Scraper conveyor: General description and benefits

The scraper chain Conveyor is a device of continuous action, which is designed for delivery to small distance bulk fine materials in large quantities. Design simplicity, high efficiency and ease of maintenance of this vehicle make it a very popular and indispensable in many industries.

Scope

These units are typically used for the transport of bulk cargo at a distance of 75 metres. In this case, allowed a variety of angles. Scope is quite extensive. In the mining sector with the help of such a device is the delivery of minerals to the outside. Scraper conveyor for grain – an indispensable device for grain elevators and granaries, because it simplifies the process of material handling from rolling stock to bins and back. Quite often these units are found even in the engineering industry, where widely used for unloading and loading of bulk items.

Construction and principle of operation

The Device is a scraper conveyor is a fairly simple. By itself, it represents a box of rectangular shape, inside which a circle moves the chain with scrapers (from the loading place to the unloading point of the goods are carried). Not to mention that regardless of the type of vehicle and its areas of use provides for the use of metal boxes closed. The actuator is usually mounted on an independent frame. It is mandatory in the design guide, the purpose of which is to adjust the excessive voltage in a circuit and the response to its deflection.

The Basic principle of such a device, like a scraper conveyer, is based on a complete drawing of the product and is associated with the creation of traction due to the flexible chain. When the rotation of the motor pulls the tape special plates or buckets, clinging to the teeth of the sprocket. Product download occurs through the bunkers, the location of which in the course of operation, the user can choose for himself. As for the discharge, then it provides a constantly open hole located in the drive section.

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Design Features

The greater is the chain length, which is equipped with scraper conveyor, the higher the performance. Such devices are produced from stainless, carbon or galvanized steel. They may be fitted with one or two traction belts. In addition, these vehicles can be used open or closed trough. In the first case download of the product produced anywhere along the length of the conveyor. The second embodiment eliminates the possibility of scattering of the cargo and its weathering. With regard to the type scrapers and chains, it depends on the load for a certain period of time. Depending on functional purpose and characteristics of the vehicle can be equipped with different types of motors, gearboxes and other auxiliary equipment.

The Engine, chain and scrapers

Drag conveyor may be driven through different options of engines. It all depends on the width and length of the tape, and output requirements. Typically, such devices are used, the engine capacity of which is in the range from 1.5 to 45 kW.

A Distinctive feature of this type of conveyors is that the traction here is one or two tapes with scrapers. There are several types of designs – plate, fork forged and round link chain. All they are able to withstand the test of the gap, reaching the level of 90 tons.

As for scrapers, they are made of steel. Depending on the scope of further use of the device, they are covered with plates made of polymeric materials or high-temperature wear-resistant metal.

Advantages

As noted above, the scraper conveyor can be widely used in various industries where the production process is associated with the need for continuous movement of bulk materials in large volumes. Compared to other types of vehicles, they have several important advantages. Primarily in this case it is necessary to remember about high performance, because such a device (depending on version) capable of an hour to move a small distance up to 300 tons of cargo. Another advantage of the unit is the reliability of its design. Subject to the compliance manual and the proper care it will last a very long time. The vehicle is ready to smoothly function regardless of the temperature and humidity of the environment and terrain where it is installed. About any significant deficiencies of such devices can not speak.