CN114643103A - Vertical roller mill material blocking ring adjusting device - Google Patents
Vertical roller mill material blocking ring adjusting device Download PDFInfo
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- CN114643103A CN114643103A CN202210350345.4A CN202210350345A CN114643103A CN 114643103 A CN114643103 A CN 114643103A CN 202210350345 A CN202210350345 A CN 202210350345A CN 114643103 A CN114643103 A CN 114643103A
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- 239000000463 material Substances 0.000 title claims abstract description 158
- 230000000903 blocking effect Effects 0.000 title claims abstract description 75
- 238000000227 grinding Methods 0.000 claims abstract description 67
- 239000000843 powder Substances 0.000 claims abstract description 26
- 230000007246 mechanism Effects 0.000 claims abstract description 24
- 230000001681 protective effect Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 238000000926 separation method Methods 0.000 abstract description 3
- 239000000725 suspension Substances 0.000 description 8
- 230000009471 action Effects 0.000 description 5
- 238000004364 calculation method Methods 0.000 description 4
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
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- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
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- 239000010959 steel Substances 0.000 description 2
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- PGLIUCLTXOYQMV-UHFFFAOYSA-N Cetirizine hydrochloride Chemical compound Cl.Cl.C1CN(CCOCC(=O)O)CCN1C(C=1C=CC(Cl)=CC=1)C1=CC=CC=C1 PGLIUCLTXOYQMV-UHFFFAOYSA-N 0.000 description 1
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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
- B02C15/003—Shape or construction of discs or rings
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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
- B02C2015/002—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs combined with a classifier
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- Crushing And Grinding (AREA)
Abstract
The invention discloses a vertical roller mill retaining ring adjusting device, wherein a built-in adjusting mechanism is arranged in a middle shell of a mill; the material stopping ring support is welded on the outer wall of the material stopping ring along the radial direction, a plurality of height adjusting base plates are arranged above the material stopping ring support, the height adjusting base plates and the material stopping ring support are fixedly installed on a radial support through fasteners, and the outer end part of the radial support is welded on the inner wall of a shell in a mill. The invention can realize the spatial separation of the material blocking ring and the grinding disc, the material blocking ring which originally rotates along with the grinding disc is suspended above the grinding disc and is statically supported by the bracket welded on the shell in the grinding machine, and a fine powder discharge gap is formed between the material blocking ring and the grinding disc, thereby realizing the discharge of fine powder.
Description
Technical Field
The invention belongs to the technical field of vertical roller mill design, and particularly relates to a material blocking ring adjusting device of a vertical roller mill.
Background
The vertical roller mill is called as a vertical mill for short, and the grinding principle is material layer grinding, namely, grinding of materials is realized by mutual extrusion between particles, and the controllability of the grinding process is good, and the grinding efficiency is high.
The working principle of the existing structure is as follows: the new feed and the return material of the powder concentrator are fed into the middle of the millstone by the stock bin under the action of gravity, the millstone rotates to drive the material to rotate, the material moves from the middle of the millstone to the edge of the millstone under the action of centrifugal force, when the material moves to the lower part of the grinding roller, the grinding roller extrudes the material (material layer) under the combined action of force F and the material stop ring, the material is ground, the ground material crosses the material stop ring under the action of centrifugal force, leaves the millstone, falls into the air ring under the action of gravity, and is then upwards brought into the powder concentrator on the upper part of the mill by high-speed airflow in the air ring, qualified finished products are selected by the powder concentrator, unqualified large particles are mixed with the new feed through the stock bin and then are returned to the mill to be continuously ground until the ground into finished products with qualified particle size requirements.
The vertical roller mill integrates grinding, drying and powder selection, has compact structure, simple system, large drying capacity and strong adaptability to materials, is widely applied to grinding of various materials such as cement raw materials, clinker, industrial solid wastes, metallurgy and the like, but has the biggest common problem of poor controllability of a material layer compared with a roller press for grinding the material layer, and the only means for controlling the material layer is the adjustment of the height of a material retaining ring of a grinding disc. The material blocking height is increased, the controllability of a material layer is improved, but the grinding efficiency is reduced; the material blocking height is reduced, the grinding efficiency is increased, but the material layer is thinned, the controllability is reduced, and the vibration of the grinding machine is increased; for equipment based on a material layer grinding principle, the controllability of a material layer directly influences the stability and the grinding efficiency of a grinding machine.
