CN114643103B - Vertical roller mill striker ring adjusting device - Google Patents
Vertical roller mill striker ring adjusting device Download PDFInfo
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- CN114643103B CN114643103B CN202210350345.4A CN202210350345A CN114643103B CN 114643103 B CN114643103 B CN 114643103B CN 202210350345 A CN202210350345 A CN 202210350345A CN 114643103 B CN114643103 B CN 114643103B
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- 238000000227 grinding Methods 0.000 claims abstract description 47
- 239000000843 powder Substances 0.000 claims abstract description 27
- 230000007246 mechanism Effects 0.000 claims abstract description 25
- 238000007599 discharging Methods 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims description 49
- 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
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 2
- 230000002829 reductive effect Effects 0.000 description 11
- 239000000725 suspension Substances 0.000 description 10
- 230000009471 action Effects 0.000 description 5
- 238000004364 calculation method Methods 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
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- 101000895701 Homo sapiens ER degradation-enhancing alpha-mannosidase-like protein 1 Proteins 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000003801 milling Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 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
- 238000001035 drying Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 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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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
- B02C15/003—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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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention discloses a vertical roller mill stop ring adjusting device, which is characterized in that a built-in adjusting mechanism is arranged in a mill middle shell; the grinding machine is characterized by comprising a stop ring, a stop ring support welded on the outer wall of the stop ring along the radial direction, a plurality of height-adjusting base plates are arranged above the stop ring support, the height-adjusting base plates and the stop ring support are fixedly arranged 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 the grinding machine. The invention can realize that the baffle ring and the millstone are separated in space, the baffle ring which rotates along with the millstone originally becomes suspended above the millstone and is statically supported by the bracket welded on the shell in the mill, and a fine powder discharging gap is formed between the baffle ring and the millstone, thereby realizing the discharging of fine powder.
Description
Technical Field
The invention belongs to the technical field of vertical roller mill design, and particularly relates to a stop ring adjusting device of a vertical roller mill.
Background
The grinding principle of the vertical roller mill is material layer grinding, namely, the grinding of materials is realized by mutually extruding particles, the grinding process has good controllability, and the grinding efficiency is high.
The working principle of the existing structure is as follows: the new feed and powder selecting machine feed back is fed into the middle part of the millstone by the feed bin under the action of gravity, the millstone rotates to drive the material to rotate, the material moves from the middle part 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 milling roller, the milling roller extrudes the material (material layer) under the combined action of force F and the material blocking ring, the material is milled, the milled material passes over the material blocking ring under the action of the centrifugal force, leaves the millstone, falls into the air ring under the action of gravity, then is upwards brought into the powder selecting machine at the upper part of the mill by high-speed airflow in the air ring, the qualified finished product is selected by the powder selecting machine, and the unqualified large particles are mixed with the new feed bin and then ground back until the milled into the finished product with the qualified granularity.
The vertical roller mill integrates grinding, drying and powder selecting, has compact structure, simple system and high drying capacity, has strong adaptability to materials, is widely applied to grinding of cement raw materials, clinker, industrial solid wastes, metallurgy and other materials, but has the greatest common problem that the controllability of a material layer is poor compared with a roller press which is used for grinding the material layer, and the only means for controlling the material layer is the adjustment of the height of a millstone stop ring. The material blocking height is increased, the controllability of the 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 mill is increased; for the equipment of the material layer grinding principle, the material layer controllability directly influences the stability and grinding efficiency of the grinder.
The material is rolled by the grinding roller, a large amount of fine powder is mixed in the material layer, the fine powder in the material is theoretically required to be completely discharged from the viewpoint of improving the grinding efficiency of the material layer, but due to the existence of the baffle ring of the grinding disc, most of fine powder mixed in the material layer below the height of the baffle ring is remained at the bottom of the grinding area except for partial fine powder discharged by the rotation and extrusion of the grinding roller, and the content of fine powder less than or equal to 80 mu m in the material reaches 18-20 percent according to industrial production statistical data. A large amount of fine powder remains at the bottom of the millstone, the fluidity of the material layer is increased, so that the stability of the material layer is damaged, on one hand, the vibration of the mill is caused, on the other hand, the grinding efficiency is reduced, the current of the mill is reduced, the time of the mill is reduced, the power consumption is increased, and meanwhile, the grain composition of a finished product of the mill is narrowed due to the increase of the circulating load in the mill, so that the quality and the performance of the finished product are influenced.
