CN210127980U - Converter slide pushing off slag hydraulic control device - Google Patents
Converter slide pushing off slag hydraulic control device Download PDFInfo
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- CN210127980U CN210127980U CN201920468367.4U CN201920468367U CN210127980U CN 210127980 U CN210127980 U CN 210127980U CN 201920468367 U CN201920468367 U CN 201920468367U CN 210127980 U CN210127980 U CN 210127980U
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Abstract
A hydraulic control device for pushing off slag of a converter sliding plate belongs to the technical field of converter steelmaking equipment and is used for carrying out hydraulic control on the pushing off slag of the converter sliding plate. The technical scheme is as follows: the composite hydraulic cylinder is composed of a first hydraulic cylinder and a second hydraulic cylinder, the first hydraulic cylinder and the second hydraulic cylinder share one piston rod, a cylinder barrel and a partition plate, a pressure cavity is formed by the outer surfaces of a first piston, the cylinder barrel, the partition plate and the piston rod in the first hydraulic cylinder in a surrounding mode, a first quick response control unit is connected to a rod cavity and the pressure cavity of the first hydraulic cylinder through oil pipes, a second quick response control unit is connected to a rod cavity and a rodless cavity of the second hydraulic cylinder through oil pipes, and the first slow electromagnetic control unit and the second slow electromagnetic control unit are connected with the first quick response control unit and the oil pipe, which is connected with the composite hydraulic cylinder, of the second quick response control unit through the oil pipes respectively. The utility model can effectively improve the response speed of the converter sliding plate slag stopping, and the closing time of the sliding plate slag stopping meets the production requirement.
Description
Technical Field
The utility model relates to a converter slide shelves sediment hydraulic control device of steel mill belongs to converter steelmaking equipment technical field.
Background
The converter sliding plate slag blocking technology is based on the principle of transplanting a ladle sliding nozzle, a sliding nozzle device is installed at the position of a steel tapping hole of an original converter, and slag blocking and steel tapping are realized through dislocation of a steel flowing hole between a sliding plate and a fixed sliding plate. The sliding plate device is more special due to more severe use conditions, more severe environment and more limited space at the position of the converter steel tapping hole. The converter sliding plate slag blocking device consists of a steel tapping hole, a fixed sliding plate, a sliding plate and a hydraulic system, wherein the part of the fixed sliding plate is fixed with the steel tapping hole, the part of the sliding plate is connected with the hydraulic system through a push-pull rod, and a hydraulic oil cylinder drives the push-pull rod to do left and right relative motion so as to make the sliding plate and the fixed sliding plate do left and right relative motion, thus realizing full opening, half opening and closing of a steel flowing hole and achieving the purposes of flow control and slag blocking and steel tapping. The slag discharging during the converter tapping comprises three stages, namely early-stage slag, vortex effect slag in the tapping process and later-stage slag, wherein the early-stage slag amount is about 30%, the vortex effect slag is about 30%, and the later-stage slag is about 40%. The sliding plate slag blocking technology can close the sliding plate of the steel tapping hole before steel tapping, open the sliding plate again after the molten steel covers the position of the steel tapping hole to tap steel, avoid slag falling in the early stage of steel tapping, detect slag falling by an infrared slag falling detector in the last stage of steel tapping, quickly close the sliding plate to be fully opened, half opened and closed, and achieve the purposes of flow control and slag blocking steel tapping. However, in the practical application of sliding plate slag stopping, as the sliding plate is slowly closed by the hydraulic cylinder, part of the steel slag also flows into the steel ladle, the rephosphorization amount of the molten steel is greatly influenced, and the smelting of high-quality steel is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a converter slide shelves sediment hydraulic control device is provided, this kind of hydraulic control device can effectively improve the response speed of converter slide shelves sediment, makes slide shelves sediment close time accord with the production requirement.
