Intercepting flashboard for overflow port of glass melting furnace

Abstract

The invention discloses a glass melting furnace overflow port closure flashboard which is located at the position of a glass melting furnace overflow port and comprises flashboard petals and a first connecting piece. The multiple flashboard petals are flush with one another and placed in a row, the adjacent flashboard petals are connected in an embedded mode and connected through first connecting pieces, so that expansion gaps are reserved in the embedded connection positions in the length direction of the flashboard petals, and the embedded connection positions are provided with at least one sealing face attached to one another in the width direction of the flashboard petals. The closure flashboard has the beneficial effects that the restrictive thought that in the traditional technology, the closure flashboard is of an integral structure is broken through, the multiple flashboard petals are combined and then mutually embedded in a matched mode, every two adjacent flashboard petals can be mutually spliced to form the integral closure flashboard, and the closure flashboard can be formed from the source; and the problem of aggravated deformation caused by thermal conduction of the integral intercepting flashboard and overlarge width of the intercepting flashboard is avoided.

Description

Technical Field

[0001] This invention relates to the field of glass melting furnace technology, and more particularly to a flow-stopping gate at the overflow port of a glass melting furnace. Background Technology

[0002] The flow cut-off gate is located at the overflow port of the glass melting furnace. Its main function is to shut off the molten glass in an emergency and block the downward flow of the molten glass.

[0003] Existing flow control gates are usually integral. Due to the harsh working environment of the flow control gate, the lower part of the gate is immersed in the molten glass (temperature greater than 1000 degrees Celsius), and there is a huge temperature difference between the front and rear sides (the front side is in contact with the internal flame of the kiln, while the rear side is in an open external environment). This results in severely uneven heating of the flow control gate. On the other hand, as the width of the overflow port increases, the width of the gate also increases, and the thermal deformation of the integral flow control gate also increases, exacerbating the production safety risks caused by leakage from the gate.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of the invention and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0005] The technical problem to be solved by this invention is to solve the problem of uneven heating of integral flow-stopping gates and leakage caused by thermal deformation.

[0006] The present invention solves the above-mentioned technical problems through the following technical means: The present invention claims to protect the overflow gate of the glass melting furnace, located at the overflow position of the glass melting furnace, including gate petals and a first connecting member; there are a number of gate petals, which are placed in a row with each other flat, and adjacent gate petals are interlocked with each other and connected to each other by the first connecting member, such that an expansion gap is reserved at the interlocking part along the length direction of the gate petal, and the interlocking part has at least one sealing surface that fits with each other along the width direction of the gate petal.

[0007] Breaking away from the traditional limitation of the dam being a monolithic structure, this technology combines several dam segments and interlocks them, allowing adjacent dam segments to be joined together to form a monolithic dam. This avoids the problems of heat conduction caused by monolithic dams and the increased deformation due to excessive dam width.

[0008] Preferably, L-shaped blocks that are symmetrically protruding and interlocked between adjacent gate flaps form an interlocking point, and the interlocking surface of the L-shaped blocks that are parallel to the long side of the gate flaps is a sealing surface.

[0009] Preferably, the convex and concave structures that interlock between adjacent gate flaps form the interlocking point, and the interlocking surfaces of the convex and concave structures that are parallel to the long side of the gate flaps are the sealing surfaces.

[0010] The shape of the interlocking is not limited, as long as at least one sealing surface is formed between them along the width direction of the throttling gate and there is an expansion margin along the length direction of the throttling gate.

[0011] Preferably, the first connecting member includes a connecting plate and a bolt. Connecting plates are provided on both sides of the gate flap at the engagement point. The gate flap passes through the first through hole. The bolt passes through either connecting plate and the first through hole, and the bolt can slide radially along the first through hole. The bolt is threadedly tightened with another connecting plate, and the sealing surfaces are in close contact with each other.

[0012] At this point, the connecting plate and bolts do not simply serve an installation function, but rather provide rigid fixation in the width direction of the gate, ensuring that the sealing surfaces are tightly fitted together. The gate seals along its width, guaranteeing a high degree of sealing performance. Furthermore, the gate supports elastic release in the length direction, with expansion gaps reserved between the expansion surfaces, allowing for a certain expansion margin along its length.

[0013] Preferably, the bolt diameter is smaller than the diameter of the first through hole.

[0014] Preferably, the first through hole is an oblong hole, and the length of the oblong hole is parallel to the length direction of the gate flap.

[0015] All of these measures ensure that there is an adjustable margin between the bolt and the first through hole, so that the dam has a certain expansion margin along its length.

[0016] Preferably, the gate flap is made of chromium-nickel alloy.

