CN114749257A - Coal gangue powder production station and coal gangue powder production method - Google Patents
Coal gangue powder production station and coal gangue powder production method Download PDFInfo
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- CN114749257A CN114749257A CN202210332646.4A CN202210332646A CN114749257A CN 114749257 A CN114749257 A CN 114749257A CN 202210332646 A CN202210332646 A CN 202210332646A CN 114749257 A CN114749257 A CN 114749257A
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- 239000003245 coal Substances 0.000 title claims abstract description 122
- 239000000843 powder Substances 0.000 title claims abstract description 64
- 238000004519 manufacturing process Methods 0.000 title description 6
- 230000007246 mechanism Effects 0.000 claims abstract description 113
- 239000000463 material Substances 0.000 claims abstract description 55
- 238000010298 pulverizing process Methods 0.000 claims abstract description 51
- 238000012216 screening Methods 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 31
- 238000007789 sealing Methods 0.000 claims description 22
- 238000001816 cooling Methods 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 11
- 239000010879 coal refuse Substances 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 5
- 210000004907 gland Anatomy 0.000 claims description 4
- 239000010419 fine particle Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 239000002245 particle Substances 0.000 abstract description 11
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000002360 preparation method Methods 0.000 abstract description 4
- 230000009467 reduction Effects 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 18
- 238000004146 energy storage Methods 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
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- 238000007873 sieving Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the 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
- 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
-
- 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
- B02C23/02—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
- 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
Abstract
The invention relates to a coal gangue pulverizing station, which comprises a low-pressure crushing mechanism; a medium pressure pulverizing mechanism; a high-pressure pulverizing mechanism; the feed inlet of the material hoister is connected with the discharge outlet of the high-pressure pulverizing mechanism; the coarse powder port of the material screening machine is connected with the feed inlet of the high-pressure powder making mechanism. A coal gangue pulverizing method adopts the coal gangue pulverizing station and comprises the following steps: step S01, crushing the coal gangue with large particle size into coal gangue with medium particle size by a low-pressure crushing mechanism; step S02, crushing the medium-particle-size coal gangue into small-particle-size coal gangue by a medium-pressure crushing mechanism; step S03, crushing the small-particle-size coal gangue into coal gangue powder by a high-pressure pulverizing mechanism; step S04, lifting the material; and step S05, screening the materials. The coal gangue powder preparation device has the advantages of high efficiency, stable and reliable mechanism, convenience in maintenance and replacement, great reduction in use cost and better automation realization.
Description
Technical Field
The invention relates to a coal gangue powder-making station and a coal gangue powder-making method.
Background
The existing coal gangue powder crushing equipment has no special equipment, and mainly utilizes equipment for crushing ores into powder, cement equipment and the like. Mainly comprises the following steps: jaw crushers, vertical shaft crushers, impact crushers, ball mills, and the like. And a belt conveyor is used for transferring materials between the devices.
Coal gangue powder preparation mainly has the problems that: 1. the energy consumption of the traditional equipment is high; 2. the powder preparation efficiency is low; 3. the quick-wear parts of the equipment are frequently replaced and need to be frequently stopped for maintenance; 4. the flour milling production line occupies a large area and the like.
In a word, the pulverizing device for pulverizing the ore has high pulverizing cost, low efficiency and frequent replacement of accessories, and cannot realize automatic production.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the defects of the prior art are overcome, the coal gangue powder making station and the coal gangue powder making method are provided, and the problems of high cost, low efficiency and frequent replacement of accessories of the existing coal gangue powder making station are solved.
The technical scheme adopted by the invention for solving the technical problems is as follows:
in a first aspect:
provides a coal gangue pulverizing station, which comprises
The low-pressure crushing mechanism is arranged at the upper end of the medium-pressure crusher, a discharge hole at the lower end of the low-pressure crushing mechanism is connected with a feed hole of the medium-pressure crushing mechanism, and the low-pressure crushing mechanism is suitable for crushing the large-particle-size coal gangue into medium-particle-size coal gangue and then conveying the medium-particle-size coal gangue to the medium-pressure crushing mechanism;
the medium-pressure crushing mechanism is arranged between the low-pressure crushing mechanism and the high-pressure powder making mechanism and is suitable for crushing the coal gangue with medium particle size into the coal gangue with small particle size and outputting the coal gangue with small particle size to the high-pressure powder making mechanism;
The high-pressure pulverizing mechanism is arranged below the medium-pressure pulverizing mechanism and is suitable for pulverizing the small-particle-size coal gangue into coal gangue powder and outputting the coal gangue powder to the material elevator;
the material elevator is connected with the discharge port of the high-pressure powder making mechanism at the feed port and is suitable for conveying the coal gangue powder to the material screening machine;
the coarse powder port of the material screening machine is connected with the feed port of the high-pressure pulverizing mechanism; the material screening machine is suitable for screening out coarse coal gangue materials and fine coal gangue materials from the coal gangue powder materials, and conveying the coarse coal gangue materials to the high-pressure powder making mechanism for smashing again.
Furthermore, low pressure crushing mechanism, middling pressure crushing mechanism and high pressure powder process mechanism all include
A frame;
the two ends of the fixed roller are connected with the rack through bearing seats and are fixedly arranged on the rack;
the two ends of the movable roller are connected with the rack through bearing seats and are movably arranged on the rack;
and the pressure system is connected with the two bearing seats of the movable roller and is suitable for driving the movable roller to extrude and move towards the first fixed roller.
