68results about How to "Promote oxidation" patented technology

The invention belongs to the technical field of sewage treatment, and discloses an anaerobic ammonia oxidation enhanced denitrification device and method based on an electron mediator type biological carrier and iron oxide. The anaerobic ammonia oxidation enhanced denitrification device comprises a reactor main body, a heat preservation circulating water device, a stirring device, a water inlet pipeline and a water outlet pipeline, anaerobic ammonium oxidation bacteria are contained in the reactor main body, a certain proportion of electron mediator type biological carriers are filled in the reactor, and a proper amount of iron oxide is added; wherein the added high-valence iron oxide can be used as an extracellular electron acceptor of anaerobic ammonium oxidation bacteria, the electron mediator type carrier can be used as a redox mediator, and nitrogen removal of the anaerobic ammonium oxidation system is promoted by strengthening the extracellular electron transfer process of the anaerobic ammonium oxidation bacteria.

The invention provides a method for deeply extracting vanadium from vanadium-containing steel slag, which comprises the following steps: mixing the vanadium-containing steel slag and an oxygen-containing microbubble ammonium bicarbonate solution, and carrying out mechanochemical ball milling activation to carry out leaching reaction to obtain a vanadium extracting solution. According to the method, advanced oxidation is cooperated with mechanochemical ball milling to activate and strengthen deep extraction of vanadium in the vanadium-containing steel slag, wrapping of substances such as calcium silicate and calcium titanium oxide on a vanadium-containing solid solution phase is destroyed through mechanical activation, and O2 microbubbles in an ammonium bicarbonate medium are promoted to generate active oxygen under excitation of mechanical activation energy; exposure reaction and deep oxidation extraction of a vanadium-containing phase under mild conditions are achieved, the content of V2O5 in tailings after vanadium extraction is smaller than or equal to 0.5%, and the vanadium extraction rate is 83% or above.

The invention discloses a water-based flux cleaning agent for integration, and belongs to the field of semiconductor cleaning agents. The water-based flux cleaning agent is prepared from the following raw materials in percentage by weight: 30-50% of alcohol ether solvent, 1-5% of organic amine, 3-5% of gemini imidazoline corrosion inhibitor and 40-70% of deionized water, wherein the sum of the weight percentages of the raw materials is 100%. According to the water-based flux cleaning agent, the imidazoline corrosion inhibitor is adopted, so that a remarkable cleaning effect on flux residues, soldering paste and fine particles on a semiconductor electronic device is achieved, meanwhile, the brightness of welding spots can be maintained, the surface insulation performance is good, the metal surface of an IPM module can be effectively prevented from being oxidized, and the service life of the IPM module is prolonged. The cleaning agent is especially suitable for cleaning pollutants in the welding process of semiconductor chips, chip type capacitors and circuit substrates.

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 porous carbon material based on microwave calcination and a preparation method thereof, and belongs to the field of porous carbon preparation, the preparation method comprises the steps that a carbon base material and potassium hydroxide are mixed according to the mass ratio of 1: 1-5, a mixed material is obtained, and the carbon base material comprises biomass carbon, resin carbon and fossil carbon; the mixing comprises the following steps: putting the carbon base material and potassium hydroxide into a mixer, and stirring at the rotating speed of 200-600rpm for 3-20 minutes; pressing the mixed material into a block body, and putting the block body into a microwave calcining furnace for calcining treatment; and the calcined block is subjected to acid pickling and drying treatment. The cost and the performance can be adjusted as required by using diversified raw material sources, and the trend of green chemistry and sustainable development is met.

