77results about How to "Stable airflow" patented technology

The invention relates to the technical field of waste gas multi-stage spraying treatment, and discloses a printing and dyeing setting machine waste gas multi-stage spraying treatment device which comprises a spraying tower, the outer wall of the spraying tower is fixedly connected with three conveying pipes, one end of each conveying pipe is fixedly connected with a flow dividing pipe, the interior of each flow dividing pipe is fixedly connected with an atomization spray head, and the atomization spray heads are fixedly connected with the spraying tower. A gas inlet pipe is fixedly connected to the bottom of the spray tower, cooling fins are fixedly connected to the middle of the inner wall of the spray tower, and a filtering assembly is arranged on the inner wall of the spray tower and used for filtering impurities in waste gas. According to the waste gas treatment device, the problems that a spraying treatment device is insufficient in gas-liquid contact time, waste gas distribution is uneven, sufficient combination and cooling are difficult, and the treatment effect is poor are solved, waste gas is evenly distributed, atomized water can make sufficient contact, pollutants are more efficiently adsorbed, dissolved or chemically reacted, and the removal effect is improved.

The multifunctional electric hot water tobacco pot comprises a pot body with a cigarette holder, an electronic control assembly and a power source supplying power to the electronic control assembly are arranged in the pot body, an electronic cigarette air cavity channel is further formed in the position, away from the cigarette holder, of the pot body, one end of the electronic cigarette air cavity channel is communicated with the outside, and the other end of the electronic cigarette air cavity channel is communicated with the middle of a smoke guide pipe. An air pressure sensor electrically connected with the control circuit is arranged at an external communication port of the electronic cigarette air cavity channel in a limiting mode, and the air pressure sensor serves as a switch device to transmit a signal used for starting or closing the electric heating piece to the control circuit. The functional smoke cup capable of being electrically connected in a split mode is adopted, the corresponding function mode of the smoke cup is adopted, string is not prone to occurring in use, sanitation and cleaning are convenient, and meanwhile a foundation is laid for smoke cup washing. And the electronic cigarette air cavity channel is arranged far away from the cigarette holder, so that the condition that the electronic cigarette air cavity channel is polluted or blocked by the cigarette holder is effectively avoided.

The invention discloses a cut tobacco stem separating device and method. The separating device comprises a pressure equalizing chamber, an impurity discharging spiral conveyor, a star-shaped material throwing roller, an airflow material throwing mechanism, a winnowing box, a feeding hopper and a gathering cover. An air outlet is formed in the top of the pressure equalizing chamber; the winnowing box is positioned above the pressure equalizing chamber; the star-shaped material throwing roller is positioned at the air outlet; the airflow throwing mechanism and the feeding hopper are both communicated with a feeding port in the side face of the winnowing box. According to the tobacco shred and stem separating device, airflow is adopted for throwing materials, and light materials (such as tobacco shreds) and heavy materials (such as stems) are thrown into the winnowing box at different throwing speeds and angles. Meanwhile, when the materials are thrown by the air flow, the material throwing direction is upward inclined material throwing, the horizontal moving speed of the materials in the cavity of the winnowing box is low, the horizontal moving distance of the materials in unit time is short, the utilization rate of the winnowing box can be effectively increased, the length of the box can be effectively reduced, and the occupied area of equipment can be reduced.

The utility model provides a lotus leaf tea fragrance capturing device, which relates to the technical field of flower fragrance collection and comprises an equipment shell, a control device arranged on the front side of the equipment shell, a breather pipe arranged at the top of the equipment shell, a support frame arranged at the top of the equipment shell, a gas collection tank arranged at the top of the equipment shell, and a gas concentration detector arranged at the top of the gas collection tank. A rubber sealing ring is arranged at the bottom of the air collection tank, an air guide plate is arranged on one side of the equipment shell, a placement plate is arranged on one side of the equipment shell, and an air guide turbine disc is additionally arranged at the top of the equipment shell, so that the air flowing speed and flow can be increased through the additionally arranged air guide turbine disc during use; the device is simple in structure and convenient to use, rapid spreading and capturing of fragrance are facilitated, the fragrance is more evenly distributed in the device, capturing efficiency is improved, meanwhile, the contact area of the fragrance and a capturing medium is enlarged, the adsorption effect is enhanced, and therefore more stable airflow is provided, normal operation of the device is maintained, the collection process of the fragrance is accelerated, and collection time is shortened.

