CN104286234B - A kind of full-automatic green tea production line - Google Patents

Abstract

The invention discloses a full-automatic green tea production line, which comprises green tea spreading equipment (1), degreening equipment (2), winnowing equipment (3), initial kneading equipment (4), microwave drying equipment (5), Re-kneading equipment (6), secondary drying equipment (7), fragrance-increasing equipment (8) and packaging equipment (9); air separation equipment (3) and primary kneading equipment (4) are passed through a vertical lifting device (10 ) and the elevator (11) with deblocking function are connected, between the primary kneading equipment (4) and the microwave drying equipment (5), between the re-kneading equipment (6) and the secondary drying equipment (7) through The vertical lifting device (10) is connected, and the other adjacent devices are connected through the lifting device (12). The invention can completely replace the traditional artificial tea frying, realizes the automatic production of green tea, and has the advantages of high production efficiency and high degree of automation.

Description

A fully automatic green tea production line

technical field

The invention relates to a production line, in particular to a fully automatic green tea production line, which belongs to the field of mechanical equipment.

Background technique

my country has a history of drinking tea for more than 4,700 years. Tea, cocoa and coffee are also known as the three major non-alcoholic beverages in the world today. With the progress of society, tea has rushed out of the country to the world, and is deeply loved by foreigners. Green tea is one of the main teas in China. It refers to the products made from the new leaves or buds of tea trees, without fermentation, and processed by typical processes such as greening, shaping, and drying. The color of its finished product, after brewing, the tea soup retains more of the green main tone of fresh tea leaves. Drinking green tea regularly can prevent cancer, lower blood fat and lose weight. With the increase of demand for tea, the traditional hand-made tea method has gradually been unable to meet the demand. In order to increase the output of green tea, people have invented various auxiliary tea-frying equipment, such as greening machine, kneading machine, microwave roasting machine and extraction machine. Fragrance machines, etc., but the existing green tea production technology still needs to be completed by man and machine, and the production efficiency still needs to be improved. It is urgent to develop a production line that can completely replace manual and automatic green tea processing.

Contents of the invention

The purpose of the present invention is to provide a full-automatic green tea production line, which can completely replace the traditional manual tea frying, realize full-automatic production of green tea, and has the advantages of high production efficiency and high degree of automation.

The technical solution of the present invention: a fully automatic green tea production line, including green tea spreading equipment, degreening equipment, winnowing equipment, primary kneading equipment, microwave drying equipment, re-kneading equipment, secondary drying equipment, and fragrance-increasing equipment connected in sequence and packaging equipment; air separation equipment and primary kneading equipment are connected through a vertical lifting device and a hoist with deblocking function, between primary kneading equipment and microwave drying equipment, between re-kneading equipment and secondary drying equipment It is connected by a vertical lifting device, and the rest of the adjacent equipment is connected by a lifting device.

In the aforementioned full-automatic green tea production line, the green tea spreading equipment includes a green spreading frame body, a feeding frame body, a first conveyor belt, a second conveyor belt and a third conveyor belt, the feeding frame body is inclined, and one end of the feeding frame body is connected to the green tea spreading frame. The top of the body is fixedly connected. The first roller group, the second roller group and the third roller group are arranged on the stand body from bottom to top. The feeding roller group is installed on the feeding frame body, and the first conveyor belt is wound. On the first roller group, the second conveyor belt is wound on the second roller group, and the third conveyor belt is wound on the third roller group and the feeding roller group; the first roller group and the third roller group pass through the chain Connection, the bottom of the booth body is provided with a first drive motor and a second drive motor, the first drive motor is connected with the second roller group through a chain, and the second drive motor is connected with the first roller group through a chain; the first There is a transfer belt machine under the conveyor belt, the output end of the transfer belt machine is connected to the lifting device, and the lifting device is connected to the finishing equipment; one side of the stand is equipped with a blower device, and the first idler group and the second idler An air supply device is provided between the groups, between the second roller group and the third roller group, and the blast device communicates with the air supply device. The air-drying of tea leaves can be accelerated by arranging an air blast device and an air supply device.

