At present, some companies are not very aware of dust explosion risk prevention, the main responsibility is not fulfilled, employees lack a basic understanding of dust explosion hazard characteristics and dust explosion protection methods, and there are misunderstandings. The use of Professional explosion-proof vacuum cleaner is also irresponsible. Do not ask.

There are potential safety hazards in structural design, equipment layout, and process design. For example, in a multi-storey building without a frame structure, or in a crowded place, such as residential areas, staff dormitories, conference rooms, etc., the safety distance is insufficient; there is no fire door between floors; the material warehouse is located indoors; the material is broken (grinding) ) The equipment for removing iron powder and other impurities was not set up in accordance with the specifications.

The design of professional Explosion-proof vacuum cleaner is not standardized. Combustible dust, flammable gas and other media share a set of explosion-proof systems, and the explosion-proof systems of different fire compartments are connected to each other; unreasonably designed suction hoods will cause serious dust deposition; insufficient explosion-proofing on the pipeline and inadequate explosion-proof measures; Take explosion protection measures; use part of the production workshop building as an explosion-proof room, or build an explosion-proof shelter with a brick-concrete structure; the explosion-proof shelter system adopts positive pressure soot blowing, and no reliable measures are taken to prevent dust from ignition sources; no Explosion-proof is installed The device prevents the explosion from spreading indoors.

In addition, there are also problems such as inadequate wiring, incorrect wiring methods, failure to take wiring measures, and installation of exhaust outlets indoors; no live equipment and irregular wiring in places with dust explosion hazards; no leakage prevention jumpers, grounding, etc. problem.

Some companies have insufficient staffing for front-line supervisory personnel, and lack a professional technical service team that truly masters the knowledge of dust and virus prevention. Some regulatory authorities have little knowledge of the basic situation of dust explosion-related enterprises, and no major hidden dangers have been discovered.

It is impossible to find the corresponding standard basis for determining some major hidden dangers. Due to the lack of standard clauses for implementing the rules, the implementation effect is not good.

For dust explosion conditions, as long as one or more of the five conditions are excluded, the occurrence of dust explosion accidents can be avoided. Therefore, the prevention of dust explosion accidents can start from the following aspects.

The smoke explosion limit value is too high, and it is usually difficult to meet the requirements of the explosion limit value. Therefore, in actual production, the risk of mixed explosion of smoke and air is used as the criterion. When the smoke and dust concentration reaches the smoke explosion limit value, there is a danger of explosion . Professional explosion-proof vacuum cleaner equipment should be purchased in time to prevent it in advance!

If you want buy fume extractor, please contact with Dongguan Pure-Air Tech Co.,ltd, E-mail: sales@pure-airtech.com.