Blanket type membrane equipment

Abstract

The invention discloses blanket type membrane equipment which comprises a frame and at least one blanket type membrane assembly arranged in the frame, the blanket type membrane assembly and a blanket type membrane assembly supporting part, and the blanket type membrane assembly comprises multiple layers of blanket type membranes and powder carriers arranged between the adjacent blanket type membranes. A powder carrier feeding pipeline is arranged above the powder carrier; the blanket type membrane assembly supporting part comprises hanging rods located at the two ends of the blanket type membrane and supporting grid bars connected between the hanging rods at the two ends, and the blanket type membrane is fixedly connected with the hanging rods and the supporting grid bars. The whole set of equipment is directly hoisted into the sewage pool on site without water cut-off transformation of an existing sewage treatment pool, construction and installation are rapid, operation and maintenance are convenient, operability is high, and non-production-stop transformation of existing sewage treatment facilities is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment equipment, in particular to a blanket-type membrane equipment. Background Art

[0002] Sewage treatment plants play a vital role in modern cities and environmental protection. They are responsible for the treatment of urban industrial wastewater and domestic sewage, and play an irreplaceable role in reducing water pollution, protecting water resources, maintaining ecological balance, ensuring public health, and promoting sustainable development. As a key link in the collection, transportation and treatment of urban sewage, the construction and improvement of sewage treatment pipelines are directly related to the efficiency and effectiveness of urban sewage treatment.

[0003] The pipeline improvement project has reduced the direct discharge of sewage and effectively increased the sewage collection rate, causing the total amount of sewage entering the sewage treatment plant to increase year by year, and the water quality concentration has also been rising. The influent volume and water quality concentration of some sewage treatment plants far exceed the design load. In addition, some sewage treatment plants have problems such as aging equipment, backward technology, high energy consumption and high failure rate. As a result, some sewage treatment plants have to reduce production due to insufficient treatment capacity and the effluent water quality cannot be stably up to standard. For example, in order to improve the sewage treatment capacity, it is necessary to suspend production for upgrading or rebuild new treatment equipment. However, this cannot quickly increase the sewage treatment capacity, and the cost of transformation or reconstruction is high. Summary of the invention

[0004] The object of the present invention is to provide a blanket-type membrane device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A blanket membrane device, comprising a frame and at least one blanket membrane assembly arranged in the frame, the blanket membrane assembly and a blanket membrane assembly support portion, the blanket membrane assembly comprising a plurality of blanket membranes and a powder carrier arranged between adjacent blanket membranes, a powder carrier dosing pipeline being arranged above the powder carrier;

[0007] The blanket-type membrane assembly support part includes suspension rods located at both ends of the blanket-type membrane and support bars connected between the suspension rods at both ends. The blanket-type membrane is fixedly connected to the suspension rods and the support bars.

[0008] As a further solution of the present invention: the frame includes an upper frame body and a lower frame body, the upper frame body is a rectangular frame structure and includes two top transverse rods and two top vertical rods connected at intervals, the lower frame body is a rectangular frame structure and includes two bottom transverse rods and two bottom vertical rods connected at intervals, and the upper frame body and the lower frame body are fixedly connected by multiple connecting columns.

[0009] As a further solution of the present invention: three blanket-type membrane assemblies are arranged in the frame, and the blanket-type membrane assemblies are fixedly connected to the top transverse rod and the bottom transverse rod through a suspension rod.

[0010] As a further solution of the present invention: the blanket membrane is provided with two sheets, a powder carrier is filled between the two sheets of the blanket membrane, the blanket membrane is made of a PP-ES blended material, and the powder carrier is a micron bacteria composite powder carrier.

[0011] As a further solution of the present invention: a mud discharge trough is provided below the blanket membrane, both ends of the mud discharge trough are fixedly connected to the suspension rod, and both upper and lower ends of the suspension rod extend to the outside of the blanket membrane.

