CN2763260Y - Porous and concave-convex type modified filter medium - Google Patents

Abstract

The utility model discloses a porous multi-cavity convex-concave modified filter material, which is made of pottery clay or china clay into a spherical body or a square body, and the spherical body or the square body is provided with through holes (2) which are separated from each other or connected to each other. Its surface is provided with convex bodies (3), concave bodies (4) and grooves (5) spaced apart from each other, so that it forms a mesh body with multiple cavities inside and convex and concave surfaces, so it has a large specific surface area. The cross turbulence state can be formed during the biological treatment, which can increase the film-hanging speed of the filter material, change the hydraulic condition of the filter material, improve the biological treatment effect, and reduce the biological treatment cost.

Description

A porous multi-cavity convex-concave modified filter material

Technical field

The utility model relates to a biological treatment filter material, in particular to a porous multi-cavity convex-concave modified filter material with high film-hanging speed and good hydraulic conditions.

Background technique

At present, activated carbon, spherical ceramsite, porcelain sand, etc. are often used as biofilm carriers for biological treatment in biological aerated filters. These fillers have low strength, high filler accumulation, and large backwash loss. The retention time of cross-hanging film in water is short, and its use in the existing market cannot meet the needs of filter materials used in biological aerated filters. Therefore, the cost of biological treatment is relatively high, and the treatment effect is not very good.

Technical content

Aiming at the above-mentioned problems of using activated carbon, spherical ceramsite, and porcelain sand as filter materials for biological treatment with high production cost and poor treatment effect, the utility model provides a high-strength, good hydraulic condition and low biological treatment cost. Porous multi-cavity convex-concave modified filter material with good treatment effect.

The purpose of the utility model is achieved in that it is made of low-priced pottery clay or china clay as a modified filter material, the modified filter material can be formed by a single filter material body, and its shape is spherical or square The modified filter material can also be formed by a plurality of spheroidal body filter bodies connected to each other in a quincunx shape, and the spheroid or square body is provided with through holes that are separated from or connected to each other, and the spheroid or square body surface is provided with The convex or concave bodies spaced apart from each other are provided with grooves on the surface of the spherical body or the square body.

The spherical body of the utility model can be a solid body or a hollow body; the through hole can be a round hole or a square hole; .

Since the utility model is provided with through holes spaced apart or connected to each other on its spherical body or square body, convex bodies or concave bodies spaced apart from each other are provided on its surface, and grooves are provided on its surface to form an internal The multi-cavity, convex-convex mesh body has a large specific surface area, which can form a cross turbulent state during biological treatment, which can increase the film-hanging speed of the filter material, change the hydraulic conditions of the filter material body, and improve the efficiency of biological treatment. The effect is to reduce the cost of biological treatment.

Description of drawings

Fig. 1 is the schematic diagram of the cross-sectional structure of the first single solid spherical body of the utility model,

Fig. 2 is a schematic diagram of the cross-sectional structure of the second single hollow spherical body of the utility model,

Figure 3 is a top view of Figure 2,

Fig. 4 is a schematic diagram of the three-dimensional structure of the third single square body of the present invention,

Fig. 5 is a schematic diagram of a fourth single cube three-dimensional structure of the utility model,

Fig. 6 is a schematic diagram of the structure of the fifth type of three spherical bodies of the utility model.

In the figure, 1. Filter body 2. Through hole 3. Convex body 4. Concave body 5. Groove

Detailed ways

Example 1

In Fig. 1, the filter material body 1 is spherical and solid, with a diameter of 5-80 mm. It is made of pottery clay and porcelain clay material by PYC strengthening. There are three through holes 2 parallel to each other on the spherical body. Aperture is 1-10 millimeters, is provided with several convex bodies 3 spaced apart from each other on the spherical body surface, and convex body 3 is hemispherical body shape, also can be cylinder shape or square body, and convex body 3 diameter is 1-10 millimeter, described The convex bodies 3 are parallel to each other up and down, and left and right are staggered.

Example 2

In Fig. 2 and Fig. 3, the filter material body 1 is spherical and hollow, with a diameter of 20-80 mm. It is made of pottery clay and china clay material by PYC strengthening. There are five interpenetrating lines on the surface of the hollow sphere A longitudinal groove 5 and a transverse groove 5, a convex body 3 is arranged between the groove 5 on the surface of the hollow spherical body, and the wall thickness of the hollow spherical body is 10-30 mm.

Example 3

In Fig. 4, the filter material body 1 is in the shape of a square body with an external dimension of 50×100×300 mm. It is made of clay and porcelain clay materials and is strengthened by PYC. There are three through-type grooves 5 on the surface of the square body. Recesses 4 are arranged on the surface of the cuboid and between the grooves 5 .

Example 4

In Fig. 5, the filter material body 1 is in the shape of a square body with an external dimension of 50×100×300 mm. It is made of clay and porcelain clay materials reinforced with PYC, and there are three through-type grooves 5 on the surface of the square body. , a convex body 3 , a concave body 4 and a through hole 2 are arranged on the surface of the square body and between the grooves 5 .

Example 5

In Figure 6, the modified filter material is made of three spherical solid bodies or spherical hollow body filter bodies 1 that are bonded to each other in the shape of a plum blossom, and it can also be formed by more than three spherical solid bodies or spherical hollow body filter body 1. The quincunx shapes are bonded to each other to form a conjoined modified filter material, and convex bodies 3 or concave bodies 4 and grooves 5 are arranged on the surface of the spherical body.

Claims (6)

1. A porous multi-cavity convex-concave modified filter material, the modified filter material is formed by a single filter material body (1), and the shape of the filter material body (1) is spherical or square, and it is characterized in that: the The modified filter material can also be formed by connecting multiple spherical bodies in a quincunx shape, with through holes (2) spaced apart or connected to each other on the spherical body or square body, and spaced apart holes (2) on the surface of the spherical body or square body. The convex body (3) or the concave body (4) is provided with a groove (5) on the surface of the spherical body or the square body. 2. A porous multi-cavity convex-concave modified filter material according to claim 1, characterized in that: said through holes (2) can be round holes or square holes, and are arranged parallel to or cross each other. 3. A porous multi-cavity convex-concave modified filter material according to claim 1, characterized in that: said convex body (3) or concave body (4) is hemispherical or cylindrical. 4. A porous multi-cavity convex-concave modified filter material according to claim 1, characterized in that: the spherical body can be a solid body or a hollow body. 5. A porous multi-cavity convex-concave modified filter material according to claim 1 or 3, characterized in that: said convex bodies (3) or concave bodies (4) are arranged alternately or parallel to each other at intervals. 6. The porous multi-cavity convex-concave modified filter material according to claim 1, characterized in that: the grooves (5) are arranged vertically or/and horizontally.

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