573 results about "Smoke hood" patented technology

The invention discloses an anomaly diagnosis method and system based on a chain grate-rotary kiln pellet roasting temperature prediction model and a storage. According to the method, process detection parameters such as the thickness of a material layer of a chain grate machine, the temperature of a smoke hood of a preheating section, the coal injection amount of a main burner and the temperature of a kiln head of a rotary kiln serve as input, the pellet roasting temperature is predicted in advance through a prediction model constructed based on an XGBoost algorithm, and then the contribution size and direction of all the parameters to roasting temperature abnormity are determined through SHAP value analysis. According to the method, advanced information can be provided for production regulation and control, the hysteresis quality of traditional actual measurement analysis is overcome, meanwhile, key influence factors causing temperature abnormity are rapidly positioned, and accurate regulation and control are guided. The abnormality diagnosis system developed based on the method can improve the pellet production stability, the product quality and the production efficiency, reduces the production cost and the energy consumption, and plays an important guiding role in the intelligent production of the chain grate-rotary kiln oxidized pellets in the ferrous metallurgy field.

The invention provides an intelligent copper blowing system based on multi-modal sensing. The intelligent copper blowing system comprises a multi-modal sensing system, an intelligent decision and control module, a real-time simulation system, an air supply system and a flexible sealing smoke hood. The multi-mode sensing system collects melt components in the furnace, temperature field distribution, equipment operation states and environmental pollutant concentration data in real time. And the intelligent decision and control module predicts a flow field and pollutant diffusion path through a real-time simulation system based on the sensing data, and generates a dynamic control instruction. The air supply system adjusts the blast pressure and the oxygen concentration according to instructions, the flexible sealing smoke hood dynamically adjusts the expansion amount of the sealing apron board, and smoke leakage is restrained. The smelting efficiency can be improved, pollutant emission is reduced, and the service life of equipment is prolonged.

The utility model provides a dust removal exhaust fume collecting hood, and belongs to the technical field of exhaust fume hoods. The dust removal exhaust fume collecting hood comprises an exhaust fume collecting hood body and a translation adjusting mechanism, a fume opening is formed in the bottom of the exhaust fume collecting hood body, a connecting pipe communicated with the fume opening is installed at the top of the exhaust fume collecting hood body, a translation cavity is formed in the exhaust fume collecting hood body, and translation plates are movably connected to the two sides of the interior of the translation cavity; a contact groove is formed in the inner side of the translation plate and makes contact with the surface of the connecting pipe, the outer side of the translation plate is fixedly connected with a peripheral plate, and the connecting shell is movably connected to the front side of the exhaust fume collecting hood body. A medium for horizontally moving and adjusting the smoke collecting range of the smoke collecting hood body according to the actual smoke collecting requirement is provided for a user, the situation that the smoke collecting range is difficult to adjust when the smoke collecting hood body is used is avoided, and therefore the using adaptability and flexibility of the smoke collecting hood body are improved.

The utility model discloses an automatic cleaning type smoke hood all-in-one machine which comprises a shell, and an air inlet and an air outlet are formed in the shell. The cleaning structure is arranged in the shell, the cleaning structure comprises a conveying header pipe for conveying steam, a rotating shaft rotatably connected with the conveying header pipe, a connecting pipe communicated with the rotating shaft and a steam spray head communicated with the connecting pipe, and the steam spray head sprays the steam towards the purification assembly; the purification assembly is arranged in the shell and is used for purifying oil fume; oil smoke enters the shell from the air inlet, is purified by the purification assembly and then is discharged from the air outlet.

