Grinding equipment for limestone production
By employing a wobbly grinding roller and a blower back-blowing technology in the limestone grinding device, the problem of material accumulation caused by fixed grinding rollers was solved, resulting in more efficient grinding and more uniform material fineness.
Patent Information
- Application Number
- CN202422376842.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-09-29
AI Technical Summary
In existing limestone grinding devices, the fixed grinding rollers cause material to accumulate at the bottom, resulting in uneven grinding and varying degrees of coarseness.
It adopts a wobbly grinding roller structure and a blower back-blowing technology. The grinding roller assembly connected by springs increases the grinding range, and the blower uses a blower to back-blow the residual material to the first grinding disc for continued grinding.
It improves the efficiency and uniformity of limestone grinding, ensures consistent material fineness, and reduces unevenness in particle size.
Smart Images

Figure CN223491093U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of limestone production technology, specifically to a grinding equipment for limestone production. Background Technology
[0002] Calcium carbonate is an inorganic compound with the chemical formula CaCO3. It is commonly known as limestone, stone powder, marble, etc. Calcium carbonate is neutral, basically insoluble in water, but soluble in hydrochloric acid. It is one of the most common substances on Earth, found in rocks such as aragonite, calcite, chalk, limestone, marble, and travertine. It is also a major component of animal bones or shells. Calcium carbonate is also an important building material with a wide range of industrial applications.
[0003] The processing and use of calcium carbonate often requires grinding. For example, crushing and grinding is the last step in the production of light calcium carbonate. Existing limestone grinding equipment adds the material to the grinding disc and uses grinding rollers to grind the material. However, since the grinding rollers are generally fixed, the material at the bottom accumulates and cannot be properly ground, resulting in inconsistent material coarseness. Utility Model Content
[0004] The purpose of this utility model is to provide a grinding equipment for limestone production to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a grinding equipment for limestone production, comprising a housing, a base being provided at the bottom of the housing, and further comprising:
[0006] A grinding component is installed on the outside of the base to crush materials. A first grinding disc is provided on the outside of the grinding component to store the materials. A discharge component is provided at the bottom of the first grinding disc to discharge the ground materials.
[0007] A fixed cylinder is installed on the outside of the box body. The outside of the fixed cylinder is provided with a feeding hopper for feeding and a grinding roller assembly for the initial grinding treatment of the material. A blower is provided on the outside of the box body to back-blow the material.
[0008] Preferably, the grinding assembly includes a first motor disposed on the outside of the housing, a first bevel gear disposed at the output end of the first motor, a second bevel gear disposed on the outside of the first bevel gear, a connecting shaft disposed on the inner ring of the second bevel gear, a connecting block disposed on the outside of the connecting shaft, a connecting rod disposed inside the connecting block, and a grinding roller disposed at the bottom of the connecting rod.
[0009] Preferably, the connecting shaft is located on the outer side of the first grinding disc, and a spring is provided between the connecting rod and the connecting block.
[0010] Preferably, the discharge assembly includes a sleeve disposed on the outside of the connecting shaft, a discharge pipe disposed on the outside of the sleeve, and a filter screen disposed inside the sleeve.
[0011] Preferably, the fixed cylinder is fixedly installed on the outside of the box body, and the feed hopper is connected to the top of the fixed cylinder.
[0012] Preferably, the grinding roller assembly includes a second motor disposed at the top of the fixed cylinder, a rotating shaft disposed at the output end of the second motor, a pressure roller disposed on the outer side of the rotating shaft, a second grinding disc disposed inside the fixed cylinder, and a discharge pipe disposed on the outer side of the second grinding disc.
[0013] Preferably, the hair dryer is fixedly installed on the outside of the base, and the air outlet of the hair dryer is connected to an air blowing pipe, which is connected to a sleeve.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] This invention uses a pressure roller to crush the material in the second grinding disc. The crushed material is discharged into the first grinding disc through a discharge pipe. A first motor drives a first bevel gear to rotate, which in turn drives a second bevel gear to rotate. The second bevel gear drives a connecting shaft to rotate, which in turn drives a connecting rod and a grinding roller to rotate, thus grinding the material. Because the connecting rod is mounted in a connecting block and connected to a spring, the grinding roller will shake when it comes into contact with the material, thereby increasing the grinding range and improving grinding efficiency. An air blower supplies air to the air pipe, blowing the material remaining on the filter screen into the first grinding disc for further grinding. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the grinding assembly structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the connection structure between the connecting block and the grinding roller of this utility model;
[0019] Figure 4 This is a schematic diagram of the grinding roller assembly structure of this utility model;
[0020] Figure 5 This is a schematic diagram of the material discharge assembly structure of this utility model.
