EP3938548B1 - Stichlochstopfkanone - Google Patents

Stichlochstopfkanone Download PDF

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Publication number
EP3938548B1
EP3938548B1 EP19711077.8A EP19711077A EP3938548B1 EP 3938548 B1 EP3938548 B1 EP 3938548B1 EP 19711077 A EP19711077 A EP 19711077A EP 3938548 B1 EP3938548 B1 EP 3938548B1
Authority
EP
European Patent Office
Prior art keywords
joint
mouthpiece
nozzle part
material chamber
taphole
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.)
Active
Application number
EP19711077.8A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3938548A1 (de
Inventor
Franck MORELLATO
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TMT Tapping Measuring Technology SARL
Original Assignee
TMT Tapping Measuring Technology SARL
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by TMT Tapping Measuring Technology SARL filed Critical TMT Tapping Measuring Technology SARL
Publication of EP3938548A1 publication Critical patent/EP3938548A1/de
Application granted granted Critical
Publication of EP3938548B1 publication Critical patent/EP3938548B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/12—Opening or sealing the tap holes
    • C21B7/125—Refractory plugging mass
    • 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
    • F27D3/15—Tapping equipment; Equipment for removing or retaining slag
    • F27D3/1509—Tapping equipment
    • F27D3/1536—Devices for plugging tap holes, e.g. plugs stoppers
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/12—Opening or sealing the tap holes
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4653—Tapholes; Opening or plugging thereof
    • 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 peculiar to furnaces of these types
    • F27B1/21—Arrangements of devices for discharging

