A grinding device for producing calcium carbonate

Abstract

This utility model relates to the technical field of grinding equipment, specifically a grinding equipment for calcium carbonate production. It includes a grinding mill with a rotating drum rotatably connected to it. The rotating drum has an adjustment structure, which includes adjustment plates. Multiple adjustment plates are slidably connected to the rotating drum. A fixed shaft is fixedly connected to the adjustment plates, and ball bearings are rotatably connected to the fixed shaft. A guide rod is fixedly connected to the rotating drum, and a drive block is slidably connected to the guide rod. The drive block has multiple inclined grooves, and the ball bearings roll in contact with the grooves. A lead screw is rotatably connected to the rotating drum, and the drive block is threadedly connected to the lead screw. A rotating shaft is rotatably connected to the adjustment plates, and multiple grinding wheels are fixedly connected to the rotating shaft. Through the lead screw drive and the engagement of the inclined grooves, the position of the grinding wheels can be adjusted to adapt to the grinding requirements of calcium carbonate of different particle sizes. This eliminates the need to replace the grinding wheels, significantly reducing maintenance costs and downtime. It is suitable for high-precision, continuous production environments, effectively improving grinding quality and efficiency.

Description

Technical Field

[0001] This utility model relates to a grinding equipment, specifically a grinding equipment for calcium carbonate production, and belongs to the technical field of grinding equipment. Background Technology

[0002] Calcium carbonate is a common inorganic compound, usually appearing as a white powder or lumps. As an indispensable basic raw material in industrial production, it has a wide range of applications, covering many important fields such as building materials, plastics, rubber, coatings, papermaking, and food additives. However, in practical applications, different fields have significantly different requirements for the particle size of calcium carbonate. Therefore, grinding equipment must be used to grind the lumpy or coarse-grained calcium carbonate raw materials into fine powders that meet the needs of each field.

[0003] However, after long-term use and wear, the gap between the grinding wheel and the inner wall of the grinding chamber will gradually increase. Since the grinding wheel is in a fixed position, it cannot compensate for this gap, resulting in a continuous decrease in grinding accuracy, which in turn reduces the quality of calcium carbonate powder. At this time, it is necessary to replace the grinding wheel of the corresponding specification or the entire grinding assembly, which increases the equipment maintenance cost. Utility Model Content

[0004] The purpose of this invention is to provide a grinding equipment for calcium carbonate production in order to solve the above-mentioned problems. Through the combination of screw drive and inclined roller groove, it can ensure that the spacing between multiple adjustment plates is uniform, avoid uneven powder particle size, and adjust the position of the grinding wheel to adapt to the grinding requirements of calcium carbonate with different particle sizes. There is no need to replace the grinding wheel, which greatly reduces maintenance costs and downtime. It is suitable for high-precision and continuous production environments and effectively improves grinding quality and efficiency.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: a grinding equipment for calcium carbonate production, comprising a grinding mill, a rotating drum rotatably connected to the grinding mill, an adjusting structure provided on the rotating drum, the adjusting structure including adjusting plates, multiple adjusting plates slidably connected to the rotating drum, a fixed shaft fixedly connected to the adjusting plates, ball bearings rotatably connected to the fixed shaft, a guide rod fixedly connected to the rotating drum, a driving block slidably connected to the guide rod, the driving block having multiple inclined grooves, the ball bearings rollingly engaging with the grooves, a lead screw rotatably connected to the rotating drum, the driving block being threadedly connected to the lead screw, a rotating shaft rotatably connected to the adjusting plate, and multiple grinding wheels fixedly connected to the rotating shaft.

[0006] Preferably, a connecting shaft is fixedly connected to the rotating drum, and the connecting shaft is rotatably connected to the grinding mill.

[0007] Preferably, the lead screw is rotatably connected to the connecting shaft, a turntable is fixedly connected to the lead screw, and a connecting rod is fixedly connected to the turntable.

[0008] Preferably, the turntable is fixed by a limiting structure, the limiting structure including a limiting shaft, and the limiting shaft is slidably connected to the connecting rod.

