403results about How to "Protect the environment" patented technology

The invention relates to the technical field of cement-based composite cementing material preparation, in particular to a low-carbon environment-friendly cement-based composite cementing material and a preparation method thereof.The preparation method comprises the steps that an initial forming object is subjected to regional division according to position characteristics so as to obtain real-time monitoring results of all target monitoring regions, determining the actual state of each target monitoring area according to the real-time monitoring result; analyzing the actual state to determine a single mixing amount set of each target monitoring area; integrating the single mixing amount sets to obtain a target mixing amount set, and sequentially performing stirring and pouring molding according to the target mixing amount set to obtain a target molded object; in the stirring process, the initial stirring parameters are adjusted according to the actual stirring degree in combination with the overall analysis result, so that actual stirring parameters are determined; and in the pouring forming process, the initial pouring parameters are adjusted according to the bubble generation rate in combination with the overall analysis result, so that the actual pouring parameters are determined.

The invention provides multi-element alloy silver-free copper-based brazing filler metal and a preparation method thereof.The brazing filler metal comprises, by mass, 30%-40% of zinc, 4%-11% of manganese, 1%-4% of tin, 0.2%-0.6% of silicon, 0.2%-1% of rare earth elements and the balance copper, the rare earth elements comprise cerium, praseodymium and rhenium, and the mass ratio of cerium to praseodymium to rhenium is (0.8-1.2): (0.8-1.2): (0.6-1.0). According to the multi-element alloy silver-free copper-based brazing filler metal, the performance of a brazed joint is improved, the strength, toughness, fatigue resistance and the like of the joint are improved, and the reliability and stability of connection under various working conditions are ensured.

The invention relates to a photo-degradable room temperature curing double-component polyurethane adhesive and a preparation method thereof.The adhesive comprises a component A and a component B. The component A comprises a polyol modified polyurethane prepolymer with the end group being an isocyanate group, and the component B comprises a polyhydroxy composition; the component A and / or the component B further comprises a photodegradable oximido unit. After the two components in the adhesive are mixed, sized and cured, the oximido unit can be degraded through ultraviolet irradiation, so that the bonding strength is reduced, and a bonding base material can be naturally debonded along with the prolonging of the irradiation time. In the gluing process, curing can be completed at the room temperature after the two components are mixed, bonding of a heat-sensitive material can be achieved easily, then a bonding sample can be detached through ultraviolet irradiation, and good application prospects are achieved.

The invention relates to a heating furnace, in particular to a biomass fuel furnace capable of automatically removing slag, which comprises a combustion chamber, an upper auger, a lower auger and a feed hopper. The automatic slag removing device is characterized in that a slag falling opening is formed in the bottom of the combustion chamber, a slag discharging plate is arranged below the combustion chamber, and a cylindrical cam is arranged between the first motor and the auger and controls the slag discharging plate to reciprocate so as to automatically remove slag. Compared with the prior art, automatic slag removal is achieved, and fire can be prevented from spreading reversely.

The invention relates to the technical field of heat exchangers, in particular to a plate heat exchanger cleaning system, a plate heat exchanger and a cleaning method. The fluid monitoring devices are installed at an inlet and an outlet of the plate heat exchanger respectively, connected with the control device and used for monitoring fluid data of the inlet and the outlet of the plate heat exchanger and transmitting the data to the control device. The high-pressure cleaning device is arranged between plate channels of the plate heat exchanger, is connected with the control device and is used for acquiring an instruction of the control device and cleaning the plate channels of the plate heat exchanger; the control device is used for receiving the fluid data of the fluid monitoring device and generating a cleaning instruction to the high-pressure cleaning device. Real-time monitoring and a response mechanism are combined, the fluid monitoring device, the high-pressure cleaning device and the control device are combined for control, the self-cleaning function of the plate heat exchanger is achieved, and the problems that an existing plate heat exchanger is difficult to clean and low in efficiency are solved.

