Dynamic membrane organic impurity filtering device

Abstract

The utility model relates to a dynamic membrane organic impurity filtering device which comprises a filtering device body, and the filtering device body is composed of a liquid storage tank used for storing raw material liquid needing to be clarified, a liquid conveying pump, a cleaning pump, a membrane assembly and a liquid producing tank used for storing produced liquid. The side body of the liquid storage tank is connected with a liquid inlet of the membrane assembly through a first pipeline with a liquid conveying pump, a liquid outlet at the upper end of the membrane assembly is connected with a second pipeline with a flow meter and a turbidimeter, and a concentrated liquid outlet at the lower end of the membrane assembly is connected with the bottom of the liquid storage tank through a backflow pipeline; the second pipeline is respectively connected with a third pipeline and a fourth pipeline through a tee joint, the third pipeline is connected with an inlet of the liquid production tank, and the fourth pipeline is connected with the top of the liquid storage tank. The device has the characteristics of simple and reasonable structure, safety, high efficiency, small occupied area, low use cost, low energy consumption and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of raw material liquid clarification and relates to a dynamic membrane organic impurity filtering device. Background Art

[0002] Clarification of raw liquid is an important process in the biopharmaceutical industry. It can also achieve the clarification effect for Chinese medicine extracts and fermentation broths. Currently, ultrafiltration is commonly used to complete clarification on the market, and ceramic membrane filtration is commonly used. However, ceramic membrane filtration requires high pressure, which causes some macromolecular chains to break up and pass through the ceramic membrane. In some special extracts, the broken macromolecular chains will re-aggregate after standing for a period of time.

[0003] Therefore, a dynamic membrane organic impurity filtration device is designed to overcome the above problems. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and to provide a dynamic membrane organic impurity filtering device which has a simple and reasonable structure, is safe and efficient, occupies a small area and has a low cost.

[0005] The utility model is realized through the following technical scheme: a dynamic membrane organic impurity filtering device, comprising a filtering device body, wherein the filtering device body is composed of a liquid storage tank for storing a raw liquid to be clarified, an infusion pump, a cleaning pump, a membrane assembly and a liquid production tank for storing a production liquid, the side of the liquid storage tank is connected to the liquid inlet of the membrane assembly through a first pipe with an infusion pump, the upper liquid outlet of the membrane assembly is connected to a second pipe with a flow meter and a turbidity meter, and the lower concentrated liquid outlet of the membrane assembly is connected to the bottom of the liquid storage tank through a reflux pipe; the second pipe is respectively connected to a third pipe and a fourth pipe through a tee, wherein the third pipe is connected to the inlet of the production tank, and the fourth pipe is connected to the top of the liquid storage tank.

[0006] Preferably, the first pipeline is connected to a cleaning pipeline with a cleaning pump on a side away from the membrane assembly, and a first valve and a second valve are respectively installed on both sides of the cleaning pump on the cleaning pipeline.

[0007] Preferably, the cleaning pipeline is connected to the bottom of the liquid production tank through a fifth pipeline, and a third valve is provided on the fifth pipeline.

[0008] Preferably, the membrane assembly is composed of a plurality of separation membranes arranged in parallel and connected to each other, wherein the front separation membrane is connected to the first pipe, the upper end of the rear separation membrane is connected to the second pipe, and the lower end is connected to the reflux pipe.

[0009] Preferably, valves are provided on the first pipeline, the third pipeline and the fourth pipeline.

[0010] The beneficial effects of the utility model are as follows:

[0011] The utility model has a simple overall structure of the dynamic membrane organic impurity filtering device, does not require combustion and heating, is highly safe, and adopts an internal circulation method, which will not cause pollution to the environment. The device produces high-purity liquid, is flexible and efficient, and the entire device occupies a small volume and the overall process is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model. DETAILED DESCRIPTION

[0013] In order to enable those skilled in the art to more clearly understand the purpose, technical solutions and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments.

[0014] In the description of the present invention, it should be understood that the orientations or positional relationships indicated by terms such as "upper", "lower", "left", "right", "inside", "outside", "horizontal", and "vertical" are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or original referred to must have a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0015] The present invention will be described in detail below with reference to the accompanying drawings: Figure 1 As shown, a dynamic membrane organic impurity filtration device includes a filtration device body, which is composed of a liquid storage tank 1 for storing a raw liquid to be clarified, an infusion pump 4, a cleaning pump 10, a membrane assembly 11 and a liquid production tank 12 for storing a production liquid. The side of the liquid storage tank 1 is connected to the liquid inlet of the membrane assembly 11 through a first pipe 18 with an infusion pump 4, and the upper liquid outlet of the membrane assembly 11 is connected to a second pipe 6 with a flowmeter 7 and a turbidity meter 8. The lower concentrated liquid outlet of the membrane assembly 11 is connected to the bottom of the liquid storage tank 1 through a reflux pipe 14; the second pipe 6 is connected to a third pipe 20 and a fourth pipe 2 respectively through a tee, wherein the third pipe 20 is connected to the inlet of the liquid production tank 12, and the fourth pipe 2 is connected to the top of the liquid storage tank 1.

