US3889791A - Charge distribution chute - Google Patents

Charge distribution chute Download PDF

Info

Publication number
US3889791A
US3889791A US374049A US37404973A US3889791A US 3889791 A US3889791 A US 3889791A US 374049 A US374049 A US 374049A US 37404973 A US37404973 A US 37404973A US 3889791 A US3889791 A US 3889791A
Authority
US
United States
Prior art keywords
wear
resistant
members
chute
resistant members
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 - Lifetime
Application number
US374049A
Other languages
English (en)
Inventor
Edouard Legille
Rene N Mahr
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.)
Paul Wurth SA
Original Assignee
Anciens Etablissements Paul Wurth SA
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 Anciens Etablissements Paul Wurth SA filed Critical Anciens Etablissements Paul Wurth SA
Application granted granted Critical
Publication of US3889791A publication Critical patent/US3889791A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • C21B7/20—Bell-and-hopper arrangements with appliances for distributing the burden

Definitions

  • ABSTRACT The resistance to erosion of a charge distribution chute for use within a blast furnace is improved by a multiplayer construction comprising a channeldefining support member and, mounted thereon, a plurality of overlapping wear-resistant members.
  • the wear-resistant members are themselves of multilayer construction and consist of carrier plates with a layer of abrasion resistant material affixed thereto.
  • the present invention relates to enhancement of the life of members which are subjected to erosion as a result of the movement of solid material thereover. More specifically, this invention is directed to distribution chutes for use in the charging of furnaces, for example blast furnaces, and particularly to wear-resistant coatings for such chutes. Accordingly, the general objects of the present invention are to provide novel and improved methods and apparatus of such character.
  • the charge material is delivered via the central feed spout to a rotary distribution chute which is capable of pitch angle adjustment independently of the rotation thereof; the distribution chute being arranged centrally in the blast furnace throat or port.
  • the charge material or burden will consist of ore, coke, cinders, etc.; the charge material thus contains hard, sharp-edged materials. Sliding frictional contact between such materials and surfaces of the charging installation impose very severe demands on the thus contacted components of the charging installation.
  • the distribution chute of a charging installation of the type disclosed in referenced U.S. Pat. No. 3,693,812 is subjected to a very high degree of wear since the charge material exiting from the central feed spout is delivered to the chute and thereafter moves along the chute at the delivery speed and with a change of direction.
  • the present invention overcomes the above briefly discussed disadvantages by providing a novel member with enhanced resistance to wear resulting from sliding contact with irregularly shaped solid materials.
  • an improved charge distribution chute for a bell-less shaft furnace charging installation is provided.
  • a distribution chute in accordance with the present invention has an outer casing of heat-resistant steel and a cladding of wear-resistant material on the surfaces which are contacted by the sliding charge material.
  • a particularly unique feature of the present invention is the formation of the cladding from a plurality of individual wear-resistant members having approximately the same cross-sectional shape as the outer casing.
  • the wear-resistant members which define the cladding are removably attached to the outer casing and are arranged in the manner of scales or shingles so that, in the material flow direction, each lower wear-resistant member projects toward the discharge end of the chute relative to the adjacent upper wear-resistant member.
  • a distribution chute in accordance with the present invention has the shape of an upwardly open half-pipe through which the charge or burden being delivered into a furnace will pass.
  • the wearresistant members which comprise the cladding are designed so as to be interchangeable with one another.
  • FIG. 1 is a side elevation view of a distribution chute in accordance with the present invention.
  • FIG. 2 is a cross-sectional front elevation view of the chute of FIG. 1.
  • a charge distribution chute in accordance with the present invention is indicated generally at 2.
  • the chute 2 includes an outer discharge channel defining member 4 comprised of heat-resistant steel.
  • Channel defining member 4 has, at its upstream end, an impact member 6 which is engaged by shafts 8 and 10.
  • the shafts 8 and 10 serve to mount and retain the distribtuion chute in the drive mechanism therefore.
  • Member 6, being located at the upstream end of the chute, absorbs the impact of charge material exiting a feed spout.
  • Member 6 defines an upstream extension of the open-topped channel defined by member 4 and has higher side walls for engagement by shafts 8 and 10.
  • the inner or charge contacting portion of chute 2 is defined by a plurality of wear-resistant members which present exposed surfaces of abrasion-proof material.
  • the wear resistant members each comprise a carrier plate, for example plates 12 and 16, formed from thick walled heat-resistant steel sheeting. Layers l4 and 18 of non-abrasive hard material are welded to respective carrier plates 12 and 16.
  • the multilayer wear-resistant members are assembled so as to overlap one another in scale-like manner so that at any point along the chute 2 at least two wear-resistant members are superimposed and the lower wear-resistant member projects, relative to the upper wear-resistant member, in the downstream or material flow direction. This overlap- 3 ping relationship may most clearly be seen from FIG. 1.
  • the channel defining member 4 is provided, along its oppositely disposed upper edges, with apertures such as holes 20, and 20".
  • Member 6 is also provided with similar holes.
  • the individual wear resistant members, such as member 12-14 and 16-18, are detachably connected to channel defining members 4 and 6 by means of bolts or other suitable fasteners which pass through holes 20.
  • the wear-resistant members will all have approxi mately the same shape and thickness so that such members may be interchangeable with one another. As a result of this manner of construction only a limited number of replacement wear-resistant members are necessary and the replacement process is greatly facilitated. Only the terminal wear-resistant members, indicated at 22 and 24, are shorter than the remaining members in order that such terminal members do not project beyond the ends respectively of channel defining members 4 and 6.
  • the carrier plates such as plates 12 and 16, are rarely damaged in the present invention. Thus, when an abrasion-resistant layer becomes worn, the carrier plates may be reused by repair or replacement of the abrasive-resistant layer.
  • a charge distribution chute for use within a blast furnace comprising:
  • a rigid elongated support channel defining body comprised of heat resistant steel; and a plurality of wear-resistant members rigidly affixed to and detachable from the interior channel defin ing surface of said body, said wear-resistant members being individually affixed in overlapping relationship to said body only adjacent their respective upstream ends in the direction of charge material flow of said members, said wear-resistant members each including at least a first carrier plate comprised of heat-resistant steel and a layer of abrasion-resistant material affixed to the carrier plate on the material contacting side of the wearresistant member, said wear-resistant members being shaped to define a channel at least partly commensurate in shape with the channel defined by said body whereby material flowing along the chute will be contained by and in contact with said wear-resistant members to a preselected depth, at least two of said wear-resistant members being superimposed at all points along the channel defining body located downstream of the wear-resistant member positioned at the material receiving upstream end of the chute.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Blast Furnaces (AREA)
  • Chutes (AREA)
  • Furnace Charging Or Discharging (AREA)
US374049A 1972-07-07 1973-06-27 Charge distribution chute Expired - Lifetime US3889791A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU65680 1972-07-07

