CN1042648C - Rotary body suspension device - Google Patents
Rotary body suspension device Download PDFInfo
- Publication number
- CN1042648C CN1042648C CN95193306A CN95193306A CN1042648C CN 1042648 C CN1042648 C CN 1042648C CN 95193306 A CN95193306 A CN 95193306A CN 95193306 A CN95193306 A CN 95193306A CN 1042648 C CN1042648 C CN 1042648C
- Authority
- CN
- China
- Prior art keywords
- roller
- translational surface
- moving belt
- rollers
- weight
- 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.)
- Expired - Fee Related
Links
- 239000000725 suspension Substances 0.000 title claims abstract description 13
- 239000002184 metal Substances 0.000 claims abstract description 13
- 238000009826 distribution Methods 0.000 claims abstract description 8
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 230000002950 deficient Effects 0.000 claims description 2
- 125000004122 cyclic group Chemical group 0.000 claims 1
- 238000005096 rolling process Methods 0.000 abstract 6
- 230000005489 elastic deformation Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 238000013178 mathematical model Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/18—Bell-and-hopper arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/0025—Charging or loading melting furnaces with material in the solid state
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/10—Charging directly from hoppers or shoots
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D2003/0001—Positioning the charge
- F27D2003/0006—Particulate materials
- F27D2003/0007—Circular distribution
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D2003/0034—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities
- F27D2003/0042—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities comprising roller trains
- F27D2003/0045—Use of rollable bodies, e.g. balls
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Road Paving Machines (AREA)
Abstract
A suspension device for rotary bodies such as rotary hoppers has on one side a metal bearing band which defines a ring-shaped rolling surface (34) and on the other side at least n metal rollers (24), n being an integer higher than 3. The n rollers (24) contact said rolling surface (34). An elastic compressible member (32), preferably a metal web provided with oblong holes (40) parallel to the rolling surface (34), is arranged below the metal bearing band so that the rolling surface is elastically deformed around the contact points (Pi) between the rollers (24) and the rolling surface (34). These elastically compressible members (32) are sized so that the elastic deformation of the rolling surface (34) is sufficient to substantially correct an unequal distribution of the weight of the rotary hopper (14) on the n rollers (24) due to slight surface irregularities of the n rollers (24).
Description
The present invention relates to be used to hang the weight that rotates around a basic Z-axis, for example suspension system of rotatable hopper.The invention particularly relates to this class device, the metal moving belt that one formation, one annular movement surface is promptly arranged on one side at it, have n roller at least at its other side, wherein n is the integer greater than 3, this n roller is arranged by a kind of like this mode, promptly is pressed on the described translational surface to support described rotator.
This class device can be described the rotatable hopper of suspension system together with shaft furnace in this document from for example learning the US-A-4812100 U.S. patent documents.Its weight has the hundreds of ton after a rotatable hopper charging like this.If to become 120 ° of angle apart arrangement to each other, the size that should select each supporting roll so makes each roller bear 1/3 of funnel weight at least with three supporting rolls.Certainly, significantly to do the size of roller as much as possible little.Therefore, just produced the idea of making more than three rollers.Yet this idea but has certain problem when reality is implemented.In fact, if funnel, has recognized so that each selected roller is not to bear 25% of funnel weight by four roll support each other in 90 ° of angle apart arrangement, but each roller must be born 50% of funnel weight at least.The reason that produces this contradictory phenomena is that four rollers are strictly aimed at grade in fact till the ass ascends the ladder.
In above-mentioned file, be by providing four pair of rollers that are installed on the special suspension system to solve more than the problem on three rollers with the funnel distribution of weight.In fact every pair of rollers can drive around the axle that a longitudinal axis is rotated by one, and uses the floating bearing that is installed on the spring that each roller is installed on its axle.
Basic problem of the present invention is to recommend a kind of device of the above-mentioned type, this device is much simpler than the described apparatus structure of US-A-4812100 U.S. patent documents, and stands good and distributing more than the inequality on three rollers in the weight of adjusting described weight body significantly.
According to the present invention, this problem solves by a compressible elastomeric spare, and this elastic component is positioned the moving belt back, thereby makes the flexible distortion on every side of the point of contact of translational surface between roller and translational surface.In addition, the size of selected these resiliency compressible parts, because of the coplanar little defective of roller causes during described weight body weight skewness, the described recoverable deformation of translational surface is enough to this is adjusted significantly with box lunch.
The invention has the advantages that the suspension system of a this n roller is much simpler than the described device of US-A-4812100 U.S. patent documents, the viewpoint from load sharing can guarantee load is evenly distributed on n the roller simultaneously.