The invention relates to the technical field of food packaging, in particular to an antibacterial fresh-keeping packaging film for food packaging and a preparation method of the antibacterial fresh-keeping packaging film, and aims at solving the problems that a traditional food packaging film is insufficient in antibacterial performance and not ideal in fresh-keeping effect. According to the preparation method, polyethylene resin and polylactic resin are taken as main raw materials, so that the packaging film is endowed with excellent mechanical property and barrier property, the oxidation process of food can be slowed down, the damage of oxygen to the food is reduced, the loss of nutritional ingredients in the food is prevented, and the freshness and nutritional ingredients of the food can be effectively kept; the modified nano-silver particles are added into the food, so that the growth and metabolic activities of microorganisms such as various bacteria and molds can be effectively inhibited, the risk that the food is polluted by the microorganisms is remarkably reduced, the deterioration of the food due to microbial decomposition is avoided, and the food quality is improved. Therefore, the quality and taste of the food are better maintained, and the shelf life of the food is prolonged.

The invention relates to a calcium-based solid waste residue slurry desulfurizer, a preparation method, a desulfurization method and a soil remediation agent, and belongs to the technical field of solid waste utilization. The method comprises the following steps: carrying out sedimentation treatment on calcium-based solid waste residue slurry to obtain a calcium-based solid waste residue slurry reaction solution; adding a phase change inhibitor into the calcium-based solid waste residue slurry reaction liquid to obtain mixed slurry; and carrying out solid-liquid separation on the mixed slurry to obtain a solid-phase substance, mixing the solid-phase substance with water, and adding a conditioning agent to obtain the calcium-based solid waste residue slurry desulfurizer. The desulfurizer can be used for desulfurization reaction to obtain a desulfurization solution and desulfurization solid slag; carrying out solid-liquid separation on the desulfurization solution after neutralization reaction to obtain washing water filtrate and secondary desulfurization solid residues; and preparing the soil ecological restoration agent from the desulfurized solid residues and the secondary desulfurized solid residues. The desulfurizer is prepared from the calcium-based solid waste residue slurry discharged by aluminum oxide, alkali resources are recycled, the loss of aluminum oxide is reduced, the desulfurizer is used for flue gas desulfurization, the purpose of resource utilization of solid waste is achieved, and the desulfurizer has the value and significance of reducing pollution and carbon and achieving synergistic interaction.

The invention discloses an intelligent shoebox capable of drying, decomposing and filtering waste gas, the intelligent shoebox is provided with a drying part and a gas treatment part, and during drying, drying gas is treated through the gas treatment part so as to remove formaldehyde generated by drying shoes. According to the shoe drying device, the air pumping device sucks outside air and pressurizes the outside air, the pressurized air is conveyed to the temporary storage bin through the valve control and heated to 30-50 DEG C in the temporary storage bin through the heating device, and then the heated air is conveyed into the placing cavity through the pipeline under the control of the valve to dry shoes in the placing cavity; during drying, when gas enters the first waste gas treatment device through the purification pipeline, formaldehyde in the gas is decomposed into carbon dioxide and water under the action of an ultraviolet lamp and titanium dioxide, and hydrogen peroxide is added through the reagent liquid adding device in the reaction process to promote the oxidation process of the formaldehyde, so that the formaldehyde in the gas is removed; water generated by removal overflows into the first cavity, and other substances contained in the gas are adsorbed by activated carbon in the second cavity.

The utility model provides an aluminum alloy part oxidation device, belongs to the technical field of material surface treatment, and aims to solve the problem that the oxidation effect of an aluminum alloy part is influenced by non-uniform electrolyte caused by effective component sedimentation due to long-time standing of the electrolyte of the conventional aluminum alloy part oxidation device in the anodic oxidation process. The electrolyte box is of a rectangular box-shaped structure; the gear set shell is fixedly arranged at the upper end of the front end surface of the electrolyte box; the reciprocating driving motor is fixedly arranged on the left end face of the gear set shell; the spring limiting blocks are arranged on the upper end surfaces of the two cross beams of the pendant bracket; the reciprocating rotating assembly is arranged in the gear set shell; and the hanging frame fixing assembly is arranged at the position of the hanging piece support. The device has the comprehensive advantages that the electrolyte components are kept stable and uniform, and the oxidation process is faster and more efficient.

