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Difference between revisions of "Rail Car Unloaders"
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[[File:Rail Car Unloaders_1.jpg|thumb|200px|right|Rail Car Unloaders]] | |||
'''Rail Car Unloaders''' are designed to sit just under the rail. It is an easy in, easy out unit. Railroad Car Unloader is a complete, self-contained material conveying system operating on a vacuum/pressure continuous loading principle which offers the advantages of continuous material flow at high rates over substantial distances. Continuous material flow not only insures maximum efficiency from the blower unit, but also eliminates any potential clogging which might occur (particularly at the bottom of long vertical lines) by intermittently starting and stopping the material flow as in a batching vacuum system. | |||
The Unloader utilizes a single positive displacement blower (as standard, or an optional dual blower arrangement if required) to create the vacuum as well as generate the positive pressure conveying air flow. The blower is protected from material entrance on the discharge side by a check valve. Further protection is afforded by using both vacuum and pressure relief valves. Critical functions are monitored by gauges. The single material receiver/ air filter features automatic, continuous filter element cleaning. Material build-up on the elements is monitored by a gauge. The rotary valve under the receiver is chain driven by a fractional horsepower gearmotor. In some applications the Filter receiver can be replaced with a cyclone transfer station. | |||
==Railcar Unloader Operation== | |||
Vacuum is drawn on the material receiver by the motor driven positive displacement blower. Material and air flow from the railroad car to the receiver through the rail car adaptor and flexible hose. In the receiver the material and conveying air are separated. The material falls to the bottom of the receiver and the air passes through a filter (or filters) to the blower. The material in the bottom of the receiver is metered out and fed into the pressure side of the system by a rotary valve. The conveying air on the pressure side is generated by the blower. Material and air flow, under pressure, from the Railroad Car Unloader to the storage silo or bins. | |||
==Videos== | |||
<youtube>R8p6hY_r_ME</youtube> | |||
<youtube>KngMhDU59Oo</youtube> | |||