CN105964343B - A kind of hot air circulation powder selection device of the adjustable back-blowing sealing of wind speed - Google Patents

A kind of hot air circulation powder selection device of the adjustable back-blowing sealing of wind speed Download PDF

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Publication number
CN105964343B
CN105964343B CN201610529308.4A CN201610529308A CN105964343B CN 105964343 B CN105964343 B CN 105964343B CN 201610529308 A CN201610529308 A CN 201610529308A CN 105964343 B CN105964343 B CN 105964343B
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CN
China
Prior art keywords
roller mill
clamping rings
mill
rotation
cage
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CN201610529308.4A
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CN105964343A (en
Inventor
谢雄
许丽娟
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HUZHOU FENGSHENG NEW MATERIAL Co Ltd
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HUZHOU FENGSHENG NEW MATERIAL Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C15/00Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
    • B02C15/007Mills with rollers pressed against a rotary horizontal disc
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C15/00Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
    • B02C15/001Air flow directing means positioned on the periphery of the horizontally rotating milling surface
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C21/00Disintegrating plant with or without drying of the material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00Auxiliary 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
    • B02C23/18Adding fluid, other than for crushing or disintegrating by fluid energy
    • B02C23/24Passing gas through crushing or disintegrating zone
    • B02C23/34Passing gas through crushing or disintegrating zone gas being recirculated to crushing or disintegrating zone
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C15/00Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
    • B02C2015/002Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs combined with a classifier

Abstract

The invention discloses a kind of hot air circulation powder selection devices of the adjustable back-blowing sealing of wind speed, include the back-blowing sealing structure of the wind-speed adjusting device of roller mill air inlet, hot air circulation powder selection device and powder selection device.The present invention improves the utilization rate of thermal energy, is suitable for the different material of roller mill different thicknesses degree, and the sealing effect of powder selection device is good, and does not interfere with the rotation of rotation cage completely.

