Medical intermediate filter

Abstract

The utility model relates to a medical intermediate filter, which belongs to the technical field of filters and comprises a distillation filtering tank, a cover plate is arranged at the top of the distillation filtering tank, an annular round block is fixedly connected to the top of the outer surface of the distillation filtering tank, and a round insertion hole is formed in the inner wall of the annular round block. A threaded insertion rod is detachably inserted into the inner wall of the cover plate, the bottom end of the threaded insertion rod is in threaded connection with a fixing nut, and a steam outlet pipe is fixedly installed at the top of the outer surface of the cover plate. By arranging a filtering and cleaning structure, under the action of an annular circular filter plate, large-particle impurities mingled in vaporized liquid in the distillation and filtering process can be filtered, the impurities are further prevented from influencing the purity, meanwhile, under the action of a transmission gear and an inner ring gear, a brush plate can be controlled from the outside to rotate, and the purity of the vaporized liquid is improved. Furthermore, impurities filtered on the annular circular filter plate can be swept away, and the situation that the distillation efficiency is reduced due to the fact that holes of the annular circular filter plate are blocked is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to a pharmaceutical intermediate filter. Background Art

[0002] 8-Chlorooctanoic acid ethyl ester is a key intermediate for the synthesis of drug excipients SNAC and oral semaglutide (GLP-1R). GLP-1RA is currently the most advanced hypoglycemic drug. In the preparation process of 8-chlorooctanoic acid ethyl ester, it needs to be distilled, filtered and purified, and a filter is needed for auxiliary operation.

[0003] 8-chlorooctanoic acid ethyl ester pharmaceutical intermediates need to be purified by distillation and filtration equipment. During the distillation and filtration process, a catalyst needs to be added to assist the reaction. The vaporized 8-chlorooctanoic acid ethyl ester after distillation may contain catalysts or other particulate impurities, which will affect the overall purity of 8-chlorooctanoic acid ethyl ester. The gas vaporized at high temperature for a long time will increase the temperature of the steam pipe, thereby lengthening the condensation length, thereby affecting the actual condensation efficiency, which is very inconvenient.

[0004] In order to solve the above problems, this application proposes a pharmaceutical intermediate filter. Utility Model Content

[0005] The utility model aims at the technical problems existing in the prior art and provides a medicine intermediate filter.

[0006] The utility model solves the above-mentioned technical problem with the following technical solutions: A pharmaceutical intermediate filter comprises a distillation filter tank, a cover plate is arranged on the top of the distillation filter tank, an annular round block is fixedly connected to the top of the outer surface of the distillation filter tank, a circular plug hole is opened on the inner wall of the annular round block, a threaded plug rod is detachably inserted into the inner wall of the cover plate, a fixing nut is threadedly connected to the bottom end of the threaded plug rod, a steam outlet pipe is fixedly installed on the top of the outer surface of the cover plate, a filtering and cleaning structure is arranged on the bottom of the cover plate and the inner wall of the distillation filter tank, a condensation collection structure is arranged on one end of the steam outlet tank, a sealing ring block is fixedly connected to the bottom of the outer surface of the cover plate, the filtering and cleaning structure comprises four connecting round rods, the four connecting round rods are equidistantly fixed to the bottom of the cover plate, an annular circular filter plate is fixedly connected to the bottom end of the connecting round rod, an annular clamping block is fixedly connected to the bottom of the outer surface of the annular circular filter plate, an annular clamping frame is fixedly connected to the inner wall of the distillation filter tank, and the annular clamping block is detachably clamped to the inner wall of the annular clamping frame.

[0007] Preferably, an annular sliding groove is provided on the inner wall of the annular circular filter plate, and a smooth rod is slidably connected to the inner wall of the annular sliding groove.

[0008] By providing an annular sliding groove and a smooth rod, sliding on the inner wall of the annular filter plate is achieved, thereby cooperating with other components such as a cleaning component to achieve an auxiliary cleaning effect.

[0009] Preferably, one end of the smooth rod is fixedly connected to an inner ring gear, and the top of the outer surface of the inner ring gear is fixedly connected to a brush plate.

[0010] By providing the inner ring gear and the brush plate, the inner ring gear can be driven to rotate and clean when it slides under the action of the smooth rod.

[0011] Preferably, the inner wall of the cover plate is rotatably connected to an auxiliary rotating rod, the outer surface of the auxiliary rotating rod is rotatably connected to the inner wall of the annular circular filter plate, the bottom end of the auxiliary rotating rod is fixedly connected to a transmission gear, and the outer surface of the transmission gear is meshingly connected to the inner ring gear.

