CN220597576U

CN220597576U - Furnace bottom supporting brick capable of avoiding powder of supporting brick from adhering to steel plate during high-temperature heat treatment

Info

Publication number: CN220597576U
Application number: CN202322063286.5U
Authority: CN
Inventors: 尹晶晶; 李龙; 常智渊; 刘一博; 陈林
Original assignee: Pangang Group Research Institute Co Ltd
Current assignee: Pangang Group Research Institute Co Ltd
Priority date: 2023-08-02
Filing date: 2023-08-02
Publication date: 2024-03-15
Anticipated expiration: 2033-08-02

Abstract

The utility model provides a furnace bottom support brick for preventing support brick powder from being stuck to a steel plate during high-temperature heat treatment, wherein the furnace bottom support brick comprises refractory bricks positioned at the lower part and an alumina tube or an alumina rod positioned at the upper part; the top of the refractory brick is provided with a groove arranged along the length direction of the refractory brick, the alumina tube or the alumina rod is arranged in the groove and fixed with the groove, and the top of the alumina tube or the alumina rod is higher than the top of the refractory brick. The furnace bottom support brick provided by the utility model can stably support the steel plate, the contact between the furnace bottom support brick and the steel plate is changed from the traditional surface contact to the line contact, so that the uniform heating of the steel plate is ensured as much as possible, meanwhile, the phenomenon of falling powder can not occur at the contact part of the aluminum oxide tube or the aluminum oxide rod and the steel plate, the steel plate can not be damaged, and the printing can not be remained on the steel plate.

Description

Furnace bottom supporting brick capable of avoiding powder of supporting brick from adhering to steel plate during high-temperature heat treatment

Technical Field

The utility model relates to the technical field of heating furnace bottom bricks, in particular to a furnace bottom supporting brick which prevents supporting brick powder from adhering to a steel plate during high-temperature heat treatment.

Background

In the steel field, a heating furnace is often used to heat treat a metal material. In particular, for the heat treatment of a hot formed steel sheet, it is required that the steel sheet is heated uniformly and is convenient to take and place, generally, light bricks in a straight shape are placed on a heating bottom brick at intervals as supports, and then the steel sheet is placed on the light bricks to be heated. At high temperatures, light weight bricks tend to tilt and fracture, and light weight brick materials tend to stick to steel plates. In order to ensure that the light bricks can support steel plates with enough weight, the light bricks are usually square bricks, so that the steel plates and the light bricks are in surface contact, and the steel plates are not uniformly heated. And during high-temperature heat treatment, the light brick directly contacts with the surface of the steel plate, and after the heat treatment is finished, powder of the light brick can be adhered to the surface of the steel plate to leave a trace, and particularly for the coated steel plate, the surface coating of the light brick is easy to be adhered.

Therefore, there is an urgent need for a hearth support block that has a simple structure, stably supports a steel plate, has a contact area with the steel plate as small as possible, and does not stick materials.

Disclosure of Invention

According to the technical problems, the furnace bottom supporting brick is provided for avoiding the powder of the supporting brick from adhering to the steel plate during high-temperature heat treatment.

The utility model adopts the following technical means:

a hearth support brick for preventing support brick powder from adhering to a steel plate during high-temperature heat treatment, the hearth support brick comprising a refractory brick at a lower part and an alumina tube or an alumina rod at an upper part; the top of the refractory brick is provided with a groove arranged along the length direction of the refractory brick, the alumina tube or the alumina rod is arranged in the groove and fixed with the groove, and the top of the alumina tube or the alumina rod is higher than the top of the refractory brick.

Preferably, the alumina tube or the alumina rod is adhered and fixed with the groove through a high-temperature adhesive.

Preferably, the bottom of the refractory brick has a protruding insert for insertion into a furnace floor mounting recess.

Preferably, the furnace bottom mounting groove is a straight groove or a dovetail groove, and the protruding cutting is matched with the furnace bottom mounting groove.

Preferably, the refractory bricks are lightweight refractory bricks. Further, the refractory brick is a mullite brick.

Preferably, the alumina tube or the alumina rod is a high-purity alumina tube or alumina rod.

