Polyester chip agglomerated product drying equipment for PET (Polyethylene Terephthalate) film production line

Abstract

The utility model discloses polyester chip agglomerated product drying equipment for a PET (polyethylene terephthalate) film production line, which relates to the technical field of drying equipment and comprises a drying bin, a control panel is fixedly connected to the surface of the drying bin, four supporting legs are connected to the bottom surface of the drying bin in a height manner, and a stirring mechanism for stirring and guiding air is rotatably connected to the inside of the drying bin. The control panel controls the motor and the high-temperature fan to be started at the same time, the motor drives the dispersing pipes to stir polyester chip crystals through the hollow pipes, and when the polyester chip crystals are stirred, high-temperature hot air of the high-temperature fan is guided to the hollow pipes through the air guide pipes and dispersed to the dispersing pipes through the hollow pipes; and the hot air can be guided to the upper layer, the middle layer and the lower layer of the polyester chip crystals through the dispersion pipes designed in a layered mode, sufficient heating and drying are achieved, and the technical problem that drying is uneven when existing drying equipment dries the polyester chip crystals is solved.

Description

Technical Field

[0001] This utility model relates to the field of drying equipment technology, and in particular to a drying equipment for polyester chips used in PET film production lines. Background Technology

[0002] Polyester chip crystallization is a key intermediate product in the polyester production process, and its degree and quality of crystallization directly affect the performance of subsequent polyester products. In the polyester industry chain, crystalline polyester chips are widely used in numerous fields, such as packaging materials, electronics, and automobile manufacturing. Especially in PET film production lines, high-quality crystalline polyester chips play a crucial role in ensuring the physical, optical, and processing properties of the film.

[0003] Currently, the manufacturing process of polyester chip crystallization products typically includes raw material preparation, polymerization reaction, melt treatment, casting and pelletizing, crystallization, drying and post-packaging.

[0004] Currently, the drying process of existing polyester chip crystallization products requires the use of drying equipment, and most of the existing drying equipment is manufactured using the following technologies;

[0005] Hot air circulation technology heats air and circulates it within the drying equipment. The hot air comes into full contact with the polyester chips, removing moisture from the chips and thus achieving the purpose of drying.

[0006] Vacuum drying technology uses a vacuum pump to extract air from the drying chamber, reduce the pressure, and cause the moisture to vaporize at a lower temperature, thereby drying the polyester chips.

[0007] Microwave drying technology uses microwave radiation to heat polyester chips, causing water molecules inside the chips to vibrate violently under the action of the microwave electromagnetic field, generating heat, thereby achieving rapid evaporation and drying of moisture.

[0008] Freeze-drying technology involves freezing polyester chips at low temperatures, causing the moisture to condense into ice, and then heating them under vacuum conditions to directly change the ice from a solid to a gaseous state, thus achieving drying. This drying method can preserve the original structure and properties of the polyester chips to the greatest extent.

[0009] Currently, existing polyester chip crystallization and drying equipment manufactured using hot air circulation technology has been found to have at least the following problems in actual use;

[0010] In most existing drying equipment, the hot air is blown at only one angle towards the polyester chip crystals. The polyester chip crystals located above are fully heated and dried, while the polyester chip crystals located below are only affected by less hot air, resulting in uneven drying. Utility Model Content

[0011] To address the shortcomings of existing technologies, this utility model provides a polyester chip drying device for PET film production lines, which solves the problem of uneven drying when drying polyester chip crystals in existing drying equipment.

[0012] To achieve the above objectives, this utility model provides the following technical solution:

[0013] A drying device for polyester chips used in a PET film production line includes a drying chamber, a control panel fixedly connected to the surface of the drying chamber, four support legs connected to the bottom of the drying chamber, a stirring mechanism for stirring and air guiding rotatably connected inside the drying chamber, and a drying mechanism for drying outside the drying chamber, the drying mechanism including a high-temperature fan, the stirring mechanism including a motor, and the motor electrically connected to the control panel.

[0014] Preferably, the top of the drying chamber is fixedly connected to a feed inlet, the feed inlet is fitted with a cover, and the cover has a vent hole for ventilation at its axis.

[0015] Preferably, a discharge pipe is fixedly connected to the bottom of the drying chamber, and an electromagnetic discharge valve is fixedly installed in the middle section of the discharge pipe. The electromagnetic discharge valve is electrically connected to the control panel.

[0016] Preferably, an L-shaped mounting plate is fixedly connected to the bottom of the drying chamber, the motor is fixedly mounted on the L-shaped mounting plate, the output shaft of the motor is fixedly connected to a hollow tube, the end of the hollow tube away from the motor is rotatably connected to the top surface of the drying chamber and has a circular hole, and the end of the hollow tube close to the motor is rotatably connected to the bottom surface of the drying chamber.

