99results about "Grains drying" patented technology

A surround hot air slow drying device and a three-stage baking method for pet food processing are provided. The surround hot air slow drying device for pet food processing includes a drying box. A hot air drying unit is provided at an inner bottom of the drying box, a circulating conveying unit is provided inside the drying box, a plurality of drying frames are evenly distributed on the circulating conveying unit, a material turning mechanism is provided inside the drying frames, and a positioning component is provided inside the drying box. The material turning mechanism cooperates with the positioning component to turn the raw materials in the drying frames.

A system configured to collect a representative sample of dried grain from an industrial grain dryer to inform the dryer's automatic temperature controller includes: a plurality of drop tubes each having a top end and a bottom end, wherein the top end of each drop tube is communicatively coupled to a respective dump chute of the grain dryer and configured to receive a respective partial grain sample from the dump chute; connective tubing communicatively coupling the bottom ends of the plurality of drop tubes; an air blower communicatively coupled to a proximal end of the connective tubing, wherein the air blower is configured to propel the partial grain samples distally through the connective tubing; and a collection box communicatively coupled to a distal end of the connective tubing, wherein the collection box is configured to receive and aggregate the partial grain samples into a combined sample for moisture testing.

The embodiment of the present application provides a temperature adjusting method, a temperature adjusting system, a dryer and a controller for multiple dryers. Each dryer comprises a temperature adjusting mechanism, each temperature adjusting mechanism comprises a hot air door, the multiple dryers use a same heat source, and the temperature adjusting method comprises the following steps: determining a target drying temperature interval of a to-be-dried object in each dryer; in the process of starting the heat source to supply heat to the multiple dryers, acquiring the inlet temperature and the current drying temperature of the hot air door of each dryer in real time, so as to control the temperature adjusting mechanism to adjust the opening degree of the hot air door of each dryer, so that the current drying temperature is in the target drying temperature interval. The hot air is generated by the heat source, and the drying temperature required, the temperature after heat energy loss and the current drying temperature are used to realize accurate temperature control for each dryer. Therefore, heat energy is fully utilized, and the temperature adjusting method of one heat source corresponding to multiple dryers is realized.

The invention relates to the technical field of drying processing, in particular to an automatic drying device and method for grain processing, and the automatic drying device comprises a base, a roller, an adjusting unit and a hot air unit. According to the grain drying machine, the length of a material curtain raised by grains in the accumulation area is reduced by means of the adjusting unit, namely, the uniformity of the raised grains is reduced, the material curtain formed when the second raising plate raises the grains in the middle drying area is uniform and is in the maximum length, the grains are uniformly dispersed and dried, and the drying efficiency is improved. Therefore, the problem that grains are overheated due to the fact that the grains are excessively raised close to a hot air area is avoided, and internal and external common drying is formed through a hot air cylinder, an air outlet sleeve and an auxiliary heating ring in the hot air unit. Meanwhile, in the middle drying area, it is ensured that hot air still has heat needed for drying after flowing from right to left by means of heat transferred into the auxiliary heating ring after the roller is heated, and the drying effect of the middle drying area (away from a large amount of hot air outlet area) on the grains is improved.

The invention relates to a rice husking machine which comprises a rice husking bin and a drying system. The drying system comprises an air duct structure, a fan and a drying adsorption part. An airflow channel is arranged in the air duct structure and provided with an air inlet end and an air outlet end which are spaced from each other. The fan communicates with the airflow channel and is configured to drive airflow to flow from the air inlet end to the air outlet end. The drying adsorption part is arranged in the airflow channel. The air duct structure has a drying state and a regeneration state which can be switched mutually. In the dry state, the air inlet end and the air outlet end are both communicated with the rice milling bin. In the regeneration state, the air outlet end is communicated with the outside of the rice mill. According to the rice husking machine, under the dry state, the fan can drive the airflow to circulate in the rice husking bin, so that the humidity in the rice husking bin is reduced. In the regeneration state, the fan can drive the airflow to be blown out of the rice milling machine to form external circulation, so that moisture adsorbed by the drying adsorption part is discharged out of the rice milling bin, regeneration of the drying adsorption part is achieved, and frequent replacement by a user is not needed.

