Feather drying apparatus

Abstract

The utility model discloses a kind of feather drying equipment, including vertical cabinet and air blower, vertical cabinet front side hinged door panel, top is equipped with air outlet, inside longitudinal arrangement openwork plate, adjacent openwork plate is formed between feather drying area, each openwork plate side end coiled heat source pipeline, pipeline two ends are respectively communicated into pipe and out pipe;Air blower is connected by two sides vertical air supply pipeline across air pipe in each drying area top, air pipe is equipped with multiple air outlet downward air supply.The equipment adopts vertical static stratification structure to replace traditional drum tumbling mode, makes feather flat heat by openwork plate laminar air supply, avoids mechanical damage;Combined with vertical heat convection system, forced air supply and top conical chimney effect are used to accelerate wet hot air discharge in cooperation, improve heat cycle efficiency.Three-dimensional layout greatly reduces floor area, solve traditional technology high energy consumption, drying uneven, low space utilization and other problems, realize feather low damage, uniform drying, guarantee down product quality.

Description

Technical Field

[0001] This utility model relates to drying equipment, and more particularly to a feather drying equipment. Background Technology

[0002] Feather processing is a crucial link in the poultry industry chain, and its drying process directly affects the fluffiness, warmth retention, and economic value of feather products. Traditional industrial production commonly employs drum-type heating and drying technology, where a motor drives the drum to rotate, causing the feathers inside to come into contact with a heat source and dehydrate during the tumbling process. However, this technology has revealed a series of structural defects in practical applications, severely restricting production efficiency and product quality.

[0003] Tumble dryers suffer from significant mechanical damage. Feathers repeatedly impact the metal walls within the drum due to centrifugal force. Experimental data shows a high feather breakage rate within a single drying cycle, and fiber damage directly reduces the warmth retention of down products. Uniform drying is also difficult to guarantee. Due to the lack of airflow guidance within the drum, there are significant gradient differences in hot air distribution; the temperature difference at 20cm from the heat source can reach over 25℃, resulting in a final product moisture content fluctuation exceeding ±5%, far exceeding textile raw material standards.

[0004] In terms of space utilization and production line adaptability, traditional equipment adopts a horizontally laid-out roller structure, with a single unit typically occupying an area of ​​6-8 square meters, and cannot be expanded vertically. Utility Model Content

[0005] To address the shortcomings of the aforementioned technologies, this utility model provides a feather drying device.

[0006] To solve the above technical problems, the technical solution adopted by this utility model is: a feather drying device, including a vertical box and a blower. The front side of the vertical box is hinged with a door panel and the top is provided with an air outlet. The vertical box has hollowed-out plates arranged longitudinally at intervals in its accommodating space. A feather drying area is formed between two adjacent hollowed-out plates. A heat source pipe is coiled on one side end face of each hollowed-out plate. Each heat source pipe forms an inlet connecting to the inlet pipe and an outlet connecting to the outlet pipe outside the vertical box.

[0007] The blower is connected to two vertical air supply ducts on the side of the vertical housing. The two vertical air supply ducts are connected to the top of each feather drying area, and the ducts are equipped with multiple air outlets.

[0008] Furthermore, the door panel is hinged to the side wall edge of one side of the upright box body via a hinge.

[0009] Furthermore, the cross-sectional area of ​​the top of the vertical enclosure gradually narrows from bottom to top, and the air outlet duct stands vertically on the top of the vertical enclosure, connecting to the external storage space.

[0010] Furthermore, the perforated plate has through holes arranged in a rectangular array, with the diameter of each through hole ranging from 1 to 2 cm.

[0011] Furthermore, the heat source pipeline is coiled in a serpentine shape around the upper or lower end face of the perforated plate.

[0012] Furthermore, the vertical air supply duct is installed on two side walls close to the door panel of the vertical housing, and the circumferential side walls of the vertical air supply duct are connected to a perforated plate.

[0013] Furthermore, the two vertical air supply ducts are connected to the blower at the bottom of the vertical housing via a horizontal air supply duct, which is located below all the perforated panels.

[0014] Furthermore, a water storage tank is provided at the bottom of the vertical enclosure, with the upper opening of the water storage tank facing the perforated plate.