The technical scheme for solving the technical problems is as follows:
a converter sliding plate slag-stopping hydraulic control device comprises a composite hydraulic cylinder, a first quick response control unit, a second quick response control unit, a first slow electromagnetic control unit and a second slow electromagnetic control unit, wherein the composite hydraulic cylinder comprises a first hydraulic cylinder and a second hydraulic cylinder, the first hydraulic cylinder comprises a piston rod, a cylinder barrel, a first piston and a partition plate, the second hydraulic cylinder comprises a piston rod, a cylinder barrel, a partition plate and a second piston, the first hydraulic cylinder and the second hydraulic cylinder share one piston rod, cylinder barrel and partition plate, a pressure cavity is formed by the outer surfaces of the first piston, the cylinder barrel, the partition plate and the piston rod in the first hydraulic cylinder, the first quick response control unit is connected to a rod cavity and a pressure cavity of the first hydraulic cylinder of the composite hydraulic cylinder through oil pipes, the second quick response control unit is connected to the rod cavity and a rodless cavity of the second hydraulic cylinder of the composite hydraulic cylinder through oil pipes, the first slow electromagnetic control unit is connected with an oil pipe of the first quick response control unit connecting composite hydraulic cylinder through an oil pipe, and the second slow electromagnetic control unit is connected with an oil pipe of the second quick response control unit connecting composite hydraulic cylinder through an oil pipe.
The converter sliding plate slag stopping hydraulic control device is characterized in that the first quick response control unit is composed of a second hydraulic control one-way valve, a first electro-hydraulic directional valve, a second stop valve and a second one-way valve, the second hydraulic control one-way valve is connected with a rod cavity and a pressure cavity of a first hydraulic cylinder of the composite hydraulic cylinder through oil pipes, the first electro-hydraulic directional valve is connected with the second hydraulic control one-way valve, the second stop valve and the second one-way valve are respectively connected with the first electro-hydraulic directional valve, and a main oil way of the converter sliding plate slag stopping hydraulic control device is respectively connected with the second stop valve 7 and the second one-way valve.
The converter sliding plate slag-stopping hydraulic control device is characterized in that the second quick response control unit consists of a third hydraulic control one-way valve, a second electro-hydraulic reversing valve, a third stop valve and a third one-way valve, the third hydraulic control one-way valve is connected with a rod cavity and a rodless cavity of a second hydraulic cylinder of the composite hydraulic cylinder through oil pipes, the second electro-hydraulic reversing valve is connected with the third hydraulic control one-way valve, the third stop valve and the third one-way valve are respectively connected with the second electro-hydraulic reversing valve, and a main oil way of the converter sliding plate slag-stopping hydraulic control device is respectively connected with the third stop valve and the third one-way valve.
The converter sliding plate slag-stopping hydraulic control device is characterized in that the first slow-speed electromagnetic control unit comprises a first hydraulic control one-way valve, a first electromagnetic directional control valve, a first stop valve and a first one-way valve, the first hydraulic control one-way valve is connected with an oil pipe of the first quick response control unit connection composite hydraulic cylinder through the oil pipe, the first electromagnetic directional valve is connected with the first hydraulic control one-way valve, the first stop valve and the first one-way valve are respectively connected with the first electromagnetic directional valve, and a main oil way of the converter sliding plate slag-stopping hydraulic control device is respectively connected with the first stop valve and the first one-way valve.
The converter sliding plate slag-stopping hydraulic control device is characterized in that the second slow-speed electromagnetic control unit consists of a fourth hydraulic control one-way valve, a second electromagnetic directional valve, a fourth stop valve and a fourth one-way valve, the fourth hydraulic control one-way valve is connected with an oil pipe of the second fast response control unit connection composite hydraulic cylinder through the oil pipe, the second electromagnetic directional valve is connected with the fourth hydraulic control one-way valve, the fourth stop valve and the fourth one-way valve are respectively connected with the second electromagnetic directional valve, and a main oil way of the converter sliding plate slag-stopping hydraulic control device is respectively connected with the fourth stop valve and the fourth one-way valve.
The converter sliding plate slag stopping hydraulic control device also comprises an energy accumulator group, and the energy accumulator group is connected in parallel with a main oil way of the converter sliding plate slag stopping hydraulic control device.
The utility model has the advantages that:
the utility model discloses a compound pneumatic cylinder and two quick response the control unit, two slow speed electromagnetic control units, two quick response the control unit of normal use when the converter is smelted, two slow speed electromagnetic control units are standby control unit, or will use when carrying out the slide fender sediment at a slow speed.
The utility model discloses a converter slide pushing off slag hydraulic control device's compound pneumatic cylinder adopts the mode improvement pneumatic cylinder of double piston power, and quick response control unit adopts two electrohydraulic reversing valve control, has increased drive hydraulic cylinder's flow, and the left position function of each electrohydraulic reversing valve is "P type", and when the left position electro-magnet of electrohydraulic reversing valve got to the electricity like this, pneumatic cylinder and electrohydraulic reversing valve will constitute a differential system, have improved the response speed of converter slide pushing off the slag.
