Regenerator purging operation opening and closing device for float glass furnace

Abstract

The utility model discloses a kind of float glass melting furnace regenerator dredging operation opening and closing devices, including multiple melting furnace load-bearing columns, the regenerator wall between two adjacent melting furnace load-bearing columns is provided with reserved door hole, between two adjacent melting furnace load-bearing columns and in the top of reserved door hole is equipped with crossbeam, the downside of crossbeam and in the both sides of reserved door hole is respectively provided with limit rod piece, limit rod piece upper end is fixedly connected with crossbeam, lower end is fixedly connected with ground, slidingly installed with closure door between two limit rod pieces, the top of closure door is equipped with pull ring, crossbeam top is equipped with electric hoist, the steel wire rope of electric hoist extends downward and is fixedly connected with pull ring;At least one compression rod is respectively threadedly cooperated and installed on two limit rod pieces in the position corresponding to reserved door hole, when closure door and reserved door hole correspond, closure door is compressed by compression rod. It is not necessary to manually move by electric hoist to lift and drop, and it is more convenient to open and close door hole.

Description

Technical Field

[0001] This utility model relates to the field of float glass melting furnace technology, and in particular to a device for opening and closing the regenerator of float glass melting furnace. Background Technology

[0002] Currently, the float glass melting furnace used by our company has a structure similar to the melting furnace disclosed in CN115536245A. A pre-reserved doorway, essentially a slag removal door, is located below the regenerator chamber, allowing access to the regenerator chamber during maintenance. Currently, this doorway is sealed with bricks. When maintenance is needed, the bricks are removed, and after maintenance, the doorway is resealed with bricks, making the disassembly and assembly process cumbersome. Based on the actual site conditions, our technical personnel designed the opening and closing device for unblocking the regenerator chamber of the float glass melting furnace, as described in this application.

[0003] A search revealed Chinese patent document CN117902808A, published on April 19, 2024, which discloses a structure and installation method for a ash removal door in the flue of a glass melting furnace regenerator. The method includes: an outer wall brick doorway in the outer wall of the ash removal chamber within the main body of the regenerator; a door frame cast with clay refractory around the edge of the outer wall brick doorway; and a sealing door installed at the door frame. Its advantages are: by casting a door frame into the wall doorway of the main body of the regenerator or flue, combined with an inwardly inclined upper and lower sealing door, the traditional brickwork method is replaced to seal the doorway, resulting in good sealing performance. During construction, mass production using molds reduces construction time and labor costs. When ash removal is required, disassembly and restoration are quick, minimizing the impact on glass production. The upper and lower sealing doors have observation holes for quick observation of ash accumulation and timely cleaning of accumulated dust. When it is necessary to check the blockage of the heat storage chamber grid, the observation hole plug can be opened quickly without damaging the wall and making a new hole. The disadvantage is that the sealing door includes an upper sealing door and a lower sealing door. The upper sealing door and the lower sealing door can only be disassembled and installed manually. Due to the small space and the heavy weight of the upper sealing door and the lower sealing door, the disassembly and installation of the upper sealing door and the lower sealing door are still inconvenient. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a device for opening and closing the regenerator of float glass melting furnace, which is lifted and lowered by an electric winch, eliminating the need for manual handling and making the opening and closing of the door more convenient.

[0005] To achieve the aforementioned technical features, the purpose of this utility model is as follows: A float glass melting furnace regenerator cleaning and opening / closing device includes multiple furnace support columns. A pre-reserved doorway is provided on the regenerator wall between two adjacent furnace support columns. A crossbeam is installed between two adjacent furnace support columns at the top of the pre-reserved doorway. Limiting rods are respectively installed on the lower side of the crossbeam and on both sides of the pre-reserved doorway. The upper end of the limiting rod is fixedly connected to the crossbeam, and the lower end is fixedly installed to the ground. A closing door is slidably installed between the two limiting rods. A pull ring is installed on the top of the closing door. An electric winch is installed on the top of the crossbeam, and the wire rope of the electric winch extends downward and is fixedly connected to the pull ring. At least one clamping rod is threadedly installed on each of the two limiting rods at the position corresponding to the pre-reserved doorway. When the closing door corresponds to the pre-reserved doorway, the clamping rod clamps the closing door.

