Z-shaped door for closed furnace cover

Abstract

The utility model discloses a Z-shaped door for a closed furnace cover, which comprises a closed furnace cover body, the closed furnace cover body is provided with three groups of electrodes, three groups of large inclined planes and three groups of small inclined planes, the three groups of small inclined planes are all provided with mounting ports, and Z-shaped doors are movably arranged on the mounting ports. The outer surface of one end of the Z-shaped door is connected with the outer surface of the small inclined face through a hinge assembly, a first fender is fixedly arranged on the outer side of the installation opening and located on the round edge of the small inclined face, and a second fender is fixedly arranged on the edge of the outer surface, close to the installation opening, of the Z-shaped door. According to the utility model, the three Z-shaped doors are respectively arranged on the three small material surfaces of the closed furnace cover, and the broken electrode can be easily taken out by opening the Z-shaped doors at the corresponding positions after the electrode is broken, so that the electrode can be conveniently replaced and maintained, and the condition that the hot furnace shutdown time is very long is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of closed furnaces in the metallurgical industry, in particular to a Z-shaped door for a closed furnace cover. Background Art

[0002] In a closed furnace, the height of the closed furnace cover is relatively small, about 900-1300mm. During the operation of the closed furnace, if the electrode breaks, the overall cover plate of the small material surface needs to be removed. Due to the large number of connecting bolts, it is difficult to remove after a long time. Even if the electrode is taken out, it takes a long time to install it, resulting in a long hot shutdown time. For this reason, a Z-shaped door for the closed furnace cover is designed. Utility Model Content

[0003] In view of the problems mentioned in the background technology, the purpose of the utility model is to provide a Z-shaped door for a closed furnace cover to solve the problems mentioned in the background technology.

[0004] The above technical objectives of the utility model are achieved through the following technical solutions:

[0005] A Z-shaped door for a closed furnace cover, comprising a closed furnace cover body, the closed furnace cover body is provided with three groups of electrodes, three groups of large inclined surfaces and three groups of small inclined surfaces, the three groups of small inclined surfaces are provided with mounting openings, the mounting openings are movably provided with a Z-shaped door, the outer surface of one end of the Z-shaped door is connected to the outer surface of the small inclined surface through a hinge assembly, a first fender is fixedly provided on the outer side of the mounting opening at the circular edge of the small inclined surface, a second fender is fixedly provided on the outer surface edge of the Z-shaped door close to the mounting opening, and a closed notch for filling refractory mud is formed between the first fender and the second fender;

[0006] The hinge assembly includes two groups of fixed blocks, two groups of connecting rods, a pin shaft and a fixing piece. The two groups of fixed blocks are welded to the surface of the small slope. One end of the two groups of connecting rods is rotatably connected to the two groups of fixed blocks through the pin shaft, and the other end of the two groups of connecting rods is connected to the outer surface of one end of the Z-shaped door through the fixing piece.

[0007] By adopting the above technical scheme, three Z-shaped doors are respectively arranged on the three small material surfaces of the closed furnace cover. After the electrode is broken, the broken electrode can be easily taken out by opening the Z-shaped door at the corresponding position, thereby facilitating the replacement and maintenance of the electrode and avoiding the situation where the thermal shutdown time is very long; by arranging the first mud guard and the second mud guard, after the Z-shaped door is closed, the connection between the Z-shaped door and the installation port can be sealed by filling refractory mud into the closed groove, thereby increasing the airtightness.

[0008] Preferably, the hinged components are provided in two groups, and the two groups of hinged components are respectively provided on both sides of the Z-shaped door.

[0009] By adopting the above technical solution, the stability of the Z-shaped door during installation and use can be increased.

[0010] Preferably, two groups of the fixing members are symmetrically arranged on the outside of each group of the connecting rods, and the fixing members include protrusions and fastening bolts. The protrusions are welded on the outside of the connecting rods, and the protrusions are fixedly connected to the Z-shaped door via fastening bolts.

[0011] By adopting the above technical solution, the installation stability between the Z-shaped door and the connecting rod can be increased, and the Z-shaped door can be easily disassembled.

[0012] Preferably, an observation window is installed on the outer surface of the bottom end of the Z-shaped door, and a handle is fixedly provided on the outer surface of the observation window.

[0013] By adopting the above technical solution, it is convenient to observe the interior without opening the Z-shaped door.

[0014] Preferably, the Z-shaped door includes a plurality of groups of door panels, and two ends of the plurality of groups of door panels are hinged to each other.