Definitions

  • the invention relates to a taphole gun with a material chamber for accommodating a volume of plugging compound and a mouthpiece for attachment to a taphole, the mouthpiece being connected to the material chamber or a nozzle part arranged on the material chamber by means of a detachable connecting device.
  • Taphole guns of the type mentioned above are used to close the tapholes of reduction or smelting furnaces, e.g. During the tamping operation, the taphole tamping gun is pressed against the kiln breast with great force by means of a pivoting device, with the pressing force being maintained until the plastic tamping mass pressed through the mouthpiece of the taphole tamping gun into the taphole opening of the kiln has hardened.
  • the stuffing compound is received in a material chamber of the taphole gun, which is regularly designed as a cylinder space, and is removed from the material chamber by means of a tamping piston is pressed through the mouthpiece of the taphole tamping gun into the taphole opening.
  • a regularly cone-shaped nozzle part can be arranged between the material chamber and the mouthpiece, which is interchangeably connected to the material chamber via a connecting device.
  • a further detachable connection device can be provided between the nozzle part and the mouthpiece, in which case the mouthpiece can also be connected directly to the material chamber in the case of smaller taphole guns whose material chamber has a comparatively small diameter, i.e. without an intermediate nozzle part, by means of a detachable connection device.
  • a taphole gun which has a nozzle part which is connected to the material chamber via a flange connection.
  • a further flange connection is provided in the known taphole gun between the nozzle part and the mouthpiece.
  • the flange connections connect the nozzle part to the material chamber and the nozzle part to the mouthpiece in a connection plane arranged perpendicular to the ejection direction, with two connecting bolts located opposite one another on the material chamber to form the flange connections, which are distributed over the circumference of the taphole tamping gun and each extend parallel to the ejection direction and the nozzle part as well as the Connect the nozzle part and the mouthpiece arranged flanges together.
  • the EP2264391 A1 also describes a taphole gun with the nozzle tip attached via a hinge connection.
  • the present invention is therefore based on the object of proposing a taphole gun that has a connecting device formed between the mouthpiece and the material chamber or between a nozzle part that may be arranged on the material chamber and the mouthpiece, which on the one hand provides a secure mechanical connection and on the other hand enables the mouthpiece or allows maintenance of the taphole cannon with comparatively little assembly effort.
  • the taphole gun according to the invention has the features of claim 1.
  • the connecting device between the mouthpiece and the material chamber or the mouthpiece and the nozzle part is designed as a hinged joint arrangement, the hinged joint arrangement having two hinged joints arranged opposite one another, each with a joint strap arrangement of the nozzle part and a joint strap arrangement of the mouthpiece the connection with the joint plate arrangements, the joint bolts can be removed, the joint bolts at least in sections having a wedge-shaped section in the direction of a joint axis, and one joint plate of each hinge joint is provided with a reveal section of a joint eye designed in a wedge-shaped manner in the direction of the joint axis for receiving the wedge section of the joint bolt.
  • a hinge joint arrangement designed in this way for the detachable connection of the mouthpiece to the material chamber or to the nozzle part enables the mouthpiece to be easily removed by removing the hinge bolts.
  • the hinge joint arrangement according to the invention enables the identical configuration of the two hinge joints arranged opposite one another.
  • the joint strap arrangements of the nozzle part each have two joint straps arranged at a vertical distance, between which a joint strap of the mouthpiece is arranged to form the hinge joint, which has the joint eye with the wedge-shaped reveal section.
  • axial engagement means between opposite axial connecting edges of the nozzle part and the mouthpiece designed so that a defined radial relative alignment of the nozzle part and the mouthpiece is given independently of the hinge joint arrangement.
  • the engagement device has an annular web formed on one connecting edge, which engages in an annular groove formed in a complementary manner on the other connecting edge, radial sealing is made possible at the same time.
  • the ring web preferably has a truncated cone-shaped cross section, so that a radial sealing force is also made possible at the same time as the axial sealing force.
  • FIG 1 shows a taphole gun 20, shown with its essential components, with a—as in particular from the illustration according to FIG 4 emerges - designed as a hollow cylinder material chamber 21, which serves to accommodate a stuffing compound, which is filled into the material chamber 21 via a filling opening not shown in detail here and compressed in the material chamber 21 by means of a piston 22 guided in the material chamber 21 and from a via a nozzle part 23 with the material chamber 21 in communication mouthpiece 24, which is formed independently of the nozzle part 23 in the case of the present embodiment of the taphole gun 20, can be output into a not shown here taphole of a furnace device.
  • a stuffing compound which is filled into the material chamber 21 via a filling opening not shown in detail here and compressed in the material chamber 21 by means of a piston 22 guided in the material chamber 21 and from a via a nozzle part 23 with the material chamber 21 in communication mouthpiece 24, which is formed independently of the nozzle part 23 in the case of the present embodiment of the taphole gun 20, can be output into a not shown here tap
  • the nozzle part 23 enables a reduction in the inner diameter of the taphole gun 20 required for the transition from the material chamber 21 to the mouthpiece 24 and is frustoconical for this purpose. in the present exemplary embodiment, in particular, it is designed obliquely in the shape of a truncated cone.
