CN214021179U - Grid type ball mill ore discharge lining - Google Patents
Grid type ball mill ore discharge lining Download PDFInfo
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- CN214021179U CN214021179U CN202022486330.XU CN202022486330U CN214021179U CN 214021179 U CN214021179 U CN 214021179U CN 202022486330 U CN202022486330 U CN 202022486330U CN 214021179 U CN214021179 U CN 214021179U
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Abstract
The utility model belongs to the technical field of ore grinding equipment, especially, relate to a grate bowl mill ore discharge bush, its characterized in that is including setting up the barrel in grate bowl mill quill shaft, the end cover that is connected with this barrel one end, with the wear-resisting circle of plastic that the barrel other end is connected, through the central disk that several liner plate bridges along circumference evenly distributed are connected with this wear-resisting circle of plastic. The utility model discloses a grate type ball mill bushing that arranges combines grate type ball mill theory of operation and structural characteristic, through at the quill shaft in-built one kind grate type ball mill bushing that arranges, has solved the sealed problem of quill shaft and the fastening problem of grid plate.
Description
Technical Field
The utility model belongs to the technical field of ore grinding equipment, especially, relate to a grate type ball mill ore discharge bush.
Background
Ball mills have been known as conventional grinding equipment for over 100 years. It is used as an important device for refining and pulverizing solid materials, and is widely applied to the departments of metallurgy, chemical industry, cement, ceramics, building, electric power, medicine, national defense industry and the like. Particularly, in the mineral separation department in the metallurgical industry, the ore grinding operation is of great importance. Since the processing capacity of the ball mill and the particle size after grinding have significant influence on the efficiency of subsequent operation and the technical and economic indexes of the whole production flow, research on the ball mill has been widely concerned and highly regarded at home and abroad.
The lattice type ball mill is mainly used for the first-stage grinding and grading operation of a concentrating mill, and is characterized in that the ore is forcibly discharged, so that higher processing capacity can be obtained.
The grinding operation is carried out in the simple body of the ball mill, after the grinding medium of the cylinder body is brought to a certain height along with the rotation of the cylinder body, the medium falls down due to the dead weight, and the ore loaded in the cylinder body is subjected to the violent impact force of the medium; on the other hand, as the grinding media revolve and rotate in the cylinder body along the axis of the cylinder body, extrusion and grinding stripping forces to the ores are generated between the grinding media and a contact area between the grinding media and the cylinder body, so that the ores are ground, and meanwhile, the grinding media can abrade and impact the ball-milling lining plate.
The traditional lattice type ball mill has the defects that the ore discharging lining falls off and the hollow shaft is abraded due to the structural design of the ore discharging lining and the lattice plate, so that the service life of the ball mill is shortened, the problems of forced stopping and overhauling of production and the like are caused, and the normal production of a concentrating mill is seriously influenced.
Disclosure of Invention
The utility model aims at providing a grate type ball mill ore discharge bush overcomes not enough in the grate type ball mill mechanical design, and simple effectual damage that prevents to grind the medium to quill shaft, check welt, ore discharge bush isotructure.
The purpose of the utility model is realized by the following technical scheme:
the utility model relates to a discharge lining of a grate ball mill, which is characterized by comprising a cylinder body arranged in a hollow shaft of the grate ball mill, an end cover connected with one end of the cylinder body, a shaping wear-resistant ring connected with the other end of the cylinder body, and a central disc connected with the shaping wear-resistant ring through a plurality of lining plate bridges uniformly distributed along the circumference,
the end cover is connected with a hollow shaft gland of the lattice type ball mill through a bolt,
the lining plate bridge is hermetically connected with the end cover of the lattice type ball mill through a lining plate gland and a lattice plate pressing strip, the lining plate gland is embedded into the concave angle of the shaping wear-resisting ring,
the central disc is fixedly connected with the end cover of the lattice type ball mill and the cylinder of the lattice type ball mill through the lattice plate.
