Infrared drying and aroma improving machine for tea leaves

Abstract

The invention relates to the field of tea leaf drying, and particularly discloses a tea leaf infrared drying and aroma improving machine which comprises a mounting frame and a plurality of vibration conveying devices capable of vibrating relative to the mounting frame to convey tea leaves. The adjacent vibration conveying devices are distributed in an up-down staggered manner, so that the output end of the previous vibration conveying device is positioned above the input end of the next vibration conveying device. The device is characterized in that an infrared drying and aroma enhancing module is mounted above each vibration conveying device; the infrared drying and aroma increasing module comprises a combustor, a gas pipeline connected with the combustor, an igniter installed on the gas pipeline and a controller for controlling the igniter, the gas pipeline is provided with an air drainage assembly so that gas and air can be output to the combustor after being mixed, and the combustor is provided with a porous ceramic plate or a porous alloy plate. The method has the effects of improving the drying and aroma improving efficiency and reducing the energy consumption.

Description

Technical Field

[0001] The present application relates to the field of tea drying equipment, and in particular to an infrared tea drying and aroma-enhancing machine. Background Art

[0002] The principle of the tea aroma machine is mainly to promote the volatilization and diffusion of aromatic substances in tea by heating, thereby improving the aroma of tea.

[0003] Specifically, tea aroma machines usually use electric heating or gas heating to heat the air to a certain temperature, and then circulate the hot air into the tea leaves through a fan. During the heating process, the moisture in the tea leaves gradually evaporates, and the aromatic substances are also activated and volatilized. The role of the circulating air is to evenly distribute the hot air in the tea leaves, avoiding local overheating or overcooling, thereby ensuring a uniform and consistent tea aroma enhancement effect.

[0004] This method requires two devices, heating and circulating air. On the one hand, the equipment is expensive, and on the other hand, the hot air circulation system starts slowly. Summary of the invention

[0005] In order to improve the efficiency of drying and aroma enhancement, the present application provides an infrared drying and aroma enhancement machine for tea.

[0006] The infrared tea drying and aroma-enhancing machine provided in this application adopts the following technical solution:

[0007] A tea infrared drying and aroma-enhancing machine comprises a mounting frame, a plurality of vibrating conveying devices capable of vibrating relative to the mounting frame to convey tea leaves, adjacent vibrating conveying devices are staggered up and down so that the output end of the previous vibrating conveying device is located above the input end of the next vibrating conveying device, and is characterized in that an infrared drying and aroma-enhancing module is installed above each of the vibrating conveying devices; the infrared drying and aroma-enhancing module comprises a burner, a gas pipeline connected to the burner, an igniter installed on the gas pipeline, and a controller for controlling the igniter, the gas pipeline is provided with an air drainage component so that the gas and air are mixed and output to the burner, and the burner has a porous ceramic plate or a porous alloy plate.

[0008] Optionally, the air drainage assembly includes a drainage tube and a drainage fan installed on the drainage tube, and a one-way valve is installed on the drainage tube so that air can only enter the drainage tube from the outside.

[0009] Optionally, the burner includes a mounting frame and a burner head mounted in the mounting frame, the burner head has an opening below, and a porous ceramic plate or a porous alloy plate is mounted at the opening of the burner head.

[0010] Optionally, a camera is provided above the output end of each of the vibrating conveying devices, and the camera is electrically connected to a processor. The processor receives real-time tea picture information transmitted by the camera and compares it with a standard tea picture preset in the processor. A suction device is provided below the output end of each of the vibrating conveying devices. When the real-time tea picture information at a certain vibrating conveying device matches the standard tea picture, the suction device works to suck the tea leaves at the output end of the current vibrating conveying device.

[0011] Optionally, the suction device includes a suction fan and a suction box, the suction box is mounted on a mounting frame and is located above an output end of the vibrating conveying device, and the suction fan is connected to the suction box through a discharge pipe.

