CN215775475U - Automatic cigarette perfuming device - Google Patents

Abstract

The utility model provides an automatic cigarette flavoring device which comprises a spice storage tank, a feeding pump, a cigarette support and an annular atomizing device, wherein the inlet of the feeding pump is communicated with the spice storage tank through a liquid supply pipeline, the annular atomizing device comprises an annular shell and at least two atomizing nozzles arranged on the annular shell, the at least two atomizing nozzles are uniformly distributed along the circumferential direction of the annular shell, the inlets of the atomizing nozzles are communicated with the outlet of the feeding pump through a liquid inlet pipeline, and the outlets of the atomizing nozzles face the center of the annular shell to form a spraying space for spraying spice on cigarettes. When the automatic cigarette flavoring device is used, spice enters the feeding pump through the liquid inlet pipeline and is conveyed to the atomizing nozzles on the annular shell by the feeding pump, and the atomizing nozzles uniformly spray spice to cigarettes in multiple directions to finish the automatic flavoring of the cigarettes. The cigarette is uniformly sprayed with spice through the automatic cigarette perfuming device, so that the consistency of the perfuming effect of the cigarette is ensured.

Description

Automatic cigarette perfuming device

Technical Field

The utility model relates to the technical field of tobacco processing equipment, in particular to an automatic cigarette flavoring device.

Background

The cigarette flavoring can cover up the miscellaneous gas, improve the smoking taste, endow the cigarette with the style characteristics and improve the sensory quality of the cigarette product, and is an indispensable important process for manufacturing the cigarette product. The cigarette flavoring comprises various modes such as tobacco shred flavoring, filter stick flavoring, cigarette paper flavoring and the like. In the industrial production stage, the perfuming of the cigarette paper is carried out by adding essence perfume into the paper pulp of the cigarette paper or coating the essence perfume after the cigarette paper is formed, wherein the perfuming is finished before the cigarette is formed, and then the cigarette is rolled, connected and packaged.

In the stage of product development, the method undoubtedly causes paper waste, so product developers usually dip the essence and the spice with a brush, manually coat the essence and the spice on the formed cigarettes, and perform suction evaluation after drying. However, the coating method often has a great influence on the sensory quality of cigarettes due to human factors such as uneven coating, difficulty in controlling the coating amount and the like, and the samples in the same batch have great individual difference and poor consistency.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an automatic cigarette flavoring device to solve the problems of large cigarette flavoring difference and poor consistency in the product research and development stage.

In order to realize the aim, the automatic cigarette flavoring device adopts the following technical scheme:

an automatic cigarette flavoring device comprises a spice storage tank and a feeding pump, wherein an inlet of the feeding pump is communicated with the spice storage tank through a liquid supply pipeline; the automatic cigarette flavoring device also comprises a cigarette bracket and an annular atomizing device, wherein the cigarette bracket is provided with two supporting grooves for respectively supporting two ends of a cigarette; annular atomizing device includes annular housing and installs the atomizing nozzle on annular housing, and atomizing nozzle is provided with at least two and follows annular housing's circumference equipartition, and atomizing nozzle's import is through the export intercommunication of liquid inlet pipe way and feed pump, and atomizing nozzle's export is towards annular housing center, encloses into between each atomizing nozzle's the export and is used for spraying the spraying space of spices to the cigarette.

The beneficial effects of the above technical scheme are that: the automatic cigarette flavoring device comprises a spice storage tank, a feeding pump and a cigarette support, wherein the spice storage tank is used for providing raw materials for flavoring cigarettes, the feeding pump is used for quantitatively transporting spices, and the cigarette support is used for supporting the cigarettes; the perfuming device also comprises an annular atomizing device, the annular atomizing device comprises an annular shell and atomizing nozzles arranged on the annular shell, the atomizing nozzles are provided with at least two circumferential uniform distribution along the annular shell, the outlets of the atomizing nozzles face the center of the annular shell, a spraying space used for spraying spice on cigarettes is enclosed between the outlets of the atomizing nozzles, and the atomizing nozzles can uniformly spray the cigarettes in a multi-azimuth manner.

