CN108906232B - Energy-conserving vertical mill that building engineering used - Google Patents

Energy-conserving vertical mill that building engineering used Download PDF

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Publication number
CN108906232B
CN108906232B CN201810896567.XA CN201810896567A CN108906232B CN 108906232 B CN108906232 B CN 108906232B CN 201810896567 A CN201810896567 A CN 201810896567A CN 108906232 B CN108906232 B CN 108906232B
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China
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arc
shaped
groove
sieve plate
grinding
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CN108906232A (en
Inventor
李娜
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Jiangsu QIHANG Grinding Technology Co., Ltd
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Jiangsu Qihang Grinding Technology Co Ltd
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Priority to CN202011344965.4A priority Critical patent/CN112452448A/en
Priority to CN201810896567.XA priority patent/CN108906232B/en
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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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
    • B02C15/004—Shape or construction of rollers or balls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
    • B02C2023/165—Screen denying egress of oversize material

Abstract

The invention belongs to the technical field of grinding discs, and particularly relates to an energy-saving vertical grinding disc for constructional engineering, which comprises a lining, a conical grinding roller, a rotary column, a grinding disc mechanism and a supporting rotary disc, wherein a first arc-shaped sieve plate and a second arc-shaped sieve plate can sieve cement material particles into three cement material particle areas of large, medium and small, so that the lining can simultaneously extrude the small cement material particles, the medium cement material particles and the large cement material particles, and the efficiency of crushing the cement materials with different sizes is improved. In addition, the sound energy and the heat energy generated by the conical grinding roller which is provided with the first arc-shaped sieve plate and the second arc-shaped sieve plate and matched in design are relatively small in the grinding process, so that part of electric energy is saved, and the energy-saving effect is achieved. The invention has simple structure and better use effect.

Description

Energy-conserving vertical mill that building engineering used
Technical Field
The invention belongs to the technical field of grinding discs, and particularly relates to an energy-saving vertical grinding disc for constructional engineering.
Background
The existing vertical mill is popular grinding equipment for manufacturing cement powder, compared with a traditional ball milling system, the vertical mill has high milling efficiency, and the power consumption of the vertical mill is only fifty percent to sixty percent of that of the ball mill; in addition, the vertical mill also has the advantages of integrating the processes of crushing, grinding, drying, selecting powder and the like, and greatly simplifying the vertical production process flow. However, the electric energy used for crushing the materials in the vertical mill is only partial, and the other part of the electric energy is consumed in other aspects, mainly converted into heat energy and sound energy to disappear, which is a great waste. In order to reduce certain electric energy loss and achieve the effect of energy saving under the condition of not influencing the milling efficiency, the part of converting electric energy into sound energy can be improved; the vertical grinding disc for reducing the acoustic energy loss is designed to achieve the energy-saving effect.
The invention designs an energy-saving vertical grinding disc for constructional engineering to solve the problems.
Disclosure of Invention
In order to solve the defects in the prior art, the invention discloses an energy-saving vertical grinding disc for constructional engineering, which is realized by adopting the following technical scheme.
In the description of the present invention, it should be noted that the terms "inside", "below", "upper" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention usually place when using, and are only used for convenience of description and simplification of description, but do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed in a specific orientation or be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
The utility model provides an energy-conserving vertical mill dish that building engineering used which characterized in that: the grinding disc mechanism comprises a lining, a conical grinding roller, a rotating column, a grinding disc mechanism and a supporting rotary disc, wherein the grinding disc mechanism is arranged on the upper disc surface of the supporting rotary disc; one end of the rotary column is provided with a conical grinding roller; a lining is fixedly arranged on the outer conical surface of the conical grinding roller; the grinding roller combination is composed of a lining, a conical grinding roller and a rotating column; three groups of grinding roller combinations are uniformly distributed on the upper side of the grinding disc mechanism along the circumferential direction; and a lining in the grinding roller combination is matched with the grinding disc mechanism.
The grinding disc mechanism comprises a grinding disc body, an arc-shaped sliding block sliding groove, an annular lining disc, a second arc-shaped guide groove, a first sieve plate sliding groove, a second sieve plate sliding groove, a first sieve plate sliding through groove, a second sieve plate sliding through groove, an annular grinding groove and a screening mechanism, wherein the grinding disc body is fixedly arranged on the upper disc surface of the supporting rotary disc; the surface of the grinding disc body, which is far away from the supporting turntable, is provided with an annular grinding groove; the annular lining disc is fixedly arranged on the bottom groove surface of the annular grinding groove, the inner circular surface of the annular lining disc is connected with the inner circular surface of the annular grinding groove, and the outer circular surface of the annular lining disc is connected with the outer circular surface of the annular grinding groove; six second sieve plate sliding through grooves are uniformly formed in the disc surface of the annular lining disc along the circumferential direction; six first sieve plate sliding through grooves are uniformly formed in the disc surface of the annular lining disc along the circumferential direction; the first sieve plate sliding through groove is positioned between the inner circular surface of the annular lining disc and the second sieve plate sliding through groove; six arc-shaped sliding block sliding grooves are uniformly formed in the grinding disc body along the circumferential direction; a first arc-shaped guide groove is formed in the inner arc-shaped groove surface of each arc-shaped sliding block sliding groove; a second arc-shaped guide groove is formed in the outer arc-shaped groove surface of each arc-shaped sliding block sliding groove; a first sieve plate sliding groove and a second sieve plate sliding groove which are communicated are formed between the top groove surface of each arc-shaped sliding block sliding groove and the bottom groove surface of the annular grinding groove; the first sieve plate sliding groove is positioned between the second sieve plate sliding groove and the inner circular surface of the annular grinding groove; a first sieve plate sliding groove at each arc-shaped sliding block sliding groove is communicated with a corresponding first sieve plate sliding through groove on the annular lining disc, and the first sieve plate sliding groove is the same as the first sieve plate sliding through groove in size; a second sieve plate sliding groove at each arc-shaped sliding block sliding groove is communicated with a corresponding second sieve plate sliding through groove on the annular lining disc, and the second sieve plate sliding groove is the same as the second sieve plate sliding through groove in size; the six screening mechanisms are respectively arranged in the six arc-shaped sliding block sliding grooves and a first arc-shaped guide groove, a second sieve plate sliding groove and a first sieve plate sliding groove which are related to the arc-shaped sliding block sliding grooves; the screening mechanism is matched with a bushing in the grinding roller combination.
