CN112403758A

CN112403758A - Plate spraying device based on spraying recovery

Info

Publication number: CN112403758A
Application number: CN202011363050.8A
Authority: CN
Inventors: 张焕兵; 叶昌海
Original assignee: Chengdu Green Express Environmental Protection Technology Co Ltd
Current assignee: Chengdu Green Express Environmental Protection Technology Co Ltd
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2021-02-26

Abstract

The invention discloses a plate spraying device based on spray recovery, which comprises a spraying bin, wherein a conveying mechanism for conveying plates is arranged in the spraying bin, and a spraying assembly is arranged above and/or below the conveying mechanism; the spraying assembly comprises a spraying mechanism for spraying the surface of the plate and a spray recovery mechanism for recovering the spray; the spray recovery mechanism comprises an air suction channel, one end of the air suction channel facing the conveying mechanism is provided with an air suction opening, and the spray opening and the air suction opening which belong to the same spray circulation mechanism are both positioned above or below the conveying mechanism; the air suction channel is connected with a spray recovery device, the spray recovery device comprises a recovery box, an air inlet structure for injecting spray into the bottom of the recovery box is arranged in the recovery box, and an air outlet is formed in the top of the recovery box; the air inlet structure comprises an air inlet pipe extending into the bottom of the recovery box; or the air inlet structure comprises an air inlet arranged at the bottom of the recovery box.

Description

Plate spraying device based on spraying recovery

Technical Field

The invention belongs to the technical field of plate processing, and particularly relates to a plate spraying device based on spray recovery.

Background

In the existing household wood products, a large number of solid wood particle boards and density boards are adopted. The solid wood particle board is an artificial board which is formed by smashing logs or wood rods, using fine wood fibers at two sides, sandwiching long wood fibers in the middle, applying an adhesive, and gluing under the action of heat and pressure, wherein the facing surface of the panel is a melamine facing surface, and the section of the panel is a honeycomb board. The density board is called as density fiber board, and is one kind of board produced with wood fiber or other plant fiber as material and through fiber preparation, applying synthetic resin, heating and pressurizing.

As the solid wood particle board and the density board both need glue in the manufacturing process, formaldehyde can be released in the using process. If the formaldehyde emission exceeds a certain concentration standard, the formaldehyde emission will have adverse effects on human health. In the prior art, the surface of a plate is generally sprayed with a medicament with the functional effects of removing aldehyde or removing odor, but the medicament can only be sprayed on the specific surface of the plate generally, and if a plurality of structures such as holes, mortise and tenon grooves are formed on the plate, the sprayed medicament is difficult to cover the surfaces of the structures such as the holes, the mortise and tenon grooves. In addition, the sprayed chemicals can splash around after rebounding from the surface of the plate, and the splashed chemicals are difficult to recycle, so that the chemicals are wasted.

Disclosure of Invention

In view of the above, an object of the present invention is to provide a plate material spraying apparatus based on spray recovery, which can cover any position of a plate material with a chemical by a spraying method, and can improve a spray recovery rate and a chemical utilization rate.

In order to achieve the purpose, the invention provides the following technical scheme:

a plate spraying device based on spray recovery comprises a spraying bin, wherein a conveying mechanism used for conveying plates is arranged in the spraying bin, and a spraying assembly is arranged above and/or below the conveying mechanism;

the spraying assembly comprises a spraying mechanism for spraying the surface of the plate and a spray recovery mechanism for recovering the spray;

the spray recovery mechanism comprises a suction channel, one end of the suction channel facing the conveying mechanism is provided with a suction inlet, and the spray inlet and the suction inlet belonging to the same spray circulation mechanism are both positioned above or below the conveying mechanism;

the air suction channel is connected with a spray recovery device, the spray recovery device comprises a recovery box, an air inlet structure for injecting spray into the bottom of the recovery box is arranged in the recovery box, and an air outlet is formed in the top of the recovery box; the air inlet structure comprises an air inlet pipe extending into the bottom of the recovery box; or the air inlet structure comprises an air inlet arranged at the bottom of the recovery box.

Furthermore, an overflow port is arranged on the recovery box.

