CN105854992A - Wet method roller type disintegrating mill and grading closed-circuit process thereof - Google Patents
Wet method roller type disintegrating mill and grading closed-circuit process thereof Download PDFInfo
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- CN105854992A CN105854992A CN201610207237.6A CN201610207237A CN105854992A CN 105854992 A CN105854992 A CN 105854992A CN 201610207237 A CN201610207237 A CN 201610207237A CN 105854992 A CN105854992 A CN 105854992A
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- Prior art keywords
- mill
- wet
- roll
- grinding roller
- hydraulic
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- 239000000463 materials Substances 0.000 claims abstract description 24
- 239000011901 water Substances 0.000 claims abstract description 12
- 239000002002 slurries Substances 0.000 claims abstract description 3
- 238000000227 grinding Methods 0.000 claims description 60
- 239000004744 fabrics Substances 0.000 claims description 11
- 239000011257 shell materials Substances 0.000 claims description 8
- 239000008187 granular materials Substances 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 abstract description 8
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- 230000005540 biological transmission Effects 0.000 abstract 1
- 238000005516 engineering processes Methods 0.000 description 6
- 238000010333 wet classification Methods 0.000 description 4
- 229910052500 inorganic minerals Inorganic materials 0.000 description 3
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound 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[C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004568 cements Substances 0.000 description 1
- 238000005039 chemical industry Methods 0.000 description 1
- 238000010586 diagrams Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 239000000843 powders Substances 0.000 description 1
- 239000002994 raw materials Substances 0.000 description 1
- 239000011343 solid materials Substances 0.000 description 1
- 230000001131 transforming Effects 0.000 description 1
- 238000001238 wet grinding Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
- B02C15/007—Mills with rollers pressed against a rotary horizontal disc
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
- B02C2015/002—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs combined with a classifier
Abstract
Description
Technical field
The invention belongs to crushing mechanism field, be specifically related to a kind of crushing mechanism using mill and Its application.
Background technology
Due to the needs of mineral processing technology, the milling equipment of Mineral Processing Industry generally uses wet grinding mill Ore deposit, ore milling concentration is generally 40%-60%, and the milling equipment of employing is generally ball mill (example Such as patent CN102698851A, a kind of steel ball mill), autogenous tumbling mill, semi-autogenous mill, also Having the high-pressure roller mill using dry method to carry out pre-comminution, the slip after wet method comminution uses cyclone Or the classification such as vibrosieve or spiral classifier, coarse granule material returns grinding machine and forms closed cycle. Using above wet method grinding apparatus and technique usual comminution power consumption and steel consumption is the main of the sector Production cost, power consumption and steel consumption are the biggest.Ball mill by wet process usually requires that mill feed size is less than 25mm。
Roll-type disintegrator is mainly at raw material of industry mills such as cement and other building, chemical industry, potteries The machinery of broken field application.Current roll-type disintegrator generally uses dry method comminution, enters grinding roller Front material moisture requires less than 3%, and the material more than more than 3% must use hot blast to dry Dry so that satisfactory comminution material can extract mill body out, no in the way of using air classification Satisfactory comminution material comes back to carry out on mill comminution again, is equipped with dry powder and returns outside grinding machine Receipts system is to reclaim satisfactory ground material.With dry method ball mill and dry method autogenous grinding Machine, semi-autogenous mill are compared, and the power consumption of dry method roll-type disintegrator is low 30% the highest, and steel consumption is low About 40%, mill feed size can control at below 80mm.
Grinding of mine material is consumed energy greatly, steel consumption is the biggest, it is necessary to changing by crushing and milling type machine Good come saves energy, reduce cost.
Summary of the invention
The problem existed for this ore dressing field ore grinding, it is an object of the present invention to provide a kind of wet method roller Formula disintegrator, relates to a kind of wet method grinding apparatus and a kind of supporting for this wet method grinding apparatus Grading technology, is mainly used in wet method comminution and the classification of Ore, it is also possible to wet for other needs The solid material of method comminution.
