CN219051588U

CN219051588U - Jet mill with grading function

Info

Publication number: CN219051588U
Application number: CN202223346942.4U
Authority: CN
Inventors: 肖雪良; 戈雪弟; 顾正稳
Original assignee: Kunshan Qiangdi Pulverizer Equipment Co ltd
Current assignee: Kunshan Qiangdi Pulverizer Equipment Co ltd
Priority date: 2022-12-13
Filing date: 2022-12-13
Publication date: 2023-05-23
Anticipated expiration: 2032-12-13

Abstract

The utility model discloses an air flow pulverizer with a classification function, which relates to the technical field of air flow pulverizers and comprises a mounting rack, wherein a mounting seat, an air compressor, a classification box and a pulverizing disc are sequentially mounted at the upper end of the mounting rack from left to right, a screw conveyor is mounted at the upper end of the mounting seat, a hopper is mounted at a feed inlet of the screw conveyor, a discharge hole of the screw conveyor is communicated with the classification box, a classification mechanism is arranged at the upper end of the classification box, the classification mechanism extends into the classification box, an accelerating tube is mounted at the output end of the air compressor, the other end of the accelerating tube is communicated with the pulverizing disc, and a draught fan is mounted at the upper end of the pulverizing disc. According to the utility model, the classification mechanism is arranged to be matched with the classification box to realize pre-classification of raw materials, so that raw material particles with overlarge granularity are effectively prevented from entering the crushing disc, the crushing efficiency is improved, the contact area between the crushing cutter and the screen is increased by arranging the cleaning cutter head, and raw material particles adhered in the screen holes can be removed.

Description

Jet mill with grading function

Technical Field

The utility model relates to the technical field of jet mills, in particular to a jet mill with a grading function.

Background

The working principle of the jet mill is as follows: compressed air is dried, and the dried powder enters the crushing cavity through a nozzle. In the crushing cavity, the materials can be crushed by high-pressure air flow. And then separating the coarse and fine materials under the centrifugal force generated by the classifying turbine. The particles meeting the particle size requirement enter a cyclone separator and a dust remover to be collected, and the particles not meeting the particle size requirement are continuously crushed.

The existing jet mill lacks pre-classification measures for raw materials, and the grinding efficiency of the jet mill is affected due to uneven particle size distribution in the raw materials and long raw material grinding time with overlarge particle size, so that the jet mill with the classification function is provided.

Disclosure of Invention

The utility model mainly aims to provide an airflow crusher with a grading function, which can effectively solve the problems in the background technology.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides an air current pulverizer with classifying function, includes the installing frame, installing frame upper end from left to right installs mount pad, air compressor, classifying box and crushing dish in proper order, screw conveyer is installed to the mount pad upper end, the hopper is installed to screw conveyer's feed inlet, screw conveyer's discharge gate communicates with each other with the classifying box, classifying box upper end is provided with classification mechanism, classification mechanism extends to classifying box inside, the accelerating tube is installed to the air compressor output, the accelerating tube other end communicates with each other with the crushing dish, the draught fan is installed to crushing dish upper end.

Preferably, the classifying mechanism comprises a motor and a screen, the lower end of the motor is fixedly connected with the upper end of the classifying box, the output end of the motor penetrates through the upper wall of the classifying box and is provided with a rotating shaft, the lower end of the rotating shaft is movably connected with the lower wall of the inner cavity of the classifying box, the outer surface of the rotating shaft is fixedly sleeved with a crushing cutter, the outer surface of the screen is fixedly connected with the inner wall of the classifying box, and the lower end of the crushing cutter is slidably connected with the upper end of the screen.

Preferably, the lower end of the classifying box is provided with a through hole, the lower end of the classifying box is provided with a connecting pipe, the connecting pipe is communicated with the accelerating pipe, the lower wall of the inner cavity of the classifying box is provided with a reinforcing seat, and the reinforcing seat is movably connected with the rotating shaft in a penetrating way.

Preferably, the side end face of the crushing cutter is provided with a cleaning cutter head which is in sliding connection with the screen.

Preferably, the rotating shaft penetrates the screen.

Preferably, the screen mesh is positioned below the discharge port of the screw conveyor.