[0017] This material possesses excellent high-temperature strength and creep resistance, effectively resisting long-term thermal shock from the high-temperature environment of molten glass. This significantly suppresses the deformation of the flow-stopping gate caused by thermal load, ensuring stability and reliability under harsh working conditions.

[0018] Preferably, it also includes a fixing rod, a crossbeam, and a second connector. One end of the fixing rod is provided on the gate flap, and the other end of the fixing rod passes through the crossbeam and is installed through the second connector.

[0019] Preferably, the second connector includes at least two second nuts, a plurality of second through holes through the crossbeam, a threaded end of the fixing rod, the other end of the fixing rod passing through the second through holes through the crossbeam, and the second nuts engaging on the fixing rods located on both sides of the crossbeam.

[0020] It only fixes the gate flap to the crossbeam; and the distance between the gate flap and the crossbeam can be adjusted by tightening the second nut and the fixing rod.

[0021] Preferably, it also includes lifting rings, with lifting rings installed on the crossbeam.

[0022] The lifting rings facilitate the up-and-down movement of the lifting equipment's operating gate.

[0023] The advantages of this invention are that by combining rigidity and flexibility, it not only ensures the sealing performance of the throttling gate, but also avoids the problems of bending of the throttling gate, damage to the first connecting part, or sealing failure caused by huge internal stress when heated and expanded in the harsh environment of glass melting furnace. It can be said to be very ingenious and achieves two goals at once. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the overflow gate of the glass melting furnace in an embodiment of the present invention; Figure 2 yes Figure 1 A cross-sectional diagram from the AA perspective; Figure 3 yes Figure 2 A magnified view of a portion of the image; 1. Gate flap; 10. L-shaped block; 101. Sealing surface; 102. Expansion surface; 11. First through hole; 2. Connecting plate; 3. Bolt; 5. Fixing rod; 6. Crossbeam; 7. Second nut; 8. Lifting ring. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] See Figure 1 and Figure 2 This embodiment requires a protective gate for the overflow outlet of the glass melting furnace, located at the overflow outlet of the glass melting furnace, including a gate flap 1, a connecting plate 2, a bolt 3, a fixing rod 5, a crossbeam 6, a second nut 7, and a lifting ring 8.

[0027] See Figure 3 There are several gate flaps 1, which are placed horizontally in a row. Between adjacent gate flaps 1, there are L-shaped blocks 10 that are symmetrical and interlocked. The interlocking surface of the L-shaped block 10 parallel to the long side of the gate flap 1 is defined as the sealing surface 101, and the interlocking surface of the L-shaped block 10 parallel to the wide side of the gate flap 1 is defined as the expansion surface 102.

[0028] Connecting plates 2 are provided on both sides of the gate flap 1 at the joint. The gate flap 1 passes through the first through hole 11. After the bolt 3 passes through either connecting plate 2 and the first through hole 11, the bolt 3 is threadedly tightened with the other connecting plate. The sealing surfaces 101 are in close contact with each other, so that the flow-blocking gate seals along its width direction and realizes the flow-blocking function.

[0029] The diameter of bolt 3 is smaller than the diameter of the first through hole 11, and an expansion gap is reserved between the expansion surfaces 102 so that the dam has a certain expansion margin along its length.

[0030] It is not limited to the diameter of bolt 3 being smaller than the diameter of the first through hole 11. Alternatively, the first through hole 11 can be a waist-shaped hole with the length of the waist-shaped hole parallel to the length direction of the gate flap 1.

[0031] It is worth mentioning that it is not limited to the L-shaped block 10, but can also be a "convex" shaped plate that is embedded with the "concave" shaped plate. It is only necessary to ensure that at least one sealing surface 101 is formed between them along the width direction of the flow cut-off gate and that there is an expansion margin along the length direction of the flow cut-off gate.

[0032] To enhance the structural stability of the flow-stopping gate, its gate segment 1 is preferably made of a high-temperature resistant chromium-nickel alloy. This material possesses excellent high-temperature strength and creep resistance, effectively resisting long-term thermal shock from the high-temperature environment of molten glass, thereby significantly suppressing the deformation of the flow-stopping gate caused by thermal load and ensuring stability and reliability under harsh operating conditions.

[0033] Each gate flap 1 has a fixing rod 5 at one end, and the other end of the fixing rod 5 is threaded. The other end of the fixing rod 5 passes through a second through hole in the crossbeam 6. The crossbeam 6 supports the flow-stopping gate. Second nuts 7 are engaged on the fixing rods 5 on both sides of the crossbeam 6. This not only secures the gate flap 1 to the crossbeam 6, but also allows adjustment of the distance between the gate flap 1 and the crossbeam 6 by tightening the second nuts 7 and the fixing rods 5. A lifting ring 8 is provided on the crossbeam 6, facilitating the lifting of equipment and the up-and-down movement of the gate.