The utility model discloses a converter slide pushing off slag technique's initiative has solved among the prior art because the pneumatic cylinder closes the slide relatively slowly, causes the problem that influences the molten steel quality in partial slag flows the ladle, can improve the response speed of converter slide shelves sediment effectively, makes slide shelves sediment close time accord with the production requirement, has improved the quality of product, has apparent economic benefits.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
The figures are labeled as follows: the hydraulic control system comprises a compound hydraulic cylinder 1, a first hydraulic control one-way valve 2, a first electromagnetic directional valve 3, a first stop valve 4, a second hydraulic control one-way valve 5, a first electro-hydraulic directional valve 6, a second stop valve 7, a first one-way valve 8, a third hydraulic control one-way valve 9, a second electro-hydraulic directional valve 10, a third stop valve 11, a second one-way valve 12, a fourth hydraulic control one-way valve 13, a second electromagnetic directional valve 14, a fourth stop valve 15, a third one-way valve 16, a fourth one-way valve 17, an energy accumulator group 18, a first piston 19, a partition plate 20, a second piston 21, a cylinder rod 22, a cylinder barrel 23, a first hydraulic cylinder 24, a second hydraulic cylinder 25 and a pressure cavity 26.
Detailed Description
The utility model discloses a compound pneumatic cylinder 1, first quick response the control unit, second quick response the control unit, first slow electromagnetic control unit, second slow electromagnetic control unit, accumulator group 18.
The compound cylinder 1 is shown to be comprised of a first cylinder 24 and a second cylinder 25. The first hydraulic cylinder 24 consists of a piston rod, a cylinder 23, a first piston 19 and a partition plate 20; the second hydraulic cylinder 25 is composed of a piston rod, a cylinder 23, a partition plate 20 and a second piston 21; the first hydraulic cylinder 24 and the second hydraulic cylinder 25 share one piston rod, a cylinder 23, and a partition plate 20, and a pressure chamber 26 is defined by the first piston 19, the cylinder 23, the partition plate 20, and the outer surface of the piston rod in the first hydraulic cylinder 24.
The whole structure of the utility model is that, the first quick response control unit is connected to the first hydraulic cylinder 24 of the compound hydraulic cylinder 1 through oil pipe and has the pole chamber and pressure chamber, the second quick response control unit is connected to the second hydraulic cylinder 25 of the compound hydraulic cylinder 1 through oil pipe and has the pole chamber and no pole chamber, the first slow electromagnetic control unit is connected with the oil pipe that the compound hydraulic cylinder 1 is connected to the first quick response control unit through oil pipe, the second slow electromagnetic control unit is connected with the oil pipe that the compound hydraulic cylinder 1 is connected to the second quick response control unit through oil pipe and is connected.
The figure shows that the first quick response control unit consists of a second hydraulic control one-way valve 5, a first electro-hydraulic reversing valve 6, a second stop valve 7 and a second one-way valve 12. The second hydraulic control one-way valve 5 is connected with a rod cavity and a pressure cavity of a first hydraulic cylinder 24 of the composite hydraulic cylinder 1 through an oil pipe, the first electro-hydraulic directional valve 6 is connected with the second hydraulic control one-way valve 5, the second stop valve 7 and the second one-way valve 12 are respectively connected with the first electro-hydraulic directional valve 6, and a main oil way of the converter sliding plate slag stopping hydraulic control device is respectively connected with the second stop valve 7 and the second one-way valve 12.
The second quick response control unit is shown to be composed of a third pilot operated check valve 9, a second electro-hydraulic directional control valve 10, a third stop valve 11 and a third check valve 16. The third hydraulic control one-way valve 9 is connected with a rodless cavity of a second hydraulic cylinder 25 of the oil pipe composite hydraulic cylinder 1 through a rod cavity, the second electro-hydraulic directional valve 10 is connected with the third hydraulic control one-way valve 9, the third stop valve 11 and the third one-way valve 16 are respectively connected with the second electro-hydraulic directional valve 10, and a main oil way of the converter sliding plate slag stopping hydraulic control device is respectively connected with the third stop valve 11 and the third one-way valve 16.
When the first quick response control unit and the second quick response control unit do not work, the second hydraulic control one-way valve 5 and the third hydraulic control one-way valve 9 lock off oil passages with the first hydraulic cylinder 24 and the second hydraulic cylinder 25, the second stop valve 7 and the third stop valve 11 are used for communicating or cutting off main pressure oil and valves of two sets of hydraulic systems, and the second check valve 12 and the third check valve 16 are used for returning return oil of the control systems to an oil tank.
The figure shows that the first slow electromagnetic control unit consists of a first pilot-operated check valve 2, a first electromagnetic directional valve 3, a first stop valve 4 and a first check valve 8. The first hydraulic control one-way valve 2 is connected with an oil pipe of the first quick response control unit connection composite hydraulic cylinder 1 through the oil pipe, the first electromagnetic directional valve 3 is connected with the first hydraulic control one-way valve 2, the first stop valve 4 and the first one-way valve 8 are respectively connected with the first electromagnetic directional valve 3, and a main oil path of the converter sliding plate slag stopping hydraulic control device is respectively connected with the first stop valve 4 and the first one-way valve 8.
When the slow electromagnetic control unit does not work, the first hydraulic control one-way valve 2 cuts off an oil path with the first hydraulic cylinder 24, the first cut-off valve 4 is used for communicating or cutting off an oil path between main pressure oil and the slow electromagnetic control unit, and the first one-way valve 8 is used for returning return oil of the control system to an oil tank.
The second slow electromagnetic control unit is shown to be composed of a fourth pilot-operated check valve 13, a second electromagnetic directional valve 14, a fourth stop valve 15 and a fourth check valve 17. The fourth hydraulic control one-way valve 13 is connected with an oil pipe of the second quick response control unit connection composite hydraulic cylinder 1 through an oil pipe, the second electromagnetic directional valve 14 is connected with the fourth hydraulic control one-way valve 13, the fourth stop valve 15 and the fourth one-way valve 17 are respectively connected with the second electromagnetic directional valve 14, and a main oil path of the converter sliding plate slag stopping hydraulic control device is respectively connected with the fourth stop valve 15 and the fourth one-way valve 17.
When the slow electromagnetic control unit does not work, the fourth pilot-controlled check valve 13 cuts off an oil path with the second hydraulic cylinder 25, the fourth stop valve 15 is used for communicating or cutting off an oil path of main pressure oil and the slow electromagnetic control unit, and the fourth check valve 17 is used for returning return oil of the control system to an oil tank.
The main oil circuit of the converter sliding plate slag-stopping hydraulic control device is also connected with an energy accumulator group 18 in parallel, and the energy accumulator group 18 is used for improving the response speed of the converter sliding plate slag-stopping composite hydraulic cylinder 1.
The utility model discloses a concrete use flow as follows:
under the normal production state of the converter, the converter sliding plate slag-stopping hydraulic control device adopts a quick response control unit.
(1) Before smelting in the converter, the sliding plate is opened.
Before converter smelting, a sliding plate opening instruction is sent, an electromagnet 1DT of a first electro-hydraulic directional valve 6 is electrified, a electromagnet 2DT is deenergized, an electromagnet 3DT of a second electro-hydraulic directional valve 10 is electrified, a electromagnet 4DT is deenergized, high-pressure oil enters a rod cavity of a first hydraulic cylinder 24 and a rod cavity of a second hydraulic cylinder 25 through a second stop valve 7 and a third stop valve 11, the first electro-hydraulic directional valve 6 and the second electro-hydraulic directional valve 10 pass through a second hydraulic one-way valve 5 and a third hydraulic one-way valve 9 and enter the rod cavity of the first hydraulic cylinder 24 and the rod cavity of the second hydraulic cylinder 25 together to push an adding piston to move rightwards, and meanwhile, hydraulic oil in a pressure cavity 26 of the first hydraulic cylinder 24 and a rodless cavity of the first hydraulic cylinder 24 respectively pass through the second hydraulic one-way valve 5 and the third hydraulic one-way valve 9 and pass through the first electro-hydraulic directional valve 6 and the second electro-hydraulic directional valve 10 and respectively.
(2) And after the smelting of the converter is finished, giving an instruction to close the sliding plate when the converter is shaken to the position of about 35 degrees.