In the prior art, the height of the material stop ring can be adjusted up and down, but the maximum height of the material stop ring can be reduced to more than 50%, but part of the material stop ring still exists. In fact, the content of fine powder at the lower layer of the stop ring in the material rolled by the grinding roller is the greatest, the damage effect of the fine powder at the bottom of the material layer on the stability of the material layer can be relieved to a certain extent by reducing the height of the stop ring, the problem is still not thoroughly solved, and the root of the problem is that the height of the stop ring is in physical conflict with two variables of the stability and the grinding efficiency of the grinding machine, namely, if the stability and the yield of the grinding machine are to be improved, the height of the stop ring needs to be increased, but the grinding efficiency of the grinding machine is reduced; if the grinding efficiency of the mill is improved, the height of the stop ring must be reduced, but the yield and stability of the mill are affected. According to the TRIZ innovative theory research and solution, a 'separation' scheme is obtained, the purpose that the striker ring and the millstone are separated in space is achieved, the striker ring which originally rotates along with the millstone becomes suspended above the millstone and is statically supported by a bracket welded on a shell in the mill, a fine powder discharging gap is formed between the striker ring and the millstone, and further the discharging of fine powder of a bottom material layer can be achieved.
Disclosure of Invention
Aiming at the problems existing in the prior art, the invention provides the vertical roller mill stop ring adjusting device for realizing the separation of the stop ring and the millstone in space and the external discharge of fine powder.
The invention is realized in such a way that the vertical roller mill stop ring adjusting device comprises a mill shell, a millstone, a plurality of milling rollers, a blanking cone and a stop ring; the method is characterized in that: the outer side of the stop ring is provided with a stop ring adjusting mechanism which enables a fine powder discharging gap to be formed between the stop ring and the millstone.
Preferably, the stop ring adjusting mechanism is a built-in stop ring adjusting mechanism, and the built-in stop ring adjusting mechanism is arranged in the shell in the mill; the grinding machine comprises a stop ring support welded on the outer wall of a stop ring along the radial direction, wherein a plurality of height-adjusting base plates are arranged above the stop ring support, the height-adjusting base plates and the stop ring support are fixedly arranged 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 the grinding machine.
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, rib plates are welded on the upper surface of the radial support and the inner wall of the shell in the mill.
Preferably, the striker ring is formed by connecting a plurality of striker ring bodies, the connecting ends of the adjacent striker ring bodies are provided with an upper split flange and a lower split flange which are mutually matched, and the upper split flange and the lower split flange which are mutually matched are connected through fasteners.
Preferably, a wear-resistant protective sleeve is mounted on the fastener on the upper flange.
Preferably, the stop ring adjusting device is an external stop ring adjusting mechanism, and the external stop ring adjusting device is arranged outside the shell in the mill; the device comprises a stop ring, a stop ring support welded on the outer wall of the stop ring along the radial direction, wherein the stop ring support is fixedly arranged on a radial support through a fastener, an upper rib plate of the radial support is welded on the upper surface of the radial support near the side of a shell in a mill, a chute is arranged on the shell in the mill corresponding to the position of the upper rib plate of the radial support, the outer edge of the upper rib plate of the radial support extends out of the chute, and a height adjusting mechanism for driving the upper rib plate of the radial support, the radial support and the stop ring to move up and down integrally is arranged on the outer side of the shell in the mill.
Preferably, a radial bracket lower rib plate is welded on the lower surface of the radial bracket on the inner side of the shell in the mill; the radial support upper rib plate and the radial support lower rib plate are attached to the inner wall of the shell in the mill.
Preferably, the radial support upper rib plate is of an L-shaped structure; the horizontal section of the rib plate on the radial support of the L-shaped structure extends out of the 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 arranged at the bottom of an outer wall chute of the shell in the mill, and the lower end part of the radial support upper rib plate, which extends out of the shell in the mill, is welded on the rib plate base; an adjusting base is welded on the outer wall of the shell in the mill 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; respectively an upper wedge block which is horizontally static relative to the rib plate base and a lower wedge block which can horizontally move; the upper wedge block, the lower wedge block, the rib plate base and the adjusting base are provided with fastening bolt components in a penetrating mode, and the lower wedge block is provided with a plurality of fastening bolt component mounting holes along the horizontal direction.
Preferably, a rib plate is welded on the outer wall of the shell in the mill below the rib plate base.