Described resiliency compressible part certainly is to be placed on ring under the moving metal strip that forms translational surface by what elastomerics was made.Yet, will be appreciated that the resiliency compressible part that the present invention recommends is metal fully.According to most preferred embodiment of the present invention, in fact these resiliency compressible parts are made up of a metal strip that has the oval slotted hole parallel with translational surface.Will be appreciated that the production of this solution is very simple, increase cost hardly, and do not need maintenance and have the excellent elasticity deformation characteristic.
Device according to the present invention preferably includes support cylinder body, the ring-type flange connector and the moving belt that is fixed on described supporting flang on that by first end face of described support cylinder body are supported very big with rotating shaft coaxle and rigidity.And the support cylinder body has some oval slotted holes parallel with translational surface near the flange connector place.When this structure applications during in rotatable hopper, described support cylinder body forms the cylindric wall as funnel.Will be appreciated that also translational surface both can be fixed on the rotator, also can be fixed on the supporting structure.
Other advantage of the present invention and characteristic will be by to most preferred embodiments of the present invention; For example detailed description and the accompanying drawing that is used as the rotatable hopper of blast furnace learnt, wherein:
Fig. 1 is the stereographic map on blast furnace (top), and it is equipped with the rotatable hopper that is installed on the suspension system of the present invention;
Fig. 2 and Fig. 3 are used to explain basic problem of the present invention; They illustrate the orthographic plan of device (Fig. 2) that has three supporting rolls and the device (Fig. 3) that has four supporting rolls respectively;
Fig. 4 A and Fig. 4 B are the linear outspreads that has the suspension of four rollers; System among Fig. 4 B shows the system's processing and situation after the present invention is consistent among Fig. 4 A;
Fig. 5 is the vertical plane sectional view of the suspension system of the present invention of rotatable hopper shown in Figure 1;
Fig. 6 by means of two figure signal interpretations according to the distortion situation of the translational surface of the most preferred embodiment of apparatus of the present invention.
Fig. 1 illustrates the top of blast furnace 10, and it is equipped with the feeding device 12 that is used for the center feed.Feeding device 12 comprises the auxiliary funnel with reference number 14 signs.This is a rotatable hopper, and it can asymmetric feed occur to avoid the being positioned at funnel in batches 15 of auxiliary funnel below 14 round medullary ray 16 rotations of blast furnace 10.
Auxiliary funnel 14 is installed on the platform 18 that upper junction member 20 supports successively.Upper junction member 20 is placed on the furnace wall 22 of blast furnace 10.Funnel 14 is suspended on the platform 18 by four rollers 24 that are installed on the platform 18.These rollers 24 are pressed in around on funnel 14 and the close-fitting with it annular movement band 26.
It can also be seen that from Fig. 1 funnel 14 comprises a top part of being made up of cylindric wall 28 and a bottom part of being made up of coniform wall 30.Moving belt 26 is fixed on the lower edge of cylindric wall 28, and this edge is outstanding towards the bottom slightly, so that being connected between cylindric wall 28 and the coniform wall 30.Like this, when funnel 14 load-bearing of the feeding device 12 of blast furnace 10, the about hundreds of ton of its weight.This weight must be born by support rollers 24, so as by platform 18 and upper junction member 20 with weight transfer to the furnace wall 22 of blast furnace 10.
Below with reference to Fig. 2, Fig. 3 and Fig. 4 A basic problem of the present invention is discussed.Three isolating support rollers that are 120 ° of distributions as can see from Figure 2 mutually.The intersection point of the turning axle of these three rollers drops on the axis 16.Clearly, in such layout, when the center of gravity of funnel drops on the axis 16, three rollers 24
1, 24
2With 24
3Bear 1/3 of funnel 14 gross weights respectively.At first sight, can be desirably under the situation of Fig. 3 four rollers 24
1, 24
2, 24
3With 24
4In each roller should bear 1/4 of funnel gross weight.Yet, in fact be not this situation.This is because expression roller 24
1, 24
2, 24
3With 24
4Four point of contact P that may contact with moving belt 26
1, P
2, P
3And P
4Never can strictly fall at grade.As a result, translational surface only is pressed on three rollers.Fig. 4 A is the linear outspread that installs among Fig. 3; Wherein the roller that contacts with translational surface is 24
1, 24
3With 24
4In Fig. 3, the center of gravity projection G that can see funnel 14 drop on radius (0, P
4) on, and apart from the O point have one the distance " e ".And the reactive force that acts on the roller is easy to calculate by following:
R
2=0；R
4=(2e/D)×P；R
1=R
3=(P/2)×(1-e/D)
In the formula: D is the diameter of shift ring 32.