[0017] Preferably, the bottom of the hollow tube is fixedly connected to two arc-shaped scrapers, both of which are in contact with the inner bottom surface of the drying chamber. Several dispersion tubes are fixedly connected to the surface of the hollow tube, and several air outlets are opened on the surface of the dispersion tubes. A baffle net is provided on the surface of the air outlets. The gaps in the baffle net are smaller than the diameter of the polyester chip crystals. The dispersion tubes are connected to the hollow tube to disperse the hot air and can be driven by the hollow tube to stir the polyester chip crystals, thus breaking up the polyester chip crystals for easy and thorough heating and drying. The air outlets are used to discharge the hot air to the polyester chip crystals.

[0018] Preferably, the high-temperature fan is electrically connected to the control panel, and the air outlet of the high-temperature fan is fixedly connected to an air guide pipe. The end of the air guide pipe away from the high-temperature fan is rotatably connected to the end of the hollow tube with a circular groove.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] I. This application, by setting up a stirring mechanism and a drying mechanism, places polyester chip crystals into the drying chamber through the feed inlet, then closes the lid, and controls the simultaneous start of the motor and high-temperature fan via the control panel. The motor drives the dispersion tube through the hollow tube to stir the polyester chip crystals. While stirring the polyester chip crystals, the high-temperature hot air from the high-temperature fan is guided to the hollow tube through the air guide pipe, dispersed to each dispersion tube through the hollow tube, and finally discharged to the polyester chip crystals through each air outlet. The layered design of each dispersion tube can guide the hot air to the upper, middle and lower layers of the polyester chip crystals, achieving full heating and drying, thus solving the technical problem of uneven drying when drying polyester chip crystals in existing drying equipment.

[0021] Second, this application can not only be used for drying, but also the drying mechanism can be turned off and the stirring mechanism can perform a separate stirring and mixing action, so that this application has the effect of multiple uses and has high applicability. Attached Figure Description

[0022] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a side view of the overall structure of the device of this utility model;

[0025] Figure 3 This is a top view of the internal structure of the drying chamber of this utility model;

[0026] Figure 4 This is a structural diagram of the stirring mechanism of this utility model.

[0027] Legend: 1. Drying chamber; 2. Stirring mechanism; 3. High-temperature fan; 101. Control panel; 102. Support leg; 103. Discharge pipe; 104. Electromagnetic discharge valve; 105. Feed inlet; 106. Cover; 107. L-shaped mounting plate; 108. Vent hole; 201. Motor; 202. Hollow tube; 203. Dispersion tube; 204. Air outlet; 205. Arc-shaped scraper; 301. Air guide pipe. Detailed Implementation

[0028] This application provides a drying device for polyester chips used in PET film production lines, which effectively solves the problem of uneven drying in existing drying equipment when drying polyester chip crystals.

[0029] Example

[0030] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the technical solution in this application embodiment effectively solves the technical problem of uneven drying when drying polyester chip crystals using existing drying equipment. The overall idea is as follows:

[0031] To address the problems existing in the prior art, this utility model provides a polyester chip drying device for PET film production lines, including a drying chamber 1. A control panel 101 is fixedly connected to the surface of the drying chamber 1. Four support legs 102 are connected to the bottom of the drying chamber 1. An agitation mechanism 2 for stirring and air guiding is rotatably connected inside the drying chamber 1. A drying mechanism for drying is provided outside the drying chamber 1. The drying mechanism includes a high-temperature fan 3. The agitation mechanism 2 includes a motor 201. The motor 201 is electrically connected to the control panel 101.

[0032] The top of the drying chamber 1 is fixedly connected to a feed inlet 105, and a cover 106 is fitted onto the feed inlet 105. A vent hole 108 for ventilation is opened at the axis of the cover 106.

[0033] A discharge pipe 103 is fixedly connected to the bottom of the drying chamber 1, and an electromagnetic unloading valve 104 is fixedly installed in the middle section of the discharge pipe 103. The electromagnetic unloading valve 104 is electrically connected to the control panel 101.

[0034] An L-shaped mounting plate 107 is fixedly connected to the bottom of the drying chamber 1. The motor 201 is fixedly mounted on the L-shaped mounting plate 107. A hollow tube 202 is fixedly connected to the output shaft of the motor 201. The end of the hollow tube 202 away from the motor 201 is rotatably connected to the top surface of the drying chamber 1 and has a circular hole. The end of the hollow tube 202 close to the motor 201 is rotatably connected to the bottom surface of the drying chamber 1.

[0035] Two arc-shaped scrapers 205 are fixedly connected to the bottom of the hollow tube 202. Both arc-shaped scrapers 205 are in contact with the inner bottom surface of the drying chamber 1. Several dispersion tubes 203 are fixedly connected to the surface of the hollow tube 202. Several air outlets 204 are opened on the surface of the dispersion tubes 203. A baffle net is provided on the surface of the air outlets 204. The gap of the baffle net is smaller than the diameter of the polyester chip crystals. The dispersion tubes 203 are connected to the hollow tube 202 to disperse hot air and can be driven by the hollow tube 202 to stir the polyester chip crystals. The dispersion tubes 203 disperse the polyester chip crystals to facilitate full heating and drying. The air outlets 204 are used to discharge hot air to the polyester chip crystals.

