JP3199646B2 - How to use shell body, rod mill and rod mill - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shell liner, a shell body, a rod mill, and a method of using a rod mill. More particularly, the present invention relates to a shell liner having a mounting portion substantially at a center in a width direction perpendicular to a longitudinal direction of a shell lifter. A shell body having juxtaposed shell liners of different materials and shapes, a method of using a rod mill for reversibly rotating the shell body, and crushing ore supplied into the shell body to crush stones, and this method. And a rod mill used for

[0002]

2. Description of the Related Art Conventionally, an arbitrary ore is supplied into a rotating cylindrical shell body and crushed between a rod housed in the shell body and a shell liner provided on the inner wall of the shell body. In order to increase the crushing efficiency of the rough, the shell mill is composed of a plurality of shell liner bodies divided and fixed in the circumferential direction of the shell body and a shell lifter fitted and fixed between the shell liner bodies. Make up the liner. In addition, since the shell body is cylindrical and is rotated in one direction, rods, rough stones, crushed stones, etc. move irregularly in the shell body, and relatively move to the chamfer on the rotation direction side in the upper part of the shell lifter. Collision occurs with great frequency, and the chamfered portion on the rotation direction side of the shell lifter is more worn than the chamfered portion on the opposite side to the rotation direction, so the width of the shell lifter on the rotation direction side with respect to the mounting portion to the shell body. Is larger than the width on the side opposite to the rotation direction, and the width from the mounting portion to the end face is rearranged depending on the rotation direction in use. Further, the shell liner and the shell lifter body are made of hard rubber, and those made of steel or ceramic have not been adopted.

[0003]

However, as described above, the shell lifter provided on the inner wall of the shell main body provided on the rod mill has a large amount of wear on the rotation direction side, so that the width of the shell lifter on the rotation direction side is reduced in the rotation direction. Must be wider than the width of the shell lifter on the opposite side, and the width from the mounting part to the end face must be widely changed depending on the direction of use.Because the rod mill cannot be used during this work, the operation is difficult, and However, there are problems such as a reduction in the efficiency of crushing of rough stone. Also, on the supply port side of the shell body, the rough is large, so it is difficult for the rough to be thrown between the protruding shell lifter and the rod, and because the shell liner and the shell lifter are made of rubber, the efficiency of crushing the rough is reduced. There are problems such as difficulty in further improvement.

In view of the above, the present invention facilitates the supply and introduction of ore into a shell body and the discharge of crushed stone in the use of a rod mill, and reduces the number of replacements of a shell lifter in a shell liner. The purpose is to improve the efficiency of crushing rough stones.

[0005]

The present invention SUMMARY OF] is a one that is created in order to solve the above problems, the first, Chez
A shell liner on an inner wall of the shell body.
And the shell liner is made of steel or ceramic.
Concave liner with concave surface
A concave shell liner formed by arranging a plurality of element bodies,
Convex liner body made of steel or ceramic.
Formed by providing a plurality of convex liner bodies having a convex part in the center
Convex shell liner, shell lifter and shell
A rubber shell liner having an inner body.
The cross-sectional shape in the direction perpendicular to the longitudinal direction of the
It has a substantially square shape and has chamfers at both upper ends,
A guide member is provided along the longitudinal direction.
The guide member is provided with a fixing member, and at least
Shell lifters whose outer surface is made of rubber
A lid and a rubber shell disposed between the shell lifters
A rubber shell liner having a liner body;
From the supply port side to the discharge port side of the shell body.
The concave shell liner, the convex shell liner,
Rubber shell liner, convex shell liner, concave
It is arranged in the order of the planar shell liner, and
The boundary between the shell liner and the convex shell liner is uneven
It is characterized by having a shape.

In the shell body having the first configuration, the concave
A planar shell liner is located near the supply port side of the shell body and drained.
Around the inner wall near the exit,
Because the rollers are in a larger form, the shell body
Supply and input of rough stones when installed and operated
Alternatively, it is possible to make the shell body easy to discharge crushed stone.
And each of the peripherally provided concave shell liners
A convex shell liner is juxtaposed next to
As the shell body rotates, the stored
Up and down by the so-called windmill action between the pad and the convex shell liner
It can cause movement and make it easier to crush the rough.
Further, the concave shell liner and the convex shell liner
The boundary of the rough in the circumferential direction of the rough
Damage to the inner peripheral surface of the shell
Can be prevented.

