First evaluation of R290 environmentally friendly refrigerant compressor in China
The anchor drilling rig is mainly used in hydro power stations, railways and highways, in order to prevent and control various geological disasters, anchoring operations are carried out on landslides and dangerous rock masses.It is mainly used in landslide and dangerous rock anchoring projects in tunnels, railways, highway slopes and other kinds of geology, especially for high slope rock anchoring projects. Drilling operations consume less manpower and material resources, have high construction efficiency and high safety factor. It is also suitable for the construction of deep foundation pit support, reinforcement hole for anti-float anchor and foundation grouting, blast-hole in blasting project, high pressure sprinkling stake and tunnel pipe support hole, etc.. Anchor Drilling Machine,Roof Bolter,Bolting Machine,Anchor Bolt Drilling Machine JIANGSU XI TEC ENVIRONMENTAL&DRILLING EQUIPMENT COMPANY CO.LTD , https://www.xitecdrilling.com
On November 28, the officials of the Ministry of Environmental Protection responsible for the project review and the accompanying experts rushed to Guangdong Meizhi Refrigeration Equipment Co., Ltd. to conduct an on-site inspection of the Meizhi “R290 compressor production line reconstruction†project. Through careful verification of the hardware equipment, technical management, financial management, production and sales scale of the Meizhi R290 compressor production line, the experts acknowledged that the relevant data sheets of the R290 compressor production line provided by Meizhi meet the requirements.
In July 2010, the Executive Committee of the 61st Montreal Protocol Multilateral Fund of the United Nations formally established the “R290 Compressor Production Line†project of Guangdong Meizhi Refrigeration Equipment Co., Ltd. as a demonstration project of the United Nations Multilateral Fund. As a new type of environmentally-friendly refrigerant with energy-saving and low-carbon advantages, R290 represents the development direction of refrigerants in the future, becoming a new technology promoted by the United Nations Multilateral Fund, and it is also a new technology that China has focused on.
The Ministry of Environmental Protection attached great importance to this project. The special committee sent a commissioner to Meizhi Company for review. Under the strong support of the Ministry of Environmental Protection and through the guidance of experts, the project has passed the first phase of the review, which is of great significance to the development of domestic R290 refrigerant technology.
The drilling technology with casing of anchor drilling rig is designed to solve the problem that complex rock layers cannot be holed. The drill bit impacts rock continuously, and the broken rock is blown to the ground by the air pressure discharged from the gap between the casing and the drill pipe. The drill pipe and bit can be lifted after punching the hole, and the casing is placed in the middle of the rock layer, so that the rock layer doesn't collapse.