In the aforementioned full-automatic green tea production line, the air blowing device includes a first air blower and an air collecting box, the air collecting box is in the shape of a cone with a large bottom and a small top, and the bottom of the air collecting box communicates with the first air blower; the air supply device includes an air supply box and an air collecting box. Air supply holes, the air supply holes are evenly arranged on the top and bottom of the air supply box. At the connection port between the air supply box and the air collection box; the first conveyor belt, the second conveyor belt and the third conveyor belt have the same structure, and are all composed of metal gauze and S-shaped spring rods, and the S-shaped spring rods are evenly distributed on two layers of metal Between the gauze and the S-shaped spring rods, there are reinforcement rods at equal intervals; the idlers on the first idler group, the second idler group and the third idler group are all connected by linkage chains, and the reinforcement rods The two ends are fixedly connected with the linkage chain. By setting the deflector, the wind sent by the first blower can be concentrated and guided into the two air supply boxes, so that the wind will not be accumulated in the air collection box, and the wind sent by the first blower can be efficiently utilized. By using metal gauze and S-shaped spring bars to make the conveyor belt, it can not only ensure the wear resistance and durability of the conveyor belt, but also make it breathable and ventilated.

In the aforementioned full-automatic green tea production line, the de-enzyming equipment includes a de-enzyming equipment frame, a thermal insulation shell, a rotating drum, a guide vane, a steam generator, a flame nozzle and a central rotating shaft, the thermal insulation shell is fixed on the de-enzyming equipment frame, and the rotating drum Plugged into the heat preservation shell, the two ends of the rotating drum are respectively fixed with rollers. Two sets of load-bearing rollers are arranged on the frame of the finishing equipment. There is a roller driving motor, and the roller driving motor is connected to one of the rotating shafts carrying the roller through a reducer; the guide blade is welded on the inner wall of the rotating drum, and the guiding blade is arranged in a spiral shape, and the area between the heat preservation shell and the rotating drum is equipped with a flame Nozzle, fire nozzle is used to heat the rotating drum, the central rotating shaft is fixed on the axis of the rotating drum, the central rotating shaft is a hollow structure, the central rotating shaft is evenly distributed with steam injection holes, and one end of the central rotating shaft is connected to the air pipe and set on the greening equipment frame The steam generator on the body is connected; the outlet end of the rotating drum is provided with a centrifugal fan, and the bottom of the centrifugal fan is provided with a tea outlet. Through this compound de-enzyming equipment, the de-enzyming effect of tea can be improved.

In the aforementioned full-automatic green tea production line, the winnowing equipment includes a feed inlet, a second blower, a first inverted cone bellows, a second inverted cone bellows, a transitional bellows, a tea outlet, and a conveyor belt machine, and the first inverted cone bellows The shaped bellows and the second inverted conical bellows are arranged side by side, the bottom of the transitional bellows communicates with the top of the first inverted conical bellows and the second inverted conical bellows, the feed inlet is located on the side of the transition bellows, and the feed inlet is connected to the first The inverted conical bellows are connected, and the bottom of the first inverted conical bellows is provided with a second blower and tea outlet; the conveyor belt conveyor is arranged under the second inverted conical bellows, and the interior of the transitional bellows is provided with an arc deflector.

In the aforementioned fully automatic green tea production line, the air outlet of the second blower is provided with an inclined surface, and the inclined surface of the air outlet is provided with gauze; the bottom surface of the feed inlet is an inclined surface.

Compared with the prior art, the present invention replaces the traditional greening process by arranging greening equipment, and can quickly complete the greening work by setting the first conveyor belt, the second conveyor belt, the third conveyor belt, the air blast device and the air supply device. The conveyor belt specially designed in this case can not only ensure the service life of the greening equipment, but also improve the effect of greening. By arranging compound de-greening equipment, both flame roasting and steam roasting can make the color of the tea leaves after de-enzyming better. Through winnowing equipment, the bad tea and tea powder in the tea can be effectively and quickly removed to ensure the quality of the tea. In addition, the traditional manual transmission is replaced by the connection of various equipment through the lifting device, the traditional manual rolling is replaced by the kneading machine, the aroma of the tea can be enhanced by setting the aroma extractor, and the packaging machine can automatically pack the produced tea into bags, realizing The whole process does not require manual operation, fully automated production.

