196results about How to "Speed up penetration" patented technology

The invention discloses a hydrophilic-hydrophobic bipolar complex membrane and the method for preparing the same. Said complex membrane comprises two layers, the bottom one is porous supporting system, and upper one is ultra-fine cerebral cortex; said porous supporting system is hydrophobic membrane and nonpolar, to avoid condensation of water vapour; ultra-fine membrane is hydrophilic membrane and polar, and LiCl with 1-5% by weight of main component can be doped to increase polarity; the thickness of porous supporting system is 30-100 um, and that of ultra-fine cerebral cortex is 5-20 um. The invention is characterized by simple process and low cost. The prepared bipolar complex membrane is characterized by good penetration property and gas selectivity, high intensity and wide application in water treatment, air conditioner engineering, energy, chemical industry, metallurgy and biochemical engineering. The product is especially suitable for air dehumidification and heat recycle of air cinditioner new gas.

The invention provides a chitosan emergent hemostasis material, which is provided with at least two layers of structures: a chitosan hemostasis layer as an upper layer, and a polyacrylic acid grafting chitosan lining layer as a lower layer, wherein the chitosan hemostasis layer is of a structure of a porous microsphere, porous fiber, porous sponge, or a compound of the porous microsphere, the porous fiber and the porous sponge; and the polyacrylic acid grafting chitosan lining layer is of a structure of porous fiber, porous sponge, or a compound of the porous fiber and the porous sponge. According to the chitosan emergent hemostasis material, the polyacrylic acid grafting chitosan is used as the lining layer of the chitosan, so that powerful water suction force can be provided, seepage velocity of blood in the chitosan hemostasis material is improved, blood is further concentrated, the density of the hemostasis material is improved simultaneously, the hemostasis material is easier to sink to arrive at a bleeding point, gravity press of a bleeding part is formed, pressurization is convenient, and the hemostasis effect is improved. Meanwhile, the polyacrylic acid grafting chitosan layer also can be used as a medicine-carrying substrate, can be used for carrying antibacterial drug, acesodyne, factors for promoting tissue repair and the like, and is good for preventing and controlling infection while stopping bleeding, relieving pains, and accelerating wound tissue healing.

The invention relates to a method for producing a runny preserved duck egg semi-continuously and rapidly through vacuum decompression. The preserved duck egg is soaked by adopting a vacuum decompression semi-continuously production technology, air in the duck egg can be pumped out through repeated vacuumizing, then in the process of rising to normal pressure, alkali liquor can permeate into the duck egg rapidly due to the pressure difference of the interior and the exterior of the duck egg at the beginning of salting, so that the salting period of the preserved duck egg is shortened. The method has high degree of mechanization, can be operated semi-continuously, can improve the production efficiency of the preserved duck egg, uses unleaded feed liquid, and can prepare safe and harmless preserved duck eggs.

The invention discloses environment-friendly recycled concrete and a preparation method thereof, and relates to the field of building materials. Raw materials of the environment-friendly recycled concrete comprise the following components in parts by weight: 200-220 kg / m<3> of water, 440-460 kg / m<3> of ordinary Portland cement, 380-400 kg / m<3> of natural river sand, 10-15 kg / m<3> of a polycarboxylate water reducer, 580-600 kg / m<3> of natural gravel, 600-650 kg / m<3> of polyvinyl alcohol modified recycled coarse aggregates and 30-40 kg / m<3> of silica fume. The preparation method has the advantages of improving compressive strength and bending strength, waste concrete and waste polypropylene fibers can be recycled, pollution is reduced, and the recycled concrete is green and environmentally friendly.

A pricking machine for the surface material of sanitary goods is composed of machine frame and a pair of steel nail roller and hole roller, which are engaged via two gears. Said rollers are composed of an external sleeve pipe, an internal roller and an electric heater in said internal roller.

The invention relates to the technical field of biodegradation, in particular to an ultrasonic-assisted bio-enzyme ligin removing method and a device thereof. The method comprises the steps that wood fiber raw materials such as reed or bamboo willows are purified, then soaked with water and ground into filamentous fibers; water and a bio-enzyme ligin removing auxiliary are mixed evenly, and the filamentous fibers are added; air is introduced, the temperature is raised, an ultrasonic generator is started, and a constant-temperature and constant-pressure reaction is carried out; hydrogen peroxide is added into the materials for a reaction, and the reaction is terminated when the whiteness of pulp is higher than or equal to 75% ISO. The device used in the method comprises a bucket, a feeding port, a safety valve, a motor, a coupler, an air inlet, a water inlet, a pulp outlet and a supporting part. A mechanical rubbing and stirring device is arranged in the bucket, and the ultrasonic generator and an ultrasonic transducer are further arranged outside the bucket and are connected through a connecting device. According to the ligin removing method and the device, the treatment cycle is short, and the treatment capability and efficiency are high.