Because ratio e/D very little usually (in other words, the center of gravity G of funnel 14 is very little from 0 radial displacement) this means the size that should select four rollers, so that each roller can bear 50% of funnel weight.It is important that also the moving belt 26 that should point out to be fixed on the lower surface of the right cylinder 28 with vertical axis can be used as the substrate of the infinitely-great beam of rigidity and treats.In other words, moving belt 26 is actually non deformable.
Fig. 4 B illustrates the suspension system that has four rollers of having retrofited by the present invention shown in Fig. 4 A.Note that moving belt 26 has been installed on the resiliency compressible element 32, thereby the translational surface 34 that makes moving belt 26 is at roller 24
iAnd can flexiblely be out of shape around the point of contact Pi between the moving belt 26.Should select more specifically size by the total system that moving belt 26 and resiliency compressible element 32 are formed, thereby be enough to adjust the unequal distribution of weight on four rollers 24 of funnel 14 in local elasticity's distortion of roller 24i place translational surface 34 basically.As the result of this prearranged local deformaton, at roller 24
1With 24
3The translational surface 34 at place is crooked, and in Fig. 4 A herein reactive force R
1And R
3All be about 50% of funnel gross weight.Because at roller 24
1With 24
3The local deformaton at place is slightly caved in wall 28.At this moment, roller 24
2Contact with translational surface 34.Meanwhile, the weight of funnel has carried out redistributing significantly among four rollers.In other words, element 32 makes moving metal strip 26 have enough elasticity, thereby has proofreaied and correct defect influence on four roller 24i coplanes by local deformaton, and makes the weight of funnel 14 obtain better distribution thus on four roller 24i.
Fig. 6 represents that compressible band element 32 is inserted between moving belt 26 and the almost infinitely-great cylindric wall 28 of rigidity.As can be seen, be simply by obtaining with 32 compressibility near having oval slotted hole 40 these wise moves that are parallel to translational surface 34 on the cylindric wall 28 of moving belt 26.These holes 40 are distributed on the wall 28 with the revolution symmetric mode, and preferably are divided into two rows, wherein one come on another row.The oval slotted hole 40 of the row of note that with respect under arrange oval slotted hole displacement arranged, this mode makes round cover down material between row's two adjacent holes.The effect that to inquire into this special arrangement of oval slotted hole 40 by means of A and the B of Fig. 6 below.
In the A and B of Fig. 6, element 32 is by two ideal beam 34 ＇ that are superimposed and 42 ＇ simulation.From the viewpoint of distortion, beam 34 ＇ simulate translational surface 34.The fiber band of beam 42 ＇ simulation between the oval slotted hole 40 of two rows.Beam 34 ＇ are pressed on beam 42 ＇ by two elastic supporting member for supporting optical member 44.Elastic supporting member for supporting optical member is the interval region (that is wall material) between the following round 40.These interval regions are under last round 40, and they can carry out recoverable deformation towards the direction of these oval slotted holes.Beam 42 ＇ are pressed on the rigid strutting piece 46.The latter is the material of the wall 28 under following round 40.
True beam 34 ＇ of shown in the A of Fig. 6 two and 42 ＇ are in non-deformation state (reactive force R=0).Shown in the B of Fig. 6 is to act on vertically that beam 34 ＇ go up and with first rigid strutting piece 46 on a line time as a big partial load Rmax, the distortion situation of two true beam 34 ＇ and 42 ＇.As can be seen, between strut member 44, because the existence of first round 40, but beam 34 ＇ Free Transforms.The rigidity almost infinitely-great wall 28 of rigid strutting piece 46 simulations on this hole; In fact it be not subjected to the influence of this distortion.In addition, since the effect of last round 40, elastic supporting member for supporting optical member 44 elastic bending under load R effect.In a word, the local deformaton of translational surface at the point of contact Pi place of by-local forces what R represented in these two kinds of distortion.It should be noted that, made this situation of description become possibility for this structure that has oval slotted hole as the mathematical model of using finite element, promptly under concrete situation about using, when the funnel of the above-mentioned type when supporting more than three supporting rolls, it is very big that the local elasticity of translational surface 32 is out of shape accessible numerical value, must be enough to have a strong impact on the distribution of funnel weight at roller greatly.The mathematical model that has oval slotted hole structure also can draw about selecting some conclusion of oval slotted hole 40 sizes.Consider with oval slotted hole and produce relevant physical condition, it is as follows to summarize the conclusion of making:
The shape in-hole: the rectangle that has rounded ends;
The size in-hole: the length in hole preferably right central angle less than the length of 10 ° circular arc; The height in hole is about 1/4 of its length;
The layout in-hole: two overlapping aligned apertures; The length of adjacent two hole separations is about 80% of bore length in same row; The symmetrical plane in second row's hole and first row, two holes is symmetrical.
