CN113102739B - A be built by contract device for pressure adds magnesium - Google Patents
A be built by contract device for pressure adds magnesium Download PDFInfo
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- CN113102739B CN113102739B CN202110234624.XA CN202110234624A CN113102739B CN 113102739 B CN113102739 B CN 113102739B CN 202110234624 A CN202110234624 A CN 202110234624A CN 113102739 B CN113102739 B CN 113102739B
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- sealing
- ladle
- ring
- hole
- box body
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C1/00—Refining of pig-iron; Cast iron
- C21C1/10—Making spheroidal graphite cast-iron
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/08—Making cast-iron alloys
- C22C33/10—Making cast-iron alloys including procedures for adding magnesium
- C22C33/12—Making cast-iron alloys including procedures for adding magnesium by fluidised injection
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The invention provides a ladle cover device for pressure magnesium adding, which belongs to the technical field of pressure magnesium adding and comprises a ladle cover, a plurality of clamping mechanisms and a sealing mechanism, wherein the ladle cover is provided with a first through hole for a lifting column to vertically slide, and is used for sealing an opening at the upper end of a spheroidizing ladle; the clamping mechanisms are arranged at the upper end of the ladle cover and distributed along the circumferential direction, and are used for tensioning the upper end edge of the spheroidizing ladle and generating tension between the ladle cover and the spheroidizing ladle, and the tension of the clamping mechanisms can be adjusted; the sealing mechanism is fixedly arranged at the center of the upper end of the ladle cover and is provided with a second through hole for the lifting column to pass through, the lifting column vertically slides in the sealing mechanism, and the sealing mechanism is connected with the lifting column in a sliding and sealing manner. The ladle covering device for pressure magnesium adding has the technical effects that the clamping force between the ladle cover and the spheroidizing ladle is large, the sealing performance between the lifting column on the ladle cover and the ladle cover is good, and potential safety hazards do not exist when the molten iron is subjected to magnesium adding spheroidizing.
Description
Technical Field
The invention belongs to the technical field of pressure magnesium adding, and particularly relates to a covering device for pressure magnesium adding.
Background
The nodular cast iron pipe is a pipe which is formed by adding nodulizer into cast molten iron with the size of more than 18 and then centrifugally casting the molten iron at a high speed by a centrifugal nodular cast iron machine; in the process of spheroidizing the molten iron, putting the molten iron into a spheroidizing bag, and arranging a magnesium gun on a ladle cover of the spheroidizing bag, wherein a magnesium ingot is arranged on the magnesium gun; in the prior art, when magnesium is added to molten iron for spheroidization, a ladle cover is directly pressed on a spheroidization ladle; because the pressure of the ladle cover to the spheroidizing ladle is smaller or the clamping force between the ladle cover and the spheroidizing ladle is smaller, the ladle cover is easy to jack up when the pressure intensity in the spheroidizing ladle is higher than the external pressure intensity, and potential safety hazards exist. In addition, the vertical sliding connection of lift post is on the be built by contract, and the lift post lower extreme is used for connecting the magnesium rifle, and the lift post is in the process of sliding from top to bottom, also leads to easily and the be not good with the leakproofness between the be built by contract to influence the pressure in the balling ladle and add the magnesium effect.
Disclosure of Invention
The invention aims to provide a ladle covering device for pressure magnesium adding, and aims to solve the technical problems that in the prior art, the clamping force between a ladle cover and a spheroidizing ladle is small, the sealing performance between a lifting column on the ladle cover and the ladle cover is poor, and potential safety hazards exist when magnesium is added to molten iron for spheroidizing.
In order to achieve the purpose, the invention adopts the technical scheme that: the ladle cover device for pressure magnesium adding comprises a ladle cover, a plurality of clamping mechanisms and a sealing mechanism, wherein the ladle cover is provided with a first through hole for a lifting column to vertically slide, and the ladle cover is used for sealing an opening at the upper end of a spheroidizing ladle; the clamping mechanisms are arranged at the upper end of the ladle cover and distributed along the circumferential direction, and are used for tensioning the upper end edge of the spheroidizing ladle and generating tension between the ladle cover and the spheroidizing ladle, and the tension of the clamping mechanisms can be adjusted; the sealing mechanism is fixedly arranged at the center of the upper end of the ladle cover and is provided with a second through hole for the lifting column to pass through, the lifting column vertically slides in the sealing mechanism, and the sealing mechanism is connected with the lifting column in a sliding and sealing manner.
As another embodiment of the application, the clamping mechanism comprises a frame body, a lifting part, a connecting ring, a clamping part, a propping part, a supporting part and a power mechanism, wherein the frame body is arranged on the bag cover; the lifting part is connected with the frame body in a sliding way along the vertical direction; the connecting ring is arranged on the spheroidizing bag; one end of the clamping part is hinged with the lifting part; one side of the clamping part, which is close to the frame body, is provided with a separation inclined plane and a clamping inclined plane; the abutting part is connected with the other end of the clamping part; the supporting part is arranged on the bag cover and is used for being abutted against the separation inclined plane or the clamping inclined plane so as to separate the abutting part from the lower surface of the connecting ring or abut against the lower surface of the connecting ring by the abutting part; the power mechanism is arranged on the frame body and connected with the lifting part to drive the lifting part to slide on the frame body; the power mechanism is used for driving the clamping part to move upwards so as to enable the clamping part to rotate under the action of gravity and enable the abutting part to abut against the lower surface of the connecting ring.