In some embodiments, a grain drying apparatus may include a drum with a grain auger including a flighting with air holes. The drum may be surrounded by an outer drum, the inner drum including a plurality of drum air holes. A volume of dehydrated air may pass around a helical air diverter, located in an annulus between the inner drum and the outer drum, and through the grain, thereby drying the grain.

This invention discloses a gradient dehydration type grain dryer, relating to the field of grain drying technology. It includes a drying shell with a hot air pipe fixedly connected to its side wall. A dehydration device is installed inside the drying shell. The dehydration device includes a central shaft and dehydration components. The central shaft includes a sleeve and a movable shaft that are slidably connected. Both ends of the sleeve are fixedly connected to the inner side wall of the drying shell. The dehydration components include a grain tray and a top cover fixedly connected to each other. The grain tray is bowl-shaped. A connecting shaft is fixedly connected to the outer side wall of the movable shaft. A fixing ring is fixedly connected to the other end of the connecting shaft. A limit plug is fixedly connected to the side of the fixing ring facing the corresponding grain tray. The limit plug blocks or separates the hole in the middle of the grain tray, thus blocking or discharging the grain on the inner side wall of the grain tray, preventing the grain from remaining in the grain tray for too long. This solves the technical problem of heavy grain accumulating in the drying hopper and affecting the drying effect.

The invention discloses grain drying and dust removing integrated equipment which comprises a drying and dust removing box, a feeding pipe is arranged at the position of a center shaft in the drying and dust removing box, the grain drying and dust removing integrated equipment further comprises a feeding mechanism, and the feeding mechanism is used for conveying grain at the bottom in the drying and dust removing box to the top in the drying and dust removing box along the feeding pipe. A spiral guide plate is arranged between the outer wall of the feeding pipe and the inner wall of the drying dust removal box, grain conveyed to the top in the drying dust removal box can fall onto the spiral guide plate and spirally flow from top to bottom along the spiral guide plate, the lower end of the side wall of the spiral guide plate communicates with a hot air supply device, and the hot air supply device is used for providing hot air for the interior of the drying dust removal box. Due to the fact that the grains are in a dispersed state in the process of spirally flowing from top to bottom along the spiral guide plate, and meanwhile, the flowing path of the grains in the drying dust removal box is long, and the retention time of the grains in the drying dust removal box is long, the drying dust removal efficiency of the grains is high, and meanwhile the drying dust removal effect is good.

The invention discloses a batch type grain drying machine for grain suspension drying through airflow expansion, and relates to the technical field, the batch type grain drying machine comprises a drying tower and a heating and drying section, the heating and drying section is located in the drying tower, and air inlet angular boxes and air outlet angular boxes are sequentially distributed in the heating and drying section from top to bottom in an array staggered mode; hot air assemblies communicating with the air inlet angular boxes and exhaust assemblies communicating with the air outlet angular boxes are installed on the two sides of the drying tower correspondingly, the turbulent flow ventilation assemblies are elastically installed on the two sides of the inner wall of the heating and drying section, and the turbulent flow ventilation assemblies and the air inlet angular boxes on the edges are matched to form side edge discharging channels; the drying tower is provided with a plurality of exhaust grooves sealed by the turbulent flow ventilation assembly. The air inlet angular boxes and the air outlet angular boxes which are distributed in a staggered mode are arranged for feeding and discharging air flow and dispersing falling grains, the mixed flowing air flow enables the grains to be evenly dried, when the falling grains are large in quantity, the air exhaust grooves are forced to be opened, and the drying efficiency during synchronous drying of a large number of grains is improved.

Disclosed in the present application are a surrounding hot air slow-drying apparatus for pet food processing and a three-stage baking method. The surrounding hot air slow-drying apparatus for pet food processing comprises a drying oven (1), wherein a hot air drying unit is mounted at the inner bottom of the drying oven (1), a circulating conveying unit (2) is mounted in the drying oven (1), a plurality of drying frames (3) are uniformly distributed on the circulating conveying unit (2), material turning mechanisms are respectively provided in the drying frames (3), a positioning assembly (7) is mounted in the drying oven (1), and the material turning mechanisms cooperate with the positioning assembly (7) to turn over raw materials in the drying frames (3). By means of material turning plates (501) moving in the drying frames (3), food particles on the drying frames (3) are turned over; at the same time, arc-shaped plates (503) cooperate with second fixing plates (504) to scatter the food particles in an S-shaped path, avoiding damage to the food particles and realizing the replacement of the surfaces of the food particles in contact with hot air, and thus improving the yield of qualified pet food and improving a drying effect. By means of a three-stage baking process, the starch gelatinization degree of baked pet food can be increased to 90% or more, which is conducive to digestion and absorption.

