Intelligent main channel permanent layer prefabricated member with temperature measuring assembly
By using intelligent permanent layer prefabricated components with temperature measuring elements in the main blast furnace trench, the problem of refractory oxidation caused by loose brick joints was solved, enabling real-time monitoring and life extension of refractory materials, and providing a precise maintenance solution.
Patent Information
- Application Number
- CN202423233295.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2034-12-26
AI Technical Summary
In traditional main trench permanent layers, the refractory material oxidizes due to loose brick joints and mud shedding during blast furnace ironmaking, affecting service life, and existing detection methods cannot detect the problem in time.
The system employs intelligent prefabricated permanent layer components for the main trench, including spring-loaded thermocouples and copper sheets. Real-time detection of the residual thickness of the refractory material is achieved through temperature monitoring. Combined with large prefabricated components and insulation layers, it avoids bricklaying misalignment and refractory material oxidation.
It enables real-time temperature monitoring of refractory materials, accurately determines the condition of the working layer, extends the service life of the main trench, and provides precise maintenance plans to improve safety.
Smart Images
Figure CN223780288U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of blast furnace ironmaking, and particularly relates to an intelligent main channel permanent layer prefabricated part with a temperature measuring assembly. BACKGROUND
[0002] The conventional main channel working layer of the cast house is cast using refractory materials, and the permanent layer between the working layer and the steel shell is generally formed by refractory bricks, and a layer of heat insulation bricks is tightly built against the hot surface of the steel shell to reduce the temperature of the steel shell. Due to vibration, cold-hot thermal shock cycle, and working layer disintegration impact during the use of the main channel of molten iron, the permanent layer lining inevitably has phenomena such as displacement, loosening, and brick joint mortar falling off, which causes cracks and falling off of the working layer, so that air cannot be prevented from penetrating from the back of the working layer, and thus the refractory material is oxidized, the effective thickness of the working layer is reduced, and the service life of the main channel refractory material is affected. The permanent layer of the main channel built by traditional small refractory bricks and heat insulation bricks has been difficult to meet the use requirements of modern large and super large blast furnaces, so it is necessary to develop a new type of intelligent main channel permanent layer.
[0003] The residual thickness of the working layer is an important indicator for judging the service life of the main channel, and the current detection method for the residual thickness of the working layer of the main channel mainly includes visual inspection and the use of a telescopic caliper to probe, which has certain defects and cannot timely discover problems and take corresponding measures. Therefore, it is necessary to provide an intelligent main channel permanent layer prefabricated part with a temperature measuring assembly, which can monitor the residual thickness of the refractory material of the working layer through temperature alarm, realize prior management, improve the safety of the main channel, and ensure the safe production of the blast furnace. UTILITY MODEL CONTENTS
[0004] The utility model solves the technical problem: provide a kind of intelligent main channel permanent layer prefabricated part with temperature measuring assembly, use large prefabricated part, heat insulation layer is formed, can effectively avoid the dislocation deformation of bricklaying and the oxidation phenomenon of refractory material caused by the falling off of brick joint mortar.
[0005] To solve the above technical problems, the utility model adopts the following technical scheme:
[0006] An intelligent main channel permanent layer prefabricated part with a temperature measuring assembly, comprising a steel shell, a working cast layer, a temperature measuring assembly disposed through the steel shell, a bottom permanent cast layer disposed in the steel shell, a first prefabricated part, a second prefabricated part and a heat insulation layer, the temperature measuring assembly comprises a compression spring thermocouple, a copper sheet and a protective sleeve disposed outside the compression spring thermocouple.
[0007] As a preferred, the heat insulation layer is disposed between the first prefabricated part, the second prefabricated part, the bottom permanent cast layer and the steel shell.
[0008] As preferred, the second precast member is arranged on the upper part of both sides of the bottom permanent cast layer, and the first precast member is arranged on the upper part of the second precast member away from the bottom permanent cast layer.
[0009] As preferred, the first precast member and the second precast member, and the second precast member and the bottom permanent cast layer are provided with the mutually engaged boss and groove at the joint.
[0010] As preferred, the copper sheet is arranged on the side of the first precast member facing the steel shell.
[0011] As preferred, the reinforcing rib plate is further arranged outside the steel shell.
[0012] As preferred, one end of the compression spring type thermocouple is arranged outside the steel shell, and the other end is arranged on the copper sheet.
