FI57485B - KONTINUERLIGT ARBETANDE SAW PLANT - Google Patents

Description

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C Patent granted 05 05 1931 (45) Patent meddelat

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Patent> och regitterttyreltan 'AnsBksn uttagd och utUkrifuo publiemd 30.0U. 80 (32) (33) (31) Requested «ttiolkvus — Bvgird prlorltvt (71) (72) Jaakko Ketola, 21800 Kyrö, Finland-Finland ^ FI) (7 * 0 Forssen & Salomaa Oy (5 * 0 (Continuous grain dryer - Container-free spark plug *

The invention relates to a continuous grain dryer with at least one grain tank and at least one sowing zone and a measuring compartment part.

It is well known that the moisture content of the grain must be in the range of $ 13-15 in order for the grain to be stored. To do this, the grain must be dried. Usually, the moisture content of the grain before drying varies between about $ 22-40 !.

Most often, grain is dried on farms in the so-called. erakuivureissa. In this type of dryer, drying takes place by filling the dryer with grain and circulating the grain batch through the drying zone so many times that it is dry, after which the dryer is emptied. This method achieves a moderately uniform result despite the large moisture fluctuations of the grain to be dried.

Another type of dryer already known and in use is the continuous dryer. Here, the grain passes only once through the drying zone. The dryer is used and emptied during drying.

2 57485

There are several drawbacks to known dryer types. In the batch dryer, the filling and emptying times are wasted time, when drying does not take place. At its maximum, this inefficient time can be up to 30% of the total time. It is also not possible to add grain to the batch dryer during drying, so grain from the field must be temporarily stored elsewhere.

In a continuous dryer, gravity is usually used to move the grain through the drying zone. In other words, the grain is allowed to drain through its own weight into the grain tanks through the dryer. This generally works satisfactorily when the grain is relatively dry, i.e. at less than 25% moisture. If the humidity is higher, very uneven grain is obtained. Humidity fluctuations are greater the wetter the grain before drying. The uneven moisture of the dried grain is mainly due to the fact that the wet grain does not pass evenly through the drying zone of the dryer. Some of the grain focuses and dries too much, while some passes through the dryer too quickly, leaving it wet. When the grain is wet, the drying time must otherwise be extended, ie the transport speed must be slowed down, which increases the accumulation of grain.

The object of the invention is to eliminate the above-mentioned drawback and to achieve this object the continuous grain dryer according to the invention is characterized in that the drying zone has a plurality of vertical separate grain columns a measuring tray of a height and width chosen so that the volume of the measuring tray is either equal to or less than that of the cereal column dried in the drying zone, each part of the ratio of the cereal column to the measuring tray volumes is is adapted to open simultaneously, in the longitudinal direction of the grain columns at any point at the same time, whereby the dried grain columns fall, viewed from the side of the grain columns, only in a vertical s in the oven, and thus when the grain is dropped, the interface between wet and dry grain remains unchanged throughout the drop, as a result of which only the dried grain statue passes into each measuring tray with the wet grain above it subjected to and thus more moist grain remained above the shut-off device.

When the grain column in the drying zone is suitably dry, the closing device below it is opened, which is constructed in such a way that it opens at the same time along the entire length of the grain column. Each particle of the cereal column, i.e. the grain, falls in the vertical direction when viewed from the side and since the grain falls at the same or almost the same at every point along the length of the column, the boundary line of the dried grain column and the the volume is the same as that of the grain statue, is the boundary line shifted when the measuring tray is full, ie at the end of the drop, at the closing device, ie when the dried rectangular parallelepiped is dropped above it, the next wet grain cannot enter the dried grain below the closing device and the dried grain cannot remain above the closing device.

If there are several cereal columns, they must be similar in shape and volume and the measuring boxes below them, except for the length of the cereal column, must also be of the same volume, so that in the event of a drop, each column of grain is equally dry and moves above. as described completely into the measuring tray.

The operation of the grain dryer according to the invention has been described above in the event that the grain column (or grains) in the drying zone is completely dropped out of the drying zone in one drop, i.e. the ratio of the measuring tray volume to the grain column in the drying zone is 1/1. The volume of the measuring tray can, without changing the operating principle described above, also be a fraction of the volume of the grain column, in which case the grain in the drying zone periodically dries V1 »V2, l / 3, etc. the part would have dried at each point in the height direction for the same number of cycles.

