SU128686A1 - Vibration Dryer for Grain and Other Materials - Google Patents

Description

A disadvantage of the known grain dryers - mine, drum, cyclone, vortex and others - is that they have low productivity and increased consumption of heat-transfer agent. CyniKa grain in them leads at high temperatures, and the designs do not provide uniform heating and suction, which leads to a decrease in the baking and sowing qualities of grain.

In the proposed dryer, due to the use of dehydrated zozdu as a drying agent and at low temperatures, it does not exceed technologically acceptable for this material, in combination with high frequency vibration of ocyniacMoro L1ternal, and the use of all exhaust air as a heat carrier for regeneration of moisture and moisture. By preheating the power supply, the agent agent is largely eliminated.

The proposed dryer is made in the form of batteries of inclined conveyor-heaters, which receive their vibrations from electro-magnetic drives. To lengthen the path traveled by the material to be dried, the vibrating conveyor has the shape of a gutter with a jacket and a perforated or non-guided cascade bottom. Spring-loaded pitched trays are installed on the bottom of the bottom, located under the end of the previous and the beginning of the next stage of the cascade. Pitched trays convey drained material from stage to stun.

The use of vibrating conveyors provides a time-consuming shrinkage, increasing productivity.

FIG. 1 shows a dryer for drying with dehydrated air, side view; in fig. 2 is a section along AA in FIG. one; in fig. 3 is a diagram of a simplified version of the dryer, using an application for drying a mixture of flue gas with air, side view; in fig. 4 - a section on BB on fng. 3

No. 128686

“,, .- .. - - Arrangements | $ vsto. batteries (three and more) of the inclined vibrating conveyor-heaters 1. Each conveyor-heater of the finished vy | 1е11ке 0а; 5 with a jacket 3, an unshielded or perforated cassette-diam 4, installed on the steps of the cascade on the chambers of the bypass trays 6, setting under the top of the previous section of the cascade and at the beginning of the next. The trays are set at an angle that is sufficient for the material to move downward, setting them to extend the length of the material being dried. Diaphragm perforation depends on the size of the material to be dried. In the jacket of each conveyor-heater, a heating surface (pipe) 7 is mounted, through which the coolant flows, heating the substantive agent, washing it on the way to the dried material. The conveyors are driven (vibrated) by means of electromagnetic drives and, moreover, the productivity of the conveyor is controlled by the angle of inclination, the amplitude of oscillation and the height of the layer of material to be dried.

The material moved by vibration up the conveyor at the end of the cascade of the installed pitched board 9 drops a vertical shaft 10, hits the impeller system //, with lattice buckets 12 of parabolic shape rotating by the weight of the falling material. The arrangement of the impeller buckets ensures their counter-rotation when transferring material from the bucket to KOBHJ. With the shaft 13 of the lower impeller is connected to the drive 14 (chain transmission) unloading conveyor / 5, driven without a special engine. Backfilling of the material to be dried is made through the receiving bin / 6, equipped with a spreading screw / 7, from where it goes through the cascade and the bypass trays to the shaft through the holes with adjustable dampers / and post-falls onto the drying conveyor and iodine.

Cold outside air is sucked through the fan pipe 19. 20, along the way, passes through one of the two moisture absorbers 21, where it is dewatered by silica gel or aluminum gel, and through the air duct 2.2 it supplies .. s to the vertical shaft of the dry device. The stream of dehydrated outside air blows the material when it is poured over the impeller buckets, cools and finally dries it in a semi-weighted state. Dehumidifiers are interlocked with shutters 23 and can be activated alternately with the help of an automatic program controller or by manually closing the shutters. At the top of the shaft, slightly humidified air enters the collector 24 and the fan 25 is injected through distribution manifold 26 with adjustable dampers 27 into the jacket of heating conveyors, where, washing the heating surface with heat carrier, heats up to the technologically required temperature, increases its drying activity, and , the passage through the holes and slots of the cascade bottom of the gutter, blows the material vibrating on it and dries it. The spent cygillic agent (air) is collected in the collector 28 and transferred from there to the preheater 29 or replaced with flue gases, heated to 200-300 °, then enters the second moisture absorber, regenerates the silica gel in it and ventilator 30 is pumped through the collector 31 with adjustable dampers 32 to the heating surface of the conveyors, where it gives off its heat to the flow of drying air and through the discharge pipes 33 extends beyond the limits of the dryer. To increase the rate of heating of the material, during its passage through the conveyor, a thermal radiator 34 with a light filter can be used.

In a simplified question; drying-str {g: tv; iipo.i.ia, the Bii6paunoiiHoft dryer circuit, in which the drying is carried out / 1b; I am agopshm, sly and :; mixtures t ;; waste gases from 11 (. iciological loyustmmon for dai1I) material temperature and (15 - 60 °). The simplified VA) dryer consists of three or more iklono

iim OR ieprova.lmym diom 36, from the mouth; iovenleni: m izhiigu stu.: If you cascade on irzgiah 37 nepenycKHijiMii. ink.; 1 38. Use the lot, 11 are gutter-shaped with a this surface. Each stage of the cascade bottom has, at the lower end, a rounding-off bar that receives material received from the bypass tray. All the troughs are closed from above by one common duct 39 with a tap of 40 spent sushi dry agent. At the end of the cascade, material is cKainoii blackboard 4 nocTyiiacT into a vertical shaft 42, where, overflowing through the system of drainage pins 43, cool down with air and dried by a fan 44. The air coming out of the shaft can be partially a.ti fully used, || bzov1- to form a supra-11.1% somsey. A mixture of and; OUR gases with external air ji3 mixer 45 is supplied by a 46 cher / hz fan and a collector 47 from the chute of the vibrating troughs and blown through the c.ioii of the drained and vibrating material. Each vibrating chute is driven by electromagnetically driven drives 48.

Subject invention

Claims (4)

1.Vib |) cation; 1a dryer d; 1 grain and other materials) and.1.1, including heaters, vertical shaft, heating, conveyors, fans and air ducts, in order to reduce the time drying, increasing productivity and improving the quality of the material to be dried, it is made in the form of inclined K01 fan batteries, torifers that receive movement from electromagnetic drives, and the path passed by the material to be dried, the vibrating conveyor has the shape of a groove: p / knob, with perforar ovated or mineralized cascade bottoms with sloped M pitched trays on the bottom steps of the spring loaded M pitched trays located at the end of the previous stage of the cascade and in the beginning of the next stage transferring the dried material from stage to stage. 2. Dryer according to claim 1, characterized in that for dehydration of air (drying agent) it uses a silica gel unit, regenerated by the spent suiyl agent at H: so high temperatures of the latter. 3. With} pii.tk on and. 1, with T / I and the fact that, sieu, it is u.t.touch; without restraining and cooling the material in the mine in the twosteam state, the self-penetrating roof was used to move the material. k.chatki with perforated kov1iami parabolicG shape. 4. The dryer option according to claim 1, which is based on the fact that, from the cs, tn simplify the overall design of the dryer, it has an artificial silicon gel installation, impellers with ladles and air heaters, and as a hip1. About the agent, a mixture of flue gases with air is applied, the temperature is not higher than the permissible for this material. ..- tJ -; - j D G, ... g „., Ml ("ry for Shp - f: J, 2S