Jet mill capable of conveniently cleaning discharger

Abstract

The jet mill with the discharger convenient to clean comprises a barrel extending in the vertical direction, a crushing mechanism, a feeding pipe and a grading mechanism connected to the upper end of the barrel, the grading mechanism comprises a grading wheel and the discharger, and the upper end of the barrel is provided with a through hole for the discharger to penetrate out. A cover plate used for covering the through hole is detachably connected to the outer wall of the barrel, and the discharging device is fixedly connected to the cover plate. A sliding rail pair is arranged on the outer wall of the cylinder body and comprises a sliding block fixedly connected to the outer wall of the cylinder body and a sliding rail slidably arranged in the sliding block in a penetrating mode, the sliding direction of the sliding rail is parallel to the rotating axis of the grading wheel, one end of the sliding rail is connected with the cover plate, and the other end of the sliding rail is connected with a disengagement stopping device; when the sliding rail slides relative to the sliding block to drive the cover plate to be separated from the barrel, the discharging device can move along with the cover plate, so that the small air seal holes in the end face of the discharging device are all moved out of the barrel, the small air seal holes can be conveniently cleaned, reset operation is simple after cleaning, and gaps can be conveniently adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of air flow pulverizers, in particular to an air flow pulverizer with a convenient discharging device for cleaning. Background Art

[0002] Air flow mill is a common pulverizing equipment, which usually includes a pulverizing mechanism and a grading mechanism. The grading mechanism is generally composed of a rotatable grading wheel and a discharger matching the grading wheel. The discharger is cylindrical and fixed on the machine body so as to discharge the material passing through the gap between the grading wheel blades to achieve discharging.

[0003] The gap between the grading wheel and the discharger is very important. If the gap is too large, the air sealing effect is poor, and materials with larger particles are easily mixed in through the gap, resulting in incomplete crushing of the discharged materials. If the gap is too small, the swing of the grading wheel during rotation is easy to rub the discharger, resulting in uneven rotation of the grading wheel. Generally speaking, the gap should be set at 0.25-0.35mm. In order to achieve the air sealing effect, a circle of evenly distributed air sealing holes is usually set on the end face of the discharger, and the air outlet pressure is maintained at 0.2-0.3MPa. After long-term use, the air sealing holes are easily blocked by materials and need to be cleaned in time to ensure the air sealing effect.

[0004] The conventional cleaning method is to remove the discharger from the grading cylinder along its radial direction and then clean it. For small airflow mills, the discharger is small in size and light in weight, so this method is not wrong. However, for medium or large airflow mills, the discharger is large in size and heavy in weight. It is difficult to take it up and down, and it is easy to be damaged by bumps. In addition, it is difficult to reset it after cleaning, and it is difficult to keep the gap consistent before and after cleaning. Utility Model Content

[0005] The purpose of the utility model is to overcome one or more shortcomings in the prior art and to provide an air flow pulverizer that is convenient for cleaning a discharger.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is to conveniently clean the airflow crusher of the discharger, comprising:

[0007] a cylinder extending in a vertical direction;

[0008] Crushing mechanism;

[0009] Feed pipe;

[0010] A grading mechanism connected to the upper end of the cylinder, comprising a grading wheel rotatably disposed within the cylinder and a discharger coaxially disposed with the grading wheel and maintaining a gap therewith, wherein the rotation axis of the grading wheel extends horizontally, and the discharger is provided with an air-sealing hole on the end face facing the grading wheel;

[0011] A through hole corresponding to the discharger and used for the discharger to pass through is formed at the upper end of the cylinder, a cover plate for covering the through hole is detachably connected to the outer wall of the cylinder, and the discharger is fixedly connected to the cover plate;

[0012] The outer wall of the cylinder is further provided with a slide rail pair, which includes a slider fixedly connected to the outer wall of the cylinder and a slide rail slidably arranged in the slider, the sliding direction of the slide rail is parallel to the rotation axis of the grading wheel, one end of the slide rail is connected to the cover plate, and the other end is connected to a stopper;

[0013] When the slide rail slides relative to the slider to drive the cover plate to separate from the cylinder, the discharger can move along with the cover plate, so that all the air-sealing holes are moved out of the cylinder.

