Tea oil refining, decolorizing and deodorizing system

Abstract

The invention belongs to the technical field of tea oil refining, and particularly relates to a tea oil refining, decolorizing and deodorizing system which comprises a deodorizing tower, a gas outlet pipe and a liquid inlet pipe are arranged at the top of a tower body of the deodorizing tower, a gas inlet pipe and a liquid outlet pipe are arranged at the bottom of the tower body, and the gas inlet pipe is communicated with a steam supply system; a deodorization layer is uniformly arranged in the tower body and comprises a filler bearing plate fixedly connected with the inner wall of the tower body and filler stacked on the upper side of the filler bearing plate; inflow high-temperature steam is guided into the communicated flow dividing cavities from the ventilation pipes, so that the high-temperature steam transversely impacts the filler located in the mass transfer area from the flow dividing holes, and channels for the high-temperature steam to enter the mass transfer area are increased; the high-temperature steam impacts the filler to vibrate the filler, so that the filler gap is enlarged, the upward flowing resistance is reduced, the contact area of the tea oil and the steam entering the filler gap is increased, and the deodorization efficiency of the tea oil is further improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of tea oil refining, and specifically relates to a tea oil refining, decolorizing and deodorizing system. Background Art

[0002] In the refining process of oils and fats, deodorization is a very important process and operation unit, and the main equipment, the deodorization tower, is the core of the entire oil and fat deodorization process; at present, the deodorization tower most commonly used in domestic oil and fat refining processes is a packed tower.

[0003] Since the late 1990s of the 20th century, when the packed deodorization tower was first introduced into the vegetable oil industry in China, the packed deodorization tower has been rapidly popularized due to its high steam utilization rate, low refining loss and other advantages. The packed deodorization tower has a short residence time in the high-temperature section, and at the same time, a uniformly distributed and thin oil film on the surface of the packing, so that the decolorized oil entering the packed deodorization tower can complete the deodorization process in the shortest possible time, which can better inhibit the formation of trans fatty acids in the oil during the deodorization process, thereby effectively reducing the increase in the content of trans fatty acids in the oil after the high-temperature deodorization process.

[0004] However, because there is a relatively thick packing layer inside the packed deodorization tower, when refining and deodorizing tea oil, since the fatty acids contained in the tea oil evaporate instantly due to high temperature when contacting the packing to form steam, the volume increases, resulting in a flooding phenomenon and accumulating in the packing gaps, especially in the areas at the top and bottom of the packing. This easily causes the flow of tea oil and high-temperature steam to be blocked, affecting the normal progress of the tea oil refining process. Summary of the Invention

[0005] In order to make up for the deficiencies of the prior art and solve the above technical problems; the present invention provides a tea oil refining, decolorizing and deodorizing system, including a deodorization tower. An air outlet pipe and a liquid inlet pipe are provided at the top of the tower body of the deodorization tower, and an air inlet pipe and a liquid outlet pipe are provided at the bottom of the tower body. The air inlet pipe is communicated with a steam supply system; A deodorization layer is uniformly arranged inside the tower body. The deodorization layer includes a packing bearing plate fixedly connected to the inner wall of the tower body, and packing piled on the upper side of the packing bearing plate. A liquid distributor is arranged above the deodorization layer, and the liquid distributor is communicated with the liquid inlet pipe; A ventilation pipe is centrally penetrated through the packing bearing plate. Partition plates are uniformly arranged on the upper surface of the packing bearing plate around the ventilation pipe. The partition plates evenly divide the upper side of the packing bearing plate into a plurality of mass transfer zones; the inside of the partition plates is hollow and forms a shunt cavity, and the shunt cavity is communicated with the inside of the ventilation pipe; Shunt holes are arranged on the side wall of the shunt cavity, and the shunt holes are communicated with the mass transfer zones.

[0006] Preferably, the part of the partition corresponding to the top of the mass transfer zone is a transmission part. The top of the transmission part is closed, and the two side parts are filter screen structures, so that the top area of the mass transfer zone communicates with the inside of the diversion chamber.

[0007] Preferably, a diversion layer is uniformly arranged inside the diversion chamber along the vertical direction. The diversion layer includes symmetrically arranged diversion plates. One end of the diversion plate is connected to the inner wall of the diversion chamber, and the other end inclines downward, and a diversion gap is formed between the two diversion plates on both sides.

