding equipment suffers from gypsum powder clumping due to the presence of water vapor in the air during the grinding process, which affects grinding efficiency.
Heating components are used to heat the inside of the processing cylinder, causing water vapor to evaporate and reducing the contact between gypsum powder and water vapor. Grinding and mixing components are used to improve the grinding and mixing efficiency of gypsum powder.
It effectively prevents gypsum powder from clumping, improves grinding efficiency, and enhances grinding effect and mixing speed.
Smart Images

Figure CN224293108U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of gypsum modification, and in particular to a gypsum powder grinding and modification device. Background Technology
[0002] Gypsum, a dihydrate of calcium sulfate, plays a vital role in various fields including traditional Chinese medicine, agriculture, chemicals, food, and building materials. Due to its diverse applications, gypsum often requires modification and grinding. Existing technology publication CN218107927U discloses a high-efficiency grinding and modification device for gypsum powder, comprising a shell with a feed inlet fixedly connected to its upper surface. A grinding cavity is formed inside the shell near the feed inlet, and a grinding roller is rotatably connected within the grinding cavity. A motor is fixedly connected to the left side of the grinding roller, and a screw propeller is fixedly connected to the right side. A grinding roller adjustment device is fixedly connected below the motor. However, during the grinding process, the gypsum powder comes into full contact with air. Since air contains a certain amount of water vapor, and the aforementioned device lacks the function of drying the grinding cavity, gypsum powder may clump, thus affecting the grinding efficiency. Utility Model Content
[0003] To solve the above-mentioned technical problems, this utility model provides a gypsum powder grinding modification device that can heat the inside of the processing cylinder, reduce the contact between gypsum powder and water vapor, avoid gypsum powder agglomeration to a certain extent, and improve the grinding efficiency of gypsum powder.
[0004] This utility model discloses a grinding and modification device for gypsum powder, comprising a processing cylinder, multiple support legs, a discharge pipe, a feed hopper, a grinding component, a mixing and stirring component, and a heating component. Multiple support legs are installed at the bottom of the processing cylinder, a discharge pipe is installed in the middle of the bottom end of the processing cylinder, and a feed hopper is installed at the top end of the processing cylinder. A grinding component is installed on the upper side inside the processing cylinder, and a mixing and stirring component is installed on the lower side inside the processing cylinder, with its input end connected to the grinding component. A heating component is installed outside the processing cylinder. The gypsum to be processed is added to the feed hopper, and the grinding component grinds the gypsum. Therefore, the grinding effect is achieved. The mixing and stirring components can stir and disperse the ground gypsum powder, allowing the modified material to be directly distributed inside the phosphogypsum powder and mixed together with it. This increases the contact area between the modified material and the phosphogypsum powder, making the mixing speed faster and improving the mixing efficiency. The heating components can heat the inside of the processing cylinder, causing the water vapor in the air inside the processing cylinder to evaporate, thereby reducing the contact between the gypsum powder and water vapor, and thus avoiding the gypsum powder from clumping to a certain extent, thereby improving the grinding efficiency of gypsum powder.
[0005] Preferably, the grinding components include a first grinding cylinder, a drive motor, a main shaft, grinding rollers, a scraper, and a secondary grinding component. The first grinding cylinder is installed on the inner wall of the processing cylinder, and the drive motor is installed at the middle of the top of the processing cylinder. The output end of the drive motor is connected to the main shaft, and the output end of the main shaft passes through the top of the processing cylinder to install the grinding rollers, which are located inside the first grinding cylinder. A scraper is installed on the inner wall of the processing cylinder, and the bottom of the scraper slides in contact with the top of the grinding rollers. The gypsum to be processed is added to the feed hopper, and the gypsum is poured into the top of the grinding rollers inside the processing cylinder through the feed hopper. The drive motor is started to drive the grinding rollers to rotate through the main shaft. By cooperating with the first grinding cylinder, the gypsum is ground, thus achieving the grinding effect. When the grinding rollers rotate, the scraper can scrape the gypsum on their top, ensuring material feeding efficiency.
[0006] Preferably, the secondary grinding component includes a connecting pipe, a second grinding cylinder, a drive shaft, and a second grinding cone. The input end of the connecting pipe is connected to the bottom of the first grinding cylinder, and the output end of the bottom of the connecting pipe is connected to the second grinding cylinder. The lower end of the second grinding cylinder is installed on the inner wall of the processing cylinder. The drive shaft is located inside the connecting pipe, and the input end of the drive shaft is connected to the bottom of the grinding roller. The output end of the drive shaft is equipped with the second grinding cone, which is located inside the second grinding cylinder, and the top of the second grinding cone is set to be arc-shaped. After the first grinding, the plaster falls into the connecting pipe, and the connecting pipe inputs the plaster into the second grinding cylinder. When the grinding roller rotates, it drives the second grinding cone to rotate inside the second grinding cylinder through the drive shaft, which cooperates with the second grinding cylinder to grind the plaster and enhance the grinding effect.