The utility model provides a surface cleaning device for recycling steel pipes, which belongs to the technical field of steel pipe cleaning and comprises a shell, a support is arranged at the bottom of the shell, an inlet and an outlet are respectively arranged on the front side and the rear side of the shell, and a drain outlet is arranged at the bottom of the shell. The two sets of steel pipe leading-in assemblies are arranged at the positions, close to the front outlet and the rear outlet, of the bottom wall of the shell correspondingly; the steel pipe cleaning assembly comprises a mounting seat and a roller brush, the mounting seat is arranged at the top of the sewage draining exit, a dust removal opening is formed in the bottom of the mounting seat, the dust removal opening penetrates through the sewage draining exit and extends to the outer side of the dust removal opening, the roller brush is rotationally arranged at the top of the mounting seat, and a through hole is formed in the roller brush. The problems that in the prior art, when steel pipes are recycled, impurities such as rust, soil and cement on the steel pipes are not effectively removed, the strength and stability are poor, the weight is increased, and then reutilization of the steel pipes is affected are solved.

The invention relates to a paper substrate bio-based high-barrier Pickering emulsion coating and a preparation method and application thereof, and belongs to the technical field of paper coatings, the prepared coating has excellent waterproof and oil-proof performance and is suitable for surface coating of substrates such as paper, the emulsion is prepared by taking glycerol as a plasticizer and chitosan as an oil-proof agent, and the emulsion is prepared by taking the chitosan as an oil-proof agent. The cellulose nanocrystal is used as an emulsifier, and the alkyl ketene dimer AKD and palm wax are used as an oil phase. After the emulsion is coated on the surface of paper, a high-barrier coating with a core-shell structure is formed, and the core-shell structure is clear through electron microscope observation; the hydrophobic angle of the coating can reach 130 degrees to the maximum, and the coating shows remarkable hydrophobicity and oil resistance. The coating is composed of bio-based materials, has the advantages of environmental protection and sustainability, is suitable for application requirements of degradable and green packaging, is simple in preparation process and excellent in performance, and can provide efficient barrier performance for paper packaging materials.

The invention provides an anti-hair loss and anti-dandruff composition and a preparation method thereof, and belongs to the technical field of wash supplies. The anti-hair loss and anti-dandruff composition is prepared from the following raw materials: a plant raw material, a plant extract, a caffeine composition and an oil control composition, wherein the plant raw materials comprise the following raw materials in parts by mass: 5-20 parts of ginger root, 5-20 parts of black ginger root, 5-20 parts of alpinia japonica root, 1-3 parts of ligusticum wallichii, 5-10 parts of radix sophorae flavescentis, 2-4 parts of fructus cnidii, 1-5 parts of fructus viticis, 3-5 parts of saponin, 5-8 parts of soapberry peel, 1-5 parts of dandelion, 5-8 parts of polygonum multiflorum, 1-3 parts of mulberry, 3-6 parts of cacumen biotae, 3-6 parts of mulberry leaf, 7-10 parts of purslane and 1-4 parts of mangnolia officinalis; the plant extract is prepared from the following raw materials in parts by mass: 5 to 20 parts of aloe extract, 1 to 10 parts of herba menthae extract, 5 to 20 parts of fructus forsythiae fruit extract, 5 to 20 parts of tea leaf extract, 5 to 20 parts of herba centellae extract and 1 to 10 parts of cordyceps militaris extract. The composition prepared by the invention not only has good anti-dropping and anti-dandruff effects, but also has good stability.

