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How to remove dust from rectangular steel pipe?

time2018/03/17

1. During the cutting process, a large amount of metal vapor, ozone and nitrogen oxide dust will be generated, which will seriously pollute the surrounding environment. The key to solving the smoke problem is how to inhale all the dust into the dust removal equipment so as to prevent air pollution.
2. The inlet must draw the more smoke inside the rectangular steel pipe into the pipe to achieve the effect. A baffle is added at the position after the plasma cutting point to retain the smoke inside the steel pipe. After a period of time, the smoke can be completely sucked off. clean.
3. For the diameter of less than 900mm, the small diameter of the pipe can not emerge from the direction of the outlet pipe, and there is no need to install the internal baffle. However, there must be an external baffle that blocks the entry of cold air at the suction inlet of the mold smoke.
4. Suction outside the entrance The cold air enters the suction inlet from the outside of the machine space and the air volume is large, so that the total amount of smoke and cold air in the rectangular steel pipe is larger than the effective air volume sucked by the dust collector, so that the complete absorption of cutting dust becomes impossible to complete.
Rectangular steel pipe
5. Install the soot baffle on the accompanying trolley inside the rectangular steel pipe and place it at the cutting point of the plasma gun approximately 600mm. After the rectangular steel pipe is cut off, it will stop to absorb all the smoke and dust. Note that the smoke baffle must be accurately positioned in the cut off position. In addition, in order to match the accompanying cart supporting the soot baffle with the rotation of the steel tube, the angle of the running wheel of the accompanying trolley must be kept consistent with the angle of the inner roller.
6. The amount of air inhaled by the dust collector is greater than the total amount of smoke generated by the cutting and the internal air of the pipeline. A certain amount of negative pressure chamber should be formed inside the rectangular steel pipe, and the outside air should not be allowed to enter the steel pipe in a large amount in order to effectively Dust is sucked into the dust collector.
7. The torch nozzle blows out air at the same time in opposite directions when cutting, so that fumes will emerge from the two ends of the rectangular steel pipe, and the suction port installed in one direction of the steel pipe is very difficult to recover the smoke dust.