At present, small screw presses are used more and more in rural areas. Some users do not have a good grasp of the use of technology, resulting in low oil output, poor oil quality, many failures, and poor efficiency. The correct use of the small-sized spiral screw press, the pre-treatment of the oil, the refining of the oil, and the elimination of common faults are described below. (1) Use 1. After installation and commissioning of the oil press, after purchase, select an indoor installation with sufficient light, air circulation, sufficient work area, and use cement to handle the base of the machine. After installation, check according to the machine's instructions. Focus on checking whether the installation of the machine is correct and whether the connecting pipes and parts are firm and safe. Then debug to make the machine in normal working condition. Before the official start-up, Honesty checks the parts for looseness and damage. The bearing lubricating oil is full. Turn the pulley and listen for any impact or other noise between the transmission parts. Adjust the gap between the screw shaft and the cake ring, the method is to make the screw axially before the cake mouth, and then reverse 2-3 turn, so that the gap is controlled at 0.5-1 mm. 2. After the machine is turned on, the oil press should be idling for 3-5 minutes, and then the oil cake or raw materials should be fed slowly and evenly to heat the machine. The body temperature can be higher, and vice versa. It is generally required to start pressing at 70-80°C (when touching the shell of the body and feeling hot). 3, pressing and pressing, should strictly control the thickness of the cake, the type of oil is different, the number of pressing is different, the control requirements for the thickness of the cake is also different, generally 0.3-2.5 mm. The specific data can refer to the specifications of each oil press, depending on the circumstances. When crushed sesame and other oils with higher oil yields, they can be fed in batches (5 kg per batch is appropriate), and each batch is squeezed 2-3 times. Due to the first press, the oil flow is large, and the amount of heat taken away is more, and the first pressed oil cake can be installed immediately for the second three times. When the oil is re-pressed, the oil is relatively reduced, the heat of the oil flow is less, and the temperature of the machine can be immediately raised to 70-80°C to ensure the normal working temperature. Each batch of feed should be carried out in the above order. During the work, wooden sticks are used to diligently feed into the hopper to prevent the oil material from blocking or bypassing the bridge, so as to ensure uniform feeding. The leakage should be cleared in time and the oil residue can be returned to the hopper for further pressing. Before stopping, new feeds should be stopped, but some oil cakes need to be fed to discharge all the remaining cakes in the scoop, and then the gap between the cakes is increased so that the excess oil slag in the scoops can be discharged. 4. After cleaning and stopping work after shutdown, the screw shaft of the oil press should be pulled out, and the residue in the press and various gaps should be cleared in time to avoid induration and affecting the next work. When pressing the screw, it should be flattened in the north to prevent bruising, and should be placed after unloading to prevent deformation. (B) the elimination of common faults 1. Sudden parking, screw shaft jammed 1 early press, scraping without heat, that is caused by a large number of feeding, can be used hot oil seeds (also can be used to heat the water dry cake) slowly feed, repeated The mill raises the temperature. 2 During the pressing process, the squeezing smashed the material, and then a large number of feeding, resulting in poor discharge, the squeezing slag caused by oil blockage. Therefore, the feeding should be continuous and uniform, and the cake should not be too thin. In the event of a failure, the power supply should be immediately shut off, the feed adjustment plate inserted, the feed stopped, and the discharge plate opened, and the screw shaft was opened and exited. Then remove the oil from the bowl and re-press it. 3 If the oil is not clean, there are stones, metals, and other hard foreign matter entering the squeezing. 2, no oil or oil rate is too low 1 raw material is not wet or too dry, damp and moldy, seed material is not full, caused by excessive impurities. The oil must be re-chosen and the oil should be at high speed. The 2 rows of oil seams are blocked by the dregs or the squeeze bars are too tightly assembled. Should adjust the tightness of the pressing strip according to the level of oil content. 3 At the beginning of the pressing process, the temperature of the squeezing simmer is low, the cake is too thin or thick, parts are worn, etc., which can cause no oil or low oil yield. 3, run over the slag too much oil, a small amount of slag between the squeeze bar is a normal phenomenon. If the slag is too much, there may be the following reasons; 1 individual press bars are bent or the gap is too large. At this point, you can remove the squeeze bar, with a gauze or oil stone will be a three-convex square bar grinding, straightening pressure bar reloading, if necessary, some thin metal pad, so that the gap is maintained in the 0.05-0.08 mm range. 2 The plasticity of the oil is not good, and it is difficult to make the cake, which increases the pressure of the machine. At this point, the appropriate amount of oil should be mixed with water, and grinding machine, increase the machine temperature to improve the oil plasticity. 3 also cake is too thin. The cake thickness should be appropriately increased according to the specification. 4. One of the reasons for the unsmooth cakes is that the thickness of the cake is not appropriate and the thickness of the cake should be adjusted. The second is that due to dry foreign substances such as cakes or stones and iron pieces entering the machine, the machine should be shut down immediately. It also removes dry cakes and debris from the doughnuts and casings. And according to the cake ring wear, repair or replace new accessories. 5, return oil may be due to oil seam plug or oil seam too small surface not caused. The former should remove the press bars for cleaning, and the latter should adjust the gap between press bars to grind the oil seams with oilstone. 6, do not feed 1 oil too much water, should be sun or fried. 2 Pressing screw surface is not light, use abrasive cloth to rub the screw axis or use dry slag to polish. 3 Press bars are worn, the press bars polygons are destroyed, and the press bars can be turned over or damaged. 7. The cause of burning simmer is low oil content of the oil, high speed of the squeezing screw, high temperature of the machine, high water content of the oil, change of the pulley, reduction of the rotation speed, and control of the body temperature.
Common Snapdragon
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