Features: compact structure, high material layer, reliable operation and low power consumption; high extraction efficiency, mixing oil concentration is high, and suitable for a variety of oil, powder degree of material for embryo-storey permeability due to poor material leaching effect slightly worse.
Leaching process: Rotocel extractor leaching process is a high material layer countercurrent leaching. When leaching, first by the material sealed material embryo auger, according to production requirements even feed FEED grid. After leaching cell memory is full of materials, along the direction of rotation turn around, you can feed in order to complete the cycle spray and drain, washed with fresh solvent, and finally drained out meal, forming a cycle to achieve continuous production.
Production technology requirements:
1, the charge capacity of the material lattice of 80% -85%;
2, the material temperature dip 50-58 ℃, leaching temperature above 50 ℃;
3, the solvent temperature 50-55 ℃;
4, using a large spray of fresh solvent way, but not to drip dry overflow segment; mixed oil spray page segment to higher material surface 30-50mm is appropriate; but shall not overflow;
5, extractor operating cycle 75-120min;
6, soluble material ratio of 1: (0.7-1.3);
7, mixed oil concentration level by feeding embryo oil content and operation of the standard may be, under the premise achieve residual index higher the better, just as the operating indicators: if more than 20% of soybean oil and other materials embryo embryo extract, the mixed oil concentration require 20% -30%; extruded material embryo may reach 35% -40%;
8, meal raffinate generally about 1%;
9, the amount of solvent wet meal containing15% -40%.
1, before driving to check all piping, valves, instrumentation is airtight, smooth and sensitive; idling check the motor drive is normal;
2, drive commissioning, make sure everything is normal pumped fresh solvent;
3, when the oil collection bucket filled with fresh solvent up to a certain location to start extractor.
4, when filled with the material of the first leaching embryo cell to the next position sprinkler pipe, sprinkler pipe valves sequentially turned on start spraying until all valves open. At the same time observe the material lattice spray penetration, any time to adjust the size of the spray volume.
5, pay close attention during the operation of the above process operating parameters, with particular attention to the solvent mixture of oil flow; feed a meal is normal; leaking circumstances of each part in order to solve the problem at any time. Adjusting solvent than necessary in order to ensure to achieve a residual oil meal indicators.
Common Problems and Solutions:
1. Go to the rotating body is not normal, beep or sudden stop Go: The reason is the chain slack or partial or full loss; reducer fault or sprocket Sealing, etc;
2, a meal or an abnormal load increase scraper sound: The reason is that under the hopper blanking not normal; wet meal containing excessive moisture and solvent; subsequent steam offline blocking materials; scraper mechanical failure itself;
3, under the hopper bypass: The reason is that under the hopper overflow into the mixed oil or aqueous solvent resulting in poor cutting;
4, mixed oil concentration is not high: the reason may be self-circulating spray amount is too small; or fresh solvent is not enough; leaching temperature is too low, poor permeability leaching time is not enough to affect the oil;
5, do not fall down residual meal: The reason is excessive or solvent feed ratio is too small, too small mixed oil circulating spray; feed moisture content is too high embryo; extractor speed is too fast and so on.