US3921831A - Device for distributing raw materials into blast furnace - Google Patents

Device for distributing raw materials into blast furnace Download PDF

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Publication number
US3921831A
US3921831A US451672A US45167274A US3921831A US 3921831 A US3921831 A US 3921831A US 451672 A US451672 A US 451672A US 45167274 A US45167274 A US 45167274A US 3921831 A US3921831 A US 3921831A
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United States
Prior art keywords
chute
raw materials
rotary
distribution
distribution chute
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Expired - Lifetime
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US451672A
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English (en)
Inventor
Masaoki Takahashi
Makoto Nishinomiya
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IHI Corp
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Ishikawajima Harima Heavy Industries Co Ltd
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    • 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
    • F27D3/0033—Charging; Discharging; Manipulation of charge charging of particulate material
    • 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
    • F27D3/10—Charging directly from hoppers or shoots
    • F27D2003/105—Charging directly from hoppers or shoots using shutters

Definitions

  • ABSTRACT A device for charging and distributing raw materials into a blast furnace is disclosed in which a distribution chute suspended from a rotary chute is adapted to rotate in unison with the rotary chute and to be tilted when a control rod extending through the rotary chute is vertically lifted or lowered.
  • the pattern of distribu tion of raw materials may be arbitarily varied.
  • a mechanism for driving the charging device must be such that it may be inspected at any time in a simple manner.
  • the push rod and its associated parts are located outside of the inclined tray. That is. they are exposed to the high temperature gases in the blast furnace. Since the temperature of the blast gases reaches 600-700C. the push rod and its associated parts are subjected to the very severe thermal conditions for a long time, thus resulting in the breakdowns.
  • One of the objects of the present invention is therefore to provide a device for charging and distributing the stock or raw materials through a top into a blast furnace which device may completely eliminate the above and other defects encountered in the conventional devices.
  • FIG. I is a schematic view of a conventional bell type device for charging the raw materials through a top into a blast furnace;
  • FIG. 2 is a sectional view of a device for charging the raw materials into a blast furnace.
  • the charging device incorporating a raw material distributing device in accord with the present invention
  • FIG. 3 is a sectional view taken along the line III of FIG. 2;
  • FIG. 4 is a view of an arrangement for controlling the vertical movement of a flow-rate control cone
  • FIG. 5 is a perspective view of the raw material distributing device in accord with the present invention.
  • FIGS. 6(A) and 6(B) are views used for the explanation of the mode of operation of the conventional raw material distributing device.
  • FIG. 6(C) is a sectional view looking in the direction indicated by 6(C) in FIG. 6(A).
  • a conical bell b which also functions as a distributor and makes up a bell hopper with a bell cup c.
  • the raw materials stocked in the hopper is charged onto the stock level a when the bell b is opened downwardly.
  • the raw materials are distributed along the outer periphery of the bell b, they always from a conical pile of the same diameter in the stock portion. Furthermore. the prior art device has the defects that it cannot distribute the raw materials selectively in the circumferential and radial directions and that the quantity of raw materials to be charged and distributed into the blast furnace cannot be arbitarily controlled because no means for controlling the quantity of the raw materials is provided.
  • Some blast furnaces are provided with a raw material distributing device d in order to overcome the above problems.
  • the range over which are distributed the raw materials is limited so that even when the above auxiliary distributing devices are provided, the distribution of raw materials cannot be controlled in a satisfactory manner. Furthermore, because of the provision of the auxiliary distribution devices the installation costs of the blast furnaces are increased. Furthermore the maintenance becomes more complex and expensive.
  • a pair of vertical partition walls 3 have their side edges securely fixed to the inner wall of a main body ofa cylindrical rotary chute 2 symmetrically about the axis of the main body 2.
  • a cover 4 is fixed to the upper edges of the pair of partition walls 3. Therefore.
  • a chamber or space 5 is defined by the pair of par' tition walls 3, the inner wall of the cylindrical main body 2 and the cover 4, and no raw material passes through this space 5.
  • the raw material passages difmed between the pair of partition walls 3 and the inner surface of the cylindrical main body 2 are substantially semi-circular in cross section as best shown in FIG. 3 and are lined with liners 6 and 7 made of abrasive wear resisting material.
  • An inverted U-shaped opening 8 is formed through the cylindrical main body 2 at one end of the space 5.
