Double-roller dynamic fixation machine

Abstract

The utility model provides a double-roller dynamic fixation machine, which relates to the technical field of tea processing and comprises a steam fixation device and a roller fixation device. The steam fixation device comprises an inner roller driving motor, an inner roller main chain wheel is fixedly mounted at the output end of the inner roller driving motor, an inner roller driven chain wheel is arranged at the top of the inner roller main chain wheel, and an inner roller chain is arranged on the outer walls of the inner roller driven chain wheel and the inner roller main chain wheel; an inner roller body is arranged outside the inner roller main supporting wheel, and an inner roller driven supporting wheel is arranged at one end of the inner roller body. According to the utility model, through the cooperation of the steam enzyme deactivation device and the roller enzyme deactivation device, secondary enzyme deactivation in the same machine is realized, the problem that the odor of green grass (odor) is not thoroughly deactivated is solved, the three-green quality of the tea leaves is kept while aroma substances in the tea leaves can be effectively converted, and the enzyme deactivation quality of the tea leaves is remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to tea processing technical field especially relates to a double drum dynamic fixation machine. BACKGROUND

[0002] Enshi Yulu tea is the only needle-shaped green tea with steam fixation in the history of China, and its production process originated in the Tang Dynasty and flourished in the Ming and Qing Dynasties. It was listed in the State Non-material Cultural Heritage Protection List in 2014. Due to its unique "steam fixation" process and "tight and straight as pine needle" shape, it is deeply loved by tea drinkers.

[0003] Steam fixation is a necessary condition for the processing technology of Enshi Yulu tea, and it is a characteristic process for forming the green and green color. Steam fixation makes tea fresh leaves lose water and become soft, inhibits the enzymatic oxidation of tea polyphenols in fresh leaves, kills the green smell in tea fresh leaves, retains chlorophyll in leaves, and promotes the emission of its aroma. However, the existing steam fixation machine is a static chain plate transmission fixation, and the steam is not easy to penetrate between the layers of fresh leaves, and the fixation is not uniform, and the green grass (smell) smell is not completely killed. The current mainstream solution is to connect the existing fixation machine with a drum fixation machine for secondary fixation, but there are low efficiency and high energy consumption, which has become a bottleneck for further improving the market competitiveness of Enshi Yulu tea. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the problems of the existing steam fixation machine in the prior art, such as static chain plate transmission fixation, steam not easy to penetrate between layers of fresh leaves, and uneven fixation, and not completely killing the green grass (smell) smell, and proposes a double drum dynamic fixation machine.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a double drum dynamic fixation machine, comprising: a steam fixation device, a drum fixation device;

[0006] The steam fixation device comprises an inner drum driving motor, the output end of the inner drum driving motor is fixedly installed with an inner drum main sprocket, the top of the inner drum main sprocket is provided with an inner drum driven sprocket, the inner drum driven sprocket and the outer wall of the inner drum main sprocket are provided with an inner drum chain, one end of the inner drum driven sprocket is provided with an inner drum main support wheel, the outer part of the inner drum main support wheel is provided with an inner drum body, and one end of the inner drum body is provided with an inner drum driven support wheel;

[0007] The outer drum driving motor is provided with an outer drum main sprocket, and the outer drum main sprocket is provided with an outer drum driven sprocket and an outer drum chain.

[0008] Preferably, the steam fixation device is provided with an upper cover body, one end of the upper cover body is provided with a discharge cover, and the end of the upper cover body away from the discharge cover is fixedly connected with a feeding hopper.

[0009] Preferably, the inner drum main support wheel and the inner drum driven support wheel are arranged on both sides of the inner drum body.

