A device for treating perfume wastewater

Abstract

The application discloses a kind of spice essence production wastewater treatment devices, belong to essence production wastewater treatment technical field, including distillation column, the top of the distillation column is provided with waste inlet pipe, the bottom of the distillation column is provided with waste outlet pipe, the lateral wall of the distillation column is provided with discharge pipe, still including concentration adjusting device;Wherein, the concentration adjusting device includes concentration detector, the concentration detector is arranged at the top of distillation column, the top of the distillation column rotates and is penetrated with stirring rod, the top of the distillation column is provided with buffer inlet pipe, the inner wall of the distillation column is fixedly installed with baffle, the circumferential surface of the stirring rod is fixedly installed with baffle, the surface of the baffle is provided with through-hole one;Through concentration detector, wastewater concentration is monitored in real time, avoid the problem such as coking, wall sticking, blockage caused by too high concentration, simultaneously avoid instantaneous large amount of feed to cause distillation condition violent fluctuation, make whole distillation process continuous and stable.

Description

Technical Field

[0001] This invention belongs to the field of fragrance production wastewater treatment technology, specifically relating to a fragrance and flavor production wastewater treatment device. Background Technology

[0002] The fragrance and flavor production wastewater treatment device is mainly used to treat high-concentration, toxic, and difficult-to-degrade organic wastewater generated during the production of fragrances and flavors. Through physicochemical pretreatment, biochemical degradation, and deep purification, it removes COD, odor, color, and toxic and harmful substances from the water, enabling the wastewater to meet discharge standards or be reused, while reducing environmental pollution and safety risks.

[0003] Patent publication number CN220597091U relates to a wastewater treatment system for fragrance and flavor production, belonging to the field of fragrance and flavor production wastewater treatment technology. The system includes a wastewater treatment tank, with a wastewater inlet pipe fixedly installed at the top. One end of the wastewater inlet pipe extends into the interior of the wastewater treatment tank, and the other end extends to the bottom exterior of the tank, where a water pump is fixedly connected. A secondary distillation assembly is fixedly installed inside the wastewater treatment tank, and a condensation recovery assembly is installed on one side of the top interior of the tank. One end of the condensation recovery assembly is connected to a fragrance recovery detection box. This system can effectively extract fragrances from wastewater, avoiding waste of fragrances in the wastewater. Furthermore, the device has low refining costs and is suitable for fragrance recovery treatment in wastewater.

[0004] The aforementioned patent effectively extracts fragrances from wastewater, avoiding waste of fragrances in the wastewater. At the same time, the refining cost of the device is low. However, during the recycling process, the concentration difference of fragrance wastewater can easily lead to insufficient fragrance recovery. Therefore, a fragrance production wastewater treatment device with a concentration adjustment device is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a wastewater treatment device for fragrance and flavor production, so as to solve the problem that the concentration difference of fragrance wastewater can easily lead to insufficient fragrance recovery.

[0006] To achieve the above objectives, the present invention provides a wastewater treatment device for fragrance and flavor production, including a distillation tower, wherein a waste inlet pipe is provided at the top of the distillation tower, a waste outlet pipe is provided at the bottom of the distillation tower, and a discharge pipe is provided on the side wall of the distillation tower, and also includes a concentration adjustment device. The concentration adjustment device includes a concentration detector located at the top of the distillation column. The top of the distillation column rotates and is permeated by a stirring rod. A buffer inlet pipe is installed at the top of the distillation column. A partition is fixedly installed on the inner wall of the distillation column. A baffle is fixedly installed on the circumferential surface of the stirring rod. A through hole one is opened on the surface of the partition, and a through hole two is opened on the surface of the baffle. A conical guide plate is installed inside the distillation column. The discharge pipe is located below the conical guide plate. A through hole three is opened at the bottom of the conical guide plate. Initially, the through hole one on the surface of the partition and the through hole two on the surface of the baffle are misaligned, thereby allowing the wastewater to be temporarily stored in the cavity formed by the partition, the baffle, and the interior of the distillation column.

[0007] According to the above technical solution, the concentration detector is internally equipped with a concentration detection module and a signal transmission module. The buffer inlet pipe is externally connected to a water pump. The signal transmission module is electrically connected to the water pump. The concentration detector inside the distillation tower will detect the wastewater through the concentration detection module. When the detected concentration exceeds the preset value, the external water pump will be activated through the signal transmission module, so that the buffer solution enters the interior of the distillation tower through the buffer inlet pipe.

