130results about How to "Effective destruction" patented technology

The invention provides a geological exploration sampling method and sampling equipment based on vibration drilling and obstacle recognition, and belongs to the technical field of geological exploration. The geological exploration sampling method comprises the following steps: 1, starting drilling; 2, switching a vibration mode; 3, obstacle recognition; 4, grouting assistance; and 5, recovering drilling and completing sampling. According to the geological exploration sampling method, the adaptability to complex stratums can be improved by switching the rotary drilling mode and the vibration drilling mode, a multi-sensor module is adopted in the obstacle recognition step, and pressure, sound waves and vibration signals are collected in real time, so that the obstacle type is accurately judged, and a basis is provided for subsequent drilling mode adjustment. In the grouting assisting step, grouting equipment is adopted to inject grout into an obstacle area from grouting micropores in the front end of a drill bit through a grouting channel so as to effectively weaken an obstacle structure. By means of the method, efficient drilling and sampling operation under the complex stratum condition can be achieved, the drilling tool jamming risk is reduced, adaptability is high, and efficiency is high.

The invention discloses a preparation method of a piezoelectric self-sterilization cotton fabric-based pressure sensor. The preparation method specifically comprises the following steps: step 1, preparing a modified boron nitride nanosheet; step 2, preparing a modified boron nitride nanosheet / Ag-MOF545 composite material; step 3, preparing a modified boron nitride nanosheet / Ag-MOF545 cotton fabric based piezoelectric material; and 4, preparing the self-sterilization cotton fabric based piezoelectric pressure sensor. According to the piezoelectric self-sterilization cotton fabric-based pressure sensor, on the basis of a piezoelectric polarization effect generated by a piezoelectric material, a stimulation signal of external strain is converted into a piezoelectric current signal to be output, and molecular electrolysis is generated on the surfaces of bacterial cells by utilizing the current signal; meanwhile, the electroporation effect generated by the current can destroy the integrity of a bacterial membrane and induce metabolism disorder of bacteria, and as a physical method, due to the fact that no additional antibacterial material needs to be loaded and the broad-spectrum antibacterial effect is achieved, the bacteria can be thoroughly killed while the drug resistance of the bacteria is effectively avoided.

Belonging to the field of petrochemical engineering, the invention discloses a catalytic slurry oil purification device, which comprises a tank body, and a feed end and a discharge end respectively arranged at two ends of the tank body. An upper partition plate and a lower partition plate are fixedly connected to the inner wall of the tank body, a discharging opening is formed in the upper partition plate, and a feeding opening is formed in the lower partition plate; the interior of the tank body is divided into three independent cavities by the upper partition plate and the lower partition plate; according to the scheme, the filter element is sleeved with the hollow cylinder, and the rotatable first spiral flow deflector is further arranged between the inner wall of the hollow cylinder and the outer wall of the filter element; a rotatable first spiral flow deflector is further arranged between the inner wall of the hollow cylinder and the outer wall of the filter element; a shear force generated by rotation of the first spiral flow deflector can prevent a filter cake on the surface of the filter element from forming a compact thick layer; a filter cake layer can be controlled within a relatively thin thickness range, and the rising speed of the pressure difference is delayed, so that the operation duration of a single filtering period is prolonged; and the single-time continuous treatment capacity of the device is greatly improved.

The invention discloses a flue gas waste heat recovery device and method for a garbage incinerator. Relates to the technical field of waste incineration treatment and comprises a waste heat recovery box, a heat exchange pipe set driven by a main control gear, a transfer gear and a fixed gear ring is arranged in the waste heat recovery box, and heat exchange pipes conduct revolution and autorotation in smoke at the same time to enhance heat exchange. Accumulated dust on the outer surface of the heat exchange tube is removed through the rotating treatment scraper and the removing brush cylinder, and the reciprocating treatment kettle is used for knocking the tube wall of the heat exchange tube to shake off the dust; the flow speed and the flow direction of flue gas can be intelligently adjusted through an angle-adjustable speed adjusting plate on a treatment scraper, so that the device is suitable for different working conditions; the device realizes efficient and stable recovery of flue gas waste heat, can keep a heat exchange surface clean on line, and is high in adaptability.

