CN1069909A - Multi-layer material collecting partition plate for cylindrical ball mill - Google Patents
Multi-layer material collecting partition plate for cylindrical ball mill Download PDFInfo
- Publication number
- CN1069909A CN1069909A CN 92102209 CN92102209A CN1069909A CN 1069909 A CN1069909 A CN 1069909A CN 92102209 CN92102209 CN 92102209 CN 92102209 A CN92102209 A CN 92102209A CN 1069909 A CN1069909 A CN 1069909A
- Authority
- CN
- China
- Prior art keywords
- dividing plate
- housing
- downstream
- plate
- upstream
- 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
Links
- 239000000463 material Substances 0.000 title claims abstract description 16
- 238000005192 partition Methods 0.000 title abstract 3
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 25
- 230000009977 dual effect Effects 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 4
- 230000014759 maintenance of location Effects 0.000 claims description 4
- 239000000725 suspension Substances 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000000227 grinding Methods 0.000 description 18
- 239000002245 particle Substances 0.000 description 15
- 238000003801 milling Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating 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
- B02C17/04—Disintegrating 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 unperforated container
- B02C17/06—Disintegrating 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 unperforated container with several compartments
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
Abstract
A double partition for a cylindrical ball mill is composed of circumferentially connected modules. Characterized in that the modules are material collection modules and that the modules are assembled in layers in radial stacks. By means of the double partition, it is possible to collect the small pieces at different levels in the radial direction of the ball mill and to feed all the small pieces coming from the upstream side of the collection module into the downstream chamber, thereby reducing the loss of material flow and the energy consumption of the ball mill.
Description
The present invention relates to a kind of dividing plate that is used for horizontal grinding mill.Horizontal grinding mill comprises a columniform sleeve, and this sleeve can rotate and accommodate the body of milling around its longitudinal axis.The body of milling can be spherical, bar shaped or cobble shape.Described dividing plate be set at sleeve transversely and be provided with the opening of certain size, make the particle of milling can be from opening by and the body of will milling blocks.
Hereinafter for for simplicity, use the various bodies of milling of " abrading-ball " speech representative, the body of milling freely is rotated in the inner chamber of tubular grinding mill, when rotating with convenient grinding mill, bump and surface action by the body of milling reduce by the granularity of the material of milling (for example clinker, pozzolana).
At FR.A.2, a kind of existing dividing plate is disclosed in 565,850.It relates to a kind of dual dividing plate.It comprises a grid upstream face and a flat disk downstream face that particle is passed through, also comprises one with grid axis hole sealing, that surround tapered channel.Described dual dividing plate comprises the bounded domain of the some that is formed by some spokes, and described spoke is the U-shaped cross section, and the beam of spoke constitutes the dividing plate that holds particle.Among the described therein embodiment, it has 8 zones, and the angle in two zones is 45 °.
When grinding mill rotated, the hole of passing the upstream grid from the particle of upstream chamber accumulated in the described zone.They flowed along the spoke that constitutes dividing plate before this, and then along the tapered centre channel flow, so that arrive downstream part., also be necessary the air-flow that provides very strong herein, this air-flow blows to the downstream from the upstream of inner core, so that help moving and cooling of materials flow.
Main purpose of the present invention provides a kind of dual dividing plate that is used for the tubular grinding mill, makes the inorganic very strong air-flow of this grinding mill, and reduces the energy consumption of grinding mill.
Use dividing plate of the present invention can realize this goal of the invention.The present invention relates to a kind of dual dividing plate that is used for grinding mill.With FR.A.2, mode known in 565,850 is identical, and it also comprises circumferential assembling zone, and according to the present invention, the zone of these assemblings is that the independently material collection module by radially layer assembly constitutes.
As the described mode of embodiment, the collection of particle is to carry out on grinding mill different aspects radially.All particles of coming in from the collection module upstream face all are sent to the downstream chamber and go.Different with known dividing plate, downstream chamber not only is positioned at the center, and has and the inflow aspect of upper module number radially.
Because this special structure can be for the more direct path of providing of particle between upstream and downstream, in identical air-flow, the loss of materials flow can be still less.
Another object of the present invention provides a kind of dual dividing plate, and its available standards part is simply assembled.