As another embodiment of the present application, a groove for rotation of the clamping portion is formed on the lifting portion, and the clamping portion is hinged to the groove through a rotating shaft; the lifting device is characterized in that a guide groove is formed in the frame body, a guide rod is arranged on the lifting portion, the guide rod is connected with the lifting portion and located in the guide groove, and the guide rod is used for guiding the sliding direction of the lifting portion.
As another embodiment of the application, the power mechanism comprises a screw and a driving motor, wherein the screw is rotatably connected with the frame body and is relatively fixed in position; the driving motor is arranged on the frame body, and the power output end of the driving motor is connected with the screw rod; the lifting part is provided with a threaded hole which is in threaded fit with the screw;
the clamping mechanism further comprises a limiting ring, and the limiting ring is arranged on the covering; the connecting ring is used for being sleeved in the limiting ring, and the limiting ring is provided with an avoiding groove for the abutting part to penetrate through.
As another embodiment of the present application, the sealing mechanism includes a box body, a sealing portion, a sealing plate, and an elastic assembly, the second through hole vertically passes through the center of the box body, and the second through hole is used for the lifting column to slide through; the sealing part is arranged between the box body and the lifting column, is positioned in the second through hole and is used for sealing a gap between the box body and the lifting column; the sealing plate is arranged in the box body and divides the box body into an upper cavity and a lower cavity; the sealing plate is connected with the box body in a sliding mode, and a third through hole for the lifting column to penetrate through is formed in the sealing plate; the elastic component is arranged in the box body, and two ends of the elastic component are respectively connected with the bottom of the inner side of the box body and the bottom end of the sealing plate and used for providing elastic force for the sealing plate.
As another embodiment of this application, also cup joint the sealing washer in the third through hole also be equipped with the sealing washer on the lateral wall of closing plate, the sealing washer is used for sealing the closing plate with gap and sealed between the lift post the closing plate with gap between the box body inside wall.
As another embodiment of the present application, the sealing portion includes a sealing cylinder and two connecting collars, an inner wall of the sealing cylinder abuts against the lifting column, and an outer wall of the sealing cylinder is connected with the box body; the two connecting lantern rings are respectively positioned at two ends of the sealing cylinder and are respectively used for contacting with the inner side and the outer side of the box body; the box body is provided with a groove for accommodating the connecting lantern ring; and a pull ring is arranged on the connecting lantern ring and is connected with the connecting lantern ring.
As another embodiment of the present application, the box body is provided with a connecting hole, and the connecting hole is communicated with the upper cavity; the connecting hole passes through the inboard intercommunication of pipeline and be equipped with the check valve on the pipeline, the check valve is used for the connecting hole with when the cavity of resorption communicates, make the gas of cavity of resorption is followed the connecting hole enters into the ladle and covers inboardly.
As another embodiment of the present application, a connecting pipe is disposed at one end of the pipeline, and the connecting pipe is rotatably connected to the pipeline and has a relatively fixed position; the connecting pipe is provided with external threads, the connecting hole is internally provided with internal threads, and the connecting pipe is in threaded fit with the connecting hole.
As another embodiment of this application, be equipped with the sealing ring on the connecting pipe, be equipped with the parcel layer on the screw thread of connecting pipe, the one end on parcel layer with the sealing ring is connected, the parcel layer is used for the parcel the thread of connecting pipe forms new thread, the parcel layer with connecting hole screw-thread fit.
The ladle covering device for pressure magnesium adding provided by the invention has the beneficial effects that: compared with the prior art, when the molten iron is spheroidized by adding magnesium, the ladle cover covers the spheroidizing ladle, the ladle cover is provided with a first through hole for the lifting column to vertically slide, and the ladle cover is used for sealing an opening at the upper end of the spheroidizing ladle; the clamping mechanisms are arranged at the upper end of the ladle cover and distributed along the circumferential direction, and are used for tensioning the upper end edge of the spheroidizing ladle and generating tension between the ladle cover and the spheroidizing ladle, and the tension of the clamping mechanisms can be adjusted; sealing mechanism sets firmly in the ladle cover upper end center, be equipped with the second through-hole that is used for the lift post to pass, the lift post is vertical slip in sealing mechanism, be sliding seal between sealing mechanism and the lift post and be connected, can guarantee the clamp force between ladle cover and the balling package, prevent that the ladle cover from jack-up in balling process, sealing performance is good between ladle cover and the lift post, it is little to solve the clamp force between ladle cover and the balling package among the prior art, the leakproofness is not good between lift post and the ladle cover on the ladle cover, there is the technical problem of potential safety hazard when adding magnesium balling to the molten iron, it is big to have the clamp force between ladle cover and the balling package, the leakproofness is good between lift post and the ladle cover on the ladle cover, there is not the technological effect of potential safety hazard when adding magnesium balling to the molten iron.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a ladle covering device for pressure magnesium addition according to an embodiment of the present invention;
FIG. 2 is a schematic view of a connecting collar portion of a covering device for pressure-adding magnesium according to an embodiment of the present invention;
FIG. 3 is an enlarged view of portion A of FIG. 2;
FIG. 4 is a schematic view of a clamping portion of a ladle covering device for adding magnesium under pressure according to an embodiment of the present invention;
FIG. 5 is a schematic view of a sealing mechanism provided in a ladle covering device for adding magnesium under pressure according to an embodiment of the present invention;
FIG. 6 is a schematic cross-sectional view of a box portion of a covering device for pressure-adding magnesium according to an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a pressurizing device for a ladle covering device for pressurizing magnesium according to an embodiment of the present invention;
FIG. 8 is a schematic cross-sectional view of a venting box portion of a pressurizing device for a magnesium pressure-adding ladle apparatus according to an embodiment of the present invention;
FIG. 9 is an enlarged view of portion B of FIG. 8;
fig. 10 is a schematic sectional view of an opening and closing ring portion of a pressurizing device for a pressure magnesium-adding ladle apparatus according to an embodiment of the present invention.
