CN211755574U

CN211755574U - Automatic screening ball mill of high life

Info

Publication number: CN211755574U
Application number: CN202020116801.5U
Authority: CN
Inventors: 王世平; 赵明
Original assignee: Shenzhen Jinzhenglong Technology Co ltd
Current assignee: Shenzhen Jinzhenglong Technology Co ltd
Priority date: 2020-01-17
Filing date: 2020-01-17
Publication date: 2020-10-27
Anticipated expiration: 2030-01-17

Abstract

The utility model relates to a long-life automatic screening ball mill, which comprises a bracket, wherein a grinding part for grinding ash is arranged on the bracket, a feeding component is arranged on one side of the grinding part, and the feeding component comprises a feeding funnel arranged on one side of the grinding part and a feeding component connected between the feeding funnel and the grinding part; the second filter screen that laminates mutually with the feed funnel inner wall is placed to the feed funnel internalization, and the second filter screen sets up to its border department slope downwards from its middle part. Through the setting of second filter screen, and the second filter screen sets up to its border department slope downwards from its middle part, consequently, the staff pours the lime-ash into the second filter screen and makes on, and the lime-ash slides downwards along the inclined plane of second filter screen and sees through the second filter screen, and iron nail etc. in the lime-ash are filtered out, and then prevent that the iron nail in the lime-ash from getting into grinding in the portion to damage grinding portion. Meanwhile, the second filter screen is convenient to disassemble, and workers can clean iron nails and the like on the second filter screen conveniently.

Description

Automatic screening ball mill of high life

Technical Field

The utility model belongs to the technical field of the technique of ball crocus sieve machine and specifically relates to a long-life automatic screening ball mill is related to.

Background

At present, for gold-adhered waste materials generated in the jewelry industry, burnt ash particles are uneven and distributed between 0.1-50 mm, and too large ash has great influence on sampling analysis and subsequent production, so that the burnt ash is generally subjected to ball milling in the industry through a ball mill.

The existing spherical grinding machine comprises a grinding part, a screening part for screening ash is arranged at a discharge port of the grinding part, and a feeding funnel for loading the ash is arranged at a feed port of the grinding part. Since the ash contains hard impurities such as nails which are added into the grinding part together with the ash, the impurities such as nails are likely to damage the grinding part when the grinding part grinds the ash, and thus the feeding hopper needs to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a high life's automatic screening ball mill, its advantage lies in, prevents that iron nails etc. in the lime-ash from getting into in the grinding portion of spherical grinding machine.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the automatic screening ball mill with the long service life comprises a support, wherein a grinding part for grinding ash is arranged on the support, a feeding assembly for conveying the ash to the inner side of the grinding part is arranged on one side of the grinding part, and the feeding assembly comprises a feeding hopper arranged on one side of the grinding part and a feeding assembly connected between the feeding hopper and the grinding part; the feed hopper internalization place with the second filter screen of feed hopper inner wall laminating mutually, the second filter screen sets up downwards from its middle part to its border department slope.

Through adopting above-mentioned scheme, through the setting of second filter screen, and the second filter screen sets up to its border department slope downwards from its middle part, consequently, the staff pours the lime-ash into the second filter screen and makes on, and the lime-ash slides downwards and sees through the second filter screen along the inclined plane of second filter screen, and iron nail etc. in the lime-ash are filtered out, and then prevent that the iron nail in the lime-ash from getting into grinding portion in to damage grinding portion. Meanwhile, the second filter screen is convenient to disassemble, and workers can clean iron nails and the like on the second filter screen conveniently.

Preferably, an annular rib is obliquely and upwards arranged around the second filter screen, and the outer wall of the annular rib is attached to the inner wall of the feeding funnel.

Through adopting above-mentioned scheme, through annular baffle's setting, iron nail in the lime-ash etc. are filtered to the inboard of annular flange and between the outside of second filter screen, and then make things convenient for the clearance of staff to iron nail etc.. Meanwhile, the annular flange enables the second filter screen to be placed more stably.

Preferably, any horizontal cross-section of the feed hopper cavity is circular.