[0013] As preferred, the number of the copper sheets is at least 4.
[0014] As preferred, the arrangement position of the compression spring type thermocouple matches the arrangement position of the copper sheet.
[0015] As preferred, the working cast layer is arranged on the side of the first precast member, the second precast member and the bottom permanent cast layer away from the steel shell.
[0016] Beneficial effects: Compared with the prior art, the utility model has the following advantages:
[0017] 1) The utility model discloses a compression spring type thermocouple and a copper sheet integrated with the first precast member, which not only realizes the convenience of thermocouple replacement and the reliability of temperature detection, but also realizes the real-time monitorability of the main groove refractory temperature, can reversely deduce the residual thickness of the main groove working layer cast by numerical simulation, and ensures the safe use of the main groove.
[0018] 2) The utility model discloses a compression spring type thermocouple and a copper sheet integrated with the first precast member, which not only realizes the convenience of thermocouple replacement and the reliability of temperature detection, but also realizes the real-time monitorability of the main groove refractory temperature, can reversely deduce the residual thickness of the main groove working layer cast by numerical simulation, and ensures the safe use of the main groove.
[0019] 3) The first precast member of the utility model is large in size and one-to-one corresponding with the added thermocouple, which is convenient for monitoring the working state of the main groove, can intuitively understand the working state of the blast furnace main groove, proposes more accurate maintenance and overhaul plan, and effectively prolongs the service life of the main groove. BRIEF DESCRIPTION OF DRAWINGS
[0020] Fig. 1 It is the whole structure schematic view of the utility model;
[0021] Fig. 2 It is the local enlarged view of the utility model;
[0022] Fig. 3 is a left view of the utility model;
[0023] Wherein: 1, working castable layer; 2, first prefabricated part; 3, second prefabricated part; 4, bottom permanent castable layer; 5, heat insulation layer; 6, steel shell; 7, copper sheet; 8, compression spring thermocouple; 9, protective sleeve; 10, reinforcing rib plate. DETAILED DESCRIPTION
[0024] The utility model is further illustrated in combination with specific embodiments, and the embodiments are implemented under the premise of the technical scheme of the utility model, and it should be understood that the embodiments are only used for illustrating the utility model and not for limiting the scope of the utility model.
[0025] As Figs. 1-3 shown, the utility model discloses a intelligent main ditch permanent layer prefabricated part with temperature measuring assembly, including working castable layer 1, first prefabricated part 2, second prefabricated part 3, bottom permanent castable layer 4, heat insulation layer 5, steel shell 6, copper sheet 7, compression spring thermocouple 8, protective sleeve 9, reinforcing rib plate 10.
[0026] Steel shell 6 inside is provided with working castable layer 1, first prefabricated part 2, second prefabricated part 3, bottom permanent castable layer 4, heat insulation layer 5. Heat insulation layer 5 is arranged between first prefabricated part 2, second prefabricated part 3, bottom permanent castable layer 4 and steel shell 6. Second prefabricated part 3 is arranged on the upper portion of both sides of bottom permanent castable layer 4. First prefabricated part 2 is arranged on the upper portion of second prefabricated part 3 and away from bottom permanent castable layer 4. First prefabricated part 2 and second prefabricated part 3, second prefabricated part 3 and bottom permanent castable layer 4 are provided with the boss and the recess that mutually engage at the lap joint, and the three not only satisfy the airtightness of lap joint, but also satisfy the stability of lap joint. Working castable layer 1 is arranged on the side of first prefabricated part 2, second prefabricated part 3, bottom permanent castable layer 4 and away from steel shell 6, and working layer castable layer 1 is made of refractory material pouring, baking.
[0027] Copper sheet 7 is arranged on the side of first prefabricated part 2 and towards steel shell 6. Copper sheet 7 is closely attached to the cold face of first prefabricated part 2, and is integrated with first prefabricated part 2.
[0028] Compression spring thermocouple 8 penetrates steel shell 6, and one end of compression spring thermocouple 8 is arranged outside steel shell 6, and the other end is arranged on copper sheet 7; the setting position of compression spring thermocouple 8 matches the setting position of copper sheet 7. The outside of compression spring thermocouple 8 is provided with protective sleeve 9, and protective sleeve 9 extends from heat insulation layer 5 to the outside of steel shell 6. The number of copper sheet 7 is at least 4.
