Large-tonnage one-kiln four-line on-line TCO conductive glass production line arrangement structure

Abstract

The utility model relates to the field of glass melting furnaces and production line structures, in particular to a large-tonnage one-furnace four-line on-line TCO conductive glass production line arrangement structure which comprises a melting furnace main body, the melting furnace main body comprises a feeding pool, a melting part, a heat storage chamber and a small furnace, the feeding pool is arranged at one end of the melting part, a neck is arranged at the other end of the melting part, and the heat storage chamber is arranged at the other end of the melting part. A plurality of small furnaces are symmetrically arranged on the side walls of the two sides of the melting part, the small furnaces are connected with a heat storage chamber, a main passage is arranged at one end of the neck, and the center line of the main passage, the center line of the neck and the center line of the melting part coincide. The glass is cut under the condition that forward conveying of the glass is not stopped, and the glass at the two ends moves in a differential mode through the arrangement of the glass constant-speed conveying device and the glass acceleration conveying device, so that the glass is conveniently separated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the structure field of melting furnace, concretely to a big tonnage one kiln four line online TCO conductive glass production line arrangement structure. BACKGROUND

[0002] Among the three main types of TCO conductive glass, ITO, AZO and FTO glass, online TCO conductive glass is particularly prominent. It takes advantage of the fresh and clean surface of float glass and the high-temperature environment, and compared with offline coating technology, it can realize low energy consumption, large-scale and high-quality production. However, due to the limitation of film material thermal decomposition efficiency, the drawing speed of float glass belt cannot be too fast, which leads to the daily output of the existing TCO conductive glass production line being controlled below 600 tons, and the product production energy consumption is still high.

[0003] At present, all online TCO conductive glass production lines adopt the traditional one kiln one line structure. This structure is realized by adding a CVD coating machine in the low temperature zone of the tin bath on the basis of ordinary or super white float glass line. But this production line structure has obvious disadvantages: when producing thin products, the melting capacity of the melting furnace must be reduced to meet production needs, which further increases production energy consumption. In addition, when the production line needs to produce TCO conductive glass of different thicknesses, the glass melting process, forming process and coating process must be adjusted simultaneously, which not only takes a long time, but also leads to a decrease in process stability, which is not conducive to the stability of production, and the cutting device is not convenient to move synchronously with the glass, which is not convenient to cut, and the glass is not convenient to separate after cutting.

[0004] The drawing amount (i.e. tonnage) of the melting furnace, the drawing speed and the thickness and width of the glass have a certain relationship, i.e. under the condition of fixed drawing amount, the faster the drawing speed, the thinner and narrower the glass product, and vice versa. TCO glass needs thin glass as the original glass, and at the same time, the online coating of the coating machine limits the width of the plate, so under the condition of thin and narrow glass product, the drawing amount (i.e. tonnage) of the one kiln one line melting furnace is limited, which makes the energy consumption high.

[0005] The larger the tonnage of the melting furnace, the lower the energy consumption. Therefore, we propose a big tonnage one kiln four line online TCO conductive glass production line arrangement structure to solve the above problems. Utility model content

[0006] To solve the above technical problems, the utility model provides a big tonnage one kiln four line online TCO conductive glass production line arrangement structure.

[0007] The utility model provides a kind of big tonnage one kiln four line online TCO conductive glass production line arrangement structure, including melting furnace main body, melting furnace main body includes feeding pool, melting portion, heat storage chamber and small stove, the one end of melting portion is equipped with feeding pool, the other end of melting portion is equipped with card neck, the two sides wall of melting portion symmetrically is equipped with several small stoves, the small stove connects heat storage chamber, the one end of card neck is equipped with main passage, and the center line of main passage, the center line of card neck and the center line of melting portion coincide, the two sides of main passage are equipped with two branch cooling portions, the outlet of branch cooling portion is connected with flow channel, one end of flow channel is connected with tin groove, one end of tin groove is equipped with conveying roller assembly, annealing furnace and cutting device are sequentially equipped on conveying roller assembly.

