Cement grinding device

Abstract

The utility model relates to the technical field of grinding devices, and discloses a cement grinding device which comprises a support, a supporting ring, a rotating mechanism, a roller and a feeding hopper, a rolling cavity is formed in the end, away from the feeding hopper, of the roller in a penetrating mode, a plurality of air inlets are formed in the end, close to the feeding hopper, of the rolling cavity in a penetrating mode, and a sealing cover is connected to the end, away from the feeding hopper, of the rolling cavity. The upper surface of the support is connected with an air suction mechanism, the output end of the air suction mechanism is connected with a rotating ring, the rotating ring sleeves and is rotationally connected to the outer wall of the roller, the inner wall of the rotating ring is provided with an annular cavity, the annular cavity communicates with the air inlets, and the inner wall of the rolling cavity is connected with a conveying assembly. According to the cement grinding device, after a user grinds a cement raw material through the roller, the roller can be continuously driven to rotate through the rotating mechanism, and air suction is performed through the air suction mechanism, so that spiral conveying is formed in the rolling cavity, and then the cement raw material crushed in the rolling cavity can be discharged from one end of the raw material feeding hopper; the efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of powder grinding devices, in particular to a cement powder grinding device. Background Art

[0002] A cement powder grinding device, also known as a cement grinding equipment or a cement mill, is a mechanical device used to grind cement raw materials (mainly cement clinker, sometimes including gypsum and other additives) into powder of a certain fineness to produce the final product. This process is one of the key steps in cement production and directly affects the performance and quality of cement. Most common cement powder grinding devices use ball mills.

[0003] Currently, the patent with the publication number of CN220443989U discloses a cement ball mill, which relates to the technical field of ball mills. Specifically, it includes a three-dimensional support. The three-dimensional support is composed of two lateral C-shaped plates and two longitudinal C-shaped plates on both sides. In the middle of the surfaces of the two longitudinal C-shaped plates on both sides of the three-dimensional support, a support seat is fixedly installed. On both sides of the top surface of one side of the support seat, rollers are movably connected through rotating shafts. Through the outer ring gear, the inner ring gear and the guide panel, the rotation of the ball milling drum will cause the inner ring gear fixed inside to rotate. The sawteeth on its inner arc surface will mesh and rotate with the columnar transmission gear. Secondly, it will synchronously drive the outer ring gear in the middle to rotate synchronously. Secondly, one side of the outer ring gear is movably connected with the ball milling drum through a rotating rod. When the outer ring gear rotates, the guide panel fixed inside will polish and disperse the cement powder, and the symmetrical guide panels will polish the freely falling cement back and forth, avoiding the situation that the grinding efficiency is not high due to simply relying on the self-gravity of the grinding balls.

[0004] However, the following problems still exist in the above-mentioned cement powder grinding device:

[0005] After the current cement ball mill grinds the cement raw materials, it is necessary to control the rotation of the cylinder again to discharge the materials. However, the inside of the cylinder of the current cement ball mill does not have the function of pushing the cement powder from the inside of the cylinder to the discharge port, which results in a long time for discharging materials, thereby reducing the production efficiency. Content of the Utility Model

[0006] Aiming at the deficiencies of the prior art, the utility model provides a cement powder grinding device. After the user grinds the cement raw materials through the roller, the roller can continue to rotate driven by the rotating mechanism, and the air is sucked by the air suction mechanism, so that a spiral conveying is formed inside the rolling cavity, and then the crushed cement raw materials inside the rolling cavity can be discharged from one end of the raw material feeding hopper, which is convenient, fast and efficient.

[0007] The utility model provides the following technical solution: A cement grinding device, comprising a bracket, a support ring and a rotating mechanism mounted on the upper surface of the bracket, a roller mounted between the support ring and the rotating mechanism, and a feed hopper mounted at one end of the roller. A rolling cavity is formed through the end of the roller far away from the feed hopper, and a plurality of air inlets are formed through the end of the rolling cavity close to the feed hopper. A sealing cover is connected to the end of the rolling cavity far away from the feed hopper. The upper surface of the bracket is connected with an air suction mechanism. The output end of the air suction mechanism is connected with a rotating ring. The rotating ring is sleeved and rotatably connected to the outer wall of the roller. An annular cavity is formed on the inner wall of the rotating ring, and the annular cavity is communicated with the plurality of air inlets. A conveying assembly is connected to the inner wall of the rolling cavity, and the conveying assembly is communicated with the plurality of air inlets.

