CN210718683U

CN210718683U - Cored electromagnetic submerged combustion smelting device

Info

Publication number: CN210718683U
Application number: CN201921641064.4U
Authority: CN
Inventors: 王书晓; 陈学刚; 冯双杰; 许良; 余跃; 曹珂菲
Original assignee: China ENFI Engineering Corp
Current assignee: China ENFI Engineering Corp
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2020-06-09
Anticipated expiration: 2029-09-27

Abstract

The utility model provides a cored electromagnetism submerged combustion smelting device, include: the furnace body is provided with a smelting cavity, the bottom of the furnace body is provided with an installation space, and the installation space is communicated with the smelting cavity; the spray gun structure is arranged on the furnace wall of the furnace body; the magnetic induction heater structure is installed in the installation space. The technical scheme of the utility model the smelting furnace energy waste more problem among the prior art has been solved effectively.

Description

Cored electromagnetic submerged combustion smelting device

Technical Field

The utility model relates to an electromagnetism submerged combustion smelting device's technical field particularly, relates to a cored electromagnetism submerged combustion smelting device.

Background

The submerged combustion molten pool smelting technology is successfully applied to non-ferrous metal smelting such as secondary lead, zinc leaching slag, high-lead slag reduction and the like, wherein the molten pool smelting is realized by injecting air, oxygen-enriched air, reducing agent or fuel into a molten pool through a spray gun arranged on the side wall of a furnace body, injecting gas jet into the molten pool and rapidly stirring the molten pool so as to accelerate the processes of heat transfer, mass transfer and chemical reaction in the molten pool.

The existing smelting furnace is heated at the upper part of molten metal, so the problem that the bottom of the smelting furnace is easy to freeze occurs. In order to solve the problem of freezing of the bottom of the smelting furnace, some smelting furnaces are provided with an auxiliary heating structure outside the furnace body of the bottom. The structure needs to transfer heat to the interior of the furnace body, and the auxiliary heating structure of the smelting furnace in the prior art wastes more energy.

SUMMERY OF THE UTILITY MODEL

The main object of the utility model is to provide a there is core formula electromagnetism submergence burning smelting device to solve the smelting furnace energy waste more problem among the prior art.

In order to realize the above purpose, the utility model provides a there is core formula electromagnetism submerged combustion smelting device, include: the furnace body is provided with a smelting cavity, the bottom of the furnace body is provided with an installation space, and the installation space is communicated with the smelting cavity; the spray gun structure is arranged on the furnace wall of the furnace body; the magnetic induction heater structure is installed in the installation space.

Furthermore, the side wall of the bottom of the furnace body is provided with a groove which is sunken towards the central axis far away from the furnace body, and the groove forms an installation space.

Further, the magnetic induction heater structure and the inner wall of the groove are provided with a gap to form a molten channel.

Further, the melting channel is communicated with the melting cavity.

Furthermore, the melting channel is provided with an inlet and an outlet, and the exit angle of the material from the outlet of the melting channel and the horizontal connecting line of the outlet of the melting channel and the central shaft of the furnace body form a first angle; and/or the entering angle of the materials from the inlet of the melting channel and the horizontal connecting line of the inlet of the melting channel and the central shaft of the furnace body form a second angle.

Further, when the exit angle of the material from the outlet of the melting groove and the horizontal connecting line of the outlet of the melting groove and the central shaft of the furnace body form a first angle, the first angle is larger than 0 degree and smaller than 90 degrees.

Further, when the material entering angle from the inlet of the melting channel and the horizontal connecting line of the inlet of the melting channel and the central shaft of the furnace body form a second angle, the second angle is larger than 0 degree and smaller than 90 degrees.

Furthermore, the furnace body sequentially comprises a metal layer, a slag layer and a gas phase region from bottom to top, the spray gun structure comprises a spray gun, the spray gun is arranged on the top wall of the furnace body, and an outlet of the spray gun is positioned on the slag layer; and/or the spray gun is arranged on the side wall of the furnace body, and the outlet of the spray gun is positioned on the slag layer.

Further, the magnetic induction heater structure includes the magnetic induction heater, and the magnetic induction heater includes magnetic conduction iron core and magnetic coil, and the magnetic coil winding is in the circumference outside of magnetic conduction iron core.

Further, the magnetic induction heater structure also includes an insulating layer located circumferentially outward of the magnetic induction heater.

