On the 13th of January, the corn drying tower of the Farmers’ Professional Cooperative in Shengli Village of the Moradawa Daur Nationality Autonomous Banner was operating. “The drying tower is used for dehydration of corn to prevent mold deterioration and facilitate storage,†said Zhang Wei, head of the cooperative. In 2014, the "hometown of soybeans" Moqi in accordance with the overall thinking of "reduce beans, increase rice, expand rice, push the potato", to increase plant structure adjustment efforts, corn planting area of ​​more than 4000000 acres, accounting for a total area of ​​45 arable land %the above.
At present, China's grain drying tower market is generally still at a period of development. Due to the low social security and the increasing support for government subsidies at all levels, the market space is huge, and the grain drying tower market is developing at an alarming rate.
At present, most of the users investing in the construction of grain drying towers are rural food processing enterprises, large grain producers, agricultural cooperatives, and other rural economic cooperative organizations. Sporadic individual farmers rarely care about it. The funds for investing in grain drying towers also come from financial subsidies and government projects at all levels of government. Users self-financing only account for a small part, and even individual governments have strong support for areas where users do not need to pay for purchases. It is due to the existence of these non-market factors, coupled with the lack of effective supervision of the government and industry sectors, the current dryer market in China can be described as a mixed bag of chaos. Apart from the fact that several brands that entered the market have always insisted on high prices and relatively stable development, most of the brands that have rushed in afterwards have chosen low-end, low-cost strategies to seize the site, which has caused the dryer market competition to become fierce and complicated. In particular, individual speculative manufacturers do not hesitate to “make money and drink at a loss,†or even misrepresent the idea of ​​misleading consumers by misleading their consumers. This is what makes the vast majority of users perplexed and overwhelmed, giving the Chinese food drying tower market a fledgling A layer of dark clouds. The author discusses some personal opinions based on some chaos acquired from the market a few days ago, with a view to helping the masses of users to go out of their misunderstandings and promote the sustained and healthy development of China's grain drying tower market.
The cost of use is more dependent on fuel costs
The principle of the grain dryer is that the hot air stove converts thermal energy into hot air, and then the hot air is sent to the grain drying tower through a hot air blower, and the hot air contacts the grain to evaporate the grain moisture. The common food dryers on the market can basically match the hot stoves of burning oil, natural gas, electricity, coal and various biomass. The operating cost of the grain dryer depends more on the selected fuel. Non-food drying tower itself.
Food drying towers may not be a good thing
The drying process of grain crops such as corn and rice is a very complicated process of quantitative change, which is determined by the physical and physiological characteristics of the grain itself. The time curve of the evaporation process of the grain moisture drawn by the professional technicians is almost in line with the parabola. In layman's terms, when the grain water content is as high as 35%, take 200 tons of grain drying towers per day as an example. If the grain drying tower is loaded with 50 tons of corn, the corn must reach 15% of the final dry moisture, and it must be in the grain drying tower. The internal operation of six hours; if the grain drying tower installed 100 tons of corn, to reach the final dry moisture of 15%, the corn in the grain drying tower running time becomes 12 hours. Due to the slow drying process affecting the quality of the corn, the excessive drying of the grain drying tower will cause the color of the dried grains to deteriorate, and may even cause burnt grains. If blindly pursuing the grain content of the food drying tower, the quality of the dried grain will inevitably drop greatly, not only with a high waist rate, a high rate of broken rice, but also with a turbidity, whiteness, and ashiness, as well as product phase and nutritional value. Will be affected.
Benzene, an organic compound, is the simplest aromatic hydrocarbon with a chemical formula of C6H6. At room temperature, it is a sweet, flammable, colorless and transparent liquid with carcinogenic toxicity and a strong aromatic odor. It is insoluble in water, easily soluble in organic solvents, and can also be used as an organic solvent itself. The ring system of benzene is called benzene ring, and the structure after removing a hydrogen atom from the benzene ring is called phenyl, which is represented by Ph, so the chemical formula of benzene can also be written as PhH. Benzene is a basic petrochemical raw material, and its output and production technology are one of the symbols of a country's petrochemical development level.
On October 27, 2017, the list of carcinogens published by the World Health Organization's International Agency for Research on Cancer was preliminarily sorted out for reference, and benzene was included in the list of Class I carcinogens.
Foreign name: Benzene, benzol, benzeen
Alias: Rest oil
Chemical formula: C6H6
Molecular weight: 78.11
CAS login number: 71-43-2
EINECS accession number: 200-753-7
Melting point: 5.5℃
Boiling point: 80.1℃
Water soluble: insoluble
Density: 0.88 g/cm³
Flash point: -11℃
Application: Used as spices, dyes, plastics, medicines, explosives, rubber, etc.
Security description: S36/37; S45; S53
Hazard description: R11; R36/38; R45; R46; R48/23/24/25; R65
UN Dangerous Goods Number: 1114/1115
The benzene ring is the structure of the benzene molecule. It is a plane regular hexagon, each vertex is a carbon atom, and each carbon atom is combined with a hydrogen atom. The carbon-carbon bond in the benzene ring is a unique bond between single and double bonds, with a bond angle of 120° and a bond length of 1.40Å
Benzene Series Intermediates,2 4 6-Trimethylbenzaldeliyde,4-Iodo-3-Nitrobenzoic Acid Methyl Ester,4-Iodo-3-Nitrobenzoic Acid
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