[0008] Preferably, an air charging pipe is arranged at the part of the air vent pipe corresponding to the diversion layer. The air charging pipe extends horizontally into the inside of the diversion chamber, and the air charging pipe is located below the corresponding diversion gap; The diversion holes are distributed in the gap area between the diversion plates, and the openings of the diversion holes on the inner wall of the diversion chamber are close to the upper surface of the diversion plates.

[0009] Preferably, a diversion block is arranged at the part of the diversion layer above the diversion gap. The cross section of the diversion block is oval, and the upper and lower surfaces of the diversion block are both arc-shaped.

[0010] Preferably, turning plates are uniformly arranged on the outer surface of the partition. The end of the turning plate is rotationally connected to the outer surface of the partition, and the diversion holes point to the gap area between the partition and the turning plate.

[0011] Preferably, an arc plate is arranged at the bottom of the turning plate. The center of the arc line corresponding to the cross section of the arc plate is located at the rotational connection position between the turning plate and the partition. Closed plates are arranged at both ends of the arc plate. The arc plate and the closed plates slide through the corresponding chute arranged on the outer surface of the partition. Drainage holes are arranged on the turning plate.

[0012] Preferably, both the diversion holes and the drainage holes are conical holes. The end of the diversion hole close to the turning plate is the small end, and the end of the drainage hole close to the outer surface of the partition is the large end.

[0013] The beneficial effects of the present invention are as follows: In the tea oil refining, decolorizing and deodorizing system of the present invention, by arranging a partition on the packing bearing plate where the packing is located, the gas-liquid contact gap area at the top of the packing is divided into multiple mass transfer zones, so that the tea oil accumulated in the top area of the packing when the flooding phenomenon occurs cannot form a whole. At the same time, the steam supply system can be controlled to start intermittently, so that the high-temperature steam is sent into the tower body intermittently, so that the tea oil is continuously blocked by the upward flowing steam during the downward flow process and is changed into intermittent blockage, making the downward flow of the tea oil smoother; Then, the inflowing high-temperature steam is introduced from the ventilation pipe into the internal communicating diversion cavity, and it laterally impacts the packing located inside the mass transfer zone through the diversion holes, increasing the channels for the high-temperature steam to enter the mass transfer zone. The high-temperature steam impacts the packing and makes it vibrate, increasing the gaps between the packing, reducing the resistance to upward flow, and at the same time increasing the contact area between the camellia oil and the steam entering the gaps between the packing, further improving the deodorization efficiency of the camellia oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below with reference to the accompanying drawings.

[0015] Figure 1 is a perspective view of the present invention; Figure 2 is a cross-sectional view of the tower body in the present invention; Figure 3 is a schematic view when the packing bearing plate and the partition plate cooperate in the present invention; Figure 4 is a cross-sectional view of the partition plate in the present invention; Figure 5 is Figure 4 a partial enlarged view of part A in Figure 6 is a perspective view of the combination of the turning plate, the arc plate, and the closing plate in the present invention.

[0016] In the figure: deodorization tower 1, air outlet pipe 11, liquid inlet pipe 12, air inlet pipe 13, liquid outlet pipe 14, deodorization layer 2, packing bearing plate 21, mass transfer zone 211, ventilation pipe 22, partition plate 23, transmission part 231, diversion cavity 24, diversion hole 241, chute 242, diversion layer 25, diversion plate 251, diversion gap 252, gas filling pipe 253, diversion block 254, turning plate 26, arc plate 261, closing plate 262, drainage hole 263. SPECIFIC EMBODIMENTS

