CN112295659B - Roller system structure of high-pressure roller mill - Google Patents
Roller system structure of high-pressure roller mill Download PDFInfo
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- CN112295659B CN112295659B CN202011151733.7A CN202011151733A CN112295659B CN 112295659 B CN112295659 B CN 112295659B CN 202011151733 A CN202011151733 A CN 202011151733A CN 112295659 B CN112295659 B CN 112295659B
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- roller
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- circular ring
- plate
- resistant
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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
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/02—Crushing or disintegrating by roller mills with two or more rollers
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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
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
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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
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/286—Feeding devices
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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
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/30—Shape or construction of rollers
- B02C4/305—Wear resistant rollers
Abstract
A roller system structure of a high-pressure roller mill belongs to the technical field of crushing machinery, and particularly relates to a roller system structure of a high-pressure roller mill. The invention provides a high-pressure roller mill roller system structure with a good using effect. The roller comprises a first roller 1 and a second roller 2 which are transversely arranged, and is characterized in that two end faces of the second roller 2 are respectively provided with a basic circular ring plate 3 with the diameter larger than that of the second roller 2, two opposite inner side faces of the two basic circular ring plates 3 are respectively provided with a wear-resistant circular ring plate 4, and two end faces of the first roller 1 are arranged on the inner sides of the wear-resistant circular ring plates 4; the basic circular plate 3 and the wear-resistant circular plate 4 are of detachable structures.
Description
Technical Field
The invention belongs to the technical field of crushing machinery, and particularly relates to a roller system structure of a high-pressure roller mill.
Background
The high-pressure roller mill is widely applied to various industries such as cement, metal mines and the like by depending on the efficient lamination crushing principle, but certain inherent problems are difficult to solve due to the structural principle of the traditional high-pressure roller mill. The 'edge effect' is the defect that the high-pressure roller mill with the traditional structure cannot eliminate, and the problems caused by the 'edge effect' are as follows: 1. the discharge granularity of the edge of the roller becomes coarse, so that the discharge granularity index of the whole machine is deteriorated, the roller is used for an open-circuit process, the subsequent equipment handling capacity is influenced, the roller is used for a closed-circuit process, and the power consumption and the steel consumption of ton products are increased. 2. The side baffle is seriously worn and frequently replaced, the operation rate of the equipment is greatly reduced, and the side baffle cannot be used for requiring the equipment to work under a longer working condition. 3. The wear of the whole roller surface is uneven, the wear of the middle part of the roller is fast, the wear of the edge is slow, the discharging granularity of the equipment is deteriorated, and the treatment capacity is reduced. The roll gap is not uniform across the width of the roll, making the roll gap difficult to adjust.
At present, the technology of adding the flange baffles on two end faces of one roller changes the principle of extruding materials by the edges of the roller, changes the abrasion mechanism of the side baffles, well solves a series of problems caused by the edge effect of the traditional high-pressure roller mill, but also has some problems, such as short service life of the flange baffles, difficult integral replacement and difficult continuous and stable production.
Disclosure of Invention
The invention aims at the problems and provides a roller system structure of a high-pressure roller mill with good use effect.
In order to achieve the purpose, the invention adopts the following technical scheme that the invention comprises a first roller 1 and a second roller 2 which are transversely arranged, and is characterized in that two end faces of the second roller 2 are respectively provided with a basic circular ring plate 3 with the diameter larger than that of the second roller 2, two opposite inner side faces of the two basic circular ring plates 3 are respectively provided with a wear-resistant circular ring plate 4, and two end faces of the first roller 1 are arranged at the inner side of the wear-resistant circular ring plates 4; the basic circular plate 3 and the wear-resistant circular plate 4 are of detachable structures.
In a preferred embodiment, the first roll 1 and the second roll 2 have the same diameter and width.
In another preferred scheme, the first roller 1 and the second roller 2 are embedded with wear-resistant studs 9 in the middle and wear-resistant blocks 10 at the edges.
As another preferable mode, the basic ring plate 3 of the present invention is connected to both outer end faces 11 of the second roller 2 by the bolt assemblies 5.
As another preferable mode, the wear-resistant ring plate 4 of the present invention is connected to both inner end surfaces of the base ring plate 3 by bolt assemblies 6.
As another preferable scheme, the basic annular plate 3 of the present invention is composed of two or more arc-shaped sections.
As another preferable scheme, the wear-resistant circular ring plate 4 of the present invention is composed of two or more arc-shaped sections.
As another preferable scheme, the outer diameter of the basic circular plate 3 is larger than that of the roller 2, and the inner diameter is smaller than that of the roller 2.
As another preferred scheme, the outer diameter of the wear-resistant circular ring plate 4 is the same as that of the basic circular ring plate 3; the inner diameter of the wear-resistant circular ring plate 4 is smaller than the outer diameter of the second roller 2 and larger than the inner diameter of the basic circular ring plate 3.
As another preferable scheme, the difference between the radius of the outer circle of the wear-resistant annular plate 4 and the radius of the outer circle of the second roller 2 is larger than the surface distance between the first roller 1 and the second roller 2, and the two inner surfaces of the wear-resistant annular plate 4 and the two outer end surfaces 11 of the first roller 1 have a partial overlapping region and a gap.
As another preferable scheme, the wear-resistant circular ring plate 4 is a whole ring formed by 16 equally-divided arc sections, each wear-resistant circular ring plate 4 comprises a wear-resistant plate 4-2, a boss group 4-1 is arranged on the butt joint surface of the wear-resistant plate 4-2 and the basic circular ring plate 3, a threaded hole 4-3 is arranged in the center of each boss of the boss group 4-1, and the lower end of the wear-resistant plate 4-2 is a bottom arc surface 4-4.
As another preferred scheme, the basic annular plate 3 is a whole ring formed by 8 equally-divided arc sections, a groove 3-1 is formed in the butt joint face of each section of the basic annular plate 3 and the wear-resistant annular plate 4, a bolt handle engaging hole 3-2 used for engaging with the wear-resistant annular plate 4 is formed in the bottom face of the groove 3-1, and a bolt handle engaging hole 3-3 used for engaging with the end face of the second roller 2 is formed in each section of the basic annular plate 3.
As another preferred scheme, two sections of wear-resistant circular ring plates 4 are arranged on each section of basic circular ring plate 3.
As another preferred scheme, each wear-resistant circular ring plate 4 is provided with one or more than one boss group 4-1, and each boss group 4-1 can contain one or more than one boss.
