Continuous drying device for polyester chips

Abstract

The invention belongs to the technical field of molding material pretreatment, and particularly relates to a polyester chip continuous drying device which comprises a drying rotary drum, a driving rotating mechanism, a first driving rotating mechanism, a second driving rotating mechanism, a first driving rotating mechanism, a second driving rotating mechanism, a first driving rotating mechanism, a second driving rotating mechanism and a second driving rotating mechanism, and the first driving rotating mechanism and the second driving rotating mechanism are arranged on two sides of the drying rotary drum respectively. And the driving rotating mechanism is arranged between the second support and the drying rotary drum and used for driving the drying rotary drum to rotate, and the drying uniformity of the polyester chip raw materials is improved. Continuous and uniform drying of polyester chips can be realized through rotation of the rotary drum, steam heating and real-time monitoring; meanwhile, dust generated by drying can be efficiently treated, cleanliness is maintained through water filtering and automatic water supplementing and pollution discharging, and equipment blockage and environmental influence are reduced; and the overall efficiency is improved through automatic control, safety and environmental protection are guaranteed, and the maintenance cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of pre-treatment of molding materials, in particular to a polyester chip continuous drying device. BACKGROUND

[0002] As a kind of hydrophilic material, polyester chip contains polar groups in its molecular structure, which makes it easy to absorb moisture in the environment. In the subsequent spinning process, when water-containing chips are melted and spun, bubbles will be generated due to water vaporization, resulting in defects such as broken ends and loose threads in the spinning line, which seriously affects the continuity of spinning and the quality of finished products. Therefore, polyester chips must be strictly dried before use to remove moisture, such as the continuous drying machine suitable for high shrinkage polyester chips and its manufacturing technology disclosed in publication number CN101270955A.

[0003] However, in the existing drying device, due to the uneven distribution of chips in the drying cavity and uneven heating, there are differences in the heating and dehydration degree of polyester chips in different areas, and the drying uniformity is difficult to guarantee. Some chips have excessive moisture, while some chips are brittle due to excessive drying, affecting the subsequent processing performance. In addition, the friction and collision between polyester chips during drying will generate a large amount of dust. If these dusts are not removed in time, they will circulate and accumulate inside the device, adhere to the wall of the drying cavity, reduce the heat exchange efficiency, increase the energy consumption and cleaning burden of the equipment, and at the same time, the floating dusts may also pollute the operating environment and harm the health of the operators.

[0004] Therefore, a polyester chip continuous drying device is proposed. SUMMARY

[0005] The purpose of the present application is to provide a polyester chip continuous drying device to solve the above problems.

[0006] To achieve the above purpose, the following technical scheme is adopted: a polyester chip continuous drying device, comprising a drying drum, the two sides of the drying drum are respectively provided with a first support and a second support, the drying drum is rotatably arranged between the first support and the second support, further comprising: A driving rotation mechanism is arranged between the second support and the drying drum, which is used to drive the rotation of the drying drum to improve the drying uniformity of polyester chip raw materials; A dust removal mechanism is arranged on one side of the drying drum, the dust removal mechanism is connected with the drying drum, and the dust removal mechanism is used to extract and treat the dust generated inside the drying drum; A cooling mechanism is arranged on the side of the dust removal mechanism away from the drying drum, the cooling mechanism is connected with the dust removal mechanism, and the cooling mechanism is used to cool the clean gas treated inside the dust removal mechanism. The PLC controller is fixedly mounted on the side wall of the second support, and the drive rotation mechanism, dust removal mechanism and cooling mechanism are all electrically connected to the PLC controller.

