Curing oven and curing method for glass wool tube production

Abstract

The invention relates to the technical field of curing ovens, and provides a curing oven and a curing method.The curing oven for glass wool pipe production comprises a curing oven body, a curing area and an isolation area are arranged in the curing oven body, and a roller shutter door structure is arranged between the curing area and the isolation area; the glass wool pipe curing device further comprises a curing trolley and a rotary gas injection structure, the curing trolley is movably arranged between the curing area and the isolation area, a glass wool pipe needing to be cured is flatly laid on the upper side and the lower side of the curing trolley, and the rotary gas injection structure is arranged on the bottom side of the roller shutter door structure and communicates with two exhaust pipe sets. The two exhaust pipe sets are perpendicular to each other, and the bottom of the roller shutter door structure is provided with an air injection sealing structure which injects air downwards. By means of the technical scheme, the problem that in the prior art, when a cured glass wool pipe is moved out through a curing oven, heat in the curing oven is prone to dissipation is solved.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of curing oven technology, specifically to a curing oven and curing method for producing glass wool tubes. Background Technology

[0002] Glass wool pipe is an industrial insulation material made of glass fiber and shaped like a tube. It is mainly used to wrap pipes to provide insulation, heat insulation, prevent condensation, and reduce noise. In the production process, glass wool pipe uses natural minerals such as quartz sand, limestone, and dolomite as raw materials. After high-temperature melting, the minerals are made into molten liquid, which is then drawn into extremely fine glass fibers using centrifugal technology. The glass fibers are then shaped using a high-temperature resistant adhesive, and the formed glass wool pipe is then transported to a curing furnace for processing, where it is cured and solidified.

[0003] After the glass wool tubes, which have been shaped with adhesive, are transported into the curing oven, the adhesive inside the tubes undergoes a curing reaction due to the precisely controlled heating environment inside the oven. This permanently transforms the glass wool tubes from a loose and soft indoor state into a strong and stable physical state.

[0004] When using a curing oven to cure glass wool tubes, to prevent the leakage of high temperatures from the oven during tube removal, which would not only affect the continuous stability of the oven's temperature but also cause the temperature at the oven outlet to rise, potentially scalding workers, existing curing ovens address these issues by setting up an isolation zone at the oven outlet. After curing, the glass wool tubes are first transported to this isolation zone. Because the isolation zone is not directly connected to the external environment, the high temperatures from the oven do not directly enter the external environment. By sealing the oven and the isolation zone, the temperature inside the isolation zone is reduced through gas circulation before the glass wool tubes are removed. This method effectively reduces the leakage of heat from the oven to the external environment. However, it inevitably causes some heat to escape from the oven into the isolation zone, resulting in heat loss and reduced temperature balance within the oven. Summary of the Invention

[0005] To overcome the above-mentioned defects, embodiments of the present invention provide a curing oven and curing method for producing glass wool tubes, which solves the technical problem that heat loss inside the curing oven is easily caused when the cured glass wool tube is removed from the curing oven in the prior art.

[0006] This invention provides a curing furnace for glass wool tube production, comprising a curing furnace body, wherein a curing zone and an isolation zone are provided within the curing furnace body, and a roller shutter door structure is provided between the curing zone and the isolation zone, and further comprising: A curing trolley is movable between the curing area and the isolation area, and the glass wool tubes to be cured are laid flat on the upper and lower sides of the curing trolley. A rotating gas injection structure is provided on the bottom side of the roller shutter door structure. Two exhaust pipe groups are connected to the rotating gas injection structure. The two exhaust pipe groups are perpendicular to each other. The two exhaust pipe groups spray gas upward in sequence. The bottom of the roller shutter door structure is provided with a downward-spraying gas sealing structure, which cooperates with the exhaust pipe groups to prevent hot air in the solidification area from entering the isolation area. The dual-layer heating structure is provided at the bottom of the curing area, and a gas cooling structure is provided in the isolation area to reduce the internal temperature of the isolation area and the surface temperature of the curing trolley. The dual-layer heating structure and the gas cooling structure are connected by a gas transfer structure, which injects gas into the rotating gas injection structure and the jet sealing structure.