Furthermore, a partition plate is arranged between the overflow port and the air outlet of the air inlet structure; when the top surface of the partition plate is higher than the overflow height of the overflow port, the partition plate is provided with a communication hole with the height lower than the overflow height of the overflow port; the communicating hole and the bottom of the recovery box are arranged at a height interval for preventing impurities precipitated at the bottom of the recovery box from passing through the communicating hole.

Furthermore, a first drain pipe and a second drain pipe are arranged at the bottom of the recovery box, a first drain valve is arranged on the first drain pipe, and a second drain valve is arranged on the second drain pipe; the first drain pipe with the gas outlet of air inlet structure is located same one side of baffle, the second drain pipe with the overflow mouth is located same one side of baffle.

Further, the overflow device also comprises a liquid storage tank, and the overflow port is connected with the liquid storage tank; and a filtering device is arranged between the first drain pipe and the water storage tank and between the second drain pipe and the water storage tank.

Furthermore, the air suction channel comprises an air suction cavity and an air suction pipe, and the air suction opening is formed in the air suction cavity.

Further, an air inlet grille is arranged on the air suction opening, and a liquid collecting tank used for collecting the spray condensed on the air inlet grille is arranged at the bottom of the air inlet grille; and the air inlet grid is sprayed with a hydrophobic layer.

Further, be equipped with the air exit on the spraying storehouse, be equipped with the exhaust pipe on the air exit, be equipped with in the exhaust pipe and induced draft fan and be used for the drive induced draft motor of induced draft fan, the aspiration channel with the exhaust pipe links to each other.

Furthermore, two sides of the spraying mechanism are respectively provided with a spraying recovery mechanism; the air suction pipes of all the air suction channels are connected with the exhaust pipe; or the exhaust pipes are arranged in one-to-one correspondence with the air suction channels, and the air suction pipes of the air suction channels are respectively connected with the corresponding exhaust pipes.

Further, a light-touch reaction exciter is arranged in the spraying bin.

Further, the spraying mechanism includes a spray gun that sprays toward the conveying mechanism.

Further, the spraying mechanism still includes the spray cover, the nozzle setting is in the spray cover is towards the one end of conveying mechanism, the spray gun sets up in the spray cover and towards the nozzle spraying.

Further, the spraying mechanism comprises a spraying channel arranged at one end, facing the conveying mechanism, of the spraying channel, and an atomizer used for converting the medicament into spraying, a fan used for enabling the spraying generated by the atomizer to be sprayed out of the spraying opening and a motor used for driving the fan to rotate are arranged in the spraying channel.

The invention has the beneficial effects that:

according to the plate spraying device based on spray recovery, the spray generated by the spraying mechanism is directly sprayed out towards the conveying mechanism, part of the spray is adhered to the plate, and the other part of the spray is sucked into the air suction channel to realize cyclic recovery and utilization; because the diffusion of the spray has randomness, when the structures such as holes, mortise and tenon grooves and the like are arranged in the plate, the diffused spray can also enter the structures, so that the plate is covered with the medicament at any position; through connect on the suction channel and set up the spraying recovery unit, during the use, prestore can solution spraying agent's solution in the collection box, inject the spraying into solution through inlet structure, so, the medicament that carries in the spraying is dissolved in the solvent, and insoluble control is discharged from gas outlet department, can realize the medicament recovery purpose in the spraying to have the advantage that the rate of recovery is high, can improve the medicament utilization ratio.

Drawings

In order to make the object, technical scheme and beneficial effect of the invention more clear, the invention provides the following drawings for explanation:

FIG. 1 is a schematic structural diagram of a plate material spraying device 1 based on spray recycling according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a spray recovery device;

fig. 3 is a schematic structural diagram of a plate material spraying device in an embodiment 2 based on spray recovery.

1-spraying a bin; 2-a plate material; 3-a conveying mechanism; 4-spraying a cover; 5-a spray nozzle; 6-a spray gun; 7-an aspiration channel; 7 a-a suction cavity; 7 b-an air suction pipe; 8-an air suction opening; 9-an air inlet grille; 10-a liquid collecting tank; 11-an air outlet; 12-an air suction fan; 13-a suction motor; 14-an exhaust duct; 15-a light-touch reaction exciter; 16-a spray channel; 16 a-a large channel section; 16 b-a small channel section; 16 c-a transition section; 17-a motor; 18-an atomizer; 19-a fan; 20-a recycling bin; 21-air outlet; 22-an air inlet pipe; 23-an overflow port; 24-a separator; 25-a communicating hole; 26-a first drain pipe; 27-a second drain pipe; 28-a first drain valve; 29-a second drain valve; 30-a liquid storage tank; 31-a filtration device; 32-rectifier.

