41results about How to "Avoid oxidation reactions" patented technology

The invention discloses a process for processing a corrosion-resistant aluminum alloy pipe through laser cladding, which comprises the following steps of: performing laser cladding on a formed aluminum alloy pipe, transmitting a laser beam to the surface of the aluminum alloy pipe, conveying cladding layer powder / alloy wires to a laser area, quickly melting the cladding layer powder / alloy wires and the surface of the aluminum alloy pipe together through the laser beam, and solidifying, thereby obtaining the corrosion-resistant aluminum alloy pipe. The cladding layer combined with the aluminum alloy pipe is formed on the surface of the aluminum alloy pipe, cladding layer powder / alloy wires are made of zinc or zinc alloy, the cladding layer serves as a sacrificial anode, a thin and compact oxide and hydroxide layer is formed on the surface of the aluminum alloy pipe, further oxidation reaction is effectively prevented, and the corrosion resistance and reliability of the aluminum alloy pipe are improved. And the laser cladding procedure can be accurately controlled by controlling the laser power of the laser beam, the spot diameter, the passing speed of the aluminum alloy pipe and the speed of conveying cladding layer powder / alloy wires, so that the cladding layer has the advantages of being small in dilution degree, compact in structure, good in combination with the aluminum alloy pipe and not prone to falling off.

The invention discloses application and a method of phytic acid compounds in inhibition of anode chlorine evolution reaction through seawater electrolysis. The phytic acid compound can be applied to electrolyte for seawater electrolysis to inhibit anode chlorine evolution reaction, the electrolyte is an aqueous solution containing chloride ions, and the electrolyte further comprises the phytic acid compound. The method comprises the following steps: electrifying an electrochemical reaction system comprising a cathode, an anode and an electrolyte for electrolysis so as to obtain hydrogen at the cathode and oxygen at the anode; the electrolyte is an aqueous solution containing chloride ions, and the electrolyte further comprises a phytic acid compound. When the phytic acid compound is used for seawater electrolysis, adsorption and oxidation of chloride ions on an anode can be remarkably improved, the chlorine evolution reaction of the anode can be effectively inhibited, the anode is protected from being corroded, and the seawater electrolysis efficiency is improved; and the phytic acid compound is derived from biomass, is low in price and is easy to popularize and apply.

The invention discloses a low-temperature storage and preservation method for litchis. The method comprises the following steps of: removing branches and leaves of fresh litchis which are 80-90% mature, and reserving bare litchis; the fruits pass through a sorting line, and defective fruits are picked out; and soaking the lychee in an ergothioneine and mannitol solution, draining water, packaging the lychee with a moisture-permeable and air-permeable functional fresh-keeping bag, and storing the lychee at the temperature of-1 DEG C to 5 DEG C. According to the fresh-keeping method combining ergothioneine, mannitol and a moisture-permeable and air-permeable functional fresh-keeping bag, the fresh-keeping period of the litchis can be effectively prolonged through natural oxidation resistance and hydration and by matching with humidity adjustment and gas exchange, and the flavor, texture and nutritional ingredients of the litchis are kept. The method not only meets green and environment-friendly requirements, but also can remarkably reduce loss of litchis in transportation and storage, reduce food waste and improve food safety, and is an advanced and efficient fruit fresh-keeping technology.

The utility model discloses a latex tank with a batching mechanism for condom production. The latex tank comprises a latex storage tank, a material passing pipe tightly connected to the inner wall of the bottom end of the latex storage tank, a regulating valve arranged on the material passing pipe, the batching mechanism connected to one end of the material passing pipe, a flow meter connected with the batching mechanism and a transfer tank, the bottom supporting mechanism is arranged at the bottom end of the transfer tank; the air exhaust mechanism is positioned on one side of the transfer tank; the batching mechanism comprises two arc-shaped supports, a hinge connected between the two arc-shaped supports, and an L-shaped extension plate fixedly connected to the outer wall of one side of each arc-shaped support. The liquid latex cannot be in contact with outside air, so that oxidation reaction is avoided, meanwhile, the solidified latex can be conveniently cleaned, and the smooth passing effect of the liquid latex is guaranteed.

