664 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 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 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 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 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 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 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 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.

The utility model belongs to the technical field of boiler medium flow measurement, and discloses a coal mill inlet air duct which comprises a hot air mother pipe, a hot air duct is installed in the middle or at the bottom of the hot air mother pipe, a cold air duct is installed on one side of the bottom of the hot air duct, and a cold air mother pipe is installed at the end, away from the hot air duct, of the cold air duct. The joint of the hot air duct and the cold air duct is located on the upper portion of the boiler operation layer, and a mixed air duct is installed at the bottom of the hot air duct and provided with an air volume device. According to the utility model, the medium flow field at the flow device in the inlet air duct of the coal mill can meet the requirement of air volume measurement, and the inlet air volume of the coal mill can be conveniently and accurately measured.

The utility model discloses a medicine conveying structure which comprises an upper box body, a lower box body, a conveying device and a refrigerating device. Through the design of the blowing cover capable of dynamically adjusting the height, the cold air spraying distance can be adjusted in real time according to the stacking height of the medicine boxes, the problem that the cooling efficiency of the upper layer of stacked medicine is reduced due to the fixed distance is solved, and it is ensured that the interiors of the medicine boxes with different heights can obtain the stable and uniform cooling effect; cold air closed-loop circulation is constructed through an axial flow fan and a pipeline system, traditional one-way lost cold air is recycled, the energy consumption of continuous full-load operation of a refrigeration device is remarkably reduced, meanwhile, cold air waste is reduced, and the energy efficiency optimization requirement of medicine cold chain conveying is met; when the refrigerating device is shut down accidentally, the cold storage material can quickly release cold energy to maintain the low-temperature environment in the box body, and the conveying safety of the heat-sensitive medicine is guaranteed.

The utility model discloses an air conditioner indoor unit. The air conditioner indoor unit comprises a unit body, and the unit body comprises a shell, a first air outlet, a second air outlet, a return air inlet and an air duct arranged in the shell, the first air outlet is formed in the front side of the shell. The second air outlet is formed in the bottom of the shell. The return air inlet is formed in the top of the shell. The air inlet end of the air duct communicates with the air return opening. The air outlet end of the air duct communicates with at least one of the first air outlet and the second air outlet. In the refrigeration mode, the air outlet end of the air duct communicates with the first air outlet, discomfort caused by direct blowing of cold air to the human body is effectively reduced, in the heating mode, the air outlet end of the air duct communicates with the second air outlet, it is guaranteed that hot air flows downwards and directly reaches the ground, and the good heating effect and use experience are achieved. In conclusion, cold air can be conveyed upwards, hot air can be conveyed downwards, and the use comfort of a user is remarkably improved.

This invention discloses a dual-motor hair dryer, relating to the field of hair dryer technology. It includes a housing, a handle, and a mounting cover installed inside the housing. It also includes a dual-system blowing assembly, a drive assembly, a first adjustment assembly, and a second adjustment assembly located inside the mounting cover. In use, the right-side main motor fan system, through the cooperation of the air guide tube, main air duct, and inner air duct, delivers gas to the inner cylinder, evenly passing through the heating element. Simultaneously, the left-side auxiliary motor fan system delivers gas to the outer air duct through the air guide tube, auxiliary air duct, and flow equalization pipe. The gas flows through the annular air cavity, forming an annular air curtain that surrounds the hot air along the central axis. The annular cold air curtain and the hot air along the central axis are coaxially superimposed. Furthermore, the main and auxiliary air ducts are isolated, ensuring that the high temperature of the main air duct does not affect the auxiliary motor, resulting in high operating efficiency for the auxiliary motor. The main motor also experiences stable load due to the smooth air duct, significantly improving the overall energy efficiency and further achieving energy savings.

The ventilation device comprises a shell, a cold and hot module, an air inlet baffle, an air outlet baffle, a shifting rod, a rotating disc and an elastic piece, an air channel is formed in the shell, one end of the air channel is provided with a hot air inlet and a cold air inlet which are arranged up and down, and the other end of the air channel is provided with a first air outlet and a second air outlet which are arranged left and right; the air inlet baffle can be turned up and down to open the hot air inlet or the cold air inlet, the air outlet baffle can be turned left and right to open the first air outlet or the second air outlet, the shifting rod is provided with an abutting portion, and the rotating disc is provided with a concave-convex structure and can rotate to drive the air outlet baffle to be turned over through the second transmission structure. Meanwhile, the abutting part movably abuts against the concave-convex structure to enable the deflector rod to swing up and down, and the deflector rod drives the air inlet baffle to turn over through the first transmission structure. The air inlet baffle and the air outlet baffle are simultaneously driven by the rotary table, switching of cold and hot air and switching of the left and right air outlets can be controlled only by driving the rotary table, the number of action mechanisms is small, the structure is compact, and control is easy.

