Ladder-shaped liquid level glass melting furnace device

Abstract

The invention discloses a stepped liquid level glass melting furnace device which comprises a melting part, the runner is arranged behind the melting part; the shallow pool working part is fixedly mounted at the outlet end of the flow channel; the slag stopping water ladle is arranged at one end, close to the melting part, of the inner side of the runner; the stirring assembly is arranged on the inner side of the flow channel and behind the slag stopping water bag; the safety flashboard is arranged on the inner side of the flow channel and behind the stirrer; the two flow regulating flashboards are distributed on the inner side of the flow channel in a linear array manner and are positioned between the safety flashboard and the shallow pool working part; the temperature adjusting assemblies are distributed on the top surface and the side surface of the shallow pool working part in a linear array manner. High-quality molten glass on the upper layer of the melting part is directly cooled and formed, molten glass in the working part is thoroughly prevented from flowing back to the melting part, secondary heating of the molten glass is avoided, and glass melting energy consumption is effectively reduced; and meanwhile, the size of a working part is reduced, the material consumption is reduced, the investment is reduced, and the method is suitable for production processes such as float process, calendering and vessels.

Description

Technical Field

[0001] The invention relates to the technical field of glass melting furnaces, and in particular to a stepped liquid surface glass melting furnace device. Background Art

[0002] Float glass melting furnace is a key equipment in the glass manufacturing process. Its design and operation have an important impact on the quality of glass and production efficiency. Float glass melting furnace is usually composed of multiple parts, including flue, heat storage chamber, small furnace, melting part, neck, working part, etc. Float glass melting furnace adopts advanced combustion technology and thermal insulation materials to improve thermal efficiency and reduce energy consumption.

[0003] In the current flat glass production technology, melting furnaces all use a neck and deep pool cooling part / passage structure. In order to reduce the energy consumption of melting glass liquid, in addition to taking better insulation measures for the melting furnace, it is to reduce the reflux of glass liquid and prevent the glass liquid from being heated again. The measures currently taken include narrowing the width of the neck; using deep water bags; increasing the bottom height of the neck and cooling part / passage, and reducing the depth of glass liquid in the neck and cooling part / passage. These measures reduce the reflux of glass liquid and reduce the energy consumption of melting glass liquid. However, these measures do not completely block the reflux of glass liquid. Therefore, the problems existing in the float glass melting furnace of the prior art are: 1. During the production process, the glass liquid that has been cooled in the working part flows back to the melting part and is heated again, resulting in high energy consumption; 2. Due to the reflux and secondary heating of the glass liquid, the load on the working part is large, which also causes the working part to be large in size, use more materials, and have a large investment.

[0004] Therefore, the present application provides a stepped liquid level glass melting furnace device. Summary of the invention

[0005] In view of this, the object of the present invention is to provide a stepped liquid level glass melting furnace device to solve the problem of blocking the reflux of glass liquid.

[0006] Based on the above purpose, the present invention provides a stepped liquid level glass melting furnace device, comprising:

[0007] Melting section;

[0008] A flow channel, arranged behind the melting section and fixedly mounted at a rear outlet end of the melting section;

[0009] A shallow pool working part is arranged behind the flow channel and fixedly installed at the outlet end of the flow channel;

[0010] A slag-blocking water bag is arranged at one end of the inner side of the flow channel close to the melting part;

[0011] A stirring assembly is arranged inside the flow channel and behind the slag blocking water bag;

[0012] A safety gate, arranged inside the flow channel and behind the stirring assembly;

[0013] Two flow regulating gates are arranged in a linear array on the inner side of the flow channel between the safety gate and the shallow pool working part;

[0014] A plurality of groups of temperature regulating components are distributed in a linear array on the top surface and side surfaces of the shallow pool working part.

[0015] Preferably, the stirring assembly comprises:

[0016] Bracket, fixedly installed on the operating floor on both sides of the flow channel;

[0017] The main beam spans the flow channel, below the horizontal track, and is fixed on the vertical slide rail. It is used to fix the stirring rod and the driving device;

[0018] Several stirring rods are fixedly installed on the main beam, and the spiral stirring blades penetrate into the glass to stir the glass liquid;

[0019] The driving device is fixedly installed on the main beam to provide power for the stirring rod. The forward and reverse rotation of the stirring rod and the speed adjustment can be realized through electrical control;

[0020] The lifting device is used to control the lifting and lowering of the main beam and the stirring rod. When the stirring device needs maintenance, the stirring rod can be lifted out of the glass liquid surface;

[0021] The horizontal track is fixedly installed on the bracket and is used to hang the stirring device. The stirring device can be pulled out along the horizontal track for maintenance.