The invention relates to a process and apparatus for ultrasonic assisted drying of materials, in particular, but not exclusively, for the low temperature drying of materials that are heat sensitive. In particular, there is provided an apparatus for dehydration of water containing material comprising: an ultrasound emitter; an ultrasound transmission platform that directly or indirectly supports said material; a fluid retained between said emitter and said platform, through which ultrasound energy is transferred; and a gas stream device that directs drying gas to said material. There is also provided a method of dehydration of water containing material comprising locating the material either directly or indirectly on an ultrasound transmission platform of a dehydration apparatus that comprises: an ultrasound emitter; a fluid retained between said emitter and said platform, through which ultrasound energy is transferred; and a gas stream device that directs drying gas to said material; and exposing said material to ultrasound energy and drying gas flow for a time and under conditions suitable to achieve desired extent of dehydration of said material. In another aspect there is provided a material that has been dehydrated using the method or apparatus described above.

The present application relates to the technical field of dry processing, in particular to a kind of grain processing automatic drying device and method, including base, roller, adjusting unit and hot air unit.In the present application, the length of the grain is reduced in the accumulation area by the adjusting unit, which reduces the uniformity of the grain after being lifted, and the curtain formed by the second lifting plate in the middle drying area is uniform and at the maximum length, the grain is evenly dispersed for drying operation, thereby avoiding the problem of overheating of the grain caused by excessive lifting near the hot air area, and the inner and outer drying is formed by the hot air cylinder, air outlet sleeve and auxiliary heating ring in the hot air unit, and the heat transferred to the auxiliary heating ring after the roller is heated in the middle drying area ensures that the hot air still has the required heat for drying after flowing from right to left, improving the drying effect of the middle drying area (far from the hot air outlet area).

The invention relates to the technical field of drying, and particularly discloses a raw material particle drying device which comprises a frame body, an outer barrel body, a material gathering bin, a heating assembly, a transferring assembly and a drying assembly, the outer barrel body is arranged on the frame body, the material gathering bin is arranged at the bottom of the outer barrel body, and the drying assembly comprises a first driving part, a rotating ring, an inner barrel body, a rotating barrel and a first spiral plate. A supporting ring is arranged at the top end of the material gathering bin, the rotating ring is rotationally matched with the supporting ring, the inner barrel is arranged in the outer barrel, a first ring cavity is formed between the inner barrel and the outer barrel, a gap is formed between the inner barrel and the upper surface of the rotating ring, the rotating barrel is arranged on the rotating ring, and a second ring cavity is formed between the rotating barrel and the inner barrel. The first spiral plate is arranged in the second annular cavity and connected with the rotating cylinder, the heating assembly is located in the rotating cylinder, and a third annular cavity is formed between the rotating cylinder and the heating assembly; according to the raw material particle drying device, the drying time of materials in the outer barrel can be prolonged, and therefore the drying efficiency is improved.

A locking device for preventing freewheeling of an aeration fan rotor. The locking device comprises an elongated body having a predetermined length. The elongated body is adapted for being disposed through an opening of a fan housing containing the aeration fan rotor therein such that in a first position a first end portion of the elongated body is enabled to interact with the aeration fan rotor for preventing freewheeling of the aeration fan rotor and a second opposite end portion of the elongated body is placed outside the fan housing. The locking device further comprises means for holding the elongated body in the first position and a second position such that in the second position the first end portion of the elongated body is prevented from interacting with the aeration fan rotor.

The invention relates to the technical field of grain drying, in particular to agricultural product grain rapid drying equipment and method.The agricultural product grain rapid drying equipment comprises a multi-layer tower body, a hot air system used for drying grains in the tower body is assembled on the surface of the tower body, a multi-layer drying chamber is assembled in each layer of tower body, and a plurality of sets of angular pipes are assembled in each drying chamber; the lower end of the drying chamber is provided with a detection assembly used for detecting the grain moisture value in the drying chamber. By arranging the sampling outer pipe, the sealing half pipe and the protection pipe, the detection probe is located in the sampling outer pipe and the sealing half pipe in a non-detection state to prevent the high temperature from influencing the service life and the detection accuracy, and the detection probe is located in the protection pipe in a material taking state to prevent the high temperature from influencing the service life and the detection accuracy; grain enters the sampling outer pipe and the sealing half pipe to be subjected to static detection, the moisture value detection accuracy of the grain is guaranteed, and then the device is matched with a hot air system to guarantee a better drying effect.