[0008] Preferably, the cutting device includes a door-shaped frame fixed on the conveying roller assembly, a slide rod is symmetrically fixed on one side of the top of the door-shaped frame, a mounting frame is slidably connected to the slide rod, a spring is arranged between the door-shaped frame and the mounting frame on the slide rod, a gas cylinder is fixed on the mounting frame, a pressure plate is fixed to the output shaft of the gas cylinder, a linear motor is fixed to the bottom of the mounting frame, a laser cutter is mounted on the output end of the linear motor, and the branch cooling portions on the same side of the main passage have different widths.

[0009] Preferably, the conveying roller assembly includes a glass uniform speed conveying device and a glass acceleration conveying device, both the glass uniform speed conveying device and the glass acceleration conveying device include a frame and a plurality of conveying rollers rotatably connected to the inner side of the frame, a belt pulley is fixed to one end of the conveying roller, adjacent belt pulleys are drivingly connected by a belt, a conveying motor is fixed to the side wall of the frame, and the conveying motor is fixedly connected to one end of one of the conveying rollers away from the belt pulley.

[0010] Preferably, a pressing type speed controller is fixed to both ends of the linear motor, and the pressing type speed controller is electrically connected to the conveying motor of the glass acceleration conveying device.

[0011] Preferably, an insulating layer is arranged on the pool wall of the main passage and each branch cooling portion, the insulating layer arranged on the pool wall of the main passage and the branch cooling portion on the side farthest from the melting furnace main body has a thickness 1.1-2 times that of the insulating layer arranged on the pool wall of the other branch cooling portion, and the materials are the same.

[0012] Preferably, a temperature adjusting device is arranged on each branch cooling portion. If the temperature of the glass liquid is too high, normal temperature air is introduced for cooling; if the temperature of the glass liquid is too low, natural gas is introduced for heating. By finely adjusting the temperature of the glass liquid in the branch cooling portion, the glass liquid at the outlet of each branch passage is relatively stable, and the forming requirement is met.

[0013] Preferably, a coating machine is arranged in the low-temperature area of the tin groove of each branch cooling portion, each coating machine is arranged on the left side or the right side of the melting furnace, and is arranged on the opposite side or the same side.

[0014] Preferably, the bottom of the pressing plate is provided with a non-slip pad.

[0015] Preferably, the small furnace is provided with 6 pairs to 13 pairs, the branch cooling parts are arranged symmetrically with the center line of the main body of the melting furnace, the length of the branch cooling parts on the same side is different along the flow direction of the glass liquid in the main passage, the distance from the necking outlet to the outlet of each branch cooling part is set to be different, the distance length is 20-90 m, the distance between the center lines of the branch cooling parts on the same side is 15-40 m, the width of the necking is 3-6 m, and the length is 4-8 m.

[0016] The width of the main passage is 3-10 m, and the length is 18-60 m.

[0017] The width of each branch cooling part is 4-10 m, the length is 4.5-18 m, the daily drawing amount ranges from 300 to 800 tons, and the production TCD conductive glass thickness ranges from 1.0 to 8.0 mm.

[0018] Preferably, the distance between the tin tank on the same side of the main passage and the main passage is different.

[0019] Compared with the related art, the TCO conductive glass production line has the following beneficial effects:

[0020] 1. The TCO conductive glass production line has a daily drawing amount ranging from 1200 to 2400 tons, the number of small furnaces M is 6 pairs to 13 pairs, the width of each branch cooling part is 4-10 m, the length is 15-40 m, the large-tonnage melting furnace production on-line TCO conductive glass is realized, the production TCO conductive glass thickness is 1.0-8.0 mm, and the production energy consumption of the TCO conductive glass is effectively reduced.

