5results about How to "Efficient purification effect" patented technology

The utility model relates to filter equipment technical field discloses a filter box of leakage prevention, including base, the base upper surface fixedly connected with filter drum, filter drum outer wall one side fixedly connected with air inlet pipe, air inlet pipe outer wall fixedly connected with sealed cavity no.

The utility model relates to the technical field of purification devices, and discloses a non-electric purification device which comprises a bottom tank, the bottom tank is installed inside the bottom end of a top tank in a threaded mode, and a water inlet pipe and a water outlet pipe are fixedly installed at the top end of the top tank respectively. According to the electroless purification device, in order to better carry out electroless purification, the purification assembly is arranged, when water is injected into the top tank through the water inlet pipe, the water is firstly filtered for the first time through the top filter frame and the top filter screen, and then is filtered again through the middle filter frame and the middle filter screen; then the purposes of softening water quality and the like are achieved through a bottom end filter frame and a bottom end filter screen, meanwhile, a reverse osmosis membrane can intercept bacteria, viruses, heavy metal ions, salts and other impurities in water, so that the efficient purification effect is achieved, and then the purified water can be further filtered in cooperation with a vertical pipe through cooperation with a threaded sleeve, a threaded ring, an inclined frame and a filter bag; and during multi-stage filtration, the structure is more compact, and the mounting space is saved.

The invention discloses a slurry purifying and filtering device and system.The liquid inlet end and the liquid outlet end of the filtering device are connected with a first two-way fluid driving unit and a second two-way fluid driving unit respectively, the filtering device comprises a thickening body, supporting nets, filtering membranes, convex edges and a cylinder, and the multiple layers of supporting nets and filtering membranes are arranged in a space defined by the thickening body, the convex edges and the cylinder; one end of the cylinder is open and fixedly connected with the convex edge in a threaded mode, the convex edge is connected with the thickened body, the supporting net is connected with the convex edge and divides a cavity formed by the thickened body and the cylinder into an inner cavity and an outer cavity, a liquid flow channel is formed in the thickened body and connected with the inner cavity, and an anti-blocking gap is reserved. The filtering system comprises the filtering device, a bidirectional fluid driving module and an ultrasonic enhanced backwashing module. Through the multi-layer nested structure and standardized interface design of the quick-release filtering functional component, quick switching and free matching of the thickness degree of the filter screen are realized, and the filter screen can be flexibly connected in series, is adaptive to purification scenes of different working conditions and is high in purification precision.

The application relates to the field of groundwater pollution remediation, in particular to an oxidation-reduction coupled permeable reaction wall and an evaluation method thereof. The oxidation-reduction coupled permeable reaction wall comprises a cover plate, a cement outer wall body, water stop plates, a reduction chamber, an oxidation chamber and a mixing chamber. The three water stop plates are alternately and vertically fixed on the cement outer wall body and the top cover plate respectively, and the reduction chamber, the oxidation chamber and the mixing chamber are separated by the water stop plates. The reduction chamber and the mixing chamber are communicated by an upper pipeline, and the oxidation chamber and the mixing chamber are communicated by a lower pipeline. The reduction chamber is sequentially provided with a detachable coarse quartz sand plate, a fine quartz sand plate and an active reaction plate from bottom to top. Through the synergistic effect of reduction-oxidation-adsorption, the oxidation-reduction coupled permeable reaction wall can effectively deal with the composite contaminated groundwater to realize complete mineralization of organic pollutants, and has the advantages of high remediation efficiency and strong applicability.

The invention relates to the technical field of melamine paper preparation, in particular to a preparation method of melamine paper capable of efficiently generating negative oxygen ions. Comprising the following steps: obtaining raw materials of a melamine impregnation formula, putting the raw materials into mixing equipment, and uniformly stirring and mixing to prepare a functional melamine impregnation solution; the preparation method comprises the following steps: humidifying special base paper for melamine paper, feeding the humidified base paper into a gum dipping tank containing gum dipping liquid at a constant speed, and curing and drying the gum-dipped base paper to obtain primary melamine paper; carrying out corona treatment on the primarily-cooled primarily-prepared melamine paper by using corona equipment to prepare melamine paper capable of efficiently generating negative oxygen ions; by means of the mode, the effects that the technology adaptability is high, and the high anion induction amount and efficient formaldehyde purification can be synchronously achieved are achieved.