Novel hot air type heating equipment based on old asphalt road surface heat regeneration

Abstract

The invention discloses novel hot air type heating equipment based on old asphalt road surface heat regeneration, and belongs to the field of road surface maintenance equipment. While not working or justly stopping exhausting air, the novel hot air type heating equipment based on old asphalt road surface heat regeneration can package an orifice of an air outlet through an inner self-bending baffleplate and a self-expanding baffle plate, effectively prevents blown-out hot air from carrying dust to reversely seep from the air outlet, and protects the air outlet from being easily blocked by dust, thereby effectively reducing potential safety hazards by gathering hot air at a hot air diffusing plate during next-time use; in work, hot air generates push force to rotate a self-suction self-repulsion ball rod to remove adsorption force of the self-bending baffle plate and the self-expanding baffle plate; under action of air, the self-expanding baffle plate is timely expanded to restore permeability at the air outlet; along with increase of heating time, a hot softening piece is heated to soften such that a bent connecting piece can be deformed under action of push force of hot air, and thus, air outlet amount at the air outlet is further increased, and heating efficiency is further improved.

Description

technical field [0001] The invention relates to the field of road surface maintenance equipment, and more specifically relates to a new type of hot air heating equipment based on thermal regeneration of old asphalt pavement. Background technique [0002] The hot-in-place regeneration unit is a construction machine that heats the road surface, loosens it, adds regeneration agent, new asphalt mixture, paves and compacts it to form a new road surface. Most of the hot-in-place regeneration comprehensive equipment remixers in the prior art adopt three methods to heat the road surface. They are infrared radiation heating, microwave heating and hot air circulation heating respectively. Infrared radiation heating has the following defects in use. First, the infrared radiation ability is not strong, the temperature gradient of the road surface is large, and the heating is uneven; second, it is difficult to effectively and timely control the temperature of infrared radiation heating...

AI Technical Summary

Problems solved by technology

One is that the heating depth is not easy to control, which affects the quality of the pavement after regeneration; the other is that microwave radiation can cause great harm to the human body

Third, the microwave heating components are easily damaged and the cost is high

[0003] The invention patent with the patent number CN201711339882.4 discloses a hot-air asphalt pavement heating equipment for thermal regeneration of old asphalt pavement. When the hot air is circulated and heated, the air outlet is facing the asphalt pavement. In order to ensure that the heat on the hot air heats the road surface Efficiency, the air outlet is very close to the road surface, due to the blowing force of the wind, the dust on the road surface will spread in the hot air cover with the wind, and will adhere to the air outlet, especially when the hot air is just finished, at this time the hot air exists to the hot air In the case of reverse osmosis inside the hood, a large amount of dust will be carried through the air outlet, causing the air outlet to be easily blocked. When heating next time, the heat will easily accumulate in the hot air hood, posing a greater safety hazard

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