1860results about How to "Quick break" patented technology

Fluids viscosified with viscoelastic surfactants (VESs) may have their viscosities reduced (gels broken) by the direct or indirect action of a composition that contains at least one metal ion source and optionally at least one second source. An optional second source may be a chelating agent where at least one reducing agent source may be additionally optionally used. Another optional component with the metal ion source includes a second, different metal ion source. The breaking composition is believed to directly attack the VES itself, possibly by disaggregating or otherwise attacking the micellar structure of the VES-gelled fluid, and / or possibly by changing the chemical structure of the VES to give two or more products.

The invention discloses an autonomous vehicle obstacle avoidance method based on an arc path. The autonomous vehicle obstacle avoidance method comprises the following steps of: S1, acquiring the position of a vehicle at any moment through a positioning system; S2, judging whether an obstacle exists in a specific region of a detection range or not, and if so, measuring the distance between the vehicle and the obstacle; S3, selecting a manner of advancing toward a target or walking around the obstacle by the vehicle according to an obstacle distribution condition to realize collision-free navigation towards a fixed target point in an unknown environment; and S4, adding a turning route selection mechanism in the manner of walking around the obstacle, and determining an optimal obstacle avoidance driving route according to the information of the obstacle. The autonomous vehicle obstacle avoidance method disclosed by the invention sufficiently utilizes the advantages of a BUG obstacle avoidance algorithm, and the vehicle is only required to have a detection range of 180 degrees; a physical size and a driving character of the vehicle are also considered and the problem that a four-wheeled vehicle in a non-360-degree detection range cannot use the BUG algorithm is solved; continuous and smooth by-pass movements by navigation obstacle avoidance is realized through a transition path track generated at a turning point.

A quick insertion fastener has an internally threaded first member ("nut") adapted to be quickly attached and tightened on an externally threaded second member ("bolt"). The nut is formed with a casing with an internal frusto-conical front surface, a plurality of threaded shell segments contained in the casing having external frusto-conical front surfaces which abut the front surface of the casing, a spring member positioned at a rear part of the casing which elastically holds the rear ends of the shell assembly together, and an end retainer provided at the rear part of the casing having a taper for engaging the rear ends of the shell assembly and displacing them radially apart when the shell assembly is displaced axially toward the end retainer by insertion of the bolt. This allows the bolt threads to move without interference past the internal threads of the shell segments. When the insertion force of the bolt is released, the spring member urges the shell segments together so that the internal threads of the shell assembly become engaged with the bolt, and the nut can be tightened on the bolt. The spring member may be a radial spring or O-ring, or in the alternatively may be a wave compression spring, segmented spring, circumferential or axial leaf springs, or a flexure spring formed integrally with the end retainer. The nut may also be configured with an external sleeve member for pulling the shell assembly back relative to the nut casing for quick disengagement from the fastener.

An apparatus for marking a defect detects a defect in a long sheet product transferred in a longitudinal direction by an inspection apparatus and places a mark at the defect at a position downstream of the inspection apparatus. An oil-based marking pen is contained in a container tube having a shutter for closing the tip of the pen. The shutter is opened based on a signal sent from the inspectionapparatus, a mark is placed at the defect in the long sheet product by the tip of the pen pushed out of the container tube, the pen is pulled back into the container tube after the marking is completed, and the shutter is closed. The mark can be placed at the portion of the detected defect by an oil-based marking pen without causing a decrease in the marking property due to drying of the tip of the pen.

The invention discloses a reinforced concrete beam precrushing device. The reinforced concrete beam precrushing device comprises a workbench, a shearing device, a crushing device and a moving device used for moving reinforced concrete beams. A track used for allowing the reinforced concrete beams to move is arranged on the workbench. The shearing device and the crushing device are fixed on the workbench and are above the track. The moving device is movably arranged at one end of the track and moves from one end of the track to the other end of the track. Hydraulic power is adopted for static pressing shearing and crushing of the large reinforced concrete beams, reinforced concrete is rapidly crushed, rebars and concrete are separated, the speed is high, the yield is high, the noise is low, dust is few, the automation degree is high, the worker labor intensity is low, and thus a quite environmentally friendly mechanical crushing method is achieved. The reinforced concrete beam precrushing device has the advantages of being simple in structure, convenient to operate and maintain, safe, efficient, environmentally friendly and the like.

There is described a fracturing fluid comprising a polar base, 0.1-5.0% of a mid-molecular weight polyacrylate, and an activator for ionizing the polyacrylate to a hydroscopic state.

The invention discloses an electric pulse rock-breaking dill bit and an experimental facility thereof. The electric pulse rock-breaking experimental facility comprises a confining pressure pumping station, a pulsed power supply, a PLC control device, a confining pressure cylinder horizontal-moving device, a water inlet and outlet pump, a confining pressure cylinder assembly, a high-pressure electric pulse rock-breaking drill bit body, and the like. The high-voltage pulsed power supply is used for transmitting high-voltage pulse electricity from a high voltage electrode to a low voltage electrode through a cable, the high-voltage pulse electricity meeting certain conditions breaks through rocks firstly to generate a discharge channel, a plasma channel expands when heated, when the pressureexceeds the stress intensity of the rocks, and the rocks are broken and the high-voltage pulse discharge drilling is realized. The high-pressure electric pulse rock-breaking experimental facility cansimulate the high voltage environment of deep drilling in the earth, electric pulse drilling experiments carried out on high temperature and high pressure deep wells and ultra-deep wells are more close to actual drilling environments, experimental studies on the geometrical shape, distribution, spacing and electrode materials of electrodes of high-voltage electric pulse rock-breaking drill bit inthe deep wells and the ultra-deep wells can be realized, and the high-voltage pulse discharge drilling has broad development prospects.

The invention provides a method and a device for self-recovery current limiting and circuit breaking by using conductive fluid and magnetic fluid, belonging to the electric and automatic control field. The device comprises a main body and an auxiliary body; an encapsulated casing of the main body forms a closed cavity with an outside solid electrode terminal; the cavity is filled with conductive fluid and magnetic fluid hierarchically; when the number of the cavity is more than one, the cavity is internally provided with clapboards which is provided with inside solid electrode terminals; the cavity volume is divided by the clapboards equally, and each cavity is filled with the conductive fluid and the magnetic fluid hierarchically; the auxiliary body comprises a magnetic field generating device and a temperature regulating device; the main body part and the magnetic field generating device are accessed into a controlled circuit; when fault current exists in the controlled circuit, themagnetic field generating device generates large enough gradient magnetic field to rapidly separate the magnetic fluid from the solid electrode terminal so as to realize rapid breaking of circuits. Asthe response time is in a millisecond level, the invention can effectively protect security of electronic equipment and solves the problems such as contact burning, difficult breaking and the like, and the device has the self-recovery function.

The invention relates to a follow-up clamp type climbing fire fighting rescue capsule. The fire fighting rescue capsule is characterized by comprising a capsule body and at least two groups of climbing mechanisms, wherein the two groups of climbing mechanisms are arranged on a guide pillar on one side of the capsule body; each climbing mechanism is correspondingly provided with a clamp device; the upper group of climbing mechanisms and the lower group of climbing mechanisms follow up alternately to drive the capsule body to correspond to an upper floor and a lower floor along a vertical fire wall pier; and the top of the capsule body is also provided with a clamp device. Compared with the prior art, the rescue capsule has the advantages that: 1) the climbing mechanisms drive the capsule body to lift along the external wall of a building; 2) the clamp device can clamp the wall body to hang the capsule body on the external wall of the building; 3) an independent space is formed in the capsule body, so firemen can be quickly carried to the fire disaster floor and trapped people can be carried to quickly get away from the dangerous situation; 4) the rescue capsule is driven by a self-contained hydraulic system and can be lifted to any height by means of a fire fighting vertical wall of the building; and 5) a high-pressure fire hose instead of an aerial ladder truck for rescue on a fire scene can be arranged on the rescue capsule.

The invention discloses an operation device of a direct current circuit breaker and an operation method of the operation device. The operation device comprises a vacuum bubble, a repulsion device andan electromagnetic mechanism connected with the repulsion mechanism through a connection rod. A mechanical contact consisting of a static contact and a moving contact is arranged in the vacuum bubble.The moving contact is connected with the repulsion mechanism through an insulation pull rod. The repulsion mechanism comprises a separating coil, a repulsion disc, a charging / discharging loop and a first controller controlling the charging / discharging loop to trigger the separating coil. The repulsion disc is connected with the connection rod through a moving guidance rod. The separating coil isarranged on the repulsion disc and the gap is not more than 3.5 mm. The electromagnetic mechanism comprises an annular hollow static iron core, a moving iron core, an attracting coil, a keeping coil,a separating reset coil, a contact spring and a second controller.

New coated nonwoven fibrous mats having properties particularly suited for a facer on gypsum wallboard and other substrates and in laminates of various types, and the method of making the coated mat is disclosed. The mat preferably contains a major portion of glass fibers and a minor portion of a resinous binder. The coating is preferably permeable and reduces fiber dust and abrasion experienced in the past with relatively coarse, relatively inexpensive glass fibers in the mat. Contrary to previous coating methods, the coated fibrous mat is made in-line on a wet mat forming production line by applying a wet foam binder onto a wet, fibrous web followed by drying and curing in-line.

The invention provides a synchronous spraying device for a large machine. The synchronous spraying device comprises a plurality of movable bases (1), wherein a six-axis joint robot is installed on each movable base (1), and a spray gun is installed at the tail end of each six-axis joint robot; a steel plate (2) is arranged at the front end of each movable base (1), a piston cylinder (3) is further horizontally arranged at the front end of each movable base (1), the outer end of a piston rod of each piston cylinder (3) is level with the outer side of the corresponding steel plate (2) while retracting, and an electrically-controlled magnetic attraction device (4) is arranged at the rear end of each movable base (1); and the movable bases (1) attract the electrically-controlled magnetic attraction devices (4) through the steel plates (2) and are sequentially connected in series to form an integrated movable platform. According to the synchronous spraying device provided by the invention, the integrated movable platform formed by sequentially connecting the plurality of movable bases (1) in series is provided, and synchronous spraying of all the six-axis joint robots can be realized; and moreover, the problem of interference is avoided, and the consistency of the spraying quality of parts of the large machine can be ensured.

The invention relates to a method for improving anaerobic digestion performance of sludge by utilizing microwave alkaline thermal hydrolysis, and the method belongs to the technical field of solid waste treatment. Alkaline solution is firstly added in the sludge with the solid concentration of 7 percent-10 percent for controlling the pH value of the sludge, the mixing is carried out after adding the alkaline solution, the alkalified sludge is placed in a pressure-bearing reactor, the heating is carried out in a microwave field with the frequency of 2450MHz, the sludge heated by microwave is cooled to the room temperature, and the anaerobic digestion treatment is carried out on the sludge after the cooling. More than 60 percent of organic matters in the sludge which is treated by the method are converted to liquid phase; during anaerobic digestion, the conversion efficiency of the organic matters of the sludge is improved, thereby being an effective means for realizing the whole process pollution control, the energy conservation and the emission reduction of sewage treatment.

The invention provides a monocrystalline silicon wafer texture surface making additive. The monocrystalline silicon wafer texture surface making additive comprises the following components in percentages by mass: 0.1%-3% of a component A, 0.01%-10% of a component B and the balance of water. The component A is selected from one or more of crown ether, crown ether derivatives and alkali metal complex of the crown ether; and the component B is alcohol ether. The invention further provides texture surface making liquid for monocrystalline silicon wafer texture surface making. The texture surface making liquid contains an alkali solution and the monocrystalline silicon wafer texture surface making additive. The invention further provides a monocrystalline silicon wafer texture surface making method. Texture surface making on a monocrystalline silicon wafer is carried out by the texture surface making liquid. The additive is added in the monocrystalline silicon wafer texture surface making liquid, so that texture surface making reaction becomes fast, quick texture surface making on the monocrystalline silicon wafer cut by a diamond wire can be carried out, the capacity is improved, uniform and compact texture surface pyramids can be obtained, the reflectivity is reduced, and the efficiency of a battery is improved.

The invention discloses a method for planting vegetation on the karst area slope, comprising: laying and fixing a wave shape plant-growing net with meshes on the slope surface, wherein the wave shape plant-growing net can be formed by connecting a surface layer net and a wave shape net and also can be formed by connecting the surface layer net, the wave shape net and the bottom layer net; spraying the artificial soil for the shrub slope protection in the karst area on the wave shape plant-growing net by a mechanical or an artificial operation method, and spraying the plant growth substrate mixed with the plant seeds on the top of the artificial soil by a sprayer. The invention lays the wave shape plant-growing net with the meshes on the shrub slope protection in the karst area, therefore, the sprayed artificial soil and seeds during laying the planting substrate can absorb in the wave shape plant-growing net with the meshes. The invention provides an adhesion platform for the artificial soil and seeds to ensure the root system expansion during plant growth, promotes the construction speed and saves the construction cost.

The invention provides nano ceramic metal composite powder for 3D printing and application. A metal material is used as a matrix, and ceramic particles are used as a reinforcing phase. One or more ceramic particles of micron-sized TiC, TiB2, WC, SiC, CrC, Al2O3, Y2O3 and TiO2 are used as raw materials, the mass percent of the added ceramic particles is 0.5-10.0%, through a specific ball milling process, plasma spheroidization, airflow classification and screening, the metal composite powder with high sphericity, good fluidity, narrow particle size range and uniformly distributed nano-ceramicsis obtained, and the high requirement of a 3D printing technology for powder is met; and a nano-ceramic reinforced metal composite material is prepared through the 3D printing technology. According tothe prepared metal composite material, nano ceramic phases are uniformly distributed, and the metal composite material has excellent mechanical properties. Micron-sized ceramic particles are adopted,uniform dispersion is achieved through nanocrystallization, and the cost is low; and parts in any complex shape can be integrally formed and prepared, and the material utilization rate is increased.

A Rotating Pressure Control Head (RPCH) with a rapid engagement mechanism is disclosed. The RPCH comprises an upper body and a lower body. The rapid engagement mechanism allows the upper body to be quickly disengaged from the lower body and replaced with a new upper body. The upper body comprises a sealing element and an inner housing that rotates with respect to an outer housing. The sealing element contains a plurality of internal cavities. The plurality of cavities control the constriction of the sealing element around the drill pipe.

The grasping and lifting aid, according to the present invention, comprises a flexible strap having a first and second end portion. Doubling back and fixedly securing the first end portion to a remainder of the flexible strap, a first loop is formed. The first loop has an opening commensurate with a width of the flexible strap, so that the second end portion can freely pass through. Thus, a second loop adaptable for attaching about a user's wrist is formed. The flexible strap includes a wrist securing portion formed by the second loop, followed by a palm grasping portion having a length adaptable to be spirally wrapped around a weight bar or the like by using several coils in close proximity to each other, without overlapping. The flexible strap also has anti-slip proprieties on a side adaptable for confronting a palm, fingers and thumb of a user. A material for providing anti-slip proprieties is used. Thus, hand-gripping capacity is enhanced and the user is protected from getting painful skin damage on the hand. No material for providing anti-slip proprieties is used for the other side of the flexible strap, which is opposite to the side of the flexible strap that confronts the palm, fingers and thumb. Thus, when a user is overwhelmed by a load and forced to drop it, the other side of the flexible strip, not provided with an anti-slip material, will rapidly disengage from the weight bar and, thereby, provide security for the user.

The invention relates to a waste garbage crushing device for the biomedicine pharmacy, in particular to a quick waste garbage crushing device for the biomedicine pharmacy. The provided quick waste garbage crushing device for the biomedicine pharmacy is thorough in crushing, high in crushing speed and convenient to operate. The provided quick waste garbage crushing device for the biomedicine pharmacy comprises a bottom plate, a left frame, a first slide rail, first slide blocks, a crushing frame, a bracket, a second slide rail, a right frame, second slide blocks, a rack, a gear, a flat belt, a large belt wheel and the like. The left side of the top of the bottom plate is provided with the left frame and the first slide rail. The quick waste garbage crushing device for the biomedicine pharmacy has the effects of being thorough in crushing, high in crushing speed and convenient to operate, and waste garbage produced in the biomedicine pharmacy can be quickly crushed, so that the waste garbage produced in the biomedicine pharmacy is processed appropriately.

