33results about How to "Contribute to recycling" patented technology

The invention discloses a preparation method of high-porosity silicon-carbide porous ceramics. According to the preparation method, 60 to 80% of silicon-carbide powder, 10% of boron carbide, 5 to 25% of iron oxide and 5% of polyvinyl alcohol by weight are adopted as raw materials, and the steps of mixing, spray granulation, extrusion forming, drying and sintering are sequentially carried out, wherein the technical conditions for sintering are as follows: a dried biscuit is sintered for 10 to 15 hours at 2100 to 2200 DEG C through pressureless sintering technology so as to obtain the high-porosity silicon-carbide porous ceramics. The silicon-carbide porous ceramics prepared by the method disclosed by the invention has the characteristics of controllable aperture size, high apparent porosity, and relatively large specific surface area, and strength of the silicon-carbide porous ceramics meets the application requirement.

The invention provides a magnetic composite photocatalyst Ppy@CdS/ZnFe2O4 and a preparation method and application thereof. The preparation method comprises the following steps of ZnFe2O4 preparation, CdS/ZnFe2O4 preparation and Ppy@CdS/ZnFe2O4 preparation. The composite photocatalyst Ppy@CdS/ZnFe2O4 established through a molecular imprinting technology can form a Z-type heterojunction due to printing layer selectivity and CdS and ZnFe2O4 matching, so that a composite photocatalytic material prepared by the magnetic composite photocatalyst has certain selectivity and catalytic activity.

The invention provides a centrifugal separation device for separating titanium resources from an titanium-containing material and a processing method of the centrifugal separation device. The centrifugal separation device comprise a centrifugal power transmission system and a centrifuge drum; the central axis part of one end of the centrifuge drum is connected with the centrifugal power transmission system, and an opening covered with a cover plate is formed in the other end of the centrifuge drum; and a feeding opening is formed. According to the device and the method, in the process that a molten titanium-containing material is cooled to 1300 DEG C from 1600 DEG C, titanium in the titanium-containing material is controlled to be enriched in a black-titanium-stone high-titanium crystal phase, meanwhile, the precipitated black titanium stone is enriched by utilizing the action of centrifugal force, and subsequent separation is carried out to obtain high-grade titanium slag with the TiO2 grade of more than 76%, so that the titanium extraction upgrading of the low-grade titanium-containing material can be realized, and a new idea and method are provided for comprehensive utilizationof vanadium titano-magnetite.

The invention relates to a multifunctional hidden-type garbage storage and transportation system. The multifunctional hidden-type garbage storage and transportation system comprises a protective shellburied underground, a garbage can device, a transportation vehicle, a carton recycling and storage device and a PLC control cabinet. The garbage can device comprises a garbage can and a turnover cancover; the garbage can comprises a can body and universal wheels; the turnover can cover comprises a cover body and a hollow putting-in cover; a putting-in opening is formed in the putting-in cover; and a lifting containing cavity is embedded into the top face of the protective shell, and the garbage can is placed in the lifting containing cavity in the mode of being capable of linearly moving upand down in a reciprocating mode. The transportation vehicle comprises a cab, a fixing frame plate and a pulling device, and the pulling device comprises a pulling plate and a second lifting driving device. The carton recycling and storage device comprises a storing box body and an extruding plate. The garbage of the multifunctional hidden-type garbage storage and transportation system can is hidden underground, the attractive effect is achieved, and the peculiar smell is not likely to be emitted; through the transportation vehicle, the garbage can can be efficiently transported; and through the carton recycling and storage device, independent storage spaces, different from garbage, are provided for cartons and bottles which can be recycled, and thus recycling is facilitated.

The invention provides conductive silicone rubber for clothes measuring, application of the conductive silicone rubber and a preparation method for obtaining the conductive silicone rubber. The conductive silicone rubber is prepared from at least the following raw materials: 100 parts by mass of silicone rubber, 5-80 parts by mass of carbon black, 2-30 parts by mass of a catalyst and 1-30 parts bymass of a cross-linking agent. The conductive silicone rubber has the following beneficial effects: the preparation process is simple and efficient, a low-boiling organic solvent is adopted and thusis conducive to being recycled, and energy-saving and environment-friendly effects can be achieved; the conductive performance of the prepared conductive silicone rubber is good, and has a good linearrelation with a stretched length; the conductive silicone rubber has a relatively low elastic coefficient, is suitable for being embedded in clothes, and does not influence the wearing experience ofpeople.

