Bucket improve the tail wheel seal

Bucket improve the tail wheel seal - 2020 02 - 23 Bai Jiangong ( Tianjin jinyu promoting environmental protection technology co. , LTD. ) The problems existing in the 3 # company for combined grinding system, cement grinding system using the feeding hopper type hoist for the Great Wall NSW500H & times; Bucket elevator, 40000 to 2004, put into production due to design, the bucket ascend the tail wheel seal frequent ash leakage, affect the normal operation of equipment, environmental pollution, although has taken some measures, such as replacing seal baize, replacing compression spring, etc. , but have not been fundamentally solve the problem, the serious influence of equipment pipe and environmental health. 2 cause analysis based on the analysis summary, found that the tail wheel bucket ascension in the process of running down, tail wheel place with tail shaft seal plate move up and down in the process, compression spring for surface contact, friction, causing compression spring deformation damage and failure in the end. Compression spring expires, sealing plate is loose, produce space between the sealing plate and shell, ash leakage problem, as shown in figure 1. Figure 1 bucket ascend the tail wheel seal after 3 solutions to figure out why before modification, and the corresponding technical transformation, the existing compression spring, in a sealed bucket elevator on both ends of the plate welded on the shell is fixed bolt, spring installation, square steel, square steel front to install two rolling bearing, roller bearing pressure tight seal plate, by adjusting the spring tensioning force on both ends to adjust contact seal plate and shell. Using rolling bearing contact pressure force, eliminates the sealing mechanism of sliding wear, sealing plate and spring from the slider surface contact line contact instead of rolling bearing. Damage to reduce friction, avoid sealing clamp device, solve the problem of the leakage ash pollution environment, improve the stability of the equipment. Implementation process: on both ends of the sealing plate welding bucket elevator shell M16 nut, fixed screw M16 & times; 100 screwed into the nut in screw coat & Phi; 25 mm spring, 40 mm square steel ends play & Phi; 16 mm hole, pressure in the period of spring, and then mount period of spring, with a nut and tighten. Square steel front welding two stents, head installed two rolling bearings, adjusting screw nut, make the seal plate pressure shell, as shown in figure 2. Figure 2 bucket improve the tail wheel seal after modification, after running at ash leakage problem is resolved, as shown in figure 3, to avoid the tail wheel bearing damage caused by ash leakage problem, improve the efficiency of the bucket elevator running, system operation efficiency was improved, compared to the environmental pollution is controlled, at the same time to ensure the service life of the sealing device, life extension 12 months, repair and maintenance costs. Figure 3. Application source transformation: the journal of cement