Mica crushing device

Abstract

The utility model belongs to the technical field of jet mills, and particularly relates to a mica crushing device, which comprises a crushing cylinder, a plurality of nozzles and a lifting component, the crushing cylinder is provided with a feed port and a discharge port, the discharge port is arranged at the top of the crushing cylinder, the nozzles are uniformly distributed on the lower inner wall of the crushing cylinder, and the lifting component is arranged on the lower inner wall of the crushing cylinder. A nozzle is arranged in the crushing cylinder, the nozzle direction of the nozzle points upwards to the axis of the crushing cylinder, the input end of the nozzle is externally connected with a compressor, and the material raising assembly is arranged at the bottom of the crushing cylinder and used for raising mica below the nozzle to the position above the nozzle. According to the mica crushing device, the lifting assembly is arranged to lift mica accumulated at the bottom of the crushing barrel, the lifted mica can collide with one another and be crushed under the action of high-speed airflow, the crushing efficiency of the airflow crusher is improved, and regular cleaning of the bottom of the crushing barrel is not needed.

Description

Technical Field

[0001] The utility model belongs to the technical field of air flow pulverizers, and specifically relates to a mica crushing device. Background Technology

[0002] The fluidized bed airflow mill uses the nozzle in the lower grinding chamber to shoot high-speed airflow to accelerate the mica particles added to the machine chamber, so that the particles collide with each other and are crushed, and then rise to the classification chamber. The speed of the classification wheel is used to control the particle size of the discharge material, so that qualified fine powder is discharged from the discharge pipe, and unqualified powder will fall back into the grinding chamber to continue to be crushed.

[0003] In the air flow mill, the high-pressure nozzle on the connecting pipe is tilted upward, and there is some space between the bottom of the crushing box and the connecting pipe. When the raw materials are blown upward, the mica at the bottom of the crushing box will accumulate because it cannot be exposed to the air flow. The raw materials at the bottom of the mill need to be cleaned regularly. Contents of utility model

[0004] The purpose of the utility model is to provide a mica crushing device to solve the problem that the mica at the bottom of the existing crushing box is piled up because it cannot be exposed to the airflow.

[0005] To achieve the above technical purpose, the technical solution adopted by this utility model is as follows:

[0006] A mica crushing device comprises a crushing cylinder, a nozzle and a lifting assembly, wherein the crushing cylinder is provided with an inlet and an outlet, wherein the outlet is provided at the top of the crushing cylinder, wherein the nozzle is provided with a plurality of nozzles evenly distributed on the inner wall of the crushing cylinder near the bottom, wherein the nozzle direction of the nozzle points upward toward the axis of the crushing cylinder, wherein the input end of the nozzle is externally connected to a compressor, wherein the lifting assembly is provided at the bottom of the crushing cylinder, and wherein the lifting assembly is used to lift the mica below the nozzle to above the nozzle.

[0007] In this application, a lifting component is provided to lift the mica accumulated at the bottom of the crushing cylinder. The lifted mica can collide with each other and crush under the action of high-speed airflow, thereby improving the crushing efficiency of the airflow crusher and eliminating the need to regularly clean the bottom of the crushing cylinder.

[0008] Further preferably, the material lifting assembly includes a material lifting plate, a driving rod and a motor, one end of the driving rod is rotatably mounted on the bottom of the crushing cylinder, and the other end is transmission-connected to the output end of the motor, the material lifting plate is arranged close to the bottom wall of the crushing cylinder, and one end of the material lifting plate is fixedly connected to the peripheral side of the driving rod.

[0009] In this application, by rotating the lifting plate arranged at the bottom of the crushing cylinder, the mica accumulated at the bottom of the crushing cylinder is pushed to the top of the air nozzle for further crushing. The lifting plate can fully collide with the mica while driving the mica, thereby assisting in the crushing of the mica.

[0010] Further preferably, the lifting plate is provided with an inclined surface, and the angle between the inclined surface and the rotation direction of the lifting plate is an obtuse angle. In this way, the lifting plate can lift more mica, or increase the lifting height of the mica, so that it can fully contact the airflow and be crushed.

[0011] Further preferably, the lifting plate is an arc-shaped plate, and the lifting plate bulges in the opposite direction of the rotation direction.

