TWI670108B - Dry sprayer structure - Google Patents

Abstract

This case is a drying sprayer structure, which includes an outer shell and an inner shell, and there is a gap between the outer shell and the inner shell, a side of the outer shell is connected to a hot air supply device and communicates with the gap, the An air outlet is provided in the inner casing, and at least one feeding device and a first outlet and a second outlet are provided in the inner casing. After the hot air supply device is activated, the hot air supply device generates hot air into the gap, And increase the temperature of the barrel wall of the inner shell, and then the hot air is blown out from the air outlet, at this time, the temperature of the barrel wall will be greater than the temperature of the hot air transmitted from the air outlet to the barrel, so that the feeding device ejects After the flow material, if the flow material contacts the barrel wall, it will quickly generate steam to push the flow material away from the barrel wall without sticking. When the moisture of the flow material evaporates, its coarser powder will come from the second outlet When discharged, the finer powder will be discharged from the first outlet along with the internal gas.

Description

Dry sprayer structure

The present invention relates to a structure of a dry sprayer, which is invented for the internal structure of the dry sprayer.

The dry sprayer is used to evaporate the water of thick or concentrated liquid to obtain dry powder. The principle is to use the hot air supply device to heat and purify the outside air and pump it to the inside of the dry sprayer, and then the liquid or Thick viscous liquid is sprayed into the drying sprayer by high pressure nozzle (or centrifugal atomization device) in the form of atomization or extremely small droplets. At this time, the atomized or extremely small droplets are generated by the hot air supply device The hot air is combined with each other. The hot air makes the moisture of these liquids evaporate. The liquids will quickly dry and form a spherical solid powder in the hot air, and then the coarser solid powder after rapid drying will be discharged from the outlet, and the finer solid powder will The air in the drying sprayer is pumped to the outside together, and the next stage of the process is performed.

The structure of a general drying sprayer includes a feed system, a spray system, a gas supply system and a product transportation system. The feed system is connected to the spray system. After the gas supply system supplies hot air to the drying sprayer, the feed system will spray The feed liquid is transported to the sprayer of the spray system through the high-pressure pump, and then the sprayer is sprayed out and then combined with the hot air in the drying sprayer to evaporate moisture to form a solid powder, which is then dried by the blower of the product transportation system The air and solid powder in the sprayer are extracted, and the particle size of the solid powder is screened by the cyclone separator. The powder after the final screening is discharged by the rotary valve below the cyclone separator, and the finished powder is obtained. The above-mentioned drying sprayer is an important machine in today's industry. Its advantage is that it has a short drying time, which allows the drying of highly heat-sensitive substances, and the liquid can be quickly dried by designing and controlling the drying conditions. The operation of the spray liquid can be automatically controlled and rotary sprayed, etc., and the dry spray can be dried in a single step from a liquid, slurry or thin paste into the drying sprayer by spraying, which can obtain a solid powder And, the drying sprayer can be combined with other functions of evaporator, crystallizer, pulverizer and granulator to simplify its manufacturing process, so the drying sprayer has become an important drying system in the chemical industry.

However, in the process of evaporating the liquid to form a solid powder, the dry sprayer often sticks a lot of solid powder on the inner wall of the sprayer. Generally, if the liquid is milk, the solid powder formed by milk evaporation is less likely to stick to the wall. However, if the clay or sugar-containing liquid evaporates, it will easily stick to the wall of the barrel in the dry sprayer, because when the spray system sprays the liquid into the dry sprayer and the hot air supply device also sends the hot air to In the drying sprayer, the temperature of the barrel wall in the drying sprayer will be lower than the temperature of the internal air. When the liquid touches the barrel wall in the drying sprayer, it will stick to the barrel wall and cause the liquid to evaporate. The powder cannot be discharged together with the internal air, and it still sticks to the wall of the barrel. When the sticking is too much, it will fall into a hard block instead of powder. It will affect the quality, and if the wall of the barrel in the general drying sprayer is carried out When the surface is polished, when the liquid touches the surface, it is easier to stick the evaporated solid powder to the surface, which affects the powder production efficiency of the dry sprayer.

