CN218080309U

CN218080309U - In-process temperature increasing device for different-place casting of molten iron

Info

Publication number: CN218080309U
Application number: CN202222293075.6U
Authority: CN
Inventors: 马宁; 马志; 赵乐峰; 雷金碧
Original assignee: Ningxia Shengyan Industrial Group Energy Recycling Economy Co ltd
Current assignee: Ningxia Shengyan Industrial Group Energy Recycling Economy Co ltd
Priority date: 2022-08-30
Filing date: 2022-08-30
Publication date: 2022-12-20
Anticipated expiration: 2032-08-30

Abstract

The utility model provides a hot metal is cast in strange land and is increased temperature device in transit, including the ladle, the package seat, lift rotation mechanism, blow oxygen rifle, the package lid subassembly, the ladle activity is placed on the package seat, be equipped with lift rotation mechanism on package seat one side, blow oxygen rifle and locate lift rotation mechanism, in order to send into or send out the ladle inner chamber with blow oxygen rifle through lift rotation mechanism, the package lid subassembly includes first blast pipe, second blast pipe, the package lid, the second blast pipe sets firmly in package seat one side, the one end of second blast pipe is the free end, the other end of second blast pipe is connected with the one end of first blast pipe is rotated, be equipped with the exhaust hole on the package lid, the other end of first blast pipe is connected with the exhaust hole of package lid, blow oxygen to the ladle through blowing oxygen rifle, blow oxygen rifle inserts the molten iron liquid level 1000mm and blow oxygen, oxygen pressure ≧ 0.3mpa makes oxygen and molten iron fully contact and react. The oxygen blowing can lead the molten iron and the oxygen to generate oxidation reaction to release heat, thereby increasing the temperature of the molten iron to about 1500 ℃.

Description

In-process temperature increasing device for different-place casting of molten iron

Technical Field

The utility model relates to a ladle technical field, in particular to hot metal strange land casting is heating device in the middle of.

Background

The ladle is used for receiving molten iron and transporting casting equipment. The high manganese pig iron and molten iron produced in the production process of the manganese-rich slag is different from the molten iron for common steelmaking in nature, the temperature of the high manganese pig iron and molten iron just discharged is 1150-1250 ℃, and the temperature of a high manganese pig iron ladle in the transfer process can be reduced in a remote casting mode with a longer transfer distance, so that the high manganese pig iron and molten iron in the high manganese pig iron ladle is stuck due to low temperature, and the normal production is influenced.

Disclosure of Invention

In view of the above, it is necessary to provide an in-process temperature increasing device for hot metal different-place casting.

The ladle is movably placed on the ladle seat, the lifting swing mechanism is arranged on one side of the ladle seat, the oxygen blowing gun is arranged on the lifting swing mechanism and is used for sending the oxygen blowing gun into or out of an inner cavity of the ladle through the lifting swing mechanism, the ladle cover component comprises a first exhaust pipe, a second exhaust pipe and a ladle cover, the second exhaust pipe is fixedly arranged on one side of the ladle seat, one end of the second exhaust pipe is a free end, the other end of the second exhaust pipe is rotatably connected with one end of the first exhaust pipe, an exhaust hole is formed in the ladle cover, and the other end of the first exhaust pipe is connected with the exhaust hole of the ladle cover.

Preferably, the ladle cover is provided with an oxygen blowing hole.

Preferably, lift rotation mechanism includes montant, base, horizontal pole, the lower extreme and the base of montant rotate to be connected, the one end of horizontal pole and the upper end sliding connection of montant, the other end of horizontal pole is the free end, the upper end of inner tube is connected with the free end of horizontal pole.

Preferably, the lifting and slewing mechanism comprises a winch and a fixed pulley, the fixed pulley is provided with the top end of a vertical rod, the winch comprises a winding drum and a steel wire rope, one end of the steel wire rope winds the winding drum, and the other end of the steel wire rope winds the fixed pulley and is connected with the cross rod.