As another preferred scheme, each section of wear-resistant circular ring plate 4 comprises two rows of boss groups 4-1, and the connecting lines of the circle centers of two circular bosses in each row of boss group are parallel to each other.
As another preferred scheme, the grooves 3-1 are arranged on the periphery of each section of the basic annular plate 3, the outer ends of the grooves 3-1 are open, one groove 3-1 corresponds to one row of boss groups 4-1, the basic annular plate 3 on the inner side of the groove 3-1 protrudes towards the side of the end face of the second roller 2, and the periphery of the protruding part is an upper arc surface 3-4 corresponding to the bottom arc surface 4-4; the inner ring of the end face of the second roller 2 is provided with a convex ring 2-2, and the inner end face 3-5 of the basic circular ring plate 3 and the outer end face of the convex ring 2-2 are butt joint faces.
As another preferred scheme, the wear plate 4-2 is embedded with a hard alloy stud.
As another preferred scheme, the length of the hard alloy stud is the same as the thickness of the wear-resisting plate 4-2.
Secondly, a wear-resistant layer is welded on the wear surface of the wear-resistant plate 4-2, and a wear-resistant coating is added.
In addition, the middle parts of the surfaces of the first roller 1 and the second roller 2 are provided with stud holes 9-1 for embedding wear-resistant studs 9, the edges of the surfaces of the first roller 1 and the second roller 2 are provided with wear-resistant block mounting grooves 10-1 for embedding wear-resistant blocks 10, and the wear-resistant blocks 10 are continuously arranged along the circumference.
The invention has the beneficial effects.
The basic circular plate 3 of the invention is not contacted with materials, only provides the function of bearing crushing load, does not need to be replaced periodically, the structure between the wear-resistant circular plate 4 and the basic circular plate 3 is detachable, two corresponding inner side surfaces of the wear-resistant circular plate 4 are contacted with the materials to play a wear-resistant role, the wear-resistant circular plate is replaced independently after being worn, and the service life of the flange baffle (the basic circular plate 3 and the wear-resistant circular plate 4 of the invention play a role of the flange baffle together) is prolonged.
Drawings
The invention is further described with reference to the following figures and detailed description. The scope of the invention is not limited to the following expressions.
FIG. 1 is a schematic structural diagram of a roller system of a high-pressure roller mill.
Fig. 2 is an axial view of the roller system of the high pressure roller mill.
Fig. 3 is a top view of a high pressure roller mill roller system.
FIG. 4 is a schematic view of an assembly structure of a basic annular plate and a wear-resistant annular plate.
FIG. 5 is a schematic diagram of the structure of a basic circular ring plate.
Fig. 6 is a schematic diagram of a wear-resistant circular plate structure.
Fig. 7 is a schematic structural diagram of the matrix of the roller 1.
Fig. 8 is a schematic diagram of the matrix structure of the roll 2.
FIG. 9 is an enlarged view of the base I of the roll.
Fig. 10 is a structural schematic diagram of the wear-resistant block.
FIG. 11 is a schematic view of the assembly of the roller system and related structure.
The numbering in FIGS. 1-10 illustrates: the roller comprises a first roller 1, a second roller 2, arc-shaped convex rings 2-2, a basic circular ring plate 3, a groove 3-1, a bolt handle combination hole 3-2, a bolt handle combination hole 3-3, an upper arc surface 3-4, a lower arc surface 3-5, a wear-resistant circular ring plate 4, a boss group 4-1, a wear-resistant plate 4-2, a threaded hole 4-3, a bottom arc surface 4-4, a bolt assembly 5, a bolt assembly 6, a wear-resistant stud 9, a stud hole 9-1, a wear-resistant block groove 10-1, a wear-resistant block 10, a roller end surface 11, a half frame body 12, a half frame body 13, a base 14, a hydraulic cylinder 15, a pin shaft 16 and a gasket group 17.
Fig. 12 is a schematic view of the side damper mechanism installation position.
FIG. 13 is a schematic view of the outer side of the multi-directional adjustable side dam.
Fig. 14 is a schematic structural view of the bottom plate of the side shutter mechanism.
Fig. 15 is a schematic structural view of a pressing plate of the side shutter mechanism.
Fig. 16 is a schematic view of the spacer of the side barrier mechanism.
In FIGS. 12-16: feed box 21, gasket 22, opening 22-1, bolt assembly 23, pressure plate 24, hole 24-1, bottom plate 25, hole 25-1, hole 25-2, wear plate 26, arc 26-1, bolt assembly 27, roller train 28, roller train 29.
FIG. 17 is a schematic view of the structure of the feeding device.
FIG. 18 is a schematic view of the feed box structure.
Fig. 19 is a schematic view of a beam structure.
FIG. 20 is a schematic view of the structure of the case.
FIG. 21 shows a schematic view of a feed chute.
FIG. 22 is a schematic view of the structure of the adjusting plate.
Numbering in figures 17-22: the device comprises a vertical column 31, a vertical column 32, a cross beam 33, a first plane 33-1, a second plane 33-2, a third plane 33-3, a feeding box 21, a box body 35, a flange plane 35-1, an adjusting device connecting point 35-2, a plane 35-3, a rotating shaft hole 35-4, a side baffle 36, a side baffle 37, an adjusting plate 38, a rotating plate 38-1, a wear-resistant plate 38-2, a crank 38-3, an upper arc surface 38-4, a lower arc surface 38-5, a rotating shaft 38-6, an adjusting device rotating shaft 38-7, an adjusting device 39, a sealing cover 310, an opening 310-1, a wear-resistant slide pipe 311, a flange plane 311-1, a wear-resistant pipe 311-2, a dust removing opening 312 and an annular cavity space 313.
FIG. 23 is a schematic view of the overall structure.
FIG. 24 is a schematic view of the structure of the sealing cap.
Detailed Description
As shown in the figure, the roller comprises a first roller 1 and a second roller 2 which are transversely arranged, wherein two end faces of the second roller 2 are respectively provided with a basic circular ring plate 3 with the diameter larger than that of the second roller 2, two opposite inner side faces of the two basic circular ring plates 3 are respectively provided with a wear-resistant circular ring plate 4, and two end faces of the first roller 1 are arranged on the inner sides of the wear-resistant circular ring plates 4; the basic circular plate 3 and the wear-resistant circular plate 4 are of detachable structures.