The invention provides a stable slow-release antioxidant skin care composition emulsion as well as a preparation method and application thereof, and belongs to the technical field of cosmetics. The stable slow-release antioxidant skin care composition emulsion provided by the invention is prepared from the following components in percentage by mass: 1.2 to 2.5 percent of resveratrol-ATP (adenosine triphosphate) nanoparticle compound, 1.0 to 3.0 percent of chitosan microcapsule, 0.8 to 2.3 percent of active component, 7.2 to 14 percent of stable component and the balance of nano bubble water, the active components comprise tea tree oil, sodium hyaluronate and beta-glucan; the stable component comprises glycerol, ethanol and carbomer; the resveratrol-ATP nano-particle compound and the tea tree oil are coated in the chitosan microcapsule. The result of the embodiment shows that the antioxidant skin care composition emulsion has a very good antioxidant effect on dopa molecules, so that the oxidation synthesis of melanin is obviously inhibited, and the antioxidant skin care composition emulsion can promote the growth of cells and is beneficial to eliminating scars.

The invention relates to the technical field of pond oxygenation, in particular to a pond oxygenation device which comprises an oxygen conveyor, a hose communicated with the oxygen conveyor, a conveying channel connected with the hose and pipelines arranged on the outer wall of the conveying channel in an array mode. Openings in the two ends of the pipeline extend into the conveying channel. The tail purification pond has the beneficial effects that the microporous aeration device is additionally arranged at the bottom of the tail purification pond, corresponding nanotubes and hoses are arranged, dissolved oxygen at the bottom of the pond is increased, water flow rotation and upper and lower water layer exchange are caused, decomposition of pollutants such as COD, nitrogen and phosphorus in water is promoted, oxidation of ammonia nitrogen, nitrite and hydrogen sulfide at the bottom is accelerated, and growth of harmful microorganisms at the bottom is inhibited; the pond water environment, especially the pond bottom anoxic environment, is improved, and the stability of the water quality of the aquaculture pond is ensured.

This invention provides a liquid metal-based thermal grease, its preparation method, and its application. The liquid metal-based thermal grease comprises the following raw materials in parts by weight: 100 parts liquid metal, 2-5 parts silicone oil, 0.1-20 parts thermally conductive powder filler, and 0.1-3 parts other additives. The high-reliability liquid metal-based thermal grease provided by this invention possesses excellent high thermal conductivity, high processability, and high reliability. It can replace traditional thermal grease to solve the heat dissipation and cooling problem of high-power chips, thereby extending the lifespan of electronic products.

The invention provides a method for detecting whether a wet process is healthy or not. The method comprises the steps that S1, a clean blank wafer is provided; s2, carrying out a wet process on the front surface of the wafer, wherein a solvent of the wet process contains a sulfur element; s3, performing wet processing on the back surface of the wafer, wherein a solvent for wet processing does not contain sulfur element; s4, performing defect scanning on the front surface of the wafer to obtain a first scanning result; s5, judging whether aggregation defects exist in the first scanning result or not; if yes, the wet process is not healthy, and if not, the wet process is healthy. According to the method and the device, the presence or absence of the sulfur element residue is judged by judging the presence or absence of the aggregated defect on the front surface of the wafer, so that the aim of detecting whether the wet process is healthy or not is fulfilled, the unhealthy wet process can be optimized, and the performance and the reliability of the device are improved.

This invention discloses a method for the biological drying of sludge, comprising the following steps: baking biomass materials, mixing the resulting baked product with sludge, biochar materials, and a conditioner for biological drying, thereby completing the sludge drying process. In this invention, by biologically drying the mixture of baked product, sludge, biochar materials, and conditioner, not only can the self-generated heat within the system be used to effectively dewater the sludge in a very short time, but the bioavailability of the microbial carbon source can also be improved, effectively reducing the generation of polluting gases. This method can effectively reduce the emission of polluting gases while achieving rapid dewatering. It has advantages such as simple process, low treatment cost, low energy consumption, high drying efficiency, good dewatering effect, low polluting gas production, and low content of toxic and harmful components in the dried product. It can solve the problems of biomass resource waste and pollution, achieve sludge reduction and resource utilization, and has high returns and good application prospects.