The invention provides an induction type material lifting device. The induction type material lifting device comprises a self-sliding pipe and a wind power material lifting pipe which are connected through an elbow to form a V shape. The bottom of the elbow is opened to form a discharge port, an openable bottom shell is hinged to the discharge port, an arc-shaped turning plate is movably connected into the bottom shell and used for guiding powder falling from the articulated chute to be turned upwards into the wind power lifting pipe, and an air inlet is formed between the turning plate and the inner wall, away from the articulated chute, of the bottom shell; a gas flow sensor is arranged in the wind power material lifting pipe and is used for detecting gas flow and feeding back a detection value to the controller; an adjusting mechanism controlled by the controller is arranged at the bottom of the elbow, is respectively connected with the bottom shell and the material turning plate, and is used for adjusting the opening degree of the air inlet and the opening and closing of the bottom shell. According to the induction type material lifting device, the problem of material leakage of the discharging opening in the normal powder conveying process can be avoided, powder loss and waste and air dust pollution caused by powder leakage are avoided, and the powder conveying stability is improved.

The utility model relates to the technical field of fiber fabric air pipes, and discloses a multidirectional micropore flow guide fiber fabric air pipe which comprises a first air pipe, an air inlet is formed in the right side of the first air pipe, a plurality of reinforcing layers are fixedly connected into the first air pipe, and a plurality of ventilation openings are formed in the outer wall of the first air pipe. A first flange ring is fixedly connected to the left side of the first air pipe, a second flange ring is fixedly connected to the left side of the first flange ring, a second air pipe is fixedly connected to the left side of the second flange ring, and a supporting ring is fixedly connected to the middle of the outer wall of the first air pipe. Air enters the first air pipe through the air inlet, air flow is distributed to the flow guide layers under the action of the strengthening layers, the strengthening layers and the first air pipe are sewn, cylindrical balance is kept under the action of vertical and lateral tension, air is exhausted for air supply, the multiple strengthening layers in the first air pipe ensure that the air flow is stable and pressure is balanced, and the strength of the air pipe is enhanced. The service life is prolonged.

The utility model discloses an unequal air gap motor structure and a scroll compressor, belongs to the technical field of compressors, and aims to solve the problems that the motor efficiency is influenced and vibration and noise are caused by adopting a uniform air gap structure. According to the technical scheme, the unequal-air-gap motor structure comprises a plurality of stator punching sheets and a plurality of rotor punching sheets, stator inner holes are formed in the stator punching sheets, the rotor punching sheets are located in the stator inner holes, and a plurality of magnetic poles are arranged on the sides, close to the rotor punching sheets, of the stator punching sheets. A plurality of air gaps are formed between the sides, close to the rotor punching sheet, of the magnetic poles and the outer ring surface of the rotor punching sheet, a plurality of concave structures are arranged on the sides, close to the rotor punching sheet, of the magnetic poles, the intervals of the air gaps are unequal, and through the concave structures which are the same in shape and structure and are mutually symmetrical, the machining difficulty is reduced, and the length of the air gaps can be remarkably increased; and meanwhile, an unequal air gap structure is formed, so that the noise in the operation process of the motor is reduced, the noise in the operation process of the scroll compressor is further reduced, and the performance and the reliability of the scroll compressor are improved.

The utility model discloses an air detector, which relates to the field of air detection and is characterized by comprising a main body, a detection sensor and an air pump, an air inlet pipe is arranged at the top end of the main body, a spiral air inlet pipe is arranged at one end, far away from the main body, of the air inlet pipe, an air inlet cover is arranged on the air inlet pipe, and the air inlet cover is hollow and contains the spiral air inlet pipe. A plurality of air ports are formed in the air inlet cover in the circumferential direction. The air inlet cover comprises an upper cover and a lower cover which can be separated and combined, the air inlet pipe penetrates through the lower cover and is fixedly connected with the lower cover, a filter screen ring groove is formed in the inner bottom face of the lower cover, and a coarse filter screen is detachably connected into the filter screen ring groove. The spiral air inlet pipe is arranged, so that the air flowing path can be prolonged, the air flow is more stable, and the detection precision of the detection sensor is improved.

