67results about How to "Affect liquidity" patented technology

The invention relates to a nano dolomite-containing corundum spinel castable and a preparation method thereof. On the basis of a corundum spinel castable which is commonly used at present, nano dolomite powder is added, spinel and calcium hexa-aluminate serving as seed crystals are introduced, and a high-efficiency dispersing agent and an appropriate mixing process are adopted, so that the nano dolomite-containing corundum spinel castable is prepared. The adverse effect of hydration of magnesia on the construction performance of the castable when spinel is generated in situ by adding the magnesia is avoided, and the slag resistance and thermal shock resistance of the corundum spinel castable which is used at present are improved; and the prepared nano dolomite-containing corundum spinel castable can be widely applied to the field of high-temperature industry such as steel industry, nonferrous metal industry, ceramic industry and petrochemical industry, and also can be applied to a fireproof material product formed by casting, forming and sintering a permeable brick and the like.

The invention discloses an extinction type thermoplastic elastomer for preparation of a wire and a cable. The extinction type thermoplastic elastomer is characterized by being preparing from the following raw material components by weight percent: 20-60% of styrene elastomer, 20-50% of mineral oil, 0-40% of reinforcing agent, 5-40% of extinction modification material, 0.1-1% of antioxidant, 0.1-1% of processing aid and 5-20% of mineral filling material, wherein the reinforcing agent is at least one of allyl resin and styryl resin, and the extinction modification material is dynamically-vulcanized thermoplastic elastomer or crosslinkable resin/crosslinking agent composition. The extinction type thermoplastic elastomer has the advantages that the crosslinkable resin/crosslinking agent composition or thermoplastic vulcanized rubber is adopted in a basic material, thus the matt effect is good, and the mechanical property and flowability of the material are not influenced.

The invention provides an electric cooking appliance, which comprises an electric appliance main body in which a cooking cavity is formed; and an odor removal device arranged in the electric appliancemain body, provided with an airflow channel for communicating the cooking cavity with the external environment, and used for removing odor from the cooking cavity through the airflow channel. The odor removal device is provided with the airflow channel for communicating the cooking cavity with the external environment, so that after cooking is finished, water vapor in the cooking cavity, the taste of food, oil fume and the like can be exhausted to the external environment, effective odor removing effect is achieved, various smells such as water vapor, oil fume and the taste of food are prevented from being accumulated in the cooking cavity, the body health of a user is further facilitated, and the cleanliness and the cooking effect of the electric cooking appliance are also improved. Besides, compared with a scheme of arranging an internal circulation channel in the electric appliance main body for odor removal, the scheme is beneficial to improving the odor removal speed, reducing the waiting time of a user, simplifying the product structure and reducing the product size.

The invention discloses a method for preparing a high-fluidity carbon black master batch by in-situ degradation of polypropylene with peroxide. The prepared high-fluidity color master batch still hasa high melt flow rate when the mass content of carbon black in the high-fluidity color master batch reaches up to 50-60%, and is easy to disperse in a low-viscosity polypropylene melt. The productionrequirements of special products such as polypropylene melt-blown cloth and fibers are particularly met. The method comprises the following steps: uniformly mixing polypropylene resin and organic peroxide in formula raw materials in a high-speed mixer; continuously and directly putting the mixture of polypropylene resin, organic peroxide and high-structure-degree carbon black into a double-rotor continuous mixing mill for blending; selecting a single-screw extruder with a high length-diameter ratio, and adding a high-fluidity PP/carbon black mixture and an antioxidant into a hopper of a single-screw extruder; adding a mixed solution of liquid paraffin oil and liquid ethylene propylene rubber into the middle section of the single-screw extruder, and further uniformly mixing; and finally, granulating to obtain the high-fluidity carbon black master batch.