Preferably, lift rotation mechanism still includes rotating electrical machines, first fluted disc, second fluted disc, chain, rotating electrical machines's output is located to first fluted disc, and first fluted disc rotates with rotating electrical machines's output synchronization, the second fluted disc is located on the montant, second fluted disc and montant synchronization rotation, first fluted disc and second fluted disc pass through chain drive and connect.

Preferably, the hot metal allopatric casting in-transit heating device further comprises a pit, and the ladle seat is arranged in the pit.

Preferably, a retaining wall is surrounded around the pit.

Preferably, the hot metal allopatric casting in-transit heating device further comprises an oxygen supply mechanism, wherein the oxygen supply mechanism comprises an oxygen pipeline and a soft oxygen supply pipe, one end of the oxygen pipeline is connected with an oxygen source, the other end of the oxygen pipeline is connected with one end of the soft oxygen supply pipe, and the other end of the soft oxygen supply pipe is connected with the upper end of the inner pipe.

Preferably, the oxygen suppliment mechanism still includes the manual stop valve of first manual stop valve, second, electrical control valve, electric trip valve, the manual stop valve of first manual stop valve and second is located on the oxygen pipeline, electrical control valve and electric trip valve are located on the oxygen pipeline between the manual stop valve of first manual stop valve and second, electric trip valve is close to the setting of oxygen hose.

Preferably, the oxygen suppliment mechanism still includes the spark arrester, the spark arrester is located on the oxygen pipeline, the spark arrester is located and is close to the setting of oxygen hose.

Compared with the prior art, the beneficial effects of the utility model reside in that:

and in the process of transferring the ladle, blowing oxygen into the ladle through an oxygen blowing lance, inserting the oxygen blowing lance into the liquid level of molten iron for blowing oxygen by 1000mm, and enabling oxygen to be in full contact with the molten iron under the oxygen pressure not less than 0.3mpa so as to perform reaction. The oxygen blowing can lead the molten iron and the oxygen to generate oxidation reaction to release heat, thereby increasing the temperature of the molten iron to about 1500 ℃. During the transportation of the ladle, when oxygen is blown to the ladle through the oxygen blowing lance, the ladle cover is additionally arranged to play an active role in the temperature rise of the ladle, and meanwhile, the ladle cover also has the function of a dust hood, so that the diffusion of smoke in the oxygen blowing process is reduced.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the in-transit temperature increasing device for the allopatric casting of molten iron.

Fig. 2 is a schematic structural diagram of a second embodiment of the in-transit molten iron temperature increasing device for different-place casting.

Fig. 3 is a front view of the rotary joint.

Fig. 4 is a front view of the swivel joint.

Fig. 5 is a cross-sectional view of the rotational connection.

In the figure: the ladle 10, a ladle seat 20, a lifting and slewing mechanism 30, a vertical rod 31, a base 32, a cross bar 33, a winch 34, a winding drum 341, a steel wire rope 342, a fixed pulley 35, a rotating motor 36, a first toothed disc 37, a second toothed disc 38, a chain 39, an oxygen blowing lance 40, an inner pipe 41, a fire-resistant layer 42, a pit 50, a retaining wall 60, an oxygen supply mechanism 70, an oxygen pipeline 71, an oxygen supply pipe soft 72, a first manual stop valve 73, a second manual stop valve 74, an electric regulating valve 75, an electric stop valve 76, a fire arrestor 77, a ladle cover assembly 80, a first exhaust pipe 81, a second exhaust pipe 82, a ladle cover 83, a rotating connecting piece 84, an upper connecting cylinder 841, a lower connecting cylinder 842, a blocking edge 843, a sealing ring 844 and soft sealing filler 845.

