79results about How to "Fully dry" patented technology

The application relates to the technical field of film drying, and discloses a drying and forming device for films, which comprises a shell, two groups of cooling cylinders are rotatably installed in the opposite inner walls of the shell, rotary joints are installed at the two ends of the two groups of cooling cylinders, connecting pipes are installed on the sides, away from the corresponding cooling cylinders, of each rotary joint, and the two cooling cylinders are staggeredly arranged, the two groups of staggeredly rotating cooling cylinders are arranged in the shell, drying mechanisms are arranged on the two sides of the corresponding cooling cylinders, and the film material can be subjected to regional and adjustable drying treatment during movement; when the film passes through the staggeredly arranged cooling cylinders, film sections with different thicknesses can obtain differential heat dissipation effects due to the difference in contact area with the cooling cylinders; in cooperation with the drying mechanisms, the thin-wall region can be prevented from being damaged due to excessive heating, and the thick-wall region can be ensured to be fully dried, so that the uniformity and yield of film material drying and forming are improved, and the problem of poor adaptability of traditional devices to film thickness changes is effectively solved.

The utility model discloses a kind of white tea withering calls multi-layer spreading and airing device, belong to tea processing technical field, a kind of white tea withering calls multi-layer spreading and airing device, including base and the self-locking universal wheel of symmetry installation in the bottom of the base, the top of the base is fixedly connected with frame by support, the inside lateral symmetry of the frame is fixedly connected with support frame, and the support frame is longitudinally equidistant and is provided with multiple groups, guiding hole is opened in the support frame, drying frame is installed in the top of the support frame, the inside of the drying frame is fixedly connected with support screen, it will multiple drying frame from the inside of frame from different directions pull out, then white tea is laid on the support screen of each drying frame, and the device is moved to sunlight by the self-locking universal wheel of base bottom to white tea is dried, can effectively prevent upper and lower layers between shading sunlight, can make the tea on multilayer drying frame can be fully dried.

The invention discloses a production method of mask base cloth. Spun silk fibers subjected to degumming treatment are made into a spun silk net directly suitable for curing processing through an integrated net forming system comprising a continuous drying device, a free opening device and a carding net forming device. A vibration loosening device, a free loosening device and an overturning loosening device are sequentially arranged in a drying box comprising a heating device, so that full and uniform drying is synchronously realized in flexible loosening of degummed spun silk fibers, and high-quality principle preparation is provided for processing of mask base cloth; full-automatic drying of the spun silk fibers without manual operation is achieved, and then the drying efficiency of the spun silk fibers is remarkably improved; direct web forming of the dried spun silk fibers is achieved through a cotton spinning axial flow cotton slitter and a cylinder cover plate carding machine with a slivering device and a cotton box, and then efficient production of the high-quality pure spun silk mask base cloth is achieved, wherein the cotton spinning axial flow cotton slitter and the cylinder cover plate carding machine are sequentially connected with the drying device, and the slivering device is removed.

This invention discloses an automated line and method for processing dried tofu shreds, belonging to the field of bean product processing technology. The shredder includes an inclined conveyor belt and a cutting blade holder, with a pair of cutting rollers installed inside the cutting blade holder; an impregnation tank including an outer casing and an impregnation conveyor box, the impregnation conveyor box being installed inside the outer casing, a lifting frame mounted on the outer casing, and a lifting assembly mounted on the lifting frame for lifting the impregnation conveyor box; a transition conveyor frame including a transition conveyor net and a first air-cooling frame, the first air-cooling frame outputting towards the transition conveyor net; the impregnation conveyor box having an open end facing the transition conveyor frame; a vibrating chamber; and a reciprocating drying frame including a drying conveyor net, a second air-cooling frame, and a spiral drying box, the second air-cooling frame outputting towards the drying conveyor net; the spiral drying box is used for feeding and drying dried tofu shreds, solving the technical problems of continuous conveying during impregnation and incomplete moisture removal during air-cooling in existing dried tofu shred processing methods.

