Platform for leak repairing of bent flue of electric furnace

Abstract

The utility model discloses a platform for leak repairing of a bent flue of an electric furnace, which relates to the technical field of metallurgical equipment and comprises a heat insulation platform component, the heat insulation platform component is arranged on a hearth of the electric furnace, one end of the hearth of the electric furnace is provided with a fixed crawling ladder matched with the heat insulation platform component, and one end of the top of the heat insulation platform component is provided with a crawling ladder component. One end of the crawling ladder assembly is arranged in the flue, and a movable sliding sleeve is arranged outside one end of the flue in a sleeving mode. The movable inclined ladder stand is reasonable and reliable in structure and easy to operate, the inclination angle of the movable inclined ladder stand can be flexibly adjusted, it is ensured that personnel can enter the heat-insulation maintenance platform in the most comfortable and safe mode, the climbing difficulty is reduced, the heat-insulation maintenance platform can adapt to leakage repairing work of electric furnace bent flues of different heights and angles, and the working efficiency is improved. Therefore, the adaptability and the safety of the platform for leak repairing of the bent flue of the electric furnace are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to metallurgical equipment technical field, concretely related to a platform for electric furnace curved flue leak repair. BACKGROUND

[0002] The seamless pipe of the vaporization flue of the vaporization cooling system of the steelmaking electric furnace causes pipe leakage due to long-term scouring of the electric furnace flue gas or other reasons, if not handled in time, it can cause the whole flue to burn out and be scrapped, and a large amount of cooling water entering the furnace can also cause production safety hazards, in order to prolong the service life of the flue, it is necessary to enter the flue to repair the leakage during the shutdown time. The flue is curved flue (the curved flue is inclined at an angle of 57°) at the upper part, and it is very difficult to repair the leakage online, especially the leakage repair at the top of the flue, the steel soft ladder cannot reach the leakage repair position. The conventional leakage repair platform is to use a steel soft ladder to enter the flue from the upper flue air suction port, then weld a temporary leakage repair platform in the flue, and then remove the temporary platform after the work is completed. This leakage repair platform is time-consuming and unsafe, and the personnel entering the flue to weld the platform support on the seamless pipe is also easy to damage the seamless pipe.

[0003] At present, no effective solution has been proposed for the problems in the related art. CONTENT OF THE UTILITY MODEL

[0004] In view of the problems in the related art, the utility model provides a platform for electric furnace curved flue leak repair to overcome the above technical problems existing in the prior art.

[0005] Therefore, the utility model adopts the specific technical scheme as follows:

[0006] A platform for electric furnace curved flue leak repair, comprising a heat insulation platform assembly, the heat insulation platform assembly is arranged on the electric furnace hearth, one end of the electric furnace hearth is provided with a fixed ladder in cooperation with the heat insulation platform assembly, one end of the top of the heat insulation platform assembly is provided with a ladder assembly, one end of the ladder assembly is arranged in the flue, and the outer part of one end of the flue is provided with a movable sliding sleeve.

[0007] Further, in order to effectively isolate the high temperature of the furnace hearth under the action of the heat insulation platform assembly, protect the construction personnel from high temperature injury, improve the operation safety, and by adjusting the position of the movable inclined ladder, different water leakage points can be adapted, without welding steel in the flue to set up a temporary leakage repair platform, time and materials are saved, thereby improving the operation efficiency of the platform for repairing the curved flue of the electric furnace, the heat insulation platform assembly comprises a heat insulation maintenance platform arranged at the top of the furnace hearth, two ends of the top of the heat insulation maintenance platform are symmetrically provided with fixed lifting points, one side of one of the fixed lifting points is provided with a supporting base matched with the ladder assembly, the top of the heat insulation maintenance platform is provided with a plurality of position fixing plates, the inside of the heat insulation maintenance platform is provided with a plurality of heat insulation cotton, and a fixing plate pin hole one is formed in one side of the top of the position fixing plate.

[0008] Further, in order to adjust the slope and length according to actual operation requirements under the action of the ladder assembly, and by adjusting the hoist, the inclination angle of the movable inclined ladder can also be flexibly adjusted, personnel can enter the platform in the most comfortable and safe way, the climbing difficulty is reduced, the platform can adapt to the repair operation of the curved flue of the electric furnace at different heights and angles, and therefore the adaptability and safety of the platform for repairing the curved flue of the electric furnace are improved, the ladder assembly comprises a movable inclined ladder arranged at the top of the supporting base, a fixed plate matched with the position fixing plate is arranged at the bottom of one end of the movable inclined ladder, a straight ladder is arranged at the bottom of the side wall of one end of the movable inclined ladder, a plurality of adjusting hoists are arranged at the top of one end of the movable inclined ladder, a fixed plate pin hole two matched with the fixed plate pin hole one is formed in one side of the bottom of the fixed plate, and the fixed plate pin hole one and the fixed plate pin hole two are connected through a fixing bolt.

