Welding concentrated purifier pipeline

1 welding concentrated cleaner pipes. Welding concentrated cleaner pipe should be used in addition to electrostatic steel metal materials, in order to avoid electrostatic accumulation, wind speed can be appropriately increase the pipe at the same time, the air volume to meet the pipe under the condition of normal operation or malfunction of dust air mixture the highest concentration of not more than 50% of the lower explosive limit. 2. In order to prevent the dust deposition inside the duct, combustible dust dust removal pipe section should be round, try to shorten the length of horizontal duct, reduce the number of elbow, pipe should be not installed on the end and pouch, avoid dust accumulation. Horizontal line every 6 m has a clean mouth. Pipe joints using metal fastening components and USES the transitional connection of equal cross section area and pipes. 3. In order to timely control after partial pipe explosion explosion or prevent further development of explosion shock wave leaked, causing dust, produce secondary explosions, aerial pipeline laying, are not allowed to have hidden and layout in the ground, half in the underground building; Every 6 m, pipe length and the branch pipes to exhaust pipe interface centralization exhaust pipe upstream of the 1 m, set the pressure relief area and opening pressure meet the requirements of controlled blasting pressure relief, a radial dedusting branch and the return air duct joint installed automatically and isolation valve; If controlled blasting pressure mouth set in plant buildings, using the pressure tube of length less than 6 m leads to the outside. Welding concentrated cleaner is easy to form a high concentration of dust in the cloud, such as cleaning bag filter bag, blow action is enough to cause high concentration of dust cloud, if there are any ignition source, will be an explosion, and through the pipeline transmission, will endanger adjacent room or connection with the equipment. So filter generally set up on the outside of the workshop building and the roof, the distance at the same time and the factory building external wall is more than 10 m, if distance factory building external wall is less than the prescribed distance, factory building external wall set a blazer with factory building external wall between blast walls or in dust catcher and has enough strength of burning blast walls. If dust collector with continuous ash removal equipment or soot cleaning on a regular basis and its volume is not more than 1500 m2 / h, dust collection bucket ChuChen amount is less than 45 kg of dry type single independent exhaust dust absorption, can be a single layout in workshop in separate room, but the fire resistance of not less than 3 h partition or 1, respectively. 5 h floor with other parts of the space, dust chamber adopts the welded steel material, its strength should be able to afford to collect dust explosion without discharge when the maximum explosion pressure. To prevent dust precipitator internals combustible dust, all set dust shield beam, the place such as a partition, dust-proof plate slope to take less than 70 & deg; Settings. Ash hopper of the slip Angle is greater than 70 & deg; , due to the Angle between the two bucket wall is too small to prevent dust, walking on two adjacent sides welding plate, to eliminate dust deposition.

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