CN114887720A

CN114887720A - Energy-saving overflow ball mill for zinc powder manufacturing

Info

Publication number: CN114887720A
Application number: CN202210452105.5A
Authority: CN
Inventors: 戴鹏
Original assignee: Jiangsu Shenlong Zinc Industry Co ltd
Current assignee: Jiangsu Shenlong Zinc Industry Co ltd
Priority date: 2022-04-27
Filing date: 2022-04-27
Publication date: 2022-08-12
Anticipated expiration: 2042-04-27
Also published as: CN114887720B

Abstract

The invention relates to the technical field of grinding equipment, and discloses an energy-saving overflow ball mill for zinc powder manufacturing, which comprises a barrel body, wherein two ends of the barrel body are fixedly connected with end covers, lining plates are fixedly sleeved on the inner wall of the barrel body, a feed inlet is formed in the middle of one end cover, a feed part is movably sleeved in the feed inlet, an inner partition pipe is arranged in the feed part, a support part is fixedly sleeved on the inner wall of one side of the lining plate close to the feed part, a main hole and an auxiliary hole are formed in the support part and communicated, and a limit ring is fixedly sleeved on the inner wall of the auxiliary hole positioned at the top end of the support part. According to the invention, the support piece is fixedly sleeved on the inner wall of one side of the lining plate close to the feeding piece, so that the mixture of the material and water discharged from the feeding piece falls along the top end of the support piece, the vertical falling height of the material is effectively shortened, and the falling impact force of the material is reduced, thereby weakening the damage to the support piece and the lining plate, and preventing the damage to the support piece and the lining plate due to excessive wear and shortening of the service life.

Description

Energy-saving overflow ball mill for zinc powder manufacturing

Technical Field

The invention relates to the technical field of grinding equipment, in particular to an energy-saving overflow ball mill for manufacturing zinc powder.

Background

The overflow ball mill is an important grinding equipment for refining solid material into powder, and can be extensively used in the fields of metallurgy, chemical industry, cement and ceramics. The overflow ball mill mainly comprises a cylindrical barrel, a bearing, a lining plate and other parts, taking zinc powder as an example, the overflow ball mill has the working principle as follows: firstly, zinc block materials and a certain amount of water enter the barrel body from a feed inlet at the center of an end cover through a feed part, then the barrel body filled with grinding media and the materials is driven to rotate by a motor, the grinding media are lifted to a certain height along with the rotation of the barrel body under the action of friction force and centrifugal force, and then are thrown off according to a certain linear velocity, so that the materials are crushed under the impact of the grinding media and the additional crushing and grinding stripping action between the grinding media and a lining plate of the barrel body, the fresh surfaces of the zinc block materials are fully exposed, and finally the zinc block materials are discharged out of the barrel body in an automatic overflow mode after being fully ground. The ball mill has the advantages of high crushing ratio, good reliability, strong adaptability and the like, so that the ball mill is widely applied.

However, the overflow ball mill has some defects in the use process: firstly, as the ball mill cylinder is high, the lining plate at the feeding end is easily damaged when zinc block materials fall from an overhigh feeding part, and the service life of the ball mill cylinder is greatly reduced; simultaneously, the sealing means between the feed inlet of current ball mill and the feed inlet adopts simple sealed pad sealing type, can effectively avoid the mixture that feed inlet department material and water of ball mill formed to overflow and cause environmental pollution, however, after the long-time operation of ball mill, contact department between them wears each other and produces the clearance to lead to sealed inefficacy, if not in time adjusting, the mixture will flow through gap department between the two, both caused the serious loss of waiting to grind the material, again can cause environmental pollution.

Disclosure of Invention

Aiming at the defects of the prior overflow ball mill in the use process, the invention provides an energy-saving overflow ball mill for manufacturing zinc powder, which has the advantages of effectively reducing the falling impact force of materials, prolonging the service life of a lining plate, timely adjusting a sealing ring, reducing the gap between the sealing ring and a feeding piece, preventing the mixture from overflowing to cause resource waste and environmental pollution, and solves the technical problems in the prior art.

