DE1977386U - CHAMBER DRYER FOR GRUENFODTER. - Google Patents

Description

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Engelbert Maureder in Waxenberg, Upper Austria

T ⁵ ^ TTTTTTt I ¹ II Schönenden 'l' drying of G-runlUÜLer, —ee = mJM ^ u —— faaerigcii Gut.

"Chamber dryer for green fodder"

The invention relates to a system for drying green fodder, grain and other stalky, granular and fibrous material in an airtight and pressure-proof chamber with the creation of a vacuum, whereby it is essential that even drying is achieved despite the storage of the goods in a compact heap.

In the already existing drying systems for green fodder and other material already mentioned, the Aus = enter the water, which is stored in the vessels or vessel bundles of these goods, through enormous heat supply, which often has a detrimental effect on the quality of the goods to be dried = mostly under normal pressure as with natural Drying accomplished. This leakage of water takes place only slowly under normal pressure, even with a large supply of heat.

It is therefore advisable to carry out the drying of the goods under low pressure, this is, as already known, achieved in that by continuous suction of moist air from an airtight chamber, in which is the material to be dried, the pressure in the chamber is made lower than the pressure in the vessels of the is the goods to be dried and therefore a pressure equalization is inevitably established and this leads to an accelerated discharge

(Evaporation) of the water from the vessels of the grass and plant = zen etc. is coming.

The material to be dried should be different during the drying process can be in a compact heap (body), since the preparation of the goods to be dried on grids, etc. is a be = requires considerable time and so drying becomes uneconomical. However, if the good is now conveniently in one compact body, an even drying of the goods is not possible, because the drying of the goods is on the surface and is reached quickly at the adjacent layers, but the drying of the core takes place only very slowly, so that, during the upper layers of the property are parched to an enormous decrease in quality, the core of the property is still damp is. As has already been suggested, this regrettable fact cannot be remedied by on the one hand attaches heating elements to the chamber walls or, on the other hand, supplies heat from the outside, since by this measure the surface and the adjacent layers of the material to be dried are dried out even faster, while the core of the material again = to be slow drying.

According to the invention, this disadvantage of the uneven drying of a compact body is now eliminated in that Either a heating element, but expediently several heating elements, can be brought directly into the material body, so that despite the cooling associated with the "vacuum" sets the temperature in the property at the level required for rapid evaporation of the water borrowed height can be maintained or that a heated or heated gaseous medium by means of nozzles or the like. That just =

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if heating elements can represent, directly into the good body pressed in "or injected, this injected medium on the one hand centrifugally at the same time from the entire surface the Gutskörpers can be sucked, on the other hand, it is more advantageous by a suitable construction of the chamber and by means of a corresponding device, this injected medium successively only from a part of the entire surface suction of the good body so that the injected medium is passed through the good body in different directions of flow and since only one part of the surface is vacuumed in succession, there is no quality-reducing off = drying of the surface layers of the material to be dried ..

Pig »1 shows a vertical center section through a Cube-shaped or cuboid-shaped chamber in which the goods are fed to the drying process. While Fig.2 shows a detail on a larger scale to Fig. 1 shows.

In the embodiment according to Figure 1, which has a vertical Center section through a chamber 1 shows which is to be closed airtight and whose walls are pressure-proof, for example conical heating or injection> elements 2 on a Slide rails or the like. 3 movable scaffolding or the like T. The framework is inside (e.g. between the chamber walls 1 and the lattice walls 13) or outside of chamber 1 can be located (the drawing shows it outside the chamber) through eyelets 5, which are located in the chamber walls 1, directly driven or pushed into the goods stored in the drying chamber. Introducing the heating or injection elements from the outside brings significant advantages, since on the one hand the heating and injection elements very deep into the body =

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can be pushed (see number 2 in Fig.i), which has a very positive effect on uniform and rapid drying of the goods and, on the other hand, the distance between the chamber walls 1 and the lattice walls 13 are kept relatively small and thus the chamber is essential can be built smaller. Sealing hoods 6 or the like provided at the Hei ^-. Z-bzw.Injizierelementen2 mounted so as to be pressed when retracting the Elemente2 · in the chamber 1 to the chamber walls, keeping the chamber air-tight. It can range from several sides of the chamber heating or "Injizierelemente in the chamber or in the Gutskörper turned = to lead. Pig. 1 shows, for example, that the heating or injection elements from two mutually perpendicular sides