[0008] According to the above technical solution, the baffle and the partition are rotatably connected, and the upper part of the stirring rod is connected to the output end of an external motor. The external motor drives the stirring rod to rotate, thereby improving the mixing effect of waste liquid and buffer solution.

[0009] In one or more embodiments of the present invention, the bottom of the conical guide plate is provided with a separating device for preventing vapor overflow. The separating device includes a sleeve that is fitted around the circumference of the stirring rod. A float plate is fixedly installed on the outer wall of the sleeve. A conical plate is fixedly installed below the sleeve. A stop block is fixedly installed above the conical plate. A sealing ring is provided on the inner wall of the through hole three. The float plate moves upward under the action of buoyancy, thereby disengaging from the sealing ring and allowing the mixture to enter the distillation zone through the through hole three. The mixture flows into the conical plate and flows down to the surrounding area under its action, reducing the flow rate of the mixture into the distillation zone. In one or more embodiments of the present invention, a conical baffle is fixedly installed on the circumferential surface of the stirring rod, the conical baffle being disposed above the through hole three of the conical guide plate, and the outer diameter of the float plate being slightly smaller than the through hole three. In one or more embodiments of the present invention, the discharge pipe is provided with a flow limiting device for stabilizing the gas flow. The flow limiting device includes a turntable, which is rotatably mounted on the inner wall of the discharge pipe at one end inside the distillation column. A fan is provided inside the turntable. A support rod is fixedly mounted on the inner wall of the distillation column. A receiving wheel is rotatably mounted on the circumferential surface of the support rod. A connecting rod is fixedly mounted on the outer circumferential surface of the conical baffle. The fan rotates to discharge the distilled gas. During this process, the stirring rod rotates to stir the mixed liquid in the distillation zone, thereby improving the distillation efficiency.

[0010] According to the above technical solution, the upper and lower ends of the receiving wheel are respectively frictionally connected to the conical guide plate and the turntable. The rotation of the receiving wheel drives the turntable to rotate through the friction connection. The rotation of the turntable drives the fan to rotate, and the rotation of the fan realizes the discharge of distilled gas.

[0011] According to the above technical solution, the end of the connecting rod away from the conical baffle is fixedly connected to the conical guide plate, and an avoidance groove is provided on the surface of the discharge pipe.

[0012] Compared with the prior art, the beneficial effects of the present invention are: (1) The wastewater treatment device for fragrance and flavor production monitors the wastewater concentration in real time through a concentration detector, automatically replenishes the buffer solution and mixes it with a stirring rod, and maintains the wastewater concentration in a suitable range for distillation. This effectively avoids problems such as coking, sticking to the wall, blockage and decomposition of organic matter caused by excessive concentration, and also prevents the distillation energy consumption and efficiency from increasing due to excessively low concentration. At the same time, the reciprocating and alternating through holes on the baffle and the partition plate realize the slow and uniform feeding of materials, avoids the violent fluctuation of distillation conditions caused by a large amount of instantaneous feeding, and makes the entire distillation process continuous and stable, which reduces the risk of equipment failure, reduces energy waste, and improves the safety and efficiency of distillation operation.

[0013] (2) The fragrance and flavor production wastewater treatment device, through the adaptive feeding and gas-liquid isolation mechanism composed of a float plate, sealing ring, and conical plate, can automatically control the flow of the material liquid according to the liquid level. It can ensure that the mixed liquid flows smoothly into the distillation zone and effectively prevent the steam in the distillation zone from escaping upward, reducing the loss of effective components. The falling mixed liquid is guided and dispersed by the conical plate, which reduces the feed flow rate and greatly reduces the foam and material rushing phenomenon during the distillation process. With the condensation and reflux effect of the low temperature conical baffle on the escaped steam, the flavor components that are not fully separated return to the distillation zone, further improving the flavor recovery rate and the purity of the distillate, and ensuring the distillation effect.

[0014] (3) The wastewater treatment device for fragrance and flavor production can simultaneously achieve waste liquid stirring, material feeding control, conical guide plate rotation and fan drive through the stirring rod, simplifying the equipment structure and transmission layout, reducing manufacturing costs and failure probability; the stirring rod continuously stirs the material in the distillation zone, enhances heat and mass transfer, and improves evaporation efficiency; the fan speed is synchronized with the stirring shaft, which can accurately control the distillation steam discharge rate, avoid gas phase retention or unstable flow rate, prevent steam accumulation from affecting distillation pressure, and avoid excessively fast gas extraction leading to impurity entrainment, making the gas discharge more stable and orderly, and improving the overall distillation recovery efficiency and system operation stability. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the distillation column of the present invention; Figure 3 This is a schematic diagram showing the positions of the conical guide plate and the conical baffle plate of the present invention; Figure 4 This is a schematic diagram showing the positions of the conical guide disk and the conical disk of the present invention; Figure 5 This is a schematic diagram showing the positions of the conical baffle and the float plate of the present invention; Figure 6 This is a schematic diagram showing the positions of the float and the sleeve in this invention; Figure 7 For the present invention Figure 5 Enlarged structural diagram of section A.