The present application relates to crystallizer drying technical field, especially to a kind of crystallizer baking drying device and its using method, including crystallizer main body, and fixedly installed on the support vertical frame of crystallizer main body, be provided with for the drying mechanism in the drying of crystallizer main body inside in support vertical frame, the sealing mechanism for being used to seal its top in crystallizer main body, wherein, drying mechanism includes setting in the inside of crystallizer main body lifting frame, and setting in the top of lifting frame movable crosspiece, heater is slidably arranged on lifting frame.The present application is favorable to the more thorough water vapor drying in the crystallizer main body, improves the effect of crystallizer baking drying, keeps the inside of crystallizer completely dry to facilitate to solve the electric slag ingot blowhole, avoid the heat of prior art cannot be uniformly transmitted to the entire crystallizer inside, and the crystallizer drying is not sufficient condition caused, while being favorable to the opening and closing of crystallizer main body more convenient, improves the sealing of crystallizer main body.

The utility model discloses an efficient multi-machine-head film blowing machine which comprises a plastic extruding machine, a feeding barrel, a drying and dewatering mechanism, a flow dividing pipe, a forming mechanism, a guide frame, a winding mechanism and an electric heating wire, the feeding barrel communicated with the plastic extruding machine is fixed on the plastic extruding machine, the electric heating wire is fixed in the feeding barrel, the drying and dewatering mechanism extends into the feeding barrel, and the flow dividing pipe is arranged on the flow dividing pipe. The left end of the plastic extruding machine is connected with a flow dividing pipe, the flow dividing pipe is communicated with the two forming mechanisms, a guide frame is arranged above the forming mechanisms, and a winding mechanism is arranged on the ground on the left side of the guide frame. Water in raw materials is fully dried, and the water is prevented from affecting the quality of a follow-up formed film.

The utility model discloses a quick-drying device for hand bag color printing, which comprises a drying box and a transmission mechanism located in the drying box, the transmission mechanism comprises a transmission frame, the transmission frame is fixedly connected between two sides of an inner cavity of the drying box through a connecting plate, and the utility model relates to the technical field of hand bag color printing. According to the quick-drying device for hand bag color printing, transmission is conducted through the transmission belt on the transmission mechanism, the transmission belt can drive the multiple double-hook frames to conduct transmission, the multiple double-hook frames can sequentially penetrate through the drying box, then a hand bag is hung on the double-hook frames and passes through the drying box, and color printing on the two sides of the hand bag can pass through the two rotating pipes at the moment; the air outlet pipe is ventilated through air extraction of the air blower, the air outlet pipe can ventilate the rotating pipe through the connecting pipe, the rotating pipe can guide heat of the electric heating plate to the middle, hot air is blown to color prints on the two sides of the hand bag at the same time, therefore, the hand bag can be dried rapidly, and the color printing and drying efficiency of the hand bag is improved.

The utility model relates to kitchenware storage technical field, and disclose a kind of kitchenware drying storage device, comprising: storage box, the inside of storage box is provided with storage cavity, and the inside rotation of storage cavity is equipped with multiple groups of barrier pole;Water storage mechanism, water storage mechanism is located at the bottom of storage box, and water storage mechanism includes the water storage seat of setting in the bottom outer wall of storage box, sealing strip is arranged between water storage seat and storage box, and positioning assembly that water storage seat is positioned is arranged between water storage seat and storage box, when kitchenware is placed in storage cavity, residual moisture can be quickly drained downward through draining plate, avoid moisture accumulation in kitchenware and storage cavity, reduce the kitchenware corrosion and damage problem caused by dampness from the source, the design of water storage mechanism is very reasonable, and water storage seat is set in the bottom outer wall of storage box, and there is sealing strip to ensure sealing, prevent water leakage, and the inclined groove and flow guide groove in water storage cavity can concentrate and guide water.

The invention provides clothes processing equipment and a drum drying control method, the clothes processing equipment comprises a drum body assembly, the drum body assembly comprises an inner drum, an outer drum and a lifting rib, the inner wall surface of the side wall of the inner drum is provided with a mounting area, and the mounting area is provided with a first through hole; the lifting rib is arranged in the mounting area, and a cavity is defined by the bottom wall and the side wall of the lifting rib; the bottom wall of the lifting rib is provided with an opening and the side wall is provided with a second through hole; when the second through hole is in an open state, the first through hole, the opening, the cavity and the second through hole are sequentially communicated to form a passage, and the passage is communicated with the outer cylinder and the inner cylinder; when the second through hole is in a closed state, the passage is disconnected; the inner cylinder can be switched between a porous structure state and a non-porous structure state by controlling opening or closing of the second through holes in the lifting ribs; in the washing or rinsing stage, the second through hole is closed, and the inner barrel is isolated from the outer barrel; and in the drying or drum drying stage, the second through hole is opened, the inner drum communicates with the outer drum, hot air flows between the inner drum and the outer drum, and the drying uniformity is improved.