[0021] 2. Four branch cooling parts are arranged. The passage is set to be non-equal width or equal width, and can be produced by two or three division plates according to production needs. The drawing amount of the branch cooling part is set to be non-average distribution, the stable production of the TCO conductive glass with different thicknesses in different branch cooling parts can be realized without reducing the melting amount of the melting furnace, the problems of time loss and product loss caused by the adjustment of glass thickness and film thickness in the traditional one-kiln-one-line on-line TCO glass production line are solved, and the process stability is greatly improved.

[0022] 3. The melting furnace and the production line have simple structure, good thermal balance of the glass liquid of each branch cooling part, and branch cooling part arrangement, which is beneficial to the process operation of the necking and coating unit.

[0023] 4. The passage of the one-kiln-one-line cooling part is reserved, the influence of the flow splitting on the melting and refining quality is eliminated, the glass liquid can be fully heat homogenized after melting and refining, the glass liquid flow runs more smoothly after the necking, the glass liquid only undergoes one-time large-scale turning, the generation of the turbulent flow and the erosion of the refractory material are greatly reduced, these advantages can make the melting, refining, homogenizing and optical quality of the glass liquid more secure, and the internal optical quality and mechanical strength of the TCO conductive glass product are superior to those of other design modes.

[0024] 5. The glass is cut by moving the laser cutter driven by the linear motor, the glass is cut without stopping the forward conveying of the glass, the differential movement of the glass at two ends is facilitated by the setting of the glass uniform conveying device and the glass accelerating conveying device, and the separation of the glass is facilitated.

[0025] 6. The one-kiln-four-line design can realize the production of the large-tonnage low-energy-consumption melting kiln under the premise of meeting the production of the thin glass of the small-tonnage narrow plate of each branch line. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a whole structure schematic view of the utility model;

[0027] Figure 2 It is a cutting device structure schematic view of the utility model;

[0028] Figure 3 It is a relative position schematic view of the anti-skid pad of the utility model;

[0029] Figure 4 It is a mounting rack structure schematic view of the utility model.

[0030] The reference signs in the drawing are as follows: 1, feeding pool; 2, melting part; 3, regenerative chamber; 4, small furnace; 5, necking; 6, main passage; 7, branch cooling part; 8, flow channel; 9, tin bath; 10, coating machine; 11, conveying roller way; 12, annealing kiln; 13, cutting device; 14, door-shaped frame; 15, sliding rod; 16, mounting rack; 17, air cylinder; 18, pressing plate; 19, linear motor; 20, laser cutter; 21, anti-skid pad; 22, spring; 23, glass accelerating conveying device; 24, frame; 25, conveying roller; 26, belt pulley; 27, belt; 28, glass uniform conveying device; 29, conveying motor; 30, pressing type speed controller. DETAILED DESCRIPTION

[0031] The utility model will be further described in combination with the drawings and embodiments.

[0032] Please refer to Figures 1-4The application discloses a large-tonnage one-kiln four-line on-line TCO conductive glass production line arrangement structure, and a core component of the arrangement structure is a main body of a melting furnace. The main body of the melting furnace is carefully designed and comprises a feeding pool 1, a melting part 2, a heat storage chamber 3 and small furnaces 4 and other key components. Specifically, one end of the melting part 2 is connected with the feeding pool 1, and is used for feeding raw materials and preliminary melting; and the other end is connected with a neck 5, thereby forming a transition area of molten glass liquid. A plurality of small furnaces 4 are symmetrically and uniformly arranged on the side walls of the melting part 2, and the small furnaces 4 are connected with the heat storage chamber 3 through carefully designed channels, thereby realizing efficient heat energy recovery and utilization.

[0033] One end of the neck 5 naturally extends out of a main passage 6, and this design cleverly ensures that the center line of the main passage 6, the center line of the neck 5 and the center line of the melting part 2 perfectly coincide, thereby optimizing the flow path of the molten glass liquid. Two branch cooling parts 7 are also carefully arranged on both sides of the main passage 6, the outlets of the branch cooling parts 7 are smoothly connected with flow channels 8, and one end of the flow channels 8 is connected with a tin bath 9, thereby forming a complete molten glass liquid conveying and forming system.

