147results about How to "To achieve the goal of green environmental protection" patented technology

The invention relates to a method to pre-treat a hard-to-leach gold ores-pyrite by microwave roasting, which is characterized in that the gold ores-pyrite or fine gold ores-pyrite with the granularity being 200 meshes which takes 90% to 95% of the whole gold ores-pyrite is positioned in a reaction chamber of a microwave roasting oven, a nitrogen is filled fully into the reaction chamber, starting the microwave roasting oven, the gold ores-pyrite or fine gold ores-pyrite is radiated and roasted by the microwave in the nitrogen atmosphere, the roasting temperature is 450 to 580 degree centigrade, the power is 4 to 6kw, the microwave roasting oven stops working after roasting for 5 to 20 minutes, a roasted product is made when the roasting gold ore-pyrite is taken out. The method to pre-treat a hard-to-leach gold ores-pyrite by microwave roasting has the advantages of increasing the gold leaching yield of the hard-to-leach gold ores-pyrite up to over 90%, reaching purpose of the environment protection because the sulfur is precipitated as a free sulfur without the recovery process of smoke and dust, and saving the energy because the microwave roasting process is adopted and the pretreatment time is greatly shortened.

The invention relates to a coating material and a preparation method thereof, and in particular relates to an environment-friendly interior wall coating material with calcined shell powder as base stock and a preparation method of the environment-friendly interior wall coating material. The environment-friendly interior wall coating material comprises the following components in percentage by weight: 44-53 percent of calcined shell powder, 7.0-9.0 percent of starch gel, 7.0-9.0 percent of cellulose gel, 7.0-9.5 percent of styrene-acrylic emulsion, 1.0-2.0 percent of glycol, 1.0-2.0 percent of dispersing agent, 0.5-1.5 percent of coalescing agent, 0.5-1.5 percent of defoaming agent, 0.2-0.6 percent of multifunctional additive and the balance of water. The coating material produced by using the preparation method not only accords with basic standards of national coating materials, is resistant to alkali, scouring and low temperature and good in covering effect and construction effect, but also has the function of better adsorbing harmful gases, such as formaldehyde and is an environment-friendly purely natural nuisanceless interior wall coating material.

The invention discloses a rare earth modified surface treating agent for copper and copper alloys and a preparation method thereof. The surface treating agent per liter comprises the following raw materials by weight: 1-3g of benzotriazole, 1-5g of sodium molybdate, 0.1-0.3g of sodium silicate, 0.3-0.6g of rare earth salt, 10-20g of complexing agent, 6-10g of sulfosalicylic acid, 0.2-0.6g of surfactant, a small amount of pH regulator and the balance water. The surface treating agent of the invention can be used for passivation at the room temperature, have short passivation time and be green and environmentally friendly; the passivated copper or copper alloy surface has good corrosion resistance; and the treating agent has simple treatment technology and is convenient for actual production.

The invention relates to a weighing module which comprises a base and a weighing sensor, wherein the connecting side of the weighing sensor is installed on the base by a fastener; the base is provided with more than two installation holes; both side faces of the weighing sensor are connected with the wall of a spacing groove; the bearing side of the weighing sensor is provided with blind holes in a vertical direction; a top board or / and a bottom board of a frame-shaped rack is provided with installation holes; a bearing piece with spacing holes at the bottom is screwed on the top board of the frame-shaped rack and is fixed with the top board by a fastening bolt; both end surfaces of a rocking column respectively come into contact with the bottom surfaces of the blind holes and the top surfaces of the spacing holes; protective space A is arranged between the upper end surface of the weighing sensor and the bottom surface of the bearing piece; two horizontal spacing bolts are respectively installed on two side boards and positioned on both sides of the weighing sensor; and protective space B is arranged between the end surfaces of the horizontal spacing bolts and both side faces of the weighing sensor. The weighing module has the characteristics of high weighing precision, safety, reliability, convenient installation and maintenance, stable operation, low manufacturing cost and wide application range.

