CN220187435U

CN220187435U - Furnace mouth and electric furnace

Info

Publication number: CN220187435U
Application number: CN202321695707.XU
Authority: CN
Inventors: 杨久义
Original assignee: Inner Mongolia Xinchuang Metallurgy Co ltd
Current assignee: Inner Mongolia Xinchuang Metallurgy Co ltd
Priority date: 2023-06-30
Filing date: 2023-06-30
Publication date: 2023-12-15
Anticipated expiration: 2033-06-30

Abstract

The utility model provides a furnace mouth and an electric furnace, which comprises an outer layer and an inner layer, wherein the cross section of the outer layer is V-shaped, the inner layer is made of a high-temperature-resistant heat-insulating material, the shape of the inner layer is matched with that of the outer layer, the inner layer is detachably connected to the inside of the outer layer, and the inner layer completely covers the inner surface of the outer layer. The utility model makes the temperature rise of the outer layer not obvious, reduces the possibility of deformation of the outer layer, prolongs the service life of the whole furnace mouth, reduces the replacement times and improves the production efficiency of the electric furnace.

Description

Furnace mouth and electric furnace

Technical Field

The utility model relates to the technical field of electric furnaces, in particular to a furnace mouth and an electric furnace.

Background

An electric furnace is a heating furnace capable of converting electric energy in the furnace into heat to heat a workpiece or a material, and is mainly classified into a resistance furnace, an arc furnace, a plasma furnace, and the like.

In the electric furnace, the added materials are subjected to high-temperature melting, oxygen blowing, refining and other processes to form high-temperature molten fluid, the high-temperature molten fluid is discharged from the furnace mouth of the electric furnace, and the required product is cast.

In the process, the high-temperature molten fluid directly contacts and flushes the furnace mouth, so that the furnace mouth is in a high-temperature condition for a long time, and the furnace mouth can be deformed at high temperature, cracked and the like, so that the service life of the furnace mouth is short. Therefore, the furnace mouth needs to be replaced frequently, the running cost of the electric furnace is increased, and the production efficiency of the electric furnace is reduced.

Disclosure of Invention

The utility model provides a furnace mouth and an electric furnace, which enable the temperature rise of an outer layer to be insignificant, reduce the possibility of deformation of the outer layer, prolong the service life of the whole furnace mouth, reduce the replacement times and improve the production efficiency of the electric furnace.

In order to solve the technical problems, the utility model adopts the following technical scheme:

according to a first aspect of the utility model, there is provided a furnace mouth comprising an outer layer and an inner layer, the cross section of the outer layer is V-shaped, the inner layer is made of a high temperature resistant heat insulating material, the shape of the inner layer is matched with that of the outer layer, the inner layer is detachably connected to the inside of the outer layer, and the inner layer completely covers the inner surface of the outer layer.

The outer layer is V-shaped to form the general structure of the furnace mouth. When the furnace is discharged, the high-temperature molten fluid is directly contacted with the inner layer, the outer layer is not contacted, the inner layer is made of high-temperature-resistant heat insulation materials, the high-temperature-resistant heat insulation material can bear the high temperature of the fluid, and can insulate heat, so that only a small part of the heat of the fluid can be transferred to the outer layer, the temperature of the outer layer is not obviously increased, and the deformation is not easy to occur.

Compared with the prior art, the inner layer of the furnace mouth is directly contacted with high-temperature molten fluid, the outer layer is not contacted with the fluid, the inner layer can bear high temperature and realize heat insulation, so that the temperature rise of the outer layer is not obvious, the possibility of deformation of the outer layer is reduced, the service life of the whole furnace mouth is prolonged, the replacement times are reduced, and meanwhile, the production efficiency of the electric furnace is also improved.

In an embodiment of the present utility model, the side wall of the inner layer is higher than the side wall of the outer layer, and a folded edge is disposed at the top end of the side wall of the inner layer, and the folded edge abuts against the top surface of the side wall of the outer layer.

In one embodiment of the utility model, the flange is bolted to the side wall of the inner layer.

In an embodiment of the present utility model, a plurality of clamping grooves are formed in a top surface of the side wall of the outer layer, a plurality of clamping blocks are formed in a bottom surface of the folded edge, the number of the clamping blocks is equal to that of the clamping grooves, and the plurality of clamping blocks are clamped into the plurality of clamping grooves in a one-to-one correspondence manner.

In an embodiment of the utility model, a cross section of the clamping groove is trapezoidal.

In an embodiment of the utility model, the outer layer is provided with cooling water channels.

In one embodiment of the utility model, the outer layer is provided with a mounting flange provided with mounting holes for connection with the electric furnace body.

In one embodiment of the utility model, the mounting flange is integrally formed with the outer layer.

A second aspect of the utility model provides an electric fire comprising a fire body and a fire nozzle of the first aspect, the fire nozzle being mounted on the fire body.

