Moving type asphalt mixture regeneration equipment

Abstract

The invention discloses moving type asphalt mixture regeneration equipment which comprises a rack, wherein a main combustor, a hot blast heater, a drying heating cylinder and an asphalt storage device are mounted on the rack; a tail gas conveying tube is connected to a tail gas outlet of the drying heating cylinder; the tail gas conveying tube is connected with the main combustor through a draft fan; at least one section of the tail gas conveying tube stretches into the asphalt storage device for preserving the heat. The equipment disclosed by the invention can move, is capable of regenerating an asphalt pavement surface rapidly and is high in efficiency; when being heated and preserved, a regenerated material and the asphalt do not contact with open fire, and then the quality is ensured; as an asphalt storage tank is arranged above the hot blast heater, the heat of the hot blast heater is sufficiently utilized to preserve the heat of the asphalt, and meanwhile, as a tail gas which is generated in heating is introduced into the asphalt storage tank, the residual heat of the tail gas is utilized to preserve the heat of the asphalt, the fuel is saved, and the heat utilization rate of the equipment is improved; as the tail gas is introduced to the main combustor for secondary combustion, secondary pollution is avoided; the weight of the regenerated material is weighted by using a pressure sensor, and the regenerated material is mixed with the asphalt in a grading manner, thereby obtaining a high-quality asphalt pavement material.

Description

technical field [0001] The invention belongs to the field of machinery and auxiliary tools for road or similar engineering construction or pavement, and in particular relates to a mobile asphalt mixture regeneration equipment. Background technique [0002] Asphalt mixture recycling equipment is used to process waste asphalt fragments from old road surface milling so that they can be reused. Existing asphalt mixture recycling equipment usually heats asphalt scrap (recycled material) to 160 to 200 degrees, and mixes it into the original asphalt mixture (referred to as asphalt) at a ratio of generally no more than 50%. Stirring allows this asphalt mixture to be spread on the road again for use. Before heating and stirring, recycled materials and asphalt need to be continuously heated and kept warm, so at least two burners are needed for heating, resulting in a large waste of fuel, and if the open flame of fuel combustion is not well controlled, it is easy to cause asphalt or r...

AI Technical Summary

Problems solved by technology

Before heating and stirring, recycled materials and asphalt need to be continuously heated and kept warm, so at least two burners are required for heating, resulting in a large waste of fuel, and if the open flame of fuel combustion is not well controlled, it is easy to cause asphalt or recycled materials to burn Aging affects the quality; moreover, when the burner burns and heats, it is easy to produce a large amount of incompletely burned exhaust gas with residual temperature, and when the exhaust gas passes through the recycled material drying and heat preservation device, it will wrap and take away part of the fuel

Existing equipment causes environmental pollution to this part of the tail gas or direct discharge, or discharges after simple tail gas treatment, which has not been fully utilized by adopting a reasonable design

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