[0010] Preferably, the upper cover body is provided with a steam heat recovery device, the steam heat recovery device comprises an output pipe, the output pipe is arranged on the outer wall of the upper cover body, the top of the upper cover body is provided with an output cavity, the outer wall of the output cavity is fixedly connected with one end of the output pipe, the inside of the upper cover body is provided with a transmission pipe, the outer wall of the upper cover body is provided with a dehumidifying fan, the top of the upper cover body is provided with an input cavity, the output end of the dehumidifying fan is connected with the input cavity, and the outer wall of the dehumidifying fan is provided with a recovery pipe.

[0011] Preferably, the outer drum main support wheel and the outer drum driven support wheel are arranged on both sides of the outer drum body.

[0012] Preferably, the bottom of the upper cover body is provided with a heating device, the heating device comprises a lower cover body, the lower cover body is arranged at the bottom of the upper cover body, the top of the lower cover body is provided with heat insulation cotton, the top of the heat insulation cotton is provided with a steam fixation section heating pipe group and a drum fixation section heating pipe group, the steam fixation section heating pipe group is spaced apart from each other by 10cm, and the groups are spaced apart by 20cm, and the drum fixation section heating pipe group is spaced apart from each other by 10cm, and the groups are spaced apart by 40cm.

[0013] Preferably, the inner drum driving motor is arranged on the outer wall of the lower cover body, the outer drum driving motor is arranged at the bottom of the lower cover body, and the outer wall of the lower cover body is provided with a water supply device.

[0014] Preferably, the outer wall of the upper cover body is provided with a general control cabinet, the general control cabinet comprises an emergency stop control switch, a general power control switch, a steam fixation section temperature controller, a drum fixation section temperature controller, a normal indicator lamp, a fault indicator lamp, an outer drum rotating speed control knob, an inner drum rotating speed control knob, a steam fixation section temperature sensor and a drum fixation section temperature sensor.

[0015] Compared with the prior art, the advantages and positive effects of the utility model lie in,

[0016] 1. In this utility model, the effective combination of steam fixation device and heating device in the steam fixation section realizes dynamic steam fixation, ensuring the uniformity of fixation of fresh tea leaves.

[0017] 2. In this utility model, by combining the steam fixation device and the drum fixation device, a second fixation is achieved in the same machine, which solves the problem of incomplete removal of grassy (stinky) odor. This allows the aroma substances in the tea to be effectively transformed while preserving the three green qualities of the tea, and the fixation quality of the tea is significantly improved.

[0018] 3. In this utility model, the steam heat overflowing from the discharge hood is recovered and utilized through a steam heat recovery device, reducing energy consumption by more than 10%.

[0019] 4. This utility model has the advantages of simple structure and easy implementation, which reduces the equipment investment cost of enterprises. Attached Figure Description

[0020] Figure 1 This utility model provides a left and right isometric view of a double-drum dynamic blanching machine;

[0021] Figure 2 A top view (AA direction) half-sectional view of a double-drum dynamic blanching machine is provided for this utility model;

[0022] Figure 3 A front view of a double-drum dynamic blanching machine is provided for this utility model;

[0023] Figure 4 This utility model presents a schematic diagram of the control cabinet for a dual-drum dynamic blanching machine.

[0024] Legend: 1. Water supply device; 2. Steam blanching device; 201. Inner drum drive motor; 202. Inner drum main sprocket; 203. Inner drum chain; 204. Inner drum driven sprocket; 205. Inner drum main support wheel; 206. Inner drum driven support wheel; 207. Inner drum body; 3. Feed hopper; 4. Steam heat recovery device; 401. Output pipe; 402. Output cavity; 403. Transmission pipe; 404. Dehumidifier; 405. Input cavity; 406. Recovery pipe; 5. Upper cover; 6. Discharge cover; 7. Drum blanching device; 701. Outer drum drive motor; 702. Outer drum main sprocket; 703. Outer drum chain; 704. Outer drum Driven sprocket; 705. Outer drum main support wheel; 706. Outer drum driven support wheel; 707. Outer drum body; 8. Heating device; 801. Lower cover; 802. Steam blanching section heating tube assembly; 803. Drum blanching section heating tube assembly; 804. Insulation cotton; 9. Main control cabinet; 901. Emergency stop control switch; 902. Main power control switch; 903. Steam blanching section temperature controller; 904. Drum blanching section temperature controller; 905. Normal indicator light; 906. Fault indicator light; 907. Outer drum speed control knob; 908. Inner drum speed control knob; 909. Steam blanching section temperature sensor; 910. Drum blanching section temperature sensor. Detailed Implementation

