CN205398206U - Novel dull and stereotyped ceramic membrane subassembly - Google Patents

Abstract

The utility model discloses a novel flat ceramic membrane module, which comprises a membrane group member, a membrane module and an aeration group member, and the membrane group member includes at least one module bracket (1) and a water collecting pipe arranged above the module bracket (4), the component bracket is provided with a fixed support seat (13), the upper and lower ends of the hollow ceramic flat diaphragm are arranged on the fixed support seat at intervals through rubber pads (21), and the side of the hollow ceramic flat diaphragm is oppositely provided with a drainage plate ( 8), the two ends of the hollow ceramic flat diaphragm are provided with an upper plug (2) and a lower plug (18), the water outlet hole (7) on the upper plug is connected with the outlet pipe (14), and the outlet pipe passes through the connecting pipe ( 5) Connected to the water collecting pipe. The utility model solves the difficulty of cleaning the organic membrane element during operation, is convenient for maintenance, saves time, reduces the occupied area, can reduce the cost of working hours, improves the processing efficiency, and effectively improves the service life and reliability of the membrane bioreactor.

Description

A New Flat Ceramic Membrane Module

technical field

The utility model belongs to a water treatment device, in particular to a novel flat ceramic membrane assembly.

Background technique

China is a water-scarce country, and sewage treatment and reuse are effective measures to develop and utilize water resources. As a new type of high-efficiency sewage treatment technology, ceramic flat membrane bioreactor has become an indispensable treatment technology for domestic sewage, industrial wastewater and even extreme environmental wastewater treatment. Wastewater reuse has been widely adopted in many water-scarce areas of the world and is considered to have significant social, environmental and economic benefits.

At present, the membrane bioreactor (MBR) is widely used in membrane bioreactors. MBR has the following main characteristics: high treatment efficiency, good effluent quality; compact equipment, small footprint; easy to realize automatic control, simple operation and management. However, organic membrane-bioreactors also have many deficiencies. Mainly manifested in the following aspects: 1. High membrane cost; 2. Membrane fouling is prone to occur; 3. High energy consumption: firstly, the membrane flux is small, and secondly, it is necessary to maintain a sufficient oxygen transfer rate; 4. It cannot adapt to the environment with high pH and module pollution Frequent blockage, difficult backwashing must be replaced, difficult to replace. It has a short service life and cannot be regenerated. Now the market has gradually replaced MBR with flat ceramic membranes with high strength, large water flux and long life, and achieved good results. However, because the flat ceramic membrane needs to be packaged with a plug and needs to be protected from external impact, it must be assembled in a bracket, which makes installation and replacement difficult. This practical patent effectively solves the difficulty of installation and replacement. It simplifies and optimizes the overall design and adds a rotating support part. When installing, you only need to open the rotating device to install it directly on site, and can replace the flat ceramic diaphragm online, shortening the Installation and debugging time.

Utility model content

In order to solve the problems of complex components, difficult installation of membranes and the need to disassemble a large number of parts for replacement in membrane bioreactors in the prior art, the utility model provides a new type of flat ceramic membrane component.

In order to solve the above technical problems, the utility model adopts the following technical scheme: the new flat ceramic membrane module includes a membrane group member, a diaphragm assembly and an aeration member, the membrane group member is a frame structure, and the diaphragm assembly is arranged on the membrane group In the frame of the component, the aeration component is arranged under the membrane group component. The membrane assembly includes hollow ceramic flat membranes arranged at intervals, and the aeration member includes aeration tubes with aeration holes arranged at intervals. The membrane The group member includes at least one assembly bracket and a water collection pipe arranged above the assembly bracket. The assembly bracket is provided with a fixed support seat, and the upper and lower ends of the hollow ceramic flat diaphragm are arranged on the fixed support seat at intervals through rubber pads. The hollow The two sides of the ceramic flat diaphragm are provided with drainage plates, the two ends of the hollow ceramic flat diaphragm are provided with an upper plug and a lower plug, the upper plug is provided with a water outlet hole, and a water outlet pipe is connected to the water outlet hole. The water outlet pipe is connected to the water collection pipe through a connecting pipe.

In order to facilitate the installation of the single-piece hollow ceramic flat diaphragm, take it out, replace or clean it, the upper and lower ends of the hollow ceramic flat diaphragm are set on the rotating support seat through rubber pads, and the rotating support seat is set on the component bracket through the rotating shaft .

