Polyester chip drying machine

Abstract

The polyester chip drying machine comprises a drying cabin, a plurality of material guide plates, a hot-air blower, a dust remover and an angle adjusting assembly, the drying cabin is of a vertically-arranged cuboid structure, the top and the bottom of the drying cabin are provided with a feeding port and a discharging port respectively, the hot-air blower is communicated with the bottom of the drying cabin, and the dust remover is communicated with the discharging port. The dust remover is communicated with the top of the drying cabin; the material guiding plates are arranged in a left-right staggered mode in the vertical direction, the side edges of the material guiding plates are hinged to the two opposite side edges of the drying bin correspondingly, the side edges, away from the side walls of the drying bin, of the material guiding plates obliquely extend downwards, and the other two opposite sides of the material guiding plates make sliding contact with the side walls of the drying bin; the angle adjusting assembly is connected with the bottom face of the material guide plate and used for adjusting the inclination angle of the material guide plate. The polyester chip drying device solves the problem that the polyester chip drying effect is poor, and the drying quality is improved.

Description

Technical Field

[0001] This utility model relates to polyester chip production equipment, and more particularly to a polyester chip dryer. Background Technology

[0002] Polyester chips typically refer to polyester raw materials obtained from polymerization, generally processed into sheet-like granules of approximately 4*5*2 mm. Polyester production processes include direct esterification (PTA) and transesterification (DMT). As a hydrophilic material, polyester chips are prone to breakage or fuzzing when used to make yarn, affecting normal production. Therefore, polyester chip raw materials need to be dried to remove moisture. Current technology generally uses a belt conveyor structure to dry the polyester chips in a heated chamber. However, because the polyester chips are stationary, the accumulated chips inside cannot be completely dried. Alternatively, the polyester chips are placed in a container and stirred while the side walls of the container are heated. This drying method cannot quickly transfer heat to the polyester chips for drying. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a polyester chip dryer, which solves the problem of poor drying effect on polyester chips in existing technologies.

[0004] According to an embodiment of this utility model, a polyester chip dryer includes a drying chamber, several guide plates, a hot air blower, a dust collector, and an angle adjustment assembly. The drying chamber is a vertically arranged cuboid structure, with an inlet and an outlet at the top and bottom, respectively. The hot air blower is connected to the bottom of the drying chamber, and the dust collector is connected to the top of the drying chamber. The guide plates are arranged alternately in a vertical direction, with their sides hinged to two opposite sides of the drying chamber. The sides of the guide plates away from the sidewalls of the drying chamber extend downwards at an angle, and the other opposite sides of the guide plates slide in contact with the sidewalls of the drying chamber. The angle adjustment assembly is connected to the bottom surface of the guide plates for adjusting the tilt angle of the guide plates.

[0005] The technical principle of this invention is as follows: the guide plate changes the falling path of the particles through physical collision, prolonging their residence time in the drying chamber, so that the hot airflow has more time to contact the polyester chips.

[0006] Preferably, the angle adjustment assembly includes a telescopic rod, several connecting rods, and a main fixing rod. The connecting rods are horizontally arranged, with one end slidably connected to the bottom of the guide plate and the other end extending outward through the side wall of the drying chamber. The main fixing rod is vertically arranged and sequentially fixedly connected to the ends of each of the connecting rods. The telescopic rods are symmetrically arranged at both ends of the main fixing rod, with the fixed end of the telescopic rod fixedly connected to the outer wall of the drying chamber and the movable end of the telescopic rod fixedly connected to the main fixing rod.

[0007] Preferably, a plurality of sliding sleeves are fixedly provided on the side wall of the drying chamber, and the connecting rod passes through the sliding sleeves and the two are slidably connected; an inclined support rod is provided between the sliding sleeves and the side wall of the drying chamber.

[0008] Preferably, the bottom of the drying chamber is formed by two inclined intersecting planes with the intersection line running at an incline, and the discharge port is located at the bottom of the intersection line.

[0009] Preferably, air inlets are provided at the bottom of the three side walls, except for the discharge port, and an upwardly inclined air inlet pipe is connected to the outside of the air inlet.

