CN111514988B - Raymond mill grinding roller and manufacturing method thereof - Google Patents
Raymond mill grinding roller and manufacturing method thereof Download PDFInfo
- Publication number
- CN111514988B CN111514988B CN202010352574.0A CN202010352574A CN111514988B CN 111514988 B CN111514988 B CN 111514988B CN 202010352574 A CN202010352574 A CN 202010352574A CN 111514988 B CN111514988 B CN 111514988B
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- Prior art keywords
- grinding roller
- end cover
- wear
- boss
- resistant
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
- B02C15/08—Mills with balls or rollers centrifugally forced against the inner surface of a ring, the balls or rollers of which are driven by a centrally arranged member
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
- B02C15/004—Shape or construction of rollers or balls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
- B22F7/08—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools with one or more parts not made from powder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y80/00—Products made by additive manufacturing
-
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Composite Materials (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention discloses a grinding roller of a Raymond mill and a manufacturing method thereof, comprising a grinding roller body, wherein a wear-resistant alloy layer is arranged on the surface of the grinding roller body, and wear-resistant wires are wound on one side, which is clung to the grinding roller body, of the wear-resistant alloy layer. According to the grinding roller, the wear-resistant alloy layer is arranged on the surface of the grinding roller body and printed on the surfaces of the grinding roller body and the wear-resistant wires through 3D, so that the hardness and wear resistance of the outer surface layer of the grinding roller can be effectively improved, the service life of the grinding roller is further prolonged, and meanwhile, when the wear-resistant alloy layer is worn, the grinding roller can be repaired and put into use again through adopting the 3D printing of the wear-resistant alloy layer, and the maintenance cost in the maintenance process is further reduced; secondly, through divide into grinding roller, first end cover and second end cover with the grinding roller body, make the inside of grinding roller have the cavity, for among the prior art integrated into one piece's grinding roller, effectual self weight of reducing the grinding roller reduces the intensity of labour of grinding roller when installation, dismantlement.
Description
Technical Field
The invention relates to the technical field of wear-resistant parts of grinding equipment, in particular to a grinding roller of a Raymond mill and a manufacturing method thereof.
Background
At present, a Raymond mill is a typical powder making device, wherein a grinding roller assembly is hung on a grinding roller hanger through a cross arm shaft, and a grinding roller is tightly rolled on a grinding ring under the action of centrifugal force and rotates around a self shaft while rolling on the inner circle of the grinding ring. The grinding roller continuously extrudes and impacts the material particles between the grinding roller and the grinding ring in the rolling process, so that the material is thinned. The outer surface layer of the grinding roller is required to have high hardness and wear resistance so as to improve the grinding life. The inner metal of the grinding roller is connected to the cross arm shaft through a bearing, and high toughness, strength and impact resistance are required. When the toughness and strength of the grinding roller are insufficient, the breakage phenomenon is easy to occur, the whole equipment is damaged, and huge loss is caused.
However, the existing grinding roller is made of high manganese or high chromium, so that the service life is short, the service efficiency is low, the self weight is large and is generally about 100 kg, the manufacturing cost is high, the repairing is difficult, the loading and unloading are difficult and the labor intensity is high during loading and unloading.
Therefore, how to provide a grinding roller of a Raymond mill, which has high wear resistance, reduces the maintenance cost in the maintenance process, achieves the effects of reducing the cost and improving the efficiency and prolongs the service life of the product, is a problem which needs to be solved by the technicians in the field.
Disclosure of Invention
In view of the above, the invention provides the grinding roller of the Raymond mill, which has high wear resistance, reduces the maintenance cost in the maintenance process, achieves the purposes of reducing the cost and enhancing the efficiency, and further improves the service life of the product.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
on one hand, the invention provides a grinding roller of a Raymond mill, which comprises a grinding roller body, wherein a wear-resistant alloy layer is arranged on the surface of the grinding roller body, and wear-resistant wires are further wound on one side, which is clung to the grinding roller body, of the wear-resistant alloy layer.