[0009] The electric furnace curved flue leakage repair platform has the advantages that:

[0010] 1、The electric furnace curved flue leakage repair platform has the advantages that:

[0011] 2、By setting the heat insulation platform assembly, the heat insulation maintenance platform is stably suspended at the top of the furnace by the fixed lifting point of the top of the heat insulation maintenance platform, and the support base, the movable inclined ladder and the straight ladder provide a convenient channel for personnel to go up and down the heat insulation maintenance platform, the heat insulation cotton filled in the heat insulation maintenance platform effectively isolates the high temperature of the furnace, prevents heat conduction to the surface of the heat insulation maintenance platform, ensures the safety and comfort of the maintenance personnel in the high temperature environment, the position fixing plate at the top of the heat insulation maintenance platform and the fixed plate pin hole one further enhance the connection firmness of the heat insulation maintenance platform and the movable inclined ladder, the angle of the ladder body can be adjusted by adjusting the hoist, the needs of complex operation environment are met, so that different water leakage points can be adapted, a temporary leakage repair platform does not need to be set up by welding section steel in the flue, time and materials are saved, and the operation efficiency of the platform for repairing the bent flue of the electric furnace is improved.

[0012] 3、By setting the ladder assembly, the bottom of the fixed plate is provided with a fixed plate pin hole two corresponding to the fixed plate pin hole one on the position fixing plate, and the two are firmly connected through a fixed bolt, so that the stable combination of the movable inclined ladder and the platform is ensured, displacement or loosening during operation is avoided, a plurality of adjusting hoists are arranged at one end of the top of the movable inclined ladder, the inclination angle or height of the inclined ladder can be adjusted by operating the adjusting hoists, so that the operation needs of different electric furnace bent flue leakage repair scenes are met, the angle of the inclined ladder can be flexibly adjusted according to the site restriction or the height requirement of the platform, the fit of the ladder with the ground and the climbing comfort and safety of personnel are ensured, so that the adaptability and safety of the platform for repairing the bent flue of the electric furnace are improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0014] Figure 1 is a structural schematic view of a platform for repairing a bent flue of an electric furnace according to an embodiment of the present application;

[0015] Figure 2 is a structural schematic view of a heat insulation platform assembly in a platform for repairing a bent flue of an electric furnace according to an embodiment of the present application;

[0016] Figure 3 is a structural schematic view of a ladder assembly in a platform for repairing a bent flue of an electric furnace according to an embodiment of the present application;

[0017] Figure 4It is the electric furnace bent flue leak point position schematic diagram according to the embodiment of the utility model.

[0018] In the figure,

[0019] 1, heat insulation platform assembly;101, heat insulation maintenance platform;102, fixed lifting point;103, support base;104, position fixing plate;105, heat insulation cotton;106, fixed plate pin hole one;2, electric furnace hearth;3, fixed ladder;4, ladder assembly;401, movable inclined ladder;402, fixed plate;403, straight ladder;404, adjusting hoist;405, fixed plate pin hole two;5, flue;6, movable sliding sleeve;7, fixed bolt. DETAILED DESCRIPTION

[0020] To further illustrate the embodiments, the utility model provides with the drawings, these drawings are part of the utility model disclosure, it mainly used to illustrate the embodiment, and can cooperate with the relevant description of the specification to explain the operation principle of the embodiment, cooperate with reference to these contents, the person skilled in the art should be able to understand other possible implementation ways and the advantages of the utility model, the components in the figure are not drawn according to scale, and similar component symbols are usually used to represent similar components.

[0021] According to the embodiment of the utility model, a platform for electric furnace bent flue leak repair is provided.

[0022] The utility model will be further illustrated by combining with the drawings and specific embodiments, as Figures 1-3 The platform for electric furnace bent flue leak repair according to the embodiment of the utility model, including heat insulation platform assembly 1, heat insulation platform assembly 1 is set up on electric furnace hearth 2, and one end of electric furnace hearth 2 is provided with fixed ladder 3 in cooperation with heat insulation platform assembly 1, and one end of the top of heat insulation platform assembly 1 is provided with ladder assembly 4, and one end of ladder assembly 4 is arranged in flue 5, and the outside of one end of flue 5 is provided with movable sliding sleeve 6.