[0010] Preferably, the feed inlet is located at the top of the side wall of the drying chamber, and the top of the drying chamber has a conical structure, with the cone apex connected to the dust collector.

[0011] Preferably, the tilt angle of the guide plate is between 30° and 75°.

[0012] Compared to existing technologies, this invention offers the following advantages: The guide plates adopt a vertically staggered layout, combined with hinged and sliding contact structures. This design allows the polyester chips to have three-dimensional spatial contact with the hot air during their descent, increasing the heat exchange area per unit volume of material compared to traditional horizontal conveyor belt drying methods. The material residence time can be precisely controlled by adjusting the guide plate angle, effectively preventing over-drying or under-drying. The hot air blower at the bottom creates an upward hot airflow, forming counter-current heat transfer with the falling chips, resulting in high hot air utilization. The vertical cuboid structure reduces the equipment's footprint compared to horizontal dryers. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the air inlet of this utility model.

[0015] In the above attached diagram: 1. Drying chamber; 2. Guide plate; 3. Connecting rod; 4. Sliding sleeve; 5. Telescopic rod; 6. Main fixing rod; 7. Hot air blower; 8. Discharge port; 9. Feed port; 10. Dust collector; 11. Air inlet pipe. Detailed Implementation

[0016] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0017] like Figure 1 As shown in the figure, this utility model embodiment proposes a polyester chip dryer, including a drying chamber 1, several guide plates 2, a hot air blower 7, a dust collector 10, and an angle adjustment assembly. The drying chamber 1 is a vertically arranged cuboid structure, with an inlet 9 at the top and an outlet 8 at the bottom. The hot air blower 7 is connected to the bottom of the drying chamber 1, and the dust collector 10 is connected to the top of the drying chamber 1. The guide plates 2 are arranged alternately in the vertical direction, with their sides hinged to two opposite sides of the drying chamber 1. The sides of the guide plates 2 away from the sidewall of the drying chamber 1 extend downwards at an angle. The other opposite sides of the guide plates 2 are in sliding contact with the sidewall of the drying chamber 1. The angle adjustment assembly is connected to the bottom surface of the guide plates 2 for adjusting the tilt angle of the guide plates 2. In this embodiment, a screw conveyor transports the polyester chips to the inlet 9. The hot air blower 7 heats the air with an electric heating wire and then delivers the air into the interior of the drying chamber 1. Sufficient gaps are provided in the vertical direction for the guide plates 2. If the guide plates 2 are too dense, it may cause airflow obstruction, increased pressure drop, or even the formation of local dead zones, affecting the uniform distribution of hot air and reducing drying efficiency. When the polyester chips have high humidity, the tilt angle of the guide plates 2 can be reduced to prolong the residence time; if it is necessary to prevent accumulation and blockage, the tilt angle can be increased to accelerate the sliding speed.

[0018] Preferably, the angle adjustment assembly includes a telescopic rod 5, several connecting rods 3, and a main fixing rod 6. The connecting rods 3 are horizontally arranged, with one end slidably connected to the bottom of the guide plate 2, and the other end extending outward through the side wall of the drying chamber 1. The main fixing rod 6 is vertically arranged and sequentially fixedly connected to the ends of each of the connecting rods 3. The telescopic rods 5 are symmetrically arranged at both ends of the main fixing rod 6, with the fixed end of the telescopic rod 5 fixedly connected to the outer wall of the drying chamber 1, and the movable end of the telescopic rod 5 fixedly connected to the main fixing rod 6. In this embodiment, the telescopic rod 5 is an electric push rod. A gap is provided between the hinged sides of the connecting rods 3 and the guide plate 2. When the telescopic rod 5 extends or retracts, it changes the distance between the main fixing rod 6 and the side of the drying chamber 1. When the main fixing rod 6 moves, it drives the connecting rods 3 to move horizontally, and the ends of the connecting rods 3 push the guide plate 2 to rotate.

[0019] Preferably, a plurality of sliding sleeves 4 are fixedly installed on the side wall of the drying chamber 1, and the connecting rod 3 passes through the sliding sleeves 4 and is slidably connected to them. An inclined support rod is provided between the sliding sleeve 4 and the side wall of the drying chamber 1. The sliding sleeves 4 provide sufficient support for the connecting rod 3, and the support rod ensures the stability of the structure.

