In the past few days, the production workshop of Nan'an Pengxiang Gangshi Company has been busy, and the workers are busy shipping the artificial marble exported to Australia. “We introduced Italy's most advanced vacuum vibration and pressure forming technology, using artificial waste marble to produce artificial marble, which not only saves resources but also protects the environment. The products are sold well both at home and abroad.†According to the person in charge of the company, one production line can digest more than 100 tons per day. Stone, Nissan artificial marble more than 3,000 square meters.
Nan'an, which is known as the “hometown of Chinese building materialsâ€, has a market share of 2/3 of Fujian Stone. There are more than 1,500 stone enterprises, stone production accounts for 50% of the country, and stone products market share accounts for 70% of the country. In recent years, relying on scientific and technological progress, energy conservation and environmental protection "two-wheel drive", Nan'an stone industry has continued to grow and develop, has formed the largest stone industry cluster in China, and has moved toward the world-class stone industry manufacturing base and distribution center.
In order to solve the environmental problems brought about by the rapid development of the stone industry, Nanan vigorously implements the development strategy of equal emphasis on economic growth and environmental protection. Through the construction of a circular economy production base, comprehensive utilization of stone powder and gravel, effective treatment of production wastewater, production produced by the stone industry. The waste will become waste and promote the sustainable development of the stone processing industry. According to statistics, up to now, there are 135 stone crushing stone comprehensive utilization enterprises in Nan'an, with an annual output value of over 1.5 billion yuan, a comprehensive utilization rate of stone powder of 65%, and a utilization rate of crushed stone of over 90%, becoming the country's largest stone recycling economy green industry. base.
Nan'an Stone Industry is a microcosm of Fujian's building materials industry to develop circular economy, optimize industrial structure and promote industrial upgrading.
According to the relevant person in charge of the Provincial Economic and Trade Commission, Fujian is an important production province in China's building materials industry, and its industrial added value ranks the fifth in the country according to comparable statistics. In recent years, industries such as cement, stone, building ceramics, glass, and new wall materials have developed rapidly, and the overall strength of the industry has been continuously enhanced. However, there are also some shortcomings, such as the structural contradiction of the industry is relatively prominent, the concentration of some industries is low, and the capacity for independent innovation is insufficient. In particular, the building materials industry, as a raw material industry, has the characteristics of high energy consumption and high pollution.
“Therefore, strengthening structural adjustment, optimizing industrial structure, and promoting industrial upgrading have always been the main line of development of building materials industry in Fujian Province.†The relevant person in charge of the Provincial Economic and Trade Commission believes that “this is not only the need for industrial development, but also the creation of resource-saving and environmentally friendly. An important society and an important measure to promote the construction of the Haixi."
"Fujian Province Building Materials Industry Adjustment and Revitalization Implementation Plan" (referred to as "the program") proposed to focus on industrial restructuring, focusing on total control, energy conservation and emission reduction, elimination of backwardness, corporate restructuring, technological transformation, and optimization of layout. Transforming the development mode, promoting the optimization and upgrading of the building materials industry and the improvement of industrial concentration, and expanding and strengthening the building materials industry.
The "Proposal" proposes to optimize the industrial technology structure, enterprise organizational structure and product structure, and cultivate a group of large enterprise groups with independent intellectual property rights and well-known brands and strong international competitiveness. Increase the elimination of cement backward production capacity, strictly approve new deployment of new dry process cement projects, and cultivate and develop large-scale cement group enterprises with strong market competitiveness. Focus on the development of deep processing, high value-added stone products, support enterprises to comprehensively use waste to develop artificial granite, microcrystalline stone, aerated concrete blocks, stone powder bricks and other resources comprehensive utilization products. The cement industry should make full use of industrial waste such as fly ash, blast furnace slag and coal gangue as raw materials, and apply new dry-process cement low-temperature waste heat power generation technology and large-scale high-efficiency grinding technology to strengthen the application of low calorific value fuel and combustible waste. The stone industry should improve the rate of stone mining and production, reduce waste slag and waste water discharge, make full use of stone corner scraps for intensive processing, and strengthen the comprehensive utilization of stone powder waste.
The "Proposal" proposes that by 2011, the total industrial output value of the building materials industry in the province will reach 194.7 billion yuan. The total output of cement is 60 million tons, including 43 million tons of new dry process cement, accounting for more than 70% of the total cement production in the province, and the cumulative elimination of backward production capacity is over 5 million tons. The heat consumption per ton of clinker in the new dry process cement production line is ≤110 kg of standard coal, and the comprehensive electric consumption per ton of cement is ≤98 kWh. The installed capacity of pure low-temperature waste heat power generation is 235,600 kilowatts, and the annual power generation is 1.273 billion kilowatt-hours. The comprehensive utilization of stone stone powder is more than 500,000 tons. The comprehensive utilization of solid waste reached 56 million tons, and the new building materials enterprises realized clean production.
Pressure reducing valves has two types, direct operated type and pilot operated type.
Models DR are pilot operated reducing valves. They reduce pressure in a branch circuit lower than that of the main circuit. The valve design is capable of maintaining a precise pressure setting even at high flow.
Models ZDR are 3-way direct operated pressure reducing-relieving valves. They maintain a [reduced" pressure in a branch circuit and permit [relieving" pressure spike occurrences in the reduced branch circuit. Options for pressure ranges and operator adjustment options are within the scope of the modular Reducing Valve portfolio.
ZDR Features:
l Sizes 6 and 10
l For mounting:
– Size 6: Porting pattern according to ISO 4401-3, NFPA T3.5.1M Ra, and ANSI
B93.7 D 03
– Size 10: Porting pattern according to ISO 4401-05, NFPA T3.5.1M R1, and ANSI
B93.7 D 05
l Pressure reduction in channel A, B or P
l Four pressure ratings:
– 25 bar (360 PSI), 75 bar (1100 PSI), 150 bar (2175 PSI), and 210 bar (3050
PSI)
l Adjustment type:
– Rotary knob
DR Features:
l Size 10, 20
l Nominal pressure 100, 200 Bar
l Mounts on ISO 5781-06, 08, or 10
l 4 adjustment types for pressure adjustment,
optionally:
– Rotary knob
– Hex screw with protective cap
– Lockable rotary knob with scale
– Rotary knob with scale
Pressure Reducing Valves
Pressure Reducing Valves,Water Pressure Reducing Valve,Reducing Valve,Watts Pressure Reducing Valve
Jinan Longli Hydraulic Device Co.,Ltd , http://www.longlihydro.com