It is another object of the present invention to propose a kind of closed circuit technique of classification, i.e. wet method roll-type disintegrator Application.
The concrete technical scheme realizing above-mentioned purpose of the present invention is:
A kind of wet method roll-type disintegrator, including mill, grinding roller, motor, reductor, hydraulic pressure system System, rocking arm；Described grinding roller is positioned at above mill and contacts with mill, and described grinding roller is with rocking arm even Connecing, described rocking arm is connected with hydraulic system；Described mill is connected with motor by actuating device； Described mill periphery is provided with baffle plate or the screen cloth stopping slip, arranges outside baffle plate or screen cloth Having splicing groove, splicing groove to be connected with discharge nozzle, the slip in discharge nozzle is connected to outside slip and divides Level equipment.
Wherein, described mill outward flange encloses the atresia being provided with height for grinding wheel diameter 0.05-0.15 times Baffle plate or screen cloth, described baffle plate or screen cloth are 55～90 ° with the angle of mill plane, arrange gear The effect of plate and screen cloth is to prevent large granular materials from spilling disintegrator, and its height, sieve aperture are big Little and with mill plane angle is the major way of regulation comminution granularity.
Wherein, the screen cloth that described mill outward flange is arranged has the circular hole of straight circular hole or expansion, The aperture of described straight circular hole is 0.1～0.6mm, and the circular hole of described expansion towards the aperture of mill is 0.1～0.4mm, the aperture outside mill is 0.2～0.6mm.
Wherein, above described mill, be covered with upper shell, upper shell is provided with into water water pipe and Feed chute；The reductor of described actuating device is connected with motor at the bottom of grinding machine, reductor.
Wherein, described grinding roller has 3～5, a diameter of the 1800 of grinding roller～2900mm, grinding roller with Rocking arm is connected, and external hydraulic system is to rocking arm pressure, and pressure is passed to grinding roller, grinding roller pressure by rocking arm The size of power is mainly by HYDRAULIC CONTROL SYSTEM, and grinding roller pressure maximum pressure can control 40MPa。
Described roll-type disintegrator by the pressure between HYDRAULIC CONTROL SYSTEM grinding roller and mill, mill by Driven by motor moves in a circle, and grinding roller is the most motionless.
Further, described wet method roll-type disintegrator constitutes comminution extension set together with classifying equipoment System.Specifically, described discharge nozzle is connected by pipeline classifying equipoment, described extension facility For the one in cyclone, vibrosieve, spiral classifier.
The wet method roll-type disintegrator method that carries out grinding classification that the application present invention proposes: material with Water is mixed to form mass concentration 30～the slip of 70%, and slip joins on mill, hydraulic system Operating pressure be 0～40MPa, hydraulic system drive rocking arm drive grinding roller work, the material ground Slurry falls into splicing groove and discharge nozzle, subsequently into classifying equipoment.
Wherein, the pressure between described HYDRAULIC CONTROL SYSTEM grinding roller and mill, mill is by motor belt motor Move and move in a circle, and grinding roller is the most motionless.
Wherein, the thick material of described classifying equipoment connects the charging aperture above mill by pipeline, Shurry pump or other coarse granule conveying equipment it is provided with, by isolated bulky grain on described pipeline Again grind in being transported to wet method roll-type disintegrator.
Further, the raw meal particle size of mill is entered at below 80mm.
Method of the present invention, it is not limited to the title of this equipment, and it is equipment itself Structure and comminution mode；The present invention comprises the claim to similar constructions equipment.
Material and water are mixed to form mass concentration 30～the slip of 70%, and slip joins on mill, The operating pressure of hydraulic system is 0～40MPa, and hydraulic system drives rocking arm to drive grinding roller work, The slip ground falls into discharge nozzle, subsequently into classifying equipoment.