The application discloses a gear height and low adjustment device, which comprises a casing and a height adjustment frame, one end of the casing is provided with a servo motor, the inside of the servo motor output end casing is connected with an eccentric shaft, the eccentric shaft is connected with a planetary gear assembly through a rotating shaft, and the planetary gear assembly is connected with a movable rod through a rotating shaft. The device optimizes its own structure by being provided with a pressure sensing seat and the like, the height adjustment frame is welded with a pressure sensing seat at one end, a buzzer is mounted on the outer side wall of the pressure sensing seat, the pressure sensing seat provided with a pressure sensor can intelligently monitor the stress condition of the external arm, and the monitored data is sent to an external control device, when the stress value exceeds a preset safety value, the buzzer will give an alarm to remind the user to reduce the amount of grain to be dried, so as to avoid the device from being broken and damaged, and the safety performance of the device is improved.

The invention relates to a microwave heating mixing device, and belongs to the technical field of drying equipment. Comprising a base and a material mixing assembly, and a supporting frame is arranged between the material mixing assembly and the base for supporting; a fixing pipe is arranged on the supporting frame, and the material mixing assembly performs circumferential rotation by arranging a driving assembly; the material mixing assembly comprises a microwave mixing bin and a feeding port, a material control assembly matched with the feeding port is arranged on the material mixing assembly, and the material control assembly blocks the feeding port; a microwave device generating assembly for performing microwave heating on the interior of the material mixing assembly is arranged on the supporting frame, and a wave-transparent window matched with the microwave device generating assembly is arranged on the microwave mixing bin. According to the microwave heating and mixing device provided by the invention, the mixing assembly is driven by the motor to rotate forwards and backwards, so that grains are uniformly heated, and local overheating is avoided. By adopting the design of the flexible bin and the flow guide edges, grain damage is reduced, and the physical state is kept complete. A temperature sensor is arranged to monitor and control the heating temperature in real time, so that the grain quality is ensured.

The invention relates to the technical field of grain processing, in particular to a grain processing and cleaning device which comprises a machine body, a frame fixedly mounted at the top end of the machine body and a waste water collecting box fixedly mounted at the bottom end of the machine body and used for collecting waste water, a screen plate used for screening is arranged on the inner side of the frame, and a mounting frame is welded to the upper surface of the frame. A cleaning mechanism for cleaning the sieve plate is arranged on the mounting frame, and a driving mechanism which vibrates the sieve plate and is matched with the cleaning mechanism for use is arranged on the frame body; the driving mechanism is composed of a first motor. Grain is screened through the sieve plate in a back-and-forth moving mode, cleaning is conducted through the brush plate abutting against the sieve plate while the sieve plate moves back and forth, collection is conducted through the draught fan, impurity splashing is reduced while the sieve plate is cleaned, the grain processing environment is improved, and therefore the sieve plate can be cleaned on the premise that the machine is not stopped; the filtering efficiency of the sieve plate is greatly improved.

The invention relates to a drying quantity detection device of a grain dryer, which is used for solving the technical problem that a weighing sensor is easily influenced by high temperature to influence measurement and damage the sensor. Three lever mechanisms are evenly distributed on each stock bin in the circumferential direction, each lever mechanism comprises a lever and a supporting base, the middle of each lever is hinged to the corresponding supporting base, the lower end of each supporting base is fixed relative to the fixed rack, the levers are arranged in the radial direction of the corresponding stock bins, and the front ends of the levers extend to the positions below the corresponding stock bins so that the lower ends of the stock bins can press the front ends of the levers. The rear end of the lever extends in the direction away from the stock bin. The weighing sensors and the levers are arranged in a one-to-one correspondence mode, the lower ends of the weighing sensors abut against the upper portions of the rear ends of the levers in a matched mode, and the upper ends of the weighing sensors are installed on a fixed rack. When the levers are in the horizontal state, the lower end of the stock bin and the lower ends of the weighing sensors make contact with the levers respectively, and force is transmitted to the three corresponding weighing sensors through the three corresponding levers so that the grain weight can be calculated.