Compared with the prior art, the electric furnace comprises the furnace mouth of the first aspect, so that the temperature rise of the outer layer is not obvious, the possibility of deformation of the outer layer is reduced, the service life of the whole furnace mouth is prolonged, the replacement times are reduced, and meanwhile, the production efficiency of the electric furnace is also improved.

Drawings

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

FIG. 1 is a schematic perspective view of a furnace mouth according to an embodiment of the present utility model;

FIG. 2 is a schematic perspective view of an outer layer used in a furnace mouth according to an embodiment of the present utility model;

FIG. 3 is a schematic perspective view of an inner layer used in a furnace mouth according to an embodiment of the present utility model;

fig. 4 is a schematic structural view of an electric furnace according to an embodiment of the present utility model.

Reference numerals:

100. a furnace mouth; 200. an outer layer; 210. a clamping groove; 220. a mounting flange; 221. a mounting hole; 300. an inner layer; 310. folding edges; 320. a clamping block; 400. an electric furnace; 410. an electric furnace main body.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions in the embodiments of the present utility model will be clearly and completely described below, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. 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 also within the scope of the utility model.

In the description of the present utility model, it should 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 the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

The terms "first," "second," and the like, 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, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, as well as, for example, fixedly coupled, detachably coupled, or integrally coupled, unless otherwise specifically indicated and defined. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Fig. 1 is a schematic perspective view of a furnace mouth according to an embodiment of the present utility model. Fig. 2 is a schematic perspective view of an outer layer used in a furnace mouth according to an embodiment of the present utility model. Fig. 3 is a schematic perspective view of an inner layer used in a furnace mouth according to an embodiment of the present utility model. Fig. 4 is a schematic structural view of an electric furnace according to an embodiment of the present utility model.

An embodiment of the first aspect of the present utility model provides a burner 100, as shown in fig. 1, 2 and 3, comprising an outer layer 200 and an inner layer 300, wherein the outer layer 200 is a structure mounted to an electric furnace body, and also a structure supporting the inner layer 300, and the inner layer 300 is a structure directly contacting with a high temperature molten fluid.

As shown in fig. 1 and 2, the outer layer 200 has a V-shaped cross section, and the tips of the V-shapes may be rounded to form the general structure of the furnace mouth 100.

The inner layer 300 is made of a high-temperature resistant heat insulating material, and the high-temperature resistant heat insulating material can mainly be ceramic fiber, and the ceramic fiber has high-temperature resistance, low heat conductivity coefficient and the like, so that the inner layer 300 can bear high temperature and realize heat insulation.

As shown in fig. 1 and 3, the inner layer 300 is also generally V-shaped to match the shape of the outer layer 200, facilitating the installation of the inner layer 300 and the outer layer 200.

The inner layer 300 is detachably connected to the inside of the outer layer 200, and when the furnace mouth 100 is used for a period of time, if the inner layer 300 is damaged, an operator can detach the inner layer 300 and then replace the inner layer 300 with a new one, so that the furnace mouth is convenient and practical.

The inner layer 300 entirely covers the inner surface of the outer layer 200 so that the fluid melted at high temperature directly contacts the inner layer 300 and does not contact the outer layer 200.

The outer layer 200 is V-shaped forming the general structure of the mouth 100. When the furnace is discharged, the high-temperature molten fluid is directly contacted with the inner layer 300 and cannot contact the outer layer 200, the inner layer 300 is made of high-temperature-resistant heat insulation materials, and not only can bear the high temperature of the fluid, but also can insulate heat, so that only a small part of the heat of the fluid can be transferred to the outer layer 200, the temperature of the outer layer 200 is not obviously increased, and the deformation is not easy to occur.

Compared with the prior art, the inner layer 300 of the furnace mouth 100 is directly contacted with high-temperature molten fluid, the outer layer 200 is not contacted with the fluid, the inner layer 300 can bear high temperature and realize heat insulation, so that the temperature of the outer layer 200 is not obviously increased, the possibility of deformation of the outer layer 200 is reduced, the service life of the whole furnace mouth 100 is prolonged, the replacement times are reduced, and meanwhile, the production efficiency of the electric furnace is also improved.

In some embodiments, as shown in fig. 1 and 3, the sidewalls of the inner layer 300 are higher than the sidewalls of the outer layer 200, enabling the inner layer 300 to entirely cover the inner surface of the outer layer 200. The top end of the side wall of the inner layer 300 is provided with a folded edge 310, and the folded edge 310 is abutted against the top surface of the side wall of the outer layer 200, so that the folded edge 310 is lapped on the side wall of the outer layer 200.

In some embodiments, the flange 310 is connected to the side wall of the inner layer 300 by bolts, so that the flange 310 can be detached, and when the inner layer 300 is installed, the inner layer 300 can be placed inside the outer layer 200, and then the flange 310 is installed on the side wall of the inner layer 300, so that the installation is facilitated.