The invention provides a novel space reactor pressure vessel structure. The novel space reactor pressure vessel structure comprises an outer pressure vessel, an inner pressure vessel, an upper sealingpressure vessel, a lower reactor core chamber and support plates; and each of the outer pressure vessel and the inner pressure vessel is a hemispherical and cylindrical shell structure, the inner pressure vessel is arranged in the outer pressure vessel, an annular descending channel is formed between the inner pressure vessel and the outer pressure vessel, an upper support plate and a lower support plate are arranged at the upper end and the lower end of the cylindrical section of the inner pressure vessel respectively, the upper sealing vessel is arranged in the hemispherical structure of the inner pressure vessel and is connected with the upper supporting plate, and a space for accommodating a radiation shielding materials is formed between the inner pressure vessel and the upper sealing vessel. The space between the upper sealing pressure vessel and the inner pressure vessel is filled with the radiation shielding material to achieve a certain buffering effect, and a plurality of buffering connectors are arranged between the upper sealing pressure vessel and the inner pressure vessel to enhance the structural stability and the pressure bearing capacity, so the overall structurehas the advantages of simple design, low price, and easiness in machining.

The invention discloses a glue feeding device with a stirring function for LED lamp production and belongs to the technical field of LED lamps. The glue feeding device comprises a storage tank, a pressure gage is arranged at one end of the upper surface of the storage tank, a glue feeding pipe is arranged on one side of the pressure gage, an air pump is arranged at the other end of the upper surface of the storage tank, a first connecting pipe is arranged at the connection of the storage tank and the air pump, a main glue supply pipeline is arranged at the bottom end of the storage tank, a branched pipeline is arranged on the lower surface of the main glue supply pipeline, a first valve is arranged at the end, far away from the main glue supply pipeline, of the branched pipeline, and supporting legs are arranged on two sides of the storage tank. A stirring mechanism is arranged on the glue feeding device, so that a user can stir glue in the storage tank through a stirring rod, a spoiler and spiral blades on the stirring mechanism, so that the condition that a precipitate is generated as glue is stored for a long time is avoided, glue in different height layers is consistent in quality, and therefore, the production quality of the glue feeding device is guaranteed.

The invention discloses a screening method of 3D printing powder, and the method comprises the steps of screening powder prepared by gas atomization by using an air classifier, and removing ultrafinepowder with the granularity of -15 [mu]m to obtain powder with the granularity of 15-250 [mu]m; carrying out ultrasonic screening on the powder with the granularity of 15-250 [mu]m by using a glove box to obtain printing powder with the granularity of 15-45 [mu]m; and packaging the printing powder with the granularity of 15-45 [mu]m. According to the invention, ultrafine powder and large-particle-size powder in the powder are removed in sequence by continuously screening the powder prepared by gas atomization; and the quantity of the ultrafine powder is effectively reduced by controlling the rotating speed and the air input of the wind wheel of the air classifier, the ultrasonic frequency and the screening time of an ultrasonic vibration screening machine, the humidity and the oxygen increasing amount of the printed powder are effectively reduced by controlling the parameters such as the water content and the oxygen content of the glove box, and the gas-filled packaging prevents the vacuum packaging from causing powder agglomeration and adhesion to influence the flowability of the powder..

The invention discloses a clove essential oil contained sterilization plastic wrap and a preparation method thereof. The advantages lie in that corn starch is taken as a carrier to adsorb clove essential oil, beta-cyclodextrin is used for wrapping, dispersity and charge capacity of the clove essential oil can be increased, fusion of the clove essential oil in a wrap base is promoted, waterproofness of the material is improved, sterilization life of the clove essential oil is prolonged, and slow-release effect is achieved; on the other hand, degradation velocity of the material is increased by the adoption of the corn starch, environment friendliness is achieved, and sustainable development is facilitated.

The invention provides a groove connected PE wound corrugated pipe. The groove connected PE wound corrugated pipe comprises a plastic forming strip, connecting grooves, an adhesive glue injecting face, an annular locking plunger and a corrugated pipe. Two connecting grooves are separately formed in the end surfaces of left and right sides of the plastic forming strip and the corrugated pipe is mounted out of the plastic forming strip in a sleeving mode, and two ends of the plastic forming strip are of hollow structures; the adhesive glue injecting face is located on the inner wall of the corrugated pipe and is connected to the annular locking plunger, and the annular locking plunger is located in the corrugated pipe. The inner wall of the wound corrugated pipe is supported favorably, the internal anti-pressure ability of the wound corrugated pipe is enhanced, and the condition that circulation in the corrugated pipe is affected as the wound corrugated pipe is flattened and deformed because the corrugated pipe is extruded by an external force is avoided. By using the connecting grooves and the annular locking plunger, the plastic forming strip mounted in the wound corrugated pipe can be connected together to improve the tensile coefficient and the anti-break coefficient of the wound corrugated pipe, so that the wound corrugated pipe is steadier and more reliable.