[0008] Further, the conveying assembly includes a sealing cylinder and an auger disk. Both ends of the sealing cylinder and the auger disk are fixedly connected to both ends of the inner wall of the rolling cavity. A cavity is formed between the sealing cylinder and the roller. The auger disk is located in this cavity, and this cavity is communicated with the plurality of air inlets.

[0009] Further, a deformable cylinder is fixedly connected to the inner wall of the sealing cylinder far away from the auger disk.

[0010] Further, both ends of the deformable cylinder are respectively aligned with the feed hopper and the sealing cover.

[0011] Further, a retaining net is fixedly connected to the inner wall of the end of the deformable cylinder close to the sealing cover.

[0012] Further, the air suction mechanism includes a base, an air outlet pipe and an air pump. The bottom surface of the base is fixedly connected to the upper surface of the bracket. The upper surface of the base is fixedly connected to the outer wall of the air pump. The output end of the air pump is fixedly connected and communicated with the air outlet pipe. The other end of the air outlet pipe is fixedly connected to the rotating ring and communicated with the inner wall of the annular cavity.

[0013] Further, the inner wall of the sealing cover is threadedly connected to the outer wall of the roller.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] For this cement grinding device, by arranging a conveying assembly inside the roller, and arranging an air suction mechanism on the bracket, and then controlling the expansion and contraction of the conveying assembly through the air suction mechanism. After the user grinds the cement raw materials through the roller, the roller can be rotated by the rotating mechanism, and air can be sucked through the air suction mechanism, so that spiral transportation is formed inside the rolling cavity, and then the crushed cement raw materials inside the rolling cavity can be discharged from the end of the raw material feed hopper, which is convenient, fast and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall appearance of the utility model;

[0017] Figure 2 It is a detailed structural schematic diagram of the inside of the roller in the present utility model;

[0018] Figure 3 It is a detailed connection schematic diagram of components such as the roller, rotating ring, and sealing cover in the present utility model;

[0019] Figure 4 For the present utility model Figure 3 An exploded schematic diagram of each component;

[0020] Figure 5 It is a detailed connection schematic diagram of the conveying assembly in the present utility model;

[0021] Figure 6 For the present utility model Figure 5 An exploded schematic diagram of each component.

[0022] In the figure: 1, support; 2, rotating mechanism; 3, roller; 4, feed hopper; 5, sealing cover; 6, rotating ring; 7, support ring; 8, base; 9, air outlet pipe; 10, air pump; 11, retaining net; 12, sealing cylinder; 13, auger disk; 14, deformable cylinder; 301, rolling cavity; 302, air inlet; 601, annular cavity. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0024] Please refer to Figures 1-6 , a cement grinding device, including a support 1, a support ring 7 and a rotating mechanism 2 installed on the upper surface of the support 1, a roller 3 installed between the support ring 7 and the rotating mechanism 2, and a feed hopper 4 installed at one end of the roller 3. A rolling cavity 301 is penetrated and opened at one end of the roller 3 far from the feed hopper 4. A plurality of air inlets 302 are penetrated and opened at one end of the rolling cavity 301 close to the feed hopper 4. A sealing cover 5 is connected to the end of the rolling cavity 301 far from the feed hopper 4. An air extraction mechanism is connected to the upper surface of the support 1, and the output end of the air extraction mechanism is connected to a rotating ring 6. The rotating ring 6 is sleeved and rotatably connected to the outer wall of the roller 3. An annular cavity 601 is opened on the inner wall of the rotating ring 6. The annular cavity 601 is communicated with a plurality of air inlets 302. A conveying assembly is connected to the inner wall of the rolling cavity 301. The conveying assembly is communicated with a plurality of air inlets 302.

