A curing furnace for high elastic glass wool

Abstract

The present invention discloses a curing furnace for high-elastic glass wool. In the glass wool fixing process, the glass wool is firstly preheated by a preheating section, and then heated and cured by the lower air inlet and upper air outlet of the first curing section, and heated and cured by the upper air inlet and lower air outlet of the second curing section, so as to ensure the curing effect of the glass wool; and the high-temperature exhaust gas discharged from the first curing section and the second curing section enters a high-temperature exhaust gas chamber, and can be transported to the first curing section by a first circulation fan through a first heat recovery pipe, and transported to the second curing section by a second circulation fan through a second heat recovery pipe for hot air circulation. In addition, the exhaust gas in the high-temperature exhaust gas chamber can be transported to the preheating section through a preheating circulation mechanism to preheat the glass wool, and energy consumption can be saved through reasonable hot air circulation; at the same time, the barrier sealing device is provided, so that the hot air in the preheating section, the first curing section and the second curing section can be controlled separately, so as to avoid the situation of air leakage at the connection.

Description

Technical Field

[0001] The invention relates to the technical field of glass wool production, and in particular to a curing furnace for high-elastic glass wool. Background Art

[0002] During the production process of high-elastic glass wool (the high elasticity comes from the elastic properties of glass fiber, and it can also be directly called glass wool), it goes through a curing process. The principle of the curing process is: the glass wool containing uncured resin input from the previous process is pressurized and conveyed by the upper and lower conveyor belts in the curing furnace. At the same time, hot air at a certain temperature is input to penetrate the cotton layer, continuously drying and fixing the resin, fixing the structure and shape of the product, and finally obtaining a glass wool product with a certain capacity and a certain thickness.

[0003] For example, a Chinese patent with authorization announcement number CN214528738U and authorization announcement date of October 29, 2021 discloses "A glass wool energy-saving and environmentally friendly curing furnace". It collects high-temperature exhaust gas from the furnace and transports it to the furnace preheating area of ​​the curing furnace by a circulating fan to preheat the glass wool and improve the curing efficiency of the glass wool. The temperature reduced after preheating is then transported to the furnace by a circulating fan for circulation.

[0004] However, the curing furnace itself will generate high-temperature exhaust gas during the curing process, and there is no need to borrow the high-temperature exhaust gas from the furnace. The present application is to use the high-temperature exhaust gas generated by the curing furnace itself to preheat the glass wool, thereby improving the curing efficiency of the glass wool. Summary of the invention

[0005] The purpose of the present invention is to provide a curing furnace for high-elastic glass wool, which has the function of improving the fixing efficiency of the glass wool.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: a curing furnace for high-elastic glass wool, comprising a curing furnace main body, a chain conveying system arranged in the curing furnace main body, and a hot air circulation system, the curing furnace main body comprising a preheating section, a connecting channel, a first curing section with lower air inlet and upper air outlet, a connecting channel, and a second curing section with upper air inlet and lower air outlet connected for the first time, the chain conveying system is provided with three and is respectively located in the preheating section, the first curing section, and the second curing section; the hot air circulation system comprises a first hot air furnace arranged at the top of the first curing section and having a liquefied gas burner, a first circulation fan arranged on the first hot air furnace, a first air inlet duct arranged below the first circulation fan and one side of the first curing section, a first exhaust fan arranged at the top of the first curing section, a first air outlet duct arranged above the first exhaust fan and the other side of the first curing section, and a first hot air furnace arranged at the top of the second curing section. A second hot blast furnace with a liquefied gas burner, a second circulation fan arranged on the second hot blast furnace, a second air inlet duct arranged above the second circulation fan and one side of the second curing section, a second exhaust fan arranged at the top of the second curing section, a second air outlet duct arranged below the second exhaust fan and the other side of the second curing section, a high-temperature exhaust chamber connected to the outlet ends of the first exhaust fan and the second exhaust fan, a first heat recovery duct connected to the high-temperature exhaust chamber and the air inlet end of the first circulation fan, a second heat recovery duct connected to the high-temperature exhaust chamber and the air inlet end of the second circulation fan, a preheating circulation mechanism for realizing heat circulation in the curing section and the high-temperature exhaust chamber, the high-temperature exhaust chamber being arranged at the top of the preheating section, the first curing section and the second curing section; a blocking sealing device is arranged in the middle of the connecting channel for glass wool to pass through during movement and to disconnect the air flow between the preheating section and the first curing section and between the first curing section and the second curing section.

