![<?echo $_SERVER['SERVER_NAME'];?>](/template/twentyseventeen/skin/images/header.jpg)
In recent years, the cotton planting area of ​​this city has been basically stable at about 1 million mu. Most of the areas have been planted for 3 years in a row. Some areas have been planted for more than 5 years, and the “white pollution†caused by the residual film produced by the film-planting technology. Increasingly serious. According to an authoritative film residue test conducted by the Municipal Agricultural Machinery Test and Appraisal Station last year, the land planted in this city for three or four years has reached 16.93 kg and 22.73 kg per mu, indicating that the residual film pollution of most cotton fields in the city is close to serious. degree. In order to solve the problem of “white pollution†in farmland, the city has implemented the demonstration project of introducing new technologies for agricultural machinery since last year.
A few days ago, the reporter saw at the scene of the cotton field that after the cotton stalk cleaning machine was pulled by a common tractor, the long cotton stalk and the residual film of the white flower were respectively pulled out and collected collectively. According to the introduction of the experts of the Municipal Agricultural Machinery Research Institute, the mechanized operation of residual film recycling after cotton harvesting can complete the three steps of cotton stalk extraction, mulching cleaning and rotary tillage, cotton stalk removal rate and residual film. The recovery rate is 95% and 80% respectively, and it can work 4 to 8 mu per hour, which is more than 10 times higher than the manual operation efficiency. The technology has obvious social, economic, environmental and ecological benefits. It is conservatively estimated that each mu of cotton land can increase farmers' income by nearly 100 yuan, and the agricultural production environment is greatly improved.
Dichloromethane (DCM) is a multifunctional and powerful chloride solvent known for its high solubility. As a solvent, it is often used for coating removal, metal cleaning and polishing; It can also be used as a processing solvent in the production of drugs, polycarbonate, cellulose ester and photographic film, and as an extraction medium for aerosol propellant and food processing. Other uses include adhesives, cosmetics, plastic processing and foaming. Dichloromethane has many characteristics such as super solubility, low flammability, high cost efficiency, recyclability and rapid evaporation. Therefore, it has long been the preferred solvent for a variety of applications, mainly in polyurethane foam blowing, metal cleaner, adhesive, paint stripper and pharmaceuticals.
Dichloromethane is a widely used organic solvent, which is slightly soluble in water, easily soluble in ether and ethanol, and volatile at room temperature. It can cause poisoning if used carelessly. Many commonly used reagents contain dichloromethane, such as various paints, coatings, furniture polish and cleaner, hair styling agent, household air cleaner, deodorant, leather shoe polish and cleaner, etc.
Methylene Chloride, Dichloromethane,Methylene Chloride Dichloromethane DCM
HENAN JINHE INDUSTRY CO.,LTD , https://www.hncarbonblack.com