Centrifugal filter for medicine raw materials

Abstract

The utility model discloses a medicine raw material centrifugal filter which comprises a filter box and a supporting seat, a filter element cylinder is arranged in the filter box, the top of the filter element cylinder is in meshed transmission connection with a driving motor, a plurality of water inlet holes are formed in the surface of the filter element cylinder, and a movable filter cylinder is arranged in a bottom barrel. A detachable inner barrel is arranged in an inner cavity of the filter cartridge, a drainage end is arranged at the bottom of the inner barrel, a downward-concave superfine filter screen is arranged at the bottom of the inner barrel, when the filter cartridge is lifted to the highest position, the top of the filter cartridge is embedded into a notch in the bottom of the filter box for sealed connection and mutual communication, and at the moment, the bottom of the filter cartridge is attached to the inner bottom of the superfine filter screen; by arranging the filter cartridge with the adjustable position, a racemization mixture subjected to centrifugal filtration can be collected into an inner barrel of the filter cartridge, and then the inner barrel is directly lifted through descending of the adjusting seat, so that the racemization mixture can be prevented from remaining on a discharge channel to cause loss of a part of products, reduce the products, reduce the efficiency and affect experimental data.

Description

Technical Field

[0001] The utility model relates to a centrifugal filter for drug raw materials, belonging to the field of centrifugal filters. Background Art

[0002] A filter is a device that uses a porous filter to achieve solid-liquid separation. Filters are applied in departments such as chemical industry, petroleum, pharmaceuticals, light industry, food, ore dressing, coal, and water treatment. A filter is a new type of filtration system with novel structure, small volume, simple and flexible operation, high efficiency, airtight operation, and is a multi-purpose filtration device with strong applicability; Filtration technology has been applied in production in ancient China, and paper made of plant fibers has existed since 200 BC; Centrifugal filtration uses centrifugal force as the driving force. A suspension is added to a perforated drum with a filtering medium (such as a filter screen or filter cloth). Solid particles are retained on the filtering medium, and the liquid passes through the filter cake layer and flows out, finally completing the filtration operation of separating the filtrate and the filter cake.

[0003] When chemically reacting the split (S)-2,6-diamino-4,5,6,7-tetrahydrobenzothiazole mother liquor to obtain an enantiomeric mixture enriched in the (R) configuration of 2,6-diamino-4,5,6,7-tetrahydrobenzothiazole and then performing centrifugal filtration, after the filtration is completed in the current centrifugal filtration equipment, when discharging the filtered enantiomeric mixture outward, a large amount of the enantiomeric mixture is likely to remain on the discharge pipeline, resulting in the loss of a part of the product, thus reducing the amount of the product and the efficiency, and affecting the experimental data. Summary of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a centrifugal filter for drug raw materials to solve the problem that after the centrifugal filtration equipment completes filtration and discharges the filtered enantiomeric mixture outward, a large amount of the enantiomeric mixture is likely to remain on the discharge pipeline, resulting in the loss of a part of the product, thus reducing the amount of the product and the efficiency, and affecting the experimental data.

[0005] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a centrifugal filter for pharmaceutical raw materials, including a filter box and a support seat, the filter box is installed above the support seat, a drive motor is installed on the top of the filter box and a feed port is arranged on the side, a filter cartridge is arranged inside the filter box, the top of the filter cartridge is meshed and connected with the drive motor and a plurality of water inlet holes are arranged on the surface, a hollow bottom barrel is installed at the bottom of the filter box, position adjustment seats are arranged on both sides of the middle of the support seat, a movable filter cartridge is arranged inside the bottom barrel, and a removable filter cartridge is arranged in the inner cavity of the filter cartridge The inner barrel has a drainage end at the bottom, and a downwardly recessed ultrafine filter is provided at the bottom of the inner barrel. The two sides of the filter cartridge are connected to the position adjustment seat through connecting rods. When the filter cartridge is raised to the highest point, the top is embedded in the groove at the bottom of the filter box for sealing connection and mutual communication, and at this time, the bottom of the filter element cartridge fits with the inner bottom of the ultrafine filter screen; the above can make the product after centrifugal filtration collected in the inner barrel in the filter cartridge, and then the filter cartridge is lowered by the adjusting seat, and the inner barrel is lifted, which can prevent the racemic mixture from remaining in the discharge channel, causing part of the product to be lost, resulting in less product, lower efficiency, and affecting the experimental data.