The invention provides the following technical scheme: an energy-saving overflow ball mill for zinc powder manufacture comprises a barrel body, wherein end covers are fixedly connected with two ends of the barrel body, a lining plate is fixedly sleeved on the inner wall of the barrel body, a feed inlet is formed in the middle of one end cover, a feed part is movably sleeved inside the feed inlet, an inner spacing pipe is arranged inside the feed part, a support part is fixedly sleeved on the inner wall of one side of the lining plate close to the feed part, a main hole and an auxiliary hole are formed in the support part, the main hole is communicated with the auxiliary hole, a limiting ring is fixedly sleeved on the inner wall of the auxiliary hole at the top end of the support part, the limiting ring is movably sleeved with a movable rod, a movable block is fixedly connected at the top end of the movable rod, the movable block is connected with the limiting ring through a vertical spring, a film is fixedly connected at the edge of the top end of the support part above the movable block, the inner wall of the film is in contact with the movable block, and a sealing ring is sleeved on the space between the outer wall of the feed part and the inner wall of the feed inlet, and the outer lane fixedly connected with arc board of sealing washer, with the end cover that the arc board position corresponds has seted up the fixed slot, and fixed slot bottom fixedly connected with mounting, the arc board contacts with the mounting, the outer wall of end cover is fixed to articulate there is the outer panel, and the inner circle of outer panel cup joints with the feed spare activity.

Preferably, the mounting comprises set casing, carriage release lever, movable block and solid fixed ring, the outer wall and the end cover fixed connection of set casing, the side opening has been seted up to the bottom one side of set casing, and the set casing passes through the one end intercommunication of side opening and main hole, is located the side opening top the set casing inner wall is fixed cup joints solid fixed ring, is located the set casing inner wall of fixed ring top cup joints with the one end activity of carriage release lever, and the other end of carriage release lever passes set casing top and movable block fixed connection, the top and the arc board contact of movable block.

Preferably, the lateral wall of carriage release lever is fixedly connected with first card strip and second card strip respectively, and first card strip and second card strip set up in turn, with the fixed shell inner wall top that first card strip and second card strip position correspond articulates there is the gag lever post.

Preferably, the end cover that is located both sides has seted up the side channel around the fixed slot, and the activity of side channel inside has cup jointed the montant, the one end of montant and top one side fixed connection of arc board, a side wall fixedly connected with third card strip of montant, with the side channel inner wall that third card strip position corresponds articulates there is the gag lever post.

Preferably, the cross-sectional shape of half of the supporting member is triangular, and the top end of the supporting member is arranged in an arc shape.

Preferably, one fixing piece corresponds to one main hole, one main hole corresponds to a plurality of auxiliary holes, one auxiliary hole corresponds to one movable rod, and the auxiliary holes are arranged from high to low in length.

Preferably, the number of the fixing pieces is six, and the fixing pieces are uniformly arranged around the sealing ring.

Preferably, the limiting rod is connected with the hinge surface through a side spring on one side close to the sealing ring, the other side of the limiting rod is in contact with the limiting block, the limiting block is fixedly connected with the same hinge surface, and the length and the size of the limiting rod are matched with the first clamping strip, the second clamping strip and the third clamping strip.

Preferably, the first clamping strip and the second clamping strip are arranged asymmetrically, namely when the first clamping strip and the second clamping strip are located at the same height in the fixed shell, the top of the first clamping strip corresponds to the bottom of the second clamping strip, all limiting rods located in one fixed shell are same in height, and the third clamping strip is L-shaped.

The invention has the following beneficial effects:

1. according to the invention, the support piece is fixedly sleeved on the inner wall of one side of the lining plate close to the feeding piece, so that a mixture of materials and water discharged from the feeding piece rolls down along the top end of the support piece, the vertical falling height of the materials is effectively shortened, and the falling impact force of the materials is reduced, thus the damage to the support piece and the lining plate is weakened, the excessive abrasion is prevented, the service life is shortened, and meanwhile, the movable rod and the parts thereof are arranged at the top end of the support piece, so that the rolled materials can be further buffered, the impact force is reduced, the materials can be pushed to move, and the materials are prevented from depositing at the top end of the coating film and being incapable of falling technically.