[0009] Preferably, the connecting shaft is provided with a plurality of limiting holes, and the limiting shaft engages with one of the limiting holes.

[0010] Preferably, a fixing ring is fixedly connected to the limiting shaft, the fixing ring is slidably connected to the connecting rod, a spring is fixedly connected between the fixing ring and the connecting rod, and a pressing block is fixedly connected to the limiting shaft.

[0011] Preferably, the connecting shaft is driven by a drive structure, the drive structure including a transmission shaft, the transmission shaft being rotatably connected to the grinding mill, and a gear being fixedly connected to the transmission shaft.

[0012] Preferably, a gear ring is fixedly connected to the connecting shaft, the gear meshes with the gear ring, a first driving component is installed on the grinding mill, and the transmission shaft is driven by the first driving component.

[0013] Preferably, the grinding mill is rotatably connected to an installation shaft, and a grading bin is fixedly connected to the installation shaft, the grading bin being rotatably connected to the grinding mill.

[0014] Preferably, the grinding mill is equipped with a second driving component, and the mounting shaft is driven by the second driving component.

[0015] The beneficial effects of this utility model are as follows: A rotating drum is rotatably connected to the grinding mill, and an adjustment structure is provided on the rotating drum. Multiple adjustment plates are slidably connected to the rotating drum, and a fixed shaft is fixedly connected to the adjustment plate. Ball bearings are rotatably connected to the fixed shaft. A guide rod is fixedly connected to the rotating drum, and a drive block is slidably connected to the guide rod. The drive block is provided with multiple inclined grooves, and the ball bearings roll in cooperation with the grooves. A lead screw is rotatably connected to the rotating drum, and the drive block is threadedly connected to the lead screw. A rotating shaft is rotatably connected to the adjustment plate, and multiple grinding wheels are fixedly connected to the rotating shaft. Through the lead screw drive and the cooperation of the inclined grooves, it can ensure that the spacing between the multiple adjustment plates is uniform, avoiding uneven powder particle size, and can also adjust the position of the grinding wheels to adapt to the grinding requirements of calcium carbonate of different particle sizes. There is no need to replace the grinding wheels, which greatly reduces maintenance costs and downtime. It is suitable for high-precision and continuous production environments and effectively improves grinding quality and efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the connection structure between the mounting shaft and the grinding mill of this utility model;

[0018] Figure 3 for Figure 2The diagram shown is an enlarged view of the structure of part A.

[0019] Figure 4 This is a schematic diagram of the connection structure between the transmission shaft and the gear of this utility model;

[0020] Figure 5 for Figure 4 The diagram shown is an enlarged view of the structure of section B.

[0021] Figure 6 for Figure 4 The diagram shows an enlarged view of section C.

[0022] In the diagram: 1. Grinding mill; 2. Adjustment structure; 201. Adjustment plate; 202. Fixed shaft; 203. Ball bearing; 204. Drive block; 205. Groove; 206. Lead screw; 207. Guide rod; 208. Turntable; 209. Connecting rod; 3. Limiting structure; 301. Limiting shaft; 302. Limiting hole; 303. Pressing block; 304. Fixed ring; 305. Spring; 4. Drive structure; 401. Transmission shaft; 402. Gear; 403. Gear ring; 404. First driving component; 5. Connecting shaft; 6. Rotary drum; 7. Mounting shaft; 8. Grading drum; 9. Second driving component; 10. Rotary shaft; 11. Grinding wheel. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1-6 As shown, a grinding equipment for calcium carbonate production includes a grinding mill 1, a rotating drum 6 rotatably connected to the grinding mill 1, an adjusting structure 2 on the rotating drum 6, the adjusting structure 2 including an adjusting plate 201, multiple adjusting plates 201 slidably connected to the rotating drum 6, a fixed shaft 202 fixedly connected to the adjusting plate 201, ball bearings 203 rotatably connected to the fixed shaft 202, a guide rod 207 fixedly connected to the rotating drum 6, a driving block 204 slidably connected to the guide rod 207, multiple inclined grooves 205 on the driving block 204, the ball bearings 203 rollingly engaging with the grooves 205, a lead screw 206 rotatably connected to the rotating drum 6, the driving block 204 threadedly connected to the lead screw 206, a rotating shaft 10 rotatably connected to the adjusting plate 201, and multiple grinding wheels 11 fixedly connected to the rotating shaft 10.

