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Plant-mixed hot recycled asphalt mixture production equipment

A technology of asphalt mixture and production equipment, which is applied in road, construction, road repair, etc., and can solve the problems of inability to utilize asphalt smoke, reduce asphalt content, and low quality of recycled asphalt

Active Publication Date: 2021-09-10
苏州东振路桥工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the above technical scheme, when regenerating old asphalt, the old asphalt mixture will be directly mixed with the hot asphalt mixture, and large smoke will be generated during mixing and heating. Generally, the treatment of the smoke is after coarse filtration. It is directly discharged into the atmosphere, but the flue gas contains more asphalt volatiles, which reduces the asphalt content in the asphalt mixture, cannot make good use of asphalt fume, and leads to low quality of recycled asphalt

Method used

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  • Plant-mixed hot recycled asphalt mixture production equipment
  • Plant-mixed hot recycled asphalt mixture production equipment
  • Plant-mixed hot recycled asphalt mixture production equipment

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Embodiment 1

[0051] A method for preparing a plant-mixed heat-recycled asphalt mixture disclosed by the present invention comprises the following steps:

[0052] Step1, use the crushing device to crush the old asphalt material, and then sieve the old asphalt material into fine material and coarse material;

[0053] Step2, respectively heat the fine material and coarse material obtained in Step1, collect and concentrate the asphalt fume during the heating process;

[0054] Step3, use the stirring shaft to mix the fine material and the coarse material during the heating process, and add part of the heated lubricating oil and regeneration agent to the fine material and the coarse material;

[0055] Step4, fully mix the coarse material and fine material obtained in Step3, add heated lubricating oil and regenerant during the mixing process, so that the lubricating oil and regenerant can be mixed with the old asphalt material more evenly;

[0056] Step5, collect the asphalt fume in Step2, Step3...

Embodiment 2

[0058] refer to figure 1 , is the factory-mixed hot recycled asphalt mixture production equipment disclosed in the present invention, comprising a fine material mixing tank 1, a coarse material mixing tank 2 and a recycled material mixing tank 3, a fine material mixing tank 1, a coarse material mixing tank 2 and a recycled material mixing tank The upper end of the bucket 3 is provided with a feed port, the fine material enters the fine material mixing tank 1, and the coarse material enters the coarse material mixing tank 2, and the mixing tank can simultaneously carry out the mixing of the fine material and the coarse material. heating. One side of the regenerated material mixing tank 3 is provided with a storage tank 4 for storing the regenerant and lubricating oil, and a heating device is installed inside the storage tank 4, which is heated while storing the lubricating oil and regenerant, and the material is stored The bucket 4 is connected with the fine material mixing bu...

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Abstract

The invention relates to a plant-mixed hot recycled asphalt mixture production equipment, which comprises the following steps: separately heating and stirring the fine material and the coarse material; fully mixing the coarse material and the fine material; Collect the high-temperature asphalt fume into the lubricating oil or regenerant; including the fine material mixing tank, the coarse material mixing tank and the recycled material mixing tank, as well as the storage tank, the fine material mixing tank, the coarse material mixing tank and the The upper end of the recycled material mixing barrel is connected with a flue gas collecting pipe, and the flue gas collecting pipe is connected with the material storage barrel. The present invention fully mixes the asphalt volatiles in the asphalt fume with the lubricating oil or the rejuvenating agent when the fine material and the coarse material are thermally processed and mixed, so that the asphalt volatiles can be fully mixed with the lubricating oil and the regenerating agent Mixing can ensure the performance of the recycled asphalt material to the greatest extent, and at the same time improve the recycling rate of the old asphalt material.

Description

technical field [0001] The invention relates to the technical field of asphalt preparation, in particular to a method for preparing a plant-mixed hot recycled asphalt mixture and production equipment thereof. Background technique [0002] After more than ten years of rapid development of my country's highways, a large number of asphalt pavements will enter the period of major and medium repairs. Compared with traditional asphalt pavement maintenance methods, asphalt pavement regeneration can save a lot of raw materials such as asphalt and gravel, save engineering investment, and at the same time help to deal with waste and protect the environment, so it has significant economic benefits, social and environmental benefits. With people's attention to environmental protection, social benefits, and technological progress, asphalt pavement recycling technology has attracted more and more attention. [0003] In the prior art, the invention patent with the publication number CN102...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C19/10
CPCE01C19/1004
Inventor 李守东耿金龙陶志国唐修佳史代明王方磊肖进林陈茂祥罗万里
Owner 苏州东振路桥工程有限公司