Vertical composite crushing and grinding machine for refractory material production

Abstract

The utility model discloses a vertical composite crushing and grinding machine for refractory material production, and relates to the technical field of crushing and grinding equipment, the vertical composite crushing and grinding machine comprises a crushing device, a grinding mechanism is arranged at the bottom of the crushing device, and a protection assembly is arranged in the grinding mechanism; and the grinding mechanism comprises a barrel connected with the bottom of the crushing device and is used for receiving crushed materials. According to the vertical type composite crushing and grinding machine for refractory material production, external air enters the central shaft pipe through the air inlet pipe and the rotary joint and then is sprayed out from the multiple air nozzles through the horizontal pipe, the sprayed air forms airflow in the cylinder, powder is in a suspension state under the entrainment of the airflow, and then the cyclone separator is operated to generate strong suction force, so that the powder is crushed and ground. According to the air flow auxiliary screening and cyclone separation collecting mode, suspended powder is sucked out, the sucked-out powder is discharged through a discharging port of the cyclone separator and collected, the problem that screen holes of a traditional screen are prone to being blocked is solved, and efficient circulation and collection of the powder are guaranteed.

Description

A vertical composite crushing and grinding mill for refractory material production Technical Field

[0001] This utility model relates to the technical field of crushing and grinding equipment, specifically a vertical composite crushing and grinding machine for refractory material production. Background Technology

[0002] Refractory materials are a class of inorganic non-metallic materials with a refractoriness of not less than 1580℃. Refractoriness refers to the Celsius temperature at which a conical specimen of a refractory material, under no load, resists high temperatures without softening or melting. However, defining refractory materials solely by refractoriness is insufficient to fully describe them; 1580℃ is not absolute. Currently, refractory materials are defined as any material whose physicochemical properties allow it to be used in high-temperature environments. Refractory materials are widely used in metallurgy, chemical industry, petroleum, machinery manufacturing, silicate, and power industries, with the largest usage in the metallurgical industry, accounting for 50% to 60% of total production. Vertical compound crushing and grinding mills are generally used for crushing and grinding refractory materials.

[0003] In the prior art, such as in CN208466129U, a vertical composite crushing and grinding mill for refractory material production is disclosed. It includes a shell, a partition is fixedly connected to the inner wall of the shell, a drive motor is fixedly connected to the side wall of the shell, the output shaft of the drive motor passes through the side wall of the shell and is fixedly connected to a second rotating shaft, the end of the second rotating shaft away from the drive motor passes through the partition and is rotatably connected to the inner wall of the shell, and a plurality of crushing blades are fixedly connected to the second rotating shaft.

[0004] In the aforementioned patent, although the device can crush and grind refractory materials and the ground powder can be screened through a filter plate, the sieve holes of the filter plate or screen in the traditional method are easily blocked, which can easily lead to powder accumulation and thus affect the flow of powder. Therefore, this utility model provides a vertical composite crushing and grinding machine for refractory material production. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this utility model provides a vertical composite crushing and grinding machine for refractory material production, which solves the problem that the sieve holes on traditional filter plates or screens are easily clogged, leading to powder accumulation and affecting powder flow.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a vertical composite crushing and grinding mill for refractory material production, comprising a crushing device, a grinding mechanism at the bottom of the crushing device, and a protective component inside the grinding mechanism; the grinding mechanism includes a cylinder connected to the bottom of the crushing device for receiving crushed materials, a grinding plate installed on the inner wall of the cylinder near the bottom, a central shaft tube penetrating and rotatably mounted at the center of the grinding plate, a horizontal pipe symmetrically fixedly connected to the outer wall of the central shaft tube near the top, and multiple air nozzles fixedly connected to the lower side of the outer wall of the horizontal pipe; a cyclone separator is provided outside the grinding mechanism, and a connecting pipe is provided at the input end of the cyclone separator, the connecting pipe communicating with the inner cavity of the cylinder.

[0007] Preferably, the outer wall of the cylinder is provided with an inspection door, the bottom surface of the grinding plate is equipped with a U-shaped bracket, an air inlet pipe is installed through the U-shaped bracket, the top end of the air inlet pipe is provided with a rotary joint, and the rotary joint is rotatably connected to the bottom end of the central shaft tube.

[0008] Preferably, a first gear is fixedly sleeved on the outer wall of the central shaft tube below the grinding plate, a motor is installed on the inner bottom surface of the U-shaped bracket, and a second gear that meshes with the first gear is installed on the output shaft end of the motor.

[0009] Preferably, a mounting block is fixedly sleeved on the outer wall of the central shaft tube above the grinding plate, and grinding rollers are rotatably mounted on both outer surfaces of the mounting block, with the outer wall of the grinding rollers in contact with the top surface of the grinding plate.

[0010] Preferably, the protective component includes a rectangular block installed at the top of the central shaft tube, a rectangular sleeve slidably fitted onto the outer wall of the rectangular block, a protective cover fixedly connected to the top surface of the rectangular sleeve, and the protective cover covering the outside of the horizontal tube.

