Drying equipment for composite coiled material production

Abstract

The invention discloses drying equipment for composite coiled material production, and relates to the technical field of drying equipment, the drying equipment comprises a preheating box, a drying box and a cooling box which are horizontally arranged in sequence, a preheating roller, a drying roller and a cooling roller are respectively arranged in the box body, and a to-be-dried coiled material penetrates through each roller in sequence; the preheating roller and the drying roller are heated step by step through high-temperature heat conduction oil, gradient utilization of heat is achieved, the drying efficiency is improved, a low-temperature medium is introduced into a hollow part of the cooling roller to cool coiled materials, condensate water is absorbed by a renewable water absorption material in an adsorption layer and can be regenerated through heating, and the equipment is provided with a gas circulation system. Water-containing high-temperature gas exchanges heat with dry gas through a heat exchange box, the energy utilization rate is increased, a transmission system adopts a belt wheel and a synchronous belt and is driven by a motor, synchronous rotation of the roller is achieved, and it is guaranteed that the coiled material runs at a constant speed.

Description

Technical Field

[0001] The invention relates to the technical field of drying equipment, in particular to drying equipment for producing composite coiled materials. Background Art

[0002] At present, in the production process of composite coils, drying equipment is one of the key process links. Traditional drying equipment has shortcomings in drying efficiency, energy utilization, product quality, etc., and it is difficult to meet the requirements of modern production for high efficiency, energy saving and environmental protection.

[0003] Chinese invention patent CN117685764B discloses a uniform dehydration and drying device and method for waterproof coiled materials, which effectively solves the problem that the machine body needs to be opened for installation when the coiled materials are arranged in an M shape in the machine body. The device includes a machine body, a feed pipe is installed at one end of the machine body, a discharge pipe is installed at the other end, a controller is installed on the front, and four supporting feet are installed on the outside. Fixed mounting frames are symmetrically installed on the upper and lower sides of the machine body near the two ends of the feed pipe and the discharge pipe. A guide roller is rotatably installed inside the fixed mounting frame, which is connected to the second slot through a clamping rod. When the first electromagnet is energized, a repulsive force is generated on the first magnetic block, and the clamping blocks on the upper and lower sides clamp the ends of the coiled material, which is convenient for loading the coiled material; when the clamping rod is connected to the first slot, the first electromagnet is energized to generate a repulsive force on the first magnetic block, so that the friction roller contacts the surface of the coiled material, which is convenient for driving the coiled material to move continuously through the inside of the machine body.

[0004] The above design solves the problem of difficult coil loading by improving the mechanical structure, but it still has certain limitations, such as low drying efficiency, low energy utilization, complex equipment structure, and inconvenient maintenance, which cannot meet the requirements of modern production for high efficiency and energy saving.

[0005] Therefore, there is an urgent need for a new type of drying equipment for composite coil production to improve drying efficiency, reduce energy consumption, simplify equipment structure, facilitate maintenance, and meet the needs of modern production. Summary of the invention

[0006] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide a drying device for composite coil production to solve the above-mentioned problems.

[0007] The objective of the present invention is achieved through the following technical scheme: a drying device for composite coil production, comprising a preheating box, a drying box and a cooling box arranged horizontally in sequence, wherein two preheating rollers, two drying rollers and two cooling rollers are rotatably connected in the preheating box, the drying box and the cooling box respectively, and the same coil to be dried is arranged in the preheating box, the drying box and the cooling box, and the coil to be dried passes through the preheating roller, the drying roller and the cooling roller alternately in sequence from the upper end of the preheating roller in a horizontal direction and passes out from the lower end of the cooling roller in a horizontal direction, the preheating roller, the drying roller and the cooling roller are all provided with main through holes along their axial directions, and the preheating roller, the drying roller and the cooling roller are provided with multiple through holes along their radial directions, and the multiple through holes are all connected to their corresponding main through holes, and the cooling roller away from the drying roller is connected to an external air supply device through a pipeline. The heat exchange tube is fixedly connected to the drying drum by the adapter ring and the heat exchange tube is located in the heat exchange box.

[0008] The present invention arranges a preheating drum, a drying drum and a cooling drum in a preheating box, a drying box and a cooling box, and uses high-temperature heat-conducting oil to heat the preheating drum and the drying drum step by step, so as to realize gradient utilization of heat and improve drying efficiency; a low-temperature medium is introduced into the cooling drum to cool the coil, and condensed water is absorbed by the renewable water-absorbing material in the adsorption layer and can be regenerated by heating; the equipment is provided with a gas circulation system, and the water-containing high-temperature gas exchanges heat with the drying gas through the heat exchange box, so as to improve energy utilization rate; the transmission system adopts a pulley and a synchronous belt, and is driven by a motor to realize synchronous rotation of the drums, so as to ensure that the coils run at a constant speed; the preheating drum, the drying drum and the cooling drum are all made of high-thermal-conductivity metal materials, and the heat exchange pipes are made of pure copper materials; the outside of the box body is covered with a heat-insulating layer to reduce heat loss; a baffle is provided on the side of the drum that is not in contact with the coil, so that the hot gas can only be ejected from the through hole in contact with the coil, so as to improve the drying effect and uniformity; the exhaust port of the cooling box is connected with a solenoid valve, so as to accurately control the exhaust volume and optimize the cooling process.

