CN105618725A

CN105618725A - Compositely-bricked small-medium-sized steel ladle work lining

Info

Publication number: CN105618725A
Application number: CN201610094843.1A
Authority: CN
Inventors: 黄麒; 高进喜; 贾斌斌; 党武通; 谢宏伟
Original assignee: Ningxia Langsheng Precision Manufacturing Technology Co Ltd
Current assignee: Ningxia Langsheng Precision Manufacturing Technology Co Ltd
Priority date: 2016-02-22
Filing date: 2016-02-22
Publication date: 2016-06-01

Abstract

The invention relates to a compositely-bricked small-medium-sized steel ladle work lining. The compositely-bricked small-medium-sized steel ladle work lining comprises a slag line layer and a molten steel layer. A ladle bottom prefabricated unit is used at the bottom of a steel ladle, the prefabricated unit is designed to be of a U-shaped structure, embedded strengthening ribs and lifting lugs are adopted, the situation that cracks are generated at the ladle bottom is avoided and reduced, and meanwhile the ladle bottom is convenient to dismount. The molten steel layer is bricked through refractory bricks, and gaps are filled with refractory mortar. The slag line layer is formed through integral pouring of castable, the degree of corrosion of slag to a slag line is reduced, and repairing is convenient. The compositely-bricked small-medium-sized steel ladle work lining overcomes the defects of bricked steel ladles and integral pouring steel ladles on some structures, the service life of the steel ladles is prolonged, the steel ladle bricking cost is reduced, and the labor intensity of workers is relieved.

Description

The middle-size and small-size ladle working lining that compound is built by laying bricks or stones

Technical field

The present invention relates to the middle-size and small-size ladle working lining that a kind of compound is built by laying bricks or stones.

Background technology

At present, existing ladle working lining building method, topmost one is steel ladle and ladle bottom use laying fireproof bricks, uses fire clay joint filling between brickwork joint. In use, owing to the slag lining of steel ladle is subject to the erosion of slag, rate of decay is faster than all the other positions of steel ladle for the ladle built by laying bricks or stones according to this kind of technique. For ladle bottom, owing to the static pressure of molten steel is relatively big, bag bottom brick seam, the bag end and containment wall seam crossing very easily drill steel, reduce the service life of ladle. Use laying fireproof bricks simultaneously for damaging ladle bottom faster, be unfavorable for repairing.

Additionally, existing ladle working lining building method also has one to be use the integrated poured molding of castable, owing to castable ladle lining sinter layer in the process used is relatively thin, and uneven it is easily generated crackle owing to moulding by casting ladle lining is heated in the process of baking, cylinder-packing drill steel very easily occurs. The dismounting of integrated poured ladle is relatively difficult simultaneously, length consuming time, and the labor intensity of workman is big.

Summary of the invention

The technical problem to be solved in the present invention is: in order to overcome the deficiency of existing middle-size and small-size ladle working lining, the present invention provides the middle-size and small-size ladle working lining that a kind of compound is built by laying bricks or stones, both can guarantee that ladle met instructions for use, and can guarantee that again ladle has higher service life, and remove conveniently.

The technical solution adopted for the present invention to solve the technical problems is: the middle-size and small-size ladle working lining that a kind of compound is built by laying bricks or stones, including prefabricated component at the bottom of molten steel layer, slag line layer and bag, prefabricated component at the bottom of described bag is " recessed " the shape structure with bottom and convex edge, described convex edge is around periphery, described bottom and is raised in bottom, the pouring layer that described slag line layer is slag line and slag line is formed with upper bit, the convex edge of prefabricated component at the bottom of described bag is built by laying bricks or stones refractory brick and forms molten steel layer to slag line layer. Bag end prefabricated component is designed to " spill " structure, refractory brick is directly built by laying bricks or stones on the convex edge of bag end prefabricated component, be conducive to stablizing of ladle internal diameter size, the seam of ladle brick (refractory brick) and bag end prefabricated component is higher than the bag end simultaneously, avoid containment wall and wrap end seam and bag bottom in approximately the same plane, it is prevented that drill steel. Slag line and slag line use castable moulding by casting with upper bit, reduce the slag erosion to slag lining, and are conducive to the repairing after being damaged by slag action of this position.

At the bottom of described bag, the lateral surface of prefabricated component slopes inwardly from top to bottom, and ladle bottom prefabricated component is designed to bag outer, the end and has certain gradient to pocket block direction, it is simple to the flowing of molten steel, it is prevented that bag prodelta clay steel is also conducive to slag to flow out.

The inner surface of prefabricated component at the bottom of described bag, at convex edge and bottom connection place round-corner transition, effectively prevents the bag end and containment wall seam crossing drill steel.

Described slag line layer is by corundum pouring material moulding by casting.

In the refractory brick brickwork joint of described molten steel layer, there is fire clay and smear seam.

It is embedded with interlaced reinforcement in prefabricated component at the bottom of described bag, decreases bag crack, the end.

Being embedded with hanger in prefabricated component at the bottom of described bag, the convenient bag end, removes.