[0012] Optionally, the suction box is connected to a control device for controlling its height. The control device includes a lifting cylinder, a cylinder body of the lifting cylinder is fixed to a mounting frame, and a piston rod of the lifting cylinder is fixed to the suction box.

[0013] Optionally, a lower hopper is fixed on the mounting frame, and the lower hopper is located above the input end of the uppermost vibrating conveying device.

[0014] Optionally, a belt bucket elevator is fixed on the mounting frame, and the output port of the belt bucket elevator is located above the feed port of the lower hopper.

[0015] Optionally, a control method for an infrared tea drying and aroma-enhancing machine is characterized in that: along the tea conveying direction, the power of the burners above the first several vibration conveying devices is controlled to be greater than the power of the burners of the last several vibration conveying devices;

[0016] Working condition 1: When the camera does not detect that the real-time tea image information matches the standard tea image, the suction device works intermittently to turn the tea leaves over;

[0017] Working condition 2: When the real-time tea picture information at a certain vibration conveying device matches the standard tea picture, the suction device works to suck the tea leaves at the output end of the current vibration conveying device;

[0018] And the control device controls the height of the suction box in working condition one to be higher than the height in working condition two.

[0019] In summary, the present application includes at least one of the following beneficial technical effects:

[0020] 1. After the gas and air are mixed, they are ignited by the igniter and then ejected from the burner. The flame heats the porous ceramic plate or porous alloy plate to form infrared radiation. Due to the mixing of air, on the one hand, the combustion utilization rate of the gas is improved and energy is saved. On the other hand, the addition of air makes the flame always point downward and will not overflow from the side of the burner.

[0021] 2. Use cameras and processors to control the suction device to prevent the tea from being too dry;

[0022] 3. The suction device can also turn the material over, which can achieve better drying effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of the embodiment of the present application. Figure 1 ;

[0024] Figure 2 yes Figure 1 An enlarged schematic diagram of part A;

[0025] Figure 3 This is a schematic diagram of the overall structure of the embodiment of the present application. Figure 1 ;

[0026] Figure 4 yes Figure 3 A magnified schematic diagram of part B;

[0027] Figure 5 It is a schematic diagram of the infrared drying and aroma module;

[0028] Figure 6 It is a structural diagram of a porous ceramic plate.

[0029] Figure numerals: 1. mounting frame; 2. vibrating conveying device; 3. vibrating plate; 4. eccentric shaft; 5. rotating sleeve; 6. connecting rod; 7. rotating shaft; 8. rotating seat; 9. burner; 10. gas pipeline; 11. igniter; 12. mounting frame; 13. burner head; 14. porous ceramic plate; 15. lower hopper; 16. camera; 17. heat insulation board; 18. suction box; 19. lifting cylinder. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-5 This application is described in further detail.

[0031] Embodiment 1: A tea infrared drying and aroma-enhancing machine comprises a mounting frame 1, and a plurality of vibrating conveying devices 2 capable of vibrating relative to the mounting frame 1 to convey tea leaves, wherein adjacent vibrating conveying devices 2 are staggered in distribution up and down so that the output end of the previous vibrating conveying device 2 is located above the input end of the next vibrating conveying device 2.

[0032] As shown in the figure, a total of 6 vibration conveying devices 2 are set, wherein the upper surface of the vibration conveying device is inclined, generally at an angle of about 5 degrees, so that the tea leaves can slowly move on the upper surface of the vibration transmission device. Specifically, the vibration transmission device includes a vibration plate 3, and the vibration plate 3 is connected to the mounting frame 1 through a compression spring. The upper surface of the vibration plate 3 is inclined, and the input end is higher than the output end along the tea conveying direction. A vibration motor (existing technology) is fixed at the bottom of the vibration plate 3, and a vibration device of this application can also be set, including a motor, and the motor is fixed on the mounting frame 1. An eccentric shaft 4 is fixed on the output shaft of the motor, and the eccentric shaft 4 is parallel to the axis of the motor output shaft. A rotating sleeve 5 is rotatably connected to the eccentric shaft 4, and a connecting rod 6 is fixed on the rotating sleeve 5. A rotating shaft 7 is fixed at one end of the connecting rod 6. A rotating seat 8 is fixed at the bottom of the vibration plate 3, and the rotating shaft 7 is rotatably connected to the rotating seat 8. A guide column can also be set so that the vibration direction of the vibration plate 3 is clear and can only move along the guide column. Generally, the guide column is vertical, so that the vibration plate 3 vibrates up and down. The guide column can also be appropriately tilted.