[0007] Preferably, it also includes multiple support rods, a support plate, and a conical baffle. The multiple support rods are axially and evenly installed on the inner wall of the processing cylinder, and the support plate is installed between the multiple support rods. The bottom of the second grinding cone is rotatably mounted on the top of the support plate via a support shaft. A conical baffle is installed on the outer wall of the support plate, and the top of the conical baffle contacts the bottom of the second grinding cone. The support rods and the support plate support the bottom of the second grinding cone to ensure stability during use, and the conical baffle can block falling plaster to prevent it from falling onto the top of the support plate.
[0008] Preferably, the mixing and stirring component includes a drive gear, multiple transmission gears, multiple stirring shafts, and multiple sets of stirring rods. The drive gear is coaxially mounted on the support shaft at the bottom of the second grinding cone. The multiple stirring shafts are axially distributed and rotatably mounted on the support plate about the drive gear. A transmission gear is installed at the top of the stirring shaft and meshes with the drive gear. Multiple stirring rods are installed at the bottom of the stirring shaft. When the second grinding cone rotates, it drives the transmission gear to rotate through the support shaft and the drive gear. The transmission gear drives the stirring shaft to rotate, causing the stirring rods to stir and disperse the ground gypsum powder. This allows the modified material to be directly distributed inside the phosphogypsum powder and mixed with it, increasing the contact area between the modified material and the phosphogypsum powder, making the mixing speed faster and improving the mixing efficiency.
[0009] Preferably, the heating component includes an insulation sleeve, a heater, and multiple heating rods. The insulation sleeve is installed outside the processing cylinder, the heater is installed at the top of the insulation sleeve, and multiple heating rods are evenly installed at the bottom of the heater. Activating the heater heats the heating rods, raising the temperature inside the processing cylinder and causing water vapor in the air inside the cylinder to evaporate. This reduces the contact between the gypsum powder and water vapor, thus preventing gypsum powder from clumping to some extent, thereby improving the grinding efficiency of the gypsum powder. The insulation sleeve also provides insulation, reducing heat waste.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: the gypsum to be processed is added into the feed hopper, and the gypsum is ground by the grinding component, thus achieving the grinding effect. The mixing and stirring component can stir and disperse the ground gypsum powder, so that the modified material can be directly distributed inside the phosphogypsum powder and mixed with the phosphogypsum powder, increasing the contact area between the modified material and the phosphogypsum powder, making the mixing speed faster and improving the mixing efficiency. The heating component can heat the inside of the processing cylinder, causing the water vapor in the air inside the processing cylinder to evaporate, thereby reducing the contact between the gypsum powder and water vapor, and thus avoiding the gypsum powder from clumping to a certain extent, thereby achieving the effect of improving the grinding efficiency of gypsum powder. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of this utility model;
[0012] Figure 2 This is a schematic diagram of the isometric structure of this utility model;
[0013] Figure 3 This is a schematic diagram of the lower three-dimensional structure of this utility model;
[0014] Figure 4 This is a front cross-sectional structural diagram of the present invention;
[0015] Figure 5 This is a partial cross-sectional structural schematic diagram of the present invention;
[0016] The following are labels in the attached diagram: 1. Processing cylinder; 2. Support leg; 3. Discharge pipe; 4. Feed hopper; 5. First grinding cylinder; 6. Drive motor; 7. Main shaft; 8. Grinding roller block; 9. Connecting pipe; 10. Second grinding cylinder; 11. Drive shaft; 12. Second grinding cone block; 13. Support rod; 14. Support plate; 15. Conical baffle; 16. Drive gear; 17. Transmission gear; 18. Stirring shaft; 19. Stirring rod; 20. Scraper; 21. Insulation sleeve; 22. Heater; 23. Heating rod. Detailed Implementation
[0017] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.
