Float melting furnace structure

By introducing a guide unit into the float furnace structure and utilizing the pressure difference to supplement the hot air flow from the melting section to the branch working section, the problem of insufficient branch tin bath temperature was solved, and the production of 2mm thin photovoltaic glass was realized.

CN223458230UActive Publication Date: 2025-10-21HUNAN KIBING SOLAR TECH CO LTD
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Patent Information

Application Number
CN202422683089.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-04
Publication Date
2025-10-21
Estimated Expiration
2034-11-04

AI Technical Summary

Technical Problem

In a one-kiln, two-line float kiln system, when the branch tin bath produces 2mm thin photovoltaic glass, the molten glass flows through the bottom of the working pool, the breast wall and the space for cooling, resulting in the temperature being unable to meet the forming requirements and unable to meet the production needs of 2mm thin photovoltaic glass.

Method used

The structure of melting section, main line working section, branch line working section and guide unit is adopted. The pressure difference is used to make the hot air flow from the melting section flow continuously to the branch line working section. The branch line working section is connected with the external environment through the guide unit to increase the temperature of the branch line working section.

Benefits of technology

It effectively raises the temperature of the branch line working section to the temperature required for glass production, meeting the production requirements of 2mm thin photovoltaic glass.

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Abstract

The utility model discloses a float melting furnace structure, which comprises a melting part, a floating part and a floating part, the main line working part is communicated with the melting part; the branch line working part is communicated with the melting part; the flow guide unit is arranged on the branch line working part and is connected with the interior of the branch line working part and the external environment so as to adjust the internal pressure of the branch line working part, so that the hot air flow of the melting part flows towards the branch line working part; according to the technical scheme, the structure is simple, and the temperature of the branch line working part is effectively improved so as to reach the temperature required by glass production.
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Description

TECHNICAL FIELD

[0001] The utility model relates to glass production technical field, especially a kind of floatation melting furnace structure. BACKGROUND

[0002] The rapid development of photovoltaic industry drives domestic glass enterprises to change to photovoltaic industry, and float line changes from building curtain wall to produce photovoltaic glass, and the thickness of photovoltaic assembly packaging glass is generally 3.2mm, 2.5mm and 2mm calendered glass combination, but to make photovoltaic assembly lightweight, it is important to produce 2mm photovoltaic glass as packaging material, in one-kiln two-line floatation kiln system, main line tin groove produces 2mm thin plate photovoltaic glass, branch line tin groove produces 3.2mm photovoltaic glass, to make photovoltaic assembly lightweight, it is required that branch line tin groove also produces 2mm thin plate glass, and the required heat for producing thin plate glass is high, when glass liquid flows to branch line tin groove, due to the temperature reduction of glass liquid flowing through working part pool bottom, breast wall and space, the temperature of glass liquid flowing into branch line tin groove is reduced, so that the temperature of glass liquid flowing into branch line tin groove cannot meet the forming requirement, and the production requirement of 2mm thin plate photovoltaic glass cannot be met. SUMMARY

[0003] The main purpose of the utility model is to provide a kind of floatation melting furnace structure, to improve the temperature of branch line working part, to meet the glass production requirement.

[0004] To achieve the above-mentioned purpose, the floatation melting furnace structure provided by the utility model comprises:

[0005] Melting part, glass liquid is placed in;

[0006] Main line working part, the melting part is communicated;

[0007] Branch line working part, the melting part is communicated; and

[0008] Flow guide unit, located in the branch line working part, and connecting the inside of the branch line working part with the outside environment to adjust the internal pressure of the branch line working part so that the hot gas flow of the melting part flows towards the branch line working part.

[0009] Optionally, the floatation melting furnace structure further comprises a straight passage, and the straight passage communicates the melting part and the branch line working part.

[0010] Optionally, the flow guide unit comprises:

[0011] Through hole, located in the side wall of the branch line working part;

[0012] Flow guide cylinder, communicating the through hole with the outside of the branch line working part, and the end of the flow guide cylinder away from the branch line working part is an air outlet;

[0013] The gas in the branch working part flows out through the through hole and the flow guide cylinder.

