CN212262539U - Filtering and separating device - Google Patents

Abstract

The utility model discloses a filtering and separating device. The device of the utility model passes between the liquid outlet at the bottom of the liquid container and the liquid inlet of the upper Buchner funnel of the two-way suction filter bottle, and between the liquid outlet at the bottom of the two-way suction filter bottle and the liquid inlet of the lower Buchner funnel. The pipelines are butted, and another liquid outlet at the bottom of the liquid container and another liquid inlet of the lower Buchner funnel are connected by pipelines; the air inlet and air outlet set at the bottle mouth of the two-way suction filter bottle are respectively connected with The vacuum pump is connected through the pipeline; the one-way suction filter bottle is connected with the vacuum pump through the pipeline through the air inlet and the air outlet set at the bottle mouth; each pipeline is provided with a valve. Through the cooperation of each valve on the device, various passing operations including the first to the fourth stage can be completed. The utility model has the advantages of simple structure, easy disassembly and assembly, various functions and higher efficiency.

Description

A filter separation device

technical field

The utility model belongs to the field of chemical reaction devices, in particular to a filtering and separating device.

Background technique

The vacuum filtration device consisting of a vacuum pump, a single Buchner funnel and a single-mouth one-way suction filter bottle is the most common filtration device in the laboratory, especially in the fields of material synthesis and catalyst preparation. However, with the continuous development of synthesis and preparation technology, people can obtain multiple samples of solid-liquid mixture at one time. The traditional vacuum filtration device can only filter one sample at a time, the filtration efficiency is low, and it is impossible to achieve the same sample at the same time. Separation and washing of particles of different sizes in a sample. In addition, if the synthesis amount of the same sample is large, the filter cake will be thicker when using the traditional vacuum filtration device, which will lead to slower filtration and washing rates, and it will take a very long time to complete the separation of a sample. . Therefore, it is very necessary to design an efficient filtering device.

Utility model content

The purpose of the utility model is to provide a filtration and separation device, which aims to solve the problems of simple function and low filtration efficiency of the existing vacuum suction filtration device.

The utility model is realized in this way, a filtration and separation device, which comprises a vacuum pump and a filtration and separation unit, the filtration and separation unit includes a liquid container, a two-way suction filter bottle, a single filter and a liquid container arranged in order from top to bottom in the direction of gravity. To the suction filter bottle, the top opening of the two-way suction filter bottle is equipped with an upper layer Buchner funnel, and the top opening of the one-way suction filter bottle is equipped with a lower layer Buchner funnel; wherein,

Between the liquid outlet at the bottom of the liquid container and the liquid inlet of the upper Buchner funnel of the two-way suction filter bottle, and between the liquid outlet at the bottom of the two-way suction filter bottle and the liquid inlet of the lower Buchner funnel are connected by pipelines respectively. , and another liquid outlet at the bottom of the liquid container and another liquid inlet of the lower Buchner funnel are connected through a pipeline;

The two-way suction filter bottle is connected to the vacuum pump through the pipeline by the air inlet and the air outlet set at the bottle mouth; the one-way suction filter bottle is connected to the vacuum pump through the air inlet and air outlet set at the bottle mouth respectively pipe connection;

Each of the pipes is provided with a valve.

Preferably, the device includes several of the above-mentioned filtration and separation units; wherein,

The two-way suction filter bottles are arranged in sequence, and the adjacent air inlets and air outlets between the two-way suction filter bottles are connected with pipes, and the air inlets and air outlets of the two-way suction filter bottles at the head and tail end are respectively connected with the vacuum pump through pipes;

Each one-way suction filter bottle is arranged in sequence, and the adjacent air inlets and air outlets between each one-way suction filter bottle are connected with the pipeline, and the air inlet and air outlet of the one-way suction filter bottle at the beginning and the end are respectively connected with the vacuum pump through the pipeline. ;

Each of the pipes is provided with a valve.