Publications (1)

Publication Number Publication Date
US3889791A true US3889791A (en) 1975-06-17

Family

ID=19727103

Family Applications (1)

Application Number Title Priority Date Filing Date
US374049A Expired - Lifetime US3889791A (en) 1972-07-07 1973-06-27 Charge distribution chute

Country Status (9)

Country Link
US (1) US3889791A (US20110232667A1-20110929-C00004.png)
JP (1) JPS5621802B2 (US20110232667A1-20110929-C00004.png)
AT (1) AT333192B (US20110232667A1-20110929-C00004.png)
BE (1) BE801932A (US20110232667A1-20110929-C00004.png)
DE (2) DE7318945U (US20110232667A1-20110929-C00004.png)
FR (1) FR2192174B1 (US20110232667A1-20110929-C00004.png)
GB (1) GB1419349A (US20110232667A1-20110929-C00004.png)
IT (1) IT989330B (US20110232667A1-20110929-C00004.png)
LU (1) LU65680A1 (US20110232667A1-20110929-C00004.png)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4186832A (en) * 1978-08-18 1980-02-05 Kelley Hugh D Conveyor for handling free-flowing material
US5513581A (en) * 1993-08-25 1996-05-07 Paul Wurth S.A. Distributor chute for bulk material
WO2011101313A1 (en) 2010-02-19 2011-08-25 Paul Wurth S.A. Distribution chute for a charging device of a metallurgical reactor
WO2023077934A1 (zh) * 2021-11-08 2023-05-11 湖南德尚源耐磨工业有限公司 大高炉扁平出口布料溜槽

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52141008U (US20110232667A1-20110929-C00004.png) * 1976-04-21 1977-10-26
JPS52149102U (US20110232667A1-20110929-C00004.png) * 1976-05-11 1977-11-11
JP5410065B2 (ja) * 2008-10-20 2014-02-05 日鉄住金ハード株式会社 搬送用構造体
JP5575222B2 (ja) 2010-02-25 2014-08-20 三菱重工業株式会社 重量物カセット移載装置及び移載方法
WO2012008000A1 (ja) * 2010-07-16 2012-01-19 日鉄ハード株式会社 搬送体及び分配シュート
DE102011051255A1 (de) 2011-06-22 2012-12-27 Z & J Technologies Gmbh Materialführungs- oder Aufnahmevorrichtungen für eine Beschickung eines Hochofens mit Material