The screening mechanism comprises a second arc-shaped sieve plate, a first arc-shaped sieve plate, arc-shaped sliding blocks, supporting columns, a first arc-shaped guide block, a first spring, a second arc-shaped guide block, a second spring, a second square sieve hole, a first square sieve hole and a column hole, wherein the arc-shaped sliding blocks are arranged in arc-shaped sliding block sliding grooves of the grinding disc body in a sliding fit mode; two through column holes are formed in the arc-shaped sliding block; one end of each of the two support columns is fixedly arranged on the top groove surface of the arc-shaped sliding block sliding groove, and the other end of each of the two support columns respectively penetrates through two column holes in the arc-shaped sliding block and is fixedly arranged on the bottom groove surface of the arc-shaped sliding block sliding groove; a first arc-shaped guide block is fixedly arranged on the inner arc surface of the arc-shaped slide block; the first arc-shaped guide blocks are arranged in the corresponding first arc-shaped guide grooves in a sliding fit manner; one ends of the two first springs are arranged on the first arc-shaped guide block, and the other ends of the two first springs are arranged on the bottom groove surface of the first arc-shaped guide groove; the two first springs are positioned in the first arc-shaped guide groove; a second arc-shaped guide block is fixedly arranged on the outer arc surface of the arc-shaped slide block; the second arc-shaped guide blocks are arranged in the corresponding second arc-shaped guide grooves in a sliding fit manner; one end of each second spring is arranged on the second arc-shaped guide block, and the other end of each second spring is arranged on the bottom groove surface of the second arc-shaped guide groove; the three second springs are positioned in the second arc-shaped guide groove; the first arc-shaped sieve plate is fixedly arranged on the upper surface of the arc-shaped sliding block, and one end of the first arc-shaped sieve plate, which is far away from the arc-shaped sliding block, penetrates through a corresponding first sieve plate sliding groove on the grinding disc body and a corresponding first sieve plate sliding through groove on the annular lining disc; the second arc-shaped sieve plate is fixedly arranged on the upper surface of the arc-shaped sliding block, and one end of the second arc-shaped sieve plate, which is far away from the arc-shaped sliding block, penetrates through a corresponding second sieve plate sliding groove on the grinding disc body and a corresponding second sieve plate sliding through groove on the annular lining disc; a plurality of first square sieve pores which are communicated are uniformly arranged on the inner arc surface of the first arc-shaped sieve plate along the circumferential direction; a plurality of second square sieve holes which are communicated are uniformly formed in the inner arc surface of the second arc-shaped sieve plate along the circumferential direction; the size of the first square sieve pore is larger than that of the second square sieve pore.
The first arc-shaped sieve plate and the second arc-shaped sieve plate are matched with a bushing in the grinding roller combination; the annular lining disc is matched with a lining in the grinding roller assembly.
As a further improvement of the technology, the end of the supporting turntable far away from the grinding table body is connected with a driving mechanism. Then, after the driving mechanism acts, the driving mechanism drives the grinding disc body to rotate through the supporting turntable.
As a further improvement of the technology, the end of the rotary column far away from the conical grinding roller is connected with a pressurizing mechanism. After the pressurizing mechanism acts, the pressurizing mechanism drives the conical grinding roller to move downwards through the rotating column, and the lining can be in frictional contact with the annular lining disc.
As a further improvement of the technology, the two side end corners of one end of the first arc-shaped sieve plate, which is far away from the arc-shaped sliding block, are rounded corners. In order to facilitate the grinding disc body to drive the first arc-shaped sieve plate to rotate, the fillets on two sides of one end, far away from the arc-shaped sliding block, of the first arc-shaped sieve plate can be better in extrusion contact with the lining, and abrasion in the extrusion process is reduced.
As a further improvement of the technology, the two side end corners of one end of the second arc-shaped sieve plate, which is far away from the arc-shaped sliding block, are rounded corners. In order to facilitate the grinding disc body to drive the second arc-shaped sieve plate to rotate, the round corners on two sides of one end, far away from the arc-shaped sliding block, of the second arc-shaped sieve plate can be better in extrusion contact with the lining, and abrasion in the extrusion process is reduced.
As a further improvement of the technology, the distance between two adjacent first arc-shaped sieve plates is smaller than the distance between two side wall surfaces of the first sieve holes. Such design guarantees that the clearance between two adjacent first arc sieve boards allows the size of passing through the cement material granule to be less than the size that first sieve mesh allowed to pass through the cement material granule, just so can maintain the cement material granule size of crossing clearance between two adjacent first arc sieve boards and first sieve mesh and reach the design requirement.
As a further improvement of the present technology, the first spring and the second spring are both compression springs; when first spring and second spring all uncompressed, first arc guide block is located the top of first arc guide slot, and second arc guide block is located the top of second arc guide slot, and the one end that arc slider was kept away from to first arc sieve stretches out first sieve slip logical groove and first square sieve mesh is located on the dish face of hanging of annular bushing, and the one end that arc slider was kept away from to second arc sieve stretches out second sieve slip logical groove and second square sieve mesh is located on the dish face of hanging of annular bushing.
The lining disc and the lining sleeve have the effects that after the lining sleeve is contacted with the lining disc, under the pressure of the pressure mechanism, relatively large pressure exists between the lining sleeves, and after cement material particles enter the lining sleeve and the lining disc, the lining sleeve and the lining disc are mutually extruded and matched to grind the cement material particles into powder reaching the standard. In addition, the lining disc and the lining sleeve are relatively worn and can be replaced after being used for a period of time.
For the bush in the grinding roller combination, at the bush and the mutual extrusion crocus in-process of lining dish, the mill body is driving the lining dish rotatory, so at extrusion crocus in-process, the lining dish can drive the bush rotatory around the axis of rotary column, and the bush drives conical grinding roller and rotary column rotation.
The bush matched with flow in first arc sieve and second arc sieve and the grinding roller combination: firstly, when a bushing in the grinding roller combination does not move downwards and is mutually extruded with a bushing disc for grinding powder, the first arc-shaped sieve plate and the second arc-shaped sieve plate are not pressed downwards; at the moment, the first spring and the second spring are not compressed, the first arc-shaped guide block is located at the top end of the first arc-shaped guide groove, the second arc-shaped guide block is located at the top end of the second arc-shaped guide groove, one end, far away from the arc-shaped sliding block, of the first arc-shaped sieve plate stretches out the first sieve plate sliding through groove, the first square sieve hole is located on the upper disc surface of the annular lining disc, and one end, far away from the arc-shaped sliding block, of the second arc-shaped sieve plate stretches out the second sieve plate sliding through groove, and the second square. Second, when the bush in the grinding roller combination and the in-process of the mutual extrusion crocus of lining dish, because the grinding roller body drives first arc sieve and second arc sieve rotation, the fillet of first arc sieve and second arc sieve will be extruded to the bush so, first arc sieve and second arc sieve are extruded the downstream, first arc sieve and second arc sieve make the arc slider downstream, first arc guide block and second arc guide block follow the arc slider motion, first spring and second spring are compressed. Thirdly, when the first arc-shaped sieve plate is extruded downwards, the end face of one end of the first arc-shaped sieve plate, which is far away from the arc-shaped sliding block, and the upper disc surface of the annular lining disc are in a coplanar state; after the second arc-shaped sieve plate is extruded downwards, when the end face of one end, far away from the arc-shaped slide block, of the second arc-shaped sieve plate and the upper disc surface of the annular lining disc are in a coplanar state, the arc-shaped slide block moves downwards to a position where the end face of the second arc-shaped sieve plate is in contact with the bottom groove surface of the arc-shaped slide block sliding groove, and the arc-shaped slide block cannot move downwards continuously at the moment. Fourthly, after the first arc-shaped sieve plate and the second arc-shaped sieve plate are not extruded by the bushings any more, under the reset action of the first spring and the second spring, the first arc-shaped guide block and the second arc-shaped guide block enable the arc-shaped sliding block to move and reset to the original position, and the first arc-shaped sieve plate and the second arc-shaped sieve plate move upwards to the original position.
The size of first side sieve mesh is greater than the design of the size of second side sieve mesh and lies in: the cement material particles fall to the middle position of the grinding disc body, then the rotary grinding disc body drives the cement material particles to rotate, and the cement material particles move to the periphery of the grinding disc body under the action of centrifugal force. At the in-process of cement material granule to the peripheral motion of mill disk body, big cement material granule fails to pass through first square sieve mesh, and medium cement material granule and little cement material granule pass through first square sieve mesh, but medium cement material granule fails to pass through second square sieve mesh, and little cement material granule can pass through second square sieve mesh. In a word, under the screening of first arc sieve board and second arc sieve board, big cement material granule is detained between first arc sieve board and the interior disc of ring mill groove, and medium cement material granule is detained between first arc sieve board and second arc sieve board, and little cement material granule is detained between second arc sieve board and the outer disc of ring mill groove.
