Heat preservation cover device for slowing down temperature drop of converter
By designing a thermal insulation cover device for converter, the furnace opening and steel outlet holes are closed using steel plates, steel pipes and fillers, the problems of converter temperature drop and energy consumption are solved, and the effect of reducing heat loss and energy costs is achieved.
Patent Information
- Application Number
- CN202411747849.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2025-02-25
AI Technical Summary
The prior art has the problem of temperature drop caused by the furnace shutdown during the converter steelmaking process, and it is necessary to prevent cooling by baking through coal-oxygen guns, resulting in large consumption of coke oven gas and compressed air, increasing energy costs.
A thermal insulation cover device is designed to slow down the temperature drop of the converter. By assembling the steel plate and steel pipe into a cover, and using fillers such as zirconium-containing rock wool, the furnace opening and steel outlet holes of the converter are closed to reduce heat loss.
It effectively slows down the heat loss of the converter, reduces the labor cost of installing and dismantling coal oxygen guns and pipelines, reduces the use of coke oven gas and compressed air, and reduces energy costs.
Smart Images
Figure CN119506509A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a heat-insulating cover device for slowing down the temperature drop of a converter, belonging to the technical field of converters. Background Art
[0002] The continuity of converter steelmaking is affected by the previous and subsequent processes and the time for equipment maintenance, and sometimes a long shutdown is required. When the converter is not in production, in order to prevent the converter from cooling down and causing the refractory to shrink and fall off, a coal-oxygen gun is required to mix coke oven gas and compressed air in a ratio of 1:5 to ignite the converter to bake the converter to prevent the converter from cooling down. This consumes a large amount of coke oven gas and compressed air, increasing energy costs. Summary of the invention
[0003] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a thermal insulation cover device for slowing down the temperature drop of a converter. The thermal insulation cover is manufactured to seal the furnace mouth of the converter, thereby reducing the labor cost of installing and removing the coal oxygen gun and pipelines, reducing the safety hazards of using coke oven gas, and saving coke oven gas and compressed air.
[0004] Preferably, the present invention provides an insulation cover device for slowing down the temperature drop of a converter, comprising a first steel plate 1, a second steel plate 2, a third steel plate 3, a fourth steel plate 4 and a second steel pipe 7, the first steel plate 1 is sleeved on the third steel plate 3, the two ends of the second steel plate 2 are respectively connected to the upper end of the first steel plate 1 and the upper end of the third steel plate 3, the lower end of the first steel plate 1 and the lower end of the third steel plate 3 are fixedly connected to the fourth steel plate 4, a second steel pipe through hole matching the second steel pipe 7 is opened in the center of the fourth steel plate 4, and the second steel pipe 7 is fixedly arranged at the second steel pipe through hole.
[0005] Preferably, it includes several fifth steel plates 5, several first I-beams 13, several second I-beams 14 and several third I-beams 15, the two ends of the first I-beams 13 are fixedly connected to the several second I-beams 14 through the several fifth steel plates 5, the two ends of the several third I-beams 15 are fixedly connected to the several second I-beams 14 through the several fifth steel plates 5, and the several second I-beams 14 are fixedly connected to the third steel plate 3.
[0006] Preferably, it includes a first steel tube 6, one end of which passes through the fourth steel plate 4, and the angle between the axis of the first steel tube 6 and the axis of the second steel tube 7 is an acute angle.
[0007] Preferably, it includes a first flange 8 and a third steel pipe 9 , a third steel pipe through hole for installing the third steel pipe 9 is opened on the second steel plate 2 , and the first flange 8 is fixedly arranged on the third steel pipe 9 .
[0008] Preferably, the third flange 10 and the fourth steel pipe 11 are included, a fourth steel pipe through hole for installing the fourth steel pipe 11 is opened on the fourth steel plate 4 , and the third flange 10 is fixedly arranged on the fourth steel pipe 11 .
[0009] Preferably, a plurality of seventh steel plates 12 are included, and the second steel plate 2 and the fourth steel plate 4 are fixedly connected via the plurality of seventh steel plates 12 .
[0010] Preferably, a filler 16 is included, the height of the first steel plate 1 is greater than the height of the second steel plate 2 , and the filler 16 is laid between the first steel plate 1 , the fourth steel plate 4 and the second steel tube 7 .