[0006] Furthermore, a connecting seat is provided at the bottom of the feeding barrel; the connecting seat can be used for connection with the filter cartridge.

[0007] Furthermore, a raised connector that matches the connection seat is provided on the top of the filter cartridge, and when the filter cartridge is raised to the highest point, the raised connector is embedded in the connection seat for fitting; the above-mentioned raised connector is embedded in the connection seat, which is beneficial to the sealing effect.

[0008] Furthermore, a sealing ring is arranged on the outer side of the raised connector; the sealing ring can achieve a sealing effect to prevent the mother liquid from flowing out.

[0009] Furthermore, the inner barrel is embedded in the filter cartridge from top to bottom and placed on the placement block on the surface wall of the filter cartridge. At this time, there is a certain space between the inner barrel and the bottom of the filter cartridge; the above can make the filtered liquid discharge from the ultrafine filter mesh at the bottom of the inner barrel into the bottom of the filter cartridge, and then discharge to a suitable position through the drainage end connecting pipe at the bottom of the filter cartridge, so as to facilitate the collection of the filtered liquid.

[0010] Furthermore, a feed bucket is installed on the top of the filter box; other reactants or materials can be added as needed during the filtration process.

[0011] Furthermore, the position adjustment seat includes a motor, a lead screw, and a limit rod. The motor is meshed and connected to the bottom of the lead screw. A threaded seat is threadedly connected to the surface of the lead screw. A sliding sleeve is sleeved on the surface of the lead screw and is fixedly connected to the threaded seat through the side of a connecting rod. The front of the sliding sleeve is fixedly connected to the side of the filter cartridge through the connecting rod. The above structure drives the lead screw to rotate through the motor, thereby driving the threaded seat threadedly connected thereto to move up or down following the forward or reverse rotation of the motor, thereby driving the sliding sleeve to move up or down, and finally realizing the up and down movement of the filter cartridge.

[0012] Furthermore, the top of the lead screw and the limit rod are arranged at the top of the bottom barrel; when the filter cartridge is adjusted upward, when the filter cartridge rises to the highest position, the convex connecting head can be embedded into the connecting seat for fitting.

[0013] Beneficial effects

[0014] The centrifugal filter for a drug raw material of the present utility model:

[0015] 1. It is provided with a filter cartridge with adjustable position, which can collect the racemic mixture after centrifugal filtration into the inner barrel of the filter cartridge, and then directly lift the inner barrel by lowering the adjustment seat, which can prevent the racemic mixture from remaining on the discharge channel, resulting in the loss of a part of the product, reducing the amount of the product and the efficiency, and affecting the experimental data.

[0016] 2. A feeding barrel is installed at the top of the filter box, and the required reactants can be added during the filtration process, which is simple and convenient. Description of the drawings

[0017] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, purposes and advantages of the present utility model will become more obvious:

[0018] Figure 1 It is a schematic diagram of the main structure of the filter box of the centrifugal filter for a drug raw material of the present utility model;

[0019] Figure 2 It is a schematic diagram of the main structure of the filter box of the centrifugal filter for a drug raw material of the present utility model;

[0020] Figure 3 It is a schematic diagram of the internal structure of the filter box of the centrifugal filter for a drug raw material of the present utility model;

[0021] Figure 4 It is a schematic diagram of the filter cartridge structure of the centrifugal filter for a drug raw material of the present utility model;

[0022] Figure 5 It is a schematic diagram of the inner barrel structure of the centrifugal filter for a drug raw material of the present utility model;

[0023] Figure 6Schematic diagram of the internal structure of the filter cylinder of a centrifugal filter for a drug raw material of the present utility model;

[0024] Figure 7 Schematic diagram of the adjusting seat structure of a centrifugal filter for a drug raw material of the present utility model.