The utility model discloses a horizontal lifting vertical seed dryer, which relates to the technical field of drying equipment and comprises a drying box and a C-shaped bucket elevator, the drying box is mounted in the C-shaped bucket elevator, a discharge pipe is arranged at the lower end of the drying box, and the lower end of the discharge pipe is communicated with a horizontal section at the lower end of the drying box. A feeding port is further formed in the horizontal section of the lower end of the C-shaped bucket elevator, three temporary storage assemblies used for reducing the falling speed of the seeds are arranged in the drying box from top to bottom, and a feeding assembly used for dispersing the seeds is arranged at the upper end of the drying box; according to the seed drying box, seeds falling from top to bottom can be received through the arranged temporary storage assemblies during use, the seeds are put down after staying for a period of time, and the seeds can be stayed for multiple times through the arranged temporary storage assemblies, so that the staying time of the seeds in the drying box can be effectively prolonged, and the seed drying efficiency is improved. And the seeds are fully dried.

The utility model discloses a mop rotation structure and mop, mop rotation structure includes guide cylinder, elastic reset piece, gyration cylinder, press cylinder and cleaning assembly, and the outer wall of guide cylinder is provided with the rotation -stop gear that projects downward around, and the lower extreme fixed sleeve of guide cylinder is provided with the locking sleeve, elastic reset piece is sleeved in the outer wall of guide cylinder, and its lower extreme is pressed on the upper end surface of locking sleeve, gyration cylinder rotatable removal is sleeved in the outer wall of guide cylinder, and its lower extreme is pressed on the upper end surface of elastic reset piece, and the upper end surface of gyration cylinder is provided with inner bevel gear and outer bevel gear from inside to outside, press cylinder fixedly provided with concentric inner cylinder and outer cylinder, and the inner cylinder is sleeved in the guide cylinder in the mode of axial sliding, and the lower end surface of outer cylinder is fixed with drive gear, and drive gear is engaged with outer bevel gear, cleaning assembly is sleeved in the lower part of gyration cylinder, and is driven to carry out one -way rotation with gyration cylinder. The utility model discloses a mop rotation structure and mop, to improve the convenience of mop use.

The utility model discloses a drum-type veneer drying device convenient for transmission conversion, which belongs to the technical field of veneer drying devices and comprises a case, a drying bin and a cooling bin. The vertical circulating elevator is arranged in the drying bin, and each hanging basket of the vertical circulating elevator is provided with a transposition mechanism; the two groups of roller conveyors are in butt joint with the two opposite sides of the vertical circulating elevator, and one group of roller conveyors is arranged in the cooling bin; the horizontal roller type conveyors are used at feeding and cooling discharging places, veneers enter the hanging baskets of the vertical circulating lifters with the help of the transposition mechanisms, transmission conversion is achieved, the vertical circulating lifters fully utilize the space of a three-dimensional plant, the staying time of the veneers in the drying bin is prolonged, and the drying efficiency of the veneers is improved. And the drying efficiency of the wood veneers is guaranteed while the wood veneers are fully dried.

The utility model belongs to the aluminium sheet coating drying technical field, specifically is a kind of aluminium sheet coating quick drying device, including base, the frame is fixedly connected on the base, the top side of base is equipped with three fixed sleeves, and the fixed sleeve is arranged in frame, and the cavity inner tube is slidably assembled in each fixed sleeve, the top port of cavity inner tube is fixedly connected with suction cup, the first limit disc is sleeved on the fixed sleeve, the second limit disc is sleeved on the cavity inner tube, and the spring is fixedly connected between the first limit disc and the second limit disc;When the aluminium sheet after coating is dried, the upper and lower surfaces of the aluminium sheet can be fully dried, the design of drying both sides simultaneously greatly shortens drying time, improves production efficiency, and the upper surface of the aluminium sheet is dried by waste heat, so that the waste heat is effectively and fully utilized, energy consumption is reduced, and energy utilization efficiency is improved.