[0007] At least one embodiment of the present invention provides a curing oven for producing glass wool tubes. The rotating gas injection structure includes a hollow rotating cylinder. The bottom of the curing oven body is provided with an installation groove. Rotating shaft seats are provided on both sides of the installation groove. The hollow rotating cylinder is rotatably disposed between the two rotating shaft seats. The exhaust pipe assembly is connected to the hollow rotating cylinder. The outer wall of the hollow rotating cylinder is rectangular. The bottom of the roller shutter structure abuts against the outer wall of the hollow rotating cylinder to keep the curing area and the isolation area closed.

[0008] At least one embodiment of the present invention provides a curing oven for producing glass wool tubes. The exhaust pipe assembly consists of multiple air blowing valves. A counterweight is fixedly connected between the multiple air blowing valves on the side closest to the curing area. Under the influence of gravity, the hollow rotating cylinder and the multiple air blowing valves rotate toward the curing area. The exhaust end of the air blowing valve is wedge-shaped so that the gas discharge angle is toward the curing area.

[0009] At least one embodiment of the present invention provides a curing oven for producing glass wool tubes, wherein a plurality of actuating plates are fixedly connected to the bottom of the curing trolley, and the actuating plates are used to drive a plurality of air blowing valve tubes on the side away from the curing area to move toward the isolation area.

[0010] At least one embodiment of the present invention provides a curing oven for producing glass wool tubes. By cooperating with the counterweight rod and the actuating plate on the two exhaust pipe groups, the two exhaust pipe groups spray gas during the swinging process, preventing hot gas in the curing area from entering the isolation area.

[0011] At least one embodiment of the present invention provides a curing oven for producing glass wool tubes. The air-jet sealing structure includes an air supply cylinder and an extension pipe. The air supply cylinder is disposed at the bottom of the roller shutter structure. Multiple downward-facing air jets are connected to the air supply cylinder. The extension pipe connects the air supply cylinder and the gas transfer structure.

[0012] At least one embodiment of the present invention provides a curing oven for producing glass wool tubes. The double-layer heating structure includes two curved heat exchange pipes. The two curved heat exchange pipes are arranged longitudinally at the bottom of the curing area. The two curved heat exchange pipes are connected to each other, and a valve is provided on the curved heat exchange pipe located on the lower side.

[0013] At least one embodiment of the present invention provides a curing oven for producing glass wool tubes. The gas cooling structure includes a top gas injection hood and a bottom gas collecting fan. The top gas injection hood is disposed on top of the isolation area. After the curing area and the isolation area are sealed, low-temperature air is injected into the isolation area, and the bottom gas collecting fan discharges the gas from the isolation area.

[0014] At least one embodiment of the present invention provides a curing furnace for producing glass wool tubes. The gas transfer structure includes a gas delivery box, a delivery pump, and branch pipes. The gas delivery box is disposed in the mounting groove and is divided into a hot gas chamber and a cold gas chamber. A bottom gas collecting fan is connected to the cold gas chamber. A curved heat exchange pipe located on the upper side is connected to the hot gas chamber, and a curved heat exchange pipe located on the lower side is connected to the cold gas chamber. An extension pipe is connected to the hot gas chamber. The delivery pump is disposed on the gas delivery box. An inlet pipe is connected between the hot gas chamber and the input end of the delivery pump. The output end of the delivery pump is connected to the hollow rotating cylinder. A branch pipe is connected between the inlet pipe and the cold gas chamber. Flow valves are provided on both the branch pipe and the inlet pipe. An inlet hopper is connected to the bottom of the branch pipe, and the inlet end of the inlet hopper faces the bottom gas collecting fan.

[0015] A curing method for producing glass wool tubes includes the following steps: Step 1, Material Placement: Lay the glass wool tubes that need to be cured flat on the curing trolley; Step 2, Curing: The curing trolley is transported into the curing area through the inlet of the curing oven body. The curing trolley moves within the curing area to complete the curing operation of the glass wool tube. Step 3, Material Discharge: The roller shutter door structure rises, allowing the curing trolley to move the glass wool tubes together to the isolation area; Step 4, Isolation: During the movement of the curing trolley, air is blown between the curing area and the isolation area through the air blowing valve pipe and the air jet head to block the heat in the curing area from entering the isolation area; Step 5, Cooling: Cold air is delivered to the isolation area through the top air injection hood, and then the bottom air collection fan is started to guide the cold air through the curing trolley and then exhaust it through the bottom air collection fan; Step 6: Material unloading: Remove the cooled curing trolley from the isolation area; Step 7: Heat exchange. The gas delivered by the bottom air collecting fan enters the curved heat exchange pipeline through the cold air chamber. After the gas exchanges heat and heats up in the curved heat exchange pipeline, it is ready to be used again.

