A microwave heating raking machine and its microwave heating wall

Abstract

The invention discloses a microwave heating wall for a microwave heating raking machine, comprising a main microwave heating wall and auxiliary microwave heating walls hinged on both sides thereof, the two auxiliary microwave heating walls and the main microwave heating wall have the same structure, Several rows of microwave heating components are uniformly arranged inside the microwave heating frame, each microwave heating component includes a microwave generating magnetron, and the waveguide antenna is connected below the microwave radiation port of the microwave generating magnetron, and a wave-transmitting protection plate is arranged horizontally below the waveguide antenna ; The microwave generating magnetron in the main microwave heating wall generates microwave energy with a frequency of 2.45 GHz, and the microwave generating magnetron in the secondary microwave heating wall generates microwave energy with a frequency of 5.8 GHz. The present invention adopts microwave heating technology combining 2.45 GHz and 5.8 GHz frequencies to respectively realize the secondary heating of asphalt stockpiles gathered up after raking and thermal bonding heating of asphalt pavement after raking, without aging and coking of asphalt materials, Efficient and environmentally 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 a microwave heating raking machine with the microwave heating wall. Background technique [0002] In the process of hot-in-place regeneration, the heating raking machine is often placed behind multiple asphalt pavement heaters, and is mainly used for raking the heated and softened asphalt pavement to form a soft pile of recycled material. [0003] Existing heating raking machines tend to gather up 150mm-200mm thick recycled material piles for asphalt pavement raking operations. The temperature of the recycled material is generally 120°C to 140°C, and it is often necessary to perform secondary heating to increase the temperature, and then mix with the new asphalt. After the mixture is evenly mixed, it is paved and rolled, and the secondary heating and heating methods are mostly fuel / gas open fi...

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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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