RU1790729C - Rolling piler - Google Patents

Abstract

Usage: in the production of agglomerated metallurgical raw materials, namely, when loading raw pellets into a roasting machine. SUBSTANCE: guide plates are formed on the stacker frame 2 in the unloading part, forming a gable slope 9. The upper edge of the plates is located below the upper generatrix of the tension drum of the conveyor 1. 5 ill.

Description

Figure 1

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The invention relates to the production of agglomerated metallurgical raw materials, more specifically to the production of calcined iron ore pellets,

To load the raw pellets onto the roasting machine, a loading device is used including a swing stacker with a conveyor and a roller feeder.

With the help of a swinging stacker, the pellet distributed the yugs along the width of the roller feed. When the little things are eliminated, the pellets are finally uniformly distributed over the width of the roasting machine.

A known swing stacker comprises a conveyor mounted on a frame mounted on a support, the belt of which bends around the tension and drive drums.

Since the swinging stacker drops the pellets in a rather dense narrow stream, they are stacked on a roller feeder in the form of a zigzag roller, which is gradually pulled apart by rollers over the entire width of the feeder. However, such a dense initial laying worsens the elimination of fines, causes partial destruction of the pellets, therefore it is advisable from the very beginning to ensure a more uniform distribution of the pellets across the entire width of the roller feeder.

The purpose of the invention is to improve the distribution of pellets. For this, the stacker is provided with guide plates which are fixed to the frame from the discharge end of the conveyor under the upper forming part of the tension drum and are made in the form of a gable slide.

In FIG. 1 and 2 schematically show the proposed swinging stacker, side and top views; in FIG. 3 is a view A in FIG. 1; in FIG. 4 is a view B in FIG. 1: in FIG. 5 is a view B in FIG. 4.

The swing stacker includes a conveyor 1 mounted on a frame 2 with a swing axis 3, consisting of a conveyor belt 4, a tension drum 5 and a drive drum 6.

On the frame 2 of the stacker, in the unloading part, guide plates 8 are formed using the bracket 7, forming

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gable slope 9. The upper edge of the plates 8 is located below the upper generatrix of the tension drum 5 of the conveyor 1. In a side view (Fig. 5), the plates are inclined to the horizontal at an angle a of 30 °, and in the end view (Fig. 4) - at an angle / 3 30-45 °. The plates 8 are fastened to the bracket 7 by bolts 10. Due to the oval holes 11, the angle o can be adjusted. installation of plates.

The swing stacker operates as follows.

Raw pellets from the conveyor conveyor (not shown in the drawing) are poured onto the conveyor 1 near the swing axis 3 of the stacker. They are transported via conveyor 1 to the tension drum 5 and here they are scattered onto the roller feeder 12. Pellets falling from the conveyor fall into the shear formed by the plates 8, due to the slope of which they are distributed over a width Г significantly exceeding the width D of the pellet stream on the conveyor 1. At the same time, further uniform distribution of pellets on the roller feeder is greatly facilitated, more efficient separation of the fine substandard fraction is achieved, uniform wear of the feeder rollers and e so it increases their durability.

Since the slit is set on the path of the pellets falling from the stacker to the feeder, the dropping height of the pellets decreases, while their deformation and adhesion are reduced. This also contributes to fan-shaped pouring them from the slope.

By loosening the bolts 10, it is possible to change the angle a of the skid installation, achieving optimal distribution of pellets.

As for the angle /, it is most advisable to select it close to the angle of repose of the pellets, i.e. / 30-45 °. In this case, a maximum size G of pellet distribution on the feeder is provided. With a larger value of / the size of Γ decreases, and with a smaller value of / 3 a layer of pellets will adhere to the slope at an angle of repose. At the same time, the device will remain operational, however, due to the increased friction on the slope, the size Г also decreases.

Claims (1)

SUMMARY OF THE INVENTION A swing stacker comprising a conveyor mounted on a frame mounted on a support, the belt of which surrounds the idler and drive drums, characterized in that, in order to improve distribution of pellets, it is equipped with guide plates, which are mounted on the frame from the discharge end of the conveyor under the upper forming part of the tension drum and are made in the form of a gable slope. /. urn View 5 Phase 4 Fie.Z