[0025] As a technical optimization of this utility model, a connecting shaft 5 is fixedly connected to the rotating drum 6, and the connecting shaft 5 is rotatably connected to the grinding mill 1. The lead screw 206 is rotatably connected to the connecting shaft 5. Then, by holding the connecting rod 209, the turntable 208 is rotated. The turntable 208 drives the lead screw 206 fixed to it to rotate within the connecting shaft 5. Because the driving block 204 is threadedly connected to the lead screw 206, and the driving block 204 slides along the guide rod 207 fixed on the rotating drum 6, the guide rod 207 can restrict the driving block 204 from rotating synchronously with the lead screw 206, so that the driving block 204 moves smoothly only along the guide rod 207. The multiple inclined grooves 205 provided on the driving block 204 are in rolling cooperation with the balls 203 on the fixed shaft 202 of the adjusting plate 201. The inclination of the grooves 205 The structure can drive multiple adjusting plates 201 slidably connected on the rotating drum 6 to slide synchronously, so as to achieve precise adjustment of the distance between the adjusting plates 201 and the inner wall of the grinding mill 1. Through the transmission of the lead screw 206 and the cooperation of the inclined roller groove 205, it can not only ensure that the distance between the multiple adjusting plates 201 is uniform and avoid uneven powder particle size caused by inconsistent local gaps, but also achieve fine adjustment of the gap by rotating the turntable 208 to meet the grinding requirements of calcium carbonate powder of different particle sizes. There is no need to replace parts, which greatly reduces maintenance costs and equipment downtime. It is suitable for the use environment in calcium carbonate production where the powder particle size accuracy requirements are high and the production continuity is strong, effectively improving grinding quality and production efficiency. The turntable 208 is fixedly connected to the lead screw 206, and the connecting rod 209 is fixedly connected to the turntable 208.

[0026] As a technical optimization of this utility model, the turntable 208 is fixed by a limiting structure 3. The limiting structure 3 includes a limiting shaft 301. The limiting shaft 301 is slidably connected to the connecting rod 209. The connecting shaft 5 is provided with multiple limiting holes 302. The limiting shaft 301 engages with one of the limiting holes 302. After the gap adjustment is completed, the pressing block 303 is released, the spring 305 resets and pushes the fixing ring 304, causing the limiting shaft 301 to engage with the corresponding limiting hole 302 on the connecting shaft 5, thus re-fixing the turntable 208 and completing the locking, ensuring the gap is stable during subsequent grinding. The fixing ring 304 is fixedly connected to the limiting shaft 301. The fixing ring 304 is slidably connected to the connecting rod 209. A spring 305 is fixedly connected between the fixing ring 304 and the connecting rod 209. The pressing block 303 is fixedly connected to the limiting shaft 301.

[0027] As a technical optimization of this utility model, the connecting shaft 5 is driven by a drive structure 4. The drive structure 4 includes a transmission shaft 401, which is rotatably connected to the grinding mill 1. A gear 402 is fixedly connected to the transmission shaft 401, and a gear ring 403 is fixedly connected to the connecting shaft 5. The gear 402 meshes with the gear ring 403. When the first drive component 404 (preferably a motor) on the grinding mill 1 is started, the first drive component 404 drives the transmission shaft 401 to rotate. The gear 402 on the transmission shaft 401 meshes with the gear ring 403 on the connecting shaft 5. The gear 402 meshes with the mill 1 because the connecting shaft 5 is rotatably connected to the mill 1 and fixed to the rotating drum 6. The meshing transmission of the gear 402 can efficiently drive the connecting shaft 5 and the rotating drum 6 to rotate stably in the mill 1, providing continuous and uniform grinding power to the rotating drum 6. When the rotating drum 6 rotates, the rotating shaft 10 rotatably connected to the adjusting plate 201 drives multiple grinding wheels 11 to rotate synchronously. When the grinding wheels 11 come into contact with the blocky calcium carbonate raw material, they crush and grind the raw material by rotating on their own. The mill 1 is equipped with a first driving component 404, and the transmission shaft 401 is driven by the first driving component 404.

