23 results about "Spontaneous heating" patented technology

This invention discloses a rapid catalyst preparation method based on high-frequency alternating magnetic field atmosphere heating, belonging to the field of rapid catalyst preparation technology, including the following steps: Step 1: Support pretreatment and precursor loading: After surface modification pretreatment of the metal support, the catalyst precursor is uniformly loaded onto the surface of the metal support using precision coating technology; Step 2: Modular coil adaptation: A suitable modular induction coil assembly is selected according to the geometry of the metal support, and the metal support loaded with the precursor is fixed in the central region of the coil. The rapid catalyst preparation method based on high-frequency alternating magnetic field atmosphere heating proposed in this invention achieves spontaneous heating inside the metal support through induction heating, without the need for external furnace contact. This not only avoids the corrosion of equipment by corrosive precursor gases, but also significantly reduces dependence on large high-temperature furnace equipment, shortens the preparation cycle, and improves the safety and economy of the process.

The invention discloses a biochar-based metallurgical fossil raw material replaceable product and a preparation method thereof, and belongs to the technical field of bio-based fuel. The preparation method of the replaceable product comprises the following steps: firstly, uniformly mixing the bio-based carbon particle material, the adhesive and water, and then molding to obtain a solid mixture; drying the solid mixture, and curing the dried solid mixture in the atmosphere of enriched inert gas; and finally, carrying out first-stage cooling and second-stage cooling in sequence to prepare the replaceable product particles. In the drying treatment process, gas generated by drying treatment is sucked under negative pressure; and the sucked gas is subjected to dust removal, VOC removal and drying treatment in sequence, and then inert gas is prepared and used for providing inert gas for curing treatment. According to the invention, free radical components of the material and spontaneous heating and spontaneous combustion risks caused by the free radical components can be reduced.

To provide a method for producing a biomass fuel in which spontaneous heating properties are suppressed.SOLUTION: A method for producing a biomass fuel includes the steps of: obtaining a semi-carbonized material having a carbon content of less than 61 mass% by heating biomass to semi-carbonize the same; and oxidizing the semi-carbonized material by heating the same under the conditions of an oxygen concentration of 3 vol.% or more and 13 vol.% or less, a temperature of 120°C or higher and 220°C or lower, and a time of 12 minutes or longer and 240 minutes or shorter.SELECTED DRAWING: None

The invention provides a resistance self-heating type solid hydrogen storage reactor, which belongs to the technical field of hydrogen energy storage and comprises a solid hydrogen storage component, a heat management component and an electric heating component. The porous solid hydrogen storage material is a magnesium-based composite material doped with coal ash and slag, has a porous structure and intrinsic conductivity, and realizes rapid and uniform spontaneous heating through a Joule effect; the heat exchange plates and the hydrogen storage materials are alternately distributed, a circulating pump drives a heat exchange medium and a phase change material storage tank to form closed-loop heat management, and heat recovery in the hydrogen storage stage and heat supply in the hydrogen desorption stage are achieved; the electric heating unit supplements Joule heat through an external power supply, and the operation state is controlled in real time in combination with the temperature regulation and control module. The problems of thermal response lag, uneven temperature and high energy consumption of traditional solid hydrogen storage are solved, the hydrogen storage / desorption rate, the cycle stability and the energy utilization efficiency are remarkably improved, and the method is suitable for large-scale long-period hydrogen storage of renewable energy sources.

The invention provides a spontaneous heating composite synergist as well as a preparation method and application thereof. The spontaneous heating composite synergist is prepared from the following components in parts by weight: 20 to 40 parts of a component A, 20 to 40 parts of a component B and 30 to 40 parts of a component C, wherein the component A comprises an alkali metal salt inner core and a first silane coupling agent and aluminate coupling agent composite shell layer which coats the outer surface of the alkali metal salt inner core through chemical bonds; the component B comprises an alkaline earth metal oxide core and a second silane coupling agent shell layer which coats the outer surface of the alkaline earth metal oxide core through a chemical bond; and the component C comprises an active metal core and a third silane coupling agent shell layer coated on the outer surface of the active metal core through a chemical bond. The self-heating composite synergist is subsequently applied to in-situ gasification, in-situ dry distillation, superheated steam gasification and supercritical water gasification of deep coal and has a relatively good heat-increasing synergistic effect.

