CN214158704U - Filter equipment is used in laboratory - Google Patents

Abstract

The utility model discloses a filter equipment is used in laboratory, include: the bottom of the double-layer funnel is detachably and hermetically connected with the ground joint; the lower part of the ground joint is provided with a sand core filter, and the ground joint is hermetically connected with the sand core filter through a fastening device; the top of husky core filter is equipped with liquid phase filtration membrane, the lower part of husky core filter is equipped with the receiving flask, husky core filter and receiving flask sealing connection, be equipped with the exhaust tube that is used for being connected with the vacuum pump on the husky core filter. The utility model discloses a filter equipment is used in laboratory has compact structure, simple, the filtration efficiency height of principle, washs advantages such as maintenance convenience.

Description

Filter equipment is used in laboratory

Technical Field

The utility model relates to an experimental apparatus technical field especially relates to a filter equipment is used in laboratory.

Background

Filtration is a routine operation in a laboratory, and is mainly used for solid-liquid separation, such as various leaching solutions, wastewater, dissolving solutions, slurry, sediment solutions and the like, and after solid and liquid phases of the leaching solutions are separated, the solid and liquid phases are respectively measured.

At present, the common filtration modes in a laboratory mainly comprise natural filtration of a funnel and filter paper, and suction filtration of a vacuum circulating pump and a core sand filter device. When a natural filtration mode of a funnel and filter paper is adopted, if the solid content of a sample is high, the filter paper is easy to block, and the filtration speed is slow. When a filtering mode of a vacuum circulating pump plus a core sand filtering device is adopted, solid matters in the sample block the filter membrane due to the small contact area of the device and the sample and the small aperture (0.45 mu m) of the filter membrane, so that the filtering efficiency is reduced; if the filter membrane is replaced, the device needs to be disassembled and then reinstalled, the operation is troublesome, and the experimental result is easily influenced. In addition, if a centrifuge is used to centrifuge and then filter a sample to be filtered, although the filtering speed can be increased to some extent, continuous processing of the sample cannot be achieved. And the laboratory also needs to be provided with instruments such as a centrifuge and the like, so that the cost of sample filtration is increased.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome the not enough of prior art, provide a compact structure, the principle is simple, filtration efficiency is high, wash and maintain convenient laboratory filter equipment.

In order to solve the technical problem, the utility model discloses a following technical scheme:

a filter apparatus for a laboratory, comprising: the bottom of the double-layer funnel is detachably and hermetically connected with the ground joint; the lower part of the ground joint is provided with a sand core filter, and the ground joint is hermetically connected with the sand core filter through a fastening device; the top of husky core filter is equipped with liquid phase filtration membrane, the lower part of husky core filter is equipped with the receiving flask, husky core filter and receiving flask sealing connection, be equipped with the exhaust tube that is used for being connected with the vacuum pump on the husky core filter.

As a further improvement, the double-layer funnel comprises an inner layer funnel and an outer layer funnel, the inner layer funnel comprises an inner layer funnel body with regularly arranged through holes, the outer layer funnel comprises an outer layer funnel body and an outer layer funnel pipe, the inner layer funnel body is nested in the outer layer funnel body, and a liquid drainage channel is formed between the inner layer funnel body and the outer layer funnel body.

As a further improvement, the inner funnel body is provided with a cross through hole with equal holes, and the hole of the cross through hole is 1 mm-3 mm.

As a further improvement, the bottom outside of the outer funnel pipe is provided with a frosted surface, and the outer funnel pipe is connected with the grinding joint in a sealing manner through the frosted surface.

As a further improvement of the present invention, the fastening device is a spring clip.

As a further improvement, the sand core filter is further provided with a flow guide pipe, the flow guide pipe extends into the receiving bottle, and a gap exists between the flow guide pipe and the bottom of the receiving bottle.

As a further improvement of the utility model, the exhaust tube of the sand core filter is connected with the vacuum pump through a rubber hose.

As a further improvement, the outside of husky core filter and the inboard of receiving bottle bottleneck all are equipped with the dull polish, through the dull polish in the husky core filter outside and the inboard dull polish cooperation of receiving bottle bottleneck to realize sealing connection.

Compared with the prior art, the utility model has the advantages of:

1. the utility model discloses a filter equipment is used in laboratory through connecting gradually double-deck funnel, ground joint, husky core filter and receiving bottle and set up, has the advantage that the principle is simple, easy dismounting. The bottom of the double-layer funnel is connected with the ground joint in a detachable and sealing mode, so that the double-layer funnel can be quickly disassembled and assembled, and filter paper can be quickly replaced conveniently. Realize through fastener that the mill mouthful connects and husky core filter's the sealing connection that can dismantle, be convenient for carry out husky core filter top filter membrane's quick replacement. With husky core filter and vacuum pump connection, effectively avoided the risk that the filtrating in the suction filtration in-process receiving flask was taken out, improved filterable stability. Through the cooperation of double-deck filter funnel and psammitolite filter, both realized coarse filtration, realized meticulous filtration again, reached fine filter effect, improved the purity of sample greatly, avoided the loaded down with trivial details process of multiple filtration, improved work efficiency.