The utility model relates to the technical field of bag-type dust removers, and discloses a bag-type dust removal connecting structure which comprises a first connecting ring, two connecting blocks are fixedly connected to the inner wall of the first connecting ring, an expansion ring is fixedly connected to the left side of the first connecting ring, and a convex ring is fixedly connected to the left side of the first connecting ring. A second connecting ring is detachably connected to the left side of the first connecting ring, a sealing groove is formed in the second connecting ring, a plurality of first springs are fixedly connected to the inner wall of the sealing groove, sealing rings are fixedly connected to the right sides of the first springs, and a clamping ring is fixedly connected to the interior of the second connecting ring. According to the utility model, dust-containing gas can be effectively prevented from escaping, the clean and safe working environment is guaranteed, the harm of dust to the health of personnel and the surrounding environment is greatly reduced, the stable airflow and pressure environment in the bag-type dust collector can be maintained, the efficient development of dust collection operation is ensured, and the reliable operation cycle and the service life of equipment are prolonged in an assisting manner.

The invention discloses fine processing and sorting equipment for organic rice, and relates to the technical field of rice processing, the fine processing and sorting equipment comprises a support, a winnowing mechanism for removing wizened rice is arranged at the top of the support, and a control mechanism for limiting the falling amount of the rice is arranged above the winnowing mechanism; a winnowing mechanism is arranged on the top of the support, a screening mechanism for removing small-particle impurities is arranged below the winnowing mechanism, the winnowing mechanism comprises an outer shell fixedly connected to the top of the support, and an air inlet is formed in one end of the outer shell. According to the invention, air flow is introduced into the air outlet, so that wizened particles in the rice are blown to the air outlet by the air flow, empty shells, broken rice, grass clippings and other light impurities in the rice are removed, meanwhile, the rice can be treated mildly by using wind power sorting, the broken rice rate increase caused by rough operation is reduced, the sorting efficiency is improved, meanwhile, the loss of the rice can be reduced, and the production cost is reduced. The overall quality of the rice is improved.

The utility model relates to an air pressure sensor steady flow leak hunting tool comprising a bottom plate, a sensor positioning seat is installed on the bottom plate, and two sides of the sensor positioning seat are respectively provided with an air inlet pipe assembly and an air outlet pipe assembly; the air inlet pipe assembly comprises an air distribution block, an air inlet flow stabilizing pipe and a pressure gauge are installed on the air distribution block, a test air inlet is formed in the air distribution block, and the test air inlet is communicated with the air inlet flow stabilizing pipe; the air outlet pipe assembly comprises a guide fixing plate, the guide fixing plate is tightly attached to the sensor positioning seat, and an air outlet flow stabilizing pipe is slidably installed in the guide fixing plate and driven by an air cylinder; the pipe diameters of the air inlet flow stabilizing pipe and the air outlet flow stabilizing pipe are the same as the size of an air channel in the air pressure sensor. According to the utility model, the precision detection of the barometric sensor is realized, the detection efficiency is improved, and the pipe diameters of the air inlet steady flow pipe and the air outlet steady flow pipe are the same as the size of the internal air passage of the barometric sensor, thereby ensuring the stability of air flow passing through the barometric sensor.

The ball screw comprises a rod body, a first through hole is formed in the rod body in the axial direction, the first through hole penetrates through the end, used for being connected with a ball cup, of the rod body, the rod body is further provided with a second through hole, and one end of the second through hole penetrates through the end, away from the ball cup, of the first through hole to form a first opening; the other end of the second through hole extends to the surface of the body to form a second opening. When the nut is driven by the motor to drive the rod body to move through the ball, extruded airflow in the shell enters the first through hole from the second opening in the surface of the rod body and flows out of the first opening, or the extruded airflow flows in from the first opening and flows out of the second opening, and compared with a gap between the nut and the roller path, the gap between the nut and the roller path is smaller. The ventilation effect of the first through hole and the second through hole is better, so that airflow circulation in the left cavity and the right cavity is smooth, the stability of the air pressure in the sealing cavity of the shell is facilitated, and the situation that the air pressure difference causes large pressure to the dustproof cover and the clamp is prevented.

