A hoist is a device used for lifting or lowering a load by means of a drum or lift-wheel around which rope or Chain wraps. It may be manually operated, electrically or pneumatically driven and may use chain, fiber or Wire Rope as its lifting medium.
The basic hoist has two important characteristics to define it: Lifting medium and power type. The lifting medium is either wire rope, wrapped around a drum, or load-chain, raised by a pulley with a special profile to engage the chain. The power can be provided by different means. Common means are hydraulics, electrical and air driven motors. Both the wire rope hoist and chain hoist have been in common use since the 1800s, however mass production of an Electric Hoist did not start until the early 1900s and was first adapted by Germany. A hoist can be built as one integral-package unit, designed for cost-effective purchasing and moderate use, or it can be built as a built-up custom unit, designed for durability and performance. The built-up hoist will be much more expensive, but will also be easier to repair and more durable. Package units were once regarded as being designed for light to moderate usage, but since the 60s this has changed. Built-up units are designed for heavy to severe service, but over the years that market has decreased in size since the advent of the more durable packaged hoist. A machine shop or fabricating shop will use an integral-package hoist, while a Steel Mill or NASA would use a built-up unit to meet durability, performance, and repairability requirements. NASA has also seen a change in the use of package hoists. The NASA Astronaut training pool, for example, utilizes cranes with packaged hoists.
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According to reports, the climate in Shanxi Province is particularly suitable for pharmaceutical production, and the climate is cool and dry. It is the best place for the fermentation of raw materials in China. Among them, Datong’s chemical and pharmaceutical industry has a long history and a solid foundation. The production of clavulanate potassium accounts for 70% of the country’s total output. The output of oxytetracycline ranks second in the country, and penicillin raw material medicine accounts for one-third of the country’s total. . Coupled with Datong's abundant coal power resources, Shanxi Province will use Datong as a base to build a "medicine capital" for Chinese raw materials.
In addition, Shanxi Province is a large province of natural medicine with a total of 1,116 Chinese herbal medicines. Among them, more than 30 species such as Astragalus, Codonopsis, habitat, Bupleurum, Forsythia, etc., are national authentic herbs. At present, there are 123 pharmaceutical production enterprises in Shanxi Province and more than 6,370 pharmaceutical circulation enterprises. All of them have passed GMP and GSP certification, and there are nearly 30 kinds of fist products such as Dafeng Pill, Guilingji, and Dingkun Dan, relying on these advantages, Shanxi Province. In the next five years, five large-scale and large-scale pharmaceutical industrial clusters will be established.
With its unique advantages in resources, geography, climate and traditional brands, Shanxi Province will build five pharmaceutical industry clusters in Datong, Taiyuan, Jinzhong, Yuncheng and Jindongnan in the next five years. The scale of the industry reached the national average at the end of the “Eleventh Five-Year Plan†period. This is the reporter recently learned from the Shanxi Bureau of Investigation of the National Bureau of Statistics.