The invention discloses a pipe fitting magnetic pulse impact forming device, relates to a metal material machining forming device, and aims to overcome the problems that existing magnetic pulse forming precision is not high and single-time discharge forming is difficult to realize. The pipe fitting magnetic pulse impact forming device comprises a die unit, a hydraulic unit, a compression unit andan impact unit, wherein the die unit comprises an upper die and a lower die; the upper die is provided with an upper die through hole with a downward opening; the lower die is provided with a lower die through hole with an upward opening; the upper die is positioned above the lower die; a pipe fitting to be machined is transversely placed between the upper die and the lower die; the hydraulic unitcommunicates with the pipe fitting to be machined to form a circulating passage which is used for injecting or recovering viscous mediums into the pipe fitting to be machined; the compression unit comprises a first piston unit and a second piston unit, and the first piston unit and the second piston unit are respectively positioned at the two ends of the pipe fitting to be machined and used for providing impact force along the axial direction of the pipe fitting to be machined inside the pipe fitting to be machined; and the impact unit is used for providing impact power of the compression unit.

The invention discloses mixed dust removal equipment based on a powder coating for plastic processing, and relates to the technical field of powder coating production and processing. The mixed dust removal equipment based on the powder coating for plastic processing comprises a machine body, wherein a dust inlet pipe is connected to the middle of the top end of the machine body, and a dust suctionfan is arranged on one side of the top of the machine body; a first discharging valve is connected to one side of the bottom end of the machine body, and a screening plate is hinged to the middle ofthe interior of the machine body; and a rotating drum is movably arranged inside the machine body and located above the screening plate, and six blade plates distributed in an annular array mode are fixed to the outer circumferential face of the rotating drum. According to the mixed dust removal equipment based on the powder coating for plastic processing, through the arrangement of the screeningplate, screening holes and an electric push rod, floating dust can be screened, so that the powder coating is conveniently recovered in a classified mode, then the recycling of the powder coating is facilitated, the resource utilization rate is effectively improved, the production cost is greatly reduced, and the production benefit is favorably increased.

The invention belongs to the field of carotenoids, and particularly relates to a new synthesis method of epsilon-carotene. The method comprises the following steps: dissolving 2,7-dimethyl-2,4,6-octanetriene-1,8-bisphosphonate in an anhydrous solvent, adding an alkali solution under the protection of nitrogen, and performing stirring to obtain a reaction solution 1; dropwise adding 3-methyl-5-(2,6,6-trimethyl-2-cyclohexane-1-yl)-2,4-pentadienal dissolved in the anhydrous solvent to the reaction solution 1, dropwise adding deionized water after the above dropwise addition reaction is completed,and performing uniform stirring to obtain a reaction solution 2; performing reduced pressure distillation on the reaction solution 2 to remove the organic solvent in order to obtain an aqueous solution, performing extraction by using the organic solvent, drying the obtained extract by anhydrous magnesium sulfate, and filtering the dried extract to obtain an organic solution; and distilling off the organic solvent in the organic solution, adding an alcohol solvent, performing a refluxing reaction under the protection of nitrogen, and cooling and filtering the obtained reaction solution to obtain the epsilon-carotene. The preparation method has the characteristics of simple process route, convenience in operation, high yield, low cost, recyclable byproducts and good industrialization values.

The invention discloses a method for promoting synthesis and regeneration of a bimetallic catalyst by utilizing a coordination effect of chlorine. Interaction among different noble metal ions is enhanced by utilizing the coordination effect of chlorine to form a bimetallic alloy, and the catalytic oxidation activity of the catalyst is improved by virtue of the synergistic effect of two noble metal ions; and meanwhile, the coordination effect of chlorine can be utilized to re-expose the active noble metal component which is subjected to high-temperature thermal reconstruction embedding, so that the catalytic oxidation activity of the catalyst material is partially recovered, the recycling of the noble metal catalyst material is facilitated, and the application cost of the catalyst material is reduced. The bimetallic catalyst prepared by the method disclosed by the invention can obviously improve the catalytic oxidation degradation activity on VOCs (Volatile Organic Compounds) such as propane, chlorobenzene and the like, and is beneficial to reducing the dependence on rare noble metal catalysts such as Pt, Pd, Rh and the like, so that the use cost of a purification material is reduced.