[0023] In addition, the structure and working principle of electric furnace hearth 2, flue 5, heat insulation cotton 105, fixed ladder 3, straight ladder 403, movable inclined ladder 401, adjusting hoist 404, safety belt and fall arrestor are prior art, which will not be described in detail here.

[0024] In one embodiment, for the above-mentioned heat insulation platform assembly 1, the heat insulation platform assembly 1 comprises a heat insulation maintenance platform 101 arranged at the top of the electric furnace hearth 2, the top of the heat insulation maintenance platform 101 is symmetrically provided with fixed lifting points 102 at both ends, one side of one of the fixed lifting points 102 is provided with a supporting base 103 matched with the ladder assembly 4, the top end of the heat insulation maintenance platform 101 is provided with a plurality of position fixing plates 104, the inside of the heat insulation maintenance platform 101 is provided with a plurality of heat insulation cottons 105, and the top side of the position fixing plate 104 is provided with a fixing plate pin hole one 106, so that under the action of the heat insulation platform assembly 1, the high temperature of the electric furnace hearth can be effectively isolated, the construction personnel is protected from high temperature injury, the operation safety is improved, and by adjusting the position of the movable inclined ladder, different water leakage points can be adapted, temporary leakage repair platforms do not need to be welded in the flue, time and materials are saved, and thus the operation efficiency of the platform for repairing the bent flue of the electric furnace is improved.

[0025] The specific working principle of the heat insulation platform assembly 1 is as follows: the heat insulation maintenance platform 101 is stably suspended at the top of the electric furnace hearth 2 through the fixed lifting points 102 at the top of the heat insulation maintenance platform 101, and in combination with the supporting base 103, the movable inclined ladder 401 and the straight ladder 403, a convenient channel is provided for personnel to go up and down the heat insulation maintenance platform 101, the heat insulation cotton 105 filled in the inside of the heat insulation maintenance platform 101 effectively isolates the high temperature of the hearth, prevents heat conduction to the surface of the heat insulation maintenance platform 101, and ensures the safety and comfort of the maintenance personnel in the high temperature environment, the position fixing plate 104 and the fixing plate pin hole one 106 at the top end of the heat insulation maintenance platform 101 further enhance the connection firmness of the heat insulation maintenance platform 101 and the movable inclined ladder 401, the angle of the ladder body can be adjusted by adjusting the hoist 404, the needs of complex operation environment are met, different water leakage points can be adapted, temporary leakage repair platforms do not need to be welded in the flue, time and materials are saved, and thus the operation efficiency of the platform for repairing the bent flue of the electric furnace is improved.

[0026] In one embodiment, for the above-mentioned ladder assembly 4, the ladder assembly 4 comprises a movable ladder 401 arranged at the top end of the support base 103, and in a specific application, the movable ladder 401 is a movable ladder 401 with a handrail, one end of the movable ladder 401 is provided with a fixed plate 402 matched with the position fixed plate 104, one end of the movable ladder 401 is provided with a straight ladder 403 at the bottom of the side wall, and a plurality of adjusting hoists 404 are arranged at the top of one end of the movable ladder 401, the bottom of the fixed plate 402 is provided with a fixed plate pin hole two 405 matched with the fixed plate pin hole one 106, and the fixed plate pin hole one 106 and the fixed plate pin hole two 405 are connected through a fixing bolt 7, so that under the action of the ladder assembly 4, the slope and length can be adjusted according to the actual operation requirements, and through the adjusting hoists 404, the inclination angle of the movable ladder 401 can also be flexibly adjusted, so as to ensure that personnel can enter the platform in the most comfortable and safe way, reduce the climbing difficulty, make the platform adapt to the electric furnace curved flue leakage repair operation of different heights and angles, and thus improve the adaptability and safety of the platform for the electric furnace curved flue leakage repair.

[0027] The specific working principle of the ladder assembly 4 is as follows: the bottom of the fixed plate 402 is provided with a fixed plate pin hole two 405 corresponding to the fixed plate pin hole one 106 on the position fixed plate 104, and the two are firmly connected through a fixing bolt 7, so as to ensure the stable combination of the movable ladder and the platform, avoid displacement or loosening during operation, a plurality of adjusting hoists 404 are arranged at the top of one end of the movable ladder 401, in a specific application, the rear end of the movable ladder 401 is fixed by four hand hoists, the inclination angle or height of the ladder can be adjusted by operating the adjusting hoists 404, so as to adapt to the operation requirements of different electric furnace curved flue leakage repair scenes, the angle of the ladder can be flexibly adjusted according to the site restriction or platform height requirement, so as to ensure the adhesion of the ladder to the ground and the climbing comfort and safety of personnel, and thus improve the adaptability and safety of the platform for the electric furnace curved flue leakage repair.

