Hydroxypropyl methyl cellulose filter pressing tank

Abstract

The utility model relates to the technical field of filter pressing equipment, in particular to a hydroxypropyl methyl cellulose filter pressing tank, which adopts the technical scheme that the hydroxypropyl methyl cellulose filter pressing tank comprises an upper shell, a lower shell, a filter cartridge and a driving component, and an electric butterfly valve is fixedly mounted at the bottom in the lower shell; a filter cartridge is fixedly mounted at the top of the electric butterfly valve, a plurality of drain holes are formed in the side surface of the filter cartridge, a discharge hole matched with the top of the electric butterfly valve is formed in the bottom of the filter cartridge, and a filter membrane is fixedly mounted on the inner wall of the filter cartridge. According to the utility model, the driving assembly is arranged in the material pressing groove, and the eccentric wheel rotates to drive the whole material pressing groove to carry out gravity center change, so that the material pressing groove can carry out reciprocating filter pressing on materials in the horizontal direction while vertically pressing the materials in the filter cartridge; therefore, the filter pressing effect of the device on the hydroxypropyl methyl cellulose is improved, so that the moisture in the hydroxypropyl methyl cellulose is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of filter pressing equipment, in particular to a filter pressing tank for hydroxypropyl methylcellulose. Background Technique

[0002] Hydroxypropyl methylcellulose is a multifunctional pharmaceutical excipient, widely used in the pharmaceutical industry as a binder, thickener and stabilizer. In the process of producing hydroxypropyl methylcellulose, the filter pressing tank is one of the key equipment. By applying pressure, the liquid components penetrate through the filter medium, while the solid components are retained in the filter chamber, which is used to separate the pure hydroxypropyl methylcellulose product from the reaction mixture.

[0003] The following defects still exist in the prior art during use:

[0004] The filter pressing effect of the hydroxypropyl methylcellulose filter pressing tank in the prior art is not ideal enough. The filter pressing effect is affected by the shape structure of the filter pressing structure, and the pressing effect of the liquid in the solid components will be limited. Moreover, when the surface of the solid components is uneven, the filter pressing effect of the filter pressing equipment will also be affected;

[0005] The collection of solid components in the hydroxypropyl methylcellulose filter pressing tank in the prior art is rather cumbersome. It is necessary to manually hold scraping equipment for collection. However, there is a certain danger in manual collection by traditional filter pressing equipment, and frequently opening the equipment for material collection will greatly increase the probability of internal materials being contaminated.

[0006] In view of this, we propose a hydroxypropyl methylcellulose filter pressing tank to solve the existing problems. Content of the Utility Model

[0007] The purpose of the utility model is to provide a hydroxypropyl methylcellulose filter pressing tank to solve the problems raised in the above background technique.

[0008] To achieve the above purpose, the utility model provides the following technical solution: a hydroxypropyl methylcellulose filter pressing tank, including an upper shell, a lower shell, a filter cylinder and a driving component. An electric butterfly valve is fixedly installed at the bottom inside the lower shell;

[0009] The top of the electric butterfly valve is fixedly installed with a filter cylinder. A plurality of drainage holes are opened on the side of the filter cylinder, and a discharge hole that coincides with the top of the electric butterfly valve is opened at the bottom of the filter cylinder. A filter membrane is fixedly installed on the inner wall of the filter cylinder. An installation plate is fixedly installed at the bottom of the filter cylinder. Vibration motors are fixedly installed on both sides of the top of the installation plate, and the installation plate is a perforated plate. The edge position of the installation plate is fixedly connected to the inner wall of the lower shell;

[0010] The top of the lower housing is fixedly installed with an upper housing. One side of the top of the upper housing is fixedly installed with a material pumping pump, and a hydraulic telescopic rod is installed through the interior of the upper housing.

[0011] The bottom of the hydraulic telescopic rod is fixedly installed with a material pressing groove. A discharge port is formed on one side of the material pressing groove. An installation groove is formed inside the material pressing groove, and a material injection pipe is fixedly installed inside the material pressing groove.

