Microwave tea leaf de-enzyming machine

Abstract

The application discloses a microwave tea leaf de-enzyme machine, which comprises a rack, a de-enzyme roller, a transmission system, a microwave heating system, a feeding port, a discharging port and an axial flow fan; the de-enzyme roller is rotatably installed on the rack; a plurality of stirring fins are uniformly arranged in the de-enzyme roller along an axial direction; the stirring fins are fixedly connected with the inner wall of the de-enzyme roller and are used for disturbing and conveying tea leaves. The microwave tea leaf de-enzyme machine has the advantages of stable transmission structure, uniform disturbance and conveying of tea leaves, inhibition of microwave, high energy recycling rate, low energy consumption, cost saving, guarantee of de-enzyme quality and the like.

Description

Technical Field

[0001] This invention relates to the field of tea processing technology, specifically to a microwave tea fixing machine. Background Technology

[0002] Fixing is a key step in tea processing. Its core purpose is to quickly destroy the activity of polyphenol oxidase in tea leaves through high temperature, preventing the tea leaves from oxidizing and turning red. At the same time, it evaporates some moisture, making the tea leaves softer and easier to process in subsequent steps such as rolling, while also preserving the natural aroma and color of the tea leaves.

[0003] Existing tea fixing machines are mainly divided into two categories: traditional heating type (such as coal-fired, gas-fired, and electric heating) and microwave heating type. Traditional heating fixing machines suffer from uneven heating, high energy consumption, easy scorching of edges and leaves, and environmental pollution. While existing microwave heating fixing machines have advantages such as fast heating speed, low energy consumption, and cleanliness, they generally suffer from uneven tea leaf conveying and poor uniformity of agitation, resulting in some tea leaves being over-fixed and others not being fully fixed, ultimately affecting the quality of the tea. In addition, the transmission system of existing microwave fixing machines lacks stability, and is prone to malfunctions such as transmission slippage and excessive noise, affecting the continuous and stable operation of the equipment.

[0004] Existing microwave blanching machines suffer from microwave leakage that can harm the human body during operation. Furthermore, the associated circulation devices have low utilization rates for the high-temperature and humid air generated during operation, resulting in high energy consumption. Consequently, they fail to achieve the goals of reducing microwave harm to the human body, achieving efficient energy recovery and utilization, reducing energy consumption, and saving costs.

[0005] In summary, there is an urgent need for a microwave tea fixing machine that features a stable transmission structure, can achieve uniform disturbance and transport of tea leaves, suppress microwaves to reduce the harm of microwaves to the human body, has a high energy recovery and utilization rate, reduces energy consumption, saves costs, and ensures the quality of tea fixing. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a microwave tea fixing machine to overcome the defects mentioned in the background art.

[0007] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows: a microwave tea fixing machine, comprising a frame, a fixing drum, a transmission system, a microwave heating system, a feed inlet, a discharge outlet, and an axial flow fan; the fixing drum is rotatably mounted on the frame, and a plurality of stirring fins are evenly arranged axially inside the fixing drum, the stirring fins being fixedly connected to the inner wall of the fixing drum, and the stirring fins being used to agitate and transport the tea leaves.

[0008] Preferably, the transmission system includes a motor, a belt drive assembly, and a chain drive assembly. The motor is fixedly mounted on the frame. The output shaft of the motor is connected to the chain drive assembly through the belt drive assembly. The end of the chain drive assembly away from the belt drive assembly is connected to the blanching drum. The motor drives the blanching drum to rotate through the coordinated operation of the belt drive assembly and the chain drive assembly.

[0009] Preferably, the microwave heating system includes a microwave generator, which is fixedly installed on the frame and positioned corresponding to the outer periphery of the fixing drum. The microwave generator is used to emit microwaves into the fixing drum to heat the tea leaves.

[0010] Preferably, the feed inlet is located at one end of the fixing drum and communicates with the interior of the fixing drum, for conveying the tea leaves to be fixed into the fixing drum.

[0011] Preferably, the discharge device includes a discharge port, which is located at the end of the fixing drum away from the feed port and communicates with the interior of the fixing drum, for discharging the tea leaves after fixing.

[0012] Preferably, the belt drive assembly includes a driving pulley, a driven pulley, and a drive belt. The driving pulley is fixedly mounted on the output shaft of the motor, the driven pulley is rotatably mounted on the frame via a rotating shaft, and the drive belt is sleeved between the driving pulley and the driven pulley.

[0013] Preferably, the chain drive assembly includes a driving sprocket, a driven sprocket, and a drive chain. The driving sprocket is fixedly sleeved on the shaft corresponding to the driven pulley, the driven sprocket is fixedly sleeved on the end of the blanching drum, and the drive chain is sleeved between the driving sprocket and the driven sprocket.

[0014] Preferably, the microwave heating system further includes a microwave controller and a temperature sensor. The temperature sensor is disposed inside the blanching drum and is electrically connected to the microwave controller. The microwave controller is electrically connected to the microwave generator.

[0015] Preferably, it also includes a hot air circulation device, which includes an air inlet pipe, the air inlet pipe is placed on an axial flow fan and connected to a dehumidifier, the dehumidifier is connected to an air outlet pipe, and the air outlet pipe is connected to the blanching drum.

[0016] Preferably, it also includes a microwave suppression structure, which includes a baffle plate. Two symmetrically connected flow guide grilles are fixedly disposed on the baffle plate. The flow guide grilles are connected to a water pump. The microwave suppression structure is disposed inside the blanching drum.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: The structural design of the transmission system ensures that the fixing drum maintains uniform agitation, allowing the tea leaves to be heated evenly during the fixing process, achieving precise heating and improving the uniformity and quality stability of the tea leaves during fixing.

[0018] The design of the microwave suppression structure and metal shell achieves high microwave absorption efficiency and reduces the harm of microwaves to the human body.

[0019] By combining an axial flow fan with an inlet duct, dehumidifier, and outlet duct, and using a hollow aluminum alloy tube body, the energy recovery and utilization rate is improved, energy consumption is reduced, and costs are saved. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a schematic diagram of the transmission system structure of the present invention; Figure 4 This is a perspective view of the present invention; Figure 5 This is a cross-sectional view of the microwave suppression structure of the present invention. Detailed Implementation

[0021] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding the present invention, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0022] Reference Figure 1-5 As shown, a microwave tea fixing machine includes a frame 1, a fixing drum 2, a transmission system 3, a microwave heating system 4, a feed inlet 5, a discharge outlet 6, and an axial flow fan 8. The fixing drum 2 is rotatably mounted on the frame 1. A plurality of stirring fins 201 are evenly arranged axially inside the fixing drum 2. The stirring fins 201 are fixedly connected to the inner wall of the fixing drum 2. The stirring fins 201 are used to agitate and convey the tea leaves.

[0023] Specifically, the transmission system 3 includes a motor 301, a belt drive assembly 302, and a chain drive assembly 303. The motor 301 is fixedly mounted on the frame 1. The output shaft of the motor 301 is connected to the chain drive assembly 303 through the belt drive assembly 302. The end of the chain drive assembly 303 away from the belt drive assembly 302 is connected to the blanching drum 2. The motor 301 drives the blanching drum 2 to rotate through the coordinated operation of the belt drive assembly 302 and the chain drive assembly 303.

[0024] Specifically, the microwave heating system 4 includes a microwave generator 401, which is fixedly installed on the frame 1 and is arranged around the outer periphery of the fixing drum 2. The microwave generator 401 is used to emit microwaves into the fixing drum 2 to heat the tea leaves.

[0025] Specifically, the feed inlet 5 is located at one end of the fixing drum 2 and communicates with the interior of the fixing drum 2, and is used to feed the tea leaves to be fixed into the fixing drum 2.

[0026] Specifically, the discharge port 6 is located at the end of the fixing drum 2 away from the feed port 5 and is connected to the interior of the fixing drum 2, and is used to discharge the tea leaves after fixing.

[0027] Furthermore, the belt drive assembly 302 includes a driving pulley 3021, a driven pulley 3022, and a drive belt 3023. The driving pulley 3021 is fixedly sleeved on the output shaft of the motor 301, the driven pulley 3022 is rotatably mounted on the frame 1 via a rotating shaft, and the drive belt 3023 is sleeved between the driving pulley 3021 and the driven pulley 3022.

[0028] Furthermore, the chain drive assembly 303 includes a drive sprocket 3031, a driven sprocket 3032, and a drive chain 3033. The drive sprocket 3031 is fixedly sleeved on the shaft corresponding to the driven pulley 3022, the driven sprocket 3032 is fixedly sleeved on the end of the blanching roller 2, and the drive chain 3033 is sleeved between the drive sprocket 3031 and the driven sprocket 3032.

[0029] Furthermore, the microwave heating system 4 also includes a microwave controller and a temperature sensor. The temperature sensor is disposed inside the blanching drum 2. The temperature sensor is electrically connected to the microwave controller, and the microwave controller is electrically connected to the microwave generator 401.

[0030] Furthermore, it also includes a hot air circulation device 7, which includes an air inlet pipe 701, which is placed on an axial flow fan 8 and connected to a dehumidifier 702. The dehumidifier 702 is connected to an air outlet pipe 703, which is connected to the blanching roller 2.

[0031] Furthermore, it also includes a microwave suppression structure 9, which includes a baffle plate 901. Two symmetrically connected guide grilles 902 are fixedly disposed on the baffle plate 901. The guide grilles 902 are connected to the water pump 903. The microwave suppression structure 9 is disposed inside the blanching drum 2.

