CN219002122U - Filtering device for solid-liquid separation - Google Patents

Abstract

The utility model relates to the technical field of filter devices, in particular to a filter device for solid-liquid separation, comprising three filter units stacked from top to bottom, the filter unit includes a filter basket, the filter basket has a porous bottom surface and a shell body, the top of the filter basket is provided with a filter layer, the lower end of the housing is provided with a through groove, and a movable plate is provided through the through groove, and the movable plate can move to completely cover the porous bottom surface, and the three The filter hole shapes of the filter layers of the filter unit are different. The first filter plate is arranged on the filter basket on the top layer, the second filter plate is arranged on the filter basket in the middle position, and the third filter plate is arranged on the uppermost filter basket. On the filter basket at the bottom, the utility model realizes multiple filtration for suspensions of different types and properties by setting filter plates with different filter hole structures.

Description

A filter device for solid-liquid separation

technical field

The utility model relates to the technical field of filtering devices, in particular to a filtering device for solid-liquid separation.

Background technique

Solid-liquid separation is a very important unit operation and an important part of heterogeneous phase separation. It is widely used in various sectors of the national economy such as chemical industry, pharmaceuticals, energy and environmental protection. The purpose of solid-liquid separation is to recover the useful substances in the suspension, which can be one phase or two phases in the suspension. The main operation methods adopted for the purpose of solid-liquid separation are gravity settling, centrifugal separation and filtration.

Filtration is a method in which a certain porous substance is used as a medium. Under the action of an external force, the solid particles in the suspension are trapped, and the liquid phase flows out through the pores of the medium to achieve solid-liquid separation. The external force can be gravity, centrifugal force and pressure difference exerted on the upstream and downstream sides of the porous substance by mechanical means. Common tools for laboratory filtration include: disposable syringe filters and funnels.

At present, the filter device used in the laboratory to filter the suspension is generally a whole filter device, such as a funnel, which can only perform a single filter at a time. For solutions with complex components or different sizes of solute particles, it will lead to inaccurate filtration. completely. Therefore, in view of the above problems, the utility model proposes a reagent filtering device to solve the problem of incomplete or insufficient single filtering of complex solutions.

Utility model content

The purpose of this utility model is to provide a filter device for solid-liquid separation, so as to solve the problem of insufficient single filter in the above-mentioned background technology.

In order to achieve the above object, the utility model adopts the following technical solutions:

A filter device for solid-liquid separation, comprising several filter units stacked from top to bottom.

The filter unit includes a filter basket, the filter basket has a porous bottom surface and a shell fixed around the outer wall of the porous bottom surface, the upper end of the shell is provided with a filter layer, and the lower end of the shell is opened with a through groove, which runs through the The through groove is provided with a movable plate, and the movable plate can move to completely cover the porous bottom surface.

Preferably, there are three filter units, namely a top filter unit, a middle filter unit and a bottom filter unit, and the filter holes of the filter layers of the three filter units have different filter hole shapes.

Preferably, the filter layer set in the top filter unit is the first filter plate, and the filter holes on the first filter plate are rectangular holes; the filter layer set in the middle filter unit is the second filter plate. In the filter plate, the filter holes provided on the second filter plate are circular holes, and the size of the filter holes on the third filter plate is smaller than the rectangular holes and the circular holes.

Preferably, a frame is provided around the outer periphery of the filter layer, and the outer surface of the frame is in contact with the inner wall of the casing.

Preferably, the lower end of the shell of the bottom filter unit is provided with a connecting pipe, and the connecting pipe communicates with the inside of the filter basket.

Preferably, a handle is provided at one end of the movable plate outside the housing.

Preferably, the outer cover of the movable plate is provided with a sealing sleeve.

Preferably, a concave portion is provided on the outer surface of the upper end of the housing, and a convex portion is provided on the lower end of the housing close to the outer surface, and the concave portion adjacent to the filter unit is matched with the convex portion.

Preferably, an elastic sealing ring is detachably provided on the outside of the connection between adjacent filter units.