[0015] This patent provides a feather drying equipment that addresses the core problems of traditional drum drying technology, such as high mechanical damage rate, excessive energy consumption, uneven drying, and low space utilization. It proposes an innovative solution: replacing the horizontal drum tumbling mode with a vertical, static, layered drying structure; employing a perforated plate laminar flow air delivery technology to ensure feathers are laid flat and heated, completely eliminating fiber breakage caused by centrifugal impact, effectively reducing loft loss and ensuring the warmth of down products; designing a vertical heat convection efficiency enhancement system, utilizing the chimney effect and the synergistic effect of the blower to improve hot air circulation efficiency; and adopting a three-dimensional, compact layout, reducing the equipment's footprint from 6-8㎡ to 2-2.5㎡. This systematically breaks through the contradictions between energy consumption, quality, and space in traditional technology, promoting the industrial upgrade of feather processing towards high efficiency, energy saving, and low damage. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 .

[0017] Figure 2 This is a partial structural schematic diagram of the present invention.

[0018] Figure 3 for Figure 1 A schematic diagram of the structure of the middle part of the circle.

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 .

[0020] In the diagram: 1. Vertical cabinet; 2. Door panel; 3. Perforated panel; 4. Through hole; 5. Heat source pipeline; 6. Inlet pipe; 7. Outlet pipe; 8. Blower; 9. Vertical air supply pipeline; 10. Air duct; 11. Top; 12. Air outlet; 13. Water storage tank; 14. Air outlet; 15. Horizontal air supply pipeline; A. Feather drying area. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0022] A feather drying device, such as Figure 1 and Figure 4 As shown, the device includes a vertical housing 1, designed to save space and suitable for factory spaces with limited area. A door panel 2 is hinged to the front side of the vertical housing 1, and is connected to the side wall edge of the housing 1 via hinges. A sealing strip can be added to the door panel 2 to reduce heat leakage. When the door panel 2 is closed, an accommodating space is formed inside the vertical housing 1. A feather drying area A is formed between two adjacent perforated panels 3. The cross-sectional area of ​​the top 11 of the vertical housing 1 gradually tapers from bottom to top. This tapering structure accelerates the accumulation of humid and hot air, improves airflow efficiency, and prevents secondary condensation caused by humid and hot air stagnation inside the housing. An air outlet duct 12 is provided on the top 11 of the vertical housing 1. The top 11 of the vertical box 1 connects to the external accommodating space. Note that in this embodiment, the exhaust duct 12 forms a chimney effect through the top 11's converging structure. It utilizes the blowing effect of the subsequent blower 8 to accelerate the accumulation of hot and humid air and efficiently exhaust it outside the box. In other embodiments, the exhaust duct 12 can also be equipped with external exhaust equipment to quickly reduce humidity and improve drying efficiency. A water storage tank 13 is provided at the bottom of the accommodating space of the vertical box 1. The upper opening of the water storage tank 13 of the vertical box 1 faces the perforated plate 3 and directly receives the water dripping from the perforated plate 3. It is used to collect the condensate and residual moisture dripping from the feathers during the drying process.

[0023] like Figure 3As shown, the accommodating space has perforated plates 3 arranged longitudinally at intervals. The perforated plates 3 have through holes 4 arranged in a rectangular array. The diameter of each through hole 4 is 1-2 cm, which is smaller than the size of a feather (generally, the length of a feather is >5 cm) to prevent feathers from falling out of the holes. It should be understood that this only refers to the size of the hole to limit the feathers from falling out of the holes. The rectangular array arrangement ensures a ventilation rate of >70%, taking into account both the passage of airflow and water droplets and the structural strength. Each perforated plate 3 has a heat source pipe 5 coiled around one end face. The heat source pipe 5 is coiled in a serpentine shape near the upper end face of the perforated plate 3, which prioritizes heating the upper air. It utilizes the natural upward movement of hot air to form convection, which is suitable for rapid preheating of feathers with high moisture content. Each heat source pipe 5 forms an inlet connected to the inlet pipe 6 and an outlet connected to the outlet pipe 7 outside the vertical box 1. The inlet pipe 6 and outlet pipe 7 are driven by an external circulation pump to flow the heat medium (such as steam or heat transfer oil) in the pipe, avoiding direct contact between the heat medium and the feathers to prevent contamination.

