1060 results about "Cold blast" patented technology

The invention discloses a melt spinning cooling system which comprises a spinning box, a cooling cylinder section, a first heating assembly, a second heating unit and a recovery part, the first heating assembly outputs trace hot nitrogen, anti-oxidation protection of melt trickles is achieved, the oxidation risk possibly caused by direct contact of a traditional cooling medium is avoided, and the cooling efficiency is improved. Meanwhile, the second heating unit is matched to regulate and control the temperature of the cooling cylinder section, so that the whole-process temperature accurate control from oxidation prevention to high-temperature natural cooling and the high-temperature natural cooling and cold air supply-free operation process are realized, and the solidification orientation length and process of the melt trickle can be actively lengthened by combining gradient process temperature control; different from the defect of insufficient orientation caused by too fast cooling in the prior art, key conditions are provided for optimization of a fiber orientation structure; due to the coaxially stacked cooling cylinder sections and nitrogen recovery operation, a stable cooling environment is constructed, fiber shaking is avoided, the nitrogen utilization rate and the environmental safety are improved, and the process stability and economical efficiency are balanced.

The utility model relates to the technical field of vacuum gas quenching furnaces, and discloses a circulating heat exchange type vacuum gas quenching furnace which comprises a vacuum gas quenching furnace body, a set of connectors are arranged on the outer wall of the vacuum gas quenching furnace body, circulating pipes are connected to the outsides of the connectors, a water cooling tank is connected to one end of each circulating pipe, and a flow dividing air bellow is rotationally installed on one side of the interior of the water cooling tank; a plurality of heat exchange pipes are arranged on the inner wall of the flow dividing air bellow in the circumferential direction at equal intervals, the ends, away from the flow dividing air bellow, of the heat exchange pipes are connected with an air bellow, a sealing plate is rotationally installed on the other side in the water cooling tank, and a three-way air pipe is arranged outside the sealing plate. The workpiece is placed in the vacuum gas quenching furnace to be heated in advance, a proper environment is provided for heat treatment of the workpiece, cold air is divided through the multiple heat exchange pipes, the heat exchange efficiency is improved, the bevel gear rotates to drive the sealing plate, the air box and the heat exchange pipes to rotate, the multiple heat exchange pipes make full contact with cooling liquid, the heat exchange uniformity is improved, and the heat exchange efficiency is improved. And the workpiece cooling effect is ensured.

The invention relates to the technical field of bypass ventilation denitration systems, and discloses an intelligent bypass ventilation SCR (Selective Catalytic Reduction) coupling SNCR (Selective Non-Catalytic Reduction) denitration system which comprises a smoke chamber, a cyclone cylinder, a precise ammonia spraying system, an air mixing chamber, a cooling fan, a cold air valve, a dust collection chamber, an SCR reactor, an exhaust fan, a chimney, a stock bin, a bin pump, a compressed air system and an intelligent control system, the air inlet is connected with the smoke chamber, and the feed opening is connected with the bin pump. Under any working condition, NOx emission at a chimney outlet can reach the standard, the ammonia water consumption is lowest, the denitration effect is good, the investment cost is low, the problem that NOx emission of the kiln tail chimney is unstable and prone to exceeding the standard is solved, the catalyst abrasion and blocking risk can be greatly reduced, the catalyst dosage is small, the maintenance cost is low, and the method is suitable for industrial production. And long-term stable operation of the system is realized.

The present application relates to air conditioning technology field, specifically relates to a kind of partition regulation formula refrigeration constant temperature and humidity air conditioning unit with air supply system, comprising: unit machine case;Constant temperature air supply structure for temperature regulation for air supply system air supply is equipped in the inside of unit machine case, and the air supply end of constant temperature air supply structure is connected with air duct for wind force transmission;The air duct is installed with constant humidity partition regulation structure for indoor partition regulation air supply in air outlet end.This application, in hot air heating mode, system can effectively deliver hot air to each partition by closing No. 1 and No. 3 electromagnetic valve, realize subarea heating, improve energy utilization efficiency, in cold air refrigeration mode, system is adjusted closed flap and starts compressor, so that cold air is delivered to each partition after refrigeration cycle, also realize subarea refrigeration, exhaust air and dust mode can extract indoor peculiar smell and dust, improve indoor air quality.

