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261results about How to "Increase injection volume" patented technology

High efficiency superfine spherical metal powder preparation method and device

The invention discloses a high-efficiency superfine spherical metal powder preparation device, which comprises a shell, a crucible and a powder collecting area, and is characterized in that the crucible is in a circular structure that the inside and the outside are nested, the bottom of the inner accommodating cavity of the crucible and the bottom of the outer accommodating cavity of the crucible are provided with central holes which are through; a space used for flowing molten metal is arranged between the bottom of the inner accommodating cavity and the bottom of the outer accommodating cavity; a tabletting is arranged above the central hole of the inner accommodating cavity, and a drive rod contacts with the tabletting; the central hole bottom of the outer accommodating cavity is provided with a gasket with a hole; the powder collecting area comprises a catch tray and a rotating disk, wherein the catch tray is arranged on the bottom of the shell and the rotating disk is arranged above the catch tray and is connected with a motor. The invention further discloses a method of preparing the superfine spherical metal powder, the method mainly combines a pulse microcellular injection method and a centrifugal atomization method, and the superfine spherical metal powder meeting the usage requirements that the grain size distribution range is narrow, the sphericity is high, the spreadability and the mobility are good, and the production efficiency is high can be prepared.
Owner:DALIAN UNIV OF TECH

Two-stage oxygen supply dry slag removal pressurized gas flow bed gasification furnace

The invention relates to a two-stage oxygen supply dry slag removal pressurized gas flow bed gasification furnace, comprising a cylinder-shaped pressure-bearing case, a gasification chamber arranged in the cylinder-shaped pressure-bearing case, a synthesis gas cooling chamber, a mechanical slag crusher and a slag locking tank; wherein the gasification chamber and the synthesis gas cooling chamberare respectively arranged at the upper part and the lower part in the cylinder-shaped pressure-bearing case, the mechanical slag crusher is arranged below the bottom of the gasification furnace, and the slag locking tank is arranged below the mechanical slag crusher. The invention adopts two-stage oxygen supply temperature control technology and water vapour temperature control technology, and reasonable dry slag removal structure and necessary automatic control means are combined, solid slag removal of China 'double-high' coal large-scale pressurized gas flow bed gasification is realized, and the invention is especially applicable to 'double-high' coals with high ash content (25-27%) and high ash melting point (FT is more than 1400 DEG C), and handing capacity of single day can reach about 2000t/d.
Owner:SHANGHAI JIAO TONG UNIV +2

Blast furnace first slag experiment method and first slag experimental furnace

The invention relates to a blast furnace first slag experiment method and a first slag experimental furnace which solves the problem that the current experiment method can not well guide the optimization of furnace material structure for first slag can not be acquired. The first slag experimental furnace comprises an electric furnace and an air distribution cabinet, wherein the electric furnace is provided with a hearth pipe; a graphite crucible positioned on a graphite base is arranged in the hearth pipe; the upper end of the graphite crucible is provided with a center press rod, and the upper end of the center press rod penetrates through the hearth pipe and is provided with an inserted thermocouple; a material surface load readjusting device is arranged on the center press rod; the upper end of the hearth pipe is provided with an upper cover, an exhaust opening and a displacement sensor, and the lower end is provided with a material receiving box and communicated with the air distribution cabinet by a reducing gas inlet; and a pressure difference transmitter is arranged on a connecting pipeline of the reducing gas inlet and the air distribution cabinet. The experiment method obtains first slag by simulating the blast furnace condition through the first slag furnace, records all detecting data on line and carries out chemical analysis and microscopic detection on the first slag, thereby having important guide significance for optimizing the furnace material structure.
Owner:武钢集团有限公司 +1

Infrared TOC (total organic carbon) analyzer

InactiveCN102410988ABurn fullyAct as a catalyst for combustionColor/spectral properties measurementsInfraredChemical oxygen demand
The invention belongs to the field of environmental monitoring, and discloses an instrument capable of automatically measuring the content of organic matters in surface water and sewage, in particular to an automatic instrument for measuring the content of total organic carbon (TOC) in water, and can realize full-automatic measurement process and meet the national requirements for measurement technical indexes. The infrared TOC analyzer consists of a total carbon measuring system, an inorganic carbon measuring system, a data processing system and a control system, wherein, the control system controls the processes of the total carbon measuring system and the inorganic carbon measuring system and transmits output signals to the data processing system; the total carbon measuring system comprises an automatic sample injection unit, a heating-burning unit and an optical measurement unit; and the inorganic carbon measuring system comprises an acidification unit, a pre-purge unit and an optical measurement unit. By adopting the infrared TOC analyzer, the problem of low temperature in the traditional heating method is solved during the TOC measurement process so that the burning temperature is improved to 1200 DEG C, thus a water sample can be more fully burned and the measurement accuracy is improved; and meanwhile the problems such as a small quantity of the water samples, thermal radiation interference and TOC-COD (chemical oxygen demand) integrated measurement are solved. Therefore, the infrared TOC analyzer is applicable to measuring the content of the TOC in various types of water in the environmental monitoring field and other fields.
Owner:泰安市科瑞光学仪器有限公司