The embodiment of the invention provides a TEC (Thermoelectric Cooling Module) refrigerating device of a thermoelectric refrigeration module; the TEC refrigerating device comprises a TEC module, a first heat exchanger and a second heat exchanger. The TEC module comprises a cold end and a hot end opposite to the cold end. The first heat exchanger is arranged at the cold end of the TEC module and used for exchanging heat with a medium around the cold end of the TEC module. The second heat exchanger is arranged on the hot end of the TEC module and comprises an evaporation end and a condensation end; the second heat exchanger is internally provided with a cooling medium which is used for exchanging heat between the evaporation end and the condensation end in a phase-changing way; and the evaporation end is adjacently connected with the hot end of the TEC module. In the TEC refrigerating device in the embodiment of the invention, the heat exchange with the hot end of the TEC module is accelerated by using the second heat exchanger capable of radiating heat rapidly, so that the heat exchange efficiency is improved, the energy source is saved and the purpose of environmental protection is achieved.

The invention relates to a method for synthesizing microballoon of electronic paper via titanium oxide or dye investing method, and relative application in the medium with low dielectric constant, while prior art generally dyes raw material, synthesizes inner core, synthesizes shell (the inner core has pyridinyl or epoxy at surface can eliminate shell), and ionizes outer shell of microballoon, to synthesize the microballoon of electronic paper. The inventive microballon prepared by titanium oxide or dye investing method can improve surface electric charge and activity, which further simplifies the process synthesizing different microcapsules and dying microballoon via different dyes. The invention provides a method for preparing organic colorful microballoon via microcapsule emulsion polymerization and preparing inorganic colorful microballoon via sol-gel method. The invention uses non-toxic solvent as electrophoresis medium to prepare electrophoresis solution, which can reduce VOC consumption and pollution.

The invention provides an electro-hydraulic hybrid driven electric shovel hoisting system and belongs to the field of large equipment for surface mining. The electro-hydraulic hybrid driven electric shovel hoisting system comprises a dipper, a hoisting drum, a speed reducer, a hoisting motor, a hydraulic pump / motor, accumulator groups, an overflow valve, a frequency converter, a DC / DC converter and a super-capacitor group, wherein the DC / DC converter is connected onto a DC bus of the frequency converter and connected with the super-capacitor group; the hydraulic pump / motor is arranged at an output end of any drive shaft between the speed reducer and the hoisting motor, and an oil port of the hydraulic pump / motor is connected with the corresponding accumulator group. According to the electro-hydraulic hybrid driven electric shovel hoisting system, electric energy produced by the hoisting motor during falling of the electric shovel dipper can be stored in the super-capacitor group, so that peak current of an electric shovel motor is reduced, and the working stability of the electric shovel motor is improved. Meanwhile, gravitational potential energy of the electric shovel dipper during falling is converted into hydraulic energy which is stored in the accumulator groups, the energy is used effectively during dipper hoisting to assist motor working, installed power of the electric shovel hoisting motor is reduced, and the working efficiency of the electric shovel is increased.

The invention discloses a sprinkling and dripping double-irrigation integrated system based on smart agriculture. The sprinkling and dripping double-irrigation integrated system comprises a central control device and a relay box which are pre-buried in the ground and are in communication through a protection pipe, wherein a pipeline control assembly is installed in the relay box through a fixed plate; and a front flow collecting pipe communicates with and is arranged at one side, far away from the central control device, of the relay box through a protection pipe. The invention relates to thetechnical field of agricultural irrigation equipment. The sprinkling and dripping double-irrigation integrated system based on smart agriculture provided by the invention has the following advantages:the combined design of sprinkling irrigation and dripping irrigation can be realized; the switching work is performed; sprinkling irrigation and dripping irrigation are simultaneously performed; thesprinkling and dripping double-irrigation integrated system is more flexible to use and can realize free twisted adjustment according to the position and depth needing to be inserted into the ground during dripping irrigation, does not need to adjust an installation position according to the position of a crop, well achieves flexible use by directly adopting a soft sleeve dripping irrigation pipeline and conducting switch type control; and thus, the sprinkling and dripping double-irrigation integrated system greatly facilitates using for people.

