CN108355964B - A hierarchical tea core for bright leaf air separator of tea - Google Patents

A hierarchical tea core for bright leaf air separator of tea Download PDF

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Publication number
CN108355964B
CN108355964B CN201810092446.XA CN201810092446A CN108355964B CN 108355964 B CN108355964 B CN 108355964B CN 201810092446 A CN201810092446 A CN 201810092446A CN 108355964 B CN108355964 B CN 108355964B
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China
Prior art keywords
shell
outlets
tea
air guide
air
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CN201810092446.XA
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Chinese (zh)
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CN108355964A (en
Inventor
武传宇
曹淼龙
孙良
王荣扬
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Zhejiang University of Technology ZJUT
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Zhejiang University of Technology ZJUT
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Priority to CN201810092446.XA priority Critical patent/CN108355964B/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING 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
    • B07B7/00Selective separation of solid materials carried by, or dispersed in, gas currents
    • B07B7/08Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force
    • B07B7/086Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force generated by the winding course of the gas stream
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING 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
    • B07B11/00Arrangement of accessories in apparatus for separating solids from solids using gas currents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING 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
    • B07B11/00Arrangement of accessories in apparatus for separating solids from solids using gas currents
    • B07B11/02Arrangement of air or material conditioning accessories
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING 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
    • B07B11/00Arrangement of accessories in apparatus for separating solids from solids using gas currents
    • B07B11/06Feeding or discharging arrangements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING 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
    • B07B9/00Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets

Abstract

The invention discloses a grading tea core for a fresh tea leaf winnowing machine, which comprises an inverted hollow circular truncated cone shell, wherein the top of the shell is provided with a feeding hole, and the bottom of the shell is provided with a waste discharging hole; the air guide device comprises a shell, a plurality of air inlets and air guide rails, wherein a plurality of outlets are uniformly arranged on the circumferences of three different horizontal heights on the inner side wall of the shell respectively, a plurality of air inlets are uniformly arranged at the lower end of the shell, and the air inlets are positioned on the circumference of the same horizontal height; the three circular tracks which are in left-handed spiral descending are further included, and the circular tracks are arranged at three different horizontal heights where the outlets are located and are respectively communicated with six outlets on the same horizontal height. The invention can actually form a stable wind field, separate out tea leaves with different aerodynamic characteristics and reduce the separation error.