[0028] As a technical optimization of this utility model, a mounting shaft 7 is rotatably connected to the grinding mill 1, and a grading barrel 8 is fixedly connected to the mounting shaft 7. The grading barrel 8 is rotatably connected to the grinding mill 1. When the second driving component 9 (preferably a motor) is started, the second driving component 9 drives the mounting shaft 7 rotatably connected to the grinding mill 1 to rotate. The mounting shaft 7 drives the grading barrel 8 fixed to it to rotate inside the grinding mill 1. The grading barrel 8 can classify and screen the ground calcium carbonate powder in real time. Powder that meets the particle size requirements is discharged through the grading barrel 8, while fine powder that meets the requirements enters the air belt conveyor pipe with the airflow. Coarse powder that does not meet the requirements remains in the grinding mill 1 for further grinding. The second driving component 9 is installed on the grinding mill 1, and the mounting shaft 7 is driven by the second driving component 9.

[0029] In use, the operator first presses the pressing block 303, which moves the limiting shaft 301, causing the fixing ring 304 fixed to the limiting shaft 301 to compress the spring 305. At this time, the limiting shaft 301 disengages from the corresponding limiting hole 302 on the connecting shaft 5, quickly releasing the fixation on the turntable 208. Then, the operator holds the connecting rod 209 and rotates the turntable 208. The turntable 208 drives the lead screw 206 fixed to it to rotate within the connecting shaft 5. Because the driving block 204 is threadedly connected to the lead screw 206, and the driving block 204 slides along the guide rod 207 fixed on the rotating cylinder 6, the guide rod 207 can restrict the driving block 204 from rotating synchronously with the lead screw 206, so that the driving block 204 moves smoothly only along the guide rod 207. The drive block 204 has multiple inclined grooves 205 that roll in cooperation with the balls 203 on the fixed shaft 202 of the adjusting plate 201. The inclined structure of the grooves 205 can push the multiple adjusting plates 201 slidably connected on the rotating drum 6 to slide synchronously, realizing precise adjustment of the distance between the adjusting plates 201 and the inner wall of the grinding mill 1. Through the transmission of the lead screw 206 and the cooperation of the inclined grooves 205, it can not only ensure that the distance between the multiple adjusting plates 201 is uniform, avoiding uneven powder particle size caused by inconsistent local gaps, but also achieve fine adjustment of the gap by rotating the turntable 208, meeting the grinding requirements of calcium carbonate powder of different particle sizes. There is no need to replace parts, which greatly reduces maintenance costs and equipment downtime. It is suitable for calcium carbonate production with high requirements for powder particle size accuracy. The continuous production environment effectively improves grinding quality and production efficiency. After the gap adjustment is completed, the pressing block 303 is released, the spring 305 returns to its original position and pushes the fixing ring 304, causing the limiting shaft 301 to engage with the corresponding limiting hole 302 on the connecting shaft 5, thus re-fixing the turntable 208 and completing the locking process to ensure the gap is stable during subsequent grinding. Then, the first drive component 404 (preferably a motor) on the grinding mill 1 is started. The first drive component 404 drives the transmission shaft 401 to rotate. The gear 402 on the transmission shaft 401 meshes with the gear ring 403 on the connecting shaft 5. Since the connecting shaft 5 is rotatably connected to the grinding mill 1 and fixed to the rotating drum 6, the meshing transmission of the gear 402 can efficiently drive the connecting shaft 5 and the rotating drum 6 within the grinding mill 1. Stable rotation provides continuous and uniform grinding power to the rotating drum 6. When the rotating drum 6 rotates, the rotating shaft 10 connected to the adjusting plate 201 drives multiple grinding wheels 11 to rotate synchronously. When the grinding wheels 11 come into contact with the blocky calcium carbonate raw material, they crush and grind the raw material by their own rotation. At the same time, the second driving component 9 (preferably a motor) is started. The second driving component 9 drives the mounting shaft 7 connected to the grinding mill 1 to rotate. The mounting shaft 7 drives the grading barrel 8 fixed to it to rotate inside the grinding mill 1. The grading barrel 8 can classify and screen the ground calcium carbonate powder in real time. Powder that meets the particle size requirements is discharged through the grading barrel 8, fine powder that meets the requirements enters the air belt conveyor pipe with the airflow, and coarse powder that does not meet the requirements remains in the grinding mill 1 for further grinding.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A grinding equipment for calcium carbonate production, comprising a grinding mill (1), characterized in that: The grinding mill (1) is rotatably connected to a rotating drum (6), and the rotating drum (6) is provided with an adjustment structure (2). The adjustment structure (2) includes an adjustment plate (201). Multiple adjustment plates (201) are slidably connected to the rotating drum (6). A fixed shaft (202) is fixedly connected to the adjustment plate (201). A ball bearing (203) is rotatably connected to the fixed shaft (202). A guide rod (207) is fixedly connected to the rotating drum (6). A drive block (204) is slidably connected to the guide rod (207). Multiple inclined grooves (205) are provided on the drive block (204). The ball bearing (203) rolls with the groove (205). A lead screw (206) is rotatably connected to the rotating drum (6). The drive block (204) is threadedly connected to the lead screw (206). A rotating shaft (10) is rotatably connected to the adjustment plate (201). Multiple grinding wheels (11) are fixedly connected to the rotating shaft (10).

