CN213113395U - Communicating device for smelting reduction furnace and front-mounted tapping furnace - Google Patents
Communicating device for smelting reduction furnace and front-mounted tapping furnace Download PDFInfo
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- CN213113395U CN213113395U CN202021721651.7U CN202021721651U CN213113395U CN 213113395 U CN213113395 U CN 213113395U CN 202021721651 U CN202021721651 U CN 202021721651U CN 213113395 U CN213113395 U CN 213113395U
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- 238000010079 rubber tapping Methods 0.000 title claims abstract description 60
- 230000009467 reduction Effects 0.000 title claims abstract description 55
- 238000003723 Smelting Methods 0.000 title claims abstract description 53
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 136
- 229910052742 iron Inorganic materials 0.000 claims abstract description 68
- 239000011449 brick Substances 0.000 claims description 17
- 238000011049 filling Methods 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 238000004891 communication Methods 0.000 abstract description 12
- 239000007788 liquid Substances 0.000 abstract description 9
- 230000000994 depressogenic effect Effects 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
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- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005245 sintering Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000004606 Fillers/Extenders Substances 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000013461 design Methods 0.000 description 2
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- 230000002349 favourable effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
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- 229910000831 Steel Inorganic materials 0.000 description 1
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- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 239000010431 corundum Substances 0.000 description 1
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Abstract
The application discloses a communicating device of a smelting reduction furnace and a front-mounted tapping furnace, and belongs to the technical field of smelting reduction. This intercommunication device of smelting reduction furnace and leading tapping furnace, including the stove bottom, circulation room and articulamentum, the circulation room includes a module at least, be equipped with on the bottom surface of each module to its inside sunken depressed part, the top surface of each depressed part and stove bottom forms the molten iron circulation passageway, the molten iron circulation passageway includes the water conservancy diversion portion and the portion that expands that communicate each other, the tap hole of water conservancy diversion portion and smelting reduction furnace is linked together, the top surface level of water conservancy diversion portion sets up, it is linked together with the tapping passageway of leading tapping furnace to expand the portion that flows, the top surface that expands the portion upwards slopes to set up along the molten iron circulation direction. The communication device of the smelting reduction furnace and the front tapping furnace can effectively avoid the influence of the sudden change of the liquid level of the molten iron in the front tapping furnace caused by the abnormal increase of the furnace pressure in the smelting reduction furnace by reducing the circulation aperture of the flow guide part; the flow expanding part can effectively prevent the molten iron from freezing in the molten iron flowing channel.
Description
Technical Field
The application relates to a communication device of a smelting reduction furnace and a front-mounted tapping furnace, belonging to the technical field of smelting reduction.
Background
In the HIsmelt reduction technology, a front-located tapping furnace is arranged outside a smelting reduction furnace as a special tapping device, the bottom of the front-located tapping furnace is communicated with the smelting reduction furnace, a tapping channel of the front-located tapping furnace and a tapping channel of the smelting reduction furnace form a U-shaped tubular structure channel, according to the siphon tapping principle, the furnace pressure in the smelting reduction furnace is controlled through a conical valve of a gas dust removal system, the height difference between the liquid level of iron slag in the smelting reduction furnace and the liquid level of molten iron in the front-located tapping furnace is utilized to control whether tapping is performed, and when the furnace pressure in the smelting reduction furnace is increased, the molten iron in the smelting reduction furnace passes through the U-shaped tubular structure channel and then overflows to a tapping channel through the top of the front-located tapping furnace, so that tapping is completed.