[0012] As a further solution of the present invention: gate plates are provided at both ends of the blanket-type membrane, and the gate plates are movably connected to the suspension rods.

[0013] As a further solution of the present invention: a dosing control valve is provided on the powder carrier dosing pipeline.

[0014] As a further solution of the present invention: an aerator is arranged at the bottom of the frame, and the aerator is located below the blanket membrane assembly.

[0015] As a further solution of the present invention: a plurality of aerators are provided, and the plurality of aerators are connected to an aeration main pipe via air branches, and an aeration valve is provided on the aeration main pipe.

[0016] As a further solution of the present invention: a support frame is arranged below the aerator, the support frame is fixedly connected to the frame, and the aerator is fixedly connected to the top of the support frame via a bracket.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The blanket membrane equipment of the present application adopts a modular design and can be directly placed in the sewage treatment reaction tank. There is no need to stop the water supply to the existing sewage treatment tank for transformation. The whole set of equipment can be directly hoisted into the sewage tank on site. The construction and installation are fast, the operation and maintenance are convenient, and the operability is strong. It is convenient for the existing sewage treatment facilities to be transformed without stopping production. While ensuring the existing sewage treatment capacity, the treatment capacity of the sewage treatment equipment can be quickly improved in a short period of time. Moreover, the cost is low and the applicability is strong.

[0019] 2. This application can flexibly determine the number of tubular aerators, blanket membrane modules and the dosage of micron bacteria according to different treatment target needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a top view of the present invention;

[0021] Figure 2 This is a cross-sectional view of the present invention along the AA plane;

[0022] Figure 3 It is a cross-sectional view along the BB plane of the present invention;

[0023] Figure 4 It is a schematic diagram of the planar structure of the blanket-type membrane module in the present invention;

[0024] Figure 5 is a cross-sectional view of the blanket membrane assembly along the aa plane in the present invention;

[0025] Figure 6 It is a cross-sectional view of the blanket membrane assembly along the bb plane in the present invention;

[0026] Figure 7 It is a schematic plan view of the bottom frame of the present invention;

[0027] In the figure: 1-frame, 2-bottom transverse rod, 3-bottom vertical rod, 4-top transverse rod, 5-top vertical rod, 6-connecting column, 7-blanket membrane assembly, 8-aerator, 9-air branch pipe, 10-aeration valve, 11-blanket membrane, 12-support grid, 13-powder carrier, 14-powder carrier dosing pipeline, 15-dosing control valve, 16-sludge trough, 17-gate, 18-suspender rod, 19-bracket, 20-support frame. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1 In an embodiment of the present invention, a blanket-type membrane device includes a frame 1, and the frame 1 includes an upper frame body and a lower frame body. The upper frame body is a rectangular frame structure and includes two top transverse rods 4 and two top vertical rods 5 connected at intervals. The lower frame body is a rectangular frame structure and includes two bottom transverse rods 2 and two bottom vertical rods 3 connected at intervals. The upper frame body and the lower frame body are fixedly connected by a plurality of connecting columns 6.

[0030] At least one blanket membrane assembly 7 and a blanket membrane assembly support portion for supporting the blanket membrane assembly 7 are provided in the frame 1. In the present embodiment, three blanket membrane assemblies 7 are provided in the frame 1. The blanket membrane assembly support portion includes suspension rods 18 located at both ends of the blanket membrane 11 and support bars 12 connected between the suspension rods 18 at both ends. The blanket membrane 11 is fixedly connected to the suspension rods 18 and the support bars 12. The blanket membrane assembly 7 is fixedly connected to the top transverse rod 4 and the bottom transverse rod 2 through the suspension rods 18.