[0014] Optionally, the through hole is arranged above the liquid level of the glass liquid in the branch working part.

[0015] Optionally, the float melting furnace structure further comprises a covering unit, the covering unit is rotatably installed at the gas outlet of the flow guide cylinder to have a first state and a second state; in the first state, the covering unit is buckled at the gas outlet of the flow guide cylinder; in the second state, the covering unit is rotated to open the gas outlet so that the gas in the flow guide cylinder flows out from the gas outlet.

[0016] Optionally, the covering unit comprises:

[0017] a baffle plate;

[0018] a pin shaft arranged at the outer edge of the gas outlet of the flow guide cylinder, one side of the baffle plate being rotatably connected to the pin shaft; and

[0019] a pull rod connected to one side of the baffle plate, the baffle plate being rotated by pulling the pull rod.

[0020] Optionally, one end of the pull rod is provided with a buckling part, the buckling part being away from the gas outlet of the flow guide cylinder.

[0021] The outer cylinder wall of the flow guide cylinder is provided with a buckle part matched with the buckling part.

[0022] In the first state, the buckling part is buckled and connected with the buckle part.

[0023] Optionally, the baffle plate and the pin shaft are arranged opposite to the baffle plate and the pull rod.

[0024] The technical scheme of the utility model adopts the melting part, the main line working part, the branch working part and the flow guide unit, the glass liquid flows from the melting part to the main line working part and the branch working part, the hot air flow flows to the main line working part and the branch working part along with the glass liquid, the flow guide unit is arranged at the branch working part and is connected with the branch working part and the external environment, because the air pressure in the branch working part is greater than that of the external environment, under the action of the pressure difference, when the flow guide unit is connected, the hot air flow in the branch working part flows to the external environment through the flow guide unit, and the internal pressure difference is affected, the hot air flow of the melting part continuously flows to the branch working part, heat is supplemented to the branch working part, the hot air flow flowing to the branch working part is more than that flowing to the external environment of the branch working part, so that the temperature of the branch working part gradually rises to the required temperature of glass production. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below only show some of the embodiments of the present application, and other drawings can also be obtained according to the structures shown in the drawings without creative labor.

[0026] Figure 1 A structural schematic view of the float method melting furnace structure one embodiment of the present application;

[0027] Figure 2 A gas flow direction schematic view of the float method melting furnace structure one embodiment of the present application;

[0028] Figure 3 A flow guide unit structure schematic view of the float method melting furnace structure one embodiment of the present application;

[0029] Figure 4 A Figure 3 An enlarged schematic view of part A.

[0030] Explanation of reference signs:

[0031] Reference Name Reference Name 10 Melting part 20 Straight path 30 Main line working part 40 Branch line working part 50 Flow guiding unit 51 Through hole 52 Flow guiding cylinder 60 Covering unit 61 Baffle 62 Pull rod 63 Buckling part 64 Buckling part

[0032] The realization, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0034] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications will also change accordingly.

[0035] In the utility model, unless another definite provision and limitation, the terms "connect", "fix" and the like should be understood broadly, for example, "fix" can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through intermediate medium, can be the communication of two elements or the interaction of two elements, unless another definite limitation.For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0036] In addition, if the embodiment of the utility model involves "first", "second" and the like, the "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of indicated technical features.Therefore, the features with "first" and "second" can explicitly or implicitly include at least one of the features.In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes, for example, "A and / or B" includes A scheme, or B scheme, or A and B simultaneously meet the scheme.In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, also not within the protection scope required by the utility model.

[0037] The rapid development of photovoltaic industry drives domestic glass enterprises to change to photovoltaic industry, and the float line is changed from building curtain wall to producing photovoltaic glass, and the thickness of photovoltaic assembly packaging glass is generally 3.2mm, 2.5mm and 2mm calendered glass combination, but in order to make the photovoltaic assembly light, the production of 2mm photovoltaic glass as packaging material is more important, in the float kiln system of one kiln and two lines, the main line tin tank produces 2mm thin plate photovoltaic glass, and the branch line tin tank produces 3.2mm photovoltaic glass, in order to make the photovoltaic assembly light, the branch line tin tank is required to also produce 2mm thin plate glass, and the heat required for producing thin plate glass is high, when the glass liquid flows to the branch line tin tank, due to the temperature reduction of the glass liquid flowing through the pool bottom, breast wall and space of working part, the temperature of the glass liquid flowing into the branch line tin tank is reduced, so that the temperature of the glass liquid flowing into the branch line tin tank cannot meet the forming requirement, and the production requirement of 2mm thin plate photovoltaic glass cannot be met.