Description

A kind of hot air circulation powder selection device of the adjustable back-blowing sealing of wind speed
Technical field
The present invention relates to a kind of hot air circulation powder selection devices of the adjustable back-blowing sealing of wind speed.
Background technology
Vertical roll grinder abbreviation Vertical Mill, one kind have for cement slurry, clinker, slag and the processing of cinder grinding Feature simple in structure, manufacturing cost and use cost is low.Including body, millstone device and transmission device, body and millstone device it Between be provided with the adjective-centre structure of the determining centre of gyration, the bottom of millstone device is fixedly installed circular guideway, and millstone device passes through Circular guideway is rotatable to be supported on body, and millstone device is connect with drive.Since transmission device is not subject to mill Weight and the high axial load such as pressure of milling, therefore general speed reducer can be used in transmission device, to tight with structure configuration Gather, reliable operation the advantages of, can shorten and stop consuming time, reduce the operation and maintenance cost of equipment.
Vertical roll grinder operation principle:Motor by speed reducer band movable grinding disc rotate, material through lock feeding device from into Material mouth is fallen in mill center, while hot wind enters from air inlet in mill.As mill rotates, material under the action of the centrifugal force, to Mill edge moves, and is crushed by being rolled by grinding roller when annular groove on mill, crushing rear material is at mill edge by vane High-speed flow takes up, and bulky grain falls directly on mill grinding again, when material passes through Upper separator in air-flow, turns in rotation Under son effect, coarse powder falls on mill grinding again from cone bucket, and qualified fine powder goes out mill with air-flow, collected by dust arrester installation, As product is oven-dried containing moisture material with thermal current contact process, by adjusting hot blast temperature, can meet DIFFERENT WET Material requirement is spent, required product moisture is reached.By adjusting separator, fineness degree needed for different product can reach.
Roller mill needs after carrying out material grinding in heat blow to powder selection device, and the not jljl of different fineness degrees Material, needs different size of hot wind to blow process to complete this, if wind-force is excessive, can be blown into some thicker unqualified materials In powder selection device, if wind-force is too small, qualified material can not be blown into powder selection device.
Simultaneously as there is certain gap, object always in the rotation cage top outer of powder selection device and the inner wall of roller mill Material can enter hot-blast outlet under the drive of hot wind by the gap, select powder step to avoid rotation cage, and then can shadow Ring the quality for selecting powder.
After roller mill grinds material, obtained product needs to be absorbed by dust-precipitator, after dust-precipitator absorbs, by roller There is larger heat in the hot wind being discharged in grinding machine, if the heat is directly discharged in air, not only wastes a part of heat Can, while air can be also polluted, discharge for a long time influences the environment on periphery.
Invention content
In view of the above-mentioned problems, the present invention provides a kind of hot air circulation powder selection device of the adjustable back-blowing sealing of wind speed, The wind speed for adjusting air inlet at any time according to the different product of different thicknesses degree selects powder to be more effectively blown into qualified material In device, by the way that back-blowing structure is arranged on the gap of rotation cage and roller mill inner wall, to prevent material straight by the gap It taps into and discharges into hot-blast outlet, effectively increase rotation cage selects silty amount, by being carried out to the hot wind after dust-precipitator gathers dust It recycles, to improve heat utilization rate, prevents thermal energy from being had adverse effect on to environment, by oil pressure in oil hydraulic cylinder It adjusts to realize the adjusting of pressure between grinding roller and mill, solves a bench roller grinding machine and be merely able to the serial material of one, powder Problem, it is simple in structure, it is at low cost, using being convenient to.
The technical solution adopted by the present invention is:
A kind of hot air circulation powder selection device of the adjustable back-blowing sealing of wind speed, including what is be arranged in roller mill select powder to fill It sets, hot blast pipe of the roller mill bottom on the outside of mill, the hot-blast outlet at the top of roller mill above powder selection device, the hot wind Outlet is connected with a dust-precipitator, and the gas outlet of the dust-precipitator is connected by pipeline with hot blast pipe, the dust-precipitator and hot wind There are one the wind turbine that hot wind is blowed to hot blast pipe from dust-precipitator, the powder selection device includes rotation cage for setting between pipe, and The diameter of the inner cone coaxial with rotation cage below fixed rotation cage, the thicker one end of the inner cone is more than the straight of rotation cage Diameter, and the thicker one end of inner cone upward, thinner one end downward, the rotary shaft of the rotation cage is in the vertical direction, described Roller mill is fixed with a circle blower in the interstitial site between the top outer and the inner wall of roller mill of rotation cage, described to blow The blowing mouth down of air hose, the air inlet of the blower are connected with an air pump, in roller mill mill and roller mill inner wall it Between be provided with a circle clamping rings, the hot blast pipe of the roller mill is located at the lower section of clamping rings, the outside of the clamping rings The inner wall of cambered surface and roller mill fits fixation, between the inside cambered surface of the clamping rings and the outside cambered surface of mill there are Gap offers multiple circumferentially uniformly distributed ventilation openings on the clamping rings, is fixed on the ventilation opening and justifies with fixed The adjustable plate of ring rotation connection.
