Mechanism sand vertical roller mill device

Abstract

The utility model relates to the technical field of grinding equipment, and specifically discloses a machine-made sand vertical roller mill device, which comprises a support seat for support and a crushing assembly arranged on the support seat, and the crushing assembly is used for grinding and treating materials; the crushing assembly comprises a crushing cavity, and a grinding disc is arranged at the middle part of the inner side of the crushing cavity, the heating component at the bottom of the grinding disc can heat the disc body, dry the material with high water content, solve the problem of low drying efficiency of the hot air from the air supply port, enhance the crushing efficiency, make the airflow formed by the air outlet gap between the outer side of the grinding disc and the inner wall of the crushing cavity blow the crushed material, promote air circulation, be beneficial to heat dissipation and improve the material conveying efficiency, and the brush of the scraping assembly can scrape off the material residues adhered to the outer side of the roller during the rotation of the roller, keep the surface of the roller clean, and maintain the normal working state of the roller.

Description

Technical Field

[0001] This utility model relates to the field of grinding equipment technology, specifically a vertical roller mill device for machine-made sand. Background Technology

[0002] Roller mills are a commonly used grinding equipment, widely used in industries such as cement, mining, and power.

[0003] Grinding rollers and grinding discs are key components of roller mills that directly participate in material grinding. During long-term grinding operations, they generate intense friction and compression with the material.

[0004] Before entering the roller mill, raw materials need to be dried. This is mainly because the grinding efficiency of the roller mill is affected by various factors, such as the properties of the material (humidity, hardness, particle size, etc.), the loading force on the grinding rollers, and the ventilation volume. When the material has high humidity, it will affect the flowability of the material on the grinding disc and reduce the grinding efficiency; insufficient ventilation will prevent fine powder from being discharged from the mill in time, affecting the grinding process.

[0005] In traditional roller mills, material residues adhering to the outer side of the rollers are difficult to clean. Furthermore, the grinding disc is one of the important supporting components that comes into contact with the material first and bears the crushing load. If the crushed material has a high moisture content and there is not enough heat to dry it, relying solely on hot air from the air inlet for drying will inevitably result in low material crushing efficiency. Based on this, this application provides a vertical roller mill device for manufactured sand. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a vertical roller mill device for manufactured sand, which solves the problem that material residues adhering to the outer side of the rollers in traditional roller mills are difficult to clean; as an important component that contacts and carries the crushing of materials, if the crushed material has a high moisture content, relying solely on hot air from the air outlet for drying will lead to low material crushing efficiency.

[0007] The present invention relates to a vertical roller mill for manufactured sand, comprising a support base for support and a crushing component disposed on the support base, the crushing component being used for grinding the material. The crushing assembly includes a crushing cavity, a grinding disc is provided in the middle of the inner side of the crushing cavity, and two symmetrically arranged grinding rollers are provided on the top of the grinding disc. The grinding rollers are set at a preset inclination to crush the material falling onto the grinding disc. The outer side of the crushing cavity is provided with two symmetrically arranged through holes, and a drive motor is installed thereon to drive the grinding roller to rotate along a preset path. The outer side of the grinding roller is provided with a scraping component for scraping off the material adhering to the outer side of the grinding roller. The grinding disc includes a fixed disc, the top of which is provided with a wrapping space, and the inner side of the wrapping space is provided with a slot. One or more disc bodies are installed in the slot, and the surface of the disc body is in contact with the outer side of the grinding roller. The space enclosing the fixed plate is equipped with a heating element located at the bottom of the plate body for heating the plate body.

[0008] As a further improvement of this utility model, two symmetrically arranged support arms are provided on the outer side of the drive motor to support the drive motor.

[0009] As a further improvement of this utility model, a powder suction port is provided at the top of the crushing cavity, and a filter assembly is provided inside the powder suction port for filtering the crushed powder material.

[0010] As a further improvement of this utility model, a feed inlet is provided on the outside of the crushing cavity. The feed inlet is inclined at a preset angle and located between the two grinding rollers.