In some embodiments, as shown in fig. 2 and 3, the top surface of the sidewall of the outer layer 200 is provided with a plurality of clamping grooves 210, and the clamping grooves 210 extend in the thickness direction of the sidewall of the outer layer 200. The bottom surface of hem 310 is equipped with a plurality of fixture blocks 320, and the quantity of fixture blocks 320 equals with draw-in groove 210, and a plurality of fixture blocks 320 one-to-one card is gone into in a plurality of draw-in grooves 210, realizes the joint of hem 310 and the lateral wall of outer 200.

Generally, the plurality of slots 210 are uniformly distributed, so that the stress between the folded edge 310 and the side wall of the outer layer 200 is more uniform and the structure is more reasonable.

In some embodiments, as shown in fig. 2 and 3, the cross section of the clamping groove 210 is trapezoidal, and of course, the clamping block 320 is consistent with the shape of the clamping groove 210. The trapezoidal upper end is the minor face, and the lower extreme is the long limit for fixture block 320 can only follow the length direction card of draw-in groove 210 (that is the thickness direction of the lateral wall of outer layer 200) and go into, fixture block 320 can not extract from the upper end cell mouth of draw-in groove 210, makes hem 310 and the lateral wall joint of outer layer 200 more firm, makes to connect more firm between outer layer 200 and the inlayer 300, and the structure is more stable.

In some embodiments, the outer layer 200 is provided with cooling water channels (not shown in the figure), and the cooling water channels are connected with the cooling water, so that the cooling of the outer layer 200 can be realized, the possibility of deformation of the outer layer 200 due to temperature rise is further reduced, and the possibility of damage to the outer layer 200 is reduced.

The cooling water channel is located in the outer layer 200, may be generally V-shaped, and extends in a serpentine connection along the length of the outer layer 200, thereby cooling the entire outer layer 200 and enhancing the cooling effect.

In some embodiments, as shown in fig. 2, the outer layer 200 is provided with a mounting flange 220, the mounting flange 220 being provided with mounting holes 221. In the installation, the installation of the entire furnace mouth 100 can be achieved by installing the installation flange 220 on the electric furnace body by bolts passing through the installation holes 221 of the installation flange 220.

In some embodiments, the mounting flange 220 is integrally formed with the outer layer 200 such that the mounting flange 220 is integral with the outer layer 200, both of which do not require field installation, improving the efficiency of field installation of the entire furnace mouth 100.

An embodiment of the second aspect of the present utility model provides an electric fire 400, as shown in figure 4, comprising an electric fire body 410 and a fire nozzle 100 of the first aspect, the fire nozzle 100 being mounted on the electric fire body 410.

Compared with the prior art, since the electric furnace 400 includes the burner tip 100 of the first aspect, the temperature rise of the outer layer 200 is not obvious, the possibility of deformation of the outer layer 200 is reduced, the life of the entire burner tip 100 is prolonged, the number of replacement times is reduced, and the production efficiency of the electric furnace 400 is improved.

Finally, it should be noted that the above embodiments are merely illustrative of the technical solution of the present utility model, and not limiting thereof; although the utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will appreciate 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 mouth, comprising:

an outer layer, wherein the cross section of the outer layer is V-shaped;

the inner layer is made of high-temperature-resistant heat-insulating materials, the shape of the inner layer is matched with that of the outer layer, the inner layer is detachably connected to the inner portion of the outer layer, and the inner layer completely covers the inner surface of the outer layer.

2. The burner of claim 1, wherein the side wall of the inner layer is higher than the side wall of the outer layer, and wherein a top end of the side wall of the inner layer is provided with a flange, and wherein the flange abuts against a top surface of the side wall of the outer layer.

3. The burner of claim 2, wherein the flange is bolted to the side wall of the inner layer.

4. A furnace mouth according to claim 3, wherein the top surface of the side wall of the outer layer is provided with a plurality of clamping grooves, the bottom surface of the folded edge is provided with a plurality of clamping blocks, the number of the clamping blocks is equal to that of the clamping grooves, and the clamping blocks are clamped into the clamping grooves in a one-to-one correspondence manner.

5. The furnace mouth according to claim 4, wherein the cross section of the clamping groove is trapezoidal.

6. The burner according to any one of claims 1 to 5, wherein the outer layer is provided with cooling water channels.

7. The burner of any one of claims 1 to 5, wherein the outer layer is provided with a mounting flange provided with a plurality of mounting holes, the mounting flange being for connection with an electric furnace body.

8. The furnace mouth according to claim 7, wherein the mounting flange is integrally formed with the outer layer.

9. An electric fire comprising an electric fire body and a fire nozzle as claimed in any one of claims 1 to 8, the fire nozzle being mounted on the electric fire body.