CN102430453A - Polygonal adjustable air ring for roll mill - Google Patents

Polygonal adjustable air ring for roll mill Download PDF

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Publication number
CN102430453A
CN102430453A CN201010298691XA CN201010298691A CN102430453A CN 102430453 A CN102430453 A CN 102430453A CN 201010298691X A CN201010298691X A CN 201010298691XA CN 201010298691 A CN201010298691 A CN 201010298691A CN 102430453 A CN102430453 A CN 102430453A
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China
Prior art keywords
vane
blinds
ring
polygon
scalable
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Granted
Application number
CN201010298691XA
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Chinese (zh)
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CN102430453B (en
Inventor
胡泽武
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LOESCHE (SHANGHAI) CO Ltd
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LOESCHE (SHANGHAI) CO Ltd
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Priority to CN201010298691.XA priority Critical patent/CN102430453B/en
Publication of CN102430453A publication Critical patent/CN102430453A/en
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Abstract

The invention relates to a polygonal adjustable air ring for a roll mill. The polygonal adjustable air ring is arranged in an annular space formed between a mill shell and a milling disc, and comprises a lower shutter air ring and an upper guide ring, wherein the lower shutter air ring surrounds the milling disc and is welded with the mill shell; the lower shutter air ring is equally divided into 36-48 same parts; each part is an independent air outlet; the air outlet mainly comprises a lower shutter air ring outer panel and a pair of lower shutter air ring oblique guide plates; and the upper guide ring is arranged above the lower shutter air ring. Compared with the prior art, the air ring has the advantages of simple structure, convenience in mounting and replacement, capability of stably controlling and adjusting air speed and air direction in the roll mill and the like.

