37 results about "Blastpipe" patented technology

A heat exchange type burner for baking a torpedo ladle, comprising a Y-shaped burner (1), a gas pipe (2), a blast pipe (3), a connecting cover, (4) and a flue gas pipe (5), wherein the Y-shaped burner is respectively connected to the gas pipe and the blast pipe, the gas pipe is sleeved in the blast pipe, the blast pipe is connected to the connecting cover, one end of the blast pipe is sleeved in the flue gas pipe, and the flue gas pipe is connected to one end of the connecting cover. The heat exchange type burner further comprises an air distribution pipe (6) and a heat exchange fin (7), wherein the air distribution pipe is sleeved on the flue gas pipe, the air distribution pipe is communicated with the blast pipe, the heat exchange fin is fixed on the flue gas pipe, and the heat exchange fin is arranged between the air distribution pipe and the flue gas pipe. The burner can efficiently utilize flue gas heat to assist gas combustion, achieves high heat exchange efficiency and space utilization rate, has a good combustion effect, is easy to mount and dismount, and is convenient to use.

The utility model provides a blast air supplement system of a blast furnace. The blast air supplement system comprises a blast furnace blower; the blast furnace blower supplies air to the blast furnace hot blast stove through an air blowing pipeline, and the blast furnace hot blast stove supplies hot air to the blast furnace; the side face of the air blowing pipeline is connected with an air supplementing pipeline, one end of the air supplementing pipeline is communicated with the air blowing pipeline, and the other end of the air supplementing pipeline is communicated with a standby air source. The standby air source is a standby air blower or a compressed air storage tank. A check valve, a flow meter, a flow regulating valve and a stop valve are arranged on the air supplementing pipeline, and the check valve prevents gas in the air supplementing pipeline from flowing back towards the standby air source. According to the blast furnace blast air supplementing system, air is supplemented for the blast furnace hot blast stove through the air supplementing pipeline, the air supplementing pipeline is connected with the standby air source, the purpose of supplementing air for the blast furnace hot blast stove can be achieved, redundant air sources in a factory can be fully utilized, and the blast furnace blast air supplementing system is environmentally friendly, saves cost, and is simple in structure and easy to operate.

The pig farm deodorization system comprises an air blowing mechanism, an air draft mechanism and a filtering mechanism, the air blowing mechanism comprises an air blower and an air blowing pipe which are arranged on one side of a pig farm, an outlet of the air blower is communicated with an inlet of the air blowing pipe, and a plurality of air blowing heads are arranged on the air blowing pipe at intervals; the air draft mechanism comprises an air draft pipe and an air draft fan which are arranged on the other side of the hog house, an outlet of the air draft pipe is communicated with an inlet of the air draft fan, and an air draft opening is formed in the air draft pipe; the pig house has the advantages that after the air blower is started, generated air is conveyed through the air blowing pipe, the air is blown out from the air blowing head, fresh air is blown into the pig house, air flow and oxygen supply in the pig house are increased, the exhaust fan operates, negative pressure is generated in the exhaust pipe, the air is exhausted, and the air is exhausted. Vitiated air in the hog house is sucked into the exhaust pipe through the exhaust opening in the exhaust pipe, and under the combined action of the air blowing mechanism and the exhaust mechanism, the deodorization efficiency and the deodorization effect are improved.

The invention discloses a dense medium coal preparation plant intelligent medium adding device which comprises a medium transfer mechanism, a heavy liquid preparation mechanism and a heavy liquid output mechanism, the medium transfer mechanism comprises a horizontal transfer mechanism, a lifting hook, a weighing part and an electromagnetic chuck assembly, the lifting hook can move up and down, the weighing part is connected to the lifting hook, and the electromagnetic chuck assembly is connected to the weighing part. The electromagnetic chuck assembly is connected below the weighing part and can suck medium powder, the heavy liquid preparation mechanism comprises a concentrated medium barrel, a water supplementing pipeline and an air blowing pipeline, the top of the concentrated medium barrel is open and suitable for receiving the medium powder sucked by the electromagnetic chuck assembly, the water supplementing pipeline is communicated with the top of the concentrated medium barrel, and the air blowing pipeline is connected to the side portion of the concentrated medium barrel; and the heavy liquid output mechanism is communicated with the bottom of the concentrated medium barrel and is suitable for outputting heavy liquid to the production system. According to the device, medium powder can be automatically added, labor is saved, the working efficiency is improved, meanwhile, the adding amount of the medium powder is accurately controlled, the density of heavy liquid is accurately controlled, and the product quality is improved.

