CN114042519A

CN114042519A - Collision type air flow crusher

Info

Publication number: CN114042519A
Application number: CN202111325973.9A
Authority: CN
Inventors: 车金铎
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-11-10
Filing date: 2021-11-10
Publication date: 2022-02-15

Abstract

The invention relates to the technical field of jet milling, and discloses a collision type jet mill which comprises a milling chamber, wherein an air nozzle is fixedly connected inside the milling chamber, a screen below the air nozzle is connected inside the milling chamber in a sliding manner, a fixing box is fixedly connected in the middle of the top end of the screen, a wheel rod is movably connected to one side of the top end of the milling chamber, a sliding groove located on the outer side of the wheel rod is formed in one side of the top end of the milling chamber, and ring teeth located inside the sliding groove are meshed with the outer side of the wheel rod. Through the setting of wheel pole in the ring tooth is inside, make the ring tooth can reciprocate in the inside of spout, make the ring tooth rotate by the meshing of wheel pole, ring tooth outside soft board winding pulling screen cloth rebound makes the screen cloth approach in the bottom of air nozzle, makes the screen cloth receive the air current effect increase of air nozzle to make the screen cloth top fall into the material and driven the position that upwards gets into the material collision by the air current, avoid the material deposit of grinding chamber bottom, improve the powder process rate of material.

Description

Collision type air flow crusher

Technical Field

The invention relates to the technical field of jet milling, in particular to a collision type jet mill.

Background

In the jet mill, the material enters the bin through the valve, the material is sent into the grinding chamber by the screw, the air is sprayed into the grinding chamber through the reverse nozzle to make the material fluidized, the accelerated material is converged at the junction of the nozzles, the particles of the material collide with each other, rub and shear to be crushed, the crushed material is conveyed to the turbine type superfine classifier by the ascending air flow, the fine powder product is discharged through the outlet, the coarser particles return to the grinding chamber along the wall of the mill, and the tail gas enters the dust remover to be discharged.

In an airflow crusher, when the moisture of a material is high, the material is sprayed into a grinding chamber, and simultaneously, the material and the material are agglomerated and fall to the bottom of the grinding chamber, so that the material cannot be blown up again by airflow, and the material is continuously accumulated at the bottom of the grinding chamber; and the sieve mesh is easy to block up after the sieve is used for a long time, so that the influence on the use of the whole device is avoided, and the sieve is required to be cleaned regularly.

Disclosure of Invention

Aiming at the defects of the prior colliding jet mill in the background art in the using process, the invention provides the colliding jet mill which has the advantages of deposition prevention and high powder yield, and solves the technical problems in the background art.

The invention provides the following technical scheme: a collision type air flow crusher comprises a grinding chamber, an air nozzle is fixedly connected inside the grinding chamber, a screen below the air nozzle is connected inside the grinding chamber in a sliding mode, a fixing box is fixedly connected to the middle of the top end of the screen, a wheel rod is movably connected to one side of the top end of the grinding chamber, a sliding groove located on the outer side of the wheel rod is formed in one side of the top end of the grinding chamber, ring teeth located inside the sliding groove are meshed with the outer side of the wheel rod, the width of the sliding groove is the same as the diameter of the ring teeth, a sleeve column located below the sliding groove is fixedly connected inside the grinding chamber, a sliding plate is connected to the top end of the sleeve column in a sliding mode, a square hole is formed in the middle of the sliding plate, a limiting spring is fixedly connected to one side of the sliding plate, a soft plate is wound on the outer side of the ring teeth, the other end of the soft plate is connected with two sides of the screen, a pushing plate located right below the wheel rod is fixedly connected to one side of the soft plate, the top sliding connection of catch plate has movable post, the inside fixedly connected with reset spring of activity post, one side fixedly connected with of soft board is located the fixed head of catch plate top.

Preferably, the blades are fixedly connected to the fixing boxes at equal angles in the circumferential direction.

Preferably, the shape of the screen and the shape of the fixed box are both in a circular truncated cone shape, and the top end face of the screen is connected with the bottom end face of the fixed box.

Preferably, the wheel bar is inside the ring gear, and the outer side face of the wheel bar in only one direction is meshed with the inner side face of the ring gear.