[0016] Explanation of key figure labels: 1. Distillation column; 2. Waste inlet pipe; 3. Waste outlet pipe; 4. Discharge pipe; 401. Clearance trough; 5. Concentration detector; 6. Stirring rod; 7. Buffer inlet pipe; 8. Baffle; 801. Through hole one; 9. Baffle; 901. Through hole two; 10. Conical guide plate; 101. Through hole three; 1101. Sleeve; 1102. Float plate; 1103. Conical plate; 1104. Stop block; 1105. Sealing ring; 1106. Conical baffle plate; 1201. Turntable; 1202. Fan; 1203. Support rod; 1204. Receiving wheel; 1205. Connecting rod. Detailed Implementation

[0017] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0018] To keep the drawings concise, each drawing only schematically shows the parts relevant to the invention; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0019] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0020] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0021] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0022] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. like Figures 1-7 As shown, it illustrates a fragrance and flavor production wastewater treatment device according to an embodiment of the present invention, including a distillation tower 1, a waste inlet pipe 2 provided at the top of the distillation tower 1, a waste outlet pipe 3 provided at the bottom of the distillation tower 1, a discharge pipe 4 provided on the side wall of the distillation tower 1, and a concentration adjustment device. The concentration adjustment device includes a concentration detector 5, which is located at the top of the distillation column 1. The top of the distillation column 1 rotates and is permeated by a stirring rod 6. A buffer inlet pipe 7 is provided at the top of the distillation column 1. A partition 8 is fixedly installed on the inner wall of the distillation column 1. A baffle 9 is fixedly installed on the circumferential surface of the stirring rod 6. A through hole 801 is opened on the surface of the partition 8, and a through hole 901 is opened on the surface of the baffle 9. A conical guide plate 10 is provided inside the distillation column 1. A discharge pipe 4 is located below the conical guide plate 10. A through hole 101 is opened at the bottom of the conical guide plate 10. Initially, the through hole 801 on the surface of the partition 8 and the through hole 901 on the surface of the baffle 9 are misaligned, so that the wastewater is temporarily stored in the chamber formed above the partition 8, the baffle 9 and the interior of the distillation column 1.

[0023] The concentration detector 5 is equipped with a concentration detection module and a signal transmission module. The buffer inlet pipe 7 is connected to an external water pump. The signal transmission module is electrically connected to the water pump. The concentration detector 5 inside the distillation tower 1 will detect the wastewater through the concentration detection module. When the detected concentration exceeds the preset value, the external water pump will be activated through the signal transmission module, so that the buffer solution enters the interior of the distillation tower 1 through the buffer inlet pipe 7.

[0024] Baffle 9 is rotatably connected to partition 8, and the upper part of stirring rod 6 is connected to the output end of an external motor. The external motor drives stirring rod 6 to rotate, thereby improving the mixing effect of waste liquid and buffer solution.

[0025] In this embodiment: Fragrance and flavor production wastewater, after pretreatment, enters the interior of distillation tower 1 through waste inlet pipe 2. Initially, the through-hole 801 on the surface of partition 8 and the through-hole 901 on the surface of baffle 9 are misaligned, causing the wastewater to temporarily reside in the cavity formed above the interior of the partition 8, baffle 9, and distillation tower 1. At this time, the concentration detector 5 located inside the distillation tower 1 detects the wastewater through a concentration detection module. When the detected concentration exceeds a preset value, an external water pump is activated via a signal transmission module, allowing buffer solution to enter the interior of distillation tower 1 through buffer solution inlet pipe 7. During the process of wastewater and buffer solution entering together, they mix to bring the concentration to the preset range. When the preset water level is reached, an external motor drives the stirring rod 6 to rotate, improving the mixing effect of the wastewater and buffer solution. Simultaneously, the rotation of the stirring rod 6 drives the baffle 9 to rotate, causing the through-hole 901 on its surface to rotate. The through holes 801 on the surface of baffle 9 and partition 8 intertwine, allowing the mixed liquid in the upper cavity of the distillation column 1 to flow into the lower conical guide plate 10 through through holes 801 and 901. Finally, it enters the bottom of the distillation column 1 through through hole 101 at the bottom of the conical guide plate 10 for heating and distillation. The gas generated by distillation enters the gap between the outer conical surface of the conical guide plate 10 and the interior of the distillation column 1, and is discharged through the discharge pipe 4 for condensation, thereby collecting the fragrance in the wastewater. The addition of buffer solution can effectively maintain the concentration of wastewater, avoiding problems such as coking caused by excessive concentration. At the same time, it can reduce equipment blockage and energy waste, making the distillation process more stable, safe and efficient. Furthermore, the intertwining of through holes 901 on the surface of baffle 9 and through holes 801 on the surface of baffle 8 achieves stable discharge of the buffer solution, further improving the stability and efficiency of the distillation process.