One end of each of the two support columns is fixedly arranged on the top groove surface of the arc-shaped sliding block sliding groove, and the other end of each of the two support columns respectively penetrates through two column holes in the arc-shaped sliding block and is fixedly arranged on the bottom groove surface of the arc-shaped sliding block sliding groove; the design is that the arc-shaped sliding block can slide on the supporting column; in addition, the support column can well play a good supporting role in the grinding disc body on the upper part of the arc-shaped sliding block sliding groove, and the grinding disc body on the upper part of the arc-shaped sliding block sliding groove is prevented from deforming under heavy pressure.
When the vertical grinding disc does not work, the grinding roller combination is positioned on the upper side of the grinding disc body, and a lining in the grinding roller combination is not in contact with the first arc-shaped sieve plate and the second arc-shaped sieve plate; first spring and second spring all uncompressed, first arc guide block is located the top of first arc guide slot, second arc guide block is located the top of second arc guide slot, the one end that first arc sieve kept away from the arc slider stretches out first sieve slip logical groove and first square sieve mesh and is located on the dish face is coiled to annular bushing, the one end that the arc slider was kept away from to second arc sieve stretches out second sieve slip logical groove and second square sieve mesh and is located on the dish face is coiled to annular bushing.
In the working process of the conical grinding roller, the diameter of the outer conical surface of the conical grinding roller close to the middle of the grinding disc body is smaller than that of the outer conical surface of the conical grinding roller close to the outer circular surface of the grinding disc body, the conical end of the conical grinding roller close to the middle of the grinding disc body is a front conical end, and the conical end of the conical grinding roller close to the outer circular surface of the grinding disc body is a rear conical end. That is, the diameter of the outer conical surface of the front cone end of the conical grinding roller is smaller than the diameter of the outer conical surface of the rear cone end of the conical grinding roller.
When the vertical grinding disc of the invention grinds cement materials, the driving mechanism acts and drives the grinding disc body and the annular lining disc to rotate through the supporting turntable; then, the material conveying mechanism on the upper side of the grinding disc body drops the cement materials at the middle position of the grinding disc body, the rotating grinding disc body drives the cement material particles to rotate, and the cement material particles move to the periphery of the grinding disc body under the action of centrifugal force. Under the screening effect of first arc sieve and second arc sieve, big cement material granule is detained between first arc sieve and the interior disc of ring mill groove, and medium cement material granule is detained between first arc sieve and second arc sieve, and little cement material granule is detained between second arc sieve and the outer disc of ring mill groove.
Then, the pressurizing mechanism acts and drives the conical grinding roller to move downwards through the rotating column, the bushing moves downwards along with the conical grinding roller and can be in frictional contact with the annular lining disc, and the bushing extrudes the corresponding first arc-shaped sieve plate and the second arc-shaped sieve plate to the position where the annular lining disc is coplanar. Because the grinding disc body drives first arc sieve and second arc sieve rotatory, the fillet of first arc sieve and second arc sieve will be extruded to the bush so, and first arc sieve and second arc sieve are extruded downstream, and first arc sieve and second arc sieve make the arc slider move down, and first arc guide block and second arc guide block follow the motion of arc slider, and first spring and second spring are compressed. When the first arc-shaped sieve plate is extruded downwards, the end surface of one end of the first arc-shaped sieve plate, which is far away from the arc-shaped sliding block, and the upper disc surface of the annular lining disc are in a coplanar state; after the second arc-shaped sieve plate is extruded downwards, when the end face of one end, far away from the arc-shaped slide block, of the second arc-shaped sieve plate and the upper disc surface of the annular lining disc are in a coplanar state, the arc-shaped slide block moves downwards to a position where the end face of the second arc-shaped sieve plate is in contact with the bottom groove surface of the arc-shaped slide block sliding groove, and the arc-shaped slide block cannot move downwards continuously at the moment. Just so can guarantee the bush at the in-process with annular bushing plate mutual extrusion crocus, the upper surface of annular bushing plate forms a flat quotation that does not have the cell surface, and the cement material on the annular bushing plate can not be extruded the second sieve slip of annular bushing plate and lead to the groove and first sieve slip is led to the groove in, the bush of being convenient for can better cooperate the crocus with annular bushing plate. After a set of first arc sieve and second arc sieve extruded by the bush, first arc sieve and second arc sieve extruded before no longer receive the extrusion of bush, under the reset action of first spring and second spring, first arc guide block and second arc guide block make the arc slider remove and reset to the home position, first arc sieve and second arc sieve rebound to the home position, and the screening of first arc sieve and second arc sieve continues to screen the cement material.
The lining cover is pushed down with first arc sieve and second arc sieve back, and the cement granule that first arc sieve of bush crocus and second arc sieve department were screened out is extruded each other to the bush and lining dish. Because the conical grinding roller and the lining are in a conical state, and the diameter of the outer conical surface of the front conical end of the conical grinding roller is smaller than that of the outer conical surface of the rear conical end of the conical grinding roller, the diameter of the outer conical surface of the lining positioned at the front conical end of the conical grinding roller is smaller than that of the outer conical surface positioned at the rear conical lining end of the conical grinding roller. In the mutual matching and grinding process of the bushing and the annular lining disc, the front end part of the bushing extrudes large cement material particles retained between the inner circular surfaces of the first arc-shaped sieve plate and the annular grinding groove, the middle end part of the bushing extrudes medium cement material particles retained between the first arc-shaped sieve plate and the second arc-shaped sieve plate, and the rear end part of the bushing extrudes small cement material particles retained between the second arc-shaped sieve plate and the outer circular surface of the annular grinding groove. The design can enable the lining to better extrude cement materials with different grain sizes, and the lining can simultaneously extrude small cement material grains, medium cement material grains and large cement material grains, thereby improving the efficiency of crushing the cement materials with different grain sizes; in the process of crushing cement materials by the conical grinding roller, the vibration generated by particle crushing is determined by the particle crushing condition, and because the conical grinding roller applies pressure to large, medium and small cement material particles simultaneously, the vibration generated after the large cement material particles are crushed is inhibited by the small cement material particle crushing condition, so that the vibration of the conical grinding roller is determined by the small cement particle crushing condition, and further the sound energy and heat energy loss generated by the vibration of the conical grinding roller are determined by the small cement particle crushing condition. Compare in cylindrical grinding roller crocus cement material granule, cylindrical grinding roller crocus needs to extrude breakage into medium cement material granule with big cement material granule earlier, then cylindrical grinding roller again with medium cement material granule extrusion breakage into little cement material granule, so cylindrical grinding roller vibrations are basically decided by the broken condition of big cement material granule to the acoustic energy and the heat energy loss that cylindrical grinding roller vibrations produced are basically decided by the broken condition of big cement material granule. Because the sound energy and heat energy loss generated by the vibration of the conical grinding roller are determined by the crushing of small cement particles, the sound energy and heat energy loss generated by the vibration of the cylindrical grinding roller are basically determined by the crushing condition of large cement material particles, and the vibration amplitude of the grinding roller is far smaller than the vibration amplitude of the grinding roller due to the crushing of the large cement material particles due to the crushing of the small cement particles, the loss of the conical grinding roller with the design matching of the first arc-shaped sieve plate and the second arc-shaped sieve plate is smaller than that of the cylindrical grinding roller.