In summary, there are many imperfect structures in the structure of the conventional dry sprayer. Therefore, the inventor has invented a dry sprayer structure through long-term research and development, which is to set the dry sprayer to an outer shell And an inner shell, so that there is a gap between the outer shell and the inner shell. When the hot air supply device sends hot air from the outside to the drying sprayer, the hot air will first enter the gap and increase the temperature of the inner shell Then, the hot air enters the inner casing to combine with the liquid and evaporate the liquid. When the liquid touches the barrel wall, the temperature of the barrel wall is higher than the temperature of the internal air, so a thin film of water vapor is generated between the liquid and the barrel wall. After the water of the liquid evaporates, the powder will not stick to the wall of the barrel, thereby increasing the efficiency of the sprayer.

The main object of the present invention is to provide a drying sprayer structure, which adds a gap in the shell of the drying sprayer and communicates with a hot air device, the gap is provided with an air outlet, and the air outlet is connected to the drying sprayer Inside the casing, and a feeding device, a first outlet and a second outlet are provided in the casing. After the hot air device generates a hot air into the gap, the hot air will be discharged into the drying sprayer from the air outlet In the casing, at this time, the temperature of the side wall inside the structure of the drying sprayer is greater than the temperature of the hot air. When the feed device sprays the first-class material, the flow material and the side wall will quickly generate water vapor, and the flow material Push away from the side wall so that the flow material will not adhere to the side wall. After the moisture of the flow material evaporates, its coarser powder will be discharged from the first outlet, and its finer powder will be discharged from the flow along with the air inside. The second outlet is discharged.

Another object of the present invention is to provide a plurality of feeding devices arranged in the housing and below the air outlet, so that the feeding device sprays a fluid from bottom to top, the fluid will be Falling down, so that the time for the water to evaporate one by one will be twice as long as the time for heat dissipation compared to setting the feeding device above the casing.

In order to achieve the above object, the present invention discloses a dry sprayer structure, which includes a body including an outer shell and an inner shell, the outer shell covers the inner shell, and the outer shell and the inner shell There is a gap between the bodies, the outer shell is further provided with an air inlet and the inner shell is further provided with an air outlet, the air inlet is provided on the outer body and communicates with the gap, and the air outlet is provided in The inner casing communicates with the gap, and a feed inlet and a first outlet are further provided. The feed inlet is provided on the inner casing, the first outlet is located in the inner casing, and the first outlet The opening is facing down, and a hot air device is connected to the air inlet and generates a hot air.

In an embodiment of the invention, it is also disclosed that the feed port is provided on the outer shell.

In one embodiment of the present invention, it is also disclosed that the feed inlet is provided in the inner casing and is disposed above the air outlet.

In an embodiment of the present invention, it is also disclosed that the drying sprayer structure is further provided with a feeding device, which is disposed on the outer casing and communicates with the feeding port.

In an embodiment of the present invention, it is also disclosed that it further includes a liquid, which is contained in the feeding device, and the liquid is transferred to the feeding port by the feeding device, wherein the temperature of the liquid Below the temperature of the hot air.

In one embodiment of the present invention, it is also disclosed that the feeding device is connected to a rotating spray device, and the rotating spray device is disposed in the casing and communicates with the feeding port.

In an embodiment of the invention, it is also disclosed that the rotary spray device includes a spray head and a motor, the spray head is connected to the motor, so that the motor drives the spray head to rotate, and the liquid is sprayed by the spray head.

In one embodiment of the present invention, it is also disclosed that the drying sprayer structure is further provided with a feeding device, which is connected to the first outlet.

In an embodiment of the invention, it is also disclosed that the hot air device is further connected to a filtering device.

In an embodiment of the invention, it is also disclosed that the hot air device further includes a heater.

In an embodiment of the invention, it is also disclosed that the first outlet is located below the feed inlet.

In order to make your reviewer have a better understanding and understanding of the features of the present invention and the achieved effects, the preferred embodiments and detailed descriptions are accompanied by the following explanations:

The present invention is invented in accordance with the structure of the drying sprayer of the conventional technology. A lot of solid powder often adheres to the inner barrel wall of the drying sprayer. This is because when the spraying system sprays the liquid into the drying sprayer and the hot air supply device also The hot air is sent to the drying sprayer. At this time, the temperature of the barrel wall in the drying sprayer will be lower than the temperature of the internal air. When the liquid touches the barrel wall in the drying sprayer, it will stick to the barrel wall. The powder caused by the evaporation of the liquid cannot be discharged together with the air inside, and it still sticks to the wall of the barrel, and if the surface of the barrel wall of the general drying sprayer is polished, it is easier when the liquid touches the surface The solid powder after evaporation sticks to the surface, which affects the efficiency of the dry sprayer to make powder. Therefore, after long-term research and innovation, the inventor finally invented a drying sprayer structure, which is provided with a gap in the drying sprayer structure, so that the hot air will pass through the gap before entering the inside of the drying sprayer structure. In this way, the inner barrel wall of the drying sprayer structure will be heated first, so that when the liquid enters its inside and contacts the barrel wall and the hot air, the temperature of the barrel wall is higher than the hot air, so that the liquid hits the barrel wall Moisture vaporizes immediately so that a thin film of water vapor will form between the barrel wall and the droplets, and then the liquid water will evaporate to form a solid powder that will not stick to the barrel wall, increasing the efficiency of the use of the dry sprayer.

First, please refer to the first figure, which is a schematic diagram of a preferred embodiment of the present invention. As shown in the figure, the present invention is a drying sprayer structure 1 which includes a body 2 and a hot air device 3.

Wherein, the body 2 includes an outer shell 22 and an inner shell 24, the outer shell 22 covers the inner shell 24, and there is a gap S between the outer shell 22 and the inner shell 24, the The outer housing 22 is further provided with an air inlet 222, which is provided on one side of the outer housing 22, and the air inlet 222 is connected to the gap S, and the inner housing 24 is further provided with an air outlet 242, The air outlet 242 is provided on the side wall of the inner housing 24 or the extension of the side wall, and the air outlet 242 is in communication with the gap S, wherein the position of the air inlet 222 is set relative to the air outlet 242 In other words, the air inlet 222 is disposed below the air outlet 242, and the inner housing 24 is further provided with a feed inlet 244, a first outlet 246, and a second outlet 248, the inlet The feed port 244 is provided in the inner shell 24, and the first outlet 246 is provided on one side of the inner shell 24 or above the inner shell, wherein the position of the feed port 244 can be in the inner shell Above or below the body 24, the position of the first outlet 246 is relatively disposed below or one side of the feed port 244, and the opening direction of the first outlet 246 is disposed downward, and the hot air device 3 It is arranged outside the drying sprayer structure 1, and the hot air device 3 communicates with the air inlet 222 of the drying sprayer structure 1, the hot air device 3 generates hot air to blow into the air inlet 222, in addition, the The air outlet 242 is provided with a plurality of blades 53, the blades 53 are disposed between the outer shell 22 and the inner shell 24, or the blades 53 are disposed under the inner shell 24, and the blades 53 are At the same angle or different angles, when the hot air is blown into the gap S, it will exit through the air outlet 242, and the blades 53 can control the angle at which the hot air is ejected. The hot air device 3 further includes a filter device 32 And a heater 34, when the hot air device 3 draws in the outside air, it will first filter the air by the filtering device 32 and then pass the heater 34, and then enter the gap S from the air inlet 222 .

In addition, the feed port 244 in the drying sprayer structure 1 is provided on the top of the outer shell 24, and a feed device 4 is further provided on the outer shell 22, and the feed device 4 is in communication The feed port 244, and the feed device 4 is further connected to a rotary spray device 5, the rotary spray device 5 is disposed in the body 2, and is connected to the feed port 244 and the feed device 4, and the The rotary spraying device 5 includes a rotary atomizing element 51 and a motor 54. The rotary atomizing element 51 is connected to the motor 54. When the motor 54 is in operation, the rotary atomizing element 51 is driven to rotate, and the feed The device 4 has a pressure device inside, which can send the liquid in the feeding device 4 to the rotary spray device 5 through the pressure device, and then spray the liquid in the form of a mist or very small water droplets by the rotary atomizing element 51. The drying sprayer structure 1 is further provided with a feeding device 6, the feeding device 6 communicates with the first outlet 246, when the moisture of the liquid in the drying sprayer structure 1 evaporates, the solid powder will follow the drying spray The air in the machine structure 1 is discharged by the feeding device 6, and the opening of the first outlet 246 faces downward.