[0022] Preferably, the temperature adjustment component comprises:

[0023] A cooling air inlet is provided through the top surface of the shallow pool working part;

[0024] A plurality of flameless heating spray guns are distributed in a linear array on the side of the shallow pool working part.

[0025] Preferably, a baffle is provided at the bottom of the melting section outlet to allow only the upper high-quality glass liquid to flow out.

[0026] Preferably, the bottom of the flow channel is locally deepened at the stirring device to improve the stirring effect.

[0027] Preferably, the wall of the shallow pool working part is lower than the bottom of the flow channel.

[0028] The present invention also provides an application method of a stepped liquid level glass melting furnace device, using the stepped liquid level glass melting furnace device as described above, comprising the following steps:

[0029] Step 1: In the melting section, the batch materials are melted and clarified to form qualified molten glass. Since a baffle is set at the bottom of the melting section outlet, only the upper high-quality molten glass can flow into the flow channel.

[0030] Step 2: When passing through the flow channel, occasional impurities such as scum are intercepted by the scum blocking water bag and removed by the workers; the glass liquid is stirred by the stirring assembly in the flow channel for further homogenization; it flows steadily into the shallow pool working part under the control of the flow regulating gate, and there are two flow regulating gates, one for use and one for backup; when a failure occurs in the subsequent process, the safety gate can be used to emergency cut off the flow channel to ensure that the glass liquid in the shallow pool working part does not overflow.

[0031] Step 3: After the glass liquid enters the shallow pool working part, its temperature is adjusted by the temperature regulating component. When the glass liquid temperature is too high, cooling air can be introduced into the shallow pool working part through the cooling air inlet to reduce the glass liquid temperature; when the glass liquid temperature is too low, the flameless heating spray gun can be turned on to heat the glass liquid to increase the glass liquid temperature; most of the time, in order to make the lateral temperature of the glass liquid more uniform, cooling air may be introduced and the flameless heating spray gun may be turned on at the same time.

[0032] Beneficial effects of the present invention:

[0033] 1. This type of stepped liquid surface glass melting furnace device and application method, by setting a melting part, a flow channel and a shallow pool working part, realizes that the high-quality glass liquid on the upper layer of the melting part is directly cooled and formed, completely blocks the glass liquid from the working part from flowing back to the melting part, avoids secondary heating of the glass liquid, and effectively reduces the energy consumption of glass melting; at the same time, it reduces the size of the working part, reduces the material consumption, and reduces the investment. It is suitable for float glass, calendering, vessel and other production processes.

[0034] 2. This type of stepped liquid surface glass melting furnace device and application method, by setting a stirring assembly, the driving device drives the stirring rod to rotate through a synchronous belt, and the spiral stirring blades of the stirring rod can more fully homogenize the glass liquid, thereby improving the stirring effect and production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0036] Figure 1 It is a structural schematic diagram of the present invention;

[0037] Figure 2 A top view of the present invention;

[0038] Figure 3 It is a schematic diagram of the flow channel structure of the present invention;

[0039] Figure 4 It is a schematic diagram of the structure of the stirring assembly of the present invention;

[0040] Figure 5 It is a schematic structural diagram of the shallow pool working part of the present invention.

[0041] The markings in the figure are:

[0042] 1. Melting part; 2. Runner; 3. Shallow pool working part; 4. Slag blocking water bag; 5. Stirring assembly; 6. Safety gate; 7. Flow regulating gate; 8. Bracket; 9. Main beam; 10. Stirring rod; 11. Driving device; 12. Lifting device; 13. Slide rail; 14. Cooling air inlet; 15. Flameless heating spray gun. DETAILED DESCRIPTION

[0043] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0044] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0045] like Figures 1 to 5As shown, a stepped liquid surface glass melting furnace device comprises a melting part 1, wherein a baffle is arranged at the bottom of the outlet; a flow channel 2, which is arranged behind the melting part 1 and fixedly mounted at the rear outlet end of the melting part 1; a shallow pool working part 3, which is fixedly mounted at the outlet end of the flow channel 2, and the pool wall of the shallow pool working part 3 is lower than the pool bottom of the flow channel 2; a slag blocking water bag 4, which is arranged on the inner side of the flow channel 2 near one end of the melting part 1; a stirring assembly 5, which is arranged on the inner side of the flow channel 2, behind the slag blocking water bag 4; a safety gate 6, which is arranged on the inner side of the flow channel 2, behind the stirring assembly 5; two flow regulating gates 7, which are arranged in a linear array on the inner side of the flow channel 2 and between the safety gate 6 and the shallow pool working part 3; a plurality of groups of temperature regulating assemblies, which are arranged in a linear array on the top surface and side surfaces of the shallow pool working part 3;