[0014] Preferably, there are two groups of the slide rail pairs, and the two groups of the slide rail pairs are symmetrically distributed on both sides of the through hole.

[0015] Preferably, the slide rail can be slidably arranged in the slider along its own axis, and the axis of the slide rail is parallel to the rotation axis of the grading wheel and is located in the same horizontal plane.

[0016] Preferably, the end of the slide rail is connected to the cover plate via a connecting transverse plate.

[0017] Preferably, the cross section of the slide rail is circular.

[0018] Preferably, the slider is connected to the outer wall of the cylinder through a slider bracket, and the slider bracket includes two first vertical plates arranged on the outer wall of the cylinder and a second vertical plate connected to the end faces of the two first vertical plates away from the cylinder, the two first vertical plates are symmetrically distributed on both sides of the axis of the cylinder, and the second vertical plate extends along the tangential direction of the cylinder.

[0019] Preferably, the cover plate is detachably connected to the outer wall of the cylinder by connecting bolts.

[0020] Preferably, the outer wall of the cylinder is provided with a plane section perpendicular to the rotation axis of the grading wheel, and the through hole is opened on the plane section.

[0021] Preferably, the crushing mechanism includes a nozzle, a gas distribution ring, and a connecting pipe. The nozzle is arranged at the lower end of the cylinder. There are multiple nozzles and they are evenly distributed around the axis of the cylinder. The gas distribution ring surrounds the outside of the cylinder. There are multiple connecting pipes and they are arranged one-to-one with the nozzles. One end of the connecting pipe is connected to the nozzle, and the other end is connected to the gas distribution ring, and the gas distribution ring is supported above the nozzle.

[0022] Further preferably, the feed pipe is connected to the middle part of the cylinder and is located above the valve ring, and the lower end of the feed pipe extends obliquely from top to bottom toward the direction close to the axis of the cylinder, and the axis of the lower end of the feed pipe intersects with the axis of all the nozzles at one point.

[0023] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0024] The utility model provides an air flow crusher with convenient cleaning of the discharger, comprising a cylinder extending in a vertical direction, a crushing mechanism, a feeding pipe, and a grading mechanism connected to the upper end of the cylinder, the grading mechanism comprising a grading wheel and a discharger, and a through hole for the discharger to pass through is provided at the upper end of the cylinder, and a cover plate for covering the through hole is detachably connected to the outer wall of the cylinder, so that the discharger is fixedly connected to the cover plate; a slide rail pair is provided on the outer wall of the cylinder, so that it includes a slider fixedly connected to the outer wall of the cylinder and a slide rail slidably provided in the slider, so that the sliding direction of the slide rail is parallel to the rotation axis of the grading wheel, so that one end thereof is connected to the cover plate, and the other end is connected to the anti-slip device; when the slide rail slides relative to the slider to drive the cover plate to separate from the cylinder, the discharger can move with the cover plate, so that the air-sealing holes on the end face of the discharger are all moved out of the cylinder, so that the air-sealing holes can be conveniently cleaned, and the reset operation after cleaning is simple, and the gap can be conveniently adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional schematic diagram of a preferred embodiment of the utility model.

[0026] Figure 2 yes Figure 1 Schematic diagram of the main view.

[0027] Figure 3 yes Figure 2 Schematic cross-sectional view in the AA direction.

[0028] Figure 4 yes Figure 2 Schematic cross-sectional view in the BB direction.

[0029] Figure 5 yes Figure 1 A three-dimensional schematic diagram of the middle-level classification agency.

[0030] Figure 6 yes Figure 5 The three-dimensional schematic diagram after the grading wheel is hidden, and the viewing angle is adjusted for easy observation.

