I Thought I Saw a Ufo
When it comes to the blast cleaning equipment, it is a kind of dust collection equipment that can separate dusts from exhaust gas. Therefore, it is widely applied to boiler as well as many other types of industrial productions. Then, the following will give comprehensive introduction on the so-called dust catcher.
Generally speaking, the dust catcher can be divided into several types according to different standards. According to the operating principle, it can be divided into five types, which are mechanical-force washing-type, filtering-type, electrostatic and magnetic dust catchers. Among them, the mechanical-force dust catcher includes gravitational precipitator, inertia dust catcher and centrifugal dust collecter, while the washing type contains such subtypes as water-bath, Venturi tube and water-film dust collector. Meanwhile, the filtering type has bag-type dust remover and stratum granulosum. Besides, there are some other types, such as cyclone dust collector, rotation anti blow bag filter or mechanical vibrating dust collector and so on.
Then, here comes another question. What is the selection criterion of dust catcher? Here are some tips that should be taken into consideration.
Air quantity comes very first. The air quantity means the purified air volume that can be cleaned within the unit interval by dust collection equipment, which can be expressed into m3/h or Nm3/h. According to such a factor, the design and type of Shot Blasting Machine
can be decided. The air quantity must be set in accordance with the practical condition. If the quantity is too small, it will cause the blocked filter bag and shorten its service life. However, the quantity also can't be too big, or it will increase the equipment investment cost.
Operating temperature is the second aspect that should be born in mind. Usually, the temperature is decided by two elements. One is maximum bearing temperature of filter material. The other one is that the air temperature must be above dew-point temperature. The temperature change has direct effect on the specific resistance of dusts as well as overall efficiency of separation.
Dust concentration also needs to be paid special attention, which is decided by the craft. Take the bag filter for example. Its dust concentration has direct relationship with pressure loss, dust removal period, filter bag attrition, dust discharge capacity and operation mode.
With the rapid development is nowadays industrial area, the Blast Wheels
can be seen in many fields, such as carpentry workshop, paint shop, polishing factory, batter manufacture workshop or chemical engineering plant and so on.