[0026] like Figures 1-7 As shown, in another embodiment of the present invention, the bottom of the conical guide plate 10 is provided with a separating device for preventing vapor overflow. The separating device includes a sleeve 1101, which is sleeved on the circumferential surface of the stirring rod 6. A float plate 1102 is fixedly installed on the outer wall of the sleeve 1101. A conical plate 1103 is fixedly installed below the sleeve 1101. A stop block 1104 is fixedly installed above the conical plate 1103. A sealing ring 1105 is provided on the inner wall of the through hole 101. The float plate 1102 will move upward under the action of buoyancy, thereby breaking away from the contact with the sealing ring 1105 and allowing the mixture to enter the distillation zone through the through hole 101. The mixture flows into the conical plate 1103 and flows down to the surrounding area under its action, reducing the flow rate of the mixture into the distillation zone.

[0027] In this embodiment: During the distillation process, a portion of the gas escapes from the bottom distillation zone of the distillation column 1 through the through-hole 3 101 at the bottom of the conical guide plate 10. At this time, the overflowing gas is blocked by the float plate 1102. The conical guide plate 10 collects the mixture flowing down from the baffle plate 8 and the baffle 9 and gradually accumulates. At this point, the float plate 1102 contacts the sealing ring 1105 inside the through-hole 3 101, thus separating the through-hole 3 101. As the amount of mixture collected inside the conical guide plate 10 gradually increases, the float plate 1102 moves upward under the action of buoyancy, thereby separating from the sealing ring 1105. The mixture enters the distillation zone through the through-hole 101, flows into the conical disk 1103, and flows outwards under its action, reducing the flow rate of the mixture into the distillation zone. This effectively reduces foam formation and achieves effective separation of the gas in the distillation zone. At the same time, the float 1102 moves upward, causing the sleeve 1101 to move upward. The upward movement of the sleeve 1101 causes the conical disk 1103 and the baffle 1104 to move upward. The baffle 1104 moves upward, contacts the sealing ring 1105, and stops moving, preventing the float 1102 from moving too far upward, which would cause gas to escape and improve the distillation efficiency.

[0028] A conical baffle 1106 is fixedly installed on the circumferential surface of the stirring rod 6. The conical baffle 1106 is positioned above the through hole 3 101 of the conical guide plate 10. The outer diameter of the float plate 1102 is slightly smaller than that of the through hole 3 101.

[0029] In this embodiment: before the mixture falls into the conical guide plate 10, it is dispersed by the conical baffle 1106 and the flow rate is reduced. The temperature of the conical baffle 1106 is lower than that of the distillation zone, thereby achieving the condensation and reflux of some of the escaped gas, which then re-enters the distillation zone through the through hole 101 and the conical plate 1103, further improving the distillation efficiency.

[0030] like Figures 1-7 As shown, in another embodiment of the present invention, the discharge pipe 4 is provided with a flow limiting device for stabilizing the gas flow. The flow limiting device includes a turntable 1201, which is rotatably mounted on the inner wall of the discharge pipe 4 at one end inside the distillation column 1. A fan 1202 is provided inside the turntable 1201. A support rod 1203 is fixedly mounted on the inner wall of the distillation column 1. A receiving wheel 1204 is rotatably mounted on the circumferential surface of the support rod 1203. A connecting rod 1205 is fixedly mounted on the outer circumferential surface of the conical baffle 1106. The fan 1202 rotates to discharge the distilled gas. During this process, the stirring rod 6 rotates to stir the mixed liquid in the distillation zone, thereby improving the distillation efficiency.

[0031] The upper and lower ends of the receiving wheel 1204 are respectively frictionally connected to the conical guide plate 10 and the turntable 1201. The rotation of the receiving wheel 1204 drives the turntable 1201 to rotate through the friction connection. The rotation of the turntable 1201 drives the fan 1202 to rotate. The rotation of the fan 1202 realizes the discharge of distilled gas.

