Medical intermediate distillation separation tower structure

Abstract

The utility model provides a medical intermediate distillation separation tower structure which comprises a distillation tower body, one side of the outer wall of the distillation tower body is fixedly connected with a light component outlet, a feed inlet and a heavy component outlet, the feed inlet is located at the upper end of the heavy component outlet, the light component outlet is located at the upper end of the feed inlet, and the heavy component outlet is located at the lower end of the feed inlet. A feeding hole is formed in the distillation tower body, a filtering mechanism is positioned and mounted on the inner wall of the feeding hole, a condenser is fixedly connected to the upper end of the distillation tower body, a first transmission connecting pipe is fixedly connected to the upper end of the condenser, and a return tank is fixedly connected to the other end of the first transmission connecting pipe. According to the distillation separation tower, impurities and insoluble particles in raw materials can be removed through the arranged filtering mechanism, and the purity of the materials entering the distillation separation tower is ensured, so that the purity of a final product is improved, meanwhile, the impurities can be effectively intercepted, the blockage phenomenon is prevented, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pharmaceutical intermediate distillation and separation towers, and particularly relates to a pharmaceutical intermediate distillation and separation tower structure. Background Art

[0002] The pharmaceutical intermediate distillation separation tower is a device specifically used for the separation and purification of pharmaceutical intermediates. Through distillation technology, the tower utilizes the boiling point differences of the components in the mixture to achieve efficient separation and purification of the target product. The pharmaceutical intermediate distillation separation tower is widely used in the pharmaceutical industry to separate and purify various pharmaceutical intermediates. It is an indispensable equipment in the pharmaceutical industry. Through efficient separation and purification technology, it ensures the quality and efficiency of the drug synthesis process.

[0003] Common pharmaceutical intermediate distillation and separation towers are typically not equipped with separate filtration devices. Impurities can cause wear and tear on the distillation equipment, leading to unstable operation or even damage. The presence of impurities can also interfere with heat and mass transfer, reducing distillation efficiency and negatively impacting user experience. To address this issue, we propose a novel pharmaceutical intermediate distillation and separation tower structure. Utility Model Content

[0004] Technical Problem Solved: In response to the shortcomings of the existing technology, the utility model provides a pharmaceutical intermediate distillation separation tower structure that can remove impurities and insoluble particles from the raw materials, ensuring the purity of the materials entering the distillation separation tower, thereby improving the purity of the final product. At the same time, it can effectively intercept impurities and prevent clogging, thereby improving production efficiency and effectively solving the problems in the background technology. To achieve the above objectives, the technical solutions adopted by the utility model are as follows:

[0005] A pharmaceutical intermediate distillation and separation tower structure comprises a distillation tower body, wherein a light component outlet, a feed port and a heavy component outlet are fixedly connected to one side of the outer wall of the distillation tower body, the feed port is located above the heavy component outlet, the light component outlet is located above the feed port, a filtering mechanism is positioned and installed on the inner wall of the feed port, the upper end of the distillation tower body is fixedly connected to a condenser, the upper end of the condenser is fixedly connected to a No. 1 transmission connecting pipe, the other end of the No. 1 transmission connecting pipe is fixedly connected to a reflux tank, and a reflux transmission pipe is fixedly connected between the distillation tower body and the reflux tank.

[0006] As a preferred embodiment of this embodiment, the lower end of the distillation tower body is fixedly connected to a polyvinylidene fluoride filter element, one end of the polyvinylidene fluoride filter element is fixedly connected to a reboiler heater, and a No. 2 transmission connecting pipe is fixedly connected between the distillation tower body and the reboiler heater.

[0007] As a preference of this embodiment, one end of the feed inlet, the heavy component outlet and the light component outlet all pass through the inner wall of the distillation tower body and are fixed, and the two ends of the No. 1 transmission connecting pipe are respectively connected to the condenser and the reflux tank.

[0008] As a preference of this embodiment, one end of the reflux transmission pipe is embedded in the lower end of the outer wall of the reflux tank and fixed, and the other end of the reflux transmission pipe is embedded in the inner wall of the distillation tower body and fixed.

[0009] As a preference of this embodiment, both ends of the No. 2 transmission connecting pipe are fixedly connected to the distillation tower body and the reboiler heater respectively, and both ends of the No. 3 transmission connecting pipe are fixedly connected to the distillation tower body and the bottom of the reboiler heater respectively.

[0010] As a preferred embodiment of this invention, the filtering mechanism includes an outer positioning frame of the filter, a feed connecting pipe, an inner positioning thread, a filter cartridge, an outer positioning thread, an upper limit ring block, an inner anti-slip sealing pad, an upper sealing connection cover, a stainless steel filter element, a glass fiber filter element and a polyvinylidene fluoride filter element, and the feed connecting pipe is located at the bottom of the outer positioning frame of the filter.

[0011] As a preferred embodiment of this invention, the inner positioning thread is opened at the upper end of the inner wall of the outer positioning frame of the filter, the filter cartridge is located inside the outer positioning frame of the filter, the outer positioning thread is opened at the upper end of the outer wall of the filter cartridge, the upper limit ring block is located on the outer wall of the filter cartridge, and the inner anti-slip sealing pad is located at the upper end of the inner wall of the filter cartridge.

[0012] As a preferred embodiment of this embodiment, the upper sealing connection cover is located at the upper end of the inner wall of the filter cartridge, the stainless steel filter element, the glass fiber filter element and the polyvinylidene fluoride filter element are all located inside the filter cartridge, the glass fiber filter element is located at the upper end of the stainless steel filter element, and the polyvinylidene fluoride filter element is located at the upper end of the glass fiber filter element.

[0013] As a preference of this embodiment, one end of the feed connecting pipe is fixedly connected to the lower end of the filter outer positioning frame, the other end of the feed connecting pipe is fixedly connected to one end of the feed port, and the inner wall of the upper limit ring block is fixedly connected to the upper outer wall of the filter cylinder.

[0014] As a preferred embodiment of this invention, the filter cartridge is positioned between the filter outer positioning frame by means of an external positioning thread and an internal positioning thread, the upper sealing connection cover is positioned with the filter cartridge by means of an internal anti-slip sealing pad and bolts, and the stainless steel filter element, glass fiber filter element and polyvinylidene fluoride filter element are all integrally formed with the filter cartridge.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The utility model sets up a filtering mechanism, and the outer positioning frame of the filter is connected to the feed port through the feed connecting pipe. The filter cartridge is sleeved on the inner wall of the outer positioning frame of the filter and is positioned between the outer positioning thread and the inner positioning thread. The upper limit ring block plays a limiting role at the upper end of the filter cartridge, and the upper sealing connection cover is positioned on the inner wall of the upper end of the filter cartridge through the inner anti-slip sealing pad. The inner wall of the filter cartridge has a stainless steel filter element, a glass fiber filter element and a polyvinylidene fluoride filter element to enhance the filtering effect, remove impurities and insoluble particles in the raw materials, ensure the purity of the materials entering the distillation separation tower, thereby improving the purity of the final product. At the same time, it can effectively intercept impurities and prevent the occurrence of blockage, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 This is a schematic diagram of the disassembly of the outer positioning frame and the upper sealing connection cover of the filter of the present invention.

[0019] Figure 3 This is a partial structural decomposition diagram of the filter mechanism of the present invention.

[0020] Figure 4 This is an internal cross-sectional view of the filter cartridge of the present invention.

[0021] As shown in the figure: 1. Distillation tower body; 2. Feed inlet; 3. Filter mechanism; 4. Heavy component outlet; 5. Light component outlet; 6. Condenser; 7. No. 1 transmission connecting pipe; 8. Reflux tank; 9. Reflux transmission pipe; 10. No. 2 transmission connecting pipe; 11. No. 3 transmission connecting pipe; 12. Reboiler; 301. Filter external positioning frame; 302. Feed connecting pipe; 303. Internal positioning thread; 304. Filter cartridge; 305. External positioning thread; 306. Upper limit ring block; 307. Internal anti-slip sealing pad; 308. Upper sealing connection cover; 309. Stainless steel filter element; 310. Glass fiber filter element; 311. Polyvinylidene fluoride filter element. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] It should be noted that, in this article, relational terms such as first and second (number one, number two), etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements that are not explicitly listed, or also includes elements that are inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including a..." do not exclude the presence of other identical elements in the process, method, article or device that includes the elements.

[0024] See also Figures 1 to 4 As shown, the embodiment of the present invention provides a pharmaceutical intermediate distillation separation tower structure, which specifically includes a distillation tower body 1, a light component outlet 5, a feed port 2 and a heavy component outlet 4 are fixedly connected to one side of the outer wall of the distillation tower body 1, the feed port 2 is located at the upper end of the heavy component outlet 4, the light component outlet 5 is located at the upper end of the feed port 2, and a filtering mechanism 3 is positioned and installed on the inner wall of the feed port 2, the upper end of the distillation tower body 1 is fixedly connected to a condenser 6, the upper end of the condenser 6 is fixedly connected to a No. 1 transmission connecting pipe 7, the other end of the No. 1 transmission connecting pipe 7 is fixedly connected to a reflux tank 8, a reflux transmission pipe 9 is fixedly connected between the distillation tower body 1 and the reflux tank 8, the lower end of the distillation tower body 1 is fixedly connected to a polyvinylidene fluoride filter element 311, and one end of the polyvinylidene fluoride filter element 311 is fixedly connected to a reboiler Heater 12, a No. 2 transmission connecting pipe 10 is fixedly connected between the distillation tower body 1 and the reboiling heater 12 to enhance firmness. The reboiling heater 12 is used to heat and partially vaporize the bottom liquid of the tower. The feed inlet 2, one end of the heavy component outlet 4 and the light component outlet 5 all pass through the inner wall of the distillation tower body 1 and are fixed. The two ends of the No. 1 transmission connecting pipe 7 are respectively connected to the condenser 6 and the reflux tank 8. One end of the reflux transmission pipe 9 is embedded in the lower end of the outer wall of the reflux tank 8 and is fixed. The other end of the reflux transmission pipe 9 is embedded in the inner wall of the distillation tower body 1 and is fixed. The two ends of the No. 2 transmission connecting pipe 10 are respectively fixedly connected to the distillation tower body 1 and the reboiling heater 12. The two ends of the No. 3 transmission connecting pipe 11 are respectively fixedly connected to the distillation tower body 1 and the bottom of the reboiling heater 12.

[0025] Specifically in this embodiment, when in use, the raw materials enter the interior of the distillation tower body 1 from the feed port 2, and the reboiler heater 12 heats it to boiling, so that the components therein evaporate, and the vapors of different components rise according to their boiling points. The components with lower boiling points evaporate and rise first, and the components with higher boiling points evaporate later. The interior of the distillation tower body 1 has multiple layers of tower plates for increasing the gas-liquid contact area. On the tower plates, the rising steam contacts the descending liquid to transfer heat and mass, and the volatile components with low boiling points in the liquid phase enter the gas phase, and the non-volatile components with high boiling points in the gas phase enter the liquid phase. Phase, the condenser 6 condenses the rising low-boiling point components into liquid and collects them through the heavy component outlet 4 or the light component outlet 5. The heavy components at the bottom of the tower are discharged through the heavy component outlet 4. The middle tower plate realizes multiple separations through multiple partial vaporization and partial condensation to improve the separation efficiency. Part of the condensate is returned to the tower as reflux liquid to help maintain the temperature gradient and mass transfer efficiency in the tower. The liquid at the bottom of the tower is partially vaporized through the reboiler, and the generated steam rises to continue separation. Before the material enters the distillation tower body 1, it can be filtered by the provided filtering mechanism 3.

[0026] See also Figures 2 to 4As shown, the filter mechanism 3 specifically includes a filter outer positioning frame 301, a feed connecting pipe 302, an inner positioning thread 303, a filter cartridge 304, an outer positioning thread 305, an upper limit ring block 306, an inner anti-slip sealing pad 307, an upper sealing connection cover 308, a stainless steel filter element 309, a glass fiber filter element 310 and a polyvinylidene fluoride filter element 311. The feed connecting pipe 302 is located at the bottom of the filter outer positioning frame 301 and is used to connect with the feed port 2. The inner positioning thread 303 is opened on the inner wall of the filter outer positioning frame 301. At the upper end, the filter cartridge 304 is located inside the filter outer positioning frame 301, the external positioning thread 305 is opened at the upper end of the outer wall of the filter cartridge 304, the upper limit ring block 306 is located on the upper outer wall of the filter cartridge 304, the inner anti-slip sealing pad 307 is located at the upper end of the inner wall of the filter cartridge 304, the upper sealing connection cover 308 is located at the upper end of the inner wall of the filter cartridge 304, the stainless steel filter element 309, the glass fiber filter element 310 and the polyvinylidene fluoride filter element 311 are all located inside the filter cartridge 304, the glass fiber filter element 310 is located at the stainless steel filter element 309 The upper end of the polyvinylidene fluoride filter element 311 is located at the upper end of the glass fiber filter element 310. The polyvinylidene fluoride filter element 311 has extremely high filtration accuracy and is suitable for fine filtration. One end of the feed connecting pipe 302 is fixedly connected to the lower end of the filter outer positioning frame 301, and the other end of the feed connecting pipe 302 is fixedly connected to one end of the feed port 2. The inner wall of the upper limit ring block 306 is fixedly connected to the upper outer wall of the filter cartridge 304. The upper limit ring block 306 plays a limiting role to prevent the filter cartridge 304 from being trapped inside the filter outer positioning frame 301. The filter cartridge 304 is positioned between the outer positioning thread 305 and the inner positioning thread 303 and the outer positioning frame 301 of the filter. The upper sealing connection cover 308 is positioned with the filter cartridge 304 through the inner anti-slip sealing pad 307 and bolts. The stainless steel filter element 309, the glass fiber filter element 310 and the polyvinylidene fluoride filter element 311 are all integrally formed with the filter cartridge 304, which can enhance the filtering effect, remove impurities and insoluble particles in the raw materials, ensure the purity of the materials entering the distillation separation tower, and thus improve the purity of the final product.

[0027] Specifically in this embodiment, the filter outer positioning frame 301 is connected to the feed port 2 through the feed connecting pipe 302, the filter cartridge 304 is sleeved on the inner wall of the filter outer positioning frame 301 and is positioned between the external positioning thread 305 and the internal positioning thread 303, the upper limit ring block 306 plays a limiting role at the upper end of the filter cartridge 304, and the upper sealing connection cover 308 is positioned on the inner wall of the upper end of the filter cartridge 304 through the internal anti-slip sealing pad 307 and bolts. The inner wall of the filter cartridge 304 has a stainless steel filter element 309, a glass fiber filter element 310 and a polyvinylidene fluoride filter element 311, which can enhance the filtering effect, remove impurities and insoluble particles in the raw materials, ensure the purity of the material entering the distillation separation tower, thereby improving the purity of the final product, and at the same time, effectively intercept impurities and prevent blockage, thereby improving production efficiency.

[0028] The above shows and describes 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 to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A pharmaceutical intermediate distillation separation tower structure, comprising a distillation tower body (1), characterized in that: A light component outlet (5), a feed port (2) and a heavy component outlet (4) are fixedly connected to one side of the outer wall of the distillation tower body (1); the feed port (2) is located at the upper end of the heavy component outlet (4); the light component outlet (5) is located at the upper end of the feed port (2); a filtering mechanism (3) is positioned and installed on the inner wall of the feed port (2); a condenser (6) is fixedly connected to the upper end of the condenser (6); a No. 1 transmission connecting pipe (7) is fixedly connected to the upper end of the No. 1 transmission connecting pipe (7); a reflux tank (8) is fixedly connected to the other end of the No. 1 transmission connecting pipe (7); and a reflux transmission pipe (9) is fixedly connected between the distillation tower body (1) and the reflux tank (8).

2. The pharmaceutical intermediate distillation separation tower structure according to claim 1, characterized in that: The lower end of the distillation tower body (1) is fixedly connected to a No. 3 transmission connecting pipe (11), one end of the No. 3 transmission connecting pipe (11) is fixedly connected to a reboiler (12), and a No. 2 transmission connecting pipe (10) is fixedly connected between the distillation tower body (1) and the reboiler (12).

3. The pharmaceutical intermediate distillation separation tower structure according to claim 1, characterized in that: One end of the feed inlet (2), the heavy component outlet (4) and the light component outlet (5) all penetrate the inner wall of the distillation tower body (1) and are fixed, and the two ends of the No. 1 transmission connecting pipe (7) are respectively connected to the condenser (6) and the reflux tank (8).

4. The pharmaceutical intermediate distillation separation tower structure according to claim 1, characterized in that: One end of the reflux transmission pipe (9) is embedded in the lower end of the outer wall of the reflux tank (8) and fixed, and the other end of the reflux transmission pipe (9) is embedded in the inner wall of the distillation tower body (1) and fixed.

5. The pharmaceutical intermediate distillation separation tower structure according to claim 2, characterized in that: The two ends of the No. 2 transmission connecting pipe (10) are fixedly connected to the distillation tower body (1) and the reboiler (12), respectively, and the two ends of the No. 3 transmission connecting pipe (11) are fixedly connected to the distillation tower body (1) and the bottom of the reboiler (12), respectively.

6. The pharmaceutical intermediate distillation separation tower structure according to claim 2, characterized in that: The filtering mechanism (3) comprises a filter outer positioning frame (301), a feed connecting pipe (302), an inner positioning thread (303), a filter cartridge (304), an outer positioning thread (305), an upper limit ring block (306), an inner anti-slip sealing pad (307), an upper sealing connection cover (308), a stainless steel filter element (309), a glass fiber filter element (310) and a polyvinylidene fluoride filter element (311), wherein the feed connecting pipe (302) is located at the bottom of the filter outer positioning frame (301).

7. The pharmaceutical intermediate distillation separation tower structure according to claim 6, characterized in that: The inner positioning thread (303) is provided at the upper end of the inner wall of the filter outer positioning frame (301), the filter cartridge (304) is located inside the filter outer positioning frame (301), the outer positioning thread (305) is provided at the upper end of the outer wall of the filter cartridge (304), the upper limit ring block (306) is located on the outer wall of the filter cartridge (304), and the inner anti-slip sealing pad (307) is located at the upper end of the inner wall of the filter cartridge (304).

8. The pharmaceutical intermediate distillation separation tower structure according to claim 6, characterized in that: The upper sealing connection cover (308) is located at the upper end of the inner wall of the filter cartridge (304); the stainless steel filter element (309), the glass fiber filter element (310) and the polyvinylidene fluoride filter element (311) are all located inside the filter cartridge (304); the glass fiber filter element (310) is located at the upper end of the stainless steel filter element (309); and the polyvinylidene fluoride filter element (311) is located at the upper end of the glass fiber filter element (310).

9. The pharmaceutical intermediate distillation separation tower structure according to claim 6, characterized in that: One end of the feed connecting pipe (302) is fixedly connected to the lower end of the filter outer positioning frame (301), the other end of the feed connecting pipe (302) is fixedly connected to one end of the feed port (2), and the inner wall of the upper limit ring block (306) is fixedly connected to the upper outer wall of the filter cylinder (304).

10. The pharmaceutical intermediate distillation separation tower structure according to claim 6, characterized in that: The filter cartridge (304) is positioned with the filter outer positioning frame (301) via an external positioning thread (305) and an internal positioning thread (303); the upper sealing connection cover (308) is positioned with the filter cartridge (304) via an internal anti-slip sealing pad (307) and bolts; the stainless steel filter element (309), the glass fiber filter element (310) and the polyvinylidene fluoride filter element (311) are all integrally formed with the filter cartridge (304).

Images