For this reason, each collection module comprises a housing that is roughly the trapezoid cross section, is coated with one deck grid on the upstream face of housing, and a material stream passed plate is arranged on the housing downstream face.With the used module on one deck all is identical.Such module layer is that available standard component assembles.
Each housing preferably is provided with like this: it with adjacent housings circumferential or radially between locate and connect by inserting key by bolt.
According to a kind of mode preferably of the present invention, be after trapezoidal housing is fitted together, grid and material stream passed plate are separately fixed on the upstream and downstream face of described housing.Like this, each piece of dividing plate is changed just very convenient, need not to dismantle the polycrystalline substance of dividing plate, promptly trapezoidal housing unit.
Flow plate on the collection module downstream face can be a flat board that has the hole, and this hole is along trapezoidal short base.
Another kind of preferable mode is that the flow plate that covers on the collection module downstream face has grid.This has just further reduced in the out-of-date loss of air-flow effect blanking circulation, has also significantly reduced the energy consumption of grinding mill.
Another object of the present invention provides a kind of dual dividing plate that is used for the tubular grinding mill, owing to adopted this dividing plate, the particle in the downstream chamber can be sent to the bottom that is in close proximity to described dividing plate.And in the dual dividing plate of prior art, a tangible phenomenon is the bottom that material is pulled out away from dividing plate, and this has just reduced the milling efficiency of downstream chamber.
Adopt dividing plate of the present invention can overcome above-mentioned inconvenience.In the present invention, the circumferential skeleton of each housing has an inclined-plane that extends to the downstream from the upstream, and this inclined plane can make particle flow to downstream passage from the upstream grid naturally.
The circumferential skeleton downstream of housing preferably has arcwall face, and the duct on the downstream face favours the extended line of this arc tips.The inclined angle alpha in hole is not less than 30 °.
Therefore, because the tilted shape of the reduction of air velocity and circumferential skeleton, by the effect of collection module and access opening, the particle of sending into downstream chamber can be very near dividing plate.
Below will be with reference to the accompanying drawings, in conjunction with an embodiment the dual dividing plate that is used for tube ball mill of the present invention is described, can more clearly understand other advantage of the present invention and feature thus.Described dual dividing plate comprises 3 layers of trapezoidal collection module.
Fig. 1 is vertical cross-sectional schematic of the sleeve and the dual dividing plate of grinding mill of the present invention.
Fig. 2 is the partial elevation view of dividing plate.
Fig. 3 is the circumferential cutaway view along two adjacent blocks of A-A line among Fig. 2.
Fig. 4 is the front view of housing.
Fig. 5 is the partial enlarged view of Fig. 4.
Fig. 6 suspends the fitting arrangement of housing is installed on sleeve.
As shown in Figure 1, dual dividing plate 1 is contained in the inside of tube ball mill sleeve 2.This dividing plate 1 is divided into two independent cavity with ball mill: the chamber 3 of materials flow direction upstream end and the chamber 4 of downstream part.
The effect of dividing plate 1 be after allowing to mill particle by and block all abrading-ball (not shown)s in the material.It is the air-flow drive that is blown out by air blast that particle moves forward into.
Dividing plate of the present invention is constituted by many collection modules 5, and these modules in week companys of linking upwards, are piled up layer by layer on the other hand and put on the one hand, with formation as this routine described 3-tier architecture.
Figure 2 shows that the part of dividing plate 1, this dividing plate is made of 50 modules 5: with comprise 20 modules on the skin 6 that sleeve 2 contacts, middle level 7 has 20 modules equally, internal layer 8 has 10 modules.
The size that stops awl 10,11 is calculated the wearing and tearing that should be taken into account abrading-ball, therefore need leave enough surpluses.
Each collection module 5 includes 3 parts: center housing 14, a upstream grid 15 and a downstream grid 16.Upstream grid 15 and downstream grid 16 are to be screwed on the upstream of housing 14 and downstream perimeter 17.Have screwed hole 18 on described peripheral 17 for this reason.
Each upstream grid 15 and downstream grid 16 include a plate 19, and porose 20 supply particle to pass through on the plate.Just a kind of form of upstream grid 15 that Fig. 2 represents.12 holes 20 are arranged on this grid.Plate 19 is trapezoidal, and is consistent with the upstream face shape of corresponding housing 14, and the dual- side 21,22 of plate 19 is intersected on the rotary longitudinal 23 of sleeve 2.Hole 20 is shaped as the slit that is roughly parallel to plate 19 other dual-sides 24,25.The hole is divided into two rows, six of every rows.Obviously, side 24,25 is not a straight line, and crooked, from the angle of axis 23, these two limits are concentric.