[0012] By arranging the auxiliary rotating rod and the transmission gear, the transmission gear can drive the inner ring gear to rotate, thereby driving the brush plate to clean.

[0013] Preferably, the condensation collection structure includes a condenser, which is fixedly connected to the steam outlet pipe via a flange, and the bottom of the condenser is connected to a liquid guide pipe, which consists of three branch pipes in a "mountain" shape.

[0014] By providing a liquid guide tube, the vaporized liquid at multiple locations inside the condenser can be collected and finally gathered at one place for auxiliary collection.

[0015] Preferably, the outer surface of the condenser is fixedly connected to a fixing ring, the top of the outer surface of the fixing ring is fixedly connected to an L-shaped rod, one end of the L-shaped rod is fixedly connected to a mounting plate, a driving motor is fixedly installed on the top of the outer surface of the mounting plate, the output end of the driving motor is fixedly connected to an active rod, the outer surface of the active rod is fixedly connected to a driving wheel, the bottom of the mounting plate is rotatably connected to a driven rod, the bottom end of the driven rod is fixedly connected to a driven wheel, a transmission belt is rotatably connected between the driving wheel and the driven wheel, the bottom of the outer surface of the driving wheel is fixedly connected to an active fan blade body, and the bottom of the outer surface of the driven wheel is fixedly connected to a driven fan blade body.

[0016] By arranging an active rod, an active wheel, a driven rod and a driven wheel, the active fan blade body and the driven fan blade body can be driven to rotate by a transmission belt, thereby auxiliary cooling of the condenser tube can be performed.

[0017] The beneficial effects of the utility model are:

[0018] By setting up a filtering and cleaning structure, under the action of the annular circular filter plate, large particles of impurities mixed in the vaporized liquid during the distillation and filtration process can be filtered out, thereby preventing the impurities from affecting the purity. At the same time, under the action of the transmission gear and the inner ring gear, the brush plate can be controlled to rotate from the outside, thereby cleaning up the impurities filtered on the annular circular filter plate, thereby preventing the holes of the annular circular filter plate from being blocked and causing a decrease in the distillation efficiency.

[0019] By setting up a condensation collection structure, the vaporized liquid can be quickly cooled under the action of the condenser and quickly collected under the action of the liquid guide tube. The active fan blade body and the driven fan blade body can always keep the temperature of the condenser at a low state, thereby avoiding the influence of high temperature on the cooling process and improving the condensation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the annular circular filter plate and its related parts of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the distillation filter tank and its related parts of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the condenser tube and its related parts of the utility model.

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] 1. Distillation filter tank; 2. Cover plate; 3. Steam outlet pipe; 4. Annular block; 5. Circular jack; 6. Threaded rod; 7. Fixing nut; 8. Filter cleaning structure; 81. Connecting rod; 82. Annular filter plate; 83. Annular block; 84. Annular slide; 85. Smooth rod; 86. Inner ring gear; 87. Brush plate; 88. Transmission gear; 89. Auxiliary rotating rod; 810. Annular clamping frame; 9. Condensate collection structure; 91. Condensate pipe; 92. Liquid guide tube; 93. Fixed ring; 94. L-shaped rod; 95. Mounting plate; 96. Driving motor; 97. Active rod; 98. Driven rod; 99. Active wheel; 910. Driven wheel; 911. Transmission belt; 912. Active fan blade body; 913. Driven fan blade body; 10. Sealing ring block. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0027] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means two or more, unless otherwise clearly and specifically defined.

[0028] In the description of the present application, the term "for example" is used to mean "used as an example, illustration or description". Any embodiment described as "for example" in the present application is not necessarily to be construed as being more preferred or advantageous than other embodiments. In order to enable any technician in the field to implement and use the utility model, the following description is given. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the utility model can be implemented without using these specific details. In other examples, well-known structures and processes will not be elaborated in detail to avoid unnecessary details that make the description of the utility model obscure. Therefore, the utility model is not intended to be limited to the embodiments shown, but is consistent with the widest range of principles and features disclosed in the present application.