[0006] The limiting rod includes a first plate and a second plate, which are fixedly connected to form an L-shaped structure. The second plate has a threaded hole, and a clamping rod is screwed into the threaded hole. The closing door is located between the first plates on both sides.

[0007] Guide plates are fixed to the opposite sides of the first plate on both sides. The guide plates are located above the reserved door opening. A sliding groove is formed between the guide plates and the second plate, and the closed door can slide in the sliding groove.

[0008] The lower end of the guide plate is provided with an inclined plate, and a flared structure is formed between the inclined plate and the second plate.

[0009] A connecting beam is also provided below the crossbeam. The two ends of the connecting beam are respectively connected and fixed to the two furnace load-bearing columns on both sides. One side of the connecting beam abuts against the heat storage chamber wall, and the other side is connected and fixed to the first plate.

[0010] The furnace's load-bearing columns and beams are all made of I-beams, with a support plate installed on the top of the beams, and an electric winch mounted on the support plate.

[0011] The clamping rod includes a pressure block and a screw. One end of the screw is connected to the pressure block, and the other end is provided with a polygonal screwing part.

[0012] The enclosed door includes a shell, the interior of which is filled with heat-insulating material, and a pull ring is fixed to the top of the shell.

[0013] The housing includes an outer plate and an inner plate. The outer plate has a first horizontal edge around its perimeter, and the inner plate has a slanted edge around its perimeter. A second horizontal edge is provided at the end of the slanted edge away from the inner plate. A longitudinal edge is provided at the end of the second horizontal edge away from the slanted edge. The longitudinal edge is fixed to the inner side of the first horizontal edge. An annular groove is formed between the second horizontal edge, the longitudinal edge, and the first horizontal edge. A high-temperature resistant sealing strip is installed in the annular groove.

[0014] The first plate has a limiting hole on the upper side of the reserved door opening, and the limiting hole is used to insert a limiting pin.

[0015] Compared with the prior art, the present utility model adopting the above technical solution has the following characteristics: 1. This utility model uses an electric winch to lift or lower a closed door via a wire rope. A crossbeam is used to mount the electric winch and limit rods. The limit rods guide and limit the closed door, and are also used to screw on a clamping rod. When the closed door is aligned with the pre-drilled doorway, the clamping rods hold the closed door against the outside of the doorway. This utility model uses an electric winch for lifting and lowering, eliminating the need for manual handling, making the opening and closing of the doorway more convenient.

[0016] 2. In this utility model, guide plates are welded to opposite sides of the first plates on both sides. The guide plates are located above the reserved door opening, and a sliding groove is formed between the guide plates and the second plates, allowing the closed door to slide within the groove. During the upward lifting of the closed door, it slides into the sliding groove of the limiting rods on both sides, preventing the closed door from shaking. A limiting hole is provided on the first plate above the reserved door opening, for inserting a limiting pin. When the closed door is lifted above the reserved door opening and exceeds the height of the limiting hole, the limiting pin is inserted into the limiting hole to prevent the closed door from accidentally falling and causing a safety accident, thus improving its safety. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0018] Figure 1 This is a schematic diagram of the main structure of this utility model.

[0019] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure of AA.

[0020] Figure 3 for Figure 1 A schematic diagram of the cross-sectional structure of BB.

[0021] Figure 4 This is a diagram showing the state of the closed door of this utility model when it is open.

[0022] Figure 5 This is a perspective view of the closed door of this utility model.

[0023] Figure 6 This is a schematic diagram of the cross-sectional structure of the closed door of this utility model.

[0024] Figure 7 This is a three-dimensional structural diagram of the clamping rod of this utility model.

[0025] Figure label: 1. Heat storage chamber wall; 2. Reserved doorway; 3. Load-bearing column of melting furnace; 4. Connecting beam; 5. Horizontal beam; 10 Electric winch, 11 Wire rope, 12 Wire rope clip, 13 Support plate; Enclosed door 20, shell 21, outer panel 211, first horizontal side 2111, inner panel 212, inclined side 2121, second horizontal side 2122, longitudinal side 2223, annular groove 2124, heat insulation material 22, pull ring 23, sealing strip 24; Limiting rod 30, first plate 301, second plate 302, limiting hole 31, guide plate 32, slide groove 33, inclined plate 34; Clamping rod 40, clamping block 401, screw 402, tightening part 403; Limit pin 50. Detailed Implementation

[0026] 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.

