Microwave heating raking machine and microwave heating wall

Abstract

The invention discloses a microwave heating wall for a microwave heating raking machine. The microwave heating wall consists of a main microwave heating wall and auxiliary microwave heating walls hinged to two sides of the main microwave heating wall, the main microwave heating wall and the auxiliary microwave heating walls have identical structure, several rows of microwave heating components are evenly arranged inside a microwave heating frame, each microwave heating component comprises a microwave generation magnetron, a waveguide antenna is connected below a microwave radiation port of the microwave generation magnetron, and a wave transparent protection board is horizontally arranged below the waveguide antenna. The microwave generation magnetrons in the main microwave heating wall generate microwave energy with frequency of 2.45GHz, and the microwave generation magnetrons in the auxiliary microwave heating walls generate microwave energy with frequency of 5.8GHz. According to the invention, a 2.45GHz and 5.8GHz frequency combined microwave heating technology is employed to realize reheating and temperature raising of asphalt pile gathered after harrowing and thermal caking heating of asphalt pavement after harrowing, the asphalt material is free of aging and coking, and is efficient and environment-friendly.

Description

technical field [0001] The invention relates to the technical field of road maintenance equipment, in particular to a microwave heating wall for a microwave heating raking machine, and also relates to a microwave heating raking machine with the microwave heating wall. Background technique [0002] During the hot-in-place regeneration construction process, the heated raking machine is often placed behind multiple asphalt pavement heating machines, and is mainly used to rake the heated and softened asphalt pavement to form a soft pile of recycled materials. [0003] Existing heating and raking machines usually gather up 150mm-200mm thick recycled material piles for the asphalt pavement raking operation, and the temperature of recycled materials is generally 120°C-140°C. After the mixture is evenly mixed, it is paved and rolled. The secondary heating method is mostly fuel oil / gas open flame heating, gas infrared heating or diesel hot air circulation heating. The heating tempera...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art, providing a microwave heating raking machine and its microwave heating wall, using microwave heating technology combining 2.45GHz frequency and 5.8GHz frequency magnetron, using 2.45GHz frequency The microwave heating magnetron heats up the raked asphalt pile for the second time, the heating depth is 150mm~200mm, no smoke and no flame, no aging and coking of the asphalt material, high efficiency and environmental protection; 5.8GHz frequency microwave heating magnet is used Controlled thermal bonding heating of raked asphalt pavement, the heating depth is 75mm ~ 80mm, which solves the problem that the temperature difference between the old and new pavement in the market is too large, it cannot be bonded effectively, and it is easy to form weak joints and weak interfaces

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