Owing to adopted dividing plate of the present invention, assembled with regard to the available standards module.For ease of being used on the different grinding mill of diameter, internal layer 8 and middle level 7 used modules are constant, get final product and only need change the size corresponding to outer 6 module that contacts with sleeve 2.Therefore, very big advantage of the present invention is exactly to have several standard modules that only use limited quantity on the grinding mill of different-diameter.
Fig. 6 is illustrated in the mode of on the sleeve 2 of grinding mill housing 14 being installed.The mechanical influence that different dilatancy the subject of knowledge and the object of knowledges produces when grinding mill is worked has adopted a kind of suspension type mounting means (being floating type installation).One truncated cone hole 32 is arranged on the lateral surface 31 of shell 14, a backing plate 33 is arranged below the housing 14, have the hole relative on backing plate 33 and the sleeve 2 with truncated cone hole 32.When assembling, place two ring segments that are frustum-like shape, one is placed between the outside 31 and the backing plate 33, and another is placed between sleeve 2 and the nut 36.On the termination 37 of the bolt 38 that nut is twisted, the head 36 of bolt 38 leans against on the inwall in truncated cone hole 32.Some distortion that expansion produced of dividing plate 1 when ring segment 34,35 can bear grinding mill work.This just can be avoided described sleeve 2 to deform.
As shown in Figure 3, the inside part of housing 14 (being exactly that part of of more close sleeve pipe 2 pivot centers 23) has the side of inclination, extends grid 16 downstream from upstream grid 15 always.
The inside part that tilts can make the grid hole 20 of passing upstream grid 15 and enter into the outlet opening 41 that housing 14 interior particles flow to downstream grid 16 naturally.
Shown in the most preferred embodiment of Fig. 3, the termination 42 of housing 14 inside parts 40 is arcs.Particle outlet opening 41 favours the extended line of arced terminus 42.For this reason, comprise two oblique parallel otch 43 and 44 on the plate 16, wherein, interior otch 43 is on the inside part 40, and outer otch 44 is on Outboard Sections 45.
The present invention is not limited only to the above embodiments, and can comprise many versions.The spy can not install grid on the downstream face of housing, and only uses a flat plate, and this plate is comprising a more than outlet opening with housing inside part corresponding position.
In addition, in the present embodiment, dividing plate is to be made of 3 layers piles of modules of putting.Under the situation that does not exceed the scope of the invention, can only stack two-layer module or stack module more than 3 layers, this will decide on ball mill diameter and the condition of milling.
Piling up the module of putting can be directly to be screwed on the sleeve.
Claims (9)
1, a kind of dual dividing plate that is used for tube ball mill, it is made of the assembly of circumferential connection, it is characterized in that: described assembly is material collection module (5), these modules radially stack and are assembled into multilayer (6,7,8).
2, dividing plate as claimed in claim 1, it is characterized in that: each collection module comprises that its cross section is roughly trapezoidal central housing (14), the housing upstream face is coated with one deck grid (15), and a material stream passed plate is arranged on the housing downstream face, all is identical with all modules on one deck.
3, dividing plate as claimed in claim 2 is characterized in that: connect by the key location and by bolt between each housing (14) and adjacent housings circumferential or radially.
4, dividing plate as claimed in claim 2 is characterized in that: grid (15) and material stream passed plate are after trapezoidal housing assembling is finished, and are separately fixed on the upstream face and downstream face of described housing.
As claim 2 or 4 described dividing plates, it is characterized in that 5, one deck grid (16) is arranged on the downstream face of housing (14).
6, dividing plate as claimed in claim 2 is characterized in that: on the inside part (40) of the circumferential skeleton of each housing (14) side from the upstream inclined downstream is arranged.
7, dividing plate as claimed in claim 6, it is characterized in that: on the downstream (42) of inside part (40) arcwall face is arranged, and the opening (41) on the downstream flow plate (16) favours the extended line of described arc tips, and opening is not less than 30 ° with respect to the inclined angle alpha of the contact-making surface (12) between two-layer collection module (6,7,8).
