1884 results about "Electromagnetic heating" patented technology

The invention discloses an electromagnetic heating and heat preservation system for a wind power blade girder plate pultrusion die, and relates to the technical field of thermal field regulation and control, comprising the following steps: activating an electromagnetic coil array to generate an alternating magnetic field, synchronously starting a heat preservation layer device, and triggering a gradient heating mode when the temperature of the die reaches a preset threshold value; a mold temperature field is monitored in real time, the power of an electromagnetic coil and parameters of a heat preservation layer are dynamically adjusted, a target temperature gradient is established, an electromagnetic heating device and a mechanical traction device are linked in the pultrusion process, and heat dissipation control is triggered according to the material flowing state; and after heat dissipation control is completed, the main power source is cut off, the mode is switched to the waste heat recovery mode, mold waste heat is guided into the energy storage device, and the cooling rate is controlled. According to the method, accurate mode switching of electromagnetic heating from uniform temperature rise to gradient heating is achieved through cooperation of magnetic field activation and a gradient triggering mechanism, and the temperature gradient establishment speed and the morphological stability are effectively improved in cooperation with power regulation and control partition differentiation power instruction and thermal insulation layer parameter dynamic matching.

The invention relates to a low-energy-consumption sludge high-dryness dehydration low-temperature drying system and a control method thereof. A hydraulic high-pressure feeding pump is used for conveying conditioned sludge from a sludge tank to an ultrahigh-pressure double-diaphragm low-temperature drying all-in-one machine; in the ultrahigh-pressure double-diaphragm low-temperature drying all-in-one machine, heat energy is provided for the ultrahigh-pressure double-diaphragm low-temperature drying all-in-one machine through an electromagnetic heating device; meanwhile, a vacuum pump is started, water vapor generated in the dehydration process is pumped out by the vacuum pump and cooled through a condenser, and heat is recycled; and the dehydrated dry sludge is conveyed to a dry material bin for storage through a screw conveyer. The energy consumption can be obviously reduced, and the sludge dewatering efficiency can be improved; meanwhile, through automatic control and an optimized operation mode, the stability and continuity of sludge treatment are improved, manual intervention is reduced, and the treatment effect and the operation safety are ensured.

The invention relates to the technical field of data processing, in particular to an induction cooker data acquisition and processing system which comprises a power jump identification module, a response section correction module, a trend sampling analysis module, a temperature control abnormity judgment module and a working condition balance data calibration module. According to the method, the rate change value between the power sampling points in the operation period is calculated, the sections with obvious abrupt change characteristics are screened, and the power lag response is corrected in combination with the voltage change slope, so that the time offset between the control response and the electric signal change is effectively corrected; the temperature fluctuation trend and the temperature control deviation direction are analyzed on the basis of the correction sequence, a temperature control abnormal state label set is formed by matching current waveform symmetry characteristics, a basis is provided for output power adjustment according to the temperature rise rate, the adaptation capacity of data analysis to actual working conditions and the execution precision of a control strategy are improved, and the accuracy of data analysis is improved. And the stable operation capability of the electromagnetic heating equipment under the complex thermal load change is enhanced.

The invention relates to the technical field of chip encryption, in particular to an E-type effect amplifier electromagnetic heating method and system based on gallium nitride. The real-time resistance correction value is calculated by acquiring the real-time resistance data and the real-time temperature data and combining the working characteristic information and the ideal parameter information of the gallium nitride device, so that the temperature change of the gallium nitride device can be quickly responded, and then the resistance division subset and the temperature division subset are respectively acquired; a plurality of temperature-resistance correlation groups are obtained after permutation and combination, a data basis is provided for establishing a working voltage prediction model, then the working voltage prediction model is trained through historical data, and finally a real-time resistance correction value and a real-time temperature value are input into the corresponding working voltage prediction model to obtain a working voltage simulation value. And a circuit where the gallium nitride device is located is adjusted according to the working voltage analog value, so that the working voltage and the working current of the gallium nitride device are close to ideal values, and stable power output of the device is ensured.

