Down feather drying heat energy recycling device

Abstract

The utility model relates to a dryer, and discloses a down feather drying heat energy recycling device which comprises a first drying box used for drying down feather, the first drying box is communicated with a second drying box through a first conveying pipe, an air heater is installed on the top of the second drying box, and an air outlet of the air heater faces the bottom of the second drying box. A preheating box is installed around the first drying box, the inner wall of the preheating box is the inner wall of the first drying box, a heat conduction box is installed around the second drying box, the inner wall of the heat conduction box is the inner wall of the second drying box, the heat conduction box communicates with the preheating box through a first pipeline, a first circulating pump is installed on the first pipeline, and the heat conduction box communicates with the preheating box through a second pipeline. And a second circulating pump is mounted on the second pipeline. According to the device, heat energy of the heat conduction box around the second drying box is conveyed to the preheating box around the first drying box through the first pipeline, the second pipeline and the circulating pump, efficient heat energy recycling is achieved, energy consumption is greatly reduced, and the energy utilization rate is increased.

Description

Technical Field

[0001] This utility model relates to a dryer, and more particularly to a device for recovering and recycling heat energy during down drying. Background Technology

[0002] In the down processing industry, down drying is a crucial step, and its drying effect and energy consumption level directly affect production efficiency and cost. Traditional down dryers have revealed many problems in practical applications. Taking the existing technology represented by patent CN221685038U as an example, it has obvious deficiencies in terms of heat energy utilization and optimization of drying effect.

[0003] From the perspective of heat energy utilization, traditional down dryers mostly use simple heating methods, and the heat is often directly released after a single use, lacking an effective heat energy recovery and recycling mechanism. This results in a large amount of heat energy being wasted, which not only increases energy consumption and production costs but also contradicts the current environmental protection concept of energy conservation and emission reduction. For example, during the operation of the dryer, the high-temperature exhaust gas generated is directly discharged, and the large amount of heat energy contained in it is not effectively utilized, making it necessary to consume more energy to dry the same weight of down.

[0004] Traditional equipment also has shortcomings in drying performance. Due to the large volume, fluffy texture, and tendency to clump down, the internal structure of traditional dryers is relatively simple, making it difficult to achieve uniform heating of the down. During the drying process, the down is prone to localized overheating or insufficient drying, severely affecting its quality. For example, the equipment shown in patent CN221685038U may have defects in down tumbling and hot air distribution, failing to ensure that the down is in full contact with the hot air throughout the drying process, resulting in inconsistent drying quality.

[0005] To address the problems of traditional down dryers and meet the industry's demand for efficient, energy-saving, and high-quality drying, it is imperative to develop a new type of down drying heat recovery and recycling device. Utility Model Content

[0006] This invention addresses the shortcomings of existing technologies by providing a down drying heat energy recovery and recycling device.

[0007] To solve the above-mentioned technical problems, the present invention provides a solution through the following technical method:

[0008] A down drying heat energy recovery and recycling device includes a first drying box for drying down, a second drying box connected to the first drying box via a first conveying pipe, a hot air blower installed on the top of the second drying box, and the air outlet of the hot air blower facing the bottom of the second drying box.

[0009] The first drying oven is surrounded by a preheating box, the inner wall of which is the inner wall of the first drying oven. The second drying oven is surrounded by a heat-conducting box, the inner wall of which is the inner wall of the second drying oven. The heat-conducting box is connected to the preheating box through a first pipe, on which a first circulation pump is installed. The heat-conducting box is connected to the preheating oven through a second pipe, on which a second circulation pump is installed.

[0010] Preferably, both the preheating box and the heat conduction box are annular boxes, and the inner walls of the preheating box and the heat conduction box are heat conduction plates made of aluminum alloy.

[0011] Preferably, both the preheating chamber and the heat transfer chamber are filled with heat transfer oil, and both are equipped with temperature sensors.

[0012] Preferably, the second drying chamber is equipped with a compartment for drying down feathers, with a heat-conducting box surrounding the bottom of the compartment. A turntable and a motor are installed at the bottom of the second drying chamber, with the motor connected to and driving the turntable to rotate. The turntable is the bottom of the compartment.

[0013] Preferably, a hollow rotating shaft is fixed in the middle of the turntable, a first bevel gear is fixed on the outer wall of the rotating shaft, and a second bevel gear is fixed on the output shaft of the motor. The second bevel gear meshes with the first bevel gear and drives the rotating shaft to rotate.