[0007] Preferably, the top of the drying drum is fixedly provided with an inlet / outlet pipe, the side wall of the drying drum is provided with a steam chamber, the drying drum is inclinedly disposed between the first support and the second support, the top of the first support is fixedly provided with a first mounting seat, the inside of the first mounting seat is fixedly provided with a steam pipe, one end of the steam pipe is fixedly connected to the side wall of the drying drum, and the steam pipe communicates with the steam chamber, the top of the second support is fixedly provided with a second mounting seat, the side wall of the second mounting seat is rotatably provided with a rotating pipe, one end of the rotating pipe is fixedly connected to the drying drum. One end of the rotating tube extends into the interior of the drying drum. A first dust removal tube passes through the interior of the rotating tube, and the outer wall of the first dust removal tube is rotatably connected to the inner wall of the rotating tube in a sealed manner. One end of the first dust removal tube extends into the interior of the drying drum and is curved upwards. A detection mechanism is provided at the curved end of the first dust removal tube. A first electromagnetic switch valve and a nitrogen pipe are fixedly provided at the end of the first dust removal tube located outside the drying drum. The nitrogen pipe is located between the second mounting base and the first electromagnetic switch valve, and a second electromagnetic switch valve is fixedly provided on the wall of the nitrogen pipe.

[0008] Preferably, the inner wall of the drying drum is fixedly embedded with a plurality of uniformly distributed annular electrodes, and the surface of the annular electrodes is coated with a wear-resistant reinforcing layer.

[0009] Preferably, the detection mechanism includes a fixed rod fixedly disposed on the outer wall of the first dust removal pipe, the lower end of the fixed rod extending downward and fixedly provided with an installation sleeve, and a wear-resistant temperature sensor and a wear-resistant moisture sensor respectively fixedly embedded on both sides of the installation sleeve.

[0010] Preferably, the drive rotation mechanism includes a drive motor fixedly disposed inside the second support, the output shaft of the drive motor is fixedly provided with a small gear, the tube wall of the rotating tube is fixedly provided with a large gear, and the small gear and the large gear are meshed together.

[0011] Preferably, the dust removal mechanism includes a dust removal bucket, a second dust removal pipe is fixedly provided on the top of the dust removal bucket, one end of the second dust removal pipe is fixedly connected to one end of the first dust removal pipe, a sewage discharge pipe is fixedly provided on the bottom of the dust removal bucket, and an electric sewage discharge valve is fixedly provided on the pipe wall of the sewage discharge pipe, a clean water addition pipe is fixedly provided on the top of the side wall of the dust removal bucket, and an electric water addition valve is fixedly provided on the pipe wall of the clean water addition pipe, and a turbidity sensor is fixedly provided on the bottom of the outer side wall of the dust removal bucket.

[0012] Preferably, the end of the second dust removal pipe away from the first dust removal pipe extends to the bottom of the dust removal bucket and is fixedly provided with a hollow air distribution plate, and the lower surface of the hollow air distribution plate is provided with a plurality of evenly distributed air distribution holes.

[0013] Preferably, the cooling mechanism includes a cooling tank, a connecting pipe is fixedly provided between the top of the cooling tank and the top of the dust removal tank, a serpentine cooling pipe is fixedly provided inside the cooling tank, the input end and output end of the serpentine cooling pipe both extend to the outside of the cooling tank, and a vacuum connection pipe is fixedly provided at the bottom of the side wall of the cooling tank.

[0014] Compared with existing technologies, the advantages of this invention are as follows: 1. Through the equipped drive rotation mechanism, steam heating and detection mechanism, continuous and uniform drying of polyester chips is achieved. The tilting and rotation of the drying drum keeps the chips turning, and the stable heat conduction in the steam chamber avoids local overheating or uneven drying. The detection mechanism monitors the temperature and moisture content of the chips in real time. The data is fed back to the PLC controller for precise adjustment of heating parameters to ensure that the drying process is continuous and efficient, and improves the stability of finished product quality.

[0015] 2. Through the dust removal mechanism, the negative pressure generated by the vacuum pump introduces the dust gas into the dust removal bucket. The gas is dispersed into bubbles through the air distribution holes of the hollow air distribution plate and fully contacts the water. The dust is captured and settled by the water. The turbidity sensor monitors the water quality in real time. The electric water filling valve and electric sewage discharge valve automatically replenish water and discharge sewage to maintain the filtration effect, avoid dust accumulation and blockage of equipment or pollution of the environment, and reduce maintenance costs.

