CN102398023A - Method and equipment for clearing continuous casting tundish - Google Patents
Method and equipment for clearing continuous casting tundish Download PDFInfo
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- CN102398023A CN102398023A CN2010102764581A CN201010276458A CN102398023A CN 102398023 A CN102398023 A CN 102398023A CN 2010102764581 A CN2010102764581 A CN 2010102764581A CN 201010276458 A CN201010276458 A CN 201010276458A CN 102398023 A CN102398023 A CN 102398023A
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- tundish
- clearing
- tipper
- cleaning
- continuous casting
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Abstract
The invention discloses a method and equipment for clearing a continuous casting tundish. The equipment comprises a tundish overturning machine, a special tundish waste groove and a trolley, wherein a flame clearing machine is arranged below the tundish overturning machine; and cameras are arranged below both sides of the tundish overturning machine. The method comprises the following process steps of: continuously casting and pouring tundish molten steel and hanging a tundish onto the overturning machine at a clearing position; driving the trolley loaded with the special waste groove for clearing the tundish to the lower side of the clearing position; starting up the overturning machine for pouring steel and slag in the tundish into the special waste groove; and starting a high-temperature-resistant camera of the flame clearing machine, observing images shot by the camera in a control room, and remotely operating the flame clearing machine for clearing steel and slag left on a tundish lining. The invention has the advantages that: the tundish interval clearing period is short, the temperature loss of the tundish lining is small, the baking time is shortened greatly, a large amount of fuel gas can be saved, the service life of the tundish lining is prolonged, the equipment investment and maintenance costs are relatively low, and the structure is simple.
Description
Technical field
The invention belongs to the steel-making continuous casting technical field, relate to the residual steel of tundish behind the continuous casting, residue Removal Technology, specifically is a kind of possess energy-efficient continuous casting tundish method for cleaning and equipment.
Background technology
At present, during at home and abroad continuous casting was produced, during continuous casting was produced, the cleaning of tundish was one of key link, and the method for cleaning of wasting time and energy is generally adopted in the residual steel residue cleaning of the tundish after continuous casting finishes.Its capital equipment has: disintegrating machine (be to have reequiped excavator, assembled pneumatic pick at the working arm head), tundish tipper.Its method is, after cast finishes, tundish winched on the tipper of cleaning position, treats that residual steel solidifies, and uses disintegrating machine to beat and prizes residual steel, and the residual steel, the residue that solidify are separated with cylinder-packing.The chassis that is loaded with the special-purpose waste tank of cleaning tundish is opened to below, cleaning position, started tipper the steel in the tundish, slag are poured in the special-purpose waste tank.Level end to this, carry out the spray repair of tundish then.Cleaning cycle is about 70 minutes.
Think that the problem of existing method for cleaning is mainly that the tundish cleaning cycle is long, the temperature loss of tundish cylinder-packing is big, the tundish life-span is low, equipment investment and maintenance cost be high: 1. cleaning cycle is long: wait for that residual steel solidifies cooling and needs more than 25 minutes, the process need that uses disintegrating machine to beat to prize residual steel is more than 30 minutes; 2. tundish temperature loss is big: because cleaning cycle is long, the temperature loss of tundish cylinder-packing is big, and the cylinder-packing surface temperature is merely 200～250 ℃ to the spray repair, thereby the abundant residues thermal loss of tundish falls, and can not be utilized by coating spray repair and drying course; 3. the tundish life-span is low: because beaing of disintegrating machine prizes, refractory brick is damaged.In addition, the cylinder-packing temperature drop is big in the scale removal process, and it is big to cause whole work to level in the circular flow temperature fluctuation of cylinder-packing, and these all can reduce the service life of tundish permanent layer refractory brick, is about 30 at present the service life of tundish permanent layer and waters time; 4. equipment investment and maintenance cost are high: disintegrating machine is made an investment in more than 700,000 yuan, and the accessory loss is big.
CN200820218730.9 discloses a kind of name and has been called " insert of removing the residual steel of continuous casting tundish "; Be characterized in providing a kind of insert of removing the residual steel of continuous casting tundish; Water under the situation in that tundish is disconnected; Before molten steel solidifies in the bag several inserts are not vertically inserted in the tundish in the residual molten steel, thing such as residual steel is set in insert; After treating that residual steel solidifies fully, sling and extract.But its existence can not be removed the residue in the tundish fully; Need to wait for solidification of molten steel that cause the tundish temperature drop big, cleaning cycle is long; Problems such as it is big that molten steel and insert integral body are solidified the back volume, and the cutting workload of steel scrap recovery use is big.
