Efficient energy-saving through-flow type dye drying device
By using a sliding drying cart, finned heat exchanger, and temperature and humidity sensors in the dye drying device, energy-saving and material-preserving high-efficiency dye drying is achieved, solving the problems of high energy consumption and material deterioration, and improving drying efficiency and uniformity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU ANTHRACITE TECH CO LTD
- Filing Date
- 2025-08-20
- Publication Date
- 2026-07-07
AI Technical Summary
Existing dye drying equipment suffers from high energy consumption and low thermal efficiency. Furthermore, high-temperature environments can easily lead to material deterioration, especially color changes or intensity reduction in heat-sensitive materials.
The system employs a sliding, movable drying cart, a finned heat exchanger, and temperature and humidity sensors in conjunction with a control system. Through intermittent steam and airflow control, it achieves energy-saving drying and protects the materials from deterioration at lower temperatures.
It achieves a highly efficient and energy-saving drying process, protects heat-sensitive materials, improves drying efficiency and material uniformity, reduces steam loss, and lowers the risk of equipment damage.
Smart Images
Figure CN224470620U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of dye drying equipment, and more specifically, relates to a high-efficiency and energy-saving through-flow dye drying device. Background Technology
[0002] Dye drying is a crucial step in the dye production process, and its energy consumption has always been a major concern in the industry. Currently, the main industrial drying technology is horizontal flow drying, where hot air passes horizontally across the surface of the material, relying primarily on surface heat conduction and convection heat transfer. This not only results in high energy consumption but also requires the material to be dried gradually from the outside in, which can easily lead to low drying efficiency and incomplete drying.
[0003] While existing through-flow drying devices can improve airflow distribution, they mostly employ continuous high-temperature air intake drying methods, which still suffer from high energy consumption and low thermal efficiency. On the one hand, there is still room for improvement in the thermal energy utilization rate of the equipment; on the other hand, some dyes are prone to color changes or intensity decreases under continuous high-temperature environments, and continuous high temperatures can easily lead to denaturation of heat-sensitive materials. Therefore, an energy-efficient drying device that can protect materials from deterioration is needed. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a high-efficiency and energy-saving through-flow dye drying device, which can meet the requirements of energy saving and high efficiency of drying device and protect the material from deterioration.
[0005] This utility model discloses a high-efficiency and energy-saving through-flow dye drying device, comprising a drying chamber, at least one drying cart, an intake fan, an exhaust fan, finned heat exchangers, and a steam delivery pipe. The drying cart, which can be slidably moved in and out, is installed inside the drying chamber. An air duct is fixedly installed on one side of the drying chamber. The intake fan and exhaust fan are respectively fixedly installed outside the drying chamber, and the intake fan, air duct, drying chamber, and exhaust fan form an airflow path. The number of finned heat exchangers is equal to the number of drying carts, and the finned heat exchangers are fixedly installed one-to-one on the side of the drying cart near the air duct. The steam delivery pipe is fixedly connected to the side of the drying chamber near the air duct. At one end, a steam conveying pipe connects the drying chamber to an external steam furnace. The steam conveying pipe is equipped with a solenoid valve, which is used to switch the steam conveying pipe to transmit steam to the drying chamber for drying the material. Insulation layers are fixedly installed on both sides of the drying chamber to reduce heat loss and improve drying efficiency. The air intake fan, exhaust fan, finned heat exchanger, and steam conveying pipe are all electrically connected to the external control system, and their opening and closing and fan speed are adjusted by the control system. Temperature and humidity sensors are also installed in the drying chamber. The temperature and humidity sensors are connected to the control system and can detect changes in temperature and humidity in the drying chamber and provide feedback to the control system.
[0006] In use, the drying cart containing the dye filter cake is pushed into the drying chamber. The air intake fan and steam delivery pipe are turned on to supply steam and cold air into the drying chamber. The airflow passes through the finned heat exchanger and the drying cart in sequence to dry the dye filter cake on the drying cart. When a large amount of water in the dye filter cake evaporates into water vapor, and the temperature and humidity inside the drying chamber reach the required values, feedback is sent to the control system, which shuts off the air intake fan and steam delivery pipe and turns on the exhaust fan to expel the hot and humid air. After the temperature and humidity inside the drying chamber drop, the air intake fan and steam delivery pipe are turned on again to dry the dye filter cake on the drying cart. This process is repeated until the dye filter cake is completely dried. Compared with traditional continuous air intake devices, the drying device described in this application provides both air intake and exhaust, saving steam. The drying chamber does not maintain a high temperature at all times, and can dry materials at a lower temperature, protecting heat-sensitive materials that are easily perishable at high temperatures. Furthermore, the drying process does not actively exhaust air, avoiding a large loss of steam, resulting in high efficiency in drying dye filter cakes.
