Float glass tin bath with adjustable bath bottom

Abstract

The invention discloses a pool bottom adjustable float glass tin bath which comprises a tin bath pool, a tin bath top cover, a runner control flashboard, an outlet check curtain and a lip brick, and a plurality of pool bottom adjusting units are arranged on the bottom surface of the tin bath pool in the length direction and the width direction of the tin bath pool; the tank bottom adjusting unit comprises a sliding column in sliding connection with the bottom surface of the tin bath, and the top end of the sliding column is fixedly connected with a top plate; the height of the top plates in the tin liquid can be conveniently adjusted, the top surfaces of the top plates are roughly arranged, so that the flowing speed of the tin liquid between the glass liquid and the top plates is reduced due to the resistance of the top plates, the purpose of accurately controlling the temperature of the glass liquid is achieved, and meanwhile, the height of the top plates can be simultaneously adjusted, so that the temperature of the glass liquid is accurately controlled. Therefore, the flowing direction of the tin liquid can be controlled, the temperature of the molten glass is further controlled, flexible adjustment is achieved according to needs, and the forming quality of the molten glass is remarkably improved.

Description

Technical Field

[0001] The invention relates to the technical field of glass manufacturing equipment, in particular to a float glass tin bath with adjustable pool bottom. Background Art

[0002] The large-scale production process of flat glass is mainly the float glass process, which has the advantages of high adaptability of product specifications, low production cost and large production capacity.

[0003] At present, the float glass tin bath is the key equipment for float glass forming. The tin bath structure includes a lower tin bath and an upper top cover. The tin bath is filled with molten tin and the upper part is filled with protective gas. The tin bath structure is mainly composed of an inlet section, a polishing area, a forming area, a cooling area, an outlet section, etc. The molten glass flows continuously into the tin bath. Since the density of the molten glass is less than that of the tin, the glass floats on the surface of the tin after flowing into the tin bath. The glass forms a flat glass ribbon of a certain thickness under the combined action of gravity, surface tension and pulling force. After cooling, it is pulled out of the tin bath by a traction roller, and then the flat glass original sheet is obtained after subsequent annealing, bending and cutting. Among them, the float tin bath involves complex flows, including glass liquid, tin liquid, protective atmosphere, etc. Among them, the flow state of the tin liquid is the key influencing factor affecting the temperature distribution in the tin bath. The flow of the tin liquid includes natural convection driven by temperature difference and flow caused by the movement of the surface glass ribbon. Control of the flow state of the tin liquid is the key factor affecting the quality of glass liquid forming.

[0004] In the existing tin bath technology, the liquid flow of the tin bath is mainly controlled by adding barriers at the bottom of the bath, setting barrier flags, inserting tin liquid water bags, etc. Among them, the barriers at the bottom of the pool cannot be adjusted after the tin bath is put into production. The barrier flags and water bags can be adjusted to a certain extent during the production process, but they cannot be flexibly adjusted according to the needs of liquid flow control. In addition, the water bag in the tin liquid will cause problems such as increased energy consumption, pollution of the tin liquid, and leakage risk. Summary of the invention

[0005] The object of the present invention is to provide a float glass tin bath with adjustable bottom to solve the problems raised in the above background technology.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A float glass tin bath with adjustable bottom, comprising a tin bath, a tin bath top cover is arranged on the top of the tin bath, a flow channel control gate is arranged on the left end of the tin bath top cover, an outlet curtain is arranged on the right end of the tin bath top cover, a lip brick is arranged on the left end of the tin bath, and a plurality of bottom adjustment units are arranged on the bottom surface of the tin bath in both the length direction and the width direction of the tin bath;

[0008] The pool bottom adjustment unit comprises a sliding column slidably connected to the bottom surface of the tin bath pool, and the top end of the sliding column is fixedly connected to a top plate;

[0009] The top surface of the top plate is arranged to be rough.

[0010] Preferably, the pool bottom adjustment unit further comprises an annular recess provided on the outer bottom surface of the tin bath pool and located around the sliding column, and the inner side surface of the annular recess is provided with an internal thread.