The invention relates to a bladeless fan capable of switching cold air and hot air, the core of the bladeless fan is an air valve assembly in a shunt pipe, and an air inlet connecting port can be communicated with a first air outlet (in a first air outlet form) or a second air outlet (in a second air outlet form) by switching an air valve; in the first form, airflow enters the hot air outlet shell with the electric heater through the first air outlet, warm air is formed, and the heating requirements in winter, spring and autumn are met; in the second form, the airflow enters the cold air outlet pipe through the second air outlet, cold air is sent out, and cooling in summer is adapted; the first air outlet on the front side of the shunting pipe corresponds to warm air (front concentrated air supply), the left and right second air outlets correspond to cold air (two-side diffused air supply), and air supply modes can be flexibly switched. And the air duct elbow rotationally communicates with the flow dividing pipe, the cold air outlet pipe can rotate, a user can adjust the air supply angle, the problem that air outlet of a traditional bladeless fan is fixed is solved, the air supply requirement of a specific area is accurately met, and the equipment utilization rate and practicability are improved.

The invention provides an energy-saving fine control method and device for a central air conditioner of a ten-stage purification workshop. A control system controls all systems to start and operate, and cold air passes through a fan filtering unit and a raised floor to achieve indoor purification circulation; the cold and heat source system carries out cooling treatment, and the cold water outlet temperature is 5 + / -0.5 DEG C; the temperature and humidity control fluctuation range of the first temperature and humidity sensor and the second temperature and humidity sensor is + / -0.3 DEG C / + / -0.8% RH; the control system automatically regulates and controls the air conditioner air cabinet and the cold and heat source system and comprises the steps that measured data of the indoor temperature, the indoor humidity, the air supply temperature, the air supply humidity and the fresh air dew point temperature are input into a pre-constructed temperature and humidity coupling model, and temperature and humidity regulation information is formed through calculation; the control system conducts refrigeration, heating and air volume regulation and control on the air conditioner air cabinet according to the information and conducts valve opening regulation and control on the cold and heat source system and the humidification pipe. According to the invention, the requirement of keeping stable high-precision temperature and humidity under the working condition of ten-grade cleanliness indoors can be met.

The peak closed type condensation cooler comprises a box body, and an air mixing chamber is arranged on the upper portion of an inner cavity of the box body; two connected fog dispersal modules are arranged in the box body, a resistance reducing shutter and a water distribution device are sequentially arranged between the fog dispersal modules and the side wall of the box body, and the two fog dispersal modules, the resistance reducing shutter and the water distribution device divide a lower cavity of the box body into a first cavity, a second cavity and a third cavity; the fog dispersal module is provided with a cold air channel and a hot air channel which communicate with the air mixing chamber. Through the structural design of bottom air inlet, the sufficient fresh air introduction area can be achieved on the premise that the height of equipment is not increased, then the air path resistance is reduced, the fan operation pressure head and energy consumption are reduced, and the overall energy-saving performance of the equipment is improved. Meanwhile, on the premise that the vertical size of the equipment is not increased, the lift requirement of the spraying water pump is reduced, the energy consumption and the operation burden of the water pump are reduced, and the operation economical efficiency and the structure compactness of the whole equipment are improved.

The invention provides a peak closed type condensation cooling device with water-saving, energy-saving and fog-dissipation functions. The peak closed type condensation cooling device comprises a box body, and an air mixing chamber is arranged on the upper portion of an inner cavity of the box body; an inner cavity of the box body is sequentially connected with a fog dispersal module, a resistance reduction shutter and a water distribution device, the fog dispersal module divides the lower inner cavity of the box body into a first cavity and a second cavity, the fog dispersal module is provided with a cold air channel and a hot air channel which are communicated with the air mixing chamber, the first cavity is communicated with the cold air channel, and the second cavity is communicated with the hot air channel; an evaporation coil pipe is mounted at the position, close to the side wall of the box body, of the second cavity, and water dripped from the water distribution device can fall on the heat exchange wall surface of the evaporation coil pipe; damp and hot air at an outlet of the evaporation coil pipe is partially condensed through the rhombic fog dissipation filler, the condensed damp and hot air is mixed with cold air after heat exchange, the moisture content is reduced, the relative humidity is reduced, the temperature is reduced, then the air is discharged into the atmosphere to be in contact with environment low-temperature air, and the rime fog phenomenon is not prone to being generated.

