30results about How to "In line with the concept of green environmental protection development" patented technology

Disclosed are a polymer type phosphor-containing flame retardant, preparation method and application thereof, which belong to the field of chemical materials. The polymer type phosphor-containing flame retardant PNX is a compound shown in formula (1), wherein n is an integer of 5~8 and the molecular weight of the flame retardant is between 900 and 1400. The method for preparing the flame retardant PNX is as follows: reacting phosphorus oxychloride with ethylene glycol in a nitrogen environment through a chemical reaction shown in the reaction formula (1) to obtain a compound (2), then reacting the compound (2) with anhydrous ethanol through a chemical reaction shown in reaction formula (2) under the action of a catalyst aluminum chloride to produce the flame retardant PNX. The flame retardant PNX belongs to a halogen-free, phosphorous type flame retardant. It coincides with the national concept of green-environmentally-friendly development. The content of phosphor is as high as 18%~20%, and the flame retardant properties are excellent.

The invention discloses a catalyst spraying and immersion equipment, which comprises an upper casing and a lower casing. The upper part of the upper casing is fixedly installed with conduits and two sets of water inlet square pipes. The upper part of the upper casing is A booster pump is fixedly installed, and one end of the booster pump is fixedly connected to the outer end of the conduit, the inner bottom surface of the lower casing is fixedly installed with a water outlet pipe, and one end of the water outlet pipe is fixedly sleeved with a water spray box , and the lower part of the water spray box is provided with several groups of fixed through holes, and the interior of several groups of said fixed through holes is installed with I-shaped tubes, and the external ends of several groups of said I-shaped tubes are all provided with adjustable sealing plates , the insides of the built-in ends of the water inlet square pipes of the two groups are all slidably installed with scraping filter screens. Beneficial effects: the present invention adjusts the sealing plate, and through the setting of the adjusting sealing plate, there is no need to add multiple sets of electromagnetic valves to control the flow of liquid ejection, and at the same time, it can stop the flow of liquid in time, so that the spraying and immersion equipment used for catalysts conforms to the concept of green and environmental protection development.

The invention discloses a hydroxypiperazine type concrete glue reducer and a preparation method thereof. The concrete glue reducer is composed of the following substances by weight: 15-25% of reinforcing agent, 10-20% of fumaric acid, diethylene 8-15% of pentasodium triaminepentacarboxylate, 5-10% of nitrate, 3-8% of dispersant, 0.5-3% of initiator, and the balance of water. In the present invention, the piperazine polymer can promote the formation of ettringite crystals such as tricalcium aluminate in the concrete slurry, form an early skeleton, and promote the improvement of the strength of the concrete; the dispersant can fully disperse the fine particles of the cement, so that the utilization of the cement in the concrete is improved. Under the synergistic effect of each component, this glue reducer can significantly improve the early strength and late strength of concrete. In addition, the glue reducing agent can improve the frost resistance of concrete, so that the concrete can also exert its proper working performance in a low temperature environment.

The invention discloses an enameled wire painting equipment, which comprises a casing, a paint storage box and an isolation tube are fixedly installed inside the casing, and tapered mounting rings are fixedly installed at both ends of the paint storage box. Both ends of the isolation tube are sleeved with tapered mounting blocks, and the outer side walls of the casing are equipped with two sets of high-pressure air pumps and paint inlet pipes, and one end of the two sets of high-pressure air pumps is snap-fitted with an air guide tube One end of the two groups of air guide pipes and the two groups of paint inlet pipes runs through the outer side wall of the shell and the paint storage box, the interior of the two groups of paint inlet pipes is slidingly installed with anti-backflow plugs, and the isolation pipes A dividing blade is slidingly installed on the side wall, and a cleaning pipe is fixedly installed on the lower part of the shell. Beneficial effects: the invention uses the splitting blade, and through the set splitting blade, the operator can use his own gravity to cut the enameled wire without adding power equipment, which saves the waste of power resources and conforms to the concept of green and environmental protection development.

The invention discloses a grinding device for alumina production, comprising a casing, a bearing and a feed pipe are installed through the upper part of the casing, a motor is fixedly installed on the upper part of the casing, and an output end of the motor is clamped and installed with a transmission One end of the transmission shaft penetrates the bearing, a connecting sleeve is fixedly installed on the side of one end of the transmission shaft, and one end of the connecting sleeve is clamped and installed with a grinding roller, and two groups are fixedly installed on the inner side wall of the casing connecting plates, and the opposite ends of the two groups of the connecting plates are fixedly installed with clamps, and two sets of bolts are installed through the opposite faces of the two groups of the clamps. Beneficial effects: The present invention can automatically guide ungrind qualified alumina chips to the grinding range of the grinding roller through the return filter screen pipe and the set return filter screen pipe without adding a power mechanism, so that alumina production can be achieved. The use of grinding equipment is in line with the concept of green development.