Further, in the low-pressure crushing mechanism, the fixed roller and the movable roller both comprise
The two ends of the first gear roller main shaft are respectively in rotating supporting fit with the bearing seats;
The base sleeve is fixedly arranged outside the first tooth roller main shaft, two ends of the base sleeve are respectively provided with a locking plate, the locking plates are in step fit with the first tooth roller main shaft and in conical surface fit with the base sleeve, the locking plates are in key connection with the first tooth roller main shaft, and the two locking plates are axially locked through bolts;
the baffle plates are fixedly connected with the shaft sleeve and the base sleeve by bolts so that the shaft sleeve synchronously rotates along with the base sleeve; the shaft sleeve is provided with a plurality of T-shaped column holes, a plurality of T-shaped toothed columns respectively penetrate out of the column holes from the inner sides of the T-shaped column holes in the shaft sleeve, and the tail ends of the T-shaped toothed columns are abutted against the inner ends of the column holes so as to limit the toothed columns to move out.
Further, in the medium pressure pulverizing mechanism, the fixed roller and the movable roller comprise
Two ends of the second smooth roll main shaft are respectively in rotary supporting fit with the bearing seats;
the smooth roll sleeve is sleeved outside the second smooth roll main shaft;
the pair of conical plates are respectively positioned on two sides of the smooth roll sleeve, the conical plates and the second smooth roll main shaft form step fit in the axial direction, the conical plates and the second smooth roll main shaft form key connection in the circumferential direction, and the conical plates and the smooth roll sleeve form conical surface fit; the two conical plates are axially locked through bolts.
Furthermore, in the high-pressure pulverizing mechanism, the fixed roller and the movable roller comprise
The outer part of the third stud main shaft is sleeved with a stud roller sleeve, the stud roller sleeve and the third stud main shaft form interference fit, two sides of the stud roller sleeve are respectively connected with an edge retainer ring through bolts, and the edge retainer ring and the third stud main shaft form step fit in the axial direction so as to limit the axial movement of the stud roller sleeve;
a water-cooling cavity is formed in the third stud main shaft, a cavity opening of the water-cooling cavity is provided with a two-way rotary joint, a water inlet hole and a water outlet hole are formed in the two-way rotary joint, and the water inlet hole and the water outlet hole are both communicated with the water-cooling cavity;
the water inlet pipe is arranged in the water cooling cavity, one end of the water inlet pipe is connected with the water inlet hole, and the other end of the water inlet pipe extends to the bottom of the water cooling cavity.
Further, the pressure system comprises
The hydraulic station assembly is connected with the accumulator assembly and is suitable for providing high-pressure power oil for the accumulator assembly;
one end of the energy accumulator component is connected with the hydraulic station assembly through a pipeline, and the other end of the energy accumulator component is connected with a pair of feeding oil cylinders;
and push rods of the feeding oil cylinders are respectively connected with two bearing seats in the moving roller, and oil cavities of the feeding oil cylinders are in pipeline connection with the energy accumulator assembly.
Further, the bearing seat comprises
The bearing seat comprises a seat body, wherein a bearing cavity is formed in the seat body;
the bearing is arranged in the bearing cavity, the outer ring of the bearing is matched with the seat body, and the inner ring of the bearing is matched with the main shaft;
the labyrinth seals are respectively arranged on two sides of the bearing and comprise sealing inner rings and sealing outer rings, and the sealing inner rings are fixedly connected with the base body; the sealing outer ring is in key connection with the main shaft, so that the main shaft drives the sealing outer ring to rotate, and the countersunk head screws penetrate through the sealing outer ring and then are connected with the main shaft to limit the sealing outer ring to move axially along the main shaft;
and the gland is arranged at the end part of the spindle and is suitable for abutting the sealing outer ring at the outer side of the end part.
Further, the frame comprises
A pair of supporting frames, an upper span beam assembly and a lower span beam assembly which are arranged in the front-back direction;
the supporting frame comprises
The two longitudinal seats and the two transverse seats are positioned between the two transverse seats, and the two longitudinal seats and the two transverse seats are connected to form a rectangular frame structure;
the connecting structure between the longitudinal seat and the transverse seat is as follows:
the first positioning half grooves are arranged in the front-back direction, each pair of first positioning half grooves are respectively arranged on the longitudinal seat and the transverse seat, and the first positioning half grooves of the longitudinal seat and the first positioning half grooves of the transverse seat form a first positioning groove hole;
The second positioning half grooves are arranged in the left-right direction, each pair of second positioning half grooves are respectively arranged on the longitudinal seat and the transverse seat, and the second positioning half grooves of the longitudinal seat and the second positioning half grooves of the transverse seat form a second positioning groove hole;
at least one first positioning pin arranged in the first positioning slot;
at least one second positioning pin arranged in the second positioning slot hole;
and the first locking bolt vertically penetrates through the longitudinal seat and the transverse seat and then is connected with the locking nut so as to tightly connect the longitudinal seat and the transverse seat.
Furthermore, a longitudinal connecting plate is arranged at the connecting end of the longitudinal seat, and the thickness of the longitudinal connecting plate is more than or equal to 120 mm;
the two ends of the transverse seat are respectively provided with a transverse connecting plate, and the thickness of each transverse connecting plate is more than or equal to 120 mm;
the longitudinal connecting plate and the transverse connecting plate are respectively provided with a first positioning half groove and a second positioning half groove;
the locking bolt vertically penetrates through the longitudinal connecting plate and the transverse connecting plate and then is connected with the locking nut so as to fixedly connect the longitudinal connecting plate and the transverse connecting plate;
the upper span beam assembly and the lower span beam assembly both comprise
The two connecting seats are respectively and fixedly connected with the supporting frames on the two sides;
the span beam is arranged between the two connecting seats;
The two rubber pads are arranged between the span beam and the connecting seat;
the second locking bolt sequentially penetrates through the connecting seat, the rubber pad and the span beam from front to back and is connected with the locking nut, so that two ends of the span beam are fixedly connected with the connecting seats on the front side and the back side respectively.