[0009] The preheating box, drying box and cooling box are all provided with through grooves for the coils to be dried to pass through at positions corresponding to the coils to be dried. The part of the heat exchange tube located in the heat exchange box is a spiral structure.

[0010] The bottom ends of the preheating box and the drying box are connected to the heat exchange box through the return pipe 2. The heat exchange box is a hollow structure, and an exhaust port is provided at the top of the heat exchange box. The top of the cooling box is also provided with an exhaust port.

[0011] The two ends of the preheating drum, the drying drum and the cooling drum pass through the preheating box, the drying box and the cooling box respectively, and one end of the passing part is fixedly connected with a pulley, and the outer diameters of the multiple preheating drums and the drying drums are equal.

[0012] The two adjacent pulleys on the preheating drum and the drying drum are connected by a synchronous belt, and one end of the drying drum away from the synchronous belt is also fixedly connected to a pulley, and the outer end of the pulley is connected to motor 1 through the synchronous belt, and motor 1 is fixedly connected to the top of the drying box.

[0013] The pulleys on the two cooling drums are also connected by a synchronous belt. One end of one cooling drum away from the synchronous belt is also fixedly connected to a pulley, and the outer end of the pulley is connected to motor 2 through a synchronous belt, and motor 2 is fixedly connected to the top of the cooling box.

[0014] The adsorption layer is filled with renewable water-absorbing material, the outer diameter of the adsorption layer is larger than the outer diameter of the preheating drum, and the adsorption layer is provided with through holes corresponding to the outer ends of the cooling drum.

[0015] The part of the heat exchange tube located in the heat exchange box is made of pure copper. The outer ends of the preheating box, drying box and cooling box are covered with an insulation layer. The preheating drum, drying drum and cooling drum are all made of high thermal conductivity metal materials.

[0016] The side of the outer ends of the preheating drum, the drying drum and the cooling drum that is not in contact with the coil to be dried is provided with a baffle to block the gas from flowing out of the through hole so that the gas can only be ejected from the through hole in contact with the coil to be dried. A solenoid valve is fixedly connected to the exhaust port on the cooling box.

[0017] The beneficial effects of the present invention are: 1. High drying efficiency, energy saving and environmental protection. By setting up preheating rollers and drying rollers, high-temperature heat transfer oil is used for step-by-step heating to achieve gradient heating of the dried coils, which improves the drying efficiency. The temperature of the heat transfer oil gradually decreases during the flow process, which realizes the gradient utilization of heat, saves energy and reduces production costs.

[0018] 2. Gas recycling, high energy utilization rate. The equipment is designed with a complete gas circulation system. The dry gas is fully utilized. The high-temperature gas containing moisture exchanges heat with the dry gas in the heat exchange tube through the heat exchange box, which further improves the energy utilization rate, reduces energy consumption, and meets the requirements of energy conservation and environmental protection.

[0019] 3. The water-absorbing material is renewable, which reduces maintenance costs. The adsorption layer is filled with renewable water-absorbing materials, such as silica gel, activated carbon or molecular sieve, which can absorb the condensed water generated during the cooling process. When the water-absorbing material is full of water, it can be regenerated by heating and reused, which reduces the cost of material replacement and extends the service life of the equipment.

[0020] 4. The transmission system is optimized, and the operation is stable and reliable. The preheating drum and the drying drum are connected by pulleys and synchronous belts and are driven by a motor to achieve synchronous rotation, ensuring that the coil to be dried runs at a constant speed in the equipment, avoiding tension changes and improving the uniformity of the drying effect. The cooling drum is driven by an independent motor and the rotation speed can be flexibly adjusted to meet different cooling needs.

[0021] 5. Energy saving and heat preservation, reducing energy consumption. The outer ends of the preheating box, drying box and cooling box are covered with an insulation layer, which reduces heat loss, maintains the temperature inside the equipment stable, improves the thermal insulation performance of the equipment, and reduces energy consumption.

[0022] 6. The drying effect is uniform and the product quality is high. A baffle is provided on the side of the outer end of the drum that is not in contact with the coil to be dried, so that the hot gas can only be ejected from the through hole in contact with the coil, ensuring that the hot gas is concentrated on the surface of the coil, improving the drying efficiency and uniformity, and ensuring product quality.

