43results about How to "Avoid re-contamination" patented technology

The invention relates to a preparation method of a chelating dispersant. The preparation method comprises steps as follows: a, 10 parts of maleimide and 12 parts of acrylamide are dissolved with 65 parts of deionized water, 0.2 parts of sodium persulfate is dissolved with 30 parts of deionized water, and a solution is formed for later use; b, 20 parts of dodecyl polyoxyethylene ether, 15 parts of maleic anhydride sodium monoester, 15 parts of diallylamine and 234 parts of deionized water are added to a reactor, dissolved and heated to 70 DEG C; c, 1/3 of a maleimide and maleicamide aqueous solution in volume and 1/4 of a sodium persulfate water solution in volume are added to a reaction kettle and kept at the temperature for 30 min; d, the remaining maleimide and maleicamide aqueous solution, the remaining sodium persulfate water solution and 20 parts of acrylic acid are dropwise added within 2 h and kept at 80 DEC G, and the mixture reacts for 2 h; e, the temperature of the reactor is reduced to 30 DEG C, 8 parts of sodium hydroxide are added firstly, 14 parts of carbon disulfide are added after dissolution, the mixture reacts for 3 h and is filtered, and the chelating dispersant is obtained.

The invention provides a roof ceiling cleaning device. A dust receiving hopper is arranged at the front end of a broom with a telescopic handle lever, and is provided with a hopper opening which can be sleeved with a dust bag; and an antislip handle grip is arranged at the tail end of the telescopic handle lever. The roof ceiling cleaning device can be used for cleaning dust on a roof ceiling and the like; and the cleaned dust can directly fall into the dust receiving hopper, and is collected in the dust bag through the hopper opening for unified treatment, so the roof ceiling cleaning device can avoid the raised dust causing secondary pollution in the cleaning, and is favorable for human health and environmental health.

The invention discloses a maintenance method for a high-pressure casting mold. The maintenance method comprises the steps of air injection and water drainage, concentrated hydrochloric acid brushing, water injection and cleaning, and the like, wherein the air injection and water drainage step is that water is injected into waterways and micro holes in the mold through a drainage hole and an exhaust hole in the mold at the air pressure of 0.45 to 0.55 MPa till water in the mold is drained; the concentrated hydrochloric acid brushing step is that the surface of the mold is brushed with concentrated hydrochloric acid through a fur brush; and the water injection and cleaning step is that water is injected into the waterways in the mold for 30 to 60 min through the drainage hole in the mold at the water pressure of 0.2 to 0.4 MPa, and the surface of the mold is cleaned through clean water at the same time. According to the maintenance method, the operation is simple, the cost is low, the mold darkening is avoided while the mold surface is cleaned, the mold appearance is improved, the drainage and exhaust effect of the mold is improved while the micro holes of the mold are dredged, the service life of the mold is prolonged, and the maintenance method can be reutilized and can be popularized and applied to maintenance of ceramic molds.

The invention discloses a high pressure pouring mold surface oxidization treatment method which comprises the steps of air injection drainage, brushing of a sodium hypochlorite solution, water injection cleaning and the like. According to air injection drainage, air with the air pressure being 0.45-0.55 MPa is injected into water channels and micro-holes in a mold through drainage and air exhaust holes in the mold till moisture in the mold is fully drained. According to brushing of the sodium hypochlorite solution, the sodium hypochlorite solution is brushed on the surface of the mold through a hairbrush. According to water injection cleaning, water with the hydraulic pressure being 0.2-0.4 MPa is injected into the water channels in the mold through water drainage holes in the mold, and the surface of the mold is washed through clean water at the same time. The high pressure pouring mold surface oxidization treatment method is easy to operate and low in cost, mold oxidization and blocking of the micro-holes in the mold are prevented while mold oxidization is eliminated, the appearance of the mold is improved, the service life of the mold is prolonged, and the oxidization treatment method can be reused and applied and popularized to ceramic mold oxidization treatment.