The invention provides an air inlet system for a semiconductor reaction cavity and a discrete control method of the air inlet system. The gas inlet system comprises a controller and at least one group of gas inlet pipelines, each group of gas inlet pipelines comprises an upstream pipeline, a mixer and a plurality of downstream pipelines, the upstream pipelines are connected with a gas source, the mixers are arranged between the upstream pipelines and the downstream pipelines, the downstream pipelines are connected to the semiconductor reaction cavity, and the controllers are connected with the gas source. A switching valve is arranged on each downstream pipeline, and the switching valves are used for automatically controlling the on-off of the downstream pipelines; and the controller is used for controlling the on-off state of the switch valve by adopting a binary data column so as to obtain a target film form on the substrate. According to the air inlet system, the corresponding downstream pipelines can be switched on and off by controlling the switch valves so as to adjust the air flow in the group of air inlet pipelines, so that the control on a flow field in the semiconductor reaction cavity is realized, and the shape, thickness, doping uniformity and the like of a film formed by deposition are further controlled.

The invention provides a low-iron-loss blast furnace smelting method, which relates to the technical field of vanadium titano-magnetite smelting, and comprises the following steps: S1, adding raw materials with a specified furnace charge structure into a blast furnace for material distribution, and starting smelting; s2, after the furnace condition of the blast furnace is stable, the furnace inlet air volume is adjusted to be within the preset air volume range, and meanwhile the oxygen enrichment rate is adjusted to be within the preset oxygen enrichment rate range; s3, the smelting air temperature is adjusted to a preset temperature range, the coke ratio is controlled to be a preset coke ratio, the coal ratio is controlled to be a preset coal ratio range, and the content of silicon and titanium is controlled to be within a preset first value range; and S4, smelting is stopped after continuous smelting is conducted for a preset time length. By optimizing the smelting method, the blast capacity in the furnace is increased, the charging system and the air supply system are optimized, the airflow is stabilized, and the coal gas distribution is improved; the furnace temperature is reasonably controlled, the coke ratio is reduced, the iron loss is reduced, and the problem that the iron loss is high in an existing blast furnace vanadium titano-magnetite smelting method is solved.

The application relates to a double-channel rotating detonation combustion chamber structure with an inlet total pressure adjusting function, which comprises a Tesla valve arranged at the inlet of the rotating detonation combustion chamber, the Tesla valve comprises a shell and a flow channel, the inlet end and the outlet end of the flow channel are respectively provided with pressure adjusting structures, the radial outer side of the flow channel is provided with an injection channel, the injection channel comprises an air outlet channel and a pressurizing channel communicated with the air outlet channel, and the side, away from the pressurizing channel, of the air outlet channel is provided with an opening and closing assembly for opening or closing the air outlet channel, the opening and closing assembly comprises a supporting plate, a plurality of opening and closing doors and a self-locking driving part, and the self-locking driving part is used for synchronously driving the plurality of opening and closing doors to be close to or away from the outlet side of the air outlet channel. The application has the effects that when the rotating detonation combustion chamber is in an air thin belt, the air intake of the air inlet channel is automatically enhanced, the rotating detonation combustion chamber preferentially intakes the air in the air inlet channel, the air supply of the combustion chamber is ensured, and the adaptability and stability of the combustion chamber in different environments are improved.

The present invention belongs to the technical field of pressure regulating and reducing valves, and specifically relates to a large-caliber high-pressure hydraulic pressure regulating and reducing valve for wind tunnel test equipment, wherein the valve body is provided with an inflow channel, an outflow channel and a pressure regulating and reducing cavity, the valve seat is fixed on the opening of the inflow channel and the pressure regulating and reducing cavity, the lower end of the noise reduction sleeve is fixedly connected to the valve seat, and the upper end is butted with the valve cover, a plurality of outflow holes are provided on the noise reduction sleeve, the cavity between the outer wall of the noise reduction sleeve and the inner wall of the pressure regulating and reducing cavity is connected with the outflow channel, the valve flap is fixedly installed on the valve flap cover, a through hole is provided on the valve flap, a plurality of balancing holes are provided on the upper wall of the valve flap cover, the valve flap cover is movably installed in the valve cover, the valve cover is fixed on the through hole between the pressure regulating and reducing cavity and the outside, the upper end of the valve flap cover is connected to the valve stem, and the valve stem passes through the valve cover and is connected to the piston rod of the hydraulic cylinder. The present invention can reduce the driving force of the opening and closing process, improve the adjustment accuracy; is beneficial to the on-site pipeline layout; plays the role of reducing noise and stabilizing airflow; and realizes the role of reducing noise and stabilizing airflow.

The utility model belongs to the field of gas flow metering, and particularly relates to a gas flow metering device. The gas flow metering device comprises a cover body, a shell, a rectification part and a metering assembly, an opening is formed in the shell, the cover body covers the opening and forms an inner cavity, a flow passing opening is formed in the rectification part, the rectification part divides the inner cavity into a gas inlet cavity and a rectification cavity, the gas inlet cavity and the rectification cavity are communicated through the flow passing opening, and the metering assembly comprises a gas flow inlet. And the airflow inlet and the overflowing opening are staggered. According to the gas flow metering device, the reasonable layout of the rectification part and the staggered arrangement of the rectification part and the gas flow inlet act together to reduce the pressure loss of the gas flow in the metering process, so that the overall gas flow transmission efficiency and the metering accuracy are improved.

The invention discloses a wafer cassette carrying platform, and relates to the field of semiconductor equipment, and the wafer cassette carrying platform comprises a base which is used for carrying a wafer cassette; the shell is arranged on the base, the shell and the base form a containing cavity used for containing the wafer box, the shell is provided with an outlet used for taking wafers from the wafer box and an inlet used for placing the wafer box, and the outlet and the inlet are not located on the same face of the wafer box carrying table. The outlet is connected to an opening of a machine table, the outlet and the opening are always in a communicated state, the shell comprises a fixed part and a movable part, the fixed part is fixedly connected to the base, and the movable part can move relative to the fixed part to open or close the inlet. The outlet of the wafer box carrying table and the opening of the machine table are always in a communicated state, and the inlet can be closed through the movable part, so that a production line with low cleanliness requirement can be met, and the production cost is effectively reduced.

The invention discloses a low-wind-resistance guard plate device, an automobile exhaust system and an automobile, and relates to the field of automobiles, the low-wind-resistance guard plate device comprises a front silencer guard plate used for supporting a front silencer, an exhaust pipe guard plate used for supporting an exhaust pipe and a rear silencer guard plate used for supporting a rear silencer, the front section of the front silencer guard plate is provided with a front silencer windward side, and the rear section of the front silencer guard plate is provided with a rear silencer windward side; the front section of the rear silencing guard plate is provided with a rear silencing windward side, and the front silencing windward side and the rear silencing windward side are matched with the airflow streamline. According to the invention, airflow in the area near the vehicle bottom exhaust system can be controlled, and the purpose of reducing wind resistance is achieved.

The utility model relates to the technical field of plenum chambers, in particular to an adjustable plenum chamber air supply structure which comprises a chamber body, an air inlet pipe, an air supply pipe, a driving assembly, a guide assembly, an adjusting assembly, a mounting assembly and a filtering assembly. An air inlet pipe is arranged on one side of the box body, an air supply pipe is arranged on the other side of the box body, a driving assembly is arranged on the side wall of the box body, a guide assembly is arranged on the inner wall of the box body, an adjusting assembly with an adjusting function is arranged below the guide assembly, a mounting assembly is arranged in the box body, and a filtering assembly is arranged in the mounting assembly; the driving assembly is started to drive the guide structure to move bidirectionally, the guide structure can drive the adjusting structure to move bidirectionally, the air direction of the air supply outlet and the size of the air outlet can be adjusted through the adjusting structure, and therefore the purpose of air volume adjustment can be achieved.

