53results about How to "Avoid build-up" patented technology

Methods and compositions for forming a hydraulic fracture are disclosed herein. The methods and compositions make use of novel amphiphobic proppants. The amphiphobic properties of the disclosed proppant compositions provide several advantages over existing solutions. The hydrophobic nature of the proppant enhances recovery of fracture fluid from the fracture as well as prevents liquid build-up with the fracture. Additionally, the lipophobic nature of the proppant may enhance production of hydrocarbons from the fracture.

An electronically-operable door strike employing a guard clip for deterring picking of the locking mechanism therein, a springless solenoid designed to avoid the undesirable build-up of residual magnetism and which incorporates air gaps for dissipating heat, thus prolonging the useful life of the solenoid, and a face plate for mounting the strike into a door jamb.

An endless track assembly that mounts to a wheeled vehicle. The assembly provides 1) a track suspension having fixed or adjustable, independently biased sets of idler wheels to vary the track contour without affecting track tension, 2) an eccentric bearing housing at a drive sprocket controls track tension, 3) a contoured peripheral edge at the drive sprocket prevents ice and mud buildup, 4) rubber-coated, plastic idler wheels facilitate track movement, 5) a multi-vehicle compatible adapter mounting plate accommodates a variety of vehicles, 6) a rotation limited torsion coupler and / or rotation limiting coupler arms prevent track contact with the vehicle, 7) a locking steering arm coupler prevents loss of steering control, and 8) shaped track lugs and channels clear and direct debris away from the track suspension and drive assembly. The improved suspension particularly supports sets of idler wheels in pivotal relation to the track support frame and resiliently biases a pre-tensioned rocker arm that links adjacent suspension arms mounted to the adjoining idler wheels. Suspension arm movement induces expansion and contraction of tension springs coupled to the rocker arms to augments shape changes at the track contact surface to optimize traction and steering control.

A method of fractionating a dispersion of oxidic nanoparticles wherein at least one step of the method is a membrane crossflow filtration step, the flow of the dispersion over the membrane being brought about by means of driven rotating parts; and dispersions of oxidic nanoparticles that are obtainable by the method.

An actuator for a pressurised metered dose inhaler, including: a tubular section (38) providing an outlet through which medicament is in use inhaled; and a nozzle block (42) including a tubular element (44) having a free end over which the valve stem (14) of a canister (2) is in use located and a spray orifice (50) in fluid communication with the tubular element (44) for directing a spray into the tubular section (38).

A cleaning formulation includes a cleaning composition present in an amount sufficient to provide cleaning efficacy. The cleaning formulation further includes a brake dust barrier composition present in an amount sufficient to provide brake dust barrier efficacy. The barrier composition after application to a surface is adapted to substantially prevent build-up and / or adherence of brake dust on the surface.

An improved system and method for the automated refilling of cryogenic helium is provided. In one embodiment, the system includes a dewar in fluid communication with a liquid helium cryostat through a cryogen transfer line. A controller regulates operation of a three-way valve to pre-cool the transfer line and to cause gaseous helium to flow to the dewar and force liquid helium through the transfer line into the cryostat. The controller is coupled to the output of a cryogenic level sensor, such that the controller regulates the helium liquid level within the cryostat. During filling cycles, the dewar liquid level is also monitored by the cryogenic level sensor and an alarm sounds if the dewar liquid level is undesirably low. Between filling cycles, the controller is operable to ventilate the dewar through a solenoid vent valve in fixed time intervals to ensure the dewar pressure is sufficiently low so as to not bleed liquid helium into the cryostat.

A method and apparatus for controlling the operation of a pressurized steam boiler heated by a burner. The method includes the steps of monitoring the level of total dissolved solids in water contained in the boiler, monitoring the level of water in the boiler, monitoring the pressure of steam in the boiler, monitoring the firing rate of the burner; controlling the blow down of the boiler having regard to the level of total dissolved solids in water contained in the boiler, and controlling the flow rate of water into the boiler and the firing rate of the burner. All input signals relating to the monitoring steps are passed to a common control unit and all output signals relating to the controlling steps are transmitted from the common control unit.