[0046] The melting section 1 melts and clarifies the batch materials to form qualified molten glass; the runner 2 is arranged between the melting section 1 and the shallow pool working section 3, and the molten glass is further homogenized by the stirring component, and the flow rate of the molten glass flowing into the shallow pool working section 3 is adjusted by the flow regulating gate, and the molten glass can be cut off by the safety gate in an emergency; the shallow pool working section 3 is arranged after the runner 2, and is used to adjust the temperature of the molten glass by the temperature regulating component so that the temperature of the molten glass meets the forming requirements.

[0047] like Figure 4 As shown, the stirring assembly includes a bracket 8, which is fixedly installed on the operating floor on both sides of the flow channel 2, used to support the horizontal track 13, and is provided with a vertical slide rail for lifting; a main beam 9, which spans over the flow channel 2 and below the horizontal track 13, is fixed on the vertical slide rail, and can be lifted and lowered along the vertical slide rail; a number of stirring rods 10 are fixedly installed side by side on the main beam, and the spiral stirring blades penetrate into the glass to stir the glass liquid; a driving device 11, which is fixedly installed on the main beam, provides power to the stirring rod through a synchronous belt, and can realize forward and reverse rotation of the stirring rod and speed adjustment through electrical control; a lifting device 12, which can manually control the lifting and lowering of the main beam along the vertical slide rail through a winch. When the stirring device needs maintenance, the stirring rod can be lifted out of the glass liquid surface; the horizontal track 13, which is fixedly installed on the bracket 9, is used to hang the stirring device, and the stirring device can be pulled out along the horizontal track 13 for maintenance;

[0048] like Figure 5 As shown, the temperature control assembly includes a cooling air inlet 14, which is arranged through the top surface of the shallow pool working part 3; a plurality of flameless heating spray guns 15, which are arranged in a linear array on the side of the shallow pool working part 3;

[0049] The cooling air inlet 14 and the flameless heating spray gun 15 arranged in the shallow pool working part 3 can cool or heat the glass liquid as needed, and the temperature regulation is efficient. Since there is no reflux secondary heating, the load of the shallow pool working part 3 is much smaller, and only a small cooling area is needed to meet the cooling requirements. Compared with the original deep pool cooling part, the use of refractory materials and steel is reduced, and the investment is reduced.

[0050] The present invention also provides an application method of the gate brick structure in a float glass melting furnace, using the above-mentioned stepped liquid surface glass melting furnace device, comprising the following steps:

[0051] S100: In the melting section 1, the batch material is melted and clarified to form qualified glass liquid. Since a baffle is provided at the bottom of the melting section outlet, only the upper high-quality glass liquid can flow into the flow channel 2;

[0052] S200: When passing through the flow channel 2, impurities such as scum that occasionally appear are intercepted by the slag blocking water bag 4 and removed by the workers; the glass liquid is stirred by the stirring assembly 5 in the flow channel to be further homogenized; it flows steadily into the shallow pool working part 3 under the control of the flow regulating gate 7, and the two flow regulating gates 7 are one for use and one for backup; when a failure occurs in the subsequent process, the safety gate 4 can be used to urgently cut off the flow channel to ensure that the glass liquid in the shallow pool working part 3 does not overflow;

[0053] S300: After the glass liquid enters the shallow pool working part 3, its temperature is adjusted by the temperature adjustment component. When the glass liquid temperature is too high, cooling air can be introduced into the shallow pool working part through the cooling air inlet 14 to reduce the glass liquid temperature; when the glass liquid temperature is too low, the flameless heating spray gun 15 can be turned on to heat the glass liquid to increase the glass liquid temperature; most of the time, in order to make the lateral temperature of the glass liquid more uniform, cooling air may be introduced and the flameless heating spray gun may be turned on at the same time.