[0018] like Figures 1 to 5 As shown, the bottom of the processing cylinder 1 is equipped with multiple support legs 2, the middle of the bottom end of the processing cylinder 1 is equipped with a discharge pipe 3, the top end of the processing cylinder 1 is equipped with a feed hopper 4, the first grinding cylinder 5 is installed on the inner wall of the processing cylinder 1, the drive motor 6 is installed at the middle of the top end of the processing cylinder 1, the output end of the drive motor 6 is connected to a spindle 7, the output end of the spindle 7 passes through the top end of the processing cylinder 1 and is equipped with a grinding roller block 8, the grinding roller block 8 is located inside the first grinding cylinder 5, a scraper 20 is installed on the inner wall of the processing cylinder 1, the bottom of the scraper 20 slides in contact with the top of the grinding roller block 8, the input end of the connecting pipe 9 is connected to the bottom of the first grinding cylinder 5, the bottom output end of the connecting pipe 9 is connected to the second grinding cylinder 10, the lower end of the second grinding cylinder 10 is installed on the inner wall of the processing cylinder 1, the drive shaft 11 is located inside the connecting pipe 9, the input end of the drive shaft 11 is connected to the bottom of the grinding roller block 8, the bottom output end of the drive shaft 11 is equipped with a second grinding cone block 12, the second grinding cone block... 12 is located inside the second grinding cylinder 10, and the top of the second grinding cone 12 is set as arc. Multiple support rods 13 are axially and evenly installed on the inner wall of the processing cylinder 1. A support plate 14 is installed between the multiple support rods 13. The bottom of the second grinding cone 12 is rotatably installed on the top of the support plate 14 through the support shaft. A conical baffle 15 is installed on the outer wall of the support plate 14. The top of the conical baffle 15 contacts the bottom of the second grinding cone 12. The drive gear 16 is coaxially installed on the bottom support shaft of the second grinding cone 12. Multiple stirring shafts 18 are axially distributed and rotatably installed on the support plate 14 about the drive gear 16. A transmission gear 17 is installed at the top of the stirring shaft 18. The transmission gear 17 meshes with the drive gear 16. Multiple stirring rods 19 are installed at the bottom of the stirring shaft 18. The heat insulation sleeve 21 is installed outside the processing cylinder 1. The heater 22 is installed at the top of the heat insulation sleeve 21. Multiple heating rods 23 are evenly installed at the bottom of the heater 22.
[0019] The heater 22 is activated to heat the heating rod 23, raising the temperature inside the processing cylinder 1. This causes the water vapor in the air inside the processing cylinder 1 to evaporate, reducing the contact between the gypsum powder and the water vapor, thus preventing the gypsum powder from clumping to a certain extent and improving the grinding efficiency of the gypsum powder. The insulation sleeve 21 provides insulation, reducing heat waste. The gypsum to be processed is added to the feed hopper 4, and the gypsum is poured into the top of the grinding roller block 8 inside the processing cylinder 1 through the feed hopper 4. The drive motor 6 is activated to drive the grinding roller block 8 to rotate through the main shaft 7. By cooperating with the first grinding cylinder 5, the gypsum is ground, thus achieving the grinding effect. When the grinding roller block 8 rotates, the scraper 20 can scrape the gypsum on its top, ensuring feeding efficiency. The gypsum after one grinding falls into the connecting pipe 9, and the connecting pipe 9 inputs the gypsum into the second grinding cylinder. In the grinding cylinder 10, when the grinding roller block 8 rotates, it drives the second grinding cone block 12 to rotate inside the second grinding cylinder 10 via the transmission shaft 11. The second grinding cone block 12 works in conjunction with the second grinding cylinder 10 to grind the gypsum, enhancing the grinding effect. The bottom of the second grinding cone block 12 is supported by the support rod 13 and the support plate 14 to ensure stability during use. The conical baffle 15 can block the falling gypsum and prevent it from falling onto the top of the support plate 14. When the second grinding cone block 12 rotates, it drives the transmission gear 17 to rotate via the support shaft and the drive gear 16. The transmission gear 17 drives the stirring shaft 18 to rotate, so that the stirring rod 19 stirs and disperses the ground gypsum powder. This allows the modified material to be directly distributed inside the phosphogypsum powder and mixed with it, increasing the contact area between the modified material and the phosphogypsum powder, making the mixing speed faster and improving the mixing efficiency.
[0020] like Figures 1 to 5As shown, this utility model discloses a gypsum powder grinding and modification device. During operation, the heater 22 is activated to heat the heating rod 23, raising the temperature inside the processing cylinder 1. This causes water vapor in the air inside the processing cylinder 1 to evaporate, reducing the contact between the gypsum powder and water vapor, thus preventing gypsum powder from clumping to a certain extent and improving the grinding efficiency of the gypsum powder. The gypsum to be processed is added to the feed hopper 4, and the gypsum is poured into the top of the grinding roller block 8 inside the processing cylinder 1 through the feed hopper 4. The drive motor 6 is activated, driving the grinding roller block 8 to rotate through the main shaft 7. The grinding roller block 8, in conjunction with the first grinding cylinder 5, grinds the gypsum. After one grinding, the gypsum falls into the connecting pipe 9, which then feeds the gypsum into the second grinding cylinder 10. The grinding roller block 8 rotates... When in motion, the second grinding cone 12 is driven to rotate inside the second grinding cylinder 10 via the drive shaft 11, and works with the second grinding cylinder 10 to grind the gypsum again. The bottom of the second grinding cone 12 is supported by the support rod 13 and the support plate 14 to ensure stability during use. The conical baffle 15 can block the falling gypsum and prevent it from falling onto the top of the support plate 14. When the second grinding cone 12 rotates, it drives the transmission gear 17 to rotate via the support shaft and the drive gear 16. The transmission gear 17 drives the stirring shaft 18 to rotate, so that the stirring rod 19 stirs and disperses the ground gypsum powder. This allows the modified material to be directly distributed inside the phosphogypsum powder and mixed with it, increasing the contact area between the modified material and the phosphogypsum powder and making the mixing speed faster.
