CN213313616U

CN213313616U - Filter funnel

Info

Publication number: CN213313616U
Application number: CN202021566208.7U
Authority: CN
Inventors: 庹世川; 李泽林; 陶建
Original assignee: Chengdu Zen Sunda Bio Pharmaceutical Technology Co ltd
Current assignee: Chengdu Zen Sunda Bio Pharmaceutical Technology Co ltd
Priority date: 2020-08-02
Filing date: 2020-08-02
Publication date: 2021-06-01
Anticipated expiration: 2030-08-02

Abstract

The utility model discloses a filter funnel, which comprises a funnel bottle body, a funnel conical body, a filter layer body, an upper cover, a gas main pipe, a gas distribution pipe, a flow regulating valve, a handle and a liquid receiving pipe; the utility model discloses a filter funnel has effectively avoided the condition that the burning takes place for the contact air when filtering inflammable catalyst, inflammable solid, reduces the potential harm to experiment operating personnel person, avoids the reaction product loss, and rotten pollution damage has avoided the serious consequence of the unexpected failure of laboratory synthesis chemical product aftertreatment.

Description

Filter funnel

Technical Field

The utility model relates to a chemical instrumentation technical field especially relates to a filter funnel.

Background

The filter funnel is a device used in cooperation with a filter flask for filtering a chemical reaction solution or a post-treatment solution, and is a common device in laboratory synthesis of chemical compounds. When the vacuum-pumping filter is used, a solid-liquid mixture to be filtered is arranged inside the upper part of the funnel, and the hole neck of the filter flask is connected with the vacuum-pumping device, so that negative pressure in the bottle body is realized, liquid above the filter funnel flows into the filter flask, and solid is remained in the filter funnel, thereby achieving the purpose of solid-liquid separation.

At present, the filter funnel disclosed in the prior art has many defects when performing a filtering operation on a reaction liquid containing a flammable catalyst (such as a palladium-carbon catalyst and a raney nickel catalyst) and a flammable solid (such as NaH), including that a common filter funnel exposes the operation to the air, when the filtering approaches to a tail sound, the flammable catalyst and the flammable solid are in contact with the air, so that the flammable catalyst and the flammable solid are easily burnt, and further a fire disaster occurs, thereby causing great harm to the personnel of experimental operators; moreover, the burning easily causes the overturn of the experimental reaction device and the loss of filtrate, even the deterioration and damage of the product, so that the serious consequence that the post-treatment failure of the synthetic chemical product in the laboratory needs to be synthesized again increases the extra research and development cost.

Therefore, those skilled in the art have endeavored to develop a filter funnel which is intended to solve the drawbacks of the prior art filter funnel in the process of filtering flammable catalyst, flammable solid.

SUMMERY OF THE UTILITY MODEL

In view of the above defects in the prior art, the technical problem to be solved by the present invention is that when the existing filter funnel is used for filtering flammable catalysts and flammable solids, the flammable catalysts or flammable solids are easily exposed to the air and easily burn, which causes great harm to the human body of experiment operators; the loss of filtrate containing reaction products, deterioration, pollution and damage, and the failure of product post-treatment.

In order to achieve the purpose, the utility model provides a filter funnel, which comprises a funnel bottle body, a funnel conical body, a filter layer body, an upper cover, a gas main pipe, a gas distribution pipe, a flow regulating valve, a handle and a liquid receiving pipe;

the filter layer body is positioned in the space between the funnel bottle body and the funnel conical body, the upper part of the filter layer body is the funnel bottle body, the lower part of the filter layer body is the funnel conical body, and the lower part of the funnel conical body is connected with the liquid receiving pipe;

the upper cover comprises a left cover, a middle fixing cover and a right cover, the left cover and the right cover are respectively connected to the left side and the right side of the middle fixing cover, the left cover and the right cover can be opened upwards, and the left cover and the right cover both comprise handles; the end, far away from the middle fixed cover, of the left cover comprises a semicircular opening; the middle fixing cover is fixedly connected to the upper edge of the funnel bottle body;

the gas main pipe penetrates through the upper part of the funnel bottle body from the lower part of the right cover end, enters the inner space of the funnel bottle body and is connected with the gas distribution pipe; the gas main pipe comprises a flow regulating valve;

the gas distribution pipe is semicircular, the middle of the gas distribution pipe is connected with the gas main pipe, and the gas distribution pipe is positioned at the upper edge of the inner wall of the funnel bottle body; the gas distribution pipe comprises 5-30 gas guide holes towards the inner center direction of the funnel bottle body;

furthermore, the filter layer body is a porous glass layer, a porous ceramic layer or a sand core layer;

