SU36793A1 - Device for scraper (short) traps - Google Patents

Description

The short-term traps known hitherto have the disadvantage that the incoming water flows at high speed into the basin of the trap, moving a low layer from 0.7 to m along its bottom. Due to the high speed of this stream, the trap efficiency is greatly reduced, and the trap volume in relation to the volume of water entering it in I minute is 333 times more than the last because the passing water flow takes up only a fraction of the trap volume.

The proposed device eliminates this disadvantage by jointly uniform movement of water over the entire cross section of the trap basin by means of a pocket with a deaf bottom 4 and a side wall 6 with openings 7, 8, 9 (Fig. 3) and planes inclined to its longitudinal walls placed inside the pool 2 (Fig. 1 and 2), contributing, due to the low height of the channels formed by them, to a more rapid sedimentation of the fiber and the formation of clots.

crawling to the scraper device 11 (Fig. 1).

The subject matter of the invention.

1. A device in scraper (short) traps for wastewater of paper, cellulose, and the like, characterized in that, in order to shorten the path and increase the rate of fiber deposition inside the pool, a number of planes parallel to its longitudinal walls are placed 2 serving to form a fiber bunch (Figs. 1 and 2).

2. The form of execution of the device indicated in paragraph 1, characterized in that for a uniform inlet of water into the pool of the trap inside it, a pocket with a blind bottom 4 is placed inside the trap, the inner wall of which is provided with a number of horizontal openings 7, 8, 9 of different the diameter of the height of their placement for the purpose of uniform intake of water into the pool throughout its entire height (Fig. 3);

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FIG. I