CN111570030A

CN111570030A - Ball mill feeding device

Info

Publication number: CN111570030A
Application number: CN202010536833.5A
Authority: CN
Inventors: 乐腮驼; 宿旭升
Original assignee: Jiangxi Duma Machinery Manufacturing Co ltd
Current assignee: Jiangxi Duma Machinery Manufacturing Co ltd
Priority date: 2020-06-12
Filing date: 2020-06-12
Publication date: 2020-08-25

Abstract

The invention discloses a ball mill feeding device, which relates to the field of ball mills and comprises a ball mill, wherein a ball milling bin opening is formed in one side of the ball mill, a feeding mechanism is arranged on one side of the ball milling bin opening, an air inlet mechanism is formed in one side, away from the ball mill, of the feeding mechanism, a transmission structure is formed in one end of the feeding mechanism, a rotating mechanism is arranged in the feeding mechanism in parallel with the transmission structure, and an outer gear is formed in the outer side of the ball mill. According to the invention, through the arrangement of the transmission shaft, the rotating mechanism, the transmission gear and the inclined scraper, when the ball mill runs, the outer gear on the outer side can drive the first gear to rotate, the first gear can drive the transmission shaft to rotate so as to drive the second gear to rotate, the second gear drives the rotating mechanism to rotate through the transmission gear, the raw materials are pushed into the ball milling bin under the action of the inclined scraper and gravity, and the inclined scraper also drives the raw materials to rotate so that the raw materials can rotationally enter the ball mill.

Description

Ball mill feeding device

Technical Field

The invention relates to the field of ball mills, in particular to a feeding device of a ball mill.

Background

The ball mill is widely used in the production industries of cement, silicate products, novel building materials, refractory materials, chemical fertilizers, black and non-ferrous metal ore dressing, glass ceramics and the like, and is used for dry or wet grinding of various ores and other grindable materials. The ball mill is suitable for grinding various ores and other materials, is widely used in the industries of mineral separation, building materials, chemical industry and the like, and can be divided into a dry type ore grinding mode and a wet type ore grinding mode. The ball mill is composed of a horizontal cylinder, a feeding and discharging hollow shaft, a grinding head and the like, the cylinder is a long cylinder, a grinding body is arranged in the cylinder, the cylinder is made of steel plates, a steel lining plate is fixed with the cylinder, the grinding body is generally steel balls and is arranged in the cylinder according to different diameters and a certain proportion, the grinding body can also be a steel section and is selected according to the granularity of the grinding material, the material is arranged in the cylinder through the hollow shaft at the feeding end of the ball mill, when the ball mill cylinder rotates, the grinding body is attached to the lining plate of the cylinder and is taken away by the cylinder due to inertia and centrifugal force, and when the ball mill cylinder is taken to a certain height, the grinding body is thrown down due to the gravity of the grinding body, and the falling grinding body breaks the material in the cylinder like a throwing body.

Present ball mill can only grind the raw materials within twenty-five millimeter diameters, if the raw materials size causes the ball mill to block up too big easily, present ball mill is inconvenient to be screened the raw materials, secondly the ball mill carries out the ball-milling back to the raw materials, for the convenience arrange the material and need let in the air of capacity as power in to the ball mill through the feed inlet, thereby promote powder discharge ball mill, present ball mill generally only carries out the air entrainment to the ball mill through a set of trachea, because the air current undulant row's that can make the ball mill material process stable inadequately, efficiency is not high, the raw materials when entering into the ball mill, can't keep unanimous rotation with the ball mill inner wall, thereby can cause and produce the friction between ball mill inner wall and.

Disclosure of Invention

The invention aims to: in order to solve the problem that the raw materials are inconvenient to screen, the air inlet is not stable enough, and the raw materials are easy to wear the inner wall of the ball mill, the feeding device of the ball mill is provided.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a ball mill feed arrangement, includes the ball mill, ball-milling door opening has been seted up to one side of ball mill, one side of ball-milling door opening is provided with feed mechanism, feed mechanism keeps away from one side of ball mill and has seted up air inlet mechanism, drive structure has been seted up to feed mechanism's one end, feed mechanism's inside and drive structure parallel arrangement have rotary mechanism, the outer gear has been seted up in the outside of ball mill.