[0025] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0027] Example 1, such as Figures 1-4 As shown, this utility model provides a double-drum dynamic blanching machine, including: a steam blanching device 2 and a drum blanching device 7;

[0028] The steam blanching device 2 includes an inner drum drive motor 201. An inner drum main sprocket 202 is fixedly installed at the output end of the inner drum drive motor 201. An inner drum driven sprocket 204 is provided on the top of the inner drum main sprocket 202. An inner drum chain 203 is provided on the outer wall of the inner drum driven sprocket 204 and the inner drum main sprocket 202. An inner drum main support wheel 205 is provided at one end of the inner drum driven sprocket 204. An inner drum body 207 is provided outside the inner drum main support wheel 205. An inner drum driven support wheel 206 is provided at one end of the inner drum body 207.

[0029] The drum blanching device 7 includes an outer drum drive motor 701. An outer drum main sprocket 702 is fixedly installed at the output end of the outer drum drive motor 701. An outer drum driven sprocket 704 is provided on the top of the outer drum main sprocket 702. An outer drum chain 703 is provided on the outer wall of the outer drum driven sprocket 704 and the outer drum main sprocket 702. An outer drum main support wheel 705 is provided outside the outer drum driven sprocket 704. An outer drum body 707 is provided outside the outer drum main support wheel 705. An outer drum driven support wheel 706 is provided at one end of the outer drum body 707.

[0030] The overall effect of Embodiment 1 is as follows: the inner drum drive motor 201 in the steam fixation device 2 transmits power to the inner drum main sprocket 202. The inner drum main sprocket 202 transmits power to the inner drum driven sprocket 204 via the inner drum chain 203. The inner drum driven sprocket 204 drives the inner drum main support wheel 205 to move, the inner drum main support wheel 205 drives the inner drum body 207 to rotate, and the inner drum body 207 drives the inner drum driven support wheel 206 to rotate. In the inner drum body 207, the tea leaves are tumbled and tossed forward under the action of the guide plate. The high-temperature steam passing through the holes in the drum wall comes into contact with the tumbling tea leaves and rolls out from the discharge port, completing the dynamic steam fixation. The fresh leaves that have undergone dynamic fixation have good uniformity, can effectively remove the grassy smell, and have a good steam fixation effect. In the drum-fired tea device 7, the outer drum drive motor 701 transmits power to the outer drum main sprocket 702. The outer drum main sprocket 702 transmits power to the outer drum driven sprocket 704 via the outer drum chain 703. The outer drum driven sprocket 704 drives the outer drum main support wheel 705 to move, which in turn drives the outer drum body 707 to rotate. The outer drum body 707 then drives the outer drum driven support wheel 706 to rotate. Within the outer drum body 707, the steam-fired tea leaves are tumbled and tossed forward by the guide plate. As the outer drum body 707 rotates, the tea leaves contact the drum wall and fall from the discharge hood 6, completing the secondary drum-fired tea process. The resulting Enshi Yulu tea, produced after this secondary drum-fired tea process, has a high aroma and mellow flavor, exhibits a fresh firing effect, effectively removes the grassy smell, and improves the firing efficiency.

