277results about How to "The role and effect are obvious" patented technology

The invention relates to a low-density coated ceramsite proppant and a preparation method thereof, and belongs to the field of petroleum proppants. A ceramsite base material and mixed resin coating the surface of the ceramsite base material are adopted, so that compared with the traditional proppant, the breaking-resistant capacity is greatly improved, the breaking rate is much lower under the condition of the same consumption of resin, and the low-density coated ceramsite proppant can be suitable for deeper well fracturing. Compared with the traditional proppant, the production cost is lower, the chemical inertness is better, the fracturing effective period can be prolonged, and the low-density coated ceramsite proppant is suitable for the fracturing construction under various complicated stratum environment conditions and is higher in flow conductivity.

The invention provides a composite passivator applicable to rice field soil cadmium pollution. The composite passivator is mainly prepared from chitosan, sodium bentonite, bone meal, lime, charcoal, ZnO and nanometer FeO. The invention further provides a preparation method and application of the composite passivator. By means of the composite passivator, the available cadmium content in rice and the cadmium content in rice can be remarkably reduced, the soil pH value can be improved, vast rice soil polluted by heavy metal cadmium can be treated, the organic matter content is greatly improved, and the soil biology-chemical characteristic is improved.

The invention discloses a biological treatment method for waste mud in petroleum and natural gas exploration drilling work, which is characterized by comprising the following steps of: a, forming a microbial treatment layer, namely inoculating special microbial strains to the waste mud in a weight ratio of 3-5: 100, mixing the strains and the waste mud uniformly, stirring the mixture and natural soil with water content of 10 to 10 percent and grain diameter of less than 0.5 centimeter uniformly according to the density condition of the waste mud in a following mode to form the microbial treatment layer, adding the natural soil in an amount which is 2.5 to 3 times that of the waste mud into the waste mud with density of 1 to 1.5kg/L, adding the natural soil in an amount which is 2 to 2.5 times that of the waste mud into the waste mud with density of 1.5 to 2.5kg/L, and controlling the water content of the microbial treatment layer to be between 25 and 30 percent; b, treating the soil; and c, treating plants. The method can solve the technical problem that effusion enters underground water to pollute a water source because the natural soil with high water content and large grain diameter is easily scoured by hard rain under the condition that pollutants in a pretreatment mixture are not yet effectively degraded in the prior art.

The invention discloses a moisture-proof deoxidizing agent for foodstuff, and belongs to the technical field of a deoxidizing agent for foodstuff. The moisture-proof deoxidizing agent for the foodstuff disclosed by the invention comprises the following components in parts by weight: 90-110 parts of iron powder, 5-15 parts of calcium chloride, 5-15 parts of activated carbon and 20-40 parts of auxiliary material, wherein the auxiliary material is attapulgite and montmorillonite, and the mass ratio is (4-6) to (4-6). The moisture-proof deoxidizing agent for the foodstuff disclosed by the invention has a long-term deoxygenization effect, and the antioxidant effect of an easy-to-oxidize food can be significantly improved. Meanwhile, the original oxygen absorbing performance still can be kept under a high-humidity condition, and the moisture-proof deoxidizing agent also has an auxiliary dehumidifying effect, and is significant in effect, simple in preparation technology, convenient to add and use, high in safety, lasting in action, low in production cost, applicable to preservation of various foods, and beneficial to popularization and application.

The invention relates to a large asynchronous motor rotor fanning strip lamination structure comprising a rotor fanning strip, a tie bolt, a stop pin, a rotor clamping ring, a rotor ventilation trough plate, a rotor end plate and an inclined key, wherein the rotor fanning strip, the rotor fanning ventilation trough plate and the rotor end plate are positioned by pins during the laminating process; and after the rotor fanning strip and the like are laminated, a screw tightly pulls the rotor fanning strip and the rotor clamping ring, and the inclined key is subject to thermal beating. Screw holes and pin holes are punched on the rotor fanning strip, the number of the pin holes is two times of that of the screw holes, a gap between each screw hole and the screw is 0.3-0.5 mm, and a gap between each pin hole and the pin is 0.1 mm. The invention has simple and compact structure and obvious acting effect; under the condition of not changing a structural material and ensuring qualified motor magnetic property characteristics, the laminating difficulty of the rotor fanning strip is lowered, and the reliability of the rotor is improved.