By adopting the scheme, the second filter screen can rotate in the feeding hopper, so that the ash residue on the second filter screen is filtered and discharged to the lower side of the second filter screen.

Preferably, the grinding part comprises an inner barrel body, an outer barrel body and a steel ball, wherein the inner barrel body is horizontally arranged and vertically and rotatably connected to the support, the outer barrel body is sleeved outside the inner barrel body, the steel ball is movably placed inside the inner barrel body, a discharge hole is formed in the side wall of the inner barrel body, a first filter screen for filtering ash and slag is fixedly connected to the discharge hole, and a discharge funnel is connected to the bottom of the outer barrel body; and the support is provided with a driving assembly for driving the inner barrel body to rotate.

Through adopting above-mentioned scheme, the staff passes through drive assembly and drives the interior staving and rotate, and the steel ball in the interior staving carries out the grinding of lime-ash, and the lime-ash filters through first filter screen after grinding, and the lime-ash after first filter screen filters is discharged into outer internally through the discharge gate to discharge through ejection of compact funnel, thereby obtain the lime-ash of corresponding size.

Preferably, the driving assembly comprises a driving rod and a motor, wherein the driving rod is horizontally arranged and vertically connected to the support in a rotating mode, the motor drives the driving rod to rotate, and the driving rod is fixedly connected with the inner barrel body.

By adopting the above scheme, the inner barrel body is rotatably connected on the support through the driving rod, and the motor drives the inner barrel body to rotate through the driving rod.

Preferably, the feeding assembly comprises a first feeding part arranged between the feeding hopper and the inner barrel body, and the first feeding part comprises a feeding pipeline which is fixedly connected to the inner barrel body and is rotatably connected to the support, and a spiral blade which is rotatably arranged on the inner side of the feeding pipeline in a penetrating manner and is used for conveying ash to the inner side of the inner barrel body; the driving assembly further comprises a transmission shaft, and the transmission shaft is horizontally arranged on the inner side of the inner barrel body and is fixedly connected between the driving rod and the end part of the rotating blade.

Through adopting above-mentioned scheme, the feed hopper carries the lime-ash to the feed pipeline in, and the actuating lever passes through the transmission shaft and drives helical blade and rotate, and helical blade rotates in the feed pipeline, therefore helical blade continuously carries the lime-ash to the interior staving with the lime-ash.

Preferably, a swinging screening machine for receiving ash is fixed on the bracket at the lower side of the discharge hopper.

Through adopting above-mentioned scheme, through the setting of sieve rocking screening machine, the lime-ash that the screening machine that sways ground is further sieved to obtain the lime-ash of corresponding size.

Preferably, the side wall of the outer barrel body is provided with an observation port, and the top of the observation port is buckled with a shielding cover for sealing the observation port.

By adopting the scheme, the arrangement of the observation port is convenient for workers to observe the condition of the inner side of the outer barrel body; meanwhile, ash in the outer barrel body is prevented from leaking out through the observation port by the arrangement of the shielding cover.

To sum up, the utility model discloses a beneficial technological effect does: through the setting of second filter screen, and the second filter screen sets up to its border department slope downwards from its middle part, consequently, the staff pours the lime-ash into the second filter screen and makes on, and the lime-ash slides downwards along the inclined plane of second filter screen and sees through the second filter screen, and iron nail etc. in the lime-ash are filtered out, and then prevent that the iron nail in the lime-ash from getting into grinding in the portion to damage grinding portion. Meanwhile, the second filter screen is convenient to disassemble, and workers can clean iron nails and the like on the second filter screen conveniently.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of the inner and outer tubs according to an embodiment;

FIG. 3 is an enlarged partial schematic view of portion A of FIG. 2;

FIG. 4 is an exploded view of the feed assembly of the first embodiment;

FIG. 5 is a schematic structural diagram of a discharging assembly in the first embodiment;

FIG. 6 is a schematic view showing a connection structure between the first filter net and the annular convex ring according to the second embodiment;

FIG. 7 is an enlarged partial schematic view of portion B of FIG. 6;

FIG. 8 is a schematic structural view of a discharging assembly of the third embodiment.

