Catalog of grain and oil machinery and equipment is what grain processing machinery process grinding machinery classification grain machine engineering equipment selection guide grain and oil machinery and equipment installation grain and oil machinery and equipment routine maintenance grain and oil machinery brand 1 grain and oil machinery and equipment is what grain and oil machinery industry is an important part of the grain and oil industry. Grain and oil machinery industry, including rice, flour, oil, feed processing equipment manufacturing; grain and oil storage, transportation equipment manufacturing; deep processing of grain and oil food, as well as packaging, metering, sales equipment; grain and oil testing instruments and equipment.
2 grain processing machinery process grain processing process can be divided into two broad categories:
Process I: is the rice, sorghum, corn, millet and other raw grains dehulled, peeled, milled into granular finished grain;
Process II: is the wheat, corn, barley, buckwheat, oat and other raw grains to remove the skin and germ, milled into a finished powder.
General process:
The raw grain is firstly cleared by the cylinder initial clearing sieve, and then by the reciprocating vibrating sieve, high-speed vibrating sieve, specific gravity de-stoning machine and magnetic separating equipment, etc. (see the grain cleaning machinery) to remove all kinds of impurities, and then enter into the hulling machine, to take off and separate the husk. The discharged grain and brown mixture is sent to the grain and brown separator. In China, the main development of plane rotary grain and brown separation sieve, the use of rice and brown rice in the particle size, specific gravity, friction coefficient and elasticity and other aspects of the difference between the unhusked rice separated and sent back to the huller; brown rice into the rice milling machine into white rice. Then the finished product is sorted out, removing the chaff and thresh from the broken rice, that is, the finished white rice. Rural China commonly used rice milling machine directly into white rice, but the rate of rice is lower, more broken rice. Rice milling process and the main equipment used in the figure. Wheat and other processing process is the original grain by the initial cleaning sieve preliminary cleaning, by vibrating screen, wheat machine, selector and wheat washing machine to remove a variety of impurities and adherence to the surface of the wheat grains of dirt and filth. The cleaned net wheat then goes through the magnetic separation equipment to remove magnetic impurities and then enters the mill to grind into powder, and then extracts the flour through the flat sieve, and then the intermediate material enters another mill to grind, and so on to extract the flour repeatedly, and finally the bran is discharged through the bran brushing machine and the round sieve processing. In the making of special or top grade flour, a clearing machine is also used to separate the pure and purer endosperm particles from the intermediate materials discharged from the mill and flat sieve, and further grind them into special and top grade flour.
3 Classification of Grinding Machinery I. Longitudinal Pendulum Series Mill
Longitudinal Pendulum Series Mill is a technological innovation on the basis of the traditional Raymond Mill, the mill's various technical indicators compared with the traditional Raymond Mill have been greatly improved, is a new type of Raymond mill with high efficiency and energy saving. Longitudinal pendulum mill is suitable for grinding limestone, calcite, marble, talc, gypsum, barite, Ying Shi, zeolite, manganese ore, ilmenite, phosphate rock, bentonite, starch, kaolin and other hardness of Mohs' seven or less, the humidity in the humidity of less than 6% of the non-flammable, explosive materials, fineness in the 0.18-0.015 (80-800 mesh) adjusted at will between the R-type pendulum mill, is the R-type pendulum mill of the new generation! It is a new generation of R-type pendulum mill.
Second, high pressure roller mill
The high pressure roller mill is mainly composed of main machine, fineness analyzer, blower, finished cyclone powder accumulator, bag dust collector and connecting air duct. According to the needs of users can also be equipped with crusher, elevator, storage silo, electromagnetic vibration feeder and electrical control cabinet and other auxiliary equipment. In the main machine, the grinding roller assembly is suspended on the grinding roller hanger through the cross stretcher shaft, the grinding roller hanger is fixedly connected with the main shaft and the shovel knife holder, the pressure spring is on the outer end of the cantilever in the grinding roller bearing chamber, forcing the grinding roller to be tightly pressed on the surface of the inner circle of the grinding ring by taking the cross stretcher shaft as the pivot point, when the motor drives the main shaft to rotate through the driving device, the shovel knife installed on the shovel knife holder rotates in synchronization with the grinding roller, and the roller rotates in the rolling of the inner circle of the grinding ring at the same time. The motor drives the analyzer impeller to rotate through the transmission device, and the higher the rotating speed of the impeller, the finer the separated powder.