[0021] In the diagram: 1. Housing; 2. Base; 3. Grinding assembly; 301. First motor; 302. First bevel gear; 303. Second bevel gear; 304. Connecting shaft; 305. Connecting block; 306. Connecting rod; 307. Grinding roller; 4. First grinding disc; 5. Spring; 6. Discharge assembly; 601. Sleeve; 602. Discharge pipe; 603. Filter screen; 7. Fixed cylinder; 8. Feed hopper; 9. Grinding roller assembly; 901. Second motor; 902. Rotating shaft; 903. Pressure roller; 904. Second grinding disc; 905. Discharge pipe; 10. Blower; 11. Air blowing pipe. Detailed Implementation
[0022] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.
[0023] Please see Figure 1-5 As shown, a grinding equipment for limestone production includes a housing 1, with a base 2 at the bottom of the housing 1 for support and fixation. It also includes: a grinding assembly 3 disposed on the outside of the base 2 for crushing materials; a first grinding disc 4 disposed on the outside of the grinding assembly 3 for storing materials; the grinding assembly 3 and the first grinding disc 4 for fine grinding of the materials; a discharge assembly 6 disposed at the bottom of the first grinding disc 4 for discharging the ground materials; a fixed cylinder 7 installed on the outside of the housing 1; a feeding hopper 8 and a grinding roller assembly 9 for initial grinding of the materials disposed on the outside of the fixed cylinder 7; and a blower 10 disposed on the outside of the housing 1 for back-blowing the materials; the blower 10 for back-blowing the materials remaining on the discharge assembly 6 back into the first grinding disc 4 for further grinding.
[0024] The grinding assembly 3 includes a first motor 301 disposed on the outside of the housing 1, the first motor 301 being fixedly mounted on the housing 1, a first bevel gear 302 disposed at the output end of the first motor 301, the first bevel gear 302 being fixedly mounted on the output end of the first motor 301, a second bevel gear 303 disposed on the outside of the first bevel gear 302, the second bevel gear 303 meshing with the outside of the first bevel gear 302, and a connecting shaft 304 disposed on the inner ring of the second bevel gear 303, the connecting shaft 304 being rotatably mounted in the housing 1. It is fixedly connected to the inner ring of the second bevel gear 303. A connecting block 305 is provided on the outer side of the connecting shaft 304. The connecting block 305 is fixedly installed on the connecting shaft 304. A connecting rod 306 is provided inside the connecting block 305. The connecting rod 306 is rotatably installed inside the connecting block 305. A grinding roller 307 is provided at the bottom of the connecting rod 306. The grinding roller 307 is fixedly installed at the bottom of the connecting rod 306. The connecting shaft 304 is located on the outer side of the first grinding disc 4. A spring 5 is provided between the connecting rod 306 and the connecting block 305. The first motor 301 drives the first bevel gear 302 to rotate, the first bevel gear 302 drives the second bevel gear 303 to rotate, the second bevel gear 303 drives the connecting shaft 304 to rotate, and the connecting shaft 304 drives the connecting rod 306 and the grinding roller 307 to rotate, thus grinding the material. Since the connecting rod 306 is rotatably installed in the connecting block 305 and connected to the spring 5, the grinding roller 307 will shake when it comes into contact with the material, thereby increasing the grinding range of the material and improving the grinding efficiency.
[0025] The discharge assembly 6 includes a sleeve 601 disposed outside the connecting shaft 304. The sleeve 601 is fitted onto the outside of the connecting shaft 304 and rotates with it. A discharge pipe 602 is disposed outside the sleeve 601 and is connected to one side of the sleeve 601. A filter screen 603 is disposed inside the sleeve 601 and is fixedly installed inside the sleeve 601. The ground material is filtered through the filter screen 603 and falls into the sleeve 601 before being discharged through the discharge pipe 602.
[0026] Preferably, the fixed cylinder 7 is fixedly installed on the outside of the housing 1, and the feed hopper 8 is connected to the top of the fixed cylinder 7. Material is added to the fixed cylinder 7 through the feed hopper 8.
