TW201902556A - Filter material structure comprising a drainage layer and at least one filter layer - Google Patents

Abstract

A filter material structure can be stacked on a support member having a plurality of perforations. The filter material structure comprises a drainage layer and at least one filter layer. The drainage layer has a top surface, a bottom surface opposite to the top surface, and a plurality of drainage holes penetrating the top surface and the bottom surface. The at least one filter layer is stacked on the drainage layer in a removable manner. The at least one filter layer has a contact surface abutting against the top surface of the drainage layer, a flow receiving surface opposite to the contact surface, and a plurality of filter holes penetrating the contact surface and the flow receiving surface. Part of the drainage holes and part of the filter holes form a plurality of seepage channels connecting the flow receiving surface and the bottom surface. When the filter material structure is stacked on the support member, the seepage channels communicate with a part of the perforations of the support member so that the filter time can be reduced.

Description

Filter material structure

This invention relates to a separation of solids from a fluid, and more particularly to a structure of a filter material that separates solids from a fluid.

Referring to Figure 1, a conventional filter material structure 18 includes a plurality of holes 181 for placement on a support member 19 having a bore 191 to filter fluid, such as a fluid slurry, powder cleaning, and the like.

When the conventional filter material structure 18 is placed on the support member 19 for filtration, often most of the holes 181 are shielded by the support member 19, so that only a small portion of the holes 181 allow fluid to pass therethrough, so there is a filter time. Longer problems, in addition, when the majority of the holes 181 of the filter material structure 18 are obscured by the support member 19 and the filtration time is too long, the filter material structure 18 itself is easily softened and needs to be replaced frequently.

Accordingly, it is an object of the present invention to provide a filter material structure that increases the number of flow paths through which fluid is circulated during filtration to reduce filtration time.

Thus, the filter material structure of the present invention can be stacked on a support having a plurality of perforations, including a drainage layer, and at least one filtration layer.

The drainage layer has a top surface, a bottom surface opposite to the top surface, and a plurality of drainage holes penetrating the top surface and the bottom surface.

The at least one filter layer may be removably stacked on the drainage layer, and has a contact surface, a flow receiving surface, and a plurality of filter holes opposite to the flow receiving surface and against the a top surface of the drainage layer, the plurality of filter holes penetrating the abutment surface and the filter hole of the flow receiving surface, and a part of the drainage hole and a part of the filter hole and a part of the perforation of the support member form a plurality of strips communicating with the flow surface The seepage channel of the bottom surface.

The utility model has the advantages that: the partial drainage hole and the partial filter hole communicate with the partial perforation of the support member without completely overlapping each other, thereby increasing the percolation passage for the filtered fluid to flow, thereby shortening the filtration time, and additionally The filter layer can be replaced separately to reduce process costs.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to Figure 2, an embodiment of the filter material structure 1 of the present invention can be stacked on a support member 17 having a plurality of perforations 171 for separating solids in a fluid. The filter material structure 1 comprises a layer. The drainage layer 11 and the at least one filtration layer 12 are illustrated by a single layer of the filtration layer 12 in this example and the drawings.

The drainage layer 11 has a top surface 111, a bottom surface 112 opposite to the top surface 111, and a plurality of drainage holes 113 penetrating the top surface 111 and the bottom surface 112.

The filter layer 12 is removably stacked on the drainage layer 11 . The at least one filter layer 12 has an abutment surface 121 against the top surface 111 of the drainage layer 11 and a surface opposite to the contact surface 121 . The flow receiving surface 122 and the plurality of filtering holes 123 passing through the abutting surface 121 and the flow receiving surface 122, the partial drainage holes 113 and the partial filtering holes 123 together form a plurality of strips communicating with the flow receiving surface 122 and the bottom surface 112. Seepage channel 124.

