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376results about How to "Improve thoroughness" patented technology

Beneficiation method for high-oxidation-rate copper-molybdenum paragenic ores

The invention discloses a beneficiation method for high-oxidation-rate copper-molybdenum paragenic ores. The beneficiation method comprises the following steps: (1) crushing: adopting a crusher to crush and screen raw ores, returning the raw ores with a particle size of (+)3mm to crush until the particle size of all raw cores reaches (-)3mm level; (2) carrying out ore grinding: adding the crushed raw ores with the particle size of (-)3mm into raw ore grinding equipment to carry out closed-hoop ore grinding operation, adding an activator with concentration being 1000-3000g/t and a vulcanizing agent with concentration being 250-900g/t into a grinder for grinding the raw cores until raw cores with the particle size of (-)0.075mm account for 55-80%; (3) carrying out primary flotation operation; (4) carrying out flotation scavenging operation; (5) carrying out flotation concentration operation; and (6) carrying out strong magnetic separation operation. The beneficiation method can be adopted to carry out beneficiation enrichment and recovery on copper oxide minerals and molybdenum oxide minerals in the high-oxidation-rate copper-molybdenum paragenic ores so as to obtain high-quality qualified copper concentrate and relatively enriched molybdenum middlings which can be used as raw materials for producing an ammonium molybdate product by chemical wet-process leaching, so that molybdenum oxide resources in the ores are recycled.
Owner:INST OF MULTIPURPOSE UTILIZATION OF MINERAL RESOURCES CHINESE ACAD OF GEOLOGICAL SCI

Embedded planetary-screw pulsation plasticizing exhaust extruder and method

ActiveCN101837633AImprove delivery efficiencyImprove extrusion outputGear wheelRetention time
The invention provides an embedded planetary-screw pulsation plasticizing exhaust extruder, which comprises a screw mechanism, a cylinder, a feed inlet, an air outlet, a discharge outlet and an actuating unit, wherein the screw mechanism comprises a main screw and a plurality of planetary screws, and the axis of the main screw is coincident with the axis of the cylinder; the screw arris of the main screw is provided with a plurality of holes which are matched with the planetary screws; the planetary screws are respectively inserted in the holes of the screw arris of the main screw, embedded into a screw slot and distributed around the main screw; the axes of the planetary screws are parallel to the axis of the main screw; the actuating unit comprises pulsation gears, planetary gears and a pulsation-gear transmission mechanism; the planetary gears are fixed at the ends of the planetary screws and are engaged with the pulsation gears; and the pulsation gears are connected with the pulsation-gear transmission mechanism. The invention also provides an embedded planetary-screw pulsation plasticizing exhaust method implemented by the device. The embedded planetary screw pulsation plasticizing exhaust extruder and the embedded planetary-screw pulsation plasticizing exhaust method have the advantages of adjustable retention time, low energy consumption, thorough exhaust, good uniformity of phase structure control, and the like.
Owner:GUANGDONG IND TECHN COLLEGE

Anti-blocking type drug crushing iron removing device

The invention provides an anti-blocking type drug crushing iron removing device. The anti-blocking type drug crushing iron removing device comprises a left feeding hopper, a motor base, an anti-blocking device, a screen, an iron removing plate, a material storage bin, an extrusion bin, a placing plate and a right feeding hopper. The motor base is fixed to the position, between the left feeding hopper and the right feeding hopper, of the upper end of a box body. A driving motor is arranged at the upper end of the motor base. The lower end of the driving motor is connected with a rotating shaft. The rotating shaft is provided with crushing blades and a crushing knife. The anti-blocking device comprises distribution pieces, a partition plate and distribution rods. The iron removing plate is fixed in the box body and provided with iron removing rods and a fixing ring. The material storage bin is provided with discharging pipes. The extrusion bin is arranged at the lower end of the screen and internally provided with extrusion rollers. The placing plate is connected to the right end of the box body in a welded mode and provided with a drying device. The drying device comprises a filtering box, a first air inlet pipe, an air blower and a second air inlet pipe. According to the anti-blocking type drug crushing iron removing device, crushing is thorough; material blocking can be prevented; iron removing is convenient; and drying is thorough and rapid.
Owner:河南常青藤信息科技有限公司

Shield machine cutterhead

The invention relates to the technical field of tunneling equipment and discloses a shield machine cutterhead. The shield machine cutterhead includes a shield machine cutterhead shell, a receiving turning rod and a connecting turntable, wherein the shield machine cutterhead shell is composed of an outer diameter limiting cutterhead, an inner grinding cutterhead, a central cutterhead and a screening leak hole, the outer diameter limiting cutterhead, the inner grinding cutterhead and the central cutterhead are sequentially nested from the outside to the inside of an inner cavity of the shield machine cutterhead shell, and the outer diameter limiting cutterhead includes an outer diameter limiting cutter and a diversion chute. The shield machine cutterhead is advantaged in that through steppedtunneling and crushing components of the outer diameter limiting cutterhead, the inner grinding cutterhead and the central cutterhead, the tunnel is tunneled and crushed at first, second and third stages in a stepped mode in the working process of the cutterhead driven by a working shield machine, the stress and torsion of crushing cutters such as outer diameter limiting cutters, main crushing cutters and secondary crushing cutters on the cutterhead in the tunneling and crushing process are reduced, and the wear rate of the crushing cutters in the tunneling process is reduced.
Owner:浙江中铁工程装备有限公司

Medical test tube cleaning device

The invention relates to the technical field of medical instrument cleaning equipment, and discloses a medical test tube cleaning device. The medical test tube cleaning device comprises a supporting base, supporting legs are fixedly installed on the two sides of the bottom of the supporting base, and a limiting strip is fixedly installed at the bottom of an inner cavity of the supporting base. According to the medical test tube cleaning device, an adjusting device is arranged to cooperate with a measuring scale for calibration adjusting, accordingly, the situation that after medical test tubesare cleaned for a long time, the positions of the medical test tubes and the position of a cleaning device deviate is avoided, the positions of the medical test tubes are regularly adjusted, the effect that positions of the medical test tubes are relatively perpendicular to the positions of cleaning brushes, thus, the inner cleaning quality of the medical test tubes is improved, and the accuracyof the detection result is improved; and through the adjusting effect of a boosting device and the limiting effect of limiting blocks and limiting grooves, an object stage can be adjusted to integrally move upwards conveniently, the medical test tubes are conveniently pushed upwards to coincide with the cleaning brushes, and the cleaning brushes can conveniently conduct brushing.
Owner:严涛

Test method for studying high-temperature stress on wheat

The invention relates to a test method for studying high-temperature stress on wheat, and belongs to the field of plant seedling high-temperature stress tests. The test method comprises the following steps: seedling culture, variety selection, sodium hydrosulfide solution preparation, sodium hydrosulfide solution spraying, sodium hydrosulfide solution concentration optimization, sodium hydrosulfide solution spraying time and frequency optimization and the like, wherein seedling culture comprises seed selection, soaking of seeds in clean water, seed soaking and sterilization, seed soaking at a constant temperature, germination acceleration, secondary seed selection, seed arrangement, seedling acceleration, seed picking and seedling. Seedling selection and optimization is performed multiple times in the period from seed soaking to seedling transplanting during seedling, therefore, consistency of initial test materials is guaranteed. The sodium hydrosulfide solutions of different concentration are sprayed to wheat seedlings cultivated for 20 days for high-temperature stress relieving tests, and concentration, spraying time, spraying frequencies of the sodium hydrosulfide solutions are optimized; besides, in combination with optimization and innovation of a sampling method during material drawing in the test, the accuracy of final test data can be better guaranteed from test design, procedures and results, therefore, great benefit is provided for final disclosure of physiological and biochemical changes after test treatment.
Owner:SHANDONG AGRICULTURAL UNIVERSITY

Liquid culture method of wheat seedlings

ActiveCN105494062AEliminate growth inconsistenciesEliminate too many deformed seedlingsSeed and root treatmentCultivating equipmentsTest materialSolid substrate
The invention discloses a liquid culture method of wheat seedlings and belongs to the technical field of plant seedling culture. The method comprises the steps that seed selection, clean water soaking, seed soaking sterilization, constant temperature seed soaking, accelerating germination, secondary seed selection, seed arrangement, seedling hastening, seedling picking and seedling growing. In the method, in the process from seed soaking to seedling transplanting, multiple times of seed and seedling optimizing and filtering are performed, solid substrate cultivation is changed into liquid cultivation, the problems of missing seedlings and more abnormal seedlings occurring during solid substrate cultivation can be avoided, the growing uniformity of test materials can be guaranteed during seedling transplanting, and the principle that the single variant is controlled in the experiment design can be well matched. After seedling hastening, enough constantly grown seedlings with high purity can be obtained by one time and used for follow-up test, and the difficulties that the test materials grow not uniform, the malformed seedlings are too many and the seedling growth is weak caused due to the fact that wheat seeds are sowed directly can be eliminated.
Owner:SHANDONG AGRICULTURAL UNIVERSITY

Endoscope surgery instrument and neck bending structure thereof

The invention discloses an endoscope surgery instrument and a neck bending structure thereof. The endoscope surgery instrument comprises a snake bone unit and a traction unit, the traction unit is suitable for bending of the snake bone unit, the snake bone unit comprises a plurality of snake bone joints which are sequentially hinged, each snake bone joint comprises a base portion and a pair of wing portions, the wing portions are integrally arranged on two side of the corresponding base portion, each base portion is provided with a projection portion and a recessed portion, each projection portion projects a pair of wing portions, each recessed portion is arranged at the portion of the corresponding base portion positioned between a pair of wing portions in a recessed manner and is suitable for hinging of a projection portion of a base portion of the other snake bone joint, the recessed portions and the projection portions are coaxially distributed, the traction unit comprises a pair of traction holes, a pair of pull wires and a traction component, the traction holes penetrate a pair of wing portions of a plurality of snake bone joints along the direction of the corresponding baseportion, the pull wires in a pair of traction holes are suitable for penetrating of a plurality of snake bone joints, and the traction component is suitable for traction of a pair of pull wires.
Owner:常州市久成电子设备有限公司

