CN115041409B - Double-air-duct tea winnowing machine - Google Patents
Double-air-duct tea winnowing machine Download PDFInfo
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- CN115041409B CN115041409B CN202210652900.9A CN202210652900A CN115041409B CN 115041409 B CN115041409 B CN 115041409B CN 202210652900 A CN202210652900 A CN 202210652900A CN 115041409 B CN115041409 B CN 115041409B
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- blanking
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- 241001122767 Theaceae Species 0.000 title claims abstract description 84
- 239000000463 material Substances 0.000 claims abstract description 53
- 238000012216 screening Methods 0.000 claims abstract description 40
- 230000005540 biological transmission Effects 0.000 claims description 17
- 238000007599 discharging Methods 0.000 claims description 6
- 238000009826 distribution Methods 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims 3
- 238000000926 separation method Methods 0.000 abstract description 8
- 239000012535 impurity Substances 0.000 abstract description 3
- 239000004576 sand Substances 0.000 abstract description 2
- 210000001624 hip Anatomy 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000012546 transfer Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
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- 238000007789 sealing Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
- B07B9/02—Combinations of similar or different apparatus for separating solids from solids using gas currents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
- B07B11/02—Arrangement of air or material conditioning accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
- B07B11/06—Feeding or discharging arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B4/00—Separating solids from solids by subjecting their mixture to gas currents
- B07B4/02—Separating solids from solids by subjecting their mixture to gas currents while the mixtures fall
Abstract
The application discloses a double-air-duct tea winnowing machine, which comprises a first-stage air box, wherein an axial flow fan constructs a screening air field vertical to the blanking direction in the first-stage air box, and a feed hopper is arranged at the top of the first-stage air box; the secondary air box is connected to the bottom of the primary air box, and a screening wind field in a vertical blanking direction is built in the secondary air box through a centrifugal fan arranged on one side of the secondary air box; the blanking collecting and conveying device is used for collecting and conveying blanking screened by a screening wind field in the first-stage wind box to a starting end of the blanking direction of the second-stage wind box; the bottom of the secondary air box is provided with a screening output device. According to the application, the material can be subjected to first air separation by the axial flow fan, and the material entering the secondary air box is subjected to second air separation under the action of the air flow of the centrifugal fan, so that the multifunctional air separation operation of removing impurities such as light yellow flakes and sand and stones is finished, and the air separation efficiency is improved.
Description
Technical Field
The application relates to the technical field of material separation, in particular to a double-air-duct tea winnowing machine.
Background
As tea is taken as a drink which can be directly brewed by boiled water, the safety and sanitation of the tea quality are strictly required, and the improvement of the whole quality of the tea production technical level is the primary problem which we have to solve. Wherein, tealeaves selection by winnowing machinery is an important equipment in the processing of tealeaves refining, and its separation effect will directly influence final product quality and product value, consequently, has important realistic meaning to promoting tealeaves production technology's whole level through improving the selection by winnowing efficiency of tealeaves selection by winnowing machine.
Nowadays, on the support of the prior art, a plurality of mechanical devices for tea winnowing appear on the market, but because the theoretical research of tea winnowing is relatively few at home and abroad at present, the design of tea winnowing machinery and the operation of tea winnowing in actual production are mainly based on traditional experience, so the overall quality of tea winnowing level is lower, and the ideal requirement is not met.
Disclosure of Invention
The application aims to provide a double-air-duct tea winnowing machine, which aims to solve the technical problem that impurities in tea are difficult to realize ideal separation in the prior art.
In order to solve the technical problems, the application specifically provides the following technical scheme:
a double-duct tea winnowing machine, comprising:
the screening device comprises a first-stage air box, a screening air field perpendicular to the blanking direction is built in the first-stage air box through an axial flow fan arranged on one side of the first-stage air box, a feeding hopper is arranged at the top of the first-stage air box, and the feeding hopper is arranged at the top of the first-stage air box far away from the axial flow fan;
the secondary air box is connected to the bottom of the primary air box, and a screening wind field in a vertical blanking direction is built in the secondary air box through a centrifugal fan arranged on one side of the secondary air box;
the blanking collecting and conveying device is arranged at the joint of the primary air box and the secondary air box and is used for collecting and conveying blanking screened by a screening air field in the primary air box to the starting end of the blanking direction of the secondary air box;
and a screening output device is arranged at the bottom of the secondary air box.
As a preferable scheme of the application, a plurality of first-stage tea baffle plates are arranged in the first-stage bellows, blanking channels are formed between two adjacent first-stage tea baffle plates, and the blanking collecting and conveying device is arranged below the plurality of first-stage tea baffle plates;
the inside of second grade fan housing is provided with a plurality of second grade and keeps off the tea board, and adjacent two form between the second grade keeps off the tea board and sieve the material passageway, sieve material output device sets up a plurality of second grade keeps off the tea board below on the diapire of second grade fan housing.
As a preferable scheme of the application, the blanking collecting and conveying device comprises a plurality of receiving trough bodies which are connected in sequence, and the feed inlets of the plurality of receiving trough bodies are in one-to-one correspondence with the plurality of blanking channels;
the screen material output device comprises a plurality of discharging slots which are sequentially connected, and the discharging slots correspond to the screen material channels one by one.
As a preferable scheme of the application, the bottom of the blanking collecting and conveying device is provided with a conveying device, the conveying device comprises a conveying belt, a transmission rod and a driving motor, and the driving motor drives the conveying belt to drive by driving the transmission rod to collect and convey the blanking screened by the screening wind field in the primary wind box to the starting end of the blanking direction of the secondary wind box;
the two ends of the transmission rod are respectively provided with a transmission roller, and the conveying belt is connected to the transmission rod between the two transmission rollers.
As a preferable scheme of the application, rotating shafts are arranged between the two ends of the first-stage tea baffle plate and the second-stage tea baffle plate, and the first-stage tea baffle plate is rotationally connected to the inner wall of the first-stage bellows through the rotating shafts;
the secondary tea baffle is rotationally connected to the inner wall of the secondary air box through the rotating shaft.
As a preferable scheme of the application, a screening wind field vertical to the blanking direction is constructed in the first-stage wind box by the axial flow fan, and the screening wind field comprises an upper wind cavity positioned on a plurality of first-stage tea baffle plates and a lower wind cavity positioned between the plurality of first-stage tea baffle plates and the blanking collecting and conveying device;
the end part of the first-stage bellows, which is far away from the axial flow fan, is provided with an air inlet, and the feed hopper is installed at the top of the first-stage bellows, which is close to the air inlet.
As a preferable scheme of the application, a material transferring opening is arranged at the bottom of the material receiving groove body, an opening and closing door assembly for opening and closing the material transferring opening is arranged below the material receiving groove body, and the opening and closing door assembly is used for sequentially opening a plurality of material transferring openings and closing the previous material transferring opening while opening the next material transferring opening.
As a preferable scheme of the application, the opening and closing door assembly comprises a corner edge plate matched with the material transferring opening and a telescopic rod for driving the corner edge plate to be close to and far away from the material transferring opening, two ends of the corner edge plate are embedded into the inner wall of the primary air box, a guide groove for the corner edge plate to move up and down is formed in the inner wall of the primary air box, the telescopic rod is arranged in the guide groove, and the output end of the telescopic rod is connected with the end part of the corner edge plate.
As a preferable mode of the application, the longitudinal section of the corner edge plate is an obtuse triangle, and the length of one waist is far longer than that of the other waist;
the plane formed by the longer waist of the corner edge plate faces the air inlet.
As a preferable scheme of the application, an air quantity adjusting component is arranged at the air inlet and is used for adjusting the air quantity distribution of the axial flow fan in the upper air cavity and the lower air cavity.
Compared with the prior art, the application has the following beneficial effects:
according to the application, the first winnowing can be carried out on the materials through the axial flow fan, the obtained winnowed tea materials are conveyed to the secondary air box, and the materials entering the secondary air box are subjected to the second winnowing under the action of the airflow of the centrifugal fan, so that the multifunctional winnowing operation of removing inclusions such as light yellow flakes and sand and stones is finished, and the aim of improving the winnowing efficiency is fulfilled.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those of ordinary skill in the art that the drawings in the following description are exemplary only and that other implementations can be obtained from the extensions of the drawings provided without inventive effort.