The invention relates to the technical field of waste resource utilization, and discloses a coupling type system and method for preparing copper powder through kitchen waste gasification-hydro-thermal synthesis, and a coupling reaction device in the system comprises a supercritical water gasification module and a supercritical hydro-thermal synthesis module which are sequentially arranged in a sleeving mode from outside to inside; a palladium membrane is arranged between the supercritical water gasification module and the supercritical hydrothermal synthesis module; the outer side wall of the supercritical water gasification module is coated with a heating unit; according to the invention, a supercritical water gasification reactor and a supercritical hydrothermal synthesis reactor are integrated together through a sleeve structure; pure hydrogen is separated from gasification products in the supercritical water gasification module through a palladium membrane, an expensive chemical reducing agent is replaced, effective utilization of kitchen waste slurry is effectively improved, and the utilization rate of conversion from waste to resources is achieved. And meanwhile, pure hydrogen is separated by using a palladium membrane and enters a supercritical hydrothermal synthesis module, so that introduction of impurities is avoided, and preparation of high-purity superfine copper powder can be realized.

The application discloses a creep-resistant die-casting rare earth magnesium alloy with high strength and high fluidity, and a preparation method and application thereof. The application belongs to the field of die-casting magnesium alloys. The magnesium alloy comprises, in percentage by mass, Al: 4.8-7.2%, La: 3.0-4.2%, Sm: 1.2-2.0%, Y: 0.4-1.2%, Mn: 0.1-0.6%, Te: 0.01-0.1%, Bi: 0.01-0.5%, and the balance of Mg and inevitable impurity elements. The application significantly refines the structure of the magnesium alloy by optimizing the alloy composition, changes the composition, distribution and morphology of intermetallic compounds in the alloy, simultaneously generates Al-Te phases stable at high temperatures, improves the mechanical properties and creep resistance of the magnesium alloy, and further improves the die-casting fluidity of the magnesium alloy, so as to meet the requirements of large-scale integrated design automobile parts.

According to the technical scheme, the heating device for asphalt production is characterized in that a box body is arranged, a top plate is arranged in the box body, a balance pipe is arranged on the top face of the top plate, the balance pipe penetrates through the top face of the top plate, the balance pipe is of an L-shaped tubular structure, a buffer pipe is arranged in the balance pipe in a sleeved mode, and the buffer pipe is connected with the top face of the top plate. A water absorption bag is arranged in the buffer pipe in a sleeved mode, a first communicating pipe is arranged on the outer wall face of the buffer pipe in a sleeved mode, an iron wire net is fixedly installed in the first communicating pipe, and through the L-shaped design of the balance pipe, potential safety hazards caused by smoke backflow of asphalt can be avoided during internal and external air exchange; on one hand, the device can be matched with the water absorption bag, oxygen and moisture contained when external gas enters are prevented from being combined with internal high-temperature asphalt, asphalt oxidation is enhanced, on the other hand, iron and high-temperature asphalt smoke can be subjected to a reduction reaction, and simple harmless treatment is conducted on the high-temperature asphalt smoke.

This invention provides a method for recycling lithium manganese iron phosphate waste. The recycling method includes the following steps: (1) mixing lithium manganese iron phosphate waste with a first acid solution, introducing sulfur dioxide and oxygen, and performing oxidative leaching to obtain a leaching slurry; (2) subjecting the leaching slurry to copper removal treatment to obtain leaching residue and leaching solution; (3) mixing the leaching residue from step (2) with a second acid solution, adjusting the pH value to perform a first precipitation reaction to obtain manganese iron phosphate; and subjecting the leaching solution from step (2) to lithium extraction treatment to obtain purified lithium salt. The recycling method provided by this invention has a better oxidation effect, does not introduce a large amount of cationic impurities, can realize the full-component recovery of lithium manganese iron phosphate battery cathode materials, and can obtain battery-grade purified lithium salt materials and the precursor manganese iron phosphate products required for battery-grade lithium manganese iron phosphate cathode materials; and the process cost is low, which improves the added value of the products and better meets the actual production needs.

