Winnowing and screening device for black tea processing
By combining screening screens, vibrating motors, and air-water atomization in black tea processing, the problem of incomplete impurity separation in tea air separation devices has been solved, achieving efficient screening and impurity collection of tea, and improving the quality and purity of tea.
Patent Information
- Application Number
- CN202520090753.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-15
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-01-15
AI Technical Summary
Existing tea air separation and screening devices are not effective at removing impurities, and light impurities are easily mixed with tea leaves, affecting the quality of the tea.
A wind-separation sieving device for black tea processing was designed. It adopts a structure of sieving screen, vibrating motor, first fan and impurity removal box. It achieves effective separation and collection of light impurities and dust by combining wind power and water atomization.
It improves the purity and consistency of tea leaves, prevents light impurities from mixing with the tea leaves again, enhances the screening effect, and has a reasonable structure that facilitates the cleaning of impurities.
Smart Images
Figure CN223733289U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to tea processing technical field especially relates to a black tea processing winnowing and screening device. BACKGROUND
[0002] As a popular tea type, the quality control of black tea is very important. In the production and processing of black tea, screening is a key process, which is located after the processes of tea picking, withering and rolling, and has a direct impact on the quality of tea. The main purpose of screening is to classify tea according to size, shape, weight and other characteristics, remove impurities, broken leaves and tea that does not meet the standard, so as to improve the purity and overall quality of tea. However, due to the tea picking and processing process, some dust and other light impurities are mixed in. As a high-efficiency and accurate screening method in modern tea processing, the winnowing and screening technology is widely used in tea impurity removal processing because it does not need to use chemical agents, reduces energy consumption and environmental pollution.
[0003] In the tea winnowing process, the use of wind power can blow away the light impurities and dust in the tea, further improving the cleanliness of the tea and improving the quality of the tea. However, in the existing tea winnowing process, part of the dust and impurities can be mixed again with the tea falling after being blown away by the wind. Therefore, the present application provides a black tea processing winnowing and screening device to meet the needs. SUMMARY
[0004] The technical problem to be solved by the utility model is to provide a black tea processing winnowing and screening device to solve the problem of poor screening effect of existing tea.
[0005] To solve the above technical problems, the utility model provides the following technical scheme:
[0006] A black tea processing winnowing and screening device, comprising a screening box, the inside bottom of the screening box has a first collection cavity and a second collection cavity arranged side by side, a partition plate for separating the first collection cavity and the second collection cavity is fixed on the inside bottom wall of the screening box, a screening mesh plate is arranged between the top end of the partition plate and the side wall of the screening box inside towards the first collection cavity, the screening mesh plate is inclined towards the second collection cavity, a wind pipe is assembled on the side wall of the screening box inside towards the second collection cavity, the wind pipe is parallel to the screening mesh plate, and a first fan is assembled in the wind pipe, the first fan is used for blowing air towards the upper part of the screening mesh plate, a dedusting box is assembled on the outside wall of the screening box corresponding to the high position of the screening mesh plate, and the dedusting box is used for collecting the impurities blown by the first fan.
[0007] Optionally, a feeding hopper is assembled at the top end of the screening box, and a dropping pipe is connected to the bottom end of the feeding hopper, the dropping pipe is inclined towards the high position of the screening mesh plate.
[0008] Optionally, the sieve box is provided with a door plate at a position corresponding to the first collecting cavity and the second collecting cavity.
[0009] Optionally, a vibration motor is arranged at the bottom of the sieve plate, and elastic supporting members for elastically supporting the sieve plate are arranged on the partition plate and the inner wall of the sieve box.
[0010] Optionally, the elastic supporting members comprise fixing blocks fixed on the inner wall of the sieve box and the partition plate, sleeve columns vertically fixed on the bottom of the sieve plate, and connecting rods vertically fixed on the fixing blocks, the top ends of the connecting rods extend into the sleeve columns and are connected with baffle plates, and springs are arranged between the baffle plates and the inner top walls of the sleeve columns.
