Dust Explosion-Proof Design
This section introduces the dust explosion-proof design in single-case sack depalletizing.
At the depalletizing site, a certain level of dust is present. When the dust concentration reaches a critical level (lower limit: 20-60 mg/m³, upper limit: 2–6 kg/m³) and encounters a heat source or open flame, a rapid chemical reaction may occur, releasing a large amount of heat and leading to a dust explosion.
Dust explosions are highly destructive. Therefore, in high-concentration dust environments, it is generally necessary to add a protective cover for the camera.
The design requirements for the camera protective cover are as follows.
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Shell: Welded using Q235 steel plates with a thickness of 10 mm–20 mm.
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Bottom Material: To meet the imaging requirements of the camera, the bottom of the protective cover should be made of transparent material, generally 8 mm thick tempered glass is recommended.
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Cable Entry Holes: Special treatment should be applied to the cable entry and exit of the protective cover, as shown in the figure below.