2. The utility model discloses a filter equipment is used in laboratory through setting up double-deck funnel into inside and outside two-layer funnel to the cross through-hole that the hole equals has been equipartited on the internal lateral wall of inner funnel, has also protected filter paper not damaged when having guaranteed the filter effect, has improved the coarse filtration effect of sample. The inner funnel body is provided with rapid filter paper, and after a sample is poured into the double-layer funnel, solid matters can be deposited at the bottom of the inner funnel body; after the vacuum circulating pump is started, liquid in the sample enters the liquid drainage channel through the filter paper and the cross-shaped through holes in the inner funnel body, and power can be provided for the sand core filter and the double-layer funnel through the vacuum pump, so that the overall filtering speed is greatly increased.

Drawings

Fig. 1 is the utility model discloses a filter equipment's schematic diagram is used in laboratory.

Fig. 2 is a schematic view of the overlooking structure of the double-layer filter funnel of the present invention.

Illustration of the drawings:

1. a double-layer funnel; 11. a cross-shaped through hole; 12. an inner funnel body; 13. an outer layer funnel body; 14. an outer layer funnel tube; 2. grinding a joint; 3. a fixing clip; 4. a sand core filter; 41. a flow guide pipe; 42. an air exhaust pipe; 5. a bottle is received.

Detailed Description

The invention will be further described with reference to the drawings and specific preferred embodiments without limiting the scope of the invention.

Examples

As shown in fig. 1 and fig. 2, the utility model discloses a filter equipment is used in laboratory includes: double-deck funnel 1, the bottom and the mill mouthful of 1 funnel of double-deck funnel carry out detachable sealing connection with joint 2. The lower part of the grinding joint 2 is provided with a sand core filter 4, and the grinding joint 2 and the sand core filter 4 are hermetically connected through a fastening device. The top of the sand core filter 4 is provided with a liquid phase filtering membrane with the aperture of 0.45 mu m, the lower part of the sand core filter 4 is provided with a receiving bottle 5, and the sand core filter 4 is hermetically connected with the receiving bottle 5. After the sample to be filtered is roughly filtered by the quick filter paper in the double-layer funnel 1, the sample flows into the sand core filter 4 through the ground joint 2, and flows into the receiving bottle 5 for collection after being filtered by the liquid phase filter membrane arranged on the sand core filter 4. Further, in the present embodiment, the sand core filter 4 is provided with an air exhaust pipe 42 for connecting with a vacuum pump (not shown in the figure), and the air exhaust pipe 42 is connected with the vacuum pump through a rubber hose. In this embodiment, the sand filter 4 is further provided with a flow guide tube 41, and the flow guide tube 41 extends into the receiving bottle 5 and has a gap with the bottom of the receiving bottle 5. The filtered liquid flows into the receiving bottle 5 through the guide pipe 41 to be collected, so that the liquid is prevented from splashing in the receiving bottle 5.

In this embodiment, connect 2, husky core filter 4 and receiving bottle 5 through connecting gradually the setting with double-deck funnel 1, mill's mouth, have that the principle is simple, easy dismounting's advantage. Carry out detachable sealing connection through the bottom with double-deck funnel 1 and ground joint 2, realized double-deck funnel 1's quick assembly disassembly, and the quick replacement filter paper of being convenient for. Realize through fastener that the mill mouthful connects 2 and husky core filter 4's the sealing connection that can dismantle, be convenient for carry out husky core filter 4 top liquid phase filter membrane's quick replacement. With husky core filter 4 and vacuum pump connection, effectively avoided the risk that the filtrating in the suction filtration in-process receiving flask 5 was taken out, improved filterable stability. Through the cooperation of the double-layer filter funnel 1 and the sand core filter 4, coarse filtration is realized, fine filtration is realized, a good filtering effect is achieved, the purity of a sample is greatly improved, the complex process of multiple filtration is avoided, and the working efficiency is improved.

In this embodiment, the double-layer funnel 1 includes an inner funnel and an outer funnel, the inner funnel includes an inner funnel body 12 with regularly arranged through holes, the outer funnel includes an outer funnel body 13 and an outer funnel pipe 14, the inner funnel body 12 is nested in the outer funnel body 13, and a liquid discharge channel is formed between the inner funnel and the outer funnel. Adopt the structural style of inside and outside two-layer funnel, be convenient for realize solid, the liquid quick separation in the sample, the solid is blockked in inlayer funnel body 12, and liquid then passes inlayer funnel body 12 and gets into the flowing back passageway, then flows into husky core filter 4, carries out the liquid phase and filters, improves liquid purity.