1. Name of the product in this design: Smoker (KZ-32). 2. Purpose of this design product: used for smoking food. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The invention discloses a method for improving coal gas recovery quality through dry dedusting, which comprises the following steps: S1, setting and dynamically adjusting the rotating speed parameter of a fan aiming at each stage of converter smelting, and controlling the fan to operate according to different operation links and blowing time periods in the smelting process and the set rotating speed parameter and time parameter; s2, raw material preparation and parameter regulation and control are carried out, components, temperature and charging quantity parameters of molten iron entering a furnace are set and controlled, and meanwhile the charging quantity and charging mode parameters of waste steel are set and regulated and controlled; s3, according to the silicon element content of the molten iron, correspondingly setting and controlling a furnace mouth micro differential pressure parameter; s4, in the main blowing smelting stage, oxygen supply flow parameters are matched, set and controlled according to the silicon element content of the molten iron; s5, auxiliary control parameter setting and measures are implemented, wherein the auxiliary control parameters comprise a smoke hood operation control parameter, an evaporative cooling system medium adjustment parameter, a gas recovery program optimization parameter and a fan rotating speed control mode configuration parameter; and S6, after smelting is finished, the recovery average value of CO in the coal gas is recorded. According to the method for improving the coal gas recovery quality through dry dedusting, the average CO value of coal gas recovery is larger than or equal to 55%, the heat value is high, the coal gas quality is stably improved during continuous production of a converter, and the cost reduction and efficiency improvement effects are obvious.

According to the multifunctional integrated oven trolley, fuel gas is adopted as energy, smoke generated in the barbecuing process can be reduced, no charcoal ash is left, and cleaning and maintaining are convenient; the multiple straight pipe furnace ends can be independently controlled, a user can adjust fire power according to requirements, gas consumption is reduced, the overall temperature control precision is improved, and partition temperature control is supported; the movable cabinet body is convenient to move, and food materials are convenient to stack due to the arrangement of the storage table; through the design of the exhaust fume collecting hood and the exhaust fume extraction device, exhaust fume gas generated in the barbecue process can be extracted, meanwhile, after the hood body rotates upwards by 90 degrees to be opened, some scattered exhaust fume can enter the main fume suction channel of the exhaust fume collecting hood along the auxiliary fume suction channel and the auxiliary fume suction opening, and due to the fact that the coverage range of the hood body is large, the range of the hood body is large. The range of suction of the spilled oil smoke is larger, so that the spilled oil smoke gas is further sucked, and finally, the oil smoke gas subjected to concentrated suction can be matched with a related oil smoke purifier for purification treatment.

The utility model relates to a range hood. The range hood comprises an exhaust fume collecting hood, an oil cup and a first oil guide plate, the exhaust fume collecting hood comprises a panel, a front plate and a back plate, wherein the front plate and the back plate are arranged above the panel at intervals; an upper air inlet is formed by the panel and the front plate; the first oil guide plate is connected with the front plate and arranged at the upper air inlet, and the rear end of the first oil guide plate obliquely extends downwards relative to the back plate, extends into the exhaust fume collecting hood and is located on the rear side of the top end of the panel. Oil dirt generated by the upper air inlet in the oil fume suction and discharge process is guided by the first oil guide plate to smoothly fall into the exhaust fume collecting hood and finally enters the oil cup, so that the oil dirt on the first oil guide plate can be effectively prevented from falling out of the exhaust fume collecting hood, and the problem that oil marks are generated by the upper air inlet in the oil fume suction and discharge process can be solved; and moreover, fewer parts are adopted, the structure is simple, the assembly is easy, the cost is lower, and the product performance is improved.

The application discloses a heat pipe heat sink welding process based on heat conduction and belongs to the technical field of welding. The welding equipment is composed of a vacuum box, a control box, an electromagnetic device, a heating plate, a control box, a vacuum straight-through pipe with a water cooling jacket, a water pipe, a vacuum variable-diameter cross pipe, a gas release valve, a vacuum valve, a condenser, a vacuum bellows, a vacuum pump, a baffle valve, a gas collecting pipe, a smoke hood, a liquid cooling source and a smoke purifier. The application has the advantages that the problems of product performance decline and even scrapping caused by the floating of the heat pipe in the traditional welding process are perfectly solved, the welding quality is improved, the vacuum pump is protected and the service life of the vacuum pump is prolonged, the process is simple and easy to implement, and the production cost can be greatly reduced.

