Installation method and process of dust removal fabric air duct ventilation duct

Ventilation pipe manufacturers usually use the following four methods for anti-wear measures of dust removal fabric air duct ventilation pipes: (1) wear parts such as irrigation layer protective layer, wear-resistant castables (such as pipe sections, increase pipe winding). (2) Lay high-chromium cast iron plates on the pipes that are easy to wear. (3) Use steel plates as fabrics in pipes that are prone to wear. (4) The castable directly passes through the inner wall of the pipeline. The installation sequence of the dust-removing fabric duct ventilation duct is as follows: (1) The centerline and height of the duct support and pillar foundation. (2) Retest pillars and platforms according to plan. (3) Alignment and fixation of pipe supports. (4) Assemble and connect pipes on the ground. (5) Wear-resistant pouring device for pipeline construction or high-chromium cast iron lining plate. (6) Pipe assemblies and their accessories, components, hoisting, placing, leveling, straightening, connecting and fixing. (7) Pipe coating and insulation. (8) Blow pipe test. The main points of the dust-removing fabric air duct ventilation duct are: according to the capacity of the lifting equipment and the height of the pipeline, determine the assembly unit of the pipeline; (2) the pipeline interface should be kept on the straight line of the pipeline, not at the bend and reducer. . (3) When the pipeline is at the upper airway interface, temporary scaffolding and operation channels should be set up. (4) Very mild high temperature wear-resistant castables, stirring and pouring, in strict accordance with product proportions and preparation planning and technical documents. The casting method usually uses a pressure grouting pump to press the castable into the middle layer of the pipe. (5) Spray the wear-resistant castable directly on the inner wall of the pipeline. Usually, the anchor rod or the inner wall of the tile shell should be welded in the pipeline to fix the castable. (6) After the pipeline is completed, clean it with compressed air, then start the fan to detect the leakage under negative pressure. Mainly used for welding joints and flanges, checking ears, hands, and smoke for air leakage. Find bugs and fix them in a timely manner. All experiments pass.

At the same time, as the recent research of JVTIA shows, the benefits of improved productivity and firm performance can make implementing basic management practices worth it.

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