The invention discloses an ozone catalyst and a preparation method and application thereof, Ni (NO3) 26H2O and Al (NO3) 29H2O are used as raw materials, and NiAl-LDH is prepared through a coprecipitation method; the preparation method comprises the following steps: preparing NiAl-LDH, reacting NiAl-LDH, AgNO3 and a Na2HPO4 solution to prepare Ag3PO4, and finally compounding NiAl-LDH and Ag3PO4 to prepare the ozone catalyst Ag3PO4 / NiAl-LDH composite material. The Ag3PO4 / NiAl-LDH composite material is used as an ozone catalyst to be applied to algae removal through combination of catalytic ozonation and a quorum sensing inhibitor, so that cell walls and internal structures of algae are more efficiently destroyed, and the algae removal effect is improved.

The invention discloses a three-sludge treatment agent and a preparation method thereof, and belongs to the technical field of oily sludge treatment, the three-sludge treatment agent comprises a treatment agent A and a treatment agent B. The treatment agent B comprises the following raw materials by mass: 30-40 parts of polyacrylamide, 8-10 parts of modified attapulgite clay, 5-6 parts of a compound, and 40-55 parts of deionized water. The modified attapulgite clay is strongly combined with protective films at oil-water and oil-sludge interfaces in the oil sludge through electrostatic force, hydrogen bonds and hydrophobic interaction, the protective films at the oil-water and oil-sludge interfaces are destroyed, oil drops are released and coalesced to form an oil phase, and separation of oil, water and sludge is achieved; positive charges carried in the modified attapulgite clay can be adsorbed to the surfaces of sludge particles with negative charges to be settled and separated out; carboxyl groups contained in the modified hemicellulose can be combined with hydrophilic groups of sophorolipid to form stable mixed micelles, so that the situation that the sophorolipid is easily influenced by the environment to lose efficacy, and oil drops are regathered and precipitated is avoided.

The invention provides an impact jet flow double-layer micro-channel heat sink structure with fins and a working method thereof, and belongs to the technical field of micro-channel enhanced heat dissipation, the impact jet flow double-layer micro-channel heat sink structure comprises an upper-layer micro-channel, a lower-layer micro-channel and a plurality of partition plates, the upper-layer micro-channel and the lower-layer micro-channel are connected through a middle layer, and the partition plates vertically penetrate through the upper-layer micro-channel and the lower-layer micro-channel; the upper-layer micro-channel comprises a heat sink top, a first inlet area is arranged on the heat sink top, a flow dividing area is arranged on the lower portion of the first inlet area, flow guiding areas are arranged on the two sides of the flow dividing area, a second inlet area and a third inlet area are arranged at ports of the two sides of the upper-layer micro-channel respectively, and fins are installed below the heat sink top. A confluence area is formed between the fins and the middle layer, the lower-layer micro-channel comprises a heat sink substrate, and outlet areas are arranged at ports of the two sides of the lower-layer micro-channel respectively; the heat exchanger has the characteristics of high efficiency, relatively uniform convective heat exchange performance, low energy dissipation and high overall heat exchange.

The invention belongs to the field of waste battery treatment, and particularly relates to a siderite-assisted method for recycling a waste lithium ion battery positive electrode material, which comprises the following steps: mixing a waste positive electrode material stripped from a waste lithium ion battery with siderite, transforming at the temperature of 300-700 DEG C, and then leaching in water to obtain a lithium liquid and transformation slag; according to the method, siderite is innovatively adopted to assist the treatment of the waste positive electrode material, so that the crystal structure of an active material in the waste positive electrode material can be effectively catalyzed and destroyed on the premise that activation is not needed, and in addition, under the combined action of the process and the positive electrode material, the iron can be effectively recycled. The alpha-Fe2O3 phase material can be converted into the alpha-Fe2O3 phase material with high selectivity, so that the alpha-Fe2O3 phase material and other components can be efficiently separated and recycled.

