CN217988430U - Natural nicotine purification system - Google Patents
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- CN217988430U CN217988430U CN202221540478.XU CN202221540478U CN217988430U CN 217988430 U CN217988430 U CN 217988430U CN 202221540478 U CN202221540478 U CN 202221540478U CN 217988430 U CN217988430 U CN 217988430U
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Abstract
The utility model relates to a natural nicotine purification system for with the tobacco extract raw materials that nicotine content accounts for 40%, through anti-emulsifier preparation, alkalization processing, extraction separation, the subsides of stewing, waste water separation, distillation desolventizing, rectification process, purification is more than or equal to 99.95% to the purity, and the nicotine yield reaches more than 99.5%. Compared with the prior purification process, the utility model discloses between extraction and the distillation process in the system, inserted and be used for stewing to subside at least one settling cask that extracts the mixed liquid and, in the rectification process, set up the adjustable backflow passage of proportion that is used for forced reflux rectification liquid. The method is favorable for precipitation and separation of extracted materials, is favorable for using the raw materials completely, and breaks through the limitations of low purity, low yield, large waste discharge and the like of the existing purification process; the equipment is few, the automatic operation is easy to realize, and the popularization value is high.
Description
Technical Field
The utility model relates to a natural nicotine purification system especially relates to a natural nicotine rectification is forced reflux system for purification, is applied to and is 40% nicotine sulfate raw materials purification to natural nicotine purity and is greater than 99.95%, and the nicotine yield reaches the production line more than 99.5%, belongs to natural plant active ingredient purification equipment technical field.
Background
The nicotine is an effective component for cigarettes in the tobacco raw materials, and the natural nicotine product is mainly used as a functional additive of the electronic cigarette atomized liquid, and is used in small amount as a smoking cessation medicament and an insecticide in medicine. The natural nicotine is obtained by processing a small amount of tobacco residue wastes such as tobacco powder, broken stems, tobacco leaf fragments and the like generated in the tobacco processing process. The obtained natural nicotine has small amount of impurities, which are mainly flavor substances in tobacco. Due to differences in many aspects such as production areas, varieties and natural fermentation degrees of tobacco leaves, the components of the impurities are different, and due to factors of the impurities, the fragrance and the aroma of the natural nicotine raw materials used in the electronic cigarette industry are different to a certain extent, that is, the purity of the natural nicotine raw materials is insufficient, so that the fragrance of the electronic cigarette atomized liquid is influenced to a great extent (the consistency is poor), and the product quality of the electronic cigarette is further influenced.
The prior domestic and overseas well-known natural nicotine purification process comprises the following steps:
40% nicotine sulfate → alkalization treatment → extraction separation → distillation desolvation → rectification purification → sealed storage
In the process, 40% nicotine sulfate refers to: the liquid natural nicotine content of the tobacco extract is about 40 percent, and the liquid natural nicotine with the purity higher than 99 percent can be obtained by alkalizing, extracting, distilling and rectifying the raw material. Because the raw materials belong to valuables and have toxic hazard to water ecology, the residues after extraction can be discharged after being treated. Therefore, the improvement of purity and the increase of recovery yield are always important targets continuously pursued in the industry.
The existing purification process has the following defects:
1. because a direct separation mode is adopted after extraction, enough settling separation time required for settling and separating substances in the materials is not given, so that a waste water layer contains the solvent and nicotine, and water-soluble impurities in the solvent can not be effectively separated. Under the condition of water, the boiling point of nicotine is greatly reduced, so that the recovery rate of natural nicotine is insufficient, and the final comprehensive recovery rate is only about 83.5 percent.
2. In the rectification purification process, because a forced reflux pipe is not arranged, although a small amount of distillate naturally refluxes along the upper part of the rectification tower due to natural temperature reduction of a rectification tower pipe, the ratio of the reflux amount to the collection amount of a finished product is too small (less than 10 percent), the removal of high-boiling-point impurities in the material is extremely not facilitated, and the final purity cannot reach an ideal target. Based on this, in the international and domestic industries, the purity of natural nicotine purified by the process is only about 99.0%, and the highest purity is less than 99.8%.
The related process equipment in the aspect of purifying natural nicotine at home and abroad is searched, and a forced reflux loop is not arranged in the rectification process so as to facilitate the introduction or the published documents of improving the purity of finished nicotine.