Compared with the prior art, the utility model has the following beneficial effects:

The filter basket designed by the utility model can be used alone to realize the filtration of a suspension, or multiple filter baskets can be stacked and used together. The filter frames with the same filter hole shape can achieve the purpose of multiple filtration , Choose the combination of filter frames with different filter hole shapes to achieve the purpose of multiple filtration and separate solid impurities with different particle sizes.

In addition, filter papers of different types and properties can be placed on filter plates with different filter hole shapes. According to the properties of the solvent and solid impurities in the filtered suspension, different types of filter paper can be selected to cooperate with filter plates with different filter hole shapes to achieve more accurate and efficient filtration purposes.

Description of drawings

Fig. 1 is a three-dimensional structural schematic diagram of the overall structure of the present utility model.

Fig. 2 is a schematic front sectional view of the overall structure of the utility model.

Fig. 3 is a schematic structural diagram of the first filter plate in the present invention.

Fig. 4 is a schematic structural diagram of the second filter plate in the present invention.

Fig. 5 is a schematic structural diagram of the third filter plate in the present invention.

In the figure: 1-filter basket, 2-housing, 201-recessed part, 202-protruded part, 3-filter layer, 4-movable plate, 5-sealing sleeve, 6-elastic sealing ring, 7-connecting pipe, 8-through slot, 9-handle, 10-rectangular hole, 11-round hole, 12-first filter plate, 13-second filter plate, 14-third filter plate, 15-filter hole, 16-frame.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", Orientation indicated by "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. Or the positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be configured in a specific orientation, and operation, and therefore cannot be construed as a limitation of the utility model.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present utility model, "plurality" means two or more, unless otherwise specifically defined.

A filter device for solid-liquid separation, as shown in Figures 1-5, includes three filter units stacked from top to bottom, specifically including a top filter unit, a middle filter unit and a bottom filter unit with the same structure.

The filter unit comprises a filter basket 1, the filter basket 1 has a porous bottom surface and a housing 2, a filter layer 3 is arranged on the top of the filter basket 1, and a frame 16 is arranged around the periphery of the filter layer 3, the outer surface of the frame 16 is in contact with the inner wall of the housing 2 Contact, the shape of the filter hole of the filter layer 3 of the three filter units is different, the first filter plate 12 is arranged on the filter basket 1 of the top layer, the second filter plate 13 is arranged on the filter basket 1 in the middle position, and the third filter plate 14 is arranged on the filter basket 1 at the bottom. The lower end of the side shell 2 of the filter basket 1 is provided with a through groove 8, and a movable plate 4 is provided through the through groove 8. The movable plate 4 can move the filter basket 1, and the movable plate 4 is located in the One end outside the filter basket 1 is provided with a handle 9 .

For single filtration, take a filter unit, slide the movable plate 4 into the filter basket 1, block the inside of the filter basket 1, the liquid cannot flow down from the movable plate 4, and then pour the suspension to be filtered from the top of the filter basket 1 , the filtrate passes through the rear filter layer 3 and reaches the movable plate 4.

If you want to filter multiple times, take the top filter unit, the middle filter unit and the bottom filter unit, and stack them from top to bottom. The filter holes of the filter layer 3 of the three filter units have the same shape, and pull the handles of the top filter unit and the middle filter unit. 9. Drive the movable plate 4 to slide towards the filter basket 1, pour the suspension to be filtered from the top of the filter basket 1 of the top filter unit, so that the filtrate is filtered step by step and descends into the filter basket 1 of the bottom filter unit.

Further, the filter layer 3 provided in the top filter unit is the first filter plate 12, and the filter hole on the first filter plate 12 is a rectangular hole 10; the filter layer 3 provided in the middle filter unit is the second filter plate 13, and the The filter hole that is provided with on the second filter plate 13 is circular hole 11, and the size of filter hole 15 on the 3rd filter plate 14 is less than rectangular hole 10 and circular hole 11, and the side length of the hole of rectangular hole 10 is about 4～5cm , the hole diameter of the circular hole 11 is about 3-5cm, and the filter hole 15 is a rectangular hole with a side length of about 1-2cm or a diameter of about 0.5-1cm. When the liquid is filtered, the top filter unit, the middle filter unit and the bottom filter unit are stacked from top to bottom, and the handle 9 of the top filter unit and the middle filter unit is pulled to drive the movable plate 4 to slide towards the filter basket 1, and the The solution is poured from the top of the filter basket 1 of the top filter unit, so that the filtrate is filtered step by step and descends into the filter basket 1 of the bottom filter unit. The shape and size are different, so particles of different particle sizes and shapes can be separated, and the liquid top filter unit to the middle filter unit and then to the bottom filter unit realizes multiple filtration.

