Jet mill through reverse fluid collision and milling process thereof

Abstract

The invention relates to the technical field of material crushing, in particular to a jet mill through reverse fluid collision and a crushing process thereof.The jet mill comprises an outer shell, and a sorting wheel is rotationally installed in the outer shell; the connecting shaft is coaxially connected with the sorting wheel; the deflection assembly is arranged on the connecting shaft and can rotate along with the connecting shaft, the deflection assembly has a first posture and a second posture which are switched by being pushed and pulled, and when the deflection assembly is in the second posture, negative pressure can be generated in the sorting wheel; the centrifugal assembly is connected with the deflection assembly through a connecting rod, and when the connecting shaft rotates, the centrifugal assembly can enable the deflection assembly to be switched from the second posture to the first posture; and the power piece is arranged on the outer shell, a first one-way locking part is formed on the power piece, the first one-way locking part is matched with a second one-way locking part arranged on the centrifugal assembly, when the driving direction of the power piece is changed, the connecting rod can keep static or move relative to the connecting shaft, and the sorting wheel is prevented from being blocked.

Description

Technical Field

[0001] The invention relates to the technical field of material crushing, in particular to an air flow pulverizer through reverse fluid collision and a pulverizing process thereof. Background Art

[0002] The air flow mill impacts, shears and rubs the material through high-speed air flow to achieve material crushing and classification. It has the characteristics of wide application range and high finished product fineness.

[0003] When the air flow mill is working, the sorting wheel rotates to generate suction force, which can suck and sort the crushed material, so that the material dust with the particle size meeting the standard is sucked away. In this process, there is a situation where material dust adheres to the vicinity of the sorting wheel sieve hole. This includes material dust larger than the diameter of the sieve hole adhering to the vicinity of the sieve hole due to static electricity, and large-particle flaky material dust being adsorbed on the sieve hole due to negative pressure. The occurrence of the above situation will cause the length of the sieve hole to be shortened and the screening effect to be reduced.

[0004] There are two solutions to the above situation. For large-particle flaky material dust adsorbed on the sieve holes due to negative pressure, the sorting wheel can be stopped for a certain period of time to make the material particles fall off automatically. For material dust larger than the diameter of the sieve hole due to static electricity adhering to the vicinity of the sieve hole, the negative pressure generated when the sorting wheel rotates cannot be completely shaken off by centrifugal force. If the sorting wheel is reversed, although the centrifugal force and airflow can shake off the material dust, it will cause the material dust to flow back, and neither of them can solve the problem well. Summary of the invention

[0005] The object of the present invention is to provide a jet mill and a pulverizing process thereof through reverse fluid collision to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A jet mill through reverse fluid collision, comprising: An outer shell, wherein a sorting wheel is rotatably mounted in the outer shell; A connecting shaft, coaxially connected to the sorting wheel; A deflection assembly is arranged on the connecting shaft and can rotate with the connecting shaft, the deflection assembly has a first posture and a second posture switched by being pushed or pulled, and when the deflection assembly is in the second posture, negative pressure can be generated in the sorting wheel; a centrifugal assembly connected to the deflection assembly via a connecting rod, wherein when the connecting shaft rotates, the centrifugal assembly can switch the deflection assembly from the second posture to the first posture; A power member is arranged on the outer shell, and a one-way locking portion No. 1 is formed on the power member. The one-way locking portion No. 1 cooperates with the one-way locking portion No. 2 arranged on the centrifugal assembly, so that when the driving direction of the power member changes, the connecting rod can remain stationary or move relatively with respect to the connecting shaft.

[0007] As a further solution of the present invention: the deflection assembly comprises a plurality of impeller plates rotatably mounted on the connecting shaft at equal intervals in a circle and a connecting ring slidably sleeved on the connecting shaft, a connecting plate is mounted on the rotating shaft of the impeller plate, a pulling rod is rotatably mounted on one end of the connecting plate away from the rotating shaft of the impeller plate, and the pulling rod is rotatably connected to the connecting ring; The connecting ring is coaxially connected to the connecting rod.

[0008] As a further solution of the present invention: the centrifugal assembly includes a follower equidistantly mounted on the connecting shaft, the follower is provided with a slide groove along its length direction, a slider is slidably mounted in the slide groove, and the slider is connected to an elastic structure sleeved on the connecting shaft; One side of the elastic structure is connected to the second one-way locking portion, and the other side is connected to the connecting rod.