Disclosure of Invention
The utility model aims at the background art problem, design a natural nicotine purification system for with nicotine content account for 40% tobacco extract raw materials, through anti-emulsifier preparation, alkalization processing, extraction separation, the subsides of stewing, waste water separation, distillation desolventizer, rectification purification process, purification to the purity be greater than or equal to 99.95% natural nicotine raw materials for cigarette, and the nicotine yield reaches more than 99.5%. Compared with the existing purification process, the system has the advantages that between the extraction and distillation processes, a settling tank for standing, settling and extracting mixed liquid is inserted, and in the rectification process, a proportional adjustable backflow channel for forcibly refluxing the rectification liquid is arranged.
The technical scheme of the utility model is that: a natural nicotine purification system comprises the following components which are connected in sequence according to the material flow direction: the device comprises a dosing tank 1, a mixing tank 2, an extraction tank 3, a clear liquid receiving tank 6, a pipeline viewing mirror 7, a No. 1 delivery pump 8, a distillation tower 9, a first condenser 10, a solvent recovery tank 11, a No. 2 delivery pump 12, a solvent cache tank 13, a feeding cache tank 14, a rectification tower 15, a rectification tower pipe 16 with a built-in stainless steel wire gauze packing, a second condenser 17, a condensate buffer tank 18, a qualified product receiving tank 20, a unqualified product receiving tank 21 and a rectification liquid collecting pipe 25; the device also comprises a controller for detecting and controlling the operation of each device or equipment: the system comprises a vacuum pump, a negative pressure pipeline, a cooling water circulating pipeline, a chilled water circulating pipeline, a heat conducting oil circulating pipeline, a temperature sensor, a pressure sensor, a flowmeter, a liquid level meter, an electric control valve and a centralized control system;
the batching tank 1 is used for preparing the anti-emulsifier which is added according to a set proportion; the mixing tank 2 is used for mixing the tobacco extract raw material with the anti-emulsifier according to a set proportion to prepare an extract liquid; the extraction tank 3 is used for mixing the extraction liquid and normal hexane according to a set proportion and stirring to prepare an extraction mixed liquid; the distillation tower 9 is used for separating n-hexane from the clear liquid in the clear liquid receiving tank 6 in a heating, evaporation and condensation mode to obtain crude absolute oil with nicotine purity of more than or equal to 95%; the rectifying tower 15 is used for removing impurities in the crude absolute oil in a heating, evaporating and recondensing mode to obtain a high-purity nicotine product with the purity of more than or equal to 99.95%, and the high-purity nicotine product is input into the qualified product receiving tank 20 through the rectifying liquid collecting pipe 25; constant-temperature heating jackets are arranged outside the distillation tower 9 and the rectifying tower 15, and heat exchange tubes are arranged inside the first condenser 10 and the second condenser 17;
the rectifying tower pipe 16 is vertically connected above the rectifying tower 15, the material input end of the second condenser 17 is connected with the upper end of the rectifying tower pipe 16, the material output end of the second condenser 17 is connected with the input end of the condensate buffer tank 18, the feed inlet of the rectifying liquid collecting pipe 25 is communicated with the condensate buffer tank 18, and the qualified product receiving tank 20 and the unqualified product receiving tank 21 are respectively communicated with the discharge outlet of the rectifying liquid collecting pipe 25 through valves;
the centralized control system is used for acquiring signals required to be detected in the purification system and controlling the execution elements in the purification system to operate in order; the method is characterized in that:
at least one settling tank 4 is connected in series between the extraction tank 3 and the clear liquid receiving tank 6, and an outlet of the condensate buffer tank 18 is connected with an automatic forced reflux distributor 19;
the settling tank 4 is used for receiving extraction mixed liquor; and in a standing state with the time more than or equal to 60 hours, the extraction mixed liquid layer is divided into: clear liquid, emulsion, waste water; the clear liquid is n-hexane solution extracted with nicotine; an observation window and a clear liquid discharge port are arranged on the side part of the settling tank 4, and a discharge port capable of sequentially discharging wastewater and emulsion is arranged at the bottom of the settling tank 4;
the automatic forced backflow distributor 19 is a three-way container comprising: the device comprises a liquid inlet and two liquid outlets, wherein electric control valves are respectively arranged on the liquid inlet and the liquid outlets, one liquid outlet is connected with the upper end of a rectification liquid collecting pipe 25, and the other liquid outlet is communicated with the upper part of a rectification tower pipe 16 through a return pipe 22 to form a rectification liquid forced return channel; in the operation process, the flow ratio between the return pipe 22 and the rectification liquid collecting pipe 25 can be adjusted by adjusting the opening of the electric control valves of the two liquid outlets; the beneficial effects are as follows: the method is favorable for removing impurities in the crude absolute oil to the maximum extent in the precise control rectification process, so as to obtain a high-purity nicotine product with the purity of more than or equal to 99.95 percent and improve the nicotine yield.
Furthermore, a metering pump 23 is connected in series between the return pipe 22 and a liquid outlet of the automatic forced reflux distributor 19, and an electromagnetic flowmeter 26 is connected in series between an outlet of the condensate buffer tank 18 and a liquid inlet of the automatic forced reflux distributor 19; the beneficial effects are as follows: the flow rate of the return pipe 22 can be controlled in real time according to the detection value of the electromagnetic flowmeter 26, so as to precisely control the flow rate distribution ratio between the two liquid outlets.
Further, the automatic forced reflux distributor 19 is a split-flow three-way proportional valve 27, an electromagnetic flowmeter 26 is connected in series between a liquid inlet of the split-flow three-way proportional valve 27 and a liquid outlet of the condensate buffer tank 18, and a liquid outlet of the split-flow three-way proportional valve 27 is respectively connected with the reflux pipe 22 and the rectification liquid collecting pipe 25; the beneficial effects are as follows: the flow distribution ratio of the flow-dividing three-way proportional valve 27 can be controlled in real time according to the detection value of the electromagnetic flowmeter 26.
The utility model has the advantages and beneficial effects that:
(1) The utility model discloses the most outstanding innovation point lies in: the standing and settling process is added, and the settling time is set to be more than 60 hours, so that the precipitation and separation of the extracted materials are facilitated, the comprehensive recovery rate of the natural nicotine in the raw materials is improved to be more than 99.5%, the raw materials are favorably used up, and the environmental protection pressure is favorably reduced.
(2) Adopt the utility model discloses technical scheme, the rectification process has set up the forced reflux channel that can accurate regulation flow, and current technology compares, both can increase substantially the backward flow volume value in the rectification process, makes the purity of finished product nicotine can reach more than 99.95% again, is favorable to adapting to the purity demand of end user to the product extremely.
(3) The technical scheme of the invention has the advantages of less required equipment, easy realization of automatic operation, low energy consumption of unit products, high comprehensive utilization rate of raw materials, less waste discharge and low cost for waste treatment.
(4) The utility model discloses technical scheme spreading value is high.
Drawings
FIG. 1 is a schematic diagram of an apparatus configuration of a "natural nicotine purification system" according to an embodiment of the present invention;
FIG. 2 is an enlarged schematic view of the reflux portion of the rectification in FIG. 1;
FIG. 3 is a schematic view of a second embodiment of the rectification reflux portion of the arrangement of FIG. 1;
FIG. 4 is a schematic diagram of the third embodiment of the rectification reflux part in FIG. 1.
Description of the reference symbols in the drawings:
in fig. 1 and 2: 1-batching jar, 2-compounding jar, 3-extraction jar, 4-settling tank, 5-pipeline filter, 6-clear liquid receiving tank, 7-pipeline sight glass, 8-1 # delivery pump, 9-distillation column, 10-condenser I, 11-solvent recovery jar, 12-2 # delivery pump, 13-solvent buffer tank, 14-feed buffer tank, 15-rectifying column, 16-rectifying column pipe, 17-condenser II, 18-condensate buffer tank, 19-automatic forced reflux distributor, 20-qualified product receiving tank, 21-unqualified product receiving tank, 22-reflux pipe, 24-sample collection valve, 25-rectifying liquid collection pipe.
In FIG. 3, 23 is a metering pump, and 26 is an electromagnetic flowmeter.
In fig. 4: 27-split three-way proportional valve.
In fig. 2 to 4, L = L1+ L2, as can be seen from the drawings, L represents the total flow rate of the liquid outlet of the condensate buffer tank 18, L1 represents the flow rate of the return pipe 22, and L2 represents the flow rate of the rectification liquid collecting pipe 25.
Detailed Description
Embodiments of the invention will be further explained with reference to the drawings, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below are exemplary and are intended to be illustrative, but not limiting, of the present invention, and any modifications, equivalents, or improvements made within the spirit and principles of the present invention are intended to be included within the scope of the claims of the present invention, which are not detailed in the present technical solution, and are known in the art.
The utility model relates to a natural nicotine purification system for with the tobacco extract raw materials that nicotine content accounts for 40%, through anti-emulsifier preparation, alkalization processing, extraction separation, the subsides of stewing, waste water separation, distillation desolventizing, rectification purification process, purification is not less than 99.95% to the nicotine purity, and the nicotine yield reaches more than 99.5% in the raw materials.