Leading tapping furnace is built by laying bricks or stones by resistant firebrick and is formed, including forehearth and interface channel two parts, current interface channel generally sets up rectangular column shape, at the in-process of tapping, when the unusual high pressure appears in the smelting reduction furnace, can lead to the molten iron to follow the speed increase that the smelting reduction furnace flows to leading tapping furnace, leads to the undulant increase of molten iron liquid level in the leading tapping furnace, can appear the molten iron even and outwards splash from leading tapping furnace, seriously influences the security that leading tapping furnace was tapped.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, the present application provides a communication device between a smelting reduction furnace and a front tapping furnace, wherein a molten iron flow channel of the communication device is configured as a flow guiding portion and a flow expanding portion, and a flow aperture of the flow guiding portion is reduced, so that a flow speed of molten iron from the smelting reduction furnace to the front tapping furnace can be effectively reduced, and an influence of a sudden change of a molten iron liquid level in the front tapping furnace caused by an abnormal increase of a furnace pressure in the smelting reduction furnace can be effectively avoided.
The application is realized by the following technical scheme:
a device for communicating a smelting reduction furnace with a front tapping furnace, comprising:
the top surface of the furnace bottom is of a planar structure;
the circulating chamber is arranged above the furnace bottom and at least comprises one module, a sunken part sunken towards the inside of the module is arranged on the bottom surface of each module, a molten iron circulating channel is formed by each sunken part and the top surface of the furnace bottom and comprises a flow guide part and a flow expansion part which are mutually communicated, the flow guide part is communicated with an iron outlet of the melting reduction furnace, the top surface of the flow guide part is horizontally arranged, the flow expansion part is communicated with an iron outlet channel of the front iron outlet furnace, and the top surface of the flow expansion part is upwards obliquely arranged along the molten iron circulating direction;
and the connecting layer is arranged above the circulating chamber and is used for being connected with the smelting reduction furnace and the front tapping furnace.
Preferably, the angle between the top surface of the flow expansion part and the horizontal plane is 20-60 degrees.
Preferably, the flow guide part is of a semi-cylindrical structure, the longitudinal section of the flow expansion part is two right-angle trapezoids, and the right-angle sides, the upper bottom and the lower bottom of the two right-angle trapezoids are overlapped.
Preferably, the diameter of the flow guide part is 100-600 mm.
Preferably, the flow-through chamber is a preform.
Preferably, the bottom of the circulating chamber is provided with a bulge, and the top surface of the furnace bottom is provided with a groove matched with the bulge.
Preferably, a threaded sleeve is provided at the top of the flow-through chamber.
Preferably, the circulation chamber is sequentially provided with a diversion module, a first extension module, a second extension module and a third extension module along the direction of molten iron circulation.
Preferably, the top of the flow guide module is arranged into a stepped structure; the top of the first extension module is of a plane structure; the top of the second extension section is of an arc-shaped structure, and the top of the third extension section is of an arc-shaped structure.
Preferably, the hearth is constructed of refractory bricks, the connecting layer is constructed of refractory bricks, and a filling layer is provided between the top of the flow cell and the connecting layer.
Preferably, the filling layer is a preform.
Benefits that can be produced by the present application include, but are not limited to:
1. according to the communication device of the smelting reduction furnace and the front tapping furnace, the molten iron flowing channel of the communication device is set to be the flow guiding part and the flow expanding part, the flowing speed of molten iron from the smelting reduction furnace to the front tapping furnace can be effectively reduced by reducing the flowing aperture of the flow guiding part, and the influence of sudden change of the liquid level of the molten iron in the front tapping furnace caused by abnormal increase of the furnace pressure in the smelting reduction furnace can be effectively avoided; through will expand the structure that the class portion sets gradually to expand the extension from the tapping passageway junction with water conservancy diversion portion to with leading tapping stove, be favorable to increasing the speed that the molten iron flows in molten iron circulation passageway, can effectively avoid the molten iron to freeze in molten iron circulation passageway.
