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130results about How to "Alleviate needs" patented technology

Gravity separation middling coal separation technology

InactiveCN104437831AReduce over-crushingImprove equipment sorting efficiencyGrain treatmentsWet separationGravity separationEngineering
The invention belongs to a coal washing method and discloses a gravity separation middling coal separation technology. Gravity separation middling coal is fed into rough grinding equipment. Products obtained after rough grinding is fed into screening equipment for primary classifying, and primary plus-sieve products and primary minus-sieve products are obtained. The primary plus-sieve products are fed into a dense medium cyclone for separation. The primary minus-sieve products are fed into separation equipment for secondary classification, and secondary plus-sieve products and secondary minus-sieve products are obtained. The secondary plus-sieve products are fed into fine grinding equipment for fine grinding. Products obtained after fine grinding and the secondary minus-sieve products are fed into size mixing equipment together for completing flotation. Two-time ore grinding, gravity separation and floatation combination and classifying separation are combined to separate gravity separation middling coal, under the premise that the middling coal dissociation degree is improved, the phenomena of over crushing are reduced, equipment separation efficiency is obviously improved, clean coal in the middling coal is recycled to the maximum degree, the coal preparation plant clean coal productivity is increased, and enterprise economical benefit is improved.
Owner:CHINA UNIV OF MINING & TECH

Device and method for testing wireless baseband chips in base station side

ActiveCN101557598AMake up for the defect that the bit-level calibration function at a specified time point cannot be completedAlleviate needsTransmitters monitoringReceivers monitoringData streamTest fixture
The invention relates to a device for testing wireless baseband chips in a base station side, which comprises mutually connected chips to be tested and a controller unit, wherein the chips to be tested are used as uplink and downlink tested objects, and the controller unit controls the generation of the data stream of an uplink antenna of the chips to be tested or collects the data stream of a downlink antenna of the chips to be tested at a right time point. The method comprises the steps: inquiring the state of the chips to be tested, reading uplink processing results output by the chips to be tested, comparing the uplink processing results with uplink parameter results, or comparing collected downlink antenna data streams with downlink parameter results, and inquiring the downlink operating state of the chips to be tested so as to respectively judge the correctness of the uplink processing results and the downlink processing results of the chips to be tested. The invention can make up the defect that a special wireless testing instrument can not achieve the function of bit-order calibration at a specified time point, alleviates the requirements of a plurality of sets of testing environments to a plurality of testing instruments and saves the costs of research and development.
Owner:SANECHIPS TECH CO LTD

Electric automobile charging equipment, parking field, system and method based on automatic identification

InactiveCN109353236ARealize fully automated managementNumber of reliefCharging stationsElectric vehicle charging technologyRemote controlParking space
The invention discloses electric automobile charging equipment, a parking field, a system and method based on automatic identification, and mainly relates to the field of charging piles. The electricautomobile charging equipment comprises a control assembly, a track assembly, an electric pile assembly and a charging arm assembly; the rear part of a standard parking space is provided with electricautomobile quick charging equipment based on automatic identification and butt joint, the electric automobile quick charging equipment also comprises a remote control module and a quick charging equipment module; after the electric automobile is parked in the standard parking space by a user, the electric automobile is reserved for charging by the remote control module; the remote control modulefeeds back a charging instruction of the user to a control host, and the control host carries out time sequence control on the charging instruction of the user and identifies and charges the corresponding electric vehicle. The electric automobile charging equipment, the parking field, the system and method based on automatic identification have the advantages that under the condition that when theuser leaves, the functions of charging reservation, sequencing control, remote viewing, automatic butt joint and the like can be achieved, so that the user can leave as soon as the automobile is parked, the charging operation of the electric automobile is greatly facilitated, the operation safety is improved, and the utilization efficiency of the charging piles is obviously improved.
Owner:济南万象轩智能科技有限公司

A high-temperature resistant seawater-based polymer fracturing fluid capable of continuous blending and a preparing method thereof