In the figure: 1. a support; 11. a bearing seat; 2. a grinding section; 21. an inner barrel body; 211. a discharge port; 212. an annular convex ring; 213. an annular boss; 22. an outer barrel body; 221. a discharging hopper; 222. a viewing port; 223. a shielding cover; 23. steel balls; 24. a first sealing net; 25. fastening a bolt; 26. a locking assembly; 261. a locking lever; 262. a spring; 263. a first limit ring; 264. a second stop collar; 27. a spare sealing cover; 3. a supply assembly; 31. a feed hopper; 311. a second filter screen; 312. an annular flange; 32. a feeding assembly; 321. a first feeding section; 3211. a feed conduit; 3212. a helical blade; 322. a second feeding section; 3221. a feed line; 3222. rotating the shell; 3223. a rotating member; 3224. a rotor blade; 3225. a feeding cavity; 4. a drive assembly; 41. a motor; 42. a drive rod; 43. a drive shaft; 44. a belt pulley; 45. a belt; 5. a discharge assembly; 51. a first discharge conduit; 52. a second discharge pipe; 53. a dust-proof cloth bag; 54. a first connecting sleeve; 55. a second connecting sleeve; 6. swinging the screening machine; 61. and connecting the convex ring.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to the figure 1, for the utility model discloses a clear up convenient automatic screening system, including support 1, the top level of support 1 is fixed with the grinding portion 2 that is used for grinding the lime-ash, installs on support 1 and puts through in the inboard feed assembly 3 of 2 horizontal tip of grinding portion, and feed assembly 3 carries the lime-ash to the inboard of grinding portion 2. A discharging hopper 221 is arranged at the bottom of the grinding part 2, and ground ash is discharged through the discharging hopper 221; meanwhile, the bottom of the support 1 is provided with the swing screening machine 6, the swing screening machine 6 is arranged on the right lower side of the discharge hopper 221, and a discharge assembly 5 for conveying ground ash into the swing screening machine 6 is vertically arranged between the discharge hopper 221 and the swing screening machine 6. Specifically, in the staff pours the lime-ash into feed subassembly 3, feed subassembly 3 carries the lime-ash to grinding portion 2, and grinding portion 2 grinds the lime-ash and carries to ejection of compact subassembly 5 through ejection of compact funnel 221 after accomplishing to carry to swing sieve extension 6 through ejection of compact subassembly 5, swing sieve extension 6 sieves the lime-ash after grinding.

Referring to fig. 1 and 2, the grinding part 2 comprises an inner barrel body 21 and steel balls 23, two bearing seats 11 which are arranged in parallel are vertically fixed at the top of the bracket 1 through bolts, the inner barrel body 21 is horizontally arranged and vertically and rotatably connected between the two bearing seats 11, and the feeding assembly 3 conveys ash into the inner barrel body 21; meanwhile, a plurality of steel balls 23 are movably arranged in the inner barrel body 21, and the steel balls 23 grind ash slag in the rotating process of the inner barrel body 21. Further realize that interior staving 21 rotates to be connected between two bearing frame 11, the perpendicular and fixedly connected with actuating lever 42 of center department of an end face of interior staving 21, actuating lever 42 rotates through ball bearing and connects on a bearing frame 11. The center of the other end face of the inner barrel 21 is vertically and fixedly connected with a supply pipeline 3211, the supply pipeline 3211 is communicated with the inner side of the inner barrel 21, and the supply pipeline 3211 is rotatably connected to the other bearing seat 11 through a ball bearing, so that the inner barrel is rotatably connected between the two bearing seats 11 through the driving rod 42 and the supply sleeve.

