48results about How to "Improve environmental protection" patented technology

The invention discloses a preparation method and application of sulfur nano-particle dispersion liquid. The method is mainly characterized in that redox reaction of hydrogen sulfide and sulfur dioxide is carried out in a solution phase, and the solution phase is driven through an external force in a reaction process, so that the solution phase is at a stirring state, and the hydrogen sulfide and the sulfur dioxide are fully and uniformly mixed in the solution phase for reaction. Through controlling the reaction parameters of the method, the sulfur nano-particle dispersion liquid with small size and uniformity can be prepared. Sulfur nano-particles can stably exist in the solution phase and are conveniently adopted as sulfur active substances for a secondary electric power supply technology (a lithium-sulfur battery and the like), and the electrochemical performance is good.

The invention discloses a preparation method for nanocellulose enhanced bio-based nano rubber latex. The method comprises the steps of firstly performing enzymolysis, chemical oxidation pre-treatment and mechanical treatment on starch and plant cellulose fibers as raw materials to obtain nanocrystalline starch and nanocellulose; secondly mixing the nanocrystalline starch and the nanocellulose with natural non-grain degraded starch to prepare a uniform dispersed mixed solution, and performing activation modification treatment; thirdly adding an initiator to the mixed solution for initiating an emulsion polymerization reaction of double-bond monomers, and finally preparing a nanocellulose, nanocrystalline starch and non-grain degraded starch grafted copolymer, namely, the nanocellulose enhanced bio-based nano rubber latex. The nanocellulose and the nanocrystalline starch contained in the bio-based nano rubber latex achieve a remarkable enhancement effect for adhesion of rubber latex; and the bio-based nano rubber latex has the advantages of environmental protection, safety, sustainability and the like, and can be widely applied to the fields of papermaking, spinning, packaging, daily chemicals, building materials and the like.

The invention provides casting ceramsite and a preparation method and application thereof, and relates to the technical field of casting. The casting ceramsite is mainly prepared from bauxite, bauxiteclinker, kaolin and composite additives, the particle size distribution range of the casting ceramsite is 0.106-0.4 mm, and the refractoriness is 1,790-1,900 DEG C. The casting ceramsite has the advantages of high temperature resistance, small particle size, uniform particle shape, high strength, low thermal expansion rate, strong recyclability and the like; not only can ceramic foundry sand be replaced by the casting ceramsite for application in the field of metallurgical casting to meet the casting needs, but also the casting cost can be effectively reduced.

The invention relates to glass with a printing ink layer and a preparation method thereof, and belongs to the technical field of glass silk-screen printing ink. The preparation method comprises the following steps: carrying out pretreatment: taking a glass substrate and polishing the glass substrate; removing ions on the surface of the glass substrate; carrying out primary silk-screen printing: printing a printing ink material on the surface of the glass substrate through a silk-screen printing method to obtain a first printing ink layer; carrying out primary curing: curing glass with the first printing ink layer for 15-25 minutes at a temperature of 200-250 DEG C; carrying out secondary silk-screen printing: printing the printing ink material on the surface of the first printing ink layer through the silk-screen printing method to form a second printing ink layer overlapped with the first printing ink layer; and carrying out secondary curing: curing the glass with the first printing ink layer and the second printing ink layer for 15-20 minutes at a temperature of 200-250 DEG C, and curing for 20-30 minutes at a temperature of 550-680 DEG C, thereby obtaining the glass with the printing ink layer. The glass prepared by adopting the method is firm in combination of the printing ink layer, and can improve the problem that the printing ink layer is damaged while being repeatedly rubbed or used in environments with different temperatures and humidity.