The invention discloses a die-casting die thermal fatigue life detection device, and relates to the technical field of die-casting die detection, the die-casting die thermal fatigue life detection device comprises a detection machine body and a control platform, and the top of the detection machine body is provided with a material thermal fatigue detection assembly and a mechanical load mechanism. When the device is used, the electric push rod pushes the heat insulation sleeve to penetrate through the penetrating hole and continue to move, and the movable turning cover is jacked upwards. Under the combination of the vacuum cavity, the honeycomb-shaped porous heat insulation plate and the metal foil reflecting screen, the heat insulation sleeve forms a triple barrier of reflection, vacuum and porous heat insulation, heat transfer is blocked, and it is guaranteed that cold air is not affected by heat of an air cooling opening when blown. When the material thermal fatigue detection assembly works, the cold air pipe and the heat insulation sleeve are located outside the detection box, the heat absorption temperature of the cold air pipe is prevented from increasing in the heating process, and the mold thermal fatigue detection precision and efficiency can be improved.

The invention discloses a snow crystal induced coagulation dust suppression system and method for a crushing station under high-cold and high-altitude working conditions of a surface mine, and belongs to the technical field of mine dust suppression. The snow crystal induced coagulation dust suppression system comprises a water supply function module, an air supply function module and a snow crystal coagulation dust suppression module; one end of the snow crystal coagulation dust suppression module is connected with the water supply function module, and the other end of the snow crystal coagulation dust suppression module is connected with the air supply function module; the water supply function module is used for providing water mist for the snow crystal condensation dust suppression module; the air supply function module is used for providing high-pressure cold air for the snow crystal condensation dust suppression module; the snow crystal condensation dust suppression module is used for fully impacting and mixing water mist and high-pressure cold air, and internally inducing to generate snow crystals; and a spray head is arranged on the snow crystal condensation dust suppression module and is used for spraying snow crystals. According to the scheme, the flying dust pollution problem of the crushing station under the high-cold and high-altitude working conditions of the surface mine is effectively solved, the mine operation environment quality is improved, and meanwhile, the harm of dust to the surrounding ecological environment and the health of workers is reduced.

The invention provides a top-spraying feeding type high-temperature activation furnace and a control method thereof.The activation furnace comprises a vertical furnace body, and a fuel nozzle, a first combustion-supporting air nozzle, a cooling liquid nozzle and a cold air nozzle are sequentially arranged on a first section, a second section, a third section and a fourth section in a hearth of the vertical furnace body from top to bottom; a reduction gasification area, a peroxidation combustion area, a primary cooling area and a secondary cooling area are sequentially defined in the hearth so as to control the temperature in different areas; the fuel nozzles are arranged in pairs and arranged around the center circle of the hearth in a symmetrical tangent circle opposite spraying mode so that opposite flow can generate turbulent disturbance in the center area of the hearth to establish a first swirling flow field, and a feeding nozzle is arranged on the furnace top of the vertical furnace body to be communicated with the hearth and spray materials towards the first swirling flow field to form top combustion. Therefore, the high-temperature activation treatment of the livestock and poultry excrement is realized.

The invention relates to the technical field of blast furnace iron making, and particularly discloses a blast furnace composite stemming and a preparation method thereof.The blast furnace stemming is prepared from, by mass, aggregate including (43-X1-X2-X3)% of brown fused alumina, 13% of coke, (16-B)% of SiC, B% of clay, 4.5% of sericite, 7% of kyanite, 7.5% of silicon carbide iron, 4% of ball pitch, 5% of iron area waste mixture, 1% of iron oxide scale Fe3O4 X, 2% of cubic boron nitride c-BN X and 3% of graphene oxide GO X; comprising the following components in percentage by weight: 13-C% of tar, C% of asphalt and 2% of sodium pyrophosphate Na4P2O7; according to the method, stemming softening caused by excessive use of the oxide scale when the cold air pressure is low is prevented, the problems of incomplete internal structure and insufficient strength development of stemming caused by insufficient heat are avoided, excessive use of nanoscale materials is avoided, and the material cost is reduced.

The invention relates to an energy storage type hot and cold air system improved based on an air compressor and a using method, and belongs to the technical field of heating and refrigerating equipment. The system comprises an air compressor assembly, a pressure air storage device, a constant pressure air storage device, a vortex tube unit, an air cooler and an air heater; a compressed air outlet in the air compressor assembly is communicated with the pressure air storage device, the pressure air storage device is communicated with the constant-pressure air storage device, and the constant-pressure air storage device is communicated with the vortex tube unit. The other end of the vortex tube unit is connected with the hot air collecting tube; the air compressor assembly is provided with a heat insulation enclosure shell, and a fresh air fan is installed on the heat insulation enclosure shell. The system has the energy storage characteristic, solves the wind and light abandoning problem of unstable natural energy, utilizes valley electricity to avoid peaks, obtains cheap energy, can be widely applied to the drying industry, building heating and ventilation, energy construction and hot air and cold air supply centers, and achieves the good effects of energy conservation, cost reduction and emission reduction.