Because the materials are rolled by the grinding roller, a large amount of fine powder is mixed in the material layer, and theoretically, the fine powder in the materials needs to be completely discharged from the aspect of improving the grinding efficiency of the material layer, but due to the existence of the material retaining ring of the grinding disc, the fine powder mixed in the material layer below the height of the material retaining ring is discharged by the rotation and the extrusion of the grinding roller, and most of the fine powder is remained at the bottom of a grinding area, and the content of the fine powder with the particle size of less than or equal to 80 mu m in the materials reaches 18-20% according to the statistical data of industrial production. A large amount of fine powder is remained at the bottom of the grinding disc to increase the fluidity of the material layer, so that the stability of the material layer is damaged, on one hand, the vibration of the grinding machine is caused, on the other hand, the grinding efficiency is reduced, the current of the grinding machine is reduced, the time of the grinding machine is reduced, the power consumption is increased, and meanwhile, the grain composition of a ground finished product is narrowed due to the increase of the internal circulation load of the grinding machine, and the quality and the performance of the finished product are influenced.
In the prior art, the height of the material blocking ring can be adjusted up and down, but the height of the material blocking ring can be reduced to more than 50% at most, but part of the material blocking ring still exists. In fact, the content of fine powder on the lower layer of the material blocking ring in the material rolled by the grinding roller is the largest, the damage of the fine powder at the bottom of the material layer to the stability of the material layer can only be relieved to a certain degree by reducing the height of the material blocking ring, and the problem still cannot be solved completely; if the grinding efficiency of the grinder is improved, the height of the material blocking ring must be reduced, but the yield and the stability of the grinder are influenced. According to the TRIZ innovation theory research and solution, a separation scheme is obtained, the material blocking ring and the grinding disc are separated in space, the material blocking ring which rotates along with the grinding disc originally becomes suspended above the grinding disc and is statically supported by a support welded on a shell in the grinding machine, a fine powder discharge gap is formed between the material blocking ring and the grinding disc, and then the discharge of fine powder on a bottom material layer can be realized.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the adjusting device for the stop ring of the vertical roller mill, which can realize the spatial separation of the stop ring and the mill and the discharge of fine powder.
The invention is realized in this way, a vertical roller mill stop ring adjusting device, including mill shell, mill, several grinding rollers, blanking awl and stop ring; the method is characterized in that: and a material blocking ring adjusting mechanism which enables a fine powder discharging gap to be formed between the material blocking ring and the grinding disc is arranged on the outer side of the material blocking ring.
Preferably, the material stop ring adjusting mechanism is a built-in material stop ring adjusting mechanism which is arranged in a middle shell of the mill; the material blocking ring support is welded on the outer wall of the material blocking ring along the radial direction, a plurality of height adjusting base plates are arranged above the material blocking ring support, the height adjusting base plates and the material blocking ring support are fixedly installed on a radial support through fasteners, and the outer end portion of the radial support is welded on the inner wall of a shell in a mill.
Preferably, one side or two sides of the radial support are provided with an inclined support, one end of the inclined support is welded on the side wall of the radial support, and the other end of the inclined support is welded on the inner wall of the shell in the mill.
Preferably, rib plates are welded on the upper surface of the radial support and the inner wall of the mill middle shell.
Preferably, the material blocking ring is formed by connecting a plurality of material blocking ring bodies, an upper splitting flange and a lower splitting flange which are matched with each other are arranged at the connecting end of the adjacent material blocking ring bodies, and the upper splitting flange and the lower splitting flange which are matched with each other are connected through fasteners.
Preferably, the upper flange is provided with a wear-resistant protective sleeve on the fastener.
Preferably, the stop ring adjusting device is an external stop ring adjusting mechanism, and the external stop ring adjusting mechanism is arranged outside a shell in the mill; the structure comprises a material blocking ring and a material blocking ring support welded on the outer wall of the material blocking ring along the radial direction, wherein the material blocking ring support is fixedly installed on a radial support through a fastener, the material blocking ring support is close to the middle shell of the mill, a rib plate on the radial support is welded on the upper surface of the radial support, a sliding groove is formed in the middle shell of the mill, the outer edge of the rib plate on the radial support extends out of the sliding groove, and a height adjusting mechanism for driving the rib plate on the radial support, the radial support and the material blocking ring to move up and down integrally is installed on the outer side of the middle shell of the mill.