Preferably, one side between the sliding plate and the fixing head is needle-shaped, the tip of the fixing head is close to the soft plate, and the tip of the sliding plate is close to the wheel rod.

The invention has the following beneficial effects:

1. according to the invention, the ring teeth can move up and down in the sliding chute through the arrangement of the wheel rod in the ring teeth, so that the ring teeth are meshed with the wheel rod to rotate, the soft plate outside the ring teeth is wound to pull the screen to move upwards, the screen approaches to the bottom end of the air nozzle, the effect of the air flow action of the air nozzle on the screen is increased, the top end of the screen falls into a position where materials are driven by the air flow to enter the material collision upwards, the material deposition at the bottom end of a grinding chamber is avoided, and the powder making rate of the materials is improved.

2. According to the invention, the screen is pulled by the soft plate, the screen moves upwards, so that the degree of influence of air flow of the air nozzle on the top end of the screen is increased, the material can be pushed to the middle part of the screen from the outer side of the screen, the material is impacted on the side surface of the fixed box, and the blade on the outer side of the fixed box enables the material to be collided and crushed, so that the effect of the air flow on the material after agglomeration and crushing is improved, the material after crushing can be completely driven to move by the air flow, and the powder making efficiency of the material is improved.

3. According to the invention, the screen moves upwards, and the screen is in a circular truncated cone shape, so that the side surface of the screen is intersected with the airflow blown out by the air nozzle, the high-speed airflow of the air nozzle can push the material to be crushed and has a certain impact effect on the holes of the screen, the holes of the screen are prevented from being blocked after the airflow of the air nozzle impacts, and meanwhile, the screen intermittently moves upwards due to the pulling effect of the soft plate, so that the influence of the screen on the airflow of the air nozzle is reduced, the screen moves up and down, the large agglomerated materials are favorably released and extruded to the lowest material, and the action effect of the screen is improved.

Drawings

FIG. 1 is a schematic sectional front view of the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1 according to the present invention;

FIG. 3 is an enlarged view of the structure at B in FIG. 1 according to the present invention;

FIG. 4 is a schematic sectional side view of the present invention;

FIG. 5 is a top view of a push plate structure according to the present invention.

In the figure: 1. a grinding chamber; 2. an air nozzle; 3. screening a screen; 4. a fixing box; 5. a wheel lever; 6. a chute; 7. ring teeth; 8. sleeving a column; 9. a slide plate; 10. a square hole; 11. a limiting spring; 12. a soft board; 13. a push plate; 14. a movable post; 15. a return spring; 16. a fixed head; 17. a blade.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, a collision type jet mill comprises a grinding chamber 1, an air nozzle 2 is fixedly connected inside the grinding chamber 1, a screen 3 located below the air nozzle 2 is slidably connected inside the grinding chamber 1, a fixing box 4 is fixedly connected in the middle of the top end of the screen 3, referring to fig. 4, a wheel rod 5 is movably connected to one side of the top end of the grinding chamber 1, a chute 6 located outside the wheel rod 5 is formed in one side of the top end of the grinding chamber 1, the chute 6 is waist-shaped, the width of the chute 6 is the same as the diameter of a ring gear 7, the position of the ring gear 7 relative to the wheel rod 5 can be controlled by the width of the chute 6, the circle center of the ring gear 7 and the circle center of the wheel rod 5 are always on the same straight line, the ring gear 7 is prevented from being deflected by the force of a soft plate 12, the stability of the device is improved, the ring gear 7 located inside the chute 6 is engaged with the outside the wheel rod 5, and the other end of the wheel rod 5 is connected with the rod of a turbine type superfine classifier, referring to fig. 2 and 4, a sleeve column 8 located below the sliding chute 6 is fixedly connected inside the grinding chamber 1, a sliding plate 9 is slidably connected to the top end of the sleeve column 8, a square hole 10 is formed in the middle of the sliding plate 9, a limiting spring 11 is fixedly connected to one side of the sliding plate 9, a soft plate 12 is wound on the outer side of the ring gear 7, the other end of the soft plate 12 is connected to both sides of the screen 3, and in fig. 4, the soft plate 12 is in a tight state, referring to fig. 3 and 5, a pushing plate 13 located right below the wheel lever 5 is fixedly connected to one side of the soft plate 12, a movable column 14 is slidably connected to the top end of the pushing plate 13, the length and width of the movable column 14 are the same as those of the square hole 10, so that the movable column 14 can extend out of the top end of the sliding plate 9 through the square hole 10, the movable column 14 pushes the ring gear 7 to move, a return spring 15 is fixedly connected inside the movable column 14, a fixing head 16 located above the pushing plate 13 is fixedly connected to one side of the soft plate 12, the angle fixedly connected with blades 17 such as the circumference of fixed box 4 make blade 17 can blow the middle part conglomeration material of screen cloth 3 to the outside from screen cloth 3 and collide the cutting to reduce the volume and the weight of conglomeration material, make and can be blown by air nozzle 2 by the breakage and drive the removal, carry out subsequent powder process, improve the powder process rate of material itself.