The invention relates to a method for preparing chemical fiber pulp, belonging to the field of chemical fiber pulp manufacturing in the spinning industry. The invention aims at solving the problems that a cooking additive cannot be used for cooking chemical fiber pulp in the traditional cooking technology and the traditional cooking technology is not environment-friendly and the like, and provides a method for preparing chemical fiber pulp by using an environment-friendly compound cooking additive. The method comprises the processes of opening cotton, preparing the additive, cooking and the like; the method can be used for emulsifying and removing wax, protein and fat in the cooking process of the chemical fiber pulp and has the advantages of improving the osmosis and dispersion of medicine liquid during cooking, controlling the decomposition speed of the cellulose, improving the alpha cellulose content, selectively removing a chromophoric group, improving half-stuff whiteness and bleachability, reducing LCC (Lignin-Carbohydrate Complex) and others, improving the chemical reaction performance and effectively lowering the raw material consumption and reducing the COD (Chemical Oxygen Demand), chroma and other indexes of the spent liquid during cooking.

The invention provides a water-based eutectic solvent, a preparation method thereof and an oil extraction and desulfurization method, and belongs to the technical field of desulfurization. A hydrogenbond acceptor of the water-based eutectic solvent provided by the invention is a quaternary ammonium salt and/or a quaternary phosphonium salt, a hydrogen bond donor is water, and an organic solvent is used as the hydrogen bond donor compared with a conventional eutectic solvent. The water-based eutectic solvent provided by the invention is greener and more environmentally-friendly, non-corrosive,high in desulfurization capability, and good in renewability; and when the water-based eutectic solvent provided by the invention is used as an extractant for oil desulfurization, a desulfurization process and an extractant regeneration process can be controlled by adjusting the content of the hydrogen bond donor water, without adding other substances such as a back-extractant, so that neither oil nor the extractant can be contaminated by the back-extractant in an entire desulfurization system, the environment also cannot be contaminated, and in the entire desulfurization process and extractant regeneration process, the conditions are mild, and the operation is simple and easy for being continuous, thereby being suitable for industrial production.

The invention discloses a high-strength recycled concrete. The high-strength recycled concrete is composed of, by weight, 200 to 330 parts of cement, 80 to 90 parts of ore powder, 640 to 950 parts of recycled sand, 350 to 400 parts of recycled aggregate, 70 to 80 parts of a gel material, 5 to 12 parts of a pumping aid, and 170 to 200 parts of water. Most of the above raw materials, except recycled aggregate, are recycled, so that environment protection and resource recycling are realized further. No toxic or harmful material is added; no harm is caused on human body or the environment; the strength of the obtained high-strength recycled concrete is capable of reaching C50 standard; the performance of the high-strength recycled concrete is stable; stable control of the performance of the high-strength recycled concrete can be realized via controlling the amount of cement, recycled sand, and recycled aggregate; application value is high; a preparation method is low in cost, and is capable of satisfying economic and environment protection requirements; excellent economic benefit and social benefit are achieved.

The invention provides a natural environment-friendly printing ink, which is composed of the following raw materials in percentage by weight: 15 to 30% of alkyd resin, 5 to 10% of ethanol, 5 to 10% of anti-settling agent, 5 to 10% of antistatic agent, 25 to 45% of Carnabo wax, 5 to 10% of deionized water, 3 to 5% of moistening agent, 5 to 25% of pigment, 5 to 20% of glycerol ester of rosin, and 2 to 5% of lavender. The printing ink is prepared from natural substances, has a good printing effect, and at the same time is environment-friendly.

The invention discloses a vehicle tire testing system with an elastic supporting framework body, and belongs to the technical field of vehicle tires. The system is characterized in that transverse cavities are oppositely formed in the two sides of the inner wall of the ground cavity, and a first air cylinder and a second air cylinder are arranged in the transverse cavities; telescopic cavities areformed in the two sides of the ground cavity; the first air cylinder and the second air cylinder are respectively provided with a first extension arm and a second extension arm; a first roller and asecond roller are respectively arranged on the first extension arm and the second extension arm; a second supporting spring is arranged between the second front arm and the second rear arm; a first advancing rod and a second advancing rod are respectively arranged below the first rear arm and the second rear arm; a first sliding plate and a second sliding plate are respectively arranged above thefirst rear arm and the second rear arm; the first sliding plate and the first rear arm are fixed through a first connecting arm; and the second sliding plate and the second rear arm are fixed througha second connecting arm. According to the invention, clamping and fixing with adjustable size and elastic support can be provided for tires with different specifications, and the detection operation is facilitated.

