阅读说明：本技术 一种用于旧沥青混凝土回收的微波加热装置 (Microwave heating device for recycling old asphalt concrete ) 是由 李红 于 2018-08-10 设计创作，主要内容包括：本发明中公开了一种用于旧沥青混凝土回收的微波加热装置,包括密封筒体、输送机构、加热机构、进料机构和出料机构,所述的加热机构包括：磁控管阵列4和微波抑制器15,所述磁控管阵列4和微波抑制器15设置台密封筒体内,所述磁控管阵列4设置在输送机构上方,所示微波抑制器15设置在磁控管阵列4两端。本发明采用磁控管阵列和微波抑制器15,将微波能量集中控制在输送带上,对旧沥青混凝土进行加热回收,利用微波加热能够很好的解决传统加热对旧沥青造成的老化、焦化和产生蓝烟等破坏旧沥青结构,导致旧沥青回收率下降的问题。(The invention discloses a microwave heating device for recycling old asphalt concrete, which comprises a sealing cylinder, a conveying mechanism, a heating mechanism, a feeding mechanism and a discharging mechanism, wherein the heating mechanism comprises: the microwave suppression device comprises a magnetron array 4 and microwave suppressors 15, wherein the magnetron array 4 and the microwave suppressors 15 are arranged in a sealed cylinder, the magnetron array 4 is arranged above the conveying mechanism, and the microwave suppressors 15 are arranged at two ends of the magnetron array 4. According to the invention, the magnetron array and the microwave suppressor 15 are adopted, microwave energy is intensively controlled on the conveying belt to heat and recover the old asphalt concrete, and the problem of the reduction of the recovery rate of the old asphalt caused by the damage of old asphalt structures, such as aging, coking, blue smoke generation and the like caused by the traditional heating on the old asphalt can be well solved by utilizing the microwave heating.)

1. The utility model provides a microwave heating device for old asphalt concrete retrieves, includes sealed barrel (13), conveying mechanism, heating mechanism, feed mechanism and discharge mechanism, its characterized in that, heating mechanism include: the microwave oven comprises a magnetron array (4) and microwave suppressors (15), wherein the magnetron array (4) and the microwave suppressors (15) are arranged in a sealing cylinder body (13), the magnetron array (4) is arranged above a conveying mechanism, and the microwave suppressors (15) are arranged at two ends of the magnetron array (4).

2. The microwave heating device for recycling the old asphalt concrete according to claim 1, wherein the conveying mechanism is a belt conveying mechanism (5), the belt conveying mechanism (5) is horizontally arranged at the center of the sealing cylinder body (13), and a belt conveying belt of the belt conveying mechanism (5) is provided with a groove (6).

3. The microwave heating device for recycling old asphalt concrete according to claim 1, wherein the feeding mechanism comprises a material tank (1) and a material pump (2). The feed pump (2) is respectively connected with the feed tank (1) and the feeding bin (3), and one end of the feeding bin (3) is welded on the barrel body and corresponds to the feed end of the conveying mechanism in the barrel body.

4. The microwave heating device for recycling old asphalt concrete according to claim 1, wherein the discharging mechanism comprises a material receiver (10), a material scraping blade and a crushing device (8), the material receiver (10) is arranged on the sealing cylinder (13) below the discharging end of the conveying mechanism, the crushing device (8) is arranged above the discharging end, and the material scraping blade is arranged above the material receiver (10) and clings to the conveying belt.

5. The microwave heating device for recycling old asphalt concrete according to claim 1, characterized in that a cleaning device (7) is further arranged in the sealing cylinder body (13), and the cleaning device (7) is arranged above the conveying mechanism.

6. The microwave heating device for recycling old asphalt concrete according to claim 1, characterized in that a cooling device (12) is further arranged at the discharge end of the conveying mechanism.

Technical Field

The invention relates to the field of waste building material recovery, in particular to a microwave heating device for recovering waste asphalt concrete.

