CN2717969Y - Pulling unit for tuyere refractory brick used for revolving furnace reblowing - Google Patents
Pulling unit for tuyere refractory brick used for revolving furnace reblowing Download PDFInfo
- Publication number
- CN2717969Y CN2717969Y CN 200420036868 CN200420036868U CN2717969Y CN 2717969 Y CN2717969 Y CN 2717969Y CN 200420036868 CN200420036868 CN 200420036868 CN 200420036868 U CN200420036868 U CN 200420036868U CN 2717969 Y CN2717969 Y CN 2717969Y
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- CN
- China
- Prior art keywords
- air port
- telescopic cylinder
- reblowing
- brick
- converter
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- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a pulling unit for tuyere refractory brick used for revolving furnace reblowing, comprising a travel trolley, a lifting cylinder, a right and left telescopic cylinder, and a disassembling and assembling top frame. The lifting cylinder is arranged on the travel trolley. The right and left telescopic cylinder is connected with the lifting cylinder, and the piston rod of the right and left telescopic cylinder is provided with a fixing component. The disassembling and assembling top frame is fixed to the right and left telescopic cylinder, and the disassembling and assembling top frame is provided with a top rod. The right and left telescopic cylinder is adjusted during the operation, and the flange of the piston rod of the telescopic cylinder is connected with the bolt hole of the flange at the bottom of the revolving furnace via a bolt. The top rod of the disassembling and assembling top frame is supported on the flange at the bottom of the furnace, and the trolley is relatively fixed to the bottom of the furnace. Then the right and left telescopic cylinder is started, the solid brick in a blind air outlet, and the pulling handle and the flange on the solid brick are pulled out all together, and the pulling operation is finished. The utility model can reduce the damage to the tuyere brick and the inside sleeve brick in the operation of changing the air outlet, the service life of the new air outlet of the revolving furnace is lengthened, and the reblowing life of the revolving furnace is improved. The reblowing effective life is increased above 6000 furnaces, and the condition is created for the total reblowing of the revolving furnace.
Description
Technical field
The utility model relates to smelter top and bottom combined blown converter air port replacing technology.
Background technology
Smelter is nearly all using converter to blow again at present, and its purpose is to strengthen molten steel stirring in the stove, makes chemical sufficient reacting in the stove, thereby shortens the heat, and improves steel quality.
The multiple blowing technology of present converter, it is generally shorter to blow the life-span again, generally has only about 2000 stoves, and the stove labour later stage does not have again substantially and blows.Also have producer to attempt by red-tape operati technology, mushroom residue is built at the place in the furnace bottom air port, and multiple blowing gas stream is wriggled to the converter air feed by zigzag path, improves again and blows the life-span.Facts have proved that this method is very little at stove labour later stage air port flow, almost can ignore, do not have the effect of auxiliary converter smelting at all.Employing " air port is replaceable " technology is also arranged, as shown in Figure 1, steelworks adopts answers the system of blowing and will blow the tuyere device that is sent to converter 30 bottoms with gas such as nitrogen, argon gas and oxygen etc. by the restrained line 20 of hyperchannel swivel joint 10 on converter body again by 5 road independent control circuits.The converter bottom is provided with two kinds of air ports: a kind of is normal work air port 31 of using; Another kind is to change standby blind air port 32 for the air port.A lot of fine steel tubes has been arranged in the refractory brick the inside in work air port 31, realizes the function of blowing again by the supply air line of outside.And the refractory brick of 32 the insides, blind air port is solid bricks, at ordinary times not to the converter bottom blowing.
Behind 2000～3000 stoves that blown non-stop run again, the situation that the air port flow descends, pressure increases generally all can appear.After certain operations means and measure,, will engender the air port phenomenon of blocking if can not reverse this phenomenon.For the effect that keeps blowing again, the flow that must assurance blows again.This considers gradually the air port to be changed with regard to needs.So-called air port is changed, and exactly the air feed circuit in original work air port 31 is closed, and gets through the air supply channel in blind air port 32, will transfer on the blind air port 32 from work air port 31 the air feed task of converter 30.Get through the air supply channel in blind air port 32, the solid brick of 32 the insides, blind air port will be extracted exactly, new the inside has been arranged that the refractory brick of a lot of fine steel tubes puts into 32 the insides, blind air port, realize changing blind air port into the work air port.Thus, blow the life-span again to be largely increased, risen to stove more than 6000 from 2000 stoves, substantially can be synchronous with converter lining life, guaranteed effective bottom blowing air quantity simultaneously, obtained bigger economic interests.