[0011] As a further improvement of this utility model, a fixed distance is maintained between the outer side of the grinding disc and the inner wall of the crushing cavity to form an air outlet gap for feeding the crushed material.

[0012] As a further improvement of this utility model, a drive base is provided at the bottom of the crushing cavity, and the bottom of the drive base is fixed to the support base.

[0013] As a further improvement of this utility model, the drive base includes a second drive motor, and a connecting cover is provided on the top of the second drive motor. The outer edge of the connecting cover is adapted to the bottom of the crushing cavity through a flange for fixing the crushing cavity.

[0014] As a further improvement of this utility model, one or more air inlets are provided on the outer side of the connecting cover for inputting dry hot air to blow the powder material upward. A discharge port is provided on the outer side of the connecting cover at one of the air inlets for discharging the material that falls into the air inlet.

[0015] As a further improvement of this utility model, a mounting base is provided at the bottom of the grinding disc, and the mounting base is fixed to the output shaft of the second drive motor.

[0016] As a further improvement of this utility model, the scraping assembly includes a support frame, which is disposed on the outside of the roller, and a brush is disposed at the bottom of the support frame, which contacts the outside of the roller.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention uses a heating element at the bottom of the grinding disc to heat the disc body and dry materials with high moisture content, solving the problem of low efficiency when drying with hot air from the air outlet alone. It enhances the crushing efficiency, allowing the airflow formed by the air outlet gap between the outer side of the grinding disc and the inner wall of the crushing cavity to blow the crushed material, promoting air circulation, facilitating heat dissipation and improving material conveying efficiency. In addition, the brush of the scraping component can scrape off the material residue adhering to the outside of the roller when it rotates, keeping the roller surface clean and maintaining the normal working condition of the roller. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a three-dimensional structural diagram of the combination of the support base and the crushing component of this utility model; Figure 2 This is a front view structural diagram of the combination of the support base and the crushing component of this utility model; Figure 3 This is a side view of the combined support base and crushing component of this utility model. Figure 4 This utility model Figure 2 Schematic diagram of the cross-sectional structure of the middle AA section; Figure 5 This is a side view of the combined support base and crushing component of this utility model. Figure 6 This utility model Figure 5 Schematic diagram of the cross-sectional structure of the middle BB section; Figure 7 This utility model Figure 6 Enlarged structural diagram at point A in the middle; Figure 8 This is a three-dimensional structural diagram of the combination of the grinding disc and the roller of this utility model; Figure 9 This is a schematic diagram of the exploded structure of the grinding disc and roller combination of this utility model.

[0019] In the diagram: 1. Support base; 2. Crushing assembly; 3. Drive base; 4. Scraping assembly; 21. Support arm; 22. Crushing cavity; 23. Powder suction port; 24. Drive motor 1; 25. Feed inlet; 26. Filter assembly; 27. Grinding disc; 28. Air outlet gap; 29. ​​Grinding roller; 31. Drive motor 2; 32. Air inlet; 33. Discharge outlet; 41. Support frame; 42. Brush; 271. Disc body; 272. Fixed disc; 273. Slot; 274. Mounting base. Detailed Implementation

[0020] The following illustrations will reveal several embodiments of the present invention. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these physical details are not essential. Furthermore, for the sake of simplicity, some conventional structures and components will be shown in a simple schematic manner in the illustrations.