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0018] Embodiment 1: As shown in the accompanying drawings of the specification Figures 1 - 6As shown in the figure, the present application proposes a tea oil refining, decolorizing and deodorizing system, including a deodorizing tower 1. An air outlet pipe 11 and a liquid inlet pipe 12 are arranged at the top of the tower body of the deodorizing tower 1, and an air inlet pipe 13 and a liquid outlet pipe 14 are arranged at the bottom of the tower body. The air inlet pipe 13 is communicated with a steam supply system. The steam supply system can be a boiler device in the prior art, which can provide high-temperature steam meeting the requirements for the tea oil refining process as needed. A deodorizing layer 2 is uniformly arranged inside the tower body. The deodorizing layer 2 includes a packing bearing plate 21 fixedly connected to the inner wall of the tower body, and packings piled on the upper side of the packing bearing plate 21. A liquid distributor is arranged above the deodorizing layer 2, and the liquid distributor is communicated with the liquid inlet pipe 12. A plurality of deodorizing layers 2 can be arranged inside the tower body along the vertical direction. Except for the uppermost deodorizing layer 2, a liquid redistributor can be arranged above the deodorizing layer 2 close to the lower side, so that the tea oil passing through the uppermost deodorizing layer 2 is uniformly redistributed under the action of the liquid redistributor. A ventilation pipe 22 is arranged through the center of the packing bearing plate 21. The top of the ventilation pipe 22 is closed, and the bottom opening is in a horn shape and communicated with the area below the deodorizing layer 2. Partition plates 23 are uniformly arranged on the upper surface of the packing bearing plate 21 around the ventilation pipe 22. The partition plates 23 evenly divide the upper side of the packing bearing plate 21 into a plurality of mass transfer zones 211. Through holes with a diameter smaller than the packing diameter are uniformly arranged at the positions corresponding to the mass transfer zones 211 on the packing bearing plate 21. The inside of the partition plate 23 is hollow to form a flow distribution cavity 24. The flow distribution cavity 24 is communicated with the inside of the ventilation pipe 22, and flow distribution holes 241 are uniformly arranged on the side wall of the flow distribution cavity 24. The flow distribution holes 241 are communicated with the mass transfer zones 211.

[0019] Specific working process: During the tea oil refining process, in order to separate the odor substances in the tea oil, the filtered and processed tea oil can be preheated and then sent into the liquid inlet pipe 12. The liquid inlet pipe 12 evenly distributes the incoming tea oil to the upper side of the deodorizing layer 2 through the liquid distributor at the end, so that it contacts the packings on the deodorizing layer 2. At the same time, start the high-temperature steam supply system, and send the high-temperature steam into the bottom of the tower body through the air inlet pipe 13, so that it flows upward along the vertical direction. In this way, inside the tower body, the tea oil flowing from top to bottom and the high-temperature steam flowing from bottom to top come into contact with each other. According to the characteristic that the partial pressure of the odor substances in the water vapor is lower than their partial pressure in the oil phase, under the action of the high-temperature steam, the odor substances in the tea oil are promoted to transfer into the high-temperature steam and flow upward with the high-temperature steam, and flow out from the air outlet pipe 11 at the top, realizing the deodorization treatment of the incoming tea oil. To improve the deodorization effect of camellia oil, a deodorization layer 2 is provided. The filler filled in the deodorization layer 2 contacts the downward-flowing camellia oil. The camellia oil contacts the surface of the filler and flows downward along the filler gaps, slowing down the downward flow rate of the camellia oil. And because the filler has a large specific surface area, the camellia oil covering the filler surface can fully contact the high-temperature steam permeating upward from the filler gaps, increasing the mass transfer area between the high-temperature steam and the camellia oil, making it easier for odor substances to transfer from the camellia oil to the high-temperature steam, thereby improving the deodorization efficiency of the camellia oil; In view of the situation that during the refining process of camellia oil, due to the fatty acids contained in it evaporating instantly due to high temperature to form steam when contacting the filler, the volume increases, resulting in a flooding phenomenon and accumulating in the filler gaps, especially in the top and bottom regions of the filler. This easily causes the flow of camellia oil and high-temperature steam to be blocked, affecting the normal progress of the camellia oil refining process; in this application, a partition 23 is provided on the filler bearing plate 21 where the filler is located. The top of the partition 23 is higher than the top of the accumulated filler, thereby dividing the gas-liquid contact gap region in the top region of the filler into multiple mass transfer regions 211, so that the camellia oil accumulated in the top region of the filler when the flooding phenomenon occurs cannot form a whole, and the upward-flowing high-temperature steam is also dispersed into each mass transfer region 211, so that the upward resistance received by the camellia oil is dispersed; at the same time, the steam supply system can be controlled to start intermittently, so that the high-temperature steam is fed into the tower body intermittently, so that the continuous resistance received by the camellia oil when flowing downward due to the upward-flowing steam is changed to intermittent resistance, making the downward flow of the camellia oil smoother; And a ventilation pipe 22 is provided in the middle part of the filler bearing plate 21. In this way, when the high-temperature steam flowing upward contacts the filler bearing plate 21 and the accumulated filler and is blocked, part of the high-temperature steam penetrates upward along the filler gaps, and part of the high-temperature steam flows centrally into the ventilation pipe 22. Subsequently, after being blocked at the top of the ventilation pipe 22, it flows into the connected diversion cavity 24, and then laterally impacts the filler inside the mass transfer region 211 through the diversion holes 241 uniformly arranged on the side wall of the diversion cavity 24, increasing the channels for the high-temperature steam to enter the mass transfer region 211; And the high-temperature steam flowing laterally in the filler gaps can impact the filler to make it vibrate, increasing the filler gaps and promoting the smoother flow of the camellia oil and steam therein; due to the extension of the flow path, the duration of the laterally flowing steam in the filler gaps increases, and it contacts the camellia oil more fully and for a longer time, improving the separation efficiency of the odor substances in the camellia oil. And it also makes the downward-flowing camellia oil, after being impacted in multiple directions, increase the lateral flow path, reduce the upward flow resistance, and at the same time increase the contact area with the steam entering the filler gaps, further improving the deodorization efficiency of the camellia oil.