Originally owing to there be not special-purpose choosing and setting tool, can only adopt on the platform of steelworks stokehold equipment such as existing tap hole dismounting machine as power, on the flange of blind air port, realize choosing of blind air port with the wireline bolt.Equally, also be to adopt similar equipment during installation with in the fresh wind port jacking converter lining.
This to the choosing and installation exercise of the multiple blowing mouth of converter, although under extremely careful and complicated personnel cooperate, also can finish the task of changing the air port.But this method has fatal shortcoming: when choosing blind air port, because it is huge that tap hole is removed machine equipment, move heavy, add and adopt wireline to tie up blind air port, the realization action of choosing, be difficult to accomplish that force direction is consistent with the central axial direction in blind air port, will inevitably damage or destroy blind tuyere brick air port cover brick on every side like this, cause having the gap between the tuyere brick newly installed and tunica brick, thereby can cause blowing again the generation of leaking gas and oozing the steel phenomenon, bring hidden danger for the safety in production of converter; And, often cause the unusual damage of newly changing the air port, shortened the service life of fresh wind port, also influenced blowing effectively again of whole converter.Although this gap can adopt Gunning refractory to go to remedy in actually operating, its performance is nothing like original-pack tuyere brick and cover changes, and makes it that early stage phenomenon of damaging often take place, thereby has shortened the military service phase of newly changing the air port.
Summary of the invention
The purpose of this utility model is to design a kind of converter and blows the pulling attachment of using air port refractory brick again, can effectively reduce the gas leakage of furnace bottom fresh wind port and ooze the steel phenomenon, prolong the service life of fresh wind port, eliminate the substantial equipment hidden danger in the STEELMAKING PRODUCTION, prolong the life-span that converter is blown again, guarantee to blow again effect.
The technical solution of the utility model is:
The pulling attachment with air port refractory brick is blown in a kind of converter again, comprises walking dolly, hoist cylinder, left and right sides telescopic oil cylinder, dismounting upper frame; Wherein, hoist cylinder is arranged on the walking dolly; Left and right sides telescopic oil cylinder is connected with hoist cylinder, and its piston rod is provided with mounting block; The dismounting upper frame is fixed on the telescopic oil cylinder of the left and right sides, which is provided with push rod.
Further, pulling attachment of the present utility model is provided with linkage, makes movable turnover between left and right sides telescopic oil cylinder and the oscilaltion oil cylinder, so that need not preserve at ordinary times and when mobile, left and right sides telescopic oil cylinder is turned down, make equipment compact more and prevent unusual damage.
During work, adjust the upper-lower position of pulling attachment, so that the medullary ray of the axial line of left and right sides telescopic oil cylinder and filler for converter tuyere brick point-blank, regulate the working stroke of left and right sides telescopic oil cylinder then, the bolt hole that to make mounting block on the telescopic oil cylinder piston rod of the left and right sides be flange by bolt and converter furnace bottom flange couples together, the push rod of dismounting upper frame props up on the furnace bottom flange, makes dolly and furnace bottom relative fixed; Start the working stroke of left and right sides telescopic oil cylinder then, the solid brick in blind air port is extracted together with choose handle and flange on it, finish the operation of choosing.
Advantage of the present utility model is,
The utility model to the damage of tuyere brick and the inside cover brick, prolongs converter and newly changes the service life in air port in the time of can effectively reducing the operation of replacing air port after using in the converter, blows the life-span thereby can improve answering of whole converter, and bigger economic benefit is arranged; Steelwork converter blows system again after adopting the replaceable system in air port, blows the life-span again and improves greatly, original answering is blown about useful life 2000 stoves rise to more than 6000 stoves, for converter whole process is blown the condition created again.
Description of drawings
Fig. 1 is for having converter furnace bottom air port now at converter furnace bottom synoptic diagram.
Fig. 2 is a converter furnace bottom tuyere brick synoptic diagram.
Fig. 3 is a structural representation of the present utility model.
