Which is better root blower or ring blower?

The choice between a root blower and a ring blower depends on the specific application and the requirements of the system. Both types of blowers have advantages and disadvantages.

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A root blower, also known as a positive displacement blower, uses two rotors that rotate in opposite directions to trap and move air through the blower. Root blowers are known for their high pressure capabilities and are often used in applications such as pneumatic conveying, wastewater treatment, and aeration.

On the other hand, a ring blower, also known as a regenerative blower, uses a single impeller with multiple blades to create a vortex that moves air through the blower. Ring blowers are known for their high flow rate capabilities and are often used in applications such as vacuum lifting, packaging, and air knives.

In general, root blowers are better suited for applications that require high pressure and low flow rates, while ring blowers are better suited for applications that require high flow rates and low to medium pressure. However, there may be exceptions to this general rule, and it&#;s important to consult with an expert to determine which blower is best for your specific application.

The pneumatic conveying system using the Roots blower as a gas source can transport not only powdery, granular and fibrous materials such as phosphate rock, coal powder, cement, carbon black, polyethylene, polypropylene, animals, cotton, etc. but also small pieces of material such as coal, rock, etc.

Pneumatic conveying system has a wide Applications, mainly because it has the following advantages:

(1) The material is transported in a closed pipeline, which is not easy to produce dust pollution to the environment. At the same time, the environment will not cause pollution to the materials or cause it to be damp, etc., and the quality of the transported materials can be guaranteed.

(2) The transmission line can be flexibly arranged, the floor space is small, and the space can be fully utilized. For complex terrain and in the old factory renovation, the transportation pipeline layout has great adaptability and flexibility.

(3) During material transportation, various production processes such as cooling, heating, and drying of materials can be completed.

(4) The mechanical transmission parts are few, the structure is simple, the operation and management are convenient, the wearing parts are less, and the maintenance cost is low.

(5) It can do quantitative transportation, which is convenient for production scheduling and management.

(6) It can be transported over long distances or concentrated.

(7) Chemically unstable materials can be transported with inert gas.

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There are also some shortcomings in pneumatic conveying system. The main disadvantages are:

(1) Power consumption is large.

(2) The components in the conveying pipeline that are in contact with the airflow and the material will be worn out, especially when conveying materials with high abrasiveness.

(3) Some materials that cannot be transported:

Brittle materials, which can cause mass degradation due to crushing or fail to pass the product;

Viscous materials or materials that are easy to absorb moisture and agglomerate are not suitable for use because they are easily blocked during transportation;

Grinding materials,which can cause the damage of the line easily;

The easily oxidizable material should be transported with inert gas;

Materials size more than 50mm and high density.

Is it economical to use pneumatic conveying?

Although it has the disadvantage of high power consumption, the operators and wearing parts are less than other modes of transportation, so the total maintenance cost and operating cost per ton may not be higher than other modes of transportation. In addition, due to the large amount of loading and unloading, if the loading and unloading time can be shortened, the utilization rate of vehicles and vessels can be improved, and the problem of higher power costs can be compensated for from the overall benefit. For flour, granulated sugar, drugs or other foods, if other transportation methods are used, special treatment must be carried out in terms of hygienic protection, while pneumatic conveying is not required. Although the cost of pneumatic power transmission is relatively expensive, the overall operating cost is not expensive.

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