[0020] Example Two: On the basis of Embodiment 1, the part of the partition plate 23 corresponding to the top of the mass transfer zone 211 is the transmission part 231. The top of the transmission part 231 is closed, and the two sides are filter screen structures. And in the vertical direction, half of the transmission part 231 is located above the packed filler, and half is located between the packed fillers, so that the transmission part 231 is located in the combined area between the packed filler and the packed camellia oil. A flow guiding layer 25 is uniformly arranged inside the shunt cavity 24 along the vertical direction. The flow guiding layer 25 includes symmetrically arranged flow guiding plates 251. One end of the flow guiding plate 251 is connected to the inner wall of the shunt cavity 24 in the gap area between the shunt holes 241, and the other end is inclined downward, and a flow guiding gap 252 is formed between the two flow guiding plates 251 on both sides. A gas charging pipe 253 is arranged at the part of the ventilation pipe 22 corresponding to the flow guiding layer 25. The gas charging pipe 253 extends horizontally into the shunt cavity 24, and the gas charging pipe 253 is located below the corresponding flow guiding gap 252. Specific working process: On the basis of the specific working process in Embodiment 1, by setting the two sides of the transmission part 231 at the top of the partition plate 23 as filter screen structures, and the voids of the filter screen are smaller than the diameter of the filler, while preventing the filler from entering, when the flooding situation occurs, the camellia oil accumulated in the top area of the filler can penetrate through the side wall of the transmission part 231 and enter the shunt cavity 24. Subsequently, after contacting with the inflowing steam inside the shunt cavity 24, a gas-liquid mixture is formed and rushes into different areas of the filler gap from the shunt holes 241 uniformly distributed on the side wall of the shunt cavity 24. In this way, the flow path of the camellia oil is increased, and the situation that the camellia oil is too concentrated in the local area at the top of the filler and the downward flow is not smooth is reduced, so that the camellia oil is more evenly distributed to different area positions of the filler gap. And when the camellia oil enters the shunt cavity 24 and is mixed and contacted with the high-temperature steam that also flows into the shunt cavity 24 to form a gas-liquid mixture, and has greater kinetic energy compared with the impact of pure steam during the process of flowing out from the shunt holes 241, which promotes the vibration of the filler and increases the gap. During this process, the mixing of the camellia oil and the steam further promotes the mass transfer between the gas and the liquid, promotes the transfer of the odor substances in the camellia oil to the steam, and improves the deodorization effect of the camellia oil. Furthermore, in order to improve the contact mass transfer effect between the camellia oil and the high-temperature steam inside the diversion chamber 24, a diversion layer 25 is evenly arranged inside the diversion chamber 24. When the camellia oil enters the inside of the diversion chamber 24 from the transmission part 231 and flows downward, the camellia oil flows downward along the inclined surfaces of the two diversion plates 251 on both sides and passes through the middle diversion gap 252 to continue flowing downward. In this way, the camellia oil contacts the diversion plates 251 in each diversion layer 25 sequentially along the vertical direction. And because the high-temperature steam is introduced intermittently, when the high-temperature steam stops being introduced, the downward flow resistance of the camellia oil is small and it flows downward smoothly. When the high-temperature steam is introduced intensively, the high-temperature steam flows out from the through holes arranged at the positions on the side wall of the gas charging pipe 253 facing the diversion gap 252, so that the area of the diversion gap 252 is impacted upward, preventing the camellia oil from continuing to flow downward. When part of the high-temperature steam flows into the transmission part 231 and flows upward, after being intercepted by the top of the transmission part 231, it can only flow outwards from the filter screens on both sides of the transmission part 231, impacting the accumulated camellia oil that may be piled up in the top area of the packing, causing it to disperse due to the impact vibration and reducing the accumulation situation. And the reverse impact also causes the impurities adhered to the filter screens on both sides of the transmission part 231 to fall off due to the impact, realizing the cleaning of the filter screens on both sides of the transmission part 231 and ensuring its permeability. And when the high-temperature steam flows out from the diversion hole 241, because the diversion hole 241 is close to the inclined upper surface of the diversion plate 251, the steam will flow along the upper surface of the inclined surface of the diversion plate 251 and contact the camellia oil that is also flowing, causing the camellia oil to be impacted reversely and then flow out from the diversion hole 241 and enter the packing gap. Through the setting of the diversion plate 251, the flow path of the camellia oil inside the diversion chamber 24 is increased, and it is distributed on the surfaces of each diversion plate 251 inside the diversion chamber 24. In this way, after the high-temperature steam flows in, the contact area between it and the steam can be increased, so that the camellia oil and the steam are mixed more fully, improving the mass transfer efficiency, and further improving the deodorization effect of the camellia oil.