The people that present technique is familiar with will possess making the ability of these parameter optimizations or modification under every kind of applicable cases, and by means of finite element method for example with above-mentioned applicable cases modeling.
Describe other key character of institute's recommendation apparatus below with reference to Fig. 5, this figure is the sectional view in circle bight of the funnel 14 in circle in Fig. 1.Therefrom an annular flange connector 50 is soldered on the Crumple element 32 as can be seen.By bolt moving belt 26 is connected with flange connector 50.It preferably is divided into 5 annular sector pieces that are 72 ° of distributions.Therefore will never occur the situation that two rollers are in two junctions between secter pat together also can not occurring on the same secter pat that two rollers are pressed in moving belt.Like this, be divided into the block of the moving belt 26 of n+1 piece, can be to translational surface 34 with the reactive force " conduction " of roller, its result causes favourable effect.Guaranteed also that at the groove 52 of flange perimeter each secter pat of moving belt easily and suitably navigates on the flange 50.These secter pats in fact can be taken as the expendable part that should regularly replace.Moving belt 26 defines a taper translational surface 34.Forming this surperficial conial vertex is positioned under the translational surface and on pivot center 16.Should also be noted that preferably hollow section of moving belt 26.The translational surface projection of roller 24 guarantees that by this way roller 24 produces actual some contact with the taper translational surface along contacting circumference.Be the power optimizing of guaranteeing that Crumple element 32 obtains, the contact circumference should match with right cylinder 28 projections of cross section center line on translational surface.
The people that present technique is familiar with will be easy to content application of the present invention in more than four rollers.In the device of type shown in Figure 1, will preferably use is 90 ° of isolating four pair of rollers in angle each other.On platform 18, these pair of rollers are installed in the place of four rigidity maximums of platform 18, i.e. the node place that connects between platform 18 and the last structural part 20.
Abovely suspension system of the present invention has been described with reference to rotatable hopper.But when use reduced the load-bearing problem of single roller more than three supporting rolls, it can also be used for other weight that rotates around axis (as jar, rotation transporting chute, rotation platform etc.).
Claims (14)
1, is used for hanging the suspension system of the weight that centers on a basic vertical pivot (16) rotation, this device comprises, at it metal moving belt (26) on an annular movement surface (34) is arranged on one side, have n metal rolls (24) at least at its other side, wherein n is the integer greater than 3, this n roller (24) is arranged by a kind of like this mode, promptly is pressed in described translational surface (34) and goes up to support axis (16) rotation of described rotator (14) around described basic vertical rotation, it is characterized in that:
Resiliency compressible part (32) is positioned at metal moving belt (26) back, thereby make point of contact (Pi) the on every side flexible distortion of translational surface between roller (24) and translational surface (34), the size of selected described resiliency compressible part (32), when causing the weight distribution of described weight body (14) on roller (24) inhomogeneous with box lunch because of the little defective that exists on the coplane that n roller (24) arranged, described recoverable deformation is enough to this is adjusted significantly.
2, device according to claim 1 is characterized in that described compressible elastomeric spare is made up of the metal strip (32) that has the oval slotted hole (40) that is parallel to translational surface (34).
3, device according to claim 1 is characterized in that having:
One with rotating shaft coaxle and the very big support cylinder body (28) of rigidity,
A ring-type flange connector (50) that supports by first end face of described support cylinder body (28),
A moving belt (26) that is fixed on the described supporting flang (50),
Described support cylinder body (28) is locating to have the oval slotted hole (40) parallel with translational surface near flange connector (50).
4, device according to claim 2 is characterized in that being parallel to translational surface (34) and has two row's oval slotted holes (40) at least, and wherein there is displacement in the first platoon leader hole with respect to the second platoon leader hole.
5, device according to claim 4 is characterized in that the second platoon leader hole is below the spatial vertical between the first platoon leader hole.
6, device according to claim 2, the length that it is characterized in that oval slotted hole (40) make circular arc right central angle less than 10 °.
7, device according to claim 2 is characterized in that the end of oval slotted hole (40) is a circular arc.