[0038] In order to solve the above technical problems, the utility model provides a float method melting furnace structure, through adopting melting portion, main line work portion, branch line work portion and flow guide unit, glass liquid flows from melting portion to main line work portion and branch line work portion, hot air current flows to main line work portion and branch line work portion along glass liquid respectively, flow guide unit is equipped at branch line work portion, and is connected with branch line work portion and outside environment, because the air pressure in branch line work portion is greater than outside environment, under the action of pressure difference, when flow guide unit is connected, hot air current in branch line work portion flows to outside through flow guide unit, and the inside is affected by pressure difference, and the hot air current of melting portion flows to branch line work portion unceasingly, and the heat of branch line work portion is supplemented, and the hot air current flowing to branch line work portion is more than the hot air current flowing to outside of branch line work portion, so that the temperature of branch line work portion gradually rises to the temperature required by glass production.

[0039] The utility model provides a float method melting furnace structure.

[0040] In the utility model embodiment, the float method melting furnace structure comprises:

[0041] Melting portion 10, glass liquid is placed in;

[0042] Main line work portion 30 is connected with melting portion 10;

[0043] Branch line work portion 40 is connected with melting portion 10; and

[0044] Flow guide unit 50 is equipped in branch line work portion 40, and is connected with the inside of branch line work portion 40 and outside environment to adjust the inside pressure of branch line work portion 40 to make the hot air current of melting portion 10 flow to branch line work portion 40.

[0045] In the utility model technical scheme, melting portion 10 is placed with glass liquid in liquid state, and the impurities in glass liquid are left behind in the setting clarification tank behind melting portion 10, and the clean glass liquid is discharged, and the glass liquid flows to main line work portion 30 and branch line work portion 40, and hot air current flows to main line work portion 30 and branch line work portion 40 along glass liquid respectively, and flow guide unit 50 is equipped at branch line work portion 40, and is connected with branch line work portion 40 and outside environment, because the air pressure in branch line work portion 40 is greater than outside environment, under the action of pressure difference, when flow guide unit 50 is connected, hot air current in branch line work portion 40 flows to outside through flow guide unit 50, and the inside is affected by pressure difference, and the hot air current of melting portion 10 flows to branch line work portion 40 unceasingly, and the heat of branch line work portion 40 is supplemented, and the hot air current flowing to branch line work portion 40 is more than the hot air current flowing to outside of branch line work portion 40, so that the temperature of branch line work portion 40 gradually rises to the temperature required by glass production.

[0046] Optionally, the float method melting furnace structure further comprises a straight passage 20, and the straight passage 20 is connected with the melting portion 10 and the branch line work portion 40.

[0047] Specifically, the straight path 20 connects the clarifier and the branch line working section 40, as shown in FIG. Figure 1 and Figure 2 As shown, the glass liquid flows out of the melting part 10 to the clarification tank and then flows to the branch working part 40 through the straight passage 20. The glass liquid flowing through the straight passage 20 causes heat loss, resulting in a decrease in the temperature of the branch working part 40. A guide unit 50 is opened at the junction of the straight passage 20 and the branch working part 40 to allow the internal hot air flow to flow to the external environment, thereby causing the hot air flow in the melting part 10 to continuously flow to the branch working part 40, thereby increasing the temperature of the branch working part 40.

[0048] Optionally, the flow guiding unit 50 includes:

[0049] A through hole 51 is provided on the side wall of the branch line working portion 40;

[0050] The guide tube 52 communicates with the through hole 51 and the outside of the branch line working part 40. The end of the guide tube 52 away from the branch line working part 40 is an air outlet;

[0051] The gas in the branch line working portion 40 flows out through the through hole 51 and the guide tube 52 .