Further, the wear-resistant wire is spirally wound on the surface of the grinding roller body, and the screw pitch is 2mm-7mm.
Further, the grinding roller body comprises a grinding roller cylinder, a first end cover and a second end cover, and the first end cover and the second end cover are respectively and fixedly connected with two ends of the grinding roller cylinder.
Further, a first conical shaft hole matched with the conical shaft is formed in the center of the first end cover, and a second conical shaft hole matched with the conical shaft is formed in the center of the second end cover.
Further, the two ends of the grinding roller cylinder are respectively provided with a first boss for installing the first end cover and a second boss for installing the second end cover.
Further, a plurality of through holes which are arranged in an array mode are formed in the side walls, corresponding to the first boss and the second boss, of the grinding roller.
Further, the side walls of the first end cover and the second end cover are respectively provided with a plurality of blind holes, and the blind holes are in one-to-one correspondence with the through holes.
Further, the thickness of the first end cover is equal to the height of the first boss side wall, and the thickness of the second end cover is equal to the height of the second boss side wall.
On the other hand, the invention also provides a manufacturing method of the grinding roller of the Raymond mill, which specifically comprises the following steps:
manufacturing a grinding roller, namely machining a first boss and a second boss at two ends of a cylindrical steel pipe respectively;
manufacturing a first end cover and a second end cover, wherein the outer diameters of the first end cover and the second end cover are matched with the diameters of a first boss and a second boss of a grinding roller cylinder, and a first conical shaft hole and a second conical shaft hole are machined in the centers of the first end cover and the second end cover through a drilling machine, so that after the first end cover and the second end cover are arranged on the first boss and the second boss, the inner hole surface of the first conical shaft hole and the inner hole surface of the second conical shaft hole are positioned on the same conical surface;
step three: welding a first end cover and a second end cover on a first boss and a second boss at two ends of a grinding roller cylinder respectively to form a grinding roller body;
fourthly, winding wear-resistant wires on the outer surface of the grinding roller body, wherein the wear-resistant wires are spiral;
and fifthly, printing the wear-resistant alloy on the surfaces of the grinding roller body and the wear-resistant wires through 3D printing to form a wear-resistant alloy layer.
Compared with the prior art, the invention discloses the grinding roller of the Raymond mill, which has the following beneficial effects:
the wear-resistant alloy layer is arranged on the surface of the grinding roller body and printed on the surfaces of the grinding roller body and the wear-resistant wires through 3D, so that the hardness and wear resistance of the outer surface layer of the grinding roller can be effectively improved, the service life of the grinding roller is further prolonged, and meanwhile, when the wear-resistant alloy layer is worn, the grinding roller can be repaired and put into use again through 3D printing of the wear-resistant alloy layer, and the maintenance cost in the maintenance process is further reduced; the wear resistance of the wear-resistant alloy layer of the grinding roller is further improved by winding wear-resistant wires with a certain pitch on one side of the wear-resistant alloy layer, which is close to the grinding roller body; secondly, through divide into grinding roller, first end cover and second end cover with the grinding roller body, make the inside of grinding roller have the cavity, for among the prior art integrated into one piece's grinding roller, effectual self weight of reducing the grinding roller reduces the intensity of labour of grinding roller when installation, dismantlement.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram showing an exploded structure of a grinding roller of a Raymond mill;
FIG. 2 is a schematic view of an exploded view of the grinding roller body provided by the present invention;
FIG. 3 is a schematic cross-sectional view of a grinding roller according to the present invention;
FIG. 4 is a schematic cross-sectional view of a grinding roller cylinder of the grinding roller body according to the present invention;
FIG. 5 is a schematic cross-sectional view of a first end cap according to the present invention;
fig. 6 is a schematic cross-sectional view of a second end cap according to the present invention.