The hollow ceramic flat membranes are combined at intervals to form a single set in a component bracket. The total filtration area of the hollow ceramic flat membranes in the single set is 50 square meters. In one component bracket, there are 100 pieces with a length of 250mm, a thickness of 6mm, Diaphragms with a height of 1024mm are arranged at intervals (two sets of symmetrical combinations form 100 square meters or four sets of matrix form 200 square meters). The aeration component is independent of the membrane assembly and located under the membrane; the structure of the membrane group: the membrane is fixed in the support seat, and only the rotating support seat needs to be opened and closed during installation; the aeration component consists of three aerators with anti-backflow straight holes The trachea 11 is composed of a base bracket, the upper part can be connected with the membrane group components, and the lower part can be fixed in the treatment tank, and the aeration passes through the drainage plates 8 on both sides of the membrane group components upward to form a "cross-flow filtration" mode. The upper end of each hollow ceramic flat plate diaphragm on the diaphragm assembly is provided with an upper plug, and each upper plug 2 is provided with a water outlet hole 7, and the water outlet hole is connected with a water outlet pipe 14, and each water outlet pipe is respectively connected to the water collecting pipe. The position of the water inlet 4 corresponds and is connected with the quick connector 15 and the connecting pipe 5 to pump out the filtered water and discharge it through the water collection pipe at the top of the middle; Within 2Mpa, it is not limited by the number of backwashing. And when the online washing cannot restore the flux to more than 80%, offline solvent washing can be used.

The core element of the ceramic flat membrane module of the utility model adopts a hollow ceramic flat microporous membrane, and the high-purity Al2O3 composite membrane structure makes the membrane have high mechanical strength, strong pressure bearing capacity, good chemical stability, uniform porosity distribution, and high water flux. Large size, good anti-pollution, easy to clean and regenerate, long service life, high economy, etc., solves the difficulties in cleaning, cumbersome maintenance, repeated backwashing, frequent replacement, high environmental requirements, and short service life of organic membrane elements during operation. Susceptible to acid and alkali corrosion, high operating costs, large floor space and other problems, it is easy to cause difficulties in sewage discharge, which effectively improves the service life and reliability of the membrane bioreactor. And the used flat ceramic membrane can be recycled for other ceramic products, reducing waste. In practical applications, components can be stacked or assembled in parallel according to the needs of the site to form a larger system as a whole.

Description of drawings

Figure 1 is a schematic diagram of the front view of a flat ceramic membrane module formed by two module brackets,

Fig. 2 is a schematic diagram of the cross-sectional structure of A-A in Fig. 1,

Fig. 3 is an enlarged schematic diagram of the X-X local structure of Fig. 1,

Fig. 4 is an enlarged schematic diagram of the Y-Y local structure of Fig. 2,

Fig. 5 is an enlarged schematic diagram of the Z-Z local structure of Fig. 2,

Fig. 6 is a schematic cross-sectional view of a hollow ceramic flat diaphragm.

In the figure, 1, component support 2, upper plug 3, water inlet 4, water collection pipe 5, connecting pipe 6, hook 7, water outlet 8, drainage plate 9, hollow ceramic flat diaphragm 10, rotating support seat 11 , aeration pipe 12, support foot 13, fixed support seat 14, outlet pipe 15, quick connector 16, frame 17, aeration hole 18, lower plug 19, lower fixed bracket 20, upper fixed bracket 21, rubber pad 22, hollow hole 23, rotating shaft 24, pressing plate 25, screw.

detailed description

As shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6, the new flat ceramic membrane module includes a membrane group member, a diaphragm assembly and an aeration member, the membrane group member is a frame structure, and the diaphragm assembly It is arranged in the frame of the membrane group member, and the aeration member is arranged under the membrane group member. The membrane assembly includes hollow ceramic flat plate membranes 9 arranged at intervals, and the aeration member includes aerators with aeration holes 17 arranged at intervals. The air pipe 11, the membrane group member includes two component brackets 1 and the water collection pipe 4 arranged above the component bracket, the component bracket is provided with a fixed support seat 13, the inner side of the hollow ceramic flat diaphragm (adjacent side) The upper and lower ends are arranged on the fixed support base at intervals through rubber pads 21, the side of the hollow ceramic flat diaphragm is provided with a drainage plate 8, and the upper and lower ends of the outer side (opposite side) of the hollow ceramic flat diaphragm are arranged through rubber mats On the rotating support base 10, the rotating supporting base is set on the component support through the rotating shaft 23, the pressing plate 24 and the screw 25, and the upper plug 2 and the lower plug 18 are arranged at both ends of the hollow ceramic flat plate diaphragm, so The above plug is provided with a water outlet hole 7, and the water outlet hole is connected with a water outlet pipe 14. The water outlet pipe is connected to one end of the connecting pipe 5 through a quick connector 15, and the other end of the connecting pipe is staggered with the inlet on the water collecting pipe 4 through a quick connector. Water port 3 is connected. The front, back and sides of the hollow ceramic flat membrane 9 are provided with micropores, and water channels are arranged inside, and the water entering the hollow ceramic flat membrane flows out through the outlet pipe.