In a second aspect:
the coal gangue powder making method adopting the coal gangue powder making station comprises the following steps:
step S01, pouring the large-particle-size coal gangue into a low-pressure crushing mechanism, crushing the large-particle-size coal gangue into medium-particle-size coal gangue by the low-pressure crushing mechanism, and conveying the medium-particle-size coal gangue to a medium-pressure crushing mechanism;
step S02, crushing the medium-particle-size coal gangue into small-particle-size coal gangue by a medium-pressure crushing mechanism, and outputting the small-particle-size coal gangue to a high-pressure pulverizing mechanism;
step S03, crushing the small-particle-size coal gangue into coal gangue powder by a high-pressure powder-making mechanism, and outputting the coal gangue powder to a material hoist;
step S04, the material elevator conveys the coal gangue powder to a material screening machine for screening;
and step S05, discharging qualified coal gangue fine materials from the fine particle outlet by the material screening machine, and conveying unqualified coal gangue coarse materials to the high-pressure powder-making mechanism for secondary crushing.
The beneficial effects of the invention are:
the coal gangue powder making station provided by the invention can be used for pointedly crushing coal gangue step by step to powder, and finally obtaining qualified coal gangue fine powder through screening, and has the advantages of high coal gangue powder making efficiency, stable and reliable mechanism, convenience in maintenance and replacement, great reduction in use cost and better realization of automation.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of a coal refuse pulverizing plant;
FIG. 2 is a schematic view of a low pressure crushing mechanism;
FIG. 3 is a schematic view of a medium pressure pulverizing mechanism;
FIG. 4 is a schematic view of a high pressure pulverizing mechanism;
FIG. 5 is a schematic view of a pressure system;
FIG. 6 is a schematic view of a bearing block;
FIG. 7 is a front view of the housing;
FIG. 8 is a side view of the gantry;
FIG. 9 is a top view of the gantry;
FIG. 10 is a schematic view of a bridge assembly;
wherein the content of the first and second substances,
2. the crushing device comprises a low-pressure crushing mechanism 21, a first toothed roller main shaft 22, a base sleeve 23, a shaft sleeve 24, a locking plate 25 and a T-shaped toothed column;
3. the middle-pressure crushing mechanism 31, a second smooth roller main shaft 32, a smooth roller sleeve 33 and a conical plate;
4. the high-pressure pulverizing mechanism comprises 41 parts of a third stud main shaft, 411 parts of a water-cooling cavity, 42 parts of a stud roller sleeve, 43 parts of an edge retaining ring, 44 parts of a two-way rotary joint, 45 parts of a water inlet pipe;
5. a pressure system 51, a hydraulic station assembly 52, an energy accumulator assembly 53 and a feeding oil cylinder;
6. the bearing seat 61, the seat body 62, the bearing 63, the sealing inner ring 64, the sealing outer ring 65 and the gland;
7. a frame 71 supporting the rim;
711. a vertical seat 7111, a vertical connecting plate 712, a horizontal seat 7121 and a horizontal connecting plate;
72A, an upper span beam assembly, and 72B a lower span beam assembly;
721. a connecting seat, 722, a span beam, 723 and a rubber pad;
731. a first locking bolt, 732, a second locking bolt;
741. a first positioning pin 742 and a second positioning pin;
81. material lifting machine, 82, material sieve separator.
Detailed Description
The invention will now be further described with reference to the accompanying drawings. These drawings are simplified schematic diagrams only illustrating the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
As shown in FIGS. 1 to 10, a coal gangue pulverizing station comprises
The low-pressure crushing mechanism 2 is arranged at the upper end of the medium-pressure crusher, a discharge hole at the lower end of the low-pressure crushing mechanism is connected with a feed hole of the medium-pressure crushing mechanism 3, and the low-pressure crushing mechanism 2 is suitable for crushing the large-particle-size coal gangue into medium-particle-size coal gangue and then conveying the medium-particle-size coal gangue to the medium-pressure crushing mechanism 3;
the medium-pressure crushing mechanism 3 is arranged between the low-pressure crushing mechanism 2 and the high-pressure powder making mechanism 4, and the medium-pressure crushing mechanism 3 is suitable for crushing the coal gangue with medium particle size into the coal gangue with small particle size and outputting the coal gangue with small particle size to the high-pressure powder making mechanism 4;
the high-pressure pulverizing mechanism 4 is arranged below the medium-pressure crushing mechanism 3, and the high-pressure pulverizing mechanism 4 is suitable for crushing small-particle-size coal gangue until coal gangue powder is output to the material elevator 81;
A material elevator 81, the feed inlet of which is connected with the discharge outlet of the high-pressure powder-making mechanism 4 and is suitable for conveying the coal gangue powder to a material screening machine 82;
the material screening machine 82, wherein a coarse powder port of the material screening machine 82 is connected with a feed inlet of the high-pressure pulverizing mechanism 4; the material screening machine 82 is suitable for screening coarse coal gangue materials and fine coal gangue materials from the coarse coal gangue materials, and conveying the coarse coal gangue materials to the high-pressure powder making mechanism 4 for secondary crushing.
In this embodiment, the material lifting machine 81 and the material screening machine 82 both belong to the prior art, and can be purchased and obtained through the market, and the structures thereof are not described herein again.
Specifically, as an optional implementation manner in this embodiment, as shown in fig. 1, the low-pressure crushing mechanism 2, the medium-pressure crushing mechanism 3 and the high-pressure pulverizing mechanism 4 all include
A frame 7;
the two ends of the fixed roller are connected with the frame 7 through the bearing seats 6 and are fixedly arranged on the frame 7;
the two ends of the movable roller are connected with the frame 7 through bearing seats 6 and are movably arranged on the frame 7;
and the pressure system 5 is connected with the two bearing seats 6 of the movable roller and is suitable for driving the movable roller to extrude and move towards the first fixed roller.
