A brick tea drying room for developing mold

Abstract

A drying chamber for brick tea with fermentation and drying functions is disclosed, relating to tea processing equipment, particularly equipment for fermenting or drying brick tea. It includes a drying chamber body, a drying chamber, inner walls, a bottom surface of the drying chamber, a drying chamber roof, a humidifier / atomizer, a controller, and temperature, humidity, and oxygen sensors. Its unique feature is the presence of a geothermal pipe below the bottom surface of the drying chamber, capable of evenly heating the bottom surface and radiating heat uniformly into the chamber, raising the temperature to 50°C. An oxygen supply pipe is located at the bottom of the drying chamber. The inner wall is made of porcelain, and the drying chamber roof is an openable and closable conical shape that allows the hot and humid air to rise evenly and uniformly. This invention eliminates temperature dead zones within the drying chamber, ensuring uniform temperature distribution and precise control. It also eliminates the problem of condensation on ceramic tiles, ensuring long-term cleanliness and overcoming the risk of bacterial contamination in brick tea. The entire drying chamber features vertically balanced ventilation and dehumidification, with precise humidity control. This invention can be used not only for the fermentation of Fu brick tea but also for the drying of black brick tea.

Description

Technical Field

[0001] This utility model relates to a tea processing equipment, particularly a tea brick tea fermentation or drying equipment. Background Technology

[0002] In the production of compressed brick tea, the tea leaves must undergo fermentation or drying in a drying room. This is especially true for Fu brick tea, which has strict requirements regarding the environment, temperature, humidity, and ventilation of the fermentation drying room. Any problem in these areas can severely impact the fermentation process. Traditionally, the fermentation of Fu brick tea is carried out in wooden drying rooms using charcoal fires. The operator's experience is crucial for controlling the temperature and humidity, often resulting in the entire batch of tea being ruined. While the industry has made continuous efforts to develop more automated Fu brick tea drying rooms, these systems still haven't fundamentally solved the existing problems. These problems mainly manifest in two ways: First, they cannot completely solve the problem of uniform temperature distribution within the drying room. The temperature is provided by heat dissipation pipes or hot air ducts installed inside the drying room. Because the heat from these pipes rises vertically, there are temperature dead zones at the bottom and sides of the drying room, causing uneven temperature distribution and affecting the quality of the fermentation. Second, they cannot solve the problems of condensation or cleanliness on the drying room walls. The walls of the drying chambers are typically made of wood panels or ceramic tiles. Ceramic tiles are prone to condensation, causing uneven humidity and localized temperature drops within the chamber. If this condensation seeps onto the tea bricks, it can lead to mold growth. While wood panels can absorb moisture and prevent condensation, the absorbed water provides a breeding ground for bacteria that are difficult to remove, creating a risk of contamination. Thirdly, the problem of dripping water from the ceiling remains unresolved. The flat ceiling design allows condensation to drip vertically onto the tea bricks, causing excessive humidity in certain areas, affecting the quality of the tea's fermentation process and potentially leading to mold growth. Fourthly, the issue of uniform humidity control throughout the drying chamber remains unresolved. Because the exhaust vents are located on the sides or in multiple small-diameter outlets on the flat ceiling, it's impossible to achieve even humidity control, making it difficult to maintain consistent humidity levels within the chamber. These are long-standing problems that the industry has been trying to solve but has yet to find a solution. Summary of the Invention

[0003] The purpose of this utility model is to disclose a brick tea fermentation and drying room, which solves a technical problem that the industry has long wanted to solve but has not been able to solve.

[0004] The technical solution of this utility model is: a drying room for brick tea with blooming, including a drying room body, a drying chamber, an inner wall, a bottom surface of the drying chamber, a drying room roof, a humidifier atomizer, a controller, and temperature, humidity, and oxygen sensors. Its special feature is that: a geothermal pipe is provided below the bottom surface of the drying chamber, which can evenly heat the bottom surface of the drying chamber and radiate heat energy evenly into the drying chamber, raising the temperature inside the drying chamber to 50°C; an oxygen supply pipe is provided at the bottom of the drying chamber; the inner wall is made of porcelain; and the drying room roof is made into an openable and closable conical top that allows the hot and humid air in the drying chamber to rise evenly and as a whole.

[0005] In a preferred embodiment, auxiliary heating pipes are provided laterally at the bottom of the inner walls on the left and right sides of the drying chamber.

[0006] In a further preferred embodiment, the bottom of the left and right inner walls of the drying chamber can be provided with a niche with a height of 20CM-50CM and a length equivalent to the width of the left and right inner walls, and the auxiliary heating pipe is placed inside the niche.

[0007] In a preferred embodiment, wall heat pipes capable of heating the inner walls of the drying chamber to 50°C are provided.