The invention discloses a water-retention and soil-moisture-conservation biodegradable agricultural film with a self-water-absorption structure and a preparation method of the water-retention and soil-moisture-conservation biodegradable agricultural film, and belongs to the technical field of degradable agricultural films. The agricultural film is formed by co-extruding an outer hydrophobic layer, a middle mechanical supporting layer and an inner hydrophilic layer, the outer hydrophobic layer is composed of a hydrophobic layer master batch and polyester in a mass ratio of (5-9): (1-5), and the hydrophobic layer master batch is prepared by blending and granulating polylactic acid, hydrophobic layered nanosheets and auxiliaries; the middle mechanical supporting layer is composed of a mechanical supporting layer master batch and polyester in a mass ratio of (5-9): (1-5), and the mechanical supporting layer master batch is prepared by blending and granulating polylactic acid, a bio-based filler and an auxiliary agent; the inner hydrophilic layer is composed of a hydrophilic layer master batch and polyester in a mass ratio of (5-9): (1-5), and the hydrophilic layer master batch is prepared by blending and granulating polylactic acid, super-hydrophilic nanoparticles and an auxiliary agent; the prepared agricultural film has water retention, hydrophobic and hydrophilic functions at the same time, has excellent mechanical strength and toughness, and can meet use requirements.

The invention relates to a semi-conductive shielding material based on dynamic vulcanization and a preparation method thereof, and belongs to the technical field of cable materials. The semi-conductive shielding material comprises a continuous phase, a dispersed phase, a cross-linking agent, a functional additive and a conductive filler, the dispersed phase is ethylene propylene diene monomer and is dispersed in the continuous phase; the conductive filler is limited to be dispersed in the continuous phase and is lapped to form a conductive network; the continuous phase is polyethylene. According to the scheme provided by the invention, selective dispersion of the conductive filler can be realized, the electrical performance and mechanical performance of the semi-conductive shielding material can be improved while the use amount of the conductive filler is reduced, and the semi-conductive shielding material has the advantage of being recyclable.

The utility model provides a glass assembly and a vehicle. The glass assembly comprises a glass body, an injection molding body, a plurality of first connecting pieces and a light-emitting assembly. The glass body is provided with a light-transmitting area. The injection molding body is fixedly connected to the surface of the glass body and arranged around the edge of the light-transmitting area. The multiple first connecting pieces are arranged around the edge of the light-transmitting area at intervals, and at least part of each first connecting piece is embedded into the injection molding body. The light-emitting assembly comprises a shell and a light source, the shell is detachably connected with the multiple first connecting pieces, a containing space is formed between the shell and the glass body, and the light source is located in the containing space and arranged opposite to the light-transmitting area. According to the technical scheme, the light-emitting assembly can be detachably connected with the glass, so that the light-emitting assembly and the glass can be independently maintained and replaced.

The utility model discloses a plug-in frame type battery pack which comprises a group of battery cells arranged side by side, and main air ducts are arranged on polar column surfaces at the two ends of the battery cells and the upper and lower side surfaces of a battery; the battery cell shell is composed of a front end plate, a rear end plate, side cover plates on the left side and the right side, a top cover plate and a bottom cover plate, a battery cell mounting cavity is defined by the front end plate, the rear end plate, the side cover plates on the left side and the right side, the top cover plate and the bottom cover plate, and a group of battery cells arranged side by side are mounted in the battery cell mounting cavity; and the liquid cooling plate is fixedly arranged between the battery cell and the bottom cover plate and is used for carrying out bottom water-cooling heat dissipation on the battery cell. According to the plug-in frame type battery pack provided by the utility model, two thermal management modes of liquid cooling and air cooling are integrated, heat dissipation modes are allowed to be flexibly switched according to environments, the heat dissipation efficiency of the battery is optimized, and the service life of the battery is prolonged. And through the precisely designed protective shell, the production cost and the maintenance complexity are reduced, and the stability and the safety of the system are improved.

The invention discloses low-VOC (volatile organic compound) formula waterborne polyurethane industrial paint and a preparation method thereof, and relates to the field of paint. The waterborne polyurethane industrial paint with the low VOC formula is prepared from a waterborne polyurethane emulsion, fluoride-based nanoparticles, aliphatic isocyanate, a self-repairing polymer, carbon nanotubes, silane quaternary ammonium salt, a photosensitive curing agent, indium tin oxide, polydimethylsiloxane, zinc pyrithione, polyether siloxane and ammonium tripolyphosphate. According to the waterborne polyurethane industrial paint, the waterborne polyurethane emulsion, the self-repairing polymer, the carbon nanotubes, the indium tin oxide, the aliphatic isocyanate, the polyether siloxane and the like are combined, and the waterborne polyurethane industrial paint is low in VOC, excellent in wear resistance, weather resistance, static resistance and self-repairing performance, environmentally friendly, safe, wide in application prospect and suitable for popularization and application. And lasting protection and attractive effects can be provided for the industrial environment, and meanwhile the convenience of operation and maintenance is improved.