[0007] Second, a shell body is provided.
A shell liner is provided on an inner wall of the shell body, and the shell liner is provided.
Liner is a concave liner made of steel or ceramic
In the body, a plurality of concave liner body having a concave surface
Formed concave shell liner and steel or ceramic
A convex liner body made of Mick, with a convex at the center
Convex shell formed by providing a plurality of planar liner bodies
Having a liner, a shell lifter and a shell liner body
A rubber shell liner, the longitudinal direction of the shell lifter;
When the cross-sectional shape in the direction perpendicular to the direction is
It has chamfers at both ends at the top, along its length.
Guide member is provided, and is fixed to the guide member.
A mounting member is provided, at least outside the shell lifter.
A plurality of shell lifters having a surface made of rubber;
A rubber shell liner body disposed between the lids
A rubber shell liner, and a shell body supply
From the mouth side toward the discharge port side, the concave shell line
, The convex shell liner, the rubber shell liner
, And the convex shell liner is arranged in this order.
The boundary between the concave shell liner and the convex shell liner
The field line has an uneven shape.

In the shell body of the second configuration, the concave
The planar shell liner has an inner wall near the supply port side of the shell body.
Around the so-called flank
Therefore, the above shell body is installed on the rod mill and
Shell body that facilitates the supply and introduction of rough stones
And the concave shell provided around the periphery thereof
The convex shell liner above is located next to the inner side of the inner side.
Is stored along with the rotation of the shell body.
So-called windmill action between a standing rod and a convex shell liner
Can cause up-and-down movement, making it easier for the rough to crush.
Wear. Also, on the inner wall near the outlet side of the shell body,
The convex shell liner is provided around the
The efficiency of crushing work according to the type of rough
It becomes possible. In addition, the concave shell liner and the convex
By making the boundary line with the planar shell liner uneven
Inside the shell body as the rough moves in the circumferential direction.
Large damage to the peripheral surface can be prevented.

Third, the first or second configuration
In the above, the shell body has a supply port side from a discharge port side.
Is a hollow cylinder with a large diameter and a truncated cone.
I do. In the shell body of this configuration, the shell body is connected to the supply port.
Frustoconical hollow cylinder with a larger diameter than the outlet side
So that the inner peripheral surface of the shell liner
The shell body is tapered, and the
When the shell is turned on
The impact of the rod on the accompanying rough works effectively and breaks the rough.
The crushing efficiency can be increased.

[0010] Fourth, a rod mill is used.
Having a shell body of the first, second or third configuration
It is characterized by. Therefore, any of the above first to third
Since the shell body having such a configuration is provided, the rod mill
Crushes rougher than conventional rod mills when
We can provide a rod mill with improved work efficiency
You.

Fifth, in the method of using a rod mill,
Then, into the shell body of the rod mill having the fourth configuration,
The shell body is stored and the rough stone is supplied.
By rotating reversibly, the rough stone and the rod are
It is characterized by being crushed by crushing between Luraina. Book
How to use the rod mill of the configuration, the shape of the shell body and
Shell liners with different materials and shapes inside the shell body
Depending on the arrangement of
Discharge becomes easier, and the efficiency of crushing rough stones is dramatically improved.
As a whole to achieve highly productive work.
Can be

[0012]

[0013]

[0014]

[0015]

[0016]

[0017]

[0018]

[0019]

[0020]

[0021]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One specific example of an embodiment of the present invention will be described with reference to the drawings. First, a first specific example will be described with reference to FIGS. As shown in FIG. 2, the shell main body 1 is a hollow cylindrical body having a truncated conical shape in which the supply port 11 side has a larger diameter than the discharge port 12 side. The shell liner 2 has a shell liner main body 21 and a shell lifter 22, as shown in FIG. Here, the shell liner main body 21 is formed on the inner wall 13 of the shell main body 1 so as to be divided in the circumferential direction and can be attached to the inner wall 13.
A hard rubber integrally having a bottom plate 26 made of a metal material is provided.