2. According to the invention, the sealing ring is movably sleeved between the inner side of the feed port and the outer side of the feeding piece, the fixed shell and parts thereof are arranged on the outer side of the sealing ring, the inner part of the fixed shell is communicated with the main hole and the auxiliary hole of the supporting piece, when the movable block is impacted by falling materials and shrinks downwards and inwards, gas in the supporting piece is pressed and discharged into the fixed shell, and then the movable rod is pushed to move towards the sealing ring, so that the extrusion deformation of the sealing ring is realized, the inner ring of the sealing ring is tightly attached to the feeding piece, the position relation between the sealing ring and the feeding piece is timely and effectively adjusted, the gap between the sealing ring and the feeding piece is reduced, and the resource waste and the environmental pollution caused by the overflow of a mixture are avoided.

3. According to the invention, the first clamping strip and the second clamping strip are arranged on the side wall of the moving rod, the limiting rod and the part thereof which are matched with the moving rod are arranged on the inner wall of the fixed shell, the vertical rod connected with the arc plate is arranged on one side of the arc plate, and the third clamping strip, the limiting rod and the part thereof which are matched with the third clamping strip are arranged on the side wall of the vertical rod, so that the sealing ring and the fixed shell are prevented from moving back towards the feeding piece with the help of the first clamping strip, the second clamping strip, the third clamping strip and the matched limiting rod, and the sealing stability between the sealing ring and the feeding piece is effectively improved.

Drawings

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

FIG. 2 is an enlarged view of a portion of the structure A of FIG. 1 according to the present invention;

FIG. 3 is an enlarged view of a portion of the structure shown at B in FIG. 2 according to the present invention;

FIG. 4 is an enlarged view of a portion of the structure of FIG. 2 at C according to the present invention;

FIG. 5 is an enlarged view of a portion of the structure of FIG. 4;

FIG. 6 is a side sectional view of the end cap of the present invention at the location of the seal ring;

FIG. 7 is an enlarged view of a portion of the structure of FIG. 6 at E in accordance with the present invention;

FIG. 8 is a schematic view showing a part of the movable rod according to the present invention.

In the figure: 1. a cylinder body; 11. an end cap; 12. a liner plate; 2. a feeding member; 21. an inner partition pipe; 3. a support member; 31. a main hole; 32. a secondary hole; 4. a movable rod; 41. a movable block; 42. coating a film; 43. a limiting ring; 5. an outer panel; 6. a seal ring; 61. an arc plate; 62. a vertical rod; 7. a stationary case; 71. a travel bar; 72. a moving block; 73. a fixing ring; 8. a limiting rod; 81. a limiting block; 9a, a first clamping strip; 9b, a second clamping strip; 9c and a third clamping strip.

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. 1-3, an energy-saving overflow ball mill for zinc powder production comprises a barrel 1, two ends of the barrel 1 are fixedly connected with end covers 11, a lining plate 12 is fixedly sleeved on the inner wall of the barrel 1, a feed inlet is arranged in the middle of one end cover 11, a feed member 2 is movably sleeved inside the feed inlet, an inner partition pipe 21 is arranged inside the feed member 2, a packing auger device is arranged in the inner partition pipe 21 and can effectively drive solid zinc block materials to move into the barrel 1, a discharge part is arranged in the middle of the other end cover 11, an outer wheel is fixedly sleeved on the outer wall of the barrel 1 close to the discharge part and is movably connected with a motor device, the barrel 1 can be driven to integrally rotate when the motor device is started, the support member 3 is fixedly sleeved on the inner wall of one side of the lining plate 12 close to the feed member 2, the cross section of half of the support member 3 is triangular, and the top end of the support member is arc-shaped, the material falling from the feeding part 2 can roll down to the lining plate 12 through the supporting part 3, the vertical falling distance of the material is effectively shortened, the impact force generated by the gravity acceleration of the material is reduced, the abrasion between the supporting part 3 and the lining plate 12 is reduced, the service life of the material is prolonged, the main hole 31 and the auxiliary hole 32 are formed in the supporting part 3, the main hole 31 is communicated with the auxiliary hole 32, the inner wall of the auxiliary hole 32 at the top end of the supporting part 3 is fixedly sleeved with the limiting ring 43, the limiting ring 43 is movably sleeved with the movable rod 4, the top end of the movable rod 4 is fixedly connected with the movable block 41, the movable block 41 is connected with the limiting ring 43 through the vertical spring, the top end edge of the supporting part 3 above the movable block 41 is fixedly connected with the coating film 42, the inner wall of the coating film 42 is in contact with the movable block 41, when the material falls onto the coating film 42, the protrusion of the coating film 42 caused by the movable block 41 can effectively block the material, thereby reduce the falling speed of material, when the material passes through protruding position, can flatten the arch, play the cushioning effect to it, simultaneously when the material leaves the tectorial membrane 42 position that this movable block 41 corresponds, movable block 41 no longer pressurized and rebound, make the tectorial membrane 42 lifting of this position, thereby form the difference in height with tectorial membrane 42 of below, and then effectively promote the material and can thoroughly fall, and do not pile up in support piece 3's top, to sum up, a main hole 31 corresponds a plurality of auxiliary hole 32, an auxiliary hole 32 corresponds a movable rod 4, auxiliary hole 32 is by high to low length arrangement, can be when the material falls along support piece 3, the movable block 41 with the material between collide with each other, make movable rod 4 and part pressurized move down, thereby produce the motive force to sealing washer 6, make the leakproofness improve between sealing washer 6 and the feeding piece 2.

