Process and recycling plant for recycling bituminous materials and novel bitumen material

摘要

The invention relates to a method and a recycling system for recycling bituminous roofing materials and the production of a reusable bitumen material. The task is to create a simple and inexpensive process, a new kind of recycling plant and a new bitumen material, in which reusable materials from roofing production or from bitumen-bound old roof demolitions can be partially recycled. According to the invention, shredded roof material is heated to a temperature of up to 220 ° C. in a melting container 10. During the heating, a mixture movement is induced in the melt material container 10. After melting, the mixed material and discharging coarse constituents 4 are pressed. Before the bitumen material is mixed with fresh bitumen in a tempered buffer tank, it is filtered in an edge filter 12. With the recycling system, both bitumen granules and bitumen material in block form can be produced with different softening points become. Surprisingly, it was found that overheating the bitumen material during the melting process does not lead to the quality losses known to the expert. The method according to the invention and the recycling plant can be used above all when reusing bituminous roofing materials. The recycling bitumen is for use in ...