[0007] As a further improvement of this utility model, a wheel groove is opened at the bottom of the drying chamber. The size of the wheel groove can match the wheels of the drying cart to prevent the drying cart from colliding with the drying chamber or finned heat exchanger when sliding, thus preventing damage to the device. This ensures that the wheels of the drying cart will not slip during the drying process and improves the stability of the drying cart in the drying chamber.
[0008] As a further improvement of this utility model, a drain outlet is provided at the lower end of one side of the drying chamber. The drain outlet is controlled by a solenoid valve to discharge the condensate generated by the finned heat exchanger, thereby preventing the condensate from accumulating in the heat exchanger and improving the heat exchange efficiency.
[0009] As a further improvement of this utility model, a guide plate is fixedly installed between the finned heat exchanger and the drying cart on the side of the drying chamber near the air duct output end. Several air guide windows are opened on the guide plate to guide the airflow heated by the finned heat exchanger and improve the drying efficiency.
[0010] As a further improvement of this utility model, several air guide vanes are rotatably installed on the air guide window at the lower end of the air guide plate. In the initial state, the air guide vanes are close to the air guide plate to prevent interference with the drying cart and damage to the equipment. In the working state, the air guide vanes can form an inclined surface at the upper end of the air guide window to guide the airflow upward, guiding the airflow that has been fully heated by the finned heat exchanger and flows out from the lower section of the finned heat exchanger to the upper section of the drying cart, so that the material on the drying cart is heated evenly and the drying efficiency is improved.
[0011] As a further improvement of this utility model, the air guide plate is a push-pull double plate structure. The air guide plate can be overlapped and retracted to expose the finned heat exchanger, which facilitates the maintenance and replacement of the finned heat exchanger on one side of the air guide plate.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: Compared with the drying device that uses a continuous high-temperature air intake method, the drying device described in this application provides exhaust air, saving steam; the drying chamber is not easy to maintain a high temperature state at all times, and can dry materials at a lower temperature, protecting heat-sensitive materials that are easily deteriorated at high temperatures; and the drying process does not actively exhaust air to avoid a large loss of steam, resulting in high drying efficiency of dye filter cake.
[0013] The bottom of the drying chamber has wheel grooves to prevent the wheels from slipping during the drying process, improving the stability of the drying cart inside the chamber. A drain outlet is located at the lower side of the drying chamber to prevent condensate from accumulating in the finned heat exchanger, thus improving heat exchange efficiency. An air guide plate is installed to improve drying efficiency. Air guide vanes are rotatably installed on the air guide window to guide the fully heated airflow upward, ensuring uniform heating of the material on the drying cart and improving drying efficiency. The air guide plate has a push-pull double-plate structure, facilitating maintenance and replacement of the finned heat exchanger on one side of the air guide plate. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the structure of the present invention for removing the front panel of the drying chamber;
[0016] Figure 3 This is a schematic diagram of the orthographic section of the present invention;
[0017] Figure 4 This is a schematic diagram of the drying cart structure of this utility model;
[0018] Figure 5 This is a schematic diagram of the air guide plate structure of this utility model;
[0019] Figure 6 For the present utility model Figure 5 Enlarged structural diagram of region A in the middle;
[0020] Figure 7 This is a front view of the air guide plate and a schematic diagram showing the sliding adjustment of the air guide vanes of this utility model;
[0021] Figure 8 This is a schematic diagram of the push-pull air guide plate, finned heat exchanger, and drying chamber structure of this utility model.
[0022] Explanation of the labels in the diagram:
[0023] Drying chamber 1; air duct 11; wheel groove 12; drain outlet 13; drying cart 2; drying tray 21; air guide plate 3; air guide window 31; air guide vane 32; adjusting column 33; intake fan 4; exhaust fan 5; finned heat exchanger 6; steam conveying pipe 7; insulation layer 8; temperature and humidity sensor 9. Detailed Implementation
[0024] Specific Implementation Example 1: Please refer to... Figures 1-6 This utility model relates to a high-efficiency and energy-saving through-flow dye drying device, including a drying chamber 1, a drying cart 2, an inlet fan 4, an exhaust fan 5, a finned heat exchanger 6, and a steam conveying pipe 7. The drying chamber 1 has an openable and closable inlet and outlet on its front. Three drying carts 2 are arranged in parallel inside the drying chamber 1 and can slide in and out through the inlet and outlet on their front. Drying trays 21 for arranging dye filter cakes are installed inside the drying carts 2. An air duct 11 is fixedly installed on one side inside the drying chamber 1. The inlet fan 4 and the exhaust fan 5 are respectively fixedly installed outside the drying chamber 1, and the inlet fan 4, the air duct 11, the drying chamber 1, and the exhaust fan 5 form an airflow passage. The three finned heat exchangers 6 are fixedly installed one-to-one on the side of the drying cart 2 near the air duct 11. The outlet section of the air duct 11 runs along the side wall of the drying chamber 1. The drying chamber is arranged longitudinally, with its air outlet located on the air inlet side of the finned heat exchanger 6. The steam delivery pipe 7 is fixedly connected to the upper end of the side of the drying chamber 1 near the air duct 11. The steam delivery pipe 7 connects the drying chamber 1 to the external steam furnace. The steam delivery pipe 7 is equipped with a solenoid valve, which is used to switch the steam delivery pipe 7 to transmit steam to the drying chamber 1 for drying the material. The drying chamber 1 is fixedly installed with insulation layers 8 on both sides to reduce heat loss and improve drying efficiency. The air inlet fan 4, exhaust fan 5, finned heat exchanger 6 and steam delivery pipe 7 are all connected to the external control system, and their start-up or shutdown is controlled by the control system. The wiring method and electrical signal control means of the external control system and its electrical connection with each component all adopt existing electronic communication technology.