Next, please continue to refer to the second diagram, which is a schematic diagram of the action of a preferred embodiment of the present invention, and the third diagram, which is a partially enlarged schematic diagram of a preferred embodiment of the present invention. As shown in the figure, the hot air device 3 draws in air and is filtered by the filter device 32, and then heated by the heater 34 to form a hot air H (in this embodiment, the hot air H is indicated by an arrow), and finally enters through the air inlet 222 In the gap S, when the hot air H enters the gap S, the inner shell 24 is heated first, and the outer shell 22 has a heat insulation layer, which can prevent heat from being radiated out, and then from the inside The air outlet 242 on the casing 24 enters the inner casing 24, and there are the blades 53 between the inner casing 24 and the outer casing 22, or the blades 53 are arranged below the inner casing 24, which can make The hot air H enters the inner casing 24 into a rotating airflow, in order to enable the inner casing 24 to be sufficiently heated, the position of the air inlet 222 is relative to the air outlet 242 or the air inlet 222 is provided at one end of the gap S, the air outlet 242 is provided at the other end of the gap S relative to the air inlet 222, so that the inner housing 24 can be sufficiently heated, and the feed device 4 contains a liquid 42, The liquid 42 is sent to the rotary spraying device 5 via the feeding device 4, and then the rotary atomizing element 51 of the rotary spraying device 5 sprays the liquid 42 into the inner housing 24 in the form of a mist or very small water droplets , Then please continue to refer to the third figure, the liquid 42 will contact the inner wall of the inner casing 24 and the hot air H, because when the hot air H passes through the gap S, with a first temperature T1, the hot air H will The heat energy of the first temperature T1 is transferred to the side wall of the inner housing 24 to have a third temperature T3, so when the hot air H enters the inner housing 24, the hot air H Part of the heat energy at the first temperature T1 is transferred to the side wall of the inner casing 24, so that the first temperature T1 of the hot air H is transformed into a second temperature T2, and the second temperature T2 is less than the third temperature T3, The temperature of the liquid 42 is lower than the temperature of the hot air H. When the liquid 42 touches the side wall of the inner casing 24 in the form of mist or very small droplets, the third on the side wall of the inner casing 24 The temperature T3 and the second temperature T2 of the hot air H in the inner casing 24 will simultaneously evaporate the liquid 42 because the third temperature T3 is greater than the second temperature T2 when the liquid 42 and the inner casing When the side wall of the body 24 is in contact, the second temperature T2 will act on the liquid 42 so that a thin film of water vapor R will be generated between the liquid 42 and the side wall of the inner housing 24, so that the liquid 42 will be affected by the water The vapor film R is pushed out. When the water vapor evaporates, the solid powder remaining in the liquid 42 will not adhere to the side wall of the inner casing 24, and then the solid powder after the liquid 42 evaporates will pass the hot air H through the The first outlet 246 is discharged by the feeding device 6, in addition, the first outlet 246 is connected to the feeding device 6, and the opening direction of the first outlet 246 is downward, and the second outlet 248 is disposed at the body 2 Below, when the moisture of the liquid 24 is evaporated, the solid powder left behind will have fine particles and coarse particles , The fine particles will be discharged by the feeding device 6 from the first outlet 246 with the hot air H, while the coarse particles cannot be sucked into the first outlet 246 with the hot air H due to the heavier volume, it will Downward, and discharged from the second outlet 248, the coarse particles discharged from the second outlet 248 can be processed again and the dry sprayer structure 1 performs the above steps again.

