Claims
- 1. A process for treating oil-containing vegetable seed particles to facilitate subsequent oil extraction from said particles, said process comprising the steps of:
- a. forming the seed particles in a thin layer in a receiver provided with a bottom having apertures;
- b. moving the particles close to one another regularly for a relatively short time and moving the particles away from one another for a relatively short time while advancing said particles through the receiver;
- c. the movement of said particles towards and away from one another being obtained by effecting vibration of the receiver with a vertical vibration component having a low frequency of most 1000 vibrations per minute and high amplitude of about 5 to about 50 mm.;
- d. supplying a heat and moisture-containing gaseous fluid through the apertures in the bottom of the receiver during periods in which the apertures are open;
- e. heating the particles to a temperature of at least 90.degree. C. to inactivate enzymes rapidly;
- f. thereafter decreasing the moisture content and temperature of the vegetable seed particles, by contacting the particles with each other regularly for a relatively short time and separating said particles from each other also for a relatively short time, said contact and said separation being obtained as in step (c), while a gaseous drying fluid supplied through openings in the bottom acts discontinuously on each individual particle when said openings are open due to the action of the vertical vibration component.
- 2. Process according to claim 1, wherein the oil-containing vegetable seed particles are heated and moistened in a first receiver, in a second receiver their temperature is maintained at a value ranging from 95.degree. to 115.degree. C. for 1 to 3 minutes and in a third receiver the raw materials are cooled and dried, the fluids for the heating, moistening and transfer being supplied in each stage.
- 3. Process according to claim 1, wherein the total amplitude of the vertical component of vibration is between 10 and 40 mm.
- 4. Process according to claim 1, wherein the frequency of the vibration is between 200 to 400 vibrations per minute.
- 5. Process according to claim 1, wherein the oil containing vegetable seed particles in the thin layer are heated to a temperature of at least 90.degree. C. by supplying moisture and heat.
- 6. Process according to claim 1, wherein the heat and moisture transfer is effected by means of steam.
- 7. Process according to claim 1, wherein the vegetable seed particles are heated to a temperature between 95.degree. and 115.degree. C .
Priority Claims (1)
Number |
Date |
Country |
Kind |
7302358 |
Feb 1973 |
NL |
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Parent Case Info
This application is a continuation in part application of my prior application 443,844, Filed Feb. 19, 1974, now abandoned.
US Referenced Citations (5)
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
443844 |
Feb 1974 |
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