[0009] As a further solution of the present invention: the elastic structure comprises a follower sleeve slidably arranged on the connecting shaft, a connecting rod is rotatably mounted on the follower sleeve, and one end of the connecting rod away from the follower sleeve is connected to the slider; The elastic structure also includes a columnar spring sleeved on the connecting shaft, one end of the columnar spring is connected to the follower sleeve, and the other end is connected to the follower.

[0010] As a further solution of the present invention: a counterweight is provided at one end of the sliding block away from the connecting rod.

[0011] As a further solution of the present invention: the first one-way locking portion includes a plurality of first differential rods equidistantly arranged on the power member; The second one-way locking portion includes a plurality of second differential rods equidistantly arranged on the follower sleeve; A first hook lock portion is disposed on one side of the first differential bar, and a second hook lock portion is disposed on a side of the second differential bar opposite to the first hook lock portion, and the first hook lock portion is adapted to the second hook lock portion.

[0012] As a further solution of the present invention: it also includes: A bidirectional pumping assembly is disposed in the outer shell, and the bidirectional pumping assembly is capable of pumping two compressed air flows in different directions into the outer shell; The guide component is detachably installed in the outer shell, and the guide component cooperates with the bidirectional pumping component to symmetrically pump up and collide the material in the outer shell.

[0013] As a further solution of the present invention: the bidirectional pumping assembly includes a No. 1 nozzle and a No. 2 nozzle symmetrically arranged at the bottom of the outer shell, and the compressed air flow pumped by the No. 1 nozzle and the No. 2 nozzle is tangent to the inner side of the bottom of the outer shell.

[0014] As a further solution of the present invention: the guide assembly includes a No. 2 guide member arranged at the bottom of the outer shell, and the No. 2 guide member is provided with two No. 1 inclined surfaces; The guide assembly further includes two guide members No. 1 and No. 3 which are symmetrically arranged in the outer shell, wherein the guide member No. 1 is provided with a No. 2 inclined surface, and the guide member No. 3 is provided with an arc surface.

[0015] A process for pulverizing materials using the above-mentioned air flow pulverizer through reverse fluid collision comprises the following steps: Step 1: transport the material to be crushed into the outer shell, connect the external compressed gas pumping device with the No. 1 nozzle and the No. 2 nozzle through pipelines, and then start the external compressed gas pumping device and the power parts; Step 2: When the compressed gas enters the No. 1 nozzle, the material is blown up by the compressed gas and moves along the arc end of the bottom of the outer shell, and when the material moves to the No. 2 nozzle, it can be accelerated for the second time by the compressed gas sprayed by the No. 2 nozzle, and then under the guidance of the No. 3 guide, the two streams of material collide to be broken; Step 3: The power component drives the sorting wheel to rotate. At this time, under the action of the centrifugal component, the deflection component switches to the second posture, so that the sorting wheel generates negative pressure and separates the powder broken into a predetermined particle size in the outer shell; Step 4: The power part drives the sorting wheel to move in the opposite direction. At this time, the centrifugal assembly is in a locked state, and the deflection assembly maintains the first posture. At the same time, the sorting wheel rotates, and the powder adhering to the sieve hole of the sorting wheel is thrown out by centrifugal force. Compared with the prior art, the present invention has the following beneficial effects: By setting the deflection assembly, the impeller plate can have two states, wherein when the impeller plate is in the second state, the rotation of the impeller plate can generate negative pressure in the sorting wheel, thereby sucking the material dust in the outer shell and completing the screening action, and when the impeller plate is in the first state, the rotation of the impeller plate will not generate air flow, so that the dust adhering to the sieve hole can be thrown off by centrifugal force, so that the sieve hole is conductive, and the screening speed during subsequent screening is improved; By setting the No. 1 one-way locking part and the No. 2 one-way locking part, when the driving motor rotates forward, the impeller plate can be switched to the second posture, and when the connecting shaft rotates, negative pressure can be generated in the sorting wheel, thereby sucking the air in the outer shell, and when the driving motor rotates reversely, the No. 1 hook lock part cooperates with the No. 2 hook lock part to lock the follower sleeve, so that in this state, the impeller plate maintains the first posture, and the sorting wheel can rely on centrifugal force to throw away the material dust adhering to the sieve hole, and will not generate reverse airflow to cause the material dust in the dust collector to flow back into the outer shell; By setting up a two-way pumping component and a guide component, the material can be evenly separated when entering the outer shell, and the material flow can move faster under the acceleration of the No. 1 nozzle and the No. 2 nozzle. Then, under the guidance of the No. 3 guide, the two material flows in the outer shell can collide with each other, thereby achieving a crushing effect, and the incompletely crushed material can circulate in the outer shell, thereby improving the crushing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The figure is a schematic structural diagram of an embodiment of a jet mill using reverse fluid collision.

