CN105562345A - Equal-diameter roller type fresh tea grading device and method - Google Patents
Equal-diameter roller type fresh tea grading device and method Download PDFInfo
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- CN105562345A CN105562345A CN201610159425.6A CN201610159425A CN105562345A CN 105562345 A CN105562345 A CN 105562345A CN 201610159425 A CN201610159425 A CN 201610159425A CN 105562345 A CN105562345 A CN 105562345A
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23F—COFFEE; TEA; THEIR SUBSTITUTES; MANUFACTURE, PREPARATION, OR INFUSION THEREOF
- A23F3/00—Tea; Tea substitutes; Preparations thereof
- A23F3/06—Treating tea before extraction; Preparations produced thereby
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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
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/18—Drum screens
- B07B1/22—Revolving drums
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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
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
-
- 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
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
-
- 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
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/50—Cleaning
- B07B1/55—Cleaning with fluid jets
-
- 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
-
- 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
- B07B4/06—Separating solids from solids by subjecting their mixture to gas currents while the mixtures fall using revolving drums
-
- 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
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Tea And Coffee (AREA)
Abstract
The invention discloses an equal-diameter roller type fresh tea grading device and method, and belongs to the field of agricultural machinery and equipment. According to the equal-diameter roller type fresh tea grading device, a roller is installed in an inclined manner, each segment of the roller is equal in diameter and length, working parameters can be displayed and adjusted, an air outlet of an air separation fan is located below a feeding belt of a feeding mechanism, and an air outlet of a screen cleaning fan is located above the roller. Due to the equal-diameter structural design, the grading rate and grading speed are improved; and a controller is used for monitoring the working process, so that the grading precision is improved, and the labor intensity is reduced. The air separation fan is used for separating leaves and buds to realize primary grading; the screen cleaning fan is used for blowing the fresh tea leaves blocking the meshes to the roller, so that the screen blockage rate is reduced, and the grading rate and grading speed are increased. The screen mesh can be replaced so as to adapt to different grading requirements. The equal-diameter roller type fresh tea grading device can realize regulation and control of the roller inclination angle, the roller rotation speed and the feeding rate.
Description
Technical field
The invention belongs to talents for agri-mechanization field, be specifically related to tea fresh leaves stage division.
Background technology
Tea fresh leaves grader is a kind of important machine for processing tea in modern agriculture, is reprocessed, can improve the quality of tealeaves finished product by grading plant after tea fresh leaves classification.The operation principle of the outer main tea fresh leaves grader of Present Domestic is substantially identical, is all the sieve aperture utilizing different pore size, by the tea fresh leaves of different brackets separately, thus reaches the object of classification.
Through retrieval patent of invention 200810059580.6, grader cylinder design is become truncated cone-shaped cylindrical shell so that the discharge of tea fresh leaves, but the diameter of cylinder charging aperture is less, thus limits the classification output of grader; Screen-aperture is fixed as 0.5cm, 1.5cm, 2.0cm, makes the first order be mainly used in the classification of tiny broken leaf, and tea fresh leaves is divided into the aperture of these two kinds of sizes of 1.5cm, 2.0cm can only be leaned on to be divided into 3 grades; During classification, drum rotation speed and cylinder slope are fixed, and can only ensure overall classification rate by hand-guided rate of feed, working method is extensive, and rate of feed is difficult to control, and classification efficiency is low.Patent of invention 201210037886.8 realizes classification with multilayer screen cloth, but minimum tea fresh leaves needs to carry out multiple fractionation, damages larger; Its cylinder slope and rate of feed can manual adjustment, but waste time and energy, inaccuracy again, complicated in mechanical structure.Cylinder slope in patent of invention 2013100339166.1, drum rotation speed are still non-adjustable, and rate of feed also can only Artificial Control, work extensive, efficiency is low.Patent of invention 201210273704.7 is with plansifter vibration separation tea fresh leaves, because tea fresh leaves constantly collides with classifying screen in classification process, the tea fresh leaves finally separated damages more serious.Carry out classification by high-power blower to tea fresh leaves in utility model patent 201120157386.9, because tea fresh leaves material is complicated and the difference of fresh leaf floating velocity at different levels is less, grading effect is not good, energy consumption is large.