The invention discloses a detecting method of an aromatic amine compound in a water sample, belonging to the technical field of analytical chemistry. The aromatic amine compound is p-chloroaniline, 1-naphthylamine and 4-aminobiphenyl. The detecting method comprises extraction and detection processes, ionic liquid [C6MIN][PF6]or[C4MIM][PF6] is used as an extracting agent, vortex oscillation is adopted to assist the ionic liquid in carrying out microextraction, an ultra fast liquid chromatograph is used for detecting, and a regressive curve equation is used for obtaining a detection result. The detecting method provided by the invention has high sensitivity, low detection limit and good degree of precision; a green reagent is used as the extracting agent, thus, using an organic reagent isavoided, and pollution to the environment is reduced; the detecting method has the characteristics of rapidness, stability and the like, and the time for detecting samples is greatly shortened; and the detecting method can be applied to the detection of the aromatic amine compounds in various water samples and has a certain social significance on protecting the environment and the health of humanbeings.

The invention discloses an automatic green packaging system. The automatic green packaging system comprises a conveying system, a sorting system, a carton supply system, a commodity packaging system and a control system. The conveying system comprises a main conveying line and a plurality of sorting conveying lines. Commodities are conveyed through the main conveying line, and after shape and sizeinformation is recognized through a binocular vision part, the commodities are sorted to the various sorting conveying lines according to a certain rule to be conveyed to corresponding commodity packaging lines to be packaged. Meanwhile, the control system controls the carton supply system to match and produce cartons proper in size online according to the shape and size information of the commodities, the cartons are conveyed to the commodity packaging lines for packaging the commodities, and the packaged commodities are gathered and conveyed into a truck loading area to be loaded through afinished product conveying line. The green packaging system is capable of achieving full automation, refining and self-adaptation, a rapid, material-saving and compact-space green packaging scheme isprovided so as to cope with the situation of a large number of packaging demands and the problems of environment pollution, resource waste and the like are greatly reduced.

The invention belongs to the field of building construction, and particularly relates to an underground blind ditch and permanent water-collecting well comprehensive dewatering system applied to a basement. The underground blind ditch and permanent water-collecting well comprehensive dewatering system applied to the basement comprises a water-collecting well on a base soil layer, the part, outside the base soil layer, of the water-collecting well and adjacent foundation pit slopes are filled with backfill, a submersible pump with a water level control valve is arranged at the bottom in the water-collecting well, a sand well cover plate covers the wellhead of the water-collecting well, a drain pipe connected with the submersible pump penetrates through the upper portion of the sand well cover plate, an underground blind ditch is dug in the base soil layer and internally provided with an underground blind ditch drainage pipe, holes with the diameter of 5 are formed in the underground blind ditch drainage pipe at intervals of 50 mm, and the underground blind ditch drainage pipe is communicated with the water-collecting well. Underground water is gathered in the water-collecting well through the underground blind ditch, the water level control valve is arranged in the water-collecting well, and after water level in the water-collecting well reaches a certain height, the submersible pump is started to drain water.

The invention discloses environment-friendly rice husk ash porcelain blank and a preparation method. The environment-friendly rice husk ash porcelain blank is made of, by weight, 30-45 parts of kaolin, 10-15 parts of feldspar, 25-35 parts of quartz and 25-50 parts of rice husk ash. The rice husk ash is used as a production material in a high proportion via repeated compounding tests, and accordingly the problem of shortage of porcelain clay is solved, wastes of crops can be fully used, production cost is reduced, environment is protected, and resources are saved. Further, the problems of blank molding and combination of blank and glaze can be solved, the environment-friendly rice husk ash porcelain can be greenly white, bright and glossy, and characteristics of Chingtechen celadon are truly embodied. Ecological balance is maintained and environment protection is achieved by using wastes of crops.

The invention relates to a method for separating and purifying m-cresol and p-cresol by a complex crystallization method; first, triethylenediamine is used as a complexing agent to obtain high-purity p-cresol through complex crystallization, and then the filtrate in this operation is As a reactant, sodium acetate is used as a complexing agent to purify m-cresol through complex crystallization. In order to improve the overall yield, the filtrate in the sodium acetate method is recycled back to the first step as a reactant to continue to use. The method can simultaneously obtain m-cresol and p-cresol products with a purity of more than 99.5%, and recycles the filtrate after rectification to maximize the use of raw materials, so that the overall yield of the process can reach more than 99%. The organic solvents and complexing agents used in the reaction process can be recycled in the process, without the discharge of "three wastes", achieving the goal of environmental protection. In addition, compared with the prior art, the complexing agent selected in the present invention requires milder temperature conditions for reaction and cooling crystallization, which greatly reduces energy consumption.