Detailed Description

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Referring to fig. 1, an embodiment of the present invention provides a hot metal hot-place casting in-transit heating device, including a ladle 10, a ladle seat 20, a lifting rotation mechanism 30, an oxygen blowing lance 40, and a ladle cover assembly 80, wherein the ladle 10 is movably placed on the ladle seat 20, the lifting rotation mechanism 30 is disposed on one side of the ladle seat 20, the oxygen blowing lance 40 is disposed on the lifting rotation mechanism 30, so as to send the oxygen blowing lance 40 into or out of an inner cavity of the ladle 10 through the lifting rotation mechanism 30, the ladle cover assembly 80 includes a first exhaust pipe 81, a second exhaust pipe 82, and a ladle cover 83, the second exhaust pipe 82 is fixedly disposed on one side of the ladle seat 20, one end of the second exhaust pipe 82 is a free end, the other end of the second exhaust pipe 82 is rotatably connected with one end of the first exhaust pipe 81, an exhaust hole is disposed on the ladle cover 83, and the other end of the first exhaust pipe 81 is connected with the exhaust hole of the ladle cover 83. For example, the flap 83 is a conical cover.

The diameter of the ladle is 380mm, the height of the ladle is 700mm, and the shell is wrapped by a steel pipe. The molten iron is filled into the position of 200mm of the edge of 10 ladles of the ladle. The length of the inner tube 41 covered by the refractory layer 42 is such that the lower end of the inner tube 41 extends upward by 2000mm, and the length of the exposed part of the upper end of the inner tube 41 is not less than 620mm.

The ladle holder 20 is installed in a designated area of a foundry. The term "the ladle 10 is movably placed on the ladle seat 20" means that the ladle 10 is lifted to the ladle seat 20 by a transportation device such as a crane when oxygen blowing is required for the ladle 10, and the ladle 10 is lifted to a pig casting machine by the crane after the oxygen blowing is finished.

and blowing oxygen to the ladle 10 through an oxygen blowing lance 40 in the process of transferring the ladle 10, inserting the oxygen blowing lance 40 into the molten iron liquid level for blowing oxygen by 1000mm, and enabling the oxygen to be in full contact with the molten iron under the oxygen pressure being not less than 0.3mpa so as to react. The oxygen blowing can lead the molten iron and the oxygen to generate oxidation reaction to release heat, thereby increasing the temperature of the molten iron to about 1500 ℃. During the transportation of the ladle 10, the ladle cover 83 is additionally arranged to play a positive role in raising the temperature of the ladle 10 while oxygen is blown to the ladle 10 through the oxygen blowing lance 40, and meanwhile, the ladle cover 83 also has the function of a dust hood, so that the diffusion of smoke in the oxygen blowing process is reduced.

Referring to fig. 1, further, an oxygen blowing hole is provided on the ladle cover 83. The lance 40 passes through the lance holes into the ladle 10.

Referring to fig. 3 to 5, further, the ladle cover assembly 80 further includes a rotary connector 84, the rotary connector 84 includes an upper connecting cylinder 841, a lower connecting cylinder 842, the upper end of the upper connecting cylinder 841 is sealed, the lower end of the upper connecting cylinder 841 is provided with a mounting hole, the lower end of the upper connecting cylinder 841 is sealed, the upper end of the upper connecting cylinder 841 is provided with a flange 843, the outer diameter of the lower connecting cylinder 842 is equal to the diameter of the mounting hole, the outer diameter of the flange 843 is greater than the inner diameter of the mounting hole, the outer diameter of the flange 843 is less than the inner diameter of the connecting cylinder 841 on the mounting hole, a sealing ring 844 is installed between the inner wall of the upper connecting cylinder 841 and the outer wall of the lower connecting cylinder 842, an annular groove is formed on the inner annular wall of the sealing ring 844, and a soft sealing filler 845 is filled in the annular groove.

The soft sealing filler 845 is, for example, a layer-cut sealing filler, the layer-cut sealing filler adjacent to the lower connecting cylinder 842 rotates synchronously with the lower connecting cylinder 842 to form a "rotating layer", i.e., no relative friction is generated, and the layer-cut sealing filler adjacent to the inside of the annular groove forms a "stationary layer" to play a sealing role.