[0025] A cement grinding device in the present utility model is similar in structure to the existing cement grinding device, such as a cement ball mill disclosed in the patent with the publication number of CN220443989U. As Figures 1 to 6As shown, when the cement grinding device in the present utility model grinds cement raw materials through the roller 3, first, the cement raw materials are put into the rolling cavity 301 through the feed hopper 4. Subsequently, they are slapped, broken, and mixed by a number of steel balls (or other grinding media, specifically not limited) in the rolling cavity 301. When they reach the usable degree, the sealing cover 5 is manually opened. Then, the roller 3 is started again through the rotating mechanism 2, and at the same time, the air extraction and suction mechanism is started. After the air extraction and suction mechanism is started, it will adsorb the conveying component towards the inner wall of the rolling cavity 301 through the air inlet 302 and the annular cavity 601, thereby exposing the conveying component. Then, the roller 3 rotates normally. At this time, due to the action of the conveying component, the cement powder in the rolling cavity 301 will be pushed towards the direction of the sealing cover 5 and fall from here. After that, it only needs to be collected here. By the above method, the discharging can be faster and the efficiency can be higher.

[0026] It should be particularly noted here that the bracket 1, the support ring 7, the rotating mechanism 2, the roller 3, and the feed hopper 4 are all prior arts in the existing cement ball mill, so no detailed description will be given.

[0027] Please mainly refer to Figure 5 and Figure 6 , the conveying component includes a sealing cylinder 12 and an auger disk 13. Both ends of the sealing cylinder 12 and the auger disk 13 are fixedly connected to both ends of the inner wall of the rolling cavity 301. A cavity is formed between the sealing cylinder 12 and the roller 3. The auger disk 13 is located in this cavity, and this cavity is communicated with a number of air inlets 302.

[0028] More specifically, under normal circumstances, the sealing cylinder 12 is located inside the auger disk 13. When the air extraction and suction mechanism is started and air is extracted through the air inlet 302 and the annular cavity 601, at this time, the gas inside the gap between the sealing cylinder 12 and the inner wall of the rolling cavity 301 is pumped away. Due to the action of atmospheric pressure, the sealing cylinder 12 will closely adhere to the outer wall of the auger disk 13 at this time, forming an auger conveyor.

[0029] Then the roller 3 rotates normally. The crushed cement raw materials located inside the sealing cylinder 12 will move towards the direction of the sealing cover 5 under the action of the auger disk 13.

[0030] Please mainly refer to Figure 5 and Figure 6 , a deformable cylinder 14 is fixedly connected to the inner wall of the sealing cylinder 12 away from the auger disk 13. Both ends of the deformable cylinder 14 are respectively aligned with the feed hopper 4 and the sealing cover 5.

[0031] By setting the deformable cylinder 14, it can prevent the steel balls located in the rolling cavity 301 from directly hitting the sealing cylinder 12 and the auger disk 13, and accelerate the damage of the auger disk 13.

[0032] Please mainly refer to Figure 2, one end inner wall of the deformable cylinder 14 close to the sealing cover 5 is fixedly connected with a retaining net 11. By providing the retaining net 11, it is possible to prevent steel balls from falling from the sealing cover 5 during material feeding.

[0033] Please mainly refer to Figure 2 and Figure 3 , the air extraction and inhalation mechanism includes a base 8, an air outlet pipe 9 and an air pump 10. The bottom surface of the base 8 is fixedly connected to the upper surface of the bracket 1. The upper surface of the base 8 is fixedly connected to the outer wall of the air pump 10. The output end of the air pump 10 is fixedly connected and communicated with the air outlet pipe 9. The other end of the air outlet pipe 9 is fixedly connected to the rotating ring 6 and communicated with the inner wall of the annular cavity 601.

[0034] More specifically, during normal grinding, the air pump 10 transports gas into the annular cavity 601 and the air inlet 302 through the air outlet pipe 9, so that the sealing cylinder 12 and the deformable cylinder 14 are in an expanded state. When it is necessary to transport the crushed cement raw materials, the air pump 10 starts to extract air, and then the sealing cylinder 12 and the deformable cylinder 14 can be contracted on the surface of the auger disk 13, thus forming an auger conveyor.