The utility model belongs to the technical field of hot water equipment, and particularly discloses a testing tool which comprises an exhaust fume collecting hood, a flue gas sampling tube and a flue gas sensor, the exhaust fume collecting hood is provided with a fume inlet facing the combustor, and the exhaust fume collecting hood is provided with a plurality of installation structures. The flue gas sampling pipe is provided with a sampling hole, and the flue gas sampling pipe can be mounted on any mounting structure and conduct flue gas to the flue gas sensor; and when the smoke sampling pipe traverses the mounting structure, the sampling hole can traverse all fire holes of the combustor. According to the testing tool, by changing the position of the flue gas sampling pipe in the exhaust fume collecting hood, the flue gas values of the flue gas discharged from the fire holes at different positions in the combustor can be detected respectively, so that whether primary air or secondary air distribution of the combustor is reasonable or not is judged; and the improvement on the structures of the primary air hole and the secondary air hole of the gas water heater is facilitated.

The invention provides an intelligent fireproof and high-temperature steam cleaning oil fume integrated hood, and relates to the technical field of range hoods, and the intelligent fireproof and high-temperature steam cleaning oil fume integrated hood comprises an oil fume diffusion monitoring module used for obtaining an oil fume image; through a difference image method, according to the difference between the oil smoke image and the reference image, obtaining oil smoke diffusion data; vOC data are obtained; calculating a lampblack diffusion quantized value; the intelligent cleaning module is used for determining the optimal steam release temperature and the optimal steam release amount through an improved artificial neural network; according to the optimal steam release temperature and the optimal steam release amount, the steam release amount and temperature of the range hood are dynamically adjusted based on a PID control system of a radial basis function neural network, and the smoke hood is cleaned by releasing high-temperature steam; the flame monitoring module is used for acquiring a cooking bench image through a camera; through a convolutional neural network, identifying a flame combustion degree, and determining a kitchen fire occurrence probability value; and the fire extinguishing module is used for spraying water to extinguish the kitchen.

The invention discloses a forming and welding device and method for an oil screen and a smoke hood of a range hood, and particularly relates to the technical field of welding, the forming and welding device for the oil screen and the smoke hood of the range hood comprises a welding base, and further comprises a central stand column which is vertically arranged at the center of the welding base, and a plurality of splicing units are arranged on the periphery of the central stand column in a circular array mode. Under the control of the first adjusting part of the adjusting unit, the limiting part acts to clamp and limit the side plate of the smoke hood, the second adjusting part is synchronously linked for control, the second adjusting part cooperatively controls the splicing units to be close to each other and gather together to splice the smoke hood into a whole, the construction technology is optimized, and the construction efficiency is improved. According to the welding device, repeated debugging and assembling of workers are not needed, under the control of the adjusting unit, clamping, positioning and synchronous splicing operation of all the smoke hood side plates can be synchronously completed, the overall production efficiency is improved, welding consistency is guaranteed, and the overall welding quality is synchronously improved.

The invention discloses a novel heating control mode for a thermal deaerator of a converter flue gas waste heat boiler, which relates to the technical field of waste heat boiler equipment and comprises the following main steps of inspection before operation, water feeding operation, heating preparation, heating control, operation monitoring and heating ending and shutdown. Parameters such as water level, water replenishing quantity, a regulating valve, temperature detection and a flow meter are controlled through the deaerator, heat of circulating return water of a movable smoke hood, an oxygen lance opening and a discharging opening of the boiler and cooling water quantity during water replenishing of the deaerator are calculated, temperature rise of added soft water is calculated, and meanwhile, a PLC program is matched, so that the temperature of the boiler is increased. According to the method, the water supplementing amount during smelting and the steam heating amount of water supplementing in the non-smelting period are automatically controlled, a heating adjusting valve and a water supplementing adjusting valve of the deoxygenization water device are controlled, temperature control over the deoxygenization device is achieved, the deoxygenization device reaches the optimal deoxygenization temperature, and the problem that the optimal deoxygenization temperature cannot be guaranteed due to the discontinuity of converter steelmaking is solved.

The present application relates to a kind of smelting smoke cover auxiliary plate control method, device, equipment and medium, including according to smoke cover auxiliary plate in different historical smelting furnace power deformation, temperature and airflow field, through the mapping of smoke cover temperature field, smoke cover airflow field and smoke cover stress field by the simulation of multiple physical field coupling, construct digital twin three-dimensional dynamic model;Temperature, airflow intensity and the deformation degree of auxiliary plate key area in the temperature of smoke cover auxiliary plate in smelting process are input into digital twin three-dimensional dynamic model, and the predicted surface temperature distribution, the predicted flue gas component concentration and the predicted smelting furnace power are obtained;According to true smelting power and predicted smelting furnace power, determine the correction combination parameter value, according to the correction combination parameter value, correct the predicted surface temperature distribution and the predicted flue gas component concentration to obtain target surface temperature distribution and target flue gas component concentration;According to target surface temperature distribution and target flue gas component concentration, generate control parameter, according to control parameter control auxiliary plate opening degree.