Preferably, a radial support lower rib plate is welded on the lower surface of the radial support on the inner side of the shell in the mill; the upper rib plate and the lower rib plate of the radial support are attached to the inner wall of the shell in the mill.
Preferably, the upper rib plate of the radial support is of an L-shaped structure; the horizontal section of the rib plate on the radial support with the L-shaped structure extends out of the sliding chute.
Preferably, one side or two sides of the radial support are provided with inclined supports, one end of each inclined support is welded on the side wall of the radial support, and the other end of each inclined support is welded on the inner wall of the shell in the mill.
Preferably, the height adjusting mechanism comprises a rib plate base fixedly installed at the bottom of a chute on the outer wall of the mill middle shell, and the lower end part of the part, extending out of the mill middle shell, of the rib plate on the radial support is welded on the rib plate base; an adjusting base is welded on the outer wall of the mill middle shell below the rib plate base, and two wedge-shaped adjusting blocks which are matched with each other are arranged between the rib plate base and the adjusting base; an upper wedge block which is horizontally static relative to the rib plate base and a lower wedge block which can horizontally move are respectively arranged; and the upper wedge block, the lower wedge block, the rib plate base and the adjusting base are provided with fastening bolt assemblies in a penetrating manner, and the lower wedge block is provided with a plurality of fastening bolt assembly mounting holes along the horizontal direction.
Preferably, the rib plate is welded on the outer wall of the middle shell of the mill below the rib plate base.
Preferably, the outer wall of the shell in the mill and the rib plate base are bonded with sealing cover plates.
Preferably, the material blocking ring is formed by connecting a plurality of material blocking ring bodies, an upper splitting flange and a lower splitting flange which are matched with each other are arranged at the connecting end of the adjacent material blocking ring bodies, and the upper splitting flange and the lower splitting flange which are matched with each other are connected through fasteners.
The invention has the advantages and technical effects that: the material blocking ring and the grinding disc are separated in space to form a suspended material blocking ring, the material blocking ring which rotates along with the grinding disc originally is suspended above the grinding disc and is statically supported by a support welded on a shell in the grinding mill, and an annular fine powder discharging gap is formed between the material blocking ring and the grinding disc, so that the discharge of fine powder on a bottom material layer can be realized. As mentioned above, because the content of fine powder in the material on the lower layer of the material stop ring is higher, compared with other technical schemes such as a material stop plate, the suspension material stop ring scheme can thoroughly solve the problem that fine powder mixed in the material layer below the height of the material stop ring damages the stability of the material layer, has important significance for improving the stability and grinding efficiency of the cement vertical roller mill, the slag vertical roller mill, the steel slag vertical roller mill and the machine-made sand vertical roller mill, and can thoroughly solve the problem of iron enrichment in the mill material of the slag vertical roller mill and the steel slag vertical roller mill.
Drawings
FIG. 1 is a schematic structural view of an installation site in embodiment 1 of the present invention;
FIG. 2 is a top view of FIG. 1;
fig. 3 is a schematic structural view of a built-in adjusting mechanism of the suspension stop ring;
FIG. 4 is a top view of FIG. 3;
FIG. 5 is a schematic diagram of the M-directional structure of FIG. 2;
FIG. 6 is a top view of FIG. 5;
FIG. 7 is a schematic structural view of embodiment 2 of the present invention;
FIG. 8 is a top view of FIG. 7;
fig. 9 is an L-direction view of fig. 7.
In the figure, 1, a shell in a mill; 1-1, a chute; 2. a material blocking ring; 2-1, a material blocking ring body; 2-2, upper splitting of the flange; 2-3, lower splitting the flange; 2-4, fastening pieces; 2-5, wear-resistant protective sleeve; 3. a material blocking ring support; 4. a height adjusting backing plate; 5. a fastener; 6. a radial support; 7. an inclined bracket; 8. a rib plate; 9. a rib plate is arranged on the radial support; 10. a height adjustment mechanism; 10-1, a rib plate base; 10-2, adjusting a base; 10-3, an upper wedge block; 10-4, a lower wedge block; 10-40, fastening bolt assembly mounting holes; 10-5, fastening a bolt component; 11. a radial support lower rib plate; 12. an inclined bracket; 13. a rib plate; 14. sealing cover plate, 15, mill.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Preferably, one side or both sides of radial support are equipped with the down tube 7, down tube one end welding is on the lateral wall of radial support, and the other end welding of down tube is on the inner wall of casing in the mill, and balanced retaining ring 2's circumferential force improves radial support's bearing strength.
