China Drying Network Recently, the National Agricultural Science and Technology Achievement Transformation Project undertaken by Hebei Province has successfully passed the acceptance test of the transparent xanthan gum technology for starch sugar and soybean biological method, and achieved four major technical breakthroughs such as low-temperature drying. Transparent xanthan gum is a kind of bio-polysaccharide produced by special bio-fermentation engineering, which is based on agricultural products such as starch sugar and soybean powder, and it is a kind of safe food additive with special functions. It belongs to the national "Twelfth Five-Year Plan" strategic emerging industry. Focused support for biotechnology. The aqueous solution has the characteristics of high transparency, good thickening and suspending performance, and rheological pseudo-plastic controllability. It is a safe replacement thickening emulsification product for dairy products, fruit milk beverages, transparent beverages, condiments, jelly, juices, etc. in the food industry. The agent is a new generation of environmentally friendly and healthy stabilizers in the softeners, high-end cosmetics, toothpastes and personal care products of the daily chemical industry. The project achieved four major breakthroughs in the R&D process. First, it screened xanthan gum producing bacteria that can use both inorganic nitrogen and organic nitrogen but was dominated by inorganic nitrogen. The pyruvic acid content was 2.6%; Membrane technology is combined to separate and purify the fermentation broth; the third is to pretreat the non-grain fermentation carbon source; and the fourth is to combine the low-pressure drying with low-pressure and low-temperature comminution to ensure the homogeneity of the polysaccharide molecular structure. "The method of post-extraction of transparent xanthan gum" and "Method of post-extraction of available xanthan gum" won the national invention patent. During the implementation period of the project, a total of 550 tons of transparent xanthan gum was produced, with a sales income of 35.75 million yuan, a tax payment of 4.4 million yuan, a net profit of 7.31 million yuan, and foreign exchange earnings of 2.2 million US dollars.
Tube sheet are usually made of a round flat plate with holes drilled into the plate to accommodate tubes in the exact location and pattern relative to each other. The tube sheet is used to support and isolate the tubes in the Shell And Tube Heat Exchanger.
A tube sheet is a plate used to support a tube in a shell and tube heat exchanger. The tubes are aligned in a parallel manner and are supported and held in place by the tube plate. A tube sheet is a round plate with holes in it so that the tube can fit through the opening. Tubes are usually made of round, flat metal sheets. Drill holes for pipe ends in precise locations and patterns relative to each other. The tube plate is made of the same range of materials as the pipe.
These are usually made of mild steel and vary in thickness according to fluid pressure. Depending on the final application (petrochemical, nuclear, oil and gas, etc.), the tubes can be clad in stainless steel or other superalloys, or even made entirely of stainless steel or superalloys.
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