Drying and screening device for tea processing

Abstract

The utility model provides a drying and screening device for tea leaf processing, which belongs to the technical field of tea leaf processing and comprises a heat preservation shell fixed on one side of the top end of a base, and a rotary drum rotationally connected inside the heat preservation shell. The dust removal structure comprises a collection box installed on one side of the discharging barrel, an exhaust pipe installed at the top end of the other side of the collection box and a filtering assembly arranged in the collection box. According to the tea hair recycling device, turbid air in the device is sucked into the collecting box by starting the fan, the filter screen filters the air, and meanwhile, the storage hopper receives falling dust and tea hair, so that the tea hair recycling function of the device is achieved, small particles such as the tea hair and broken tea dust are effectively removed and prevented from being mixed into finished tea, and the tea hair recycling effect is improved. Therefore, the purity and the appearance quality of the tea leaves are improved, meanwhile, the dust concentration in the air in the drying environment is reduced, and the natural fragrance and taste of the tea leaves can be kept.

Description

Technical Field

[0001] The utility model relates to the technical field of tea processing, and more specifically, to a drying and screening device for tea processing. Background Art

[0002] The drying and screening device for tea processing is an important and indispensable device in the tea production process. Its main purpose is to remove the excess moisture in the tea, make the tea reach an appropriate moisture content, facilitate subsequent storage and transportation, and at the same time contribute to the formation and stability of the tea aroma. At the same time, it can also remove impurities in the tea such as tea stalks and tea flakes, as well as non-conforming tea such as broken tea and old leaves, so as to improve the purity and quality of the tea.

[0003] After retrieval, a patent with the Chinese patent application number 202220568025.1 discloses a drying and screening device for tea processing, including a screening box. One side of the screening box is provided with a drying box. The top of the drying box is provided with a feed hopper with a cover plate. The inside of the drying box is provided with a stirring component. Through the settings of the drying box, the screening component, the feed hopper and the tea collection box, etc., it enables the staff to simply pour the tea into the drying box through the feed hopper, perform drying treatment on it through the heating device in the drying box, and then tilt the drying box and the screening box by the hydraulic push rod, so as to facilitate the dried tea to enter the screening box through the feed port, and perform screening on it through the screening component. Finally, the screened tea is collected by the tea collection box, which saves time and effort, thus effectively improving the drying and screening efficiency of the tea, further reducing the work intensity of the staff, and then effectively improving the practicability and applicability of the device;

[0004] The above patent still has the following deficiencies: (1) The problem of tea fuzz flying during the tea drying process. Since the device stirs the tea during the drying process, the fine tea fuzz on the tea surface is easily detached and scattered in the air. If the staff is in an environment where tea fuzz is flying for a long time, they may inhale tiny particles such as tea fuzz, which will have an adverse impact on the respiratory system. Since the tea fuzz cannot be recycled, the finished tea mixed in the tea fuzz is wasted, increasing the loss rate of the finished tea;

[0005] (2) The defect that the sieve is easily blocked. Due to the large number of flaky particles in the tea, or the irregular shape of the tea, the phenomenon of blocked holes occurs, directly resulting in a reduction in the screening efficiency, and then affecting the quality and appearance of the tea.

[0006] Therefore, there is an urgent need for a drying and screening device for tea processing to solve the above problems. Summary of the Utility Model

[0007] The object of the present utility model is to address the problem of tea hairs flying during the tea drying process. During the tea drying process, the fine tea hairs on the tea surface are easily turned over and fall off and fly into the air. In an environment with tea hairs flying for a long time, workers may inhale tiny particles such as tea hairs, which has an adverse impact on the respiratory system. Since the tea hairs cannot be recycled, the finished tea mixed in the tea hairs is wasted, increasing the loss rate of the finished tea.

[0008] In order to achieve the above-mentioned invention object, the present utility model provides the following technical solutions:

[0009] A drying and screening device for tea processing, including a base, and further including:

[0010] A heat preservation shell, fixed on one side of the top of the base, and a heater is installed inside the heat preservation shell;

[0011] A rotating drum, rotatably connected inside the heat preservation shell, and a heat conducting plate is fixed on one side inside the rotating drum, a screen is fixed on the other side inside the rotating drum, and a spiral impeller is fixed inside the rotating drum;

[0012] A collection shell, sleeved outside the screen, and a chip discharge port is installed at the bottom of one side of the collection shell;

[0013] A discharge tube, rotatably connected to one side of the rotating drum, and a discharge port is fixed at the bottom of one side of the discharge tube;

