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197results about How to "Solve water problems" patented technology

A w/o/w active heavy oil plugging agent for oil wells and its preparation method

The invention discloses a W / O / W type active viscous oil blocking agent. The blocking agent comprises internal phase water, viscous oil and external phase water. A nonionic surfactant is adopted between the internal phase water and the viscous oil. An ionic surfactant is adopted between the viscous oil and the external phase water. According to the invention, a W / O / W composite structure is adopted, W / O with a relatively large viscosity is coated by the external phase water layer, such that defects in prior arts of high viscosity, high construction pressure and poor selectivity upon an oil-water layer during an active viscous oil blocking agent injection process are overcome. With the blocking agent provided by the invention, the ground fluidity is good, and the injection pressure is low. When the blocking agent enters the stratum, the emulsion is demulsified, and W / O emulsion with a high viscosity is released, such that oil well water exits can be effectively blocked, and defects of existing active viscous oil blocking agents are overcome. The technical scheme provided by the invention is especially suitable for technical features of offshore oilfields.
Owner:CHINA NAT OFFSHORE OIL CORP +1

Capacitance detection apparatus and method

ActiveCN101477152ASolve the water problemHigh-precision high-speed capacitance detectionResistance/reactance/impedenceInput/output processes for data processingCapacitanceResistance capacitance
The invention discloses a capacitance detection device and a capacitance detection method. The device comprises a comparator, an integrating capacitor, and an analog-to-digital converter, wherein the comparator is used for comparing voltage so as to control the discharge time of a measured capacitor; the integrating capacitor is used for integrating the discharge charge of the measured capacitor and producing an integrating voltage which has certain relation with the measured capacitor; and the analog-to-digital converter is used for converting the integrating voltage into corresponding digital quantity. The device and the method can realize higher-accuracy high-speed capacitance detection, and can be used for identifying the capacitance in a resistance-capacitance network and detecting the capacitance; and the characteristic can solve the excessive problem in capacitive touch application.
Owner:TIANJIN SIGMA MICROELECTRONICS CO LTD

Moisture capture device

The invention discloses a moisture capture device. The moisture capture device comprises a wave-shaped moisture condensation surface and a water storage device, wherein a radiation refrigeration material serves as a base plate of the moisture condensation surface, protruding portions of the wave-shaped moisture condensation surface are hydrophilic protruding portions, concave portions of the wave-shaped moisture condensation surface are hydrophobic concave portions, the water storage device is arranged at the bottom end of the moisture condensation surface, and droplets are formed by moisture captured by hydrophilic protruding portions, then transferred to hydrophobic concave portions after growing up and transferred to the water storage device along hydrophobic concave portions. The temperature of the condensation surface can be reduced quickly due to the radiation refrigeration material, the moisture in the air is captured by hydrophilic protruding portions and is condensed into droplets, and droplets are transferred to hydrophobic concave portions after growing up and are quickly transferred to the water storage device along hydrophobic concave portions. The device is simple in structure and environment-friendly, can be used in arid areas and semi-arid areas to mitigate the problem of water shortage to a certain extent and can be used in non-arid areas to provide domestic water and production water.
Owner:WUHAN UNIV

Method for determining capacity of underground reservoir of mine

ActiveCN102778215AEasy to know the water storage capacityAchieve reasonable protectionMeasurement devicesWater storageWater resources
The invention discloses a method for determining capacity of an underground reservoir of a mine. The method includes steps of 1, measuring rock mass strength, coal seam buried depth and exploitation dimensions of the underground reservoir of the mine; 2, setting a reference underground reservoir of the mine with rock mass strength, coal seam buried depth and exploitation dimensions which are consistent with those of the to-be-measured underground reservoir of the mine; 3, measuring water storage capacity V2, reservoir area S and water head H of the reference underground reservoir of the mine and computing a water storage coefficient R according to the equation of R=V2 / SXH; and 4, measuring reservoir volume V1 of the to-be-measured reservoir of the mine and computing the capacity of the to-be-measured reservoir of the mine according to the equation of V=V1XR. By the aid of the method, the capacity of the underground reservoir of the mine can be obtained, so that water resources of a mining area can be regulated.
Owner:CHINA SHENHUA ENERGY CO LTD +1

