Cement combined grinding device

Abstract

The utility model relates to cement grinding equipment technical field, concretely is cement combined grinding device, including machine body, be provided with grinding mechanism and cooling assembly in machine body, and grinding mechanism includes fixed grinding cover, dynamic grinding assembly and grinding motor, and dynamic grinding assembly includes dynamic grinding head, bung and flow guide assembly, and cooling assembly includes fixed sleeve and air pump. The cement combined grinding device, through the cooling assembly that sets up, makes air pump to pump the outside airflow to dynamic grinding assembly, and the air is guided to flow in dynamic grinding head after through flow guide assembly and is discharged, and this structure can take away the heat that dynamic grinding assembly produced in the grinding process, makes equipment keep in the suitable working temperature range, reduces the component wear and tear due to high temperature, prolongs equipment life.

Description

Technical Field

[0001] This utility model relates to the technical field of cement grinding equipment, specifically a cement combined grinding device. Background Technology

[0002] Cement grinding is a key technology in modern cement production. By efficiently integrating crushing and grinding processes, it uses mechanical force to refine cement raw materials to the required particle size. With its compact process and stable production capacity, this technology is widely used in the building materials industry, providing crucial support for infrastructure construction.

[0003] Utility model patent CN217962650U discloses a cement combined grinding device, which includes a base plate, a receiving shell, a grinding sleeve, and a pressing component. A drive motor is installed on the top of the base plate, and a connecting rod is connected to the output end of the drive motor. The top of the connecting rod is connected to a grinding element through a rotating rod. The inner wall of the grinding sleeve is conical, and the outer wall of the grinding element is adapted to the inner wall of the grinding sleeve. The grinding element is disposed inside the grinding sleeve. A dispersing frame is set on the outer surface of the rotating rod and below the grinding sleeve. This device can achieve fine grinding of cement through the cooperation between the drive motor, the connecting rod, the grinding element, and the grinding sleeve. The pressing component can improve the grinding efficiency of cement, and the dispersing frame can disperse the ground cement, thereby improving the quality of the ground cement.

[0004] During the cement grinding process, the grinding parts and the grinding sleeve in this cement combined grinding device generate a large amount of heat due to prolonged friction. Due to the lack of an effective heat dissipation structure, the heat cannot be dissipated in time, which easily leads to an increase in equipment temperature, accelerates the wear of grinding parts, and reduces the service life of the equipment. In view of this, we propose a cement combined grinding device. Utility Model Content

[0005] The purpose of this invention is to provide a cement grinding device to solve the problem mentioned in the background art of accelerated wear of grinding components due to increased temperature during the grinding process, which reduces the service life of the equipment.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A cement grinding device includes a body, in which a grinding mechanism for grinding cement is disposed. The grinding mechanism includes a fixed grinding sleeve fixed in the body, a rotating grinding assembly rotatably sleeved inside the fixed grinding sleeve, and a grinding motor fixedly installed at the bottom of the body. The rotating grinding assembly includes a rotating grinding head for grinding, a cap fixed to the top of the rotating grinding head, and a flow guiding assembly disposed inside the rotating grinding head. The outer wall of the rotating grinding head and the inner wall of the fixed grinding sleeve cooperate to form a grinding space. The body also includes a cooling assembly for air cooling the rotating grinding assembly. The cooling assembly includes a fixed sleeve fixed inside the body and coaxial with the rotating grinding assembly, and an air pump installed outside the body. The fixed sleeve is disposed at the bottom of the rotating grinding assembly. The air pump pumps external airflow into the rotating grinding assembly, and the flow guiding assembly guides the air pumped by the air pump to flow within the rotating grinding assembly.

[0008] Preferably, a top cover is installed at the top of the machine body, a feeding hopper is provided at the top of the top cover, a discharge pipe is provided at the bottom of the machine body, and a fixing plate for fixing the air pump is provided on the outer surface of the machine body.

[0009] In this setup, the feed hopper facilitates material addition, the discharge pipe enables finished product output, and the fixed base plate ensures stable installation of the air pump.