The invention discloses a heating ventilation air conditioner intelligent installation regulation and control system, and relates to the field of installation regulation and control, and the system comprises a management center which is in communication connection with an air conditioner data collection module, a heating ventilation air conditioner installation module, an air conditioner data analysis module, an air conditioner data processing module and a heating ventilation regulation and control module. Using state data and scale information data are collected, a user interaction interface is set, and user deviation information is investigated; according to the air conditioner analysis end, the scale information data and the use state data, a heating ventilation air conditioner twinborn model is constructed, and an air conditioner installation report is generated; obtaining a normal somatosensory value of the user according to the real-time posture information and the portrait breathing information; according to the normal somatosensory value of the user, domain source processing is carried out on the coverage area, and a heating and ventilation homotype area is obtained; according to the user interaction interface, the real-time posture information, the heating ventilation homotype area and the user deviation information, area deviation factors are obtained, and the heating ventilation air conditioner is analyzed through the area deviation factors; according to the invention, the energy consumption efficiency is improved.

The invention provides a farmland irrigation water body suspended matter capturing device and a using method, the farmland irrigation water body suspended matter capturing device comprises a hydroelectric generator and a capturing device which are arranged in a ditch in the water flow direction, the bottom of the capturing device is provided with a low-position water passing channel, the end of the low-position water passing channel is provided with a valve plate moving along with rising of the water level, and the valve plate is used for blocking the low-position water passing channel; a plurality of rotating capturing frames are arranged at the top of the capturing device, and the rotating unfolding direction of the capturing frames is the same as the water flow direction; a plurality of electrode plates are arranged on the two sides of the capturing device, and each electrode plate comprises a positive electrode and a negative electrode which are arranged on the two sides of the capturing device respectively and used for adsorbing suspended solids in water. Through comprehensive utilization of hydroelectric generation, electrode plate electrostatic adsorption, mechanical filtration and automatic adjustment technologies, the problem that existing irrigation water is high in sand content is effectively solved, cleanliness of the irrigation water is ensured, and the efficiency and quality of farmland irrigation are improved. The technical scheme is simple and convenient to operate, low in maintenance cost, environment-friendly, energy-saving and wide in application prospect.

The invention provides an efficient chemical polishing device capable of recycling polishing liquid and a process of the efficient chemical polishing device, and relates to the technical field of aluminum profile machining, the efficient chemical polishing device comprises a stabilizing frame, a switching mechanism and two symmetrically-distributed positioning shells are installed on the upper portion of the stabilizing frame, and the switching mechanism is jointly composed of a first electric motor and a conveying plate; and two sets of symmetrically-distributed conveying mechanisms are installed above the conveying plate, and each conveying mechanism is jointly composed of a second electric motor, a threaded rod, a conveying shell, a supporting shell and an extrusion strip. Rapid switching of the positions of the two working belts is achieved through the switching mechanism, after one set of working belts are polished, the other set of working belts to be polished can be rapidly moved to the working position, the idle time and the adjusting time of equipment are shortened, the continuous production process is optimized, and the production efficiency is improved. And tedious operation and long-time shutdown of traditional equipment during replacement of a machining object are avoided, efficient and smooth operation in the production process is ensured, and the comprehensive production efficiency of the equipment is further improved.