[0023] 7. High degree of automation and easy operation. The equipment can automatically switch the working mode of the cooling drum according to needs. Through the three-way valve and external control system, it can realize automatic switching of heat transfer oil and refrigeration medium. The exhaust port on the cooling box is fixedly connected with a solenoid valve, which can accurately control the exhaust volume, optimize the cooling process, and is easy to operate, reducing labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is the overall structure diagram of the present invention; Figure 2 It is an overall exploded view of the present invention; Figure 3 The local explosion of the present invention Figure 1 ; Figure 4 The local explosion of the present invention Figure 2 ; Figure 5 The local explosion of the present invention Figure 3 ; Figure 6 The local explosion of the present invention Figure 4 ; Figure 7 It is a front view of the present invention; Figure 8 For the present invention Figure 7 Middle AA section view; Fig. 9 For the present invention Figure 8 Middle BB section view; Fig.10 For the present invention Figure 8 Middle CC section view; Fig.11 For the present invention Figure 8 Middle DD section view; Fig.12 For the present invention Figure 8 Enlarged view of point E in the middle; Fig.13 For the present invention Fig.11 Enlarged view of point F in the middle; Fig.14 It is the appearance structure diagram of the present invention.

[0025] Description of the symbols in the figure 1. Preheating box; 2. Drying box; 3. Cooling box; 4. Preheating roller; 5. Drying roller; 6. Cooling roller; 7. Coil to be dried; 8. Main through hole; 9. Heat exchange tube; 10. Reflux pipe 1; 11. Heat exchange box; 12. Slip ring; 13. Adsorption layer; 14. Reflux pipe 2; 15. Pulley. DETAILED DESCRIPTION

[0026] The technical solution of the present invention will be clearly and completely described below in conjunction with the 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 those skilled in the art without creative work are within the scope of protection of the present invention.

[0027] It is to be noted that the concepts of directions “left”, “right”, “up”, “down”, “front”, “back”, “inside” and “outside” in the following schemes are all relative directions and will not be listed one by one here.

[0028] Example 1 like Figures 1 to 14 As shown, this embodiment provides a drying device for composite coil production, including a preheating box 1, a drying box 2 and a cooling box 3 arranged horizontally in sequence, in which two preheating rollers 4, two drying rollers 5 and two cooling rollers 6 are rotatably connected respectively, and the same coil 7 to be dried passes through the rollers in the preheating box 1, the drying box 2 and the cooling box 3 in sequence to achieve continuous drying treatment.

[0029] The coil 7 to be dried starts from the upper end of the preheating drum 4 in the horizontal direction, passes through the preheating drum 4, the drying drum 5 and the cooling drum 6 alternately in sequence, and finally passes out from the lower end of the cooling drum 6 in the horizontal direction. Each of the preheating drum 4, the drying drum 5 and the cooling drum 6 is provided with a main through hole 8 along its axial direction, and a plurality of through holes are provided in the radial direction, and these through holes are connected with the corresponding main through holes 8.

[0030] The cooling drum 6 far away from the drying drum 5 is connected to the external air supply equipment through a pipeline for introducing normal temperature gas. The other end of the cooling drum 6 is connected to the cooling drum 6 close to the drying drum 5 through an adapter ring and a pipeline. The other end of the cooling drum 6 close to the drying drum 5 is fixedly connected to the drying drum 5 close to the cooling drum 6 through an adapter ring with a heat exchange tube 9. The remaining adjacent drying drums 5 and preheating drums 4 are connected through adapter rings and pipelines. The preheating drum 4 far away from the drying drum 5 is connected to the heat exchange box 11 through a reflux pipe 10.

[0031] All preheating rollers 4, drying rollers 5 and cooling rollers 6 are hollow structures. The hollow parts of adjacent preheating rollers 4 and drying rollers 5 are connected in sequence through slip rings 12 and pipelines, and are connected to an external thermal oil heating system for introducing high-temperature thermal oil. The hollow parts of the two cooling rollers 6 are also connected to the pipeline through slip rings 12, and are connected to an external refrigeration system and a thermal oil heating system through a three-way valve, so that low-temperature or high-temperature media can be introduced as needed.

[0032] The outer end of the cooling drum 6 is fixedly connected with an adsorption layer 13 for absorbing condensed water generated during the cooling process. The heat exchange tube 9 is located in the heat exchange box 11, and its part in the heat exchange box 11 is a spiral structure to increase the heat exchange area.

[0033] On the preheating box 1, the drying box 2 and the cooling box 3, positions corresponding to the coils 7 to be dried are provided with through grooves for the coils to pass through, so as to facilitate the installation and operation of the coils. The bottom ends of the preheating box 1 and the drying box 2 are connected to the heat exchange box 11 through the return pipe 14. The heat exchange box 11 is a hollow structure with an exhaust port at the top thereof for discharging hot and humid gases. The top of the cooling box 3 is also provided with an exhaust port.