  • the lower end of a rotary rod 9 is securely fixed to the cover 4.
  • a rotary chute I with the above construction is located coaxially of the blast furnace within a gas seal mantel 12 which in turn is joined to a top ring 11 at the top of a gas collection mantel I of the blast furnace.
  • the hollow rotary rod 9 is securely fixed to the cover 4 of the rotary chute 1 so that the latter is rotated about the axis of the blast furnace.
  • a guide track 13 into which is fitted a track 14 supported by a plurality of side rollers 15 disposed on the gas seal mantel so that the deviation of the rotary chute I during its rotation may be prevented.
  • a distribution chute I8 is detachably fixed to a U- shaped distribution chute support member 16 which is pivoted with pivot 17 to the lower outer side surface of the cylindrical main body 2 so that the angle of the distribution chute 18 with respect to the axis of the furnace may be varied.
  • the distribution chute 18 substantially U-shaped in cross section is lined with a liner [9 made of abrasive wear resisting material.
  • a pair of brackets 20 are extended from the upper inner surface of the distribution chute I8 within a pair of partition walls 21.
  • a plurality of lugs 22 are extended outwardly from the outer surface of the distribution chute l8 and engaged with the support member 16 with bolts and nuts 23 so that the distribution chute 18 may be securely held by the support member 16.
  • the raw materials dropped through the raw material passages of the rotary chute 1 into the distribution chute I8 may flow therethrough to be charged into and distributed in the furnace.
  • a link 25 is rotatably fixed to the brackets 20 with a shaft 24 and the other end is detachably pivoted to the lower end of a control rod 26 extending through the hollow rotary rod 9 and the cover 4 into the space 5. Therefore, in response to the vertical movement of the control rod 26, the support member 16 and hence the distribution chute 18 may be swung about the pivot pins 17. Furthermore, when the rotary rod 9 is rotated, the rotary chute l is rotated so that the distribution chute I8 may be also rotated about the axis of the furnace. The open bottom of the space 5 is covered by the distribution chute 18 which functions as a shield plate.
  • projections 28 are extended from the inner side edges of the distribution chute 18.
  • the projections 28 also serve as a guides when the distribution chute 18 is to be fixed to or detached from the support member 16.
  • the connection between the lower end of the control rod 26 and the other end of the link 25 may be disconnected within the space 5 in the rotary chute 1.
  • the distribution chute 18 When the distribution chute 18 is detached from the support member 16, they may be removed outside of the furnace in a simple manner through an opening formed through the gas seal mantel 12.
  • a fixed or stationary chute 31 in communication with a plurality of air-tight hoppers is installed above the gas seal mantel l2 eccentrically of the axis of the furnace.
  • the rotary rod 9 is extended upwardly through a cover 32 of the stationary chute 31, and a gear 33 fixed at the upper end of the rotary rod 9 is in mesh with an idle gear 36 in mesh with a pinion drivingly coupled to a hydraulic motor (not shown) so that the rotary rod 9 may be rotated by the hydraulic motor.
  • the gear 33 carried by the rotary rod 9 is supported by a rotary 4 bearing 34 which in turn is fixed upon the chute cover 32.
  • the upper end of the control rod 26 extending through the hollow rotary rod 9 is rotatably supported by a bearing 37 which in turn is fixed to the hopper 33.
  • the bearing 37 is coupled to a driving device such as a hydraulic cylinder 38 installed upon the hopper 30 so that the control rod 26 may be vertically moved within the hollow rotary rod 9 by the hydraulic cylinder 38.
  • Seal means 39 and 40 are interposed between the hollow rotary rod 9 and the control rod 26 and between the former and the chute cover 32 to provide the gastightness.
  • a flow-rate control cone 42 In an opening 41 of the fixed or stationary chute 31 immediately above the rotary chute l is disposed a flow-rate control cone 42 so as to be vertically movable coaxially of the axis of the furnace.
  • the control cone 42 is vertically moved so as to control the space between the cone 42 and the opening 41 of the stationary chute 31 so that the flow rate of raw materials charged into the rotary chute 1 may be controlled.
  • a hollow elevation rod 43 fixed to the flow-rate control cone 42 coaxially thereof is operatively coupled through horizontal rods 44 and 44 to vertical rods 45 and 45'.
  • the rod 45 is coupled to a hydraulic cylinder 46 installed outside of the furnace so that the vertical movement of the flow-rate control cone 42 may be controlled by the hydraulic cylinder 46.
