English
简体中文1、Overview.
Market response shows that the chemical industry expects the drying equipment manufacturing industry to adjust the product structure according to the requirements of high quality, low energy consumption and environmental protection, further strengthen the basic research and solidify the foundation of application research and development. In terms of technology, strengthen the research on automation, testing, manufacturing process and material material appearance design, etc.
In the application of research and development, we should focus on international exchanges and cooperation, but also pay attention to the protection of intellectual property rights; we should focus on the development of new technologies, new applications, but also focus on traditional processes and traditional applications of innovation and innovation.
2, air rotor dehumidifier classification.
Air dehumidifier can be classified according to the operating process, operating pressure, heating mode wet material movement mode or structure and other different features.
(1) according to the operating process, air dehumidifier is divided into intermittent (batch operation) and continuous type two categories.
(2) according to the operating pressure, air dehumidifier is divided into atmospheric air dehumidifier and vacuum air dehumidifier two categories. Operation under vacuum can reduce the space of the wet partial pressure of vapor and accelerate the drying process, and can reduce the wet boiling point and material drying temperature, steam is not easy to leak.
(3) According to the heating method, the air dehumidifier is divided into convection, conduction, radiation, dielectric and other types.
Convective air dehumidifier, also known as direct air dehumidifier, is the use of hot drying medium and wet materials in direct contact with convection to transfer heat, and the generated steam away.
Conduction type air dehumidifier, also known as indirect air dehumidifier, it uses conduction method by heat source through the metal wall to transfer heat to the wet material, the generation of wet points of steam available to reduce the pressure of suction, through a small amount of purge gas or in a separate set of low-temperature condenser surface condensation and other methods to remove. This type of air dehumidifier does not use drying medium, high thermal efficiency, the product is not contaminated, but the drying capacity is limited by the heat transfer area of the metal wall, the structure is also more complex, often operating under vacuum. Radiation type air dehumidifier is the use of a variety of radiators emitting a certain wavelength range of electromagnetic waves, the surface of wet materials selectively absorbed and transformed into heat for drying.
Dielectric air dehumidifier is the use of high-frequency electric field effect, so that the internal thermal effect of wet materials to dry.
(4) According to the movement of wet materials, air dehumidifier can be divided into fixed bed type, stirring type, spray type and combined type.
(5) according to the structure, air dehumidifier can be divided into compartment air dehumidifier, conveyor air dehumidifier, roller air dehumidifier, vertical air dehumidifier, mechanical stirring air dehumidifier, rotary air dehumidifier, fluidized bed air dehumidifier, airflow air dehumidifier, vibrating air dehumidifier, spray air dehumidifier, and combined air dehumidifier and many others.
3, the future development of air dehumidifiers.
The future development of air dehumidifiers will be in the in-depth study of dehumidification mechanism and material drying characteristics, mastering the optimal operating conditions for different materials, the development and improvement of air dehumidifiers.
In addition, large-scale, high strength, high economy, as well as improve the adaptability of raw materials and product quality, is the basic trend in the development of air dehumidifiers.
At the same time further research and development of new high-efficiency and adapt to the special requirements of the air dehumidifier, such as refrigerated dehumidifiers, rotary dehumidifiers and air freezer dehumidifiers.
The development of air dehumidifiers should also pay attention to energy saving and comprehensive use of energy, such as the use of a variety of joint heating methods, the transplantation of heat pumps and heat pipe technology, the development of solar air dehumidifiers.
Also develop the air dehumidifier automatic control technology to ensure the realization of optimal operating conditions.
In addition, with the importance of human beings to environmental protection, improve the air dehumidifier environmental protection measures to reduce dust and exhaust gas emissions, etc., will also be the direction of in-depth research.