The basic circular plate 3 and the wear-resistant circular plate 4 are of detachable structures, the wear-resistant circular plate 4 has a wear-resistant effect, and only the wear-resistant circular plate 4 is made of wear-resistant materials, so that the cost is reduced.
Because wear-resisting ring plate 4 is detachable construction with basic ring plate 3, but wear-resisting ring plate 4 is as the replacement, and thickness can be done less, when reducing wearing parts weight itself, improves wear-resisting material's utilization ratio by a wide margin to reduce the steel cost of consuming of flange baffle.
When in use, the first roller 1 and the second roller 2 rotate in opposite directions with a certain gap therebetween.
The first roller 1 and the second roller 2 have the same diameter and width.
The base annular plate 3 is connected to both outer end faces of the second roller 2 by bolt assemblies 5.
The wear-resistant ring plate 4 is connected to two inner end faces of the base ring plate 3 by bolt assemblies 6.
The middle parts of the first roller 1 and the second roller 2 are embedded with wear-resistant studs 9, and the edges are embedded with wear-resistant blocks 10. The wear-resistant material coverage rate on the roller edge is greater than the roller surface, the wear resistance is strengthened, the phenomenon that the roller edge abrasion loss is large due to the fact that the extrusion stress of the roller edge is slightly larger than the middle of the roller after a flange baffle is added is eliminated, the abrasion loss of the outer cylindrical surface of the roller body in the whole service cycle of the roller is consistent, the discharging granularity of equipment is stable, the granularity index deterioration cannot occur, the yield is reduced, the roller edge wear-resistant material coverage rate can be achieved, and the roller edge wear-resistant material can be adjusted according to production requirements in the whole life cycle of the roller. 3. And the smooth popularization of the complete machine of the high-pressure roller mill is facilitated by matching with other related structures of equipment.
The basic circular plate 3 is composed of two or more arc sections.
The wear-resistant circular ring plate 4 consists of two or more arc sections.
The outer diameter of the basic circular plate 3 is larger than that of the roller 2, and the inner diameter of the basic circular plate is smaller than that of the roller 2.
The outer diameter of the wear-resistant circular ring plate 4 is the same as that of the basic circular ring plate 3; the inner diameter of the wear-resistant circular ring plate 4 is smaller than the outer diameter of the second roller 2 and larger than the inner diameter of the basic circular ring plate 3.
The difference between the radius of the excircle of the wear-resistant circular ring plate 4 and the radius of the excircle of the second roller 2 is larger than the surface distance between the first roller 1 and the second roller 2, and the two inner surfaces of the wear-resistant circular ring plate 4 and the two outer end surfaces 11 of the first roller 1 have a part of overlapping regions and gaps.
The wear-resistant circular ring plate 4 is a whole ring formed by 16 equally divided arc sections, each wear-resistant circular ring plate 4 comprises a wear-resistant plate 4-2, a boss group 4-1 is arranged on the butt joint surface of the wear-resistant plate 4-2 and the basic circular ring plate 3, a threaded hole 4-3 is formed in the center of each boss of the boss group 4-1, and the lower end of the wear-resistant plate 4-2 is a bottom arc surface 4-4.
The base circular plate 3 is an integral ring formed by 8 equal arc sections, a groove 3-1 is formed in the butt joint face of each section of the base circular plate 3 and the wear-resistant circular plate 4, a bolt handle closing hole 3-2 used for being closed with the wear-resistant circular plate 4 is formed in the bottom face of the groove 3-1, and a bolt handle closing hole 3-3 used for being closed with the end face of the second roller 2 is formed in each section of the base circular plate 3.
When the wear-resistant ring plate is installed, the section of wear-resistant ring plate 4 slides into the base ring plate 3 along a group of corresponding grooves 3-1, the upper arc surface 3-4 is matched with the bottom arc surface 4-4, and the bolt assembly 6 is connected. Then, another segment of wear-resistant annular plate 4 is installed. An assembly body formed by a section of basic circular ring plate 3 and two sections of wear-resistant circular ring plates 4 is formed, and then the assembly body is assembled and fixed with two end faces of the second roller 2 by means of the positioning function between the convex ring 2-2 and the inner end face 3-5 of the basic circular ring plate 3 and the connecting and fastening function of the bolt component 5.
Along with the broken ore of equipment, the wearing and tearing volume of wear-resisting ring board 4 reaches the limit of allowwing, only need loosen bolt assembly 5, and the monomer segmental arc of wear-resisting ring board 4 is followed the radial roll-off of roller axis in recess 3-1, realizes dismantling, and the new piece is installed again to the weight and the volume are great and need not dismantle by the change basic ring board 3.
The wear-resisting plate 4-2 in the wear-resisting circular ring plate 4 mainly plays a wear-resisting role, and the material is a wear-resisting steel plate with a small thickness and a high hardness grade, and is directly cut into a single arc-shaped section by laser. And then the boss group 4-1 and the wear-resisting plate 4-2 are made of materials which are easy to process to form a wear-resisting circular ring plate 4. The procedures of round blanking, round turning, drilling, halving cutting and the like are omitted. Compared with full-circle blanking, single-arc-section blanking can greatly improve the utilization rate of the plate; the working procedures of turning, drilling, cutting and the like are omitted, the restriction of the processing requirement on material selection is eliminated, and a high-hardness wear-resistant plate can be selected, so that the service life is prolonged, and the manufacturing cost and the manufacturing period are shortened.
And two sections of wear-resistant circular ring plates 4 are arranged on each section of basic circular ring plate 3.
One or more than one boss group 4-1 is arranged on each wear-resistant circular ring plate 4, and one or more than one boss can be arranged in each boss group 4-1.
Each section of wear-resistant circular ring plate 4 comprises two rows of boss groups 4-1, and the connecting lines of the circle centers of the two circular bosses in each row of boss group are parallel to each other.
The grooves 3-1 are formed in the periphery of each section of the basic circular ring plate 3, the outer ends of the grooves 3-1 are open, one groove 3-1 corresponds to one row of boss groups 4-1, the basic circular ring plate 3 on the inner side of the groove 3-1 protrudes towards the side of the end face of the second roller 2, and the periphery of the protruding part is an upper arc face 3-4 corresponding to the bottom arc face 4-4; the inner ring of the end face of the second roller 2 is provided with a convex ring 2-2, and the inner end face 3-5 of the basic circular ring plate 3 and the outer end face of the convex ring 2-2 are butt joint faces. The convex ring 2-2 is used for supporting the basic circular ring plate 3 and positioning the basic circular ring plate 3.