[0031] Example 2, as Figures 1-4As shown, further, an upper cover 5 is provided between the steam fixation devices 2, and a discharge hood 6 is provided at one end of the upper cover 5. A feed hopper 3 is fixedly connected to the end of the upper cover 5 away from the discharge hood 6. The feed hopper 3 is used to transport tea leaves to the steam fixation device 2. The steam fixation device 2 is used for dynamic steam fixation of fresh tea leaves and to transport them to the drum fixation device 7. The drum fixation device 7 is used for secondary fixation of fresh tea leaves and to transport them to the discharge hood 6. The discharge hood 6 is used for tea leaf discharge and steam heat collection to the steam heat recovery device 4. The steam heat recovery device 4 collects the steam heat and then heats it again between the upper cover 5 and the heating device 8 to form hot and humid air, which is then transported to the steam fixation device 2 for fixation.

[0032] Furthermore, two inner roller main support wheels 205 and two inner roller driven support wheels 206 are respectively arranged on both sides of the inner roller body 207.

[0033] Furthermore, a heat recovery device 4 is provided at the top of the upper cover 5. The heat recovery device 4 includes an output pipe 401, which is located on the outer wall of the upper cover 5. An output cavity 402 is provided at the top of the upper cover 5. The outer wall of the output cavity 402 is fixedly connected to one end of the output pipe 401. A transmission pipe 403 is provided inside the upper cover 5. A dehumidifying fan 404 is provided on the outer wall of the upper cover 5. An input cavity 405 is provided at the top of the upper cover 5. The output end of the dehumidifying fan 404 is connected to the input cavity 405. A recovery pipe 406 is provided on the outer wall of the dehumidifying fan 404. Under the action of the dehumidifying fan 404, the recovery pipe 406 in the heat recovery device 4 transports heat to the input cavity 405. The input cavity 405 transports the heat in the discharge hood 6 to the output cavity 402 via the transmission pipe 403. The output cavity 402 transports the heat to the inner roller body 207 via the output pipe 401, thereby realizing heat recovery. The steam heat recovery device 4 recycles and reuses the overflowing steam heat, greatly reducing energy consumption and production costs.

[0034] Furthermore, two outer roller main support wheel 705 and two outer roller driven support wheels 706 are respectively arranged on both sides of the outer roller body 707.

[0035] Furthermore, a heating device 8 is provided at the bottom of the upper cover 5. The heating device 8 includes a lower cover 801, which is located at the bottom of the upper cover 5. A heat insulation cotton 804 is provided on the top of the lower cover 801. A steam blanching section heating tube assembly 802 and a drum blanching section heating tube assembly 803 are provided on the top of the heat insulation cotton 804. The steam blanching section heating tube assemblies 802 are spaced 10cm apart and 20cm apart between groups. The drum blanching section heating tube assemblies 803 are spaced 10cm apart and 40cm apart between groups.

[0036] Furthermore, the inner roller drive motor 201 is located on the outer wall of the lower cover 801, and the outer roller drive motor 701 is located at the bottom of the lower cover 801. A water supply device 1 is installed outside the lower cover 801, which includes a water inlet pipe, an electric ball valve, and a water flow meter. The electric ball valve and the water flow meter are installed on the water inlet pipe to control and detect the water supply. Water droplets falling onto the wall of the outer roller body 707 at the bottom of the inner roller body 207 instantly generate steam. By controlling the water supply, the amount of steam can be precisely adjusted to improve the steam blanching effect.

[0037] Furthermore, a main control cabinet 9 is installed outside the upper cover 5. The main control cabinet 9 includes an emergency stop control switch 901, a main power control switch 902, a steam blanching section temperature controller 903, a drum blanching section temperature controller 904, a normal indicator light 905, a fault indicator light 906, an outer drum speed control knob 907, an inner drum speed control knob 908, a steam blanching section temperature sensor 909, and a drum blanching section temperature sensor 910. The emergency stop control switch 901 is used for emergency stop in case of sudden accidents. The main power control switch 902 is used for power supply and power outage of the machine. The normal indicator light 905 and the fault indicator light 906 are used to display the status of the machine's electrical components. The outer drum speed control knob 907 and the inner drum speed control knob 908 control the speed of the outer drum body 707 and the inner drum body 207, respectively. After detecting the temperature, the steam blanching section temperature sensor 909 sends a signal to the steam blanching section temperature controller 903. The steam blanching section temperature controller 903 compares the signal with the set temperature and adjusts the temperature according to the built-in temperature error change rate. After detecting the temperature, the drum blanching section temperature sensor 910 sends a signal to the drum blanching section temperature controller 904. The drum blanching section temperature controller 904 compares the signal with the set temperature and adjusts the temperature according to the built-in temperature error change rate.