[0011] Optionally, the impurity removal box and the sieve box are provided with an impurity removal slot at a position above the sieve plate, and the top of the side wall of the impurity removal box away from the sieve box is provided with an air outlet frame, and the air outlet frame is provided with a second fan.
[0012] Optionally, the end of the air pipe towards the sieve plate is provided with a first separation net, and the end of the air pipe towards the outside of the sieve box and the end of the air outlet frame towards the outside of the impurity removal box are provided with a second separation net.
[0013] Optionally, the top of the impurity removal box is provided with a water tank, the top end of the impurity removal box is provided with a water inlet, the bottom end of the water tank is provided with an atomizing nozzle, and the bottom of the water tank is provided with a water pump for pumping water towards the atomizing nozzle.
[0014] Optionally, the bottom end of the impurity removal box is provided with a bottom cover plate, one end of the bottom cover plate is hinged to the impurity removal box, and the other end of the bottom cover plate is locked to the impurity removal box.
[0015] Optionally, the bottom cover plate is provided with a drain port, and the bottom of the bottom cover plate is provided with a detachable recovery bottle at a position corresponding to the drain port.
[0016] Compared with the prior art, the utility model has at least the following beneficial effects:
[0017] In the above scheme, by setting the screening net plate and the first fan, the black tea is put into the feeding hopper, the black tea is dropped along the dropping pipe to the high place of the screening net plate, the vibration motor is started, and the elastic support of the screening net plate is supported by the elastic support, so that the screening net plate is vibrated, the tea leaves are caused to slide from the high place to the low place of the screening net plate and are screened, the larger impurities and tea leaves slide along the screening net plate to the second collecting cavity for collection, the qualified tea leaves fall into the first collecting cavity for collection, by the setting of the first fan and the air pipe, air is blown towards the upper part of the screening net plate, the light impurities and dust in the tea leaves are blown away by the wind power, the second fan in the air outlet frame is started to exhaust air towards the outside of the impurity removal box, negative pressure is generated in the impurity removal box, the light impurities and dust blown from the tea leaves above the screening net plate are sucked into the impurity removal box through the impurity removal groove, the light impurities and dust sucked into the impurity removal box are settled by the water pump and the atomizing nozzle spraying water mist towards the bottom of the impurity removal box, the wind selection and impurity removal of the black tea can be realized, the specification consistency and purity of the finished tea are ensured, the impurity collection function is provided, the concentrated cleaning of the impurities is facilitated, in addition, the structure mode of the air supply and impurity removal from the bottom to the top can delay the sliding speed of the tea leaves on the screening net plate, improve the tea leaf screening effect, and avoid the mixed influence of the blown light impurities and dust and the larger tea leaves on the subsequent processing, the overall structure is reasonable, and the tea leaf wind selection and screening effect is good. BRIEF DESCRIPTION OF DRAWINGS
[0018] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments of the present application and, together with the description, further serve to explain the principles of the present application and to enable a person skilled in the relevant art to make and use the present application.
[0019] Figure 1 It is an overall structure schematic view of the wind selection and screening device for processing black tea.
[0020] Figure 2 It is an internal structure schematic view of the screening box of the wind selection and screening device for processing black tea.
[0021] Figure 3 It is an internal structure schematic view of the feeding hopper of the wind selection and screening device for processing black tea.
[0022] Figure 4 It is a structure schematic view of the elastic support.
[0023] Reference signs:
[0024] 1, screening box; 2, feeding hopper; 3, impurity removal box; 4, door plate; 5, first collection cavity; 6, second collection cavity; 7, partition plate; 8, screening mesh plate; 9, elastic support; 10, vibration motor; 11, air pipe; 12, first fan; 13, first partition mesh; 14, second partition mesh; 15, impurity removal slot; 16, dropping pipe; 17, water tank; 18, atomizing nozzle; 19, water pump; 20, air outlet frame; 21, second fan; 22, water inlet; 23, water outlet; 24, recovery bottle; 25, bottom cover plate; 26, fixing block; 27, sleeve column; 28, connecting rod; 29, baffle; 30, spring.
