CN209934854U

CN209934854U - Turbulent flow strong impact mill

Info

Publication number: CN209934854U
Application number: CN201822125873.1U
Authority: CN
Inventors: 曹志国
Original assignee: Sichuan Giant Powder Equipment Co Ltd
Current assignee: Sichuan Giant Powder Equipment Co Ltd
Priority date: 2018-12-18
Filing date: 2018-12-18
Publication date: 2020-01-14
Anticipated expiration: 2028-12-18

Abstract

The utility model discloses a powerful impact mill of vortex belongs to powder equipment technical field. The lining plates are combined into a polygon, the teeth of the lining plates are distributed on the polygon, and the whole crushing cavity is changed from the original circular arc surface into a plurality of planes to form a polygonal crushing cavity. This vortex effect of smashing the cavity has stopped effectively that the powder material is rotatory in smashing the cavity the inside along with strikeing the dish together, and the powder material is constantly bounce-back making a round trip between strikeing tup and welt, has increased the powder material and has strikeed the probability of colliding of tup and welt, has increased the collision probability between collision dynamics and the powder simultaneously. The crushing efficiency can be greatly improved.

Description

Turbulent flow strong impact mill

Technical Field

The utility model relates to a powder equipment, in particular to superfine powder kibbling impact mill.

Background

The existing impact mill has a structure as shown in the attached figures 1 and 2 of the specification, and lining plates 5 are uniformly arranged on the circumference of a main machine shell 1 to form a circular crushing cavity. The impact disk 7 provided with the eccentric impact hammer 6 rotates at a high speed, and powder materials are crushed by impact collision of the eccentric impact hammer 6 and shearing between the eccentric impact hammer 6 and the lining plate 5. With the existing structure, once the powder material enters the circular crushing cavity, under the action of the rotary impact disc 7 and the eccentric impact hammer head 6, the powder material can do rotary motion along the inner wall of the circular crushing cavity after being impacted. (as shown in figure 2) after the powder material is impacted by the impact force F1 of the eccentric impact hammer head 6, the powder material can collide against the lining plate 5 which is circularly distributed and is reflected to the direction b, the powder material can use the inner wall of the circular lining plate as a track and rotate in the same direction under the rotation action of the impact disc, the relative speed of the powder material and the eccentric hammer head 6 is reduced, the collision probability of the same eccentric impact hammer head 6 and the lining plate 5 is reduced, the impact form is changed from ideal collision to rear-end collision, and the impact force is greatly reduced. Because the powder material does rotary motion in circular crushing cavity inside, not only smash inefficiency, smash the temperature of cavity and promote by a wide margin, aggravated the wearing and tearing of welt 5 moreover. Therefore, there is an urgent need for a new impact mill to improve the pulverizing efficiency.

The utility model has the following contents:

the utility model discloses an aim at reduces the rotation of powder material in crushing cavity the inside through changing the powder granule with the direction of launching (passing through the vortex promptly) after 22 collisions of welt tooth, increases powder material and the collision probability of assaulting tup and welt, increases the impact force degree to reach and improve crushing efficiency, reduce power consumption, reduce the purpose of welt wearing and tearing. Meanwhile, the manufacturing is convenient, and the use and the maintenance are convenient.

The technical scheme of the utility model is that:

a turbulent flow powerful impact mill comprises a frame, a main machine, a grading wheel and the like, and is characterized in that a main machine shell 16 of a new impact mill is arranged on a frame 15 of the new impact mill and is driven by a triangular belt, and a main machine shaft system 17 of the utility model further drives an impact disc 25 of the new impact mill, an impact hammer head 6 and a rolling hammer head 24 to rotate at a high speed; the lower part of the main machine shell 16 of the new impact mill is provided with an air inlet and an air door 34, and the middle upper part is provided with a material blocking ring 18; air enters the main machine shell 16 of the new impact mill through an air door 34 along a hollow arrow, and uniformly enters a crushing cavity from gaps among the excircle of an impact disc, a lining plate and lining plate teeth through a channel between a material blocking ring 18 and the impact disc 25 of the new impact mill; the lining plate 21 of the new impact mill and the lining plate teeth 22 can be made into an integral structure of a material, or the lining plate teeth 22 can be made of high-hardness hard alloy and then welded with the lining plate 21 of the new impact mill into a whole (as shown in figures 13 and 14); a lining plate 21 of the new impact mill is assembled on a lining plate integration plate 20 by a plurality of pieces of integration through bolts (as shown in figure 9); a lining board integration plate mounting seat 19 (as shown in figure 10) is arranged on the inner circle of the upper part of a main machine shell 16 of the new impact mill, and a polygonal crushing cavity (as shown in figure 9) is formed by assembling a lining board integration plate 20 and the lining board integration plate mounting seat 19 through bolts; the shell of the main machine shell 16 of the new impact mill is also suitable for water cooling treatment, and a water cooling jacket is conveniently arranged to cool the shell of the equipment; second impact hammer head 23 mounting grooves are uniformly distributed on the circumference of the upper end surface of an impact disc 25 of the new impact mill (as shown in fig. 11), the groove width is in close fit with the width of the second impact hammer head 23, the second impact hammer head 23 is tightly assembled with the impact disc 25 of the new impact mill through bolts, and material rolling hammer heads 24 close to the center of the disc are symmetrically arranged on the impact disc 25 of the new impact mill and are tightly connected with the impact disc 25 of the new impact mill through bolts;

the classification part consists of a classifier shell 26 of the new impact mill, a classifier inner cylinder 27 of the new impact mill, a classification wheel 28 of the new impact mill, a classification machine head 29 of the new impact mill, a classifier motor 30 of the new impact mill and a classifier shaft system 31 of the new impact mill. Wherein, the lower end of the classifier shell is provided with a feed inlet, and the feed inlet consists of a feed inlet outer tube 32 and a feed inlet inner tube 33.

When the utility model works, the powder raw material is sucked into the annular channel between the classifier shell 26 of the new impact mill and the classifier inner cylinder 27 of the new impact mill along the solid arrow through the feeding inner tube 33, the annular channel is provided with ascending air flow from the polygonal crushing cavity, thicker particles in the powder raw material directly fall on the second impact hammer 23 to be crushed by impact, thinner particles, because the mass is small, the powder can be driven by the air flow to rise along the annular channel and enter the grading area between the inner wall of the inner cylinder 27 of the classifier of the new impact mill and the periphery of the grading wheel 28 of the new impact mill along the arrow direction, and because the grading wheel 28 of the new impact mill is driven by the motor 30 of the classifier of the new impact mill to rotate at a high speed, the powder finished product can be sucked into the gap between the blades of the grading wheel 28 of the new impact mill by the air flow and is discharged through the head 29 of the classifier of the new impact mill by the grading wheel 28 of the new impact mill. The particles larger than the finished powder are thrown to the edge of the inner wall of the inner cylinder 27 of the classifier of the new impact mill by the classifying wheel 28 of the new impact mill, fall onto the impact disc 25 of the new impact mill along the inner wall of the inner cylinder 27 of the classifier of the new impact mill, continue to be impacted by the rolling hammer head 24 and the second impact hammer head 23, are then brought into the annular channel of the shell 26 of the classifier of the new impact mill and the inner cylinder 28 of the classifier of the new impact mill by the ascending air flow, and then enter a classifying area, and the process is circulated. The size of the finished powder product can be adjusted by adjusting the rotating speed of the classifying wheel 28 of the new impact mill through the frequency converter, if the particles of the finished powder product are small, the rotating speed of the classifying wheel 28 of the new impact mill is increased, otherwise, the rotating speed of the classifying wheel 28 of the new impact mill is reduced.