When the automatic cigarette flavoring device is used, the spice in the spice storage tank enters the feeding pump through the liquid inlet pipeline, the feeding pump quantitatively transports the spice to the atomizing nozzles on the annular shell through the liquid inlet pipeline, and the atomizing nozzles uniformly spray the spice in multiple directions on cigarettes to finish the automatic flavoring of the cigarettes. The cigarette is uniformly sprayed with spice through the automatic cigarette perfuming device, so that the consistency of the perfuming effect of the cigarette is ensured.

Furthermore, the automatic cigarette flavoring device also comprises a moving device which is fixedly connected with the cigarette support or the annular atomizing device so as to drive the cigarette support or the annular atomizing device to move; the lower part of the annular shell is provided with an opening for the smoke support to pass through the annular shell.

The beneficial effects of the above technical scheme are that: through mobile device, make a cigarette support and annular atomizing device relative movement, annular atomizing device can only set up a small amount of atomizing nozzle, through a cigarette support and annular atomizing device's relative movement, realizes spraying perfuming to a whole cigarette, simple structure, with low costs, can also save spices.

Furthermore, the automatic cigarette flavoring device also comprises a rack, the moving device is a conveying belt or a conveying chain which is rotatably arranged on the rack, the cigarette support is fixed on the conveying belt or the conveying chain so as to circularly move along with the conveying belt or the conveying chain, and the annular atomizing device is fixed on the rack.

The beneficial effects of the above technical scheme are that: the moving device is a conveying belt or a conveying chain arranged on the support, the cigarette support is fixed on the conveying belt or the conveying chain to circularly move along with the conveying belt or the conveying chain, the annular atomizing device is fixed on the rack, and the cigarette support moves relative to the annular atomizing device through the operation of the conveying belt or the conveying chain.

Further, a plurality of cigarette supports are arranged and are evenly arranged at intervals along the conveying belt or the conveying chain.

The beneficial effects of the above technical scheme are that: a cigarette support is provided with a plurality ofly, and arranges along even interval of conveyer belt or transfer chain, makes things convenient for a cigarette automatic perfuming device to carry out perfuming to a plurality of cigarettes, improves perfuming efficiency.

Furthermore, the feeding pump comprises a driving motor for driving the feeding pump to act, the automatic cigarette flavoring device further comprises a controller connected with the driving motor, and the controller is used for controlling the driving motor to start and stop according to a set time interval.

The beneficial effects of the above technical scheme are that: the controller controls the driving motor to start and stop according to the set time interval, so that the feeding pump is only started when the cigarette is flavored, and is closed after flavoring is finished, raw materials are saved, and the cost is reduced.

Furthermore, the cigarette support comprises two supporting rods arranged at intervals, the top of each supporting rod is provided with the supporting groove, and the bottom of each supporting rod is provided with a connecting plate; the conveying chain is provided with a plurality of fixing plates, and the connecting plates are detachably and fixedly connected with the fixing plates through screws.

The beneficial effects of the above technical scheme are that: when in use, the distance between the support rods can be adjusted according to the length of the cigarette to be flavored, so that the cigarette support is used for supporting cigarettes with different lengths, and the applicability range of the automatic flavoring device for the cigarettes is expanded.

Further, a cigarette support includes the bracing piece that two intervals set up, and the top of each bracing piece all is provided with the support groove.

The beneficial effects of the above technical scheme are that: the cigarette support comprises two supporting rods arranged at intervals, and the top of each supporting rod is provided with the supporting groove, so that the cigarette support is simple in structure and convenient to process and manufacture.

Further, the supporting groove is a V-shaped groove.

The beneficial effects of the above technical scheme are that: the support groove is a V-shaped groove, so that cigarettes with different diameters can be supported, and the applicability range of the cigarette support is expanded.

Furthermore, one side of each of the two support grooves, which is opposite to the other side, is provided with a baffle plate, and the baffle plates are used for being matched with the end faces of the cigarettes in a blocking manner.