[0014] Preferably, the upper end of the turntable has at least three guide strips evenly distributed, with a recessed area formed between two adjacent guide strips. A hot air gun is connected to the bottom port of the rotating shaft, and the top of the rotating shaft extends out of the bottom of the recessed area to form a nozzle. The nozzle has a number of spray holes evenly distributed and horizontally facing the recessed area.

[0015] Preferably, both the preheating box and the heat transfer box are provided with two oppositely arranged notches, one of which is equipped with a first blower, and the other is equipped with a first conveying pipe.

[0016] Preferably, a second blower with its air vent facing downwards is installed on the top of the first drying chamber.

[0017] Preferably, the equipment also includes a drying box, the outlet of which is connected to the inlet of the first drying box. A third blower is installed at the top of the drying box, and a fourth blower and a second conveying pipe are arranged opposite each other on both sides of the bottom of the drying box. The drying box is connected to the first drying box through the second conveying pipe.

[0018] This utility model, by adopting the above technical solution, has significant technical effects:

[0019] The thermal energy interaction system between the first and second drying ovens achieves efficient thermal energy circulation by setting up preheating boxes and heat conduction boxes around the two drying ovens respectively, and by using the first and second pipes in conjunction with the first and second circulation pumps.

[0020] The preheating chamber and heat transfer chamber adopt a ring-shaped structure with an inner wall made of aluminum alloy heat-conducting plate with excellent thermal conductivity, and filled with heat-conducting oil. This design greatly improves the heat conduction and storage capacity. Temperature sensors monitor the temperature inside the chamber in real time to ensure that the heat energy remains stable during the circulation process, avoiding heat waste and loss, thereby significantly improving energy utilization and reducing energy costs.

[0021] Furthermore, the coordinated operation of each blower and the connection between the air-drying box and the first drying box in the drying process not only optimizes the drying process but, more importantly, promotes the circulation of heat energy throughout the system. During this process, heat energy is transported from the heat transfer box to the preheating box via pipes to preheat the first drying box, achieving cascade utilization of heat energy and further enhancing the effect of heat energy recovery and circulation, thus realizing efficient and energy-saving drying of down feathers. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model.

[0023] Figure 2 This is a schematic diagram of the second drying chamber.

[0024] Figure 3 yes Figure 2 A magnified view of part A in the image.

[0025] Figure 4 This is a structural diagram of the notch area.

[0026] Figure 5 This is a schematic diagram of the turntable.

[0027] The names of the body parts referred to by the numbers in the above attached diagrams are as follows:

[0028] 10—First Drying Box

[0029] 11—First conveying pipe

[0030] 12—Second drying chamber, 121—Compartment, 122—Turntable, 123—Motor, 124—Shaft, 125—Hot air gun, 126—Nozzle, 127—First bevel gear, 128—Second bevel gear, 1220—Recessed area, 1221—Guide strip, 1261—Spray hole

[0031] 13—Hot Air Blower

[0032] 14—Preheating Box

[0033] 15—Heat Conduction Box

[0034] 16—First Pipeline

[0035] 17—First Circulation Pump

[0036] 18—Second Pipeline

[0037] 19—Second Circulation Pump

[0038] 20—First Blower

[0039] 21—Second Blower

[0040] 22—Drying Box

[0041] 23—Third Blower

[0042] 24—Fourth Blower

[0043] 25—Second feed pipe

[0044] 100—Gap section. Detailed Implementation

[0045] The following is in conjunction with the appendix Figure 1-5 The present invention will be further described in detail with reference to the embodiments.

[0046] Example 1

[0047] The down drying heat energy recovery and recycling device includes a first drying box 10 for drying down, a second drying box 12 connected to the first drying box 10 through a first conveying pipe 11, a hot air blower 13 installed on the top of the second drying box 12, the hot air blower 13 can provide a heat source for the down in the second drying box 12, and the air outlet of the hot air blower 13 faces the bottom of the second drying box 12.

