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62results about How to "Use less labor" patented technology

Power transmission and distribution line partial discharge fault on-line detection method and apparatus thereof

The invention provides a power transmission and distribution line partial discharge fault on-line detection method and an apparatus thereof, belonging to the measurement field. A method of on-line remote orientation focusing pick-up / positioning is employed to capture a supersonic wave signal generated in a discharge process, a heterodyne method is used to convert the picked supersonic wave signal into a sound / electrical signal which can be distinguished by detection personnel, according to a value size or change of sound pressure / voltage, whether a position where a partial discharge fault easily happens exists a contaminant flashover phenomenon or not and a degree of contaminant flashover are determined qualitatively and quantificationally, thereby, intensity of contaminant flashover of the position where the partial discharge fault easily happens and a size of threat to a system are determined, manpower and regular inspection cost can be greatly reduced, previous power failure time workload is reduced, safety operation of electric power equipment is ensured, maintenance cost is saved, and power supply reliability is raised. The method and the apparatus can be widely used in the on-line detection and fault diagnosis of a power transmission and distribution line.
Owner:SHANGHAI MUNICIPAL ELECTRIC POWER CO +1

Method for producing crimpy type high-grade green tea

The invention discloses a method for producing crimpy type high-grade green tea, which comprises the following sequence of operations: tedding fresh leaves, removing water in rollers, rolling to deblock, performing secondary water-removing, performing third water-removing, tedding to cool, shaping and rubbing, performing secondary tedding to cool and fragrance-extracting, wherein the secondary water-removing means that deblocked tea leaves are put in a 40 type well-known tea water remover for 20-25 seconds at the temperature of 130-140 DEG C; and the third water-removing means that the tea leaves after the secondary water-removing are returned back to a roller and are subjected to another time of water-removing for 15-22 seconds. The method for producing the crimpy type high-grade green tea has the advantages that the problem of long-time baking in a baking machine and many factors causing quality change can be completely solved, the occurrence of damage to tea leaves during warming up or stewing caused by slow manual stir-frying, and uneven stir-frying or not-required temperature at some time is prevented, so that the quality of the tea leaves is unified and is obviously improved; the labor force is reduced, and the yield is enhanced; the production rate is effectively increased, the tea leave dust is reduced, and the color and the luster are stable; and the method is convenient to operate and has little cost for machinery.
Owner:句容市春城馨香园茶场

Integral hydraulic formwork applied to box culvert prefabrication

The invention belongs to the field of box culvert pouring, and provides an integral hydraulic formwork applied to box culvert prefabrication. The integral hydraulic formwork comprises an internal formwork component, a bottom formwork component, an external formwork component, an end formwork component and a retaining formwork component; the internal formwork component includes internal formworks and an internal top formwork; the internal formworks include the first internal formwork and the second internal formwork; the bottom formwork component includes a bottom formwork; the external formwork component includes external formworks; the external formworks include the first external formwork and the second external formwork; the retaining formwork component includes a first retaining formwork and a second retaining formwork; the end formwork component includes a convex end formwork and a concave end formwork; and the space enclosed by the first external formwork, the second external formwork, the first internal formwork, the second internal formwork, the internal top formwork, the bottom formwork, the first retaining formwork, the second retaining formwork, the convex end formwork and the concave end formwork is used for pouring concrete. By mean of the integral hydraulic formwork applied to box culvert prefabrication, the prefabrication quality is high and stable, the adopted set shaped steel formwork has high surface rigidity, is not prone to deforming, and has good flatness.
Owner:INNER MONGOLIA ROAD & BRIDGE

Method for quickly eliminating waste materials and remaining iron in a furnace during blast furnace overhaul

The invention relates to a method for quickly eliminating waste materials and remaining iron in a furnace during blast furnace overhaul. The method is a quickly eliminating method for mechanically detaching waste materials and carbon bricks in a furnace on the premise that a blast furnace shell is locally changed, particularly for mechanically detaching and cleaning furnace materials and carbon brick refractory materials on the premise that the blast furnace shell is locally changed, and moreover synchronously knocking and crushing remaining iron clots in the furnace by means of detaching and falling of the upper cooling wall, and removing both remaining iron clots and waste materials out of the furnace by virtue of a grab excavator. The method has the characteristics of use of few labors, high detaching speed, convenience in operation, quick construction, safe construction and the like, and can be used for increasing the speed for cleaning waste materials in the furnace in the process of blast furnace overhaul. Compared with traditional manual detaching and cleaning mode, the method has the advantages that the speed for cleaning waste materials and remaining iron in the furnace during blast furnace overhaul can be increased and the safety factor of the process of constructing in the blast furnace can be improved.
Owner:河北二十冶建设有限公司

Method for detecting mixed acid solution in manufacturing process of polycrystalline silicon solar cell