Detailed Description

The present invention is further described with reference to the following drawings and specific examples so that those skilled in the art can better understand the present invention and can practice the present invention, but the examples are not intended to limit the present invention.

Example 1

Fig. 1 is a schematic structural diagram of a plate material spray apparatus 1 according to an embodiment of the present invention. This embodiment is based on panel atomizer that spraying was retrieved includes spraying storehouse 1, is equipped with the conveying mechanism 3 that is used for carrying panel 2 in spraying storehouse 1, and conveying mechanism 3's top and/or below are equipped with the spraying subassembly. In this embodiment, only the spraying assembly is arranged above the conveying mechanism 3, and of course, according to the spraying requirements of different plates, the spraying assembly can be arranged below the conveying mechanism, and the spraying assemblies and the like are arranged on the upper side and the lower side of the conveying mechanism, which will not be described in detail.

The spraying assembly comprises a spraying mechanism for spraying the surface of the plate and a spray recovery mechanism for recovering the spray; the spraying mechanism of the present embodiment includes a spray gun 6 that sprays toward the conveying mechanism 3. Specifically, the spraying mechanism of this embodiment still includes the spray hood 4, spray hood 4 towards conveying mechanism 3's one end is equipped with nozzle 5, spray gun 6 sets up in the spray hood 4 and towards nozzle 5 spraying, through setting up spray hood 4, can make and do not receive outside air current interference in the spray hood 4 to the spraying that makes the spraying moves along with the air current and is more stable controllable. The spray gun 6 can directly convert the medicament into spray, and the spray is directly sprayed from the spray opening 5 and can be adhered to the surface of the plate. The mechanism is retrieved in spraying of this embodiment includes air suction channel 7, and air suction channel 7 is equipped with inlet scoop 8 towards the one end of conveying mechanism 3, and the fog mouth 5 that belongs to same spraying circulation mechanism and inlet scoop 8 all are located conveying mechanism 3's top or below. The spray opening 5 and the suction opening 8 of the present embodiment are both located above the conveying mechanism 3.

The suction passage 7 of this embodiment is connected to a mist recovery device. The spray recovery device of the embodiment comprises a recovery box 20, wherein an air inlet structure for injecting spray into the bottom of the recovery box 20 is arranged in the recovery box 20, and an air outlet 21 is arranged at the top of the recovery box 20; the air intake structure includes an air intake duct 22 extending into the bottom of the recovery tank 20; alternatively, the air intake structure includes an air intake port disposed at the bottom of the recovery tank 20. The air intake structure of the present embodiment employs an air intake pipe 22 extending into the bottom of the recovery tank 20, and the air intake pipe 22 communicates with the air intake passage 7. The spray recovery device of this embodiment, during the use, prestore can solution spray medicament's solution in the collection box, with the spraying through inlet structure inject into solution in, so, the medicament that carries in the spraying is dissolved in the solvent, and insoluble control is discharged from gas outlet department, can realize the medicament recovery purpose in the spraying to have the advantage that the rate of recovery is high.

Further, the air suction channel 7 of the present embodiment includes an air suction chamber 7a and an air suction pipe 7b, and the air suction opening 8 is disposed on the air suction chamber 7 a. Of course, in some embodiments, the air suction opening 8 may further be provided with an air inlet grille 9, the bottom of the air inlet grille 9 is provided with a liquid collecting groove 10 for collecting the spray condensed on the air inlet grille 9, and the air inlet grille 9 is coated with a hydrophobic layer, so that the condensed spray can be collected in the liquid collecting groove 10. By arranging the air inlet grille 9, under the action of the air inlet grille 9, the spray is gathered on the air inlet grille 9 to form water drops, and the water drops flow into the liquid collecting tank 10 along the air inlet grille 9, so that the recycling of the spray is realized. Preferably, in particular, the air inlet grille 9 and the liquid collecting tank 10 of the present embodiment may refer to corresponding structures of an existing range hood, such as a range hood and a filtering device thereof disclosed in chinese patent publication No. CN111853882A, and an environment-friendly range hood for home life disclosed in chinese patent publication No. CN211802506U, which are not described repeatedly.