The invention discloses hydrophilic polyester masterbatch facilitating decontamination and a preparation method of the hydrophilic polyester masterbatch. The hydrophilic polyester masterbatch is prepared from raw materials in parts by mass as follows: 90-96 parts of carrier resin and 4-10 parts of super absorbent resin, wherein the super absorbent resin is a starch-acrylic acid-acrylamide-fluorinated acrylic ester grafted copolymer. The super absorbent resin can form a three-dimensional space network with excellent water absorption and water retention properties; after the starch is grafted with fluorinated acrylic ester with longer carbon chains, fluorocarbon groups of fluorinated acrylic ester in a dry state can be directionally arranged on the surface of starch, low surface tension is formed and oil repellency is produced, however, the fluorocarbon groups are not directionally arranged in a wet state, so that the three-dimensional space network formed by cross-linking acrylic acid and acrylamide is exposed, and the polyester masterbatch is enabled to be hydrophilic and has functions of removing contamination and preventing secondary contamination. Therefore, hydrophilic and oil-repelling functions of the super absorbent resin are obtained, and the hydrophilic polyester masterbatch facilitating decontamination can be obtained.

The invention discloses a tile rubbing and shuffling device of a mahjong machine. The tile rubbing and shuffling device comprises a rack, a casing and a drive motor, wherein a tile rubbing and shuffling bin of a cylinder structure is arranged in the casing, a tile inlet is formed in the top part of the tile rubbing and shuffling bin, a rotating shaft is arranged on the tile rubbing and shuffling bin, a rotating disc provided with bulges and pits is mounted on the rotating shaft, and the periphery of the rotating disc is covered with a rotating disc covering surface; an output shaft of the drive motor stretches into the tile rubbing and shuffling bin, spray nozzles are distributed on all the top face and the side faces of the tile rubbing and shuffling bin, and a tile outlet is formed in the back side of the tile rubbing and shuffling bin; a drying chamber is arranged at the back of the casing, and a conveying rail and a drying device are arranged in the drying chamber. After the structure is adopted, mahjong tiles are cleaned by the spraying nozzles when entering the tile rubbing and shuffling bin, and can directly enter the drying chamber for drying after cleaning is completed, the cylindrical structure enables the mahjong tiles to be uniformly dispersed, and the mahjong tiles are directly dried after cleaned by the spray nozzles, so that the mahjong tiles are thoroughly cleaned, and prevented from being polluted again; the cleaning effect is good.

The invention relates to a self-service clothes washing method, a server, a user side, a clothes storage cabinet and a handheld terminal. The self-service clothes washing method comprises the steps that the server receives a clothes washing request initiated by a user through the user side; according to the clothes washing request, a first clothes storage cabinet is matched, and the position of the first clothes storage cabinet is sent to the user side; the clothes washing request is sent to a handheld terminal of a service staff, so that the service staff carries a clothes washing bag corresponding to the clothes to be washed of the user according to the clothes washing request, the clothes in the first clothes storage cabinet are subpackaged, and washing is completed; according to the clothes washing request, a second clothes storage cabinet is matched, and the position of the second clothes storage cabinet is sent to the service staff so that the service staff places the washed clothes in the second clothes storage cabinet; the clothes storage condition is sent to the second clothes storage cabinet so that the second clothes storage cabinet stores the washed clothes according to the storage condition; the position of the second clothes storage cabinet is sent to the user side so that the user takes back the washed clothes from the second clothes storage cabinet. The method has the effect that self-service clothes washing is simpler and more convenient.

The invention provides a vehicle window glass detergent and a production technology thereof, and relates to the technical field of detergents. The vehicle window glass detergent comprises sodium alkyl benzene sulfonate, secondary alkane sulfonate, alkylphenol polyoxyethylene ether, lauroyl diethanolamide, glucosyl dimethyl ester, sodium alginate, ethylenediamine tetraacetic acid, diethylenetriamine pentacarboxylic acid, carboxymethylcellulose sodium, polyethylene glycol, aminobenzoic acid, modified kaolin, a detergent and deionized water. The c vehicle window glass detergent has the advantages of remarkable effect, simplicity in preparation, wide application range, no peculiar smell, harmlessness to human bodies, and saving of a lot of manpower and material resources due to realization of bright glass only through uniformly coat the surface of glass with the detergent in use and wipe-drying with a clean cotton cloth without clear water flushing, and is worth promoting production.