The shell lifter 22 has a substantially rectangular cross section in a direction perpendicular to the longitudinal direction, has chamfered portions 25 at both upper ends, and has a mounting portion T at a lower portion. Further, a form in which a holding member 231 made of a metal plate and having a cross-sectional shape conforming to this shape is fitted into the lower groove 23 is formed of hard rubber. The mounting portion T has a mounting member 14 and a bolt 15. An attachment member 14 made of a metal plate is provided so as to cover the lower side of the holding member 231. The mounting member 14 is provided with a tubular portion integrally therewith at a substantially central portion 24 thereof, and a slit-like groove 142 is provided therein so as to face the fitting hole 141 penetrating therethrough. Further, in order for the bolt 15 to be fitted into the fitting hole 141, a pair of protrusions 151 projecting from the shaft near the head is fitted into the slit-shaped groove 142 to prevent the bolt 15 from rotating. In addition, the lower part of the shell lifter 22 is inserted through a bolt hole 150 penetrating through the inner wall 13 and furthermore, the lower part of the shell lifter 22 is tightened with a nut 18 via a seat plate 16 provided with a cushioning material so that the shell lifter 22 can be fixed to the shell main body 1. I have.

Next, the operation of the first embodiment will be described. When the shell liner 2 having the shell liner main body 21 and the shell lifter 22 formed symmetrically with respect to the mounting bolt 15 is mounted on the inner wall 13 of the shell main body 1, the rod 17 is housed in the shell main body 1. Then, the shell main body 1 is reversibly rotated in the rotation direction 41 or 42 via the wheels 31 and the outer ring body 32 having a cushioning property of the drive unit 3 including a motor (not shown), and the hopper Ore 61 stored in 5
Is supplied to the stone feeding device 52 via the chute 51, and is supplied from the stone feeding device 52 together with the water into the shell main body 1.
The raw stone 61 is crushed between the rod 17 and the shell liner 2 to form a crushed stone 62, and the crushed stone 62 is
And then separated by a separation device 53 that separates according to the state of the crushed stone. By using the rod mill 10, since the supply port 11 side has a larger diameter than the discharge port 12 side, the rod 17, the raw stone 61, the crushed stone 62, and the like are regularly arranged with the rotation of the shell main body 1. By operating, the wear of the shell lifter 22 can be substantially equalized to the left and right with respect to the chamfered portion 25.

Next, a second specific example will be described with reference to FIGS. As shown in FIG. 5, the shell main body 1 is a hollow cylindrical body having a truncated cone shape in which the supply port 11 side has a larger diameter than the discharge port 12 side. Also, the shell liner 2 ′
As shown in FIG. 6, it has a shell liner main body 21 and a shell lifter 22 '. Here, shell liner body 2
1 is formed on the inner wall 13 of the shell main body 1 so as to be divided in the circumferential direction so as to be adhered, and hard rubber having a bottom plate 26 made of a metal material is used. The shell lifter 22 ′ has a substantially rectangular cross section in a direction perpendicular to the longitudinal direction thereof, and has chamfered portions 25 ′ at both upper ends.
It has a mounting part T at the lower part.

The mounting portion T includes a guide member 23 'and a bolt 1
5 ′, and has a form in which a bolt 15 ′ having a rectangular head is slid and fitted into a guide member 23 ′ having a groove-shaped groove made of a metal material. The bolt 15 'is attached at a position substantially at the center 24' in the width direction. The material other than the guide member 23 'is hard rubber. The shell lifter 22 ′ inserts the bolt 15 ′ into a bolt hole 150 provided in the shell main body 1, is fitted and fixed between the shell lifter 22 ′ and the shell liner main body 21, and is fixed to the shell main body 1 by the nut 18.

Next, the operation of the second embodiment will be described in the same manner as in the first embodiment. Shell liner body 21
And a shell lifter 22 'having a central portion 24' formed symmetrically with respect to the bolt 15 '.
Is mounted on the inner wall 13 of the shell body 1, the rod 17 is housed in the shell body 1, and the wheel 31 and the outer wheel body 32 having the cushioning property of the drive unit 3 including a motor (not shown) are mounted. Through the shell body 1
Is reversibly rotated in the rotation direction 41 or 42, and the rough 61 stored in the hopper 5 is moved to the chute 5.
1 and is supplied to the shell main body 1 together with water from the stone supplying device 52. Then, the raw stone 61 is crushed between the rod 17 and the shell liner 2 ′ to form a crushed stone 62, and the crushed stone 62 is discharged from the discharge port 12,
Separation is performed by a separation device 53 that separates according to the crushed stone state. Since the supply port 11 side has a larger diameter than the discharge port 12 side by using the rod mill 10 ′, the rod 17, the raw stone 61, the crushed stone 62, and the like are regularly arranged with the rotation of the shell body 1. And the wear of the shell lifter 22 'can be substantially equalized to the left and right with respect to the central portion 24'.