[0034] Working process: When the device is used for drying, the coil 7 to be dried is first passed through the preheating drum 4, the drying drum 5 and the cooling drum 6 in sequence, so that a continuous transmission path is formed in the device.

[0035] Next, high-temperature heat transfer oil is introduced into the hollow parts of the preheating drum 4 and the drying drum 5. The high-temperature heat transfer oil first enters the drying drum 5 close to the cooling drum 6 to heat it; then it flows through another drying drum 5 and the preheating drum 4 close to the drying drum 5 in sequence, and finally reaches the preheating drum 4 far away from the drying drum 5. As the heat transfer oil flows, the temperature gradually decreases, so that the heating of the to-be-dried coil 7 by each drum shows a step-by-step decreasing trend, forming a gradient heating effect.

[0036] At the same time, the external air supply equipment introduces room temperature gas into the cooling drum 6 far away from the drying drum 5. When the gas passes through the cooling drum 6, it exchanges heat with the hollow part of the cooling drum 6, the moisture is condensed, and the gas becomes dry. The dry gas passes through the adapter ring and the pipeline, and flows through the cooling drum 6 close to the drying drum 5, the heat exchange tube 9, the drying drum 5 and the preheating drum 4 in turn.

[0037] In the drying drum 5 and the preheating drum 4, the gas passes through the main through hole 8 and multiple through holes, sprays out from the drum surface, and directly contacts the coil 7 to be dried. In the process of contacting the coil, the gas is heated and takes away the moisture on the surface of the coil to achieve the purpose of drying. The high-temperature gas containing moisture then enters the heat exchange box 11 from the bottom of the preheating box 1 and the drying box 2 through the return pipe 2 14 and the return pipe 1 10.

[0038] In the heat exchange box 11, the hot and humid gas exchanges heat with the dry gas in the heat exchange tube 9, releasing heat, so that the dry gas is preheated, thereby improving the utilization efficiency of the gas. After releasing the heat, the hot and humid gas is discharged from the exhaust port at the top of the heat exchange box 11.

[0039] After the drying process, the coil 7 to be dried enters the cooling box 3. At this time, a low-temperature medium such as cold water or coolant is introduced into the hollow part of the cooling drum 6 to cool the cooling drum 6, thereby cooling the coil. During the cooling process, the water vapor in the cooling box 3 is condensed, and the condensed water is absorbed by the water-absorbing material in the adsorption layer 13, such as silica gel, activated carbon, molecular sieve, etc.

[0040] When the water-absorbing material in the adsorption layer 13 is full of water, the three-way valve can be switched to pass high-temperature heat transfer oil into the hollow part of the cooling drum 6 to heat it. The heated cooling drum 6 transfers heat to the adsorption layer 13 to evaporate the water in the water-absorbing material and regenerate the water-absorbing material. During the regeneration process, the exhaust port at the top of the cooling box 3 is opened to discharge the generated moisture to ensure the continuous and efficient operation of the equipment.

[0041] Efficient drying and energy saving. By setting a preheating drum 4 and a drying drum 5 and using high-temperature heat-conducting oil for step-by-step heating, the coil 7 to be dried can be heated evenly and fully, thereby improving the drying efficiency. At the same time, the temperature of the heat-conducting oil gradually decreases during the flow process, thereby realizing the gradient utilization of heat and saving energy.

[0042] Gas recycling: The equipment is designed with a complete gas circulation system. After being dried in the cooling drum 6, the dry gas flows through the heat exchange tube 9, the drying drum 5 and the preheating drum 4 in sequence. It is heated during the drying and preheating process, making full use of the thermal energy of the gas. At the same time, the hot and humid gas is recovered through the heat exchange box 11, further improving the energy utilization rate.

[0043] The water-absorbing material is regenerated. The adsorption layer 13 is filled with renewable water-absorbing material, which can absorb condensed water generated during the cooling process. When the water-absorbing material is full of water, it can be regenerated by heating and reused, which reduces the cost of material replacement and extends the service life of the equipment.

[0044] The structure is reasonable and maintenance is convenient. The preheating box 1, the drying box 2 and the cooling box 3 are all provided with through grooves to facilitate the installation and replacement of the coil 7 to be dried. The design of the roller makes the coil take an "S"-shaped path in the equipment, which increases the contact area of ​​drying and cooling and enhances the effect.

[0045] The heat exchange efficiency is high. The part of the heat exchange tube 9 in the heat exchange box 11 is designed as a spiral structure, which increases the heat exchange area, improves the heat exchange efficiency, and makes the heat exchange of the gas more sufficient.

[0046] Environmentally friendly, the equipment reduces the leakage of heat and moisture through a closed circulation system, reducing the impact on the environment. At the same time, by regenerating absorbent materials, it reduces the generation of waste and meets environmental protection requirements.

[0047] The equipment has a high degree of automation. The equipment can automatically switch the working mode of the cooling drum 6 according to the needs. Through the three-way valve and the external control system, the automatic switching of the heat transfer oil and the refrigeration medium is realized. The operation is simple and the labor cost is reduced.

[0048] In summary, the drying equipment for composite coil production provided in this embodiment has the advantages of simple structure, high drying efficiency, high energy utilization rate, and easy maintenance. It is suitable for the drying production of various composite coils, improves production efficiency, reduces production costs, and has broad application prospects.

[0049] Example 2 like Figures 1 to 14 As shown, based on Example 1, this example further optimizes the transmission system of the drying equipment for composite coil production.

[0050] Both ends of the preheating drum 4, the drying drum 5 and the cooling drum 6 pass through the preheating box 1, the drying box 2 and the cooling box 3 respectively, wherein one end of the passing part is fixedly connected with a pulley 15, and the outer diameters of the plurality of preheating drums 4 and the drying drum 5 are equal.

[0051] The two adjacent pulleys 15 on the preheating drum 4 and the drying drum 5 are connected by a synchronous belt, and one end of one drying drum 5 away from the synchronous belt is also fixedly connected with a pulley 15, and the outer end of the pulley 15 is connected to a motor 1 through a synchronous belt, and the motor 1 is fixedly connected to the top of the drying box 2.

[0052] The pulleys 15 on the two cooling drums 6 are also connected by a synchronous belt. One end of one cooling drum 6 away from the synchronous belt is also fixedly connected with a pulley 15. The outer end of the pulley 15 is connected to motor 2 through a synchronous belt, and motor 2 is fixedly connected to the top of the cooling box 3.

[0053] Working process: When the equipment is running, the motor 1 drives the drying drum 5, and through the fixedly connected pulley 15 and the synchronous belt, the preheating drum 4 and the drying drum 5 are driven to rotate synchronously. Since the outer diameters of the preheating drum 4 and the drying drum 5 are equal, their surface linear speeds are consistent, ensuring that the coil 7 to be dried runs at a constant speed in the preheating box 1 and the drying box 2.

[0054] Similarly, the second motor drives a cooling drum 6, and drives the two cooling drums 6 to rotate synchronously through the pulley 15 and the synchronous belt. In this way, the coil 7 to be dried can also maintain a stable speed in the cooling box 3 to complete the cooling process.

[0055] Through such a transmission system design, the rotation speeds of the preheating drum 4, the drying drum 5 and the cooling drum 6 can be precisely controlled to ensure smooth transmission of the coiled material 7 to be dried in the equipment, thereby improving the efficiency and quality of drying and cooling.

[0056] Synchronous transmission ensures stability. The preheating drum 4 and the drying drum 5 are connected through the pulley 15 and the synchronous belt, and are driven by the motor 1 to realize synchronous rotation. This allows the coil 7 to be dried to run at a constant speed in the preheating box 1 and the drying box 2, avoiding changes in coil tension caused by inconsistent speeds and improving the uniformity of the drying effect.

[0057] The outer diameters are equal and the linear speeds are consistent. The outer diameters of the preheating drum 4 and the drying drum 5 are equal, which ensures that the surface linear speeds of the drums are consistent, avoids the slippage or wrinkling of the coil 7 to be dried during the transmission process, and ensures the product quality.

[0058] Independent drive and flexible control: the cooling drum 6 is driven by the motor 2 alone, and the rotation speed of the cooling drum 6 can be independently adjusted according to the cooling demand, so that the coil 7 to be dried can be fully cooled in the cooling box 3, thereby improving the cooling effect.

[0059] The structure is compact and space-saving. Motor 1 and motor 2 are respectively fixed on the top of the drying box 2 and the cooling box 3, which utilizes the vertical space of the equipment, reduces the floor space of the equipment, and facilitates the installation and layout of the equipment.

[0060] The maintenance is convenient and the cost is reduced. The transmission mode of the pulley 15 and the synchronous belt is adopted, the structure is simple and the maintenance is convenient. When the synchronous belt or the pulley 15 needs to be replaced, the operation is simple and quick, and the maintenance cost is reduced.

[0061] Reduce energy consumption and improve efficiency. By precisely controlling the operation of motor 1 and motor 2, the speed of the drum can be adjusted according to production needs, avoiding unnecessary energy consumption and improving the energy utilization efficiency of the equipment.

[0062] Reduce noise and improve the environment. The synchronous belt drive runs smoothly and has low noise, which reduces noise pollution during equipment operation and improves the production environment.