The invention discloses a rotary-cut type integrated central feeding machine, and solves the problem of poor dredging effect in the prior art. The rotary-cut type integrated central feeding machine comprises an improved raw coal bin, a scraping device, a material pushing device, a hyperbolical or dried shrimp-shaped central feed hopper, an insert plate door, an intelligent electric cabinet and the like, wherein the hyperbolical or dried shrimp-shaped central feed hopper is connected with the feed opening of the raw coal bin; and the scraping device, the material pushing device and the insert plate door are controlled by the intelligent electric cabinet. The central feeding machine is designed reasonably, simple in structure, and convenient to mount, occupies no effective space of the improved raw coal bin, can be controlled intelligently, is high in practicability, mainly used for solving the problem of coal blockage of the improved raw coal bin of a coal burning power plant, is suitable for conveying raw coal of various qualities and types, and coal slime, and is also suitable for material conveying stock bins in other industries.

A fluoropolymer resin coated member in which the fluoropolymer resin layer has been improved in wear resistance and peeling resistance. When the coated member is used to form a mold for polyester container molding, part of a polyester resin or an oligomer ingredient or additive contained in the polyester resin is prevented from depositing on the mold surface. And a polyester container with excellent luster and transparency can be manufactured. The fluoropolymer resin coated member (1) comprise a foundation (10) and a fluoropolymer resin layer (20) formed thereon, the foundation (10) having a surface roughness of 2 to 10 degree in Root-mean-square slope of profile, the amount of the fluoropolymer resin of the fluoropolymer resin layer (20) being 0.5-8.5 g / m 2 , and the surface roughness of the fluoropolymer resin layer being 5 degree or less in Root-mean-square slope of profile q2. The metal mold for forming polyester resin container can be reproduced in such a manner that amorphous fluoropolymer resin layer 20 applied on the hard surface of foundation 10 of the metal mold for forming polyester resin container is removed by abrasive to obtain mirror finish, then a new amorphous fluoropolymer resin layer 20 is applied on the surface of foundation 10.A fluororesin-coated member in which the fluororesin layer has been improved in wearing resistance and adhesion to the base. When the coated member is used to form a mold for polyester container molding, part of a polyester resin or an oligomer ingredient or additive contained in the polyester resin is prevented from depositing on the mold surface and a polyester container excellent in gloss and transparency can be molded. The fluororesin-coated member (1) comprise a base (10) and a fluororesin layer (20) formed thereon, the base (10) having a surface roughness of 2-10 DEG in terms of mean square slope q1, the amount of the fluororesin deposit constituting the fluororesin layer (20) being 0.5-8.5 g / m<sup.

A juice extractor includes extractor cups relatively moveable within a product material area that compress fruit therebetween. A strainer tube is mounted to receive juice and pulp and discharge juice therefrom. A juice manifold is positioned to collect the juice discharged from the strainer tube when an orifice tube moves therein. The juice manifold has an outlet positioned at a side of the extractor frame removed from the product material area to prevent build-up of peel and related byproducts.

The present invention relates to a catalytic wall-flow monolith for use in an emission treatment system, the monolith comprising a porous substrate and having a first face and a second face defining a longitudinal direction therebetween and first and second pluralities of channels extending in the longitudinal direction,the first plurality of channels provides a first plurality of inner surfaces and is open at the first face and closed at the second face, and the second plurality of channels is open at the second face and closed at the first face,a first catalytic material is distributed within the porous substrate,a microporous membrane is provided in the first plurality of channels on a first portion, extending in the longitudinal direction, of the first plurality of inner surfaces, andthe first portion extends from the first face for 75 to 95% of a length of the first plurality of channels.