Referring to fig. 1, the lifting and swiveling mechanism 30 further includes a vertical rod 31, a base 32, and a cross rod 33, wherein the lower end of the vertical rod 31 is rotatably connected to the base 32, one end of the cross rod 33 is slidably connected to the upper end of the vertical rod 31, the other end of the cross rod 33 is a free end, and the upper end of the inner tube 41 is connected to the free end of the cross rod 33. The inner tube 41 and the cross bar 33 may be secured relative to each other using a fastening clip.

Referring to fig. 2, further, the swing mechanism 30 includes a winch 34 and a fixed pulley 35, the fixed pulley 35 is provided with a top end of the vertical rod 31, the winch 34 includes a winding drum 341 and a steel cable 342, one end of the steel cable 342 goes around the winding drum 341, and the other end of the steel cable 342 goes around the fixed pulley 35 and is connected with the cross bar 33.

Referring to fig. 2, further, the lifting and slewing mechanism 30 further includes a rotating motor 36, a first toothed disc 37, a second toothed disc 38, and a chain 39, the first toothed disc 37 is disposed at an output end of the rotating motor 36, the first toothed disc 37 rotates synchronously with the output end of the rotating motor 36, the second toothed disc 38 is disposed on the vertical rod 31, the second toothed disc 38 rotates synchronously with the vertical rod 31, and the first toothed disc 37 and the second toothed disc 38 are in transmission connection through the chain 39.

Referring to fig. 2, further, the hot metal allopatric casting on-the-way temperature increasing device further comprises a pit 50, and the ladle seat 20 is arranged in the pit 50.

Referring to fig. 2, further, a retaining wall 60 is wrapped around the pit 50. The retaining wall 60 is made of concrete, and the width of the retaining wall 60 is 300mm.

Referring to fig. 2, further, the hot metal allopatric casting in-transit heating device further comprises an oxygen supply mechanism 70, the oxygen supply mechanism 70 comprises an oxygen pipeline 71 and an oxygen supply tube hose 72, one end of the oxygen pipeline 71 is connected with an oxygen gas source, the other end of the oxygen pipeline 71 is connected with one end of the oxygen supply tube hose 72, and the other end of the oxygen supply tube hose 72 is connected with the upper end of the inner tube 41.

Referring to fig. 2, the oxygen supply mechanism 70 further includes a first manual cut-off valve 73, a second manual cut-off valve 74, an electric control valve 75, and an electric cut-off valve 76, wherein the first manual cut-off valve 73 and the second manual cut-off valve 74 are disposed on the oxygen pipe 71, the electric control valve 75 and the electric cut-off valve 76 are disposed on the oxygen pipe 71 between the first manual cut-off valve 73 and the second manual cut-off valve 74, and the electric cut-off valve 76 is disposed near the oxygen hose.

Referring to fig. 2, the oxygen supply mechanism 70 further includes a flame arrester 77, the flame arrester 77 is disposed on the oxygen pipe 71, and the flame arrester 77 is disposed near the oxygen hose.

The oxygen supply pipe hose 72 is DN60 metal hose, the first manual stop valve 73 is the first manual stop valve 73 of DN60, the second manual stop valve 74 is the manual stop valve 74 of DN60 second, the electric regulating valve 75 is DN60 electric regulating valve 75, the electric stop valve 76 is DN60 electric stop valve 76, and the flame arrester 77 is DN60 flame arrester 77.

Referring to fig. 2, the lance 40 further includes an inner pipe 41, a refractory layer 42 formed by coating a castable material on an outer wall of the inner pipe 41, and the refractory layer 42 is disposed at a lower end of the inner pipe 41.

In the transit process of the ladle 10, oxygen is blown into the ladle 10 through the oxygen blowing lance 40, oxygen and manganese elements in the molten iron can generate chemical reaction, and the generated Mn0 is separated out in the form of slag, so that the manganese content in the molten iron is reduced.

Referring to fig. 2, the inner tube 41 is made of stainless steel. More specifically, the inner pipe 41 is a stainless steel pipe having a diameter of 60mm × 4 mm.