[0012] A driving component is fixedly installed inside the installation groove. The driving component includes a motor. The output end of the motor is fixedly installed with a rotating shaft. An eccentric wheel is fixedly installed on the outer side of the rotating shaft. A groove is formed inside the eccentric wheel. An installation frame is fixedly installed inside the groove, and a plurality of groups of counterweight blocks are fixedly installed at the bottom of the installation frame.

[0013] Preferably, one side of the motor is fixedly installed with a cable, and the cable extends out of the top of the material pressing groove.

[0014] Preferably, the bottom of the lower housing is fixedly installed with an installation ring, and four support rods are fixedly installed at the bottom of the installation ring.

[0015] Preferably, one end of the material injection pipe is fixedly connected to the material pumping pump. The end of the material injection pipe away from the material pumping pump is fixedly installed with a solenoid valve, and the solenoid valve is fixedly connected to the discharge port.

[0016] Preferably, one side of the bottom of the lower housing is fixedly installed with a drain pipe, and a solenoid valve is fixedly installed at the connection position between the drain pipe and the lower housing.

[0017] Preferably, the bottom of the electric butterfly valve is fixedly installed with a discharge pipe, and the discharge pipe extends out of the lower housing.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0019] By installing a driving component inside the material pressing groove, the present utility model drives the overall center of gravity of the material pressing groove to change when the eccentric wheel rotates, so that the material pressing groove can perform reciprocating pressure filtration on the material in the horizontal direction while vertically pressing the material inside the filter cylinder, thereby improving the pressure filtration effect of the device on hydroxypropyl methylcellulose and facilitating the reduction of the moisture inside the hydroxypropyl methylcellulose.

[0020] The utility model supports the bottom of the filter cylinder by installing a mounting plate at the bottom of the filter cylinder. The bottom of the filter cylinder is supported by the mesh-shaped annular mounting plate, and the liquid discharged from the inside of the filter cylinder can leak down to the bottom inside the lower housing. Moreover, under the mechanical vibration transmitted by the vibration motor, the filter cylinder can be driven to vibrate synchronously, so that the hydroxypropyl methylcellulose attached to the inner wall inside the filter cylinder falls into the electric butterfly valve, thereby replacing manual discharge of the hydroxypropyl methylcellulose device, facilitating the collection of hydroxypropyl methylcellulose. Brief Description of the Drawings

[0021] Figure 1 is a schematic three-dimensional sectional structure diagram of the utility model;

[0022] Figure 2 is a schematic three-dimensional internal structure diagram of the utility model;

[0023] Figure 3 is a schematic three-dimensional structure diagram of the utility model;

[0024] Figure 4 is a schematic front sectional structure diagram of the utility model;

[0025] Figure 5 is a schematic front internal structure diagram of the utility model;

[0026] Figure 6 is a schematic front external structure diagram of the utility model;

[0027] Figure 7 is a schematic partial three-dimensional structure diagram of the utility model.

[0028] In the figure: 1. Upper housing; 101. Feeding pump; 102. Hydraulic telescopic rod; 2. Lower housing; 201. Installation ring; 202. Support rod; 203. Drain pipe; 204. Discharge pipe; 205. Electric butterfly valve; 3. Filter cylinder; 301. Mounting plate; 302. Vibration motor; 303. Filter membrane; 4. Driving assembly; 401. Rotating shaft; 402. Cable; 403. Motor; 404. Eccentric wheel; 405. Counterweight; 406. Mounting bracket; 5. Pressure feeding groove; 501. Installation groove; 502. Feeding pipe. Detailed Description of the Embodiment

[0029] The following further describes the technical solution of the utility model in conjunction with the drawings and specific embodiments.

[0030] Such as Figure 1 - Figure 7As shown in the figure, a kind of hydroxypropyl methylcellulose pressure filter tank proposed by the utility model includes an upper shell 1, a lower shell 2, a filter cylinder 3 and a driving assembly 4. An electric butterfly valve 205 is fixedly installed at the bottom inside the lower shell 2. The lower shell 2 and the upper shell 1 are combined to form a tank body, which is used to form a closed space for pressure filtering treatment of hydroxypropyl methylcellulose. The electric butterfly valve 205 adopts the D971XP-16Q type. The electric butterfly valve 205 can control the opening and closing of the bottom of the filter cylinder 3, so as to discharge the solid materials inside the filter cylinder 3 after the pressure filtering of hydroxypropyl methylcellulose is completed;