  • the elevating rod 43 is surrounded by a shielding 47 to prevent the rod from being directly exposed to the raw materials.
  • a bushing 48 is interposed between the rotary rod 9 and the control rod 26 to permit the latter to move vertically within the hollow rotary rod 9 and to prevent rotation of the rod 26 within the rod 9.
  • Reference numeral 49 designates a level of stock of raw materials.
  • a joint 50 of the two sections of the rotary rod 9 may be disconnected so that the rotary chute may be removed out of the furnace through the manhole 29.
  • the inclined surface of the stationary chute 31 is lined with a liner 5! made of abrasive wear resisting material.
  • a gas seal valve 52 at the bottom of the hopper 30 not only functions as an on-off valve for charging the raw materials into the stationary chute 31 but also serves as a valve for gas-tightly sealing the chute 31.
  • a valve stem 53 extending through a rod seal 55 and wearing 56 and the chute 31 has its upper end fixed to the gas seal valve 52 and its lower end fixed to a hydraulic cylinder 54 so that the valve 52 may be vertically raised or lowered, thereby closing or opening the bottom of the hopper 30.
  • An annular seat ring is attached to the bottom opening of a hopper cone 57.
  • a rubber packing 59 is attached to the seat ring 58, which is detachably attached to the hopper cone 57.
  • the stationary hopper 30 is lined with a liner made of abrasive wear resisting material.
  • a gas seal valve 61 (See FIG. 4) is disposed at the upper opening of the hopper 30.
  • the hopper 30 and the stationary chute 31 are interconnected through an air-tight connection member provided with a manhole for inspection and replacement of the gas seal cone valve 52, the seat ring 58 and the rubber packing 59.
  • the connection member 62 also serves as a heat insulating member which prevents the adverse effect of the high temperature furnace gases upon the rubber packing 59 when the flow-rate control cone 42 is closed completely.
  • the distribution chute 18 is caused to swing about the pivot pins 17 because the lower end of the control rod 26 is connected through the link 25 to the brackets of the distribution chute 18.
  • the angle of the distribution chute 18 with respect to the axis of the shaft may be varied. More particularly when the control rod 26 is lifted, the right end of the distribution chute 18 is lifted by the link so that the support member 16 is caused to swing about the pivot pins 17 in the clockwise direction in FIG. 2. Therefore the distribution chute 18 is inclined in the direction indicated by the arrow x.
  • the support member 16 is caused to swing in the counterclockwise direction so that the distribution chute 18 is inclined in the direction indicated by the arrow y in FIG. 2. Since the opening 8 is formed through the cylindrical main body 2 of the rotary chute 1, the link 25, the partition plates 21 and the brackets 20 may be freely displaced in this opening 8.
  • the tilting and rotation of the distribution chute 18 may be simultaneously or individually made in the manner described above so that the lower end that is the discharge end of the distribution chute 18 may be displaced radially and circumferentially above the stock level area 49.
  • the raw materials to be charged into the blast furnace are led from the hopper through the stationary chute 31 and the flow-rate control cone 42 into the rotary chute l.
  • the raw materials are led through the semicircular passages of the rotary chute 1 into the distribution chute 18, from which the raw materials are distributed on the stock level surface depending upon the rotation and inclination of the distribution chute 18.
  • the raw materials are piled in the form ofa circle spaced apart from the axis of the furnace by the same radius.
  • the radius of the ring of pile of raw materials may be selectable by varying the angle of inclination of the distribution chute 18.
  • the raw materials When the angle of inclination of the distribution chute 18 is varied while it is rotated, the raw materials may be piled or distributed in the form of a helix. When the rate ofchange in angle of inclination of the distribution chute 18 is slow and the opening of the flow-rate control cone 42 is suitably controlled, the raw materials may be flatly distributed on the stock level area 49. That is, the distribution device in accord with the present invention may accomplish the so-called flat chargmg.
  • the raw materials When the distribution chute 18 is inclined or swung while the rotation thereof is stopped, the raw materials may be distributed radially along a straight line from the axis of the furnace.
  • the rotation of the distribution chute 18 is stopped at one point of a circle and the angle of inclination of the distribution chute 18 is suitably selected, the raw materials may be charged at any desired spot on the stock level area 49. That is. the spot charging is possible.
  • the raw materials are prevented from passing through the space 5 in the rotary chute l, the connection between the lower end of the control rod 26 and the upper end of the link 25 is not directly exposed to the raw materials so that the abrasive wear may be prevented. Furthermore, the raw materials falling onto the distribution chute 18 through the raw material passages in the rotary chute 1 are prevented from intruding into the joint between the lower end of the link 25 and the brackets 20 by the pair of partition members 21 so that the damage to the connection may be also prevented.
  • the distribution chute 18 is normally maintained at an angle relative to the axis of the blast furnace when the raw materials are distributed, and it is very rare that the distribution chute 18 is held vertically. Therefore, unless the distribution chute is held vertically, it serves as a shield to the space 5 within the rotary chute 1 so that the link 25 and its joint to the lower end of the control rod 26 may be prevented from being directly exposed to the high temperature furnace gases.
  • the charging of raw materials into the hopper 30 is carried out according to a predetermined schedule. That is, the gas seal valve 61 (See FIG. 4) is wide opened at a predetermined time so that the raw materials lifted up to the top of the blast furnace by a belt conveyor or skip may be charged into the hopper 30. While the raw materials are being charged, the gas seal valve 61 is retracted away from the falling path of the raw materials so that the abrasive wear of the gas seal valve 61 may be prevented. After the raw materials are charged into the hopper 30, the gas seal valve 61 is completely closed, and the pressure in the hopper 30 is raised to a predetermined level by a pressure equalizing device (not shown). Thereafter the gas seal cone valve 52 is wide opened so that the raw materials in the hopper 30 drops into the stationary chute 31 and are piled upon the flow-rate control cone 42.
  • particle size, viscosity, the shapes and so on are widely different from iron ores and coke so that the pattern of pile is different between the iron ores and coke.
  • various types of iron ores such as pellets. sintcred ores and unprocessed ores are used. and the ratio of mixture thereof is different. Therefore, the pattern of pile of raw materials different from one stock charge to another if the flow-rate control cone is not provided. Thus. it is required to control the flow rate of the raw materials charged into the furnace depending upon the types, kinds. particle sizes. mixing ratios and so on of the raw materials.
  • FIG. 6 A cut gate 102 is disposed at the discharge port at the bottom of a hopper 101 so as to control the flow rate of raw materials to be charged into the furnace.
  • the raw materials discharged from one hopper 101 drops in a raw material guide 104 along the inner wall 103 opposite to the hopper 101 as shown in FIG. 6(C). Therefore. the cross sectional area of the raw materials falling down the guide 104 is less than one third of the cross sectional area of the guide 104.
  • FIGS. 6(A) and 6(8) the distance over which the raw materials slide in the distribution chute 105 changes. That is. when the distribution chute 105 is in the position shown in FIG.
  • the distance L is longer than the distance L when the distribution chute 105 is located in the position shown in FIG. 6(B). It is well known in the art that the distance over which the raw materials slide in the distribution chute 105 has a considerable effect upon the distance R, or R between the axis of the blast furnace and the position where the raw materials drop. Therefore, the pile of raw materials is not a true circle. This tendency is inherent to each hopper. In general the raw material charging device is provided with two hoppers as shown in FIG. 6, and coke is stored in one hopper while iron ores are stored in the other hopper. As a result they cannot be distributed in the same pattern at all so that the furnace operation is adversely affected.
  • the raw materials Since the raw materials enters into the guide I04 from the portion away from the axis thereof and they have the velocity in one direction at the inlet port of the guide 104, the raw materials flow in the guide 104 eccentrically thereof. This problem cannot be overcome even when the opening degree of the cut gate 102 is controlled. This is the reason why the flow-rate control cone 42 is disposed in the bottom opening 41 of the stationary chute 31. Therefore, the velocity of the raw materials discharged onto the flow-rate control cone 42 from the hopper 30 which is installed eccentrically of the axis of the blast furnace. becomes zero so that the effect of the velocity of the raw materials may be eliminated. In order to take the full advantage of the flowrate control cone. it is preferable to open the cone 42 after the raw materials have been completely piled upon the cone 42.
  • the position of the flowrate control cone 42 with respect to the bottom opening 41 of the stationary chute 31 may be arbitarily selected because of the reason described above.
  • the cone 42 is so disposed as to move away from the opening 41 downwardly or to pass through the opening vertically.
  • the hydraulic cylinder 46 is actuated to vertically move the flow-rate control cone 42 through levers 44 and 44 and the elevating rod 43 so as to vary the spacing between the opening 41 and the cone 42, thereby control- 8 ling the flow-rate of raw materials charged into the rotary chute I.
  • the control rod 26 is lifted so that the distribution chute I8 is held upright as indicated by the tow-dot lines in FIG. 2. Thereafter, the operators disconnect the joint that is, the bolts and nuts 23 between the distribution chute l8 and its support member 16 through the manhole 29.
  • the control rod 26 is lowered so that the distribution chute 18 may be held in the position indicated by the solid lines in FIG. 2, and the support member 16 is fixed to the distribution chute I or gas seal mantel 12.
  • the joint between the lower end of the control rod 26 and the line 25 is released. Then. the distribution chute 18 may be removed out of the blast furnace through the manhole 29 as indicated by the imaginary lines in FIG. 2.
  • the support member 16 serves as a guide.
  • the above steps may be reversed.
  • the replacement of the distribution chute 18 may be carried out from the outside of the blast furnace.
  • the replacement of the link 25 may be carried out in manner substantially similar to that described above.
  • the distribution chute 18 To replace the rotary chute 1, the distribution chute 18 must be removed out of the furnace in the manner described above. Thereafter the control rod 26 is lifted until a link eye 27 is lifted slightly above the joint of the hollow rotary rod 9. Next the support member 16 is held upright as indicated by the imaginary lines in FIG. 2 and is fixed to the rotary chute l with bolts and nuts. Thereafter, a rotary chute support beam is inserted into the gas seal mantel 12 through the manhole 29 to support the rotary chute l and the support member 16 while the joint 50 of the rotary rod 9 is released. Then, the rotary chute 1 may be removed out of the blast furnace along the support beam through the manhole 29. To mount a new rotary chute 1, the above steps are reversed. Thus. the replacement of the rotary distribution chute I may be also accomplished from the outside of the blast furnace.
  • the function of the rotary chute l is to guide the raw materials when they are dropped onto the distribution chute so that the diameter of the rotary distribution chute I may be small.
  • the diameter of the gas seal mantel may be made small so that the replacement of the rotary and distribution chutes l and 18 may be accomplished in the manners described above through the manhole 29 of the gas seal mantel 12.
  • any other suitable means may be used as far as the smooth rotation of the rotary chute 1.
  • a plurality of supporting rollers may be disposed within the gas seal mantel 12 so as to support the distribution chute 18, the support member 16, and the rotary chute 1 so that the rotary bearing 34 may not support them but may support only the rotary rod.
  • the joint of the rotary rod 9 may be a spline joint so that the two sections of the rotary rod 9 may be rotated in unison in the same direction and that they may be released from each other in the vertical direction in a simple manner. Therefore. the disassembly of the rotary rod 9 may be much facilitated when the rotary chute 1 must be replaced.
  • a load cell instead of a load cell.
  • a plurality of photoelectric cells may be positioned in suitably spaced apart relation in the vertical direction within the hopper 30 so that the volume of raw materials charged into the hopper 30 may be detected.
  • the interlocked control of the gas seal valves 6] and the gas seal valve 52 may be effected. Therefore.
  • the damages to the valve seats by the raw materials may be prevented. Furthermore. the complex construction using the elastic pipe or pipes when the load cell is used may be much simplified. be cause the elastic pipe or pipes may be eliminated. It is also possible to extend the elevating rod 43 of the flowrate control cone 42 coaxially of the axis of the furnace through the stationary chute cover 32 and to connect it to a hydraulic cylinder installed outside of the blast furnace. In this case, rod seal means are interposed between the stationary chute over 32 and the extended elevating rod 43 and between the rod 43 and the hollow rotary rod 9.
  • the raw material distribution pattern may be varied arbitrarily. and the raw materials may be charged at any place between the axis of the blast furnace and the shell.
  • the lower end of the control rod is disposed within the space in the rotary chute which will not permit the passage of raw materials so that the lower end is prevented from being damaged by the raw materials.
  • the number of parts disposed within the blast furnace is very few. That is, only the joints and rods are disposed in the furnace. Therefore, the operation in the high temperature furnace gases reaching higher than 600C is very reliable. Furthermore. the joints are so disposed as to be prevented from being directly exposed to and damaged by the raw materials.
