39results about How to "Improve warm-up effect" patented technology

The invention relates to the technical field of high-frequency preheating, and discloses a high-frequency preheating device for coating a multi-strand stranded enameled wire core, which comprises a main machine body, a preheating mechanism is arranged outside the main machine body, a mounting chamber is formed in the back surface of the main machine body, and a heat dissipation mechanism and an air guide mechanism are arranged inside the mounting chamber; the heat dissipation mechanism is used for conducting heat dissipation on the interior of the mounting chamber, the air guide mechanism is used for controlling the air outflow direction in the mounting chamber and controlling the air outlet to be switched between external air and the interior of the preheating mechanism, and a temperature sensor is fixedly connected to the interior of the mounting chamber; the preheating mechanism is used for preheating the metal wire core; by controlling the adjusting plate, the adjusting plate can conveniently and selectively seal the inner air cavity or the outer air cavity to adjust the air in the mounting chamber to flow out through the air outlet or flow out through the wire outlet through the outer thermal insulation box, so that different effects are achieved, the use flexibility of the device is effectively improved, and the use diversity of the device is effectively guaranteed.

The invention relates to the technical field of sintering furnaces, and provides a sintering oven furnace for sintering polytetrafluoroethylene and a sintering method of the sintering oven furnace. Air blowers are installed on the two sides of the furnace body, a connecting pipe is installed on the top of the furnace body, a sliding rail is movably installed in the furnace body, and a frame is fixed to the top end of the sliding rail. Through the arrangement of the main disc and the base fixed to the top of the main shaft, when the main shaft rotates, the main screw and the main disc on the main screw rotate at the same time, the main disc rotates at the top of the frame to drive the secondary disc to pass through teeth on the secondary screw and a lower chuck of the secondary disc to rotate, and the secondary disc rotates by 60 degrees every time the main disc rotates by one circle; the polytetrafluoroethylene product close to the center position is rotated to the outer side, so that the product above is in full and uniform contact with hot air, the effect of uniform heating of the sintering oven is achieved, the sintering quality and uniformity of the product are guaranteed, and the production efficiency is improved.

The utility model relates to a reaction device, and particularly discloses a photocatalytic reduction CO2 reaction device which comprises a water tank, a light source emitter and a heating seat, a heating cylinder is arranged at the upper end of the heating seat, a reaction container is arranged at the upper end of the water tank, a first flow guide pipe and a second flow guide pipe are arranged between the heating seat and the reaction container, and a support is arranged in the reaction container. A catalyst cylinder is arranged at the upper end of the support, and spiral blades are arranged on the outer side of the catalyst cylinder, fixedly connected with the catalyst cylinder and arranged on one side of the first flow guide pipe and one side of the second flow guide pipe. Carbon dioxide and water vapor are input into the reaction container through the two flow guide pipes, and the carbon dioxide and the water vapor entering the reaction container spirally flow along the surfaces of the spiral blade and the catalyst cylinder under the guidance of the spiral blade, so that the carbon dioxide can be in full contact with the water vapor, and the carbon dioxide can fully react with the catalyst cylinder; and the reaction efficiency of the photocatalytic reduction CO2 reaction device is improved.

This utility model discloses a high-temperature steam waste heat recovery and reuse device for deodorization towers, comprising: a deodorization tower body, an mounting base fixedly installed on the outer wall of the deodorization tower body, a preheating box fixedly installed on the top wall of the mounting base, an oil storage tank fixedly installed inside the preheating box, a steam pipe fixedly installed at the top of the deodorization tower body, a diverter fixedly installed at the end of the steam pipe away from the deodorization tower body, a first spiral heat-conducting pipe fixedly installed on the diverter, and a second spiral heat-conducting pipe fixedly installed on the diverter, the first spiral heat-conducting pipe being sleeved on the outer wall of the oil storage tank, and the second spiral heat-conducting pipe being installed in the inner cavity of the oil storage tank. This utility model realizes the utilization of waste heat from the high-temperature steam of the deodorization tower, preheating the edible oil to be deodorized, thus greatly reducing the heating time required for the edible oil to be deodorized during deodorization processing and improving the efficiency of edible oil deodorization processing.

The utility model relates to the technical field of waste gas treatment, in particular to a VOC waste gas catalytic pretreatment device which comprises a base, a combustion furnace is fixedly mounted on the top surface of the base, an exhaust pipe is mounted at the top end of the combustion furnace, a combustor is mounted at the bottom of the combustion furnace, and a catalytic bed is mounted at the upper part of the combustion furnace; a preheating cylinder is arranged on the periphery of the combustion furnace, and a spiral partition plate located in the preheating cylinder is fixedly installed on the periphery of the combustion furnace. The periphery of the combustion furnace is provided with an air inlet. The periphery of the preheating cylinder is fixedly connected with an air inlet pipe assembly. Through the arrangement of the preheating cylinder, heat in the combustion furnace can be radiated into the preheating cylinder to preheat waste gas in the preheating cylinder, so that the temperature of the waste gas is increased, and the cost of the treatment process is reduced; and the spiral ventilation cavity is formed between the preheating barrel and the combustion furnace through the spiral partition plate, so that the moving path of the waste gas in the preheating barrel is prolonged, the preheating time of the waste gas in the preheating barrel is prolonged, and the preheating effect of the waste gas is improved.

This invention relates to a twin-body kiln structure, comprising a kiln I with a chimney I and a kiln II with a chimney II. Chimney I and chimney II are connected by a connecting pipe, which houses a fan. Kiln I has a flow guiding mechanism I corresponding to chimney I, and kiln II has a flow guiding mechanism II corresponding to chimney II. Both kiln I and kiln II are also fitted with jackets on their outer sides, forming insulation chambers between the jackets and their respective kilns I and II. One-way exhaust pipes communicating with the corresponding insulation chambers are installed on the side walls of both kiln I and kiln II. Exhaust pipes connected to the corresponding chimneys I and II are installed on the insulation chambers. This invention effectively recovers heat from the exhaust gases from kiln I and kiln II, achieving energy conservation.

The utility model discloses production equipment for an electronic-grade polycrystalline silicon packaging protective film, belongs to the technical field of film processing, and aims to solve the technical problems that the angles among multiple layers of raw material films are too large before the protective film is compounded, the preheating of the multiple layers of raw material films is not facilitated, and the compounding effect is reduced in the prior art. The production equipment of the electronic-grade polycrystalline silicon packaging protective film comprises a fixed shell, the raw material film rollers are arranged at one end in the fixed shell; the number of the raw material film rollers is at least two; the finished product film roller is arranged at one end, far away from the raw material film roller, in the fixed shell; the positioning pressing roller and the movable pressing roller are arranged at the position, close to the finished product film roller, in the fixed shell, and a driving mechanism used for driving the movable pressing roller to be close to the positioning pressing roller is arranged on the fixed shell; the guide rollers are arranged in the fixed shell and close to the raw material film roller; and a pair of guide rollers are arranged. The production equipment for the electronic-grade polycrystalline silicon packaging protective film has a relatively high pressing effect and is high in adaptability.

This utility model relates to the field of blast furnace pulverized coal injection technology, specifically a blast furnace pulverized coal injection preheating system, including a conveying pipe. A heat exchange pipe is sleeved on the upper part of the outer wall of the conveying pipe, and an electric heating tape is wound around the lower part of the outer wall of the conveying pipe. During operation, the hot blast and waste air generated during blast furnace smelting are introduced into the heat exchange pipe through the air inlet pipe, exchanging heat with the conveying pipe to preheat the pulverized coal inside the conveying pipe. This improves energy utilization and reduces waste. The heat generated by the electric heating tape and the insulation effect of the insulation cotton keep the lower half of the conveying pipe at a high temperature, further improving the preheating effect, increasing the temperature of the pulverized coal, reducing the heat absorbed by the pulverized coal after entering the blast furnace, and improving the blast furnace thermal efficiency. Furthermore, when the hot blast and waste air supply is unstable, hot air generated by an external hot air fan can be introduced into the air inlet pipe to ensure stable heat exchange, making the preheating temperature more stable, thereby effectively improving preheating efficiency and energy utilization.

The invention relates to the technical field of heat pump system control, and provides a heat pump compressor crankshaft heating band preheating control method, device and equipment, and the method comprises the steps that the power supply state of a heat pump and the operation state of a compressor are judged; executing a first warm-up control mode when the heat pump is switched from the power-off state to the power-on state; the preheating index temperature is monitored, when the preheating index temperature continuously meets the first preset condition within the specified duration, a crankshaft heating band is started for preheating, starting of the compressor is forbidden in the preheating period, and preheating is stopped until the second preset condition is met; when the heat pump continuously supplies power and the operation state of the compressor is a closed state, a second preheating control mode is executed; and the environment temperature and the accumulative shutdown duration of the compressor are monitored, the preheating duration is determined according to the environment temperature and the accumulative shutdown duration, and the crankshaft heating belt is controlled to conduct preheating according to the preheating duration. According to the mode, the preheating effect is improved, the energy consumption is reduced, and the reliability of the compressor and the heat pump system is further improved.

The utility model relates to an automobile air conditioner blower impeller assembly preheating device, which belongs to the technical field of automation control and comprises a heating bin, an air guide cover is fixedly mounted at the lower end of the heating bin, one end of the air guide cover is communicated with the heating bin, an industrial hot air gun is fixedly mounted on the inner side of the air guide cover, and a top cover is rotatably connected to the upper end of the heating bin. A heating area sensor is fixedly installed on the inner side wall of the heating bin, an impeller induction sensor is fixedly installed on the inner side wall of the heating bin, and an infrared temperature detection sensor is fixedly installed on the inner side wall of the heating bin. According to the automobile air conditioner blower impeller assembly preheating device, a blower impeller placed in the heating bin can be preheated through the air cylinder, the connecting rod and the placing ring, the press-fitting process of the automobile air conditioner blower impeller in a low-temperature environment is improved, the stability of the press-fitting process is improved, product defects caused by environment temperature changes are eliminated, and the product quality is improved. And the product quality is improved.

The utility model discloses a novel wastewater light component removal tower structure which comprises a light component removal tower, the bottom end of the light component removal tower is connected with a reboiler, the light component removal tower is in the shape of a cylindrical tank, the light component removal tower is formed by sequentially connecting a top shell, an adsorption shell, a plurality of slow flow shells and a bottom shell from top to bottom, the top shell is in the shape of a cylindrical shell with an opening in the bottom end, and the adsorption shell is connected with the slow flow shells. The adsorption shell and the flow slowing shells are each in a cylindrical shell shape with openings in the upper end and the lower end, and the bottom shell is in a cylindrical shell shape with an opening in the top end. The edge of the bottom end of the top shell, the edges of the two axial ends of the adsorption shell, the edges of the two axial ends of the slow flow shell and the edge of the top end of the bottom shell are all provided with connecting flanges and are in bolt connection through the connecting flanges. An adsorption assembly is arranged in the adsorption shell, and a flow guide part is arranged below the adsorption assembly; a plurality of blocking pieces are arranged in the flow slowing shell and arranged at equal intervals in the axis direction of the flow slowing shell.

The application discloses a duct capable of switching ventilation modes and relates to the field of ventilation devices. The duct capable of switching ventilation modes comprises a ventilation duct body, a lower-layer air outlet and an upper-layer air outlet are respectively arranged at the bottom and the top of the ventilation duct body, a fixed upper-layer diaphragm is arranged in the ventilation duct body, a movable partition layer is arranged in the ventilation duct body, and one side of the partition layer is fixed to the ventilation duct body. The duct capable of switching ventilation modes is designed in two ventilation modes for precise ventilation of a traditional pipeline, the two ventilation modes can be switched, the direction of the air outlet can be adjusted, fresh air can directly blow to pigs in spring and autumn, direct blowing to the pigs can be avoided in winter, meanwhile, the travel of the fresh air in the pipeline is increased in the winter mode, the preheating effect of the fresh air is improved, and the cold stress probability of the pigs is reduced.

The invention relates to a heat transfer strengthening structure, a heat transfer strengthening pipe, a preheating device and application. The heat transfer strengthening structure comprises a coal water slurry pipe and at least one protrusion distributed on the inner wall of the coal water slurry pipe. The ratio of the height of the protrusions to the inner diameter of the coal water slurry pipe is (1-8): 50. The heat transfer strengthening pipe comprises the heat transfer strengthening pipe structure. The preheating device comprises a shell and the heat transfer strengthening pipe located in the shell. According to the heat transfer strengthening structure, the protrusions are arranged on the inner wall of the coal water slurry pipe and serve as inner wall face modification, blockage during flowing of the coal water slurry is prevented, and heat transfer strengthening is facilitated.

The application discloses a high-tower granulation industrial waste heat recovery feeding device, and relates to the technical field of heat recovery.The device comprises a preheating bin, a separate sleeve layer, a storage cavity, a slow-flow bin, a material flow channel, a feeding pipe and an adjusting structure.In the application, the material flows into the slow-flow bin through the feeding pipe and then reversely flows out from the channel between the inner wall of the slow-flow bin and the feeding pipe.The sudden reversal of the flow direction not only effectively reduces the material flow rate, but also makes the material strongly mix under the action of turbulent flow, breaks the stagnant dead zone of the traditional container center area, and improves the overall preheating effect, since the slow-flow bin and the variable-speed design slow down the overall flow rate of the material in the annular material flow channel, increase the residence time, and ensure that the heat of the heat-conducting medium can fully penetrate the material layer.

The present application relates to injection molding machine technical field, specifically is related to a kind of servo injection molding machine with quick preheating function;Including: rack;Injection molding module, horizontal fixedly arranged on the rack, the injection molding module is equipped with the material guiding pipe capable of transmitting molten material and the push rod capable of continuously pushing material;Feeding module, vertically arranged on the injection molding module and the feeding end is communicated with the material inlet of the material guiding pipe;Heating module, coaxially fixedly arranged outside the material guiding pipe and close to the discharge port of the material guiding pipe setting;Preheating module, coaxially fixedly arranged outside the material guiding pipe and close to the material inlet of the material guiding pipe setting, the preheating module is equipped with the air supply pipe capable of continuously guiding heat source towards the material inlet of the material guiding pipe;The present application can not only efficiently dehumidify material and efficiently preheat material, and the dehumidification effect is good, and preheating efficiency is high.

This utility model discloses a copper foil composite heat insulation pressing device, including a base and a fixed frame disposed on the top of the base. Two first guide rollers distributed vertically are rotatably connected to the inner cavity of the fixed frame near the left side. In use, through the linkage of a first servo motor, a first threaded rod, a first threaded sleeve, a sliding rod, a sliding groove, a traction rod, and an arc-shaped limiting plate, the horizontal distance between the two arc-shaped limiting plates can be adjusted according to the width of the copper foil. Thus, when the copper foil passes between the two first guide rollers, it can be corrected and limited, thereby preventing the copper foil from slipping and tilting during the traction process. In addition, through the setting of a first slot, a first arc-shaped plate, a second slot, and a second arc-shaped plate, the copper foil can be corrected during the conveying process. At the same time, the heating efficiency of the heating roller can be effectively improved, thereby improving the pressing effect on the copper foil.

The utility model relates to the field of laser cladding preheating, in particular to a laser cladding preheating device with a heat preservation mechanism, which comprises a base, and a preheating cylinder is mounted on one side above the base. The inner threaded cylinder rotates and pushes the first screw rod to move, so that the connecting plate drives the position of the heating rod to change, adjustment is achieved according to the size of materials, part of the heating rod can be started through independent control over the heating rod, and therefore the heat preservation effect is achieved; through the structure, the equipment can be correspondingly adjusted according to the size of a material, so that the preheating effect is improved, preheating can be fully automatically carried out in the process, and after preheating is completed, the energy consumption can be greatly reduced while the heat preservation effect is achieved by reducing the starting number of the heating rods, so that the energy consumption is reduced. In addition, the preheating uniformity can be greatly improved through rotary heating in the heating process, and finally the later maintenance cost of the equipment can be greatly reduced through modularization of the heating rods.

The invention discloses an MVR (mechanical vapor recompression) evaporation crystallizer, which belongs to the technical field of evaporation crystallizers, and comprises an evaporation crystallizer body, a discharge pipe is inserted on the bottom wall of the evaporation crystallizer body, and a preheating assembly is arranged on the top wall of the evaporation crystallizer body; the preheating assembly comprises a heating box fixedly installed on the evaporation crystallizer body, a water inlet pipe is inserted into the heating box, a communicating pipe communicated with the evaporation crystallizer body is inserted into the bottom wall of the heating box, a spiral pipe is fixedly installed on the inner wall of the heating box, and a water outlet pipe is inserted into the spiral pipe. And a compressor is fixedly mounted on the side wall of the evaporation crystallizer body. According to the scheme, an impeller is arranged, water vapor can drive the impeller to rotate in the process of passing through the impeller, then a first cleaning rod and a second cleaning rod can be driven to rotate through a rotating rod in the rotating process of the impeller, and bristles are driven to clean dirt on the surface of a spiral coil, so that the preheating efficiency of waste water is improved; therefore, the wastewater evaporation efficiency can be improved.

This utility model relates to the field of waste incineration technology, specifically to a heat recovery structure for a pyrolysis gasification furnace. The heat recovery structure for a pyrolysis gasification furnace includes: a pyrolysis gasification furnace; a support frame, the support frame being disposed on one side of the pyrolysis gasification furnace; and an auger conveyor, the auger conveyor being mounted on the support frame, the auger conveyor including a conveying pipe and an auger shaft disposed within the conveying pipe. The beneficial effects of this utility model are: this device covers the outside of the conveying pipe of the auger conveyor with a heating hood, and connects the exhaust port of the pyrolysis gasification furnace to the sealed chamber between the heating hood and the conveying pipe through an inlet pipe, allowing high-temperature flue gas to directly fill the sealed chamber, and then heat the conveying pipe through heat conduction, thereby achieving preheating treatment of the waste in the conveying pipe. This not only effectively recovers the heat energy in the flue gas and reduces heat loss, but also ensures that the waste reaches a higher temperature and a drier state before entering the pyrolysis gasification furnace.

This utility model relates to the field of shipbuilding technology, and in particular to a heating device for welding and installing shipboard passageway pipe fittings. It includes a first fixing plate, on which two second fixing plates are symmetrically fixed. Electric heating tubes are fixed to the opposite sides of each of the two second fixing plates. A fixing column is fixed to the first fixing plate, which is positioned between the fixing column and the two second fixing plates. A reciprocating reverse drive mechanism is fixed to the end of the fixing column furthest from the first fixing plate. In use, the two reciprocating electric heating tubes simultaneously preheat the inner and outer walls of the passageway pipe fitting, ensuring that the preheating of the inner and outer walls is not sequential, thereby improving the uniformity of preheating and ultimately enhancing the preheating effect.

The double-circulation perlite ore sand gradient preheating system utilizing the waste heat of the tail gas of the fuel gas expansion furnace is provided with the double-return-stroke channels, the material heating time is prolonged, the heating temperatures of the double-return-stroke channels are different, low-temperature preheating is conducted firstly, then medium-temperature preheating is conducted, and the heating efficiency is improved. And most free water and part of bound water in the ore sand are removed more slowly and mildly. According to the technical scheme, an outer-layer material channel is formed between an outer pipe and a middle pipe, and a first spiral conveying structure is arranged on the inner wall of the outer-layer material channel; an inner-layer material channel is formed between the middle pipe and the inner core pipe, and a second spiral conveying structure is arranged on the inner wall of the inner-layer material channel; the heating cavity consists of an inner cavity of the inner core tube; and the rotating direction of the first spiral conveying structure is opposite to that of the second spiral conveying structure, so that materials are conveyed from the first end to the second end in the outer-layer material channel, enter the inner-layer material channel from the second feeding hole in the second end and are conveyed from the second end to the first end in the inner-layer material channel.

The invention discloses a reactor for producing pineol with an alarm function, and relates to the technical field of alarm devices. The reactor for producing pineol with an alarm function comprises a reactor body and a temperature control alarm device. The reactor for producing pineol with an alarm function enables the stirring plate to reciprocate along the rotating tube while the stirring plate revolves along the rotating shaft, so that the stirring efficiency is higher and the effect is better, and the temperature sensor can rotate and move up and down together with the stirring plate, so that the detection of the raw material temperature is more accurate and reliable; when it is detected that the temperature of the material is too high, an alarm can be given in time through an alarm device, and a coolant can be allowed to enter the stirring plate for rapid cooling, and when the subsequent material is to be produced, the coolant after absorbing heat can be used to preheat the material, so that the waste heat can be recycled, which is more energy-saving and environmentally friendly.

The application relates to the field of laser cutting, and particularly discloses a laser cutting device for automobile mudguards, which comprises a machine tool, a cross beam is slidably arranged on the machine tool, a cutting head is slidably and liftably arranged on the cross beam, a clamping piece for fixing a mudguard is arranged on the machine tool, an air suction pipe is arranged on the machine tool, a fan is arranged at the bottom of the machine tool, a threaded rod is rotatably arranged on the side wall of the cross beam, a fixing plate is threadedly connected to the threaded rod, the air suction pipe is arranged on the fixing plate, a synchronizing piece for driving the air suction pipe to move is arranged on the machine tool, and a lifting piece for lifting the air suction pipe is arranged on the machine tool. The application has the effects of strengthening the cooling effect on the cut mudguard, reducing the emission of toxic gas and smoke generated during cutting, and improving the safety of workers.

This invention discloses an organic waste gas RTO regenerative thermal oxidation treatment device and method for waterproof membrane production in the field of waste gas treatment technology. It includes an annular heat storage block, a combustion chamber, an external drive mechanism, an external membrane production machine, an external waste gas emission mechanism, an external waste gas storage machine, and an airflow distribution chamber. The waste gas emission mechanism is connected to both the waste gas storage machine and the airflow distribution chamber. Based on the rate at which the waste gas is generated by the membrane production machine, this invention selects whether to treat the waste gas directly or to store a certain amount of waste gas before treatment, reducing wear and tear on the waste gas storage machine, minimizing waste gas leakage, and increasing treatment efficiency. Furthermore, the annular heat storage block circulates through waste gas, air, and tail gas, enabling this invention to complete the heat storage-recirculation-preheating cycle within a single heat storage chamber, avoiding repeated valve switching, reducing process complexity, and improving process stability.

The utility model belongs to the technical field of motor production equipment, and particularly relates to a motor stator welding device which comprises a machine body provided with a stator clamping mechanism. The welding mechanism is arranged on the machine body and located on the rear side of the stator clamping mechanism; the machine further comprises a preheating mechanism, the preheating mechanism is arranged on the machine body and located above the stator clamping mechanism, and the preheating mechanism can preheat the stator on the stator clamping mechanism; the cleaning mechanism is arranged on the machine body and located on the front side of the stator clamping mechanism, and the cleaning mechanism comprises a cleaning roller used for cleaning the surface of the stator; wherein the stator clamping mechanism can drive the stator to rotate, the cleaning mechanism can move in the horizontal direction, the preheating mechanism can move in the vertical direction, and compared with the prior art, the welding strength and stability of the motor stator are improved, and the welding quality and performance are improved.

The invention relates to the technical field of LNG sampling, and discloses a precise controllable LNG sampling gasification device which comprises a sampling pump, a sampling pipe is arranged at one end of the sampling pump, a conveying pipe is arranged at the other end of the sampling pump, a gasifier is arranged at the end, away from the sampling pump, of the conveying pipe, and an exhaust pipe is arranged at the top end of the gasifier. And a heater is arranged in the reservoir at the lower part of the gasifier. A motor drives a driving rod to rotate, a vertical rod is driven to rotate through transmission of a bevel gear, a double-sided gear and a driven wheel, then a top plate and a plurality of spiral stirring rods are driven to rotate around the vertical rod, shifting rods rotate along with the driving rod to indirectly shift bottom plates on the two sides, and then threaded rods and the spiral stirring rods are driven to rotate; the effect of uniformly mixing the liquefied natural gas is achieved, the centrifugal force of traditional stirring is broken through, separation of the natural gas due to centrifugation is avoided, and water bath heating is more uniform.

The rotary feeding device for the electric arc furnace comprises a feeding rotary pipeline and a base, a spiral track is arranged in the feeding rotary pipeline, the exterior of the feeding rotary pipeline is connected with the base through a rotating device, and the rotating device drives the feeding rotary pipeline to rotate along the axis of the pipeline. The feeding rotary pipeline and the horizontal plane form an inclined angle, and the arrangement height of a feeding port of the feeding rotary pipeline is larger than that of a discharging port of the feeding rotary pipeline. The waste steel preheating device has the beneficial effects that the problems that in the prior art, waste steel is heated unevenly, and the heating effect is poor are solved, the waste steel is rotated through the feeding rotating pipeline, hot air can fully heat the waste steel, and the preheating effect is effectively improved. And on the basis, the overall structure of the feeding device is further designed and adjusted, so that the feeding device can stably rotate and operate, feeding operation is facilitated, the working efficiency of electric arc steelmaking is effectively improved, and the feeding device is suitable for popularization and application.

The utility model discloses a high accuracy circuit board zinc spraying processing device, including the processing station and setting in the processing station bottom's support box, still include preheating box, the top of preheating box is installed in infrared preheating module in parallel, spray coating box body, spray coating box body sets up the processing station top of preheating box one side, just the top of spray coating box body is installed electric telescopic handle, and the output of electric telescopic handle extends to the inside of spray coating box body and is connected with the top of movable support plate shield, just the movable support plate top of shield inboard evenly installs micro - electric telescopic handle, and the output of every micro - electric telescopic handle all extends to the below of movable support plate and is connected with the spray head. The utility model accurate control micro - electric telescopic handle, drive the spray head adjustment height, ensure that every spray head and the distance of the surface of the circuit board to be processed are consistent. Effectively solved the problem of uneven spraying caused by the uneven surface of the circuit board, improved the spraying quality and precision.

The invention belongs to the technical field of cement production, and particularly relates to a cement raw material calcining device and method based on high-strength sulphoaluminate cement. The top end of the preheating furnace fixedly communicates with a feeding funnel; the preheating mechanism is arranged in the preheating furnace; the high-temperature furnace is communicated with the preheating furnace; the stirring mechanism is arranged in the high-temperature furnace; the cooling furnace is communicated with the high-temperature furnace, and the bottom end of the cooling furnace is fixedly communicated with a discharging pipe through a discharging funnel; and the heat exchange mechanism is arranged in the cooling furnace and communicates with the preheating mechanism. The device can recover the heat of the cement clinker and preheat the cement raw material by using the recovered heat, so that the energy waste is avoided, and the cost input in the cement production process is reduced.

The utility model discloses energy-saving aluminum ore calcining equipment, and relates to the technical field of calcining equipment, the energy-saving aluminum ore calcining equipment comprises a gas collector, a rotary kiln, a discharge bin and a preheater, the preheater comprises a shell and a plurality of partition plates; a feed port and an exhaust port are formed in the top of the shell, and the exhaust port is connected with an inlet of the gas collector through an exhaust pipeline; a discharge port is formed in the bottom of the shell and is connected with an inlet of the discharge bin; an air inlet is formed in the bottom of the shell and connected with the rotary kiln through an air inlet pipeline. The multiple partition plates are connected to the two opposite inner walls of the shell in a crossed mode, and the two opposite sides of the partition plates abut against the other two inner walls of the shell. According to the energy-saving aluminum ore calcining equipment, after high-temperature gas generated in the calcining process of the rotary kiln is introduced into the preheater, the high-temperature gas can circulate in the shell in a snakelike path, the circulating path of the high-temperature gas in the preheater is prolonged, the high-temperature gas makes full contact with uncalcined materials, and therefore the preheating time of the uncalcined materials is prolonged, and the energy-saving effect is achieved. The preheating effect is improved.