[0010] Preferably, the interior of the moving grinding head is hollow, and the output shaft of the grinding motor rotates through the fixed sleeve and is coaxially and fixedly connected to the bottom end of the moving grinding head;

[0011] In this design, the hollow structure provides a channel for airflow and heat dissipation, while the coaxial connection ensures stable rotation and grinding of the moving grinding head.

[0012] Preferably, a plurality of venting grooves are provided on the bottom end surface of the moving grinding head, with the axis of the moving grinding head as the center, and the venting grooves are connected to the interior of the moving grinding head;

[0013] In this configuration, the annularly distributed ventilation grooves ensure continuous ventilation and heat dissipation as the moving grinding head rotates.

[0014] Preferably, the flow guiding assembly includes a fixed column fixed at the center of the bottom wall inside the moving grinding head, a plurality of first guide cones in the shape of an annular plate, a plurality of second guide cones in the shape of an annular plate, and a partition. The first guide cones and the second guide cones are staggered in the vertical direction. The first guide cones are inclined downwards, and one end of the first guide cone is fixed to the inner wall of the moving grinding head, while the other end is connected to the outer peripheral wall of the fixed column. A through hole for gas to pass through is opened on the other end of the first guide cone. The second guide cones are inclined downwards, and one end of the second guide cone has a gap with the inner wall of the moving grinding head, while the other end is fixed to the outer peripheral wall of the fixed column. The partition vertically divides the flow guiding assembly into left and right halves, so that the flow guiding assembly forms an alternating flow guiding channel inside the fixed grinding sleeve.

[0015] In this setting, the airflow guide component directs the airflow evenly, effectively carrying away the heat generated by the grinding component.

[0016] Preferably, the fixing sleeve has a cylindrical structure, and a plurality of connecting plates are fixed between the outer peripheral surface of the fixing sleeve and the inner wall of the machine body;

[0017] In this configuration, the connecting plate ensures that the fixing sleeve is securely installed inside the machine body.

[0018] Preferably, the top end of the fixed sleeve is in contact with and fits against the bottom end of the moving grinding head. Two through holes are symmetrically opened on the top end of the fixed sleeve, and the positions of the two through holes correspond to the positions of the air vent grooves. Two symmetrical connecting tubes are inserted into the outer wall of the fixed sleeve. The inner ends of the two connecting tubes are respectively connected to the bottom of the two through holes. The outer ends of the two connecting tubes penetrate the machine body and extend to the outside of the machine body. The outer end of one of the connecting tubes is connected to the air pump.

[0019] In this configuration, the connecting pipe, through hole, and vent groove form a complete airflow channel to achieve air cooling of the moving grinding components.

[0020] Preferably, an annular groove is provided at the outer peripheral edge of the top of the fixed sleeve, and a sealing ring is provided in the annular groove, the sealing ring forming a seal between the moving grinding head and the fixed sleeve;

[0021] In this setup, the sealing ring is used to prevent airflow leakage and to prevent cement powder from entering the cooling components.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] This cement grinding unit, through its cooling components, uses an air pump to deliver external airflow into the moving grinding assembly. The airflow is then guided by a flow guide component to flow through the moving grinding head before being discharged. This structure can remove the heat generated by the moving grinding assembly during the grinding process, keeping the equipment within a suitable operating temperature range, reducing component wear caused by high temperatures, and extending the service life of the equipment. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is an exploded view of the overall structure of this utility model;

[0026] Figure 3 This is an exploded view of the moving grinding assembly in this utility model;

[0027] Figure 4 This is a cross-sectional view of the moving grinding assembly in this utility model;

[0028] Figure 5 This is an exploded view of the cooling component in this utility model;

[0029] The meanings of the labels in the diagram are as follows:

[0030] 100. Machine body; 110. Top cover; 111. Feed hopper; 120. Discharge pipe; 130. Fixed base plate;

[0031] 200. Grinding mechanism; 210. Fixed grinding sleeve; 220. Moving grinding assembly; 221. Moving grinding head; 221a. Ventilation groove; 222. Cover; 223. Flow guiding assembly; 223a. Fixed column; 223b. First guide cone plate; 223c. Second guide cone plate; 223d. Partition plate; 230. Grinding motor;