[0027] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0028] See Figure 1-7A device for opening and closing a regenerator chamber for float glass melting furnace includes multiple furnace support columns 3. A pre-reserved doorway 2 is provided on the regenerator chamber wall 1 between two adjacent furnace support columns 3. A crossbeam 5 is installed between two adjacent furnace support columns 3 at the top of the pre-reserved doorway 2. Limiting rods 30 are respectively installed on the lower side of the crossbeam 5 and on both sides of the pre-reserved doorway 2. The upper end of the limiting rod 30 is fixedly connected to the crossbeam 5, and the lower end is fixedly installed to the ground. A closing door 20 is slidably installed between the two limiting rods 30. A pull ring 23 is installed on the top of the closing door 20. An electric winch 10 is installed on the top of the crossbeam 5. The wire rope 11 of the electric winch 10 extends downward and is fixedly connected to the pull ring 23. Two clamping rods 40 are threadedly installed on the two limiting rods 30 at the positions corresponding to the pre-reserved doorway 2. When the closing door 20 corresponds to the pre-reserved doorway 2, the clamping rods 40 clamp the closing door 20.

[0029] The electric winch 10 of this invention uses a steel wire rope 11 to lift the closed door 20 or the lower closed door 20. A crossbeam 5 is used to install the electric winch 10 and a limiting rod 30. The limiting rod 30 guides and limits the closed door 20 and is used to screw on a clamping rod 40. When the closed door 20 is aligned with the reserved door opening 2, the clamping rod 40 holds the closed door 20 against the outside of the reserved door opening 2. This invention uses the electric winch 10 for lifting and lowering, eliminating the need for manual handling, and making the opening and closing of the door opening 2 more convenient.

[0030] It should be noted that the furnace support column 3 is an existing structure of the float glass melting furnace. This utility model utilizes the existing structure to achieve the installation and operation of the closed door 20. The two ends of the crossbeam 5 are welded to the furnace support columns 3 on both sides. The upper end of the limiting rod 30 is welded to the crossbeam 5. The lower end of the limiting rod 30 can be pre-embedded in concrete, or a plate can be installed at the lower end of the limiting rod 30, with anchor bolts installed at corresponding positions on the ground. The mounting plate and anchor bolts are then fixed in place. Additionally, three or four clamping rods 40 can be installed on each limiting rod 30.

[0031] See Figure 1 The lower end of the wire rope 11 is folded back after passing through the pull ring 23 and fixed by the wire rope clamp 12.

[0032] See Figure 3 The limiting rod 30 includes a first plate 301 and a second plate 302, which are fixedly connected to form an L-shaped structure. A threaded hole is provided on the second plate 302, and a clamping rod 40 is screwed into the threaded hole. The closed door 20 is located between the two first plates 301. Through this structure, the closed door 20 is guided and limited in the left and right directions, and also guided and limited on the side of the closed door 20 away from the heat storage chamber wall 1.

[0033] Further, see Figure 2 Guide plates 32 are welded to opposite sides of the first plates 301 on both sides. The guide plates 32 are located above the reserved door opening 2, and a groove 33 is formed between the guide plates 32 and the second plates 302, allowing the closed door 20 to slide within the groove 33. During the upward lifting of the closed door 20, the closed door 20 slides into the groove 33 of the limiting rods 30 on both sides to prevent the closed door 20 from shaking.

[0034] The lower end of the guide plate 32 is provided with an inclined plate 34, and the inclined plate 34 and the second plate 302 form a flared structure so that the closed door 20 can enter the slide groove 33.

[0035] See Figure 1 , 2 Below the crossbeam 5, there is also a connecting beam 4. The two ends of the connecting beam 4 are respectively connected and fixed to the two furnace load-bearing columns 3 on both sides. One side of the connecting beam 4 abuts against the heat storage chamber wall 1, and the other side is connected and fixed to the first plate 301. The crossbeam 4 is actually the structure of the float glass melting furnace itself. In this case, the first plate 301 is welded to the crossbeam 4, which plays a role in structurally strengthening the limiting rod 30.

[0036] Further, see Figure 2 , 4 The first plate 301 has a limiting hole 31 on the upper side of the reserved doorway 2, through which a limiting pin 50 is inserted. When the closed door 20 is raised above the reserved doorway 2 and exceeds the height of the limiting hole 31, the limiting pin 50 is inserted into the limiting hole 31 to prevent the closed door 20 from accidentally falling and causing a safety accident, thus improving safety. The limiting pin 50 can adopt a structure similar to a flat-headed pin, and the diameter of the limiting pin 50 is 15mm or more.

