CN220780681U - Special superfine pulverizer for superhard material - Google Patents

Abstract

The utility model provides a superfine pulverizer special for superhard materials, which comprises a classifying chamber, a pulverizing chamber, a transition pipe and a transition chamber, wherein a feeding pipe is arranged at the lower end of the periphery side of the classifying chamber; the two transition pipes are symmetrically arranged below the classifying chamber and are respectively connected with one transition chamber, and the two transition pipes are obliquely arranged and are outwards inclined along the direction from top to bottom; a classification wheel is arranged in the classification chamber, and a discharge pipe is arranged at the top of the classification chamber; two opposite nozzle assemblies are arranged at two ends of the crushing chamber, the crushing chamber is communicated with the transition chamber through the nozzle assemblies, and a return pipe connected with the classifying chamber is further arranged at the top of the crushing chamber. The grinding chamber can keep the needle-shaped structure of the grinding material to the greatest extent, and ensure the performance of the product; and through the arrangement of a plurality of classifying wheels, the fineness of the product is ensured and the yield is ensured.

Description

Special superfine pulverizer for superhard material

Technical Field

The utility model relates to the technical field of superfine crushers, in particular to a special superfine crusher for superhard materials.

Background

The traditional superfine pulverizer can generate vortex airflow at a certain position when ascending materials and descending materials are on the same vertical plane, and repeatedly collide to form a spherical or spheroid-like structure. However, for superhard materials with the mode hardness of more than 9 and abrasive materials such as corundum, silicon carbide, tungsten carbide, diamond and the like, the components of the superhard materials are in a needle-shaped structure, and the cutting force is reduced due to a spherical or spheroid-like structure, so that the product performance is affected. In addition, the air consumption (the air consumption is closely related to the yield) is related to the size of the classifying wheel, the larger the air consumption is, the heavier the classifying wheel is, and the larger the load is, but the motor bearing limits the rotating speed of the classifying wheel, so that the crushing fineness cannot meet the requirement.

Disclosure of Invention

The utility model aims to provide a special superfine pulverizer for superhard materials, which overcomes the defects in the prior art.

In order to solve the technical problems, the technical scheme of the utility model is as follows: the superfine pulverizer special for the superhard materials comprises a classifying chamber, a pulverizing chamber, a transition pipe and a transition chamber, wherein a feeding pipe is arranged at the lower end of the periphery side of the classifying chamber, the pulverizing chamber is arranged below the classifying chamber, two transition chambers are arranged and symmetrically arranged at two ends of the pulverizing chamber; the two transition pipes are symmetrically arranged below the classifying chamber and are respectively connected with one transition chamber, and the two transition pipes are obliquely arranged and are outwards inclined along the direction from top to bottom; the classifying chamber is internally provided with a classifying wheel, the top of the classifying chamber is provided with a discharging pipe, and the classifying wheel is arranged above a feed inlet connected with the feed pipe; two opposite nozzle assemblies are arranged at two ends of the crushing chamber, the crushing chamber is communicated with the transition chamber through the nozzle assemblies, and a return pipe connected with the classifying chamber is further arranged at the top of the crushing chamber.

Furthermore, the special ultra-fine pulverizer for the superhard materials is characterized in that the pulverizing chamber and the transition chamber are three-way pipes, the two ends of the pulverizing chamber are provided with a feeding end connected with the first opening of the transition chamber, and the third opening of the pulverizing chamber is provided with a reflux opening connected with the reflux pipe; the second port of the transition chamber is connected with the transition pipe, and the third port is connected with the air inlet pipe.

Furthermore, in the ultra-fine pulverizer special for the superhard material, flange plates are arranged at the port ends of the pulverizing chamber and the transition chamber, and the transition chamber is in sealing connection with the pulverizing chamber and the transition pipe through the flange plates, the sealing piece and the fastening piece; one end of the transition chamber, which is far away from the crushing chamber, is provided with a cover plate, and the cover plate is connected with a flange plate of the transition chamber through a fastener.

Further, the special superfine pulverizer for superhard materials, wherein the nozzle assembly comprises a feeding nozzle and an air inlet nozzle, the air inlet nozzle is connected with the air inlet pipe, the feeding nozzle is arranged on flange plates at two ends of the pulverizing chamber and is coaxially arranged with the air inlet nozzle, one end, close to the air inlet nozzle, of the feeding nozzle is provided with a conical opening, and one end of the air inlet nozzle is provided with a conical sleeve matched with the conical opening.