This invention discloses a method for preparing high-purity oxygen-free copper, relating to the field of metallurgical technology. The method includes multi-stage electrolytic refining, gradient-heating vacuum melting, inert gas-protected refining, electron beam melting, hydrogen plasma arc melting, directional solidification, and post-treatment steps. The multi-stage electrolytic refining utilizes a specific component electrolyte and periodically commutated current; vacuum melting is combined with bidirectional electromagnetic stirring; inert gas-protected refining is combined with a gradient reduction composite covering agent; electron beam and hydrogen plasma arc melting achieve deep purification and deoxidation; and directional solidification and two-stage annealing ensure product performance. The high-purity oxygen-free copper prepared by this invention has a conductivity of 102.3% IACS, a copper content ≥99.9999%, and an oxygen content <1.0 ppm. It exhibits high purity, low oxygen content, and excellent conductivity. The process is stable and controllable, making it suitable for high-end electronics applications.

The application discloses a WC+TiC particle reinforced high-entropy alloy coating and a preparation method thereof, and belongs to the field of coating preparation. The coating comprises a bottom layer, and the chemical components and mass percentages of the bottom layer are as follows: carbon: 0.1-0.5%, boron: 1-1.3%, chromium: 19-21%, nickel: 21-24%, silicon: 1-1.5%, molybdenum: 8-10%, cobalt: 22-24%, sulfur: 0.005-0.015%, phosphorus: 0.015-0.045%, and the balance is iron and inevitable impurities; and a working layer, and the chemical components and mass percentages of the working layer are as follows: WC: 15-25%, X: 1.5-4.5%, and the balance of components and the proportion between the components are the same as those of the bottom layer, wherein the X is TiC particles coated with Ni on the surface. The method is used for preparing the coating, and compared with a conventional coating, can effectively improve the wear resistance and corrosion resistance of the coating, and prolong the service life of equipment.

The utility model discloses pyrolysis equipment for organic solid waste treatment, which comprises a pyrolysis mechanism, the top of the pyrolysis mechanism is fixedly connected with a bottom connecting pipe, the bottom connecting pipe is Y-shaped, a sorting component and a grinding component are arranged above the bottom connecting pipe, and the rear side wall of the pyrolysis mechanism is fixedly connected with a rear connecting pipe. By arranging a sorting barrel, a feeding pipe, a first motor, a first exhaust pipe, a main shaft, stirring blades, a filter sieve, a vibration spring, a vibration motor, a fixing ring, a grinding barrel, a second exhaust pipe, a second motor, a rotating shaft, a material guide disc, an upper grinding disc and a lower grinding disc, organic solid waste is put into the sorting barrel, and after sorting is conducted, large and small organic solids are separated; small particles directly enter the pyrolysis mechanism to be pyrolyzed, and large particles are crushed and then enter the pyrolysis mechanism to be pyrolyzed, so that the pyrolysis efficiency is greatly improved, and meanwhile, an oxidation reaction caused by excessive accumulation of organic solid wastes is avoided.

The invention belongs to the technical field of oil sludge treatment, and particularly relates to a spiral electromagnetic heating oil sludge treatment device and a using method thereof.The spiral electromagnetic heating oil sludge treatment device comprises a machining body and a feeding assembly arranged on one side of the machining body and further comprises a stirring mechanism and a heating mechanism, the stirring mechanism is arranged on the machining body, and the heating mechanism is arranged on the machining body; the stirring mechanism comprises a stirring assembly and a nitrogen filling assembly, the stirring assembly is arranged on the processing main body, and the nitrogen filling assembly is arranged on one side of the stirring assembly; through the steam heating assembly, the temperature of the oil sludge can be increased through steam heating, oil and water in the oil sludge can be separated more easily at the high temperature, the physical properties of the oil and the water can change along with temperature rising, and therefore separation of the oil and the water is facilitated.

The present invention belongs to the technical field of rare earth metal electrolysis, and discloses a rare earth metal electrolysis device and method capable of reducing non-metallic impurities, including a base assembly and a guide assembly. The present invention sets up the coordination of structures such as the electrolysis assembly and the base assembly, and after the cathode rod and the anode rod are energized, the rare earth metal is precipitated around the cathode rod, and the exhaust gas and impurities are precipitated from the anode rod. When the telescopic rod rises, it pushes the cover plate 2 to swing back and forth through the track of the inclined surface of the triangular block, so that the rare earth metal inside the electrolytic cell can be fully electrolyzed, and the rare earth metal is located inside the metal mesh, so that the precipitated metal liquid can flow out through the hollowed-out part of the metal mesh, and the metal that has not been electrolyzed is still in a solid state, and is always located inside the metal mesh and contacts the cathode rod to produce an electrolysis reaction, further improving the quality of the rare earth metal being electrolyzed and the working quality of the device.

