Energy-saving hot air oven for producing regenerated polyester staple fibers

Abstract

The utility model provides an energy-saving hot air oven for regenerated polyester staple fiber production, which relates to the technical field of polyester staple fiber processing and comprises an oven body, a fan and a heater, a feed port is mounted at the top end of the oven body, a discharge port is mounted at the bottom end of the oven body, and a heat storage bin is arranged in the oven body. The feeding port, the discharging port and the heat storage bin are communicated with one another, an annular partition plate is installed at the position, located at the bottom end of the feeding port, in the heat storage bin, a plurality of first air holes and second air holes are formed in the surface of the annular partition plate, and the first air holes are communicated with the second air holes. According to the device, the contact time of hot air and materials can be prolonged, the heat energy utilization efficiency is high, hot air can conveniently flow among the materials, the materials are evenly dried, and the production cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of polyester staple fiber processing technology, and more specifically, it relates to an energy-saving hot air drying oven for the production of recycled polyester staple fiber. Background Technology

[0002] Recycled polyester staple fiber is a fiber made from recycled and reprocessed waste polyester materials (such as discarded plastic bottles, old clothes, and polyester scraps generated during production). It is an environmentally friendly and sustainable product. In the production of polyester staple fiber, hot air drying ovens are an indispensable key piece of equipment used to dry and shape the fibers, remove moisture or residual solvents from the fibers, and ensure the quality of the fibers and subsequent processing.

[0003] Based on the above, the inventors have discovered the following problems: In the process of using existing polyester staple fiber hot air drying ovens, most of the equipment does not dry the materials evenly, has high energy consumption, and low thermal energy utilization efficiency, which leads to increased production costs and unstable product quality.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided an energy-saving hot air drying oven for the production of recycled polyester staple fiber, in order to achieve a more practical purpose. Utility Model Content

[0005] The purpose and effectiveness of this energy-saving hot air drying oven for the production of recycled polyester staple fiber are achieved by the following specific technical means:

[0006] An energy-saving hot air drying oven for the production of recycled polyester staple fiber includes a box body, a fan, and a heater. The top of the box body is equipped with a feed inlet, and the bottom of the box body is equipped with a discharge outlet. The interior of the box body is provided with a heat storage chamber. The feed inlet, the discharge outlet, and the heat storage chamber are interconnected. An annular partition is installed at the bottom of the feed inlet inside the heat storage chamber. The surface of the annular partition is provided with a plurality of air holes one and air holes two, and the air holes one and air holes two are interconnected.

[0007] Furthermore, the first air hole is located on the outer side of the annular partition, the second air hole is located on the inner side of the annular partition, and the second air hole is located at an upward oblique angle of 45° to the first air hole.

[0008] Furthermore, a rotating rod is placed inside the annular partition, and a spiral blade is installed around the bottom end of the rotating rod, with the outer periphery of the spiral blade fitting against the inner wall of the annular partition.

[0009] Furthermore, the surface of the spiral blade is provided with several through holes.

[0010] Furthermore, a mounting bracket is installed at the top of the housing, and a motor is installed at the top of the mounting bracket. The output end of the motor is connected to the top of the rotating rod for transmission.

[0011] Furthermore, a pair of pipes are installed at both ends of the box, the pair of pipes are diagonally distributed, a valve is installed at one end of the pipe, and a pair of air inlets are provided at both ends of the heat storage chamber, the pipes are connected to the air inlets.

[0012] Furthermore, the housing is connected to a heater via a pipe, and one side of the heater is connected to a fan.

[0013] Furthermore, a controller is installed on one side of the housing, and a temperature sensor is installed inside the heat storage chamber. The controller is electrically connected to the motor, valve, fan, temperature sensor, and heater, respectively.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] By connecting air vent one and air vent two, with air vent two located at an upward angle of 45° to air vent one, the hot air in the heat storage chamber blows upward at 45° along air vent one and air vent two, making contact with the material in the annular partition, thus prolonging the contact time between the hot air and the material, making reasonable use of heat energy, improving drying efficiency, and effectively saving hot air energy.

[0016] By using the motor, rotating rod, spiral blades, and through holes in conjunction, the motor rotates, driving the rotating rod to rotate. At this time, the spiral blades rotate, transporting the material downwards. Simultaneously, the material rotates around the rotating rod during transportation, avoiding the short time required for straight-line transportation. This effectively extends the contact time between the material and the hot air. Furthermore, the through holes on the spiral blades facilitate the flow of hot air between the materials, preventing material accumulation and uneven drying inside, thus improving drying efficiency, saving energy, and enhancing practicality.