[0025] As shown in the drawings, in order to clearly realize the structure of the embodiments of the utility model, specific structures and devices are marked in the drawings, but this is only for the need of illustration, and is not intended to limit the utility model in the specific structure, device and environment. According to specific needs, those skilled in the art can adjust or modify these devices and environment. DETAILED DESCRIPTION
[0026] The wind selection and screening device for black tea processing provided by the utility model is described in detail below in combination with the drawings and specific embodiments. It should be noted that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and other alternative ways can also be used by those skilled in the art to implement some known technologies; and the drawings are only used to more specifically describe the embodiments, and are not intended to specifically limit the utility model.
[0027] It should be noted that in the specification, "one embodiment", "embodiment", "exemplary embodiment", "some embodiments" and the like indicate that the described embodiments can include specific features, structures or characteristics, but not necessarily every embodiment includes the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in combination with an embodiment, it should be within the knowledge of those skilled in the related art to realize this feature, structure or characteristic in combination with other embodiments (whether or not explicitly described).
[0028] Generally, the terms can be understood at least partly from the use in the context. For example, depending at least partly on the context, the term "one or more" used herein can be used to describe any feature, structure or characteristic in the singular sense or can be used to describe a combination of features, structures or characteristics in the plural sense. In addition, the term "based on" can be understood as not necessarily conveying a set of exclusive factors, but can instead allow the presence of other factors not necessarily explicitly described, at least partly depending on the context.
[0029] It is to be understood that the terms "on", "above", and "upper" in the present application should be interpreted in the broadest context, such that "on" not only means "directly on" but also includes the meaning of "on" with intervening characteristics or layers therebetween, and "above" or "upper" not only means "above" or "upper" but also includes the meaning of "above" or "upper" with no intervening characteristics or layers therebetween.
[0030] In addition, spatially relative terms, such as "beneath", "below", "lower", "above", "upper", and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. The spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. The devices can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
[0031] As Figure 1 and Figure 2As shown, the utility model discloses a kind of winnowing and screening devices of black tea processing, including screening box 1, the first collection cavity 5 and second collection cavity 6 with side-by-side distribution are possessed in the bottom of screening box 1, fixed with the baffle 7 for separating first collection cavity 5 and second collection cavity 6 on the inner bottom wall of screening box 1, baffle 7 top end is between the sidewall of screening box 1 inside towards first collection cavity 5 and be provided with screening mesh plate 8, screening mesh plate 8 is inclined distribution towards second collection cavity 6, air pipe 11 is equipped on the sidewall of screening box 1 inside towards second collection cavity 6, air pipe 11 is parallel with screening mesh plate 8, and first fan 12 is equipped in air pipe 11, and first fan 12 is used to send air towards the above of screening mesh plate 8, and the position corresponding with the high place of screening mesh plate 8 is equipped with impurity removal box 3 on the outer sidewall of screening box 1, and impurity removal box 3 is used to collect the impurity that first fan 12 blows floating.Screening box 1 top end is equipped with feeding hopper 2, and feeding hopper 2 bottom end is connected with drop tube 16, and drop tube 16 is inclined distribution towards the high place of screening mesh plate 8, and black tea is put into feeding hopper 2 and is along drop tube 16 and falls to the high place of screening mesh plate 8, and screening mesh plate 8 bottom is equipped with vibration motor 10, and baffle 7 and the inner wall of screening box 1 are provided with the elastic support 9 for the elastic support of screening mesh plate 8, and the elastic support of screening mesh plate 8 is supported by starting vibration motor 10, cooperation elastic support 9, makes screening mesh plate 8 vibrate, promotes tea from the high place of screening mesh plate 8 to low place and falls and is screened, and larger impurity and tea are along screening mesh plate 8 and fall to second collection cavity 6 and are collected, and qualified tea falls into first collection cavity 5 and is collected, simultaneously, first fan 12 in air pipe 11 is started and blows towards the above of screening mesh plate 8, and the light weight impurity and dust in tea are blown away using wind power, and the light weight impurity and dust that blows floating are collected by impurity removal box 3, so as to realize the winnowing and impurity removal of black tea and screening, guarantee the specification consistent and purity of finished tea, and have impurity collection function, in addition, the structural mode of the structure of blowing and removing impurities from top to bottom is inclined, which can not only delay the speed of tea sliding on the screening mesh plate 8, improve the screening effect of tea, but also avoid the mixed influence of light weight impurities and dust blown floating and larger tea on subsequent processing.