Preferably, the feed inlet has been seted up on feed mechanism's top, feed mechanism's inside is located the below of feed inlet and installs the screen cloth, the both ends of screen cloth all run through feed mechanism's inner wall and extend to feed mechanism's the outside and be provided with the protection box, a set of multiunit spring, multiunit have been seted up to the inside of protection box spring and screen cloth swing joint, a set of the internally mounted of protection box has the cylinder, just the output and the screen cloth welding of cylinder.

Preferably, the mounting panel has been seted up to one side of feed mechanism, just the bottom of mounting panel is provided with the receiver, the fixed pin has been seted up in the outside of receiver, the receiver passes through fixed pin and mounting panel fixed connection, one side of feed mechanism is located receiver, has seted up the discharge tank between the screen cloth.

Preferably, the air inlet has been seted up to one side of air intake mechanism, first filter screen has been seted up to the inside of air inlet, the air distribution plate has been seted up to the inner wall of air intake mechanism, the shape of air distribution plate is the round platform type, just multichannel spiral groove has been seted up to the outer wall of air distribution plate, the second filter screen has been seted up with the junction of air intake mechanism inner wall to the air distribution plate.

Preferably, the outer side of the rotating mechanism is provided with a ball groove, the inner part of the ball groove is connected with a plurality of groups of rolling balls, the rotating mechanism is rotatably connected with the inner wall of the feeding mechanism through the plurality of groups of ball grooves, one side of the outer wall of the rotating mechanism, which is positioned in the ball groove, is provided with a transmission gear, and the inner side of the rotating mechanism is provided with an inclined scraper.

Preferably, the internal connection of transmission structure has the transmission shaft, just the both sides of transmission shaft all run through transmission structure's inner wall and extend to transmission structure's the outside, first gear has been seted up to one side of transmission shaft, the transmission shaft is kept away from one side of first gear and has been seted up the second gear.

Preferably, the second gear penetrates through the outer wall of the feeding mechanism and extends to the inside of the feeding mechanism to be meshed with the transmission gear, the first gear is meshed with the outer gear, and the bottom end of the transmission structure is provided with the supporting frame.

Preferably, a sealing ring is arranged on one side of the ball milling bin opening, the ball milling bin opening is connected with the feeding mechanism in a clamping mode through the sealing ring, a plurality of groups of fixing bolts are arranged on the outer wall of the ball milling bin opening, and the ball milling bin opening is fixedly connected with the feeding mechanism through the plurality of groups of fixing bolts.

Preferably, the inner wall of the air inlet is provided with threads, the air inlet is fixedly connected with the air inlet mechanism through the threads, and the air inlet is communicated with external air blowing equipment.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, through the arranged screen mesh, the protection box, the air cylinder, the spring and the feed inlet, raw materials are firstly put into the feeding mechanism through the feed inlet, the raw materials can fall on the screen mesh firstly, the raw materials meeting requirements can pass through the screen mesh and continue to move downwards, the raw materials not meeting requirements can slide into the containing box along the screen mesh, and part of the raw materials can be clamped on the screen mesh;

2. through the air inlet, the first filter screen, the second filter screen, the air distribution plate and the threaded groove, when the ball mill grinds the raw materials, in order to facilitate discharging, positive air pressure is required to be formed at the position of a feeding hole, an air inlet is communicated with external air blowing equipment to provide sufficient strong air for the ball mill, the strong air firstly passes through a first filter screen to prevent impurities contained in the strong air from entering a feeding device to cause damage to the feeding device, then the strong air can continuously flow along an air distribution plate, a plurality of groups of threaded grooves formed in the surface of the air distribution plate can drive the strong air to rotate and reduce the flow velocity of the strong air, so that the strong air can uniformly penetrate through a second filter screen and continuously forwards reach the inside of the ball mill to form uniform spiral air, and the positive air pressure in the feeding device is kept stable, thereby the discharging process of the ball mill is kept stable, and the problem of unstable air intake is effectively solved;

3. through the transmission shaft that sets up, first gear, the second gear, rotary mechanism, drive gear and oblique scraper blade, when the ball mill operation, the outer gear in the outside can drive first gear revolve, first gear can drive the transmission shaft and rotate, thereby drive second gear revolve, the second gear drives rotary mechanism through drive gear and rotates, back in the raw materials reachs rotary mechanism that has screened, it enters into the ball-milling storehouse mouth to push the raw materials under the effect of oblique scraper blade and gravity, and oblique scraper blade also drives the raw materials and rotates, make the raw materials can the pivoted enter into the ball mill in, reduce the wearing and tearing of raw materials to the ball mill inner wall, the life of ball mill is prolonged, the problem that the raw materials easily produced wearing and tearing to the ball mill inner wall has effectively been solved.