The electromagnet 2DT of the first electro-hydraulic directional valve 6 is electrified, the electromagnet 1DT is electrified, meanwhile, the electromagnet 4DT of the second electro-hydraulic directional valve 10 is electrified, the electromagnet 3DT is electrified, high-pressure oil passes through the second stop valve 7 and connects the hydraulic oil of the rod cavity and the pressure cavity 26 of the first hydraulic cylinder 24 together through the first electro-hydraulic directional valve 6 to form a differential system, high-pressure third oil passes through the stop valve 11 and connects the hydraulic oil of the rod cavity and the rodless cavity of the second hydraulic cylinder 25 together through the first electro-hydraulic directional valve 10 to form a differential system, the pressure difference acting on the first piston 19 and the second piston 21 pushes the first piston 19 and the second piston 21 to rapidly move leftwards, and the closing of the converter sliding plate is realized.
(3) When the converter is shaken to 75-80 degrees, the molten steel completely floats upwards through the steel slag at the steel tapping hole, and an instruction is sent to open the sliding plate.
The electromagnet 1DT of the first electro-hydraulic directional valve 6 is electrified, the electromagnet 2DT is electrified, the electromagnet 3DT of the second electro-hydraulic directional valve 10 is electrified, the electromagnet 4DT is electrified, high-pressure oil enters a rod cavity of the first hydraulic cylinder 24 and a rod cavity of the second hydraulic cylinder 25 together through the second stop valve 7 and the third stop valve 11, the first electro-hydraulic directional valve 6, the second electro-hydraulic directional valve 10, the second electro-hydraulic directional valve 5, the third electro-hydraulic directional valve 9 and the rod cavity of the first hydraulic cylinder 24 to push the piston to move rightwards, and meanwhile, hydraulic oil in a pressure cavity 26 of the first hydraulic cylinder 24 and a rodless cavity of the first hydraulic cylinder 24 respectively flows back to an oil tank through the second electro-hydraulic directional valve 6, the second electro-hydraulic directional valve 10 and the second electro-hydraulic directional valve 12 and the third electro-hydraulic directional valve 16 respectively, so that the sliding plate is opened.
(4) After tapping, an infrared slag detector sends out an instruction to close the sliding plate after detecting the steel slag.
The electromagnet 2DT of the first electro-hydraulic directional valve 6 is electrified, the electromagnet 1DT is electrified, meanwhile, the electromagnet 4DT of the second electro-hydraulic directional valve 10 is electrified, the electromagnet 3DT is electrified, high-pressure oil passes through the second stop valve 7 and the first electro-hydraulic directional valve 6 to connect hydraulic oil of a rod cavity and a pressure cavity 26 of the second hydraulic cylinder 24 together to form a differential system, the high-pressure oil passes through the third stop valve 11 and the first electro-hydraulic directional valve 10 to connect hydraulic oil of a rod cavity and a rodless cavity of the second hydraulic cylinder 25 together to form a differential system, and pressure difference acting on the first piston 19 and the second piston 21 pushes the first piston 19 and the second piston 21 to rapidly move leftwards so as to close a converter sliding plate.
(5) And after the converter tilts reversely to 45 degrees, a command signal for opening the sliding plate slag stopping mechanism is sent, the sliding plate slag stopping mechanism is opened, residual steel slag in the steel outlet is discharged, so that molten steel and steel slag in the converter are emptied, the sliding plate slag stopping mechanism is closed, molten iron to be smelted is received, the converter is shaken right, and the molten steel of the next furnace is prepared for smelting.
And in the abnormal production state of the converter, the converter sliding plate slag-stopping hydraulic control device adopts a slow electromagnetic control unit.
(1) When a command of opening a converter sliding plate is sent, the electromagnet 8DT of the first electromagnetic directional valve 3 is electrified, the electromagnet 7DT is deenergized, the electromagnet 6DT of the second electromagnetic directional valve 14 is electrified, the electromagnet 5DT is deenergized, pressure oil enters the first electromagnetic directional valve 3 from the first stop valve 4, enters the rod cavity of the first hydraulic cylinder 24 through the first hydraulic control one-way valve 2, pushes the first piston 19 to move rightwards, pressure oil enters the second electromagnetic directional valve 14 from the fourth stop valve 15, enters the rod cavity of the second hydraulic cylinder 25 through the fourth hydraulic control one-way valve 13, pushes the second piston 21 to move rightwards, and meanwhile, hydraulic oil of the pressure cavity of the first hydraulic cylinder 24 and the hydraulic oil of the rodless cavity of the second hydraulic cylinder 25 return to an oil tank through the first hydraulic control one-way valve 2 and the fourth hydraulic control one-way valve 13, the first electromagnetic directional valve 3 and the second electromagnetic directional valve 14 and the first check valve 8 and the fourth check valve 17.
