Polyester-polyamide composite heat-insulating box

Abstract

The application relates to a polyester-chiffon composite heat preservation box, which comprises a spinning box body located in the interior of a heat preservation shell, and the gap between the two is filled with heat preservation cotton; the spinning box body comprises a main box body and an auxiliary box body, the main box body is provided with a main box body air inlet pipe and a main box body backflow pipe, the auxiliary box body is provided with an auxiliary box body air inlet pipe and an auxiliary box body backflow pipe, the main box body is provided with a first spinning assembly for forming polyester filaments, the auxiliary box body is provided with a second spinning assembly for forming chiffon filaments, the main box body is provided with a spinning seat, a guide hole is arranged on the side wall of the main box body close to the auxiliary box body, the chiffon filaments spun by the second spinning assembly flow into the spinning seat through the guide hole, and the polyester filaments spun by the first spinning assembly are compounded with the chiffon filaments spun by the second spinning assembly in the spinning seat. The polyester-chiffon composite heat preservation box is a scientific, unified and effective heat preservation system design, can reduce energy consumption and resource waste while ensuring the temperature stability of the polyester-chiffon composite spinning process and the product quality.

Description

Technical Field

[0001] This application relates to the field of textile technology, and in particular to a polyester-nylon composite insulation box. Background Technology

[0002] Polyester-nylon composite spinning technology is one of the key processes in the chemical fiber industry for producing high-value-added, high-performance differentiated fibers. Its core lies in integrating the superior properties of the two polymers through a core-sheath structure. However, this process has extremely stringent requirements for the temperature stability of the production environment. The uniformity and stability of the temperature field directly determine the interfacial bonding strength, cross-sectional morphology, and physical properties of the final product of the composite fiber.

[0003] Currently, in the industrial application of this field in China, there are significant differences in the insulation solutions for spinning boxes, especially composite spinning boxes, resulting in inconsistent quality. Many companies face several common problems caused by unreasonable insulation design: First, severe heat loss, with a large amount of heat generated by high-temperature biphenyl vapor dissipating through the box walls, causing enormous energy waste and significantly increasing production costs; second, fluctuating process temperatures, with poor insulation failing to maintain a stable temperature field within the box over the long term, easily leading to quality problems such as uneven fiber fineness and abnormal component distribution, making it difficult to guarantee the first-grade product rate; third, safety hazards, with excessively high box surface temperatures posing a risk of burns to production operators and also exacerbating the rise in workshop ambient temperature. Therefore, a scientific, unified, and effective insulation system design is urgently needed to ensure the quality of polyester and nylon composite spinning while reducing resource waste. Summary of the Invention

[0004] To address the aforementioned problems, the purpose of this utility model is to provide a polyester-nylon composite insulation box that can effectively reduce energy consumption and resource waste while ensuring stable temperature and product quality in the polyester-nylon composite spinning process.

[0005] Therefore, this utility model provides a polyester-nylon composite insulation box, including a spinning box body for processing core yarn and an insulation shell, comprising: The spinning box is located inside the insulating shell, and the gap between the spinning box and the insulating shell is filled with insulating cotton. The spinning box includes a main box and a secondary box. The main box is provided with a main box air inlet pipe and a main box return pipe, and the secondary box is provided with a secondary box air inlet pipe and a secondary box return pipe. The main box contains a first spinning assembly for forming polyester filaments, and the secondary box contains a second spinning assembly for forming nylon filaments. The main box contains a spinning seat, and a guide hole is opened on the side wall of the main box near the secondary box. The nylon filaments spun by the second spinning assembly flow into the spinning seat through the guide hole. The polyester filaments spun by the first spinning assembly and the nylon filaments spun by the second spinning assembly are combined in the spinning seat.

[0006] In some embodiments, the heat-insulating outer shell includes a foot pedal, a front side panel, a rear side panel, two side end panels, a bottom plate, and a keel. The foot pedal is located on top of the heat-insulating outer shell. The front side panel, rear side panel, and two side end panels are located at the front, rear, and left and right sides of the heat-insulating outer shell, respectively. The bottom plate is located below the heat-insulating outer shell. The keel is installed on the bottom corner of the heat-insulating box and is in the shape of an "L".

[0007] In some embodiments, the rear side panel has a plurality of through holes, and the main housing air intake pipe, the auxiliary housing air intake pipe, the main housing return pipe and the auxiliary housing return pipe all pass through the through holes on the rear side panel and are connected to the outside.

[0008] In some embodiments, the upper part of the spinning box has a pair of hanging feet, the pair of hanging feet are inverted "L" shape, and the upper part of the hanging feet is folded outward to form a hanging lug for hanging on a hoisting device.