FIG. 1 is a schematic diagram of a dual duct tea winnowing machine according to an embodiment of the present application;
FIG. 2 is a schematic view of a longitudinal section of a primary air box and a secondary air box according to an embodiment of the present application;
FIG. 3 is a schematic view of a primary air box and a secondary air box on the air inlet side according to an embodiment of the present application;
fig. 4 is a schematic bottom view of a blanking collecting and conveying device according to an embodiment of the present application;
FIG. 5 is a schematic view of a drop conveyer according to an embodiment of the present application;
fig. 6 is a schematic bottom view of the blanking collecting and conveying device with the opening and closing door assembly shown in fig. 5 according to the embodiment of the present application; the method comprises the steps of carrying out a first treatment on the surface of the
FIG. 7 is a schematic view of the structure of the corner prism of FIG. 6 according to an embodiment of the present application.
Reference numerals in the drawings are respectively as follows:
1-a first-stage bellows; 2-a secondary air box; 3-an axial flow fan; 4-feeding hopper; 5-blanking, collecting and conveying device; 6, a screening output device; 7-a first-level tea baffle; 8-a second-stage tea baffle; 11-a receiving tank body; 12-a conveying device; 13-a discharge slot; 14-a centrifugal fan; 15-rotating shaft; 16-an upwind cavity; 17-a downwind cavity; 18-an air inlet; 19-a material transferring port; 20-a shutter assembly; 21-an air quantity adjusting component; 22-air guide pipes;
121-a conveyor belt; 122-transmission rod; 123-driving a motor; 124-drive rollers;
201-corner edge plates; 202-telescoping rod.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
As shown in fig. 1 to 7, the present application provides a double-duct tea winnowing machine, comprising:
the screening wind field vertical to the blanking direction is built in the first-stage wind box 1 through an axial flow fan 3 arranged on one side of the first-stage wind box 1, a feed hopper 4 is arranged at the top of the first-stage wind box 1, and the feed hopper 4 is arranged at the top of the first-stage wind box 1 far away from the axial flow fan 3;
the secondary air box 2 is connected to the bottom of the primary air box 1, and a screening wind field in a vertical blanking direction is built in the secondary air box 2 through a centrifugal fan 14 arranged on one side of the secondary air box 2;
the blanking collecting and conveying device 5 is arranged at the joint of the first-stage air box 1 and the second-stage air box 2, and the blanking collecting and conveying device 5 is used for collecting and conveying blanking screened by a screening air field in the first-stage air box 1 to the beginning end of the blanking direction of the second-stage air box 2;
the bottom of the secondary air box 2 is provided with a screening output device 6.
When the application works specifically, tea leaves to be winnowed are thrown into the first-stage air box 1 through the feed hopper 4, then the air field built in the first-stage air box 1 through the axial flow fan 3 carries out winnowing on the tea leaves entering the air field, the process is coarse screening, dust is accumulated near the axial flow grading 3 in the process, impurities with larger mass such as stones are accumulated at the bottom of the first-stage air box 1 opposite to the feed hopper 4, and the coarse screened tea leaves are distributed between the two, and the area just covers the blanking collecting and conveying device 5. The tea leaves passing through the blanking collecting and conveying device 5 enter the secondary air box 2, and as the secondary air box 2 adopts the air curtain air field constructed by the centrifugal fan 14, the blanking collecting and conveying device 5 is required to convey the screened tea leaves to the connection outlet close to the centrifugal fan 14 and the secondary air box 2 for blanking, and the screened tea leaves are screened again by the air field in the secondary air box 2, so that the screened tea leaves fall into the screening output device 6.
Further, in order to improve the winnowing quality and efficiency of tea in the winnowing process, a plurality of first-stage tea baffle plates 7 are arranged in the first-stage bellows 1, a screening channel is formed between two adjacent first-stage tea baffle plates 7, and a blanking collecting and conveying device 5 is arranged below the plurality of first-stage tea baffle plates 7.
The inside of second grade wind box 2 is provided with a plurality of second grade and keeps off tea board 8, forms the sieve material passageway between two adjacent second grade and keeps off tea board 8, and sieve material output device 6 sets up on the diapire of second grade wind box 2 of a plurality of second grade fender tea boards 8 below.