The utility model provides an exhaust fume collecting hood and gas water heating equipment comprising the exhaust fume collecting hood. The smoke collecting hood comprises a hood shell used for collecting smoke, a smoke exhaust pipe extending upwards from the hood shell, and a baffle assembly fixedly contained in the smoke exhaust pipe. The baffle assembly comprises a support fixedly installed in the smoke exhaust pipe, a rotating shaft arranged on the support and a pair of baffles which are arranged on the rotating shaft in a pivoted mode and can be opened and closed. The support is further provided with a limiting piece which extends upwards and abuts against the pair of baffles when the pair of baffles are clamped so as to limit the minimum clamping angle between the pair of baffles. By arranging the limiting piece, the baffle cannot cross the rotating shaft to be overlapped with the baffle on the other side after being blown up, and therefore the baffle can smoothly fall back to the original closing position.

The range hood comprises a first shell, a second shell and an exhaust fume collecting hood, the periphery of the second shell is at least partially coated with the first shell, at least part of the first shell is located below the second shell, and the first shell can do up-and-down lifting motion relative to the second shell; a control panel is arranged on the front side of the first shell, the distance between the front side of the first shell and the front side of the second shell is smaller than the thickness of the part, located in the first shell, of the control panel, so that the control panel is kept below the second shell when the first shell ascends and descends, and the exhaust fume collecting hood is arranged on the first shell; the distance of the exhaust fume collecting hood extending forwards out of the front side of the first shell is a1, the vertical distance from the operation center of the control panel to the top face of the exhaust fume collecting hood is b2, the included angle between the connecting line from the operation center of the control panel to the front side of the exhaust fume collecting hood and the vertical direction is delta, tan delta = a1 / b2, a1 is larger than or equal to 0 mm, and delta is smaller than or equal to 40 degrees.

The embodiment of the utility model discloses an exhaust fume collecting hood assembly and a range hood, the exhaust fume collecting hood assembly comprises an exhaust fume collecting hood and a detection device; the exhaust fume collecting hood is provided with a mounting cavity; the detection device comprises a shell assembly and a detection assembly, one part of the shell assembly is located in the mounting cavity and fixedly connected with the exhaust fume collecting hood, the other part of the shell assembly is located outside the mounting cavity, and the detection assembly is arranged in the shell assembly and used for collecting temperature and / or concentration and correspondingly adjusting the working state of the extractor hood. The shell assembly in the exhaust fume collecting hood assembly can play a role in protecting the detection assembly, so that the problem that oil stains, oil fume, water vapor and the like make contact with the detection assembly, and consequently the detection assembly is damaged is solved, meanwhile, the shell assembly is partially embedded and fixed in the mounting cavity, the connection firmness between the shell assembly and the exhaust fume collecting hood is improved, and the service life of the exhaust fume collecting hood assembly is prolonged. Therefore, the connection firmness between the detection assembly and the exhaust fume collecting hood is improved, and the detection reliability of the detection device is further ensured.

1. Name of the designed product: smoke cover of range hood (assembled stainless steel). 2. Use of the designed product: for range hood accessories. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view.

A cooker hood with function of active noise cancellation is disclosed. The cooker hood comprises a hood body, a chimney, a fan motor, a sound-absorbing member, and an ANC system, in which the sound-absorbing member blocks or destroys a sound wave of a noise sound produced in case of the operation of the fan motor. The ANC system comprises reference microphones, error microphones, an electronic device, and loudspeakers, and is utilized for collecting a noise sound in chimney, generating an anti-noise signal according to the noise sound, and driving the loudspeaker to broadcast an anti-noise sound toward an internal of the chimney. Briefly speaking, the sound-absorbing member and the ANC system are used to apply a passive noise cancellation treatment and an active noise cancellation treatment to the noise sound produced during the operation of the fan motor.