In the figure: 1. covering; 2. spheroidizing the ladle; 3. a second through hole; 4. a frame body; 41. a guide groove; 5. a lifting portion; 51. a groove; 52. a guide bar; 6. a connecting ring; 7. a clamping portion; 71. separating the inclined plane; 72. clamping the inclined plane; 8. a tightening part; 9. a support portion; 10. a limiting ring; 11. an avoidance groove; 12. a screw; 13. a drive motor; 14. a box body; 141. an upper chamber; 142. a lower cavity; 143. connecting holes; 144. a pipeline; 145. a connecting pipe; 146. a seal ring; 15. a sealing plate; 151. a third through hole; 16. a sealing cylinder; 161. a connecting lantern ring; 17. a pressurizing device; 18. an exhaust box; 181. an exhaust port; 19. a first conduit; 20. a second conduit; 21. an opening and closing assembly; 211. a shutter plate; 212. a guide bar; 213. a first spring; 22. opening a closed loop; 221. a tapered hole; 222. a closing part; 223. a second spring.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
Referring to fig. 1 to 6, a description will now be given of a ladle covering device for pressure magnesium addition according to the present invention. A ladle cover device for pressure magnesium adding comprises a ladle cover 1, a plurality of clamping mechanisms and a sealing mechanism, wherein a first through hole for a lifting column to slide vertically is formed in the ladle cover 1, and the ladle cover 1 is used for sealing an opening in the upper end of a spheroidizing ladle 2; the plurality of clamping mechanisms are arranged at the upper end of the ladle cover 1 and distributed along the circumferential direction, and are used for tensioning the upper end edge of the spheroidizing ladle 2 and generating tensioning force between the ladle cover 1 and the spheroidizing ladle 2, and the tensioning force of the clamping mechanisms can be adjusted; the sealing mechanism is fixedly arranged in the center of the upper end of the ladle cover 1 and is provided with a second through hole 3 for the lifting column to pass through, the lifting column vertically slides in the sealing mechanism, and the sealing mechanism is connected with the lifting column in a sliding and sealing manner. The lifting column is driven by a power device arranged on the ladle cover 1 to realize up-and-down sliding, so that the magnesium ingot can be contacted with molten iron.
Compared with the prior art, when the molten iron is subjected to magnesium adding and spheroidizing, the ladle cover 1 covers the spheroidizing ladle 2, the ladle cover 1 is provided with a first through hole for the vertical sliding of the lifting column, and the ladle cover 1 is used for sealing an opening at the upper end of the spheroidizing ladle 2; the clamping mechanisms are arranged at the upper end of the ladle cover 1 and distributed along the circumferential direction, and are used for tensioning the upper end edge of the spheroidizing ladle 2 and generating tension between the ladle cover 1 and the spheroidizing ladle 2, and the tension of the clamping mechanisms can be adjusted; sealing mechanism sets firmly in 1 upper end center of be built by contract, be equipped with the second through-hole 3 that is used for the lift post to pass, the lift post is vertical slip in sealing mechanism, be sliding seal connection between sealing mechanism and the lift post, can guarantee the clamp force between be built by contract 1 and balling package 2, prevent that the be built by contract 1 from jacking at balling in-process, sealing performance is good between be built by contract 1 and the lift post, it is little to solve the clamp force between be built by contract 1 and the balling package 2 among the prior art, the leakproofness is not good between lift post on the be built by contract 1 and the be built by contract 1, there is the technical problem of potential safety hazard when adding magnesium balling to the molten iron, it is big to have the clamp force between be built by contract 1 and the balling package 2, the leakproofness is good between lift post on the be built by contract 1 and the be built by contract 1, there is not the technological effect of potential safety hazard when adding magnesium balling to the molten iron.
As a specific embodiment of the present invention, please refer to fig. 1 to 6, the clamping mechanism includes a frame body 4, a lifting portion 5, a connecting ring 6, a clamping portion 7, a pressing portion 8, a supporting portion 9 and a power mechanism, wherein the frame body 4 is disposed on the bag cover 1; the lifting part 5 is connected with the frame body 4 in a sliding way along the vertical direction; the connecting ring 6 is arranged on the spheroidizing bag 2; one end of the clamping part 7 is hinged with the lifting part 5; a separating inclined surface 71 and a clamping inclined surface 72 are arranged on one side of the clamping part 7 close to the frame body 4; the abutting part 8 is connected with the other end of the clamping part 7; the supporting part 9 is arranged on the bag cover 1 and is used for being abutted against the separation inclined surface 71 or the clamping inclined surface 72 so as to separate the abutting part 8 from the lower surface of the connecting ring 6 or make the abutting part 8 abut against the lower surface of the connecting ring 6; the power mechanism is arranged on the frame body 4 and connected with the lifting part 5 to drive the lifting part 5 to slide on the frame body 4; the power mechanism is used for driving the clamping part 7 to move upwards so as to enable the clamping part 7 to rotate under the action of gravity and enable the abutting part 8 to abut against the lower surface of the connecting ring 6.