After the conical grinding roller stops working, the driving mechanism and the pressurizing mechanism stop working, the grinding disc body stops rotating, the conical grinding roller and the lining return to the original position under the driving of the pressurizing mechanism, the conical grinding roller and the lining do not extrude the annular lining disc any more, and the first arc-shaped sieve plate and the second arc-shaped sieve plate are not extruded by the lining any more. After the first arc-shaped sieve plate and the second arc-shaped sieve plate are not extruded by the bushings any longer, under the reset action of the first spring and the second spring, the first arc-shaped guide block and the second arc-shaped guide block enable the arc-shaped sliding block to move and reset to the original position, and the first arc-shaped sieve plate and the second arc-shaped sieve plate move upwards to the original position.
Compared with the traditional grinding disc technology, the method has the advantages that the large cement material particles are retained between the first arc-shaped sieve plate and the inner circular surface of the annular grinding groove by utilizing the screening effect of the first arc-shaped sieve plate and the second arc-shaped sieve plate, the medium cement material particles are retained between the first arc-shaped sieve plate and the second arc-shaped sieve plate, and the small cement material particles are retained between the second arc-shaped sieve plate and the outer circular surface of the annular grinding groove; the design of cement granule screening can make the bush extrude the cement material of the different particle sizes of crocus better, and the bush can extrude little cement material granule, medium cement material granule and big cement material granule simultaneously to the efficiency of the cement material of broken different size granules has been improved. In addition, compared with the sound energy and heat energy loss generated by the vibration of the cylindrical grinding roller, the sound energy and heat energy loss generated by the vibration of the conical grinding roller is determined by the crushing of small cement particles, and the crushing of the small cement particles ensures that the vibration amplitude of the grinding roller is far smaller than that of the grinding roller caused by the crushing of large cement material particles, so that the loss of the conical grinding roller with the design matching of the first arc-shaped sieve plate and the second arc-shaped sieve plate is smaller than that of the cylindrical grinding roller. The conical grinding roller with the first arc-shaped sieve plate and the second arc-shaped sieve plate which are designed and matched can reduce the part of electric energy converted into sound energy and heat energy in the grinding process, thereby achieving the effect of energy conservation. The invention has simple structure and better use effect.
Drawings
Fig. 1 is an overall schematic view of a vertical grinding disc.
Fig. 2 is an overall top view schematic diagram of a vertical grinding disc.
Fig. 3 is a cross-sectional schematic view of the abrasive disc mechanism.
Fig. 4 is a partially enlarged schematic view of fig. 3.
Fig. 5 is a schematic sectional view of an annular liner disk.
Fig. 6 is a schematic cross-sectional view of a grinding disc body.
Fig. 7 is a schematic view of the structure of an annular liner disk.
Fig. 8 is a schematic cross-sectional view of the second arcuate screen panel and the first arcuate screen panel in cooperation with the annular liner.
Fig. 9 is a schematic cross-sectional view of the first arcuate guide block being mounted in the first arcuate guide channel by a sliding fit.
Fig. 10 is a partially enlarged schematic view of fig. 9.
Fig. 11 is a schematic cross-sectional view of the second arcuate guide block being mounted in the second arcuate guide channel by a sliding fit.
Fig. 12 is a partially enlarged schematic view of fig. 11.
FIG. 13 is an overall (first) schematic view of the screening mechanism.
FIG. 14 is a schematic view of the entire screening mechanism.
Fig. 15 is a schematic view of a first arcuate guide block installation.
Fig. 16 is a second arcuate guide block mounting schematic.
Figure 17 is a schematic view of a first arcuate screen panel and a second arcuate screen panel.
Figure 18 is a schematic view of the grinding operation of the bushing and grinding disc pressing against each other.
Number designation in the figures: 1. a bushing; 2. a conical grinding roll; 3. turning the column; 4. a grinding disc mechanism; 5. a support turntable; 6. a grinding disc body; 7. an arc-shaped sliding block sliding groove; 8. a first arcuate guide slot; 9. a second arcuate guide slot; 10. a second sieve plate sliding groove; 12. a first sieve plate sliding groove; 15. the second sieve plate is provided with a sliding through groove; 16. the first sieve plate is provided with a sliding through groove; 17. a ring-shaped grinding groove; 18. an annular liner disk; 20. a screening mechanism; 21. a second arc-shaped sieve plate; 22. a first arcuate screen deck; 23. an arc-shaped sliding block; 24. a support pillar; 25. a first arc-shaped guide block; 26. a first spring; 27. a second arc-shaped guide block; 28. a second spring; 30. second square sieve pores; 35. a first square sieve pore; 40. round corners; 41. and (4) column holes.
Detailed Description
As shown in fig. 1 and 2, it comprises a lining 1, a conical grinding roller 2, a rotary column 3, a grinding disc mechanism 4 and a supporting rotary disc 5, as shown in fig. 1, wherein the grinding disc mechanism 4 is mounted on the upper disc surface of the supporting rotary disc 5; one end of the rotary column 3 is provided with a conical grinding roller 2; a lining 1 is fixedly arranged on the outer conical surface of the conical grinding roller 2; a grinding roller combination is composed of a lining 1, a conical grinding roller 2 and a rotary column 3; as shown in fig. 1 and 2, three groups of grinding roller combinations are uniformly distributed on the upper side of the grinding disc mechanism 4 along the circumferential direction; the lining 1 in the grinding roller combination is matched with a grinding disc mechanism 4.
As shown in fig. 3, 5, 7, and 13, the grinding disc mechanism 4 includes a grinding disc body 6, an arc-shaped slider sliding groove 7, an annular lining disc 18, a second arc-shaped guide groove 9, a first arc-shaped guide groove 8, a first sieve plate sliding groove 12, a second sieve plate sliding groove 10, a first sieve plate sliding through groove 16, a second sieve plate sliding through groove 15, an annular grinding groove 17, and a screening mechanism 20, as shown in fig. 1, wherein the grinding disc body 6 is fixedly mounted on an upper disc surface of the support turntable 5; as shown in fig. 6, the disc surface of the grinding disc body 6 far away from the supporting turntable 5 is provided with an annular grinding groove 17; as shown in fig. 3 and 5, the annular lining disk 18 is fixedly arranged on the bottom groove surface of the annular grinding groove 17, the inner circular surface of the annular lining disk 18 is connected with the inner circular surface of the annular grinding groove 17, and the outer circular surface of the annular lining disk 18 is connected with the outer circular surface of the annular grinding groove 17; as shown in fig. 5 and 7, six second sieve plate sliding through grooves 15 are uniformly formed in the disc surface of the annular lining disc 18 along the circumferential direction; six first sieve plate sliding through grooves 16 are uniformly formed in the disc surface of the annular lining disc 18 along the circumferential direction; the first sieve plate sliding through groove 16 is positioned between the inner circular surface of the annular liner disc 18 and the second sieve plate sliding through groove 15; as shown in fig. 6 and 9, six arc-shaped slider sliding grooves 7 are uniformly formed in the grinding disc body 6 along the circumferential direction; as shown in fig. 5 and 6, a first arc-shaped guide groove 8 is formed on the inner arc-shaped groove surface of each arc-shaped slide block sliding groove 7; a second arc-shaped guide groove 9 is formed in the outer arc-shaped groove surface of each arc-shaped sliding block sliding groove 7; a first sieve plate sliding groove 12 and a second sieve plate sliding groove 10 which are communicated are formed between the top groove surface of each arc-shaped sliding block sliding groove 7 and the bottom groove surface of the annular grinding groove 17; the first sieve plate sliding groove 12 is positioned between the second sieve plate sliding groove 10 and the inner circular surface of the annular grinding groove 17; a first sieve plate sliding groove 12 at each arc-shaped sliding block sliding groove 7 is communicated with a corresponding first sieve plate sliding through groove 16 on the annular lining disc 18, and the first sieve plate sliding groove 12 and the first sieve plate sliding through groove 16 are the same in size; a second sieve plate sliding groove 10 at each arc-shaped sliding block sliding groove 7 is communicated with a corresponding second sieve plate sliding through groove 15 on the annular lining disc 18, and the size of the second sieve plate sliding groove 10 is the same as that of the second sieve plate sliding through groove 15; the six screening mechanisms 20 are respectively arranged in the six arc-shaped sliding block sliding grooves 7 and a first arc-shaped guide groove 8, a second arc-shaped guide groove 9, a second sieve plate sliding groove 10 and a first sieve plate sliding groove 12 which are related to the arc-shaped sliding block sliding grooves 7; the screening means 20 cooperates with the insert 1 in the grinding roll assembly.