The invention discloses a compound antioxidant and a preparation method thereof. The compound antioxidant comprises the following raw materials: 50-100g of copper sulfate; 150 to 200 ml of sodium sulfite; 15 to 20g of disodium ethylene diamine tetraacetate; 5-10 g of sodium dodecyl benzene sulfonate; and 500 to 1000 ml of deionized water. The composite antioxidant is prepared by the following process steps: fully dissolving 50-100g of copper sulfate in 1L of deionized water, and uniformly stirring. Slowly adding 150-200ml of sodium sulfite into the copper sulfate solution, controlling the reaction temperature within 30-50 DEG C, and continuously stirring for 1-2 hours until the reaction is complete. Adding 15-20g of disodium ethylene diamine tetraacetate into the solution, and stirring for 1 hour to improve the stability of the antioxidant. And then adding 5-10g of sodium dodecyl benzene sulfonate, and stirring for 1 hour. And finally, removing impurities in the solution in a suction filtration or filtration manner to obtain the composite antioxidant. The composite antioxidant is safe, environmentally friendly and high in applicability, oxidation reaction of copper can be effectively inhibited to a certain extent, and the shelf life of the product is prolonged.

The application relates to a preparation method and a phased application method of an aging SBS modified asphalt regenerant with diffusion and enhancement, and belongs to the technical field of road engineering materials and waste asphalt regeneration. A first agent and a second agent are used in stages, the first agent comprises naphthenic base oil and / or aromatic base regenerative oil, epoxy vegetable oil and / or fatty acid ester, a surface active diffusion promoter, a small molecule compatibilizer and an antioxidant, the second agent comprises maleic anhydride grafted SBS and / or maleic anhydride grafted SEBS, liquid rubber and / or hydroxyl-terminated polybutadiene, an epoxy reactive compatibilizer, tackifying resin, a non-amine type interface stabilizing aid and a complexing aid of a hindered amine light stabilizer and an ultraviolet absorber. The application can solve the problems that softening and enhancement of a traditional single-dose regenerant are difficult to be considered, the two-component synchronous adding mode is insufficient in stage control, aging SBS modified asphalt diffusion softening is insufficient, SBS elastic network repair is uneven and the durability after regeneration is insufficient.

The present application relates to the technical field of spinning machine, especially to a magnesium alloy hot spinning three-wheel powerful spinning machine spinning control method and system, the method comprises the following steps: workpiece installation in place, start heating mechanism and oxidation protection mechanism, reach temperature target value after heat preservation; Spindle mechanism rotation, hot spinning three-wheel powerful spinning machine gradually press to workpiece, pressure sensor real-time collection radial cylinder load force information, temperature sensor real-time collection workpiece surface actual temperature information, displacement sensor real-time collection radial cylinder piston rod radial displacement information; Real-time calculation servo valve opening, intermediate frequency furnace heating compensation power, the flow required by oxidation protection mechanism inert gas; And control according to the calculated value, unload workpiece after reaching the target spinning pressure. The method and system provided by the present application can realize high-temperature accurate heating and oxidation protection of the workpiece, and the production efficiency and the yield are significantly improved.

The utility model discloses a PE-HM stiffened perforated corrugated pipe, and particularly relates to the technical field of corrugated pipes, the PE-HM stiffened perforated corrugated pipe comprises a corrugated pipe main body, the outer side of the corrugated pipe main body is sleeved with a winding protection pipe, the top of the inner wall of the winding protection pipe is fixedly connected with a plurality of vertical supporting ribs, and the front side surfaces of the vertical supporting ribs are provided with a plurality of fixing holes; a winding pipe inner plate is fixedly connected between the winding protection pipe and the outer wall of the corrugated pipe body, and two reinforcing ribs are fixedly connected between the winding pipe inner plate and the vertical supporting ribs. Local compression resistance and deformation resistance are greatly improved, meanwhile, the first supporting rib and the second supporting rib penetrate through a middle hole formed by the corrugated pipe body, bending modulus can be effectively released, when the pipe is pulled or pressed, internal stress distribution is more reasonable, tensile resistance is remarkably improved, the pipe can better adapt to complex underground environments and external loads, and the service life of the pipe is prolonged. And the engineering scene with the high requirement for the mechanical property of the pipe is met.