Preferably, a sealing cover plate is adhered to the outer wall of the shell and the rib plate base in the mill.
Preferably, the striker ring is formed by connecting a plurality of striker ring bodies, the connecting ends of the adjacent striker ring bodies are provided with an upper split flange and a lower split flange which are mutually matched, and the upper split flange and the lower split flange which are mutually matched are connected through fasteners.
The invention has the advantages and technical effects that: the baffle ring and the millstone are spatially separated to form a suspension baffle ring, the baffle ring which originally rotates along with the millstone is changed into a suspension above the millstone and is statically supported by a bracket welded on a shell in the mill, an annular fine powder discharging gap is formed between the baffle ring and the millstone, and further the outer discharge of fine powder of a bottom material layer can be realized. As the content of fine powder in the material at the lower layer of the stop collar is higher, compared with other technical schemes such as a stop plate, the suspension stop collar scheme can thoroughly solve the problem that fine powder mixed in the material layer below the height of the stop collar 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 millstone material of the slag vertical roller mill and the steel slag vertical roller mill.
Drawings
FIG. 1 is a schematic view showing the construction of the installation position of embodiment 1 of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic view of the built-in adjusting mechanism of the suspension stop ring of FIG. 3;
FIG. 4 is a top view of FIG. 3;
FIG. 5 is a schematic view of the M-direction structure of FIG. 2;
FIG. 6 is a top view of FIG. 5;
FIG. 7 is a schematic view of the structure of embodiment 2 of the present invention;
FIG. 8 is a top view of FIG. 7;
Fig. 9 is an L-direction view in fig. 7.
In the figure, 1, a shell in a mill; 1-1, a chute; 2. a stop ring; 2-1, a striker ring body; 2-2, upper split flanges; 2-3, lower split flange; 2-4, fastening pieces; 2-5 parts of wear-resistant protective sleeves; 3. a stop ring support; 4. a height-adjusting backing plate; 5. a fastener; 6. a radial support; 7. an inclined bracket; 8. rib plates; 9. a rib plate is arranged on the radial bracket; 10. a height adjusting mechanism; 10-1, a rib plate base; 10-2, adjusting a base; 10-3, upper wedge block; 10-4, lower wedge blocks; 10-40, fastening bolt component mounting holes; 10-5, fastening the bolt assembly; 11. a radial support lower rib plate; 12. an inclined bracket; 13. rib plates; 14. sealing cover plate, 15, millstone.
Detailed Description
The present invention will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Embodiment 1 referring to fig. 1 to 6, a stop ring adjusting device for a vertical roller mill comprises a mill housing, a grinding disc 15, a plurality of grinding rollers, a blanking cone and a stop ring 2; the outer side of the stop ring is provided with a stop ring adjusting mechanism which enables a fine powder discharging gap to be formed between the stop ring and the millstone. In the embodiment, the material stop ring adjusting mechanism adopts a built-in material stop ring adjusting mechanism which is arranged in the shell 1 in the mill; the device comprises a stop ring support 3 welded on the outer wall of the stop ring along the radial direction, wherein the stop ring support can be arranged on the upper part or the lower part of a radial bracket according to the requirement of the stop ring on the working clearance of a grinding disc; a plurality of height adjusting base plates 4 are arranged above the stop ring support, and the number and the vertical position of the height adjusting plates can be adjusted according to the requirement of the stop ring on the working clearance of the grinding disc; the height-adjusting base plate and the retainer ring support are fixedly arranged on a radial bracket 6 through a fastener 5, and the outer end part of the radial bracket is welded on the inner wall of the shell 1 in the mill.
Preferably, one side or two sides of the radial support are provided with inclined supports 7, one end of each inclined support is welded on the side wall of the radial support, the other end of each inclined support is welded on the inner wall of the shell in the mill, circumferential force of the stop ring 2 is balanced, and bearing strength of the radial support is improved.
The rib plates 8 are welded on the upper surface of the radial support and the inner wall of the shell in the mill, so that the circumferential force of the stop ring 2 is balanced, and the bearing strength of the radial support is improved.
Preferably, the striker ring 2 is formed by connecting a plurality of striker ring bodies 2-1, the connecting ends of the adjacent striker ring bodies are provided with an upper split flange 2-2 and a lower split flange 2-3 which are matched with each other, the upper split flange and the lower split flange which are matched with each other are connected through a fastener 2-4, and the split structure is favorable for installation of a large mill.
