Grinding device for cement production

Abstract

The utility model discloses a grinding device for cement production, and relates to the technical field of general crushing. A grinding device for cement production comprises a grinding tank, a filtering device is arranged on the grinding tank and comprises a filtering plate, a scraping plate and a motor, the motor is fixedly connected to the upper surface of the grinding tank, and four fixing rod grooves are formed in the lower end of the grinding tank; when materials in the filtering device fall on the surface of a filtering plate, the filtering plate moves downwards and drives a first reset spring to contract at the same time, then the filtering plate is reset through the first reset spring, and the generated acting force enables the filtering plate to move up and down to screen the materials; in this way, the filter plate filters ground materials, the situation that impurities generated in the grinding process and particles which are not completely ground are mixed into cement products after being treated is effectively avoided, and therefore the maintenance frequency and cost of equipment are reduced.

Description

A grinding device for cement production Technical Field

[0001] This utility model relates to the field of general crushing technology, and in particular to a grinding device for cement production. Background Technology

[0002] Cement is a powdery hydraulic inorganic binder that forms a paste when mixed with water. It hardens in air or, more importantly, in water. A Chinese utility model patent, authorized publication number "CN221934128U," discloses a cement production grinding device. The device includes a grinding unit with a motor bolted to its top. A rotating shaft is inserted into the motor's output shaft, with a crushing roller welded to its outer wall. A grinding column is inserted into the bottom of the rotating shaft, and grinding media is welded to its outer wall. A partition plate is welded into the inner cavity of the grinding unit, with a grinding hole at the top and a grinding funnel welded to its bottom. Grinding media is welded to the inner wall of the grinding funnel, and a feeding plate is welded to the bottom of the grinding funnel. This utility model's cement production grinding device, by gradually reducing the diameter of the grinding funnel, decreases the gap between the grinding funnel and the grinding media on the grinding column, thus achieving layer-by-layer grinding of the cement. This solves the problem that cement raw materials from the previous layer cannot continue grinding in the next layer during the grinding process.

[0003] The above technical solution involves pouring raw materials into the grinding device through the feed inlet, then using a rotating crushing roller to initially crush the raw materials. The crushed material then enters the grinding hole, where the grinding media on the outer wall of the grinding column rotates and the grinding media on the inner wall of the funnel continuously grinds the material until it passes through the bottom of the grinding hole and is then stored in a storage box. However, the above technical solution still has certain drawbacks. For example, while the equipment uses the grinding column to rotate the grinding media on the outer wall and the grinding media on the inner wall of the funnel to continuously grind the material before storing it in the storage box, impurities and unground particles may be generated during the grinding process. If these impurities are not treated, they will mix into the cement product, affecting the purity and quality of the cement. At the same time, the presence of impurities and particles may increase the maintenance frequency and cost of the equipment. Summary of the Invention

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a grinding device for cement production. This device can solve the problem that the grinding media on the outer wall of the grinding column rotates and the grinding media on the inner wall of the funnel continuously grind the cement, and finally enter the storage box for storage. However, impurities and unground particles may be generated during the grinding process. If these impurities are not treated, they will be mixed into the cement product, thereby affecting the purity and quality of the cement. At the same time, the presence of impurities and particles may increase the maintenance frequency and cost of the equipment.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a grinding device for cement production, comprising a grinding jar, wherein a filter device is provided on the grinding jar;

[0006] The filtration device includes a filter plate, a scraper, and a motor. The motor is fixedly connected to the upper surface of the grinding tank. Four fixing rod slots are opened inside the lower end of the grinding tank. Fixing rods are fixedly connected inside the four fixing rod slots. Four protrusions on the outer wall of the filter plate are slidably connected to the outer walls of the fixing rods. A second return spring is sleeved on the outer walls of the four fixing rods.