[0052] Specifically, if Figure 3 As shown, the guide unit 50 includes a through hole 51 and a guide tube 52. The through hole 51 is opened on the wall. The guide tube 52 passes through the through hole 51 to connect the inside of the branch working part 40 with the external environment. The guide tube 52 is specifically configured to include two parts, a horizontal section and a vertical section. The horizontal section is connected to the through hole 51, and the vertical section is vertically arranged, one end is connected to the horizontal section, and the other end is upward, that is, the air outlet of the guide tube 52 is upward. Since the internal temperature of the branch working part 40 is relatively high, the internal air pressure is greater than the external environmental pressure. Under the action of the air pressure difference, the hot air flow of the branch working part 40 will pass through the through hole 51 and the guide tube 52 to the outside world. Since the density of hot air is less than the density of cold air, the hot air gathered at the air outlet position is hot air, which can also prevent cold air from entering the branch working part 40 and affecting the processing of the glass.

[0053] Optionally, the through hole 51 is provided above the liquid level of the glass liquid in the branch line working part 40 .

[0054] Specifically, the lowest line of the through hole 51 is higher than the glass liquid level, which can effectively ensure the outflow of hot air and prevent the glass liquid from flowing into the through hole 51 and causing the loss of the glass liquid.

[0055] Further, the float melting furnace structure further comprises a covering unit 60, which is rotatably installed at the gas outlet of the flow guide cylinder 52 to have a first state and a second state; in the first state, the covering unit 60 is buckled at the gas outlet of the flow guide cylinder 52; in the second state, the covering unit 60 is rotated to open the gas outlet so that the gas in the flow guide cylinder 52 flows out of the gas outlet.

[0056] Specifically, the covering unit 60 is arranged at the gas outlet of the flow guide cylinder 52, and the covering unit 60 and the flow guide cylinder 52 are rotatably connected and have a first state and a second state; in the first state, the covering unit 60 is buckled at the gas outlet of the flow guide cylinder 52, at which time the gas outlet is completely covered, the hot gas flow cannot overflow, and the hot gas flow cannot supplement the branch working part 40, so that the branch working part 40 can produce glass with large thickness; in the second state, the size of the gas outlet is adjusted by rotating the covering unit 60, and then the flow of the hot gas flow overflowing is adjusted, the hot gas flow overflows, and the melting part 10 is convenient to supplement the hot gas flow to the branch working part 40, the temperature of the branch working part 40 is increased, and the production of glass with thin thickness is facilitated.

[0057] Among them, according to the test, when the covering unit 60 is buckled at the gas outlet, that is, in the first state, the temperature in the branch working part 40 is 1063℃, and the working part pressure is 5.6Pa; when the covering unit 60 is rotated to make the opening degree of the covering unit 60 reach 20% of the aperture area of the gas outlet of the flow guide cylinder 52, at this time the temperature of the branch working part 40 is 1065℃, and the working part pressure is 6.0Pa, which meets the production requirements.

[0058] Compared with the prior art, the flow guide unit 50 is arranged, the temperature is adjusted by the internal and external pressure difference, the structure is simple and easy to realize, and the flow guide unit 50 can not only be used in glass production, but also be applied to other large-scale production industries related to temperature adjustment.

[0059] Optionally, the covering unit 60 comprises:

[0060] a baffle 61;

[0061] a pin shaft arranged at the outer edge of the gas outlet of the flow guide cylinder 52, and one side of the baffle 61 is rotatably connected to the pin shaft; and

[0062] a pull rod 62 connected to one side of the baffle 61, and the baffle 61 is rotated by pulling the pull rod 62.

[0063] Specifically, as shown in Figure 3 the covering unit 60 comprises the baffle 61, the pin shaft and the pull rod 62, the baffle 61 is arranged at the gas outlet, the pin shaft is installed at the outer edge of the gas outlet of the flow guide cylinder 52, the baffle 61 is rotatably connected to the flow guide cylinder 52 through the pin shaft, the pull rod 62 is installed on the baffle 61, and the baffle 61 is rotated by pulling the pull rod 62 to adjust the opening degree of the baffle 61 and then adjust the flow of the hot gas flow overflowing.