The upper cambered surface 3-4 is used for supporting the wear-resistant circular ring plate 4 and positioning the wear-resistant circular ring plate in one direction.
The boss group 4-1 arranged on the wear-resistant circular ring plate 4 can slide into the inner part from the outer circle of the basic circular ring plate 3 along the groove 3-1.
The hard alloy stud is embedded in the wear-resisting plate 4-2, so that the wear-resisting service life is further prolonged, the wear-resisting plate is independently replaced when the wear reaches the limit, and the utilization rate of hard alloy materials is improved.
The length of the hard alloy stud is the same as the thickness of the wear-resisting plate 4-2.
And a wear-resistant layer is formed on the wear surface of the wear-resistant plate 4-2 in a surfacing mode, and a wear-resistant coating is added.
Stud holes 9-1 for embedding wear-resistant studs 9 are formed in the middle of the surfaces of the first roller 1 and the second roller 2, wear-resistant block mounting grooves 10-1 for embedding wear-resistant blocks 10 are formed in the edges of the surfaces of the first roller 1 and the second roller 2, and the wear-resistant blocks 10 are continuously arranged along the circumference.
The continuous annular structure of the wear-resistant material is formed at the outermost edge of each roller, the coverage rate of the wear-resistant material is obviously improved, the wear resistance is improved, and after the structure of the basic annular plate 3 is added, the wear amount of the whole roller surface is consistent under the condition that the edge extrusion stress is greater than the middle part of the roller.
The first roller 1 is rotatably arranged in the first half frame body 12, the first half frame body 12 is an integral rigid component, the lower part of the first half frame body 12 is hinged with the base 14 through two first pin shafts 16, the two first pin shafts 16 are concentric with each other, and the axes of the pin shafts are parallel to the axes of the first roller 1;
the second roller 2 is rotatably arranged in a second half frame body 13, the second half frame body 13 is an integral rigid component, the lower part of the second half frame body is hinged with the base 14 through two second pin shafts 16, the two second pin shafts 16 are concentric with each other, and the axis of each pin shaft is parallel to the axis of the second roller 2;
two sides above the first roller 1 and the second roller 2 are respectively provided with a hydraulic cylinder 15, and the hydraulic cylinders 15 are used for hinging the upper parts of the two half frame bodies through pin shafts 16.
Two half support bodies and the roller are integrally rotatable along two concentric hinge pin shafts at the bottom of the two half support bodies, and after one of the half support bodies and the base are fixed, a fixed roller and a movable roller are formed.
The tensioning force of the hydraulic cylinder makes two roll surfaces close to each other, in order to prevent the two roll surfaces from contacting, a gasket group is arranged between a cylinder head of the hydraulic cylinder and a cylinder body, the retracted length of the hydraulic cylinder is controlled, so that the roll surfaces of the two rolls are spaced by a certain distance to serve as an original roll gap, when a material is fed into the roll surfaces of the two rolls, the material is meshed into and crushed by the two rolls rotating in opposite directions, the two rolls are kept away from each other by the force of the material on the two rolls, the material is counteracted by the pulling force of the hydraulic cylinder, under the action of the two forces of the material on the two rolls and the hydraulic cylinder pulling the two rolls back, certain feeding pressure is matched, and the process that the roll gap is slightly larger than the original roll gap when the two rolls work with the material is formed, and the ore is continuously and stably meshed into and crushed is formed.
Because the half frame body is hinged with the base through two concentric pin shafts, the axes of the two rollers are forced to be parallel by the rigidity of the frame body in the rotating process of the frame body along the hinged pin shafts, and the deflection of the axes of the rollers cannot be caused by the eccentric load of materials. Compared with a high-pressure roller mill with a traditional structure, the roller deviation correction of the hydraulic system to the axis deviation is not needed any more, so that the principle of the hydraulic system and the corresponding control principle are greatly simplified, and the reliability of the device is improved. In addition, when the pair roller system is maintained and overhauled, the half frame body is connected with the same roller, the half frame body can be turned over along the side direction of the hinged pin shaft between the bottom and the base, and the roller can be quickly detached from the equipment and installed in the equipment by matching with a split bearing seat arranged on the frame body. Thereby shorten the time of maintenance and repair by a wide margin, reduce the loss of stopping production, reduced workman intensity of labour simultaneously.
When each half frame body and each roller are installed, axial positioning is arranged, so that the half frame bodies and the rollers are fixed along the mutual positions of the axes. When the two half frame bodies are hinged with the base, the positioning device is also arranged along the axial direction of the roller. The above structure can ensure that the mutual position of the roller 1 and the roller 2 in the axial direction is fixed, and the two axes of the roller 1 and the roller 2 are forcibly kept parallel. Make roller 2 behind installation basic ring board 3 and wear-resisting ring board 4, form invariable clearance between two medial surfaces of wear-resisting ring board 4 and two outer terminal surfaces of roller 1, two rollers rotate in opposite directions and smash the ore, do not produce two roller axis mutual nonparallels because of the uneven distribution of roll surface material, lead to mutual scraping card.
The surfaces of the two rollers have a certain gap, when a material enters between the two rollers, the rollers 1 and 2 rotate in opposite directions to bite and crush ores, the force of the material on the rollers enables the first roller 1 and the second roller 2 to have a trend of being away from each other, at the moment, the distance between the two rollers is kept in a required range by the tension of a hydraulic cylinder, when the material is unevenly distributed along the surfaces of the rollers, the two axes of the first roller 1 and the second roller 2 have a trend of being not parallel, at the moment, the two axes of the first roller 1 and the second roller 2 are forced to be parallel by the overall rigidity of the half frame body 12 and the half frame body 13, so that the mutual positions of the first roller 1 and the second roller 2 along the axial direction are ensured to be unchanged, and the axes of the two rollers are always kept parallel. So as to avoid the abrasion-resistant circular ring plate 4 and the roller 2 from interfering due to the change of the mutual positions in the process of crushing ores by rotating the two rollers oppositely.
A multi-direction adjusting side baffle mechanism is arranged above the first roller 1 and the second roller 2, and comprises a bottom plate 25, wherein the bottom plate 25 and a wear plate 26 are connected through a bolt assembly 27 to form an integral side baffle, and are connected to the side surface of the feeding box 21 through a bolt assembly 23 and a pressure plate 24.
