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2277results about How to "Avoid getting lost" patented technology

Rock-soil body temperature-control dynamic characteristic test system and test method

The invention discloses a rock-soil body temperature-control dynamic characteristic test system and method, is characterized in that the system includes a dynamic triaxial pressure chamber and a temperature control device; the dynamic triaxial pressure chamber comprises a pressure chamber cylinder body, a piston rod and an upper dowel bar; a sample is arranged between the lower end of the upper dowel bar and the upper end of the piston rod; the dynamic triaxial pressure chamber also includes a pressure sensor, an axial displacement sensor, a deformation sensor, a confining pressure sensor, a lateral displacement sensor and a pore pressure sensor; the temperature control device includes a temperature sensor, a temperature controller and an arc plate type heater symmetrically coating the outer wall of the pressure chamber cylinder body. The temperature-control dynamic characteristic test method mainly includes installing the sample, setting the temperature control device, carrying out drainage consolidation of the sample, applying dynamic/static stress, and completing a temperature-control dynamic/static triaxial test, to determine the cumulative plastic strain, dynamic damping ratio, dynamic elastic modulus and other indexes of a rock-soil body under different temperatures. The system and the method have the advantages of uniform heating temperature, short heating time and low cost, and can accurately control the temperature in the pressure chamber.
Owner:NINGBO UNIV

Temperature-control pressure chamber system for unsaturated soil tri-axial apparatus

The invention relates to a temperature-control pressure chamber system for an unsaturated soil tri-axial apparatus, and the system comprises a loading platform and a pressure cover, wherein the pressure cover is fixedly arranged on the loading platform; the pressure chamber system further comprises a temperature control system which is connected to the pressure cover; the pressure cover comprisesa top cover and an outer wall; the outer wall has a sandwich structure; the temperature control system comprises an electric heating plate, a lead, a temperature controller and a temperature sensor; the electric heating plate is arranged in the sandwich layer of the outer wall and is connected to the temperature controller through the lead; the temperature sensor is fixed on the top cover of the pressure cover through a fixing nut; and one end of the temperature sensor is arranged in the pressure cover while the other end is connected to the temperature controller through the lead. The systemis used for realizing the precise control and measurement for the test temperature on the basis of the conventional unsaturated soil tri-axial apparatus and is used for carrying on various unsaturated soil tests at different temperatures, thereby promoting the universality of the ordinary unsaturated soil tri-axial apparatus. Besides, the temperature control is automated and the measured data is accurate.
Owner:BEIJING JIAOTONG UNIV

Method for coal bed methane mining by multi-element thermal fluid foam displacement

The invention discloses a method for coal bed methane mining by multi-element thermal fluid foam displacement. Multi-element thermal fluid is injected into a coal bed of an injection-production well group through an injection well, and foaming agent is injected at intervals. A multi-element thermal fluid foam slug is formed in the coal bed to displace the coal bed methane in order to improve the recovery efficiency of the coal bed methane. The method specifically includes that extracted coal bed methane is compressed and mixed with compressed air, and then the mixture is injected into a multi-element thermal fluid generation device for ignition, extracted processed ground water is mixed to produce the multi-element thermal fluid mainly with high-temperature and high-pressure water vapor and mixed gas of carbon dioxide and nitrogen, the produced multi-element thermal fluid is injected into the underground coal bed through the injection well, a foaming system composed of preferred alkyl ether sulfonate and corrosion inhibitor is injected from an oil jacket annulus at intervals, the multi-element thermal fluid foam slug is formed under the ground to displace the coal bed methane, and water is drained and gas is recovered from a production well. The method has the advantages that fuel is easy to obtain, principles are clear and distinct, and the like, and can provide guidance for implementation of well stimulation of the coal bed methane.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

High-efficiency energy-saving environment-protection barbecue machine

The invention relates to a high effective and energy saving green barbecue machine which comprises a machine case with a stand, a heating device which is arranged in the machine case, a power mechanism which is fixedly arranged at the outer side of the machine case, an air outlet, an air intake mechanism and an oven door at the side wall of the machine case. The machine case is a vertical column shell or at least one assembled column shell. An upper end cover and a lower base plate are respectively and closely arranged on the upper end and the lower end of the column shell; the power mechanism is arranged on the upper surface of the upper end cover of the shell and the center of the inner side of the lower base plate; an air inlet is arranged on the lower end of the heating device; and a temperature controller is arranged in the machine case which is on the upper end of the heating device; an output shaft of the power mechanism runs through a central shaft hole of the upper end cover and a rotating mechanism which comprises a revolution mechanism and an auto-rotation mechanism is arranged on the shaft part at the inner side of the machine case. The high effective and energy saving green barbecue machine of the invention can prevent oil from the meat from dropping to fires and the secondary pollution by the oil smoke, thus reducing disease sources and preventing dust and ash pollution to the air during the barbecue; in addition, the machine occupies less area and is semi-automate, therefore, one person can control a plurality of barbecue machines and the machine is beneficial for popularization.
Owner:河南御寨山庄有限公司