[0025] In the figure: filter box - 1, support seat - 2, feeding barrel - 11, feeding port - 12, driving motor - 13, filter cylinder - 14, filter element cylinder - 15, connecting seat - 16, bottom barrel - 17, adjusting seat - 21, inner barrel - 141, sealing ring - 142, drainage end - 143, convex connecting head - 144, water inlet hole - 151, motor - 211, lead screw - 212, limit rod - 213, threaded seat - 214, sliding sleeve - 215, ultra - fine filter screen - 1411. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation to the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] Embodiment 1

[0028] As Figure 1-7As shown, a centrifugal filter for pharmaceutical raw materials includes a filter box 1 and a support seat 2, the filter box 1 is installed above the support seat 2, a drive motor 13 is installed on the top of the filter box 1 and a feed port 12 is arranged on the side, a filter cartridge 15 is arranged inside the filter box 1, the top of the filter cartridge 15 is meshed and transmission-connected with the drive motor 13 and a plurality of water inlet holes 151 are arranged on the surface, a hollow bottom barrel 17 is installed at the bottom of the filter box 1, position adjustment seats 21 are arranged on both sides of the middle part of the support seat 2, a movable filter cartridge 14 is arranged inside the bottom barrel 17, a detachable inner barrel 141 is arranged in the inner cavity of the filter cartridge 14 and a drainage end 143 is arranged at the bottom, a downwardly concave ultrafine filter screen 1411 is arranged at the bottom of the inner barrel 141, both sides of the filter cartridge 14 are connected to the position adjustment seat 21 through a connecting rod, and when the filter cartridge 14 is raised to the highest point, the top is embedded in the notch at the bottom of the filter box 1 for sealing connection and mutual communication, and at this time, the bottom of the filter cartridge 15 is connected to the ultrafine filter screen 14 11 is fitted with the bottom of the feed barrel 11; a connecting seat 16 is provided at the bottom of the feed barrel 11; a protruding connector 144 is provided on the top of the filter cartridge 14 to match the connecting seat 16, and when the filter cartridge 14 is raised to the highest point, the protruding connector 144 is embedded in the connecting seat 16 for fitting; a sealing ring 142 is provided on the outer side of the protruding connector 144; the inner barrel 141 is embedded in the filter cartridge 14 from top to bottom and is placed on the placement block on the surface wall of the filter cartridge 14, at this time, there is a gap between the inner barrel 141 and the bottom of the filter cartridge 14 There is a certain space; the position adjustment seat 21 includes a motor 211, a screw rod 212, and a limit rod 213. The motor 211 is meshed with the bottom of the screw rod 212, and the surface of the screw rod 212 is threadedly connected with a threaded seat 214. The surface of the screw rod 212 is covered with a sliding sleeve 215 and is fixedly connected to the threaded seat 214 through the side of the connecting rod. The front of the sliding sleeve 215 is fixedly connected to the side of the filter cartridge 14 through the connecting rod; the top of the screw rod 212 and the limit rod 213 are arranged on the top of the bottom barrel 17.

[0029] In this embodiment, the mother liquor is sent into the filter box through the feed port, and then the filter element barrel 15 is driven to rotate by the driving motor 13, thereby generating centrifugal force. At this time, the filtered liquid will enter through the water inlet hole 151 for filtration, and then be discharged from the bottom of the filter element barrel 15. The discharged water is discharged from the ultrafine filter mesh into the bottom of the filter barrel 14, and the unfiltered water will be collected in the inner barrel 141, so that the product after centrifugal filtration can be collected in the inner barrel 141 in the filter barrel 14, and then the filter barrel 14 is lowered through the adjustment seat, which drives the screw rod 212 to rotate through the motor 211, thereby driving the threaded seat 214 threadedly connected thereto to move up or down following the forward or reverse rotation of the motor 211, thereby driving the sliding sleeve 215 to move up or down, and finally realizing the upward and downward movement of the filter barrel 14. After the downward movement, the inner barrel is lifted to prevent the racemic mixture from remaining in the discharge channel, causing part of the product to be lost, resulting in less product, lower efficiency, and affecting the experimental data.

[0030] Embodiment 2

[0031] A centrifugal filter for a drug raw material of the present utility model, an inlet barrel 11 is installed on the top of a filter box 1.

[0032] In this embodiment, during the filtration process, other reactants or materials can be added according to requirements.