[0011] Preferably, the pool bottom adjustment unit further comprises a rotating head, the top surface of the rotating head is open, the inner side surface of the rotating head is provided with an external thread, and the outer side surface of the rotating head is provided with a scale.

[0012] Preferably, the rotating head and the annular recess are threadedly connected at the internal thread and the external thread.

[0013] Preferably, the bottom end of the sliding column is configured to be hemispherical, and the bottom end of the sliding column contacts the inner bottom surface of the rotating head.

[0014] Preferably, a plurality of strip-shaped recesses are provided on the top surface of the top plate, and the plurality of strip-shaped recesses are arranged at equal distances.

[0015] Preferably, a plurality of dot-shaped recesses are provided on the top surface of the top plate, and the plurality of dot-shaped recesses are arranged at equal distances.

[0016] Preferably, a protective atmosphere is filled between the tin bath pool and the tin bath top cover, and liquid tin is arranged inside the tin bath pool.

[0017] Preferably, glass liquid is arranged on the top surface of the tin liquid, and the glass liquid flows into the tin bath pool from between the flow channel control gate plate and the lip brick, and the glass liquid is formed into a glass pre-finished product after being polished, formed and cooled in the tin bath pool, and the glass pre-finished product is moved out of the tin bath pool from below the exit curtain through a transition roller.

[0018] Preferably, a plurality of pool top heating elements are arranged on the top cover of the tin bath, and the plurality of pool top heating elements are arranged at equal distances on the top cover of the tin bath.

[0019] The beneficial effects of the present invention are as follows: the present invention utilizes that the height of the top plate in the tin liquid is conveniently adjustable, and the top surface of the top plate is roughly arranged, so that due to its resistance, the flow speed of the tin liquid between the glass liquid and the top plate is reduced, thereby achieving the purpose of accurately controlling the temperature of the glass liquid. At the same time, since the heights of several top plates can be adjusted at the same time, the flow direction of the tin liquid can be controlled, and the temperature of the glass liquid can be further controlled and flexibly adjusted as needed, thereby achieving a significant improvement in the forming quality of the glass liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1is a front cross-sectional view of the present invention;

[0022] Figure 2 is a side cross-sectional view of the present invention;

[0023] Figure 3 It is a structural schematic diagram of the pool bottom regulating unit in the present invention;

[0024] Figure 4 It is a schematic structural diagram of the rotor in the present invention;

[0025] Figure 5 It is a schematic diagram of the structure of the sliding column in the present invention;

[0026] Figure 6 It is a structural schematic diagram of the strip-shaped recess in the present invention;

[0027] Figure 7 It is a structural schematic diagram of the point-shaped notch in the present invention.

[0028] In the figure: 1, tin bath pool; 101, lip brick; 2, tin bath top cover; 201, flow channel control gate; 202, outlet curtain; 3, pool top heating element; 4, glass liquid; 5, transition roller; 6, tin liquid; 7, pool bottom adjustment unit; 701, annular notch; 702, internal thread; 703, top plate; 704, sliding column; 705, rotating head; 706, external thread; 707, ruler; 708, strip notch; 709, dot notch; 8, protective atmosphere. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Reference Figure 1-7 As shown, the present invention is a float glass tin bath with adjustable bottom, comprising a tin bath pool 1, a tin bath top cover 2 is arranged on the top of the tin bath pool 1, a flow channel control gate 201 is arranged on the left end of the tin bath top cover 2, an outlet curtain 202 is arranged on the right end of the tin bath top cover 2, a lip brick 101 is arranged on the left end of the tin bath pool 1, and a plurality of bottom adjustment units 7 are arranged on the bottom surface of the tin bath pool 1 in the length direction and the width direction of the tin bath pool 1.