The invention relates to the technical field of refractory materials for continuous casting, and relates to a preparation method of an environment-friendly high-slag-corrosion-resistance dry material,and the high-slag-corrosion-resistance dry material. The method comprises the following steps: waste zirconium-carbon slag line materials are recycled and smashed to obtain a regenerated zirconium-carbon slag line material; and 65-85 parts by weight of magnesia, 8-15 parts by weight of the regenerated zirconium-carbon slag line material, 1-5 parts by weight of light calcined alumina A powder, 5-13 parts by weight of a binding agent and 3-5 parts by weight of an additive are mixed to prepare the environment-friendly high-slag-corrosion-resistance dry material. The invention aims to provide thepreparation method of the environment-friendly dry material with high slag corrosion resistance, and the dry material with high slag corrosion resistance. The expensive zirconium oxide raw material is reasonably recycled, the high slag corrosion resistance of zirconium oxide is brought into full play, the casting service life of the continuous casting tundish is prolonged, the refractory materialconsumption cost per ton of steel is reduced, pollution of refractory materials to molten steel is reduced, and the casting blank quality is improved.

The invention belongs to the technical field of textile finishing processing, and specifically relates to a pure cotton active salt-free dyeing solution, a dyed pure cotton shell fabric using the purecotton active salt-free dyeing solution and a technology. The pure cotton active salt-free dyeing solution comprises the following components in concentrations: 0.5 to 80 g / L of active dye, an alkaline agent whose using amount is 55% to 65% of that of the active dye and is not lower than 9 g / L, NaOH whose using amount is 2.5% to 3.5% of that of the active dye and is not lower than 0.6 g / L, and the balance is water; the active dye is one or more of active yellow O, active red R and active blue B; the alkaline agent is SFA-01. The dyeing solution has good permeability for the pure cotton shellfabric, and can be used for dyeing under the condition without salt acceleration; the dyed pure cotton shell fabric is stable in quality, excellent in color fastness, colorful and plump in yarn-dyed weaving and excellent in comprehensive performance; according to the technology dyed by using the dyeing solution, surface dyeing can be removed effectively, the color fastness and washing fastness ofthe shell fabric are promoted, the COD value of wastewater discharge is reduced, and the technology is environmentally friendly and good in economic benefit.

The present invention relates to a kind of functionalized graphene, the raw material of described functionalized graphene comprises alkyl-p-phenylenediamine antioxidant and graphene oxide; The alkyl-p-phenylenediamine antioxidant is N,N' ‑Di-sec-butyl-p-phenylenediamine, N,N`‑bis(1,3‑dimethylbutyl)-p-phenylenediamine, N,N`‑bis(1,4‑dimethylpentyl) One or more of phenylenediamine, N,N`-diisooctyl-p-phenylenediamine, N,N`-bis(1-ethyl-3-methylpentyl)-p-phenylenediamine. The functionalized graphene provided by the invention is applied to the existing railway rubber backing plate, and a high-performance rubber backing plate with excellent mechanical properties, good aging performance and large resistance value can be prepared.

The invention discloses a dedusting and noise reduction device for dismantling and processing scrapped automobiles. The inner two sides and the top surface of the casing are fixedly installed with a fixed filter screen, the inner two sides and the top surface of the casing are provided with built-in grooves, and the interior of the three groups of the built-in grooves are installed with sound-absorbing rock wool boards, so Two sets of hinges are fixedly installed at the openings at both ends of the casing, and sealed doors are fixedly installed at one end of the two sets of hinges on the same side. Beneficial effects: The present invention can preliminarily classify parts according to size through the layered vertical plates, greatly reducing the workload of parts classification, and bringing convenience to the use of the dedusting and noise reduction device for the dismantling and processing of scrapped automobiles. By installing the electric dust collection structure, the dust removal work can be completed, so that the dust removal and noise reduction device for the dismantling and processing of scrapped automobiles conforms to the concept of green environmental protection development.

The invention discloses a method for extracting lignin by using a ternary deep eutectic solvent. The method comprises the steps of: mixing and reacting the raw material with a ternary deep eutectic solvent, cooling to room temperature after the reaction is completed, and obtaining a reaction product, adding the reaction product to absolute ethanol and stirring, washing with ethanol, filtering, concentrating, adding water, and standing , to obtain a precipitate containing lignin, filter, and dry to obtain lignin. The present invention provides a method for extracting lignin from straw by using a ternary deep eutectic solvent, which improves the extraction efficiency of lignin more effectively compared with a binary deep eutectic solvent, and achieves the maximum extraction efficiency within 4 hours The lignin purity is 84±1%, and the purity of the obtained lignin is relatively high, with the highest purity reaching 83%. The deep eutectic solvent and absolute ethanol can be recycled and reused during the extraction process. Problems such as pretreatment cost and environmental pollution are in line with the concept of green and environmental protection development.