[0034] In this embodiment, firstly, the limiting thinking of the traditional technology that the dam is a monolithic structure is broken. By combining several dam petals 1 and then cooperating with symmetrical and interlocking L-shaped blocks 10, two adjacent dam petals 1 can be spliced ​​together to form a monolithic dam. This avoids the problems of heat conduction caused by monolithic dams and the aggravated deformation caused by excessive width of the dam from the source.

[0035] Secondly, in conjunction with the connecting plate 2 and bolt 3, the connecting plate 2 and bolt 3 do not simply serve an installation function, but rather provide rigid fixation in the width direction of the throttling gate, ensuring that the sealing surfaces 101 are tightly pressed together. The throttling gate seals along its width direction, guaranteeing a high degree of sealing performance. Moreover, the throttling gate supports elastic release in its length direction, with an expansion gap reserved between the expansion surfaces 102, allowing the throttling gate to have a certain expansion margin along its length. Through a combination of rigidity and flexibility, the sealing performance of the throttling gate is guaranteed, while avoiding the problems of bending of the throttling gate, damage to the first connecting component, or sealing failure caused by huge internal stress during thermal expansion in the harsh environment of a glass melting furnace. It can be said to be very ingenious, achieving two goals at once.

[0036] Furthermore, the gate valve 1 is preferably made of high-temperature resistant chromium-nickel alloy. This material has excellent high-temperature strength and creep resistance, which can effectively resist the long-term thermal shock of the high-temperature environment of molten glass, thereby significantly suppressing the deformation of the throttling gate valve caused by thermal load and ensuring stability and reliability under harsh working conditions.

[0037] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A flow-stopping gate for the overflow outlet of a glass melting furnace, located at the overflow outlet of the glass melting furnace, characterized in that, It includes a gate flap (1) and a first connector; there are several gate flaps (1), which are placed in a row with each other flat, and adjacent gate flaps (1) are interlocked with each other and connected to each other by the first connector, so that an expansion gap is reserved at the interlocking point along the length direction of the gate flap (1), and the interlocking point has at least one sealing surface (101) that fits with each other along the width direction of the gate flap (1).

2. The overflow gate of the glass melting furnace according to claim 1, characterized in that, A symmetrical and interlocking L-shaped blocks (10) are protruding between adjacent gate flaps (1) to form an interlocking point. The interlocking surface of the L-shaped blocks (10) parallel to the long side of the gate flaps (1) is a sealing surface (101).

3. The overflow gate of the glass melting furnace according to claim 1, characterized in that, The convex and concave structures formed between adjacent gate flaps (1) constitute the interlocking point, and the interlocking surface of the convex and concave structures parallel to the long side of the gate flap (1) is the sealing surface (101).

4. The overflow gate of the glass melting furnace according to claim 1, characterized in that, The first connector includes a connecting plate (2) and a bolt (3). The gate flap (1) at the fitting point is provided with connecting plates (2) on both sides. The gate flap (1) passes through the first through hole (11). The bolt (3) passes through either the connecting plate (2) and the first through hole (11). The bolt (3) can slide radially along the first through hole (11). The bolt (3) is threadedly tightened with another connecting plate. The sealing surfaces (101) are in close contact with each other.

5. The overflow shut-off gate of the glass melting furnace according to claim 4, characterized in that, The diameter of the bolt (3) is smaller than the diameter of the first through hole (11).

6. The overflow gate of the glass melting furnace according to claim 4, characterized in that, The first through hole (11) is a waist-shaped hole, and the length of the waist-shaped hole is parallel to the length direction of the gate flap (1).

7. The overflow gate of the glass melting furnace according to claim 1, characterized in that, The gate flap (1) is made of chromium-nickel alloy.

8. The overflow gate of the glass melting furnace according to claim 1, characterized in that, It also includes a fixing rod (5), a crossbeam (6), and a second connector. The gate flap (1) is provided with one end of the fixing rod (5), and the other end of the fixing rod (5) passes through the crossbeam (6) and is installed through the second connector.

9. The overflow gate of the glass melting furnace according to claim 8, characterized in that, The second connector includes at least two second nuts (7), several second through holes through the crossbeam (6), the other end of the fixing rod (5) is threaded, the other end of the fixing rod (5) passes through the second through hole through the crossbeam (6), and the second nuts (7) are engaged on the fixing rods (5) located on both sides of the crossbeam (6).

10. The overflow gate of the glass melting furnace according to claim 8, characterized in that, It also includes lifting rings (8), with lifting rings (8) installed on the crossbeam (6).

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