Technology for treating and recycling fracturing flow-back fluid of oil and gas field

InactiveCN103663877ASatisfy the requirements of preparing fluid for fracturing flowback fluidSolve water problemsMultistage water/sewage treatmentFlocculationFracturing fluid
The invention discloses a technology for treating and recycling a fracturing flow-back fluid of an oil and gas field. The technology comprises the steps as follows: oil-separation recovery is performed on a waste fluid of the fracturing flow-back fluid, so that a recovered waste fluid is obtained; the recovered waste fluid is degraded, so that a degraded waste fluid is obtained; flocculation and flotation are performed on the degraded waste fluid, so that floccules are obtained; and the floccules are separated from the fluid, so that a fluid for preparing an oil and gas field fracturing fluid is obtained. According to the technology, sump oil and waste fluid resources are recycled fully, and the treated waste fluid satisfies a standard requirement of preparation of the fracturing flow-back fluid.
Owner:张云龙

Agricultural tool for spraying pesticide to garden trees

The invention discloses an agricultural tool for spraying pesticide to garden trees. The agricultural tool comprises a base, a pesticide tank and an atomizer, four supporting legs are arranged on the lower side of the base, a buffering wheel is arranged at the lower end of each supporting leg, a pesticide adding tank, a motor and a water adding tank are arranged at the upper end of the pesticide tank, a first rotating shaft is arranged at the lower end of the motor, stirring rods in array distribution are arranged on the first rotating shaft, a bottom stirring rod is arranged at the bottom of the first rotating shaft, a water suction pump is arranged at the bottom of the pesticide tank, a plastic hose is arranged at the upper end of the atomizer, a nozzle is arranged at the tail end of the plastic hose, a cylinder is arranged on the right side of the atomizer, and a supporting rod is arranged at the upper end of the cylinder. The agricultural tool solves the problem that a single container is needed for pesticide preparing, is good in mixing and dissolving effect, solves the problem of water consumption in gardens and is convenient for water taking and tree spraying.
Owner:临泉县生产力促进中心

Environment-friendly and energy-saving courtyard type rain water collecting, treating and recycling system

The invention discloses an environment-friendly and energy-saving courtyard type rain water collecting, treating and recycling system, and specifically relates to the environment-friendly and energy-saving courtyard type rain water collecting, treating and recycling system which is suitable for an arid area and a semi-arid area. The environment-friendly and energy-saving courtyard type rain water collecting, treating and recycling system is characterized by comprising a rain water collecting pool, a flow distributing well, a flow releasing pool, a constructed wetland, a rain water storing pool, a sand filtering pool and a clean water pool, wherein the upper-layer rain water collecting pool, the flow distributing well, the constructed wetland and the sand filtering pool are connected in sequence, the lower-layer flow releasing pool, the rain water storing pool and the clean water pool are connected in sequence, the flow releasing pool is located under the rain water collecting pool, the rain water storing pool is located under the flow distributing well and the constructed wetland, and the clean water pool is located under the sand filtering pool. According to the environment-friendly and energy-saving courtyard type rain water collecting, treating and recycling system disclosed by the invention, the occupied area is small, the energy consumption is low, the operating cost is low, and the maintenance is simple; the functions of beautifying a courtyard and purifying air are obtained as green ecological plants are planted on the constructed wetland; the courtyard waterlogging can be reduced, environmental pollution caused by initial rain water can be reduced, the living standard of a farmer can be increased, and meanwhile, the rural ecological environment can also be effectively improved.
Owner:安徽锋亚环境技术有限公司

W/O/W type active viscous oil blocking agent used in oil well, and preparation method thereof