Existing a kind of drum-type tea fresh leaves grader is circular platform type, minimum diameter 42cm, maximum gauge 73cm, length 130cm, cylinder divides 3 sections, and sieve aperture specification is respectively the square hole of 5mm × 5mm, 7mm × 7mm, 9mm × 9mm, and each segment length is substantially equal, screen slope angle is 6.7 °, drum rotation speed 13r/min, the first order mainly broken leaf in its classification process, the second level and third level screen number is fewer causes classification to yield poorly, it is insufficient that cylinder short-range missile causes fresh leaf classification, and tea fresh leaves easily blocks sieve aperture.Another kind of fresh leaf grader, minimum diameter 32cm, maximum gauge 70cm, length 115cm, cylinder divides 2 sections, sieve aperture specification is respectively 11mm × 11mm, 20mm × 20mm square hole, and two segment length are equal, rotating speed 17r/min during classification, inclination angle is 9.5 °, king-sized tea fresh leaves branches away from cylinder discharge end, but in the tea fresh leaves below the first order and second level cylinder, size differs greatly, and does not reach the object of classification.The classification of above tea fresh leaves grader yields poorly, classification rate is low, and tea fresh leaves easily blocks sieve aperture and needs hand feed, and labour intensity is large, and screen cloth cannot be changed, the running parameter of classification can not adjust, thus cannot meet the classification demand of different tea fresh leaves, and applicability is not strong.
Summary of the invention
The object of the present invention is to provide a kind of equal diameter drum-type tea fresh leaves grading plant and method, equal to realize diameter of cylinder, add selection by winnowing blower fan and cleaning blower fan, thus classification rate in classification process is improved, point stage speed is accelerated, and screen cloth blocking reduces.The screen cloth of grader can load and unload, cylinder slope during work, drum rotation speed, rate of feed are adjustable, workman can change cylinder screen cloth and fine adjustment drum functions parameter according to tea fresh leaves not of the same race, the automatic feeding mechanism of use can timing, quantitative charging, reduce the labour intensity of workman
In order to solve above technical problem, the concrete technical scheme that the present invention adopts is as follows:
A kind of equal diameter drum-type tea fresh leaves grading plant, comprises frame A(1), power source (2), elevating mechanism (3), feeding mechanism (4), controller (5), charging inclined-plane (6), cylinder (7), cleaning blower fan (8), loading head (9) and supporting wheel (10); Elevating mechanism (3) comprises motor A(3 – 1), lift (3 – 2), nut (3 – 3); Feeding mechanism (4) comprises motor B(4 – 1), limitation brush (4 – 2), feeding belt (4 – 3), selection by winnowing blower fan (4 – 4) and frame B(4 – 5); Cylinder (7) and frame A(1) between supported by friction pulley (1 – 1), bearing (1 – 2); Lift (3-2) rotates with nut (3 – 3) and connects, and nut (3 – 3) welds with frame (1) feeding end; Cylinder (7) is driven by power source (2); Power source (2), motor A(3 – 1) and motor B(4 – 1) by controller (5) control, controller (5) display obliquity sensor (5 – 3), speed probe A(5 – 1) and speed probe B(5 – 2) value of feedback;
It is characterized in that: described cylinder (7) is equal diameter cylinder, tilts to install, and described cylinder (7) comprises cylinder framework (7 – 1), cylinder screen cloth (7 – 2) and roller shaft (7 – 3), and described cylinder screen cloth (7 – 2) is for loading and unloading and change;
Described feeding mechanism (4) can to upper feeding, also can oppositely discharging, and charging and discharging rate adjustable, motor B(4 – 1) be variable-speed motor, limitation brush (4 – 2) is fixed on directly over feeding belt (4 – 3) and position is adjustable in the vertical direction, the arranged beneath selection by winnowing blower fan (4 – 4) of feeding belt (4 – 3), and wind speed is adjustable; The air outlet of described selection by winnowing blower fan (4 – 4) faces the locus between feeding belt (4 – 3) and charging inclined-plane (6);
Lift (3 – 2) in described elevating mechanism (3) is two interlock lifts, and elevating mechanism (3) coordinates supporting wheel (10) jointly to complete the adjustment at cylinder (7) inclination angle;
The outlet of described cleaning blower fan (8) is positioned at cylinder (7) top, and outlet downwards;
Described controller (5) is for cylinder slope, drum rotation speed, the feed rate in accurate detection in real time, display and regulation and control tea fresh leaves classification process;
The cylinder slope of described grader, drum rotation speed and rate of feed regulate respectively by elevating mechanism (3), power source (2), feeding mechanism (4), and the output speed of power source (2) is adjustable.
