Soybean and Sunflower seeds oil processing machinery
1.1.Process Description
1.1.1.Metering cleanup
The purpose of measurement is to control the production workshop. Cleanup is very important for the pretreatment process. Slightly larger substances may lead to material wedging device clogged, it will corrode equipment, shorten life, reduce design efficiency. Therefore need to clean up a large sieve impurities clears with magnetic metal impurities.
1.1.2.Crushing
Crusher mainly consists of feeding device, magnetic separation equipment, Crushing rolls (on roller and a lower roller), several parts of the roller distance adjustment device, transmission and engine blocks and other components.
Material from the crusher to flow the feed inlet means, through the action of the feed device of the feed rollers, so that the material to a uniform flow rate through the magnet means, and flows on the inter-roller. Due to the presence of the roller speed difference, the two are not the same speed Roll, use scissors section tooth angle of the teeth on the roller and squeezing action, the material is preliminary broken.
1.1.3.Softening
Softening effect is adjusted after cleaning oilseed moisture and temperature, it has a certain plasticity. To steam rolling stock and rolling billet fried after the creation of favorable conditions. The softening temperature is generally 60 -70 ºC. At the same time softening the general grasp about 20min.
Softening mainly through vertical soften pot to achieve. Vertical softening monomer pan pot by superposition of several layers, each layer of the structure is substantially the same pot monomers have side and bottom sandwich the sandwich, the sandwich was passed through the steam heat, soften the material. Softening pot having a central vertical axis through the layers, each layer has two pot monomer paddle stirring wing is fixed to the vertical shaft, the stirring of the material layer. On each floor to floor opened a pot hole blanking, blanking hole at each layer are safe with automatic feed door, by controlling the quantity to control the falling material layer height of each pot. Meanwhile both sidewalls each pot exhaust pipe, connected to the exhaust manifold common to discharge softening process of evaporation of water vapor.
Its main advantages are: lower upper automatic feed control gate, which is driven by the underlying material feed pendulum rotation, driven under the upper material feed axis closed doors, bottom-up full of pot material, material from the open to the closed door, the next swing doors and feeding the material directly linked on the same shaft, transmission parts and less, and low manufacturing cost. Compared with this layer of the layer automatic feed control gate, under which the material door control reliability, and can adjust the height of the material layer, depending on oil and water; material continuous, level constant, with a strong feedback control; stop after feeding, nesting thorough.
1.1.4. Flaking
Flaking machine is mainly from the feed device, a magnet device, roll, hydraulic roll gap adjustment means several parts, transmission, frame and other components.
Flaking of material from the inlet flow to the feeding apparatus, the feeding apparatus of the role of the feed rolls, so that the material to a uniform flow rate through the magnet means, and flows between the rolls, roll squeezing action using , the material is rolled into a sheet 0.35-0.4mm embryo effectively destroys the tissue; better leaching effect. On each flaking machines are equipped with material level controller to ensure that the feed hopper full of material, effectively preventing flaking machine without material idling phenomenon. Flaking machine is equipped with a special dust removal system.
1.1.5.Puffing
After rolling billet material into the oil after extrusion machine Puffing treatment to strengthen the leaching effect, improve equipment production. Embryo piece being squeezed in the oil extruder, after rubbing, shearing, compression and other mechanical and wet, hot action and a series of frictional heat effects of steam injected, oil oily cells are completely destroyed grease fully exposed. At the end of the extrusion screw, material pressure and temperature are high, the material after high temperature and pressure of hydraulic die out due to a sudden relief, the rapid expansion of the material, the rapid evaporation of water to obtain a porous and has a high strength material extrusion .
1.1.6.Steaming and roasting
The main function of steaming and roasting is: billets have been undermining the basis of part of cells and tissues, through the swelling and heat, so that the oil blank cell rupture, thereby further undermining fuel cells and tissues; and promote oil in sufficient cohesion protein denaturation, colloidal damage , so that the highly dispersed fine oil can be released from the gel phase within the continuous gathered into larger oil.
Vertical structures with vertical steaming wok pan soften the same, but stay longer, higher discharge temperatures, lower moisture.
1.1.7.Pre-press
Pre-press using screw press oil, screw press with continuous processing capacity, dynamic short press time, the oil is high, and low labor intensity.
The main part of the screw press is virgin bore, bore the same squeezed juice and a squeeze cage cage rotating screw shaft thereof. It's working process is the use of the screw shaft screw lead shrinks, so that the volume of space is shrinking virgin bore produce squeeze effect; squeeze the oil squeezed out of the cage from virgin slit while the residue was pressed into crumb-like pie slices, from virgin continue to discharge shaft end.
1.1.8.Greaves separation
From the press out of crude oil, after crude oil / diesel separation scraper, Cheng tank and decanters separate oil impurity ≤0.5%. Especially decanters with a high degree of automation, compact structure, continuous operation, stable operation, adaptability, large capacity, easy maintenance and so on. Its working principle is: drum and the screw in the same direction at a certain speed differential rotation, the material from the feed tube feeding scroll continuously introduced into the inner tube, accelerated into the drum, under the effect of centrifugal force, the heavier solid phase deposited sediment layer is formed on the drum wall. Conveying spiral deposited solid phase continuous push to drum cone end, the slag discharge port outside the machine. Lighter liquid phase formation inner ring, the big end of the overflow outlet from the drum continuous overflow drum, through the discharge port from the plane.
1.1.9.Cooling
Extruded material, pre-press cake into the flap cooler dry cooling, in order to improve the quality of the leaching material, improve the leaching effect.
Flap cooler mainly by the base, top, sprinkle feeders, cooling warehouses, unloading equipment, hoppers and other major components.
After closing the material damp wind feeder or off the wind into the cooling compartment, under the effect of spreading the feeding mechanism of uniform tile in turn arranged in parallel to multiple boards, when the material accumulated to a certain height, the feed hopper on bit is sensitive to the level of information and then send a signal, so that the hydraulic cylinders push crank linkage action, flap around their axis of rotation, respectively, the material starts from the gap between the fall of each flap, uniform inflow discharge hopper; flap transfer to a set angle, the flap opening of the flag pole touches the limit switch, the hydraulic system through the valve operation, making the cylinder stop, shutter stops at a predetermined position, blanking continue, time relay, after a certain amount of setup time hydraulic cylinder back to work, the flap back to the original position, the material is no longer falling, to complete a discharge cycle. If the re-accumulation of material to material level height, material level signals, repeat the above unloading process. In the whole process, the cooling fan is always open. Cold bottom up, from cold to heat; material gradually downward, from hot to cold (counterflow cooling principle). Cooling hot materials encountered in the upper compartment is hot, the lower cold material encountered is cold, making the material to obtain a uniform and adequate cooling in the downstream process to ensure product quality.
1.2.:Process and Equipment characteristics:
- More rational dust removal system to ensure that workshop neat and clean, while reducing dust emissions;
- More recycling measures to reduce human errors, especially shapeless cake cycle, greatly reducing the labor intensity while driving;
- Decanters use, it has a high degree of automation, compact, continuous operation, stable operation, adaptability, large capacity, easy maintenance and other advantages;
- Condensate sensible heat utilization, providing more energy efficiency measures;
- Scraper, bucket elevator has a stall protection switch;
-- A high degree of automatic control, when the subsequent conveyor device fails, the front conveyor unit will automatically stop;
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