Hot air box edge retaining device

Abstract

The invention relates to a flange device for a hot air chamber. The flange device specifically is used for sealing a hot air chamber; the flange device comprises fixing bases, a connecting bolt, a rotary arm, a compaction board, a connecting rod, a connecting pin and an adjustable sleeve pipe; two sides of the hot air chamber are welded with a fixing base respectively; the fixing base are connected with the rotary arm through the connecting bolt; the front end of the rotary arm is welded to the adjustable sleeve pipe; the connecting rod is fixed in the adjustable sleeve pipe through the connecting pin; the lower end of the connecting rod is welded with the compaction board; and the compaction board is abutted against heat-insulation canvas. According to the invention, the flange device has a simple, compact and reasonable structure; hot airstream in the hot air chamber is prevented from being drained; and production cost is saved.

Description

technical field [0001] The invention relates to a side retaining device for a hot air box, in particular for sealing the hot air box. Background technique [0002] After long-term use of asphalt pavement, defects such as ruts and depressions will inevitably occur. These defects will further accelerate the damage of the road surface and affect driving safety. Therefore, it is necessary to repair the damaged asphalt pavement, and the regenerative train is a new type of mobile rapid pavement regeneration equipment. [0003] First, preheat the defective asphalt pavement. As the asphalt is heated and melted, its bonding force with the aggregate decreases. When the pavement is heated to a certain temperature, that is, the pavement softens, it is then milled by the milling device. At this time, because the softened pavement will not produce too much resistance to the milling operation, the asphalt pavement can be transformed from the original flattened and compacted state to a loo...

AI Technical Summary

Problems solved by technology

Among them, the air pressure is always changed by the change of the heated air pressure. The insulation canvas only relies on its own weight to contact and seal with the asphalt pavement, causing some areas to leak hot air or inhale cold air, resulting in uneven heating.

At the same time, the hot air utilization efficiency of the hot air box is reduced, resulting in an increase in cost and the occurrence of scalds for construction personnel

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