The invention discloses a dehumidification drying device for regenerated plastic particles. A barrel is included and horizontally isolated into a drying chamber and a heating chamber through a ventilation plate. The outer end of the drying chamber and the outer end of the heating chamber are provided with a servo motor and an air blower correspondingly. A rotation shaft is horizontally arranged inthe drying chamber and fixedly sleeved with stirring blades at equal intervals. A heating electric wire is arranged in the heating chamber. The end, close to the air blower, of the heating chamber isprovided with an air inlet, and the barrel is provided with a feeding port, a discharging port and an exhaust port. In the integrated structure of the barrel, on one hand, the motion of plastic particles is accelerated, mutual bonding between the plastic particles is avoided, and disengaging of the water body and the plastic particles is accelerated through centrifugal force formed due to the high-speed motion; and on the other hand, wind power is heated through the heating electric wire, the plastic particles are further dried in the drying chamber, water evaporation is accelerated, the dehumidification drying efficiency of the plastic particles can be better improved, and the forming quality of the plastic particles can be better guaranteed.

The invention discloses a method for preparing Pu'er raw tea through 39 procedures in the technical field of preparation methods of Pu'er raw tea, the quality of ancient tree tea is comprehensively screened, fresh leaves which have certain and uniform bud-leaf-stem proportion, complete buds and leaves, no sandwiched leaves or single leaves, basically consistent size and length and no impurities are adopted for picking fresh leaves, the high quality of the raw materials is ensured, then the fresh leaves are placed in a green leaf storage frame, the freshness of the fresh leaves is kept, the thickness of the stacked fresh leaves during spreading and airing is based on the fact that the bottom layers of the fresh leaves do not generate heat, green grass gas is volatilized, conversion of components contained in the fresh leaves is promoted, full-manual fixation is conducted, spreading and airing are conducted slightly after fixation, so that the temperature of the leaves is reduced, then sunlight drying and sunning treatment is conducted, the whole drying area must reach a pollution-free standard, so that the quality of raw tea raw material selection can be guaranteed, the process precision of raw tea preparation can be effectively guaranteed, the quality of raw tea preparation is improved, the yield of raw tea is effectively improved, and the quality of the Pu'er raw tea can be improved.

A bag filter filtration and dust collecting apparatus according to the present invention is a bag filter filtration and dust collecting apparatus using a bag filter for collecting dust and the like from supplied polluted air and then discharging the dust and the like to the outside, and the bag filter filtration and dust collecting apparatus comprises: an upper case in which a plurality of bag filters for filtering dust are installed in the vertical direction; a lower case, formed at a lower end of the upper case, which collects dust that falls from the bag filter; and at least two mutually parallel air supply pipes, passing through the lower case, which supply polluted air into the bag filter filtration and dust collecting apparatus, wherein the air supply pipe is provided with a side discharge hole formed on the side thereof whereby the air spray is directed toward the inner side wall of the upper case or the lower case, and accordingly, a central space between the at least two air supply pipes forms a region in which dust can fall.

The invention discloses a warp knitting workshop hairness collecting device. The warp knitting workshop hairness collecting device comprises a vehicle, a servo motor, a fine and closely woven iron wire mesh and a draft fan and is characterized in that the servo motor is fixed to the vehicle, the lateral side of a movable plate is connected with an inner gear, the inner gear is mounted inside the vehicle, a shifting plate is fixed to the inner gear, a triggering plate is fixed to the movable plate, the lateral side of the triggering plate fits a protruding block, the protruding block is fixed inside a front plate, the front plate is mounted at the bottom end of the vehicle, a second reset spring is mounted on the lateral side of the front plate, the second reset spring is connected with thevehicle, a brush cylinder is mounted on the outer side of the vehicle, and the fine and closely woven iron wire mesh and the draft fan are fixed to the inner side of the vehicle. The warp knitting workshop hairness collecting device has the advantages that by adopting the novel structural design, the device can gather and collect broken hairness deposited on the ground, sweeping efficiency is increased and a good cleaning effect is achieved as compared with traditional manual sweeping, and a large amount of hairness can be cleaned in one step.