Drawings

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

FIG. 2 is a schematic view of the internal structure of the feeding mechanism of the present invention;

FIG. 3 is a schematic diagram of a screen panel according to the present invention;

FIG. 4 is a schematic view of a screen mounting arrangement of the present invention;

FIG. 5 is a schematic structural view of the air distributing plate of the present invention;

fig. 6 is a schematic view of the transmission structure of the present invention.

In the figure: 1. a ball mill; 101. an outer gear; 102. a ball milling bin opening; 103. a seal ring; 2. a feeding mechanism; 201. a feed inlet; 202. screening a screen; 203. mounting a plate; 204. a storage box; 205. a fixing pin; 206. a protection box; 207. a cylinder; 208. a spring; 3. an air intake mechanism; 301. an air inlet; 302. a first filter screen; 303. a second filter screen; 304. a wind distribution plate; 305. a spiral groove; 4. a transmission structure; 401. a drive shaft; 402. a first gear; 403. a second gear; 404. a support frame; 5. fixing the bolt; 6. a rotation mechanism; 601. a ball groove; 602. rolling a ball; 603. a transmission gear; 604. an inclined scraper.

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. 1-6, a feeding device for a ball mill includes a ball mill 1, a ball mill bin 102 is disposed on one side of the ball mill 1, a feeding mechanism 2 is disposed on one side of the ball mill bin 102, an air inlet mechanism 3 is disposed on one side of the feeding mechanism 2 away from the ball mill 1, a transmission structure 4 is disposed at one end of the feeding mechanism 2, a rotating mechanism 6 is disposed inside the feeding mechanism 2 and parallel to the transmission structure 4, and an external gear 101 is disposed outside the ball mill 1.

Please refer to fig. 1 and fig. 2, a feed inlet 201 is formed at the top end of the feeding mechanism 2, a screen 202 is installed inside the feeding mechanism 2 below the feed inlet 201, two ends of the screen 202 both penetrate through the inner wall of the feeding mechanism 2 and extend to the outer side of the feeding mechanism 2 to be provided with a protection box 206, a plurality of sets of springs 208 are formed inside the protection box 206, the plurality of sets of springs 208 are movably connected with the screen 202, an air cylinder 207 is installed inside the protection box 206, the output end of the air cylinder 207 is welded with the screen 202, and the screen 202 can screen raw materials, so that the raw materials meeting the requirements enter the rotating mechanism 6 and do not enter the storage box 204.

Please refer to fig. 1 and fig. 2, a mounting plate 203 is disposed on one side of the feeding mechanism 2, a receiving box 204 is disposed at a bottom end of the mounting plate 203, a fixing pin 205 is disposed on an outer side of the receiving box 204, the receiving box 204 is fixedly connected to the mounting plate 203 through the fixing pin 205, and a discharge slot is disposed between the receiving box 204 and the screen 202 on one side of the feeding mechanism 2, so that the receiving box 204 can be conveniently detached, and non-compliant raw materials can be conveniently collected.

Please refer to fig. 1, fig. 2 and fig. 5, an air inlet 301 is disposed at one side of the air inlet mechanism 3, a first filter screen 302 is disposed inside the air inlet 301, an air distribution plate 304 is disposed on an inner wall of the air inlet mechanism 3, the air distribution plate 304 is shaped like a circular truncated cone, a plurality of spiral grooves 305 are disposed on an outer wall of the air distribution plate 304, a second filter screen 303 is disposed at a joint of the air distribution plate 304 and the inner wall of the air inlet mechanism 3, and the strong wind can be decomposed into a plurality of strands of weak wind by the air distribution plate 304, so that the weak wind can uniformly enter the ball mill 1.