Corresponding threaded holes are formed in the positions, corresponding to the bolt assemblies 23, of the feeding box 21, holes 25-1 are formed in the positions, corresponding to the bolt assemblies 23, of the bottom plate 25, the diameters of the holes 25-1 are larger than the outer diameters of the corresponding handling holes of the bolt assemblies 23, and therefore the positions, in the horizontal direction and the vertical direction, of the bottom plate 25 and the wear plates 26 relative to the bolt assemblies 23 can be adjusted.
The spacer 22 can separate the bottom plate 25 from the side of the feed box by a required distance, and the spacer 22 is provided with an opening 22-1 for allowing the screw thread of the bolt assembly 21 to be opened, so that the position of the side baffle plate in the direction of the roller axis can be adjusted. Thereby enabling adjustment of the side dam formed by the bottom plate 25, wear plate 26 and bolt assembly 27 as a whole in three directions. After the adjustment is finished, the pressing plate 24 and the bottom plate 25 are pressed on the feeding box through the bolt assembly 23 passing through the hole 24-1 on the pressing plate 24. The hole 24-1 on the pressing plate 24 is the diameter of the corresponding hole for the bolt assembly 23, and the shape of the pressing plate 24 is larger than the diameter of the hole 25-1, so as to ensure the pressing effect of the bolt assembly 23.
Through the position adjustment in the horizontal and vertical directions, a smaller and uniform gap can be achieved between the arc 26-1 on the wear-resisting plate 26 and the outer arc surface of the basic annular plate 3; by adjusting in the direction of the roller axis, a small and uniform gap is achieved between the inner side of the wear plate 26 and the roller end faces of the roller system 29. Thereby the square opening at the lower part of the feeding box and the special-shaped open space between the upper parts of the two rollers are well sealed.
The gasket 22 may be inserted between the feed box 21 and the bottom plate 25 from the top down, or may be inserted between the feed box 21 and the bottom plate 25 from the side.
The worn part can be replaced independently, so that the square opening below the material column of the high-pressure roller mill and the special-shaped open space above the two rollers are well sealed, and the quick-wear part is convenient to replace.
The side shield mechanism of multidirectional regulation, its main mechanism is through the convenient regulation that the structure set up realization side shield for the three direction of X, Y, Z between two roll bodies to make the square bin outlet of high pressure roller mill feed portion and the open space between a pair of roll body top of the rotation in opposite directions of a roll body terminal surface mounting flange baffle, obtain the closure of ideal, eliminate the phenomenon that the material carries out broken in-process hourglass material from the feed portion to two roll body breakings, guarantee the crushing effect of equipment.
The lower part of the feed inlet of the side baffle is provided with a square opening, the square opening and the special-shaped open space on the surfaces of the two rollers are well sealed, and the relative moving parts can be adjusted to a tiny gap through the structure. In addition, the mechanism realizes the reduction of the clearance between related parts by an adjusting mode when the equipment is installed, does not need to increase the precision requirement of related dimensions when parts are machined, and therefore reduces the manufacturing cost. Thirdly, compared with other parts, the side baffle has smaller weight and is convenient to adjust. Fourthly, the position of the side baffle plate with fast abrasion can be independently replaced, and the whole service life of the side baffle plate is prolonged.
The feeding box 21 is arranged on a cross beam 33, two ends of the cross beam 33 are arranged at the upper ends of the upright columns 31 and 32, two bottom plane surfaces 33-1 and a plane surface 33-2 of the cross beam 33 are respectively connected to two upper plane surfaces of the upright columns 31 and 32, and a plane surface 35-3 of a box body 35 of the feeding box 21 is fixedly connected with the plane surface 33-3 of the cross beam 33 through a bolt assembly.
The feeding box is supported above the equipment roller body through the cross beam and the upright post, so that the interference of turning and opening of the roller system is eliminated during equipment maintenance, and the maintenance time and labor intensity of the roller system are greatly shortened. Meanwhile, the feeding part is convenient to install, has the functions of material flow regulation and dust overflow prevention, and provides powerful support for popularization of the high-pressure roller mill.
The box body 35 is provided with an adjusting plate 38, an adjusting device 39 of the adjusting plate 38, a wear-resistant chute 311 and a dust removal opening 312, the adjusting plate 38 is rotatably installed inside the box body 35, the adjusting device 39 is telescopic, one end of the adjusting device 39 is connected to the feeding box 21, the other end of the adjusting device 39 is connected to the adjusting plate 38, the adjusting plate 38 is driven to rotate within a certain angle range along a rotating shaft through the telescopic effect of the adjusting device 39, the side baffle plates 36 and the side baffle plates are respectively connected and fixed on the side surfaces of the feeding box 21, and the wear-resistant chute 311 is inserted into the box body 35 from the upper opening to the position of the adjusting plate 38. The adjusting device 39 is a hydraulic cylinder, an electric rod or a threaded rod.
The rotating shaft 38-6 on the adjusting plate 38 is arranged in the rotating shaft hole 35-4 of the box body 35, one end of the adjusting device 39 is connected to the adjusting device connecting point 35-2, the other end of the adjusting device 39 is connected to the adjusting device rotating shaft 38-7, and the rotating plate 38-1 is driven to rotate along the rotating shaft hole 35-4 within a certain range through the extension and contraction of the adjusting device 39, so that the function of adjusting the opening degree of a discharge port at the bottom of the feeding box 21 is achieved. The wear-resisting plate 38-2 is fixedly connected with the upper surface of the rotating plate 38-1, contacts materials, and can be repaired, maintained or disassembled for replacement after being worn.
An extension crank is arranged on the adjusting plate 38, an upper arc surface 38-4 and a lower arc surface 38-5 of the crank 38-3 are mutually concentric arcs, and the axis of the circle center is coincident with the rotation axis of the adjusting plate 38.
An opening 310-1 is provided in the seal housing 310 to allow the crank 38-3 of the actuator plate 38 to pass through the seal housing 310.
The rotating plate 38-2 is provided with an upper arc surface 38-4 and a lower arc surface 38-5 which are concentric with each other and are superposed with the axial lead of the rotating shaft hole 35-4, the sealing cover 310 is provided with an opening 310-1 corresponding to the crank 38-3, and in the process that the rotating plate 38-2 rotates within a certain range, gaps between the crank 38-3 and the opening 310-1 are kept unchanged, so that a foundation is provided for further good sealing of the gaps.