Furthermore, in the ultra-fine pulverizer special for the superhard material, the mounting tube is arranged in the center of the cover plate, and the air inlet tube is inserted into the mounting tube and is in threaded connection with the mounting tube; and a gasket is arranged between the air inlet nozzle and the opening end of the inner side of the mounting pipe, and the gasket is sleeved on the outer side of the conical sleeve and is tightly connected with the outer side of the conical sleeve.

Further, the special superfine pulverizer for superhard materials, wherein the outer side of the feeding nozzle is provided with the convex installation part, the installation part is fixed on the flange plate of the crushing chamber through the adjusting plate and the gland, the center of the flange plate of the crushing chamber is provided with the positioning groove, the adjusting plate is embedded in the positioning groove, one end of the gland penetrates through the adjusting plate and is fixedly connected with the flange plate of the crushing chamber, the other end of the gland and the outer side face of the adjusting plate form a U-shaped positioning cavity, the installation part is inserted in the positioning cavity and is matched with the positioning cavity, and a sealing ring is further arranged between the installation part and the adjusting plate.

Furthermore, the special superfine pulverizer for the superhard materials is characterized in that manual ball valves are arranged at the lower end of the transition chamber and the lower end of the transition pipe, and the manual ball valves are connected with an external air source.

Furthermore, in the ultra-fine pulverizer special for the superhard material, an observation window is further arranged at one end, close to the pulverizing chamber, of the outer side of the transition chamber, and a transparent sight glass is arranged on the observation window.

Further, the superfine pulverizer special for the superhard materials is characterized in that a plurality of classifying wheels are arranged and uniformly distributed along the circumference of the center of the classifying chamber, and the classifying wheels are communicated with the discharging pipe through the discharging device.

Furthermore, in the ultra-fine pulverizer special for the superhard material, the classifying wheel is driven to rotate by the motor, the motor is fixed on the lateral wall of the periphery side of the classifying chamber, and the motor is a high-speed variable-frequency motor.

Compared with the prior art, the utility model has the beneficial effects that: through the inclined transition pipe, fine powder rises from the middle, coarse powder returns from two, vortex airflow is not formed between the rising material and the falling material, the needle-shaped structure of the abrasive is reserved to the greatest extent, influence on cutting force of superhard materials and the like is avoided, and the performance of products is ensured; in addition, through the setting of a plurality of classifying wheels, can reduce the size of classifying wheel under the condition of equal output, the motor rotational speed upper limit improves, has guaranteed output when guaranteeing the product fineness.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to the drawings without inventive effort to those skilled in the art.

FIG. 1 is a schematic diagram of a special ultra-fine pulverizer for ultra-hard materials;

FIG. 2 is a schematic diagram of a special ultra-fine pulverizer for ultra-hard materials;

FIG. 3 is a schematic cross-sectional view of the crushing chamber and the transition chamber of the ultra-fine crusher special for ultra-hard materials according to the present utility model;

FIG. 4 is a partial schematic view of the structure of FIG. 3;

in the figure: 1. a classifying chamber; 2. a pulverizing chamber; 3. a transition pipe; 4. a transition chamber; 5. a feed pipe; 6. a classification wheel; 7. a discharge pipe; 8. a return pipe; 9. an air inlet pipe; 10. a cover plate; 11. installing a pipe; 12. a feed nozzle; 121. a tapered opening; 13. an air inlet nozzle; 131. a conical sleeve; 14. a gasket; 15. a mounting part; 16. an adjustment plate; 17. a gland; 18. a positioning cavity; 19. a seal ring; 20. a manual ball valve; 21. an observation window; 22. a discharging device; 23. and a motor.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