After dust-precipitator gathers dust, hot wind is transferred to hot blast pipe by wind turbine and is recycled again, so as to improve The utilization rate of thermal energy, while can prevent its direct emission from influencing surrounding enviroment, by between mill and the inner wall of roller mill Setting clamping rings and adjustable plate, to adapt to the different material of different thicknesses degree, pass through band to adjust the wind speed in roller mill There is the blower of blowing mouth to be sealed so that the material below powder selection device can not be between rotation cage and roller mill inner wall Gap passes through, and not only sealing effect is good for such sealing means, but also does not interfere with the rotation of rotation cage completely.
Preferably, ventilation opening body in a ring, the radian of the annular solid is 10-100 °, the adjustable plate Shape matches with ventilation opening, and the adjustable plate is radially fixed with a shaft clamping rings, on the clamping rings A pair of shaft hole to match with shaft is offered, the blowing mouth is the circle blowing eye for being distributed on blowing bottom of the tube, institute The diameter of blowing eye is stated no more than the spacing between rotation cage top outer and roller mill inner wall.
By the ventilation opening and adjustable plate of body in a ring, clamping rings can be maximally utilised so that ventilation opening Draught area maximizes, and uniformly distributed blowing eye uniform blow gas can be sealed downwards, improve the stability of sealing, reach To the purpose at no dead angle.
Preferably, the rotation cage includes upper ring and a lower ring, and support connects multiple supports of upper ring and lower ring Bar, it is described rotation cage middle part be up and down, the inner cone be grade wall thickness hollow round table, the hollow round table it is upper The bottom of lower perforation, the inner cone is fixedly and coaxially connected there are one torus up and down, and the ventilation opening is interior to be adjusted One end of section plate is fixed with a bar, the bar clamping rings radially, the minimum point of the bar is less than shaft Peak, the clamping rings offer multiple pin holes above shaft, and the pin hole matches with a bolt.
For material after grinding, qualified product is blown to the cambered surface of rotation cage by hot wind along the outer wall of inner cone Outside, when rotating cage rotation, gap of the product across supporting rod is upwardly into hot-blast outlet, and enters in dust-precipitator, leads to The rotating speed for crossing control rotation cage, can select the product of different thicknesses degree, and rotating speed is faster, and the product of selection is thinner, and rotating speed is slower, The product of selection is thicker, and the design of bar so that adjustable plate is not parallel with clamping rings in heeling condition always, in this way in heat When wind is come in, by wind-force, the adjusting plate part below bar is directed away from the direction rotation of bar automatically, meanwhile, in bolt Blocking under, adjustable plate is fixed on certain position, so that ventilation opening is in certain openings of sizes, rotation cage is revolving When turning, the material of suitable size enters rotation cage by the gap between supporting rod, and is blown to hot-blast outlet, some of thick Effect of the underproof material of fineness due to its own gravity.It falls into inner cone below rotation cage, and is fallen by torus It falls and continues grinding.
Preferably, the bolt includes latch body, and is fixed on the compressed spring of latch body one end, it is described One end of compressed spring is fixedly connected with latch body, the end that other end direction is close with latch body, the bolt sheet The length of body is less than the diametrical length of clamping rings, is more than the diametrical length of ventilation opening, and the blower is located at The inner wall of the top of upper ring, the blower and roller mill is fixed together, and the outer diameter of the blower is more than upper ring and roller Spacing between grinding machine inner wall, there are one the rotation cage motors of driving rotation cage rotation for the top fixed installation of the roller mill.
Bolt uses the structure of latch body and compressed spring so that and bolt can be installed in the middle part of ventilation opening, To adapt to be mounted in roller mill, blowing pipe outside diameter is more than the spacing between upper ring and roller mill inner wall, to ensure blower Gap between top outer and the inner wall of roller mill that can be to rotating cage is fully sealed, to lift-off seal effect.
Advantageous effect of the present invention has:
After dust-precipitator gathers dust, hot wind is transferred to hot blast pipe by wind turbine and is recycled again, so as to improve The utilization rate of thermal energy, while can prevent its direct emission from influencing surrounding enviroment, by between mill and the inner wall of roller mill Setting clamping rings and adjustable plate, to adapt to the different material of different thicknesses degree, pass through band to adjust the wind speed in roller mill There is the blower of blowing mouth to be sealed so that the material below powder selection device can not be between rotation cage and roller mill inner wall Gap passes through, and not only sealing effect is good for such sealing means, but also does not interfere with the rotation of rotation cage completely.
Description of the drawings
Fig. 1 is the structural diagram of the present invention;
Fig. 2 is the side structure schematic diagram of Fig. 1;
Fig. 3 is the structural schematic diagram of clamping rings;
In figure:1. roller mill, 2. mills, 3. hot blast pipes, 4. hot-blast outlets, 5. rotation cages, 6. inner cones, 7. blowers, 8. clamping rings, 9. ventilation openings, 10. adjustable plates, 11. grinding rollers, 12. cranks, 13. oil hydraulic cylinders, 14. knock-pins, 15. oil inlet pipes Road, 16. nitrogen pipelines, 17. elevated pressure nitrogen air bag groups, 18. low pressure nitrogen air bag groups, 19. low pressure oil inlet valves, 20. high pressure inlet valves Door, 21. nitrogen valves, 22. shafts, ring on 23., 24. times rings, 25. supporting rods, 26. torus, 28. pin holes, 29. bolts Ontology, 30. compressed springs, 31. rotation cage motors.
Specific implementation mode
It is described in further detail below by specific embodiment and in conjunction with attached drawing to the present invention.
Embodiment 1
As shown in Figure 1, 2, 3, the hot air circulation powder selection device of the adjustable back-blowing sealing of a kind of wind speed, including be arranged in roller Powder selection device in grinding machine 1,1 bottom of roller mill is in the hot blast pipe 3 in 2 outside of mill, and 1 top of roller mill is above powder selection device Hot-blast outlet 4, the hot-blast outlet 4 are connected with a dust-precipitator, and the gas outlet of the dust-precipitator passes through pipeline and 3 phase of hot blast pipe Even, there are one the wind turbine that hot wind is blowed to hot blast pipe from dust-precipitator, the choosings for setting between the dust-precipitator and hot blast pipe 3 Powder device includes rotating inner cone 6 coaxial with rotation cage 5 below cage 5 and fixed rotation cage 5, and the inner cone 6 is relatively thick The diameter of one end be more than the diameter of rotation cage 5, and the thicker one end of inner cone 6 upward, thinner one end downward, the rotation The rotary shaft of cage 5 in the vertical direction, the roller mill 1 rotation cage 5 top outer and the inner wall of roller mill 1 between A circle blower 7, the blowing mouth down of the blower 7, the air inlet of the blower 7 and an air pump are fixed on gap position It is connected, a circle clamping rings 8, the hot blast pipe of the roller mill 1 is provided between 1 inner wall of mill 2 and roller mill in roller mill 1 3 are located at the lower section of clamping rings 8, and the outside cambered surface of the clamping rings 8 and the inner wall of roller mill 1 fit fixation, described solid Determine between the inside cambered surface of annulus 8 and the outside cambered surface of mill 2 there are gap, is offered on the clamping rings 8 and multiple be in The ventilation opening 9 of circumference uniform distribution is fixed with the adjustable plate 10 being rotatablely connected with clamping rings 8 on the ventilation opening 9.
The radian of the ventilation opening 9 body in a ring, the annular solid is 10-100 °, the shape of the adjustable plate 10 with Ventilation opening matches, and the adjustable plate 10 is radially fixed with a shaft 22 clamping rings 8, on the clamping rings 8 A pair of shaft hole to match with shaft 22 is offered, the blowing mouth is the circle blowing eye for being distributed on 7 bottom of blower, The diameter of the blowing eye is no more than the spacing between rotation 5 top outer of cage and 1 inner wall of roller mill.
The rotation cage 5 includes upper ring 23 and lower ring 24, and multiple supports of support connection upper ring 23 and lower ring 24 The middle part of bar 25, the rotation cage 5 is that up and down, the inner cone 6 is the hollow round table for waiting wall thickness, the hollow round table Up and down, the bottom of the inner cone 6 is fixedly and coaxially connected the torus 26 there are one up and down, the ventilation opening Be fixed with a bar in one end of adjustable plate 10 in 9, the bar clamping rings 8 radially, the minimum point of the bar Less than the peak of shaft 22, the clamping rings 8 offers multiple pin holes 28, the pin hole in the top of shaft 22 28 match with a bolt.
The bolt includes latch body 29, and is fixed on the compressed spring 30 of 29 one end of latch body, the pressure One end of contracting spring 30 is fixedly connected with latch body 29, and the other end is described to insert towards the end being close with latch body 29 The length for selling ontology 29 is less than 8 diametrical length of clamping rings, is more than 9 diametrical length of ventilation opening, and described blows Air hose 7 is located at the top of upper ring 23, and the blower 7 and the inner wall of roller mill 1 are fixed together, outside the blower 7 Diameter is more than the spacing between 1 inner wall of upper ring 23 and roller mill, and there are one driving rotation cages for the top fixed installation of the roller mill 1 The rotation cage motor 31 of 5 rotations.