Referring to fig. 2 and 3, a circular discharge hole 211 is formed in a side wall of the inner tub body 21, the discharge hole 211 is communicated with an inner side of the inner tub body 21, an annular convex ring 212 protrudes from an outer wall of the inner tub body 21 around the discharge hole 211, an annular boss 213 is integrally formed around the discharge hole 211 around an inner wall of the annular convex ring 212, and the first filter screen 24 is embedded in the inner side of the annular convex ring 212 and abuts against the annular boss 213. Meanwhile, the first filter screen 24 is provided with a fastening bolt 25 in a penetrating manner, and the fastening bolt 25 is screwed on the annular boss 213 so as to fix the first filter screen 24 on the annular boss 213.

A spare sealing cover 27 for sealing the discharge hole 211 is arranged on the end part of the outer side of the annular convex ring 212, and the spare sealing cover 27 is in threaded connection with the annular convex ring 212. When the worker prevents the ash in the inner tub from leaking through the first filter net 24, the standby sealing cover 27 seals the discharge port 211.

The grinding part 2 also comprises an outer barrel body 22, the outer barrel body 22 is horizontally and fixedly connected to the support 1, and the inner barrel body 21 is positioned on the outer side of the outer barrel body 22; meanwhile, the driving rod 42 penetrates through the center of one end face of the outer barrel body 22, the driving rod 42 is rotatably connected with the outer barrel body 22 through a sealing bearing, the feeding pipeline 3211 penetrates through the center of the other end face of the outer barrel body 22, the feeding pipeline 3211 is rotatably connected to the outer barrel body 22 through a sealing bearing, and the discharging funnel 221 is fixedly connected to the bottom of the outer barrel body 22.

The center of the top of the outer barrel body 22 is provided with a circular observation port 222, the periphery of the observation port 222 is upwards protruded with an annular convex edge, and the annular convex edge is buckled with a shielding cover 223.

Referring to fig. 1 and 2, further, the inner barrel 21 is automatically rotated, and the support 1 is provided with a driving assembly 4 for driving the inner barrel 21 to rotate. The driving assembly 4 comprises the driving rod 42 and the motor 41 driving the driving rod 42 to rotate, the motor 41 is horizontally fixed on the bracket 1 through a bolt, and a driving shaft of the motor 41 is arranged in parallel with the driving rod 42. A belt pulley 44 is fixed on the outer side of the driving shaft of the motor 41, a belt pulley 44 is also fixed on the outer side of the driving shaft 42, and a belt 45 is fixed on the outer sides of the two belt pulleys 44. Therefore, when the worker starts the motor 41, the motor 41 drives one belt 45 wheel 44 to rotate, and one belt 45 wheel 44 drives the other belt 45 wheel 44 to rotate through the belt 45, so that the belt 45 wheel 44 drives the driving rod 42 to rotate, the driving rod 42 drives the inner barrel body 21 to rotate, and the steel balls 23 of the inner barrel body 21 are ground by ash.

Referring to fig. 1 and 4, the feeding assembly 3 includes a feeding funnel 31 for a worker to load a large amount of ash, the feeding funnel 31 is fixed on the support 1, any horizontal section of the cavity in the feeding funnel 31 is circular, a second filter screen 311 is movably placed in the feeding funnel 31, the peripheral edge of the second filter screen 311 is attached to the inner wall of the feeding funnel 31, and the second filter screen 311 is arranged from the center to the outer edge thereof in an inclined downward manner; meanwhile, an annular rib 312 is obliquely and upwardly fixed around the outer edge of the first filter 24, and the outer wall of the annular rib 312 is attached to the inner wall of the feed hopper 31. Specifically, when the worker adds ash into the feeding hopper 31, the ash passes through the second filter screen 311 and is conveyed into the inner barrel 21 for grinding, and impurities such as screws contained in the ash slide down between the retaining edge and the second filter screen 311 along the inclined surface of the second filter screen 311. When impurities such as screws need to be cleaned, the worker only needs to take down the second filter screen 311 and pour the impurities on the second filter screen 311.