The fixed roller and the movable roller are driven by respective independent driving motors, and the driving principle is a conventional means and is not described herein any more.
Specifically, as an alternative embodiment in this embodiment, as shown in fig. 2, in the low pressure crushing mechanism 2, the fixed roller and the movable roller each include
The two ends of the first gear roller main shaft 21 are respectively in rotary supporting fit with the bearing blocks 6;
the base sleeve 22 is fixedly arranged outside the first gear roller main shaft 21, two ends of the base sleeve are respectively provided with a locking plate 24, the locking plates 24 are in step fit with the first gear roller main shaft 21 and in conical surface fit with the base sleeve 22, the locking plates 24 are in key connection with the first gear roller main shaft 21, and the two locking plates 24 are axially locked through bolts;
the shaft sleeve 23 is fixedly arranged outside the base sleeve 22, the two ends of the shaft sleeve are provided with baffle plates, and the baffle plates are fixedly connected with the shaft sleeve 23 and the base sleeve 22 by bolts so that the shaft sleeve 23 synchronously rotates along with the base sleeve 22; the shaft sleeve 23 is provided with a plurality of T-shaped column holes, a plurality of T-shaped tooth columns 25 respectively penetrate through the column holes from the inner sides of the T-shaped column holes in the shaft sleeve 23 outwards, and the tail ends of the T-shaped tooth columns 25 are abutted against the inner ends of the column holes to limit the tooth columns to move out.
In this embodiment, the bushing 23 includes
At least two arc lagging, the axle sleeve 23 that each arc lagging concatenation formed. Preferably six arcuate straps are provided.
In the low-pressure crushing mechanism 2 of the embodiment, the shaft sleeve 23 is composed of six arc-shaped sleeve plates, the radian of each arc-shaped sleeve plate is 60 degrees, the arc-shaped sleeve plates are made of 65Mn steel forgings into a ring sleeve, the ring sleeve is lathed and then divided into six equal parts, cylindrical holes are machined, and after machining is completed, vacuum heat treatment, cylindrical gear lathing and vacuum heat treatment are performed.
In the low-pressure crushing mechanism 2 of this embodiment, first, the base sleeve 22 is mounted on the first tooth roller spindle 21 by means of the left and right locking plates 24, so that the first tooth roller spindle 21 can drive the base sleeve 22 to concentrically rotate; the arc-shaped sleeve plate with the T-shaped tooth column 25 installed is circular outside the base sleeve 22, and finally, bolt locking is carried out through the striker plate, the low-pressure crushing mechanism 2 is formed by removing the structure and assembling, the structure is stable and reliable, the coaxiality of the shaft sleeve 23 is guaranteed, the strength is high, and crushing of the coal gangue with large particle size can be guaranteed by means of the T-shaped column hole.
Specifically, as an alternative embodiment in this embodiment, as shown in fig. 3, in the medium pressure pulverizing mechanism 3, the fixed roller and the movable roller are both comprised of
The two ends of the second smooth roll main shaft 31 are respectively in rotating supporting fit with the bearing seats 6;
the smooth roll sleeve 32 is sleeved outside the second smooth roll main shaft 31;
The pair of conical plates 33 are respectively positioned on two sides of the smooth roller sleeve 32, the conical plates 33 and the second smooth roller spindle 31 form step fit in the axial direction, the conical plates 33 and the second smooth roller spindle 31 form key connection in the circumferential direction, and the conical plates 33 and the smooth roller sleeve 32 form conical surface fit; the two conical plates 33 are axially locked by bolts.
In the medium-pressure pulverizing mechanism 3 of this embodiment, the smooth roller sleeve 32 is connected to the second smooth roller spindle 31 through two tapered plates 33, and the tapered plates 33 and the smooth roller sleeve 32 are in tapered fit, so that the coaxiality between the smooth roller sleeve 32 and the second smooth roller spindle 31 is ensured.
The medium-pressure crushing mechanism 3 of this embodiment rotates relatively through two smooth roller covers 32, and the centering particle diameter gangue is smashed into small-particle diameter gangue, and smooth roller cover 32 forms with the high strength steel, has hardness, and is tough, changes more than one year once, and it is convenient to change, great reduction use cost, realization that can be better is automatic.
Specifically, as an optional implementation manner in this embodiment, as shown in fig. 4, in the high-pressure pulverizing mechanism 4, both the fixed roller and the movable roller comprise
The outer part of the third stud main shaft 41 is sleeved with a stud roller sleeve 42, the stud roller sleeve 42 and the third stud main shaft 41 form interference fit, two sides of the stud roller sleeve 42 are respectively connected with an edge retainer ring 43 through bolts, and the edge retainer ring 43 and the third stud main shaft 41 form step fit in the axial direction so as to limit the stud roller sleeve 42 to move axially;
A water-cooling cavity 411 is formed in the third stud spindle 41, a two-way rotary joint 44 is arranged at a cavity opening of the water-cooling cavity 411, a water inlet hole and a water outlet hole are formed in the two-way rotary joint 44, and the water inlet hole and the water outlet hole are both communicated with the water-cooling cavity 411;
the water inlet pipe 45 is arranged in the water cooling cavity 411, one end of the water inlet pipe 45 is connected with the water inlet hole, and the other end of the water inlet pipe extends to the bottom of the water cooling cavity 411.
In this embodiment, stud roller shell 42 interference fit is on third stud main shaft 41, smashes small-grain-size coal gangue through two stud roller shells 42, becomes coal gangue powder.