[0017] Figure 2 It is a schematic diagram of the structure of a bidirectional pumping component and a guide component in an embodiment of an air flow pulverizer through reverse fluid collision.

[0018] Figure 3 This is a schematic structural diagram of the movement direction of the material flow in the outer shell in one embodiment of an air flow pulverizer through reverse fluid collision.

[0019] Figure 4 This is a schematic diagram of the internal structure of a classifying wheel in an embodiment of a jet mill using reverse fluid collision.

[0020] Figure 5 for Figure 4 A magnified view of the structure at center.

[0021] Figure 6 It is a schematic diagram of the structure of the centrifugal assembly in one embodiment of a jet mill through reverse fluid collision.

[0022] Figure 7 It is a schematic diagram of the structure of the deflection assembly in one embodiment of the air flow pulverizer by reverse fluid collision.

[0023] Figure 8 This is a structural explosion diagram of a No. 1 one-way locking portion and a No. 2 one-way locking portion in one embodiment of an air flow pulverizer using reverse fluid collision.

[0024] In the figure: 1. support seat; 2. outer shell; 3. air inlet pipe; 4. No. 1 nozzle; 5. No. 2 nozzle; 6. No. 1 guide piece; 7. No. 2 guide piece; 8. No. 3 guide piece; 9. sorting wheel; 10. driving motor; 11. driving shaft; 12. No. 1 differential rod; 1201, No. 1 hook lock part; 13. connecting shaft; 14. follower sleeve; 15. No. 2 differential rod; 1501, No. 2 hook lock part; 16. sliding block; 17. follower; 1701, slide groove; 18. counterweight block; 19. connecting rod; 20. connecting ring; 21. pulling rod; 22. connecting plate; 23. impeller plate; 24. columnar spring; 25. connecting rod. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] In addition, when an element in the present invention is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

[0027] See also Figure 1 to Figure 8 In an embodiment of the present invention, an air flow pulverizer by reverse fluid collision includes: an outer shell 2, a connecting shaft 13, a deflection assembly, a centrifugal assembly and a power part, so that when the driving motor 10 rotates forward, the impeller plate 23 can be switched to the second posture, and when the connecting shaft 13 rotates, a negative pressure can be generated in the sorting wheel 9, thereby sucking the air in the outer shell 2, and when the driving motor 10 rotates reversely, the first hook lock part 1201 cooperates with the second hook lock part 1501 to achieve the locking of the follower sleeve 14, so that in this state, the impeller plate 23 maintains the first posture, at this time, the sorting wheel 9 can rely on centrifugal force to throw off the material dust adhering to the sieve hole, and will not generate reverse airflow to cause the material dust in the dust collector to flow back into the outer shell 2, as follows: A sorting wheel 9 is rotatably installed in the outer shell 2. Specifically, the bottom of the outer shell 2 is set in an arc shape, and the circumferential side of the sorting wheel 9 is equidistantly provided with a plurality of filter holes. After crushing, the material that meets the predetermined particle size can pass through the filter holes and enter the sorting wheel 9, thereby realizing the screening of the crushed material. One side of the sorting wheel 9 is set as an opening, and the material can enter the dust collector through the opening. The connecting shaft 13 is coaxially connected to the sorting wheel 9, and the interior of the connecting shaft 13 is a hollow structure; The deflection assembly is arranged on the connecting shaft 13 and can rotate with the connecting shaft 13. The deflection assembly has a first posture and a second posture switched by being pushed or pulled. When the deflection assembly is in the second posture, negative pressure can be generated in the sorting wheel 9. The deflection assembly includes a plurality of impeller plates 23 rotatably mounted on the connecting shaft 13 at equal intervals in a circumference, and a connecting ring 20 slidably sleeved on the connecting shaft 13, a connecting plate 22 is mounted on the rotating shaft of the impeller plate 23, a pulling rod 21 is rotatably mounted on one end of the connecting plate 22 away from the rotating shaft of the impeller plate 23, and the pulling rod 21 is rotatably connected to the connecting ring 20; The connecting ring 20 is coaxially connected to the connecting rod 19 .