The present application relates to the field of chemical heat generating material, in particular to a built-in self-heating food heating agent and a preparation method thereof.The built-in self-heating food heating agent provided by the present application comprises a solid phase reaction agent, the solid phase reaction agent comprises 65-85 parts of magnesium powder, 10-30 parts of iron powder and 2-10 parts of modified auxiliary agent by mass fraction; a liquid phase reaction agent, the liquid phase reaction agent comprises 200-300 parts of a salt aqueous solution with a concentration of 5%-20% w / w by mass fraction.By separating the hygroscopic electrolyte salt which is easy to cause reaction from the solid phase reaction agent completely, the solution is separately packaged.The solid phase reaction agent is only a mixture of magnesium powder, iron powder and modified auxiliary agent, and is not sensitive to air humidity without contacting the salt solution, which fundamentally eliminates the internal micro-battery reaction caused by salt moisture absorption, completely eliminates the safety hazards such as spontaneous heating, bag swelling and explosion during storage and transportation, and significantly prolongs the shelf life of the product.

An energy storage spring plate comprises a single plate, and the single plate is a metal plate formed by combining a plurality of convex structures and concave structures. And the convex structures and the concave structures are continuously and repeatedly arranged. According to the energy storage spring plate, the extrusion between the convex structures and the concave structures in the single plate is mainly utilized to realize the plastic deformation of the single plate, in the deformation process, the elastic potential energy generated by the single plate realizes the self energy storage, the storage time is long, the output is diversified, the influence of the external environment temperature is avoided, and the stability and reliability are realized. The spring plate disclosed by the invention has the advantages of simple structure, no chemical action, self-heating and other defects, safety in use, low maintenance cost, and is particularly suitable for more appropriate storage of photovoltaic, wind energy and abandoned electricity of a power plant, electric energy is converted into rotational energy, then the rotational energy is converted into potential energy by a converter, and the spring plate disclosed by the invention is used for storing; potential energy can be converted into rotating energy through the converter and then converted into electric energy for use.

The invention discloses a fabricated self-heating intelligent wall system and a control method thereof, and belongs to the technical field of intelligent walls, the fabricated self-heating intelligent wall system comprises a composite wall module, an intelligent temperature control system and a pipeline integration interface, the composite wall module is formed by conformally compounding a base layer structure layer, a multifunctional composite sandwich structure and a decorative surface layer, each composite wall module comprises a honeycomb aluminum core layer, a graphene heat conduction layer, a flexible heat conduction medium and a flexible ceramic heat conduction film, and each multifunctional composite sandwich structure comprises a spontaneous heating layer, a PCM phase change energy storage layer and a heat preservation sealing layer. Rapid and uniform heating is achieved through the collaborative heat conduction design of the graphene circuit and the honeycomb aluminum substrate, the water and electricity pipelines and the decoration surface layer are integrated in combination with the BIM prefabrication technology, the intelligent temperature control system predicts the heat load based on machine learning, the heating power of all areas is dynamically adjusted, the limitation of step-by-step implementation of traditional decoration and heating is broken through, and the construction efficiency is improved. And a novel wall-mounted instant-heating industrial construction mode is realized.

The invention belongs to the technical field of power equipment state monitoring, and discloses a box-type substation operation state early warning method based on multi-modal data. According to the method, infrared thermal imaging, load current and temperature permeation multi-mode data are firstly collected, complete box body internal space thermal field distribution is constructed through a heat conduction inversion and calibration technology, the thermal interaction flux between devices and the spontaneous heating power of each device are accurately calculated, and accurate evaluation of the comprehensive thermal load is achieved. According to the method, thermal stress accumulation rate calculation is innovatively introduced, the insulation residual life consumption rate is evaluated in combination with insulation material characteristics, key early warning target equipment is identified through electrical topology analysis, and finally scientific grading early warning signals are generated based on life estimated values and influence ranges in a two-dimensional mode. The method accurately quantifies the thermal state and life consumption process of the equipment, improves the accuracy and pertinence of early warning, effectively reduces the failure rate, prolongs the service life of the equipment, and improves the reliability of a power distribution system.

