CN216377890U - Large-tonnage one-kiln six-line photovoltaic glass melting kiln structure - Google Patents

Abstract

The utility model discloses a large-tonnage one-kiln six-line photovoltaic glass melting furnace structure which comprises a melting furnace main body, wherein a glass liquid outflow end of the melting furnace main body is communicated with one end of a neck, the other end of the neck is communicated with a main passage, and the central lines of the melting furnace main body, the neck and the main passage are superposed; six branch passages are symmetrically arranged on two sides of the main passage, three branch passages are arranged on each side, and the central line of each branch passage is vertical to the central line of the main passage; and the outlet of each branch passage is connected with a photovoltaic glass production branch line, and one side of the outlet of each branch passage is provided with a calender maintenance platform. The melting furnace has simple structure design, good heat balance of glass liquid at the outlet of each branch passage, and the arrangement mode of the branch passages is favorable for the process operation of a neck clamping and rolling machine set, can realize large tonnage and low energy consumption, and can simultaneously produce high-grade photovoltaic glass with the thickness of 1.5-3.2 mm.

Description

Large-tonnage one-kiln six-line photovoltaic glass melting kiln structure

Technical Field

The utility model belongs to the technical field of photovoltaic glass production, and particularly relates to a large-tonnage one-kiln six-line photovoltaic glass melting furnace structure.

Background

At present, a photovoltaic glass production line gradually develops towards a large-tonnage and large-scale direction, a four-line, a five-line and a six-line photovoltaic glass production line with a large tonnage are mostly provided with a long transverse passage with the same width behind a neck, and a plurality of branch lines are arranged on the long transverse passage. In this arrangement, the glass flow can flow into the respective branch lines after two large-amplitude turns. Because of the good fluidity of the ultra-white glass, excessive diversion of the liquid flow can cause more severe scouring of the refractory material. In addition, due to the fact that the occupied area of the arrangement mode is too large, the glass liquid stroke is too long after the neck is clamped, and the photovoltaic glass production line which is not suitable for more than six branches is efficient and stable in production.

With the rapid development of the light-weight double-glass photovoltaic module, the thin photovoltaic glass with the thickness of 1.5-2.0mm is in vigorous demand, but the traditional single-glass module with the thickness of 3.2mm still occupies a certain market proportion. The photovoltaic glass production device has the advantages that the photovoltaic glass is efficiently produced, energy is saved, the quality is high, the production is diversified, and the overall competitiveness of the photovoltaic glass products of enterprises is effectively improved.

The existing large-tonnage one-kiln four-wire, one-kiln five-wire and one-kiln six-wire photovoltaic glass production line mostly adopts branch passage average distribution of pulling amount, the product mainly adopts 3.2mm photovoltaic glass, and the difficulty in producing 1.5-2.0mm photovoltaic glass is great.

Chinese patent publication No. CN 109734287A discloses a glass melting furnace with one-furnace multi-line rolling. This patent melting furnace is horizontal flame glass melting furnace or horse shoe flame glass melting furnace, neck one end and melting furnace intercommunication, the other end with indulge the passageway intercommunication, indulge the both ends on passageway and say the intercommunication with a distribution respectively, all be equipped with a plurality ofly on each distribution material says a passageway, each respectively be equipped with one on the branch passageway the overflow mouth, the axial centerline that each distribution material said respectively with indulge the axial centerline of passageway perpendicular, the axial centerline of each branch passageway respectively with a distribution material way perpendicular. After the glass liquid flows out of the neck, the glass liquid respectively flows into the respective distributing material channels through the longitudinal channels, then flows into a plurality of branch channels, flows out through the overflow ports, and enters the calendaring forming. In the patent, the water drum and the stirring operation space at the neck are relatively narrow, the space temperature is high, and the process operation is inconvenient; the glass liquid is required to be turned three times to reach the outlet of the passage after flowing out of the neck, so that more turbulence is easily generated, and the optical quality and the mechanical performance of the glass are reduced due to more turbulence.