[0048] A preheating box 14 is installed around the first drying oven 10. The inner wall of the preheating box 14 is the same as that of the first drying oven 10. Through holes are provided around the lower end of the first drying oven 10, and the preheating box 14 covers these through holes and is bolted to the first drying oven 10. A heat-conducting box 15 is installed around the second drying oven 12. The inner wall of the heat-conducting box 15 is the same as that of the second drying oven 12, and through holes are also provided around the lower end of the second drying oven 12. The heat-conducting box 15 covers these through holes and is bolted to the second drying oven 10. The heat-conducting box 15 is connected to the preheating box 14 through a first pipe 16, on which a first circulating pump 17 is installed. The heat-conducting box 15 is also connected to the preheating box 14 through a second pipe 18, on which a second circulating pump 19 is installed.

[0049] The down drying heat energy recovery and recycling device connects the heat transfer box 15 and the preheating box 14 through the first pipe 16, the second pipe 18, the first circulation pump 17, and the second circulation pump 19, realizing the efficient recycling of heat energy, greatly reducing energy waste, lowering drying energy consumption costs, and conforming to the concept of energy conservation and emission reduction. In addition, a hot air blower 13 is installed on the top of the second drying box 12, with the air outlet facing the bottom of the second drying box 12. Together with the first material conveying pipe 11 between the first drying box 10 and the second drying box 12, two-stage drying is realized, improving drying efficiency, and allowing the down to receive appropriate drying treatment at different stages.

[0050] Both the preheating box 14 and the heat-conducting box 15 are annular boxes, and their inner walls are made of aluminum alloy heat-conducting plates. Furthermore, the annular structure and aluminum alloy inner walls of the preheating box 14 and heat-conducting box 15 significantly improve heat transfer efficiency, ensuring that the heat generated by the second drying box 12 is fully collected and transferred to the preheating box 14 of the first drying box 10 for preheating.

[0051] Both the preheating chamber 14 and the heat transfer chamber 15 are filled with heat-conducting oil, and temperature sensors are installed in both chambers. The use of heat-conducting oil in these chambers significantly enhances heat conduction and storage performance. Heat-conducting oil has a higher heat capacity and better thermal conductivity than ordinary media, enabling it to quickly absorb and store residual heat from the second drying chamber 12 and efficiently transfer it to the preheating chamber 14 of the first drying chamber 10, further improving the efficiency of heat recovery and reducing energy waste. Simultaneously, the temperature sensors installed in the preheating chamber 14 and heat transfer chamber 15 allow for real-time and accurate monitoring of the chamber temperature. Any abnormal temperature fluctuations can be detected and adjusted promptly, ensuring the entire thermal energy circulation system operates under optimal temperature conditions. This guarantees the stability and reliability of the thermal energy circulation, providing stable thermal support for the down drying process and indirectly improving the quality and efficiency of down drying.

[0052] The second drying chamber 12 contains a compartment 121 for drying down. A heat-conducting box 15 surrounds the bottom of the compartment 121. A turntable 122 and a motor 123 are installed at the bottom of the second drying chamber 12. The motor 123 is connected to and drives the turntable 122 to rotate. The turntable 122 forms the bottom of the compartment 121. The heat-conducting box 15 surrounding the bottom of the compartment 121 ensures that the down inside is heated evenly from the bottom, avoiding uneven drying caused by local temperature differences and effectively improving the drying quality of the down. The turntable 122, as the bottom of the compartment 121, rotates under the drive of the motor 123, causing the down to tumble continuously, ensuring full contact between the down and hot air, further ensuring even heating, and also accelerating the drying speed and improving drying efficiency. In addition, this rotating structure also prevents the down from clumping together during the drying process, ensuring the fluffiness of the down and resulting in better quality after drying, meeting the high-quality drying requirements of the down processing industry.

[0053] A hollow rotating shaft 124 is fixed in the middle of the turntable 122. A first bevel gear 127 is fixed to the outer wall of the rotating shaft 124, and a second bevel gear 128 is fixed to the output shaft of the motor 123. The second bevel gear 128 meshes with the first bevel gear 127 and drives the rotating shaft 124 to rotate, thereby driving the turntable 122 to rotate. The meshing transmission between the first bevel gear 127 and the second bevel gear 128 can provide stable and precise power transmission, ensuring that the power output by the motor 123 is efficiently transmitted to the rotating shaft 124, so that the rotating shaft 124 rotates smoothly. This, in turn, ensures that the nozzle 1261 continuously and stably blows hot air into the down in the recessed area 1220, maintaining the good tumbling state of the down during the drying process and further improving the drying uniformity. At the same time, the gear transmission structure is compact and occupies little space, which can effectively save internal space of the device and facilitate the overall layout and structural design of the equipment. Moreover, gear transmission has high reliability and durability, reducing the probability of equipment failure during operation, reducing maintenance costs and downtime, improving production efficiency, and meeting the down processing industry's demand for stable equipment operation and efficient production.