When the embodiment of the filter material structure 1 of the present invention is filtered, a portion of the drainage holes 113 of the drainage layer 11 and a portion of the filtration holes 123 of the at least one filtration layer 12 do not completely overlap to form the plurality of connected percolation passages 124. Therefore, the fluid can flow out from the percolation passages 124 and the perforations 171 of the support member 17 communicating with the percolation passages 124, and is discharged away from the support member 17 and the filter material structure 1, so that the filtration time can be shortened, and at the same time, Because the filtration time is shortened, the time for the filter layer 12 and the drainage layer 11 to contact the fluid is shortened, thereby not easily softening and prolonging the service life. Moreover, since the filtration layer 12 first contacts the fluid during filtration, The drainage layer 11 is more likely to be softened or even unsatisfactory by absorbing fluid. In this case, the filtration layer 12 can be directly replaced, that is, the drainage layer 11 can be reused, thereby greatly reducing the consumption of consumables.

In particular, the diameter of the drainage holes 113 of the drainage layer 11 may not be larger than the diameter of the perforations 171 of the support member 17. In addition, each drainage hole 113 of the drainage layer 11 and the filtration The diameter ratio of each of the filter holes 123 of the layer 12 is between 0.5 and 2, and a better filtering effect can be obtained. For example, the diameter of each of the drainage holes 113 of the drainage layer 11 is 2 micrometers (μm). Each filter hole 123 of the filter layer 12 has a diameter of between 4 micrometers and 1 micrometer.

Referring to FIG. 3, another embodiment of the filter material structure 1 of the present invention is similar to the above example, except that in this example, two layers of filter layers 12 are stacked on each other, and adjacent to the two filter layers 12 The filter holes 123 are not completely overlapped with the flow channels 113 of the drainage layer 11 to form a plurality of flow passages 124. In the filtration, since the uppermost layer and the filter layer 12 which is most directly in contact with the fluid to be filtered are most likely to soften and affect the seepage of the fluid, the present embodiment can easily replace the uppermost layer and the filter layer 12 which directly contacts the fluid to be filtered. In addition, the effect of accelerating the filtration, shortening the filtration time, and reducing the cost of consumables can be achieved.

In addition, it can be further noted that an adhesive layer (not shown) adhered between the filter layer 12 and the drainage layer 11 can be further adhered with, for example, a release adhesive to avoid relative displacement with each other to ensure the number of the percolation passages 124. With unobstructed.

Referring to FIG. 4, in order to more clearly illustrate the filtration effect of the filter material structure 1 of the present invention, the experiments are further intensively carried out in the control group, the experimental group 1, the experimental group 2, and the experimental group 3. The control group is a traditional single-layer filter material structure. (AVANTEC, No. 5 filter paper), the hole 181 has a diameter of 3 to 5 μm; the experimental group first selects a two-layer conventional single-layer filter material structure 1 (AVANTEC, No. 5 filter paper) as the filter layer 12 (the diameter of the filter hole 123 is 3~5 microns), drainage layer 11 (discharge hole 113 is 3~5 microns in diameter); experimental group 2 uses two different layers of traditional single-layer filter material structure 1 (AVANTEC, No. 5 filter paper, No. 1 filter paper) No. 5 as the filter layer 12 (the filter hole 123 has a diameter of 3 to 5 μm), No. 1 as the drainage layer 11 (the discharge hole 113 has a diameter of 6 to 8 μm); the experimental group 3 selects two different traditional singles. Layer filter material structure 1 (AVANTEC, No. 5 filter paper, No. 4 filter paper), No. 5 as filter layer 12 (filter hole 123 diameter is 3 to 5 microns), No. 4 as drainage layer 11 (discharge hole 113 diameter 2 ~4 microns); the support member 17 is a ceramic funnel (ie, a support layer) that is perforated under the filter paper.

Referring to FIG. 5, the auxiliary filtering device 13 includes a vacuum pump 14, a collecting bottle 15, and a pressure gauge 16 for measuring the pressure value in the collecting bottle 15, and the vacuum filtering device is directly connected to the atmosphere when the measurement has not started yet. The vacuum pump 14 is activated, and the pressure value in the collection bottle 15 that passes through the atmosphere is measured by the pressure gauge 16, and the measured pressure value is 991 mbar; the experimental fluid for the experiment is 20 g of carbon powder (carbon particle size distribution at 20 μm, 29.2 μm, and 41 μm) was mixed with 200 g of distilled water and 0.1 g of the surfactant to stir for 2 hours.

