Movable furnace door of converter

Abstract

The utility model discloses a movable furnace door of a converter in the technical field of converters, which comprises a track and a furnace door, the track is erected on the external ground, a track groove is arranged on the lower wall of the furnace door, the track is clamped in the track groove, a cleaning mechanism is mounted on the side wall of the furnace door, and the cleaning mechanism is sleeved on the outer side of the track. The cleaning mechanism comprises a scraping ring, an elastic telescopic rod and a heating sleeve, the end, provided with the elastic telescopic rod, of the side wall of the furnace door is inserted, the scraping ring is installed at the other end of the elastic telescopic rod, the rail is sleeved with the scraping ring, the scraping ring can be attached to the outer side wall of the rail, and the heating sleeve is installed on the side wall of the scraping ring. According to the device, the cleaning mechanism is arranged on the track, when the furnace door is closed, impurities on the track are cleaned and scraped off in advance, the situation that closing of the furnace door is affected is avoided, meanwhile, steel slag on the track can be heated in advance through the arrangement of the heating sleeve, the steel slag can be scraped off more easily, and the cleaning effect on the track is improved.

Description

A movable furnace door for a converter Technical Field

[0001] This utility model relates to the field of converter technology, specifically a movable converter door. Background Technology

[0002] A converter is a tiltable cylindrical oxygen-blown steelmaking vessel. Its furnace body is cylindrical and mounted on a horizontal shaft frame, allowing it to rotate. A furnace door is installed on the outside of the converter to seal the converter chamber. The main functions of the converter furnace door include observing the furnace condition and carrying out smelting operations. The design of the converter furnace door allows operators to observe the condition inside the furnace during the smelting process, while performing operations such as slag making, oxygen blowing, sampling and temperature measurement, and furnace repair after steel tapping.

[0003] Existing converter doors are generally mounted on tracks and moved horizontally by hydraulic rods to seal the converter chamber. However, during the process of injecting molten steel into the converter, molten steel can easily splash onto the tracks, affecting the movement of the doors. Summary of the Invention

[0004] The purpose of this utility model is to provide a movable converter door to solve the problem mentioned in the background art that the existing converter doors are generally mounted on tracks and moved by hydraulic rods to seal the converter chamber. However, during the process of injecting molten steel into the converter, molten steel is easily splashed onto the tracks, which affects the movement of the door.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a converter movable furnace door, including a track and a furnace door, the track being erected on the external ground, the lower wall of the furnace door having a track groove, the track being inserted into the track groove, and a cleaning mechanism being installed on the side wall of the furnace door, the cleaning mechanism being sleeved on the outside of the track;

[0006] The cleaning mechanism includes a scraping ring, an elastic telescopic rod, and a heating sleeve. One end of the elastic telescopic rod is inserted into the side wall of the furnace door, and the other end of the elastic telescopic rod is equipped with a scraping ring. The scraping ring is sleeved on the outside of the track and can fit against the outer wall of the track. A heating sleeve is installed on the side wall of the scraping ring, and the heating sleeve can heat the track.

[0007] As a preferred embodiment of this utility model, the heating sleeve includes a cylinder, a placement groove, an electric heating wire, and a heat-conducting plate. The cylinder is sleeved on the outside of the track. The inner cavity of the cylinder has a placement groove. The heat-conducting plate is placed in the placement groove. The heat-conducting plate is inserted into the scraper ring through the side wall of the cylinder. An electric heating wire is wound around the outside of the heat-conducting plate. The electric heating wire is electrically connected to an external power source.

[0008] As a preferred embodiment of this utility model, there are two furnace doors, and each of the two furnace doors has a clearance groove on its side wall. An observation window is installed in the clearance groove, and the two observation windows can be spliced ​​together.

[0009] As a preferred embodiment of this utility model, the elastic telescopic rod includes a main rod body, a secondary rod body, a spring, and a dustproof rubber ring. The main rod body is inserted and installed on the side wall of the furnace door. The secondary rod body is inserted and installed on the side wall of the main rod body. A spring is installed at one end of the secondary rod body inside the main rod body. A dustproof rubber ring is installed on the side wall of the main rod body, and the dustproof rubber ring is in contact with the side wall of the secondary rod body.

[0010] As a preferred embodiment of this invention, sealing gaskets are fitted to the side walls of both observation windows.