The utility model discloses gear cleaning equipment which comprises a cleaning box (1) and a plurality of water spraying pipes (2), a drawer is installed on one side face of the cleaning box (1) in a sliding mode, a plurality of storage shafts (3) are arranged in the drawer, and driving devices are connected between the ends of all the storage shafts (3). A plurality of grooves (4) are formed in each storage shaft (3), and a magnet (5) is arranged in each groove (4); a reciprocating device is arranged on the inner side wall of the cleaning box (1), a blast pipe (6) is arranged on the reciprocating device, and a plurality of exhaust holes (7) are formed in the blast pipe (6); a flow guide plate (8) is arranged on the bottom face of the drawer, and brush assemblies (9) are arranged at the positions, corresponding to the positions under the magnets (5), of the flow guide plate (8). And a water outlet (10) is formed in one side wall of the cleaning box (1). The cleaning device not only can improve the working efficiency, but also has the advantages of being good in cleaning effect, convenient to use, high in structural stability and convenient to clean.

The utility model relates to the technical field of powder spraying, in particular to a termite killing powder spraying device which comprises a blast pipe, the lower portion of the blast pipe is in butt joint with a powder containing bottle, an assembly bin is integrally and fixedly arranged on the rear side of the blast pipe, a blast cover is assembled in the assembly bin, and a blowing fan is assembled in the blast cover. Air inlet holes corresponding to the blowing fan are evenly formed in the outer wall of the assembling bin, an assembling tail head is assembled on the rear side of the assembling bin in a plugging mode, a handle is hinged to the rear end of the assembling tail head, a butt joint hose is in butt joint with the front end of the blowing pipe, and a powder spraying insertion pipe is in butt joint with the front end of the butt joint hose; an expansion pipe which is the same as the butt joint hose is arranged between the butt joint hose and the powder spraying insertion pipe in a butt joint mode, and the outer wall of the butt joint hose is sleeved with a maintenance cover. According to the utility model, the pipelines can be increased or decreased and maintained conveniently according to use requirements, and meanwhile, holding operation can be carried out according to the use requirements, so that the operation and use are more convenient and efficient.

The application discloses a pipeline spraying device with defect compensation and rapid drying functions, and relates to the technical field of spraying equipment.The pipeline spraying device comprises a main body, a bearing ring, a supporting arm, a rotating sleeve, a sleeve rod, a transmission rod, a feeding pipe, an electromagnetic valve, a threaded sleeve, a rotating ring, a blast pipe, a fan, a supporting cylinder, a gas conveying groove and filter cotton.The bearing ring, the load-bearing ring, the supporting arm and the rotating sleeve are arranged to improve the spraying effect, keep stable advancement, rotate and spray, make the spraying uniform, avoid defects, timely find and compensate for defects, guarantee quality, arrange the heating cavity, the blast pipe, the supporting cylinder and the filter cotton to rapidly dry, form circulating dry air flow, rapidly dry, improve production efficiency, filter and adsorb, reduce environmental pollution, avoid interference on defect observation, and have compact structure, ingenious design and convenience in use.

The utility model relates to the technical field of boilers, in particular to an air blast feeding device for boilers, which comprises a boiler, a feeding system and an air blast system, the feeding system comprises a belt conveyor, a fuel hopper and a spiral conveyor oppositely arranged on the outer side of the boiler, the fuel hopper is arranged in a Y-shaped forking mode, and two ends of the lower portion of the fuel hopper are communicated with discharge pipes. The discharging pipe is communicated with the feeding end of the spiral conveyor; the belt conveyor is obliquely arranged upwards in the direction of the fuel hopper, and the discharging end of the belt conveyor extends to the position over the fuel hopper; the air blowing system comprises an air blower and an air blowing pipeline, the air outlet end of the air blower is communicated with the air blowing pipeline, one end of the air blowing pipeline extends upwards and is bent to extend to the spiral conveyor, air blowing branch pipes are arranged at intervals, and the air blowing branch pipes are communicated with the discharging end of the spiral conveyor. Air is forcibly fed into the hearth through the air blast system, so that fuel and oxygen are fully mixed to be combusted in the hearth in a suspension manner, the combustion efficiency is improved, and the loss of unburned fuel is reduced.