The beneficial effects of the present invention is:
The present invention propose wet method roll-type disintegrator, combine dry method roll-type disintegrator feature and The process characteristic of wet classification, the dry method comminution of transformation dry method roller mill is wet method comminution, removes The air classification system of dry method roller mill, changes stop gauge, discharge device into, drawing mechanism, Preliminary wet classification is realized in grinding machine；Utilize wet classification apparatus by the slip after roll-type comminution Formed at the outer reclassification of wet method roll-type disintegrator, wet method roll-type disintegrator and outside wet classification Closed cycle, can meet the needs of mineral processing technology, can improve again comminution efficiency, fall Low comminution power consumption and steel consumption；As required, mill feed size can be increased substantially, simplify comminution work Skill.
Accompanying drawing explanation
Fig. 1 is roll-type disintegrator structure diagram.
Fig. 2 is wet method roll-type disintegrator and the closed circuit technological process of cyclone cooperation of the present invention Figure.
Fig. 3 is wet method roll-type disintegrator and the closed circuit technological process of screening plant cooperation of the present invention Figure.
Fig. 4 is wet method roll-type disintegrator of the present invention and the closed circuit technological process of spiral classifier cooperation Figure.
In figure, 1, water pipe；2, feed chute；3, upper shell；4, rocking arm；5, baffle plate； 6, lower house；7, hydraulic system；8, motor；9, reductor；10, mill；11、 Grinding roller；12, splicing groove；13, discharge nozzle.
Detailed description of the invention
Following example are used for illustrating the present invention, but are not limited to the scope of the present invention.Below Described is only the preferred embodiment of the present invention, it is noted that common for the art For technical staff, on the premise of without departing from the technology of the present invention principle, it is also possible to make some Improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.
In embodiment, if no special instructions, the technological means used is the conventional skill of this area Art means.
Embodiment 1
See Fig. 1, a kind of wet method roll-type disintegrator, including mill 10, grinding roller 11, motor 8, Hydraulic system 7, Rocker arm 4；Three grinding roller 11 diameters are 2100mm, and grinding roller is positioned at mill 10 Contacting above and with mill, grinding roller 11 is connected with Rocker arm 4, and described Rocker arm 4 is with hydraulic system 7 even Connect；Mill 10 is connected with motor 8 by reductor 9；Described mill periphery rational height is The imperforate baffle 5 of 100mm；Baffle plate 5 is 80 ° with the angle of mill plane；Set outside baffle plate Put splicing groove 12；Splicing groove 12 is connected with discharge nozzle 13；Slip in discharge nozzle flows out disintegrator.
It is covered with upper shell 3 above described mill, upper shell 3 is provided with into the water pipe 1 of water and enters Material chute 2；Described hydraulic system 7, it is positioned at the reductor below mill and is enclosed in lower house 6.
Such as Fig. 2, discharging opening connects cyclone by pipeline and shurry pump.The end of cyclone, flows out The coarse granule that mouth is discharged charging aperture in shurry pump is transported to grinding machine.
The method that application the present embodiment wet method roll-type disintegrator carries out grinding classification:
Material is magnetic iron ore, and particle diameter is less than 25mm, enters disintegrator by charging aperture, And it being mixed to form, with water, the slip that mass concentration is about 30%, slip is flowed on mill, hydraulic pressure The operating pressure of system is 15MPa, and hydraulic system drives rocking arm to drive grinding roller work, grinds Slip overflows baffle plate, falls into splicing groove, then enters cyclone by discharge nozzle, shurry pump etc.. The coarse granule that cyclone underflow outlet is discharged charging aperture in shurry pump is transported to grinding machine is again Comminution.
Use assembly of the invention, grind 1 ton of magnetic iron ore to the consumption of granularity 70%-0.074mm Electricity is 21kw h.
Embodiment 2
In the device of the present embodiment, mill 10 outward flange is provided with sieve plate, sieve plate and mill plane Angle is 85 °.Having straight circular hole on sieve plate, the aperture of this straight circular hole is 0.3mm.
In the present embodiment, hydraulic system pressure 12MPa, grinding roller number is 4, grinding roller 11 Diameter 2900mm, material is Pb-Zn deposits, charging particle diameter be-12mm (below 12mm). Such as Fig. 3, external classification uses screening plant, and underproof thick material shurry pump is transported to wet Regrind in method roll-type disintegrator.