[0035] Please mainly refer to Figure 4 , the inner wall of the sealing cover 5 is threadedly connected to the outer wall of the roller 3. By means of threaded connection, firstly, the connection between the sealing cover 5 and the roller 3 can be ensured; secondly, when it is necessary to open the sealing cover 5, the sealing cover 5 can be disassembled more conveniently. Of course, other fixing methods can also be adopted, and specific details are not limited.

[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cement grinding device, comprising a support (1), a support ring (7) and a rotating mechanism (2) mounted on the upper surface of the support (1), a roller (3) mounted between the support ring (7) and the rotating mechanism (2), and a feed hopper (4) mounted at one end of the roller (3), characterized in that: A rolling cavity (301) is formed through one end of the roller (3) away from the feed hopper (4), and a plurality of air inlets (302) are formed through one end of the rolling cavity (301) close to the feed hopper (4). A sealing cover (5) is connected to the end of the rolling cavity (301) away from the feed hopper (4). An air suction mechanism is connected to the upper surface of the bracket (1), and a rotating ring (6) is connected to the output end of the air suction mechanism. The rotating ring (6) is sleeved and rotatably connected to the outer wall of the roller (3). An annular cavity (601) is formed on the inner wall of the rotating ring (6), and the annular cavity (601) is connected to the plurality of air inlets (302). A conveying assembly is connected to the inner wall of the rolling cavity (301), and the conveying assembly is connected to the plurality of air inlets (302).

2. A cement grinding device according to claim 1, characterized in that: The conveying assembly comprises a sealing cylinder (12) and an auger disc (13), both ends of the sealing cylinder (12) and the auger disc (13) are fixedly connected to both ends of the inner wall of the rolling cavity (301), a cavity is formed between the sealing cylinder (12) and the roller (3), the auger disc (13) is located in the cavity, and the cavity is connected to a plurality of air inlets (302).

3. A cement grinding device according to claim 2, characterized in that: The inner wall of the sealing cylinder (12) away from the auger disc (13) is fixedly connected with a deformable cylinder (14).

4. A cement grinding device according to claim 3, characterized in that: The two ends of the deformable cylinder (14) are matched and aligned with the feed hopper (4) and the sealing cover (5) respectively.

5. A cement grinding device according to claim 3 or 4, characterized in that: A blocking net (11) is fixedly connected to the inner wall of one end of the deformable cylinder (14) close to the sealing cover (5).

6. A cement grinding device according to claim 1, 2, 3 or 4, characterized in that: The air suction mechanism comprises a base (8), an air outlet pipe (9) and an air pump (10); the bottom surface of the base (8) is fixedly connected to the upper surface of the bracket (1); the upper surface of the base (8) is fixedly connected to the outer wall of the air pump (10); the output end of the air pump (10) is fixedly connected to and communicated with the air outlet pipe (9); the other end of the air outlet pipe (9) is fixedly connected to the rotating ring (6) and communicated with the inner wall of the annular cavity (601).

7. A cement grinding device according to claim 5, characterized in that: The air suction mechanism comprises a base (8), an air outlet pipe (9) and an air pump (10); the bottom surface of the base (8) is fixedly connected to the upper surface of the bracket (1); the upper surface of the base (8) is fixedly connected to the outer wall of the air pump (10); the output end of the air pump (10) is fixedly connected to and communicated with the air outlet pipe (9); the other end of the air outlet pipe (9) is fixedly connected to the rotating ring (6) and communicated with the inner wall of the annular cavity (601).

8. A cement grinding device according to claim 1, 2, 3, 4 or 7, characterized in that: The inner wall of the sealing cover (5) is threadedly connected to the outer wall of the roller (3).

9. A cement grinding device according to claim 5, characterized in that: The inner wall of the sealing cover (5) is threadedly connected to the outer wall of the roller (3).

10. A cement grinding device according to claim 6, characterized in that: The inner wall of the sealing cover (5) is threadedly connected to the outer wall of the roller (3).

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