Three, high-pressure micro-powder mill
High-finesse pulverizer is composed of coarse crushing, fine crushing, wind conveyor and other devices to achieve the purpose of the pulverizer in the form of high-speed impact. The use of wind energy into powder at a time, eliminating the traditional screening procedures. Inside the main machine of the high pressure micro powder mill, there is a high pressure spring with 1000-1500 kg pressure fastened on the grinding roller hanger. High Intensity Mill . After the high intensity mill starts to work, the grinding roller rotates around the main shaft and rolls close to the grinding ring under the action of the high pressure spring and centrifugal force, and the pressure is 1.2 times higher than that of the Raymond mill under the same power condition, so the output is greatly improved. When the material to be ground into the grinding chamber, the shovel knife shoveled up into the grinding rollers and grinding ring between the grinding, grinding powder with the drum phoenix machine circulating wind into the analyzer, qualified fine powder with the gas flow into the cyclone collector that is finished products, large particles of material fall back to regrind. The circulating wind returns to the blower to repeat the above process, and the remaining wind enters the bag filter to purify. When the wear and tear of the grinding roller and ring reaches a certain degree, the length of the high pressure spring is adjusted to maintain a constant grinding pressure between the grinding roller and the ring, so as to ensure a stable output.
Four, ultra-pressure trapezium mill
Ultra-pressure trapezium mill has been widely used in electric power, mining, metallurgy, chemical industry, iron and steel, building materials, coal and other industries, resulting in huge economic and social benefits. Mainly used in mining, building materials, chemical industry, metallurgy, thermal power, coal and other industries grinding Mohs hardness below 9.3, humidity below 6% of a variety of non-flammable and explosive mineral materials, the fineness of the finished product can be adjusted arbitrarily in the 30-400 mesh, for example, cement (clinker), quartz, feldspar, calcite, dolomite, graphite, fluorite, wollastonite, phosphorite, calcium and magnesium phosphorus fertilizers, coal, gangue, slag, zirconium, talc, granite, sand, sand, sand, sand, sand, sand, sand, sand, sand, sand, sand and sand. sand, talc, granite, potassium feldspar, marble, barite, ceramics, glass and so on more than a thousand kinds of materials grinding processing.
4 grain machine engineering equipment selection guide 1, the difference in production technology. Due to the different years of enterprise founding led to different strengths, the technical content of the mastery is also different. Corn deep processing equipment production technology directly affects the quality of the products produced, but also affects the fundamental reason for the difference in product prices.
2, the difference in the use of materials. To produce quality products, good technology alone is not enough, but also need good materials, otherwise, the hardware is not pass, how will produce quality products.
3, the use of accessories. Grain processing equipment is assisted by many accessories, if the big structure is good, but the accessories can not keep up, will also affect the overall quality of the product.
5 Grain and oil machinery and equipment installation 1, before use, must carefully read the instruction manual, familiar with the performance characteristics of the machine and operating methods.
2, before starting the machine, must carry out a comprehensive inspection, the fasteners shall not be loose, the handle rotates flexibly, rotate the pulley by hand, the running parts should be normal, there shall be no abnormal sound, and then fill 30# oil in the reducer.
3, loosen the lock nut, counterclockwise rotation of the adjusting screw, (adjusting handle counterclockwise rotation, narrowing the gap between the cake, adjusting handle clockwise rotation, widening the gap between the cake) so that the conical surface of the squeeze screw against the conical surface of the cake ring, and then clockwise rotation out of the adjusting screw (rotate 3-5 turns), and then tighten the nut, ready to start.
4, the machine is connected to the three-phase four-wire power supply, the power supply is connected, the spindle should be rotated counterclockwise, regardless of the circumstances, the machine must have a good grounding device, otherwise it can not be turned on.