The invention provides an environment self-adaptive lightning arrester, and belongs to the technical field of lightning arresters, the environment self-adaptive lightning arrester comprises a core body, a wiring end and a grounding end, the outer side of the core body is provided with an isolation layer, and the outer side of the isolation layer is provided with a resistance ring; the wiring end comprises a fixing piece, a containing groove is formed in the fixing piece, the wiring end is provided with a movable conductive assembly, and connection or disconnection of a discharge path of the resistance ring is automatically controlled through environment temperature change or current induction so that self-adaptive discharge can be achieved; through the synergistic effect of the temperature-sensitive gas pressure change and the elastic piece, a discharge path is automatically adjusted, a conductive water film formed in the ice melting period under the ice and snow climate is effectively dealt with, surface flashover is prevented, meanwhile, spontaneous heating ice melting is achieved through the current heat effect of the resistance ring, and the reliability and stability of the lightning arrester in the low-temperature environment are improved.

The invention relates to a process for producing a fire protection system, comprising metering a comminuted silicon dioxide raw material and a granulated alkali metal hydroxide into a reactor; adding water in the reactor and mixing the ingredients, resulting in spontaneous heating, until a hot semifinished product is obtained; storing this semifinished product until a homogeneous colloidal aqueous dispersion (4) of the alkali metal hydrosilicate is obtained; applying the homogeneous colloidal aqueous dispersion (4) and a reinforcement (3) between a first substrate (1) and a second substrate (7); pressing or hot pressing the fire protection system into a three-dimensional shape and / or to form a rigid article. The invention additionally relates to a ready-to-use fire protection system comprising a dispersion (4) of an alkali metal hydrosilicate and at least a first substrate (1) and a second substrate (7), between which the dispersion (4) and at least one layer of a reinforcement (3) are provided, wherein the fire protection system is provided in a three-dimensional shape and / or in the form of a rigid article by pressing or hot pressing.

The present invention discloses a self-heating aerobic digestion technology for high-concentration organic waste liquid, which belongs to the technical field of high-concentration organic waste liquid treatment and resource utilization. The present invention utilizes extreme thermophilic bacteria to compound targeted functional bacterial agents, mixes high-concentration organic waste liquid (SS is about 100g / L-150g / L) with targeted functional bacterial agents, and maintains a digestion temperature of more than 80°C for at least 5 days through heat assistance + spontaneous heating during the reproduction and metabolism of extreme thermophilic bacteria. The digestion products can be rendered harmless, reduced in quantity and recycled in 7-10 days, and carbon emissions in the treatment process can be reduced by 15-30%. The present invention subverts the technical bottleneck of traditional extreme thermophilic bacteria for aerobic fermentation of organic waste, saves energy, and realizes high-speed stabilization of high-concentration organic waste liquid.

The utility model relates to medical technology field discloses a kind of plaster components, plaster component includes: plaster paste, including sticking layer, medicine package and heating bag, sticking layer one side is provided with first viscose layer, medicine package is bonded to the side for contacting with skin of first viscose layer, heating bag is fixedly connected with sticking layer, heating bag is filled with spontaneous heating material that contact with air and generate heat;Packaging bag, it is wrapped in the outside of plaster paste, to isolate heating bag and air.The plaster component provided by the utility model is set to heating bag, to facilitate the local temperature of skin to be increased by heat effect, be favorable to make skin pore open, enhance local blood circulation, and then make external medicine better be absorbed by skin and be used, reduce drug resource waste;And by setting packaging bag isolation heating bag and air, to prevent when not using plaster paste, spontaneous heating material in heating bag and air reaction heat generation.