[0028] Specifically, the first posture is: the plurality of impeller plates 23 are in a coplanar state. At this time, when the impeller plates 23 rotate with the sorting wheel 9, no gas flow along the axial direction of the sorting wheel 9 is generated. At this time, when the sorting wheel 9 rotates, the dust adhering to the sorting wheel 9 can be thrown off by centrifugal force, so that the sieve holes on the sorting wheel 9 are connected, avoiding the clogging of the sieve holes during the long-term use of the sorting wheel 9, thereby reducing the screening effect. Furthermore, when the impeller plate 23 is in the first posture, the rotation of the sorting wheel 9 will not generate air flow along the axial direction of the sorting wheel 9. At this time, when the sorting wheel 9 rotates, on the one hand, the sorting wheel 9 will not have the action of sucking material dust, but the dust with a larger diameter can be thrown out under the action of centrifugal force. On the other hand, the sorting wheel 9 will not have the action of reversely extracting air in the dust collector, so as to prevent the backflow of material dust in the dust collector. The second posture is: multiple impeller plates 23 are in a coplanar state, and their respective rotation axes are deflected toward the same side. At this time, when the impeller plates 23 rotate with the sorting wheel 9, an airflow moving outward along the axial direction of the sorting wheel 9 can be generated, so that a negative pressure can be generated in the sorting wheel 9. Under the action of the negative pressure, the gas in the outer shell 2 can be sucked away, and the material dust distributed in the outer shell 2 after crushing can move toward the sorting wheel 9. At this time, the material dust that meets the particle size requirements can enter the sorting wheel 9 through the sieve hole and be guided to the dust collector.

[0029] In detail, when the power part is working, it can drive the connecting shaft 13 to rotate, and drive the sorting wheel 9 to rotate. At this time, the centrifugal assembly is actuated to push the connecting ring 20 toward the impeller plate 23, and the connecting ring 20 is connected to the connecting plate 22 through the pulling rod 21, so that the connecting plate 22 can drive the impeller plate 23 to deflect, so that when the sorting wheel 9 rotates, the air can be pushed along the axial direction of the sorting wheel 9 toward the outside, so that negative pressure is generated in the sorting wheel 9, and then the material dust in the outer shell 2 can be extracted, and at the same time, when the material dust passes through the sieve holes on the sorting wheel 9, screening can be achieved.

[0030] Through the above arrangement, the impeller plate 23 can have two states, wherein, when the impeller plate 23 is in the second posture, the rotation of the impeller plate 23 can generate negative pressure in the sorting wheel 9, thereby sucking the material dust in the outer shell 2 and completing the screening action, and when the impeller plate 23 is in the first posture, the rotation of the impeller plate 23 will not generate air flow, so that the centrifugal force can be used to shake off the dust adhering to the sieve holes, so that the sieve holes are conductive, and the screening speed during subsequent screening is improved.

[0031] See also Figure 4 , Figure 6 , the centrifugal assembly is connected to the deflection assembly through a connecting rod 19, and when the connecting shaft 13 rotates, the centrifugal assembly can switch the deflection assembly from the second posture to the first posture; The centrifugal assembly includes a follower 17 equidistantly mounted on the connecting shaft 13, the follower 17 is provided with a slide groove 1701 along its length direction, a slider 16 is slidably mounted in the slide groove 1701, the slider 16 is connected to an elastic structure sleeved on the connecting shaft 13, and a counterweight 18 is provided at one end of the slider 16 away from the connecting rod 25; One side of the elastic structure is connected to the second one-way locking part, and the other side is connected to the connecting rod 19. The elastic structure includes a follower sleeve 14 slidably arranged on the connecting shaft 13, and a connecting rod 25 is rotatably mounted on the follower sleeve 14. One end of the connecting rod 25 away from the follower sleeve 14 is connected to the slider 16. The elastic structure further includes a cylindrical spring 24 sleeved on the connecting shaft 13 , one end of the cylindrical spring 24 is connected to the follower sleeve 14 , and the other end of the cylindrical spring 24 is connected to the follower member 17 .

