Combined filter material

Abstract

The utility model belongs to the field of filter materials, and particularly relates to a combined filter material which is characterized in that inclined side plates are symmetrically arranged on the side edges of a back plate, an upper transverse frame and a lower transverse frame are respectively formed at the upper part and the lower part of each side plate, and bolt pieces penetrate through screw holes formed in the upper transverse frame and the lower transverse frame; a filter layer group with filter gaps reduced layer by layer is clamped among the upper transverse frame, the side plates and the lower transverse frame; the combined filter material depends on the combined design of the supporting mechanism and the filter material mechanism, preliminary layered filtration is carried out in the filter layer group of the supporting mechanism, different particle impurities are filtered out and intercepted in the filter layer group, and then secondary filtration is carried out through the filter material piece, so that the problem that the surface layer of the high-filter-precision filter material piece is easily blocked due to large particle impurities is solved, and the service life of the filter material piece is prolonged. The filtering smoothness is kept. The filter material piece is detachably designed and can be conveniently and rapidly replaced, after the filter material piece is replaced, the filter material piece before and after replacement can be stably retained in the clamping gap through downward pressing of the inclined plate, the supporting plate and the filter layer set, and filtering use is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of filter media, and particularly relates to a combined filter media. Background Art

[0002] Filter media are mainly divided into two categories. One category is granular materials used for inlet filtration in water treatment equipment, usually including quartz sand, gravel, anthracite, cobblestone, manganese sand, magnetite filter media, fruit shell filter media, foam filter beads, porcelain sand filter media, ceramsite, garnet filter media, medical stone filter media, sponge iron filter media, activated alumina balls, zeolite filter media, volcanic rock filter media, granular activated carbon, fiber balls, fiber bundle filter media, comet - type fiber filter media, etc. The other category is filtration media for physical separation, mainly including filter cloth, filter net, filter element, filter paper, and the latest membranes.

[0003] The prior art has the following problems:

[0004] 1. Conventional filter media have a one - piece structure with balanced filter gaps. When filtering, large - particle impurities block the surface filter gaps, resulting in subsequent filtration obstruction and affecting filtration efficiency.

[0005] 2. When the filter media become blocked, it is necessary to clean or replace the filter media. The one - piece filter media is inconvenient to clean and replace, resulting in an increase in filtration costs. Summary of the Utility Model

[0006] (I) Purpose of the Utility Model

[0007] To solve the technical problems in the background art, the utility model proposes a combined filter media, which has the characteristics of hierarchical treatment of filtered substances and convenient cleaning and replacement of blocked filter media.

[0008] (II) Technical Solution

[0009] To solve the above - mentioned technical problems, the utility model provides a combined filter media. Inclined side plates are symmetrically arranged on the sides of the back plate. Upper cross - frames and lower cross - frames are respectively formed at the upper and lower parts of the side plates. Bolt members penetrate through the screw holes formed on the upper cross - frames and the lower cross - frames.

[0010] A filter layer group with gradually decreasing filter gaps is clamped between the upper cross - frames, the side plates and the lower cross - frames.

[0011] The filter media mechanism includes inclined plates symmetrically installed below the lower cross - frames. A protruding support plate is installed at the bottom of the inclined plates. A filter media member is arranged between the two inclined plates.

[0012] Preferably, the filter layer group includes a first filter layer, a second filter layer, a third filter layer, and a fourth filter layer arranged in sequence along the inclined direction of the side plates.

[0013] Preferably, the first filter layer is attached to the upper cross frame, and the fourth filter layer is attached to the lower cross frame.

[0014] Preferably, the threaded structure of the bolt member sequentially penetrates through the first filter layer, the second filter layer, the third filter layer, and the fourth filter layer.

[0015] Preferably, four groups of bolt members are provided and symmetrically arranged at the corner screw holes of the upper cross frame and the lower cross frame.

[0016] Preferably, the filter media member is detachably connected to the corners of the inclined plate and the support plate, the filter media member is attached to the filter layer group, and the filter gap of the filter media member is smaller than the filter gap of the filter layer group.

[0017] The above technical solution of the present utility model has the following beneficial technical effects:

[0018] 1. The combined filter media relies on the combined design of the support mechanism and the filter media mechanism, and performs preliminary stratified filtration within the filter layer group of the support mechanism, filtering out and intercepting different particulate impurities within the filter layer group, and then performing secondary filtration through the filter media member, solving the problem that large particulate impurities are likely to cause blockage on the surface layer of the high-precision filter media member, and maintaining smooth filtration.

[0019] 2. The detachable design of the filter media member facilitates quick replacement. After the filter media member is replaced, under the pressing of the inclined plate, the support plate, and the filter layer group, the filter media members before and after replacement can be stably retained within the clamping gap, facilitating filtration use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the present utility model;

[0021] Figure 2 is a schematic cross-sectional structural diagram of the present utility model;

[0022] Figure 3 is a schematic structural diagram of the support mechanism of the present utility model;

[0023] Figure 4 is a schematic separation structural diagram of the filter layer group and the filter media member of the present utility model.

[0024] Reference Numerals:

[0025] 11, back plate; 12, upper cross frame; 13, side plate; 14, lower cross frame; 15, bolt member; 21, first filter layer; 22, second filter layer; 23, third filter layer; 24, fourth filter layer; 31, inclined plate; 32, support plate; 33, filter media member. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] To make the objectives, technical solutions, and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present utility model. In addition, in the following descriptions, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present utility model.