The invention discloses a preparation method of a piezoelectric MOF (Metal Organic Framework) sound-sensitive agent with an ultrasonic response ROS / CO synergistic antibacterial function. The preparation method comprises the following steps: synthesizing a catechol modified ruthenium carbonyl carbon monoxide donor through a coupling reaction of 2, 4-dihydroxyl-1-phenylalanine and carbonyl ruthenium chloride; the preparation method comprises the following steps: mixing a carnosine aqueous solution and a metal ion aqueous solution in a solvent, and self-assembling the carnosine aqueous solution and the metal ion aqueous solution by a hydrothermal method to obtain a piezoelectric metal organic framework (PMOF); and modifying the carbon monoxide donor on the surface of the PMOF through a complexation reaction between metal ions on the surface of the PMOF and phenolic hydroxyl groups of the carbon monoxide donor to obtain the piezoelectric MOF sound-sensitive agent with ultrasonic response ROS / CO synergistic antibiosis. The invention also discloses the piezoelectric MOF sonosensitizer with ultrasonic response ROS / CO synergistic antibacterial effect obtained by the preparation method and application of the piezoelectric MOF sonosensitizer in preparation of sonosensitizer hydrophobic drugs and / or antibacterial agents. The sonosensitizer provided by the invention has excellent biocompatibility, can controllably start release of active oxygen and carbon monoxide through ultrasound to achieve synergistic antibiosis, enhances the antibacterial ability, and has excellent biological membrane penetrating ability.

The invention discloses a high-pressure water spraying rust removal device for a ship outer plate, and belongs to the technical field of ship rust removal. The high-pressure water spraying rust removal device comprises a water tank, a plurality of cameras are fixedly mounted on one side of the water tank, and a controller is fixedly mounted on the front side of the water tank; the spraying mechanism is used for spraying high-pressure water flow, the spraying mechanism comprises a high-pressure water pump and a spraying cylinder, a water outlet of the high-pressure water pump is communicated with a hose, the top end of the hose is communicated with the spraying cylinder, and the outer side of the spraying cylinder is communicated with a plurality of high-pressure nozzles; the lifting driving mechanism is used for driving the water tank to lift; and the adjusting mechanism is used for adjusting the power of the driving motor and the high-pressure water pump, and the adjusting mechanism comprises a resistor strip, a mounting frame and a U-shaped frame. Through the monitoring mechanism and the spraying mechanism, the spraying pressure and speed can be automatically adjusted according to the spraying distance and the corrosion degree of the ship outer plate, so that the structure of a thick rust layer is effectively damaged, and a base material is prevented from being damaged.

The utility model provides an ultraviolet sterilization device and a reverse osmosis system, and relates to the technical field of sterilization equipment, the ultraviolet sterilization device comprises a shell and an ultraviolet generation unit, the shell comprises an overflowing cavity, a water inlet and a water outlet; the ultraviolet generating unit is arranged in the overflowing cavity, the ultraviolet generating unit comprises a lamp panel and a plurality of ultraviolet lamp beads, and the wavelength of at least one ultraviolet lamp bead is different from that of other ultraviolet lamp beads. According to the utility model, the ultraviolet lamp beads with different wavelengths are configured to generate ultraviolet rays with one wavelength or ultraviolet rays with different wavelengths, and the ultraviolet radiation of the ultraviolet rays with different wavelengths can effectively destroy chemical bonds of organic matters and cellular structures of microorganisms; therefore, microorganisms, bacteria, viruses or organic matters and the like in the sewage can be efficiently removed, the problem of membrane pollution and blockage caused by microorganism breeding in the subsequent reverse osmosis process is effectively solved, the service life of the reverse osmosis device is prolonged, and the cleaning difficulty of the subsequent reverse osmosis device is also reduced.

