A drying equipment for composite coil production

Abstract

The present invention discloses a drying device for producing composite coils, which relates to the technical field of drying equipment. The device comprises a preheating box, a drying box and a cooling box which are arranged horizontally in sequence. A preheating drum, a drying drum and a cooling drum are respectively provided in the box bodies. The coils to be dried pass through the drums in sequence, and high-temperature heat-conducting oil is used 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 hollow part of the cooling drum to cool the coils, and condensed water is absorbed by the renewable water-absorbing material in the adsorption layer and can be regenerated by heating. The device 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. The transmission system adopts pulleys and synchronous belts, which are driven by a motor to realize synchronous rotation of the drums and ensure that the coils run 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 roll materials, which effectively solves the problem that the machine body needs to be opened for installation when the roll 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 of the machine body, 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 roll material to facilitate the loading of the roll material; when the clamping rod is engaged with 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 roll material, which facilitates the movement of the roll material 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. It 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 producing composite coils to solve the above-mentioned problems.

[0007] The objective of the present invention is achieved through the following technical solutions: A drying device for producing composite coils, comprising a preheating box, a drying box and a cooling box arranged horizontally in sequence, wherein the preheating box, the drying box and the cooling box are respectively rotatably connected with two preheating rollers, two drying rollers and two cooling rollers, and the preheating box, the drying box and the cooling box are provided with the same coil to be dried, 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 with their corresponding main through holes, and the cooling roller away from the drying roller is connected to the external air supply equipment through a pipeline. The heat exchanger is located in the heat exchange box and the heat exchanger is connected to the outer surface of the drying drum by the heat exchanger. The outer surface of the drying drum is fixed with a heat exchanger, and the heat exchanger is connected to the heat exchanger box by the heat exchanger. The heat exchanger is located in the heat exchange box and the heat exchanger is connected to the heat exchanger box by the heat exchanger. The heat exchanger is located in the heat exchange box and the heat exchanger is connected to the heat exchanger box by the heat exchanger. The heat exchanger is located in the heat exchange box and the heat exchanger is connected to the heat exchanger box by the heat exchanger. The heat exchanger is located in the heat exchange box and the heat exchanger is connected to the heat exchanger box by the heat exchanger. The heat exchanger is located in the heat exchange box and the heat exchanger is connected to the heat exchanger box by the heat exchanger. The heat exchanger is located in the heat exchange box and the heat exchanger is connected to the heat exchanger box by the heat exchanger. The heat exchanger is located in the heat exchange box and the heat exchanger is connected to the heat exchanger box by the heat exchanger. The heat exchanger is located in the heat exchange box and the heat exchanger is connected to the heat exchanger box by the heat exchanger. The heat exchanger is located in the heat exchange box and the heat exchanger is connected to the heat exchanger box by the heat exchanger. The heat exchanger is located in the heat exchanger

[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 efficiency; the transmission system adopts pulleys and synchronous belts, 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 is covered with a heat insulation 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, which can accurately control the exhaust volume and optimize the cooling process.

[0009] The preheating box, drying box and cooling box are all provided with through slots 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 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 adjacent two pulleys on the preheating drum and the drying drum are connected by a synchronous belt. 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 a 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 of the cooling drums is also fixedly connected to a pulley at one end away from the synchronous belt, 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 sides of the outer ends of the preheating drum, drying drum and cooling drum that are not in contact with the coil to be dried are all provided with baffles to prevent 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 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:

[0018] 1. High drying efficiency, energy saving and environmental protection. By setting up preheating drum and drying drum, high-temperature heat-conducting oil is used for step-by-step heating to achieve gradient heating of the dried coil, which improves the drying efficiency. The temperature of the heat-conducting oil gradually decreases during the flow process, which realizes the gradient utilization of heat, saves energy and reduces production costs.

[0019] 2. Gas recycling and 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, further improving the energy utilization rate, reducing energy consumption, and meeting the requirements of energy conservation and environmental protection.

[0020] 3. The water-absorbing material is renewable, reducing 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, reducing the cost of material replacement and extending the service life of the equipment.

[0021] 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. This ensures that the coil to be dried runs at a constant speed in the equipment, avoids tension changes, and improves 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 requirements.

[0022] 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, keeps the temperature inside the equipment stable, improves the heat preservation performance of the equipment and reduces energy consumption.

[0023] 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 acts on the surface of the coil, improving the drying efficiency and uniformity, and ensuring product quality.