Chinese patent publication No. CN 105936582A discloses a six-line glass-liquid passage of a glass melting furnace. The patent is that one end of a glass liquid flow outlet of a melting furnace is connected with a transverse passage, six branch passages which are longitudinally distributed are arranged on the transverse passage, and forming equipment is arranged on each branch passage. The patent is similar to the existing structure of four lines in one kiln and five lines in one kiln, but the glass liquid flow is longer, and the heat dissipation capacity of the glass liquid in the transverse passage and the branch passage is also larger, thus being not beneficial to energy conservation. Meanwhile, the patent proposes that the distance between each forming device and the glass liquid flow outlet is the same, but along with the continuous flow distribution of the glass liquid in the transverse passage, the temperature drop of the glass liquid in the two branch passages at the outermost side is relatively large, the temperature difference of the glass liquid at the outlet between the branch passages is also large, and the forming control is not facilitated.

Chinese patent publication No. CN 212174788U discloses a multi-branch structure of a rolled glass kiln. The neck of the patent is communicated with a melting part of a melting furnace and a main passage, a plurality of branch passages are arranged on two sides of the main passage, the number of the branch passages is 2-12, and the length of the branch passages is gradually shortened along the flowing direction of glass liquid in the main passage. The outflow end of the branch passage is provided with an overflow port. The central line of the melting part of the glass melting furnace, the central line of the neck and the central line of the main passage are overlapped, and the central line of the branch passage is perpendicular to the central line of the main passage. The melting furnace disclosed by the patent is simple in structure, and molten glass flows smoothly in the main passage and the branch passages, but an optimization method for distribution of branch passage drawing amount and calender replacement and maintenance space is not innovatively provided.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a large-tonnage one-kiln six-line photovoltaic glass melting furnace structure which can realize large tonnage and low energy consumption and can simultaneously produce high-grade photovoltaic glass with the thickness of 1.5-3.2 mm.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a large-tonnage one-kiln six-line photovoltaic glass melting furnace structure comprises a melting furnace main body, wherein a glass liquid outflow end of the melting furnace main body is communicated with one end of a neck, the other end of the neck is communicated with a main passage, and the center lines of the melting furnace main body, the neck and the main passage are superposed;

six branch passages are symmetrically arranged on two sides of the main passage, three branch passages are arranged on each side, and the central line of each branch passage is vertical to the central line of the main passage;

each branch passage outlet is connected with a photovoltaic glass production branch line, and one side of each branch passage outlet is provided with a calender maintenance platform.

Furthermore, the lengths of all the branch passages positioned on the same side of the main passage are gradually shortened along the flowing direction of the molten glass in the main passage, the distances from the neck outlet to the outlets of the branch passages are set to be unequal, and the distances are 20-40 m.

Furthermore, the width of the four branch passages close to the melting furnace main body is 3-5m, the daily pulling amount is 150-; the width of the two branch passages far away from the melting furnace main body is 3.5-6m, the daily pulling amount is 200-450t, and the thickness of the produced photovoltaic glass is 1.5-3.2 mm.

Furthermore, the width of the neck is 2.5-5m, the length is 6-9m, the width of the main channel is 3-10m, and the length is 20-30 m.

Further, the distance between the central line of the two branch passages closest to the melting furnace main body and the central line of the two branch passages located in the middle is 5-9m, and the distance between the central line of the two branch passages located in the middle and the central line of the two branch passages farthest from the melting furnace main body is 10-15 m.

Furthermore, the calender overhauling platform is arranged on one side, close to the melting furnace main body, of four branch passage outlets which are closest to and farthest from the melting furnace main body, and the calender overhauling platform is arranged on one side, away from the melting furnace main body, of the two branch passage outlets in the middle.

Further, each of the branch passages is provided with a temperature adjusting device.

Furthermore, the tank walls of the main passage and each branch passage are provided with heat insulation layers, the thickness of the heat insulation layers arranged on the tank walls of the main passage and the branch passages at the side farthest from the melting furnace main body is 1.1-2 times of that of the heat insulation layers arranged on other tank walls, and the heat insulation layers are made of the same material.