In the high pressure powder process mechanism 4, the extrusion force between two stud roller covers 42 will be bigger than the extrusion force in the low pressure crushing mechanism 2, the medium pressure crushing mechanism 3 of top, consequently, the temperature of stud roller cover 42 also can be higher, consequently, carries out the cooling water cooling through the water-cooling chamber 411+ two that set up and leads to rotary joint 44, in time reduces the temperature of two third stud main shafts 41, prevents that stud roller cover 42 high temperature from influencing life.
All set up pressure system 5 in low pressure crushing mechanism 2, medium pressure rubbing crusher constructs 3 and the high pressure powder process mechanism 4, pressure system 5 is arranged in the relative fixed roll of removal roller in the control mechanism and does the removal, controls the distance between two roll mouths promptly, specifically, as shown in fig. 5, pressure system 5 in the three mechanism all includes
A hydraulic station assembly 51 connected to the accumulator assembly 52 and adapted to supply power oil of high pressure to the accumulator assembly 52;
an accumulator assembly 52 having one end in pipe connection with the hydraulic station assembly 51 and the other end connected to a pair of feed cylinders 53;
and push rods of the feeding oil cylinders 53 are respectively connected with the two bearing seats 6 in the moving roller, and oil cavities of the feeding oil cylinders 53 are in pipeline connection with the energy accumulator assembly 52.
In this embodiment, the hydraulic station assembly 51 provides high-pressure power oil to push hydraulic oil to the energy storage component 52, the energy storage component 52 compresses a nitrogen bag in the tank body, so that the system pressure reaches a set pressure value, the oil pump of the hydraulic station assembly 51 stops working, the energy storage component 52 is connected with the feeding oil cylinder 53 through an oil pipe, the high-pressure oil in the energy storage component 52 is conveyed to the feeding oil cylinder 53 through the oil pipe, so that the feeding oil cylinder 53 pushes the two bearing seats 6 of the moving roller, and the coal gangue is crushed.
Specifically, as an alternative implementation manner in this embodiment, as shown in fig. 6, the bearing seat 6 includes
The bearing seat comprises a seat body 61, wherein a bearing cavity is formed in the seat body 61;
the bearing 62 is arranged in the bearing cavity, the outer ring of the bearing is matched with the seat body 61, and the inner ring of the bearing is matched with the main shaft;
The pair of labyrinth seals are respectively arranged at two sides of the bearing 62, each labyrinth seal comprises a seal inner ring 63 and a seal outer ring 64, and the seal inner rings 63 are fixedly connected with the seat body 61; the sealing outer ring 64 is in key connection with the main shaft, so that the main shaft drives the sealing outer ring 64 to rotate, and a plurality of countersunk screws penetrate through the sealing outer ring 64 and then are connected with the main shaft to limit the sealing outer ring 64 to move axially along the main shaft;
and a gland 65 disposed at the end of the spindle and adapted to abut the outer seal ring 64 on the outside of the end.
In above-mentioned low pressure crushing mechanism 2, middling pressure rubbing crusher constructs 3 and high pressure powder process mechanism 4, the bearing frame 6 in this embodiment is all adopted with removing the roller both ends to the fixed roll, promotes the leakproofness between main shaft and the bearing 62, effectively prevents that the dust from entering into in the bearing 62, prolongs bearing 62's life.
Specifically, as an alternative implementation manner in this embodiment, as shown in fig. 7, fig. 8 and fig. 9, the rack 7 includes
A pair of supporting frames 71, an upper span beam 722 assembly 72A and a lower span beam assembly 72B arranged in a front-back direction;
the supporting frame 71 comprises
The two longitudinal seats 711 and the two transverse seats 712 are arranged between the two transverse seats 712, and the two longitudinal seats 711 and the two transverse seats are connected to form a rectangular frame structure;
The connection structure between the longitudinal seat 711 and the transverse seat 712 is as follows:
the first positioning half grooves are formed in the front-back direction, each pair of first positioning half grooves are formed in the longitudinal seat 711 and the transverse seat 712 respectively, and the first positioning half grooves of the longitudinal seat 711 and the first positioning half grooves of the transverse seat 712 form a first positioning groove hole;
the second positioning half grooves are arranged in the left-right direction, each pair of second positioning half grooves are respectively arranged on the longitudinal seat 711 and the transverse seat 712, and the second positioning half grooves of the longitudinal seat 711 and the second positioning half grooves of the transverse seat 712 form a second positioning groove hole;
at least one first positioning pin 741 disposed in the first positioning slot;
at least one second positioning pin 742 disposed within the second positioning slot;
and at least one first locking bolt 731 vertically passing through the vertical seat 711 and the horizontal seat 712 and then connecting a locking nut to tightly connect the vertical seat 711 and the horizontal seat 712.
In this embodiment, the number of the first positioning half grooves is two, and the number of the first positioning pins 741 is two; the number of the second positioning half grooves is two pairs, and the number of the second positioning pins 742 is two.
There are four of the above-mentioned connecting structures in each support frame 71, and the support frames 71 are connected by the above-mentioned connecting structures, and the connecting structures between the vertical seats 711 and the horizontal seats 712 are stabilized by positioning pins.
Specifically, as an optional implementation manner in this embodiment, as shown in fig. 7, 8, and 9, a longitudinal connecting plate 7111 is disposed at the connecting end of the longitudinal seat 711, and the thickness of the longitudinal connecting plate 7111 is greater than or equal to 120 mm;
the two ends of the transverse seat 712 are both provided with transverse connecting plates 7121, and the thickness of the transverse connecting plates 7121 is more than or equal to 120 mm;
the longitudinal connecting plate 7111 and the transverse connecting plate 7121 are both provided with a first positioning half groove and a second positioning half groove;
the locking bolt vertically penetrates through the longitudinal connecting plate 7111 and the transverse connecting plate 7121 and then is connected with a locking nut so as to firmly connect the longitudinal connecting plate 7111 and the transverse connecting plate 7121;
as shown in FIG. 10, the upper and lower span beam assemblies 72A, 72B each include
Two connecting seats 721 respectively fixedly connected to the supporting frames 71 at both sides;
a bridge 722 disposed between the two connection seats 721;
two rubber pads 723 arranged between the bridge 722 and the connecting seat 721;
the second locking bolt 732 sequentially passes through the connecting seat 721, the rubber pad 723 and the bridge 722 in the front-rear direction and then is connected with a locking nut, so that two ends of the bridge 722 are fixedly connected with the connecting seat 721 on the front side and the rear side respectively.