As shown in fig. 13, 14 and 17, the screening mechanism 20 includes a second arc-shaped screen plate 21, a first arc-shaped screen plate 22, an arc-shaped sliding block 23, a supporting column 24, a first arc-shaped guide block 25, a first spring 26, a second arc-shaped guide block 27, a second spring 28, a second square screen hole 30, a first square screen hole 35 and a column hole 41, as shown in fig. 3 and 4, wherein the arc-shaped sliding block 23 is installed in the arc-shaped sliding block sliding groove 7 of the grinding table body 6 in a sliding fit manner; as shown in fig. 15 and 16, two penetrating column holes 41 are formed on the arc-shaped slider 23; as shown in fig. 5 and 14, one end of each of the two support columns 24 is fixedly mounted on the top groove surface of the arc-shaped slider sliding groove 7, and the other end thereof passes through the two column holes 41 in the arc-shaped slider 23 and is fixedly mounted on the bottom groove surface of the arc-shaped slider sliding groove 7; as shown in fig. 15, a first arc-shaped guide block 25 is fixedly mounted on the inner arc surface of the arc-shaped slide block 23; as shown in fig. 9 and 10, the first arc-shaped guide blocks 25 are installed in the corresponding first arc-shaped guide grooves 8 in a sliding fit manner; as shown in fig. 10 and 15, one end of each of the two first springs 26 is mounted on the first arc-shaped guide block 25, and the other end is mounted on the bottom groove surface of the first arc-shaped guide groove 8; two first springs 26 are located in the first arcuate guide slots 8; as shown in fig. 16, a second arc-shaped guide block 27 is fixedly mounted on the outer arc surface of the arc-shaped sliding block 23; as shown in fig. 11 and 12, the second arc-shaped guide blocks 27 are installed in the corresponding second arc-shaped guide grooves 9 in a sliding fit manner; as shown in fig. 12 and 16, one end of each of the three second springs 28 is mounted on the second arc-shaped guide block 27, and the other end is mounted on the bottom groove surface of the second arc-shaped guide groove 9; three second springs 28 are located in the second arcuate guide slots 9; as shown in fig. 3, 8 and 14, the first arc-shaped screen plate 22 is fixedly installed on the upper surface of the arc-shaped sliding block 23, and one end of the first arc-shaped screen plate 22, which is far away from the arc-shaped sliding block 23, passes through the corresponding first screen plate sliding groove 12 on the grinding disc body 6 and the corresponding first screen plate sliding through groove 16 on the annular lining disc 18; as shown in fig. 3, 8 and 13, the second arc-shaped screen plate 21 is fixedly mounted on the upper surface of the arc-shaped sliding block 23, and one end of the second arc-shaped screen plate 21, which is far away from the arc-shaped sliding block 23, passes through the corresponding second screen plate sliding groove 10 on the grinding disc body 6 and the corresponding second screen plate sliding through groove 15 on the annular lining disc 18; as shown in fig. 17, a plurality of first square sieve holes 35 are uniformly arranged on the inner arc surface of the first arc-shaped sieve plate 22 along the circumferential direction; a plurality of through second square sieve holes 30 are uniformly formed in the inner arc surface of the second arc-shaped sieve plate 21 along the circumferential direction; as shown in fig. 17, the size of the first square mesh 35 is larger than that of the second square mesh 30.
As shown in fig. 1 and 2, the first arc-shaped screen plate 22 and the second arc-shaped screen plate 21 are matched with the lining 1 in the grinding roller assembly; the annular liner disk 18 described above cooperates with the liner 1 in the grinding roll assembly.
One end of the supporting turntable 5, which is far away from the grinding turntable body 6, is connected with a driving mechanism. Then, after the driving mechanism acts, the driving mechanism drives the grinding disc body 6 to rotate through the supporting turntable 5.
The end of the rotary column 3 far away from the conical grinding roller 2 is connected with a pressurizing mechanism. Then, when the pressurizing mechanism is actuated, the pressurizing mechanism drives the conical grinding roll 2 to move downwards through the rotary column 3, and the lining 1 can be in frictional contact with the annular lining disc 18.
As shown in fig. 13 and 17, the two side corners of the end of the first arc-shaped screen plate 22 away from the arc-shaped sliding block 23 are rounded corners 40. In such a design, in order to facilitate the rotation process of the first arc-shaped sieve plate 22 driven by the grinding disc body 6, the rounded corners 40 on two sides of one end of the first arc-shaped sieve plate 22 far away from the arc-shaped sliding block 23 can be better in pressing contact with the bushing 1, so that the abrasion in the pressing process is reduced.
As shown in fig. 14 and 17, the two side corners of the end of the second arc-shaped screen plate 21 away from the arc-shaped sliding block 23 are rounded corners 40. In such a design, in order to facilitate the rotation process of the second arc-shaped sieve plate 21 driven by the grinding disc body 6, the rounded corners 40 on two sides of one end of the second arc-shaped sieve plate 21 far away from the arc-shaped sliding block 23 can be better in pressing contact with the bushing 1, so that the abrasion in the pressing process is reduced.
As shown in fig. 3, the distance between two adjacent first arc-shaped screen plates 22 is smaller than the distance between two side wall surfaces of the first screen holes. Such a design ensures that the size of the cement material particles allowed to pass through the gaps between two adjacent first arc-shaped sieve plates 22 is smaller than that of the cement material particles allowed to pass through the first sieve holes, so that the sizes of the cement material particles passing through the gaps between two adjacent first arc-shaped sieve plates 22 and the first sieve holes can be maintained to meet the design requirements.
As shown in fig. 3 and 4, the first spring 26 and the second spring 28 are both compression springs; when the first spring 26 and the second spring 28 are not compressed, the first arc-shaped guide block 25 is located at the top end of the first arc-shaped guide groove 8, the second arc-shaped guide block 27 is located at the top end of the second arc-shaped guide groove 9, one end, far away from the arc-shaped sliding block 23, of the first arc-shaped sieve plate 22 extends out of the first sieve plate sliding through groove 16, the first square sieve hole 35 is located on the disc surface of the annular lining disc 18, one end, far away from the arc-shaped sliding block 23, of the second arc-shaped sieve plate 21 extends out of the second sieve plate sliding through groove 15, and the second square sieve hole 30 is located on.
The lining disc and the lining 1 have the effects that after the lining 1 is contacted with the lining disc, under the pressurization of a pressurization mechanism, relatively large pressure exists between the lining 1, and after cement material particles enter the lining 1 and the lining disc, the lining 1 and the lining disc are mutually extruded and matched to grind the cement material particles into powder reaching the standard. In addition, the lining disc and the lining 1 are relatively worn, and can be replaced after being used for a period of time.