8, device according to claim 2 is characterized in that these oval slotted holes (40) distribute with the revolution symmetric mode around rotation axis (16).
9, device according to claim 3 is characterized in that moving belt (26) has hollow section.
10, device according to claim 3 is characterized in that moving belt (26) is divided into n+1 cyclic secter pat.
11, device according to claim 3 is characterized in that the contact circumference between moving belt (26) and the roller (24) is corresponding with the cross section projection of described support cylinder.
12, device according to claim 1 is characterized in that translational surface (34) is a conical surface, form this surperficial conial vertex and be positioned on the rotation axis, and roller (24) has the translational surface that protrudes protuberance.
13, device according to claim 1 it is characterized in that translational surface (34) is connected with article for rotation (14), and roller (24) is rigidly fixed on the support platform (18).
14,, it is characterized in that described weight is a rotatable hopper according to each described device in the claim 1 to 13.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LU88495 | 1994-06-14 | ||
| LU88495A LU88495A1 (en) | 1994-06-14 | 1994-06-14 | Suspension device for a rotating body |
| US08/764,534 US5749820A (en) | 1994-06-14 | 1996-12-12 | Suspension device for a rotating body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1149320A CN1149320A (en) | 1997-05-07 |
| CN1042648C true CN1042648C (en) | 1999-03-24 |
Family
ID=26640356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95193306A Expired - Fee Related CN1042648C (en) | 1994-06-14 | 1995-05-05 | Rotary body suspension device |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP0765404B1 (en) |
| JP (1) | JPH10501304A (en) |
| CN (1) | CN1042648C (en) |
| AU (1) | AU2525995A (en) |
| BR (1) | BR9507419A (en) |
| CZ (1) | CZ284396B6 (en) |
| DE (1) | DE69501894T2 (en) |
| LU (1) | LU88495A1 (en) |
| WO (1) | WO1995034689A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020170277A1 (en) * | 2019-02-21 | 2020-08-27 | Qualical International Srl | System for conveying and distributing limestone in vertical furnaces |
| CN114812193B (en) * | 2022-06-30 | 2022-09-09 | 唐山精研实业有限责任公司 | Locally fluidized water plow type sealing discharger |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2613826A (en) * | 1949-10-19 | 1952-10-14 | Little Inc A | Rotary seal for furnace tops |
| FR1091259A (en) * | 1954-01-09 | 1955-04-08 | Dingler Ets | Rotary closing device for furnaces and in particular blast furnaces |
| DE965814C (en) * | 1954-07-20 | 1957-06-19 | Demag Ag | Rotary mechanism for feeding hoppers from blast furnaces u. Like shaft ovens |
| DE1013681B (en) * | 1954-12-03 | 1957-08-14 | Dingler Werke Ag | Sealing device on rotatable top closures of shaft furnaces, in particular blast furnaces |
| LU86824A1 (en) * | 1987-03-24 | 1988-11-17 | Wurth Paul Sa | RUNWAY FOR A ROTATING HOPPER |
-
1994
- 1994-06-14 LU LU88495A patent/LU88495A1/en unknown
-
1995
- 1995-05-05 BR BR9507419A patent/BR9507419A/en not_active IP Right Cessation
- 1995-05-05 DE DE69501894T patent/DE69501894T2/en not_active Expired - Fee Related
- 1995-05-05 WO PCT/EP1995/001717 patent/WO1995034689A1/en active IP Right Grant
- 1995-05-05 CZ CZ963656A patent/CZ284396B6/en not_active IP Right Cessation
- 1995-05-05 JP JP8501530A patent/JPH10501304A/en not_active Ceased
- 1995-05-05 AU AU25259/95A patent/AU2525995A/en not_active Abandoned
- 1995-05-05 EP EP95919411A patent/EP0765404B1/en not_active Expired - Lifetime
- 1995-05-05 CN CN95193306A patent/CN1042648C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| AU2525995A (en) | 1996-01-05 |
| BR9507419A (en) | 1997-09-09 |
| CZ365696A3 (en) | 1997-04-16 |
| WO1995034689A1 (en) | 1995-12-21 |
| EP0765404B1 (en) | 1998-03-25 |
| LU88495A1 (en) | 1996-02-01 |
| DE69501894D1 (en) | 1998-04-30 |
| CZ284396B6 (en) | 1998-11-11 |
| JPH10501304A (en) | 1998-02-03 |
| EP0765404A1 (en) | 1997-04-02 |
| DE69501894T2 (en) | 1998-07-23 |
| CN1149320A (en) | 1997-05-07 |
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| Date | Code | Title | Description |
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