The present application relates to PP cotton filled sofa cushion and its preparation method, PP cotton filled sofa cushion, including cushion cover and cushion body, the cushion body can be contained in the inside of cushion cover, the inside of the cushion cover is fixedly connected with moisture-proof layer, the cushion body includes PP cotton filling layer and bottom soft pad layer, a plurality of ventilation components are arranged between the PP cotton filling layer and the bottom soft pad layer, a plurality of through grooves are opened along the length direction of the PP cotton filling layer, a drying frame is arranged in the inner cavity of the bottom soft pad layer, a drying assembly is arranged in the drying frame, the moisture in the through groove is guided into the drying frame through the ventilation component, and then the moisture is dried through the drying assembly. When the present application is used for a long time, the PP cotton filling layer in the inside of the cushion cover can be effectively dehumidified, the PP cotton filling layer in the inside of the cushion cover is fully dried, and the whole sofa cushion is prevented from being rotted by indoor moisture.

The utility model discloses a kind of drying device for wheat processing, it is related to the technical field of wheat processing drying, including base, the base top center is fixed with support pile, the support pile both sides are equipped with two load-bearing frames distributed in up and down, load-bearing frame inside is movably equipped with drying frame, same side two load-bearing frame between the same adjustment component is equipped with, for adjusting the distance between two drying frames, the adjustment component includes two L type limit rods, two L type limit rods are respectively arranged in bottom load-bearing frame front and back two sides, the front and back two sides of bottom load-bearing frame are all provided with sliding slot. The utility model moves by lifting and pulling top load-bearing frame and drives drying frame to move together, so that telescopic rod is stretched to support it, to realize the relative displacement between two load-bearing frames, it is convenient to adjust the distance between relative drying frame, avoid shading sunlight and ventilation effect, realize sufficient drying, improve drying effect and convenience.

The utility model discloses a polytetrafluoroethylene special oven of vacuumizing, including chassis, bearing frame and drying cylinder, the both sides of chassis are welded with a side support board respectively, and one of side support boards is fixed with servo motor. Advantageous effect: be provided with chassis, bearing frame, side support board, servo motor, inclination adjustment frame, drying cylinder, displacement sensor, slope, PLC controller, start servo motor work through servo controller, promote servo motor according to the fixed angle of rotation angle counterclockwise rotation, and then servo motor output end drives chassis counterclockwise through inclination adjustment frame, make the drying cylinder on bearing frame lean to left side, when the displacement of displacement sensor detection reaches the preset value of PLC controller, and then the hydraulic cylinder of slope is started by PLC controller and stretches, makes the contact block of hydraulic cylinder top and bearing frame bottom meet, adopts this mode, can realize the drying cylinder discharge end inclination of horizontal arrangement, reaches the effect of full discharge.

This invention relates to a rapid clothes drying device based on hot air circulation and its working method, belonging to the technical field of drying equipment. It includes a shell, with a vibration unit installed inside the shell, and an air circulation drying unit hung on the side wall of the shell. Clothes are hung on the vibration unit, and the air circulation drying unit draws in air from inside the shell, dries and heats it, and then blows it into the shell from the top. The air circulation drying unit consists of a heating chamber with evenly distributed air outlets on its bottom surface, located above the vibration unit. A fan is installed on the top of the heating chamber, and an air supply pipe is installed on the top of the fan. A drying unit is installed on the air inlet side of the air supply pipe, with its air inlet connected to the inside of the shell and its air outlet connected to the air supply pipe. This invention vibrates the clothes on the hanger, preventing them from sticking together and increasing the drying area. The vibration accelerates the removal of moisture from the clothes. The drying unit on the air supply pipe ensures that the air is dry during the drying process, guaranteeing efficient drying of the clothes.

The utility model discloses a drying device is used in biological organic fertilizer processing, including base and the left stand and right stand of connecting in the both sides of base, be connected with the feed pipe on the left stand, and one end of feed pipe is connected with heating assembly, and the other end of feed pipe is rotatably connected with the drum through the bearing, and the other end of drum is rotatably connected on the one end of the pivot, and the other end of pivot is fixed on the right stand, and the other end of pivot is connected with a plurality of stirring assembly after the drum is penetrated, and the auxiliary rolling assembly is installed on the drum and base, and the drum is controlled rotation through the drive component, and the cylinder body of drum is hinged with the sealing cover, the utility model discloses the heat of heater through feed pipe is blown into the drum through the air blower, and the drum is constantly rotated through the drive component, and the organic fertilizer in the drum can constantly tumble, and the big piece of organic fertilizer is scattered through the arc stirring rod, so that hot air can be fully dried to the organic fertilizer, and the drying efficiency is greatly improved.