The invention relates to the related technical field of toughening furnace bodies, in particular to a hot-bending toughening furnace for toughened glass, which comprises a hot-bending furnace body, a toughening furnace body and a base transmission frame, a hot-bending fitting assembly for hot-bending heated glass is arranged in the hot-bending furnace body, and the hot-bending fitting assembly comprises a lower mold, an upper mold and a soft capsule, the annular cooling assembly for cooling the hot-bent glass is arranged in the toughening furnace body, and the fan frame arranged on the annular cooling assembly is used for cooling the hot-bent glass. According to the invention, the fan frame in the surrounding cooling assembly is matched with the cooling bottom plate to carry out surrounding heat dissipation on the hot-bent glass product; the arc-shaped glass product is cooled back and forth in a surrounding mode in the vertical direction of the glass product, the cooling uniformity of the glass product is improved, it is ensured that cold air can evenly cover the whole arc-shaped glass surface, the spraying angle and pressure distribution of the cold air are better controlled, and therefore uniform cooling of the glass surface is achieved.

The invention relates to a blast furnace operation dynamic regulation and control method, and belongs to the technical field of blast furnace smelting methods. According to the technical scheme, the method comprises the steps that an ore granularity index and a coke granularity index are defined, dynamic correlation between the granularity indexes and cold air flow is monitored in real time, and a regulation and control strategy is triggered in combination with a preset early warning value; and when the index exceeds the limit, the opening degree of a throttle valve, the number of material distribution turns and the cold air flow are dynamically adjusted, and the raw material supply end is synchronously linked to optimize the screening process. The method has the beneficial effects that the purpose of precise regulation and control is achieved, the material suspension risk is remarkably reduced, the coal gas utilization rate is synchronously increased, and smooth furnace conditions and optimization of the blast furnace smelting cost are achieved.

The present application relates to the technical field of grain drying, and particularly relates to a combustion chamber convenient to transport and assemble. The combustion chamber comprises a burner, a horizontally placed outer cylinder, a base welded at the bottom of the outer cylinder, an equal-length inner cylinder coaxially fixed in the inner part of the outer cylinder, a connecting rod arranged between the outer periphery of the outer cylinder and the inner cylinder, a screen mesh arranged at one end of the outer cylinder, an end plate arranged at one end of the inner cylinder and outside the screen mesh, a nozzle of the burner penetrating through the end plate and the screen mesh and extending into the inner cylinder, and a heat preservation pipeline connected to the other end of the outer cylinder. The base, the inner cylinder and the outer cylinder are prefabricated in a split manner, which not only saves materials compared with traditional combustion chambers, but also is convenient to transport. The assembled combustion chamber saves time and labor, and the manual construction time is short, which can ensure the construction period. The combustion medium in the inner cylinder is provided with a heat source by the burner, hot air is output through the heat preservation pipeline, the refractory layer prevents the damage of high temperature to the inner wall of the combustion chamber, the cold air door adjusts the supply temperature, and the air tunnel cools the nozzle of the burner located in the inner part of the end plate.

A range hood main body comprises an air inlet and an air outlet, and a cold air cavity is communicated between the air inlet and the air outlet. The cold air assembly is arranged in the cold air cavity, the refrigerating unit is connected with the cold air assembly to form a circulating refrigerating loop, and a cooling medium circulates in the circulating refrigerating loop and is used for cooling airflow fed from the air inlet into cold air and blowing the cold air out of the air outlet; and the heat dissipation unit is arranged close to the circulating refrigeration loop and is used for enabling the temperature of the cooling medium in the circulating refrigeration loop to be lower than the set temperature. According to the range hood, the device capable of blowing out cold air is additionally arranged in the internal space of the range hood, the space of a kitchen is not additionally occupied, the added value of an existing range hood is increased, meanwhile, cool air is blown to a user at the proper height where the range hood is located, good cooking experience is provided for the user, and the problem that the cooking temperature of the kitchen is high in summer is solved.

