CN215713087U

CN215713087U - Cooling structure for copper plate of clamping shell

Info

Publication number: CN215713087U
Application number: CN202121445059.3U
Authority: CN
Inventors: 李�杰; 胡显波; 贾娟鱼; 李少强; 郭隆; 游梅英; 张玉栋; 杜鹃; 屈俊杰; 王凤; 习琛; 龙孟
Original assignee: CISDI Engineering Co Ltd
Current assignee: CISDI Engineering Co Ltd
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2022-02-01
Anticipated expiration: 2031-06-28

Abstract

The utility model belongs to the field of iron-making blast furnaces, and relates to a cooling structure for a copper plate with a sandwich shell, which comprises copper cooling plates arranged through a blast furnace shell and a cooling structure with a sandwich shell arranged between the outer side of the blast furnace shell and the copper cooling plates, wherein each copper cooling plate comprises a plurality of cooling units which are arranged in parallel, each cooling unit comprises a cooling belt and a plurality of cooling zones which are linearly arranged on the cooling belt, and the cooling zones on the adjacent cooling belts are arranged in a staggered manner. The structure utilizes the high-strength cooling characteristic of the copper cooling plate to push the safe working surface of the blast furnace lining inwards; the structure utilizes the full-coverage jacketed cooling on the furnace shell to eliminate the copper plate cooling blind area; the structure utilizes the full-covering jacketed cooling at the outer side of the furnace shell and the high-heat-conductivity refractory material at the inner side of the furnace shell to strengthen the uniform cooling of the blast furnace; the structure can realize safe and long-life production from the hearth, the furnace bosh to the furnace body of the blast furnace.

Description

Cooling structure for copper plate of clamping shell

Technical Field

The utility model belongs to the field of iron-making blast furnaces, and relates to a cooling structure for a copper plate with a shell.

Background

Blast furnace iron-making technology is developed to the present day and is mature, but the pursuit and research of the long service life of the blast furnace in the iron-making industry are endless. With the technical progress of operation, process, refractory materials, equipment and the like, the first-generation furnace age of the blast furnace is developed from the previous years to the present dozens and twenty years, and the condition that the blast furnace can not have a long service life and even has a burnthrough accident sometimes occurs.

The existing blast furnace cooling structure comprises cast iron cooling wall cooling, copper cooling wall cooling, a trough plate cooling mode and copper plate cooling, wherein the cast iron cooling wall cooling has poor cooling thermal conductivity and low cooling strength, so that the aim of effectively protecting refractory materials of a hearth cannot be fulfilled; the copper cooling wall is easy to deform due to high plasticity of copper, is used in a hearth and is easy to deform to form an air gap, cannot achieve the purpose of protecting refractory materials of the hearth, and is used above a hearth and is easy to frequently slag and drop due to high thermal conductivity and high ductility, so that furnace condition fluctuation and equipment damage are caused; as all cooling equipment is omitted in the cooling of the groove plates, a steel plate is arranged outside the furnace shell to form a cooling channel, the furnace shell is directly contacted with refractory materials of the hearth, once molten iron is mixed, the furnace shell is exposed to the molten iron, and the danger is extremely high; the copper plate cooling is only used for the case above the furnace belly, and the copper plate cooling is arranged in a dot shape, so that the problems of cooling blind areas, uneven cooling, easy occurrence of furnace shell reddening, even burning-through, unsmooth furnace conditions and the like exist, and the current cooling mode cannot achieve the purposes of long service life and safety.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides a cooling structure for a copper plate with a clamped shell, which is simple and reasonable, is easy to operate, and can effectively prolong the service life of a blast furnace and ensure efficient and long-life production.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a double-layered shell copper cooling structure, includes the copper cooling plate that passes the blast furnace stove outer covering setting, sets up the double-layered shell cooling structure between the blast furnace stove outer covering outside and copper cooling plate, the copper cooling plate includes a plurality of cooling unit who arranges side by side, and every cooling unit includes cooling zone and the linear a plurality of cooling zone that sets up on the cooling zone, and the cooling zone staggered arrangement on the adjacent cooling zone.

Optionally, the distances between the different cooling zones and the furnace shell of the blast furnace are the same or different.

Optionally, the blast furnace further comprises a heat-conducting refractory layer arranged between the inner side of the blast furnace shell and the copper cooling plate.

Optionally, the cooling structure of the sandwiched shell is a fully-covered water flow channel which is arranged outside the furnace shell of the blast furnace and is coiled.

Optionally, the water flow channel is arranged along the height direction of the blast furnace shell, and a plurality of water flow channels are arranged in parallel along the circumferential direction of the blast furnace shell.

Optionally, the water flow channel is arranged along a direction perpendicular to the height of the blast furnace shell, and a plurality of water flow channels are arranged in parallel along the circumferential direction of the blast furnace shell.

Optionally, a water inlet and a water outlet are arranged at two ends of the water flow passage.

Optionally, the water inlet on the water flow passage is arranged at the lower end thereof, and the water outlet is arranged at the upper end thereof.