[0033] Working principle:

[0034] When in use, the mother liquor is fed into the filter box through the feed port, and then the filter element cylinder 15 is driven to rotate by the driving motor 13, thereby generating a centrifugal force. At this time, the liquid to be filtered will enter through the water inlet hole 151 for filtration and then be discharged from the bottom of the filter element cylinder 15. The discharged water is discharged from the ultra-fine filter screen into the bottom of the filter cylinder 14, while the unfiltered part will be collected in the inner barrel 141. Then, the filter cylinder 14 is lowered through the adjusting seat. It is driven by the motor 211 to drive the lead screw 212 to rotate, thereby driving the threaded seat 214 threadedly connected thereto to move up or down following the forward or reverse rotation of the motor 211, thereby driving the sliding sleeve 215 to move up or down, and finally realizing the up and down movement of the filter cylinder 14. After moving down, the inner barrel is lifted, which can prevent the racemic mixture from remaining on the discharge channel, resulting in the loss of a part of the product, reducing the amount of the product and the efficiency, and affecting the experimental data. The filter cylinder 14 with adjustable position is provided, and the racemic mixture after centrifugal filtration can be collected in the inner barrel of the filter cylinder 14. Then, by lowering the adjusting seat 21 and directly lifting the inner barrel 141, it can prevent the racemic mixture from remaining on the discharge channel, resulting in the loss of a part of the product, reducing the amount of the product and the efficiency, and affecting the experimental data. An inlet barrel 11 is installed on the top of the filter box 1, and the required reactants can be added during the filtration process, which is simple and convenient.

[0035] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0036] The control mode of the present utility model is controlled by a controller. The control circuit of the controller can be realized by simple programming by those skilled in the art. The provision of power also belongs to the common knowledge in the art, and the present utility model is mainly used to protect mechanical devices. Therefore, the control mode and circuit connection of the present utility model will not be explained in detail.

[0037] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A centrifugal filter for pharmaceutical raw materials, characterized in that, It includes a filter box (1) and a support base (2). The filter box (1) is installed above the support base (2). A driving motor (13) is installed on the top of the filter box (1), and a feed port (12) is arranged on the side. A filter element cylinder (15) is arranged inside the filter box (1). The top of the filter element cylinder (15) is in meshing transmission connection with the driving motor (13), and a number of water inlet holes (151) are arranged on the surface. A hollow bottom barrel (17) is installed at the bottom of the filter box (1). Position adjusting seats (21) are arranged on both sides in the middle of the support base (2). A movable filter cylinder (14) is arranged inside the bottom barrel (17). A detachable inner barrel (141) is arranged in the inner cavity of the filter cylinder (14), and a drainage end (143) is arranged at the bottom. A downwardly concave ultra-fine filter screen (1411) is arranged at the bottom of the inner barrel (141). Both sides of the filter cylinder (14) are connected to the position adjusting seats (21) through connecting rods. When the filter cylinder (14) rises to the highest position, the top is embedded into the notch at the bottom of the filter box (1) for sealed connection and mutual communication. At this time, the bottom of the filter element cylinder (15) is in contact with the inner bottom of the ultra-fine filter screen (1411).

2. The centrifugal filter for a pharmaceutical raw material according to claim 1, characterized in that: A convex connecting head (144) that cooperates with the connecting seat (16) is arranged at the top of the filter cylinder (14). When the filter cylinder (14) rises to the highest position, the convex connecting head (144) is embedded into the connecting seat (16) for fitting.

3. The centrifugal filter for a pharmaceutical raw material according to claim 2, characterized in that: A sealing ring (142) is arranged on the outside of the convex connecting head (144).

4. The centrifugal filter for a pharmaceutical raw material according to claim 1, characterized in that: The inner barrel (141) is embedded into the filter cylinder (14) from top to bottom and placed on the placing block on the surface of the filter cylinder (14). At this time, there is a certain space between the bottom of the inner barrel (141) and the filter cylinder (14).

5. The centrifugal filter for a pharmaceutical raw material according to claim 1, characterized in that: A feeding barrel (11) is installed on the top of the filter box (1).

6. The centrifugal filter for a pharmaceutical raw material according to claim 5, wherein: A connecting seat (16) is arranged at the bottom of the feeding barrel (11).

7. The centrifugal filter for a drug raw material according to claim 1, wherein: The position adjusting seat (21) includes a motor (211), a lead screw (212), and a limit rod (213). The motor (211) is in meshing connection with the bottom of the lead screw (212). A threaded seat (214) is threadedly connected to the surface of the lead screw (212). A sliding sleeve (215) is sleeved on the surface of the lead screw (212) and is fixedly connected to the threaded seat (214) through a connecting rod on the side. The front of the sliding sleeve (215) is fixedly connected to the side of the filter cylinder (14) through a connecting rod.

8. The centrifugal filter for a pharmaceutical raw material according to claim 7, characterized in that: The top of the lead screw (212) and the limit rod (213) is arranged at the top of the bottom barrel (17).

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