The mounting groove on the impact disc 25 of new impact mill has born the second among the rotatory process and has strikeed tup 23 and roll the shearing force of expecting tup 27, has avoided effectively that connecting bolt bears this shearing force and has been strikeed tup 23 and roll expecting tup 24 and drop by the second after the shear fracture, causes the risk of machine damage. Because the impact disk 25 of the new impact mill rotates at a high speed, the relative speed difference between the impact disk 25 and the powder material is generated, so that the root part of the end surface of the second impact hammer 23 near the center of the impact disk 25 of the new impact mill is excessively abraded at the joint part of the impact disk 25 of the new impact mill. Therefore, the material rolling hammer head 24 is particularly arranged to roll the powder material, so that the relative speed of the powder material and the plane on the impact disc is reduced. (see fig. 9), the above constitutes the main machine part of the turbulent flow strong impact mill. It features that the structure and crushing principle of existing impact mill are completely reversed. (as in fig. 9) polygonal crushing cavity is its biggest utility model, receives the impact force F of second impact tup 23 when the powder material, hits polygonal crushing cavity to along a to launching, can continue to strike 23 secondary impacts with rotatory second impact tup this moment. The polygonal crushing cavity changes the ejection direction of the powder materials after impact collision, plays a role of turbulence, and avoids the rotation of powder particles along the inner wall of the crushing cavity along with the impact disc. The hammer head rotating at a high speed is used for impacting powder particles which are relatively static or reversely move, and the impact force degree is far greater than the impact force of the existing round crushing cavity impact hammer head to follow the impact force of powder materials rotating in the same direction. Meanwhile, powder materials rebounded by the polygonal crushing cavity can collide with materials impacted by the hammer head, so that the powder materials have partial characteristics of an airflow mill. Utilize powder raw materials to collide each other promptly, reach crushing effect and reduce equipment wearing and tearing, can realize more mellow and full granule appearance simultaneously. And because the new impact mill has large impact force on the powder material, the collision probability of the powder particles is high, the retention time of the powder material in the crushing cavity is short, and in addition, no powder material does not rotate in the polygonal crushing cavity, the temperature rise of the equipment is lower than that of the existing impact mill. Meanwhile, through special design of the second impact hammer 23, the impact disc 25 of the new impact mill and other parts, the failure rate of the new impact mill is low, and the new impact mill is firmer and more durable. The main machine shell 16 of the new impact mill does not need to be provided with the lining plate 20 of the new impact mill through a perforation on the wall, so that the closed-loop circulating crushing system is suitable for closed-loop circulating crushing systems with higher sealing requirements.

The utility model discloses a powerful impact mill of vortex is through at artificial graphite, petroleum coke, lithium electricity just, practical application in the negative electrode material trade, same energy consumption, and output promotes more than 25% than existing impact mill, and powder off-the-shelf particle morphology has all more had impact mill to have the advantage moreover. Can completely achieve the purpose of the utility model.

