CN211585573U - Sevoflurane crude stock solution processing apparatus - Google Patents
Sevoflurane crude stock solution processing apparatus Download PDFInfo
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- CN211585573U CN211585573U CN201922192740.0U CN201922192740U CN211585573U CN 211585573 U CN211585573 U CN 211585573U CN 201922192740 U CN201922192740 U CN 201922192740U CN 211585573 U CN211585573 U CN 211585573U
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Abstract
The utility model discloses a sevoflurane crude product stock solution treatment device, which comprises a pressure filter cylinder, wherein one end of the pressure filter cylinder is provided with a sealing end; the other end of the filter pressing cylinder is provided with a filter pressing plate; a filter pressing screen is arranged at the bottom of one end, close to the sealing end, of the filter pressing cylinder; the middle part of the filter pressing cylinder is provided with a waste discharge flange; the waste discharge flange is provided with a switch valve; a pressure filter rod is fixed at one end of the outer part of the pressure filter cylinder, which is far away from the sealing end; the filter pressing rod movably extends into the filter pressing cylinder and is fixed with the filter pressing plate; the filter pressing rod is driven by a power telescopic mechanism; the top of the filter pressing cylinder is provided with a feeding flange opposite to the filter pressing screen; the utility model discloses a sevoflurane crude stoste processing apparatus obtains sevoflurane crude stoste after adopting colating and filter-pressing to can retrieve through washing and follow-up distillation and remain sevoflurane crude stoste, its yield is high, and sevoflurane crude stoste impurity content is few.
Description
Technical Field
The utility model relates to a sevoflurane production facility, concretely relates to sevoflurane crude stoste processing apparatus belongs to sevoflurane production facility technical field.
Background
Sevoflurane, the chemical name of which is 1,1,1,3,3, 3-hexafluoro-2 (fluoromethoxy) propane, is an ideal inhalation anesthetic after halothane, enflurane and isoflurane, is approved by the American FDA to be on the market in 1995, and has the advantages of short induction period, quick recovery, easiness in metabolism, low blood gas distribution coefficient, hemodynamics stability, small adverse reaction on a human body, easiness in adjusting anesthesia depth, non-flammability and explosiveness and the like; therefore, the anesthetic is more and more paid attention and adopted by people in general anesthesia of the operation, and has wide market prospect; the preparation process of sevoflurane in the prior art comprises the steps of firstly preparing a sevoflurane crude product, and rectifying the sevoflurane crude product to obtain a sevoflurane finished product; in the prior art, high-temperature distillation is needed to distill out sevoflurane, and with the continuous rise of the distillation temperature and the continuation of the distillation time, sevoflurane and a solid-liquid mixture in a kettle generate side reaction to degrade sevoflurane, so that the content of impurities in a prepared crude sevoflurane product is increased, and particularly, the content of impurities close to the sevoflurane is increased, therefore, the existing crude sevoflurane product preparation equipment and preparation process need to be improved.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a sevoflurane crude stoste processing apparatus adopts and obtains sevoflurane crude after colating and the filter-pressing to can retrieve remaining sevoflurane crude through washing and follow-up distillation.