[0054] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may also be combined, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0055] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A stepped liquid level glass melting furnace device, characterized in that: include: Melting section (1); A flow channel (2) is arranged behind the melting section (1) and is fixedly mounted at the rear outlet end of the melting section (1); A shallow pool working part (3) is arranged behind the flow channel (2) and is fixedly installed at the outlet end of the flow channel (2); A slag blocking water bag (4) is arranged inside the flow channel (2) and close to one end of the melting part (1); A stirring assembly (5) is arranged inside the flow channel (2) and behind the slag blocking water bag (4); A safety gate (6) is arranged inside the flow channel (2) and behind the stirring assembly (5); Two flow regulating gates (7) are arranged in a linear array on the inner side of the flow channel (2) between the safety gate (6) and the shallow pool working part (3); A plurality of groups of temperature regulating components are distributed in a linear array on the top surface and side surfaces of the shallow pool working part (3).

2. A stepped liquid level glass melting furnace device according to claim 1, characterized in that: The stirring assembly comprises: A bracket (8) is fixedly mounted on the operating floor on both sides of the flow channel (2); The main beam (9) spans the flow channel (2), is below the horizontal track (13), and is fixed on the vertical slide rail. It is used to fix the stirring rod (10) and the driving device (11); A plurality of stirring rods (10) are fixedly mounted on the main beam, and the spiral stirring blades penetrate into the glass to stir the glass liquid; The driving device (11) is fixedly mounted on the main beam and provides power to the stirring rod. The forward and reverse rotation of the stirring rod and the speed adjustment can be realized through electrical control. The lifting device (12) is used to control the lifting and lowering of the main beam and the stirring rod. When the stirring device needs maintenance, the stirring rod can be lifted out of the glass liquid surface; The horizontal track (13) is fixedly mounted on the bracket (9) and is used to hang the stirring device. The stirring device can be pulled out along the horizontal track (13) for maintenance.

3. The stepped liquid level glass melting furnace device according to claim 1, characterized in that: The temperature adjustment component comprises: A cooling air inlet (14) is provided through the top surface of the shallow pool working part (3); A plurality of flameless heating spray guns (15) are distributed in a linear array on the side of the shallow pool working part (3).

4. The stepped liquid level glass melting furnace device according to claim 1, characterized in that: A baffle is provided at the bottom of the outlet of the melting section (1), allowing only the upper high-quality glass liquid to flow out.

5. The stepped liquid level glass melting furnace device according to claim 1, characterized in that: The bottom of the flow channel (2) is locally deepened at the stirring device to improve the stirring effect.

6. The stepped liquid level glass melting furnace device according to claim 1, characterized in that: The wall of the shallow pool working part (3) is lower than the bottom of the flow channel (2). In the longitudinal direction of the melting furnace, the glass liquid level forms a step at the outlet of the flow channel (2), and because the glass liquid level in the shallow pool working part (3) is lower than the bottom of the flow channel (2), the glass liquid in the shallow pool working part (3) cannot flow back to the flow channel (2) and the melting part (1), which is also the key to this invention.

7. An application method of a stepped liquid level glass melting furnace device, using the stepped liquid level glass melting furnace device as described in any one of claims 1 to 6, characterized in that: include: Step 1: In the melting section (1), the batch material is melted and clarified to form qualified glass liquid. Since a baffle is provided at the bottom of the outlet of the melting section (1), only the upper high-quality glass liquid can flow into the flow channel (2); Step 2: When passing through the flow channel (2), impurities such as scum that occasionally appear are intercepted by the scum blocking water bag (4) and removed by the workers; the glass liquid is stirred by the stirring rod (10) in the flow channel (2) to be further homogenized; under the control of the flow regulating gate (7), it flows stably into the shallow pool working part (3), and two flow regulating gates are used, one for use and the other for standby; when a failure occurs in the subsequent process, the safety gate (6) can be used to urgently cut off the flow channel to ensure that the glass liquid in the shallow pool working part (3) does not overflow; Step 3: After the glass liquid enters the shallow pool working part (3), its temperature is adjusted by the temperature adjustment component. When the temperature of the glass liquid is too high, cooling air can be introduced into the shallow pool working part (3) through the cooling air inlet (14) to reduce the temperature of the glass liquid; when the temperature of the glass liquid is too low, the flameless heating spray gun (15) can be turned on to heat the glass liquid to increase the temperature of the glass liquid; most of the time, in order to make the lateral temperature of the glass liquid more uniform, cooling air may be introduced and the flameless heating spray gun may be turned on at the same time.

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