As shown in fig. 1-4, the ultra-fine pulverizer special for superhard materials comprises a classifying chamber 1, a pulverizing chamber 2, a transition pipe 3 and a transition chamber 4, wherein a feed pipe 5 is arranged at the lower end of the periphery side of the classifying chamber 1, the pulverizing chamber 2 is arranged below the classifying chamber 1, two transition chambers 4 are arranged and symmetrically arranged at two ends of the pulverizing chamber 2; the two transition pipes 3 are symmetrically arranged below the classifying chamber 1 and are respectively connected with one transition chamber 4, and the two transition pipes 3 are obliquely arranged and outwards inclined along the direction from top to bottom to form an eight shape; a classification wheel 6 is arranged in the classification chamber 1, a discharge pipe 7 is arranged at the top of the classification wheel 6, and the classification wheel 6 is arranged above a feed inlet connected with the feed pipe 5; two opposite nozzle assemblies are arranged at two ends of the crushing chamber 2, the crushing chamber 2 is communicated with the transition chamber 4 through the nozzle assemblies, and a return pipe 8 connected with the classifying chamber 1 is further arranged at the top of the crushing chamber 2. The crushing chamber 2 and the transition chamber 4 are three-way pipes, the structure is simple, the manufacturing is convenient, the through holes at the two ends of the crushing chamber 2 are the first through holes of the feeding end and the transition chamber 4, the third through hole of the crushing chamber 2 is the reflux through hole and the reflux pipe 8, the second through hole of the transition chamber 4 is connected with the transition pipe 3, and the third through hole is connected with the air inlet pipe 9.

The working principle is as follows: the material enters the crushing chamber 2 through the feed pipe 5, and under the action of the nozzle assembly, the high-pressure air flow carries animal material to enter the transition chamber 4 through the transition pipes 3 at the two sides, and then the material is sprayed to the crushing chamber 2 at a high speed through two nozzles, and the material and the high-pressure air flow are relatively sprayed after being mixed, so that the high-speed material is mutually collided and crushed in the crushing area; the crushed materials flow back to the classifying chamber 1 through the return pipe 8 by negative pressure air flow, the crushed particles are subjected to centrifugal force generated by the classifying wheel 6 and centripetal force generated by the air flow viscosity due to the high-speed rotation of the classifying wheel 6, when the centrifugal force of the particles is larger than the centripetal force, namely coarse particles with the classified particle size are returned to the crushing chamber 2 to be continuously crushed, the particles with the classified particle size are fed into the discharger 22 and the discharge pipe 7 through the gaps of the blades of the classifying wheel 6 and then enter the cyclone separator and the pulse dust collector to be collected, and the air flow is discharged by the high-pressure induced draft fan after being filtered by the dust removing filter bag. It can be seen that through the transition pipe 3 that the slope set up, the fine powder rises from the centre, and the coarse powder returns from two, can not form vortex air current between rising material and the decline material, furthest has kept the needle structure of abrasive material, avoids influencing cutting force etc. of superhard material, has guaranteed the performance of product.

In the above structure, as shown in fig. 2-4, flange plates are arranged at the port ends of the crushing chamber 2 and the transition chamber 4, and the transition chamber 4 is in sealing connection with the crushing chamber 2, the transition chamber 4 and the transition pipe 3 through the flange plates, sealing elements and fastening elements, so that air leakage is avoided, and loss is reduced; the one end that crushing room 2 was kept away from to transition room 4 is equipped with apron 10, apron 10 passes through the fastener and is connected with transition room 4 flange board, sealed transition room 4 both ends import, simple structure, easy dismounting.

As shown in fig. 3-4, the nozzle assembly includes a feeding nozzle 12 and an air inlet nozzle 13, the air inlet nozzle 13 is connected with the air inlet pipe 9, the feeding nozzle 12 is disposed on flange plates at two ends of the crushing chamber 2 and is coaxially disposed with the air inlet nozzle 13, one end of the feeding nozzle 12, which is close to the air inlet nozzle 13, is provided with a conical opening 121, the conical opening 121 is reduced from large to small along the airflow flowing direction, and one end of the air inlet nozzle 13 is provided with a conical sleeve 131 matched with the conical opening 121. Compressed air is introduced into the air inlet pipe 9, negative pressure is generated in a gap between the conical opening 121 and the conical sleeve 131, materials in the classifying chamber 1 are influenced by air flow to sequentially enter the transition pipe 3 and the feeding nozzle 12, the air flow is subjected to double acceleration through the air inlet nozzle 13 and the feeding nozzle 12 to form supersonic air flow, the air flow reaches 800m/s, the mixed air flow of the materials is sprayed into the crushing chamber 2, and the nozzle assemblies on two sides are opposite to each other to generate efficient collision and crushing at the middle position of the crushing chamber 2, so that not only conventional materials but also superhard materials can be crushed.

