CN218517707U

CN218517707U - Ladle

Info

Publication number: CN218517707U
Application number: CN202222579428.9U
Authority: CN
Inventors: 宋子印; 郭江涛; 王延强; 周亮; 李旭海
Original assignee: Sinosteel Xingtai Machinery and Mill Roll Co Ltd
Current assignee: Sinosteel Xingtai Machinery and Mill Roll Co Ltd
Priority date: 2022-09-28
Filing date: 2022-09-28
Publication date: 2023-02-24
Anticipated expiration: 2032-09-28

Abstract

The utility model discloses a ladle, which comprises a ladle wall provided with a lining, a ladle bottom and a ladle nozzle, wherein the lining of the ladle bottom comprises a permanent layer arranged on the inner wall of the ladle bottom and a working layer arranged close to the permanent layer; the inner lining of the ladle wall comprises a heat insulation layer, a permanent layer and a working layer which are sequentially arranged from the inner wall to the center, and the heat insulation layer is fixed on the inner wall of the ladle wall through a reinforcing device; a plurality of fixing nails for fixing the heat insulating layer are uniformly distributed on the reinforcing device at intervals, the heat insulating effect of the utility model is better, so that the temperature drop of the furnace and the temperature drop speed in the ladle are smaller, and the furnace temperature can be effectively reduced; secondly, the temperature of molten steel in the ladle is more uniform, so that the corrosion thickness consistency of the product can be further improved; meanwhile, the yield of the nodulizer is further improved along with the reduction of the tapping temperature, and the adding proportion of the nodulizer can be properly reduced under the condition of ensuring that the residual magnesium content of the finished product is not changed.

Description

Ladle

Technical Field

The utility model relates to a ladle belongs to metallurgical equipment technical field.

Background

In the production process, whether the heat insulation effect of the ladle is good or not directly influences the temperature drop of molten iron in the ladle and indirectly influences the product quality.

The lining of the conventional ladle (comprising a ladle wall, a ladle bottom and a ladle nozzle) used at present is simple in masonry, and as shown in figure 2, the lining comprises a permanent layer and a working layer, and the permanent layer is tightly attached to the ladle wall and the ladle bottom. The main refractory material of the permanent layer is made of refractory cement and clinker grains, and the working layer is mainly made of refractory wall-covering bricks. The lining structure of conventional ladle is simple relatively, and thermal-insulated heat preservation effect is general, can influence the temperature drop of interior molten iron of ladle, produces the influence to product quality.

SUMMERY OF THE UTILITY MODEL

The utility model provides a ladle with better heat insulation effect, which can reduce the temperature drop of the tapping furnace and the temperature drop rate in the ladle, and can effectively reduce the tapping temperature; secondly, the temperature of the steel (iron) water in the ladle is more uniform, so that the consistency of the corrosion thickness of the product can be further improved; meanwhile, the yield of the nodulizer is further improved along with the reduction of the tapping temperature, and the adding proportion of the nodulizer can be properly reduced under the condition of ensuring that the residual magnesium content of the finished product is not changed.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:

a ladle comprises a ladle wall provided with a lining, a ladle bottom and a ladle nozzle, wherein the lining of the ladle bottom comprises a permanent layer arranged on the inner wall of the ladle bottom and a working layer arranged close to the permanent layer; the method is characterized in that: the inner lining of the ladle wall comprises a heat insulation layer, a permanent layer and a working layer which are sequentially arranged from the inner wall to the center, and the heat insulation layer is fixed on the inner wall of the ladle wall through a reinforcing device; and a plurality of fixing nails used for fixing the heat insulating layer are uniformly distributed on the reinforcing device at intervals.

The utility model discloses technical scheme's further improvement lies in: the reinforcing device comprises a square frame and reinforcing ribs which are arranged in the square frame in parallel at intervals, and the fixing nails are uniformly distributed on the reinforcing ribs.

The utility model discloses technical scheme's further improvement lies in: the reinforcing device comprises a square frame and reinforcing edges distributed in the square frame in a criss-cross mode, and the fixing nails are arranged at the junctions of the reinforcing edges in a criss-cross mode.

The utility model discloses technical scheme's further improvement lies in: gaps formed among the reinforcing edges which are distributed in a criss-cross mode are rectangular holes or rhombic holes.

Due to the adoption of the technical scheme, the utility model discloses the technological progress who gains is:

the utility model has better heat insulation and preservation effects, so that the furnace discharging temperature drop and the temperature drop rate in the ladle are smaller, and the furnace discharging temperature can be effectively reduced; secondly, the temperature of the steel (iron) water in the ladle is more uniform, so that the consistency of the corrosion thickness of the product can be further improved; meanwhile, the yield of the nodulizer is further improved along with the reduction of the tapping temperature, and the adding proportion of the nodulizer can be properly reduced under the condition of ensuring that the residual magnesium content of the finished product is not changed.

And simultaneously, the utility model discloses can need not take place under the prerequisite that changes greatly at former ladle global design, only need to change and build the mode by laying bricks or stones, can reach better thermal-insulated heat preservation effect, can not cause the ladle again to build by laying bricks or stones the cost too big increase, the practicality is better.

Drawings

FIG. 1 is a schematic structural view of a ladle according to the present invention;

FIG. 2 is a schematic view of the structure of a prior art ladle liner;

FIG. 3 is a schematic structural view of the lining of the ladle of the present invention;

FIG. 4 is a schematic structural view of a first reinforcement device of the present invention;

FIG. 5 is a schematic structural view of a second reinforcement device of the present invention;

FIG. 6 is a schematic structural view of a third reinforcement device according to the present invention;

the bag comprises a bag wall 1, a bag bottom 2, a bag mouth 3, a bag mouth 4, a working layer 5, a permanent layer 6, a reinforcing device 6-1, fixing nails 6-2, reinforcing ribs 7 and a heat insulating layer.