[0032] 300. Cooling assembly; 310. Fixing sleeve; 311. Through hole; 312. Connecting pipe; 313. Connecting plate; 314. Sealing ring; 320. Air pump. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0034] Please see Figures 1-5A cement grinding device includes a body 100, in which a grinding mechanism 200 for grinding cement is disposed. The grinding mechanism 200 includes a fixed grinding sleeve 210 fixed inside the body 100, a moving grinding assembly 220 rotatably sleeved inside the fixed grinding sleeve 210, and a grinding motor 230 fixedly installed at the bottom of the body 100. The moving grinding assembly 220 includes a moving grinding head 221 for grinding, a cover 222 fixed to the top of the moving grinding head 221, and a flow guiding assembly 223 disposed inside the moving grinding head 221. The moving grinding head 221 is rotatably disposed inside the fixed grinding sleeve 210, and the outer wall of the moving grinding head 221 and the inner wall of the fixed grinding sleeve 210 cooperate to form a grinding space. The grinding motor 230 provides power for grinding, and the three work together to achieve the grinding of cement.

[0035] The machine body 100 is equipped with a top cover 110, and the top of the top cover 110 is provided with a feed hopper 111. The feed hopper 111 facilitates the addition of cement materials, allowing the materials to enter the grinding space smoothly. The bottom of the machine body 100 is provided with a discharge pipe 120, which is used to discharge the ground cement powder and realize the output of materials.

[0036] like Figure 2 and Figure 4 As shown, in this invention, the interior of the moving grinding head 221 is hollow, providing space for the flow of cooling air and facilitating heat dissipation during the grinding process. The output shaft of the grinding motor 230 rotates through the fixed sleeve 310 and is coaxially and fixedly connected to the bottom end of the moving grinding head 221, allowing the moving grinding head 221 to rotate under the drive of the grinding motor 230, thus realizing the grinding operation. Several venting grooves 221a are arranged in a ring at equal intervals on the bottom surface of the moving grinding head 221, centered on its axis. These venting grooves 221a connect to the interior of the moving grinding head 221 and serve as inlets and outlets for cooling airflow, allowing external airflow to enter the interior of the moving grinding head 221 and carry away the heat generated during grinding.

[0037] like Figure 4As shown, specifically, the flow guiding assembly 223 includes a fixed post 223a fixed at the center of the bottom wall inside the moving grinding head 221, a plurality of first guide cone plates 223b in an annular plate structure, a plurality of second guide cone plates 223c in an annular plate structure, and a partition plate 223d. The first guide cone plates 223b and the second guide cone plates 223c are staggered in the vertical direction. The first guide cone plates 223b are inclined downward, and one end of the first guide cone plate 223b is fixed to the inner wall of the moving grinding head 221, while the other end is connected to the outer peripheral wall of the fixed post 223a. The other end of the cone plate 223b is provided with a through hole for gas to pass through. The second guide cone plate 223c is inclined downward, and there is a gap between one end of the second guide cone plate 223c and the inner wall of the moving grinding head 221. The other end is fixed to the outer peripheral wall of the fixed column 223a. The partition plate 223d vertically divides the flow guiding assembly 223 into left and right halves, so that the flow guiding assembly 223 forms an S-shaped alternating flow guiding channel in the fixed grinding sleeve 210, guiding the cooling airflow to flow evenly in the moving grinding head 221, carrying away the heat generated by the moving grinding assembly 220 during the grinding process, and avoiding damage to the equipment due to high temperature.

[0038] like Figure 1 , Figure 2 and Figure 5 As shown, the machine body 100 is further provided with a cooling assembly 300 for air cooling of the moving grinding assembly 220. The cooling assembly 300 includes a fixing sleeve 310 fixed inside the machine body 100 and coaxial with the moving grinding assembly 220, and an air pump 320 installed outside the machine body 100. The fixing sleeve 310 is located at the bottom of the moving grinding assembly 220. The air pump 320 pumps external airflow into the moving grinding assembly 220. The flow guide assembly 223 is used to guide the air delivered by the air pump 320 to flow inside the moving grinding assembly 220.

