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Home > News > Advantages and disadvantages of pneumatic conveying system

Advantages and disadvantages of pneumatic conveying system

Author£ºniasi Date£º2013-8-23 11:43:36 Source:en.dgniasi.cn

Information of the pneumatic conveying system


The pneumatic conveying system is a kind of comprehensive technology. It applies in the fluid mechanics, materials science, manufacturing technology, automation technology ect.. It belongs to the high transmission efficiency, little cover area, economic and non-pollution high-tech projects. Along with our country's fast  economy development. The production is also growing in all walks of life. Some industries such as the power plants, chemical plants, cement plants, pharmaceutical, food processing plants, etc. , The powder material in transportation production engineering of environment pollution is becoming more and more widely awared.The pneumatic conveying technology has been gradually applied. The pneumatic conveying is an important link of cleaning production, it is a kind of technological processing using the sealing pipeline instead of the traditional mechanical conveying material and a kind of modern logistics for bulk conveying system. With its strong advantages,it will replace the traditional mechanical transmission.

Common materials suitable for pneumatic conveying

There are many kinds of powder grain for the pneumatic conveying. Each type of material has a great influence on the the suitability and efficiency of the pneumatic conveying device. Before the selecting the conveyor, you should test the material performance. Now common pneumatic conveying materials are as follows: wheat, flour ,sauce powder, bean, fish powder, cocoa, salt, grains, soybean,  dry yeast, cottonseed, cellulose, starch, grains, sugar, tobacco, talcum powder,  dolomite, Magnesium, limestone, silica, white kaolin, fluorite powder, bentonite clay,  iron boron, alumina clay, feldspar powder, detergent chemical fertilize,r urea grain of glauber's salt. zinc oxide hydrated lime sodium nitrate sodium carbonate silicon aluminum hydroxide sodium chlorate sodium phosphate sodium bicarbonate (acid) with gypsum powder zinc powder and nickel powder carbon black iron oxide powder polypropylene PTA PET ABS SBS PVC nylon slicing coal fly ash carbon 

> 3. The installation is simple without reserving installation holes, the scene combination is convenient, especially suitable for changing the project.

Disadvantages£º 
1.Higher price
2.The number of module should not be more than eight tablets
Water source hot pump
Advantages£º  
1. Saving energy.Running  in winter, it can recycle the heat
2. No cooling room, no ventilation pipe and circulating pipe. There is no heat preservation and it will reduce cost.
3. Easy to measure
4. Convenient installation, low maintenance costs 
5.Flexible Application and convenient adjustment.
Disadvantages£º  
1.In the excessive season, you can't make full use of fresh air
2.The unit has bigger noise
3.The unit are mostly hidden installed in the ceiling, bringing some certain difficulties to the maintenance
Lithium bromide absorption chiller (steam, hot water and direct burning type)
Advantages£º  
1. Little movement part, low failure rate, smooth movement, small vibration, low noise 
2. Simple processing, easy to operate. It can achieve 10% ~ 100% stepless adjustment 
3. Non-toxic of the  lithium bromide liquid,  no damage to the ozone layer 
4. Usage of the waste heat and other low grade heat 
5. Low operating cost, good safety
6. Powered by the heat energy, less power consumption
Disadvantages£º  
1.The service life is shorter than the compression type
2. Electricity saving but no energy saving, big steam consumption and low thermal efficiency
3. The unit running in the vacuum for a long time, the external  air can easily invade in,.If the air invades in,  it will cause the cooling capacity decreasing.Therefore,  it should be tightly sealed, which will bring inconvenience to the manufacture and the usage.
4. The thermal load  is bigger than the compression type, higher demand for the cooling water
5. The lithium bromide liquid has strong corrosive on the carbon steel, which affects the service life of the unit and performance;
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