The utility model relates to the technical field of turbine rotor blades, in particular to a turbine rotor blade platform cooling structure which comprises a cooling platform, a first cold air pipe, a second cold air pipe, an adjusting plate, a nozzle, an air guide plate, an isolating ring, a blade mounting plate and a mounting seat. The first cold air pipe is arranged in the first air guide groove, and the second cold air pipe is arranged in the cooling platform. A first cold air pipe can be installed through a first air guide groove in the cooling platform, when the first cold air pipe communicates with a second cold air pipe, wind energy conveying at the bottom of the cooling platform can be achieved, cold air plates are obliquely arranged in the first cold air pipe and the second cold air pipe, and when the flow effect of air can be achieved through the cold air plates, the air flow effect is improved. When the internal energy of the gas is converted into kinetic energy due to the release of the pressure energy, the internal energy is reduced, the temperature of the gas is reduced, and the cyclic utilization of the wind energy can be realized.

The application discloses a mobile air conditioner with ice making function, which comprises a cold air fan body, at least one air inlet and one air outlet are arranged on the cold air fan body, a water tank placing cavity is arranged on the cold air fan body close to the bottom, a water tank is arranged in the water tank placing cavity, and a water pump is connected to the water tank outside or inside; an ice maker assembly is connected with the water pump through a water pipe, the structure of the application is reasonable, the ice maker assembly and the ice block dispersing device are designed, the cold air fan can have the ice making function at the same time, the water in the water tank of the cold air fan is used to achieve the ice making function, the ice blocks are dispersed and conveyed through the ice block dispersing device, and the ice blocks are evenly arranged at the air outlet position of the cold air fan, so that the cold air function and further refrigeration effect can be realized at the same time, resource waste is avoided, the labor cost is reduced, and the practicability of the cold air fan is improved as a whole.

This invention provides a tunnel kiln structure with an external air duct. The external air duct allows natural air to bypass the bricks in the reduction zone and directly enter the high-temperature firing zone, satisfying the oxygen requirements for sintering while avoiding disruption of the oxygen-deficient reduction environment in the cooling reduction section. The sealed box structure, consisting of a reduction zone made of a preferred high thermal conductivity metal and partition doors, forms a stable oxygen-deficient environment chamber from the reduction zone to the kiln outlet, ensuring that the brick blanks complete reduction cooling under oxygen-free conditions. This eliminates the need for a crane cover system, directly saving on equipment investment and maintenance costs. Preheating the natural air by the outer surface of the reduction zone effectively prevents irreversible damage to the finished product from cold air shocks. Furthermore, the absence of airflow within the reduction zone allows for pressure balance, creating a stable oxygen-deficient reduction cooling environment without the need for additional pressure regulating devices. Continuous feeding and discharging and chamber sealing can be maintained through at least one partition door, ultimately achieving the technical effects of reduced brick firing costs, increased production capacity, and no new pollution.

The application discloses a feeding device for flame retardant processing, and relates to the technical field of flame retardant processing feeding, which comprises a base, and a cooling feeding mechanism is arranged on the top of the base. When the application is used, the air cooler delivers cold air into the three-way pipe, and two air flows enter the central cavity and the air cavity respectively. The cold air in the air cavity enters the hollow cavity through the second communication hole and the first communication hole, exchanges heat with the cold air absorbed by the copper-based foam metal framework, and reduces the temperature of the feeding blade and the raw material. Meanwhile, the cold air in the central cavity passes through the aluminum-based silicon carbide composite layer and takes away the heat of the rotating shaft, thereby assisting in reducing the temperature of the raw material. Through the cooling feeding mechanism and the copper-based foam metal framework, the heat exchange of the cold air is strengthened, the overall strength is enhanced, the temperature is reduced, and the strength is doubled. In combination with the aluminum-based silicon carbide composite layer, the high torsional strength of the aluminum-based silicon carbide composite layer bears the torque transmission, and assists in reducing the temperature.