Specifically, after the magnesium adding and spheroidizing of the molten iron are finished, the lifting part 5 is driven to slide downwards through the power mechanism, the clamping part 7 can move downwards, the supporting part 9 is abutted to the separation inclined surface 71 through the clamping inclined surface 72, therefore, the clamping part 7 can rotate around the articulated shaft in the downward movement process, and further the abutting part 8 is separated from the lower surface of the connecting ring 6 through rotation in the descending process, so that the ladle cover 1 is separated from the spheroidizing ladle 2, and the magnesium adding and spheroidizing of the molten iron are finished.
As a specific embodiment of the ladle covering device for pressure magnesium adding provided by the present invention, please refer to fig. 1 to 6, a groove 51 for rotation of the clamping portion 7 is provided on the lifting portion 5, and the clamping portion 7 is hinged to the groove 51 through a rotating shaft; the frame body 4 is provided with a guide groove 41, the lifting part 5 is provided with a guide rod 52, the guide rod 52 is connected with the lifting part 5 and is positioned in the guide groove 41, and the guide rod 52 is used for guiding the sliding direction of the lifting part 5.
As a specific embodiment of the covering device for pressure magnesium addition provided by the present invention, please refer to fig. 1 to 6, the power mechanism includes a screw 12 and a driving motor 13, the screw 12 is rotatably connected with the frame body 4, and the position of the screw is relatively fixed; the driving motor 13 is arranged on the frame body 4, and the power output end of the driving motor 13 is connected with the screw 12; the lifting part 5 is provided with a threaded hole which is in threaded fit with the screw 12;
specifically, the clamping mechanism further comprises a limiting ring 10, and the limiting ring 10 is arranged on the ladle cover 1; the connecting ring 6 is used for being sleeved in the limiting ring 10, and an avoiding groove 11 for the abutting part 8 to penetrate through is formed in the limiting ring 10.
Specifically, the end part of the clamping part 7 can rotate in the groove 51 conveniently through the groove 51 arranged on the lifting part 5, so that the abutting part 8 can abut against or separate the lower surface of the connecting ring 6 conveniently, the ladle cover 1 can be fixed on the spheroidizing bag 2 in the process of magnesium adding spheroidizing of molten iron, and the situation that the ladle cover 1 is separated from the spheroidizing bag 2 is reduced; the connecting ring 6 is fixed on the spheroidizing bag 2, and the connecting ring 6 is positioned on the outer wall of the spheroidizing bag 2 and close to the top of the spheroidizing bag 2; the frame body 4 is fixed on the top of the bag cover 1 and is positioned at the edge of the bag cover 1, and the supporting part 9 is fixed on the bag cover 1.
Specifically, the guide rod 52 is fixed on the lifting part 5, and the outer wall of the guide rod 52 is attached to the side wall of the guide groove 41; in the process that the lifting part 5 slides on the frame body 4, the guide rod 52 can guide the sliding direction of the lifting part 5, and the deviation of the lifting part 5 is reduced, so that the abutting part 8 abuts against the lower surface of the connecting ring 6 or the abutting part 8 is separated from the lower surface of the connecting ring 6.
Specifically, the driving motor 13 is fixed on the frame body 4, and a power output end of the driving motor 13 is connected with one end of the screw 12 and is used for driving the screw 12 to rotate; after the screw 12 rotates, because the lifting portion 5 is provided with a screw hole, and the guide rod 52 can guide the lifting portion 5, the lifting portion 5 can slide along the axis direction of the screw 12, which is convenient for driving the clamping portion 7 to slide in the vertical direction, and therefore, the clamping portion 7 can rotate conveniently, so that the abutting portion 8 abuts against the lower surface of the connecting ring 6 or the abutting portion 8 is separated from the lower surface of the connecting ring 6, and the ladle cover 1 can be conveniently fixed on the spheroidizing ladle 2 when the magnesium is added to the molten iron for spheroidizing.
Specifically, the clamping mechanism further comprises a limiting ring 10, and the limiting ring 10 is arranged on the ladle cover 1; the connecting ring 6 is sleeved in the limiting ring 10, and the limiting ring 10 is provided with an avoiding groove 11 for the abutting part 8 to pass through; the limiting ring 10 is fixed at the bottom of the ladle cover 1, and after the ladle cover 1 is covered on the spheroidizing ladle 2, the outer wall of the connecting ring 6 is contacted with the inner wall of the limiting ring 10; because the spacing ring 10 is provided with the avoiding groove 11, the abutting part 8 can penetrate through the avoiding groove 11 and abut against the lower surface of the connecting ring 6, thereby being convenient for fixing the ladle cover 1 on the spheroidizing bag 2; through the cooperation of spacing ring 10 and go-between 6, can strengthen the leakproofness between be built by contract 1 and balling package 2, be convenient for add the magnesium balling to the molten iron in the balling package 2.
Specifically, the abutting portion 8 is provided with an elastic sheet, one end of the elastic sheet is fixedly connected with the abutting portion 8, and the other end of the elastic sheet is a free end; the elastic sheet is used for being abutted against the lower surface of the connecting ring 6 so as to tightly abut against the connecting ring 6; the abutting part 8 is contacted with the lower surface of the connecting ring 6 through an elastic sheet, so that the frame body 4 and the clamping part 7 are matched to clamp the ladle cover 1 on the spheroidizing ladle 2; in the process of adding magnesium to molten iron for spheroidizing, the ladle cover 1 can be fixed on the spheroidizing ladle 2 all the time.