[0007] The grinding jar has a grinding roller rotatably connected to the upper inner wall. A sliding groove is provided on the lower surface of the cylindrical part of the grinding roller. A sliding column is slidably connected inside the sliding groove. A scraper is fixedly connected to the outer wall of the end of the sliding column away from the grinding roller. A first reset spring is provided inside the sliding groove.

[0008] Preferably, the two ends of the four second return springs are fixedly connected to the lower surface of the corresponding filter plate and the inner wall of the fixing rod groove, respectively;

[0009] The output shaft of the electric motor extends into the interior of the grinding jar and is fixedly connected to one end of the grinding roller.

[0010] Preferably, the outer wall of the scraper is in contact with the outer wall of the filter plate;

[0011] The two ends of the first reset spring are fixedly connected to the upper outer wall of the corresponding sliding column and the inner wall of the sliding column groove, respectively.

[0012] Preferably, a support base is fixedly connected to the lower outer wall of the grinding jar;

[0013] All four support columns on the lower surface of the support base are in contact with the ground.

[0014] Preferably, one end of the grinding jar near the support base extends fixedly to the outside of the support base, and a grinding funnel is fixedly connected to the upper inner wall of the grinding jar;

[0015] The inner wall of the grinding funnel is conical.

[0016] Preferably, the lower outer wall of the grinding roller is conical, the inner wall of the grinding funnel is fitted with the lower outer wall of the grinding roller, and a crushing roller is fixedly connected to the upper outer wall of the grinding roller.

[0017] The grinding roller has a spiral hammer on its outer wall, a feed pipe is fixedly connected to the upper surface of the grinding tank, the inside of the feed pipe is connected to the inside of the grinding tank, and a discharge port is opened on the lower outer wall of the grinding tank.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. This grinding device for cement production utilizes the force generated when material falls onto the surface of the filter plate in the filtration device. This causes the filter plate to move downwards, simultaneously causing the first return spring to contract. The first return spring then resets the filter plate. The resulting force causes the filter plate to move up and down to screen the material. This process effectively filters the ground material, thus preventing impurities and untreated particles generated during the grinding process from mixing into the cement product. This reduces the frequency and cost of equipment maintenance. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0021] Figure 1 is a three-dimensional structural diagram of this utility model;

[0022] Figure 2 is a schematic diagram of the internal structure of the grinding tank of this utility model;

[0023] Figure 3 is a schematic diagram of the external structure of the filter plate of this utility model;

[0024] Figure 4 is a schematic diagram of the external structure of the grinding roller of this utility model.

[0025] Reference numerals in the attached drawings: 1. Grinding jar; 2. Support base; 3. Discharge port; 4. Feed pipe; 5. Motor; 6. Fixed rod groove; 7. Filter plate; 8. Sliding column; 9. Scraper; 10. Grinding funnel; 11. Crushing roller; 12. Grinding roller; 13. First return spring; 14. Second return spring; 15. Sliding column groove; 16. Fixed rod. Detailed Implementation

[0026] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0027] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0029] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0030] Please refer to Figures 1-4. This utility model provides a technical solution: a grinding device for cement production, including a grinding jar 1;

[0031] The grinding jar 1 is equipped with a filter device;

[0032] The filtration device includes a filter plate 7, a scraper 9, and a motor 5. The motor 5 is fixedly connected to the upper surface of the grinding jar 1. Four fixing rod grooves 6 are formed inside the lower end of the grinding jar 1. Fixing rods 16 are fixedly connected to the interior of each of the four fixing rod grooves 6. Four protrusions on the outer wall of the filter plate 7 are slidably connected to the outer walls of the fixing rods 16. Second return springs 14 are sleeved on the outer walls of each of the four fixing rods 16. The two ends of the four second return springs 14 are fixedly connected to the lower surface of the corresponding filter plate 7 and the inner wall of the fixing rod groove 6, respectively. A grinding wheel is rotatably connected to the inner wall of the upper end of the grinding jar 1. The output shaft of the grinding roller 12 and the motor 5 extend into the grinding tank 1 and are fixedly connected to one end of the grinding roller 12. A sliding groove 15 is provided on the lower surface of the lower cylindrical part of the grinding roller 12. A sliding column 8 is slidably connected inside the sliding groove 15. A scraper 9 is fixedly connected to the outer wall of the end of the sliding column 8 away from the grinding roller 12. The outer wall of the scraper 9 contacts the outer wall of the filter plate 7. A first return spring 13 is provided inside the sliding groove 15. The two ends of the first return spring 13 are fixedly connected to the upper outer wall of the corresponding sliding column 8 and the inner wall of the sliding groove 15, respectively.

