CN108816395A - A kind of variable-pitch auger blender of vertical mixing mill - Google Patents

A kind of variable-pitch auger blender of vertical mixing mill Download PDF

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Publication number
CN108816395A
CN108816395A CN201810899674.8A CN201810899674A CN108816395A CN 108816395 A CN108816395 A CN 108816395A CN 201810899674 A CN201810899674 A CN 201810899674A CN 108816395 A CN108816395 A CN 108816395A
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CN
China
Prior art keywords
screw
lining board
pitch
supporting plate
spiral
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810899674.8A
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Chinese (zh)
Inventor
宋现洲
张廷龙
韩春阳
胡国辉
李雪
王铭浩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Luoyang Mining Machinery and Engineering Design Institute Co Ltd
Original Assignee
Luoyang Mining Machinery and Engineering Design Institute Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Luoyang Mining Machinery and Engineering Design Institute Co Ltd filed Critical Luoyang Mining Machinery and Engineering Design Institute Co Ltd
Priority to CN201810899674.8A priority Critical patent/CN108816395A/en
Publication of CN108816395A publication Critical patent/CN108816395A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/16Mills in which a fixed container houses stirring means tumbling the charge
    • B02C17/163Stirring means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/10Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with one or a few disintegrating members arranged in the container

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)

Abstract

The present invention discloses a kind of variable-pitch auger blender of vertical mixing mill,Including helical axis,Two spiral supporting plates symmetrical in the shape of a spiral are equipped on the periphery of helical axis,It is equipped with and the consistent screw lining board of its screw pitch on the spiral supporting plate,The width of screw lining board is greater than the width of spiral supporting plate,Two spiral supporting plates respectively by several upper spiral supporting plates and lower spiral supporting plate butt welding at,The screw pitch of upper spiral supporting plate is less than the screw pitch of lower spiral supporting plate,Screw lining board includes upper,In,Lower screw lining board,Upper screw lining board is fixed on spiral supporting plate,In,Lower screw lining board is fixed on lower spiral supporting plate,The screw pitch of upper screw lining board is identical as upper spiral supporting plate screw pitch,In,The screw pitch of lower screw lining board is identical as lower spiral supporting plate screw pitch,Part is fastened by bolts between screw lining board and spiral supporting plate to fix conjunction,Blender screw pitch is changed from small to big from top to bottom,Meet the actual conditions that material grade is layered in Ball-stirring mill,Improve grinding efficiency.