  • a spreader assembly for distributing raw material into the top of a blast furnace having a fixed distribution chute. comprising a rotary. cylindrical chute into which the raw material is introduced from said fixed chute. a pair of vertical partition walls disposed within the rotary chute, the side edges of the walls being fixed to the inner wall of said chute. a cover fixed to the upper edges of the pair of partition walls. said partition walls and cover defining a chamber, raw material passages defined between the pair of partition walls and the inner surface of the cylindrical chute. a distribution chute positioned below said passages. a control rod extending into said chamber and supporting said distribution chute. means in said chamber connected to said rod to control tilting and rotary movement of the distribution chute. and means to cause said control rod. distribution chute and cylindrical chute to rotate as a unit.
  • a device as defined in claim 1 wherein said distribution chute may be removed from the furnace and may be mounted again within the furnace.
  • a spreader assembly as called for in claim 1 comprising. in addition, a hopper disposed between said fixed distribution chute and said rotary chute and means to control the flow-rate of the raw materials into the rotary chute.

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  • 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)
  • Blast Furnaces (AREA)
  • Furnace Charging Or Discharging (AREA)
US451672A 1973-10-12 1974-03-15 Device for distributing raw materials into blast furnace Expired - Lifetime US3921831A (en)

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JP48114575A JPS5222802B2 (enrdf_load_stackoverflow) 1973-10-12 1973-10-12

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US (1) US3921831A (enrdf_load_stackoverflow)
JP (1) JPS5222802B2 (enrdf_load_stackoverflow)
DE (1) DE2418371C3 (enrdf_load_stackoverflow)
FR (1) FR2283227A1 (enrdf_load_stackoverflow)
GB (1) GB1481002A (enrdf_load_stackoverflow)

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US3963128A (en) * 1974-01-14 1976-06-15 Union Siserugique du Nord et de l'Est de la France Charging device for a blast-furnace
US4032024A (en) * 1974-11-26 1977-06-28 Demag Aktiengesellschaft Apparatus for distribution of charge material in shaft furnaces, particularly high pressure blast furnaces
US4151047A (en) * 1976-08-13 1979-04-24 S.A. Des Anciens Etablissements Paul Wurth Feed installation for apparatus for extracting hydrocarbons from bituminous schists
US4243351A (en) * 1977-06-06 1981-01-06 Paul Wurth S.A. Method of and apparatus for charging a furnace
US4316681A (en) * 1978-07-31 1982-02-23 Sansho Kabushiki Kaisha Blending equipment
US4559839A (en) * 1982-06-24 1985-12-24 Paul Wurth S.A. Apparatus for driving an oscillating spout
US5022806A (en) * 1988-09-22 1991-06-11 Paul Wurth S.A. Apparatus for charging a shaft furnace
WO1997037047A1 (en) * 1996-03-29 1997-10-09 Paul Wurth S.A. Charging device for a blast furnace
WO2004063397A1 (de) * 2003-01-14 2004-07-29 Voest-Alpine Industrieanlagenbau Gmbh & Co Vorrichtung zur kontrollierten beschickung eines reaktorgefässes sowie dessen verwendung und verfahren
WO2007147696A1 (en) * 2006-06-21 2007-12-27 Paul Wurth S.A. Charging device for a shaft furnace
US20110065057A1 (en) * 2009-09-17 2011-03-17 Petrocoque S/A Industria E Comercio Supply means of a rotating furnace used for calcination of oil green coke
US20110135425A1 (en) * 2008-08-08 2011-06-09 Paul Wurth S.A. Charging installation for a shaft furnace and lower sealing valve assembly therefore
CN103243188A (zh) * 2012-02-10 2013-08-14 吴蔓洁 一种高炉无钟炉顶布料方法与布料器