Drawings

FIG. 1 is a general assembly diagram of a prior impact mill; FIG. 2 is a force-bearing schematic diagram of powder particles in a circular pulverizing chamber in the prior art; FIG. 3 is a diagram of a main housing of a prior art impact mill; FIG. 4 is a schematic view of an impact disk of a prior art impact grinder; FIG. 5 is a cross-sectional view of a liner plate of a prior impact mill; FIG. 6 is a diagram of an eccentric hammer head of an existing impact mill; FIG. 7 is a welding view of a feed inlet and a classifier housing of a prior impact mill; FIG. 8 is a general assembly diagram of a new impact mill, and FIG. 9 is a force principle diagram of powder particles of the new impact mill in a polygonal crushing cavity; FIG. 10 is a view of the main housing of the new impact mill; FIG. 11 is a drawing of the impact disk structure of the new impact mill; FIG. 12 is a view of a liner panel integration plate; FIG. 13 is a cross-sectional view of the backing plate teeth; FIG. 14 is a view of the teeth welding of the backing plate to the backing plate; FIG. 15 is a drawing of an impact hammer head; FIG. 16 is an installation view of the inner and outer feedwell tubes. In the figure, 1 is a frame, 2 is a main machine shell, 3 is a main machine shafting, 4 is a material blocking cone, 5 is a lining plate, 6 is an impact hammer, 7 is an impact disc, 8 is a grader shell, 9 is a grader inner cylinder, 10 is a grading wheel, 11 is a branch machine head, 12 is a grading motor, 13 is a grader shafting, 14 is a main machine feeding hole, and 15 is a main machine air inlet valve; 15 is a frame of the new impact mill, 16 is a main machine shell of the new impact mill, 17 is a main machine shafting of the new impact mill, 18 is a material blocking circular ring, 19 is a lining board integrated board mounting seat, 20 is a lining board integrated board, 21 is a lining board of the new impact mill, 22 is a lining board tooth, 23 is a second impact hammer, 24 is a material rolling hammer, 25 is an impact disc of the new impact mill, 26 is a grader shell of the new impact mill, 27 is a grader inner cylinder of the new impact mill, 28 is a grading wheel of the new impact mill, 29 is a grader head of the new impact mill, 30 is a grader motor of the new impact mill, 31 is a grader shafting of the new impact mill, 32 is a feed inlet outer pipe, 33 is a feed inlet inner pipe, and 34.

Detailed Description

The embodiment of the utility model is shown in the attached drawings of the specification. The main machine shell 16 of the new impact mill is arranged on the frame 15 of the new impact mill, and the main machine shafting 17 of the utility model is driven by a triangular belt to further drive the impact disc 25 of the new impact mill, the impact hammer head 6 and the material rolling hammer head 24 to do high-speed rotation movement; the lower part of the main machine shell 16 of the new impact mill is provided with an air inlet and an air door 34, and the middle upper part is provided with a material blocking ring 18; air enters the main machine shell 16 of the new impact mill through an air door 34 along a hollow arrow, and uniformly enters a polygonal crushing cavity from gaps among the excircle of an impact disc, a lining plate and lining plate teeth through a channel between a material blocking ring 18 and the impact disc 25 of the new impact mill; the lining plate 21 of the new impact mill and the lining plate teeth 22 can be made into an integral structure of a material, or the lining plate teeth 22 can be made of high-hardness hard alloy and then welded with the lining plate 21 of the new impact mill into a whole (as shown in figures 13 and 14); a lining plate 21 of the new impact mill is assembled on a lining plate integration plate 20 by a plurality of pieces of integration through bolts (as shown in figure 9); a lining board integration plate mounting seat 19 (as shown in figure 10) is arranged on the inner circle of the upper part of a main machine shell 16 of the new impact mill, and a polygonal crushing cavity (as shown in figure 9) is formed by assembling a lining board integration plate 20 and the lining board integration plate mounting seat 19 through bolts; the main machine shell 16 of the new impact mill does not need to be provided with the lining plate 20 of the new impact mill through a perforation on the wall, so that the closed-loop circulating crushing system is suitable for closed-loop circulating crushing systems with higher sealing requirements; the shell of the main machine shell 16 of the new impact mill is also suitable for water cooling treatment, and a water cooling jacket is conveniently arranged to cool the shell of the equipment; the circumference evenly distributed of the last terminal surface of impact disc 25 of new impact mill has second impact tup 23 mounting groove (as figure 11), and the width of groove is for closely cooperating with the width of second impact tup 23, and second impact tup 23 passes through the bolt and assembles closely with new impact mill's impact disc 25, and the symmetry is equipped with simultaneously on new impact mill's the impact disc 25 and leans on to the central hammer head 24 of rolling of disc to through bolt and new impact mill's impact disc 25 zonulae occludens.

