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

Abstract

The utility model relates to the technical field of filtering devices, in particular to a filtering device for solid-liquid separation, which comprises three filtering units, wherein the three filtering units are arranged in a stacked manner from top to bottom, each filtering unit comprises a filtering basket, each filtering basket is provided with a porous bottom surface and a shell, the top of each filtering basket is provided with a filtering layer, the lower end of each shell is provided with a through groove, a movable plate is arranged through each through groove and can move to completely cover the porous bottom surface, the filtering holes of the filtering layers of the three filtering units are different in shape, the first filtering plates are arranged on the filtering basket on the topmost layer, the second filtering plates are arranged on the filtering basket in the middle position, and the third filtering plates are arranged on the filtering basket on the bottommost layer.

Description

Filtering device for solid-liquid separation

Technical Field

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

Background

The solid-liquid separation is a very important unit operation and an important component part of heterogeneous separation, and is widely applied to various departments of national economy such as chemical industry, pharmacy, energy source, environmental protection and the like. The purpose of the solid-liquid separation is to recover the useful material in suspension, either as one or two phases in suspension. The main operation methods adopted for achieving the purpose of solid-liquid separation are gravity sedimentation, centrifugal separation and filtration.

The filtration is a method for realizing solid-liquid separation by taking a certain porous substance as a medium, intercepting solid particles in suspension under the action of external force and flowing out liquid phase through a pore canal of the medium. The external force may be gravity, centrifugal force, or a pressure difference mechanically applied to both the upstream and downstream sides of the porous substance. Common tools in laboratory filtration are: disposable needle filters and funnels, etc.

At present, a filtration device used in laboratory filtration of a suspension is generally an integral filtration device, such as a funnel, and can only perform single filtration at a time, and filtration of solutions with complex components or different solute particle sizes can result in incomplete filtration. Therefore, the utility model provides a reagent filtering device aiming at the problems, and solves the problems that the single filtering of complex solution is incomplete or insufficient.

Disclosure of Invention

The utility model aims to provide a filtering device for solid-liquid separation, which solves the problem of insufficient single filtering in the prior art.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

a filtering device for solid-liquid separation comprises a plurality of filtering units which are stacked from top to bottom.

The filter unit comprises a filter basket, the filter basket is provided with a porous bottom surface and a shell body which surrounds the outer wall of the porous bottom surface and is fixed, a filter layer is arranged at the inner upper end of the shell body, a through groove is formed in the lower end of the shell body, a movable plate penetrates through the through groove, and the movable plate can move to completely cover the porous bottom surface.

Preferably, 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 of the three filtering units are different in shape.

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

Preferably, a rim is provided around the periphery of the filter layer, the outer surface of the rim being in contact with the inner wall of the housing.

Preferably, a connecting pipe is arranged at the lower end of the shell of the bottom layer filtering unit, and the connecting pipe is communicated with the inside of the filtering basket.

Preferably, a handle is arranged at one end of the movable plate, which is positioned outside the casing.

Preferably, the movable plate is externally sleeved with a sealing sleeve.

Preferably, the outer surface of the upper end of the shell is provided with a concave part, the lower end of the shell is provided with a convex part close to the outer surface, and the concave parts of the adjacent filter units are matched and clamped with the convex parts.

Preferably, the outer parts of the connecting parts of the adjacent filter units are detachably provided with elastic sealing rings.

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

the filter basket designed by the utility model can be used independently to realize the filtration of a suspension, a plurality of filter baskets can be stacked and matched for use, the filter frames have the same shape of filter holes, the purpose of multiple filtration can be achieved, the filter frames with different filter hole shapes are selected for combination, the purpose of multiple filtration can be realized, and solid impurities with different particle sizes are separated.

In addition, filter papers with different types and properties can be placed on the filter plates with different filter hole shapes, and the filter papers with different types and the filter plates with different filter hole shapes can be selected to be matched with each other according to the properties of the solvent and the solid impurities in the filtered suspension, so that the purpose of more accurate and efficient filtration is achieved.

Drawings

Fig. 1 is a schematic perspective view of the whole structure of the present utility model.

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

Fig. 3 is a schematic view of a first filter plate structure according to the present utility model.

Fig. 4 is a schematic diagram of a second filter plate structure according to the present utility model.

Fig. 5 is a schematic view of a third filter plate structure according to the present utility model.