[0034] One end of the tin bath 9 is provided with a conveying roller assembly 11, and the conveying roller assembly 11 is sequentially provided with an annealing furnace 12 and a cutting device 13.

[0035] The cutting device 13 comprises a door-shaped frame 14 fixed on the conveying roller assembly 11, symmetrically fixed sliding rods 15 are arranged on one side top of the door-shaped frame 14, a mounting frame 16 is slidably connected on the sliding rods 15, springs 22 are arranged between the door-shaped frame 14 and the mounting frame 16 on the sliding rods 15, a gas cylinder 17 is fixed on the mounting frame 16, a pressing plate 18 is fixed on an output shaft of the gas cylinder 17, a linear motor 19 is fixed on the bottom of the mounting frame 16, a laser cutter 20 is mounted on an output end of the linear motor 19, and the branch cooling parts 7 on the same side of the main passage 6 are different in width. The pressing plate 18 and an antiskid pad 21 are driven downward by the gas cylinder 17, so that the antiskid pad 21 is in contact with the glass. With the continuous conveying of the glass, the mounting frame 16 moves towards the door-shaped frame 14 synchronously with the glass, the laser cutter 20 is driven to move by the linear motor 19, the glass is cut, the glass is cut without stopping conveying, and the springs 22 can automatically reset.

[0036] The conveying roller assembly 11 comprises a glass uniform conveying device 28 and a glass accelerating conveying device 23, both of which comprise a frame 24 and a plurality of conveying rollers 25 rotatably connected inside the frame 24, one end of the conveying roller 25 is fixed with a belt pulley 26, adjacent belt pulleys 26 are drivingly connected through a belt 27, the side wall of the frame 24 is fixed with a conveying motor 29, and the conveying motor 29 is fixedly connected with one end of the conveying roller 25 away from the belt pulley 26.

[0037] The linear motor 19 is fixed with a pressing speed controller 30 at both ends, and the pressing speed controller 30 is electrically connected with the conveying motor 29 of the glass accelerating conveying device 23.

[0038] After cutting, the output end of the linear motor 19 contacts one of the pressing speed controllers 30, and the conveying motor 29 of the glass accelerating conveying device 23 is controlled to rotate at high speed, so that the glass on the glass uniform conveying device 28 is separated from the cut glass on the glass accelerating conveying device 23,

[0039] It is emphasized that the rotating speeds of the conveying motor 29 of the glass uniform conveying device 28 and the conveying motor 29 of the glass accelerating conveying device 23 are the same before cutting the glass, the glass uniform conveying device 28 and the linear motor 19 are controlled by independent controllers, after the laser cutter 20 finishes cutting, the linear motor 19 moves reversely to reset, so that the output end of the linear motor 19 contacts the pressing speed controller 30 at the other end, and the rotating speeds of the conveying motor 29 of the glass uniform conveying device 22 and the conveying motor 29 of the glass accelerating conveying device 23 are the same.

[0040] It is worth noting that the widths of the branch cooling parts 7 on the same side of the main passage 6 are not designed to be equal, and such differentiated design makes the furnace flexible to adapt to the production needs of different types of glass. At the same time, the distance between the tin bath 9 on the same side of the main passage 6 and the main passage 6 is also carefully adjusted, which is convenient for workers' daily operation and improves the production efficiency.

[0041] The small furnace 4 is provided with 6-13 pairs, the branch cooling parts 7 are arranged symmetrically with the center line of the main body of the furnace, the lengths of the branch cooling parts 7 on the same side are different along the flow direction of the glass liquid in the main passage 6, the distances from the outlet of the necking part 5 to the outlet of each branch cooling part 7 are designed to be unequal, and the distance length is 20-90 m. The center line distance between the branch cooling parts 7 on the same side is 15-40 m.