[0011] As a preferred embodiment of this utility model, a material drop groove is provided in the middle of the track, and a fixing sleeve is installed at both ends of the track. A connecting plate is installed on the lower wall of the fixing sleeve, and a fixing bolt is inserted into the upper wall of the connecting plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This device incorporates a cleaning mechanism on its track, which pre-cleans and scrapes away impurities on the track when the furnace door closes, preventing any obstruction to the door's closure. Simultaneously, the heating sleeve pre-heats the steel slag on the track, making it easier to scrape off and improving the cleaning effect. Attached Figure Description

[0014] Figure 1 is a schematic diagram of the structure of this patent;

[0015] Figure 2 is a schematic diagram of the structure at point A in Figure 1;

[0016] Figure 3 is a schematic diagram of the cleaning mechanism structure of this patent.

[0017] In the diagram: 1 Track, 2 Furnace door, 3 Track groove, 4 Cleaning mechanism, 41 Scraper ring, 42 Elastic telescopic rod, 43 Heating sleeve, 5 Clearance groove, 6 Observation window, 7 Sealing gasket, 8 Material drop groove, 9 Fixing sleeve, 10 Connecting plate, 11 Fixing bolt, 421 Main rod body, 422 Secondary rod body, 423 Spring, 424 Dustproof rubber ring, 431 Cylinder body, 432 Placement groove, 433 Electric heating wire, 434 Heat conducting plate. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please refer to Figures 1-3. This utility model provides a technical solution:

[0020] In this technical solution, a converter movable furnace door includes a track 1 and a furnace door 2. The track 1 is installed on the external ground. The lower wall of the furnace door 2 is provided with a track groove 3. The track 1 is inserted into the track groove 3. A cleaning mechanism 4 is installed on the side wall of the furnace door 2. The cleaning mechanism 4 is sleeved on the outside of the track 1.

[0021] The cleaning mechanism 4 includes a scraping ring 41, an elastic telescopic rod 42, and a heating sleeve 43. One end of the elastic telescopic rod 42 is inserted into the side wall of the furnace door 2, and the other end of the elastic telescopic rod 42 is equipped with a scraping ring 41. The scraping ring 41 is sleeved on the outside of the track 1 and can fit against the outer side wall of the track 1. The heating sleeve 43 is installed on the side wall of the scraping ring 41 and can heat the track 1.

[0022] In this technical solution, due to the setting of its scraper ring 41, the steel slag and other impurities on the track 1 can be cleaned in advance when the furnace door 2 is closed, so that there are no impurities on the track 1, ensuring that the furnace door 2 can be closed normally and that the furnace door 2 moves smoothly.

[0023] The heating sleeve 43 can heat the track 1 in advance, loosening the steel slag on top of it, making it easier for the scraper ring 41 to scrape it off, thus improving the cleaning effect of the scraper ring 41.

[0024] In some technical solutions, the heating sleeve 43 includes a cylinder 431, a placement groove 432, an electric heating wire 433, and a heat-conducting plate 434. The cylinder 431 is sleeved on the outside of the track 1. The inner cavity of the cylinder 431 is provided with a placement groove 432. The heat-conducting plate 434 is placed in the placement groove 432. The heat-conducting plate 434 penetrates the side wall of the cylinder 431 and is inserted into the scraper ring 41. The electric heating wire 433 is wound and installed on the outside of the heat-conducting plate 434. The electric heating wire 433 is electrically connected to an external power source.

[0025] In this technical solution, during use, the electric heating wire 433 heats the heat-conducting plate 434, and the heat-conducting plate 434 conducts heat to the track 1 and the scraper ring 41, so that the steel slag on the track 1 is loosened and melted, making it easier to clean.

[0026] In some technical solutions, there are two furnace doors 2. The side walls of the two furnace doors 2 are provided with clearance grooves 5. Observation windows 6 are installed in the clearance grooves 5. The two observation windows 6 can be spliced ​​together.

[0027] In this technical solution, the observation window 6 serves to facilitate staff to observe the conditions inside the converter while performing operations such as slag making, oxygen blowing, and temperature sampling.

[0028] In some technical solutions, the elastic telescopic rod 42 includes a main rod body 421, a secondary rod body 422, a spring 423, and a dustproof rubber ring 424. The main rod body 421 is inserted and installed on the side wall of the furnace door 2. The secondary rod body 422 is inserted and installed on the side wall of the main rod body 421. The spring 423 is installed at one end of the secondary rod body 422 located inside the main rod body 421. The dustproof rubber ring 424 is installed on the side wall of the main rod body 421 and fits against the side wall of the secondary rod body 422.