The utility model discloses a sports shoe upper and a shoe, the sports shoe upper comprises a shoe upper base layer, the shoe upper base layer comprises a first splicing part, a second splicing part and a third splicing part, the first splicing part corresponds to a forefoot area and a heel area of a human foot; the second splicing part is positioned in the middle section area of the arch between the front sole area and the heel area; the third splicing part extends along the edge of the vamp, is connected with the sole and is connected with the first splicing part and the second splicing part; the fixing line is arranged at the junction of the first splicing part, the second splicing part and the third splicing part; the vamp base layer is formed by splicing a first splicing part, a second splicing part and a third splicing part, and the splicing parts are regions which are formed by weaving TPU yarns in an interweaving mode and have different weaving intensities. According to the sports vamp and the shoe, the softness and hardness of each part of the vamp base layer are adjusted by arranging the areas with different weaving intensities on the vamp base layer, the vamp fits the foot movement of a user, and the sports performance of the user is improved.

The invention provides a material preparation route optimization method and device and electronic equipment, and relates to the field of material synthesis, and the method comprises the steps: inputting an initial text command into a large language model LLM; generating an input file and a structure file required for reflecting molecular dynamics simulation according to the initial text command; executing reaction molecular dynamics simulation based on the input file and the structure file to generate an output file; according to the output file, a simulation result score is output, and the simulation result score is used for reflecting the preparation effect of preparing the target material based on the reaction condition parameters; and outputting optimized reaction condition parameters by utilizing a large language model (LLM) based on the simulation result score. According to the present invention, the repeatability and the reliability of the material preparation are improved, the environmental protection and safety modern industrial requirements are met, and the efficient and environmental protection new path is provided for the synthesis of MXenes and other advanced materials.

The invention discloses a water environment treatment material based on composite minerals and aquatic plants and a preparation method and application thereof, and belongs to the technical field of water environment treatment. The water environment treatment material comprises the composite minerals and the aquatic plants, the composite minerals can adsorb and convert heavy metal ions, ammonia nitrogen and organic pollutants, and by combining the absorption of the aquatic plants on nutrient substances and the decomposition effect of microorganisms on the pollutants, the concentration of the pollutants in a water body can be remarkably reduced, and the water quality index is improved; the problems of water eutrophication, heavy metal pollution, organic pollution and the like are effectively solved; the photosynthesis of the aquatic plants can absorb a large amount of carbon dioxide, carbon elements are transferred into the bottom mud for long-term storage, meanwhile, the existence of the complex minerals indirectly promotes the carbon sequestration effect of the aquatic plants, the carbon sequestration capacity of the whole water body ecological system is improved, and finally the multiple purposes of water body pollution treatment, bottom mud remediation, carbon sequestration and sink increase and the like are achieved. The health and the stability of a water body ecological system are improved.

The utility model relates to the technical field of cold chain transport cases, and discloses a cold chain transport case capable of monitoring temperature in real time, which structurally comprises a transport case body, one side of the transport case body is fixedly connected with a refrigeration mechanism, and the top end of the transport case body is fixedly connected with two temperature sensors. The two temperature sensors are electrically connected with a PLC through wires, and the PLC is electrically connected with a temperature adjusting module, a wireless network module and a traffic light alarm device. The real-time temperature monitoring and early warning system is provided with the high-precision temperature sensor and the intelligent traffic light alarm device, so that real-time monitoring and early warning of temperature abnormity are ensured, and cargo loss is reduced to the greatest extent.

The utility model provides a cold-proof clothing waterproofness detection device, and relates to the clothing detection technology field, the cold-proof clothing waterproofness detection device comprises a support wall and a detection mechanism, the inner side of the support wall is provided with the detection mechanism, through the arrangement of the detection mechanism, the stability and consistency of clothing in the detection process can be ensured through the arrangement of a transmission assembly in use, and the detection efficiency is improved. The detection assembly accurately detects moisture permeation through a liquid sensor, moisture can be rapidly removed and clothes drying can be accelerated through the arrangement of the drying assembly, a fan and a heat pipe, the detection efficiency is improved, water flow can be accurately controlled through the arrangement of the water spraying assembly and a pressure adjusting nozzle, the comprehensiveness of the test is ensured, and the recovery assembly is arranged, so that the detection efficiency is improved. The water utilization rate is improved, the water level is automatically monitored through the liquid level sensor, the overflow risk is avoided, the environmental protection property and safety of the equipment are guaranteed, an efficient, accurate and user-friendly detection platform is provided, and evaluation of the waterproof performance of the clothes is more scientific and standardized.