Compared with the prior art, the utility model has the following advantages:

according to the utility model, the furnace bottom support bricks are arranged into two parts, one part is the refractory bricks, the other part is the alumina tubes or the alumina rods, the refractory bricks are used for being connected with the furnace bottom and supporting the alumina tubes or the alumina rods, the alumina tubes or the alumina rods are used for supporting the steel plate, the alumina tubes or the alumina rods are arranged behind the furnace bottom and stably support the steel plate, the steel plate does not have an inclination phenomenon, the contact between the steel plate and the steel plate is changed from the traditional surface contact into the line contact, the uniform heating of the steel plate is ensured as much as possible, and meanwhile, the phenomenon of falling powder does not occur at the contact part of the alumina tubes or the alumina rods and the steel plate, the steel plate is not damaged, and the steel plate is not printed.

For the reasons, the utility model can be widely popularized in the fields of furnace bottom refractory bricks and the like.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a bottom support brick structure for avoiding adhesion of support brick powder to a steel plate during high temperature heat treatment in accordance with an embodiment of the present utility model.

FIG. 2 is a schematic view of the structure of a refractory brick in an embodiment of the utility model.

FIG. 3 is a schematic view of a furnace support brick in accordance with an embodiment of the present utility model.

In the figure: 1. refractory bricks; 2. an alumina tube; 3. a groove; 4. protruding cutting; 5. and (3) a steel plate.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be clear that the dimensions of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model: the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.

As shown in fig. 1 to 3, a hearth support brick for preventing a support brick powder from sticking to a steel plate during a high-temperature heat treatment, the hearth support brick comprising a refractory brick 1 at a lower portion and an alumina tube 2 or an alumina rod at an upper portion; in the specific embodiment, the refractory brick adopts a light refractory brick which is a mullite brick. In the embodiment, an alumina tube 2 is adopted and is a high-purity alumina tube;

the top of the refractory brick 1 is provided with a groove 3 arranged along the length direction of the refractory brick, the alumina tube 2 is arranged in the groove 3 and is bonded and fixed with the groove 3 through a high-temperature adhesive, and the top of the alumina tube 2 is higher than the top of the refractory brick 1.

The bottom of the refractory brick 1 has a male insert 4 for insertion into a furnace bottom mounting recess.

The furnace bottom mounting groove is a straight groove or a dovetail groove, and the protruding cutting 4 is matched with the furnace bottom mounting groove. In this embodiment, a straight slot is adopted, and the protruding cutting 4 is a straight protruding cutting.

In the use state, a plurality of furnace bottom support bricks are inserted into a furnace bottom installation groove of the furnace bottom through the convex cutting 4, a steel plate 5 is placed on the aluminum oxide tube 2, the length of the furnace bottom support bricks can be determined according to the furnace cavity of the heat treatment furnace, and the diameter of the aluminum oxide tube 2 can be determined according to the bearing requirement of the furnace bottom support bricks.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims

1. A furnace bottom support brick for avoiding the adhesion of support brick powder to a steel plate during high temperature heat treatment, which is characterized by comprising refractory bricks positioned at the lower part and alumina tubes or alumina rods positioned at the upper part;

the top of the refractory brick is provided with a groove arranged along the length direction of the refractory brick, the alumina tube or the alumina rod is arranged in the groove and fixed with the groove, and the top of the alumina tube or the alumina rod is higher than the top of the refractory brick.

2. The hearth support brick for preventing adhesion of support brick powder to a steel plate at the time of high temperature heat treatment according to claim 1, wherein the alumina tube or the alumina rod is bonded and fixed to the groove by a high temperature adhesive.

3. The hearth support brick for preventing adhesion of support brick powder to a steel plate during high temperature heat treatment according to claim 1, wherein the refractory brick has a bottom portion provided with a protruding insert for insertion into a hearth-mounting recess.

4. A hearth support brick for preventing a support brick powder from sticking to a steel plate in a high-temperature heat treatment according to claim 3, wherein said hearth-mounting groove is a straight groove or a dovetail groove, and said protruding cutting is fitted to said hearth-mounting groove.

5. The hearth support brick of claim 1 wherein said refractory brick is a lightweight refractory brick that prevents adhesion of support brick fines to steel sheet during high temperature heat treatment.

6. The hearth support brick of claim 5 wherein said refractory brick is a mullite brick that prevents adhesion of support brick powder to a steel plate during high temperature heat treatment.