[0011] Preferably, the filler 16 is zirconium-containing rock wool.
[0012] The beneficial effects achieved by the present invention are: 1. The heat of the converter is mainly lost from the furnace mouth. Make an insulation cover to seal the furnace mouth of the converter. Use channel steel to vertically weld the cover to the front of the trough. Shake the converter to 90 degrees with the furnace mouth facing forward. Use a crane to lift the trough with the cover in front of the converter so that the cover completely covers the furnace mouth of the converter to reduce heat loss.
[0013] 2. In order to further reduce heat loss, the steel tapping hole of the cover is also sealed with slag plugs and mineral wool, which greatly slows down the heat loss of the converter, reduces the labor cost of installing and removing the coal oxygen gun and pipelines, reduces the safety hazards of using coke oven gas, and saves coke oven gas and compressed air. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the embodiments are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.
[0015] Figure 1 are cross-sectional views of some embodiments of the present application; Figure 2 yes Figure 1 Enlarged view of part C; Figure 3 is a structural diagram of some embodiments of the present application; Figure 4 is a cross-sectional view of a fifth steel plate in some embodiments of the present application; Figure 5 is a cross-sectional view of a third flange and a fourth steel pipe in some embodiments of the present application; Figure 6 yes Figure 3 Sectional view of section D; Figure 7 is a cross-sectional view of the seventh steel plate in some embodiments of the present application; The meaning of the accompanying numbers is: 1-first steel plate; 2-second steel plate; 3-third steel plate; 4-fourth steel plate; 5-fifth steel plate; 6-first steel pipe; 7-second steel pipe; 8-first flange; 9-third steel pipe; 10-third flange; 11-fourth steel pipe; 12-seventh steel plate; 13-first I-beam; 14-second I-beam; 15-third I-beam; 16-filler. DETAILED DESCRIPTION
[0016] If the descriptions of "first" and "second" etc. are involved in the present invention, they are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.
[0017] See also Figure 1 The present application provides an insulation cover device for slowing down the temperature drop of a converter, comprising a first steel plate 1, a second steel plate 2, a third steel plate 3, a fourth steel plate 4 and a second steel pipe 7. The first steel plate 1 is sleeved on the third steel plate 3, and the two ends of the second steel plate 2 are respectively connected to the upper end of the first steel plate 1 and the upper end of the third steel plate 3, the lower end of the first steel plate 1 and the lower end of the third steel plate 3 are fixedly connected to the fourth steel plate 4, and a second steel pipe through hole matching the second steel pipe 7 is opened in the center of the fourth steel plate 4, and the second steel pipe 7 is fixedly arranged at the second steel pipe through hole.
[0018] In the embodiment of the present application, four fifth steel plates 5, two first I-beams 13, four second I-beams 14 and two third I-beams 15 are included. The two ends of the first I-beam 13 are fixedly connected to the several second I-beams 14 through the several fifth steel plates 5, the two ends of the several third I-beams 15 are fixedly connected to the several second I-beams 14 through the several fifth steel plates 5, and the several second I-beams 14 are fixedly connected to the third steel plate 3.
[0019] In the embodiment of the present application, a first steel pipe 6 is included, one end of which passes through the fourth steel plate 4, and the angle between the axis of the first steel pipe 6 and the axis of the second steel pipe 7 is an acute angle.
[0020] In the embodiment of the present application, a first flange 8 and a third steel pipe 9 are included. A third steel pipe through hole for installing the third steel pipe 9 is opened on the second steel plate 2 , and the first flange 8 is fixedly arranged on the third steel pipe 9 .
[0021] In the embodiment of the present application, a third flange 10 and a fourth steel pipe 11 are included. A fourth steel pipe through hole for installing the fourth steel pipe 11 is provided on the fourth steel plate 4 , and the third flange 10 is fixedly disposed on the fourth steel pipe 11 .
[0022] In the embodiment of the present application, a plurality of seventh steel plates 12 are included, and the second steel plate 2 and the fourth steel plate 4 are fixedly connected by the plurality of seventh steel plates 12 .
[0023] In the embodiment of the present application, a filler 16 is included, the height of the first steel plate 1 is greater than the height of the second steel plate 2 , and the filler 16 is laid between the first steel plate 1 , the fourth steel plate 4 and the second steel pipe 7 .
