Explosion Protection: Countermeasures against Dust

There are many tips you should you know after you operate Muyang feed machines, and you should know the right means and safety points, then you can avoid unnecessary matters.

1. Common cleaning work
*** Keeping the working site with combustible dust clean is an important condition for safe production.
*** Try not to pile bagged or bulk materials between machines.
*** In order to reduce dust emission to surrounding areas, all conveying devices, cyclone separators and dust collectors should be kept in good condition. Especially, the unsealing phenomena of pipes or top covers should be avoided.
*** In order to reduce dust explosion hazard, dust everywhere must be cleaned out frequently and effectively.
*** Keep all motors free of deposited dust.

2. Frequent inspection and maintenance
*** Regularly Check all V-belts and flat belts for driving conditions, at least once a week, so as to avoid heat generation due to skid.
*** Regularly check the safety feed machine such as speed monitor or the like, at least once a week.
*** Check and clean all the magnetic separators, stoners and sifters regularly, at least once a day.
*** In order to avoid heat generation, it is necessary to regularly check the functions of all main shafts and bearings, at least once a week, and to regularly fill up lubricating oil.

3. Electric apparatus
Regularly check the electric apparatus and articles, and special attention should be paid to the following points:
*** It is forbidden to use any flashlights and other lamps without shielding or explosion-proof glass.
*** It is forbidden to use any lengthened cable or electric furnace.
*** It is necessary to immediately repair or replace the electric apparatus and equipment if any failure occurs.
*** The cables without conduits are not allowed to be installed on the floor.
*** Cut off the power supply of the machine when going off work.
*** An electrician should be assigned to check the insulation of all the lines of electric network according to relevant regulations on heavy current, at least once a year.

4. Smoking and welding
*** Smoking is forbidden, which is applicable to all workers and staff of the enterprise as well as guests, customers, foreigners and drivers visiting the factory.
*** If the tools such as welding feed machinery or soldering lamp (flame soldering lamp) etc. are required for repair or installation, do as best as possible to arrange the work in a special workshop or on a special site.
*** If it is necessary to carry out welding or the like directly in production area or storehouse once in a while, written applications must be submitted to a related supervisor in advance for written approval. The above mentioned operations can be carried out only when special safety measures have been taken, such as laying pieces of water soaked canvas or canvas special for covering on the surrounding area and preparing fire extinguishers. After completion of the operation, the welding site and the surrounding area are to be monitored at least for 10h. The gas cutting sparks are very dangerous, for people can't see where they will fly on earth. They can cross through the narrow clearance of walls and drop downstairs or to the next rooms, or even fly off 10 m away in distance. If the sparks drop in dusts, fire accidents may occur at any time.
*** Welding is prohibited on a running conveyor. If the welding work is necessary, shut down the machine first, and then make a thorough cleaning and isolate both sides of the welding site tightly with materials like mineral wool to avoid connecting with other conveying devices, silos or tanks. If the work is to be done on the chutes or conveying pipes, it is necessary to disassemble them or divert their lower ends and seal them to avoid welding sparks entering the conveying pipes or silos.