[0027] The grinding roller assembly 9 includes a second motor 901 mounted on the top of the fixed cylinder 7. The second motor 901 is fixedly mounted on the top of the fixed cylinder 7. A rotating shaft 902 is mounted on the output end of the second motor 901. A pressure roller 903 is mounted on the outer side of the rotating shaft 902 and is rotatably mounted on a bracket. The bracket is fixedly mounted on the rotating shaft 902. A second grinding disc 904 is mounted inside the fixed cylinder 7. The second grinding disc 904 is conical and fixedly mounted inside the fixed cylinder 7. A discharge pipe 905 is mounted on the outer side of the second grinding disc 904 and is fixedly mounted on the bottom of the second grinding disc 904, extending to the upper part of the first grinding disc 4. The second motor 901 drives the rotating shaft 902 to rotate, which in turn drives the pressure roller 903 to crush the material in the second grinding disc 904. The crushed material is then discharged into the first grinding disc 4 through the discharge pipe 905.
[0028] The blower 10 is fixedly installed on the outside of the base 2. The air outlet of the blower 10 is connected to the air pipe 11, which is connected to the sleeve 601. The blower 10 supplies air to the air pipe 11, blowing the material remaining on the filter screen 603 into the first grinding disc 4 for further grinding.
[0029] Working principle: Material is fed from the feed hopper 8 into the fixed cylinder 7. The second motor 901 drives the rotating shaft 902 to rotate, and the rotating shaft 902 drives the pressure roller 903 to crush the material in the second grinding disc 904. The crushed material is discharged into the first grinding disc 4 through the discharge pipe 905. The first motor 301 drives the first bevel gear 302 to rotate, the first bevel gear 302 drives the second bevel gear 303 to rotate, the second bevel gear 303 drives the connecting shaft 304 to rotate, and the connecting shaft 304 drives the connecting rod 306 and the grinding roller 307 to rotate, thus grinding the material. Since the connecting rod 306 is rotatably installed in the connecting block 305 and connected to the spring 5, the grinding roller 307 will shake when it comes into contact with the material, thereby increasing the grinding range and improving the grinding efficiency. Air is supplied to the air pipe 11 by the blower 10, and the material remaining on the filter screen 603 is blown into the first grinding disc 4 for further grinding.
[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.
Claims
1. A grinding equipment for limestone production, comprising a housing (1), wherein a base (2) is provided at the bottom of the housing (1), characterized in that, Also includes: A grinding component (3) is set on the outside of the base (2) to crush materials. A first grinding disc (4) for storing materials is set on the outside of the grinding component (3). A discharge component (6) for discharging the ground materials is set on the bottom of the first grinding disc (4). A fixed cylinder (7) is installed on the outside of the housing (1). The outside of the fixed cylinder (7) is provided with a feeding hopper (8) for feeding and a grinding roller assembly (9) for the initial grinding treatment of the material. The outside of the housing (1) is provided with a blower (10) for back-blowing the material.
2. The grinding equipment for limestone production according to claim 1, characterized in that: The grinding assembly (3) includes a first motor (301) disposed on the outside of the housing (1). The output end of the first motor (301) is provided with a first bevel gear (302). A second bevel gear (303) is disposed on the outside of the first bevel gear (302). A connecting shaft (304) is disposed on the inner ring of the second bevel gear (303). A connecting block (305) is disposed on the outside of the connecting shaft (304). A connecting rod (306) is disposed inside the connecting block (305). A grinding roller (307) is disposed at the bottom of the connecting rod (306).
3. The grinding equipment for limestone production according to claim 2, characterized in that: The connecting shaft (304) is located on the outside of the first grinding disc (4), and a spring (5) is provided between the connecting rod (306) and the connecting block (305).
4. A grinding equipment for limestone production according to claim 2, characterized in that: The discharge assembly (6) includes a sleeve (601) disposed outside the connecting shaft (304), a discharge pipe (602) disposed outside the sleeve (601), and a filter screen (603) disposed inside the sleeve (601).
5. A grinding equipment for limestone production according to claim 1, characterized in that: The fixed cylinder (7) is fixedly installed on the outside of the box body (1), and the feed hopper (8) is connected to the top of the fixed cylinder (7).
6. A grinding equipment for limestone production according to claim 4, characterized in that: The grinding roller assembly (9) includes a second motor (901) disposed at the top of the fixed cylinder (7), a rotating shaft (902) disposed at the output end of the second motor (901), a pressure roller (903) disposed on the outside of the rotating shaft (902), a second grinding disc (904) disposed inside the fixed cylinder (7), and a discharge pipe (905) disposed on the outside of the second grinding disc (904).
7. A grinding equipment for limestone production according to claim 1, characterized in that: The hair dryer (10) is fixedly installed on the outside of the base (2). The air outlet of the hair dryer (10) is connected to the air blowing pipe (11), and the air blowing pipe (11) is connected to the sleeve (601).