The invention relates to the technical field of oil-free lubricating sealing materials, in particular to a self-lubricating wear-resistant PTFE (polytetrafluoroethylene) composite material and a preparation method thereof. The composite material comprises the following raw materials: PTFE, reinforced fibers, graphene, carbon black and a lubricant. The PTFE composite material is particularly suitable for being used as a sealing ring in glue dispenser equipment, has good self-lubricating property, good wear resistance, low friction coefficient, high and low temperature resistance, and long service life, reduces maintenance times and costs of the glue dispenser equipment, and avoids use cost increase caused by relying on imported sealing materials.

The invention discloses a harmless treatment and resource utilization method for alkaline washing sludge of a galvanizing line, and belongs to the technical field of solid waste resource recycling ina hot galvanizing process. The method specifically comprises the following steps that the collected alkaline washing sludge and the reducing agent of the hot galvanizing line are prepared according tocalculation and then subjected to selective reduction at the temperature condition of 800-1100DEG C to obtain zinc-rich volatile matters and iron-rich non-volatile matters; the zinc-rich volatile matters are leached in concentrated sulfuric acid, electrolyzed, and cleaned to obtain metal zinc; the iron-rich non-volatile matters are crushed and magnetically separated to obtain superfine iron and residual tailings particles; and cement clinker is obtain obtained by carrying out building material treatment on the residual tailings particles. By adopting the treatment method, the harmless treatment of the hot galvanizing line alkaline washing sludge without secondary pollution can be ensured, meanwhile, valuable resources are fully recovered and utilized, in addition, organic matters in the hot galvanizing line alkaline washing sludge are used for replacing part of reducing agents, the production cost is reduced, and the environmental protection is indirectly promoted.

The invention provides a friction plate hydraulic device with a sealing door. The friction plate hydraulic device comprises a base, a placing table is arranged at the upper end of the base, a friction plate to be machined is placed on the placing table, a pressing die is arranged over the placing table, the pressing die is driven by a hydraulic cylinder arranged at the upper end for pressing, the friction plate to be machined is pressed, machined and formed, a sealing box body is arranged outside the placing table, and the placing table, the pressing die and a hydraulic cylinder are wrapped through the sealing box body, and the sealing door is arranged on the sealing box body. The placing table, the pressing die and the hydraulic cylinder are wrapped through the sealing box body, so that waste gas generated in production can be conveniently collected, air in the sealing box body can be extracted through an exhaust pipe, the waste gas is collected in a concentrated mode and treated, the environmental protection strength is improved, and the environment is prevented from being polluted.

The invention discloses a municipal underground lamp, which comprises a lamp top cover, a lamp chamber and a lamp base, and is characterized in that: an annular groove is opened on the outer edge of the lamp top cover; the lamp chamber is divided into a lighting lamp chamber and a lamp chamber. The heat dissipation cavity is divided into two parts by a partition; the central bottom of the lighting cavity is threaded with a light guide column; the top of the light guide column is electrically connected with an LED lighting lamp; the surrounding of the light guide column is threaded. There is a solar power generation panel; the outside of the heat dissipation cavity is provided with a heat dissipation channel; the inner bottom of the heat dissipation cavity is threadedly connected with a radiator; the heat dissipation channel is provided with heat dissipation fins; the lower sides of the lamp base Adhesive magnets are pasted. The present invention has simple structure, convenient installation, stable structure, long service life, good anti-skid performance, good heat dissipation effect and sealing effect, and improves electricity safety. The sensor collects photometric information, which is flexible, saves power and reduces costs.