[0007] By adopting the above technical scheme, in the glass wool fixing process, the glass wool is first preheated by the preheating section, and then heated and cured by the lower air inlet and upper air outlet of the first curing section, and heated and cured by the upper air inlet and lower air outlet of the second curing section, so as to ensure the curing effect of the glass wool; and the high-temperature exhaust gas discharged from the first curing section and the second curing section enters the high-temperature exhaust gas chamber, and can be transported to the first curing section by the first circulation fan through the first heat recovery pipe, and transported to the second curing section by the second circulation fan through the second heat recovery pipe for hot air circulation. In addition, the exhaust gas in the high-temperature exhaust gas chamber can be transported to the preheating section through the preheating circulation mechanism to preheat the glass wool, and energy consumption can be saved through reasonable hot air circulation; at the same time, a blocking sealing device is provided in the middle of the connecting channel for the glass wool to pass through during movement and to disconnect the air flow between the preheating section and the first curing section, and between the first curing section and the second curing section. At this time, the hot air in the preheating section, the first curing section and the second curing section can be controlled separately to avoid wind blowby at the connection.

[0008] The present invention is further configured as follows: the preheating circulation mechanism includes a third circulation fan arranged at the top of the curing section, a third heat recovery duct connected between the high-temperature exhaust chamber and the third circulation fan, a third air inlet duct arranged between the air outlet end of the third circulation fan and the cooling section, a third exhaust fan arranged at the top of the preheating section, and a third air outlet duct connected between the preheating section and the third exhaust fan; the high-temperature exhaust chamber is communicated with the air outlet end of the third exhaust fan.

[0009] By adopting the above technical scheme, during the operation of the preheating circulation mechanism, hot air circulates along the high-temperature exhaust chamber, the third heat recovery duct, the third circulation fan, the third air inlet duct, the preheating section, the third air outlet duct, the third exhaust fan, and the high-temperature exhaust chamber to preheat the glass wool in the preheating section.

[0010] The present invention is further configured as follows: the high-temperature exhaust chamber is in a "U" shape, the bending part of the high-temperature exhaust chamber is located at the top of the preheating section, the second exhaust fan, the first exhaust fan and the third exhaust fan are sequentially connected to one side of the high-temperature exhaust chamber extending in a straight direction, and the third heat recovery pipe, the first heat recovery pipe and the second heat recovery pipe are sequentially connected to the other side of the high-temperature exhaust chamber extending in a straight direction.

[0011] By adopting the above technical solution, the second exhaust fan, the first exhaust fan and the third exhaust fan are connected with one side of the high-temperature exhaust chamber extending in a straight line direction in sequence. At this time, when the high-temperature exhaust gas in the preheating section, the first curing section and the second curing section enters the high-temperature exhaust chamber and is transported to the other side along the high-temperature exhaust chamber, the third heat recovery pipe is first connected with the high-temperature exhaust chamber to ensure the hot air temperature entering the preheating section to achieve a good preheating effect.

[0012] The present invention is further configured as follows: the preheating section, the first curing section, and the second curing section are all provided with inlets and outlets for glass wool to enter and exit at the corresponding connecting channels, the connecting channels include two square connecting sleeves located at both ends, a square sealing ring arranged on the end surface of the square connecting sleeve, a first square tube arranged on one of the square connecting sleeves, a second square tube arranged on the other square connecting sleeve and telescopically arranged on the periphery of the first square tube, a locking assembly arranged between the first square tube and the second square tube, and a plurality of plug-in rails, two plug-in rails distributed along the vertical direction are respectively arranged on both sides of each of the inlets and outlets, the plug-in rails have a vertical rail groove extending along the vertical direction, and an inclined rail groove connected to the lower end of the vertical rail groove and extending toward the direction close to the inlet and outlet, two sliding columns are respectively arranged on both sides of the square connecting sleeve to realize plugging in the plug-in rail from bottom to bottom, when the sliding column slides to the middle of the inclined rail groove, the square sealing ring of the square connecting sleeve is pressed against the periphery of the inlet and outlet, the blocking sealing device is respectively detachably arranged in the two square connecting sleeves, and different types of blocking sealing devices are replaced to achieve adaptation to different types of glass wool.

[0013] By adopting the above technical scheme, since the width and thickness of different types of glass wool are different, a detachable connecting channel can be set to replace the internal barrier sealing device, so as to facilitate the use of different types of glass wool; during the installation of the connecting channel, the sliding columns on both sides of the square connecting sleeve move downward along the plug-in track. Since the plug-in track includes a vertical track groove extending in the vertical direction and an inclined track groove connected to the lower end of the vertical track groove and extending toward the direction close to the inlet and outlet, the square sealing ring on the square connecting sleeve can be pressed against the surrounding side of the inlet and outlet for sealing under the component force of gravity. At the same time, the problem of the square connecting sleeves at both ends moving away from each other during installation can be solved by the telescopic setting of the first square tube and the second square tube, and after being fixed with the locking assembly, the connecting pipe can be fixed so that the connecting pipe will not loosen, and finally it has the function of facilitating the disassembly of the connecting pipe and automatically sealing after installation.

[0014] The present invention is further configured as follows: guide grooves extending along the length direction are provided on both sides of the second square tube, guide blocks slidably connected to the guide grooves are provided on both sides of the first square tube, and the locking assembly includes two locking knob bolts threadedly connected to the guide blocks, and a pressure ring arranged on the locking knob bolts and pressed against the circumference of the second square tube.

[0015] By adopting the above technical solution, when the first square tube and the second square tube need to be fixed, the locking knob bolt is tightened so that the pressure ring on the locking knob bolt is pressed against the circumference of the second square tube, thereby fixing the first square tube and the second square tube.

[0016] The present invention is further configured as follows: an embedding groove is provided at the opening of the square connecting sleeve near the inlet and outlet, the blocking sealing device includes a square frame embedded in the embedding groove, a square rubber sheet is provided in the square frame and is in contact with the upper and lower surfaces and both side surfaces of the glass wool, the square rubber sheet is provided with an open groove at the turning point of the inner circle, the square rubber sheet in the square frame is provided with two layers, and the inner circle of the square frame covers the range of the inlet and outlet.

[0017] By adopting the above technical scheme, the blocking sealing device includes a square frame and a square rubber sheet. The channel in the middle of the square rubber sheet can be adapted to the width and thickness of the glass wool of the corresponding model to achieve contact with the surrounding side of the glass wool, thereby achieving sealing and preventing wind leakage; at the same time, the square rubber sheet is provided with an open groove at the turning point of the inner circle. At this time, after contacting with the moving glass wool, a certain deformation can be generated to reduce the friction between the glass wool and ensure the smoothness of the glass wool during operation.

[0018] The present invention is further configured as follows: one of the end faces of the square frame and the end face of the square connecting sleeve are located on the same plane, the bottom of the square connecting sleeve is provided with two connecting grooves which are connected to the embedding grooves and have a "convex"-shaped cross-section, the square frame is provided with limiting grooves at the corresponding connecting grooves, and a limiting mechanism is provided between the square connecting sleeve and the bottom of the inlet and outlet, which is embedded in the limiting groove for limiting after the square connecting sleeve is installed.

[0019] By adopting the above technical scheme, since the barrier sealing device needs to be replaced with different types of glass wool, the barrier sealing device is preferably provided with the function of convenient disassembly and assembly. In this scheme, it is installed by directly embedding it in the embedding groove, which is very convenient in installation. However, since the square connecting tube and the peripheral sides of the inlet and outlet are sealed by the deformation of the square sealing ring, the square frame directly embedded in the embedding groove is not easy to directly contact the peripheral sides of the inlet and outlet. At this time, the square frame is prone to slight shaking after contacting the moving glass wool, so a limiting mechanism is provided to solve the problem of slight shaking of the square frame.

[0020] The present invention is further configured as follows: the limiting mechanism includes a limiting shaft which is telescopically arranged in the connecting groove and has an annular portion on the circumference of the lower end, a compression spring which is sleeved on the limiting shaft and has both ends pressed against the stepped surface of the connecting groove and the annular portion, an end cover which is threadedly connected to the opening of the connecting groove to limit the annular portion from detaching from the connecting sleeve, and a limiting seat arranged below the inlet and outlet. During the installation process of the square connecting sleeve, the lower end of the limiting shaft contacts the limiting seat and drives the compression spring to be compressed, so that the limiting shaft is embedded in the limiting groove for limiting.

[0021] By adopting the above technical solution, during the installation of the square connecting sleeve, the lower end of the limit shaft contacts the limit seat and drives the compression spring to be compressed, so that the limit shaft is embedded in the limit groove for limiting, so as to achieve automatic limiting; at the same time, after the square connecting sleeve is disassembled, the compression spring is reset to make the limit shaft disengage from the limit groove, so as to facilitate the removal of the square frame of the blocking sealing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is a schematic diagram of the structure of the present invention;

[0024] Figure 2 yes Figure 1 A local enlarged view at A in the figure;

[0025] Figure 3 It is a schematic diagram of the structure of the inlet and outlet, the barrier sealing device, and the inlet and outlet in the present invention;

[0026] Figure 4 yes Figure 3 Exploded view of the structure on the foundation;

[0027] Figure 5 yes Figure 3 Exploded view of another structure on the foundation;

[0028] Figure 6 It is a schematic structural diagram of the barrier sealing device in the present invention;

[0029] Figure 7 It is a partial structural cross-sectional view of the limiting mechanism in the present invention.

[0030] In the figure: 11, preheating section; 12, connecting channel; 121, square connecting sleeve; 1211, sliding column; 1212, embedded groove; 1213, connecting groove; 122, square sealing ring; 123, first square tube; 1231, guide block; 124, second square tube; 1241, guide groove; 125, locking assembly; 1251, locking knob bolt; 1252, pressure ring; 126, plug-in track; 1261, vertical track groove; 1262, inclined track groove; 13, first curing section; 14, second curing section; 15, inlet and outlet; 2, chain conveying system; 31, first hot air furnace; 32, first circulating fan; 33, first air inlet duct; 34, The first exhaust fan; 35. The first air outlet duct; 36. The second hot air furnace; 37. The second circulation fan; 38. The second air inlet duct; 39. The second exhaust fan; 310. The second air outlet duct; 311. The high-temperature exhaust chamber; 312. The first heat recovery duct; 313. The second heat recovery duct; 314. The third circulation fan; 315. The third heat recovery duct; 316. The third air inlet duct; 317. The third exhaust fan; 318. The third air outlet duct; 4. The blocking sealing device; 41. The square frame; 411. The limiting groove; 42. The square rubber sheet; 421. The opening groove; 51. The limiting shaft; 511. The annular portion; 52. The compression spring; 53. The end cover; 54. The limiting seat. DETAILED DESCRIPTION

[0031] The technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Embodiment: A method for high elastic glass wool, such as Figure 1 As shown, it includes a curing furnace main body, a chain conveying system 2 arranged in the curing furnace main body, and a hot air circulation system. The curing furnace main body includes a preheating section 11, a connecting channel 12, a first curing section 13 with lower air inlet and upper air outlet, a connecting channel 12, and a second curing section 14 with upper air inlet and lower air outlet, which are connected for the first time. The chain conveying system 2 is provided with three and is respectively located in the preheating section 11, the first curing section 13, and the second curing section 14.

[0033] like Figure 1As shown, the hot air circulation system includes a first hot air furnace 31 disposed at the top of the first curing section 13 and having a liquefied gas burner, a first circulation fan 32 disposed on the first hot air furnace 31, a first air inlet duct 33 disposed below the first circulation fan 32 and one side of the first curing section 13, a first exhaust fan 34 disposed at the top of the first curing section 13, a first air outlet duct 35 disposed above the first exhaust fan 34 and the other side of the first curing section 13, a second hot air furnace 36 disposed at the top of the second curing section 14 and having a liquefied gas burner, a second circulation fan 37 disposed on the second hot air furnace 36, and a second air outlet duct 35 disposed at the second circulation fan 36. A second air inlet duct 38 is arranged above one side of the first curing section 14 and the second curing section 14, a second exhaust fan 39 is arranged at the top of the second curing section 14, a second air outlet duct 310 is arranged below the second exhaust fan 39 and the other side of the second curing section 14, a high-temperature exhaust chamber 311 communicated with the outlet ends of the first exhaust fan 34 and the second exhaust fan 39, a first heat recovery duct 312 connected to the high-temperature exhaust chamber 311 and the air inlet end of the first circulation fan 32, a second heat recovery duct 313 connected to the high-temperature exhaust chamber 311 and the air inlet end of the second circulation fan 37, and a preheating circulation mechanism for realizing heat circulation in the curing section and the high-temperature exhaust chamber 311.

[0034] like Figure 1 As shown, the high-temperature tail gas chamber 311 is arranged at the top of the preheating section 11, the first curing section 13 and the second curing section 14. The preheating circulation mechanism includes a third circulation fan 314 arranged at the top of the curing section, a third heat recovery pipe 315 connected between the high-temperature tail gas chamber 311 and the third circulation fan 314, a third air inlet pipe 316 arranged between the air outlet end of the third circulation fan 314 and the cooling section, a third exhaust fan 317 arranged at the top of the preheating section 11, and a third air outlet pipe 318 connected between the preheating section 11 and the third exhaust fan 317. The high-temperature tail gas chamber 311 is communicated with the air outlet end of the third exhaust fan 317. At the same time, the high-temperature exhaust chamber 311 is in a "U" shape, and the bending part of the high-temperature exhaust chamber 311 is located at the top of the preheating section 11. The second exhaust fan 39, the first exhaust fan 34 and the third exhaust fan 317 are connected with the side of the high-temperature exhaust chamber 311 extending in a straight direction in sequence, and the third heat recovery pipe 315, the first heat recovery pipe 312 and the second heat recovery pipe 313 are connected with the other side of the high-temperature exhaust chamber 311 extending in a straight direction in sequence.

[0035] like Figures 2 to 5As shown, a blocking and sealing device 4 is provided in the middle of the connecting channel 12 for glass wool to pass through during movement and to disconnect the air flow between the preheating section 11 and the first curing section 13, and between the first curing section 13 and the second curing section 14. The preheating section 11, the first curing section 13, and the second curing section 14 are provided with inlets and outlets 15 for glass wool to enter and exit at the corresponding connecting channels 12. The connecting channel 12 includes two square connecting sleeves 121 at both ends, a square sealing ring 122 provided on the end surface of the square connecting sleeve 121, a first square tube 123 provided on one of the square connecting sleeves 121, a second square tube 124 provided on the other square connecting sleeve 121 and telescopically provided on the periphery of the first square tube 123, a locking assembly 125 provided between the first square tube 123 and the second square tube 124, and a plurality of plug-in rails 126. Two plug-in rails 126 distributed along the vertical direction are provided on both sides of each of the inlets and outlets 15. The plug-in rail 126 has a vertical rail groove 1261 extending in the vertical direction, and an inclined rail groove 1262 connected to the lower end of the vertical rail groove 1261 and extending in the direction close to the inlet and outlet 15. Two sliding columns 1211 are respectively arranged on both sides of the square connecting sleeve 121 for being plugged into the plug-in rail 126 from bottom to bottom. When the sliding column 1211 slides to the middle of the inclined rail groove 1262, the square sealing ring 122 of the square connecting sleeve 121 is pressed against the peripheral side of the inlet and outlet 15. The barrier sealing devices 4 are respectively detachably arranged in the two square connecting sleeves 121, and different types of barrier sealing devices 4 can be replaced to adapt to different types of glass wool.

[0036] like Figure 3 and 4 As shown, guide grooves 1241 extending along the length direction are provided on both sides of the second square tube 124, guide blocks 1231 slidably connected to the guide grooves 1241 are provided on both sides of the first square tube 123, and the locking assembly 125 includes two locking knob bolts 1251 threadedly connected to the guide blocks 1231, and a pressing ring 1252 arranged on the locking knob bolts 1251 and pressed on the peripheral side of the second square tube 124.

[0037] like Figures 5 to 7As shown, the square connection sleeve 121 is provided with an embedding groove 1212 near the opening of the inlet and outlet 15, and the blocking sealing device 4 includes a square frame 41 embedded in the embedding groove 1212, a square rubber sheet 42 provided in the square frame 41 and in contact with the upper and lower surfaces and both sides of the glass wool, and the square rubber sheet 42 is provided with an opening groove 421 at the turning point of the inner circle, and the square rubber sheet 42 in the square frame 41 is provided with two layers, and the inner circle of the square frame 41 covers the range where the inlet and outlet 15 are located. At the same time, one end face of the square frame 41 and the end face of the square connection sleeve 121 are located on the same plane, and two connecting grooves 1213 that are connected to the embedding groove 1212 and have a "convex" cross-section are provided at the bottom of the square connection sleeve 121, and a limiting groove 411 is provided at the corresponding connection groove 1213 of the square frame 41, and a limiting mechanism is provided between the square connection sleeve 121 and the bottom of the inlet and outlet 15, which is embedded in the limiting groove 411 for limiting after the square connection sleeve 121 is installed. The limiting mechanism includes a limiting shaft 51 which is telescopically arranged in the connecting groove 1213 and has an annular portion 511 on the circumference of the lower end, a compression spring 52 which is sleeved on the limiting shaft 51 and has both ends pressed against the stepped surface of the connecting groove 1213 and the annular portion 511, an end cover 53 which is threadedly connected to the opening of the connecting groove 1213 to limit the annular portion 511 from detaching from the connecting sleeve, and a limiting seat 54 which is arranged below the inlet and outlet 15. During the installation of the square connecting sleeve 121, the lower end of the limiting shaft 51 contacts the limiting seat 54 and drives the compression spring 52 to be compressed, so that the limiting shaft 51 is embedded in the limiting groove 411 for limiting.

[0038] Implementation effect: In the glass wool fixing process, the glass wool is first preheated by the preheating section 11, and then heated and cured by the lower air inlet and upper air outlet of the first curing section 13, and heated and cured by the upper air inlet and lower air outlet of the second curing section 14, so as to ensure the curing effect of the glass wool; and the high-temperature exhaust gas discharged from the first curing section 13 and the second curing section 14 enters the high-temperature exhaust gas chamber 311, and can be transported to the first curing section 13 by the first circulation fan 32 through the first heat recovery pipe 312, and transported to the second curing section 14 by the second circulation fan 37 through the second heat recovery pipe 313 for hot air circulation. In addition, the high-temperature exhaust gas The tail gas in the chamber 311 can be transported to the preheating section 11 through the preheating circulation mechanism to preheat the glass wool, and energy saving can be achieved through reasonable hot air circulation; at the same time, a blocking sealing device 4 is provided in the middle of the connecting channel 12 for the glass wool to pass through during movement and to disconnect the air flow between the preheating section 11 and the first curing section 13, and between the first curing section 13 and the second curing section 14. At this time, the hot air in the preheating section 11, the first curing section 13 and the second curing section 14 can be individually controlled by the controller to control the power when the hot air is generated, the power when the hot air is sucked, etc., to avoid the situation of air leakage at the connection. During the operation of the preheating circulation mechanism, the hot air circulates along the high-temperature tail gas chamber 311, the third heat recovery pipe 315, the third circulation fan 314, the third air inlet pipe 316, the preheating section 11, the third air outlet pipe 318, the third exhaust fan 317, and the high-temperature tail gas chamber 311 to achieve preheating of the glass wool in the preheating section 11. The second exhaust fan 39, the first exhaust fan 34 and the third exhaust fan 317 are connected in sequence to one side of the high-temperature exhaust chamber 311 extending in a straight line. At this time, when the high-temperature exhaust gas in the preheating section 11, the first curing section 13 and the second curing section 14 enters the high-temperature exhaust chamber 311 and is transported to the other side along the high-temperature exhaust chamber 311, the third heat recovery pipe 315 is first connected to the high-temperature exhaust chamber 311, thereby ensuring the hot air temperature entering the preheating section 11 to achieve a good preheating effect.

[0039] Since the width and thickness of glass wool of different types are different, a detachable connecting channel 12 is provided to realize replacement of the internal barrier sealing device 4, so as to facilitate the use of glass wool of different types; during the installation of the connecting channel 12, the sliding columns 1211 on both sides of the square connecting sleeve 121 move downward along the plug-in track 126. Since the plug-in track 126 includes a vertical track groove 1261 extending in the vertical direction and an inclined track groove 1262 connected to the lower end of the vertical track groove 1261 and extending toward the direction close to the inlet and outlet 15, the square sealing ring 122 on the square connecting sleeve 121 can be pressed against the peripheral side of the inlet and outlet 15 for sealing under the component force of gravity. At the same time, the problem of the square connecting sleeves 121 at both ends moving away from each other during installation can be solved by the telescopic setting of the first square tube 123 and the second square tube 124, and after being fixed with the locking assembly 125, the connecting pipe can be fixed so that the connecting pipe will not be loose, and finally it has the function of facilitating the disassembly of the connecting pipe and automatically sealing after installation. At the same time, the blocking sealing device 4 needs to be replaced with glass wool of different types. At this time, the blocking sealing device 4 is preferably equipped with the function of convenient disassembly and assembly. In the present scheme, it is installed by directly embedding it in the embedding groove 1212, which is very convenient to install. However, because the square connecting tube and the peripheral sides of the inlet and outlet 15 are sealed by the deformation of the square sealing ring 122, the square frame 41 directly embedded in the embedding groove 1212 is not easy to directly contact the peripheral sides of the inlet and outlet 15. At this time, the square frame 41 is prone to slight shaking after contacting the moving glass wool, so a limiting mechanism is provided to solve the problem of slight shaking of the square frame 41.

Claims

1. A curing furnace for high-elastic glass wool, comprising a curing furnace body, a chain conveying system (2) arranged in the curing furnace body, and a hot air circulation system, characterized in that: The curing furnace body comprises a preheating section (11) connected end to end, a connecting channel (12), a first curing section (13) with air intake from the bottom and air outlet from the top, a connecting channel (12), and a second curing section (14) with air intake from the top and air outlet from the bottom. The chain conveying system (2) is provided with three and is respectively located in the preheating section (11), the first curing section (13), and the second curing section (14); The hot air circulation system comprises a first hot air furnace (31) arranged at the top of the first curing section (13) and having a liquefied gas burner, a first circulation fan (32) arranged on the first hot air furnace (31), a first air inlet duct (33) arranged below the first circulation fan (32) and one side of the first curing section (13), a first exhaust fan (34) arranged at the top of the first curing section (13), a first air outlet duct (35) arranged above the first exhaust fan (34) and the other side of the first curing section (13), a second hot air furnace (36) arranged at the top of the second curing section (14) and having a liquefied gas burner, a second circulation fan (37) arranged on the second hot air furnace (36), and a second air inlet duct arranged above the second circulation fan (37) and one side of the second curing section (14). a first circulation fan (32); a second heat recovery pipe (313) connected to the high-temperature tail gas chamber (311) and the air inlet end of the first circulation fan (32); a second heat recovery pipe (313) connected to the high-temperature tail gas chamber (311) and the air inlet end of the second circulation fan (37); and a preheating circulation mechanism for realizing heat circulation in the curing section and the high-temperature tail gas chamber (311); the high-temperature tail gas chamber (311) being arranged at the top of the preheating section (11), the first curing section (13) and the second curing section (14); A blocking sealing device (4) is provided in the middle of the connecting passage (12) for the glass wool to pass through during movement and for cutting off the air flow between the preheating section (11) and the first curing section (13), and between the first curing section (13) and the second curing section (14); The preheating section (11), the first curing section (13), and the second curing section (14) are all provided with an inlet and outlet (15) for glass wool to enter and exit at the corresponding connection channels (12). The connection channel (12) comprises two square connection sleeves (121) located at both ends, a square sealing ring (122) arranged on the end surface of the square connection sleeve (121), a first square tube (123) arranged on one of the square connection sleeves (121), a second square tube (124) arranged on the other square connection sleeve (121) and telescopically arranged around the first square tube (123), a locking assembly (125) arranged between the first square tube (123) and the second square tube (124), and a plurality of plug-in rails (126). Two plug-in rails (126) are respectively arranged on both sides of each of the inlet and outlet (15). The plug-in rail (126) has a vertical rail groove (1261) extending in the vertical direction, and an inclined rail groove (1262) connected to the lower end of the vertical rail groove (1261) and extending in a direction close to the inlet and outlet (15). Two sliding columns (1211) are respectively arranged on both sides of the square connecting sleeve (121) for plugging into the plug-in rail (126) from top to bottom. When the sliding columns (1211) slide to the middle of the inclined rail groove (1262), the square sealing ring (122) of the square connecting sleeve (121) is pressed against the peripheral side of the inlet and outlet (15). The blocking sealing devices (4) are respectively detachably arranged in the two square connecting sleeves (121), and different types of glass wool can be adapted by replacing different types of blocking sealing devices (4).

2. A curing furnace for high elastic glass wool according to claim 1, characterized in that: The preheating circulation mechanism comprises a third circulation fan (314) arranged at the top of the preheating section (11), a third heat recovery duct (315) connected between the high-temperature exhaust chamber (311) and the third circulation fan (314), a third air inlet duct (316) arranged between the air outlet end of the third circulation fan (314) and the preheating section (11), a third exhaust fan (317) arranged at the top of the preheating section (11), and a third air outlet duct (318) connected between the preheating section (11) and the third exhaust fan (317); the high-temperature exhaust chamber (311) is in communication with the air outlet end of the third exhaust fan (317).

3. A curing furnace for high elastic glass wool according to claim 2, characterized in that: The high-temperature tail gas chamber (311) is in a "U" shape, and the bending part of the high-temperature tail gas chamber (311) is located at the top of the preheating section (11). The second exhaust fan (39), the first exhaust fan (34) and the third exhaust fan (317) are in sequential communication with one side of the high-temperature tail gas chamber (311) extending in a straight direction, and the third heat recovery pipe (315), the first heat recovery pipe (312) and the second heat recovery pipe (313) are in sequential communication with the other side of the high-temperature tail gas chamber (311) extending in a straight direction.

4. A curing furnace for high elastic glass wool according to claim 1, characterized in that: Guide grooves (1241) extending along the length direction are arranged on both sides of the second square tube (124), guide blocks (1231) slidably connected to the guide grooves (1241) are arranged on both sides of the first square tube (123), and the locking assembly (125) comprises two locking knob bolts (1251) threadedly connected to the guide blocks (1231), and a pressure ring (1252) arranged on the locking knob bolts (1251) and pressed against the circumference of the second square tube (124).

5. A curing furnace for high elastic glass wool according to claim 4, characterized in that: The square connecting sleeve (121) is provided with an embedding groove (1212) near the opening of the inlet and outlet (15), and the blocking sealing device (4) comprises a square frame (41) embedded in the embedding groove (1212), and a square rubber sheet (42) arranged in the square frame (41) and in contact with the upper and lower surfaces and both side surfaces of the glass wool, wherein the square rubber sheet (42) is provided with an opening groove (421) at the turning point of the inner circle, and the square rubber sheet (42) in the square frame (41) is provided with two layers, and the inner circle of the square frame (41) covers the range where the inlet and outlet (15) are located.

6. A curing furnace for high elastic glass wool according to claim 5, characterized in that: One end face of the square frame (41) and the end face of the square connecting sleeve (121) are located on the same plane; the bottom of the square connecting sleeve (121) is provided with two connecting grooves (1213) which are connected to the embedding grooves (1212) and have a "convex"-shaped cross section; the square frame (41) is provided with a limiting groove (411) at a position corresponding to the connecting groove (1213); and a limiting mechanism is provided between the square connecting sleeve (121) and the bottom of the inlet and outlet (15) for embedding in the limiting groove (411) for limiting after the square connecting sleeve (121) is installed.

7. A curing furnace for high elastic glass wool according to claim 6, characterized in that: The limiting mechanism comprises a limiting shaft (51) which is telescopically arranged in the connecting groove (1213) and has an annular portion (511) arranged on the circumference of the lower end, a compression spring (52) which is sleeved on the limiting shaft (51) and has two ends pressed against the stepped surface of the connecting groove (1213) and the annular portion (511), an end cover (53) which is threadedly connected to the opening of the connecting groove (1213) to limit the annular portion (511) from being separated from the connecting sleeve, and a limiting seat (54) arranged below the inlet and outlet (15). During the installation of the square connecting sleeve (121), the lower end of the limiting shaft (51) contacts the limiting seat (54) and drives the compression spring (52) to be compressed, so that the limiting shaft (51) is embedded in the limiting groove (411) for limiting.

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