The invention discloses a graphene infrared static grain drying machine, and relates to the technical field of grain processing. Comprising a conveying supporting frame, a turning support is fixedly connected to the upper portion of the conveying supporting frame, a turning driving assembly and an air pump are fixedly connected to the upper end of the turning support, a first turning assembly and a second turning assembly are fixedly connected to the movable ends of the two sides of the turning driving assembly respectively, and an air supply pipe is fixedly connected to the air outlet end of the air pump; the other end of the air supply pipe is fixedly connected to the first overturning assembly and the second overturning assembly. The first overturning assembly and the second overturning assembly internally comprise overturning plates, triangular bosses and air blowing grooves. Two groups of symmetrically mounted swing rods drive a first turning assembly and a second turning assembly to reciprocate in opposite directions, a hollow structure in a turning plate is matched with an air pump to supply air, grains are pushed through airflow during movement, then physical turning is performed through a triangular boss, double-sided uniform heating of the grains is realized, mechanical contact damage to the grains is reduced, and the grain drying efficiency is improved. And meanwhile, the grains are fully overturned.

The application provides a grain intelligent drying method and device based on a microwave heat pump, and belongs to the field of grain drying.The method comprises the following steps: obtaining the initial moisture content and bulk density of a drying material; determining the current material type of the drying material according to the corresponding relationship between different material types, different moisture contents and bulk densities, which is established in advance; selecting a target drying model corresponding to the current material type and the initial moisture content from a plurality of target drying models stored in advance; and drying the drying material according to the target drying model, wherein the target drying model comprises a target microwave power and a target hot air temperature matched with the current material type and the initial moisture content; and the target drying model is obtained by screening according to the broken rice rate and the whole milled rice rate from a plurality of candidate drying models with different microwave powers and different hot air temperatures.The method avoids the problems of long drying time and low efficiency in multiple drying, the drying process is controllable, and the best broken rice rate and whole milled rice rate are ensured.

The invention discloses a drum type corn kernel rapid dehydration device which comprises a first support, a second support, a drum, a first motor and a second motor, the first support is arranged at one end of the drum in a supporting mode, the second support is arranged at the other end of the drum in a supporting mode, and the first motor is arranged on the first support and is in transmission connection with the drum. The second motor is arranged on the second support and is in transmission connection with the rotary drum, a plurality of heating plates are arranged on the inner wall of the rotary drum at intervals in the axial direction, a supporting disc is arranged on the first support, one end of the rotary drum is in sliding connection with the supporting disc, and a first conducting ring and a second conducting ring are further arranged in the supporting disc. The resistance plate is in sliding connection with the first conducting ring and the second conducting ring through the first conducting column and the second conducting column respectively. The first motor and the second motor drive the rotary drum to turn over and swing, and the interior of the rotary drum is heated through the electric heating plate, so that corn kernels can be uniformly heated and dried, the drying time is effectively shortened, and the drying and dewatering efficiency of the corn kernels is improved.

An improved mixed flow grain dryer is presented having a grain column with upper, middle and lower drying sections. The system includes a set of plenums and ducts configured to move air through the middle and lower drying sections at one or more lower temperatures, recover the air moved through the middle and lower drying sections, and move the recovered air through the upper drying section at a higher temperature. The system is configured to move grain through the upper drying section, then through the middle drying section, then through the lower drying section, while also: moving air of one or more lower temperatures through lower drying section and middle drying section, combining air moved through lower drying section and middle drying section, and moving the combined air through the upper drying section at a higher temperature.

The invention is applicable to the technical field of agricultural product processing, and provides cleaning and drying equipment for agricultural product processing, which comprises a connecting frame, and a pretreatment mechanism is arranged on the outer side of the connecting frame; the pretreatment mechanism comprises a motor, a transmission plate, a transmission wheel, a transmission belt, a transmission rod, a fixed plate, a sleeve, a connecting piece, a fixed rod, a first magnet, a second magnet, a buffer plate, a reset spring, a closing plate and a connecting rod; according to the agricultural product screening device, primary cleaning is conducted on materials entering the feeding hopper through the adjustable screen, the agricultural product screening device can adapt to agricultural products with different particle sizes, and large-particle impurities are effectively screened out; the winnower is matched with the conveying pipeline to evenly feed the materials into the pipeline, hot air drying of the hot air blower and air suction cleaning of the impurity suction fan are combined, secondary hot air cleaning is achieved, the impurity separation efficiency is improved, the materials are dried in advance through hot air, loads are relieved for follow-up drying, impurities are prevented from being mixed, and the drying quality is prevented from being affected. And the synergistic effect of cleaning and pre-drying is obviously optimized.