Furthermore, the melting furnace main body comprises a feeding tank, a melting part, a regenerative chamber and small furnaces, wherein the feeding tank is arranged at one end of the melting part, the other end of the melting part is a molten glass outflow end, a plurality of small furnaces are arranged on the side walls of two sides of the melting part, and the small furnaces are connected with the regenerative chamber.

Furthermore, a calender set is arranged at the outlet of each branch passage, and a calender overhauling platform is arranged on the side edge of each calender set.

The utility model has the beneficial effects that:

1. the daily melting amount of the melting furnace structure is 1000-1500 tons, and the energy-saving production requirement of the high-quality photovoltaic glass of the calendering forming process of 1.5-3.2mm can be met at the same time. The structure is simple, the glass liquid heat balance of the outlet of each branch passage is good, and the branch passage arrangement mode is favorable for the technological operation of a neck clamping and rolling machine set.

2. The utility model reserves a main passage of a one-kiln one-line cooling part type, eliminates the influence of shunt on melting and clarifying quality, and ensures that molten glass can be fully thermally homogenized after melting and clarifying. The glass liquid flows more smoothly after the neck is clamped, the glass liquid is only turned once to a great extent, the generation of turbulence and the scouring of refractory materials can be greatly reduced, the advantages can ensure that the melting, clarification, homogenization and optical quality of the glass liquid are better guaranteed, and the inherent, optical quality and mechanical strength of a terminal product are better than those of other design modes.

3. The six branch passages are symmetrically arranged on the two sides of the main passage, so that the process arrangement is more reasonable. The branch passages are set to be unequal in width, and production of the bipartite plate or the tripartite plate can be carried out according to production requirements. The branch passage pulling amount is set to be non-evenly distributed, and the photovoltaic glass with different thicknesses can be produced in different branch passages according to production requirements. According to different temperature drop degrees of the passages, the distances from the neck outlet to the outlets of each passage are set to be unequal, and the mode can better guarantee the heat balance among the passages. The branch passages have different intervals, so that the replacement and maintenance space of the calender is more compact, the glass liquid stroke length after the neck is clamped is reduced, the heat dissipation capacity of the glass liquid is reduced, and energy-saving production is realized.

Drawings

FIG. 1 is a schematic structural view of a photovoltaic glass melter configuration of the present invention;

wherein: 1. a feeding pool; 2. a melting section; 3. a regenerator; 4. a small furnace; 5. clamping a neck; 6. a main path; 7. a branch path; 8. a calender group; 9. calender overhauls platform.

Detailed Description

To better illustrate the objects, aspects and advantages of the present invention, the present invention will be further described with reference to specific embodiments. This invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concept of the utility model to those skilled in the art, and the present invention will only be defined by the appended claims.

The utility model provides a large-tonnage one-kiln six-line photovoltaic glass melting furnace structure, includes the melting furnace main part, and the melting furnace main part includes throwing material pond 1, melting portion 2, regenerator 3 and fritter 4, and melting portion 2 adopts the air combustion-supporting, and daily melting volume is 1000 and supplyes 1500 t. The feeding tank 1 is arranged at one end of the melting part 2, the other end of the melting part 2 is a glass liquid outflow end, a plurality of small furnaces 4 are arranged on the side walls of the two sides of the melting part 2, and the small furnaces 4 are connected with the regenerative chamber 3.

The glass flow outlet end of the melting furnace main body (the end of the melting section 2) communicates with one end of the neck 5, the other end of the neck 5 communicates with the main passage 6, and the center lines of the melting furnace main body, the neck 5, and the main passage 6 are aligned.

Six branch passages 7 are symmetrically arranged on two sides of the main passage 6, three branch passages 7 are arranged on each side, and the central line of each branch passage 7 is vertical to the central line of the main passage 6; an outlet of each branch passage 7 is connected with a photovoltaic glass production branch line, and one side of the outlet of each branch passage 7 is provided with a calender maintenance platform 9. Each photovoltaic glass production branch line can produce photovoltaic glass with different thicknesses. Each photovoltaic glass production branch line comprises a calender unit 8, an annealing kiln, a cutting device, an edge grinding device, a cleaning device, a film coating/silk printing device, a toughening device and the like which are connected in sequence through a conveying roller way. The calender set 8 is arranged at the outlet of the branch passage 7 and is connected with the outlet of the branch passage 7, and the calender overhaul platform 9 is arranged at the side edge of the calender set 8.

