V-type polyurethane air cleaner section used for cleaning the conveyor belt of non-face. Scraper blade made of polyurethane production, low coefficient of friction, wear resistance, corrosion resistance, it will not hurt to put fracture belt, parallel structures rack allows cleaning snapping conveyor belt. It can automatically adjust the height position of the cleaning device according to the amount of wear and conveyor belt cleaning blade position changes. And simple structure, easy maintenance. Adaptation: 1, adaptation Bandwidth: 500-2000 (mm) 2, to adapt with speed: ≤3.5 (m / s) 3, Material humidity: ≤15% 4, the working temperature: -40C ~ 90 C