CN211866176U - Be used for hot continuous rolling apparatus for producing of stainless steel JM2 steel grade - Google Patents
Be used for hot continuous rolling apparatus for producing of stainless steel JM2 steel grade Download PDFInfo
- Publication number
- CN211866176U CN211866176U CN202020421678.8U CN202020421678U CN211866176U CN 211866176 U CN211866176 U CN 211866176U CN 202020421678 U CN202020421678 U CN 202020421678U CN 211866176 U CN211866176 U CN 211866176U
- Authority
- CN
- China
- Prior art keywords
- heat preservation
- mill
- pressure
- vertical roll
- vertical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a rolling apparatus for hot continuous rolling of stainless steel JM2 steel grade, including heating furnace, heat preservation passageway, roughing mill, finishing mill, coiling machine, heating furnace one side is equipped with the heat preservation passageway, and heat preservation passageway one side is equipped with a plurality of roughing mills, communicates through the heat preservation passageway between roughing mill and the roughing mill, and last roughing mill one side is equipped with a plurality of finishing mills, communicates through the heat preservation passageway between last roughing mill and the finishing mill, communicates through the heat preservation passageway between finishing mill and the finishing mill, and last finishing mill one side is equipped with the coiling machine; the utility model discloses make full use of high pressure side air jet mechanism cleans the steel billet when the steel billet passes through the heat preservation passageway, reduces the use of descaling water in the past, only establishes high-pressure dephosphorization water I and high-pressure descaling water II in roughing mill's entrance and exit, can prevent effectively through changing the edger roll that the defect from appearing in slab both sides limit, and first edger roll and tail edger roll can produce the displacement of certain distance through the dashpot, guarantee the surface quality on both sides limit.
Description
Technical Field
The utility model belongs to the technical field of the stainless steel rolling equipment, in particular to be used for hot continuous rolling apparatus for producing of stainless steel JM2 steel grade.
Background
The JM2 stainless steel is a representative steel grade of stainless steel with the content ratio of 18 percent of chromium to 8 percent of nickel, has the characteristics of good processing performance and high toughness, and is widely used in industry, furniture decoration industry and food medical industry;
however, the following problems are liable to occur during the rolling production: 1) the JM2 stainless steel has stronger wear resistance, the heat rapidly decreases after the heating output of the heating furnace is finished, the temperature further decreases after dephosphorization, the rolling production of the JM2 stainless steel is more unfavorable, and the wear degree of a roller is accelerated; 2) when the JM2 stainless steel sheet is produced, defects are easy to occur on two side edges, and the rejection rate of products is improved.
Disclosure of Invention
The utility model aims at overcoming not enough among the prior art, providing one kind and being used for hot continuous rolling apparatus for producing of stainless steel JM2 steel grade, use through the cooperation of high pressure side jet mechanism and descaling water, can fully remain rolling in-process when guaranteeing to get rid of surperficial iron oxide the temperature demand, guarantee rolling going on smoothly, can effectively prevent that slab both sides limit from appearing the defect through changing the edger roll.
In order to realize the purpose, the utility model discloses a technical scheme is:
a hot continuous rolling production device for stainless steel JM2 steel comprises a heating furnace, a heat preservation channel, a roughing mill, a finishing mill and a coiling machine, wherein the heat preservation channel is arranged on one side of the heating furnace, a plurality of roughing mills are arranged on one side of the heat preservation channel, the roughing mill is communicated with the roughing mill through the heat preservation channel, a plurality of finishing mills are arranged on one side of the last roughing mill, the last roughing mill is communicated with the finishing mill through the heat preservation channel, the finishing mill is communicated with the finishing mill through the heat preservation channel, the coiling machine is arranged on one side of the last finishing mill, and the finishing mill is connected with the coiling machine through a conveying roller;
the heat preservation channel comprises a heat preservation cover, a high-pressure side air injection mechanism and a power connection mechanism; one side of the heat-insulating cover is provided with a plurality of power connecting mechanisms, and one side of each power connecting mechanism is provided with a plurality of high-pressure side air injection mechanisms; the steel billet conveyed out of the heating furnace is subjected to certain heat preservation through the heat preservation cover, the conveying roller is driven by the power connecting mechanism to convey the steel billet, and the surface of the steel billet is cleaned and sprayed by the high-pressure side air spraying mechanism in the conveying process to remove foreign matters on the surface of the steel billet;
the high-pressure side gas spraying mechanism comprises a high-pressure nozzle, a communicating pipe, a gas filtering pipe, a gas storage pipe, a fixing ring and a threaded connecting pipe, wherein the communicating pipe is arranged on one side of the high-pressure nozzle, the gas filtering pipe is arranged on one side of the communicating pipe, the gas storage pipe is arranged on one side of the gas filtering pipe, the fixing ring is arranged on one side of the gas storage pipe, and the threaded connecting pipe is arranged on one side of the; be connected with workshop high-pressure air pipe through threaded connection pipe, the inside filter core that is equipped with of gas filter prevents to contain the dust in the gas, and the jet-propelled air storage pipe that enters into behind the threaded connection pipe of high pressure caches, prevents that high-pressure gas from damaging the filter core in the gas filter pipe, and further gas passes through communicating pipe after filtering, further pressurizes the blowout through high pressure nozzle.