(2) When an instruction of closing a converter sliding plate is sent, the electromagnet 7DT of the first electromagnetic directional valve 3 is electrified, the electromagnet 8DT is electrified, the electromagnet 5DT of the second electromagnetic directional valve 14 is electrified, the electromagnet 6DT is electrified, pressure oil enters the first electromagnetic directional valve 3 from the first stop valve 4, enters the pressure cavity 26 of the first hydraulic cylinder 24 through the first hydraulic control one-way valve 2, pushes the first piston 19 to move leftwards, pressure oil enters the second electromagnetic directional valve 14 from the fourth stop valve 15, enters the rodless cavity of the second hydraulic cylinder 25 through the fourth hydraulic control one-way valve 13, pushes the second piston 21 to move leftwards, meanwhile, the hydraulic oil in the rod cavity of the first hydraulic cylinder 24 and the rod cavity of the second hydraulic cylinder 25 returns to the oil tank through the first check valve 8 and the fourth check valve 17 by the first pilot-controlled check valve 2 and the fourth pilot-controlled check valve 13, the first electromagnetic directional valve 3 and the second electromagnetic directional valve 14, respectively.
The utility model discloses an embodiment as follows:
the model of the first hydraulic control one-way valve 2 is Z2FS 10-20B;
the model of the second hydraulic control single direction 5 is Z2FS 22-1-5X;
the model of the third hydraulic control one-way valve 9 is Z2FS 22-1-5X;
the model of the fourth hydraulic control one-way valve 13 is Z2FS 10-20B;
the model of the first electromagnetic directional valve 3 is 4WE10J-3X/CG24N9K 4;
the model of the second electromagnetic directional valve 14 is 4WE10J-3X/CG24N9K 4;
the models of the first stop valve 4, the second stop valve 7, the third stop valve 11 and the fourth stop valve 15 are KHB-M36 multiplied by 2-1212-02X;
the model of the first electro-hydraulic reversing valve 6 and the model of the second electro-hydraulic reversing valve 10 are 4WEH22J7X/6HG24N9ETK 4/B10;
the models of the first check valve 8, the second check valve 12, the third check valve 16 and the fourth check valve 17 are M-SR15KE 05-10B;
the accumulator bank 18 is of the type NXQA-L40/31.5Y.
Claims (6)
1. The utility model provides a converter slide pushing off slag hydraulic control device which characterized in that: the hydraulic control system comprises a composite hydraulic cylinder (1), a first quick response control unit, a second quick response control unit, a first slow electromagnetic control unit and a second slow electromagnetic control unit, wherein the composite hydraulic cylinder (1) consists of a first hydraulic cylinder (24) and a second hydraulic cylinder (25), the first hydraulic cylinder (24) consists of a piston rod, a cylinder barrel (23), a first piston (19) and a partition plate (20), the second hydraulic cylinder (25) consists of a piston rod, a cylinder barrel (23), a partition plate (20) and a second piston (21), the first hydraulic cylinder (24) and the second hydraulic cylinder (25) share one piston rod, the cylinder barrel (23) and the partition plate (20), a pressure cavity is formed by enclosing of the outer surfaces of the first piston (19), the cylinder barrel (23), the partition plate (20) and the piston rod in the first hydraulic cylinder (24), the first quick response control unit is connected to the rod cavity and the pressure cavity of the first hydraulic cylinder (24) of the composite hydraulic cylinder (1) through oil pipes, the second quick response control unit is connected to a rod cavity and a rodless cavity of a second hydraulic cylinder (25) of the composite hydraulic cylinder (1) through an oil pipe, the first slow electromagnetic control unit is connected with the oil pipe of the first quick response control unit connected with the composite hydraulic cylinder (1) through the oil pipe, and the second slow electromagnetic control unit is connected with the oil pipe of the second quick response control unit connected with the composite hydraulic cylinder (1) through the oil pipe.
