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Heating method of foam warm-mix asphalt aggregate

A warm-mix asphalt and heating method technology, applied in the field of asphalt, can solve the problems of high heating temperature and high energy consumption, and achieve the effects of convenient heating control, saving energy consumption, and avoiding excessive heating temperature

Inactive Publication Date: 2019-11-12
SHENZHEN MUNICIPAL ENG +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a heating method for foamed warm-mix asphalt aggregates, aiming to solve the problem in the prior art that the heating temperature in the production process of asphalt aggregates is too high, resulting in large energy consumption

Method used

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  • Heating method of foam warm-mix asphalt aggregate
  • Heating method of foam warm-mix asphalt aggregate
  • Heating method of foam warm-mix asphalt aggregate

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Embodiment Construction

[0025] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0026] The implementation of the present invention will be described in detail below in conjunction with specific embodiments.

[0027] In the drawings of this embodiment, the same or similar symbols correspond to the same or similar components; The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orien...

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Abstract

The invention relates to the technical field of asphalt, and discloses a heating method of foam warm-mix asphalt aggregate. The heating method comprises the following steps that 1) two independent heating cylinders are provided, mineral aggregate is fed into one heating cylinder, the heating temperature is controlled to be not lower than 180 DEG C, recycled asphalt pavement materials are fed intothe other heating cylinder, and the heating temperature is controlled to be not lower than 100 DEG C; 2) the heated asphalt is foamed in a foaming bin to form foamed asphalt, wherein the temperature of the heated asphalt is not lower than 160 DEG C; and 3) the heated mineral aggregate, the recycled asphalt pavement material and the foamed asphalt are fed into a stirring cylinder to be stirred andmixed to form the foam warm-mix asphalt aggregate. The mineral aggregate and the recycled asphalt pavement material are separately heated, heating control is facilitated, the heated mineral aggregate,the recycled asphalt pavement material and the foamed asphalt are placed in the stirring cylinder to be mixed, heating is separately controlled in the whole production process, the problem that the heating temperature is too high is avoided, and energy consumption is greatly saved.

Description

technical field [0001] The patent of the present invention relates to the technical field of asphalt, in particular, to a heating method for foamed warm-mix asphalt aggregates. Background technique [0002] Highway construction needs to consume a lot of materials. More than 80% of the current urban roads and expressways are asphalt pavement, and the asphalt, sandstone, mineral powder and other materials required for asphalt pavement are non-renewable resources. Since the stone materials are all excavated and processed from the mountain, the use of a large number of sand and gravel materials requires the mining of more mountains, which will inevitably lead to the destruction of the ecological environment such as the reduction of forest vegetation and soil erosion. [0003] According to statistics, more than 10 million tons of old asphalt mixtures are excavated during renovation and excavation every year, and this number is still increasing year by year. Most of them are recyc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C19/08E01C19/10
CPCE01C19/08E01C19/1022E01C19/1063E01C19/1072Y02A30/30
Inventor 涂亮亮袁立群罗燕山陈学水刘忠冯永坚
Owner SHENZHEN MUNICIPAL ENG
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