And rib plates 8 are welded on the upper surface of the radial support and the inner wall of the middle shell of the mill, so that the circumferential force of the material blocking ring 2 is balanced, and the bearing strength of the radial support is improved.
Preferably, the material blocking ring 2 is formed by connecting a plurality of material blocking ring bodies 2-1, an upper split flange 2-2 and a lower split flange 2-3 which are matched with each other are arranged at the connecting end of the adjacent material blocking ring bodies, the upper split flange and the lower split flange which are matched with each other are connected through a fastening piece 2-4, and a split structure is adopted to facilitate installation of a large-scale grinding machine.
Preferably, the upper flange is provided with a wear-resistant protective sleeve 2-5 on the fastener, dust is placed on the fastener connecting surface through the wear-resistant protective sleeve, and the service life of the fastener is prolonged.
In embodiment 2, please refer to fig. 7 to 9, a vertical roller mill stock stop ring adjusting device comprises a mill housing, a grinding disc, a plurality of grinding rollers, a blanking cone and a stock stop ring 2; and a material blocking ring adjusting mechanism which enables a fine powder discharge gap to be formed between the material blocking ring and the grinding disc is arranged on the outer side of the material blocking ring. In the embodiment, the stop ring adjusting mechanism adopts an external stop ring adjusting mechanism; the external adjusting device is arranged outside the middle shell 1 of the mill; the material blocking ring support is fixedly arranged on a radial support 6 through a fastener 5, a radial support upper rib plate 9 is welded on the upper surface of the radial support close to the middle shell of the mill, and a chute 1-1 is arranged on the middle shell of the mill at the position corresponding to the radial support upper rib plate; the upper rib plate of the radial support is of an L-shaped structure; the horizontal section of the rib plate on the radial support with the L-shaped structure extends out of the chute; and a height adjusting mechanism 10 for driving the radial support upper rib plate 7, the radial support 6 and the material stop ring 2 to integrally move up and down is arranged on the outer side of the shell in the mill.
Preferably, a radial support lower rib plate 11 is welded on the lower surface of the radial support on the inner side of the shell in the mill; the upper rib plate and the lower rib plate of the radial support are attached to the inner wall of the shell in the mill, so that the bearing strength of the radial support is improved.
Preferably, one side or two sides of the radial support are provided with inclined supports 12, one ends of the inclined supports are welded on the side walls of the radial support, and the other ends of the inclined supports are welded on the inner wall of the shell in the mill, so that the bearing strength of the radial support is improved.
Preferably, the height adjusting mechanism 10 comprises a rib plate base 10-1 fixedly installed at the bottom of a chute on the outer wall of the shell in the mill, and the lower end part of the part, extending out of the shell in the mill, of the rib plate on the radial support is welded on the rib plate base; an adjusting base 10-2 is welded on the outer wall of a shell in the mill below the rib plate base, two wedge-shaped adjusting blocks which are matched with each other are arranged between the rib plate base and the adjusting base, namely an upper wedge block 10-3 which is horizontally static relative to the rib plate base and a lower wedge block 10-4 which can horizontally move; and fastening bolt assemblies 10-5 are arranged on the upper wedge block, the lower wedge block, the rib plate base and the adjusting base in a penetrating manner, and the lower wedge block is provided with a plurality of fastening bolt assembly mounting holes 10-40 along the horizontal direction.
And rib plates 13 are welded on the outer wall of the middle shell of the mill below the rib plate base, so that the bearing strength of the rib plate base is improved.
Preferably, a sealing cover plate 14 is bonded on the outer wall of the shell and the rib plate base in the grinding machine, so that dust is prevented from entering the grinding machine.
The suspension material stop ring scheme is mainly used for solving the destructive effect of fine powder mixed in the material stop ring height existing in the traditional material stop ring and blanking materials on a material layer, and the problem of bypass materials between adjacent grinding rollers still needs to be solved by increasing the height of the material stop ring or using the schemes of a material stop plate and the like. In view of the above, for verifying suspension fender material technological effect to tianjin institute TRM5.6 test mill model, adopt EDEM granule breakage simulation calculation platform, the technological effect of suspension fender material circle under different fender material circle height and the different clearance condition of apart from the mill is simulated and calculated, see table 1 for details.
