EP0240575A1 - Plaque élévatrice en forme de L pour radiateurs tubulaires - Google Patents
Plaque élévatrice en forme de L pour radiateurs tubulaires Download PDFInfo
- Publication number
- EP0240575A1 EP0240575A1 EP86103643A EP86103643A EP0240575A1 EP 0240575 A1 EP0240575 A1 EP 0240575A1 EP 86103643 A EP86103643 A EP 86103643A EP 86103643 A EP86103643 A EP 86103643A EP 0240575 A1 EP0240575 A1 EP 0240575A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- section
- receiving trough
- lifting
- bucket according
- fastening section
- 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.)
- Granted
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/14—Rotary-drum furnaces, i.e. horizontal or slightly inclined with means for agitating or moving the charge
- F27B7/16—Rotary-drum furnaces, i.e. horizontal or slightly inclined with means for agitating or moving the charge the means being fixed relatively to the drum, e.g. composite means
- F27B7/161—Rotary-drum furnaces, i.e. horizontal or slightly inclined with means for agitating or moving the charge the means being fixed relatively to the drum, e.g. composite means the means comprising projections jutting out from the wall
- F27B7/162—Rotary-drum furnaces, i.e. horizontal or slightly inclined with means for agitating or moving the charge the means being fixed relatively to the drum, e.g. composite means the means comprising projections jutting out from the wall the projections consisting of separate lifting elements, e.g. lifting shovels
Definitions
- the invention relates to an L-shaped lifting vane for pipe coolers, in particular those for crushing and cooling cement clinker, in which one leg forms a fastening section provided with at least one screw opening and the other leg forms a driver section which has a receiving trough delimited by a curved bottom wall.
- Such lifting blades are fixed to the jacket of a tube cooler directly or with brackets interposed.
- Lifting blades of this type have long been in a cooler rotating about a slightly inclined axis relative to the horizontal, z. B. satellite coolers in the cement industry set. They serve to improve the heat transfer from the material to be cooled to a flow of cooling air, since during the slow rotary movement they lift the hot material that passes through and let it flow through the air jet in the form of a more or less dense veil over the entire cooler diameter.
- the cooling air conducted in counterflow to the material to be cooled preferably flows through the path with the least resistance. If the veil of the material to be cooled did not cover the entire cross section of the cooler, the cooling air would thus predominantly flow through the areas free of the material to be cooled. It would then lose its cooling effect accordingly, and the cooling efficiency would be reduced. Therefore, the known lifting blades are cup-shaped in such a way that the material to be cooled releases the material to be cooled more or less uniformly when the cooler is rotated in the various successive angular positions during the rotary movement of the cooler.
- a major disadvantage of these known cup-shaped lifting blades is their relatively short service life. In addition to their thermal and chemical loads, these lifting blades are also extremely mechanically stressed. Each time the cooler rotates, the lifting blades are heated up strongly during the scooping process, i.e. when the material to be cooled is picked up, and then cooled in the cooling air flow. This can result in a temperature difference on the blades of up to 500 ° C. Because it’s too cold ling material are usually also more or less large chunks, which are also lifted up and thrown off, the front ends of the blades are very quickly destroyed and rolled inwards. These blades can then no longer properly perform the task intended for them in the cooler.
- the invention is based on the object of creating a lifting blade of the type mentioned at the outset which does not have the aforementioned disadvantages and is distinguished by long service lives with good cooling action.
- This object is achieved according to the invention in a lifting vane of the type mentioned at the outset in that the two end regions of the receiving trough of the leg forming the driver section lie on a reference plane which forms an angle ⁇ of 93 ° to 105 ° with the other leg (fastening section) such that the receiving trough measured in its longitudinal center from the reference plane is 2.5 to 5 cm deep and here has its lowest point, and that the length of the driver section measured normal to the fastening section is 16 to 24 cm.
- the lifting blade according to the invention is designed in such a way that its bearing surface is large relative to the amount of material to be cooled that is carried along. This means that there is a high heat transfer between the material to be cooled and the lifting blade. Due to its shape, which works like cooling fins, it is quickly and sustainably cooled by the cooling air flow.
- the material volume of the lifting blade itself is relatively small and therefore stores less heat than previously known Bucket shovels and leads them to the cooler jacket to a lesser extent.
- the cross section of the cooler is divided into a section in which the material to be cooled falls essentially in a veil shape, and a further section through which the cooling air is guided, the amount of particles entrained by the cooling air flow is significantly reduced.
- the lifting blade according to the invention is designed in such a way that its basic orientation opposes the falling angle of larger pieces of material falling down like a sword, while offering a small impact surface for these pieces. Falling larger chunks hit the front edge of the lifting blade, from where the impact energy is transferred directly to the fastening section. This largely avoids wear and damage to the lifting vane, and it also ensures good smashing of the larger chunks to be cooled. When the lumps hit the lifting vane from the side, the lumps are discharged, reducing the impact energy.
- the lifting blade according to the invention can be designed so that the angle ⁇ is 97 ° to 100 °. With an inclination in the specified range, particularly favorable results can be achieved according to the current tests.