[0033] The grinding jar 1 has a support base 2 fixedly connected to its lower outer wall. The four support columns on the lower surface of the support base 2 are in contact with the ground. The end of the grinding jar 1 near the support base 2 is fixedly extended to the outside of the support base 2. The grinding funnel 10 is fixedly connected to the upper inner wall of the grinding jar 1. The inner wall of the grinding funnel 10 is conical. The lower outer wall of the grinding roller 12 is conical. The inner wall of the grinding funnel 10 matches the lower outer wall of the grinding roller 12. The crushing roller 11 is fixedly connected to the upper outer wall of the grinding roller 12. The crushing roller 11 has a spiral hammer on its outer wall. The upper surface of the grinding jar 1 has a feed pipe 4 fixedly connected to it. The inside of the feed pipe 4 is connected to the inside of the grinding jar 1. The lower outer wall of the grinding jar 1 has a discharge port 3.

[0034] Furthermore, when using this device, it is started by connecting an external power source. First, the external device is connected to the feed pipe 4. Then, the external device feeds material into the grinding jar 1 through the feed pipe 4. Then, the output end of the motor 5 rotates, driving the grinding roller 12 to rotate while simultaneously driving the crushing roller 11 to rotate. Next, the crushing roller 11 and the upper interior of the grinding jar 1 form a crushing chamber to crush the material. Then, the crushed material enters the inner wall of the crushing roller 11 and is simultaneously ground by the outer wall of the grinding roller 12 and the inner wall of the grinding funnel 10. At the same time, the ground material falls into the... The force generated on the surface of the filter plate 7 causes the filter plate 7 to move downwards, while simultaneously causing the first return spring 13 to contract. At the same time, the force generated by the second return spring 14 on the sliding column 8 causes the sliding column 8 to move downwards, while simultaneously causing the scraper 9 to move downwards. This ensures that the scraper 9 is always in contact with the surface of the filter plate 7. In this way, the filter plate 7 filters the ground material while the grinding roller 12 rotates and drives the scraper 9 to scrape the surface of the filter plate 7, effectively preventing the filter plate 7 from becoming clogged. Then, the ground material after filtration is discharged through the discharge port 3 at the lower end of the grinding tank 1.

[0035] The force generated when material falls onto the surface of the filter plate 7 in the filtration device causes the filter plate 7 to move downwards, simultaneously causing the first return spring 13 to contract. Then, the first return spring 13 resets the filter plate 7. The force generated in this way causes the filter plate 7 to move up and down to screen the material. This achieves the filtering of the ground material by the filter plate 7, effectively preventing impurities and untreated particles generated during the grinding process from mixing into the cement product, thereby reducing the maintenance frequency and cost of the equipment. The force generated by the second return spring 14 on the sliding column 8 causes the sliding column 8 to move downwards, simultaneously causing the scraper 9 to move downwards. This ensures that the scraper 9 is always in contact with the surface of the filter plate 7, effectively preventing the filter plate 7 from clogging, while improving the practicality and flexibility of the equipment, and thus improving the production efficiency of the equipment.