[0016] 3. The cooling mechanism can process the clean gas. After dust removal, the clean gas enters the cooling tank and is fully cooled through the serpentine cooling pipe, which avoids damage to equipment such as vacuum pumps caused by high-temperature gas and extends the service life of the equipment. At the same time, the cooling gas reduces the thermal impact on the operating environment when it is discharged, making the entire drying process more in line with safety and environmental protection requirements. Attached Figure Description

[0017] Figure 1 This is a first-view perspective perspective view of a continuous polyester chip drying device provided by the present invention; Figure 2 This is a perspective view from a second angle of a continuous polyester chip drying device provided by the present invention; Figure 3 This is a perspective view of the drying drum of a continuous polyester chip drying device provided by the present invention after it has been cut open. Figure 4 This is a perspective view of the detection mechanism of a continuous polyester chip drying device provided by the present invention; Figure 5This is a perspective view of the dust removal mechanism and cooling mechanism of a continuous polyester chip drying device provided by the present invention.

[0018] In the diagram: 1 Drying drum, 2 First support, 3 Second support, 4 Drive rotation mechanism, 41 Drive motor, 42 Small gear, 43 Large gear, 5 Dust removal mechanism, 51 Dust removal bucket, 52 Second dust removal pipe, 53 Sewage discharge pipe, 54 Electric sewage discharge valve, 55 Clean water pipe, 56 Electric water valve, 57 Turbidity sensor, 58 Hollow air distribution plate, 59 Air distribution hole, 6 Cooling mechanism, 61 Cooling bucket, 62 Connecting pipe, 63 Serpentine cooling pipe, 64 Vacuum connection pipe, 7 PLC controller, 8 Inlet and outlet pipes, 9 Steam chamber, 10 First mounting base, 11 Steam pipe, 12 Second mounting base, 13 Rotating pipe, 14 First dust removal pipe, 15 Detection mechanism, 151 Fixing rod, 152 Mounting sleeve, 153 Wear-resistant temperature sensor, 154 Wear-resistant moisture sensor, 16 First electromagnetic switch valve, 17 Nitrogen pipe, 18 Second electromagnetic switch valve, 19 Ring electrode. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] like Figures 1-5 As shown, a continuous drying device for polyester chips includes a drying drum 1, with a first support 2 and a second support 3 respectively provided on both sides of the drying drum 1. The drying drum 1 is rotatably disposed between the first support 2 and the second support 3. The device also includes: A feed pipe 8 is fixedly installed on the top of the drying drum 1. A steam chamber 9 is provided on the side wall of the drying drum 1. The drying drum 1 is inclinedly arranged between the first support 2 and the second support 3. A first mounting base 10 is fixedly installed on the top of the first support 2. A steam pipe 11 is fixedly installed inside the first mounting base 10. One end of the steam pipe 11 is fixedly connected to the side wall of the drying drum 1 and communicates with the steam chamber 9. The other end of the steam pipe 11 is connected to an external steam generator. A second mounting base 12 is fixedly installed on the top of the second support 3. A rotating pipe 13 is rotatably installed on the side wall of the second mounting base 12. One end of the rotating pipe 13 is connected to the drying drum 1. The drying drum 1 is fixedly connected, and one end of the rotating tube 13 extends into the interior of the drying drum 1. A first dust removal tube 14 passes through the interior of the rotating tube 13, and the outer wall of the first dust removal tube 14 is rotatably connected to the inner wall of the rotating tube 13 in a sealed manner. A sealed bearing can be used as a sealing element to prevent dust and gas from being discharged into the air through the gap. One end of the first dust removal tube 14 extends into the interior of the drying drum 1 and is curved upwards. This curved design prevents polyester chip raw materials inside the drying drum 1 from entering the interior of the first dust removal tube 14. A detection mechanism 15 is provided at the curved end of the first dust removal tube 14. The first dust removal tube 14 is located at... A first electromagnetic switch valve 16 and a nitrogen pipe 17 are fixedly installed at one end of the outside of the drying drum 1. The nitrogen pipe 17 is located between the second mounting base 12 and the first electromagnetic switch valve 16, and a second electromagnetic switch valve 18 is fixedly installed on the wall of the nitrogen pipe 17. One end of the nitrogen pipe 17 is connected to an external nitrogen storage tank. A plurality of evenly distributed annular electrodes 19 are fixedly embedded in the inner side wall of the drying drum 1, and the surface of the annular electrodes 19 is sprayed with a wear-resistant reinforcing layer (such as a tungsten carbide coating with a thickness of 0.1-0.3 mm, which can reduce the wear of the annular electrodes 19). The detection mechanism 15 includes a device fixedly installed on the outer wall of the first dust removal pipe 14. A fixing rod 151 is provided, with its lower end extending downward and fixedly fitted with a mounting sleeve 152. Wear-resistant temperature sensors 153 and wear-resistant moisture sensors 154 are respectively fixedly embedded on both sides of the mounting sleeve 152. When the drying drum 1 rotates, the wear-resistant temperature sensors 153 and wear-resistant moisture sensors 154 are always located in the middle of the drying drum 1. During the turning process of the polyester chip raw material, the temperature and moisture content of the polyester chip raw material can be detected in real time. The use of wear-resistant temperature sensors 153 and wear-resistant moisture sensors 154 can avoid impact wear on the polyester chip raw material during the turning process and extend its service life.

