Electromagnetic wave heater for asphalt heating

Abstract

The invention relates to an electromagnetic wave heater for asphalt heating, which is characterized by comprising a cylindrical housing, wherein more than five layers of cylindrical clapboards for forming annular flow ways are arranged between an upper cover and a lower cover of the housing and are coaxial with the cylindrical wall; a plurality of strip-shaped vertical clapboard-type electromagnetic wave heaters penetrate through the upper and lower covers of the housing and are arranged between the adjacent cylindrical clapboards along a radial direction; the annular flow ways are divided into a plurality of fan-shaped section heat exchanging regions; an overflowing opening is arranged at the upper end or the lower end of each electromagnetic wave heater; the overflowing openings of the adjacent electromagnetic wave heaters are arranged at upper and lower opposite ends; a layer exchanging gap is arranged at an asphalt flowing tail end on the upper edge of each of the electromagnetic wave heaters corresponding to the front annular flow way; the bottom of the outermost annular flow way is connected with an asphalt inlet; the upper end of the central cylindrical clapboard is connected with an asphalt outlet; an insulating layer is arranged on the outer side of the housing; and each electromagnetic wave heater consists of a heat exchanging sheet and an infrared electromagnetic wave heating tube. The electromagnetic wave heater has the advantages of obtaining enough heat exchanging area, exactly controlling the temperature, saving the energy, reducing the consumption and ensuring the safe production.

Description

technical field [0001] The invention relates to a heating device for heating matrix asphalt and rubber powder modified asphalt in the asphalt industry, in particular to an electromagnetic wave heater for asphalt heating. Background technique [0002] At present, in the asphalt industry, especially in the production of rubber powder modified asphalt, the heating of matrix asphalt and rubber powder modified asphalt is completed by burning coal, diesel or oil and natural gas. Overheating of the material will cause coking on the wall of the heating pipe, which will easily cause safety production accidents, increase energy consumption, and reduce thermal efficiency through flame heating; especially with the increasing shortage of petroleum products, the production cost continues to increase, which affects the normal development of the industry . Therefore, how to improve the heating method, realize accurate control of heating temperature, energy saving and safe production has be...

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Problems solved by technology

[0002] At present, in the asphalt industry, especially in the production of rubber powder modified asphalt, the heating of matrix asphalt and rubber powder modified asphalt is completed by burning coal, diesel or oil and natural gas. Overheating of the material will cause coking on the wall of the heating pipe, which will easily cause safety production accidents, increase energy consumption, and reduce thermal efficiency through flame heating; especially with the increasing shortage of petroleum products, the production cost continues to increase, which affects the normal development of the industry

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