[0036] Working principle: First, the external equipment is connected to the feed pipe 4. Then, the external equipment feeds material into the grinding tank 1 through the feed pipe 4. Then, the output end of the motor 5 rotates, driving the grinding roller 12 to rotate and the crushing roller 11 to rotate. Then, the crushing roller 11 and the upper part of the grinding tank 1 form a crushing chamber to crush the material. Then, the crushed material enters the inner wall of the crushing roller 11 and is ground by the outer wall of the grinding roller 12 and the inner wall of the grinding funnel 10. At the same time, when the ground material falls on the surface of the filter plate 7, the force generated causes the filter plate 7 to move downward and drives the first return spring 13 to contract. At the same time, the force generated by the second return spring 14 on the sliding column 8 causes the sliding column 8 to move downward and drives the scraper 9 to move downward. In this way, the scraper 9 is always in contact with the surface of the filter plate 7. This achieves the filtering of the ground material by the filter plate 7, while the rotation of the grinding roller 12 drives the scraper 9 to scrape the surface of the filter plate 7, effectively preventing the filter plate 7 from clogging. Then, the ground material after filtration is discharged through the discharge port 3 at the lower end of the grinding tank 1.

[0037] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A grinding apparatus for cement production, comprising a grinding jar (1), characterized in that: The grinding jar (1) is equipped with a filter device. The filter device includes a filter plate (7), a scraper (9), and a motor (5). The motor (5) is fixedly connected to the upper surface of the grinding jar (1). The lower end of the grinding jar (1) has four fixed rod grooves (6). Each of the four fixed rod grooves (6) is fixedly connected to a fixed rod (16). The four protrusions on the outer wall of the filter plate (7) are slidably connected to the outer wall of the fixed rod (16). Each of the four fixed rods (16) is fitted with a second return spring (14). The upper inner wall of the grinding jar (1) is rotatably connected to a grinding roller (12). The lower cylindrical surface of the lower end of the grinding roller (12) is provided with a sliding column groove (15). The sliding column groove (15) is slidably connected to a sliding column (8). The outer wall of the sliding column (8) away from the grinding roller (12) is fixedly connected to a scraper (9). The sliding column groove (15) is provided with a first return spring (13).

2. The grinding device for cement production according to claim 1, characterized in that: The two ends of the four second return springs (14) are respectively fixedly connected to the lower surface of the corresponding filter plate (7) and the inner wall of the fixed rod groove (6); wherein, the output shaft of the motor (5) extends to the inside of the grinding jar (1) and is fixedly connected to one end of the grinding roller (12).

3. The grinding device for cement production according to claim 1, characterized in that: The outer wall of the scraper (9) is in contact with the outer wall of the filter plate (7); wherein, the two ends of the first reset spring (13) are fixedly connected to the upper outer wall of the corresponding sliding column (8) and the inner wall of the sliding column groove (15), respectively.

4. A grinding device for cement production according to claim 1, characterized in that: The lower outer wall of the grinding jar (1) is fixedly connected to a support base (2); wherein, the four support columns on the lower surface of the support base (2) are all in contact with the ground.

5. A grinding device for cement production according to claim 1, characterized in that: The grinding jar (1) extends fixedly to the outside of the support base (2) at one end, and a grinding funnel (10) is fixedly connected to the inner wall of the upper end of the grinding jar (1); wherein the inner wall of the grinding funnel (10) is conical.

6. A grinding device for cement production according to claim 1, characterized in that: The lower outer wall of the grinding roller (12) is conical, the inner wall of the grinding funnel (10) is fitted with the lower outer wall of the grinding roller (12), and the upper outer wall of the grinding roller (12) is fixedly connected to the crushing roller (11); wherein, the outer wall of the crushing roller (11) is provided with a spiral hammer, the upper surface of the grinding tank (1) is fixedly connected to the feed pipe (4), the inside of the feed pipe (4) is connected to the inside of the grinding tank (1), and the lower outer wall of the grinding tank (1) is provided with a discharge port (3).

Images