Description

A kind of variable-pitch auger blender of vertical mixing mill
Technical field
The invention belongs to a kind of stirrings of the variable-pitch auger of grinding attachment technical field more particularly to large-scale vertical Ball-stirring mill Device.
Background technique
Vertical mixing mill is a kind of connected superfine pulverizer, be widely used in metal mine regrind or fine grinding operation in, work Principle is the stirring action by spiral agitator, so that the abrasive media filled inside Ball-stirring mill and being ground material and stirring Complicated abrasive action or shuttling movement are done in grinding cylinder, to realize the high-efficient grinding of material, vertical mixing mill is advanced with its Grinding mechanism, simple structure and process flow, good Operation and Maintenance by more and more be used as ore-dressing technique it is thin Grind equipment.
Spiral agitator is the critical component of vertical mixing mill, and the energy transmission that it exports motor is to abrasive media and object Material, structure size directly affect grinding efficiency, and screw pitch is the important feature parameter of spiral agitator, and the size of numerical value is direct The stress condition of abrasive media is influenced, when screw pitch is larger, helix angle is big, and abrasive media and material vertical velocity are larger, squeezes It acts on that larger, grinding and peeling effect is smaller, is suitable for the more coarsely graded material of grinding, when screw pitch is smaller, helix angle is small, abrasive media Smaller with material vertical velocity, squeezing action is smaller, grinding and peeling effect is larger, is suitable for the more fine-graded material of grinding.
Due to the effect of vertical mixing mill gravity classification, coarsely graded material is gathered in the lower part of spiral agitator, particulate The material of grade is gathered in the top of spiral agitator, and material grade is smaller, to reach identical reduction ratio, and ore grinding energy consumption is got over Height, the severity of grind needed are bigger;Due to the effect of abrasive media gravity, vertical mixing mill lower part abrasive media and material by Pressure it is larger, severity of grind is higher, and the pressure that top abrasive media and material are subject to is smaller, and severity of grind is lower, under It is gradually reduced to upper severity of grind, spiral agitator uses single screw pitch in traditional vertical mixing mill, and which results in spiral shells The severity of grind that rotation blender top needs the relatively fine particle of bigger severity of grind to be subject to is smaller instead, is not suitable for vertical mixing mill The middle and upper part material actual conditions different with lower part material size, result in equipment mill efficiency is low and wearing piece uses Service life is short, therefore, is badly in need of developing a kind of new and effective variable-pitch auger blender.
Summary of the invention
In order to solve the technical problem in background technique, the present invention discloses a kind of variable-pitch auger stirring of vertical mixing mill Device, the spiral supporting plate to be changed from small to big from top to bottom using screw pitch meet the actual conditions that material grade is layered in vertical mixing mill, Improve grinding efficiency.
In order to achieve the above-mentioned object of the invention, the present invention adopts the following technical solutions:
A kind of variable-pitch auger blender of vertical mixing mill, including helical axis 1 are equipped with two on the periphery of helical axis 1 Spiral spiral supporting plate, two spiral supporting plates are symmetrical, and two spiral supporting plate screw pitch are changed from small to big from top to bottom, The spiral supporting plate, which is equipped with, is greater than the width of spiral supporting plate with the consistent screw lining board of its screw pitch, the width of screw lining board, and two Spiral supporting plate is respectively by several upper spiral supporting plate 5-1 and lower spiral supporting plate 5-2 butt welding at the spiral shell of upper spiral supporting plate 5-1 Away from the screw pitch for being less than lower spiral supporting plate 5-2, screw lining board includes upper screw lining board 2-1, middle screw lining board 2-2, lower screw lining board 2-3, upper screw lining board 2-1 are fixed on spiral supporting plate 5-1, and middle screw lining board 2-2 and lower screw lining board 2-3 are fixed on lower spiral shell It revolves on supporting plate 5-2, the screw pitch of upper screw lining board 2-1 is identical as upper spiral supporting plate 5-1 screw pitch, middle screw lining board 2-2 and lower spiral The screw pitch of liner plate 2-3 is identical as lower spiral supporting plate 5-2 screw pitch, and part 3 are fastened by bolts between screw lining board and spiral supporting plate It closes and fixes.
The variable-pitch auger blender of the vertical mixing mill, upper screw lining board 2-1 and middle screw lining board 2-2's is upper and lower Surface screw pitch keeps equal, and the following table face pitch of lower screw lining board 2-3 is identical as the screw pitch of middle screw lining board 2-2, lower spiral lining It is designed using more screw pitch structures the upper surface of plate 2-3.
The variable-pitch auger blender of the vertical mixing mill, upper screw lining board 2-1, middle screw lining board 2-2, lower spiral lining Plate 2-3 liner plate thickness successively thickeies from top to bottom.
The variable-pitch auger blender of the vertical mixing mill, 1 upper end of helical axis are equipped with connecting flange, and helical axis 1 passes through Connecting flange and transmission axis connection.