Description

A kind of polygon scalable vane that is used for ring-roller mill
Technical field
The present invention relates to a kind of polygon scalable vane, especially relate to a kind of polygon scalable vane that is used for ring-roller mill.
Background technology
Current, roller mill is used for the employed raw material of pulverizing cement industry, grog, raw coal in a large number, the slag of the employed raw coal of thermoelectric industry and steel plant's blast furnace etc.Grinding is the part process in the roller mill work with selecting powder, and the raw material that grinding is about to certain grain size grinds to form more tiny powdered granule, and the satisfactory finished product that selects powder to be about in the powdered granule after grinding is separated.In these two processes, hot blast gets into space and powder-separating area in the mill from the place that the milling zone peripheral side promptly is called vane, accomplishes the powder process of selecting by powder selection device after the powdered granule after grinding is risen to certain altitude.Hot blast all has significant effects through the wind speed and direction of vane to grinding and grinding efficiency.
There is the plurality of specifications roller mill different with structure in the current whole world, and the vane structure that comprises is all different.About document also discloses the structure and the characteristic of the vane that various roller mills are equipped with, but this type vane all can not better controlled with regulate wind speed and direction.The vane regulatory function that has is too simple, and the air quantity that causes grinding system to be equipped with is excessive and cause the waste of the energy, and grinding and grinding efficiency are not high; The vane structure that has is too heavy, makes and install all very inconvenience.
Summary of the invention
The object of the invention be exactly provide in order to overcome the defective that above-mentioned prior art exists a kind of simple in structure, install and change the polygon scalable vane that is used for ring-roller mill that wind speed and direction convenient, in can the pair roller type grinding machine carries out stable control and adjusting.
The object of the invention can be realized through following technical scheme: a kind of polygon scalable vane that is used for ring-roller mill; This polygon scalable vane is arranged in the annular space that forms between grinding machine shell and the mill, it is characterized in that, described polygon scalable vane comprises following blinds vane, goes up guide ring; Described blinds vane down is around mill; And with grinding machine shell welding, this time blinds vane is divided into 36~48 identical parts, each part is an independently air outlet; Described air outlet is mainly by blinds vane outer side panel and a pair of blinds vane oriented plate are down formed down; Described down blinds vane outer side panel is connected with grinding machine shell, and with the air outlet end face with 70 °~85 ° angle towards the mill axioversion, it is described that a pair of time blinds vane oriented plate is parallel is connected down on the blinds vane outer side panel; And tilt with 55 °~70 ° angle tide mill disc radial with the air outlet end face; The described guide ring of going up is looped around around the mill, and branch quantity such as branch quantity such as guide ring and following blinds vane are identical on this, and the part behind the branches such as the each several part of last guide ring five equilibrium and following blinds vane is connected through bolt one by one.
Described down blinds vane outer side panel is connected with grinding machine shell, and with the air outlet end face with 75 °~80 ° optimized angle towards the mill axioversion.
Blinds vane oriented plate is parallel under described is connected down on the blinds vane outer side panel, and tilts with the optimized angle tide mill disc radial of air outlet end face with 60 °~63 °.
This vane also comprises the insertion plate, and described insertion plate is arranged in a plurality of air outlets, and is connected with two following blinds oriented plates.
This vane also comprises cover plate, and described cover plate is arranged on the upper end of a plurality of air outlets, and air outlet is sealed.
Described cover plate is the polygon plane plate.
Described blinds vane down and last guide ring adopt high-abrasive material.
Described high-abrasive material is industrial build-up wear-resistant plate.
Compared with prior art, the present invention has the following advantages:
1, vane is simple in structure, makes easily, and pure rivet welding structure does not need machine tooling equipment to carry out processing and fabricating, and whole vane is divided into a plurality of identical parts, and is easy for installation, the time and labour saving.Install into the promptly approximate circular ring structure of a just polygon structure.
2, vane adjusting wind speed and direction is stable, does not receive grinding machine feeding capacity and grinding machine working stability whether to wait the restriction of situation, so just can better control the grinding of grinding machine and select the powder process.
3, change conveniently, because the annular space of vane between mill and grinding machine shell, it does not all have up and down and its miscellaneous part that is associated, and dismounting and change just easily fast, can not cause the long-time shutdown of equipment like this.
Description of drawings
Fig. 1 is the ring-roller mill structural representation;
Fig. 2 is a structural representation of the present invention;
Fig. 3 is the A-A view of Fig. 2;
Fig. 4 is that the B of Fig. 2 is to structural representation.
1 is that mill, 2 is that grinding machine shell, 3 is that polygon scalable vane, 4 is that rotor, 5 is that grinding roller, 6 is that reductor, 7 is that system's hot blast import, 8 is that product outlet, 9 is the raw material feeding mouth among Fig. 1;
Among Fig. 2 21 for following blinds vane, 22 for blinds vane oriented plate down, 23 for blinds vane outer side panel, 24 down be that last guide ring, 25 is a cover plate for inserting plate, 26;
10 is an independent air intake mouth of vane among Fig. 4.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is elaborated.
Embodiment
As shown in Figure 1; Raw material is gone into the entering of mill back by raw material feeding mouth 9 and is ground by the milling zone that mill 1 and grinding roller 5 form; Mill 1 is done the certain speed rotation by reductor 6 drives around the center; 1 space that an annular is arranged of mill of static grinding machine shell 2 and rotation, the hot blast that the system's hot blast import 7 bottom grinding machine gets into gets in the mill through this annular space.Polygon scalable vane 3 is installed in this annular space; And annular space is separated into a plurality of independently air inlets 10; Hot blast just gets into corresponding speed and direction through polygon scalable vane 3 and drives the rotor 4 that polished thin feed particles gets into powder selection device behind the grinding district and carry out separating of thickness particle like this, and finished product is derived grinding machines through product outlet 8.
A kind of polygon scalable vane that is used for ring-roller mill, it comprises:
All from blinds vane entering down, following blinds vane 21 is being controlled the wind direction that gets into hot blast in the mill for following blinds vane 21, all hot blasts; The hot blast wind direction has two, and one relevant with mill 1 edge direction of rotation, promptly radially; Another is just relevant with mill 1 rotary middle spindle, promptly axial.Following blinds vane 21 can control radial direction again can Control Shaft to.According to the size of grinding machine, following blinds vane 21 is divided into 40 identical parts, is convenient to like this make and install.Following blinds vane 21 is fixing through welding and grinding machine shell 2.
Last guide ring 24, hot blast drives material entering powder-separating area through continuing to rise along last guide ring 24 behind the blinds vane 21 down.Last guide ring 24 is installed in down on the blinds vane 21, plays a part the hot blast guiding.It is the same with following blinds vane 21, is divided into 40 identical parts, and its quantity that is divided into is consistent with the quantity that following blinds vane 21 is divided into, and fixes through bolt and following blinds vane 21.
Insert plate 25, be installed in down in the blinds vane 21, be used to regulate down the size of blinds vane 21 each outlet, so just can control the flowing velocity of hot blast in each outlet.According to the requirement of grinding, hot blast is different in the speed in whole vane district.It is fixing through welding with following blinds vane 21 to insert plate 25.
Cover plate 26, cover plate are polygon, originally are that embodiment adopts quadrangle, be installed in down blinds vane 21 outlet just above, according to the needs that grind, some place of vane can not let hot blast pass through, and should its air outlet be shut fully.Cover plate 26 is fixing through welding with following blinds vane 21.
The radially wind direction of following blinds vane 21 is regulated, and is employed in down 80 following blinds vane oriented plates 22 that distribute in blinds vane 21 piecemeals such as grade.Axially wind direction is regulated, and is employed in down blinds vane 21 piecemeals such as grade 40 following blinds outer side panels 23 are set.Following blinds vane 21 is space multistory structures.
The single aliquot of last guide ring 24 is planar structures, and it is installed the back and has a certain degree on same or with it with following blinds vane outer side panel 23, continues to play a part axial wind-guiding.Insert plate 25 and be not mounted in each following blinds vane 21, but reasonably arrange according to the position of abrasive areas.Inserting plate 25 is space multistory structures.Cover plate 26 is polygon plane plates, also is to carry out reasonable Arrangement according to the position of abrasive areas.Following blinds vane 21 will have anti-wear performance with last guide ring 24, it is caused directly washes away and produces wearing and tearing because hot blast can drive particle dress material.For this reason, on the manufacturing materials type selecting, can consider high-abrasive material,, can guarantee that like this it can continuous operation regular hour and cause shutdown without frequent change like industrial build-up wear-resistant plate.
Polygon scalable vane 3 is scattered in a plurality of independent air outlets with the annular space of 1 on grinding machine shell 2 and mill; Following blinds vane oriented plate 22 in each air outlet is angled with the air outlet end face; It is radial skew; After deliberation with practice; Angle 60 °~63 ° ideal, each air port can let form high-speed rotational wind and have certain upstroke slope from the hot blast that wherein passes through and form eddy flow like this, is thrown away by mill 1 rotary centrifugal force behind the raw material grinding and rotates in mill with this eddy flow wind; Thick material can get into feed system with fresh feed and gets in the mill grinding once more because of gravity each air port through polygon scalable vane 3 falls into behind the dreg removing system again, and wherein thin material rises to powder-separating area with swirling eddy and selected powder.The arc surface of mill 1 side is vertical, and grinding machine shell 2 also is vertical, and hot blast will be along certain angle deflection mill 1 pivot after through vane 3, and promptly axioversion so just better drives material and rises to the powder-separating area territory.Through will descend blinds vane outer side panel 23 near a side of grinding machine shell 2 and vane 3 import and export end faces also shape have a certain degree and can reach such effect, angle be generally be 75 °~80 ° the most desirable.Last guide ring 24 is positioned at down on the blinds vane outer side panel 23, and according to the grinding machine of different size, last guide ring 24 and following blinds vane outer side panel 23 are on same plane or have a certain degree.Last guide ring 24 continues to play the guide effect to the ascending air that passes through from following blinds vane 21 outlets, and promptly airflow direction selects powder along certain angle deflection mill 1 pivot with the rotary area that the drive material better gets into rotor 4.The size of the end face outlet area of following blinds vane 21 can be controlled the speed of hot blast, because the air quantity of grinding system is certain, the effective area that calculates the air port during design just is easy to control the speed of air outlet.The speed that hot blast drive granule materials rises is to grinding and select powder all can produce very big influence; Proper speed can let mill get into the operation of follow-up grinding with the fine granular materials on mill 1 rapidly; And the speed that gets into powder selection device rotor 4 rotary areas also can have influence on grinding efficiency, inserts the speed that plate 25 promptly is used to regulate each air outlet.Insert plate 25 and be installed between each following blinds vane oriented plate 22, just can control the size of each air outlet area through the installing and locating size that changes every insertion plate 25.Carry out grinding work because of roller mill leans on mill 1 and grinding roller 5, grind the kind of raw material and the size of grinding machine size according to grinding machine, the quantity of grinding roller is divided into 2,3, specifications such as 4,6.The mounting arrangements of inserting plate 25 is associated with each grinding roller 5.Insert the reasonable arrangement of wind speed that plate 25 can regulate vane 3 outlets around each grinding roller 5,, be beneficial to grinding and select powder with corresponding with the abrasive areas of grinding roller 5 on mill 1 with the speed that reaches whole annular vane outlet.Cover plate 26 be installed in down blinds vane 21 outlet just above, be about to some air outlet of vane and shut fully, the place of sealing does not allow hot blast to pass through from it, the installation site of cover plate 26 also is associated with grinding roller 5.Cover plate 26 desirable two effects; Because hot blast drive the powdered granule material at a high speed the rising meeting some position of grinding roller 5 is caused wash away and cause improper wearing and tearing, the correct position installation cover plate 26 of the vane 3 grinding roller 5 below just can avoid causing the wearing and tearing to grinding roller 5 parts such as grade.In addition, the installation of cover plate 26 also can influence the gross area of whole vane 3 outlets and play the effect of regulating wind speed.