[0021] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0022] Reference Figures 1 to 9 As shown, this utility model provides a technical solution: a vertical roller mill device for manufactured sand, including a support base 1 for support and a crushing component 2 disposed on the support base 1. The crushing component 2 is used to grind materials. The crushing component 2 includes a crushing cavity 22, a grinding disc 27 is disposed in the middle of the inner side of the crushing cavity 22, and two symmetrically arranged grinding rollers 29 are disposed on the top of the grinding disc 27. The grinding rollers 29 are pre-set inclined to crush the materials falling onto the grinding disc 27. Two symmetrically arranged through holes are disposed on the outer side of the crushing cavity 22, and a drive is installed thereon. A motor 24 is used to drive the grinding roller 29 to rotate along a preset path; a scraping component 4 is provided on the outer side of the grinding roller 29 to scrape off the material adhering to the outer side of the grinding roller 29; the grinding disc 27 includes a fixed disc 272, the top of the fixed disc 272 is provided with a wrapping space, the inner side of the wrapping space is provided with a slot 273, one or more disc bodies 271 are installed at the slot 273, and the surface of the disc body 271 is in contact with the outer side of the grinding roller 29; a heating component is provided at the bottom of the disc body 271 in the wrapping space of the fixed disc 272 to heat the disc body 271.

[0023] In this embodiment, the device is stably installed on the support base 1. The symmetrically inclined grinding rollers 29 work in conjunction with the grinding disc 27 to crush the material. The scraping component 4 enables the grinding rollers 29 to self-clean, keeping the surface of the grinding rollers 29 clean and maintaining the normal working state of the grinding rollers 29. The heating component at the bottom of the grinding disc 27 can heat the disc body 271 to dry the material with high moisture content, solving the problem of low efficiency of drying by relying solely on hot air from the air outlet. This enhances the crushing efficiency, and the airflow formed by the air outlet gap 28 between the outer side of the grinding disc 27 and the inner wall of the crushing cavity 22 can blow the crushed material, promoting air circulation, facilitating heat dissipation, and improving material conveying efficiency.

[0024] Reference Figure 1 and Figure 2 As shown, in some embodiments, two symmetrically arranged support arms 21 are provided on the outer side of the drive motor 24 to support the drive motor 24.

[0025] In this embodiment, by symmetrically setting support arms 21 on the outside of the drive motor 24, a bidirectional auxiliary support limit is formed for the drive motor 24, which effectively counteracts the vibration stress generated when the equipment is working, avoids the problem of assembly position displacement and loose connection structure caused by long-term vibration of the motor, and ensures stable output accuracy of the drive motor 24.

[0026] Reference Figure 3 As shown, in some embodiments, a powder suction port 23 is provided at the top of the crushing cavity 22, and a filter assembly 26 is provided inside the powder suction port 23 for filtering the crushed powder material.

[0027] In this embodiment, the powder suction port 23 at the top of the crushing cavity 22 can be connected to an external negative pressure device to suck up the finished powder. In conjunction with the built-in filter component 26, the rising powder can be screened and intercepted, effectively retaining large particles of impurities that are not completely crushed, and only allowing qualified fine powder to be discharged. While realizing automatic powder suction and discharge, the powder filtration and purification are completed in one integrated manner, which significantly improves the uniformity of finished manufactured sand particles and the quality of finished products, and optimizes the overall processing performance of the equipment.

[0028] Reference Figures 1 to 4 As shown, in some embodiments, a feed inlet 25 is provided on the outside of the crushing cavity 22. The feed inlet 25 is inclined at a preset angle and is located between the two grinding rollers 29.

[0029] In this embodiment, the feed inlet 25, which is inclined on the outside of the crushing cavity 22, is arranged between the two grinding rollers 29. The material falls precisely into the central crushing area of ​​the grinding disc 27 by its own weight along the inclined feed inlet 25, realizing directional and concentrated feeding. This effectively avoids the problem of insufficient grinding caused by material falling off and accumulating, and greatly improves the material grinding utilization rate and processing efficiency. At the same time, the inclined structure can effectively prevent material backflow and blockage, ensuring continuous and stable feeding operation of the equipment.

[0030] Reference Figure 4 As shown, in some embodiments, a fixed distance is maintained between the outer side of the grinding disc 27 and the inner wall of the crushing cavity 22 to form an air outlet gap 28 for feeding the crushed material.