The frame 7 of the embodiment has the following advantages: firstly, the method comprises the following steps: in the connection mechanism between the vertical seat 711 and the horizontal seat 712, a first positioning pin 741 and a second positioning pin 742 are added between the vertical seat 711 and the horizontal seat 712, so that the connection stability between the vertical seat 711 and the horizontal seat 712 is improved; secondly, the method comprises the following steps: the guide rails for installing the fixed roller assembly and the movable roller assembly are added, so that the positions of the fixed roller assembly and the movable roller assembly can be adjusted when the fixed roller assembly and the movable roller assembly are installed, and the distance is adjusted; thirdly, the method comprises the following steps: in the span beam assembly, a rubber pad 723 is added between the connecting seat 721 and the span beam 722, so that the length of the span beam assembly is adjusted by controlling the tightness of the second locking bolt 732, namely, the distance between the front and rear supporting frames 71 is controlled.
A coal gangue pulverizing method adopts the coal gangue pulverizing station, and comprises the following steps:
step S01, pouring the large-particle-size coal gangue into a low-pressure crushing mechanism 2, crushing the large-particle-size coal gangue into medium-particle-size coal gangue by the low-pressure crushing mechanism 2, and conveying the medium-particle-size coal gangue to a medium-pressure crushing mechanism 3;
step S02, crushing the medium-particle-size coal gangue into small-particle-size coal gangue by the medium-pressure crushing mechanism 3, and outputting the small-particle-size coal gangue to the high-pressure pulverizing mechanism 4;
step S03, crushing the small-particle-size coal gangue into coal gangue powder by the high-pressure powder preparation mechanism 4, and outputting the coal gangue powder to the material elevator 81;
step S04, the material elevator 81 conveys the coal gangue powder to a material screening machine 82 for screening;
step S05, the material sieving machine 82 discharges the qualified coal gangue fine material from the fine particle outlet, and the unqualified coal gangue coarse material is conveyed to the high-pressure pulverizing mechanism 4 for re-pulverization.
The coal gangue powder making station provided by the invention can be used for pointedly crushing coal gangue step by step to powder, and finally obtaining qualified coal gangue fine powder through screening, and has the advantages of high coal gangue powder making efficiency, stable and reliable mechanism, convenience in maintenance and replacement, great reduction in use cost and better realization of automation.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. A coal gangue pulverizing station is characterized by comprising
The low-pressure crushing mechanism is arranged at the upper end of the medium-pressure crusher, a discharge port at the lower end of the low-pressure crushing mechanism is connected with a feed port of the medium-pressure crushing mechanism, and the low-pressure crushing mechanism is suitable for crushing the large-particle-size coal gangue into medium-particle-size coal gangue and then conveying the medium-particle-size coal gangue to the medium-pressure crushing mechanism;
the medium-pressure crushing mechanism is arranged between the low-pressure crushing mechanism and the high-pressure powder-making mechanism and is suitable for crushing the medium-particle-size coal gangue into small-particle-size coal gangue and outputting the small-particle-size coal gangue to the high-pressure powder-making mechanism;
the high-pressure pulverizing mechanism is arranged below the medium-pressure pulverizing mechanism and is suitable for pulverizing small-particle-size coal gangue into coal gangue powder and outputting the coal gangue powder to the material elevator;
the material elevator is connected with the discharge port of the high-pressure powder making mechanism at the feed port and is suitable for conveying the coal gangue powder to the material screening machine;
the coarse powder port of the material screening machine is connected with the feed inlet of the high-pressure powder making mechanism; the material screening machine is suitable for screening out coarse coal gangue materials and fine coal gangue materials from the coal gangue powder materials, and conveying the coarse coal gangue materials to the high-pressure powder making mechanism for smashing again.
2. The coal refuse pulverizing station of claim 1, wherein,
Broken mechanism of low pressure, middling pressure rubbing crusher constructs and high-pressure powder process mechanism all includes
A frame;
the two ends of the fixed roller are connected with the rack through bearing seats and are fixedly arranged on the rack;
the two ends of the movable roller are connected with the rack through bearing seats and are movably arranged on the rack;
and the pressure system is connected with the two bearing seats of the movable roller and is suitable for driving the movable roller to extrude and move towards the first fixed roller.
3. The coal refuse pulverizing station of claim 2, wherein,
in the low-pressure crushing mechanism, the fixed roller and the movable roller both comprise
The two ends of the first gear roller main shaft are respectively in rotating supporting fit with the bearing seats;
the base sleeve is fixedly arranged outside the first gear roller main shaft, two ends of the base sleeve are respectively provided with a locking plate, the locking plates are in step fit with the first gear roller main shaft and in conical surface fit with the base sleeve, the locking plates are in key connection with the first gear roller main shaft, and the two locking plates are axially locked through bolts;
the shaft sleeve is fixedly arranged outside the base sleeve, the two ends of the shaft sleeve are provided with the striker plates, and the striker plates are fixedly connected with the shaft sleeve and the base sleeve by bolts so that the shaft sleeve synchronously rotates along with the base sleeve; the shaft sleeve is provided with a plurality of T-shaped column holes, a plurality of T-shaped tooth columns respectively penetrate out of the column holes from the inner sides of the T-shaped column holes in the shaft sleeve, and the tail ends of the T-shaped tooth columns are abutted with the inner ends of the column holes so as to limit the tooth columns to move out.