Embodiment
As shown in Figure 3, the pulling attachment with air port refractory brick is blown in converter of the present utility model again, comprises walking dolly 1, hoist cylinder 2, left and right sides telescopic oil cylinder 3, dismounting upper frame 4; Wherein, hoist cylinder 2 is arranged on walking dolly 1 topping base 8, is provided with hydraulic control system such as motor, trip switch and fuel tank etc. in the pedestal 8, with the action of operate lifting oil cylinder 2 and left and right sides telescopic oil cylinder 3; Left and right sides telescopic oil cylinder 3 is connected with hoist cylinder 2 by linkage 7, and it is flange 5 that its piston rod 6 is provided with mounting block; Dismounting upper frame 4 is fixed on the telescopic oil cylinder of the left and right sides, which is provided with push rod 41.
See also Fig. 2, Fig. 3 again, when implementing air port replacing operation, regulate oscilaltion oil cylinder 2, make the axial line of left and right sides telescopic oil cylinder 3 consistent with the medullary ray in the blind air port 32 of converter as far as possible, regulate the working stroke of left and right sides telescopic oil cylinder 3 then, the flange 5 that makes left and right sides telescopic oil cylinder 3 couples together by the bolt hole 401 of bolt 51 with the furnace bottom flange 35 in the blind air port 32 of converter, again with 41 of three push rods of dismounting upper frame 4 on furnace bottom flange 35, make dolly 1 and furnace bottom 30 relative fixed; Start the working stroke of left and right sides telescopic oil cylinder 3 then, extract, finish the operation of choosing with the solid brick 34 in blind air port 32 with together with choose handle 40 and flange 35 on it.
In like manner, the operation of fresh wind port refractory brick is installed again, the refractory brick that is about to arrange a lot of fine steel tubes in new the inside connects supply air line again by cover brick 33 the insides, the blind air port of left and right sides telescopic oil cylinder 3 jacking converters, has promptly finished whole air port and has changed operation.
The converter of at present domestic all size, multiple blowing technology tool has a broad prospect of the use, and it can effectively improve the steel grade quality and save cost.And the replaceable technology in air port is to blow longevity even the gordian technique synchronous with converter lining life again.The utility model has solved the technical barrier in the replacing of air port, can reduce when changing the air port operation damage effectively to tuyere brick and the inside cover brick, thereby prevented from effectively newly to change the gas leakage in air port and ooze the steel phenomenon, prolonged the service life that the air port is newly changed in converter, blow the life-span thereby can improve answering of whole converter, bigger economic benefit is arranged.
Claims (2)
1. the pulling attachment of using air port refractory brick is blown in a converter again, it is characterized in that, comprise, and walking dolly,
Hoist cylinder is arranged on the walking dolly;
Left and right sides telescopic oil cylinder is connected with hoist cylinder, and its piston rod is provided with mounting block;
The dismounting upper frame is fixed on the telescopic oil cylinder of the left and right sides, which is provided with push rod.
2. the pulling attachment with air port refractory brick is blown in converter as claimed in claim 1 again, it is characterized in that, is provided with linkage, connects left and right sides telescopic oil cylinder and oscilaltion oil cylinder, makes movable turnover between left and right sides telescopic oil cylinder and the oscilaltion oil cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420036868 CN2717969Y (en) | 2004-06-28 | 2004-06-28 | Pulling unit for tuyere refractory brick used for revolving furnace reblowing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420036868 CN2717969Y (en) | 2004-06-28 | 2004-06-28 | Pulling unit for tuyere refractory brick used for revolving furnace reblowing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2717969Y true CN2717969Y (en) | 2005-08-17 |
Family
ID=34893038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420036868 Expired - Fee Related CN2717969Y (en) | 2004-06-28 | 2004-06-28 | Pulling unit for tuyere refractory brick used for revolving furnace reblowing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2717969Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734270A (en) * | 2011-04-06 | 2012-10-17 | 太仓海嘉车辆配件有限公司 | Cooling equipment for air cylinder and oil cylinder |
| CN106565073A (en) * | 2016-10-31 | 2017-04-19 | 彩虹（合肥）液晶玻璃有限公司 | An electrode propelling and tank wall brick replacing device of a glass substrate tank furnace |
-
2004
- 2004-06-28 CN CN 200420036868 patent/CN2717969Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734270A (en) * | 2011-04-06 | 2012-10-17 | 太仓海嘉车辆配件有限公司 | Cooling equipment for air cylinder and oil cylinder |
| CN106565073A (en) * | 2016-10-31 | 2017-04-19 | 彩虹（合肥）液晶玻璃有限公司 | An electrode propelling and tank wall brick replacing device of a glass substrate tank furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050817 Termination date: 20130628 |