[0032] When the connecting shaft 13 rotates, it can drive the follower 17 connected thereto to make a circular motion. At this time, the slider 16 and the counterweight 18 arranged on the follower 17 can make a circular motion and generate centrifugal force. Under the action of the centrifugal force, the slider 16 and the counterweight 18 will move away from the connecting shaft 13 along the length direction of the slide groove 1701. At the same time, the slider 16 will pull the follower sleeve 14 through the connecting rod 25 to move toward the follower 17 along the length direction of the connecting shaft 13, so that the columnar spring 24 that was originally in a compressed state is further compressed. At the same time, the follower sleeve 14 drives the connecting ring 20 to move toward the impeller plate 23 through the connecting rod 19 to deflect the impeller plate 23. At this time, when the connecting shaft 13 rotates, the impeller plate 23 can act on the air to make the air flow.

[0033] Through the above arrangement, when the connecting shaft 13 rotates, the slider 16 and the counterweight 18 can make a circular motion, thereby generating centrifugal force. At the same time, under the action of the centrifugal force, the follower sleeve 14 drives the connecting ring 20 to move and deflect the impeller plate 23. At this time, the rotation of the impeller plate 23 can generate air flow, and a negative pressure is generated in the impeller plate 23, thereby completing the extraction of air in the outer shell 2 and driving the material dust to move toward the sorting wheel 9.

[0034] The force exerted on the connecting ring 20 by the circular motion of the slider 16 and the counterweight 18 is in opposite direction to the force exerted on the connecting ring 20 in the opposite direction due to the wind resistance on the impeller plate 23. However, the force exerted on the connecting ring 20 by the circular motion of the slider 16 and the counterweight 18 can be increased by increasing the weight of the counterweight 18. The force exerted on the connecting ring 20 by the circular motion of the slider 16 and the counterweight 18 and the force exerted on the connecting ring 20 in the opposite direction due to the wind resistance on the impeller plate 23 are in a state of dynamic equilibrium, which has the effect of keeping the impeller plate 23 deflected at a certain angle.

[0035] See also Figure 5~Figure 8 The power member is arranged on the outer shell 2, and a first one-way locking portion is formed on the power member. The first one-way locking portion cooperates with a second one-way locking portion arranged on the centrifugal assembly, so that when the driving direction of the power member changes, the connecting rod 19 can remain stationary or move relatively with respect to the connecting shaft 13; The first one-way locking portion includes a plurality of first differential rods 12 equidistantly arranged on the power member; The second one-way locking portion includes a plurality of second differential rods 15 equidistantly arranged on the follower sleeve 14; A first hook lock portion 1201 is disposed on one side of the first differential bar 12, and a second hook lock portion 1501 is disposed on a side of the second differential bar 15 opposite to the first hook lock portion 1201, and the first hook lock portion 1201 is adapted to the second hook lock portion 1501; Specifically, the power component includes a driving motor 10 mounted on the outer shell 2 , and a driving shaft 11 is coaxially arranged on the output shaft of the driving motor 10 . The driving shaft 11 is integrally formed with the first differential rod 12 .

[0036] It should be noted that the gap between two adjacent first differential bars 12 is greater than the width of the second differential bar 15, and the gap between two adjacent second differential bars 15 is greater than the width of the first differential bar 12, so that the first differential bar 12 can be inserted between two adjacent second differential bars 15, and the second differential bar 15 can be inserted between two adjacent first differential bars 12.