[0031] Reference Figure 1As shown, it should be additionally explained that a protective atmosphere 8 is filled between the tin bath pool 1 and the tin bath top cover 2, tin liquid 6 is arranged inside the tin bath pool 1, and glass liquid 4 is arranged on the top surface of the tin liquid 6. The glass liquid 4 flows into the tin bath pool 1 from between the flow channel control gate plate 201 and the lip brick 101, and the glass liquid 4 is polished, formed and cooled in the tin bath pool 1 to form a glass pre-finished product. The glass pre-finished product is moved out of the tin bath pool 1 from under the outlet curtain 202 through the transition roller 5, wherein the transition roller 5 is a prior art and is used to assist in the removal of the glass pre-finished product, which will not be elaborated herein. A plurality of pool top heating elements 3 are arranged on the tin bath top cover 2, and the plurality of pool top heating elements 3 are arranged at equal distances on the tin bath top cover 2.

[0032] Reference Figure 1 As shown, the pool bottom adjustment unit 7 includes a sliding column 704 slidably connected to the bottom surface of the tin bath pool 1, wherein the sliding column 704 passes through the bottom surface of the tin bath pool 1, and the top of the sliding column 704 is fixedly connected to a top plate 703, which is located inside the tin bath pool 1, and the top surface of the top plate 703 is rough.

[0033] By setting the pool bottom adjustment unit 7, the height of the top plate 703 in the tin liquid 6 is conveniently adjustable, so that the depth of the tin liquid 6 below the glass liquid 4 (the vertical distance from the top surface of the tin liquid 6 to the top plate 703) can be conveniently adjusted. The top surface of the top plate 703 is roughly set, so that due to its resistance, the flow speed of the tin liquid 6 between the glass liquid 4 and the top plate 703 is reduced, thereby reducing the convection intensity of the tin liquid 6, thereby achieving the purpose of accurately controlling the temperature of the glass liquid 4. At the same time, since several pool bottom adjustment units 7 are arranged in the length and width directions of the bottom surface of the tin bath pool 1, the heights of several top plates 703 can be adjusted at the same time. When their heights are different, due to the different resistance of the tin liquid 6 to the top plate 703, the flow direction of the tin liquid 6 can be controlled, the temperature of the glass liquid 4 can be better controlled, and it can be flexibly adjusted as needed, and it can still be adjusted in time during use, thereby significantly improving the forming quality of the glass liquid 4.

[0034] Reference Figure 2 and Figure 4As shown, in an optional embodiment, the pool bottom adjustment unit 7 also includes an annular recess 701 opened on the outer bottom surface of the tin bath pool 1 and located around the sliding column 704, and the inner side surface of the annular recess 701 is provided with an internal thread 702. The pool bottom adjustment unit 7 also includes a rotating head 705, the top surface of the rotating head 705 is open, the inner side surface of the rotating head 705 is provided with an external thread 706, and the outer side surface of the rotating head 705 is provided with a scale 707. The rotating head 705 and the annular recess 701 are threadedly connected at the internal thread 702 and the external thread 706, and the annular recess 701 and the rotating head are connected to each other through the annular recess 701 and the rotating head. By setting 705 and the scale 707, the staff can control the rotation of the rotating head 705 in the annular recess 701 by rotating the rotating head 705 left and right, and then control the depth of the rotating head 705 rotating into the annular recess 701 in combination with the scale 707, thereby conveniently controlling the height of the top plate 703 in the tin bath pool 1. The operation is convenient and efficient, and it can be adjusted during the glass production process. The rotating head 705 can also close the sliding connection between the sliding column 704 and the tin bath pool 1 to prevent leakage of the tin liquid 6 in the tin bath pool 1, so that the safety of the device is guaranteed.

[0035] Reference Figure 5 As shown, in an optional embodiment, the bottom end of the sliding column 704 is configured to be hemispherical, and the bottom end of the sliding column 704 contacts the inner bottom surface of the rotating head 705. Through such a configuration, the contact area between the sliding column 704 and the inner bottom surface of the rotating head 705 can be made smaller, thereby reducing the disturbance of the sliding column 704 caused by the rotation of the rotating head 705.

[0036] Reference Figure 6 As shown, in an optional embodiment, a plurality of strip-shaped recesses 708 are provided on the top surface of the top plate 703, and the plurality of strip-shaped recesses 708 are arranged at equal distances. Through such an arrangement, the resistance of the tin liquid 6 on the top surface of the top plate 703 when flowing along the path of the strip-shaped recesses 708 is minimized, so that the staff can control the orientation of the strip-shaped recesses 708 in the tin liquid 6, and more accurately control the flow direction and speed of the tin liquid 6, so that the device can more accurately control the temperature of the glass liquid 4 during the forming process above the tin liquid 6, thereby improving the forming quality of the glass liquid 4.

