• Categories:News Center
• Time of issue:2022-05-06 10:28

(Summary description)1. Overview of pneumatic conveying: 1 Promote high-pressure, high-concentration, low-speed pressure feeding systems It has a 40-year history of using low-grade high-pressure, high-concentration, low-speed pneumatic conveying (dense phase conveying) after mixing foreign materials. This conveying method not only solves the problem of classification, but also solves the problem of accumulation and pollution. incomparable. Moreover, pneumatic conveying has obvious advantages in dust control, conveying distance, and flexibility of conveying pipelines. It is the future development trend to promote high-density plug flow pneumatic conveying technology.   2 System automation and intelligent development Develop an intelligent automatic information control system for pneumatic conveying, realize real-time monitoring and remote data transmission of the system, realize dynamic monitoring and data sharing functions, and ensure the efficient operation of the system; configure an explosion-proof automatic monitoring system and a static elimination device to ensure the safe operation of the system. 3 Develop safe and clean pneumatic conveying devices 3.1 The most important thing to prevent the conveying material from remaining in the pipe section and to avoid cross-contamination is to control the wind speed in the horizontal pipe section. Insulation treatment should be carried out for material conveying pipes with strong adhesion and hygroscopicity. In addition, the horizontal pipe section should be considered cleanable. A device for measuring the parameters of the air network should be installed in the appropriate position of the riser, and the energy can be recycled. 3.2 Most of the unloaders used for pneumatic conveying are centrifugal down-rotating unloaders: Correctly design the size and structure of the unloader; choose a matching air sealer with suitable output, and the surface of the impeller of the air sealer should be smooth and clean to avoid material adhesion. , to ensure safety and cleanliness; choose the appropriate discharger inlet wind speed to ensure the highest discharge efficiency. 3.3 In the pneumatic conveying system, dust will inevitably be generated. The long-term dust-containing work of the system will cause a vicious circle, which will affect the work of the main engine. At the same time, the system gas emission must also meet the requirements of environmental protection and labor protection. Therefore, the dust removal of the pneumatic conveying system is a An indispensable part of perfecting the pneumatic conveying system. Controlled by differential pressure or timer, sufficient filter area and suitable compressed air supply system are also necessary measures to ensure the normal efficiency of the pulse dust collector. In the structural design, the new type of anti-adhesion filter material is used, so that the dust of each batch of materials can be effectively removed after the batch of materials is transported, and the dust can be recycled.   2. Disadvantages of pneumatic conveying Although pneumatic conveying can solve many practical problems, the specific solutions are different for each company. Targeted solutions should be provided according to the specific process requirements of customers, site conditions and material characteristics. Many aspects need to be considered, including raw material unloading. , storage, transportation, mixing, screening, removal of foreign matter, drying, cooling, metering, dust removal, etc., and the focus of each industry is different, you must consider many aspects in order to have a suitable pneumatic conveying, regardless of positive pressure conveying. , Negative pressure suction, delivery tank dense phase, rotary valve dense phase conveying are just one way of conveying, in practical application, other related factors must be considered before choosing. E.g: Food industry: The most important consideration is the issue of cleanliness (preventing microorganisms), followed by the problem of broken rate and energy saving Chemical industry: safety (anti-explosion) is the most important consideration, followed by stability, wear, and color change Lithium battery industry: the most important consideration is accuracy (formulation management), followed by stability problems, residues, and dust removal problems Coating industry: the most important consideration is the bridging (material flow) problem, followed by the ability problem and wear problem' To sum up, according to the different needs of users, we can adopt personalized design, customized production, crush and convey design according to your different materials, and propose professional solutions for you!