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Preparation device for high-strength high-modulus polyethylene fiber spinning stock solution

A technology of polyethylene fiber and spinning dope, which is applied in spinning solution preparation, fiber treatment, filament forming treatment, etc., to achieve the effects of maintaining continuity, avoiding excessive proportion deviation, and ensuring quality

Pending Publication Date: 2018-08-24
河北和泰航天科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a high-strength high-modulus polyethylene fiber spinning dope preparation device to solve the existing above-mentioned problems

Method used

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  • Preparation device for high-strength high-modulus polyethylene fiber spinning stock solution
  • Preparation device for high-strength high-modulus polyethylene fiber spinning stock solution

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A high-strength high-modulus polyethylene fiber spinning dope preparation device, see figure 1 with figure 2 , which includes a spinning stock solution controller, a feeding kettle, a feeding kettle 2, a feeding pipe 4, an overflow pipe 5, a circulating kettle 3 and a circulating pump 6, wherein:

[0025] The feeding kettle is connected to the feeding kettle 2 through the feeding pipe 4, the first end of the overflow pipe 5 is connected to the feeding pipe 4, the second end of the overflow pipe 5 is connected to the feeding kettle 2, the circulating kettle 3 and the circulating The pumps 6 are all installed on the overflow pipe 5, the control end of the circulating pump 6 is connected with the spinning stock solution controller signal, and the overflow pipe 5, the circulating kettle 3 and the circulating pump 6 are arranged to keep the spinning stock solution in a flowing state, which is beneficial to The PE powder is fully dissolved in the solvent without precipitati...

Embodiment 2

[0029] On the basis of Example 1, a structure of the powder metering scale is as follows: it includes a servo motor and a screw conveyor driven by the servo motor, the control end of the servo motor is connected with the signal of the spinning stock solution controller, and the spinning stock solution control The device controls the rotation speed of the servo motor to keep the spinning stock solution in a flowing state all the time, so as to prevent the precipitation of PE powder, which is beneficial to the later spinning and other operations.

[0030] The solvent feeding mechanism includes a solvent feeding pipe, a feeding pump installed on the solvent feeding pipe and a flow valve. The control end of the flow valve is connected to the signal of the spinning dope controller. The spinning dope controller controls the opening time and opening time of the flow valve. The degree of automatic and precise control of the amount of solvent fed into the feeding tank ensures that the f...

Embodiment 3

[0033] The feeding kettle is provided with a first heating assembly and a first temperature detector, and the control end of the first heating assembly and the signal output end of the first temperature detector are both connected to the spinning dope controller for signals;

[0034] The circulating kettle 3 is provided with a second heating assembly and a second temperature detector. The control end of the second heating assembly and the signal output end of the second temperature detector are all connected to the spinning dope controller signal, and the first temperature detector and the second temperature detector are detected separately, and the temperature in the feeding kettle is automatically controlled by the first heating assembly, the spinning dope controller, and the first temperature detector. Closed loop, when the first temperature detector detects the temperature in the feeding kettle After the temperature is lower than the corresponding temperature threshold stor...

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Abstract

The invention discloses a preparation device for high-strength and high-modulus polyethylene fiber spinning stock solution, which comprises a spinning stock solution controller, a feeding kettle, a discharging kettle, a discharging pipe, an overflow pipe, a circulating kettle and a circulating pump, wherein the feeding kettle is communicated with the discharging kettle through the discharging pipe; a first end of the overflow pipe is communicated with the discharging pipe, a second end of the overflow pipe is communicated with the discharging kettle, the circulating kettle and the circulatingpump are both installed on the overflow pipe, and the control end of the circulating pump is connected with the signal of the spinning stock solution controller; a powder metering scale and a solventfeeding mechanism are arranged on the feeding kettle, and the control end of the powder metering scale and the control end of the solvent feeding mechanism are all connected with the signal of the spinning stock solution controller; a first stirring mechanism and a second stirring mechanism are respectively arranged in the feeding kettle and the discharging kettle. The invention has the advantagesthat the material mixing process is automatically operated; accurately controlling the proportion of PE powder and solvent; the quantity of the PE powder and the solvent are accurately controlled; and the quality of the primary fiber and the finished fiber prepared by the spinning solution prepared by the device is ensured.

Description

technical field [0001] The invention relates to the technical field of chemical equipment, in particular to a high-strength high-modulus polyethylene fiber spinning stock solution preparation device. Background technique [0002] High-strength high-modulus polyethylene fiber Polyethylene fiber is the third-generation special fiber in the world today, with a strength of up to 30.8cN / dtex, the highest specific strength among chemical fibers, and good wear resistance, impact resistance, corrosion resistance, and light resistance. . It can be directly made into ropes, cables, fishing nets and various fabrics: bulletproof vests and clothes, cut-resistant gloves, etc., among which the bulletproof effect of bulletproof vests is better than aramid. Internationally, high-strength and high-modulus polyethylene fibers have been woven into ropes of different deniers, replacing traditional steel cables and synthetic fiber ropes. High-strength high-modulus polyethylene fiber composite m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D1/02
CPCD01D1/02D01D1/065D01D1/09
Inventor 史小军
Owner 河北和泰航天科技有限公司
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