CN103433472A

CN103433472A - Expansion ladle

Info

Publication number: CN103433472A
Application number: CN2013103454158A
Authority: CN
Inventors: 沈功煌; 郭殿锋
Original assignee: Heilongjiang Jianlong Iron and Steel Co Ltd
Current assignee: Heilongjiang Jianlong Iron and Steel Co Ltd
Priority date: 2013-08-09
Filing date: 2013-08-09
Publication date: 2013-12-11

Abstract

The invention discloses an expansion ladle. The expansion ladle is characterized in that the ladle capacity is expanded in a building mode of thinning the ladle bottom and the ladle wall without changing the ladle shell size or the ladle clearance, i.e., the building mode of thinning the original ladle bottom for 100 mm, the ladle wall for 20 mm and a slag line for 20 mm is adopted, but the ladle shell size is not changed, wherein the formed expansion ladle has the size that a ladle wall permanent layer is 100 mm of ramming material, a ladle bottom permanent layer is 150 mm of ramming material, the thickness of the slag line brick is 200 mm, the thickness of the working layer brick is 180 mm, the thickness of an impact region is 350 mm and the thickness of a non-impact region is 300 mm. The expansion ladle has the beneficial effects of simple structure, rational design and capability of expanding the ladle capacity in the building mode of thinning the ladle bottom and the ladle wall without changing the ladle shell size or the ladle clearance, namely achieving the purpose in the building mode of thinning the original ladle bottom for 100, the ladle wall for 20 and the slag line for 20; experiments prove that the service life of the ladle is not reduced and the total weight is still within 140 T of crown block dispatching capacity.

Description

The dilatation ladle

technical field:

The present invention relates to the smelting equipment technical field, refer in particular to a kind of dilatation ladle.

background technology:

At present, the basic brick-building art of refining ladle is:

One, new ladle needs ready material before building by laying bricks or stones: at the bottom of joint filler, stamp mass, asbestos board, T-3 brick, pocket block, ventilating seat brick, bag and the magnalium corundum brick of bag wall, slag line magnesia carbon brick etc.

Two, paste one deck asbestos board in bag end bottom before building by laying bricks or stones, temporarily nozzle brick is placed on to Kong position, the mouth of a river.Ventilating seat brick is placed on the position of air-vent.

Three, use stamp mass tie a knot on asbestos board permanent layer that thickness is 65mm, the wait permanent layer is dried or little fire drying naturally.

Four, take away nozzle brick, pocket block is fixed, on permanent layer, along pocket block and ventilating seat brick herringbone, build the T-3 brick by laying bricks or stones, require mud full, brickwork joint is no more than 2mm.

Five, the bag end and Bao Bi joint portion fill with stamp mass, and the bag end requires smooth.

Six, after smearing evenly with mud, stick asbestos board on the bag wall.Then annular is built T-3 brick (permanent layer) by laying bricks or stones, requires perpendicular the block.

Seven, evenly floating with mud on the bag wall permanent layer, then annular is built the magnalium corundum brick by laying bricks or stones, and 4 to 5 add 1 adjustment brick, approximately build 7-8 layers.Slag lining is built magnesia carbon brick by laying bricks or stones, approximately builds 3-4 layers.Require the whole radian of working lining to be close to permanent layer.The brick face is smooth, and mud is full, and brickwork joint is no more than 2mm.

Eight, the bag end, adopt herringbone to build method along ventilating seat brick and pocket block position.Space between the bag end and bag wall is filled up with stamp mass, and compacting, form slope, can not form right angle.

Nine, the ladle baking time: newly build ladle 24h.Overhaul ladle (working lining is built entirely) 12h, light maintenance ladle (changing slag line) 4h.

Ten, nozzle brick and porous core brick are installed after the complete naturally cooling 8h of ladle baking.Toast 2h before connecing molten steel.

In the situation that ladle shell size and ladle headroom are constant, the ladle of building by laying bricks or stones by above technique, the 78 tons of molten steel of can only packing into, and the converter current tap can reach 80-85 tons, in order to meet the converter Production requirement, in the situation that do not change ladle shell size and ladle headroom, adopt the masonry way of bag end bag wall attenuate to enlarge ladleful.

summary of the invention:

The purpose of this invention is to provide a kind of dilatation ladle, solve the problem that existing ladleful is little, can not meet converter tapping quantity.

The objective of the invention is to realize as follows: a kind of dilatation ladle, comprise: the bag wall, the bag end, slag line, working lining, impact zone, non-impact zone, it is characterized in that: this dilatation ladle is not in the situation that change ladle shell size and the ladle headroom, adopt the bag end, the masonry way of bag wall attenuate enlarges ladleful, be about to original bag base thickness degree attenuate 100mm, bag wall attenuate 20 mm, the masonry way of slag line attenuate 20 mm, and ladle shell size does not change, the dilatation ladle be shaped is of a size of bag wall permanent layer 100 mm stamp masses, bag end permanent layer 150 mm stamp masses, slag line brick thickness 200 mm, operational layer brick thickness 180 mm, impact zone thickness 350 mm, non-impact zone thickness 300 mm.

The invention has the beneficial effects as follows: simple in structure, reasonable in design, in the situation that do not change ladle shell size and ladle headroom, adopt the masonry way of bag end bag wall attenuate to enlarge ladleful, be about to original bag base thickness degree attenuate 100, bag wall attenuate 20, the masonry way of slag line attenuate 20 has just reached purpose; Through experimental verification, do not reduce the service life of ladle, and gross weight still within overhead traveling crane allocation and transportation ability 140T, and has improved the ability of packing into day of 560 tons, and because ladle shell size does not change, the ladle center of gravity is still constant, meets safety requirements.

the accompanying drawing explanation:

Fig. 1 is structural representation of the present invention;

In figure, bag wall 1, the bag end 2, slag line 3, working lining 4, impact zone 5, non-impact zone 6.

[0017] the specific embodiment:

With reference to Fig. 1, a kind of dilatation ladle, comprise: bag wall 1, the bag end 2, slag line 3, working lining 4, impact zone 5, non-impact zone 6, this dilatation ladle is not in the situation that change ladle shell size and the ladle headroom, adopt the bag end 2, the masonry way of bag wall 1 attenuate enlarges ladleful, be about to 2 reduced thickness 100mm at the bottom of original bag, bag wall 1 attenuate 20 mm, the masonry way of slag line 3 attenuate 20 mm, and ladle shell size does not change, the dilatation ladle be shaped is of a size of bag wall 1 permanent layer 100 mm stamp masses, the bag ends 2 permanent layer 150 mm stamp masses, slag line 3 brick thickness 200 mm, working lining 4 brick thickness 180 mm, impact zone 5 thickness 350 mm, non-impact zone 6 thickness 300 mm.

Claims

1. a dilatation ladle, comprise: bag wall (1), the bag end (2), slag line (3), working lining (4), impact zone (5), non-impact zone (6), it is characterized in that: this dilatation ladle is not in the situation that change ladle shell size and the ladle headroom, adopt the bag end (2), the masonry way of bag wall (1) attenuate enlarges ladleful, (2) reduced thickness 100mm at the bottom of being about to original bag, bag wall (1) attenuate 20 mm, the masonry way of slag line (3) attenuate 20 mm, and ladle shell size does not change, the dilatation ladle be shaped is of a size of bag wall (1) permanent layer 100 mm stamp masses, the bag end (2) permanent layer 150 mm stamp masses, slag line (3) brick thickness 200 mm, working lining (4) brick thickness 180 mm, impact zone (5) thickness 350 mm, non-impact zone (6) thickness 300 mm.