Design characteristics of plug flow pneumatic conveying
? ? ? ?The method of pushing materials forward through static pressure between material plugs is plug flow pneumatic conveying, which achieves low-speed operation and relatively low energy consumption, making it an efficient conveying method. Due to its low energy consumption and conveying speed, its superior performance andThe unique advantages are increasingly valued and widely used by everyone.
? ? ?Plug flow conveyingThe key is how to make the material form a certain length of plug column in the pipeline, and fill the plug column with gas to form static pressure. And the air knife is the key device for material bolt column and static pressure formation.
An air knife is a high-pressure pulse compressed air flow used to cut the material pressed into the pipeline, forming a material plug.
The components of the air knife include:
? ?1. Pressure regulating valve
? ?2. Angle valve
? ?3. Check valve
? ?4. Battery valve
? ?5. Pulse meter
? ? ? For larger diameter pipelines, in order to achieve better air knife effect by evenly distributing the airflow, circular T-shaped fittings are often used to allow the airflow to rush into the conveying pipe within a 360 degree range around the entire circumference of the conveying pipe to cut off the material flow, forming a non coupling connectionThe complete material plug of 'silk connection'. When carrying out plug flow conveying, if the conveying distance is long, the material plug will be damaged due to the loss of conveying pressure. It is necessary to install an air knife device at regular intervals to continuously cut the material flow and pressurize the material between them, in order to ensure the continuous and stable conveying of the material.
? ? ?The pulse interval, pulse width, cutting material length, and pulse gas pressure of the gas knife vary depending on the material.The longer the length of the material plug (the longer the interval between air knife pulses), the lower the energy consumption, but correspondingly, it is also more prone to system blockage. The setting of the slug conveying air knife is the key to its success or failure.A thorough understanding of material characteristics is required for the success of plug flow pneumatic conveying, so it is necessary to conduct more conveying experiments to understand its conveying characteristics and parameters.
? ? ? Before developing a plug flow pneumatic conveying system, a thorough study of the material's characteristics is necessary to ensure the successful operation of the system. Therefore, it is necessary to conduct repeated experiments to find a suitable conveying scheme. The pneumatic conveying system is simple to operate and easy to maintain, but it is designed for multiple fields such as fluid science, aerodynamics, particle science, and mechanics, making it a complex and massive systemShandong Juheng Environmental Protection Equipment Co., LtdWe can provide free on-site design solutions and free machine testing to ensure that the equipment can transport efficiently.