Wherein: 1 is a grinding roller body; 11 is a grinding roller; 111 is a first boss; 112 is a second boss; 113 is a through hole; 12 is a first end cap; 13 is a second end cap; 2 is a wear-resistant alloy layer; 3 is wear-resistant wire; 4 is a first conical shaft hole; 5 is a second conical shaft hole; 6 is a blind hole.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. 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.
On the one hand, referring to fig. 1-6, the embodiment of the invention discloses a grinding roller of a Raymond mill, which comprises a grinding roller body 1, wherein a wear-resistant alloy layer 2 is arranged on the surface of the grinding roller body 1, and a wear-resistant wire 3 is further wound on one side, which is clung to the grinding roller body 1, of the wear-resistant alloy layer 2. In this embodiment, the material of the grinding roller body 1 is 45# steel, the grinding roller body 1 is firstly wound with the wear-resistant wire 3, the wear-resistant wire 3 adopts high hardness wear-resistant wire with HRC of 65-68, in this embodiment, HD65 wear-resistant welding wire is specifically used, the wear-resistant wire 3 is spirally wound on the surface of the grinding roller body 1, the pitch is 2mm-7mm, preferably 5mm, then the wear-resistant alloy layer 2 is printed on the surfaces of the grinding roller body 1 and the wear-resistant wire 3 through 3D, the HRC of the wear-resistant alloy layer 2 is 65-68, and in this embodiment, the thickness of the wear-resistant alloy layer 2 is specifically 6mm.
Specifically, the grinding roller body comprises a grinding roller 11, a first end cover 12 and a second end cover 13, and the first end cover 11 and the second end cover 12 are fixedly connected with two ends of the grinding roller 11 respectively. In this embodiment, the first end cover 11 and the second end cover 12 are fixedly connected to two ends of the grinding roller 11 by welding.
Specifically, the first end cap 12 is provided at the center thereof with a first conical shaft hole 4 fitted with a conical shaft, and the second end cap 13 is provided at the center thereof with a second conical shaft hole 5 fitted with a conical shaft.
Specifically, the grinding roller 11 is provided at both ends thereof with a first boss 111 for mounting the first end cap 12 and a second boss 112 for mounting the second end cap 13, respectively.
Wherein, after the first end cover 12 and the second end cover 13 are installed on the first boss 111 and the second boss 112 at two ends of the grinding roller 11, the inner hole surface of the first conical shaft hole 4 and the inner hole surface of the second conical shaft hole 5 are positioned on the same conical surface for installing the conical shaft.
Specifically, the grinding roller 11 is provided with a plurality of through holes 113 arranged in an array on the side walls corresponding to the first boss 111 and the second boss 112.
Specifically, the side walls of the first end cover 12 and the second end cover 13 are respectively provided with a plurality of blind holes 6, the blind holes 6 are in one-to-one correspondence with the through holes 113, jackscrews can be utilized to penetrate through the through holes 113 and embed jackscrew heads into the blind holes 6, the first end cover 12 and the second end cover 13 are further fixed with the grinding roller 11, and the heads of the wear-resistant wires 3 can be inserted into holes formed by the through holes 113 and the blind holes 6 to serve as starting points of the wear-resistant wires 3, so that the wear-resistant wires 3 can be conveniently wound on the surface of the grinding roller body 1.
Specifically, the thickness of the first end cap 12 is equal to the height of the side wall of the first boss 111, and the thickness of the second end cap 13 is equal to the height of the side wall of the second boss 112.