Described elevator landing (3) is single lift driven; Described screen cloth (7 – 2) combination is preferably the screen cloth of 3 kinds of different size mesh.
Described selection by winnowing blower fan (4 – 4), cleaning blower fan (8) are centrifugal blower.
Described motor A(3 – 1) be variable-speed motor; Described screen cloth (7 – 2) is woven by stainless steel or punched-plate is curling forms.
A kind of equal diameter drum-type tea fresh leaves stage division, is characterized in that: specifically comprise the following steps
The first step, in controller (5) upper setting value parameter value;
Second step, uses elevating mechanism (3) to regulate cylinder (7) inclination angle, until inclination angle reaches angle set value;
3rd step, uses power source (2) head roll (7) to rotate, until rotating speed reaches speed setting value;
4th step, start feeding mechanism (4), feeding mechanism starts charging, until rate of feed reaches setting value;
5th step, start selection by winnowing blower fan (4 – 4) and cleaning blower fan (8), system sends reminding alarm sound;
6th step, turn off chimes of doom, tea fresh leaves is placed in the front end of feeding belt (4 – 3), tea fresh leaves grading plant starts to carry out automatic classification to described tea fresh leaves: tea fresh leaves feeding mechanism (4) drive under with certain rate of feed charging, the process on charging inclined-plane (6) is fallen into through selection by winnowing classification from feeding belt (4 – 3) at tea fresh leaves, tea fresh leaves without bud in tea fresh leaves is separated, remaining have the tea fresh leaves of bud to enter cylinder (7) again to carry out sieving and grading, thus by the tea fresh leaves of different brackets separately.
Described value parameter value is specifically set as follows:
The parameters combination of hand getting tea fresh leaves grader highest ranked rate is: cylinder slope 6 °, rate of feed 2kg/min, drum rotation speed 8r/min;
The parameters combination that tea fresh leaves grader highest ranked rate adopted by machine is: cylinder slope 6 °, rate of feed 1.5kg/min, drum rotation speed 16r/min.
operation principle of the present invention:
The present invention is in tea fresh leaves classification process, and the tea fresh leaves of a certain grade can realize classification by corresponding sieve aperture, and tea fresh leaves determines the overall classification rate of tea fresh leaves jointly at time and the probability contacting screen cloth of cylinder internal classification.The grading time of tea fresh leaves in cylinder and the probability contacting screen cloth are all relevant with cylinder slope during classification, drum rotation speed rate of feed.By regulating the value parameter in tea fresh leaves classification process, a point stage speed can be ensured, improve classification rate.
the present invention has beneficial effect:
The present invention makes cylinder screen cloth and ground form certain inclination angle by adopting the mode of drum-inclined installation, thus meet discharge demand, cylinder is made equal diameter, increases the diameter of cylinder feed end, improve cylinder utilization rate, thus improve the output of tea fresh leaves classification;
Screen cloth of the present invention is replaceable, makes grader can adapt to the tea fresh leaves classification of different size, different cultivars; Can load and unload simultaneously, divide the number of degrees of tea fresh leaves to be 2 ~ 4, classification adaptability is strengthened;
The present invention is by employing 3 kinds of screen clothes, and screen size choosing is combined as 6mm × 6mm, 10mm × 10mm, 13mm × 13mm, tea fresh leaves can be separated from mixing tea fresh leaves by simple bud bud, bud one leaf, two leaves and a bud;
The present invention adopts selection by winnowing blower fan bud very large for floating velocity difference and leaf to be separated; Selection by winnowing classification is combined with trommelling classification, improves classification efficiency;
The present invention adopts interlock hoistable platform to coordinate supporting wheel to use, and makes tea fresh leaves grader rising held stationary, does not occur crooked;
The present invention adopts cleaning blower fan, to canyon above cylinder, relaxes and has led to sieve aperture, improve a point stage speed; Meanwhile, make the tea fresh leaves be blocked in sieve aperture again fall into cylinder, again carry out classification, thus improve classification rate;
The present invention, by increasing control system, accurately shows in real time and controls drum rotation speed, cylinder slope, the rate of feed in the grader course of work, realizing quantitative management; Meanwhile, the elevating mechanism of employing and feeding mechanism are motor and drive, and improve mechanization degree, decrease labor strength;
Drum rotation speed in the present invention, cylinder slope, rate of feed can set according to different tea fresh leaves, therefore grader may be used for the classification of multiple different tea fresh leaves;
The present invention, by the research of reciprocity diameter drum formula tea fresh leaves stage division, have found the factor primary and secondary order affecting tea fresh leaves classification, running parameter combination optimum under simultaneously have found experimental condition.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention
Fig. 2 is mesh structure schematic diagram of the present invention
Fig. 3 is feeding mechanism structural representation of the present invention
Fig. 4 is hoistable platform structural representation of the present invention
In figure: 1 frame 2 power source 3 elevating mechanism 4 feeding mechanism 5 controller 6 charging inclined-plane 7 cylinder 8 cleaning blower fan 9 loading head 10 supporting wheel 3 – 1 motor A3 – 2 lift 3 – 3 nut 4 – 1 motor B4 – 2 limits the quantity brush 4 – 3 feeding belt 4 – 4 selection by winnowing blower fan 4 – 5 frame B1-1 friction pulley 1 – 2 bearing 5 – 1 speed probe A5 – 2 speed probe B5 – 3 obliquity sensor 7 – 1 cylinder framework 7 – 2 cylinder screen cloth 7 – 3 roller shaft.