Thermal protection method for scramjet engine fuel injection supporting plate by utilization of transpiration cooling

The invention relates to a thermal protection method for a scramjet engine fuel injection supporting plate by the utilization of transpiration cooling. The method includes the following steps that (1), high temperature resistant material is used for manufacturing the injection supporting plate of a multi-tiny-hole structure, and a fuel pipe of a scramjet engine is communicated with the injection supporting plate; (2), by the utilization of the process that fuel leaks through holes of the injection supporting plate of the multi-tiny-hole structure, and heat convection is performed forcibly, so that the heat on the surface of the injection supporting plate is taken away; (3), it is utilized that the fuel leaks through the surface of the injection supporting plate to form a thin layer, so that main flows are prevented from performing heat transfer on the injection supporting plate. The multi-tiny-hole structure is manufactured on the injection supporting plate material, the concept of transpiration cooling is used, the fuel serves as a cooling agent, so that strong heat convection happens between the fuel and the injection supporting plate in the process that the fuel flows through the injection supporting plate, meanwhile, the fuel forms the thin layer on the surface of the injection supporting plate, heat transfer between the high temperature main flows and the surface of the injection supporting plate is obstructed, thermal protection on the injection supporting plate and particularly the front edge part of the injection supporting plate is achieved, and the injection supporting plate is prevented from being ablated and damaged. The thermal protection method can be widely applied to thermal protection performed on various ramjet injection supporting plate structures.
Owner:TSINGHUA UNIV

Tunneling construction method for penetrating operating tunnel under shield in water-rich silt stratum

The invention relates to the technical field of tunnel construction, in particular to a tunneling construction method for penetrating an operating tunnel under a shield in a water-rich silt stratum. The method comprises the steps of a, conducting test tunneling to obtain construction parameters; b, configuring a double-grout grouting system, a rinsing system and a mixer on the shield, wherein the mixer is used for mixing double-grout conveyed by the double-grout grouting system; c, determining the matching ratio of the double-grout; d, according to the construction parameters obtained in the step a, conducting formal shield construction; e, adopting a technology that water is added or bubbles are grouted to conduct muck conditioning, and synchronously conducting double-grout grouting construction; f, conducting solidification treatment on a soil mass outside a segment in a tunnel. According to the tunneling construction method for penetrating the operating tunnel under the shield in the water-rich silt stratum, by arranging the double-grout grouting system, after the grout is sufficiently mixed through the arranged mixer, and after the mixed grout is grouted to the back of the segment synchronously, the grout quickly solidifies and reaches the demanded strength, the water stop effect is effectively formed, and thus the occurrence of sedimentation in the constructing process of the soil mass is avoided.
Owner:CHINA RAILWAY NO 2 ENG GRP CO LTD

High-efficiency pre-separation pulse bag-type dust collector

The invention relates to a high-efficiency pre-separation pulse bag-type dust collector. The high-efficiency pre-separation pulse bag-type dust collector comprises a dust collector air outlet formed on an upper box body, and a dust collector air inlet formed on the lower part of a middle box body; a blowpipe, a nozzle, a framework and a cloth bag are arranged in the middle box body; the dust collector air inlet is formed on the upper part of the middle box body, and a separator is arranged between the dust collector air inlet and the framework; the cloth bag is arranged on the framework; and a guide plate is arranged below the separator. The high-efficiency pre-separation pulse bag-type dust collector has the advantages that: the motion distance of flue gas and particles inside the dust collector is increased, the adsorption efficiency of alumina particles is improved, the adsorption effect in the whole purification process is improved, gas-solid separation is realized before dust reaches a filter bag, the compressed air consumption is reduced, the load of the filter bag is reduced, and the service life of the filter bag is prolonged. The dust collector is limited to an electrolysis flue gas purification system, and can be applied to other industries of dust removal and flue gas purification.
Owner:SHENYANG ALUMINIUM MAGNESIUM INSTITUTE

Mass spectrum ionization source

The invention discloses a mass spectrum ionization source and belongs to the technical field of mass spectrum ion sources. The mass spectrum ionization source is designed in order to solve the problems that the detection range of an existing ion source ionization source is limited and ionization efficiency is low. The mass spectrum ionization source comprises a sample injection device, a repelling electrode and a dielectric barrier discharge device; liquid or gas samples enter a tee nozzle through a sample injection tube of the sample injection device, and the liquid samples with solvent removed are sprayed out from the lead-out end of the tee nozzle along with carrier gas or the gas samples are sprayed out from the lead-out end of the tee nozzle; reaction gas enters an insulation dielectric cavity through a gas guide tube of the dielectric barrier discharge device, and low-temperature plasma is generated under the action of a discharge electrode and sprayed out from the lead-out end of the insulation dielectric cavity; the low-temperature plasma and the liquid or gas samples converge on a mass spectrum opening in a backflow mode, ionized sample molecules are formed, and the molecules converge to the mass spectrum opening under the action of the repelling electrode. According to the mass spectrum ionization source, not only is the detection range of the ionization source widened, but also the ionization efficiency and the detection sensitivity of an instrument are improved.
Owner:GUANGZHOU HEXIN INSTR CO LTD +2