2. The utility model provides a smelting reduction furnace and leading intercommunication device who goes out the iron stove, the circulation room is the prefab, can set the circulation room to the structure of compriseing a whole prefab or a plurality of prefabs, compare in original structure through building resistant firebrick by laying bricks or stones, the relatively poor problem of passageway stability of original refractory brick built by laying bricks or stones has effectively been solved, the convenience of intercommunication device overall stability and production operation has been showing and has been improved, the intensity of whole intercommunication device has been improved, thermal shock resistance and anti spalling performance, the phenomenon of molten iron infiltration in the gap of resistant firebrick has effectively been reduced, effectively improved the speed of building by laying bricks or stones, the time of building by laying bricks or stones has been saved, the manpower has been practiced thrift, convenient maintenance.
3. According to the communication device for the smelting reduction furnace and the front tapping furnace, the bottom of the circulation chamber is provided with the bulge, the top surface of the furnace bottom is provided with the groove matched with the bulge, when the circulation chamber is installed, the circulation chamber is favorably and accurately positioned on the furnace bottom, the circulation chamber is favorably and tightly connected with the furnace bottom, and molten iron is effectively prevented from permeating from a gap between the circulation chamber and the furnace bottom; the threaded sleeve is arranged at the top of the circulation chamber, so that the circulation chamber can be conveniently lifted and installed.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a schematic structural view of a communicating apparatus between a smelting reduction furnace and a front tapping furnace according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a flow guide module according to an embodiment of the present disclosure;
FIG. 3 is a left side view of the structure of FIG. 2;
FIG. 4 is a schematic cross-sectional view of A-A of FIG. 3;
fig. 5 is a schematic structural diagram of a first extension module according to an embodiment of the present disclosure;
FIG. 6 is a left side view of the structure of FIG. 5;
FIG. 7 is a schematic cross-sectional view of B-B in FIG. 6;
fig. 8 is a schematic structural diagram of a second extender module according to an embodiment of the present disclosure;
FIG. 9 is a left side view of the structure of FIG. 8;
FIG. 10 is a schematic cross-sectional view of C-C of FIG. 9;
fig. 11 is a schematic structural diagram of a third extender module according to an embodiment of the present disclosure;
FIG. 12 is a left side view of the structure of FIG. 11;
fig. 13 is a schematic cross-sectional view of D-D in fig. 12.
List of parts and reference numerals:
1. a front tapping furnace; 2. a smelting reduction furnace; 11. a tapping channel; 101. a furnace bottom; 102. a flow-through chamber; 103. a connecting layer; 104. a filling layer; 201. a molten iron circulation passage; 202. a flow guide part; 203. a flow expansion section; 301. a flow guide module; 302. a first extension module; 303; a second extension module; 304. a third extension module; 401. a protrusion; 402. a threaded bushing.
Detailed Description
In order to more clearly explain the overall concept of the present application, the following detailed description is given by way of example in conjunction with the accompanying drawings.
So that the manner in which the above recited objects, features and advantages of the present application can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to the embodiments thereof which are illustrated in the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.
In addition, in the description of the present application, it is to be understood that the terms "upper", "lower", "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 device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application.
Furthermore, the terms "first", "second" and "first" 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 defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Referring to fig. 1, the present embodiment provides a communication apparatus between a smelting reduction furnace and a front tapping furnace, comprising a hearth 101, a flow cell 102, and a connecting layer 103, wherein the hearth 101 is made of refractory bricks and is identical to the hearth of the front tapping furnace 1, and the top surface of the hearth 101 is of a planar structure; a flow chamber 102 is arranged above the furnace bottom, the flow chamber 102 at least comprises a module, a concave part which is concave towards the inside of each module is arranged on the bottom surface of each module, each concave part and the top surface of the furnace bottom 101 together form a molten iron flow channel 201, the molten iron flow channel 201 comprises a flow guide part 202 and a flow expansion part 203 which are mutually communicated, the flow guide part 202 is communicated with an iron outlet of the smelting reduction furnace 2, the top surface of the flow guide part 202 is horizontally arranged, the flow expansion part 203 is communicated with an iron outlet channel 11 of the front iron tapping furnace 1, and the top surface of the flow expansion part 203 is upwards and obliquely arranged along the molten iron flow direction; the connection layer 103 is provided above the flow chamber 102 and is connected to the smelting reduction furnace 2 and the forehearth 1.