Specifically, the abutting part 8 is provided with a cushion pad, and the cushion pad is used for contacting with the lower surface of the connecting ring 6 so as to reduce the abrasion between the abutting part 8 and the connecting ring 6; the buffer pad is fixed on one side of the abutting portion 8 close to the connecting ring 6, and the abutting portion 8 is in contact with the connecting ring 6 through the buffer pad, so that abrasion between the abutting portion 8 and the connecting ring 6 can be reduced, and use of the abutting portion 8 and the connecting ring 6 is facilitated.
Specifically, the clamping part 7 is provided with a balancing weight, and the balancing weight is detachably connected with the clamping part 7; the balancing weight and the clamping part 7 are in one or more of clamping connection, insertion connection and bolt connection; in the present embodiment, the bolt connection is described as an example; the balancing weight passes through the bolt to be connected with clamping part 7, can increase the quantity of balancing weight on clamping part 7, consequently at the in-process that promotes clamping part 7, the clamping part 7 of being convenient for rotates around the pin joint under the action of gravity of self, consequently is convenient for support tight portion 8 and support tightly to the lower surface of go-between 6.
As a specific embodiment of the capping device for pressure magnesium addition according to the present invention, please refer to fig. 1 to 6, the sealing mechanism includes a box 14, a sealing portion, a sealing plate 15 and an elastic component, the second through hole 3 vertically passes through the center of the box 14, and the second through hole 3 is used for a lifting column to slide through; the sealing part is arranged between the box body 14 and the lifting column, is positioned in the second through hole 3 and is used for sealing a gap between the box body 14 and the lifting column; the sealing plate 15 is disposed in the case 14 and divides the case 14 into an upper chamber 141 and a lower chamber 142; the sealing plate 15 is connected with the box body 14 in a sliding way, and a third through hole 151 for the lifting column to pass through is arranged on the sealing plate 15; the elastic component is arranged in the box body 14, and two ends of the elastic component are respectively connected with the bottom of the inner side of the box body 14 and the bottom end of the sealing plate 15 and used for providing elastic force for the sealing plate 15.
Specifically, the box body 14 is connected with the lifting column through the sealing part, so that the joint of the lifting column and the ladle cover 1 can be initially sealed, and the sealing performance of the lifting column and the ladle cover 1 can be improved; the sealing plate 15 arranged in the box body 14 can further seal the gas entering the box body 14, so that the overflowing gas is reduced, and the gas leakage is reduced conveniently; the elastic member can provide elastic force to the sealing plate 15, so that the lower cavity 142 maintains a certain air pressure, which is convenient for improving the sealing performance between the lower cavity 142 and the ladle cover 1, thereby facilitating the spheroidization of molten iron.
Referring to fig. 1 to 6, a sealing ring is sleeved in the third through hole 151, a sealing ring is also disposed on a side wall of the sealing plate 15, and the sealing ring is used for sealing a gap between the sealing plate 15 and the lifting column and a gap between the sealing plate 15 and an inner side wall of the box body 14.
As a specific embodiment of the capping device for adding magnesium by pressure according to the present invention, please refer to fig. 1 to 6, the sealing portion includes a sealing cylinder 16 and two connecting collars 161, an inner wall of the sealing cylinder 16 abuts against the lifting column, and an outer wall of the sealing cylinder 16 is connected with the box body 14; the two connecting collars 161 are respectively positioned at two ends of the sealing cylinder 16, and the two connecting collars 161 are respectively used for contacting with the inner side and the outer side of the box body 14; the box body 14 is provided with a groove for accommodating the connecting sleeve ring 161; the connecting collar 161 is provided with a pull ring, and the pull ring is connected with the connecting collar 161.
Specifically, the connection collar 161 is fixedly connected with the sealing cylinder 16; the sealing cylinder 16 is positioned in the second through hole 3; by arranging the sealing cylinder 16 in the second through hole 3 and arranging the connecting collars 161 at the two ends of the sealing cylinder 16, on one hand, the sealing between the lifting column and the box body 14 can be enhanced, and on the other hand, the connection between the sealing cylinder 16 and the box body 14 can be enhanced; in the sliding process of the lifting column on the box body 14, the sealing cylinder 16 is limited by the two connecting lantern rings 161, so that the situation that the sealing cylinder 16 is separated from the box body 14 can be reduced, and the sealing cylinder 16 can seal the joint of the lifting column and the box body 14 conveniently.
Specifically, a pull ring is arranged on the connecting sleeve ring 161 and connected with the connecting sleeve ring 161; the connecting sleeve ring 161 is placed in the groove, so that the connection between the connecting sleeve ring 161 and the box body 14 can be enhanced, and the connection between the lifting column and the box body 14 is convenient to seal; the pull ring is arranged on the outer wall of the box body 14 and is fixedly connected with the connecting sleeve ring 161; due to the elasticity of the connection collar 161, after damage to the sealing cylinder 16 occurs, the sealing cylinder 16 can be pulled out of the box body 14 by pulling the pull ring, thereby facilitating replacement of the sealing cylinder 16.
As a specific embodiment of the capping device for pressure magnesium addition according to the present invention, please refer to fig. 1 to 6, a connecting hole 143 is formed on the case body 14, and the connecting hole 143 is communicated with the upper chamber 141; the connection hole 143 communicates with the inside of the pack cover 1 through a pipe 144, and the pipe 144 is provided with a check valve for allowing the gas of the lower chamber 142 to enter the inside of the pack cover 1 from the connection hole 143 when the connection hole 143 communicates with the lower chamber 142.
