1666results about How to "Heating evenly" patented technology

The invention discloses a waste plastic pyrolysis-catalysis system based on electromagnetic induction heating and a catalytic reforming method, and relates to the technical field of plastic pyrolysis. The problems that in the existing plastic pyrolysis-catalysis process, the yield and quality of CNTs and H2 are affected by factors such as non-uniform heating, catalyst deactivation and difficult product separation exist are solved. The system comprises a gas inlet device, a waste plastic pyrolysis device, a waste plastic continuous feeding device, a waste plastic catalytic reforming device and a gas collecting device, the gas inlet device is used for providing argon gas flow for the waste plastic pyrolysis device through a gas pipe; the waste plastic continuous feeding device is used for feeding waste plastic into the waste plastic pyrolysis device for heating and cracking; pyrolysis products enter a waste plastic catalytic reforming device after passing through a waste plastic pyrolysis device; according to the waste plastic catalytic reforming device, the temperature is regulated and controlled through the electromagnetic induction heating module, and the catalytic reforming process is optimized; and gas products after catalytic reforming are collected by a gas collecting device. The method is applied to the field of plastic recovery.

The invention relates to the technical field of annealing furnaces, in particular to a swirl injection type energy-saving annealing furnace. The device comprises outer shell plates and an air duct, the outer shell plates are spliced to form a hearth, the air duct is arranged in the outer shell plates to form an air path for convective circulation, the air duct is connected with a circulating fan, and air in the air duct and an inner cavity of the hearth is driven by the circulating fan to actively convectively circulate. The air direction of air convection circulation of the air channel faces the side face and the lower portion of the workpiece needing annealing, and a heat preservation layer is attached to the inner surface of the outer shell plate. The shell plate is used for supporting a main body structure of the furnace body, the air duct is used for achieving circulation convection of air flow, the annealing efficiency and the annealing quality of the metal coiled materials are improved through circulation convection of high-temperature air flow, the heat preservation layer is used for storing internal heat, reducing energy leakage and effectively reducing loss, and the circulation fan is used for providing power for circulation convection of the air flow.

The utility model discloses a feed production device, which relates to the technical field of feed production devices and comprises a feed barrel, a plurality of support legs arranged at four corners of the bottom end of the feed barrel, a discharge pipe arranged at one end of the feed barrel, a heating and stirring mechanism arranged inside the feed barrel, and a crushing box arranged at the top end of the feed barrel. A feeding mechanism is arranged at the end, away from the discharging pipe, of the smashing box, a filtering mechanism is arranged in the smashing box, and a smashing mechanism is arranged in the filtering mechanism. Through cooperative arrangement of the crushing mechanism, the filtering mechanism and the heating and stirring mechanism, feed can be processed to be finer and smoother, the feed is mixed to be more uniform, more dry and storable, waste caused by unqualified feed and non-storable feed is also avoided, and the feed processing quality is improved to a great extent.

The utility model provides a novel stirring rake type drying machine with triangular rake teeth, which mainly comprises an end socket, a feed port, a barrel, the rake teeth, a stirring paddle, a thermal medium inlet, a stirring shaft, a scraping plate, a discharge valve and a thermal medium outlet, the left end of the barrel is connected with the end socket through a flange and a bolt, and the right end of the barrel is welded with the end socket. The two ends of the stirring shaft are supported on end sockets on the two sides of the round barrel through the sealing system, the stirring paddle is connected with the rake teeth, the scraping plate is arranged at the end sockets, the discharging valve is arranged at the discharging port, and the thermal medium inlet and the thermal medium outlet are formed in the two sides of the barrel. The stirring paddle is a triangular stirring paddle and has the advantages that the heat exchange area is large, the stirring torque is small, the stirring paddle cannot be broken and the like, the stirring shaft, the stirring paddle and the rake teeth are provided with internal heating flow channels, heating is even, the heat exchange efficiency is high, and materials can be evenly mixed only by rotating forwards in the drying process. And during discharging, the materials can be pushed to the position of the discharging valve only by reversing during stirring.

The invention discloses a high-safety battery heat management system with high-temperature heat dissipation, low-temperature heating and heat spread suppression considered. The high-safety battery heat management system comprises a power battery pack and a heat management system, the power battery pack comprises a battery pack consisting of a plurality of square battery cells and a large-scale battery module formed by connecting the battery packs in parallel; a plurality of battery cells are connected in series in each battery pack, the battery packs are vertically arranged, the large-scale battery module is formed by horizontally arranging the battery packs, and each battery pack comprises equal or unequal battery cells; the thermal management system comprises a flexible flame-retardant phase-change material, a liquid cooling plate, a heating film and aerogel; a part of side surfaces between the battery cells are uniformly filled with a flexible flame-retardant phase-change material, the other side surfaces are wrapped by aerogel, the bottoms of the battery cells are connected with an integrated unit of a heating film and a liquid cooling plate, and the heating film is positioned at the positions of the battery cells for heating; the battery pack is cooled through water cooling and phase change latent heat; heating the battery pack through a heating film at the bottom of the battery cell; and the thermal runaway of the battery is inhibited through the combination of the flexible flame-retardant phase-change material and the aerogel.

The invention provides a positive electrode material as well as a preparation method and application thereof, and relates to the technical field of lithium ion batteries. The particle size distribution curve of the positive electrode material is bimodal distribution, the positive electrode material is composed of large-particle-size secondary spherical particles and small-particle-size secondary spherical particles, the large-particle-size secondary spherical particles are composed of small-particle-size primary spherical particles, the small-particle-size secondary spherical particles are composed of large-particle-size primary spherical particles, and the large-particle-size primary spherical particles are composed of small-particle-size primary spherical particles. The D50 of the large-particle-size secondary sphere particles is 8.0-12.0 [mu] m, the D50 of the small-particle-size secondary sphere particles is 2.0-4.0 [mu] m, the maximum diameter of the small-particle-size secondary sphere particles is not more than 5 [mu] m, and the minimum diameter of the large-particle-size secondary sphere particles is not less than 5 [mu] m. Compared with the prior art, the invention provides the positive electrode material matched with two secondary spherical particles with different primary spherical particle sizes, so that the compaction density and the cycling stability of the positive electrode material are improved.

The invention discloses a ventilator shell anti-icing device and an installation method, and relates to the technical field of air blowers. An anti-icing device for a ventilator shell comprises a heating module, a supporting module and an emptying module. The heating module comprises a coil pipe, and heating fluid is arranged in the coil pipe; the coil pipe is pressed and connected to the bottom position of the outer side wall of the fan shell through the supporting module; the emptying module comprises an emptying pipe, one end of the emptying pipe is connected with the fan shell, and a valve body is installed at the other end of the emptying pipe. The emptying pipe is communicated with the bottom of the inner cavity of the fan shell. The supporting module enables the heating module to be installed at the bottom of the outer side wall of the fan shell, the heating module heats water in the fan shell and an inner cavity of the fan shell, liquid water is prevented from being frozen into ice or solid ice is prevented from being melted into liquid water, and then the liquid water is discharged out of the fan through the emptying module, so that the anti-freezing effect is achieved, and the service life of the fan is prolonged. And the operation safety is improved.

The utility model discloses aviation lubricating oil viscosity measuring equipment, and belongs to the technical field of lubrication detection. Aviation lubricating oil viscosity measuring equipment comprises a measuring instrument body and further comprises a constant-temperature bin and a heating bin which are arranged in a constant-temperature bathtub, the constant-temperature bin is communicated with the heating bin through a channel, one end of a water pump is communicated with the heating bin, and the other end of the water pump is communicated with the constant-temperature bin; the bathtub cover is detachably arranged on the constant-temperature bathtub, a fixing seat is arranged on the bathtub cover, a mounting groove is formed in the fixing seat, and arc-shaped plates used for clamping capillary tubes are arranged on the inner walls of the two sides of the mounting groove in a sliding mode respectively; circulating heating of liquid in the heating bin and the constant-temperature bin can be achieved through the water pump, the liquid can be evenly heated, the heating efficiency can be improved, the two sets of arc-shaped plates are symmetrically arranged in the fixing base, the axes of the arc-shaped plates are parallel to the axes of the capillary tubes, the axes of the capillary tubes can be kept perpendicular, inclination is avoided, and the service life of the capillary tubes is prolonged. The measurement result is influenced.

The invention provides a carbon nano tube film flexible electric heating composite fabric and a preparation method, and solves the technical problems that the existing heating fabric cannot be folded for multiple times, is poor in comfort and cannot be cut, the carbon nano tube film flexible electric heating composite fabric comprises an antibacterial layer, a waterproof layer, a heating layer and a substrate layer, the waterproof layer comprises an upper waterproof layer and a lower waterproof layer, the device is characterized in that an upper waterproof layer and an antibacterial layer are sequentially arranged at the upper end of the heating layer, a lower waterproof layer and a substrate layer are sequentially arranged at the lower end of the heating layer, and the heating layer comprises a heating element and a flexible electrode; the heating element is a carbon nanotube film made of multi-walled carbon nanotubes with two closed ends and placed in the same direction, the conductivity of the heating element in the longitudinal direction is larger than that in the transverse direction, and the surface of the carbon nanotube film is electrically connected with the flexible electrode in a longitude and latitude crossing mode. The method can be widely applied to the technical field of cloth preparation.

The invention belongs to the technical field of heat treatment, and particularly relates to an alloy steel heat treatment device which comprises a heat treatment furnace, a fixing frame is fixedly connected to the lower end of the heat treatment furnace, a conveying chain plate is installed in an inner cavity of the heat treatment furnace, first supporting frames are installed at the two ends of the conveying chain plate, and two T-shaped clamping blocks are symmetrically and fixedly connected to the outer portion of the conveying chain plate. Every two T-shaped clamping blocks form one set, multiple sets of T-shaped clamping blocks are arranged outside the conveying chain plate, discharging bracket assemblies are connected to the outer portions of the T-shaped clamping blocks in a clamped mode, each discharging bracket assembly comprises a U-shaped clamping sleeve connected to the outer portion of the corresponding T-shaped clamping block in a clamped mode, a supporting plate is fixedly connected to the upper end of each U-shaped clamping sleeve, and a containing groove is formed in the upper end face of each supporting plate. An inner cavity of the placing groove is used for placing an alloy nut and is rotationally connected with a transmission shaft; the problem that due to the fact that the supporting plate is inserted into the sleeve, when the driving wheel rubs against the conveying belt support, the supporting plate is stressed to move upwards, and the driving wheel is difficult to rub against the conveying belt support and rotates stably is solved.

The invention discloses a laser welding machine assembly for self-positioning rotary welding, and belongs to the field of welding devices. Comprising a workbench, a rotatable welding table is arranged above the workbench, a laser welding head is arranged above the welding table, a gas conveying pipe is arranged in the laser welding head, a mounting plate is arranged on one side of the laser welding head, a swing assembly is arranged on the mounting plate, and one end of the swing assembly is connected with the laser welding head. According to the device, through the arranged connecting piece, during welding operation, the laser welding head can conduct swing welding operation, meanwhile, part of shielding gas is extracted through the action generated by the swing welding operation to be matched with output shielding gas, the covering range of the shielding gas is enlarged, and the welding quality of the device is further improved; defects generated during welding are effectively reduced, meanwhile, interference of plasmas on laser beams can be reduced, and the stability of welding operation is improved.

The invention relates to the technical field of milk sterilization systems, in particular to an intelligent microwave-heat exchange composite milk sterilization system and a method thereof.The system comprises a mixing module used for adjusting the flow speed and temperature of fresh milk; the microwave sterilization module is used for heating milk by using a multi-frequency magnetic field; the temperature control module comprises a microwave power regulator and a heat exchanger and is used for regulating the microwave heating time and the heat exchange rate so as to control the milk temperature; and the digital twin module optimizes the sterilization process by using deep reinforcement learning and simulates the system performance in a virtual environment, and a faster and more uniform heating process is realized through the synergistic effect of microwaves and heat exchange. The application of the multi-frequency magnetic field technology further improves the uniformity of microwave heating, and effectively solves the problems of hot spots and cold spots in traditional heat exchange sterilization. Experimental results show that compared with a traditional method, the sterilization effect is improved by about 11.5%, which means higher food safety.

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 invention relates to the field of aluminum alloy door and window enterprises, and discloses an electrostatic powder spraying process and device for aluminum alloy machining, and the electrostatic powder spraying process comprises the following steps: pretreatment: pretreating an aluminum alloy base material, the pretreatment comprises polishing, cleaning and preheating treatment; powder treatment is conducted, specifically, a treatment agent accounting for 5%-10% of the mass of the powder base material is added into the powder base material, high-speed stirring is conducted, spraying powder is obtained, and the treatment agent is composed of a low-Tg polyester resin modifier and nano titanium dioxide; and electrostatic spraying is conducted, specifically, powder spraying is conducted on the surface of the pretreated aluminum alloy base material through electrostatic powder spraying equipment through spraying powder. Powder added with a treating agent is sprayed to an aluminum alloy base material, low-temperature rapid curing is conducted, the curing process of the coating is rapidly completed at the relatively low temperature through stage gradient temperature curing and auxiliary curing, and the curing efficiency and quality are further improved through ultraviolet light and microwave auxiliary curing.

The invention relates to the technical field of yeast production, in particular to a controllable concentration device for yeast liquid purification and a concentration method thereof. Comprising a concentration tank, a finished product discharging pipe is arranged on the central axis of the concentration tank, a concentration unit is arranged in the concentration tank in the vertical direction, the central axis of the concentration unit coincides with the finished product discharging pipe, and a main body of the concentration unit is of a spiral structure; a circulating pipe is arranged on one side of the concentration unit. According to the present invention, the rapid layered purification is achieved, and compared with the traditional tank stirring mode, the stirring heating dead angle does not appear, and the purified yeast concentrate does not re-mix due to stirring. Therefore, the concentration speed is accelerated, and the concentration efficiency is improved. And meanwhile, the yeast liquid flowing out of the bottom of the concentration unit can be conveyed back into the concentration unit by using the circulating pipe for repeated concentration, so that the controllable purpose is achieved.

The invention relates to the technical field of brazing furnaces, and discloses an energy-saving vacuum brazing furnace which comprises an outer cylinder, an inner cylinder arranged in the outer cylinder, sealing covers arranged at openings in the two ends of the outer cylinder, heating equipment arranged in the inner cylinder and a supporting table and further comprises a placing assembly, and the placing assembly specifically comprises a pushing sliding groove formed in the top of the supporting table; the pushing sliding block is arranged in the pushing sliding groove, the rotating inserting groove and the stand column are formed in the top of the pushing sliding block, and the containing frame is arranged on the top of the stand column. According to the energy-saving type vacuum brazing furnace, by arranging the containing assembly and the stand columns, the containing frame is lifted, the distances between the containing frame and the heating equipment are the same in the center and the periphery of the inner barrel, and therefore parts in the containing frame are evenly heated, and the situation that the brazing degrees of the different parts are inconsistent due to uneven heating is avoided; and deviation and deformation caused by uneven heating of different positions of the part are avoided, so that the brazing effect of connection is guaranteed, and the product quality is improved.

The utility model relates to the technical field of PVC (polyvinyl chloride) pipe machining, and discloses a PVC pipe bending device which comprises a machining table, a clamping component arranged at the top of a nut block and used for positioning a pipe, and a pipe bending component arranged in a U-shaped frame and used for bending and forming the pipe along the inner wall of a forming die cavity. One end of the pipe to be bent is fixed to the clamping assembly, then the first motor is used for driving the pipe on the clamping assembly to reciprocate in the axis direction of the ball screw, the purpose that manual work is replaced by a machine to determine the bending position of the pipe is achieved, and the operation difficulty is lowered; the outer side of a pipe is evenly heated through the preheating assembly, the clamping assembly pushes the pipe to advance to the forming die cavity along the limiting assembly, the driving assembly is started again to drive the pipe bending assembly in the U-shaped frame to press and form the pipe, and therefore the outer side of the pipe is evenly heated before pipe bending work, and the pipe is softened more sufficiently; and the pipe bending forming effect is better.

The utility model relates to the technical field of pipeline systems, in particular to a pipeline heat treatment device which comprises a cylindrical heater, the heater comprises two detachable semicircular cylinders which are symmetrically arranged, and heating wires are arranged on the semicircular cylinders; the heater is a straight cylinder or a bent cylinder which is the same as the heated pipeline section in shape, and the length of the heater is slightly larger than that of the heated pipeline section; sealing plates are arranged at the two ends of the semicircular cylinder, and semicircular through holes allowing pipelines to pass through are formed in the sealing plates; when the pipeline heat treatment device heats the pipeline, heating is more uniform, and the heating effect is better.

The invention relates to a heating control method of a cooking device. The heating control method of the cooking device comprises the steps that according to the type of a heating disc of the cooking device, a temperature image matrix of the surface of cooking food materials in the cooking device is obtained; performing region division on the temperature image matrix according to the type of the heating disc to obtain temperature information of a plurality of heating regions; determining a corresponding temperature adjusting strategy according to the temperature information of the plurality of heating areas; and performing power adjustment on each heating area according to the temperature adjustment strategy. According to the scheme, uniform heating can be guaranteed, and the half-green and charring phenomena are reduced.

The invention discloses a preparation method and application of active cationic chitosan nanoparticles, which comprises the following steps: reacting a low-molecular chitosan triethylamine hydrogen sulfate ionic liquid ([(C2H5) 3NH] HSO4) solution with an aldehyde compound ethanol solution to form Schiff base protection on chitosan C2-site amino, and then reacting with 2, 3, 5, 6-tetramethyl-4-piperidine-2-one to obtain the active cationic chitosan nanoparticles. The preparation method comprises the following steps: carrying out nucleophilic substitution reaction on chitosan C6 in the presence of a basic catalyst by using 2, 3-epoxypropyl trimethyl ammonium chloride, then adding a chemical initiator, carrying out grafting reaction on chitosan C3 and acrylic acid, and then removing Schiff base protection on chitosan C2. Carboxylate anions of acrylic acid and cations of chitosan are subjected to cross-linking self-assembly through a hydrothermal reaction, and the chitosan nanoparticles which are high in stability, small in particle size, uniform in distribution and efficient and lasting in function are obtained. The prepared nanoparticles are high in reaction activity, contain a large amount of quaternary ammonium salt, amino dication groups and carboxyl groups, and have wide application prospects in the fields of dye adsorption, heavy metal adsorption, textile function finishing and the like.

The invention belongs to the field of ammonia cracking hydrogen production devices, and particularly relates to an ammonia catalytic cracking hydrogen production device based on engine exhaust waste heat utilization, a control system and a control method.The ammonia catalytic cracking hydrogen production device comprises an ammonia catalytic cracking hydrogen production system, a nitrogen-hydrogen separation system and a working condition control system; the ammonia catalytic cracking hydrogen production system comprises an exhaust pipe, and an ammonia gas cracking pipe and a heat insulation pipe which sequentially wrap the outer wall of the exhaust pipe; the ammonia gas cracking pipe comprises an ammonia gas inlet and a cracking mixed gas outlet, and a gap is reserved between the inner wall of the ammonia gas cracking pipe and the outer wall of the exhaust pipe and used for circulation and cracking of ammonia gas; the nitrogen-hydrogen separation system comprises a hydrogen separation unit, a nitrogen separation unit and an ammonia gas recovery unit; the cracking mixed gas outlet is connected with the hydrogen separation unit; the ammonia gas recovery unit comprises an ammonia water heating bin, and the exhaust pipe penetrates through the ammonia water heating bin. Ammonia gas cracking and nitrogen-hydrogen separation are completed by fully utilizing engine tail gas waste heat, the cost and energy consumption are remarkably reduced, and hydrogen supply for promoting efficient and reliable combustion of the ammonia engine can be obtained.

The invention discloses a heating energy-storage snow-melting anti-cracking pavement structure system for a road. The system comprises a heat-conducting anti-cracking modified asphalt concrete surface layer, a temperature-adjusting emulsified asphalt macadam layer, a heating anti-cracking steel wire reinforced net, a heat-conducting anti-cracking asphalt concrete bottom layer, an energy-storage cement stable base layer, a PLC (Programmable Logic Controller), an energy storage battery, a solar panel and a temperature sensor. Through the heating function of the heating device, the whole road surface is heated, the road surface is uniformly heated, snow accumulation and icing on the road surface are prevented, and the ice and snow removing cost is reduced; the copper-plated steel fibers are added to the surface layer and the bottom layer of the asphalt concrete, so that the conductivity of the asphalt concrete is improved, and the heat-conducting capacity of the asphalt concrete is enhanced; graphite powder in the temperature-adjusting emulsified asphalt macadam layer has better uniform heat conduction performance, so that the emulsified asphalt macadam layer can form a uniform ultrathin heat conduction'panel '; a certain proportion of paraffin is added into the cement-stabilized base layer, the paraffin releases heat in a low-temperature state, and cracking caused by icing of water in the cement-stabilized base layer is prevented.

The invention relates to the technical field of metal heat treatment, in particular to a quenching process for improving the surface quality of a plate spring and reducing oxidation and decarburization, which comprises the following steps: putting the plate spring into a heating furnace, accelerating heating to 900-100 DEG C, and keeping the temperature for 30-35 minutes; the heated plate spring is placed in a quenching machine to be clamped and quenched; the tempering temperature is selected according to the hardness value required by the plate spring, and a continuous or periodic operation tempering furnace is adopted for tempering treatment; and the plate spring is relaxed, loaded, heated and subjected to heat preservation. By accurately controlling the heating temperature and time and combining the intelligent temperature control system to optimize the heating process, it is ensured that the plate spring is evenly heated within the optimal temperature range. In this way, the surface quality of the plate spring is improved, the performance difference caused by uneven heating is reduced, the oxidation and decarbonization phenomena are effectively reduced, the service life of the plate spring is prolonged, and the overall performance of the plate spring is improved.

The utility model relates to a wafer novel dual-purpose chuck, which is used for being installed in a vacuum chamber of welding equipment, and comprises a heating assembly, which comprises a heating disc, and the top surface of the heating disc is provided with a supporting assembly used for supporting a wafer; a heating wire is arranged on the bottom surface of the heating disc, the heating wire is coiled into a plurality of heating rings, and the plurality of heating rings are distributed at equal intervals along the radial direction of the heating disc; the cooling assembly comprises a cooling disc, the cooling disc is fixedly connected with the bottom face of the heating disc, a flow channel corresponding to the heating ring is formed in the cooling disc, and the flow channel is used for being filled with a cooling medium; and the temperature control assembly comprises a thermocouple, a detection head of the thermocouple is arranged on the heating disc and used for detecting the temperature of the heating disc, a detection piece is electrically connected with a controller, and the output end of the controller is electrically connected with the heating wire. According to the novel dual-purpose chuck for the wafer, the wafer can be heated more uniformly by the heating disc, a welding process and a cooling process are combined, and the welding quality and efficiency of the wafer are improved.

The utility model relates to a battery pack heating circuit and an energy storage cabinet, the circuit comprises at least one energy storage module, and the energy storage module comprises an AC-DC conversion circuit, a driving element and a controller; the DC side of the AC-DC conversion circuit is suitable for being connected with the battery pack, and the AC side is suitable for being connected with an external power supply; the controller is connected with the driving element, the first confluence end of the controller is suitable for connecting the anode of the battery pack, and the second confluence end is suitable for connecting the cathode of the battery pack; when the temperature of the battery pack is lower than the preset temperature, the inductor in the controller and the driving element is suitable for forming a current loop with the battery pack lower than the preset temperature so as to perform self-heating of the battery pack; or the external power supply is suitable for charging the battery pack with the temperature lower than the preset temperature or discharging the battery pack with the temperature lower than the preset temperature to the external power supply so as to perform self-heating of the battery pack. According to the scheme, the internal self-heating function of the battery pack can be realized without arranging an additional external device, the heating is uniform, the heating speed is high, and additional cost and volume are not increased.

The utility model relates to the technical field of water purification equipment, in particular to an external electric heating device of water purification equipment, which comprises a shell, a stirring component is arranged in the middle of the shell, a heating box is arranged on the right side of the shell, three supporting legs are fixedly connected to the bottom of the shell at equal angles, and partition plates are arranged among the inner walls of the shell. The device has the beneficial effects that through mutual cooperation of a motor, a first bevel gear, a main shaft, a second bevel gear, a third bevel gear and a rotary drum, an outer stirring rod and an inner stirring rod are driven to rotate in opposite directions, so that purified water is more sufficiently stirred by the two groups of stirring rods, and the mixing speed of a purifying agent and water is increased; the two stirring rods are arranged on the inner side and the outer side of the spiral heating pipe, purified water in the shell is continuously turned over, cold purified water close to the interior of the shell is turned over to the position close to the spiral heating pipe to be heated, and uniform heating of the purified water can be achieved through the structure.

The invention discloses a purification method and a purification device for crystallized magnesium, and relates to the field of magnesium metal smelting. The method comprises the following steps: under the protection of an inert atmosphere, firstly carrying out pressure-applying melting treatment on a magnesium material to be smelted, and then carrying out pressure-applying filtering treatment on a product obtained after the melting treatment, so as to complete the flux-free smelting process of the magnesium material. And meanwhile, the metal magnesium liquid and most of the oxide shells are separated by utilizing the liquidity difference between the liquid metal magnesium and the solid oxide shells. Compared with a conventional smelting process without pressure application, the method has the advantages that the melting rate of the crystallized magnesium can be remarkably increased, most of oxide impurities are removed, a series of pollution problems caused by flux use are solved from the source, and low-cost, high-efficiency and high-quality smelting of the crystallized magnesium is realized.

The invention relates to the technical field of annealing furnaces, in particular to an all-hydrogen cover type annealing furnace for tinplate, which comprises a base, an outer cover is mounted at the upper end of the base, a gas pipeline is mounted on the side surface of the outer cover, an inner cover is arranged on the inner side of the outer cover, and the inner cover is mounted at the upper end of the base; a plurality of separation discs are installed at the upper end of the base from top to bottom in the inner cover at equal intervals, an annular air guide plate is fixedly installed on the inner side wall of the inner cover, every two vertically adjacent separation discs are connected through a supporting rod, the lowermost separation disc is connected with the base through a supporting rod, and an air guide assembly is installed on each separation disc. The device has the beneficial effects that the separation disc and the gas guide assembly are spliced firstly, then coiled materials and the like are sequentially placed on the supporting tables, one coiled material is placed on each supporting table, then the separation disc is sequentially covered with the inner cover and the outer cover, at the moment, the inner cover is heated, meanwhile, air in the inner cover is exhausted, and then hydrogen is introduced.

The utility model belongs to the technical field of printing and dyeing machinery, and particularly relates to an efficient fabric dyeing device which comprises a dyeing kettle body, the dyeing kettle body is transversely arranged, a feeding assembly is arranged at the top of the dyeing kettle body, a stirring assembly is arranged in the dyeing kettle body, a clamping sleeve is arranged at the bottom of the dyeing kettle body, and the clamping sleeve is hollow. And a liquid inlet pipe and a liquid outlet pipe are arranged on one side of the jacket. The hollow jacket is arranged at the bottom of the transversely-arranged dyeing kettle body, heat conduction oil or hot water or other heating liquid is injected into the jacket, and the stirring assembly in the dyeing kettle body is matched, so that the dyeing liquid in the dyeing kettle body is heated uniformly, the dyeing temperature is appropriate, the coloring and color fixing time of fabrics is shortened, the energy consumption is reduced, and the production efficiency is improved. The dyeing efficiency is improved; and the dye liquor can be fully adsorbed on the fabric, so that the wastewater treatment burden is reduced.

The invention provides a dimethyl sulfone extraction device and method, and relates to the technical field of dimethyl sulfone preparation. The dimethyl sulfone extraction device comprises a mixing box, a first feeding hopper and a second feeding hopper; the blocking mechanism comprises sliding columns arranged on the side walls of the two ends of the fixed box in a sliding mode, a sealing plate arranged at the ends, away from the fixed box, of the sliding columns, and a driving assembly arranged in the fixed box and used for driving the two sliding columns to move in the same direction so as to intermittently block discharging ports of the first feeding hopper and the second feeding hopper. The wall scraping mechanism can scrape off part of crystals attached to the surfaces of the stirring blades while the stirring blades rotate. According to the invention, sulfite and methanol can be intermittently put into the mixing box in sequence, so that the sulfite and the methanol are doped together to improve the reaction speed of a solution, and part of crystals which are separated out and attached to the surfaces of the stirring blades can be scraped off while the stirring blades rotate; the solution can react thoroughly, and resource waste caused by the fact that crystals cannot be collected subsequently can be avoided.