A kind of high-speed kneader for producing PP automobile modified material, it is related to the technical field of kneader, solve the problem that the structure of paddle is single in prior art, it is difficult to consider high-strength shearing and gentle mixing.The mixing cavity is connected with the discharge cavity at the bottom end, and the discharge cavity is provided with a discharge channel at the lower end;The top of the mixing cavity is connected with an electrical control box, and the top of the mixing cavity is also provided with a driving motor, a rotating shaft is coaxially connected in the mixing cavity, a combination stirring blade is fixed on the periphery of the rotating shaft, the combination stirring blade includes shear blade, conveying blade and cleaning blade, the shear blade, conveying blade and cleaning blade are arranged in order from top to bottom.The beneficial effect is: multiple functions can be realized by combination stirring blade, high-strength local shearing is provided, mixing is uniform, and mixing efficiency is high.

This invention discloses a briquetting device for recycling non-ferrous scrap metal, relating to the field of metal resource recycling technology. It includes a forming box, a feeding mechanism, a briquetting mechanism, and an atmosphere protection mechanism. A controller is fixedly installed on one outer wall of the forming box, and a weighing plate with a built-in weight sensor is fixedly installed on the bottom inner wall of the forming box. This invention uses a rodless cylinder-driven reciprocating feeding cylinder, combined with a screw feeder and a laser ranging probe, to achieve multi-layer, multi-point uniform distribution of material within the forming box. This effectively avoids the problem of uneven briquetting density distribution caused by material accumulation on one side in traditional devices, improving the overall density consistency of the briquetting. The weighing plate with the built-in weight sensor accurately measures the weight of the material for each briquetting operation, and combined with an ultrasonic thickness sensor to detect the thickness of the briquetting blocks after forming, this invention ensures that the weight and thickness of each briquetting block are within the set range, meeting standardized production requirements.

The utility model discloses a taper drill bit heat treatment frock relates to taper drill bit technical field. Including, the fixed frame is fixedly provided with the main limit frame on the outer wall top surface of fixed frame, and the bottom of fixed frame is fixedly provided with the closing plate, and the top of inner wall of fixed frame is slidably embedded with a plurality of lift columns, and the top of outer wall of a plurality of lift columns is fixedly provided with the lifting plate, and the outer wall of lifting plate is slidably embedded in the main limit frame, and the bottom of outer wall of lifting plate is fixedly provided with the sliding column, and the outer wall of sliding column is slidably embedded in fixed frame and closing plate. Through closing plate, lift column, lifting plate, sliding column and electromagnetic thread coil, can utilize electromagnetic heating mode, and fill inert gas, to prevent the oxidation reaction of taper drill bit surface to improve the heating efficiency and reduce the change of taper drill bit structure.

The utility model discloses a kind of filling sterilization devices for improving high bubble protein liquid shelf life, it is related to protein liquid sterilization technical field, including: pretreatment device, multistage sterilization device, sterile filling device, control box, the utility model removes dissolved oxygen by vacuum degassing device, combined with inert gas filling protection, oxygen residual amount is reduced to below 0.5%, effectively inhibits oxidation reaction, makes high bubble protein liquid shelf life extend to 6-12 months, again through high temperature short time sterilization and ultraviolet auxiliary sterilization dual sterilization mode, sterilization rate is ≥99.9%, while through the rapid temperature control of plate heat exchanger, avoid protein denaturation and foam structure damage, again through sterile cabin body cooperation positive pressure air supply and air filter, maintain filling clean environment, the variable frequency peristaltic pump of low shear force filling device and under liquid filling head realize gentle filling.