8, dividing plate as claimed in claim 1, it is characterized in that: collection module (5) is fixed on the sleeve (2) by a suspension installation system, this installation system comprises that at least one is the ring plate of frustum-like shape (34,35), and this ring plate is enclosed within on the set bolt (38).
9, dividing plate as claimed in claim 1, it is characterized in that: in its axis hole (9), comprise an abrading-ball retention device, this retention device comprise at least two with the pivot center (23) of sleeve (2) coaxial stop awl (10,11), stop that inner space between the awl is less than the diameter of abrading-ball in the upstream chamber (3).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9103275A FR2673854B1 (en) | 1991-03-12 | 1991-03-12 | PARTITION FOR A BALLOON CYLINDRICAL CRUSHER WITH MULTIPLE LEVELS OF MATERIAL LIFTING. |
| FR9103275 | 1991-03-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1069909A true CN1069909A (en) | 1993-03-17 |
Family
ID=9410858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92102209 Pending CN1069909A (en) | 1991-03-12 | 1992-03-12 | Multi-layer material collecting partition plate for cylindrical ball mill |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0504041A1 (en) |
| CN (1) | CN1069909A (en) |
| FR (1) | FR2673854B1 (en) |
| WO (1) | WO1992016297A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104028361A (en) * | 2014-06-28 | 2014-09-10 | 山东省章丘鼓风机股份有限公司 | Novel discharging grid plate device of tube mill |
| CN113328553A (en) * | 2020-02-28 | 2021-08-31 | 日本电产株式会社 | Drive device |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5842654A (en) * | 1993-04-23 | 1998-12-01 | Slegten Societe Anonyme | Device for fixing a partition for tube mill and method for this purpose |
| EP0693966B1 (en) * | 1993-04-23 | 1997-05-28 | Slegten, Societe Anonyme | Device for fixing a partition for tube mill and method for this purpose |
| CN103990520A (en) * | 2014-05-30 | 2014-08-20 | 顾开明 | Anti-abrasive grate plate for ball mills |
| CN103990518A (en) * | 2014-05-30 | 2014-08-20 | 顾开明 | Compartment grate plate of ball mill |
| CN108465519B (en) * | 2018-03-25 | 2024-07-02 | 南京腾韬工程技术有限公司 | Cement ball mill activation device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE337518C (en) * | 1919-05-16 | 1921-06-02 | Fried Krupp Akt Ges Grusonwerk | Partition for composite pipe mills |
| US1591941A (en) * | 1921-06-09 | 1926-07-06 | Allis Chalmers Mfg Co | Comminuting mill |
| GB262222A (en) * | 1925-10-12 | 1926-12-09 | Frank Chamberlain | Improvements relating to pan-grates for crushing machines or the like mills for disintegrating solid matter |
| CA909185A (en) * | 1969-09-04 | 1972-09-05 | Dominion Engineering Works Limited | Autogenous mill system |
| GB1312553A (en) * | 1971-01-15 | 1973-04-04 | Smidth & Co As F L | Grinding mills |
| DE2613062B2 (en) * | 1976-03-26 | 1979-03-01 | Polysius Ag, 4720 Beckum | Lifting wall |
| US4498634A (en) * | 1983-09-01 | 1985-02-12 | Fuller Company | Division head for grinding mill |
-
1991
- 1991-03-12 FR FR9103275A patent/FR2673854B1/en not_active Expired - Fee Related
-
1992
- 1992-03-11 WO PCT/FR1992/000217 patent/WO1992016297A1/en active Search and Examination
- 1992-03-11 EP EP92400628A patent/EP0504041A1/en not_active Withdrawn
- 1992-03-12 CN CN 92102209 patent/CN1069909A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104028361A (en) * | 2014-06-28 | 2014-09-10 | 山东省章丘鼓风机股份有限公司 | Novel discharging grid plate device of tube mill |
| CN113328553A (en) * | 2020-02-28 | 2021-08-31 | 日本电产株式会社 | Drive device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1992016297A1 (en) | 1992-10-01 |
| FR2673854B1 (en) | 1993-07-16 |
| FR2673854A1 (en) | 1992-09-18 |
| EP0504041A1 (en) | 1992-09-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |