103results about How to "Easy to wash away" patented technology

The present invention discloses a fluorescence labeled acroleic acid-sodium allylsulfonate copolymer and a method for preparing the same. The method comprises the following steps: 4-bromine-1,8-naphthalic anhydride, methylamine, N-methyl diethylenediamine, and the like are used as material and is subject to amidation reaction, amination reaction, and quaternization reaction to be synthesized, and a novel fluorescence monomer 4-(N'-methyl-1-diethylenediamine)-N-methyl-1,8-naphthalimide allyl chloride quaternary ammonium salt is obtained by synthesis; and then the fluorescence monomer is copolymerized with sodium hypophosphite, acroleic acid and sodium allylsulfonate to obtain the FC-AA-SAS product. The raw materials for synthesizing the fluorescence monomer and the polymer are easy to obtain and the reaction conditions are mild. When the product is used in circulating water, the thickness of a medicament in a circulating water system can be accurately, duly and quickly measured through the variation of the fluorescence intensity, and the on-line medicine addition and the quantitative control are realized. Therefore, the on-site operation is largely simplified, and the management level is improved. The functional groups, such as sulfonic group, phosphino group and the like, are introduced into molecules, and thus the polymer has a plurality of functions, such as fluorescent tracing, anti-precipitation, disgregation and the like.

A phosphino-based mapropyl copolymer containing fluorescent group and its production are disclosed. The process is carried out by taking 4-bromine-1,8-naphthalic anhydride, glacial acetic acid and N, N-dimethyl-ethylenediamine as raw materials to obtain 4-bromine-N-(2-N,, N,-dimethylbenzidine-ethyl)naphthalimide, reacting it with sodium methoxide to induce methoxy-group to obtain 4-methoxy-N-(2-N,, N,- dimethylbenzidine-ethyl)naphthalimide, reacting it with allyl chloride to obtain fluorescent monomer 4-methoxy-N-(2-N,, N,- dimethylbenzidine-ethyl)naphthalimide allyl ammonia chloride with fluorescent characteristic and double-bond, polymerizing it with sub-sodium phosphate, maleic anhydride, acroleic acid and propenyl-sodium sulfate to obtain the final product. It has fluorescent tracting, corrosion-inhibting, scale-inhibiting and dispersion functions.

The invention discloses a low-grade iron ore dressing technique and equipment in the ore dressing technical domain, which comprises the following steps: doing rough breaking and once fine breaking; proceeding dry cleaning and sieving; milling; separating; doing magnetic cobbing and high-frequency sieving; filtering; sieving twice for ore material; obtaining the product. The ore dressing equipment comprises the following parts: rough breaking machine, fine breaking machine, dry cleaning bolter, storage bin, ball mill, separatory machine, magnetic cobber, high-frequency sieve, filter, a set of wet rougher unit between the storage bin and the separatory machine, wherein the wet rougher unit contains band conveyer, twice bolter, wet fine grinder, wet bolter and wet rougher. The invention improves the production by 1-2 times under the same energy consumption condition in comparison with the present technique and equipment, which utilizes the low-grade iron ore resource sufficiently.

The invention relates to a polymaleic acid boiler scale-inhibition corrosion inhibitor, belonging to the technical field of chemical products, and aiming at providing a polymaleic acid boiler scale-inhibition corrosion inhibitor with high scale-inhibition rate and small corrosion rate. The average molecular weight of the polymaleic acid is larger than 5500, and the components and mass percentage thereof are as follows: 50 to 70 of aqueous solution with the content of polymaleic acid being 50 percent, 15 to 25 of aqueous solution with the content of polyepoxysuccinic acid being 50 percent, 2 to 4 of citric acid, and 10 to 14 of zinc salt. The preparation method comprises the following steps of: adding the polyepoxysuccinic acid into the aqueous solution of the polymaleic acid, and then adding the citric acid and the zinc salt, fully stirring the mixture until no precipitation exists, thus obtaining the final product. In the boiler scale-inhibition corrosion inhibitor, the scale-inhibition rate can reach more than 99 percent, and the corrosion rate is less than 0.011mm/a, thus not only being economical, practical and efficient, but also having significant economic and social benefits. The polymaleic acid boiler scale-inhibition corrosion inhibitor not only can be used for water treatment in the boiler, but also can be used for scale inhibition and corrosion inhibition in circulating cooling water in electrical power and petrochemical industries, seawater desalination, central air conditioner, water heater and the like.