Next, a third specific example will be described with reference to FIGS. The shell main body 1a is, as shown in FIG.
Except for the shell liner 2a provided on the inner wall 13a, the configuration is the same as that of the shell main body 1 of the first specific example, that is, a concentric supply port 11a is provided on both side walls, and a smaller diameter than the supply port 11a. A conical discharge port 12a is provided, and the supply port 11a side is a frusto-conical hollow cylinder having a larger diameter than the discharge port 12a side. The shell liner 2a is provided along the inner wall 13a of the shell main body 1a from the supply port 11a to the discharge port 12a. here,
As shown in FIG. 7, the shell liner 2a has a concave shell liner 7, a convex shell liner 8, and an intermediate shell liner 9 made of a rubber shell liner. These are arranged in a row in the longitudinal direction on the inner wall 13a of the shell main body 1a.

As shown in FIG. 8 and FIG. 9, the concave shell liner 7 is
In the arrangement areas V and Z in FIG. Here, the “array region” refers to each region when the inner peripheral surface of the shell main body is divided with an appropriate width in the longitudinal direction. In particular, only the boundary line K that separates the arrangement region of the concave shell liners 7 from the arrangement region of the convex shell liners 8 described later has an uneven shape in the longitudinal direction.
The same applies hereinafter. Here, the concave liner element body 71 has a substantially rectangular parallelepiped shape made of a steel material, and its lower surface is formed by a gentle arc-shaped curved surface so as to be attachable to the inner wall 13a of the shell main body 1a. The upper surface also has a gentle arc-shaped curved surface along the inner wall 13a of the shell main body 1a, and has a rectangular shape when viewed in plan. Further, the concave liner body 71
Has a mounting portion 73 consisting of four bolt holes near the four corners of the lower surface. The concave liner body 71
Is fitted and fixed by bolts and nuts (not shown),
The shell body 1a is fixed to the inner wall 13a.

As shown in FIGS. 8 and 10, the convex shell liner 8 has a plurality of convex liner bodies 81 arranged in the arrangement regions W and Y of the shell main body 1a. Here, the convex liner body 81 has a convex shape having a projection on the upper surface made of a steel material,
The lower surface is formed with a gentle arc-shaped curved surface so that it can be attached to the inner wall 13a of the shell main body 1a, and
It has a rectangular shape in plan view, and has a protrusion at the center of the upper surface along the long side of the rectangle and approximately half the width of the short side.
Further, the convex liner body 81 has a mounting portion 83 formed of four bolt holes near four corners on the lower surface thereof.
The convex liner body 81 is fitted and fixed by bolts and nuts (not shown), and is fixed to the inner wall 13a of the shell main body 1a.

The intermediate shell liner 9 is substantially the same as the shell liner 2 of the first embodiment or the shell liner 2 'of the second embodiment. That is,
As shown in FIG. 11, it has a shell liner main body 21a and a shell lifter 22a, and is provided in the arrangement area X of the shell main body 1a. Here, the shell liner body 21a is formed of hard rubber having a uniform width in the circumferential direction,
This has a structure in which a bottom plate 26a made of a metal material is integrally attached thereto, and is formed so as to be adhered along the inner wall 13a of the shell main body 1a. Further, the shell liner main body 21a is equally divided in the circumferential direction to fit and fix the shell lifter 22a.

The bottom plate 26a is formed in close contact with the inner wall 13a of the shell main body 1a so as to line up between the divided shell liner main bodies 21a within a range in which the shell lifter 22a is fitted and fixed. Further, the bottom plate 26a is formed to have the same width in the width direction with a central portion 24a in the width direction of the shell lifter main body 221 described later as a center line, and at least a width larger than the width of the shell lifter main body 221 (FIG. 11). reference). The shell lifter 22a has a substantially rectangular cross section in a direction perpendicular to the longitudinal direction as a whole, and includes the shell lifter main body 221 and a mounting portion Ta. Here, the shell lifter main body 221 is provided with chamfered portions 25a at both upper ends.
It is composed of hard rubber provided with. The mounting portion Ta
It is made of a metal material and has a guide member 23a and a bolt 15a.