[0039] The fixing sleeve 310 has a cylindrical structure. Several connecting plates 313 are fixed between the outer peripheral surface of the fixing sleeve 310 and the inner wall of the body 100. The fixing sleeve 310 and the connecting plates 313 cooperate to ensure the stable installation of the cooling component 300 in the body 100. The air pump 320 provides power for the delivery of cooling airflow.

[0040] like Figure 5 As shown, the top end of the fixed sleeve 310 is in contact with the bottom end of the moving grinding head 221. Two through holes 311 are symmetrically opened on the top end of the fixed sleeve 310. The positions of the two through holes 311 correspond to the positions of the air vent 221a. Two symmetrical connecting pipes 312 are inserted into the outer wall of the fixed sleeve 310. The inner ends of the two connecting pipes 312 are respectively connected to the bottom of the two through holes 311. The outer ends of the two connecting pipes 312 penetrate the machine body 100 and extend to the outside of the machine body 100. The outer end of one of the connecting pipes 312 is connected to the air pump 320.

[0041] Preferably, a mounting plate 130 for fixing the air pump 320 is provided on the outer surface of the body 100. The connecting pipe 312, the through hole 311 and the venting groove 221a form a cooling airflow delivery channel. The flow guiding component 223 is used to guide the air delivered by the air pump 320 to flow in the moving grinding assembly 220. When the air pump 320 is working, it pumps the external airflow into the moving grinding head 221 through the connecting pipe 312, the through hole 311 and the venting groove 221a. The flow guiding component 223 guides the air to flow in the moving grinding head 221 and discharge it to the outside through the venting groove 221a, the through hole 311 and the connecting pipe 312 on the opposite side. This allows the air pump 320 to pump the external airflow into the moving grinding assembly 220 and then discharge it to the outside, thereby achieving air cooling of the moving grinding assembly 220. The multiple venting grooves 221a distributed in a ring ensure that the moving grinding head 221 is always connected to the external airflow during high-speed rotation, ensuring that the cooling airflow can continuously and stably enter the interior of the moving grinding head 221. Even when the moving grinding head 221 is constantly rotating, some of the venting grooves 221a are always in a suitable position to connect with the through hole 311, achieving uninterrupted ventilation and heat dissipation, and avoiding heat accumulation.

[0042] like Figure 5 As shown, it is worth noting that an annular groove is provided at the outer peripheral edge of the top of the fixed sleeve 310, and a sealing ring 314 is provided in the annular groove. The sealing ring 314 forms a seal between the moving grinding head 221 and the fixed sleeve 310. The sealing ring 314 can prevent the cooling airflow from leaking, ensure the cooling effect, and at the same time prevent cement powder from entering the cooling component 300 and affecting its normal operation.

[0043] It is worth noting that the grinding motor 230 and air pump 320 involved in this utility model are both existing conventional technologies, and will not be described in detail here.

[0044] In this embodiment of the cement combined grinding device, the cement material is first poured into the machine body 100 through the feed hopper 111, and the material enters the grinding space formed by the outer wall of the moving grinding head 221 and the inner wall of the fixed grinding sleeve 210. Then, the grinding motor 230 is started, and the grinding motor 230 drives the moving grinding head 221 to rotate. The moving grinding head 221 and the fixed grinding sleeve 210 cooperate to grind the cement into powder. The ground cement powder is discharged through the discharge pipe 120. Finally, the air pump 320 is started, and the air pump 320 pumps the external airflow into the moving grinding head 221 through the connecting pipe 312, the through hole 311 and the air vent 221a. Under the guidance of the flow guide component 223, the airflow flows evenly in the moving grinding head 221 and is discharged outward through the air vent 221a, the through hole 311 and the connecting pipe 312 on the opposite side, taking away the heat generated by grinding and completing the cooling process of the moving grinding component 220.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A cement grinding apparatus, comprising a body (100), characterized in that: The machine body (100) is provided with a grinding mechanism (200) for grinding cement. The grinding mechanism (200) includes a fixed grinding sleeve (210) fixed in the machine body (100), a moving grinding assembly (220) rotatably sleeved inside the fixed grinding sleeve (210), and a grinding motor (230) fixedly installed at the bottom of the machine body (100). The moving grinding assembly (220) includes a moving grinding head (221) for grinding, a cover (222) fixed to the top of the moving grinding head (221), and a flow guiding assembly (223) disposed inside the moving grinding head (221). The outer wall of the moving grinding head (221) and the inner wall of the fixed grinding sleeve (210) are connected. The grinding space is formed by the cooperation between the components. The machine body (100) is also provided with a cooling component (300) for air cooling of the moving grinding component (220). The cooling component (300) includes a fixed sleeve (310) fixed inside the machine body (100) and coaxial with the moving grinding component (220) and an air pump (320) installed outside the machine body (100). The fixed sleeve (310) is located at the bottom of the moving grinding component (220). The air pump (320) pumps external airflow into the moving grinding component (220). The flow guide component (223) is used to guide the air delivered by the air pump (320) to flow in the moving grinding component (220).