When in use, the hollow ceramic flat-panel membrane module is directly immersed in the bottom of the sewage tank, and filtered in the form of negative pressure suction, and the aerated sewage enters the hollow hole 22 in the hollow ceramic flat-panel membrane. The water inside flows out from the water outlet hole into the water outlet pipe, and enters the water collection pipe through the connecting pipe.

The upper and lower parts of the membrane components are provided with corresponding connection positions. According to the demand of sewage treatment capacity, they can be combined side by side or stacked. The total area of membrane filtration in one module bracket is 50 square meters (two module brackets are arranged side by side as a group of filters) The area is 100 square meters (as shown in Figure 1), and the two groups are superimposed to form a filtration area of 200 square meters. Each set of membrane modules is equipped with a collection pipe in the middle according to different filtration diameters and flow rates, and each set of membrane modules is independent at the bottom. Connect a set of aeration components to facilitate the increase and decrease of membrane components.

In order to further improve the stability of the membrane components, an independent base is provided at the bottom of each membrane component. The upper end of the base is connected and fixed correspondingly to the lower part of the membrane module. There are four 10mm stainless steel plates at the lower end, and a hole is opened in the middle, which is convenient for fixing in the sewage tank. The purpose of setting is to increase the stress area and improve the structural stability.

Each component is equipped with two symmetrical concave frames, the upper and lower concave ribs on the back are connected, and the concave ribs are assembled horizontally; two rubber pads with card slots are fixed on the inner side of the upper and lower sides. There are two equal-length brackets connected to each other on the inner side of the rotating support base; four longitudinal concave reinforcing bars are arranged in the middle of the reinforcing rib and in the middle of the bracket, so as to improve the stability of the overall structure.

The four corners of the ceramic diaphragm are respectively inserted into the slots of the soft rubber pads, and the rubber pads are respectively fixed on the reinforcement ribs on the fixed side and the rotating support seat on the movable side, and the opening slots of the upper and lower rubber pads and the front and rear rubber pads are set opposite to each other. . The rubber pad has a round hole in the middle of the card slot in the horizontal direction, which is convenient for the diaphragm plug to pass through the water outlet cylinder.

When installing the hollow ceramic flat plate diaphragm (hereinafter referred to as the diaphragm), loosen the screw, open the rotating support seat on the outside, rely on the fixed bracket, insert the rubber pad slot on the fixed side reinforcement piece by piece, and the outlet pipe Pass through the round hole of the rubber pad on the fixed side, and then turn the rotating support seat to fix the outer side of the diaphragm in the rubber pad slot of the rotating support seat. Because the rubber pad is soft rubber and there is a gap during installation, it can effectively protect the diaphragm and prevent damage to the diaphragm caused by impact. With the use of a rotating support seat, when there is a problem with the diaphragm assembly, it is not necessary to dismantle the diaphragm as a whole. It is only necessary to pull out the problematic diaphragm for processing and replacement, which is convenient and quick, saves time, reduces working hours and improves processing efficiency.

The two sides of the membrane module are surrounded by four drainage plates. This can prevent the external force from damaging the membrane and prevent the gas from diffusing out of the membrane module, ensure that the soda and water are fully mixed, and can make the water flow form a direction of downward inflow and upward outflow, forming cross-flow filtration and reducing membrane pore clogging. Improve the treatment effect of hollow ceramic flat membrane.

The pore diameters of the micropores on the hollow ceramic flat plate membrane 9 are 0.01 μm, 0.05 μm, 0.1 μm, 1 μm, 2 μm, and 5 μm, and the membrane flux is from 0.3 to 8 m ³ /(㎡H). This can adapt to places with different requirements. Further improve the efficiency of sewage treatment, thereby saving energy and space.