Detailed description of the invention
Be classified as example with tea fresh leaves below, with specific embodiment, technical scheme of the present invention be described in further detail by reference to the accompanying drawings.
As shown in Figure 1, structure of the present invention comprises frame 1, power source 2, elevating mechanism 3, feeding mechanism 4, controller 5, charging inclined-plane 6, cylinder 7, cleaning blower fan 8 and loading head 9.
As shown in Figure 2, in cylinder 7 of the present invention, cylinder screen cloth 7 – 2 is fixed on cylinder framework 7 – 1 by ring, and cylinder screen cloth 7 – 2 can carry out changing and loading and unloading according to the different material of tea fresh leaves and requirement; The periphery of cylinder 7 feed end is supported by the friction pulley 1 of two on support 1 – 1 and is driven, and roller shaft 7 – 3 is by bearing 1-2 and frame 1 rotation-coupled, and cylinder 7 tilts to install;
As shown in Figure 3, elevating mechanism 3 of the present invention comprises motor 3 – 1 and two interlock Worm gear feed screw lift 3 – 2, and linked manner can ensure that frame is steadily elevated, and does not occur crooked at width; In lift 3 – 2 course of work, screw mandrel rotation forces nut moves up and down, and the nut be welded in frame promotes frame feeding end and rises or decline, thus changes the cylinder slope in tea fresh leaves classification process.
As shown in Figure 4, feeding mechanism 4 of the present invention comprises motor 4 – 1, limitation brush 4 – 2, feeding belt 4 – 3, cleaning fan 4 – 4 and frame 4 – 5 thereof, limitation brush 4 – 2 is fixed on directly over feeding belt 4 – 3 and position is adjustable at vertical direction, arranged beneath selection by winnowing blower fan 4 – 4 of feeding belt 4 – 3.
example one
the classification of hand getting tea fresh leaves:before tea fresh leaves classification, the first size according to target tea fresh leaves and grade quantitative requirement select 3 sections of screen clothes, and size is followed successively by: 6mm × 6mm, 10mm × 10mm, 13mm × 13mm, is contained on cylinder framework 7 – 1.Cylinder slope when setting classification according to the kind of tea fresh leaves and the composition of tea fresh leaves at different levels by controller 5 again as 6 °, drum rotation speed is 8r/min, rate of feed is 2.0kg/min.After setting, elevating mechanism 3 starts, and cylinder slope is adjusted to setting value; Postpone through 10s, power source 2 starts, and cylinder 7 is accelerated to setting value; Postpone through 10s, feed mechanism 4 starts, and after the transfer rate of feeding belt 4 – 3 is accelerated to setting value, selection by winnowing blower fan 4 – 4 and cleaning blower fan 8 start again.Time delay 10s, controller is reported to the police, and workman starts material loading.Workman is placed on feeding belt 4 – 3 front end tea fresh leaves, tea fresh leaves is with the rate of feed charging of feeding belt 4 – 3 according to setting, limitation brush 4 – 2 scrapes off blocked up tea fresh leaves under the driving of motor 5 – 1, tea fresh leaves falls from feeding belt 4 – 3 end, drop in charging inclined-plane 6 after the classification of selection by winnowing blower fan 4 – 4 selection by winnowing, tea fresh leaves without bud in tea fresh leaves in winnowing process is separated, and realizes preliminary classification; Tea fresh leaves enters cylinder 7 by charging inclined-plane 6, moves under gravity along screen cloth 7-2 inner surface to the discharge end of cylinder 7, falls into loading head 9 as screen cloth 7 – 2 different by slot size and collects.Grade is in such cases 89%.