[0021] A drive rotation mechanism 4 is disposed between the second support 3 and the drying drum 1. The drive rotation mechanism 4 is used to drive the drying drum 1 to rotate, thereby improving the drying uniformity of the polyester chip raw material. The drive rotation mechanism 4 includes a drive motor 41 fixedly disposed inside the second support 3. A small gear 42 is fixedly disposed on the output shaft of the drive motor 41, and a large gear 43 is fixedly disposed on the tube wall of the rotating tube 13. The small gear 42 and the large gear 43 are meshed. When the drive motor 41 is running, it can drive the small gear 42 to rotate. The small gear 42 and the large gear 43 mesh and transmit power. The large gear 43 drives the drying drum 1 to rotate between the first support 2 and the second support 3 synchronously through the rotating tube 13. The rotation of the drying drum 1 causes the polyester chip raw material inside to be continuously turned over.

[0022] A dust removal mechanism 5 is located on one side of the drying drum 1. The dust removal mechanism 5 is connected to the drying drum 1 and is used to extract and process the dust generated inside the drying drum 1. The dust removal mechanism 5 includes a dust collection bin 51. A second dust collection pipe 52 is fixedly installed on the top of the dust collection bin 51, with one end of the second dust collection pipe 52 fixedly connected to one end of the first dust collection pipe 14. A wastewater discharge pipe 53 is fixedly installed at the bottom of the dust collection bin 51, and an electric wastewater discharge valve 54 is fixedly installed on the wall of the wastewater discharge pipe 53. A clean water addition pipe 55 is fixedly installed on the top of the side wall of the dust collection bin 51, and an electric water addition valve 56 is fixedly installed on the wall of the clean water addition pipe 55. A turbidity sensor is fixedly installed on the bottom of the outer side wall of the dust collection bin 51. The device 57 and the turbidity sensor 57 can detect the water quality inside the dust collector 51 in real time. The end of the second dust collector 52 away from the first dust collector 14 extends to the bottom of the dust collector 51 and is fixedly provided with a hollow air distribution plate 58. The lower surface of the hollow air distribution plate 58 has a plurality of evenly distributed air distribution holes 59. First, the electric water valve 56 is opened to introduce the dust removal water into the dust collector 51. The water needs to cover the hollow air distribution plate 58 to a certain height. The dust gas can be sucked into the first dust collector 14 and the second dust collector 52. Through the evenly distributed air distribution holes 59 on the hollow air distribution plate 58, it is evenly blown into the water at the bottom of the dust collector 51 and forms bubbles, which can perform dust removal treatment.

[0023] Cooling mechanism 6 is located on the side of dust removal mechanism 5 away from drying drum 1. Cooling mechanism 6 is connected to dust removal mechanism 5 and is used to cool down the clean gas processed inside dust removal mechanism 5. Cooling mechanism 6 includes cooling tank 61. A connecting pipe 62 is fixed between the top of cooling tank 61 and the top of dust removal tank 51. A serpentine cooling pipe 63 is fixed inside cooling tank 61. The inlet and outlet ends of serpentine cooling pipe 63 extend to the outside of cooling tank 61. Cooling water is introduced through one end of serpentine cooling pipe 63, and the other end of serpentine cooling pipe 63 can discharge cooling water outward. It can cool down the clean gas entering the cooling tank 61. The contact area between serpentine cooling pipe 63 and clean gas is large. A vacuum pipe 64 is fixed at the bottom of the side wall of cooling tank 61. One end of vacuum pipe 64 is connected to an external vacuum pump.