The invention relates to a magnesium oxide stirring device, which comprises a bottom plate, a stirring tank and a stirring mechanism distributed above the stirring tank, wherein a lifting mechanism for driving the stirring mechanism to lift is arranged on the bottom plate, the stirring tank is matched with a first bracket mounted on the bottom plate in a sliding manner, a unloading mechanism for driving the stirring tank to turn over so as to unload is installed on the first bracket, a cleaning device for cleaning the unloading residue in the stirring tank is arranged on the bottom plate, anda driving mechanism for driving the first bracket to move to the cleaning device in the length direction of the bottom plate is arranged on the bottom plate. According to the invention, the sun gear is matched with the planetary gears, so that the rotating shaft rotates around the axis of the sun gear so as to completely stir magnesium oxide; the swing rod is driven by the second hydraulic cylinder to swing, so that the stirring tank is driven to rotate so as to achieve the automatic unloading of the stirring tank; and the residue remained in the stirring tank is cleaned through the cleaning device, so that the fluidity of magnesium oxide during stirring is prevented from being influenced by excessive accumulation of the residue.

The invention provides a metal dust collecting and self-cleaning device for machining, and relates to the technical field of machining. The problems that when a traditional metal dust collecting device for machining is used, a filter screen is usually adopted to intercept and filter metal dust sucked into a device pipeline, the metal dust easily blocks part of a screen opening of the filter screen, and air circulation in the device is affected are solved. and the device comprises a purification box, a communicating pipe and an exhaust fan. A supporting frame is divided into three layers, a water storage tank is installed on the bottom layer of the supporting frame, and a filling pipe opening is formed in the top of the water storage tank. The bottom of a return pipe is connected to the outer side of the water storage tank, and the top of the return pipe is connected with a water inlet valve; and a filter box is mounted in the middle layer of the supporting frame. Metal dust contained in air is purified through water flow stored in the purification box, so that the metal dust carried in bubbles is blended into the water flow in the purification box, the content of the metal dust ina machining place is reduced, and the safety of the machining place is guaranteed.

The invention discloses a building construction paint blending device with a good mixing effect. The invention belongs to the technical field of building construction. The device comprises a storage box, a discharge pipe is arranged at the bottom end of the storage box, supporting legs are arranged at the two ends of the lower surface of the storage box, a stirring mechanism is arranged below thestorage box, the stirring mechanism comprises a supporting bottom plate, a driving motor is arranged in the middle of the upper surface of the supporting bottom plate, a second transmission shaft is arranged at the output end of the driving motor, a stirring rod is arranged at the top end of the second transmission shaft, spiral blades are arranged at the bottom end of the second transmission shaft, piston cylinders are arranged on the two sides of the second transmission shaft, piston rods are slidably connected into the piston cylinders, and mixing pipes corresponding to the storage boxes are arranged at the bottom ends of the piston cylinders. The device is simple in structure and convenient to use, has a good mixing function and can be used for quickly mixing paint, so that the time consumed when a user mixes the paint is effectively shortened.

The invention discloses a creep fatigue test system. The system comprises a gas supply mechanism, a sodium supply mechanism, a sodium storage mechanism and a creep fatigue testing machine. The sodiumstorage mechanism has a gas inlet, a sodium inlet and a sodium outlet which are connected to an internal portion, the gas supply mechanism has a gas outlet, the sodium supply mechanism has a sodium outlet, and the gas outlet of the gas supply mechanism is connected with the gas inlet of the sodium storage mechanism. The sodium outlet of the sodium supply mechanism is connected with the sodium inlet of the sodium storage mechanism, and a first valve is arranged at a connection portion. The creep fatigue testing machine has the sodium inlet, the sodium outlet of the sodium storage mechanism is connected to the sodium inlet of the creep fatigue testing machine, and a second valve is arranged at the connection portion of the two. A workpiece is fixed in the creep fatigue testing machine, and the gas supply mechanism is used to vacuumize the sodium storage mechanism and the creep fatigue testing machine and supply an inert gas into the sodium storage mechanism and the creep fatigue testingmachine. The structure is simple and usage is convenient.

