4results about How to "Solve the pollution problem" patented technology

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.