Description of drawings

Fig. 1 is the overall structural representation of the present invention;

Fig. 2 is the structural representation of spreading green equipment;

Fig. 3 is the structural representation of blower device and air supply device;

Fig. 4 is the structural representation of conveyor belt;

Fig. 5 is the structural representation of finishing equipment;

Fig. 6 is a schematic structural view of the greening equipment partially cut away;

Fig. 7 is the structural representation of winnowing equipment;

Fig. 8 is a schematic diagram of the internal structure of the winnowing equipment.

The marks in the attached drawings are: 1-greening equipment, 2-finishing equipment, 3-air separation equipment, 4-primary kneading equipment, 5-microwave drying equipment, 6-re-kneading equipment, 7-secondary drying equipment , 8- Titian equipment, 9- Packaging equipment, 10- Vertical lifting device, 11- Lifting machine with deblocking function, 12- Lifting device, 13- Green stand body, 14- Feeding frame body, 15- The first Conveyor belt, 16-second conveyor belt, 17-third conveyor belt, 18-first roller group, 19-second roller group, 20-third roller group, 21-feed roller group, 22-first drive Motor, 23-the second drive motor, 24-transfer tape machine, 25-blowing device, 26-air supply device, 27-the first blower, 28-air collection box, 29-air supply box, 30-air supply hole, 31-deflector, 32-metal gauze, 33-S-shaped spring rod, 34-reinforcing rod, 35-linkage chain, 36-insulation shell, 37-rotating drum, 38-guide vane, 39-steam generator, 40-flame nozzle, 41-central shaft, 42-roller, 43-loading roller, 44-centrifugal fan, 45-reducer, 46-steam injection hole, 47-roller drive motor, 48-feed inlet, 49- The second blower, 50-the first inverted cone bellows, 51-the second inverted cone bellows, 52-transitional bellows, 53-tea outlet, 54-conveyor belt machine, 55-curved deflector, 56-fixing equipment frame body.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings and embodiments, but not as a basis for limiting the present invention.

Embodiment of the present invention: as shown in Fig. 1, a kind of fully automatic green tea production line, comprises the spreading green equipment 1 that connects successively, finishing equipment 2, winnowing equipment 3, initial kneading equipment 4, microwave drying equipment 5, re-kneading equipment Equipment 6, secondary drying equipment 7, aroma enhancing equipment 8 and packaging equipment 9; air separation equipment 3 and primary kneading equipment 4 are connected through a vertical lifting device 10 and a hoist 11 with deblocking function, primary kneading equipment 4 It is connected with the microwave drying equipment 5, between the re-kneading equipment 6 and the secondary drying equipment 7 through a vertical lifting device 10, and the other adjacent equipments are connected through a lifting device 12.

As shown in Figure 2, the greening equipment 1 includes a greening frame body 13, a feeding frame body 14, a first conveyor belt 15, a second conveyor belt 16 and a third conveyor belt 17, the feeding frame body 14 is inclined, and one end of the feeding frame body 14 It is fixedly connected with the top of the spreading frame body 13, and the spreading green frame body 13 is provided with the first idler group 18, the second idler group 19 and the third idler group 20 in sequence from bottom to top, and the feeding frame body 14 is installed There is a feeding roller group 21, the first conveyor belt 15 is wound on the first roller group 18, the second conveyor belt 16 is wound on the second roller group 19, and the third conveyor belt 17 is wound on the third roller group 20 and the feeding tray On the roller group 21; the first roller group 18 and the third roller group 20 are connected by a chain, and the bottom of the stand body 13 is provided with a first drive motor 22 and a second drive motor 23, and the first drive motor 22 is connected by a chain It is connected with the second idler roller group 19, and the second drive motor 23 is connected with the first idler roller group 18 through a chain; a transfer belt machine 24 is provided under the first conveyor belt 15, and the output end of the transfer belt machine 24 is connected with the lifting device 12 , the lifting device 12 is connected with the greening equipment 2; one side of the stand body 13 is provided with a blower device 25, between the first roller group 18 and the second roller group 19, between the second roller group 19 and the third roller group An air supply device 26 is provided between the roller groups 20 , and the air blower device 25 communicates with the air supply device 26 .

