SU1050756A1 - Apparatus for classifying loose material - Google Patents

Abstract

DEVICE FOR CLASSIFICATION OF BULK MATERIAL, including a frame, in the sidewalls of which the drive rolls with gear are fixed. discs placed between the disks of adjacent rolls, distinguished by the fact that, in order to improve the quality of the classification and reliability of the structure while reducing the time spent on mounting the working surface, the face of the teeth of the disc, relative to the direction of rotation of the rolls, coincides with the radius of the latter, and the angle between the rear and the front face of the teeth. They are chosen in the range of 55-60, with the sidewall of the frame being cut along a line passing through the axes of the rolls, while one of the resolved parts of the sidewall is additionally divided into two component (A part. SP 05 cl fieL

Description

The invention relates to the mining industry, in particular, to devices for the classification of bulk materials, such as milled peat.

A device for classifying milled peat is known, comprising a frame with drive shafts. ryh placed surface classification I.

The disadvantage of the device is that its design is relatively complex and as a result, reliability of operation is reduced,

The closest to the proposed technical essence and the achieved result is a device for classifying bulk material, including a frame, in the side walls of which there are fixed drive rolls with toothed discs placed between the discs of adjacent rolls of OY.

A disadvantage of the device for classifying a bulk material is that the relatively high probability of foreign matter entering the cell is screened, the cells are clogged with wet material and the ratio of heat to the processed material decreases reliability and performance. In addition, significant loss of time on: installation of the working surface. .

The purpose of the invention is to improve the quality of the classification and reliability of the structure while reducing time costs and the installation of the working surface.

The goal is achieved by the fact that in a device for classifying a bulk material, including a frame, in the side walls of which drive rolls are fixed with toothed disks placed between the disks of adjacent lugs, the face of the teeth of the disc, rear relative to the direction of rotation of the rolls, coincides with the pg1dius of the latter, and the angle between the rear and the front face of the teeth I choose in the range of 55-60, with the sidewall real cut along the line passing through the axes of the lugs, with one of the split parts of the sidewall further divided into two integral part.

Fig. 1 shows a device for classifying a bulk material, side view; in fig. 2 - device iid from above (without casing and chute} in FIG. 3 - section A-A in FIG. 1J in FIG. 4 - side plates. PCIMB; in FIG. 5 - section in FIG. 2; FIG. scheme of forces acting on foreign inclusions.

The device contains disks 1 with zyustl 2, in which the rear faces 3

are part of the radial lines, and the front edges 4 are angled about 55-60® to the rear edges 3. The discs 1 are welded to the hubs 5, which are mounted on parallel

5 located rolls 6 on keys 7 and assembled on rolls in the form of packages held in place by means of shoulder 8 and nuts 9, Burtik 3 of the next roll has a greater width in order to mount the disks of the next roll with the entry between the discs of the other. The gap between the discs 1 is selected depending on the required size of the prepared material.

S la. Each roll b is installed in under the studs 10, housed in housings of i-bearings 11, which are kept from turning by bolts 12. Bearing housings 11 have annular

0 grooves 13 for installation in the sidewalls in the form of plates 14, which form a support frame 16 that is compatible with the crossbars 15. The plates 14 are cut along the axes of the holes 17

5 6 under the bearing housings 11 and consists of the lower part 18 and the upper 19. The upper part L9 of the side plate 14 is additionally cut into two parts of rolls b with disc packs and is attached to the lower

parts 18 of plate 14 are studs 20. Blocks of two sprockets are fixed on the shanks of the bolsters B. KE Ainiy left roll has one star in the direction of rotation. Girl 22. Stars 5 of the next rolls are connected by chain 23 and have a different number of teeth, resulting in each subsequent shaft, away from the ground, has a high frequency

0 rotation The drive of the first roll is realized by means of a chain lock 24 from the electric motor through a gearbox (do not show).

The device has a casing 25, receiving

5 chute 26 installed above

the first two rolls, estrus 27 Mej | Which fraction and oestrus 28 major. The casing 25, the heat pipe 26-28 through the rubber gaskets 29 are attached to the device in the || - me 16 device.

The device for classifying the fat feeding material works as follows.

Original SF (milled peat). comes on heat 26 on the first two |

 In the lash 6 with the discs 1, All the rolls with dts kami rotate in the same direction (shown by arrows). The fine fraction of milled peat (less than 8 mm) is sifted between the disks 1 and flows into the melting 27 of the small fraction. A coarse fraction of milled peat., Along with foreign substances, is transported along the tops of the teeth of 2 discs 1 in the direction of rotation.

5 and discs of the last shaft are discharged into a large fraction (from seeding).

Making the back faces 3 of the discs 1 in the direction of rotation right and being part of a radial line, and the front faces 4 forming the backside of about 5560 ,, reduces the likelihood of seizure of the discs with irregular inclusions. In addition, in the range of 55-60, the front faces of the teeth of the discs do not work to cut foreign inclusions (but to push the foreign inclusions up (Fig. 6) while transporting

; inclusions on the tops of the teeth in the screenings. When the discs rotate, the front edges of the 4 discs of 1 large fractions of milled peat (8-30 mm) break up and crack due to the relatively small strength of the latter, as well as the cutting of the fibrous part of peat.

When using the proposed invention, not only the quality of the classification is improved, but also the reliability of the construction, the possibility of bore plates in the kit, resulting in a parallel installation of the rolls.

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Claims (1)

DEVICE FOR CLASSIFICATION OF BULK MATERIAL, including a frame, in the sides of which drive rolls are fixed with gears, disks placed between disks of adjacent rolls, characterized in that, in order to improve the quality of classification and reliability of construction while reducing time costs on the installation of the working surface, the edge of the teeth of the disk, rear relative to the direction of rotation of the rolls, coincides with the radius of the latter, and the angle between the rear and front edges of the teeth is selected in the range of 55-60 °, and the sidewall of the frame cut along a line passing through the axis of the rolls, with one of the split. parts of the sidewall additionally (completely divided into two components'.