The invention discloses a W / O / W type active viscous oil blocking agent. The blocking agent comprises internal phase water, viscous oil and external phase water. A nonionic surfactant is adopted between the internal phase water and the viscous oil. An ionic surfactant is adopted between the viscous oil and the external phase water. According to the invention, a W / O / W composite structure is adopted, W / O with a relatively large viscosity is coated by the external phase water layer, such that defects in prior arts of high viscosity, high construction pressure and poor selectivity upon an oil-water layer during an active viscous oil blocking agent injection process are overcome. With the blocking agent provided by the invention, the ground fluidity is good, and the injection pressure is low. When the blocking agent enters the stratum, the emulsion is demulsified, and W / O emulsion with a high viscosity is released, such that oil well water exits can be effectively blocked, and defects of existing active viscous oil blocking agents are overcome. The technical scheme provided by the invention is especially suitable for technical features of offshore oilfields.
Owner:CHINA NAT OFFSHORE OIL CORP +1

Desalination treatment method for high-salt water

The invention relates to a desalination treatment technology for high-salt water, in particular to a desalination treatment method for high-salt water. The desalination treatment method sequentially comprises the following steps: step 1, electric floatation; step 2, microelectrolysis fluidized bed; step 3, Fenton reaction; step 4, neutralization softening; step 5, membrane filtering; step 6, membrane concentrating; step 7, evaporating and collecting condensed water, namely purified fresh water. The desalination treatment method has the characteristics that the treatment effect is great, the service life of equipment is effectively prolonged, and the user performance of the obtained condensed water is high.
Owner:东莞市英硫净水服务有限公司

Process for reusing tail water in papermaking and pulping

The invention relates to a process for reusing tail water in papermaking and pulping. The technology comprises the following specific steps of: (1) feeding wastewater into an equalization basin for premixing; (2) transferring the premixed wastewater into an air flotation system, and reducing COD (Chemical Oxygen Demand) and SS (Suspended Solids); (3) transferring the water treated by the air flotation system into an ozone system, and removing partial COD; (4) adjusting pH (Potential of Hydrogen) of the water treated by the ozone system, transferring partial water into an ultrafiltration system for pre-treating; transferring the other part of water into an electro-adsorption system, and directly feeding the water generated by the electro-adsorption system into an allocation system; (5) transferring the water subjected to ultrafiltration treatment into a reverse osmosis system; (6) transferring the fresh water subjected to reverse osmosis treatment into the allocation system for reusing, and transferring the concentrated water subjected to reverse osmosis treatment into an electroosmosis system for concentrating; and (7) feeding the fresh water subjected to electroosmosis into the allocation system for reusing, and feeding the concentrated water subjected to electroosmosis into an evaporating system for treating. The technology for reusing the tail water in papermaking and pulping realizes the recovery of water resources in the papermaking and pulping industry, and the treated water can be allocated according to the demand on water use of an enterprise, thus meeting the water supply under different requirements for water quality.
Owner:NANJING UNIV OF TECH +1

High-salinity composition having functions of resisting dentine hypersensitivity and whitening, toothpaste and preparation method of toothpaste

The invention discloses a high-salinity composition having functions of resisting dentine hypersensitivity and whitening. The composition comprises the following components in parts by weight: 4-8 parts of potassium nitrate, 0.1-5 parts of pyrophosphate and 3-5 parts of auxiliary sensitivity resisting ingredient; the invention further discloses application of the high-salinity composition in a toothpaste, a tooth powder, a tooth gel, a tooth paste or a cream preparation; the invention further discloses a toothpaste comprising the high-salinity composition, and the weight percentage of the high-salinity composition in the whole toothpaste is 7-18%; the invention further discloses a preparation method of the toothpaste: a humectant is added in a container, then a thickener is added to stir evenly, a sweetening agent, a preservative and a surfactant are added to be stirred evenly, the high-salinity composition is added and stirred evenly, an abrasive and water are added, a fragrance modifier is added after stirring evenly, and the mixture is fully stirred and degassed in vacuum to complete the preparation of the toothpaste. The high-salinity composition and the toothpaste have excellent double effects of whitening and resisting hypersensitivity, the components work synergistically, and the effect is more remarkable.
Owner:CHONGQING DENCARE CORP