A high-temperature resistant seawater-based polymer fracturing fluid capable of continuous blending and a preparing method thereof are disclosed. The fracturing fluid includes 0.4-0.8 wt% of a thickening agent, 0.3-0.6 wt% of an auxiliary synergist, 0.2-0.4 wt% of an activating agent, 0.2-0.4 wt% of a metal ion stabilizer, and 0.3-0.4 wt% of a temperature stabilizer, with the balance being seawater. Beneficial effects of the fracturing fluid are that: a water-soluble multi-component copolymer is adopted as the thickening agent of the fracturing fluid system so that the fracturing fluid can rapidly swell in seawater having a high degree of mineralization; a low-viscosity high-elasticity fluid having a high space structure is formed through synergistic effects (non-crosslinking functions) with the auxiliary synergist; a sand-carrying property is good when the apparent viscosity is greater than 20 mPa.s; the prepared fracturing fluid is not eroded by bacteria, has characteristics of salt resistance, good temperature resistance and shearing resistance, low harm, no residue after cleaning, and the like, and can be prepared in batch or mixed continuously by adopting sea water; and the fracturing fluid can significantly reduce offshore fracturing construction costs and can increase fracturing construction efficiencies and reservoir yield-increasing effects.
Owner:SOUTHWEST PETROLEUM UNIV +1

Blast furnace injection material

The invention relates to a blast furnace injection material which is prepared in steps of preparing candle coal or noncaking coal into a lumpiness of 10-100 mm, carrying out carbonization in a carbonization furnace at 600-700 DEG C for 24 hours, classifying and processing the coal after the carbonization, and selecting powder of which the particle size is less than 5 mm as the blast furnace injection material. The invention lowers the blast furnace ironmaking coke ratio and the cast iron cost; can regulate the thermal system of the furnace, improve the operating state of the blast furnace hearth and ensure the stable and smooth operation of the blast furnace; and reduces the theoretical combustion temperature and creates conditions for realizing high-wind temperature and oxygen-enriched blast of the blast furnace. Compared with the gasification of coke, the gasification of injection coal powder discharges more hydrogen, thereby enhancing the reducibility and the penetration diffusivity of the gas and being beneficial to the improvement on ore reduction and blast furnace operation indexes. Metallurgical coke is replaced by the injection coal powder partially, thereby moderating requirements for the coke, decreasing coking facilities and saving the investment of capital construction. Besides, the invention decreases coke furnaces and produced coke and reduces the environmental pollution caused by coking production, and simultaneously, and powder generated in the semicoke production can be fully utilized.
Owner:杨兴平

Mechanical arm action learning method and system based on third-person imitation learning

ActiveCN111136659ABreak the balance of the gameGame balance maintenanceProgramme-controlled manipulatorThird partyAutomatic control
The invention discloses a mechanical arm action learning method and system based on third-person imitation learning. The method and system are used for automatic control of a mechanical arm so that the mechanical arm can automatically learn how to complete a corresponding control task by watching a third-party demonstration. According to the method and system, samples exist in a video form, and the situation that a large number of sensors are needed to be used obtaining state information is avoided; an image difference method is used in a discriminator module so that the discriminator module can ignore the appearance and the environment background of a learning object, and then third-party demonstration data can be used for imitation learning; the sample acquisition cost is greatly reduced; a variational discriminator bottleneck is used in the discriminator module to restrain the discriminating accuracy of a discriminator on demonstration generated by the mechanical arm, and the training process of the discriminator module and a control strategy module is better balanced; and the demonstration action of a user can be quickly simulated, operation is simple and flexible, and the requirements for the environment and demonstrators are low.
Owner:NANJING UNIV

Method for co-producing dawsonite and tobermorite from fly ash

The invention provides a method for extracting alumina from fly ash. According to the mol ratio of CaO to SiO2 being 0.3 to 1.5 and the liquid-to-solid ratio being 5ml/g to 50ml/g, quick lime, fly ash and water ingredients are mixed; 5g/L to 100g/L of NaOH is added for regulating the pH value of slurry; the reaction is performed for 0.5h to 12h in a high-pressure sealed container with the temperature being 120 DEG C to 260 DEG C; through solid-liquid separation, digestion solution containing sodium metaaluminate as main ingredients and digestion slag containing tobermorite as main ingredients are obtained; then, CO2 gas with the volume concentration being 10 percent to 100 percent is introduced into the digestion solution; along with the reduction of the pH of the solution, aluminum oxide compounds are separated out in a crystal form; when the pH is 9.5 to 8.0, the gas introduction is completed; then, through the solid-liquid separation operation, crystals containing the dawsonite as the main ingredients are obtained. The method has the advantages that the low-cost recovery and utilization on aluminum resources in the fly ash can be realized; the obtained dawsonite can be used for producing aluminum salt chemical products, or can be used for producing metallurgy grade aluminum oxide and the like after being purified; the obtained tobermorite is used as ingredients for producing cement and concrete, and the product intensity can be improved.
Owner:CENT SOUTH UNIV