[0015] By adopting the above technical solution, the Z-shaped door uses the principle of a folding door to open and close, and when the Z-shaped door is closed, the connection between the door panels is tightly connected.

[0016] Preferably, the three groups of electrodes, the three groups of large slopes and the three groups of small slopes are all arranged in the shape of regular triangles on the closed furnace cover body, and the three groups of large slopes and the three groups of small slopes are arranged at intervals from each other.

[0017] By adopting the above technical solution, the stability of the closed furnace cover structure is increased.

[0018] In summary, the utility model mainly has the following beneficial effects:

[0019] First, the utility model provides three Z-shaped doors on the three small material surfaces of the closed furnace cover. After the electrode is broken, the broken electrode can be easily taken out by opening the Z-shaped doors at the corresponding positions, thereby facilitating replacement and maintenance of the electrode and avoiding the situation where the hot furnace is shut down for a long time.

[0020] Second, the utility model provides the first fender and the second fender, and after the Z-shaped door is closed, the connection between the Z-shaped door and the installation opening can be sealed by filling the sealed groove with refractory mud, thereby increasing the airtightness;

[0021] Thirdly, the utility model can conveniently open or close the Z-shaped door through the hinge assembly, and can conveniently disassemble and assemble the Z-shaped door through the provided fixing parts, so as to facilitate the replacement and maintenance of the Z-shaped door. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the enclosed furnace cover of the utility model;

[0023] Figure 2 This utility model Figure 1 Enlarged view of point A in the middle;

[0024] Figure 3 This utility model Figure 2 Enlarged view of point B in the middle;

[0025] Figure 4 It is a schematic diagram of the structure when the Z-shaped door of the utility model is partially opened;

[0026] Figure 5 It is a structural schematic diagram of the utility model when the Z-shaped door is partially closed.

[0027] Figure numerals: 1. Sealed furnace cover body; 2. Electrode; 3. Large slope; 4. Small slope; 5. Mounting port; 6. Z-shaped door; 7. Hinge assembly; 71. Fixing block; 72. Connecting rod; 73. Pin shaft; 74. Fixing piece; 741. Bump; 742. Fastening bolt; 8. First mudguard; 9. Second mudguard; 10. Sealed slot; 11. Observation window; 12. Handle; 13. Door panel. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Example 1

[0030] refer to Figure 1-5A Z-shaped door for a closed furnace cover, comprising a closed furnace cover body 1, on which three groups of electrodes 2, three groups of large inclined surfaces 3 and three groups of small inclined surfaces 4 are arranged, characterized in that: a mounting opening 5 is opened on each of the three groups of small inclined surfaces 4, a Z-shaped door 6 is movably arranged on the mounting opening 5, an outer surface of one end of the Z-shaped door 6 is connected to the outer surface of the small inclined surface 4 through a hinge assembly 7, a first fender 8 is fixedly arranged on the outer side of the mounting opening 5 at the circular edge of the small inclined surface 4, a second fender 9 is fixedly arranged on the outer surface edge of the Z-shaped door 6 near the mounting opening 5, and a closed notch 10 for filling refractory mud is formed between the first fender 8 and the second fender 9;

[0031] The hinge assembly 7 includes two groups of fixed blocks 71, two groups of connecting rods 72, a pin shaft 73 and a fixing piece 74. The two groups of fixed blocks 71 are welded to the surface of the small slope 4. One end of the two groups of connecting rods 72 are rotatably connected to the two groups of fixed blocks 71 through the pin shaft 73, and the other end of the two groups of connecting rods 72 is connected to the outer surface of one end of the Z-shaped door 6 through the fixing piece 74.

[0032] refer to Figure 2 In order to increase the stability of the Z-shaped door 6 during installation and use, the hinge assembly 7 is provided with two groups, and the two groups of hinge assemblies 7 are respectively arranged on both sides of the Z-shaped door 6.

[0033] refer to Figure 3 In order to increase the installation stability between the Z-shaped door 6 and the connecting rod 72 and facilitate the disassembly of the Z-shaped door 6; the fixing member 74 is symmetrically arranged in two groups on the outside of each group of the connecting rod 72, and the fixing member 74 includes a protrusion 741 and a fastening bolt 742, the protrusion 741 is welded on the outside of the connecting rod 72, and the protrusion 741 is fixedly connected to the Z-shaped door 6 by the fastening bolt 742.