Specifically, the gas in the nodulizing package 2 leaks into the lower cavity 142, the pressure in the lower cavity 142 rises and pushes the sealing plate 15 to slide in the box body 14, when the sealing plate 15 slides to the connecting hole 143 to be communicated with the lower cavity 142, the gas in the lower cavity 142 enters the pipeline 144 through the connecting hole 143 and enters the nodulizing package 2 after the one-way valve is pushed open, so that the gas leaking to the outside of the nodulizing package 2 can be reduced, and the nodulizing of the molten iron is facilitated.
As a specific embodiment of the covering device for pressure magnesium adding according to the present invention, please refer to fig. 1 to 6, one end of the pipe 144 is provided with a connecting pipe 145, the connecting pipe 145 is rotatably connected to the pipe 144 and has a relatively fixed position; the connecting pipe 145 is provided with an external thread, the connecting hole 143 is provided with an internal thread, and the connecting pipe 145 is in threaded fit with the connecting hole 143.
Specifically, the other end of the pipe 144 is in threaded connection with the ladle cover 1; because the positions of the connecting pipe 145 and the pipeline 144 are relatively fixed, the pipeline 144 is in threaded connection with the box body 14 through the connecting pipe 145, the pipeline 144 can be communicated with the box body 14 without rotating the pipeline 144, and the pipeline 144 can be conveniently detached from the box body 14 and the bag cover 1, so that the pipeline 144 can be conveniently overhauled.
As a specific embodiment of the capping device for pressure magnesium addition according to the present invention, referring to fig. 1 to 6, a sealing ring 146 is disposed on the connection pipe 145, a wrapping layer is disposed on the thread of the connection pipe 145, one end of the wrapping layer is connected to the sealing ring 146, the wrapping layer is used for wrapping the thread of the connection pipe 145 and forming a new thread, and the wrapping layer is in threaded engagement with the connection hole 143.
Specifically, the wrapping layer has elasticity, and after the wrapping layer is in threaded fit with the connecting hole 143, the connecting pipe 145 can be fixed on the box body 14 on one hand, and sealing can be facilitated on the other hand, so that gas leaked from the connecting hole 143 is reduced; after the connection pipe 145 is screwed to the connection hole 143, the seal ring 146 abuts against the outer wall of the case body 14, and gas leakage from the connection hole 143 is further reduced.
Specifically, the elastic component comprises a spring, and two ends of the spring are respectively connected with the sealing plate 15 and the box body 14; the two ends of the spring are respectively fixedly connected with the sealing plate 15 and the box body 14, and the spring can provide elastic force for the sealing plate 15, so that the lower cavity 142 can form certain pressure, and the gas leaking to the lower cavity 142 can be reduced conveniently.
Specifically, the elastic component comprises an elastic plate which is of an arc-shaped structure; the two ends of the elastic plate are respectively connected with the sealing plate 15 and the box body 14; two ends of the elastic plate are respectively fixedly connected with the sealing plate 15 and the box body 14; because the elastic plate is of an arc-shaped structure, the elastic plate can provide elastic force to the sealing plate 15, so that the lower cavity 142 forms certain pressure, and gas leaking to the lower cavity 142 is reduced.
Further, referring to fig. 7 to 10, the apparatus for covering a bale of the present invention further includes a pressurizing apparatus 17 disposed on the bale cover, the pressurizing apparatus 17 is disposed on the bale cover 1 and includes an exhaust box 18, a first pipe 19, a second pipe 20 and an opening and closing assembly 21; the exhaust box 18 is arranged above the bag cover 1 and is provided with an exhaust port 181; two ends of the first pipeline 19 are respectively communicated with the ladle cover 1 and the exhaust box 18, and the exhaust gas enters the exhaust box 18; the second pipeline 20 is arranged in the first pipeline 19, one end of the second pipeline penetrates through the exhaust box 18, and the other end of the second pipeline is positioned in the bag cover 1; the outer end of the second pipeline 20 is communicated with an air source to ventilate the spheroidizing bag 2; the opening and closing assembly 21 is provided on the exhaust box 18 for opening or closing the exhaust port 181.
Compared with the prior art, when the spheroidizing bag 2 is pressurized, the waste gas in the spheroidizing bag 2 enters the exhaust box 18 through the first pipeline 19, the gas source enters the spheroidizing bag 2 through the second pipeline 20, and the second pipeline 20 is sleeved in the first pipeline 19, so the waste gas enters the exhaust box 18 from between the first pipeline 19 and the second pipeline 20, and the waste gas heats the gas in the second pipeline 20, so that the temperature of the gas entering the spheroidizing bag 2 is increased, the absorption of the gas on the energy of the molten iron surface is reduced, and the influence of the gas on the molten iron is reduced; the opening and closing component 21 on the exhaust box 18 can keep a certain pressure on the spheroidizing bag 2, and when the pressure in the exhaust box 18 is higher, the opening and closing component 21 opens the exhaust port 181 to discharge the gas in the exhaust box 18.
Referring to fig. 7 to 10, the portion of the second pipe 20 located in the exhaust box 18 is distributed in a serpentine shape, and the second pipe 20 is in a serpentine shape in the exhaust box 18, so that the path of the gas passing through the second pipe 20 can be extended, and the waste gas in the exhaust box 18 can heat the gas in the second pipe 20, thereby reducing the energy absorbed by the gas from the molten iron, and facilitating the magnesium adding and spheroidizing of the molten iron.
