SU1214250A1 - Apparatus for separating loose materials by size - Google Patents

Description

2, a device according to claim 1, 1, characterized in that the distribution body is made in the form of a disk with a corrugated surface on the side of the chute.

3, The device according to Claims 1 and 2, characterized in that the disk is provided with a dust and moisture separator, made in the form of a hollow perforated cone, installed

I

This invention relates to separators for separating dry and wet bulk materials by size, in particular, sands and round solid materials.

The aim of the invention is to improve the quality of the separation.

Figure 1 schematically shows the proposed device, a General view; Fig. 2 is a picture of the movement of material particles on the surface of an annular rolling disk; Fig. 3 shows a drainage nozzle; Figures 4 and 5 show the interaction of particles with an annular collar.

The device contains a casing 1, a cover 2 for orientation of the material to be sorted, which goes into an annular shoulder 3 and mates with a loading chute 4 and a distribution organ in the form of a disk 5 forming a hollow perforated cone b, into shaft 7 of mating with drive 8 by means of coupling 9, designed to distribute the sorted material under the action of centripetal force and create conditions for separating moisture and silt impurities or dust from the sortir About the material through the perforated cone and the holes 5 formed by the spokes when the disk 5 goes into the shaft 7, fixed with brackets 10 to the casing 1 separation rings 11, equipped with curvilinear knives 12j forming discharge channels 13, above which the inclined protective disk is fixed under the loading chute The connecting pipe is installed under the disk along its axis and communicates with the cavity of the perforated cone,

4. The device in nn, 1-3j. characterized in that the surfaces of the vault, the disk and the perforated cone on the side of the chute are made of polyurethane.

ki 14j designed to prevent the separated fractions of the material from entering adjacent feed channels located under the distribution rings 11 on

supporting 15 and centering 16 rollers kinematically connected to the drive 17, an annular disk 18 which performs the function of the bottom of the receiving and

0 discharge channels formed by the rings 11 and the knives 12, designed to move the sorted material to the discharge side, with the working surface

5 of the annular disk 18 is covered with rubber and forms with the lower edges of the separating rings 11 a minimum gap, a sealing sleeve 9 connected to the outlet nozzle 20 and coupled to the distribution disk 5 with a possibility of sliding for hermetic connection, discharge openings 21 and inclined chutes 22,

5 to discharge the sorted material onto the conveyor 23

Through the perforated cone 6, moisture or drink is sucked away, and the remaining material under the action of

0 of its own weight and centripetal force rolls over a conical surface, which contributes to its better distribution over the entire surface of the disk 5. The disk 5 is made with a corrugated working surface to hold the particles of the bulk material during rotation of the disk in order to impart particles to the velocity arising under the action of the center - rapid acceleration. The location of the disk 5 under the cover 2 is due to the fact that during its rotation the particles on the disk 5 acquire speed and when separated from the disk 5 they must fly Lz on the surface of the arch Krishl 2,

The design of the lid 2 with a vault ending with an annular collar 3 is due to the fact that the detached particles of the sorted material from the disk 5 move along a free fall path, and this trajectory coincides with the curve forming the vault. In this case, the particles slide along the arch before the collision with the annular collar 3. From the annular collar, the particles fly apart at different angles, depending on their dimensions, and fall into the corresponding discharge channels 13 (see Figures 4 and 5)

The mating of the cover 2 with the casing by thread is due to the fact that as the working surfaces of the cover 2 and the disk 5 are worn, the clearance must be adjusted, i.e. maintain an optimal distance between the lid 2 and the disk 5, taking into account the size of the fractions of the material being sorted.

The use of a sealing sleeve 9 is necessary for dewatering and separating mud impurities from the sort material. By replacing the sealing sleeve with a dust collector nozzle 24, the device can be used to sort dry bulk materials containing dust.

The device works as follows.

In the working state of the device, a wet bulk material, for example sand of 0-5 mm size, flows through the loading chute 4 to a rotating distribution disk 5, where water is mixed with admixture of clay or fine particles from the sorted material 1a through a perforated cone 6, a sealing sleeve 19 and under the action of centrifugal force, the sand particles released from impurity and moisture become velocity and fly off the distribution disk 5, slide 2 along the surface of the roof of the arch 2 before the impact with the collar 3. From ltsevogo collar 3 sand particles bounce at different angles to respective receiving channels formed by the separating ring 11 during rotation of the channels of the annular disc 18 vschelennye sand fraction

moving along the receiving channels to the discharge channels 13 and the blades 12 are diverted to the discharge ports 21, from where along the inclined chutes 22 they enter the belt conveyors 23.

When separating bulk material with high humidity, the selection of fine impurities (clay) or the smallest fraction of the material can be accomplished by suctioning

perforation of the cone 6 of the disk 5. The perforated cone 6 contributes to a better separation of the material from moisture with the further movement of the material particles under the action of centrifugal force.

The separation of dry bulk materials is carried out in a similar way, for which it is necessary to replace the sealing sleeve 1 9 with a lead pipe.

the nozzle 24 and install the corresponding perforation of the cone 6.

The design of the working surface krish1ki 2 with an annular collar 3, a disk 5 and a cone 6 of polyurethane

due to the use of a device for processing abrasive materials.

The increase in the efficiency of the device as a result of the rebound of sand particles at different angles is due to the fact that the height of the annular collar 3 is constant and the diameter of different particles varies. For example, the height of the collar 3 is 0.5 mm; then particles with a diameter of less than 1 mm are retained by the collar 3 and fall under their own weight, i.e. almost at a right angle to the initial direction of motion obtained from disk 5, while ter all the kinetic energy. Particles with a diameter of 1 mm or more when striking an annular shoulder 3 receive a rotational moment and bounce off the shoulder at different angles, depending on the angle of displacement of their point of contact when struck with a collider collar 3 relative to the diameter of the corresponding particles, along which speed.

Moreover, the larger the particle diameter, the greater the angle at which their point of contact with the annular collar is displaced relative to the diameter is.

consequently, their deviation angle is less than the initial movement.

The direction of movement of the particles of the sorted material is initially provided by the lid 2, which provides the same trajectory along the upper level of each particle relative to the annular collar 3.

The number of separation rings 11 and the height of the ring collar 3 are selected depending on the physical properties of the material being divided and on the technological requirements for the fractional composition of the product.

2i

editor L. Veselovska

F. B

Compiled by About „Popov Tehred m. Parozay

Order 822/13 Circulation 566 Subscription

VNISTI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Branch PPP Patent, Uzhgorod, st. Project, 4

Proofreader E. Sirohman

Claims (4)

1. DEVICE FOR SEPARATION OF BULK MATERIALS BY DIMENSIONS, including a casing with loading chute, dust extraction pipe, distribution rings and loading windows, a distribution body installed under the loading chute, a drive of a distribution body distinguishing with. I mean that, in order to improve the quality of separation, the casing is equipped with a cover coaxially mounted above the distribution body with the ability to control the gap between them and having an inner surface in the form of a vault with an annular collar on the periphery. _β Figure 1 SU ... 1214250> 2. The device according to p. 1, characterized in that the distribution body is made in the form of a disk with a corrugated surface on the side of the boot heat. 3. The device according to claims 1 and 2, characterized in that the disk is equipped with a dust and moisture separator made in the form of a hollow perforated cone mounted on the disk under the loading chute, while the dust extraction pipe is installed under the disk along its axis and communicates with the cavity perforated cone. 4. The device according to claims 1 to 3, characterized in that the surfaces of the arch, disk and perforated cone from the side of the charging chute are made of polyurethane.