Double-layer calcining furnace for nano modified fiber production

Abstract

The invention relates to the technical field of cleaning, in particular to a double-layer calcining furnace for nano modified fiber production. The double-layer calcining furnace comprises a furnace body, a feeding assembly, an overturning assembly, a moving assembly, a heating rod and a spraying rod. The furnace body comprises a heating cavity, a preheating cavity and a cooling cavity, the heating cavity is formed in the axis position of the furnace body, the preheating cavity is formed in the outer side of the heating cavity, the cooling cavity is formed in the lower end of the preheating cavity, the feeding assembly is installed at the upper end of the furnace body, a plurality of overturning grooves are formed in the outer wall of the heating cavity and penetrate through the outer wall of the heating cavity, and the overturning assemblies are rotationally installed in the overturning grooves. A sliding groove is formed in the surface of the heating cavity and extends to the cooling cavity, the moving assembly is slidably installed in the sliding groove, the heating rod is fixedly installed at the axis position of the heating cavity, the spraying rods are fixedly installed on the inner wall of the heating cavity, the moving assembly drives a workpiece to the preheating cavity to be preheated, and the overturning assembly overturns the workpiece in the preheating cavity to the heating cavity. Meanwhile, the workpieces in the heating cavity are taken out of the preheating cavity and then taken into the cooling cavity to be cooled by the moving assembly.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cleaning, in particular to a double-layer calcining furnace for nanometer modified fiber production. BACKGROUND

[0002] The vacuum cleaning furnace is an environmentally friendly cleaning equipment combining vacuum technology and high-temperature treatment, which is widely used in chemical fiber, plastic, electronic and other industries, and is mainly used for cleaning key components such as spinneret, filter core and die head used in nanometer modified fiber production. Its working principle is based on the physical and chemical properties of high molecular polymers at different temperatures, and high-efficiency cleaning is achieved through melting, cracking and oxidation.

[0003] The existing vacuum cleaning furnace first places the key components such as spinneret, filter core and die head in the cleaning basket, and then places it in the furnace cavity. First, the air in it is extracted, and then the workpiece is heated to 300 degrees Celsius. The high molecular compound on the surface of the workpiece is heated into the form of oil and fat, and the molten polymer is affected by gravity and flows into the waste liquid tank. Then the temperature in the furnace cavity is heated to 500 degrees Celsius, and air is continuously filled into it, so that the remaining high molecular compound and oxygen in the air react to generate carbon dioxide and water, which is discharged. After the work is finished, the heating system will be turned off, and the ambient temperature will naturally cool down to 80 degrees Celsius. The workpiece is taken out. Through this process, the vacuum cleaning furnace can efficiently remove pollutants while protecting the performance of the workpiece to the greatest extent, and will not produce harmful substances to damage the environment.

[0004] However, the working process of the vacuum cleaning furnace is not continuous. After the workpiece is processed and cleaned, it needs to be naturally cooled before it can be taken out, and then the next workpiece can be cleaned. The entire working process takes more than 10 hours, and the working efficiency is low. When a large number of workpieces need to be cleaned, a large amount of time is consumed for cleaning workpieces in this way. In view of the above situation, in order to overcome the above technical problems, the present application designs a double-layer calcining furnace for nanometer modified fiber production, which solves the technical problem of low working efficiency of the above-mentioned vacuum cleaning furnace. SUMMARY

[0005] The purpose of the present application is to provide a double-layer calcining furnace for nanometer modified fiber production, which is used to solve the problem of non-continuous working process and low working efficiency of the vacuum cleaning furnace. By setting a heating cavity and a preheating cavity in the furnace body, the workpiece is heated while the subsequent workpiece is preheated, and after heating is completed, the workpiece is sent to the cooling cavity for cooling, which does not affect the heating of the subsequent workpiece. The working process is improved and the working efficiency is improved.

[0006] In order to achieve the above technical purpose, the present application provides the following technical scheme:

[0007] The utility model provides a kind of double-layer calcining furnace for nanometer modified fiber production, including furnace body, feed assembly, turnover assembly, moving assembly, heating rod, spray rod;The furnace body includes heating cavity, preheating cavity, cooling cavity, the heating cavity is opened in furnace body axis position, the preheating cavity is opened in heating cavity outside, the cooling cavity is opened in preheating cavity lower end, the feed assembly is installed on furnace body upper end, the heating cavity outer wall is equipped with multiple turnover grooves, the turnover groove penetrates heating cavity outer wall, the turnover assembly is rotatably installed in turnover groove, the heating cavity surface is equipped with sliding slot, the sliding slot extends to cooling cavity, the moving assembly is slidably installed in sliding slot, the heating rod is fixedly installed in heating cavity axis position, multiple the spray rod is fixedly installed on heating cavity inner wall, moving assembly drives workpiece to preheating in preheating cavity, and turnover assembly overturns and turns workpiece in preheating cavity to heating cavity, simultaneously, workpiece in heating cavity is taken out of preheating cavity, and then is taken into cooling cavity by moving assembly and is cooled.

[0008] Preferably, the feed assembly includes a feed port, a feed box, a driving wheel, a driven wheel, a belt, and a driving rod. The feed port is fixedly installed on one side of the upper end of the furnace body. The feed box is rotatably installed on the upper end of the furnace body. The driving wheel is rotatably installed at the lower end of the feed port. Multiple driven wheels are rotatably installed on both sides of the driving wheel. The belt cooperates with the driven wheels. The upper end of the feed box is provided with a matching hole. The driving rod is fixedly installed at the lower end of the driving wheel and cooperates with the matching hole.

[0009] In the above scheme, after the uncleaned workpiece is fixed on the fixing frame and placed in the feed port, the driving wheel rotates to drive the driven wheel to rotate. The driven wheel drives the fixed plate and the workpiece to move forward through the belt, so that the workpiece falls into the feed box. At the same time, the driving rod cooperates with the matching hole. The driving rod drives the feed box to rotate by a fixed angle every rotation. The feed box without workpieces is rotated to below the feed port, ensuring that the fixing frame falls into the feed box.

[0010] Preferably, the turnover assembly includes a turnover plate, a shaft, an air chamber, a push plate, an insulating plate, a spring, and a clamping block. The shaft is rotatably installed in the turnover groove. The turnover plate is fixedly installed on the shaft. The air chamber is opened at both ends of the shaft. The insulating plate separates the air chamber into two layers. Two push plates are movably installed in the air chamber. The inner side of the turnover groove is provided with a fixed hole. The clamping block is movably installed in the fixed hole. One end of the spring is connected to the fixed hole, and the other end is connected to the bottom end of the clamping block.

[0011] In the above scheme, when one end of the flipping plate is flipped into the heating chamber, the gas in the air chamber near the heating chamber begins to expand due to heat, slowly pushing the push plate upward. The density of the gas in the air chamber is controlled so that it is sufficient to push the push plate to push the locking block out of the air chamber when the workpiece is cleaned. At this time, the rotating shaft rotates. When the other end of the air chamber is connected to the fixing hole, the locking block is locked into the air chamber, causing the flipping plate to stop flipping. With this scheme, when the workpiece is cleaned, the flipping plate automatically flips and flips the cleaned workpiece into the preheating chamber without the need for manual control.

[0012] Preferably, heat insulation components are installed at both ends of the preheating cavity. The heat insulation components include an electromagnet, a second spring, an isolation plate, and a magnetic block. Two electromagnets are respectively installed at the axial positions at both ends of the preheating cavity. Multiple isolation plates are movably installed in a circumferential array on the outer periphery of the electromagnets. One end of the second spring is connected to the outer side of the electromagnet shell, and the other end is connected to one end of the isolation plate. The magnetic block is installed on the end of the isolation plate near the electromagnet.

[0013] In the above scheme, after the internal workpiece is cleaned, the electromagnet is energized. The magnetic block is attracted by the electromagnet and moves the isolation plate inward, allowing the workpiece to fall and replace the workpiece in the preheating cavity. After the replacement is completed, the electromagnet is de-energized, and the isolation plate moves outward under the influence of spring two, isolating the preheating cavity and preventing heat loss from the preheating cavity.

[0014] Preferably, the moving component includes a slider, a fixed frame, three springs, and a fixed plate. The slider is fixedly installed at the bottom of the fixed frame, one end of each of the three springs is connected to both sides of the inner surface of the fixed frame, and two fixed plates are connected to the other end of each of the three springs.

[0015] In the above scheme, the workpiece is placed between two fixed plates, and the spring presses the fixed plates inward to fix the workpiece. The slider is installed in the slide groove and cooperates with the slide groove. After the workpiece is fixed, the fixed frame clamps the workpiece and moves with the slide groove, fixing the trajectory of the workpiece movement, which does not require manual control.

[0016] Preferably, the outer width of the chute within the preheating chamber is less than the width of the slider, and the outer width of the chute extending into the cooling chamber is equal to the width of the slider.

[0017] In the above scheme, the width of the outer part of the preheating cavity is less than the width of the slider, which can restrict the slider trajectory in the horizontal direction and prevent the workpiece from falling off. The width of the outer part of the cooling cavity is equal to the width of the slider, which facilitates the workpiece falling into the cooling cavity. After cooling is completed, the fixing frame and the workpiece can be taken out.

[0018] Preferably, a buckle is installed on the outside of the fixing plate, and a spring is fixedly installed on the inside of the buckle. A positioning frame is installed on the outside of the heating cavity, and a groove with a gradually decreasing radius is opened in the positioning frame to cooperate with the buckle.

[0019] In the above solution, when the buckle contacts the positioning frame, the positioning frame will lock the buckle, preventing the fixed frame from moving forward with the moving component. When the flipping plate flips and flips the fixed frame into the heating chamber, the buckle will be squeezed into the fixed frame by the groove. When the flipping plate continues to flip and flips the fixed frame back into the preheating chamber, because the buckle will be locked into the fixed frame, the fixed frame will continue to move with the moving component and enter the cooling chamber. With this solution, the workpiece can fall exactly on the surface of the flipping plate when it falls, and can automatically fall into the cooling chamber after heating is completed.

[0020] Preferably, a limiting block is installed inside the heating cavity, and the limiting block is installed at both ends of the flipping groove.

[0021] In the above solution, this solution prevents the fixed plate from sliding back into the heating chamber after it flips over, which would prevent it from flipping back into the preheating chamber after heating is completed.

[0022] Preferably, the heating chamber and the preheating chamber are connected by a tilting groove, and an air pump is fixedly installed on the outside of the preheating chamber.

[0023] In the above scheme, when gas needs to be continuously introduced into the heating chamber, the air pump continuously draws gas out. At this time, the gas in the heating chamber is drawn out to the preheating chamber for further preheating of the workpiece in the preheating chamber.

[0024] Preferably, the height of the groove is equal to the height of the slider.

[0025] In the above scheme, when the flip plate flips, the slider is stuck in the groove, which drives the fixed plate to rotate, while preventing the fixed plate from shaking horizontally.

[0026] The beneficial effects of this invention are as follows:

[0027] 1. A double-layer calcining furnace for the production of nano-modified fibers. This invention features a double-layer calcining furnace with a preheating chamber outside the heating chamber. This allows for the efficient use of heat dissipated from the heating chamber to preheat subsequent uncleaned workpieces. Simultaneously, to prevent heat loss during natural cooling of the workpieces, a cooling chamber is located at the rear end of the preheating chamber. After cleaning, the workpieces are moved to the cooling chamber via a flipping and moving assembly, allowing the heating chamber to continue heating and cleaning the preheated workpieces. This design not only accelerates the overall cleaning speed and improves cleaning efficiency but also efficiently utilizes the residual heat emitted from the heating chamber, saving resources.

[0028] 2. A double-layer calcining furnace for the production of nano-modified fibers. The present invention sets a positioning frame on the outside of the heating chamber and sets a buckle on the fixed frame so that the fixed plate automatically stops when it reaches above the flipping plate, and the buckle is squeezed into the fixed frame during flipping. After the workpiece is heated, when it is flipped again, because the buckle is squeezed into the fixed frame, it will not be affected by the positioning frame after flipping. The fixed frame will send the workpiece from the preheating chamber to the cooling chamber for cooling. The whole process does not require human control, making the whole process more automated.

[0029] 3. A double-layer calcining furnace for the production of nano-modified fibers. This invention uses a feeding assembly and an isolation assembly to clamp the workpiece onto a fixed frame. The feeding box is rotated by a drive rod and a mating hole, while the fixed frame is moved by a driven wheel and a belt, ensuring that the fixed frame falls into the feeding box when it falls. When the isolation assembly is closed, it ensures that the fixed frame does not fall directly into the preheating chamber. After the feeding box is fully filled with the fixed frame, opening the isolation assembly ensures that the fixed frame enters the preheating chamber simultaneously. This method simplifies the workpiece loading process, reduces the time the preheating chamber is connected to the outside, retains the heat in the preheating chamber, and improves the preheating effect. Attached Figure Description

[0030] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0031] The above and other aspects of the invention will now be described by way of example only, with reference to the accompanying drawings, in which:

[0032] Figure 1 This is a front view of the present invention;

[0033] Figure 2 This is a schematic diagram of the axial cross-section of the present invention;

[0034] Figure 3 This is a front view of the heating cavity of the present invention;

[0035] Figure 4 This is a cross-sectional axonometric view of the feeding assembly of the present invention;

[0036] Figure 5 This is a cross-sectional view of the heat insulation component of the present invention;

[0037] Figure 6 This is an isometric view of the moving component of the present invention;

[0038] Figure 7 This is an isometric view of the flipping component of the present invention;

[0039] Figure 8 This is a partially enlarged cross-sectional view of the heating chamber.

[0040] In the diagram: 1. Furnace body; 11. Heating chamber; 111. Tilting groove; 112. Slide groove; 113. Fixing hole; 114. Limiting block; 12. Preheating chamber; 13. Cooling chamber; 14. Air pump; 2. Feeding assembly; 21. Feed inlet; 22. Feed box; 221. Mating hole; 23. Drive wheel; 24. Driven wheel; 25. Belt; 26. Drive rod; 3. Tilting assembly; 31. Tilting plate; 32. Rotating shaft; 33. Air chamber; 34. Push plate; 35. Heat insulation plate; 36. Spring 1; 37. Locking block; 4. Moving component; 41. Slider; 42. Fixing frame; 43. Spring 3; 44. Fixing plate; 441. Buckle; 442. Spring 4; 443. Positioning frame; 444. Groove; 5. Heating rod; 6. Spray rod; 7. Heat insulation component; 71. Electromagnet; 72. Spring 2; 73. Isolation plate; 74. Magnetic block. Detailed Implementation

[0041] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0042] As one embodiment of the present invention, refer to Figures 1 to 3 A double-layer calcining furnace for producing nano-modified fibers includes a furnace body 1, a feeding assembly 2, a tilting assembly 3, a moving assembly 4, a heating rod 5, and a spraying rod 6. The furnace body 1 includes a heating chamber 11, a preheating chamber 12, and a cooling chamber 13. The heating chamber 11 is located along the axis of the furnace body 1, the preheating chamber 12 is located outside the heating chamber 11, and the cooling chamber 13 is located below the preheating chamber 12. The feeding assembly 2 is installed on the upper part of the furnace body 1. Multiple tilting grooves 111 are formed on the outer wall of the heating chamber 11, penetrating the outer wall of the heating chamber 11. Component 3 is rotatably installed in the flipping groove 111. The surface of the heating chamber 11 is provided with a sliding groove 112, which extends to the cooling chamber 13. The moving component 4 is slidably installed in the sliding groove 112. The heating rod 5 is fixedly installed at the axial position of the heating chamber 11. Multiple spray rods 6 are fixedly installed on the inner wall of the heating chamber 11. The moving component 4 drives the workpiece to the preheating chamber 12 for preheating. The flipping component 3 flips the workpiece in the preheating chamber 12 to the heating chamber 11, and at the same time, the workpiece in the heating chamber 11 is taken out of the preheating chamber 12 and then taken into the cooling chamber 13 for cooling by the moving component 4.

[0043] As one embodiment of the present invention, refer to Figure 4The feeding assembly 2 includes a feeding port 21, a feeding box 22, a drive wheel 23, a driven wheel 24, a belt 25, and a drive rod 26. The feeding port 21 is fixedly installed on one side of the upper end of the furnace body 1. The feeding box 22 is rotatably installed on the upper end of the furnace body 1. The drive wheel 23 is rotatably installed on the lower end of the feeding port 21. Multiple driven wheels 24 are rotatably installed on both sides of the drive wheel 23. The belt 25 cooperates with the driven wheels 24. A mating hole 221 is opened on the outer periphery of the upper end of the feeding box 22. The drive rod 26 is fixedly installed on the lower end of the drive wheel 23 and cooperates with the mating hole 221. After the uncleaned workpiece is fixed on the fixing frame 42, it is placed into the feed inlet 21. The drive wheel 23 rotates, driving the driven wheel 24 to rotate. The driven wheel 24 drives the fixing plate 44 and the workpiece to move forward through the belt 25, so that the workpiece falls into the feed box 22. At the same time, the drive rod 26 engages with the mating hole 221. Every time the drive rod 26 rotates, it drives the feed box 22 to rotate by a fixed angle, rotating the feed box 22 without workpieces to below the feed inlet 21, ensuring that the fixing frame 42 falls into the feed box 22.

[0044] As one embodiment of the present invention, refer to Figure 2 , Figure 3 , Figure 7 and Figure 8 The flipping assembly 3 includes a flipping plate 31, a rotating shaft 32, an air chamber 33, a push plate 34, a heat insulation plate 35, a spring 36, and a locking block 37. The rotating shaft 32 is rotatably installed in the flipping groove 111, the flipping plate 31 is fixedly installed on the rotating shaft 32, the air chamber 33 is opened at both ends of the rotating shaft 32, the heat insulation plate 35 separates the air chamber 33 into upper and lower layers, the two push plates 34 are respectively movably installed in the air chamber 33, the inner side of the flipping groove 111 is provided with a fixing hole 113, the locking block 37 is movably installed in the fixing hole 113, and one end of the spring 36 is connected to the fixing hole 113 and the other end is connected to the bottom end of the locking block 37. When one end of the flipping plate 31 is flipped into the heating chamber 11, the gas in the air chamber 33 near the heating chamber 11 begins to expand due to heat, slowly pushing the push plate 34 upward. The density of the gas in the air chamber 33 is controlled so that it is sufficient to push the push plate 34 to push the locking block 37 out of the air chamber 33 when the workpiece is cleaned. At this time, the rotating shaft 32 rotates. When the other end of the air chamber 33 is connected to the fixing hole 113, the locking block 37 is locked into the air chamber 33, causing the flipping plate 31 to stop flipping. With this solution, when the workpiece is cleaned, the flipping plate 31 automatically flips and flips the cleaned workpiece into the preheating chamber 12 without manual control.

[0045] As one embodiment of the present invention, refer to Figure 2 and Figure 5The preheating cavity 12 is equipped with heat insulation components 7 at both ends. Each heat insulation component 7 includes an electromagnet 71, a second spring 72, an isolation plate 73, and a magnetic block 74. Two electromagnets 71 are respectively installed at the axial positions of both ends of the preheating cavity 12. Multiple isolation plates 73 are movably installed in a circumferential array on the outer periphery of the electromagnets 71. One end of the second spring 72 is connected to the outer side of the electromagnet 71 shell, and the other end is connected to one end of the isolation plate 73. The magnetic block 74 is installed on the end of the isolation plate 73 near the electromagnet 71. After the internal workpiece is cleaned, the electromagnet 71 is energized. The magnetic block 74 is attracted by the electromagnet 71 and moves the isolation plate 73 inward, allowing the workpiece to fall and replace the workpiece in the preheating cavity 12. After the replacement is completed, the electromagnet 71 is de-energized, and the isolation plate 73 moves outward under the influence of the second spring 72, isolating the preheating cavity 12 and preventing heat loss from the preheating cavity 12.

[0046] As one embodiment of the present invention, refer to Figure 3 and Figure 6 The moving component 4 includes a slider 41, a fixing frame 42, springs 43, and fixing plates 44. The slider 41 is fixedly installed at the bottom of the fixing frame 42. One end of each of the multiple springs 43 is connected to both sides of the inner surface of the fixing frame 42, and two fixing plates 44 are connected to the other end of the springs 43. When the workpiece is placed inside the two fixing plates 44, the springs 43 press inward against the fixing plates 44 to fix the workpiece. The slider 41 is installed in the slide groove 112 and cooperates with the slide groove 112. After the workpiece is fixed, the fixing frame 42 clamps the workpiece and moves with the slide groove 112, fixing the trajectory of the workpiece movement without the need for manual control.

[0047] As one embodiment of the present invention, refer to Figure 2 , Figure 3 and Figure 6 The outer width of the portion of the slide groove 112 within the preheating chamber 12 is less than the width of the slider 41, and the outer width of the portion of the slide groove 112 extending into the cooling chamber 13 is equal to the width of the slider 41. The outer width of the portion within the preheating chamber 12 being less than the width of the slider 41 can restrict the trajectory of the slider 41 in the horizontal direction to prevent the workpiece from falling off. The outer width of the portion within the cooling chamber 13 being equal to the width of the slider 41 facilitates the workpiece falling into the cooling chamber 13. After cooling is complete, the fixing frame 42 and the workpiece can be removed.

[0048] As one embodiment of the present invention, refer to Figure 3 and Figure 6A buckle 441 is installed on the outside of the fixed plate 44, and a spring 442 is fixedly installed on the inside of the buckle 441. A positioning frame 443 is installed on the outside of the heating chamber 11. The positioning frame 443 has a groove 444 with a gradually decreasing radius that cooperates with the buckle 441. When the buckle 441 contacts the positioning frame 443, the positioning frame 443 will lock the buckle 441, preventing the fixed frame 42 from moving forward with the moving component 4. When the flipping plate 31 flips and flips the fixed frame 42 into the heating chamber 11, the buckle 441 will be squeezed into the fixed frame 42 by the groove 444. When the flipping plate 31 continues to flip and flips the fixed frame 42 back into the preheating chamber 12, the fixed frame 42 will continue to move with the moving component 4 and enter the cooling chamber 13 because the buckle 441 will be locked into the fixed frame 42. With this solution, the workpiece can fall onto the surface of the flipping plate 31 and automatically fall into the cooling chamber 13 after heating.

[0049] As one embodiment of the present invention, refer to Figure 2 A limiting block 114 is installed inside the heating chamber 11. The limiting block 114 is installed at both ends of the flipping groove 111. This solution prevents the fixing plate 44 from flipping into the heating chamber 11 and continuing to slide, which would prevent it from flipping back to the preheating chamber 12 after heating is completed.

[0050] As one embodiment of the present invention, refer to Figures 1 to 3 The heating chamber 11 and the preheating chamber 12 are connected by a tilting groove 111, and an air pump 14 is fixedly installed on the outside of the preheating chamber 12. When gas needs to be continuously introduced into the heating chamber 11, the air pump 14 continuously draws air out, and the gas in the heating chamber 11 is drawn out to the preheating chamber 12 to further preheat the workpiece in the preheating chamber 12.

[0051] As one embodiment of the present invention, refer to Figure 3 , Figure 6 and Figure 7 The height of the groove 112 is equal to the height of the slider 41. When the flip plate 31 flips, the slider 41 is stuck in the groove 112, which drives the fixed plate 44 to rotate, while preventing the fixed plate 44 from shaking in the horizontal direction.

[0052] Working principle: The workpiece is fixed on the fixed frame 42 and placed in the feed port 21. The belt 25 pushes the workpiece into the feed box 22. At this time, the heat insulation component 7 is opened and the workpiece falls into the preheating chamber 12 for preheating. After the workpiece in the heating chamber 11 is cleaned, the flip plate 31 rotates and the workpiece in the preheating chamber 12 enters the heating chamber 11 for cleaning. At the same time, the workpiece in the heating chamber 11 is flipped to the preheating chamber 12 and enters the cooling chamber 13 for cooling along the slide 112.

[0053] The specific implementation method is as follows:

[0054] Feeding process: The workpiece is fixed between the two fixed plates 44 on the fixed frame 42 and placed into the feed port 21. The drive wheel 23 drives the fixed frame 42 to move forward through the driven wheel 24 and the belt 25. At the same time, the drive wheel 23 drives the drive rod 26 to rotate. The drive rod 26 rotates one revolution and drives the feed box 22 to rotate at a fixed angle, so that the feed box 22 is fixed and rotated below the feed port 21. At this time, the fixed frame 42 drives the workpiece to fall into the feed box 22.

[0055] Preheating process: When the workpiece in the heating chamber 11 is flipped to the preheating chamber 12 and enters the cooling chamber 13, the electromagnet 71 is energized, and the magnetic block 74 at the lower end of the isolation plate 73 is attracted and drives the isolation plate 73 to open. At this time, the fixing frame 42 drives the workpiece into the preheating chamber 12, and the buckle 441 on the fixing frame 42 is locked on the positioning frame 443. At this time, the fixing frame 42 stays outside the flipping plate 31 and is preheated by the heat dissipated in the heating chamber 11 and the heat carried by the flowing gas.

[0056] Cleaning process: When the workpiece in the heating chamber 11 is being cleaned, the gas in the air chamber 33 on one side of the rotating shaft 32 begins to expand. When the workpiece in the heating chamber 11 is cleaned, the gas in the air chamber 33 is sufficient to push the push plate 34 to push the locking block 37 to the outside of the air chamber 33. At this time, the locking block 37 does not lock the rotating shaft 32. The rotating shaft 32 rotates and flips the workpiece in the heating chamber 11 to the preheating chamber 12. At this time, the locking block 37 will lock in the air chamber 33 on the other side to stop the rotating shaft 32 from rotating. At this time, the heating chamber 11 continues to heat the subsequent workpieces.

[0057] Cooling process: When the fixed frame 42 and the workpiece are flipped into the heating chamber 11, the buckle 441 on the positioning frame 443 will be squeezed into the fixed frame 42 under the pressure of the groove 444 on the positioning frame 443. After the workpiece is cleaned, it is flipped out again. At this time, because the buckle 441 is squeezed into the fixed frame 42, the fixed frame 42 will no longer be stuck by the positioning frame 443. At this time, the electromagnet 71 is energized and the lower isolation plate 73 of the preheating chamber 12 is opened. At this time, the fixed frame 42 enters the cooling chamber 13 along the slide groove 112.

[0058] The description herein is provided to enable those skilled in the art to implement or use the present disclosure. Various modifications to the present disclosure will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other variations without departing from the scope of the disclosure. Therefore, this disclosure is not limited to the examples and designs described herein, but should be given the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. A double-layer calcining furnace for the production of nano-modified fibers, characterized in that: The furnace includes a furnace body (1), a feeding assembly (2), a tilting assembly (3), a moving assembly (4), a heating rod (5), and a spraying rod (6). The furnace body (1) includes a heating chamber (11), a preheating chamber (12), and a cooling chamber (13). The heating chamber (11) is located on the axis of the furnace body (1). The preheating chamber (12) is located outside the heating chamber (11). The cooling chamber (13) is located at the lower end of the preheating chamber (12). The feeding assembly (2) is installed on the upper end of the furnace body (1). The outer wall of the heating chamber (11) has multiple tilting grooves (111) that penetrate the outer wall of the heating chamber (11). The tilting assembly (3) rotates and is mounted on the upper end of the furnace body (1). The workpiece is installed in the flipping groove (111). The surface of the heating chamber (11) is provided with a sliding groove (112). The sliding groove (112) extends to the cooling chamber (13). The moving component (4) is slidably installed in the sliding groove (112). The heating rod (5) is fixedly installed at the axial position of the heating chamber (11). Multiple spray rods (6) are fixedly installed on the inner wall of the heating chamber (11). The moving component (4) drives the workpiece to the preheating chamber (12) for preheating. The flipping component (3) flips the workpiece in the preheating chamber (12) to the heating chamber (11). At the same time, it takes the workpiece out of the preheating chamber (12) and then takes it into the cooling chamber (13) for cooling by the moving component (4).

2. The double-layer calcining furnace for producing nano-modified fibers according to claim 1, characterized in that: The feeding assembly (2) includes a feeding port (21), a feeding box (22), a drive wheel (23), a driven wheel (24), a belt (25), and a drive rod (26). The feeding port (21) is fixedly installed on one side of the upper end of the furnace body (1). The feeding box (22) is rotatably installed on the upper end of the furnace body (1). The drive wheel (23) is rotatably installed on the lower end of the feeding port (21). Multiple driven wheels (24) are rotatably installed on both sides of the drive wheel (23). The belt (25) cooperates with the driven wheels (24). The upper outer periphery of the feeding box (22) is provided with a mating hole (221). The drive rod (26) is fixedly installed on the lower end of the drive wheel (23) and cooperates with the mating hole (221).

3. The double-layer calcining furnace for producing nano-modified fibers according to claim 1, characterized in that: The flipping assembly (3) includes a flipping plate (31), a rotating shaft (32), an air chamber (33), a push plate (34), a heat insulation plate (35), a spring (36), and a locking block (37). The rotating shaft (32) is rotatably installed in the flipping groove (111), the flipping plate (31) is fixedly installed on the rotating shaft (32), the air chamber (33) is opened at both ends of the rotating shaft (32), the heat insulation plate (35) separates the air chamber (33) into upper and lower layers, the two push plates (34) are respectively movably installed in the air chamber (33), the inner side of the flipping groove (111) is provided with a fixing hole (113), the locking block (37) is movably installed in the fixing hole (113), one end of the spring (36) is connected in the fixing hole (113), and the other end is connected to the bottom end of the locking block (37).

4. The double-layer calcining furnace for producing nano-modified fibers according to claim 1, characterized in that: The preheating cavity (12) is equipped with heat insulation components (7) at both ends. The heat insulation components (7) include an electromagnet (71), a second spring (72), an isolation plate (73), and a magnetic block (74). Two electromagnets (71) are respectively installed at the axial positions at both ends of the preheating cavity (12). Multiple isolation plates (73) are movably installed in a circular array on the outer periphery of the electromagnets (71). One end of the second spring (72) is connected to the outer side of the electromagnet (71) shell, and the other end is connected to one end of the isolation plate (73). The magnetic block (74) is installed on the end of the isolation plate (73) near the electromagnet (71).

5. The double-layer calcining furnace for producing nano-modified fibers according to claim 1, characterized in that: The moving component (4) includes a slider (41), a fixed frame (42), three springs (43), and a fixed plate (44). The slider (41) is fixedly installed at the bottom of the fixed frame (42). One end of each of the three springs (43) is connected to both sides of the inner surface of the fixed frame (42), and two fixed plates (44) are connected to the other end of the three springs (43).

6. The double-layer calcining furnace for producing nano-modified fibers according to claim 5, characterized in that: The outer width of the portion of the chute (112) within the preheating chamber (12) is less than the width of the slider (41), and the outer width of the portion of the chute (112) extending into the cooling chamber (13) is equal to the width of the slider (41).

7. A double-layer calcining furnace for producing nano-modified fibers according to claim 5, characterized in that: A buckle (441) is installed on the outside of the fixing plate (44), and a spring (442) is fixedly installed on the inside of the buckle (441). A positioning frame (443) is installed on the outside of the heating cavity (11), and a groove (444) with a gradually decreasing radius is opened in the positioning frame (443) to cooperate with the buckle (441).

8. The double-layer calcining furnace for producing nano-modified fibers according to claim 1, characterized in that: Limiting blocks (114) are installed inside the heating chamber (11), and the limiting blocks (114) are installed at both ends of the flipping groove (111).

9. A double-layer calcining furnace for producing nano-modified fibers according to claim 3, characterized in that: The heating chamber (11) and the preheating chamber (12) are connected by a flip groove (111), and an air pump (14) is fixedly installed on the outside of the preheating chamber (12).

10. A double-layer calcining furnace for producing nano-modified fibers according to claim 5, characterized in that: The height of the groove (112) is equal to the height of the slider (41).

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