[0031] The top of the electric butterfly valve 205 is fixedly installed with a filter cylinder 3. A number of drain holes are opened on the side of the filter cylinder 3, and a discharge hole that coincides with the top of the electric butterfly valve 205 is opened at the bottom of the filter cylinder 3. A filter membrane 303 is fixedly installed on the inner wall of the filter cylinder 3. The bottom of the filter cylinder 3 is fixedly installed with a mounting plate 301. Vibration motors 302 are fixedly installed on both sides of the top of the mounting plate 301, and the mounting plate 301 is a perforated plate. The edge position of the mounting plate 301 is fixedly connected to the inner wall of the lower shell 2. The filter cylinder 3 can provide an installation position for the surrounding components and can store hydroxypropyl methylcellulose, so as to cooperate with the pressure feeding tank 5 to separate the solid and liquid of hydroxypropyl methylcellulose. The filter membrane 303 is made of polytetrafluoroethylene material. The hydroxypropyl methylcellulose is filtered through the filter membrane 303, so that the moisture inside the hydroxypropyl methylcellulose is discharged, and then the hydroxypropyl methylcellulose is pressed into a solid state for collection, which is convenient for subsequent processing and use of hydroxypropyl methylcellulose. The mounting plate 301 can limit the filter cylinder 3. On the one hand, it can ensure the stability of the installation of the filter cylinder 3, and on the other hand, it can drive mechanical vibration through the vibration motor 302, so as to drive the filter cylinder 3 to vibrate at a high frequency, so as to discharge the hydroxypropyl methylcellulose inside the filter cylinder 3 from the device. The vibration motor 302 adopts the YGT-30-6 type. After the vibration motor 302 is powered on, it can generate mechanical vibration, so as to drive the mounting plate 301 and the filter cylinder 3 to vibrate at a high frequency, so that the hydroxypropyl methylcellulose inside the filter cylinder 3 can be separated from the inner wall of the filter cylinder 3 and discharged from the device;

[0032] The upper housing 1 is fixedly installed on the top of the lower housing 2. On one side of the top of the upper housing 1, a material pumping pump 101 is fixedly installed. A hydraulic telescopic rod 102 is installed through the inside of the upper housing 1. The upper housing 1 can protect the top of the lower housing 2 and provide an installation position for the surrounding components. The material pumping pump 101 is of the E2M275 type. After the material pumping pump 101 is externally connected to a pipeline, it can pump the hydroxypropyl methylcellulose with moisture into the interior of the device, and then introduce the hydroxypropyl methylcellulose into the interior of the filter cartridge 3 according to the actual operation requirements of the device, so as to facilitate the pressure filtration process of the hydroxypropyl methylcellulose. The hydraulic telescopic rod 102 can move in the vertical direction, and then carry out the pressure filtration process on the hydroxypropyl methylcellulose inside the filter cartridge 3, so that the moisture inside the hydroxypropyl methylcellulose is extruded from the interior of the filter cartridge 3 under the condition of being under pressure;

[0033] The bottom of the hydraulic telescopic rod 102 is fixedly installed with a pressure feeding groove 5. A discharge port is provided on one side of the pressure feeding groove 5. An installation groove 501 is provided inside the pressure feeding groove 5. A feeding pipe 502 is fixedly installed inside the pressure feeding groove 5. The pressure feeding groove 5 can be driven by the hydraulic telescopic rod 102 to move vertically, so as to cooperate with the filter cartridge 3 to carry out pressure filtration on the hydroxypropyl methylcellulose, so that the moisture inside the hydroxypropyl methylcellulose is extruded. The installation groove 501 can provide an installation position for the driving component 4. The feeding pipe 502 can be connected to the material pumping pump 101, and then the hydroxypropyl methylcellulose with moisture is injected into the interior of the filter cartridge 3 through the feeding pipe 502;