Preferably, the device further includes an intake three-way valve and an exhaust three-way valve, the intake three-way valve includes an intake end and two exhaust ends, and the exhaust three-way valve includes two intake ends and an exhaust end ;in,

The air inlet end of the air intake three-way valve is connected with the air outlet end of the vacuum pump through a pipeline, and the two air outlet ends of the air intake three-way valve respectively pass through the air inlets of the two-way suction filter bottle and the one-way suction filter bottle at the head end. pipe connection;

The two inlet ends of the air outlet three-way valve are respectively connected with the two-way suction filter bottle and the air outlet of the one-way suction filter bottle at the rear end through pipes, and the air outlet end of the air outlet three-way valve and the air inlet end of the vacuum pump pass through pipes. docking.

Preferably, the pipeline is a negative pressure resistant rubber hose.

Preferably, the device further includes a positioning frame for fixing the liquid container, the two-way suction filter bottle and the one-way suction filter bottle in the filtration and separation unit, and the bottom of the positioning frame is provided with a roller.

The utility model overcomes the deficiencies of the prior art and provides a filter separation device, the principle of which is to realize the series-parallel adjustable multi-stage separation of a plurality of solid-liquid mixture samples by adjusting the switches of different parts of the pipeline; The switches of the corresponding parts control components simultaneously realize the washing of solid particles of different particle sizes after multi-stage separation.

Compared with the shortcomings and deficiencies of the prior art, the utility model has the following beneficial effects:

(1) The components of the filtering and separating device of the present invention are relatively independent, have a simple structure, and are easy to disassemble and assemble, and can be matched with a corresponding number of storage components, filter components and collection components according to the needs of the experiment, and then a vacuum pump can be used to simultaneously realize multiple Rapid separation of solid-liquid mixture samples;

(2) the utility model can realize the separation and washing of particles of different particle sizes in the same sample;

(3) the present utility model can alleviate the problem of slow filtration and washing rate caused by thicker filter cake when the sample synthesis amount is large;

(4) The overall filtration efficiency of the utility model is high, which can greatly save resources and costs, and meet the needs of a large number of multi-batch filtration experiments.

Description of drawings

Fig. 1 is the structural representation of the filtration and separation device of the present utility model; wherein, 1 is a power supply, 2 is a vacuum pump, 3 is a pipeline, 4 is a three-way valve (air intake, air outlet three-way valve), and 5 to 7 are liquid containers, 8-10 are two-way suction filter bottles, 11-13 are one-way suction filter bottles, 14-16 are upper Buchner funnels, 17-19 are lower Buchner funnels, 20-25 are filter media, and 26-31 are sealing plugs , 32 is the positioning frame, 33 is the roller, 34-52 is the valve.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present utility model more clearly understood, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not intended to limit the present invention.

The utility model discloses a filtration and separation device. As shown in FIG. 1 , the device includes a vacuum pump 2 and a filtration and separation unit. The filtration and separation unit includes a liquid-holding container arranged in order from top to bottom in the direction of gravity, a two-way pumping unit. Filter bottle, one-way suction filter bottle, the top opening of the two-way suction filter bottle is equipped with an upper layer Buchner funnel, and the top opening of the one-way suction filter bottle is equipped with a lower layer Buchner funnel; wherein,

Between the liquid outlet at the bottom of the liquid container and the liquid inlet of the upper layer of the Buchner funnel of the two-way suction filter bottle, and between the liquid outlet at the bottom of the two-way suction filter bottle and the liquid inlet of the lower layer of the Buchner funnel respectively pass through the pipeline 3. Butt joint, and another liquid outlet at the bottom of the liquid container and another liquid inlet of the lower Buchner funnel are butted through pipeline 3;

The two-way suction filter bottle is connected to the vacuum pump 2 through the pipeline 3 by the air inlet and the air outlet set at the bottle mouth respectively; the air inlet and the air outlet set at the bottle mouth of the one-way suction filter bottle are respectively connected with The vacuum pump 2 is docked through the pipeline 3;

Each of the pipes 3 is provided with a valve.