[0014] A feed tube, rotatably connected to the other side of the rotating drum, and a hopper is installed at the top of the feed tube;

[0015] A driven wheel, fixed on the outside of the rotating drum, a driving motor is installed on one side of the top of the base, and a driving wheel connected to the driven wheel is connected to the rotating end of the driving motor;

[0016] A dust removal structure, arranged at the top of one side of the discharge tube, wherein the dust removal structure includes a collection box installed on one side of the discharge tube, an air inlet opened at the top of one side of the collection box, an exhaust pipe installed at the top of the other side of the collection box, and a filtering component arranged inside the collection box;

[0017] A cleaning structure, arranged at the top inside the collection shell, for cleaning the screen.

[0018] As a preferred technical solution of the present application, the filtering component includes a blower installed inside the exhaust pipe, a filter screen fixed inside the collection box, and a storage hopper slidably arranged at the bottom inside the collection box.

[0019] As a preferred technical solution of the present application, the collection box is communicated with the discharge tube through the air inlet, and the front view cross-section of the filter screen is in an inclined plane structure.

[0020] As a preferred technical solution of the present application, a plug-in structure is formed between the storage hopper and the collection box, and an integrally welded structure is formed between the collection box and the discharge cylinder.

[0021] As a preferred technical solution of the present application, the cleaning structure includes a fixing piece fixed to the top end inside the collection shell, a connecting spring fixed to the bottom end of the fixing piece, a vibrating plate installed at the bottom end of the connecting spring, an electromagnetic vibrator installed at the top end of the vibrating plate, and a cleaning brush fixed to the bottom end of the vibrating plate.

[0022] As a preferred technical solution of the present application, several groups of connecting springs are arranged between the fixing piece and the vibrating plate, and the several groups of connecting springs are evenly distributed between the fixing piece and the vibrating plate.

[0023] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0024] In the solution of the present application:

[0025] 1. By starting the fan to suck the turbid air inside the device into the collection box, the filter screen filters the air, and at the same time, the storage hopper catches the falling dust and tea hairs, thereby realizing the tea hair recovery function of this device, effectively removing tiny particles such as tea hairs and broken tea powder, preventing them from mixing into the finished tea, thus improving the purity and appearance quality of the tea, and at the same time reducing the dust concentration in the air of the drying environment, which helps to maintain the natural aroma and taste of the tea;

[0026] 2. By using the cleaning brush to clean the surface of the sieve mesh and starting the electromagnetic vibrator to improve the cleaning effect of the cleaning brush by vibration, the sieve mesh cleaning function of this device is realized, which is convenient for cleaning the surface of the sieve mesh, keeping the sieve mesh unobstructed, ensuring the screening effect of the device, and at the same time ensuring the quality and appearance of the tea. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is one of the structural schematic diagrams of the present utility model;

[0028] Figure 2 is the second structural schematic diagram of the present utility model;

[0029] Figure 3 is the three-dimensional sectional structural schematic diagram of the dust removal structure provided by the present utility model;

[0030] Figure 4 is the three-dimensional sectional structural schematic diagram of the cleaning structure provided by the present utility model.

[0031] Labels in the figure: 1. Base; 2. Chip discharge port; 3. Driving wheel; 4. Driving motor; 5. Driven wheel; 6. Rotary drum; 7. Feed cylinder; 8. Cleaning structure; 801. Fixed plate; 802. Vibration plate; 803. Cleaning brush; 804. Electromagnetic vibrator; 805. Connecting spring; 9. Dust removal structure; 901. Collection box; 902. Exhaust pipe; 903. Fan; 904. Storage hopper; 905. Filter screen; 906. Air inlet; 10. Hopper; 11. Heat preservation shell; 12. Collection shell; 13. Discharge cylinder; 14. Discharge port; 15. Screw impeller; 16. Heat conducting plate; 17. Screen; 18. Heater. Detailed implementation manners

[0032] To make the purposes, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some but not all of the embodiments of the present utility model.