As shown in Fig. 3 and Fig. 4, the blower device 25 comprises the first blower 27 and the wind collection box 28, the wind collection box 28 is a tapered shape with a large bottom and a small top, and the bottom of the wind collection box 28 communicates with the first blower 27; 26 comprises air supply box 29 and air supply hole 30, and air supply hole 30 is evenly arranged on the top surface and the bottom surface of air supply box 29, and two air supply boxes 29 all communicate with the side of wind collection box 28, and wind collection box 28 is provided with Two deflectors 31, deflectors 31 are respectively positioned at the joints of two air supply boxes 29 and the wind collection box 28; the structures of the first conveyor belt 15, the second conveyor belt 16 and the third conveyor belt 17 are the same, all made of Metal gauze 32 and S-shaped spring rods 33 are formed, and S-shaped spring rods 33 are evenly distributed between two layers of metal gauze 32, and reinforcing rods 34 are arranged at equal intervals between S-shaped spring rods 33; the first roller group 18. The idlers on the second roller set 19 and the third idler roller set 20 are all connected by linkage chains 35 , and both ends of the reinforcing rod 34 are fixedly connected with the linkage chains 35 .

As shown in Fig. 5 and Fig. 6, finishing equipment 2 comprises finishing equipment frame body 56, heat preservation shell 36, rotating drum 37, guide vane 38, steam generator 39, flame nozzle 40 and central rotating shaft 41, and heat preservation shell 36 is fixed on On the frame body 56 of the greening equipment, the rotary drum 37 is plugged in the heat preservation shell 36, and the two ends of the rotary drum 37 are respectively fixed with rollers 42, and two groups of bearing rollers 43 are arranged on the frame body 56 of the greening equipment, and the bearing rollers 43 are arranged on The bottom of the roller 42 is rollingly connected with the roller 42, and the finishing equipment frame body 56 is also provided with a roller driving motor 47, which is connected with the rotating shaft of one of the bearing rollers 43 through a reducer 45; the guide vane 38 is welded on the rotating drum On the inner wall of 37, the guide vane 38 is provided in a spiral shape, and the area between the heat preservation shell 36 and the rotating drum 37 is provided with a flame nozzle 40, and the flame nozzle 40 is used to heat the rotating drum 37, and the central shaft 41 is fixed on the rotating drum 37. On the axis of the shaft, the central shaft 41 is a hollow structure, the central shaft 41 is evenly distributed with steam injection holes 46, and one end of the central shaft 41 is connected with the steam generator 39 arranged on the frame body 56 of the greening equipment through a connecting air pipe; the rotating drum 37 The outlet end of the outlet is provided with a centrifugal fan 44, and the bottom of the centrifugal fan 44 is provided with a tea outlet. The bottom of the finishing equipment frame body 56 is provided with a blower and a gas pipeline, and the gas pipeline is connected with the flame nozzle 40, and the flame nozzle 40 ejects flames to bake the rotary drum 37.

As shown in Fig. 7 and Fig. 8, winnowing equipment 3 comprises feed inlet 48, second air blower 49, first inverted conical bellows 50, second inverted conical bellows 51, transition bellows 52, tealeaves outlet 53 and conveyor belt machine 54, the first inverted cone bellows 50 and the second inverted cone bellows 51 are arranged side by side, the bottom of the transition bellows 52 communicates with the tops of the first inverted cone bellows 50 and the second inverted cone bellows 51, and the feed port 48 Located on the side of the transition bellows 52, the feed port 48 communicates with the first inverted cone bellows 50, and the bottom of the first inverted cone bellows 50 is provided with a second blower 49 and a tea outlet 53; the conveyor belt machine 54 is arranged on the second Below the inverted cone air box 51 , an arc-shaped deflector 55 is arranged inside the transition air box 52 . The air outlet of the second blower 49 is provided with an inclined surface, and the inclined surface of the air outlet is provided with gauze; the bottom surface of the feeding port 48 is an inclined surface.

The primary kneading equipment 4, microwave drying equipment 5, re-kneading equipment 6, secondary drying equipment 7, fragrance-increasing equipment 8, packaging equipment 9, vertical lifting device 10, lifting device with deblocking function used in the above embodiments Both the machine 11 and the lifting device 12 can be obtained by purchasing, and the specific equipment specifications and models can be reasonably selected according to the processing capabilities of the greening equipment 1, the greening equipment 2 and the winnowing equipment 3.

