EP1190103A1 - Gichtverschluss für schachtöfen, insbesondere hochöfen mit einen guteinlauftrichter - Google Patents
Gichtverschluss für schachtöfen, insbesondere hochöfen mit einen guteinlauftrichterInfo
- Publication number
- EP1190103A1 EP1190103A1 EP00927051A EP00927051A EP1190103A1 EP 1190103 A1 EP1190103 A1 EP 1190103A1 EP 00927051 A EP00927051 A EP 00927051A EP 00927051 A EP00927051 A EP 00927051A EP 1190103 A1 EP1190103 A1 EP 1190103A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- flange
- funnel
- rotating
- furnaces
- closing device
- 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
- 239000000463 material Substances 0.000 title abstract description 15
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 230000000295 complement effect Effects 0.000 claims abstract description 3
- 239000000428 dust Substances 0.000 claims description 7
- 201000005569 Gout Diseases 0.000 claims description 5
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 3
- 239000012299 nitrogen atmosphere Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 244000257782 Ipomoea triloba Species 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Classifications
-
- 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
- F27D99/00—Subject matter not provided for in other groups of this subclass
- F27D99/0073—Seals
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/18—Bell-and-hopper arrangements
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/18—Bell-and-hopper arrangements
- C21B7/20—Bell-and-hopper arrangements with appliances for distributing the burden
-
- 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
- F27B1/00—Shaft or like vertical or substantially vertical furnaces
- F27B1/10—Details, accessories or equipment specially adapted for furnaces of these types
- F27B1/20—Arrangements of devices for charging
-
- 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
- F27D3/0032—Charging or loading melting furnaces with material in the solid state using an air-lock
Definitions
- the invention relates to a top seal for shaft furnaces, in particular blast furnaces, with a feed hopper, which is followed by a rotating rotating funnel, which is sealed off from the stationary parts.
- a further development of the McKee gout closure provides that the lower, large gout bell does not have to form a gas-tight seal, because the rotary distributor sealed with the bell is arranged in a tightly sealed envelope.
- a sealing device on rotatable top closures of blast furnaces with a pressure ring attached to the rotating funnel and a matching stationary, ring-shaped sealing compound is known, the sealing of the pressure ring and sealing compound being effected by spring force.
- adjustable springs are arranged in a gas-tightly attached ring housing on the top of the top. press the mass against the slip ring rotating with the rotating funnel.
- the contact pressure of the springs is variably adjustable by means of a tensioning device consisting of an adjustable tensioning screw.
- a rotating funnel which is driven by a toothed ring, is used in a bell closure to even out the material distribution.
- the interior of the rotating funnel is in the immediate vicinity of the furnace chamber, i.e. the chamber is exposed to the furnace atmosphere. For this reason, it is necessary to seal the rotating part of the funnel from the environment. Sealing is carried out by means of a labyrinth seal using spring-loaded graphite rings, preferably composed of segments by means of tongue and groove, which perform the sealing in an N2 atmosphere.
- the N2 atmosphere must be regulated in relation to the furnace pressure so that there is always a slight overpressure in relation to the furnace pressure. Nitrogen is also a gas that is very expensive.
- a sealing unit consisting of an adjustable flange which is arranged above the rotary funnel and which can be raised and lowered to the funnel flange and which has seals on the flange side and is formed with a compensator element in a bridging wall connecting the adjustable flange to the stationary part of the rotary funnel .
- the compensator element advantageously, for example, a loop-like band formation or the like, can be designed such that, for example, an axial movement of approximately 50 mm, a lateral movement of approximately 20 mm and an overpressure of 3.5 bar can be absorbed.
- the system can be controlled in such a way that the adjustment flange is raised from the receiving funnel into the "Little Bell" room during the material feed. After the material feed, the rotating funnel can rotate for the purpose of material distribution. Before the "small bell" room is emptied into the "large bell” room, the adjustment flange is lowered so that the parts are sealed from one another, which makes it possible to carry out the necessary pressure compensation.
- the deformable compensator element that allows the play of movement is also able to compensate for a possible offset with respect to the axis of rotation. Furthermore, no nitrogen atmosphere is required to create a slight overpressure compared to the furnace pressure.
- the entire sealing unit or the sealing system is easily accessible from the outside and also enables assembly on site.
- lifting cylinders which are arranged on the periphery of the stationary part of the rotary funnel and are fastened there are connected to the adjusting flange.
- These hydraulic cylinders not only take on the lifting and lowering and thus the lifting of the adjustment flange during the material feed, but can at the same time exert a holding force that only needs to be so great that the sealing unit is prevented from lifting due to the force from the internal pressure of the shaft furnace.
- the adjusting flange carries two spaced-apart ring seals, of which the front ring seal adjacent to the axis of rotation of the rotating funnel is designed as a seal preventing dust from escaping when the adjusting flange is raised.
- the outer ring seal which is shifted towards the end face of the adjustment flange, is not effective in the raised position of the adjustment flange, ie it is not in engagement.