[0021] Embodiment 3: On the basis of Embodiment 2, a diversion block 254 is arranged at the part of the diversion layer 25 above the diversion gap 252. The cross-section of the diversion block 254 is elliptical, and the upper and lower surfaces of the diversion block 254 are both arc-shaped. Specific working process: On the basis of the specific working process in the second embodiment, when the camellia oil enters the inside of the diversion chamber 24 and flows downward to contact the diversion layer 25, the camellia oil first contacts the diversion block 254 in the diversion layer 25. The camellia oil flows along the arc surface on the upper surface of the diversion block 254 in the diversion layer 25 to both sides and falls onto the diversion plates 251 on both sides, and then flows downward along the inclined upper surface of the diversion plates 251; when the steam flows in, the high-temperature steam passes through the diversion gap 252 and contacts the diversion block 254 upward and is blocked, and is guided to both sides along the arc-shaped curved surface on the lower side of the diversion block 254, and then flows along the inclined upper surface of the diversion plates 251 to the diversion holes 241 on both sides; the presence of the diversion block 254 causes the horizontal lateral flow paths of the incoming camellia oil and steam to increase, and they are more evenly distributed inside the diversion chamber 24. The mass transfer area between the high-temperature steam and the camellia oil is further increased, and the deodorization efficiency is further improved.

[0022] Embodiment Four: On the basis of the third embodiment, turning plates 26 are evenly arranged on the outer surface of the partition plate 23. The end of the turning plate 26 is rotatably connected to the outer surface of the partition plate 23 through a rotating shaft. The end of the rotating shaft can extend to the inner wall of the tower body, and a torsion spring can be arranged at the rotating connection part of the turning plate 26 and the partition plate 23. The outer opening of the diversion hole 241 points to the gap area between the partition plate 23 and the turning plate 26; Specific working process: On the basis of the specific working process in the third embodiment, when the supply of high-temperature steam stops, the turning plate 26 is in a vertical state and is in a fitting state with the outer surface of the partition plate 23; when the high-temperature steam is supplied, the steam and the camellia oil are mixed and enter the gap area between the turning plate 26 and the partition plate 23 from the diversion hole 241, so that the pressure in the gap part increases, prompting the end of the turning plate 26 to rotate upward along the rotating shaft, so that the part of the packing in the mass transfer area 211 close to the partition plate 23 is affected by the upward-rotating turning plate 26 and moves upward. While the packing on both sides of the mass transfer area 211 moves upward, the packing in the middle area is supplemented to the vacant area after the upward movement. In this way, the fluidity of the packing in the mass transfer area 211 in the vertical and horizontal directions is promoted, effectively increasing the gap between the packings, effectively reducing the situation that the camellia oil and camellia oil impurities are too concentrated in a local area and causing poor flow, and ensuring the smooth progress of the camellia oil deodorization operation.