The utility model has the beneficial effects that:

1. the utility model arranges the copper cooling plates on the blast furnace shell, and pushes the safe working surface of the blast furnace lining inwards by utilizing the high-strength cooling characteristic of the copper cooling plates.

2. The full-coverage jacketed cooling is arranged between the outer side of the blast furnace shell and the copper cooling plates, so that a copper plate cooling blind area is eliminated.

3. The utility model arranges the inner heat conduction fire-resistant layer between the inner side of the furnace shell and the copper cooling plate to enhance the cooling uniformity of the blast furnace.

4. The structure of the utility model can be applied to a blast furnace hearth to form a long-life hearth by matching with large carbon bricks or small carbon bricks or other high-heat-conductivity refractory materials, and can also be applied to a furnace body from a furnace bosh to form a long-life stable blast furnace by matching with silicon nitride and silicon carbide bricks or other refractory materials.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.

Drawings

For the purposes of promoting a better understanding of the objects, aspects and advantages of the utility model, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic structural diagram according to a first embodiment of the present invention;

FIG. 2 is a schematic structural diagram according to a second embodiment of the present invention;

fig. 3 is a schematic diagram of the prior art.

Reference numerals: the blast furnace comprises copper cooling plates 1, a blast furnace shell 2, heat-insulating spray paint 3, a heat-conducting fire-resistant layer 4, a water inlet 5, a water flow channel 6 and a water outlet 7.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The utility model is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.

Wherein the showings are for the purpose of illustrating the utility model only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the utility model thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.

Referring to fig. 2 to 3, which are schematic views of a cooling structure of a copper plate with a sandwich shell according to the present invention, fig. 2 shows a first embodiment, in which the overall structure includes a copper cooling plate 1 disposed on a furnace shell 2 of a blast furnace, and the copper cooling plate 1 extends into the blast furnace, so as to push a refractory safety working surface of the blast furnace into the furnace; a cooling water flow channel 6 of a sandwich shell is arranged between the outer side of a blast furnace shell 2 and a copper cooling plate 1, the flow channel is arranged in a snake shape, a water inlet 5 is arranged at the lower part of the flow channel, a water outlet 7 is arranged at the upper part of the flow channel, a heat conduction fire-resistant layer 4 is arranged between the inner side of the blast furnace shell 2 and the copper cooling plate 1, and a structure formed by the copper cooling plate 1, the water flow channel 6 and the heat conduction fire-resistant layer 4 can be used in a furnace cylinder, a furnace belly and a furnace body and is matched with corresponding refractory materials to form a safe and long-life blast furnace. In the first embodiment, the cooling belts of the copper cooling plates 1 are arranged along the height direction of the blast furnace; and fig. 3 shows an embodiment two in which the cooling belts of the copper cooling plates 1 are arranged in a direction perpendicular to the height of the blast furnace.

Referring to fig. 1, the structure of the existing copper plate blast furnace used above the furnace belly is composed of copper cooling plates 1, a blast furnace shell 2 and heat insulation spray coatings 3, and the furnace inner refractory materials are arranged in the blast furnace shell 2.

Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.

Claims

1. The utility model provides a double-layered shell copper cooling structure which characterized in that: the cooling structure comprises copper cooling plates arranged by penetrating through a blast furnace shell, and a clamping shell cooling structure arranged between the outer side of the blast furnace shell and the copper cooling plates, wherein the copper cooling plates comprise a plurality of cooling units arranged in parallel, each cooling unit comprises a cooling belt and a plurality of cooling zones linearly arranged on the cooling belt, and the cooling zones on the adjacent cooling belts are arranged in a staggered manner.

2. The jacketed copper plate cooling structure according to claim 1, characterized in that: the distances between the different cooling zones and the blast furnace shell are the same or different.

3. The jacketed copper plate cooling structure according to claim 1, characterized in that: the blast furnace further comprises a heat-conducting refractory layer arranged between the inner side of the blast furnace shell and the copper cooling plate.

4. The jacketed copper plate cooling structure according to claim 1, characterized in that: the cooling structure of the sandwich shell is a fully-covered water flow channel which is arranged on the outer side of the blast furnace shell in a winding mode.

5. The jacketed copper plate cooling structure according to claim 4, characterized in that: the water flow channels are arranged along the height direction of the blast furnace shell, and a plurality of water flow channels are arranged in parallel along the circumferential direction of the blast furnace shell.

6. The jacketed copper plate cooling structure according to claim 4, characterized in that: the water flow channels are arranged along the direction vertical to the height of the blast furnace shell, and a plurality of water flow channels are arranged in parallel along the circumferential direction of the blast furnace shell.

7. The jacketed copper plate cooling structure according to claim 4, characterized in that: and a water inlet and a water outlet are arranged at the two ends of the water flow channel.

8. The jacketed copper plate cooling structure according to claim 7, characterized in that: the water inlet on the water flow channel is arranged at the lower end of the water flow channel, and the water outlet is arranged at the upper end of the water flow channel.