The present invention discloses a negative pressure drainage dressing having attraction and flushing functions. The negative pressure drainage dressing comprises a sponge body and at least one drainage conduit; one end of the drainage conduit is inserted into the sponge body; the other end of the drainage conduit is connected with a negative pressure source; and a conduit wall of the drainage conduit inserted into the sponge body is provided with a plurality of negative pressure attraction through holes. The negative pressure drainage dressing also comprises a perfusion pipeline, the perfusion pipeline is inserted into the sponge body and capable of injecting flushing liquid or soup into the sponge body to intervene in a wound, and negative pressure attraction of the wound secretion, the flushing liquid and the soup in the sponge body can be carried out by the drainage conduit. The negative pressure drainage dressing has the advantages that the liquid can be injected to the wound, the wound can be wetted and cleaned, the efficiency of attracting the secretion and edema liquid is higher, the wound can be intervened, and inhalation channels are not easy to be blocked.

The invention discloses a wood board water cutting device and method having the water circulation function and belongs to the technical field of wood-working machinery. The wood board water cutting device comprises a working platform. An inner chamber of the working platform is provided with a conveying device. Rotating shafts are arranged in the centers of the outer walls of the left side and theright side of the top of the working platform correspondingly. The front end of each rotating shaft is connected with a guiding plate. A limiting rod is arranged on the outer wall of the top of eachguiding plate. The bottom end of each limiting rod extends to the outer wall of the bottom of the corresponding guiding plate, and the connection position of each guiding rod and the corresponding guiding plate is provided with a groove. By means of the device, chippings generated in the cutting process are flushed into a filter box for centralized treatment through water obtained after cutting, and the problem that the chippings splash everywhere to affect normal work and physical health of people is avoided; the water is separated from the chippings through the filter box, and the chippingscan be treated in a centralized manner conveniently; and meanwhile, the water collected by the filter box is conveyed into a water storage tank for reuse through a water pump, and the water resource is saved.

The invention provides an antisludging inhibiter of a polymaleic anhydride boiler, which belongs to the chemical product technical field, and aims at providing an antisludging inhibiter of the polymaleic anhydride boiler, which has high ansludging ratio and small corrosion rate. The antisludging inhibiter has the material components and the mass percents thereof that: water solution with the content of polymaleic acid being 50 percent is 60-70, water solution with the content of polyepoxysuccinic acid being 50 percent is 15-25, citric acid is 2-4, and zinc salt is 10-14. The polyepoxysuccinic acid is added into the water solution of polymaleic acid, and the citric acid and the zinc salt are added, and the full mixing is performed to obtain the antisludging inhibiter. The antisludging ratio of the antisludging inhibiter of the invention can reach up to more than 99 percent, and the corrosion rate is less than 0.011 mm/a, so the antisludging inhibiter is not only economic and practical, but also has good effect, and has very marked economic and social benefits, is used for the water treatment in the boiler, and also can be applied to the scale prevention and the scale boiling of central air conditioning systems and water heaters, etc.

An external preparation for skin has a pH value of 2.0-5.0 and comprises: (a) 1.0-7.0 mass % of at least one of the members selected from hydroxy acids, (b) 0-0.1-3.0 mass % of a crosslinked type N,N-dimethylacrylamide-2-acrylamido-2-methylpropane sulfonic acid sodium salt copolymer, and (c) 0-0.1-3.0 mass % of an associating thickener constituted of a compound of the formula (1): R¹—{(O—R²)_k—OCONH—R³[—NHCOO—(R⁴—O)_n—R⁵]_h}_m (1) wherein R¹ represents a hydrocarbon group, R² and R⁴ represent alkylene groups having 2-4 carbon atoms, which may be identical or different, or a phenylethylene group, R³ represents a hydrocarbon group, which may have a urethane bond, R⁵ represents a branched chain or secondary hydrocarbon group, m is a number of at least 2, h is a number of at least 1, k is a number within the range of 1-500, and n is a number within the range of 1-200.