The wear-resistant chute 311 consists of a flange plane 311-1 and a wear-resistant pipe 311-2, is inserted into the box body 35, the flange plane 311-1 is fixedly connected with the flange plane 35-1, a gap exists between the outer surface of the wear-resistant pipe 311-2 and the inner wall surface of the box body 35 to form a vertical annular cavity 313, the upper part of the annular cavity 313 is sealed at the joint of the flange plane 311-1 at the upper part of the wear-resistant chute 311 and the flange plane 35-1 at the upper part of the box body 35, and the lower part is communicated with the gap between the adjusting plate 38 and the opening at the lower part of the wear-resistant chute 311. The dust removal port 312 is provided in the case 35 and communicates with the annular chamber space 313.
The material passes through the inner cavity of the wear-resistant pipe 311-2, when reaching the space between the upper parts of the two roller bodies of the high-pressure roller mill and the adjusting plate 38, dust begins to appear, the dust removing device is connected with the dust removing port 312, the dust raised by negative pressure passes through the annular cavity space 313 upwards from the space, and is pumped to the outside of the device through the dust removing port 312, so that the dust removing process is realized. At this time, due to the structural characteristic that the gap between the crank 38-3 and the opening 310-1 is not changed, the dust raising space can be well sealed, and the effect of optimizing the dust removing effect can be achieved.
The angle range of the rotation of the adjusting plate 38 along the rotating shaft is 0-60 DEG
Above-mentioned feeding case connection structure possesses following advantage: 1. when the roller system maintenance requires the frame body to be opened laterally, the feeding device does not need to be disassembled, and the equipment maintenance time is greatly shortened; 2. the opening of the lower opening of the feeding device is changed to achieve the purpose of adjusting the feeding amount and the material distribution state on the roller surface; 3. the distance between the dust extraction opening and the dust raising point is shortened, the sealing effect around the dust raising point is improved, and the dust removal effect is optimized; 4. the feeding device is changed into an independent module which can ensure that the material is stably and excessively fed from a field feeding point to the roller surface crushing area of the equipment, thereby simplifying the arrangement of a field process system, facilitating the process design and the process system installation. Finally, the special feeding device for the high-pressure roller mill is good in dust removal effect, convenient and fast in material distribution state adjustment, convenient to install and maintain, modular and special for the high-pressure roller mill.
It should be understood that the detailed description of the present invention is only for illustrating the present invention and is not limited by the technical solutions described in the embodiments of the present invention, and those skilled in the art should understand that the present invention can be modified or substituted equally to achieve the same technical effects; as long as the use requirements are met, the method is within the protection scope of the invention.
Claims (6)
1. A roller system structure of a high-pressure roller mill comprises a first roller (1) and a second roller (2) which are transversely arranged, and is characterized in that two end faces of the second roller (2) are respectively provided with a basic circular ring plate (3) with the diameter larger than that of the second roller (2), two opposite inner side faces of the two basic circular ring plates (3) are respectively provided with a wear-resistant circular ring plate (4), and two end faces of the first roller (1) are arranged on the inner sides of the wear-resistant circular ring plates (4); the basic circular ring plate (3) and the wear-resistant circular ring plate (4) are of detachable structures;
the basic circular ring plate (3) is connected to two outer end faces (11) of the second roller (2) through bolt assemblies (5); the wear-resistant circular ring plate (4) is connected to two inner end faces of the basic circular ring plate (3) through bolt assemblies (6);
the basic circular plate (3) consists of two or more arc sections; the wear-resistant circular ring plate (4) consists of two or more arc sections;
two sections of wear-resistant circular ring plates (4) are arranged on each section of basic circular ring plate (3);
one or more than one boss group (4-1) is arranged on each section of wear-resistant circular ring plate (4), and each boss group (4-1) comprises one or more than one boss;
the outer diameter of the basic circular ring plate (3) is larger than that of the second roller (2), and the inner diameter of the basic circular ring plate is smaller than that of the second roller (2);
each section of wear-resistant circular ring plate (4) comprises two rows of boss groups (4-1), and the connecting lines of the circle centers of two circular bosses in each row of boss group are parallel to each other;
hard alloy studs are embedded in the wear-resisting plates (4-2);
the length of the hard alloy stud is the same as the thickness of the wear-resisting plate (4-2);
a wear-resistant layer is welded on the wear surface of the wear-resistant plate (4-2) in a surfacing mode, and a wear-resistant coating is added;
stud holes (9-1) for embedding wear-resistant studs (9) are formed in the middle of the surfaces of the first roller (1) and the second roller (2), wear-resistant block mounting grooves (10-1) for embedding wear-resistant blocks (10) are formed in the edges of the surfaces of the first roller (1) and the second roller (2), and the wear-resistant blocks (10) are continuously arranged along the circumference;
when in installation, a section of wear-resistant circular ring plate (4) slides into the base circular ring plate (3) along a group of corresponding grooves (3-1) on the base circular ring plate (3) and enables the wear-resistant circular ring plate to be installed
The upper cambered surface (3-4) is matched with the bottom cambered surface (4-4) to connect the bolt component (6); then, installing another section of wear-resistant circular ring plate (4); an assembly body formed by a section of basic circular ring plate (3) and two sections of wear-resistant circular ring plates (4) is formed, and then the assembly body is assembled and fixed with two end faces of the second roller (2) by means of the positioning function between the convex ring (2-2) and the inner end face (3-5) of the basic circular ring plate (3) and the connecting and fastening function of the bolt assembly (5);
along with ore crushing of equipment, the abrasion loss of the abrasion-resistant circular ring plate (4) reaches an allowable limit, only the bolt assembly (5) needs to be loosened, the single arc-shaped section of the abrasion-resistant circular ring plate (4) slides out of the groove (3-1) along the radial direction of the axis of the roller, disassembly is realized, a new part is installed, and the abrasion-resistant circular ring plate is large in weight and size and does not need to be disassembled when the basic circular ring plate (3) does not need to be replaced;