This invention belongs to the field of iron and steel smelting technology, and particularly relates to a protective device and manufacturing method for a converter movable fume hood lifting lug. It includes lifting lugs and a movable fume hood. The lifting lugs are welded to the movable fume hood. A protective cover with an internal interlayer, matching the outer contour of the lifting lug, is hung on the outside of the lifting lug. The two sides of the interlayer of the protective cover are connected by ribs. Several V-shaped anchoring nails are welded to the interlayer wall of the protective cover. Refractory grout is filled into the interlayer of the protective cover. Asbestos is laid between the protective cover and the lifting lug. One end of the protective cover is welded to the movable fume hood. Several round rod hanging lugs are welded to both sides of the protective cover, and the upper ends of the round rod hanging lugs are hung on the lifting lugs. This invention isolates the lifting lug from the heat source through the protective cover, preventing the lifting lug from being burned. While the protective cover is fixed to the lifting lug and the movable fume hood, it reduces the contact area, thereby reducing heat transfer.

The utility model provides an exhaust fume collecting hood for a feed port of a copper smelting top-blowing smelting furnace, which comprises an inner exhaust fume collecting hood and an outer exhaust fume collecting hood, the bottom of the inner exhaust fume collecting hood is sleeved at the feed port, the outer exhaust fume collecting hood is sleeved outside the inner exhaust fume collecting hood, the outer exhaust fume collecting hood is mounted on a support of a belt conveyor, and the outer exhaust fume collecting hood is mounted on the support of the belt conveyor. A certain distance is formed between the bottom of the outer exhaust fume collecting hood and the smelting furnace, a through hole is formed in the top end of the outer exhaust fume collecting hood corresponding to a fume outlet of the inner exhaust fume collecting hood, and a fume guide pipe is mounted at the top end of the through hole; openings are formed in the sides, corresponding to the feeding belt conveyor, of the outer exhaust fume collecting hood and the inner exhaust fume collecting hood, and the feeding belt conveyor extends into the inner exhaust fume collecting hood from the openings; according to the utility model, smoke generated during feeding can be completely collected, and smoke overflow is reduced.

The invention discloses a range hood for multi-stage separation of oil fume and an oil fume separation method thereof.The range hood for multi-stage separation of oil fume comprises an exhaust fume collecting hood, an oil fume channel, a fan assembly and a fume outlet which are sequentially communicated from bottom to top, and an oil fume filtering device is arranged in the oil fume channel; the oil fume filtering device comprises a hollow oil collecting rod and an oil baffle plate with a cambered surface structure, wherein a plurality of inclined holes which are spirally and upwards arranged are formed in the oil collecting rod; one end of each oil baffle plate with a downward cambered surface is embedded into the inclined hole to be fixed, and the angle formed by each oil baffle plate and the oil collecting rod is ensured to be greater than 90 degrees; an oil filter screen is arranged between every two adjacent oil baffle plates for connection; the bottom of the oil collecting rod is movably connected with an oil receiving cup; during working, oil fume enters the oil fume channel through the fume collecting hood, escaped oil molecules are intercepted from bottom to top with the oil baffle plates and the oil filter screens, and the oil molecules attached to the oil baffle plates and the oil filter screens slide into the cavity of the oil collecting rod through the inclined holes along the oil baffle plates and finally flow into the oil receiving cup.

1. The name of the design product: smoke hood (T7ZK). 2. The use of the design product: for integrated kitchen work when inhaling oil fume. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The utility model discloses a smoke hood combined type oil smoke purifying and deodorizing machine which comprises a machine shell, the left end of the machine shell is fixedly communicated with an air inlet pipeline, the lower end of the air inlet pipeline is fixedly connected with a smoke collecting hood, and an oil smoke concentration sensor is fixedly installed on the inner wall of the smoke collecting hood. An anti-leakage mechanism, a suction fan, a high-voltage electrostatic oil smoke purifier and an air odor removal purifier are detachably mounted in the machine shell from left to right in sequence, a controller is arranged on the anti-leakage mechanism, and the suction fan, the high-voltage electrostatic oil smoke purifier and the air odor removal purifier are all in signal connection with the output end of the controller. When the cooking fume concentration sensor monitors cooking fume, the suction fan, the high-voltage electrostatic cooking fume purifier and the air odor removal purifier can be automatically started, when the cooking fume concentration sensor monitors that the cooking fume concentration is high, the air speed of the suction fan can be increased, the equipment does not need to manually touch a button, and the equipment can intelligently sense and automatically adjust the air speed; and the user experience and the use convenience are improved.

