139results about How to "Increase the heating area" patented technology

The invention relates to the technical field of electromagnetic heaters, and discloses a tank-type explosion-proof electromagnetic heater, comprising a tank body and an explosion-proof junction box installed on the outside of the tank body, wherein the tank body comprises, from outside to inside, a heat preservation layer, an electromagnetic coil and a heating cylinder, one end of the heating cylinder is fixedly connected with a feed port, the outside of the heat preservation layer is fixedly installed with a discharge port connected with the heating cylinder, and a plurality of conical plates are fixedly installed on the inner wall of the heating cylinder. The invention fixes a plurality of conical plates on the inner wall of the heating cylinder, and penetrates through a circular hole on one side of the conical plate, and the conical plate is directly connected to the inner wall of the heating cylinder. Through heat conduction, water flow contacting with the conical plate can also be heated, thereby increasing the heated area of ​​the fluid and rapidly raising the temperature of the fluid. Moreover, water passing through the circular hole can increase the flow rate of water and increase the degree of turbulence, thereby increasing the degree of mixing of the heated fluid with the low-temperature fluid and improving the heat transfer efficiency between the fluids. At the same time, in conjunction with stirring, the water flow in the heating cylinder can be heated more evenly.

The utility model belongs to the technical field of agricultural product drying equipment, and particularly relates to a heat source device of a grain dryer. One end of the shell is provided with a shell air inlet, the other end of the shell is provided with a shell air outlet, the shell air outlet is provided with an air blower connecting structure, an air duct piece is arranged in the shell, one end of the air duct piece is correspondingly connected with the shell air inlet, and the other end of the air duct piece is correspondingly connected with the shell air outlet; a plurality of heating plates which are arranged at intervals up and down are fixedly arranged in an inner cavity of the air duct piece through a mounting bracket, each heating plate is horizontally arranged, and the heating plates are microcrystalline glass plates coated with electrothermal films and conductive electrodes. According to the utility model, the heating efficiency can be effectively improved, and the use cost is saved.

The utility model discloses a rectification extraction device capable of improving the quality of propylene glycol, which belongs to the technical field of rectification and is characterized in that propylene glycol steam generated at high temperature is introduced into a preheating tank and is conveyed upwards along a spiral preheating structure to transfer heat to a mixed solution containing propylene glycol, which is conveyed downwards by the preheating structure, so that the quality of propylene glycol is improved. According to the multi-stage rectification device, the temperature of mixed liquid primarily entering the first rectification tower is effectively increased, propylene glycol steam after being cooled is guided into the second rectification tower to be subjected to secondary rectification after being cooled by the condenser, and the rectification effect is effectively improved through multi-stage rectification, in addition, a stirring barrel matched with a stirring shaft is additionally arranged in the first rectification tower, and the rectification efficiency is improved. Waste liquid in the second rectifying tower is guided into the stirring barrel through the second discharging pipe and mixed with preheated mixed liquid, on one hand, the waste liquid with waste heat is used for conducting secondary preheating on the mixed liquid, on the other hand, the stirring structure is additionally arranged, the heating uniformity of the mixed liquid is improved, and the heating effect is enhanced.

This invention discloses a high-purity hydrogen production device, comprising: an evaporation module, a reforming module, and a purification module; the temperature of the medium within the evaporation module, reforming module, and purification module gradually increases, and heat from the high-temperature module can be transferred to the low-temperature module; the evaporation module has multiple heat exchange plates, and a partition is provided between adjacent heat exchange plates, dividing the space between adjacent heat exchange plates into a preheating space and an inflow space; the reforming module has several reforming channel groups, which are connected to the evaporation module by a gradually narrowing channel; the purification module has purification channels, and several hydrogen permeable membranes are provided within the purification channels; the purification channels are connected to the reforming channel groups; the purification module passes sequentially through the reforming module and the evaporation module, so that the purification channels can transfer heat with the reforming module and the evaporation module. This allows for thermal coupling between multiple modules, enabling gradient energy utilization and solving the problems of uneven heating within the reforming reaction chamber.