The method and system for automatically extracting key frames of blast furnace material surface video provided by the present invention collects material surface video of blast furnace smelting process, locates the significant area of ​​material surface image based on boundary prior and image feature space, extracts accurate feature points of significant area of ​​image, and calculates pixel displacement of two adjacent frames of image according to optical flow method; then proposes a method of fusing local density maximum and GMM model clustering to identify material surface state; finally, divides the video collected by high-temperature industrial endoscope into different periods according to the change of density of image feature points, and extracts key frames of each material distribution period based on material surface state recognition result. The present invention can accurately identify material surface state and eliminate redundant information of material surface video, and automatically extract material surface video key frames with stable central airflow and obvious image features from blast furnace material surface video. At the same time, the present invention is suitable for automatic extraction of key frames of other videos with periodic changes and uneven image quality.

The invention discloses a flow guide structure, an air conditioner and a flow guide control method.The flow guide structure comprises a heat exchange module, a fan and a flow guide module, the fan is used for blowing airflow to the heat exchange module, the flow guide module is provided with a flow guide plate located between an air outlet of the fan and the heat exchange module, and the flow guide plate is used for guiding the heat exchange module. The posture of the flow guide plate can be changed so as to adjust the state of airflow blown to the heat exchange module; wherein the heat exchange module comprises an upper heat exchanger and a lower heat exchanger which work independently, and the flow guide module has at least one of a conventional posture, a water blowing prevention posture, a dehumidification heating posture, a dehumidification cooling posture and a dehumidification middle posture. The flow field state between the fan and the heat exchange module can be effectively adjusted, and the air outlet comfort degree is effectively improved.

This utility model belongs to the field of wind tunnel testing and relates to a wind tunnel testing device for performance testing of aerospace metal skin. It includes: a high-pressure blower, a gas storage tank, a test air duct, a first barometer, and a controller. The high-pressure blower is connected to the inlet end of the gas storage tank, and the outlet end of the gas storage tank is connected to the test air duct. The first barometer is located inside the gas storage tank, and the first barometer, the high-pressure blower, and the controller are electrically connected. The gas storage tank is a spherical tank, and its interior is equipped with a honeycomb flow guide grid and a turbulence damping net. The honeycomb flow guide grid and the turbulence damping net divide the internal space of the gas storage tank into a first space and a second space. The first space is connected to the inlet end of the gas storage tank, and the second space is connected to the outlet end of the gas storage tank. After the high-pressure blower injects airflow into the first space, the airflow sequentially passes through the honeycomb flow guide grid and the turbulence damping net into the second space. This utility model is suitable for dynamic load identification tests on square plate-shaped aerospace metal skin.

This invention relates to a shock tube gas distribution method and system. During shock tube experimental gas preparation, a gas distribution column and a mixing tank are used in conjunction to actively control the internal pressure of the gas distribution column. An additional pressure-reducing stage is added between the gas cylinder and the mixing cylinder. The gas distribution column buffers large fluctuations in gas flow and pressure, resulting in a more stable gas flow and significantly improving the accuracy of the experimental gas component ratio. Simultaneously, the mixing tank has only one inlet connecting to the gas distribution column and one outlet connecting to the shock tube, improving the tank's strength and pressure-bearing capacity, and enhancing gas distribution safety.

The utility model relates to the field of ink-jet printer parts, and discloses a portable replaceable ink-jet printer nozzle for chemical application. The inner surface of the equipment shell is fixedly connected with a limiting clamping groove, the inner surface of the equipment shell is fixedly connected with an ink-jet main body, the outer surface of the ink-jet main body is fixedly connected with an ink-jet port, and the inner surface of a positioning plate is provided with a thin-film resistance plate; during use, the positioning plate, the ink jet plate and the adsorption gasket integrally form a spray head, the protective cover is obliquely inserted into the position of the corresponding limiting clamping groove after being taken out of the ink box, the telescopic motor is started to complete forward pushing, and the ink jet plate is driven by the ink box to rotate. The whole positioning plate is rapidly heated to form a large number of bubbles, the middle adsorption gasket adsorbs falling ink, the side protection plate ensures that ink airflow for code spraying is stable, and the flow guide strip guides ink hung on the surface of the ink spraying plate to the outer surface of the side protection plate.