[0034] refer to Figure 2 In order to facilitate observation of the interior without opening the Z-shaped door 6, an observation window 11 is installed on the outer surface of the bottom end of the Z-shaped door 6, and a handle 12 is fixedly provided on the outer surface of the observation window 11.

[0035] refer to Figure 4-5 The Z-shaped door 6 includes a plurality of door panels 13, and the two ends of the plurality of door panels 13 are hinged to each other; the Z-shaped door 6 is opened and closed by using the principle of a folding door, and when the Z-shaped door 6 is closed, the joints between the door panels 13 are tightly connected.

[0036] refer to Figure 1In order to increase the stability of the closed furnace cover structure; the three groups of electrodes 2, the three groups of large inclined surfaces 3 and the three groups of small inclined surfaces 4 are all arranged on the closed furnace cover body 1 in the form of a regular triangle, and the three groups of large inclined surfaces 3 and the three groups of small inclined surfaces 4 are arranged at intervals from each other.

[0037] Principle and advantages of use:

[0038] The utility model respectively arranges three Z-shaped doors 6 on the three small material surfaces of the closed furnace cover. After the electrode 2 is broken, the broken electrode 2 can be easily taken out by opening the Z-shaped door 6 at the corresponding position, thereby facilitating the replacement and maintenance of the electrode 2 and avoiding the situation where the thermal shutdown time is very long; by arranging the first mud guard 8 and the second mud guard 9, after the Z-shaped door 6 is closed, the connection between the Z-shaped door 6 and the installation port 5 can be sealed by filling refractory mud into the closed groove 10, thereby increasing the airtightness; through the hinge assembly 7, the Z-shaped door 6 can be conveniently opened or closed, and at the same time, the fixed part 74 can be conveniently disassembled and assembled, so as to facilitate the replacement and maintenance of the Z-shaped door 6.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A Z-shaped door for a closed furnace cover, comprising a closed furnace cover body (1), wherein the closed furnace cover body (1) is provided with three groups of electrodes (2), three groups of large inclined surfaces (3) and three groups of small inclined surfaces (4), characterized in that: The three groups of small inclined surfaces (4) are all provided with mounting openings (5), and a Z-shaped door (6) is movably provided on the mounting openings (5), and the outer surface of one end of the Z-shaped door (6) is connected to the outer surface of the small inclined surface (4) through a hinge assembly (7), and a first fender (8) is fixedly provided on the outer side of the mounting opening (5) at the circular edge of the small inclined surface (4), and a second fender (9) is fixedly provided on the outer surface edge of the Z-shaped door (6) close to the mounting opening (5), and a closed notch (10) for filling refractory mud is formed between the first fender (8) and the second fender (9); The hinge assembly (7) comprises two groups of fixed blocks (71), two groups of connecting rods (72), a pin shaft (73) and a fixing piece (74); the two groups of fixed blocks (71) are welded to the surface of the small inclined surface (4); one end of the two groups of connecting rods (72) are rotatably connected to the two groups of fixed blocks (71) through the pin shaft (73); the other end of the two groups of connecting rods (72) are connected to the outer surface of one end of the Z-shaped door (6) through the fixing piece (74); the hinge assembly (7) is provided with two groups, and the two groups of hinge assemblies (7) are respectively provided on both sides of the Z-shaped door (6).

2. The Z-shaped door for a closed furnace cover according to claim 1, characterized in that: Two groups of the fixing members (74) are symmetrically arranged on the outside of each group of the connecting rods (72), and the fixing members (74) include a protrusion (741) and a fastening bolt (742). The protrusion (741) is welded on the outside of the connecting rod (72), and the protrusion (741) is fixedly connected to the Z-shaped door (6) via the fastening bolt (742).

3. The Z-shaped door for a closed furnace cover according to claim 1, characterized in that: An observation window (11) is installed on the outer surface of the bottom end of the Z-shaped door (6), and a handle (12) is fixedly provided on the outer surface of the observation window (11).

4. The Z-shaped door for a closed furnace cover according to claim 1, characterized in that: The Z-shaped door (6) comprises a plurality of groups of door panels (13), and the two ends of the plurality of groups of door panels (13) are hingedly connected to each other.

5. The Z-shaped door for a closed furnace cover according to claim 1, characterized in that: The three groups of electrodes (2), the three groups of large inclined surfaces (3) and the three groups of small inclined surfaces (4) are all arranged in the shape of an equilateral triangle on the closed furnace cover body (1), and the three groups of large inclined surfaces (3) and the three groups of small inclined surfaces (4) are arranged at intervals from each other.

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