The periphery of the joint of the end of the cylinder body and the end cover is provided with a sealing sleeve, the sealing sleeve is embedded in the hollow shaft of the lattice type ball mill, and the inner slope angle of the sealing sleeve is 60 degrees.
And resin sealing is arranged between the cylinder and the hollow shaft of the lattice type ball mill.
The end cover is circular, a plurality of bolt holes are uniformly distributed, and the end cover is in threaded connection with the gland of the hollow shaft of the lattice type ball mill through bolts.
The cylinder body is in a hollow round table shape, the central taper angle is 5.91 degrees, and the chamfer angle at the joint of the cylinder body and the shaping wear-resistant ring is 31.72 multiplied by 45.00 degrees.
The outer surface of the reshaping wear-resistant ring is connected with the lining bridge at an angle of 173.00 degrees, the inner surface of the reshaping wear-resistant ring is connected with the lining bridge at an angle of 148.00 degrees, and the chamfer angle of the joint of the reshaping wear-resistant ring and the lining gland is 19.24 multiplied by 40.17 degrees.
The number of the liner plate bridges is 6.
The ore removal end of the outer surface of the central disc is arc-shaped, the curvature radius R is 1100mm, the arc angle is 35.86 degrees, the groove of the ore feeding end of the outer surface is conical, the central angle is 22.63 degrees, and the inner circle radius R is 100 mm.
The inner surface of the reshaping wear-resistant ring is the same as the tangent direction of the intrados of the central disc.
The utility model has the advantages that:
the utility model discloses a grate type ball mill bushing that arranges combines grate type ball mill theory of operation and structural characteristic, through at the quill shaft in-built one kind grate type ball mill bushing that arranges, has solved the sealed problem of quill shaft and the fastening problem of grid plate.
Drawings
Fig. 1 is a view of the overall assembly position of the present invention.
Fig. 2 is a schematic structural diagram of the present invention.
Fig. 3 is a side view of the present invention in fig. 2.
Detailed Description
The following further describes the embodiments of the present invention with reference to the drawings.
As shown in figures 1-3, the utility model discloses a grid type ball mill ore discharge bush, which is characterized in that the bush comprises a cylinder 1-3 arranged in a hollow shaft 3 of the grid type ball mill, an end cover 1-1 connected with one end of the cylinder 1-3, a shaping wear-resistant ring 1-4 connected with the other end of the cylinder 1-3, a central disc 1-6 connected with the shaping wear-resistant ring 1-4 through a plurality of lining plate bridges 1-5 evenly distributed along the circumference,
the end cover 1-1 is connected with a hollow shaft gland 2 of the lattice type ball mill through bolts,
the lining plate bridges 1 to 5 are hermetically connected with the lattice type ball mill end cover 5 through lining plate gland covers 7 and lattice plate press strips 8, the lining plate gland covers 7 are embedded into the concave angles of the shaping wear-resisting rings 1 to 4,
the central discs 1-6 are fixedly connected with the lattice type ball mill end cover 5 and the lattice type ball mill cylinder 9 through the lattice plate 6.
A sealing sleeve 1-2 is arranged on the periphery of the joint of the end of the cylinder 1-3 and the end cover 1-1, the sealing sleeve 1-2 is embedded in the hollow shaft 3 of the lattice type ball mill, and the inner slope angle of the sealing sleeve 1-2 is 60 degrees.
And a resin seal 4 is arranged between the cylinder bodies 1-3 and the hollow shaft 3 of the lattice type ball mill.
The end cover 1-1 is circular, a plurality of bolt holes are uniformly distributed, and the end cover is in threaded connection with the hollow shaft gland 2 of the lattice type ball mill through bolts.
The cylinder body 1-3 is in a hollow round table shape, the central taper angle is 5.91 degrees, and the chamfer angle at the joint of the cylinder body 1-3 and the shaping wear-resistant ring 1-4 is 31.72 multiplied by 45.00 degrees.
