Dehydrated carrot granules refer to dried products that try to preserve the original flavor of carrots except for a certain amount of water. The function of dehydration is to reduce the water in carrots, increase the concentration of soluble substances, and inhibit the activity of microorganisms. At the same time, the activity of enzymes contained in carrots is also inhibited, and the products can be stored for a long time. It can often be seen in instant noodle seasoning packets.
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Identify the advantages and disadvantages of oil and replace the oil should pay attention to the problem
The quality of diesel engine work and the length of life depends to a large extent on the amount of oil and the quality of the quality. In order to save money, some agricultural machinery operators did not replace the engine oil in time, but adopted an unrestricted method of adding engine oil. Finally, the oil in the oil pan became a large-viscosity bitumen, and in the winter, even the start-up was caused by excessive resistance. Unable to proceed. Although it saved a few dollars, it destroyed a diesel engine. In order to avoid the occurrence of similar accidents, the farmer should master the method of identifying the oil quality and add and change the oil in time. First, the method to identify the merits of oil quality 1, the new oil can be heard through the nose, see the difference between the quality of good and bad nose smell: that is smell smell, qualified oil should have no special smell, only slightly aromatic. Any oil that smells irritating and has a bad odor is a bad or bad oil and must not be purchased. Seeing: Observe the color of oil with the eyes, and domestically-made genuine bulk oils are mostly light blue, with bright luster and uniform flow. All those who have uneven colors and lines with different colors are all inferior or deteriorating oils. If such oil is used, it will seriously damage the engine. The color of imported engine oil is golden blue, crystal clear, oil barrels are exquisitely manufactured, the edges of the pattern code are clear and neat, there is no leakage and overlap, otherwise it is fake. 2, the use of oil in the identification of agricultural hand only to identify the quality of oil used in order to determine whether the need to change the oil. There are four methods commonly used to identify the quality of the used oil. Using the following four methods to identify the oil should be performed when the engine oil has not yet settled after the engine is stopped. Otherwise, the correct conclusion may not be obtained. Because the oil is precipitated, the oil floating on the top is often a good oil, so that only the surface phenomenon is checked, and the deteriorating oil or impurities remain at the bottom of the oil pan, thus causing misjudgment. Oil drop inspection: Drop a drop of oil in the oil pan on the white paper. If the center of the oil drop is dark, it is dark brown and uniform without particles. The surrounding yellow infiltration is very small, which means that the deterioration of engine oil should be replaced. If the center of the oil drop is small and the color is light, the surrounding yellow infiltration marks are large, indicating that the oil can be used. Dipstick identification: Pull out the oil scale to see if the mark is clear in the light. When the oil on the dipstick can't see the mark, it means that the oil is dirty and needs to be replaced immediately.æ“æ» Identification: Take out a little oil from the oil pan and place it on your fingertips. In case of stickiness, if there is a sticky feeling and there is a phenomenon of drawing, it means that the engine oil has not deteriorated and can still be used, otherwise it should be replaced. Dumping identification: A small amount of oil in the oil pan is poured into a container and then slowly poured out of the container to observe the luster and viscosity of the oil flow. If the oil flow can maintain a slender and even, indicating that there is no gum and impurities in the oil, it can be used for a period of time, otherwise it should be replaced. Second, add and replace the oil should pay attention to the problem There are many books that: oil can not be added, can only use the replacement method, it is not true, sometimes the reduction in the amount of oil does not mean that the decline in oil quality can not be used, just because For some reason, if it is replaced directly without adding it, it will cause unnecessary waste. After the new engine is completed, the engine oil should be completely replaced and the oil path cleaned. It cannot be added. Its purpose is to eliminate mechanical impurities generated during the run-in period. For engines with poor working conditions, such as severe cylinder blow-by, the newly replaced engine oil tends to fail quickly. In this case, the engine oil should be replaced with a major overhaul. The oil that is to be replaced after the running-in of the diesel engine should be regularly checked and added according to the amount of its consumption, but it cannot be added more than twice. If added all the time, the amount of oil on the surface is sufficient. In fact, it contains a lot of impurities and gums that are extremely unfavorable to lubrication, so that the amount of oil that is effectively lubricated is greatly reduced, and the wear of the parts will be accelerated. Therefore, it should be replaced in time according to the replacement standard. The following steps should be followed to change the oil: 1. Start and warm up the diesel engine. After the temperature of the diesel engine has risen to the normal operating temperature, the waste oil will be drained while hot (including the oil filter and radiator oil). 2. Prepare cleaning oil in a ratio of 1:1 of engine oil and diesel oil. Add the cleaning oil to the specified oil level. Start the engine and run it at a medium speed for 5 to 10 minutes. When the heat is applied, clean the oil. If necessary, clean it twice. 3, cleaning or replacement of oil filter, disposable filter must be replaced, centrifugal oil filter should clean the rotor cavity. 4. When installing the oil filter, the filter should be filled with clean oil to ensure the amount of oil in the oil channel at the beginning of the start-up to prevent starting wear. 5. Select the appropriate oil and add it to the oil pan. When the clean oil exits the oil outlet, tighten the oil drain plug and adjust the oil level to the specified height. 6. After changing the oil, check the oil pressure. If the pressure changes, it should be adjusted according to relevant regulations. 7. The engine with the oil added for the first time shall be allowed to rotate without ignition, until the oil pressure gauge has instructions, so that the engine can be started, so as not to cause the starting wear of the moving parts. In short, the scientific inspection and timely replacement of engine oil is an important part of ensuring the use of diesel engines and prolonging their service life, and must be highly valued by agricultural operators.