[0042] In the setting of the small furnace 4, the melting furnace structure adopts 6 pairs to 13 pairs of small furnace configuration, which not only meets the production demand of large tonnage melting furnace (drawing quantity 1200-2400t / day), but also effectively reduces the production energy consumption of TCO conductive glass and improves the overall economic benefit.

[0043] The width of the neck 5 is 3-6m, and the length is 4-8m;

[0044] The width of the main passage 6 is 3-10m, and the length is 18-60m;

[0045] The width of each branch cooling part 7 is 4-10m, the length is 4.5-18m, the daily drawing quantity ranges from 300 to 800 tons, and the production TCD conductive glass thickness ranges from 1.0 to 8.0mm.

[0046] In order to ensure the temperature stability of the molten glass liquid, the pool wall of the passage 6 and each branch cooling part 7 is provided with a high-efficiency heat preservation layer. In particular, the thickness of the heat preservation layer of the pool wall of the main passage 6 and the branch cooling part 7 farthest away from the main body of the melting furnace is 1.1-2 times the thickness of the heat preservation layer of the other pool walls, and the material of all the heat preservation layers is the same. Such a design enables the glass liquid to maintain temperature consistency during flow, thereby ensuring the excellent quality of the product.

[0047] In addition, each branch cooling part 7 is equipped with an advanced temperature adjusting device. When the temperature of the glass liquid is detected to be too high, the system will automatically introduce normal temperature air for cooling; and when the temperature is too low, natural gas combustion will be introduced for heating. This fine temperature adjustment method ensures that the temperature of the glass liquid at the outlet of each branch passage 6 remains stable, thereby meeting the strict forming requirements.

[0048] Finally, a coating machine 10 is carefully arranged in the low-temperature area of the tin bath 9 of each branch cooling part 7, which is used for online plating of a TCO conductive film layer on the glass surface. These coating machines 10 can be flexibly placed on the left side or the right side of the melting furnace according to production needs, which can be arranged on the opposite side to optimize the production process, or arranged on the same side to facilitate centralized management. Such a design can complete the entire process of melting, forming, plating, annealing and cutting of the TCO conductive glass product at one time, making the entire melting furnace structure more flexible and efficient, and meeting the needs of different production processes.

[0049] The above only describes the embodiments of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process conversion using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the present application.

Claims

1. A large-tonnage one-kiln four-line online TCO conductive glass production line layout structure, characterized by: The invention comprises a melting furnace body, which comprises a feeding pool (1), a melting part (2), a heat storage chamber (3) and a small furnace (4). The feeding pool (1) is provided at one end of the melting part (2), and a neck (5) is provided at the other end of the melting part (2). A plurality of small furnaces (4) are symmetrically arranged on the side walls of the melting part (2), and the small furnaces (4) are connected to the heat storage chamber (3). A main passage (6) is provided at one end of the neck (5), and the center lines of the main passage (6), the neck (5) and the melting part (2) coincide. Two branch cooling parts (7) are provided on both sides of the main passage (6). The outlet of the branch cooling part (7) is connected to a flow channel (8), one end of the flow channel (8) is connected to a tin trough (9), and one end of the tin trough (9) is provided with a conveying roller assembly (11). An annealing furnace (12) and a cutting device (13) are sequentially provided on the conveying roller assembly (11).

2. The large-tonnage one-kiln four-line online TCO conductive glass production line layout structure according to claim 1 is characterized in that: The cutting device (13) includes a portal frame (14) fixed on the conveying roller assembly (11), a sliding rod (15) is symmetrically fixed on the top of one side of the portal frame (14), a mounting frame (16) is slidably connected to the sliding rod (15), a spring (22) is provided on the sliding rod (15) between the portal frame (14) and the mounting frame (16), a cylinder (17) is fixed on the mounting frame (16), a pressure plate (18) is fixed to the output shaft of the cylinder (17), a linear motor (19) is fixed at the bottom of the mounting frame (16), a laser cutter (20) is installed at the output end of the linear motor (19), and the widths of the branch cooling parts (7) on the same side of the main passage (6) are different.