Furthermore, a calender overhauling platform 9 is arranged on one side, close to the melting furnace main body, of outlets of four branch passages 7 (1 #, 3#, 4#, 6# branch passages) closest to and farthest from the melting furnace main body, and the calender overhauling platform 9 is arranged on one side, far away from the melting furnace main body, of outlets of two branch passages 7 (2 #, 5# branch passages) located in the middle.

Further, the lengths of all the branch passages 7 located on the same side of the main passage 6 become shorter gradually along the flowing direction of the molten glass in the main passage 6, and the distances from the outlet of the neck 5 to the outlets of the branch passages 7 are set to be unequal, and the distances are 20-40 m. The design can ensure that the temperature of the glass liquid at the outlet of each branch passage 7 is relatively balanced thermally.

Furthermore, the width of the four branch passages 7 (1 #, 2#, 5#, 6# branch passages) close to the melting furnace main body is 3-5m, the daily pulling amount is 150-; the width of two branch passages 7 (branch passages 3#, 4 #) far away from the melting furnace main body is 3.5-6m, the daily pulling amount is 200-450t, and the thickness of the produced photovoltaic glass is 1.5-3.2 mm.

Furthermore, the width of the neck 5 is 2.5-5m, the length is 6-9m, the width of the main passage 6 is 3-10m, and the length is 20-30 m.

According to the arrangement requirements of the subsequent forming, annealing, cutting and other processes, the distance between the central line of the two branch passages 7 (1 #, 6# branch passages) closest to the melting furnace main body and the central line of the two branch passages 7 (2 #, 5# branch passages) positioned in the middle is 5-9m, and the distance between the central line of the two branch passages 7 (2 #, 5# branch passages) positioned in the middle and the central line of the two branch passages (3 #, 4# branch passages) farthest from the melting furnace main body is 10-15 m.

Further, each branch passage 7 is provided with a temperature adjusting device. If the temperature of the glass liquid is higher, introducing normal-temperature air for cooling; and if the temperature of the glass liquid is low, introducing natural gas for heating. Through fine adjustment of the temperature of the glass liquid in the branch passages, the glass liquid at the outlet of each branch passage is relatively stable, and the forming requirement is met.

Furthermore, the tank walls of the main passage 6 and each branch passage 7 are provided with heat insulation layers, and the thickness of the heat insulation layers arranged on the tank walls of the main passage 6 and the branch passages 7 (3 # and 4# branch passages) at the farthest side from the melting furnace main body is 1.1-2 times that of the heat insulation layers arranged on other tank walls, and the heat insulation layers are made of the same material.

Compared with the prior art, the utility model has the advantages that the arrangement mode of the main passage 6 and the branch passage 7 of the one-kiln six-line is more reasonable, the glass liquid flow runs more smoothly in the melting furnace, and the melting, clarification, homogenization and optical quality of the glass liquid can be ensured. The widths of the 3# branch passage and the 4# branch passage are increased, so that the temperature difference of outlet glass metal between the branch passages 7 can be effectively reduced, and the forming consistency is improved. Simultaneously, according to the product requirements, the photovoltaic glass with different thicknesses can be efficiently produced by each branch passage 7. The thickness of the heat insulation layer is increased on the side pool wall of the main passages 6, 3# and 4# branch passages far away from the melting part 2, so that the transverse temperature difference of the molten glass of the 3# and 4# branch passages can be effectively reduced, and the temperature uniformity of the molten glass can be improved.

The working process is as follows: after the fuel is subjected to air combustion supporting, the batch materials fed into the melting furnace are forcibly melted into molten glass. The molten glass enters the main passage 6 through the neck 5, and then flows into the branch passages 7 with different lengths in equal quantity. Daily pulling amounts of 1#, 2#, 5#, and 6# branch passages are 120-; the daily pulling amount of the 3# and 4# branch passages is 200-400t, and the photovoltaic glass with the thickness of 2.0-3.2mm is produced.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the utility model.

