Designing and production of machinery for loading and unloading of free-flowing materials

In order to prepare glass mixture and different multicomponent mixtures one often uses raw materials supplied in big bags. Therefore a big number of transportation and processing operations in relation to loading and unloading of big bags is performed on the shop floors.

 “Stromizmeritel” Closed JSC manufactures several modifications of big bags unloading stations and two models of loading stations.

 The big bags unloading station SRB-1 (СРБ-1) consists of a frame, a conic receiving hopper with a rubber packing and a grid for lumps holdup, knives for big bags cutting and an unbalanced mass vibration generator. In the process of unloading at SRB-1 (СРБ-1) a big bag is held by a lift and transfer mechanism that’s why the unloading of different materials is performed sequentially. For parallel unloading of several big bags the unloading station SRB-2 (СРБ-2) is used, the structure of which includes an additional frame, adjustable for height and cross traverse, to which a big bag is fixed. The presence of a traverse allows using the lift and transferring mechanism for other operations after the big bag is fixed for unloading.

 The station SRB-4 (СРБ-4) has smaller dimensions and is recommended for usage in space-limited process plants.

In the process of filling bags the big bag loading stations UZB-1(УЗБ-1) and UZB-2(УЗБ-2) manufactured by “Stromizmeritel” Closed JSC allow to control the weight of the materials filled as per digital display of the control block. In UZB-1 (УЗБ-1) a big bag is put directly on a strain-measuring platform scales, and in UZB-2 (УЗБ-2) – on an electric truck which moves from a weight-measuring position to a take-off position of the filled big bag. The stations are equipped with air supply nozzles for blowing bags and aspiration pipe-bends for dust-loaded air.

Louvre-type grates of different structure with movable (bending) and fixed flaps manufactured by “Stromizmeritel” Closed JSC are used to reduce dust emission when unloading dusty materials from big bags and hopper wagons into receiving hoppers. It is possible to use louvre-type grates for overloading of small lumps materials.

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