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US362793A (en) * 1887-05-10 Heater for coal-screens
US460489A (en) * 1891-09-29 Lining for grain-spouts
US840574A (en) * 1905-02-07 1907-01-08 Edwin H Messiter Furnace-charging apparatus.
US1523681A (en) * 1922-11-10 1925-01-20 Austin Adelbert Culvert lining
US1733573A (en) * 1925-06-26 1929-10-29 Allen Sherman Hoff Co Composite conduit and method of making the same
US1747752A (en) * 1929-01-28 1930-02-18 Brandt Automatic Cashier Co Coin runway
US1825678A (en) * 1928-05-07 1931-10-06 Thomas G Mcclatchey Cylinder lining
US2530320A (en) * 1948-05-22 1950-11-14 Standard Oil Dev Co Corrosion resistant liner materials and method of making the same
US2731466A (en) * 1951-11-26 1956-01-17 Phillips Petroleum Co Quench section for carbon black production furnace
US3379219A (en) * 1965-07-06 1968-04-23 Carl R. Schuh Elevator spout construction and method of making same
US3693812A (en) * 1969-07-31 1972-09-26 Wurth Anciens Ets Paul Furnace charging apparatus

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE935059C (de) * 1954-08-01 1955-11-10 Gewerk Eisenhuette Westfalia Wendelrutsche mit einer als Schleissschutz dienenden Abdeckung

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US362793A (en) * 1887-05-10 Heater for coal-screens
US460489A (en) * 1891-09-29 Lining for grain-spouts
US840574A (en) * 1905-02-07 1907-01-08 Edwin H Messiter Furnace-charging apparatus.
US1523681A (en) * 1922-11-10 1925-01-20 Austin Adelbert Culvert lining
US1733573A (en) * 1925-06-26 1929-10-29 Allen Sherman Hoff Co Composite conduit and method of making the same
US1825678A (en) * 1928-05-07 1931-10-06 Thomas G Mcclatchey Cylinder lining
US1747752A (en) * 1929-01-28 1930-02-18 Brandt Automatic Cashier Co Coin runway
US2530320A (en) * 1948-05-22 1950-11-14 Standard Oil Dev Co Corrosion resistant liner materials and method of making the same
US2731466A (en) * 1951-11-26 1956-01-17 Phillips Petroleum Co Quench section for carbon black production furnace
US3379219A (en) * 1965-07-06 1968-04-23 Carl R. Schuh Elevator spout construction and method of making same
US3693812A (en) * 1969-07-31 1972-09-26 Wurth Anciens Ets Paul Furnace charging apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4186832A (en) * 1978-08-18 1980-02-05 Kelley Hugh D Conveyor for handling free-flowing material
US5513581A (en) * 1993-08-25 1996-05-07 Paul Wurth S.A. Distributor chute for bulk material
WO2011101313A1 (en) 2010-02-19 2011-08-25 Paul Wurth S.A. Distribution chute for a charging device of a metallurgical reactor
WO2023077934A1 (zh) * 2021-11-08 2023-05-11 湖南德尚源耐磨工业有限公司 大高炉扁平出口布料溜槽

Also Published As

Publication number Publication date
JPS5621802B2 (US20110232667A1-20110929-C00004.png) 1981-05-21
GB1419349A (en) 1975-12-31
BE801932A (fr) 1973-11-05
JPS4943808A (US20110232667A1-20110929-C00004.png) 1974-04-25
ATA270273A (de) 1976-02-15
DE2325531C3 (de) 1981-10-08
LU65680A1 (US20110232667A1-20110929-C00004.png) 1972-10-30
DE2325531A1 (de) 1974-01-24
FR2192174A1 (US20110232667A1-20110929-C00004.png) 1974-02-08
FR2192174B1 (US20110232667A1-20110929-C00004.png) 1978-05-26
AT333192B (de) 1976-11-10
IT989330B (it) 1975-05-20
DE2325531B2 (de) 1981-01-15
DE7318945U (de) 1978-05-03

Similar Documents

Publication Publication Date Title
US3889791A (en) Charge distribution chute
CA1064699A (en) Supply of charge material to shaft furnaces
US4143777A (en) Blast furnace charging device
US2598931A (en) Clinker cooler
US3054497A (en) Rotary feeder table
US4949940A (en) Charging arrangement for shaft furnaces, in particular blast furnaces
KR100664004B1 (ko) 회전 상로용 원료 공급 장치
JP3975692B2 (ja) 高炉用ベルレス式炉頂装入装置の分配シュート構造
US2004381A (en) Manufacture of hydraulic cement and the like
US1287179A (en) Coke-wharf.
SU763472A1 (ru) Желоб загрузочного устройства шахтной печи
JP3777654B2 (ja) 炉頂装入装置
US2891321A (en) Apparatus for cooling cement clinkers
US4430056A (en) Pressure actuated seal for travelling grate
SU1303617A1 (ru) Загрузочное устройство доменной печи
US805737A (en) Apparatus for charging furnaces.
US630510A (en) Ore-roasting furnace.
US1999895A (en) Charging device
US1681535A (en) Apparatus for smelting
SU727690A1 (ru) Распределитель шихты загрузочного устройства доменной печи
US3358981A (en) Spillage chute for traveling grate machine
US785437A (en) Roasting-furnace.
JPH08350Y2 (ja) ホツパ−からの時系列排出粒度特性の調整装置
US1936374A (en) Blast furnace charging top
US2888156A (en) Automatic feed device for industrial apparatus