Background

As the asphalt pavement constructed in early stage of China generally enters the maintenance and curing stage. A large amount of old asphalt concrete reclaimed materials are inevitably generated in the maintenance, the reconstruction and the expansion processes, and long-term accumulation and storage not only causes waste, but also occupies a large amount of land. The recycling of the old recycled asphalt concrete materials saves resources, protects the environment and has obvious economy, and the experimental research on recycling of asphalt mixtures is widely carried out in various countries in the world for many years, so that fruitful results are obtained, and the recycling method is popularized and applied in practice in a large area. The treatment of the recycled old asphalt concrete material can produce two benefits. On one hand, the method has economic benefit, and the recovered and separated mineral resources and asphalt resources can be reused for paving the newly-built highway, so that the economic benefit is directly generated. According to investigation, the recycling of the old asphalt concrete can reduce the road surface cost by about 25 percent; on the other hand, the recycling of the old asphalt concrete can reduce the pollution to the environment, meet the application of sustainable development in engineering construction and reduce the influence of new stone mining on vegetation damage, water and soil loss and other ecological damages. The problems that old asphalt is easy to age, coke, generate blue smoke and the like exist in the traditional heat conduction and heat radiation drying and heating old asphalt concrete reclaimed materials, and aiming at the problems, a microwave heating device for recovering the old asphalt concrete is developed.

Disclosure of Invention

The present invention is directed to solving the problems occurring in the above-described technology. The microwave heating device for recycling the old asphalt concrete adopts a magnetron array and a microwave suppressor 15, controls microwave energy on a conveying belt in a centralized manner, heats and recycles the old asphalt concrete, and can well solve the problem that the recycling rate of the old asphalt is reduced due to the fact that the old asphalt is damaged by aging, coking, blue smoke and the like caused by traditional heating.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

the utility model provides a microwave heating device for old asphalt concrete retrieves, includes sealed barrel, conveying mechanism, heating mechanism, feed mechanism and discharge mechanism, heating mechanism include: the microwave suppression device comprises a magnetron array 4 and microwave suppressors 15, wherein the magnetron array 4 and the microwave suppressors 15 are arranged in a sealed cylinder, the magnetron array 4 is arranged above the conveying mechanism, and the microwave suppressors 15 are arranged at two ends of the magnetron array 4.

Further, as a preferred technical scheme, the conveying mechanism is a belt conveying mechanism, the belt conveying mechanism is horizontally arranged at the center of the sealing cylinder body, and a belt conveying belt of the belt conveying mechanism is provided with a groove.

Further, as a preferred technical scheme, the feeding mechanism comprises a material groove and a material pump. The feed pump is connected with the feed tank and the feeding bin respectively, and one end of the feeding bin is welded on the barrel and corresponds to the feed end of the conveying mechanism in the barrel.

Furthermore, as a preferred technical scheme, the discharging mechanism comprises a material receiver, a material scraping blade and a crushing device, the material receiver is arranged on the sealing cylinder below the discharging end of the conveying mechanism, the crushing device is arranged above the discharging end, and the material scraping blade is tightly attached to the conveying belt and arranged above the material receiver.

Further, as a preferred technical scheme, a cleaning device is further arranged in the sealing cylinder body and is arranged above the conveying mechanism.

Further, as a preferable technical scheme, a cooling device is further arranged at the discharging end of the conveying mechanism.

The invention has the following beneficial effects:

according to the invention, the magnetron array and the microwave suppressor 15 are adopted, microwave energy is intensively controlled on the conveying belt to heat and recover the old asphalt concrete, and the problem of the reduction of the recovery rate of the old asphalt caused by the damage of old asphalt structures, such as aging, coking, blue smoke generation and the like caused by the traditional heating on the old asphalt can be well solved by utilizing the microwave heating.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

In the figure: 1. a trough; 2. a material pump; 3. a feeding bin; 4. a magnetron array; 5. a belt conveying mechanism; 6. a groove; 7. a cleaning device; 8. a crushing device; 9. a material scraper; 10. a material receiver; 11. a discharge valve; 12. a cooling device; 13. sealing the cylinder body; 14. a blowoff valve; 15. a microwave suppressor 15.

Detailed Description

The invention is further described with reference to the following figures and specific embodiments.