The utility model discloses a sevoflurane crude product stoste processing apparatus, earlier through stirring and colating mode, get rid of the coarse impurity in the synthetic stoste of sevoflurane crude product in advance, the liquid that accomplishes the colating enters into a filter-pressing section of thick bamboo, drive the filter-pressing board through power telescopic machanism and be close to the sealed end, thereby extrude the filtrating above the filter-pressing screen cloth, directly send sevoflurane crude product stoste to stoste receiving barrel, it does not can obtain sevoflurane crude product stoste through high temperature distillation, remaining sevoflurane crude product pours into washing water into the prefilter through the water supply network, washing water can enough erode sevoflurane crude product stoste; the sevoflurane is insoluble in water, and part of water-soluble impurities are directly dissolved in water, and finally, the sevoflurane is pumped to a distiller through a material lifting pump, the residual crude sevoflurane product stock solution is distilled out at the distillation temperature of 80 ℃, so that the preparation of the crude sevoflurane product stock solution can be finished, and the crude sevoflurane product stock solution is further distilled to obtain a finished sevoflurane product; the concrete structure is as follows: the device comprises a pressure filter cylinder, wherein a sealing end head is arranged at one end of the pressure filter cylinder; the other end of the filter pressing cylinder is provided with a filter pressing plate; a filter pressing screen is arranged at the bottom of one end, close to the sealing end, of the filter pressing cylinder; the middle part of the filter pressing cylinder is provided with a waste discharge flange; the waste discharge flange is provided with a switch valve; a pressure filter rod is fixed at one end of the outer part of the pressure filter cylinder, which is far away from the sealing end; the filter pressing rod movably extends into the filter pressing cylinder and is fixed with the filter pressing plate; the filter pressing rod is driven by a power telescopic mechanism; the top of the filter pressing cylinder is provided with a feeding flange opposite to the filter pressing screen; the feeding flange is connected with the primary filter cylinder at the upper position through a feeding valve; an electric stirring mechanism is arranged on the primary filter cylinder; a waste discharge valve is arranged on the side of the primary filter cylinder; a liquid inlet flange is arranged at the upper part of the primary filter cylinder; a primary filter screen is arranged at the bottom of the primary filter cylinder; a water supply pipe network is also arranged at the top of the primary filter cylinder; a liquid discharge hopper is arranged at the position, right opposite to the filter pressing screen, outside the filter pressing cylinder; the bottom of the liquid discharge hopper is connected to the storage hopper; the bottom of the storage hopper is respectively connected to the stock solution receiving barrel and the material lifting pump through a three-way valve; the material lifting pump is connected to the distiller; can be outside impurity discharge through exhaust valve and ooff valve to wash whole processing apparatus through the water supply pipe network.
Further, a one-way valve is arranged between the three-way valve and the material lifting pump.
Furthermore, a flexible surface layer is arranged at one end, close to the sealing end, of the filter pressing plate.
Further, the power telescopic mechanism is a hydraulic cylinder or an electric ball screw.
Compared with the prior art, the utility model discloses a sevoflurane crude stoste processing apparatus adopts and obtains sevoflurane crude stoste after colating and the filter-pressing to can retrieve through washing and follow-up distillation and remain sevoflurane crude stoste, its yield is high, and sevoflurane crude stoste impurity content is few.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Detailed Description
Example 1:
the device for treating the crude sevoflurane crude product stock solution as shown in fig. 1 is characterized in that crude impurities in the crude sevoflurane crude product synthetic stock solution are removed in advance in a stirring and rough filtering mode, rough-filtered liquid enters a filter pressing barrel, a pressure filter plate is driven to be close to a sealing end through a power telescopic mechanism, so that filtrate is extruded above a filter pressing screen, the crude sevoflurane crude product stock solution is directly conveyed to a stock solution receiving barrel, high-temperature distillation is not carried out on the crude sevoflurane crude product stock solution to obtain the crude sevoflurane crude product stock solution, cleaning water is filled into a primary filter barrel through a water supply pipe network for the residual crude sevoflurane product, and the cleaning water can flush the; the sevoflurane is insoluble in water, and part of water-soluble impurities are directly dissolved in water, and finally, the sevoflurane is pumped to a distiller through a material lifting pump, the residual crude sevoflurane product stock solution is distilled out at the distillation temperature of 80 ℃, so that the preparation of the crude sevoflurane product stock solution can be finished, and the crude sevoflurane product stock solution is further distilled to obtain a finished sevoflurane product; the concrete structure is as follows: the device comprises a pressure filter cylinder 1, wherein a sealing end head 2 is arranged at one end of the pressure filter cylinder 1; the other end of the filter pressing cylinder 1 is provided with a filter pressing plate 3; a filter pressing screen 4 is arranged at the bottom of one end, close to the sealing end, of the filter pressing cylinder 1; the middle part of the filter pressing cylinder 1 is provided with a waste discharge flange 5; the waste discharge flange 5 is provided with a switch valve 6; a filter pressing rod 7 is fixed at one end of the outer part of the filter pressing cylinder 1 far away from the sealing end; the filter pressing rod 7 movably extends into the filter pressing cylinder and is fixed with the filter pressing plate 3; the filter pressing rod 7 is driven by a power telescopic mechanism 8; the top of the filter pressing cylinder 1 is provided with a feeding flange 9 opposite to the filter pressing screen; the feed flange 9 is connected to an upper primary filter cartridge 10 via a feed valve (not shown); the primary filter cylinder 10 is provided with an electric stirring mechanism 11; a waste discharge valve 12 is arranged at the side of the primary filter cylinder 10; a liquid inlet flange 13 is arranged at the upper part of the primary filter cylinder 10, and the synthetic mixed liquid is led into the primary filter cylinder 10 through the liquid inlet flange 13; a primary filter screen 14 is arranged at the bottom of the primary filter cylinder 10; the top of the primary filter cylinder 10 is also provided with a water supply pipe network 15; a liquid discharge hopper 16 is arranged at the position of the filter pressing cylinder 1 opposite to the filter pressing screen; the bottom of the liquid discharge hopper 16 is connected to a storage hopper 17; the bottom of the storage hopper 17 is respectively connected to a stock solution receiving barrel and a material lifting pump 19 through a three-way valve 18; the feed pump 19 is connected to a still (not shown); can be outside impurity discharge through exhaust valve and ooff valve to wash whole processing apparatus through the water supply pipe network.
