2014年6月29日星期日

Method for improving oil yield of oil a machine


1 pressing water and pressing temperature

Countless facts have proved, although the machine behavior control is good, but because of pressing water and pressing temperature control is not good or unstable,equally difficult to produce normal effect. Pressing water and temperature affected thestock of physical properties and chemical process.

The results of the theoretical research shows: blank should have the appropriate moisture and temperature, namely blank fluidity, oil viscosity and surface tension tominimize, ensure material embryo plastic and elastic appropriate, to keep pressing chamber pressure is normal. The actual test also indicated that: blank pressing water content can not be less than the limit of the suitable range into cakes, while pressingtemperature 110 ~ 130 ℃.

If the water is too high, will make the material embryo produces clumps of oil andwater; too low, material were pressed into powder, easy to coke instead of blockingbore. Similarly, if the temperature is too high, the material in the embryo carbohydratecoking, protein and other ingredients are destroyed, color darker, affect the oil quality;on the contrary, when the temperature is too low, the physical changes of normal andbiochemical condition cannot form.

Pressing water and temperature, usually by the pretreatment process to achieve.

Practice has proved that, in general, the "hot press method" in the oil extraction efficiency and economic benefit are significantly better than that of cold pressing. The"cold pressing method", will cause the pressing times increasing, daily processing capacity of greatly reduced, residual oil rate increased, consumption increased power,economic decline. It should be pointed out that, by using the cold pressing, because the oil with high moisture content, press the cake is not easy to be broken; secondpress, easily overhead in the hopper, effects of feeding and often stirring,troublesome operation, poor efficiency. Therefore, where possible, should try to use"hot press method".

2, the press bore pressure

The essence of pressing oil, is putting pressure on the stock removal of grease. Main reasons affecting the pressing chamber pressure is the cake thickness, feed quantity and quality of pretreatment (pressing the moisture and temperature etc.). The cakethickness and the oil efficiency relationship. The cake is thicker, the press borepressure is small, load is small, low oil yield; on the contrary, the cake is thin, high oil yield efficiency. But the thin, it will increase the machine load, causing the accident.The feed quantity should be controlled in a moderate flow, in order to avoid the "bypass' 'phenomenon, pressing chamber pressure to maintain the normal stable.

3, the time of pressing

Press time and the efficiency of oil has certain correlation. Generally, press time, oil flows out of a man, but the press time not too long, otherwise more heat loss, but the impact of the oil production efficiency and capacity. Therefore, in the premise ofefficiency of oil, as far as possible to shorten the time of pressing. The residence time of material embryo in the press bore, mainly depend on the screw shaft speed,followed by screw pressing ring recency and cake thickness. For some high oil content oilseed, can prolong the time of pressing, should choose the appropriatespeed.

SYL series spiral oil press belonging to the "high speed Griddle Cake", the so-called"high speed", refers to the spindle speed, feed the embryo in the press bore short residence time (generally only tens of seconds); the so-called "Griddle Cake" is that the cake thickness 1.5 ~ 3 mm, therefore, screw and the pressing ring wear phasequickly when. According to experience, usually 40 ~ 50 tons of rapeseed processingneed to check, partial replacement of wearing parts (especially the 3 - 4 screw and the adjustable cake). Since the 6YL series spiral oil press press time is short, for some oil (such as soybean protein and cold pressing, etc.) is good, but other oilfurther reduce residual oil rate is subject to certain restrictions, for different fuel, there should be a corresponding spindle speed.

4, pressing chamber temperature

The process of squeezing, squeezing chamber temperature directly affects theefficiency of oil, oil quality. The squeezing chamber temperature internal frictioncaused by external Fu heating mature embryo and pressing ring and the screw shaftsurface friction heat, stock turnover and heat generation, compensation metal bodyheat loss, to maintain the proper temperature required by the press. Howeverpressing chamber temperature is too high, will lead to oil and cake color even coke,total oils loss increased. Therefore, must establish the press bore heat balance between normal.

2014年6月27日星期五

Vegetable oil purchase skills


1, the smell the smell. Should have the inherent flavor of vegetable oil plant (such as peanut oil, sesame oil, Rapeseed Oil etc.), such as smell may be the acid value, peroxide value exceed the standard products.
2, see the appearance. Products of good quality, high degree of refining of edible vegetable oils should be clarified, transparent, with the variety of unique color, does not contain any impurity.
3, look at the price. Buying time to compare the prices of similar products. Attention should be paid to the product name, list of ingredients, recognition or similar name ormixed with other cheap vegetable oils to mislead consumers.
4, look at the label. Should choose large and famous enterprises to purchase products,label product name, list of ingredients, net content, the implementation of standards,production date, shelf life, factory name, product grades, whether to label GM, storageconditions should be complete.oil press

pellet plant,wood pellet plant,feed pellet plant

feed pellet mill machine through the straw and nutrition reasonable collocation topositive effect, and take the granulation technology, overcome the straw coarse texture hard, poor palatability, nutritional value is low, improve the utilization value ofstraw feed.
Because the straw resources are very rich in China, crop straw as a kind ofunconventional feed resources, but because of hard and rough texture, nutritionalvalue is not high, so for less than ten percent of feed, a large amount of straw are used as fuel returning.
1 pellet mill machine can keep the part of the heterogeneity of mixed feed, to prevent the animal food.
2 feed particle machine can improve the feed digestibility and palatability, feed particle machine can improve the feed intake, can obviously improve the production performance of animal.
3 feed density increased significantly, from twenty ~ fifty kg / m3 bulk straw increased to four hundred ~ five hundred kg / m3, improving storage stability.