The application relates to a heat dissipation technology field of a fuel cell, in particular to a heat dissipation device integrated with anti-vibration and a fuel cell heat dissipation system, which comprises a shell, a fan arranged in the shell and a heat exchanger arranged on the side of the shell, and further comprises two opposite vertical arms arranged in the shell, a plurality of guide vanes corresponding to the gaps between two adjacent fins of the heat exchanger are rotatably arranged between the two vertical arms; the inclined guide vanes can change the flow direction of the airflow, so that the airflow can directly impact the wall surface of the fin, thereby effectively destroying the airflow layer wrapped on the fin due to vibration and not easy to flow, when the vibration intensity increases, the swing amplitude of the guide vanes increases, so that the stripping effect of the airflow on the low-speed airflow layer attached to the wall surface of the fin is more intense, the stripping effect of the airflow layer automatically matches the current vibration condition, the speed regulation mechanism increases the rotating speed of the fan, compensates for the additional wind resistance loss, and ensures that the convective heat exchange efficiency is maintained under different intensity vibration working conditions.

The invention discloses a photo-thermal and hypoxia dual-sensitive nano carrier material and a preparation method and application thereof, and relates to the field of nano materials, the preparation method comprises the following steps: S1, preparing a carboxymethyl chitosan grafted azobenzene product CMCS-Azo; s2, respectively preparing an L-glutamic acid solution and a carboxymethyl chitosan grafted azobenzene nanoparticle solution, then stirring the L-glutamic acid solution and the carboxymethyl chitosan grafted azobenzene nanoparticle solution for reaction, and performing post-treatment on an obtained reaction solution b to obtain L-Gr-CMCS-Azo; s3, adding the L-Gr-CMCS-Azo into the DMF solution in which the metal compound is dissolved, carrying out ultrasonic treatment and stirring, carrying out post-treatment on the obtained reaction solution c, and finally, carrying out vacuum drying to obtain a solid L-Gr-CMCS-Azo (at) M; and S4, dissolving the L-Grub-CMCS-Azo (at) M material in a DMSO solution, carrying out ultrasonic assisted dissolution, slowly dropwise adding into deionized water, stirring at a low speed, filtering with a microfiltration membrane, and freeze-drying to obtain the nano-carrier material. Therefore, the photo-thermal and hypoxia dual-sensitive nano-carrier material as well as the preparation method and the application thereof are of great significance to the development of anti-cancer therapy.

The utility model discloses an insoluble anode electrodeposition system capable of recovering byproducts. The system comprises an electrodeposition cell unit, an oxygen collection and purification unit, an electrodeposition liquid blending and neutralizing unit, a homogeneous membrane electrodialysis concentration unit, a resin purification unit and an acid-base separation unit, wherein the oxygen exhaust port is connected with an air inlet of the condenser; the anolyte overflow port is connected with an anolyte temporary storage tank; the dilute alkali circulation tank is connected with the hydroxide preparation kettle; a filtrate outlet of the filter press is connected with a homogeneous membrane electrodialysis raw material brine feeding tank; the bipolar membrane electrodialysis light salt brine temporary storage tank is connected with a raw material water inlet of the homogeneous membrane electrodialyzer; the homogeneous membrane electrodialysis strong brine temporary storage tank is connected with a feeding hole of the multi-stage resin exchange tower; the dilute acid circulating tank is connected with a feeding hole of the multi-stage resin exchange tower; and the purified strong brine storage tank is connected with a raw material brine inlet of the bipolar membrane electrodialyzer. The device can be used for recovering by-products in the insoluble anode electrodeposition process of the sulfate system, and is good in effect and relatively low in investment cost.