[0009] In some embodiments, the bottom of the spinning seat is provided with a ceramic fiber pad, a hard rubber asbestos board and a support plate in sequence, and is fixedly connected to the spinning box.

[0010] In some embodiments, a cement board is embedded in the base plate, and the cement board is adjacent to the bottom of the spinning box. Compared with the prior art, the beneficial effects of this utility model are as follows: This invention utilizes a composite structure design of an insulated outer shell and a spinning box, filled with insulating cotton, combined with a multi-layered, high-efficiency thermal insulation and sealing system at the bottom of the box, consisting of a ceramic fiber pad, a rigid rubber asbestos board, a support plate, and a cement board. This constructs a standardized, high-performance insulation system. This design significantly reduces heat loss from the spinning box, ensuring extreme stability and uniformity of the process temperature during the polyester-nylon composite spinning process, thereby significantly improving the product quality and consistency of the core-sheath composite yarn. Simultaneously, this solution effectively reduces energy consumption and resource waste during production. Furthermore, the optimized design of the hanging feet and keel enhances the overall structural stability and ease of hoisting and transportation, demonstrating excellent practicality and economy. Attached Figure Description

[0011] Figure 1 This is a top view of a polyester-nylon composite insulation box provided in an embodiment of this application.

[0012] Figure 2 for Figure 1 The cross-sectional view of the polyester-nylon composite insulation box shown is shown.

[0013] Figure 3 for Figure 2 The image shows a magnified view of a portion of region A.

[0014] Among them, 100. Polyester-cotton composite insulation box; 1. Spinning box body; 11. Main box body; 101. Guide hole; 12. Auxiliary box body; 13. Hanging feet; 14. Auxiliary box body air inlet pipe; 15. Main box body air inlet pipe; 161. Main box body return pipe; 162. Auxiliary box body return pipe; 17. Spinning seat; 2. Insulation shell; 21. Front side panel; 22. Rear side panel; 23. Foot pedal; 24. Base plate; 25. Side end plates; 26. Keel; 3. Insulation cotton; 4. Cement board; 5. Ceramic fiber board; 6. Hard rubber asbestos board; 7. Support plate; 8. Fixing screws. Detailed Implementation

[0015] This application relates to a polyester-nylon composite insulation box, which can establish a standardized and high-efficiency insulation system through the integrated design of the composite box body and the multi-layer insulation system. Under the premise of ensuring the temperature stability of polyester-nylon composite spinning and product quality, it can significantly achieve energy saving, consumption reduction and efficient resource utilization.

[0016] See Figures 1-2The polyester-nylon composite insulation box 100 includes a spinning box body 1 and an insulation shell 2. The spinning box body 1 is built into the middle of the insulation shell 2, and the gap between the two is filled with insulation cotton 3 to prevent heat loss and ensure the temperature requirements of the composite yarn. The spinning box 1 includes a main box 11 and a secondary box 12. The main box 11 is provided with a main box air inlet pipe 15 and a main box return pipe 161. The secondary box 12 is provided with a secondary box air inlet pipe 14 and a secondary box return pipe 162. The main box 11 is provided with a first spinning assembly for forming polyester filaments. The secondary box 12 is provided with a second spinning assembly for forming nylon filaments. The main box 11 is provided with a spinning seat 17. A guide hole 101 is opened on the side wall of the main box 11 near the secondary box 12. The nylon filaments spun by the second spinning assembly enter the spinning seat 17 through the guide hole 101. The polyester filaments spun by the first spinning assembly and the nylon filaments spun by the second spinning assembly are combined in the spinning seat 17.

[0017] The thermal insulation shell 2 includes a front side panel 21, a rear side panel 22, a foot pedal 23, a bottom plate 24, two side end plates 25, and a keel 26. The foot pedal 23 is the top of the thermal insulation shell 2 and is made of Q235A patterned plate with a thickness of 3mm. The front side panel 21, the rear side panel 22, and the two side end plates 25 are the front wall, the rear wall, and the left and right side walls of the thermal insulation shell 2, respectively, and are all made of SUS304 stainless steel with a thickness of 1.5mm. The bottom plate 24 is the bottom of the thermal insulation shell and is made of SUS304 stainless steel with a thickness of 2mm. The keel 26 covers the bottom corners of the thermal insulation shell, is L-shaped, and is made of #3 angle iron, and is constructed to prevent the thermal insulation shell from deforming.

[0018] In this embodiment, several through holes are provided on the rear side plate 22. The main housing air inlet pipe 15, the auxiliary housing air inlet pipe 14, the main housing return pipe 161, and the auxiliary housing return pipe 162 all pass through the through holes on the rear side plate 22 and connect to the outside. The main housing 11 and the auxiliary housing 12 are arranged side by side and are airtightly isolated from each other. The main housing air inlet pipe 15 and the auxiliary housing air inlet pipe 14 draw in biphenyl vapor to heat the spinning box 1, and the biphenyl is returned to the biphenyl furnace by the main housing return pipe 161 and the auxiliary housing return pipe 162, respectively. This cycle ensures that the temperature inside the spinning box 1 is constant. At the same time, the process temperature is continuously maintained by inserting the insulation cotton 3 into the gap between the spinning box 1 and the insulation shell 2.

[0019] In this embodiment, the upper part of the spinning box 1 has a pair of hanging feet 13, which are inverted "L" shape, and the upper part of the hanging feet 13 is folded outward to form a hanging ear for hanging on the hoisting equipment. When the heat insulation shell 2 is hoisted, the hanging ear is physically connected to the hoisting equipment, which facilitates installation and transportation.

[0020] See Figure 3 , Figure 3 yes Figure 2The enlarged view of area A shows that, from top to bottom, the bottom of the spinning base 17 is provided with a ceramic fiber pad 5, a rigid rubber asbestos board 6, and a support plate 7. The ceramic fiber pad 5 directly contacts the bottom of the spinning base for high-temperature insulation; the rigid rubber asbestos board 6 is located below the ceramic fiber pad 5 to provide an elastic seal and ensure airtightness; the support plate 7 is located below the rigid rubber asbestos board 6 to enhance the strength and rigidity of the structure. A fixing screw 8 is inserted from below the bottom support plate 7, passes upwards through the support plate 7, the rigid rubber asbestos board 6, and the ceramic fiber pad 5, and finally screws into the threaded hole of the spinning box body 1. When the fixing screw 8 is tightened, the support plate 7 is compressed upwards, causing the middle sealing layer (rigid rubber asbestos board 6 and ceramic fiber pad 5) to compress and deform, thus simultaneously achieving the three functions of "fastening," "sealing," and "insulation."

[0021] In this embodiment, cement board 4 is embedded in the base plate 24. The thickness of cement board 4 is 10mm. Cement board 4 is adjacent to the bottom of spinning box 1 and is used to insulate the bottom area of ​​polyester-nylon composite insulation box 100.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope. The scope of protection of the present invention is defined by the appended claims, specification, and their equivalents.

Claims

1. A polyester-nylon composite thermal insulation box, comprising a spinning box body for processing core-sheath yarns and a thermal insulation outer shell, characterized in that: The spinning box is located inside the insulating shell, and the gap between the spinning box and the insulating shell is filled with insulating cotton. The spinning box includes a main box and a secondary box. The main box is provided with a main box air inlet pipe and a main box return pipe, and the secondary box is provided with a secondary box air inlet pipe and a secondary box return pipe. The main box contains a first spinning assembly for forming polyester filaments, and the secondary box contains a second spinning assembly for forming nylon filaments. The main box contains a spinning seat, and a guide hole is opened on the side wall of the main box near the secondary box. The nylon filaments spun by the second spinning assembly flow into the spinning seat through the guide hole. The polyester filaments spun by the first spinning assembly and the nylon filaments spun by the second spinning assembly are combined in the spinning seat.

2. The polyester-nylon composite insulation box according to claim 1, characterized in that, The heat-insulating outer shell includes a foot pedal, a front side panel, a rear side panel, two side end panels, a bottom plate, and a keel. The foot pedal is located on top of the heat-insulating outer shell. The front side panel, rear side panel, and two side end panels are located at the front, rear, and left and right sides of the heat-insulating outer shell, respectively. The bottom plate is located at the bottom of the heat-insulating outer shell. The keel is installed on the bottom corner of the heat-insulating box and is in the shape of an "L".

3. The polyester-nylon composite insulation box according to claim 2, characterized in that, The rear side panel has several through holes, through which the main housing air intake pipe, the auxiliary housing air intake pipe, the main housing return pipe, and the auxiliary housing return pipe all pass and connect to the outside.

4. The polyester-nylon composite insulation box according to claim 1, characterized in that, The upper part of the spinning box has a pair of hanging feet, which are inverted "L" shape, and the upper part of the hanging feet is folded outward to form a hanging ear for hanging on the hoisting equipment.

5. The polyester-nylon composite insulation box according to claim 1, characterized in that, The bottom of the spinning seat is provided with a ceramic fiber pad, a hard rubber asbestos board and a support plate in sequence, and is fixedly connected to the spinning box.

6. The polyester-nylon composite insulation box according to claim 2, characterized in that, The base plate is also inlaid with a cement board, which is adjacent to the bottom of the spinning box.

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