[0031] Among them: 10. Cylinder; 11. Through hole; 12. Cover plate; 121. Connecting bolt; 131. Slider; 132. Slide rail; 133. Anti-slip device; 134. Connecting horizontal plate; 135. First vertical plate; 136. Second vertical plate; 14. Flat section; 20. Crushing mechanism; 21. Nozzle; 22. Gas distribution ring; 23. Connecting pipe; 30. Feed pipe; 40. Classifying mechanism; 41. Classifying wheel; 42. Discharger; 421. Air seal hole; 50. Base frame. DETAILED DESCRIPTION

[0032] The preferred embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0033] like Figures 1 to 6 As shown, the air flow mill for convenient cleaning of the discharger provided by the present invention comprises a cylinder 10, a crushing mechanism 20, a feeding pipe 30, and a grading mechanism 40; wherein the cylinder 10 extends in the vertical direction; the crushing mechanism 20 is arranged at the lower end of the cylinder 10, the crushing mechanism 20 comprises a nozzle 21, an air distribution ring 22, and a connecting pipe 23, the nozzle 21 is arranged at the lower end of the cylinder 10, the nozzles 21 are four and are evenly distributed around the axis of the cylinder 10, the air distribution ring 22 surrounds the outer side of the lower end of the cylinder 10, the connecting pipe 23 is four and is connected to the nozzle 21 The connecting pipe 23 is arranged in a corresponding manner, extending in the up-down direction, the lower end of the connecting pipe 23 is connected to the nozzle 21, and the upper end is connected to the gas distribution ring 22, and the gas distribution ring 22 is supported above the nozzle 21; the feed pipe 30 is connected to the middle of the cylinder 10 and is located above the gas distribution ring 23, the upper end of the feed pipe 30 extends in the vertical direction, and the lower end of the feed pipe 30 extends obliquely from top to bottom toward the direction close to the axis of the cylinder 10, and the axis of the lower end of the feed pipe 30 intersects with the axis of all the nozzles 21 at one point; the grading mechanism 40 is connected to At the upper end of the cylinder 10, the grading mechanism 40 includes a grading wheel 41 rotatably arranged in the cylinder 10 and a discharger 42 coaxially arranged with the grading wheel 41 and maintaining a gap. The rotation axis of the grading wheel 41 extends in the horizontal direction, and the end face of the discharger 42 facing the grading wheel 41 is provided with an air-sealing hole 421; the upper end of the cylinder 10 is provided with a through hole 11 corresponding to the discharger 42 and used for the discharger 42 to pass through, and a cover plate 12 for covering the through hole 11 is detachably connected to the outer wall of the cylinder 10, and the discharger 42 is fixedly connected to the cover plate 12 On the outer wall of the cylinder 10 is also provided with a slide rail pair, which includes a slider 131 fixedly connected to the outer wall of the cylinder 10 and a slide rail 132 slidably arranged in the slider 131. The sliding direction of the slide rail 132 is parallel to the rotation axis of the grading wheel 41. One end of the slide rail 132 is connected to the cover plate 12, and the other end is connected to the anti-slip device 133; when the slide rail 132 slides relative to the slider 131 to drive the cover plate 12 to separate from the cylinder 10, the discharger 42 can move with the cover plate 12, so that all the air-sealing holes 121 are moved out of the cylinder 10.

[0034] The advantage of this arrangement is that the air seal holes can be easily cleaned, and the reset operation after cleaning is simple, and the gap between the discharger and the grading wheel can be easily adjusted during reset.

[0035] In order to improve the stability of the movement of the cover plate 12 and the discharger 42 on the cover plate 12, in this embodiment, there are two groups of slide rail pairs 13, and the two groups of slide rail pairs 13 are symmetrically distributed on both sides of the through hole 11. Furthermore, the slide rail 132 can be slidably arranged along its own axis in the slider 131, and the axis of the slide rail 132 is parallel to the rotation axis of the grading wheel 41 and is located in the same horizontal plane. Furthermore, the end of the slide rail 132 is connected to the cover plate 12 through a connecting cross plate 134. At the same time, the cross section of the slide rail 132 is circular.

[0036] To facilitate the fixation of the slider 131, in this embodiment, the slider 131 is connected to the outer wall of the cylinder 10 through a slider bracket. The slider bracket includes two first vertical plates 135 arranged on the outer wall of the cylinder 10 and a second vertical plate 136 connected to the end surfaces of the two first vertical plates 135 away from the cylinder 10. The two first vertical plates 135 are symmetrically distributed on both sides of the axis of the cylinder 10, and the second vertical plate 136 extends along the tangential direction of the cylinder 10.

