Frozen coal removal in the winter train car can be done efficiently with the help of a sweeper or a scraper. These equipment can easily clean up the remaining coal in the wagon in a mechanized way, improve the operation efficiency, and reduce the labor intensity of workers.
During the train journey, the coal in the carriage can easily freeze due to temperature changes, forming lumps of coal that are difficult to clean. To solve this problem, we can consider equipping the train's lift cab with a sweeper or a scraper. The sweeper can clean the coal slag by rotating the brush head, while the scraper can scrape the coal flat for subsequent cleaning work. 
The use of these equipment to clean up the remaining coal in the wagons can not only improve the efficiency of the operation, but also reduce the labor intensity of the workers. By mechanizing the cleaning, it can avoid the omissions and incompleteness of manual cleaning, and at the same time, it can also save a lot of human resources. In addition, the operation of these devices is simple and easy, which can save workers' training time and cost. 
In winter, it is important to clean up the frozen coal in the train car. By equipping with mechanized equipment such as sweepers or scrapers, this work can be completed efficiently, improve operation efficiency, reduce the labor intensity of workers, and avoid coal waste and environmental pollution. Therefore, we should actively promote this mechanized cleaning method to provide a better solution for the cleaning of frozen coal in the winter train car.