CN105779693A - Covering and uncovering device of LF furnace - Google Patents
Covering and uncovering device of LF furnace Download PDFInfo
- Publication number
- CN105779693A CN105779693A CN201610249017.XA CN201610249017A CN105779693A CN 105779693 A CN105779693 A CN 105779693A CN 201610249017 A CN201610249017 A CN 201610249017A CN 105779693 A CN105779693 A CN 105779693A
- Authority
- CN
- China
- Prior art keywords
- prong
- ladle
- fork tooth
- convex
- chassis
- 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.)
- Pending
Links
Classifications
-
- 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
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/18—Door frames; Doors, lids, removable covers
- F27D1/1808—Removable covers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/18—Door frames; Doors, lids, removable covers
- F27D1/1808—Removable covers
- F27D2001/1825—Means for moving the cover
- F27D2001/1841—Means for moving the cover comprising means for rotating or moving the cover in a horizontal or quasi horizontal plane
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
The invention discloses a covering and uncovering device of an LF furnace. The covering and uncovering device of the LF furnace comprises an inverted-T-shaped fork tooth in the shape of an inverted T, a reversing device controlling the inverted-T-shaped fork tooth to swing, a fork tooth trolley installing the inverted-T-shaped fork tooth, a fixing frame and an electric-hydraulic pusher driving the fork tooth trolley to move along a running track, and the inverted-T-shaped fork tooth is formed by arranging a plurality of fork teeth forming a certain position front and back. The reversing device is arranged on the fixing frame through bolts. The inverted-T-shaped fork tooth is arranged under the reversing device, and the reversing device is parallel to the fork tooth trolley. The fork tooth trolley and the electric-hydraulic pusher are arranged on the fixing frame. The electric-hydraulic pusher is arranged over the fork tooth trolley. By means of stretching out or contracting back of the electric-hydraulic pusher, the fork tooth trolley is driven to move along the running track, the inverted-T-shaped fork tooth is driven to vertically swing along the angle of the reversing device, and the adjustment of the included angle between the fork tooth and the horizontal plane and covering/uncovering are achieved.
Description
Technical field
The present invention relates to smelting iron and steel technical field, particularly relate to a kind of LF stove covering/uncovering device.
Background technology
Energy-saving and emission-reduction work has become as the overall strategy target of country, iron and steel enterprise is big power consumer, some iron and steel enterprises have started ladle stamp operation already on conticaster, but, owing to the operation of existing ladle stamp must have been assisted by overhead traveling crane, this technology operability in actual applications is made to receive very big restriction, so that this technology is mostly limited to the continuous-casting steel pouring stage and uses, cannot accomplish that all make steel ladle cover cover in the whole recycling process of ladle is incubated on ladle, the temperature of ladle when molten iron and empty bag in ladle is caused to run off seriously in whole recycling process, cause energy loss；After filling with molten iron simultaneously or just having poured molten iron, sky wraps in whole recycling process does not have steel ladle cover to cover, high temperature in ladle produces convection current with the ambient temperature in iron and steel enterprise's Factory Building, cause the dust from flying in Factory Building and contaminated environment, online workman is caused damage；Therefore, the operation of more existing ladle stamp reaches far away that steelmaker author is desired energy-conservation and environment protecting, and the most of heat scattered and disappeared molten steel in ladle refractory lining and bag is effectively controlled not yet.
At present, ladle in use causes the approach of heat-energy losses to be generally made up of two parts, and one is the conduction heat between cylinder-packing and involucrum, and two is dissipate the radiant heat to air by ladle top open part.
Summary of the invention
The problem that present invention mainly solves " dissipating the radiant heat to air by ladle top open part ", by the present invention by steel ladle cover except coming out of the stove process at molten steel, all the other processes recycled online are covered all the time on ladle, makes ladle top open part substantially reduce to the heat loss through radiation amount in air；And, in the use of ladle circulates, it is no matter that the lid of adding a cover or take off of steel ladle cover is automatically performed each through Design of Mechanical Structure cleverly, has not both needed overhead traveling crane, it is not required that manpower intervention, brought huge energy-saving benefit to iron and steel enterprise.
In order to achieve the above object, the invention provides a kind of LF stove covering/uncovering device.Described LF stove covering/uncovering device includes: the prong of some front and back composition certain position is arranged in the convex prong of " convex " shape, controls the change course device of convex prong swing, installs the prong chassis of convex prong, fixed frame and drive prong chassis along the Electrohydraulic push rod running track travel.
Change course device is arranged on fixed frame by bolt, and convex prong is in the underface of change course device, and change course device is parallel with prong chassis.