In the embodiment of the present invention, the liquid container is an open glass container with a bottom opening and a connecting nozzle; the upper part of the two-way suction filter bottle near the bottle mouth has two connecting nozzles, and the bottom has a connecting nozzle; There are two connecting mouths on the upper part of the suction filter bottle near the mouth of the bottle. In addition, in the embodiment of the present invention, the Buchner funnel is provided with a filter medium and is matched with a rubber stopper to be butted on the mouth of the suction filter bottle, and the tip of the Buchner funnel passes through the rubber stopper into the suction filter bottle, as a kind of suction filter The conventional device settings for operation will not be repeated here.

In the embodiment of the present invention, the number of filtration and separation units may be one, or more than two, and when there are more than two filtration and separation units, they can only be used for the same purpose for simultaneous or step-by-step operation of each filtration and separation unit to improve efficiency, Simultaneous or stepwise operation of each filter separation unit for different purposes can also be used to increase efficiency.

When the number of filtration and separation units can be one, in the filtration and separation unit, any one of the liquid containers 5 to 7, one of the two-way suction filter bottles 8 to 10, and one of the one-way suction filter bottles 11 to 13 can be selected. The matching can be completed, the upper layer of Buchner funnel can be selected from 14 to 16, the filter medium can be selected from 20 to 22, the sealing plug can be selected from 26 to 28, and the two-way suction filter bottle can be selected from 8 to 10. Optional one of the funnels 17 to 19, any one of the filter media 23 to 25, one of the sealing plugs 29 to 31, and one of the one-way suction filter bottles 11 to 13 can complete the matching.

When there are more than two filtration and separation units, more specifically, taking 3 filtration and separation units as an example, each liquid container, two-way suction filter bottle, one-way suction filter bottle, Buchner funnel, filter medium, sealing plug, soft The positions and corresponding relationships of pipes and valves can be referred to Figure 1; it is emphasized that the two-way suction and filter bottles are arranged in sequence between each filtration and separation unit, and the adjacent air inlets and outlets between the two-way suction and filter bottles are The air port is docked with the pipeline 3, and the air inlet and air outlet of the two-way suction filter bottle at the head and tail end are respectively connected with the vacuum pump 2 through the pipeline 3; the one-way suction filter bottles are arranged in sequence and the adjacent air intakes between the one-way suction filter bottles The port and the air outlet are matched with the pipeline 3, and the air inlet and the air outlet of the one-way suction filter bottle at the head and the end are respectively connected with the vacuum pump 2 through the pipeline 3; each of the pipelines 3 is provided with a valve.

In terms of overall structure, in each filtration and separation unit, under the direction of gravity, a one-way liquid path is formed between the liquid container, the upper Buchner funnel, the two-way suction filter bottle, the lower Buchner funnel, and the one-way suction filter bottle. In addition, a circulating air channel is formed between the vacuum pump 2 and the two-way suction filter bottle and the one-way suction filter bottle, each connecting channel is controlled by a valve, and the air channel is in the vacuum pump. Under the action of 2, negative pressure is generated to promote the passage of liquid on the liquid channel.

In addition, in terms of a more specific implementation structure, the device also includes an intake three-way valve 4 and an exhaust three-way valve 4, the intake three-way valve 4 includes an intake end and two air outlet ends, and the exhaust three-way valve The valve 4 includes two air inlet ends and an air outlet end; wherein, the air inlet end of the air intake three-way valve 4 is connected with the air outlet end of the vacuum pump 2 through the pipeline 3, and the two air outlet ends of the air intake three-way valve 4 are respectively The two-way suction filter bottle and the air inlet of the one-way suction filter bottle at the head end are docked through the pipeline 3; the two inlet ends of the air outlet three-way valve 4 are respectively connected with the two-way suction filter bottle and the one-way suction filter bottle at the tail end. The air ports are butted through the pipeline 3 , and the air outlet end of the air outlet three-way valve 4 and the air intake end of the vacuum pump 2 are butted through the pipeline 3 .