Claims (8)

1. The utility model provides a six line photovoltaic glass melting furnace structures in large-tonnage one kiln, includes the melting furnace main part, its characterized in that: the glass liquid outflow end of the melting furnace main body is communicated with one end of a neck (5), the other end of the neck (5) is communicated with a main passage (6), and the central lines of the melting furnace main body, the neck (5) and the main passage (6) are superposed;

six branch passages (7) are symmetrically arranged on two sides of the main passage (6), three branch passages (7) are arranged on each side, and the central line of each branch passage (7) is vertical to the central line of the main passage (6);

an outlet of each branch passage (7) is connected with a photovoltaic glass production branch line, and one side of the outlet of each branch passage (7) is provided with a calender maintenance platform (9);

the lengths of all the branch passages (7) positioned on the same side of the main passage (6) are gradually shortened along the flowing direction of glass liquid in the main passage (6), the distances from the outlet of the neck clamp (5) to the outlets of the branch passages (7) are set to be unequal, and the distances are 20-40 m;

the tank walls of the main passage (6) and each branch passage (7) are provided with heat insulation layers, the thickness of the heat insulation layers arranged on the tank walls of the main passage (6) and the branch passages (7) at the side farthest from the melting furnace main body is 1.1-2 times that of the heat insulation layers of other tank walls, and the heat insulation layers are made of the same material.

2. The large-tonnage one-kiln six-line photovoltaic glass melting furnace structure as set forth in claim 1, which is characterized in that: the widths of the four branch passages (7) close to the melting furnace main body are 3-5m, the daily pulling amount is 150-250t, and the thickness of the produced photovoltaic glass is 1.5-2.5 mm; the width of the two branch passages (7) far away from the melting furnace main body is 3.5-6m, the daily pulling amount is 200-450t, and the thickness of the produced photovoltaic glass is 1.5-3.2 mm.

3. The large-tonnage one-kiln six-line photovoltaic glass melting furnace structure as set forth in claim 1, which is characterized in that: the width of the neck (5) is 2.5-5m, the length is 6-9m, the width of the main channel (6) is 3-10m, and the length is 20-30 m.

4. The large-tonnage one-kiln six-line photovoltaic glass melting furnace structure as set forth in claim 1, which is characterized in that: the distance between the central line of the two branch passages (7) nearest to the melting furnace main body and the central line of the two branch passages (7) in the middle is 5-9m, and the distance between the central line of the two branch passages (7) in the middle and the central line of the two branch passages (7) farthest from the melting furnace main body is 10-15 m.

5. The large-tonnage one-kiln six-line photovoltaic glass melting furnace structure as set forth in claim 1, which is characterized in that: leave four nearest and farthest of melting furnace main part branch route (7) export is close to one side of melting furnace main part sets up calender overhauls platform (9), is located two in the middle branch route (7) export is kept away from one side of melting furnace main part sets up calender overhauls platform (9).

6. The large-tonnage one-kiln six-line photovoltaic glass melting furnace structure as set forth in claim 1, which is characterized in that: each branch passage (7) is provided with a temperature adjusting device.

7. The large-tonnage one-kiln six-line photovoltaic glass melting furnace structure as set forth in claim 1, which is characterized in that: the melting furnace main part is including throwing material pond (1), melting portion (2), regenerator (3) and small stove (4), throw material pond (1) set up in the one end of melting portion (2), the other end of melting portion (2) is the glass-liquid outflow end, the both sides lateral wall of melting portion (2) sets up a plurality of regenerator (4), small stove (4) are connected regenerator (3).

8. The large-tonnage one-kiln six-line photovoltaic glass melting furnace structure as set forth in claim 1, which is characterized in that: and the outlet of each branch passage (7) is provided with a calender set (8), and the side edge of each calender set (8) is provided with one calender overhaul platform (9).

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