Novel tidal power developing mode and universal condition tidal power plant

InactiveCN101178050ARelieve the pressure of carbon dioxide emission reductionExtended power generation timeWater-power plantsMachines/enginesControllabilityShallow sea
The invention provides a tidal power generation method and a universal tide power plant. Two reservoirs A and B are enclosed by a cofferdam method on a shoal or shallow sea; furthermore, a water inlet strobe and a water outlet strobe are arranged on the cofferdam to correspond to the reservoir A and the reservoir B; a separation levee between the reservoir A and the reservoir B is provided with a hydraulic generator set which generates power by water head; when an astronomic tide ebbs to the lowest tide level, the water outlet strobe corresponding to the reservoir B is closed to wait for flood tide; when the tide is flooded, the water inlet strobe of the reservoir A is opened and the water enters; furthermore, when the water level reaches the water head between the reservoir B and the reservoir A more than the minimum design of the water head difference for generation, the hydraulic generator set starts to generate power; when the astronomic tide is flooded to the highest tide level, the water inlet strobe of the reservoir A is closed, and the hydraulic generator set continues to generate power by the water head between the reservoir A and the reservoir B when the water level of the B reservoir ascends and the water level of the reservoir A descends; when the tide level ebbs below the water level of the reservoir B, the reservoir B is opened and the water is discharged out, leading the water level of the reservoir B is reduced to the minimum tide level with the ebb and the hydraulic generator set can continue to generate power till the tide is flooded to the next circulation. The invention has the advantages of long generation time, low manufacture cost of unit electric energy, strong controllability of electric energy quality, wide applicable range of plant establishment, high comprehensive exploitation rate of resource, etc.
Owner:林斌炎

Process for hydrogen production by adsorption catalysis of crude synthetic gas and device thereof

ActiveCN106629600AEliminate desulfurizationOmit separabilityHydrogenHydrogen/synthetic gas productionCombustionWater vapor
The invention discloses a process for hydrogen production by adsorption catalysis of crude synthetic gas and a device thereof. The process comprises the following steps: 1) mixing water vapor and the crude synthetic gas according to a water-carbon mol ratio of 2 to 6, adding a reduced reforming catalyst with an adsorption function, and carrying out a reforming hydrogen-producing reaction in a fluidized state; 2) oxidizing the reforming catalyst after a high-temperature combustion reaction so as to remove carbon deposit and sulfur-containing components on the reforming catalyst, and heating the reforming catalyst so as to release CO2 and realize regeneration; and 3) subjecting the regenerated reforming catalyst to in-situ reduction at 400 to 900 DEG C, subjecting the reduced reforming catalyst to circulating production of hydrogen, i.e., a product. According to the invention, the crude synthetic gas containing coal tar and sulfur can be further converted into hydrogen, so sulfur removal and coal tar separation of the crude synthetic gas are saved, and the selection range of hydrogen-producing raw gases is greatly broadened; through in-situ reduction of the reforming catalyst, a reduction procedure is not needed to be additionally arranged; and the device provided by the invention saves the use of auxiliary equipment like a degassing tank and a reduction reactor, so procedures are greatly simplified.
Owner:WUHAN KAIDI ENG TECH RES INST CO LTD

Soapberry cutting seedling method

The invention discloses a soapberry cutting seedling method and belongs to the technical field of plant vegetative propagation. A soapberry one-year-old bearing branch is used as a cutting shoot, soaking in a mixed solution with the concentration of 100 mg / L of ABT number one rooting powder, naphthylacetic acid and spermidine is carried out, and then the branch is inserted into a mixed matrix of yellow soil, herb-residue-containing decomposition organic fertilizer and vermiculite for seedling culturing. The one-year-old bearing branch is used as the cutting shoot, the survival rate is high, and the requirement on improved variety of raw material forest construction can be effectively relieved. The mixed matrix of the yellow soil, the herb-residue-containing decomposition organic fertilizer and the vermiculite is used for cutting, a cutting shoot root system is developed, coppice shoot growing is vigorous, the number of cutting shoot rotting phenomena is small, the cutting shoot is subjected to soaking in the mixed solution of the ABT number one rooting powder, the naphthylacetic acid and the spermidine, cutting shoot callus forming is quick, early rooting can be achieved, and the number of formed adventitious roots is large. The technology provides supporting for soapberry professionalization and large-scale vegetative propagation, and great significance is achieved in soapberry five breed promotion and early high yield.
Owner:RES INST OF SUBTROPICAL FORESTRY CHINESE ACAD OF FORESTRY
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