[0032] The end of the connecting rod 1205 away from the conical baffle 1106 is fixedly connected to the conical guide plate 10. A clearance groove 401 is provided on the surface of the discharge pipe 4.

[0033] In this embodiment: During the rotation of the stirring rod 6, the conical baffle 1106 rotates, the conical baffle 1106 rotates, the connecting rod 1205 rotates, the connecting rod 1205 rotates, the conical guide plate 10 rotates, the conical guide plate 10 rotates, the receiving wheel 1204 rotates through friction connection, the receiving wheel 1204 rotates, the turntable 1201 rotates through friction connection, the turntable 1201 rotates, the fan 1202 rotates, the fan 1202 rotates to discharge the distilled gas. During this process, the stirring rod 6 rotates to stir the mixed liquid in the distillation zone, improving the distillation efficiency, and the discharge efficiency of the fan 1202 is controlled by the rotation speed to avoid the retention of distilled gas and improve the fragrance recovery efficiency.

[0034] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0035] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A wastewater treatment device for fragrance and flavor production, comprising a distillation tower (1), wherein a waste inlet pipe (2) is provided at the top of the distillation tower (1), a waste outlet pipe (3) is provided at the bottom of the distillation tower (1), and a discharge pipe (4) is provided on the side wall of the distillation tower (1), characterized in that, It also includes a concentration adjustment device; The concentration adjustment device includes a concentration detector (5), which is located at the top of the distillation column (1). The top of the distillation column (1) is rotated and has a stirring rod (6) passing through it. The top of the distillation column (1) is provided with a buffer inlet pipe (7). A partition (8) is fixedly installed on the inner wall of the distillation column (1). A baffle (9) is fixedly installed on the circumferential surface of the stirring rod (6). A through hole (801) is opened on the surface of the partition (8). A through hole (901) is opened on the surface of the baffle (9). A conical guide plate (10) is provided inside the distillation column (1). The discharge pipe (4) is located below the conical guide plate (10). A through hole (101) is opened at the bottom of the conical guide plate (10).

2. The fragrance and flavor production wastewater treatment device according to claim 1, characterized in that, The concentration detector (5) is equipped with a concentration detection module and a signal transmission module. The buffer inlet pipe (7) is connected to a water pump. The signal transmission module is electrically connected to the water pump.

3. The fragrance and flavor production wastewater treatment device according to claim 2, characterized in that, The baffle (9) is rotatably connected to the partition (8), and the upper part of the stirring rod (6) is connected to the output end of an external motor.

4. The fragrance and flavor production wastewater treatment device according to claim 3, characterized in that, The bottom of the conical guide plate (10) is provided with a separation device for preventing steam overflow. The separation device includes a sleeve (1101), which is sleeved on the circumferential surface of the stirring rod (6). A float plate (1102) is fixedly installed on the outer wall of the sleeve (1101). A conical plate (1103) is fixedly installed below the sleeve (1101). A stop block (1104) is fixedly installed above the conical plate (1103). A sealing ring (1105) is provided on the inner wall of the through hole three (101).

5. The fragrance and flavor production wastewater treatment device according to claim 4, characterized in that, A conical baffle (1106) is fixedly installed on the circumferential surface of the stirring rod (6). The conical baffle (1106) is positioned above the through hole three (101) of the conical guide plate (10). The outer diameter of the float plate (1102) is slightly smaller than that of the through hole three (101).

6. The fragrance and flavor production wastewater treatment device according to claim 5, characterized in that, The discharge pipe (4) is equipped with a flow limiting device for stabilizing airflow discharge. The flow limiting device includes a turntable (1201). The turntable (1201) is rotatably installed on the inner wall of the discharge pipe (4) located at one end inside the distillation column (1). A fan (1202) is installed inside the turntable (1201). A support rod (1203) is fixedly installed on the inner wall of the distillation column (1). A receiving wheel (1204) is rotatably installed on the circumferential surface of the support rod (1203). A connecting rod (1205) is fixedly installed on the outer circumferential surface of the conical baffle (1106).

7. The fragrance and flavor production wastewater treatment device according to claim 6, characterized in that, The upper and lower ends of the receiving wheel (1204) are respectively frictionally connected to the conical guide plate (10) and the turntable (1201).

8. The fragrance and flavor production wastewater treatment device according to claim 7, characterized in that, The end of the connecting rod (1205) away from the conical baffle (1106) is fixedly connected to the conical guide plate (10). The surface of the discharge pipe (4) is provided with a clearance groove (401).

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