Conveying and cooling device for black tea refining processing production line

Abstract

A conveying and cooling device of a black tea refined processing production line comprises a belt conveyor, air supply boxes are installed in the belt conveyor and located in the space between a driving roller and a driven roller and the space between an upper belt layer and a lower belt layer, inward supporting plates are arranged at the tops of the air supply boxes, and the upper belt layer is located on the supporting plates; an L-shaped plate is further arranged on the inner side of the supporting plate, the air uniformizing plate is installed on the L-shaped plate, a plurality of ventilation holes are distributed in the air uniformizing plate, and an air uniformizing cavity is formed between the air uniformizing plate and the upper layer of the belt. The inward supporting plate is arranged at the top of the air supply box, the L-shaped plate is arranged on the inner side of the supporting plate, the air uniformizing plate is installed on the L-shaped plate, the air uniformizing cavity is formed between the air uniformizing plate and the upper layer of the belt, air in the air supply box is evenly blown out from the air uniformizing plate, and therefore the air uniformizing cavity can evenly supply air to the upper layer of the belt, and the cooling effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of black tea refining and processing equipment, in particular to a conveying and cooling device for a black tea refining and processing production line. Background Art

[0002] When refining black tea, the tea leaves need to be dried and processed. After drying, the tea leaves need to be cooled. The existing cooling device is to install multiple fans above the belt conveyor, such as the structure in CN217446498U, and blow air to the belt of the belt conveyor through the fan, so as to cool the tea leaves on the belt. Because the air is discharged downward, if the wind force is too large, the tea leaves will be blown out of the belt conveyor. If the wind force is reduced, the tea leaves cannot be cooled quickly due to the limited coverage area of ​​the fan. There are two ways to solve this problem. One is to add more fans along the length direction of the belt conveyor, and the other is to reduce the running speed of the belt conveyor. The above-mentioned first method will increase the electricity cost, and it will also be limited by the length of the belt conveyor. The above-mentioned second method will reduce production efficiency. Therefore, the existing belt conveyor has been improved.

[0003] After searching, Chinese patent document CN208300785U, published (announcement) date: 2019.01.01, discloses a tea rapid cooling device, including a frame and a conveyor belt device mounted in the frame, the conveyor belt of the conveyor belt device is an air-permeable conveyor belt, the conveyor belt includes an upper conveyor belt and a lower conveyor belt, a bellows is arranged directly below the upper conveyor belt along the conveying direction of the upper conveyor belt, the top of the bellows is open, the bellows is fixedly connected to the frame, an air inlet is arranged on the side wall of the bellows, an air cooler is installed on the frame outside the bellows, and the air outlet of the air cooler is connected to the air inlet of the bellows through a pipe. Its characteristic is that it can cool the tea leaves from the lower side of the conveyor belt, and the cooling length is equivalent to the length of the conveyor belt device. Without reducing the running speed of the belt conveyor, the cooling effect is good. Its disadvantage is that the air inlet is located at one end of the bellows, which will cause the air volume near the air inlet to be larger, while the air volume away from the air inlet is smaller, making the wind blown out from the conveyor belt uneven and reducing the cooling effect. Utility Model Content

[0004] The technical problem to be solved by the utility model is: to solve the problems existing in the above-mentioned background technology, to provide a conveying and cooling device for a black tea refining and processing production line, and to improve the cooling effect.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a conveying and cooling device for a black tea refining processing production line, comprising a belt conveyor, in which an air supply box is installed in the space between the active roller and the driven roller and between the upper layer of the belt and the lower layer of the belt, the top of the air supply box is open and close to the upper layer of the belt, the side wall of the air supply box is provided with an air supply port, and the air supply port is connected with the air outlet of the fan; the belt of the belt conveyor is provided with ventilation holes;

[0006] The top of the air supply box is provided with an inward support plate, and the upper layer of the belt is located on the support plate;

[0007] An L-shaped plate is also provided on the inner side of the support plate, and a wind uniforming plate is installed on the L-shaped plate. A plurality of ventilation holes are arranged on the wind uniforming plate, and a wind uniforming cavity is formed between the wind uniforming plate and the upper layer of the belt.

[0008] The fan is installed at the bottom of the belt conveyor, and the air outlet of the fan is connected with the air supply port through a pipeline.

[0009] The air supply port is equipped with a bell-shaped air cover, and an air inlet pipe opening is arranged on the bell-shaped air cover. The air outlet of the fan is connected with the air inlet pipe opening through a pipeline.

[0010] An air filter cover is installed outside the fan.

[0011] The outer shell of the belt conveyor is provided with inward transverse plates and longitudinal plates connected to the inner sides of the transverse plates on both sides in the width direction of the belt conveyor. The longitudinal plates are spaced a distance from the support plates, and the upper layer of the belt extends into the gap between the longitudinal plates and the support plates.

[0012] A side strip is installed on the inner side of the longitudinal plate, and the side strip closes the gap between the longitudinal plate and the upper layer of the belt.