[0016] The beneficial effects of the embodiments of the present invention are as follows: 1. In this invention, after the glass wool tube on the curing trolley is cured, the roller shutter structure is raised. The curing trolley can carry the glass wool tube into the isolation area. During the movement of the curing trolley into the isolation area, the hollow rotating drum and two exhaust pipe groups are pushed to swing, spraying gas into the curing area to block the hot air in the curing area from entering the isolation area. In addition, the jet sealing structure set at the bottom of the roller shutter structure sprays gas vertically along the lifting area of ​​the roller shutter structure to form an "air curtain" to block the gas from escaping from the curing area.

[0017] 2. In this invention, when gas is injected through the exhaust pipe assembly and the jet sealing structure, the injected gas also enters the curing area. After the curing area and the isolation area are connected, the curing area will also experience temperature loss. This invention utilizes the internal temperature of the curing area to reheat the gas used to cool the curing trolley, and then discharges it through the exhaust pipe assembly and the jet sealing structure. This makes the temperature of the injected gas itself similar to the temperature difference inside the curing area. Furthermore, the internal temperature of the area connecting the curing area and the isolation area is relatively low. After the roller shutter structure closes the curing area and the isolation area, the gas injected into the curing area can quickly compensate for the temperature loss inside the curing area. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of the present invention and these drawings without any creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a partial cross-sectional structural schematic diagram of the present invention; Figure 3 This is a partial cross-sectional schematic diagram of the structure of the roller shutter door, curing trolley, rotating air injection structure, exhaust pipe assembly and air jet sealing structure in this invention; Figure 4 This is a schematic diagram of the jet sealing structure, the double-layer heating structure, and the gas cooling structure in this invention. Figure 5 This is a schematic diagram of the roller shutter door structure, curing trolley, and gas cooling structure in this invention; Figure 6 This is a schematic diagram of the structure of the curing trolley, hollow rotating drum, curved heat exchange pipeline and gas delivery box in this invention; Figure 7 This is a schematic diagram of the hollow rotating cylinder, the curved heat exchange pipeline, and the gas transfer structure in this invention; Figure 8 This is a schematic diagram of the planar structure of the rotating gas injection structure, the jet sealing structure, the double-layer heating structure and the gas transfer structure in this invention.

[0020] In the diagram: 100, rotating gas injection structure; 200, exhaust pipe assembly; 300, jet sealing structure; 400, double-layer heating structure; 500, gas cooling structure; 600, gas transfer structure; 1. Curing oven body; 2. Curing area; 3. Isolation area; 4. Roller shutter door structure; 5. Curing trolley; 6. Hollow rotating drum; 7. Mounting groove; 8. Rotating shaft seat; 9. Air blowing valve pipe; 10. Counterweight bar; 11. Actuating plate; 12. Air supply cylinder; 13. Air nozzle; 14. Extension pipe; 15. Bending heat exchange pipeline; 16. Valve; 17. Top air injection hood; 18. Bottom air collecting fan; 19. Air delivery box; 20. Hot air chamber; 21. Cold air chamber; 22. Delivery pump equipment; 23. Air inlet pipeline; 24. Branch pipeline; 25. Flow valve; 26. Air inlet hopper; 27. Outlet; 28. Drive belt equipment; 29. ​​Rectangular mounting plate. Detailed Implementation The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it.

