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Basic introduction of vacuum feeder


Vacuum feeder is a kind of equipment that transports powder and granular materials by generating vacuum through vacuum pump. It is widely used in light and heavy industries such as chemical, pharmaceutical, food, agricultural and sideline, and metallurgy. Because the vacuum feeder uses pipelines for airtight transportation, it can avoid the pollution of dust to the environment during the transmission process, and also avoid the pollution of the conveyed materials caused by the external environment. It is the first choice for most powder materials.

However, if the vacuum feeder cannot guarantee the stability when conveying the material, it may cause the material to be unable to complete the conveyance within the specified time, resulting in a decrease in production efficiency, and even in serious cases, the production cannot be carried out. Therefore, the manufacturer must solve the stability problem of the vacuum feeder.

First, inspect the equipment before using the vacuum feeder, including filters that are prone to failure. It is necessary to ensure that the vacuum feeder can be used normally during the working process; secondly, if the vacuum feeder transports unsuitable materials during use, it will also cause the feeder to be unstable. For example, the feeder is not suitable for transportation. Wet and viscous materials; in addition, the vacuum feeder should pay attention to the storage situation when working, and ensure that the storage after transportation is not too much; the vacuum feeder should be maintained on time, so as to ensure the vacuum feeding The normal operation of the machine can also prolong the service life of the equipment.
vacuum conveyor
The vacuum feeder needs to pay attention to:

1. Pay attention to the operation of the feeding machine. For example, there are automatic feeding machines, semi-automatic feeding machines and manual feeding machines. In terms of convenience, of course, fully automatic feeding machines are more convenient. , but in terms of price, the latter two will be more affordable, so you first need to distinguish which type of equipment products you need from this point, which will help you better.

2. It should be noted that when choosing a vacuum feeder, you should also pay attention to its material and workmanship. You must choose a good material and pay attention to a good workmanship. This is also very important. , can be very helpful for everyone and bring you a better service life. You must pay attention to these selection factors, so that you can choose a good feeder, and you can use the effect. , can fully meet their own needs, for example, if there is a feeding machine, the function is very good, but the material is very thin, then the service life is definitely not long, and it will be broken after a long time.

3. It should also be noted that there are some design about the vacuum feeder, as well as some related factors such as maintenance. For example, if the design of the feeder is very simple and the structure is very convenient for normal maintenance and repair , then using it will naturally bring you better effects and help, so that everyone can enjoy a better feeding effect.

The vacuum feeder describes the structure, principle and discharge method of the vacuum conveying system. At the same time, it discusses the matching of the vacuum conveying system and the equipment, as well as how to choose the filter, and makes some technical problems of the vacuum conveying system. discussed. It can be said that the vacuum conveying system combines pneumatic conveying and container conveying to realize the overall process of material conveying automation, cleaning and sealing.

The main advantages and functions of the vacuum feeder:

1. The temperature of the vacuum feeder is relatively wide during operation, so it can work at high or low temperature. Therefore, in the process of feeding materials, its technical advantages are still relatively prominent. In terms of design, it will still be found that the cost performance and technology are relatively prominent, and in terms of its functions, it will still move towards the trend of specialization. Unanimous approval of customers.

2. The materials in the vacuum feeder are more advanced, so there will be no stickiness during the feeding process, so the design of the equipment is relatively anti-stick. In terms of its function, it will still be found in the use of The specialization in the process will continue to become stronger and stronger. It is widely used in many domestic industrial production processes.

3. The conveying capacity of the vacuum feeder is strong and the conveying efficiency is high, which greatly improves the work efficiency in most industrial production processes. There will be more and more functions and advantages when it is used in the industry, and it has been unanimously recognized by customers.

The role of vacuum feeder

1. The main engine and the barrel are designed in separate parts, which makes the operation more convenient and safe;

2. The hopper is made of stainless steel, which is easy to clean;

3. Equipped with an independent filter device to facilitate the removal of dust;

4. In the process of use, when there is a shortage of material or overload, the equipment will automatically alarm;

5. Fully automatic computer control makes the operation more convenient;

6. Equipped with reverse automatic dust removal function.

Working principle: When the compressed air is supplied to the vacuum generator, the vacuum generator will generate negative pressure to form a vacuum air flow, and the material will be sucked into the feeding nozzle to form a material air flow, which will reach the silo of the feeding machine through the feeding pipe. . The filter completely separates the material from the air. When the material fills the silo, the controller will automatically cut off the air source, the vacuum generator will stop working, and the silo door will automatically open, and the material will fall into the hopper of the equipment. At the same time, compressed air automatically cleans the filter through the pulse backflush valve. When the time is up or the material level sensor sends out the feeding signal, the feeding machine will be started automatically.

What does the vacuum feeder press sliding bearing play?

1. The vacuum feeder first briefly introduces the principle of the dynamic pressure sliding bearing. In the dynamic pressure sliding bearing, due to gravity, unbalanced force, etc., the journal is eccentric relative to the housing, resulting in convergence and divergence. In the oil wedge, the pressure rises in the converging oil wedge and the pressure decreases in the diverging oil wedge, thereby generating the bearing capacity.

2. The cavitation phenomenon of the vacuum feeder occurs in the divergent wedge. If calculated according to the continuous liquid model, the oil film pressure is often much lower than the ambient pressure. In fact, when the oil film pressure is slightly lower than the ambient pressure, the dissolved gas in the oil film becomes a bubble mass, which becomes a two-phase flow in the diverging wedge. The two-phase fluid has little elasticity, so the oil film pressure does not decrease further. , basically stable at slightly below atmospheric pressure. Therefore, the oil film pressure is usually regarded as the ambient pressure in the diverging wedge.