[0031] In this embodiment, the annular air outlet slit 28 formed by the outer side of the grinding disc 27 and the inner wall of the crushing cavity 22 allows the rising airflow at the bottom to be evenly conveyed upwards, driving the ground powder material to flow upwards and discharge, thereby realizing continuous air and material feeding operations, effectively improving the smoothness of material discharge, reducing the accumulation of powder material in the grinding cavity, and improving the overall grinding and discharge efficiency.

[0032] Reference Figure 2 and Figure 4 As shown, in some embodiments, a drive base 3 is provided at the bottom of the crushing cavity 22, and the bottom of the drive base 3 is fixed to the support base 1.

[0033] In this embodiment, by setting a drive base 3 at the bottom of the crushing cavity 22 and fixedly connected to the support base 1, a stable bottom support and positioning can be provided for the crushing cavity 22 and the internal grinding components, and the load of the upper equipment can be evenly transferred to the support base 1, which can effectively improve the integrity and rigidity of the whole structure, buffer the vibration during the operation of the equipment, avoid the cavity structure from shaking and shifting, and ensure the stability of the grinding operation.

[0034] Reference Figures 6 to 8 As shown, in some embodiments, the drive base 3 includes a second drive motor 31, and a connecting cover is provided on the top of the second drive motor 31. The outer edge of the connecting cover is adapted to the bottom of the crushing cavity 22 through a flange for fixing the crushing cavity 22.

[0035] In this embodiment, a connecting cover is mounted above the drive motor 31 built into the drive base 3. The outer edge of the connecting cover is adapted to the flange at the bottom of the crushing cavity 22 to achieve precise positioning and firm installation of the crushing cavity 22. This ensures the coaxiality and structural sealing of the crushing cavity 22 and prevents problems such as loosening of the cavity, air leakage and powder leakage during operation. At the same time, the flange connection structure has strong load-bearing capacity and can stably bear the working load of the crushing cavity 22, further improving the overall structural stability of the equipment.

[0036] Reference Figure 6 , Figure 8 and Figure 9 As shown, in some embodiments, one or more air inlets 32 are provided on the outer side of the connecting cover for inputting dry hot air to blow the powder material upward. A discharge port 33 is provided on the outer side of the connecting cover at one of the air inlets 32 for discharging the material that falls into the air inlet 32.

[0037] In this embodiment, by setting an air inlet 32 ​​on the outside of the connecting cover, dry hot air can be continuously introduced into the crushing cavity 22. On the one hand, this, together with the air outlet 28, forms an upward airflow, which drives the qualified ground powder to float up and be conveyed quickly, improving the discharge efficiency. On the other hand, the hot air can assist in drying the material, and together with the heating component at the bottom of the disc 271, it can further reduce the moisture content of the powder. At the same time, the discharge port 33 located at the air inlet 32 ​​can promptly discharge the accumulated material falling into the air inlet 32, preventing material accumulation from clogging the air inlet 32, and ensuring hot air circulation and continuous operation of the equipment.

[0038] Reference Figure 9 As shown, in some embodiments, a mounting base 274 is provided at the bottom of the disc body 271 of the grinding disc 27, and the mounting base 274 is fixed to the output shaft of the drive motor 31.

[0039] In this embodiment, the mounting base 274 at the bottom of the disc 271 is fixedly engaged with the output shaft of the second drive motor 31, so that the second drive motor 31 can stably drive the disc 271 to rotate synchronously. This, together with the inclined grinding roller 29, forms a relative grinding motion, which effectively improves the uniformity and grinding efficiency of the material. At the same time, the overall transmission structure is compact and stable with low transmission loss, ensuring the continuity and stability of the equipment's grinding operation.

[0040] Reference Figure 6 and Figure 7 As shown, in some embodiments, the scraping assembly 4 includes a support frame 41 disposed on the outside of the roller 29, and a brush 42 disposed at the bottom of the support frame 41, the brush 42 being in contact with the outside of the roller 29.