The invention provides a rotary color master batch cooling device which comprises a cooling box, a cone-shaped feed inlet formed in one side of the upper part of the cooling box, a discharge port formed above the cone-shaped feed inlet, a conveying device arranged on the upper part of the inner side of the cooling box below the cone-shaped feed inlet, an exhaust structure arranged in the cooling box, a cooling device connected to the exhaust structure, a purging device arranged at the bottom of the cooling box and a plurality of discharge ports. By arranging a spiral air hose at the cone-shaped feed inlet, color master batch is cooled preliminarily conveniently. A coil pipe is arranged between the side walls of an outer box body and an inner box body, so that a low-temperature environmentin the box body is guaranteed. The conveying device is arranged in the box body, so that the time of the color master batch in the box body is prolonged, and meanwhile, a second exhaust plate is arranged between an upper conveyor belt and a lower conveyor belt, so that the cooling effect of the color master batch is improved greatly. A first exhaust plate is arranged between the outer box body andthe inner box body, so that the cooling effect of the color master batch is further improved. The purging device is arranged at the bottom of the box body, so that the sticky color master batch is separated conveniently.

The invention discloses a noise reduction type headphone with an anti-slip function, and particularly relates to the technical field of headphones, the noise reduction type headphone comprises a body,two ear sleeving bins are fixedly connected to the inner wall of the lower part of the body, and an anti-slip assembly and a disassembly and replacement assembly are respectively installed inside andoutside the two ear sleeving bins. Through the arrangement of the anti-slip assembly, the cavities formed between the earmuffs and the ears can be locked through the fan-shaped plates, the headphoneis prevented from falling off from the head of a user in an inclined mode, the structure is simple, use is convenient, the use comfort of the user is improved, the headphone is prevented from being beaten, and the service life of the headphone is prolonged; and through arrangement of the dismounting and replacing assembly, sleeving linkage of the belt wheel, the pressing piece and the transmissionbelt is achieved, the clamping block can be controlled to lock and loosen the positioning ring, and therefore mounting and dismounting of the filter screen are controlled, the filter screen is easy to dismount and clean, dust and impurities are prevented from being attached and accumulated, the cleanliness of the filter screen is guaranteed, the output sound effect of the headphone is good, and meanwhile, ear health is protected.

The invention relates to the technical field of headphones, and discloses a headphone with an active noise reduction function, which comprises a headphone main body, wherein elastic bulges are arranged on the outer wall, in contact with the head of a human body, of the headphone main body when the headphone main body is worn, earmuffs are respectively arranged at two ends of the headphone main body, a control part is arranged on the outer wall of one side of the headphone main body, each earmuff comprises a bottom plate, a protective shell and an inflatable airbag which are connected in sequence, an air pump is arranged in the control part, an inflation inlet is formed in the surface of each inflatable airbag, an inflation tube is arranged between the air pump and each inflation inlet, a deflation opening is formed in the surface of each inflatable airbag, a deflation valve is fixedly installed on each deflation opening, and a microcontroller is arranged on the outer wall of the other side of the headphone main body. According to the headphone with the active noise reduction function, the inflatable airbags and the detachable and replaceable assemblies are arranged, so that the headphone is comfortable to wear and convenient to disassemble and clean, and the problem that dust and sundries are attached and accumulated to affect ear health can be effectively solved.

The invention discloses a carbon powder extrusion spraying device with an anti-blocking mechanism. The carbon powder extrusion spraying device with the anti-blocking mechanism comprises a feeding mechanism, a driving mechanism and a spraying tank. The carbon powder extrusion spraying device with the anti-blocking mechanism has the beneficial effects that a spraying pushing piece can be driven to move downwards, compressed air is generated in a compression pipe under the pushing effect of the spraying pushing piece, and meanwhile a second sleeve drives a telescopic rod to move downwards, an intermittent quantity control piece is driven to move downwards, so that an opening and closing conical head is separated from a sealing ring, the carbon powder falls downwards under the action of gravity of the carbon powder and the pushing and compressing effect of a feeding conveying piece, then the carbon powder is guided and separated in an umbrella shape by a powder storage disc firstly under the blowing action of compressed air guided by the compression pipe and then is sprayed out in a limited manner from a nozzle, and in this way, the sprayed carbon powder is uniform. Moreover, one air cylinder achieves intermittent extrusion outward spraying of the carbon powder, so that the carbon powder extruding spraying device with the anti-blocking mechanism is particularly suitable for intermittent powder spraying during factory batch production or manufacturing; and the carbon powder utilization rate is high, and resources are saved.