[0033] As Figures 1-4 shown, a drying and screening device for tea processing proposed in this implementation manner includes a base 1, and further includes:

[0034] A heat preservation shell 11, fixed on one side of the top end of the base 1, and a heater 18 is installed inside the heat preservation shell 11;

[0035] A rotary drum 6, rotatably connected inside the heat preservation shell 11, and a heat conducting plate 16 is fixed on one side inside the rotary drum 6, a screen 17 is fixed on the other side inside the rotary drum 6, and a screw impeller 15 is fixed inside the rotary drum 6;

[0036] A collection shell 12, sleeved outside the screen 17, and a chip discharge port 2 is installed at the bottom end of one side of the collection shell 12;

[0037] A discharge cylinder 13, rotatably connected to one side of the rotary drum 6, and a discharge port 14 is fixed at the bottom end of one side of the discharge cylinder 13;

[0038] A feed cylinder 7, rotatably connected to the other side of the rotary drum 6, and a hopper 10 is installed at the top end of the feed cylinder 7;

[0039] A driven wheel 5, fixed on the outside of the rotary drum 6, a driving motor 4 is installed on one side of the top end of the base 1, and the rotating end of the driving motor 4 is connected to a driving wheel 3 connected to the driven wheel 5;

[0040] A dust removal structure 9, arranged at the top end of one side of the discharge cylinder 13, wherein the dust removal structure 9 includes a collection box 901 installed on one side of the discharge cylinder 13, an air inlet 906 opened at the top end of one side of the collection box 901, an exhaust pipe 902 installed at the top end of the other side of the collection box 901, and a filtering component arranged inside the collection box 901;

[0041] The cleaning structure 8 is arranged at the top inside the collection shell 12 and is used for cleaning the screen 17.

[0042] As Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, as a preferred embodiment, on the basis of the above method, further, the filtering component includes a fan 903 installed inside the exhaust pipe 902, a filter screen 905 fixed inside the collection box 901, and a storage hopper 904 sliding at the bottom end inside the collection box 901. The collection box 901 is communicated with the discharge cylinder 13 through the air inlet 906. The front view cross-section of the filter screen 905 is in an inclined surface structure. A plug-in structure is formed between the storage hopper 904 and the collection box 901. A welded integrated structure is formed between the collection box 901 and the discharge cylinder 13. By starting the fan 903 to discharge the air inside the collection box 901, the collection box 901 inhales the turbid air inside the device through the air inlet 906. At the same time, the filter screen 905 filters the air, so that the dust and tea hairs in the air adhere to the surface of the filter screen 905 and fall downward under the influence of gravity. The storage hopper 904 is used to pick up the fallen dust and tea hairs. Pulling the storage hopper 904 out of the inside of the collection box 901 can process the dust and tea hairs.

[0043] As Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, as a preferred embodiment, on the basis of the above method, further, the cleaning structure 8 includes a fixing piece 801 fixed at the top inside the collection shell 12, a connecting spring 805 fixed at the bottom end of the fixing piece 801, a vibrating plate 802 installed at the bottom end of the connecting spring 805, an electromagnetic vibrator 804 installed at the top end of the vibrating plate 802, and a cleaning brush 803 fixed at the bottom end of the vibrating plate 802. A plurality of groups of connecting springs 805 are arranged between the fixing piece 801 and the vibrating plate 802, and the plurality of groups of connecting springs 805 are equally spaced between the fixing piece 801 and the vibrating plate 802. During the rotation of the rotary drum 6 driving the screen 17, the surface of the screen 17 is cleaned by the cleaning brush 803. The electromagnetic vibrator 804 is started to drive the vibrating plate 802 and the cleaning brush 803 to vibrate at high speed. By using vibration, it is convenient for the cleaning brush 803 to shake off the debris on the surface of the screen 17 and improve the cleaning effect. The vibrating plate 802 is supported and fixed by the connecting spring 805, so that the electromagnetic vibrator 804 can drive the vibrating plate 802 to vibrate.

[0044] Specifically, when the drying and screening device for tea processing is in use: The tea is poured into the interior of the feed cylinder 7 through the hopper 10. Immediately afterwards, the feed cylinder 7 conveys the tea into the rotating cylinder 6. The heater 18 is started to generate heat to heat the heat conduction plate 16, thereby drying the tea. The driving motor 4 is started to drive the driven wheel 5 to rotate through the driving wheel 3, thereby driving the rotating cylinder 6 to rotate, causing the rotating cylinder 6 to drive the tea to continuously tumble through the spiral impeller 15, making the tea evenly heated. The dried tea moves to the surface of the screen 17, and the tea is screened through the holes on the surface of the screen 17 to remove debris and foreign objects in the tea. The debris and foreign objects are discharged through the chip discharge port 2. The surface of the screen 17 is cleaned by the cleaning structure 8 to keep the screen 17 unobstructed. The processed tea is received through the discharge cylinder 13 and exported through the discharge port 14, and the air inside the device is dusted by the dust removal structure 9.