In the following, the invention will be explained in more detail with reference to a preferred embodiment of the invention shown in the figures of the accompanying drawings, to which, however, the invention is not intended to be exclusively limited.

Figure 1 shows an embodiment of a dryer according to the invention in cross section.

Fig. 2 shows the dryer according to Fig. 1 in a side view.

The grain enters the top of the dryer, for example, from the elevator through pipe 1. The upper part of the dryer forms a grain tank 16, from which the grain flows into the drying zone 17 by gravity.

Claims (4)

1. Jatkuvatoiminen viljankuivuri, jossa on ainakin yksi viljasäiliö (16) ja ainakin yksi kuivausvyöhyke (17) sekä mittalokero-osa, tunnettu siitä, one kuivausvyöhykkeessä (17) joiden jokaisen alla on sulku-laitteen (8), joka on järjestetty avautumaan viljapatsaan (4) koko pituudelta samanaikaisesti, erottamana viljapatsaan (4) pituinen mittalokero (10), young corkeus and leveys on valid site, one on mittalokeron (10) samansuuruinen kuin kuivausvyöhykkeessä (17) kuivatun viljapatsaan (4) tai sitä pienempi site, one viljapatsaan (4) yes mittalokeron (10) tilavuksien suhdeluvun kumpikin osa on kokonaisluku (1/1, 1/2, 1/3 jne.) kuivatut viljapatsaat (4) tai mainitun suhdeluvun mukaiset osat niistä pudotetaan sulkulaitteilla (8), jotka on sovitettu avautumaan samanaikaisesti, viljapatsaiden (4) pituussuunnassa joka kohdasta yht'aikaa, jolloat kuat (4) putoavat viljapatsaiden (4) sivulta katsottuna vain pystysuorassa suunnassa, yes the site willa pudotettaessa men ja kuivan the will rajapinta séilyy muuttumattomana koko pudotuksen ajan, minkä johdosta jokaiseen mittalokeroon (10) but the will jäädessä sulkulaitteen (8) yläpuolelle tai vastaavasti kuivatun viljapatsaan (4) mainitun suhdeluvun mukainen osa siitä sen yläpuolella kuivausvyöhykkeessä (17) lyhyemmän ajan kuivatuksen alaisena olleen ja siten 2. Patenttivaatimuksen 1 mukainen viljankuivuri, tunnettu siitä, että kuivatusvyöhykkeessä (17) olevat viljapatsaat (4) ovat muodoltaan samanlaiset ja tilavuudeltaan yhtä suuret ja niiden alle olevat mittalokerot (10) tilavuudetet 3. Patenttivaatimuksen 1 tai 2 mukainen viljankuivuri, tunnettu siitä, että mittalokerot (10) ovat alapäästään yhdistetyt siten, etä ne voidaan tyhjentää samalla bullet timella (13). 4. Patent Tivatimuksen 1,2 tai 3 mukainen viljankuivuri, tunnettu siitä, one center allokoid (10) later on the site, one seuraavan kui-vatuserän kuivumisen aikana mittalokerossa (10) sesovan kuivatun viljan lävitse voidaan johtaa ♦ 1 Continuously operating grain dryer with at least one grain container (16) and at least one drying zone (17) and a measuring compartment, characterized in that the drying zone (17) has several vertical, separate grain players (4) of the same height as the entire drying zone (17), below each of which is arranged one of a closing device (8) arranged to open simultaneously over the entire length of the seat column (4), separated measuring compartment (10) of the same length as the seat column (4), the height of which width is so selected that the volume of the measuring compartment (10) is either the same size as the volume of the grain player (4) dried in the drying zone (17) or less than this p! in such a way that each part in the ratio between the volumes of the seed player (4) and the volumes of the measuring compartment (10) is a whole tai (1/1, 1/2, 1/3, etc.), and that the dried grain players (4) or parts according to said relative numbers of these are lowered by the closing devices (8) arranged to open simultaneously, at the same moment at each point in the longitudinal direction of the seed players (4), the dried grain players (4) falling from the side of the seed players (4) only in the vertical direction, and during the deposition of the grain, the interface between water and dry grain is thus maintained unchanged throughout the deposition, so that only