[0020] Preferably, the bottom of the drying chamber 1 is formed by two inclined intersecting planes with the intersection line running at an angle, and the discharge port 8 is located at the bottom of the intersection line. After falling, the polyester chips slide back down along the inclined plane and then are discharged from the discharge port 8 along the intersection line.

[0021] like Figure 2 As shown, preferably, air inlets are provided at the bottom of the three side walls, excluding the discharge port 8. Each air inlet is externally connected to an upwardly inclined air inlet pipe 11. This structure allows the hot airflow to flow evenly upwards from the bottom of the drying chamber 1. The inclined air inlet pipe 11 prevents polyester chips from entering.

[0022] Preferably, the feed inlet 9 is located at the top of the side wall of the drying chamber 1, and the top of the drying chamber 1 has a conical structure. The apex of the conical structure is connected to the dust collector 10, which facilitates the entry of hot air carrying dust into the dust collector 10. In this embodiment, the gas discharged from the dust collector 10 can be returned to the hot air blower 7, improving the efficiency of heat energy utilization.

[0023] Preferably, the tilt angle of the guide plate 2 is between 30° and 75°. The specific adjustment needs to be based on the particle characteristics: 30° to 45° is recommended for small particles / low density, and 60° to 75° is recommended for large particles / high density.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A polyester chip drying machine, characterized in that: The equipment includes a drying chamber (1), several guide plates (2), a hot air blower (7), a dust collector (10), and an angle adjustment assembly. The drying chamber (1) is a vertically arranged cuboid structure. The top and bottom of the drying chamber (1) are respectively provided with a feed inlet (9) and a discharge outlet (8). The hot air blower (7) is connected to the bottom of the drying chamber (1), and the dust collector (10) is connected to the top of the drying chamber (1). The guide plates (2) are arranged alternately on the left and right sides in the vertical direction. The sides of the guide plates (2) are hinged to the two opposite sides of the drying chamber (1). The side of the guide plate (2) away from the side wall of the drying chamber (1) extends downward at an angle. The other two opposite sides of the guide plate (2) slide in contact with the side wall of the drying chamber (1). The angle adjustment assembly is connected to the bottom surface of the guide plate (2) to adjust the tilt angle of the guide plate (2).

2. The polyester chip dryer as described in claim 1, characterized in that: The angle adjustment assembly includes a telescopic rod (5), several connecting rods (3) and a main fixing rod (6). The connecting rods (3) are horizontally arranged, with one end of the connecting rod (3) slidably connected to the bottom of the guide plate (2), and the other end of the connecting rod (3) extending outward through the side wall of the drying chamber (1). The main fixing rod (6) is vertically arranged and is fixedly connected to the ends of each of the connecting rods (3) in sequence. The telescopic rods (5) are symmetrically arranged at both ends of the main fixing rod (6), with the fixed end of the telescopic rod (5) fixedly connected to the outer wall of the drying chamber (1), and the movable end of the telescopic rod (5) fixedly connected to the main fixing rod (6).

3. A polyester chip dryer as described in claim 2, characterized in that: A plurality of sliding sleeves (4) are fixedly installed on the side wall of the drying chamber (1), and the connecting rod (3) passes through the sliding sleeves (4) and the two are slidably connected; an inclined support rod is provided between the sliding sleeves (4) and the side wall of the drying chamber (1).

4. A polyester chip dryer as described in claim 1, characterized in that: The bottom of the drying chamber (1) is formed by two inclined intersecting planes with their intersection line running in an inclined direction, and the discharge port (8) is located at the bottom of the intersection line.

5. A polyester chip dryer as described in claim 1, characterized in that: In addition to the discharge port (8), the bottom of the three side walls is provided with air inlets, and the air inlets are connected to an upwardly inclined air inlet pipe (11).

6. A polyester chip dryer as described in claim 1, characterized in that: The feed inlet (9) is located on the top of the side wall of the drying chamber (1), and the top of the drying chamber (1) is a conical structure. The cone top of the conical structure is connected to the dust collector (10).

7. A polyester chip dryer as described in claim 1, characterized in that: The tilt angle of the guide plate (2) is between 30° and 75°.

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