The embodiment of the utility model provides a module or unit in the device can merge, divide and subtract according to actual need.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made without departing from the spirit and scope of the invention.

Claims

1. The in-transit temperature increasing device for the different-place casting of the molten iron is characterized in that: including ladle, package seat, lift rotation mechanism, oxygen blowing lance, ladle cover subassembly, the ladle activity is placed on the package seat, is equipped with lift rotation mechanism on package seat one side, the oxygen blowing lance is located on the lift rotation mechanism to will blow the oxygen blowing lance and send into or see off the ladle inner chamber through lift rotation mechanism, the ladle cover subassembly includes first blast pipe, second blast pipe, ladle cover, the second blast pipe sets firmly in package seat one side, the one end of second blast pipe is the free end, the other end of second blast pipe is rotated with the one end of first blast pipe and is connected, is equipped with the exhaust hole on the ladle cover, the other end of first blast pipe and the exhaust joggle joint of ladle cover.

2. The in-process temperature increasing device for allopatric casting of molten iron according to claim 1, characterized in that: the ladle cover is provided with an oxygen blowing hole.

3. The in-process temperature increasing device for allopatric casting of molten iron according to claim 1, characterized in that: the oxygen blowing lance comprises an inner tube, the lifting rotary mechanism comprises a vertical rod, a base and a cross rod, the lower end of the vertical rod is rotatably connected with the base, one end of the cross rod is slidably connected with the upper end of the vertical rod, the other end of the cross rod is a free end, and the upper end of the inner tube is connected with the free end of the cross rod.

4. The in-process temperature increasing device for allopatric casting of molten iron according to claim 3, characterized in that: the lifting rotary mechanism comprises a winch and a fixed pulley, the fixed pulley is provided with the top end of a vertical rod, the winch comprises a winding drum and a steel wire rope, one end of the steel wire rope winds the winding drum, and the other end of the steel wire rope winds the fixed pulley and is connected with a cross rod.

5. The hot metal allopatric casting in-transit heating device according to claim 3, characterized in that: the lifting slewing mechanism further comprises a rotating motor, a first fluted disc, a second fluted disc and a chain, wherein the output end of the rotating motor is arranged on the first fluted disc, the first fluted disc synchronously rotates with the output end of the rotating motor, the second fluted disc is arranged on a vertical rod, the second fluted disc synchronously rotates with the vertical rod, and the first fluted disc and the second fluted disc are connected through chain transmission.

6. The hot metal allopatric casting in-transit heating device according to claim 1, wherein: the hot metal allopatric casting in-transit heating device further comprises a pit, and the ladle seat is arranged in the pit.

7. The in-process temperature increasing device for the allopatric casting of the molten iron according to claim 6, characterized in that: and retaining walls are surrounded around the pit.

8. The hot metal allopatric casting in-transit heating device according to claim 1, wherein: the in-transit heating device for the different-place casting of the molten iron further comprises an oxygen supply mechanism, wherein the oxygen supply mechanism comprises an oxygen pipeline and an oxygen supply tube hose, one end of the oxygen pipeline is connected with an oxygen source, the other end of the oxygen pipeline is connected with one end of the oxygen supply tube hose, and the other end of the oxygen supply tube hose is connected with the upper end of the inner tube.

9. The hot metal allopatric casting in-transit heating device according to claim 8, wherein: the oxygen supply mechanism further comprises a first manual stop valve, a second manual stop valve, an electric regulating valve and an electric cut-off valve, wherein the first manual stop valve and the second manual stop valve are arranged on an oxygen pipeline, the electric regulating valve and the electric cut-off valve are arranged on the oxygen pipeline between the first manual stop valve and the second manual stop valve, and the electric cut-off valve is close to an oxygen hose.

10. The in-process temperature increasing device for the allopatric casting of the molten iron according to claim 9, characterized in that: the oxygen supply mechanism further comprises a flame arrester, the flame arrester is arranged on the oxygen pipeline, and the flame arrester is arranged close to the oxygen hose.