CN114273027B - Method for eliminating gaps of magnetic lining plates of ball milling cylinder - Google Patents
Method for eliminating gaps of magnetic lining plates of ball milling cylinder Download PDFInfo
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- CN114273027B CN114273027B CN202111461193.7A CN202111461193A CN114273027B CN 114273027 B CN114273027 B CN 114273027B CN 202111461193 A CN202111461193 A CN 202111461193A CN 114273027 B CN114273027 B CN 114273027B
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- ball mill
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
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Abstract
The invention provides a method for eliminating gaps of a magnetic lining plate of a ball mill cylinder, which is used for eliminating gaps formed between lining plates on the inner wall of the ball mill cylinder, and comprises the following steps: s1: axially dotting; s2: axially mounting; s3: adjusting the lining plate; s4: filling a limit; s5: radial dotting; s6: radial installation; the invention has the beneficial effects that: when laying the welt to ball mill barrel inner wall, through S3 step, can make original 30mm ~120 mm' S clearance, separate into multiunit 20mm ~30mm clearance, later carry out S4 step to the clearance after the separation, less clearance compares with great clearance, can make closely, firm the connection together between the welt, when ball mill barrel carries out work, can effectually guarantee the life of inside lining, need not cut the welt in the in-process of carrying out the operation moreover, can effectually improve the efficiency that the welt was installed.
Description
Technical Field
The invention relates to the technical field of ball mills, in particular to a method for eliminating gaps of a magnetic lining plate of a ball mill cylinder.
Background
The ball mill is a key device for crushing materials after the materials are crushed. This type of mill is one in which a number of steel balls are inserted into its cylinder as grinding media. It is widely used in cement, silicate products, novel building materials, refractory materials, chemical fertilizers, mineral processing of black and nonferrous metals, glass ceramics and other production industries, and carries out dry or wet grinding on various ores and other grindability materials. The ball mill is suitable for grinding various ores and other materials, is widely used in the industries of mineral separation, building materials, chemical industry and the like, and can be divided into dry type and wet type ore grinding modes. According to different ore discharging modes, the two types of the grid type and the overflow type can be realized.
With the wide use of large-scale ball mill equipment in mine and smelting industry, the lining board as a main consumption component is also continuously researched and applied, the magnetic lining board is rapidly popularized as a novel material, the comprehensive benefit is very obvious, and the common high manganese steel lining board is gradually replaced.
In the installation of the lining plates, because the number of the lining plates of the large-sized fan machine cylinder is large, deviation is easy to occur in the installation process, namely gaps can occur when the lining plates are folded axially and radially, the existing treatment method is to cut the lining plates through a toothless saw, filling is conducted on the gaps, the operation efficiency is low, the difficulty of cutting is low, and the overall production benefit is easy to influence.
Disclosure of Invention
The invention provides a method for eliminating gaps of a magnetic lining plate of a ball milling cylinder body aiming at the defects of the prior art.
The invention solves the technical problems by the following technical means:
a method for eliminating gaps of magnetic lining plates of a ball mill cylinder body is used for eliminating gaps formed between the lining plates on the inner wall of the ball mill cylinder body, and comprises the following steps:
s1: axial dotting
Dotting treatment is carried out on the inner wall of the ball mill cylinder from the end cover of the ball mill cylinder, and the dotting direction is carried out according to the axial direction of the ball mill cylinder;
s2: axially mounted
Sequentially paving the lining plates at axial dotting positions, and axially installing the lining plates into rings along the ball mill cylinder;
s3: adjusting lining board
After the lining plates are axially installed, when the gap between the head lining plates and the tail lining plates is between 30mm and 120mm, the interval between every two lining plates of the last 2-4 lining plates is enlarged to 20mm to 30mm, so that the gap is divided into a plurality of parts of gaps of 20mm to 30 mm;
s4: fill limit
Filling a plurality of gaps of 20-30 mm until the gaps are completely eliminated;
s5: radial dotting
Dotting treatment is carried out on the end cover of the ball mill cylinder, and the dotting direction is carried out according to the radial direction of the ball mill cylinder;
s6: radial mounting
And (3) paving the lining plates at radial dotting positions in sequence, radially installing the lining plates on the end covers along the ball mill cylinder, and repeating the steps S3 and S4 until the gaps are completely eliminated if the gaps appear in the installation process.
As an improvement of the technical scheme, in the S3 adjusting lining plates, after the lining plates are axially installed, when the gap between the head lining plates and the tail lining plates is between 20mm and 30mm, the gap is directly eliminated by entering into the S4 filling limit.
As an improvement of the technical scheme, in the S1 axial dotting and the S5 radial dotting, all ore pulp, rubber and the like in the lining plate area to be paved need to be eliminated until the metal body of the ball mill cylinder is exposed.