[0021] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0022] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0023] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0024] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0025] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] Example 1, as Figures 1 to 3As shown, this invention discloses a curing oven for producing glass wool tubes, including a curing oven body 1. The curing oven body 1 is provided with a curing zone 2 and an isolation zone 3. A roller shutter structure 4 is provided between the curing zone 2 and the isolation zone 3. The curing zone 2 is provided with multiple interconnected areas for preheating, heating and cooling of the glass wool tube, which is used to cure the adhesive components in the shaped glass wool tube. The cooling section in the curing zone 2 is connected to the isolation zone 3. After the cured glass wool tube has been initially cooled in the cooling section, the roller shutter structure 4 is released from the seal between the curing zone 2 and the isolation zone 3, and the curing trolley 5 and the glass wool tube are driven into the isolation zone 3. Finally, the curing trolley 5 and the glass wool tube are removed from the isolation zone 3 through the outlet 27. The roller shutter structure 4 is a prior art device used to separate the curing zone 2 and the isolation zone 3, and has been widely used in the field.

[0027] like Figures 1 to 6 As shown, in this embodiment, a curing trolley 5 is also included. The curing trolley 5 is movably positioned between the curing area 2 and the isolation area 3. The glass wool tubes to be cured are laid flat on the upper and lower sides of the curing trolley 5. Multiple actuating plates 11 are fixedly connected to the bottom of the curing trolley 5. The actuating plates 11 are used to drive multiple air blowing valve tubes 9 on the side away from the curing area 2 to move towards the isolation area 3. Both the curing area 2 and the isolation area 3 are provided with a transmission belt device 28 to drive the curing trolley 5 to move between the curing area 2 and the isolation area 3. When the curing trolley 5 moves towards the isolation area 3, the multiple actuating plates 11 sequentially actuate the air blowing valve tubes 9 located on the upper side to flip towards the isolation area 3.

[0028] like Figures 2 to 8 As shown, in this embodiment, the rotating gas injection structure 100 is disposed on the bottom side of the roller shutter door structure 4. The rotating gas injection structure 100 includes a hollow rotating cylinder 6. The inner bottom of the curing oven body 1 is provided with an installation groove 7. Rotating shaft seats 8 are provided on both sides of the installation groove 7. The hollow rotating cylinder 6 is rotatably disposed between the two rotating shaft seats 8. The exhaust pipe assembly 200 is connected to the hollow rotating cylinder 6. The outer wall of the hollow rotating cylinder 6 is rectangular. The bottom of the roller shutter door structure 4 abuts against the outer wall of the hollow rotating cylinder 6 to keep the curing area 2 and the isolation area 3 closed. When it is necessary to inject gas into the two exhaust pipe assemblies 200, the gas is injected into the hollow rotating cylinder 6 and then enters the two exhaust pipe assemblies 200. When it is necessary to swing the two exhaust pipe assemblies 200, the hollow rotating cylinder 6 is rotated between the two rotating shaft seats 8 to adjust the position of the two exhaust pipe assemblies 200.

[0029] like Figures 2 to 8As shown, in this embodiment, the rotating gas injection structure 100 is connected to two exhaust pipe groups 200, which are perpendicular to each other. The two exhaust pipe groups 200 sequentially spray gas upwards. Each exhaust pipe group 200 consists of multiple air blowing valve pipes 9. A counterweight rod 10 is fixedly connected between the multiple air blowing valve pipes 9 near the curing area 2. Under the influence of gravity, the hollow rotating cylinder 6 and the multiple air blowing valve pipes 9 rotate towards the curing area 2. The exhaust end of the air blowing valve pipe 9 is wedge-shaped so that the gas discharge angle is towards the curing area 2. After the gas in the hollow rotating drum 6 enters into multiple air blowing valve pipes 9, the gas is discharged through the air blowing valve pipes 9. The air blowing valve pipes 9 are equipped with closing valves. When it is necessary for the two sets of multiple air blowing valve pipes 9 distributed in different positions to prevent the heat in the curing area 2 from entering the isolation area, the two sets of exhaust pipe groups 200 discharge gas together. After the roller shutter structure 4 is closed inside the curing area 2 and the isolation area 3, the multiple air blowing valve pipes 9 located on one side of the curing area 2 remain vertical, so that they spray gas individually to increase the internal temperature of the curing area 2.

