Environment-friendly indirect type roller heating device with heat preservation

Abstract

The invention relates to an environment-friendly indirect type roller heating device with heat preservation. The environment-friendly indirect type roller heating device with heat preservation comprises a heat preservation cover (2) and a roller (1) arranged in the heat preservation cover (2), wherein supporting wheels (9) which support and rotate the rotation of the roller (1) are arranged on theouter wall of the roller (1); a wire heater (5) is arranged on the outer wall of the roller (1), and the wire heater (5) is distributed on the roller (1) in a multi-point mode; and material guide blades (10) for stirring materials are arranged in the roller (1). A double-layer cylinder structure is adopted in the heating roller, an outer cylinder (provided with a barrel cover) is used for heat preservation, and an inner cylinder is used for heating. An external type is adopted in heating, heating units are arranged in a multi-point mode, a cylinder body is uniformly heated, and an asphalt mixture is heated through conduction and radiation, so that the temperature of the regenerated asphalt mixture is uniform, the gradation and the asphalt-aggregate ratio do not change obviously, and the quality of the asphalt mixture is ensured to a greater extent.

Description

technical field [0001] The invention relates to a built-in indirect drum heating device with heat preservation and environmental protection, which belongs to the technical field of road surface maintenance. Background technique [0002] The drum heating device is one of the commonly used small equipment for asphalt mixture regeneration and heating during asphalt pavement maintenance. When the existing drum-type asphalt mixture heating device heats the asphalt mixture, the high-temperature open flame of the burner directly heats the asphalt mixture, which may easily cause the heated asphalt mixture to be heated unevenly, easily burn the asphalt material, and the mixture is easy to segregate. A large number of fine aggregates stick to the wall of the sticky cylinder, destroying the gradation of the regenerated asphalt mixture. Contents of the invention [0003] The purpose of the present invention is to provide an environment-friendly indirect drum heating device with heat ...

AI Technical Summary

Problems solved by technology

When the existing drum-type asphalt mixture heating device heats the asphalt mixture, the high-temperature open flame of the burner directly heats the asphalt mixture, which may easily cause the heated asphalt mixture to be heated unevenly, easily burn the asphalt material, and the mixture is easy to segregate. A large number of fine aggregates are on the sticky drum wall, destroying the gradation of the recycled asphalt mixture

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