The invention relates to a method for determining copper, chromium and nickel in a solid mixture. The determination method comprises the following steps: wetting a solid mixture, and adding nitric acid, hydrochloric acid, hydrofluoric acid and perchloric acid for digestion reaction to obtain residues; dissolving the residues with a nitric acid solution to obtain a solution to be detected; and measuring the contents of copper, chromium and nickel in the solution to be measured by adopting a graphite furnace atomic absorption spectrophotometric method, namely the contents of copper, chromium and nickel in the solid mixture. The method can accurately measure the contents of copper, chromium and nickel in the solid mixture, and provides reliable data support for environmental monitoring, industrial production and scientific research.

The invention provides a method for extracting lithium from lepidolite through mechanical activation, and relates to the technical field of extraction of lithium from lepidolite. The method comprises the following steps: firstly, mechanically activating lepidolite concentrate in a chrome steel disc mill, and then uniformly roasting the mechanically activated concentrate and potassium-sodium mixed salt to obtain clinker; and crushing the clinker to a proper size, mixing with pure water, heating, stirring, and carrying out solid-liquid separation to obtain a lithium extraction mother solution and filter residues. According to the method, mechanical activation and potassium and sodium salt mixed roasting have a synergistic effect, and efficient extraction of lithium in the lepidolite concentrate is achieved. The method has the characteristics of high lithium ore phase conversion and high lithium leaching rate.

The invention discloses a method for realizing selective extraction of lithium in lepidolite ore by using urea thermal reduction. The method comprises the following steps: 1) pretreatment: crushing, screening, washing, filtering and drying a lepidolite ore material to obtain a lepidolite ore pretreatment material; 2) roasting: adding the lepidolite ore pretreatment material and a reducing agent urea into a tubular furnace according to a set proportion, adding a cosolvent, and roasting in an inert atmosphere to obtain roasted slag; and 3) leaching: adding water into the roasting slag for leaching, and obtaining a leaching solution rich in lithium ions after the leaching is finished. According to the method, roasting is carried out under the synergistic effect of urea and a cosolvent, the lattice structure of lepidolite is effectively damaged, and efficient selective recovery of lithium ions is achieved.

This utility model discloses an adhesive mixing device for fiberboard production, including a mixing tank. A positioning ring is installed on the bottom side wall of the mixing tank. The outer wall of the positioning ring has evenly distributed fixing openings. An upper cylinder with an opening facing downwards is installed on the inner wall of each fixing opening. A lower cylinder with an opening facing upwards is located at the bottom of the upper cylinder. A vibration spring is installed on the inner wall of the upper cylinder, and the bottom outer wall of the vibration spring is connected to the inner wall of the lower cylinder. An air pump is installed on the top outer wall of the mixing tank. The output end of the air pump is connected to the interior of the mixing tank through a pipe. A vibration motor is fixedly installed at the center of the bottom of the mixing tank. This utility model utilizes the high-frequency vibration generated by the vibration motor driving the vibration spring, combined with the negative pressure environment created by the air pump drawing a vacuum inside the mixing tank, to effectively break down the bubble structure in the adhesive, causing the bubbles to rise rapidly and burst, thus quickly eliminating air bubbles in the adhesive.

The application discloses an aquaculture tail water treatment system and a use method thereof, which comprises a tail water storage tank, a high-pressure treatment unit, a photocatalytic reactor and a control unit. The high-pressure treatment unit comprises a supercritical water reactor, a controller connected with the control unit, a temperature sensor installed on the supercritical water reactor, a pressure sensor and a viscosity monitor used for monitoring the viscosity of tail water. The controller is used for receiving data collected by the temperature sensor and the pressure sensor. The supercritical water reactor has two different environmental states, i.e. a subcritical water environment and a supercritical water environment. The control unit adjusts parameters in the supercritical water reactor and switches the two different environmental states. The solubility of mucus, gonad hormones, organic matters and other impurities in tail water can be enhanced, and the macromolecular network structure and proteins in the impurities can be effectively destroyed, so that more efficient decomposition is realized.