The invention relates to the field of material surface treatment and machining, in particular to a method and device for directly preparing a copper alloy coating on the surface of a titanium alloy sealing rod. The process comprises the steps that firstly, cleaning and metal powder drying treatment are conducted on a sealing rod base material, and the base material is clamped on a rotary bearing mechanism in an adjusting box body; sealing the adjusting box body and filling inert gas to replace air until the oxygen content reaches the standard; the laser cladding mechanism is controlled to conduct scanning preheating on the surface of the base material in a non-powder-feeding state; then a powder feeding function is started, spiral high-speed laser cladding is carried out in cooperation with rotation of the base material and axial feeding of the cladding assembly, and closed-loop adjustment of the protective gas flow is carried out in the cladding process; and after cladding is completed, the base material is transferred into the heating furnace body in the box body to be subjected to post-treatment slow cooling, laser scanning preheating and in-furnace slow cooling are combined, atmosphere closed-loop control in a closed environment is matched, and the effect of restraining cracking and oxidation of a titanium alloy cladding layer is achieved.

The utility model relates to the technical field of fertilizer fermentation devices, in particular to a biological organic fertilizer fermentation device, which increases the heating area of a fertilizer, improves the heating uniformity of the fertilizer, improves the up-and-down flowing circulating conveying effect of the fertilizer, improves the mixing uniformity and mixing efficiency of the fertilizer and improves the fermentation quality of the fertilizer. Comprising a tank body and a feeding port which is communicated with the top end of the tank body; the heat conduction liner is arranged on the inner side wall of the tank body, a cavity is formed between the tank body and the heat conduction liner, the spiral blade and the multiple sets of stirring blades are installed on the supporting device, the supporting device is used for driving the spiral blade to rotate, and the stirring blades are arranged in the cavity. The supporting device is arranged at the bottom end of the tank body and used for driving the multiple groups of stirring blades to move circumferentially, the discharging device is arranged at the bottom end of the tank body in a communicating mode and used for discharging fertilizer in the tank body outwards, and the conveying device is arranged below the tank body.

The utility model relates to the technical field of freeze drying, and disclose a freeze -drying pet dairy product freeze -drying equipment, include: freezer body, lift structure, lift structure includes support frame and tray, and the both sides inner wall of freezer body all fixed mounting support frame, and the tray is placed on the support frame, collection structure, collection structure includes first guide plate, second guide plate and collection part, and first guide plate and second guide plate are fixedly installed with the support frame of freezer body both sides respectively, and the second guide plate forms a blanking channel between, and the collection part is detachably installed in the freezer body and is located blanking channel directly below, and the water and impurity that tray falls are guided to blanking channel through the first guide plate and second guide plate of inclination, and the impurity and water enter the collection part in blanking channel and are collected centrally, avoid the debris in upper layer material and water drop to the material on the tray below, guarantee every piece tray material on not mutual pollution.

The utility model relates to domestic waste treatment technical field especially, a kind of waste heat energy storage equipment for domestic waste incineration boiler, its technical scheme includes: front water tank, rear water tank and flue body, the front water tank and rear water tank are respectively installed in the front and rear ends of flue body and intercommunication, the flue body is used for the flue gas of incineration boiler to pass through;The front water tank and rear water tank are used for water storage heat exchange;Heating tank is communicated on the rear water tank, and the heating tank is used to increase heating area;The front water tank is detachably installed with protective sleeve, the protective sleeve is movably sleeved on the outside of heating tank, for protecting heating tank from the influence of smoke dust.The utility model has the advantages of guaranteeing waste heat recovery efficiency and reducing maintenance difficulty, solves the problem that existing equipment is affected by smoke dust, resulting in the decline of waste heat recovery efficiency and higher maintenance cost.

The atomization assembly is used for the electronic atomizer, the atomization assembly comprises an atomization core and a heating structure, a through hole is formed in the atomization core, the heating structure comprises a plurality of heating parts, the heating parts are arranged on the atomization core at intervals and are close to the inner wall of the through hole, the outer surface of the atomization core is used for receiving oil liquid, and the heating parts are arranged on the outer surface of the atomization core. The atomization core is used for transferring oil liquid from the outer surface of the atomization core to the inner wall of the through hole, the heating pieces are used for heating so that the oil liquid can be atomized on the inner wall of the through hole, the oil liquid can permeate into the inner wall face of the through hole through the outer surface of the atomization core and is heated and atomized by the multiple heating pieces, and the heating area and the heating uniformity degree of the atomization assembly are improved.

The utility model provides commercial gas noodle cooking equipment, which belongs to the technical field of noodle cooking furnaces and comprises a water storage structure, the water storage structure comprises a concave container and a heating mechanism, the heating mechanism can spray high-temperature airflow outwards, an air inlet pipe is arranged at an air outlet of the heating mechanism, the end of the air inlet pipe penetrates through the outer wall of the concave container, and a heating cavity is arranged at the end of the air inlet pipe. High-temperature air flow of the heating mechanism can enter the heating cavity through the air inlet pipe, so that the heating cavity heats the liquid in the concave container; an exhaust assembly is arranged on one side of the heating cavity and can exhaust high-temperature gas in the heating cavity, and meanwhile liquid in the concave container cannot enter the heating cavity; the heating source is not limited to the bottom of the water tank by heating from the inside of the water tank, so that the heating area of the water source is enlarged, water in the water tank can be heated more quickly, and the heating efficiency is improved.

The utility model relates to the technical field of cloth production, in particular to a drying device for cloth processing. Comprising a drying box, an L-shaped moving plate, a shell, a first heat supply mechanism and two limiting roller mechanisms, and penetrating holes are formed in the two ends of the drying box; the front end of the drying box is open; a linear driving mechanism for driving the L-shaped moving plate to move is mounted on the drying box; the shell is connected with the inner wall of the L-shaped moving plate, the side, away from the L-shaped moving plate, of the shell is provided with an opening, and a snake-shaped airflow channel is formed in the shell; the first heat supply mechanism is used for conveying hot air into the airflow channel; the two limiting roller mechanisms are installed at the two ends of the rear side of the drying box correspondingly, each limiting roller mechanism comprises a plurality of transverse rods and a plurality of transmission rollers, the transverse rods are installed on the drying box side by side, and the transmission rollers are rotationally installed on the transverse rods correspondingly. The drying device has the advantage of being high in drying efficiency, and the utilization efficiency of energy can be greatly improved.

The utility model relates to the technical field of hot water equipment, and discloses modularized fuel gas efficient heat exchange hot water equipment which comprises a protective outer frame, a controller is embedded in the position, close to one side, of the front end of the protective outer frame, a heat exchange pipe is fixedly arranged in the protective outer frame, and the heat exchange pipe comprises a water container. A plurality of connecting strips are fixedly arranged in the water container, and fire tubes are fixedly arranged among the interiors of the connecting strips. According to the utility model, through the structural design of the fire tube and the water container, the layout of the water-in-pipe is realized, the heating area is increased, the residence time of gas in the fire tube is prolonged by the industrial grade stainless steel S-shaped welding fire tube group, the heat energy exchange efficiency is greatly improved, the modularization can be expanded in parallel, the occupied area of a single module is small, and the horizontal installation is supported; the intelligent temperature control system is suitable for various spaces, achieves accurate temperature adjustment and on-demand starting and stopping through intelligent control, is convenient to operate, safe and reliable, and is widely suitable for commercial and civil scenes.

The present application relates to the technical field of metal rubidium preparation, and particularly relates to a preparation method of metal rubidium. The present application provides a preparation method of metal rubidium, comprising the following steps: drying rubidium chloride to obtain dried rubidium chloride; mixing the dried rubidium chloride with calcium, and performing compression molding to obtain a molded material; performing vacuum thermal reduction and fractional condensation on the molded material to obtain metal rubidium; and performing fractional condensation on the metal rubidium at a condensation interval of 40-200 DEG C to obtain metal rubidium. The preparation method has high direct yield and product purity of the obtained metal rubidium.

This utility model relates to the field of heating equipment technology, and in particular to a clamp-on suspended heater, comprising a housing having a mounting cavity and a ventilation duct communicating with the mounting cavity, and a drainage hole on the outer wall of the housing; a suspension assembly mounted on the outer wall of the housing for suspending the housing; a heating assembly mounted within the mounting cavity; a ventilation assembly mounted within the mounting cavity with its outlet facing the heating assembly; and a control assembly mounted within the mounting cavity and electrically connected to the heating assembly and the ventilation assembly. This utility model facilitates quick fixing of the heater in a suitable position and reduces the impact of humid environments on the electrical circuitry.

The utility model belongs to the technical field of household appliances, and particularly relates to a heating pump for a dish washing machine. The heating pump of the dish-washing machine comprises a pump shell and a pump cover, the pump cover is connected with the pump shell, the pump cover comprises a cover body in a circular plate shape, a connecting hole is formed in the center of the cover body, an annular protrusion is arranged on the lower surface of the cover body, the heating pump of the dish-washing machine further comprises an electric heating pipe, and the electric heating pipe is embedded in the annular protrusion. The structure of the heating pump of the dish-washing machine is improved, specifically, the pump cover is improved, the electric heating pipe and the pump cover are integrally formed, and the annular protrusion is located below the pump cover, so that the heating area is increased, and better heat efficiency is achieved.

The invention relates to a graphene heating pad and a preparation method and application thereof, and belongs to the technical field of graphene automobile heating seat pads. The graphene heating pad comprises a graphene heating film layer, the graphene heating film layer comprises a graphene heating body with two free ends, a plurality of ventilation holes are formed in the periphery of the graphene heating body, the graphene heating body is arranged in a snake shape to form a snake-shaped heating wire, and the snake-shaped heating wire is arranged to avoid the ventilation holes. Porous rivets are arranged at the two free ends of the graphene heating body, the wiring harness is electrically connected with the graphene heating body, and the wiring harness is led out through the porous rivets and is communicated with a power supply. The heating area of the graphene heating body is large and uniform, the graphene heating body is coated with the upper protective film layer and the lower protective film layer, dust prevention, water prevention, friction prevention, external force prevention and the like can be achieved, and the service life is prolonged.

The utility model relates to a portable self-heating cleaning skincare towel, which belongs to the technical field of cleaning skincare towels and comprises a skincare box, a flexible heat-conducting fin is fixedly connected inside the skincare box, two sides of the inner wall of the skincare box are fixedly connected with waterproof heat-insulating blocks, and the two waterproof heat-insulating blocks are respectively arranged at two ends of the top of the flexible heat-conducting fin. The skin care towel has the advantages that heat emitted by a heating pad can be transmitted into the skin care towel body through the flexible heat conduction piece, the heat conduction efficiency can be improved, the heating area of the skin care towel body can be increased through the flexible heat conduction piece, and therefore the heating effect on the skin care towel body can be improved, and the service life of the skin care towel body can be prolonged. The self-heating cleaning skincare towel has the advantages that the self-heating cleaning skincare towel body is arranged in the skincare box, loss of heat in the skincare box is reduced by the aid of the waterproof heat-insulating block, accordingly, the service life of the skincare towel body can be prolonged, and the self-heating cleaning skincare towel can be conveniently carried by the aid of the skincare box and can be conveniently used.

This invention discloses a heated shoe and a method for processing the shoe, comprising: a shoe upper having a shoe collar with a first opening on one side; a conveying device fixedly connected to the shoe collar at the first opening, and having a plurality of probes located at the first opening; a heated lining comprising a lining fabric, a heating body, and a temperature sensor, the lining fabric being attached to the shoe upper and in contact with the foot, and the heating body being attached to the lining fabric; one end of the temperature sensor being electrically connected to the heating body, and the other end being electrically connected to the conveying device; and a power supply device detachably connected to the conveying device, comprising a power supply and a control module, the control module receiving signals from the temperature sensor to control the power supply to be turned on or off; the power supply device having a second opening corresponding to the first opening, and the probes abutting against the power supply device through the second opening. This invention provides a heated shoe and a method for processing the shoe, which has a simple structure, is aesthetically pleasing, easy and convenient to use, safe and reliable, achieves dynamic waterproofing, and enhances the user experience.

The utility model relates to the technical field of medical equipment, and discloses a portable medicine transdermal tester which comprises a machine body, a plurality of diffusion pools and a plurality of medicine feeding openings, second sliding grooves are formed in the left side and the right side of the outer wall of the machine body, and sliding plates are connected to the outer walls of the two second sliding grooves in a sliding mode. A top plate is fixedly connected to the tops of the outer walls of the two sliding plates, a first sliding groove is formed in the top of the outer wall of the top plate, a fixed baffle is fixedly connected to the top of the outer wall of the top plate, a threaded hole is formed in the outer wall of the fixed baffle, and a threaded rod is in threaded connection with the inner wall of the threaded hole. According to the utility model, the threaded rod for fixing the baffle on the top plate is operated to rotate positively and negatively to control the position of the piezoelectric valve in the sliding chute, so that liquid medicine can be squeezed into the liquid storage pipe of the piezoelectric valve in advance according to the air pressure principle, and then the liquid medicine is accurately pressed into the diffusion pool through the dosing port through the piezoelectric valve, thereby avoiding cross contamination of the liquid medicine caused by manual dosing; and the experiment credibility is improved.

The steam cabinet structure comprises a steam cabinet body, the steam cabinet body is provided with a steam chamber with an opening in the upper side, a heat collection area protruding towards the steam chamber is formed at the bottom of the steam cabinet body, and a plurality of heat pipes with cavities inside are arranged in the heat collection area. The cavity is communicated with the steaming chamber through the side wall of the heat collection area, and a heat preservation wall is arranged on the peripheral side of the steaming cabinet body in a surrounding mode. On one hand, the concave heat collection area is formed at the bottom of the steam cabinet main body, so that the heating area of the steam chamber is fully increased, and meanwhile, water in the steam chamber is additionally heated in an auxiliary manner in cooperation with the heat pipe, so that the heating efficiency of the steam chamber is improved; and on the other hand, the heat preservation wall is arranged on the peripheral side of the steam cabinet body in a surrounding mode, heat dissipated from the wall face of the steam chamber is reserved, the heat on the wall face rapidly runs off along the outer wall of the steam cabinet body, the overall heating performance of the steam cabinet is optimized in an all-around mode, and the steam cabinet is made to meet the efficient and energy-saving requirements under mobile scenes such as breakfast trucks.

This invention relates to the field of thermistor sensor technology, and particularly to a thermistor sensor with a ceramic support and a fuse, and its manufacturing method. The sensor includes a fixed base, a ceramic support mounted on the fixed base, a fuse and a thermistor respectively installed within the ceramic support, a thermally conductive ceramic plate on top of the ceramic support, a temperature-sensing aluminum cap on the top of the ceramic support, and multiple protective components at the bottom of the fixed base. A movable ring is fixedly connected to the bottom of each protective component, and a sealing component is located within the movable ring. By incorporating the ceramic support, fuse, and thermistor, the sensor features a ceramic support with strong insulation and anti-aging properties, enabling stable operation at high temperatures. The ceramic support and thermally conductive ceramic plate encase the thermistor, providing excellent heat transfer performance, resulting in a wider heating area and more accurate and rapid response, thus enabling a wider range of applications for the thermistor sensor.

The utility model relates to electronic atomization technical field, concretely is a kind of novel heating body structure.A kind of novel heating body structure, including heating pipe and heating element, the heating element has heating part and lead part, the heating pipe outer wall is equipped with accommodating cavity, the heating part is placed in the accommodating cavity, the accommodating cavity inside is filled with heat-conducting insulating material, the heating element uses independent control scheme.The utility model can reduce the influence of heating pipe base material on heating efficiency, with the advantages of compact structure, easy to assemble, simplify production process.Meanwhile, each heating element can work independently, so that the heating pipe circumferential side each heating area can be controlled respectively, improve the flexibility of use.

The utility model discloses a kind of drying device, it includes box and gas storage tank, gas diffusion plate and heating element from top to bottom being arranged in the inside of the box, the top of the box is provided with several air inlet holes, bottom is provided with several air outlet holes, the bottom of the gas storage tank is provided with several first diffusion holes, the gas diffusion plate is provided with several second diffusion holes, gas is entered into the gas storage tank from the air inlet hole and sequentially diffused to the heating element on the first diffusion hole, second diffusion hole heating, heated gas is blown out through the air outlet hole. The utility model improves the uniformity of gas distribution, so that gas heating is more sufficient, uniform, can guarantee the uniformity of product drying, can avoid the phenomenon of local overheating, so as to guarantee the drying quality of product.

The application provides a novel natural gas melting furnace, which comprises a furnace body, the top of the furnace body is connected with an environmental protection pipeline, and the bottom is provided with a discharge port; a heating mechanism, the heating mechanism comprises burners which are installed on the inner wall of the furnace body and are arranged in a circumferential direction; the input end of the burner penetrates through the furnace body and is connected with external natural gas and combustion-supporting gas respectively; a grate mechanism, the grate mechanism is located above the heating mechanism and comprises a plurality of parallel grate pipes; the two ends of the grate pipe penetrate through the side wall of the furnace body and are internally provided with hollow water channels; the plurality of grate pipes are arranged in a special shape, which is used for increasing the contact area of the support surface and the fire source. According to the technical scheme provided by the embodiment of the application, the independent grate pipes are installed in the interior of the furnace body, so that the grate pipes can form support planes in various shapes such as wave shape, triangle, U shape and trapezoid, thereby effectively increasing the heating area and improving the smelting efficiency of the ore.

The utility model relates to the technical field of biological fermentation equipment, in particular to a corn steep liquor heating tank which comprises a tank body, a stirring device is arranged in the tank body, a heating assembly is arranged at the bottom of the stirring device, the stirring device comprises a stirring shaft, and a stirring mechanism is arranged at the bottom of the stirring shaft. The stirring shaft comprises an outer shaft and an inner shaft which are fixedly sleeved together, and the inner shaft extends out of the outer shaft; the stirring mechanism comprises a stirring rod and an anchor type stirring paddle, the stirring rod is installed on the outer shaft through a fixing sleeve and located in the middle of the tank body, and the anchor type stirring paddle is located at the bottom of the stirring rod. According to the utility model, when the stirring shaft rotates, the stirring rod is matched with the anchor type stirring paddle, so that corn steep liquor can be better stirred uniformly; the heating area of corn steep liquor in the tank body is increased, the heating time is shortened, and resources are saved.

The invention discloses a wire winding sheet heating body, which relates to the technical field of heaters, and comprises a carrier seat, a heating wire and a heat transfer sheet, the middle part of the carrier seat is a mounting part, the heating wire is wound on the mounting part and forms a heating part, two ends of the heating wire extend out of the mounting part and are used for being connected with a wire, and the heat transfer sheet is mounted on the carrier seat. The heat transfer piece covers at least one side of the heating part and is tightly attached to the outer surface of the electric heating wire. The heating device is simple in structure and convenient to machine, and the heating function can be achieved with low power.