Solar cell for mountain area power generation

The invention discloses a solar cell for mountain area power generation. The solar cell comprises a solar cell box, a solar cell, an aluminium alloy frame, a base and a stone column. The solar cell box is provided with a plurality of springs which are connected to a baffle plate. The bottom surface of the solar cell box is hinged to a pillar and a hydraulic cylinder. The lower end of the hydraulic cylinder is connected to a U-shaped groove through a pin shaft. The bottom surface of the U-shaped groove is fixed to the stone column. The direction of the U-shaped groove is configured as that when the bottom surface of the solar cell box is parallel to a horizontal plane, and the central axis of the U-shaped through groove of the U-shaped groove is perpendicular to the rectangular side surface of the solar cell box. According to the solar cell, through adjusting the angle of the solar cell box to defend the impact of hail, the solar cell is protected, the service life is prolonged, at the same time, toughened glass and an EVA material layer are cancelled, the total amount of receiving sun light by a solar cell panel is increased, the total amount of converting solar energy into electric energy is substantially improved, and the solar cell has a wide use value in a remote area without electric power.
Owner:四川中森亿超科技有限公司

Method for cultivating tilapia by sea ice water

A method for cultivating tilapia by sea ice water comprises the following steps: (1) after seawater is frozen in winter, sea ice is collected into a shoreside water storage pond; (2) after the sea ice is melted to form sea ice water in spring, the sea ice water is delivered into a first-stage purifying pond; (3) the sea ice water carries out first-stage edulcoration, purification and filtration in the first-stage purifying pond and then is delivered into a second-stage purifying pond; (4) the sea ice water carries out second-stage edulcoration, purification and filtration and then is delivered into an alexipharmic sea ice water cultivation pond; (5) tilapia fries are placed into the alexipharmic sea ice water cultivation pond and cultivated; and (6) water quality monitoring and cultivation management are carried out in the cultivation process. Novel water source sea ice water has good purification action in the freezing process, and the salinity of melted sea iced water is between 7g / L and 11g / L so that the melted sea ice water is just an optimal water environment for the growth of the tilapia, thereby the invention opens a new way for the sea ice water on the agricultural multipurpose use of coastal beaches and low-lying alkaline lands.
Owner:BEIJING NORMAL UNIVERSITY

Method for producing edible salt from sea water through industrial process and processing device of edible salt

The invention discloses a method for producing edible salt from sea water through an industrial process and a processing device of the edible salt. The method for producing edible salt from sea water through the industrial process comprises the following steps: extracting seawater, preprocessing, concentrating, preheating, concentrating and crystallizing. The processing device of the edible salt comprises a preprocessing unit, a reverse osmosis unit, a pre-heater, a mechanical steam recompression evaporation device and a post-processing unit. Compared with the salt pan method, the method has the advantages that the large quantity of soil is saved; meanwhile, the influence of season is avoided, the investment is low and the labor is saved. By taking annual output of 50000 tons of edible salt as an example, an area of nearly 2500 acres is occupied in the salt pan method, but an area of only 50 acres is occupied in the method; the number of the required persons in the method is only 1 / 10 that of the required persons in the salt pan method; the basic investment for producing every ton of salt through the method is only 1 / 5 that of the salt pan method; the purity and the concentration of brine of the method are higher than those of the salt pan method; important chemical raw materials such as calcium sulfate, magnesium sulfate, potassium chloride, calcium chloride and bromine water can be extracted from the crystallized bittern; the energy needed for operation of the device is clean energy which is electric energy; the device is high in degree of automation, capable of continuously producing the salt in 24 hours, free of steam and really emission-free and pollution-free.
Owner:HANGZHOU FANGSUN LIGHT IND MACHINERY MFG

Water-supplying method for ensuring tobacco seedling drought-resisting transplanting through rainwater accumulating