Embodiment 3
In the present embodiment, the grinding roller employing hydraulic system 7 of wet method roll-type disintegrator gives grinding roller and adds Load arm 4 pressure, pressure is sent to grinding roller 11, the hydraulic system of grinding roller 11 by loading arm 4 again Pressure is 20MPa, and grinding roller number is 5, the diameter 1800mm of grinding roller 11, and material is Graphite ore, baffle plate uses sieve plate, is 75 ° with the angle of mill plane, and sieve plate hole is for expanding Circular hole, be 0.2mm to the aperture within grinding machine, be 0.3mm to the aperture outside grinding machine； Such as Fig. 4, external classification uses spiral classifier, and underproof thick material is from spiral classifier Bottom land flows out, and regrinds in being transported to wet method roll-type disintegrator with shurry pump.
The advantage of sieve plate employing expanded hole is that the sieve aperture of sieve plate is not easy blocking.
Such as GMG3248 type ball mill by wet process, mill diameter is 3200mm, a length of 4800mm, for grinding magnetic iron ore, mill feed size is-12mm, and ore milling concentration is 60%, Using cyclone to be formed closed circuit, coarse granule returns to ball mill, and the overflow product of cyclone is 70%-0.074mm, the power consumption of 1 ton of product is 30kw h, and steel consumption is 1.2kg.
Disclosed above or the embodiment that requires is at the model less than existing disclosed laboratory facilities Enclose and interior can make or implement.All of product described by the preferred embodiment of the present invention and / or method, refers to that those do not violate idea of the invention, can the using of scope and spirit expressly In this product and/or experimental technique and following step.To technology hands in described technique Section all of change and improvement, belong to the claims in the present invention definition concept, scope and Spirit.
Claims (10)
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| CN201610207237.6A CN105854992A (en) | 2016-04-05 | 2016-04-05 | Wet method roller type disintegrating mill and grading closed-circuit process thereof |
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| CN201610207237.6A CN105854992A (en) | 2016-04-05 | 2016-04-05 | Wet method roller type disintegrating mill and grading closed-circuit process thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106540783A (en) * | 2016-12-09 | 2017-03-29 | 长沙矿冶研究院有限责任公司 | A kind of wet type roller type vertical mill machine |
| CN106732966A (en) * | 2016-12-09 | 2017-05-31 | 长沙矿冶研究院有限责任公司 | A kind of wet type roll-type grinding system |
| CN108246424A (en) * | 2017-12-26 | 2018-07-06 | 成都鼎信致远科技有限公司 | A kind of complete edge runner-wet mill of discharging |
| CN108311224A (en) * | 2018-02-01 | 2018-07-24 | 龙岩亿丰机械科技有限公司 | A kind of full-automatic Vertical Mill and its control method |
| CN109833945A (en) * | 2019-03-19 | 2019-06-04 | 江苏振强机械科技股份有限公司 | A kind of abrasive disk type sand making machine |
| CN110090696A (en) * | 2019-03-19 | 2019-08-06 | 江苏振强机械科技股份有限公司 | A kind of pressure mill formula sand making machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108246424A (en) * | 2017-12-26 | 2018-07-06 | 成都鼎信致远科技有限公司 | A kind of complete edge runner-wet mill of discharging |
| CN108311224A (en) * | 2018-02-01 | 2018-07-24 | 龙岩亿丰机械科技有限公司 | A kind of full-automatic Vertical Mill and its control method |
| CN108311224B (en) * | 2018-02-01 | 2019-11-15 | 龙岩亿丰机械科技有限公司 | A kind of full-automatic Vertical Mill and its control method |
| CN109833945A (en) * | 2019-03-19 | 2019-06-04 | 江苏振强机械科技股份有限公司 | A kind of abrasive disk type sand making machine |
| CN110090696A (en) * | 2019-03-19 | 2019-08-06 | 江苏振强机械科技股份有限公司 | A kind of pressure mill formula sand making machine |
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Application publication date: 20160817 |