[0037] Reference Figure 7 As shown, in an optional embodiment, a plurality of dot-shaped recesses 709 are provided on the top surface of the top plate 703, and the plurality of dot-shaped recesses 709 are arranged at equal distances. Through such an arrangement, the resistance of the tin liquid 6 on the top surface of the top plate 703 to flow in any direction on its surface is the same, so that the staff does not need to pay attention to the placement of the top surface of the top plate 703 when installing the top plate 703, and the installation is easier.

[0038] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A float glass tin bath with adjustable bottom, characterized in that: The invention comprises a tin bath pool (1), wherein a tin bath top cover (2) is arranged on the top of the tin bath pool (1), a flow channel control gate (201) is arranged on the left end of the tin bath top cover (2), an outlet blocking curtain (202) is arranged on the right end of the tin bath top cover (2), a lip brick (101) is arranged on the left end of the tin bath pool (1), and a plurality of bottom adjustment units (7) are arranged on the bottom surface of the tin bath pool (1) in both the length direction and the width direction of the tin bath pool (1); The pool bottom regulating unit (7) comprises a sliding column (704) slidably connected to the bottom surface of the tin bath pool (1), and the top end of the sliding column (704) is fixedly connected to a top plate (703); The top surface of the top plate (703) is roughened.

2. The float glass tin bath with adjustable bottom according to claim 1, characterized in that: The pool bottom adjustment unit (7) further comprises an annular recess (701) formed on the outer bottom surface of the tin bath pool (1) and located around the sliding column (704), and an inner side surface of the annular recess (701) is provided with an internal thread (702).

3. The float glass tin bath with adjustable bottom according to claim 2, characterized in that: The pool bottom regulating unit (7) further comprises a rotating head (705), the top surface of the rotating head (705) is open, the inner side surface of the rotating head (705) is provided with an external thread (706), and the outer side surface of the rotating head (705) is provided with a scale (707).

4. The float glass tin bath with adjustable bottom according to claim 3, characterized in that: The rotating head (705) and the annular recess (701) are threadedly connected at the internal thread (702) and the external thread (706).

5. The float glass tin bath with adjustable bottom according to claim 1, characterized in that: The bottom end of the slide column (704) is configured to be hemispherical, and the bottom end of the slide column (704) contacts the inner bottom surface of the rotating head (705).

6. The float glass tin bath with adjustable bottom according to claim 1, characterized in that: The top surface of the top plate (703) is provided with a plurality of strip-shaped recesses (708), and the plurality of strip-shaped recesses (708) are arranged at equal distances.

7. The float glass tin bath with adjustable bottom according to claim 1, characterized in that: The top surface of the top plate (703) is provided with a plurality of dot-shaped recesses (709), and the plurality of dot-shaped recesses (709) are arranged at equal distances.

8. The float glass tin bath with adjustable bottom according to claim 1, characterized in that: A protective atmosphere (8) is filled between the tin bath pool (1) and the tin bath top cover (2), and tin liquid (6) is arranged inside the tin bath pool (1).

9. The float glass tin bath with adjustable bottom according to claim 8, characterized in that: The top surface of the tin liquid (6) is provided with glass liquid (4), and the glass liquid (4) flows into the tin bath pool (1) from between the flow channel control gate plate (201) and the lip brick (101). The glass liquid (4) is polished, formed and cooled in the tin bath pool (1) to form a glass pre-finished product, and the glass pre-finished product is moved out of the tin bath pool (1) from below the outlet curtain (202) through a transition roller (5).

10. The float glass tin bath with adjustable bottom according to claim 1, characterized in that: A plurality of pool top heating elements (3) are arranged on the tin bath top cover (2), and the plurality of pool top heating elements (3) are arranged at equal distances on the tin bath top cover (2).

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