Embodiment 2
As shown in Figure 1, 2, 3, a kind of adjustable hot air circulation roll mill apparatus of grinding roller pressure of back-blowing sealing, feature It is, including the powder selection device being arranged in roller mill 1,1 bottom of roller mill is on the hot blast pipe 3 in 2 outside of mill, the top of roller mill 1 Hot-blast outlet 4 of the portion above powder selection device, the hot-blast outlet 4 are connected with a dust-precipitator, the gas outlet of the dust-precipitator It is connected with hot blast pipe 3 by pipeline, there are one hot wind is blowed to heat from dust-precipitator for setting between the dust-precipitator and hot blast pipe 3 The wind turbine of air hose 3, the powder selection device include rotation cage 5 and fixed rotation cage 5 lower section and rotate coaxial interior of cage 5 Cone 6, the diameter of the thicker one end of the inner cone 6 are more than the diameter of rotation cage 5, and the thicker one end of inner cone 6 upward, compared with Thin one end downward, it is described rotation cage 5 rotary shaft in the vertical direction, the roller mill 1 rotation cage 5 top outer with A circle blower 7 is fixed in interstitial site between the inner wall of roller mill 1, the blowing mouth down of the blower 7 is described to blow The air inlet of air hose 7 is connected with an air pump, and a circle clamping rings is provided between 1 inner wall of mill 2 and roller mill in roller mill 1 8, the hot blast pipe 4 of the roller mill 1 is located at the lower section of clamping rings 8, outside cambered surface and the roller mill 1 of the clamping rings 8 Inner wall fits fixation, and there are gaps between the inside cambered surface of the clamping rings 8 and the outside cambered surface of mill 2, and described consolidates Determine to offer multiple circumferentially uniformly distributed ventilation openings 9 on annulus 8, is fixed on the ventilation opening 9 and the rotation of clamping rings 8 connects The adjustable plate 10 connect;Further include the crank 12 of 11 rotation of grinding roller 11 and driving grinding roller, the crank 12 is relative to grinding The other end of roller 11 is connected with the knock-pin 14 of 13 front end of an oil hydraulic cylinder, and the oil hydraulic cylinder 13 is divided by two inflow pipelines 15 It is not connected with the gas outlet of two groups of nitrogen capsules, the gas outlet of two groups of nitrogen capsules is connected by nitrogen pipeline 16, described Two groups of nitrogen capsules be the different elevated pressure nitrogen air bag group 17 and low pressure nitrogen air bag group 18 of pressure, it is described with 17 phase of elevated pressure nitrogen air bag group There are one high pressure oil inlet valve 20, the oil inlet pipes being connected with low pressure nitrogen air bag group 18 for series connection on the inflow pipeline 15 of connection There are one low pressure oil inlet valves 19 for series connection on road 15, and there are one nitrogen valves 21 for the nitrogen pipeline 16 series connection.
The radian of the ventilation opening 9 body in a ring, the annular solid is 10-100 °, the shape of the adjustable plate 10 with Ventilation opening 9 matches, and the adjustable plate 10 is radially fixed with a shaft 22 clamping rings 8, on the clamping rings 8 A pair of shaft hole to match with shaft 22 is offered, the blowing mouth is the circle blowing eye for being distributed on 7 bottom of blower, The diameter of the blowing eye is no more than the spacing between rotation 5 top outer of cage and 1 inner wall of roller mill, the elevated pressure nitrogen air bag Group 17 includes the elevated pressure nitrogen air bag that two gas outlets are connected, and the low pressure nitrogen air bag group 18 is connected including two gas outlets Low pressure nitrogen air bag.
The rotation cage 5 includes upper ring 23 and lower ring 24, and multiple supports of support connection upper ring 23 and lower ring 24 The middle part of bar 25, the rotation cage 5 is that up and down, the inner cone 6 is the hollow round table for waiting wall thickness, the hollow round table Up and down, the bottom of the inner cone 6 is fixedly and coaxially connected the torus 26 there are one up and down, the ventilation opening Be fixed with a bar in one end of adjustable plate 10 in 9, the bar clamping rings 8 radially, the minimum point of the bar Less than the peak of shaft 22, the clamping rings 8 offers multiple pin holes 28, the pin hole in the top of shaft 22 28 match with a bolt, and the gas outlet of the elevated pressure nitrogen air bag and low pressure nitrogen air bag is all downward.
The bolt includes latch body 29, and is fixed on the compressed spring 30 of 29 one end of latch body, the pressure One end of contracting spring 30 is fixedly connected with latch body 29, and the other end is described to insert towards the end being close with latch body 29 The length for selling ontology 29 is less than 8 diametrical length of clamping rings, is more than 9 diametrical length of ventilation opening, and described blows Air hose 7 is located at the top of upper ring 23, and the blower 7 and the inner wall of roller mill 1 are fixed together, outside the blower 7 Diameter is more than the spacing between 1 inner wall of upper ring 23 and roller mill, and there are one driving rotation cages for the top fixed installation of the roller mill 1 The rotation cage motor 31 of 5 rotations.