[0023] Embodiment Five: On the basis of Embodiment 4, an arc plate 261 is provided at the bottom of the turning plate 26. The center of the circular arc line corresponding to the cross-section of the arc plate 261 is located at the rotational connection position between the turning plate 26 and the partition plate 23. Closed plates 262 are provided at both ends of the arc plate 261. The arc plate 261 and the closed plates 262 slidably penetrate through a chute 242 provided at a corresponding position on the outer surface of the partition plate 23. The chute 242 has an approximately U-shaped structure, which facilitates the sliding of the arc plate 261 and the closed plates 262 on both sides through it. Drainage holes 263 are provided on the turning plate 26; Both the diversion hole 241 and the drainage hole 263 are tapered holes. The end of the diversion hole 241 close to the turning plate 26 is the small end, and the end of the drainage hole 263 close to the outer surface of the partition plate 23 is the large end.

[0024] Specific working process: On the basis of the specific working process in Embodiment 4, the closed area formed between the turning plate 26, the arc plate 261 at the bottom, and the closed plates 262 on both sides expands into a closed fan-shaped area after the turning plate 26 rotates; in this way, during the rotation and reset process of the turning plate 26, it can prevent external fillers from entering the gap area between the turning plate 26 and the partition plate 23, thereby avoiding the situation where the rotation and reset of the turning plate 26 are blocked. The arc plate 261 on the arc surface is subjected to less frictional resistance when contacting the filler during the rotation and reset process, making the rotation and reset of the turning plate 26 smoother; Therefore, when steam and tea oil accelerate and flow into the gap between the turning plate 26 and the partition plate 23, the pressure in the gap area increases, which promotes the rotation of the turning plate 26. The gap area increases to form a fan-shaped area. Subsequently, part of the gas-liquid mixture flows out from the drainage holes 263 on the turning plate 26. When the steam supply decreases, the impact on the turning plate 26 decreases, and when it is reset under the action of the corresponding torsion spring, while rotating and resetting, the fan-shaped area between the turning plate 26 and the partition plate 23 decreases, thereby squeezing the gas-liquid mixture remaining in the fan-shaped area; Due to the fact that both the diversion hole 241 and the drainage hole 263 are provided as tapered holes, when the closed fan-shaped area is squeezed, the gas-liquid mixture inside the fan-shaped area is subjected to greater resistance when flowing into the small end of the nearby diversion hole 241, and less resistance when flowing into the large end opening of the nearby drainage hole 263. Therefore, it promotes the gas-liquid mixture inside the fan-shaped area to accelerate and spray out from the drainage holes 263 on the turning plate 26 when being pressed, increasing the action range of the gas-liquid mixture; The drainage holes 263 are located on the turning plate 26 near the arc plate 261, while the opening of the diversion hole 241 points to the area near the middle of the turning plate 26. The diversion hole 241 and the drainage hole 263 do not coincide in the vertical direction, which can further prevent the gas-liquid mixture flowing into the fan-shaped area from flowing back; and the drainage holes 263 can also be distributed on the arc plate 261 to further expand the diffusion range of the outflowing gas-liquid mixture, increasing the contact mass transfer area between the tea oil and the steam, and improving the deodorization efficiency of the tea oil; Moreover, when the input amount of tea oil is excessive or the high-temperature steam cannot be introduced at intervals, the rotating shaft on the turning plate 26 can be connected to the driving motor in the inner wall of the tower body, and the rotation of the turning plate 26 can be controlled by an external controller. In this way, the rotation of the turning plate 26 can be controlled regularly, increasing the fan-shaped area. The negative pressure causes the gas-liquid mixture inside the shunt chamber 24 to be filled into the fan-shaped area. When the turning plate rotates back to its original position, the squeezing action makes the filled gas-liquid mixture spray out from the drainage holes 263, improving the efficiency of the diffusion of tea oil and steam inside the shunt chamber 24 into the packing gaps. Controlling the driving turning plate 26 can also strengthen the pushing effect on the packing, promoting the mutual flow and mixing among the packing in each area, thereby improving the permeability of the packing gaps.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only used to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and all these changes and improvements fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A tea oil refining, decolorizing and deodorizing system, including a deodorizing tower (1). An air outlet pipe (11) and a liquid inlet pipe (12) are arranged at the top of the tower body of the deodorizing tower (1). An air inlet pipe (13) and a liquid outlet pipe (14) are arranged at the bottom of the tower body. The air inlet pipe (13) communicates with a steam supply system. It is characterized in that: A deodorizing layer (2) is evenly arranged inside the tower body. The deodorizing layer (2) includes a packing bearing plate (21) fixedly connected to the inner wall of the tower body, and packings stacked on the upper side of the packing bearing plate (21). A liquid distributor is arranged above the deodorizing layer (2), and the liquid distributor communicates with the liquid inlet pipe (12). A ventilation pipe (22) penetrates through the center of the packing bearing plate (21). Partition plates (23) are evenly arranged on the upper surface of the packing bearing plate (21) around the ventilation pipe (22). The partition plates (23) evenly divide the upper side of the packing bearing plate (21) into a plurality of mass transfer zones (211). The inside of the partition plates (23) is hollow and forms a flow distribution cavity (24), and the flow distribution cavity (24) communicates with the inside of the ventilation pipe (22). Flow distribution holes (241) are arranged on the side wall of the flow distribution cavity (24), and the flow distribution holes (241) communicate with the mass transfer zones (211).