The roughing mill comprises a base, a frame, high-pressure descaling water I, a roller, an electric appliance power box, high-pressure descaling water II and a vertical roller; one side of the base is provided with a rack, one side of the rack is provided with high-pressure descaling water II, one side of the high-pressure descaling water II is provided with a plurality of rollers, one side of each roller is provided with a plurality of vertical rollers, the other side of the rack is provided with high-pressure descaling water I, and the other side of each vertical roller is provided with an electric appliance power box; the roughing mill provides operation power through an electric appliance power box, oxide skins on the surfaces of the billets are further cleaned through high-pressure descaling water, the billets are rolled through a roller, and two side edges of the slabs are rolled through vertical rollers;
the vertical rolls comprise a first vertical roll, a middle vertical roll, a tail vertical roll, a buffer groove and a fixing groove, wherein one side of the first vertical roll is provided with a group of middle vertical rolls, one side of each middle vertical roll is provided with the tail vertical roll, one side of each vertical roll is provided with the fixing groove, and the buffer groove is formed in one side of the first vertical roll and one side of each tail vertical roll; when the JM2 stainless steel sheet is roughly rolled, the two side edges pass through the first vertical roller, the first vertical roller can generate displacement with a certain distance through the buffer groove, the sheet is prevented from generating cracks due to overlarge rolling force, the two side edges can be normally rolled and formed through the middle vertical roller, the displacement with a certain distance is still generated through the tail vertical roller, and the surface quality of the two side edges is ensured.
Preferably, the heating furnace comprises a furnace door and a discharge port, and the furnace door is arranged on one side of the discharge port; after the billet is heated, the furnace door is opened, so that the billet can enter the heat preservation channel through the discharge hole.
Preferably, first edger roll includes spring, lug, spring one side is equipped with the lug, lug and first edger roll fixed connection, and spring coupling is between first edger roll and dashpot, and both ends all are equipped with spring and lug about the first edger roll, and when rolling the steel billet, first edger roll produces the displacement and makes the spring shrink, prevents that the rolling power is too big when guaranteeing rolling direction.
Preferably, the tail vertical roller and the first vertical roller have the same structure and comprise springs and lugs; and the surface quality of the steel plates on the two sides is ensured when the steel plates are discharged from the roughing mill.
Compared with the prior art, the utility model beneficial effect shows:
1) through changing the traditional dephosphorization mode, the high-pressure side air injection mechanism is fully utilized to clean and sweep the steel billet when the steel billet passes through the heat preservation channel, the use of the previous descaling water is reduced, and the high-pressure descaling water I and the high-pressure descaling water II are only arranged at the inlet and the outlet of the roughing mill, so that the temperature requirement in the rolling process can be fully kept while the surface iron oxide is removed, and the smooth rolling is ensured.
2) Can prevent effectively through changing the edger roll that defects from appearing in slab both sides limit, when steel sheet both sides limit through first edger roll, first edger roll can produce the displacement of certain distance through the dashpot, prevents that the too big messenger's sheet metal of rolling force from producing the crackle, through middle edger roll, can carry out normal roll forming to both sides limit, still produces the displacement of certain distance through last edger roll, guarantees the surface quality on both sides limit, prevents that the defect from appearing in the slab.