Next, please continue to refer to the fourth figure, which is a schematic diagram of another embodiment of the present invention, and the fifth figure is a partially enlarged schematic diagram of another embodiment of the present invention. As shown in the figure, the air outlet 242 is disposed on the side wall or upper wall of the inner casing 24. In this embodiment, the air outlet 242 is disposed on the upper wall of the inner casing 24, and the blades 53 are disposed on Under the inner shell 24, the blades may also be disposed between the inner shell 24 and the outer shell 22, the feed port 244 is disposed in the inner shell 24, and is disposed relative to the air outlet 242 Below it, wherein the feed port 244 can be a plurality of the feed port 244, and the feed port 244 is connected to the feed device 4, wherein the feed device 4 contains a liquid 42, the rotary spray device 5 is disposed in the inner casing 24, and the rotary spray device 5 is connected to the feed device, wherein the rotary spray device 5 further includes a spray head 52 and a motor 54, and the spray head 52 is connected to the motor 54, When the motor 54 is started, the spray head 52 can be driven to rotate or enhance the force of the spray head 52 to spray liquid, and the spray head 52 is sprayed upward. In addition, the drying sprayer structure 1 is further provided with a feeding device 6, the feeding The device 6 communicates with the first outlet 246, and the opening of the first outlet 246 faces upward. A shutter 62 is provided at the opening of the first outlet 246, and the shutter 62 does not cover the first outlet 246. It is arranged above the first outlet 246 so that there is a gap between the first outlet 246 and the shutter 62. When the moisture of the liquid in the drying sprayer structure 1 evaporates, the solid powder will follow the drying sprayer The air in the structure 1 is discharged by the feeding device 6, wherein the solid powder can be divided into fine particles and coarse particles. The fine particles will be sucked into the first outlet 246 by the feeding device 6 along with the air. Heavy, it will fall down to a second outlet 248, the second outlet 248 is disposed below the body 2, and the function of the cover 62 is to shield the coarse particle powder, so that the feeding device 6 sucks the powder, Only hot air and fine particles will be tied in through the first outlet 246. Next, with reference to the fifth figure, when the hot air device 3 blows the hot air H to the gap S and then to the inner housing 24, when the hot air H passes through the gap S, it has a first temperature T1 and the hot air H The heat energy of the first temperature T1 is transferred to the side wall of the inner housing 24 to have a third temperature T3, so when the hot air H enters the inner housing 24, the hot air H has already Transferring part of the heat energy of the first temperature T1 to the side wall of the inner casing 24, so that the first temperature T1 of the hot air H is transformed into a second temperature T2, and the second temperature T2 is less than the third temperature T3, the temperature of the liquid 42 is lower than the temperature of the hot air H. When the liquid 42 is sprayed upward from below the inner casing 24 in the form of a mist or very small water droplets and touches the side wall of the inner casing 24, the The third temperature T3 on the side wall of the inner casing 24 and the second temperature T2 of the hot air H in the inner casing 24 will simultaneously evaporate the water vapor of the liquid 42 because the third temperature T3 is greater than the The second temperature T2, when the liquid 42 is in contact with the side wall of the inner housing 24, the second temperature T2 will act on the liquid 42 so that a liquid will be generated between the liquid 42 and the side wall of the inner housing 24 The water vapor film R causes the liquid 42 to be pushed out by the water vapor film R. To further explain, when the liquid 42 is ejected from the bottom up through the nozzle 52, the second temperature T2 of the hot air H will first The moisture of the liquid 42 evaporates. After the liquid 42 touches the side wall of the inner casing 24, the moisture of the liquid 42 is evaporated by the third temperature T3. If the moisture of the liquid 42 cannot be evaporated, it may By the liquid 42 evaporating water from the distance above the inner casing 24 like the falling distance, compared to the previous embodiment, the liquid 42 of this embodiment has about twice the water evaporation distance, because When the liquid 42 is ejected to touch the side wall of the inner housing 24, if there is still some moisture, it can be evaporated by the distance of the drop. Compared with the previous embodiment, the rotation of the previous embodiment The spraying device 5 is arranged above the outer casing 22. When the liquid 52 is ejected by the spray head 52, the liquid 42 directly falls after touching the side wall of the inner casing 24, but this embodiment The rotary spray device 5 is disposed below the inner housing 24. When the spray head 52 of the rotary spray device 5 sprays the liquid 42 upward, the liquid 42 touches the side wall of the inner housing 24 and the hot air H After contact, the liquid 42 will quickly evaporate. If the water of the liquid 42 is ejected upwards and has not yet evaporated, the liquid 42 can continue to evaporate water when it falls, ensuring that the liquid 42 can be completely transformed into a solid powder Then, the solid powder after the liquid 42 evaporates will be discharged by the feeding device 6 through the first outlet 246 along with the hot air H. In addition, the first outlet 246 is connected to the feeding device 6 and the first outlet 246 The opening direction is upward, and the shutter 62 is provided above the first outlet 246, The second outlet 248 is disposed below the body 2. After the water of the liquid 24 is evaporated, the solid powder left will have fine particles and coarse particles. The fine particles will follow the hot air H from the first An outlet 246 is discharged by the feeding device 6, and coarse particles cannot be sucked into the first outlet 246 with the hot air H due to the heavier volume, it will fall down and be discharged by the second outlet 248, The shutter 62 is used to prevent coarse particles from falling into the first outlet 246. The coarse particles discharged from the second outlet 248 can be processed again and the dry sprayer structure 1 performs the above steps again. .