The invention discloses a water-supplying method for ensuring tobacco seedling drought-resisting transplanting through rainwater accumulating. The method includes the steps that in February every year, a tobacco field with inclination is selected, and ridging is performed on the slope of the tobacco field; soil of ridge bodies is pounded, field ditches are dredged, plastic films mulch the adjacent ridge bodies and field ditches and are pressed tightly, and a W-shaped rainwater accumulating lawn is formed ; a pit is dug at the lowest place of the tobacco field, and pesticides are spread at the bottom and the periphery of the pit, so that underground insects are prevented from damaging the tobaccos; then, mulching of plastic films is performed, anti-leakage treatment is performed on the mulching plastic films, and the situation that water leakage does not exist is ensured, so that a water reservoir is formed; the rainwater accumulating lawn and the water reservoir form a simple rainwater accumulating pool of the tobacco field. By the adoption of the method for ensuring the tobacco seedling drought-resisting transplanting through the rainwater accumulating, for regions where tobaccos are suitable for being planted, but the tobaccos often suffer spring drought, in the beginning and the middle of March and April, a small amount of ineffective rainfall for several times is effectively accumulated. Therefore, when the drought-resisting transplanting is performed on the flue-cured tobaccos in advance in due time, the problem of required water supply is solved, so that yield and quality of the flue-cured tobaccos are improved.
Owner:GUIZHOU TOBACCO CORP QIANXINAN CORP

Flue gas cleaner with integration of desulfurization, denitrification, mercury removal and dust removal

ActiveCN105056678AReduce resistanceSolve the blower with water and serious blockageCombination devicesFlue gasPrecipitation
The invention relates to a flue gas cleaner with integration of desulfurization, denitrification, mercury removal and dust removal. The flue gas cleaner comprises an integrated cleaning tower arranged on a base, a spiral flue duct, a dry absorbing and cleaning agent applying device and a wet absorbing and cleaning agent applying device, wherein an automatic slag remover, a flocculation and precipitation cleaning working zone, an inner precipitation circulating zone and an outer precipitation circulating zone are arranged in the base; an inner wall cleaning fluid collecting water channel is formed between the inner precipitation circulating zone and the outer precipitation circulating zone; the outer precipitation circulating zone is divided to form winding paths by a transverse partition board; the integrated cleaning tower is divided into a demisting and dewatering cleaning working zone, an absorption cleaning working zone and an oxidation cleaning working zone by a gas-water separator; an annular sprayer, a backwash cylindrical sprayer and a demisting filter screen are arranged in the demisting and dewatering cleaning working zone respectively; a main cylindrical sprayer is arranged in the absorption cleaning working zone; a cylindrical oxidation cleaning agent sprayer is arranged in the oxidation cleaning working zone; a flue gas outlet and a spray circulating system are arranged at the top of the integrated cleaning tower respectively. The flue gas cleaner has significant cleaning effect.
Owner:孙立刚

Tech. process for reducing mineralization of extracting oil sewage

A process for demineralizing the sewage in oil field, which contains oil, polymers and high-mineralized water, includes such steps as coagulating, deposition, air floating, filtering, chemical cleaning in a circulating membrane unit for further treating, demineralizing in a nano-modified ion exchange unit, desalting, and using the treated water to prepare polymer for reusing it.
Owner:HARBIN INST OF TECH +1

Monitoring system and monitoring method of water conditions in water reservoir

The invention relates to a monitoring system of water conditions in a water reservoir. The monitoring system comprises a water condition detection module, a data processing module and an adjusting module, wherein the water condition detection module is used for detecting water condition data and transmitting the water condition data to the data processing module; the data processing module is used for comparing the water condition data with a pre-set water condition data threshold value, and transmitting a corresponding adjusting instruction to the adjusting module according to a comparing result; the adjusting module is used for receiving the adjusting instruction transmitted by the data processing module and adjusting the water conditions according to the instruction. The monitoring system has the characteristics of monitoring and automatically adjusting water levels and water quality in the water reservoir in real time.
Owner:GUILIN TENGRUI ELECTRONICS TECH CO LTD

Corrugated paper production method using waste paper pulping to improve fiber utilization rate

The invention discloses a corrugated paper production method using waste paper pulping to improve the fiber utilization rate. The method comprises the following steps: waste paper pulp adjustment, waste paper pulp soaking and swelling, waste paper pulp puffing, waste paper pulp breaking, shredded kraft paper puffing, kraft paper pulp breaking, residue removal and screening, mixing with a grindingaid, grinding for forming a pulp, mesh papermaking pressing and subsequent papermaking. The waste paper and the shredded kraft paper are used to produce the corrugated paper, and the papermaking material is sufficiently preprocessed before the above pulp breaking step to maximally dissociate fibers in the papermaking material in the pulp breaking step and keep the integrity of the fibers, so the utilization rate of secondary fibers in the papermaking step is improved. The method has the advantages of simple process, energy-saving, environmentally-friendly, clean and pollution-free production process, great reduction of fiber damages and the broken rate of the fibers in the pulping process, and high fiber utilization rate, and the toughness and the strength of the prepared corrugated paperare greatly improved.
Owner:东莞顺裕纸业有限公司

