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生物質顆粒機生產廠家的壓輥為什么會出現磨損?

來源:http://comicbopk.com 發布時間:2019-06-24 瀏覽次數:
  生物質顆粒機環模和壓輥壓機的主要工作部件,許多用戶只知道損壞更換磨料和壓輥,不找到磨損輥的磨損快的原因,導致磨損零件的成本的增加。今天關北機械工程師幫您分析:生物質顆粒機滾筒磨損嚴重的原因。
  Many users only know how to damage and replace abrasives and rollers, but they do not find the reason why the wear rollers wear fast, which leads to the increase of the cost of wear parts. Today, Guanbei Mechanical Engineer helps you to analyze the cause of serious wear and tear of the drum of biomass granulator.
  生物質顆粒機生產廠家的壓輥為什么會出現磨損?
  Why does the roller of biomass granulator manufacturer wear?
  壓力輥用于將材料擠壓到環模上。因為壓力輥受到摩擦和擠壓壓力很長一段時間,壓力輥的外圓周表面加工成牙槽頂殼機,這不僅增強了抗磨能力,但也很容易抓住散裝材料。壓力輥的工作條件很差。生物質秸稈、木屑等生物質原料中含有砂粒、硅化物、鐵屑等硬顆粒,除了原料引起的壓力輥的正常磨損外,還加劇了壓力輥的磨損。由于壓輥與環模的線速度基本相同,所以壓輥直徑僅為環模內徑的0.4,因此壓輥的磨損率是環模的2.5倍。壓輥的理論設計壽命為800h,但實際使用時間不超過600h。由于部分用戶使用不當,使用時間小于500h,并且由于輥筒表面磨損嚴重而失效已無法修復。軋輥磨損過快不僅會降低顆粒燃料的成型率,增加生產成本,而且直接影響生產效率。此外,當壓力輥顯示嚴重磨損,磨損層深度超過70%的工作層厚度輥的壓力,這個時候,生物質顆粒成型率已下降到75%以下,我們相信它的失敗,在這個時候,壓力輥的把握能力顯著降低,放電速度降低,散裝材料增加,外表面坑迅速增加。、
生物質顆粒機生產廠家
  Pressure rolls are used to extrude material onto the ring die. Because the pressure roll is subjected to friction and extrusion pressure for a long time, the outer circumference surface of the pressure roll is processed into the alveolar top shell machine, which not only enhances the anti-wear ability, but also makes it easy to grasp bulk materials. The working conditions of pressure rollers are very poor. Biomass raw materials such as biomass straw and sawdust contain hard particles such as sand, silicide and iron chips. In addition to the normal wear of pressure rollers caused by raw materials, the wear of pressure rollers is also aggravated. Because the linear speed of the roller is basically the same as that of the ring die, the diameter of the roller is only 0.4 of the inner diameter of the ring die, so the wear rate of the roller is 2.5 times of that of the ring die. The theoretical design life of the roller is 800 hours, but the actual service life is not more than 600 hours. Due to the improper use of some users, the service time is less than 500 hours, and the roller surface wear and tear is serious and the failure can not be repaired. Too fast wear of rolls will not only reduce the forming rate of pellet fuel, increase the production cost, but also directly affect the production efficiency. In addition, when the pressure roll shows severe wear and the depth of wear layer exceeds 70% of the working layer thickness roll pressure, at this time, the forming rate of biomass particles has dropped to less than 75%, we believe that its failure, at this time, pressure roll grasp ability significantly reduced, discharge speed decreased, bulk materials increased, and external surface pits rapidly increased.
  生物質顆粒機生產廠家的壓輥為什么會出現磨損?
  Why does the roller of biomass granulator manufacturer wear?
  當生物質顆粒的壓輥的摩擦,有硬磨料粒子表面的壓輥,導致局部塑性變形的壓輥,磨料粒子嵌入和降低金屬表面,導致部分逐漸喪失的滲碳層表面,直到幾乎消失了。不僅粉碎秸稈作為磨料,原料中含有鐵、砂等顆粒較大的硬物質雜質,而且壓輥咬傷,使壓輥表面出現凹坑、劃痕等。軋輥磨損機理與環模磨損機理基本一致。
  When biomass particles are frictioned by roller, there is a roller on the surface of hard abrasive particles, which results in local plastic deformation. Abrasive particles are embedded in and reduce the surface of metal surface, leading to the gradual loss of carburized layer surface until it almost disappears. It not only crushes straw as abrasive, but also contains iron, sand and other hard impurities with larger particles. Moreover, the crushing roll bites, which makes the surface of the crushing roll appear pits, scratches and so on. The wear mechanism of roll is basically the same as that of ring die.
  因此,在生物質顆粒機生產過程中,原料的除鐵除砂顯得尤為重要。以上是生物質顆粒機生產廠家為大家整理的相關內容,希望能幫到大家,我們的網站是http://comicbopk.com,歡迎大家來電咨詢。
  Therefore, in the production process of biomass granulator, it is particularly important to remove iron and sand from raw materials. Above is the related content that the manufacturer of bio-granulator sorted out for you. I hope to help you. Our website is http://comicbopk.com. Welcome to inquire.

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