In order to carry out a more unobjectionable expression in accordance with the above, in the embodiment of the present utility model, when the number of filtration and separation units is 1, the air inlet and air outlet at both ends of the two-way suction filter bottle are respectively connected with the vacuum pump 2 through the pipeline 3. ; The one-way suction filter bottle is connected to the vacuum pump 2 through the pipeline 3 by the air inlet and the air outlet set at the mouth of the bottle.

When the number of filtration and separation units is more than 2, multiple two-way suction filter bottles can be connected to the vacuum pump 2 in parallel, that is, the air inlet and outlet at both ends of each two-way suction filter bottle are connected to the vacuum pump 2 through pipelines respectively. 3 docking, the same setting can also be used for multiple one-way suction filter bottles. However, as a preferred solution, multiple two-way suction filter bottles or multiple one-way suction filter bottles can also be connected in series with the vacuum pump 2, specifically, each two-way suction filter bottle is arranged in sequence and each two-way suction filter bottle The adjacent air inlets and air outlets are docked with the pipeline 3, and the air inlet and air outlet of the two-way suction filter bottles at the head and tail ends are respectively connected with the vacuum pump 2 through the pipeline 3; the one-way suction filter bottles are arranged in sequence and each one-way The adjacent air inlets and air outlets between the suction filter bottles are docked with the pipeline 3, and the air inlet and the air outlet of the one-way suction filter bottles at the head and tail ends are respectively connected with the vacuum pump 2 through the pipeline 3; Equipped with valve. In the embodiment of the present invention, the air inlet and air outlet of the two-way suction filter bottle at the head and tail ends are respectively connected with the air outlet of the air inlet three-way valve 4 and the air inlet of the air outlet three-way valve 4, and the one-way suction at the head and tail ends The air inlet and the air outlet of the filter bottle are respectively connected with the other air outlet of the air inlet three-way valve 4 and the other air inlet of the air outlet three-way valve 4 .

In the embodiment of the present invention, in order to avoid the deformation of the pipeline 3 under the negative pressure state and cause blockage, the pipeline 3 used in the device of the present invention are all negative pressure rubber hoses. In addition, in order to facilitate the installation and positioning of each structure in the device, the device of the present invention also includes a positioning frame for fixing the liquid container, the two-way suction filter bottle, and the one-way suction filter bottle in the filtration and separation unit. There are rollers at the bottom of the rack.

The use method of the filtration and separation device of the present invention is at least one of one-stage passing operation, two-stage passing operation, three-stage passing operation and four-stage passing operation; wherein,

(1) One-stage pass operation: open the valve to make the vacuum pump 2 and the two-way suction filter bottle form a circulating air channel, open the valve to form a liquid channel between the liquid container and the two-way suction filter bottle, and complete the process of the liquid container. The operation of passing the liquid in the upper Buchner funnel and the operation of collecting the passed liquid in the two-way suction filter bottle;

(2) Two-stage pass operation: open the valve to make the vacuum pump 2 and the one-way suction filter bottle form a circulating air channel, open the valve to form a liquid channel between the liquid container and the one-way suction filter bottle, and complete the liquid storage The operation of passing the liquid contained in the container in the lower Buchner funnel and the operation of collecting the passed liquid in the one-way suction filter bottle;

(3) Three-stage pass operation: open the valve to make the vacuum pump 2 and the one-way suction filter bottle form a circulating air channel, open the valve to form a liquid channel between the two-way suction filter bottle and the one-way suction filter bottle, and complete the two-way suction filter bottle. The operation of passing the liquid collected in the suction filter bottle in the lower Buchner funnel and the operation of collecting the passed liquid in the one-way suction filter bottle;

(4) Four-stage pass operation: open the valve to form a circulating air channel between the vacuum pump 2, the two-way suction filter bottle and the one-way suction filter bottle, and open the valve to make the two-way suction between the liquid container and the two-way suction filter bottle. Liquid passages are formed between the filter bottle and the one-way suction filter bottle, and between the liquid container and the one-way suction filter bottle, respectively, to complete the passage of the liquid contained in the liquid container in the upper Buchner funnel and the lower Buchner funnel and The operation in which the passed liquid is collected in a one-way suction filter bottle.