Referring to fig. 1-2, 4, 6-7, further, a sealing ring 6 is movably sleeved in a space between an outer wall of the feeding member 2 and an inner wall of the feeding port, an arc plate 61 is fixedly connected to an outer ring of the sealing ring 6, a fixing groove is formed in an end cover 11 corresponding to the arc plate 61, a fixing member is fixedly connected to a bottom end of the fixing groove, the fixing member is composed of a fixing shell 7, a moving rod 71, a moving block 72 and a fixing ring 73, an outer wall of the fixing shell 7 is fixedly connected to the end cover 11, a side hole is formed in one side of a bottom end of the fixing shell 7, the fixing shell 7 is communicated with one end of the main hole 31 through the side hole, the fixing ring 73 is fixedly sleeved on an inner wall of the fixing shell 7 above the side hole, an inner wall of the fixing shell 7 above the fixing ring 73 is movably sleeved with one end of the moving rod 71, and the other end of the moving rod 71 passes through a top end of the fixing shell 7 and is fixedly connected with the moving block 72, the top and the arc 61 contact of movable block 72, the fixed articulated outer panel 5 that has of outer wall of end cover 11, and the inner circle of outer panel 5 cup joints with the activity of feeding piece 2, outer panel 5 and support piece 3 all contact with the both sides of sealing washer 6, thereby to the restriction of 6 both sides of sealing washer, when making sealing washer 6 receive the mounting extrusion, sealing washer 6 pressurized can only make its inner circle shrink, to sum up, a mounting corresponds a main bore 31, the quantity of mounting is six, and the mounting is around the even setting of sealing washer 6, evenly apply thrust to sealing washer 6, make sealing washer 6 everywhere all can be inseparable with the laminating of feeding piece 2.

Referring to fig. 4-8, further, the side wall of the moving rod 71 is fixedly connected with a first clamping strip 9a and a second clamping strip 9b, and the first clamping strip 9a and the second clamping strip 9b are alternately arranged, and the first clamping strip 9a and the second clamping strip 9b are asymmetrically arranged, that is, when the moving rod is located at the same height in the fixed casing 7, the top of the first clamping strip 9a corresponds to the bottom of the second clamping strip 9b, and all the limiting rods 8 located in one fixed casing 7 have the same height, so that the moving accuracy of the moving rod 71 can be further enhanced, thereby improving the accuracy of the moving amplitude of the moving rod 71 and the sealing ring 6, realizing the timely adjustment of the gap between the sealing ring 6 and the feeding member 2, the limiting rods 8 are hinged above the inner wall of the fixed casing 7 corresponding to the positions of the first clamping strip 9a and the second clamping strip 9b, the end caps 11 located at the front and rear sides of the fixed groove are provided with side grooves, and the side grooves are movably sleeved with vertical rods 62, one end of the vertical rod 62 is fixedly connected with one side of the top end of the arc plate 61, one side wall surface of the vertical rod 62 is fixedly connected with a third clamping strip 9c, the third clamping strip 9c is L-shaped, so that the side, contacting with the outer ring of the sealing ring 6, of the third clamping strip 9c is smooth, the outer ring of the sealing ring 6 is effectively limited from being pressed to expand, the sealing ring 6 is promoted to expand only inwards, the gap between the sealing ring 6 and the feeding piece 2 is reduced timely, the sealing performance of the sealing ring and the feeding piece 2 is improved, a limiting rod 8 is hinged to the inner wall of the side groove corresponding to the position of the third clamping strip 9c, one side, close to the sealing ring 6, of the limiting rod 8 is connected with the hinged surface through a side spring, the other side of the limiting rod 8 is contacted with a limiting block 81, the limiting block 81 is fixedly connected with the same hinged surface, the length and the size of the limiting rod 8 are adapted to the first clamping strip 9a, the second clamping strip 9b and the third clamping strip 9c, and under the use of the limiting rod 8, the movable rod 71 and the vertical rod 62 can only move towards the direction of the sealing ring 6 and cannot retract, so that the working stability of the sealing ring is effectively improved, and the gap between the sealing ring 6 and the feeding piece 2 is prevented from increasing.