Further, the spraying cabin 1 of the embodiment is provided with an air outlet 11, the air outlet 11 is provided with an air exhaust pipe 14, the air exhaust pipe 14 is provided with an air suction fan 12 and an air suction motor 13 for driving the air suction fan 12, and the air suction pipe 7b is connected with the air exhaust pipe 14. Specifically, this embodiment belongs to the spraying mechanism of same spraying subassembly and establishes to one, and the mechanism is retrieved to the spraying establishes to two, and two spraying are retrieved the mechanism and are located the both sides of spraying mechanism respectively, and the both sides of spraying mechanism are equipped with the spraying respectively and retrieve the mechanism promptly, further improve spraying circulation and retrieve the effect. The suction pipes 7b of all the suction channels 7 belonging to the same spraying component are connected with the exhaust pipe 14, that is, in this embodiment, one suction fan 12 can be used to generate suction to a plurality of suction channels 7, thereby achieving the technical purpose of spraying recovery. Of course, the exhaust pipes 14 and the air suction channels 7 may be arranged in a one-to-one correspondence, and the air suction pipes 7b of the air suction channels 7 are respectively connected with the corresponding exhaust pipes 14, so that the technical purpose of spray recovery can be achieved.

Furthermore, at least one row of spray guns 6 is arranged in the spray cover 4, and each row of spray guns 6 comprises at least two spray guns 6. The spray guns 6 of the present embodiment are arranged in a row, the spray opening 5 is formed in a long slit shape, and the number of the spray guns 6 in the row is set according to the length of the spray opening 5 so that the spray can be uniformly discharged from the spray opening 5.

Further, a light-contact reaction exciter 15 for exciting a light-catalyst reaction is arranged in the spraying bin 1. When the medicament is aldehyde removing liquid, the photocatalyst reaction can be excited by arranging the photocatalyst reaction exciter 15, so that the technical purpose of reducing aldehyde is achieved. The photoreaction activator 15 may be an ultraviolet lamp emitting ultraviolet light or a white lamp emitting white light.

Further, an overflow port 23 is provided in the recovery tank 20, and when the solution in the recovery tank 20 exceeds a certain amount, the solution overflows through the overflow port 23. A partition plate 24 is arranged between the overflow port 23 and the air outlet of the air inlet structure, and when the height of the partition plate 24 is lower than the overflow height of the overflow port 23, the communication hole 25 is not required to be arranged on the partition plate 24; when the top surface of the partition plate 24 is higher than the overflow height of the overflow port 23, the partition plate 24 is provided with a communication hole 25 having a height lower than the overflow height of the overflow port 23. The partition plate 24 of the present embodiment has a top surface higher than the overflow height of the overflow port 23, and the partition plate 24 is provided with a communication hole 25 having a height lower than the overflow height of the overflow port 23, and preferably, a height interval between the communication hole 25 and the bottom of the recovery tank 20 is provided to prevent impurities precipitated at the bottom of the recovery tank 20 from passing through the communication hole 25. Through setting up baffle 24, can avoid the inlet structure to let in the disturbance that the air current was produced to the collection box and make the impurity that deposits in the collection box 20 bottom diffuse to overflow mouth 23 to guarantee that the solution of overflow mouth 23 overflow does not contain impurity or impurity content is in lower level.

Further, a first drain pipe 26 and a second drain pipe 27 are arranged at the bottom of the recycling tank 20, a first drain valve 28 is arranged on the first drain pipe 26, and a second drain valve 29 is arranged on the second drain pipe 27; the first drain pipe 26 and the air outlet of the air inlet structure are located on the same side of the partition 24, and the second drain pipe 27 and the overflow port 23 are located on the same side of the partition 24. The spray recovery device of the embodiment further comprises a liquid storage tank 30, and the overflow port 23 is connected with the liquid storage tank 30. The filtering device 31 is disposed between the first and second

water discharging pipes

26 and 27 and the water storage tank 30, so as to prevent impurities discharged through the first and second

water discharging pipes

26 and 27 from entering the water storage tank 30.

