Preparing technology of high-quality guar gum powder
A technology of guar gum powder and preparation process, which is applied in the field of preparation technology of high-quality guar gum powder, and can solve the problems that the insoluble components of polysaccharide glue are not reported, etc.
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Embodiment 1
[0023] Add 10kg of guar gum endosperm sheets after winnowing into the stirring device, add 9kg of water, and the temperature is 40 0 C. Stir for 75 minutes; add the swollen guar gum endosperm slices to a twin-screw extruder for extrusion, the screw speed is 120rpm, the length-to-diameter ratio (L / D) is 13:1, and three sets of extrusion are set on the twin-screw Wedge module, twin-screw extruder jacket through cooling water, control temperature at 80 0 Below C, snowflake-like thin film is obtained; air-drying, about 20% water content of guar gum dry film; use JCBM-760 type pulverizer to powder, control the water content below 10% by adjusting the air volume, and adjust the powder connection rate to 85%. More than 99% of the crushing fineness passed through a 180-mesh sieve to obtain 8.8 kg of high-quality guar gum powder.
Embodiment 2
[0025] Add 10kg of guar gum endosperm sheets after winnowing into the stirring device, add 8kg of water, and the temperature is 50 0 C. Stir for 60 minutes; add the swollen guar gum endosperm slices to the twin-screw extruder for extrusion, the screw speed is 200rpm, the length-to-diameter ratio (L / D) is 15:1, and three sets of extrusion are set on the twin-screw Wedge module, twin-screw extrusion equipment jacket through cooling water, control temperature at 80 0 Below C, snowflake-like thin film is obtained; air-drying, guar gum dry film with a moisture content of about 10% is obtained; use JCBM-760 type pulverizer to powder, control the moisture below 10% by adjusting the air volume, and adjust the powder collection rate to 80%. More than 99% of the crushing fineness passed through a 180-mesh sieve to obtain 8.9 kg of high-quality guar gum powder.
Embodiment 3
[0027] Add 10kg of guar gum endosperm slices after winnowing into the stirring device, add 12kg of water, and the temperature is 30 0 C, stirring for 90 minutes; add the swollen guar gum endosperm slices to a twin-screw extruder for extrusion, the screw speed is 300rpm, the length-to-diameter ratio (L / D) is 16:1, and three sets of extrusion are set on the twin-screw Wedge module, twin-screw extrusion equipment jacket through cooling water, control temperature at 80 0 Below C, snowflake-like thin film is obtained; air-drying, about 30% water content of guar gum drying film; use JCBM-760 type pulverizer to powder, control the water content below 10% by adjusting the air volume, and adjust the powder collection rate to 90%. More than 99% of the crushing fineness passed through a 180-mesh sieve to obtain 8.7 kg of high-quality guar gum powder.
[0028] Mix the rubber powder obtained in Examples 1, 2, and 3 with commercially available first-grade rubber powder to prepare 300 mL of...
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