The invention relates to a carbon dioxide capture integrated system which comprises a carbon dioxide lean flue gas rear-end treatment unit, a carbon dioxide rear-end treatment unit and a plurality of integrated modules connected in parallel, the integrated module comprises at least one reactor, each reactor comprises a conductive shell, a heating part and a reaction cavity used for containing a solid adsorption material, and the heating parts are arranged outside the conductive shells and conduct heating in an electromagnetic heating mode. The inner diameter of the reactor is 300-500 mm, and the height of the reactor is 2.5-3 times of the inner diameter. The reactor has an adsorption mode, a desorption mode and a shutdown mode which can be switched; the number of the integrated modules can be adjusted according to the carbon dioxide capturing requirement. According to the system, the installation number of the small integrated modules can be flexibly adjusted according to the carbon dioxide trapping requirement, the carbon dioxide trapping requirements of different scales are met, electromagnetic heating is adopted, rapid and uniform heating of the solid adsorption material is effectively achieved, the power consumption of the system is greatly reduced, and then the trapping efficiency and economical efficiency of the system are improved.

The invention discloses a rubber tire vulcanization molding process of an electromagnetic heating gas medium, which comprises the following steps: electromagnetic heating, a heat transfer medium and cyclic utilization of the gas medium, especially carbon dioxide gas; comprising the steps that a rubber tire blank is placed in a mold cavity of a mold wrapped by a lower hot plate, an upper hot plate and a mold sleeve, and a curing bladder formed by the rubber tire extends into a rubber tire blank ring; carbon dioxide gas is heated through the gas medium heating assembly to form a high-temperature carbon dioxide gas medium, an outer temperature heating cycle is established on the outer side of the rubber tire blank, and an inner temperature heating cycle is established on the inner side of the rubber tire blank; cooling and shaping after the vulcanization molding process requirement is met; and vacuumizing the curing bladder, opening the mold, and taking out the tire. According to the method, water is not needed, fossil energy such as coal and natural gas does not need to be consumed, generation of waste gas in the vulcanization process is greatly reduced, carbon dioxide gas which is not flammable, explosive and corrosion-free and has a high specific hot melting value is adopted as a heat transfer medium, recycling is achieved, and real energy conservation and environmental protection are achieved.

The invention belongs to the technical field of aluminum plate machining, and particularly relates to an aluminum plate longitudinal cutting device which comprises a supporting table, and a discharging roller and a collecting roller are arranged at the top of the supporting table. By arranging the induction coil, the first permanent magnet, the second permanent magnet and the electromagnetic heating plate, the aluminum plate which is not longitudinally cut is heated, the hardness and brittleness of the aluminum plate can be reduced, longitudinal cutting is smoother, the quality of finished products is improved, deformation of the aluminum plate is reduced during longitudinal cutting, and the cutting precision and stability are ensured; by arranging a fixing plate, a shaking plate, piezoelectric ceramic pieces, springs and the like, the two piezoelectric ceramic pieces are placed in a cutting gap of an aluminum plate, when a longitudinal cutter is abraded, the cutting gap can be enlarged, the shaking amplitude of the piezoelectric ceramic pieces in the cutting gap is increased under pushing of the first spring, output current is increased, and the cutting effect of the aluminum plate is improved. And the state of the longitudinal cutter can be conveniently monitored in real time for subsequent detection operation.

The invention discloses an anti-blocking peek extruder, and belongs to the technical field of plastic processing, the anti-blocking peek extruder comprises an extrusion cylinder, a main shaft and a driving mechanism, the right side of the extrusion cylinder is provided with an extrusion nozzle, the left side of the extrusion cylinder is provided with a linkage mechanism, and the extrusion cylinder is internally provided with a centrifugal mechanism and an electromagnetic heating mechanism. Through the synergistic effect of the linkage mechanism and the driving mechanism, dynamic sensing and self-adaptive adjustment of resistance in the extrusion process are achieved, the technical problem that a high-viscosity PEEK material is prone to blockage is effectively solved, the driving mechanism transmits power through meshing of a limiting groove and a limiting strip, heating power is automatically triggered to be increased when the resistance is increased, and the heating efficiency is improved. The melt flowability is ensured; the electromagnetic heating mechanism generates eddy current heating through relative movement of a permanent magnet and a coil, and the heating effect during high-speed extrusion is remarkably improved; the homogenizing mechanism monitors the material compaction degree in real time through a pressure sensor, the feeding speed is intelligently adjusted, and hollowing or overpressure blockage is avoided.

The present invention relates to the technical field of double hardness hammer heads, specifically to a manufacturing process of double hardness hammer heads, comprising: pouring molten steel into a sand mold after refining treatment, taking out the casting after cooling, and obtaining a rough hammer head; hanging the rough hammer head on a hanger and moving it into an insulation shell for normalizing heat treatment, and air cooling to room temperature; adjusting the working part of the rough hammer head to be located at the position of the electromagnetic heater of group A, heating the working part, then moving the working part down to the quenching oil, cooling the oil to room temperature, repeating the above operation, and performing cyclic quenching; removing the rough hammer head from the hanger, and performing surface treatment on the working part; hanging the rough hammer head after surface treatment on the hanger again, moving the working part to the position of the electromagnetic heater of group A, performing tempering heat treatment, and then moving it out of the insulation shell, air cooling to room temperature, and obtaining a double hardness hammer head. The present invention improves the overall quality of the working part of the hammer head through the cooperation of cyclic quenching / rare earth nitriding / tempering stress relief process.

The invention discloses a transmission shaft straightening device, and relates to the technical field of straightening machines, the transmission shaft straightening device comprises a rack and a workbench connected to the rack, the rack is further provided with a pressing cylinder used for straightening a transmission shaft, and the lower portion of the pressing cylinder is connected with a pressing head; a bearing table used for bearing straightening pressure of the transmission shaft, a heating assembly and two positioning assemblies used for clamping the end of the transmission shaft are installed on the workbench, the heating assembly is arranged, and the transmission shaft is preheated before being straightened, so that the metal structure of the heated part of the transmission shaft is softened. In the straightening process, the connecting state of the two electromagnetic heating pipes is automatically closed according to the downward pressing degree of the transmission shaft, the position of a pressing head is avoided, due to the fact that the two electromagnetic heating pipes in the heating assembly heat the outer wall of the transmission shaft in advance, when the transmission shaft is pressed and straightened, the metal structure of the transmission shaft is prone to plastic deformation, and the straightening effect is better. Therefore, the straightening effect is obviously improved.

The multifunctional cooking utensil comprises a cooking machine body, the cooking machine body is provided with a first partition plate and a partition plate, and the partition plate divides the interior of the cooking machine body into a first cavity and a second cavity; the first electromagnetic heating assembly comprises a first wire coil and a first electromagnetic coil, and the first wire coil is installed in the first cavity; the second electromagnetic heating assembly comprises a driving part, a heat conduction fan blade, a second wire coil and a second electromagnetic coil; the second wire coil is installed above the heat conduction fan blades, and the second electromagnetic coil is arranged on the second wire coil and heats the heat conduction fan blades after being powered on. The first electromagnetic heating assembly and the second electromagnetic heating assembly are used for heating up and down, up-down cooking is achieved, the second electromagnetic heating assembly directly heats the flow guide fan blades, flow is guided in the rotating process, and therefore heat is evenly distributed, and the heating efficiency is higher.

The invention relates to the technical field of forming machine tools, in particular to a heating and ventilation pipeline production device which comprises a machining frame, a machining table is fixed to the top of the machining frame, and a bending structure is installed on the machining table; the bending structure rotates at a horizontal angle to bend the heating and ventilation pipeline at an angle of 300 degrees; a feeding structure is installed on the right side face of the machining table. Automatic feeding and bending are linked, the feeding structure achieves automatic feeding through 90-degree circulating rotation and is in seamless connection with the bending structure, manual intervention is reduced, the production takt is greatly improved, an electric hydraulic rod drives feeding and bending actions at the same time, a transmission chain is simplified, the response speed is increased, heating and cleaning are rapid, and the production efficiency is improved. The electromagnetic heater can complete pipeline heating within seconds, compared with a traditional flame heating or resistance furnace, the efficiency is higher, the cleaning brush is directly linked to remove zinc oxide powder after heating, secondary treatment is avoided, the overall production efficiency is improved by 30%-50%, and the device is suitable for large-scale continuous production.

The invention discloses a control method of a cooking utensil and the cooking utensil. The cooking utensil comprises an electromagnetic heating device, a detection device and a control device, the electromagnetic heating device is used for conducting electromagnetic heating on a pot, and the detection device is used for detecting relevant parameters of the distance between the pot and the electromagnetic heating device. The control device is electrically connected with the electromagnetic heating device and the detection device; the control method of the cooking utensil comprises the following steps: receiving related parameters of the distance between the cooker and the electromagnetic heating device detected by a detection device; when the distance related parameters meet a first preset condition, it is judged that the pot is in a pot throwing state; when the pot is in the pot throwing state, the electromagnetic heating device is controlled to work at the pot throwing power matched with the pot throwing state. The problem that the cooking effect is affected due to the fact that the pot is almost in a heating stopping state in the pot throwing process due to repeated pot throwing in a short time is solved.

The invention relates to the technical field of electromagnetic heating temperature rise uniformity optimization, and discloses a train frozen coal induction heating temperature rise uniformity optimization method based on a response surface method and multi-parameter optimization. A second-order polynomial response surface model is designed and established by adopting a central composite test, an axisymmetric coil layout based on a first constant parameterization linear dynamic tolerance sequence is designed, and temperature uniformity is represented by sample standard deviation by applying an NSGA-II multi-objective optimization algorithm under the condition that thawing temperature constraints are met. And carrying out Pareto optimization by taking temperature sample standard deviation minimization and average temperature maximization as targets, and finally determining an optimal parameter combination through a TOPSIS decision method. According to simulation verification, the method can effectively improve the uniformity of the electromagnetic heating temperature field of the inner surface of the frozen coal carriage, and a theoretical basis is provided for engineering application.

The utility model discloses a lightning stroke protection circuit of an electromagnetic heating device, which comprises an over-current, over-voltage and interference suppression circuit, a rectification filter circuit and a resonance heating circuit which are connected in sequence, the over-current, over-voltage and interference suppression circuit comprises a fuse FS01, a piezoresistor RZ01, a piezoresistor RZ02, a filter capacitor CX01 and a filter inductor L1, wherein the AC-L of the alternating current is sequentially connected with the fuse FS01 and the piezoresistor RZ01 in series to return to the AC-N, the AC-L of the alternating current is connected with the filter inductor L01 and the piezoresistor RZ02 in series to return to the AC-N, and the filter capacitor CX01 is connected with the piezoresistor RZ02 in parallel; the resonance heating circuit comprises a wire coil, a resonance capacitor CXZ30, an IGBT 30 and a TVS tube group. According to the utility model, two groups of piezoresistors are adopted in the overcurrent, overvoltage and interference suppression circuit, and a filter inductor is arranged in front, so that the protection response speed is improved, the effects of reducing voltage and clamping high voltage are achieved, the lightning stroke protection on a bridge rectifier is improved, and the IGBT of the resonance heating circuit is connected in parallel with a TVS tube group, so that the lightning stroke protection on the IGBT is improved, and the service life of the resonance heating circuit is prolonged. Therefore, the overall lightning protection of the electromagnetic heating device is improved.

The utility model provides a wear-resistant antiskid bolt fastener forging device, which relates to the technical field of bolt fastener forging processing, and comprises a shell, a heating mechanism is arranged on the shell, the heating mechanism comprises a rectangular hole, a controller and a temperature sensor, a first electric push rod is arranged on the top of the inner wall of the rectangular hole, and a second electric push rod is arranged on the top of the inner wall of the rectangular hole. A second electric push rod is installed at the position, close to the edge, of the bottom of the sliding block, and an electromagnetic heating coil is fixedly connected between the two round holes of the double-hole insulation block in a sleeved mode. According to the utility model, the heating mechanism is arranged, so that the forging equipment has an automatic heating function, namely, a bolt raw material can be directly placed in a die of the forging equipment, and is directly forged when the top end of the bolt raw material is heated, so that the production mode not only reduces the labor capacity of workers, but also improves the production efficiency, and the production cost is reduced. And the using effect of the forging equipment is improved, and meanwhile the using efficiency of the forging equipment is improved.

The invention relates to the technical field of pipeline electromagnetic heating, in particular to a three-phase mixed transportation glass fiber reinforced plastic pipeline electromagnetic heating device which comprises a glass fiber reinforced plastic pipeline, a control module and a plurality of heating plates fixedly installed on the inner side of the lower portion of the glass fiber reinforced plastic pipeline at intervals in the length direction. A plurality of electromagnetic coils are fixedly mounted at intervals below the glass fiber reinforced plastic pipeline corresponding to the positions of the heating plates in the length direction, and each electromagnetic coil is wound by a plurality of circles. The heating device is reasonable and compact in structure, alternating current can be provided for the electromagnetic coil by arranging the control module, the power of the electromagnetic coil can be controlled, and after the electromagnetic coil is electrified, the alternating current generates an alternating magnetic field to act on the wavy heating plate, so that fluid in the glass fiber reinforced plastic pipeline is heated; compared with a traditional method that an electromagnetic coil is spirally wound on the outer side of the pipeline, the installation mode is simpler, the installation cost is low, meanwhile, the distance between the electromagnetic coil and the heating plate is closer, the heating effect is better, and the electromagnetic heating efficiency is improved.

The invention relates to the technical field of electromagnetic heaters, and discloses a tank type anti-explosion electromagnetic heater which comprises a tank body and an anti-explosion junction box installed on the outer side of the tank body, the tank body is provided with a heat preservation layer, an electromagnetic coil and a heating cylinder from outside to inside, and one end of the heating cylinder is fixedly communicated with a feeding port. A plurality of conical plates are fixedly installed on the inner wall of the heating cylinder, round holes are formed in one sides of the conical plates in a penetrating mode, the conical plates are directly connected with the inner wall of the heating cylinder, and through heat conduction, the conical plates can be heated, so that the heating cylinder is heated, and the heating efficiency is improved. Water flow in contact with the conical plate can be heated, the heating area of the fluid is increased, the temperature of the fluid is rapidly increased, the flowing speed of the water can be increased through the round holes, the turbulence degree is increased, the mixing degree of the heated fluid and the low-temperature fluid is increased, and the heat transfer efficiency between the fluids is improved; and water flow in the heating cylinder can be heated more uniformly.

The utility model provides a coil panel and cooking equipment, and relates to the technical field of cooking equipment. The coil disc includes: a heat insulating member; the winding is arranged on the heat insulation part, the winding is spirally wound on the heat insulation part to form a coil, and the coil comprises a plurality of coil layers in the radial direction of the coil; wherein the distance between two adjacent coil layers is the radial interval of the coil, and the coil comprises a plurality of radial intervals; in the plurality of radial intervals, at least one radial interval is different from the other radial intervals. The coil panel has the electromagnetic heating capacity and the thermal radiation heating capacity at the same time, the universality of the induction type heating cooking utensil is improved, and the technical effects of optimizing the structure of the coil panel, widening the application range of the coil panel, improving the practicability of the coil panel and reducing the production cost of the coil panel are achieved.

The invention relates to the technical field of railway turnout snow melting, in particular to railway turnout active snow melting maintenance equipment and an intelligent control method.The railway turnout active snow melting maintenance equipment comprises a turnout, an electrical cabinet, an air pump, a distribution pipeline at the output end of the air pump and induction heating equipment; the electrical cabinet performs electric control and transmits related signals, the multiple induction heating devices are continuously arranged at the rail web of the inner side of the turnout stock rail and used for heating and melting accumulated snow between the induction heating devices and a switch rail, and meanwhile cold air is input into the two ends through the air pump to cool an internal coil, then secondary heating is performed in a gap between a heat insulation layer and a steel plate, and the melted snow is discharged. According to the invention, turnout snow melting is carried out based on combination of electromagnetic heating and hot air, the snow melting efficiency is high, the energy consumption is low, no influence is caused on a steel rail, the preheating time is short, traffic is opened immediately after snow melting, and meanwhile, intelligent control of self-starting, self-monitoring and self-judging can be carried out according to environment and scheduling information, so that the energy consumption is further reduced.

The utility model relates to a carrier and PCR (Polymerase Chain Reaction) detection system, the carrier comprises a cavity wall, the cavity wall comprises a first wall, a second wall and a side wall, the first wall and the second wall are oppositely arranged, the side wall is arranged between the first wall and the second wall, the side wall is annular, a reaction cavity for accommodating reaction liquid is defined by the cavity wall, and at least part of the cavity wall can be heated by an electromagnetic field. The PCR detection system comprises an electromagnetic heating mechanism and a cooling mechanism, the electromagnetic heating mechanism is used for heating the carrier, and the cooling mechanism is used for cooling the carrier.

The invention discloses a high-added-value silicon sludge recovery device and a method thereof. The high-added-value silicon sludge recovery device comprises a furnace body, the pretreated silicon sludge feeding system comprises a material collecting bin and a discharging pipe which is communicated with the furnace body and the material collecting bin; the smelting storage system comprises a straight-through type ceramic crucible; the electromagnetic heating system comprises a graphite heater and an induction coil sleeved outside the graphite heater; the silicon monoxide collecting system comprises a collecting barrel; the high-purity silicon drawing and collecting system comprises a graphite plug positioned at the bottom of the straight-through type ceramic crucible and a driving mechanism for driving the graphite plug to move up and down in the straight-through type ceramic crucible; and the vacuum system comprises a mechanical pump communicated with the hearth of the furnace body. According to the method, the pretreated silicon sludge is directly subjected to electromagnetic induction heating in the vacuum environment, silicon in the silicon sludge reacts with silicon oxide on the surface layer to prepare silicon monoxide, meanwhile, high-purity silicon is prepared through directional solidification of redundant silicon in the silicon sludge, and then high-added-value recovery of the silicon sludge is achieved.

The invention discloses a hot CO2-assisted electromagnetic heating in-situ carbon storage and hydrogen production synergistic method, belongs to the technical field of oil and gas reservoir in-situ carbon storage and hydrogen production, and solves the problem that CO2 and other gases can be generated during oxygen injection combustion reservoir in-situ hydrogen production at present. The method comprises the following steps: selecting a target reservoir, digging a well and distributing hydrogen production collaborative equipment, transforming and developing the target reservoir based on the type of the target reservoir, injecting high-temperature CO2, starting a microwave emission device of an electromagnetic heating hydrogen production and hydrogen production well to continuously heat the reservoir to a hydrogen production temperature, and keeping the current reservoir temperature and pressure condition to produce hydrogen. Starting an electromagnetic heating hydrogen production and hydrogen production well for production; closing the well to stop production when the hydrogen yield is rapidly reduced; according to the invention, the production of CO2 gas in the hydrogen production process is avoided, and multiple injection processes of oxygen-containing gas, water vapor and the like are simplified at the same time; the electromagnetic heating cost is reduced by injecting high-temperature CO2 to preheat the reservoir, and meanwhile, the utilization and geological storage of CO2 can be realized, so that the synergistic effect of geological storage of CO2 and in-situ hydrogen production is ensured.

The invention relates to the technical field of rolling optimization, in particular to a ring-pull can aluminum foil rolling process parameter optimization method which comprises the following steps: ring-pull can aluminum foil rolling optimization: setting rolling speed and pressure to ensure uniform thickness and smooth surface; parameters are adjusted through multiple rounds of rolling, and a joint optimization cycle is established; microwave and electromagnetic heating are introduced, rolling and heating are iteratively optimized cooperatively, an optimal parameter combination is obtained, and the problems that due to the fact that the control precision of key parameters such as temperature and pressure is limited, non-uniform distribution of the thickness of aluminum foil and reduction of the surface quality in the ring-pull can production process are directly caused are solved. According to the technical scheme, the technical problems that in the prior art, the rolling process parameters of the aluminum foil of the zip-top can are controlled in a refined mode due to collaborative iteration optimization rolling and multi-stage heating, the thickness uniformity and the surface smoothness of the aluminum foil of the zip-top can are remarkably improved, and support is provided for comprehensively improving the quality of the zip-top can product are solved.

The invention discloses an electromagnetic heating maintenance vehicle for an asphalt pavement in the technical field of pavement maintenance, and the electromagnetic heating maintenance vehicle comprises a vehicle, a folding support, an electromagnetic generation plate, a fixing frame and an adjusting frame, the electromagnetic generation plate is hung on the fixing frame, and the electromagnetic generation plate can contract and extend backwards to heat the pavement; the folding support can rotate and fold the electromagnetic generation plate on the outer side by 180 degrees, the maintenance mode of the asphalt pavement can be optimized, daily maintenance and repair can be actively conducted on the pavement, active repair of cracks in the germination stage is achieved through electromagnetic refined permeation heating and reduction of asphalt flow activation energy, the service life of the pavement is greatly prolonged, and the service life of the pavement is prolonged. The device can automatically recognize the height and temperature of the road surface to control the interval height and heating temperature between the electromagnetic coil and the road surface, so that the self-adaptive road surface repairing effect is achieved, the device can be flexibly switched between the normal transportation driving state and the construction operation state, and transportation driving and construction operation are more convenient.

The utility model discloses a bending device for bracket processing, which relates to the technical field of machining, and comprises a workbench and a bending mechanism, a bracket needing to be bent is clamped and fixed through a fixing frame, in the bracket bending process, a rotating shaft is driven by a motor to further drive the bracket to move and feed, and the bracket is bent by adjusting the length of a telescopic pipe. In the feeding process, impurities on the surface of the support are scraped off through a friction scraping plate, a support cleaning agent stored in a liquid storage box enters the limiting blocks through telescopic pipes and is sprayed to the surface of the support through through holes, stubborn impurities on the surface of the support are further removed, and the cleaning effect of the support is improved. The problem that the support is bent unevenly or deformed due to impurities is solved, the support is heated through the electromagnetic heating plate, the hardness and strength of materials are reduced, meanwhile, a cleaning agent is dried, and it is prevented that the cleaning agent stays on the surface of the support, secondary pollution is caused to the support, and the quality of the support is affected.

The application discloses a pressure pipeline repairing device, relates to the technical field of pressure pipeline maintenance and repairing, and comprises a pipe body, a plugging assembly, a limiting assembly and a repairing assembly. The plugging assembly comprises a plugging side cover, a plugging top cover and a pressure relief pipe. The plugging side cover is attached to the upper end of the pipe body and located outside the damaged part of the pipe body. The plugging top cover is connected to the upper end of the plugging side cover through bolts. The pressure relief pipe is arranged at the center of the upper end of the plugging top cover and communicates with the plugging side cover. The limiting assembly comprises a limiting belt, a connecting seat and a connecting stud. The limiting belt is wrapped outside the lower end of the pipe body. The repairing assembly adopts an electromagnetic plate to generate an alternating magnetic field, performs non-contact electromagnetic heating on the plugging plate and a low-melting welding fusion plate, utilizes the melting characteristics of the welding fusion plate, and effectively bonds the plugging plate and the damaged part of the pipeline after cooling, so that the on-line welding repairing of the leakage point is realized from the outside of the pipeline. The operation process is safe, efficient and has high repairing strength.

The utility model relates to the technical field of electromagnetic heating, in particular to a graphite boat electromagnetic induction drying device. A graphite boat electromagnetic induction drying device comprises a drying container which is provided with an upper cover plate and a containing space; the lower heating assembly is arranged in the containing space, a graphite boat to be dried is suitable for being placed on the lower heating assembly, the lower heating assembly comprises an electromagnetic heating coil, and the electromagnetic heating coil is used for generating a high-frequency electromagnetic field to enable the graphite boat to be dried to generate heat energy. The graphite boat drying device solves the problems that an electric heating coil, an electric heating piece and the like can only heat in a certain area, so that a graphite boat outside the area needs to be dried through heat in air flow, and the drying efficiency is low.

The utility model discloses a non-ferrous metal rolled copper strip stress relieving device which comprises a machining table, an electromagnetic heater is fixedly installed on the upper end face of the machining table through an installation groove, a telescopic groove is formed in the upper end face of the machining table, and a toothed plate is fixedly connected to the inner bottom wall of the telescopic groove through an elastic mechanism. A supporting plate is fixedly installed on the upper end face of the machining table, a moving frame is fixedly connected to the bottom wall of the supporting plate through a lifting mechanism, a reciprocating lead screw is rotatably installed in the moving frame, and a motor connected with the reciprocating lead screw is fixedly installed on the outer wall of the moving frame. By arranging the reciprocating lead screw, the lead screw sleeve, the lower pressing roller and the like, when the lower pressing roller extrudes a copper sheet, the reciprocating lead screw drives the lead screw sleeve to move through the cooperation of the limiting rod, and then the lead screw sleeve drives the lower pressing roller to move through the cooperation of the lower pressing frame, so that the lower pressing roller can roll the heated copper sheet; and deformation of the copper sheet caused by heating in the stress eliminating process is avoided.

The utility model relates to the technical field of frying machinery, in particular to an electromagnetic frying machine with uniform temperature, which comprises a main body, a pot body and an electromagnetic heating device, the main body is of a rectangular shell structure, and the pot body is arranged in the middle of the main body; the oil discharge pipe is communicated with the bottom of the pot body; a stirring motor is fixedly connected with the supporting plate through screws, and the stirring motor is located over the fishing-out net; the spiral stirrer is connected with the lower end of the stirring motor to form a rotating device, and the upper end of the side stirring shaft is welded and fixed on the outer wall of the spiral stirrer; the fixing strips are symmetrically welded and fixed to the bottom face of the inner side of the fishing-out net, and the slag containing box is inserted and fixed between the fixing strips. By improving the electromagnetic frying machine with uniform temperature, the electromagnetic frying machine has the advantages that oil in the pan body is uniformly heated through stirring, the frying quality is improved, food adhesion is prevented, and residues are collected, so that the problems and defects in the prior art and equipment are effectively solved.