In addition, as shown in fig. 3-4, a mounting pipe 11 is arranged at the center of the cover plate 10, the air inlet pipe 9 is inserted into the mounting pipe 11 and is in threaded connection with the mounting pipe 11, and the position of the air inlet pipe 9 in the mounting pipe 11 is fixed through a nut; a gasket 14 is arranged between the air inlet nozzle 13 and the opening end of the inner side of the mounting tube 11, the air inlet pipe 9, the air inlet nozzle 13 and the gasket 14 are sequentially arranged along the horizontal direction, and the gasket 14 is sleeved on the outer side of the conical sleeve 131 and is tightly connected with the outer side of the conical sleeve 131. The air inlet pipe 9 is rotationally adjusted, so that the outlet end of the air inlet pipe 9 is tightly connected with the air inlet nozzle 13, and the distance between the conical sleeve 131 and the conical opening 121 can be adjusted by adjusting the thickness of the gasket 14, so that the feeding gap, namely the feeding amount, is adjusted, and the maximum crushing efficiency is ensured.

In addition, as shown in fig. 3-4, the outside of the feeding nozzle 12 is provided with a protruding installation part 15, the installation part 15 is fixed on the flange plate of the crushing chamber 2 through an adjusting plate 16 and a gland 17, a positioning groove is arranged at the center of the flange plate of the crushing chamber 2, the adjusting plate 16 is embedded in the positioning groove, one end of the gland 17 penetrates through the adjusting plate 16 and is fixedly connected with the flange plate of the crushing chamber 2, the other end of the gland 17 and the outer side surface of the adjusting plate 16 form a U-shaped positioning cavity 18, the installation part 15 is inserted in the positioning cavity 18 and is matched with the positioning cavity 18 to position the feeding nozzle 12, a sealing ring 19 is further arranged between the installation part 15 and the adjusting plate 16 to seal the joint of the feeding nozzle 12 and the flange plate of the crushing chamber 2. The adjusting plate 16 and the cover plate 17 play a role in fixing and sealing, and the centering and positioning of the feeding nozzle 12 are guaranteed, so that the coaxial arrangement of the feeding nozzle and the air inlet nozzle 13 is guaranteed.

Example 2

Based on the structure of the embodiment 1, as shown in fig. 1, the lower end of the transition chamber 4 and the lower end of the transition pipe 3 are both provided with a manual ball valve 20, and the manual ball valve 20 is connected with an external air source. The manual ball valve 20 plays a role in supplementing air, and some of the superhard materials are heavy materials with high density, so that the material deposition can be avoided through air supplementing, and the crushing effect is ensured.

In order to facilitate observation of the condition of the transition chamber 4, as shown in fig. 1, an observation window 21 is further provided at one end of the outer side of the transition chamber 4, which is close to the crushing chamber 2, and a transparent sight glass is provided on the observation window 21. The observation window 21 can also observe the connection part of the air inlet nozzle 13 and the feeding nozzle 12, thereby facilitating observation and maintenance.

Furthermore, as shown in fig. 1-2, the classifying wheel 6 is provided with a plurality of classifying wheels which are uniformly distributed along the circumference of the center of the classifying chamber 1, and the classifying wheel 6 is communicated with the discharging pipe 7 through the discharging device 22, wherein the connecting structure of the discharging device 22 and the discharging pipe 7 is conventional in the art and is not described in detail herein. The classifying wheel 6 is driven to rotate through the motor 23, the motor 23 is fixed on the side wall of the outer periphery side of the classifying chamber 1, the motor 23 is a high-speed variable-frequency motor, the rotating speed of the motor is controlled through variable frequency, and the rotating speed of the motor can be controlled better, so that the crushing fineness of materials is controlled better. As shown in fig. 2, the present embodiment adopts 3 classifying wheels 6, and by setting a plurality of classifying wheels 6, the size of the classifying wheels can be reduced under the condition of the same yield, the upper limit of the rotation speed of the motor 23 is increased, and the yield is ensured while the fineness of the product is ensured.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (10)