The utility model discloses a kind of floatation reagent adding flow control device, including fixed pipe and fixed frame, the outer wall of fixed pipe is connected and installed with flow control mechanism on one side of top, the outer wall of flow control mechanism is fixedly installed with floatation reagent raw material box on top, the fixed frame is fixedly installed in the outer wall of fixed pipe one side, the inner wall one side of fixed frame is equipped with the floatation reagent raw material propulsion mechanism of telescopic activity, the inner wall one side of fixed pipe is welded and installed with shielding block, the outer surface other side one side of fixed pipe is equipped with the size matching discharge pipe. This kind of floatation reagent adding flow control device, by setting flow control mechanism, so flow of floatation reagent raw material can be controlled, by setting floatation reagent raw material propulsion mechanism, so the amount of floatation reagent raw material can be controlled, so the amount of floatation reagent raw material addition can be automatically controlled.

The invention relates to the field of sweet potato powder processing, in particular to full sweet potato powder and a preparation method thereof. Comprising the following steps. Step 1 sweet potato cleaning, Step 2 peeling, Step 3 picking, Step 4 secondary cleaning, Step 5 shredding, Step 6 blanching, Step 7 cooling, Step 8 cooking, Step 9 drying, Step 12 cooking, Step 11 secondary drying, Step 12 crushing, Step 13 freezing, Step 14 sterilizing and Step 15. Seventeenthly, mixing the whole sweet potato powder with six different fine meshes; eighteenthly, sterilizing; nineteenthly, bagging; the whole sweet potato powder is prepared from south sweet potatoes 88, sugar does not need to be added additionally, the sweetness of the whole sweet potato powder is just good, during preparation, the technical difficulties in the sweet potato processing process can be effectively solved through the methods that the shredded sweet potatoes are blanched and cooled, cooked twice and dried, and six kinds of whole sweet potato powder with different fine meshes are mixed, and the whole sweet potato powder is suitable for large-scale production. And the quality and taste of the sweet potato product are greatly improved.

This invention discloses a method for low-temperature pressing purification and dewaxing of Torreya grandis kernels, comprising at least the following steps: S5.1 Pre-preparation of a composite filter layer: After pre-cooling the filter chamber of a vacuum filtration device, a filter screen and a filter membrane are laid in sequence, and nitrogen is introduced to remove impurities; S5.2 Gradient negative pressure filtration: The initially dewaxed oil is injected into the filter chamber at low temperature, first pre-filtered at -0.05MPa to -0.06MPa for 10 minutes, then deep filtered at -0.08MPa to -0.09MPa for 20 to 30 minutes to retain trace wax crystals; S5.3 Nitrogen purging to remove water: The dewaxed oil is introduced into a low-temperature oil storage tank, and nitrogen is continued to be introduced to remove water and prevent oxidation; S5.4 Finished product fine filtration: The dewaxed oil is slowly heated and then finely filtered through a filter screen to obtain Torreya grandis finished oil. Gradient negative pressure filtration retains trace wax crystals in Torreya grandis oil. This invention employs a gradient negative pressure dewaxing step, which ensures sufficient driving force to accelerate the filtration speed and utilizes the formed filter cake layer as a secondary filtration medium to efficiently retain trace amounts of residual wax crystals. This approach ensures a high dewaxing rate while shortening the filtration time and improving production efficiency.

The application discloses a gas furnace for reducing forging heating oxidation and a control method. The gas furnace comprises a furnace body, a burner unit, a natural gas supply unit, a combustion-supporting air supply unit, a detection system and a control system. The furnace body is provided with multiple temperature control zones. The burner unit comprises multiple burners. The natural gas supply unit is connected with the burner unit to provide natural gas for the burner unit. The combustion-supporting air supply unit is connected with the burner unit to provide combustion-supporting air for the burner unit. The detection system comprises a temperature detection unit and an oxygen content detection unit. The temperature detection unit is used for monitoring the temperature of each temperature control zone. The oxygen content detection unit is used for monitoring the oxygen content in flue gas discharged from the flue gas pipeline of the furnace body. The control system is electrically connected with the natural gas supply unit, the combustion-supporting air supply unit and the detection system. The control system is used for automatically regulating the natural gas flow and the combustion-supporting air flow according to the temperature data and the oxygen content data. The application has the advantage of improving the forging oxidation inhibition effect.