the wear-resisting plate (4-2) in the wear-resisting circular ring plate (4) mainly plays a wear-resisting role, and the material is a wear-resisting steel plate with a small thickness and a high hardness grade and is directly cut into a single arc-shaped section by laser; then, the boss group (4-1) and the wear-resisting plate (4-2) are made of materials easy to process to form a wear-resisting circular ring plate (4); the procedures of round shaping and blanking, round shaping and turning, drilling, equally dividing and cutting and the like are omitted; compared with full-circle blanking, single-arc-section blanking can greatly improve the utilization rate of the plate; the working procedures of turning, drilling, cutting and the like are omitted, the restriction of the processing requirement on material selection is eliminated, and a high-hardness wear-resistant plate can be selected, so that the service life is prolonged, and the manufacturing cost and the manufacturing period are shortened;
the grooves (3-1) are formed in the periphery of each section of the basic circular ring plate (3), the outer ends of the grooves (3-1) are open, one groove (3-1) corresponds to one row of boss groups (4-1), the basic circular ring plate (3) on the inner side of the groove (3-1) protrudes towards the side of the end face of the second roller (2), and the periphery of the protruding part is an upper arc face (3-4) corresponding to the bottom arc face (4-4); the inner ring of the end face of the second roller (2) is provided with a convex ring (2-2), and the inner end face (3-5) of the basic circular ring plate (3) and the outer end face of the convex ring (2-2) are butt joint faces; the convex ring (2-2) is used for supporting the basic circular ring plate (3) and positioning the basic circular ring plate (3);
a boss group (4-1) arranged on the wear-resistant circular ring plate (4) can slide into the inner part from the outer circle of the basic circular ring plate (3) to the outer edge of the groove (3-1);
the wear-resisting plate (4-2) is embedded with a hard alloy stud, so that the wear-resisting service life is further prolonged, the wear-resisting plate is independently replaced when the wear reaches the limit, and the utilization rate of hard alloy materials is improved;
the first roller (1) is rotatably arranged in the first half frame body (12), the first half frame body (12) is an integral rigid component, the lower part of the first half frame body (12) is hinged with the base (14) through two first pin shafts (16), the two first pin shafts (16) are concentric with each other, and the axes of the pin shafts are parallel to the axes of the first roller (1);
the second roller (2) is rotatably arranged in a second half frame body (13), the second half frame body (13) is an integral rigid component, the lower part of the second half frame body is hinged with the base (14) through two second pin shafts (16), the two second pin shafts (16) are concentric with each other, and the axes of the pin shafts are parallel to the axis of the second roller (2);
two sides above the first roller (1) and the second roller (2) are respectively provided with a hydraulic cylinder (15), and the hydraulic cylinders (15) are used for hinging the upper parts of the two half frame bodies through pin shafts (16);
the two half frame bodies and the roller can integrally rotate along two concentric hinge pin shafts at the bottoms of the two half frame bodies and the roller, and a fixed roller and a movable roller are formed after one of the half frame bodies and the base are fixed;
the tensioning force of the hydraulic cylinder enables the two roll surfaces to be close to each other, in order to prevent the two roll surfaces from contacting, a gasket group is arranged between a cylinder head of the hydraulic cylinder and a cylinder body, the retracted length of the hydraulic cylinder is controlled, so that the roll surfaces of the two rolls are spaced by a certain distance to serve as an original roll gap, when a material is fed to the roll surfaces of the two rolls, the material is continuously engaged and crushed through the opposite rotation of the two rolls, the two rolls are mutually separated by the force of the material on the two rolls, the material is counteracted by the pulling force of the hydraulic cylinder, under the action of the two forces of the material on the two rolls and the hydraulic cylinder pulling the two rolls back, a certain feeding pressure is matched, and a process that the roll gap is slightly larger than the original roll gap when a two-roll strip material works, and the engaging and crushing of the material are continuously and stably on ores is formed;
because the half frame body is hinged with the base through two concentric pin shafts, the axes of the two rollers are forced to be parallel by the rigidity of the frame body in the process that the frame body rotates along the hinged pin shafts, and the deflection of the axes of the rollers cannot be caused by the eccentric loading of materials; compared with a high-pressure roller mill with a traditional structure, the roller deviation correction of the hydraulic system to the axis deviation is not needed any more, so that the principle of the hydraulic system and the corresponding control principle are greatly simplified, and the reliability of the equipment is improved; in addition, when the pair roller system is maintained and overhauled, the half frame body is connected with the same roller, the half frame body can be laterally overturned down along a hinged pin shaft between the bottom and the base, and the roller can be quickly disassembled from equipment and assembled in cooperation with a split bearing seat arranged on the frame body; therefore, the time for maintenance and repair is greatly shortened, the production stop loss is reduced, and the labor intensity of workers is reduced;
axial positioning is arranged when each half frame body and the roller are installed, so that the mutual positions of the half frame bodies and the roller along the axial line are fixed; when the two half frame bodies are hinged with the base, the positioning device is also arranged along the axial direction of the roller; the structure can ensure that the mutual positions of the first roller (1) and the second roller (2) are fixed along the axial direction, and the two axes of the first roller (1) and the second roller (2) are forcibly kept parallel; after the second roller (2) is provided with the basic circular ring plate (3) and the wear-resistant circular ring plate (4), a constant gap is formed between two inner side surfaces of the wear-resistant circular ring plate (4) and two outer end surfaces of the first roller (1), the two rollers rotate oppositely to crush ores, and mutual scraping caused by non-parallel axes of the two rollers due to uneven distribution of materials on the roller surfaces is avoided;
the surfaces of the two rollers have a certain gap, when materials enter between the two rollers, the first roller (1) and the second roller (2) rotate oppositely to bite and crush ores, the force of the materials on the rollers enables the first roller (1) and the second roller (2) to have a trend of being away from each other, the distance between the two rollers is kept within a required range by the tensile force of a hydraulic cylinder, when the materials are unevenly distributed along the roller surface, the two axes of the first roller (1) and the second roller (2) have a trend of being not parallel, at the moment, the two axes of the first roller (1) and the second roller (2) are forced to be kept parallel by the overall rigidity of the half frame body (12) and the half frame body (13), so that the mutual positions of the first roller (1) and the second roller (2) along the axial direction are ensured to be unchanged, and the axes of the two rollers are always kept parallel; so as to avoid interference between the wear-resistant circular ring plate (4) and the second roller (2) caused by the change of the mutual positions in the process of crushing ores by rotating the two rollers oppositely;
a multidirectional adjusting side baffle mechanism is arranged above the position between the first roller (1) and the second roller (2), the multidirectional adjusting side baffle mechanism comprises a bottom plate (25), the bottom plate (25) and a wear-resisting plate (26) are connected through a bolt assembly (27) to form an integral side baffle, and the integral side baffle is connected to the side surface of the feeding box (21) through a bolt assembly (23) and a pressing plate (24);