Claims (8)

1. polygon scalable vane that is used for ring-roller mill, this polygon scalable vane is arranged in the annular space that forms between grinding machine shell and the mill, it is characterized in that; Described polygon scalable vane comprises following blinds vane, goes up guide ring; Described down blinds vane is around mill, and with the grinding machine shell welding, this time blinds vane is divided into 36~48 identical parts; Each part is an independently air outlet; Described air outlet mainly is made up of down blinds vane outer side panel and a pair of blinds vane oriented plate down, and the described blinds vane outer side panel that descends is connected with grinding machine shell, and with the air outlet end face with 70 °~85 ° angle towards the mill axioversion; It is described that a pair of down blinds vane oriented plate is parallel is connected down on the blinds vane outer side panel; And tilt with 55 °~70 ° angle tide mill disc radial with the air outlet end face, the described guide ring of going up is looped around around the mill, and is divided into a plurality of same sections; It is identical to go up branch quantity such as branch quantity such as guide ring and following blinds vane, and the part behind the branches such as the each several part of last guide ring five equilibrium and following blinds vane is connected through bolt one by one.
2. a kind of polygon scalable vane that is used for ring-roller mill according to claim 1 is characterized in that, described down blinds vane outer side panel is connected with grinding machine shell, and with the air outlet end face with 75 °~80 ° optimized angle towards the mill axioversion.
3. a kind of polygon scalable vane that is used for ring-roller mill according to claim 1; It is characterized in that; Blinds vane oriented plate is parallel under described is connected down on the blinds vane outer side panel, and tilts with the optimized angle tide mill disc radial of air outlet end face with 60 °~63 °.
4. a kind of polygon scalable vane that is used for ring-roller mill according to claim 1 is characterized in that this vane also comprises the insertion plate, and described insertion plate is arranged in a plurality of air outlets, and is connected with two following blinds oriented plates.
5. a kind of polygon scalable vane that is used for ring-roller mill according to claim 1 is characterized in that this vane also comprises cover plate, and described cover plate is arranged on the upper end of a plurality of air outlets, and air outlet is sealed.
6. a kind of polygon scalable vane that is used for ring-roller mill according to claim 5 is characterized in that described cover plate is the polygon plane plate.
7. a kind of polygon scalable vane that is used for ring-roller mill according to claim 1 is characterized in that, described blinds vane down and last guide ring adopt high-abrasive material.
8. a kind of polygon scalable vane that is used for ring-roller mill according to claim 6 is characterized in that described high-abrasive material is industrial build-up wear-resistant plate.
CN201010298691.XA 2010-09-29 2010-09-29 Polygonal adjustable air ring for roll mill Active CN102430453B (en)

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Application Number Priority Date Filing Date Title
CN201010298691.XA CN102430453B (en) 2010-09-29 2010-09-29 Polygonal adjustable air ring for roll mill