- the front ring seal which is closer to the rotary axis, prevents dust from escaping even when the adjustment flange is in the lifted operating position.
- the cylinders are moved so that the parts are sealed to carry out the necessary pressure equalization. Dust particles from the sealing edges of the ring seal are gripped and displaced by the ring seal in the course of the adjusting flange which approaches the funnel flange increasingly as the lowering, so that a virtually dust-free sealing surface is created.
- One embodiment of the invention provides that a stop is arranged between the rotating funnel flange and the adjusting flange.
- This stop which is preferably fixed on the rotating funnel flange, prevents the seals from being pressed inadmissibly.
- the adjustability makes it possible to compensate for possible seal wear.
- the compensator element is connected upstream of the furnace or funnel interior with a sliding apron which is fixed only at one end to the bridging wall and loosely abuts the bridging wall at its other end.
- a reinforcing apron is thus positioned in front of the compensator element in the direction of the pressure area, which, due to its one-sided loose design, slides with this free end over the bridging wall during lifting movements of the adjustment flange.
- FIG. 1 shows in detail a partial view of a sealing unit of a shaft furnace (not shown), shown schematically when the furnace pressure is present;
- FIG. 2 shows a representation corresponding to the sectioned partial view according to FIG. 1, with the sealing system being ventilated for supplying material under the prevailing ambient pressure.
- a sealing unit 5 is arranged in the space between the rotating funnel 2 and the stationary, load-bearing part 3. This comprises, on the one hand, an above and above the rotary funnel flange 6 and to this complementary lifting and lowering adjustable flange 7, which has on its underside two concentrically spaced ring seals 8, 9, of which the ring axis 8 closer to the axis of rotation as a dust seal with a bristle facing the rotating funnel flange 6 10 is formed.
- a plurality of lifting cylinders 11 are attached distributed over the circumference of the stationary part 3 of the rotary funnel 4 and connected to the adjusting flange 7 at their other end.
- a loop-like compensator element 13 is formed in a cylindrical jacket-shaped bridging wall 12 connecting the adjusting flange 7 to the stationary part 3.
- This is to the furnace or funnel inside Ren 14 upstream of a sliding apron 15, which is fixed at its upper end facing the stationary part 3 on the bridging wall 12, while its opposite end is designed to be freely movable and during adjustment movements of the lifting cylinder 1 1 in the direction of the double arrow on the corresponding one Section of the lower part of the bridging wall 12 slides.
- Fig. 1 shows the operating phase before emptying the material fed into the rotary hopper 12, in which the lifting cylinders 1 1 have lowered the adjustment flange 7 so that the parts are sealed off from one another in order to be able to carry out a necessary pressure equalization.
- the end position of the positioning movement is defined by an adjustable or interchangeable stop 16, which at the same time prevents the ring seals 8 and 9 from being pressed inadmissibly.
- the sealing edges of the rear ring seal 9 lie snugly on the counter surface of the rotating funnel flange 6, dust particles lying on the counter surface being detected and displaced by the sealing edge when the adjustment flange 7 is lowered; the same effect occurs when the bristle 10 of the ring seal 8 closer to the axis of rotation is deformed.
- the adjusting flange 7 carrying the seal 8, 9 is shown in FIG. 2 by means of the lifting cylinder 11 Position raised.
- the loop-like compensator element 13 makes it possible to compensate for the play of movement that occurs due to the cylinder adjustments.
- the compensator element 13 can compensate for both an axial movement and a lateral movement and can also absorb a certain excess pressure.