[0024] In the embodiment of the present application, the filler 16 is zirconium-containing rock wool.
[0025] The first steel plate 1, the second steel plate 2, the third steel plate 3, and the fourth steel plate 4 are annular plates, the fifth steel plate 5 is a square plate, the first steel pipe 6, the second steel pipe 7, the third steel pipe 9, and the fourth steel pipe 11 are cylindrical steel pipes, and the first I-beam 13, four second I-beams 14 and two third I-beams 15 are I-shaped steels.
[0026] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.
[0027] Those skilled in the art will readily appreciate other embodiments of the invention after considering the specification and practicing the invention invented herein. This application is intended to cover any variations, uses or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art that are not invented by the present invention. The specification and examples are intended to be exemplary only, and the true scope and spirit of the invention are indicated by the claims.
[0028] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", "connected", and "matched" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two elements, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change; Secondly: In the drawings of the embodiments of the present invention, only the structures involved in the embodiments of the present invention are involved, and other structures can refer to the general design; the above specific implementation methods further explain the purpose, technical solutions and beneficial effects of the present application in detail. It should be understood that the above are only specific implementation methods of the present application and are not used to limit the protection scope of the present application. Any modifications, equivalent substitutions, improvements, etc. made on the basis of the technical solutions of the present application should be included in the protection scope of the present application.
Claims
1. A heat preservation cover device for slowing down the temperature drop of a converter, characterized in that: The invention comprises a first steel plate (1), a second steel plate (2), a third steel plate (3), a fourth steel plate (4) and a second steel pipe (7), wherein the first steel plate (1) is sleeved on the third steel plate (3), two ends of the second steel plate (2) are respectively connected to the upper end of the first steel plate (1) and the upper end of the third steel plate (3), the lower end of the first steel plate (1) and the lower end of the third steel plate (3) are fixedly connected to the fourth steel plate (4), a second steel pipe through hole for matching the second steel pipe (7) is provided at the center of the fourth steel plate (4), and the second steel pipe (7) is fixedly arranged at the second steel pipe through hole.
2. The heat preservation cover device for slowing down the temperature drop of a converter according to claim 1, characterized in that: The invention comprises a plurality of fifth steel plates (5), a plurality of first I-beams (13), a plurality of second I-beams (14) and a plurality of third I-beams (15), wherein two ends of the first I-beams (13) are fixedly connected to the plurality of second I-beams (14) via the plurality of fifth steel plates (5), two ends of the plurality of third I-beams (15) are fixedly connected to the plurality of second I-beams (14) via the plurality of fifth steel plates (5), and the plurality of second I-beams (14) are fixedly connected to the third steel plates (3).
3. The heat preservation cover device for slowing down the temperature drop of a converter according to claim 1, characterized in that: It comprises a first steel pipe (6), one end of the first steel pipe (6) passes through a fourth steel plate (4), and the included angle between the axis of the first steel pipe (6) and the axis of the second steel pipe (7) is an acute angle.
4. The heat preservation cover device for slowing down the temperature drop of a converter according to claim 1, characterized in that: It comprises a first flange (8) and a third steel pipe (9); a third steel pipe through hole for installing the third steel pipe (9) is provided on the second steel plate (2); and the first flange (8) is fixedly arranged on the third steel pipe (9).
5. The heat preservation cover device for slowing down the temperature drop of a converter according to claim 1, characterized in that: It comprises a third flange (10) and a fourth steel pipe (11); a fourth steel pipe through hole for installing the fourth steel pipe (11) is provided on the fourth steel plate (4); and the third flange (10) is fixedly arranged on the fourth steel pipe (11).
6. The heat preservation cover device for slowing down the temperature drop of a converter according to claim 1, characterized in that: It comprises a plurality of seventh steel plates (12), and the second steel plate (2) and the fourth steel plate (4) are fixedly connected via the plurality of seventh steel plates (12).
7. The heat preservation cover device for slowing down the temperature drop of a converter according to claim 1, characterized in that: It comprises a filling material (16); the height of the first steel plate (1) is greater than the height of the second steel plate (2); and the filling material (16) is laid between the first steel plate (1), the fourth steel plate (4) and the second steel pipe (7).
8. The heat preservation cover device for slowing down the temperature drop of a converter according to claim 7, characterized in that: The filler (16) is zirconium-containing rock wool.