The invention discloses a refrigeration type range hood and a cold air outlet angle adjusting method thereof.The refrigeration type range hood is characterized in that an oil smoke suction module, a compressor, a heat dissipation module and a refrigeration module are installed in a machine shell of the refrigeration type range hood, the oil smoke suction module comprises a fan frame and an oil smoke suction fan, the heat dissipation module comprises a condenser, and the refrigeration module comprises an evaporator and an indoor unit fan; a cold air outlet module is installed on the upper portion of the front face of the machine shell and comprises an air guide plate used for adjusting the air outlet angle, and an air outlet of the indoor unit draught fan is in fluid communication with an air inlet of the cold air outlet module. The controller can control the opening angle and the swing angle range of the air guide plate according to different gears of the indoor unit draught fan and different rotating speeds of the oil smoke suction draught fan. According to the refrigeration type range hood, when the refrigeration function and the oil fume suction function are both started, the swing angle of the air guide plate can be intelligently adjusted according to the change of the gear of the inner unit and the resistance of the flue, the oil fume suction effect is preferentially guaranteed, and when the refrigeration function is singly started, the swing angle of the air guide plate is not limited.

The invention discloses a sealed phase change heat exchanger structure for guiding liquid through a capillary wick, and belongs to the technical field of phase change heat exchangers, the sealed phase change heat exchanger structure comprises a machine body, a hot air pipe and a cold air pipe, the hot air pipe and the cold air pipe are installed on the two sides of the machine body in a sealed mode, heat pipes are connected to the inner ends of the hot air pipe and the cold air pipe in a sealed mode, and a row of cooling fins are correspondingly arranged on the side, close to the machine body, of a fan. And one row of radiating fins are arranged on the outer side surface of the machine body. According to the sealed phase change heat exchanger structure for guiding liquid through the capillary wick, the movable frames are arranged, the driving motor is started to drive the two rotating shafts to rotate through the two transmission belts at the same time, and then the two rotating shafts drive the two reciprocating lead screws through the two bevel gear sets at the same time to drive the two movable frames to move in a reciprocating mode; at the moment, a row of cleaning fins arranged on the inner sides of the two movable frames can conduct reciprocating movement cleaning on a row of cooling fins, and it can be avoided that external dust and impurities adhere to the surfaces of the cooling fins, and the later cooling efficiency is affected.

The utility model relates to the technical field of air valve steel, and discloses a martensite air valve steel coil annealing ladle shape improving device which comprises an annealing furnace and a furnace cover arranged at the top of the annealing furnace, the martensite air valve steel coil annealing ladle shape improving device is provided with a supporting assembly, so that coiled coils can be conveniently and orderly placed, uneven heating and cooling caused by stacking are avoided, and the production efficiency is improved. Layered placement of a plurality of wire rods is facilitated through the first supporting disc, the connecting column, the second supporting disc, the fixing column, the supporting sleeve and the like, gaps are reserved between the wire rods, heat transfer is promoted, the first supporting disc and the second supporting disc drive the wire rods to rotate in the annealing furnace, the uniform heating effect is improved, and production efficiency is improved. By arranging the cooling assembly, cold air can be conveniently conveyed into the annealing furnace, cooling liquid circularly flows in the circulating pipe for refrigeration, cold air conveying is achieved through the first draught fan, the air supply pipe, the connecting pipe and the like, and under the rotation effect, uniform cooling is promoted, and the situation that the annealing ladle shape of a wire rod is poor is improved.

The application relates to the technical field of material drying equipment, and discloses a rotary kiln drying and cooling integrated machine, which comprises a drying kiln body, a cooling kiln body arranged on one side of the drying kiln body, a kiln head arranged on one side of the drying kiln body, a material conveying cylinder arranged on one side of the kiln head, a plurality of scoops arranged in the drying kiln body and the cooling kiln body, an adaptive mounting mechanism comprising an adjusting cavity arranged in the bottom of the scoops and a second scoop arranged in the bottom of the scoops, and an adjusting plate fixedly arranged on the top of the second scoop. According to the adaptive mounting mechanism, the throwing angle of the second scoop can be self-adaptively adjusted according to the particle size, viscosity and other characteristics of the material. When facing different types of materials, the second scoop always maintains an adaptive throwing posture, which can ensure that the material is uniformly thrown to fully contact hot air or cold air, improve the drying and cooling efficiency and uniformity, guarantee the continuous and stable operation of the equipment, and improve the overall production efficiency.

The present application relates to a method, device, system and coal mill equipment for controlling the outlet temperature of a coal mill, including: obtaining a reference trajectory and a predicted output of the outlet temperature of the coal mill air duct at the prediction moment; processing the reference trajectory and the predicted output according to a target proportional-integral implicit generalized predictive control model to obtain a target control increment; controlling the air inlet component of the coal mill according to the target control increment to adjust the real-time temperature at the outlet of the coal mill air duct to the target temperature, wherein the air inlet component includes a hot air regulating valve and a cold air regulating valve. The present application combines the feedback structure of proportional-integral control with the prediction function of implicit generalized predictive control, which can effectively overcome the influence of uncertain factors such as nonlinearity, time-varying and hysteresis of the coal mill outlet temperature control, and significantly improves the robustness and anti-interference ability of the system.