The invention discloses a low-grade iron ore dressing technique and equipment in the ore dressing technical domain, which comprises the following steps: doing rough breaking and once fine breaking; proceeding dry cleaning and sieving; milling; separating; doing magnetic cobbing and high-frequency sieving; filtering; sieving twice for ore material; obtaining the product. The ore dressing equipment comprises the following parts: rough breaking machine, fine breaking machine, dry cleaning bolter, storage bin, ball mill, separatory machine, magnetic cobber, high-frequency sieve, filter, a set of wet rougher unit between the storage bin and the separatory machine, wherein the wet rougher unit contains band conveyer, twice bolter, wet fine grinder, wet bolter and wet rougher, which has strong magnetic cobber of wet rought particle iron ore with watering device; the wet fine breaker is wet hammer breaker; the sieving feeding machine has shaker screen with eccentric oscillating device. The invention improves the production by 1-2 times under the same energy consumption condition in comparison with the present technique and equipment, which utilizes the low-grade iron ore resource sufficiently.

The invention belongs to the field of magnetic separation columns and particularly relates to a permanent magnetic separation column suitable for strongly or weakly magnetic minerals. Permanent magnetic systems are adopted, the magnetic field intensity can be adjusted within 1,600-16,000 Gs, and an inner permanent magnetic field mechanism and an outer permanent magnetic field mechanism which are in spiral distribution and movement are arranged simultaneously meet the requirement for production of big or small magnetic separation columns; fed water and minerals in a mineral separation chamber conduct inversely spiral upward movements to separate concentrate from tailing more radically, so that the concentrate grade is further improved; concentrate particles conduct obliquely downward slow movement under dual actions of the magnetic field and the dead weight, so that the tailing missing amount is reduced; and the permanent magnetic separation column is simple in structure, stable and reliable, low in water consumption, high in equipment output, and is simultaneously suitable for separation of such strongly-magnetic minerals as magnetite and such weakly-magnetic minerals as hematite, limonite and siderite.

The invention belongs to the field of coatings, and in particular relates to a self-cleaning LED package coating and a preparation method thereof. The self-cleaning LED package comprises a metal substrate cut into two sides to form an anode and a cathode. An LED chip which is located above the center of the metal substrate and a plastic package part used for packaging the metal substrate are arranged. The plastic package part and a lens part protruding above the center are integrally formed. The coating comprises a self-cleaning painting coated on the plastic package part and the surface of the lens part. The self-cleaning painting comprises, by weight, 0.1 to 0.2 part of nanoscale titanium dioxide particles, 0.5 to 2 parts of tridecafluorooctyl triethoxysilane, and 80 to 120 parts of absolute ethanol. The acquired LED package has the property of super-hydrophobic self-cleaning without ultraviolet irradiation, and has the properties of anti-wetting, anti-icing and anti-corrosion. The service life of an LED can be prolonged, and the difficulty of cleaning and maintenance is reduced.

The invention discloses a special hospital bed for clinical digestive medicine use. According to the special hospital bed for clinical digestive medicine use, a water tank is fixedly connected with atop wall of a bed-head box; a liquid inlet is formed at the top of the water tank; a liquid outlet of the water tank is fixedly sleeved with a piston tube; a side wall of the piston tube communicateswith one end of a liquid-spraying pipe; the other end of the liquid-spraying pipe sequentially penetrates through two side walls of the bed-head box in a fixed way; and position adjustment of a bearing plate is realized by combination of a screw, the bearing plate and a liquid receiver tank, thereby facilitating sudden vomiting of a patient as well as achieving timely cleaning. Moreover, the wholehospital bed is simple to operate, so that, the hospital bed can be operated by a caregiver or by a patient himself/herself; and thus, sanitary ward environment is ensured.

A rarely-blocked water-saving toilet bowl mainly comprises a water tank, a spindle, an outflow disc, a seal cover, a second motor and stirring rods; an acceleration box is connected to the bottom of the water tank, the top of the acceleration box is provided with a water inlet and a water outlet, one side of the water inlet is provided with the water outlet, the spindle is connected with a first motor, rotating blades are fixed around the spindle, the outflow disc is connected with the acceleration box below, a pipeline is arranged below the seal cover, a hydraulic cylinder is arranged on oneside of the pipeline, a telescopic bar is connected to the left of the hydraulic cylinder, a rotating disc is arranged on the left of the telescopic bar, and the second motor is arranged in the telescopic bar. With the stirring rods and the rotating disc, the rarely-blocked water-saving toilet bowl allows blockage to be stirred apart to facilitate flushing of the blockage, and the stirring rods can be retracted when idle to avoid the fact that the stirring rods placed in the pipeline are not convenient to use in daily life.