The variable-pitch auger blender of the vertical mixing mill, is equipped with several bolts hole, spiral lining on spiral supporting plate Conjunction is fixed by gib-headed bolt between plate and spiral supporting plate.
The variable-pitch auger blender of the vertical mixing mill is all provided in the periphery of helical axis 1 and spiral supporting plate surface There is protective layer, the protective layer is wear-and corrosion-resistant rubber 4.
The variable-pitch auger blender of the vertical mixing mill is respectively equipped with lifting lifting lug and lifting on screw lining board Hole.
The variable-pitch auger blender of the vertical mixing mill, spiral supporting plate are pressed by uniform thickness high intensity flaw detection steel plate Type, screw lining board are rich chromium cast iron.
By adopting the above-described technical solution, the present invention has following beneficial effects:
1. the present invention using lower part screw pitch it is big, the small variable-pitch auger blender of top screw pitch, form lower part abrasive media and The helix angle of material is larger, and abrasive media and the vertical promotion speed of material are larger, more suitable for grinding compared with coarse fraction material, on The helix angle of portion's abrasive media and material is small, and the promotion speed of abrasive media and material is smaller, the vertical partial pressure being subject to compared with Greatly, severity of grind becomes larger compared with conventional helical blender, more suitable for grinding compared with fine particle stage material, for material in vertical mixing mill The actual conditions of grade layering take respective suitable screw pitch, improve grinding efficiency.
2. the upper and lower surfaces screw pitch of top screw lining board of the present invention and middle spiral liner plate keeps equal, middle part spiral shell The screw pitch of rotation liner plate becomes larger, and the following table face pitch of lower part helical liner plate is identical with the screw pitch of middle spiral liner plate, lower part helical lining The upper surface of plate is designed using more screw pitch structures, and serious wear position special upset processing, every kind of liner plate is all made of modularization point Block casting is made, and upper, middle and lower screw lining board successively thickeies from top to bottom, and it is big to efficiently solve spiral agitator lower part severity of grind, spiral shell The fast problem of wear liner is revolved, upper and lower screw lining board service life is consistent, improves the service life of screw lining board, subtract Lack time and period that grinding machine shuts down replacement screw lining board, improves the running rate of equipment.
Detailed description of the invention
Fig. 1 is assembling structure schematic diagram of the present invention;
Fig. 2 is helical axis supporting plate welding structure schematic diagram of the invention;
Fig. 3 is upper screw lining board 2-1 structural schematic diagram of the invention;
Fig. 4 is middle screw lining board 2-2 structural schematic diagram of the invention;
Fig. 5 is lower screw lining board 2-3 structural schematic diagram of the invention;
In figure:1, helical axis;2-1, upper screw lining board;2-2, middle screw lining board;2-3, lower screw lining board;3, bolt fastener; 4, anticorrosion antiwear rubber;5-1, upper spiral supporting plate;5-2, lower spiral supporting plate.
Specific embodiment
By the following examples can the detailed explanation present invention, the open purpose of the present invention is intended to protect model of the present invention Enclose all interior technological improvements.
A kind of variable-pitch auger blender of vertical mixing mill in conjunction with described in attached drawing 1-5, including helical axis 1, in spiral The periphery of axis 1 is equipped with two spiral spiral supporting plates, and two spiral supporting plates are symmetrical, two spiral supporting plate screw pitch Change from small to big from top to bottom, is equipped with and the consistent screw lining board of its screw pitch, the width of screw lining board on the spiral supporting plate Greater than spiral supporting plate, two spiral supporting plates respectively by several upper spiral supporting plate 5-1 and lower spiral supporting plate 5-2 butt welding at, on The screw pitch of spiral supporting plate 5-1 is less than the screw pitch of lower spiral supporting plate 5-2, and screw lining board includes upper screw lining board 2-1, middle screw lining board 2-2, lower screw lining board 2-3, upper screw lining board 2-1 are fixed on spiral supporting plate 5-1, middle screw lining board 2-2 and lower spiral lining Plate 2-3 is fixed on lower spiral supporting plate 5-2, and the screw pitch of upper screw lining board 2-1 is identical as upper spiral supporting plate 5-1 screw pitch, middle spiral The screw pitch of liner plate 2-2 and lower screw lining board 2-3 are identical as lower spiral supporting plate 5-2 screw pitch, lead between screw lining board and spiral supporting plate Bolt fastener 3 is crossed to fix conjunction.
