CN201643988U - A non-woven tubular self-generating dynamic membrane module - Google Patents

Abstract

The utility model discloses a non-woven fabric tube-type self-generated dynamic membrane component, which comprises a non-woven fabric membrane tube, a short diversion tube, a membrane shell, an aeration device, an inner packaging plate, an outer packaging plate, a lower interface, and an upper interface. and the water collection area, the membrane shell is a cylindrical pipe, and the two ends of the membrane shell are respectively provided with an outer packaging plate and an inner packaging plate from the outside to the inside; the non-woven membrane tube is fixed on the membrane through the round hole on the inner packaging plate. Inside the casing, the short guide tube is fixed between the outer packaging plate and the inner packaging plate through the round hole on the inner packaging plate; the upper end of the membrane shell is provided with an interface between the outer packaging plate and the inner packaging plate, and the outer packaging plate and the inner packaging plate are connected at the lower end of the membrane shell. There is a water collection area between the packaging plates, and a lower interface is provided; the bottom of the membrane shell is provided with an aeration device connected with a short diversion pipe. The membrane module disclosed by the utility model has wide sources of membrane raw materials, simple manufacture of the module, low cost, convenient industrial production, no need for a suction pump for water discharge, and stable operation and treatment effect. Can achieve good social and economic benefits.

Description

A non-woven tubular self-generating dynamic membrane module

technical field

The utility model relates to a sewage treatment device, in particular to a non-woven tubular self-generated dynamic membrane component.

Background technique

Membrane bioreactors have attracted widespread attention due to their advantages such as good effluent quality, small footprint, high sludge concentration, and convenient operation. The bottleneck of large-scale application in China. Dynamic membrane technology is a technology that replaces the traditional microfiltration membrane with a large-pore mesh membrane, and uses the sludge layer formed on the surface of the membrane substrate during operation to play a intercepting role. This process retains the advantages of traditional membrane modules, and at the same time has the advantages of water discharge at low operating pressure, large permeation flux, and low maintenance requirements.

Self-generated dynamic film is a kind of dynamic film, which has the advantages of no need to add precoating agent and online generation, and most of them are flat type. Although the plate type has the advantages of simple structure and convenient manufacture, it is difficult to mass produce and backwash operation, which hinders its large-scale industrial application.

Utility model content

Purpose of the invention: Aiming at the deficiencies of the prior art, the utility model discloses a non-woven tubular self-generated dynamic membrane module which can be mass-produced and has simple backwashing.

Technical solution: The utility model discloses a non-woven tubular self-generating dynamic membrane module, including a non-woven membrane tube, a short diversion tube, a membrane shell, an aeration device, an inner packaging plate, an outer packaging plate, and a lower interface , the upper interface and the water collection area, the membrane shell is a cylindrical pipe, and the two ends of the membrane shell are respectively provided with an outer package plate and an inner package plate from the outside to the inside, and 180 to 430 round holes are arranged on the outer package plate. There are 300 to 860 round holes on the inner packaging board; the non-woven membrane tube is fixed in the membrane shell through the round holes on the inner packaging board, and the short diversion tube is fixed on the outer packaging board and the inner packaging board through the round holes on the inner packaging board. Between the packaging boards; the upper interface is set between the outer packaging board and the inner packaging board at the upper end of the membrane shell, and the lower interface is provided between the outer packaging board and the inner packaging board at the lower end of the membrane housing; the lower interface is provided at the bottom of the membrane housing. The aeration device connected with the short flow pipe.

The outer diameter of the non-woven membrane tube is 5 mm to 15 mm, the inner diameter is 4.5 mm to 14.5 mm, and the length is 0.3 m to 3 m. The outer diameter and inner diameter of the short diversion tube are the same as the non-woven membrane tube, and the length is 80 mm. ~150mm.

The radii of the round holes on the outer package plate and the inner package plate are the same as the outer diameter of the non-woven membrane tube.

At both ends of each non-woven membrane tube, there are 6 short diversion tubes distributed around in a regular hexagon.

The non-woven membrane tube and the short diversion tube are made of resin fiber material and rolled from non-woven fabric with a specification of 60g/m ² to 180g/m ² and a pore size of 10μm to 80μm; The manufactured non-woven membrane tube and the short diversion tube are easy to form a dynamic membrane, have good water permeability, are simple to manufacture, and have relatively low cost.

The membrane shell, the inner packaging board and the outer packaging board are injection molded using resin materials according to requirements;

When the equipment is in use, the membrane module is placed in a reactor containing activated sludge, which plays the role of intercepting particles and strengthening biochemical treatment; when filtering, the sewage is lifted by the aeration device and enters the inside of the module through the short diversion pipe; no The woven fabric membrane tube retains the activated sludge flocs in the mixed solution, and gradually forms a stable dynamic film on the surface of the non-woven fabric membrane tube. Part of the water is filtered by the dynamic membrane formed on the non-woven membrane tube to become clean water, and the clean water is collected to the water collection area under the action of gravity, and is discharged from the membrane module through the lower interface, and the rest of the water passes through the short diversion pipe on the upper part of the module Re-enter the reactor for circulating filtration; when the effluent flux drops to 60% to 75% of the influent flux, backwashing is performed. During backwashing, the backflushing water enters the membrane tube through the water inlet to quickly flush the non-woven fabric membrane The surface of the tube until most of the dynamic membrane is detached, and then continue the sewage treatment process; after the filtration, the membrane module is backwashed again.

