Speaking of bamboo, the first thing you can think of may be the fresh and tender food in the mouth of giant pandas, or the commonly used bamboo chopsticks, bamboo baskets, bamboo chairs and so on. At this year's service trade fair, China Railway Construction Corporation Limited (hereinafter referred to as China Railway Construction) displayed a super-large bamboo winding composite pipe gallery with a diameter of 5 meters, which was very eye-catching in the bright environmental service exhibition area and attracted many visitors.
"Bamboo winding pipeline is made of bamboo through deep processing, which has the characteristics of high deformation resistance and high construction efficiency." Han Lu, a staff member of China Railway Construction Exhibition, introduced that this is a new type of bio-based pipeline which can replace most of the traditional pipelines such as welded steel pipes, plastic pipes and reinforced concrete drainage pipes.
"This is the raw material for bamboo winding pipes." Pointing to the thin bamboo chips on the exhibition stand, Han Lu said, "This pipeline is mainly divided into three layers, with bamboo as the basic material and resin as the adhesive, processed by winding process, all links fully reflect the concept of environmental protection." The production process of the pipeline does not consume fossil energy and does not produce waste gas and waste water. According to estimates, compared with spiral welded pipes, the production of 10 million tons of bamboo winding composite pressure pipes can save 45.05 million tons of crude steel and reduce carbon dioxide emissions by 30.63 million tons.
"In the process of traffic engineering construction, this product has also been widely used." Han Lu introduced that in the construction project of Chongqing-Kunming high-speed rail, bamboo winding pipeline was first applied in the field of traditional tunnel construction. Compared with the spiral welded pipe used in the past, the inner wall of the high-pressure air duct made of bamboo winding composite material is very smooth, the roughness and friction resistance are very small, and the conveying capacity can be significantly improved. At the same time, the bamboo winding pipe also has the advantage of light weight, and the overall weight after equipment is only one third of the spiral welded pipe.
China is the country with the most abundant bamboo resources in the world, and is also the first country to develop and use bamboo. As a rich renewable resource, it is of great significance to actively and effectively develop bamboo resources for the protection of the ecological environment. In 2022, the Chinese government and the International Bamboo and Rattan Organization jointly launched the "Bamboo for Plastic" initiative to promote the solution of environmental and climate issues.
"At present, we have built three bamboo winding pipeline production bases with an annual capacity of 25000 tons, and the products have been put into use in more than 20 provinces (autonomous regions and municipalities), which have the conditions for large-scale promotion." Han Lu said, "In the future, China Railway Construction will continue to increase the research and development of bamboo winding composite materials, promote the deep integration of emerging green industries and traditional high energy consumption industries, and help achieve the goal of" double carbon ".
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