Description

A hierarchical tea core for bright leaf air separator of tea
Technical Field
The invention relates to a graded tea core for a fresh tea leaf winnowing machine, and belongs to the field of fresh tea leaf winnowing mechanical equipment.
Background
The principle of the fresh tea leaf winnowing machine is that different fresh tea leaves with different qualities (different shapes and sizes) have different drifting distances under the action of wind force, so that the quality of the tea leaves is distinguished. The fresh tea leaves after air separation require that the tea leaves flowing out of the same tea outlet of the air separation machine have the aerodynamic characteristic parameter-drift coefficient within a specified range, and the fresh tea leaves are not clearly separated when the aerodynamic characteristic parameter-drift coefficient is beyond the specified range. The main factors influencing the tea winnowing quality are the wind speed distribution of a wind channel opening of the winnowing machine and the wind flow field distribution in the winnowing chamber. The design of the air separation chamber structure can directly influence and even determine the change of the wind flow field, which is also the main reason for influencing the air separation quality.
Therefore, in order to overcome the defects in the prior art, research needs to be carried out, and a grading tea core for a fresh tea leaf winnowing machine is provided, so that a stable wind field can be formed actually, tea leaves with different aerodynamic characteristics can be sorted out, and sorting errors are reduced. In addition, grades of fresh tea leaves of different geometric sizes are separated by rails, such as: one bud with one leaf, one bud with two leaves, one bud with three leaves, etc.
Disclosure of Invention
In order to solve the problems, the invention provides a graded tea core for a fresh tea leaf winnowing machine, and aims to form a more stable wind field, obviously distinguish tea leaves with different qualities and reduce winnowing errors.
In order to achieve the purpose, the technical scheme of the invention is as follows: a grading tea core for a fresh tea leaf winnowing machine comprises an inverted hollow round platform shell, wherein a feed inlet is formed in the top of the shell, and a waste discharge outlet is formed in the bottom of the shell; a plurality of outlets are uniformly arranged on the circumferences of three different horizontal heights on the inner side wall of the shell respectively, the size and the number of the outlets arranged on the circumference of each horizontal height are equal, and the sizes of the outlets at the different horizontal heights are arranged from top to bottom in a decreasing manner; the lower end of the shell is uniformly provided with a plurality of air inlets with the same horizontal height, the number of the air inlets is equal to that of the outlets on each horizontal height, and the air inlets are provided with air speed sensors; each air inlet is connected with an air guide rail, and the air guide rails are arranged on the inner wall of the shell and extend upwards from the right spiral of the air inlet in parallel; the cross section of the air guide rails is divided into three layers from deep to shallow, the surface area of the cross section of the deepest layer is the smallest, the surface area of the cross section of the middle layer is the second lowest, the surface area of the cross section of the shallowest layer is the largest, the deepest layer of each air guide rail extends to each outlet with the lowest horizontal height respectively, each air guide rail corresponds to each outlet, the middle layer extends to a plurality of outlets in the middle of the horizontal height respectively, each air guide rail corresponds to each outlet, the shallowest layer extends to a plurality of outlets with the highest horizontal height respectively, and each air guide rail corresponds to each outlet; the cross sectional areas of the deepest layer, the middle layer and the shallowest layer of the air guide rail are respectively consistent with the cross sectional areas of the outlet with the lowest horizontal height, the middle outlet and the highest horizontal height; the material collecting device also comprises three annular rails which spirally descend leftwards, wherein the annular rails are sleeved on the outer surface of the shell and are respectively communicated with a plurality of outlets on three different horizontal heights, and the tail ends of the three annular rails are connected with a material collecting device; the wind speed sensor also comprises a controller which is electrically connected with the wind speed sensor.
As the preferred, the top of casing is the back taper setting, and the intermediate position at back taper top is the feed inlet, and the whole filter screen structure that is in back taper top, and the mesh hole from the top down of filter screen is by little grow setting.
Preferably, the feed inlet is provided with a filter screen, and the filter screen is provided with a vibration motor.
Preferably, a dust removal device is arranged below the feed inlet and is positioned inside the shell of the graded tea cores.
Preferably, a temperature and humidity sensor is arranged in the grading tea core and is electrically connected with the controller.
Preferably, the air inlets are embedded with micro fans, and the micro fans are electrically connected with the controller.
Preferably, the LED lamp also comprises an LED operating board, and the LED operating board is arranged on the outer surface of the inverted truncated cone-shaped shell and is electrically connected with the controller.
Compared with the prior art, the invention has the following beneficial effects: the design of the air inlet and the air guide rail can obtain a stable wind field, and three sections with different sizes of the air guide rail are matched with the sizes of outlets on three horizontal heights, so that the result of screening tea leaves is more accurate; and a plurality of sensors are arranged, so that the working conditions in the device can be mastered in real time, and partial parameter adjustment can be realized.
Drawings
FIG. 1 is a schematic structural diagram of a grading tea core for a fresh tea leaf winnowing machine according to the present invention;
FIG. 2 is a schematic view of another angle of the graded tea core for the fresh tea leaf winnowing machine of the present invention;
