CN211848026U - Blast furnace tapping main channel capable of comprehensively monitoring temperature - Google Patents
Blast furnace tapping main channel capable of comprehensively monitoring temperature Download PDFInfo
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- CN211848026U CN211848026U CN202020207155.3U CN202020207155U CN211848026U CN 211848026 U CN211848026 U CN 211848026U CN 202020207155 U CN202020207155 U CN 202020207155U CN 211848026 U CN211848026 U CN 211848026U
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Abstract
The utility model belongs to the field of metallurgical iron-making equipment, and relates to a blast furnace tapping main channel with comprehensive temperature monitoring function, which comprises a steel shell, a bottom precast block arranged in the steel shell, bearing precast blocks arranged on the upper parts of both sides of the bottom precast block and a lateral precast block arranged on one side of the upper part of the bearing precast block, which is far away from the bottom precast block; heat conducting fins for conducting heat are arranged on one sides, facing the steel shell, of the bottom prefabricated block, the supporting prefabricated block and the side prefabricated block; the thermocouple is arranged through the steel shell, one end of the thermocouple is arranged outside the steel shell, and the other end of the thermocouple is arranged on the heat conducting sheet; the arrangement position of the thermocouple is matched with that of the heat-conducting strip. The utility model discloses both realized just easy nature and the temperature detection reliability that the thermocouple was changed, realized the real-time monitorable nature of main ditch refractory material temperature again, can be through the remaining thickness of numerical simulation back-push main ditch working layer castable, ensure the safe handling of main ditch.
Description
Technical Field
The utility model belongs to metallurgical ironmaking equipment field relates to a blast furnace tapping main trough of temperature comprehensive monitoring.
Background
In blast furnace iron making, a main channel is an important facility in front of a blast furnace, and the main channel has the function of realizing the separation of liquid iron and slag. After the high-temperature molten iron and the slag flow into the main runner, an impact area is formed around an iron falling point, and the liquid slag iron flows in the main runner, so that abrasion and erosion can be brought to the refractory material of the working layer of the main runner, and the refractory material of the working layer is damaged at a high speed. When the thickness of the refractory material of the working layer is reduced to the extent that the refractory material cannot bear the scouring and erosion of the high-temperature liquid iron slag, the iron leakage condition can occur, and the consequences are very serious.
In the traditional operation, the main ditch uses the earlier stage of iron passing, and whether the ditch is peeled and cracked along the slag line part is detected by mainly utilizing the time point of surging and descending of the liquid level of the slag line before and after the blockage is opened every day; in the middle and later stages of the main channel using the open iron, the residual thickness of the slag line refractory material at the liquid level is measured by a refractory material telescopic caliper after the opening is blocked every day, and when the residual refractory material thickness is close to 200mm, residual iron point placing inspection spray repair operation is arranged; when the thickness of the residual refractory material is less than 200mm, arranging residual iron hot repair operation. The detection method for the main ditch basically stays in visual inspection and exploration by using a telescopic caliper, molten iron cannot be completely placed for careful observation, certain defects exist, and dangerous conditions such as cracking, stripping, holes and the like of refractory materials cannot be found sometimes.
In conventional designs, the main trench thermocouples are buried between the main trench permanent layer and the brick lining. The arrangement mode of the thermocouple determines that the thermocouple is not replaceable and cannot be densely distributed according to the temperature monitoring requirement.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a blast furnace tapping main trough of temperature comprehensive monitoring can detect the cold surface temperature of prefabricated section in the main trough to through numerical simulation back-push out the remaining thickness of main trough working layer castable, in order to ensure the safe handling of main trough.