[0024] The PLC controller 7 is fixedly mounted on the side wall of the second support 3. The drive rotation mechanism 4, dust removal mechanism 5 and cooling mechanism 6 are all electrically connected to the PLC controller 7.

[0025] The operating principle of this invention is described as follows: First, the operator opens the cover of the feed pipe 8 and puts the polyester chip raw material into the drying drum 1 through the feed pipe 8. Then, the power supply of the device is turned on and the PLC controller 7 is operated to close the first electromagnetic switch valve 16 and open the second electromagnetic switch valve 18, so that the nitrogen in the nitrogen pipe 17 is introduced into the drying drum 1 through the first dust removal pipe 14 (the nitrogen pipe 17 is connected to the external nitrogen storage tank). The nitrogen forms an airflow in the drying drum 1, which gradually discharges the internal air from the feed pipe 8, thereby reducing the oxygen and moisture content in the drying drum 1. This process, through the replacement effect of nitrogen (which can be replaced multiple times), reduces the oxygen concentration in the drying drum 1 to an extremely low level, providing a safe basis for subsequent drying. After the air inside the drying drum 1 is expelled, the operator tightens the caps of the inlet and outlet pipes 8 and operates the PLC controller 7 again to switch the valve status, opening the first solenoid switch valve 16 and closing the second solenoid switch valve 18, so that the drying drum 1, dust collector 51 and cooling tank 61 are connected. Then, the external vacuum pump is started to completely extract the air from the drying drum 1, dust collector 51 and cooling tank 61 until the drying drum 1, dust collector 51 and cooling tank 61 reach the target vacuum level (e.g., ≤-0.09MPa). In a near-oxygen-free vacuum environment, the oxidation and deterioration of polyester chips due to high temperature during the drying process can be effectively avoided, and the risk of impurities being mixed in is reduced. After completing the above preparations, the staff started the steam generator connected to the steam pipe 11 through the PLC controller 7. The high-temperature steam entered the steam chamber 9 jacket of the drying drum 1 along the pipe. The steam released heat in the steam chamber 9 and was conducted to the internal polyester chips through the wall of the drying drum 1 to achieve heating and drying. The condensate formed after the steam condensed flowed back through the inner wall of the steam pipe 11 and was discharged along the rotation direction of the drying drum 1. This not only prevented the condensate from accumulating in the steam chamber 9 and affecting the heat transfer efficiency, but also maintained a stable heating temperature through continuous steam replenishment. At the same time, the PLC controller 7 starts the drive motor 41, which drives the small gear 42 to rotate. The small gear 42 meshes with the large gear 43 for transmission. The large gear 43 drives the drying drum 1 to rotate between the first support 2 and the second support 3 through the rotating tube 13. The rotation of the drying drum 1 causes the polyester chip raw material inside to be continuously turned over. The polyester chip raw material that was originally piled up at the bottom can periodically contact the inner wall of the drying drum 1, ensuring that each piece of polyester chip raw material can be heated evenly, avoiding local overheating due to prolonged contact with the high-temperature wall surface, and accelerating the evaporation rate of the moisture inside the polyester chip raw material. During the rotary drying process, the annular electrode 19 on the inner wall of the drying drum 1 generates current after being powered on, forming a weak electric field. Under the action of the electric field, the static electricity on the surface of the polyester chip raw material is neutralized, reducing the electrostatic adsorption phenomenon caused by the mutual friction of the polyester chip raw material. This not only avoids uneven heating caused by the polyester chip raw material clumping due to static