RU2042440C1 - Aerodynamic complex for enriching loose materials - Google Patents

Abstract

FIELD: mining, chemical and other industries. SUBSTANCE: aerodynamic complex for enriching loose materials consists of blocks. Vibration chute 1 connected with charging bunkers 2 and crusher 3, overloading branch pipe 4 and elevator 5 which is connected with the vibrating dryer containing overloading bunker 6, is mounted in the blocks. Sieves 7 of classification, heaters with reflectors 8, inclined shelves 9 on vibrating housing 10, dust exhaust fan 11 with air duct 12 are also set up in the blocks. The vibrating dryer is mounted over vibrochamber 13 of roasting and vibrochamber 14 of electropulse processing which are connected with zigzag aerodynamic tunnel 17 by vibration chute 15 through iron separator 16. On one side tunnel 17 has pneumatic blower 18, on the other side it is equipped with inclined deflecting movable shields 19, power cylinders 20, constant magnets 21, vibrators 22 and vertical chambers 23 of rarefaction. Dynamic chamber 24 of separation is equipped with air-tight chamber 25 for separating the small fraction and with T-joint having throttle valve 26 in the center. Air duct 27 from it is introduced into chambers 28 for separating dust particles with movable deflecting shield 29 which are connected with an aspiration system. The complex is equipped with a plant for the gravitational separation of particles with swinging partitions and stock-rooms which are connected between themselves by transporters 34. The regulation of the complex is exercised from control desk 35. EFFECT: facilitated manufacture. 4 dwg

Description

 The invention relates to a device for the enrichment of bulk materials and can be widely used in mining, coal, chemical, metallurgical, cement, glass, woodworking, construction, energy and other industries.

Known installations for the enrichment of bulk materials, containing the frame, loading and unloading pipes, conveyors, booster pipe with heaters, air blower, dust fan and aspiration system [1]
The disadvantages of the known installations are high material consumption, low productivity, insufficient quality of cleaning and limited application.

Closest to the proposed one is a plant for the enrichment of bulk materials, including a loading hopper and a dynamic separation chamber with a breaker vibrating board, vibration heater, air blower and booster pipe, aspiration system [2]
The disadvantages of this installation are the low quality of cleaning due to the short duration of the process and the inadmissibility of a number of harmful impurities, limited application.

 The purpose of the invention is to increase efficiency and quality, expanding technological capabilities.

 The goal is achieved by the fact that it is equipped with a firing chamber in series in front of the wind tunnel, an electric pulse treatment chamber, iron separators, and a separation chamber is installed in front of the dynamic separation chamber, intersecting the wind tunnel, which is made at the intersection with holes for outputting small particles, while the dynamic chamber separation is made with a discharge valve installed in the discharge pipe, and the wind tunnel is made zigzag minutes with actuators, vibrators, baffle shields and permanent magnets of an alloy containing niobium, iron and boron, mounted on the baffle boards.

 Figure 1 shows a diagram of the proposed complex; figure 2 section aa in figure 1; figure 3 section BB in figure 2; figure 4 section BB in figure 2.

 The aerodynamic complex for the enrichment of bulk materials consists of blocks in which a vibratory tray 1 is connected, connected to loading hoppers 2 and a crusher 3, a transfer nozzle 4 and an elevator 5, which is connected to a vibration dryer containing a transfer hopper 6, sieve 7 classification, heaters with reflectors 8 , contains inclined shelves 9 on the vibrating box 10, a dust fan 11 with an air duct 12, and the vibrating dryer is installed above the vibrating chamber 13 of firing and the vibrating chamber 14 of electric pulse processing, which are 3 iron separator 16 is connected to a zigzag wind tunnel 17 containing on one side a pneumatic blower 18, and on the other equipped with inclined breaker shields 19, power cylinders 20, permanent magnets 21, vibrators 22 and vertical separation chambers 23, and the dynamic separation chamber 24 is provided with a camera 25 separation of the fine fraction and a tee with an unloading valve 26 in the center, while the duct 27 from it is introduced into the chamber 28 separation of dusty particles with a movable breaker shield 29, which are connected to the aspiration constant system 30, the installation 31 is provided with a set of gravitational separation of particles from the rotating partition walls 32 and 33 warehouse of finished goods, which is connected between the conveyors 34 and the complex is controlled from the remote control 35.