[0013] The utility model has the following beneficial effects:

[0014] 1. The utility model arranges an inward support plate on the top of the air supply box, and arranges an L-shaped plate on the inner side of the support plate. An air uniformity plate is installed on the L-shaped plate. An air uniformity cavity is formed between the air uniformity plate and the upper layer of the belt. The wind in the air supply box is evenly blown out from the air uniformity plate, so that the air uniformity cavity can evenly supply air to the upper layer of the belt, thereby improving the cooling effect.

[0015] 2. The outer shell of the belt conveyor of the utility model is provided with inwardly facing transverse plates and longitudinal plates connected to the inner side of the transverse plates on both sides of the width direction of the belt conveyor, and there is a distance between the longitudinal plates and the support plates, and the upper layer of the belt extends into the gap between the longitudinal plates and the support plates. The longitudinal plates are higher than the upper layer of the belt, thereby forming a barrier for the tea leaves to prevent the tea leaves from falling from both sides.

[0016] 3. The utility model has side strips installed on the inner side of the longitudinal plate, which close the gap between the longitudinal plate and the upper belt layer. The side strips have two functions: one is to close the gap between the longitudinal plate and the upper belt layer, so that tea leaves will not enter the longitudinal plate; the other is to compress the upper belt layer to reduce air leakage between the upper belt layer and the support plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 It is a schematic diagram of the main structure of the utility model.

[0019] Figure 2 for Figure 1 Schematic diagram of the AA section structure.

[0020] Figure 3 for Figure 2 Schematic diagram of the BB cross-section structure.

[0021] Figure 4 for Figure 1 Schematic diagram of the CC cross-section structure.

[0022] Figure 5 for Figure 2 Schematic diagram of the local enlarged structure at point D in the middle.

[0023] In the figure:

[0024] Belt conveyor 10, housing 11, transverse plate 111, longitudinal plate 112, side strip 113, upper belt layer 12, lower belt layer 13, active roller 14, driven roller 15, motor 16, support 17, driven wheel 18;

[0025] Air supply box 20, support plate 201, L-shaped plate 202, air uniformity plate 203, air supply port 21, bell-shaped air cover 22, air inlet port 23, pipeline 24, air uniformity chamber 25;

[0026] Fan 30, air filter cover 31. DETAILED DESCRIPTION

[0027] like Figure 1-5As shown, the conveying and cooling device of the black tea refining production line includes a belt conveyor 10. In the belt conveyor 10, an air supply box 20 is installed in the space between the active roller 14 and the driven roller 15 and between the upper belt layer 12 and the lower belt layer 13. The top of the air supply box 20 is open and close to the upper belt layer 12. The side wall of the air supply box 20 is provided with an air supply port 21, which is connected to the air outlet of the fan 30. The belt of the belt conveyor 10 is provided with ventilation holes. When in use, a motor 16 is installed on the lower side of the belt conveyor 10, and the motor 16 is connected to the active roller 14 by transmission. Four pillars 17 are installed at the four corners of the belt conveyor 10. Figure 1 , 4 The active roller 14 and the driven roller 15 are installed in the housing 11 through a bearing seat, a driven wheel 18 is installed at one end of the central axis of the active roller 14, and a driving wheel is installed on the output shaft of the motor 16. The driving wheel and the driven wheel 18 are driven by a belt or a chain.

[0028] The top of the air supply box 20 is provided with an inward support plate 201, and the upper belt layer 12 is located on the support plate 201. An L-shaped plate 202 is also provided on the inner side of the support plate 201, and a wind uniformity plate 203 is installed on the L-shaped plate 202. The wind uniformity plate 203 is provided with a plurality of ventilation holes, and a wind uniformity cavity 25 is formed between the wind uniformity plate 203 and the upper belt layer 12. The support plate 201 can not only support the upper belt layer 12, but also play a sealing role to prevent the wind in the wind uniformity cavity 25 from leaking from the edge of the belt. In this embodiment, see Figure 5 The wind uniforming plate 203 is mounted on the L-shaped plate 202 by bolts.

[0029] By setting an inward support plate 201 on the top of the air supply box 20, and setting an L-shaped plate 202 on the inner side of the support plate 201, an air uniformity plate 203 is installed on the L-shaped plate 202, and an air uniformity cavity 25 is formed between the air uniformity plate 203 and the upper layer of the belt. The wind in the air supply box 20 is evenly blown out from the air uniformity plate 203, so that the air uniformity cavity can evenly supply air to the upper layer of the belt, thereby improving the cooling effect.

[0030] The fan can be installed outside the belt conveyor 10, and the air outlet of the fan is connected to the air supply port 21 through the pipeline 24. In the preferred embodiment, see Figure 1 , 2 The fan 30 is installed at the bottom of the belt conveyor 10, and the air outlet of the fan 30 is connected to the air supply port 21 through the pipeline 24 to form an integrated structure, and does not occupy additional space in the workshop.

[0031] Preferably, the fan 30 is a blower.