The utility model discloses an anti-oxidation metal medal, and relates to the technical field of medal oxidation prevention. An outer block is placed on the upper portion of the base assembly, an inner block is fixedly connected to an inner cavity of the outer block, protective covers are symmetrically and rotatably connected to the upper end of the base assembly, sliding rails are symmetrically and fixedly connected to the upper portions of inner cavities of the protective covers, inner cavities of the two sliding rails on the same side are jointly and slidably connected with a containing box assembly, and a drying agent is placed in an inner cavity of the containing box assembly. The outer block can be supported and connected through the base assembly, so that the surfaces of the inner block and the outer block can make full contact with air, a large amount of moisture is prevented from being accumulated on the surfaces of the inner block and the outer block, the base assembly is rotationally connected with the protective cover, and therefore when a medal is displayed, the medal can be conveniently and rapidly displayed. According to the medal box, the protective cover can be used for decorating the medal box, when the medal is stored, the medal can be protected through the protective cover, external air and moisture are prevented from making contact with the medal, and therefore oxidation of the medal can be reduced or even avoided.

The utility model provides a sealing track clamp of a gold-copper alloy wire welding machine, relates to the technical field of semiconductor processing auxiliary devices, and aims to solve the problems that a frame required by a copper alloy wire welding machine is easy to react with air along with the improvement of production requirements, the existing gold-copper alloy wire welding machine is not provided with an anti-oxidation device, and the production cost is low. The device comprises a heating block and a pressing plate, an air inlet hole is formed in the pressing plate, the air inlet hole is connected with an external nitrogen and hydrogen mixed gas pipe, multiple sets of bowl-shaped gas storage grooves are evenly distributed in the heating block, and multiple sets of heating block gas path holes are evenly distributed in the heating block.

The invention belongs to the technical field of composite materials, and particularly relates to a titanium-based composite material of a bionic layered structure and a preparation method and application of the titanium-based composite material. The titanium-based composite material is prepared from the following chemical components in percentage by mass: 88.0%-92.0% of a Ti element, 6.2%-7.5% of a Cr element, 0.6%-0.9% of a B element, 0.6%-1.0% of a C element and inevitable impurities, and the total percentage is 100%. A material containing a Ti element, a material containing a Cr element, a material containing a C element and a material containing a B element are subjected to vacuum suspension smelting and casting of a (TiC + TiB) / Ti composite material cast ingot, the obtained (TiC + TiB) / Ti composite material cast ingot is subjected to homogenization, hot rolling and annealing composite process treatment, then the annealed (TiC + TiB) / Ti composite material cast ingot plate is used as a reinforcing layer, a TC4 titanium alloy plate is used as a toughness layer, and the TiC + TiB / Ti composite material cast ingot is subjected to heat treatment. Alternately laminating and placing; and finally, the high-toughness titanium-based composite material of the bionic layered structure is obtained through vacuum hot-pressing diffusion bonding. The high-strength and high-toughness titanium-based composite material has high strength and high plasticity at the same time.

This invention relates to the field of steel rolling technology and discloses a steel rolling mill unit and a hydraulic pump servo pressure load balancing and energy-saving control system. The system includes a base with two symmetrically arranged machine bases mounted on its top surface. The opposing surfaces of the two machine bases have through grooves containing a first roll assembly and a second roll assembly for rolling steel plates. A first lifting mechanism is mounted on the bottom surface of the through grooves, with the first roll assembly mounted at its output end. Two symmetrically arranged first guide rails are mounted on the sides of the through grooves, with a first slide block slidably connected to each guide rail. The second roll assembly is mounted on the first slide block and is driven to rise and fall by the second lifting mechanism. Two symmetrically arranged water spray mechanisms are mounted on the sides of the machine bases. An air jet mechanism is also mounted on the machine bases. This unit has a stable structure, high roll adjustment precision, and can comprehensively clean iron oxide scale and effectively inhibit secondary oxidation, significantly improving the surface quality of rolled steel plates and the stability of production operation.

The utility model discloses a cleanable depolarization film which comprises a substrate, a first protective film layer made of aluminum oxide is plated on the substrate, a depolarization film layer is plated on the first protective film layer, an anti-dazzle film layer is plated on the depolarization film layer, and a second protective film layer made of aluminum oxide is plated on the anti-dazzle film layer. The depolarization film solves the problems that an existing depolarization film is easy to clean, damage and oxidize, and the light splitting performance is affected, through the depolarization film layer, the light splitting performance is improved, meanwhile, the polarization degree of light is reduced, and through the anti-oxidation film layer, invasion of oxygen molecules is effectively blocked, so that the light splitting performance is improved. An internal film layer is prevented from oxidation reaction, so that the service life of the product is prolonged.