In the plate spraying device based on spray recovery of the embodiment, the spray generated by the spraying mechanism is directly sprayed out towards the conveying mechanism, part of the spray is adhered to the plate, and the other part of the spray is sucked into the air suction channel to realize cyclic recovery and utilization; because the diffusion of the spray has randomness, when the structures such as holes, mortise and tenon grooves and the like are arranged in the plate, the diffused spray can also enter the structures, so that the plate is covered with the medicament at any position; through connect on the suction channel and set up the spraying recovery unit, during the use, prestore can solution spraying agent's solution in the collection box, inject the spraying into solution through inlet structure, so, the medicament that carries in the spraying is dissolved in the solvent, and insoluble control is discharged from gas outlet department, can realize the medicament recovery purpose in the spraying to have the advantage that the rate of recovery is high, can improve the medicament utilization ratio.

Example 2

Fig. 3 is a schematic structural diagram of a plate material spray apparatus in accordance with embodiment 2 of the present invention. This embodiment is based on panel atomizer that spraying was retrieved includes spraying storehouse 1, is equipped with the conveying mechanism 3 that is used for carrying panel 2 in spraying storehouse 1, and conveying mechanism 3's top and/or below are equipped with the spraying subassembly. In this embodiment, only the spraying assembly is arranged above the conveying mechanism 3, and of course, according to the spraying requirements of different plates, the spraying assembly can be arranged below the conveying mechanism, and the spraying assemblies and the like are arranged on the upper side and the lower side of the conveying mechanism, which will not be described in detail.

The spraying assembly comprises a spraying mechanism for spraying the surface of the plate material and a spray recovery mechanism for recovering the spray. The spraying mechanism of the embodiment comprises a spraying channel 16, wherein one end of the spraying channel 16, which is close to the conveying mechanism, is provided with a spraying opening 5, and an atomizer 18 for converting a medicament into a spray, a fan 19 for enabling the spray generated by the atomizer 18 to be sprayed out from the spraying opening 5 and a motor 17 for driving the fan 19 to rotate are arranged in the spraying channel 16.

Further, the spray passage 16 includes a large passage section 16a located at the upstream and a small passage section 16b located at the downstream, the flow area of the large passage section 16a is larger than that of the small passage section 16b, a transition section 16c is provided between the large passage section 16a and the small passage section 16b, the spray opening 5 is provided on the small passage section 16b, and the fan 19 is provided in the large passage section 16 a. Preferably, the flow area of the transition section 16c gradually decreases in the upstream-downstream direction, and the flow speed of the spray in the small channel section 16b can be increased by setting the flow area of the small channel section 16b smaller than that of the large channel section 16a, so that the spray can contact with the surface of the plate under the action of kinetic energy after being sprayed, and can be adsorbed on the surface of the plate. Preferably, a flow straightener 32 for evenly distributing the spray is further provided in the spray channel 16, and the flow straightener 32 is located at the downstream side of the fan 19. Specifically, the spray opening 5 of the present embodiment has a long slit structure, and by providing the flow straightener 32, the spray can be uniformly sprayed from the spray opening 5, so that the chemical can be uniformly adhered to the surface of the plate material.

The mechanism is retrieved in spraying of this embodiment includes air suction channel 7, and air suction channel 7 is equipped with inlet scoop 8 towards the one end of conveying mechanism 3, and the fog mouth 5 that belongs to same spraying circulation mechanism and inlet scoop 8 all are located conveying mechanism 3's top or below. The spray opening 5 and the suction opening 8 of the present embodiment are both located above the conveying mechanism 3.

Other embodiments of the present embodiment are the same as embodiment 1, and are not described in detail.

The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.

Claims

1. The utility model provides a panel atomizer based on spraying is retrieved which characterized in that: the plate spraying device comprises a spraying bin (1), wherein a conveying mechanism (3) for conveying a plate (2) is arranged in the spraying bin (1), and a spraying assembly is arranged above and/or below the conveying mechanism (3);

the spraying mechanism comprises a spraying opening (5), the spraying recovery mechanism comprises a suction channel (7), one end of the suction channel (7) facing the conveying mechanism (3) is provided with a suction opening (8), and the spraying opening (5) and the suction opening (8) belonging to the same spraying circulation mechanism are both positioned above or below the conveying mechanism (3);

the air suction channel (7) is connected with a spray recovery device, the spray recovery device comprises a recovery box (20), an air inlet structure for injecting spray into the bottom of the recovery box (20) is arranged in the recovery box (20), and an air outlet (21) is arranged at the top of the recovery box (20); the air inlet structure comprises an air inlet pipe (22) extending into the bottom of the recovery tank (20); or the air inlet structure comprises an air inlet arranged at the bottom of the recovery box (20).

