CN219083719U

CN219083719U - Rotary hearth furnace partition wall

Info

Publication number: CN219083719U
Application number: CN202223508319.4U
Authority: CN
Inventors: 孙永波; 孙吉才
Original assignee: Laiwu Iron & Steel Metallurgy Ecological Engineering Technology Co ltd
Current assignee: Laiwu Iron & Steel Metallurgy Ecological Engineering Technology Co ltd
Priority date: 2022-12-28
Filing date: 2022-12-28
Publication date: 2023-05-26
Anticipated expiration: 2032-12-28

Abstract

The utility model relates to a rotary hearth furnace partition wall, which comprises a wall body positioned between a furnace top and a furnace bottom, wherein a plug layer is formed between the furnace top and the wall body, a refractory material is filled in the plug layer, and the wall body and the furnace inner wall are poured into a whole. According to the utility model, the wall body and the furnace inner wall are poured into a whole, so that the fixing strength of the partition wall is improved, the pouring layer is arched, the structural strength of the partition wall is improved, and the refractory materials are arranged on the upper side and the lower side of the masonry layer, so that the fixing reliability of the refractory materials is ensured, and meanwhile, the refractory materials are prevented from being in direct contact with high-temperature air flow, so that the refractory materials are prevented from falling off, the partition wall can stably exert due functions for a long time, and the downtime and the energy consumption are reduced.

Description

Rotary hearth furnace partition wall

Technical Field

The utility model relates to the technical field of rotary hearth furnaces, in particular to a rotary hearth furnace partition wall.

Background

At present, the rotary hearth furnace partition wall is mostly transplanted by the partition wall of the annular furnace, a partition wall is generally arranged, a structure that a water-cooling seamless pipe is used as a framework to be wrapped with refractory materials is adopted, and the thickness cannot be too high. In the use process, slight tremble is caused by cooling water flow, and the high-temperature air flow in the hearth is scoured, so that the refractory material of the partition wall is cracked and falls off prematurely, and the on-site repair difficulty is high and the effect is poor. The partition wall is used as an important structure for controlling the furnace temperature and the furnace pressure in the hearth of the rotary hearth furnace, if the partition wall is damaged, reasonable furnace temperature distribution and furnace pressure in the hearth cannot be ensured, the reaction atmosphere in the whole hearth is damaged to influence the product quality, and energy waste can be caused.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides the rotary hearth furnace partition wall, which avoids the falling of the refractory material and improves the structural strength of the partition wall.

The utility model is realized by the following technical scheme, and provides a rotary hearth furnace partition wall which comprises a wall body positioned between a furnace top and a furnace bottom, wherein a plug layer is formed between the furnace top and the wall body, refractory materials are filled in the plug layer, and the wall body and the furnace inner wall are poured into a whole.

The rotary hearth furnace partition wall of the scheme is used for arranging the refractory between the wall body and the furnace top, so that the refractory is prevented from directly contacting high-temperature air flow in the furnace, and the refractory is prevented from falling off; the wall body and the furnace inner wall are poured into a whole, so that the reliability of fixing the wall body is improved.

As optimization, the wall body comprises a masonry layer and a pouring layer which is integrally poured with the furnace inner wall, wherein the pouring layer is in an upward arched shape, the top of the pouring layer is tangent to the plug layer, and the masonry layer is positioned in a cavity surrounded by the plug layer, the pouring layer and the furnace inner wall. This optimizing scheme sets up the layer of pouring into the arch, has improved the structural strength of wall body, fills up the cavity that fills in layer, pouring layer and stove interior wall enclose through the layer of building by laying bricks or stones, guarantees the function of use of partition wall, conveniently sets up refractory material between layer and pouring by laying bricks or stones simultaneously, is convenient for realize the setting of double-deck resistant material.

As optimization, refractory fibers are laid between the masonry layer and the pouring layer. The setting of this optimization scheme makes the upper and lower both sides of laying bricks or stones the layer all be equipped with refractory material, has improved the performance of partition wall.

As optimization, the radial thickness of the pouring layer is 500-700 mm. The thickness of the pouring layer of the optimized scheme is set, so that the reliability of the partition wall used as a rotary hearth furnace for controlling the furnace temperature and the furnace pressure structure in the furnace chamber is ensured.