Please refer to fig. 4, a ball groove 601 is formed on the outer side of the rotating mechanism 6, a plurality of rolling balls 602 are connected inside the ball groove 601, the rotating mechanism 6 is rotatably connected with the inner wall of the feeding mechanism 2 through the plurality of ball grooves 601, a transmission gear 603 is formed on one side of the outer wall of the rotating mechanism 6, which is located on the ball groove 601, an inclined scraper 604 is formed on the inner side of the rotating mechanism 6, the raw material can be transported through the rotating mechanism 6, and the raw material can rotate, so that the angular velocity difference between the raw material and the inner wall of the ball mill is.

Please refer to fig. 6, a transmission shaft 401 is connected inside the transmission structure 4, two sides of the transmission shaft 401 both penetrate through the inner wall of the transmission structure 4 and extend to the outer side of the transmission structure 4, a first gear 402 is disposed on one side of the transmission shaft 401, a second gear 403 is disposed on one side of the transmission shaft 401 away from the first gear 402, and the transmission shaft 401 can drive the rotation mechanism 6 and the ball mill 1 to maintain the same rotation speed.

Please refer to fig. 5, the second gear 403 penetrates through the outer wall of the feeding mechanism 2 and extends into the feeding mechanism 2 to engage with the transmission gear 603, the first gear 402 engages with the outer gear 101, and the bottom end of the transmission structure 4 is provided with a supporting frame 404.

Please refer to fig. 5, a sealing ring 103 is disposed on one side of the ball milling bin opening 102, the ball milling bin opening 102 is connected to the feeding mechanism 2 by the sealing ring 103, a plurality of fixing bolts 5 are disposed on the outer wall of the ball milling bin opening 102, and the ball milling bin opening 102 is fixedly connected to the feeding mechanism 2 by the plurality of fixing bolts 5.

Please refer to fig. 2, the inner wall of the air inlet 301 is threaded, the air inlet 301 is fixedly connected to the air inlet mechanism 3 through the threads, the air inlet 301 is connected to the external blowing device, the air inlet 301 can be detached, and the air inlet mechanism 3 can be cleaned and maintained conveniently.

The working principle is as follows: the device is connected with the external power supply to enable the device to normally operate, firstly, raw materials are put into the feeding mechanism 2 through the feeding hole 201, the raw materials firstly fall on the screen 202, the raw materials meeting requirements pass through the screen 202 to continuously move downwards, the raw materials not meeting requirements slide into the storage box 204 along the screen 202, and part of the raw materials are clamped on the screen 202, at the moment, the air cylinder 207 is started, the output end of the air cylinder 207 drives the screen 202 to move back and forth in the feeding hole 201, so that the clamped raw materials are separated from the eyelets of the screen 202, the raw materials can slide into the storage box 204 to prevent the screen 202 from being blocked, the use efficiency is improved, after the storage box 204 is filled with the raw materials, the fixing pin 205 is taken out to separate the storage box 204 from the mounting plate 203, the raw materials in the storage box 204 are collected to avoid waste, the economic benefit is improved, when the ball mill 1 operates, the outer gear 101, the first gear 402 can drive the transmission shaft 401 to rotate, thereby driving the second gear 403 to rotate, the second gear 403 drives the rotating mechanism 6 to rotate through the transmission gear 603, after the screened raw material reaches the rotating mechanism 6, the raw material is pushed to enter the ball milling bin mouth 102 under the action of the inclined scraper 604 and the gravity, and the inclined scraper 604 also drives the raw material to rotate, so that the raw material can rotatably enter the ball mill 1, the abrasion of the raw material on the inner wall of the ball mill 1 is reduced, the service life of the ball mill 1 is prolonged, when the ball mill 1 grinds the raw material, in order to facilitate material discharge, a positive air pressure is required to be formed at the position of the feed inlet 201, the air inlet 301 is communicated with external air blowing equipment, sufficient strong air is provided for the ball mill 1, the strong air firstly passes through the first filter screen 302, impurities contained in the strong air are prevented from entering the feed device to cause damage to the feed device, and then the strong, the multiple sets of spiral grooves 305 formed in the surface of the wind distribution plate 304 can drive the strong wind to rotate and reduce the flow rate of the strong wind, so that the strong wind can uniformly pass through the second filter screen 303 and continuously reach the inside of the ball mill 1, the strong wind forms uniform spiral wind, and the positive air pressure in the feeding device is kept stable.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention 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.

