Heavy denier polyester industrial yarn and processing apparatus thereof
A technology of polyester industrial yarn and processing device, which is applied in the field of polyester processing, can solve the problems of polyester industrial yarn production, unstable quality indicators, inability to process heavy denier, etc., and achieves stable quality, good product quality stability, and high production efficiency. Effect
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[0037] Example 1: 12-end spinning 5000D high-strength polyester industrial yarn
[0038] (1) Solid phase viscosity increase:
[0039] Use bright polyester chips with an intrinsic viscosity of 0.64~0.69dl / g, transport them to the crystallizer, after 180℃ hot air crystallization, the chips will be introduced into the solid phase polymerization tower through the reversing valve, and the temperature will be 200-220℃ After 30-38 hours, high-viscosity polyester chips with an intrinsic viscosity of 0.95-1.05dl / g are obtained.
[0040] (2) Multi-end spinning:
[0041] Combine figure 1 with figure 2 , The tackified high-viscosity polyester chips are transported to the pre-spinning silo 1, and are melted by the spinning screw of the screw extruder 2. Each spinning position uses 12 spinning positions, and the spinning box body 3 temperature 290~300℃, the melt is measured and filtered by a metering pump and sprayed out from the spinneret. After passing through a slow cooling zone with a height ...
Example Embodiment
[0050] Example 2: 12-end spinning 6000D heavy-denier polyester industrial yarn
[0051] The configuration and working principle of this embodiment are the same as that of embodiment 1, except that:
[0052] (1) Solid phase viscosity increase:
[0053] Use bright polyester chips with an intrinsic viscosity of 0.64~0.69dl / g, transport them to the crystallizer, after 180℃ hot air crystallization, the chips will be introduced into the solid phase polymerization tower through the reversing valve, and the temperature will be 200-220℃ After 30-38 hours, high-viscosity polyester chips with an intrinsic viscosity of 0.90-1.10dl / g are obtained.
[0054] (2) Multi-end spinning:
[0055] The solid-phase tackified melt is transported to each spinning screw. The heating temperature is 285-298℃, and the spinning box temperature is 290-300℃. Each spinning position contains a parallel spinning box. The body is equipped with 4 planetary pumps. The planetary pump contains 1 melt inlet and 3 melt outlets...
Example Embodiment
[0060] Example 3: 12 ends spinning 4500D heavy-denier polyester industrial yarn
[0061] The configuration and working principle of this embodiment are the same as that of embodiment 1, except that:
[0062] (1) Solid phase viscosity increase:
[0063] Use bright polyester chips with an intrinsic viscosity of 0.64~0.69dl / g, transport them to the crystallizer, after 180℃ hot air crystallization, the chips will be introduced into the solid phase polymerization tower through the reversing valve, and the temperature will be 200-220℃ After 30-38 hours, high-viscosity polyester chips with an intrinsic viscosity of 0.90-1.10dl / g are obtained.
[0064] (2) Multi-end spinning:
[0065] The solid-phase tackified melt is transported to each spinning screw. The heating temperature is 285-298℃, and the spinning box temperature is 290-300℃. Each spinning position contains a parallel spinning box. The body is equipped with 4 planetary pumps. The planetary pump contains 1 melt inlet and 3 melt outlet...
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