Working principle of the present invention: pour the tea leaves onto the third conveyor belt 17, and the tea leaves will be transported to the edge of the third conveyor belt 17 by the action of the feeding roller group 21 and the third roller group 20, and the tea leaves will fall into the second conveyor belt 16, Then fall into the first conveyor belt 15 by the second conveyor belt 16, and the tea leaves are blown by the first air blower 27 for the air supply device 26 in the process of transportation on the conveyor belt, and the wind is ejected through the air supply holes 30, and the tea leaves on the upper conveyor belt are blown simultaneously. The bottom of the bottom and the top of the tea leaves on the lower conveyor belt, so as to ensure that the upper and lower sides of the tea leaves are blown by the wind at the same time, and the tea leaves are finally transported to the transfer tape machine 24 through the first conveyor belt 15, and the transfer tape machine 24 passes the tea leaves that have finished the green work through the first conveyor belt 15. The lifting device 12 is sent to the rotary drum 37 of the greening equipment 2, and the rotary drum 37 rotates under the drive of the roller drive motor 47, and the tea leaves roll along the guide blades 38 in the rotary drum 37 and are transported to the other end of the rotary drum 37. While the rotating drum 37 is rotating, the flame nozzle 40 sprays fire to bake the rotating drum 37, and the steam generator 39 sends the steam into the central rotating shaft 41 through the air pipe, and then sprays out from the steam injection hole 46 on the central rotating shaft 41 for baking. To roast tea leaves, the equipment with this structure can make the green tea leaves have a delicious color. The green tea leaves are discharged from the bottom of the centrifugal fan 44, and are sent to the feed port 48 of the winnowing device 3 through the vertical lifting device 10, and the tea leaves flow along the The inclined bottom surface of the feeding port 48 slides into the first inverted cone bellows 50, and through the action of the second blower 49 at the bottom of the first inverted cone bellows 50, the tea leaves and tea powder with poor quality will be blown up by the wind and flow along The curved deflector 55 enters the second inverted conical bellows 51, and is finally transported away by the conveying belt conveyor 54 at the bottom of the second inverted conical bellows 51, while high-quality tea falls into the air along the inclined metal mesh at the top of the second blower 49. The tea outlet 53 is sent to the initial kneading equipment 4 through the vertical lifting device 10 and the lifting machine 11 with deblocking function for the first kneading, and the kneaded tea is sent to the microwave drying equipment 5 through the lifting device 2 to complete the first kneading. first drying, and then kneading for the second time by re-kneading equipment 6, and the tea leaves after the second kneading are dried again by second drying equipment 7, and then dried and fragrant by scenting equipment 8, and finally passed through packaging The device is packaged.

Claims (4)

1. a full-automatic green tea production line, it is characterised in that: include stand green grass or young crops equipment (1) being sequentially connected with, the equipment that completes (2), Pneumatic separator (3), just rub equipment (4), microwave drying equipment (5), rub equipment (6) again, second drying apparatus (7), Titian set Standby (8) and packaging facilities (9)；Pneumatic separator (3) and just rubbing between equipment (4) by perpendicular lifting apparatus (10) and band solution The elevator (11) of block function connects, and just rubs between equipment (4) and microwave drying equipment (5), rubs equipment (6) and secondary again All connected by perpendicular lifting apparatus (10) between drying plant (7), all by lifting device (12) between remaining each neighbouring device Connect；The blue or green equipment (1) in described stand includes frame for spreading fresh tea leaf body (13), feeding support body (14), the first conveyer belt (15), the second conveyer belt And the 3rd conveyer belt (17) (16), feeding support body (14) is obliquely installed, one end of feeding support body (14) and frame for spreading fresh tea leaf body (13) Top fixing connect, frame for spreading fresh tea leaf body (13) is sequentially provided with from the bottom to top the first idler machining (18), the second idler machining (19) and 3rd idler machining (20), feeding support body (14) is provided with feeding idler machining (21), and the first conveyer belt (15) is wrapped in the first torr In roller group (18), the second conveyer belt (16) is wrapped on the second idler machining (19), and the 3rd conveyer belt (17) is wrapped in the 3rd torr In roller group (20) and feeding idler machining (21)；First idler machining (18) is connected by chain with the 3rd idler machining (20), stand green grass or young crops The bottom of support body (13) is provided with the first driving motor (22) and second and drives motor (23), and first drives motor (22) to pass through chain Bar and the second idler machining (19) connect, and second drives motor (23) to be connected by chain and the first idler machining (18)；First transmits The lower section of band (15) is provided with transhipment sealing-tape machine (24), and the outfan of transhipment sealing-tape machine (24) is connected with lifting device (12), carries Rise device (12) to be connected with the equipment of completing (2)；The side of frame for spreading fresh tea leaf body (13) is provided with air-blast device (25), the first idler machining (18) And between the second idler machining (19), between the second idler machining (19) and the 3rd idler machining (20), it is equipped with air-supply arrangement (26), Air-blast device (25) connects with air-supply arrangement (26)；Described air-blast device (25) includes the first aerator (27) and air collecting box (28), Air collecting box (28) is lower big little taper, and the bottom of air collecting box (28) connects with the first aerator (27)；Air-supply arrangement (26) Including wind pushing box (29) and wind pushing hole (30), wind pushing hole (30) is evenly arranged in end face and the bottom surface of wind pushing box (29), two Wind pushing box (29) all sides with air collecting box (28) connect, and are provided with two pieces of deflectors (31), deflector (31) in air collecting box (28) Lay respectively at the connector of two wind pushing box (29) and air collecting box (28)；Described first conveyer belt (15), the second conveyer belt (16) Identical with the structure of the 3rd conveyer belt (17), constituted by metal gauze (32) and S-shaped spring lever (33), S-shaped spring lever (33) It is distributed between double layer of metal gauze (32), and between S-shaped spring lever (33), is equidistantly provided with reinforcing bar (34)；First carrying roller All connected by linkage chain (35) between carrying roller on group (18), the second idler machining (19) and the 3rd idler machining (20), add It is connected Gu the two ends of bar (34) are fixing with linkage chain (35).