The invention discloses a rapid rescuing method for tunnel gateway collapse. The rapid recuing method comprises the following steps: I, installing spiral excavation pipe-jacking pipe curtain construction equipment provided with a spiral excavation function and an oil cylinder jacking function, and capable of simultaneously performing spiral excavation operation and oil cylinder jacking operation at a safety area in an excavated tunnel hole; II, arranging at least one steel tube capable of passing through a person on the bottom of a gateway collapse area in an the excavated tunnel by virtue of the spiral excavation pipe-jacking pipe curtain construction equipment, introducing the steel through into a construction operation area of the excavated tunnel after passing through the gateway collapse area, and forming an escape channel by the steel tube; III, directing the staff in the construction operation area to escape to the safety area from the escape channel. The invention belongs to a novel-use invention of the known product, the spiral excavation pipe-jacking pipe curtain construction equipment is transferred and applied to a tunnel collapse manual rescuing direction from the tunnel forepoling construction direction, so that the complexity of the tunnel collapse rescue is greatly lowered, and the tunnel collapse rescue speed is increased.

The invention relates to a wood block crushing device, in particular to a waste wood block rapid crushing device for construction. The technical effect that the waste wood block rapid crushing device for construction with complete crushing, rapid crushing and convenient operation is provided is achieved. In order to achieve the technical effect, the provided waste wood block rapid crushing device for construction comprises a bottom plate, a first sliding rail, first sliding blocks, a second sliding block, a second sliding rail, a first spring, a fixing plate, a first bevel gear, a motor, a first rotary shaft, a left rack and the like. The left rack, the second sliding rail, the first sliding rail and a right rack are sequentially arranged at the top of the bottom plate from left to right. The fixing plate is arranged on the left side of the second sliding rail. A round head fixed rod is arranged on the upper portion of the right side of the fixing plate. The second sliding block is slidably connected to the second sliding rail. A round head movable rod is arranged on the second sliding block. The effects of complete crushing, rapid crushing and convenient operation are achieved.

The invention relates to a reaction chamber with an external heating mode for a metal organic chemical vapor deposition system. The reaction chamber is of a double-layer structure, wherein the outer layer is a quartz protective chamber outer barrel, and the inner layer is quartz reaction chamber inner barrel; a substrate tray for placing a substrate is arranged in the reaction chamber inner barrel; the double protection ensures that the substrate is not influenced by the external environment in the reaction, and ensures the requirements on high purity and stable chemical and physical properties; the substrate tray of the reaction chamber provided by the invention is supported by a rotation shaft, and is connected with a rotating mechanism of the substrate tray through the rotation shaft; the substrate tray can automatically rotate in operation, thus effectively improving the uniformity of the components and the thickness of the thin membrane. According to the invention, a heating body is arranged outside the reaction chamber, so that the structure of the reaction chamber and the structure of the heating body are greatly simplified, and the equipment cost is lowered; meanwhile, the pollution of the heating component to the reaction chamber is avoided by the externally arranged heating body; a heater can move in the relative position relative to the substrate in the reaction chamber; and the substrate temperature can be simply and rapidly changed during the reaction process or when the movement is finished.

The invention provides an inflammatory microenvironment responsive smart drug-loaded hydrogel and a preparation method and application thereof. The preparation method for the inflammatory microenvironment responsive smart drug-loaded hydrogel comprises the following steps: a functional polymer containing ortho-hydroxyl reacts with phenylboronic acid containing amino or carboxyl to prepare a phenylboronic acid polymer; an amphiphilic drug carrier is prepared; the prepared amphiphilic drug carrier and a hydrophobic drug are dissolved with a good solvent, and then, water is added thereinto understirring to prepare a drug-loaded micellar solution; and the hydrophilic drug and the prepared phenylboronic acid polymer are dissolved in the prepared drug-loaded micellar solution, and then, the pHvalue of a mixed solution is regulated to 8-9 to prepare the smart drug-loaded hydrogel. The hydrogel responsively releases drugs through pH and reactive oxygen, and has the advantages that the preparation components are few and the synthesis operation is simple.