The beneficial effects of the above technical scheme are that: one side of backing on the back of the body in two support grooves is provided with the baffle respectively, and the baffle is used for cooperating with the terminal surface block of cigarette, prevents that a cigarette from axial displacement or breaking away from a cigarette support, causes the influence to a cigarette perfuming.

Furthermore, an annular flow channel is arranged in the annular shell, the inlet of each atomizing nozzle is communicated with the annular flow channel, a liquid inlet communicated with the annular flow channel is also arranged on the annular shell, and the liquid inlet is connected with the liquid inlet pipeline.

The beneficial effects of the above technical scheme are that: each atomizing nozzle is communicated with the liquid inlet pipeline through an annular flow passage in the annular shell, so that the atomizing nozzles are convenient to mount and are connected with the liquid inlet pipeline.

Drawings

FIG. 1 is a schematic structural diagram of an automatic flavoring device for cigarettes in the present invention;

FIG. 2 is a front view of an automatic flavoring device for cigarettes in accordance with the present invention;

FIG. 3 is a front sectional view of the frame, the transmission chain and the annular atomizing device of the automatic cigarette flavoring device;

FIG. 4 is a side cut-away view of the frame, the annular atomizing device, the first drive motor and the conveyor chain of the automatic cigarette flavoring device of the present invention;

figure 5 is a cross-sectional view of the annular atomizing device of the automatic cigarette flavoring device.

In the figure: 1. a feed pump; 2. a spice tank; 3. a frame; 3-1, supporting legs; 3-2, side plates; 4. a control box; 5. a cigarette holder; 5-1, supporting rods; 5-2, supporting grooves; 5-3, a baffle; 5-4, connecting plates; 6. an annular atomizing device; 6-1, an annular shell; 6-2, atomizing nozzles; 6-3, an annular flow passage; 6-4, liquid inlet; 7. a conveyor chain; 8. a fixing plate; 9. a first drive motor; 10. a drive wheel; 11. a rotating wheel; 12. a liquid inlet pipeline; 13. a liquid supply line; 14. and (5) cigarette making.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The features and properties of the present invention are described in further detail below with reference to examples.

An embodiment of the automatic cigarette flavoring device of the utility model is shown in figure 1, and comprises a frame 3, wherein the frame 3 comprises a peripheral side plate 3-2 and a supporting leg 3-1 fixed at the bottom of the side plate, and a mounting cavity is formed inside the peripheral side plate 3-2. The automatic cigarette perfuming device further comprises a moving device, which is arranged in the mounting cavity and is a transmission chain 7 in the embodiment. Specifically, as shown in fig. 3 and 4, a driving wheel 10 and a rotating wheel 11 are installed in the installation cavity, the transmission chain 7 is wound on the driving wheel 10 and the rotating wheel 11, a first driving motor 9 is further installed on the rear side of the rack 3, and the first driving motor 9 drives the driving wheel 10 to rotate, so that the transmission chain 7 rotates circularly.

As shown in fig. 1, 2 and 3, the automatic cigarette flavoring device further comprises a cigarette support 5, the cigarette support 5 is fixedly mounted on a conveying chain 7 and circularly moves along with the conveying chain 7, the cigarette support 5 comprises two supporting rods 5-1 arranged at intervals, the top of each supporting rod 5-1 is provided with a supporting groove 5-2, the two supporting grooves 5-2 are used for respectively supporting two ends of a cigarette 14, and the supporting grooves 5-2 are V-shaped grooves for supporting cigarettes 14 with different diameters. In order to prevent the cigarettes 14 to be flavored from axially moving or separating from the cigarette supports 5, the baffle plates 5-3 are respectively arranged on the opposite sides of the two support grooves 5-2, and the baffle plates 5-3 are used for being matched with the end faces of the cigarettes 14 in a blocking manner. In order to enable the cigarette support 5 to be used for supporting cigarettes 14 of different lengths, the bottom of each support rod 5-1 is provided with a connecting plate 5-4, and the connecting plates 5-4 are detachably and fixedly connected with the fixing plate 8 through screws, so that the distance between the two support rods 5-1 can be changed, and the cigarette support 5 can support the cigarettes 14 of different lengths.