[0036] The high-temperature fan 3 is electrically connected to the control panel 101. The air outlet of the high-temperature fan 3 is fixedly connected to the air guide pipe 301. The end of the air guide pipe 301 away from the high-temperature fan 3 is rotatably connected to the end of the hollow tube 202 with a circular groove.

[0037] The equipment includes a stirring mechanism 2 and a drying mechanism. Polyester chip crystals are placed in the drying chamber 1 through the feed inlet 105, and then the cover 106 is closed. The control panel 101 controls the simultaneous start of the motor 201 and the high-temperature fan 3. The motor 201 drives the dispersion tube 203 through the hollow tube 202 to stir the polyester chip crystals. While stirring the polyester chip crystals, the high-temperature hot air from the high-temperature fan 3 is guided to the hollow tube 202 through the air guide 301, and then dispersed to each dispersion tube 203 through the hollow tube 202. Finally, it is discharged to the polyester chip crystals through each air outlet 204. The layered design of each dispersion tube 203 can guide the hot air to the upper, middle and lower layers of the polyester chip crystals, achieving full heating and drying. This solves the technical problem of uneven drying in existing drying equipment when drying polyester chip crystals.

[0038] Working principle:

[0039] The first step involves placing polyester chip crystals into the drying chamber 1 through the feed inlet 105, then covering it with the lid 106. The motor 201 and the high-temperature fan 3 are started simultaneously via the control panel 101. The motor 201 drives the dispersion tube 203 through the hollow tube 202 to stir the polyester chip crystals. While stirring the polyester chip crystals, the high-temperature hot air from the high-temperature fan 3 is guided to the hollow tube 202 through the air guide tube 301, and then dispersed to each dispersion tube 203 through the hollow tube 202. Finally, the air is discharged to the polyester chip crystals through each air outlet 204. The layered design of each dispersion tube 203 can guide the hot air to the upper, middle and lower layers of the polyester chip crystals, achieving full heating and drying.

[0040] In the second step, after the polyester chips are crystallized and dried, the control panel 101 controls the electromagnetic discharge valve 104 to be open. The polyester chip crystals are discharged from the discharge pipe 103 under the action of gravity. The arc-shaped structure of the arc scraper 205 can help the polyester chip crystals on the bottom surface of the drying chamber 1 flow to the discharge pipe 103 to realize the discharge operation.

[0041] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A drying device for polyester chips used in a PET film production line, comprising a drying chamber (1), wherein a control panel (101) is fixedly connected to the surface of the drying chamber (1), and four support legs (102) are connected to the bottom surface of the drying chamber (1), characterized in that, The drying chamber (1) is rotatably connected to a stirring mechanism (2) for stirring and air guiding, and the drying chamber (1) is provided with a drying mechanism for drying on the outside. The drying mechanism includes a high-temperature fan (3); The stirring mechanism (2) includes a motor (201); An L-shaped mounting plate (107) is fixedly connected to the bottom of the drying chamber (1). The motor (201) is fixedly mounted on the L-shaped mounting plate (107). A hollow tube (202) is fixedly connected to the output shaft of the motor (201). The end of the hollow tube (202) away from the motor (201) is rotatably connected to the top surface of the drying chamber (1) and has a circular hole. The end of the hollow tube (202) close to the motor (201) is rotatably connected to the bottom surface of the drying chamber (1). Two arc-shaped scrapers (205) are fixedly connected to the bottom of the hollow tube (202). Both arc-shaped scrapers (205) are pressed against the inner bottom surface of the drying chamber (1). A dispersion tube (203) is fixedly connected to the surface of the hollow tube (202). An air outlet (204) is opened on the surface of the dispersion tube (203).

2. The polyester chip drying equipment for a PET film production line as described in claim 1, characterized in that: The top of the drying chamber (1) is fixedly connected to a feed inlet (105), and a cover (106) is fitted onto the feed inlet (105). A vent hole (108) for ventilation is provided at the axial center of the cover (106).

3. The polyester chip drying equipment for a PET film production line as described in claim 2, characterized in that: The bottom of the drying chamber (1) is fixedly connected to a discharge pipe (103), and an electromagnetic discharge valve (104) is fixedly installed in the middle section of the discharge pipe (103).

4. The polyester chip drying equipment for a PET film production line as described in claim 3, characterized in that: The high-temperature fan (3) is electrically connected to the control panel (101). The air outlet of the high-temperature fan (3) is fixedly connected to the air guide pipe (301). The end of the air guide pipe (301) away from the high-temperature fan (3) is rotatably connected to the end of the hollow tube (202) with a circular groove.

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