The present invention proposes an improved method for extracting humic substances from coal by oxidation, the method comprising a sonication grinding step before the oxidation step, the oxidation step being carried out in the presence of an oxidizing agent under irradiation with ultraviolet light.

The invention belongs to the technical field of energy conversion and storage devices, and particularly discloses an all-solid-state optical energy storage integrated device and a preparation method and application thereof. The all-solid-state optical energy storage integrated device sequentially comprises an energy storage electrode, an energy storage all-solid-state electrolyte, a compatible electrode, a photoelectric conversion all-solid-state electrolyte and a dye-sensitized photoanode from bottom to top, wherein the compatible electrode comprises foamed nickel and a carbon-sulfur composite material coated on the foamed nickel, the preparation raw materials of the energy storage all-solid-state electrolyte comprise polyoxyethylene, lithium bis (trifluoromethanesulfonimide) and beta-cyclodextrin, and the preparation raw materials of the photoelectric conversion all-solid-state electrolyte comprise polyoxyethylene, elemental iodine, lithium iodide and beta-cyclodextrin. And the energy storage electrode is a lithium metal anode. The photoelectric conversion unit and the energy storage unit are integrated in one device, efficient light energy conversion and electric energy storage are achieved, and good energy conversion efficiency and cycling stability are achieved.

The mixer comprises a plurality of raw material barrels, a plurality of peristaltic pumps, a controller and a mixing barrel, a feed port is formed in the top of the raw material barrel, and a discharge port is formed in the bottom; different wine bodies are respectively arranged in the plurality of raw material barrels; a pipeline is arranged at the discharge hole; the peristaltic pump is arranged on the pipeline; the controller is electrically connected with the peristaltic pumps and controls the pumping speed of the peristaltic pumps. The mixing barrel is arranged below the raw material barrel; one end of a pipeline connected with the discharge hole is communicated with the interior of the mixing barrel; a stirring device is arranged in the mixing barrel; and a discharge opening is formed in the bottom of the mixing barrel. The problem that the matching control precision is insufficient due to the fact that wine blending is controlled through an adjusting valve is solved.

The utility model provides a portable coffee storage mechanism and a coffee powder box, the portable coffee storage mechanism comprises a top cover assembly, a first sealing piece, a storage container and a lower bottom cover; the top cover assembly is in threaded connection with the first end of the storage container, the lower bottom cover is connected to the second end of the storage container, a containing cavity is formed in the storage container and used for storing coffee powder, a groove is formed in the periphery of the top cover assembly, and the first sealing piece is arranged in the groove and tightly attached to the inner wall of the storage container in a surrounding mode. The groove is formed in the periphery of the top cover assembly, the first sealing piece is arranged in the groove, meanwhile, the first sealing piece is tightly attached to the inner wall of the storage container in a surrounding mode, and when the top cover assembly is connected to one end of the storage container through the threads, the first sealing piece is arranged in the groove of the top cover assembly; therefore, air and moisture are effectively prevented from entering the containing cavity of the storage container, and the freshness of the coffee powder placed in the containing cavity is guaranteed.

This invention discloses the application of CRISPLD1 as a target in the preparation of drugs for the prevention or treatment of obesity and related metabolic disorders. CRISPLD1 can directly bind to the α subunit of the mitochondrial trifunctional protein HADHA, enhancing the activity of HADHA's acyl-CoA hydratase and 3-hydroxyacyl-CoA dehydrogenase, promoting long-chain fatty acid β-oxidation, and improving fat accumulation and metabolic disorders from the source of cellular energy metabolism. This invention provides multiple drug forms using CRISPLD1 and overexpression reagents. Compared with existing anti-obesity drugs, this invention has advantages such as novel mechanism of action, long-lasting efficacy, and high safety, providing a completely new strategy for the treatment of obesity and related metabolic diseases.