Downhole low-frequency hydraulic pulsation coupled hydraulic ultrasound generation system applied to injection augmentation of low-permeability reservoirs

ActiveCN107152265ARealize downhole low frequency pulsationOil displacement effect is goodFluid removalSweep efficiencyHydraulic action
The invention discloses a downhole low-frequency hydraulic pulsation coupled hydraulic ultrasound generation system applied to injection augmentation of low-permeability reservoirs. The system comprises a low-frequency hydraulic pulsation generation part and a hydraulic ultrasound generation part, wherein the low-frequency hydraulic pulsation generation part mainly comprises a frustum-shaped cylinder assembly, a compound frustum-shaped piston matched with the frustum-shaped cylinder assembly, a returning spring and the like; the cylinder body, the piston and the returning spring form a hydraulic reciprocating vibration system for generating low-frequency hydraulic pulsation in water injection process of a water injection well; the hydraulic ultrasound generation part comprises a flowing channel nozzle and a vibrating reed and is used for generating ultrasound under hydraulic action of the injected water flow and applying the ultrasound to the reservoirs; the hydraulic ultrasound is capable of removing blockage of reservoirs close to the well wall; the low-frequency hydraulic pulsation is capable of effectively improving permeability of the reservoirs, reducing the surrounding flow of the injected water, improving the volumetric sweep efficiency and augmenting injection and assisting for increasing recovery ratio; the system is capable of outputting low-frequency hydraulic pulsation and hydraulic ultrasound of a hydraulic driving manner based on operation displacement range of the low-permeability water injection well, integrally augmenting injection and improving the recovery ratio.
Owner:XI'AN PETROLEUM UNIVERSITY

Lithium ion cylindrical battery and processing method thereof

The invention discloses a lithium ion cylindrical battery. The lithium ion cylindrical battery comprises a shell and a roll core arranged in the shell; current collecting discs are fixedly connected to the two ends of the shell correspondingly; the roll core comprises a positive pole plate, an inner diaphragm, a negative pole plate and an outer diaphragm which are sequentially overlapped and woundinto a cylinder; a positive tab is arranged at one end of the positive pole plate; a negative tab is arranged at one end, far away from the positive tab, of the negative pole plate; the height of theroll core is smaller than that of the shell; the two ends of the roll core are of circular truncated cone structures; and annular grooves matched with the circular truncated cones on the roll core are formed in the current collecting discs. According to the lithium ion cylindrical battery of the invention, a part of the tabs are cut at the positive pole and the negative pole, so that the tabs arranged at intervals and connected with the pole plates can be obtained, and therefore, the length of the tabs is reduced, the length of the tabs is smaller than that of the pole plates, the weight of the battery is reduced; only one-time welding is needed, and therefore, welding frequency is reduced, welding quality is improved, and a reject ratio caused by welding breakdown is reduced.
Owner:国轩新能源(庐江)有限公司

High-pressure jet grouting and shallow-layer stirring combination in-situ remediation method for soil and underground water

The invention provides a high-pressure jet grouting and shallow-layer stirring combination in-situ remediation method for soil and underground water and belongs to the technical field of soil and underground water in-situ remediation methods. The combination in-situ remediation method comprises the following steps: distributing high-pressure jet grouting in-situ injection points, and carrying out measurement, locating and pre-boring; carrying out the high-pressure jet grouting injection of a deep layer in one to three times; carrying out the in-situ stirring of a shallow layer in one to two times; carrying out agent reaction and underground water monitoring; and carrying out self-inspection and acceptance. Agents which are injected for high-pressure jet grouting injection in three times are sequentially C+N1+N2, K and K+B. Agents which are added for the in-situ stirring of the shallow layer are C+F+N1+N2. The highest adding ratio of part of the high-pressure jet grouting injection of the deep-layer zone is as follows: the agent C accounts for 1.6-2.4%, and the agent K accounts for 1-5.4%. Being used as the remediation solution of an organic pollution engineering with sporadic pollution spots in part of severe soil and underground water plots, the remediation method has the advantages of being short in construction period, being great in effect and being capable of adapting to various strata and is used as an important technical means for replenishing remediation.
Owner:BCEG ENVIRONMENTAL REMEDIATION CO LTD
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