The utility model belongs to the field of mining machinery, and particularly relates to a mining machinery adjusting device which comprises an adjusting base, a lifting adjusting assembly is arranged on the upper surface of the adjusting base, and a lifting transmission screw is driven by a micro motor to rotate through the arranged lifting adjusting assembly. In order to prevent mine ash from floating into the position of the lifting transmission screw rod in the mining operation process of mining mechanical equipment, compressed air is conveyed into a blast pipe through operation of an air pump, the blast pipe guides the compressed air to an air outlet groove, and the air outlet groove is communicated with the lifting transmission sliding block. The design of the air outlet groove ensures that compressed air can be obliquely blown out at a certain angle to form strong air flow, so that mine ash is prevented from falling to the position of the lifting transmission screw during mining of mining mechanical equipment, and a certain protection effect on the lifting transmission screw is achieved.

The utility model discloses a food dehydration device which comprises a base plate, the upper end of the base plate is fixedly connected with a conveying frame, the upper end of the base plate is fixedly connected with a fixing frame through a first fixing rod, the fixing frame is located over the conveying frame, and the side inner wall of the fixing frame is fixedly connected with a hot air box; the air blowers are fixedly connected to the side end of the fixing frame, the air blowers are symmetrically distributed at the left end and the right end of the fixing frame, the air blowers are fixedly connected with air blowing pipes, the air blowing pipes penetrate into the fixing frame, and the air blowing pipes communicate with the hot air box; a drying and dewatering mechanism is composed of a fixing frame, an air blower, an air blowing pipe, a hot air box, a heater and a heat conduction pipe, food can be dried and dewatered in the whole conveying process, drying is sufficient and thorough, and the dewatering effect is good; a material conveying and receiving mechanism is composed of the driving motor, the belt wheel, the conveying frame, the conveying belt, the inclined rail and the material receiving box, the operation procedure is optimized, and the operation efficiency is improved.

The utility model relates to the technical field of locomotive side wall welding, in particular to a locomotive side wall welding auxiliary device which comprises a conveying belt assembly, a conveying frame and stand columns, the conveying belt assembly is installed on the conveying frame, and the two stand columns which are oppositely arranged in parallel are arranged at the top end of the conveying frame. One sides of the two stand columns are jointly connected with a fixing plate used for installing a welding machine, a cleaning mechanism is further arranged between the two stand columns, the cleaning mechanism and the welding machine are oppositely arranged in parallel, and the cleaning mechanism is located above the conveying belt assembly. The cleaning mechanism comprises a transverse plate, a blower box, a blower pipe, a blower, a clamping piece, a blower cover and a piston rod, and an inserting groove used for installing the blower box is formed in the center of the upper end face of the transverse plate. When the locomotive side wall cleaning device is used, the two air blowers blow airflow into the air blower box through the air blowing pipe at the same time, the airflow entering the air blower box is blown to the locomotive side wall through the air blowing cover, and therefore dust and impurities adhering to the locomotive side wall can be blown away, and the purpose of cleaning the locomotive side wall can be achieved through the locomotive side wall cleaning device.

The utility model discloses a titanium dioxide feeding device which comprises a base, a feeding mechanism is arranged on one side of the upper end of the base, a feeding hopper is installed at the position of a feeding port of the feeding mechanism, a covering mechanism is installed at the position of an opening of the feeding hopper, and a blowing mechanism is installed at the position, located at the feeding end of the feeding mechanism, of the base. The feeding device has the beneficial effects that the covering mechanism is additionally arranged at the opening in the top end of the feeding hopper, so that the two-way screw rod can be driven to rotate through the motor II in the feeding and crushing process of titanium dioxide raw materials, and intermittent opening and closing of the cover plate under the guide of the sliding rod are realized; the defects that chippings splash and raise dust when the titanium dioxide raw materials are crushed are effectively overcome, meanwhile, the blowing mechanism is matched, air can be blown into the feeding mechanism through the powerful draught fan and the air blowing pipe when feeding is about to be finished, the titanium dioxide raw materials remaining in the feeding mechanism can be blown out conveniently, and waste of the titanium dioxide raw materials is avoided.