[0030] like Figures 2 to 8 As shown, in this embodiment, the counterweight rod 10 and the actuating plate 11 work together to make the two exhaust pipe groups 200 spray gas during the swinging process, preventing the hot air in the curing area 2 from entering the isolation area 3. In order to increase the blowing range of the two sets of blowing valve pipes 9 and achieve effective interception of the hot air in the curing area 2, when the curing trolley 5 moves towards the isolation area 3, the multiple actuating plates 11 at the bottom of the curing trolley 5 will drive the multiple blowing valve pipes 9 near the isolation area 3. The tubes are flipped into the isolation area 3. When one of the actuating plates 11 stops contacting the air blowing valve tube 9, the air blowing valve tube 9 is flipped back to the curing area 2 under the action of the counterweight rod 10. Through the above technical features, the hollow rotating drum 6 and the two sets of air blowing valve tubes 9 can swing. After the curing trolley 5 is completely removed from the top of the hollow rotating drum 6, the set of air blowing valve tubes 9 is kept vertical under the action of the counterweight rod 10, and cooperates with the air jet sealing structure 300 to complete the isolation of the gas in the curing area 2.

[0031] It should be further explained that a rectangular mounting plate 29 is provided at the bottom of the roller shutter structure 4. The bottom end of the rectangular mounting plate 29 abuts against the top of the hollow rotating cylinder 6, so that the curing area 2 and the isolation area 3 are separated. When the rectangular mounting plate 29 descends, it will also cooperate with the air blowing valve pipe 9 located on the upper side, driving the hollow rotating cylinder 6 to rotate. This causes the multiple air blowing valve pipes 9 on the side where the counterweight rod 10 is installed to flip upward, keeping the air blowing valve pipe 9 vertical. This facilitates the subsequent discharge of hot air in the hot air chamber 20 through the multiple air blowing valve pipes 9 on this side, thereby increasing the internal temperature of the curing area 2.

[0032] like Figures 2 to 8 As shown, in this embodiment, the bottom of the roller shutter structure 4 is provided with a downward-spraying air sealing structure 300, which cooperates with the exhaust pipe assembly 200 to prevent hot air in the curing area 2 from entering the isolation area 3. The air sealing structure 300 includes an air supply cylinder 12 and an extension pipe 14. The air supply cylinder 12 is located at the bottom of the roller shutter structure 4, and multiple downward-spraying air nozzles 13 are connected to the air supply cylinder 12. The extension pipe 14 connects the air supply cylinder 12 and the gas transfer structure 600. When the roller shutter structure 4 rises, causing the curing trolley 5 to move from the curing area 2 to the isolation area 3, hot air is transported to the air supply cylinder 12 through the extension pipe 14. Then, the hot air is sprayed downward through the multiple air nozzles 13 to form an "air curtain", preventing the hot air in the curing area 2 from escaping into the isolation area 3. The multiple air nozzles 13 and multiple blowing valve pipes 9 are arranged alternately.

[0033] like Figures 4 to 8 As shown, in this embodiment, a double-layer heating structure 400 is provided at the bottom of the curing zone 2. The double-layer heating structure 400 includes two curved heat exchange pipes 15, which are arranged longitudinally at the bottom of the curing zone 2 and are connected to each other. A valve 16 is provided on the lower curved heat exchange pipe 15 to transport the gas generated in the isolation zone 3 for cooling the curing trolley 5 and glass wool tube and reducing the internal temperature of the isolation zone 3 to the lower curved heat exchange pipe 15. Then, the gas flows between the upper and lower curved heat exchange pipes 15 and cooperates with the waste heat circulation equipment in the curing oven body 1 to increase the internal temperature of the curved heat exchange pipe 15. The valve 16 can close the curved heat exchange pipe 15 to control whether the gas enters the curved heat exchange pipe 15.

[0034] like Figures 4 to 8 As shown, in this embodiment, a gas cooling structure 500 is provided in the isolation area 3 to reduce the internal temperature of the isolation area 3 and the surface temperature of the curing trolley 5. The gas cooling structure 500 includes a top gas injection hood 17 and a bottom gas collecting fan 18. The top gas injection hood 17 is located at the top of the isolation area 3. After the curing area 2 and the isolation area 3 are closed, low-temperature air is injected into the isolation area 3. The bottom gas collecting fan 18 discharges the gas in the isolation area 3. After the curing trolley 5 is completely moved into the isolation area 3 and the roller shutter structure 4 is lowered to keep the curing area 2 and the isolation area 3 closed, an external air source is used to communicate with the top gas injection hood 17 to deliver cold air to the isolation area 3 through the top gas injection hood 17. Then, the bottom gas collecting fan 18 is started to guide the cold air through the curing trolley 5 and then discharge it through the bottom gas collecting fan 18.