4. The coal refuse pulverizing station of claim 2, wherein,
among the middling pressure rubbing crusher constructs, fixed roll and removal roller all include
Two ends of the second smooth roll main shaft are respectively in rotary supporting fit with the bearing seats;
the smooth roll sleeve is sleeved outside the second smooth roll main shaft;
the pair of conical plates are respectively positioned on two sides of the smooth roll sleeve, the conical plates and the second smooth roll main shaft form step fit in the axial direction, the conical plates and the second smooth roll main shaft form key connection in the circumferential direction, and the conical plates and the smooth roll sleeve form conical surface fit; the two conical plates are axially locked through bolts.
5. The coal refuse pulverizing station of claim 2,
in the high-pressure pulverizing mechanism, the fixed roller and the movable roller both comprise
The outer part of the third stud main shaft is sleeved with a stud roller sleeve, the stud roller sleeve and the third stud main shaft form interference fit, two sides of the stud roller sleeve are respectively connected with an edge retainer ring through bolts, and the edge retainer ring and the third stud main shaft form step fit in the axial direction so as to limit the axial movement of the stud roller sleeve;
a water-cooling cavity is formed in the third stud spindle, a cavity opening of the water-cooling cavity is provided with a two-way rotary joint, a water inlet hole and a water outlet hole are formed in the two-way rotary joint, and the water inlet hole and the water outlet hole are both communicated with the water-cooling cavity;
The water inlet pipe is arranged in the water cooling cavity, one end of the water inlet pipe is connected with the water inlet hole, and the other end of the water inlet pipe extends to the bottom of the water cooling cavity.
6. The coal refuse pulverizing station of claim 2,
the pressure system comprises
The hydraulic station assembly is connected with the energy accumulator assembly and is suitable for providing high-pressure power oil for the energy accumulator assembly;
one end of the energy accumulator component is connected with the hydraulic station assembly through a pipeline, and the other end of the energy accumulator component is connected with a pair of feeding oil cylinders;
and push rods of the feeding oil cylinders are respectively connected with two bearing seats in the moving roller, and oil cavities of the feeding oil cylinders are in pipeline connection with the energy accumulator assembly.
7. The coal refuse pulverizing station of claim 2,
the bearing seat comprises
The bearing seat comprises a seat body, wherein a bearing cavity is formed in the seat body;
the bearing is arranged in the bearing cavity, the outer ring of the bearing is matched with the seat body, and the inner ring of the bearing is matched with the main shaft;
the labyrinth seals are respectively arranged on two sides of the bearing and comprise sealing inner rings and sealing outer rings, and the sealing inner rings are fixedly connected with the base body; the sealing outer ring is in key connection with the main shaft, so that the main shaft drives the sealing outer ring to rotate, and the countersunk head screws penetrate through the sealing outer ring and then are connected with the main shaft to limit the sealing outer ring to move axially along the main shaft;
And the gland is arranged at the end part of the spindle and is suitable for abutting the sealing outer ring at the outer side of the end part.
8. The coal refuse pulverizing station of claim 2,
the frame comprises
A pair of supporting frames, an upper span beam assembly and a lower span beam assembly which are arranged in the front-back direction;
the supporting frame comprises
The two longitudinal seats and the two transverse seats are positioned between the two transverse seats, and the two longitudinal seats and the two transverse seats are connected to form a rectangular frame structure;
the connecting structure between the longitudinal seat and the transverse seat is as follows:
the first positioning half grooves are arranged in the front-back direction, each pair of first positioning half grooves are respectively arranged on the longitudinal seat and the transverse seat, and the first positioning half grooves of the longitudinal seat and the first positioning half grooves of the transverse seat form a first positioning groove hole;
the second positioning half grooves are arranged in the left-right direction, each pair of second positioning half grooves are respectively arranged on the longitudinal seat and the transverse seat, and the second positioning half grooves of the longitudinal seat and the second positioning half grooves of the transverse seat form a second positioning groove hole;
at least one first positioning pin arranged in the first positioning slot;
at least one second positioning pin arranged in the second positioning slot hole;
And the first locking bolt vertically penetrates through the longitudinal seat and the transverse seat and then is connected with the locking nut so as to tightly connect the longitudinal seat and the transverse seat.
9. The coal refuse pulverizing station of claim 8,
a longitudinal connecting plate is arranged at the connecting end of the longitudinal seat, and the thickness of the longitudinal connecting plate is more than or equal to 120 mm;
the two ends of the transverse seat are respectively provided with a transverse connecting plate, and the thickness of each transverse connecting plate is more than or equal to 120 mm;
the longitudinal connecting plate and the transverse connecting plate are respectively provided with a first positioning half groove and a second positioning half groove;
the locking bolt vertically penetrates through the longitudinal connecting plate and the transverse connecting plate and then is connected with the locking nut so as to fixedly connect the longitudinal connecting plate and the transverse connecting plate;
the upper span beam assembly and the lower span beam assembly both comprise
The two connecting seats are respectively and fixedly connected with the supporting frames on the two sides;
the span beam is arranged between the two connecting seats;
the two rubber pads are arranged between the span beam and the connecting seat;
the second locking bolt sequentially penetrates through the connecting seat, the rubber pad and the cross beam from front to back and is connected with the locking nut, so that two ends of the cross beam are fixedly connected with the connecting seat on the front side and the rear side respectively.