 Aerodynamic complex for the enrichment of bulk materials works as follows.

Bulk material (sand, slag, granules, etc.) is fed into the loading hopper 2, from where through the crusher 3 or directly through the vibratory tray 1 through the elevator 5 and the loading hopper 6 enters the vibratory dryer, in which waste and large waste are removed using sieves 7 fractions that are returned through the transfer pipe 4 to the crusher, and the grains of material are moved along the inclined shelves 9 in the vibro-boiling layer from the action of the vibrocasing 10 and in the field of radiant energy from heaters with reflectors 8, while dust removal occurs, after which the grains arrive into vibrokameru 13 firing, where they are temperature influences, such as temperature 300 400 ^{° C,} and then moved into the chamber 14 electric pulse treatment, where grains are exposed to electric discharges, which was purified by their surface, such as iron and aluminum oxides, whereupon through a vibratory tray 15, grains of material through an iron separator 16 enter a zigzag wind tunnel 17, in which, in turbulent motion, collapses against baffles 19, baffles with magnets 21 and vibrators 22 occur cleaning and grinding of bulk material with the simultaneous removal of, for example, 0.1-0.15 mm fractions in the separation chambers 23 according to the Eiffel principle, the gap being regulated by power cylinders 20, after which the grains of material fly into the separation chamber 25, where small particles are removed and then into the dynamic chamber 24, where the grains collide, again dedust and feed down to the tee with an unloading valve 26, with the help of which the grains of the material are again sent through the second iron separator to the next enrichment cycle, or directly to the finished product warehouse 33, and from the vibratory dryer, the dynamic chamber, and the separation chambers through the air ducts 12, the dust particles are removed to the suction system, and through the conveyors 34 heavy particles of bulk material are transferred to the gravity separation unit 31, where the particles are classified by mass, while the process control the process is automated and performed from the remote control 35.

 Known serial and domestic and foreign plants for the enrichment of bulk materials, for example, the domestic drying unit D-588 and a two-tier screen SMD-121 (GIS-52), installations of firms "Werner", "DORR OLIVER" (Germany) and others that provide only partial enrichment.

 The technical and economic efficiency of the proposed complex for the enrichment of bulk materials in comparison with the prototype (base object) is similar and serial installations provide the following: energy savings are achieved by efficient heat transfer from heaters with reflectors; Improving the quality of enrichment is achieved through intensive scrubbing and scrubbing, variable exposure to thermal and magnetic fields, dynamic, vortex and vibration effects, creation of rarefaction zones, sequential cleaning of harmful impurities and material separation; the expansion of the boundaries of application is achieved due to the intersectoral use of the complex.

Claims (1)

 AERODYNAMIC COMPLEX FOR ENRICHMENT OF BULK MATERIALS, including a loading hopper, conveyors, an aerodynamic tube, introduced into a dynamic separation chamber made with a breaker vibratory shield and an unloading nozzle, and an aspiration system, characterized in that it is equipped with a vibro-animer tube that is installed in series in front of the aerodynamic tube processing, with iron separators, and in front of the dynamic separation chamber, a separation chamber is installed crossing the aerodynam a tube, which at the intersection is made with holes for outputting small particles, while the dynamic separation chamber is made with a discharge valve installed in the discharge pipe, and the wind tunnel is made in a zigzag shape with power cylinders, vibrators, breaker shields and permanent magnets from an alloy containing niobium, iron and boron mounted on breaker shields.

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