[0035] like Figures 4 to 8As shown, in this embodiment, the double-layer heating structure 400 and the gas cooling structure 500 are connected by a gas transfer structure 600. The gas transfer structure 600 injects gas into the rotating gas injection structure 100 and the jet sealing structure 300. The gas transfer structure 600 includes a gas delivery box 19, a delivery pump device 22, and branch pipes 24. The gas delivery box 19 is set in the mounting groove 7 and is divided into a hot gas chamber 20 and a cold gas chamber 21. The bottom gas collecting fan 18 is connected to the cold gas chamber 21. The upper curved heat exchange pipe 15 is connected to the hot gas chamber 20, and the lower curved heat exchange pipe 15 is connected to the cold gas chamber 21. The extension pipe 14 is connected to the hot gas chamber 20. The delivery pump device 22 is set on the gas delivery box 19. An air inlet pipe 23 is connected between the chamber 20 and the input end of the delivery pump device 22. The output end of the delivery pump device 22 is connected to the hollow rotating cylinder 6. A branch pipe 24 is connected between the air inlet pipe 23 and the cold air chamber 21. A flow valve 25 is installed on both the branch pipe 24 and the air inlet pipe 23. An air inlet hopper 26 is connected to the bottom of the branch pipe 24. The inlet end of the air inlet hopper 26 faces the bottom air collecting fan 18. The gas delivered by the bottom air collecting fan 18 enters the curved heat exchange pipe 15 through the cold air chamber 21. The gas is then heated in the curved heat exchange pipe 15 and then delivered to the hot air chamber 20. The delivery pump device 22 is used to deliver the hot gas through the air inlet pipe 23 and the delivery pump device 22 to the hollow rotating cylinder 6 to replenish the hot gas for the blowing valve pipe 9. Furthermore, the hot air in the hot air chamber 20 can enter the air supply cylinder 12 through the extension pipe 14, and a pressure valve is provided at the bottom of the extension pipe 14 to control the hot air to enter the air supply cylinder 12 through the extension pipe 14 to replenish the gas for the jet head 13.

[0036] It should be further explained that the gas heated by heat exchange in the curing zone 2 generally has a high temperature, while the side of the curing zone 2 that is close to the isolation zone 3 is the cooling section, which does not have a high temperature inside. Therefore, in order to avoid the cooling section in the curing zone 2 being too hot and affecting its own cooling effect, the air inlet hopper 26 and the branch pipe 24 are used to transport the cold air in the cold air chamber 21 and the hot air in the hot air chamber 20 together by the delivery pump device 22, so that the hot air and cold air are mixed and then sprayed between the curing chamber and the isolation chamber, thus avoiding affecting the internal temperature of the curing chamber. After the subsequent roller shutter structure 4 separates the curing zone 2 and the isolation zone 3, pure hot air is discharged through multiple air blowing valve pipes 9 on one side to increase the internal temperature of the curing zone 2.

[0037] The working principle of the curing oven used in the production of glass wool tubes: The glass wool tubes to be cured are laid flat on the curing trolley 5. The curing trolley 5 is then transported into the curing zone 2 through the inlet of the curing oven body 1. The curing trolley 5 moves within the curing zone 2 to complete the curing of the glass wool tubes. Then, the curing trolley 5 is moved to one side of the roller shutter structure 4. The roller shutter structure 4 rises, allowing the curing trolley 5 to move together with the glass wool tubes into the isolation zone 3. During the movement of the curing trolley 5, air is blown between the curing zone 2 and the isolation zone 3 through the air blowing valve pipe 9 and the air jet head 13 to prevent the heat in the curing zone 2 from entering the isolation zone 3. After the curing trolley 5 has been completely moved into the isolation area 3, the roller shutter structure 4 is used to re-isolate the curing area 2 and the isolation area 3. Then, the cold air is delivered to the isolation area 3 through the top air injection hood 17. Then, the bottom air collecting fan 18 is started to guide the cold air through the curing trolley 5 and then discharge it through the bottom air collecting fan 18. The gas delivered by the bottom air collecting fan 18 enters the curved heat exchange pipe 15 through the cold air chamber 21. Then, the gas is heated in the curved heat exchange pipe 15 and then delivered to the hot air chamber 20. The delivery pump equipment 22 is used to deliver the hot air through the air inlet pipe 23 and the delivery pump equipment 22 to the hollow rotating drum 6 to replenish the hot air for the blowing valve pipe 9.