The invention discloses a method for detecting a mixed acid solution in the manufacturing process of a polycrystalline silicon solar cell. The method is used for detecting a mixed acid system which consists of hydrofluoric acid, nitric acid and fluorosilicic acid. The method comprises the following steps of: detecting the total acid concentration of the solution by using an acid-base neutralization method; heating and boiling the solution which is subjected to acid-base neutralization, decomposing fluorosilicate to generate hydrogen ions, determining the content of the hydrogen ions by alkali liquor titration, and thus obtaining the concentration of the fluorosilicic acid by calculation; detecting the concentration of the nitric acid in the mixed acid solution by using an oxidation-reduction titration method; and subtracting the concentration of the fluorosilicic acid and the concentration of the nitric acid from the total acid concentration, and thus obtaining the concentration of the hydrofluoric acid. The method is simple in flow, easy to operate and low in economic investment and can be applied to long-term monitoring of a texturing process and an etching process in the production process of the polycrystalline silicon solar cell and stability of equipment, manpower resources are saved, high-end equipment is eliminated, detection accuracy can be over 95 percent.
Owner:济宁高新科达科技项目服务有限公司

Prefabricated shear wall dry type vertical connecting node and construction method

The invention discloses a prefabricated shear wall dry type vertical connecting node and a construction method. The vertical connecting node comprises mutually connected prefabricated shear walls, wherein a tongue and groove joint is arranged at a connecting interface of the prefabricated shear walls; the tongue and groove joint is subjected to hacking treatment; hairpin type connecting elements are respectively buried in positions, near the inner and the outer facades of the prefabricated shear walls, of the tongue and groove joint; the hairpin type connecting elements comprise mutually welded anchor plates and anchor bars; the outer sides of the anchor plates are exposed out of the end surface of the tongue and groove joint; the anchor bars are anchored in the prefabricated shear walls arranged at the inner sides of the anchor plates; the centers of the anchor plates are provided with screw bolt holes; grooves are formed in the prefabricated shear walls positioned at the inner sides of the screw bolt holes; the hairpin type connecting elements arranged at the two sides of the connecting interface are mutually symmetrical; in addition, screw bolts are arranged in a pair of screw bolt holes; and the two ends of the screw bolts are positioned in the grooves. The construction method comprises the steps of prefabricated shear wall manufacturing, butt joint of the hairpin type connecting elements at the tongue and groove joint part, screw bolt installing, mortar filling and the like. The vertical connecting node basically realizes a fully dry type connecting method, the connecting intensity and the bearing force are high, and the node conforms to the requirements of building industrialization and housing industrialization.
Owner:SOUTHEAST UNIV

Ventilating pipe system cleaning system and cleaning method thereof

The invention discloses a ventilating pipe system cleaning system and a cleaning method of the ventilating pipe system cleaning system. The ventilating pipe system cleaning system comprises a cleaningpipeline, a vacuum dust collector, a soft oil cleaning machine, a pipeline peeping instrument, an electric control box and an electric disinfection high-pressure spraying machine. Plugging air bags and a cleaning robot are arranged inside the cleaning pipeline, and inlet and outlet assemblies are arranged on the cleaning pipeline. A cleaning part is fixedly installed on an output shaft of the cleaning robot, and a high-definition pipeline camera is fixedly installed on the top of the cleaning robot. By the adoption of the ventilating pipe system cleaning system, pollutants in a ventilating pipe system can be cleaned away, the situation that a whole ventilating system of a ship is clean can be effectively guaranteed, the supplied air is free of pollutants, the abnormal odor and germs, theair quality is improved, and the physical and psychological health of the crew is facilitated. The pipeline is obstructed by the plugging air bags, and therefore the air pipeline can be cleaned in a subsection mode, the pipeline is conveniently cleaned, the pipeline can be effectively cleaned under the condition that an in-built ceiling and a wall decoration face in the ship are not taken down, and the formed decoration of the ship is not damaged.
Owner:JIANGSU YONGSHENG OCEAN ENG CO LTD

Shaping rack

The invention provides a shaping rack which comprises a rack base, an integral framework arranged on the rack base, and steel bar positioning grooves arranged on the integral framework, wherein the integral frame comprises a plurality of transverse frames transversely arranged on the rack base, two upper longitudinal frames, and two lower longitudinal frames longitudinally arranged on two lateral sides of the rack base; the two lower longitudinal frames are connected with all the transverse frames; both ends of the transverse frames protrude out of the rack base and are perpendicularly connected with upright poles; the top of the upright pole at each side of the rack base is connected with one upper longitudinal frame; a border frame is arranged between the upper longitudinal frame and the lower longitudinal frame at each side; and the steel bar positioning grooves are formed in the transverse frames and the border frames in an equidistant manner. Compared with the prior art, the shaping rack has the beneficial effects that the interval and the size of a steel bar can be precisely positioned, the bundling speed is fast, checking is convenient, few labors are used, protective layer cushion blocks are mounted integrally and spaced uniformly, the steel bar framework manufacturing quality is ensured, the construction cycle is effectively shortened, and the cost is saved.
Owner:GANSU ROAD & BRIDGE CONSTR GROUP