As shown in figure 1, the automatic cigarette flavoring device further comprises a feeding pump 1, a spice storage tank 2 and an annular atomizing device 6. The fragrance reservoir 2 is a sealed container for storing fragrance liquid. The feeding pump 1 is a pressure pump, the feeding pump 1 is used for quantitatively transporting spices, and an inlet of the feeding pump 1 is communicated with the spice storage tank 2 through a liquid supply pipeline 13. The annular atomization device 6 comprises an annular shell 6-1 and an atomization nozzle 6-2 arranged on the annular shell, the annular shell 6-1 is fixed on the frame 3, as shown in fig. 5, in order to enable the cigarette holder 5 to pass through the annular shell 6-1, the lower part of the annular shell 6-1 is provided with an opening, namely, the annular shell 6-1 is a non-closed annular shell, or the annular shell 6-1 is not a circular annular shell. A plurality of atomizing nozzles 6-2 are uniformly arranged on the annular shell 6-1 at intervals along the circumferential direction, and in the embodiment, the number of the atomizing nozzles 6-2 is nineteen. In order to facilitate the installation of the atomizing nozzle 6-2, an annular flow channel 6-3 is arranged in the annular shell 6-1, the inlet of each atomizing nozzle 6-2 is communicated with the annular flow channel 6-3, a liquid inlet 6-4 communicated with the annular flow channel 6-3 is further arranged on the annular shell 6-1, and the liquid inlet 6-4 is connected with a liquid inlet pipeline 12. The outlets of the atomizing nozzles 6-2 face to the center of the annular shell 6-1, and a spraying space for spraying spice on the cigarettes 14 is formed by the outlets of the atomizing nozzles 6-2. After the spice in the spice storage tank 2 enters the feeding pump 1 through the liquid supply pipeline 13, the feeding pump 1 quantitatively transports the spice to the annular flow channel 6-3 through the liquid inlet pipeline 12, the spice enters the atomizing nozzle 6-2 through the annular flow channel 6-3, and the atomizing nozzle 6-2 sprays and aromatizes the cigarettes 14 to finish the automatic aromatizing of the cigarettes 14.

In addition, as shown in fig. 1, 2 and 3, in order to realize the automatic flavoring of a plurality of cigarettes 14, a plurality of cigarette supports 5 are provided and are uniformly arranged at intervals along the conveying chain 7.

Furthermore, in order to save on flavour, the dosing pump 1 is only activated when flavouring a cigarette 14. Specifically, feed pump 1 is including the second driving motor that is used for driving feed pump 1 action, a cigarette automatic perfuming device still includes the controller, the right side of frame is provided with control box 4, the controller is installed in control box 4, the controller is connected with second driving motor, be used for controlling second driving motor and open according to the time interval that sets for, make feed pump 1 only start when perfuming cigarette 14, close after the perfuming, when next cigarette 14 reachs atomizing nozzle 6-2 department, feed pump 1 restarts again. The controller is also connected to the first drive motor 9 for varying the rotational speed of the first drive motor 9.

When the automatic cigarette flavoring device is used, the perfume liquid in the perfume storage tank 2 enters the feeding pump 1 through the liquid supply pipeline 13, the feeding pump 1 transports the perfume to the atomizing nozzle 6-2 through the liquid inlet pipeline 12, and the atomizing nozzle 6-2 uniformly sprays the perfume to the cigarette 14 in multiple directions to finish the automatic flavoring of the cigarette 14. The cigarette 14 is uniformly sprayed with spice by the automatic cigarette perfuming device, so that the consistency of the perfuming effect of the cigarette 14 is ensured.

It should be noted that the atomizing nozzle 6-2 adopted in the utility model sprays mist, i.e. tiny liquid drops, the speed of the liquid drops is very slow, the acting force on the cigarette is small, and the cigarette is not separated from the cigarette support 5, moreover, in the utility model, the lower part of the annular shell 6-1 is provided with an opening, the atomizing nozzle 6-2 is not arranged, one atomizing nozzle 6-2 which exerts upward acting force on the cigarette support is omitted, under the action of other atomizing nozzles 6-2, the acting force on the whole cigarette is downward, the structure enables the cigarette to be more stably placed in the support groove 5-2, and the cigarette is ensured not to be separated from the cigarette support 5 in the spraying and perfuming process. Preferably, the atomizing nozzle 6-2 is an atomizing nozzle capable of adjusting the size of atomized particles.