[0032] As Figures 1 to 4 Shown, the elastic support 9 includes fixed block 26 fixed on the inner wall of screening box 1 and baffle 7, sleeve column 27 vertically fixed on the bottom of screening mesh plate 8 and connecting rod 28 vertically fixed on fixed block 26, connecting rod 28 top end extends into sleeve column 27 and is connected with baffle 29, baffle 29 is provided with spring 30 between the inner top wall of sleeve column 27, and the elastic support of screening mesh plate 8 is realized using spring 30.
[0033] As Figures 1 to 3As shown, the impurity removal box 3 and the screening box 1 side wall are provided with an impurity removal slot 15 above the screening mesh plate 8, the top of the side wall of the impurity removal box 3 away from the screening box 1 is provided with an air outlet frame 20, the second fan 21 is assembled in the air outlet frame 20, the second fan 21 in the air outlet frame 20 is started to suck air outside the impurity removal box 3, a negative pressure is generated in the impurity removal box 3, the light impurities and dust in the tea above the screening mesh plate 8 are sucked into the impurity removal box 3 through the impurity removal slot 15, the first separation net 13 is assembled at one end of the air pipe 11 towards the screening mesh plate 8, for preventing tea from falling into the air pipe 11, the second separation net 14 is assembled at one end of the air pipe 11 towards the outside of the screening box 1 and one end of the air outlet frame 20 towards the outside of the impurity removal box 3, for protecting the first fan 12 and the second fan 21. The water tank 17 is arranged at the top of the impurity removal box 3, the water inlet 22 is arranged at the top end of the impurity removal box 3, the atomizing nozzle 18 is assembled at the bottom end of the water tank 17, the water pump 19 for pumping water towards the atomizing nozzle 18 is assembled at the bottom of the water tank 17, water is injected into the water tank 17 through the water inlet 22, and the water pump 19 and the atomizing nozzle 18 are used to spray water mist towards the bottom of the impurity removal box 3, so that the light impurities and dust sucked into the impurity removal box 3 are settled, the impurities are collected, and the impurities are conveniently collected and cleaned.
[0034] The technical scheme of the utility model provides the working principle as follows:
[0035] In use, the black tea is put into the feeding hopper 2, the black tea is arranged and falls along the dropping pipe 16 to the high place of the screening mesh plate 8, the vibration motor 10 is started, the elastic support of the elastic support 9 is matched with the elastic support of the screening mesh plate 8, the screening mesh plate 8 is vibrated, the tea leaf is caused to slide from the high place to the low place of the screening mesh plate 8 and is screened, the larger impurities and tea leaves slide along the screening mesh plate 8 to the second collecting cavity 6 and are collected, the qualified tea leaves fall into the first collecting cavity 5 and are collected, at the same time, the first fan 12 in the air pipe 11 is started and blows air towards the upper side of the screening mesh plate 8, the light impurities and dust in the tea leaf are blown away by using the air power, the second fan 21 in the air outlet frame 20 is started and exhausts air towards the impurity removal box 3, the negative pressure is generated in the impurity removal box 3, the light impurities and dust blown in the tea leaf above the screening mesh plate 8 are sucked into the impurity removal box 3 through the impurity removal slot 15, then the water pump 19 and the atomizing nozzle 18 spray water mist towards the bottom of the impurity removal box 3, the light impurities and dust sucked into the impurity removal box 3 are settled, the winnowing and impurity removal of the black tea are realized, the specification consistency and purity of the finished tea are ensured, and the impurity collection function is also provided, in addition, the structure mode of the upward inclined air supply and impurity removal can delay the sliding speed of the tea leaf on the screening mesh plate 8, improve the tea leaf screening effect, and avoid the mixed light impurities and dust and the larger tea leaf to affect the subsequent processing, the overall structure is reasonable, and the tea leaf winnowing and screening effect is good.
