| 1. | The invention of the continuous running high compression Complex Press is used for the seperation of solids liquids mixture. This is achieved with the co¬ operation of the dented mechanism (3) with the variable or fixed diameter worm wheel (1) (2) or even in the case of the conical screw, alone, without the movable in height teeth (6) of the mechanism (3) . Thus we achieve the essential tightness of the airgap between the wing pairs of the worm wheel (1) (2) during its function. It is also achieved the constantly increased predilected boost inside the shell (8) (consisted of two sections (9) (10) , that is also a filter, which with the help of springs (11) is elastically movable (12) parallel to the worm wheel (1) (2) . |
| 2. | The Complex Press, according to pretention 1, is characterized by the worm wheel (1) (2) of variable or fixed diameter, and parallelogram side elevation (profile) "wings. |
| 3. | The Complex Press, according to pretentions 1 and 2, is characterized by the chain indented mechanism (3) which is consisted of two different kinds of parallel teeth, the first of fixed (5) and the second of driven height (6) or even teeth fixed in height, which are supported on the worm wheel (1) (2) for the airgap tightness between its wings, without allowing the retrogression or the exit of the mixture from the upper part of the shell (9) (first section) . |
| 4. | The Complex Press, according to pretention 1, 2 and 3, is characterized by the worm wheel (1) (2) shell (8) which is consisted of two sections. The first section (9) is open from above so as the chain indented mechanism can be supported (3) , while in its second section (10) the mechanism passes through it. Additionally, the whole shell (8) since its construction comprises a filter, too. The shell (8) has the capability with the help of regulating springs (11) to realize during its running a controlled parallel to the worm wheel shaft displacement (on slippery belts) (12) , following the motion of its conicity, so that the compression stability can be regulated regardless of the mixture's quantity. |
The patent is referred to a new machine (technological innovation) and to a method of oil extraction fron vegetable-fruits, which contain oil (olives, maize, sun- seeds, e.t.c), without the admixture of other liquids (water) .
Therefore, it is ecological.
This machine is of low construction cost compared with the existing oil - extracting machines. The existing methods that are used for oil extraction are the pressing with press machines, the centrifugation and the extraction.
Using these methods we face the following defects: By the press method the oil quality is very good but there is a high production cost (labour costs) and a big time lag, because it is not of continuous production, and therefore all these features, compared with the today's data, render the method to be unprofitable.
By the method of centrifugation the oil quality is not so good, for the centrifugal forces that are being developed in order to take place the seperation of the oil-paste are too high because of the big turns' number that are developed by the centrifuger (3000-3500 RPM/MIN) .
In the end, the extraction method that is used for seed- oils, has high construction cost and the product needs additional finishing (refining) .
The invention we deal with is based upon the method of continuous and constantly altering compresion of the mixture that is about to be processed, till the final seperation between solid and liquid materials.
The high compression Complex Press is consisted of five basic functional parts:
The first part is the worm wheel (1) which is of constant screw, parallelogram side elevation (profile) wings and at its end part it has variable diameter, in other words a conical end (2) .
The second part is the co-operating (with the above mentioned wheel) chain indented mechanism (3) .
The mechanism (3) is consisted of two different kinds of parallel teeth: The first tooth which is of fixed height (5) in relation to the worm shaft and the second
which is of driven height (6) in relation to the worm shaft. By this way we succeed in having the tightness of the air-gap that exists between the pairs of wings of the moving worm wheel (1) (2) .
The third part is the shell (8) of the mentioned worm wheel, which is consisted of two seperate parts: the first part (9) , which since its construction it has a filter shape and it is open from above so as the mechanism (3) can pass through, encloses the part of the screw with the firm diameter (1) and the second part (10) , which is closed and the mechanism passes through it, encloses the part of screw with the variable diameter (conical part) (2) which is a filter, too. This filter (10) is a plates filter, that is, the plates leave between them a very small gap and through it flows the liquid.
Since its construction the shell (9) has the following advantages:
With the help of regulating springs (11) during its running it can achieve its controlled - parallel to the worm wheel shaft - displacement on slippery belts (12) , following the motion of the worm wheel conicity, so that the compression stability is able to be regulated regardless of the mixture's quantity; and that is because the air-gap that exists between the worm wheel wings (l) (2) and the shell is automatically regulated, according to the preselected compression, keeping a part of the conical tight so that leakages are avoided. At the same time it is achieved a friction limitation inside the sample being processed and not between the mixture and the shell walls (8), thus avoiding the high temperatures and the machine's wear, while at the same time it is achieved the formation of a natural filter (from the powder fouling of the elaborated mixture) .
The fourth part is the end part of the shell at -which there is a mechanism (13) regulated by springs which prearranges, in relation with the viscosity, the final compression of the mixture before its exit (4) (compression process maximum degree) .
Last, the fifth part is the container (liquid gathering) (30) in which takes place a natural seperation without centrifugation, which it is achieved because of the coherence forces that exist in liquids.
A method of the invention's application is described below with references in figures that explain its realization:
Figure no.l is a longitudinal section of the Complex Press
and the container according to the invention.
Figure no.2 is a sectional plan of the Complex Press without the co-operating chain indented mechanism (3) .
Figure no.3 is a sectional plan of the container (liquid gathering) .
The figures show the Complex Press in which the being processed mixture - in the certain application example the procession product are the olives - has been squeezed in the hammer mill and has been mixed. The product of pugging is the oil-paste which is going to be referred to as the mixture.
The mixture is thrown in the crucible (14) and it is directed towards the beginning of the worm wheel (1) . The screw is being rotated gaining motion through toothed wheel and chain from a reduction gear safety device of regulating turns (19) (reduction gear place) . He drives the mixture towards its conical part (2) , with the help of the chain indented mechanism (3) (which it also gains motion through toothed wheel (15) and chain from the same reduction gear) forcing the mixture to gradual compression without allowing its retrogression or its exit from the upper part of the shell .8) (in the first section (9) the shell at its upper part is open so as the mechanism (3) can pass through, while in the second section (10) is closed and the mechanism (3) passes from inside) ; thus we achieve the maximum boost (supercharging) in the final exit (4) where the solid residues, by then, of the mixture go away.
Thus, by this way the seperation of the liquids and solids is achieved in two stages: The first stage is that of the initial compression starting with the entrance of the material in the worm wheel (1) where the liquids outfall from the bottom of the shell - filter (9) . The second stage is the gradual compression in the conical section (2) of the worm wheel with the shell - filter (10)
The worm wheel is cocked on two thrust bearings (16) (17) . The whole above mentioned machine is placed on a metal base (18) .
Further to, the produced liquids are thrown in the container (liquid gathering) (30) which is found below the Complex Press, which container is seperated in three parts
In the first section (31) flow the seperated liquids from the mixture which is seperated in the press. For the fact
that the liquids have a different specific weight, we create an oil layer using level electrodes (32) . Because of the flowage that occurs by the continuous fall of the liquids from the press, the oil proceeds to the second section (33) of the container, where there is a revolving axis (34) which bears omocentric metal disks made of stainless steel (35) watered down in the container. Thus, the oil is adhered on the disks surfaces and it is carried away to the upper spots, where with the help of a specific (plastic) cooler it is removed away from them towards to the final grouping place, third section (36) , that is clean by then.
By this way it is achieved a natural seperation without a centrifugation.