The height of the hollow ceramic flat diaphragm is 1022-1024mm; the hollow ceramic flat diaphragm is arranged in parallel, and the distance between two adjacent hollow ceramic flat diaphragms is 16mm; the height of the aeration tube is 145-150mm, which is convenient for the aeration gas to form a scattering shape Spread upwards onto the membrane. The distance between the bottom of the aeration component and the bottom of the membrane support is 180mm. Each aeration component is equipped with three 1-inch aeration tubes 11, and the aeration tube is provided with an aeration hole 17. The diameter of the aeration hole is 6.2mm. There is a movable umbrella-shaped anti-cap to prevent the backflow of sediment and flocs during shutdown. The number of each aeration hole and the number of diaphragms correspond to 100, and the flow rate of the aeration hole is 10-15m/s. The hollow ceramic flat diaphragm is extruded with high-purity alumina as a carrier, and its cross section has 50-60 hollow holes 22 arranged in a single row and penetrating up and down.

The materials of the above-mentioned membrane components are all 304 stainless steel stamped and assembled. This can adapt to most sewage environments, and the top of each set of membrane components is provided with four oppositely arranged hooks 6 and a frame 16 . This further facilitates the hoisting of the membrane module. The bottom aeration component is provided with four supporting feet 12, leaving a 90mm gap with the ground, which is convenient for forklift loading and unloading components. The technology not mentioned in the utility model all refers to prior art.

The upper fixing bracket 20 and the lower fixing bracket 19 are arranged inside the membrane group member, and the rubber pad 21 is arranged on the fixed support seat 13, and two groups of 100 hollow ceramic flat diaphragms pass through the upper and lower fixing brackets and the rubber pads respectively. The pads are assembled in the two membrane components that are left and right mirror images; the water collecting pipe is set on the angle steel of the membrane component above the middle of the two sets of hollow ceramic flat membrane components; the upper plug of the hollow ceramic flat membrane is provided with a water outlet pipe, and the water collecting pipe side There are two rows of staggered water inlet holes on the wall, and the outlet pipes correspond to the water inlet holes one by one, and through the nylon connecting pipe, centralized filtration and drainage are carried out by negative pressure suction. The membrane group member is a rectangular parallelepiped frame structure. The membrane group member includes two concave frames with equal height and vertical mirror image on the left and right sides. The rubber pads are fixed on the fixed support seat on the inner side and the rotating support seat on the outer side. The rotating support seat is connected by two equal-length brackets on the inner side; there are four longitudinal concave reinforcements in the middle of the rib and the bracket. strips; two sets of mirror-protected membrane components are connected and fixed with four angle steels to form a 100-square-meter ceramic membrane module.

The outer rotating support seat of the ceramic flat membrane module can rotate inside and outside the center of the rotation axis of the support seat, so as to quickly and easily install and replace the diaphragm assembly; the rubber pad is fixed on the support seat with soft rubber injection molding, leaving a small gap after the diaphragm is installed , to prevent the diaphragm from being subjected to water impact and causing rigid cracks.

The shape of the rubber pad is a rectangular cylinder, and there are grooves in the center of each face in the length direction. The shape of the plug is corresponding, and a round hole with a diameter of 11 mm is provided on the back of the horizontal groove, and the outlet pipe of the upper plug on the ceramic diaphragm assembly is fixed through the round hole.

The rotating shaft of the support seat is provided with two sections of cylinders with different diameters, one end is provided with an external hexagon bolt head, and the other end is provided with an external thread. The length of the large-diameter cylinder is approximately greater than the thickness of the side surface of the rotating support seat, which is convenient for rotation; the length of the small-diameter cylinder is approximately less than the thickness of the end surfaces of the frames on both sides of the diaphragm assembly, which is convenient for external screw fixing.

The upper plug of the hollow ceramic flat plate diaphragm is provided with a water outlet hole, and the water outlet hole is connected with the water outlet pipe. The outlet pipes of the two sets of mirrored diaphragm components are concentrated on the inner side, and two rows of staggered inlet pipes are arranged on the side wall of the water collection pipe. Corresponding to the water holes, quick connectors are installed on the outlet pipe and the water inlet, and connected by nylon soft connection pipes, which is convenient for quick installation and removal.

The distance between the top of the hollow ceramic flat plate diaphragm and the water collection pipe is 180mm; the water collection pipe is fixed above the middle angle steel of the two sets of membrane modules with a clamp; the diameter of the inner hole of the water collection pipe is set according to more than 1.2 times the flux of the diaphragm . One end is fixed with a plug seal, and the other end is connected to the flange. The water collection pipe is made of PPR hot-melt pipe or 304 stainless steel pipe. There are two rows of threaded holes staggered under the pipe wall, the hole distance is 16mm, and the quick connector is installed to correspond to the outlet of the plug on the upper end of the ceramic membrane. The ceramic membrane is sealed with a nylon connecting pipe. .