The connection angle between the outer surface of the shaping wear-resistant ring 1-4 and the bushing bridge 1-5 is 173.00 degrees, the connection angle between the inner surface of the shaping wear-resistant ring 1-4 and the bushing bridge 1-5 is 148.00 degrees, and the chamfer angle at the connection position of the shaping wear-resistant ring 1-4 and the lining plate gland 7 is 19.24 multiplied by 40.17 degrees.
The number of the liner plate bridges 1-5 is 6.
The ore removal end of the outer surface of the central disc 1-6 is arc-shaped, the curvature radius R is 1100mm, the arc angle is 35.86 degrees, the groove of the ore feeding end of the outer surface is conical, the central angle is 22.63 degrees, and the inner circle radius R is 100 mm.
The inner surface of the shaping wear-resistant ring 1-4 is the same as the tangent direction of the intrados of the central disc 1-6.
Examples
The discharge bushing of the lattice type ball mill 1 is characterized in that an end cover 1-1 is connected with a hollow shaft gland 2 of the lattice type ball mill through a bolt; the sealing sleeve 1-2 is embedded into a hollow shaft 3 of the lattice type ball mill; resin is filled between the lining plate cylinder bodies 1-3 and the hollow shaft 3 of the lattice type ball mill for sealing 4; the lining plate bridges 1-5 are tightly and fixedly connected with the end cover 5 of the lattice type ball mill through a lining plate gland 7 and a lattice plate pressing strip 8; the central discs 1-6 are fastened and connected with the lattice type ball mill end cover 5 and the lattice type ball mill cylinder 9 through the lattice plate 6.
The end cover 1-1 is circular, 24 bolt holes with the diameter of 40mm can be uniformly distributed, the end cover is fixedly connected with a hollow shaft gland 2 of the lattice type ball mill through M36 bolts, and the roughness of the outer surface of the processed end cover is 6.3, and the roughness of the inner surface of the processed end cover is 3.2;
the seal sleeve 1-2 is processed with surface roughness of 3.2 and an inner slope angle of 60 degrees, is embedded into the hollow shaft 3 and is fastened and sealed;
the cylinder body 1-3 is in a hollow round table shape, the central taper angle is 5.91 degrees, the roughness of the outer surface of the cylinder body 1-3 is 25 degrees, the space between the cylinder body 1-3 and the hollow shaft 3 is filled with resin for sealing 4, the roughness of the inner surface of the cylinder body 1-3 is 12.5 degrees, and the chamfer angle at the joint of the cylinder body 1-3 and the shaping wear-resistant ring 1-4 is 31.72 multiplied by 45.00 degrees;
1-4 of the shaping wear-resistant ring, 6.3 of the roughness of the outer surface, 1-4 of the shaping wear-resistant ring embedded in the lining plate gland 7, 19.24 multiplied by 40.17 of a chamfer angle at a joint, 12.5 of the roughness of the inner surface of the shaping wear-resistant ring 1-4, 173.00 of the connection angle of the outer surface and the lining plate bridge 1-5 and 148.00 of the connection angle of the inner surface and the lining plate bridge 1-5;
6 lining plate bridges are uniformly distributed, and the roughness of the outer surface is 6.3;
1-6 of the central disc, 6.3 of the roughness of the outer surface and 12.5 of the roughness of the inner surface, wherein the ore removal end of the outer surface is arc-shaped, the curvature radius R is 1100mm, the arc angle is 35.96 degrees, the groove of the ore feeding end of the outer surface is conical, the central angle is 22.63 degrees, and the radius R of the inner circle is 100 mm;
the inner surface of the shaping wear-resistant ring 1-4 is the same as the tangent direction of the intrados of the central disc 1-6 to form an ore discharge channel, and the shaping wear-resistant ring 1-4 plays a role in shaping the channel and resisting the wear of the medium flowing in the external tangent direction; the central discs 1-6 play a role in preventing ball milling media from directly impacting the discharge lining of the lattice type ball mill;
the discharging bushing of the lattice type ball mill is fixed in a hollow shaft 3 of the lattice type ball mill and operates along with the ball milling operation, materials in the ball mill pass through a lattice plate 6 in the arrow direction, pass through a channel formed between a bushing plate bridge 1-5 and a central disc 1-6, pass through a shaping wear-resistant ring 1-4 and then are discharged out of the ball mill through a cylinder 1-3.
