CN218443319U

CN218443319U - Air cooling joist for furnace mantle partition wall

Info

Publication number: CN218443319U
Application number: CN202221931924.XU
Authority: CN
Inventors: 朱璠璠; 张卫华; 刘洋; 陶文武; 唐佳润; 刘胜歌; 李贺
Original assignee: Beijing Shougang International Engineering Technology Co Ltd
Current assignee: Beijing Shougang International Engineering Technology Co Ltd
Priority date: 2022-07-26
Filing date: 2022-07-26
Publication date: 2023-02-03
Anticipated expiration: 2032-07-26

Abstract

The embodiment of the application discloses furnace mantle partition wall air cooling joist relates to metallurgical industry furnace mantle equipment technical field, includes: a first traverse module comprising: a joist main body; the air draft bellows is connected with the joist main body; the heat insulation module is wrapped on the outer layer of the joist main body; the separation module, the separation module set up in the lower extreme of joist main part, the separation module is used for blockking that the harmful flue gas of forced air drying section scurries to convulsions drying section. Through setting up heat insulating module and separation module, isolated the low wet flue gas of blast drying section and the erosion of convulsions drying section high temperature gas to the joist, avoided the joist to damage.

Description

Air cooling joist for furnace mantle partition wall

Technical Field

The application relates to the technical field of metallurgical industry furnace mantle equipment, in particular to a furnace mantle partition wall air cooling joist.

Background

In the production process of the pellets of the straight grate type roasting machine, a blast drying section (UDD) and an air draft drying section (DDD) are arranged for drying green pellets. A partition wall device is arranged between the air blowing drying section (UDD) and the air draft drying section (DDD). The existing partition wall structure is a partition wall form that a lower water-cooling joist supports refractory bricks or an upper steel structure beam hangs refractory bricks. The water-cooling joist has the problems of corrosion and water leakage, the steel structure crossbeam hanging refractory brick has the problems of foreign matters or abnormal material surface collision or scraping and rubbing of the partition wall, so that the lower part of the partition wall falls or collapses, and the belt type roasting machine is forced to stop production and maintenance. And pollutants such as SO2, NOx and the like exist in the smoke of the exhaust drying section (DDD), and the smoke easily enters an upper cover of the blast drying section (UDD) in production, is dedusted and then is discharged into the atmosphere. Because the blast drying flue gas does not contain pollutants such as SO2, NOx and the like, only dust removal treatment is carried out, SO that the pollutants such as SO2, NOx and the like which are emitted from an induced draft drying section (DDD) are directly emitted into the atmosphere to pollute the environment.

SUMMERY OF THE UTILITY MODEL

An object of this application is to provide a sideslip car to solve the technical problem that exists among the prior art: the technical problems that the joist of the partition wall of the furnace hood of the existing belt type roasting machine leaks water, falls bricks or collapses and the upper hood of the air draft drying section is covered with air to the upper hood of the air blast drying section are solved.

In order to solve the technical problem, the following technical scheme is adopted in the application:

the first aspect of this application embodiment provides a furnace mantle partition wall air cooling joist, includes: a joist main body;

the air draft bellows is connected with the joist main body; the heat insulation module is wrapped on the outer layer of the joist main body; the separation module, the separation module set up in the lower extreme of joist main part, the separation module is used for blockking that the harmful flue gas of forced air drying section scurries to convulsions drying section.

In some embodiments, the joist body comprises: the air exhaust fan comprises a first steel pipe, a second steel pipe and an air exhaust fan, wherein two ends of the first steel pipe are closed, one side of the first steel pipe is provided with an air inlet, the other side of the first steel pipe is provided with an air outlet, and the air exhaust fan is connected with the air outlet through an air outlet pipe; one end of the first air inlet pipe is connected with the air inlet, and the other end of the first air inlet pipe is connected with the roasting machine.

In some embodiments, the insulation module comprises: the mounting assembly is fixed on the first steel pipe; and the composite masonry layer is fixed on the mounting component.

In some embodiments, the composite masonry course comprises: the high-temperature-resistant fiber felt is fixed on the outer layer of the first steel pipe through a mounting assembly; the fireproof pouring layer is poured on the outer side of the high-temperature-resistant fiber felt.

In some embodiments, the mounting assembly includes a plurality of rows of anchoring hooks disposed on the first steel pipe.

In some embodiments, the barrier module comprises: the second steel pipe is fixed at the lower end of the first steel pipe; the air blowing hole is formed in the lower end of the second steel pipe; and the air blowing assembly is connected with the second steel pipe.

In some embodiments, the blower assembly comprises a blower and a second air inlet duct, the blower being connected to the second steel duct by the second air inlet duct.

In some embodiments, the air blowing hole is elongated, and the air blowing hole is provided with a plurality of air blowing holes.

In some embodiments, angle steel is welded around the first steel pipe and the second steel pipe, and the angle steel is used for connecting the roasting machine.

In some embodiments, the angle steel is made of stainless steel or boiler steel.

According to the technical scheme, the method has at least the following advantages and positive effects:

a stove cover partition wall air cooling joist in this application through setting up heat insulating module and separation module, has completely cut off the low wet flue gas of blast drying section (UDD) and the erosion of convulsions drying section (DDD) high temperature gas to the joist, avoids the joist to damage.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of an air-cooled joist of a furnace mantle partition wall according to an embodiment;

FIG. 2 is a schematic view of a partial structure of an air-cooled joist of a furnace mantle partition according to an embodiment;

fig. 3 is a second partial schematic structural view of an air-cooled joist of a furnace mantle partition according to the embodiment.