For the bush 1 in the grinding roller combination, in the mutual extrusion grinding process of the bush 1 and the lining disc, the grinding disc body 6 drives the lining disc to rotate, so that in the extrusion grinding process, the lining disc can drive the bush 1 to rotate around the axis of the rotary column 3, and the bush 1 drives the conical grinding roller 2 and the rotary column 3 to rotate.
The matching process of the first arc-shaped sieve plate 22 and the second arc-shaped sieve plate 21 with the lining 1 in the grinding roller combination comprises the following steps: firstly, when the lining 1 in the grinding roller combination does not move downwards and is mutually extruded with the lining disc for grinding powder, the first arc-shaped sieve plate 22 and the second arc-shaped sieve plate 21 are not pressed downwards; at this time, the first spring 26 and the second spring 28 are not compressed, the first arc-shaped guide block 25 is located at the top end of the first arc-shaped guide groove 8, the second arc-shaped guide block 27 is located at the top end of the second arc-shaped guide groove 9, one end, far away from the arc-shaped sliding block 23, of the first arc-shaped sieve plate 22 extends out of the first sieve plate sliding through groove 16, the first square sieve hole 35 is located on the disc surface of the annular lining disc 18, one end, far away from the arc-shaped sliding block 23, of the second arc-shaped sieve plate 21 extends out of the second sieve plate sliding through groove 15, and the second square sieve hole. Secondly, in the process of mutually extruding and grinding the powder by the lining 1 and the lining disc in the grinding roller combination, as the grinding disc body 6 drives the first arc-shaped sieve plate 22 and the second arc-shaped sieve plate 21 to rotate, the lining 1 can extrude the fillet 40 of the first arc-shaped sieve plate 22 and the second arc-shaped sieve plate 21, the first arc-shaped sieve plate 22 and the second arc-shaped sieve plate 21 are extruded to move downwards, the first arc-shaped sieve plate 22 and the second arc-shaped sieve plate 21 enable the arc-shaped sliding block 23 to move downwards, the first arc-shaped guide block 25 and the second arc-shaped guide block 27 follow the arc-shaped sliding block 23 to move, and the first spring 26 and the second spring 28 are compressed. Thirdly, when the first arc-shaped sieve plate 22 is pressed downwards, the end surface of one end of the first arc-shaped sieve plate 22 far away from the arc-shaped sliding block 23 and the disc surface on the annular lining disc 18 reach a coplanar state; after the second arc-shaped sieve plate 21 is pressed downwards, when the end surface of one end of the second arc-shaped sieve plate 21, which is far away from the arc-shaped sliding block 23, and the upper disk surface of the annular lining disk 18 are in a coplanar state, the arc-shaped sliding block 23 moves downwards to a position where the end surface is in contact with the bottom groove surface of the arc-shaped sliding block sliding groove 7, and at the moment, the arc-shaped sliding block 23 cannot move downwards continuously. Fourthly, after the first and second arc-shaped screen plates 22 and 21 are no longer pressed by the bushing 1, the first and second arc-shaped guide blocks 25 and 27 move the arc-shaped sliding blocks 23 to return to the original position and the first and second arc-shaped screen plates 22 and 21 move upward to the original position under the return action of the first and second springs 26 and 28.
The size of the first square mesh 35 is larger than that of the second square mesh 30: the cement material particles fall to the middle position of the grinding disc body 6, then the rotary grinding disc body 6 drives the cement material particles to rotate, and the cement material particles move to the periphery of the grinding disc body 6 under the action of centrifugal force. At the in-process of cement material granule to the peripheral motion of mill disk body 6, big cement material granule fails to pass through first party sieve mesh 35, and medium cement material granule and little cement material granule pass through first party sieve mesh 35, but medium cement material granule fails to pass through second square sieve mesh 30, and little cement material granule can pass through second square sieve mesh 30. In summary, under the screening of the first arc-shaped screen deck 22 and the second arc-shaped screen deck 21, large cement material particles are retained between the first arc-shaped screen deck 22 and the inner circumferential surface of the ring mill groove 17, medium cement material particles are retained between the first arc-shaped screen deck 22 and the second arc-shaped screen deck 21, and small cement material particles are retained between the second arc-shaped screen deck 21 and the outer circumferential surface of the ring mill groove 17.
One end of each of the two support columns 24 is fixedly arranged on the top groove surface of the arc-shaped sliding block sliding groove 7, and the other end of each of the two support columns passes through the two column holes 41 in the arc-shaped sliding block 23 and is fixedly arranged on the bottom groove surface of the arc-shaped sliding block sliding groove 7; the design is that the arc-shaped sliding block 23 can slide on the supporting column 24; in addition, the supporting column 24 can well support the grinding disc body 6 on the upper part of the arc-shaped sliding block sliding groove 7, and the grinding disc body 6 on the upper part of the arc-shaped sliding block sliding groove 7 is prevented from deforming under heavy pressure.
The specific implementation mode is as follows: when the vertical grinding disc of the invention does not work, the grinding roller combination is positioned at the upper side of the grinding disc body 6, and the lining 1 in the grinding roller combination is not contacted with the first arc-shaped sieve plate 22 and the second arc-shaped sieve plate 21; first spring 26 and second spring 28 are both uncompressed, first arc guide block 25 is located the top of first arc guide slot 8, second arc guide block 27 is located the top of second arc guide slot 9, the one end that arc slider 23 was kept away from to first arc sieve plate 22 stretches out first sieve board sliding through groove 16 and first square sieve hole 35 is located on the dish face is slipped to annular set 18, the one end that arc slider 23 was kept away from to second arc sieve plate 21 stretches out second sieve board sliding through groove 15 and second square sieve hole 30 is located on the dish face is slipped to annular set 18.
In the working process of the conical grinding roller 2, the diameter of the outer conical surface of the conical grinding roller 2 close to the middle of the grinding disc body 6 is smaller than that of the outer conical surface of the conical grinding roller 2 close to the outer circular surface of the grinding disc body 6, the conical end of the conical grinding roller 2 close to the middle of the grinding disc body 6 is a front conical end, and the conical end of the conical grinding roller 2 close to the outer circular surface of the grinding disc body 6 is a rear conical end. That is, the diameter of the outer conical surface of the front conical end of the conical grinding roll 2 is smaller than the diameter of the outer conical surface of the rear conical end of the conical grinding roll 2.
When the vertical grinding disc of the invention grinds cement materials, the driving mechanism acts and drives the grinding disc body 6 and the annular lining disc 18 to rotate through the supporting turntable 5; subsequently, the material conveying mechanism on the upper side of the grinding disc body 6 drops the cement materials at the middle position of the grinding disc body 6, then the rotating grinding disc body 6 drives the cement material particles to rotate, and the cement material particles move to the periphery of the grinding disc body 6 under the action of centrifugal force. Under the screening effect of first arc sieve plate 22 and second arc sieve plate 21, big cement material granule is detained between first arc sieve plate 22 and the interior disc of ring mill groove 17, and medium cement material granule is detained between first arc sieve plate 22 and second arc sieve plate 21, and little cement material granule is detained between second arc sieve plate 21 and the outer disc of ring mill groove 17.