[0038] Example 2: Based on a curing oven for glass wool tube production, the present invention also proposes a curing method for glass wool tube production, specifically including the following steps: Step 1, Material Placement: Lay the glass wool tubes that need to be cured flat on the curing trolley 5; Step 2, Curing: The curing trolley 5 is transported into the curing zone 2 through the inlet of the curing oven body 1. The curing trolley 5 moves within the curing zone 2 to complete the curing operation of the glass wool tube. Step 3, Material Discharge: The roller shutter door structure 4 rises, allowing the curing trolley 5 to move together with the glass wool tube into the isolation area 3; Step 4, Isolation: During the movement of the curing trolley 5, air is blown between the curing area 2 and the isolation area 3 through the air blowing valve pipe 9 and the air jet head 13 to block the heat in the curing area 2 from entering the isolation area 3. Step 5, Cooling: Cold air is delivered to the isolation area 3 through the top air injection hood 17, and then the bottom air collecting fan 18 is started to guide the cold air through the curing trolley 5 and then discharge it through the bottom air collecting fan 18. Step 6, Material Discharge: Remove the cooled curing trolley 5 from the isolation area 3; Step 7: Heat exchange. The gas delivered by the bottom air collecting fan 18 enters the curved heat exchange pipe 15 through the cold air chamber 21. After the gas exchanges heat and heats up in the curved heat exchange pipe 15, it is ready to be used again.

[0039] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A curing oven for producing glass wool tubes, comprising a curing oven body (1), wherein a curing zone (2) and an isolation zone (3) are provided within the curing oven body (1), and a roller shutter door structure (4) is provided between the curing zone (2) and the isolation zone (3), characterized in that, Also includes: A curing trolley (5) is moved between the curing area (2) and the isolation area (3) to lay the glass wool tubes to be cured on the upper and lower sides of the curing trolley (5). A rotating gas injection structure (100) is provided on the bottom side of the roller shutter structure (4). Two exhaust pipe groups (200) are connected to the rotating gas injection structure (100). The two exhaust pipe groups (200) are perpendicular to each other. The two exhaust pipe groups (200) spray gas upward in sequence. The bottom of the roller shutter structure (4) is provided with a downward-spraying gas sealing structure (300), which cooperates with the exhaust pipe group (200) to prevent the hot air in the solidification area (2) from entering the isolation area (3). A double-layer heating structure (400) is provided at the bottom of the curing area (2), and a gas cooling structure (500) is provided in the isolation area (3) to reduce the internal temperature of the isolation area (3) and the surface temperature of the curing trolley (5). The double-layer heating structure (400) and the gas cooling structure (500) are connected by a gas transfer structure (600). The gas transfer structure (600) injects gas into the rotating gas injection structure (100) and the jet sealing structure (300).

2. The curing oven for producing glass wool tubes according to claim 1, characterized in that, The rotating gas injection structure (100) includes: Hollow rotating cylinder (6), the bottom of the curing furnace body (1) is provided with an installation groove (7), and rotating shaft seats (8) are provided on both sides of the installation groove (7). The hollow rotating cylinder (6) is rotatably disposed between the two rotating shaft seats (8), and the exhaust pipe group (200) is connected to the hollow rotating cylinder (6). The outer wall of the hollow rotating cylinder (6) is rectangular, and the bottom of the roller shutter structure (4) abuts against the outer wall of the hollow rotating cylinder (6) to keep the solidified area (2) and the isolation area (3) closed.

3. The curing oven for producing glass wool tubes according to claim 2, characterized in that, The exhaust pipe assembly (200) is composed of multiple air blowing valve pipes (9), wherein a counterweight rod (10) is fixedly connected between the multiple air blowing valve pipes (9) on the side close to the curing area (2), and under the influence of gravity, the hollow rotating cylinder (6) and the multiple air blowing valve pipes (9) rotate toward the curing area (2). The exhaust end of the blowing valve pipe (9) is wedge-shaped so that the gas discharge angle is directed toward the curing area (2).