The utility model relates to blast furnace metallurgy technical field discloses a blast furnace air blast equipment based on fuel ratio configuration, including blast pipe, the inside bottom of blast pipe is fixedly connected with drive assembly, the left side fixedly connected with piston rod of drive assembly, the left side fixedly connected with sliding rod of piston rod, the left side fixedly connected with connecting column of sliding rod, the left side fixedly connected with U type board of connecting column, the inside rotatory connection has rotary rod a of U type board, the inside rotatory connection has rotary rod b of U type board, the inside fixedly connected with the air pipe of blast pipe, the inside fixedly connected with sliding assembly of air pipe, in the utility model, through optimizing the connecting structure of air pipe and blast pipe, realize the quick disassembly of air pipe, when the air pipe is deformed under the high temperature and high pressure working condition and influences the blast efficiency, can complete the replacement quickly, improves equipment maintenance efficiency and production continuity.

A burner having an air intake, a premix manifold, a blast tube, a rich fuel manifold, and a pilot. The blast tube includes a diffuser, an auxiliary passage, and a shutter. The shutter has at least an open position allowing air and fuel mixtures to flow through the auxiliary passage and the diffuser, and a closed position allowing flow through only the diffuser. Air moves from the air intake to the premix manifold where it mixes with a first fuel. The mixture moves through the blast tube and is ignited by the pilot, forming a lean center flame. A second fuel moves through the rich fuel manifold and ignites via the lean center flame, forming a rich secondary flame. The lean center flame and rich secondary flame combine to form a first flame.

The invention discloses an outdoor power supply for electric power guarantee and a control method.The bottom of a main shell is provided with a horizontal air duct, a vertical supporting frame is fixed to the front portion of the inner wall of the air duct, the middle of the supporting frame is rotationally connected with a horizontal hollow shaft, and the upper portion of the supporting frame is rotationally connected with a horizontal second shaft; a horizontal first shaft is rotationally connected to the middle of the main shell, a vertical direct current motor is fixed to the inner wall of the main shell, and the front end and the rear end of the main shell are each fixedly provided with two upper hinge bases and two upper buckling bases. Through cooperation of the power generation assembly, the wind shielding assembly, the blast pipe, the placement frame, the supporting arm and the like, the functions of an air blower and a solar cooker can be achieved, cooking can be assisted, the fan can be used in cooperation with the direct current motor, the comfort during picnic can be improved, the transmission assembly has the functions of a shovel and a hoe, and the practicability is high. Digging operation is facilitated, pot burying for rice making and the like are facilitated, and therefore picnic is facilitated.

The utility model relates to a lump ore mixed burning drying system, apply in lump ore drying technical field, solved the problem of higher production upgrade; including hot blast furnace, drying cylinder, air induction component and reflux component, set up the ignition burner on hot blast furnace, set up respectively on ignition burner all have electromagnetic cut -off valve's propane delivery pipeline, gas delivery pipeline, coal powder delivery pipeline and blast pipe, drying cylinder is used for drying to lump ore, and the air inlet of drying cylinder is connected with the air outlet of hot blast furnace, air induction component includes the air induction pipe of setting in drying cylinder far away from hot blast furnace one end and sets up in the air induction fan of air induction pipe, and the exhaust of air induction pipe is provided with the outer exhaust chimney, and the reflux component is used for the waste heat in drying cylinder to flow back to hot blast furnace, has reduced the coal powder consumption with the mixed burning mode of gas and coal powder, reduced fuel cost cost, can make full use of the residual gas in the factory again, the effect of saving production cost.

The utility model discloses an airflow drying device, and relates to the technical field of powder airflow drying. Comprising a central pipe, the outer edge of the central pipe is fixedly connected with a material smoothening plate, the material smoothening plate is evenly wound around the outer portion of the central pipe, the outer edge of the material smoothening plate is fixedly connected with a circle of sedimentation pipe, the bottom end of the sedimentation pipe is fixedly connected with a wind catching bottom frame, and a blast pipe is communicated with the interior of the central pipe. Through the arrangement of the spiral material smoothening plate, materials to be dried move in a rotational flow mode, and through the arrangement of the short settling pipe, the retention time of the materials in the settling pipe is prolonged, so that the drying time of the materials to be dried is prolonged, and the materials collide with one another in the rotating process, so that the drying efficiency is improved. The water on the surface is more easily separated from the boring surface, so that the drying efficiency is improved, the height of the equipment is reduced, the equipment can be installed and used in a common workshop, and the capital construction investment of the drying workshop is reduced.

The application discloses an air inlet structure of a blast gas stove and the blast gas stove. The air inlet structure of the blast gas stove comprises a first gas pipeline, a first air inlet pipe, a second air inlet pipe, a blast pipe and a blower. The first air inlet pipe and the second air inlet pipe are coaxially arranged, and the outlet end of the first air inlet pipe extends into the inner cavity of the second air inlet pipe. An annular channel is arranged between the outer side wall of the outlet end of the first air inlet pipe and the inner side wall of the second air inlet pipe, and the inner side wall of the inlet of the second air inlet pipe and the outer side wall of the inlet of the first air inlet pipe are sealed. The blast pipe is connected with the second air inlet pipe, and the blast pipe is internally provided with a blast channel. The blower is arranged at the inlet of the blast channel, the outlet of the blast channel is communicated with the annular channel, and the side wall of the inlet of the first air inlet pipe is provided with a backflow groove. The two ends of the backflow groove are respectively communicated with the contraction cavity of the first air inlet pipe and the blast channel. The application can avoid gas backflow caused leakage and improve the safety of the blast gas stove.

A burner having an air intake, a premix manifold, a blast tube, a rich fuel manifold, and a pilot. The blast tube includes a diffuser, an auxiliary passage, and a shutter. The shutter has at least an open position allowing air and fuel mixtures to flow through the auxiliary passage and the diffuser, and a closed position allowing flow through only the diffuser. Air moves from the air intake to the premix manifold where it mixes with a first fuel. The mixture moves through the blast tube and is ignited by the pilot, forming a lean center flame. A second fuel moves through the rich fuel manifold and ignites via the lean center flame, forming a rich secondary flame. The lean center flame and rich secondary flame combine to form a first flame.

The invention provides a containment isolation valve sealing test detection device and detection method, and relates to the field of isolation valves. The containment isolation valve sealing performance test detection device comprises a base, a limiting block is fixedly connected to the position, close to the left end, of the upper surface of the base, a detection pipe is fixedly connected to the inner side surface of the limiting block, and an air pump is fixedly connected to the position, close to the right end, of the upper surface of the base; and the left side surface of the air pump is fixedly connected with a blast pipe. By arranging the clamping device, the isolation valve needing to be detected can be positioned and limited, the isolation valve is prevented from shaking when a connector of the isolation valve is fixed, and therefore the butt joint efficiency is improved, by arranging a spring in the clamping device, elastic force can be applied to the movable connecting block all the time, the isolation valve can be conveniently taken out after detection is completed, and the detection efficiency is improved. And by arranging the limiting device, the problem that a plurality of tools need to be carried for fixing operation is solved, and therefore connection is more convenient.

This utility model discloses an anti-clogging device for the blower pipe of a wind-powered coal preparation machine, relating to the technical field of wind-powered coal preparation machines. It includes a protective cover, with a wind classifier fixedly connected to the inner side of the cover. A blower is fixedly connected to one side of the wind classifier, and the blowers are arranged sequentially from front to back. An air duct is provided inside the protective cover, and the air duct is connected to the blower. A mounting frame is fixedly connected to the inner side of the air duct, and a rotating rod is rotatably connected to the inner side of the mounting frame. Connecting frames are fixedly connected to both sides of the outer side of the rotating rod. This anti-clogging device for the blower pipe of the wind-powered coal preparation machine has a reasonable structural design. It can filter and crush large coal particles, preventing them from clogging the collection pipe. It can also clean coal dust accumulated inside the blower pipe, preventing coal dust from accumulating and causing blockage.

The invention relates to the technical field of coal processing equipment, in particular to raw coal grinding equipment and a using method thereof.The raw coal grinding equipment comprises a crushing and blowing assembly, a crushing and blowing assembly, a crushing and blowing assembly, a crushing and blowing assembly and a control assembly, the crushing and blowing assembly comprises a processing bin provided with crushing rollers, and a side air supply cavity and a side air blowing pipe are arranged on the processing bin; the hot air drying part comprises an electric heating bottom plate and a hot air bin; the powder discharging part comprises a powder bin arranged on the processing bin and discharging guide pipes which are mounted on the two sides of the powder bin and used for guiding out pulverized coal; wherein the crushing and blowing assembly can crush raw coal and provide blowing, the hot air drying part can provide a dry hot environment, crushed coal powder is dried through temperature and flowing hot air, and it is guaranteed that the coal powder with the qualified particle size is blown up; the powder outlet part can guide out the dissipated coal powder through a discharging guide pipe; the equipment adopts a method of extracting pulverized coal with qualified particle size by circulating air flow, has the function of synchronously crushing raw coal and collecting pulverized coal with qualified particle size, effectively improves the operation efficiency, breaks through a traditional material screening method, and reduces raised dust.

The present invention relates to an anti-corrosion superheater system for a waste incineration boiler, belonging to the field of waste incineration technology. It includes a boiler body, a smoke outlet pipe fitting, a first air blowing device located on the smoke outlet pipe fitting, and a superheater device. One end of the smoke outlet pipe fitting is communicated with the smoke outlet of the boiler body, and the other end is communicated with the superheater device. The first air blowing device is arranged on the smoke outlet pipe fitting. The first air blowing device includes a first blower and a first air blowing pipe. The first blower is arranged on the smoke outlet pipe fitting, the air outlet of the first blower is communicated with the first air blowing pipe, and the first air blowing pipe is communicated with the smoke outlet pipe fitting. By blowing low-temperature air into the smoke outlet pipe fitting, the present invention enables the low-temperature air to exchange heat with the high-temperature corrosive flue gas generated by the boiler body to generate high-temperature air, reducing the direct heat exchange between the high-temperature corrosive flue gas and the superheater device, fundamentally solving the problem of corrosion of the superheater device, and capable of improving the working efficiency of the boiler body.

The utility model relates to the technical field of pipeline machining, and particularly discloses pipeline welding equipment which comprises a base, a manipulator arranged at the upper end of the base, a welding gun arranged at the top end of the manipulator, two fixed seats arranged at the upper end of the base, a clamp arranged at the upper end of each fixed seat, fixed plates arranged at the upper ends of the fixed seats, and a movable frame arranged between the two fixed plates. An exhaust pipe fitting is arranged at the lower end of the movable frame and is arranged above the welding gun, a fixed frame is arranged between the two fixed seats, and a blast pipe fitting is arranged at the upper end of the fixed frame and is arranged below the welding gun. The blast pipe fitting is installed at the upper end of the fixing frame and can blow smoke upwards from the position below the pipeline, the smoke capturing rate of the exhaust pipe fitting is increased, and the smoke removing effect is remarkably improved.

The utility model discloses a dual-purpose mixed combustion chamber for coal gas, which belongs to the field of combustion chambers and comprises a dual-purpose mixed combustor and a mixed combustion chamber, the dual-purpose mixed combustor penetrates through the side wall of the mixed combustion chamber, and a backflow device is arranged in the mixed combustion chamber. The dual-purpose mixed burner comprises an air blowing device, an air supply pipeline located on one side of the air blowing device, a coal gas branch pipe located on the side wall of the air supply pipeline, a pulverized coal branch pipe penetrating through the side wall of the air supply pipeline and a secondary air blowing pipeline penetrating through the air supply pipeline and the pulverized coal branch pipe. Compared with the prior art, the device has the advantages that the secondary blast pipeline of the device blows in a multi-section split-flow mode, so that pulverized coal and coal gas can be uniformly kept in a rotational flow state in the conveying process, the situation that rotational flow wind is weakened due to the fact that a gas supply pipeline is too long is avoided, the output wind power is guaranteed, and meanwhile the conveying efficiency is improved. And the situation that the pulverized coal is accumulated in the coal gas branch pipe due to insufficient wind power is avoided.

An embodiment of the present invention provides an electric heating heat-conducting oil furnace, which includes a frame, a circulating oil pump, and a control cabinet; it further includes: a heating unit, which includes a supporting cross plate arranged on the frame, a first side plate and a second side plate arranged at both ends of the bottom of the supporting cross plate, a heating cylinder arranged on the first side plate and the second side plate, and a heater arranged in the heating cylinder; a liquid inlet pipe and a liquid outlet pipe are respectively arranged at both ends of the heating cylinder; a cooling unit, the cooling unit includes a temperature control mechanism, a cutting-off mechanism, a cooling mechanism, and a blast pipe rotatably arranged around the heating cylinder; the cooling mechanism includes a spiral pipe arranged on the outer wall of the heating cylinder and a water storage tank arranged on the supporting cross plate, and the spiral pipe is used for circulating the cooling water in the water storage tank; wherein, the cutting-off mechanism selectively controls one of the temperature control mechanism and the cooling mechanism to drive the blast pipe to rotate. The heating cylinder can be quickly and safely cooled down.