Summary of the invention
The object of the invention is exactly through a kind of energy-efficient continuous casting tundish method for cleaning is provided; Reduce the tundish clearance time significantly; Reduce the equipment investment cost of tundish cleaning, reduce the cost of labor of operation, reduce the thermal losses in the tundish scale removal process; And prolong tundish service life, solved the problem that existing continuous casting tundish scale removal process exists.
The equipment that the present invention mainly adopts has: hot scarfing machine; The tundish tipper; High temperature resistant camera, the special-purpose waste tank of tundish and chassis etc. adopt existing tundish tipper, waste tank and chassis; Be characterized in below the tundish tipper, hot scarfing machine being installed, camera be installed in tundish tipper down either side.
The nozzle of hot scarfing machine is installed in the mechanical arm front end, and mechanical arm adopts three sections link rod structures, adopts hydraulic-driven; Can regulate the distance between mechanical arm and the tundish, mechanical arm is installed on the turntable, angle that so just can the flexible mechanical arm; Hot scarfing machine uses fuel gas such as acetylene, coal gas; The mechanical arm upper surface is coated with refractory materials such as refractory felt, makes mechanical arm do not destroyed by molten steel and the slag that tundish falls, and is easy to cleaning.
Camera is positioned at both sides, tipper below, apart from 3～3.5 meters of the vertical ranges on tipper summit, is 1.5 meters apart from the horizontal range of tundish length direction outer.
The distance of shaft centers of hot scarfing machine turntable is from 2～5 meters of tundish, and the radius of the overlay area of the mechanical arm of hot scarfing machine is 5～7 meters.
Its process is:
(1) after the cast of tundish continuous casting of molten steel finishes, tundish is winched on the tipper of cleaning position;
The chassis that (2) will be loaded with the special-purpose waste tank of cleaning tundish leaves to below, cleaning position;
(3) starting tipper pours into the steel in the tundish, slag in the special-purpose waste tank;
(4) the high temperature resistant camera of unlatching hot scarfing machine in the control room, is observed the image that camera is shot with video-corder, and the operated from a distance hot scarfing machine is removed and remained in steel, the slag on the cylinder-packing.
The present invention compared with prior art has following characteristics: 1. the tundish cleaning cycle is about 10 minutes, reduces 60 minutes than current methods; 2. the temperature loss of tundish cylinder-packing is little: the temperature on cylinder-packing surface, cleaning back is about 550 ℃, significantly reduces stoving time, and can save a large amount of combustion gas; 3. owing to needn't use disintegrating machine to beat to prize, and wholely level that the temperature fluctuation of cylinder-packing reduces 300 ℃ in the circular flow, these all can increase the service life of tundish cylinder-packing, estimate that ladle lining life can improve 20 and water time; 4. equipment investment and maintenance cost are lower, and be simple in structure.
Description of drawings
Accompanying drawing 1: structural representation front view of the present invention;
Accompanying drawing 2: be the vertical view of accompanying drawing 1;
Accompanying drawing 3: hot scarfing machine structure chart of the present invention;
Among the figure 1: tundish; 2: hot scarfing machine; 3: high temperature resistant camera; 4: tundish tipper, 21: pedestal; 22: turntable; 23: one section of mechanical arm; 24: two sections of mechanical arms; 25: three sections of mechanical arms; 26: nozzle.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is elaborated:
The present invention adopts existing tundish tipper, and waste tank and chassis are characterized in below the tundish tipper, hot scarfing machine being installed, and in tundish tipper down either side camera is installed.After the water cast of middle Baogang finishes; Tundish is winched on the tipper of cleaning position; To be loaded with the special-purpose waste tank of cleaning tundish and (be isolated into three to four less grooves in the special-purpose waste tank; So that the steel scrap size is less, can directly melt down without cutting) chassis open to cleaning position below, start tipper the steel in the tundish, slag poured in the special-purpose waste tank.Therefore slag is liquid state the time, so most steel, slag all are poured out.The operation tipper, the inversion state of maintenance tundish.Open the high temperature resistant camera of hot scarfing machine, camera is positioned at both sides, tipper below, apart from 3～3.5 meters of the vertical ranges on tipper summit; Horizontal range apart from tundish length direction outer is 1.5 meters, in the control room, just can clearly observe the distribution of the slag in the tundish, observes the image that camera is shot with video-corder; According to the position of the required cleaning of tundish, operated from a distance hot scarfing machine, the bending of HYDRAULIC CONTROL SYSTEM mechanical arm and stretching; The radius of gyration of the mechanical arm of rotary system control hot scarfing machine makes the nozzle ejaculation of flame can reach the cleaning position, removes residual steel, slag on cylinder-packing; Start tipper after the cleaning and make the tundish return, winch to the spray repair position and carry out spray repair, level end to this; Cleaning cycle is about 10 minutes, saves 60 minutes than prior art.