were introduced to the Chamber. Namely, while the digits 2 in Fig.1 show longitudinal sections of conical heating or injection elements, the numbers 7 in Fig.1 represent radial sections of Heizbzw. Injecting elements, since the elements 2 and 7 are perpendicular to each other. These heating or injection elements can assigned a single or double task. For example, numeral 2 in FIG. 2 shows a heating and injection element with the spirals 8, which are used for heating and the flow channel or with the flow channels 9 for the gaseous medium, the or which is or are connected to the outlet openings or nozzles 1 o. Numeral 11 shows a pronounced heating element, while numeral 12 represents a distinct injector. These combined and simple elements can meet your needs can be arranged as desired. The introduction of the heating or injection elements into the chamber or into the good body can be done mechanically, for example pneumatically, but also manually. The goods to be dried can for example be in a basket 13 »of

from mesh walls or the like. is formed, which is with the chamber 1 can be firmly connected or is housed in the chamber so that it can be removed. Connections 14 and 15, respectively, between the lattice walls of the basket and the chamber walls exist, snr = gen to ensure that air currents that occur are not the slight = can take the other way around the basket, but be forced to push through the goods to be dried. Between the mesh walls the basket and the chamber walls can wire mesh sets or the like. 16 are attached, the suction of particles of the manure have to prevent. On one chamber wall, expediently, however, there are suction openings or devices on several chamber walls 17 serving the same purpose.

The heating and injection elements are first pushed into the material, which is brought to dry in the dip chamber a kind of heatable and gas-emitting grille in the Gutskör = per represent and so a uniform warming and a Make possible a uniform flushing of the good body with a gaseous medium.

The drying process now proceeds in such a way that, while through the suction or the like. 1? in the chamber walls moist air or water vapor is sucked off, through the outlet openings or nozzles 1o of the injection elements 2 and 12, a gaseous one Medium is injected into the good body, which is centrifugally sucked off and on its path haze and water vapor transported out of the material to be dried, which is located in a compact heap.

But it is now until the manure body is completely dry, i.e. until the core of the manure body is also completely dry is, sucked on the entire surface of the manure, so can

it leads to a strongly quality-reducing desiccation of the upper = surface layers of the manure body come. According to the invention, this deficiency is remedied in that, one after the other, over the same Time or gas quantum intervals are only sucked on a fraction of the entire surface of the good body. For example can only be sucked on one sixth of the entire surface of the good body in a cube-shaped chamber you only suck through the suction openings of a chamber wall, so that gas flows in six different directions can be passed through the good body. For example, if the drying time of the goods is χ minutes in total, then only x / 6 sucked on each part of the surface. Because with the contrary drying process Hur accelerated drying If a vacuum is created, it is always necessary to suck in more gas than through the injection elements into the good body is pressed in. The creation of a successive vacuum can also take place in stages, if a continuous creation of a vacuum with simultaneous injection of a gaseous one takes place The medium proves difficult by injecting a predetermined amount of gas (e.g. 2o m3) into the good body is, while at the same time humid gas or water vapor is sucked off through the suction openings of a chamber wall. That Injection of the warm or heated gaseous medium has the purpose of removing the water vapor from the interior of the Manor, which is a compact heap, to be decreed nigen so that the core of the good body is dried at the same time as the surface layers, is the pressing the predetermined amount of gas is carried out, then no more gas is injected in this flow direction, but it is

further humid gas or water vapor sucked up until that der'Druck in the chamber, for example, from normal pressure to 8 / io atü has humiliated. This process is used in the following flow directions repeated, the pressure in the chamber being further reduced in each direction of flow until the Drying of the goods etc. is achieved. Through the .directly Heating elements 2 or 11 located in the good body will be used despite " successive lowering of the pressure in the chamber a temperature in the good body required for rapid evaporation maintain-

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Claims (1)

P.A.576 943 * -9.10.67 -Bm Anapriissh " 1.) Chamber dryer for green forage, grain and other stalky, granular and fibrous goods, with airtight planks esabarer and drueksioherer (drying chambers, the walls of which are provided with suction openings, characterized by sra drying in a compact heap in the drying room (13) Easily insertable, needle-like heating and insertion elements (2, 11, 12). 2) Karamer dryer according to claim 1, characterized in that that the heating beaw. Indexing elements on an outside halfc the chamber movable frame (4) ©, like, are mounted and through openings (5) or the like. in the Kamia walls (1) in the dry goods contained in the chamber can be pushed in as far as you want are,, 3,) Chamber dryer according to claim 1 bessw, 2, characterized in that die hoods (6) or the like resting against the outside of the chamber walls are attached to the heating beew _{q injection elements.} are appropriate 4 ₅₎ Ksaamertrockner according to claim 1, characterized in that the heating or _a Inject! Emente on a displaceable within the chamber scaffolding or the like, are mounted "