7results about How to "Solve the pollution problem" patented technology

The invention discloses a surface cleaning device with good decontamination effect, comprising a floor brush with a roller brush, the floor brush is provided with a decontamination device abutting against the roller brush, the decontamination device comprises a scraping piece, a combing piece located below the scraping piece, the combing piece is provided with a plurality of comb teeth and a connecting portion extending from the comb teeth to the lower surface of the scraping piece, the connecting portion abuts against the lower surface of the scraping piece, the comb teeth and the connecting portion form a front combing surface, the front combing surface abuts against the roller brush, the scraping piece extends in the direction of the roller brush over the front combing surface, the liquid flow scraped by the scraping piece forms a filling area between the connecting portion and the lower surface of the scraping piece, the liquid flow in the filling area gathers and increases pressure to flush the gap between the comb teeth. The surface cleaning device not only has a good effect in treating general garbage, but also does not leave entangled objects such as hair on the roller brush, does not require customers to manually clean the roller brush, has high dirt suction efficiency, good dirt suction effect, is more intelligent and humane, and has a good customer experience.

The invention provides a method for recycling solid waste containing calcium sulfate, magnesium element and rare earth elements, which comprises the following steps: firstly, separating the magnesium element from the solid waste through carbonization, then separating the rare earth elements from carbonized slag by adopting a rare earth separating agent, and then separating calcium sulfate and calcium carbonate through a solid-solid separator; or the magnesium element and the rare earth element are separated from the solid waste through a rare earth separating agent and carbonization, then the magnesium element is separated from the solid waste through pyrolysis, and the calcium sulfate and the calcium carbonate are separated through a solid-solid separator. The method is low in cost, simple and easy to implement, high in magnesium yield and capable of efficiently and comprehensively recycling waste residues, and has industrial application value.

The invention discloses a waste lithium battery black powder crushing and sorting device and a recovery process in the technical field of waste lithium battery black powder recovery, and the waste lithium battery black powder crushing and sorting device comprises a feeding unit, an electrode material dissociation unit and a sorting and enriching unit which are sequentially arranged along the material flow direction, comprising an active material collection system, a metal current collector separation system and an electrode active material purification system, and inert gas protection and temperature monitoring are introduced in the core link of crushing and dissociation, so that the risk of combustion explosion is eradicated fundamentally, the chemical stability of an electrode material is guaranteed, and the service life of the electrode material is prolonged. Secondly, shearing and crushing are adopted to optimize the dissociation effect, pneumatic separation, eddy current and magnetic separation multi-stage and precise separation technologies are combined, a returned material crushing closed circuit is innovatively introduced, the black powder collection rate and the separation purity and total recovery rate of copper and aluminum metal are greatly improved, and finally, the recovery rate of the copper and aluminum metal is increased. All the units are integrated into a continuous automatic system, and maximum utilization of resources is achieved.

This invention relates to the field of pentaerythritol mother liquor recovery technology, specifically disclosing a process and system for separating pentaerythritol and sodium formate from pentaerythritol mother liquor, including step S1: adjusting the pH of the pentaerythritol synthesis mother liquor to 6.5-7.5, and decolorizing it by activated carbon adsorption; step S2: concentrating the pretreated mother liquor to a specific gravity of 1.25-1.35 g / cm³. 3 The process involves temperature-controlled crystallization followed by centrifugation to obtain crude pentaerythritol crystals and centrifugal mother liquor. Step S3: Using sulfonic acid-based cation exchange resin as the stationary phase and 10-30% ethanol aqueous solution as the mobile phase, the centrifugal mother liquor is continuously separated to obtain a high-purity sodium formate solution and a pentaerythritol enriched solution.

The application discloses a sludge anaerobic acid production strengthening method based on synergistic degradation of melanoid-like substances by thermal hydrolysis and potassium permanganate, which comprises the following steps: (1) screening and removing impurities from sludge, and then performing gravity sedimentation and concentration; (2) thermal hydrolysis treatment: high-temperature and high-pressure treatment, pressure relief and cooling; (3) adding potassium permanganate for oxidation, and combining with ultrasonic dispersion; (4) anaerobic fermentation: inoculating active sludge, and controlling fermentation conditions; and (5) separating and extracting short-chain fatty acids. The application realizes the synergistic effect of thermal hydrolysis and potassium permanganate, targets the degradation of melanoid-like substances generated in the thermal hydrolysis process, eliminates the inhibition of the melanoid-like substances on anaerobic microorganisms, and promotes the efficient dissolution of organic matters in sludge. The nano manganese dioxide generated by potassium permanganate oxidation serves as an electron transfer medium, further strengthens the metabolic activity of acid-producing bacteria, and the pickling recovery rate is greater than or equal to 90%. The method makes the yield of short-chain fatty acids increase by 65% (up to 456 mg / g VS), has high efficiency and environmental protection, and provides an innovative solution for sludge resource treatment.

The invention provides a glass crushing device, which is used for crushing and removing glass on a photovoltaic panel, and comprises a glass crusher and a dust recycling machine, the glass crusher comprises a crushing box body, a crushed glass conveying belt arranged in the crushing box body, a supporting plate arranged below the crushed glass conveying belt, a crushing assembly used for crushing glass, an inclined plate arranged below the supporting plate and a protective cover arranged on the crushing box body, and a glass outlet is formed in the crushing box body. The lower end of the inclined plate protrudes out of the crushing box body from the glass outlet, the protective cover covers the glass outlet, and the dust recycling machine is communicated with the protective cover to suck dust. According to the glass breaking device, efficient and uniform glass breaking is achieved through cooperation of multiple components, the glass removal rate is increased, loss is reduced, glass residues are guided smoothly and prevented from being accumulated, closed-loop treatment is formed by the protective cover and the dust recycling machine, and the dust pollution problem is solved.

This invention discloses a method for co-processing waste incineration fly ash with hot blast furnace slag, relating to the field of hazardous waste disposal and utilization. The proposed method involves controlling the amount of waste incineration fly ash added and using a flux to lower the melting temperature. The fly ash is mixed with boron oxide, crushed, and granulated. This granulation is then simultaneously fed with freshly extruded molten blast furnace slag into a fly ash melting tank, reacted for a certain period, and then water-quenched to prepare water-quenched slag. The waste heat of the hot blast furnace slag is used for high-temperature treatment of the waste incineration fly ash. The high Ca, Si, and Al content of the blast furnace slag has an excellent effect on fixing heavy metal components in the fly ash, thereby immobilizing these heavy metals into the water-quenched slag. This method fully utilizes the valuable components in solid waste, increases the added value of solid waste products, and broadens the utilization pathways of waste incineration fly ash.