In other embodiments of the automatic cigarette flavoring device, the number of the atomizing nozzles is not nineteen, but two, three, four or more according to the size of the annular shell and the requirement of cigarette spraying flavoring.

In other embodiments of the automatic cigarette flavoring device, the annular housing is not provided with an annular flow passage, each atomizing nozzle is arranged on the side wall of the annular housing and penetrates out of the annular housing, and the inlet of each atomizing nozzle is connected with a liquid inlet pipeline.

In other embodiments of the cigarette automatic flavoring device, the side of the two supporting grooves opposite to each other is not provided with a baffle.

In other embodiments of the automatic cigarette flavoring device, the supporting groove is a U-shaped groove.

In other embodiments of the automatic cigarette flavoring device, the bottom of the supporting rod is not provided with a connecting plate, the conveying chain is not provided with a fixed plate, and the supporting rod is directly welded on the conveying chain; or the bottoms of the two support rods are fixedly connected through the connecting plate, the cigarette support is detachably fixed on the conveying chain through the connecting plate, and at the moment, the distance between the two support rods is not adjustable and only the cigarettes with specific length can be supported.

In other embodiments of the automatic cigarette flavoring device, the cigarette support is not in a structural form of two support rods arranged at intervals, but two support rods which are fixedly connected in the middle and are in a scissor-fork shape, and the top ends of the support rods are still provided with support grooves.

In other embodiments of the automatic cigarette flavoring device, the automatic cigarette flavoring device does not include a controller, but the distance between the cigarette supports is set to be smaller, so that the cigarettes continuously pass through the annular atomizing device, the feeding pump continuously operates after the cigarettes are initially started, and the feeding pump is closed until all the cigarettes finish flavoring.

In other embodiments of the automatic cigarette flavoring device, the moving device is a conveyor belt rotatably mounted on the frame, and the cigarette holder is fixedly mounted on the conveyor belt.

In other embodiments of the automatic cigarette flavoring device, only one cigarette support is provided, and the automatic cigarette flavoring device can only flavor one cigarette at a time.

In other embodiments of the automatic cigarette flavoring device, the moving device is not a conveyor belt or a conveyor chain, but comprises a lead screw, a moving block in threaded connection with the lead screw, and a guide mechanism for guiding the moving block, so as to form a lead screw nut mechanism, a cigarette support is fixed on the moving block, the cigarette support is made to move back and forth by rotating the lead screw, when the moving block moves forward, the cigarette support passes through an annular atomizing device, an atomizing nozzle aromatizes cigarettes, after the cigarettes are aromatized, the cigarettes are taken down, the next cigarette to be aromatized is placed and the moving block is made to move reversely, the atomizing nozzle aromatizes the cigarettes to be aromatized, after the aromatizing, the cigarettes are taken down, the next cigarette to be aromatized is placed and the moving block is made to move forward, and the operations are repeated; or when the moving block moves forwards, the cigarette support passes through the annular atomizing device, the atomizing nozzle performs perfuming on the cigarettes, after the cigarettes are perfumed, the cigarettes are taken down and the moving block moves reversely, after the cigarette support returns to the initial position, the next cigarette to be perfumed is placed, and the operation is repeated.

In other embodiments of the automatic cigarette flavoring device, the moving device is not fixedly connected with the cigarette support but fixedly connected with the annular atomizing device, the moving device is a piston rod of an air cylinder or a hydraulic cylinder, the annular atomizing device is fixedly connected with the piston rod and is installed on the rack in a guiding manner, the cigarette support is installed on the rack, and the annular atomizing device can move relative to the cigarette support.