The invention provides a smokeless and odorless environment-friendly cooker which comprises a shell, a heating device and an inner pot. The heating device is installed at the bottom of the inner pot, the shell comprises an outer shell and an inner shell, the inner pot is installed in the inner shell, the inner shell is installed in the outer shell, a draught fan and a filtering device are arranged in the inner shell, and a side air duct is arranged between the outer shell and the inner shell; and the side air duct is communicated with an air suction port and an air outlet, and the air suction port, the side air duct, the filtering device and the air outlet form an internal circulation filtering air screen for adsorbing and filtering lampblack and smells generated by the inner pot under the action of kinetic energy of the draught fan. The smokeless and odorless environment-friendly cooker is simple in structure, convenient to use, good in filtering effect and capable of preventing the lampblack and smells from overflowing, improving the environmental protection strength, providing a comfortable use environment and guaranteeing the processing quality of various foods.

The invention discloses an electrode-free hydrogen-rich cup and a method for generating hydrogen-rich water by using same, and relates to the technical field of hydrogen-rich water; the hydrogen-rich cup comprises a cup body, the top of the cup body is fixedly connected with a communicating pipe, the top of the communicating pipe is in threaded connection with a cup cover, a sealing gasket ring is arranged in an inner cavity of the cup cover, and the top of the cup cover is fixedly connected with a suction nozzle; an air outlet located in the right side of the suction nozzle is formed in the top of the cup cover, and a threaded groove is formed in an inner cavity of the suction nozzle. By adopting a physical hydrogen dissolving method, high-purity hydrogen is pre-stored in the hydrogen bag of the hydrogen-rich cup, and when the hydrogen-rich cup is used, the hydrogen is sucked into the cup, and the hydrogen in the cup is dissolved in water to generate hydrogen-rich water, so that the defects that an existing hydrogen-rich cup needs an electrode and a power supply to electrolyze the water to generate the hydrogen-rich water, and the hydrogen-rich water is generated and heavy metal ion pollution and ozone generation are caused, and thus human bodies are hurt by heavy metal ion pollution and ozone, and the like are overcome; the safety and environmental protection of the cup are improved.

The invention discloses a preparation method for a cation potato starch microcrystalline wax/alkyl ketene dimer (AKD) neutral/basic sizing agent, which comprises the following steps of: degrading potato starch under the action of fungal alpha-amylase; then, performing cationization on the degraded potato starch by using 3-chloro-2-hydroxypropyltrimethyl ammonium chloride under the action of sodium hydroxide; then, neutralizing by using acetic acid to obtain a cation potato starch emulsifying agent; and finally, emulsifying AKD and 76# microcrystalline wax by using the cation potato starch emulsifying agent to obtain the cation potato starch microcrystalline wax/AKD neutral/basic sizing agent. As positive charges are carried, the prepared cation potato starch microcrystalline wax/AKD neutral/basic sizing agent can be favorably combined with paper fibers with negative charges, therefore, the sizing performance is greatly improved. The cation potato starch with low price is used as the emulsifying agent and the 76# microcrystalline wax with low price is adopted to replace part of AKD with higher price during the preparation process of the cation potato starch microcrystalline wax/AKD neutral/basic sizing agent, therefore, not only are the stability of an emulsion and the sizing performance improved but also the sizing cost is reduced.

The invention discloses a public spectacle cleaning device which comprises a box body (1) and a cleaning system arranged in the box body (1) and is characterized in that a scanner (12) is arranged on the box body (1) of the spectacle cleaning device, a controller (2) connecting the cleaning system and the scanner (12) is arranged in the box body (1), the scanner (12) transmits an authentication instruction to the controller (2), and the controller (2) sends a starting signal to the cleaning system. The public spectacle cleaning device avoids a great deal of defects of a coil-type starting structure, effectively restrains the production cost of hardware and protection devices as well as the daily maintenance and operation cost, reduces the risk cost, evades troubles caused by preparing changes for a user, greatly improves the using comfort and the using safety of the machine, shortens the starting time of the machine simultaneously, complies with the characteristic of frequent service cycle in public places and saves the using time and the waiting time for the user.