The first embodiment is as follows:
referring to fig. 1 and 2, the purification system comprises: the device comprises a dosing tank 1, a mixing tank 2, an extraction tank 3, a settling tank 4, a pipeline filter 5, a clear liquid receiving tank 6, a pipeline viewing mirror 7, a 1# delivery pump 8, a distillation tower 9, a condenser I10, a solvent recovery tank 11, a 2# delivery pump 12, a solvent cache tank 13, a feeding cache tank 14, a rectification tower 15, a rectification tower pipe 16 with a built-in stainless steel wire gauze filler, a condenser II 17, a condensate buffer tank 18, an automatic forced reflux distributor 19, a qualified product receiving tank 20, a unqualified product receiving tank 21, a reflux pipe 22, a sample collection valve 24 and a rectification liquid collection pipe 25; the system also comprises a controller used for detecting and controlling the operation of each device or equipment: the system comprises a vacuum pump, a negative pressure pipeline, a cooling water circulating pipeline, a chilled water circulating pipeline, a heat conducting oil circulating pipeline, a temperature sensor, a pressure sensor, a flowmeter, a liquid level meter, an electric control valve and a centralized control system.
The batching tank 1 is used for preparing the anti-emulsifier which is added according to a set proportion; the mixing tank 2 is used for mixing the tobacco extract raw material with the anti-emulsifier according to a set proportion to prepare an extract liquid; the extraction tank 3 is used for mixing the extraction liquid and normal hexane according to a set proportion and stirring to prepare an extraction mixed liquid; the distillation tower 9 is used for separating n-hexane from the clear liquid in the clear liquid receiving tank 6 in a heating, evaporation and condensation mode to obtain crude absolute oil with nicotine purity of more than or equal to 95%; the rectifying tower 15 is used for removing impurities in the crude absolute oil in a heating, evaporating and recondensing mode to obtain a high-purity nicotine product with the purity of more than or equal to 99.95%, and the high-purity nicotine product is input into the qualified product receiving tank 20 through the rectifying liquid collecting pipe 25; constant-temperature heating jackets are arranged outside the distillation tower 9 and the rectifying tower 15, and heat exchange tubes are arranged inside the first condenser 10 and the second condenser 17.
The rectifying tower tube 16 is vertically connected above the rectifying tower 15, the material input end of the second condenser 17 is connected with the upper end of the rectifying tower tube 16, the material output end of the second condenser 17 is connected with the input end of the condensate buffer tank 18, the feed inlet of the rectifying liquid collecting tube 25 is communicated with the condensate buffer tank 18, and the qualified product receiving tank 20 and the unqualified product receiving tank 21 are respectively communicated with the discharge outlet of the rectifying liquid collecting tube 25 through valves.
The centralized control system is used for collecting signals needing to be detected in the purification system and controlling the execution elements in the purification system to operate in order. At least one settling tank 4 is connected in series between the extraction tank 3 and the clear liquid receiving tank 6, and an outlet of the condensate buffer tank 18 is connected with an automatic forced reflux distributor 19.
The settling tank 4 is used for receiving extraction mixed liquor; and in a standing state with the time more than or equal to 60 hours, the extraction mixed liquid layer is divided into: clear liquid, emulsion, waste water; the clear liquid is n-hexane solution extracted with nicotine; an observation window and a clear liquid discharge port are arranged on the side part of the settling tank 4, and a discharge port capable of sequentially discharging wastewater and emulsion is arranged at the bottom of the settling tank 4.
