The usually dustproof method the Concentrator used are :water spray dust and inhale dust and dust collector dust collector. When the environmental health (eg, does not produce more sewage, moisture, etc.) is not affected, and the latter operating under the principle is not vibrated , when people crushing, screening and transporting ore, the nozzle spray dust is simple and effective method of dust.The dispersion of the mist will accelerate the coagulation of dust particles,and reduce dust flying. The nozzle should be installed at the crusher, conveyors and ore bin to mine waste ore .as to the machine (such as crushing, screening machine, dryer, etc.)which easy to produce dust, use the ore trans-shipment points and hood seals to limit mine dust flying is the important method the concentrator always used. to prevent the occurrence of dust in a sealed cover ore falling excess pressure more thoroughly,the operator can press the suction pipe to discharge dusty gas. If the automatic control is adopted instead of manually operated machines to avoid the sealing cover is open frequently, the dustproof will be better. The crusher has been widely used in more and more industries. In accordance with the principles and structural features,the crusher are divided into: the special type of jaw crusher crusher. The crushing equipment kinds widely used in industry is varies, its classifying method can be divided into cone crusher, roll crusher and impact crusher. The complex structure of the pendulum jaw crusher is similar with the simplify type,only reduce the rod, the after thrust plate and moving jaw spindle components,the institutions is much easier than the others. As to the trajectory of the moving jaw jaw is not moving jaw mandrel swing back and forth, but very complicated trajectory, that is the reason why it is called the compound pendulum jaw crusher. Its Moving jaw directly hanging in the eccentric shaft through the roller bearing, the lower thrust is supported by pushing power plant. When the Motor drive eccentric shaft rotation through V-belt wheel , the movable jaw on the fixed jaw play the part of cyclical swing. The Compound pendulum jaw crusher discharge opening gap adjustment device to adjust the oblique iron. Compared to the compound pendulum jaw crusher with a simple pendulum jaw crusher, its structure is more compact; moving jaw and rack bearings are used to rolling bearings, the friction is small, easy to start, lubricating is more simple; and moving jaw The stroke of the upper level can meet ore crushing the desired amount of compression, and downward movement of the movable jaw to promote the role of the row of mine, so the productivity is about 30% higher than the simple pendulum. Since 1980, the domestic manufactures have researched and produced a compound pendulum fine jaw crusher.
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