SU735324A1 - Apparatus for sorting loose materials - Google Patents

Description

(54) DEVICE FOR SORTING BULK MATERIAL

 The invention relates to the technique of sorting solid materials, in particular to devices for sifting bulk materials. A device for separating bulk materials is known, having a rotating hollow shaft carrying a chamber made of coaxially arranged cylinders, one of which is made of metal mesh and intended for sifting fine sand, air supply chamber and dust suction {. . The disadvantage of the device is cumbersome and low specific productivity. A sorting device is known, having a drum, a spiral screen between the turns of which a tray is placed along its entire length, loading and unloading mechanisms 2. In this device the suspension is filtered due to the pressure created by the centrifugal forces of the rotating drum. The disadvantage of this device is the impossibility of sifting in it the dry bulk material of eial. The purpose of the invention is to ensure the possibility of screening dry bulk material, this is achieved by the fact that the spiral. This SITO and lototics are connected to the drum and placed in its cavity, and the output ends of the spiral sieve and the tray are offset relative to each other Yaruha along the length of the drum circumference. FIG. 1 shows a device for casting bulk material, general view; FIG. 2 is a section A-A and FIG. 1 .. A device for sorting bulk material has a shell 1, which is equipped with a discharge mechanism 2 with windows 3 and 4; intended for unloading sand by fractions and damper 5. In the inner cavity of casing 1 a drum 6 is placed, rigidly connected to a horizontally driven drive shaft 7, which is mounted on bearings 8 and rotates from a drive through chain gear 9 (not shown). The central part of the shaft 7 is configured as a screw 10, designed

735324

for feeding material through the windows 11 into the drum cavity b.

 .. The sieve 12 is made in the form of a cylinder rolled up in a spiral, if supplied with rtBB | ) STI Mi 13 for sifting fine necita, and tray 14 is installed with spiral turns of the sieve along its entire length, with the output ends 15 and. ,,, 16: the sieve and tray are mixed relative to each other's length along the circumference of La; Rabana b,,. :. ,

Sieve 12. and tray 14 are placed in J; cavity drum 6 and hard with. him connected. ..

The boot mechanism 17 is installed on the casing 1. In addition, the direction of rotation of the shaft 7. is opposite to the i direction of the turns of the spiral.

The device for sorting bulk material works as follows, -ipaaoM,. . . . . ;

 The sand to be sorted is fed into the loading mechanism 17. From the drive through the chain drive 9, the shaft 7 is rotated and the drum 9 is rigidly connected to it. As a result, the sand is fed through the window 11 through the screw 10 into the drum and distributed. On a sieve. 12 When the drum rotates, fine sand wakes up through the holes 13, hits tray 14 and moves to the periphery, moving along tray 14 along a spiral path. At the same time, coarse granules, sand, are in the middle of spiral sieve 1 to the upper end of 15. Approaching

to the output ends 15; and 16, the sand is increasingly thinner than UTB. on the surface of the sieve 12 and, tray 14;,;:

 Once, the load of sand occurs through the unloading mechanism 2,. At the same time, the valve 5. overlaps; windows 3 and 4. subsequentially, in s; dependency, and from-grout; narrow fractions. . . . ; , n..fc .s such execution. devices poE-. Vol. Sortyou bulk materials with a large specific production capacity, -; V -:. - one --.

Claims (2)

1. USSR author's certificate No. 447180, cl. B 07 B 1/22, 31..01,72. 2. US patent number 2995246, cl. 209-362, published. 08.08.61 (prototype) .... . sixteen 1h fuz.