[0063] Improve safety, the transmission system has a simple structure, reduces mechanical transmission components, reduces equipment failure rate, and improves the safety of equipment operation.

[0064] Through the above optimization, this embodiment further improves the transmission efficiency and operation stability of the equipment on the basis of Embodiment 1, ensures the smooth transmission of the coiled material 7 to be dried during the preheating, drying and cooling processes, and provides a reliable guarantee for improving product quality and production efficiency.

[0065] Example 3 like Figures 1 to 14 As shown, based on Example 1 and Example 2, this example further optimizes the design of the drying equipment for composite coil production to improve the drying efficiency and energy utilization rate of the equipment.

[0066] First, the adsorption layer 13 is filled with renewable water-absorbing materials, such as silica gel, activated carbon or molecular sieves. The outer diameter of the adsorption layer 13 is larger than the outer diameter of the preheating drum 4, which increases the surface area in contact with the air and improves the water absorption efficiency. The adsorption layer 13 is provided with through holes corresponding to the outer end of the cooling drum 6 to ensure that the condensed water can be quickly absorbed and prevent moisture from accumulating inside the equipment.

[0067] Secondly, the part of the heat exchange tube 9 located in the heat exchange box 11 is made of pure copper. Pure copper has excellent thermal conductivity and can significantly improve the heat exchange efficiency of the gas. The outer ends of the preheating box 1, the drying box 2 and the cooling box 3 are covered with a thermal insulation layer, which reduces heat loss and improves the thermal insulation performance of the equipment. The preheating drum 4, the drying drum 5 and the cooling drum 6 are all made of high thermal conductivity metal materials, such as aluminum alloy or copper alloy, which further improves the heat conduction efficiency.

[0068] In addition, baffles are provided on the side of the outer ends of the preheating drum 4, the drying drum 5 and the cooling drum 6 that are not in contact with the to-be-dried coil 7, for blocking the gas from flowing out of the through holes, so that the gas can only be ejected from the through holes in contact with the to-be-dried coil 7. This design ensures that the hot gas can act on the surface of the coil in a concentrated manner, thereby improving the drying effect. A solenoid valve is fixedly connected to the exhaust port on the cooling box 3, which facilitates precise control of the exhaust volume and optimizes the cooling process.

[0069] Working process: During the operation of the equipment, the coil 7 to be dried passes through the preheating drum 4, the drying drum 5 and the cooling drum 6 in sequence. The preheating drum 4, the drying drum 5 and the cooling drum 6 rotate synchronously through the transmission system described in Example 2 to ensure smooth transmission of the coil in the equipment.

[0070] High-temperature heat-conducting oil is passed into the hollow parts of the preheating drum 4 and the drying drum 5 to heat each drum in turn. Since the preheating drum 4 and the drying drum 5 are made of high thermal conductivity metal materials, they have high heat conduction efficiency and can quickly transfer heat to the coiled material 7 to be dried.

[0071] A low-temperature medium is introduced into the hollow part of the cooling drum 6 to cool the coil. The regenerable water-absorbing material filled in the adsorption layer 13 can absorb the condensed water generated during the cooling process. When the adsorption layer 13 is saturated with the water, the cooling drum 6 can be heated by introducing high-temperature heat transfer oil to regenerate the water-absorbing material. During the regeneration process, the solenoid valve on the cooling box 3 is opened to discharge the generated moisture.

[0072] During the gas circulation process, the dry gas enters the heat exchange box 11 through the heat exchange tube 9. Since the heat exchange tube 9 is made of pure copper, it has excellent thermal conductivity and can efficiently exchange heat. The insulation layer covering the outer ends of the preheating box 1, the drying box 2 and the cooling box 3 effectively reduces heat loss and keeps the temperature inside the equipment stable.

[0073] A baffle is provided on the side of the outer ends of the preheating drum 4, the drying drum 5 and the cooling drum 6 that are not in contact with the coil 7 to be dried to prevent hot gas from flowing out from unnecessary through holes, ensuring that the hot gas acts on the surface of the coil and improving the drying efficiency.

[0074] The adsorption layer 13 is optimally designed, and is filled with renewable water-absorbing materials, which enhances the water absorption capacity and prolongs the service life of the adsorption layer 13. The outer diameter of the adsorption layer 13 is larger than the outer diameter of the preheating drum 4, which increases the adsorption area and improves the water absorption efficiency.

[0075] To improve the thermal conductivity, the heat exchange tube 9 is made of pure copper, and the preheating drum 4, the drying drum 5 and the cooling drum 6 are all made of high thermal conductivity metal materials, which significantly improves the thermal conductivity of the equipment, promotes the rapid transfer of heat, and improves the drying and cooling efficiency.