[0037] In this embodiment, see Figure 2 The furnace's supporting columns 3 and crossbeams 5 are both I-beams. To facilitate the installation of the electric winch 10 on the I-beam crossbeams 5, a support plate 13 is installed on the top of the crossbeams 5, and the electric winch 10 is mounted on the support plate 13. It should be noted that, in order to prevent the wire rope 11 of the electric winch 10 from interfering with the support plate 13 and the crossbeams 5, notches can be made in the support plate 13 and the crossbeams 5 to avoid the wire rope 11.

[0038] See Figure 7 The clamping rod 40 includes a clamping block 401 and a screw 402. One end of the screw 402 is connected to the clamping block 401, and the other end is provided with a polygonal tightening part 403. The screw 402 is screwed into a threaded hole on the second plate 302. The clamping block 401 is used to abut against the closed door 20. The diameter of the clamping block 401 is larger than the diameter of the screw 402 to increase the force-bearing area. The tightening part 403 has a polygonal structure so that it can be tightened with a wrench.

[0039] See Figure 5 The closed door 20 includes a shell 21, the interior of which is filled with thermal insulation material 22, and a pull ring 23 is welded to the top of the shell 21. The thermal insulation material 22 can be perlite, glass wool, or insulating concrete.

[0040] Specifically, see Figure 7 The housing 21 includes an outer plate 211 and an inner plate 212. The outer plate 211 has a first horizontal edge 2111 around its perimeter, and the inner plate 212 has a sloping edge 2121 around its perimeter. The end of the sloping edge 2121 away from the inner plate 212 is provided with a second horizontal edge 2122. The end of the second horizontal edge 2122 away from the sloping edge 2121 is provided with a longitudinal edge 2223. The longitudinal edge 2223 is fixed to the inner side of the first horizontal edge 2111. An annular groove 2124 is formed between the second horizontal edge 2122, the longitudinal edge 2223, and the first horizontal edge 2111. A high-temperature resistant sealing strip is installed in the annular groove 2124.

[0041] Combination Figure 2 The beveled edge 2121 is used to fit the door frame inside the reserved door opening 2. The beveled structure facilitates installation and disassembly. A high-temperature resistant sealing strip 24 is installed in the annular groove 2124. After the closed door 20 is installed into the reserved door opening 2, the sealing strip 24 fits into the reserved door opening 2 to seal it. In this embodiment, the sealing strip 24 is a ceramic fiber packing sealing tape.

[0042] Of course, to facilitate observation of the interior of the heat storage chamber when the closed door 20 is closed, an observation hole can be made on the closed door 20. The observation hole penetrates the outer plate 211 and the inner plate 212. A rectangular tube or a round tube is installed at the observation hole, and the two ends of the rectangular tube or round tube are welded and fixed to the outer plate 211 and the inner plate 212, respectively. The interior of the rectangular tube or round tube can then be observed.

[0043] The working principle or working process of this utility model: See Figure 1 , 2 At this time, the closed door 20 is in the closed state, the closed door 20 is aligned with the reserved door opening 2, and the closed door 20 is pressed by the clamping rod 40.

[0044] When maintenance is required, loosen all clamping rods 40, jog the electric winch 10 to lift the closed door 20. At this time, the closed door 20 will be disengaged from the reserved door opening 2. Then the electric winch 10 will rewind the wire rope 11 to lift the closed door 20 into the slide groove 33. When the closed door 20 is lifted to the upper side of the reserved door opening 2 and exceeds the height of the limit hole 31, insert the limit pin 50 into the limit hole 31. At this time, you can enter the reserved door opening 2 for maintenance.

[0045] After the maintenance is completed, pull out the limit pin 50, close the door 20 below the electric winch 10, and then turn the clamping rod 40 diagonally in sequence. Use the clamping rod 40 to push the closed door 20 against the reserved door opening 2 until the closed door 20 fits into the reserved door opening 2.