In the embodiment of the present invention, the passing operation includes a filtering operation and a cleaning operation; wherein, the filtering operation is an operation of separating the liquid from the solid particles contained in the liquid after the liquid passes through the Buchner funnel; the cleaning operation is: After the cleaning agent passes through the Buchner funnel, the solid particles on the filter medium of the funnel are cleaned.

In the embodiment of the present invention, different operation purposes can be efficiently accomplished through any selection or combination of the first-level passing operation, the second-level passing operation, the third-level passing operation, and the fourth-level passing operation.

In conjunction with FIG. 1 , the embodiment of the present invention provides the following specific usage methods of the device of the present invention:

First, through the operation

All the components in Fig. 1 are assembled as shown in Fig. 1, and all valves are placed in a closed state. At the beginning of filtration, first add the same sample of solid-liquid mixture to be separated into glass containers 5, 6 and 7, then turn on power supply 1, vacuum pump 2, valves 34, 35, 37, 42, 47, 51, 36, 41 and 46 , the solid-liquid mixture sample automatically enters the Buchner funnels 14, 15 and 16 under the action of gravity; then under the action of the pressure difference, the solid particles in the mixture sample are intercepted by the filter media 20, 21 and 22 of suitable pore size, and the filtrate enters Suction filter bottles 8, 9 and 10; after filtration, add detergent to glass containers 5, 6 and 7 to complete the washing of solid particles. After the above operations, the separation and washing of the same large amount of solid-liquid mixture samples can be completed by means of a vacuum pump in series.

Second, the first-level pass operation and the third-level pass operation

All the components in Fig. 1 are assembled as shown in Fig. 1, and all valves are placed in a closed state. At the beginning of filtration, first add the same sample of solid-liquid mixture to be separated into glass containers 5, 6 and 7, then turn on power supply 1, vacuum pump 2, valves 34, 35, 37, 42, 47, 51, 39, 44, 49 , 52, 38, 43, 48, 36, 41 and 46, the solid-liquid mixture samples automatically enter Buchner funnels 14, 15 and 16 under the action of gravity; then under the action of pressure difference, the solid large particles in the mixture samples It is intercepted by the filter media 20, 21 and 22 of suitable pore size, and the small solid particles smaller than the pore size of the filter media 20, 21 and 22 enter the suction filter bottles 8, 9 and 10 with the filtrate; The liquid mixture automatically enters the Buchner funnels 17, 18 and 19 under the action of gravity, and under the action of the pressure difference, the small solid particles in the mixture are trapped by the filter media 23, 24 and 25 with smaller pore sizes, and the filtrate enters the suction pump. Filter bottles 11, 12 and 13; after filtration, add detergent to glass containers 5, 6 and 7, and open valves 40, 45 and 50 at the same time to complete the washing of solid particles of different sizes. After the above operations, the fractional separation and washing of the same large amount of solid-liquid mixture samples can be completed by means of a vacuum pump in parallel.