Drawings
FIG. 1 is a schematic structural view of a hot continuous rolling production device for stainless steel JM2 steel of the utility model;
FIG. 2 is another schematic structural view of a hot continuous rolling production device for stainless steel JM2 of the present invention;
FIG. 3 is a cross sectional view of the vertical roller of the hot continuous rolling production device for stainless steel JM2 of the utility model;
FIG. 4 is a schematic structural view of a vertical roll of a hot continuous rolling production device for stainless steel JM2 of the utility model;
FIG. 5 is a schematic diagram of a high-pressure side air-jet structure in a hot continuous rolling production device for stainless steel JM2 of the utility model;
in the figure: 1. heating furnace; 11. a furnace door; 12. a discharge port; 2. a heat preservation channel; 21. a heat-preserving cover; 22. a high pressure side air injection mechanism; 221. a high pressure nozzle; 222. a communicating pipe; 223. a gas filtering pipe; 224. a gas storage pipe; 225. a fixing ring; 226. a threaded connection pipe; 23. a power connection mechanism; 3. a roughing mill; 31. a base; 32. a frame; 33. high-pressure descaling water I; 34. rolling; 35. an electric appliance power box; 36. high-pressure descaling water II; 37. vertical rolls; 371. a first vertical roll; 3711. a spring; 3712. a bump; 372. a middle vertical roll; 373. tail vertical roll; 374. a buffer tank; 375. and fixing the grooves.
Detailed Description
For the convenience of understanding of those skilled in the art, the technical solution of the present invention will be further specifically described with reference to fig. 1 to 5.
A hot continuous rolling production device for stainless steel JM2 steel comprises a heating furnace 1, a heat preservation channel 2, a roughing mill 3, a finishing mill and a coiling machine, wherein the heat preservation channel 2 is arranged on one side of the heating furnace 1, a plurality of roughing mills 3 are arranged on one side of the heat preservation channel 2, the roughing mill is communicated with the roughing mill through the heat preservation channel 2, a plurality of finishing mills are arranged on one side of the last roughing mill 3, the last roughing mill is communicated with the finishing mill through the heat preservation channel 2, the finishing mill is communicated with the finishing mill through the heat preservation channel 2, the coiling machine is arranged on one side of the last finishing mill, and the finishing mill is connected with the coiling machine through a conveying roller;
the heat preservation channel 2 comprises a heat preservation cover 21, a high-pressure side air injection mechanism 22 and a power connection mechanism 23; a plurality of power connecting mechanisms 23 are arranged on one side of the heat-insulating cover 21, and a plurality of high-pressure side air injection mechanisms 22 are arranged on one side of each power connecting mechanism 23; the billet steel conveyed out of the heating furnace 1 is subjected to certain heat preservation through the heat preservation cover 21, the conveying roller is driven by the power connecting mechanism 23 to convey the billet steel, and the surface of the billet steel is cleaned and sprayed by the high-pressure side air spraying mechanism 22 in the conveying process to remove foreign matters on the surface of the billet steel;
the high-pressure side gas injection mechanism 22 comprises a high-pressure nozzle 221, a communicating pipe 222, a gas filtering pipe 223, a gas storage pipe 224, a fixing ring 225 and a threaded connecting pipe 226, wherein the communicating pipe 222 is arranged on one side of the high-pressure nozzle 221, the gas filtering pipe 223 is arranged on one side of the communicating pipe 222, the gas storage pipe 224 is arranged on one side of the gas filtering pipe 223, the fixing ring 225 is arranged on one side of the gas storage pipe 224, and the threaded connecting pipe 226 is arranged on one side of the; be connected with workshop high-pressure gas pipe through threaded connection pipe 226, gas filter pipe 223 is inside to be equipped with the filter core and prevents to contain the dust in the gas, and the jet-propelled gas of high pressure enters into gas storage pipe 224 after entering threaded connection pipe 226 and caches, prevents that high-pressure gas from damaging the filter core in gas filter pipe 223, and further gas passes through communicating pipe 222 after filtering, further pressurizes the blowout through high-pressure nozzle 221.
The roughing mill 3 comprises a base 31, a frame 32, high-pressure descaling water I33, a roller 34, an electric appliance power box 35, high-pressure descaling water II 36 and a vertical roller 37; a rack 32 is arranged on one side of the base 31, high-pressure descaling water II 36 is arranged on one side of the rack 32, a plurality of rollers 34 are arranged on one side of the high-pressure descaling water II 36, a plurality of vertical rollers 37 are arranged on one side of the rollers 34, high-pressure descaling water I33 is arranged on the other side of the rack 32, and an electric appliance power box 35 is arranged on the other side of the vertical rollers 37; the roughing mill 3 provides operation power through an electric appliance power box 35, oxide skins on the surfaces of the billets are further cleaned through high-pressure descaling water, the billets are rolled through a roller 34, and two sides of the billets are rolled through vertical rollers 37;
the vertical rollers 37 comprise a first vertical roller 371, a middle vertical roller 372, a tail vertical roller 373, a buffer groove 374 and a fixing groove 375, wherein one group of middle vertical rollers 372 is arranged on one side of the first vertical roller 371, the tail vertical roller 373 is arranged on one side of the middle vertical roller 372, the fixing groove 375 is arranged on one side of each vertical roller 37, and the buffer groove 374 is arranged on one side of the first vertical roller 371 and the tail vertical roller 373; when carrying out rough rolling to JM2 stainless steel sheet metal, both sides limit passes through first edger 371, and first edger 371 can produce the displacement of certain distance through buffer tank 374, prevents that the too big messenger's sheet metal of rolling force from producing the crackle, through middle edger 372, can carry out normal roll forming to both sides limit, still produces the displacement of certain distance through end edger 373, guarantees the surface quality on both sides limit.