The invention discloses a superfine high-performance admixture system with a multi-stage separation dynamic screening function and a solid waste treatment operation method, and the system comprises a vibration crushing device which is used for crushing building solid waste into small blocks and obtaining the building solid waste small blocks; the first swash plate grinding device is used for grinding the small building solid waste blocks to obtain small solid waste particles; the solid waste grinding multi-stage separation dynamic powder selecting device is used for screening small solid waste particles and obtaining fine-particle-size materials; the second swash plate grinding device is used for carrying out secondary grinding on the fine-particle-size materials; and the solid waste ground powder material flow rate control partition board material cabin is used for carrying out wind separation on the materials. The treatment procedure is simple and efficient, the construction solid waste treatment operation is reasonable, the problems that the construction solid waste pollutes the environment, the treatment process is complex, and the cost is high are solved, and remarkable economic, environmental and social benefits are achieved.

The invention relates to an antibiotic-free feed additive for breeding crucian carps and a preparation method of the antibiotic-free feed additive, and belongs to the technical field of feed additives. According to the feed additive, seaweeds and Chinese herbal medicines are used as raw materials and are subjected to staged fermentation with compound probiotics, a phagostimulant is added, and freeze drying is performed to prepare the antibiotic-free crucian breeding feed additive, so that the prevalence rate of crucian can be reduced, the survival rate can be increased, and the growth of crucian can be accelerated; the problem of drug resistance caused by antibiotic abuse in crucian breeding in the prior art can be solved, and unification of high antibacterial activity, biological safety and environmental friendliness in crucian breeding is achieved.

The invention discloses a BGA (Ball Grid Array) area flatness PCB (Printed Circuit Board) and a preparation method thereof in the technical field of PCB production processes, and aims to solve the problem that the flatness cannot meet the actual production requirement in the prior art. The preparation method comprises the following steps: obtaining a carrier, a prepreg and a peelable copper foil; sequentially laminating the carrier, the prepreg and the peelable copper foil to form an upper, middle and lower laminated structure; laminating and pre-curing the upper, middle and lower laminated structure by adopting a laminating machine to form a false layer; laminating the false layer with a preset inner-layer core plate, a press steel plate and a buffer material to form a multi-layer PCB structure; and stripping the strippable copper foil from the multi-layer PCB structure, and removing the false layer to obtain the BGA area PCB with the preset flatness. According to the method, the flatness range of the BGA area can be controlled within 50 # imgabs0 #.

The invention discloses a flexible friction nano-generator material based on silk fabric and Ecoflex as well as a preparation method and application of the flexible friction nano-generator material. The invention mainly comprises a positive friction layer material SF / beta-LGF / ZnO and a negative friction layer material Ecoflex / Ag-MMT. Specifically, the positive friction layer is prepared through the following steps that firstly, beta-lactoglobulin is converted into amyloid fibril at the specific pH and temperature, then beta-LGF is loaded on the surface of silk fabric through a cross-linking agent, and a ZnO film grows on the surface of the silk fabric through the atomic layer deposition technology. The negative friction layer is based on biodegradable Ecoflex, and the electrical property of the negative friction layer is improved by doping Ag intercalated montmorillonite. According to the invention, not only are the electron donating and electron withdrawing capabilities of the silk fabric and Ecoflex enhanced, but also the electric output performance of the friction nano-generator is remarkably improved, and low-frequency mechanical energy can be efficiently converted into electric energy.