Three, one-level pass operation, four-level pass operation

All the components in Fig. 1 are assembled as shown in Fig. 1, and all valves are placed in a closed state. At the beginning of filtration, first add different samples of solid-liquid mixture to be separated into glass containers 5, 6 and 7, then turn on power 1, vacuum pump 2, valves 34, 35, 37, 42, 47, 51, 39, 44, 49 , 52, 38, 43, 48, 36, 41 and 46, the solid-liquid mixture samples entered Buchner funnels 14, 15 and 16 automatically under the action of gravity respectively; The particles are respectively retained by the filter media 20, 21 and 22 of suitable pore size, and the small solid particles smaller than the pore size of the filter media 20, 21 and 22 enter the suction filter bottles 8, 9 and 10 respectively with the filtrate; then the suction filter bottles 8, 9 and 10 The solid-liquid mixture in the mixture enters the Buchner funnels 17, 18 and 19 automatically under the action of gravity, and under the action of the pressure difference, the small solid particles in the mixture are filtered by the filter media 23, 24 and 25 with smaller pore sizes, respectively. The filtrate enters the suction filtration bottles 11, 12 and 13 respectively; after the filtration, the detergent is added to the glass containers 5, 6 and 7 respectively, and the valves 40, 45 and 50 are opened simultaneously to complete the washing of solid particles of different sizes. After the above operations, the fractional separation and washing of different solid-liquid mixture samples can be completed in parallel with the help of a vacuum pump.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the present invention. within the scope of protection of the utility model.

Claims (5)

1. a filter separation device, it is characterized in that, this device comprises vacuum pump and filter separation unit, and this filter separation unit comprises liquid container, two-way suction filter bottle, one-way pump set sequentially from top to bottom in the direction of gravity. A filter bottle, the top opening of the two-way suction filter bottle is equipped with an upper layer Buchner funnel, and the top opening of the one-way suction filter bottle is equipped with a lower layer Buchner funnel; wherein, Between the liquid outlet at the bottom of the liquid container and the liquid inlet of the upper Buchner funnel of the two-way suction filter bottle, and between the liquid outlet at the bottom of the two-way suction filter bottle and the liquid inlet of the lower Buchner funnel are connected by pipelines respectively. , and another liquid outlet at the bottom of the liquid container and another liquid inlet of the lower Buchner funnel are connected through a pipeline; The two-way suction filter bottle is connected to the vacuum pump through the pipeline by the air inlet and the air outlet set at the bottle mouth; the one-way suction filter bottle is connected to the vacuum pump through the air inlet and air outlet set at the bottle mouth respectively pipe connection; Each of the pipes is provided with a valve. 2. The filtration and separation device according to claim 1, wherein the device comprises a plurality of the above-mentioned filtration and separation units; wherein, The two-way suction filter bottles are arranged in sequence, and the adjacent air inlets and air outlets between the two-way suction filter bottles are connected with pipes, and the air inlets and air outlets of the two-way suction filter bottles at the head and tail end are respectively connected with the vacuum pump through pipes; Each one-way suction filter bottle is arranged in sequence, and the adjacent air inlets and air outlets between each one-way suction filter bottle are connected with the pipeline, and the air inlet and air outlet of the one-way suction filter bottle at the beginning and the end are respectively connected with the vacuum pump through the pipeline. ; Each of the pipes is provided with a valve. 3. The filtering and separating device according to claim 2, characterized in that, the device further comprises an inlet three-way valve and an outlet three-way valve, and the inlet three-way valve comprises an inlet end and two outlet ends, so The outlet three-way valve includes two inlet ends and an outlet end; wherein, The air inlet end of the air intake three-way valve is connected with the air outlet end of the vacuum pump through a pipeline, and the two air outlet ends of the air intake three-way valve respectively pass through the air inlets of the two-way suction filter bottle and the one-way suction filter bottle at the head end. pipe connection; The two inlet ends of the air outlet three-way valve are respectively connected with the two-way suction filter bottle and the air outlet of the one-way suction filter bottle at the rear end through pipes, and the air outlet end of the air outlet three-way valve and the air inlet end of the vacuum pump pass through pipes. docking. 4 . The filtering and separating device according to claim 3 , wherein the pipeline is a negative pressure resistant rubber hose. 5 . 5. The filtration and separation device according to claim 1, characterized in that, the device further comprises a positioning frame for fixing the liquid container, the two-way suction filter bottle and the one-way suction filter bottle in the filter and separation unit, The bottom of the positioning frame is provided with rollers.

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