The invention belongs to the technical field of membrane separation materials and discloses a low thermal conductivity hydrophilic-hydrophobic bipolar composite membrane as well as a preparation method and application thereof. The composite membrane is composed of a porous supporting body layer with the thickness of 30-100mu m and an ultrathin skin layer with the thickness of 5-20mu m, wherein the porous supporting body layer is prepared from a hydrophobic polymer and hydrophobic silicon dioxide aerogel, and the ultrathin skin layer is prepared from a hydrophilic polymer and hydrophilic silicon dioxide aerogel. The preparation method of the composite membrane adopts a coating method, technology is simple, and equipment cost is low; and the obtained composite membrane has good permeability and gas selectivity, relatively low thermal conductivity and relatively high strength, can be widely applied to the fields of water treatment technology, air conditioning engineering, energy sources, chemical engineering, metallurgy, biochemical engineering and the like and is especially applicable to sea water desalination and independent air dehumidification.

The invention relates to a method for rapidly producing hard-core preserved duck eggs in a semi-continuous mode by a vacuum decompression and sponge permeation method. The method comprises the following steps of: preparing pickling material liquid, putting eggs, spraying the pickling material liquid on the eggs, carrying out vacuum decompression treatment on the eggs, taking out the eggs from a jar, washing the eggs, drying the eggs in air, coating membranes on the eggs, and maturing the eggs so as to obtain the hard-core preserved duck eggs. According to the method, the hard-core preserved duck eggs are rapidly produced by the vacuum decompression and sponge permeation method, air in the duck eggs can be sucked out in a repeated vacuuming mode, and subsequently, due to the pressure difference inside and outside the duck eggs, alkali liquid can rapidly permeate into the eggs in the primary pickling period during the process of rising to a normal pressure, so that the pickling period of the preserved duck eggs is shortened. Compared with a mud coating method, the method enables the eggs to be cleaner and more sanitary, ensures a high mechanization degree and semi-continuous operation, and can effectively improve the production efficiency of the preserved duck eggs; and as the material liquid is leadless, the produced preserved duck eggs are safe and harmless.

The invention discloses a preparation method of a composite absorbent core and a production device thereof. The production device comprises a conveying device, a front glue spraying device, a cloth guide roller, a lower polymer injection device, a negative pressure device, an upper polymer injection device and a rear glue spraying device connected in sequence. The lower polymer injection device isa blanking roller, a plurality of grooves are arranged on the outer wall of the blanking roller, and when the blanking roller rotates, the polymer water-absorbent resin is injected into the non-wovenfabric through the grooves; The blanking roller is also provided with a filling area matched with the flow guiding groove, and a filler is arranged in the filling area for closing the groove, so thatthe filling area is free of macromolecule water-absorbent resin, thereby forming the flow guiding groove when blanking. The flow guide groove formed by the invention is accurate in positioning and clear in outline, avoids the drift and accumulation of macromolecules, reduces reverse osmosis water and leakage phenomenon, improves the permeation speed and diffusion speed of the core, and is simpleand easy to replace the position and shape of the flow guide groove.

The invention relates to shuttering hardening agents. The shuttering hardening agents mainly include, by weight, 10-15% of hexahydrate crystallization of aluminum chloride, 22-25% of dihydrate flaky calcium chloride, 1.5-2% of anhydrous boric acid, 0.1-0.15% of permeating agents and the balance clear water. The hexahydrate crystallization of aluminum chloride and the dihydrate flaky calcium chloride serve as the main materials of the hardening agents, so that the defect that the work conditions are seriously worsened as ammonium chloride is used as the main materials of shuttering hardening agents is fundamentally overcome, and the other properties are better than those of the ammonium chloride hardening agents. The shuttering hardening agents have the characteristics of being high in hardening speed, shortening the process and shortening the production period, avoid environmental pollution and obviously improve economic benefits.

The invention provides a preparation method of Chinese smoked sausage. The preparation method specially comprises the following steps: 1) selecting and pretreating raw materials of sausage; 2) pickling; 3) cleaning; 4) airing and after-pickling; 5) smoking and roasting; and 6) cleaning, drying, cooling, reshaping and packaging. The preparation method adopts a manure saturated saline solution vacuum thawing, vacuum intermittent pickling, low-temperature roasting and fast drying technology, the sausage can be prevented from deterioration during processing through smoking, and the flavor of the Chinese sausage can be increased.

The invention discloses a method for making snack sauced beef jerky. The method comprises the following steps: (1) boiling for producing aniseed water; (2) ultrasonic assisted pickling; (3) deodorizing and filtration; (4) cooking; and (5) packaging. Beef is pickled under the assistance of ultrasound, so the pickling time is greatly shortened, and the beef and the aniseed water are fully fused to make the beef jerky tasty; and the beef is dried by hot air blowing, so the water content of the beef jerky is improved; and blanching in carrot water is adopted, so the odor is reduced, the nutritional values of the product are increased, and the product is loved by people.