What is the classification of central feeding system?

Central feeding system is an automatic production line for conveying, mixing and proportioning of different types of materials. In order to meet different applications in chemical industry, food industry and plastic industry, there are various types of central feeding system. What are the classification of central feeding system?

 

 

 

Central feeding system

 

 

 

Classification according to the density of particles in the transport pipeline:

 

 

 

Dilute phase transport: the solid content is lower than 1-10kg/m3, the operating gas speed is higher (about 18 ~ 30m/s), and the transport interval is basically within 300m. Low transport pressure, no maintenance, no protection.

 

 

 

Dense-phase transport: transport process in which the solid content is 10-30kg/m3 or the solid-gas ratio is greater than 25. Operate at a low air speed and at a high pressure. The delivery interval is over 500m, suitable for long-distance delivery, but this equipment has more valves, pneumatic and electric equipment.

 

 

 

Negative pressure transport: the pressure in the pipeline is lower than the atmospheric pressure, self-suction feed, but must be discharged under the negative pressure, can transport the interval is short. Equipment investment, load is small. According to the working principle, it can be divided into suction type and pressure type:

 

 

 

Suction force transport, is the atmosphere and materials together into the pipeline, with low pressure air flow for transport, so also known as vacuum suction. Its features are:

 

 

 

(1) suitable for transportation from several places to one place;

 

(2) in the negative pressure effect, the material is easy to be inhaled, so at the throat of the material is brief. The hopper can be opened to continuously feed and transport;

 

(3) the material is transported under negative pressure, water is easy to evaporate, so the water is higher than the material, the pressure is easy to transport. The material supplied under the heating condition can be cooled by transportation.

 

 

 

The pneumatic conveying is carried out by pushing the material with the compressed air higher than the atmospheric pressure. Its features are:

 

 

 

Suitable for lax transport from one place to several places. That is, the feeding point is one, and the unloading point can be one or several. Compared with the suction type, the concentration and transport interval can be greatly increased.

 

(2) in the case of positive pressure, the material is easy to discharge from the discharge port, so the structure of the separator, dust collector is simple, generally do not need the lock air device;

 

(3) roots blower or air compressor in the first end of the system, the air purification level requirements are low. At the same time, under the effect of positive pressure, the material is not easy to enter the transport pipe, so the structure of the feeding equipment is complex.

 

 

 

The production conditions of different enterprises vary greatly, the specific type of selection and design is to be based on the enterprise's material type, proportion, throughput, transmission distance, etc., comprehensive customized design, so as to create a suitable central feeding system for enterprises. D masterpiece for the domestic professional material automation manufacturers, can be customized for all industries and fields exclusive central feeding system!