Detailed Description

The present invention will be described in further detail with reference to the following examples:

the conventional ladle used at present has a common heat insulation effect, and can influence the temperature drop of molten iron in the ladle and influence the product quality. The ladle with better heat insulation and preservation effects is provided, so that the tapping temperature drop and the temperature drop rate in the ladle are smaller, and the tapping temperature can be effectively reduced; secondly, the temperature of the steel (iron) water in the ladle is more uniform, so that the consistency of the corrosion thickness of the product can be further improved; meanwhile, the yield of the nodulizer is further improved along with the reduction of the tapping temperature, and the adding proportion of the nodulizer can be properly reduced under the condition of ensuring that the residual magnesium content of the finished product is not changed. The ladle with better heat insulation and preservation effects is provided, so that the tapping temperature drop and the temperature drop rate in the ladle are smaller, and the tapping temperature can be effectively reduced; secondly, the temperature of the steel (iron) water in the ladle is more uniform, so that the consistency of the corrosion thickness of the product can be further improved; meanwhile, the yield of the nodulizer is further improved along with the reduction of the tapping temperature, and the adding proportion of the nodulizer can be properly reduced under the condition of ensuring that the residual magnesium content of the finished product is not changed.

As shown in fig. 1 and 3, the foundry ladle comprises a ladle wall 1, a ladle bottom 2 and a ladle nozzle 3, wherein inner liners are arranged on the inner walls of the ladle wall 1, the ladle bottom 2 and the ladle nozzle 3. The inner lining of the ladle bottom 2 comprises a permanent layer 5 arranged on the inner wall of the ladle bottom 2 and a working layer 4 arranged close to the permanent layer 5, the main refractory material of the permanent layer 5 is made of refractory cement and clinker particles, and the working layer 4 is mainly made of refractory brickwork.

The lining of the ladle wall 1 comprises a heat insulation layer 7, a permanent layer 5 and a working layer 4 which are sequentially arranged from the inner wall to the center, wherein the main refractory material of the permanent layer 5 is also made of refractory cement and clinker particles, and the working layer 4 is also mainly made of refractory ladle wall bricks. The heat insulation layer 7 is arranged in a square sheet shape and is fixed on the inner wall of the bag wall 1 through a reinforcing device 6. The reinforcing device 6 comprises a square frame and reinforcing edges 6-2 arranged inside the square frame, and can be provided with various structures, wherein the first structure is shown in figure 4, a plurality of reinforcing edges 6-2 are distributed in the square frame at intervals in parallel, and a plurality of fixing nails 6-1 are uniformly distributed on each reinforcing edge 6-2; in the second structure, as shown in fig. 5, a plurality of reinforcing ribs 6-2 are distributed in a criss-cross manner in the square frame, gaps formed between the reinforcing ribs 6-2 distributed in the criss-cross manner are rectangular holes, and fixing nails 6-1 are arranged at the criss-cross intersection of the reinforcing ribs 6-2; in the third structure, as shown in fig. 6, a plurality of reinforcing ribs 6-2 are distributed in a criss-cross manner in the square frame, gaps formed between the reinforcing ribs 6-2 distributed in the criss-cross manner are rhombic holes, and the fixing nails 6-1 are arranged at the criss-cross intersection of the reinforcing ribs 6-2.

The reinforcing device 6 is fixed on the inner wall of the ladle wall 1 (the fixing nail 6-1 faces to the center of the ladle), and can be welded or fixed by a bolt, then the heat insulation layer 7 is fixed on the fixing nail 6-1, the permanent layer 5 is made of refractory cement and clinker grains, and finally the working layer 4 is made of refractory ladle wall bricks to form the inner lining of the ladle wall. The utility model discloses can need not take place under the prerequisite that changes greatly at former ladle global design, only need to change and build the mode by laying bricks or stones, can reach better thermal-insulated heat preservation effect, can not cause the ladle again to build by laying bricks or stones the cost too big increase, the practicality is better.

Claims

1. A foundry ladle comprises a ladle wall (1) provided with a lining, a ladle bottom (2) and a ladle nozzle (3), wherein the lining of the ladle bottom (2) comprises a permanent layer (5) arranged on the inner wall of the ladle bottom (2) and a working layer (4) arranged close to the permanent layer (5); the method is characterized in that: the inner liner of the ladle wall (1) comprises a heat insulation layer (7), a permanent layer (5) and a working layer (4) which are sequentially arranged from the inner wall to the center, and the heat insulation layer (7) is fixed on the inner wall of the ladle wall (1) through a reinforcing device (6); a plurality of fixing nails (6-1) used for fixing the heat insulating layer (7) are uniformly distributed on the reinforcing device (6) at intervals.

2. A foundry ladle according to claim 1, wherein: the reinforcing device (6) comprises a square frame and reinforcing ribs (6-2) which are arranged inside the square frame and distributed at intervals in parallel, and the fixing nails (6-1) are uniformly distributed on the reinforcing ribs (6-2).

3. A foundry ladle according to claim 1, wherein: the reinforcing device (6) comprises a square frame and reinforcing ribs (6-2) which are arranged inside the square frame and distributed in a criss-cross mode, and the fixing nails (6-1) are arranged at the junctions of the reinforcing ribs (6-2) which are intersected vertically and horizontally.

4. A foundry ladle according to claim 3, wherein: gaps formed among the reinforcing edges (6-2) which are distributed in a criss-cross mode are rectangular holes or rhombic holes.