• 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 ferrous metallurgy and can be used in blast furnace production, as well as in technological processes, where dosing of portions of bulk materials is used. The purpose of the invention is to provide direction of flow along the central axis. The metering valve consists of two butterfly valves 1 and 2 in the shape of a ball or cylinder segment, each of which is provided with a notch symmetrical with respect to the axis of the central aperture, obtained by moving the valves. The mechanism for actuating the dampers synchronously and in opposite directions consists of levers and leads acting on the axis of suspension and rotation of the dampers under the action of hydraulic cylinders, for example. In order to avoid deviations of the output flow from the axis due to differences in the radii of curvature of the segments, one of the drivers that affect the axis of the valve is adjustable in length, for example, part of the driver can be made in the form of a hydraulic cylinder. 1 hp f-ly, 8 ill.
    公开号:SU1554767A3
    申请号:SU874203750
    申请日:1987-11-20
    公开日:1990-03-30
    发明作者:Лонарди Эмиль
    申请人:Поль Вюрт С.А. (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to ferrous metallurgy and can be used in blast furnace production, as well as in technological processes, where dosing of portions of bulk materials is used.
    The purpose of the invention is to provide direction of flow along the central axis of the furnace.
    Figure 1 shows a metering valve, driven using well-known technical means, a vertical section; figure 2 - the same, in horizontal projection; in FIGS. 3 and 4, the valves of FIGS. 1 and 2, actuated by the proposed mechanism; in fig. 5 and 6 show the proposed mechanisms with different angular positions of the metering valve, side view; FIG. 7, a mechanism for actuating the metering valve, general view; Fig. 8 is a block diagram of the control mechanism for actuating the metering valve.
    The valve contains two valves 1 and 2 in the form of a ball segment, which can rotate in opposite directions around a common axis at the bottom of the inlet 3. In both valves there are triangular notches. A mechanism is also provided for actuating these flaps, turning them in opposite directions to obtain an output of verstier 4 in the form of a square, completely symmetrical about the central axis, i.e. the horizontal distances a and b from the base of each notch in the valve to the central axis O are equal to each other, regardless of the angular position of the valves. In accordance with FIG. 1, experiments showed that a symmetrical opening leads to
    50
    5 o
    five
    a symmetric flow displaced at a distance from the central axis O. The reason for the displacement lies in the different radii of curvature of the flaps. In this example, the flap 2 has a larger radius of curvature, as can be seen from the protrusion 5 at the lower edge of the nozzle 3. From FIG. 1, it can be seen that the output flow is shifted in the direction opposite to the flap with a larger radius of curvature. A valve with a small radius provides more braking, and a valve with a large radius of curvature facilitates easier flow.
    To eliminate this phenomenon according to Figs. 3 and 4, it is proposed to increase the opening angle of segment 2 relative to the opening angle of segment 1 of a smaller radius or, in other words, to increase the distance a relative to distance b. As a result, the outlet 4 (Fig. 4) becomes asymmetrical with respect to the central axis 0, however, this results in an output flow that is symmetrical around the indicated axis (Fig. 3).
    The mechanism for actuating the metering valve (Fig. 05-7) is similar to the mechanism proposed in the aforementioned European patent.
    The mechanism for actuating the dampers comprises a drive shaft 6 connected to a smaller radius gate 1, placed coaxially inside a second drive shaft 7 connected to the lower gate 2. Both shafts are mounted in a bearing mounted in the outlet 3. The shafts b and 7 can be rotated one relative to the other and relative to the pipe 3 through the use of sleeves (not shown).
    The shafts 6 and 7 are connected respectively to the crossbars 8 and 9, each of
    which are pivotally connected to the first end of the driver 10. The opposite ends of the drivers 10 and 11 are in turn pivotally connected to the tipping arms 12 and 13 mounted on a common axis 14 parallel to the axis of rotation of both drive shafts 6 and 7 adapted to rotate around a common axes 14. Tipping levers 12 and 13 with opposite ends are connected together with a pin 15, so that they can forcibly rotate together around axis 14. To increase strength, it is desirable to weld the levers with each other using spacers (not showing us
    The tilting arms are swiveled from the hydraulic
    various types of materials. These data were obtained from preliminary experiments and relate to the length of the leash 11, i.e. to the magnitude of the extension rod 21 of the hydraulic cylinder that is built into the leash.
    Thus, in the storage device 23, the specified values of the amplitude of the stem extension as a function of the angular positions of the measured by the detector 22. The data is transmitted to the comparator 24. Information from the detector 25 embedded in the cylinder 20 and related to the actual amplitude stem extension 21, the Comparator 24 controls a hydraulic valve 26 that regulates the flow and
    cylinder 16, mounted turn-20 hydraulic circulation board
    It can be seen on the axis 17, mounted on the support plate 18, which is connected to the nozzle 3. A pin 15 passes through the end of the rod 19 of the cylinder 16 and connects the tippers.
    Fig. 5 shows the mechanism in the closed position of the flaps, while the construction in Fig. 6 is a consequence of the extension of the stem 19 of the hydraulic cylinder 16, which corresponds to the opening of the valve by turning the opposite sides of the crossbars 3 and 9
    The leash 11, which has an effect on the valve 2 of a larger radius, is made adjustable in length. To this end, the lead 11 is made in the form of a hydraulic device, the cylinder 20 of which is pivotally connected to the cross member 9, and the rod 2 is pivotally connected to the lever 13 or vice versa. When controlling the metering valve stem
    21 returns to the cylinder 20 (Fig. 6), resulting in a decrease in the length of the driver 11 and an increase in the angle of rotation of the shutter 2.
    Fig. 8 shows a control circuit for adjusting the length of the driver 1 1 as a function of the angular position of the flap 2. A detector is connected to the shaft 6
    22 angular position known construction, constantly providing a signal about the angular position of the valve 1 relative to any reference position, such as the central axis 0. This information is transmitted
    35
    environment between the pump 27 and the cylinder 20.
    If comparator 24 detects the difference dH between a given X and
    25 valid X positions, the hydraulic valve 26 is commanded to circulate the hydraulic medium in the appropriate direction to reduce
    3Q no difference DH so that the actual position X corresponds to the given X. For example, if flap 2 is not sufficiently open, then X is greater than X. In this case, hydraulic valve 26 supplies the hydraulic fluid to the piston rod compartment to return the rod 21 and reduce the amplitude X1 to as long as it doesn’t compare with the given value of ho
    The device (Fig.8) can operate in two different modes. It is possible to open the shutter 2 with the help of the cylinder 20 without affecting the shutter 1 to a predetermined position stored in the memory 23, and without taking into account the function of the opening angle about. When the valve 2 reaches the predetermined position, the action of the hydraulic cylinder 0 of the cylinder 20 is stopped and the hydraulic cylinder 16 comes into action to synchronously move both the valves 1 and 2 in opposite directions. In the second mode of operation, the hydraulic cylinder 16 enters
    40
    45
    into a storage device 23, where the data on the setpoint for the optimally both valves 1 and 2 are stored from the very beginning up to the opening
    time
    monkey
    open angle of the flap 2 as a function of the angular position of the flap 1 for
    However, the rate of opening is gradually increasing with
    five
    environment between the pump 27 and the cylinder 20.
    If comparator 24 detects the difference dH between a given X and
    5 valid X positions, the hydraulic valve 26 is commanded to circulate the hydraulic medium in the appropriate direction to reduce
    Q no difference DH so that the actual position X corresponds to the given X. For example, if valve 2 is not sufficiently open, then X is greater than X. In this case, hydraulic valve 26 supplies the hydraulic medium to the piston rod compartment to return the rod 21 and reduce the amplitude X1 to as long as it doesn’t compare with the given value of ho
    The device (Fig.8) can operate in two different modes. It is possible to open the shutter 2 with the help of the cylinder 20 without affecting the shutter 1 to a predetermined position stored in the memory 23, and without taking into account the function of the opening angle about. When the valve 2 reaches the predetermined position, the action of the hydraulic cylinder 20 stops and the hydraulic cylinder 16 enters into action for the simultaneous movement of both valves 1 and 2 in opposite directions. In the second mode of operation, the hydraulic cylinder 16 enters
    0
    five
    action from the very beginning to the opening of both flaps 1 and 2 into the same
    However, the rate of opening is gradually increasing with
    by the cylinder 20 as a function of the angle of opening of the flap 1 in accordance with the set values stored in the memory 23. Starting from the position of maximum opening of the valve 2 (FIG. 3), it is possible to fully activate the valve 20 the opposite direction in order to avoid the stop of the valve 2 in the pipe 3.
    One of the advantages of this device is the possibility of its use in existing mechanisms without modifications of other mechanical elements. In addition, the device can be adapted to the properties of various feed materials.
    The advantage of the device is also the possibility of operator intervention in the centering of the output stream during operation of the blast furnace, i.e. The operator, using appropriate measuring instruments, can determine the degree of uniformity of the charge entering the furnace and intervene at the metering valve.
    Fm.g

    ten
    547678
    权利要求:
    Claims (2)
    [1]
    1. A device for metering materials into a shaft furnace containing two rotary valves in the form of a sphere segment or cylinder with different radius of curvature, cutouts symmetrical with respect to the axis of rotation of the shutters, drive shafts coaxially arranged relative to each other and placed in body bearings with the possibility
    their mutual rotation relative to each other, the cross-bars mounted on the shafts, the levers hinged to the crossbars and tipping arms mounted on the same shaft, located parallel to the axis of the drive shafts, and connected to the drives of their rotation, about that that, in order to ensure the flow direction along the central axis, one of the leads is made adjustable in length.
    [2]
    2. The device according to claim 1, wherein the part of the driver is made in the form of a hydraulic cylinder.
    15
    20
    25
    Fig.Z
    Fy
    nineteen
    a xff
    IS
    Shig.7
    15
    to
    FIG. at
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    同族专利:
    公开号 | 公开日
    CS276244B6|1992-05-13|
    CN87107929A|1988-07-27|
    DE3766079D1|1990-12-13|
    AU8130087A|1988-05-26|
    KR960001232B1|1996-01-24|
    BR8706349A|1988-07-26|
    AU592906B2|1990-01-25|
    CA1296698C|1992-03-03|
    LU86679A1|1988-06-13|
    EP0269930B1|1990-11-07|
    JPS63145887A|1988-06-17|
    ZA878264B|1988-05-03|
    AT58175T|1990-11-15|
    US4815696A|1989-03-28|
    EP0269930A1|1988-06-08|
    IN171258B|1992-08-22|
    TR23164A|1989-06-02|
    KR880006487A|1988-07-23|
    CN1010231B|1990-10-31|
    ES2018529B3|1991-04-16|
    JPH07109259B2|1995-11-22|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2781743A|1948-06-24|1957-02-19|Alfred K Mann|Electro-hydraulic servomechanism for control of roll, pitch and yaw of a guided missile|
    FR1055606A|1951-05-15|1954-02-19|Babcock & Wilcox France|Sector valve for gas lines|
    FR1147940A|1954-09-27|1957-12-02|Lamellar shutter|
    US3038449A|1959-06-03|1962-06-12|Gen Dynamics Corp|Hydraulic control system|
    US3149642A|1960-02-12|1964-09-22|Robert D Marx|Product valve for truck tanks and the like|
    US3317179A|1963-08-09|1967-05-02|David F Wiseman & Sons Ltd|Valve operating linkages|
    BE788477Q|1964-08-20|1973-01-02|Union Carbide Corp|IMPROVEMENTS TO OVEN LOADING DEVICES|
    CA848329A|1968-06-04|1970-08-04|R. Heal Gerald|Gate operating mechanism for conveying buckets|
    DE2148298A1|1971-09-28|1973-04-05|Librawerk Pelz & Nagel Kg|LOCK FOR THE OUTLET OF THE MATERIAL GUIDE SHAFT FOR SCHUETTGUETER|
    US3902694A|1974-03-05|1975-09-02|Morley V Friedell|Swinging spherical gate valve and double seal quick disconnect coupling|
    US4037519A|1975-04-21|1977-07-26|Deere & Company|Hydraulic system|
    US3998426A|1975-07-10|1976-12-21|Thomas John Isbester|Clamshell-type hydraulic flow control gate|
    LU74745A1|1976-04-12|1976-11-11|
    JPS5338875A|1976-09-20|1978-04-10|Tokico Ltd|Position control system|
    LU83279A1|1981-04-03|1983-03-24|Wurth Paul Sa|LOADING SYSTEM FOR A TANK OVEN|
    FR2512977B1|1981-09-11|1984-10-12|Thomson Csf|
    LU84890A1|1983-06-29|1985-03-29|Wurth Paul Sa|MECHANISM FOR OPERATING A DOSING VALVE|
    US4694390A|1985-06-28|1987-09-15|Electric Power Research Institute, Inc.|Microprocessor-based control and diagnostic system for motor operated valves|WO1988000915A1|1986-07-31|1988-02-11|Ruehland Lothar|Collection tank for reusable product|
    US5967486A|1997-05-20|1999-10-19|Mccrory; Gene A.|Automated actuator for pull-open, push-closed valves|
    US6086038A|1998-11-16|2000-07-11|Young & Franklin, Inc.|Linkage locking device|
    US6892752B2|2000-03-14|2005-05-17|Yarra Valley Water|Pipeline isolating device|
    US9821953B2|2011-05-02|2017-11-21|The Charles Machine Works, Inc.|Apparatus for sealing a vacuum tank door|
    CN106764022B|2016-11-21|2018-08-28|广西大学|A kind of hydraulicdirectional control valve power-off holding meanss|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    LU86679A|LU86679A1|1986-11-21|1986-11-21|MECHANISM FOR OPERATING A DOSING VALVE|
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