In order to achieve the above purpose, the utility model provides a following technical scheme:
a blast furnace tapping main channel with comprehensive temperature monitoring function comprises a steel shell, a bottom precast block arranged in the steel shell, supporting precast blocks arranged at the upper parts of two sides of the bottom precast block and a lateral precast block arranged at one side, far away from the bottom precast block, of the upper part of the supporting precast block; heat conducting fins for conducting heat are arranged on one sides, facing the steel shell, of the bottom prefabricated block, the supporting prefabricated block and the side prefabricated block; the thermocouple is arranged through the steel shell, one end of the thermocouple is arranged outside the steel shell, and the other end of the thermocouple is arranged on the heat conducting sheet; the arrangement position of the thermocouple is matched with that of the heat-conducting strip.
Optionally, a flexible member for absorbing deformation of the steel shell or expansion and contraction of the refractory material is arranged between the bottom precast block, the supporting precast block, the lateral precast block and the steel shell.
Optionally, the flexible member is a fiber mat.
Optionally, a boss and a groove which are matched with each other are arranged at the joint of the bottom precast block and the bearing precast block; the junction of the bearing precast block and the lateral precast block is provided with a boss and a groove which are matched with each other.
Optionally, the heat conducting strip is a copper sheet.
Optionally, a sleeve for mounting the thermocouple is arranged on the steel shell; the arrangement position of the sleeve is matched with that of the heat-conducting fins.
Optionally, a fastener for fixing the thermocouple is arranged on the sleeve.
Optionally, the casting material for the working layer is arranged on one side, away from the steel shell, of the bottom precast block, the supporting precast block and the lateral precast block.
Optionally, the working layer casting material is manufactured by a formwork supporting, casting or baking method.
Optionally, a reinforcing rib plate is arranged outside the steel shell and used for meeting the bearing requirements of the refractory material and the molten iron in the steel shell.
Optionally, the thermocouple is a compression spring thermocouple.
The beneficial effects of the utility model reside in that:
the utility model relates to a blast furnace tapping main ditch of comprehensive monitoring of temperature, through pressure spring thermocouple and arrange the copper sheet on the cold face of bottom prefabricated section, bearing prefabricated section, lateral part prefabricated section, both realized just easy nature and the temperature detection reliability that the thermocouple was changed, realized the real-time monitorable nature of main ditch refractory material temperature again, can reversely deduce the residual thickness of main ditch working layer pouring material through numerical simulation to ensure the safe handling of main ditch.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and/or combinations particularly pointed out in the appended claims.
Drawings
For the purposes of promoting a better understanding of the objects, features and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a layout diagram of the overall structure of the present invention;
FIG. 2 is a partial enlarged view of the present invention;
fig. 3 is a diagram of the thermocouple arrangement outside the steel shell of the present invention.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in any way limiting the scope of the invention; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "back", etc., indicating directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limiting the present invention, and those skilled in the art can understand the specific meanings of the terms according to specific situations.
Referring to fig. 1-3, the reference numbers in the figures refer to the following elements: the device comprises a working layer casting material 1, a lateral prefabricated block 2, a bearing prefabricated block 3, a bottom prefabricated block 4, a fiber felt 5, a steel shell 6, a thermocouple 7, a copper sheet 21 and a sleeve 61.
A blast furnace tapping main channel with comprehensive temperature monitoring function comprises a steel shell 6, a bottom precast block 4 arranged in the steel shell 6, supporting precast blocks 3 arranged at the upper parts of two sides of the bottom precast block 4 and lateral precast blocks 2 arranged at the upper parts of the supporting precast blocks 3 and far away from one side of the bottom precast block 4; heat conducting fins for conducting heat are arranged on one sides, facing the steel shell 6, of the bottom precast block 4, the bearing precast block 3 and the lateral precast block 2; the thermocouple device also comprises a thermocouple 7 which penetrates through the steel shell 6, wherein one end of the thermocouple 7 is arranged outside the steel shell 6, and the other end of the thermocouple 7 is arranged on the heat conducting sheet; the arrangement position of the thermocouple 7 is matched with that of the heat-conducting strip.