Referring to fig. 1, the shape of the screen 3 and the shape of the fixed box 4 are both circular truncated cone, and the top end surface of the screen 3 is connected with the bottom end surface of the fixed box 4, the shape of the screen 3 is configured so that when the screen 3 is pulled by the soft board 12 to move upwards and approach to the bottom end of the air nozzle 2, the air flow driven by the air nozzle 2 can directly act in the side hole of the screen 3, so that the hole of the screen 3 is impacted by the air flow driven by the air nozzle 2, thereby avoiding the hole of the screen 3 from being blocked, improving the action effect of the screen 3, and the shape of the fixed box 4 is configured so that the agglomerated material blown from the surface of the screen 3 and moving along the side slope of the fixed box 4 can move upwards to perform the subsequent milling process under the continuous action of the air flow after being cut and crushed by the blade 17, so that the side surface of the fixed box 4 has a guiding effect on the crushed material.

Referring to fig. 2, the wheel rod 5 is located inside the ring gear 7, and only one lateral side of the wheel rod 5 is engaged with the inner lateral side of the ring gear 7, and under the condition that the wheel rod 5 is engaged inside the ring gear 7, after the ring gear 7 is pushed by the movable column 14 to move upwards, the ring gear 7 is not engaged with the wheel rod 5, and the ring gear 7 is pulled by the soft plate 12, so that the ring gear 7 rotates to release the soft plate 12, the soft plate 12 and the screen 3 move downwards together, the screen 3 is far away from the bottom end of the air nozzle 2, the screen 3 can intermittently move upwards, the influence of the screen 3 on the air flow of the air nozzle 2 is reduced, the cutting treatment of the blade 17 is performed on the large agglomerated materials on the surface of the screen 3, and the screen 3 moves upwards and downwards, which helps to release the materials extruded to the lowest position by the large agglomerated materials, and the action effect of the screen 3 is improved.

Referring to fig. 2-3, one side between the sliding plate 9 and the fixing head 16 is needle-shaped, the tip of the fixing head 16 is close to the soft board 12, the tip of the sliding plate 9 is close to the wheel rod 5, so that after the fixing head 16 moves upwards along with the soft board 12, the fixing head 16 can push the sliding plate 9 to move in a direction away from the soft board 12, so that the sliding plate 9 can release the movable column 14 through the square hole 10, thereby moving the ring gear 7 upwards, and in the moving process, the fixing head 16 is always at one side of the horizontal line where the soft board 12 is located, so that when the fixing head 16 moves downwards, the limiting spring 11 elastically pushes the sliding plate 9 to recover the initial position, and the device can continuously operate.

Referring to fig. 5, a draw-mark-shaped through hole is formed in the middle of the pushing plate 13, and the pushing plate 13 is slidably connected with the movable column 14 through the through hole, so that the movable column 14 can slide relative to the pushing plate 13, the movable column 14 can elastically push the bottom end of the ring gear 7, and the ring gear 7 moves upwards, so that the movable column 14 can instantly rebound to an initial height through the inside of the square hole 10, the ring gear 7 can instantly move, and the action effect is improved.