  • the connecting projection 30 of the nozzle part 23 is formed on an upper part 31 of the nozzle part 23 and the connecting projection 28 of the material chamber 21 is formed on a lower part 32 of the material chamber 21, so that the connecting projection 30 of the nozzle part 23 rests on the one formed on the material chamber 21 Connecting projection 28 rests, a radial form-fitting engagement being formed between the connecting projection 30 of the nozzle part 23 and a connecting edge section 33 on an upper part 34 of the material chamber 21 on the one hand and the connecting projection 28 of the material chamber 21 and a connecting edge section 35 on a lower part 36 of the nozzle part 23 on the other hand .
  • nozzle part 23 is on the one hand in a relative arrangement immediately before the production of the form-fitting engagement ( 6 ) and on the other hand in a relative arrangement immediately after the production of the form-fitting engagement ( 2 ) show, it is understandable that the nozzle part 23 is already under the action of gravity after the positive engagement has been produced secured in the connection to the material chamber 21 in its relative position.
  • a radially effective securing device 37 is provided in addition to the form-fitting engagement, which is attached to horizontal connecting edge sections 38, 39 ( 6 ) one bolt connection each 40, 41 ( 1 ) which connect two connecting straps 42 and 43 formed opposite one another on the connecting edge section 38 of the connecting projection 30 of the nozzle part 23 and on the connecting edge section 39 of the connecting projection 28 of the material chamber 21 by means of a threaded bolt not shown in detail here.
  • the connecting projections 28, 30 are therefore secured in their radial arrangement by the bolt connections 40, 41, so that compression forces occurring in the taphole tamping gun 20 cannot lead to the form-fitting engagement formed between the connecting projections 28, 30, which is used to accommodate the axial portion which serves to compress forces is released.
  • a ring segment web 45 ( 4 ) is formed, which extends into an annular web groove 47 ( figure 5 ) intervenes.
  • a ring segment web 49 is formed radially on the outside on the nozzle wall 29, which engages in a ring segment groove 51 formed on a connecting edge section 50 on the connecting projection 28 of the material chamber 21, radially on the inside on the chamber wall 27.
  • the radially inner annular segment groove 51 formed in the connecting projection 28 of the material chamber 21 extends over a circumferential angle > 180° in such a way that opposite groove ends 52, 53 of the annular segment groove 51 can be used to form vertical guides for the ends of the Ring segment web 45, which extend vertically accordingly, can serve during the production of the engagement.
  • the bolt connections 40, 41 are designed in such a way that a bolt connecting the connecting straps 42, 43 to one another in a force-fitting manner along a bolt axis 55, which is preferably designed as a threaded bolt 75, is protected by a protective device 56, which consists of protective webs 57 formed vertically on the connecting straps, 58 is formed, which at the same time allow a rigid design of the connecting straps 42, 43, is protected towards the mouthpiece 24 against external influences.
  • a shielding device 76 is arranged on the lower part 32 of the material chamber 21 or on the lower part 36 of the nozzle part 23 , in particular to protect against thermal radiation emitted from below the taphole tamping gun 20 against the taphole tamping gun 20 .
  • the mouthpiece 24 is designed as a component formed independently of the nozzle part 23, with a hinge joint arrangement 59 being provided for connecting the mouthpiece 24 to the nozzle part 23, which has two oppositely arranged hinge joints 60, 61, which each a joint plate arrangement 64 formed here from two joint plates 62, 63 arranged parallel to one another and in the present case only one joint plate 65 having joint plate arrangement 66 of the nozzle part 23, which are connected to one another via a joint pin 67.
  • the joint plate 65 arranged on the mouthpiece 24 has a reveal section 68 of a joint eye 69 which is wedge-shaped in the direction of a joint axis 77 and which forms a wedge section 70 ( 9 ) of the hinge pin 67 has a complementary wedge formation, such that when the hinge pin 67 is arranged in the hinge joints 60, 61, the hinge pin, as in 7 shown, the joint strap arrangement 64 of the nozzle part 63 connects to the joint strap 65 of the mouthpiece 24 in such a way that the wedge section 70 is arranged in the joint eye 69 of the joint strap 65 and is non-rotatably connected to the joint strap 65 .
  • both hinge joints 60, 61 arranged opposite one another are provided with the joint pin 67 to form the joint axis 77, so that the mouthpiece 24 is fixed in relation to the nozzle part 23 and, if necessary, can be inserted into the taphole with a feed movement of the taphole tamping gun 20.
  • the mouthpiece 24 can be swiveled open on one side about the hinge axis 77 formed by the hinge pin 67 remaining in the hinge joint 60 or 61, for example for maintenance purposes.
  • the mouthpiece 24 can be pivoted about a joint axis 77 either in one direction or the other.
  • an engagement device is formed between opposing axial connecting edges 71, 72 of the nozzle part 23 and the mouthpiece 24, which here consists of an annular web 73 formed on the connecting edge 71 of the nozzle part 23 on the one hand and an annular groove formed on the connecting edge 72 of the mouthpiece 24 74 on the other hand is formed and a radial sealing of the connection formed by the hinge joint arrangement 59 between the nozzle part 23 and the mouthpiece 24 is made possible.
  • the annular web 73 preferably has a truncated cone-shaped cross section which is designed to be complementary to the cross section of the annular groove 74 . Due to the wedge effect made possible between the reveal sections 68 of the joint straps 65 and the wedge sections 70 of the joint bolts 67, an axial sealing force acting between the nozzle part 23 and the mouthpiece 24 can be generated by inserting the joint bolts 67 into the joint eyes 69 of the joint straps 65, with which a effective sealing relative arrangement between the mouthpiece 24 and the nozzle part 23 can be achieved.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Coating Apparatus (AREA)
  • Nozzles (AREA)
  • Toys (AREA)
  • Blast Furnaces (AREA)
  • Furnace Charging Or Discharging (AREA)
EP19711077.8A 2019-03-13 2019-03-13 Stichlochstopfkanone Active EP3938548B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2019/056266 WO2020182304A1 (de) 2019-03-13 2019-03-13 Stichlochstopfkanone