In the experiment, the control group, the experimental group 1, the experimental group 2, and the experimental group are respectively placed in a ceramic funnel, and the uniformly stirred slurry is poured into the filter, and the filtered fluid flows out to the collecting bottle 15, The time required for the measurement and the pressure value displayed by the pressure gauge 16 until the slurry is completely filtered; the experimental results are listed below:

It can be proved from the experimental results that under the same experimental conditions, the seepage channel 124 of the experimental group 1, the experimental group 2 and the experimental group 3 is obviously more than the control group, and the filtration time is shorter; and, because the experimental group 1 and the experimental group 2. The seepage channel 124 of the experimental group 3 is obviously more than the control group, so the filtrate accumulation condition is much lower than that of the control group. Therefore, the vacuum of the collection bottle 15 of the control group is higher than that of the control group (the lower the pressure value after filtration) , indicating higher vacuum.)

In addition, it should be noted that the above experiment one to the third experiment is to verify the filtration effect of the filter material structure of the present invention by simple two-layer filter paper stacking, but in fact, the filter layer and the drainage layer of the filter material structure of the present invention are not Limited to filter paper, it can also be other filter elements with multiple holes.

In summary, the filter material structure 1 of the present invention mainly utilizes the support of the drainage layer 11 and the stacking of at least one filter layer 12, so that the drainage holes 113 and the filter holes 123 do not completely overlap to form a plurality of seepage channels 124. In order to increase the flow path of the fluid, thereby shortening the filtration time, and because the filtration time is shortened, the time and labor cost required for the filtration can be reduced, and the filtration layer 12 can be easily softened and the overall use can be extended. Lifetime, reducing the cost of consumables, can indeed achieve the purpose of the present invention.

However, the above is only the embodiment of the present invention, and the scope of the invention is not limited thereto, and all the equivalent equivalent changes and modifications according to the scope of the patent application and the patent specification of the present invention are still The scope of the invention is covered.

1‧‧‧Filter material structure

13‧‧‧Auxiliary filtration equipment

11‧‧‧Drainage

14‧‧‧vacuum pump

111‧‧‧ top surface

15‧‧‧Collection bottle

112‧‧‧ bottom

16‧‧‧ pressure gauge

113‧‧‧Drainage holes

17‧‧‧Support

12‧‧‧Filter layer

171‧‧‧Perforation

121‧‧‧Snap surface

18‧‧‧Filter material structure

122‧‧‧ receiving surface

181‧‧‧ hole

123‧‧‧Filter holes

19‧‧‧Support

124‧‧‧ seepage channel

191‧‧‧ hole

Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: FIG. 1 is a schematic view showing a conventional filter material structure placed on a support member; FIG. 2 is a schematic view illustrating An embodiment of the filter material structure of the present invention is placed on a support member. FIG. 3 is a side view showing another embodiment of the filter material structure of the present invention placed on a support member. FIG. 4 is a schematic view showing the verification book. The invention relates to a control material structure and a control structure of the existing filter material structure, an experimental group 1, an experimental group 2, an experimental group 3; and FIG. 5 is a schematic diagram illustrating a vacuum filtration for verifying the structure of the filter material of the present invention and the existing filter material structure. device.

Claims (4)

A filter material structure that can be stacked on a support having a plurality of perforations, comprising: a drainage layer having a top surface, a bottom surface opposite to the top surface, and a plurality of through the top a drainage hole of the face and the bottom surface; and at least one filter layer removably stacked on the drainage layer, the at least one filter layer having a contact surface against the top surface of the drainage layer, and a reverse The flow receiving surface of the abutting surface, and the plurality of filtering holes penetrating the abutting surface and the flow receiving surface, the partial drainage hole and the partial filtering hole form a plurality of percolation passages connecting the flow receiving surface and the bottom surface. The filter material structure of claim 1, wherein the isotonic flow channel is in communication with a portion of the support member. The filter material structure according to claim 1, wherein a diameter ratio of each of the drainage holes of the drainage layer to each of the filter holes of the filtration layer is between 0.5 and 2. The filter material structure of claim 1, further comprising an adhesive layer interposed between the top surface of the drainage layer and the abutment surface of the filtration layer, and does not shield the isotonic flow channel.