Magnetic coagulation integral wastewater treatment system and method

The invention discloses a magnetic coagulation integral wastewater treatment system which comprises a water inlet tube, a dosing device, a magnetic powder adding device, a reaction tank and a settling pond, wherein the water inlet tube, the dosing device and the magnetic powder adding device are respectively communicated with the reaction tank, and wastewater, chemicals and magnetic powder are added into the reaction tank; the reaction tank is arranged at the inner upper part of the settling pond and is used for performing magnetic coagulation treatment on wastewater; the settling pond is used for receiving wastewater output from the reaction tank, used for settling down suspended flocculating constituents in the wastewater, and used for outputting purified water; the settled suspended flocculating constituents are discharged out through a sludge discharge pipeline. With the combination of the reaction tank and the settling pond, not only is wastewater rapidly and stably treated, but also a single coagulant and coagulant aid stirring tank is eliminated, so that the floor space is greatly reduced, consumption of the magnetic powder in different tanks is avoided, the removal efficiency is improved, corollary equipment and energy consumption are reduced, the sewage treatment cost is lowered, the system can be widely used in residential areas, and the problem of water supply of the residential areas can be solved.
Owner:温州大学苍南研究院

Cleaning control method for home appliance cleaning box and home appliance

The invention belongs to the technical field of home appliances, and in particular relates to a cleaning control method for a home appliance cleaning box and a home appliance. The method comprises thefollowing steps: acquiring to-be-cleaned information in the home appliance cleaning box during cleaning and calculating water volume information needed during cleaning according to the to-be-cleanedinformation and generating a cleaning control command; and controlling the home appliance to be cleaned according to the cleaning control command. The method can control the water volume, and the water inlet amount, the frequency of a circulating water pump, the spray amount and the water inlet amount are related to quantity or clean degree of to-be-cleaned bowls and chopsticks, so that the problem of halfway cleaning, poor cleaning effect and waste of water and electric energy is solved to a great extent. A user does not need to arrange or adjust the water inlet amount manually, so that the cleaning efficiency can be improved, the water is saved, a purpose of being efficient and energy-saving is achieved, and the use experience and comfort level are improved.
Owner:GREE ELECTRIC APPLIANCES INC

Cycling water integrated excrement treatment toilet

The invention relates to an environmental-friendly toilet, in particular to a cycling water integrated excrement treatment toilet. The cycling water integrated excrement treatment toilet comprises a toilet body; the toilet body consists of a container; a pressure tank, a flushing device, a microorganism filtering box, a biological activated carbon filtering box and a clean water tank are arranged in the container; the water outlet end of the pressure tank is connected with the water inlet end of the flushing device; the water outlet end of the flushing device is connected with the water inlet end of the microorganism filtering box; the water outlet end of the microorganism filtering box is connected with the water inlet end of the biological activated carbon filtering box; the water outlet end of the biological activated carbon filtering box is connected with the water inlet end of the clean water tank; the water outlet end of the clean water tank is connected with the water inlet end of the pressure tank. The cycling water integrated excrement treatment toilet can degrade excrement of people into odorless and transparent liquid, can implement water cycling flushing and zero discharge without clearing excrement slag, and not only solves the problem of a toilet water source, but also can reach the zero discharge standard of the toilet.
Owner:四川绿华宏远环保科技有限公司