[0036] The utility model covers any alternative, modification, equivalent method and scheme which are made on the essence and range of the utility model. In order to make the public have the thorough understanding of the utility model, the specific details are explained in the following utility model preferred embodiment, and the utility model can also be completely understood without the description of these details for the person skilled in the art. In addition, in order to avoid unnecessary confusion to the essence of the utility model, the well-known method, process, flow, element and circuit etc. are not explained in detail.
[0037] The above only is the preferred implementation mode of the utility model, should point out, for ordinary technical personnel in this technical field, under the premise that without departing from the principle of the utility model, still can make a number of improvement and embellishment, these improvements and embellishment also should be regarded as the protection range of the utility model.
Claims
1. A winnowing and screening device for black tea processing, comprising a screening box, characterized in that: the inner bottom of the screening box is provided with first and second collecting cavities arranged side by side, a partition plate is fixed on the inner bottom wall of the screening box for separating the first and second collecting cavities, a screening mesh plate is arranged between the top end of the partition plate and the side wall of the screening box interior facing the first collecting cavity, the screening mesh plate is arranged obliquely towards the second collecting cavity, an air pipe is arranged on the side wall of the screening box interior facing the second collecting cavity, the air pipe is parallel to the screening mesh plate, a first fan is arranged in the air pipe for air supply above the screening mesh plate, and a foreign matter removal box is arranged on the outer side wall of the screening box at a position corresponding to the upper part of the screening mesh plate for collecting foreign matter blown by the first fan. A feeding hopper is arranged at the top end of the screening box, and a dropping pipe is connected to the bottom end of the feeding hopper and arranged obliquely towards the upper part of the screening mesh plate.
2. A winnowing and sieving apparatus for processing black tea as claimed in claim 1 wherein, Door plates are arranged on the side walls of the screening box at positions corresponding to the first and second collecting cavities.
3. The processing of black tea winnower screening device according to claim 1, characterized in that, A vibration motor is arranged at the bottom of the screening mesh plate, and elastic support members are arranged on the partition plate and the inner wall of the screening box for elastically supporting the screening mesh plate.
4. The processing of black tea winnower screening device according to claim 1, characterized in that, The elastic support members comprise fixed blocks fixed on the inner wall of the screening box and the partition plate, a sleeve column vertically fixed on the bottom of the screening mesh plate, and a connecting rod vertically fixed on the fixed blocks, the top end of the connecting rod extends into the sleeve column and is connected with a baffle, and a spring is arranged between the baffle and the inner top wall of the sleeve column.
5. A winnower and sizer apparatus for black tea processing according to claim 4, characterised in that, A foreign matter discharge slot is formed in the foreign matter removal box and the side wall of the screening box at a position above the screening mesh plate, an air outlet frame is arranged on the top of the side wall of the foreign matter removal box away from the screening box, and a second fan is arranged in the air outlet frame.
6. The processing apparatus for black tea according to claim 1, wherein A first separation mesh is arranged at one end of the air pipe towards the screening mesh plate, and a second separation mesh is arranged at one end of the air pipe towards the outside of the screening box and one end of the air outlet frame towards the outside of the foreign matter removal box.
7. A winnowing and sieving apparatus for processing black tea according to claim 6, characterised in that, A water tank is arranged in the top of the foreign matter removal box, a water inlet is arranged at the top end of the foreign matter removal box, an atomizing nozzle is arranged at the bottom end of the water tank, and a water pump is arranged in the bottom of the water tank for pumping water towards the atomizing nozzle.
8. A winnowing and sieving apparatus for processing black tea as claimed in claim 6 wherein, A bottom cover plate is arranged at the bottom end of the foreign matter removal box, one end of the bottom cover plate is hinged to the foreign matter removal box, and the other end of the bottom cover plate is locked to the foreign matter removal box.
9. A winnowing and sieving apparatus for processing black tea according to claim 8, characterised in that, A drain opening is formed in the bottom cover plate, and a detachable recovery bottle is arranged at the bottom of the bottom cover plate at a position corresponding to the drain opening.
10. A winnowing and sieving apparatus for processing black tea according to claim 9, wherein,