As shown in fig. 2, the automatic forced backflow distributor 19 is a three-way container including: the device comprises a liquid inlet and two liquid outlets, wherein electric control valves are respectively arranged on the liquid inlet and the liquid outlets, one liquid outlet is connected with the upper end of a rectification liquid collecting pipe 25, and the other liquid outlet is communicated with the upper part of a rectification tower pipe 16 through a return pipe 22 to form a rectification liquid forced return channel; in the operation process, the flow ratio between the return pipe 22 and the rectification liquid collecting pipe 25 is adjustable by adjusting the opening of the two liquid outlet electric control valves, the ratio is set to be I, as can be seen from fig. 2, L is the total liquid outlet flow of the condensate buffer tank 18, L1 is the flow of the return pipe 22, L2 is the flow of the rectification liquid collecting pipe 25, and as can be seen from the figure, L = L1+ L2, and I = L1/L2. When the rectification liquid collecting pipe 25 is turned off and the return pipe 22 is fully opened, L1= L, and the value of I is infinite; when the rectification liquid collecting pipe 25 is fully opened and the return pipe 22 is closed, L2= L, and I is 0. In the actual production process, according to the requirement of the rectification process, the value I is changed from the maximum value to the minimum value, when the value I is set to be = (5~3), the nicotine purity of the rectification liquid flowing out of the condensate buffer tank 18 is more than or equal to 99.95%, and the content of single high-boiling-point impurities reaches a set interval value, namely: when mg/kg is 100 to 200, the high-purity nicotine product flowing out of the rectification liquid collecting pipe 25 is led into a qualified product receiving tank 20, otherwise, the high-purity nicotine product is led into a unqualified product receiving tank 21. After the rectification is finished, the unqualified rectification liquid collected by the unqualified product receiving tank 21 flows back to the clear liquid receiving tank 6, and the cycle is repeated. The beneficial effects are as follows: the method is favorable for removing impurities in the crude absolute oil to the maximum extent in the precise control rectification process, so as to obtain a high-purity nicotine product with the purity of more than or equal to 99.95 percent and improve the nicotine yield.
Example two:
referring to fig. 3, it is another embodiment of the forced reflux part in the technical solution of the present invention, the automatic forced reflux distributor 19 is the same as the first embodiment, but a metering pump 23 is connected in series between the reflux pipe 22 and a liquid outlet of the automatic forced reflux distributor 19, and an electromagnetic flow meter 26 is connected in series between an outlet of the condensate buffer tank 18 and a liquid inlet of the automatic forced reflux distributor 19; the beneficial effects are as follows: the flow rate of the return pipe 22 can be controlled in real time according to the detection value of the electromagnetic flowmeter 26, so as to precisely control the flow rate distribution ratio I between the two liquid outlets.
Example three:
referring to fig. 4, which is a third embodiment of the forced reflux part in the technical solution of the present invention, a shunt three-way proportional valve 27 is used to replace the automatic forced reflux distributor 19 in fig. 2 or fig. 3 in fig. 3, and an electromagnetic flow meter 26 is connected in series between the liquid inlet of the shunt three-way proportional valve 27 and the liquid outlet of the condensate buffer tank 18, and two liquid outlets of the shunt three-way proportional valve 27 are respectively communicated with the reflux pipe 22 and the rectification liquid collecting pipe 25; when the flow distribution ratio I is operated, the centralized control system accurately controls the flow distribution ratio I of the split-flow three-way proportional valve 27 in real time according to the detection value of the electromagnetic flowmeter 26.
The utility model discloses the most outstanding innovation point lies in: the settling tank 4 for standing and settling is added in the extraction tank 3, and the settling time is set to be more than 60 hours, so that the precipitation and separation of the extracted materials are facilitated, the comprehensive recovery rate of the natural nicotine in the raw materials is improved to be more than 99.5%, the raw materials are favorably used up, and the environmental protection pressure is favorably reduced. Compared with the prior art, the forced reflux channel capable of accurately adjusting the flow is arranged in the rectification process, so that the reflux value in the rectification process can be greatly increased, the purity of finished nicotine can reach more than 99.95%, and the purity requirement of a final user on the product can be met. The technical scheme of the invention has the advantages of less required equipment, easy realization of automatic operation, low energy consumption of unit products, high comprehensive utilization rate of raw materials, low waste discharge, low cost for waste treatment and high popularization value.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," "secured," and the like are to be construed broadly, e.g., as a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, a first feature "on" or "under" a second feature may be directly contacting the second feature or the first and second features may be indirectly contacting the second feature through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Claims (3)