Claims

1. The utility model provides a ball mill feed arrangement, includes ball mill (1), its characterized in that: ball-milling bin mouth (102) have been seted up to one side of ball mill (1), one side of ball-milling bin mouth (102) is provided with feed mechanism (2), feed mechanism (2) are kept away from one side of ball mill (1) and have been seted up air intake mechanism (3), drive structure (4) have been seted up to the one end of feed mechanism (2), the inside and the drive structure (4) parallel arrangement of feed mechanism (2) have rotary mechanism (6), outer gear (101) have been seted up in the outside of ball mill (1).

2. A ball mill feed arrangement according to claim 1, characterized in that: feed inlet (201) have been seted up on the top of feed mechanism (2), screen cloth (202) are installed to the inside below that is located feed inlet (201) of feed mechanism (2), the both ends of screen cloth (202) all run through the inner wall of feed mechanism (2) and extend to the outside of feed mechanism (2) and be provided with protection box (206), and are a set of multiunit spring (208), multiunit have been seted up to the inside of protection box (206) spring (208) and screen cloth (202) swing joint, and are a set of the internally mounted of protection box (206) has cylinder (207), just the output and the screen cloth (202) welding of cylinder (207).

3. A ball mill feed arrangement according to claim 2, characterized in that: mounting panel (203) have been seted up to one side of feed mechanism (2), just the bottom of mounting panel (203) is provided with receiver (204), fixed pin (205) have been seted up in the outside of receiver (204), receiver (204) are through fixed pin (205) and mounting panel (203) fixed connection, one side of feed mechanism (2) is located receiver (204), screen cloth (202) between seted up the discharge groove.

4. A ball mill feed arrangement according to claim 1, characterized in that: air inlet (301) have been seted up to one side of air intake mechanism (3), first filter screen (302) have been seted up to the inside of air inlet (301), branch aerofoil (304) have been seted up to the inner wall of air intake mechanism (3), the shape of dividing aerofoil (304) is the round platform type, just multichannel spiral groove (305) have been seted up to the outer wall of branch aerofoil (304), divide aerofoil (304) and the junction of air intake mechanism (3) inner wall to seted up second filter screen (303).

5. A ball mill feed arrangement according to claim 1, characterized in that: ball groove (601) have been seted up in rotary mechanism's (6) the outside, the internal connection of ball groove (601) has multiunit spin (602), rotary mechanism (6) are connected with the inner wall rotation of feed mechanism (2) through multiunit ball groove (601), drive gear (603) have been seted up to one side that rotary mechanism's (6) outer wall is located ball groove (601), inclined scraper blade (604) have been seted up to rotary mechanism's (6) inboard.

6. A ball mill feed arrangement according to claim 5, characterized in that: the utility model discloses a gear transmission, including transmission structure (4), the internal connection of transmission structure (4) has transmission shaft (401), just the both sides of transmission shaft (401) all run through the inner wall of transmission structure (4) and extend to the outside of transmission structure (4), first gear (402) have been seted up to one side of transmission shaft (401), second gear (403) have been seted up to one side that first gear (402) were kept away from in transmission shaft (401).

7. A ball mill feed arrangement according to claim 6, characterized in that: the second gear (403) penetrates through the outer wall of the feeding mechanism (2) and extends to the inside of the feeding mechanism (2) to be meshed with the transmission gear (603), the first gear (402) is meshed with the outer gear (101), and the bottom end of the transmission structure (4) is provided with a support frame (404).

8. A ball mill feed arrangement according to claim 1, characterized in that: a sealing ring (103) is arranged on one side of the ball milling bin opening (102), the ball milling bin opening (102) is connected with the feeding mechanism (2) in a clamping mode through the sealing ring (103), a plurality of groups of fixing bolts (5) are arranged on the outer wall of the ball milling bin opening (102), and the ball milling bin opening (102) is fixedly connected with the feeding mechanism (2) through the plurality of groups of fixing bolts (5).

9. A ball mill feed arrangement according to claim 4, characterized in that: the inner wall of the air inlet (301) is provided with threads, the air inlet (301) is fixedly connected with the air inlet mechanism (3) through the threads, and the air inlet (301) is communicated with external air blowing equipment.