SU34851A1 - Adaptation to sorting for the distribution of sorted mixture sieves - Google Patents

Description

The proposed adaptation to screen sorts can be used in universal machines in which, depending on the type of material being sorted, it is necessary to change the sequence of passing the mixture on separate sieves. The device is made in the form of mutually alternating channels that distribute the sorted material through sieves, and to change the direction of movement of individual fractions mixes on sieves in it are applied inclined valves installed with the possibility of movement in the cuts of the walls to catch and serving for outputting from the last fraction varying sortable mixture.

In FIG. 1 and l depict two main schemes for the distribution of a sortable mixture by sieves; FIG. 2- a general perspective view of the proposed adaptation t by a partial section; FIG. 3-piece fixture.

The proposed fixture is mainly used in screen sorts with two pairs of sieves located one under the other so that the top pair has a slope in one direction and the bottom pair in the other. Under each sieve there is a skatna board, and the sloped boards located

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Under the upper sieves of each pair are made retractable. At the beginning of the upper sieves of both pairs, a mixture distributor of one or another device is installed, which allows the material entering the sieve to be divided equally between the two sieves or send it only to the upper sieve. In the first case (Fig. I) in its place, and a pair of sieves give four fractions: two gatherings and two passes, which are identical in their composition and can therefore be joined in pairs, as shown in FIG. 1. In the second case (Fig. 1), the sloping board from under the upper sieve is removed and the passage through the upper sieve enters the lower one, where it is divided into two parts: the passage. Thus, in this case, the upper pair of sieves provides three outputs. The lower pair of sieves (not shown in the diagram) is arranged in the same way as the upper one. With regard to the material inlet to the lower pair of sieves, it should be possible to direct it differently, namely, to let the material parallel to both sieves, divide it in half on the distribution device, or to let the material only on the upper sieve, or to let different material on each sieve . Sieve screening with the above arrangement of sieves, equipped with a distributor that allows incoming material from the upper sieves to be directed to the lower one in different ways, makes it possible to divide the sorted material into three, four or five fractions. The proposed fixture is intended to direct individual fractions of the mixture from one pair of sieves to another in various combinations.

The device consists of vertical channels ... and, l,. M, n, o, n, p, breaking the material coming: the upper pair of sieves into separate streams (Fig. 2). Grain to these channels is supplied from sieves a and 5 and cattle boards under them along boards along vi x. The exit from the sieve and b- / and 3 is directed through the outlets to the channels and, m, o. .. as shown in FIG. 2 arrows.

The passages through these sieves, i.e., descents 2 and from the sloping boards, get into the intermediate channels l, n, n v (so on. If the ramp is from under the upper sieve and removed, then channels l, n, n only the second sieve b-4 passes over the second pitched board. The presence of valves in the channels: vertical g and inclined e allows the grain flows to be directed differently. Valves e can enter into the corresponding cuts in the channels and block the path to the grain flow , its output from the vertical channels through the openings of the w. out. In Fig. 2, the valves are installed in this position, that grain flows from channels l, n, p .., which fall onto inclined valves e, which block these channels, are brought out. In the channels and, m, o, p, grain flows that do not encounter any obstacles in their path These channels go down and get on the ramp f, from where they come to the third sieve (upper sieve of the second pair). By pushing the valve, you can switch flows, i.e. send the sheds 1–3 through channels e to the outside, and the aisles

(descending from the ramp boards) start down on the ramp f.

The switching of the valves is shown separately in FIG. 3. In the lower part of the drawing of FIG. 3, the position of the valves corresponds to FIG. 2: aisles 2 go through the valves e, gatherings / fall down. By moving the valves (the upper part of the drawing of Fig. 3), the direction of flow changes, namely the passages 2 fall downwards, and the gatherings 7 go along the valves e.

In addition to the described valves, there are two more rotary valves in the fixture.

If it is necessary to remove the upper sieve and pull it out of the car separately (in those cases when the skid board under this sieve is removed), then the valve k is closed. Then, the overhang /, the passage through this valve (see the channel and in Fig. 2) falls on the pit side and is removed from the machine. If the valve to is open, the gathering / falls into the channel and mixes with the gathering 3.

In cases where the valve e-3, 1, or 2 - {- 4 (depending on the installation of valve e and valve k) must be directed to the fourth sieve, the valve opens, and the valve exit e falls then on the ramp y, from where it is directed to the fourth sieve (see exit from the canal in Fig. 2). When the valve is closed, the valve exit e gets onto the pitched board and is taken out of the machine.

The subject matter of the invention.

Adaptation to sorting for distributing the sorted mixture over sieves, made in the form of vertical, mutually interleaved channels, characterized in that to change the direction of movement of individual fractions of the mixture through the sieves, inclined valves e, installed with the possibility of movement in the slots of the channel walls, are used to remove last one or another of France sorted mixture.

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