[0027] As Figures 1-4 shown, a combined filter medium proposed by the present utility model has inclined side plates 13 symmetrically arranged on the sides of the back plate 11. Upper cross frames 12 and lower cross frames 14 are respectively formed at the upper and lower parts of the side plates 13. Bolt members 15 penetrate through the screw holes formed on the upper cross frames 12 and the lower cross frames 14.

[0028] A filter layer group with gradually decreasing filter gaps is clamped between the upper cross frame 12, the side plates 13, and the lower cross frame 14.

[0029] The filter medium mechanism includes inclined plates 31 symmetrically installed below the lower cross frame 14. A protruding support plate 32 is installed at the bottom of the inclined plates 31. A filter medium member 33 is arranged between the two inclined plates 31.

[0030] It should be noted that: the filter layer group includes a first filter layer 21, a second filter layer 22, a third filter layer 23, and a fourth filter layer 24 sequentially arranged along the inclined direction of the side plate 13; the filter gaps between the respective filter layers gradually decrease. When the filtered matter passes through, large-particle impurities are first intercepted by the upper filter layer, and the un-intercepted filter medium is secondarily filtered in the middle or lower filter layer. When the filtered matter passes through, the large-particle impurities are isolated outside.

[0031] In this embodiment, the combined filter medium is designed in a combined manner relying on the support mechanism and the filter medium mechanism. Preliminary stratified filtration is carried out in the filter layer group of the support mechanism, and different particle impurities are filtered out and intercepted in the filter layer group. Subsequently, secondary filtration is carried out through the filter medium member 33. Since the filter layer group preliminarily processes the filtered matter, the problem that the surface of the high-precision filter medium member 33 is easily blocked by large-particle impurities is solved, and the filtration is kept smooth.

[0032] As an example of the installation of the filter layer group on the support mechanism: each filter layer is sequentially laid along the inclined direction of the side plate 13. The first filter layer 21 is attached to the upper cross frame 12, the fourth filter layer 24 is attached to the lower cross frame 14. The threaded structure of the bolt member 15 sequentially penetrates through the first filter layer 21, the second filter layer 22, the third filter layer 23, and the fourth filter layer 24 until the front end is screwed into the screw hole formed on the lower cross frame 14, and the four filter layers are stably installed in the support mechanism along the inclined direction of the inclined plate 13, forming a stratified filtration channel that is inclined from top to bottom.

[0033] In order to improve the stability of the filter layer group installed on the support mechanism, further, four groups of bolt members 15 are provided, symmetrically arranged at the corner screw holes of the upper cross frame 12 and the lower cross frame 14, to reinforce the connection between the filter layers at the four corners. Compared with the filter layers connected by bonding or pressing, the screw connection structure can prevent the filter layers from loosening and separating from each other.

[0034] As Figure 1 shown, the filter media member 33 is detachably connected to the corners of the inclined plate 31 and the support plate 32. The filter media member 33 is attached to the filter layer group, and the filter gap of the filter media member 33 is smaller than that of the filter layer group.

[0035] Among them, the filter media member 33 is designed to be detachable. After the filter media member 33 and the filter layer group are soiled and blocked, the filter media member 33 can be pulled out from the clamping gap between the inclined plate 31 and the support plate 32, exposing the filter layer group. The filter layer group can be cleaned by backwashing or purging, and at the same time, the filter media member 33 can be replaced. The combined design facilitates quick replacement. After the filter media member 33 is replaced, under the downward pressure of the inclined plate 31, the support plate 32 and the filter layer group, the filter media member 33 before and after replacement can be stably retained in the clamping gap, which is convenient for filtration use.

[0036] It should be understood that the above specific embodiments of the present invention are only used for exemplary illustration or explanation of the principle of the present invention, and do not constitute a limitation to the present invention. Therefore, any modifications, equivalent replacements, improvements, etc. made without departing from the spirit and scope of the present invention shall be included within the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A combined filter material, characterized in that: The side edges of the back plate (11) are symmetrically provided with inclined side plates (13), and the upper and lower parts of the side plates (13) are respectively formed with an upper cross frame (12) and a lower cross frame (14), and bolts (15) are inserted through the screw holes provided on the upper cross frame (12) and the lower cross frame (14); A filter layer group with a filter gap decreasing layer by layer is sandwiched between the upper cross frame (12), the side plate (13) and the lower cross frame (14); The filter material mechanism comprises inclined plates (31) symmetrically mounted below the lower cross frame (14), a protruding support plate (32) being mounted at the bottom of the inclined plates (31), and a filter material member (33) being arranged between the two inclined plates (31).

2. A combined filter material according to claim 1, characterized in that: The filter layer group comprises a first filter layer (21), a second filter layer (22), a third filter layer (23) and a fourth filter layer (24) which are sequentially arranged along the inclination direction of the side plate (13).

3. A combined filter material according to claim 2, characterized in that: The first filter layer (21) is attached to the upper cross frame (12), and the fourth filter layer (24) is attached to the lower cross frame (14).

4. A combined filter material according to claim 1, characterized in that: The thread structure of the bolt member (15) sequentially penetrates the first filter layer (21), the second filter layer (22), the third filter layer (23) and the fourth filter layer (24).

5. A combined filter material according to claim 1, characterized in that: The bolt members (15) are provided in four groups in total and are symmetrically arranged at the corner screw holes of the upper cross frame (12) and the lower cross frame (14).

6. A combined filter material according to claim 1, characterized in that: The filter material piece (33) is detachably connected to the corners of the inclined plate (31) and the support plate (32), the filter material piece (33) and the filter layer group are attached to each other, and the filter gap of the filter material piece (33) is smaller than the filter gap of the filter layer group.

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