- the lifting blade according to the invention can also be designed such that the maximum depth of the receiving trough measured from the reference plane is 2.5 to 3 cm.
- the lifting blade according to the invention can also be designed so that the length of the driver section is 16 to 18 cm.
- the lifting blade according to the invention can also be designed such that the driver section has a reinforcing bead on its edge facing away from the fastening section. In this way, an additional reinforcement of the lifting vane is brought about in the area in which rough chunks must be expected to hit.
- the lifting blade according to the invention can also be designed such that the receiving trough is divided by at least one wall connecting its two end regions. This promotes the distribution of the material across the width of the lifting bucket.
- the lifting vane according to the invention can be designed such that at least one stiffening rib is provided between the bottom wall and the fastening section. This stiffening rib increases the stability of the lifting blade considerably.
- the lifting vane according to the invention shown in FIGS. 1-5 is essentially L-shaped in its side view (FIGS. 3 to 5).
- One leg is formed by a plate-shaped fastening section 1, which is provided with two outwardly projecting lugs 2 .
- a screw opening 3 in the area of each attachment 2, into each of which a screw (not shown) for fixing the lifting blade to a jacket 4 of a tube cooler can be inserted.
- Another leg of the L-shaped lifting vane in the side view is formed by a driver section 5 which has a bottom wall 6 which delimits a receiving trough 7.
- the receiving trough 7 is divided by two side walls 8 and a partition 9.
- the side walls 8 and the partition 9 run substantially parallel to one another from one end region of the driver section to the other.
- the bottom wall 6 is provided with a reinforcing bead 13 at its edge which is furthest away from the fastening section 1.
- Two stiffening ribs 14 running parallel to one another additionally support the bottom wall 6 on the fastening section 1.
- the edges delimiting the receiving trough 7 in the middle end regions lie on a reference plane B, which forms an angle ⁇ of 95 ° to 100 ° with respect to the fastening section 1.
- the maximum depth of the receiving trough 7 is 2.5 to 3.0 cm, measured from the reference planes B.
- the length L of the driver section 5 measured normal to the fastening section is 16 to 18 cm. This described length L decreases in the case of the described lifting bucket on its sides, since the reinforcing bead 13 is slightly bent back towards its ends.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Furnace Details (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Pyrane Compounds (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Containers, Films, And Cooling For Superconductive Devices (AREA)
- Silicon Compounds (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
- Table Equipment (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP86103643A EP0240575B1 (fr) | 1986-03-18 | 1986-03-18 | Plaque élévatrice en forme de L pour radiateurs tubulaires |
AT86103643T ATE46762T1 (de) | 1986-03-18 | 1986-03-18 | L-foermige hubschaufel fuer rohrkuehler. |
DE8686103643T DE3665928D1 (en) | 1986-03-18 | 1986-03-18 | L-shaped lifting blade for tube coolers |
DK167086A DK167086A (da) | 1986-03-18 | 1986-04-11 | L-formet loefteskovl til roerkoelere |
ES1986294242U ES294242Y (es) | 1986-03-18 | 1986-05-05 | Cuchara elevadora en forma de l para enfriadores tubulares |
FI862104A FI82308C (fi) | 1986-03-18 | 1986-05-20 | L-formig lyftskovel foer roerkylare. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP86103643A EP0240575B1 (fr) | 1986-03-18 | 1986-03-18 | Plaque élévatrice en forme de L pour radiateurs tubulaires |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0240575A1 true EP0240575A1 (fr) | 1987-10-14 |
EP0240575B1 EP0240575B1 (fr) | 1989-09-27 |
Family
ID=8194974
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP86103643A Expired EP0240575B1 (fr) | 1986-03-18 | 1986-03-18 | Plaque élévatrice en forme de L pour radiateurs tubulaires |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0240575B1 (fr) |
AT (1) | ATE46762T1 (fr) |
DE (1) | DE3665928D1 (fr) |
DK (1) | DK167086A (fr) |
ES (1) | ES294242Y (fr) |
FI (1) | FI82308C (fr) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1501566A (en) * | 1922-07-08 | 1924-07-15 | Huron Ind Inc | Lining for cement-drying kilns |
US3910756A (en) * | 1972-11-10 | 1975-10-07 | Polysius Ag | Heat treating drum |
GB1423300A (en) * | 1973-04-09 | 1976-02-04 | Polysius Ag | Rotary drum for the heat treatment of strongly erosive material |
DE2631397A1 (de) * | 1976-07-13 | 1978-01-19 | Polysius Ag | Planetenkuehler |
-
1986
- 1986-03-18 AT AT86103643T patent/ATE46762T1/de not_active IP Right Cessation
- 1986-03-18 EP EP86103643A patent/EP0240575B1/fr not_active Expired
- 1986-03-18 DE DE8686103643T patent/DE3665928D1/de not_active Expired
- 1986-04-11 DK DK167086A patent/DK167086A/da not_active IP Right Cessation
- 1986-05-05 ES ES1986294242U patent/ES294242Y/es not_active Expired