Claims (4)
1. the method for cleaning of a continuous casting tundish is characterized in that, process is:
(1) after the cast of tundish continuous casting of molten steel finishes, tundish is winched on the tipper of cleaning position;
The chassis that (2) will be loaded with the special-purpose waste tank of cleaning tundish leaves to below, cleaning position;
(3) starting tipper pours into the steel in the tundish, slag in the special-purpose waste tank;
(4) the high temperature resistant camera of unlatching hot scarfing machine in the control room, is observed the image that camera is shot with video-corder, and the operated from a distance hot scarfing machine is removed and remained in steel, the slag on the cylinder-packing.
2. equipment that is used for the method for cleaning of the described continuous casting tundish of claim 1; Adopt tundish tipper, the special-purpose waste tank of tundish and chassis; It is characterized in that, below the tundish tipper, hot scarfing machine is installed, camera is installed in tundish tipper down either side.
3. the equipment of the method for cleaning of a kind of continuous casting tundish according to claim 2 is characterized in that, the nozzle of hot scarfing machine is installed in the mechanical arm front end; Mechanical arm adopts three sections link rod structures; Adopt hydraulic-driven, mechanical arm is installed on the turntable, and turntable is fixed on the pedestal.
4. the equipment of the method for cleaning of a kind of continuous casting tundish according to claim 2 is characterized in that, camera is positioned at both sides, tipper below, apart from 3～3.5 meters of the vertical ranges on tipper summit, is 1.5 meters apart from the horizontal range of tundish length direction outer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102764581A CN102398023A (en) | 2010-09-07 | 2010-09-07 | Method and equipment for clearing continuous casting tundish |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102764581A CN102398023A (en) | 2010-09-07 | 2010-09-07 | Method and equipment for clearing continuous casting tundish |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102398023A true CN102398023A (en) | 2012-04-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102764581A Pending CN102398023A (en) | 2010-09-07 | 2010-09-07 | Method and equipment for clearing continuous casting tundish |
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| CN (1) | CN102398023A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102921904A (en) * | 2012-11-21 | 2013-02-13 | 宁夏共享集团有限责任公司 | Device for observing and cleaning interior of runner and loose sand in mold cavity in casting process |
| CN108145145A (en) * | 2018-03-08 | 2018-06-12 | 台安益兴科技有限公司 | Liquid metal turns over bag apparatus |
| CN111702154A (en) * | 2020-06-30 | 2020-09-25 | 上海电气上重铸锻有限公司 | Tundish inner wall cleaning method |
| CN113828891A (en) * | 2021-11-03 | 2021-12-24 | 上海东震冶金工程技术有限公司 | High-precision and high-reliability intelligent steel billet cleaning hydraulic robot device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61137656A (en) * | 1984-12-07 | 1986-06-25 | Nippon Steel Corp | Cleaning method of tundish lining |
| JPH01107948A (en) * | 1987-10-22 | 1989-04-25 | Kawasaki Steel Corp | Method and device for reusing tundish |
| WO2009069812A1 (en) * | 2007-11-28 | 2009-06-04 | Nippon Steel Corporation | Hot scarfer |
| CN201516509U (en) * | 2009-11-02 | 2010-06-30 | 一重集团大连设计研究院有限公司 | Device for removing residual steel shell in tundish |
-
2010
- 2010-09-07 CN CN2010102764581A patent/CN102398023A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61137656A (en) * | 1984-12-07 | 1986-06-25 | Nippon Steel Corp | Cleaning method of tundish lining |
| JPH01107948A (en) * | 1987-10-22 | 1989-04-25 | Kawasaki Steel Corp | Method and device for reusing tundish |
| WO2009069812A1 (en) * | 2007-11-28 | 2009-06-04 | Nippon Steel Corporation | Hot scarfer |
| CN201516509U (en) * | 2009-11-02 | 2010-06-30 | 一重集团大连设计研究院有限公司 | Device for removing residual steel shell in tundish |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102921904A (en) * | 2012-11-21 | 2013-02-13 | 宁夏共享集团有限责任公司 | Device for observing and cleaning interior of runner and loose sand in mold cavity in casting process |
| CN108145145A (en) * | 2018-03-08 | 2018-06-12 | 台安益兴科技有限公司 | Liquid metal turns over bag apparatus |
| CN111702154A (en) * | 2020-06-30 | 2020-09-25 | 上海电气上重铸锻有限公司 | Tundish inner wall cleaning method |
| CN111702154B (en) * | 2020-06-30 | 2022-03-25 | 上海电气上重铸锻有限公司 | Tundish inner wall cleaning method |
| CN113828891A (en) * | 2021-11-03 | 2021-12-24 | 上海东震冶金工程技术有限公司 | High-precision and high-reliability intelligent steel billet cleaning hydraulic robot device |
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Application publication date: 20120404 |