[0076] To improve the energy utilization rate, the outer ends of the preheating box 1, the drying box 2 and the cooling box 3 are covered with a heat insulation layer, which reduces heat loss, reduces energy consumption, and improves the energy utilization rate of the equipment.

[0077] In order to improve the drying efficiency, a baffle is provided at the outer end of the drum so that the hot gas can only be ejected from the through holes in contact with the coil 7 to be dried, ensuring that the hot gas acts on the surface of the coil 7 in a concentrated manner, thereby improving the drying efficiency and uniformity.

[0078] To optimize the cooling process, the exhaust port on the cooling box 3 is fixedly connected with a solenoid valve, which can accurately control the exhaust volume, optimize the cooling process, and improve the cooling efficiency.

[0079] The maintenance cost is reduced, and the use of renewable water-absorbing materials reduces the frequency of material replacement and reduces the maintenance cost. The design of the adsorption layer 13 also facilitates the filling and replacement of materials, making maintenance more convenient.

[0080] The stability of equipment operation. Through the optimization of equipment structure and materials, the equipment operation is more stable, the service life of the equipment is extended, and the failure rate is reduced.

[0081] Environmental protection and energy saving improve energy utilization, reduce energy consumption, reduce production costs and environmental burden, and comply with the national policy orientation of energy conservation and environmental protection.

[0082] When in use, the coil 7 to be dried is passed through the preheating drum 4, the drying drum 5 and the cooling drum 6 in sequence, and then high-temperature heat-conducting oil is introduced into the hollow parts of the preheating drum 4 and the drying drum 5. The high-temperature heat-conducting oil first heats the drying drum 5 close to the cooling drum 6, and then heats the other drying drum 5 and the preheating drum 4 close to the drying drum 5 in sequence, and finally the preheating drum 4 far away from the drying drum 5. As the flow temperature of the heat-conducting oil gradually decreases, the preheating drum 4 and the drying drum 5 heat the coil 7 to be dried to achieve step-by-step heating and drying. The dried coil 7 enters the cooling box 3, and low-temperature liquid or gas is introduced into the cooling drum 6 to cool the cooling drum 6, which in turn cools the coil 7. During the cooling process, the moisture in the gas in the cooling box 3 is condensed, and the condensed water is absorbed by the water-absorbing material in the adsorption layer 13. During this process, air at room temperature is introduced into the cooling drum 6 through an external air supply device, and moisture is condensed out of the air when it passes through the cooling drum 6, becoming dry gas; Then the gas flows into the drying drum 5 and the preheating drum 4 through the heat exchange tube 9. At this time, the gas absorbs the heat of the reflux gas in the reflux tube 1 10 and the reflux tube 2 14. The gas is ejected from the main through hole 8 through multiple ejection holes during the process of flowing through the drying drum 5 and the preheating drum 4. At this time, the gas flows out from the gaps between the corresponding preheating drum 4 and the drying drum 5 and the to-be-dried web 7. In this process, the gas is heated and takes away the moisture on the to-be-dried web 7. Afterwards, the high-temperature gas containing moisture flows back from the return pipe 10 and the return pipe 2 14 to the heat exchange box 11, exchanges heat with the heat exchange pipe 9 in the heat exchange box 11, and heats the dry gas in the heat exchange pipe 9; After a period of use, when the water-absorbing material in the adsorption layer 13 is fully absorbed with water, high-temperature heat-conducting oil is introduced into the cooling drum 6 through the electromagnetic three-way valve to heat the cooling drum 6, and the cooling drum 6 transfers heat to the molecular sieve in the adsorption layer 13 to heat and regenerate the water-absorbing material. During the regeneration process, the exhaust port at the top of the cooling box 3 is opened to remove moisture. The water-absorbing material can be a material that can be regenerated by heating, such as silica gel, activated carbon, molecular sieve, etc. In summary, this embodiment significantly improves the performance and efficiency of the drying equipment for composite coil production by optimizing the design of the adsorption layer 13, heat exchange tube 9, roller material and structure, and has broad application prospects.

[0083] The above is only a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the form disclosed herein and should not be regarded as excluding other embodiments. It can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not depart from the spirit and scope of the present invention, and should all be within the scope of protection of the claims attached to the present invention.