The invention discloses a spray nozzle for spraying an amorphous alloy ribbon. The spray nozzle is arranged at the lower end of a spray bag and comprises a basal body, wherein an inner cavity of the basal body is arranged into a V shape; a spray seam of which the width is smaller than 0.3mm is arranged at the center of the V-shaped inner cavity; two air ways are symmetrically arranged at two sides of the V-shaped inner cavity on the basal body; and binding posts are separately arranged at two sides of the basal body and are connected with a positive electrode and a negative electrode of a transformer through leads. The spray nozzle has the advantages of simple structure, high temperature resistance, oxidation resistance, low possibility of blockage and capability of guaranteeing the quality of the ribbon.

The invention discloses an epidemic prevention centralized water seal floor drain, and belongs to the field of drainage devices. The floor drain comprises a drainage pipe fitting and a water seal coreembedded in the drainage pipe fitting; the drainage pipe fitting comprises a water inlet pipe body and a water drainage pipe body connected with the water inlet pipe body, and a reserved pipe fittingcommunicated with the water inlet pipe body is arranged on the water inlet pipe body; and the mounting height of the water inlet of the reserved pipe fitting is higher than the mounting height of thewater outlet of the water inlet pipe body. According to the epidemic prevention centralized water seal floor drain, the water seal core is designed in an inserted mode and is a water seal shared by aplurality of pipelines, the water seal core is suitable for a 200-400 mm falling plate type floor slab, and in the using process, bathing, washbasins and other waste discharging pipelines share one water seal cavity, so that the water seal damage rate is reduced; and each waste water branch pipe is connected with the water inlet pipe body, and all waste water of the reserved pipe body is gatheredat the water seal core, so that when any water appliance discharges the waste water, the water seal at the water seal core can be supplemented and is not easy to dry up, and the odor return phenomenon is not easy to occur indoors.

The invention relates to the field of building materials, and particularly discloses an interface agent and a preparation method thereof. The interface agent is prepared from the following raw materials in parts by weight: polyvinyl acetate emulsion, a polyvinyl alcohol solution, deionized water, an antifoaming agent, diatomite, chitosan, carboxymethyl cellulose, lactic acid, acetic acid and vinylacetate-acrylic emulsion. The method has the advantage that the coagulation time of the mixed interface agent is prolonged at a high temperature; the preparation method comprises the following steps:weighing raw materials, dissolving chitosan in acetic acid, adding carboxymethyl cellulose, lactic acid and part of deionized water, and performing mixing and stirring to obtain a mixed solution; soaking the diatomite in part of deionized water, performing ultrasonic dispersion, and injecting the premixed solution to obtain a mixed solution; and stirring the mixed solution, a polyvinyl acetate emulsion, a polyvinyl alcohol solution, the remaining deionized water, a defoaming agent and a vinyl acetate-acrylic emulsion to obtain a finished product.

The invention discloses a ventilation pipeline capable of preventing particles from entering the interior to precipitate and accumulate. The ventilation pipeline comprises an air inlet pipe, a flange is arranged at the lower end of the air inlet pipe, a connecting pipe is arranged at the lower end of the flange, a machine box is fixedly connected to the upper end of the left side of the air inlet pipe, a rotating motor is arranged at the upper end of an inner cavity of the machine box, the output end of the rotating motor is fixedly connected with a power rod, the lower end of the power rod penetrates through the air inlet pipe and is provided with a driving gear in a sleeved mode, and a transmission rod is arranged below the driving gear. According to the ventilation pipeline, through the arrangement of a filter screen, filtering can be carried out on circulating air, so that the phenomenon that dust enters a bent part to cause accumulation and blockage is avoided; and through the arrangement of the machine box, the rotating motor, the power rod, the driving gear, a cleaning brush, a dust discharging opening, a driven gear and the transmission rod, and cleaning can be automatically carried out on the surface of the filter screen, so that dust is prevented from being gathered on the surface of the filter screen to influence air circulation, and cleanness and circulation of the interior of the air inlet pipe are effectively kept.