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Application Number Priority Date Filing Date Title
CN201010298691.XA CN102430453B (en) 2010-09-29 2010-09-29 Polygonal adjustable air ring for roll mill

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CN102430453A true CN102430453A (en) 2012-05-02
CN102430453B CN102430453B (en) 2014-03-26

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103203264A (en) * 2013-02-07 2013-07-17 洛阳矿山机械工程设计研究院有限责任公司 Airflow transportation method for vertical roller mill airflow device of cement raw material slag
CN105879975A (en) * 2016-06-24 2016-08-24 中材(天津)粉体技术装备有限公司 Vertical roller mill air guide ring device
CN105944821A (en) * 2016-06-30 2016-09-21 湖州丰盛新材料有限公司 Device for adjusting air speed of air inlet of roller mill
CN105964387A (en) * 2016-06-30 2016-09-28 湖州丰盛新材料有限公司 Reverse blow sealed hot wind circulating roller grinding device with adjustable pressure of grinding roller
CN105964343A (en) * 2016-06-30 2016-09-28 湖州丰盛新材料有限公司 Air speed adjustable and reverse blow sealed hot air circulating powder selecting device
CN106000549A (en) * 2016-06-30 2016-10-12 湖州丰盛新材料有限公司 Rolling device with adjustable wind speed and reverse air blowing seal structure
CN106000615A (en) * 2016-06-30 2016-10-12 湖州丰盛新材料有限公司 Hot air circulation powder selecting device with adjustable wind speed

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87216030U (en) * 1987-12-01 1988-10-12 曲靖地区机械厂 New-type vertical mill
CN1036341A (en) * 1988-12-29 1989-10-18 昆明工学院 The volume increase method of vertical grinder system
CN201002030Y (en) * 2007-02-03 2008-01-09 郑义 Thermo-power generating plant middle-speed grinding dynamic air ring
CN201040259Y (en) * 2007-05-09 2008-03-26 唐山冀东水泥股份有限公司 Adjustable vane for cement vertical mill
CN201534101U (en) * 2009-10-28 2010-07-28 石福军 Bowel-type medium speed coal mill
CN201807409U (en) * 2010-09-29 2011-04-27 莱歇研磨机械制造(上海)有限公司 Polygonal adjustable air ring for roller type mill

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87216030U (en) * 1987-12-01 1988-10-12 曲靖地区机械厂 New-type vertical mill
CN1036341A (en) * 1988-12-29 1989-10-18 昆明工学院 The volume increase method of vertical grinder system
CN201002030Y (en) * 2007-02-03 2008-01-09 郑义 Thermo-power generating plant middle-speed grinding dynamic air ring
CN201040259Y (en) * 2007-05-09 2008-03-26 唐山冀东水泥股份有限公司 Adjustable vane for cement vertical mill
CN201534101U (en) * 2009-10-28 2010-07-28 石福军 Bowel-type medium speed coal mill
CN201807409U (en) * 2010-09-29 2011-04-27 莱歇研磨机械制造(上海)有限公司 Polygonal adjustable air ring for roller type mill

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103203264A (en) * 2013-02-07 2013-07-17 洛阳矿山机械工程设计研究院有限责任公司 Airflow transportation method for vertical roller mill airflow device of cement raw material slag
CN105879975A (en) * 2016-06-24 2016-08-24 中材(天津)粉体技术装备有限公司 Vertical roller mill air guide ring device
CN105944821A (en) * 2016-06-30 2016-09-21 湖州丰盛新材料有限公司 Device for adjusting air speed of air inlet of roller mill
CN105964387A (en) * 2016-06-30 2016-09-28 湖州丰盛新材料有限公司 Reverse blow sealed hot wind circulating roller grinding device with adjustable pressure of grinding roller
CN105964343A (en) * 2016-06-30 2016-09-28 湖州丰盛新材料有限公司 Air speed adjustable and reverse blow sealed hot air circulating powder selecting device
CN106000549A (en) * 2016-06-30 2016-10-12 湖州丰盛新材料有限公司 Rolling device with adjustable wind speed and reverse air blowing seal structure
CN106000615A (en) * 2016-06-30 2016-10-12 湖州丰盛新材料有限公司 Hot air circulation powder selecting device with adjustable wind speed

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