[0008] In a preferred embodiment, the top of the inner wall around the drying chamber is provided with a water-blocking ring and water-guiding holes.

[0009] In a preferred embodiment, the drying chamber roof is fitted onto the top of the drying chamber body outside the water-blocking ring.

[0010] In a preferred embodiment, the roof of the drying room is a conical roof with two layers of wood material, and an insulating interlayer is provided between the two layers of wood material.

[0011] In the preferred embodiment, the conical top of the drying chamber is provided with a ventilation window, and an openable top cover is provided on the ventilation window. The openable top cover consists of two pages, with the outer edge of each page hinged to the edge of the conical body. An opening device is connected to the bottom of the openable top cover.

[0012] In a further preferred embodiment, the opening device is provided with two opening rods. The upper ends of the two opening rods are respectively hinged to the bottom surface of the two opening top covers, and the lower ends are hinged to the lifting seat. The lifting seat is fixed on the lifting screw, and the lifting screw is sleeved on the guide seat. A humidifier atomizer is fixed at the lower end of the lifting screw. The guide seat is fixed on the fixed beam, and the fixed beam is fixed inside the conical top. A drive disc is provided on the lifting screw through a threaded connection. The drive disc is located on the upper end face of the guide seat through a radial bearing. The drive disc is driven by a drive motor through a gear. The drive motor is controlled by a controller.

[0013] In a further preferred embodiment, the humidifying atomizer sprays mist from top to bottom in a fan-shaped pattern.

[0014] The working principle of this utility model is as follows: Before drying, the drying room is disinfected. After disinfection, the drying rack for placing the brick blanks is moved into the drying room, the drying room door is closed, and the opening device is controlled by the controller to close the openable top cover. Then, according to the fermentation process requirements, the temperature of the drying chamber is raised by the geothermal pipes to enter the fermentation process. During the fermentation process, the temperature and humidity sensors and oxygen sensors transmit the sensed temperature, humidity and oxygen content back to the controller. The controller controls the geothermal pipes to increase or decrease the temperature of the drying chamber in a timely manner, controls the gas dispersion pipes to supplement the required oxygen, and controls the humidifier atomizer to humidify. After the fermentation process is completed, the Fu brick tea drying process begins. The controller controls the geothermal pipes and auxiliary heating pipes, or the geothermal pipes and wall heating pipes, to raise the temperature of the drying chamber according to the drying step temperature requirements. At the same time, the controller controls the opening device to gradually open the openable top cover according to the step humidity requirements. When the fermented brick blanks are dried to the required moisture content and become Fu brick tea products, the working process is completed.

[0015] This invention features geothermal pipes installed beneath the bottom of the drying chamber, which evenly heat the chamber's surface and radiate heat throughout, raising the temperature to 50°C. This eliminates temperature dead zones and completely solves the problem of uniform temperature distribution within the drying chamber. The inner wall is made of porcelain, eliminating the long-standing industry problem of wooden drying chamber walls being difficult to clean and posing a risk of bacterial contamination of brick tea. Auxiliary heating pipes are horizontally installed at the bottom of the inner walls on both sides of the drying chamber, reducing the problem of condensation on the ceramic tiles. In particular, wall heating pipes are installed around the inner walls of the drying chamber, heating the surrounding walls to 50°C, completely eliminating condensation and ensuring a more uniform temperature within the chamber. The drying chamber roof is designed as an openable, closable cone, allowing hot and humid air to rise evenly throughout the chamber. This not only solves the problem of condensation dripping vertically onto the tea bricks but also completely resolves the issue of uneven humidity control within the drying chamber, resulting in more consistent humidity levels. This invention can be used not only for the fermentation of Fu brick tea, but also for the drying of black brick tea. Attached Figure Description

[0016] Figure 1 This is a front view of an embodiment of the present invention;

[0017] Figure 2 This is a top view of an embodiment of the present invention;

[0018] Figure 3 This is one of the main sectional views of an embodiment of the present invention;

[0019] Figure 4 This is a partial enlarged view of an embodiment of the present invention;

[0020] Figure 5 This is the second front cross-sectional view of an embodiment of the present invention.

[0021] Explanation of markings in the diagram: 1-Drying chamber body, 2-Drying chamber, 3-Inner wall of drying chamber, 4-Drying chamber roof, 5-Openable roof cover, 6-Opening device, 7-Roof insulation layer, 8-Wall heat pipe, 9-Drying chamber bottom, 10-Geothermal pipe, 11-Gas connecting pipe, 12-Auxiliary heat pipe, 13-Drying chamber door, 14-Controller, 15-Water baffle ring, 16-Water guide hole, 17-Drying rack, 18-Brick blank, 19-Gas dispersion pipe, 20-Humidifier atomizer, 61-Opening rod, 62-Lifting screw, 63-Lifting plate, 64-Drive motor, 65-Guide seat, 66-Fixed beam, 67-Lifting seat. Detailed Implementation

[0022] To better understand this utility model, the following description is in conjunction with the appendix. Figure 1-5 The present invention will be further described with reference to specific embodiments.