[0038] The overall effect of Embodiment 2 is that the steam heat overflowing from the discharge hood 6 is recovered and utilized through the steam heat recovery device 4, reducing energy consumption by more than 10%.

[0039] Working principle: Taking the processing of one bud and one leaf tea leaves as an example, the leaf input rate is 220 kg / h. The main control cabinet 9 is equipped with an outer drum speed control knob 907 at 25 r / min and an inner drum speed control knob 908 at 20 r / min. The preset temperature controller 903 for the steam processing section is 400℃, and the preset temperature controller 904 for the drum processing section is 200℃. After the temperature reaches the preset value, the electric ball valve is opened, controlling the flow rate to 2 L / min. Water drips from the inlet pipe onto the outer drum body 707 area directly below the inner drum body 207, instantly generating water vapor. After evaporation, it mixes with the high-temperature hot air and is then reheated to form high-temperature hot steam, which is then steadily heated. After the steam and heat mixing temperature in the inner drum body 207 reaches 160-200℃, the steam passes through the cylinder hole of the inner drum body 207 and comes into contact with the tea leaves that are being turned and tossed forward. After about 50 seconds, the steam dynamic fixation is completed and the tea leaves enter the outer drum body 707. Under the action of the guide plate of the outer drum body 707, the tea leaves continue to be turned and tossed forward and come into contact with the inner wall. They absorb the heat from the inner wall of the outer drum and the heat from the hot air in the drum to fix the leaves and dehydrate the surface of the leaves. After about 120 seconds, the tea leaves enter the discharge hood 6 to complete the second fixation and enter the next process. The steam and heat overflowing from the discharge hood 6 are recovered by the steam and heat recovery device 4 and transported to the inner drum body 207 for fixation and recycling.

[0040] This utility model implementation case compares with two blanching methods: steam blanching and steam blanching + drum blanching.

[0041] Comparison 1 uses the 6CSZ-65 steam fixation machine commonly used for Enshi Yulu tea, with a steam temperature of 200℃ and a hot air dehydration temperature of 150℃. Comparison 2 uses the commonly used 6CSZ-65 steam fixation machine (Zhejiang Shangyang Machinery Co., Ltd.), with a steam temperature of 180℃ and a hot air dehydration temperature of 150℃, followed by a 6SCT-100 drum fixation machine, with a fixation temperature of 260℃. The comparison of fixation results is shown in Table 1, and the sensory evaluation comparison is shown in Table 2.

[0042] Table 1 Comparison of the finishing work results

[0043]

[0044] Table 2 Comparison of Sensory Evaluation

[0045]

[0046] Note: Sensory evaluation was conducted according to the green tea evaluation method in GB / T 23776—2018 "Sensory Evaluation Methods for Tea". Appearance, liquor color, aroma, taste, and infused leaf appearance were evaluated, with each item scored out of 100 points. The total score was calculated using a weighted average: Total Quality Score = Appearance × 0.25 + Liquor Color × 0.10 + Aroma × 0.25 + Taste × 0.30 + Infused Leaf Appearance × 0.10.