2. The tea oil refining, decolorizing and deodorizing system according to claim 1, wherein: The part of the partition plate (23) corresponding to the top of the mass transfer zone (211) is a transmission part (231). The top of the transmission part (231) is closed, and the two side parts are of a filter structure, so that the top area of the mass transfer zone (211) communicates with the inside of the flow distribution cavity (24).

3. The tea oil refining, decolorizing and deodorizing system according to claim 2, characterized in that: Flow guiding layers (25) are evenly arranged inside the flow distribution cavity (24) along the vertical direction. The flow guiding layers (25) include symmetrically arranged flow guiding plates (251). One end of the flow guiding plate (251) is connected to the inner wall of the flow distribution cavity (24), and the other end inclines downward. A flow guiding gap (252) is formed between the two flow guiding plates (251) on both sides.

4. The tea oil refining, decolorizing and deodorizing system according to claim 3, characterized in that: An air charging pipe (253) is arranged at the part of the ventilation pipe (22) corresponding to the flow guiding layer (25). The air charging pipe (253) extends horizontally into the inside of the flow distribution cavity (24), and the air charging pipe (253) is located below the corresponding flow guiding gap (252). The flow distribution holes (241) are distributed in the gap area between the flow guiding plates (251), and the opening of the flow distribution holes (241) on the inner wall of the flow distribution cavity (24) is close to the upper surface of the flow guiding plate (251).

5. A tea oil refining, decolorizing and deodorizing system according to claim 4, characterized in that: A flow dividing block (254) is arranged at the part of the flow guiding layer (25) above the flow guiding gap (252). The cross section of the flow dividing block (254) is oval, and the upper and lower surfaces of the flow dividing block (254) are both arc-shaped.

6. The tea oil refining, decolorizing and deodorizing system according to claim 5, characterized in that: Turning plates (26) are evenly arranged on the outer surface of the partition plate (23). The end part of the turning plate (26) is rotatably connected to the outer surface of the partition plate (23), and the flow distribution holes (241) point to the gap area between the partition plate (23) and the turning plate (26).

7. A tea oil refining, decolorizing and deodorizing system according to claim 6, characterized in that: An arc plate (261) is provided at the bottom of the flipping plate (26). The center of the arc line corresponding to the cross-section of the arc plate (261) is located at the rotational connection position between the flipping plate (26) and the partition plate (23). Closed plates (262) are provided at both end parts of the arc plate (261). The arc plate (261) and the closed plates (262) slidably penetrate through a chute (242) provided at a corresponding part of the outer surface of the partition plate (23). Drainage holes (263) are provided on the flipping plate (26).

8. A tea oil refining, decolorizing and deodorizing system according to claim 7, characterized in that: Both the diversion holes (241) and the drainage holes (263) are tapered holes. The end part of the diversion hole (241) close to the flipping plate (26) is the small end, and the end part of the drainage hole (263) close to one side of the outer surface of the partition plate (23) is the large end.

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