As shown in fig. 2, in the present embodiment, the inner funnel body 12 is provided with cross through holes 11 having equal pores, and the pores of the cross through holes 11 are 1 mm. The solid and liquid in the sample are rapidly separated through the cross-shaped through hole 11, and the liquid sequentially passes through the filter paper and the cross-shaped through hole 11, namely enters a liquid discharge channel between the inner-layer funnel body 12 and the outer-layer funnel body 13, so that the solid and liquid separation efficiency is accelerated.

In this embodiment, the bottom outside of outer funnel pipe 14 is equipped with the dull polish, and outer funnel pipe 14 passes through the dull polish and grinds mouthful and connect 2 sealing connection, has realized the swift equipment between double-deck funnel 1 and the mill mouthful joint 2.

In this embodiment, set up to inside and outside two-layer funnel through with double-deck funnel 1 to the cross through-hole 11 that the pore equals has evenly been distributed on the 12 lateral walls of inlayer funnel body, also protects filter paper not damaged when having guaranteed the filter effect, has improved the coarse filtration effect of sample. Filter paper is arranged on the inner layer funnel body 12, and after the sample is poured into the double-layer funnel 1, solid matters can be deposited at the bottom of the inner layer funnel body 12; after the vacuum circulating pump is started, liquid in the sample enters the liquid discharge channel through the filter paper and the cross-shaped through hole in the inner funnel body 12. The vacuum pump can provide power for the sand core filter 4 and the double-layer funnel 1 at the same time, so that the integral filtering speed is greatly accelerated.

As shown in fig. 1, in the present embodiment, the fastening device connecting the sanding joint 2 and the sand filter 4 is a spring clip 3. It will be appreciated that in other embodiments, other configurations of fastening means may be used, as long as a quick-release and sealing connection of the burr fitting 2 to the sand filter 4 is achieved.

In this embodiment, the outside of husky core filter 4 and the inboard of receiving bottle 5 bottleneck all are equipped with the dull polish, through the dull polish in husky core filter 4 outside and the inboard dull polish cooperation of receiving bottle 5 bottleneck to realize sealing connection. By adopting the mode of connecting the ground openings, the sealing performance between the sand core filter 4 and the receiving bottle 5 is ensured, and the quick assembly, cleaning and maintenance of the sand core filter 4 and the receiving bottle 5 are realized.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. Those skilled in the art can make numerous changes and modifications to the disclosed embodiments, or modify equivalent embodiments, without departing from the spirit and scope of the invention, using the methods and techniques disclosed above. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments by the technical entity of the present invention all still belong to the protection scope of the technical solution of the present invention.

Claims (8)

1. A filter device for a laboratory, comprising: the bottom of the double-layer funnel (1) is detachably and hermetically connected with the ground joint (2); the lower part of the grinding joint (2) is provided with a sand core filter (4), and the grinding joint (2) is hermetically connected with the sand core filter (4) through a fastening device; the top of husky core filter (4) is equipped with liquid phase filtration membrane, the lower part of husky core filter (4) is equipped with receiving flask (5), husky core filter (4) and receiving flask (5) sealing connection, be equipped with on husky core filter (4) and be used for exhaust tube (42) be connected with the vacuum pump.

2. The laboratory filter device according to claim 1, wherein the double-layer funnel (1) comprises an inner funnel and an outer funnel, the inner funnel comprises an inner funnel body (12) with regularly arranged through holes, the outer funnel comprises an outer funnel body (13) and an outer funnel pipe (14), the inner funnel body (12) is nested in the outer funnel body (13), and a liquid discharge channel is formed between the inner funnel body and the outer funnel body.

3. The filter device for the laboratory according to claim 2, wherein the inner funnel body (12) is provided with cross through holes (11) with equal pores, and the pores of the cross through holes (11) are 1 mm-3 mm.

4. The laboratory filter device as claimed in claim 2, characterized in that the outer funnel (14) is provided with a sanding on the outside at the bottom, and the outer funnel (14) is connected in a sealing manner to the sanding joint (2) by the sanding.

5. The laboratory filter of any one of claims 1 to 4, wherein: the fastening device is a spring clip (3).

6. The laboratory filter device according to any of the claims 1 to 4, characterized in that the sand core filter (4) is further provided with a flow guide tube (41), and the flow guide tube (41) extends into the receiving bottle (5) and has a gap with the bottom of the receiving bottle (5).

7. The laboratory filter of any one of claims 1 to 4, wherein: and an air exhaust pipe (42) of the sand core filter (4) is connected with a vacuum pump through a rubber hose.

8. The laboratory filter of any one of claims 1 to 4, wherein: the outside of husky core filter (4) and the inboard of receiving bottle (5) bottleneck all are equipped with the dull polish, through the dull polish in husky core filter (4) outside and the inboard dull polish cooperation of receiving bottle (5) bottleneck to realize sealing connection.

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