An anchor assembly that enables anchor points for weight lift and for height entry or fall protection. The assembly of the present disclosure generally includes: a stud, an external elongated surface with load-bearing threads, and a through tunnel fabricated on the stud , the through-tunnel intersects and is perpendicular to the longitudinal axis of the stud; member comprising an eyelet surrounding the opening and a pair of retainers extending from the eyelet, each retainer defining a hole at its central axis , and defines a hole having a diameter 0.1 to 2 mm larger than the diameter of the stud; the retainers are spaced apart from each other for receiving the stud through the hole, and are axially aligned with a cavity of predetermined length; a nut with sidewalls , the sidewall defines an internally threaded passage through which the nut is fixable to the stud and located within the cavity for insertion between the pair of retainer members, the nut on the side The wall has a pair of axially aligned and radially extending through holes; the through holes are adjustably aligned with the passage tunnel to form a continuous passage thereof; and a pivot pin that can be filled through the through holes and Passage through the tunnel to lock the nut onto the stud. The eyelet of the assembly of the present disclosure is configured to be rotatable about the longitudinal axis of the stud, and the locked nut prevents movement of the member along the longitudinal axis of the stud. Rotary Furnace Anchor,Clip Anchor,Metal Screw Anchors,330 Stainless Steel Refractory Anchor Puyu kiln technology (jiangsu) CO.,LTD , https://www.anchorpy.com
On May 12th this year, Zeyi Industrial Group signed a cooperation agreement with Hangzhou Linda on the technology of large methanol synthesis. Zeze Group finally selected Hangzhou Linda's large-scale horizontal water-cooled methanol synthesis reactor with independent intellectual property rights, Linda's high temperature and energy efficient methanol synthesis technology, and the annual production of 1 million tons of coal-made raw material gas and methanol synthesis technology package to build Inner Mongolia Chifeng 1 million tons/year coal chemical project. This marks that the domestically produced large-scale methanol synthesis tower has gone through a decade of grinding and has already had the confidence and strength to equip the Chinese chemical industry. Based on the requirements of “equal temperature, high efficiency, energy saving, reliability, low investment, and large sizeâ€, Linda will aim at a one million-ton large-scale methanol single-synthesis tower, which will increase the synthesis pressure and reduce the cycle ratio. Increase the synthesis rate to reduce the diameter of the synthesis plant equipment and pipelines, reduce investment and energy consumption, and concentrate on breakthrough heat transfer problems under high synthesis rates and strong reaction heat.
Linda developed a number of large-scale methanol synthesis technologies such as air-cooled, axial water-cooled, radial water-cooled, and air-cooled, water-cooled combinations. The air-cooled homogeneous temperature reactor has been used in many industrial applications and has become a mature tower type. Its characteristics are large catalyst loading coefficient and high production intensity, small temperature difference in the catalyst layer, and low pressure drop, and can be conveniently used in large scale Methanol plant.
Linda's isothermal methanol synthesis technology has been successfully applied in 10 sets of methanol plants. The largest scale of equipment that has been put into operation is a large-scale synthesis tower with a diameter of 3 meters. It is used in two sets of 200,000 tons/year of methanol in Tianye, Inner Mongolia and Suihua, Shaanxi. The device, which is currently the largest domestic methanol synthesis plant built and put into operation using natural gas and coal-water slurry pressure gasification technology respectively. At present, there are 9 sets that have been processed or being processed, including a 3.2-meter-diameter large-scale synthesis tower for a 300,000-ton/year methanol plant of Dalian Dahua Group, Shaanxi Tianlin Coal Chemicals, Shanxi Tianhao, Yunwei Yunnan, and Shanxi Lanke 20 Million / year methanol plant with a large synthesis tower. The methanol synthesis tower has the advantages of small equipment volume, good catalytic activity, high CO conversion rate, low consumption of raw material gas, and low investment, and the comprehensive performance has reached a level that can compete with foreign technologies.