An efficient filtration device used for a chemical emulsifier is disclosed. The device includes a filtration rack the upper middle part of which is fixed to a conveying pipeline; and a stream stabilizing box, wherein the lower side at one end of the stream stabilizing box is connected to the bottom end of the conveying pipeline. The stream stabilizing box includes an upper material supplying cylinder and a lower material supplying cylinder which are distributed at the longitudinal direction. The middle part at one side of the stream stabilizing box is provided with a flywheel. A heating coil is used for heating and thermal insulation so as to protect fluidity from being influenced by condensation of the chemical emulsifier at a low temperature. The stream stabilizing box is used for conveying the chemical emulsifier in a stable, constant-speed, constant-pressure and constant-flow manner. The chemical emulsifier is fed into a filtration rotary cylinder through spinning flow deflectors,and is made rotating and centrifuged under geometrical guidance functions of the spinning flow deflectors. A filtration screen assembly can be dismounted and replaced. The filtration efficiency of a filtration plate is increased under vibration functions of springs. An impurity removing scraping plate collects impurities on an impurity removing disc and discharges the impurities.

The invention belongs to the technical field of concrete, and particularly relates to recycled concrete with high slump retaining performance and a preparation method of the recycled concrete. The recycled concrete comprises the following components in parts by weight: 400 to 500 parts of cement, 450 to 650 parts of sand, 650 to 800 parts of a natural aggregate, 200 to 300 parts of a recycled aggregate, 80 to 150 parts of fly ash, 50 to 100 parts of mineral powder, 150 to 250 parts of water and 2 to 6 parts of a slump-retaining polycarboxylate superplasticizer. According to the recycled concrete with the high slump retaining performance, natural aggregate and recycled aggregate are compounded, a proper amount of recycled aggregate is added, on the premise that the performance of the concrete is guaranteed, the problem of recycling of building waste is solved to a certain degree, in addition, slump loss of the concrete is reduced by adding the slump retaining type polycarboxylate superplasticizer, and the workability of the concrete is improved.

The invention provides a dust removal device for traditional Chinese medicine crushing equipment. The dust removal device is characterized by comprising a traditional Chinese medicine crushing chamber, an air inlet pipeline, a fan, a gas flow control valve, a gas washing device and a water pump, the right side of the traditional Chinese medicine crushing chamber is connected with the air inlet pipeline, the air inlet pipeline is connected with the fan, and the gas flow control valve is mounted at the bottom of the air inlet pipeline; and the gas washing device is connected below the gas flow control valve and consists of a gas washing barrel, a gas spraying pipe, an exhaust pipe and an atomizing water spraying head, the top of the gas spraying pipe is connected with the gas flow control valve, the gas spraying pipe is connected with the top of the gas washing barrel, and the atomizing water spraying head is arranged on the inclined surface of the top of the gas washing barrel. Gas with dust passes through water in the gas washing barrel, the dust can be dissolved in the water, water mist sprayed by the atomization water spraying head drives the water to settle to the water surface, most of the dust can be effectively removed, and the discharged gas after treatment is clean. A device for blocking air movement is not arranged in the dust removal device, so that blockage is avoided, and the efficiency is improved.

The invention provides ecological restoration equipment based on a water environment, and relates to the technical field of ecological restoration, the interior of a filtering and purifying cavity ishollow, a cavity opening is formed in the top of the filtering and purifying cavity, and a water outlet is formed in the bottom of the filtering and purifying cavity; a planting floating block is of ahexagonal structure and is connected to the top of the filtering and purifying cavity; a limiting floating block is connected with the planting floating block and an outer ring, and a balancing weight is connected with the limiting floating block through a fixing chain; four waterproof motors are provided, and the four waterproof motors are mounted in the filtering and purifying cavity in a surrounding manner; the photovoltaic power generation cover is mounted at the top of the filtering and purifying cavity; the waterproof motor drives the propeller to rotate, water flow is conveyed into thefiltering and purifying cavity, the water flow circulating in the filtering and purifying cavity is filtered through a filter screen at the bottom of a filter basket, small-particle garbage containedin the water flow is intercepted in the filter basket, the content of the small-particle garbage in the water body is reduced, and then the quality of the water body is improved.