The invention discloses an oil-saving gasoline additive which is prepared from the following raw materials in parts by weight: 40-60 parts of dimethylbenzene, 20-30 parts of methanol, 10-15 parts of n-octyl alcohol, 10-15 parts of isopropanol, 10-15 parts of dichloroethane, 10-15 parts of dimethicone, 10-20 parts of combustion improver, 5-10 parts of antioxidant and 4-9 parts of detergent. According to the oil-saving gasoline additive, the antioxidant can improve oxidation resistance and corrosion resistance of gasoline; the detergent can improve cleanliness and low-temperature fluidity of fuel, and reduce emission of sediments and greenhouse gas in the gasoline and environmental pollution; the combustion improver is added into dimethylbenzene, methanol, n-octyl alcohol, isopropanol, dichloroethane and dimethicone, so that the combustion efficiency of the gasoline can be improved; the gasoline consumption is reduced; the situation of deposits in a combustion chamber is avoided; and theemission of pollutants is reduced.

The invention discloses an automatic cleaning robot for the inner wall of a pipeline. The automatic cleaning robot comprises an engine body, wherein two annular sealing cavities are symmetrically formed in the engine body; an annular storage battery is arranged in each annular sealing cavity; an annular controller is arranged in one of the two annular sealing cavities; and a water flow sensor is arranged on the outer side wall of the engine body and is electrically connected to the annular controller. According to the automatic cleaning robot, water flow kinetic energy is converted to mechanical energy through a water flow fan blade, and the mechanical energy is converted to electric energy for storage through a heteronymous magnetic sheet and a ring winding; the automatic cleaning of thepipeline can be realized in a water flow static or flowing state by using the electromagnetic induction principle; and the back and forth movable cleaning is realized in the static or flowing change process.

The invention relates to the technical field of sauce marinated beef offal seasoning blending, in particular to a sauce marinated beef offal seasoning blending device and a blending method thereof. The sauce marinated beef offal seasoning blending device comprises a main body mechanism, a fixing mechanism is connected to the main body mechanism in a matched mode, a rotating mechanism is connected into the main body mechanism, and a stirring mechanism is slidably arranged on the rotating mechanism in a matched mode; and a mixing mechanism is mounted on the stirring mechanism, and the main body mechanism communicates with a storage mechanism. When the blending device is used, part of seasonings required by the sauce marinated beef offal are sequentially put into the main body mechanism, and then a control switch of the rotating mechanism is turned on, so that the rotating mechanism drives the stirring mechanism and the mixing mechanism to rotate in the main body mechanism, the seasonings are fully stirred and mixed, and the use effect of the blending device is improved; and the treated seasoning is discharged into the storage mechanism from the interior of the main body mechanism, so that the treated seasoning is conveniently stored and stored, and meanwhile, the situation that the seasoning is affected with damp due to contact with external air is also prevented.

The invention relates to the technical field of mine construction, in particular to a processing method of an upper corner hanging arch on a mine working face. The processing method of the upper corner hanging arch on the mine working face comprises the steps that before advanced bearing pressure disturbance formed by working face stoping, two rows of drill holes are correspondingly formed in thepositions, on top plates of stoping roadways, on the two sides of the working face in advance; and high-pressure water is correspondingly injected into each drill hole to perform hydraulic fracturingon top covers, so that cracks are generated and extended on the top covers. According to the processing method of the upper corner hanging arch on the mine working face, the integrity of the top covers above a working face end head coal seam can be damaged, the strength of the top covers is reduced, the purpose of before-mining stability and post-mining timely falling of the upper corner hanging arch of a high gas mine working face is achieved, the upper corner hanging arch area of the stoping working face is obviously reduced, gas accumulation and overrun of the upper corner hanging arch of the working face is effectively prevented, and the safety is high.