The application discloses to wallboard processing technical field, concretely for a kind of drying device for finish paint, including box, the inside of box is fixedly connected with drying chamber isolation plate, is set on drying chamber isolation plate Ventilation groove, the both sides of ventilation groove are respectively fixedly connected with multiple slide rails, the upside of slide rail on the same straight line of two sides is slidably connected with drying rack, the upside of box is provided with wallboard storage mechanism for facilitating staff to put or take out finish paint board, the side of multiple drying racks is provided with paint surface drying mechanism for drying the paint surface of the both sides of wallboard, the below of drying chamber isolation plate is provided with fluid pushing mechanism for accelerating gas flow in the inside of box, drying rack driving mechanism, pipe network supply mechanism and paint surface drying mechanism cooperate with each other, can significantly improve the drying efficiency when device handles centralized finish paint drying task.

This invention provides a vacuum drying device for water-soluble inorganic salt carriers, relating to the field of water-soluble inorganic salt carrier drying technology. It includes a drying chamber and a drying drum. A vacuum pump is located at the back of the drying chamber, and a connecting pipe is fixedly installed on the top of the vacuum pump, with the output end of the connecting pipe connected to the interior of the drying chamber. A mounting frame is fixedly installed on the top of the drying drum. In this invention, the air inside the drying chamber is extracted by the vacuum pump and connecting pipe. Then, a controller activates two heating tube assemblies, which, with the assistance of temperature sensors, heat the interior to the required temperature. Next, the controller activates a drive motor, which drives a drive rod and multiple stirring blades to stir the material, ensuring uniform heating and moisture diffusion within the drying drum, thus ensuring thorough drying and improving the vacuum drying effect on water-soluble inorganic salt carriers.

The utility model discloses a multi-layer tea frame which comprises a frame body and two groups of supporting columns, and at least two supporting columns in each group are vertically fixed on the frame body. A plurality of drying plates arranged at equal intervals are arranged between the two sets of supporting columns. Supporting pieces are arranged on the opposite sides of the supporting columns and comprise angle plates and sliding blocks, limiting grooves are formed in the sliding blocks, and clamping blocks are arranged on the side walls of the drying plates and can be connected with the limiting grooves in a clamped mode. A T-shaped sliding groove is formed in the angle plate, and a T-shaped sliding block is arranged on the lower side of the sliding block and can slide in the T-shaped sliding groove. The T-shaped sliding blocks of the sliding blocks are gradually arranged towards one side from top to bottom, or the T-shaped sliding blocks of the vertically adjacent sliding blocks are symmetrically arranged, it is guaranteed that the multiple layers of drying plates can be staggered, air circulation is guaranteed, and the tea leaf drying efficiency is improved. A handle is fixedly arranged on the side, adjacent to the supporting column, of the drying plate, and the drying plate is convenient to operate and move.

The utility model relates to the technical field of board production, in particular to a drying device for artificial board production and processing. A driving structure is assembled in the middle of the drying frame, and overturning structures for overturning forwards and backwards during plate drying are symmetrically arranged along the middle of the driving structure; a conveying structure located on the inner side of the drying frame and used for conveying and moving the plates is assembled on the inner side of the overturning structure. According to the plate drying device, multiple faces are evenly dried, the front face and the back face of a plate can be fully dried through the overturning structure, the situation that one face is excessively dried, and the other face is not sufficiently dried is avoided, it is guaranteed that the whole plate is evenly dried, and the drying quality of the plate is improved; according to the plate drying device, plates can be dried in a relatively closed space, heat loss is reduced, the drying environment is more stable, and the drying quality can be improved.