The invention relates to a processing technology for refining weld joint structures in a welding process, in particular to a method and a device for refining weld joint structures by using pulsed magnet fields in the welding process, and belongs to the technical field of welding. The method for refining weld joint structures by using pulsed magnet fields in the welding process includes that welding is performed by using an ordinary gas metal arc welding method, an applied magnetic field is added above a gas metal arc welding pool, mechanical movement and welding gun movement of the magnet fields are synchronous, electric arc and melt drip transition action is controlled by the magnet fields in a welding process, metal melt in the gas metal arc welding pool is forced to move, an electromagnetic stirring effect is produced, and weld joint structures are finally refined in the welding process. According to the method and the device, in the welding process, the weld joint structures are refined, welding defects are reduced, and further the cost is reduced, and the welding quality and the production efficiency are improved.

The invention discloses a power system additional wide-area damping controller design method giving consideration to time lag, and the method comprises the steps: (1), enabling an oscillation mode with the weakest damping of a power system to serve as a target control mode, determining the optimal installation positions of AVR and FACTS equipment, further building a power system mode and a WADC model which comprise the AVR and FACTS equipment and do not give consideration to time lag; (2), introducing a time lag link on the basis of the power system mode and the WADC model which comprise the AVR and FACTS equipment and do not give consideration to time lag, and further building a closed loop time lag power system model giving consideration to a time lag factor; (3), building a WADC parameter-optimization mathematic model according to the closed loop time lag power system model; (4), employing a PSO algorithm, and solving the optimal parameters of WADC at step (3). The method gives consideration to the time lag factor in each iteration optimization process, employs the SOD algorithm to solve the key characteristic value of the right side of a closed loop time lag power system, so as to achieve a big purpose that the damping of the key characteristic value is the biggest.

The invention provides a composition for treating concrete waste slurry water. The composition is composed of 15-40 parts of a hydration inducing composition A and 1.0-3.5 parts of a waste slurry water dispersion composition B. The hydration inducing composition A comprises 3-15% of inorganic salt, 3-10% of a nanocrystalline nucleus early strength agent, 2-8% of composite alcohol amine, 2 to 5 percent of polyethylene glycol, 1 to 5 percent of diethylene glycol, 0.1 to 5 percent of a polycarboxylate water reducing agent, 0.05 to 2 percent of a retarder, 0 to 1 percent of a thickener, 0.02 to 0.05 percent of sodium glutamate, and 0.03 to 0.05 percent of hexadecyl trimethyl ammonium bromide, with the balance being water. The waste slurry water dispersion composition B comprises 3-10% of a dispersing agent, 2 to 9 percent of compound alcohol amine, and 6 to 12 percent of a retarder, with the balance being water. The invention also provides a method for preparing premixed concrete by usingthe waste slurry water. According to the composition and the method, the problem that existing wastewater and waste slurry are difficult to directly utilize can be solved, zero emission of the wastewater and the waste slurry of a concrete enterprise is achieved, and the strength of concrete can be guaranteed under the condition that 10-30 kg of a cementing material is reduced for each cubic meterof concrete.

The invention discloses an OLED package structure, an OLED package method and a display device, relates to the technical field of display, and achieves the purpose that the display performances of theOLED device are not influenced while the box thicknesses of the package structure are uniformed between a display substrate and a package cover plate. The OLED package structure comprises a package cover plate, a sealing frame glue layer is arranged on the edge of the first surface, opposite to the display substrate, of the package substrate in a surrounding mode, a region encircled by the sealing frame glue layer is filled with a filling adhesive layer, a plurality of support blocks with the preset flexibility are distributed in the region corresponding to the sealing frame glue layer, and the thicknesses of the support blocks are equal to the preset distance between the package cover plate and the display substrate.

The invention relates to a composite type polymeric flocculant which is mainly applied to the fields such as sewage treatment, sludge thickening, paper pulp recovery, petroleum extraction, etc. The composite type polymeric flocculant is characterized by being prepared by raw materials by weight percent: 40-45% of elm bark grass powder, 30-35% of cactus powder, 5-10% of sodium carboxymethyl cellulose and 15-20% of polyacrylamide. The flocculant can be normally used at higher temperature and under the condition of wider range of pH value.

The invention relates to application of epiberberine in preparation of a urease inhibitor. In application, urease can becanavalia ensiformis urease and can be also helicobacter pylori. The urease inhibitor is granules, capsules or tablets. The urease inhibition effect of the epiberberine is remarkably better than that of recognized acetylhydroxamic acid.