1. A special superfine pulverizer for superhard materials is characterized in that: the device comprises a classifying chamber, a crushing chamber, a transition pipe and a transition chamber, wherein a feeding pipe is arranged at the lower end of the periphery side of the classifying chamber, the crushing chamber is arranged below the classifying chamber, two transition chambers are arranged and symmetrically arranged at two ends of the crushing chamber; the two transition pipes are symmetrically arranged below the classifying chamber and are respectively connected with one transition chamber, and the two transition pipes are obliquely arranged and are outwards inclined along the direction from top to bottom; the classifying chamber is internally provided with a classifying wheel, the top of the classifying chamber is provided with a discharging pipe, and the classifying wheel is arranged above a feed inlet connected with the feed pipe; two opposite nozzle assemblies are arranged at two ends of the crushing chamber, the crushing chamber is communicated with the transition chamber through the nozzle assemblies, and a return pipe connected with the classifying chamber is further arranged at the top of the crushing chamber.

2. The ultra-fine pulverizer for ultra-hard materials according to claim 1, wherein: the crushing chamber and the transition chamber are three-way pipes, the two ends of the crushing chamber are provided with a feeding end which is connected with the first opening of the transition chamber, and the third opening of the crushing chamber is provided with a reflux opening which is connected with the reflux pipe; the second port of the transition chamber is connected with the transition pipe, and the third port is connected with the air inlet pipe.

3. The ultra-fine pulverizer for ultra-hard materials according to claim 2, wherein: the opening ends of the crushing chamber and the transition chamber are respectively provided with a flange plate, and the transition chamber is in sealing connection with the crushing chamber and the transition pipe through the flange plates, the sealing piece and the fastening piece; one end of the transition chamber, which is far away from the crushing chamber, is provided with a cover plate, and the cover plate is connected with a flange plate of the transition chamber through a fastener.

4. A special ultra-fine pulverizer for ultra-hard materials according to claim 1 or 3, wherein: the nozzle assembly comprises a feeding nozzle and an air inlet nozzle, the air inlet nozzle is connected with an air inlet pipe, the feeding nozzle is arranged on flange plates at two ends of the crushing chamber and is arranged coaxially with the air inlet nozzle, one end, close to the air inlet nozzle, of the feeding nozzle is provided with a conical opening, and one end of the air inlet nozzle is provided with a conical sleeve matched with the conical opening.

5. The ultra-fine pulverizer for ultra-hard materials according to claim 4, wherein: the central position of the cover plate positioned at the end part of the transition chamber is provided with an installation tube, and the air inlet pipe is inserted into the installation tube and is in threaded connection with the installation tube; and a gasket is arranged between the air inlet nozzle and the opening end of the inner side of the mounting pipe, and the gasket is sleeved on the outer side of the conical sleeve and is tightly connected with the outer side of the conical sleeve.

6. The ultra-fine pulverizer for ultra-hard materials according to claim 4, wherein: the feeding nozzle outside is equipped with convex installation department, the installation department passes through the regulating plate, the gland is fixed on the flange board of crushing room, the flange board central point of crushing room puts and is equipped with the constant head tank, the regulating plate is inlayed and is located in the constant head tank, regulating plate and crushing room flange board fixed connection are passed to gland one end, and the U type's of formation location chamber is located to the other end and regulating plate lateral surface, the installation department inserts to locate in the location chamber and cooperates with the location chamber, still be equipped with the sealing washer between installation department and the regulating plate.

7. The ultra-fine pulverizer for ultra-hard materials according to claim 1, wherein: the lower end of the transition chamber and the lower end of the transition pipe are respectively provided with a manual ball valve, and the manual ball valves are connected with an external air source.

8. The ultra-fine pulverizer for ultra-hard materials according to claim 1, wherein: and an observation window is further arranged at one end, close to the crushing chamber, of the outer side of the transition chamber, and a transparent sight glass is arranged on the observation window.

9. The ultra-fine pulverizer for ultra-hard materials according to claim 1, wherein: the classifying wheel is provided with a plurality of classifying wheels which are uniformly distributed along the circumference of the center of the classifying chamber, and the classifying wheel is communicated with the discharging pipe through the discharging device.

10. The ultra-fine pulverizer for ultra-hard materials according to claim 9, wherein: the classifying wheel is driven to rotate by a motor, the motor is fixed on the side wall of the outer periphery of the classifying chamber, and the motor is a high-speed variable-frequency motor.