The utility model provides a discharge tower for salt production, which comprises a feeder, a drying roller, a discharge tower and a heat source area, the feeder for feeding wet materials and the discharge tower for discharging dry materials are respectively arranged at the head end and the tail end of the drying roller, and the head end of the drying roller is communicated with the heat source area positioned obliquely below the drying roller; the discharging tower comprises a three-way valve, an air pipe, a discharging port, a tower body, a first air outlet and a second air outlet. Cold air and hot air in the cold air area and the hot air area are used as media, when the temperature of the tower body is high, the cold air enters the air pipe for cooling, and when the temperature of the tower body is too low, the hot air enters the air pipe for heating, so that the temperature of the tower body is maintained at 55-100 DEG C, dried edible salt particles cannot be damped, and the temperature of the edible salt particles is gradually reduced.

The utility model provides a drying mechanism for garment processing, which relates to the technical field of garment processing and comprises a fixed support shell and a cold and hot drying integrated mechanism, support slide bars are slidably connected to two sides of the fixed support shell, one side of each support slide bar is fixedly connected with a barrier plate, and the barrier plates are arranged on the inner side of the fixed support shell. When the knitwear is dried, the air inlet grooves in the side edges can be blocked by the blocking plates, air is sucked into the fixed supporting shell through the air inlet grooves in the lower side through the air blowing fan to conduct cold air drying operation on the knitwear, and when polyester fiber clothes are dried, the supporting sliding rod can slide to the leftmost side, and the supporting sliding rod can slide to the leftmost side; the electric conduction supporting feet are connected with the thermal control board, the heating module is driven to heat the heating copper wires, and the air blowing fan conducts heating through the heating copper wires when exhausting air from the side edge air inlet open groove. And warm air enters the fixed supporting shell to conduct hot drying operation on the clothes, and therefore drying operation on the clothes made of different materials can be achieved.

The invention belongs to the technical field of blast furnace smelting, and particularly discloses a hydrogen-rich carbon circulating oxygen blast furnace blow-in air supply system and method.The system comprises a blast furnace, an air inlet header pipe, a smoke header pipe and a plurality of hot blast stoves, each hot blast stove communicates with a nitrogen inlet pipe and a cold air inlet pipe, and each hot blast stove is provided with an air outlet pipe; each air outlet pipe is communicated with an air outlet header pipe, the air outlet header pipe is communicated with a communicating bustle pipe, the high way is communicated with a plurality of air inlet branch pipes, the bustle pipe is communicated with the air inlet branch pipes, the air outlet header pipe is communicated with an air mixing pipe, the bottom of each hot blast stove is communicated with a smoke exhaust pipe, and each smoke exhaust pipe is communicated with a smoke header pipe. The flue gas header pipe is communicated with a flue gas branch pipe I, the flue gas branch pipe I is communicated with the blast furnace, the flue gas branch pipe I is communicated with a flue gas branch pipe II, the upper end of each hot blast stove is communicated with a flue gas inlet pipe, each flue gas inlet pipe is communicated with the flue gas branch pipe II, and the flue gas branch pipe I is provided with a circulating fan. Efficient temperature control and oxygen reduction are achieved, waste heat recycling is achieved, and safe, energy-saving and low-carbon blow-in is achieved.

The invention relates to a cleaning mechanism and cold air equipment, and relates to the technical field of fans. The cleaning mechanism comprises a water distribution container, a shielding piece and an adjusting assembly. A water inlet, a first water outlet and a second water outlet are formed in the water distribution container; the first water outlet is used for supplying water to a wet curtain of the cold air equipment; the second water outlet is used for supplying water to a filter screen of the cold air equipment; the shielding piece is movably arranged in the water distribution container; the adjusting assembly is arranged in the water distribution container and is in transmission connection with the shielding piece; the adjusting assembly can drive the shielding piece to selectively shield the first water outlet and the second water outlet. The problems that cleaning of a filter screen of an existing cooling fan depends on manual regular disassembly and cleaning, operation is tedious, and use is inconvenient can be solved.