[0037] During use, when the driving motor 10 rotates forward, it can drive the No. 1 differential rod 12 to make a circular motion through the active shaft 11. At this time, the side of the No. 1 differential rod 12 away from the No. 1 hook lock part 1201 can abut against the side of the No. 2 differential rod 15 away from the No. 2 hook lock part 1501, and drive the connecting shaft 13 to make a circular motion through the follower sleeve 14. At this time, when the slider 16 and the counterweight block 18 make a circular motion, the follower sleeve 14 can be pulled away from the active shaft 11, and the side where the No. 1 differential rod 12 abuts against the No. 2 differential rod 15 can slide relative to each other, so that the impeller plate 23 is deflected to switch to the second posture, and when the connecting shaft 13 rotates, negative pressure can be generated in the sorting wheel 9, thereby sucking air in the outer shell 2.

[0038] When the driving motor 10 reverses, the side of the No. 1 differential rod 12 with the No. 1 hook lock part 1201 can move toward the side of the No. 2 differential rod 15 to drive the No. 2 hook lock part 1501, and when these two sides abut, the No. 1 hook lock part 1201 can lock with the No. 2 hook lock part 1501. At this time, when the connecting shaft 13 rotates, although the slider 16 and the counterweight block 18 can still generate centrifugal force, because the follower sleeve 14 is locked, the follower sleeve 14 cannot move toward the impeller plate 23 along the length direction of the connecting shaft 13 relative to the driving shaft 11, that is, in this state, the impeller plate 23 cannot be deflected and maintains the first posture. In this state, when the sorting wheel 9 rotates, it can rely on centrifugal force to throw off the material dust adhering to the sieve hole, and will not generate reverse airflow to cause the material dust in the dust collector to flow back into the outer shell 2.

[0039] Through the above arrangement, when the driving motor 10 rotates forward, the impeller plate 23 can be switched to the second posture, and when the connecting shaft 13 rotates, negative pressure can be generated in the sorting wheel 9, thereby sucking the air in the outer shell 2, and when the driving motor 10 rotates reversely, the No. 1 hook lock part 1201 cooperates with the No. 2 hook lock part 1501 to achieve the locking of the follower sleeve 14, and in this state, the impeller plate 23 maintains the first posture. At this time, the sorting wheel 9 can rely on centrifugal force to shake off the material dust adhering to the sieve hole, and will not generate reverse airflow to cause the material dust in the dust collector to flow back into the outer shell 2.

[0040] See also Figure 2~Figure 3 An air flow pulverizer through reverse fluid collision also includes: a bidirectional pumping component and a guiding component.

[0041] The bidirectional pumping component is arranged in the outer shell 2, and the bidirectional pumping component can pump two compressed air flows with different directions into the outer shell 2. The bidirectional pumping component includes a No. 1 nozzle 4 and a No. 2 nozzle 5 symmetrically arranged at the bottom of the outer shell 2, and the compressed air flows pumped by the No. 1 nozzle 4 and the No. 2 nozzle 5 are tangent to the inner side of the bottom of the outer shell 2, wherein the No. 1 nozzle 4 and the No. 2 nozzle 5 are connected to the air inlet pipe 3 arranged on the outer shell 2, and the No. 1 nozzle 4 and the No. 2 nozzle 5 are specifically Laval nozzles.

[0042] The guide assembly is detachably installed in the outer shell 2. The guide assembly cooperates with the bidirectional pumping assembly to symmetrically pump up and collide the material in the outer shell 2. The guide assembly includes a No. 2 guide member 7 arranged at the bottom of the outer shell 2. The No. 2 guide member 7 is provided with two No. 1 inclined surfaces; The guide assembly also includes two No. 1 guide members 6 and No. 3 guide member 8 symmetrically arranged in the outer shell 2, the No. 1 guide member 6 is provided with a No. 2 inclined surface, and the No. 3 guide member 8 is provided with an arc surface, wherein the No. 1 guide member 6, the No. 2 guide member 7 and the No. 3 guide member 8 are all connected to the outer shell 2 by bolts.

