40results about How to "Reduce production handling costs" patented technology

The invention provides an ecological treatment system and method for cold-rolling reverse osmosis strong brine. The treatment system comprises a water inflow pipe, a water inflow tank, a water distributing partition plate, a water inflow gravel commutating zone, fly ash ceramsite filler, manganese sand filler, a sand bed layer, an anti-seepage layer, modified montmorillonite filler, covering soil, plants, a water outflow gravel commutating zone, a water outflow tank, a water outflow liquid level control part and a water outflow pipe. The ecological treatment system is used for treating the reverse osmosis strong brine, one-time investment is low, running and operation are easy, and production and treatment cost is low; after the cold-rolling reverse osmosis strong brine is treated through the ecological treatment system, COD and total nitrogen of outflow water are lower than the national emission standard, various kinds of heavy metal in the strong brine can also be efficiently removed, and the ecological treatment system is an environment-friendly steel and ion waste water treatment technology.

The invention discloses a method for removing dissolved organic matter and heavy metal ions in electroplating waste water. The method involves a pH value regulation tank and a filler tower capable of effectively removing dissolved organic matter and heavy metal ions. Modified kieselguhr and activated carbon serve as double-layer filler of the filler tower, and after being adsorbed by the filler, electroplating waste water reaches the national emission standard. The method is an environment-friendly green waste water treatment process which is high in organic matter and metal heavy ion removal rate, low in one-time investment, easy to run and operate and low in production treatment cost.

The invention discloses a method for destroying the water absorbency of sodium polyacrylate resin. The method comprises the following steps: (1) weighing inorganic salt containing CaCl2, and preparing a 0.05-5% solution from the inorganic salt; (2) weighing a sodium polyacrylate resin solid, adding a 0.1-6% H2SO4 solution according to the solid-to-liquid ratio of (1: 100) to (1: 500), and filtering, so as to obtain a pretreated sodium polyacrylate resin solid substance; (3) adding the resin solid substance into an inorganic salt mixed solution according to the solid-to-liquid ratio of (1: 50) to (1: 300), and filtering, thereby obtaining sodium polyacrylate resin with lowered water absorbency. The invention further discloses a method for recovering articles for physiological hygiene. The methods have the good effects that the water absorbency of the sodium polyacrylate resin is lowered to about 1% of the original water absorbency, and the problem of water resource waste during the recovery of waste / old water absorbing articles is solved.

The invention provides a method for producing three-dimensional network solidification and sealing carbonaceous ceramsite by hot dipping of leather sludge. Then put it into a cracking furnace, and thermally crack it in isolation from air at 300-800°C until no cracking gas is produced, forming carbonaceous ceramsite with a large number of micropores on the surface; then impregnated in the impregnated material, using carbon The temperature of the ceramsite itself melts the impregnated material, infiltrates the carbonaceous ceramsite and enters the micropores of the carbonaceous ceramsite for heavy metal fixation and three-dimensional network sealing, and natural cooling, that is, the finished three-dimensional network is solidified and sealed carbonaceous ceramsite; The impregnating material is polymer resin. The cured metal ions of the present invention are basically unable to dissolve and have high safety. At the same time, the carbonaceous ceramsite has certain hydrophobicity, strong weather resistance and toughness, and has high application value in light building materials, water resistance, heat insulation materials and the like.

A cold-formed hot-rolled pickling high-strength steel antirust solution, its preparation method and application, relate to the technical field of antirust treatment in hot rolling, and the antirust solution includes microemulsion, phosphoric acid mixed solution and dimethyldichlorosilane , wherein, the microemulsion uses propylene glycol as a solvent and contains glucose and fatty acid methyl ester; the phosphoric acid mixed solution uses 0.5 to 2wt.% phosphoric acid solution as a solvent and contains lauric acid monoester, palmitic acid monoester and stearic acid triester. The anti-rust solution can be used for long-term rust prevention of cold-formed hot-rolled pickled high-strength steel. The cold-formed hot-rolled pickled high-strength steel after treatment has good mechanical properties and good anti-rust effect. Simple, low production and processing costs, belongs to the steel green environmental protection production process, has good social and environmental benefits.

The invention discloses a method for comprehensively treating vanadium-containing slag and titanium dioxide waste acid. The flue in the white powder sprays the acid-containing wastewater produced in each titanium dioxide production process; 2) The premixed liquid and the waste acid are mixed and stirred to react to form a slurry. After the reaction is completed, the solid-liquid separation is completed, and the obtained solid is acidic high-sulfur gray-white Gypsum slag; the liquid is a vanadium-containing solution; the waste acid comes from the waste sulfuric acid that is difficult to reuse after acidolysis in the titanium dioxide industry by the sulfuric acid method; 3) Add iron powder to the obtained vanadium-containing solution for stirring and reduction, and then add liquid alkali to react The pH of the liquid is 3.8-4.5, and precipitation is performed to obtain a qualified slurry, and a vanadium-containing filter cake is obtained after solid-liquid separation. Through the method provided by the invention, vanadium-containing slag and titanium dioxide waste acid can be effectively treated, comprehensive recovery and utilization thereof can be realized, and the treatment cost can be reduced, so that the slag can be used for industrial-scale treatment.

The invention discloses a method used for improving cement raw material grindability and reducing TOC discharge with kitchen waste. According to the method, the kitchen waste collected from municipal solid waste is mixed with raw materials which are used for preparing cement raw material; and an obtained mixture is delivered into a flour mill for grinding, wherein the outlet of the flour mill is provided with a gamma-Metric analyzer used for real-time monitoring on chemical components of the discharged cement raw material. According to the method, kitchen waste is added into a raw material grinding system so as to improve grindability of the cement raw material, and reduce power consumption of the flour mill; ash obtained via combustion of the kitchen waste can be used for replacing clay raw material; TOC discharge of a cement production system is reduced at the same time; a large amount of organic substances with relatively heat value are obtained via drying of the kitchen waste, and are burnt in a preheater so as to generate heat energy, so that the temperature of waste gas is increased, and waste heat power generation is increased; the kitchen waste is subjected to low-temperature drying grinding, a large amount of residual heat energy obtained via cerement plant waste heat power generation is recycled, a kitchen waste dewatering problem is solved, and processing cost of the kitchen waste is reduced.

The invention discloses a method for preparing an aluminum electrolytic cell TiB2 cathode coating by adopting a plasma spraying technology. The method comprises the following steps: adding dried titanium boride powder, alumina powder and graphite powder in a high-temperature roasting furnace according to a certain ratio to form eutectic, crushing and ball-milling the eutectic, further performing ultrafine grinding on the eutectic, adding the ground the eutectic in a hopper of a plasma spraying device, starting a main control and mechanical arm of the spraying device, and controlling the distance between a nozzle and a substrate and the movement speed to form a TiB2 cathode coating composite on the surface of the aluminum electrolytic cell cathode carbon block. By adopting the method, the thickness of the TiB2 composite cathode coating in the industrial aluminum electrolytic cell can be effectively controlled, the industrial voltage of the aluminum electrolytic cell and the probability of secondary reactions can be reduced, the current efficiency can be effectively increased, the energy consumption can be reduced, the service life of the industrial aluminum electrolytic cell can be prolonged, the aluminum electrolysis production can be improved and the quality of aluminum products can be increased.