On the other hand, the invention also provides a manufacturing method of the grinding roller of the Raymond mill, which specifically comprises the following steps:
manufacturing a grinding roller, namely machining a first boss and a second boss at two ends of a cylindrical steel pipe respectively;
manufacturing a first end cover and a second end cover, wherein the outer diameters of the first end cover and the second end cover are matched with the diameters of a first boss and a second boss of a grinding roller cylinder, and a first conical shaft hole and a second conical shaft hole are machined in the centers of the first end cover and the second end cover through a drilling machine, so that after the first end cover and the second end cover are arranged on the first boss and the second boss, the inner hole surface of the first conical shaft hole and the inner hole surface of the second conical shaft hole are positioned on the same conical surface;
step three: welding a first end cover and a second end cover on a first boss and a second boss at two ends of a grinding roller cylinder respectively to form a grinding roller body;
winding wear-resistant wires on the outer surface of the grinding roller body, wherein the wear-resistant wires are spiral, and the screw pitch is 2mm-7mm, preferably 5mm;
and fifthly, printing the wear-resistant alloy on the surfaces of the grinding roller body and the wear-resistant wires through 3D printing to form a wear-resistant alloy layer.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (4)
1. The grinding roller of the Raymond mill is characterized by comprising a grinding roller body (1), wherein a wear-resistant alloy layer (2) is arranged on the surface of the grinding roller body (1), and wear-resistant wires (3) are wound on one side, which is tightly attached to the grinding roller body (1), of the wear-resistant alloy layer (2); the wear-resistant wires (3) are spirally wound on the surface of the grinding roller body (1), and wear-resistant alloy layers are printed on the surfaces of the grinding roller body and the wear-resistant wires through 3D;
the grinding roller body (1) comprises a grinding roller cylinder (11), a first end cover (12) and a second end cover (13), wherein the first end cover (12) and the second end cover (13) are fixedly connected with two ends of the grinding roller cylinder (11) respectively;
the two ends of the grinding roller cylinder (11) are respectively provided with a first boss (111) for installing the first end cover (12) and a second boss (112) for installing the second end cover (13);
a plurality of through holes (113) which are arranged in an array mode are arranged on the side walls of the grinding roller (11) corresponding to the first boss (111) and the second boss (112);
the side walls of the first end cover (12) and the second end cover (13) are respectively provided with a plurality of blind holes (6), and the blind holes (6) are in one-to-one correspondence with the through holes (113); the head of the wear-resistant wire (3) is inserted into a hole formed by the through hole (113) and the blind hole (6) to serve as a starting point of the wear-resistant wire (3), so that the wear-resistant wire (3) is conveniently wound on the surface of the grinding roller body (1);
the center of the first end cover (12) is provided with a first conical shaft hole (4) matched with the conical shaft, and the center of the second end cover (13) is provided with a second conical shaft hole (5) matched with the conical shaft.
2. A grinding roller of a Raymond mill according to claim 1, characterized in that the pitch of the wear wire (3) is 2-7 mm.
3. The grinding roller of a Raymond mill according to claim 1, wherein the thickness of the first end cap (12) is equal to the height of the side wall of the first boss (111), and the thickness of the second end cap (13) is equal to the height of the side wall of the second boss (112).