The blanking collecting and conveying device 5 comprises a plurality of receiving groove bodies 11 which are sequentially connected, and the feed inlets of the plurality of receiving groove bodies 11 are in one-to-one correspondence with the plurality of screening channels.
The screen material output device 6 comprises a plurality of discharging slots 13 which are sequentially connected, and the discharging slots 13 are in one-to-one correspondence with the screen material channels.
The bottom of blanking collection conveyor 5 is provided with conveyor 12, and conveyor 12 includes conveyer belt 121, transfer line 122 and driving motor 123, and driving motor 123 rotates through driving transfer line 122 and drives conveyer belt 121 transmission and collect the blanking after screening wind field screening in the one-level bellows 1 and carry the beginning of blanking direction to second grade bellows 2.
The transmission rollers 124 are disposed at both ends of the transmission rod 122, and the conveyor belt 121 is connected to the transmission rod 122 between the two transmission rollers 124.
Further, because tea leaves theoretically move in a parabolic manner in the tea leaf winnowing process, the rotating shafts 15 are arranged between the two ends of the first-stage tea baffle 7 and the second-stage tea baffle 8, the first-stage tea baffle 7 is rotationally connected to the inner wall of the first-stage air box 1 through the rotating shafts 15, and the angles of the first-stage tea baffle 7 and the second-stage tea baffle 8 relative to the first-stage air box 1 and the second-stage air box 2 are adjustable, so that the feeding port of the receiving groove 11 can be matched with the winnowing motion state of the tea leaves in the upper air cavity 16, and therefore ideal sorting results are obtained in the receiving groove 11.
The secondary tea baffle 8 is rotatably connected to the inner wall of the secondary air box 2 through a rotating shaft 15.
In the application, the screening wind field for further constructing the axial flow fan 3 in the first-stage wind box 1 in the vertical blanking direction comprises an upper wind cavity 16 positioned on the plurality of first-stage tea baffles 7 and a lower wind cavity 17 positioned between the plurality of first-stage tea baffles 7 and the blanking collecting and conveying device 5.
The end part of the first-stage bellows 1, which is far away from the axial flow fan 3, is provided with an air inlet 18, and the feed hopper 4 is arranged at the top of the first-stage bellows 1, which is close to the air inlet 18.
Further, the double-wind-to-tea winnowing machine provided by the application can perform finer tea winnowing, specifically, the bottom of the receiving tank body 11 is provided with the material transferring opening 19, the lower part of the receiving tank body 11 is provided with the opening and closing door assembly 20 for opening and closing the material transferring opening 19, and the opening and closing door assembly 20 is used for sequentially opening a plurality of material transferring openings 19 and closing the previous material transferring opening 19 while opening the next material transferring opening 19.
That is, the material transfer openings 19 of the material receiving groove bodies 11 are sequentially opened and closed through the opening and closing door assemblies 20, so that tea leaves in the material receiving groove bodies 11 sequentially fall into the secondary air boxes 2, independent secondary air boxes 2 of the tea leaves in each material receiving groove body 11 are air-separated, and fine air separation operation is achieved.
The opening and closing door assembly 20 comprises a corner edge plate 201 matched with the material transferring opening 19 and a telescopic rod 202 for driving the corner edge plate 201 to approach and depart from the material transferring opening 19, two ends of the corner edge plate 201 are embedded into the inner wall of the primary bellows 1, a guide groove for the corner edge plate 201 to move up and down is formed in the inner wall of the primary bellows 1, the telescopic rod 202 is arranged in the guide groove, and the output end of the telescopic rod 202 is connected with the end portion of the corner edge plate 201.
The longitudinal section of the corner edge plate 201 is in an obtuse triangle shape, and the length of one waist is far longer than that of the other waist; the plane of the corner flaps 201 formed by the longer waists is directed towards the air inlet 18 for the purpose of guiding the wind field in the downwind chamber 17.