[0012] In this application, the lifting plate is set as an arc-shaped plate that bulges in the opposite direction of the rotation direction, which can optimize the phenomenon that the mica moves toward the inner wall of the crushing cylinder under the action of centrifugal force. In this way, the mica can be lifted up near the axis of the crushing cylinder and enter the high wind speed area for crushing.

[0013] Further preferably, a grinding disc is arranged on the inner wall of the pulverizing cylinder corresponding to the lifting plate, and a grinding slot is arranged on the lifting plate for the grinding disc to pass through during rotation.

[0014] In this application, when the lifting plate drives the mica to rotate and rise, the grinding disc can fully collide with the mica, so that the stacked bodies are split, and the mica stacked bodies are pulverized to assist in the crushing.

[0015] Further preferably, the grinding disc is provided with a rotating wheel near one end of the pulverizing cylinder, the rotating wheel is rotatably mounted on the inner wall of the pulverizing cylinder, the rotating wheel is transmission-connected to a driving assembly, and the driving assembly is used to drive the rotating wheel to rotate.

[0016] In this application, a driving assembly is provided to drive the rotating wheel and the grinding disc to rotate, so that the grinding disc can fully collide with the mica aggregates to crush them.

[0017] Further preferably, the driving assembly includes a gear, a driving ring is provided at the free end of the lifting plate, the gear is rotatably mounted between the rotating wheel and the driving ring, the rotating wheel and the driving ring are both provided with teeth, and the gear is meshed with the rotating wheel and the driving ring respectively.

[0018] In this application, a driving ring and a gear are provided as driving components, so that the motor can simultaneously drive the lifting plate and the grinding disc to rotate, without the need for an additional motor, and the grinding disc and the lifting plate move in opposite directions, so that the grinding disc can fully collide with the mica aggregates for crushing.

[0019] Further preferably, the lifting plates and the grinding discs are provided in multiple groups.

[0020] The utility model adopting the above technical solution has the following advantages:

[0021] 1. In this application, a material lifting component is provided to lift the mica accumulated at the bottom of the crushing cylinder. The lifted mica can collide and crush each other under the action of high-speed air flow, improving the crushing efficiency of the air flow crusher and eliminating the need for regular cleaning of the bottom of the crushing cylinder.

[0022] 2. In this application, a material lifting plate rotatably arranged at the bottom of the crushing cylinder is provided to push the mica accumulated at the bottom of the crushing cylinder above the air nozzle for further crushing. While driving the mica, the material lifting plate can fully collide with the mica to assist in crushing the mica.

[0023] 3. In this application, the material lifting plate is set as an arc-shaped plate protruding in the direction opposite to the rotation direction, which can optimize the phenomenon that mica moves towards the inner wall of the crushing cylinder under the action of centrifugal force. In this way, the mica can rise near the axis of the crushing cylinder and enter the high wind speed area for crushing. Description of the Drawings

[0024] The present utility model can be further illustrated by the non-limiting embodiments given in the drawings;

[0025] Figure 1 It is a schematic diagram of the internal structure of the mica crushing device of the present utility model;

[0026] Figure 2 It is another preferred schematic diagram of the material lifting plate of the present utility model;

[0027] Figure 3 It is an installation schematic diagram of the runner and the driving ring of the present utility model;

[0028] The main element symbols are explained as follows:

[0029] 1. Crushing cylinder; 11. Feed inlet; 12. Discharge outlet; 2. Nozzle; 27. Gear; 3. Material lifting component; 31. Material lifting plate; 32. Driving rod; 33. Inclined plane; 34. Grinding plate; 35. Grinding seam; 36. Runner; 37. Driving ring; Detailed Embodiments

[0030] The present utility model will be described in detail below with reference to the drawings and specific embodiments. It should be noted that in the description of the drawings or the specification, similar or identical parts are denoted by the same reference numerals, and the implementation manners not shown or described in the drawings are the forms known to those of ordinary skill in the art. In addition, the directional terms mentioned in the embodiments, such as "up", "down", "top", "bottom", "left", "right", "front", "rear", etc., are only references to the directions in the drawings and are not used to limit the protection scope of the present utility model.