[0029] The reinforcing plate 10 is arranged outside the steel shell 6, is made of profile steel, and meets the load bearing requirements of the refractory material and molten iron in the steel shell 6.
[0030] In use, the reinforcing plate 10 and the steel shell 6 are installed and fixed, the heat insulation layer 5 is laid on the inner side of the steel shell 6, the first prefabricated part 2, the second prefabricated part 3 and the bottom permanent castable layer 4 are overlapped on the heat insulation layer 5, the first prefabricated part 2 covers most of the side wall of the main groove, a plurality of copper sheets 7 are arranged on the cold surface of the first prefabricated part 2 and are integrated with the first prefabricated part 2 to accurately reflect the temperature of the cold surface, the compression spring type thermocouples 8 are inserted into the steel shell 6 from the outer side wall to the inner side wall at equal intervals along the length direction of the main groove, the compression spring type thermocouples 8 penetrate the heat insulation layer 5 and are tightly attached to the copper sheets 7, and finally, a mold of a proper size is hung above the bottom permanent castable layer 4, the first prefabricated part 2 and the second prefabricated part 3, the refractory material is poured between the permanent layer, the prefabricated layer and the mold, the mold is removed after the refractory material is dried, the refractory material is baked and the working castable layer 1 is formed.
[0031] The compression spring type thermocouples 8 measure the temperature and transmit the temperature to the central control room in real time, the operator can better judge the working condition of the working layer of the corresponding area according to the measured temperature data, propose a more accurate maintenance and overhaul scheme, prolong the maintenance cycle and improve the service life of the main groove.
[0032] The above only describes preferred embodiments of the utility model, and it should be noted that, for ordinary skilled persons in the technical field, some improvements and refinements can be made without departing from the principles of the utility model, and these improvements and refinements should also be regarded as the protection scope of the utility model.
Claims
1. A smart main trench permanent layer preform with a temperature measuring assembly, characterized in that, The application relates to a steel shell (6), a working cast layer (1), a temperature measuring assembly arranged through the steel shell (6), a bottom permanent cast layer (4) arranged in the steel shell (6), a first prefabricated part (2), a second prefabricated part (3) and a heat insulation layer (5), wherein the temperature measuring assembly comprises a compression spring type thermocouple (8), a copper sheet (7) and a protective sleeve (9) arranged outside the compression spring type thermocouple (8); the first prefabricated part (2) and the second prefabricated part (3) and the second prefabricated part (3) and the bottom permanent cast layer (4) are provided with a convex platform and a groove which are mutually engaged at the lap joint.
2. The smart master trench permanent layer preform with temperature measurement assembly of claim 1, wherein, The heat insulation layer (5) is arranged between the first prefabricated part (2), the second prefabricated part (3), the bottom permanent cast layer (4) and the steel shell (6).
3. The smart master trench permanent layer preform with temperature measurement assembly of claim 1, wherein, The second prefabricated part (3) is arranged on the upper part of two sides of the bottom permanent cast layer (4), and the first prefabricated part (2) is arranged on the upper part of the second prefabricated part (3) and is away from one side of the bottom permanent cast layer (4).
4. The smart main channel permanent layer preform with temperature measurement assembly of claim 1, wherein, The copper sheet (7) is arranged on one side of the first prefabricated part (2) which faces the steel shell (6).
5. The smart master trench permanent layer preform with temperature measurement assembly of claim 1, wherein, The application further comprises a reinforcing rib plate (10) arranged outside the steel shell (6).
6. The smart master trench permanent layer preform with temperature measurement assembly of claim 1, wherein, One end of the compression spring type thermocouple (8) is arranged outside the steel shell (6), and the other end is arranged on the copper sheet (7).
7. The smart main channel permanent layer preform with temperature measurement assembly of claim 1, wherein, The number of the copper sheets (7) is at least four.
8. The smart main channel permanent layer preform with temperature measurement assembly of claim 6, wherein, The arrangement position of the compression spring type thermocouple (8) matches the arrangement position of the copper sheet (7).
9. The smart main channel permanent layer preform with temperature measurement assembly of claim 1, wherein, The working cast layer (1) is arranged on one side of the first prefabricated part (2), the second prefabricated part (3) and the bottom permanent cast layer (4) which is away from the steel shell (6).