The invention discloses an all-weather wet dust removal device for a sweeper and a combined dust removal treatment method. The all-weather wet dust removal device comprises a venturi scrubber, a cyclone dust collector, a flushing valve, a settling water tank, a baffle, a water circulating pipe, a water level control valve, an overflow pipe and a mud discharging hole. The treatment method comprises the following steps: (1) taking the venturi scrubber as a primary dust collector; and (2) taking the cyclone dust collector as a secondary dust collector. The device has the advantages that (1) secondary pollution is avoided by taking the cyclone dust collector as a gas-water separator, and a secondary dust removal effect is achieved; (2) the venturi scrubber and the cyclone dust collector belong to wet dust collectors, so that dried dust-containing airflow can be treated, high-humidity dust-containing airflow also can be treated, and particularly the device can be used for all-weather operation of the sweeper under the conditions such as rainy days or water deposition on pavement; (3) water is recycled by utilizing vacuum degree formed by the venturi scrubber, the energy consumption is reduced, and water consumption is reduced; and (4) the operation is simple, the dust removal efficiency is over 95 percent, and the environment protecting requirement is met.

All-weather wet dust removal device for sweeper and combined dust removal treatment method

The invention discloses a method and device for removal of atmospheric fine particles. Air is introduced into a reaction chamber, and ultrasonic atomization humidification is carried out to enable rapid growth of fine particles, a pulsed corona discharge device generates negative ions and free radicals to make fine particles charged, coagulation is accelerated and heterogeneous reaction is carriedout; an aerosol is further introduced into a spiral generator, under the action of a centrifugal force, liquid drops constantly entrain, dissolve and scour fine particles in the airflow, and accumulated liquid flows back to form a liquid film, the wet deposition process of atmospheric fine particles is strengthened continuously, and finally PM2.5 flows out from the lower end of the spiral generator along with the liquid drops. The method and device provided by the invention utilize the hygroscopic growth characteristics of atmospheric fine particles and the natural sedimentation process to remove atmospheric fine particles, are simple and efficient, not only can realize efficient removal of PM2.5 from the air, but also can purify formaldehyde and other gaseous pollutants in the air, and also have the functions of inactivating bacteria and viruses in the air, humidifying the air and the like.

Method and device for removal of atmospheric fine particles

A cyclone spray combination highly effective ash separator forms an integral body through a cyclone dust collector and a water dust scrubber, wherein the cyclone dust collector forms an integral body through a straight tube section (12) and a cone section (4), and the cyclone dust collector further comprises a smoke gas air inlet (3) arranged on the straight tube section and a discharging valve (5) arranged on the lower end of the cone section (4). The water dust scrubber comprises a spray tower body (2) connected with the upper end of the straight tube section of the cyclone dust collector, and the spray tower body is provided inside with a multi-stage water film ring (10), a spray ring (9), a spray pore plate (8), a water inlet pipe (1), a gas water separating body (7), a smoke gas outlet (3) and a dust-water outlet (11). Compared with the prior art, the cyclone spray combination highly effective ash separator of the utility model achieves compact structure, connectionless pipelines, small accommodation area, less consumptive material, low cost and convenient installment.

Zhu Zhengping

Papers

Cyclonic spray combined high-efficient dust separator