As an improvement of the technical scheme, in the S2 axial installation and S5 radial dotting, the height of the allowed highest protrusion of the inner wall surface of the ball mill cylinder is 1mm, and the maximum area of the allowed recess of the inner wall surface of the ball mill cylinder is 10mm.
As an improvement of the technical scheme, the inner wall of the ball mill cylinder body is provided with a bulge exceeding 1mm, and polishing and leveling are needed; the size of any direction of the concave part of the inner wall of the ball mill cylinder body is more than 10mm, welding repair is needed, and polishing is smooth.
As an improvement of the technical scheme, the lining plate is made of magnetic materials, and the gap filling material is made of wood strips, steel strips and the like.
The invention has the beneficial effects that:
1. when laying the welt to ball mill barrel inner wall, through S3 step, can make original 30mm ~120 mm' S clearance, separate into multiunit 20mm ~30mm clearance, later carry out S4 step to the clearance after the separation, less clearance compares with great clearance, can make closely, firm the connection together between the welt, when ball mill barrel carries out work, can effectually guarantee the life of inside lining, need not cut the welt in the in-process of carrying out the operation moreover, can effectually improve the efficiency that the welt was installed.
2. The larger gaps are separated into a plurality of groups of smaller gaps, and when the step S4 is carried out, workers can conveniently cut the filler, and the gap elimination work is conveniently and rapidly carried out, so that the overall installation efficiency is improved.
3. Through separating bigger clearance into multiunit less clearance, in the in-process of folding the welt, do not need the welt to carry out the processing of returning to the factory and doing over again, in the in-process of installing, can improve the efficiency of installation, then can improve the benefit of production.
Drawings
FIG. 1 is a flow chart of a method for eliminating gaps according to an embodiment of the invention;
fig. 2 is a schematic structural view of a connection of a liner plate and a ball mill cylinder according to an embodiment of the present invention.
In the figure: 10. a lining plate; 20. a gap; 30. ball mill cylinder.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Examples
As shown in fig. 1 and 2, the method for eliminating the gap of the magnetic lining plate of the ball mill cylinder according to the present embodiment is used for eliminating the gap 20 formed between the lining plates 10 on the inner wall of the ball mill cylinder 30, and comprises the following steps:
s1: axial dotting
Dotting treatment is carried out on the inner wall of the ball mill cylinder 30 from the end cover of the ball mill cylinder 30, and the dotting direction is carried out according to the axial direction of the ball mill cylinder 30;
s2: axially mounted
Sequentially paving the lining plates 10 at axial dotting positions, and axially installing the lining plates 10 into rings along the ball mill cylinder 30;
s3: adjusting lining board
After the lining plates 10 are axially installed, when the gap 20 between the two groups of lining plates 10 at the head and the tail is between 30mm and 120mm, the interval between every two last 2-4 lining plates 10 is enlarged to 20mm to 30mm, so that the gap 20 is divided into a plurality of parts of gaps 20 of 20mm to 30 mm;
s4: fill limit
Filling a plurality of gaps 20 with the thickness of 20mm to 30mm until the gaps 20 are completely eliminated;
s5: radial dotting
Dotting treatment is carried out on the end cover of the ball mill cylinder 30, and the dotting direction is carried out radially according to the ball mill cylinder 30;
s6: radial mounting
The lining plates 10 are sequentially paved at radial dotting positions, the lining plates 10 are radially installed on the end covers along the ball mill cylinder 30, and if gaps 20 appear in the installation process, the steps S3 and S4 are repeated until the gaps 20 are completely eliminated.
In this embodiment, the width of the lining board 10 is 190mm, when the lining board 10 is paved on the inner wall of the ball mill cylinder 30, the original gap 20 with the thickness of 30mm to 120mm can be separated into a plurality of groups of gaps 20 with the thickness of 20mm to 30mm through the step S3, then the separated gaps 20 are subjected to the step S4, and compared with the larger gaps 20, the smaller gaps 20 can enable the lining boards 10 to be tightly and firmly connected together, when the ball mill cylinder 30 works, the service life of the lining board can be effectively ensured, and in addition, the lining board 10 does not need to be cut in the process of operation, and the efficiency of installing the lining board can be effectively improved;
the larger gaps 20 are separated into a plurality of groups of smaller gaps 20, and when the step S4 is carried out, workers can conveniently cut the filling materials, and the gap 20 can be conveniently and rapidly eliminated, so that the overall installation efficiency is improved;
by separating the larger gaps 20 into a plurality of groups of smaller gaps 20, the process of folding the lining board 10 does not need to be carried out with factory-returning reworking treatment on the lining board 10, and the installation efficiency and the production benefit can be improved in the installation process.