[0017] By using pipes, valves, and air inlets in combination, with pipes diagonally distributed on both sides of the chamber, hot air enters the heat storage chamber through the air inlets, causing the airflow to circulate within the heat storage chamber, promoting hot air flow and accelerating material drying.

[0018] The temperature is set by the controller, the heater heats the air, and the hot air is blown into the pipe by the fan. The temperature sensor monitors the temperature in the heat storage chamber, and the air volume of the hot air is controlled by the valve to avoid waste of resources. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of an energy-saving hot air drying oven for the production of recycled polyester staple fiber according to this utility model.

[0020] Figure 2 This is an explosion diagram of an energy-saving hot air drying oven for the production of recycled polyester staple fiber according to this utility model.

[0021] Figure 3 This utility model relates to an energy-saving hot air drying oven for the production of recycled polyester staple fiber. Figure 2 Enlarged diagram of point A in the middle.

[0022] Figure 4 This is a cross-sectional schematic diagram of the body of an energy-saving hot air drying oven for the production of recycled polyester staple fiber according to this utility model.

[0023] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0024] 1. Housing; 2. Feed inlet; 3. Mounting frame; 4. Motor; 5. Rotating rod; 6. Pipeline; 7. Valve; 8. Fan; 9. Controller; 10. Discharge outlet; 11. Heat storage chamber; 12. Annular partition; 13. Air vent one; 14. Air vent two; 15. Spiral blade; 16. Through hole; 17. Air inlet; 18. Temperature sensor; 19. Heater. Detailed Implementation

[0025] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0026] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Example:

[0029] As attached Figure 1 To be continued Figure 4 As shown:

[0030] This utility model provides an energy-saving hot air drying oven for the production of recycled polyester staple fiber, including a box body 1, a fan 8 and a heater 19. The top of the box body 1 is equipped with a feed inlet 2 and the bottom of the box body 1 is equipped with a discharge outlet 10. The box body 1 is equipped with a heat storage chamber 11. The feed inlet 2, the discharge outlet 10 and the heat storage chamber 11 are interconnected. The heat storage chamber 11 is equipped with an annular partition 12 located at the bottom of the feed inlet 2. The surface of the annular partition 12 is provided with a plurality of air holes 13 and air holes 14, which are interconnected.

[0031] The first air hole 13 is located on the outer side of the annular partition 12, and the second air hole 14 is located on the inner side of the annular partition 12. The second air hole 14 is located at an upward oblique angle of 45° from the first air hole 13 and is connected to the first air hole 13. The hot air in the heat storage chamber 11 blows upward at 45° along the first air hole 13 and the second air hole 14, and comes into contact with the material in the annular partition 12, prolonging the contact time between the hot air and the material, making reasonable use of heat energy, improving drying efficiency, and effectively saving hot air energy.

[0032] The annular partition 12 contains a rotating rod 5, and a spiral blade 15 is installed around the bottom of the rotating rod 5. The outer periphery of the spiral blade 15 is in contact with the inner wall of the annular partition 12.

[0033] The spiral blade 15 has several through holes 16 on its surface.

[0034] The top of the housing 1 is equipped with a mounting frame 3, and the top of the mounting frame 3 is equipped with a motor 4. The output end of the motor 4 is connected to the top of the rotating rod 5. Through the cooperation of the motor 4, the rotating rod 5, the spiral blade 15 and the through hole 16, the motor 4 rotates and drives the rotating rod 5 to rotate. At this time, the spiral blade 15 rotates and transports the material downward. At the same time, the material rotates around the rotating rod 5 during the transportation process, avoiding the short time of straight transportation, effectively extending the contact time between the material and the hot air. In addition, the spiral blade 15 has through holes 16, which facilitates the flow of hot air between the materials, prevents the material from accumulating and causing uneven drying inside, improves drying efficiency, saves energy and improves practicality.

[0035] The box body 1 has a pair of pipes 6 installed at both ends, which are diagonally distributed. A valve 7 is installed at one end of each pipe 6. The heat storage chamber 11 has a pair of air inlets 17 at both ends. The pipes 6 are connected to the air inlets 17. Through the cooperation of the pipes 6, valves 7 and air inlets 17, the pipes 6 are diagonally distributed on both sides of the box body 1. Hot air enters the heat storage chamber 11 through the air inlets 17, causing the airflow to circulate in the heat storage chamber 11, promoting the flow of hot air and accelerating the drying of materials.

[0036] The housing 1 is connected to the heater 19 via a pipe 6, and one side of the heater 19 is connected to the fan 8.