The using method of the invention has the following working principle:

starting a motor device to enable the cylinder body 1 to rotate, introducing zinc block materials into the cylinder body 1 through the inner partition pipe 21 and the auger device thereof, introducing water into the cylinder body 1 through the feeding piece 2 on the outer side of the inner partition pipe 21, discharging a mixture of the zinc block materials and the water into the cylinder body 1, then enabling the mixture to fall into the top end of the support piece 3 in a parabolic shape, moving the mixture along the radian of the top end of the support piece 3 towards the direction of the lining plate 12 until the mixture falls onto the lining plate 12, grinding and discharging and collecting after subsequent operation, shortening the vertical direction distance of falling materials due to the existence of the support piece 3, reducing the impact force generated by falling materials, reducing the abrasion degree of the lining plate 12 and the support piece 3, thereby prolonging the service life of the materials, and simultaneously in the process, impacting and colliding the falling materials with the coating film 42 on the top end of the movable block 41, thereby reducing the falling speed due to the blocking of the coating film 42, the material is effectively buffered, when the material leaves the top end of the movable block 41, the coating film 42 is effectively lifted, the material to be separated is further pushed to fall, the falling effect of the material is improved, meanwhile, when the material collides with the movable block 41, the movable block 41 is effectively promoted to retract into the auxiliary hole 32, the gas in the auxiliary hole 32 is effectively pushed to move, the gas is moved into the fixed shell 7, the moving rod 71 is pushed to move towards the direction of the sealing ring 6, the moving block 72 extrudes the sealing ring 6 and the arc plate 61, meanwhile, the supporting piece 3, the outer side plate 5 and the vertical rod 62 limit the outer ring and two sides of the sealing ring 6, therefore, the sealing ring 6 can only deform towards the inner ring after being pressed, the inner ring of the sealing ring 6 is expanded, the reduction between the sealing ring 6 and the feeding piece 2 is shortened, the sealing performance of the sealing ring is improved, the gap is effectively prevented from being increased, the mixture cannot be timely adjusted to overflow, and resource conservation is realized, The protection of environment, first card strip 9a, second card strip 9b, third card strip 9c and the gag lever post 8 rather than supporting restrict carriage release lever 71 and montant 62 simultaneously, prevent effectively that the movable rod 4 from moving outward, parts back and lead to sealing washer 6 can't closely laminate with feeding piece 2 when the atmospheric pressure reduces in the stationary housing 7, have further guaranteed steadiness and compactness between sealing washer 6 and the feeding piece 2.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an energy-conserving overflow type ball mill for zinc powder manufacturing, includes barrel (1), both ends fixed connection end cover (11) of barrel (1), the inner wall of barrel (1) is fixed to cup joint welt (12), one the feed inlet has been seted up at the middle part of end cover (11), and the inside activity of feed inlet cup joints feeding piece (2), the inside of feeding piece (2) is provided with interior spacer tube (21), its characterized in that: the inner wall of one side of a lining plate (12) close to the feeding piece (2) is fixedly sleeved with a support piece (3), a main hole (31) and an auxiliary hole (32) are formed in the support piece (3), the main hole (31) is communicated with the auxiliary hole (32), a limiting ring (43) is fixedly sleeved on the inner wall of the auxiliary hole (32) at the top end of the support piece (3), the limiting ring (43) is movably sleeved with a movable rod (4), the top end of the movable rod (4) is fixedly connected with a movable block (41), the movable block (41) is connected with the limiting ring (43) through a vertical spring, a covering film (42) is fixedly connected to the edge of the top end of the support piece (3) above the movable block (41), the inner wall of the covering film (42) is in contact with the movable block (41), a sealing ring (6) is movably sleeved in the space between the outer wall of the feeding piece (2) and the inner wall of the feeding port, and the outer lane fixedly connected with arc board (61) of sealing washer (6), with the fixed slot has been seted up in end cover (11) that arc board (61) position corresponds, and fixed slot bottom fixedly connected with mounting, arc board (61) and mounting contact, the outer wall fixed articulated of end cover (11) has outer panel (5), and the inner circle of outer panel (5) cup joints with feeding piece (2) activity.