The invention provides a hydrogen-suitable exhaust nozzle integrated heat regenerator, and relates to the technical field of high-end equipment manufacturing, and the hydrogen-suitable exhaust nozzle integrated heat regenerator comprises an exhaust nozzle forming a fuel gas flow channel; the gradient double-path heat return channel is embedded between the outer wall surface and the inner wall surface of the exhaust nozzle, is integrally formed with the exhaust nozzle, and is used for circulating a hydrogen medium to absorb gas heat; the gradually-changed double-path heat return channel comprises a hydrogen conveying pipe and a hydrogen return pipe which are used for inputting and outputting a hydrogen medium, a plurality of runway-shaped flow channels arranged at intervals in the axial direction and a plurality of confluence channels, each flow channel is provided with an arc-shaped channel extending in the circumferential direction, each confluence channel is connected between every two adjacent runway-shaped flow channels, and each confluence channel is communicated with the corresponding runway-shaped flow channel. And after the hydrogen medium flows in from one runway-shaped flow channel, the hydrogen medium is divided into two branches which reversely flow through the arc-shaped channels on the two sides respectively, and then enters the next runway-shaped flow channel after being converged by the converging channel, so that a double-path roundabout flow path is formed. According to the liquid hydrogen heat recovery device, efficient recovery of fuel gas heat in the flowing process of liquid hydrogen is achieved through the gradually-changed double-path heat recovery channel and the reinforced fin structure.

The invention relates to the technical field of agricultural product deep processing and functional food science, in particular to enzymolysis cyperus esculentus powder and a preparation method and application thereof. The preparation method comprises the steps that cyperus esculentus powder and water are mixed, pulped and cured; performing high-speed shearing pretreatment on the slurry; adding a compound enzyme preparation containing amylase, cellulase and protease for enzymolysis; carrying out enzyme deactivation after enzymolysis, and filtering; performing emulsification and two-stage high-pressure homogenization treatment on the filtrate; and finally spray-drying to obtain a finished product. Through the synergistic effect of high-speed shearing and composite enzymolysis, cell walls of cyperus esculentus are effectively broken, macromolecular nutrient substances are converted into micromolecules, and the solubility, taste and nutrition utilization rate of the product are remarkably improved. The prepared enzymolysis cyperus esculentus powder is good in instant solubility, good in flavor and high in stability, and can be widely applied to the fields of solid beverages, special dietary foods and the like.

The invention discloses a method for efficiently leaching platinum group metal in a waste automobile catalyst, and belongs to the field of rare and precious metal smelting. The method comprises the following steps: a leaching process: mixing the hulled waste automobile catalyst with a leaching agent, carrying out acid leaching in an acidic solution for a period of time, adding a complexing agent to complex platinum group metals, leaching for a period of time, and filtering to obtain a pregnant solution rich in the platinum group metals and carrier residues; wherein the leaching agent is a cerium-containing compound; a resin adsorption process: adsorbing the pregnant solution through an adsorption column filled with adsorption resin to obtain an adsorbed solution; and an elution process: washing the adsorbed adsorption resin with water and eluting the platinum group metal step by step, and regenerating the eluted adsorption resin for cyclic utilization. The method aims at avoiding generation of toxic and harmful substances (chlorine and NOx) and use of highly toxic cyanide in an existing wet process, environmental pollution and potential safety hazards are fundamentally eliminated, and meanwhile the leaching efficiency of the platinum group metal is remarkably improved.