example two
the classification of tea fresh leaves adopted by machine:before tea fresh leaves classification, the first size according to target tea fresh leaves and grade quantitative requirement select 3 sections of screen clothes, and size is followed successively by: 10mm × 10mm, 15mm × 15mm, 20mm × 20mm, is contained on cylinder framework 7 – 1.Cylinder slope 6 °, drum rotation speed 16r/min, rate of feed 1.5kg/min when establishing classification according to the kind of tea fresh leaves and the composition of tea fresh leaves at different levels by controller 5 again.After setting, elevating mechanism 3 starts, and cylinder slope is adjusted to setting value; Postpone through 10s, power source 2 starts, and cylinder 7 is accelerated to setting value; Postpone through 10s, feed mechanism 4 starts, and after the transfer rate of feeding belt 4 – 3 is accelerated to setting value, selection by winnowing blower fan 4 – 4 and cleaning blower fan 8 start again.Time delay 10s, controller is reported to the police, and workman starts material loading.Workman is placed on feeding belt 4 – 3 front end tea fresh leaves, tea fresh leaves is with the feed rate charging of feeding belt 4 – 3 according to setting, limitation brush 4 – 2 scrapes off blocked up tea fresh leaves under the driving of motor 5 – 1, tea fresh leaves falls from feeding belt 4 – 3 end, drop in charging inclined-plane 6 after the classification of selection by winnowing blower fan 4 – 4 selection by winnowing, tea fresh leaves without bud in tea fresh leaves in winnowing process is separated, and realizes preliminary classification; Tea fresh leaves enters cylinder 7 by charging inclined-plane 6, moves under gravity along screen cloth 7-2 inner surface to cylinder 7 discharge end, falls into loading head 9 as screen cloth 7 – 2 different by slot size and collects.Classification rate is in such cases 75%.
Of the present inventionly can change different screen clothes according to different tea fresh leaves, and provide different value parameter combinations to ensure that higher point stage speed and classification rate.
It should be noted that, although be illustrated equal diameter drum-type grading plant of the present invention and method for tea fresh leaves in description, but the purposes of these diameter drum formula tea fresh leaves grading plants and method is not limited to the situation described in description, in actual use, also above-mentioned equal diameter drum-type tea fresh leaves grading plant and method can be used for other occasion.
Claims (6)
1. an equal diameter drum-type tea fresh leaves grading plant, comprises frame A(1), power source (2), elevating mechanism (3), feeding mechanism (4), controller (5), charging inclined-plane (6), cylinder (7), cleaning blower fan (8), loading head (9) and supporting wheel (10); Elevating mechanism (3) comprises motor A(3 – 1), lift (3 – 2), nut (3 – 3); Feeding mechanism (4) comprises motor B(4 – 1), limitation brush (4 – 2), feeding belt (4 – 3), selection by winnowing blower fan (4 – 4) and frame B(4 – 5); Cylinder (7) and frame A(1) between supported by friction pulley (1 – 1), bearing (1 – 2); Lift (3-2) rotates with nut (3 – 3) and connects, and nut (3 – 3) welds with frame (1) feeding end; Cylinder (7) is driven by power source (2); Power source (2), motor A(3 – 1) and motor B(4 – 1) by controller (5) control, controller (5) display obliquity sensor (5 – 3), speed probe A(5 – 1) and speed probe B(5 – 2) value of feedback;
It is characterized in that: described cylinder (7) is equal diameter cylinder, tilts to install, and described cylinder (7) comprises cylinder framework (7 – 1), cylinder screen cloth (7 – 2) and roller shaft (7 – 3), and described cylinder screen cloth (7 – 2) is for loading and unloading and change;
Described feeding mechanism (4) can to upper feeding, also can oppositely discharging, and charging and discharging rate adjustable, motor B(4 – 1) be variable-speed motor, limitation brush (4 – 2) is fixed on directly over feeding belt (4 – 3) and position is adjustable in the vertical direction, the arranged beneath selection by winnowing blower fan (4 – 4) of feeding belt (4 – 3), and wind speed is adjustable; The air outlet of described selection by winnowing blower fan (4 – 4) faces the locus between feeding belt (4 – 3) and charging inclined-plane (6);
Lift (3 – 2) in described elevating mechanism (3) is two interlock lifts, and elevating mechanism (3) coordinates supporting wheel (10) jointly to complete the adjustment at cylinder (7) inclination angle;
The outlet of described cleaning blower fan (8) is positioned at cylinder (7) top, and outlet downwards;
Described controller (5) is for cylinder slope, drum rotation speed, the feed rate in accurate detection in real time, display and regulation and control tea fresh leaves classification process;
The cylinder slope of described grader, drum rotation speed and rate of feed regulate respectively by elevating mechanism (3), power source (2), feeding mechanism (4), and the output speed of power source (2) is adjustable.