The invention has the beneficial effects as follows, the middle-size and small-size ladle working lining that the compound of the present invention is built by laying bricks or stones, cast, compound prefabricated, brick is adopted to build by laying bricks or stones, bag end prefabricated component is used at ladle bottom, prefabricated component is designed to " spill " structure, and adopt pre-buried " # shape " reinforcement and play hanger, the minimizing bag end, cracks, and the convenient bag end removes simultaneously. Slag line layer uses the integrated poured molding of castable, decreases slag to the erosion degree of slag line convenient repairing; The invention solves the shortcoming in some structures of brick ladle and integrated poured ladle, improve the service life of ladle, reduce ladle and build cost and labor strength by laying bricks or stones.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the present invention is further described.

Fig. 1 is the structural representation of the middle-size and small-size ladle working lining optimum embodiment that the compound of the present invention is built by laying bricks or stones.

The reinforcement that Fig. 2 is the bag end prefabricated component in the middle-size and small-size ladle working lining that the compound of the present invention is built by laying bricks or stones arranges schematic diagram.

In figure 1, slag line layer, 2, molten steel layer, 3, ladle permanent lining, 4, ladle involucrum, 5, bag end prefabricated component, 51, convex edge, 52, bottom, 6, play hanger, 7, reinforcement.

Detailed description of the invention

In conjunction with the accompanying drawings, the present invention is further detailed explanation. These accompanying drawings are the schematic diagram of simplification, and the basic structure of the present invention is only described in a schematic way, and therefore it only shows the composition relevant with the present invention.

As shown in Figure 1, the middle-size and small-size ladle working lining that a kind of compound of the present invention is built by laying bricks or stones, including molten steel layer 2, slag line layer 1 and bag end prefabricated component 5, prefabricated component 5 at the bottom of described bag is " recessed " the shape structure with bottom 52 and convex edge 51, and described convex edge 51 is around described periphery, bottom 52 and is raised in bottom 52. At the bottom of described bag, the lateral surface of prefabricated component 5 slopes inwardly from top to bottom. The inner surface of bag end prefabricated component 5 is at convex edge 51 and joint, bottom 52 round-corner transition. Hanger 6 and interlaced reinforcement 7 have been embedded with it in bag end prefabricated component 5.

The pouring layer that described slag line layer 1 is slag line and slag line is formed with upper bit, described slag line layer 1 is by corundum pouring material moulding by casting.

The convex edge 51 of prefabricated component 5 at the bottom of described bag builds refractory brick by laying bricks or stones and forms molten steel layer 2 to slag line layer 1. Fire clay is used to smear seam in the refractory brick brickwork joint of molten steel layer 2.

When building ladle by laying bricks or stones, first according to the position in brick cup hole, prefabricated component at the bottom of bag 5 is placed on bottom bag, then builds containment wall refractory brick by laying bricks or stones on the convex edge 51 of bag end prefabricated component 5, build by laying bricks or stones to slag line position, use castable material cast containment wall to form slag line layer 1.

During dismounting ladle, remove successively from top to bottom, during dismounting bag end prefabricated component 5, directly use overhead traveling crane to sling and wrap a hanger of end prefabricated component 5, thus hanging out bag end prefabricated component 5.

With the above-mentioned desirable embodiment according to the present invention for enlightenment, by above-mentioned description, relevant staff in the scope not necessarily departing from this invention technological thought, can carry out various change and amendment completely. The technical scope of this invention is not limited to the content in description, it is necessary to determine its technical scope according to right.

Claims

1. the middle-size and small-size ladle working lining that a compound is built by laying bricks or stones, it is characterized in that: include molten steel layer (2), slag line layer (1) and bag end prefabricated component (5), prefabricated component (5) at the bottom of described bag is " recessed " the shape structure with bottom (52) and convex edge (51), described convex edge (51) is around (52) periphery, described bottom and is raised in bottom (52), the pouring layer that described slag line layer (1) is formed with upper bit for slag line and slag line, the convex edge (51) of prefabricated component (5) at the bottom of described bag is built by laying bricks or stones refractory brick and forms molten steel layer (2) to slag line layer (1).

2. middle-size and small-size ladle working lining as claimed in claim 1, it is characterised in that: at the bottom of described bag, the lateral surface of prefabricated component (5) slopes inwardly from top to bottom.

3. middle-size and small-size ladle working lining as claimed in claim 1 or 2, it is characterised in that: the inner surface of prefabricated component (5) at the bottom of described bag is at convex edge (51) and bottom (52) joint round-corner transition.

4. middle-size and small-size ladle working lining as claimed in claim 1, it is characterised in that: described slag line layer (1) is by corundum pouring material moulding by casting.

5. middle-size and small-size ladle working lining as claimed in claim 1, it is characterised in that: in the refractory brick brickwork joint of described molten steel layer (2), there is fire clay and smear seam.

6. middle-size and small-size ladle working lining as claimed in claim 1, it is characterised in that: it is embedded with interlaced reinforcement (7) in prefabricated component (5) at the bottom of described bag.

7. the middle-size and small-size ladle working lining as described in claim 1 or 6, it is characterised in that: it is embedded with hanger (6) in prefabricated component (5) at the bottom of described bag.