Because the molten iron flowing channel of the existing smelting reduction furnace and the preposed tapping furnace is built by refractory bricks, the molten iron flowing channel is of a cuboid structure, when the furnace pressure in the smelting reduction furnace is suddenly and sharply increased, the molten iron liquid level in the preposed tapping furnace is suddenly changed, and the molten iron is splashed outwards seriously, so that tapping is unsafe; through will expand the structure that the class portion sets gradually to expand the extension from the tapping passageway junction with water conservancy diversion portion to with leading tapping stove, be favorable to increasing the speed that the molten iron flows in molten iron circulation passageway, can effectively avoid the molten iron to freeze in molten iron circulation passageway.
It is understood that when the flow-through chamber 102 is formed of a plurality of blocks, the top surfaces of the molten iron flow-through passages formed in the recesses of the respective blocks should be closely combined.
As an embodiment, in order to make the molten iron flowing channel 201 more adaptive to the pressure change in the smelting process of the smelting reduction furnace 2 and reduce the risk of cooling, solidifying and channel blocking of molten iron in the molten iron flowing channel 201, the included angle between the top surface of the flow expanding part 203 and the horizontal plane is set to be 20-60 °; in order to reduce the influence of sudden fluctuation of the molten iron liquid level in the preposed tapping furnace when the furnace pressure in the smelting reduction furnace is suddenly increased, the diversion part 202 is arranged to be of a semi-cylindrical structure, and preferably, the diameter of the diversion part 202 is 100-600 mm; the longitudinal section of the flow expanding part 203 is two right-angle trapezoids with overlapped right-angle sides, specifically, the right-angle sides (one waist), the upper bottom side and the lower bottom side of the two right-angle trapezoids are all overlapped, and the other waist of the two right-angle trapezoids is parallel to each other.
In order to achieve the shape of the molten iron flowing channel, the flowing chamber 102 is made of prefabricated parts, a bulge 401 is arranged at the bottom of the flowing chamber 102, a groove matched with the bulge 401 is arranged on the top surface of the furnace bottom 101, and a threaded sleeve 402 is arranged at the top of the flowing chamber 102. Compare in building the circulation room that firebrick formed, through adopting the prefab, can make construction convenience, practice thrift engineering time, practice thrift the labour, through set up threaded sleeve pipe at the top of circulation room, adopt the mounting means that whole hoist and mount was laid, can practice thrift installation time more than 60%, improved circulation structure's the efficiency of building by laying bricks or stones. In order to further improve the masonry efficiency, a filling layer 104 is arranged between the circulation chamber 102 and the connecting layer 103, and the filling layer 104 is also a prefabricated member and can be matched with the circulation chamber 102 for use, so that the whole connecting device is convenient to install and masonry.
As an embodiment, referring to fig. 2, 5, 8 and 11, a flow guide module 301, a first extension module 302, a second extension module 303 and a third extension module 304 are sequentially disposed in the flow chamber 102 along a flow direction of molten iron. The flow chamber can be designed into an integral type, and can also be assembled by a plurality of prefabricated modules, and the flow chamber can be determined according to the size of the furnace body or the length of the communication device or the specific furnace type. The prefabricated member used in the flow cell 102 has the advantages that when the molten iron flow channel of the flow cell is corroded and eroded seriously, the prefabricated member can be repaired by pouring corundum, which is beneficial to maintaining the integral shape of the flow cell, and the prefabricated member has good fire resistance after being sintered in advance.