2. The overflow ball mill for zinc powder production in energy saving of claim 1, wherein: the mounting comprises set casing (7), carriage release lever (71), movable block (72) and solid fixed ring (73), the outer wall and end cover (11) fixed connection of set casing (7), the side opening has been seted up to the bottom one side of set casing (7), and set casing (7) communicate through the one end of side opening and main hole (31), is located the side opening top set casing (7) inner wall is fixed to cup joint solid fixed ring (73), is located the one end activity of set casing (7) inner wall and carriage release lever (71) of set casing (73) top cup joints, and the other end of carriage release lever (71) passes set casing (7) top and movable block (72) fixed connection, the top and the arc board (61) contact of movable block (72).

3. The overflow ball mill for manufacturing zinc powder in energy saving of claim 2, wherein: the lateral wall of carriage release lever (71) is the first card strip of fixedly connected with (9 a) and second card strip (9 b) respectively, and first card strip (9 a) and second card strip (9 b) set up in turn, with it has gag lever post (8) to articulate to block fixed shell (7) inner wall top that strip (9 a) and second card strip (9 b) position correspond.

4. The overflow ball mill for manufacturing zinc powder in energy saving of claim 3, wherein: the side channel has been seted up in end cover (11) that are located both sides around the fixed slot, and the activity of side channel inside has cup jointed montant (62), the one end of montant (62) and top one side fixed connection of arc board (61), one side wall fixedly connected with third card strip (9 c) of montant (62), with the side channel inner wall that third card strip (9 c) position corresponds articulates there is gag lever post (8).

5. The overflow ball mill for manufacturing zinc powder in energy saving of claim 1, wherein: the cross section of half of the supporting piece (3) is triangular, and the top end of the supporting piece is arc-shaped.

6. The overflow ball mill for manufacturing zinc powder in energy saving of claim 1, wherein: one of the fixing pieces corresponds to one of the main holes (31), one of the main holes (31) corresponds to a plurality of auxiliary holes (32), one of the auxiliary holes (32) corresponds to one of the movable rods (4), and the auxiliary holes (32) are arranged from high to low in length.

7. The overflow ball mill for manufacturing zinc powder in energy saving of claim 1, wherein: the number of the fixing pieces is six, and the fixing pieces are uniformly arranged around the sealing ring (6).

8. The overflow ball mill for manufacturing zinc powder in energy saving of claim 4, wherein: the utility model discloses a stop lever, including gag lever post (8), stopper (81), stopper (8) and third card strip (9 c), the opposite side of gag lever post (8) is close to between sealing washer (6) one side and the articulated face through side spring coupling, the opposite side and the stopper (81) contact of gag lever post (8), and stopper (81) fixed connection are in same articulated face, the length, the size of gag lever post (8) suit with first card strip (9 a), second card strip (9 b), third card strip (9 c).

9. The overflow ball mill for zinc powder manufacture of claim 8, wherein: first card strip (9 a) and second card strip (9 b) are asymmetric setting, lie in promptly when same height in set casing (7), the top of first card strip (9 a) corresponds with the bottom of second card strip (9 b), lie in one all gag lever post (8) height in set casing (7) are the same, third card strip (9 c) are the L type.