The utility model discloses a rotary kiln graphite block sealing device belongs to smelting equipment technical field, including main body mechanism and limiting mechanism, the main body mechanism includes annular support and graphite block, the outside equidistance distribution fixed connection of annular support has Y shape limiting piece, the graphite block annular array distribution is in the outside of annular support, the limiting mechanism includes limiting ring and elastic part, the limiting ring is set up in the outside of graphite block, the utility model discloses a Y shape limiting piece cooperation annular support is limited to install the graphite block, makes graphite block when floating that is influenced by radial runout, will extrude the upper half of Y shape limiting piece, make it inwards contract extrusion elastic part to the graphite block is buffered to the graphite block, prevents graphite block floating and leads to the joint place to produce leakage, limiting ring cooperation fixed disc is shielded protection to the graphite block, prevents graphite block long -term exposure and leads to the acceleration oxidation.

The utility model relates to a sequential reaction device suitable for passive treatment of acid mine wastewater, which comprises a water storage tank, a neutralization reaction tank, an MOB reactor and an SRB reactor which are sequentially connected through a pipeline, the heights of liquid outlets of the water storage tank, the neutralization reaction tank, the MOB reactor and the SRB reactor are gradually reduced, and corresponding liquid inlets are respectively formed in the lower parts of the water storage tank, the neutralization reaction tank, the MOB reactor and the SRB reactor; corresponding reaction units are arranged in the neutralization reaction tank, the MOB reactor and the SRB reactor. According to the utility model, based on water quality characteristics, terrain and oxygen supply conditions are reasonably utilized, and the collected AMD is passively treated; manganese oxidizing bacteria are introduced, oxidation of Mn (II) is promoted by means of Mn (III / IV) manganese oxide generated by the manganese oxidizing bacteria, other heavy metal ions are adsorbed, the manganese removal efficiency is greatly improved, the heavy metal ions and sulfate radicals in the AMD are removed through combination with multi-stage treatment of a neutralization reaction tank and an SRB reactor, meanwhile, the pH of effluent is increased, and multi-stage purification of the AMD is completed; the method is especially suitable for acidic heavy metal mine wastewater with high manganese ion concentration.

This invention relates to the field of graphene and discloses a method for preparing highly dispersible graphene oxide with a high monolayer ratio at low temperatures. The method includes: S1: ball milling a mixture of graphite and activated carbon; S2: immersing the graphite / activated carbon mixture in an acidic solution containing hypochlorous acid and / or hypochlorite under light irradiation for a pre-oxidation reaction to exfoliate the graphite into a monodisperse state; S3: oxidizing the product of reaction S2 in a concentrated sulfuric acid / perchloric acid mixed acid system; S4: diluting the product of reaction S3 with water and then introducing a ferrous salt for a reduction reaction; and finally, separating and washing to obtain a graphene oxide dispersion. This invention can prepare highly dispersible graphene oxide with a high monolayer ratio under low temperature and mild conditions. Furthermore, during the preparation process, this invention utilizes the synergistic effect of activated carbon and chloride ions to fully disrupt the large π bonds of the conjugated aromatic domains in graphite, thereby increasing the flexibility of the graphene sheets and reducing viscosity.

The invention belongs to the technical field of hard alloys, and particularly relates to a high-wear-resistance tungsten steel alloy and a preparation method thereof. The raw materials of the high-wear-resistance tungsten steel alloy comprise WC, Al-Sn-B nanometer oxide and a SiN / GO toughening phase, the tungsten steel alloy is designed to be of a gradient structure, the surface layer has hardness and wear resistance, the inner layer has good fracture toughness, WC is the main hard phase in the tungsten steel alloy, extremely high hardness and wear resistance are provided, and the high-wear-resistance tungsten steel alloy can be used for manufacturing the high-wear-resistance tungsten steel alloy. The Al-Sn-B nano oxide is added to form a sintering aid, so that the diffusion mass transfer process of WC in high-temperature solid-phase sintering is enhanced, the densification of the tungsten steel alloy is accelerated, and the fracture toughness of the tungsten steel alloy is improved by adding the SiN / GO toughening phase and utilizing a graphene toughening mechanism; the prepared high-wear-resistance tungsten steel alloy has excellent wear resistance and high-temperature oxidation resistance, and good toughness, strength and bending resistance.