10. A coal gangue pulverizing method, characterized in that the coal gangue pulverizing station of any one of claims 1 to 9 is adopted, comprising the following steps:
Step S01, pouring the large-particle-size coal gangue into a low-pressure crushing mechanism, crushing the large-particle-size coal gangue into medium-particle-size coal gangue by the low-pressure crushing mechanism, and conveying the medium-particle-size coal gangue to a medium-pressure crushing mechanism;
step S02, crushing the medium-particle-size coal gangue into small-particle-size coal gangue by a medium-pressure crushing mechanism, and outputting the small-particle-size coal gangue to a high-pressure pulverizing mechanism;
step S03, crushing the small-particle-size coal gangue into coal gangue powder by a high-pressure powder-making mechanism, and outputting the coal gangue powder to a material hoist;
step S04, the material elevator conveys the coal gangue powder to a material screening machine for screening;
and step S05, discharging qualified coal gangue fine materials from the fine particle outlet by the material screening machine, and conveying unqualified coal gangue coarse materials to the high-pressure powder-making mechanism for secondary crushing.
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| CN202210332646.4A CN114749257A (en) | 2022-03-30 | 2022-03-30 | Coal gangue powder production station and coal gangue powder production method |
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| CN202210332646.4A CN114749257A (en) | 2022-03-30 | 2022-03-30 | Coal gangue powder production station and coal gangue powder production method |
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202366747U (en) * | 2011-12-14 | 2012-08-08 | 黑龙江昱泰重型机器制造有限公司 | Double-tooth roller strong crusher |
| CN102836755A (en) * | 2012-08-23 | 2012-12-26 | 陕西宝深机械(集团)有限公司 | Novel tooth type oppositely-rolling roller crusher |
| CN203291904U (en) * | 2013-04-09 | 2013-11-20 | 山东矿机迈科建材机械有限公司 | Stone-removing crusher |
| CN204194088U (en) * | 2014-11-12 | 2015-03-11 | 广东翔龙科技股份有限公司 | A kind of high capacity crusher |
| CN104858613A (en) * | 2015-03-26 | 2015-08-26 | 中钢集团安徽天源科技股份有限公司 | Device and method for dismantling roller shell of high-pressure roller mill |
| CN105458614A (en) * | 2016-01-21 | 2016-04-06 | 中建材（合肥）粉体科技装备有限公司 | Roller press roller shell thermal detachment device and thermal detachment method thereof |
| CN206868406U (en) * | 2017-05-13 | 2018-01-12 | 中建材（合肥）粉体科技装备有限公司 | A kind of roller sleeve of high pressure roller grinder more changing device for factories and miness environment |
| CN208771508U (en) * | 2018-08-08 | 2019-04-23 | 山东华特磁电科技股份有限公司 | Double transmission high-pressure roller mills |
| CN209549588U (en) * | 2018-12-29 | 2019-10-29 | 河南郑矿机器有限公司 | A kind of three rod-toothed crushers |
| CN209968605U (en) * | 2019-04-28 | 2020-01-21 | 张建礼 | Multifunctional coal pulverizer |
| CN210632193U (en) * | 2019-06-25 | 2020-05-29 | 贵阳学院 | Coal gangue crushing device |
| CN111346718A (en) * | 2020-03-03 | 2020-06-30 | 萍乡学院 | Coal gangue crushing and pulverizing method |
| CN111359761A (en) * | 2020-04-13 | 2020-07-03 | 济南大学 | Coal sorting equipment |
-
2022
- 2022-03-30 CN CN202210332646.4A patent/CN114749257A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202366747U (en) * | 2011-12-14 | 2012-08-08 | 黑龙江昱泰重型机器制造有限公司 | Double-tooth roller strong crusher |
| CN102836755A (en) * | 2012-08-23 | 2012-12-26 | 陕西宝深机械(集团)有限公司 | Novel tooth type oppositely-rolling roller crusher |
| CN203291904U (en) * | 2013-04-09 | 2013-11-20 | 山东矿机迈科建材机械有限公司 | Stone-removing crusher |
| CN204194088U (en) * | 2014-11-12 | 2015-03-11 | 广东翔龙科技股份有限公司 | A kind of high capacity crusher |
| CN104858613A (en) * | 2015-03-26 | 2015-08-26 | 中钢集团安徽天源科技股份有限公司 | Device and method for dismantling roller shell of high-pressure roller mill |
| CN105458614A (en) * | 2016-01-21 | 2016-04-06 | 中建材（合肥）粉体科技装备有限公司 | Roller press roller shell thermal detachment device and thermal detachment method thereof |
| CN206868406U (en) * | 2017-05-13 | 2018-01-12 | 中建材（合肥）粉体科技装备有限公司 | A kind of roller sleeve of high pressure roller grinder more changing device for factories and miness environment |
| CN208771508U (en) * | 2018-08-08 | 2019-04-23 | 山东华特磁电科技股份有限公司 | Double transmission high-pressure roller mills |
| CN209549588U (en) * | 2018-12-29 | 2019-10-29 | 河南郑矿机器有限公司 | A kind of three rod-toothed crushers |
| CN209968605U (en) * | 2019-04-28 | 2020-01-21 | 张建礼 | Multifunctional coal pulverizer |
| CN210632193U (en) * | 2019-06-25 | 2020-05-29 | 贵阳学院 | Coal gangue crushing device |
| CN111346718A (en) * | 2020-03-03 | 2020-06-30 | 萍乡学院 | Coal gangue crushing and pulverizing method |
| CN111359761A (en) * | 2020-04-13 | 2020-07-03 | 济南大学 | Coal sorting equipment |
Non-Patent Citations (1)
| Title |
|---|
| 王新文: "现代选矿技术手册 第1册 破碎筛分与磨矿分级", vol. 1, 武汉理工大学出版社, pages: 179 - 180 * |
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