[0024] 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 thermal 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

[0025] Figure 1 It is the overall structural diagram of the present invention;

[0026] Figure 2 It is an overall exploded view of the present invention;

[0027] Figure 3 The local explosion of the present invention Figure 1 ;

[0028] Figure 4 The local explosion of the present invention Figure 2 ;

[0029] Figure 5 The local explosion of the present invention Figure 3 ;

[0030] Figure 6 The local explosion of the present invention Figure 4 ;

[0031] Figure 7 It is a front view of the present invention;

[0032] Figure 8 For the present invention Figure 7 Middle AA section view;

[0033] Figure 9 For the present invention Figure 8 Middle BB cross-section;

[0034] Figure 10 For the present invention Figure 8 Middle CC section view;

[0035] Figure 11 For the present invention Figure 8 Middle DD section view;

[0036] Figure 12 For the present invention Figure 8 Enlarged view of point E in the middle;

[0037] Figure 13 For the present invention Figure 11 Enlarged view of point F in the middle;

[0038] Figure 14 This is the appearance structure diagram of the present invention.

[0039] Description of the numbers in the figure

[0040] 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. Return pipe 1; 11. Heat exchange box; 12. Slip ring; 13. Adsorption layer; 14. Return pipe 2; 15. Pulley. DETAILED DESCRIPTION

[0041] The technical solutions 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 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.

[0042] It is to be noted that the directions of "left", "right", "up", "down", "front", "back", "inside" and "outside" in the following schemes are all relative directions and are not listed here one by one.

[0043] Example 1

[0044] like Figures 1 to 14As shown, this embodiment provides a drying device for producing composite coils, including a preheating box 1, a drying box 2, and a cooling box 3 arranged horizontally in sequence. 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. 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 processing.

[0045] The coil 7 to be dried starts from the upper end of the preheating drum 4 in the horizontal direction, and 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 all connected to the corresponding main through holes 8.

[0046] The cooling drum 6 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. A heat exchange tube 9 is fixedly connected to the drying drum 5 through the adapter ring. The remaining adjacent drying drums 5 and preheating drums 4 are all connected through adapter rings and pipelines. The preheating drum 4 away from the drying drum 5 is connected to the heat exchange box 11 through a return pipe 10.

[0047] All preheating drums 4, drying drums 5 and cooling drums 6 are hollow structures. The hollow parts of adjacent preheating drums 4 and drying drums 5 are connected in sequence through slip rings 12 and pipelines, and are connected to the external thermal oil heating system for introducing high-temperature thermal oil. The hollow parts of the two cooling drums 6 are also connected to the pipeline through slip rings 12, and are connected to the external refrigeration system and thermal oil heating system through three-way valves, and can introduce low-temperature or high-temperature media as needed.

[0048] An adsorption layer 13 is fixedly connected to the outer end of the cooling drum 6 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.

[0049] On the preheating box 1, drying box 2 and cooling box 3, positions corresponding to the coils 7 to be dried are provided with through slots for the coils to pass through, which facilitates 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 for discharging hot and humid gas. The top of the cooling box 3 is also provided with an exhaust port.

[0050] Working process:

[0051] When using the device for drying, the coiled material 7 to be dried is first passed through the preheating drum 4, the drying drum 5 and the cooling drum 6 in sequence, so as to form a continuous transmission path in the device.

[0052] Next, 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 enters the drying drum 5 close to the cooling drum 6 to heat it; then it flows through the other 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-conducting oil flows, the temperature gradually decreases, so that the heating of the to-be-dried coil 7 by each drum tends to decrease step by step, forming a gradient heating effect.

[0053] At the same time, the external air supply equipment introduces room temperature gas into the cooling drum 6 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 out, 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.

[0054] In the drying drum 5 and the preheating drum 4, the gas passes through the main through-hole 8 and multiple through-holes, is ejected from the surface of the drum, and directly contacts the web 7 to be dried. In the process of contact with the web, the gas is heated and takes away the moisture on the surface of the web, thereby achieving the purpose of drying. The high-temperature gas containing moisture then flows 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 and enters the heat exchange box 11.

[0055] 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 heat, the hot and humid gas is discharged from the exhaust port at the top of the heat exchange box 11.

[0056] 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 and then cool 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.

[0057] 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-conducting 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, causing the water in the water-absorbing material to evaporate 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.

[0058] Efficient drying and energy saving: by setting up a preheating drum 4 and a drying drum 5, and adopting a step-by-step heating method of high-temperature heat-conducting oil, the coiled material 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, realizing the gradient utilization of heat and saving energy.

[0059] 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 energy utilization.

