What we need to consider when choosing an industrial vacuum cleaner

Exhaust volume

The solution of exhaust air volume refers to the volume of dust collector equipment that can clean the gas in the enterprise time. The enterprise is cubic meters per hour (m3 / h) or standard cubes per hour (Nm3 / h). It is one of the most critical elements in the design scheme of explosion-proof industrial vacuum cleaners.

When designing an exhaust air volume based design or selecting an explosion-proof industrial vacuum cleaner, it is generally not possible to make the dust removal equipment operate under conditions that exceed the required air volume. Otherwise, the dust removal bag is very easy to block and the service life is reduced.

Application temperature

For the explosion-proof industrial vacuum cleaner, its application temperature lies in two elements, the first is the maximum bearing temperature of the filter material, and the second is that the temperature of the vapor must be around the moisture content.

Because of the many uses of glass fiber filter materials, its maximum application temperature reaches 280 ° C. Temperature reduction measures must be adopted for vapors higher than this temperature, and temperature rise countermeasures must be adopted for vapors less than the moisture content.

The correlation between application temperature and high efficiency of ash removal is not significant. This is different from electrostatic precipitators. For electrostatic precipitators, the temperature change will endanger the high efficiency of ash removal, such as the specific resistance of soot.

Filtration rate

Filtration rate is a key element in the design and selection of explosion-proof industrial vacuum cleaners. It is defined as the rate at which the filtering gas is filtered according to the filtering material, or the exhaust air volume of the filtering material and the total area of the filtering material.

In order to improve the actual effect of ash removal and the ability to work continuously, the bag dust removal equipment is cut into multiple rooms in the design scheme, and each room often has a main valve to control whether the room is in a filtering condition or a stopping condition.

Work stress damage

The working pressure damage of the bag-type dust collector refers to the pressure of the gas from the inlet of the dust removal equipment to the inlet and outlet, or the friction resistance. The pressure damage of bag ash removal lies in the following three elements:

Damage to the working pressure of machinery and equipment.

Damage to the working pressure of the filter material. Related to the characteristics of the filter material (such as porosity, etc.).

Damage to the working pressure of the soot layer deposited on the filter material.

Channel dust concentration value

For explosion-proof industrial vacuum cleaners, the channel smoke concentration value will immediately endanger the following elements:

Damage to dust bag and case. Under the condition that the smoke and dust have strong cavitation, the wear rate can be considered to be proportional to the concentration of smoke and dust.

Dust collection is necessary. Dust collection means that the first-level dust remover equipment is upgraded before the dust removal equipment inlet, also known as front dust removal.

Ash conveying capacity of ash conveying equipment. The ash conveying capacity of the ash conveying equipment should be based on the discharge of all the received soot. The amount of soot is equivalent to the value of the channel soot concentration multiplied by the amount of exhaust air.