The variable-pitch auger blender of the vertical mixing mill, 1 one end of helical axis are equipped with connecting flange, pass through connecting flange With the transmission axis connection of Ball-stirring mill, torque and axial load are transmitted, is welded with variable-pitch auger supporting plate, spiral support on helical axis 1 Plate screw pitch is changed from small to big from top to bottom, forms that spiral agitator lower part helical lift angle is larger, and top helix angle is smaller, is suitble to Size fractionated material, blender lower part abrasive media and the vertical promotion speed of material are larger, more suitable for grinding compared with coarse fraction object The helix angle of material, top abrasive media and material is small, and the promotion speed of abrasive media and material is smaller, the vertical partial pressure being subject to Power is larger, and severity of grind becomes larger compared with conventional helical blender, more suitable for grinding compared with fine particle stage material, in vertical mixing mill The actual conditions of material grade layering take respective suitable screw pitch, improve grinding efficiency.
The variable-pitch auger blender of the vertical mixing mill, upper screw lining board 2-1 and middle screw lining board 2-2's is upper and lower Surface screw pitch keeps equal, and the following table face pitch of lower screw lining board 2-3 is identical as the screw pitch of middle screw lining board 2-2, lower spiral lining The upper surface of plate 2-3 is designed using more screw pitch structures, upper screw lining board 2-1, middle screw lining board 2-2, lower screw lining board 2-3 liner plate Thickness successively thickeies from top to bottom, efficiently solve due to the lateral pressure of abrasive media in vertical mixing mill and material on to Under successively become larger, severity of grind successively becomes larger, and causes lower part helical wear liner fast, and top screw lining board wears slow problem, So that the upper, middle and lower screw lining board service life is consistent, reduce time and period that grinding machine shuts down replacement screw lining board;Spiral In addition to totally 4 pieces of middle screw lining board 2-2 and lower screw lining board 2-3 in blender, remaining is upper screw lining board 2-1, structure size It is identical, modular cast is taken, casting difficulty is reduced, while reducing the spare part quantity of user, screw lining board 2-3 is using more Screw pitch structure design, serious wear position special upset processing, improves service life.
The variable-pitch auger blender of the vertical mixing mill, is equipped with several bolts hole, spiral lining on spiral supporting plate Conjunction is fixed by gib-headed bolt between plate and spiral supporting plate.
The variable-pitch auger blender of the vertical mixing mill is all provided in the periphery of helical axis 1 and spiral supporting plate surface Have a protective layer, the protective layer is wear-and corrosion-resistant rubber 4, helical axis 1 and spiral supporting plate it is welded after, in surface both entirety Vulcanize one layer of wear-and corrosion-resistant rubber, forms protective layer, achieve the purpose that anticorrosion antiwear, to protect helical axis 1 and spiral supporting plate, root According to service condition, Bonded Repair can be carried out to wear-and corrosion-resistant rubber 4.
The variable-pitch auger blender of the vertical mixing mill is respectively equipped with lifting on the screw lining board of upper, middle and lower and hangs Ear and lifting eye.
The variable-pitch auger blender of the vertical mixing mill, spiral supporting plate are pressed by uniform thickness high intensity flaw detection steel plate Type, screw lining board are rich chromium cast iron.
Working principle of the present invention:
Variable-pitch auger blender of the invention is installed in vertical mixing grinding cylinder, main motor drives spiral to stir by transmission shaft Device rotation is mixed, whole energy are acted on into abrasive media and material using spiral agitator, in the outer edge and spiral shell of screw lining board Abrasive media and material between spin axis 1 do axial spiral movement in cylinder, in the outer edge and cylinder of screw lining board Lower throwings of spinning in annular region of abrasive media and material between internal wall moves, meanwhile, abrasive media and material are in cylinder It moves in a circle in vivo, gravity, extruding of the material during doing axial circulation movement and circular motion, by abrasive media Itself centrifugal force of power, shearing force and material, the frictional force between material and abrasive media, in the synthesis of above-mentioned Various Complex power Under effect, effective ore grinding is realized.
Material in vertical mixing grinding cylinder is due to being affected by gravity, the automatic generating layered phenomenon of meeting, coarse fraction For material sinking to cylinder lower part, fine particle stage material can rest on cylinder top, during grinding, spiral agitator lower part spiral shell Away from larger, helix angle is big, and abrasive media and the vertical promotion speed of material are larger, more conducively the spiral fortune of coarse fraction material It is dynamic, it is suitable for grinding compared with coarse fraction material, coarse fraction material is brought to spiral agitator top, spiral after tentatively grinding Blender top screw pitch is smaller, and helix angle is small, and the promotion speed of material and abrasive media is smaller, the vertical partial pressure being subject to compared with Greatly, ore grinding intensity is opposite enhances, and is suitable for grinding compared with fine particle stage material, the spiral agitator of varying pitch is directed to the object of size fractionated Material takes respective suitable screw pitch, reduced grinding phenomenon, and improved grinding efficiency.
Part not in the detailed description of the invention is the prior art.
The embodiment selected herein for the open purpose of the present invention, is presently considered to be suitable, still, Ying Liao Solution, the present invention is intended to include all changes and improvement that all belong to the embodiment in this design and invention scope.