[0060] The water-absorbing material is regenerated. The adsorption layer 13 is filled with regenerable water-absorbing material, 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.

[0061] The structure is reasonable and maintenance is convenient. The preheating box 1, drying box 2 and cooling box 3 are all provided with through slots to facilitate the installation and replacement of the coiled material 7 to be dried. The design of the roller makes the coiled material take an "S"-shaped path in the equipment, which increases the contact area of ​​drying and cooling and enhances the effect.

[0062] The heat exchange efficiency is high. The portion 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.

[0063] 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 water-absorbing materials, it reduces the generation of waste and meets environmental protection requirements.

[0064] The equipment has a high degree of automation. It can automatically switch the working mode of the cooling drum 6 according to needs. Through the three-way valve and the external control system, it can realize automatic switching between the heat transfer oil and the refrigeration medium. It is easy to operate and reduces labor costs.

[0065] 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.

[0066] Example 2

[0067] 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.

[0068] Both ends of the preheating drum 4, drying drum 5 and cooling drum 6 pass through the preheating box 1, drying box 2 and cooling box 3 respectively, wherein one end of the passing portion is fixedly connected to a pulley 15, and the outer diameters of the multiple preheating drums 4 and drying drums 5 are equal.

[0069] The adjacent two pulleys 15 on the preheating drum 4 and the drying drum 5 are connected by a synchronous belt. One end of one drying drum 5 away from the synchronous belt is also fixedly connected to a pulley 15. The outer end of the pulley 15 is connected to motor 1 through a synchronous belt. Motor 1 is fixedly connected to the top of the drying box 2.

[0070] The pulleys 15 on the two cooling drums 6 are also connected by a synchronous belt. One end of the cooling drum 6 is away from the synchronous belt and is also fixedly connected to the pulley 15. The outer end of the pulley 15 is connected to the motor 2 through the synchronous belt. The motor 2 is fixedly connected to the top of the cooling box 3.

[0071] Working process:

[0072] When the equipment is running, motor 1 drives the drying drum 5, which drives the preheating drum 4 and the drying drum 5 to rotate synchronously through the pulley 15 and the synchronous belt fixed to it. 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 coiled material 7 to be dried runs at a constant speed in the preheating box 1 and the drying box 2.

[0073] Similarly, motor 2 drives a cooling drum 6, which 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.

[0074] 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 within the equipment, thereby improving the efficiency and quality of drying and cooling.

[0075] Synchronous transmission ensures stability. The preheating drum 4 and the drying drum 5 are connected by a pulley 15 and a synchronous belt, and are driven by a motor 1 to achieve 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.

[0076] 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 each drum are consistent, avoids the sliding or wrinkling of the coiled material 7 to be dried during the transmission process, and ensures product quality.

[0077] Independent drive and flexible control: the cooling drum 6 is driven independently by motor 2, 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.

[0078] The structure is compact and space-saving. Motor 1 and motor 2 are fixed on the top of the drying box 2 and the cooling box 3 respectively, which utilizes the vertical space of the equipment, reduces the floor space of the equipment, and facilitates the installation and layout of the equipment.

[0079] Easy maintenance and reduced costs. The transmission method of the pulley 15 and the synchronous belt is simple in structure and easy to maintain. When the synchronous belt or the pulley 15 needs to be replaced, the operation is simple and quick, which reduces maintenance costs.

[0080] 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.

[0081] Reduce noise and improve the environment. The synchronous belt drive mode runs smoothly and has low noise, which reduces noise pollution during equipment operation and improves the production environment.

[0082] Improve safety, the transmission system has a simple structure, reduces mechanical transmission components, reduces equipment failure rate, and improves the safety of equipment operation.

[0083] Through the above optimization, this embodiment further improves the transmission efficiency and operation stability of the equipment on the basis of Example 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.

[0084] Example 3

[0085] like Figures 1 to 14 As shown, based on Example 1 and Example 2, this embodiment further optimizes the design of the drying equipment for composite coil production to improve the drying efficiency and energy utilization rate of the equipment.

[0086] First, the adsorption layer 13 is filled with renewable water-absorbing materials, such as silica gel, activated carbon or molecular sieve. 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 that correspond one-to-one 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.

[0087] Secondly, the part of the heat exchange tube 9 located in the heat exchange box 11 is made of pure copper, which 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 all covered with an 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.

[0088] 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 web 7 to be dried, so as to prevent 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 web 7 to be dried. This design ensures that the hot gas can act concentratedly on the surface of the web, 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.