[0054] Both the preheating box 14 and the heat transfer box 15 are equipped with two opposing notches 100. A first blower 20 is installed at one notch 100, and a first conveying pipe 11 is installed at the other notch 100. The first blower 20 at the notch 100 plays a crucial role in conveying down to the first conveying pipe 11. The airflow it generates effectively propels the down, allowing it to enter the first conveying pipe 11 quickly and stably, providing efficient material transport for the subsequent drying process. This design makes the transfer of down from one location to another smoother, avoiding the inefficiency and down loss that can occur with manual handling. The first conveying pipe 11, located at the other notch 100, works in conjunction with the first blower 20 to quickly convey the down to the first drying box 10 or the second drying box 12 after receiving it, achieving continuity and efficiency in the down drying process. At the same time, the combination of the two reduces the complexity of the equipment, maintains the compactness of the equipment structure while meeting functional requirements, further optimizes the collaborative operation mechanism of the entire device, and effectively improves the production efficiency of down drying.

[0055] A second blower 21 with its vent facing downwards is installed on the top of the first drying chamber 10. The strong airflow blown downwards by the second blower 21 directly acts on the down being dried, accelerating the air circulation inside the chamber and creating rapid heat exchange, significantly shortening the drying time and improving drying efficiency. Simultaneously, the downward airflow continuously tumbles the down during the drying process, preventing uneven heating caused by down accumulation and ensuring uniform heating throughout the drying process, effectively improving the drying quality. Furthermore, this design, in conjunction with other structures in the device, further optimizes the overall performance of the drying system, ensuring efficient and stable operation of the entire down drying process and meeting the high-quality and high-efficiency requirements of large-scale production.

[0056] Example 2

[0057] Example 2 is basically the same as Example 1, except that the upper end of the turntable 122 has at least three guide strips 1221 evenly distributed, while this example has six guide strips 1221. A recessed area 1220 is formed between two adjacent guide strips 1221. A hot air gun 125 is connected to the bottom end of the rotating shaft 124, providing a hot air source. The top of the rotating shaft 124 extends beyond the bottom of the recessed area 1220 and forms a nozzle 126. The nozzle 126 has several horizontally distributed nozzle holes 1261 facing the recessed area 1220. The hot air gun 125 blows the down feathers in the recessed area 1220 through the nozzle holes 1261, preventing the down feathers from sticking to the bottom of the recessed area 1220 for an extended period. The evenly distributed guide strips 1221 on the turntable 122, forming multiple recessed areas 1220, increase the movement path and tumbling effect of the down feathers during rotation, allowing for more thorough contact between the down feathers and hot air, further improving the uniformity of drying. The hollow rotating shaft 124 is connected to a hot air gun 125 at its bottom, and the nozzle 1261 of the top nozzle 126 faces horizontally towards the recessed area 1220, continuously blowing hot air into the down within the recessed area. This effectively prevents the down from sticking to the bottom of the recessed area for extended periods, thus preventing uneven heating or sticking that could affect the drying effect and quality, and ensuring the consistency of the down's loft and dryness. This design comprehensively optimizes the state of the down during the drying process, improving drying efficiency and quality, and meeting the stringent requirements of the down processing industry for high-quality drying.

[0058] Example 3

[0059] Example 3 is basically the same as Example 1 or 2, except that the down drying heat energy recovery and recycling device also includes a drying box 22. The outlet of the drying box 22 is connected to the inlet of the first drying box 10. A third blower 23 is installed at the top of the drying box 22. A fourth blower 24 and a second conveying pipe 25 are arranged opposite each other on the bottom two sides of the drying box 22. The drying box 22 is connected to the first drying box 10 through the second conveying pipe 25.

[0060] The air-drying chamber 22 works in conjunction with the first drying chamber 10 and the second drying chamber 12, significantly improving drying efficiency. The third blower 23 at the top of the air-drying chamber 22 and the fourth blowers 24 on both sides of the bottom form convection, which performs preliminary air drying before the down enters the first drying chamber 10, greatly reducing the moisture content of the down, reducing the drying pressure of the first drying chamber 10, enabling it to work more efficiently, and avoiding uneven drying caused by excessive moisture, thus laying a good foundation for the subsequent fine drying in the second drying chamber 12.

