Process for crushing pulp dregs in production of viscose fibers
A viscose fiber and pulp technology, applied in the field of pulp crushing technology, can solve the problems of vitrification of pulp, insufficient pulp crushing degree, etc., and achieve the effects of improving uniformity, shortening dissolution time, and saving production costs
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Embodiment 1
[0019] A kind of pulp crushing process in viscose fiber production, it is characterized in that: comprise following process step:
[0020] A. Pre-crushing: crushing the pulp after the pressing process at a low speed;
[0021] B. High-speed fine crushing: transport the pre-crushed pulp to a high-speed fine grinder for high-speed fine crushing, the speed of the grinder is 1150 rpm, and the crushing time is 0.05s;
[0022] C, secondary fine crushing: carry out secondary fine crushing through the high-speed finely crushed pulp, and obtain the secondary crushed pulp with a crushing degree of 130g / L, and send it to the aging process; the speed of the pulverizer is 2240 rpm, The crushing time is 0.01s.
[0023] The pulp obtained through high-speed fine grinding in step A of the present invention is pulp with a grinding degree of 200 g / L.
[0024] In the step A of the present invention, pulverizing the pulp that has passed through the pressing process at a low rotational speed refer...
Embodiment 2
[0026] A kind of pulp crushing process in viscose fiber production, it is characterized in that: comprise following process step:
[0027] A. Pre-crushing: crushing the pulp after the pressing process at a low speed;
[0028] B. High-speed fine crushing: transport the pre-crushed pulp to a high-speed fine grinder for high-speed fine crushing, the speed of the grinder is 1440 rpm, and the crushing time is 0.08s;
[0029] C, secondary fine crushing: carry out secondary fine crushing through the high-speed finely crushed pulp, and obtain the secondary crushed pulp with a crushing degree of 200g / L, which is sent to the aging process; the speed of the pulverizer is 2800 rpm, The crushing time is 0.05s.
[0030] The pulp obtained through high-speed fine grinding in step A of the present invention is pulp with a grinding degree of 220 g / L.
[0031] In the step A of the present invention, pulverizing the pulp that has passed through the pressing process at a low rotational speed ref...
Embodiment 3
[0033] A kind of pulp crushing process in viscose fiber production, it is characterized in that: comprise following process step:
[0034] A. Pre-crushing: crushing the pulp after the pressing process at a low speed;
[0035] B. High-speed fine crushing: transport the pre-crushed pulp to a high-speed fine grinder for high-speed fine crushing, the speed of the grinder is 1295 rpm, and the crushing time is 0.065s;
[0036] C, secondary fine crushing: carry out secondary fine crushing through the high-speed finely crushed pulp, and obtain the secondary crushed pulp with a crushing degree of 165g / L, and send it to the aging process; the speed of the pulverizer is 2520 rpm, The crushing time is 0.03s.
[0037] The pulp obtained through high-speed fine grinding in step A of the present invention is pulp with a grinding degree of 210 g / L.
[0038] In the step A of the present invention, pulverizing the pulp that has passed through the pressing process at a low rotational speed refe...
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