Wherein, a one-way valve 20 is arranged between the three-way valve 18 and the material lifting pump 19; one end of the filter pressing plate 3 close to the sealing end is provided with a flexible surface layer 21; the power telescopic mechanism 8 is a hydraulic cylinder or an electric ball screw.
The above-mentioned embodiment is only the preferred embodiment of the present invention, so all the equivalent changes or modifications made by the structure, features and principles of the present invention are included in the claims of the present invention.
Claims (4)
1. A sevoflurane crude product stoste processing apparatus which characterized in that: the device comprises a pressure filter cylinder, wherein a sealing end head is arranged at one end of the pressure filter cylinder; the other end of the filter pressing cylinder is provided with a filter pressing plate; a filter pressing screen is arranged at the bottom of one end, close to the sealing end, of the filter pressing cylinder; the middle part of the filter pressing cylinder is provided with a waste discharge flange; the waste discharge flange is provided with a switch valve; a pressure filter rod is fixed at one end of the outer part of the pressure filter cylinder, which is far away from the sealing end; the filter pressing rod movably extends into the filter pressing cylinder and is fixed with the filter pressing plate; the filter pressing rod is driven by a power telescopic mechanism; the top of the filter pressing cylinder is provided with a feeding flange opposite to the filter pressing screen; the feeding flange is connected with the primary filter cylinder at the upper position through a feeding valve; an electric stirring mechanism is arranged on the primary filter cylinder; a waste discharge valve is arranged on the side of the primary filter cylinder; a liquid inlet flange is arranged at the upper part of the primary filter cylinder; a primary filter screen is arranged at the bottom of the primary filter cylinder; a water supply pipe network is also arranged at the top of the primary filter cylinder; a liquid discharge hopper is arranged at the position, right opposite to the filter pressing screen, outside the filter pressing cylinder; the bottom of the liquid discharge hopper is connected to the storage hopper; the bottom of the storage hopper is respectively connected to the stock solution receiving barrel and the material lifting pump through a three-way valve; the stripping pump is connected to the still.
2. The device for treating crude sevoflurane stock solution according to claim 1, wherein: and a one-way valve is arranged between the three-way valve and the material lifting pump.
3. The device for treating crude sevoflurane stock solution according to claim 1, wherein: and a flexible surface layer is arranged at one end of the filter pressing plate close to the sealing end.
4. The device for treating crude sevoflurane stock solution according to claim 1, wherein: the power telescopic mechanism is a hydraulic cylinder or an electric ball screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922192740.0U CN211585573U (en) | 2019-12-10 | 2019-12-10 | Sevoflurane crude stock solution processing apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922192740.0U CN211585573U (en) | 2019-12-10 | 2019-12-10 | Sevoflurane crude stock solution processing apparatus |
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| CN211585573U true CN211585573U (en) | 2020-09-29 |
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| CN201922192740.0U Active CN211585573U (en) | 2019-12-10 | 2019-12-10 | Sevoflurane crude stock solution processing apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115180756A (en) * | 2022-06-10 | 2022-10-14 | 武汉北湖云峰环保科技有限公司 | Acetonitrile waste liquid purification and recovery device and method |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115180756A (en) * | 2022-06-10 | 2022-10-14 | 武汉北湖云峰环保科技有限公司 | Acetonitrile waste liquid purification and recovery device and method |
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