Claims

1. A drying device for composite coil production, characterized in that: The invention comprises a preheating box (1), a drying box (2) and a cooling box (3) which are arranged horizontally in sequence, wherein two preheating rollers (4), two drying rollers (5) and two cooling rollers (6) are rotatably connected in the preheating box (1), the drying box (2) and the cooling box (3), respectively, and the same coiled material (7) to be dried is arranged in the preheating box (1), the drying box (2) and the cooling box (3), and the coiled material (7) to be dried passes through the preheating roller (4), the drying roller (5) and the cooling roller (6) alternately in sequence from the upper end of the preheating roller (4) in a horizontal direction. The preheating drum (4), the drying drum (5) and the cooling drum (6) extend horizontally from the lower end thereof; the preheating drum (4), the drying drum (5) and the cooling drum (6) are all provided with a main through hole (8) along their axial direction; and the preheating drum (4), the drying drum (5) and the cooling drum (6) are all provided with a plurality of through holes along their radial direction; the plurality of through holes are all connected to their corresponding main through holes (8); the cooling drum (6) away from the drying drum (5) is connected to an external air supply device via a pipeline, and the other end of the cooling drum (6) is connected to an external air supply device via a transfer The ring and the pipeline are connected to the cooling drum (6) near the drying drum (5); the other end of the cooling drum (6) near the drying drum (5) is fixedly connected to the drying drum (5) near the cooling drum (6) by a heat exchange pipe (9) via an adapter ring; the remaining adjacent drying drums (5) and preheating drums (4) are connected to each other via adapter rings and pipelines; the preheating drum (4) away from the drying drum (5) is connected to the heat exchange box (11) via a return pipe 1 (10); the preheating drum (4), the drying drum (5) and the preheating drum (4) are connected to the heat exchange box (11) via a return pipe 1 (10); The drum (5) and the cooling drum (6) are both hollow structures, and the hollow parts of the adjacent preheating drum (4) and drying drum (5) are connected in sequence through slip rings (12) and pipelines and are connected to an external thermal oil heating system. The hollow parts of the two cooling drums (6) are also connected through slip rings (12) and pipelines and are connected to an external refrigeration system and a thermal oil heating system through a three-way valve. An adsorption layer (13) is fixedly connected to the outer end of the cooling drum (6), and the heat exchange tube (9) is located in the heat exchange box (11).

2. A drying device for composite coil production according to claim 1, characterized in that: The preheating box (1), the drying box (2) and the cooling box (3) are all provided with through grooves for the coiled material (7) to be dried to pass through at positions corresponding to the coiled material (7) to be dried, and the portion of the heat exchange tube (9) located in the heat exchange box (11) is a spiral structure.

3. The drying equipment for composite coil production according to claim 1, characterized in that: The bottom ends of the preheating box (1) and the drying box (2) are both connected to the heat exchange box (11) via a second return pipe (14); the heat exchange box (11) is a hollow structure, and an exhaust port is provided at the top end of the heat exchange box (11); and the top end of the cooling box (3) is also provided with an exhaust port.

4. The drying equipment for composite coil production according to claim 1, characterized in that: The two ends of the preheating roller (4), the drying roller (5) and the cooling roller (6) respectively penetrate the preheating box (1), the drying box (2) and the cooling box (3), and one end of the penetrated portion is fixedly connected to a pulley (15), and the outer diameters of the plurality of preheating rollers (4) and drying rollers (5) are equal.

5. A drying device for producing composite coils according to claim 4, characterized in that: Two adjacent pulleys (15) on the preheating drum (4) and the drying drum (5) are connected via a synchronous belt, one end of the drying drum (5) away from the synchronous belt is also fixedly connected to a pulley (15), and the outer end of the pulley (15) is connected to a motor 1 via a synchronous belt, and the motor 1 is fixedly connected to the top of the drying box (2).

6. A drying device for producing composite coils according to claim 4, characterized in that: The pulleys (15) on the two cooling rollers (6) are also connected via a synchronous belt, and one end of one of the cooling rollers (6) away from the synchronous belt is also fixedly connected to a pulley (15), and the outer end of the pulley (15) is connected to motor 2 via a synchronous belt, and motor 2 is fixedly connected to the top of the cooling box (3).

7. The drying equipment for composite coil production according to claim 1, characterized in that: The adsorption layer (13) is filled with a regenerable water-absorbing material, the outer diameter of the adsorption layer (13) is larger than the outer diameter of the preheating drum (4), and the adsorption layer (13) is provided with through holes corresponding one to one with the outer ends of the cooling drum (6).

8. The drying equipment for composite coil production according to claim 1, characterized in that: The portion of the heat exchange tube (9) located in the heat exchange box (11) is made of pure copper, the outer ends of the preheating box (1), the drying box (2) and the cooling box (3) are all covered with a heat insulation layer, and the preheating roller (4), the drying roller (5) and the cooling roller (6) are all made of a high thermal conductivity metal material.

9. A drying device for producing composite coils according to claim 1, characterized in that: The outer ends of the preheating drum (4), the drying drum (5) and the cooling drum (6) that are not in contact with the to-be-dried coil (7) are each provided with a baffle plate for blocking the gas from flowing out of the through hole so that the gas can only be ejected from the through hole in contact with the to-be-dried coil (7), and the exhaust port on the cooling box (3) is fixedly connected with a solenoid valve.

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