The invention relates to the technical field of traditional Chinese medicinal material processing, in particular to a traditional Chinese medicinal material crushing and alcohol extraction integrated device. The device comprises a base and an extraction tank fixed at the top of the base. Through the structural design of the extraction tank, the pretreatment mechanism and the grinding mechanism, the device realizes organic combination of crushing and alcohol extraction in the processing process of traditional Chinese medicinal materials, can ensure that the traditional Chinese medicinal materials can be fully crushed and the cell walls of the medicinal materials are effectively damaged, so that the effective components in the traditional Chinese medicinal materials are released to the greatest extent, and the extraction efficiency is improved; through the structural design of the uniform mixing mechanism, the device is matched with vibration generated by an ultrasonic transducer to enable a solvent to continuously flow, so that the solvent can continuously make contact with the traditional Chinese medicinal materials, cell walls can be broken under the cavitation action of ultrasonic waves, and the yield and quality of the traditional Chinese medicinal materials are improved; active ingredients in cells can be more easily released into the solvent, so that the extraction speed is accelerated.

This utility model relates to the technical field of waste gas purification devices, and discloses a high-efficiency adsorption device for purifying calcining furnace waste gas, including a base and a disinfection chamber. A spray chamber is fixedly connected to the top of the base. A second air guide pipe passes through one side of the spray chamber, and one side of the second air guide pipe passes through the outer wall of the disinfection chamber. A disinfection component is installed inside the disinfection chamber. An adsorption chamber is fixedly connected to the top of the disinfection chamber, and an installation strip is fixedly connected inside the adsorption chamber. An adsorption component is installed inside the installation strip. In this utility model, the spray layer removes large particulate impurities, preventing blockage of subsequent honeycomb catalysts and activated carbon plates; the ultraviolet catalytic combination efficiently inactivates microorganisms and decomposes VOCs. Simultaneously, the porous design of the air guide box ensures uniform dispersion of waste gas and sufficient contact with activated carbon, significantly increasing the adsorption area and time, improving activated carbon utilization and overall purification efficiency.

The present invention relates to a kind of skin-friendly non-sense cotton and preparation method thereof, and belongs to the technical field of polymer materials. The skin-friendly non-sense cotton includes, by weight: 60-100 parts of cotton fiber, 10-15 parts of catalyst, 10-20 parts of anti-wrinkle finishing agent, 5-10 parts of modified antibacterial agent, 5-10 parts of trimethylolpropane polyether, 2-5 parts of Chinese medicine ingredients, and 4-8 parts of deionized water; the anti-wrinkle finishing agent molecules enter the amorphous region of cotton fiber, tightly entangle with cellulose molecules, hinder the relative slip between cellulose molecules, and in addition, the isocyanate group is unblocked at high temperature, and forms a network structure with cotton fiber, enhances friction resistance and hydrogen bonding, and improves anti-wrinkle performance; in the modified antibacterial agent, stilbene and chitosan destroy bacterial cell membranes, cause nucleic acid and protein leakage, accelerate cell apoptosis, and inhibit bacteria and mite activities. The skin-friendly non-sense cotton prepared by the present invention not only has good comfort, but also has excellent anti-wrinkle, anti-mite and antibacterial properties.

The invention discloses a crushing device for high-density board processing, and relates to the technical field of crushing, the crushing device comprises an external protective shell, two sides of the inner wall of the external protective shell are each fixedly provided with a group of inner supporting frames, the rear surface of the external protective shell is fixedly communicated with a hollow frame, and the top of the external protective shell is fixedly provided with an upper sealing cover; the top of the upper sealing cover fixedly communicates with a square pipe, a grading shape breaking mechanism is arranged in the external protection shell, an adsorption dust removal mechanism is arranged in the hollow frame, the grading shape breaking mechanism comprises a first rectangular cover, a second rectangular cover is fixedly installed at the bottom of the first rectangular cover, and the mechanism can treat plates in a grading mode. And the volumes of a plurality of materials formed after each stage of treatment of the plate are gradually reduced, and each stage of material is limited by the structure when being put down, so that the uniformity of the size of each material is ensured, the final crushing difficulty is reduced, the subsequent particle powder quality is improved, and meanwhile, the assembly is high in plate applying strength, and colloids in the plate are effectively damaged.