[0041] In this embodiment, the brush 42 is fixed by the support frame 41 and always keeps the brush 42 in contact with the outside of the grinding roller 29. During the continuous rotation and grinding process of the grinding roller 29, the wet powder and fine particles adhering to the surface of the grinding roller 29 can be scraped off, preventing the accumulation and clumping of materials and the blockage of the grinding gap. This ensures that the surface of the grinding roller 29 is clean, stabilizes the grinding gap size, continuously ensures the grinding accuracy and operation continuity of the equipment, and further improves the processing quality of the finished material.

[0042] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A vertical roller mill for manufactured sand, comprising a support base (1) for support and a crushing assembly (2) disposed on the support base (1), the crushing assembly (2) being used to grind the material; Its features are: The crushing component (2) includes a crushing cavity (22), and a grinding disc (27) is provided in the middle of the inner side of the crushing cavity (22). Two symmetrically arranged grinding rollers (29) are provided on the top of the grinding disc (27). The grinding rollers (29) are set at a preset inclination to crush the material falling onto the grinding disc (27). The outer side of the crushing cavity (22) is provided with two symmetrically arranged through holes and a drive motor (24) is installed thereon to drive the grinding roller (29) to rotate along the preset path. The outer side of the roller (29) is provided with a scraping component (4) for scraping off the material adhering to the outer side of the roller (29); The grinding disc (27) includes a fixed disc (272), the top of the fixed disc (272) is provided with a wrapping space, the inner side of the wrapping space is provided with a slot (273), one or more disc bodies (271) are installed at the slot (273), and the surface of the disc body (271) is in contact with the outer side of the grinding roller (29); The enclosure space of the fixed plate (272) is located at the bottom of the plate body (271) and a heating element is provided for heating the plate body (271).

2. The vertical roller mill device for manufactured sand according to claim 1, characterized in that: Two symmetrically arranged support arms (21) are provided on the outer side of the drive motor (24) to support the drive motor (24).

3. The vertical roller mill device for manufactured sand according to claim 1, characterized in that: The top of the crushing cavity (22) is provided with a powder suction port (23), and the inner side of the powder suction port (23) is provided with a filter assembly (26) for filtering the crushed powder material.

4. The vertical roller mill device for manufactured sand according to claim 1, characterized in that: The outer side of the crushing cavity (22) is provided with a feed inlet (25), which is inclined at a preset angle and located between the two grinding rollers (29).

5. The vertical roller mill device for manufactured sand according to claim 1, characterized in that: A fixed distance is maintained between the outer side of the grinding disc (27) and the inner wall of the crushing cavity (22) to form an air outlet gap (28) for feeding the crushed material.

6. The vertical roller mill device for manufactured sand according to claim 1, characterized in that: The bottom of the crushing cavity (22) is provided with a drive base (3), and the bottom of the drive base (3) is fixed to the support base (1).

7. A vertical roller mill device for manufactured sand according to claim 6, characterized in that: The drive base (3) includes a second drive motor (31). The top of the second drive motor (31) is provided with a connecting cover. The outer edge of the connecting cover is adapted to the bottom of the crushing cavity (22) through a flange for fixing the crushing cavity (22).

8. A vertical roller mill device for manufactured sand according to claim 7, characterized in that: The outer side of the connecting cover is provided with one or more air inlets (32) for inputting dry hot air to blow the powder material upward. The outer side of the connecting cover is provided with a discharge port (33) at one of the air inlets (32), and the discharge port (33) is used to discharge the material that falls into the air inlet (32).

9. A vertical roller mill device for manufactured sand according to claim 1, characterized in that: The grinding disc (27) has a mounting base (274) at the bottom of the disc body (271), and the mounting base (274) is fixed to the output shaft of the second drive motor (31).

10. A vertical roller mill device for manufactured sand according to claim 1, characterized in that: The scraping assembly (4) includes a support frame (41) disposed on the outside of the roller (29), and a brush (42) is disposed at the bottom of the support frame (41), the brush (42) being in contact with the outside of the roller (29).

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