Prong chassis and Electrohydraulic push rod are arranged on fixed frame, Electrohydraulic push rod is in the surface of prong chassis, stretch out by Electrohydraulic push rod/retract, prong chassis is driven to swing up and down along operation track travel, convex prong along the angle of change course device, it is achieved adjust the angle of prong and horizontal plane and add/take off lid.
Wherein, described prong is 4.
Beneficial effect: the present invention significantly reduces the thermal loss in ladle in iron and steel enterprise in whole recycling process, thus reducing the cooling degree that molten steel in ladle experiences, the reduction of this energy loss is converted into important production economy benefit, and topmost benefit shows that the cost reduction produced and operate, the Quality advance of product and the efficiency of production improve.
Using the present invention that steel ladle cover can be made to use at intimate whole ladle and cover on ladle all the time in cycle period, the direct benefit thus brought includes: reduce the cooling of molten steel in bag；Once ladle enters online recycling, the ladle preheating between heat can be exempted；Ladle turnover is accelerated；Reduce the usage quantity of online ladle；Reduce molten steel temperature fluctuation in ladle, tundish and crystallizer；Exempt in casting process and the auxiliary of tundish is preheated；Yield of alloy is more stable；Reduce the steel scrap in ladle to produce；That saves heat preserving agent makes consumption；Reduce the cleaning demand to ladle edge and slag line, thus reducing the mechanical damage that cylinder-packing is fire-resistant；Improve the free casting rate of steel ladle sliding water gap；Reduce operating delay；Reduce energy resource consumption；Improve the safeguard protection of plant personnel；Whole plant environment temperature and improving, pollutes and reduces.
When using the present invention, realized more being benefited by technological operation optimization, and these are benefited and are summarized by the following: molten steel tapping temperature can be lowered 20-30 degree.Have only to a ladle preheater to support production operation.This preheater newly builds the heating of cylinder-packing before being only put into production for ladle；In bag, the molten steel degree of superheat on conticaster can be reduced and more stable；Owing to molten steel tapping temperature reduces, deoxidizer consumption is lowered；Fire-resistant erosion on converter and ladle is reduced, therefore furnace life/bag is extended age；The molten steel operation of the different phases such as smelting, Ladle Treatment and continuous casting is processed time shortening；Potential Workshop Production rate obtains and improves；Process yield is improved；Production schedule arrangement can obtain the more effective utilization to the equipment of production；Workshop labour demand reduces；The working place of ladle service area can reduce；The generation of waste material, is reduced such as reactant side-product and fire-resistant waste product etc.；Product quality is improved.
Accompanying drawing explanation
The LF stove covering/uncovering device front view that Fig. 1 provides for the embodiment of the present invention.
The LF stove covering/uncovering device side view that Fig. 2 provides for the embodiment of the present invention.
Fig. 3 is Fig. 1 I place enlarged drawing.
The starting of the LF stove covering/uncovering device that Fig. 4 provides for the embodiment of the present invention takes off lid state diagram.
Fig. 5 has uncovered state diagram for the steel ladle cover of the LF stove covering/uncovering device that the embodiment of the present invention provides.
The LF stove covering/uncovering device that Fig. 6 provides for the embodiment of the present invention take off lid action completion status figure.
The LF stove covering/uncovering device that Fig. 7 provides for the embodiment of the present invention without carrying out taking off lid state diagram.
The starting of the LF stove covering/uncovering device that Fig. 8 provides for the embodiment of the present invention adds a cover state diagram.
Fig. 9 has added state diagram for the steel ladle cover of the LF stove covering/uncovering device that the embodiment of the present invention provides.
The LF stove covering/uncovering device that Figure 10 provides for the embodiment of the present invention add a cover action completion status figure.
The LF stove covering/uncovering device that Figure 11 provides for the embodiment of the present invention without carrying out adding a cover state diagram.
Wherein, 1. convex prong；2. change course device；3. Electrohydraulic push rod；4. prong chassis；5. fixed frame；6. steel ladle cover rotating shaft；7. steel ladle cover；8. ladle；9. buggy ladle；10. ladle free bearing rotating shaft；11.Ladle free bearing.
Detailed description of the invention
For the technical scheme making to present invention solves the technical problem that, adopting and the technique effect reached clearly, below in conjunction with drawings and Examples, the present invention is described in further detail.It is understood that specific embodiment described herein is used only for explaining the present invention, but not limitation of the invention.It also should be noted that, for the ease of describing, accompanying drawing illustrate only part related to the present invention but not full content.
No matter the present invention, in the recycling process of ladle, is that the lid action of adding a cover or take off of steel ladle cover is automatically performed each through the present invention, has not both needed overhead traveling crane, it is not required that manpower intervention, and it fundamentally achieves ladle and automatically adds/take off the effect of lid.