The utility model relates to the technical field of fire protection and smoke exhaust, in particular to a fire protection and smoke exhaust ventilator with an air filtering function, which comprises a smoke exhaust ventilation pipe, the lower end of the smoke exhaust ventilation pipe is fixedly connected with a smoke inlet cover, and the middle of the outer surface of the smoke exhaust ventilation pipe is fixedly connected with three fixing blocks. The upper ends of the three fixing blocks are all provided with vertically-through fixing holes, the upper portion of the inner wall face of the smoke exhaust ventilation pipe is fixedly provided with an air exhaust assembly, the lower portion of the outer surface of the smoke exhaust ventilation pipe is provided with an internally-externally-through mounting clamping groove, and the lower portion of the inner wall face of the smoke exhaust ventilation pipe is provided with a connecting sleeve groove. And a filtering assembly is movably clamped in the mounting clamping groove, and a smoke discharging assembly is fixedly connected to the upper end of the smoke discharging ventilation pipe in a penetrating and inserting mode. According to the fire-fighting smoke exhaust ventilator with the air filtering function, a two-stage filtering structure is adopted, the air filtering efficiency and quality are greatly improved, the content of pollutants in exhausted smoke is effectively reduced, and the external environment is protected.

The invention discloses a magnetite pellet low-temperature rapid oxidation consolidation method based on oxygen-enriched preheating roasting. The method comprises the following steps: supplementing oxygen-enriched air 1 at a cooling blast position of a cooling section I of a circular cooler, introducing the oxygen-enriched air 1 into a rotary kiln through negative pressure formed by main pumping, and finally introducing the oxygen-enriched air 1 into a PH preheating section of a chain grate; oxygen-enriched air (2) is supplemented to a cooling blast position of a cooling section II of the circular cooler, and the oxygen-enriched air (2) is led to a TPH transition preheating section of the chain grate; oxygen-enriched air (3) is supplemented to a smoke hood of the PH preheating section of the chain grate machine; the oxygen-enriched air (1), the oxygen-enriched air (2) and the oxygen-enriched air (3) which are supplemented not only can ensure the oxygen concentration required by oxidation preheating of the pellets in the chain grate machine, but also can prevent nitric oxide from being generated by high oxygen concentration in the rotary kiln. The oxygen enrichment devices are additionally arranged at multiple positions, oxygen-enriched air is supplemented, reasonable oxygen concentration distribution in the chain grate and the rotary kiln is achieved, and low-temperature rapid oxidation and solidification of magnetite pellets are achieved.

The present application relates to a kind of PVC film unit forming roller smoke exhaust device, including smoke hood assembly, uniform wind structure, adjusting device, oil smoke settling device and exhaust fan;Smoke hood assembly includes smoke pipe, first side wall plate, second side wall plate, third side wall plate and fourth side wall plate;Smoke pipe is equipped with oil smoke inlet hole;Adjusting device includes swing arm, fixed shaft and cylinder;Swing arm middle part is fixedly connected with pivot;Cylinder rod of cylinder is fixedly connected with journal bearing, and inner ring of journal bearing is tightly matched with pivot;Compared with prior art, the beneficial effects of the present application are: by the adjusting device set, avoid when film is introduced, film and smoke hood interference, by the uniform wind pipe set, avoid local blockage of smoke pipe.

This application discloses a smoke hood. The smoke hood includes a frame, a connector, and a smoke collection assembly. The connector includes a first connecting portion and a second connecting portion. The smoke collection assembly is mounted to the frame via the connector. One of the first connecting portion and the second connecting portion is connected to the frame, and the other is connected to the smoke collection assembly. The first connecting portion is located on the side of the second connecting portion near the interior of the smoke collection assembly. The second connecting portion has a first mounting portion, and the side of the first mounting portion near the rear end face of the smoke collection assembly has a recessed mounting groove facing the front end face of the smoke collection assembly. Through this method, this application can improve the installation efficiency of the smoke hood.