Optionally, a flexible member for absorbing deformation of the steel shell 6 or expansion and contraction of the refractory material is arranged between the bottom precast block 4, the supporting precast block 3, the lateral precast block 2 and the steel shell 6; the flexible part is a fiber felt 5; a boss and a groove which are matched with each other are arranged at the joint of the bottom precast block 4 and the bearing precast block 3; a boss and a groove which are matched with each other are arranged at the joint of the bearing precast block 3 and the lateral precast block 2; the heat conducting sheet is a copper sheet 21; a sleeve 61 for mounting the thermocouple 7 is arranged on the steel shell 6; the arrangement position of the sleeve 61 is matched with that of the heat-conducting fins; a fastening piece for fixing the thermocouple 7 is arranged on the sleeve 61; the casting material is characterized by also comprising a working layer casting material 1 arranged on one side of the bottom precast block 4, the supporting precast block 3 and the lateral precast block 2 far away from the steel shell 6; the working layer castable 1 is manufactured by adopting a formwork supporting, pouring or baking mode; a reinforcing rib plate is arranged outside the steel shell 6 and used for meeting the bearing requirements of refractory materials and molten iron in the steel shell 6; the thermocouple 7 is a compression spring type thermocouple.
The utility model discloses a blast furnace tapping main ditch of the comprehensive monitoring of temperature is constituteed to working layer castables 1, lateral part prefabricated section 2, bearing prefabricated section 3, bottom prefabricated section 4, fibrofelt 5, outside box hat 6 and thermocouple 7. The lateral precast block 2, the bearing precast block 3 and the bottom precast block 4 are all large precast blocks, so that the integral installation and repair are convenient; the lap joints of the lateral precast block 2 and the bearing precast block 3 and the bottom precast block 4 are provided with mutually meshed bosses and grooves, so that the lap joint tightness can be met, and the lap joint stability can be ensured; the lateral precast blocks 2 cover most of the side wall of the main ditch, and no transverse through seam exists in the area section of the slag line which is easy to corrode the main ditch, so that the risk of iron leakage of the main ditch is reduced; the cold surfaces of the lateral precast block 2, the bearing precast block 3 and the bottom precast block 4 are provided with copper sheets 21, the arrangement of the copper sheets 21 on the precast blocks is matched with the arrangement of the thermocouples 7 outside the main channel, and the arrangement of the thermocouples 7 outside the external steel shell 6 needs to meet the requirement of numerical simulation of the thickness of the castable 1 of the working layer of the main channel. The copper sheet 21 is closely attached to the cold surfaces of the lateral precast block 2, the supporting precast block 3 and the bottom precast block 4, and is integrated with the three precast blocks (the lateral precast block 2, the supporting precast block 3 and the bottom precast block 4), and the copper sheet 21 has excellent heat conductivity and can accurately reflect the temperature of the cold surface; the fiber felt 5 is arranged among the lateral precast block 2, the bearing precast block 3, the bottom precast block 4 and the external steel shell 6, has compressibility and can absorb expansion and contraction of refractory materials in the main ditch and deformation of the steel shell 6 to a certain degree; the thermocouple 7 is a compression spring type thermocouple, and the end part of the thermocouple 7 is tightly attached to the copper sheet 21 through a compression spring by the thermocouple 7 so as to improve the reliability and accuracy of temperature measurement; the thermocouple 7 measures the temperature and remotely transmits the central control room in real time to obtain the temperature field distribution of the cold surfaces of the three precast blocks of the main ditch, and the residual thickness of the casting material 1 of the working layer is reversely pushed out through numerical simulation so as to ensure the safe use of the main ditch.
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the scope of the claims of the present invention.