Movable dust removal device for workbench

The invention discloses a movable dust removal device for a workbench. The movable dust removal device comprises a rotating mechanism, a storage mechanism, a dust removal mechanism and a movable base.The top of the movable base is fixedly connected with the rotating mechanism. The top of the rotating mechanism is fixedly connected with the dust removal mechanism. The storage mechanism is fixedlyconnected to the end, away from the rotating mechanism, of the top of the movable base. The movable dust removal device is compact in structure, and cleaning and using of the workbench are facilitated; by arranging a cleaning mechanism, the position of a cleaning brush is adjusted through a first sliding groove and a second sliding groove during using, the flexibility of the structure of the cleaning mechanism is improved, the diversity of the moving angle of the cleaning mechanism is improved, so that the cleaning brush can conduct multi-angle cleaning, convenience and thoroughness of cleaning are improved, and the cleaning efficiency is improved; and by arranging the storage mechanism, cleaning can be conducted through cleaning agent cold water and high-temperature hot water, thus the workbench is cleaned according to different needs, the labor intensity of manual cleaning is lowered, and the cleaning efficiency is improved.
Owner:山东卓辰科技服务有限公司

Hard ultrasonic gallbladder endoscope system and using method thereof

The invention belongs to the field of medical apparatus, and particularly relates to a hard ultrasonic gallbladder endoscope system. The hard ultrasonic gallbladder endoscope system comprises a hard gallbladder endoscope with a hard endoscope body, a miniature ultrasonic probe, and an external camera system and an external light source system which are connected with the hard gallbladder endoscope and the miniature ultrasonic probe. The hard gallbladder endoscope of the hard ultrasonic gallbladder endoscope system enters a gallbladder cavity through a micro incision at the bottom of a gallbladder; the miniature ultrasonic probe enters the gallbladder directly through an instrument channel of the hard gallbladder endoscope under the monitoring of the camera system of the hard gallbladder endoscope by taking the hard gallbladder endoscope as a platform, and simultaneously the miniature ultrasonic probe directly observes the condition in the gallbladder cavity clearly; and under the condition that the gallbladder is filled with liquid, the hard gallbladder endoscope makes diagnoses and gives treatment to various gallbladder diseases, the miniature ultrasonic probe performs real-time ultrasonic scanning and performs circular scanning, linear scanning or three-dimensional reconstruction in 360 degrees on the cavity so as to acquire change images of each layer of the gallbladder wall and organs surrounding the gallbladder, so the hard ultrasonic gallbladder endoscope system can determine the position, the size, the appearance and the range of a focus of a disease, improves the medical quality and the medical safety, and overcomes the defects of a diagnosis and treatment method at present.
Owner:GUANGZHOU BAODAN MEDICAL INSTR TECH

Novel classified sand screening machine for civil engineering

InactiveCN108043707AFully screenedFull filterabilitySievingScreeningCivil engineering
The invention discloses a novel classified sand screening machine for civil engineering. The structure principle that three layers of vibration sand screening plates are sequentially arranged in an inner cavity of a shell from top to bottom at intervals is adopted, raw sand enters a first vibration screening plate from a feeding hopper on the top of a shell, the sand falls onto a second vibrationscreening plate after being screened by the first vibration screening plate, and the sand falls onto a third vibration screening plate after being screened by the second vibration screening plate; filtered sand grains are guided by a first guiding plate, a second guiding plate and a third guiding plate to be guided out of a first sand outlet, a second sand outlet and a third sand outlet in a classified manner; residual raw sand is guided through the third vibration screening plate to be guided out of a fourth sand outlet, accordingly, three-time screening and filtering are finished, sufficientscreening or classified filtering of the raw sand is effectively achieved, and the raw sand screening thoroughness is improved; and meanwhile the novel classified sand screening machine has the beneficial effects of being compact in structure layout, reasonable in integral design, small in occupied space, high in work efficiency and high in practicability.
Owner:KUNMING UNIV

Chinese toon sauce decocting device

The invention discloses a Chinese toon sauce decocting device. The device comprises a decocting tank, an outer heat preservation seat sleeves the outer side of the decocting tank, an electric heatingblock is embedded at the joint of the decocting tank and the outer heat preservation seat, electric heating tubes are embedded in the electric heating block, an unloading pipe penetrating the outer heat preservation seat is connected to the center of the bottom of the decocting tank, a stirring motor is fixed at the center of the top of the decocting tank by bolts, and the top of the decocting tank is provided with an auxiliary material adding port and a main material bin which are symmetrically arranged at two sides of the stirring motor. According to the invention, an auxiliary material boxis welded on the stirring shaft, spray heads are connected to the bottom of the auxiliary material box, auxiliary materials can be added into the auxiliary material box through an auxiliary material adding bin and a feeding port in the using process, then the auxiliary material box is driven to rotate through the stirring shaft, the auxiliary materials in the auxiliary material box can be uniformly scattered on the main materials in the decocting tank, so that the mixing and stirring efficiency of the main materials and the auxiliary materials is improved.
Owner:十堰市天河缘农业科技有限公司
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