[0025] In a further embodiment, such as Figure 2 As shown, a guide plate 3 is fixedly installed on one side of the output end of the air duct 11 in the drying chamber 1. The guide plate 3 is installed between the first finned heat exchanger 6 and the drying cart 2. Several air guide windows 31 are opened on the guide plate 3 to guide the airflow heated by the finned heat exchanger 6.
[0026] In a further embodiment, such as Figures 5-7As shown, the lower half of the air guide plate 3 is connected to several air guide vanes 32 and adjusting columns 33. The number of air guide vanes 32 corresponds one-to-one with the number of air guide windows 31, and the number of adjusting columns 33 is consistent with the number of rows in the lower half of the air guide plate 3. The air guide vanes 32 in the same row are all fixedly connected to the same generatrix on an adjusting column 33. Each adjusting column 33 is slidably connected to the upper end of the same row of air guide windows 31 of the air guide plate 3 by side insertion and can rotate relative to the air guide plate 3, thereby driving the air guide vanes 32 to slide or rotate relative to the air guide plate 3. The head of the adjusting column 33 is provided with a locking tongue, and the side of the air guide plate 3 has two locking holes. Sliding the adjusting column 33 and inserting the locking tongue into different locking holes can fix the air guide. The rotation angle of the guide vane 32: In the initial state, the guide vane 32 is close to the guide plate 3. In the working state, the guide vane 32 forms an inclined surface at the upper end of the guide window 31 to guide the airflow upward. Since the cold air from the intake fan 4 is heated from top to bottom through the finned heat exchanger 6, the air temperature flowing out from the upper end of the finned heat exchanger 6 is lower than that flowing out from the lower end. As a result, the drying temperature of the dye filter cake at the upper end of the drying cart 2 is weaker than that at the lower end. The guide vane 32 guides the airflow that has been fully heated by the finned heat exchanger 6 and flows out from the lower section of the finned heat exchanger 6 to the upper section of the drying cart 2, so that the material on the drying cart 2 is heated evenly and the drying efficiency is improved.
[0027] In a further embodiment, such as Figure 2 As shown, a wheel groove 12 is opened at the bottom of the drying chamber 1. The size of the wheel groove 12 can match the wheel of the drying cart 2 to prevent the drying cart 2 from colliding with the drying chamber 1 or the finned heat exchanger 6 when it slides, thus preventing damage to the device. This ensures that the wheel of the drying cart 2 will not slip during the drying process and improves the stability of the drying cart 2 in the drying chamber 1.
[0028] In a further embodiment, such as Figure 3 As shown, a drain outlet 13 is provided at the lower end of one side of the drying chamber 1, which is connected to the outside of the drying chamber 1. The drain outlet 13 is controlled by a solenoid valve to discharge the condensate generated by the finned heat exchanger 6.
[0029] In a further embodiment, such as Figure 3 As shown, a temperature and humidity sensor 9 is installed in the drying chamber 1. The temperature and humidity sensor 9 is connected to the control system. The temperature and humidity sensor 9 can detect the temperature and humidity changes in the drying chamber 1 and feed back to the control system to complete the drying process. The temperature and humidity sensor 9 and its signal connection and feedback methods with the control system all adopt existing electronic communication technology.