[0089] Working process:

[0090] 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.

[0091] 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, the heat conduction efficiency is high and the heat can be quickly transferred to the coiled material 7 to be dried.

[0092] 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, the cooling drum 6 can be heated by introducing high-temperature heat-conducting 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.

[0093] 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, drying box 2 and cooling box 3 effectively reduces heat loss and maintains the temperature inside the equipment stable.

[0094] 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 is 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 is concentrated on the surface of the coil and improving the drying efficiency.

[0095] The optimized design of the adsorption layer 13 is that the adsorption layer 13 is filled with renewable water-absorbing material, which enhances the water absorption capacity and extends 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.

[0096] To improve the thermal conductivity, the heat exchange tube 9 is made of pure copper, and the preheating drum 4, drying drum 5 and 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.

[0097] To improve energy utilization, 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 of the equipment.

[0098] 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 concentratedly on the surface of the coil, thereby improving the drying efficiency and uniformity.

[0099] 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.

[0100] The reduction of maintenance costs and the use of renewable water-absorbing materials reduce the frequency of material replacement and reduce maintenance costs. The design of the adsorption layer 13 also facilitates the filling and replacement of materials, making maintenance more convenient.

[0101] 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.

[0102] 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.

[0103] When in use, the coil 7 to be dried passes 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 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, thereby achieving step-by-step heating and drying.

[0104] 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 absorbed by the water-absorbing material in the adsorption layer 13.

[0105] During this process, room temperature gas is introduced into the cooling drum 6 through an external gas supply device. When the gas passes through the cooling drum 6, moisture is condensed out and becomes dry gas.

[0106] The gas then 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 return gas in the return tube 10 and the return tube 2 14. In the process of flowing through the drying drum 5 and the preheating drum 4, the gas is ejected from the main through hole 8 through multiple nozzles. At this time, the gas flows out from the gaps between the corresponding preheating drum 4 and the drying drum 5 and the web 7 to be dried. In this process, the gas is heated and removes moisture from the web 7 to be dried.

[0107] The high-temperature gas containing moisture then flows back into the heat exchange box 11 from the return pipe 10 and the return pipe 2 14, where it exchanges heat with the heat exchange pipe 9, heating the dry gas in the heat exchange pipe 9.

[0108] 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. 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, or molecular sieve.

[0109] 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.

[0110] The above description 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. Instead, 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 technology or knowledge in related fields. 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 be within the scope of protection of the claims attached to the present invention.

Claims

1. A drying device for producing composite coils, 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 a same coiled material (7) to be dried is provided 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) are extended horizontally from the lower end thereof, the preheating drum (4), the drying drum (5) and the cooling drum (6) are provided with main through holes (8) along their axial directions, and the preheating drum (4), the drying drum (5) and the cooling drum (6) are provided with multiple through holes along their radial directions, and the multiple through holes are connected to the corresponding main through holes (8), the cooling drum (6) away from the drying drum (5) is connected to the external air supply equipment through a pipeline, and the other end of the cooling drum (6) is connected to the external air supply equipment through a transfer The ring and the pipe 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); the remaining adjacent drying drums (5) and preheating drums (4) are connected by adapter rings and pipes; the preheating drum (4) away from the drying drum (5) is connected to the heat exchange box (11) through a return pipe (10); the preheating drum (4), the drying drum (5) and the preheating drum (4) are connected to the heat exchange box (11) through a return pipe (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 pipes and are connected to the external thermal oil heating system. The hollow parts of the two cooling drums (6) are also connected through slip rings (12) and pipes and are connected to the external refrigeration system and thermal oil heating system through three-way valves. The outer end of the cooling drum (6) is fixedly connected to an adsorption layer (13), and the heat exchange tube (9) is located in the heat exchange box (11).

2. The drying equipment for producing composite coils 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 slots for the coiled material (7) to be dried to pass through at positions corresponding to the coiled material (7) to be dried. The portion of the heat exchange tube (9) located in the heat exchange box (11) is a spiral structure.

3. The drying equipment for producing composite coils 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) through the return pipe 2 (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). The top end of the cooling box (3) is also provided with an exhaust port.

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

5. The drying equipment 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. The drying equipment 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 cooling roller (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 producing composite coils 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). The adsorption layer (13) is provided with through holes corresponding to the outer ends of the cooling drum (6).

8. The drying equipment 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 coiled material to be dried (7) are each provided with a baffle 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 coiled material to be dried (7). A solenoid valve is fixedly connected to the exhaust port on the cooling box (3).

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