The guide member 23a is formed by forming a groove-like groove made of a metal material below the shell lifter main body 221, and slides a bolt 15a having a square head on the guide member 23a. It is inserted. The bolt 15a is
The shell lifter main body 221 is attached at the position of the central portion 24a in the width direction. In addition, the shell lifter 2
2a is a bolt hole 150a provided in the shell main body 1a.
The bolt 15a is inserted through the bottom plate 26a into the
It is fitted and fixed between the divided shell liner bodies 21a, and is fixed to the shell body 1a by nuts 18a.

Next, the use state of the shell body 1a of the third specific example will be described with reference to FIG. First, the shell main body 1a is disposed and used at a predetermined position of a rod mill (not shown). That is, the shell main body 1a, in which the rod 17a is housed, is reversibly rotated via a wheel and an outer ring having a cushioning property of a driving unit (not shown) constituted by a motor or the like. The raw stone 61a is supplied to the rotating shell main body 1a together with water from a stone supply device (not shown) which is disposed on the supply port 11a side and can be supplied. Therefore, in the shell main body 1a, the ore 61a
Is crushed into a crushed stone 62a between the rod 17a and the shell liner 2a, and the crushed stone 62a is discharged from the discharge port 12a.
Is discharged from Further, the crushed stone 62a is separated by a separation device (not shown) that separates according to the crushed stone state.

Since the shell body 1a is used, that is, the concave shell liner 7 and the convex shell liner 8 are provided around the inner wall 13a near the supply port 11a and the discharge port 12a side of the shell body 1a. , It is possible to easily put the rough 61a into the supply port 11a,
In addition, the crushed stone 62a in the shell main body 1a can be easily discharged from the discharge port 12a. Therefore, the crushing operation efficiency can be remarkably improved. Further, the boundary line K between the arrangement region of the concave shell liners 7 and the arrangement region of the convex shell liners 8 is made uneven in the longitudinal direction, so that the rough stone 61a moves in the circumferential direction. Large damage to the shell main body 1a can be prevented. Further, since the supply port 11a side of the shell main body 1a has a larger diameter than the discharge port 12a side, the rod 17a and the raw stone 61 are rotated with the rotation of the shell main body 1a.
a, Since the crushed stone 62a rotates regularly, the wear of the shell lifter 22a provided in the intermediate shell liner 9 can be substantially equalized to the left and right with respect to the chamfered portion 25a.
Therefore, the number of times of replacement of the shell lifter 22a can be reduced as compared with the conventional case, and the work efficiency of the rod mill can be improved.

Further, a fourth specific example will be described. The shell main body 1b has the same configuration as that of the third specific example, except for a shell liner 2b provided around the inner wall 13a.
Concentric supply ports 11a on both side walls, and supply ports 11a
A conical circular outlet having a smaller diameter than the concentric discharge port 12a is provided, and the supply port 11a side has a larger diameter than the discharge port 12a side. However, a plurality of concave liner element bodies 71 are provided side by side only in the arrangement area V of the shell body 1b to form the concave shell liner 7, and the convex liner element body 81 is arranged in the arrangement area W of the shell body 1b. For Y and Z,
A difference is that a plurality of shell liners 8 are provided side by side to form a convex shell liner 8.

Next, the use state of the shell body 1b of the fourth specific example will be described. First, the shell main body 1b is disposed and used at a predetermined position of a rod mill (not shown), as in the third specific example. That is, while the shell main body 1b housing the rod 17a is reversibly rotated, the raw stone 61a is supplied together with water from a not-shown stone supply device which is disposed on the supply port 11a side and can be supplied.
a is crushed between the rod 17a and the shell liner 2b to form crushed stones 62a, and the crushed stones 62a
a and is separated by a separation device (not shown). Since the shell main body 1b is used, the same effect as in the third specific example can be obtained. That is, since the concave shell liner 7 and the convex shell liner 8 are provided on the inner wall 13a near the supply port 11a side and the discharge port 12a side of the shell main body 1b, the rough stone 61a can be easily supplied to the supply port 11a. And the crushed stone 62a in the shell main body 1b can be easily discharged from the discharge port 12a. Therefore, the crushing operation efficiency can be remarkably improved.