[0030] In operation, the dye filter cake is loaded into the drying cart 2 using the drying tray 21. The drying cart 2 is then pushed into the drying chamber 1 and sealed. The steam delivery pipe 7 is heated by the finned heat exchanger 6 via a solenoid valve. Air blown in by the intake fan 4 passes through the air duct 11, sequentially through the finned heat exchanger 6 and the drying cart 2. The air guide vanes 32 move with the sliding and rotation of the adjusting column 33, ultimately forming an inclined surface relative to the air guide plate 3, guiding the airflow from the lower end of the finned heat exchanger 6 upwards to uniformly heat the dye filter cake. At this time, a large amount of moisture in the dye filter cake evaporates into water vapor, and the humidity of the hot air in the drying chamber 1 increases. When the temperature and humidity sensor 9 detects that the temperature has risen to the set value and the air humidity has reached the saturation value, the moisture in the dye filter cake stops evaporating. At this point, the steam transmission mechanism 7 is stopped from supplying steam by closing the solenoid valve, the intake fan 4 is shut off, and the exhaust fan 5 is opened to discharge the hot air with high temperature and humidity, causing the temperature inside the drying chamber 1 to drop. When the temperature inside the drying chamber 1 drops to the initial drying temperature, the exhaust fan 5 is shut off, the intake fan 4 is opened to supply air again, and the solenoid valve is opened to supply steam through the steam transmission pipe 7 for reheating until the filter cake is completely dried. The steps of shutting off the intake fan 4 and the steam transmission pipe 7 and opening the exhaust fan 5 are repeated. After the temperature and humidity inside the drying chamber 1 return to the initial state, the exhaust fan 5 is shut off, and the condensate generated by the finned heat exchanger 6 is discharged from the drain outlet 13. The dried dye filter cake is then taken out from the drying tray 21 by pushing out the drying cart 2.
[0031] Specific Implementation Example 2: Please refer to Figure 7 The difference between this embodiment and Embodiment 1 is that:
[0032] The air guide plate 3 is a push-pull double plate structure. A pair of air guide plates 3 are slidably installed in the drying chamber 1 on the side near the air duct 11. When unfolded, the two air guide plates 3 slide horizontally to fully unfold, covering the side area of the drying chamber 1 and forming a complete air duct guiding structure, so that the air heated by the finned heat exchanger 6 enters the drying cart 2 area evenly through the air guide window 31. At this time, the finned heat exchanger 6 is in the closed area. When retracted, slide either side of the air guide plate 3 so that the two air guide plates 3 overlap on the inside or outside of the drying chamber 1. The specific overlapping side depends on the other side being fully open at this time, forming a maintenance channel connecting the installation area of the finned heat exchanger 6 and the installation area of the drying cart 2, directly exposing the finned heat exchanger 6, which is convenient for maintenance personnel to enter the maintenance channel from the drying chamber to perform maintenance and replacement on the exposed side of the finned heat exchanger 6.
Claims
1. A high-efficiency and energy-saving through-flow dye drying device, characterized in that: The equipment includes a drying chamber (1), at least one drying cart (2), an intake fan (4), an exhaust fan (5), a finned heat exchanger (6), and a steam delivery pipe (7). The drying chamber (1) is equipped with a slidable drying cart (2). An air duct (11) is fixedly installed on one side inside the drying chamber (1). The intake fan (4) and the exhaust fan (5) are fixedly installed on the outside of the drying chamber (1), and the intake fan (4), the air duct (11), the drying chamber (1), and the exhaust fan (5) form an airflow passage. The number of finned heat exchangers (6) is equal to that of the drying cart (2), and the finned heat exchangers (6) are fixedly installed on the side of the drying cart (2) near the air duct (11) in a one-to-one correspondence. The steam delivery pipe (7) is fixedly connected to the upper end of the side of the drying chamber (1) near the air duct (11).
2. The high-efficiency and energy-saving through-flow dye drying device according to claim 1, characterized in that: A temperature and humidity sensor (9) is installed inside the drying chamber (1).
3. The high-efficiency and energy-saving through-flow dye drying device according to claim 1, characterized in that: The bottom of the drying chamber (1) has a wheel groove (12), the size of which can match the wheel of the drying cart (2).
4. The high-efficiency and energy-saving through-flow dye drying device according to claim 1, characterized in that: A drain outlet (13) is provided at the lower end of one side of the drying chamber (1), and the drain outlet (13) is controlled by a solenoid valve.
5. The high-efficiency and energy-saving through-flow dye drying device according to claim 1, characterized in that: The drying chamber (1) has insulation layers (8) fixedly installed on both sides.
6. The high-efficiency and energy-saving through-flow dye drying device according to claim 1, characterized in that: A guide plate (3) is fixedly installed between the finned heat exchanger (6) on the side of the drying chamber (1) near the output end of the air duct (11) and the drying cart (2). Several air guide windows (31) are opened on the guide plate (3).
7. The high-efficiency and energy-saving through-flow dye drying device according to claim 6, characterized in that: Several air guide vanes (32) are rotatably installed on the air guide window (31) at the lower end of the air guide plate (3).
8. The high-efficiency and energy-saving through-flow dye drying device according to claim 6, characterized in that: The air guide plate (3) is a push-pull double plate structure. The air guide plate (3) can be overlapped and retracted to expose the finned heat exchanger (6).