[0037] The controller 9 is installed on one side of the housing 1, and the temperature sensor 18 is installed inside the heat storage chamber 11. The controller 9 is electrically connected to the motor 4, valve 7, fan 8, temperature sensor 18 and heater 19 respectively. The temperature is set by the controller 9, the heater 19 heats the air, and the fan 8 blows the hot air into the pipe 6. The temperature sensor 18 monitors the temperature inside the heat storage chamber 11, and the valve 7 controls the airflow of the hot air to avoid resource waste.

[0038] The specific usage and function of this embodiment are as follows:

[0039] First, check the integrity of the device. Only use it after confirming it is intact. During use, first connect the feed inlet 2 to the external conveying mechanism. Material enters the spiral blade 15 through the feed inlet 2. The controller 9 sets the temperature and starts the equipment. The heater 19 heats the air, and the fan 8 blows hot air into the pipe 6 and into the heat storage chamber 11. The motor 4 rotates, driving the rotating rod 5 to rotate. At this time, the spiral blade 15 rotates, transporting the material downwards. Simultaneously, the material rotates around the rotating rod 5 during transport, avoiding the short time required for straight-line transport and effectively extending the contact time between the material and the hot air. Furthermore, the spiral blade 15 has through holes 16, facilitating the flow of hot air between the materials, preventing material accumulation, uneven drying, and heat storage. Hot air inside chamber 11 is blown upwards at a 45° angle along air vents 13 and 14, making contact with the material inside the annular partition 12. This prolongs the contact time between the hot air and the material, making rational use of heat energy, improving drying efficiency, saving energy, and enhancing practicality. Pipes 6 are diagonally distributed on both sides of the chamber 1. Hot air enters the heat storage chamber 11 through the air inlet 17, causing the airflow to circulate within the heat storage chamber 11, promoting hot air flow, and accelerating material drying. Temperature sensor 18 monitors the temperature inside the heat storage chamber 11, and valve 7 controls the airflow of hot air to avoid resource waste. Finally, the material is discharged through the discharge port 10. This device has a novel overall design and simple structure, and is therefore worthy of widespread promotion and use.

[0040] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. An energy-saving hot air drying oven for the production of recycled polyester staple fiber, comprising a box body (1), a fan (8), and a heater (19), characterized in that: The top of the box (1) is equipped with a feed inlet (2), and the bottom of the box (1) is equipped with a discharge outlet (10). The box (1) is equipped with a heat storage chamber (11). The feed inlet (2), the discharge outlet (10) and the heat storage chamber (11) are interconnected. The heat storage chamber (11) is equipped with an annular partition (12) at the bottom of the feed inlet (2). The surface of the annular partition (12) is provided with several air holes one (13) and air holes two (14). The air holes one (13) and air holes two (14) are interconnected.

2. The energy-saving hot air drying oven for the production of recycled polyester staple fiber as described in claim 1, characterized in that: The first air hole (13) is located on the outside of the annular partition (12), the second air hole (14) is located on the inside of the annular partition (12), and the second air hole (14) is located at an upward oblique angle of 45° from the first air hole (13).

3. The energy-saving hot air drying oven for the production of recycled polyester staple fiber as described in claim 2, characterized in that: A rotating rod (5) is placed inside the annular partition (12). A spiral blade (15) is installed on the outer periphery of the bottom end of the rotating rod (5). The outer periphery of the spiral blade (15) is in contact with the inner wall of the annular partition (12).

4. The energy-saving hot air drying oven for the production of recycled polyester staple fiber as described in claim 3, characterized in that: The surface of the spiral blade (15) is provided with several through holes (16).

5. The energy-saving hot air drying oven for the production of recycled polyester staple fiber as described in claim 4, characterized in that: The top of the housing (1) is equipped with a mounting bracket (3), and the top of the mounting bracket (3) is equipped with a motor (4). The output end of the motor (4) is connected to the top of the rotating rod (5) for transmission.

6. The energy-saving hot air drying oven for the production of recycled polyester staple fiber as described in claim 5, characterized in that: A pair of pipes (6) are installed at both ends of the box (1), and the pair of pipes (6) are diagonally distributed. A valve (7) is installed at one end of the pipe (6). A pair of air inlets (17) are provided at both ends of the heat storage chamber (11), and the pipes (6) are connected to the air inlets (17).

7. The energy-saving hot air drying oven for the production of recycled polyester staple fiber as described in claim 6, characterized in that: The housing (1) is connected to the heater (19) via a pipe (6), and one side of the heater (19) is connected to the fan (8).

8. The energy-saving hot air drying oven for the production of recycled polyester staple fiber as described in claim 7, characterized in that: A controller (9) is installed on one side of the housing (1), and a temperature sensor (18) is installed inside the heat storage chamber (11). The controller (9) is electrically connected to the motor (4), valve (7), fan (8), temperature sensor (18) and heater (19).

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