The invention discloses a method for treating gas oxidation products in a coal oxidation process in an underground coal mine, and belongs to the technical field of fire prevention in the underground coal mine. The method comprises the following steps: firstly, installing a required system, wherein the required system comprises a regulation and control device, a micro-nano bubble generating device, a micro-nano bubble water spraying device, a pressurizing device, a gas product collecting device and a gas product processing device; the method comprises the following steps: collecting accumulated coal, preparing micro-nano bubble water, spraying the micro-nano bubble water to the accumulated coal, collecting gas oxidation products released after the accumulated coal is treated by the micro-nano bubble water through a gas product collecting device, enabling one part of the gas oxidation products to enter a micro-nano bubble generator, and enabling the other part of the gas oxidation products to enter a reaction tower. The micro-nano bubble water is used for humidifying accumulated coal, wetting and oxidizing the accumulated coal, the water content in the coal is increased, the speed of dissipating heat to the environment is increased, spontaneous combustion of the coal is prevented, and meanwhile gas oxidation products can be removed.

The invention belongs to the technical field of lithium battery electrolyte, and particularly relates to ultralow-temperature electrolyte suitable for a ternary high-specific-energy soft package lithium ion battery system. The invention provides an ultralow-temperature electrolyte suitable for a ternary high-specific-energy soft package lithium ion battery system. The ultralow-temperature electrolyte comprises a mixed organic solvent, a lithium salt and a functional additive, the mixed organic solvent contains linear carbonic ester with a low freezing point and linear carboxylic ester with a low freezing point; the mixed organic solvent also contains at least one of fluorinated carbonate and fluorinated carboxylic ester. Linear carbonic ester and linear carboxylic ester with low freezing points are adopted as solvents, carbonic ester solvents with high freezing points are replaced or partially replaced, the viscosity of the electrolyte is reduced, the Li < + > desolvation process is adjusted by adding fluorinated carbonic ester and fluorinated carboxylic ester, the oxidation resistance of the electrolyte is improved, and the SEI stability is considered. In addition, the low-temperature performance is improved in the aspects of improving the lithium ion conductivity, constructing a stable SEI film with high ion conductivity, accelerating interface reaction kinetics and the like.

The present invention addresses the problem of providing an Fe-Ni-Cr alloy for sheath pipes of sheathed heaters, said Fe-Ni-Cr alloy having excellent oxidation resistance, corrosion resistance and weldability and being able to be used in a wet high-temperature environment. The problem is solved by an Fe-Ni-Cr alloy which contains, in mass%, from 0.001% to 0.050% of C, from 0.18% to 1.00% of Si, from 0.20% to 0.80% of Mn, 0.030% or less of P, 0.0001% to 0.0020% of S, from 12% to 21% of Ni, from 18% to 24% of Cr, from 0.20% to 1.50% of Mo, 0.30% or less of Cu, from 0.10% to 0.70% ofAl, from 0.10% to 0.70% of Ti, from 0.002% to 0.015% of N, from 0.0001% to 0.0010% of B, from 0.0002% to 0.0030% of O, 0.002% or less of Ca, and from 0.0010% to 0.0150% of REM in total, said REM being composed of one or more elements selected from among La, Ce and Y, with the balance being made up of Fe and unavoidable impurities, and which satisfies formulae 1 and 2. Formula 1: 0.575 x Ni + 1.25 x Cr + 3.43 x Mo - 39 xP - 5.3 xAl - 641 xREM- 1018 x O ≥ 20.0 Formula 2: 1.5 x Mn + 41.3 x Si + 1469 x S - 1.67 xAl-1.34 x Ti - 150 x O - 620 x REM≥ 5.0 Selected figure: Fig. 1