2. The hydraulic control device for converter sliding plate slag stopping according to claim 1, characterized in that: the first quick response control unit is composed of a second hydraulic control one-way valve (5), a first electro-hydraulic directional valve (6), a second stop valve (7) and a second one-way valve (12), the second hydraulic control one-way valve (5) is connected with a rod cavity and a pressure cavity of a first hydraulic cylinder (24) of the composite hydraulic cylinder (1) through oil pipes, the first electro-hydraulic directional valve (6) is connected with the second hydraulic control one-way valve (5), the second stop valve (7) and the second one-way valve (12) are respectively connected with the first electro-hydraulic directional valve (6), and a main oil way of the converter sliding plate slag blocking hydraulic control device is respectively connected with the second stop valve (7) and the second one-way valve (12).
3. The hydraulic control device for converter sliding plate slag stopping according to claim 1, characterized in that: the second quick response control unit consists of a third hydraulic control one-way valve (9), a second electro-hydraulic reversing valve (10), a third stop valve (11) and a third one-way valve (16), the third hydraulic control one-way valve (9) is connected with a rod cavity and a rodless cavity of a second hydraulic cylinder (25) of the composite hydraulic cylinder (1) through oil pipes, the second electro-hydraulic reversing valve (10) is connected with the third hydraulic control one-way valve (9), the third stop valve (11) and the third one-way valve (16) are respectively connected with the second electro-hydraulic reversing valve (10), and a main oil way of the converter sliding plate slag blocking hydraulic control device is respectively connected with the third stop valve (11) and the third one-way valve (16).
4. The hydraulic control device for converter sliding plate slag stopping according to claim 1, characterized in that: the first slow electromagnetic control unit is composed of a first hydraulic control one-way valve (2), a first electromagnetic directional valve (3), a first stop valve (4) and a first one-way valve (8), the first hydraulic control one-way valve (2) is connected with an oil pipe of the first fast response control unit connection composite hydraulic cylinder (1) through the oil pipe, the first electromagnetic directional valve (3) is connected with the first hydraulic control one-way valve (2), the first stop valve (4) and the first one-way valve (8) are respectively connected with the first electromagnetic directional valve (3), and a main oil way of the converter sliding plate slag blocking hydraulic control device is respectively connected with the first stop valve (4) and the first one-way valve (8).
5. The hydraulic control device for converter sliding plate slag stopping according to claim 1, characterized in that: the second slow electromagnetic control unit is composed of a fourth hydraulic control one-way valve (13), a second electromagnetic directional valve (14), a fourth stop valve (15) and a fourth one-way valve (17), the fourth hydraulic control one-way valve (13) is connected with an oil pipe of the second fast response control unit connection composite hydraulic cylinder (1) through the oil pipe, the second electromagnetic directional valve (14) is connected with the fourth hydraulic control one-way valve (13), the fourth stop valve (15) and the fourth one-way valve (17) are respectively connected with the second electromagnetic directional valve (14), and a main oil way of the converter sliding plate slag blocking hydraulic control device is respectively connected with the fourth stop valve (15) and the fourth one-way valve (17).
6. The hydraulic control device for converter sliding plate slag stopping according to claim 1, characterized in that: the converter slag-stopping hydraulic control device is also provided with an energy accumulator group (18), wherein the energy accumulator group (18) is connected in parallel with a main oil way of the converter sliding plate slag-stopping hydraulic control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920468367.4U CN210127980U (en) | 2019-04-08 | 2019-04-08 | Converter slide pushing off slag hydraulic control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920468367.4U CN210127980U (en) | 2019-04-08 | 2019-04-08 | Converter slide pushing off slag hydraulic control device |
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| Publication Number | Publication Date |
|---|---|
| CN210127980U true CN210127980U (en) | 2020-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920468367.4U Active CN210127980U (en) | 2019-04-08 | 2019-04-08 | Converter slide pushing off slag hydraulic control device |
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| CN (1) | CN210127980U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110067780A (en) * | 2019-04-08 | 2019-07-30 | 宣化钢铁集团有限责任公司 | A kind of blocking dregs of converter furnace sliding plate hydraulic control device |
-
2019
- 2019-04-08 CN CN201920468367.4U patent/CN210127980U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110067780A (en) * | 2019-04-08 | 2019-07-30 | 宣化钢铁集团有限责任公司 | A kind of blocking dregs of converter furnace sliding plate hydraulic control device |
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