The utility model relates to a refrigeration air duct structure which comprises a flow dividing piece, a refrigeration structure and a draught fan, the flow dividing piece is provided with a hot air inlet, a flow guiding groove, an air inlet groove and a cold air outlet, and the flow guiding groove is communicated with the hot air inlet and the air inlet groove and used for guiding hot air flow input from the hot air inlet to the air inlet groove. The cold air outlet is not communicated with the hot air inlet, the flow guide groove and the air inlet groove. The refrigeration structure is used for cooling the hot air and forming cold air, and the refrigeration structure and the cold air outlet are oppositely arranged. The fan is arranged opposite to the air inlet groove, and the fan is used for guiding hot air flow in the air inlet groove to the refrigeration structure and enabling cold air formed by cooling of the refrigeration structure to flow out from the cold air outlet.

This ensures that insufficient cooling of the multiple storage containers located above the main storage unit is prevented. [Solution] The horizontal refrigerator 10R comprises a plurality of storage containers 80R provided above the storage body 11R so as to cover the top opening 11R2, a circulation fan 35 for circulating air in the storage chamber 13R, a cold air duct 40 provided in the storage body 11R between the storage chamber 13R and the top opening 11R2, defining a flow path 45 through which cold air blown out by the circulation fan 35 flows in and heads toward the plurality of storage containers 80R, and a plurality of auxiliary fans 60, each provided between the cold air duct 40 and the plurality of storage containers 80R, which change the direction of the airflow so that a portion of the cold air flowing into the cold air duct 40 heads toward the plurality of storage containers 80R, and the plurality of auxiliary fans 60 are provided at intervals along the extending direction of the flow path 45.

The utility model relates to the technical field of cooling tower demisting, in particular to a demisting and water collecting device of an energy-saving and environment-friendly cooling tower, which comprises a tower body and a demisting and water collecting device, the demisting and water collecting device comprises a demisting device and a water collecting device, the demisting device comprises an air duct, a fan and a frame, trundles are arranged at the bottom of the frame, the trundles are arranged in a groove at the top of the tower body, and the water collecting device is arranged in the groove. A plurality of air inlets are formed in the outer side of the air cylinder, air inlet pipes are arranged on the air inlets, a detachable air disc is arranged below the fan and connected with a water collecting device, and a plurality of air shielding plates are arranged on the side faces of the periphery of the frame. According to the demisting and water collecting device, a plurality of air inlets are formed in the outer side of the air duct, so that outside cold air entering is increased to be mixed with hot mist, and mist production is reduced; each air inlet is provided with an air inlet pipe, air is supplied to the central platform of the air duct from the outside of the tower, cold air is directly supplied into cold and hot mist through air inlet pipe pipelines, the mist is reduced through the condensation effect, and the air inlets and the air inlet pipes are used for supplementing air quantity when natural air inlet is insufficient.

The hog house cooling air cooler comprises a supporting table fixedly installed on the ground, a fan body is fixedly installed at the top of the supporting table, and a cooling mechanism is arranged at an air outlet port of the fan body; the cooling mechanism comprises an extension pipe fixedly installed at the air outlet port of the fan body, an installation sleeve plate is fixedly installed at the end of the extension pipe, and a plurality of air distribution holes are formed in the outer side wall of the installation sleeve plate. According to the cooling device, under the interaction of the supporting table, the fan body and the cooling mechanism, air output by the fan body passes through the extension pipe in the cooling mechanism, is evenly guided into all the bent pipes through the air distribution holes and then enters the underground cooling air conveying pipe, the underground temperature is relatively constant, the temperature is low, air in the pipe can be naturally cooled, and the cooling effect is good. The energy required by extra refrigeration is greatly saved, cold air is uniformly and mildly dispersed in the hog house through the air outlet pipe and the U-shaped air outlet end pipe and is prevented from directly blowing hog bodies, and a cool environment is efficiently created for the hog house in an energy-saving manner.

The invention relates to a copper material hot forging-cold heading composite technology based on an integrated forming device, and relates to the field of conductive copper part machining, the copper material hot forging-cold heading composite technology comprises the steps of feeding and heating, hot forging primary forming, collaborative switching, cold heading final forming, discharging and the like, in the collaborative switching step, an integrated driving mechanism has different driving modes, and a temperature control step is arranged between the hot forging step and the cold heading step. The temperature is controlled through the water-cooling heat insulation plate, the cold air nozzle and the like, the punch and the pressing block are controlled to work alternately through the hydraulic cylinder, and all the steps are coordinated through the PLC control system. The copper material hot forging-cold heading composite technology integrated forming device achieves the technical effects that copper material hot forging-cold heading composite technology integrated forming is achieved, the workpiece temperature is effectively controlled, the shaping and hardening effects are guaranteed, and the production efficiency and the product quality are improved.

The utility model discloses an air distribution device of a circulating fluidized bed incinerator. The air distribution device comprises an air cap, an air distribution air box, a water cooling air chamber, an air duct, a slag falling hopper, a slag falling pipe, a hearth water cooling wall, a slag discharging valve, a slag falling hopper transition section, a hearth and an air chamber water cooling wall. The air cap is welded at the opening of the top plate of the air distribution air bellow; the air distribution air bellow is supported on the conical slag falling hopper; the hearth is provided with three slag falling hoppers, the bottoms of the slag falling hoppers are welded together with circular slag falling pipes, the lower parts of the slag falling pipes are connected with slag discharging valves, the boundaries of the slag falling hoppers are welded together with a water cooling wall of the hearth, the adjacent slag falling hoppers are welded together through slag falling hopper transition sections, and the slag falling hopper transition sections are welded into an arc shape through steel plates; the air duct and the air distribution bellows are formed by welding steel plates, the water cooling air chamber is formed by welding an air chamber water cooling wall, the hearth is formed by welding a hearth water cooling wall, and the air cap is formed by forging; the slag falling hopper is conical, and the included angle a between the wall surface of the slag falling hopper and the horizontal plane is not smaller than 65 degrees, compared with the prior art, the slag discharging pipe of the circulating fluidized bed incinerator is changed into the slag falling hopper, the slag falling pipe and the slag discharging valve, large non-fluidization objects such as metal, glass and stones in the circulating fluidized bed incinerator can smoothly fall into the slag falling hopper and cannot be accumulated on the air distribution plate, and the slag discharging effect is good. And the annual available hours of the circulating fluidized bed incinerator can be effectively increased.

The invention relates to the technical field of air preheaters and discloses a low-resistance anti-ash-blocking air preheater which comprises a flue gas channel, a primary air channel, a secondary air channel, a heat storage element and an air guide pipe, the flue gas channel is used for high-temperature flue gas to pass through, the primary air channel is used for primary cold air to pass through, and the secondary air channel is used for secondary cold air to pass through. The heat storage element is used for exchanging heat with flue gas in the flue gas channel so that sulfides in the flue gas can be liquefied, the heat storage element communicates with the primary air channel and the secondary air channel, and cold air in the primary air channel and cold air in the secondary air channel can pass through the heat storage element and conduct heat exchange with the heat storage element. One end of the air guide pipe communicates with an outlet of the primary air channel, and an opening in the other end of the air guide pipe faces the heat storage element. According to the low-resistance anti-ash-blocking type air preheater, hot air of the primary air channel serves as a blowing medium, the hot air temperature is high, ammonium bisulfate with high viscosity on the heat storage element can be softened, and the adsorption capacity of the ammonium bisulfate to fly ash is reduced.

The utility model relates to the technical field of plastic-wood cooling and shaping, in particular to an air cooling device for cooling and shaping a plastic-wood wallboard, which comprises a shell, an air cooling device and a cooling device, an air cooling structure is installed on the inner side of the shell, the air cooling structure comprises a fixing frame, the fixing frame is fixedly installed on the rear wall of the inner side of the shell, and a rotating shaft is movably installed at the front end of the fixing frame through a bearing. By arranging the air inlet pipe, the fixing cylinder, the air guide pipe and the air distribution pipe, cold air can be guided to be blown out at an angle perpendicular to the surface of a product, so that the cold air is directly blown to the surface of the product, the cooling and shaping effect on the product is improved, the air distribution pipe can rotate, and the horizontal angle of the air distribution pipe can be adjusted when products with different widths are processed. The whole air distribution pipe can be located on the upper side of a product, then it can be guaranteed that cold air blown out of the air distribution pipe can act on the product, the energy utilization rate is increased, and the use experience of the device is guaranteed.

This invention proposes a device for recovering and utilizing the sensible heat of iron slag, comprising a collection chamber, a slag pot, a tilting machine, a chute, a cold air jet assembly, a first gravity dust collector, and a waste heat boiler. The tilting machine drives the slag pot to tilt sideways, injecting liquid iron slag into the chute. The outlet of the chute extends into the collection chamber, and the outlet of the cold air jet assembly is located below the chute outlet. The air inlet of the first gravity dust collector is connected to the exhaust port at the top of the collection chamber via a pipeline, and the exhaust port of the first gravity dust collector is connected to the air inlet of the waste heat boiler. This invention, through the cooperation of the cold air jet assembly and the chute, rapidly granulates and cools the liquid iron slag and recovers its sensible heat, significantly improving the sensible heat recovery rate of the liquid iron slag. The first gravity dust collector effectively removes dust generated during the iron slag cooling process, protecting the waste heat boiler. The waste heat boiler converts the recovered sensible heat into high-temperature, high-pressure steam, achieving efficient energy utilization and reducing the overall energy consumption of steel production.