Design of pneumatic conveying system
? ? in designPneumatic conveying systemWhen considering, there are many factors to consider, such as material characteristics, conveying capacity, conveying distance, installation location, etc. Below, Juheng's editor will divide them into 9 categories for detailed explanation.
1. The physical and chemical properties of materials mainly include product name, average particle size and particle size distribution, particle shape and surface flowability, adhesion and cohesiveness, bulk density, density, stacking angle and friction angle, moisture content (mass fraction of water), moisture and deliquescence, hardness and grindability, fragmentation and allowable degree of damage, corrosiveness, electrostatic effect, explosive toxicity, etc. These factors have important practical significance for determining the appropriate device structure, selecting the type of feeding device, component size and material, and selecting the conveying wind speed.
2. The conveying capacity should be based on the annual throughput of the port berth or workshop, the arrival imbalance coefficient, the total day and night conveying capacity and operation time, the maximum and average conveying capacity per hour, etc., in order to determine the required number of pneumatic conveying devices and calculate the production area. For devices that require three shifts per day, attention should be paid to the reliability of component structures and the selection of safety devices.
3. The specific situation of the starting and ending points of the transportation should be understood, including the mechanical connection, feeding and transportation situation before and after the device, ship type information, hatch size, and rear storage capacity.
4. The situation of the installation site should be understood, including the bearing capacity of the port terminal, the layout of railway lines, tides, water level differences, as well as hydrological and meteorological data related to rainy days, typhoons, temperature changes, etc. Understand the layout of factory process equipment and its floor plan design. For devices installed outdoors, consideration should be given to using rainproof and corrosion-resistant structures.
5. According to the requirements of the process flow, the transportation distance and pipeline layout should be understood, including the required horizontal and vertical conveying length of the equipment, the number of bends, and the turning angle. Understand the overhead height and overall layout requirements of the device based on the situation of other equipment. When making the overall layout, attention should be paid to minimizing the conveying length and number of bends as much as possible while meeting the process requirements. In addition, attention should be paid to not obstructing other equipment and on-site traffic, and making it easy to carry out maintenance, component replacement, and other operations.
6. The main conditions for device operation management include understanding automatic control, remote control, and interlocking, as well as device repair and maintenance requirements. Double large equipment and equipment with long operation time and continuous feeding must have safety interlocking devices for the front and rear connecting machinery.
7. The main focus of the power supply is to understand the local power supply method and voltage situation.
8. To understand the various mechanical and electrical components and related parts required for the device, existing standard products should be prioritized while ensuring performance requirements and quality conditions, and the number of non-standard component designs and manufacturing should be minimized as much as possible.
9. Other special conditions and requirements mainly include understanding the requirements for noise and dust treatment, the impact of high temperature and severe cold, such as situations where the temperature may approach the dew point. To prevent the impact of condensed water droplets on the bag filter, insulation or heating measures should be taken. In places where wet filters are needed, the water source situation and sewage treatment methods should be understood.
? ? Although the pneumatic conveying system has a simple structure and is easy to operate, its design is quite complex, and there are many factors to consider according to the production environment. Therefore, professional manufacturers are needed to customize it,Shandong Juheng Environmental Protection Equipment Co., LtdWe have been deeply involved in the pneumatic conveying industry for many years. If you need pneumatic conveying equipment, please feel free to contact us.