2. The spray recovery based panel spraying apparatus of claim 1, wherein: an overflow port (23) is arranged on the recovery tank (20).

3. The spray recovery based panel spraying apparatus of claim 2, wherein: a clapboard (24) is arranged between the overflow port (23) and the air outlet of the air inlet structure; when the top surface of the clapboard (24) is higher than the overflow height of the overflow port (23), the clapboard (24) is provided with a communicating hole (25) with the height lower than the overflow height of the overflow port (23); the communicating hole (25) and the bottom of the recovery tank (20) have a height interval therebetween which prevents impurities precipitated at the bottom of the recovery tank (20) from passing through the communicating hole (25).

4. The spray recovery based panel spraying apparatus of claim 3, wherein: a first drain pipe (26) and a second drain pipe (27) are arranged at the bottom of the recovery tank (20), a first drain valve (28) is arranged on the first drain pipe (26), and a second drain valve (29) is arranged on the second drain pipe (27); the first drain pipe (26) and the air outlet of the air inlet structure are positioned on the same side of the partition plate (24), and the second drain pipe (27) and the overflow port (23) are positioned on the same side of the partition plate (24).

5. The spray recovery based panel spraying apparatus of claim 4, wherein: the overflow port (23) is connected with the liquid storage tank (30); and a filtering device (31) is arranged between the first drainage pipe (26) and the second drainage pipe (27) and the water storage tank (30).

6. The spray recovery based panel spraying apparatus of claim 1, wherein: the air suction channel (7) comprises an air suction cavity (7a) and an air suction pipe (7b), and the air suction opening (8) is formed in the air suction cavity (7 a).

7. The spray recovery based panel spraying apparatus of claim 1, wherein: an air inlet grille (9) is arranged on the air suction opening (8), and a liquid collecting tank (10) for collecting the spray condensed on the air inlet grille (9) is arranged at the bottom of the air inlet grille (9); and a hydrophobic layer is sprayed on the air inlet grille (9).

8. The plate material spraying device based on spray recovery as claimed in claim 6 or 7, wherein: be equipped with air exit (11) on spraying storehouse (1), be equipped with exhaust pipe (14) on air exit (11), be equipped with in exhaust pipe (14) suction fan (12) and be used for the drive suction motor (13) of suction fan (12), aspiration channel (7b) with exhaust pipe (14) link to each other.

9. The spray recovery based panel spraying apparatus of claim 8, wherein: two sides of the spraying mechanism are respectively provided with a spraying recovery mechanism; the air suction pipes (7b) of all the air suction channels (7) are connected with the exhaust pipe (14); or the exhaust pipes (14) and the air suction channels (7) are arranged in a one-to-one correspondence mode, and the air suction pipes (7b) of the air suction channels (7) are connected with the corresponding exhaust pipes (14) respectively.

10. The spray recovery based panel spraying apparatus of claim 1, wherein: and a light-touch reaction exciter (15) is arranged in the spraying bin (1).

11. The spray recovery based panel spraying apparatus of claim 1, wherein: the spraying mechanism comprises a spray gun (6) spraying towards the conveying mechanism (3).

12. The spray recovery based panel spraying apparatus of claim 11, wherein: the spraying mechanism further comprises a spraying cover (4), the spraying opening (5) is formed in the position, facing one end of the conveying mechanism (3), of the spraying cover (4), and the spraying spray gun (6) is arranged in the spraying cover (4) and sprays towards the spraying opening (5).

13. The spray recovery based panel spraying apparatus of claim 1, wherein: the spraying mechanism comprises a spraying channel (16), the spraying opening (5) is arranged at one end, facing the conveying mechanism, of the spraying channel (16), and an atomizer (18) used for converting a medicament into a spray, a fan (19) used for enabling the spray generated by the atomizer (18) to be sprayed out of the spraying opening (17) and a motor (17) used for driving the fan (19) to rotate are arranged in the spraying channel (16).