The use method (working principle) of the invention is as follows:

when powder is prepared, materials and gas are sprayed in through the air nozzle 2, the wheel rod 5 rotates, the wheel rod 5 is meshed to drive the ring gear 7 to rotate, the ring gear 7 rotates and winds the soft board 12 on the surface, the soft board 12 pulls the pushing board 13 on one side to move upwards, the top end of the movable column 14 above the pushing board 13 is abutted to the bottom end of the sliding board 9, the soft board 12 continuously moves, the movable column 14 pushes the reset spring 15 to compress until the soft board 12 drives the fixing head 16 to move to one side of the sliding board 9, the fixing head 16 pushes the sliding board 9 to move in the direction far away from the soft board 12, the square hole 10 in the middle of the sliding board 9 reaches the position right above the movable column 14, the sliding board 9 releases the movable column 14 through the square hole 10, the movable column 14 pushes the ring gear 7 to move upwards under the elastic action of the reset spring 15, meanwhile, the screen 3 is driven by the soft board 12 to move upwards, the screen 3 moves upwards and is close to the lower part of the air nozzle 2, the agglomerated materials at the top end of the screen 3 are moved to the top end of the middle part of the screen 3 under the action of the air flow blown by the air nozzle 2 and impact the outer side blade 17 of the fixed box 4, so that the agglomerated materials are cut and crushed, the ring gear 7 moves to the upper part of the inner part of the chute 6, the inner part of the ring gear 7 is not meshed with the wheel rod 5, at the moment, the screen 3 pulls the soft plate 12 through the self gravity, the ring gear 7 which is not meshed with the wheel rod 5 is pulled by the soft plate 12 and rotates the soft plate 12 wound above, so that the screen 3 moves downwards, the soft plate 12 drives the pushing plate 13 to move downwards, the top end of the movable column 14 above the pushing plate 13 moves downwards through the square hole 10 in the middle part of the sliding plate 9, the sliding plate 9 returns to the initial state under the elastic action of the limiting spring 11, the soft plate 12 continuously moves downwards until the ring gear 7 is meshed with the wheel rod 5 again, and the steps are repeated again.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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

Claims

1. The utility model provides an clash type fluid energy mill, includes grinding chamber (1), the inside fixedly connected with air nozzle (2) of grinding chamber (1), its characterized in that: the inner sliding connection of the grinding chamber (1) is provided with a screen (3) below the air nozzle (2), the middle part of the top end of the screen (3) is fixedly connected with a fixing box (4), one side of the top end of the grinding chamber (1) is movably connected with a wheel rod (5), one side of the top end of the grinding chamber (1) is provided with a sliding chute (6) outside the wheel rod (5), the outer side of the wheel rod (5) is meshed with a ring gear (7) inside the sliding chute (6), the width of the sliding chute (6) is the same as the diameter of the ring gear (7), the inner fixed connection of the grinding chamber (1) is provided with a sleeve column (8) below the sliding chute (6), the top end of the sleeve column (8) is slidably connected with a sliding plate (9), the middle part of the sliding plate (9) is provided with a square hole (10), one side of the sliding plate (9) is fixedly connected with a limiting spring (11), the outer side of the ring gear (7) is wound with a soft plate (12), and the other end of soft board (12) is connected with the both sides of screen cloth (3), one side fixedly connected with of soft board (12) is located catch plate (13) under wheel pole (5), the top sliding connection of catch plate (13) has activity post (14), the inside fixedly connected with reset spring (15) of activity post (14), one side fixedly connected with of soft board (12) is located fixed head (16) of catch plate (13) top.

2. A colliding jet mill as claimed in claim 1, wherein: the fixed box (4) is fixedly connected with blades (17) at equal angles in the circumferential direction.

3. A colliding jet mill as claimed in claim 1, wherein: the shape of screen cloth (3) and fixed box (4) all is the round platform type, and the bottom face of screen cloth (3) and fixed box (4) is connected.

4. A colliding jet mill as claimed in claim 1, wherein: the wheel rod (5) is arranged inside the ring gear (7), and the outer side face of the wheel rod (5) in only one direction is meshed with the inner side face of the ring gear (7).

5. A colliding jet mill as claimed in claim 1, wherein: one side between the sliding plate (9) and the fixing head (16) is needle-shaped, the tip of the fixing head (16) is close to the soft plate (12), and the tip of the sliding plate (9) is close to the wheel rod (5).