Then, the pressurizing mechanism acts and drives the conical grinding roller 2 to move downwards through the rotary column 3, the bushing 1 moves downwards along with the conical grinding roller 2, the bushing 1 can be in frictional contact with the annular lining disc 18, and the bushing 1 presses the corresponding first arc-shaped sieve plate 22 and the second arc-shaped sieve plate 21 to the position where the annular lining disc 18 is coplanar. Since the grinding table body 6 rotates the first arc-shaped screen plate 22 and the second arc-shaped screen plate 21, the bushing 1 presses the round corner 40 of the first arc-shaped screen plate 22 and the second arc-shaped screen plate 21, the first arc-shaped screen plate 22 and the second arc-shaped screen plate 21 are pressed to move downwards, the first arc-shaped screen plate 22 and the second arc-shaped screen plate 21 cause the arc-shaped sliding block 23 to move downwards, the first arc-shaped guide block 25 and the second arc-shaped guide block 27 follow the movement of the arc-shaped sliding block 23, and the first spring 26 and the second spring 28 are compressed. When the first arc-shaped sieve plate 22 is pressed downwards, the end surface of one end of the first arc-shaped sieve plate 22, which is far away from the arc-shaped sliding block 23, and the disc surface on the annular lining disc 18 reach a coplanar state; after the second arc-shaped sieve plate 21 is pressed downwards, when the end surface of one end of the second arc-shaped sieve plate 21, which is far away from the arc-shaped sliding block 23, and the upper disk surface of the annular lining disk 18 are in a coplanar state, the arc-shaped sliding block 23 moves downwards to a position where the end surface is in contact with the bottom groove surface of the arc-shaped sliding block sliding groove 7, and at the moment, the arc-shaped sliding block 23 cannot move downwards continuously. Just so can guarantee that bush 1 is at the in-process with annular bushing disc 18 mutual extrusion crocus, the upper surface of annular bushing disc 18 forms a flat quotation that does not have the cell surface, and the cement material on the annular bushing disc 18 can not be extruded in the second sieve slip logical groove 15 and the first sieve slip logical groove 16 of annular bushing disc 18, and the bush 1 of being convenient for can better cooperate the crocus with annular bushing disc 18. After the bushing 1 presses the first arc-shaped screen plate 22 and the second arc-shaped screen plate 21 of the next group, the first arc-shaped screen plate 22 and the second arc-shaped screen plate 21 which are pressed before are not pressed by the bushing 1 any more, under the reset action of the first spring 26 and the second spring 28, the first arc-shaped guide block 25 and the second arc-shaped guide block 27 enable the arc-shaped slide block 23 to move and reset to the original position, the first arc-shaped screen plate 22 and the second arc-shaped screen plate 21 move upwards to the original position, and the screening of the first arc-shaped screen plate 22 and the second arc-shaped screen plate 21 continues to screen cement materials.
After the first arc-shaped sieve plate 22 and the second arc-shaped sieve plate 21 are extruded downwards by the bushing 1, the bushing 1 and the lining disc mutually extrude and grind cement particles screened at the first arc-shaped sieve plate 22 and the second arc-shaped sieve plate 21. Because the conical grinding roller 2 and the lining 1 are in a conical state, and the diameter of the outer conical surface of the front conical end of the conical grinding roller 2 is smaller than that of the outer conical surface of the rear conical end of the conical grinding roller 2, the diameter of the outer conical surface of the lining 1 positioned at the front conical end of the conical grinding roller 2 is smaller than that of the outer conical surface of the rear conical lining 1 positioned at the conical grinding roller 2. As shown in fig. 18, in the process of milling by the mutual cooperation of the lining 1 and the annular lining disk 18, the front end portion of the lining 1 presses the large cement material particles retained between the first arc-shaped screen plate 22 and the inner circumferential surface of the annular milling groove 17, the middle end portion of the lining 1 presses the medium cement material particles retained between the first arc-shaped screen plate 22 and the second arc-shaped screen plate 21, and the rear end portion of the lining 1 presses the small cement material particles retained between the second arc-shaped screen plate 21 and the outer circumferential surface of the annular milling groove 17. By the design, cement materials with different grain sizes can be better extruded and milled by the lining 1, and small cement material grains, medium cement material grains and large cement material grains can be simultaneously extruded by the lining 1, so that the efficiency of crushing the cement materials with different grain sizes is improved; in the process of crushing cement materials by the conical grinding roller 2, the vibration generated by particle crushing is determined by the particle crushing condition, and because the conical grinding roller 2 applies pressure to large, medium and small cement material particles at the same time, the vibration generated after the large cement material particles are crushed is inhibited by the small cement material particle crushing condition, so that the vibration of the conical grinding roller 2 is determined by the small cement particle crushing condition, and further the sound energy and heat energy loss generated by the vibration of the conical grinding roller 2 are determined by the small cement particle crushing condition. Compare in cylindrical grinding roller crocus cement material granule, cylindrical grinding roller crocus needs to extrude breakage into medium cement material granule with big cement material granule earlier, then cylindrical grinding roller again with medium cement material granule extrusion breakage into little cement material granule, so cylindrical grinding roller vibrations are basically decided by the broken condition of big cement material granule to the acoustic energy and the heat energy loss that cylindrical grinding roller vibrations produced are basically decided by the broken condition of big cement material granule. Since the losses of acoustic and thermal energy generated by the vibrations of the conical grating roll 2 are determined by the crushing of small cement particles, the losses of acoustic and thermal energy generated by the vibrations of the cylindrical grating roll are substantially determined by the crushing of large cement material particles, while the crushing of small cement particles causes the vibrations of the grating roll to have a much smaller amplitude than the crushing of large cement material particles, the losses of the conical grating roll 2 with the first arched screen deck 22 and the second arched screen deck 21 designed to cooperate are smaller than the losses of the cylindrical grating roll.
After the conical grinding roller 2 stops working, the driving mechanism and the pressurizing mechanism stop working, the grinding disc body 6 stops rotating, the conical grinding roller 2 and the lining 1 return to the original position under the driving of the pressurizing mechanism, the conical grinding roller 2 and the lining 1 do not extrude the annular lining disc 18 any more, and the first arc-shaped screen plate 22 and the second arc-shaped screen plate 21 are not extruded by the lining 1 any more. When the first arc-shaped screen plate 22 and the second arc-shaped screen plate 21 are not pressed by the bushing 1 any more, the first arc-shaped guide block 25 and the second arc-shaped guide block 27 cause the arc slide block 23 to move and return to the original position under the return action of the first spring 26 and the second spring 28, and the first arc-shaped screen plate 22 and the second arc-shaped screen plate 21 move upward to the original position.
In conclusion, the invention has the main beneficial effects that: according to the invention, by utilizing the screening effect of the first arc-shaped screen plate 22 and the second arc-shaped screen plate 21, large cement material particles are retained between the first arc-shaped screen plate 22 and the inner circular surface of the annular grinding groove 17, medium cement material particles are retained between the first arc-shaped screen plate 22 and the second arc-shaped screen plate 21, and small cement material particles are retained between the second arc-shaped screen plate 21 and the outer circular surface of the annular grinding groove 17; the design of cement granule screening can make bush 1 extrude the cement material of the different particle sizes of crocus better, and bush 1 can extrude little cement material granule, medium cement material granule and big cement material granule simultaneously to the efficiency of the cement material of broken different size granule has been improved. In addition, the acoustic and thermal energy losses due to the vibrations of the conical grinding roll 2 are determined by the breaking of small cement particles, which in turn causes the grinding roll to vibrate to a much smaller extent than the breaking of large cement material particles, compared to the acoustic and thermal energy losses due to the vibrations of a cylindrical grinding roll, so that the losses of a conical grinding roll 2 with a first arched screen deck 22 and a second arched screen deck 21 designed to cooperate are smaller than the losses of a cylindrical grinding roll. The conical grinding roller 2 with the first arc-shaped sieve plate 22 and the second arc-shaped sieve plate 21 in matching design can reduce the part of electric energy converted into sound energy and heat energy in the grinding process, thereby achieving the effect of energy conservation. The invention has simple structure and better use effect.