Further, in the application, the air quantity adjusting component 21 is arranged at the air inlet 18, and the air quantity adjusting component 21 is used for adjusting the air quantity distribution of the upper air cavity 16 and the lower air cavity 17 of the axial flow fan 3, so that when the angular prism 201 needs to be matched with the material transferring port 19 to seal the material transferring port 19, the air quantity adjusting component 21 reduces the near air inlet of the upper air cavity 16, and the air quantity of the upper air cavity 16 is reduced, so that the air quantity of the lower air cavity 17 enters the upper air cavity 16 through the material transferring port 19, thereby generating an upward winnowing cleaning effect on tea leaves entering the material receiving groove 11, avoiding the error that the winnowing tea leaves in the upper air cavity 16 fall into the material receiving groove 11 due to incomplete winnowing formed by bonding, and avoiding the tea leaves accumulating at the material transferring port 19, thereby enabling the angular prism 201 to quickly seal the material transferring port 19 and avoiding the broken tea leaves caused by clamping columns when being closed. When the angular prism 201 completes the closing of the material transfer opening 19, the air quantity adjusting component 21 is closed or reduces the air quantity of the lower air cavity 17. The windward cavity 16 enters a normal winnowing mode, and in an initial state, the angular prism 201 is in sealing connection with the material transfer port 19.
When the efficient coarse screening is needed, the angular prism 201 can be directly opened in the initial screening state, that is, the material transferring opening 19 is always in a state of blanking to the secondary air box 2, at this time, the air field in the upper air cavity 16 performs primary screening on tea, and the lower air cavity 17 performs secondary screening on the tea after primary screening.
The front part and the tail part of the secondary air box 2 are fixed through a first movable frame and a second movable frame, the front end of the secondary air box 2 is provided with an air guide pipe, the air guide pipe is fixed at the front end of the secondary air box 2 through the frame and is connected with the secondary air box 2, and a centrifugal fan 14 is arranged in the air guide pipe.
The driving motor 123 is a three-phase asynchronous alternating current motor, the specification is YD112M-6, the rated power is 2.2KW, and the terminal output rotating speed is 960 (r/min).
The axial flow fan is a T35-11 type axial flow fan, the specification is T35-1-2.8, the output rotating speed is 2900 (r/min), the air quantity is 3202m3/h, the model of the matched motor is YSF-6300, and the rated power is 0.25KW.
The centrifugal fan is 4-72 type centrifugal fan, the specification is 4-72-2.8A, the output rotating speed is 2900 (r/min), the air quantity is 1131-2356m3/h, the matched motor model is Y90S-2, and the rated power is 1.5KW.
The conveyor belt adopts a gray PU plane conveyor belt, the material has the characteristics of oil resistance, water washing resistance and cutting resistance, the belt body is transparent and clean, no mould and smell are generated, and the conveyor belt can be directly contacted with food.
The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application, the scope of which is defined by the claims. Various modifications and equivalent arrangements of this application will occur to those skilled in the art, and are intended to be within the spirit and scope of the application.
Claims (7)
1. The utility model provides a two wind channel tealeaves air separator which characterized in that includes:
the screening device comprises a first-stage air box (1), wherein a screening wind field in a vertical blanking direction is built in the first-stage air box (1) through an axial flow fan (3) arranged on one side of the first-stage air box (1), a feed hopper (4) is arranged at the top of the first-stage air box (1), and the feed hopper (4) is arranged at the top of the first-stage air box (1) far away from the axial flow fan (3);
the secondary air box (2) is connected to the bottom of the primary air box (1), and a screening wind field in the vertical blanking direction is built in the secondary air box (2) through a centrifugal fan (14) arranged on one side of the secondary air box (2);
the blanking collecting and conveying device (5) is arranged at the joint of the primary air box (1) and the secondary air box (2), and the blanking collecting and conveying device (5) is used for collecting and conveying blanking screened by a screening air field in the primary air box (1) to the starting end of the blanking direction of the secondary air box (2);
the bottom of the secondary air box (2) is provided with a screening output device (6);
a plurality of first-stage tea blocking plates (7) are arranged in the first-stage bellows (1), blanking channels are formed between two adjacent first-stage tea blocking plates (7), and the blanking collecting and conveying device (5) is arranged below the plurality of first-stage tea blocking plates (7);
a plurality of secondary tea baffle plates (8) are arranged in the secondary air box (2), a screening channel is formed between two adjacent secondary tea baffle plates (8), and a screening output device (6) is arranged on the bottom wall of the secondary air box (2) below the plurality of secondary tea baffle plates (8);
the blanking collecting and conveying device (5) comprises a plurality of receiving trough bodies (11) which are connected in sequence, and the feed inlets of the plurality of receiving trough bodies (11) are in one-to-one correspondence with the plurality of blanking channels;
the screening output device (6) comprises a plurality of discharging slots (13) which are sequentially connected, and the discharging slots (13) are in one-to-one correspondence with the screening channels;
the bottom of the receiving trough body (11) is provided with a material transferring opening (19), and the lower part of the receiving trough body (11) is provided with an opening and closing door assembly (20) for opening and closing the material transferring opening (19), and the opening and closing door assembly (20) is used for sequentially opening a plurality of the material transferring openings (19) and closing the previous material transferring opening (19) while opening the next material transferring opening (19).