In other embodiments of the cigarette automatic flavoring device, the cigarette automatic flavoring device does not comprise a moving device, the lower part of the annular shell is not provided with an opening, the length of the annular shell is longer, the annular shell can cover the whole cigarette, the supporting grooves of the cigarette support are respectively positioned at two axial ends of the annular shell, and the whole cigarette is sprayed and flavored by arranging a plurality of rows of atomizing nozzles on the annular shell.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.

Claims (10)

1. An automatic cigarette flavoring device is characterized by comprising a spice storage tank (2) and a feeding pump (1), wherein the inlet of the feeding pump (1) is communicated with the spice storage tank (2) through a liquid supply pipeline (13); the automatic cigarette flavoring device also comprises a cigarette support (5) and an annular atomizing device (6), wherein the cigarette support (5) is provided with two supporting grooves (5-2) for respectively supporting two ends of a cigarette (14); the annular atomizing device (6) comprises an annular shell (6-1) and atomizing nozzles (6-2) arranged on the annular shell (6-1), the atomizing nozzles (6-2) are at least two and are uniformly distributed along the circumferential direction of the annular shell (6-1), the inlets of the atomizing nozzles (6-2) are communicated with the outlets of the feeding pumps (1) through liquid inlet pipelines (12), the outlets of the atomizing nozzles (6-2) face the center of the annular shell (6-1), and a spraying space for spraying spices to the cigarettes (14) is formed by enclosing the outlets of the atomizing nozzles (6-2).

2. The automatic cigarette perfuming device according to claim 1, characterized in that the automatic cigarette perfuming device further comprises a moving device which is fixedly connected with the cigarette holder (5) or the annular atomizing device (6) to drive the cigarette holder (5) or the annular atomizing device (6) to move; the lower part of the annular shell (6-1) is provided with an opening for the smoke support bracket (5) to pass through the annular shell (6-1).

3. An automatic cigarette perfuming device according to claim 2, characterized in that it further comprises a frame (3), said moving device is a conveyor belt or a conveyor chain (7) rotatably mounted on the frame (3), the cigarette holder (5) is fixed on the conveyor belt or the conveyor chain (7) so as to move cyclically with the conveyor belt or the conveyor chain (7), and the annular atomizing device (6) is fixed on the frame (3).

4. Automatic perfuming device for cigarettes according to claim 3, characterized in that a plurality of cigarette holders (5) are provided and are evenly spaced along the conveyor belt or chain (7).

5. An automatic flavoring device for cigarette according to claim 4, characterized in that the feeding pump (1) comprises a driving motor for driving the feeding pump (1) to operate, the automatic flavoring device for cigarette further comprises a controller connected with the driving motor, and the controller is used for controlling the driving motor to start and stop according to a set time interval.

6. An automatic flavoring device for cigarette according to any one of claims 3-5, characterized in that the cigarette holder (5) comprises two support rods (5-1) arranged at intervals, the top of each support rod (5-1) is provided with the support groove (5-2), and the bottom of each support rod (5-1) is provided with a connecting plate (5-4); the conveying chain (7) is provided with a plurality of fixing plates (8), and the connecting plates (5-4) are detachably and fixedly connected with the fixing plates (8) through screws.

7. An automatic flavoring device for cigarette according to claim 1 or 2, characterized in that the cigarette holder (5) comprises two support rods (5-1) arranged at intervals, and the top of each support rod (5-1) is provided with the support groove (5-2).

8. An automatic perfuming device for cigarette according to any one of claims 1-5, characterized in that the supporting groove (5-2) is a V-shaped groove.

9. An automatic flavoring device for cigarette according to any of claims 1-5, characterized in that the opposite sides of the two supporting grooves (5-2) are respectively provided with a baffle (5-3), and the baffles (5-3) are used for stopping and matching with the end faces of the cigarette.

10. An automatic flavoring device for cigarette according to any one of claims 1-5, characterized in that an annular flow channel (6-3) is provided in the annular housing (6-1), the inlet of each atomizing nozzle (6-2) is communicated with the annular flow channel (6-3), a liquid inlet (6-4) communicated with the annular flow channel (6-3) is further provided on the annular housing (6-1), and the liquid inlet (6-4) is connected with the liquid inlet pipe (12).

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