1. A natural nicotine purification system for purifying nicotine in a tobacco extract material, the purification process comprising: the method comprises the following steps of anti-emulsifier preparation, alkalization treatment, extraction separation, standing sedimentation, wastewater separation, distillation desolventization and rectification, wherein a purification system comprises the following components which are sequentially connected according to the material flow direction: the device comprises a dosing tank, a mixing tank, an extraction tank, a clear liquid receiving tank, a pipeline sight glass, a No. 1 delivery pump, a distillation tower, a first condenser, a solvent recovery tank, a No. 2 delivery pump, a solvent cache tank, a feeding cache tank, a rectification tower pipe, a second condenser, a condensate buffer tank, a qualified product receiving tank, a unqualified product receiving tank and a rectification liquid collecting pipe; the device also comprises a controller for detecting and controlling the operation of each device or equipment: the system comprises a vacuum pump, a negative pressure pipeline, a cooling water circulating pipeline, a chilled water circulating pipeline, a heat conducting oil circulating pipeline, a temperature sensor, a pressure sensor, a flowmeter, a liquid level meter, an electric control valve and a centralized control system; the batching tank is used for preparing the anti-emulsifier which is added according to a set proportion; the mixing tank is used for mixing the tobacco extract raw material with the anti-emulsifier according to a set proportion to prepare an extract liquid; the extraction tank is used for mixing the extraction liquid and normal hexane according to a set proportion and stirring the mixture to prepare an extraction mixed liquid; the distillation tower is used for separating n-hexane from the clear liquid in the clear liquid receiving tank in a heating evaporation and condensation mode to obtain crude clean oil; the rectifying tower is used for removing impurities in the crude clean oil in a heating evaporation and recondensing mode to obtain a high-purity nicotine product; constant-temperature heating jackets are arranged outside the distillation tower and the rectifying tower, and heat exchange tubes are arranged inside the first condenser and the second condenser; the rectifying tower pipe is vertically connected above the rectifying tower, the material input end of the condenser II is connected with the upper end of the rectifying tower pipe, the material output end of the condenser II is connected with the input end of the condensate buffer tank, the feed port of the rectifying liquid collecting pipe is communicated with the condensate buffer tank, and the qualified product receiving tank and the unqualified product receiving tank are respectively communicated with the discharge port of the rectifying liquid collecting pipe through valves; the centralized control system is used for acquiring signals required to be detected in the purification system and controlling the execution elements in the purification system to operate in order; the method is characterized in that:
at least one settling tank is connected between the extraction tank and the clear liquid receiving tank in series, and an outlet of the condensate buffer tank is connected with an automatic forced reflux distributor;
the settling tank is used for receiving the extraction mixed liquid; an observation window and a clear liquid discharge port are arranged on the side part of the settling tank, and a discharge port capable of sequentially discharging wastewater and emulsion is arranged at the bottom of the settling tank;
the automatic forced backflow dispenser is a three-way container comprising: the device comprises a liquid inlet and two liquid outlets, wherein electric control valves are respectively arranged on the liquid inlet and the liquid outlets, one liquid outlet is connected with the upper end of a rectification liquid collecting pipe, and the other liquid outlet is communicated with the upper part of a rectification tower pipe through a return pipe to form a rectification liquid forced return channel; the opening of the electric control valves of the two liquid outlets can be adjusted in the operation process.
2. A natural nicotine purification system as claimed in claim 1, wherein: and a metering pump is connected in series between the return pipe and a liquid outlet of the automatic forced reflux distributor, and an electromagnetic flowmeter is connected in series between an outlet of the condensate buffer tank and a liquid inlet of the automatic forced reflux distributor.
3. A natural nicotine purification system as claimed in claim 1, wherein: the automatic forced reflux distributor is a shunting three-way proportional valve, an electromagnetic flowmeter is connected in series between a liquid inlet of the shunting three-way proportional valve and a liquid outlet of the condensate buffer tank, and the liquid outlet of the shunting three-way proportional valve is respectively connected with a reflux pipe and a rectification liquid collecting pipe.
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| CN202221540478.XU CN217988430U (en) | 2022-06-20 | 2022-06-20 | Natural nicotine purification system |
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| CN202221540478.XU CN217988430U (en) | 2022-06-20 | 2022-06-20 | Natural nicotine purification system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115181089A (en) * | 2022-06-20 | 2022-10-14 | 托拔克生物科技(衡阳)有限公司 | Natural nicotine purification process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115181089A (en) * | 2022-06-20 | 2022-10-14 | 托拔克生物科技(衡阳)有限公司 | Natural nicotine purification process |
| CN115181089B (en) * | 2022-06-20 | 2024-03-26 | 湖北托拔克生物科技有限公司 | Natural nicotine purifying process |
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Effective date of registration: 20230919 Address after: 445700 Sihe Industrial Park, Lushui Township, Laifeng County, Enshi Tujia and Miao Autonomous Prefecture, Hubei Province Patentee after: Hubei Tobak Biotechnology Co.,Ltd. Address before: No. 1, Keji Road, Guiyang Industrial Park, Qidong County, Hengyang City, Hunan Province, 421681 Patentee before: Tobak Biotechnology (Hengyang) Co.,Ltd. |
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