[0061] The second conveying pipe 25 at the bottom smoothly transports the pre-dried down to the first drying chamber 10. After preliminary drying in the first drying chamber 10, it is then sent to the second drying chamber 12 for further drying via the first conveying pipe 11. The entire process is seamlessly connected, greatly improving production efficiency. Moreover, because the initial drying chamber reduces the moisture content of the down, the energy consumption of the first and second drying chambers is reduced during the drying process, and the heat energy recovery and recycling effect is better, further optimizing energy utilization efficiency. In addition, the coordinated work of various components optimizes the overall layout of the device, ensuring continuous and stable down drying operations, meeting the needs of large-scale production, and improving the practicality and economy of the device.

Claims

1. A down drying heat recovery and recycling device, comprising a first drying chamber (10) for drying down, characterized in that: The first drying box (10) is connected to the second drying box (12) through the first conveying pipe (11). A hot air blower (13) is installed on the top of the second drying box (12), and the air outlet of the hot air blower (13) faces the bottom of the second drying box (12). The first drying oven (10) is surrounded by a preheating box (14), the inner wall of which is the inner wall of the first drying oven (10). The second drying oven (12) is surrounded by a heat-conducting box (15), the inner wall of which is the inner wall of the second drying oven (12). The heat-conducting box (15) is connected to the preheating box (14) through a first pipe (16), a first circulating pump (17) is installed on the first pipe (16), and the heat-conducting box (15) is connected to the preheating box (14) through a second pipe (18), a second circulating pump (19) is installed on the second pipe (18).

2. The down drying heat recovery and recycling device according to claim 1, characterized in that: Both the preheating box (14) and the heat conduction box (15) are annular boxes, and the inner walls of the preheating box (14) and the heat conduction box (15) are heat conduction plates made of aluminum alloy.

3. The down drying heat recovery and recycling device according to claim 1, characterized in that: Both the preheating box (14) and the heat transfer box (15) are filled with heat transfer oil, and both the preheating box (14) and the heat transfer box (15) are equipped with temperature sensors.

4. The down drying heat recovery and recycling device according to claim 1, characterized in that: The second drying chamber (12) is equipped with a compartment (121) for drying down. A heat-conducting box (15) surrounds the bottom of the compartment (121). A turntable (122) and a motor (123) are installed at the bottom of the second drying chamber (12). The motor (123) is connected to the turntable (122) and drives it to rotate. The turntable (122) is the bottom of the compartment (121).

5. The down drying heat recovery and recycling device according to claim 4, characterized in that: A hollow rotating shaft (124) is fixed in the middle of the turntable (122). A first bevel gear (127) is fixed on the outer wall of the rotating shaft (124). A second bevel gear (128) is fixed on the output shaft of the motor (123). The second bevel gear (128) meshes with the first bevel gear (127) and drives the rotating shaft (124) to rotate.

6. The down drying heat recovery and recycling device according to claim 5, characterized in that: The upper end of the turntable (122) is evenly distributed with at least three guide strips (1221), and a recess (1220) is formed between two adjacent guide strips (1221). A hot air gun (125) is connected to the bottom port of the rotating shaft (124). The top of the rotating shaft (124) extends out of the bottom of the recess (1220) and forms a nozzle (126). The nozzle (126) is evenly distributed with a number of spray holes (1261) that are horizontally oriented towards the recess (1220).

7. The down drying heat recovery and recycling device according to claim 1, characterized in that: The preheating box (14) and the heat transfer box (15) are each provided with two oppositely arranged notches (100), one of which is equipped with a first blower (20), and the other is equipped with a first conveying pipe (11).

8. The down drying heat recovery and recycling device according to claim 1, characterized in that: The top of the first drying box (10) is equipped with a second blower (21) with the air vent facing downwards.

9. The down drying heat recovery and recycling device according to any one of claims 1-8, characterized in that: It also includes a drying box (22), the outlet of the drying box (22) is connected to the inlet of the first drying box (10), a third blower (23) is installed at the top of the drying box (22), a fourth blower (24) and a second conveying pipe (25) are arranged opposite to each other on the bottom sides of the drying box (22), and the drying box (22) is connected to the first drying box (10) through the second conveying pipe (25).

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