[0043] When in use, the outer shell 2 is fixed on the ground by the support seat 1, and its length direction is parallel to the plumb plane. When the material is poured into the outer shell 2, the material can move downward along the middle position of the outer shell 2 under the guidance of the No. 1 inclined surface, and when the material enters the bottom of the outer shell 2, the No. 2 inclined surface on the No. 1 guide 6 can make the material fall evenly on both sides of the No. 1 guide 6. At the same time, when the material contacts the compressed air sprayed by the No. 1 nozzle 4, kinetic energy can be applied to the material. At this time, the material can move along the circumferential end of the bottom of the outer shell 2. At the same time, when the material moves to the No. 2 nozzle 5, the compressed air sprayed from the No. 2 nozzle 5 can accelerate the material for the second time and make the material continue to move along the side wall of the outer shell 2. When the material moves to the No. 3 guide 8, it is guided by the arc surface on the No. 3 guide 8 to change the direction of movement. At this time, the two material flows moving symmetrically along the inner wall of the outer shell 2 can collide with each other, thereby achieving a crushing effect; After the material is crushed, the larger particle size material can fall under the action of gravity, and then be guided by the first and second inclined surfaces to be evenly distributed on both sides of the bottom of the outer shell 2, and the above process is repeated to achieve cyclic collision and crushing (see the attached Figure 3 , attached Figure 3 The direction indicated by the arrow is the direction of movement of the material flow).

[0044] Through the above arrangement, the material can be evenly separated when entering the outer shell 2, and the material flow can move faster under the acceleration of the No. 1 nozzle 4 and the No. 2 nozzle 5. Then, under the guidance of the No. 3 guide 8, the two material flows in the outer shell 2 can collide with each other, thereby achieving a crushing effect, and the material that is not completely crushed can circulate in the outer shell 2, thereby improving the crushing effect.

[0045] As an embodiment of the present invention, a process for crushing materials using the above-mentioned air flow crusher through reverse fluid collision is also proposed, comprising the following steps: Step 1: transport the material to be crushed into the outer shell 2, and connect the external compressed gas pumping device with the first nozzle 4 and the second nozzle 5 through pipelines, and then start the external compressed gas pumping device and the power parts; Step 2: When the compressed gas enters the No. 1 nozzle 4, the material is blown up by the compressed gas and moves along the arc end of the bottom of the outer shell 2, and when the material moves to the No. 2 nozzle 5, it can be accelerated for a second time by the compressed gas sprayed by the No. 2 nozzle 5, and then under the guidance of the No. 3 guide 8, the two streams of material collide to be broken; Step 3: The power component drives the sorting wheel 9 to rotate. At this time, under the action of the centrifugal component, the deflection component switches to the second posture, so that the sorting wheel 9 generates negative pressure, and the powder crushed into a predetermined particle size in the outer shell 2 is separated; Step 4: The power member drives the sorting wheel 9 to move in the reverse direction. At this time, the centrifugal assembly is in a locked state, and the deflection assembly maintains the first posture. At the same time, the sorting wheel 9 rotates, and the powder adhering to the sieve holes of the sorting wheel 9 is thrown out by centrifugal force.

[0046] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0047] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A jet mill by reverse fluid collision, characterized in that: include: An outer shell (2), wherein a sorting wheel (9) is rotatably mounted inside the outer shell (2); A connecting shaft (13) coaxially connected to the sorting wheel (9); a deflection assembly, arranged on the connecting shaft (13) and capable of rotating with the connecting shaft (13), the deflection assembly having a first posture and a second posture that are switched by being pushed or pulled, and when the deflection assembly is in the second posture, negative pressure can be generated in the sorting wheel (9); a centrifugal assembly connected to the deflection assembly via a connecting rod (19), wherein when the connecting shaft (13) rotates, the centrifugal assembly can switch the deflection assembly from the second posture to the first posture; A power member is arranged on the outer shell (2), and a first one-way locking portion is formed on the power member. The first one-way locking portion cooperates with a second one-way locking portion arranged on the centrifugal assembly to enable the connecting rod (19) to remain stationary or move relative to the connecting shaft (13) when the driving direction of the power member changes.

2. The air flow pulverizer by reverse fluid collision according to claim 1, characterized in that: The deflection assembly comprises a plurality of impeller plates (23) rotatably mounted on the connecting shaft (13) at equal intervals in a circumference, and a connecting ring (20) slidably sleeved on the connecting shaft (13); a connecting plate (22) is mounted on the rotating shaft of the impeller plate (23); a pulling rod (21) is rotatably mounted on one end of the connecting plate (22) away from the rotating shaft of the impeller plate (23); and the pulling rod (21) is rotatably connected to the connecting ring (20); The connecting ring (20) is coaxially connected to the connecting rod (19).