3. The large-tonnage one-kiln four-line online TCO conductive glass production line layout structure according to claim 2 is characterized in that: The conveying roller assembly (11) includes a glass uniform speed conveying device (28) and a glass accelerated conveying device (23). The glass uniform speed conveying device (28) and the glass accelerated conveying device (23) both include a frame (24) and a plurality of conveying rollers (25) rotatably connected to the inner side of the frame (24). A pulley (26) is fixed to one end of the conveying roller (25), and adjacent pulleys (26) are connected to each other by a belt (27). A conveying motor (29) is fixed to the side wall of the frame (24), and the conveying motor (29) is fixedly connected to one end of one of the conveying rollers (25) away from the pulley (26).

4. The large-tonnage one-kiln four-line online TCO conductive glass production line layout structure according to claim 3 is characterized in that: A pressing speed controller (30) is fixed at both ends of the linear motor (19), and the pressing speed controller (30) is electrically connected to the conveying motor (29) of the glass accelerating conveying device (23).

5. The large-tonnage one-kiln four-line online TCO conductive glass production line layout structure according to claim 1 is characterized in that: The passage (6) and the pool wall of each branch cooling part (7) are provided with an insulation layer. The thickness of the insulation layer provided on the pool wall of the main passage (6) and the branch cooling part (7) on the side farthest from the melting furnace body is 1.1 to 2 times the thickness of the insulation layer of other pool walls, and the material is the same.

6. The large-tonnage one-kiln four-line online TCO conductive glass production line layout structure according to claim 1, characterized in that: Each branch cooling section (7) is provided with a temperature regulating device. If the temperature of the molten glass is too high, air at room temperature is introduced for cooling; if the temperature of the molten glass is too low, natural gas is introduced for heating. By finely regulating the temperature of the molten glass in the branch cooling section (7), the molten glass at the outlet of each branch passage (6) is relatively stable, meeting the forming requirements.

7. The large-tonnage one-kiln four-line online TCO conductive glass production line layout structure according to claim 1, characterized in that: A coating machine (10) is arranged in the low temperature zone of the tin bath (9) of each branch cooling part (7), and each coating machine (10) is arranged on the left side or the right side of the melting furnace, on the different sides or on the same side.

8. The large-tonnage one-kiln four-line online TCO conductive glass production line layout structure according to claim 2, characterized in that: An anti-slip pad (21) is provided at the bottom of the pressing plate (18).

9. The large-tonnage one-kiln four-line online TCO conductive glass production line layout structure according to claim 1, characterized in that: The small furnace (4) is provided with 6 to 13 pairs of branch cooling parts (7), the branch cooling parts (7) are arranged symmetrically with respect to the center line of the melting furnace body, and the lengths of the branch cooling parts (7) on the same side are different along the flow direction of the glass liquid in the main passage (6), the distances from the outlet of the neck (5) to the outlets of the branch cooling parts (7) are set to be unequal, the distance length is 20 to 90 m, and the center line spacing of the branch cooling parts (7) on the same side is 15 to 40 m; The width of the neck (5) is 3 to 6 m, and the length is 4 to 8 m; The width of the main passage (6) is 3 to 10 m, and the length is 18 to 60 m; The width of each branch cooling part (7) is 4-10m, the length is 4.5-18m, the daily pulling capacity ranges from 300 to 800 tons, and the thickness range of the produced TCD conductive glass is from 1.0 to 8.0mm.

10. The large-tonnage one-kiln four-line online TCO conductive glass production line layout structure according to claim 1, characterized in that: The distances between the tin baths (9) on the same side of the main passage (6) and the main passage (6) are different.

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