This invention discloses a curing process for the upper tobacco leaves of Yunyan 87 based on the synergistic regulation of yellowing and color fixation. The yellowing period is divided into three stages: in the early stage, the temperature is increased at 0.8~1.2℃ / h to 36~38℃ (wet bulb 31~35℃), and the temperature is maintained for 10~14h until the high-temperature layer begins to yellow; in the middle stage, the temperature is increased at 0.8~1.2℃ / 3h to 39~41℃ (wet bulb 35~36℃), and the temperature is maintained for 18~22h until the high-temperature layer is completely yellow and collapses; in the late stage, the temperature is increased at 0.8~1.2℃ / 4h to 41~43℃, and the temperature is maintained for 18~22h. The color-fixing period is divided into three stages: in the early stage, the temperature is raised to 44~46℃ (wet bulb 34~35℃) and stabilized for 3~4 hours until the main vein of the high-temperature layer turns white; in the middle stage, the temperature is raised to 47~49℃ (wet bulb 35~36℃) and stabilized for 16~20 hours until the leaf veins of the low-temperature layer turn white and the leaves turn yellow; in the later stage, the temperature is raised to 53~55℃ (wet bulb 36~37℃) and stabilized for 18~20 hours until the leaf tissue of the low-temperature layer is completely dry. Compared with the existing curing process, this process moderately raises the temperature and humidity during the yellowing stage and moderately reduces the humidity and curing time during the color-fixing stage, so that the tobacco leaves turn yellow fully, promote the rapid degradation of starch and the transformation of aroma components, and avoid the phenomenon of green curing, lees curing and ash hanging on the upper tobacco leaves due to insufficient yellowing and color fixing.

The utility model discloses a gravel screening device for concrete processing, which relates to the technical field of concrete processing and comprises a screening frame and a detachable top cover, a gravel vibration screening mechanism is arranged on the screening frame, and a heating scattering type feeding mechanism is arranged on the detachable top cover. The gravel vibration screening mechanism comprises a vibration motor, three discharging hoppers and three screens, and the sizes of screen holes of the three screens are sequentially increased from left to right. The rotary driver drives the metal scattering device on the outer wall of the electric heating rod to rotate, so that some humid gravel raw materials can be fully dried through the heating and scattering effect of the metal scattering device, the condition that the raw materials are easily adhered to the surface of a follow-up screen due to high humidity to cause blockage is avoided, and the service life of the screen is prolonged. And some raw materials in a caking state can be fully scattered, and the situation that a subsequent screen is blocked due to caking of the raw materials is avoided, so that the sand and stone raw material screening efficiency is effectively improved.

The utility model discloses a binder processing and drying device capable of improving the high-temperature storage stability of lithium ion batteries, and relates to the technical field of battery binder drying, the binder processing and drying device comprises a drying barrel, the top of the drying barrel is communicated with a feeding pipe, the top of the feeding pipe is communicated with a feeding hopper, the top of the feeding hopper is connected with a storage pipe, and the top of the storage pipe is connected with a discharging pipe. A first breaking assembly, a second breaking assembly and a blocking assembly are sequentially arranged on the storage pipe from top to bottom, all adhesives are poured into the storage pipe and blocked through the blocking assembly, then the poured adhesives can be broken through rotation of the first breaking assembly and the second breaking assembly during pouring, the adhesives are blocked, and therefore the adhesives are prevented from being broken. According to the binder crushing device, the caking binder can be fully crushed, automatic discharging can be started without blocking after crushing is conducted for a period of time, then the caking binder can be crushed during feeding, and compared with the prior art, drying of the binder is more sufficient.

The application discloses a briquetting drying equipment, and belongs to the technical field of metallurgical mineral processing. The briquetting drying equipment comprises a drying component, and the drying component comprises a frame body and a plurality of evaporation plates. The frame body comprises a drying channel extending in a vertical direction, and a top opening of the drying channel is a drying feeding port. Each evaporation plate is fixed in the drying channel in a longitudinal direction, so as to form a plurality of drying intervals arranged at intervals in the drying channel. A through evaporation air duct is arranged in each evaporation plate in a transverse direction, and the two ends of the evaporation air duct penetrate through the side wall surface of the frame body, so as to guide hot air in a hot air pipeline. A plurality of drying holes are arranged on each evaporation plate and communicate with the drying intervals and the evaporation air duct, so as to blow the hot air in the hot air pipeline to the drying intervals. The briquetting drying equipment provided by the application can realize efficient drying of briquettes, fully remove water on the briquettes, and then reduce the adhesion of powder on the briquettes, so that the powder rate entering a furnace is greatly reduced.