The feeding assembly 3 further comprises a feeding assembly 32 connected between the bottom of the feeding hopper 31 and the inner barrel 21, and the feeding assembly 32 continuously conveys the ash into the inner barrel 21 (refer to the attached figure 2). The feeding assembly 32 includes a first feeding portion 321 and a second feeding portion 322, the first feeding portion 321 is connected to the inner barrel 21, and the second feeding portion 322 is connected between the first feeding portion 321 and the feeding funnel 31, so that ash residue in the feeding funnel 31 is sequentially conveyed into the inner barrel 21 through the second feeding portion 322 and the first feeding portion 321.

The first feeding part 321 comprises the feeding pipeline 3211 and a helical blade 3212 horizontally arranged in the feeding pipeline 3211 and used for conveying ash, one end of the helical blade 3212 is close to the end of the second feeding part 322, and the other end of the helical blade 3212 is close to the inner side of the inner barrel body 21; meanwhile, the driving assembly 4 further includes a transmission shaft 43, the transmission shaft 43 is horizontally disposed inside the inner tub body 21 and is collinear with the central axis of the inner tub body 21 (refer to fig. 2 in the specification), one end of the transmission shaft 43 is fixedly connected to one end of the driving rod 42, and the other end of the transmission shaft 43 is welded to the central portion of the helical blade 3212. Therefore, when the driving rod 42 drives the inner tub body 21 to rotate, the driving rod 42 drives the spiral blade 3212 to rotate through the transmission shaft 43, so that the spiral blade 3212 continuously conveys the ash slag conveyed into the supply pipeline 3211 into the inner tub body 21.

The second feeding portion 322 includes a feeding pipeline 3221, a rotating shell 3222, a rotating member 3223 and a rotating blade 3224, one end portion of the feeding pipeline 3221 is vertically and fixedly connected to the bottom of the feeding funnel 31, the other end portion of the feeding pipeline 3221 is gradually bent to a horizontal state, the rotating shell 3222 is vertically and rotatably connected to the end portion, far away from the feeding funnel 31, of the feeding pipeline 3221 through a sealing bearing, one side, far away from the feeding pipeline 3221, of the rotating shell 3222 is fixedly connected to the end portion of the feeding pipeline 3211 through a bolt, the feeding pipeline 3211 is communicated with the inner side of the rotating shell 3222, and the diameter of the inner side of the rotating shell 3222 is greater than the. The rotating member 3223 of the cone-shaped body is horizontally arranged in the rotating shell 3222, and the spike portion of the rotating member 3223 horizontally extends to the center of the port of the supply pipe 3211. The four rotating blades 3224 are vertically welded on the side wall of the rotating member 3223, one side of the rotating blade 3224, which is far away from the rotating member 3223, is welded on the inner wall of the rotating shell 3222, so that the rotating blade 3224 and the rotating blade divide the interior of the rotating shell 3222 into four feeding cavities 3225, one port of each feeding cavity 3225 horizontally faces to a port of the feeding pipeline 3221 and is communicated with the feeding pipeline 3221, and ash residues in the feeding pipeline 3221 can slide into the feeding cavity 3225 at the lowest side; meanwhile, the other port of the feeding cavity 3225 faces horizontally to the port of the supply conduit 3211 and communicates with the supply conduit 3211. When the feeding cavity 3225 filled with ash rotates to the upper side of the rotating member 3223, the ash in the feeding cavity 3225 slides down into the feeding pipeline 3211 along the inclined surface of the side wall of the rotating member 3223 and is conveyed into the inner feeding pipeline 3221 through the spiral blade 3212, so that the rotating member 3223 and the rotating blade 3224 continuously convey a certain amount of ash to the feeding pipeline 3211, and the spiral blade 3212 is prevented from being jammed.

Referring to fig. 5, discharge assembly 5 is vertical to be connected between discharge funnel 221 and swing screening machine 6, discharge assembly 5 includes dustproof sack 53 from bottom to top in proper order, first ejection of compact pipeline 51, second ejection of compact pipeline 52, swing screening machine 6 open-top's vertical arch all around has connection bulge loop 61, the outside that is fixed in connection bulge loop 61 is established and pasted to the lower tip cover of dustproof sack 53, the outside that is fixed in first ejection of compact pipeline 51 lower part is established and pasted to the upper end cover of dustproof sack 53, and the bottom dismantlement of second ejection of compact pipeline 52 is connected in the upper portion of first ejection of compact pipeline 51, the top dismantlement of second ejection of compact pipeline 52 is connected in the bottom of discharge funnel 221.