Use the technical scheme of the utility model, have core formula electromagnetism submergence burning smelting device when using, the spray gun structure heats in to the furnace body. The magnetic induction heater is structurally installed in the installation space to heat the interior of the furnace body, and the installation space is communicated with the smelting cavity, so that the efficiency of heating substances in the furnace body is high. The technical scheme of the utility model the smelting furnace energy waste more problem among the prior art has been solved effectively.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural view of a first embodiment of a cored electromagnetic submerged combustion smelting device according to the present invention;

FIG. 2 shows a schematic cross-sectional view at A-A of the cored electromagnetic submerged combustion smelting apparatus of FIG. 1;

FIG. 3 is a schematic structural view of a second embodiment of the cored electromagnetic submerged combustion smelting device according to the present invention;

FIG. 4 shows a schematic cross-sectional view at B-B of the cored electromagnetic submerged combustion smelting apparatus of FIG. 3;

FIG. 5 shows a schematic structural view of a third embodiment of the cored electromagnetic submerged combustion smelting device according to the present invention; and

FIG. 6 shows a schematic cross-sectional view at C-C of the cored electromagnetic submerged combustion smelting apparatus of FIG. 5.

Wherein the figures include the following reference numerals:

10. a furnace body; 20. a spray gun structure; 30. a magnetic induction heater structure; 100. a smelting cavity; 101. a melting channel; 102. a metal layer; 103. a slag layer; 104. a gas phase zone; 200. and (5) installing space.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship 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 of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art, in the drawings, the thicknesses of layers and regions are exaggerated for clarity, and the same devices are denoted by the same reference numerals, and thus the description thereof will be omitted.

As shown in fig. 1 and 2, the first embodiment provides a cored electromagnetic submerged combustion smelting device, which comprises: a furnace body 10, a lance structure 20 and a magnetic induction heater structure 30. The furnace body 10 is provided with a smelting cavity 100, the bottom of the furnace body 10 is provided with an installation space 200, and the installation space 200 is communicated with the smelting cavity 100. The lance structure 20 is provided on the wall of the furnace body 10. The magnetic induction heater structure 30 is installed in the installation space.

By applying the technical scheme of the embodiment, when the cored electromagnetic submerged combustion smelting device is used, the spray gun structure heats the furnace body. The magnetic induction heater structure 30 is installed in the installation space to heat the interior of the furnace body, and the installation space is communicated with the smelting cavity, so that the efficiency of heating substances in the furnace body is high. The technical scheme of the utility model the smelting furnace energy waste more problem among the prior art has been solved effectively.

As shown in fig. 1 and 2, in the first embodiment, the bottom side wall of the furnace body 10 has a groove recessed away from the central axis of the furnace body 10, and the groove forms an installation space. The structure has lower processing cost and compact structure.

As shown in fig. 1 and 2, in the first embodiment, the magnetic induction heater structure 30 has a gap with the inner wall of the groove to form a molten channel 101. The arrangement of the melting channel enables the heating effect of the magnetic induction heater structure 30 to be better, namely, the magnetic induction heater structure 30 is not close to the inner wall of the furnace body 10, so that the energy of the magnetic induction heater structure 30 is more converted and transferred to the molten metal.

Specifically, the channel 101 communicates with the smelting chamber 100. Under the action of the magnetic induction heater structure 30, the molten metal enters the melting channel 101 from the melting cavity 100 and then enters the melting cavity 100 through the melting channel 101, so that the magnetic induction heater structure 30 also has the stirring effect on the molten metal. The molten metal is moved in the furnace body 10 by the arrangement of the channel 101, and the problem that the molten metal is frozen is further solved.

As shown in fig. 2, in the solution of the present embodiment, the molten channel 101 has an inlet and an outlet, the exit angle of the material from the outlet of the molten channel 101 is set at a first angle with the horizontal line connecting the outlet of the molten channel 101 and the central axis of the furnace body 10, and the entrance angle of the material from the inlet of the molten channel 101 is set at a second angle with the horizontal line connecting the inlet of the molten channel 101 and the central axis of the furnace body 10. The above structure makes the force of stirring the molten metal in the furnace body 10 larger. The exit angle of the material from the outlet of the molten channel 101 and the horizontal connecting line of the outlet of the molten channel 101 and the central axis of the furnace body 10 form a first angle, so that the exit angle of the molten metal does not coincide with the horizontal connecting line of the outlet of the molten channel 101 and the central axis of the furnace body 10, and the magnetic induction heater structure 30 has a large stirring force on the molten metal. Of course, only the exit angle of the material from the outlet of the molten channel 101 may be set at a first angle with the horizontal line connecting the outlet of the molten channel 101 and the central axis of the furnace body 10, or the entrance angle of the material from the inlet of the molten channel 101 may be set at a second angle with the horizontal line connecting the inlet of the molten channel 101 and the central axis of the furnace body 10.

