Ali grandpa network group consists of second-hand chemical equipment is Hong Kong website platform to handle the sale of chemical equipment mainly including divided into second-hand chemical equipment, chemical equipment, chemical equipment accessories used grain and oil processing equipment, used edible oil processing equipment, used salad oil equipment, used equipment of rice bran oil, used vegetable oil, used leaching equipment, used refining equipment, used oil, used oil mill, second-hand, second-hand extrusion machine, heat conduction oil furnace used filter, centrifuges, etc.
Second-hand chemical equipment is a general term for the recycling of machinery and equipment used in the production of chemical industry. In chemical production, in order to process raw materials into finished products of certain specifications, a series of chemical processes, such as raw material pretreatment, chemical reaction and separation and refinement of reaction products, are often needed to realize the machinery used in these processes. When these equipment need to be updated, they have their residual value, collectively referred to as chemical equipment.
classification
Chemical equipment can generally be divided into two categories:
Chemical machinery. Refers to machinery whose main functional components are moving, such as various filters, crushers, centrifuges, rotary kilns, mixers, rotary dryers and fluid conveying machinery.
Chemical equipment. Refers to the main function parts is stationary or only a small movement of the machine, such as all kinds of containers (tank, pot, kettle, etc.), ordinary kiln, a column, reactor, heat exchanger, the common dryer, evaporator, reactor, electrolytic cell, crystallization equipment, mass transfer and adsorption equipment, fluidization, ordinary separation equipment and ion exchange equipment.
The division of chemical machinery is not strict, some fluid transport machinery (such as pumps, fans and compressors) in the chemical sector is often called chemical machinery, but at the same time they are a variety of industrial production of the general machinery. The design and manufacture of modern chemical equipment is not only dependent on the development of mechanical engineering and material engineering, but also closely related to the development of chemical technology and chemical engineering.
The quality, output and cost of chemical products depend largely on the perfection of chemical equipment, and the characteristics of chemical machinery must be able to adapt to the special conditions such as high temperature, high pressure, high vacuum, ultra-low pressure, inflammable, explosive and strong corrosivity encountered in the chemical process. Modern chemical industry requires chemical machinery: with continuous operation of safety and reliability. (2) Have sufficient mechanical strength under certain operating conditions (such as temperature, pressure, etc.). (3) excellent corrosion resistance. Good sealing. High efficiency and low energy consumption.