The invention relates to the technical field of machine tools, in particular to a wire-cut electrical discharge machining device. The device comprises a machine body, a wire passing mechanism, a supporting column, a water feeding mechanism, a fixing mechanism, a metal wire, a mounting mechanism, supporting plates, an adjusting mechanism, a limiting mechanism and a cleaning mechanism, the metal wire rotates on the side wall of the wire passing mechanism, and the water feeding mechanism is installed at the bottom end of the wire passing mechanism. According to the device, when the metal is cut,the liquid in the water feeding mechanism converges into huge water flow and flows to the metal surface along with the metal wire, the melted metal is quickly washed away, attachments on the metal wire are reduced, the cleaning mechanism is installed at the bottom end of the wire passing mechanism, the metal wire moves up and down in a zigzag mode inside the cleaning mechanism, so that the surfaceof the metal wire is fully contacted with the interior of the cleaning mechanism to clean up metal attachments on the surface of the metal wire; the water feeding mechanism and the cleaning mechanismare located on the top end of the mounting mechanism, the liquid and the metal fragments directly fall on the v-shaped top surface of the mounting mechanism, so that the metal fragments can be conveniently washed away by the liquid.

The invention relates to an easy-to-clean mildew-proof PP composite material and a preparation method thereof. The method includes: adding PP resin, silicate oligomer, a water absorbent, a compatilizer, a mildew-proof aid, a compatibilizing dispersant and an antioxidant into a high-speed mixer, mixing for 6-10min at the speed of 240-500r/min to form a premix, and putting the mixed premix into a main feed port of a double-screw extruder for granulation, and preparing the easy-to-clean mildew-proof PP composite material. The water contact angle of the prepared easy-to-clean mildew-proof PP composite material is 65-80 degrees, and the mildew-proof grade is 0 grade. According to the invention, the silicate ester oligomer is easy to decompose to generate a silanol group after encountering water, and the silanol group migrates to the surface of the polypropylene composite material to greatly improve the hydrophilicity of the surface of the material, so that dust on the surface of the material is easier to wash away under the action of water, and an easy-to-clean effect is achieved.

The invention discloses a duct piece fixing pile device for fixing a shield tunnel duct piece. The duct piece fixing pile device comprises a grouting outer sleeve and a grouting inner sleeve; a connecting part and a step part are arranged at the front end of the grouting outer sleeve, the connecting part is fixedly connected with the step part, a sealing cover is arranged at the rear end of the grouting outer sleeve; a supporting part is arranged at the front end of the grouting inner sleeve, the supporting part is located on the step part, the step part is fixedly connected with the supporting part, a grouting bag is connected to the rear end of the grouting inner sleeve; threads are arranged on the outer parts of the ends, close to the connecting part, of the connecting part and the grouting outer sleeve correspondingly; and the invention further discloses a construction method of the pipe piece fixing pile device, and the construction method comprises the steps of grouting hole opening, grouting liquid stirring, grouting and the like. According to the duct piece fixing pile device for fixing the shield tunnel duct piece, fixing the tunnel duct piece in time can be carried out during shield construction, so that the construction efficiency is effectively improved, and the construction quality is improved.

The invention provides a preparation method of a titanium oxide film and a titanium oxide film. The preparation method comprises the following steps: 1) preparation of titanium oxide precursor; and 2) film coating and after-treatment. The preparation method is simple in preparation technique and can implement large-scale production.

The invention provides a convenient-to-clean antifouling air-conditioning filter screen and a preparation method thereof, and relates to the technical field of air-conditioning filter screen processing. The convenient-to-clean antifouling air-conditioning filter screen is prepared from the following raw materials in parts by weight: 80-90 parts of polypropylene resin, 12-16 parts of organic silicon resin, 4-5 parts of polymethylphenyl siloxane, 2-4 parts of nano-graphene, 1 to 4 parts of divinyl benzene, 1 to 2 parts of melamine, 1 to 3 parts of palm wax, 1.2-1.6 parts of ethyl acetate, 2-4 parts of silicon dioxide, 1-3 parts of zinc oxide, 2-4 parts of lithium carbonate, 0.8-1 part of a dispersing agent, 1-1.3 parts of a plasticizer and 0.6-1.2 parts of an antioxidant. According to the invention, the defects in the prior art are overcome, various materials are added, and stubborn residue of dust and bacteria is effectively prevented, so that the prepared filter screen has a certain hydrophobic effect and is easy to clean, the cleaning cost of the air conditioner filter screen is reduced, and the filter screen is suitable for popularization and production.