[0024] In other embodiments, the heat source pipe 5 is coiled in a serpentine shape around the lower end of the perforated plate 3. This method directly heats the perforated plate 3 and dries the feathers through heat conduction radiation from the plate. It is suitable for slow drying at low temperature in the later stage to protect the feather fibers.

[0025] like Figure 2 As shown, the feather drying equipment also includes a blower 8. The blower 8 is connected to two vertical air supply pipes 9 on the side of the vertical housing 1 to avoid occupying the internal space of the housing. At the same time, the side wall structure is used to enhance the stability of the air supply pipes. The two vertical air supply pipes 9 are connected to the air ducts 10 across the top 11 of each feather drying zone A. The air ducts 10 are provided with multiple air outlets 14, which blow air downwards from the top 11 of each drying zone and blow the airflow downwards through the evenly distributed air outlets 14.

[0026] like Figure 4 As shown, the vertical air supply ducts 9 are installed close to the two side walls next to the door panel 2 of the vertical housing 1, and the circumferential side walls of the vertical air supply ducts 9 are connected to the perforated plates 3. The two vertical air supply ducts 9 are connected to the blower 8 at the lower part of the vertical housing 1 through a horizontal air supply duct 15, which is located below all the perforated plates 3.

[0027] The drying process of this patent includes the following stages in different embodiments:

[0028] The first step is the loading stage, which involves all embodiments. Open the side hinged door panel 2, and evenly spread the wet feathers on the multi-layer perforated plate 3, with each layer forming an independent drying area. Then close the door panel 2.

[0029] The next stage is the heat source activation and air heating phase. In the upper coiled phase (current embodiment): the heat medium (steam / heat transfer oil) enters the serpentine pipeline through an external circulation pump, preferentially heating the air above the perforated plate 3, utilizing the natural rise of the hot air to create convection. In the lower coiled phase (other embodiments): the perforated plate 3 is directly heated, and heat is radiated to the feathers through heat conduction, suitable for low-temperature slow drying to protect the fibers.

[0030] During this phase, in conjunction with the forced air circulation stage driven by blower 8, the airflow from blower 8 outlet enters the horizontal air supply duct 15. The horizontal duct distributes the airflow to the vertical air supply ducts 9 on both sides. The airflow flows upward along the vertical air supply ducts 9, reaching the top 11 of each drying zone, and then enters the cross-flow duct 10. Multiple air outlets 14 on the duct 10 blow the airflow downward evenly, forming a laminar flow pattern to prevent strong airflow from blowing away the feathers. The air heated by the heat source duct 5 rises naturally and overlaps with the forced airflow driven by blower 8 to form a composite hot air. The hot air penetrates the feather layer, carrying away the hot air upward, while the heavy water droplets seep downward through the through holes 4 of the perforated plate 3.

[0031] Finally, the hot and humid air is exhausted and condensate is collected. The cross-sectional area of ​​the top 11 of the chamber gradually narrows, forming a cone-shaped structure where hot and humid air gathers and rises rapidly. Forced airflow propels the hot and humid air through the exhaust duct 12 for efficient exhaust, preventing moisture retention inside the chamber and subsequent secondary condensation. Condensate and residual moisture from the feathers drip through the holes 4 in the perforated plate 3 into the bottom water storage tank 13.

[0032] The blower employs a layered, uniform airflow mode. It distributes airflow to the vertical airflow ducts on both sides via a horizontal airflow duct, delivering it upwards along the side walls of the vertical housing to ensure uniform airflow to the top ducts of each drying zone. The air outlets of each duct blow air downwards, creating a laminar flow pattern with a wind speed controlled between 0.5-1.2 m / s (to avoid strong airflow disturbing the feathers), ensuring that hot air penetrates the feather layer evenly.