2. a kind of equal diameter drum-type tea fresh leaves grading plant according to claim 1, is characterized in that: described elevator landing (3) is single lift driven; Described screen cloth (7 – 2) combination is preferably the screen cloth of 3 kinds of different size mesh.
3. a kind of equal diameter drum-type tea fresh leaves grading plant according to claim 1, is characterized in that: described selection by winnowing blower fan (4 – 4), cleaning blower fan (8) are centrifugal blower.
4. a kind of equal diameter drum-type tea fresh leaves grading plant according to claim 1, is characterized in that: described motor A(3 – 1) be variable-speed motor; Described screen cloth (7 – 2) is woven by stainless steel or punched-plate is curling forms.
5. the stage division of the tea fresh leaves grading plant of a kind of equal diameter drum-type tea fresh leaves grading plant according to claim 1, is characterized in that: specifically comprise the following steps
The first step, in controller (5) upper setting value parameter value;
Second step, uses elevating mechanism (3) to regulate cylinder (7) inclination angle, until inclination angle reaches angle set value;
3rd step, uses power source (2) head roll (7) to rotate, until rotating speed reaches speed setting value;
4th step, start feeding mechanism (4), feeding mechanism starts charging, until rate of feed reaches setting value;
5th step, start selection by winnowing blower fan (4 – 4) and cleaning blower fan (8), system sends reminding alarm sound;
6th step, turn off chimes of doom, tea fresh leaves is placed in the front end of feeding belt (4 – 3), tea fresh leaves grading plant starts to carry out automatic classification to described tea fresh leaves: tea fresh leaves feeding mechanism (4) drive under with certain rate of feed charging, the process on charging inclined-plane (6) is fallen into through selection by winnowing classification from feeding belt (4 – 3) at tea fresh leaves, tea fresh leaves without bud in tea fresh leaves is separated, remaining have the tea fresh leaves of bud to enter cylinder (7) again to carry out sieving and grading, thus by the tea fresh leaves of different brackets separately.
6. the tea fresh leaves stage division of a kind of equal diameter drum-type tea fresh leaves grading plant according to claim 5, is characterized in that described value parameter value is specifically set as follows:
The parameters combination of hand getting tea fresh leaves grader highest ranked rate is: cylinder slope 6 °, rate of feed 2kg/min, drum rotation speed 8r/min;
The parameters combination that tea fresh leaves grader highest ranked rate adopted by machine is: cylinder slope 6 °, rate of feed 1.5kg/min, drum rotation speed 16r/min.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610159425.6A CN105562345A (en) | 2016-03-21 | 2016-03-21 | Equal-diameter roller type fresh tea grading device and method |
| PCT/CN2016/110037 WO2017161924A1 (en) | 2016-03-21 | 2016-12-15 | Equal-diameter trommel apparatus and method for fresh tea leaf grading |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610159425.6A CN105562345A (en) | 2016-03-21 | 2016-03-21 | Equal-diameter roller type fresh tea grading device and method |
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| CN105562345A true CN105562345A (en) | 2016-05-11 |
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| CN201610159425.6A Pending CN105562345A (en) | 2016-03-21 | 2016-03-21 | Equal-diameter roller type fresh tea grading device and method |
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| WO (1) | WO2017161924A1 (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105892396A (en) * | 2016-06-02 | 2016-08-24 | 江苏大学 | System and method for controlling working parameters of fresh tea leaf classifier |
| CN106040572A (en) * | 2016-06-14 | 2016-10-26 | 赵宁光 | Screening device for mineral beneficiation |
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| CN106615272A (en) * | 2016-12-05 | 2017-05-10 | 浙江理工大学 | Multistage differential fresh tea leaf sorting and single-column conveyor and single-column conveying method thereof |
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| CN111389745B (en) * | 2020-04-07 | 2022-05-03 | 黎明职业大学 | Intelligent sorting method based on machine vision |
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