5, adjust the temperature controller
The temperature required to press 120 ℃ -180 ℃ (according to the oil depends on) to open the heating switch to the host of the heating position, the machine heating temperature, the temperature controller on the green light, the red light is off, when the machine temperature rises to the set temperature, and the red light is on the green light is off, the temperature is automatically controlled and maintained in the machine. Set temperature, winter temperature is low, the heating switch to the host all heating position, so that the temperature of the oil pan rises, easy to leave the oil.
6, press the main motor button, (the host switch to the positive position) the host began to run, the direction of rotation should be counterclockwise rotation.
7, the new oil press installation for 4-8 hours after grinding, the method is to have dried oil from the hopper cake feed slowly, repeated back to the press, so that the press chamber polished, remember to start grinding do not pour the material directly into the hopper, but to hand-feeding is appropriate to prevent the press screw shaft jammed. If feeding too hard, the press chamber appears abnormal sound or press screw shaft jammed, should immediately stop, eliminate obstruction, or reassemble the good and then start the grinding, it is strictly prohibited to force the trailer.
8, normal oil extraction, must maintain uniform feed, do not too much or too little or broken material idle. At this time the machine load is normal, smooth operation, rhythmic sound. Cake smooth, low-pressure section of the basic dregs, high-pressure section of a small amount of dregs, but the proportion of dregs in the oil is not more than 10%, the temperature in the chamber can reach 150-200 ℃, out of the mouth of the cake out of the smoke should be discharged through the shroud by the smoking pipe. Squeeze out the hot cake should be spread out in time, do not rush to pile or shipment, otherwise it will produce natural phenomena. When the continuous working time is long, the machine temperature is too high, should take the electric fan blowing and other cooling measures.
9, when the pressed oil flows into the oil filter above, press the vacuum pump button, the vacuum pump starts to run, the air inside the oil filter is pumped out, the internal pressure is formed inside the oil filter barrel, the oil above is naturally pumped into the oil filter, and the oil residue is isolated on the top of the filter cloth, to be pressed, the oil is pumped, open the valve on the oil filter, stop the vacuum pump running, the filter cloth is formed on the dry residue, scraped off with a scraper, and then the filter cloth can be removed. The oil filter can be released from the valve at the bottom of the pure oil filter.
10, shutdown. Stop feeding before stopping the machine, and then put a small amount of cake chips, to be the remaining material in the press chamber exhaust, no more cakes out of the cake mouth before stopping the machine. After stopping the machine, turn the adjusting screw clockwise for 1-3 turns, and then disconnect the power supply.
6 daily maintenance of grain and oil machinery and equipment 1) first of all should be the lubrication point for oil, grease, after the no-load test drive and then load test drive, and finally put into normal production.
2) operation should be started empty, to be normal operation, before starting to gradually and uniformly add material; parking must be waiting for the machine after the material delivery, no-load parking.
3) To carry out daily inspection, if found abnormal sound, should immediately stop to identify the cause.
4) To regularly check whether the rollers and drums rotate freely, if necessary, then timely replacement of rollers or head and tail drum bearings, and even rollers. Timely replenishment and replacement of lubricating oil material.
5) If the tape runs, swims and sags too much, etc., the reason should be found out in time, and corrected quickly by adjusting the head and tail pulley and the tensioning device.
6) The tape should not be in contact with gasoline, diesel, oil and other greasy materials; conveyor should not be exposed to sunlight or rain, so as to avoid corrosion of the tape, affecting its service life.
7) For the long conveyor, in addition to the total start and stop switch should be equipped, but also along the length of the conveyor every 20m or so to set an accident stop button, so that the operator in the discovery of conveyor accidents in a timely manner to deal with the shutdown.
8) operation and maintenance personnel such as the need to cross the conveyor, must be equipped with railings across the ladder; if the conveyor is installed in mid-air, its net height (the distance from the conveyor body to the ground) shall not be less than 1.8m.
9) all transmission parts of the belt conveyor must be installed safety cover.
10) In order to prevent the material and dust flying, if necessary, can also be placed in the whole length of the conveyor specially designed dust cover.
7 grain and oil machinery brand industry recommended brands BUHLER Buhler grain engineering FENGSHANG FAMSUN MEYER MEYER MYANDE COFCO Chen grain machine Yongxiang YONGXIANG Jiexun SATAKE SATAKE