Asphalt RAP pavement milling material crushing and screening production line

Description :

　　Since its establishment, Xibao Heavy Industry has been focusing on providing customers with competitive equipment solutions and services in the field of asphalt mixing/recycling. Our product development and manufacturing cover multiple product series, including asphalt mixture mixing equipment, asphalt plant mixing and hot recycling equipment, waste asphalt mixture crushing and screening equipment, asphalt warm mixing equipment, etc. Among them, the asphalt plant mixing and hot recycling equipment has gained high recognition from industry customers due to its technological advantages.

　　Rooted in China, facing the world. Xibao Heavy Industry has always taken "sincere customer service" as the driving force for the company's development, segmenting customer needs and providing customized mechanical equipment. The company's sales and service network covers the whole country

　　Multiple provinces, cities, and autonomous regions.

　　With a large amount of asphalt waste material (RAP) being reused, more and more customers are paying attention to equipment in the field of asphalt recycling, and the demand for related equipment has doubled accordingly. Jiangsu Xibao Heavy Industry, as a rising star in the field of asphalt recycling, has attracted a lot of attention from customers for its independently developed recycling products.

　　From this year's equipment sales data, it can be seen that the XB series asphalt waste crushing and screening equipment from Xibao Heavy Industry has been exceptionally popular in sales. As of now, it has been put into use in provinces and cities across the country such as Zhejiang, Jiangsu, Anhui, Xinjiang, Hubei, and Beijing, and has been exported to overseas countries such as Vietnam, helping RAP to recycle and achieve resource regeneration.

　　What are the advantages of XB series roller crushing and screening equipment?

　　The XB series is a specialized crushing and screening product launched by Xibao Heavy Industry based on its rich design experience in asphalt plant mixing and hot recycling equipment, combined with the particularity of domestic RAP material acquisition methods. The equipment adopts flexible separation technology combined with high-frequency screening technology to ensure the gradation control requirements in the production process of RAP mixture with high mixing ratio. The flexible crushing and screening method avoids the secondary damage of RAP grading, and the high-frequency screening technology can screen RAP below 4.75mm, ensuring the control of the proportion of fine materials in the mixture grading.

　　RAP flexible crushing and screening "3-step method":

　　1. First level single roll flexible separation

　　The crushing roller of the single roll primary crusher works in conjunction with the hydraulic driven pushing device, resulting in high crushing efficiency. Low speed combined with a movable buffer plate can achieve flexible separation. The wear-resistant parts on the crushing roller adopt the standard cutting head of the milling machine, which has good wear resistance and is easy to replace.

　　2. Grading system

　　The high-frequency vibration motor is used as the driving force motor to drive the screen mesh to vibrate (the screen body does not move), solving the problem of RAP material blockage below 4.75mm and achieving high-speed tapping of materials. This structure combines the conventional vibrating screen and vibrating screen into one, and one vibrating screen can separate three types of materials, reducing equipment occupation and saving costs.

　　3. Secondary roller type flexible separation

　　The double roll secondary crusher is equipped with two sets of crushing rollers arranged in a cross pattern. One of the crushing rollers is equipped with a spring tensioning device, which can adjust the gap between the crushing rollers to achieve the adjustment of material particle size and output after crushing. Compared with hammer crushing and impact crushing, roller crushing causes less damage to the gradation of RAP raw aggregates. The roller speed is low and the crushing method has minimal impact, greatly extending the service life of the equipment. At the same time, there is almost no dust generated during on-site work.

　　In recent years, the construction of asphalt roads in China has developed rapidly. As of the end of 2011, the total length of asphalt roads in the country exceeded 570000 kilometers, including 84000 kilometers of asphalt highways and 487000 kilometers of ordinary asphalt roads. During the 12th Five Year Plan period, the average annual growth rate of asphalt pavement highways will reach over 9%, and the length of expressways will exceed 130000 kilometers. The construction of asphalt pavement highways is still in a period of rapid development. During the 11th Five Year Plan period, a total of approximately 801.1 billion yuan was allocated nationwide for highway maintenance projects, including 167000 kilometers of major repairs, 364000 kilometers of medium repairs, and 550000 kilometers of road network reconstruction projects. During the 12th Five Year Plan period, there will be a 10-20% increase in investment and maintenance of highway projects. As one of the indispensable equipment in the construction and maintenance of asphalt pavement highways, the market for asphalt mixture mixing equipment has also risen accordingly. According to the Statistical Yearbook of China Construction Machinery Industry Association, from 2006 to 2011, the annual sales volume of asphalt mixing equipment in China increased from 360 units to 812 units, with an average annual growth rate of about 18%. During this period, the global crisis triggered by the US subprime mortgage crisis in April 2007 had a significant impact on the development of the industry, resulting in a negative sales growth rate in 2007. With the introduction of the national 4 trillion yuan economic stimulus plan at the end of 2008, it has played a significant role in promoting the construction of domestic infrastructure, especially major infrastructure such as railways and highways. The 48.5 billion yuan investment in highway construction has driven the explosive growth of asphalt mixing equipment in China.

AfterSalesService :

• RAP pavement milling material