2results about How to "Improve the reunion effect" patented technology

The application discloses a special dust-settling agent under a tunnel construction environment and a preparation method thereof. The application relates to the field of dust-settling agent preparation under a tunnel construction environment, and solves the problems of high preparation cost, difficulty in large-scale production and limited dust-settling performance of the existing dust-settling agent preparation method. In the application, polyvinyl alcohol, guar gum and itaconic acid are subjected to graft copolymerization reaction under nitrogen protection at 60 DEG C-70 DEG C, N,N'-methylene bisacrylamide crosslinking agent is added to form a chemical crosslinking network, and then the chemical crosslinking network is compounded with a surfactant to obtain the dust-settling agent. The dust-settling agent does not need low-temperature freezing and thawing treatment, can significantly reduce equipment energy consumption and production cost, is convenient for industrialized production, has good film-forming property, moderate viscosity and long water-retention duration, and can efficiently inhibit diffusion of dust generated in tunnel construction.

The application discloses a kind of smoke purification equipment to the air flow impact, it is related to smoke purification technical field, including purification device ontology;Air inlet assembly is arranged on the lateral wall of purification device ontology, and multiple sets of air inlet assembly are oppositely arranged;Air inlet assembly includes the fixed unit being arranged outside purification device ontology and the mobile unit being slidably arranged on the lateral wall of purification device ontology;The inside of purification device ontology is correspondingly provided with a set of filter assembly on the upper side and the lower side of air inlet assembly;Filter assembly is connected on support frame by first elastic unit, and support frame is arranged in the inside of purification device ontology by second elastic unit;Driving assembly is arranged between mobile unit and support frame, and when support frame is away from mobile unit, support frame drives multiple sets of mobile unit to be close to each other by driving assembly;The application enhances the breaking and agglomeration capacity of particulate matter under high load state of flue gas, to ensure that the equipment always operates in optimum condition.