[0011] Preferably, a spring is fitted around the rectangular block and the rectangular sleeve, with the bottom end of the spring fixedly connected to the top end of the central shaft tube and the top end of the spring fixedly connected to the inner top surface of the protective cover.

[0012] Beneficial effects

[0013] This utility model provides a vertical composite crushing and grinding mill for refractory material production. Compared with the prior art, it has the following advantages:

[0014] 1. This vertical composite crushing and grinding mill for refractory material production uses external gas to enter the central shaft tube through the air inlet pipe and rotary joint, and then spray it out from multiple air nozzles through the horizontal pipe. The sprayed gas forms an airflow inside the cylinder, and the powder is suspended under the airflow. Then, the cyclone separator generates a strong suction force to suck out the suspended powder. The sucked-out powder is discharged and collected through the discharge port of the cyclone separator. This airflow-assisted screening and cyclone separation collection method replaces the problem of easy clogging of traditional screen holes, ensuring efficient flow and collection of powder.

[0015] 2. In this vertical composite crushing and grinding mill for refractory material production, when the material falls from the crushing device into the cylinder, in order to avoid the horizontal pipe and air nozzle being directly damaged by the falling material, the protective cover bears the impact of the falling material. When the protective cover is displaced due to the impact of the material, the spring is compressed, which effectively buffers the collision of the material and greatly reduces the risk of damage to the horizontal pipe and air nozzle by the falling material. Attached Figure Description

[0016] Figure 1 is a three-dimensional appearance schematic diagram of this utility model;

[0017] Figure 2 is a schematic diagram of the internal structure of the cylinder of this utility model;

[0018] Figure 3 is an exploded view of part of the structure of this utility model;

[0019] Figure 4 is a three-dimensional appearance schematic diagram of the cyclone separator of this utility model.

[0020] In the diagram: 1. Crushing device; 2. Grinding mechanism; 21. Cylinder; 22. U-shaped bracket; 23. Grinding plate; 24. Central shaft tube; 25. Horizontal tube; 26. Air nozzle; 27. Mounting block; 28. Grinding roller; 29. ​​First gear; 210. Motor; 211. Second gear; 212. Inspection door; 3. Protective components; 31. Rectangular block; 32. Rectangular sleeve; 33. Protective cover; 34. Spring; 4. Air inlet pipe; 41. Rotary joint; 5. Cyclone separator; 51. Connecting pipe. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0022] This utility model provides two technical solutions:

[0023] Figures 1-4 illustrate the first embodiment: a vertical composite crushing and grinding mill for refractory material production, including a crushing device 1, a grinding mechanism 2 at the bottom of the crushing device 1, and a protective component 3 inside the grinding mechanism 2; the grinding mechanism 2 includes a cylinder 21 connected to the bottom of the crushing device 1 for receiving crushed materials, a grinding plate 23 installed on the inner wall of the cylinder 21 near the bottom, a central shaft tube 24 penetrating and rotatably mounted at the center of the grinding plate 23, a horizontal pipe 25 symmetrically fixedly connected to the outer wall of the central shaft tube 24 near the top, and multiple air nozzles 26 fixedly connected to the lower side of the outer wall of the horizontal pipe 25; a cyclone separator 5 is provided outside the grinding mechanism 2, and a connecting pipe 51 is provided at the input end of the cyclone separator 5, which communicates with the inner cavity of the cylinder 21. An inspection door 212 is provided on the outer wall of the cylinder 21, a U-shaped bracket 22 is installed on the bottom surface of the grinding plate 23, an air inlet pipe 4 is installed through the U-shaped bracket 22, a rotary joint 41 is provided at the top of the air inlet pipe 4, and the rotary joint 41 is rotatably connected to the bottom end of the central shaft tube 24. A first gear 29 is fixedly sleeved on the outer wall of the central shaft tube 24 below the grinding plate 23. A motor 210 is installed on the inner bottom surface of the U-shaped bracket 22, and a second gear 211 that meshes with the first gear 29 is installed on the output shaft end of the motor 210. A mounting block 27 is fixedly sleeved on the outer wall of the central shaft tube 24 above the grinding plate 23. Grinding rollers 28 are rotatably mounted on both outer surfaces of the mounting block 27, and the outer walls of the grinding rollers 28 are in contact with the top surface of the grinding plate 23.

[0024] Specifically, the refractory material first enters the crushing device 1 and is crushed, falling into the lower cylinder 21. The motor 210 drives the second gear 211 to rotate, which in turn drives the central shaft tube 24 to rotate in conjunction with the first gear 29. When the central shaft tube 24 rotates, the grinding roller 28 rubs against the top surface of the grinding plate 23 and rolls, thereby grinding the material. External gas enters the central shaft tube 24 through the air inlet pipe 4 and the rotary joint 41, and is then ejected through the air nozzle 26 of the horizontal pipe 25, forming an airflow inside the cylinder. The cyclone separator 5 is connected to the inner cavity of the cylinder 21 through the connecting pipe 51 and is used to collect the powder that is lifted by the airflow. The inspection door 212 on the outer wall of the cylinder 21 facilitates internal maintenance.

