| Rotary Plough Feeder | ||
| ThyssenKrupp Materials Handling plow feeder systems are used to efficiently reclaim sticky hydroscopic ores as well as free-flowing and highly abrasive materials. With their patented blade designs, our rotary plow feeders ensure stable and regular flow of material from storage to the reclaim conveyor belt, with minimum power consumption, blade liner wear, or material degradation. A rotary plow feeder is a heavy-duty machine used to reclaim stored bulk materials. The feeder is designed to operate in a tunnel beneath a storage pile, in bins or in bulk vessels. A slot allows the stored material to flow onto a protruding reclaim shelf. The design of this shelf prevents the stored material from flowing over the edge of the reclaim shelf. The plowing mechanism, the key to the system's operation consists of curved arms revolving on a vertical axis that sweep the stored material from the shelf onto a belt conveyor. The plow feeder can be continuously traversed or positioned at any point along the reclaim shelf for maximum flexibility. The speed of the plowing mechanism, or rotor, is automatically, or operator adjustable so that the reclaim capacity can be controlled to meet project ton- per-hour requirements. The traversing machinery enables the rotary plow feeder to reclaim materials evenly along the entire length of the system. | ||
| Storage and Plow Feeder Reclaim Systems | ||
| A traveling stacker, tripper, or shuttle conveyor discharges the incoming material to the storage pile above the reclaim conveyor and rotary plow feeder. The stocking system can either be an open structure or one that completely encloses the storage pile. The use of a traveling stacker eliminates the need for an "A" frame structure. Should covered storage be required, however, a separate building can be provided that encloses both the storage pile and the stacker. | ||
| Handling of more than One Kind of Material | ||
| Separation of incoming materials, irrespective of quantity, is handled easily by the plow feeder systems. Through selective positioning of the stockpiling equipment, incoming materials are deposited in separate sections of the storage area. Using the ThyssenKrupp Robins patented retractable arm plow feeder, the desired stored material can be reclaimed independently without disturbing any of the other materials in the storage pile. | ||
| Blending | ||
| When material is reclaimed from separate storage piles of uniform analysis in varying proportions by individual feeders, the desired product mix will result. | ||
| Reclaim Control | ||
| Varying the plow rotor speed controls the output tonnage of the rotary plow feeder. Building numerous adjustable speed drives into the machine allows specific requirements to be met. Most economical is the mechanical, variable speed drive, as it requires only local manual adjustment. As an added feature, remote control capability from a central control point can be built into the rotary plow feeder to accommodate rotor speed adjustments. | ||
| Advantages | ||
| First in, first out - as well as 100% live storage - virtually eliminates the danger of spontaneous combustion when handling materials such as coal. The long slot-type opening in the tunnel wall and the undercutting action of the rotary plow feeder eliminate the material bridging and rat-holing often experienced with other types of feeders. When a single plow feeder is required to reclaim the entire storage pile, rather than multiple fixed feeders, equipment cost is reduced. Adaptable to a variety of materials and weather conditions, the plow feeder can be used where other machinery has failed. Because the rotating arms of the machinery physically undercut the pile of material and draw it out to the reclaim conveyor, the plow feeder does not depend on gravity alone to create the material flow. | ||