In this embodiment, the following technical requirements are required to be operated to improve the installation efficiency and the installation quality of the lining boards 10, and in the process of installing the lining boards 10, the distance between two groups of lining boards 10 can be kept between 1mm and 2mm, and meanwhile, a large hammer can be used for knocking the lining boards 10;
as shown in fig. 2, in the S3 adjustment liner, after the liner 10 is axially installed, when the gap 20 between the first and the last two groups of liners 10 is between 20mm and 30mm, the liner directly enters into the S4 filling limit, and the gap 20 is eliminated, so as to improve the working efficiency.
As shown in fig. 2, in the axial dotting step S1 and the radial dotting step S5, all the pulp, rubber, etc. in the area where the lining board 10 is to be laid need to be eliminated until the metal body of the ball mill cylinder 30 is exposed, when the lining board 10 is laid, the protrusion of the lining board 10 caused by the pulp, rubber, etc. can be prevented, and in the later use process, the falling phenomenon of the lining board 10 can be prevented.
As shown in fig. 2, in the S2 axial installation and S5 radial dotting, the height of the highest protrusion allowed by the inner wall surface of the ball mill cylinder 30 is 1mm, and the maximum area allowed by the recess of the inner wall surface of the ball mill cylinder 30 is 10 x 10mm.
As shown in fig. 2, the inner wall of the ball mill cylinder 30 has protrusions exceeding 1mm, and polishing and leveling are required; the size of any direction of the concave part of the inner wall of the ball mill cylinder 30 is more than 10mm, welding repair is needed, and polishing is smooth.
As shown in fig. 2, the lining board 10 is made of a magnetic material, the gap 20 is made of wood strips, steel bars, etc., preferably wood strips, and the wood strips are used as the filling material, so that the processing of workers can be facilitated during the cutting process, and the installation efficiency can be improved.
It is noted that relational terms such as first and second, and the like, if any, are 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. Moreover, 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. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (1)
1. A method for eliminating gaps of magnetic lining plates of ball mill barrels, which is used for eliminating gaps (20) formed between lining plates (10) on the inner wall of a ball mill barrel (30), and is characterized in that: the method comprises the following steps:
s1: axial dotting
Dotting treatment is carried out on the inner wall of the ball mill cylinder (30) from the end cover of the ball mill cylinder (30), and the dotting direction is carried out axially according to the ball mill cylinder (30);
s2: axially mounted
Sequentially paving lining plates (10) at axial dotting positions, and axially installing the lining plates (10) into rings along a ball mill cylinder (30);
s3: adjusting lining board
After the lining plates (10) are axially installed, when the gap (20) between the first lining plates (10) and the second lining plates (10) is between 30mm and 120mm, the spacing between every two last 2-4 lining plates (10) is enlarged to 20mm to 30mm, so that the gap (20) is divided into a plurality of gaps (20) of 20mm to 30 mm;
s4: fill limit
Filling a plurality of gaps (20) with the size of 20 mm-30 mm until the gaps (20) are completely eliminated;
s5: radial dotting
Dotting treatment is carried out on the end cover of the ball mill cylinder (30), and the dotting direction is carried out radially according to the ball mill cylinder (30);
s6: radial mounting
Sequentially paving lining plates (10) at radial dotting positions, radially installing the lining plates (10) on an end cover along a ball mill cylinder (30), and repeating S3 and S4 until the gaps (20) are completely eliminated if the gaps (20) appear in the installation process;
in the S3 adjusting lining plates, after the lining plates (10) are axially installed, when a gap (20) between the first lining plate and the second lining plate (10) is 20 mm-30 mm, the gap (20) is eliminated by directly entering into S4 filling limit; in the S1 axial dotting and the S5 radial dotting, all ore pulp and rubber in the area of the lining plate (10) to be paved need to be eliminated until the metal body of the ball mill cylinder (30) is exposed;
in the S2 axial installation and S5 radial dotting, the height of the highest protrusion allowed by the inner wall surface of the ball mill cylinder (30) is 1mm, and the maximum area allowed by the concave depression of the inner wall surface of the ball mill cylinder (30) is 10mm; the inner wall of the ball mill cylinder (30) is provided with a bulge exceeding 1mm, and polishing and leveling are required; the size of the concave part of the inner wall of the ball mill cylinder (30) in any direction is more than 10mm, welding repair is needed, and polishing is smooth; the lining board (10) is made of magnetic materials, and the gaps (20) are filled with wood strips or steel strips.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111461193.7A CN114273027B (en) | 2021-12-01 | 2021-12-01 | Method for eliminating gaps of magnetic lining plates of ball milling cylinder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111461193.7A CN114273027B (en) | 2021-12-01 | 2021-12-01 | Method for eliminating gaps of magnetic lining plates of ball milling cylinder |
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| CN114273027A CN114273027A (en) | 2022-04-05 |
| CN114273027B true CN114273027B (en) | 2023-06-13 |
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