Claims (1)

1. a kind of hot air circulation powder selection device of the adjustable back-blowing sealing of wind speed, which is characterized in that including being arranged in roller mill (1) powder selection device in, hot blast pipe (3) of roller mill (1) bottom on the outside of mill (2), roller mill (1) top is in powder selection device The hot-blast outlet (4) of top, the hot-blast outlet (4) are connected with a dust-precipitator, and the gas outlet of the dust-precipitator passes through pipeline It is connected with hot blast pipe (3), there are one hot wind is blowed to hot blast pipe from dust-precipitator for setting between the dust-precipitator and hot blast pipe (3) Wind turbine, the powder selection device include below rotation cage (5) and fixed rotation cage (5) with rotate coaxial interior of cage (5) Cone (6), the diameter of the thicker one end of the inner cone (6) are more than the diameter of rotation cage (5), and inner cone (6) it is thicker one End upward, thinner one end downward, it is described rotation cage (5) rotary shaft in the vertical direction, the roller mill (1) rotation cage (5) a circle blower (7), the blower are fixed in the interstitial site between top outer and the inner wall of roller mill (1) (7) air inlet of blowing mouth down, the blower (7) is connected with an air pump, is ground in roller mill (1) interior mill (2) and roller A circle clamping rings (8) is provided between machine (1) inner wall, the hot blast pipe (3) of the roller mill (1) is located at clamping rings (8) Lower section, the outside cambered surface of the clamping rings (8) and the inner wall of roller mill (1) fit fixation, the clamping rings (8) it is interior There are gap between side cambered surface and the outside cambered surface of mill (2), offered on the clamping rings (8) multiple circumferentially uniformly distributed Ventilation opening (9), the adjustable plate (10) with clamping rings (8) rotation connection, the rotation are fixed on the ventilation opening (9) Rotating cage (5) includes upper ring (23) and lower ring (24), and supports multiple supporting rods (25) of connection upper ring (23) and lower ring (24), The middle part of the rotation cage (5) is that up and down, the inner cone (6) is the hollow round table for waiting wall thickness, the hollow round table Up and down, the bottom of the inner cone (6) is fixedly and coaxially connected there are one torus (26) up and down, and described is logical Be fixed with a bar in one end of adjustable plate (10) in air port (9), the bar clamping rings (8) radially, the gear The minimum point of bar is less than the peak of shaft (22), and the clamping rings (8) offers multiple bolts above shaft (22) Hole (28), the pin hole (28) match with a bolt, and the bolt includes latch body (29), and is fixed on slotting The compressed spring (30) of ontology (29) one end is sold, one end of the compressed spring (30) is fixedly connected with latch body (29), separately One end is less than clamping rings (8) in diameter towards the end being close with latch body (29), the length of the latch body (29) Upward length is more than ventilation opening (9) diametrical length, and the blower (7) is located at the top of upper ring (23), described Blower (7) and the inner wall of roller mill (1) be fixed together, the outer diameter of the blower (7) is more than upper ring (23) and is ground with roller Spacing between machine (1) inner wall, there are one the rotations that driving rotation cage (5) rotates for the top fixed installation of the roller mill (1) Cage motor (31).
CN201610529308.4A 2016-06-30 2016-06-30 A kind of hot air circulation powder selection device of the adjustable back-blowing sealing of wind speed Active CN105964343B (en)

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CN105964343B true CN105964343B (en) 2018-11-09

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CN100408190C (en) * 2005-12-22 2008-08-06 上海重型机器厂有限公司 Bowl-type medium speed coal mill
CN102430453B (en) * 2010-09-29 2014-03-26 莱歇研磨机械制造(上海)有限公司 Polygonal adjustable air ring for roll mill
CN203437155U (en) * 2013-07-29 2014-02-19 中材(天津)粉体技术装备有限公司 Wind speed adjusting device of vertical roller mill
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CN205948975U (en) * 2016-06-30 2017-02-15 湖州丰盛新材料有限公司 Heated air circulation selection powder device that wind speed adjustable anti -blow is sealed

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