The reference numerals are illustrated below: 1. a first steel pipe; 2. a high temperature resistant fiber mat; 3. a refractory casting layer; 4. a first air inlet pipe; 5. a second air inlet pipe; 6. an air outlet pipe; 7. an anchoring hook; 8. a second steel pipe; 9. and (4) air blowing holes.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.

The terms "first", "second" and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", "third" may explicitly or implicitly include one or more of the features.

In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it should be noted that, unless otherwise explicitly stated or limited, the terms "communicate," "mount," "connect," and "connect" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in this application will be understood to be a specific case for those of ordinary skill in the art.

Please refer to fig. 1, fig. 2 and fig. 3.

Fig. 1 to 3 are schematic structural views of an air-cooled joist for a furnace mantle partition wall according to an embodiment of the present invention, and as shown in the drawings, the air-cooled joist comprises: a joist main body; the air draft bellows is connected with the joist main body; the heat insulation module is wrapped on the outer layer of the joist main body; and the separation module is arranged at the lower end of the joist main body and is used for preventing harmful smoke in the blast drying section from channeling to the exhaust drying section. Through setting up heat insulating module and separation module, isolated the low wet flue gas of air-blast drying section (UDD) and convulsions drying section (DDD) high temperature gas to the erosion of joist, avoided the joist to damage.

In this embodiment, the joist main body includes: the air exhaust fan comprises a first steel pipe 1, wherein two ends of the first steel pipe 1 are closed, one side of the first steel pipe 1 is provided with an air inlet, the other side of the first steel pipe 1 is provided with an air outlet, and an air exhaust bellows is connected with the air outlet through an air outlet pipe 6; one end of the first air inlet pipe 4 is connected with the air inlet, and the other end of the first air inlet pipe 4 is connected with the roasting machine. In the specific implementation process of this embodiment, the gas in the joist is derived from the air outside the roasting machine, and is led to the wind box after passing through the first steel pipe 1, without a separate cooling fan.

In this embodiment, the heat insulation module includes: the mounting assembly is fixed on the first steel pipe 1; and the composite masonry layer is fixed on the mounting component.

In this embodiment, the composite masonry course comprises: the high-temperature resistant fiber felt 2 is fixed on the outer layer of the first steel pipe 1 through a mounting assembly; and the fireproof pouring layer 3 is poured on the outer side of the high-temperature-resistant fiber felt 2.

In this embodiment, the mounting assembly includes a plurality of rows of anchoring hooks 7 disposed on the first steel duct 1.

In this embodiment, the barrier module includes: a second steel pipe 8, wherein the second steel pipe 8 is fixed at the lower end of the first steel pipe 1; the air blowing hole 9 is formed in the lower end of the second steel pipe 8, and the air blowing hole 9 is formed in the lower end of the second steel pipe; and the air blowing assembly is connected with the second steel pipe 8. And the gas in the second steel pipe flows out through the gas blowing holes to form a wind curtain so as to prevent harmful smoke in a blast drying section (UDD) from flowing to an exhaust drying section (DDD).

In this embodiment, the blower assembly includes a blower and a second air inlet pipe 5, and the blower is connected with the second steel pipe 8 through the second air inlet pipe 5.

In this embodiment, the air blowing hole 9 is elongated, and a plurality of air blowing holes 9 are provided.

In this embodiment, angle steel is welded around first steel pipe 1 and the second steel pipe, the angle steel is used for connecting the roasting machine.

In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a furnace mantle partition air cooling joist which characterized in that includes:

a joist body;

the air draft bellows is connected with the joist main body;

the heat insulation module is wrapped on the outer layer of the joist main body;

the separation module, the separation module set up in the lower extreme of joist main part, the separation module is used for blockking that the harmful flue gas of forced air drying section scurries to convulsions drying section.

2. The air-cooled joist of a furnace mantle partition according to claim 1, characterized in that the joist body comprises:

the two ends of the first steel pipe are closed, an air inlet is formed in one side of the first steel pipe, an air outlet is formed in the other side of the first steel pipe, and the air draft air box is connected with the air outlet through an air outlet pipe;

one end of the first air inlet pipe is connected with the air inlet, and the other end of the first air inlet pipe is connected with the roasting machine.

3. The air-cooled joist of a furnace mantle partition according to claim 2, characterized in that the heat insulation module comprises:

the mounting assembly is fixed on the first steel pipe;

and the composite masonry layer is fixed on the mounting component.

4. The air-cooled joist of a furnace mantle partition according to claim 3, characterized in that the composite masonry layer comprises:

the high-temperature-resistant fiber felt is fixed on the outer layer of the first steel pipe through a mounting assembly;

and the fireproof pouring layer is poured on the outer side of the high-temperature-resistant fiber felt.

5. The air-cooled joist of a furnace mantle partition according to claim 3, wherein said mounting assembly comprises a plurality of rows of anchoring hooks disposed on said first steel tube.

6. The air-cooled joist of a furnace mantle partition according to claim 2, characterized in that the blocking module comprises:

the second steel pipe is fixed at the lower end of the first steel pipe;

the air blowing hole is formed in the lower end of the second steel pipe;

and the air blowing assembly is connected with the second steel pipe.

7. The air-cooled joist of a furnace mantle partition according to claim 6, characterized in that the blower assembly comprises a blower and a second air inlet pipe, the blower is connected with the second steel pipe through the second air inlet pipe.

8. The air-cooled joist of a furnace mantle partition according to claim 7, characterized in that the blowholes are elongated and there are a plurality of blowholes.

9. The air-cooled joist of a furnace mantle partition according to claim 6, characterized in that angle steel is welded around the first steel pipe and the second steel pipe, and the angle steel is used for connecting a roasting machine.

10. The hood partition air-cooled joist of claim 9, wherein the angle steel is made of stainless steel or boiler steel.