As shown in fig. 2, in the technical solution of this embodiment, when the exit angle of the material from the outlet of the molten channel 101 and the horizontal connecting line of the outlet of the molten channel 101 and the central axis of the furnace body 10 form a first angle, the first angle is greater than 0 ° and smaller than 90 °. The above structure has a good effect of stirring the molten metal. In particular, the outlet of the channel 101 has a guide surface, in the solution of the present embodiment, the first angle is 30 °, such stirring effect is better.

As shown in fig. 2, in the technical solution of this embodiment, when the entry angle of the material from the inlet of the molten channel 101 and the horizontal line connecting the inlet of the molten channel 101 and the central axis of the furnace body 10 form a second angle, the second angle is greater than 0 ° and smaller than 90 °. The above structure has a good effect of stirring the molten metal. In particular, the outlet of the channel 101 has a guide surface, in the solution of the present embodiment, the second angle is 30 °, such stirring effect is better.

It should be noted that the number of the magnetic induction heater structures 30 is plural, and the plural magnetic induction heater structures 30 are disposed at intervals at the bottom of the furnace body 10, and the horizontal heights of the plural magnetic induction heater structures 30 may be the same or different according to actual circumstances.

As shown in fig. 1 and 2, in the technical solution of the first embodiment, the furnace body 10 sequentially includes a metal layer 102, a slag layer 103, and a gas phase zone 104 from bottom to top, the lance structure 20 includes a lance, the lance is installed on the slag layer 103 of the furnace body 10, and an outlet of the lance is located on the slag layer 103. The side wall of the furnace body 10 is provided with a mounting hole, the mounting hole is positioned on the slag layer, and the spray gun structure 20 is arranged at the mounting hole. Specifically, the lance arrangement 20 includes a plurality of lances having their axes at an angle of between 0 ° and 30 ° to the horizontal. The axis of the lance is inclined downwardly, preferably from 0 to 15. The spray gun is inserted through the side wall below the liquid level of the molten pool and is immersed in the molten pool, the spray gun can be of a single-channel structure, oxygen-enriched gas is sprayed into the furnace through the single-channel spray gun, and a single spray gun can also be of a multi-channel structure and simultaneously sprays the oxygen-enriched gas and fuel.

Further specifically, the side wall of the furnace body 10 is of a copper water jacket structure. Preferably, the side wall of the furnace body 10 is a copper water jacket structure, a water jacket lining is arranged in the copper water jacket structure, and the water jacket lining is made of refractory brick materials. The copper water jacket structure has low manufacturing cost, and the water jacket lining is made of refractory brick materials, so that the structure is firm and has good heat resistance.

In order to realize automatic control of the electromagnetic submerged combustion smelting device of the embodiment, the cored electromagnetic submerged combustion smelting device of the embodiment further comprises a control structure, the magnetic induction heater structure 30 is electrically connected with the control structure, the control structure comprises a control main body and a temperature sensor which are electrically connected, and the temperature sensor is arranged on the outer wall of the furnace body 10 so as to control the on-off of the magnetic induction heater structure 30 through the temperature measured by the temperature sensor. When the temperature is higher than the preset value, the phenomenon of freezing cannot occur in the furnace body 10, the magnetic induction heater structure 30 is closed, when the temperature is lower than the preset value, the phenomenon of freezing is easy to occur in the furnace body 10, and the magnetic induction heater structure 30 is opened.

As shown in fig. 2, in the solution of the first embodiment, the magnetic induction heater structure 30 includes a magnetic induction heater, and the magnetic induction heater includes a magnetically permeable iron core and a magnetic coil, and the magnetic coil is wound around the circumferentially outer side of the magnetically permeable iron core. The structure has good heating effect and compact structure.

As shown in fig. 2, in the solution of the first embodiment, the magnetic induction heater structure 30 further includes an insulating layer, and the insulating layer is located on the circumferential outer side of the magnetic induction heater. The above structure advantageously comprises a magnetic induction heater. The magnetic induction heater is sealed within the insulating layer.