[0033] An infrared drying and aroma module is installed above each of the vibrating conveying devices 2; the infrared drying and aroma module includes a burner 9, a gas pipeline 10 connected to the burner 9, an igniter 11 installed on the gas pipeline 10, and a controller for controlling the igniter 11, the controller is electrically connected to the igniter 11 (the controller here can also be a master controller, and can also be electrically connected to other devices that need to be controlled), and the gas pipeline 10 has an air drainage component so that the gas and air are mixed and output to the burner 9, and the burner 9 has a porous ceramic plate 14 or a porous alloy plate. The air drainage component includes a drainage pipe and a drainage fan installed on the drainage pipe, and a one-way valve is installed on the drainage pipe so that air can only enter the drainage pipe from the outside.

[0034] The burner 9 includes a mounting frame 12, a burner head 13 mounted in the mounting frame 12, an opening is provided below the burner head 13, a porous ceramic plate 14 or a porous alloy plate is mounted at the opening of the burner head 13, and the burner head 13 is connected to the gas pipeline 10. Since the mounting frame 12 is long, two burners 13 are provided, and two corresponding porous ceramic plates 14 are provided.

[0035] A lower hopper 15 is fixed on the mounting frame 1, and the lower hopper 15 is located above the input end of the uppermost vibrating conveying device 2. The feeding can be done by workers, and the feeding port can be set on the second floor. The tea infrared drying and aroma-enhancing machine is located on the first floor as a whole, which is convenient for feeding. Of course, a belt bucket elevator can also be used. The belt bucket elevator is fixed on the mounting frame 1, and the output port of the belt bucket elevator is located above the feeding port of the lower hopper 15. In this way, the tea infrared drying and aroma-enhancing machines can be placed on the first floor. The function of the belt bucket elevator is to lift the tea leaves at a lower place to the upper part of the lower hopper 15 at a higher place.

[0036] The implementation principle of the infrared tea drying and aromatizing machine in the embodiment of the present application is as follows: the gas and air are mixed and ignited by the igniter 11 and then ejected from the burner head 13. The flame heats the porous ceramic plate 14 or the porous alloy plate to form infrared radiation. Due to the mixing of air, on the one hand, the combustion utilization rate of the gas is improved and energy is saved. On the other hand, the addition of air ensures that the flame is always downward and will not overflow from the side of the burner 9.

[0037] Embodiment 2: A tea infrared drying and aroma-enhancing machine comprises a mounting frame 1, and a plurality of vibrating conveying devices 2 capable of vibrating relative to the mounting frame 1 to convey tea leaves, wherein adjacent vibrating conveying devices 2 are staggered in distribution up and down so that the output end of the previous vibrating conveying device 2 is located above the input end of the next vibrating conveying device 2.

[0038] As shown in the figure, a total of 6 vibration conveying devices 2 are set, wherein the upper surface of the vibration conveying device is inclined, generally with an inclination angle of about 5 degrees, so that the tea leaves can slowly move on the upper surface of the vibration transmission device. Specifically, the vibration transmission device includes a vibration plate 3, and the vibration plate 3 is connected to the mounting frame 1 through a compression spring. The upper surface of the vibration plate 3 is inclined, and along the tea conveying direction, the input end is higher than the output end. A vibration motor (existing technology) is fixed at the bottom of the vibration plate 3, and a vibration device of this application can also be set, including a motor, and the motor is fixed on the mounting frame 1. An eccentric shaft 4 is fixed on the output shaft of the motor, and the eccentric shaft 4 is parallel to the axis of the motor output shaft. The eccentric shaft 4 is rotatably connected to the rotating sleeve 5, and the connecting rod 6 is fixed on the rotating sleeve 5. The connecting rod 6 is fixed at one end of the rotating shaft 7. A rotating seat 8 is fixed at the bottom of the vibration plate 3, and the rotating shaft 7 is rotatably connected to the rotating seat 8. A guide column can also be set so that the vibration direction of the vibration plate 3 is clear and can only move along the guide column. Generally, the guide column is vertical, so that the vibration plate 3 vibrates up and down. The guide column can also be appropriately tilted.