A circulating fluidized bed boiler with high heat utilization rate and a combustion method, belonging to the technical field of fluidized bed boilers. The invention is characterized in that: a residual powder collecting hood (3) is provided on the upper part of the combustion chamber of the combustion chamber furnace body (1), a flue gas passage is left between the residual powder collecting hood (3) and the combustion chamber furnace body (1), and the upper wall (301) and the lower wall (301) of the residual powder collecting hood form a powder inlet opening inward and downward; the residual powder collecting hood (3) is connected to the feed end of a venturi feeder (6) provided on the blast pipe (2) through an air duct (5); a guide plate (4) is provided below the residual powder collecting hood (3), the outer end of the guide plate (4) is fixed on the combustion chamber furnace body (1), and the inner end of the guide plate (4) extends below the residual powder collecting hood (3). The present invention realizes the recovery of unburned powder without adding additional negative pressure power equipment; the unburned powder is returned to the combustion chamber for combustion, ensuring the utilization rate of human energy and avoiding the waste of calorific value of the unburned powder when it is burned outside the combustion chamber.

The utility model discloses a hand-held wireless dust-collecting blast inflator pump, which relates to the technical field of dust-collecting blast inflator devices and comprises a shell, an air duct is arranged in the shell, an air duct valve is arranged in the middle of the air duct, an exhaust fan is arranged at the front end of the air duct, an air outlet is arranged at the rear end of the air duct, and the air outlet is communicated with the air duct. A dust collection head is further installed at the front end of the air duct, and a blast pipe connector is further arranged between the exhaust fan and the air duct valve. And a driver is also arranged in the shell. According to the utility model, the air duct is arranged, and the air duct valve is arranged in the middle of the air duct, so that the device can have different functions of dust collection and air blowing by controlling two different states of the air duct valve during use, and on the other hand, the device is also provided with the driver to control the movement of the piston; by matching with the piston cylinder, the one-way valve and the inflation interface, the device has an inflation function, and finally, the power supply of the device is connected with the mobile power supply interface, so that a charging function can be provided.

The utility model relates to a dehumidifying structure and multifunctional cooking equipment. The dehumidification structure comprises an inner container, an air blowing pressurization assembly, a condensate water box and a plurality of exhaust pipes. The air blowing pressurization assembly comprises a centrifugal fan and an air blowing pipe, the centrifugal fan is fixed to the outer side face of the inner container, and the air blowing pipe is communicated with the centrifugal fan and the inner container; one end of each exhaust pipe is communicated with the inner container, and the other end of each exhaust pipe is communicated with the condensate water box; compared with a structure of a single exhaust pipeline, the multiple exhaust pipes are arranged, so that when the total exhaust amount is consistent, it can be ensured that high-temperature smoke and steam are rapidly exhausted after cooking is completed, and meanwhile the caliber of each exhaust pipe is smaller than that of the original single exhaust pipeline; therefore, when the baking function works, the difference between the humidity of the exhaust pipe and the humidity of other positions of the inner container is relatively small, and baking is more uniform.

The present invention relates to the technical field of tanker cleaning, and discloses a steam-washing and blasting sealing device for light oil tankers. The steam-washing and blasting sealing device for light oil tankers comprises a sealing cover, a steam-washing circuit, and an exhaust circuit. The sealing cover is used to be installed at the open end of the tank body; the steam-washing circuit comprises a steam inlet pipe and a liquid discharge pipe. The steam inlet pipe is used to transport steam toward the interior of the tank body, and the liquid discharge pipe is connected to a waste liquid recovery device; the exhaust circuit comprises an air blast pipe and an exhaust gas discharge pipe. The air blast pipe is used to transport gas toward the interior of the tank body. One end of the exhaust gas discharge pipe extends into the interior of the tank body, and the other end is connected to an exhaust gas recovery device. The present invention integrates the steam-washing circuit and the exhaust circuit on the sealing cover, and completes the three processes of steaming the tank body, extracting sewage in the tank, and blasting exhaust at the same workstation, thereby improving the efficiency of car washing and avoiding environmental pollution caused by waste gas and waste liquid generated by the car washing operation.