CN220737842U

CN220737842U - Powder reducing mechanism

Info

Publication number: CN220737842U
Application number: CN202322280524.8U
Authority: CN
Inventors: 何冰
Original assignee: Sichuan Mianyang Xingheyi New Material Technology Co ltd
Current assignee: Sichuan Mianyang Xingheyi New Material Technology Co ltd
Priority date: 2023-08-24
Filing date: 2023-08-24
Publication date: 2024-04-09
Anticipated expiration: 2033-08-24

Abstract

The utility model relates to the technical field of powder crushing and discloses a powder crushing device, which comprises a primary crushing cylinder body and a grinding box body, wherein a powder conveying pump is arranged at the bottom of the primary crushing cylinder body, the output end of the powder conveying pump is connected with a feed pipe, the feed pipe is connected with the top of the grinding box body, two crushing rollers are oppositely arranged in the primary crushing cylinder body along the horizontal plane, rotary blades are sleeved on the crushing rollers, and a powder crushing blanking space is formed between the two rotary blades; the inner wall of the grinding box body is fixedly provided with an inner grinding ring, a plurality of grinding rollers are arranged between the outer grinding ring and the inner grinding ring, and the plurality of grinding rollers are uniformly distributed along the circumferential direction of the mounting column. The block materials are crushed before grinding, the block materials are crushed into particle materials, and the particle materials are ground through the grinding box body, so that the particle materials are easily ground into powder, and the grinding quality and the grinding efficiency are improved.

Description

Powder reducing mechanism

Technical Field

The utility model relates to the technical field of powder crushing, in particular to a powder crushing device.

Background

The powder product needs to be crushed in production to raw materials, such as calcium oxide, calcium carbonate, calcium hydroxide and other calcifications, the raw materials are in a block shape, and when the powder is produced, the crushing device is needed to be used for crushing the block-shaped raw materials, because the particle size of the powder needs to be smaller than 1mm, the crushing device basically adopts a grinder to grind the block-shaped raw materials into powder, and after the existing block-shaped raw materials are put into the grinder, the block-shaped raw materials are easy to clamp in a grinding gap of the grinder due to the large volume of the block-shaped raw materials, and meanwhile, the grinding efficiency of the block-shaped raw materials is low, so that the problems of poor grinding quality and poor grinding efficiency occur.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides a powder crushing device which is used for solving the problems in the background art.

The aim of the utility model is realized by the following technical scheme: the utility model provides a powder reducing mechanism, includes first crushing barrel and grinding box, the bottom of first crushing barrel is provided with the powder delivery pump, the output of powder delivery pump is connected with the inlet pipe, the inlet pipe is connected the top of grinding box, set up two crushing rollers relatively along the horizontal plane in the first crushing barrel, the cover is equipped with rotary blade on the crushing roller, two form powder crushing unloading space between the rotary blade;

the grinding device comprises a grinding box body, wherein a mounting column is fixed in the grinding box body, an outer grinding ring is fixedly sleeved on the mounting column, an inner grinding ring is fixedly installed on the inner wall of the grinding box body, a plurality of grinding rollers are arranged between the outer grinding ring and the inner grinding ring, and the grinding rollers are uniformly distributed along the circumferential direction of the mounting column.

The effect of adopting above-mentioned technical scheme is, carry out crushing processing to cubic material earlier before grinding, in the cubic material drops into first crushing barrel earlier, utilize the gravity of material and the negative pressure of powder delivery pump to make the material extrude to crushing roller, rotatory blade on through two crushing rollers is broken to cubic material, the material of qualified size can pass in the crushing unloading space enters into the grinding box, thereby with cubic material breakage into the granule material, the grinding box grinds the condition of granule material, thereby avoid appearing the jamming, grind the granule material into powder simultaneously easily, grinding quality and grinding efficiency have been improved.

In some embodiments, one end of the crushing roller penetrates out of the primary crushing cylinder body to be sleeved with a gear, the gears on the two crushing rollers are meshed with each other, a motor is installed on the outer wall of the primary crushing cylinder body, a driving belt pulley is arranged on an output shaft of the motor, a driven belt pulley is sleeved on one of the crushing roller bodies, and the driving belt pulley is connected with the driven belt pulley through belt transmission.

In some embodiments, the side wall of the primary crushing cylinder is provided with a vibration exciter.

