Tea baking oven with high thermal efficiency

Abstract

The utility model belongs to the field of tea manufacturing equipment, and discloses a tea baking furnace with high thermal efficiency. A platform is arranged in the furnace body, an electric heating device is arranged on the platform, and a placing tray for placing charcoal is arranged above the electric heating device; a heating pipe is arranged above the platform of the furnace body; a ceramic ball is placed on the platform; and the electric heating device and the heating tube are connected with an external power supply. Compared with a baking furnace in the prior art, the baking furnace has the advantages of being simple in structure, high in heat efficiency and capable of saving energy.

Description

Technical Field

[0001] The utility model belongs to the field of tea manufacturing equipment and relates to a tea baking furnace, in particular to a tea baking furnace with high thermal efficiency. Background Art

[0002] Fenghuang Dancong tea is a kind of tea produced in Fenghuang Town, Chaozhou City, Guangdong Province, and belongs to the Oolong tea system. The production of Dancong tea requires nine steps: picking, sun-drying, air-drying, waving, killing, rolling, drying, color sorting, and baking. The baking step is the last process in the production of finished tea and the last step before the tea is put on the market. The purpose of the operation is to evaporate the excess water in the tea to promote the ripening of the substances contained in the leaves and enhance the aroma, thereby improving and fixing the quality and facilitating storage.

[0003] The existing Fenghuang Dancong tea baking equipment can be roughly divided into carbon furnace baking equipment and electric furnace baking equipment according to the different heat sources. Among them, high-end tea uses carbon furnaces, and the use of carbon furnace baking is the closest to the ancient tea making process. The tea will have the fragrance of charcoal during the baking process. However, the temperature of the carbon furnace is difficult to control and depends more on the experience of the operator. If you don't pay attention, it is easy to cause the tea to be burnt. The electric furnace has the characteristics of easy control of the temperature, but the tea does not have the charcoal fragrance, which makes the taste and fragrance of the tea poor. For example, the patent CN210695786U applied by the applicant first is a new tea baking device with an electric furnace. The device has the characteristics of easy control of the temperature of the electric furnace, but the thermal efficiency of the device is not high, and the structure is relatively complex, the production cost is high, and it does not have the effect of carbon furnace baking. If the electric furnace is combined with charcoal for baking, the advantages of the carbon furnace and the electric furnace can be combined. Utility Model Content

[0004] After many improvements and verifications by the applicant, the present application overcomes the defects of the prior art and provides a tea baking furnace with high thermal efficiency. Compared with the baking furnaces in the prior art, the baking furnace has the characteristics of simple structure, high thermal efficiency and energy saving.

[0005] The technical solution of the utility model is as follows.

[0006] A tea baking furnace with high thermal efficiency is provided. A platform is arranged inside the furnace body, an electric heating device is arranged on the platform, a placing plate for placing charcoal is arranged above the electric heating device; a heating tube is arranged above the platform of the furnace body; ceramic balls are placed on the platform; the electric heating device and the heating tube are connected to an external power supply.

[0007] Further preferably, the utility model further comprises a power supply controller, and the power supply controller is connected to the electric heating device and the heating tube.

[0008] Further preferably, the placement plate is fixed above the electric heating device via a supporting structure.

[0009] Further preferably, the support structure is a metal cylindrical structure with small holes, wherein the small holes are for allowing air to enter the metal cylindrical structure to provide oxygen for the electric heating device.

[0010] Further preferably, a heating wire is arranged inside the electric heating device.

[0011] Further preferably, the placing tray is made of metal, and charcoal is placed inside the placing tray when in use.

[0012] Further preferably, a plurality of gaskets are arranged at the upper edge of the furnace body, and the gaskets are used to support the baking box body, so that a gap is reserved between the baking box body and the furnace body, and external air can enter.

[0013] In the utility model, the diameter of the ceramic ball is 3-10 cm, preferably 4-7 cm. In the utility model, the ceramic ball absorbs and slowly releases the temperature in the baking furnace, regulates the internal temperature, and avoids the problem of rapid temperature rise or drop.

[0014] In this embodiment, an electric heating device is used to control the burning and baking of charcoal in the upper placement tray, and a heating tube is used to supplement the temperature of the burning and baking of charcoal. At the same time, the temperature in the baking furnace is effectively adjusted by ceramic balls inside the furnace body, so as to achieve the purpose of effective temperature control, so that the furnace body has the advantages of both carbon furnace baking and electric furnace baking. At the same time, this setting can effectively improve the thermal efficiency. After verification by the applicant, the tea baking furnace in the utility model and the existing electric furnace baking machine have a thermal efficiency of more than 30% under the same electricity usage.

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] (1) Compared with the baking ovens in the prior art, the baking oven of the utility model has a simple structure and meets the requirements of industrial production.

[0017] (2) An electric heating device is used to control the combustion and baking of charcoal in the upper placement tray, and a heating tube is used to supplement the temperature of the charcoal combustion and baking. At the same time, ceramic balls are used inside the furnace body to effectively adjust the temperature inside the baking furnace, thereby achieving the purpose of effective temperature control, so that the furnace body has the advantages of both carbon furnace baking and electric furnace baking.

[0018] (3) The utility model has the characteristics of high thermal efficiency and energy saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the tea baking oven in the utility model;

[0020] Figure 2 This is a structural schematic diagram of the tea baking oven without ceramic balls in the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the electric heating furnace in the tea baking furnace of the utility model;

[0022] Figure 4 It is a schematic diagram of the bottom structure of the placement plate;

[0023] Figure 5 It is a structural schematic diagram of a tea baking furnace with a baking box.