The invention provides a surface sticky fluff removing device for garment production and processing. Ejector rods are arranged on the inner surfaces of fan-shaped plates, the ejector rods penetrate through the interiors of side bases, movable bases are arranged on the upper surfaces of the ejector rods, connecting rods are fixedly installed on the outer sides of the movable bases, push plates arefixedly installed at the bottoms of the connecting rods, flexible bags are arranged on the outer surfaces of the push plates, and the outer sides of the flexible bags are fixedly connected with watertanks through water pipes. When the top ends of the fan-shaped plates swing to the outer side, after the fan-shaped plates are separated from inclined blocks on the surfaces of the ejector rods, the ejector rods are driven to move downwards and meanwhile make contact with rollers on the surface of the movable bases, the movable bases and the connecting rods are driven to move inwards, the push plates at the bottoms of the connecting rods stretch the flexible bags, and water in the water tanks makes contact with a garment fabric through spray heads, so that a garment is subjected to atomizationand dust removal treatment in the fluff removing process, and meanwhile the situation that fluff flies around and is inhaled by workers in the clothing fluff sticking process, resulting in harm to the bodies of the workers is avoided.

The invention discloses a water quality monitoring water supply device. The water quality monitoring water supply device comprises a device body, a water inlet pipe is arranged above one side of the device body in a penetrating mode, a water purification bin is connected to the top of the device body, and a first water pump is connected below the inside of the water purification bin. The water quality monitoring water supply device is further provided with the first water pump, a second water pump, the water purification bin and a nozzle at the same time. After sewage is purified, the second water pump can pump purified water in a purification pool through a water pumping pipe and deliver the water into the water purification bin for storage through a water delivery pipe. When the device needs to be cleaned, the first water pump can pump water in the water purification bin through a water pumping opening and deliver the water into the nozzle through a connecting pipe, the nozzle can spray the water out to wash and clean a grit chamber, the washed and cleaned water can enter a water purification pool through a water outlet valve and is discharged by an exhaust water pipe, and the function of cleaning of the device is achieved, so that the sewage is avoided to remain in the device to cause an error on the result of next water quality monitoring.

The invention discloses a preparation method of an adsorption type biological enzyme soaping agent for reactive dyes, belonging to the technical field of preparation of printing and dyeing auxiliary agents. The preparation method comprises the following steps of firstly, culturing and fermenting white-rot fungi by using a homemade fermentation medium, centrifuging the prepared fermented liquid to obtain crude enzyme liquid, and then preparing alkaline laccase by taking the crude enzyme liquid as a raw material; preparing a wool keratin solution by taking wool as a raw material, modifying the prepared wool keratin solution, then mixing the modified solution with the alkaline laccase, Tween-80/liquid paraffin, and the like, and carrying out centrifugal separation; after that, collecting precipitate, and washing the precipitate with acetone and isopropyl alcohol; finally, drying to obtain the adsorption type biological enzyme soaping agent for the reactive dyes. The soaping agent prepared by the method has a better soaping effect and a better anti-staining effect, thus enabling the color fastness to soaping and fastness to rubbing of fabrics subjected to soaping to reach three-level or above; furthermore, the soaping agent provided by the invention does not generate foam in a soaping process, so that the washing times of the fabrics can be reduced, and the energy consumption is greatly reduced.

The invention relates to the technical field related to textile fabric production, and discloses a desizing device for textile fabric production. The desizing device comprises a washing tank; reversing wheels are movably mounted on two sides of the top of the washing tank respectively; a cleaning brush is fixedly mounted at the bottom of an inner cavity of the washing tank; a partition plate is fixedly mounted in the middle of the inner wall of the washing tank; and a washing cavity is formed in the inner wall of the washing tank. According to the invention, the partition plate is arranged in the washing tank, so that a large amount of slurry floats to one side in the washing cavity in a fabric treatment process; meanwhile, movable magnetic blocks are arranged in a cleaning wheel, the movable magnetic blocks attract each other through rotation of the cleaning wheel, and a fabric is blown by airflow, so that cleaning is achieved; and the airflow in liquid is upward and acts on the part near the fabric, and when the fabric leaves from the liquid, slurry blocks are pushed away through the airflow, so that the phenomenon of secondary contamination after cleaning is avoided, and finally the purpose of avoiding secondary slurry contamination is achieved.