The invention relates to the technical field of electroplating water treatment, in particular to a new energy battery busbar electroplating water treatment device which comprises a support, a sleeve mechanism, a filtering assembly, a rotating mechanism, a sealing cover and a driving machine. The support is installed on the ground, the sleeve mechanism is installed on the support, and a transition cavity is formed in the sleeve mechanism and used for collecting treated water and discharging the water from a water outlet; the filtering assembly is mounted in the sleeve mechanism, and electroplating wastewater is primarily filtered through a filtering substance placed on a filtering partition plate in the filtering tank; the rotating mechanism is mounted in the middle of the sleeve mechanism, stirring blades in the rotating mechanism drive electroplating wastewater to rotate, and after centrifugal layering treatment, water in the middle enters the sleeve mechanism through an overflow port; the sealing cover is mounted on the sleeve mechanism; and the driving machine is mounted at the top end of the rotating mechanism and drives the rotating mechanism to rotate or translate up and down.

The invention belongs to the technical field of underwater light sources, and relates to a self-adaptive wide-spectrum underwater light source system. A self-adaptive broadband spectrum underwater light source system comprises an FPGA unit, a sensor unit, an illumination matrix and a camera. The FPGA unit analyzes image data captured by the camera and environmental data acquired by the sensor unit in real time through a light source adjustment algorithm, and adjusts the brightness, color temperature and spectrum output of the illumination matrix so as to optimize image quality under different water quality and water depth conditions; wherein the light source adjustment algorithm adjusts the RGB light intensity output weight by calculating the chromatic aberration between a standard color card and a real-time image; and outputting a final PWM signal through the PID controller so as to adjust the illumination matrix. According to the system, advanced image processing technology and environment monitoring technology are combined, and illumination is adjusted in real time through an integrated control unit, so that the image quality of underwater photography is optimized.

The invention provides a process and equipment for secondary environment-friendly recycling of a waste solvent, which are applied to the technical field of production and manufacturing, and are characterized in that the waste solvent of an enameled wire is filtered, the filtered recycled solvent is sampled, the specific proportion of paint resin in the solvent is analyzed, and then the proportion of high-solid-content paint resin needing to be added is calculated according to a measurement result; and mixing the high-solid-content paint resin with the recovered solvent according to the calculated ratio, pumping the high-solid-content paint resin from the bottom of the container by using a circulating pump, and mixing the high-solid-content paint resin with the recovered solvent in an upward spraying manner, so that the high-solid-content paint resin and the recovered solvent are fully mixed to form the low-solid-content paint resin capable of being secondarily utilized. According to the secondary environment-friendly recycling process for the waste solvent, the recycling rate of the waste solvent is increased, the performance of the recycled solvent is ensured by accurately controlling the proportion of paint resin, and the dual requirements of environment protection and economic benefits are met.

The invention relates to a method for preparing SiC fibers, in particular to a method for preparing SiC fibers from balsa wood and lignite. The invention aims to solve the problems of high cost, complex process, strict equipment requirements and difficulty in realizing large-scale production of the existing SiC fiber. The preparation method comprises the following steps: 1, preparing wood fibers; 2, preparing superfine pulverized coal; 3, preparing a wood fiber-lignite composite material; 4, carbonizing; and 5, carbon thermal reduction reaction. The method is used for preparing the SiC fiber from the balsa wood and the lignite.

The invention discloses waste water recycling equipment for corrugated board production, and relates to the technical field of waste water treatment.The waste water recycling equipment comprises a settling box, a water outlet pipe is fixedly connected to one side of the settling box, a water inlet pipe is fixedly connected to the side, away from the water outlet pipe, of the settling box, and sliding grooves are symmetrically formed in the upper end face of the settling box; the liquid collecting box can be driven to move intermittently and equidistantly on the upper end face of the settling box, a flocculating agent in the liquid collecting box is uniformly sprayed on wastewater in the settling box, the flocculating agent can be uniformly sprayed to all corners of the settling box, and the problem that the local concentration is too high or too low due to direct feeding through a traditional single inlet is solved; the uniform distribution enables the flocculation reaction in the wastewater to be more consistent, and the obvious difference of flocculation effects among different areas is reduced, so that floating matters and suspended matters in the wastewater are more effectively removed, the overall efficiency of wastewater treatment is improved, the quality of the treated wastewater is improved, and the wastewater is more in line with environmental protection standards and subsequent treatment requirements.