According to the EDEM calculation data in table 1, the height of the suspension material blocking ring and the clearance from the grinding disc have obvious influence on the power consumption of the grinder and the power consumption of a host, and compared with the traditional material blocking ring technology, the most direct technical advantages are that the torque of the grinding disc is reduced, the grinding disc is increased during the grinding process, and the proper clearance between the suspension material blocking ring and the grinding disc is 10 mm. And calculating the statistical average of data according to simulation calculation under all working conditions, wherein under the same condition, compared with the traditional material stop ring technology, the grinding machine time is increased by 18.9%, and the power consumption of a main machine is reduced by 23.7%.
TABLE 1EDEM theoretical calculation data of suspension material stop ring scheme of TRM3.6 test mill
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A vertical roller mill retaining ring adjusting device comprises a mill shell, a grinding disc, a plurality of grinding rollers, a blanking cone and a retaining ring; the method is characterized in that: and a material blocking ring adjusting mechanism which enables a fine powder discharge gap to be formed between the material blocking ring and the grinding disc is arranged on the outer side of the material blocking ring.
2. The vertical roller mill material stop ring adjusting device according to claim 1, characterized in that: the material blocking ring adjusting mechanism is a built-in material blocking ring adjusting mechanism which is arranged in a middle shell of the mill; the material blocking ring support is welded on the outer wall of the material blocking ring along the radial direction, a plurality of height adjusting base plates are arranged above the material blocking ring support, the height adjusting base plates and the material blocking ring support are fixedly installed on a radial support through fasteners, and the outer end portion of the radial support is welded on the inner wall of a shell in a mill.
3. The vertical roller mill material stop ring adjusting device according to claim 2, characterized in that: and rib plates are welded on the upper surface of the radial support and the inner wall of the middle shell of the mill.
4. The vertical roller mill material stop ring adjusting device according to claim 2, characterized in that: and a wear-resistant protective sleeve is arranged on the fastener on the upper flange.
5. The vertical roller mill material stop ring adjusting device according to claim 1, characterized in that: the stop ring adjusting device is an external stop ring adjusting mechanism which is arranged outside a shell in the mill; including keeping off the material circle, along the fender material circle support of radial direction welding at the outer wall of keeping off the material circle, keep off the material circle support and pass through fastener fixed mounting on radial support, be close to casing side in the mill gusset on the radial support of upper surface welding of radial support corresponds radial support upper rib plate position be equipped with the spout on the casing in the mill, the spout is stretched out to the outward flange of gusset on the radial support, and the outside of casing is installed and is driven the height control mechanism of the whole up-and-down motion of gusset, radial support and fender material circle on the radial support in the mill.
6. The vertical roller mill material stop ring adjusting device according to claim 5, characterized in that: a radial support lower rib plate is welded on the lower surface of the radial support on the inner side of the shell in the mill, and the radial support upper rib plate is of an L-shaped structure; the horizontal section of the rib plate on the radial support with the L-shaped structure extends out of the chute; the upper rib plate and the lower rib plate of the radial support are attached to the inner wall of the shell in the mill.
7. The vertical roller mill material stop ring adjusting device according to claim 5, characterized in that: the height adjusting mechanism comprises a rib plate base fixedly installed at the bottom of an outer wall sliding chute of the mill middle shell, and the lower end part of the part, extending out of the mill middle shell, of the rib plate on the radial support is welded on the rib plate base; an adjusting base is welded on the outer wall of the mill middle shell below the rib plate base, and two wedge-shaped adjusting blocks which are matched with each other are arranged between the rib plate base and the adjusting base; an upper wedge block which is horizontally static relative to the rib plate base and a lower wedge block which can horizontally move are respectively arranged; fastening bolt assemblies are arranged on the upper wedge block, the lower wedge block, the rib plate base and the adjusting base in a penetrating manner, and a plurality of fastening bolt assembly mounting holes are formed in the lower wedge block along the horizontal direction; and a sealing cover plate is bonded on the outer wall of the shell and the rib plate base in the mill.
8. The vertical roller mill material stop ring adjusting device according to claim 5, characterized in that: and rib plates are welded on the outer wall of the middle shell of the mill below the rib plate base.