[0031] As Figures 1 to 3As shown, a mica crushing device of the utility model comprises a crushing cylinder 1, a nozzle 2 and a lifting assembly 3. An inlet 11 and a discharge port 12 are provided on the crushing cylinder 1. The discharge port 12 is arranged at the top of the crushing cylinder 1. There are multiple nozzles 2, which are evenly distributed on the inner wall of the crushing cylinder 1 near the bottom. The nozzle direction of the nozzle 2 points upward to the axis of the crushing cylinder 1, and the input end of the nozzle 2 is externally connected to a compressor. The lifting assembly 3 is arranged at the bottom of the crushing cylinder 1, and the lifting assembly 3 is used to lift the mica below the nozzle 2 to the top of the nozzle 2. The mica thrown in from the inlet 11 continuously collides and grinds each other under the action of the nozzle 2, and the stacked bodies are continuously split into smaller particles, which are discharged from the discharge port 12 arranged at the top of the crushing cylinder 1 under the action of the airflow. Preferably, a grading wheel is arranged at the discharge port 12 for adjusting the discharge particle size. Qualified mica will be discharged from the discharge port 12, and unqualified mica will fall back to the crushing cylinder 1 to continue to be crushed.

[0032] The lifting assembly 3 includes a lifting plate 31, a driving rod 32 and a motor. One end of the driving rod 32 is rotatably mounted at the bottom of the pulverizing barrel 1, and the other end is transmission-connected to the output end of the motor. The lifting plate 31 is arranged close to the bottom wall of the pulverizing barrel 1. One end of the lifting plate 31 is fixed to the peripheral side of the driving rod 32. In the process of the motor driving the driving rod 32 and the lifting plate 31 to rotate, the lifting plate 31 can scrape up the pigment accumulated at the bottom of the pulverizing barrel 1, so that the mica falls above the air nozzle 2 and is driven by the air nozzle 2 to be crushed. In the present application, a lifting plate 31 is rotatably arranged at the bottom of the pulverizing barrel 1 to push the mica accumulated at the bottom of the pulverizing barrel 1 to the top of the air nozzle 2 for further grinding. In actual use, a vibration assembly such as an exciter can be provided to drive the mica at the bottom of the pulverizing barrel 1 to the top of the air nozzle 2. In the present application, the use of the lifting plate 31 can fully collide with the mica while driving the mica, thereby assisting in the crushing of the mica.

[0033] In this application, in order to improve the lifting effect of the lifting plate 31, an inclined surface 33 is provided on the lifting plate 31. The inclined surface 33 is inclined from top to bottom in the opposite direction of the rotation direction of the lifting plate 31. In this way, the lifting plate 31 can lift more mica, or increase the lifting height of the mica, so that it can fully contact the airflow and be crushed.

[0034] The lifting plate 31 can be set as a straight plate or an arc-shaped plate. When the lifting plate 31 is set as an arc, the lifting plate 31 bulges in the opposite direction of the rotation. When the lifting plate 31 is set as a straight plate, the mica is easily moved to the inner wall close to the crushing cylinder 1 under the action of centrifugal force. The wind speed here is relatively low, which is not conducive to the crushing of the raw materials. In the present application, the lifting plate 31 is set as an arc-shaped plate bulging in the opposite direction of the rotation, which can optimize the phenomenon that the mica moves toward the inner wall of the crushing cylinder 1 under the action of centrifugal force. In this way, the mica can be lifted up near the axis of the crushing cylinder 1 and enter the high wind speed area for crushing.

[0035] A grinding disc 34 is arranged on the inner wall of the crushing cylinder 1 corresponding to the lifting plate 31. The lifting plate 31 is provided with a grinding slot 35 for the grinding disc 34 to pass through when rotating. The grinding slot 35 is arranged in the middle of the lifting plate 31. When the lifting plate 31 drives the mica to rotate and rise, the grinding disc 34 can fully collide with the mica, so that the stacked body is split, and the mica stacked body is pulverized to assist.

[0036] If Figure 3 , the device also includes a driving assembly. In the present application, the grinding disc 34 is arranged to be rotatably connected to the inner wall of the crushing barrel 1, and the external driving assembly drives the grinding disc 34 to rotate, so that the stacked body is fully contacted with the grinding disc 34 for crushing. Specifically, a rotating wheel 36 is arranged at one end of the grinding disc 34 close to the crushing barrel 1. The rotating wheel 36 is rotatably mounted on the inner wall of the crushing barrel 1, and the rotating wheel 36 is connected to the driving assembly for driving the rotating wheel 36 to rotate. In the present application, a driving assembly is arranged to drive the rotating wheel 36 and the grinding disc 34 to rotate, so that the grinding disc 34 can fully collide with the mica stacked body for crushing.