The invention discloses an air pressure impact type closestool water seal pipeline blockage dredging equipment which structurally comprises a stamping rod, a pull ring and a sealing air cushion; the pull ring is connected to the top end of the stamping rod through a gap, and the sealing air cushion is mounted under the stamping rod. The air pressure impact type closestool water seal pipeline blockage dredging equipment has the beneficial effect that a positioning frame is prevented from automatically covering back under the cooperation of a limiting plate and a fixing block, the stability of the positioning frame is conveniently improved, shaking of the stamping rod is avoided, an air compressing disc is driven by the reset force of a reset spring and the attraction force of a magnetic block to downwards extrude air in the stamping rod, air can conveniently and quickly impact the interior of a closestool through an air outlet pipe to dredge blocked excrement, and the air enters the airoutlet pipe under the action of pressure; a pressurizing plate inclining inwards further increases air pressure, at the moment, air pushes a baffle downwards to open a flow limiter, the baffle extrudes a supporting strip downwards, excrement blocked in the closestool can be flushed away by the air conveniently, and when no air passes through the closestool, the baffle is supported by the supporting strip to close the flow limiter in time, so that pollutants are prevented from being sucked into a through hole.

The invention discloses a novel ultraviolet disinfection closestool which comprises a water tank, wherein closestool body is arranged below the water tank; a closestool seat is mounted above the closestool body; ultraviolet lamps are mounted on the upper surface of the closestool seat; a switch box is mounted between the water tank and the closestool seat; a timing rotary knob is mounted in the middle of the switch box; a disinfection box is mounted right ahead of the water tank; an electromotor is mounted in the disinfection box; fan blades are connected onto the electromotor; a heating body is mounted right ahead of the fan blades; disinfection box ultraviolet lamps are mounted right head of the interior of the disinfection box. According to the novel ultraviolet disinfection closestool, through arranging the ultraviolet lamps, bacteria in the closestool seat can be killed when the ultraviolet lamps are turned on to disinfect the closestool seat and protect health of a user; the timing rotary knob is arranged to enable the user to conveniently control the disinfection time of the closestool seat, so that man power is saved, and the user can more conveniently use the closestool.

The invention provides an application of salvianolic acid effective part in preparing a preparation for improving skin quality. The preparation is a solution agent or an ointment agent prepared from the salvianolic acid effective part as an active component and a pharmaceutic adjuvant. The content of the salvianolic acid effective part in the preparation is 10-75%. The internal and external functions of the salvianolic acid effective part with a high content of salvianolic acid B are effectively combined, so that the skin quality is improved, the skin aging is delayed and facial skin diseases such as whelk and the like are also treated. As the salvianolic acid effective part is completely water-soluble, the salvianolic acid effective part can be washed by using water and no trace is left after the use for daubing on the skin. Compared with the existing skin beauty and health products, the salvianolic acid effective part has the advantages of clear effective components, high content, high efficiency, safety, no toxicity, no sequelae, convenience for using, adaptability to all sorts of people, low price and easiness for large scale production and has a great application value.

The invention provides a press-resistant buoy used in an ice zone. The press-resistant buoy comprises a lower body and an upper body, wherein a circle of water level sensor is arranged on the outer wall of the middle of the upper body, a heating layer is arranged on the inner side of the inner wall of the upper body, a heat insulating layer is arranged on the inner side of the heating layer, a heating control device is arranged between a seal partition plate and a seal heat insulating plate and is connected with the heating layer, a control center, a storage battery and a wireless transmission device are arranged on the seal heat insulating plate, the storage battery supplied power for the control center, the wireless transmission device and the heating control device, the control center is connected with the wireless transmission device, and the water level sensor is connected to the control center. The press-resistant buoy makes flowing ices pressing the top of the buoy easily washed away with water flows. The press-resistant buoy is designed with the water level sensor, the heating layer on the surface of a buoy body is started for heating when the buoy is pressed to be under the water surface by large flowing ices, the flowing ices melt through heating, and accordingly the buoy rapidly floats out of the water surface and can be used at any environment temperature.