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

1. when the raw materials are crushed, the raw materials firstly enter the classifying box, a motor is started, the output end of the motor drives a rotating shaft to rotate, the rotating shaft drives a crushing cutter to rotate at a high speed, the high-speed rotating crushing cutter breaks up and crushes the raw materials, when the granularity of the raw materials is smaller than the aperture of a screen, the raw materials fall into an accelerating tube, at the moment, the air compressor compresses gas to accelerate the raw material particles, so that the raw material particles collide with each other, the crushing purpose is achieved, the raw material particles with the granularity larger than the aperture of the screen are continuously crushed by the crushing cutter, the raw material particles with the granularity larger than the granularity are effectively prevented from entering a crushing disc, and the crushing efficiency is improved;

2. through setting up the area of contact of clean tool bit increase crushing sword and screen cloth, and the raw materials granule that adheres to in the sieve mesh can be clear away to high-speed pivoted clean tool bit, ensures the normal clear of raw materials classification.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic perspective view of a classification mechanism;

FIG. 3 is a schematic cross-sectional view of the classifying box;

fig. 4 is a schematic perspective view of a crushing blade.

In the figure: 1. a frame is installed; 2. a mounting base; 3. a screw conveyor; 4. a hopper; 5. a classifying box; 6. a classification mechanism; 7. an accelerating tube; 8. an air compressor; 9. a shredder plate; 10. an induced draft fan; 51. a connecting pipe; 52. a through hole; 53. a reinforcing seat; 61. a motor; 62. a rotation shaft; 63. a crushing knife; 64. a screen; 631. the tool bit is cleaned.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1-4, an air flow pulverizer with a classification function comprises a mounting frame 1, as a specific implementation manner, four corners at the lower end of the mounting frame 1 are respectively provided with supporting legs, the upper end of the mounting frame 1 is sequentially provided with a mounting seat 2, an air compressor 8, a classification box 5 and a pulverizing disc 9 from left to right, as a specific implementation manner, the inner cavity of the classification box 5 in the specific implementation manner is of a lower-fine upper-coarse structure, the upper end of the mounting seat 2 is provided with a screw conveyor 3, the feeding speed is adjusted through the screw conveyor 3, excessive raw materials are prevented from being accumulated in the classification box 5, a hopper 4 is arranged at a feeding port of the screw conveyor 3, as a specific implementation manner, a discharging port of the screw conveyor 3 is communicated with the classification box 5, the upper end of the classification box 5 is provided with a classification mechanism 6, the classification mechanism 6 extends into the interior of the classification box 5, the output end of the air compressor 8 is provided with an accelerating tube 7, the other end of the air compressor 8 is provided with an induced draft fan 10, and the other end of the classification mechanism is provided with an induced draft fan 10 as an implementation manner.

During the use, the raw materials gets into screw conveyer 3 by hopper 4, input to classifying box 5 through screw conveyer 3, particle that the particle diameter is less than the sieve mesh diameter in the raw materials granule drops to accelerating tube 7, air compressor 8 compressed gas makes the raw materials granule accelerate, let bump between granule and the granule, reach kibbling purpose, draught fan 10 produces drag to the raw materials in the crushing dish 9, the kibbling granule is discharged because centrifugal force is less than the drag of air and gets into the dust remover and collect, great granule is because centrifugal force is great continues to accelerate circular motion along crushing dish 9 periphery and is continuously accelerated by the air current and the continuous collision of slower granule reaches crushing effect, this process is constantly repeatedly continuous operation.

Further, the classifying mechanism 6 includes a motor 61 and a screen 64, the lower end of the motor 61 is fixedly connected with the upper end of the classifying box 5, the output end of the motor 61 penetrates through the upper wall of the classifying box 5 and is provided with a rotating shaft 62, the lower end of the rotating shaft 62 is movably connected with the lower wall of the inner cavity of the classifying box 5, and as a specific implementation mode, three crushing cutters 63 are arranged on the outer surface of the rotating shaft 62, three crushing cutters 63 are distributed in an annular array, the outer surface of the screen 64 is fixedly connected with the inner wall of the classifying box 5, and the lower end of the crushing cutters 63 is slidably connected with the upper end of the screen 64.