The utility model discloses a piston structure of a high-temperature air bleed valve, and relates to the technical field of air bleed valves. The piston assembly comprises an upper piston and a lower piston, the upper end of the lower piston extends into the upper piston from bottom to top and is in threaded connection with the upper piston, and the upper end face of the lower piston is flush with the upper end face of the upper piston. The split type piston structure is adopted, the upper piston and the lower piston are in threaded connection, only the upper piston can be replaced after the sealing end face of the upper end of the upper piston is abraded, maintainability is improved, and cost is reduced.

This utility model relates to the field of blast furnace technology, specifically to a special tool for blocking blast furnace tuyeres and a pulverized coal injection (PCI) system. The special tool for blocking blast furnace tuyeres is used to inject a sodium silicate aqueous solution into a PCI system. The PCI system includes a PCI body and a coal conveying pipeline. A branch pipe is connected to the coal conveying pipeline, and a branch valve is installed on the branch pipe to control its on / off state. The special tool includes a purge pipe, a solution tank, and a connecting pipe connected in sequence. The end of the purge pipe away from the solution tank is connected to an air compressor, and the purge pipe is detachably connected to the solution tank. The special tool is connected to the coal conveying pipeline via the branch pipe. The sodium silicate aqueous solution is blown into the PCI body by the air compressor, mixes with the pulverized coal air from the coal conveying pipeline, and is then sprayed. This eliminates the problem of discontinuous air supply and effectively prevents the PCI clogging.

The present invention provides a blast furnace smelting method with low iron loss, which relates to the technical field of vanadium-titanium magnetite smelting, including: step S1: adding raw materials of a specified charge structure to the blast furnace for distribution, and starting smelting; step S2: after the blast furnace condition is stable, adjusting the furnace air volume to a preset air volume range, and adjusting the oxygen enrichment rate to a preset oxygen enrichment rate range; step S3: adjusting the smelting air temperature to a preset temperature range, controlling the coke ratio to a preset coke ratio, controlling the coal ratio to a preset coal ratio range, and controlling the silicon-titanium content to be within a preset first value range; step S4: terminating the smelting after continuous smelting for a preset time length. The present invention increases the furnace air volume, optimizes the charging system and the air supply system, stabilizes the airflow, and improves the gas distribution by optimizing the smelting method; reasonably controls the furnace temperature, reduces the coke ratio, and reduces the iron loss, thereby solving the problem of high iron loss in the existing blast furnace smelting method of vanadium-titanium magnetite.

The present invention relates to the field of natural gas mining and filtering equipment, and in particular to a three-phase separation device that can further improve the oil-water separation efficiency, comprising a sewage storage tank, a cyclone, a rectifier and a gas-liquid separation component that are arranged above the sewage storage tank and are connected in sequence, the cyclone, the rectifier and the gas-liquid separation component are all connected to the sewage storage tank through the sewage pipes at their bottoms, the cyclone is provided with an air inlet, and the gas-liquid separation component is provided with an air outlet. The present invention adopts a horizontal tank hump design, which greatly improves the oil-water separation efficiency, and is particularly suitable for natural gas filtration and purification treatment processes.

A sterilizing dryer comprises a machine body, a feeding device and a discharging device. The machine body comprises a frame, a conveyor belt, a roller and a drying and sterilizing box. A plurality of discharging devices are symmetrically arranged on both sides of the feeding device. The plurality of discharging devices are hinged to each other and to the feeding device. The conveyor belt is rotatably connected to the frame. The feeding device is placed on the conveyor belt and moves with the conveyor belt. The lower part of the frame has two front-to-back symmetrical frame shaft holes. The surface of the frame has a plurality of frame air holes evenly distributed. The middle part of the upper part of the frame has two left-right symmetrical driving plates. An intermediate groove is formed between the two driving plates. An intermediate groove guide groove is formed at the entrance of the intermediate groove. A driving groove is provided in the middle of each driving plate. An inner groove is provided in the middle of the driving groove. The inner groove has symmetrical outer grooves on the front and back sides. Each outer groove has a driving guide groove on the outside.