The utility model discloses a ball screw for a braking system, which comprises a thread sleeve and a screw, the thread sleeve and the screw are respectively provided with a threaded channel, a plurality of balls are rotatably arranged in the threaded channels, the thread sleeve is rotatably connected, a reverser is arranged on the thread sleeve corresponding to the positions of the balls, and the reverser is connected with the screw. The threaded sleeve is provided with a flange in the length direction of the lead screw, a connecting spline is arranged on the flange, the lead screw is arranged in a hollow mode to form a connecting through hole, the reverser is provided with a guide groove used for being communicated with an adjacent threaded channel, the position, corresponding to the guide groove, of the reverser is provided with a lubricating window, and a grease storage device is inserted into the lubricating window. The structure is simple, the using effect is guaranteed, meanwhile, the balls are convenient to lubricate, and the good using effect is achieved.

This invention discloses a side-mounted magnetic stirring device and method. The device includes a storage unit, a spherical stir bar placed inside it, and a magnetic stirrer disposed on its outer wall. The spherical stir bar has an embedded magnet, and the magnetic stirrer drives the spherical stir bar to roll and / or rotate through a magnetic field. The outer wall of the storage unit may be provided with a slide rail or guide groove, and the magnetic stirrer can move axially via a slider or roller; it may also include a fixing component and an adjusting screw for connecting the magnetic stirrer and the liquid-pushing piston and adjusting their relative positions. The method includes placing the spherical stir bar inside the storage unit, starting the magnetic stirrer to drive stirring, and making the magnetic stirrer move synchronously with the liquid-pushing piston. This invention requires no modification to the opening, does not occupy bottom space, has no leakage risk, and is easy to assemble and disassemble, making it particularly suitable for tubular liquid storage units with limited bottom space or requiring temporary stirring.

This invention discloses a coal gangue grouting and filling material with high rheological resistance and resistant to bleeding, its preparation method, and its application, relating to the field of mine filling material technology. The grouting and filling material, by mass percentage, comprises: 70%~75% coal gangue, 0.55%~2.3% composite rheology modifier, and the balance being water; wherein the composite rheology modifier includes an air-entraining agent and a dispersant, with a mass ratio of (90~99):(1~10); the air-entraining agent is a surface-active foaming material, and the dispersant is a phosphate additive. In its preparation, coal gangue is first mixed with water and stirred to obtain an initial slurry; then the air-entraining agent and dispersant are mixed to prepare the composite rheology modifier; finally, the composite rheology modifier is added to the initial slurry and stirred until homogeneous to obtain the grouting and filling material. This grouting and filling material uses coal gangue as the main raw material, has a simple preparation process, and possesses excellent fluidity, stability, and pumpability.

The utility model discloses a dust remover cooling device for secondary aluminum alloy production, which belongs to the technical field of flue gas cooling and comprises an air cooling box, a plurality of shunt pipes are longitudinally arrayed in the air cooling box, conical cavities are detachably connected to the top surface and the bottom surface of the air cooling box, the conical cavity at the top is communicated with a flue gas inlet pipe, and the conical cavity at the bottom is communicated with a flue gas outlet pipe. The top end of the shunt pipe extends out of the top surface of the air cooling box and is communicated with the conical cavity communicated with the flue gas inlet pipe; the bottom end of the shunt pipe extends out of the bottom surface of the air cooling box and is communicated with the conical cavity communicated with the flue gas outlet pipe; an air inlet and an air outlet are respectively formed in two opposite side surfaces of the air cooling box; a fan is correspondingly and fixedly connected outside the air inlet; a spiral flow deflector is arranged in the flow dividing pipe and detachably connected with the flow dividing pipe. Through the innovative structural design, the high-temperature flue gas cooling device has remarkable advantages in the aspects of high-temperature flue gas cooling efficiency, equipment maintenance convenience and the like.