A kind of anti-adhesive method of regenerative drying drum

Abstract

The invention relates to an anti-sticking method for regenerative drying drums, which comprises a powder sliding pipe connected to the recovered powder chute of the lower box of the bag filter, and the other end of the powder sliding pipe is connected with a powder silo, and the powder silo The outlet of the powder bin is connected with an adjustment mechanism, the outlet end of the powder bin is connected with a three-way connector, the right end of the three-way connector is connected with a Roots blower, and the left end of the three-way connector is connected with a spray gun through a powder spraying pipe. The spray gun is located in the feeding end of the drying drum, and the spray gun extends into the drying drum from the feeding end of the drying drum, and sprays powder along the direction of the material flow; the structure of the invention is simple, and on the one hand, it can realize the anti-sticking of the regenerative drying drum effect; on the other hand, coating a layer of dust particles on the surface of the asphalt mixture can also reduce the secondary aging phenomenon of the recycled asphalt mixture during the heating process; moreover, the recycled powder can be fully utilized to reduce the project cost; finally, this The method provided by the patent is easy to implement, low in production cost, and convenient in maintenance.

Description

technical field [0001] The invention relates to the technical field of drying drums, in particular to an anti-sticking method for regenerated drying drums. Background technique [0002] As more and more highways in the country enter the overhaul stage, a large amount of waste asphalt mixture will be produced. If these waste and old asphalt mixture can be recycled in large quantities, it will bring very considerable economic and social benefits; and my country's road construction More than 98% of the asphalt mixing equipment used are forced batch mixing equipment. [0003] On the basis of intermittent mixing plants, asphalt plant mixing heat recycling equipment can avoid repeated investment, reduce procurement costs, small investment, low risk, and quick results. Therefore, asphalt plant mixing heat recycling equipment is more and more recognized and demanded by the market. , and the drying drum is a key component of the factory mixing heat recycling equipment. If the recycle...

AI Technical Summary

Problems solved by technology

[0003] On the basis of intermittent mixing plants, asphalt plant mixing heat recycling equipment can avoid repeated investment, reduce procurement costs, small investment, low risk, and quick results. Therefore, asphalt plant mixing heat recycling equipment is more and more recognized and demanded by the market. , and the drying drum is a key component of the factory mixing heat recycling equipment. If the recycled asphalt mixture is dried and heated in the drying drum, the drum is seriously sticky, which will greatly reduce the drying efficiency and directly affect the equipment. The output and performance of use, to this end, provide a regenerative drying drum anti-sticking method, aimed at overcoming the above shortcomings

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