The utility model discloses a grate ball mill bushing of quarrying combines grate ball mill theory of operation and structural characteristic, arranges the bushing through inlaying a grate ball mill in grate ball mill quill shaft 3, has solved the sealed problem of grate ball mill quill shaft 3 and the 6 fastening problems of grate plate.
Claims (9)
1. A discharge lining of a lattice type ball mill is characterized by comprising a cylinder body arranged in a hollow shaft of the lattice type ball mill, an end cover connected with one end of the cylinder body, a shaping wear-resistant ring connected with the other end of the cylinder body, a central disc connected with the shaping wear-resistant ring through a plurality of lining plates uniformly distributed along the circumference,
the end cover is connected with a hollow shaft gland of the lattice type ball mill through a bolt,
the lining plate bridge is hermetically connected with the end cover of the lattice type ball mill through a lining plate gland and a lattice plate pressing strip, the lining plate gland is embedded into the concave angle of the shaping wear-resisting ring,
the central disc is fixedly connected with the end cover of the lattice type ball mill and the cylinder of the lattice type ball mill through the lattice plate.
2. The discharge liner of a grate-type ball mill as set forth in claim 1, wherein a sealing sleeve is provided at the periphery of the joint of said cylinder head and said end cap, said sealing sleeve being embedded in a hollow shaft of said grate-type ball mill, the inner slope angle of said sealing sleeve being 60 °.
3. The discharge liner of a grate-type ball mill as set forth in claim 1, wherein a resin seal is provided between said cylinder and the hollow shaft of the grate-type ball mill.
4. The discharge bushing of a grate-type ball mill as recited in claim 1, wherein said end cap is circular, has a plurality of bolt holes uniformly distributed therein, and is screw-coupled to said gland of the hollow shaft of the grate-type ball mill through bolts.
5. The discharge liner of a grate-type ball mill as set forth in claim 1, wherein said barrel is in the form of a hollow circular truncated cone having a center cone angle of 5.91 °, and the chamfer angle at the junction of said barrel and said truing wear ring is 31.72 x 45.00 °.
6. The discharge liner of a grate-type ball mill as set forth in claim 1, wherein the outer surface of said truing wear ring is connected to said liner bridge at an angle of 173.00 °, the inner surface of said truing wear ring is connected to said liner bridge at an angle of 148.00 °, and the chamfer angle at the connection of said truing wear ring and said liner gland is 19.24 x 40.17 °.
7. The discharge liner for a grate ball mill as set forth in claim 1, wherein said plurality of liner bridges are 6.
8. The discharge liner of a lattice type ball mill as set forth in claim 1, wherein the ore discharge end of the outer surface of the central disk is formed in an arc shape having a radius of curvature R =1100mm, the arc angle is 35.86 °, the groove of the ore feed end of the outer surface is formed in a tapered shape having a center angle of 22.63 °, and the radius of the inner circle R =100 mm.
9. The discharge liner of a grate-type ball mill as set forth in claim 1, wherein said inner surface of said reforming wear ring is in the same direction as the tangent of the intrados of said center plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022486330.XU CN214021179U (en) | 2020-11-02 | 2020-11-02 | Grid type ball mill ore discharge lining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022486330.XU CN214021179U (en) | 2020-11-02 | 2020-11-02 | Grid type ball mill ore discharge lining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214021179U true CN214021179U (en) | 2021-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022486330.XU Active CN214021179U (en) | 2020-11-02 | 2020-11-02 | Grid type ball mill ore discharge lining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214021179U (en) |
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2020
- 2020-11-02 CN CN202022486330.XU patent/CN214021179U/en active Active
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