[0016] The first pipe 18 is connected to a cleaning pipe 21 with a cleaning pump 10 at a side away from the membrane assembly 11 . A first valve 15 and a second valve 17 are installed on both sides of the cleaning pump 10 on the cleaning pipe 21 .

[0017] The cleaning pipeline 21 is connected to the bottom of the liquid production tank 12 through a fifth pipeline 23 , and a third valve 16 is provided on the fifth pipeline 23 .

[0018] The membrane assembly 11 is composed of a plurality of separation membranes 19 arranged in parallel and connected to each other, and the front separation membrane 19 is connected to the first pipe 18, the upper end of the rear separation membrane 19 is connected to the second pipe 6, and the lower end is connected to the reflux pipe 14.

[0019] The first pipeline 18 , the third pipeline 20 and the fourth pipeline 2 are all provided with valves, which are the fourth valve 5 , the fifth valve 9 and the sixth valve 3 respectively.

[0020] The working process of this utility model is as follows:

[0021] After the overall installation of the present invention is completed, the infusion pump 4 and the fourth valve 5 are opened first, and the raw liquid stored in the liquid storage tank 1 is transported to the first pipe 18 and then enters the liquid inlet of the membrane assembly 11. The product liquid processed by the membrane assembly 11 passes through the second pipe 6, and the values ​​of the flow meter 7 and the turbidity meter 8 are used to judge whether the clarity of the raw liquid reaches the required level. If the required clarity is not reached, the sixth valve 3 is opened to return the liquid to the liquid storage tank 1 through the fourth pipe 2. If the required clarity is reached, the fifth valve 9 is opened to transport it to the liquid storage tank 12, and the concentrated liquid outlet of the membrane assembly 11 is returned to the liquid storage tank 1 through the reflux pipe 14 for further filtration. After the system has been running for a period of time, observe the flow meter 7. When the value drops to a certain range, the impurities covering the surface of the membrane assembly will be cleaned. The third valve 16, the cleaning pump 10, the second valve 17, the infusion pump 4, and the fourth valve 5 will be closed. The filtered liquid will be transported to the first pipe 18 through the infusion pump 10 and the second valve 17 and enter the membrane assembly 11. The membrane assembly 11 will be cleaned and the value of the flow meter 7 will be observed. When the value returns to the normal working state, the system will switch to the normal filtering state.

[0022] The specific embodiments described herein are merely illustrative of the principles and effects of this utility model and are not intended to limit this utility model. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, any equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical concepts disclosed in this utility model shall be covered by the claims of this utility model.

Claims

1. A dynamic membrane organic impurity filter device, comprising a filter device body, characterized in that: The filtering device body is composed of a liquid storage tank (1) for storing a raw liquid to be clarified, an infusion pump (4), a cleaning pump (10), a membrane assembly (11), and a liquid production tank (12) for storing a production liquid. The side of the liquid storage tank (1) is connected to the liquid inlet of the membrane assembly (11) through a first pipe (18) with an infusion pump (4), the upper liquid outlet of the membrane assembly (11) is connected to a second pipe (6) with a flow meter (7) and a turbidity meter (8), and the lower concentrated liquid outlet of the membrane assembly (11) is connected to the bottom of the liquid storage tank (1) through a reflux pipe (14); the second pipe (6) is connected to a third pipe (20) and a fourth pipe (2) through a tee, wherein the third pipe (20) is connected to the inlet of the production liquid tank (12), and the fourth pipe (2) is connected to the top of the liquid storage tank (1).

2. The dynamic membrane organic impurity filtering device according to claim 1, characterized in that: The first pipe (18) is connected to a cleaning pipe (21) with a cleaning pump (10) on a side away from the membrane assembly (11), and a first valve (15) and a second valve (17) are respectively installed on both sides of the cleaning pump (10) on the cleaning pipe (21).

3. The dynamic membrane organic impurity filtering device according to claim 2, characterized in that: The cleaning pipeline (21) is connected to the bottom of the liquid production tank (12) through a fifth pipeline (23), and a third valve (16) is provided on the fifth pipeline (23).

4. The dynamic membrane organic impurity filtration device according to claim 2 or 3, characterized in that: The membrane assembly (11) is composed of a plurality of separation membranes (19) arranged in parallel and connected to each other, wherein the front separation membrane (19) is connected to the first pipe (18), the upper end of the rear separation membrane (19) is connected to the second pipe (6), and the lower end thereof is connected to the reflux pipe (14).

5. The dynamic membrane organic impurity filtering device according to claim 4, characterized in that: Valves are provided on the first pipeline (18), the third pipeline (20) and the fourth pipeline (2).

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