- the sealing unit 5 including the compensator element 13 one is thus able in a simple manner in spite of that for the rotation of the rotary funnel 2 required movement play ensures reliable sealing, the entire unit being freely accessible and thus easy to maintain and install.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- General Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Blast Furnaces (AREA)
- Furnace Charging Or Discharging (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19920002A DE19920002A1 (de) | 1999-05-03 | 1999-05-03 | Gichtverschluß für Schachtöfen, insbesondere Hochöfen mit einem Guteinlauftrichter |
| DE19920002 | 1999-05-03 | ||
| PCT/EP2000/003722 WO2000066794A1 (de) | 1999-05-03 | 2000-04-26 | Gichtverschluss für schachtöfen, insbesondere hochöfen mit einen guteinlauftrichter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1190103A1 true EP1190103A1 (de) | 2002-03-27 |
| EP1190103B1 EP1190103B1 (de) | 2003-07-23 |
Family
ID=7906606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00927051A Expired - Lifetime EP1190103B1 (de) | 1999-05-03 | 2000-04-26 | Gichtverschluss für schachtöfen, insbesondere hochöfen mit einen guteinlauftrichter |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US6685878B1 (de) |
| EP (1) | EP1190103B1 (de) |
| AT (1) | ATE245705T1 (de) |
| AU (1) | AU4556600A (de) |
| BR (1) | BR0010178A (de) |
| CA (1) | CA2370157A1 (de) |
| DE (2) | DE19920002A1 (de) |
| MX (1) | MXPA01010838A (de) |
| PL (1) | PL350653A1 (de) |
| RU (1) | RU2241044C2 (de) |
| WO (1) | WO2000066794A1 (de) |
| ZA (1) | ZA200108889B (de) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7418664B2 (en) * | 2002-04-03 | 2008-08-26 | Microsoft Corporation | Application sharing single document sharing |
| US20070040501A1 (en) | 2005-08-18 | 2007-02-22 | Aitken Bruce G | Method for inhibiting oxygen and moisture degradation of a device and the resulting device |
| US8115326B2 (en) | 2006-11-30 | 2012-02-14 | Corning Incorporated | Flexible substrates having a thin-film barrier |
| DE102007006795B3 (de) * | 2007-02-12 | 2008-04-03 | Takraf Gmbh | Einrichtung zur staubfreien Schüttgutübergabe |
| LU91885B1 (en) * | 2011-10-11 | 2013-04-12 | Wurth Paul Sa | Blast furnace installation |
| CN106017119B (zh) * | 2016-07-14 | 2023-11-10 | 重庆赛迪热工环保工程技术有限公司 | 一种炉体孔洞密封装置 |
| CN107449282B (zh) * | 2017-08-31 | 2023-06-16 | 中冶华天工程技术有限公司 | 水密封环冷机端部密封装置 |
| CN114774604B (zh) * | 2022-05-24 | 2023-09-22 | 宝武集团鄂城钢铁有限公司 | 一种炉顶设备连接过渡密封装置和高炉炉顶装料设备 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB258631A (en) | 1925-03-30 | 1926-09-30 | Gaston De Bethune | Improvements in or relating to packing devices for furnace joints |
| DE3030541C2 (de) | 1980-08-13 | 1988-09-08 | Rudolf P. 7000 Stuttgart Fritsch | Vorrichtung zur kontinuierlichen Herstellung hochmolekularer Polymerer |
| JPS6057487B2 (ja) * | 1981-02-09 | 1985-12-16 | 住友重機械工業株式会社 | 炉口シ−ル装置 |
| JPS6162782A (ja) | 1984-09-03 | 1986-03-31 | 新日本製鐵株式会社 | ベルレス炉頂装入装置における旋回コ−ン部構造 |
| DE3632724A1 (de) * | 1986-09-26 | 1988-04-07 | Gutehoffnungshuette Man | Doppelschleusen-gichtverschluss fuer schachtoefen, insbesondere hochoefen |
| FR2653867B1 (fr) | 1989-10-31 | 1992-08-21 | France Rayonnement | Ensemble de sechage par u.v. a plusieurs emetteurs. |
| DE19709329C2 (de) * | 1997-03-07 | 2001-03-08 | Sms Demag Ag | Glockenloser Gichtverschluß für Schachtöfen, insbesondere Hochöfen |
-
1999
- 1999-05-03 DE DE19920002A patent/DE19920002A1/de not_active Withdrawn
-
2000
- 2000-04-26 WO PCT/EP2000/003722 patent/WO2000066794A1/de not_active Ceased
- 2000-04-26 RU RU2001132329/02A patent/RU2241044C2/ru not_active IP Right Cessation
- 2000-04-26 PL PL00350653A patent/PL350653A1/xx unknown
- 2000-04-26 BR BR0010178-8A patent/BR0010178A/pt active Search and Examination
- 2000-04-26 MX MXPA01010838A patent/MXPA01010838A/es unknown
- 2000-04-26 AU AU45566/00A patent/AU4556600A/en not_active Abandoned
- 2000-04-26 DE DE50003016T patent/DE50003016D1/de not_active Expired - Fee Related
- 2000-04-26 US US09/980,914 patent/US6685878B1/en not_active Expired - Fee Related
- 2000-04-26 AT AT00927051T patent/ATE245705T1/de not_active IP Right Cessation
- 2000-04-26 CA CA002370157A patent/CA2370157A1/en not_active Abandoned
- 2000-04-26 EP EP00927051A patent/EP1190103B1/de not_active Expired - Lifetime
-
2001
- 2001-10-29 ZA ZA200108889A patent/ZA200108889B/xx unknown
Non-Patent Citations (1)
| Title |
|---|
| See references of WO0066794A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2370157A1 (en) | 2000-11-09 |
| AU4556600A (en) | 2000-11-17 |
| MXPA01010838A (es) | 2002-07-30 |
| DE19920002A1 (de) | 2000-11-09 |
| US6685878B1 (en) | 2004-02-03 |
| PL350653A1 (en) | 2003-01-27 |
| WO2000066794A1 (de) | 2000-11-09 |
| BR0010178A (pt) | 2002-01-15 |
| DE50003016D1 (de) | 2003-08-28 |
| RU2241044C2 (ru) | 2004-11-27 |
| ATE245705T1 (de) | 2003-08-15 |
| ZA200108889B (en) | 2002-10-30 |
| EP1190103B1 (de) | 2003-07-23 |
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