[0028] In order to facilitate the understanding of the above technical scheme of the utility model, the working principle or operation mode of the utility model in the actual process will be described in detail.

[0029] In practical applications, during electric furnace shutdown, a crane is used to hoist the heat insulation maintenance platform 101 to the furnace edge. Its position is adjusted so that the support base 103 on the heat insulation maintenance platform 101 is aligned with the flue opening of the flue 5, providing a stable support platform for subsequent operations. Workers climb onto the heat insulation maintenance platform 101 via the fixed ladder 3 on one side of the furnace chamber 2, preparing to install the ladder assembly 4. The crane then hoists the movable inclined ladder 401 onto the support base 103 of the heat insulation maintenance platform 101, and the adjusting hoist 404 is used to adjust the movable inclined ladder 401. The tilt angle is adjusted to ensure the inclined ladder enters the flue slowly, avoiding impact on the inner wall of the flue and preventing secondary damage. The position of the movable inclined ladder 401 is adjusted so that its bottom fixing plate 402 aligns with the position fixing plate 104 on the heat insulation maintenance platform 101. After aligning the concentric fixing plate pin holes 106 and 405, it is fixed with fixing bolts 7. The heat insulation maintenance platform 101 provides two fixing points, allowing the position of the movable inclined ladder 401 to be adjusted according to the needs of the welding repair work, thereby enabling welding repair operations on different leakage points on the inner and outer arcs of the flue 5 (such as...). Figure 4 As shown, the leak points in the electric furnace curved flue include leak point A on the windward side and leak point B on the curved flue coil. Next, the construction workers, wearing safety belts and fall arrestors, climbed into the flue 5 via the fixed movable inclined ladder 401 to perform repair welding on the leak points. Due to the heat insulation function of the insulation cotton 105, the heat insulation maintenance platform 101 effectively isolated the high temperature of the furnace, providing a safe working environment for the construction workers. After the leak repair work was completed, the movable inclined ladder 401 was hoisted by a crane, and the fixing bolts 7 between it and the heat insulation maintenance platform 101 were removed. The movable inclined ladder 401 was then slowly lifted out of the flue 5. Subsequently, the heat insulation maintenance platform 101 was lifted off the furnace edge as a whole, completing the entire leak repair operation process.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A platform for repairing leaks in a curved flue of an electric furnace, comprising a heat- insulated platform assembly (1), characterized in that, The heat insulation platform assembly (1) is arranged on the electric furnace hearth (2), one end of the electric furnace hearth (2) is provided with a fixed ladder (3) matched with the heat insulation platform assembly (1), one end of the top of the heat insulation platform assembly (1) is provided with a ladder assembly (4), one end of the ladder assembly (4) is arranged in a flue (5), and the outside of one end of the flue (5) is sleeved with a movable sliding sleeve (6).

2. A platform for repairing leaks in a curved flue of an electric furnace according to claim 1, characterized in that, The heat insulation platform assembly (1) comprises a heat insulation maintenance platform (101) arranged on the top of the electric furnace hearth (2), and the top of the heat insulation maintenance platform (101) is symmetrically provided with fixed lifting points (102) at both ends, and one side of one of the fixed lifting points (102) is provided with a supporting base (103) matched with the ladder assembly (4).

3. A platform for repairing leaks in a flue of an electric furnace according to claim 2, characterized in that, The top end of the heat insulation maintenance platform (101) is provided with a plurality of position fixing plates (104), the inside of the heat insulation maintenance platform (101) is provided with a plurality of heat insulation cottons (105), and the top side of the position fixing plate (104) is provided with a fixing plate pin hole one (106).

4. A platform for repairing leaks in a flue of an electric furnace according to claim 3, characterized in that, The ladder assembly (4) comprises a movable inclined ladder (401) arranged at the top of the supporting base (103), and the bottom of one end of the movable inclined ladder (401) is provided with a fixing plate (402) matched with the position fixing plate (104).

5. A platform for repairing leaks in a flue of an electric furnace according to claim 4, characterized in that, The bottom of one end of the movable inclined ladder (401) is provided with a straight ladder (403), and the top of one end of the movable inclined ladder (401) is provided with a plurality of adjusting hoists (404).

6. A platform for repairing leaks in a flue of an electric furnace according to claim 5, characterized in that, The bottom side of the fixing plate (402) is provided with a fixing plate pin hole two (405) matched with the fixing plate pin hole one (106).

7. A platform for repairing leaks in a flue of an electric furnace according to claim 6, characterized in that, The fixing plate pin hole one (106) and the fixing plate pin hole two (405) are connected through a fixing bolt (7).

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