[0033] A dynamic adjustment mode can also be used. During the preheating stage, the blower starts at low speed (30%-50% power) to gradually increase the temperature in conjunction with the heat source piping, reducing the impact of airflow on wet feathers. During the main drying stage, the speed is increased to medium-high speed (70%-90% power) to enhance the penetration of hot air and accelerate moisture evaporation. During the low-temperature slow drying stage, the speed is reduced to low to reduce the risk of mechanical damage and protect the feather fiber structure. Alternatively, the blower speed can be automatically adjusted according to the temperature of the heat transfer medium (such as steam or heat transfer oil) in the heat source piping to maintain a stable temperature gradient within the chamber (e.g., setting a temperature difference ≤ 5℃).

[0034] Alternatively, a combined circulation efficiency mode can be adopted, combining forced convection with the natural chimney effect: the blower drives the airflow to rise naturally with the hot air, forming a coordinated convection, while the top conical structure accelerates the discharge of humid and hot air. By adjusting the blower airflow to match the exhaust speed of the air outlet, heat leakage is prevented and dehumidification efficiency is improved.

[0035] This patent addresses the core problems of traditional drum drying technology, such as high mechanical damage rate, excessive energy consumption, uneven drying, and low space utilization, and proposes an innovative solution: It replaces the horizontal drum tumbling mode with a vertical static layered drying structure, employs perforated plate laminar flow air delivery technology to ensure feathers are laid flat and heated, completely eliminating fiber breakage caused by centrifugal impact, effectively reducing loft loss and ensuring the warmth of down products; it designs a vertical heat convection efficiency enhancement system, utilizing the chimney effect and the synergistic effect of the blower to improve hot air circulation efficiency; and it adopts a three-dimensional compact layout, reducing the equipment footprint from 6-8㎡ to 2-2.5㎡, systematically breaking through the contradiction between energy consumption, quality, and space in traditional technology, and promoting the industrial upgrade of feather processing towards high efficiency, energy saving, and low damage.

[0036] The above embodiments are not intended to limit the present invention. Unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. The present invention is not limited to the examples above. Changes, modifications, additions, or substitutions made by those skilled in the art within the scope of the technical solution of the present invention are also within the protection scope of the present invention. Furthermore, the technical features involved in the different embodiments of the present application described above can be combined with each other as long as they do not conflict with each other.

Claims

1. A feather drying device, characterized in that, It includes a vertical housing and a blower. The front side of the vertical housing is hinged with a door panel and the top is equipped with an air outlet. The vertical housing has perforated panels arranged longitudinally at intervals. A feather drying area is formed between two adjacent perforated panels. A heat source pipe is coiled on one side of each perforated panel. Each heat source pipe forms an inlet connecting to the inlet pipe and an outlet connecting to the outlet pipe outside the vertical housing. The blower is connected to two vertical air supply pipes on the side of the vertical housing. The two vertical air supply pipes are connected to the top of each feather drying area by a duct, and the duct is equipped with multiple air outlets.

2. The feather drying equipment according to claim 1, characterized in that: The door panel is hinged to the side wall edge of one side of the upright box body via a hinge.

3. The feather drying equipment according to claim 1, characterized in that: The cross-sectional area of ​​the top of the vertical enclosure gradually narrows from bottom to top. The air outlet duct stands on the top of the vertical enclosure and connects to the external accommodating space.

4. The feather drying equipment according to claim 1, characterized in that: The perforated plate has through holes arranged in a rectangular array, with the diameter of each through hole ranging from 1 to 2 cm.

5. The feather drying equipment according to claim 1, characterized in that: The heat source pipeline is coiled in a serpentine shape near the upper or lower end of the perforated plate.

6. The feather drying equipment according to claim 2, characterized in that: The vertical air supply duct is installed on two side walls close to the door panel of the vertical housing, and the circumferential side walls of the vertical air supply duct are connected to a perforated plate.

7. The feather drying equipment according to claim 6, characterized in that: The two vertical air supply ducts are connected to the blower at the bottom of the vertical housing via a horizontal air supply duct, which is located below all the perforated panels.

8. The feather drying equipment according to claim 7, characterized in that: The bottom of the vertical box is equipped with a water storage tank, and the upper opening of the water storage tank faces the hollow plate.

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