[0034] A driving component 4 is fixedly installed inside the installation groove 501. The driving component 4 includes a motor 403. The output end of the motor 403 is fixedly installed with a rotating shaft 401. An eccentric wheel 404 is fixedly installed on the outer side of the rotating shaft 401. A groove is provided inside the eccentric wheel 404. An installation frame 406 is fixedly installed inside the groove, and a number of counterweight blocks 405 are fixedly installed at the bottom of the installation frame 406. The motor 403 is of the YE3-100KW type. After the motor 403 is powered on, it can rotate, thereby driving the rotating shaft 401 and the surrounding components to rotate. The rotating shaft 401 can be driven by the motor 403 to rotate, thereby driving the eccentric wheel 404 to rotate. The eccentric wheel 404 makes its own center of gravity shift through the internally installed counterweight blocks 405, so that when the rotating shaft 401 drives the eccentric wheel 404 to rotate, the driving component 4 can apply a horizontal thrust to the pressure feeding groove 5, and then the side of the pressure feeding groove 5 continuously carries out pressure filtration on the hydroxypropyl methylcellulose on the inner wall of the filter cartridge 3, thereby improving the pressure filtration effect of the device on the hydroxypropyl methylcellulose.

[0035] Furthermore, a cable 402 is fixedly installed on one side of the motor 403, and the cable 402 extends out of the top of the pressure feeding groove 5. The cable 402 can externally connect the motor 403 to a power source to facilitate power supply to the motor 403 to make it rotate.

[0036] Further, an installation ring 201 is fixedly installed at the bottom of the lower housing 2. Four support rods 202 are fixedly installed at the bottom of the installation ring 201. The installation ring 201 can connect the lower housing 2 with the support rods 202, so that the support rods 202 support the bottom of the device, ensuring the stability of the device.

[0037] Further, one end of the injection pipe 502 is fixedly connected to the pumping pump 101. An electromagnetic valve is fixedly installed at the end of the injection pipe 502 away from the pumping pump 101, and the electromagnetic valve is fixedly connected to the discharge port. The injection pipe 502 is used to guide hydroxypropyl methylcellulose into the interior of the device. When the pressing groove 5 descends, the hydroxypropyl methylcellulose inside the injection pipe 502 is injected into the interior of the filter cylinder 3 by opening the electromagnetic valve. Thus, when the pressing groove 5 is pressed to the bottommost part, the moisture inside the hydroxypropyl methylcellulose is squeezed out by the cooperation of the pressing groove 5 and the filter cylinder 3.

[0038] Further, a drain pipe 203 is fixedly installed on one side of the bottom of the lower housing 2. An electromagnetic valve is fixedly installed at the connection position between the drain pipe 203 and the lower housing 2. The drain pipe 203 is used to guide the water inside the lower housing 2 out of the device, so as to discharge the hydroxypropyl methylcellulose and the squeezed moisture separately, preventing the hydroxypropyl methylcellulose from being affected by moisture again.

[0039] Further, a discharge pipe 204 is fixedly installed at the bottom of the electric butterfly valve 205, and the discharge pipe 204 extends out of the lower housing 2. The discharge pipe 204 is used to guide the squeezed hydroxypropyl methylcellulose out of the device, facilitating the collection of the hydroxypropyl methylcellulose separately.

[0040] Working principle: After the device is assembled and checked to be correct, connect the external pipeline to the pumping pump 101, and pump the untreated hydroxypropyl methylcellulose into the interior of the injection pipe 502. The hydraulic telescopic rod 102 drives the components at the bottom to descend vertically. When the pressing groove 5 falls into the interior of the filter cylinder 3 and the bottom of the pressing groove 5 does not contact the filter cylinder 3, the hydraulic telescopic rod 102 stops working, making the pressing groove 5 suspended. The solenoid valve at one end of the injection pipe 502 is opened to allow the hydroxypropyl methylcellulose to enter the interior of the filter cylinder 3. After the injection is completed, the solenoid valve at one end of the injection pipe 502 is closed, and the hydraulic telescopic rod 102 drives the pressing groove 5 to reciprocate vertically downward to continuously extrude the hydroxypropyl methylcellulose inside the filter cylinder 3 for pressure filtration. At the same time, the motor 403 is energized to rotate, driving the eccentric wheel 404 and its internal components to rotate, and the driving assembly 4 applies a horizontal centrifugal force to the pressing groove 5, so that the side surface of the pressing groove 5 continuously extrudes the hydroxypropyl methylcellulose inside the filter cylinder 3. The water inside the hydroxypropyl methylcellulose is discharged from the filter cylinder 3 through the filter membrane 303 and then discharged from the device through the drain pipe 203. After the hydroxypropyl methylcellulose is pressure-filtered, the hydraulic telescopic rod 102 drives the components at the bottom to rise vertically, so that the pressing groove 5 is withdrawn from the interior of the filter cylinder 3. At the same time, the motor 403 stops rotating, the vibration motor 302 is energized to rotate, driving the mounting plate 301 and the filter cylinder 3 to vibrate at a high frequency. The electric butterfly valve 205 is opened to separate the hydroxypropyl methylcellulose attached to the filter membrane 303, which falls into the electric butterfly valve 205 and is discharged from the device through the discharge pipe 204, thereby completing the pressure filtration process of the hydroxypropyl methylcellulose.