[0029] Reference Figure 1-3A pharmaceutical intermediate filter comprises a distillation filter tank 1, a cover plate 2 is arranged on the top of the distillation filter tank 1, and the distillation filter tank 1 can be sealed by arranging the cover plate 2, an annular block 4 is fixedly connected to the top of the outer surface of the distillation filter tank 1, a circular plug hole 5 is opened on the inner wall of the annular block 4, a threaded plug rod 6 is detachably inserted into the inner wall of the cover plate 2, and the cover plate 2 and the distillation filter tank 1 can be disassembled and assembled by arranging the circular plug hole 5 and the threaded plug rod 6, and the bottom end of the threaded plug rod 6 is threadedly connected with a fixing nut 7, a steam outlet pipe 3 is fixedly installed on the top of the outer surface of the cover plate 2, and the vaporized liquid can be transported by arranging the steam outlet pipe 3, a filtering and cleaning structure 8 is arranged on the bottom of the cover plate 2 and the inner wall of the distillation filter tank 1, and a condensing The collecting structure 9 has a sealing ring block 10 fixedly connected to the bottom of the outer surface of the cover plate 2. By setting the sealing ring block 10, the cover plate 2 can be sealed. The filtering and cleaning structure 8 includes four connecting rods 81. The four connecting rods 81 are equidistantly fixed on the bottom of the cover plate 2. The bottom ends of the connecting rods 81 are fixedly connected to an annular circular filter plate 82. By setting the annular circular filter plate 82, impurities in the vaporized liquid can be filtered. The bottom of the outer surface of the annular circular filter plate 82 is fixedly connected to an annular clamping block 83. The inner wall of the distillation filtering tank 1 is fixedly connected to an annular clamping frame 810. The annular clamping block 83 is detachably clamped to the inner wall of the annular clamping frame 810. By setting the annular clamping block 83 and the annular clamping frame 810, the bottom of the annular circular filter plate 82 can be sealed.

[0030] Reference Figure 2 The inner wall of the annular filter plate 82 is provided with an annular groove 84, and the inner wall of the annular groove 84 is slidably connected with a smooth rod 85. By providing the annular groove 84 and the smooth rod 85, other components can be cooperated to slide on the inner wall of the annular filter plate 82.

[0031] Reference Figure 2 One end of the smooth rod 85 is fixedly connected to an inner ring gear 86 , and a brush plate 87 is fixedly connected to the top of the outer surface of the inner ring gear 86 .

[0032] Reference Figure 2 The inner wall of the cover plate 2 is rotatably connected with an auxiliary rotating rod 89, and the outer surface of the auxiliary rotating rod 89 is rotatably connected with the inner wall of the annular filter plate 82. The bottom end of the auxiliary rotating rod 89 is fixedly connected with a transmission gear 88. By setting the transmission gear 88, the transmission gear 88 can be operated externally in conjunction with the auxiliary rotating rod 89, and the outer surface of the transmission gear 88 is meshedly connected with the inner ring gear 86.

[0033] Reference Figure 1 and Figure 4The condensation collection structure 9 includes a condenser 91, which is fixedly connected to the steam outlet pipe 3 via a flange. By setting the condenser 91, the vaporized liquid can be condensed. The bottom of the condenser 91 is connected to a liquid guide pipe 92, which consists of three branch pipes in the shape of a "mountain". By setting the liquid guide pipe 92, the vaporized liquid on the inner wall of the condenser 91 can be collected.

[0034] Reference Figure 4 The outer surface of the condenser 91 is fixedly connected with a fixed ring 93, the outer surface top of the fixed ring 93 is fixedly connected with an L-shaped rod 94, one end of the L-shaped rod 94 is fixedly connected with a mounting plate 95, the outer surface top of the mounting plate 95 is fixedly installed with a driving motor 96, the output end of the driving motor 96 is fixedly connected with an active rod 97, by setting the driving motor 96, the active rod 97 can be rotated to drive other components to function, the outer surface of the active rod 97 is fixedly connected with a driving wheel 99, and the bottom of the mounting plate 95 is rotatably connected with a driven rod 98. The bottom end of the driven rod 98 is fixedly connected to a driven wheel 910, and a transmission belt 911 is rotatably connected between the driving wheel 99 and the driven wheel 910. By arranging the driven rod 98 and the driven wheel 910, the driving wheel 99 and the driving rod 97 can be rotated, and then they can cooperate with other components to function. The bottom of the outer surface of the driving wheel 99 is fixedly connected to an active fan blade body 912, and the bottom of the outer surface of the driven wheel 910 is fixedly connected to a driven fan blade body 913. By arranging the active fan blade body 912 and the driven fan blade body 913, the condenser 91 can be auxiliary cooled.