[0023] like Figure 1-3 This embodiment describes a brick tea drying and fermentation chamber, comprising a chamber body 1, a drying chamber 2, an inner wall 3, a bottom surface 9, a roof 4, a humidifier 20, a controller 14, and temperature, humidity, and oxygen sensors. A geothermal pipe 10 is installed below the bottom surface 9 of the drying chamber, capable of uniformly heating the bottom surface 9 and radiating heat evenly into the drying chamber 2, raising the temperature inside the drying chamber 2 to 50°C. An oxygen supply pipe 18 is installed at the lower part of the drying chamber. The inner wall 3 of the drying chamber is made of porcelain. The roof 4 is a closable conical top that allows the hot and humid air in the drying chamber 2 to rise evenly and uniformly.

[0024] In this embodiment, a geothermal pipe 10 is installed below the bottom surface 9 of the drying chamber, which can evenly heat the bottom surface 9 and radiate heat energy evenly into the drying chamber 2, raising the temperature inside the drying chamber 2 to 50°C. This eliminates some temperature dead zones in the drying chamber and completely solves the problem of uniform temperature distribution within the drying chamber. Because the inner wall 3 of the drying chamber is made of porcelain, it completely solves the long-standing problem in the industry where the wooden walls of the drying chamber are difficult to clean, posing a hidden danger of bacterial contamination to the brick tea. Because the roof 4 of the drying chamber is made into an openable and closable conical roof that allows the hot and humid air in the drying chamber 2 to rise evenly, it solves the problem of condensation dripping vertically onto the tea bricks and the problem of uniform dehumidification of the entire drying chamber, making the humidity inside the drying chamber more uniform.

[0025] In a preferred embodiment, auxiliary heating pipes 12 are horizontally arranged at the bottom of the inner walls 3 on the left and right sides of the drying chamber. Niches with a height of 20-50 cm and a length equal to the width of the inner walls 3 can be horizontally arranged at the bottom of the inner walls 3 on the left and right sides of the drying chamber, and the auxiliary heating pipes 12 are placed within these niches. This reduces the problem of condensation on the tiles, especially since wall heating pipes 8 are provided in the inner walls 3 around the drying chamber to heat the surrounding inner walls 3 to 50°C, completely eliminating the problem of condensation on the tiles and making the temperature inside the drying chamber 2 more uniform.

[0026] like Figure 1 , 2 4. This embodiment: A brick tea drying and fermentation chamber includes a chamber body 1, a drying chamber 2, inner walls 3, a bottom surface 9, a roof 4, a humidifier / atomizer 20, a controller 14, and temperature, humidity, and oxygen sensors. A geothermal pipe 10 is installed below the bottom surface 9 of the drying chamber to evenly heat the bottom surface 9 and radiate heat uniformly into the drying chamber 2, raising the temperature inside the drying chamber 2 to 50°C. An oxygen supply pipe 18 is installed at the bottom of the drying chamber, with ventilation micropores connected to a gas communication pipe 11. The use of micropore ventilation avoids localized temperature drops. The inner walls 3 of the drying chamber are made of porcelain. The roof 4 is a closable conical top that allows the hot and humid air in the drying chamber 2 to rise evenly and uniformly. Wall heating pipes 8 are installed inside the inner walls 3 around the drying chamber to heat the surrounding inner walls 3 to 50°C. A heat insulation layer is provided inside the outer wall of the wall heat pipe 8. The heat energy of the geothermal pipe 10 and the wall heat pipe 8 is controlled by the controller 14. A water baffle ring 15 and a water guide hole 16 are provided on the top of the inner wall 3 of the drying chamber. The drying chamber roof 4 is fitted onto the top of the wall of the drying chamber body 1 outside the water baffle ring 15. A ventilation window 20 is provided on the conical top of the drying chamber roof 4. An openable top cover 5 is provided on the ventilation window 20. The openable top cover 5 consists of two pages. The outer edge of each page is hinged to the edge of the conical body. An opening device 6 is connected to the bottom of the openable top cover 5. The conical top of the drying chamber roof 4 is provided with two layers of wood material, with a heat insulation layer 7 in between the two layers of wood material. In addition to the technical effects of the aforementioned embodiments, this embodiment can not only reduce condensation on the conical top but also prevent condensation droplets from dripping onto the brick blank 18 in the drying chamber 3. At the same time, it increases the heat insulation effect of the conical top and facilitates ventilation in the drying chamber 3.