[0039] An infrared drying and aroma module is installed above each of the vibrating conveying devices 2; the infrared drying and aroma module includes a burner 9, a gas pipeline 10 connected to the burner 9, an igniter 11 installed on the gas pipeline 10, and a controller for controlling the igniter 11, the controller is electrically connected to the igniter 11 (the controller here can also be a master controller, and can also be electrically connected to other devices that need to be controlled), and the gas pipeline 10 has an air drainage component so that the gas and air are mixed and output to the burner 9, and the burner 9 has a porous ceramic plate 14 or a porous alloy plate. The air drainage component includes a drainage pipe and a drainage fan installed on the drainage pipe, and a one-way valve is installed on the drainage pipe so that air can only enter the drainage pipe from the outside.

[0040] The burner 9 includes a mounting frame 12 and a burner head 13 mounted in the mounting frame 12 . The burner head 13 has an opening below. A porous ceramic plate 14 or a porous alloy plate is mounted at the opening of the burner head 13 . The burner head 13 is connected to the gas pipeline 10 .

[0041] A lower hopper 15 is fixed on the mounting frame 1, and the lower hopper 15 is located above the input end of the uppermost vibrating conveying device 2. The feeding can be done by workers, and the feeding port can be set on the second floor. The tea infrared drying and aroma-enhancing machine is located on the first floor as a whole, which is convenient for feeding. Of course, a belt bucket elevator can also be used. The belt bucket elevator is fixed on the mounting frame 1, and the output port of the belt bucket elevator is located above the feeding port of the lower hopper 15. In this way, the tea infrared drying and aroma-enhancing machines can be placed on the first floor. The function of the belt bucket elevator is to lift the tea leaves at a lower place to the upper part of the lower hopper 15 at a higher place.

[0042] A camera 16 is provided above the output end of each of the vibration conveying devices 2, and the camera 16 is connected to the mounting frame 12 through a heat insulation board 17. The camera 16 is electrically connected to a processor (industrial computer), and the processor receives the real-time tea picture information transmitted by the camera 16 and compares it with the tea standard picture preset in the processor. A suction device is provided below the output end of each of the vibration conveying devices 2, and when the real-time tea picture information at a certain vibration conveying device 2 matches the tea standard picture, the suction device works to suck the tea leaves at the output end of the current vibration conveying device 2.

[0043] The suction device includes a suction fan and a suction box 18. The suction box 18 is mounted on the mounting frame 1 and is located above the output end of the vibrating conveying device 2. The suction fan is connected to the suction box 18 through a discharge pipe. The suction box 18 is connected to a control device for controlling its height. The control device includes a lifting cylinder 19, the cylinder body of the lifting cylinder 19 is fixed to the mounting frame 1, and the piston rod of the lifting cylinder 19 is fixed to the suction box 18.

[0044] A control method for an infrared tea drying and aromatizing machine, along the tea conveying direction, controls the power of the burners 9 above the first few vibrating conveying devices 2 to be greater than the power of the burners 9 of the last few vibrating conveying devices; the present application has 6, and the air intake of the two top ones is greater than the air intake of the four burners 9 below.

[0045] Working condition 1: when the camera 16 does not detect that the real-time tea picture information matches the standard tea picture, the suction device works intermittently to turn the tea leaves over; for example, suction for 1 second and stop for 2 seconds. Since 6 turning devices are set, the turning demand can basically be met.