The invention relates to a rolling spraying machine and a heating control method of the rolling spraying machine, and relates to the technical field of spraying equipment. A rolling spraying machine comprises an inner roller and further comprises a fixed outer roller, the inner roller is rotatably arranged in the fixed outer roller, an annular gap area is formed between the fixed outer roller and the inner roller, an induction coil is fixedly arranged on the outer wall of the fixed outer roller, an alternating magnetic field is generated when the induction coil is powered on, and the inner roller is driven by the induction coil to rotate. And the inner roller generates eddy current for spontaneous heating. The rolling spraying machine heating control method comprises the steps that material information is obtained; obtaining dynamic heating information required by the corresponding material according to the material information; the needed dynamic heating information is analyzed, and heating power information is sent to the eddy current heating control module according to the current moment; and the eddy current heating control module applies an alternating magnetic field with corresponding power intensity to the induction coil fixed on the fixed outer cylinder according to the obtained heating power information. The system has the advantages of being high in reliability, easy to maintain, high in energy efficiency and low in energy consumption.

The invention relates to the technical field of mechanical arm control, and provides a mechanical arm preheating method and system and a storage medium, and the mechanical arm preheating method comprises the following steps that S1, the pose of the tail end of a mechanical arm is fixed; s2, according to the statics equilibrium relation between the tail end of the mechanical arm and the mechanical arm joints, the preheating joint angle of each mechanical arm joint is obtained when the mechanical arm joints reach the first torque output state; and S3, the mechanical arm joint is controlled according to the preheating joint angle, so that a motor of the mechanical arm joint is subjected to stalling spontaneous heating. Motor stalling spontaneous heating of the mechanical arm joint can be achieved, a special external preheating device is not needed, and the preheating cost is low; moreover, the heat loss is less, and the heating efficiency of the lubricating grease is higher; without additional wiring, the problems of pulling and collision of additional lines are avoided, so that the normal work of the mechanical arm is prevented from being influenced.

A preparation method of ultra-micro carbon iron alloy material, high-carbon iron alloy blocks are pulverized, sprayed into a suspension roasting furnace in an oxygen-rich environment for spontaneous heating partial oxidation, the partially oxidized powder is cooled, and the carbon and oxygen element contents are detected, then the partially oxidized powder is mixed with un-oxidized high-carbon iron alloy powder according to the proportion, and the mixture is uniformly mixed, briquetted, and then put into a vacuum sintering furnace for deep decarburization and deoxidation, after the reaction is completed, the material in the furnace is cooled and discharged to obtain the ultra-micro carbon iron alloy material. The invention utilizes the combustible characteristics of elemental carbon and iron in high-carbon iron alloy material under certain conditions, accurately controls the decarburization and oxygenation conditions, and the material in the suspension state is not sintered, the decarburization is uniform without the need for secondary grinding, and no additional heat source is needed, thereby effectively reducing the production cost, improving the product quality, and producing the ultra-micro carbon iron alloy material after vacuum sintering.

The invention relates to the technical field of waste salt pyrolysis treatment, and discloses a self-heating type waste salt microwave pyrolysis system and method.The self-heating type waste salt microwave pyrolysis system comprises a pretreatment system, a conveying system, a drying device, a microwave pyrolysis furnace, a vibration screening device and a small ball recycling system; the pretreatment system comprises a waste salt raw material bin and a crusher; the conveying system comprises a raw material conveyor, a dry salt conveyor and a pyrolysis salt conveyor; the small ball recovery system comprises a heat storage small ball bin and a heat storage small ball conveyor; by adding the wave-absorbing material into the feed waste salt to prepare the ceramic heat storage balls, wave-absorbing spontaneous heating, heat storage conduction and uniform heating of the material are realized, gradient utilization and cyclic utilization of heat are realized, the operation is convenient, the original energy consumption required by pyrolysis of the system can be greatly reduced, and the economical efficiency of the pyrolysis system is improved.

The utility model discloses a medium-high frequency induction heating furnace with a combined heat preservation structure, which comprises a furnace shell, a graphite crucible arranged in the furnace shell, a heat preservation layer arranged on the outer side of the graphite crucible, and an induction heating coil arranged between the heat preservation layer and the furnace shell, a high-temperature porcelain pad is arranged between every two adjacent heat preservation cylinders. The heat preservation layer comprises at least two layers of heat preservation cylinders which are concentrically arranged, the sectional area of the single-layer heat preservation cylinder is reduced, the magnetic flux of the single heat preservation layer is reduced, and therefore induced current generated by the heat preservation cylinders is greatly reduced, and the risk of spontaneous heating of the heat preservation layer is reduced. The high-temperature porcelain pad is arranged between the two adjacent heat preservation cylinders, so that the two adjacent layers of heat preservation cylinders are insulated, and large current is prevented from being generated in the heat preservation cylinders.