The utility model discloses high-purity quartz sand oxygen-free chlorination roasting equipment which comprises a roasting section provided with a heat preservation furnace body and a heater, the heat preservation furnace body is arranged on the periphery of the heater in a sleeved mode, the two ends of the heater are respectively provided with a ventilation connector which reacts with sand inside the heater, and the heater maintains an internal oxygen-free environment through the ventilation connectors. Relates to the technical field of quartz sand oxygen-free chlorination roasting. Compared with traditional high-temperature chloridizing roasting equipment, the high-temperature chloridizing roasting equipment has the advantages of being high in heating speed, high in heating efficiency, capable of saving electricity and energy, even in heating, capable of achieving selective heating, good in environmental protection, capable of improving labor conditions, small in occupied area, capable of saving investment, low in maintenance cost and the like, and meanwhile the yield, quality and grade of products can be improved. Meanwhile, new impurities can be prevented from being introduced in the reaction process, and oxidation reaction is avoided.

The present application relates to coal gangue disposal technical field, specifically to a kind of coal gangue layered landfill disposal method, comprising the following steps: S1, landfill site pretreatment;S2, pipeline pre-buried processing: first pre-buried pipe and second pre-buried pipe are arranged on the landfill site, one end of first pre-buried pipe is located on pre-buried site, the other end extends to pre-buried site outside, second pre-buried pipe is vertically arranged on pre-buried site and is communicated with first pre-buried pipe, and a plurality of air holes are arranged on second pre-buried pipe along the length direction;S3, layered landfill processing: coal gangue layer and loess layer are filled on the landfill site, and layered structure of coal gangue layer-loess layer-coal gangue layer is formed, the uppermost layer of layered structure is loess layer, and coal gangue layer and loess layer are both compacted;Second pre-buried pipe is provided with air hole in corresponding position of each layer of coal gangue layer;S4, anti-oxygen gas is transported into second pre-buried pipe through first pre-buried pipe.The present application can reduce the risk of spontaneous combustion of coal gangue layer.

The invention relates to the technical field of rotating target materials, in particular to a centrifugal binding method of a large-size ITO rotating target material, which comprises the following steps: step 1, pretreatment of a contact surface: degreasing and cleaning the inner wall of the ITO target material and the outer surface of a metal back tube, and then respectively sputtering nickel or copper for metallization treatment, with the thickness of a sputtering layer being 0.5-2 microns; step 2, assembling and positioning: coaxially assembling to form a 0.1-0.3 mm uniform binding gap, and mounting a sealing check ring; 3, centrifugal binding is conducted, specifically, rotation is conducted at the rotating speed of 800-1500 r / min, high-purity indium solder at the temperature of 180-200 DEG C is injected, and inert gas protection is conducted; and 4, cooling molding: cooling to room temperature at 5-10 DEG C / min. Uniform filling of the welding flux is achieved through centrifugal force, the binding rate reaches 99% or above, the binding strength is larger than or equal to 25 MPa, the problems that a large-size target material is large in binding defect number and low in strength are effectively solved, and the method is suitable for industrial production.

The invention provides olive oil with repairing, soothing and anti-wrinkle functions and a preparation method and application thereof, and belongs to the technical field of cosmetics, the preparation method comprises the following steps: mashing and sieving olive fruits to obtain olive pulp; performing rotary evaporation on the olive pulp, then adding water, mixing, and centrifuging to obtain supernate and olive pomace; separating the supernate to obtain crude olive oil I; mixing olive pomace with water, and performing ultrasonic treatment, enzymolysis and sterilization to obtain pomace pretreatment liquid; inoculating zymophyte into the pomace pretreatment liquid for fermentation, and sterilizing to obtain pomace fermentation liquid; centrifuging the pomace fermentation liquor to obtain supernate; separating the supernate to obtain crude olive oil II; mixing the olive crude oil I and the olive crude oil II, then adding a modified adsorbent, heating, stirring and filtering to obtain olive crude oil; and performing vacuum deodorization on the olive crude oil to obtain the olive oil. The olive oil prepared by the invention has stable performance, is suitable for cosmetics, and has good repairing, soothing and anti-wrinkle effects and the like.