furthermore, the funnel bottle body, the funnel conical body and the liquid receiving pipe are made of ceramic or glass;

furthermore, the left cover and the right cover are connected with the middle fixed cover in a pin shaft manner;

in a preferred embodiment of the present invention, the filter layer body is a porous ceramic layer;

in a preferred embodiment of the present invention, the funnel body, the funnel cone and the liquid receiving tube are made of ceramic;

in a more preferred embodiment of the utility model, the contact part of the lower parts of the left cover and the right cover and the upper edge of the funnel bottle body comprises a rubber cushion;

scheme more than adopting, the utility model discloses a filter funnel has following beneficial technological effect:

the utility model discloses a filter funnel lets in inert gas in to the funnel bottle with the gas distribution pipe through gas leading, the inert gas that venthole on the gas distribution pipe flows out is full of whole funnel bottle in, it is flammable catalyst or the contact of flammable solid and air to fire when effectively completely cutting off filtering, avoided filtering flammable catalyst, contact air takes place the condition of burning when flammable solid, reduce the potential harm to experiment operating personnel person, avoid the reaction product loss, rotten pollution damage, the serious consequence of laboratory synthetic chemical product aftertreatment accident failure has been avoided.

The utility model discloses a filter funnel, the structure is simple and convenient, and is with low costs, easily preparation, is favorable to popularizing and applying.

The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings, so as to fully understand the objects, the features and the effects of the present invention.

Drawings

Fig. 1 is a schematic structural diagram of the filter funnel of the present invention;

FIG. 2 is a schematic structural view of the filter funnel of the present invention with the left and right covers removed;

in the figure, 1, a funnel bottle body; 2. a funnel cone; 3. a filter layer body; 4. a left cover; 5. a middle fixed cover; 6. a right cover; 7. a gas main pipe; 8. a gas distribution tube; 9. a flow regulating valve; 10. a handle; 11. a liquid receiving tube; 12. an air vent; 13. and (7) a pin shaft.

Detailed Description

The technical contents of the embodiments of the present invention will be more clearly understood and appreciated by referring to the drawings attached to the specification.

In the drawings, structurally identical elements are represented by like reference numerals, and structurally or functionally similar elements are represented by like reference numerals throughout the several views. The size and thickness of each component shown in the drawings are arbitrarily illustrated, and the present invention is not limited to the size and thickness of each component. The thickness of the components may be exaggerated where appropriate in the figures to improve clarity.

As shown in fig. 1-2, the filtering funnel of the present invention includes a funnel body 1, a funnel cone 2, a filtering layer body 3, an upper cover, a gas main pipe 7, a gas distribution pipe 8, a flow control valve 9, a handle 10, and a liquid receiving pipe 11; the filtering layer body 3 is positioned inside the space between the funnel bottle body 1 and the funnel conical body 2, the upper part of the filtering layer body 3 is the funnel bottle body 1, the lower part is the funnel conical body 2, and the lower part of the funnel conical body 2 is connected with the liquid receiving pipe 11; the upper cover comprises a left cover 4, a middle fixing cover 5 and a right cover 6, and the left cover 4 and the right cover 6 are respectively arranged at the left side and the right side of the middle fixing cover 5 and are connected by a pin shaft 13; the left cover 4 and the right cover 6 can be opened upwards, and the left cover 4 and the right cover 6 both comprise handles 10; the end of the left cover 4 far away from the middle fixed cover 5 comprises a semicircular opening; the middle fixing cover 5 is fixedly connected with the upper edge of the funnel bottle body 1; a gas main pipe 7 penetrates through the upper part of the funnel bottle body 1 from the lower part of the end of the right cover 6, enters the inner space of the funnel bottle body 1 and is connected with a gas distribution pipe 8; the gas main pipe 7 comprises a flow regulating valve 9; the gas distribution pipe 8 is semicircular, the middle of the gas distribution pipe is connected with the gas main pipe 7, and the gas distribution pipe 8 is positioned at the upper edge of the inner wall of the funnel bottle body 1; the gas distribution pipe 8 comprises 16 gas guide holes 12 towards the inner center direction of the funnel bottle body 1;

in the present embodiment, it is preferred that,

the funnel bottle body, the funnel conical body and the liquid receiving pipe are made of ceramics;

the filter layer body is a ceramic layer with holes;

in order to increase the sealing performance of the funnel bottle body and the upper cover, rubber pads are arranged at the contact parts of the lower parts of the left cover and the right cover and the upper edge of the funnel bottle body;