The hollow ceramic flat plate diaphragm is extruded with high-purity alumina as the carrier. The outer dimension is 250mm long, 6mm thick, and 1024mm high. The pore size is 0.5-5μm, the middle is coated with a transition layer, and the outer surface is coated with a 0.01-0.2um microporous membrane, so that the membrane pore size can range from 0.01um to 5um, and the pore distribution is narrow, and the membrane flux is 0.3-3m ³ /( ㎡H); the upper and lower ends of the ceramic membrane are injection molded with ABS material, and the plug is sealed with the ceramic diaphragm. In the groove at the bottom of the shape, the width of the notch is about greater than the thickness of the diaphragm, the width of the notch is about greater than the width of the diaphragm, and the length is about less than the length of the diaphragm.

The overall height of the membrane group components is 1022-1024mm; ceramic flat diaphragms are arranged in parallel, and the distance between two adjacent diaphragms is 16mm. The height of the aeration layer is 140-150mm, the upper part is connected with the ceramic membrane module, and the lower part is equipped with four horizontal stainless steel plates, which can be directly placed on the bottom of the sewage tank and fixed on the ground. There are three aeration tubes with an outer diameter of 1 inch in the middle. There are 100 aeration holes with a diameter of 6.2mm on the upper surface of each aeration tube. The flow rate of the aeration holes is 10-15m/s. Counterflow cap, the distance from the center of the aeration tube to the bottom of the ceramic membrane is 180mm. The air flow forms an upward scattering shape in the middle of the diversion plate, so that the sewage flows upward from the bottom of the aeration component to the water collection pipe, which can fully mix the steam and water and make the sewage form cross-flow filtration with the membrane surface.

Claims (8)

1. null1. a novel flat-plate ceramic film component,It includes film fabric part、Diaphragm unit and aeration fabric part，Film fabric part is frame structure，Diaphragm unit is located in the framework of film fabric part、Aeration component is arranged on below film fabric part，Described diaphragm unit includes spaced hollow ceramic flat board diaphragm (9)，Described aeration component includes the aeration tube (11) being arranged at intervals with solarization air cap (17)，It is characterized in that: described film fabric part includes at least one assembly support (1) and is arranged on the collector pipe (4) above assembly support，Described assembly support is provided with fixed supporting seat (13)，The upper and lower two ends of hollow ceramic flat board diaphragm are disposed on fixed supporting seat by rubber blanket (21)，Hollow ceramic flat board diaphragm side is relatively set with drainage plate (8)，Described hollow ceramic flat board diaphragm two ends are provided with upper plug head (2) and lower end cap (18)，Apopore (7) on upper plug head is connected with outlet pipe (14)，Described outlet pipe is connected with collector pipe by connecting tube (5).
2. 2. a kind of novel flat-plate ceramic film component according to claim 1, it is characterized in that: two ends up and down, described hollow ceramic flat board diaphragm (9) outside are arranged on rotary support seat (10) by rubber blanket (21), and described rotary support seat is arranged on assembly support (1) by rotating shaft (23).
3. 3. a kind of novel flat-plate ceramic film component according to claim 1 and 2, is characterized in that: be provided with snap joint (15) between described outlet pipe and connecting tube and between connecting tube and collector pipe.
4. 4. a kind of novel flat-plate ceramic film component according to claim 1, is characterized in that: described collector pipe (4) adopts PPR tempreature bulb or 304 stainless steel tubes to make.
5. 5. a kind of novel flat-plate ceramic film component according to claim 1, is characterized in that: described hollow ceramic flat board diaphragm adopts high purity aluminium oxide to be that carrier is extruded, its cross section has the hollow hole (22) of 50-60 single arrangement and up/down perforation.
6. 6. a kind of novel flat-plate ceramic film component according to claim 5, is characterized in that: described carrier inside has the micropore of 0.5～5 μm, and carrier outer surface is provided with transition zone, transition zone plated surface 0.01～0.2um microporous membrane.
7. 7. a kind of novel flat-plate ceramic film component according to claim 2, it is characterized in that: described rotating shaft (23) is provided with two sections of different-diameter cylinders, one is provided with outer-hexagonal bolt head, other end is provided with external screw thread, major diameter cylinder length is more than rotary support seat side end thickness, and minor diameter cylinder length is less than diaphragm unit both sides frame end surface thickness.
8. 8. a kind of novel flat-plate ceramic film component according to claim 1, is characterized in that: the top of described film fabric part is provided with four suspension hooks being oppositely arranged (6).