Further realize that second ejection of compact pipeline 52 dismantles to be connected between the top of first ejection of compact pipeline 51 and ejection of compact funnel 221, flange joint is passed through with the top of first ejection of compact pipeline 51 to the bottom of second ejection of compact pipeline 52, and flange joint is also passed through with the bottom of ejection of compact funnel 221 to the top of second ejection of compact pipeline 52.

The implementation principle of the embodiment is as follows: when the ash is ground, the ash is poured into the feeding funnel 31 and onto the second filter screen 311 by the worker, and when the ash slides down along the upper side of the second filter screen 311, impurities such as nails contained in the ash are filtered, and the filtered ash is conveyed to the inside of the inner barrel 21 through the first feeding portion 321 and the second feeding portion 322. At this moment, the motor 41 drives the inner barrel body 21 to vertically rotate through the driving rod 42, the steel balls 23 in the inner barrel body grind ash, the ground ash is discharged into the outer barrel body 22 through passing through the second filter screen 311, the ash slides into the discharging hopper 221 along the inner wall of the outer barrel body 22, and the ash in the discharging hopper 221 is conveyed to the swing screening machine 6 for screening along the discharging component 5, so that the needed ash is obtained.

When the ash is sequentially fed into the second feeding portion 322 and the first feeding portion 321, the ash in the feeding hopper 31 is fed into the rotating shell 3222 through the feeding pipe 3221 and slides into the feeding cavity 3225 at the lowest side of the rotating member 3223, the feeding pipe 3221 drives the rotating shell 3222 to rotate, the rotating shell 3222 drives the rotating member 3223 to rotate through the rotating blade 3224, the feeding cavity 3225 feeds the ash to the upper side of the rotating member 3223, at this time, the ash on the upper side of the rotating member 3223 slides into the feeding pipe 3211 along the inclined surface of the rotating member 3223, and the ash in the feeding pipe 3211 is fed into the inner side of the inner barrel 21 through the rotation of the spiral blade 3212.

When the impurities in the inner barrel body 21 are more or the steel balls 23 need to be cleaned, a worker can detach the first filter screen 24 through the observation port 222, manually rotate the inner barrel body 21 to adjust the discharge port 211 on the side wall of the inner barrel body 21 to be aligned with the discharge hopper 221, and the impurities, the steel balls 23 and the like in the inner barrel body 21 are discharged into the swing screening machine 6 through the discharge assembly 5 and are discharged from the discharge port 211 of the swing screening machine 6.

When more ash and slag are adhered to the inner wall of the discharging component 5, the discharging component 5 cannot timely grind the ash and slag, and mainly, more ash and slag are adhered to the side wall of the second discharging pipeline 52. The worker can detach the second discharge duct 52 to perform cleaning of the inner wall of the second discharge duct 52, and the worker can clean the first discharge duct 51 through the top of the first discharge duct 51.

In the second embodiment, the first embodiment of the method,

the difference between the second embodiment and the first embodiment is that, referring to fig. 6 and 7, the first filter 24 is fixed at the opening of the inner barrel 21 in a different manner, the sidewall of the annular convex ring 212 is provided with two locking assemblies 26 for abutting the first filter 24 on the annular boss 213, and the two locking assemblies 26 are symmetrically arranged on the sidewall of the annular convex ring 212. The locking assembly 26 includes a locking rod 261 and a spring 262, the locking rod 261 is disposed on the sidewall of the annular convex ring 212 in a penetrating manner, the first filter screen 24 is abutted between the inner side of the locking rod 261 and the outer side of the annular boss 213, the spring 262 is sleeved on the outer side of the locking rod 261, the spring 262 is located on the outer side of the annular convex ring 212, one end of the spring 262 is welded with a first limiting ring 263 which is slidably sleeved on the outer side of the locking rod 261, the first limiting ring 263 is fixedly connected to the outer wall of the annular convex ring 212 through a bolt, the other end of the first limiting ring 263 is welded with a second limiting ring 264, and the second limiting ring 264 is sleeved and fixed on the outer side of the locking rod 261. The worker pulls the locking lever 261 to slide off the first filter 24 through the second stopper 264, the spring 262 is stretched, and the worker takes out the first filter 24.

