48results about How to "Reasonable dispersion" patented technology

The invention discloses an energy-saving efficient plastic granulator, a feeding screw rod is rotationally arranged in a feed barrel, a scraper plate is rotationally arranged in a granulation extrusion cavity, a scraping block is arranged on the excircle of the scraper plate, the scraping block is closely attached to the inner cylinder wall of an extrusion die cylinder, the cylinder wall of the extrusion die cylinder is provided with extrusion holes, and a rotational cut-off tool is arranged on the outer cylinder wall of the extrusion die cylinder; the energy-saving efficient plastic granulator is characterized in that: the inner cylinder wall of the feed barrel is provided with a plurality of vertical ribs, the vertical ribs pass through, from up to down, the whole feed cylinder height, the top circle of the vertical ribs is matched with the excircle of the feeding screw rod, adjacent vertical ribs, and the inner cylinder wall of the feed barrel and the excircle of the feeding screw rod enclose a space to form an inner air circulation channel of the feed barrel. The energy-saving efficient plastic granulator uses the scraping block to grind a material to produce heat to melt the material for plastic granulation, the energy-saving efficient plastic granulator can always smoothly exhaust in the working process, and the unique scraper plate is designed to avoid local overheating of the material so as to avoid obstruction of heat transfer, so that automatic control of blanking and feeding can be achieved, and the entire normal high-speed granulation process and high granulation quality can be ensured.

The invention discloses a leadless gamma ray shield flexible composite material and a preparation method thereof. The method comprises the following steps: aqueous polyurethane and a proper amount ofa thickening agent I are mixed, a mixture is dispersed at a low speed by a dispersing sand mill, a gamma ray screener is slowly added during a dispersing process, after dispersion, a few of a thickening agent II, an antifoaming agent, a dispersant, and a coupling agent are added in order; the dispersing speed is adjusted to a rapid state, the materials are dispersed for 20 min, a few of the antifoaming agent is added, and then rapid dispersion is kept for 10 min; and ultrasonic dispersion is performed on the above mixture for 20 min; vacuum-pumping treatment is performed on the above mixture to remove bubbles, and a paint is obtained; fabric base cloth is fixed on a pin frame of a coating machine, the above prepared paint is employed for coating treatment on the base cloth, the coating fabric is aired for 2 hours at room temperature, then the fabric is placed in a baking oven and the fabric is dried for 1 hour at the temperature of 60 DEG C, and the coating fabric is aired for 24 hoursat room temperature to obtain the leadless gamma ray shield flexible composite material.

A modified high density brine for use in subterranean drilling and completion operations. The modified high density brine includes the addition of high density particle addition that can optionally be surface-modified. The resultant modified high density brine eliminates the need for toxic, corrosive, and costly ZrBr2 additions or other ionic additives to boost the density of the modified high density brine to 15-17 lbs. / gallon or greater.