digital divide network - article database

Introduction to Spiral Classifier

Our spiral classifier are designed to provide the most effective pool area and overflow velocity requirements. By combining the proper submergence of the spiral with one of the tank designs a choice of 63 combinations is possible in Straight, Modified or Full flare tank designs. The proper combination of pool depth, area and spiral construction is important to secure a controlled turbulence in the slurry flow for accurate size separation.

PF Crusher for sale

Mineral processing is a major division in the science of Extractive Metallurgy. Extractive metallurgy has been defined as the science and art of extracting metals from their ores, refining them and preparing them for use. Within extractive metallurgy, the major divisions in the order they may most commonly occur are, Mineral Processing (or Beneficiation), Hydrometallurgy, Pyrometallurgy, and Electrometallurgy. The last steps in the winning of metals are in Physical Metallurgy where the composition and treatment of metals are varied to provide desired physical and mechanical properties.

This spiral classifier can filter materials and send coarse materials to the feeding mouth and discharge fine materials from the pipe. The seat of the machine features channel steel material, while the body is armor plated and the spiral axle is made of cast iron for durability. The machines lifting equipment can be used manually or electronically.

Spiral and Rake Classifiers

Mechanical classifiers such as the spiral and rake classifiers work in a similar fashion in that both drag sediment and sand along the bottom of an inclined surface to a higher discharge point on one end of the settling chamber. The primary difference in the two systems is the mechanism by which the settled material is moved up the inclined surface (see figure 11). Spiral classifiers are generally preferred as material does not slide backwards which occurs in rake classifiers when the rakes are lifted between strokes. This also allows spiral classifiers to operate at steeper inclines producing a drier product. The spiral classifier also produces less turbulence in the settling pool allowing for separation of finer material.

Many industries have benefited from the increase of high-speed railway construction in China, the first enterprises to benefit will be those directly related to railway infrastructure, including China Railway, China Railway Construction Corporation, China Railway Bureau, Tunnel of Shares, etc.. With the rapid development of railway construction, the orders of these enterprises have soared, and it shows that there will be a stable return on investment in the future. China Railway Group is the most typical enterprise of the all. It is reported that in the domestic high-speed rail project, the China Railway Group has got more than 60 percent of the orders. High-speed rail construction will directly drive the demand for mechanical equipment of vehicles.

In recent years, total investment of all the high-speed rail project under construction is close to 3 trillion yuan, which will produce about 450 billion yuan of demand for rail transportation equipment. China South Locomotive and China North Vehicle have almost monopolized 95% of the domestic railway vehicle market share; as for the foreign markets, China's railway vehicle equipment already has a strong international competitiveness in the market. With the climax of the global railway construction, export space is becoming huge. From both in terms of domestic and foreign, it can be predicted very bright prospects of the two railway locomotive manufacturing companies.

The article is provided by Henan Hongxing,which is the professional manufacturer of complete sets of mining machinery, for example,China mobile crusher, it is always doing the best in products and service.You can visit Hongxing at jaw crusher:http://www.hxjqchina.com/product-list_11.html