SU1393482A1 - Production line for making crushed stone and ground limestone from carbonate spoil heap - Google Patents

Description

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nn includes rotary crusher, conveyor 1, hammer crusher 2, tray 3, rotary throwing device 4, steeply inclined screens 7, 8 with cascades of strings 9, 10 arranged longitudinally and connected to working chambers 19, 20 of a vibrating washer 17. Working chambers washing the machines are cylindrical, each of which is mounted with a gap relative to the bottom of a perforated plate made of polyurethane. In the working chambers

intensive mixing of the material grains occurs, active contacting of the grains with each other, resulting in self-cleaning by rubbing dust particles from the grains by the grains themselves against each other, contacting in a vibrating and rotating material flow, simultaneously blown from the bottom upwards by jets of compressed air, flowing through the plate apertures . The cleaned grains of rubble are brought to the conveyor. 2 hp f-ly, 2 ill.

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The invention relates to the production technology of nonmetallic building materials, which are enriched in durability to the shape and purity of grains — oeton fillers from dumps of carbonate rocks, as well as a by-product of limestone flour.

The purpose of the invention is to increase the effect of enrichment.

FIG. 1 I31.1 bracelet ooogatel on line, general view; in fig. L - section A-A on fi. one.

The processing line for the production of rubble and limestone from carbonate rock heaps contains a conveyor 1, transmitting loosened and pre-crushed material, hammer crusher 2, tray 3, rotary throwing ycTpoficTBO 4, having a shaft 5 with beaters 6, whipping inclined screens 7 and 8 equipped with non-locking longitudinal strings 9 and 10 in the form of cascades (strings 9 of the screen) have a diameter of 2-3 mm, gaps between the strings are 3 mm, strings of 10 of the screen 8 have a diameter of 7-10 mm, gaps between the strings are 7-8 mm. Strings 9 and 10 are made of elastic wear-resistant material - polyurethane.

Screens 7 and 8 at the top are equipped with an aspirating shelter 11, bottom with tray 12, conveyor 13, for collecting and transporting a sublattice class of material 0-5 mm in size (associated product - limestone flour), tray 14 , for collecting undersize rubble fraction of 5-10 mm and tray 15 for collecting undersize rubble fraction of 10-20 mm.

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From screen 7, grains of a nares-like class follow through intermediate tray 16 to screen B.

Under the chutes 14 and 15 there is a vibratory washer 17, which consists of two transverse plates 18, two working chambers 19 and 20 and a vibrator 21.

The working chambers 19 and 20 have hoppers 22 with aprons 23, unloading thresholds 24 and sealing aprons 25.

In the lower part of the gutter have pipes 26 with 27, pipes 28 and valves 29.

In the upper part of the gutter there are nozzles 30 for bringing the dusty air to the aspiration system (when processing the material by the dry method, with raw materials up to 4%) and perforated pipes 31 and 32 (for supplying water for irrigation when cleaning the grains with wet stone by the method of processing raw materials having a moisture content of more than 4%).

Chambers 19 and 20 are equipped with replaceable wear-resistant perforated cast working plates 33 made of polyurethane, on the outside of which there is a series of truncated cones, and the height of the support bosses is reduced to the edges of the cards.

When mounted, the plates 33 are rolled up into a roll, inserted into a chute, where they are straightened due to elastic forces, pressed against the inner surface; the chute is attached along the edges of the cards, with a gap in the air - 35 between the outer hundred

RHOWA plate 33 and the inner surface of the gutter. The perforations in the plates 33 have the shape of truncated cones, the smaller bases of which are located on the side of the working surface, which ensures the least clogging of them when cleaning the grains with a wet method.

The two transverse plates 18 at the ends have brackets 36, with which the machine assembly rests on shock absorbers 37. Below the relief thresholds 24 are trays 38 and 39 and conveyors 40 and 41.

The concentrating line for the production of rubble and limestone flour from otvapes of carbonate rocks works as follows.

Slag waste with possible large pieces of scrap rock, loosening and crushing of rocky pieces of size, for example C-20 mm, in a rotary crusher (not shown) by conveyor 1 is fed to hammer crusher 2, where additional lumps are loosened, igchidl; :: removal of weak grains and grains of weakness in strength, as well as additional control calibration of rubble grains not exceeding 20 mm in size. Then the mass of the material flows through the tray 3 into the rotor throwing device 4, into the zone of the rotor 5 with beaters 7, with the help of which it is distributed onto the high-angle screens 7 and 8.