The invention belongs to the technical field of optical communication, and particularly discloses a preparation method of an ultra-low attenuation optical fiber and the ultra-low attenuation optical fiber, and the preparation method comprises the steps: S1, preparing a fluorine-doped sleeve with non-uniform fluorine distribution through employing an external vapor deposition technology; s2, stretching and corroding the fluorine-doped sleeve to obtain an inner cladding with a predetermined aperture; s3, SiO2 is deposited in the inner cladding layer by using an in-tube vapor deposition process, alkali metal doping is performed to form a core layer, the inner cladding layer with the core layer is melted and shrunk into a rod shape, and a rod-shaped structure is obtained; s4, preparing an outer cladding layer outside the rod-shaped structure through an external vapor deposition process, drying the rod-shaped structure with the outer cladding layer, and solidifying in a fluorine-containing atmosphere to obtain an optical fiber preform; and S5, drawing the optical fiber preform to form the optical fiber. According to the preparation method, external chemical vapor deposition and in-tube vapor deposition are utilized to achieve better optical fiber profile matching and viscosity matching.

The utility model relates to the field of welding electrode baking, in particular to a welding electrode baking oven which comprises a shell and is characterized in that three hinges are fixedly installed at corners of the front face and the side face of the shell, the front face of the shell is rotatably connected with an oven door, the outer side of the oven door is fixedly connected with a control panel, and the side wall of the left side of the shell is slidably connected with a side plate. A handle is fixedly connected to the center of the side plate, a rotating device is arranged in the shell and comprises a disc, a fixing column is fixedly connected to the left end of the disc, a motor is arranged on the left side of the fixing column, and gears are fixedly connected to the left end of the fixing column and the output end of the motor; the two gears are in meshed connection, and four baking devices are rotationally connected to the right side of the disc. According to the welding electrode drying oven, welding electrodes can be heated more evenly through the rotating device, the drawer is further arranged on the left side, an electric welding head can be preheated, and therefore the whole structure is used in a matched mode, and the device is more convenient, fast and efficient.

The utility model belongs to the technical field of molecular sieve processing, particularly relates to an anhydrous cooperative processing device, and provides the following scheme aiming at the problems of non-uniform dispersion and too fast blanking in the background technology: the anhydrous cooperative processing device comprises a baking section furnace stainless steel pipe, and a blanking hopper for guiding a molecular sieve to be blanked is arranged on the outer wall of the top of the baking section furnace stainless steel pipe; a spiral discharging assembly and a molecular sieve dispersing assembly are arranged in the baking section furnace stainless steel pipe, and the spiral discharging assembly is located above the molecular sieve dispersing assembly. Through the synergistic effect of the spiral discharging assembly and the molecular sieve dispersing assembly, the discharging time is prolonged, molecular sieves can be fully dried, and then the molecular sieves are uniformly dispersed through the guide plate of the conical dispersing disc and are prevented from being stacked. The blanking speed of the molecular sieve is slowed down through the cooperation of the striker plate and the feed port, the retention time of the molecular sieve in the stainless steel pipe of the baking section furnace is further prolonged, and the overall thermal insulation performance is improved and the energy consumption is reduced by combining the directional airflow control of the breather pipe.

The utility model discloses a kind of equipment for ruthenium trichloride drying, belong to ruthenium trichloride processing equipment technical field. Including sandwich kettle body, temperature control heater, nitrogen purging unit, cryogenic trapping unit and discharge unit, the kettle cover is provided at the top of the sandwich kettle body, and the inside of the sandwich kettle body is rotationally provided with dispersion paddle;The dispersion paddle is connected with the stirring motor of kettle cover top;The bottom of the sandwich kettle body is provided with gate valve;Temperature control heater is set in the sandwich inside of sandwich kettle body;Nitrogen purging pipeline is installed on the inside upper portion of the inner bag of the sandwich kettle body;The nitrogen purging pipeline is connected to nitrogen pressure gas source;The cryogenic trapping unit includes the exhaust pipe connected with the inside upper portion of the inner bag of sandwich kettle body, and the exhaust pipe is connected to exhaust pump;The equipment for ruthenium trichloride drying of the utility model can ensure the drying quality of ruthenium trichloride, and can avoid material loss and cause surrounding environmental pollution.