The invention relates to a light-duty modified asphalt which is prepared from the following raw materials in parts by weight: 20-40 parts of petroleum resin, 20-40 parts of rubber process oil, 3-12 parts of thermoplastic styrene-butadiene rubber (SBS), 5-10 parts of low-density polyethylene (LDPE), 0.01 part of dioctyl phthalate (DOP) and 0.01-0.03 part of polyethylene wax. The light-duty modified asphalt is cheap; and according to the 70# matrix asphalt, the standard penetration degree is 60-80, the softening point is greater than 45 DEG C, the ductility (10 DEG C, 15 DEG C) is greater than 100CM, and the asphalt 135 DEG C kinetic viscosity is less than 3 Pa.s. The light-duty modified asphalt has lighter chroma (14-17) according to the standard chroma card, and belongs to light yellow; the color is light and is easy to change; and thus, the light-duty modified asphalt can be easily mixed with most colorants, and has bright discharge color. The road asphalt specifications clearly point out that the 135 DEG C rotary viscosity of the modified asphalt should be less than 3 Pa.s; and the 135 DEG C viscosity of the light-duty modified asphalt provided by the invention is 2.58 Pa.s, so the light-duty modified asphalt is easy for construction due to the lower viscosity.

The invention discloses a multifunctional power equipment heat radiation device and belongs to the technical field of a heat radiation device. The heat radiation device comprises a cabinet body of a power equipment cabinet which is internally hollow. The cabinet body comprises a cabinet door arranged on a side wall, an upper roof plate and a lower bottom plate. The two sides of the cabinet body inthe length direction are respectively provided with a water storage tank; the two sides, where the upper roof plate is connected with the water storage tanks, of the cabinet body are respectively provided with a pitched roof; the front and back ends of an upper top surface of the upper roof plate of the cabinet body are respectively provided with a water fender plate; the middle position of a lower bottom surface of the upper roof plate is provided with a first heat radiation fin; the cabinet body is internally provided with an installation stand; second heat radiation fins are placed on theinstallation stand; each second heat radiation fin is equipped with a heat conduction pipe; and the other ends of the heat conduction pipes pass through the side walls of the cabinet body and go intothe water storage tanks. The multifunctional power equipment heat radiation device solves the problems that an existing device is single in heat radiation function, needs to consume energy and is poorin heat radiation effect, and achieves a purpose of multi-function heat dissipation.

The invention provides a refractory ceramic product and a manufacturing technology thereof and relates to the technical field of ceramics. The refractory ceramic product comprises 200-350 weight parts of blanks, 50-100 weight parts of glazes and 20-40 weight parts of auxiliaries. The raw material composition and the manufacturing technology of the refractory ceramic product provided by the invention are both strictly controlled; at the aspect of the raw materials, blanks, glazes and auxiliaries are reasonably prepared, so that the roasted ceramic product has excellent high temperature resistance, chemical stability, hardness and toughness; at the aspect of the technology, an once-firing manner is adopted for roasting the ceramic, so that the shovel strength is increased and the cost is lowered; besides, a method for gradually increasing temperature and roasting in stages is adopted for roasting, so that the cracking and uneven surface caused by the rapid loss of the ceramic water can be avoided, the yield of the product can be greatly increased and the refractory ceramic product is worthy of popularization in the market.

The invention discloses a fibrous composite material and a preparation method thereof. The fibrous composite material is a three-dimensional multi-layer fabric which comprises an upper surface layer and a lower surface layer, wherein a middle layer formed by the connection of middle separating yarns is arranged between the upper surface layer and the lower surface layer and is filled with nanofiber. The preparation method comprises the step of filling the middle layer of the three-dimensional multi-layer fabric with nanofiber by virtue of an electrostatic spinning method or a biological method, so as to form the fibrous composite material. The fibrous composite material has strong force, is capable of resisting external tensile force and bearing a certain compression performance and has very good elastic return action, the structure is relatively strong, and the bonding is relatively firm. Furthermore, the nano-level fibrous composite material has relatively high porosity and high in filter efficiency. The preparation method is low in cost and and suitable for industrial production. The fibrous composite material can be further taken as a filling material and has a protection enhancing effect.

The invention relates to an ultraviolet (UV) curing silicon steel insulating coating and a preparation method thereof. The insulating coating comprises the following raw materials by mass percent: 10-25% of prepolymers, 3-10% of active diluting monomers, 10-28% of pigments and fillers, 1-8% of photoinitiators, 2-10% of additives and the balance of water. The energy loss can be effectively reduced, the curing rate can be increased and the green and environmental protection aims can be achieved by adopting the developed UV curing silicon steel insulating coating, and meanwhile, the formed silicon steel insulating coating also has excellent heat and humidity resistance, solvent resistance, weldability, blanking property, adhesiveness and corrosion resistance, high interlamination resistance, and the like and meets the silicon steel industrial production requirements.

The invention belongs to the technical field of plant growth matrices, and particularly relates to a garden type roof greening matrix and a manufacturing method thereof. The garden type roof greeningmatrix comprises an organic matter and an inorganic matter, wherein the volume percentage of the inorganic matter is 80%-85%; the volume percentage of the organic matter is 15%-20%; in the inorganic matter, the weight percentage of crushed particles with the particle size of 0.05 cm to 0.5 cm is 15-65%; and in the organic matter, the weight percentage of crushed particles with the size of 0.05 cmto 0.5 cm is 15-65%. The garden type roof greening matrix provided by the invention mainly meets the requirements of high-grade three-dimensional greening, can be intelligently managed aiming at the construction and management of gardens with multiple plant types and multi-layer structures and gardens in the air, and high roof load is required. The roof planting with dense plants and a multi-layerstructure can be met, the roof is light in weight, water and fertilizer can be preserved, roots can be easily inserted, permeable drainage is facilitated, water and oxygen can be preserved, roof plants grow reasonably, and green ecological materials are provided for ecological city construction, sponge city construction and fourth-generation residential construction in the future.

The invention relates to environment-friendly fuel and a preparation method thereof, and provides environment-friendly fuel which is clean, sanitary, green, environmentally friendly, full in combustion, free of residual liquid and residues, safe in use, convenient to use and wide in application range and a preparation method thereof. The environment-friendly fuel is prepared from, by mass, 97-99 parts of methyl alcohol and 1-3 parts of additives. The preparation method of the environment-friendly fuel comprises the following steps that 1, 97-99 parts of methyl alcohol is poured into a barrel X and stirred to be uniform for use; 2, 0.1-0.6 part of an anti-explosion agent and 0.2-0.6 part of cosolvent are taken to be mixed, stirred to be uniform and added into the barrel X; 3, 0.4-1.1 parts of a combustion improver is added into the barrel X, the materials are stirred to be uniform, and standing is conducted for 12 hours or above.

The invention belongs to the technical field of material preparation, and more specifically relates to sodium alginate microsphere with a corrosion inhibitor being coated inside, and a preparation method and applications thereof. The particle size of the sodium alginate microsphere ranges from 20 to 30<mu>m. The sodium alginate microsphere is added into a water-based paint at a certain ratio for coating of the surface of metal, when cracking of a formed coating layer is caused, water molecules permeate, water-sensitive fracture of the sodium alginate microsphere with the corrosion inhibitor inside is caused, the corrosion inhibitor is released, and gel states are achieved; the released corrosion inhibitor is absorbed by the metal surface, metal corrosion is prevented, formed sodium alginate gel is used for filling gaps on the coating layer, so that anti-corrosion performance of the coating layer is improved, and the service life of the water-based coating layer is prolonged in a green and environmental-friendly manner.

The invention relates to a laser initiation system, and belongs to the field of civil explosive apparatuses production. The system is characterized by comprising a laser device adapting power supply (1), a laser device power supply numerical control system (2), a laser device array (3), a laser divider (4), optic fibers (5) and an initiating explosive-free laser detonator (6). A plurality of laser devices are arranged to form the laser device array, a power supply switch of each laser device in the laser device array is controlled by the power supply numerical control system, and the delaying time can be set. The laser generated by the laser device is guided into the laser divider by the optic fibers, and a plurality of laser-dividing optic fibers are guided out. A bayonet pin fixed at the head of each optic fiber is inserted into the bayonet of the initiating explosive-free laser detonator, and then the optic fibers just reach the high-laser sensitive explosive containing the laser absorbing matter in the initiating explosive-free laser detonator. After the power supply is engaged, the power supply numerical control system with set delaying time is started, the laser generated by the laser device array is guided into the laser divider by the optic fibers, and the divided laser can simultaneously initiate the initiating explosive-free laser detonator.

The embodiment of the invention discloses a 3D printing robot and a printing system, and relates to the technical field of house building. The 3D printing robot comprises a feeding assembly, a regulation assembly, a movement assembly and a printing assembly. A control assembly is connected with the feeding assembly, the regulation assembly, the movement assembly and the printing assembly respectively. The feeding assembly is connected with the printing assembly and is set to convey materials into the printing assembly. The regulation assembly is arranged below the printing assembly and is setto regulate the printing assembly. The movement assembly is arranged below the regulation assembly and is set to drive the regulation assembly and the printing assembly to move. Under coordinate control of the control assembly, the feeding assembly, the regulation assembly, the movement assembly and the printing assembly are used in cooperation to achieve the functions of automatic feeding of thematerials, and automatic printing; and the 3D printing robot can complete automatic printing to build a house, mechanical construction of constructional engineering is leveled up, and the efficiency of constructional engineering is improved, and consumption of building materials and energy sources is reduced.

The invention discloses a culture medium capable of adjusting the water-gas configuration. The culture medium comprises organic components and inorganic components, wherein the inorganic components account for 20%-60% of the volume of the whole culture medium, and the organic components account for 40%-80% of the volume of the whole culture medium; and crushed particles with the particle size of 0.25 mm-3 mm account for 58%-76% of the weight of the inorganic components, and crushed particles with the particle size of 0.25 mm-3 mm account for 58%-76% of the weight of the organic components. According to the culture medium, the mechanical composition, namely particle size distribution, of each particle size is reconstructed, so that reasonable hole size distribution is regulated and controlled, a scientific and reasonable medium water-gas configuration is established, and water, oxygen and nutrition supply of plants is met to the maximum extent.

The invention discloses a microwave-hydrolyzation method of pearl powder. The method comprises the steps of: (1) carrying out freeze drying on raw pearl powder for pre-activation, mixing the pearl powder subjected to freeze drying with water A to prepare turbid liquid, transferring the turbid liquid into a microwave reactor, controlling the temperature at 60-200 DEG C, the microwave power at 100-300 W, and the pressure at 200 Pa, and reacting for 0.5-5 hours to obtain reaction liquid A; and (2) adding water B to the reaction liquid A prepared in step (1) again to obtain reaction liquid B, keeping the system at the constant temperature of 60-200 DEG C, reacting for 0.5-10 hours in an intermittent gradient heating way and filtering the reaction liquid B after the reaction is ended so as to obtain a product of the pearl powder, wherein the total addition amount of the water A and the water B is 10 to 40 times of the amount of added pearl powder. According to the microwave-hydrolyzation method of the pearl powder, disclosed by the invention, numerous adverse factors of the conventional hydrolyzation method of pearl powder, such as complex separation process (acid, alkaline, enzyme catalyst and the like), environmental pollution caused by the posttreatment process, low utilization rate and the like are eliminated; moreover, the whole process is carried out without any factors bad for health, and therefore the pure natural property of nutrient components of the pearl (pearl powder) can be ensured.

The invention discloses a method for preparing a chromium adsorbent from yellow phosphorus slag and an application. The method comprises the following steps: the yellow phosphorus slag is leached anddecomposed with a nitric acid solution, a decomposed solid material is washed and dried, a porous SiO2 powdery support material with high activity is obtained and subjected to coated compositing withan impregnation method, and an SiO2-based chromium adsorbent powder material is obtained; a decomposed leachate is converted by ammonium carbonate, and light calcium carbonate and an ammonium nitratesolution are obtained; the SiO2-based chromium adsorbent powder material has good adsorptive property for chromium in wastewater when applied to chromium-containing wastewater treatment; the method adopts simple process and equipment and is easy and safe to operate, the utilization rate of the yellow phosphorus slag resource is high, one technical route for producing products with higher added values from industrial waste is provided, secondary comprehensive utilization of resources can be realized, and the purposes of circular economy, energy conservation and emission reduction are achieved.

The invention relates to a microsphere used for synthesizing electronic paper by embedding dyes as well as the synthesis and application thereof. The invention is characterized in that the microsphere comprises an inner core and a shell; wherein, the inner core is polymer embedding dye. The polymer is formed by copolymerization of the following selected monomers: styrene, divinyl benzene, methyl metharcrylate, isobutyl methacrylate, n-butyl methacrylate, methacrylate, 4-vinylpridine, ethyl acrylate, butyl acrylate, acrylonitrile, glycidolmethacrylate, allyl methacrylate, methylacrylic acid, acrylic acid, vinyl acetate or perchloroethylene; the shell is polymerized by the following monomers: ethylene monomer containing a epoxy group or ethylene monomer containing a pyridyl in a side chain. The microsphere used for electronic paper in the invention has the advantages of excellent flexibility and anti-aggregation performance, thus keeping the stability of microsphere in the medium.

The invention provides a multi-stage exhaust gas treatment device. The exhaust gas treatment device comprises bag-type dust collectors, filter tanks, a collection box and a spray purifying tank, the bottom end of the spray purifying tank is connected with the collection box through a main pipe, two filter tanks are arranged and symmetrically located on both sides of the main pipe, the positions, close to the main pipe, of the filter tanks are communicated with the main pipe through air outlet pipes, and the positions, away from the main pipe, of the filter tanks are connected with bag-type dust collectors through air inlet pipes. According to the exhaust gas treatment device, exhaust gas is treated by adopting a multi-stage treatment manner of the bag-type dust collectors, the filter tanksand the spray purifying tank, the absorption rate of the exhaust gas can be improved, and the industrial discharge standard can be achieved; through special design of internal structures of the spraypurifying tank and ingenious combination of sprinkle heads and partition plates, the sprayed water is reflected by the partition plates, and the exhaust gas is in contact with the water repeatedly toimprove purification efficiency; through the arrangement of circulating pipelines and the collection box, the sprayed water is effectively recycled and reused, the use cost of water is reduced, and the purpose of green environmental protection is achieved.

The invention relates to the technical field of hydrogel preparation, in particular to a self-repairing chitosan hydrogel corrosion-resistant coating and a synthetic method thereof. The coating consists of a component A and a component B which are mixed according to the mass ratio of m(A) to m(B)=1:(0.5-2); the component A is a carrier material and an adhesive; and the component B is chitosan anda corrosion inhibitor. The hydrogel corrosion-resistant coating obtained by the synthetic method provided by the invention is green, environmentally-friendly, non-toxic and harmless to an environmentand excellent in self-repairing performance, can quickly and efficiently repair large-size cracks and achieves a corrosion protection effect.

The invention discloses a microwave-hydrolyzation method of pearl powder. The method comprises the steps of: (1) carrying out freeze drying on raw pearl powder for pre-activation, mixing the pearl powder subjected to freeze drying with water A to prepare turbid liquid, transferring the turbid liquid into a microwave reactor, controlling the temperature at 60-200 DEG C, the microwave power at 100-300 W, and the pressure at 200 Pa, and reacting for 0.5-5 hours to obtain reaction liquid A; and (2) adding water B to the reaction liquid A prepared in step (1) again to obtain reaction liquid B, keeping the system at the constant temperature of 60-200 DEG C, reacting for 0.5-10 hours in an intermittent gradient heating way and filtering the reaction liquid B after the reaction is ended so as to obtain a product of the pearl powder, wherein the total addition amount of the water A and the water B is 10 to 40 times of the amount of added pearl powder. According to the microwave-hydrolyzation method of the pearl powder, disclosed by the invention, numerous adverse factors of the conventional hydrolyzation method of pearl powder, such as complex separation process (acid, alkaline, enzyme catalyst and the like), environmental pollution caused by the posttreatment process, low utilization rate and the like are eliminated; moreover, the whole process is carried out without any factors bad for health, and therefore the pure natural property of nutrient components of the pearl (pearl powder) can be ensured.