[0029] In this technical solution, the elastic telescopic rod 42 can contract when the scraper ring 41 is obstructed. At this time, the spring 423 is compressed and stores energy. When the steel slag loosens due to the increase in temperature, the energy stored in the spring 423 is released, pushing the scraper ring 41 and removing the steel slag from the track 1.

[0030] The dustproof rubber ring 424 can prevent external dust and other contaminants from entering the main body 421.

[0031] In some technical solutions, sealing gaskets 7 are fitted to the side walls of both observation windows 6.

[0032] In this technical solution, by setting a sealing gasket 7 on the observation window 6, the sealing effect at the observation window 6 can be improved after the furnace door 2 is closed. In this paper, the sealing gasket 7 is made of high temperature resistant material.

[0033] In some technical solutions, a material drop chute 8 is provided in the middle of the track 1, and a fixing sleeve 9 is installed at both ends of the track 1. A connecting plate 10 is installed on the lower wall of the fixing sleeve 9, and a fixing bolt 11 is inserted into the upper wall of the connecting plate 10.

[0034] In this technical solution, the fixed sleeve 9 can fix the track 1 on the one hand, and limit the furnace door 2 on the other hand, preventing the furnace door 2 from sliding off the track 1.

[0035] Working principle: Under the action of the external hydraulic rod, the two furnace doors 2 will move towards the middle of the track 1 to close the converter chamber. When the furnace door 2 is closed, the scraper ring 41 first cleans the steel slag and other impurities on the track 1 to ensure that there are no impurities on the track 1, so that the furnace door 2 can close normally and the furnace door 2 can move smoothly.

[0036] At the same time, the heating sleeve 43 can heat the track 1 in advance, loosening the steel slag on its upper part, making it easier for the scraper ring 41 to scrape it off, thus improving the cleaning effect of the scraper ring 41.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A converter movable furnace door, comprising a track (1) and a furnace door (2), characterized in that: The track (1) is erected on the external ground. The lower wall of the furnace door (2) is provided with a track groove (3). The track (1) is inserted into the track groove (3). A cleaning mechanism (4) is installed on the side wall of the furnace door (2). The cleaning mechanism (4) is sleeved on the outside of the track (1). The cleaning mechanism (4) includes a scraper ring (41), an elastic telescopic rod (42), and a heating sleeve (43). One end of the elastic telescopic rod (42) is inserted into the side wall of the furnace door (2). The other end of the elastic telescopic rod (42) is equipped with a scraper ring (41). The scraper ring (41) is sleeved on the outside of the track (1). The scraper ring (41) can fit against the outer wall of the track (1). The side wall of the scraper ring (41) is equipped with a heating sleeve (43). The heating sleeve (43) can heat the track (1).

2. The converter movable furnace door according to claim 1, characterized in that: The heating sleeve (43) includes a cylinder (431), a placement groove (432), an electric heating wire (433), and a heat-conducting plate (434). The cylinder (431) is sleeved on the outside of the track (1). The inner cavity of the cylinder (431) is provided with a placement groove (432). The heat-conducting plate (434) is placed in the placement groove (432). The heat-conducting plate (434) penetrates the side wall of the cylinder (431) and is inserted into the scraper ring (41). The electric heating wire (433) is wound around the outside of the heat-conducting plate (434). The electric heating wire (433) is electrically connected to an external power source.

3. A converter movable furnace door according to claim 1, characterized in that: There are two furnace doors (2), and each of the two furnace doors (2) has a clearance groove (5) on its side wall. An observation window (6) is installed in the clearance groove (5), and the two observation windows (6) can be spliced ​​together.

4. A converter movable furnace door according to claim 1, characterized in that: The elastic telescopic rod (42) includes a main rod body (421), a secondary rod body (422), a spring (423), and a dustproof rubber ring (424). The main rod body (421) is inserted and installed on the side wall of the furnace door (2). The secondary rod body (422) is inserted and installed on the side wall of the main rod body (421). The spring (423) is installed at one end of the secondary rod body (422) inside the main rod body (421). The dustproof rubber ring (424) is installed on the side wall of the main rod body (421). The dustproof rubber ring (424) is attached to the side wall of the secondary rod body (422).

5. A converter movable furnace door according to claim 3, characterized in that: Both observation windows (6) have sealing gaskets (7) fitted to their sidewalls.

6. A converter movable furnace door according to claim 1, characterized in that: The track (1) has a material drop chute (8) in the middle. Both ends of the track (1) are equipped with fixing sleeves (9). The lower wall of the fixing sleeve (9) is equipped with a connecting plate (10). The upper wall of the connecting plate (10) is fitted with fixing bolts (11).

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