Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

63results about How to "Increase overall volume" patented technology

Preparation method for multiphase gel foam for controlling coal autogeneous combustion

InactiveCN101265811AGive full play to the function of suffocation prevention and fire extinguishingIncrease stickinessDust removalFire preventionSpontaneous combustionSlurry
The invention relates to a preparation method of multi-phase gel foam for controlling the spontaneous combustion of coal. The multi-phase gel foam with multiple components of medium is made by adding a slight amount of thickener into the fly ash or the yellow mud slurry to form thickening mud with certain viscosity, adding certain amount of cross-linking agent and foaming agent into the thickening mud, and introducing nitrogen to carry out the physical and mechanical foaming. The bubble wall of the multi-phase gel foam has high viscosity and good elasticity, the fly ash or yellow mud adhere to the bubble wall, and the bubble is internally covered with nitrogen. The multi-phase gel foam is delivered to the mined-out area through the grouting pipeline of the mine, evenly covers the float coal in the mined-out area, and blocks the fractures of the coal body. The method can effectively hinder the oxygen absorption for goal and prevent the oxidization of the coal. The preparation method is simple, and the prepared multi-phase gel foam has low cost and significant effects on fire prevention and extinguishing; the preparation method does not only have the advantages of mud injection, nitrogen injection, two-phase foam injection, gel injection and composite gel injection on fire prevention and extinguishing, and also overcomes the deficiency, which has wide practicality.
Owner:CHINA UNIV OF MINING & TECH

Modified metakaolin-based permeation-resistant and crack-resistant agent for concrete

ActiveCN102515608AImprove permeabilitySlow down infiltration and erosionCrack resistanceSilanes
The invention discloses a modified metakaolin-based permeation-resistant and crack-resistant agent for concrete. The modified metakaolin-based permeation-resistant and crack-resistant agent for concrete comprises: by mass, 10 to 75% of modified metakaolin, 5 to 40% of fine limestone powder, 4 to 40% of superfine coal ash, 1 to 20% of calcined hydrotalcite, 2 to 40% of fine quartz sand and 0.2 to 20% of solid silane powder. A preparation method of the modified metakaolin comprises the following steps of putting dry and washed kaolin into a bowl mill, carrying out grinding to obtain kaolin powder, carrying out calcination of the kaolin powder at a temperature of 500 to 1000 DEG C for 0.5 to 6.0 hours to obtain metakaolin, putting the metakaolin into a dispersion machine, adding an organic modifier of sulfamate or triethanolamine into the metakaolin, wherein a mass ratio of the metakaolin and the organic modifier is in a range of (5000: 1) to (100: 1), and carrying out dispersion to obtain the modified metakaolin having a contact angle of 50 to 100 degrees and a specific surface area of 8000 to 15000m<2>/kg. The modified metakaolin-based permeation-resistant and crack-resistant agentfor concrete can be utilized as a concrete additive, improves strength of concrete at different ages, does not produce obvious influences on concrete work performances, obviously improves anti-chloride ion penetration capability of concrete, reduces total shrinkage of concrete and improves crack resistance of concrete.
Owner:WUHAN UNIV OF TECH +1

Screening gravel grab bucket

The invention relates to a screening gravel grab bucket. The screening gravel grab bucket comprises a grab bucket, a lower bearing beam, an upper supporting rod, an upper bearing beam, lower supporting rods, a hydraulic cylinder, stirring screening devices and gripper regulating devices; the lower bearing beam is of an inverted U-shaped structure; the lower bearing beam is fixedly connected with the main bucket of the grab bucket; one end of the upper supporting rod is connected with the lower bearing beam by use of a hinge, while the other end of the upper supporting rod is also connected with the upper bearing beam by use of a hinge; the other ends of two lower supporting rods are connected by use of a movable ear seat; one end of the hydraulic cylinder is connected with the movable ear seat, while the other end of the hydraulic cylinder is connected with the upper bearing beam; two stirring screening devices are mounted inside the main bucket of the grab bucket, respectively; two gripper regulating devices are mounted on the front ends of the main buckets of the grab buckets, respectively. The screening gravel grab bucket is capable of removing sediment mixed with gravel by virtue of stirring and screening in the grabbing process, and therefore, the strength of the constructed building can be improved; the gradient of the gripper of the grab bucket is adjustable so that the volume of the gravel grabbed at a time can be increased and the grabbing efficiency can be improved.
Owner:浙江雅迅眼镜科技有限公司

Continuous transmission type quasi non-diffracted wave microwave reactor

The invention belongs to the field of microwave energy application devices, and provides a continuous transmission type quasi non-diffracted wave microwave reactor. The continuous transmission type quasi non-diffracted wave microwave reactor comprises a reaction device, a transmission device, a feeder device and a supporting device; the feeder device comprises a radiator, feed waveguides, a power distribution and phase shifting device, a coaxial transmission line and a microwave source; the microwave source is connected with the input end of the power distribution and phase shifting device through the coaxial transmission line, the output end of the power distribution and phase shifting device is connected with a plurality of the feed waveguides, the feed waveguides penetrate through a metal cavity to be connected with the radiator, the radiator is located right at the lower middle part of the back of the metal cavity, and rectangular radiation mouths which are docked with the feed waveguides and have the same sizes with the feed waveguides are formed in the radiator. The continuous transmission type quasi non-diffracted wave microwave reactor disclosed by the invention adopts a method of using multiple feed ports to feed to generate non-diffracted waves to irradiate reactants, so that the reaction efficiency is improved, the reaction speed is accelerated, the reaction uniformity is enhanced and the energy is saved, and in addition, the continuous transmission type quasi non-diffracted wave microwave reactor is combined with a continuous transmission type production line to be applied to the large-scale industrial production.
Owner:UNIV OF ELECTRONIC SCI & TECH OF CHINA