Further, the side casing 2 of the filter basket 1 of the top filter unit, the middle filter unit or the bottom filter unit is provided with a connecting pipe 7 near the outer surface of the bottom end, and the connecting pipe 7 communicates with the inside of the filter basket 1, and the connecting pipe 7 is used for When connecting to a vacuum pump, turn on the vacuum pump to filter the solution, which can accelerate the filtration effect.

Further, the outer cover of the movable plate 4 is provided with a sealing sleeve 5, and the material of the sealing sleeve 5 is a rubber sleeve, which neither blocks the sliding of the sliding plate 4, but also has a sealing effect, preventing the seepage of the solution in the filter basket 1.

Further, the outer surface of the upper end of the housing 2 is provided with a recessed part 201, and the lower end of the housing 2 is provided with a raised part 202 near the outer surface. Cooperating with the protruding part 202, the three filter baskets 1 are stacked up and down to realize multiple filtration of the solution.

Further, an elastic sealing ring 6 is detachably arranged on the outside of the connection of the filter units, which ensures the sealing between the filter units and improves the filtration efficiency.

The above disclosures are only specific embodiments of the present utility model, but the embodiments of the present utility model are not limited thereto, and any changes conceivable by those skilled in the art shall fall within the protection scope of the present utility model.

Claims (9)

1. A filtering device for solid-liquid separation is characterized in that: comprises a plurality of filter units which are stacked from top to bottom;

the filtering unit comprises a filtering basket (1), the filtering basket (1) is provided with a porous bottom surface and a shell (2) fixed around the outer wall of the porous bottom surface, a filtering layer (3) is arranged at the inner upper end of the shell (2), a through groove (8) is formed in the lower end of the shell (2), a movable plate (4) penetrates through the through groove (8), and the movable plate (4) can move to completely cover the porous bottom surface.

2. The filtration device for solid-liquid separation according to claim 1, wherein: the number of the filtering units is three, namely a top filtering unit, a middle filtering unit and a bottom filtering unit, and the filtering holes of the filtering layers (3) of the three filtering units are different in shape.

3. The filtration device for solid-liquid separation according to claim 2, wherein: the filter layer (3) arranged in the top layer filter unit is a first filter plate (12), and filter holes on the first filter plate (12) are rectangular holes (10); the filter layer (3) arranged in the middle layer filter unit is a second filter plate (13), the filter holes arranged on the second filter plate (13) are round holes (11), and the size of the filter holes (15) on the third filter plate (14) is smaller than that of the rectangular holes (10) and the round holes (11).

4. The filtration device for solid-liquid separation according to claim 2, wherein: a frame (16) is arranged around the periphery of the filter layer (3), and the outer surface of the frame (16) is contacted with the inner wall of the shell (2).

5. The filtration device for solid-liquid separation according to claim 2, wherein: the lower end of the shell (2) of the bottom layer filtering unit is provided with a connecting pipe (7), and the connecting pipe (7) is communicated with the inside of the filtering basket (1).

6. The filtration device for solid-liquid separation according to claim 1, wherein: one end of the movable plate (4) positioned outside the shell (2) is provided with a handle (9).

7. The filtration device for solid-liquid separation according to claim 1, wherein: the outside of the movable plate (4) is sleeved with a sealing sleeve (5).

8. The filtration device for solid-liquid separation according to claim 1, wherein: the outer surface of the upper end of the shell (2) is provided with a concave part (201), the outer surface of the lower end of the shell (2) is provided with a convex part (202), and the concave part (201) of the adjacent filtering unit is matched and clamped with the convex part (202).

9. The filtration device for solid-liquid separation according to claim 8, wherein: an elastic sealing ring (6) is detachably arranged at the outer part of the connecting part of the adjacent filtering units.

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