4. A curing oven for producing glass wool tubes according to claim 3, characterized in that, The bottom of the curing trolley (5) is fixedly connected with multiple actuating plates (11), which are used to drive multiple air blowing valves (9) on the side away from the curing area (2) to move towards the isolation area (3).

5. A curing oven for producing glass wool tubes according to claim 4, characterized in that, By cooperating with the counterweight (10) and the actuating plate (11) on the two exhaust pipe groups (200), the two exhaust pipe groups (200) spray gas during the swinging process, preventing the hot gas in the solidified area (2) from entering the isolation area (3).

6. A curing oven for producing glass wool tubes according to claim 5, characterized in that, The jet sealing structure (300) includes: An air supply cylinder (12) is provided at the bottom of the roller shutter structure (4), and a plurality of downward-facing air jet heads (13) are connected to the air supply cylinder (12). An extension pipe (14) is connected between the gas supply cylinder (12) and the gas transfer structure (600).

7. A curing oven for producing glass wool tubes according to claim 6, characterized in that, The double-layer heating structure (400) includes: Two curved heat exchange pipes (15) are arranged longitudinally at the bottom of the curing area (2), and the two curved heat exchange pipes (15) are connected to each other, and a valve (16) is provided on the curved heat exchange pipe (15) located on the lower side.

8. A curing oven for producing glass wool tubes according to claim 7, characterized in that, The gas cooling structure (500) includes: Top air injection hood (17) is set on top of the isolation area (3). After the solidification area (2) and the isolation area (3) are closed, low temperature air is injected into the isolation area (3). Bottom gas collecting fan (18) discharges gas from the isolation area (3).

9. A curing oven for producing glass wool tubes according to claim 8, characterized in that, The gas transfer structure (600) includes: Gas delivery box (19) is set in the mounting groove (7). The gas delivery box (19) is divided into a hot gas chamber (20) and a cold gas chamber (21). The bottom gas collecting fan (18) is connected to the cold gas chamber (21). The curved heat exchange pipe (15) located on the upper side is connected to the hot gas chamber (20). The curved heat exchange pipe (15) located on the lower side is connected to the cold gas chamber (21). The extension pipe (14) is connected to the hot gas chamber (20). The delivery pump device (22) is installed on the gas delivery box (19), and the hot gas chamber (20) is connected to the input end of the delivery pump device (22) by an air inlet pipe (23). The output end of the delivery pump device (22) is connected to the hollow rotating cylinder (6). A branch pipe (24) is connected between the air intake pipe (23) and the cold air chamber (21). Both the branch pipe (24) and the air intake pipe (23) are equipped with flow valves (25). The bottom of the branch pipe (24) is connected to an air intake bucket (26). The inlet end of the air intake bucket (26) faces the bottom air collecting fan (18).

10. A curing method for producing glass wool tubes, using a curing oven for producing glass wool tubes as described in claim 9, characterized in that, Includes the following steps: Step 1, Material placement: Lay the glass wool tubes that need to be cured flat on the curing trolley (5); Step 2, Curing: The curing trolley (5) is transported into the curing area (2) through the inlet of the curing oven body (1). The curing trolley (5) moves within the curing area (2) to complete the curing operation of the glass wool tube. Step 3, material discharge: The roller shutter structure (4) rises, so that the curing trolley (5) can move the glass wool tube together to the isolation area (3); Step 4, Barrier: During the movement of the curing trolley (5), air is blown between the curing area (2) and the isolation area (3) through the air blowing valve pipe (9) and the air jet head (13) to block the heat in the curing area (2) from entering the isolation area (3); Step 5, Cooling: The cold air is delivered to the isolation area (3) through the top air injection hood (17), and then the bottom air collecting fan (18) is started to guide the cold air through the curing trolley (5) and then discharged through the bottom air collecting fan (18); Step 6, Material Discharge: Remove the cooled curing trolley (5) from the isolation area (3); Step 7: Heat exchange. The gas delivered by the bottom gas collecting fan (18) enters the curved heat exchange pipeline (15) through the cold air chamber (21). After the gas is heated by heat exchange in the curved heat exchange pipeline (15), it waits to be used again.

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