The heating furnace 1 comprises a furnace door 11 and a discharge hole 12, wherein the furnace door 11 is arranged on one side of the discharge hole 12; after the billet is heated, the furnace door 11 is opened, so that the billet can enter the heat preservation channel 2 through the discharge hole 12.
The first vertical roll 371 comprises a spring 3711 and a bump 3712, the bump 3712 is arranged on one side of the spring 3711, the bump 3712 is fixedly connected with the first vertical roll 371, the spring 3711 is connected between the first vertical roll 371 and the buffer groove 374, the spring 3711 and the bump 3712 are arranged at the upper end and the lower end of the first vertical roll 371, when a billet is rolled, the first vertical roll 371 displaces to enable the spring 3711 to contract, and the rolling direction is guaranteed while the rolling force is prevented from being too large.
The tail vertical roller 373 has the same structure as the first vertical roller 371, and both comprise a spring 3711 and a bump 3712; and the surface quality of the steel plates on the two sides is ensured when the steel plates are discharged from the roughing mill 3.
A heating furnace, a finishing mill and a coiler used in a hot continuous rolling production device of stainless steel JM2 steel are equipment in the prior art, the internal structure of the equipment is not stated one by one, and the specific working process is as follows:
the method comprises the steps of heating a plate blank by a heating furnace, removing certain oxide skin on the surface of the plate blank by high-pressure side air injection through a heat preservation channel, further conveying the plate blank to a plurality of passes of rough rolling mills through a conveying roller, carrying out rough rolling, enabling a roller to rotate to roll the plate blank by providing power by an electric appliance power box in the rough rolling mills, enabling two sides of a steel plate to pass through a first vertical roller in the rough rolling process, enabling the first vertical roller to generate displacement with a certain distance through a buffer groove, preventing cracks from being generated on the thin plate due to overlarge rolling force, carrying out normal roll forming on the two sides through a middle vertical roller, still generating displacement with a certain distance through a tail vertical roller, ensuring the surface quality of the two sides, preventing the plate blank from generating defects, further carrying out rough rolling on the plate blank by a plurality of rough rolling passes through a plurality of rough rolling passes of N passes of rough rolling, then carrying out finish.
The foregoing is merely exemplary and illustrative of the structure of the invention, and various modifications, additions and substitutions as described in the detailed description may be made by those skilled in the art without departing from the structure or exceeding the scope of the invention as defined in the claims.
Claims (4)
1. A hot continuous rolling production device for stainless steel JM2 steel comprises a heating furnace, a heat preservation channel, a roughing mill, a finishing mill and a coiling machine, wherein the heat preservation channel is arranged on one side of the heating furnace, a plurality of roughing mills are arranged on one side of the heat preservation channel, the roughing mill is communicated with the roughing mill through the heat preservation channel, a plurality of finishing mills are arranged on one side of the last roughing mill, the last roughing mill is communicated with the finishing mill through the heat preservation channel, the finishing mill is communicated with the finishing mill through the heat preservation channel, the coiling machine is arranged on one side of the last finishing mill, and the finishing mill is connected with the coiling machine through a conveying roller;
the heat insulation device is characterized in that the heat insulation channel comprises a heat insulation cover, a high-pressure side air injection mechanism and a power connection mechanism, wherein a plurality of power connection mechanisms are arranged on one side of the heat insulation cover, and a plurality of high-pressure side air injection mechanisms are arranged on one side of the power connection mechanisms;
the high-pressure side gas spraying mechanism comprises a high-pressure nozzle, a communicating pipe, a gas filtering pipe, a gas storage pipe, a fixing ring and a threaded connecting pipe, wherein the communicating pipe is arranged on one side of the high-pressure nozzle, the gas filtering pipe is arranged on one side of the communicating pipe, the gas storage pipe is arranged on one side of the gas filtering pipe, the fixing ring is arranged on one side of the gas storage pipe, and the threaded connecting pipe is arranged on one side of the;
the roughing mill comprises a base, a frame, high-pressure descaling water I, a roller, an electric appliance power box, high-pressure descaling water II and a vertical roller; one side of the base is provided with a rack, one side of the rack is provided with high-pressure descaling water II, one side of the high-pressure descaling water II is provided with a plurality of rollers, one side of each roller is provided with a plurality of vertical rollers, the other side of the rack is provided with high-pressure descaling water I, and the other side of each vertical roller is provided with an electric appliance power box;
the vertical roll comprises a first vertical roll, a middle vertical roll, a tail vertical roll, a buffer groove and a fixing groove, wherein the first vertical roll is provided with a group of middle vertical rolls on one side, the tail vertical roll is arranged on one side of the middle vertical roll, the fixing groove is arranged on one side of the vertical roll, and the buffer groove is arranged on one side of the first vertical roll and the tail vertical roll.