In summary, the drying sprayer structure 1 sets the gap S between the inner casing 24 and the outer casing 22, so that the hot air H generated by the external hot air device 3 will first pass through the gap S and convert the The heat energy of the hot air H is transmitted to the side wall of the inner housing 24. When the hot air H enters the inner housing 24, the temperature of the hot air H will be lower than the temperature of the side wall of the inner housing 24, and then the liquid 42 passes through the The spray head 52 sprays out and will contact the inner casing 24 and the hot air H. At this time, because the temperature of the side wall of the inner casing 24 is higher than the temperature of the hot air H, when the liquid 42 touches the side wall of the inner casing 24 At this time, a vapor film will be generated between the side wall of the inner housing 24 and the liquid 42 so that when the liquid 42 becomes a solid powder, it will not stick to the side wall of the inner housing 24. With the above structure , It can fully avoid the liquid powder, the powder is easy to stick to the side wall of the inner casing 24, and increase the use efficiency of the drying sprayer structure 1, without having to frequently clean the barrel wall sticking The operation, that is, the smoothness of the barrel wall can be kept, and the solid powder obtained is relatively delicate, which can reduce the generation of waste materials and increase the work efficiency.

However, the above are only the preferred embodiments of the present invention and are not intended to limit the scope of the implementation of the present invention. Any changes and modifications based on the shape, structure, features and spirit described in the patent application scope of the present invention , Should be included in the scope of the patent application of the present invention.

1‧‧‧Dry sprayer structure

2‧‧‧Body

22‧‧‧Outer shell

222‧‧‧Air inlet

24‧‧‧Inner shell

242‧‧‧Outlet

244‧‧‧Inlet

246‧‧‧First exit

248‧‧‧Second exit

3‧‧‧Hot air device

32‧‧‧Filter device

34‧‧‧ Heater

4‧‧‧Feeding device

42‧‧‧Liquid

5‧‧‧Rotary spray device

51‧‧‧rotating atomizing element

52‧‧‧Sprinkler

53‧‧‧blade

54‧‧‧Motor

6‧‧‧Feeding device

62‧‧‧ Shutter

S‧‧‧Gap

H‧‧‧Hot air

R‧‧‧Water vapor film

The first picture: it is a schematic diagram of a preferred embodiment of the invention; the second picture: it is a schematic diagram of the action of a preferred embodiment of the invention; the third picture: it is a comparative example of the invention Partially enlarged schematic view of the preferred embodiment; Figure 4: It is a schematic diagram of the action of another preferred embodiment of the present invention; and Figure 5: It is a partially enlarged schematic view of another preferred embodiment of the present invention .

Claims (9)

A drying sprayer structure includes: a body including an outer shell and an inner shell, the outer shell covers the inner shell, and there is a gap between the outer shell and the inner shell, the outer shell The body is further provided with an air inlet and a feed device and the inner housing is further provided with an air outlet, the air inlet is provided on the outer body and communicates with the gap, the feed device is provided on the outer body , And the air outlet is provided on the inner casing and communicates with the gap, and a feed inlet and a first outlet are further provided, the feed inlet is provided on the inner casing, and the feed device communicates with the The feeding port further includes a liquid in the feeding device, and the liquid is delivered to the feeding port by the feeding device, wherein the temperature of the liquid is less than the temperature of the hot air, and the first outlet is located at the Inside the inner casing, and the opening of the first outlet is facing downward; and a hot air device, which communicates with the air inlet and generates a hot air. The drying sprayer structure as described in item 1 of the patent application scope, wherein the feed port is provided on the outer casing. The structure of the drying sprayer as described in item 1 of the scope of the patent application, wherein the feed inlet is provided in the inner housing and above the air outlet. The drying sprayer structure as described in item 1 of the patent application scope, wherein the feeding device is connected to a rotating spraying device, and the rotating spraying device is arranged in the casing and communicates with the feeding port. The drying sprayer structure as described in item 4 of the patent application scope, wherein the rotary spraying device includes a spray head and a motor, the spray head is connected to the motor, so that the motor drives the spray head to rotate, and the liquid is sprayed through the spray head . As the structure of the drying sprayer described in item 1 of the patent application scope, a feeding device is further provided, which communicates with the first outlet. The structure of the drying sprayer as described in item 1 of the patent application scope, wherein the hot air device is further connected to a filtering device. The structure of the drying sprayer as described in item 1 of the patent application, wherein the hot air device further includes a heater. The structure of the drying sprayer as described in item 1 of the patent application scope, wherein the first outlet is located below the feed inlet.