The utility model discloses a charge door outer tube 32 welds as an organic wholely with new grader's casing 26 that strikes the mill, and charge door inner tube 33 adopts the bolt to be connected with the mode of charge door outer tube 32 assembly to convenient the change after long-term use is worn and torn by powder material.

The lining board integration plate 20 in the utility model is assembled with the lining board integration plate mounting seat 19 through bolts to form a polygonal crushing cavity (as shown in figure 9), and the number of polygonal sides is 3-16; preferably a regular polygon, most preferably a regular octagon.

Claims

1. A turbulent flow powerful impact mill comprises a frame, a main machine, a grading wheel and the like, and is characterized in that a main machine shell (16) of a new impact mill is installed on the frame (15) of the new impact mill, and a main machine shaft system (17) is driven by a triangular belt to drive an impact disc (25), an impact hammer head (6) and a rolling hammer head (24) of the new impact mill to rotate at a high speed; the lower part of a main machine shell (16) of the new impact mill is provided with an air inlet and an air door (34), and the middle upper part is provided with a material blocking ring (18); air enters the interior of a main machine shell (16) of the new impact mill through an air door (34) along a hollow arrow, and uniformly enters a crushing cavity from gaps among the excircle of an impact disc, a lining plate and lining plate teeth through a channel between a material blocking ring (18) and the impact disc (25) of the new impact mill; the lining plate (21) of the new impact mill can be made into an integral structure of a material together with the lining plate teeth (22), or the lining plate teeth (22) can be made of high-hardness hard alloy and then welded with the lining plate (21) of the new impact mill into a whole; a lining plate (21) of the new impact mill is assembled on a lining plate integration plate (20) by a plurality of integration through bolts; a lining board integration plate mounting seat (19) is arranged on the inner circle of the upper part of a main machine shell (16) of the new impact mill, and a polygonal crushing cavity is formed by assembling a lining board integration plate (20) with the lining board integration plate mounting seat (19) through bolts; the shell of the main machine shell (16) of the new impact mill is also suitable for water cooling treatment, and a water cooling jacket is conveniently arranged to cool the shell of the equipment; second impact hammer head (23) mounting grooves are uniformly distributed on the circumference of the upper end surface of an impact disc (25) of the new impact mill, the groove width is in close fit with the width of the second impact hammer head (23), the second impact hammer head (23) is tightly assembled with the impact disc (25) of the new impact mill through bolts, and material rolling hammer heads (24) close to the center of the disc are symmetrically arranged on the impact disc (25) of the new impact mill at the same time and are tightly connected with the impact disc (25) of the new impact mill through bolts;

the classification part consists of a classifier shell (26) of the new impact mill, a classifier inner cylinder (27) of the new impact mill, a classification wheel (28) of the new impact mill, a classifier head (29) of the new impact mill, a classifier motor (30) of the new impact mill and a classifier shaft system (31) of the new impact mill; the lower end of the classifier shell is provided with a feed inlet, and the feed inlet consists of a feed inlet outer tube (32) and a feed inlet inner tube (33).

2. The turbulent flow powerful impact mill according to claim 1, characterized in that the outer tube (32) of the feed opening is welded with the classifier shell (26) into a whole, and the inner tube (33) of the feed opening is connected with the outer tube (32) of the feed opening in a manner of assembling by connecting bolts, so as to be convenient to replace after being worn by powder materials after being used for a long time.

3. The turbulent flow powerful impact mill according to claim 1, wherein the lining integrated plate (20) is assembled with the lining integrated plate mounting seat (19) through bolts to form a polygonal crushing cavity which is a regular polygon, and the number of sides of the polygonal crushing cavity is 3-16.

4. The turbulent flow powerful impact mill according to claim 1, characterized in that the lining integrated plate (20) is assembled with the lining integrated plate mounting seat (19) through bolts to form a polygonal crushing cavity in the shape of a regular octagon.