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

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

The utility model provides a filter equipment for solid-liquid separation, see fig. 1-5, includes three filter units of range upon range of setting from the top down, specifically includes the top layer filter unit, middle layer filter unit and bottom layer filter unit that the structure is the same.

The filter unit includes filter basket 1, filter basket 1 has porous bottom surface and casing 2, filter basket 1 top is equipped with filter layer 3, be equipped with frame 16 around filter layer 3's periphery, the surface of frame 16 contacts with casing 2 inner wall, the filtration pore shape of three filter unit's filter layer 3 is different, first filter 12 sets up on the filter basket 1 of topmost layer, second filter 13 sets up on the filter basket 1 of intermediate position, third filter 14 sets up on the filter basket 1 of bottommost, logical groove 8 has been seted up to filter basket 1's side casing 2 lower extreme, it is equipped with fly leaf 4 to run through logical groove 8, fly leaf 4 can move about with filter basket 1, the one end that fly leaf 4 is located outside filter basket 1 is provided with handle 9.

If the filtration is carried out once, a filter unit is taken, the movable plate 4 slides into the filter basket 1, the inside of the filter basket 1 is blocked, liquid cannot flow down from the movable plate 4, then suspension to be filtered is poured in from the top end of the filter basket 1, and the filtrate passes through the rear filter layer 3 and reaches the movable plate 4.

If multiple times of filtration is needed, a top layer filter unit, a middle layer filter unit and a bottom layer filter unit are stacked from top to bottom, the filter holes of the filter layers 3 of the three filter units are identical in shape, the handles 9 of the top layer filter unit and the middle layer filter unit are pulled, the movable plate 4 is driven to slide towards the filter basket 1, and suspension to be filtered is poured from the top end of the filter basket 1 of the top layer filter unit, so that the filtrate is filtered step by step and descends into the filter basket 1 of the bottom layer filter unit.

Further, a 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, the size of a filter hole 15 on a third filter plate 14 is smaller than that of a rectangular hole 10 and the round hole 11, the side length of the hole of the rectangular hole 10 is about 4-5 cm, the diameter of the hole of the round hole 11 is about 3-5 cm, the filter hole 15 is a rectangular hole with the side length of about 1-2 cm or is about 0.5-1 cm in diameter, when the suspension with different particle sizes is filtered, the top layer filter unit, the middle layer filter unit and the bottom layer filter unit are stacked from top to bottom, the handle 9 of the top layer filter unit and the middle layer filter unit is pulled, the movable plate 4 is driven to slide to the filter basket 1, and the solution to be filtered is poured into the filter basket 1 of the top layer filter unit from top, so that the filtrate is filtered step by step and falls into the filter basket 1 of the bottom layer filter unit, and the different shapes and sizes of the first filter plate 12, the middle layer filter unit and the third filter plate 14 can be separated from the different particle sizes to the bottom layer filter unit, and the multiple particle size filter units are realized.

Further, the side casing 2 of the filtering basket 1 of the top filtering unit, the middle filtering unit or the bottom filtering unit is provided with a connecting pipe 7 near the outer surface of the bottom end, the connecting pipe 7 is communicated with the inside of the filtering basket 1, the connecting pipe 7 is used for connecting a vacuum pump, and the vacuum pump is started to filter the solution when the solution is filtered, so that the filtering effect can be accelerated.

Further, the outside cover of fly leaf 4 is equipped with seal cover 5, and the material of seal cover 5 is the rubber sleeve, neither blocks the slip of fly leaf 4, also plays sealed effect, has prevented the exudation of the solution in the filter basket 1.

Further, the outer surface of the upper end of the shell 2 is provided with a concave part 201, the lower end of the shell 2 is provided with a convex part 202 close to the outer surface, the concave parts 201 of the adjacent filter units are matched and clamped with the convex parts 202, and the three filter baskets 1 are vertically overlapped through the mutual matching of the concave parts 201 and the convex parts 202, so that multiple filtration of solution can be realized.

Further, the outside of filter unit junction can be dismantled and be provided with elastic sealing washer 6, has guaranteed the leakproofness between the filter unit, has improved filtration efficiency.

The foregoing disclosure is merely illustrative of specific embodiments of the utility model, but the embodiments are not limited thereto and variations within the scope of the utility model will be apparent to those skilled in the art.

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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