Road sweeper and sweeping method thereof

Abstract

The invention relates to a sweeping vehicle and a sweeping operation method thereof. The sweeping vehicle comprises a fan, a water tank, a dustbin and a water pump which are arranged on a frame, wherein butterfly-type sweeping brushes and a sucker are arranged on the frame; a suction tube communicated with the dustbin is arranged on the sucker; a semi-enclosed dust collecting screen covering the butterfly-type sweeping brushes is hung under the frame; the sucker is communicated with the semi-enclosed dust collecting screen; the fan pumps dust and garbage swept by the butterfly-type sweeping brushes in the semi-enclosed dust collecting screen so as to form dust-containing airflow which enters the dustbin through the sucker and the suction tube; the water pump pumps and sprays snow-melting agent aqueous solution or water in the water tank over the dust-containing airflow through nozzles arranged in the sucker and / or the suction tube; and the fan pumps clean airflow which is settled through gravity and filtered through a filter screen, and discharges the clean airflow through an air discharge channel. The sweeping vehicle can perform dry-type sweep and wet-type dust control or wet-type sweep and wet-type dust control, and has good dust control effect. The ground subjected to dry-type sweep has no mud trace of mixed water and dust. In a frozen climatic environment, the sweeping vehicle does not spray the snow-melting agent aqueous solution over the ground during sweeping operation.

Description

technical field [0001] The invention relates to sanitation equipment and its working method, in particular to a road sweeper and its cleaning operation method. Background technique [0002] Due to seasonal changes and geographical reasons, when sweeping suction road sweepers are used for cleaning operations in northern cities in winter, the water in the water tank is easy to freeze, and the garbage in the garbage bin is easy to freeze, and when the water is sprayed on the ground, it will form thin ice. It is easy to cause pedestrians to fall or vehicles to skid, causing unsafe hidden dangers in urban traffic. [0003] In order to solve the above problems, the prior art has proposed multiple technical solutions for wet and dry road sweepers. Although the structure of a variety of wet and dry road sweepers can be divided into single-stage dust filter or multi-stage dust filter, their working principle is basically the same, that is, in the process of dry cleaning operation, i...

AI Technical Summary

Problems solved by technology

In fact, the flow air volume generated by the fan of the sweeping suction road sweeper is about 3000m 3 / h~10000m 3 / h, when the ambient temperature is -10°C or -20°C, it is difficult to prevent the atomized water droplets ejected from the nozzle from freezing in the fast-flowing cold air only by the heat transferred from the exhaust pipes of the main and auxiliary engines. Difficult to achieve better humidification and dust control effect

At the same time, the dust generated by the sweeping brush during dry cleaning operations is large, which will cause a wide range of air pollution

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