Further, the boundary line K between the arrangement region of the concave shell liners 7 and the arrangement region of the convex shell liners 8 is made uneven in the longitudinal direction, so that the ore 61a in the circumferential direction is formed. Large damage to the shell main body 1b due to the movement can be prevented. Further, the shell body 1
b has a larger diameter on the supply port 11a side than on the discharge port 12a side.
a, the rough stone 61a and the crushed stone 62a rotate regularly, so that the shell lifter 22 provided in the intermediate shell liner 9
a can be substantially equalized to the left and right with respect to the chamfered portion 25a. Therefore, the number of times of replacement of the shell lifter 22a can be reduced as compared with the conventional case, and the work efficiency of the rod mill can be improved.

In the above embodiment of the present invention, the shell body 1, 1a or 1b has been described as having only a truncated cone shape, but may be any shape including a cylindrical shape. Although the concave shell liner 7 and the convex shell liner 8 are made of steel, they may be made of ceramic. Further, the shell liner 2 or 2 'of the first or second embodiment may be used for the intermediate shell liner 9 of the third or fourth embodiment. Furthermore, the shape, size, material and method of use of the shell liner and the components of the rod mill are as described above,
The means for solving the problems and the effects of the invention described below may be arbitrarily determined, and it is needless to say that any of these changes does not change the gist of the present invention.

[0039]

According to the first aspect of the present invention, there is provided a shell body.
If the concave shell liner is located on the supply port side of the shell body,
And the inner wall near the discharge port side.
Since the shape of the fulcrum is enlarged,
When the main body is installed on a rod mill and operates,
The shell body should be easy to supply / inject or discharge crushed stone.
And the peripherally provided concave shell line
Convex shell liners are juxtaposed next to each inner side
Is stored with the rotation of the shell body.
So-called windmill operation between a rotating rod and a convex shell liner
Can cause up and down movement to make it easier to crush rough stones.
it can. The concave shell liner and the convex shell
By making the boundary line with the liner uneven, the circle of rough stone
The size of the shell body on the inner peripheral surface as it moves in the circumferential direction
Serious damage can be prevented.

Further, according to the second aspect of the present invention,
According to the present invention, the concave shell liner supplies the shell body.
Around the inner wall near the mouth, the so-called
The shell body becomes a rod mill
When installed and operated, a system that facilitates the supply and input of rough stones
And the periphery of the
Next to the inner side of the concave shell liner, the convex shell
Since the liners are installed side by side, the rotation of the shell
Between the stored rod and the convex shell liner.
Raising and lowering is caused by the action of a so-called windmill, and the rough is easily broken
Can be done. Also, the outlet side of the shell body
The convex shell liner is set around the inner wall
Therefore, the efficiency of crushing work depends on the type of
Further improvement can be achieved. In addition, the concave surface
The boundary between the shell liner and the convex shell liner is uneven.
By moving the rough in the circumferential direction,
This prevents major damage to the inner peripheral surface of the shell body.
Wear.

Further, in the shell body according to the third aspect,
According to the shell body, the supply port side has a larger diameter than the discharge port side.
Frustoconical hollow cylindrical body, so it is provided on the inner wall.
Shell liner has an overall tapered inner surface
When the shell body is installed on a rod mill and
In this case, the rod for the rough stone accompanying the rotation of the shell body
Works effectively to increase the efficiency of rough crushing
be able to.

Further, in the rod mill according to the fourth aspect,
A shell according to any one of claims 1 to 3.
When the rod mill operates because the main body is installed
In addition, the efficiency of crushing rough stones is improved compared to conventional rod mills
Can be provided.

Further, the rod mill according to the fifth aspect is provided.
According to the usage, the shape of the shell body and the inside of the shell body
The shell liners of different materials and shapes.
This makes it easier to supply and input rough stones and discharge crushed stones.
Or the crushing efficiency of rough stones is greatly improved,
Overall, highly productive work can be achieved
You.

[0044]

[0045]

[0046]

[Brief description of the drawings]

FIG. 1 is a side view showing a partly broken rod mill of a first specific example.