2. The hot continuous rolling production device for the stainless steel JM2 according to claim 1, wherein the heating furnace comprises a furnace door and a discharge port, and the side of the discharge port is provided with the furnace door.
3. The hot continuous rolling production device for the stainless steel JM2 steel according to claim 1, wherein the first vertical roll comprises a spring and a bump, and the bump is arranged on one side of the spring.
4. The hot continuous rolling production device for the stainless steel JM2 steel according to claim 1, wherein the last vertical roll is identical in structure to the first vertical roll.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020421678.8U CN211866176U (en) | 2020-03-28 | 2020-03-28 | Be used for hot continuous rolling apparatus for producing of stainless steel JM2 steel grade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020421678.8U CN211866176U (en) | 2020-03-28 | 2020-03-28 | Be used for hot continuous rolling apparatus for producing of stainless steel JM2 steel grade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211866176U true CN211866176U (en) | 2020-11-06 |
Family
ID=73257230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020421678.8U Active CN211866176U (en) | 2020-03-28 | 2020-03-28 | Be used for hot continuous rolling apparatus for producing of stainless steel JM2 steel grade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211866176U (en) |
-
2020
- 2020-03-28 CN CN202020421678.8U patent/CN211866176U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104826872A (en) | Rolling controlling method for eliminating surface chromatic aberration defect of hot-rolled strip steel | |
| CN102699028A (en) | Method for eliminating linear edge defects of hot-rolled low-carbon steel | |
| CN112570449B (en) | Efficient double-rack double-shear-line straight-through medium plate production line and production method | |
| CN110170528B (en) | Control method for white spot defect on surface of cold-rolled low-carbon steel | |
| WO2014117519A1 (en) | Compact universal vertical steel rail rolling method | |
| CN202174408U (en) | Assembly system of processing equipment for titanium and titanium alloy strip coils | |
| CN101618406B (en) | Method for controlling surface chromatic aberration of hot rolling acid-cleaning plate | |
| TW201811456A (en) | Composite cold rolling line to reduce the rolling thickness required by the second rolling, and produce massive amounts of cold rolled coil with a high yield rate | |
| CN109530436A (en) | A kind of cold rolling process and stainless steel band of stainless steel band | |
| CN102451844A (en) | Mechanical descaling method and device for cold-state band steel | |
| CN211866176U (en) | Be used for hot continuous rolling apparatus for producing of stainless steel JM2 steel grade | |
| JPS62240103A (en) | Method and apparatus for rolling high-temperature thin sheet material | |
| CN106513448A (en) | Finish rolling descaling method of strip steel | |
| CN217948225U (en) | Strip processing production line containing secondary rolling process | |
| CN114850233B (en) | Hot-rolled billet rough rolling descaling method | |
| CN103029010A (en) | Compact type production process arrangement for metal plate strips | |
| CN112474838B (en) | Wide and thick plate full-flow descaling device, descaling method and wide and thick plate | |
| CN112474801B (en) | Wide and thick plate with small trimming loss and production method thereof | |
| CN114054515B (en) | Method for controlling scale of cold rolling base stock after rolling | |
| CN111495992A (en) | High-pressure water descaling system and descaling method for hot-rolled bar | |
| CN113510153A (en) | Descaling machine applied to front end of roughing mill of continuous casting and rolling production line | |
| CN112337969A (en) | Short-process rolling method for cold-rolled 5052 alloy tank cover material | |
| CN103042055B (en) | Hot-rolled billet steel rough-rolling descaling method | |
| CN104475450A (en) | Method for rolling wide molybdenum strips for rotary extrusion crucibles | |
| JPH0763751B2 (en) | Hot rolling line |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |