25 results about "Hot blast" patented technology

The electronic element and device powder covering machine based on one heating mechanism with wind direction and wind speed control includes one frame, one fluidized bed, one heating mechanism and one powder soaking mechanism. The heating mechanism includes one heating furnace, one heat flow homogenizing mechanism on the heating furnace, and one heating and insulating box. The heating furnace is provided with heating elements and a hot blast circulating passage; the heating and insulating box includes a wind hood, a centrifugal fan, an inner container and a casing. The present invention is used to heat electronic element and device with hot blast in the temperature uniformity within 1 deg.c.

The invention relates to a hydrogen-rich oxygen blast furnace ironmaking method, which comprises the steps of circulating a furnace top coal gas of an oxygen blast furnace into a coal gas upgrading and heating furnace, converting CO2 into CO, then feeding the CO into the oxygen blast furnace from the middle part and the lower part, feeding an upgraded coal gas from the lower part, and then feedinghydrogen at the same time, so that the reduction reaction efficiency in the oxygen blast furnace is improved, and the dosage of carbon coke and the dosage of pulverized coal are greatly reduced. A feeding device of the coal gas upgrading and heating furnace is improved, so that a reaction situation of the pulverized coal can be controlled in real time, the components of the upgraded coal gas fedinto the oxygen blast furnace can be reasonably controlled, the furnace top coal gas are recycled on the whole, and smelting heat is fully utilized.

The invention relates to a paint spraying and drying integrated room for robot operation. The paint spraying and drying integrated room for robot operation comprises a room body and a circulating air module, the room body is provided with a conveying rail extending into a paint spraying and drying room, and a driving device and a tensioning device are arranged at the two ends of the conveying rail respectively. The conveying rail is provided with a workpiece supporting plate in a sliding connection mode. The paint spraying and drying room is connected with the circulating air module in a penetrating manner. An air supply box is arranged in the circulating air module, and is provided with an air supply pipe connected with the paint spraying and drying room through a pipeline. The paint spraying and drying room is provided with a dynamic pressure chamber which communicates with the air supply pipe. The dynamic pressure chamber is arranged in the paint spraying and drying room and communicates with a static pressure chamber, and the static pressure chamber communicates with an inner cavity of the paint spraying and drying room. An exhaust covered channel is formed below the paint spraying and drying room, the exhaust covered channel communicates with an exhaust chamber, and the exhaust chamber is provided with a hot air circulating pipe which is connected with an air supply box pipeline. According to the paint spraying and drying integrated room for robot operation, three filter layers are used for treating paint mist, and activated carbon is used for adsorbing, replacing and desorbing VOCs in waste gas; and the paint spraying and drying room is connected with the circulating air module for drying and exhausting circulation.

The invention relates to a lead-zinc oxide ore recycling and harmless treatment system and method, and belongs to the technical field of lead-zinc oxide ore treatment. The lead-zinc oxide ore recycling and harmless treatment system comprises a preheating unit, a pre-decomposition furnace, a rotary kiln and a cooling machine, wherein lead-zinc oxide ore is added from the preheating unit, and entersthe pre-decomposition furnace after being heated by direct contact preheating or indirect contact heat exchange with flue gas, the temperature of the material is further increased, and the material enters the rotary kiln to be subjected to a reduction volatilization reaction; zinc oxide smoke dust produced by reduction and volatilization in the rotary kiln is enriched and then recycled; and secondary hot air and low-temperature harmless slag are produced after slag produced by the rotary kiln is cooled by the cooler, the secondary hot air is sent to the pre-decomposition furnace, is used fordrying the material and is recycled by a waste heat boiler, and the harmless slag can be used for producing building materials. According to the lead-zinc oxide ore recycling and harmless treatment system and method, waste heat of flue gas and slag is fully recycled, the advantage of a large specific surface area of powder is fully utilized, the heat exchange and reduction volatilization speeds are increased, the lead-zinc oxide ore treatment capacity and the heat energy utilization rate are greatly increased, and the production cost is reduced.

The invention discloses a drum type hot-blast stove which is characterized in that heat exchange tubes of heat exchangers of the stove are of a structure that drums are circumferentially and uniformly distributed, the drums rotate and roll at low speed when in use, the heat exchange tubes are uniformly heated, dust does not accumulate on the surfaces, flue gas channels are smooth, the drum type hot-blast stove cannot be burned out due to too high temperature and cannot be eroded due to too low temperature, and biofuel such as coal, waste crops and the like can be used as energy sources. Air ducts and flues are of reverse flow structures, i.e. cold air flows from a low-temperature area to a high-temperature area, so that heat which is released by fuel burning is effectively switched; left and right bellows can be freely removed, so as to facilitate the maintenance of the heat exchangers in the stove; second high-temperature air supply is adopted in a hearth, so as to guarantee sufficient burning of the fuel; the drum type hot-blast stove is mainly used for drying or heating products, heating for enterprise units and heating for production and cultivation and has the using effects of energy conservation, high efficiency and durability.

The invention discloses a portable woodworking edge bonding machine. The portable woodworking edge bonding machine comprises a base plate, a strip winder, an adjustable guide groove, pressing wheels,an adjustable baffle and a hot air device, wherein the strip winder is arranged at the upper part of the base plate and is used for storing a working object, the adjustable guide groove is formed in the lower part of the strip winder and is connected to the base plate, at least one pressing wheel is arranged at the lower part of the adjustable guide groove, shafts of the pressing wheels are rotatably connected to the base plate, the adjustable baffle is arranged on the lower portions of the pressing wheels and connected to the base plate, and the hot air device is arranged in the middle of thebase plate. The portable woodworking edge bonding machine has the beneficial effects that the distance between a hot air nozzle and an edge bonding strip does not need to be kept at any time with hands in the operation process, so that the operation difficulty is reduced; the adjustable guide groove is used, so that the edge bonding strips with different wide bands can be used; and the adjustablebaffle is further used, edge bonding can be conducted on a paint-free blockboard, and the L-shaped vertical face of the outer side of a door frame can also be subjected to edge bonding.

The invention discloses ceramic tile processing equipment, and particularly relates to the field of ceramic tile processing. The ceramic tile processing equipment comprises a bottom plate, wherein a conveying device is fixedly mounted at the top of the bottom plate; placing plates which are uniformly arranged are fixedly mounted on the surface of a conveying belt of the conveying device; a drying box which sleeves the conveying device is fixedly mounted at the top of the bottom plate; two fixing sleeves which are distributed up and down are fixedly mounted on one side of the drying box; vertical rods are arranged in the fixing sleeves in a sliding mode; and blank pressing plates are fixedly mounted at the bottom ends of the vertical rods. According to the ceramic tile processing equipment provided by the invention, through movement of the vertical rods and transverse rods, the function of automatic intermittent blanking is achieved, the function that the blank pressing plates move up and down to automatically press and mold blanks is achieved, and a drying cylinder moves front and back and up and down in the drying box, so that hot air is evenly blown to the surfaces of green bricks, and the temperature in the drying box is ensured to be uniform; and the function of printing or glazing the surface of the dried ceramic tile blank is also realized.

The invention discloses super-dry hot-air nonwoven fabric. The super-dry hot-air nonwoven fabric comprises a first water seepage layer, a diffusion layer and a second water seepage layer. The first water seepage layer, the diffusion layer and the second water seepage layer are orderly arrayed from the top to the bottom and fixed. Fibers of the first water seepage layer are arrayed longitudinally. The super-dry hot-air nonwoven fabric has the following beneficial effects: through fibers longitudinally arrayed in the first water seepage layer, the surface of the nonwoven fabric can be rapidly guided to flow through the first water seepage layer to the diffusion layer below; therefore, the surface of the first water seepage layer is kept dry; by arrangement of the diffusion layer, water can disperse; finally, water is drained away from the second water seepage layer, thereby preventing reverse seepage; the dry effect is exerted; and the requirement of a user is met.

The invention provides flat rail replacement equipment and method.The flat rail replacement equipment comprises a first trolley, a driving device and a first lifting device used for lifting a flat rail, a first bearing beam is erected on the first trolley, and the first bearing beam and a fixed sliding way are arranged in a crossed mode; and the first lifting device is arranged on the first bearing beam and can move along the first bearing beam. The flat rail replacing method comprises the following steps that a driving device drives the first trolley to move to a flat rail to be dismounted in a hot air cover along a fixed sliding way of a sintering machine; the flat rail to be dismantled is dismantled; the disassembled flat rail is hoisted to the first trolley through the first lifting device; a driving device drives the first trolley to move out of the hot air cover along a fixed slideway of the sintering machine; and the disassembled flat rail is lifted away from the first trolley through an on-site travelling crane. According to the flat rail replacement equipment and method, the replacement mode that a plurality of guide chains are used for horizontally replacing and transferring a flat rail to enter and exit the hot air cover in the prior art can be replaced, and the replacement efficiency is higher.

The invention discloses a healthy and non-dry electric warmer, which comprises housing assemblies, the multiple housing assemblies are connected together in an inserted mode, air plates are installedat the upper ends and the lower ends of the multiple housing assemblies through bolts, two supporting bases are installed at the lower ends of the air plates arranged at the lower ends of the housingassemblies in a sliding mode, and a left shell is connected to the left sides of the housing assemblies in an inserted mode; by arranging an inclined plate, hot air blowing to a wall can be prevented;water in a water box is heated, water is vaporized into water vapor, and the water vapor is diffused into a room through the air plate, so that air in the room becomes more moist, and the air qualityin the room is further improved; a negative ion generator generates negative oxygen ions, so that the negative oxygen ions can be quickly diffused to each corner of the room along with the water vapor, the air in the room becomes fresher, and the body health of people is facilitated; and the application environment and the overall performance of the electric warmer are greatly improved, and the electric warmer is practical, simple, safe, reliable, long in service life and easy to popularize.

The invention provides an anti-explosion low-energy-consumption type low-temperature sludge drying granulation process, which adopts a hot air circulation drying system and a bipolar heat pump dehumidification system. According to the invention, by changing the shape of sludge and strengthening air flow in a hot air drying system, the heat and humidity exchange rate of the sludge from inside to outside is effectively improved, the granulation quality is remarkably improved, the operation temperature of a dehumidification heat pump can be reduced, it is guaranteed that the suction and exhaust temperature of a compressor is within the optimal interval, the system operation efficiency is remarkably improved, and the possibility of burnout and mechanical faults of a compressor motor is reduced; and by reducing the in-pipe operation pressure of a heat exchanger in contact with hot air and changing the material of the heat exchanger, the leakage probability of the heat exchanger is effectively reduced, and the service life of equipment parts is greatly prolonged.

The invention discloses a direct combustion type hot air penetration internal circulation drying device for non-woven fabric production. The device comprises a machine frame, a drying furnace, a plurality of conveying rollers, a fabric feeding roller set, a non-woven fabric winding device, a hot blast stove, a heat supply pipeline, a natural gas burner, a hot air supply device and an air return pipe, wherein the drying furnace is transversely arranged at the upper end of the machine frame, a drying cavity is formed in the drying furnace, the plurality of conveying rollers are transversely arranged in the drying cavity, and are alternately arranged up and down, and a fabric inlet and a fabric outlet are formed in the two sides of the drying furnace correspondingly. According to the direct combustion type hot air penetration internal circulation drying device for non-woven fabric production, the natural gas burner is arranged to supply heat to the drying furnace, by means of hot air penetration drying, the hot air is enabled to directly transfer heat to a spunlace fiber mesh for water evaporation through the suction action of a main fan, and the drying process is moderate; and the heat supply pipeline is arranged to cooperate with the hot air supply device and the air return pipe for enabling the heat to be used in a cycle mode, the internal circulation of the warm air is realized, the effect of being more energy-saving is achieved, the drying efficiency is improved, and the drying quality is improved.

The invention provides a gas-fired hot blast stove comprising a shell. A combustion chamber is transversely arranged in the middle of the interior of the shell. A third heating chamber is arranged outside the combustion chamber. A second heating chamber is arranged outside the third heating chamber. A first heating chamber is arranged outside the second heating chamber. The combustion chamber, thethird heating chamber, the second heating chamber and the first heating chamber are arranged in a coaxial bush manner. A first air deflector is arranged at the left end of the first heating chamber.The first heating chamber is connected with the second heating chamber through the first air deflector. A second air deflector is arranged at the right end of the second heating chamber. The second heating chamber is connected with the third heating chamber through the second air deflector. A combustor is arranged at the left end of the combustion chamber. An air blower is arranged at the left endof the combustor. An air inlet pipe is arranged at the right end of the upper portion of the shell. The air inlet pipe is connected with the first heating chamber. An air outlet pipe is arranged at the left end of the upper portion of the shell. The air outlet pipe penetrates the first heating chamber and the second heating chamber and is connected with the third heating chamber. The gas-fired hot blast stove solves the problem that the heat exchange effect is low, and the heat exchange effect and the energy conservation effect are improved.

The invention discloses a hot air circulation type baking machine, which comprises a notch, a machine body, a door body and a fixing plate. The notch is formed in the machine body, a hinge is installed on the outer side wall of the notch, and the door body is movably connected to the outer side wall of the hinge. The electric heating wires installed on the inner wall of the notch are controlled and started through a control switch to conduct heating work, the electric heating wires are evenly arranged on the inner wall of the notch at equal intervals, the interior of the notch is rapidly and evenly heated, in the working process, the control switch controls a first draught fan and a second draught fan installed at the bottom end of the notch to work according to needs, high-temperature air flow is formed through heating of the electric heating wires in the notch, materials on an inner filter screen disc are baked and air-dried at a high speed, the air flow can be pumped into a communicating pipe through an air pump installed at the top end of the notch in the blowing process, then the air flows into the notch from the two sides of the notch through a fixing groove, high-temperature wind in the notch is always in a flowing process, and thus the baking is more efficient and faster.

The invention discloses drying equipment for metal product machining. The drying equipment comprises a machine body, a feeding opening is formed in one side of the top of the machine body, and a heating and drying mechanism is arranged at the other side of the top of the machine body; and the heating and drying mechanism comprises a hot air unit, an air guide pipe, a sleeve, a spiral flow guide rod, a conical groove, a drying system, a filter screen plate, a driving motor, a gear set, an exhaust port, a rotating wheel, a guide groove and a connecting frame. By means of the drying equipment, through structural cooperation of the heating and drying mechanism, four groups of filter screen plates can be used as guide structures to receive and guide metal products, the metal products needing to be dried are forced to cover the surfaces of the filter screen plates to laterally slide and roll downwards, excessive metal products are promoted to be automatically separated during side slide, and adhesion is prevented; and during the period, hot gas is uniformly distributed in the equipment and among the four groups of filter screen plates in cooperation with centrifugal rotation of the sleeve, so that the metal products flowing above the filter screen plates are comprehensively dried.

The invention provides a clothes care machine. The clothes care machine comprises a control circuit board, a hot air assembly, a care box body, a door body hinged to the care box body and at least one illuminating lamp. The door body comprises a control switch, a door plate and door glass installed on the door plate. A light-transmitting space is formed between a light-transmitting plate arranged on the door plate and the door glass; the control circuit board is electrically connected with the illuminating lamp, the control switch and the hot air assembly. When the control switch is turned on, the control circuit board controls the lighting lamp to be turned on so as to increase the brightness in the nursing box body; the hot air assembly is controlled to be started to heat the gas in the light-transmitting space, so that the light-transmitting plate and the door glass are heated, and the situation that hot steam is condensed on the light-transmitting plate and the door glass to form water mist to shield observation sight is avoided; the clothes care machine is easy and convenient to operate, the door body does not need to be opened, the care state of clothes can be known on the premise that the care process is not affected, and the care effect and efficiency can be improved.