Referring to fig. 7 to 10, the opening/closing assembly 21 includes an opening/closing plate 211 and a first elastic member, wherein the opening/closing plate 211 is located at the exhaust port 181 and is used for closing the exhaust port 181; both ends of the first elastic member are respectively connected with the opening and closing plate 211 and the exhaust box 18 so that the opening and closing plate 211 closes the exhaust port 181; the opening and closing assembly 21 further comprises a guide rod 212, the guide rod 212 is slidably connected with the exhaust box 18, and one end of the guide rod 212 is connected with the opening and closing plate 211; the guide rods 212 are fixedly connected with the opening and closing plate 211, the air outlet 181 is a rectangular hole, and the four guide rods 212 are respectively positioned at four end positions of the air outlet 181; the first elastic element is a first spring 213, the first spring 213 is positioned in the exhaust box 18, and two ends of the first spring 213 are respectively fixedly connected with the opening and closing plate 211 and the exhaust box 18; the opening and closing plate 211 is positioned outside the exhaust box 18, the opening and closing plate 211 is used for closing the exhaust port 181, and a sealing ring is arranged at the joint of the opening and closing plate 211 and the exhaust port 181; the first spring 213 provides an elastic force to the opening and closing plate 211, so that the opening and closing plate 211 always closes the exhaust port 181; when the pressure in the exhaust box 18 is high, the gas in the exhaust box 18 pushes the closing plate 211 to open, and is discharged from the gap between the opening and closing plate 211 and the exhaust port 181, so as to reduce the pressure in the exhaust box 18.
Referring to fig. 7 to 10, an opening and closing ring 22 is disposed between the second pipe 20 and the first pipe 19, a tapered hole 221 is disposed on the opening and closing ring 22, and a smaller end of the tapered hole 221 faces the ladle cover 1; a closed part 222 is arranged on the tapered hole 221, a second elastic part is arranged on the closed part 222, and two ends of the second elastic part are respectively used for being connected with the closed part 222 and the open-close ring 22; the number of the tapered holes 221 is several, and the several tapered holes 221 are distributed along the circumferential direction of the opening and closing ring 22; when the pressure in the spheroidizing bag 2 is higher, the gas in the spheroidizing bag 2 can quickly enter the exhaust box 18 through the plurality of tapered holes 221, so that a certain pressure is conveniently kept in the spheroidizing bag 2; the second elastic element is a second spring 223, and two ends of the second spring 223 are respectively fixedly connected with the closing part 222 and the open-close ring 22; the second spring 223 provides an elastic force to the closing portion 222, and can close the closing portion 222 to the tapered hole 221; the opening and closing ring 22 is fixed on the inner wall of the first pipeline 19, and the opening and closing ring 22 is used for maintaining the pressure in the spheroidizing bag 2; when the pressure in the balling ladle 2 is high, the gas pushes the closed part 222 open and enters the exhaust box 18 from the tapered hole 221, so that a certain pressure is kept in the balling ladle 2; the pressure of the top opening closing part 222 is greater than that of the top opening closing plate 211, and a certain pressure can be kept in the spheroidizing ladle 2 through the matching of the top opening closing plate 211 and the closing part 222, so that the magnesium adding spheroidizing of the molten iron is facilitated.
Referring to fig. 7 to 10, one end of the first pipe 19 is rotatably connected to the exhaust box 18 and the position thereof is relatively fixed; the other end of the first pipeline 19 is connected with the screw rod of the ladle cover 1; a sealing part is arranged at the joint of the first pipeline 19 and the ladle cover 1; the outer side end of the second pipeline 20 is provided with a quick connector which is used for being communicated with an air source through a hose; the exhaust box 18 can be conveniently installed on the ladle cover 1 or the exhaust box 18 can be conveniently detached from the ladle cover 1 by screwing the first pipeline 19 with the ladle cover 1; the first pipeline 19 is rotatably connected with the exhaust box 18, and the positions of the first pipeline 19 and the exhaust box 18 are relatively fixed, so that the first pipeline 19 is conveniently in threaded connection with the ladle cover 1; the sealing portion between first pipeline 19 and the be the sealing washer, the sealing washer can increase the sealing performance between first pipeline 19 and the be built by contract 1, second pipeline 20 passes through quick-operation joint and hose intercommunication to through hose and air supply intercommunication, can make second pipeline 20 follow be built by contract 1 together motion at the in-process that the be built by contract 1 goes up and down, consequently, the gas in the air supply of being convenient for enters into balling package 2 behind second pipeline 20.
Referring to fig. 7 to 10, a support rod is disposed on the exhaust box 18, one end of the support rod is connected to the exhaust box 18, and the other end is connected to the bag cover 1 to support the exhaust box 18; a plurality of support rods are arranged, one end of each support rod is fixedly connected with the exhaust box 18, and the other end of each support rod is abutted against the top of the bag cover 1; the exhaust case 18 is supported by the support rods, so that the stability of the exhaust case 18 can be increased, thereby facilitating the use of the exhaust case 18.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. A ladle covering device for pressure adding magnesium, comprising:
the ladle cover is provided with a first through hole for the vertical sliding of the lifting column, and the ladle cover is used for sealing an opening at the upper end of the spheroidizing ladle;
the clamping mechanisms are arranged at the upper end of the ladle cover and distributed along the circumferential direction, and are used for tensioning the upper end edge of the spheroidizing ladle and generating tension between the ladle cover and the spheroidizing ladle, and the tension of the clamping mechanisms can be adjusted; and
the sealing mechanism is fixedly arranged at the center of the upper end of the ladle cover and is provided with a second through hole for the lifting column to pass through, the lifting column vertically slides in the sealing mechanism, and the sealing mechanism is in sliding sealing connection with the lifting column;
the sealing mechanism includes:
the second through hole vertically penetrates through the center of the box body, and the second through hole is used for the lifting column to penetrate in a sliding manner;
the sealing part is arranged between the box body and the lifting column, is positioned in the second through hole and is used for sealing a gap between the box body and the lifting column;
the sealing plate is arranged in the box body and divides the box body into an upper cavity and a lower cavity; the sealing plate is connected with the box body in a sliding manner, and a third through hole for the lifting column to pass through is formed in the sealing plate; and
the elastic component is arranged in the box body, and two ends of the elastic component are respectively connected with the bottom of the inner side of the box body and the bottom end of the sealing plate and used for providing elasticity for the sealing plate;
the box body is provided with a connecting hole which is communicated with the upper cavity; the connecting hole passes through the inboard intercommunication of pipeline and be equipped with the check valve on the pipeline, the check valve is used for the connecting hole with when the cavity of resorption communicates, make the gas of cavity of resorption is followed the connecting hole enters into the ladle and covers inboardly.