[0025] Figures 1-4 illustrate the second embodiment, the main difference from the first embodiment being that: the protective component 3 includes a rectangular block 31 mounted on the top of the central shaft tube 24, a rectangular sleeve 32 slidably fitted onto the outer wall of the rectangular block 31, and a protective cover 33 fixedly connected to the top surface of the rectangular sleeve 32, covering the outside of the horizontal tube 25. A spring 34 is fitted around the rectangular block 31 and the rectangular sleeve 32, the bottom end of the spring 34 is fixedly connected to the top of the central shaft tube 24, and the top end of the spring 34 is fixedly connected to the inner top surface of the protective cover 33.

[0026] Specifically, when the material falls from the crushing device 1 into the cylinder 21, in order to prevent the horizontal pipe 25 and the air nozzle 26 from being directly damaged by the falling material, the protective cover 33 bears the impact of the falling material. When the protective cover 33 is displaced due to the impact of the material, the spring 34 is compressed, which effectively buffers the collision of the material and greatly reduces the risk of damage to the horizontal pipe 25 and the air nozzle 26 by the falling material.

[0027] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0028] Working principle: The refractory material first enters the crushing device 1 for crushing, and the crushed material falls into the cylinder 21. The motor 210 starts, driving the second gear 211 to rotate, which in turn drives the central shaft tube 24 to rotate at the center of the grinding plate 23 in conjunction with the first gear 29. When the central shaft tube 24 rotates, the grinding rollers 28 on both sides roll on the top surface of the grinding plate 23 to grind the material. At the same time, external gas enters the central shaft tube 24 through the air inlet pipe 4 and the rotary joint 41, and then is ejected from multiple air nozzles 26 through the horizontal pipe 25. The ejected gas forms an airflow in the cylinder 21, and the powder is suspended under the airflow. Then, the cyclone separator 5 generates a strong suction force to suck out the suspended powder. The sucked-out powder is discharged and collected through the outlet of the cyclone separator 5. This airflow-assisted screening and cyclone separation collection method replaces the problem of easy clogging of traditional screen holes, ensuring efficient flow and collection of powder.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vertical composite crushing and grinding mill for refractory material production, comprising a crushing device (1), characterized in that: The crushing device (1) is provided with a grinding mechanism (2) at the bottom, and a protective component (3) is provided inside the grinding mechanism (2). The grinding mechanism (2) includes a cylinder (21) connected to the bottom of the crushing device (1) for receiving crushed materials. A grinding plate (23) is installed on the inner wall of the cylinder (21) near the bottom. A central shaft tube (24) is provided through and rotates in the center of the grinding plate (23). A horizontal pipe (25) is symmetrically fixed and connected to the outer wall of the central shaft tube (24) near the top. Multiple air nozzles (26) are fixedly connected to the outer wall of the horizontal pipe (25) on the downward side. A cyclone separator (5) is provided outside the grinding mechanism (2). A connecting pipe (51) is provided at the input end of the cyclone separator (5). The connecting pipe (51) is connected to the inner cavity of the cylinder (21).

2. The vertical composite crushing and grinding mill for refractory material production according to claim 1, characterized in that: The outer wall of the cylinder (21) is provided with an inspection door (212), the bottom surface of the grinding plate (23) is provided with a U-shaped bracket (22), an air inlet pipe (4) is installed through the U-shaped bracket (22), the top end of the air inlet pipe (4) is provided with a rotary joint (41), and the rotary joint (41) is rotatably connected to the bottom end of the central shaft tube (24).

3. A vertical composite crushing and grinding mill for refractory material production according to claim 2, characterized in that: The outer wall of the central shaft tube (24) is fixedly fitted with a first gear (29) below the grinding plate (23). A motor (210) is installed on the inner bottom surface of the U-shaped bracket (22). A second gear (211) that meshes with the first gear (29) is installed on the output shaft end of the motor (210).

4. The vertical composite crushing and grinding mill for refractory material production according to claim 1, characterized in that: The outer wall of the central shaft tube (24) is fixedly fitted with a mounting block (27) above the grinding plate (23). Grinding rollers (28) are rotatably mounted on both sides of the outer surface of the mounting block (27). The outer wall of the grinding rollers (28) is in contact with the top surface of the grinding plate (23).

5. A vertical composite crushing and grinding mill for refractory material production according to claim 1, characterized in that: The protective component (3) includes a rectangular block (31) installed at the top of the central shaft tube (24), a rectangular sleeve (32) is slidably sleeved on the outer wall of the rectangular block (31), a protective cover (33) is fixedly connected to the top surface of the rectangular sleeve (32), and the protective cover (33) covers the outside of the horizontal tube (25).

6. A vertical composite crushing and grinding mill for refractory material production according to claim 5, characterized in that: A spring (34) is fitted around the rectangular block (31) and the rectangular sleeve (32). The bottom end of the spring (34) is fixedly connected to the top end of the central shaft tube (24), and the top end of the spring (34) is fixedly connected to the inner top surface of the protective cover (33).

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