SU845882A1 - Apparatus for separating materials - Google Patents

Description

one

The invention relates to the enrichment of minerals, namely, installations for sieving and dedusting wet materials, and can be used in the coal, mining and construction industries.

A known device for dedusting and sieving materials, including an air supply system attached to the housing, a composite screening surface, loading and unloading units, dust collection, the housing being equipped with guides in which the ends of the composite screening surface are located, the components being connected by hinges, and the middle part has a hinge attached to the housing 1.

It is also known a device for separating materials in a gas stream 2. The disadvantage of these plants is the inadequacy of the schemes for adjusting the position of parts of the composite sieve surface. In particular, there is a limited rotation due to the small gaps between the guides and end sections of the composite screening surface, the inability to adjust the position of the parts of the composite

A) The surface is different relative to each other.

o friend that limits the range of

operation parameters, makes installation difficult and

0 quality sifting and dusting, t.

1 narrows its technological capabilities

and. as a result, it reduces the overall effect of its work.

The closest technical rec

10 This invention is invented

solubility for material separation,

Must consistently set to

cad sloped work surfaces in

filled, for example, from trays, shcharnir

fixed in the casing t

15 measures and means for changing

work surfaces 3.

However, this device has no means of fixing the working surfaces when turning them around the hinges of the hinges. Therefore, the issue of reliability and convenience of fixing in this device is not resolved (The purpose of the invention is to ensure the comfort and reliability of fixing the working surfaces of the device.

This goal is achieved by the fact that in a device for separating materials containing inclined working surfaces successively cascaded, for example, made of sieves hinged in the housing of the separation chamber, and means for changing the position of the sieves. Each means of changing the position of the sieve is made in the form of a balancer. fixed in the hinge of the sieve mount, and having clamps for engaging with the housing of the separation chamber.

This embodiment of the device provides stabilization of the position of the working surfaces during operation.

The drawing shows this device.

The device comprises cascade-mounted inclined working surfaces 1-3, made, for example, of sieves, fixed by hinges 4-6 in the housing 7 of the separation chamber 8. Each means for changing position, for example, sieve 1 is made in the form of a balancer 9, hinged in 4 hinge sieves. The balance bar has a latch 10 for engaging with the housing 7 of the separation chamber. The device also has a fan 11 and a cyclone 12 communicating with it and a chamber, a discharge chute 13,

The device works as follows.

The source material enters the working surface 1, installed at an inclination angle of about 35 °, where initial screening takes place with simultaneous preliminary dusting and preparation of the material for the subsequent main dusting - uniform distribution of the material over the entire width of the screening surface with the formation of the same thickness and loosening of the layer . Then the material enters the working surface 2, which is installed at an angle of inclination of more than 45 °, on which the main dedusting of the material with simultaneous screening is carried out by means of an air stream passing it over the surface downwards through the screening surface. The material then enters the work surface 3, which is installed at a smaller angle than the first two sections for the final removal of fines due to screening with dedusting. The angles of the non-slope of the working surfaces to the horizon in each particular case are selected depending on the qualitative and quantitative characteristics of the load on the installation. All working screening surfaces are installed, if necessary, at one angle of inclination. The isolated undersize product (separated small classes together with dust) from the receiving funnel is transported by the circulating AIR flow to the dust cyclone 12, in which dust is deposited together with the separated fine granular material, thereby preventing the cyclone from clogging. Sifted from the little things and

dedusted naked product through the discharge chute 13 is fed for further processing depending on the technological scheme of the processing plant. A part of the circulating air flow is supplied to the dust collector with a suction fan and after cleaning is released into the atmosphere, and the main volume of air from the dust cyclone 12 by the fan 11 through the air ducts and the umbrella is returned to the chamber 8 to dedust. Depending on the range of load variation in terms of volume, sieve composition, dust content and moisture of the source material, the screening and dedusting process is controlled by independent rotation of the working surfaces during

the help of balancers 9 relative to the hinges of their attachment and when the desired angle of rotation is reached, their position of the fixture together with the working surface relative to the body 4 of the dedusting chamber using clamps 10 and locking devices. The proposed device provides reliable and independent adjustment of the angles of rotation of the parts of the screening surface in the required range of to increase productivity.

Claims (3)

1. USSR author's certificate according to application no. 2696008 / 29-03, class В 07 В 1/46, 1978. 2. USSR author's certificate number 486814, cl. On 07 May 4/08, 1973. 3. USSR author's certificate No. 426717, cl. B 07 B 1/04, 1972 (prototype).