FIG. 2 is a sectional view showing a main part of the rod mill of the first specific example.

FIG. 3 is an enlarged end view of a main part in a section AA of FIG. 2;

FIG. 4 is a side view showing the rod mill of the second specific example, partially cut away.

FIG. 5 is a sectional view showing a main part of a rod mill of a second specific example.

FIG. 6 is an enlarged end view of a main part in a BB section of FIG. 5;

FIG. 7 is a sectional view showing a main part of a rod mill of a third specific example.

FIG. 8 is an explanatory view of the arrangement of shell liners provided on the inner wall of the shell main body of the third or fourth specific example.

FIG. 9 is an end view on the line CC of FIG. 7;

FIG. 10 is an end view taken on line DD of FIG. 7;

11 is an enlarged end view of a main part in a section EE of FIG. 7;

[Explanation of symbols]

 1, 1a, 1b Shell body 10, 10 'Rod mill 11, 11a Supply port 12, 12a Discharge port 13, 13a Inner wall 14 Mounting member 17, 17a Rod 2, 2', 2a, 2b Shell liner 21, 21a Shell liner body 22 , 22 ', 22a Shell lifter 23 Groove 23', 23a Guide 24, 24 ', 24a Central 25, 25', 25a Chamfer 61, 61a Raw stone 62, 62a Crushed stone 7 Concave shell liner 71 Concave liner body 8 Convex shell liner 81 Convex liner body 9 Intermediate shell liner T, Ta Mounting part

Claims (5)

(57) [Claims] 1. A shell body , wherein a shell liner is provided on an inner wall of the shell body, and the shell liner is a concave liner body made of steel or ceramic.
Formed by providing a plurality of concave liner bodies having surfaces
Concave shell liner and steel or ceramic convex liner body
Formed by providing a plurality of convex liner bodies having a convex part in the center
Rubber shell having a shaped convex shell liner, a shell lifter and a shell liner body.
A liner having a cross-sectional shape perpendicular to a longitudinal direction of the shell lifter.
The shape is almost square, and chamfers are provided at both ends at the top.
And if the guide member is provided along the longitudinal direction
In both cases, the guide member is provided with a fixing member,
At least several shells whose outer surface is made of rubber
Rubber lifter and a rubber shell liner provided between the shell lifters
And a rubber shell liner having a body, wherein the recess is formed from the supply port side to the discharge port side of the shell body.
Planar shell liner, convex shell liner, rubber
Shell liner, convex shell liner, concave
Shell liners are arranged in this order, and the concave shell liner and the convex shell liner
Shell book characterized in that the boundary line has an uneven shape
body. 2. A shell body, wherein a shell liner is provided on an inner wall of the shell body, and the shell liner is a concave liner body made of steel or ceramic.
Formed by providing a plurality of concave liner bodies having surfaces
Concave shell liner and steel or ceramic convex liner body
Formed by providing a plurality of convex liner bodies having a convex part in the center
Rubber shell having a shaped convex shell liner, a shell lifter and a shell liner body.
A liner having a cross-sectional shape perpendicular to a longitudinal direction of the shell lifter.
The shape is almost square, and chamfers are provided at both ends at the top.
And if the guide member is provided along the longitudinal direction
In both cases, the guide member is provided with a fixing member,
At least several shells whose outer surface is made of rubber
Rubber lifter and a rubber shell liner provided between the shell lifters
And a rubber shell liner having a body, wherein the recess is formed from the supply port side to the discharge port side of the shell body.
Planar shell liner, convex shell liner, rubber
Shell liner and the convex shell liner
Between the concave shell liner and the convex shell liner.
Shell book characterized in that the boundary line has an uneven shape
body. 3. A truncated cone-shaped hollow in which the shell body has a larger diameter on the supply port side than on the discharge port side.
The shell according to claim 1 or 2, wherein the shell is a cylindrical body.
Well body. 4. A rod mill having the shell body according to claim 1, 2 or 3.
A rod mill. 5. A method of using a rod mill, wherein a rod is housed in a shell body of the rod mill according to claim 4 and a rough stone is supplied to reversibly rotate the shell body. The gemstone
Crushing between the rod and shell liner to form crushed stone
Characteristic usage of rod mill.