The invention provides a structure and method used for improving compressive strength of a pressure type anchor cable cement grouting body. The structure and method are used for solving shortcomings in the prior art. According to the pressure type anchor cable cement grouting body, a spiral reinforcing frame is added in the position, within the range of 1 to 3 m above a pressure bearing plate, inthe cement grouting body, the thread pitch of the spiral reinforcing frame is 20 to 60 mm, the spiral reinforcing frame is composed of multiple longitudinal ribs and spiral ribs wound outside the longitudinal ribs, the bottom of the spiral reinforcing frame is fixed to the pressure bearing plate, grouting is carried out in an anchor cable hole through a primary grouting pipe and a secondary grouting pipe to form the grouting body, and the grouting body completely wraps the spiral reinforcing frame. According to the anchor cable structure, the compressive strength of the cement grouting body can be at least improved by one cement mark, and the aims that it is ensured that the grouting body within the range of 1 m to 3 m above the pressure bearing plate meets the design needs, and is not crushed, reliability of the grouting body is improved, the designed cement mark is reduced, and the engineering cost is reduced.

An antistaling agent for food is prepared from garlic, onion, ginger, hot pepper, radish and cinnamon bark through mixing the first five, mashing, squeezing to obtain juice, extracting juice of cinnamon bark, and mixing them together. Its advantages include high antistaling effect, environment protection and high safety.

The invention relates to an oil storage device of a high-pressure motor bearing, which is mainly used for improving the protection grade of the high-pressure motor bearing, such as the functions of dust prevention and water prevention. An oil throwing disk is fixed on a rotating shaft of a motor, a V-shaped ring is put in the outer end of an inner ring of a left cover of the bearing to improve the protection grade, and the inner side of a bearing set is fixed through a right cover of the bearing. The oil storage device is characterized in that labyrinth parts are arranged on an inner cover and an outer cover of the bearing, and the left cover of the bearing is internally and additionally provided with the inner ring. The oil storage device has simple, compact and reasonable structure and obvious effect. Under the condition of not changing structure materials, the protection grade of the motor is effectively improved through additionally arranging a labyrinth ring and the labyrinth parts on the inner cover and the outer cover of the bearing and the oil throwing disk. The inner ring is additionally arranged in the left cover of the bearing, and lubricating oil is thrown into an oil storage cavity in the inner ring and the bearing due to the action of centrifugal force, thus the oil storage capacity is greatly enhanced. For part processing, the oil storage device is simple and reasonable and has no influence on mechanical property of workpieces, and for mechanical deviation, because a single radial edge is preserved with an allowance of 1mm and a single axial edge is preserved with an allowance of 2mm, the assembly of the parts have no problems.

The invention discloses a stem cell patch for treating severe skin diseases and injuries and a preparation method thereof, and belongs to the field of regenerative medicine and tissue engineering. The patch is constructed by combination of an electrospinning biological membrane and a mesenchymal stem cell, so that the mesenchymal stem cell can be transplanted to a skin burst position to promote adhesion and proliferation of the mesenchymal stem cell, and the electrospinning biological membrane is capable of protecting cell growth to promote formation of microstructure and appearance of the mesenchymal stem cell and promoting healing of skin wounds, and a novel thought is provided to improvement of transplanting efficacy of the mesenchymal stem cell. According to the preparation method disclosed by the invention, materials are convenient to obtain, and the preparation is simple.

This invention provides a synchronous motor of a solid pole winding with damp, which comprises a pole body and a pole shoe, wherein the pole shoe is fixed on the pole body through a bolt; a hole is processed in the pole shoe; a damp strip perforates through the hole; the end part of the damp strip is welded with a damp ring; a copper strip damp winding is added on a rotor of a solid pole synchronous motor, equivalently, two sets of damp windings contribute action simultaneously when the synchronous motor is started; the synchronous motor disclosed by this invention can start a large-inertia blower and reduces risks possibly generated by the rotor in a starting procedure and expands a use range of the synchronous motor; the synchronous motor disclosed by this invention is characterized by simple structure, safe use and obvious action effect; the design of a pole shoe structure is changed, thus, a starting torque is increased, temperature rise is reduced, the performance of the motor is improved, and the safety of the motor is ensured.

The invention discloses a toxin-eliminating and skin-beautifying convenience food and a preparation method thereof. The toxin-eliminating and skin-beautifying convenience food is characterized by comprising the following raw materials in parts by mass: 1-3 parts of brown rice, 1-3 parts of oat, 1-3 parts of coix seed, 1-3 parts of mung bean, 1-3 parts of corn, 1-2 parts of soybean, 1-2 parts of yellow millet, 1-2 parts of dried seaweed, 1-3 parts of dried black fungus, 1-3 parts of dried mushroom, 1-2 parts of dried tremella, 1-2 parts of Chinese angelica and 1-2 parts of brown powdered sugar. Based on the health-preserving theory of traditional Chinese medicine (TCM), the selected raw materials are all natural raw materials or raw materials which are both medicines and food. Meanwhile, the efficacy of the edible mushroom is applied to the field of convenience food, so that metabolism can be promoted, excretion of internal wastes can be promoted, trace elements can be supplemented and the skin-beautifying and anti-aging role can be played.