The structure (as shown in Figure 1 to Figure 3) of the present invention: the prong being formed certain position by 4 front and back is arranged in the critical pieces such as the Electrohydraulic push rod of the convex prong, the change course device of control convex prong swing, the installation prong chassis of convex prong, fixed frame and the swing of control convex prong that are similar to " convex " shape and forms.
Convex prong, change course device, prong chassis and Electrohydraulic push rod are all arranged on fixed frame, stretch out by Electrohydraulic push rod/retract, prong chassis is driven to swing up and down along operation track travel, convex prong along the angle of change course device, it is achieved adjust the angle of prong and horizontal plane and add/take off lid.
The work process of the present invention:
nullWhen the ladle 8 with steel ladle cover 7 runs on buggy ladle 9 and needs to take off lid to bottom of the present invention，Now Electrohydraulic push rod 3 work is stretched out drive prong chassis 4 direction as indicated in the figures by an arrow and is run，After the minimum point B point of convex prong bumps against with the rotating shaft 6 of steel ladle cover 7，Convex prong is under Electrohydraulic push rod work is stretched out，Steel ladle cover is climbed toward the peak of prong along with the slope of convex prong，When position as shown in the figure is climbed in rotating shaft in the middle of steel ladle cover，Steel ladle cover is reliably hung on convex prong，Automatically will not come off along slope because of deadweight，The now A point of steel ladle cover hook and the rotating shaft 10 of ladle free bearing 11 produces difference in height automatically disengage because of the drop between slope，Because the rotating shaft of buggy ladle free bearing disengages with the A point of steel ladle cover hook，When buggy ladle is toward when shown in arrow, direction continues to run with，Just the present invention can be passed through，Complete to take off lid action；
When do not run on buggy ladle 9 with the ladle 8 of steel ladle cover 7 need to add a cover to bottom of the present invention time, now Electrohydraulic push rod 3 work is retracted and is driven prong chassis 4 direction as indicated in the figures by an arrow to run, after the hook A point of steel ladle cover bumps against with the rotating shaft 10 of buggy ladle free bearing 11, steel ladle cover is under Electrohydraulic push rod work is retracted, along with the past minimum point sliding to prong in the slope of convex prong, now steel ladle cover automatic cover is on ladle, when buggy ladle is toward when shown in arrow, direction continues to run with, just can pass through the present invention, complete to take off lid action；
When the ladle with steel ladle cover runs on buggy ladle and is made without taking off lid action to bottom of the present invention, now only by Electrohydraulic push rod, convex prong need to be lifted to peak (such as Fig. 7, without carrying out taking off shown in lid state), just can pass through the present invention with the ladle of steel ladle cover, complete not take off lid action；
When do not run on buggy ladle with the ladle of steel ladle cover be made without adding a cover action to bottom of the present invention time, now only need to keep taking off lid action completion status (such as Figure 11, without carrying out adding a cover shown in state), just can not pass through the present invention with the ladle of steel ladle cover, complete not add a cover action；
The present invention carries out uncovery motion flow:
Adding a cover flow process such as Fig. 8 to as indicated by 10, the non-ladle with steel ladle cover moves under the present invention by traffic direction: ladle is in and starts to add a cover state ladle and adding a cover state ladle stamp action completion status.
Take off lid flow process as shown in Figures 4 to 6, move under the present invention with the ladle of steel ladle cover by traffic direction: take off lid beginning state steel ladle cover and uncovered state and take off lid action completion status.
Without carrying out taking off lid operating state as it is shown in fig. 7, convex prong is lifted to peak by Electrohydraulic push rod.
Without carrying out adding a cover operating state as shown in figure 11, keep taking off lid action completion status.
Present invention improvement structurally: the present invention does not need external Hydraulic Station, directly adopts Electrohydraulic push rod to complete ladle and adds/take off lid action, easy for installation, simple to operate, compact conformation, investment reduction.
Difference according to the appointed condition of steel mill, operating environment and management level, use steel ladle full stroke covering energy conserving system, attainable ton steel cost savings is typically between 20 to 25 yuan, also imply that the steel mill of year output of steel 9,000,000 tons, because of the use of steel ladle full stroke covering energy conserving system, the energy saving profit brought for a year just reaches 1.8～2.25 hundred million yuan.