One the most according to claim 1 full-automatic green tea production line, it is characterised in that the equipment (2) that completes described in: includes killing Blue or green equipment support body (56), lagging casing (36), rotation cylinder (37), guide vane (38), steam generator (39), flame Mouth (40) and central rotating shaft (41), lagging casing (36) is fixed on and completes on equipment support body (56), rotates cylinder (37) and inserts Being connected in lagging casing (36), the two ends rotating cylinder (37) are installed with roller (42) respectively, and complete equipment support body (56) On be provided with 2 groups of carryings roller (43), carrying roller (43) is arranged on the lower section of roller (42) and rolls even with roller (42) Connecing, the equipment support body (56) that completes is additionally provided with idler wheel driving galvanic electricity machine (47), idler wheel driving galvanic electricity machine (47) passes through reductor (45) Rotating shaft with one of them carrying roller (43) is connected；Guide vane (38) is welded on the inwall rotating cylinder (37), guides Blade (38) is arranged in the shape of a spiral, and lagging casing (36) and the region rotated between cylinder (37) are provided with bocca (40), spray Nozzles (40) are used for heating rotation cylinder (37), and central rotating shaft (41) is fixed on the axis rotating cylinder (37), and center turns Axle (41) is hollow-core construction, and central rotating shaft (41) is evenly equipped with steam jetting hole (46), and one end of central rotating shaft (41) is passed through Connect trachea to be connected with being arranged on the steam generator (39) completed on equipment support body (56)；The port of export rotating cylinder (37) sets Centrifugal blower (44), the bottom of centrifugal blower (44) is had to be provided with tea export.

One the most according to claim 2 full-automatic green tea production line, it is characterised in that: described pneumatic separator (3) include into Material mouth (48), the second aerator (49), the first inverted cone bellows (50), the second inverted cone bellows (51), transition bellows (52), Tea export (53) and adhesive tape conveying machine (54), the first inverted cone bellows (50) and the second inverted cone bellows (51) are set up in parallel, The bottom of transition bellows (52) connects with the top of the first inverted cone bellows (50) and the second inverted cone bellows (51), charging aperture (48) Being located at the side of transition bellows (52), charging aperture (48) connects with the first inverted cone bellows (50), the first inverted cone bellows (50) Bottom be provided with the second aerator (49) and tea export (53)；Adhesive tape conveying machine (54) is arranged on the second inverted cone bellows (51) Lower section, transition bellows (52) are internal is provided with arc deflector (55).

One the most according to claim 3 full-automatic green tea production line, it is characterised in that: described second aerator (49) Air outlet is provided with inclined plane, and the inclined plane of air outlet is provided with gauze；The bottom surface of charging aperture (48) is inclined-plane.