[0027] In a further embodiment, such as Figure 5 The opening device 6 has two opening rods 61. The upper ends of the two opening rods 61 are hinged to the bottom surfaces of the two opening top covers, and the lower ends are hinged to the lifting seat 67. The lifting seat 67 is fixed to the lifting screw 62, which is sleeved on the guide seat 65. The humidifying atomizer 20 is fixed to the lower end of the lifting screw 62 and sprays downwards in a fan-shaped pattern. The guide seat 65 is fixed to the fixing beam 66, which is fixed inside the conical top. A drive disc 63 is threaded onto the lifting screw 62. The drive disc 63 is mounted on the upper end face of the guide seat 65 via a radial bearing. The drive disc 63 is driven by a drive motor 64 via gears. The drive motor 64 is controlled by a controller 14. The opening device 6 can also employ an opening structure and method. This feature facilitates the reliable opening of the top cover 5.

[0028] The above embodiments are not intended to limit the scope of this embodiment in any form or substance. It should be noted that any improvements and additions made by those skilled in the art without departing from the method of this embodiment should also be considered within the scope of protection of this embodiment. Any modifications, alterations, and equivalent changes made by those skilled in the art using the disclosed technical content without departing from the spirit and scope of this embodiment are equivalent embodiments of this embodiment; furthermore, any modifications, alterations, and evolutions made to the above embodiments based on the essential technology of this embodiment are still within the scope of protection of this embodiment.

Claims

1. A drying oven for brick tea to develop mold, comprising a drying oven body, a drying chamber, inner walls, a drying chamber floor, a drying oven roof, a humidifier / atomizer, a controller, and temperature, humidity, and oxygen sensors, characterized in that: The bottom of the drying chamber is equipped with a geothermal pipe that can evenly heat the bottom of the drying chamber and radiate heat energy evenly into the drying chamber, raising the temperature inside the drying chamber to 50°C. An oxygen supply pipe is installed at the bottom of the drying chamber. The inner wall is made of porcelain. The roof of the drying chamber is made into an openable and closable conical top that allows the hot and humid air in the drying chamber to rise evenly and as a whole.

2. The brick tea drying room for developing mold as described in claim 1, characterized in that: Auxiliary heating pipes are horizontally arranged at the bottom of the inner walls on the left and right sides of the drying chamber.

3. The brick tea drying room for developing mold as described in claim 2, characterized in that: At the bottom of the inner walls on the left and right sides of the drying chamber, there are niches with a height of 20-50 cm and a length equivalent to the width of the inner walls on the left and right sides. The auxiliary heating pipes are placed inside the niches.

4. The brick tea drying room for developing mold as described in claim 1, characterized in that: The inner walls of the drying chamber are equipped with wall heat pipes that can heat the inner walls to 50°C.

5. The brick tea drying room for developing mold as described in claim 1, characterized in that: The drying room roof is a cone-shaped roof with two layers of wood material inside and out, and an insulating interlayer is provided between the two layers of wood material.

6. The brick tea drying room for developing mold as described in claim 1, characterized in that: The top of the inner walls of the drying chamber is provided with a water-blocking ring and water guide holes, and the top of the drying chamber is fitted onto the top of the drying chamber body outside the water-blocking ring.

7. The brick tea drying room for developing mold as described in claim 1, characterized in that: The drying chamber has a conical top with ventilation windows, and an openable top cover is provided on the ventilation windows. The openable top cover consists of two pages, with the outer edge of each page hinged to the edge of the conical body. An opening device is connected to the bottom of the openable top cover.

8. The brick tea drying room for developing mold as described in claim 1, characterized in that: An oxygen supply pipe is provided at the bottom of the drying chamber. The oxygen supply pipe has ventilation micropores and is connected to a gas communication pipe.

9. The brick tea drying room for developing mold as described in claim 7, characterized in that: The opening device has two opening rods. The upper ends of the two opening rods are respectively hinged to the bottom surface of the two opening top covers, and the lower ends are hinged to the lifting seat. The lifting seat is fixed on the lifting screw, and the lifting screw is sleeved on the guide seat. A humidifier atomizer is fixed at the lower end of the lifting screw. The guide seat is fixed on the fixed beam, and the fixed beam is fixed inside the conical top. A drive disc is provided on the lifting screw through a threaded connection. The drive disc is located on the upper end face of the guide seat through a radial bearing. The drive disc is driven by a drive motor through a gear. The drive motor is controlled by a controller.

10. A brick tea drying room for developing mold according to claim 9, characterized in that: The humidifier atomizes the spray from top to bottom in a fan-shaped pattern.

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