In some embodiments, a screening plate is fixed in the grinding box, screening meshes are arranged on the screening plate, the mounting column, the outer grinding ring and the inner grinding ring are all fixed on the top of the screening plate, and the bottom of the grinding roller contacts the top of the screening plate.

In some embodiments, the top of the mounting column is rotatably provided with a main shaft, the top of the grinding roller is fixed with a 7-shaped connecting rod, one end of the 7-shaped connecting rod, which is far away from the grinding roller, is fixed on the side wall of the main shaft, the top of the grinding box body is provided with a gear motor, and an output shaft of the gear motor is in transmission connection with the main shaft through a coupler.

In some embodiments, the side wall of the grinding box body is provided with a plurality of fans, the fans are uniformly distributed around the circumferential direction of the mounting column, the output end of each fan is connected with a blowing pipe, the blowing pipe extends into the grinding box body, and the air outlet port faces the screening plate.

In some embodiments, the bottom of the grinding box body is provided with a conical discharging box in a communicating manner, the size of the conical discharging box gradually decreases along a direction away from the grinding box body, and the bottom of the conical discharging box is connected with a discharging pipe.

In some embodiments, a screw conveyor is obliquely arranged on one side of the primary crushing cylinder, and the output end of the screw conveyor is connected with the top of the primary crushing cylinder.

The beneficial effects of the utility model are as follows:

the bulk material is crushed before grinding, the bulk material is firstly put into the primary crushing cylinder, the material is extruded to the crushing rollers by utilizing the gravity of the material and the negative pressure of the powder conveying pump, the bulk material is crushed by the rotary blades on the two crushing rollers, and the qualified material can pass through the crushing blanking space to enter the grinding box body, so that the bulk material is crushed into the granular material, the grinding box body grinds the granular material, the situation of jamming is avoided, the granular material is easily ground into powder, and the grinding quality and the grinding efficiency are improved.

Drawings

FIG. 1 is a schematic view showing the overall structure of a powder pulverizing apparatus according to the present utility model;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is a schematic view showing the internal structure of a grinding box in the powder grinding device of the utility model;

FIG. 4 is a partial top view of a primary crushing cylinder in a powder crushing device according to the present utility model;

in the figure, the device comprises a 1-primary crushing cylinder, a 2-grinding box body, a 3-powder conveying pump, a 4-feeding pipe, a 5-crushing roller, a 6-rotating blade, a 7-mounting column, an 8-outer grinding ring, a 9-inner grinding ring, a 10-grinding roller, a 11-gear, a 12-motor, a 13-driving belt pulley, a 14-driven belt pulley, a 15-belt, a 17-main shaft, a 18-screening plate, a 19- '7' -shaped connecting rod, a 20-speed reducing motor, a 21-fan, a 22-blowing pipe, a 23-conical discharging box and a 24-discharging pipe.

Detailed Description

The technical solution of the present utility model will be described in further detail with reference to the accompanying drawings, but the scope of the present utility model is not limited to the following description.

As shown in fig. 1 to 4, a powder crushing device comprises a primary crushing cylinder body 1 and a grinding box body 2, wherein a powder conveying pump 3 is arranged at the bottom of the primary crushing cylinder body 1, the output end of the powder conveying pump 3 is connected with a feed pipe 4, the feed pipe 4 is connected with the top of the grinding box body 2, materials in the primary crushing cylinder body 1 are conveyed into the grinding box body 2 through the powder conveying pump 3, two crushing rollers 5 are oppositely arranged in the primary crushing cylinder body 1 along a horizontal plane, rotary blades 6 are sleeved on the crushing rollers 5, and a powder crushing and discharging space is formed between the two rotary blades 6; the grinding box body 2 is internally fixed with a mounting column 7, an outer grinding ring 8 is fixedly sleeved on the mounting column 7, an inner grinding ring 9 is fixedly arranged on the inner wall of the grinding box body 2, a plurality of grinding rollers 10 are arranged between the outer grinding ring 8 and the inner grinding ring 9, the grinding rollers 10 are uniformly distributed along the circumferential direction of the mounting column 7, one side of the primary grinding cylinder body 1 is obliquely provided with a screw conveyor, the output end of the screw conveyor is connected with the top of the primary grinding cylinder body 1, raw materials are lifted and fed into the primary grinding cylinder body 1 through the screw conveyor, and when the bulk material is large in volume, the raw materials can be transported by adopting a lifting conveyor belt; the grinding machine is characterized in that the bulk materials are crushed before grinding, the bulk materials are thrown into the primary crushing cylinder body 1 through the lifting mechanism, the materials are extruded to the crushing roller 5 by utilizing the gravity of the materials and the negative pressure of the powder conveying pump 3, the bulk materials are crushed through the rotary blades 6 on the two crushing rollers 5, the materials with qualified size can pass through the crushing blanking space and enter the grinding box body 2, so that the bulk materials are crushed into granular materials and then ground, the outer wall of the grinding roller 10 and the inner grinding ring 9, the outer wall of the grinding roller 10 and the outer wall of the outer grinding ring 8 form a grinding space, the granular materials are ground into powder in the grinding space, the granular materials are ground into powder more easily, the problem of blocking cannot occur, and the grinding quality and the grinding efficiency are improved.

