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CN-122004314-A - Energy-saving and environment-friendly tea steam fixation device

CN122004314ACN 122004314 ACN122004314 ACN 122004314ACN-122004314-A

Abstract

The invention relates to the technical field of tea processing, in particular to an energy-saving and environment-friendly tea steam fixation device. The machine case comprises a machine case, wherein a moisture removing device is arranged at the top of the machine case, a flow dividing pipe is arranged in the machine case, a steam generator is arranged outside the machine case and is communicated with the flow dividing pipe through a conveying pipeline, the flow dividing pipe is in I-shaped arrangement, two sides of the flow dividing pipe are correspondingly communicated through a spray pipe respectively, through arranging the spray pipe at a gap between two sides of the conveying device and the inner wall of the machine case and arranging a spray head with a steering flow guiding structure at the top of the spray pipe, steam sprayed out of the spray pipes at two sides penetrates out of the conveying device upwards after accurately crossing at the middle part of the conveying device, and at the moment, the steam moving upwards after crossing contacts with the moisture removing device and is divided towards two sides, when the steam flows through areas above the conveying device and is close to the two sides, the tea leaves at the edge of the conveying device are subjected to secondary covering and water removing, and finally upwards discharged through the moisture removing device.

Inventors

  • FANG KE
  • CHEN ZHIGUO

Assignees

  • 四川华义生物科技有限公司

Dates

Publication Date
20260512
Application Date
20260320

Claims (10)

  1. 1. The utility model provides an energy-concerving and environment-protective tealeaves steam fixation device, includes quick-witted case (1), machine case (1) both ends all are equipped with two frames (11), four rotate between frame (11) and be connected with conveyer (12), just conveyer (12) are located inside machine case (1), its characterized in that: The top of the case (1) is provided with a dehumidifying device (13), a shunt tube (141) is arranged in the case (1), a steam generator (14) is arranged outside the case (1), and the steam generator (14) is communicated with the shunt tube (141) through a conveying pipeline (140); The shunt tubes (141) are distributed in an I shape, are integrally arranged at the hollow position inside the conveying device (12), two sides of the shunt tubes (141) are correspondingly communicated through one spray pipe (15), and the two spray pipes (15) are arranged in parallel at intervals and are respectively positioned at gaps between two sides of the conveying device (12) and the inner wall of the chassis (1); The top of the spray pipe (15) is provided with a plurality of spray holes (150) along the axial direction of the spray pipe, the top of the spray pipe (15) is fixedly connected with a spray head (16) for wrapping the plurality of spray holes (150), the spray head (16) is provided with a flow guiding structure for turning steam from vertical spraying to horizontal spraying towards the middle part of the conveying device (12), so that the steam sprayed by the spray pipes (15) at two sides is intersected at the middle part of the conveying device (12) and upwards penetrates out of the conveying device (12), and tea leaves on the conveying device (12) are deactivated; At the moment, the steam which moves upwards after crossing is shunted to two sides after reaching the moisture removing device (13), and when flowing through the area above the conveying device (12) and close to the two sides, tea leaves at the edge of the conveying device (12) are subjected to secondary covering and fixation, and finally, the tea leaves are upwards discharged through the moisture removing device (13).
  2. 2. The energy-saving and environment-friendly tea steam enzyme deactivation device according to claim 1, wherein the conveying device (12) comprises a conveying net belt (120), chains (121) are fixedly connected to two sides of the conveying net belt (120), gears (122) are meshed and connected to positions, close to two ends, inside the chains (121), and two opposite chains (121) are fixedly connected through a rotating rod (123).
  3. 3. The energy-saving and environment-friendly tea steam enzyme deactivation device according to claim 2, wherein the conveying mesh belt (120) is a stainless steel mesh belt, and the mesh size of the conveying mesh belt is gradually decreased from the middle part to the two sides.
  4. 4. The energy-saving and environment-friendly tea steam enzyme deactivation device according to claim 1, wherein the moisture removal device (13) comprises a top cover (130), the top cover (130) is movably and hermetically connected to the top of the case (1), moisture removal openings are formed in the top cover (130) close to two sides, and moisture removal pipes (131) are fixedly connected to the moisture removal openings.
  5. 5. The energy-saving and environment-friendly tea steam enzyme deactivation device according to claim 4, wherein the moisture removal device (13) further comprises a baffle plate (132), the baffle plate (132) is positioned in the top cover (130), a plurality of support plates (133) are fixedly connected to the top of the baffle plate (132), and the support plates (133) are fixedly connected to the top of the inner wall of the top cover (130); Gaps are reserved between the two sides of the baffle plate (132) and the inner wall of the case (1), and the two ends of the baffle plate (132) are fixedly connected with the two ends of the inner wall of the case (1).
  6. 6. The energy-saving and environment-friendly tea steam enzyme deactivating device of claim 5, wherein the plurality of support plates (133) are in an inclined connection state at the top of the baffle plate (132), the plurality of support plates (133) are fixedly connected in an inclined manner from four top angles of the baffle plate (132) to the center point direction of the baffle plate (132), and gaps are reserved between the end parts of the four support plates (133) close to the center point of the baffle plate (132).
  7. 7. The energy-saving and environment-friendly tea steam enzyme deactivating device as claimed in claim 2, wherein the hollow position inside the conveying mesh belt (120) is provided with a shunt pipe (141) to enable steam sprayed out of the spray head (16) to move at the hollow position of the conveying mesh belt (120), and the steam is upwards used for deactivating enzymes of tea carried on the conveying mesh belt (120).
  8. 8. The energy-saving and environment-friendly tea steam enzyme deactivating device according to claim 2, wherein a gap for installing the spray pipe (15) is reserved between the conveying mesh belt (120) and the inner wall of the case (1), and an inward inclined guide surface is formed on the inner wall of the case (1) at the gap from bottom to top and is used for guiding steam upwards to the dehumidifying device (13).
  9. 9. The energy-saving and environment-friendly tea steam enzyme deactivation device according to claim 1, wherein the spray heads (16) are of an L-shaped structure as a whole, and L-shaped outlets of the two spray heads (16) are arranged oppositely and are used for turning vertical upward steam flow sprayed out of the spray pipe (15) into steam flow horizontally oriented to the middle part of the conveying device (12).
  10. 10. The energy-saving and environment-friendly tea steam enzyme deactivating device of claim 9, wherein the outlet end of the spray head (16) is of a flat structure and is used for converging steam to form a flat steam curtain so as to increase the coverage width and penetration force of the steam.