[0032] The working principle of this invention is as follows: Motor 301 drives the fixing drum 2 to rotate via belt drive 302 and chain drive assembly 303. Tea leaves enter the drum through inlet 5. The stirring fins 201 inside the fixing drum 2 agitate and transport the tea leaves. Microwave generator 401 emits microwaves to heat the tea leaves. After fixing, the tea leaves are discharged through outlet 6. The hot air circulation device 7 generates high-temperature, humid air during microwave fixing, which is then sent to dehumidifier 702 through inlet pipe 701 connected to axial flow fan 8. Dehumidifier 702 dries the high-temperature, humid air and then sends the dried hot air back into the fixing drum 2 through outlet pipe 703, achieving energy recovery and reducing energy consumption. Microwave suppression structure 9 and metal casing suppress microwave leakage. The microwave power is automatically adjusted based on temperature and humidity sensor feedback, controlling the drum rotation speed to match the fixing process of different tea varieties.

[0033] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and these variations still fall within the protection scope of the present invention.

Claims

1. A microwave tea fixing machine, characterized in that: It includes a frame (1), a fixing drum (2), a transmission system (3), a microwave heating system (4), a feed inlet (5), a discharge outlet (6), and an axial flow fan (8); the fixing drum (2) is rotatably mounted on the frame (1), and a number of stirring fins (201) are evenly arranged along the axial direction inside the fixing drum (2). The stirring fins (201) are fixedly connected to the inner wall of the fixing drum (2), and the stirring fins (201) are used to agitate and transport the tea leaves.

2. The microwave tea fixing machine according to claim 1, characterized in that: The transmission system (3) includes a motor (301), a belt drive assembly (302), and a chain drive assembly (303). The motor (301) is fixedly installed on the frame (1). The output shaft of the motor (301) is connected to the chain drive assembly (303) through the belt drive assembly (302). The end of the chain drive assembly (303) away from the belt drive assembly (302) is connected to the blanching drum (2). The motor (301) drives the blanching drum (2) to rotate through the coordinated cooperation of the belt drive assembly (302) and the chain drive assembly (303).

3. The microwave tea fixing machine according to claim 1, characterized in that: The microwave heating system (4) includes a microwave generator (401), which is fixedly installed on the frame (1) and is arranged on the outer periphery of the fixing drum (2). The microwave generator (401) is used to emit microwaves into the fixing drum (2) to heat the tea leaves.

4. The microwave tea fixing machine according to claim 1, characterized in that: The feed inlet (5) is located at one end of the fixing drum (2) and communicates with the interior of the fixing drum (2) for conveying tea leaves to be fixed into the fixing drum (2).

5. The microwave tea fixing machine according to claim 1, characterized in that: The discharge port (6) is located at one end of the fixing drum (2) away from the feed port (5) and is connected to the interior of the fixing drum (2) for discharging the tea leaves after fixing.

6. The microwave tea fixing machine according to claim 2, characterized in that: The belt drive assembly (302) includes a driving pulley (3021), a driven pulley (3022), and a drive belt (3023). The driving pulley (3021) is fixedly mounted on the output shaft of the motor (301). The driven pulley (3022) is rotatably mounted on the frame (1) via a rotating shaft. The drive belt (3023) is mounted between the driving pulley (3021) and the driven pulley (3022).

7. The microwave tea fixing machine according to claim 2, characterized in that: The chain drive assembly (303) includes a drive sprocket (3031), a driven sprocket (3032), and a drive chain (3033). The drive sprocket (3031) is fixedly mounted on the shaft corresponding to the driven pulley (3022). The driven sprocket (3032) is fixedly mounted on the end of the blanching roller (2). The drive chain (3033) is mounted between the drive sprocket (3031) and the driven sprocket (3032).

8. The microwave tea fixing machine according to claim 1, characterized in that: The microwave heating system (4) also includes a microwave controller and a temperature sensor. The temperature sensor is located inside the blanching drum (2). The temperature sensor is electrically connected to the microwave controller, and the microwave controller is electrically connected to the microwave generator (401).

9. The microwave tea fixing machine according to claim 1, characterized in that: It also includes a hot air circulation device (7), which includes an air inlet pipe (701), the air inlet pipe (701) is placed on an axial flow fan (8) and connected to a dehumidifier (702), the dehumidifier (702) is connected to an air outlet pipe (703), and the air outlet pipe (703) is connected to the blanching drum (2).

10. The microwave tea fixing machine according to claim 1, characterized in that: It also includes a microwave suppression structure (9), which includes a baffle plate (901). Two symmetrically connected guide grilles (902) are fixedly installed on the baffle plate (901). The guide grilles (902) are connected to the water pump (903). The microwave suppression structure (9) is located inside the blanching drum (2).

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