Hangzhou Linda is a national high-tech industrialization enterprise specializing in the design, development and manufacture of methanol, ammonia synthesis technology and synthesis towers. It integrates patent developers and equipment manufacturers and undertakes a series of national major projects. Especially in methanol synthesis technology has a leading domestic level and large-scale methanol synthesis tower successful performance. Now we have a total of 16 domestic and international authorized patents, and it is the patent developer with the most patents for methanol synthesis technology and reactors in China. Linda's large-scale low-pressure, temperature-type methanol synthesis tower technology is the first of its kind at home and abroad. It has completely independent intellectual property rights and can form its own methanol synthesis technology and equipment. It can replace imported technology and can also export complete sets of technologies. It has a strong international Competitive ability. In 2004, Linda's low-pressure, uniform-temperature methanol tower won the second prize for national technology invention.
In addition, the representative methanol synthesis technologies include the outer-tube cold-adiabatic complex methanol synthesis tower technology of East China University of Science and Technology and the GC-axis radial methanol synthesis tower technology of Nanjing Guochang Chemical Technology Co., Ltd. The external cold-insulated composite methanol synthesis technology of the shell is composed of an upper thermal insulation layer and an outer cold layer of the lower shell. The upper thermal insulation layer functions to raise the temperature and further purify the gas. The lower shell layer is the main reaction body, and the tube is filled with a catalyst. The single-pass conversion rate of the synthesis tower is high, the export methanol content is high, the energy utilization is reasonable, and the catalyst has a long service life. This achievement formed China's proprietary methanol synthesis tower technology and reached the international advanced level. It won the second prize for scientific and technological progress of the China Petroleum and Chemical Industry Association, and provided technical support for large-scale methanol plants in China. This achievement has been or is being implemented in Zhejiang Juhua Co., Ltd. 100,000 tons/year methanol plant, Shandong Hualu Hengsheng Chemical Company 200,000 tons/year methanol plant, Shandong Yankuang Group Guotai Chemical Co., Ltd. 200,000 tons/year multiple More than 20 sets of methanol plants such as the methanol plant and the Shandong Yankuang Coal Chemical Company's 200,000 tons/year coke oven gas methanol plant were implemented. Among them, 9 companies have already put into production and achieved good results. At present, East China University of Science and Technology has provided large-scale single-series design software packages for methanol synthesis towers with an annual output of 100,000 to 400,000 tons, and large-scale single-series design packages for parallel methanol synthesis towers with an annual output of 500,000 to 800,000 tons. , It can also provide a large-scale single-series basic design process package for the tandem methanol synthesis tower with an annual output of 600,000 to 1 million tons.
The GC-type shaft radial methanol synthesis tower has a novel technical structure and reasonable design. It fills the gap of the shaft radial low-pressure methanol synthesis tower in China, and its technical indicators have reached the international advanced level. In May 2005, the 150,000-ton/year methanol synthesis tower project developed by Nanjing Guochang Chemical Technology Co., Ltd. was successfully put into operation in the second phase of Shandong Jiutai Energy Technology Co., Ltd., marking the largest shaft diameter in China's independent research and development capacity. The methanol synthesis technology was successfully put into operation. At present, Nanjing Guochang has been able to independently undertake the process design and equipment production of methanol synthesis below 600,000 tons/year. The GC-type methanol synthesis towers produced can have a diameter ranging from 800mm to 3600mm.
For a long time, China's methanol plants have been mainly small-scale installations. At present, there are only a few units with a single-scale capacity of over 200,000 tons/year. In July last year, the National Development and Reform Commission issued a document setting the reasonable scale of methanol to an annual output of 1 million tons. The large-scale installation of equipment will inevitably require large-scale equipment. In recent years, East China University of Science and Technology, Hangzhou Linda Chemical Technology Engineering Co., Ltd., Nanjing Guochang Chemical Technology Co., Ltd. and other units have done a lot of innovative work in the design of large-scale methanol synthesis towers, and China's self-developed large-scale low-pressure methanol synthesis technology The crafts and equipment have become more sophisticated and mature.