4. A method for manufacturing a grinding roller of a raymond mill, which is characterized in that the grinding roller of the raymond mill is any one of claims 1-3, and specifically comprises the following steps:
step one: manufacturing a grinding roller, namely machining a first boss and a second boss at two ends of a cylindrical steel pipe respectively;
step two: manufacturing a first end cover and a second end cover, wherein the outer diameters of the first end cover and the second end cover are matched with the calibers of a first boss and a second boss of a grinding roller, and a first conical shaft hole and a second conical shaft hole are machined in the centers of the first end cover and the second end cover through a drilling machine, so that after the first end cover and the second end cover are arranged on the first boss and the second boss, the inner hole surface of the first conical shaft hole and the inner hole surface of the second conical shaft hole are positioned on the same conical surface;
step three: welding a first end cover and a second end cover on a first boss and a second boss at two ends of a grinding roller cylinder respectively to form a grinding roller body;
step four: the outer surface of the grinding roller body is wound with wear-resistant wires which are spiral;
step five: and forming a wear-resistant alloy layer on the surfaces of the grinding roller body and the wear-resistant wires through 3D printing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010352574.0A CN111514988B (en) | 2020-04-26 | 2020-04-26 | Raymond mill grinding roller and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010352574.0A CN111514988B (en) | 2020-04-26 | 2020-04-26 | Raymond mill grinding roller and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111514988A CN111514988A (en) | 2020-08-11 |
| CN111514988B true CN111514988B (en) | 2023-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010352574.0A Active CN111514988B (en) | 2020-04-26 | 2020-04-26 | Raymond mill grinding roller and manufacturing method thereof |
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| CN (1) | CN111514988B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2351199Y (en) * | 1998-09-13 | 1999-12-01 | 王应昂 | Water-cooling roller device for flour mill |
| CN2451224Y (en) * | 2000-09-28 | 2001-10-03 | 杨志俊 | Mill roller |
| CN201441929U (en) * | 2009-07-15 | 2010-04-28 | 济南万方炭素有限责任公司 | Composite wear-resistant grinding roller |
| CN102389851A (en) * | 2011-11-15 | 2012-03-28 | 吉林大学 | High toughness bionic wear resistant grinding roller |
| CN202387508U (en) * | 2011-12-07 | 2012-08-22 | 广州乾鼎焊接科技有限公司 | Wear-resistant grinding roll for vertical coal grinder |
| CN202460715U (en) * | 2012-03-02 | 2012-10-03 | 李晓明 | Grinding roller for intermediate-speed mill |
| CN202590853U (en) * | 2012-03-09 | 2012-12-12 | 甘肃农业大学 | Grinding roller |
| CN205667873U (en) * | 2016-06-06 | 2016-11-02 | 方大特钢科技股份有限公司 | Medium-speed pulverizer grinding roller seal combination mechanism |
| CN107236952A (en) * | 2017-06-15 | 2017-10-10 | 宝志坚 | A kind of laser melting coating nanometer metal ceramic grinding roller |
| CN208098214U (en) * | 2017-12-22 | 2018-11-16 | 江苏双发机械有限公司 | A kind of vertical mill roller sheet |
| CN212791222U (en) * | 2020-04-26 | 2021-03-26 | 四川宇广能科技有限公司 | Grinding roller of Raymond mill |
-
2020
- 2020-04-26 CN CN202010352574.0A patent/CN111514988B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2351199Y (en) * | 1998-09-13 | 1999-12-01 | 王应昂 | Water-cooling roller device for flour mill |
| CN2451224Y (en) * | 2000-09-28 | 2001-10-03 | 杨志俊 | Mill roller |
| CN201441929U (en) * | 2009-07-15 | 2010-04-28 | 济南万方炭素有限责任公司 | Composite wear-resistant grinding roller |
| CN102389851A (en) * | 2011-11-15 | 2012-03-28 | 吉林大学 | High toughness bionic wear resistant grinding roller |
| CN202387508U (en) * | 2011-12-07 | 2012-08-22 | 广州乾鼎焊接科技有限公司 | Wear-resistant grinding roll for vertical coal grinder |
| CN202460715U (en) * | 2012-03-02 | 2012-10-03 | 李晓明 | Grinding roller for intermediate-speed mill |
| CN202590853U (en) * | 2012-03-09 | 2012-12-12 | 甘肃农业大学 | Grinding roller |
| CN205667873U (en) * | 2016-06-06 | 2016-11-02 | 方大特钢科技股份有限公司 | Medium-speed pulverizer grinding roller seal combination mechanism |
| CN107236952A (en) * | 2017-06-15 | 2017-10-10 | 宝志坚 | A kind of laser melting coating nanometer metal ceramic grinding roller |
| CN208098214U (en) * | 2017-12-22 | 2018-11-16 | 江苏双发机械有限公司 | A kind of vertical mill roller sheet |
| CN212791222U (en) * | 2020-04-26 | 2021-03-26 | 四川宇广能科技有限公司 | Grinding roller of Raymond mill |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111514988A (en) | 2020-08-11 |
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