when in use, the utility model is used,

firstly, closing a flow regulating valve 9 on a gas main pipe 7, connecting the gas main pipe 7 with a gas pipeline for conveying nitrogen, well matching a funnel with a suction filtration bottle, then slowly opening the flow regulating valve 9, closing a left cover 4 and a right cover 6, enabling the nitrogen to flow out of a gas guide hole 12 through the gas main pipe 7 and a gas distribution pipe 8, and filling the interior of a funnel bottle body 1 with the nitrogen after ventilating for 2-3 minutes;

a vacuum water pump connected with a filter flask is started to pump air, reaction liquid containing flammable catalyst or flammable solid is poured from a semicircular opening of the left cover 4 for suction filtration, the flow regulating valve 9 is enlarged, and a large amount of nitrogen is sent, so that solid-liquid mixture containing flammable catalyst or flammable solid in the funnel bottle body 1 is in full contact with the nitrogen, the contact between the solid-liquid mixture and the nitrogen is isolated, and the combustion is prevented;

when most of the reaction liquid is filtered, the residual inflammable matters in the reaction bottle are washed by a solvent, and are poured into the funnel bottle body 1 through a semicircular opening at the end of the left cover 4 far away from the middle fixed cover 5, so that the inflammable matters are prevented from being residual in the reaction bottle;

when the filtration is finished, the filtrate containing the target product is removed to the next processing step, the utility model discloses a filter funnel is under the continuous protection of nitrogen gas, left part lid 4 and right part lid 6 are upwards opened, use specific solvent to shift the inflammables to the inflammables recovery container, and make the inside washing of funnel bottle 1 to no inflammables remain, close the flow control valve 9 on the gas main pipe 7, continue to wash the funnel clean and place for next operation and use, accomplish the filtering operation of the reaction liquid containing the inflammables;

the process is to this experiment neotype filter funnel assemble and use, operation shows, this experiment neotype filter funnel is in the use, inflammables is at 1 inside contactless air of funnel bottle, avoid inflammable catalyst filtering, contact air takes place the burning when inflammable solid, it is good to operating personnel personal safety, whole filtering process does not take place because inflammable catalyst or inflammable solid arouse the reaction product loss that the conflagration caused of burning, rotten pollution damage, the serious consequence of the unexpected failure of laboratory synthesis chemical product aftertreatment has been avoided, the problem of product aftertreatment failure is prevented.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the teachings of this invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims

1. A filter funnel is characterized by comprising a funnel bottle body (1), a funnel conical body (2), a filter layer body (3), an upper cover, a gas main pipe (7), a gas distribution pipe (8), a flow regulating valve (9), a handle (10) and a liquid receiving pipe (11);

the filtering layer body (3) is positioned inside the space between the funnel bottle body (1) and the funnel conical body (2), the funnel bottle body (1) is arranged at the upper part of the filtering layer body (3), the funnel conical body (2) is arranged at the lower part of the filtering layer body (3), and the liquid receiving pipe (11) is connected with the lower part of the funnel conical body (2);

the upper cover comprises a left cover (4), a middle fixed cover (5) and a right cover (6), the left cover (4) and the right cover (6) are respectively connected to the left side and the right side of the middle fixed cover (5), the left cover (4) and the right cover (6) can be opened upwards, and the left cover (4) and the right cover (6) both comprise handles (10); the end, far away from the middle fixed cover (5), of the left cover (4) comprises a semicircular opening; the middle fixing cover (5) is fixedly connected to the upper edge of the funnel bottle body (1);

the gas main pipe (7) penetrates through the upper part of the funnel bottle body (1) from the lower part of the end of the right cover (6), enters the inner space of the funnel bottle body (1), and is connected with the gas distribution pipe (8); the gas main pipe (7) comprises a flow regulating valve (9);

the gas distribution pipe (8) is semicircular, the middle of the gas distribution pipe is connected with the gas main pipe (7), and the gas distribution pipe (8) is positioned at the upper edge of the inner wall of the funnel bottle body (1); the gas distribution pipe (8) comprises 5-30 gas guide holes (12) towards the inner center direction of the funnel bottle body (1).

2. The filter funnel of claim 1,

the filtering layer body (3) is a porous glass layer, a porous ceramic layer or a sand core layer;

the funnel bottle body (1), the funnel conical body (2) and the liquid receiving pipe (11) are made of ceramic or glass.

3. The filter funnel of claim 1,

the left cover (4) and the right cover (6) are connected with the middle fixed cover (5) through a pin shaft (13).

4. The filter funnel of claim 2,

the filter layer body is a ceramic layer with holes;

the funnel bottle body, the funnel conical body and the liquid receiving pipe are made of ceramics.

5. The filter funnel of claim 1,

the contact part of the lower parts of the left cover (4) and the right cover (6) and the upper edge of the funnel bottle body (1) comprises a rubber cushion.