2014年6月25日星期三

Key indicators of plant oil


The peroxide value. Edible plant oil peroxide value increased, indicating that the degree of oxidation of vegetable oil plant  increased, will lead to fat oxidation inferior,produce low molecular aldehydes and ketones much harmful to the human body,reduce the nutritional value of vegetable oil. "Food sanitation standard" provisions ofplant oil peroxide value should be less than 0.25g/100g.
The acid value. The acid value is an important health indicators of food oil processing acid value, increase food in vegetable oil, can cause fat fission, lower digestivefunction of normal human nutrition value, seriously inferior oil will produce harmful substances. "The provisions of acid value should be less than 3mg/g of ediblevegetable oil health standard".
Residual oil extraction solvent. The production of edible vegetable oil leachingprocess of oil extraction solvent containing trace, is mainly the alkanes mainly sixcarbon, some of the ingredients (such as benzene) has promoting effect on leukemia.Oil extraction solvent residue is an important health indicators of edible vegetable oil,edible vegetable oil "standard" hygiene regulations should be less than 50mg/kg, and the one or two grade soybean oil requirements may not be detected.
Heating test. Heating test is a convenient method for identification of edible vegetable oil refining degree. The project failed, the oil may be crude oil (crude oil), may also berefining level is not high, has not yet reached the standard of hygiene is not ediblevegetable oil must not be in the market.

2014年6月23日星期一

Vegetable oil

Vegetable oil plant  is a compound composed of unsaturated fatty acids and glycerolcompounded, widely distributed in nature, is obtained from the fruits of plants, seeds,germ oil. Such as peanut oil, soybean oil, linseed oil, castor oil, rapeseed oil. The main components of vegetable oil is a straight chain fatty acid and glycerol esters of fatty acids in addition, palmitic acid, stearic acid and oleic acid, also contains a variety of not
Saturated fatty acids, such as oleic acid, erucic acid, Tong ricinoleic acid etc..Therefore, the seed oil press in the unsaturated acid content in general than animal fat,iodine value higher than 70.

2014年6月20日星期五

Structure of press

Structure of oil press: 1 main body. 2 hydraulic transmission. 3 electrical control
It is as follows:
The 1 main body parts:
It is composed of a bottom plate, column, roof, pressing frame assembly, an oil receiving tray, nut and other parts, are the main
One of the pressing body, oil in the frame assembly, force by the cylinder assembly topromote the flow of oil from the press frame, the oil flowing through the joint, oil pan to the oil barrel.
2 hydraulic transmission part:
This is the machine to produce high oil plantrate of the main working power source, which is composed of a transmission shaft, worm gear, worm, gear pump, high pressure pump, relief valve, manual valve, cylinder assembly, pipe joints and other parts. This machine adopts the world's most advanced hydraulic pump station, South Korea threeplunger pump, compared, than the domestic two plunger pump speed, oil pressure,high temperature, oil temperature above 65 degrees without cooling device,sustainable work.
3.Electrical control part :
This is the machine is advanced, it is regulated by the motor, voltage meter,temperature control meter, pressure meter, power supply insurance and othercomponents.

2014年6月18日星期三

Peanut oil press features

1 value added: ordinary press material rolling after pressing, vice products can only be used as animal feed, the machine processing, such as one hundred catties ofpeanuts squeeze 28 -- 35 catty oil, peanuts can also recover processed into highprotein, low fat food, such as spicy peanuts, fish processing, artificial meat, peanut tofu Pi Huasheng pickles, peanuts, peanut candy, peanut, peanut food particles. Highvalue-added products.
2 without loss: ordinary oil press the screw extrusion, high temperature, oil nutrientsdecreased, the loss of raw materials 6%, the machine adopts physical pressing,without heating, no loss, the oil yield of oil can be adjustable, and famous brandcompared to the United states.
3 environmental protection: ordinary oil press , rolling after pressing with other raw material oil, and big noise. This machine adopts the direct filtration, without oil low noise, do not add any chemical raw materials, production process, in accordance withthe standard of green food.
4 high efficiency and energy saving

2014年6月16日星期一

Press the daily maintenance of the three elements

Used the press knows, oil press also has low and peak seasons, during the peak season, the use of press time is relatively long, relatively high frequency. Wear this time press is more serious, in order to prolong the service life of press, in the off-season when they need to do maintenance work.
1, the details determine success or failure
For some voids press to detailed examination, especially the gap between the screws haft and a doughnut, must ensure that the spacing in the normal range, when the middle blocked with debris, need timely, prevent the occurrence of jam event. Also check the bolts and nuts tightness, prevent in the use process because of the vibration loosening.
2, pay attention to the waterproof
The off-season is rarely used in the press, for placing time must be far away from water, prevent oil press oxidation rust. In the storage should be to prevent decay,must will excess oil expeller internal cleaning, to prevent residual impurities cause corrosion of oil press. In some bearing part daub lubricating oil, can prevent rust.
3, regular inspection
Although the off-season rarely use press, but in order to ensure the performance,need to regularly restart oil equipment equipment, can effectively prevent some rusting parts, effect of press flexibility. The need for maintenance of the circuit device, to prevent the cable during storage was a rat bite bad.