Method for making tea-based beverage through capsule beverage machine

The invention discloses a method for making a tea-based beverage through a capsule beverage machine, and belongs to the technical field of beverage preparation. According to the method for making thetea-based beverage through the capsule beverage machine, the problem that a tea-based beverage made by an existing tea making machine is low in quality is solved. According to the method for making the tea-based beverage through the capsule beverage machine, the capsule beverage machine comprises a brewing head provided with a water inlet pricking needle and a leading-out pricking needle, a brewing cup for accommodating a capsule, and a liquid supplying mechanism; and the liquid supplying mechanism communicates with the water inlet pricking needle, and a tea raw material accommodating cavity is formed in the capsule. The method for making the tea-based beverage comprises the steps that a water-absorbing stage is conducted, specifically, the liquid supplying mechanism leads brewing liquid into the tea raw material accommodating cavity through the water inlet pricking needle, so that tea raw materials are soaked and absorb water; a tea extracting stage is conducted, specifically, the liquid supplying mechanism leads the brewing liquid into the tea raw material accommodating cavity through the water inlet pricking needle, and soluble substances in the tea raw materials are extracted to form tea liquid; and a tea discharging stage is conducted, specifically, the tea liquid in the tea raw material accommodating cavity is discharged through the leading-out pricking needle.
Owner:杭州易杯食品科技有限公司

Water-borne wood paint and preparation method of water-borne wood paint

The invention provides water-borne wood paint, which comprises the following ingredients in percentage by weight: 10 to 20 parts of deionized water, 1 to 5 parts of propylene glycol, 1 to 3 parts of base association type thickening agents, 0.05 to 0.5 parts of dimethylethanolamine, 0.01 to 0.5 parts of non-silicone mineral oil system defoaming agents, 0.05 to 0.3 parts of water-borne carboxymethyl cellulose, 0.2 to 1.2 parts of ethanol, 60 to 80 parts of water-borne nanometer core-case crylic acid polymer dispersoid, 3 to 10 parts of water-borne fluorine-containing polyurethane nanometer dispersoid, 1 to 5 parts of alcohol ester twelve coalescing agents, 0.01 to 0.05 parts of fluorine flatting agents and 0.1 to 0.3 parts of anticorrosive and bacterium prevention agents. The water-borne wood paint has the advantages that the water-borne fluorine-containing polyurethane nanometer dispersoid is used as the core technology and is organically combined with water-borne auxiliaries such as the fluorine flatting agents, the problem that the wood surface cannot be easily moistened by the water-borne wood paint because the water surface tension is strong is solved, and the problems of poor paint film adhesion force, poor boiled water resistance and the like of the ordinary water-borne wood paint are solved. The invention also provides a preparation method of the water-borne wood paint at the same time.
Owner:WENZHOU BANGXUAN TECH

Rainwater collecting and automatic irrigating device

The invention discloses a rainwater collecting and automatic irrigating device. A foot stool and a box are connected to form a supporting body of a hollow cone frustum-shaped structure, rainwater collecting cloth used for forming a rainwater collecting face is arranged at the top of the box, the edge of the rainwater collecting cloth is connected with a first-stage water storage box, the middle ofthe rainwater collecting cloth is connected with a sliding ring arranged in the first-stage water storage box, a floating ball is connected with the sliding ring, a water inlet ring used for rainwater entering is arranged between the rainwater collecting cloth and the supporting body, a water outlet is formed in the outer side of the first-stage water storage box, and a number-one switch is arranged at the water outlet; a second-stage water storage box is arranged below the first-stage water storage box, a liquid level sensor is installed in side the second-stage water storage box, and drip irrigation pipes are installed on the lower portion of the second-stage water storage box and fixed to the ground through fixing pins; meanwhile, soil moisture sensors are installed on the lower portions of the fixing pins, and number-two switches are installed on the drip irrigation pipes; the rainwater collecting cloth is used for collecting rainwater to obtain a local water source needed for irrigation, uniform irrigation is realized through the drip irrigation pipes, in this way, the effect of saving water is realized, and the demand of tree growth is met.
Owner:HUNAN AGRICULTURAL UNIV