Referring to fig. 2 to 4, the guide module 301 is disposed near the smelting reduction furnace, is formed as a prefabricated member, has a top portion composed of two top surfaces having a certain height difference therebetween, and is formed in a stepped structure, wherein the two top surfaces are flat surfaces for building refractory bricks thereon, so that the refractory bricks are tightly combined with the top surfaces of the guide module, and the two top surfaces are provided with a plurality of guide grooves for guiding the refractory bricks to pass through the guide moduleThere are 3-4
The threaded sleeve 402 is used for hoisting the flow guide module 301; the bottom surface of the flow guide module 301 is provided with a first concave part and a second concave part, the first concave part is semi-cylindrical in shape, the diameter of the first concave part is 100-600mm, the first concave part is communicated with an iron outlet of the smelting reduction furnace and is used for controlling the flow speed of molten iron in the smelting reduction furnace to a front iron outlet, and the top surface of the second concave part is arranged in an upward inclined manner along the molten iron flowing direction to form a flow expanding part with a gradually expanded opening, so that the molten iron can be prevented from being cooled and solidified, and the flow of the molten iron in a molten iron flowing channel is facilitated; the bottom of the diversion module 301 is provided with a bulge 401, and the bulge 401 is matched with a groove arranged on the furnace bottom, so that the diversion module 301 and the furnace bottom can be accurately positioned and tightly connected.
Referring to fig. 5 to 7, a first extension module 302 is connected to the flow guide module 301, the first extension module 302 is also a prefabricated member, the top surface of the first extension module 302 is a planar structure, a third recess is formed in the bottom surface of the first extension module 302, the third recess and the second recess are identical in shape, and the third recess and the second recess are closely combined to ensure that the top surface of each section of recess is inclined upward along the molten iron flowing direction, a bolt bushing 402 is arranged on the top of the first extension module 302, and a protrusion 401 is arranged on the bottom of the first extension module 302.
Referring to fig. 8 to 10, the second extension module 303 is connected to the first extension module 302, the shape of the top of the second extension module 303 is mainly considered to be adapted to the shape of the housing of the communication device, and is configured to be a circular arc structure, the top and the bottom may be designed to be an integral structure, or may be configured to be an upper portion and a lower portion, a fourth recess is provided on the bottom surface of the second extension module 303, the fourth recess is tightly connected to the third recess, a bolt sleeve 402 is provided on the top of the third extension module, and a protrusion 401 is provided on the bottom of the third extension module.
Referring to fig. 11 to 13, connected to the second extension 303 is a third extension module 304 having a circular arc-shaped top portion becauseThe outer side of the communication device is a steel shell, and the top of the third extension module 303 is tightly matched with the shell, and is arranged into a structure with the same shape as the shell, and the shell is designed into an arc shape; a fifth depressed part is arranged on the bottom surface of the third extending module 304, the fifth depressed part is tightly combined with the fourth depressed part, the fifth depressed part is communicated with a tapping channel of the front tapping furnace, and 3-4 extending modules are arranged on the top of the third extending module
The bolt bushing 402 is provided with a protrusion 401 at the bottom of the third extension module.
Each module of circulation room adopts the prefab, and the material of prefab is high aluminium matter material, and the composition and the nature of high aluminium matter material are as follows:
the integral processing of each module prefabricated member of the flow-through chamber comprises the following steps:
(1) design model
When the prefabricated part is manufactured, firstly, the design and manufacture of a mould are carried out on the part to be manufactured according to the shape;
(2) selecting raw materials
After the mold is manufactured, selecting raw materials of the prefabricated member according to the use environment requirement;
(3) raw material preparation
The raw materials are prepared in proportion to ensure the service performance of the manufactured prefabricated member;
(4) stirring and pouring
Uniformly stirring the prepared raw materials according to a certain proportion, and pouring the raw materials into a prepared mould through a pouring process;
(5) vibration forming
Placing the cast prefabricated member on a vibration platform to enable the raw materials to be uniformly combined, and ensuring the compactness of the prefabricated member;
(6) natural air drying
Naturally drying after vibration, and curing;
(7) drying at low temperature
Putting the solidified precast block into a low-temperature baking oven for baking and then demoulding;
(8) high temperature sintering
And (4) high-temperature sintering is carried out, and the moisture is dried, so that the mechanical strength and the using effect of the material are ensured.