[0045] By starting the blower 903 to discharge the air inside the collection box 901, the collection box 901 sucks the turbid air inside the device through the air inlet 906. At the same time, the filter screen 905 filters the air, causing the dust and tea hairs in the air to adhere to the surface of the filter screen 905 and fall downward under the influence of gravity. The falling dust and tea hairs are received by the storage hopper 904. By pulling the storage hopper 904 out of the interior of the collection box 901, the dust and tea hairs can be processed.

[0046] During the process of the rotating cylinder 6 driving the screen 17 to rotate, the surface of the screen 17 is cleaned by the cleaning brush 803. The electromagnetic vibrator 804 is started to drive the vibrating plate 802 and the cleaning brush 803 to vibrate at high speed, and the vibration is used to facilitate the cleaning brush 803 to shake off the debris on the surface of the screen 17, improving the cleaning effect. The vibrating plate 802 is supported and fixed by the connecting spring 805 to facilitate the electromagnetic vibrator 804 to drive the vibrating plate 802 to vibrate.

[0047] The above embodiments are only used to illustrate the present invention and do not limit the technical solutions described in the present invention. Although this specification has described the present invention in detail with reference to the above respective embodiments, the present invention is not limited to the above specific implementation manners. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and their improvements that do not depart from the spirit and scope of the invention are covered by the scope of the claims of the present invention.

Claims

1. A drying and screening device for tea processing, comprising a base (1), characterized in that: Also includes: A heat-insulating shell (11) is fixed to one side of the top end of the base (1), and a heater (18) is installed inside the heat-insulating shell (11); A rotating drum (6) is rotatably connected to the interior of the heat-insulating shell (11), a heat-conducting plate (16) is fixed on one side of the interior of the rotating drum (6), a screen (17) is fixed on the other side of the interior of the rotating drum (6), and a spiral impeller (15) is fixed on the interior of the rotating drum (6); A collecting shell (12) is sleeved on the outside of the screen (17), and a chip discharge port (2) is installed at the bottom end of one side of the collecting shell (12); A discharge cylinder (13) is rotatably connected to one side of the rotating cylinder (6), and a discharge port (14) is fixed at the bottom end of one side of the discharge cylinder (13); A feed cylinder (7) is rotatably connected to the other side of the rotating cylinder (6), and a hopper (10) is installed at the top of the feed cylinder (7); A driven wheel (5) is fixed on the outside of the rotating drum (6); a driving motor (4) is installed on one side of the top of the base (1); a rotating end of the driving motor (4) is connected to a driving wheel (3) connected to the driven wheel (5); A dust removal structure (9) is arranged at the top of one side of the discharge barrel (13), wherein the dust removal structure (9) comprises a collection box (901) installed on one side of the discharge barrel (13), an air inlet (906) opened at the top of one side of the collection box (901), an exhaust pipe (902) installed at the top of the other side of the collection box (901), and a filter assembly arranged inside the collection box (901); The cleaning structure (8) is arranged at the top end of the collecting shell (12) and is used to clean the screen (17).

2. A drying and screening device for tea processing according to claim 1, characterized in that: The filter assembly comprises a fan (903) installed inside the exhaust pipe (902), a filter screen (905) fixed inside the collection box (901), and a storage bucket (904) sliding at the bottom end of the collection box (901).

3. A drying and screening device for tea processing according to claim 2, characterized in that: The collecting box (901) is connected to the discharge barrel (13) via an air inlet (906); the front view cross section of the filter screen (905) is an inclined structure.

4. A drying and screening device for tea processing according to claim 2, characterized in that: The storage bucket (904) and the collection box (901) form a plug-in structure, and the collection box (901) and the discharge barrel (13) form a welded integrated structure.

5. A drying and screening device for tea processing according to claim 1, characterized in that: The cleaning structure (8) comprises a fixing plate (801) fixed to the top end of the collection shell (12), a connecting spring (805) fixed to the bottom end of the fixing plate (801), a vibration plate (802) installed at the bottom end of the connecting spring (805), an electromagnetic vibrator (804) installed at the top end of the vibration plate (802), and a cleaning brush (803) fixed to the bottom end of the vibration plate (802).

6. A drying and screening device for tea processing according to claim 5, characterized in that: A plurality of groups of the connecting springs (805) are arranged between the fixing plate (801) and the vibration plate (802), and the plurality of groups of connecting springs (805) are distributed at equal intervals between the fixing plate (801) and the vibration plate (802).

Images