Claims (10)
1. A blast furnace tapping main channel with comprehensive temperature monitoring function is characterized by comprising a steel shell, a bottom precast block arranged in the steel shell, supporting precast blocks arranged at the upper parts of two sides of the bottom precast block and lateral precast blocks arranged at the upper parts of the supporting precast blocks and far away from one side of the bottom precast block; heat conducting fins for conducting heat are arranged on one sides, facing the steel shell, of the bottom prefabricated block, the supporting prefabricated block and the side prefabricated block; the thermocouple is arranged through the steel shell, one end of the thermocouple is arranged outside the steel shell, and the other end of the thermocouple is arranged on the heat conducting sheet; the arrangement position of the thermocouple is matched with that of the heat-conducting strip.
2. The blast furnace tapping runner with comprehensive temperature monitoring as claimed in claim 1, wherein a flexible member for absorbing deformation of the steel shell or expansion and contraction of the refractory material is arranged between the bottom precast block, the supporting precast block, the side precast block and the steel shell.
3. The blast furnace tapping runner with comprehensive temperature monitoring as claimed in claim 2, wherein said flexible member is a fiber felt.
4. The blast furnace tapping main runner with comprehensive temperature monitoring as claimed in claim 1, wherein a boss and a groove which are matched with each other are arranged at the joint of the bottom precast block and the supporting precast block; the junction of the bearing precast block and the lateral precast block is provided with a boss and a groove which are matched with each other.
5. The blast furnace tapping main channel for comprehensively monitoring temperature as claimed in claim 1, wherein the heat conducting strip is a copper strip.
6. The blast furnace tapping main channel for comprehensively monitoring the temperature as claimed in claim 1, wherein a sleeve for mounting the thermocouple is arranged on the steel shell; the arrangement position of the sleeve is matched with that of the heat-conducting fins.
7. The blast furnace tapping runner with comprehensive temperature monitoring as claimed in claim 6, wherein said sleeve is provided with a fastener for fixing a thermocouple.
8. The blast furnace tapping main runner with comprehensive temperature monitoring as claimed in claim 1, further comprising a working layer castable disposed on one side of the bottom precast block, the supporting precast block and the side precast block away from the steel shell.
9. The blast furnace tapping main channel with comprehensive temperature monitoring as claimed in claim 8, wherein the working layer casting material is manufactured by means of formwork, casting or baking.
10. The blast furnace tapping main runner with comprehensive temperature monitoring as claimed in claim 1, wherein a reinforcing rib plate is arranged outside the steel shell and is used for meeting the bearing requirements of refractory materials and molten iron in the steel shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020207155.3U CN211848026U (en) | 2020-02-25 | 2020-02-25 | Blast furnace tapping main channel capable of comprehensively monitoring temperature |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020207155.3U CN211848026U (en) | 2020-02-25 | 2020-02-25 | Blast furnace tapping main channel capable of comprehensively monitoring temperature |
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| CN211848026U true CN211848026U (en) | 2020-11-03 |
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| CN202020207155.3U Active CN211848026U (en) | 2020-02-25 | 2020-02-25 | Blast furnace tapping main channel capable of comprehensively monitoring temperature |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111187868A (en) * | 2020-02-25 | 2020-05-22 | 中冶赛迪工程技术股份有限公司 | Blast furnace tapping main channel capable of comprehensively monitoring temperature |
| CN114934144A (en) * | 2022-06-07 | 2022-08-23 | 马鞍山钢铁股份有限公司 | Intelligent control method for baking main channel of blast furnace |
-
2020
- 2020-02-25 CN CN202020207155.3U patent/CN211848026U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111187868A (en) * | 2020-02-25 | 2020-05-22 | 中冶赛迪工程技术股份有限公司 | Blast furnace tapping main channel capable of comprehensively monitoring temperature |
| CN114934144A (en) * | 2022-06-07 | 2022-08-23 | 马鞍山钢铁股份有限公司 | Intelligent control method for baking main channel of blast furnace |
| CN114934144B (en) * | 2022-06-07 | 2023-07-07 | 马鞍山钢铁股份有限公司 | Intelligent control method for baking main channel of blast furnace |
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