2. The grinding equipment for calcium carbonate production according to claim 1, characterized in that: A connecting shaft (5) is fixedly connected to the rotating drum (6), and the connecting shaft (5) is rotatably connected to the grinding mill (1).

3. The grinding equipment for calcium carbonate production according to claim 2, characterized in that: The lead screw (206) is rotatably connected to the connecting shaft (5), and a turntable (208) is fixedly connected to the lead screw (206), and a connecting rod (209) is fixedly connected to the turntable (208).

4. The grinding equipment for calcium carbonate production according to claim 3, characterized in that: The turntable (208) is fixed by a limiting structure (3), which includes a limiting shaft (301) and the limiting shaft (301) is slidably connected to the connecting rod (209).

5. A grinding equipment for calcium carbonate production according to claim 4, characterized in that: The connecting shaft (5) is provided with multiple limiting holes (302), and the limiting shaft (301) engages with one of the limiting holes (302).

6. A grinding equipment for calcium carbonate production according to claim 5, characterized in that: A fixing ring (304) is fixedly connected to the limiting shaft (301). The fixing ring (304) is slidably connected to the connecting rod (209). A spring (305) is fixedly connected between the fixing ring (304) and the connecting rod (209). A pressing block (303) is fixedly connected to the limiting shaft (301).

7. A grinding equipment for calcium carbonate production according to claim 3, characterized in that: The connecting shaft (5) is driven by the driving structure (4), which includes a transmission shaft (401). The transmission shaft (401) is rotatably connected to the grinding mill (1), and a gear (402) is fixedly connected to the transmission shaft (401).

8. A grinding equipment for calcium carbonate production according to claim 7, characterized in that: A gear ring (403) is fixedly connected to the connecting shaft (5), the gear (402) meshes with the gear ring (403), a first driving component (404) is installed on the grinding mill (1), and the transmission shaft (401) is driven by the first driving component (404).

9. A grinding equipment for calcium carbonate production according to claim 8, characterized in that: The grinding mill (1) is rotatably connected to an installation shaft (7), and a grading barrel (8) is fixedly connected to the installation shaft (7). The grading barrel (8) is rotatably connected to the grinding mill (1).

10. A grinding equipment for calcium carbonate production according to claim 9, characterized in that: The grinding mill (1) is equipped with a second drive component (9), and the mounting shaft (7) is driven by the second drive component (9).

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