Preferably, the wear-resistant protective sleeves 2-5 are arranged on the fasteners on the upper flange, dust is placed on the connecting surfaces of the fasteners through the wear-resistant protective sleeves, and the service lives of the fasteners are prolonged.
Embodiment 2 referring to fig. 7 to 9, a stop ring adjusting device for a vertical roller mill includes a mill housing, a grinding disc, a plurality of grinding rollers, a blanking cone and a stop ring 2; the outer side of the stop ring is provided with a stop ring adjusting mechanism which enables a fine powder discharging gap to be formed between the stop ring and the millstone. In the embodiment, the striker adjusting mechanism adopts an external striker adjusting mechanism; the external adjusting device is arranged outside the shell 1 in the mill; the device comprises a stop ring support 3 welded on the outer wall of a stop ring along the radial direction, wherein the stop ring support is fixedly arranged on a radial support 6 through a fastener 5, an upper rib plate 9 of the radial support is welded on the upper surface of the radial support close to the side of a shell in a mill, and a chute 1-1 is arranged on the shell in the mill at the position corresponding to the upper rib plate of the radial support; the radial support upper rib plate is of an L-shaped structure; the horizontal section of the rib plate on the radial support of the L-shaped structure extends out of the chute; the outer side of the shell in the mill is provided with a height adjusting mechanism 10 which drives the radial support upper rib plate 7, the radial support 6 and the stop ring 2 to move up and down integrally.
Preferably, a radial bracket lower rib plate 11 is welded on the lower surface of the radial bracket on the inner side of the shell in the mill; the upper rib plate of the radial support 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 end of each inclined support is welded on the side wall of the radial support, the other end of each inclined support is welded on the inner wall of the shell in the mill, and the bearing strength of the radial support is improved.
Preferably, the height adjusting mechanism 10 comprises a rib plate base 10-1 fixedly arranged at the bottom of an outer wall chute of the shell in the mill, and the lower end part of the radial support upper rib plate, which extends out of the shell in the mill, is welded on the rib plate base; an adjusting base 10-2 is welded on the outer wall of a shell in a grinder below a 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, and the two wedge-shaped adjusting blocks are respectively an upper wedge block 10-3 which is horizontally stationary relative to the rib plate base and a lower wedge block 10-4 which can horizontally move; the upper wedge block, the lower wedge block, the rib plate base and the adjusting base are provided with fastening bolt assemblies 10-5 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 the rib plates 13 are welded on the outer wall of the shell in 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 adhered to the outer wall of the shell and the base of the rib plate in the mill, so that dust is prevented from entering the mill.
The suspension striker ring scheme is mainly used for solving the problem that the dam ring height of the traditional striker ring is used for damaging a material layer by mixing fine powder in the blanking material, and the problem of bypass materials between adjacent grinding rollers still needs to be solved by the schemes of heightening the striker ring height or using a striker plate and the like. Accordingly, in order to verify the technical effect of the suspension stop, a TRM5.6 test mill model of Tianjin institute is adopted, an EDEM particle crushing simulation calculation platform is adopted, and the technical effect of the suspension stop ring under the conditions of different stop ring heights and different gaps from the grinding disc is calculated in a simulation mode, and the details are shown in table 1.
According to the EDEM calculation data in Table 1, the height of the suspension retainer ring and the gap from the grinding disc have obvious influence on the time of the grinding machine and the power consumption of a main machine, and compared with the traditional retainer ring technology, the most direct technical advantage is that the torque of the grinding disc is reduced, the time of the grinding machine is increased, and the distance between the suspension retainer ring and the grinding disc is 10mm. According to the calculation data statistical average of all working conditions of the simulation calculation, compared with the traditional 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% under the same condition.
EDEM theoretical calculation data of grinding suspension retainer ring scheme in 1TRM3.6 test
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (10)
1. A vertical roller mill stop ring adjusting device comprises a mill shell, a millstone, a plurality of mill rollers, a blanking cone and a stop ring; the method is characterized in that: the outer side of the stop ring is provided with a stop ring adjusting mechanism which forms a fine powder discharging gap between the stop ring and the millstone,
The material stop ring adjusting mechanism is a built-in material stop ring adjusting mechanism which is arranged in the shell of the mill; the grinding machine comprises a stop ring support welded on the outer wall of a stop ring along the radial direction, wherein a plurality of height-adjusting base plates are arranged above the stop ring support, the height-adjusting base plates and the stop ring support are fixedly arranged 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 the grinding machine.