Auxiliary material combination for improving atomizing and drying process of traditional Chinese medicine granules and application thereof

The invention relates to an auxiliary material combination for improving atomizing and drying process of traditional Chinese medicine granules and an application thereof. The auxiliary material combination comprises 10 to 90 percent of betadex and 10 to 90 percent of maltodextrin or dextrine. The application of the auxiliary material combination is: after being dissolved in hot water, the auxiliary material combination is added into extract obtained by extracting Chinese medicine or is directly added into extract to be uniformly mixed and to be atomized and dried; when adding the auxiliary material combination, the temperature of the extract is 50 to 100 DEG C, relative density of the extract is 1.02 to 1.20 (60 DEG C), air inlet temperature for atomizing drying is 140 to 190 DEG C, and the air outlet temperature is 75 to 100 DEG C. by adopting the auxiliary material combination, under the same atomizing and drying condition, the consumed quantity of the auxiliary material is less, the consumption quantity of the auxiliary material can be reduced by more than 30 percent, the auxiliary material with the same quantity is added for atomizing and drying, the softening point of the extract can be improved during the atomizing and drying process, the wall is difficult to be adhered during the atomizing process, the fluidity of the atomizing and drying powder is good, the atomizing and drying powder is difficult to be moistened, the dispersion of the flavor can be effectively prevented during the atomizing and drying process, and the original flavor of the extract is maintained.
Owner:陇西一方制药有限公司

Natural gas hydrate sediment triaxial test device

ActiveCN104833582AApplicable volumetric measurementGain body changeMaterial strength using tensile/compressive forcesDecompositionData acquisition
The invention discloses a natural gas hydrate sediment triaxial test device, and belongs to the field of testing the mechanical properties of natural gas hydrate sediment. The device comprises a triaxial test device main machine, a temperature control system, a pore pressure control system, a confining pressure control system and a computer data acquisition and control system. The triaxial test device main machine, which is in a dual-pressure-chamber structure, can be used for accurately measuring volume change in the sediment in a natural gas hydrate decomposing process; a load sensor is arranged inside the pressure chamber and is capable of improving the precision of intensity data; a pre-cooling hollow cavity is formed inside a base to pre-cool pore gas and pore water which enter a sample, so as to relieve the decomposition of the natural gas hydrate in a saturated water process and to improve the precision of temperature control; in a sample installation process, a quick coupling is adopted for connection, so that the operation is convenient and rapid. The device can simulate the natural gas hydrate decomposing process under mining conditions, so as to achieve the high-precision temperature control, and accurate measurement of intensity and volume change; and the device has great significances for understanding the mechanical properties of the natural gas hydrate sediment and assessing the stability of a reservoir.
Owner:DALIAN UNIV OF TECH

Soil restoration system and soil restoration method thereof

The invention discloses a soil restoration system and a soil restoration method thereof. The soil restoration system comprises a thermal desorption furnace, a combustion device and a waste heat boiler. The thermal desorption furnace comprises a furnace body, a material distributing plate and a first radiant pipe combustor. A thermal desorption region is arranged in the furnace body. The first radiant pipe combustor is arranged on the side wall of the furnace wall so as to provide thermal desorption heat for soil in the thermal desorption region. The position, corresponding to the thermal desorption region, of the furnace body is provided with a volatile gas outlet. The combustion device is provided with a combustion chamber used for combusting gas. The combustion chamber is provided with a fuel gas inlet, a first flue gas inlet and a first flue gas outlet. The fist flue gas inlet communicates with the volatile gas outlet. The waste heat boiler is provided with a second flue gas inlet and a second flue gas outlet. The second flue gas outlet communicates with the first flue gas outlet. According to the soil restoration system, heat in high-temperature oil gas generated in the thermal desorption furnace can be repeatedly used, and loss of lots of heat and energy waste are avoided.
Owner:SHENWU TECH GRP CO LTD

Large-scale aluminum alloy hub isothermal forging production line

The invention relates to a large-scale aluminum alloy hub isothermal forging production line. The large-scale aluminum alloy hub isothermal forging production line is characterized by comprising a bar cutting machine, a bar heating furnace, a plurality of delivery manipulators, a pre-forging hydraulic press, a hub finish-forging hydraulic press, an aluminum alloy hub broaching and trimming hydraulic press and a pressing die. A cold material conveying roller table is arranged between the bar cutting machine and the bar heating furnace, a hot material conveying roller table is arranged between the other end of the bar heating furnace and the delivery manipulators, a die heating furnace, a die change trolley and a change trolley rail are arranged on one side of the pre-forging hydraulic press, a pre-forging lubrication spraying device is arranged on the other side of the pre-forging hydraulic press, a middle heating furnace or a delivery roller table is arranged between each two manipulators, and a finish-forging lubrication spraying device is arranged on one side of the hub finish-forging hydraulic press. The large-scale aluminum alloy hub isothermal forging production line has the advantages that by means of structural and technical combination of hot die forging, broaching and trimming, one-time pressing of aluminum alloy hubs can be realized, the pressing process of the aluminum alloy hubs is simplified, cost, time and labor for later-stage secondary processing and shaping can be greatly saved, and production efficiency is improved.
Owner:TIANJIN TIANDUAN PRESS CO LTD