9. The vertical roller mill material stop ring adjusting device according to any one of claims 2 or 5, characterized in that: one side or two sides of the radial support are provided with inclined supports, one end of each inclined support is welded on the side wall of the radial support, and the other end of each inclined support is welded on the inner wall of the middle shell of the mill.
10. The vertical roller mill material stop ring adjusting device according to any one of claims 2 or 5, characterized in that: the material blocking ring is formed by connecting a plurality of material blocking ring bodies, an upper splitting flange and a lower splitting flange which are matched with each other are arranged at the connecting end of the adjacent material blocking ring bodies, and the upper splitting flange and the lower splitting flange which are matched with each other are connected through fasteners.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210350345.4A CN114643103B (en) | 2022-04-02 | 2022-04-02 | Vertical roller mill striker ring adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210350345.4A CN114643103B (en) | 2022-04-02 | 2022-04-02 | Vertical roller mill striker ring adjusting device |
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| CN114643103A true CN114643103A (en) | 2022-06-21 |
| CN114643103B CN114643103B (en) | 2024-06-14 |
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| CN202210350345.4A Active CN114643103B (en) | 2022-04-02 | 2022-04-02 | Vertical roller mill striker ring adjusting device |
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|---|---|---|---|---|
| EP0208033A1 (en) * | 1985-07-10 | 1987-01-14 | Kawasaki Jukogyo Kabushiki Kaisha | Roller mill |
| DE4442099A1 (en) * | 1994-11-25 | 1996-05-30 | Loesche Gmbh | Roller mill |
| JP2003164770A (en) * | 2001-12-03 | 2003-06-10 | Kawasaki Heavy Ind Ltd | Vertical mill |
| JP2011200773A (en) * | 2010-03-25 | 2011-10-13 | Ihi Corp | Vertical mill and joint reduction method for table segment |
| CN106378236A (en) * | 2016-08-29 | 2017-02-08 | 山东玻纤集团股份有限公司 | Vertical grinding machine for glass fiber |
| CN212820241U (en) * | 2020-07-22 | 2021-03-30 | 中材（天津）粉体技术装备有限公司 | Deironing device in vertical roller mill |
| CN215087886U (en) * | 2021-05-28 | 2021-12-10 | 中材（天津）粉体技术装备有限公司 | Material blocking device of material blocking ring of vertical roller mill |
| CN217120424U (en) * | 2022-04-02 | 2022-08-05 | 天津水泥工业设计研究院有限公司 | External adjusting device of vertical roller mill suspension material blocking ring |
| CN217120425U (en) * | 2022-04-02 | 2022-08-05 | 天津水泥工业设计研究院有限公司 | Vertical roller mill suspension material blocking ring built-in adjusting device |
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2022
- 2022-04-02 CN CN202210350345.4A patent/CN114643103B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0208033A1 (en) * | 1985-07-10 | 1987-01-14 | Kawasaki Jukogyo Kabushiki Kaisha | Roller mill |
| DE4442099A1 (en) * | 1994-11-25 | 1996-05-30 | Loesche Gmbh | Roller mill |
| JP2003164770A (en) * | 2001-12-03 | 2003-06-10 | Kawasaki Heavy Ind Ltd | Vertical mill |
| JP2011200773A (en) * | 2010-03-25 | 2011-10-13 | Ihi Corp | Vertical mill and joint reduction method for table segment |
| CN106378236A (en) * | 2016-08-29 | 2017-02-08 | 山东玻纤集团股份有限公司 | Vertical grinding machine for glass fiber |
| CN212820241U (en) * | 2020-07-22 | 2021-03-30 | 中材（天津）粉体技术装备有限公司 | Deironing device in vertical roller mill |
| CN215087886U (en) * | 2021-05-28 | 2021-12-10 | 中材（天津）粉体技术装备有限公司 | Material blocking device of material blocking ring of vertical roller mill |
| CN217120424U (en) * | 2022-04-02 | 2022-08-05 | 天津水泥工业设计研究院有限公司 | External adjusting device of vertical roller mill suspension material blocking ring |
| CN217120425U (en) * | 2022-04-02 | 2022-08-05 | 天津水泥工业设计研究院有限公司 | Vertical roller mill suspension material blocking ring built-in adjusting device |
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