The invention relates to a grain dryer. Comprising a drying cylinder, a center cylinder and a spiral discharging plate, a hot air generating device blows hot air to the drying cylinder in the direction from left to right, first air holes are evenly distributed in the cylinder wall of the drying cylinder, the center cylinder and the drying cylinder are coaxial, second air holes are evenly distributed in the cylinder wall of the center cylinder, and the spiral discharging plate is arranged in an annular space between the drying cylinder and the center cylinder. Third air holes are formed in the spiral discharging plate, the spiral discharging plate comprises multiple circles of discharging plate units, the vertical projection of each circle of discharging plate unit is a circular ring, each circle of discharging plate unit comprises a left half ring and a right half ring which are connected through a flexible metal plate, and the right half rings are fixedly connected with the drying cylinder and the center cylinder correspondingly; the left half ring is in sliding fit with the drying cylinder and the center cylinder, a supporting part is arranged on the inner wall of the left side of the drying cylinder and matched with the lower surface of the left half ring in an abutting mode through an elastic buffering column, a vibration exciter is further installed on the lower surface of the left half ring, and the lead angle of the right half ring is larger than that of the left half ring.

One or more embodiments of the present specification provide a grain double-heat-exchange dryer, comprising: a chassis on which a drying part is arranged; the drying part is composed of a transverse flow drying area and a mixed flow drying area, a plurality of groups of pentagonal air plates which are arranged in a staggered manner are arranged in the mixed flow drying area, inclined through holes are uniformly formed in the pentagonal air plates, openings are formed in the lower parts of the pentagonal air plates, and air inlet holes are correspondingly formed in the mixed flow drying area at the two ends of the pentagonal air plates; when in use, the grains enter the mixed-flow drying area and then pass through the through holes formed in the five-side air plates, the contact efficiency of the grains and hot air in the mixed-flow drying area is increased in the mixed-flow state in work under the action of a certain temperature, and the drying efficiency is also increased in the mixed-flow state, so that the water vapor transpiration effect is greatly improved; and the drying efficiency is improved when the grains enter the crosswind drying area, impurities in the grains are conveniently discharged, and the quality of the dried grains is improved.

This invention relates to the field of conveying devices for dryers, specifically a conveying device and method for a grain dryer. The invention includes a lower conveying platform, a lower conveying hopper at the top of the platform, a metering hopper at the bottom of the hopper, a rotatable feed wheel connected inside the metering hopper, an arc-shaped feed trough at one end of the feed wheel, a moisture sensor fixedly connected to the bottom of the arc-shaped feed trough, a discharge port at the bottom of the metering hopper, and a cooling trough and a circulating trough at the bottom of the discharge port. A guide plate is hinged inside the metering hopper and installed between the cooling trough and the circulating trough. This invention uses a moisture sensor to monitor the moisture content of the grain in real time, and in conjunction with a drive and transmission assembly, ensures that the grain is effectively separated based on its moisture content as it passes through the lower conveying hopper into the cooling trough or the circulating trough.

The application discloses a grain drying section with variable air flow, a drying device and a working method, and solves the problem that the air flow mode in the grain drying section in the prior art is fixed and cannot be adjusted, and has the beneficial effect that the air flow mode of the drying section can be adjusted, and the specific scheme is as follows: a grain drying section with variable air flow, which comprises a support frame, at least two layers of drying angle boxes are supported in the support frame, both ends of the drying angle boxes are communicated with the outside through the support frame, the part of the drying angle boxes in the support frame is provided with a ventilation opening, a wind adjusting component is supported on the outer side of the support frame at the position where the drying angle box is communicated with the outside, the wind adjusting component is located on the air inlet side and the air outlet side of the drying angle box, the wind adjusting component is movable relative to the support frame, the wind adjusting component is provided with at least two layers of communication openings, and in the process that the wind adjusting component moves relative to the support frame, the communication openings of one layer can be communicated with the drying angle box, so that the flow path of the hot air entering the support frame is changed.