In some embodiments, as shown in fig. 1 and fig. 2, one end of a crushing roller 5 penetrates out of a primary crushing cylinder 1 and is sleeved with a gear 11, the gears 11 on the two crushing rollers 5 are meshed with each other, a motor 12 is installed on the outer wall of the primary crushing cylinder 1, a driving belt pulley 13 is arranged on an output shaft of the motor 12, a driven belt pulley 14 is sleeved on one crushing roller 5, the driving belt pulley 13 is connected with the driven belt pulley 14 through a belt 15 in a transmission manner, the driving belt pulley 13 drives the driven belt pulley 14 to rotate through the belt 15, the driven belt pulley 14 drives the corresponding crushing roller 5 to rotate, and the crushing roller 5 drives the other crushing roller 5 to rotate through the meshing of the two gears 11, so that the rotation directions of the two crushing rollers 5 are opposite, and the crushing roller has a blanking effect when crushing materials; the side wall of the primary crushing cylinder body 1 is provided with a vibration exciter, and the primary crushing cylinder body 1 is vibrated by the vibration exciter, so that the block materials are prevented from being blocked in the primary crushing cylinder body 1.

In some embodiments, as shown in fig. 3, a sieving plate 18 is fixed in the grinding box 2, sieving meshes are formed on the sieving plate 18, a mounting column 7, an outer grinding ring 8 and an inner grinding ring 9 are fixed at the top of the sieving plate 18, the bottom of the grinding roller 10 contacts the top of the sieving plate 18, a conical discharging box 23 is communicated with the bottom of the grinding box 2, the size of the conical discharging box 23 is gradually reduced along the direction away from the grinding box 2, a discharging pipe 24 is connected to the bottom of the conical discharging box 23, the ground materials are sieved through the sieving plate 18, the materials with qualified particle sizes fall into the conical discharging box 23 through the sieving plate 18, the fallen materials are converged through the conical discharging box 23, finally the materials are discharged from the discharging pipe 24 or discharged into a next processing station, and the materials with unqualified particle sizes remain on the sieving plate 18 for continuous grinding, so that the particle sizes of the discharged powder meet the production requirements.

In some embodiments, as shown in fig. 1 and 3, a main shaft 17 is rotatably arranged at the top of the mounting column 7, a 7-shaped connecting rod 19 is fixed at the top of the grinding roller 10, one end of the 7-shaped connecting rod 19, which is far away from the grinding roller 10, is fixed on the side wall of the main shaft 17, a gear motor 20 is arranged at the top of the grinding box body 2, an output shaft of the gear motor 20 is in transmission connection with the main shaft 17 through a coupling, the gear motor 20 drives the main shaft 17 to rotate, and the main shaft 17 drives the grinding roller 10 to rotate around the axis of the main shaft 17 through the 7-shaped connecting rod 19, so that materials between the outer grinding ring 8 and the inner grinding ring 9 are ground; preferably, the side wall of the grinding box body 2 is provided with a plurality of fans 21, the fans 21 are uniformly distributed around the circumferential direction of the mounting column 7, the output end of each fan 21 is connected with a blowing pipe 22, the blowing pipe 22 extends into the grinding box body 2, and the air outlet port faces the screening plate 18, so that air blown by the fans 21 enters the grinding box body 2 through the blowing pipe 22 and blows to the screening plate 18, and the air outlet port of the blowing pipe 22 is positioned in the middle of the interval between the outer grinding ring 8 and the inner grinding ring 9, so that the blowing pipe 22 blows materials to two sides, the materials are blown to the grinding space, and the grinding efficiency of the particle materials is accelerated.