3. The air flow pulverizer by reverse fluid collision according to claim 1, characterized in that: The centrifugal assembly comprises a follower (17) equidistantly mounted on the connecting shaft (13) in a circumferential manner, the follower (17) being provided with a slide groove (1701) along its length direction, a slider (16) being slidably mounted in the slide groove (1701), and the slider (16) being connected to an elastic structure sleeved on the connecting shaft (13); One side of the elastic structure is connected to the second one-way locking portion, and the other side is connected to the connecting rod (19).

4. The air flow pulverizer by reverse fluid collision according to claim 3, characterized in that: The elastic structure comprises a follower sleeve (14) slidably arranged on the connecting shaft (13), a connecting rod (25) being rotatably mounted on the follower sleeve (14), and an end of the connecting rod (25) away from the follower sleeve (14) being connected to the sliding block (16); The elastic structure further comprises a columnar spring (24) sleeved on the connecting shaft (13); one end of the columnar spring (24) is connected to the follower sleeve (14), and the other end is connected to the follower (17).

5. The air flow pulverizer by reverse fluid collision according to claim 4, characterized in that: A counterweight (18) is provided at one end of the sliding block (16) away from the connecting rod (25).

6. The air flow pulverizer by reverse fluid collision according to claim 4, characterized in that: The first one-way locking portion comprises a plurality of first differential rods (12) equidistantly arranged on the power member at a circumferential distance; The second one-way locking portion comprises a plurality of second differential rods (15) equidistantly arranged on the follower sleeve (14) at a circumferential distance; A first hook lock portion (1201) is provided on one side of the first differential rod (12), a second hook lock portion (1501) is provided on a side of the second differential rod (15) opposite to the first hook lock portion (1201), and the first hook lock portion (1201) is adapted to the second hook lock portion (1501).

7. The air flow pulverizer by reverse fluid collision according to claim 6, characterized in that: Also includes: A bidirectional pumping assembly is arranged in the outer shell (2), and the bidirectional pumping assembly is capable of pumping two compressed air flows in different directions into the outer shell (2); A guide component is detachably mounted in the outer shell (2); the guide component cooperates with the bidirectional pumping component to symmetrically pump up and collide the material in the outer shell (2).

8. The air flow pulverizer by reverse fluid collision according to claim 7, characterized in that: The bidirectional pumping assembly comprises a first nozzle (4) and a second nozzle (5) symmetrically arranged at the bottom of the outer shell (2); the compressed air flow pumped by the first nozzle (4) and the second nozzle (5) is tangent to the inner side of the bottom of the outer shell (2).

9. The air flow pulverizer by reverse fluid collision according to claim 7, characterized in that: The guide assembly comprises a No. 2 guide member (7) arranged at the bottom of the outer shell (2), and the No. 2 guide member (7) is provided with two No. 1 inclined surfaces; The guide assembly further comprises two No. 1 guide members (6) and a No. 3 guide member (8) symmetrically arranged in the outer shell (2); the No. 1 guide member (6) is provided with a No. 2 inclined surface, and the No. 3 guide member (8) is provided with an arc surface.

10. A process for pulverizing materials using a jet mill by reverse fluid collision as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: convey the material to be crushed into the outer shell (2), connect the external compressed gas pumping device with the first nozzle (4) and the second nozzle (5) through pipelines, and then start the external compressed gas pumping device and the power parts; Step 2: When the compressed gas enters the No. 1 nozzle (4), the material is blown up by the compressed gas and moves along the arc end of the bottom of the outer shell (2), and when the material moves to the No. 2 nozzle (5), it can be accelerated for a second time by the compressed gas sprayed by the No. 2 nozzle (5), and then under the guidance of the No. 3 guide (8), the two streams of material collide to be broken; Step three: the power component drives the sorting wheel (9) to rotate, and at this time, under the action of the centrifugal component, the deflection component switches to the second posture, so that the sorting wheel (9) generates negative pressure, and the powder that is crushed into a predetermined particle size in the outer shell (2) is separated; Step 4: The power component drives the sorting wheel (9) to move in the reverse direction. At this time, the centrifugal assembly is in a locked state, and the deflection assembly maintains the first posture. At the same time, the sorting wheel (9) rotates, and the powder adhering to the sieve holes of the sorting wheel (9) is thrown out by centrifugal force.

Images