[0064] Optionally, one end of the pull rod 62 is provided with a buckling part 63, which is away from the air outlet of the flow guide cylinder 52.

[0065] The outer cylinder wall of the flow guide cylinder 52 is provided with a buckle part 64 matched with the buckling part 63.

[0066] In the first state, the buckling part 63 is connected with the buckle part 64.

[0067] Specifically, as shown in Figure 3 and Figure 4 , the upper end of the pull rod 62 and the baffle 61 are connected through a twisting shaft, the lower end of the pull rod 62 is provided with the buckling part 63, the pull rod 62 is vertically arranged outside the flow guide cylinder 52, the buckle part 64 is arranged on the outer cylinder wall of the flow guide cylinder 52, when in the first state, the buckle part 64 is buckled with the buckling part 63, the pull rod 62 is pulled to release the connection between the buckle part 64 and the buckling part 63, the pull rod 62 is rotated to realize the rotation of the baffle 61, when it is needed to be closed, the pull rod 62 is pulled in the reverse direction to rotate the baffle 61, when the buckling part 63 can buckle the buckle part 64, the baffle 61 just covers the air outlet at this time.

[0068] Optionally, the baffle 61 and the pin shaft connection part and the baffle 61 and the pull rod 62 connection part are arranged oppositely.

[0069] Specifically, the baffle 61 and the pin shaft connection part and the baffle 61 and the pull rod 62 connection part are arranged oppositely, which is more convenient for rotating the pull rod 62.

[0070] The above-mentioned is only the optional embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation made under the inventive concept of the utility model, or direct / indirect application in other related technical fields is included in the patent protection range of the utility model.

Claims

1. A float melting furnace structure, characterized by comprising: The float method melting furnace structure comprises: a melting part in which glass liquid is placed; a main line working part connected with the melting part; a branch line working part connected with the melting part; and a flow guiding unit arranged in the branch line working part and connecting the inside of the branch line working part with the outside environment to adjust the internal pressure of the branch line working part so that the hot gas flow of the melting part flows towards the branch line working part. The float method melting furnace structure further comprises a straight passage connecting the melting part with the branch line working part.

2. The float melting furnace structure of claim 1, wherein The flow guiding unit comprises:

3. The float melting furnace structure of claim 1, wherein a through hole arranged in the side wall of the branch line working part; a flow guiding cylinder connecting the through hole with the outside of the branch line working part, the end of the flow guiding cylinder away from the branch line working part being an air outlet; and wherein the gas in the branch line working part flows out through the through hole and the flow guiding cylinder. The through hole is arranged above the liquid surface of the glass liquid in the branch line working part.

4. The float melting furnace structure as claimed in claim 3, wherein The float method melting furnace structure further comprises a covering unit rotatably arranged at the air outlet of the flow guiding cylinder to have a first state and a second state; in the first state, the covering unit is buckled at the air outlet of the flow guiding cylinder; in the second state, the covering unit is rotated to open the air outlet so that the gas in the flow guiding cylinder flows out from the air outlet.

5. The float melting furnace structure as claimed in claim 4, wherein The covering unit comprises:

6. The float melting furnace structure as claimed in claim 5, wherein a baffle; a pin shaft arranged at the outer edge of the air outlet of the flow guiding cylinder, one side of the baffle being rotatably connected to the pin shaft; and a pull rod connected to one side of the baffle, the baffle being rotated by pulling the pull rod. One end of the pull rod is provided with a buckling part away from the air outlet of the flow guiding cylinder; 7. The float melting furnace structure as claimed in claim 6, wherein the outer cylinder wall of the flow guiding cylinder is provided with a buckle part matched with the buckling part; in the first state, the buckling part is buckled and connected with the buckle part. The baffle and the pin shaft are arranged opposite to the baffle and the pull rod.

8. The float melting furnace structure as claimed in claim 7, wherein ​