FRIABLE MIXTURES SEPARATING DEVICE
The present invention relates to the field of separating the friable mixtures after a form and properties of the component particles' surfaces and can be utilized in agriculture at cleaning of grain and products of its processing, and also in food, chemical, mining, metallurgical and build industries for separation of friable mixtures depending on mass, size and form, on the base of the process of initial material blowing out in free falling state.
The separator for the division of friable materials after the surface form and properties is known (Journal "Tpaκτopbi H cejibxo3MaujHHbi" JY»2, 1964 p., p.27), which comprises a body, loading device, working element in cylindrical rotor form with an internal dividing surface revolving in relation to an axis which is installed under a corner to horizon, device for collection and output the overhead faction, components of which have a higher coefficient of friction, from the separator.
The lack of this known separator is that the device for collection and output of a faction with the higher coefficient of friction uses a ditch with internal auger, in which the particles of overhead faction can get only after tearing away from the dividing surface of rotor in a point, near the overhead point of cylinder. At the same time for the real friable mixtures a difference in the coefficients of friction of overhead and lower faction (that is the faction the components of which have a lower coefficient of friction) is small. Hereupon producing the cylinder from traditional machine-building materials, for example steel, the particles of overhead faction can not rise at a height large enough for allowing collecting them in the ditch and output by the auger from a separator. Therefore in the known separator the working element is a cylinder, which has an internal dividing surface, covered by a smooth woolen
cloth (fleecy fabric "beta").
The most closely related to the invention of technical nature, purpose, results achieved, and chosen to be a prototype is the separator for the dividing friable mixtures by a form and properties of surface (Patent of Russian Federation N° 2287380, published 20.1 1.06), which comprises a body, loading device, working element, executed in the form of cylinder rotor with an internal dividing surface, device for the output of overhead faction and drive unit. In this known device a device for the output of overhead faction is executed as a slot cap, united by airway with the suction air system with the adjustable pressure.
This device however has some drawbacks. At first, a decline of air flow power takes place at the expense of total lack resistance of airway.
In addition, to the lacks of the above mentioned device low reliability and complicated design take place through the presence of plenty of structural elements and their connecting elements, and also through probability of getting into separator air inlet of shallow admixtures that are on the floor around a machine. DISCLOSURE OF INVENTION
The aim put into the basis of the invention is to increase the air flow power, and also to simplify the separator construction.
For the accomplishment of the above mentioned objects the concerning friable mixtures separating device comprises a body, loading device, working element, separation chamber and drive unit. In accordance with an invention, working element is executed as high-circulating impeller, which is actuated by an electric motor, combined with a rectifier, static pressure chamber, set of deturbulization nets and air flow shaper, incorporated in one block. Meanwhile the loading device is executed as a bunker which contains mobile choke fastened on him.
In one preferred embodiment of the present invention the drive unit
contains an electric motor, movable jointed through a transmission belt with an airscrew with capability of its rotation, and also frequency transformer jointed with an electric motor with capability of turn frequency regulating.
According to another preferred embodiment of the present invention, the separator additionally comprises an electro-cabinet and reflector, movable jointed in a body, and the separation chamber contains trays and window shades connected with them with capability of turning.
The present invention provides increasing air flow power. Using the impeller in the machines of such type allows to minimize air flow power reducing due to the total absence of air inlets resistance, which are not used, to eliminate getting into separator air inlet of shallow admixtures that are on the floor around a machine as an elements of the invention clamed are located in a high distance relative to the floor, and also to get grain warm flow necessary for the effective drying without using additional devices which improves machine operating features. The impeller electric motor speed can be changed in wide range of rotation frequencies due to frequency transformer using.
The aim of increasing reliability and design simplification is achieved at a present separator due to that the separator is based on using of high-speed impeller activated by the electric motor, which is combined with a rectifier, static pressure chamber, set of deturbulization nets and air flow generator, incorporated in one block. Meanwhile the impeller design allows air warming by the aerodynamic method for the further drying of material separated.
In addition, a device is provided by the supplying bunker, which does not need using of vibrating tray, which improves the separated grain supplying comparing to analogues equipped by vibrotray.
BRIEF DESCRIPTION OF DRAWINGS
Figure shows the general view of the separator.
BEST MODE FOR CARRYING OUT THE INVENTION
A separator comprises a body 17, loading device 3, separation chamber 14, working element in the form of high-speed impeller 4 operated by the electric motor 1 1 , which is combined with a rectifier 5, static pressure chamber 6, set of deturbulization nets 7 and air flow shaper 8 incorporated in one block (see Figure). The loading device 3 is executed as a bunker 1 , which contains mobile choke 2 fastened on him. Drive unit is executed as an electric motor 1 1 movable jointed through a transmission belt 10 with an airscrew 9 with capability of its rotation. An electro-cabinet 12 and reflector 13 are movable fastened in a body 17. Separation chamber 14 contains trays 16 and window shades 15 connected with said trays with capability of turning.
The invention operates as follows. Operation of the machine is based on the changing of free falling grain trajectory by the air flow from the impeller 4 and on the further distribution and division of initial material on faction depending on mass, size and form (see Figure).
The initial material, further "grain", is given in a bunker 1 , is distributed on the width of tray 16 under its own weight and in such state is coming in the form of uniform stream into the separation chamber 14, where said grain is being stratificated and divided by mass, size and form due to impeller 4 air flow effecting grain (see Figure).
After separation from the receiving bunkers the grain is divided and packaged into bags. If necessary, part of grain can be sent through collections of reverse factions into the bunker 1 for reseparation.
Operation of the device is possible in five modes:
1- previous cleaning mode;
2- primary cleaning mode;
3- calibration mode;
4- warm air dry mode;
5- mixed mode (calibration, cleaning, drying simultaneously).
A separator is able to:
1 - separate grains of 3rd and 4th class from the six class grains (if they
2- separate grains, affected by dorn-bug and weevil;
3-refine wheat grains from wild oat and oat;
4-divide mixture of wheat and barley, up to 60% for one passage-way;
5-separate pea, affected by bruhus beetle;
6-separate rotten corn from healthy one;
7-dry 3%of grain simultaneously for one passage-way at his cleaning and calibration by the air flow;
8-separate from a general bulk the most viable, productive grains;
9-separate wheat grains which have enhanceable maintenance of gluten due to:
- ability of machine to select the grains with the biggest mass of 2 and 3 factions;
- selection of the most dense, executed and full weight grains with enhanceable maintenance of albumen and gluten.
10- dispersion on groats mill, dividing groats by sizes on seven factions. Meanwhile:
- to remove meal giving groats the high ready sale;
- to handle practically all of types of agricultural production— from small-seeded (alfalfa, poppy, colza) to the corn, bobs and seed of sugar beet;
- to separate industrial friable materials (a shallow stone crumb for mineral plaster).
Thus, the invention clamed allows increasing of air flow power, and also increasing of reliability and simplification of separator design.