Further, the lower end of the classifying box 5 is provided with a through hole 52, the lower end of the classifying box 5 is provided with a connecting pipe 51, the connecting pipe 51 is communicated with the accelerating pipe 7, the lower wall of the inner cavity of the classifying box 5 is provided with a reinforcing seat 53, and as a specific implementation mode, the reinforcing seat 53 in the embodiment is in a circular truncated cone-shaped structure, so that raw materials fall into the through hole 52 conveniently, and the reinforcing seat 53 is movably connected with the rotating shaft 62 in a penetrating way.

Further, a cleaning blade 631 is mounted to the side end surface of the crushing blade 63, and the cleaning blade 631 is slidably connected to the screen 64.

Further, the rotating shaft 62 penetrates the screen 64.

Further, the screen 64 is located below the discharge port of the screw conveyor 3.

It should be noted that, the present utility model is an airflow crusher with classification function, through setting up classification mechanism 6 and matching classification box 5 to realize pre-classification of raw materials, when crushing, raw materials first enter classification box 5, start motor 61, motor 61 output drives rotation axis 62 to rotate, rotation axis 62 drives crushing knife 63 to rotate at high speed, high-speed rotating crushing knife 63 breaks up and crushes raw materials, when the granularity of raw materials is smaller than the aperture of screen 64 and falls into accelerating tube 7, at this moment, air compressor 8 compresses gas to accelerate raw material particles, collision between particles occurs, so as to achieve the purpose of crushing, if granularity is larger than the aperture of screen 64, raw material particles with overlarge granularity are continuously crushed by crushing knife 63, thus effectively avoiding raw material particles entering crushing disc 9, and improving crushing efficiency; the contact area between the crushing cutter 63 and the screen 64 is increased by providing the cleaning cutter 631, and the cleaning cutter 631 rotating at a high speed can remove the raw material particles adhered in the screen holes, ensuring the normal progress of the classification of the raw materials.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an air current pulverizer with classifying function, includes installation frame (1), its characterized in that: install mount pad (2), air compressor (8), classifying box (5) and crushing dish (9) from left to right in proper order in installing frame (1) upper end, screw conveyer (3) are installed to mount pad (2) upper end, hopper (4) are installed to the feed inlet of screw conveyer (3), the discharge gate and the classifying box (5) of screw conveyer (3) communicate with each other, classifying box (5) upper end is provided with classifying mechanism (6), classifying mechanism (6) extend to classifying box (5) inside, accelerating tube (7) are installed to air compressor (8) output, accelerating tube (7) other end communicates with each other with crushing dish (9), draught fan (10) are installed to crushing dish (9) upper end.

2. A jet mill having a classification function as claimed in claim 1, wherein: the classifying mechanism (6) comprises a motor (61) and a screen (64), the lower end of the motor (61) is fixedly connected with the upper end of the classifying box (5), the output end of the motor (61) penetrates through the upper wall of the classifying box (5) and is provided with a rotating shaft (62), the lower end of the rotating shaft (62) is movably connected with the lower wall of the inner cavity of the classifying box (5), the outer surface of the rotating shaft (62) is fixedly sleeved with a crushing cutter (63), the outer surface of the screen (64) is fixedly connected with the inner wall of the classifying box (5), and the lower end of the crushing cutter (63) is slidably connected with the upper end of the screen (64).

3. A jet mill having a classification function as claimed in claim 2, wherein: the lower end of the classifying box (5) is provided with a through hole (52), the lower end of the classifying box (5) is provided with a connecting pipe (51), the connecting pipe (51) is communicated with the accelerating pipe (7), the lower wall of the inner cavity of the classifying box (5) is provided with a reinforcing seat (53), and the reinforcing seat (53) is movably inserted and connected with a rotating shaft (62).

4. A jet mill having a classification function as claimed in claim 3, wherein: the side end face of the crushing cutter (63) is provided with a cleaning cutter head (631), and the cleaning cutter head (631) is in sliding connection with the screen (64).

5. A jet mill having a classification function as claimed in claim 4, wherein: the rotating shaft (62) penetrates the screen (64).

6. A jet mill having a classification function as claimed in claim 5, wherein: the screen (64) is positioned below the discharge port of the screw conveyor (3).