Publications (2)

Publication Number Publication Date
EP3938548A1 EP3938548A1 (de) 2022-01-19
EP3938548B1 true EP3938548B1 (de) 2023-05-03

Family

ID=65767028

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19711077.8A Active EP3938548B1 (de) 2019-03-13 2019-03-13 Stichlochstopfkanone

Country Status (10)

Country Link
US (1) US20220205722A1 (ko)
EP (1) EP3938548B1 (ko)
JP (1) JP7146109B2 (ko)
KR (1) KR102570155B1 (ko)
CN (1) CN113574186A (ko)
BR (1) BR112021017134A2 (ko)
CA (1) CA3130480C (ko)
TW (1) TWI766247B (ko)
UA (1) UA126845C2 (ko)
WO (1) WO2020182304A1 (ko)

Family Cites Families (31)

* Cited by examiner, † Cited by third party
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US1774373A (en) * 1930-08-26 And alfred osolin
JPS4817207Y1 (ko) * 1968-12-28 1973-05-17
US3682456A (en) * 1970-10-21 1972-08-08 Anderson Constr Corp A E Metallurgical furnace with cartridge clay gun means
DE2402088C2 (de) * 1974-01-17 1982-11-25 Dango & Dienenthal, 5900 Siegen Stichlochstopfmaschine
NO132503C (ko) * 1974-04-02 1975-11-19 Elkem Spigerverket As
US4135705A (en) * 1975-07-24 1979-01-23 S.A. Des Anciens Etablissements Paul Wurth Taphole sealing apparatus
JPS6350860U (ko) * 1986-09-18 1988-04-06
LU87883A1 (fr) * 1991-01-30 1992-10-15 Wurth Paul Sa Canon a argile pour machine a boucher les trous de coulee de fours a cuve
LU88756A1 (de) * 1996-04-30 1997-10-30 Wurth Paul Sa Verfahren und Vorrichtung zum Verschliessen eines Abstichloches
JPH11158517A (ja) * 1997-12-01 1999-06-15 Sumitomo Metal Ind Ltd マッドガンの閉塞防止装置および閉塞防止法
DE19755932C1 (de) * 1997-12-17 1998-12-10 Dango & Dienenthal Maschbau Stichlochstopfmaschine für metallurgische Öfen
JP2001240907A (ja) * 2000-03-02 2001-09-04 Kawasaki Steel Corp マッドガン
AUPQ783100A0 (en) * 2000-05-30 2000-06-22 Technological Resources Pty Limited Apparatus for injecting solid particulate material into a vessel
KR100770317B1 (ko) * 2001-04-25 2007-10-26 주식회사 포스코 머드건 내부에 장치된 출선구 센터 표시장치
KR100416191B1 (ko) * 2001-05-23 2004-01-31 주식회사 주성 전로의 출강구 플러그
ITMI20050150U1 (it) * 2005-04-27 2006-10-28 Geco System Spa Manicotto per la protezione e irrobustimento di saldature testa-testa di tubi in materiale plastico
CN201261788Y (zh) * 2008-09-30 2009-06-24 戴光荣 一种新型泥炮炮嘴
PL2264391T3 (pl) 2009-06-20 2014-01-31 Tmt Tapping Measuring Tech Gmbh Zatykarka otworu spustowego pieca metalurgicznego
DE102010001038A1 (de) 2010-01-20 2011-07-21 TMT Tapping-Measuring-Technology GmbH, 57072 Stichlochstopfmaschinenkanone für metallurgische Öfen
JP5785838B2 (ja) * 2011-09-27 2015-09-30 新日鉄住金エンジニアリング株式会社 閉塞開孔方法および閉塞開孔装置
EP2587268A1 (en) * 2011-10-26 2013-05-01 LEM Intellectual Property SA Electrical current transducer
CN102690917A (zh) * 2012-06-21 2012-09-26 湖南金旺铋业股份有限公司 富氧熔炼熔池泥炮堵口机
JP2014080660A (ja) * 2012-10-17 2014-05-08 Nippon Steel & Sumikin Engineering Co Ltd 開孔閉塞装置
CN203247281U (zh) * 2013-05-09 2013-10-23 湖北福田液压气动股份有限公司 三连杆机构炼铁高炉出铁口堵口装置
CN203938680U (zh) 2014-05-29 2014-11-12 本钢板材股份有限公司 一种高炉三段炮头液压泥炮
CN204080002U (zh) * 2014-10-15 2015-01-07 武汉钢铁(集团)公司 高炉炉前液压炮大炮头组合式锲子
DE102016000071B3 (de) * 2016-01-07 2017-04-13 Daher Nuclear Technologies Gmbh Transportanordnung
CN105737614B (zh) * 2016-04-01 2018-06-19 中国恩菲工程技术有限公司 用于侧吹浸没燃烧熔池冶金炉的喷枪以及具有它的冶金炉
CN106914981A (zh) * 2017-03-12 2017-07-04 北京工业大学 炮泥制作堵塞一体机
CN108276011B (zh) * 2018-03-02 2020-11-24 徐州苏牌高温新材料有限公司 一种高炉出铁口堵塞炮泥及其制备方法
EP3938547B1 (de) * 2019-03-13 2023-02-15 Tmt - Tapping Measuring Technology Sàrl Stichlochstopfkanone

Also Published As

Publication number Publication date
CA3130480A1 (en) 2020-09-17
JP7146109B2 (ja) 2022-10-03
KR20210126048A (ko) 2021-10-19
WO2020182304A1 (de) 2020-09-17
CN113574186A (zh) 2021-10-29
UA126845C2 (uk) 2023-02-08
CA3130480C (en) 2023-09-19
WO2020182304A9 (de) 2021-08-19
US20220205722A1 (en) 2022-06-30
EP3938548A1 (de) 2022-01-19
BR112021017134A2 (pt) 2021-11-09
TW202040077A (zh) 2020-11-01
KR102570155B1 (ko) 2023-08-23
JP2022522754A (ja) 2022-04-20
TWI766247B (zh) 2022-06-01

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