Using method for selenium-enriched chicken cake combined semi-automatic production line

The invention discloses a using method for a selenium-enriched chicken cake combined semi-automatic production line. The method comprises the following steps: during production, preparing raw materials of selenium-enriched chicken cakes, and during processing, enabling the prepared materials to pass through a meat grinder, a chopper mixer and a tumbler so as to obtain filled stuffing; setting thefilled stuffing by a vacuum packer; pushing a meat cake mold to enter a steam box by a handle via a touch switch sealing door, heating at a constant temperature for several minutes to complete cookingof the meat cakes, and stopping heating by a steam water bath; and slicing the meat cakes, and vacuumizing and sealing in a vacuum package machine by manual bagging. The automatic production line isdivided into a burdening platform, an ingredient refrigerating tank, a low-temperature forming box, a steam box vacuum packing platform and a vacuum package machine which are respectively operated bya control console, lots of manual labor is reduced, the yield and product profit are improved, the occupied space is small, and the product is dense and solid in structure, elastic, strong in grain feeling, excellent in slice performance, absent in clustered pore, unique in flavor, fresh and delicious and excellent in market prospects.
Owner:洛阳天佑春都食品有限公司

Method for detecting mixed acid solution in manufacturing process of polycrystalline silicon solar cell

The invention discloses a method for detecting a mixed acid solution in the manufacturing process of a polycrystalline silicon solar cell. The method is used for detecting a mixed acid system which consists of hydrofluoric acid, nitric acid and fluorosilicic acid. The method comprises the following steps of: detecting the total acid concentration of the solution by using an acid-base neutralization method; heating and boiling the solution which is subjected to acid-base neutralization, decomposing fluorosilicate to generate hydrogen ions, determining the content of the hydrogen ions by alkali liquor titration, and thus obtaining the concentration of the fluorosilicic acid by calculation; detecting the concentration of the nitric acid in the mixed acid solution by using an oxidation-reduction titration method; and subtracting the concentration of the fluorosilicic acid and the concentration of the nitric acid from the total acid concentration, and thus obtaining the concentration of the hydrofluoric acid. The method is simple in flow, easy to operate and low in economic investment and can be applied to long-term monitoring of a texturing process and an etching process in the production process of the polycrystalline silicon solar cell and stability of equipment, manpower resources are saved, high-end equipment is eliminated, detection accuracy can be over 95 percent.
Owner:济宁高新科达科技项目服务有限公司

Open well and establishing method thereof

InactiveCN106930363AFast supplement recoveryNo risk of collapseWater resource protectionDrinking water installationEcological environmentEngineering
The invention relates to the technical field of automatic supply of ground water level in soil, in particular to an open well and an establishing method thereof. The open well comprises a well body, the interior of which is provided with a steel bar framework of the well body. The height of the steel bar framework of the well body is the same as the depth of the well body. The framework is wrapped by a metal wire net and anti-filter geotechnical cloth. The open well and the establishing method thereof have the following beneficial effects: the side wall of the well body is permeable to water; the water permeable area is increased by a dozen of times than an ordinary water well; after water is fetched, the underground water level can permeate from the side wall so that rapid recovery and supplement are obtained; resources, capital and manpower can be saved; during construction, hole-wall collapsing danger is avoided and construction speed is high; sand stones of the side wall of the well body are effectively prevented from falling into the well body; there is no need to desilt and clear sand for a long time; the construction cost is low; the water percolating capacity is high; a conventional large number of machine wells are replaced; and the establishing method helps improve the ecological environment and restores the underground water level; the initiative of farmers to open up the open well for fetching water is improved; once people fall into water, they can climb along the framework; and the open well is safe and reliable.
Owner:廖理纯 +1

Preparation method and application of porcine delta coronavirus inactivated vaccine

The invention discloses a preparation method of a porcine delta coronavirus inactivated vaccine. The preparation method comprises the following steps: 1) step-by-step amplification culture of ST full suspension cells in a serum-free culture medium; 2) performing fermentation culture on the ST full suspension cells subjected to amplification culture, when the cells grow to 6 * 10 < 6 > / ml or above, diluting the cells to 4-5 * 10 < 6 > / ml by using a serum-free culture medium containing pancreatin, enabling the final concentration of the pancreatin in the serum-free culture medium to be 20-30mu g / ml at the moment, and inoculating the porcine delta coronavirus according to the MOI of 0.0005-0.001; 3) when the cell density is reduced to (0.5-1.0) * 10 < 6 > / ml, harvesting a cell culture; (4) removing cell debris from the harvested cell culture under a sterile condition and carrying out inactivation treatment; and 5) mixing and emulsifying the virus liquid passing the inactivation inspection and a pharmaceutically acceptable adjuvant according to a certain proportion, and quantitatively subpackaging to obtain the vaccine. The method disclosed by the invention is simple in process, low in production cost, low in labor consumption and high in virus titer.
Owner:浙江洪晟生物科技股份有限公司 +2
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