2. The vertical roller mill retainer ring adjustment apparatus according to claim 1, wherein: the rib plates are welded on the upper surface of the radial support and the inner wall of the shell in the mill.
3. The vertical roller mill retainer ring adjustment apparatus according to claim 1, wherein: the stop ring is formed by connecting a plurality of stop ring bodies, the connecting ends of the adjacent stop ring bodies are provided with an upper split flange and a lower split flange which are mutually matched, and the upper split flange and the lower split flange which are mutually matched are connected through fasteners.
4. The vertical roller mill retainer ring adjustment apparatus according to claim 3, wherein: and a wear-resistant protective sleeve is arranged on the fastening piece on the upper split flange.
5. A vertical roller mill stop ring adjusting device comprises a mill shell, a millstone, a plurality of mill rollers, a blanking cone and a stop ring; the method is characterized in that: the outer side of the stop ring is provided with a stop ring adjusting mechanism which enables a fine powder discharging gap to be formed between the stop ring and the millstone, the stop ring adjusting device is an external stop ring adjusting mechanism, and the external stop ring adjusting device is arranged outside a shell in the mill; the device comprises a stop ring, a stop ring support welded on the outer wall of the stop ring along the radial direction, wherein the stop ring support is fixedly arranged on a radial support through a fastener, an upper rib plate of the radial support is welded on the upper surface of the radial support near the side of a shell in a mill, a chute is arranged on the shell in the mill corresponding to the position of the upper rib plate of the radial support, the outer edge of the upper rib plate of the radial support extends out of the chute, and a height adjusting mechanism for driving the upper rib plate of the radial support, the radial support and the stop ring to move up and down integrally is arranged on the outer side of the shell in the mill.
6. The vertical roller mill retainer ring adjustment apparatus according to claim 5, wherein: 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 an upper rib plate of the radial support is of an L-shaped structure; the horizontal section of the rib plate on the radial support of the L-shaped structure extends out of the chute; the radial support upper rib plate and the radial support lower rib plate are attached to the inner wall of the shell in the mill.
7. The vertical roller mill retainer ring adjustment apparatus according to claim 5, wherein: the height adjusting mechanism comprises a rib plate base fixedly arranged at the bottom of an outer wall chute of the shell in the mill, and the lower end part of the radial support upper rib plate, which extends out of the shell in the mill, is welded on the rib plate base; an adjusting base is welded on the outer wall of the shell in the mill 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; respectively an upper wedge block which is horizontally static relative to the rib plate base and a lower wedge block which can horizontally move; the upper wedge block, the lower wedge block, the rib plate base and the adjusting base are provided with fastening bolt components in a penetrating manner, and the lower wedge block is provided with a plurality of fastening bolt component mounting holes along the horizontal direction; and a sealing cover plate is adhered to the outer wall of the shell and the rib plate base in the mill.
8. The vertical roller mill retainer ring adjustment apparatus according to claim 5, wherein: and a rib plate is welded on the outer wall of the shell in the mill below the rib plate base.
9. The vertical roller mill retainer adjustment apparatus according to any one of claims 2 or 5, wherein: 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.
10. The vertical roller mill retainer ring adjustment apparatus according to claim 5, wherein: the stop ring is formed by connecting a plurality of stop ring bodies, the connecting ends of the adjacent stop ring bodies are provided with an upper split flange and a lower split flange which are mutually matched, and the upper split flange and the lower split flange which are mutually matched 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 |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210350345.4A CN114643103B (en) | 2022-04-02 | 2022-04-02 | Vertical roller mill striker ring adjusting device |
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| Publication Number | Publication Date |
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| CN114643103A CN114643103A (en) | 2022-06-21 |
| CN114643103B true 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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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4643366A (en) * | 1985-07-10 | 1987-02-17 | Kawasaki Jukogyo Kabushiki Kaisha | Roller mill |
| DE4442099C2 (en) * | 1994-11-25 | 1997-08-14 | Loesche Gmbh | Roller mill |
| JP2003164770A (en) * | 2001-12-03 | 2003-06-10 | Kawasaki Heavy Ind Ltd | Vertical mill |
| JP5488100B2 (en) * | 2010-03-25 | 2014-05-14 | 株式会社Ｉｈｉ | Reduction method of seam of vertical mill and 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 |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
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