2. The cement combined grinding device according to claim 1, characterized in that: The top of the machine body (100) is equipped with a top cover (110), the top of the top cover (110) is provided with a feed hopper (111), the bottom of the machine body (100) is provided with a discharge pipe (120), and a fixing plate (130) for fixing the air pump (320) is provided on the outer surface of the machine body (100).

3. The cement combined grinding device according to claim 1, characterized in that: The interior of the moving grinding head (221) is hollow. The output shaft of the grinding motor (230) rotates through the fixed sleeve (310) and is coaxially fixedly connected to the bottom end of the moving grinding head (221).

4. The cement combined grinding device according to claim 1, characterized in that: On the bottom surface of the moving grinding head (221), there are a number of air vents (221a) arranged in a ring with equal spacing around the axis of the moving grinding head (221). The air vents (221a) are connected to the interior of the moving grinding head (221).

5. The cement combined grinding device according to claim 1, characterized in that: The flow guiding assembly (223) includes a fixed column (223a) fixed at the center of the bottom wall inside the moving grinding head (221), a plurality of first guide cones (223b) in an annular plate structure, a plurality of second guide cones (223c) in an annular plate structure, and a partition (223d). The first guide cones (223b) and the second guide cones (223c) are staggered in the vertical direction. The first guide cones (223b) are inclined downward, and one end of the first guide cones (223b) is fixed to the moving grinding head (221). On the inner wall, the other end is connected to the outer peripheral wall of the fixed column (223a). The other end of the first guide cone plate (223b) is provided with a through hole for gas to pass through. The second guide cone plate (223c) is inclined downward, and there is a gap between one end of the second guide cone plate (223c) and the inner wall of the moving grinding head (221). The other end is fixed to the outer peripheral wall of the fixed column (223a). The partition plate (223d) vertically divides the flow guiding assembly (223) into left and right halves, so that the flow guiding assembly (223) forms an alternating flow guiding channel in the fixed grinding sleeve (210).

6. The cement combined grinding device according to claim 1, characterized in that: The fixing sleeve (310) has a cylindrical structure, and a number of connecting plates (313) are fixed between the outer peripheral surface of the fixing sleeve (310) and the inner wall of the body (100).

7. The cement combined grinding device according to claim 4, characterized in that: The top end of the fixed sleeve (310) is in contact with the bottom end of the moving grinding head (221). The top end of the fixed sleeve (310) has two through holes (311) symmetrically opened. The positions of the two through holes (311) correspond to the positions of the air vent (221a). Two symmetrical connecting pipes (312) are inserted into the outer wall of the fixed sleeve (310). The inner ends of the two connecting pipes (312) are respectively connected to the bottom of the two through holes (311). The outer ends of the two connecting pipes (312) penetrate the machine body (100) and extend to the outside of the machine body (100). The outer end of one of the connecting pipes (312) is connected to the air pump (320).

8. The cement combined grinding device according to claim 1, characterized in that: An annular groove is provided at the outer peripheral edge of the top of the fixed sleeve (310), and a sealing ring (314) is provided in the annular groove. The sealing ring (314) forms a seal between the moving grinding head (221) and the fixed sleeve (310).

Images