[0037] To facilitate the arrangement of the cover plate 10, in this embodiment, the cover plate 12 is detachably connected to the outer wall of the cylinder 10 by connecting bolts 121. Furthermore, the outer wall of the cylinder 10 is provided with a flat section 14 perpendicular to the rotation axis of the grading wheel 41, and the through hole 11 is opened on the flat section 14.

[0038] In this embodiment, the air flow mill further includes a base frame 50 , and the cylinder 10 is disposed on the base frame 50 to facilitate fixing the cylinder 10 .

[0039] The above embodiments are only for illustrating the technical concept and features of the present invention. Their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A jet mill with a convenient discharger cleaning device, comprising: a cylinder extending in a vertical direction; Crushing mechanism; Feed pipe; A grading mechanism connected to the upper end of the cylinder, comprising a grading wheel rotatably disposed within the cylinder and a discharger coaxially disposed with the grading wheel and maintaining a gap therewith, wherein the rotation axis of the grading wheel extends horizontally, and the discharger is provided with an air-sealing hole on the end face facing the grading wheel; Its characteristics are: A through hole corresponding to the discharger and used for the discharger to pass through is formed at the upper end of the cylinder, a cover plate for covering the through hole is detachably connected to the outer wall of the cylinder, and the discharger is fixedly connected to the cover plate; The outer wall of the cylinder is further provided with a slide rail pair, which includes a slider fixedly connected to the outer wall of the cylinder and a slide rail slidably arranged in the slider, the sliding direction of the slide rail is parallel to the rotation axis of the grading wheel, one end of the slide rail is connected to the cover plate, and the other end is connected to a stopper; When the slide rail slides relative to the slider to drive the cover plate to separate from the cylinder, the discharger can move along with the cover plate, so that all the air-sealing holes are moved out of the cylinder.

2. The airflow mill with a convenient discharger cleaning device according to claim 1, characterized in that: There are two groups of slide rail pairs, and the two groups of slide rail pairs are symmetrically distributed on both sides of the through hole.

3. The airflow mill with a convenient discharger cleaning device according to claim 1, characterized in that: The slide rail can be slidably arranged in the slider along its own axis, and the axis of the slide rail is parallel to the rotation axis of the grading wheel and is located in the same horizontal plane.

4. The airflow mill with a convenient discharger cleaning device according to claim 1, characterized in that: The end of the slide rail is connected to the cover plate through a connecting transverse plate.

5. The airflow mill with a convenient discharger cleaning device according to claim 1, characterized in that: The cross section of the slide rail is circular.

6. The airflow mill with a convenient discharger cleaning device according to claim 1, characterized in that: The slider is connected to the outer wall of the cylinder through a slider bracket. The slider bracket includes two first vertical plates arranged on the outer wall of the cylinder and a second vertical plate connected to the end surfaces of the two first vertical plates away from the cylinder. The two first vertical plates are symmetrically distributed on both sides of the axis of the cylinder, and the second vertical plate extends along the tangential direction of the cylinder.

7. The airflow mill with a convenient discharger cleaning device according to claim 1, characterized in that: The cover plate is detachably connected to the outer wall of the cylinder through connecting bolts.

8. The airflow mill with a convenient discharger cleaning device according to claim 1, characterized in that: The outer wall of the cylinder is provided with a plane section perpendicular to the rotation axis of the classifying wheel, and the through hole is opened on the plane section.

9. The airflow mill with a convenient discharger cleaning device according to claim 1, characterized in that: The crushing mechanism includes a nozzle, a gas distribution ring, and a connecting pipe. The nozzle is arranged at the lower end of the cylinder. There are multiple nozzles and they are evenly distributed around the axis of the cylinder. The gas distribution ring surrounds the outside of the cylinder. There are multiple connecting pipes and they are arranged one-to-one corresponding to the nozzles. One end of the connecting pipe is connected to the nozzle, and the other end is connected to the gas distribution ring, and the gas distribution ring is supported above the nozzle.

10. The airflow pulverizer with convenient discharger cleaning according to claim 9, characterized in that: The feed pipe is connected to the middle of the cylinder and is located above the valve ring. The lower end of the feed pipe extends obliquely from top to bottom toward the axis of the cylinder. The axis of the lower end of the feed pipe intersects with the axis of all the nozzles at one point.

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