[0046] While specific embodiments of the present invention have been described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and not intended to limit the scope of the present invention. Any modifications and variations made by those skilled in the art in accordance with the spirit of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A device for opening and closing the regenerator chamber of a float glass melting furnace, comprising multiple furnace support columns (3), wherein a reserved doorway (2) is provided on the regenerator chamber wall (1) between two adjacent furnace support columns (3), characterized in that: A crossbeam (5) is installed between two adjacent furnace load-bearing columns (3) and at the top of the reserved door opening (2). Limiting rods (30) are respectively installed on the lower side of the crossbeam (5) and on both sides of the reserved door opening (2). The upper end of the limiting rod (30) is fixed to the crossbeam (5), and the lower end is fixed to the ground. A closed door (20) is slidably installed between the two limiting rods (30). A pull ring (23) is installed on the top of the closed door (20). An electric winch (10) is installed on the top of the crossbeam (5). The wire rope (11) of the electric winch (10) extends downward and is fixedly connected to the pull ring (23). At least one clamping rod (40) is threadedly installed on the two limiting rods (30) at the corresponding reserved door opening (2). When the closed door (20) corresponds to the reserved door opening (2), the closed door (20) is clamped by the clamping rod (40).

2. The float glass melting furnace regenerator unblocking and opening / closing device according to claim 1, characterized in that: The limiting rod (30) includes a first plate (301) and a second plate (302). The first plate (301) and the second plate (302) are fixedly connected to form an L-shaped structure. The second plate (302) is provided with a threaded hole, and a clamping rod (40) is screwed into the threaded hole. The closed door (20) is located between the first plates (301) on both sides.

3. The float glass melting furnace regenerator unblocking and opening / closing device according to claim 2, characterized in that: Guide plates (32) are fixed to the opposite side of the first plate (301) on both sides. The guide plates (32) are located on the upper side of the reserved door opening (2). A groove (33) is formed between the guide plates (32) and the second plate (302). The closed door (20) can slide in the groove (33).

4. The float glass melting furnace regenerator unblocking and opening / closing device according to claim 3, characterized in that: The lower end of the guide plate (32) is provided with an inclined plate (34), and a flared structure is formed between the inclined plate (34) and the second plate (302).

5. The float glass melting furnace regenerator unblocking and opening / closing device according to claim 3, characterized in that: A connecting beam (4) is also provided below the crossbeam (5). The two ends of the connecting beam (4) are respectively connected and fixed to the two furnace load-bearing columns (3) on both sides. One side of the connecting beam (4) abuts against the heat storage chamber wall (1), and the other side is connected and fixed to the first plate (301).

6. The opening and closing device for unblocking the regenerator chamber of a float glass melting furnace according to claim 1, characterized in that: The furnace load-bearing columns (3) and crossbeams (5) are both I-beams. A support plate (13) is installed on the top of the crossbeams (5), and an electric winch (10) is installed on the support plate (13).

7. The opening and closing device for unblocking the regenerator chamber of a float glass melting furnace according to claim 1, characterized in that: The clamping rod (40) includes a pressure block (401) and a screw (402). One end of the screw (402) is connected to the pressure block (401), and the other end is provided with a polygonal screwing part (403).

8. The float glass melting furnace regenerator unblocking and opening / closing device according to claim 1, characterized in that: The closed door (20) includes a shell (21), the inside of which is filled with heat insulation material (22), and a pull ring (23) is fixed to the top of the shell (21).

9. The float glass melting furnace regenerator unblocking and opening / closing device according to claim 8, characterized in that: The shell (21) includes an outer plate (211) and an inner plate (212). The outer plate (211) is provided with a first horizontal edge (2111) around its perimeter, and the inner plate (212) is provided with a sloping edge (2121) around its perimeter. A second horizontal edge (2122) is provided at the end of the sloping edge (2121) away from the inner plate (2122). A longitudinal edge (2223) is provided at the end of the second horizontal edge (2122) away from the sloping edge (2121). The longitudinal edge (2223) is fixed to the inner side of the first horizontal edge (2111). An annular groove (2124) is formed between the second horizontal edge (2122), the longitudinal edge (2223), and the first horizontal edge (2111). A high-temperature resistant sealing strip (24) is installed in the annular groove (2124).

10. The float glass melting furnace regenerator unblocking and opening / closing device according to claim 3, characterized in that: The first plate (301) has a limiting hole (31) on the upper side of the reserved door opening (2), and the limiting hole (31) is used to insert a limiting pin (50).

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