Flexible solar wing unfolding mechanism with high unfolding-folding ratio

The invention discloses a flexible solar wing unfolding mechanism with a high unfolding-folding ratio. The flexible solar wing unfolding mechanism comprises a bottom plate, a shear fork rod assembly, a top plate and a solar blanket assembly; the unfolding mechanism further comprises a driving assembly integrated on the bottom plate; the driving assembly is provided with a driving motor and a transmission gear, and the transmission gear extends to the upper part of the bottom plate; and the driving assembly is in transmission connection with the shear fork rod assembly through the transmission gear and drives the shear fork rod assembly to be unfolded so as to drive the solar blanket assembly to be unfolded. The unfolding mechanism is simple in structure, high in reliability and small in mass; most structural parts in the mechanism are made of spaceflight-grade hard aluminum alloy and carbon fiber composite materials, the mechanical structure is simple and not numerous and jumbled, and the structural parts are subjected to lightweight design improvement on the premise that the strength and vibration requirements are guaranteed; and the unfolding mechanism is low in manufacturing cost and material price, structural parts are simple in structure and convenient to manufacture, the shear fork rod assembly drives the solar blanket assembly to move, and the unfolding mechanism has the advantages of being light in weight, small in folding size, large in unfolding span and high in unfolding and folding ratio.
Owner:CHANGGUANG SATELLITE TECH CO LTD

Air filter of diesel engine

The invention discloses an air filter of a diesel engine. The air filter comprises a water tank, a gas guide tube, a gas inlet tube, a fan and a filter, wherein a gas inlet, a gas outlet, a water filling hole and a water outlet are formed in the water tank; a gas distributing tube is arranged on the bottom of the water tank; an aeration head is mounted on the gas distributing tube; a pore plate is arranged on a position, above the gas distributing tube, in the water tank; at least two particle filling layers are arranged above the pore plate; one end of the gas guide tube is connected with the gas inlet tube; one end, far from the gas inlet end, of the gas guide tube penetrates through the gas inlet of the water tank, extends into the water tank, and is communicated with the gas distributing tube; a dustproof net is arranged in the gas inlet tube; a dust removal tube and an air inlet are formed in the side wall of the gas inlet tube; center lines of the dust removal tube and the air inlet are arranged on the same straight line; a fan is mounted at the air inlet; the filter is positioned at one side of the water tank; and the filter is connected with the gas outlet of the water tank. According to the air filter, the filter efficiency is greatly improved, so that air entering the diesel engine is kept clean, damages to the diesel engine are avoided, and the service life of the diesel engine is prolonged.
Owner:ANHUI QIFENG MACHINERY & EQUIP

Nucleic acid detection kit for six respiratory viruses and use method

The invention discloses a nucleic acid detection kit for six respiratory viruses and a use method. The nucleic acid detection kit for the six respiratory viruses comprises six respiratory virus reaction liquid, positive control liquid and negative control liquid, and the six respiratory virus reaction liquid is freeze-dried powder which is pre-sub-packaged into eight connecting tubes, wherein the six respiratory virus reaction liquid A / B tubes contain a plurality of probes with different fluorescence labels, primers, enzyme mixtures, reinforcing agents, freeze-drying protective agents, 10 * buffer, nucleotide mixtures and the like; whether respiratory syncytial virus, respiratory adenovirus, human metapneumovirus, parainfluenza virus type I, parainfluenza virus type II and parainfluenza virus type III exist or not can be detected in the same reaction system, each of the A / B tubes is provided with an internal reference control, and the internal reference control is a human conserved gene beta-actin fragment marked as ROX; and the internal reference control can display the occurrence of false negative, so that the occurrence of a false negative interpretation result caused by an inhibitor in a sample or misoperation is avoided, and the accuracy of PCR detection is improved.
Owner:SHANGHAI BIOGERM MEDICAL TECH CO LTD

Gel pen based on solar illumination

InactiveCN105946401AIncrease overall volumeReduce the frequency of refill replacementWriting implementsElectricityAdhesive
A gel pen based on solar illumination solves the problems that a pen refill of an existing gel pen is too small in capacity, the pen refill capacity increasing manner is singular, and the existing gel pen is not provided with a built-in auxiliary light source under the condition that brightness is low. The gel pen based on solar illumination is mainly characterized in that a pen refill is spiral, the length of the pen refill can be increased through the spiral shape, and therefore the capacity and the volume are increased; a pen tail is composed of a small cylinder and a spherical solar cell, and the small cylinder is a carrier of the spherical solar cell; the spherical solar cell of the pen tail is connected to the position of a switch of a pen body and then connected to an LED lamp at the position of a conical pen point through conductive silver adhesives, and when a miniature button is pressed, the spherical solar cell achieves conversion from optical energy to electric energy, and the annular LED lamp can be brightened up; the pen point is rotationally connected with the pen body, and the small cylinder of the pen tail is also rotationally connected with the pen body; and when the pen is not used, a pen cap is installed on the pen, the pen refill is protected through a rubber groove, and the annular solar cell can be charged and store electricity.
Owner:MIANYANG XIAODI SHENGDIAN CREATIVE SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products