The present invention discloses a hydrogen production apparatus, which comprises: a hydrogen generator provided with a steam input pipe and a hydrogen discharge pipe and internally provided with a hydrogen generation space; a hydrogen generator, which is sleeved with the steam generation device and comprises: a heating part, wherein at least one heating pipe and a steam heating cavity are arranged thereon, the bottom and/or the top of the heating pipe are/is detachably connected, a combustion catalyst is arranged in the heating pipe, a tail gas inlet is formed in one end of the heating pipe, and a waste gas outlet is formed in the other end of the heating pipe; a steam generating device which is communicated with the steam input pipe through the steam discharge pipe; a liquid leading-in pipe which is communicated with the bottom and/or the side surface of the steam heating cavity; and an overheating unit which is arranged at the end part of the heating part and comprises at least one steam straight pipe, wherein one end of the steam straight pipe is communicated with the steam heating cavity, and the other end of the steam straight pipe is communicated with the steam discharge pipe. The invention solves the problems that steam in the steam coil is large in flowing resistance and low in heating efficiency.

A device for assembling printed circuit boards, whose particularity consists of the fact that it comprises a first supporting element and a second supporting element that have a substantially flat body, from one face of which first and second coupling means protrude transversely for coupling, respectively, to at least one first board and one second board, the first and second supporting elements being suitable to be arranged along two corresponding edges of the first and second boards and to be coupled to them so as to support them and stack them in a mutually spaced arrangement, the first and second supporting elements being structurally substantially identical to each other.

The invention discloses a production equipment of aluminum foil for medical capsules, which comprises a U-shaped base, and the bottom of the inner wall on both sides of the U-shaped base is provided with roller shaft installation holes, and the inner walls of the two roller shaft installation holes are connected with the same roller shaft through bearings. Aluminum foil roller, the outer wall of one side of the U-shaped base is fixed with a second motor by screws, and the output shaft of the second motor is fixed on the outer wall of one end of the aluminum foil roller by screws, and the outer walls of both sides of the U-shaped base are provided with chutes. In addition, a first slider and a second slider are slidably connected to the inner walls of the two chute respectively, and a hydraulic cylinder is fixed to the outer wall of one side of the U-shaped base by screws. The present invention cooperates with the sliding block of the chute, uses the hydraulic cylinder to control the cutter to move up and down, can flexibly control the height of the cutter, loosens or tightens the knife holder through the fastening screw, so that the knife holder can slide or be fixed along the knife holder axis, The position of the two cutters can be easily adjusted, and the graduation marks help to precisely control the position of the cutters.

The invention discloses a carbide self-supporting electro-catalysis electrode with a waste plant fiber textile fabric as a matrix and a preparation method of the carbide self-supporting electro-catalysis electrode. The electro-catalysis electrode is used for electro-catalysis hydrogen production, and comprises a carbon substrate and a transition metal carbide, wherein the transition metal carbide grows on the carbon substrate by taking the carbon substrate as a carbon source, and the carbon substrate comprises a waste plant fiber fabric. According to the invention, a waste plant fiber fabric and transition metal powder are adopted to synthesize a transition metal carbide, wherein the adopted waste plant fiber fabric is beneficial to recycling of waste clothes and promotion of green development, and the cost of the transition metal powder is much lower than that of precious metal; and the carbide prepared by adopting the waste plant fiber fabric as the carbon substrate not only has better electro-catalytic performance, but also serves as an electro-catalytic electrode, so that the preparation cost is reduced, and the negative influence on the electro-catalytic performance caused by doping of an adhesive is avoided.

The invention belongs to the technical field of biomass energy utilization, and particularly relates to a method for directionally producing aromatic hydrocarbon-rich bio-oil and hydrogen-rich biomass gas. The invention provides a method for applying chestnut shells as a catalyst to conversion of hydrogen-rich wastes, which comprises the following steps: firstly, crushing the chestnut shells, removing impurities, conducting drying, conducting impregnating with phosphoric acid, then carrying out high-temperature rapid pyrolysis to obtain a solid product, and conducting washing, drying and cooling to obtain porous biochar; and directly using the prepared porous biochar as a catalyst for catalytic pyrolysis of hydrogen-rich wastes, and preparing aromatic hydrocarbon-rich bio-oil and hydrogen-rich biogas directionally at the same time. The method has the advantages of high efficiency, simplicity, greenness and environmental protection, and is suitable for large-scale popularization and application.