[0047] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A double-drum dynamic blanching machine, characterized in that, include: Steam blanching device (2), drum blanching device (7); The steam blanching device (2) includes an inner drum drive motor (201), an inner drum main sprocket (202) is fixedly installed at the output end of the inner drum drive motor (201), an inner drum driven sprocket (204) is provided on the top of the inner drum main sprocket (202), an inner drum chain (203) is provided on the outer wall of the inner drum driven sprocket (204) and the inner drum main sprocket (202), an inner drum main support wheel (205) is provided at one end of the inner drum driven sprocket (204), an inner drum body (207) is provided outside the inner drum main support wheel (205), and an inner drum driven support wheel (206) is provided at one end of the inner drum body (207). The roller blanching device (7) includes an outer roller drive motor (701), an outer roller main sprocket (702) is fixedly installed at the output end of the outer roller drive motor (701), an outer roller driven sprocket (704) is provided on the top of the outer roller main sprocket (702), an outer roller chain (703) is provided on the outer wall of the outer roller driven sprocket (704) and the outer roller main sprocket (702), an outer roller main support wheel (705) is provided outside the outer roller driven sprocket (704), an outer roller body (707) is provided outside the outer roller main support wheel (705), and an outer roller driven support wheel (706) is provided at one end of the outer roller body (707).

2. The dual-drum dynamic blanching machine according to claim 1, characterized in that: An upper cover (5) is provided between the steam blanching device (2). A discharge hood (6) is provided at one end of the upper cover (5). A feed hopper (3) is fixedly connected to the end of the upper cover (5) away from the discharge hood (6).

3. The dual-drum dynamic blanching machine according to claim 1, characterized in that: The inner roller main support wheel (205) and the inner roller driven support wheel (206) are arranged in two on each side of the inner roller body (207).

4. A double-drum dynamic blanching machine according to claim 2, characterized in that: The upper cover (5) is provided with a heat recovery device (4) at the top. The heat recovery device (4) includes an output pipe (401) and the output pipe (401) is provided on the outer wall of the upper cover (5). The upper cover (5) is provided with an output cavity (402) at the top. The outer wall of the output cavity (402) is fixedly connected to one end of the output pipe (401). The upper cover (5) is provided with a transmission pipe (403) inside. The upper cover (5) is provided with a dehumidifying fan (404) on the outer wall. The upper cover (5) is provided with an input cavity (405) at the top. The output end of the dehumidifying fan (404) is connected to the input cavity (405). The dehumidifying fan (404) is provided with a recovery pipe (406) on the outer wall.

5. A double-drum dynamic blanching machine according to claim 1, characterized in that: The outer drum main support wheel (705) and the outer drum driven support wheel (706) are arranged in two on each side of the outer drum body (707).

6. A double-drum dynamic blanching machine according to claim 2, characterized in that: The upper cover (5) is provided with a heating device (8) at its bottom. The heating device (8) includes a lower cover (801) which is located at the bottom of the upper cover (5). The lower cover (801) is provided with heat insulation cotton (804) at its top. The heat insulation cotton (804) is provided with a steam blanching section heating tube assembly (802) and a drum blanching section heating tube assembly (803) at its top. The steam blanching section heating tube assemblies (802) are spaced 10cm apart and 20cm apart. The drum blanching section heating tube assemblies (803) are spaced 10cm apart and 40cm apart.

7. A double-drum dynamic blanching machine according to claim 6, characterized in that: The inner roller drive motor (201) is located on the outer wall of the lower cover (801), the outer roller drive motor (701) is located at the bottom of the lower cover (801), and a water supply device (1) is provided on the outside of the lower cover (801).

8. A double-drum dynamic blanching machine according to claim 2, characterized in that: The upper cover (5) is equipped with a main control cabinet (9), which includes an emergency stop control switch (901), a main power control switch (902), a steam blanching section temperature controller (903), a drum blanching section temperature controller (904), a normal indicator light (905), a fault indicator light (906), an outer drum speed control knob (907), an inner drum speed control knob (908), a steam blanching section temperature sensor (909), and a drum blanching section temperature sensor (910).

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