Method for preparing spherical aluminum nitride powder

The invention provides a method for preparing a spherical aluminum nitride powder. The method comprises the following steps of: 1, mixing aluminum powder with aluminum nitride powder and ammonium chloride powder, putting the mixture into a mortar for grinding, wherein the aluminum powder is spherical aluminum powder having the particle size range from 0.5 micron to 3 microns; and the aluminum nitride powder is prepared from an aluminum source which is spherical aluminum powder having the same particle size with the raw material aluminum powder through in-situ nitrogenation; 2, putting the evenly ground powder in a porous graphite crucible with a graphitic carbon felt exterior heat preservation layer and an interior protective layer and reacting in a reaction device; 3, electrifying graphite paper, and igniting the powder from bottom to cause a combustion reaction; 4, after natural cooling, releasing nitrogen in the reaction chamber, and opening the reaction device, and obtaining an off-white powder in the porous graphite crucible, namely the spherical aluminum nitride powder; and 5, controlling the particle size of the spherical aluminum nitride powder through the particle size of the spherical aluminum powder. The method provided by the invention has the characteristics of low energy consumption, simple process and low cost; and the prepared spherical aluminum nitride powder is good in homogeneity and controllable in particle size.
Owner:咸阳瞪羚谷新材料科技有限公司

Electrothermal blowing dry box

The invention discloses an electrothermal blowing dry box. The electrothermal blowing dry box comprises a box door, an air blower and a box body, wherein the air blower is arranged at the top of the box body; a radiating window is arranged at the right side of the box body; a rotating platform is arranged in the box body; a tray is arranged above the rotating platform; a humidity inductor is arranged on the tray; a temperature inductor is arranged on the inner wall of the box body; a protection plate is arranged at the upper part of the box body; air dispersing holes are uniformly distributed on the protection plate; the box door is arranged at the left side of the box body; an observation window is arranged at the middle part of the box door; a liquid crystal display screen is arranged at the left side of the box door; and an operation panel is arranged below the liquid crystal display screen. The electrothermal blowing dry box is reasonable in structure and practical in function; as the rotating platform is arranged, products are uniformly heated, and the temperature in the box is low in disturbance; electric heating wires are used for heating, so that the temperature adjustment is convenient and precise; and as the heat preservation layer is arranged, the heat loss can be effectively prevented, and the energy utilization rate is largely improved.
Owner:湖州周吴鼎盛化工有限公司

Terminal aggregation method and system for network videos

InactiveCN104144181AExtended Web Video SourcesAvoid choosing trekTransmissionSpecial data processing applicationsMultiple dimensionMetadata
The invention discloses a terminal aggregation method and system for network videos. The method and system are particularly suitable for intelligent television terminals. The system comprises a subscription module, a crawler module, a local database module, a preprocessing module, an interest mining module, a matching filtering module and a UI display module. The subscription module is used for specifying a source for network video aggregation. The crawler module is used for extracting metadata of the network videos. The local database module is used for storing local playing records and local video information. The preprocessing module is used for preprocessing local database data so as to be adaptive to the mining need for interest. The interest mining module is used for mining multi-dimension interest subjects according to a local database. The matching filtering module is used for filtering and sequencing the network videos according to the matching degree of the network videos and user interest. The UI display module is used for displaying a network video list which is obtained through filtering and sequencing. According to the method, the rich playing records of the user on a terminal are used for mining the multi-dimension interest subjects of the user, and the network videos meeting the user interest are aggregated from the massive quantity of network video resources by the utilization of subscription, interest and other limiting conditions.
Owner:INST OF ACOUSTICS CHINESE ACAD OF SCI +1

Self-feeding type energy-saving grain drying device

The invention discloses a self-feeding type energy-saving grain drying device comprising a base. A drying barrel is fixed to the top of the base through a support, a rotating tube is arranged in the center in the drying barrel, and the upper end and the lower end of the rotating tube are rotationally connected with the top wall and the bottom wall of the drying barrel correspondingly. A second speed reducing motor is fixedly arranged at the center of the top of the drying barrel, a motor shaft at the bottom end of the second speed reducing motor is fixedly connected with the top end of the rotating tube, and spiral blades are fixedly mounted at the tube section, located above a screen plate, of the rotating tube. A plurality of one-way air outlet holes are uniformly formed in the tube section, between the spiral blades, of the rotating tube. A hot air blower is fixedly arranged at the right part of the side wall of the drying barrel, the air inlet end and the air outlet end of the hotair blower are connected with hot air tubes correspondingly, and the air outlet end of each hot air tube is connected into the rotating tube. The hot air blower is used for introducing hot air into the rotating tube, the hot air is discharged from the one-way air outlet holes to dry grains, and the heat is uniformly distributed; and the spiral blades are driven by the rotating tube to rotate to drive the grains to roll, so that the grains are heated more uniformly when dried, and the drying effect is good.
Owner:FUJIAN FUXIN AGRI TECH DEV CO LTD
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