Claims (8)

1. a kind of variable-pitch auger blender of vertical mixing mill, including helical axis(1), in helical axis(1)Periphery on set There are two spiral spiral supporting plates, two spiral supporting plates are symmetrical, it is characterised in that:Two spiral supporting plate screw pitch from Top to bottm is changed from small to big, and is equipped on two spiral supporting plates and the consistent screw lining board of its screw pitch, the width of screw lining board Degree is greater than the width of spiral supporting plate, and two spiral supporting plates are by several upper spiral supporting plates(5-1)With lower spiral supporting plate(5-2)Docking It is welded into, upper spiral supporting plate(5-1)Screw pitch be less than lower spiral supporting plate(5-2)Screw pitch, screw lining board includes upper screw lining board (2-1), middle screw lining board(2-2), lower screw lining board(2-3), upper screw lining board(2-1)It is fixed on spiral supporting plate(5-1)On, Middle screw lining board(2-2)With lower screw lining board(2-3)It is fixed on lower spiral supporting plate(5-2)On, upper screw lining board(2-1)Screw pitch With upper spiral supporting plate(5-1)Screw pitch is identical, middle screw lining board(2-2)With lower screw lining board(2-3)Screw pitch and lower spiral supporting plate (5-2)Screw pitch is identical, is fastened by bolts part between screw lining board and spiral supporting plate(3)It is fixed closing.
2. a kind of variable-pitch auger blender of vertical mixing mill according to claim 1, it is characterised in that:Upper spiral lining Plate(2-1)With middle screw lining board(2-2)Upper and lower surfaces screw pitch keep equal, lower screw lining board(2-3)Following table face pitch with Middle screw lining board(2-2)Screw pitch it is identical, lower screw lining board(2-3)Upper surface using more screw pitch structures design.
3. a kind of variable-pitch auger blender of vertical mixing mill according to claim 1, it is characterised in that:Upper spiral lining Plate(2-1), middle screw lining board(2-2), lower screw lining board(2-3)Liner plate thickness successively thicken from top to bottom.
4. a kind of variable-pitch auger blender of vertical mixing mill according to claim 1, it is characterised in that:Helical axis (1)Upper end is equipped with connecting flange, helical axis(1)Pass through the transmission axis connection of connecting flange and Ball-stirring mill.
5. a kind of variable-pitch auger blender of vertical mixing mill according to claim 1, it is characterised in that:In spiral support It is equipped with several bolts hole on plate, conjunction is fixed by gib-headed bolt between screw lining board and spiral supporting plate.
6. a kind of variable-pitch auger blender of vertical mixing mill according to claim 1, it is characterised in that:In helical axis (1)Periphery and spiral supporting plate surface be equipped with protective layer, the protective layer is wear-and corrosion-resistant rubber(4).
7. a kind of variable-pitch auger blender of vertical mixing mill according to claim 1, it is characterised in that:In spiral lining Lifting lifting lug and lifting eye are respectively equipped on plate.
8. a kind of variable-pitch auger blender of vertical mixing mill according to claim 1, it is characterised in that:Spiral supporting plate By uniform thickness high intensity flaw detection steel plate compression moulding, screw lining board is rich chromium cast iron.
CN201810899674.8A 2018-08-09 2018-08-09 A kind of variable-pitch auger blender of vertical mixing mill Pending CN108816395A (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1694212A1 (en) * 1989-12-22 1991-11-30 Коммунарский горно-металлургический институт Pebble mill
US20100102151A1 (en) * 2007-02-02 2010-04-29 Maschinenfabrik Gustav Eirich Gmbh & Co. Kg Method for a continuous dry milling operation of a vertical grinding mill and vertical grinding mill
CN203304026U (en) * 2013-05-08 2013-11-27 昆明理工大学 Spiral stirrer of tower type grinder
CN103721800A (en) * 2014-01-10 2014-04-16 中信重工机械股份有限公司 Spiral stirrer of vertical type spiral stirring grind
CN106902931A (en) * 2017-03-16 2017-06-30 耿志杰 A kind of tower vertical mill of two-chamber
JP2018058052A (en) * 2016-10-07 2018-04-12 住友金属鉱山株式会社 Wet type vertical mill and lining method of the same
CN209076811U (en) * 2018-08-09 2019-07-09 洛阳矿山机械工程设计研究院有限责任公司 A kind of variable-pitch auger blender of vertical mixing mill

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1694212A1 (en) * 1989-12-22 1991-11-30 Коммунарский горно-металлургический институт Pebble mill
US20100102151A1 (en) * 2007-02-02 2010-04-29 Maschinenfabrik Gustav Eirich Gmbh & Co. Kg Method for a continuous dry milling operation of a vertical grinding mill and vertical grinding mill
CN203304026U (en) * 2013-05-08 2013-11-27 昆明理工大学 Spiral stirrer of tower type grinder
CN103721800A (en) * 2014-01-10 2014-04-16 中信重工机械股份有限公司 Spiral stirrer of vertical type spiral stirring grind
JP2018058052A (en) * 2016-10-07 2018-04-12 住友金属鉱山株式会社 Wet type vertical mill and lining method of the same
CN106902931A (en) * 2017-03-16 2017-06-30 耿志杰 A kind of tower vertical mill of two-chamber
CN209076811U (en) * 2018-08-09 2019-07-09 洛阳矿山机械工程设计研究院有限责任公司 A kind of variable-pitch auger blender of vertical mixing mill

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