[0037] The driving assembly includes a gear 27, and a driving ring 37 is provided at the free end of the lifting plate 31. The gear 27 is rotatably mounted between the rotating wheel 36 and the driving ring 37. The rotating wheel 36 and the driving ring 37 are both provided with teeth, and the gear 27 is meshed with the rotating wheel 36 and the driving ring 37 respectively. In the present application, the driving ring 37 and the gear 27 are used to transmit the kinetic energy of the driving rod 32 to the grinding disc 34, and the transmission is performed through the gears. The rotation directions of the driving ring 37 and the rotating wheel 36 are opposite, so that the movement directions of the grinding disc 34 and the lifting plate 31 are opposite, and the grinding disc 34 can fully collide with the mica aggregate to crush it. In actual use, a separate motor can be set to drive the rotating wheel 36 to rotate. In the present application, the driving ring 37 and the gear 27 are set as the driving assembly, so that the motor can drive the lifting plate 31 and the grinding disc to rotate at the same time, without the need to set up an additional motor.

[0038] Preferably, multiple groups of lifting plates 31 and grinding discs 34 are provided. In the present application, by providing multiple groups of lifting plates 31 and grinding discs 34, the crushing efficiency can be improved and the crushing of mica can be accelerated.

[0039] The above is a detailed introduction to a mica crushing device provided by the utility model. The description of the specific embodiment is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A mica crushing device, characterized in that: The invention comprises a crushing cylinder (1), a nozzle (2) and a lifting assembly (3); the crushing cylinder (1) is provided with an inlet (11) and an outlet (12); the outlet (12) is arranged at the top of the crushing cylinder (1); a plurality of nozzles (2) are arranged, which are evenly distributed on the inner wall of the crushing cylinder (1) at the bottom; the nozzle direction of the nozzle (2) points to the axis of the crushing cylinder (1) and is inclined upward from the outside to the inside; the input end of the nozzle (2) is externally connected to a compressor; the lifting assembly (3) is arranged at the bottom of the crushing cylinder (1); the lifting assembly (3) is used to lift the mica below the nozzle (2) to the top of the nozzle (2).

2. The mica crushing device according to claim 1, characterized in that: The material lifting assembly (3) comprises a material lifting plate (31), a driving rod (32) and a motor. The driving rod (32) is rotatably mounted on the bottom of the pulverizing cylinder (1) and is drivingly connected to the output end of the motor. The material lifting plate (31) is arranged closely against the bottom wall of the pulverizing cylinder (1), and one end of the material lifting plate (31) is fixedly connected to the peripheral side of the driving rod (32).

3. The mica crushing device according to claim 2, characterized in that: The lifting plate (31) is provided with an inclined surface (33), and the angle between the inclined surface (33) and the rotation direction of the lifting plate (31) is an obtuse angle.

4. The mica crushing device according to claim 2, characterized in that: The material lifting plate (31) is an arc-shaped plate, and the material lifting plate (31) is convex in the opposite direction of the rotation direction.

5. The mica crushing device according to claim 2, characterized in that: A grinding disc (34) is arranged on the inner wall of the pulverizing cylinder (1) corresponding to the material lifting plate (31), and a grinding slot (35) is arranged in the middle of the material lifting plate (31) for the grinding disc (34) to pass through during rotation.

6. The mica crushing device according to claim 5, characterized in that: The invention also comprises a driving assembly, wherein a rotating wheel (36) is arranged at one end of the grinding disc (34) close to the grinding cylinder (1), and the rotating wheel (36) is rotatably mounted on the inner wall of the grinding cylinder (1). The rotating wheel (36) is transmission-connected to the driving assembly, and the driving assembly is used to drive the rotating wheel (36) to rotate with the driving rod (32) as the central axis.

7. The mica crushing device according to claim 6, characterized in that: The driving assembly comprises a gear (27), a driving ring (37) is provided at the free end of the lifting plate (31), the gear (27) is rotatably mounted between the rotating wheel (36) and the driving ring (37), the rotating wheel (36) and the driving ring (37) are both provided with teeth, and the gear (27) is respectively meshed with the rotating wheel (36) and the driving ring (37).

8. The mica crushing device according to claim 5, characterized in that: The material lifting plates (31) and the grinding plates (34) are both provided in multiple groups.

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