Description

Energy-saving and environment-friendly tea steam fixation device Technical Field The invention relates to the technical field of tea processing, in particular to an energy-saving and environment-friendly tea steam fixation device. Background The tea enzyme deactivation method mainly comprises steam enzyme deactivation, roller enzyme deactivation, hot air enzyme deactivation and the like, wherein the steam enzyme deactivation is mild in temperature, and the tea leaves are emerald green in color and fresh in fragrance after enzyme deactivation, so that the method is widely applied to large-scale production of the tea leaves such as green tea, steamed tea and the like. In the processing of tea (such as black tea) requiring subsequent fermentation, if the enzyme activity remained in the enzyme deactivation process is too high or unevenly distributed, the subsequent fermentation process is out of control, so that the fermentation is excessive or uneven, and if the enzyme activity is completely destroyed due to the excessive enzyme deactivation, the subsequent fermentation cannot be started. The existing device is difficult to provide enzyme activity retaining even, and is suitable for enzyme deactivation leaves of subsequent directional fermentation. The prior art is generally applied to a mesh belt type steam enzyme deactivation machine, which mainly comprises a machine box, a conveyor belt, a steam spray pipe and a moisture discharging port, fresh leaves are firstly uniformly laid on the conveyor belt and conveyed into a sealed machine box by the conveyor belt, high-temperature steam generated by an external steam generator is sprayed into the machine box through the steam spray pipe, so that tea leaves are contacted with the high-temperature steam in the conveying process to realize enzyme deactivation, redundant steam and water vapor generated in the enzyme deactivation process are discharged from the moisture discharging port at the top of the machine box, and the tea leaves after enzyme deactivation are sent out of the machine box along with the conveyor belt. The steam spray pipes of the existing equipment are mostly of simple circular pipe open pore structures, a small number of spray pipes are generally arranged on the left side and the right side or the top of a machine case, the steam diffusion range is limited, so that the steam concentration near the spray holes is high and the temperature is sufficient, and the steam at the far positions of the spray holes (such as the edges of a mesh belt and corners of the machine case) is difficult to reach to form steam dead angles; meanwhile, as the moisture discharging port at the top of the case continuously sucks steam outwards, a low-pressure area is formed below the moisture discharging port, high-temperature steam just sprayed out is easily sucked away directly, so that the retention time of the steam in the area right below the moisture discharging port is insufficient, the problems of incomplete fixation and enzyme activity residue are easy to occur when tea passes through the area, and the effect of inhibiting fermentation and oxidization of partial tea is not up to standard. In view of the above, there is a need for an energy-saving and environment-friendly tea steam enzyme deactivation device to solve the above problems. Disclosure of Invention The invention aims to provide an energy-saving and environment-friendly tea steam fixation device, which aims to solve the problem through a unique steam diversion and penetration structure. The invention provides an energy-saving environment-friendly tea steam enzyme deactivation device, which is characterized in that spray heads with steering diversion structures are arranged on two sides of a conveying device, so that steam penetrates through tea upwards after crossing at the middle part of the conveying device, then a baffle structure in a top dehumidification device is utilized to force steam to flow to two sides so as to carry out secondary covering enzyme deactivation on edge tea, and meanwhile, a conveying mesh belt with meshes decreasing from the middle part to two sides and an inclined diversion inner wall are matched, so that the steam distribution is more uniform, the residence time is longer and the enzyme deactivation is more sufficient, the accurate and uniform inhibition on the activity of polyphenol oxidase of the tea is realized, the enzyme activity reserved in the enzyme deactivation leaves is at a stable and uniform low level, and a raw material with controllable enzyme activity basis and uniform quality is provided for the subsequent oxidation fermentation process, so that the problems in the background technology are solved, namely: The existing steam fixation machine has uneven steam diffusion, steam dead angles, insufficient steam penetrating power when the tea thickness is large, incomplete fixation caused by direct pumping of steam below a moisture discharge port, quality fluctuation