Last it is noted that various embodiments above is only in order to illustrate technical scheme, it is not intended to limit；Although the present invention being described in detail with reference to foregoing embodiments, it will be understood by those within the art that: the technical scheme described in foregoing embodiments is modified by it, or wherein some or all of technical characteristic is carried out equivalent replacement, does not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (2)
1. a LF stove covering/uncovering device, it is characterized in that, described LF stove covering/uncovering device includes: the prong of some front and back composition certain position is arranged in the convex prong (1) of " convex " shape, controls the change course device (2) of convex prong swing, installs the prong chassis (4) of convex prong (1), fixed frame (5) and drive prong chassis (4) along the Electrohydraulic push rod (3) running track travel；
Change course device (2) is arranged on fixed frame (5) by bolt, and convex prong (1) is in the underface of change course device (2), and change course device (2) is parallel with prong chassis (4)；
Prong chassis (4) and Electrohydraulic push rod (3) are arranged on fixed frame (5), Electrohydraulic push rod (3) is in the surface of prong chassis (4), stretch out by Electrohydraulic push rod (3)/retract, drive prong chassis (4) to swing up and down along the angle of change course device (2) along operation track travel, convex prong (1), adjust the angle of prong and horizontal plane and add/take off lid.
2. according to claim 1 melt down converter cover-taking off device, it is characterised in that described prong is 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610249017.XA CN105779693A (en) | 2016-04-20 | 2016-04-20 | Covering and uncovering device of LF furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610249017.XA CN105779693A (en) | 2016-04-20 | 2016-04-20 | Covering and uncovering device of LF furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105779693A true CN105779693A (en) | 2016-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610249017.XA Pending CN105779693A (en) | 2016-04-20 | 2016-04-20 | Covering and uncovering device of LF furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105779693A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107164604A (en) * | 2017-04-26 | 2017-09-15 | 河钢股份有限公司承德分公司 | A kind of method that molten iron is incubated in ladle refining furnace |
| CN110819764A (en) * | 2019-11-13 | 2020-02-21 | 鞍钢重型机械有限责任公司 | Swing tooth supporting mechanism of ladle covering and uncovering device of LF (ladle furnace) |
| CN113451182A (en) * | 2021-08-30 | 2021-09-28 | 江苏晟驰微电子有限公司 | Diffusion furnace temperature control constant temperature system for chip production |
| CN114147208A (en) * | 2021-10-25 | 2022-03-08 | 江苏迪萨机械有限公司 | Fixed point translation gear-inserting type capping and uncapping machine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101885054A (en) * | 2010-06-28 | 2010-11-17 | 马鞍山市双益机械制造有限公司 | Automatic ladle covering and uncovering system for metal smelting |
| CN201832987U (en) * | 2010-06-28 | 2011-05-18 | 马鞍山市双益机械制造有限公司 | Automatic steel ladle covering/uncovering system for metal smelting |
| CN103464731A (en) * | 2012-06-06 | 2013-12-25 | 江苏迪萨机械有限公司 | Electro-hydraulic drive M-shaped steel ladle capping and decapping device |
| CN205635682U (en) * | 2016-04-20 | 2016-10-12 | 江苏迪萨机械有限公司 | LF stove covers device with taking off |
-
2016
- 2016-04-20 CN CN201610249017.XA patent/CN105779693A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101885054A (en) * | 2010-06-28 | 2010-11-17 | 马鞍山市双益机械制造有限公司 | Automatic ladle covering and uncovering system for metal smelting |
| CN201832987U (en) * | 2010-06-28 | 2011-05-18 | 马鞍山市双益机械制造有限公司 | Automatic steel ladle covering/uncovering system for metal smelting |
| CN103464731A (en) * | 2012-06-06 | 2013-12-25 | 江苏迪萨机械有限公司 | Electro-hydraulic drive M-shaped steel ladle capping and decapping device |
| CN205635682U (en) * | 2016-04-20 | 2016-10-12 | 江苏迪萨机械有限公司 | LF stove covers device with taking off |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107164604A (en) * | 2017-04-26 | 2017-09-15 | 河钢股份有限公司承德分公司 | A kind of method that molten iron is incubated in ladle refining furnace |
| CN107164604B (en) * | 2017-04-26 | 2018-10-16 | 河钢股份有限公司承德分公司 | A kind of method that molten iron is kept the temperature in ladle refining furnace |
| CN110819764A (en) * | 2019-11-13 | 2020-02-21 | 鞍钢重型机械有限责任公司 | Swing tooth supporting mechanism of ladle covering and uncovering device of LF (ladle furnace) |
| CN113451182A (en) * | 2021-08-30 | 2021-09-28 | 江苏晟驰微电子有限公司 | Diffusion furnace temperature control constant temperature system for chip production |
| CN113451182B (en) * | 2021-08-30 | 2021-11-12 | 江苏晟驰微电子有限公司 | Diffusion furnace temperature control constant temperature system for chip production |
| CN114147208A (en) * | 2021-10-25 | 2022-03-08 | 江苏迪萨机械有限公司 | Fixed point translation gear-inserting type capping and uncapping machine |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160720 |
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| RJ01 | Rejection of invention patent application after publication |