The invention discloses a tile cleaning device of a mahjong machine. The tile cleaning device comprises a rack, a shell and a drive motor. A tile rubbing and cleaning bin of a conical structure is arranged in the shell, a tile inlet is formed in the top of the tile rubbing and cleaning bin, a rotary shaft is arranged on the tile rubbing and shuffling bin and provided with a rotary disc with protrusions and pits, and the periphery of the rotary disc is coated with a rotary disc covering face. An output shaft of the drive motor stretches into the tile rubbing and cleaning bin, spray heads are evenly arranged on the side faces of the tile rubbing and cleaning bin, a tile outlet is formed in the rear side of the tile rubbing and cleaning bin, a drying chamber is arranged behind the shell, and a conveying rail and a drying device are arranged in the drying chamber. By means of the structure, after entering the tile rubbing and shuffling bin, mahjong tiles can be cleaned through the spray heads and can directly enter the drying chamber to be dried after being cleaned, the mahjong tiles are scattered very evenly by means of the tubular structure, and the mahjong tiles are directly dried after being cleaned through the spray heads, so that the mahjong tiles are cleaned and prevented from being contaminated again, and the cleaning effect is good.

The invention discloses a household garbage classification, recovery and harmless treatment system. The system comprises a recovering box, a cleaning box and a conveying ladder connected with the recovering box and the cleaning box; an outlet is formed in the lower end of the cleaning box; a first-stage conveying belt is arranged below the outlet; the first-stage conveying belt is provided with a first-stage distinguishing device; a second-stage conveying belt is arranged below the first-stage distinguishing device; a second-stage distinguishing device is arranged on the second-stage conveying belt; a third-stage conveying belt is arranged below the second-stage distinguishing device; and each of the discharging ends of the first-stage conveying belt, the second-stage conveying belt and the third-stage conveying belt is provided with an iron part recovering device and a screening device. Compared with the prior art, the system has the advantages that garbage can be automatically classified and recovered, and the garbage classification efficiency can be improved.

The invention discloses a mahjong rubbing device. The device comprises a rack, a shell and a driving motor, wherein a mahjong rubbing and shuffling bin with a conical structure is arranged in the shell; a mahjong inlet is formed in the top of the mahjong rubbing and shuffling bin; a rotating shaft is arranged on the mahjong rubbing and shuffling bin; an umbrella-shaped rotating disc is mounted on the rotating shaft; a rotating disc coverage surface covers the periphery of the umbrella-shaped rotating disc; an output shaft of the driving motor stretches into the mahjong rubbing and shuffling bin; nozzles are arranged on the side ace of the mahjong rubbing and shuffling bin; a mahjong outlet is formed in the rear side of the mahjong rubbing and shuffling bin; a drying room is arranged behind the shell; and a conveying rail and a drying device are arranged in the drying room. With the adoption of the structure, while entering the mahjong rubbing and shuffling bin, the mahjong can be cleaned by the nozzles and can directly enter the drying room for drying after cleaning completion. According to the cylindrical structure, the mahjong can be uniformly scattered and is directly dried by the nozzles after cleaning, so that the mahjong can be cleaned up and is prevented from being contaminated again, so that the cleaning effect is good.

The invention relates to a method of preparing a high performance magnesium alloy tube blank by using a tube blank mold and belongs to the field of metal materials. The method comprises the followingsteps: (1) mixing and smelting raw materials in mixed gas of N2 and SF6 according to proportion of a magnesium alloy; (2) preheating the tube blank mold to 80-450 DEG C; and (3) pouring a magnesium alloy melt into the preheated tube blank mold to condense the alloy to obtain the magnesium alloy tube blank, specifically, in the whole process, a rotary magnetic field can be applied at the same time,the electromagnetic stirring frequency is 2-30 Hz, the electromagnetic stirring current is 60-500 A, and the mode of applying the magnetic field is as follows: the rotary magnetic field can be applied or not in the pouring process, and the rotary magnetic field is applied in the condensing process. The method is suitable for various magnesium alloys, short in process flow, easy to operate and convenient to control, and can meet the demand in actual application for performance of the magnesium alloy. According to the method, a self-made mold is adopted and a cavity is of a tube blank shape, sothat the stirring effect is good, the obtained magnesium alloy casting is uniform in inner and outer tissues and fine in grain size, and the mechanical properties are improved obviously.