[0032] Furthermore, the air supply port 21 is provided with a bell-shaped hood 22, on which an air inlet port 23 is provided, and the air outlet of the fan 30 is connected to the air inlet port 23 through a pipe 24. By providing the bell-shaped hood 22, it is convenient to evenly supply air to the air uniform cavity 25. The width of the end of the bell-shaped hood 22 connected to the air supply port 21 is much greater than the width of the end provided with the air inlet port 23, so that the pressure of the air blown out from the fan 30 will be reduced when passing through the bell-shaped hood 22, thereby making the wind entering the air uniform cavity 25 more balanced.

[0033] Furthermore, an air filter cover 31 is installed outside the fan 30, and the air filter cover 31 filters the air sucked by the fan 30 to prevent debris from entering the air supply box 20 and avoid clogging of the air uniforming plate 203. Specifically, the air filter cover 31 includes a box body with a mesh structure, and a layer of air filter cotton is wrapped outside the box body. The upper side of the box body is open, and a hole is set on one of the sides for the pipeline 24 to pass through. The box body covers the fan 30 from bottom to top and is installed at the bottom of the belt conveyor 10.

[0034] See also Figure 2 , 5 The outer shell 11 of the belt conveyor 10 is provided with inward transverse plates 111 and longitudinal plates 112 connected to the inner side of the transverse plates 111 on both sides of the width direction of the belt conveyor 10, and there is a distance between the longitudinal plates 112 and the support plate 201, and the upper belt layer 12 extends into the gap between the longitudinal plates 112 and the support plate 201. The longitudinal plates 112 are higher than the upper belt layer 12, thereby forming a barrier for the tea leaves to prevent the tea leaves from falling from both sides.

[0035] For further information, see Figure 5 , a side strip 113 is installed on the inner side of the longitudinal plate 112, and the side strip 113 closes the gap between the longitudinal plate 112 and the upper belt layer 12. The side strip has two functions: one is to close the gap between the longitudinal plate 112 and the upper belt layer 12, so that tea leaves will not enter the longitudinal plate 112, and the other is to compress the upper belt layer 12 to reduce air leakage from the upper belt layer 12 and the support plate 201.

[0036] Preferably, the edge strip 113 is a plastic plate or a rubber plate having elasticity and hardness.

[0037] The action process or principle of the utility model is as follows:

[0038] See also Figure 1 , 2When in use, the motor 16 is started to drive the belt on the belt conveyor 10 to rotate, and at the same time the fan 30 is started to supply air to the air supply box 20. Since the air uniform plate 203 is evenly distributed with ventilation holes, the air in the air supply box 20 is blown out from the air uniform plate 203 and enters the air uniform chamber 25, and then blown out from the ventilation holes on the belt of the belt conveyor 10 to cool the tea leaves on the belt of the belt conveyor 10.

Claims

1. A conveying and cooling device for a black tea refining production line, comprising a belt conveyor (10), characterized in that: In the belt conveyor (10), an air supply box (20) is installed in the space between the driving roller (14) and the driven roller (15) and between the upper belt layer (12) and the lower belt layer (13); the top of the air supply box (20) is open and close to the upper belt layer (12); the side wall of the air supply box (20) is provided with an air supply port (21); the air supply port (21) is connected to the air outlet of the fan (30); and ventilation holes are provided on the belt of the belt conveyor (10); An inwardly facing support plate (201) is provided on the top of the air supply box (20), and the upper belt layer (12) is located on the support plate (201); An L-shaped plate (202) is further provided on the inner side of the support plate (201), and an air leveling plate (203) is mounted on the L-shaped plate (202). A plurality of ventilation holes are arranged on the air leveling plate (203), and an air leveling cavity (25) is formed between the air leveling plate (203) and the upper layer (12) of the belt.

2. The conveying and cooling device for the black tea refining production line according to claim 1 is characterized in that: The fan (30) is installed at the bottom of the belt conveyor (10), and the air outlet of the fan (30) is connected to the air supply port (21) via a pipeline (24).

3. The conveying and cooling device for the black tea refining production line according to claim 1 or 2, characterized in that: The air supply port (21) is equipped with a bell-shaped air cover (22), an air inlet pipe opening (23) is provided on the bell-shaped air cover (22), and the air outlet of the fan (30) is connected to the air inlet pipe opening (23) via a pipe (24).

4. The conveying and cooling device for the black tea refining production line according to claim 3 is characterized in that: An air filter cover (31) is installed outside the fan (30).

5. The conveying and cooling device for the black tea refining production line according to claim 1 is characterized in that: The outer shell (11) of the belt conveyor (10) is provided with inwardly facing transverse plates (111) and longitudinal plates (112) connected to the inner sides of the transverse plates (111) on both sides in the width direction of the belt conveyor (10), and there is a distance between the longitudinal plates (112) and the support plates (201), and the upper layer (12) of the belt extends into the gap between the longitudinal plates (112) and the support plates (201).

6. The conveying and cooling device for the black tea refining production line according to claim 5, characterized in that: A side strip (113) is installed on the inner side of the longitudinal plate (112), and the side strip (113) closes the gap between the longitudinal plate (112) and the upper layer (12) of the belt.

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