The grains of material from blows with bilami 6 acquire the speed and direction of flight along screens 7 and 8, preliminarily distribute the size of their zones and at the same time cover all screening surfaces.

The preliminary classification of the material into size zones occurs due to the difference in the mass of the material grains, the acquisition of the corresponding grain mass of energy, flight speed and the distance.

3erifa 0-5 mm in size acquire less energy and, therefore, fall out of the flow of flying material earlier, sink to the roar 7, r; if, between: 3 mm strings, and ear - L ,, h g in pg.dr - shetnym class for tray 12 -.1;: do. T - a conveyor 13 as an accompanying additional product - limestone flour.

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The grains of crushed stone are nested 1 iii i o; -: jjat c a i-, a3MepoM more than 5 mm from i rohot 7 along intermediate trough 16 sec. On the screen 8, where they are further sorted.

Grains of a size less than K) mm iiiK); .. - dt into the undersize class and along tray 14 follow into the trough 19 of the enamelled vibratory washing machine 17.

Grains of superlatite class;) ssa pas. u i.iri 10-20 mm from screen 8, from the bottom and; h of surfaces 10, along tray 15 follow to the second trough 20 of the washing machine 17.

Thus, two separate; x streams of classified rubble, the zorn of which is enriched in strength and form, enter the chambers 19 and 20 m from the cleaning of the grains from adhered organic particles.

Cleaning grains at. 1 material less than 4% is carried out dry in working chambers; ha :. 1st,; 2 (flushing trenches 17).

Under the action of circular knees working chambers 19 and 20 occurred li li; intensive (5e mixing} P1e ze-ptrH riapa mat, active contacting is mutually mutually in the rotating drill-pin rule) and porsmeshivch.- along the stream chute, resulting in self-cleaning oTTi-π pi particles with grains the very grains of each other, 1 vibrating in vibriruya; er-; and a rotating flow of material. At one time, about rij 4 is blown from bottom to top by jets; 1 air, coming through the perforations of the plates 33 from the cavity 35, between the outer surface of the plate 33 and the inner no B.JpxHocT-i i chamber 15 and 20.

Free py: 1ev; DN1,;, -, which are separated from schs-11, are carried out by the streams T.:Mi.ri:cn C ioz; 1L .-: l up} the area above the flow fr -, - / pi-: a,: a where it is sucked off. chsr-zlgrubs JO into the aspiration system.

Refined grains -; 7e;) Eva.ip, set the thresholds 24 and, under the compaction of the plant ш 25, trays 38 and 59 follow conveyors 40 and 41 (ivoii-- 40 - crushed stone F1) and .. ;; un - K mm, on the conveyor 41 - the shcheon fraction 10-20 mm).

Claims (2)

one ; I: M..i i4 iJii, i, ia () o: iee ./, riiijiKa. 1st and 11th particles (: CHI .GK 1 shibn;:; a:; 1;; f- i-; aj. IiMOL-; megtst .--.ejii.ix. Fr | | 1 - chi / gits, i .ML4: TO ch rrciru: -i.: i iiiirni, material () lui ierf .rnrovantsyg-: 2ii:; ai- tch / yuda per opi: -: -; o; i: iipc Mi-iiiKa U (PM1Y n Mralts.I. Mns flow stream. a; -. ij; ia ci lajia.Mi.i M chamo-zoli gch-s-izu iio-; I i H I I I l not: 1C TIA liep.ji-; a: i -ii) n five ten 13934826 C1 Gal car:: Mia i iii: i; -; rocks, in-line conveyors, chutes, crusher and screen, characterized in that, in order to increase the efficiency of enrichment, the line is equipped with a throwing device, located by the crusher and an additional screen installed behind the main and connected to it with a tray, The rattles are made of strings and tilted in the direction of material movement, and a vibratory washer is mounted under the last rattling screen. 2. Line according to claim 1, differs from the fact that the working chambers, 1 4bi jLT4HOJi machines are cylindrical, in each of which a perforated plate is mounted with a gap relative to the bottom. 15 20 Suction py / 11 51 i J6 R  -J 1 1. W-nin / H.  - /  Al g /: A1LD 0 lllJM - l CZL. 1inl on p. 2, About tl and ch and y L, l with the fact that the plate is made of Hojia polyurethane. 4- / Download 1i, eBh (1 on about cysts to ij  reaped yozdu /  29