Claims (7)

1. The utility model provides an energy-conserving vertical mill dish that building engineering used which characterized in that: the grinding disc mechanism comprises a lining, a conical grinding roller, a rotating column, a grinding disc mechanism and a supporting rotary disc, wherein the grinding disc mechanism is arranged on the upper disc surface of the supporting rotary disc; one end of the rotary column is provided with a conical grinding roller; a lining is fixedly arranged on the outer conical surface of the conical grinding roller; the grinding roller combination is composed of a lining, a conical grinding roller and a rotating column; three groups of grinding roller combinations are uniformly distributed on the upper side of the grinding disc mechanism along the circumferential direction; a lining in the grinding roller combination is matched with the grinding disc mechanism;
the grinding disc mechanism comprises a grinding disc body, an arc-shaped sliding block sliding groove, an annular lining disc, a second arc-shaped guide groove, a first sieve plate sliding groove, a second sieve plate sliding groove, a first sieve plate sliding through groove, a second sieve plate sliding through groove, an annular grinding groove and a screening mechanism, wherein the grinding disc body is fixedly arranged on the upper disc surface of the supporting rotary disc; the surface of the grinding disc body, which is far away from the supporting turntable, is provided with an annular grinding groove; the annular lining disc is fixedly arranged on the bottom groove surface of the annular grinding groove, the inner circular surface of the annular lining disc is connected with the inner circular surface of the annular grinding groove, and the outer circular surface of the annular lining disc is connected with the outer circular surface of the annular grinding groove; six second sieve plate sliding through grooves are uniformly formed in the disc surface of the annular lining disc along the circumferential direction; six first sieve plate sliding through grooves are uniformly formed in the disc surface of the annular lining disc along the circumferential direction; the first sieve plate sliding through groove is positioned between the inner circular surface of the annular lining disc and the second sieve plate sliding through groove; six arc-shaped sliding block sliding grooves are uniformly formed in the grinding disc body along the circumferential direction; a first arc-shaped guide groove is formed in the inner arc-shaped groove surface of each arc-shaped sliding block sliding groove; a second arc-shaped guide groove is formed in the outer arc-shaped groove surface of each arc-shaped sliding block sliding groove; a first sieve plate sliding groove and a second sieve plate sliding groove which are communicated are formed between the top groove surface of each arc-shaped sliding block sliding groove and the bottom groove surface of the annular grinding groove; the first sieve plate sliding groove is positioned between the second sieve plate sliding groove and the inner circular surface of the annular grinding groove; a first sieve plate sliding groove at each arc-shaped sliding block sliding groove is communicated with a corresponding first sieve plate sliding through groove on the annular lining disc, and the first sieve plate sliding groove is the same as the first sieve plate sliding through groove in size; a second sieve plate sliding groove at each arc-shaped sliding block sliding groove is communicated with a corresponding second sieve plate sliding through groove on the annular lining disc, and the second sieve plate sliding groove is the same as the second sieve plate sliding through groove in size; the six screening mechanisms are respectively arranged in the six arc-shaped sliding block sliding grooves and a first arc-shaped guide groove, a second sieve plate sliding groove and a first sieve plate sliding groove which are related to the arc-shaped sliding block sliding grooves; the screening mechanism is matched with a bushing in the grinding roller combination;
the screening mechanism comprises a second arc-shaped sieve plate, a first arc-shaped sieve plate, arc-shaped sliding blocks, supporting columns, a first arc-shaped guide block, a first spring, a second arc-shaped guide block, a second spring, a second square sieve hole, a first square sieve hole and a column hole, wherein the arc-shaped sliding blocks are arranged in arc-shaped sliding block sliding grooves of the grinding disc body in a sliding fit mode; two through column holes are formed in the arc-shaped sliding block; one end of each of the two support columns is fixedly arranged on the top groove surface of the arc-shaped sliding block sliding groove, and the other end of each of the two support columns respectively penetrates through two column holes in the arc-shaped sliding block and is fixedly arranged on the bottom groove surface of the arc-shaped sliding block sliding groove; a first arc-shaped guide block is fixedly arranged on the inner arc surface of the arc-shaped slide block; the first arc-shaped guide blocks are arranged in the corresponding first arc-shaped guide grooves in a sliding fit manner; one ends of the two first springs are arranged on the first arc-shaped guide block, and the other ends of the two first springs are arranged on the bottom groove surface of the first arc-shaped guide groove; the two first springs are positioned in the first arc-shaped guide groove; a second arc-shaped guide block is fixedly arranged on the outer arc surface of the arc-shaped slide block; the second arc-shaped guide blocks are arranged in the corresponding second arc-shaped guide grooves in a sliding fit manner; one end of each second spring is arranged on the second arc-shaped guide block, and the other end of each second spring is arranged on the bottom groove surface of the second arc-shaped guide groove; the three second springs are positioned in the second arc-shaped guide groove; the first arc-shaped sieve plate is fixedly arranged on the upper surface of the arc-shaped sliding block, and one end of the first arc-shaped sieve plate, which is far away from the arc-shaped sliding block, penetrates through a corresponding first sieve plate sliding groove on the grinding disc body and a corresponding first sieve plate sliding through groove on the annular lining disc; the second arc-shaped sieve plate is fixedly arranged on the upper surface of the arc-shaped sliding block, and one end of the second arc-shaped sieve plate, which is far away from the arc-shaped sliding block, penetrates through a corresponding second sieve plate sliding groove on the grinding disc body and a corresponding second sieve plate sliding through groove on the annular lining disc; a plurality of first square sieve pores which are communicated are uniformly arranged on the inner arc surface of the first arc-shaped sieve plate along the circumferential direction; a plurality of second square sieve holes which are communicated are uniformly formed in the inner arc surface of the second arc-shaped sieve plate along the circumferential direction; the size of the first square sieve pore is larger than that of the second square sieve pore;
the first arc-shaped sieve plate and the second arc-shaped sieve plate are matched with a bushing in the grinding roller combination; the annular lining disc is matched with a lining in the grinding roller assembly.
2. The energy-saving vertical grinding disc for the building engineering of claim 1, which is characterized in that: the end of the supporting turntable far away from the grinding disc body is connected with the driving mechanism.
3. The energy-saving vertical grinding disc for the building engineering of claim 1, which is characterized in that: the end of the rotary column far away from the conical grinding roller is connected with a pressurizing mechanism.
4. The energy-saving vertical grinding disc for the building engineering of claim 1, which is characterized in that: the two side end corners of one end of the first arc-shaped sieve plate, which is far away from the arc-shaped sliding block, are rounded corners.
5. The energy-saving vertical grinding disc for the building engineering of claim 1, which is characterized in that: the two side end corners of one end of the second arc-shaped sieve plate, which is far away from the arc-shaped sliding block, are rounded corners.
6. The energy-saving vertical grinding disc for the building engineering of claim 1, which is characterized in that: the distance between two adjacent first arc-shaped sieve plates is smaller than the distance between two side wall surfaces of the first sieve holes.
7. The energy-saving vertical grinding disc for the building engineering of claim 1, which is characterized in that: the first spring and the second spring are both compression springs; when first spring and second spring all uncompressed, first arc guide block is located the top of first arc guide slot, and second arc guide block is located the top of second arc guide slot, and the one end that arc slider was kept away from to first arc sieve stretches out first sieve slip logical groove and first square sieve mesh is located on the dish face of hanging of annular bushing, and the one end that arc slider was kept away from to second arc sieve stretches out second sieve slip logical groove and second square sieve mesh is located on the dish face of hanging of annular bushing.
CN201810896567.XA 2018-08-08 2018-08-08 Energy-conserving vertical mill that building engineering used Active CN108906232B (en)

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