As shown in FIGS. 3 and 4, the second embodiment is different from the first embodiment in that the lance is installed on the side wall of the gas phase zone 104 of the furnace body 10, and the outlet of the lance is located on the side wall of the slag layer 103. The location of the mounting holes in the slag layer 103 makes the lance structure 20 less prone to leakage when installed in the slag layer 103. The spray gun structure 20 comprises one or more spray guns, and the included angle between the axis of each spray gun and the horizontal plane is 30-60 degrees. Specifically, the axis of each lance is inclined downwardly. The axis of each lance is angled between 30 and 60 degrees from the horizontal, making the lance easier to install. More specifically, the length of the lance's injection port extending into the slag layer 103 is between 0.5 and 1 meter. Each spray gun is immersed in the molten pool, the spray gun can be of a single-channel structure, oxygen-enriched gas is sprayed into the furnace through the single-channel spray gun, and the single spray gun can also be of a multi-channel structure and simultaneously sprays the oxygen-enriched gas and fuel. The spray gun is a single-channel spray gun, and the spray gun sprays oxygen-enriched gas. The spray gun is a multi-channel spray gun, and the spray gun can spray oxygen-enriched gas and fuel at the same time.

As shown in fig. 5 and 6, the technical solution of the third embodiment is different from the first embodiment in that the mounting holes are located on the side wall of the slag layer of the furnace body 10 and the top wall of the furnace body 10. The spray gun is arranged on the side wall of the slag layer, the same as the first embodiment, and the spray gun arranged on the top wall is vertically arranged. The lance may be separately installed on the top wall of the furnace body 10.

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 example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A cored electromagnetic submerged combustion smelting device is characterized by comprising:

the smelting furnace comprises a furnace body (10), wherein the furnace body (10) is provided with a smelting cavity (100), the bottom of the furnace body (10) is provided with an installation space (200), and the installation space (200) is communicated with the smelting cavity (100);

a lance structure (20), the lance structure (20) being disposed on a wall of the furnace body (10);

a magnetic induction heater structure (30), the magnetic induction heater structure (30) being mounted in the mounting space.

2. The cored electromagnetic submerged combustion smelting device according to claim 1, wherein the bottom side wall of the furnace body (10) has a groove recessed toward a central axis away from the furnace body (10), the groove forming the installation space.

3. The cored electromagnetic immersion combustion smelting device according to claim 2, wherein the magnetic induction heater structure (30) has a clearance with an inner wall of the groove to form a channel (101).

4. A cored electromagnetic immersion combustion smelting unit as claimed in claim 3, wherein the channel (101) communicates with the smelting chamber (100).

5. A cored electromagnetic submerged combustion smelting plant according to claim 3, wherein the channel (101) has an inlet and an outlet, and the exit angle of the material from the outlet of the channel (101) is set at a first angle to a horizontal line connecting the outlet of the channel (101) and the central axis of the furnace body (10); and/or

The entrance angle of the materials from the inlet of the melting channel (101) and the horizontal connection line of the inlet of the melting channel (101) and the central shaft of the furnace body (10) form a second angle.

6. The cored electromagnetic submerged combustion smelting device according to claim 5, wherein when the exit angle of the material from the outlet of the molten channel (101) and the horizontal line connecting the outlet of the molten channel (101) and the central axis of the furnace body (10) form a first angle, the first angle is greater than 0 ° and smaller than 90 °.

7. The cored electromagnetic immersion combustion smelting device according to claim 5, wherein when the entry angle of the material from the inlet of the molten channel (101) and the horizontal line connecting the inlet of the molten channel (101) and the central axis of the furnace body (10) form a second angle, the second angle is greater than 0 ° and smaller than 90 °.

8. The cored electromagnetic submerged combustion smelting unit according to claim 5, wherein the furnace body (10) comprises a metal layer (102), a slag layer (103) and a gas phase zone (104) from bottom to top in sequence, the lance structure (20) comprises a lance,

the spray gun is arranged on the top wall of the furnace body (10), and the outlet of the spray gun is positioned on the slag layer (103); and/or

The spray gun is arranged on the side wall of the furnace body (10), and the outlet of the spray gun is positioned on the slag layer (103).

9. The cored electromagnetic immersion combustion smelting apparatus according to any one of claims 1 to 8, wherein the magnetic induction heater structure (30) comprises a magnetic induction heater including a magnetically permeable iron core and a magnetic coil wound circumferentially outside the magnetically permeable iron core.

10. The cored electromagnetic immersion combustion smelting device of claim 9, wherein the magnetic induction heater structure (30) further includes an insulating layer located circumferentially outward of the magnetic induction heater.