2. A ladle covering device for magnesium press as recited in claim 1 wherein said clamping mechanism comprises:
the frame body is arranged on the bag cover;
the lifting part is connected with the frame body in a sliding mode along the vertical direction;
the connecting ring is arranged on the spheroidizing bag;
the clamping part is hinged with the lifting part at one end; a separation inclined plane and a clamping inclined plane are arranged on one side, close to the frame body, of the clamping part;
the abutting part is connected with the other end of the clamping part;
the supporting part is arranged on the bag cover and is used for being abutted against the separation inclined plane or the clamping inclined plane so as to enable the abutting part to be separated from the lower surface of the connecting ring or enable the abutting part to abut against the lower surface of the connecting ring; and
the power mechanism is arranged on the frame body, is connected with the lifting part and drives the lifting part to slide on the frame body;
the power mechanism is used for driving the clamping part to move upwards so as to enable the clamping part to rotate under the action of gravity and enable the abutting part to abut against the lower surface of the connecting ring.
3. The covering device for pressure magnesium adding as claimed in claim 2, wherein the lifting portion is provided with a groove for rotation of the holding portion, and the holding portion is hinged to the groove through a rotating shaft; the lifting device is characterized in that a guide groove is formed in the frame body, a guide rod is arranged on the lifting portion, the guide rod is connected with the lifting portion and located in the guide groove, and the guide rod is used for guiding the sliding direction of the lifting portion.
4. The covering device for adding magnesium under pressure as claimed in claim 3, wherein the power mechanism comprises a screw and a driving motor, the screw is rotatably connected with the frame body and is relatively fixed in position; the driving motor is arranged on the frame body, and the power output end of the driving motor is connected with the screw rod; the lifting part is provided with a threaded hole which is in threaded fit with the screw;
the clamping mechanism further comprises a limiting ring, and the limiting ring is arranged on the covering; the connecting ring is used for being sleeved in the limiting ring, and the limiting ring is provided with an avoiding groove for the abutting part to penetrate through.
5. The apparatus as claimed in claim 1, wherein a sealing ring is further sleeved in the third through hole, and a sealing ring is further disposed on a sidewall of the sealing plate, the sealing ring being used to seal a gap between the sealing plate and the lifting column and a gap between the sealing plate and an inner sidewall of the box body.
6. The covering device for pressure magnesium adding according to claim 1, wherein the sealing part comprises a sealing cylinder and two connecting lantern rings, the inner wall of the sealing cylinder abuts against the lifting column, and the outer wall of the sealing cylinder is connected with the box body; the two connecting lantern rings are respectively positioned at two ends of the sealing cylinder and are respectively used for contacting with the inner side and the outer side of the box body; the box body is provided with a groove for accommodating the connecting lantern ring; and a pull ring is arranged on the connecting lantern ring and is connected with the connecting lantern ring.
7. The covering device for pressure adding of magnesium as claimed in claim 1, wherein one end of the pipe is provided with a connecting pipe, the connecting pipe is rotatably connected with the pipe and is fixed relatively to the pipe; the connecting pipe is provided with external threads, the connecting hole is internally provided with internal threads, and the connecting pipe is in threaded fit with the connecting hole.
8. The apparatus as claimed in claim 7, wherein the connecting pipe is provided with a sealing ring, the connecting pipe is provided with a coating layer on its thread, one end of the coating layer is connected to the sealing ring, the coating layer is used to coat the thread of the connecting pipe and form a new thread, and the coating layer is in threaded engagement with the connecting hole.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110234624.XA CN113102739B (en) | 2021-03-03 | 2021-03-03 | A be built by contract device for pressure adds magnesium |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110234624.XA CN113102739B (en) | 2021-03-03 | 2021-03-03 | A be built by contract device for pressure adds magnesium |
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| CN113102739A CN113102739A (en) | 2021-07-13 |
| CN113102739B true CN113102739B (en) | 2023-02-28 |
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| CN114381566B (en) * | 2022-02-14 | 2024-05-03 | 新兴河北工程技术有限公司 | Pressure adds magnesium be built by contract clamping device |
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| JP4150368B2 (en) * | 2004-09-06 | 2008-09-17 | 株式会社タナベ | Rotary kiln seal structure |
| CN210030767U (en) * | 2019-04-09 | 2020-02-07 | 新兴铸管股份有限公司 | Magnesium adding spheroidizing equipment |
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| US4421256A (en) * | 1981-10-02 | 1983-12-20 | United States Steel Corporation | Sliding gate valve having adjustable seal pressure |
| JPH0814765A (en) * | 1994-06-29 | 1996-01-19 | Kawasaki Steel Corp | Lid-sealing device for molten metal container |
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| CN113102739A (en) | 2021-07-13 |
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