- 1986-05-20 FI FI862104A patent/FI82308C/fi not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1501566A (en) * | 1922-07-08 | 1924-07-15 | Huron Ind Inc | Lining for cement-drying kilns |
US3910756A (en) * | 1972-11-10 | 1975-10-07 | Polysius Ag | Heat treating drum |
GB1423300A (en) * | 1973-04-09 | 1976-02-04 | Polysius Ag | Rotary drum for the heat treatment of strongly erosive material |
DE2631397A1 (de) * | 1976-07-13 | 1978-01-19 | Polysius Ag | Planetenkuehler |
Also Published As
Publication number | Publication date |
---|---|
DK167086A (da) | 1987-09-19 |
ES294242Y (es) | 1987-06-16 |
EP0240575B1 (fr) | 1989-09-27 |
FI862104A0 (fi) | 1986-05-20 |
FI82308B (fi) | 1990-10-31 |
ES294242U (es) | 1986-10-16 |
DE3665928D1 (en) | 1989-11-02 |
DK167086D0 (da) | 1986-04-11 |
FI82308C (fi) | 1991-02-11 |
FI862104A (fi) | 1987-09-19 |
ATE46762T1 (de) | 1989-10-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1871514B1 (fr) | Lame de melange comprenant un element d'usure amovible | |
DE4113256A1 (de) | Anti-verfangmechanismus fuer einen drehschieber mit konstantem volumenausstoss gekoernten materials | |
DE102009018178A1 (de) | Scher-/Mischwerkzeug | |
DE2335588B2 (de) | Verfahren zum herstellen metallischer verbundgusstuecke | |
EP0185916A2 (fr) | Auge de soulèvement pour cylindre de refroidissement de matériaux se présentant au moins partiellement en morceaux | |
EP0240575B1 (fr) | Plaque élévatrice en forme de L pour radiateurs tubulaires | |
CH406085A (de) | Abwasserbehandlungsvorrichtung | |
DE2500027B2 (de) | Misch- und Granuliervorrichtung | |
WO2000037729A1 (fr) | Tambour pour lave-linge | |
EP0288565A1 (fr) | Broyeur tubulaire a bille | |
DE2710079C2 (de) | Mischschaufel für einen Zwangsmischer | |
EP0327650B1 (fr) | Dispositif pour dégager la zone de la flamme dans un four rotatif à chauffage direct et disposition et construction des pelles | |
DE102017210277A1 (de) | Schaufelradbagger mit versetzter Fördereinrichtung | |
EP3628611B1 (fr) | Écluses à roue cellulaire pour le produit en vrac granulaire | |
DE2540792C3 (de) | Drehrohrmehrofenanlage zur Herstellung von Blähton | |
DE3620763A1 (de) | Einschnuer-flansch fuer giessverfahren | |
DE3119108A1 (de) | "waermetauscher fuer rieselfaehiges gut" | |
EP3357580B1 (fr) | Broyeur agitateur ayant un revêtement en céramique | |
DE7313428U (de) | Drehtrommel zur thermischen Behandlung von stark schleißendem Gut | |
DE10215639A1 (de) | Horizontalmischer mit Abstreifern | |
DE937579C (de) | Verteilerschnecke fuer Muellwagen | |
EP0290604A1 (fr) | Broyeur tubulaire a boulets | |
DE3121549A1 (de) | Schleuderbrecher mit umlaufend angetriebenem rost | |
DE2130895A1 (de) | Schaufeleinrichtung fuer das Ruehrwerk eines Mischers | |
DE3502342A1 (de) | Einrichtung zum sammeln und foerdern von schuettgut |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE FR GB IT LI LU NL SE |
|
17P | Request for examination filed |
Effective date: 19880319 |
|
17Q | First examination report despatched |
Effective date: 19890310 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH DE FR GB IT LI LU NL SE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Effective date: 19890927 Ref country code: NL Effective date: 19890927 |
|
REF | Corresponds to: |
Ref document number: 46762 Country of ref document: AT Date of ref document: 19891015 Kind code of ref document: T |
|
REF | Corresponds to: |
Ref document number: 3665928 Country of ref document: DE Date of ref document: 19891102 |
|
ITF | It: translation for a ep patent filed |
Owner name: SOCIETA' ITALIANA BREVETTI S.P.A. |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) | ||
ET | Fr: translation filed | ||
NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
ITTA | It: last paid annual fee | ||
EPTA | Lu: last paid annual fee | ||
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 19960227 Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 19960318 Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 19960325 Year of fee payment: 11 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Effective date: 19970318 Ref country code: AT Effective date: 19970318 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 19970318 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19971128 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: LU Payment date: 20020325 Year of fee payment: 17 Ref country code: CH Payment date: 20020325 Year of fee payment: 17 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20030318 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20030331 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20030331 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: BE Payment date: 20040322 Year of fee payment: 19 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20040528 Year of fee payment: 19 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF THE APPLICANT RENOUNCES Effective date: 20050111 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 20050318 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050331 |
|
BERE | Be: lapsed |
Owner name: *GIESSEREI KOHLSCHEID G.M.B.H. Effective date: 20050331 |
|
BERE | Be: lapsed |
Owner name: *GIESSEREI KOHLSCHEID G.M.B.H. Effective date: 20050331 |