• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to devices for loading a shaft furnace. The aim of the invention is to prevent segregation of the feed material. The device contains a distributor with a rotary or swinging chute, mounted on the vertical axis of the furnace accumulative bin, the outlet of which is controlled by a metering mechanism, made with the ability to increase and decrease the output section symmetrically relative to the vertical axis. To reduce particle segregation, the storage bin 3 and the metering mechanism 11 are mounted for movement around a vertical axis within an impermeable chamber 6, above which there are at least two tanks each fitted with upper 22 and lower 21 sealing flaps, while the bunker 3 and the bottom of each the tanks are made in the form of an elongated funnel, the conic wall of which makes an angle of less than 30 ° with the vertical axis of the furnace. 4 hp f-ly, 3 ill.
    公开号:SU1498395A3
    申请号:SU864027143
    申请日:1986-03-14
    公开日:1989-07-30
    发明作者:Мар Рене；Лонарди Эмиль；Бернард Жильбер；Солви Марк；Мэйе Пьер
    申请人:Поль Вюрт С.А. (Фирма)；
    IPC主号:
    专利说明:

    mechanism made with the ability to increase or decrease the output section symmetrically about the vertical axis. To reduce the segregation of particles is cumulative. the hopper 3 and the metering mechanism 11 are mounted for movement around a vertical axis inside the impermeable chamber 6, over which
    The swarm contains at least two tanks, each equipped with upper 22 and lower 21 sealing flaps, while the hopper 3 and the dyo of each of the tanks are designed as an elongated funnel, the conical wall of which is less than 30. 4 hp f-ly, 3 ill.
    The invention relates to a device for loading a shaft furnace, containing a switchgear with a rotary or swinging chute, a collection hopper installed on the vertical axis of the furnace, an outlet opening in the bunker chute is controlled by a metering mechanism configured to increase or decrease the output section symmetrically around said vertical axis.
    The aim of the invention is to prevent segregation of the feed material.
    1 schematically shows op
    attached device with three versions of tank filling devices (side view); figure 2 is a horizontal section; FIG. 3 is a chronological diagram of various boot operations.
    The loading device (Fig. 1) is mounted on the frame 1, which, in turn, is installed on the head of the shaft furnace 2, in which the rotary or swinging chute is placed to distribute the feed product.
    The storage hopper 3 is installed symmetrically around the vertical axis of the furnace above the vertical supply channel 4 leading to chute 5. According to one of the embodiments of the invention, the hopper 3 is designed as an elongated funnel, the conical wall of which makes an angle of less than or equal to the DO, maximum The diameter does not exceed 4-5 meters in its upper part.
    Storage hopper 3 is covered with an airtight chamber 6 mounted on the frame 1.
    According to another embodiment of the invention, the hopper 3 may rotate within the chamber 6 about a vertical axis.
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    For this purpose, it is equipped with several, for example four, rollers 7, which move along a circular rail 8 located on the inner flange of the chamber 6. Other rollers 9 with a vertical axis of rotation provide for horizontal holding, moving along the inner flange of the rail 8.
    The hopper 3 continues downwardly with an outlet nozzle 10 provided with a metering valve I1 for adjusting the emptying of the feed product from the hopper 3 onto the chute 5. The shutter 11 is made in the form of two dampers "mainly in the form of ball segments) that are synchronously opened and closed in the opposite direction relative to the axis to create symmetrically around the axis of the furnace. , outlet. The gates can be controlled in a known manner by means of an annular rail 12, which can be raised and lowered from the outside, and in which the guide rollers mounted on the shoulders of the gates move, allowing the flap 3 to move during rotation of the hopper 3 by means of the rail 12.
    In order to avoid the ingress of excessive amounts of hot gases into chamber 6, its bottom is also designed as a funnel, which forms a narrower narrowing 13 over the ifOM 10, between the wall of the chamber 6 and the wall of the hopper 3. To narrowing 13, the apron can reduce the passage of gas. As an alternative solution, an inert gas under pressure can be supplied to the chamber 6 in order to create a countercurrent that descends through the restriction 13 and prevents the rise of 1-gas.
    Above the chamber 6 are located a triangle of three separate tanks 14-16 (tank 16 is not visible), supported by individual frames. The communication between each reservoir 14, 15 and 16 and the hopper 3 is via gate boxes 17, 18, 19, respectively, which contain (each) metering 20 and sealing 21 valves. The metering valve 20 is configured as two. spherical vane turning due to symmetrical action around the vertical axis of each tank. The valve 20, as well as the lower nozzle of the tank with which it interacts, is made (preferably) as wide as possible in order to ensure the rapid ejection of the contents of the tanks into the hopper 3,
    Each of the tanks 14-16 must be provided with an upper sealing flap 22, which will pressurize the tanks during the pouring of the product into the hopper, as well as their aeration during loading. An impermeable compensator 23 is located between the chamber 6 and the head 2. The same impermeable compensators 24 are located between the chamber 6 and each of the gate boxes 17-19. Compensators 23 and 24 allow weighing separately the chamber 6 with the hopper 3, as well as each of the tanks 14-16. Weighing is carried out in a known manner by means of strained cells, shown schematically by the positions 25 and 26 on which chamber 6 is mounted, as well as each of the tanks 14-16, respectively. By individual weighing, the contents of the hopper 3, as well as each of the tanks 14-16, can be determined by automatically opening the shutters to fill and empty these containers.
    The product loaded into the furnace is supplied by a belt conveyor 27, which overturns it (in the embodiment shown in Fig. 1) into a spare bunker 28, the rash from which is controlled by a flap 29. Under the bunker 28 there is a turning chute 30 which provides a serial connection between the bunker 28 and each of the tanks 14-16.
    For example, in the preferred embodiment of the device, the capacity of each of the tanks 14-16, as well as the capacity of the bunker 3, is only 20 m. (Versus 80 m in the prototype). from tanks, as well as the bunker 3, has the extended form, at the same time the angle of their conic wall
    with a vertical axis not exceeding 30. Straight tube-shaped chambers would be ideal, the cross section of which is equal to the cross section of the outlet pipe, but this is difficult to achieve due to the concomitant increase in height. Consequently, a compromise is needed between the length available and the cross section of the tanks and the storage bin. In each of the tanks 14-16
    An anti-segregation box 31 is installed, which reduces segregation during filling and contributes to a more uniform precipitation during emptying. In bunker 3 there are also
    one (central) anti-segregation box 32 and (additionally) one upper ring box 33. These boxes reduce the rolling of particles and contribute to throwing fines to the wall,
    whereas, in the absence of cases, the latter tends to be assembled along the axis of the furnace.
    Rotation of the hopper 3 also reduces segregation to some extent. However, the main purpose of rotation is to ensure the correct filling of the hopper 3. The rotation is performed at a speed of 6-8 rpm and allows the contents of the reservoir to be placed in the hopper 3 along the loading line 34 with only a small notch in the central part.
    The method of loading the furnace using
    structures with three tanks
    20 m each and a 30 m bunker as follows. Baseline: Performance,
    t of cast iron / day10,000
    Safety factor1, 3 Maximum performance, tons of cast iron / day1,310.000
    13.000
    N furnace, m10
    Thickness of one loading layer, m1
    at
    bonds
    n 5 m3 volume of 4 tanks
    13,000: 80,163
    163x2 326
    24-60 60
    326
     265
    open and 3 valve-flaps 11, s
    Time required
    for
    ti
    Real time
    "L each cycle, with
    Flow rate adjustable
    damper 11, m / s
    2x13 26 265-26 239
    80/239 sec. 0.335.
    The loading scheme (Fig. 3) is in fact the superposition of four graphs on the same time base: schedule 1 pgg: consecutive phases lasting 265 s to; 1J and alternating loads of coke and ore; phase II, emptying three tanks (which are not represented by their numerals 14, 15 and 16, and for convenience, are indicated by the letters A, B, C); schedule III - loading of three tanks A, B-, C, and schedule TV - supply of coke and ore using a belt conveyor 27
    The first 13 seconds are intended to open the metering valves 11 and the position corresponding to the flow rate of 0.335 mUs of the loaded product. At the initial time, the sealing and metering flaps of tank A are open and within 13 seconds the contents of tank A are completely transferred to bunker 3 (graph II). During this time, the filling of reservoir B is completed and the filling begins. C; reservoir C (graph III). The conveyor belt feed of the continuous 80 m layer continues (Graph IV).
    In the example presented, it is assumed that a layer of coke is first laid (fat black line). After 13 seconds, the coke pouring onto the distribution chute starts at a flow rate of 0.335. Reservoir A, exempt from its contents, may
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    be prepared for the next filling. For this purpose, the metering slide and the lower sealing flap are closed and the tank is ventilated. When the result of the constant weighing of the chamber 6 and the bunker 3 indicates that its contents have dropped to a certain level, the contents of the reservoir B are transferred (also in 13 seconds) to the bunker 3, continuing to pour out of it. The filling of tank C, which also continues, is coming to an end. 5 As soon as the latter is filled, tank A, the top sealing flap of which has just been opened, will receive the last twenty cubic meters of coke from the belt conveyor.
    During the filling of the tank A °, the tank C is pressurized. As soon as the level in the hopper 3 is low enough, the contents of the tank C are transferred to the hopper. After filling the tank, it is also started to pressurize it in order to transfer the contents to the bunker 3. When this is done, the contents of tank A will be poured twice and the contents of each of tanks B and C will be poured into the bunker twice, i.e. 80 m of coke will be packed at the end a period of 252 s in one uniform meter layer in concentric circles from the periphery to the center of the loaded surface. After 252 seconds, the flap 1I of the hopper 3 is closed to prepare the ore loading cycle. In fact, this cycle has already begun at the top level with the rise of 2.7 ore layers in 80 m by the conveyor and the filling of tanks B and C.
    At the end of the first cycle, i.e. after 265 seconds, the contents from tank B to bunker 3 are transferred for 13 seconds. At the same time, the metering valves are opened to the emptying position corresponding to a flow rate of 0.335. At the time of emptying the tank, the filling operation C and the filling of the ore into tank A. begins. After 1 3 seconds, the ore is loaded with a load similar to coke, i.e., the contents of tanks B – C, A and B are sequentially poured out each time, since the command for this is issued only after weighing the bunker 3.
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    The use of the invention will reduce the segregation of the feed material.
    权利要求:
    Claims (3)
    [1]
    Invention Formula
    J. A device for loading a shaft furnace, containing a distributor mounted on the vertical axis of the furnace, with a rotary or tilting chute, a storage bin with an outlet and a metering mechanism located under two at least tanks installed on the strainers; bottom sealing flaps, while the storage bin and the tanks have the shape of a truncated cone, characterized in that, in order to prevent segregation of the feed material, it is equipped with metichnoy chamber, inside which are rotatably mounted about the vertical furnace axis collecting hopper and the metering mechanism at ztom nakopitelFi1 wall. Z
    The hopper and tanks are made with a taper of less than 30 °.
    2. The device pop. 1, which differs from the fact that it is supplied
    [2]
    anti-segregation boxes installed in the center of each tank and bunker.
    3. The device according to claim 2. about tl and - that at the top
    [3]
    parts of the bunker, under the outlet openings of the tanks, are installed an additional anti-segregation box of ring shape.
     The device according to claims 1 to 3, about tl and the fact that the tanks are connected to the bunker by means of three-bolt boxes, each of which is made with metering and sealing valves.
    5. The device according to claim 4, which is based on the fact that there are compensators between each of the boxes and the chamber and between the bottom of the chamber and the furnace head, while the hermetic chamber is installed on the tensioned cells .
    -J
     ;. I I I
     s jr-b Lrf. I
    tYaYaYaVjjfHinSh HI
    d I
    iiU-, П ii fj I П «| ri (
    I ll II II
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    同族专利:
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    CN86101639A|1986-12-03|
    UA8328A1|1996-03-29|
    JPS61264113A|1986-11-22|
    EP0196486B1|1988-09-14|
    DE3660723D1|1988-10-20|
    CN1004230B|1989-05-17|
    LU85811A1|1986-10-06|
    PL155071B1|1991-10-31|
    US4728240A|1988-03-01|
    KR930009385B1|1993-10-02|
    EP0196486A1|1986-10-08|
    AT37200T|1988-09-15|
    KR860007384A|1986-10-10|
    BR8601267A|1986-12-02|
    IN164440B|1989-03-18|
    CA1263231A|1989-11-28|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE699298C|1936-09-27|1940-11-26|Julius Pintsch Kom Ges|Equipment for charging sulfur cleaning tanks for dry gas cleaning using cleaning compound|
    US2897984A|1953-05-16|1959-08-04|Augeard Jean Marie Marcel|Charging apparatus for blast furnace|
    US3476374A|1967-06-06|1969-11-04|United States Steel Corp|Apparatus for charging a blast furnace continuously|
    LU58146A1|1968-03-08|1969-07-07|
    US3576262A|1969-06-06|1971-04-27|Us Interior|Rotary particle distributor for minimizing particle size segregation in a bin|
    LU60997A1|1970-05-27|1972-03-20|
    US3796419A|1971-04-15|1974-03-12|Mc Kee A & Co|Charging apparatus for shaft furnaces|
    US3706387A|1972-01-17|1972-12-19|Mohr & Sons John|Blast furnace charging apparatus for high top pressure|
    US3780890A|1972-03-01|1973-12-25|Mckee A & Co|Furnace charging apparatus|
    US3929240A|1972-07-05|1975-12-30|Wurth Anciens Ets Paul|Shaft furnace charging process|
    JPS5825724B2|1973-11-01|1983-05-30|Aasaa Jii Matsukukii Ando Co|
    US4029220A|1975-11-28|1977-06-14|Greaves Melvin J|Distributor means for charging particulate material into receptacles|
    JPS576516Y2|1977-09-03|1982-02-06|
    LU80630A1|1978-12-08|1979-04-09|Wurth Anciens Ets Paul|METHOD AND INSTALLATION FOR LOADING A TANK OVEN|
    LU80646A1|1978-12-12|1979-04-13|Wurth Anciens Ets Paul|CHARGING DEVICE FOR A TANK OVEN|
    LU82840A1|1980-10-10|1981-02-02|Wurth Anciens Ets Paul|IMPROVEMENTS TO FEEDING SYSTEMS FOR BELL-FREE GUEULARD OVENS|
    SE441865B|1981-03-10|1985-11-11|Skf Steel Eng Ab|DEVICE TO ENCOURAGE SUPPLYING PIECE MATERIAL TO A SHAK|
    LU83279A1|1981-04-03|1983-03-24|Wurth Paul Sa|LOADING SYSTEM FOR A TANK OVEN|
    LU84015A1|1982-03-15|1983-11-17|Wurth Paul Sa|DEVICE FOR CONTROLLING THE FLOW OF THE LOADING MATERIAL OF A STORAGE ENCLOSURE IN A LOADING INSTALLATION OF A TANK OVEN|
    JPS6031065Y2|1983-01-07|1985-09-18|LU86335A1|1986-03-04|1987-11-11|Wurth Paul Sa|LOADING SYSTEM FOR A TANK OVEN|
    LU86820A1|1987-03-24|1988-11-17|Wurth Paul Sa|SUPPORT FRAMEWORK FOR A LOADING INSTALLATION OF A TANK OVEN|
    LU87341A1|1988-09-22|1990-04-06|Wurth Paul Sa|LOADING SYSTEM FOR A TANK OVEN|
    US4917560A|1989-01-19|1990-04-17|Cmi Corporation|Twin bin self erect silo|
    CH678847A5|1989-06-02|1991-11-15|Maerz Ofenbau|
    US5458450A|1993-05-07|1995-10-17|Exxon Chemical Patents Inc.|Pressure-vacuum rated flexible connector for use in material handling systems|
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    US5494263A|1994-03-07|1996-02-27|Centro De Investigacion Y Asistencia Tecnica Del Edo. De Qro, A.C.|System for solid material charging into vertical reactors by electronic control of the exhaust gases|
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    DE10153425A1|2001-11-03|2003-05-15|Pfister Gmbh|Method and device for gravimetric dosing of bulk material|
    AT412786B|2003-07-04|2005-07-25|Voest Alpine Industrieanalgenb|METHOD FOR CHARGING FLUIDABLE MATERIAL AND DEVICE FOR CARRYING OUT THE METHOD|
    FI118438B|2004-09-09|2007-11-15|Outotec Oyj|Device for distributing a hot input material|
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    CN103423991B|2012-05-18|2015-02-04|中国有色（沈阳）冶金机械有限公司|Feeding cart of magnesium smelting operation unit|
    KR101534126B1|2014-03-06|2015-07-06|주식회사 포스코|Charging apparatus for raw material and the method thereof|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    LU85811A|LU85811A1|1985-03-15|1985-03-15|LOADING SYSTEM FOR A TANK OVEN|
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