[0035] Working principle:

[0036] When in use, the cover plate 2 is fixed to the top of the distillation filter tank 1, so that the annular clamping block 83 can be fixed to the annular clamping frame 810. At this time, heating and distillation are performed inside the distillation filter tank 1, so that the vaporized liquid can be filtered through the annular circular filter plate 82 and then flow to the steam outlet pipe. At this time, the auxiliary rotating rod 89 is rotated to drive the transmission gear 88 to rotate, and then the inner ring gear 86 can be driven to rotate, and then the smooth rod 85 can be driven to slide on the inner wall of the annular slide groove 84, and then the brush plate 87 can be driven to rotate. , and then the annular circular filter plate 82 can be cleaned. At this time, the steam outlet pipe 3 can guide the vaporized liquid to the inner wall of the condenser 91, and then the condensed liquid can be collected from the inner wall of the liquid guide tube 92. At this time, the drive motor 96 is started, which can drive the active rod 97 to rotate, and then drive the active wheel 99 to rotate, and then drive the transmission belt 911 to rotate, and then drive the driven wheel 910 and the driven rod 98 to rotate, and then drive the active fan blade body 912 and the driven fan blade body 913 to rotate, so as to cool the condenser 91.

[0037] Although the preferred embodiments of the utility model have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the utility model.

[0038] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A pharmaceutical intermediate filter, comprising a distillation filter tank (1), characterized in that: The top of the distillation and filtering tank (1) is provided with a cover plate (2), the top of the outer surface of the distillation and filtering tank (1) is fixedly connected with an annular block (4), the inner wall of the annular block (4) is provided with a circular plug hole (5), the inner wall of the cover plate (2) is detachably provided with a threaded plug rod (6), the bottom end of the threaded plug rod (6) is threadedly connected with a fixing nut (7), the top of the outer surface of the cover plate (2) is fixedly installed with a steam outlet pipe (3), the bottom of the cover plate (2) and the inner wall of the distillation and filtering tank (1) are provided with a filtering and cleaning structure (8), and one end of the steam outlet pipe (3) is provided with a condensation collecting nut (7). Structure (9), the bottom of the outer surface of the cover plate (2) is fixedly connected to a sealing ring block (10), the filtering and cleaning structure (8) comprises four connecting round rods (81), the four connecting round rods (81) are equidistantly fixed to the bottom of the cover plate (2), the bottom ends of the connecting round rods (81) are fixedly connected to an annular circular filter plate (82), the bottom of the outer surface of the annular circular filter plate (82) is fixedly connected to an annular clamping block (83), the inner wall of the distillation filtering tank (1) is fixedly connected to an annular clamping frame (810), and the annular clamping block (83) is detachably clamped to the inner wall of the annular clamping frame (810).

2. A pharmaceutical intermediate filter according to claim 1, characterized in that: An annular sliding groove (84) is provided on the inner wall of the annular filter plate (82), and a smooth rod (85) is slidably connected to the inner wall of the annular sliding groove (84).

3. A pharmaceutical intermediate filter according to claim 2, characterized in that: One end of the smooth rod (85) is fixedly connected to an inner ring gear (86), and the top of the outer surface of the inner ring gear (86) is fixedly connected to a brush plate (87).

4. A pharmaceutical intermediate filter according to claim 3, characterized in that: The inner wall of the cover plate (2) is rotatably connected to an auxiliary rotating rod (89), the outer surface of the auxiliary rotating rod (89) is rotatably connected to the inner wall of the annular filter plate (82), the bottom end of the auxiliary rotating rod (89) is fixedly connected to a transmission gear (88), and the outer surface of the transmission gear (88) is meshingly connected to the inner ring gear (86).

5. A pharmaceutical intermediate filter according to claim 1, characterized in that: The condensation collection structure (9) comprises a condensation pipe (91), the condensation pipe (91) is fixedly connected to the steam outlet pipe (3) via a flange, the bottom of the condensation pipe (91) is connected to a liquid guide pipe (92), and the liquid guide pipe (92) is composed of three branch pipes in the shape of a "mountain".

6. A pharmaceutical intermediate filter according to claim 5, characterized in that: The outer surface of the condenser (91) is fixedly connected to a fixed ring (93), the top of the outer surface of the fixed ring (93) is fixedly connected to an L-shaped rod (94), one end of the L-shaped rod (94) is fixedly connected to a mounting plate (95), the top of the outer surface of the mounting plate (95) is fixedly mounted with a driving motor (96), the output end of the driving motor (96) is fixedly connected to an active rod (97), the outer surface of the active rod (97) is fixedly connected to a driving wheel (99), the bottom of the mounting plate (95) is rotatably connected to a driven rod (98), the bottom end of the driven rod (98) is fixedly connected to a driven wheel (910), a transmission belt (911) is rotatably connected between the driving wheel (99) and the driven wheel (910), the bottom of the outer surface of the driving wheel (99) is fixedly connected to an active fan blade body (912), and the bottom of the outer surface of the driven wheel (910) is fixedly connected to a driven fan blade body (913).

Images