When filling a vehicle with fuel, a person must touch and hold the dispenser nozzle by the handle 11, squeezing the trigger lever 13. This handle 11 is contaminated by fuel vapour, residue, bacteria, dirt and contaminants by previous usage of multiple persons touching and holding the handle 11 with contaminated hands. The present invention relates to a protective material dispenser 101 with protective material 103 therein, which is releasably couplable to such a fuel gun 2. In this way, a user may easily retrieve some of the protective material 103 from the dispenser 101 prior to touching the fuel pump hand grip 11, and then cover the hand grip 11 to protect his / her hands from making direct contact therewith.

The invention discloses a catalytic ozonation wastewater treatment device with high treatment efficiency. The catalytic ozonation wastewater treatment device comprises a tower body, wherein a controller is arranged at the periphery of the tower body; a base is fixedly mounted on the bottom surface of the tower body through a bracket; a water outlet pipe is fixedly mounted on one side of the towerbody bottom surface; a gas inlet pipe is fixedly mounted on the other side of the bottom surface of the tower body; an exhaust pipe is fixedly installed on one side of the upper portion of the periphery of the tower body; a water inlet pipe is fixedly installed on the other side of the periphery of the tower body; a lower strip-shaped plate is fixedly installed on the lower portion of the inner wall of the tower body; sliding grooves are formed in the two sides of the inner wall of the tower body respectively; annular supports are movably installed in the tower body; and sliding blocks are fixedly installed on the two sides of the supports respectively and can move up and down along corresponding sliding grooves. Through mutual cooperation of a screw, an upper clamping block, a lower clamping block, a rectangular block, the annular support, a baffle, a discharging pipe and other structures, automatic adding of a catalyst can be achieved, it is not needed to manually add the catalyst after sewage discharging is conducted on the tower body, adding of the catalyst can be completed without opening the tower body by a user, operation is easy, and use is convenient.

The invention relates to a pre-grinding and feeding device. The device comprises a pre-grinding device. The pre-grinding device comprises a box. A plurality of cutting rollers are arranged in parallel in the box and are respectively connected to drive motors. The middle of the box is provided with two material blanking ports arranged along a direction perpendicular to the cutting rollers. The bottom of the pre-grinding device is provided with a material conveying device. The material conveying device comprises a horizontal spiral conveyer and a material conveying pipeline. The material conveying pipeline is connected to the material blanking ports of the pre-grinding device through two vertical blanking pipes. Air blowers are arranged in a tandem manner in the material conveying pipeline. The outlet of the material conveying pipeline is connected to the input end of the horizontal spiral conveyer. The output end of the horizontal spiral conveyer is connected to the input end of a pressure spiral conveyer inclined downward. The output end of the pressure spiral conveyer is connected to the input end of a feeding spiral conveyer inclined upward. The output end of the feeding spiral conveyer is connected to a reactor.

The invention relates to a method for manufacturing a high-quality opaque quartz glass ingot, belonging to the technical field of quartz glass manufacturing. In the present invention, the liquid organosilicon material is vaporized through an evaporator, and the organic silicon connecting pipe is connected to a feeding pipe equipped with quartz sand particles with a silicon dioxide content of more than 99.95% as a raw material, and the rear end of the organosilicon connecting pipe is equipped with Electric heating and heat preservation device to prevent low-temperature condensation of small-molecule organic silicon gas; the invention uses hydrogen gas to drive the raw material of quartz sand, uses a gas mass flowmeter to control the amount of small-molecule organic silicon added, and finally melts it through a hydrogen-oxygen flame Melted to obtain an opaque quartz glass ingot. The invention adopts the feeding method of hydrogen gas loading, which can effectively avoid the accumulation of raw materials at the mouth of the hydrogen-oxygen burner lamp head and the gas outlet of the wick; Adjust the ratio of small molecule silicone and quartz glass raw materials to increase the controllability of the production process and product development.