[0041] The above specific embodiments are merely several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant revelations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A hydroxypropyl methylcellulose filter press tank, comprising an upper shell (1), a lower shell (2), a filter cartridge (3) and a drive assembly (4), characterized in that: An electric butterfly valve (205) is fixedly installed at the bottom of the lower housing (2); A filter cartridge (3) is fixedly mounted on the top of the electric butterfly valve (205); a plurality of drainage holes are provided on the side of the filter cartridge (3); a discharge hole that matches the top of the electric butterfly valve (205) is provided on the bottom of the filter cartridge (3); a filter membrane (303) is fixedly mounted on the inner wall of the filter cartridge (3); a mounting plate (301) is fixedly mounted on the bottom of the filter cartridge (3); vibration motors (302) are fixedly mounted on both sides of the top of the mounting plate (301); the mounting plate (301) is a mesh plate; and the edge of the mounting plate (301) is fixedly connected to the inner wall of the lower housing (2); An upper shell (1) is fixedly mounted on the top of the lower shell (2), a material extraction pump (101) is fixedly mounted on one side of the top of the upper shell (1), and a hydraulic telescopic rod (102) is installed through the interior of the upper shell (1); A material pressing groove (5) is fixedly mounted at the bottom of the hydraulic telescopic rod (102), a material discharge port is provided on one side of the material pressing groove (5), a mounting groove (501) is provided inside the material pressing groove (5), and a material injection pipe (502) is fixedly mounted inside the material pressing groove (5); A driving assembly (4) is fixedly mounted inside the mounting groove (501), the driving assembly (4) comprising a motor (403), a rotating shaft (401) is fixedly mounted on the output end of the motor (403), an eccentric wheel (404) is fixedly mounted on the outer side of the rotating shaft (401), a groove is formed inside the eccentric wheel (404), a mounting frame (406) is fixedly mounted inside the groove, and a plurality of groups of counterweights (405) are fixedly mounted on the bottom of the mounting frame (406).

2. The hydroxypropyl methylcellulose filter press according to claim 1, characterized in that: A cable (402) is fixedly mounted on one side of the motor (403), and the cable (402) extends out of the top of the pressing trough (5).

3. The hydroxypropyl methylcellulose filter press according to claim 1, characterized in that: A mounting ring (201) is fixedly mounted on the bottom of the lower shell (2), and four support rods (202) are fixedly mounted on the bottom of the mounting ring (201).

4. The hydroxypropyl methylcellulose filter press according to claim 1, characterized in that: One end of the injection pipe (502) is fixedly connected to the extraction pump (101), and an electromagnetic valve is fixedly installed on one end of the injection pipe (502) away from the extraction pump (101), and the electromagnetic valve is fixedly connected to the discharge port.

5. The hydroxypropyl methylcellulose filter press according to claim 1, characterized in that: A drainage pipe (203) is fixedly mounted on one side of the bottom of the lower shell (2), and a solenoid valve is fixedly mounted at the connection position between the drainage pipe (203) and the lower shell (2).

6. The hydroxypropyl methylcellulose filter press according to claim 1, characterized in that: A discharge pipe (204) is fixedly mounted on the bottom of the electric butterfly valve (205), and the discharge pipe (204) extends out of the lower housing (2).

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