FIG. 3 is a schematic cross-sectional view of an air guide rail of a grading tea core for a fresh tea leaf winnowing machine according to the present invention;
FIG. 4 is a schematic structural view of a micro fan for grading tea cores of a fresh tea leaf winnowing machine according to the present invention;
10-a housing; 20-air inlet; 30-air guide rails; 301-deepest layer wind guide rail; 302-middle layer wind guide rail; 303-the shallowest layer air guide rail; 40-an annular track; 401-a material receiving device; 50-micro fan.
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 specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
On the contrary, the invention is intended to cover alternatives, modifications, equivalents and alternatives which may be included within the spirit and scope of the invention as defined by the appended claims. Furthermore, in the following detailed description of the present invention, certain specific details are set forth in order to provide a better understanding of the present invention. It will be apparent to one skilled in the art that the present invention may be practiced without these specific details.
As shown in fig. 1-2, which is a schematic structural diagram of two angles of a grading tea core for a fresh tea leaf winnowing machine according to the present invention, the grading tea core comprises an inverted hollow circular truncated cone shell 10, the hollow circular truncated cone is more fit with the shape of an air flow field formed by air entering the tea core from below, a feed inlet is arranged at the top of the shell 10, a feed switch is arranged on the feed inlet, a waste discharge port is arranged at the bottom of the shell, a waste discharge switch is arranged on the waste discharge port, when the device finishes working, some tea leaves which are not winnowed out are inevitably remained in the tea core, and at this time, the waste discharge port at the bottom end of the tea core needs to be opened to discharge waste; a plurality of outlets are uniformly arranged on the circumferences of three different horizontal heights on the inner side wall of the grading tea core respectively, the outlets arranged on the circumference of each horizontal height are the same in size and number, and the outlets at the different horizontal heights are arranged in a manner that the sizes of the outlets are reduced from top to bottom; the lower end of the grading tea core is uniformly provided with a plurality of air inlets, the number of the air inlets is equal to that of outlets arranged on each horizontal height, the plurality of air inlets are positioned on the circumference of the same horizontal height, and each air inlet is provided with an air speed sensor; the air guide device further comprises air guide rails 30 with the same number as the air inlets, and each air guide rail 30 is arranged on the inner wall of the shell 10 and extends upwards in parallel from the right spiral of the air inlet.
As shown in fig. 3, which is a schematic cross-sectional view of the air guide rail, a cross section of the air guide rail is divided into three layers from deep to shallow, a cross-sectional surface area of a deepest layer is the smallest, a cross-sectional surface area of a middle layer is the next to the shallowest layer, the deepest layer 301 of each air guide rail extends to a plurality of outlets with the lowest horizontal height, the middle layer 302 extends to a plurality of outlets with the middle horizontal height, and the shallowest layer 303 extends to a plurality of outlets with the highest horizontal height; the cross sectional areas of the deepest layer, the middle layer and the shallowest layer of the air guide rail are respectively consistent with the cross sectional areas of the outlet with the lowest horizontal height, the middle outlet and the highest horizontal height; still include three circular orbit 40 that are left spiral decline, circular orbit 40 sets up in the three different level department at export place and respectively all communicates with six exports on the same level, and three circular orbit 40 end all is connected with material collecting device 401.
Through the grading tea core for the fresh tea leaf winnowing machine, in the specific working process, tea leaves with different qualities enter the shell 10 through the feeding hole, meanwhile, air enters the shell 10 from the air inlet, and a stable air field is formed along the air guide rail 30, and the tea leaves with different qualities can be stabilized on different heights in the air field due to different aerodynamic characteristics of the tea leaves. Generally, the position of tea leaves with one bud and one leaf is the lowest in a stable wind field, the middle of the two buds and the three leaves with one bud is the highest. The annular vortex wind field in which the tea leaves of each shape are located corresponds to three levels of the outlet on the inner surface of the casing 10 by adjusting the wind power, and thus enters the annular rail 30 through the outlet. The air guide rail is provided with three cross sectional areas with different sizes corresponding to the fresh tea leaves with different qualities, the sizes of outlets on different horizontal heights are corresponding to the sizes of the fresh tea leaves stabilized in different wind fields, the fresh tea leaves with different grades screened by the air guide rail with different qualities and different geometric dimensions can enter the annular rail 30 from the outlets with different heights through wind power, the annular rail 30 enables the fresh tea leaves entering the annular rail 30 to be concentrated into the material receiving device 301 connected with the annular rail 30 through the slope of left-handed spiral descending, and therefore the winnowing of the tea leaves is completed.
In specific application embodiment, the top of casing is the back taper setting, the intermediate position at back taper top is the feed inlet, the whole filter screen structure that is in back taper top, and the net hole from the top down of filter screen is set up by little grow, makes tealeaves experience preliminary screening at the in-process of whereabouts.
In the embodiment of specific application, be provided with a filter screen on the feed inlet for tentatively filter the tealeaves that gets into the tea core, be provided with shock dynamo on the filter screen, shock dynamo is connected with the controller electricity, and the controller control shock dynamo's switch and the range of vibrations make tentatively filter more comprehensively.
In a specific application embodiment, a dust removal device is arranged below the feeding hole and inside the grading tea cores, the dust removal device is a negative pressure type pulse bag dust remover, and the negative pressure type pulse bag dust remover can remove dust from tea leaves entering the device and separate the tea leaves from broken leaves, miscellaneous stems and buds and the like.
In a specific application embodiment, a temperature and humidity sensor is arranged inside the grading tea core and electrically connected with the controller, the temperature and humidity in the device and the temperature and humidity of tea leaves entering the device can influence the dynamic characteristics of the fresh tea leaves appearing in the wind field to a great extent, the temperature and humidity in the device can be monitored in real time by arranging the temperature and humidity sensor, the wind force entering the air inlet and the angle of the wind are adjusted accordingly, and the fresh tea leaves with different qualities can be matched with the horizontal heights of the outlets corresponding to each other in the annular wind field.
In a specific application embodiment, all the air inlets are embedded with micro fans, the micro fans are electrically connected with the controller, and the arrangement of the micro fans 50 aims to perform secondary pressurization on the wind power entering the air inlets.
In the embodiment of the specific application, the LED control panel is further included, and the LED control panel is arranged on the outer surface of the inverted truncated cone-shaped shell 10 and is electrically connected with the controller. The parameters monitored by the controller include: temperature, humidity, wind power; the parameters adjusted by the controller include: the switch of the vibration motor, the switch of the external fan and the wind power are large and small. Parameters monitored by the controller are displayed in real time through the LED display screen, and an operator adjusts the required wind power according to the requirement.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. A graded tea core for a fresh tea leaf winnowing machine is characterized by comprising an inverted hollow round-table shell, wherein the top of the shell is provided with a feeding hole, and the bottom of the shell is provided with a waste discharging hole; a plurality of outlets are uniformly arranged on the circumferences of three different horizontal heights on the inner side wall of the shell respectively, the size and the number of the outlets arranged on the circumference of each horizontal height are equal, and the sizes of the outlets at the different horizontal heights are arranged from top to bottom in a decreasing manner; the lower end of the shell is uniformly provided with a plurality of air inlets with the same horizontal height, the number of the air inlets is equal to that of the outlets on each horizontal height, and the air inlets are provided with air speed sensors; each air inlet is connected with an air guide rail, and the air guide rails are arranged on the inner wall of the shell and extend upwards from the right spiral of the air inlet in parallel; the cross section of the air guide rails is divided into three layers from deep to shallow, the surface area of the cross section of the deepest layer is the smallest, the surface area of the cross section of the middle layer is the second lowest, the surface area of the cross section of the shallowest layer is the largest, the deepest layer of each air guide rail extends to each outlet with the lowest horizontal height respectively, each air guide rail corresponds to each outlet, the middle layer extends to a plurality of outlets with the middle horizontal height respectively, each air guide rail corresponds to each outlet, the shallowest layer extends to a plurality of outlets with the highest horizontal height respectively, and each air guide rail corresponds to each outlet; the cross sectional areas of the deepest layer, the middle layer and the shallowest layer of the air guide rail are respectively consistent with the cross sectional areas of the outlet with the lowest horizontal height, the middle outlet and the highest horizontal height; the device also comprises three circular tracks which are spirally descended left, the circular tracks are sleeved on the outer surface of the shell and are respectively communicated with a plurality of outlets on three different horizontal heights, and the tail ends of the three circular tracks are connected with a material receiving device; the wind speed sensor is electrically connected with the wind speed sensor and the external fan.
2. The graded tea core for the fresh tea leaf winnowing machine according to claim 1, wherein the top of the shell is arranged in an inverted cone shape, the middle position of the inverted cone-shaped top is a feeding hole, the inverted cone-shaped top is of a whole filter screen structure, and mesh holes of the filter screen are arranged from top to bottom and are gradually enlarged.
3. The graded tea core for the fresh tea leaf winnowing machine according to claim 1, wherein a filter screen is arranged on the feeding hole, a vibration motor is arranged on the filter screen, and the vibration motor is electrically connected with the controller.
4. The graded tea core for the fresh tea leaf winnowing machine according to claim 1, wherein a dust removing device is arranged below the feeding hole, and the dust removing device is positioned inside a shell of the graded tea core.
5. The graded tea core for the fresh tea leaf winnowing machine according to claim 1, wherein a temperature and humidity sensor is arranged inside the graded tea core, and the temperature and humidity sensor is electrically connected with the controller.
6. The graded tea core for the fresh tea leaf winnowing machine according to claim 1, wherein micro fans are embedded in the air inlets, and the micro fans are electrically connected with the controller.
7. The graded tea core for the fresh tea leaf winnowing machine according to any one of claims 1 to 5, further comprising an LED operation board, wherein the LED operation board is arranged on the outer surface of the inverted truncated cone-shaped shell and is electrically connected with the controller.
CN201810092446.XA 2018-01-29 2018-01-29 A hierarchical tea core for bright leaf air separator of tea Active CN108355964B (en)