US20160060039A1 (en) * 2014-08-29 2016-03-03 Ksi Conveyors, Inc. Seed Distributor for Even Dispersion at Varying Flow Rates
US20190135557A1 (en) * 2017-08-18 2019-05-09 Zeppelin Systems Gmbh Loading Head of a Pneumatic Loading System for Bulk Material
CN110698086A (zh) * 2019-10-14 2020-01-17 中冶焦耐(大连)工程技术有限公司 一种异形窑膛双膛竖窑的布料装置
CN111232541A (zh) * 2020-02-13 2020-06-05 武汉轻工大学 一种角度可调的垂直转向弯头

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US3963128A (en) * 1974-01-14 1976-06-15 Union Siserugique du Nord et de l'Est de la France Charging device for a blast-furnace
US4032024A (en) * 1974-11-26 1977-06-28 Demag Aktiengesellschaft Apparatus for distribution of charge material in shaft furnaces, particularly high pressure blast furnaces
US4151047A (en) * 1976-08-13 1979-04-24 S.A. Des Anciens Etablissements Paul Wurth Feed installation for apparatus for extracting hydrocarbons from bituminous schists
US4243351A (en) * 1977-06-06 1981-01-06 Paul Wurth S.A. Method of and apparatus for charging a furnace
US4316681A (en) * 1978-07-31 1982-02-23 Sansho Kabushiki Kaisha Blending equipment
US4559839A (en) * 1982-06-24 1985-12-24 Paul Wurth S.A. Apparatus for driving an oscillating spout
US5022806A (en) * 1988-09-22 1991-06-11 Paul Wurth S.A. Apparatus for charging a shaft furnace
WO1997037047A1 (en) * 1996-03-29 1997-10-09 Paul Wurth S.A. Charging device for a blast furnace
US6004090A (en) * 1996-03-29 1999-12-21 Paul Wurth S.A. Charging device for a blast furnace
CN1067106C (zh) * 1996-03-29 2001-06-13 保尔·沃特公司 高炉用装料装置
WO2004063397A1 (de) * 2003-01-14 2004-07-29 Voest-Alpine Industrieanlagenbau Gmbh & Co Vorrichtung zur kontrollierten beschickung eines reaktorgefässes sowie dessen verwendung und verfahren
US20090180845A1 (en) * 2006-06-21 2009-07-16 Paul Wurth S.A. Charging device for a shaft furnace
RU2431097C2 (ru) * 2006-06-21 2011-10-10 Поль Вурт С.А. Загрузочное устройство для шахтной печи
WO2007147696A1 (en) * 2006-06-21 2007-12-27 Paul Wurth S.A. Charging device for a shaft furnace
CN101473182B (zh) * 2006-06-21 2011-04-27 保尔伍斯股份有限公司 用于竖炉的加料装置
US20110135425A1 (en) * 2008-08-08 2011-06-09 Paul Wurth S.A. Charging installation for a shaft furnace and lower sealing valve assembly therefore
US8932050B2 (en) * 2009-09-17 2015-01-13 Petrocoque S/A Indústria e Comércio Supply means of a rotating furnace used for calcination of oil green coke
US20110065057A1 (en) * 2009-09-17 2011-03-17 Petrocoque S/A Industria E Comercio Supply means of a rotating furnace used for calcination of oil green coke
CN103243188A (zh) * 2012-02-10 2013-08-14 吴蔓洁 一种高炉无钟炉顶布料方法与布料器
US20160060039A1 (en) * 2014-08-29 2016-03-03 Ksi Conveyors, Inc. Seed Distributor for Even Dispersion at Varying Flow Rates
US9675001B2 (en) * 2014-08-29 2017-06-13 KSi Conveyor, Inc. Seed distributor for even dispersion at varying flow rates
US20190135557A1 (en) * 2017-08-18 2019-05-09 Zeppelin Systems Gmbh Loading Head of a Pneumatic Loading System for Bulk Material
US10577195B2 (en) * 2017-08-18 2020-03-03 Zepplin Systems Gmbh Loading head of a pneumatic loading system for bulk material
CN110698086A (zh) * 2019-10-14 2020-01-17 中冶焦耐(大连)工程技术有限公司 一种异形窑膛双膛竖窑的布料装置
CN110698086B (zh) * 2019-10-14 2024-06-07 中冶焦耐(大连)工程技术有限公司 一种异形窑膛双膛竖窑的布料装置
CN111232541A (zh) * 2020-02-13 2020-06-05 武汉轻工大学 一种角度可调的垂直转向弯头

Also Published As

Publication number Publication date
DE2418371C3 (de) 1984-01-19
GB1481002A (en) 1977-07-27
JPS5065405A (enrdf_load_stackoverflow) 1975-06-03
FR2283227B1 (enrdf_load_stackoverflow) 1976-12-10
DE2418371A1 (de) 1975-04-17
JPS5222802B2 (enrdf_load_stackoverflow) 1977-06-20
FR2283227A1 (fr) 1976-03-26
DE2418371B2 (de) 1976-07-01

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