The invention discloses a low-volatility clean and anti-oxidative high temperature chain oil and a blending method thereof. The chain oil includes 30-70 wt% of dipentaerythritol, 10-30 wt% of alkylnaphthalene, 2-20 wt% of poly-alpha-olefin and 1-5 wt% of a high temperature antioxidant. The chain oil has the characteristics of unique formula, excellent anti-oxidation property, good lubrication anddetergency, less coking and low evaporation loss, and is low-volatility clean high temperature chain oil especially suitable for lubricating chains of printing and dyeing industry heat setting machines, wood manufacturing processing, high temperature ovens and other devices, and the prepared high temperature chain oil is suitable for lubricating chains with the ambient temperature of 260 DEG C orbelow, has a smaller volatility than traditional high temperature chain oils, reduces oil mists generated during use, meets the requirements of environmental protection, can reduce the use consumptionof lubricating oil, and achieves the purposes of reducing sludge formation and coking at a high temperature and keeping the cleanness of the chains for a long term by matching the high-performance amine antioxidant complex.

The invention relates to the technical field of valve machining, and discloses a valve machining fixing method good in clamping effect. Fixing grooves (6) and fixing rods (7) are arranged, the fixingrods (7) are fixedly connected in the fixing grooves (6), when hydraulic rods (5) clamp and fix a valve (11), the fixing rods (7) can effectively carry out reinforcement treatment on connecting plates(9), and therefore the good fixing effect of a valve machining fixing device good in clamping effect is guaranteed. A motor (20) and electric push rods (14) are arranged, the electric push rods (14)drive clamping cushions (15) to clamp and fix the outer side of the top end of the valve (11), and therefore it is guaranteed that the motor (20) can drive the valve (11) to rotate. Operators can conveniently carry out machining work on the valve (11) in various angles, the work efficiency of the operators is improved, and the good machining quality of the valve (11) is guaranteed.

The invention discloses a thermal insulation waterproof sheet installation structure of a dry-hanging external wall and an installation method of the thermal insulation waterproof sheet installation structure. The thermal insulation waterproof sheet installation structure includes a shear wall external wall, a plurality of waterproof thermal insulation sheets spliced in the length direction and the width direction are installed on the outer side surface of the shear wall external wall, a plurality of vertical upward clamping bolts are arranged on the sides, close to the shear wall external wall, of the waterproof thermal insulation sheets, opposite-pulling installation holes are formed in the positions where the shear wall external wall corresponds the clamping bolts, the opposite-pullinginstallation holes penetrate through the thickness direction of the shear wall external wall, the clamping bolts are inserted into and penetrate out of the opposite-pulling installation holes, so thatthe waterproof thermal insulation sheets are closely attached to the outer side surface of the shear wall external wall, and the technical problem of large construction difficulty and poor mortar anti-cracking effect in the prior art are solved.

The invention discloses a part polishing operation table with an automatic scrap collecting function for machine manufacturing. The part polishing operation table comprises an equipment body, a foundation base is fixedly installed at the top of the equipment body, a first box body is fixedly installed at the top of the foundation base, and fixing plates are fixedly installed on the two sides of the first box body; first sliding grooves are formed in the fixing plates, first sliding blocks are movably installed outside the first sliding grooves, fixing knobs are fixedly installed on one sides of the first sliding blocks, and a first rod piece is fixedly installed on the other sides of the first sliding blocks; and a telescopic device is fixedly installed outside the first rod piece, and a first connecting block is fixedly mounted at the top of the telescopic device. By movably installing a protective cover outside related polishing devices, the effect of preventing polishing dust and scraps from diffusing all around is achieved, and related control can be conducted on the polishing scraps and dust; and by arranging a related dust suction device and a related connecting cover frame,the effect of automatically collecting the polishing scraps can be achieved.