electricity, but also prevents fine dust from adhering to the inner wall of the drying drum 1 due to static electricity, ensuring that the polyester chip raw material particles are evenly dispersed after drying. At the same time, it reduces the risk of equipment blockage caused by dust in subsequent processing. In practical applications, the parameters of the annular electrode 19 (36V, ≤100μA, ≤500V / m) are within the safe range, which meets the insulation characteristics and processing requirements of polyester chips. The annular electrode 19 only acts on the static electricity on the surface of the polyester chip raw material and will not cause the polyester chip raw material to conduct electricity. After parameter optimization and performance verification, it can be ensured that there is no negative impact on the molecular structure and spinning performance of the chips. The wear-resistant temperature sensor 153 and the wear-resistant moisture sensor 154 are always located in the middle of the drying drum 1. During the turning process of the polyester chip raw material, the temperature and moisture content of the polyester chip raw material can be detected in real time. The wear-resistant temperature sensor 153 and the wear-resistant moisture sensor 154 then send the detected data to the PLC controller 7. The PLC controller 7 controls the power of the steam generator according to the temperature data, thereby accurately controlling the heating temperature and drying time and improving the drying efficiency. Meanwhile, during the rotary drying process, a large amount of dust gas is generated inside the drying drum 1 due to the tumbling and friction of the polyester chip raw material. Due to the continuous operation of the vacuum pump, a stable negative pressure is formed inside the drying drum 1. Driven by the pressure difference, the dust gas is sequentially drawn into the first dust removal pipe 14 and the second dust removal pipe 52. When the dust gas reaches the lower end of the second dust removal pipe 52, it is evenly blown into the water at the bottom of the dust removal bucket 51 through the evenly distributed air holes 59 on the hollow air distribution plate 58 and forms bubbles. During the rising process of the bubbles, the dust particles are captured by their own gravity and the adhesion of the water. Larger particles directly settle to the bottom of the dust removal bucket 51, while fine dust forms a suspension in the water. At the same time, the disturbance of the water flow causes the bubbles to continuously break and merge, further increasing the contact area between the dust and the water and improving the filtration efficiency. During the dust removal process, the turbidity of the water inside the dust removal bucket 51 gradually increases. The turbidity sensor 57 monitors the water quality in real time and sends the detected data to the PLC controller 7. The PLC controller 7 controls the electric water filling valve 56 and the electric sewage discharge valve 54 to open accordingly. Automatic water replenishment and sewage discharge are completed through the clean water pipe 55 and the sewage discharge pipe 53 to maintain the filtration effect on dust gas. The clean gas, after being filtered by the water, enters the cooling tank 61 through the connecting pipe 62. The serpentine cooling pipe 63 inside the cooling tank 61 exchanges heat fully with the clean gas by introducing a low-temperature medium (such as cooling water), causing the temperature of the clean gas to gradually decrease. The cooled clean gas is then safely discharged by the vacuum pump through the vacuum pipe 64. The entire dust removal and cooling process forms a closed loop, improving the cleanliness of the production environment. In addition, the medium after heat exchange has a high temperature (usually reaching 60-80℃), which can be used for heat recovery and utilization (for example, the high-temperature medium can be used to preheat the water inlet of the steam generator to reduce the energy consumption required for steam preparation, or it can be connected to the workshop heating pipes to replace part of the conventional heat source).