A design method of tuned liquid damper based on building fire water tank

ActiveCN109299571ASolve the shaking frequency problemAchieve vibration dampingGeometric CADSustainable transportationEngineeringWater level
The invention discloses a design method of a tuned liquid damper based on a building fire fighting water tank. The method comprises the following steps: determining whether a fire water tank is suitable for being converted into a tuned liquid damper; When the fire water tank is suitable to be transformed into a tuned liquid damper, the difference of natural vibration period and frequency between the fire water tank and the building structure under the fire water tank is obtained. Formulate and adjust the scheme of setting up the spoiler net and water level in the fire water tank; Determine thedamping effect of fire water tank. As that disturb net is added in the fire water tank at the top of the high-rise building and the water level is controlled, both the function of the fire water tankand the TLD function can be realized, thereby playing a vibration damping role; It is not necessary to set a large number of small shallow water tanks as TLD, but to use the original fire water tankat the top of the building as TLD, which not only reduces the cost of vibration reduction but also does not affect the use of the building. Adding a spoiler net in the fire water tank does not affectthe quantity of water in the fire water tank of the building, but also can achieve the effect of vibration reduction by changing the sloshing frequency of the water.
Owner:INNER MONGOLIA UNIV OF SCI & TECH

High-efficiency flocculation device and sludge dewatering treatment system

The invention discloses a high-efficiency flocculation device and a sludge dewatering treatment system. The high-efficiency flocculation device comprises a high-efficiency flocculation mixing main body, a dry powder putting system and a bottom supporting structure; the high-efficiency flocculation mixing main body is of a box body structure composed of a plurality of box bodies including the mud-chemical mixing box and the flocculation mixing tank; a mud inlet and a mud outlet of the box body structure are formed in the upper portion; the mud-chemical mixing box and the flocculation mixing tank are internally provided with stirring devices, fluid in the mud-chemical mixing box flows in from the upper portion and flows out of the lower portion, and fluid in the flocculation mixing tank flows in from the lower portion and flows out of the upper portion; the box body structure is arranged on the bottom supporting structure; the dry powder putting system is connected with a chemical addingport in the mud-chemical mixing box. The sludge dewatering treatment system comprises the high-efficiency flocculation device and a stacking spiral machine. The high-efficiency flocculation device combines a chemical adding device and the flocculation mixing tank and can replace an original flocculation mixing tank, chemical adding device and chemical adding pump at the front end of the stackingspiral machine, the production capacity of the overall equipment is improved, the clear water is saved, the size is small, the space occupied by the equipment is saved, and discharged sewage is reduced.
Owner:SHANGHAI TECHASE ENVIRONMENT PROTECTION

Vertical revetment three-dimensional greening system and manufacturing method thereof

The invention discloses a vertical revetment three-dimensional greening system, which comprises a retaining wall, an outer waterproof layer is arranged on the side of the retaining wall, a fixed keelsteel wire rope anchor cable is embedded in the outer waterproof layer, the outer side of the outer waterproof layer is fixed with a keel through an embedded fixed keel steel wire rope anchor cable, and a long-strip planting groove is arranged on the outer side of the outer waterproof layer; the strip-shaped planting groove is connected with the keel through a hook; a spraying system is arranged above the retaining wall. And the invention also discloses a manufacturing method of the vertical revetment three-dimensional greening system. In the method, the installation of the keel in the vertical revetment planting wall is convenient, the fixed strip planting groove is fixedly provided with fixed strip planting groove hooks, the front and rear space is large, and the plant is easy to survive; the plant does not need manual irrigation, which saves water source, and is economical and practical.
Owner:CHINA FIRST METALLURGICAL GROUP

Improved production process for producing corrugated core paper by using waste paper

The invention discloses an improved production process for producing corrugated core paper by using waste paper. The improved production process comprises the steps of paper cutting, repulping, low-concentration residue removal, low-concentration filter pressing, high-concentration residue removal, high-concentration filter pressing, pulp grinding, screening, blending, paper manufacturing with pulp and formation, drying, squeezing and the like. A traditional production process is improved, an ultrasound pulp grinding process basically does not damage fiber in waste paper in the pulp grinding process, the water quantity for papermaking is decreased while the pulp grinding efficiency is improved and damaged fiber is decreased, the putting and adding amount of chemical materials is decreased,more energy is saved and the environment is protected in the production process, and high-strength corrugated core paper is produced.
Owner:东莞顺裕纸业有限公司
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