[0046] Working condition 2: when the real-time tea picture information at a certain vibration conveying device 2 matches the standard tea picture, the suction device works to suck the tea leaves at the output end of the current vibration conveying device 2;

[0047] And the control device controls the height of the suction box 18 in working condition one to be higher than that in working condition two.

[0048] In the working condition, the tea leaves are only sucked into the air and turned randomly when falling and turning. Therefore, the suction force requirement is small, so the height is high. When the tea leaves need to be sucked, the height is lowered as close to the upper surface of the vibration plate 3 as possible, which is convenient for sucking the tea leaves.

[0049] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present invention. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0050] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A tea infrared drying and aroma-enhancing machine, comprising a mounting frame, a plurality of vibrating conveying devices capable of vibrating relative to the mounting frame to convey tea leaves, adjacent vibrating conveying devices being staggered up and down so that the output end of the previous vibrating conveying device is located above the input end of the next vibrating conveying device, characterized in that: An infrared drying and aroma-enhancing module is installed above each of the vibrating conveying devices; the infrared drying and aroma-enhancing module includes a burner, a gas pipeline connected to the burner, an igniter installed on the gas pipeline, and a controller for controlling the igniter. The gas pipeline is provided with an air drainage component so that the gas and air are mixed and output to the burner. The burner has a porous ceramic plate or a porous alloy plate.

2. A tea infrared drying and aroma-enhancing machine according to claim 1, characterized in that: The air drainage component comprises a drainage pipe and a drainage fan installed on the drainage pipe. A one-way valve is installed on the drainage pipe so that air can only enter the drainage pipe from the outside.

3. The tea infrared drying and aroma-enhancing machine according to claim 1, characterized in that: The burner comprises a mounting frame and a burner head mounted in the mounting frame. An opening is provided below the burner head, and a porous ceramic plate or a porous alloy plate is mounted at the opening of the burner head.

4. The tea infrared drying and aroma-enhancing machine according to claim 1, characterized in that: A camera is provided above the output end of each of the vibration conveying devices, and the camera is electrically connected to a processor. The processor receives real-time tea picture information transmitted by the camera and compares it with a standard tea picture preset in the processor. A suction device is provided below the output end of each of the vibration conveying devices. When the real-time tea picture information at a certain vibration conveying device matches the standard tea picture, the suction device works to suck the tea leaves at the output end of the current vibration conveying device.

5. The tea infrared drying and aroma-enhancing machine according to claim 4, characterized in that: The suction device comprises a suction fan and a suction box. The suction box is mounted on a mounting frame and is located above the output end of the vibrating conveying device. The suction fan is connected to the suction box through a discharge pipe.

6. The tea infrared drying and aroma-enhancing machine according to claim 1, characterized in that: The suction box is connected with a control device for controlling its height.

7. The tea infrared drying and aroma-enhancing machine according to claim 6, characterized in that: The control device comprises a lifting cylinder, a cylinder body of the lifting cylinder is fixed to a mounting frame, and a piston rod of the lifting cylinder is fixed to a material suction box.

8. The tea infrared drying and aroma-enhancing machine according to claim 1, characterized in that: A lower hopper is fixed on the mounting frame, and the lower hopper is located above the input end of the uppermost vibrating conveying device.

9. The tea infrared drying and aroma-enhancing machine according to claim 1, characterized in that: A belt bucket elevator is fixed on the mounting frame, and an output port of the belt bucket elevator is located above a feed port of the lower hopper.

10. A control method for a tea infrared drying and aroma-enhancing machine, characterized in that: Along the tea conveying direction, the power of the burners above the first several vibration conveying devices is controlled to be greater than the power of the burners above the last several vibration conveying devices; Working condition 1: When the camera does not detect that the real-time tea image information matches the standard tea image, the suction device works intermittently to turn the tea leaves over; Working condition 2: When the real-time tea picture information at a certain vibration conveying device matches the standard tea picture, the suction device works to suck the tea leaves at the output end of the current vibration conveying device; And the control device controls the height of the suction box in working condition one to be higher than the height in working condition two.

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