Preferably, the pouring layer is formed by pouring corundum-mullite pouring materials. The high-temperature strength and the high-temperature creep resistance of the pouring layer are improved by the aid of the optimization scheme, so that the structural performance of the partition wall is further improved.

The beneficial effects of the utility model are as follows: the fixing strength of the partition wall is improved by casting the wall body and the furnace inner wall into a whole, the structural strength of the partition wall is improved by arranging the casting layer into an arch shape, the refractory materials are arranged on the upper side and the lower side of the masonry layer, the reliability of the fixation of the refractory material is ensured, and meanwhile, the direct contact of the refractory material and high-temperature air flow is avoided, so that the refractory material is prevented from falling off, the partition wall can stably exert the due function for a long time, and the downtime and the energy consumption are reduced.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

the figure shows:

1. furnace bottom, 2, furnace outer wall, 3, wall, 4, furnace top, 5, furnace inner wall, 301, casting layer, 302, masonry layer, 303 and filling layer.

Detailed Description

In order to clearly illustrate the technical characteristics of the scheme, the scheme is explained below through a specific embodiment.

The rotary hearth furnace partition wall shown in fig. 1 comprises a wall body 3 positioned between a furnace top 4 and a furnace bottom 1, wherein a plug layer 303 is formed between the furnace top and the wall body, refractory materials are filled in the plug layer 303, and preferably, the refractory materials in the plug layer are zirconium-containing refractory fibers.

The wall body is poured into a whole with the furnace inner wall 5 and the furnace outer wall 2, specifically, the wall body 3 comprises a masonry layer 302 and a pouring layer 301 which is poured into a whole with the furnace inner wall, the pouring layer 301 is an arch which is arched upwards when the pouring layer is poured into the furnace outer wall, the top of the pouring layer is tangent with the plug filling layer, the masonry layer is positioned in a cavity surrounded by the plug filling layer, the pouring layer and the furnace inner wall, the top surfaces of the masonry layers at two sides are all parallel and level with the top of the pouring layer, and zirconium-containing refractory fibers are laid between the masonry layer and the pouring layer.

The radial thickness of the pouring layer is 500-700 mm, and as a preferable scheme, the radial thickness of the pouring layer is 600mm. The pouring layer is formed by pouring corundum mullite pouring materials so as to ensure the high-temperature strength and the high-temperature creep resistance of the partition wall, thereby prolonging the service life of the partition wall.

The rotary hearth furnace partition wall has the advantages of simple structure, high and stable strength and convenient maintenance, and can fully exert the efficiency of the partition wall and perform the function for a long time and stably.

Of course, the above description is not limited to the above examples, and the technical features of the present utility model that are not described may be implemented by or by using the prior art, which is not described herein again; the above examples and drawings are only for illustrating the technical scheme of the present utility model and not for limiting the same, and the present utility model has been described in detail with reference to the preferred embodiments, and it should be understood by those skilled in the art that changes, modifications, additions or substitutions made by those skilled in the art without departing from the spirit of the present utility model and the scope of the appended claims.

Claims

1. A rotary hearth furnace partition wall, characterized in that: the furnace comprises a wall body (3) positioned between a furnace top (4) and a furnace bottom (1), wherein a plug layer (303) is formed between the furnace top and the wall body, refractory materials are filled in the plug layer (303), and the wall body and a furnace inner wall (5) are poured into a whole.

2. A rotary hearth furnace partition according to claim 1, wherein: the wall body (3) comprises a masonry layer (302) and a pouring layer (301) which is integrally poured with the furnace inner wall, wherein the pouring layer (301) is in an upward arched shape, the top of the pouring layer is tangent to the plug layer, and the masonry layer is arranged in a cavity surrounded by the plug layer, the pouring layer and the furnace inner wall.

3. A rotary hearth furnace partition according to claim 2, wherein: refractory fibers are laid between the masonry layer and the pouring layer.

4. A rotary hearth furnace partition according to claim 2, wherein: the radial thickness of the pouring layer is 500-700 mm.

5. A rotary hearth furnace partition according to claim 1, wherein: the pouring layer is formed by pouring corundum mullite pouring materials.