The utility model belongs to the technical field of cold-resistant cables, and particularly relates to a cold-resistant computer cable for an intelligent oil well, which comprises a plurality of tin-coated copper wires which are twisted, and nickel-chromium alloy wires are embedded in the center of the tin-coated copper wires to form a conductor layer; the cable is sequentially provided with a conductor layer, a shielding layer, a heat storage layer, an insulating layer and a sheath layer from inside to outside. A phase change layer for absorbing heat and releasing heat is arranged in the heat storage layer, and a packaging layer for promoting heat conduction is wrapped on the outer side of the heat storage layer. According to the utility model, through the self-heating conductor, the shielding compression-resistant structure and the heat storage and release structure of the middle layer, the problems of cold resistance, oil stain resistance, interference resistance and mechanical protection of the cable in an oil well environment are comprehensively solved, and internal heat energy is fully utilized to maintain the operation temperature of the cable.

The invention discloses an asphalt concrete transport vehicle spontaneous heating and heat preservation covering film system and a control method thereof, and relates to the technical field of road construction material transportation, the asphalt concrete transport vehicle spontaneous heating and heat preservation covering film system comprises a composite film body, an energy recovery module, an intelligent control unit and a multi-source data acquisition module; the composite film body sequentially comprises a weather-proof waterproof layer, an electric heating function layer, a bionic honeycomb heat management layer and an aluminum foil reflecting layer from outside to inside. The method has the beneficial effects that through the phase change characteristic of the shape memory alloy of the bionic honeycomb heat management layer, the honeycomb units are closed to form a heat insulation air chamber in a low-temperature environment, the heat conductivity coefficient is reduced, the heat preservation efficiency is improved, and meanwhile the honeycomb units are triggered to expand in a high-temperature environment to form a vertical exhaust channel; the discharge efficiency of harmful gases such as benzopyrene is improved, and the contradiction between heat preservation and waste gas discharge is solved.

The utility model discloses raw material storage equipment for pet feed processing, which comprises a storage bin body, two rectangular reinforcing ribs are welded on the inner wall of the storage bin body at equal intervals, and the internal space of the storage bin body is divided into an upper storage space, a middle storage space and a lower storage space by the two rectangular reinforcing ribs. A ventilation drying system is arranged in the storage bin body and comprises a hollow pipe fixedly arranged at the vertical center line in the storage bin body, and air outlets are formed in the positions, located in the upper storage space, the middle storage space and the lower storage space, of the outer wall of the hollow pipe. According to the utility model, the hollow pipe can guide air to uniformly circulate in the storage bin, eliminate the phenomenon of over-high local temperature, prevent heat accumulation, reduce the risk of spontaneous heating and spontaneous combustion, ensure uniform distribution of temperature in a storage area, and can maintain proper storage temperature and prevent quality reduction caused by over-high temperature through regular monitoring and ventilation heat dissipation.

The invention discloses an induction heating fluidized bed device for low-temperature methane dry reforming and a methane dry reforming method. The induction heating fluidized bed device is sequentially provided with a gas inlet system for inputting raw materials, a heating fluidization system for reaction, a temperature measurement and control system and a product analysis system, non-contact heating is carried out through a magnetic field, eddy current loss is generated by a metal rod, heat is transferred to a bed material and gas, magnetic hysteresis loss is generated by a magnetic catalyst bed material, and particle spontaneous heating is achieved, so that the aim of indirect and direct coupling synergistic heating is achieved, and heating is more uniform and rapid; a thermocouple is used for temperature control, and an infrared thermometer is used for assisting temperature measurement; the device is applied to methane dry reforming, the rapid thermal response of induction heating and the heat and mass transfer characteristics of the fluidized bed are integrated, compared with a traditional resistance heating fluidized bed device, the higher product conversion rate and reaction rate are achieved, and the energy utilization efficiency is improved.