The prefabricated parts in the flow chamber are required to be sintered at high temperature outside the furnace before assembly, so that the overall performance and the using effect of the prefabricated parts are ensured; because the position is hidden, the baking and sintering in the furnace are not facilitated. The service performance of the flow chamber is ensured through pre-baking and sintering; the erosion resistance of the high-temperature liquid in the flow chamber is improved, and the service life of the flow chamber is prolonged by more than 80 percent compared with the masonry of refractory bricks.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. A device for communicating a smelting reduction furnace with a front tapping furnace, comprising:
the top surface of the furnace bottom is of a planar structure;
the circulating chamber is arranged above the furnace bottom and at least comprises one module, a sunken part sunken towards the inside of the module is arranged on the bottom surface of each module, a molten iron circulating channel is formed by each sunken part and the top surface of the furnace bottom and comprises a flow guide part and a flow expansion part which are mutually communicated, the flow guide part is communicated with an iron outlet of the melting reduction furnace, the top surface of the flow guide part is horizontally arranged, the flow expansion part is communicated with an iron outlet channel of the front iron outlet furnace, and the top surface of the flow expansion part is upwards obliquely arranged along the molten iron circulating direction;
and the connecting layer is arranged above the circulating chamber and is used for being connected with the smelting reduction furnace and the front tapping furnace.
2. The communicating apparatus of a smelting reduction furnace and a forehearth according to claim 1, wherein the angle between the top surface of the diffuser and the horizontal plane is 20-60 °.
3. The communicating apparatus of a smelting reduction furnace and a front tapping furnace according to claim 1, wherein the flow guiding part has a semi-cylindrical structure, the longitudinal section of the flow expanding part has two right-angled trapezoids, and the right-angled sides, the upper bottom and the lower bottom of the two right-angled trapezoids coincide with each other.
4. The communicating apparatus of the smelting reduction furnace and the front tapping furnace as recited in claim 3, wherein the diameter of the flow guide portion is 100-600 mm.
5. The communicating apparatus of a smelting reduction furnace and a forehearth according to claim 1, wherein the flow-through chamber is a preform.
6. The communicating apparatus of a smelting reduction furnace and a front tapping furnace according to claim 5, wherein a protrusion is provided on a bottom of the flow chamber, and a groove to be fitted with the protrusion is provided on a top surface of the hearth.
7. The communicating apparatus of a smelting reduction furnace and a forehearth according to claim 5, wherein a threaded sleeve is provided at the top of the flow-through chamber.
8. The communicating apparatus of a smelting reduction furnace and a preliminary tapping furnace according to claim 5, wherein a flow guide module, a first extension module, a second extension module, and a third extension module are provided in this order in the direction of molten iron flow.
9. The communicating apparatus of a smelting reduction furnace and a front tapping furnace according to claim 8, wherein the top of the deflector module is provided in a stepped structure; the top of the first extension module is of a plane structure; the top of the second extension module is of an arc-shaped structure, and the top of the third extension module is of an arc-shaped structure.
10. The communicating apparatus between a smelting reduction furnace and a front tapping furnace according to claim 1, wherein the hearth is constructed of refractory bricks, the connecting layer is constructed of refractory bricks, and a filling layer is provided between the top of the flow-through chamber and the connecting layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021721651.7U CN213113395U (en) | 2020-08-17 | 2020-08-17 | Communicating device for smelting reduction furnace and front-mounted tapping furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021721651.7U CN213113395U (en) | 2020-08-17 | 2020-08-17 | Communicating device for smelting reduction furnace and front-mounted tapping furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213113395U true CN213113395U (en) | 2021-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021721651.7U Active CN213113395U (en) | 2020-08-17 | 2020-08-17 | Communicating device for smelting reduction furnace and front-mounted tapping furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213113395U (en) |
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- 2020-08-17 CN CN202021721651.7U patent/CN213113395U/en active Active
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