In the description of the present utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "one side," "top," "inner," "front," "center," "two ends," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model; and those of ordinary skill in the art will appreciate that the benefits achieved by the present utility model are merely better than those achieved by the current embodiments of the prior art in certain circumstances and are not intended to be the most excellent uses directly in the industry.

The foregoing is merely a preferred embodiment of the utility model, and it is to be understood that the utility model is not limited to the form disclosed herein but is not to be construed as excluding other embodiments, but is capable of numerous other combinations, modifications and environments and is capable of modifications within the scope of the inventive concept, either as taught or as a matter of routine skill or knowledge in the relevant art. And that modifications and variations which do not depart from the spirit and scope of the utility model are intended to be within the scope of the appended claims.

Claims

1. The utility model provides a powder reducing mechanism, its characterized in that includes first crushing barrel (1) and grinds box (2), the bottom of first crushing barrel (1) is provided with powder delivery pump (3), the output of powder delivery pump (3) is connected with inlet pipe (4), inlet pipe (4) are connected grind the top of box (2), set up two crushing roller (5) relatively along the horizontal plane in first crushing barrel (1), the cover is equipped with rotary blade (6) on crushing roller (5), two form powder crushing unloading space between rotary blade (6);

the grinding box body (2) is internally fixed with a mounting column (7), an outer grinding ring (8) is fixedly sleeved on the mounting column (7), an inner grinding ring (9) is fixedly installed on the inner wall of the grinding box body (2), a plurality of grinding rollers (10) are arranged between the outer grinding ring (8) and the inner grinding ring (9), and the grinding rollers (10) are uniformly distributed along the circumferential direction of the mounting column (7).

2. A powder crushing device according to claim 1, characterized in that one end of the crushing roller (5) penetrates out of the primary crushing roller body (1) and is provided with gears (11), the gears (11) on the two crushing rollers (5) are meshed with each other, a motor (12) is installed on the outer wall of the primary crushing roller body (1), an output shaft of the motor (12) is provided with a driving belt pulley (13), one of the crushing rollers (5) is provided with a driven belt pulley (14) in a sleeved mode, and the driving belt pulley (13) is connected with the driven belt pulley (14) in a transmission mode through a belt (15).

3. A powder grinding device according to claim 2, characterized in that the side wall of the primary grinding cylinder (1) is provided with a vibration exciter.

4. A powder crushing device according to claim 1, characterized in that a screening plate (18) is fixed in the grinding box (2), screening meshes are arranged on the screening plate (18), the mounting posts (7), the outer grinding ring (8) and the inner grinding ring (9) are all fixed on the top of the screening plate (18), and the bottom of the grinding roller (10) contacts the top of the screening plate (18).

5. The powder crushing device according to claim 4, wherein a main shaft (17) is rotatably arranged at the top of the mounting column (7), a 7-shaped connecting rod (19) is fixed at the top of the grinding roller (10), one end of the 7-shaped connecting rod (19), which is far away from the grinding roller (10), is fixed on the side wall of the main shaft (17), a gear motor (20) is arranged at the top of the grinding box body (2), and an output shaft of the gear motor (20) is in transmission connection with the main shaft (17) through a coupler.

6. A powder crushing device according to claim 5, characterized in that the side wall of the grinding box body (2) is provided with a plurality of fans (21), the fans (21) are uniformly distributed around the circumferential direction of the mounting column (7), the output end of the fans (21) is connected with a blowing pipe (22), the blowing pipe (22) extends into the grinding box body (2), and the air outlet port faces the screening plate (18).

7. A powder crushing device according to claim 1, characterized in that a conical discharge box (23) is arranged at the bottom of the grinding box (2) in a communicating manner, the size of the conical discharge box (23) gradually decreases along a direction away from the grinding box (2), and a discharge pipe (24) is connected to the bottom of the conical discharge box (23).

8. A powder crushing device according to claim 1, characterized in that a screw conveyor is obliquely arranged on one side of the primary crushing cylinder (1), and the output end of the screw conveyor is connected with the top of the primary crushing cylinder (1).