[0024] The components in the figure are as follows: furnace body 1, placement plate 2, heating tube 3, supporting structure 4, power controller 5, gasket 6, ceramic ball 7, electric heating device 8, heating wire 9, platform 10, baking box 11, top cover 12, temperature measuring device 13. DETAILED DESCRIPTION

[0025] The following description combines specific illustrations to explain the technical solution in order to fully understand the utility model application. However, the present application can be implemented in many other ways different from those described herein, and similar generalization embodiments made by ordinary technicians in the field without creative work are all within the scope of protection of the utility model.

[0026] like Figure 1~Figure 3 As shown, a tea baking furnace with high thermal efficiency is provided with a platform 10 inside the furnace body 1. Figure 3 As shown, in this embodiment, an electric heating device 8 is provided on the platform 10, and an electric heating wire 9 is provided inside the electric heating device 8; Figure 2 As shown, in this embodiment, a placement plate 2 for placing charcoal is arranged above the electric heating device, and the placement plate 2 is a plate made of metal. In this embodiment, charcoal is placed inside the placement plate 2 when in use. The placement plate 2 is fixed above the electric heating device 8 through a support structure 4; the support structure 4 is a metal cylindrical structure with small holes (in this embodiment, the support structure is a cylindrical structure surrounded by iron sheets with small holes), wherein the function of the small holes is to allow part of the heat generated by the electric heating device 8 to be dissipated to the outer area of ​​the support structure 4 (refer to Figure 4 , Figure 4 The shaded part is the support structure, and the small holes are not drawn in the figure. As long as the purpose of dissipating part of the heat generated by the electric heating device to the outer area of ​​the support structure can be achieved). Figure 1As shown, a heating tube 3 is arranged above the platform 10 of the furnace body 1; a ceramic ball 7 is placed on the platform 10, and the diameter of the ceramic ball 7 in this embodiment is 5 cm; the electric heating device and the heating tube 3 are respectively connected to an external power supply. In this embodiment, when the tea baking furnace is working, the temperature of the combination of the heating tube 3 and the electric heating device 8 with the heating wire 9 can reach 80~200℃.

[0027] In this embodiment, a plurality of gaskets 6 are arranged at the upper edge of the furnace body 1, and the gaskets 6 are used to support the baking box 11, so that a gap is reserved between the baking box 11 and the furnace body 1, and external air can enter.

[0028] The present embodiment also includes a power supply controller 5, which is connected to the electric heating device and the heating tube 3, and is used to independently control the operation and shutdown of the electric heating device and the heating tube 3.

[0029] In this embodiment, when a tea baking furnace with high thermal efficiency is used, the baking box 11 needs to be placed on the furnace body 1 (refer to Figure 5 ), the baking box 11 is just placed on the gasket 6, and the gasket 6 is used to support the baking box 11, so that a gap is reserved between the baking box 11 and the furnace body 1, and external air can enter. The top cover of the baking box 11 is provided with a top cover 12, and the baking box 11 is provided with a temperature measuring device 13. The internal structure of the baking box 11 in this embodiment is consistent with the description in the patent CN210695786U A new tea baking device with an electric heating furnace previously applied by the applicant.

[0030] When the tea baking oven in this embodiment is used, the placing tray 2 is first fixed on the electric heating device 8 with electric heating wire 9 through the supporting structure 4, and charcoal is placed on the placing tray 2 and laid flat. The ceramic balls 7 are placed on the platform 10. Then the baking box 11 is placed above the tea baking oven, the tea leaves to be baked are placed inside the baking box 11, the top cover 12 is covered, the power is turned on, and the electric heating device 8 and the heating tube 3 are controlled by the power controller 5. When the temperature in the baking box 11 reaches the set temperature of 80-200°C, the baking is maintained at this temperature for 15-20 minutes, and the electric heating device 8 with electric heating wire 9 is turned off, and the heat preservation is performed again. When the temperature is lower than the set temperature, the electric heating device 8 with electric heating wire 9 is turned on again, and the cycle is repeated until the baking is completed.

[0031] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A tea roasting furnace with high thermal efficiency, characterized in that: A platform is arranged inside the furnace body, an electric heating device is arranged on the platform, a placing plate for placing charcoal is arranged above the electric heating device; a heating tube is arranged above the platform of the furnace body; ceramic balls are placed on the platform; the electric heating device and the heating tube are connected to an external power supply.

2. A tea roasting furnace with high thermal efficiency according to claim 1, characterized in that: It also includes a power controller, which is connected to the electric heating device and the heating tube.

3. A tea roasting furnace with high thermal efficiency according to claim 1, characterized in that: The placing plate is fixed above the electric heating device through a supporting structure.

4. A tea roasting furnace with high thermal efficiency according to claim 3, characterized in that: The support structure is a metal cylindrical structure with small holes, wherein the small holes are for allowing air to enter the metal cylindrical structure to provide oxygen for the electric heating device.

5. A tea roasting furnace with high thermal efficiency according to claim 1, characterized in that: The electric heating device is provided with a heating wire inside.

6. A tea roasting furnace with high thermal efficiency according to claim 1, characterized in that: The material of the placing plate is metal, and charcoal is placed inside the placing plate when in use.

7. A tea roasting furnace with high thermal efficiency according to claim 1, characterized in that: A plurality of gaskets are arranged at the upper edge of the furnace body.

8. A tea roasting furnace with high thermal efficiency according to claim 1, characterized in that: The diameter of the ceramic ball is 3-10 cm.

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