This invention relates to the field of cooking equipment technology, and more particularly to a spherical cooking equipment with distributed steam control. The technical solution includes a central interlayer fixedly installed on the outer wall of the spherical cooker. An air inlet branch pipe connects the air inlet end to the central interlayer. A first and second heat-expanding pipe, connected to the central interlayer, are fixedly installed on the inner wall of the spherical cooker. Both the first and second heat-expanding pipes adopt a conical vortex structure and are attached to the inner wall of the spherical cooker. This invention increases the heating area of ​​the material through the first and second heat-expanding pipes. Furthermore, the inclined arrangement of the first and second heat-expanding pipes generates an oblique force along the spherical surface on the material near the air inlet and outlet ends during rotation. This forcefully pushes the material in the low-speed zone towards the center and upper part of the spherical cooker, allowing material that was not originally turning to enter the high-speed turning zone, thus compensating for the deficiencies of insufficient linear velocity and weak turning near the rotating shaft.

The utility model belongs to the technical field of engines, and discloses an oil pan assembly which comprises an oil pan body, a heating part and an oil stirring assembly, an oil containing cavity is formed in the oil pan body, and the heating part is located in the oil containing cavity and used for heating engine oil in the oil containing cavity. The oil stirring assembly comprises stirring blades located in the oil containing cavity and a driving part located outside the oil pan body, and an output shaft of the driving part extends into the oil containing cavity and is connected to the stirring blades, so that the driving part can drive the stirring blades to rotate so as to stir engine oil in the oil containing cavity; according to the engine oil preheating device, the heating piece heats engine oil in the oil containing cavity, meanwhile, the output shaft of the driving piece drives the stirring blade to rotate, so that the stirring blade stirs the engine oil in the oil containing cavity, the engine oil in the oil containing cavity is heated more uniformly, the engine oil preheating efficiency is improved, and the engine oil preheating time is shortened.

The utility model relates to a kind of drying device for chelating agent, belong to chelating agent drying technical field.Dry cylinder is arranged between left side support plate and right side support plate, the outside of left side support plate is provided with rotating structure, heating structure is provided on right side support plate, vibration filtering structure is provided on bottom support.The utility model has the beneficial effect that:the heating rod in the patent is distributed in multiple positions in chelating agent, thereby increasing the heating area of chelating agent, improving the efficiency of heating drying, solve the problem that heating plate in prior art is located in the side of material cylinder, leading to the drying efficiency of chelating agent is not high, when cylinder rotates, heating structure is in stationary state, solve the problem that heating plate in prior art swings, the wire on heating plate also swings and leads to easy to fall off, improve the stability of device, filter chelating agent after drying by vibration filtering structure, improve the quality of chelating agent.

The utility model discloses a miniature electric heating tube for small household appliances, which comprises a tube body, an end cover is arranged at the open end of the tube body, an insulating support rod is arranged at one end, facing the tube body, of the end cover, an electric heating wire is arranged on the insulating support rod, an insulating filler is arranged in a gap between the electric heating wire and the inner wall of the tube body, and the insulating filler is arranged in the gap between the electric heating wire and the inner wall of the tube body. Two ends of the heating wire are respectively connected with two pins, two through holes are arranged on the end cover, and one ends of the two pins respectively extend out of the two through holes. The electric heating tube has the advantages that the electric heating wire is wound on the insulating supporting rod, electric isolation is achieved, short circuit caused by direct contact between the electric heating wire and the tube body is prevented, and safety is improved. A gap between the heating wire and the inner wall of the tube body is filled with an insulating material, so that the insulating property is enhanced and element wear caused by vibration is reduced. Compared with a traditional miniature electric heating tube, the miniature electric heating tube with the optimized structural design has the advantage that the safety and the stability are effectively improved.