Beneficial effects: the utility model discloses a non-woven tubular self-generated dynamic membrane module, which has a wide range of sources of membrane raw materials, is easy to manufacture, has low cost, and is convenient for industrial production. The treatment effect is stable. Can achieve good social and economic benefits.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Figure 2 is a cross-sectional view of the inner packaging board;

Fig. 3 is a sectional view of the outer packaging board.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further explained.

The utility model discloses a non-woven fabric tube-type self-generated dynamic membrane assembly, which comprises a non-woven fabric membrane tube 1, a short diversion tube 2, a membrane shell 3, an aeration device 4, an inner packaging plate 5, and an outer packaging plate 6 , the lower interface 7, the upper interface 8 and the water collection area 9, the two ends of the membrane shell 3 are respectively provided with an outer packaging board 6 and an inner packaging board 5 from the outside to the inside, and the outer packaging board 6 is provided with 180 to 430 Round holes, 300-860 round holes are set on the inner packaging plate 5; The round hole is fixed between the outer package plate 6 and the inner package plate 5; an upper interface 8 is provided between the outer package plate 6 and the inner package plate 5 at the upper end of the membrane case 3, and an interface 8 is set between the outer package plate 6 and the inner package plate 4 at the lower end of the membrane case 3 Between them is a catchment area 9, which is provided with a lower interface 7; the bottom of the membrane shell 3 is provided with an aeration device 4 communicating with the short diversion pipe 2.

The outer diameter of the non-woven membrane tube 1 is 5 mm to 15 mm, the inner diameter is 4.5 mm to 14.5 mm, and the length is 0.3 m to 3 m. The outer diameter and inner diameter of the short diversion tube 2 are the same as the non-woven membrane tube 1, The length is 80mm to 150mm.

The radius of the circular holes on the outer package plate 6 and the inner package plate 5 is the same as the outer diameter of the non-woven membrane tube 1 .

There are 6 short diversion tubes distributed around each non-woven membrane tube in a regular hexagonal shape.

The non-woven membrane tube 1 and the short diversion tube 2 are made of resin fiber material with a weight of 60-180 g per square meter and a non-woven fabric with a pore size of 10 μm to 80 μm; The formed non-woven membrane tube 1 and short diversion tube 2 are easy to form a dynamic membrane, have good water permeability, simple manufacture, and relatively low cost;

The membrane shell 3, the inner packaging board 5 and the outer packaging board 6 are injection molded using resin materials as required;

When the equipment is in use, the membrane module is placed in a reactor containing activated sludge to retain particles and strengthen biochemical treatment; when filtering, the sewage is lifted by the aeration device 4 and enters the module through the short diversion pipe 2 The non-woven membrane tube 1 retains the activated sludge flocs in the mixed solution, and gradually forms a stable dynamic film on the surface of the non-woven membrane tube 1 . Part of the water is filtered by the dynamic membrane formed on the non-woven membrane tube 1 to become clean water, and the clean water is collected to the water collection area 9 under the action of gravity, and is discharged from the membrane module through the lower interface 7, and the rest of the water passes through the guide on the upper part of the module. The flow short pipe 2 re-enters the reactor for circulation and filtration; when the effluent flux drops to 60%-75% of the influent flux, backwashing is performed. Rinse the surface of the non-woven membrane tube 1 until most of the dynamic membrane is detached, and then continue the sewage treatment process; after the filtration, backwash the membrane module again.

The utility model provides an idea and method of a non-woven fabric tubular self-generated dynamic membrane module. There are many methods and approaches for realizing the technical solution. The above description is only a preferred embodiment of the utility model. Those of ordinary skill in the technical field can also make some improvements and modifications without departing from the principle of the utility model. Each component part can be realized with existing technology.

Claims (4)

1. non-woven tubular self-generative dynamic membrane component, it is characterized in that, comprise non-woven membrane tube (1), water conservancy diversion short tube (2), putamina (3), aerator (4), interior package board (5), outer package plate (6), lower interface (7), go up interface (8) and gathering ground (9), the two ends of described putamina (3) are provided with outer package plate (6) and interior package board (5) from outside to inside respectively successively, outer package plate (6) is provided with 180～430 circular holes, and interior package board (5) is provided with 300～860 circular holes; Non-woven membrane tube (1) is fixed in the putamina (3) by the circular hole on the interior package board (5), and water conservancy diversion short tube (2) is fixed between outer package plate (6) and the interior package board (5) by the circular hole on the outer package plate (6); Establishing interface (8) between putamina (3) upper end outer package plate (6) and the interior package board (5), is gathering ground (9) between putamina (3) lower end outer package plate (6) and the interior package board (5), is provided with lower interface (7); Putamina (3) bottom is provided with the aerator (4) that communicates with water conservancy diversion short tube (2).

2. a kind of non-woven tubular self-generative dynamic membrane component according to claim 1, it is characterized in that, the external diameter of described non-woven membrane tube (1) is 5mm～15mm, internal diameter is 4.5mm～14.5mm, length is 0.3m～3m, the external diameter of water conservancy diversion short tube (2) is identical with non-woven membrane tube (1) with internal diameter, and length is 80mm～150mm.

3. a kind of non-woven tubular self-generative dynamic membrane component according to claim 1 is characterized in that, described outer package plate (6) is identical with the external diameter of non-woven membrane tube (1) with circle hole radius on the interior package board (5).

4. a kind of non-woven tubular self-generative dynamic membrane component according to claim 1 is characterized in that, every non-woven membrane tube (1) two ends have 6 water conservancy diversion short tubes (2) to be regular hexagon around distribution.

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