In response to the increasingly difficult situation of phosphate rock supply dilemma, Wu Xiyan, chairman of the China Phosphate Fertilizer Industry Association, recently made two suggestions in an interview: First, it is necessary to rationally develop and use and continuously tap potential; second, to limit exports and encourage imports.
Due to the lag in development, the output could not meet the development needs of phosphorus chemical industry. Since the second half of 2004, the price of phosphate rock has risen sharply. The price of 32% grade phosphate rock pit has increased from 250 yuan/ton at that time to 320 yuan/ton now. Above, the tightening price of goods has become a prominent issue in the current supply of phosphate rock. Last year, many phosphate fertilizer companies far away from the resource sites frequently stopped production and production due to insufficient supply of raw materials.
How to break through the supply of phosphate rock? Wu Xiyan thinks:
First, encourage powerful enterprises to take the road of combining mineral fertilizers and acid and fertilizers and promote the rational development and utilization of phosphorus and sulfur resources. The prospects for China's phosphorus resources are relatively good, with an initial forecast of 35 billion tons of resources. The geological department is still looking for new resources and the discovery of new phosphate deposits is still promising. Powerful large companies should make great efforts to find new phosphorus resources, and based on comprehensive development and utilization of existing resources to encourage the rich and the poor and mining, to achieve the selection and enrichment of low-grade phosphate rock industrialization. The 600,000 tons/year medium- and low-grade heavy medium ore dressing plus double reverse flotation project jointly designed by Hubei Yihua and a well-known domestic scientific research institute is a good example. The content of phosphorus pentoxide in the selected phosphate rock can be increased by 20%. Increased to more than 30%, rich-poor mines have a ratio of 1:7, making the utilization rate of resources more than 80%. A new trend in the industry is that some companies are buying some of the poorer grades of poor mines to reserve resources for the future. To this end, the Phosphorus Fertilizer Association is leading the entire industry and even all parties in society to study the mining and processing technologies to achieve the rational use of lean ore.
Second, we must take effective measures to limit the export of phosphate rock, and at the same time strongly encourage imports, and encourage powerful companies to "go global" to develop and use offshore resources. Since the beginning of this year, companies have started to import phosphate rock, which shows that it is possible for China to import phosphate rock. However, the current price is still an important factor restricting the import of phosphate rock, such as Morocco 32% grade phosphate rock, the current FOB price of about 45 US dollars / ton, plus about 35 US dollars / ton of sea freight and related taxes and fees, to China's relevant ports The price has reached 80 US dollars / ton or more, the price of domestic enterprises can not afford. To this end, the Phosphate Fertilizer Association is studying and encouraging the import of phosphate ore, such as the recent consultation with the relevant state authorities to reduce or exempt relevant import taxes, and encourage the import of phosphate ore from the policy side.
A fully re-equipped lab sieve at Chenwei Corporation contains a full range of screening and fluid bed processing equipment that is readily reconfigured to simulate customer installations for trials using supplied materials. All models of laboratory sieve are quick-clean designs allowing easy access to interior components for rapid inspection, disassembly, screen changes and cleaning. Most notable is the lab's new, full scale, fluid bed processing equipment for drying, cooling and moisturizing of bulk solid materials. The exclusive, circular vibratory design enables entire systems consisting of fluid bed processor, heater/cooler/moisturizer, blower and dust collector, to be self-contained on mobile frames with casters, offering testing flexibility not practical with larger, heavier, rectangular units of equivalent capacity.
There are two Test Sieve for lab,one is standard test sieve,the other is electromagnetic vibration sieve.In comparison,the electromagnetic vibration sieve has mush higher accuracy for particles size distribution test. Up to 600 mesh sieve can be used on it.
Feature
* Lab use for particle size analysis.
* High efficiency and high precision,
* Tight Structure and low noise
* Precise timer function
* Up to 600mesh can be test
Test Sieve
Test Sieve,Stainless Steel Sieve,Soil Testing Sieve,Grain Test Sieve
XINXIANG CHENWEI MACHINERY CO.,LTD , https://www.sieves.nl