The chemical composition of kenaf bast and wood core: ash content was 3.9% and 4.3%, respectively; extracts were: petroleum ether 0.4% and 0.3%, diethyl ether 0.2% and 0.1%, 95% ethanol 1.4% and 1.5 %, hot water 13.3% and 7.6%, 1% NaOH 34.2% and 32.0%, benzene-alcohol 3.0% and 3.9%; clarenonin 11.1% and 20.5% respectively. The process conditions for alkali-oxygen pulping of kenaf bast fibers are: alkali amount 8%-15% NaOH, oxygen pressure 0.7 MPa, temperature 110°C, and holding time 1 hour. Cooking results: The yield of the coarse pulp was 67% to 78%, the Kappa number was 44-54, and the treatment of ginseng-oxygen pulp was carried out by refluxing with 50%-70% acetic acid solution for 1 hour. The pulp yield was 56%-59%. Kappa number 21 to 31. The four-stage bleaching of Pa (peracetic acid) 5%-P (hydrogen peroxide) 1%-Pa1%-P1% was used, and the whiteness of the bleached pulp was 82% ISO. The strength properties of the unbleached and bleached pulp of the kenaf bast fibers produced by the alkali-oxygen method are comparable to the unbleached and bleached softwood kraft pulp strength.

Tripod Turnstile Gate

The tripod Turnstile Gate is suitable for all kinds of places that require pedestrians to pass in an orderly manner after verification.
Advantage
1. Fully rainproof tripod barrier gate cabinet made of stainless steel. Compared with pedestrian access equipment such as wing gates and swing gates with general functions, the tripod baffle gate are more cost-effective and good-quality.
2. RFID tripod turnstile gate has a personalized installation interface (such as card reader, indicator light installation, etc.) to ensure that the control gate equipment of the system integrator is simple and convenient during installation.
3. The movement of the 3 arm tripod turnstile gate has an automatically adjusted hydraulic shock absorber. When the tripod turnstile is used, the sound is very small and there is no impact, and the brake lever automatically decelerates and returns to the center. The surface of the movement is electroplated with yellow dichromate.
4. Semi-automatic tripod turnstile gate can be programmed with gate control, one or two direction control (set by the user).

3 Arm Turnstile Gate,Tripod Barrier Gate,Tripod Baffle Gate,Rfid Tripod Turnstile Gate

Guangdong Zecheng Intelligent Technology Co., Ltd , https://www.szzcsecurity.com