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A continuous drying apparatus for polyester chips, comprising a drying drum (1), wherein a first support (2) and a second support (3) are respectively provided on both sides of the drying drum (1), and the drying drum (1) is rotatably disposed between the first support (2) and the second support (3), characterized in that, Also includes: A drive rotation mechanism (4) is disposed between the second support (3) and the drying drum (1), and the drive rotation mechanism (4) is used to drive the drying drum (1) to rotate; A dust removal mechanism (5) is provided on one side of the drying drum (1). The dust removal mechanism (5) is connected to the drying drum (1) and is used to extract and process the dust generated inside the drying drum (1). A cooling mechanism (6) is located on the side of the dust removal mechanism (5) away from the drying drum (1). The cooling mechanism (6) is connected to the dust removal mechanism (5) and is used to cool down the clean gas processed inside the dust removal mechanism (5). The PLC controller (7) is fixedly mounted on the side wall of the second support (3), and the drive rotation mechanism (4), dust removal mechanism (5) and cooling mechanism (6) are all electrically connected to the PLC controller (7).

2. The continuous drying apparatus for polyester chips according to claim 1, characterized in that, The top of the drying drum (1) is fixedly provided with an inlet / outlet pipe (8), and the side wall of the drying drum (1) is provided with a steam chamber (9). The drying drum (1) is inclinedly arranged between the first support (2) and the second support (3). The top of the first support (2) is fixedly provided with a first mounting seat (10), and the inside of the first mounting seat (10) is fixedly provided with a steam pipe (11). One end of the steam pipe (11) is fixedly connected to the side wall of the drying drum (1), and the steam pipe (11) is connected to the steam chamber (9). The top of the second support (3) is fixedly provided with a second mounting seat (12), and the side wall of the second mounting seat (12) is rotatably provided with a rotating pipe (13). One end of the rotating pipe (13) is fixedly connected to the drying drum (1), and the rotating pipe (13) is rotatably connected to the side wall of the drying drum (1). One end of the rotating tube (13) extends into the interior of the drying drum (1). A first dust removal tube (14) is installed inside the rotating tube (13), and the outer wall of the first dust removal tube (14) is sealed and rotatably connected to the inner wall of the rotating tube (13). One end of the first dust removal tube (14) extends into the interior of the drying drum (1) and is set to be curved upward. A detection mechanism (15) is provided at the curved end of the first dust removal tube (14). A first electromagnetic switch valve (16) and a nitrogen pipe (17) are fixedly provided at the end of the first dust removal tube (14) located outside the drying drum (1). The nitrogen pipe (17) is located between the second mounting base (12) and the first electromagnetic switch valve (16), and a second electromagnetic switch valve (18) is fixedly provided on the pipe wall of the nitrogen pipe (17).

3. The continuous drying apparatus for polyester chips according to claim 2, characterized in that, The inner wall of the drying drum (1) is fixedly embedded with a plurality of uniformly distributed annular electrodes (19), and the surface of the annular electrodes (19) is coated with a wear-resistant strengthening layer.

4. The continuous drying apparatus for polyester chips according to claim 2, characterized in that, The detection mechanism (15) includes a fixed rod (151) fixedly installed on the outer wall of the first dust removal pipe (14). The lower end of the fixed rod (151) extends downward and is fixedly provided with an installation sleeve (152). Wear-resistant temperature sensor (153) and wear-resistant moisture sensor (154) are respectively fixedly embedded on both sides of the installation sleeve (152).

5. A continuous polyester chip drying apparatus according to claim 2, characterized in that, The drive rotation mechanism (4) includes a drive motor (41) fixedly installed inside the second support (3). The output shaft of the drive motor (41) is fixedly provided with a small gear (42), and the wall of the rotating tube (13) is fixedly provided with a large gear (43). The small gear (42) and the large gear (43) are meshed together.

6. The continuous drying apparatus for polyester chips according to claim 1, characterized in that, The dust removal mechanism (5) includes a dust removal bucket (51), a second dust removal pipe (52) is fixedly provided on the top of the dust removal bucket (51), one end of the second dust removal pipe (52) is fixedly connected to one end of the first dust removal pipe (14), a sewage discharge pipe (53) is fixedly provided at the bottom of the dust removal bucket (51), and an electric sewage discharge valve (54) is fixedly provided on the pipe wall of the sewage discharge pipe (53), a water filling pipe (55) is fixedly provided on the top of the side wall of the dust removal bucket (51), and an electric water filling valve (56) is fixedly provided on the pipe wall of the water filling pipe (55), and a turbidity sensor (57) is fixedly provided on the bottom of the outer side wall of the dust removal bucket (51).

7. A continuous polyester chip drying apparatus according to claim 6, characterized in that, The second dust removal pipe (52) extends to the bottom of the dust removal bucket (51) at one end away from the first dust removal pipe (14) and is fixedly provided with a hollow air distribution plate (58). The lower surface of the hollow air distribution plate (58) is provided with a plurality of evenly distributed air distribution holes (59).

8. A continuous polyester chip drying apparatus according to claim 6, characterized in that, The cooling mechanism (6) includes a cooling tank (61), a connecting pipe (62) is fixedly provided between the top of the cooling tank (61) and the top of the dust removal tank (51), a serpentine cooling pipe (63) is fixedly provided inside the cooling tank (61), the input end and the output end of the serpentine cooling pipe (63) extend to the outside of the cooling tank (61), and a vacuum pipe (64) is fixedly provided at the bottom of the side wall of the cooling tank (61).

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