corresponding threaded holes are formed in the positions, corresponding to the bolt assemblies (23), of the feeding box (21), holes (25-1) are formed in the positions, corresponding to the bolt assemblies (23), of the bottom plate (25), the diameters of the holes (25-1) are larger than the outer diameters of the corresponding handling holes of the bolt assemblies (23), and therefore the positions, in the horizontal direction and the vertical direction, of the bottom plate (25) and the wear-resisting plates (26) relative to the bolt assemblies (23) can be adjusted;
the gasket (22) can separate the bottom plate (25) from the side face of the feeding box by a required distance, an opening (22-1) is formed in the gasket (22) to allow the screw thread of the bolt assembly (23) to be opened, and the position of the side baffle plate in the direction of the axis of the roller can be adjusted; thereby realizing the adjustment of the side baffle plate formed by the bottom plate (25), the wear-resisting plate (26) and the bolt assembly (27) along three directions; after the adjustment is finished, the bolt assembly (23) penetrates through a hole (24-1) in the pressing plate (24), and the pressing plate (24) and the bottom plate (25) are tightly pressed on the feeding box; the hole (24-1) on the pressing plate (24) is the diameter of a corresponding combining hole of the bolt component (23), and the appearance of the pressing plate (24) is larger than the diameter of the hole (25-1) so as to ensure the pressing effect of the bolt component (23);
through the position adjustment in the horizontal direction and the vertical direction, a smaller and uniform gap can be achieved between an arc (26-1) on the wear-resisting plate (26) and the outer arc surface of the basic circular plate (3); by adjusting along the axial direction of the roller, a smaller and uniform gap is achieved between the inner side surface of the wear-resisting plate (26) and the roller end surface of the roller system (29); thereby the special-shaped open space between the square opening at the lower part of the feeding box and the upper parts of the two rollers is well sealed;
the gasket (22) can be inserted between the feeding box (21) and the bottom plate (25) from top to bottom or inserted between the feeding box (21) and the bottom plate (25) from the side;
the worn part can be independently replaced, so that the square opening below the material column of the high-pressure roller mill and the special-shaped open space above the two rollers are well sealed, and the quick-wear part is convenient to replace;
the side baffle mechanism with multidirectional adjustment is mainly characterized in that the side baffle is convenient to adjust relative to X, Y, Z directions between two roller bodies through structural arrangement, so that an open space between a square discharge port of a feeding part of a high-pressure roller mill and the upper part of a pair of roller bodies which rotate in opposite directions and are provided with flanges and baffles on end faces of the roller bodies is sealed ideally, the phenomenon of material leakage in the process of feeding materials from the feeding part to the two roller bodies for crushing is basically eliminated, and the crushing effect of equipment is ensured;
the lower part of the feed inlet of the side baffle is provided with a square opening, the square opening and the special-shaped open space on the surfaces of the two rollers are well sealed, and the relative moving parts can be adjusted to a tiny gap through the structure; in addition, the mechanism realizes the reduction of the clearance between related parts by an adjusting mode when equipment is installed, and does not need to improve the precision requirement of related dimensions when parts are processed, thereby reducing the manufacturing cost; thirdly, compared with other parts, the side baffle has smaller weight and is convenient to adjust; fourthly, the position of the side baffle plate with fast abrasion can be independently replaced, and the whole service life of the side baffle plate is prolonged.
2. A high pressure roller mill roller system construction according to claim 1, characterized in that the first roller (1) and the second roller (2) are of the same diameter and width.
3. The roller system structure of the high-pressure roller mill according to claim 1 is characterized in that the first roller (1) and the second roller (2) are embedded with wear-resistant studs (9) in the middle and wear-resistant blocks (10) at the edges.
4. A high pressure roller mill roll system structure according to claim 1, characterized in that the basic ring plate (3) has an outer diameter larger than the outer diameter of the second roller (2) and an inner diameter smaller than the outer diameter of the second roller (2); the outer diameter of the wear-resistant circular ring plate (4) is the same as that of the basic circular ring plate (3); the inner diameter of the wear-resistant circular ring plate (4) is smaller than the outer diameter of the second roller (2) and larger than the inner diameter of the basic circular ring plate (3).
5. The roller system structure of the high pressure roller mill according to claim 1 is characterized in that the difference between the radius of the outer circle of the wear-resistant circular ring plate (4) and the radius of the outer circle of the second roller (2) is larger than the surface distance between the first roller (1) and the second roller (2), and the two inner surfaces of the wear-resistant circular ring plate (4) and the two outer end surfaces (11) of the first roller (1) have a partial overlapping area and have a gap.
6. The roller system structure of the high pressure roller mill according to claim 1 is characterized in that stud holes (9-1) for embedding wear-resistant studs (9) are arranged in the middle of the surfaces of the first roller (1) and the second roller (2), wear-resistant block mounting grooves (10-1) for embedding wear-resistant blocks (10) are arranged on the edges of the surfaces of the first roller (1) and the second roller (2), and the wear-resistant blocks (10) are continuously arranged along the circumference.
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| CN202011151733.7A CN112295659B (en) | 2020-10-26 | 2020-10-26 | Roller system structure of high-pressure roller mill |
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| CN202011151733.7A CN112295659B (en) | 2020-10-26 | 2020-10-26 | Roller system structure of high-pressure roller mill |
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| US11612895B2 (en) * | 2021-06-23 | 2023-03-28 | Metso Outotec USA Inc. | Grinding roll and a grinding assembly comprising the grinding roll |
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| WO2019197240A1 (en) * | 2018-04-12 | 2019-10-17 | Thyssenkrupp Industrial Solutions Ag | Grinding roller and roller press |
| WO2020143997A1 (en) * | 2019-01-09 | 2020-07-16 | Thyssenkrupp Industrial Solutions Ag | Grinding roller having peripheral elements |
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| US8708264B2 (en) * | 2012-04-20 | 2014-04-29 | Metso Minerals (Sweden) Ab | Roller crusher having at least one roller comprising a flange |
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| CN1894044A (en) * | 2003-11-22 | 2007-01-10 | Khd洪保德韦达克有限公司 | Grinding roll for pressure grinding granular material |
| CN104254400A (en) * | 2012-04-20 | 2014-12-31 | 美卓矿物工业公司 | Crushing roll with edge protection |
| CN204051774U (en) * | 2014-08-06 | 2014-12-31 | 成都大宏立机器股份有限公司 | Roller of high-pressure roller mill |
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