The invention relates to a safe and energy-saving comprehensive utilization system for a boiler. The system comprises a flue gas heat release system, a waste heat utilization circular heat exchange system and a hot air heating system, wherein the flue gas heat release system comprises a flue from an air pre-heater to a desulfuration island; a fly ash separator, a heat exchanger, a dust remover, aninduced draft fan, a primary heat exchanger and a secondary heat exchanger are successively arranged in the flue in a flue gas flowing direction; the flue from the secondary heat exchanger to the desulfuration island is an acid etching preventing flue; the primary heat exchanger and the secondary heat exchanger are arranged in a slightly inclined manner; the waste heat utilization circular heat exchange system comprises a water supplementing water tank, a circulating pump of a steam-air heater, a primary heat exchanger at an outlet of the induced draft fan, a secondary heat exchanger at an outlet of the induced draft fan, a heat exchanger at an inlet of a dust remover, a primary heat exchanger at an inlet of a fan, a secondary heat exchanger at the inlet of the fan, a high-temperature cooler and a deaerator of a steam turbine. The hot air heating system comprises a blowing heating system and a primary air heating system. The safe and energy-saving comprehensive utilization system canachieve safe and energy-saving comprehensive utilization of the boiler.

The invention relates to safe and environment-friendly aluminum powder and a preparation method thereof, in particular to safe and environment-friendly aluminum powder for refractory industry. The safe and environment-friendly aluminum powder is composed of aluminum powder, OP-10 and dimethicone. The preparation method includes sequentially adding a solvent, dimethicone and OP-10 into a stirring tank; stirring while adding the aluminum powder; after reaction is completed, filtering the aluminum powder, and discharging and packaging after volatile content is inspected to be qualified. Generally, volatile content is smaller than or equal to 1%o. The safe and environment-friendly aluminum powder is mainly used for manufacturing of high-alumina refractories like plugs and nozzle bricks for constructing a blast furnace, a hot blast furnace, an electric furnace roof, an air furnace, a reverberatory furnace, a rotary kiln lining, an open furnace heat-storage-type checker brick and a pouring system. The safe and environment-friendly aluminum powder mainly has the advantages of being free of dusting, environmental pollution and reaction when contacting with water, free of clotting, easy to disperse and safe to use and store.

The invention discloses a system for improving the drying output of a direct-fired pulverizing system, which is characterized in that a smoke exhaust port of a boiler body steering chamber is communicated with an inlet of a high-temperature electric dust remover, an outlet of a denitration device is communicated with the inlet of the high-temperature electric dust remover, and an outlet of the electric dust remover is communicated with an inlet of a high-temperature primary fan; an outlet of the high-temperature electric dust remover is communicated with an inlet of a high-temperature primary fan, an outlet of the high-temperature primary fan is communicated with an inlet of a coal mill hot air door, the outlet of the primary fan is divided into two paths, one path is communicated with the inlet of the coal mill hot air door through the air side of an air preheater, and the other path is communicated with the outlet of the coal mill hot air door. The outlet of the coal bunker is communicated with the inlet of the coal mill, the outlet of the coal mill is communicated with the inlet of the boiler body, the temperature of hot primary air can be increased, and meanwhile the system has the advantages of being low in smoke exhaust temperature, high in boiler efficiency and high in safety.

The invention discloses a sintering pre-cooling waste heat efficient utilization system and a sintering cooling process. The sintering pre-cooling waste heat efficient utilization system comprises a pre-cooling device, an annular cooler, a dust removal device, an exhaust fan and a desorption tower, wherein the pre-cooling device is arranged on a hot sintered ore falling path between the discharging end of a crusher corresponding to a sintering machine and the feeding end of the circular cooler, the pre-cooling device comprises a hot air outlet, and the hot air outlet is led to the air inlet end of the heating section of the desorption tower through the dust removal device and the exhaust fan in sequence. The sintering pre-cooling waste heat efficient utilization system aims at solving the technical problem that in the sintering cooling process in the prior art, a hot blast stove needs to burn a large amount of energy to generate heat.