Chemical machinery and equipment
Chemical machinery and equipment is a general term for machines and equipment used in chemical industry production. In order to process chemical raw materials into finished products of certain specifications in chemical production, it is often necessary to go through a series of chemical processes such as raw material pretreatment, chemical reaction and separation and refining of reaction products, and the machinery used to achieve these processes is often classified as chemical machinery.
What are chemical equipment
① Chemical machinery. Refers to the main parts of the movement of machinery, such as a variety of filters, crushers, centrifuges, rotary kilns, mixers, rotary dryers and fluid conveying machinery.
② Chemical equipment. Refers to the main parts are static or have little movement of machinery, such as various containers (tanks, tanks, reactors, etc.), ordinary kilns, towers, reactors, heat exchangers, ordinary dryers, evaporators, reactors, electrolyzers, crystallization equipment, mass transfer equipment, adsorption equipment, fluidization equipment, ordinary separation equipment and ion exchange equipment. The division of chemical machinery is not strict, some fluid conveying machinery (such as pumps, fans and compressors, etc.) in the chemical industry is often called chemical machinery, but at the same time they are general machinery in various industrial production. The design and manufacture of modern chemical machinery, in addition to relying on the development of mechanical engineering and material engineering, is also closely related to the development of chemical technology and chemical engineering. Chemical machinery mainly studies the corrosion resistance of machinery, as well as electrochemistry and other ranges.
Equipment characteristics
Chemical machinery is an essential production equipment in chemical factories, chemical machinery is different from other machinery significant characteristics are:
(1) There are various forms of energy involved, and the conversion process between them is also more complex, the most common forms of energy are thermal energy, mechanical energy, chemical energy, electromagnetic energy, etc.;
(2) the nature of the working medium is changeable, such as its composition, composition and phase change;
(3) The operating conditions are very wide, and the operating parameters are special, such as high and low pressure, high and low speed, high and low temperature, high and low viscosity, etc.;
(4) It has the characteristics of excellent adaptation to different chemical properties. Thus constitutes the chemical machinery equipment special structure of the ever-changing. Generally can be divided into chemical equipment and chemical machinery two categories. Chemical equipment includes various containers such as heat exchangers, towers, reactors, etc. Its main acting parts are generally stationary. Or only very little exercise. Chemical machinery includes centrifuges, filters, crushers, rotary kilns and rotary dryers. Its main components are often moving, such as special pumps, compressors, transport aircraft and so on. All have the characteristics of chemical machinery.