In the third embodiment, the first step is that,

the third embodiment is different from the first embodiment in that, referring to fig. 8, the second discharge pipe 52 is connected in a different manner, the outer side of the bottom of the second discharge pipe 52 is screwed with the first connection sleeve 54, and the first connection convex ring 61 is screwed with the outer side of the top of the first connection pipe; meanwhile, a second connecting sleeve 55 is screwed on the outer side of the top of the second discharging pipe 52, and the second connecting sleeve 55 is screwed on the outer side of the bottom of the discharging funnel 221.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a high life's automatic screening ball mill, includes support (1), be provided with grinding portion (2) that are used for grinding the lime-ash on support (1), its characterized in that: a feeding assembly (3) for conveying ash to the inner side of the grinding part (2) is arranged on one side of the grinding part (2), and the feeding assembly (3) comprises a feeding hopper (31) arranged on one side of the grinding part (2) and a feeding assembly (32) connected between the feeding hopper (31) and the grinding part (2); the second filter screen that with feed hopper (31) inner wall was laminated is placed in feed hopper (31) internalization, second filter screen (311) are from its middle part to its border department slope downward setting.

2. A long life automatic screening ball mill as claimed in claim 1 wherein: the periphery of the second filter screen (311) is obliquely and upwards provided with an annular rib (312), and the outer wall of the annular rib (312) is attached to the inner wall of the feeding funnel (31).

3. A long life automatic screening ball mill as claimed in claim 1 wherein: the arbitrary horizontal cross section of feed hopper (31) cavity is circular.

4. A long life automatic screening ball mill as claimed in claim 1 wherein: the grinding part (2) comprises an inner barrel body (21) which is horizontally arranged and vertically and rotatably connected to the support (1), an outer barrel body (22) which is sleeved outside the inner barrel body (21) and fixed on the support (1), and steel balls (23) which are movably placed on the inner side of the inner barrel body (21), wherein a discharge hole (211) is formed in the side wall of the inner barrel body (21), a first filter screen (24) for filtering ash residues is fixedly connected to the discharge hole (211), and a discharge hopper (221) is connected to the bottom of the outer barrel body (22); the support (1) is provided with a driving assembly (4) for driving the inner barrel body (21) to rotate.

5. A high life automatic screening ball mill as claimed in claim 4 wherein: drive assembly (4) including the level set up and vertical rotation connect in actuating lever (42) on support (1) and drive actuating lever (42) pivoted motor (41), actuating lever (42) with interior staving (21) fixed connection.

6. A long life automatic screening ball mill as claimed in claim 5 wherein: the feeding assembly (32) comprises a first feeding part (321) arranged between the feeding hopper (31) and the inner barrel body (21), and the first feeding part (321) comprises a feeding pipeline (3211) which is fixedly connected to the inner barrel body (21) and is rotatably connected to the support (1), and a helical blade (3212) which is rotatably arranged on the inner side of the feeding pipeline (3211) and conveys ash to the inner side of the inner barrel body (21); the driving assembly (4) further comprises a transmission shaft (43), wherein the transmission shaft (43) is horizontally arranged on the inner side of the inner barrel body (21) and is fixedly connected between the driving rod (42) and the end part of the helical blade (3212).

7. A long life automatic screening ball mill as claimed in claim 1 wherein: and a swinging screening machine (6) for receiving ash is fixed on the lower side of the discharging hopper (221) on the support (1).

8. A high life automatic screening ball mill as claimed in claim 4 wherein: an observation port (222) is formed in the side wall of the outer barrel body (22), and a shielding cover (223) used for sealing the observation port (222) is connected to the top of the observation port (222).