[0021] The drive motor 6, heater 22, and heating rod 23 of the gypsum powder grinding and modification device of this utility model are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.
[0022] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A grinding and modifying device for gypsum powder, characterized in that, It includes a processing cylinder (1), multiple support legs (2), a discharge pipe (3), a feed hopper (4), a grinding component, a mixing and stirring component, and a heating component. Multiple support legs (2) are installed at the bottom of the processing cylinder (1). A discharge pipe (3) is installed in the middle of the bottom end of the processing cylinder (1). A feed hopper (4) is installed at the top of the processing cylinder (1). A grinding component is installed on the upper side inside the processing cylinder (1). A mixing and stirring component is installed on the lower side inside the processing cylinder (1), and the input end of the mixing and stirring component is connected to the grinding component. A heating component is installed on the outside of the processing cylinder (1).
2. The gypsum powder grinding and modification device as described in claim 1, characterized in that, The grinding components include a first grinding cylinder (5), a drive motor (6), a spindle (7), a grinding roller (8), a scraper (20), and a secondary grinding component. The first grinding cylinder (5) is installed on the inner wall of the processing cylinder (1). The drive motor (6) is installed at the middle of the top of the processing cylinder (1). The output end of the drive motor (6) is connected to the spindle (7). The output end of the spindle (7) passes through the top of the processing cylinder (1) and is equipped with the grinding roller (8). The grinding roller (8) is located inside the first grinding cylinder (5). The scraper (20) is installed on the inner wall of the processing cylinder (1). The bottom of the scraper (20) slides in contact with the top of the grinding roller (8).
3. The gypsum powder grinding and modification device as described in claim 2, characterized in that, The secondary grinding component includes a connecting pipe (9), a second grinding cylinder (10), a drive shaft (11), and a second grinding cone (12). The input end of the connecting pipe (9) is connected to the bottom of the first grinding cylinder (5), and the output end of the bottom of the connecting pipe (9) is connected to the second grinding cylinder (10). The lower end of the second grinding cylinder (10) is installed on the inner wall of the processing cylinder (1). The drive shaft (11) is located inside the connecting pipe (9). The input end of the drive shaft (11) is connected to the bottom of the grinding roller block (8). The output end of the drive shaft (11) is equipped with the second grinding cone (12). The second grinding cone (12) is located inside the second grinding cylinder (10), and the top of the second grinding cone (12) is set to be arc-shaped.
4. The gypsum powder grinding and modification apparatus as described in claim 3, characterized in that, It also includes multiple support rods (13), a support plate (14) and a conical baffle (15). The multiple support rods (13) are axially and evenly installed on the inner wall of the processing cylinder (1). The support plate (14) is installed between the multiple support rods (13). The bottom of the second grinding cone (12) is rotatably installed on the top of the support plate (14) through the support shaft. The conical baffle (15) is installed on the outer wall of the support plate (14). The top of the conical baffle (15) contacts the bottom of the second grinding cone (12).
5. The gypsum powder grinding and modification apparatus as described in claim 4, characterized in that, The mixing and stirring components include a drive gear (16), multiple transmission gears (17), multiple stirring shafts (18), and multiple sets of stirring rods (19). The drive gear (16) is coaxially mounted on the bottom support shaft of the second grinding cone (12). The multiple stirring shafts (18) are axially distributed and rotatably mounted on the support plate (14) about the drive gear (16). The top of the stirring shaft (18) is equipped with a transmission gear (17), which meshes with the drive gear (16). The bottom of the stirring shaft (18) is equipped with multiple stirring rods (19).
6. The gypsum powder grinding and modification apparatus as described in claim 1, characterized in that, The heating components include an insulation sleeve (21), a heater (22) and multiple heating rods (23). The insulation sleeve (21) is installed outside the processing cylinder (1), the heater (22) is installed at the top of the insulation sleeve (21), and multiple heating rods (23) are evenly installed at the bottom of the heater (22).