2. The double-air-duct tea winnowing machine according to claim 1, wherein a conveying device (12) is arranged at the bottom of the blanking collecting and conveying device (5), the conveying device (12) comprises a conveying belt (121), a transmission rod (122) and a driving motor (123), and the driving motor (123) drives the conveying belt (121) to drive through driving the transmission rod (122) to collect and convey blanking screened by screening wind fields in the primary wind box (1) to a starting end of the blanking direction of the secondary wind box (2);
both ends of the transmission rod (122) are provided with transmission rollers (124), and the conveying belt (121) is connected to the transmission rod (122) between the two transmission rollers (124).
3. The double-air-duct tea winnowing machine according to claim 1, wherein rotating shafts (15) are arranged between two ends of the primary tea baffle plate (7) and the secondary tea baffle plate (8), and the primary tea baffle plate (7) is rotatably connected to the inner wall of the primary air box (1) through the rotating shafts (15);
the secondary tea baffle (8) is rotatably connected to the inner wall of the secondary air box (2) through the rotating shaft (15).
4. A double-duct tea winnowing machine according to claim 1, characterized in that the axial flow fan (3) constructs a screening wind field vertical to blanking direction inside the primary air box (1) and comprises an upper wind cavity (16) positioned on a plurality of the primary tea baffle plates (7) and a lower wind cavity (17) positioned between a plurality of the primary tea baffle plates (7) and the blanking collecting and conveying device (5);
the end part of the primary air box (1) far away from the axial flow fan (3) is provided with an air inlet (18), and the feed hopper (4) is installed at the top part of the primary air box (1) close to the air inlet (18).
5. The double-air-duct tea winnowing machine according to claim 4, wherein the opening and closing door assembly (20) comprises a corner edge plate (201) matched with the material transferring opening (19) and a telescopic rod (202) for driving the corner edge plate (201) to be close to and far away from the material transferring opening (19), two ends of the corner edge plate (201) are embedded into the inner wall of the primary air box (1), a guide groove for the corner edge plate (201) to move up and down is formed in the inner wall of the primary air box (1), the telescopic rod (202) is arranged in the guide groove, and the output end of the telescopic rod (202) is connected with the end part of the corner edge plate (201).
6. A double-duct tea winnowing machine according to claim 5, characterized in that the longitudinal section of the corner plates (201) is of an obtuse triangle, and the length of one waist is much greater than the length of the other waist;
the plane of the corner edge plate (201) formed by the longer waist faces the air inlet (18).
7. The double-air-duct tea winnowing machine according to claim 4, wherein an air quantity adjusting assembly (21) is arranged at the air inlet (18), and the air quantity adjusting assembly (21) is used for adjusting air quantity distribution of the axial flow fan (3) in the upper air cavity (16) and the lower air cavity (17).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210652900.9A CN115041409B (en) | 2022-06-10 | 2022-06-10 | Double-air-duct tea winnowing machine |
| NL2033872A NL2033872B1 (en) | 2022-06-10 | 2022-12-29 | Tea winnowing machine with double air ducts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210652900.9A CN115041409B (en) | 2022-06-10 | 2022-06-10 | Double-air-duct tea winnowing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115041409A CN115041409A (en) | 2022-09-13 |
| CN115041409B true CN115041409B (en) | 2023-11-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210652900.9A Active CN115041409B (en) | 2022-06-10 | 2022-06-10 | Double-air-duct tea winnowing machine |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115041409B (en) |
| NL (1) | NL2033872B1 (en) |
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| Publication number | Publication date |
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| NL2033872B1 (en) | 2023-12-18 |
| CN115041409A (en) | 2022-09-13 |
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