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CN201810092446.XA CN108355964B (en) 2018-01-29 2018-01-29 A hierarchical tea core for bright leaf air separator of tea

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CN108355964B true CN108355964B (en) 2021-01-29

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5294002A (en) * 1990-10-03 1994-03-15 Crown Iron Works Company Air separator with spiral staves
JP2012081642A (en) * 2010-10-12 2012-04-26 Kawata Mfg Co Ltd Fine powder removing apparatus
CN204583690U (en) * 2015-04-27 2015-08-26 无锡信大气象传感网科技有限公司 In gas, granular size selects separator
CN204769545U (en) * 2015-05-14 2015-11-18 浙江省新昌县澄潭茶厂 Centrifugal bright leaf sieve separator
CN206716417U (en) * 2017-04-17 2017-12-08 安徽农业大学 A kind of drum-type fresh leaf winnowing machine for tea making
CN206747029U (en) * 2017-04-13 2017-12-15 绵阳蓝奥重型机械制造有限公司 A kind of sorting grid and the powder concentrator sorted using sorting grid
CN206838743U (en) * 2017-04-20 2018-01-05 深圳市宏远达环境发展有限公司 A kind of device for separation of waste in garbage decrement system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5294002A (en) * 1990-10-03 1994-03-15 Crown Iron Works Company Air separator with spiral staves
JP2012081642A (en) * 2010-10-12 2012-04-26 Kawata Mfg Co Ltd Fine powder removing apparatus
CN204583690U (en) * 2015-04-27 2015-08-26 无锡信大气象传感网科技有限公司 In gas, granular size selects separator
CN204769545U (en) * 2015-05-14 2015-11-18 浙江省新昌县澄潭茶厂 Centrifugal bright leaf sieve separator
CN206747029U (en) * 2017-04-13 2017-12-15 绵阳蓝奥重型机械制造有限公司 A kind of sorting grid and the powder concentrator sorted using sorting grid
CN206716417U (en) * 2017-04-17 2017-12-08 安徽农业大学 A kind of drum-type fresh leaf winnowing machine for tea making
CN206838743U (en) * 2017-04-20 2018-01-05 深圳市宏远达环境发展有限公司 A kind of device for separation of waste in garbage decrement system

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