[0031] The blanket membrane assembly 7 includes a multi-layer blanket membrane 11 and a powder carrier 13 disposed between adjacent blanket membranes 11. The particle size of the powder carrier in this embodiment is generally 10-50 μm, and it incorporates a variety of microbial agents, biological enzymes, trace elements and other complex components. The micron bacteria composite powder carrier is prepared by dry powder mixing, and is in a fluidized state in the sewage and evenly distributed, so that the adaptive bacteria are closely attached to the surface of the carrier with microbial compatibility, and its surface charge attracts the bacterial activity, thereby improving the ability of the micron bacteria composite powder carrier to enhance denitrification in sewage treatment. A powder carrier addition pipeline 14 is arranged above 13, and a addition control valve 15 is arranged on the powder carrier addition pipeline 14. In the present embodiment, two pieces of blanket membrane 11 are arranged, and the powder carrier 13 is filled between the two pieces of blanket membrane 11. The blanket membrane 11 adopts PP-ES blended material, and the powder carrier is a micron bacteria composite powder carrier. A mud discharge trough 16 is arranged below the blanket membrane 11, and both ends of the mud discharge trough 16 are fixedly connected to the suspension rod 18. Both ends of the suspension rod 18 extend to the outside of the blanket membrane 11, and gate plates 17 are arranged at both ends of the blanket membrane 11, and the gate plates 17 are movably connected to the suspension rod 18.

[0032] An aerator 8 is provided at the bottom of the frame 1, and the aerator 8 is located below the blanket membrane assembly 7. In the present embodiment, a support frame 20 is provided below the aerator 8, and the support frame 20 is fixedly connected to the frame 1. The aerator 8 is fixedly connected to the top of the support frame 20 through a bracket 19. A plurality of aerators 8 are provided, and the plurality of aerators 8 are connected to an aeration main pipe through an air branch pipe 9, and an aeration valve 10 is provided on the aeration main pipe.

[0033] When the present invention is in use, the blanket membrane device of this embodiment is placed in a sewage treatment system, and then the sewage can be treated by the micron bacteria blanket membrane in the blanket membrane. In addition, the present application is also provided with a powder carrier addition pipeline 14, through which the treatment bacteria can be added to the powder carrier 13 between the blanket membranes 11. At the initial stage of system startup, the amount of powder carrier added is about one thousandth of the capacity of the biochemical pool, and the addition is completed within three months by gradually adding in batches. After the system runs stably, the additional addition is once a year, and the additional addition amount is 5%-10% of the first year's addition amount, thereby gradually stabilizing the treatment equipment and maintaining the stable operation of the treatment equipment for a long time.

[0034] At the same time, an aerator 8 is also provided below the blanket membrane assembly of this embodiment. The aerator 8 is equipped with a biochemical system blower, and the blower is equipped with a variable frequency speed control device. The air volume and pressure output are adjusted by changing the speed of the blower to form a pulse aeration mode. The pulse aeration mode increases the pressure and speed of the air outlet of the aeration pipe, accelerates the turbulence of the water body, and significantly improves the cleaning effect of the blanket membrane. The bubble clusters formed by the aerator 8 produce a flushing and vibration effect on the blanket membrane during the rising and rupture process, thereby shaking off the impurities and dead mud attached to the blanket membrane, and maintaining a good membrane effect on the surface of the blanket membrane. The blanket membrane assembly is air-washed and cleaned once every 12 hours, and each time lasts for 5 minutes.

[0035] In addition, a sludge discharge trough is provided at the bottom of the blanket membrane assembly of the present application, and liftable gate plates are provided on both sides. The gate plates are lifted regularly according to the operating conditions, and the aged biofilm debris and precipitated carrier impurities shed from the blanket membrane assembly in the sludge trough are flushed away by water flow.

[0036] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0037] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A blanket membrane device, characterized in that: It comprises a frame (1) and at least one blanket membrane assembly arranged in the frame (1), the blanket membrane assembly (7) and a blanket membrane assembly support portion, the blanket membrane assembly (7) comprising a plurality of blanket membranes (11) and a powder carrier (13) arranged between adjacent blanket membranes (11), and a powder carrier dosing pipe (14) is arranged above the powder carrier (13); The blanket-type membrane assembly support portion comprises suspension rods (18) located at both ends of the blanket-type membrane (11) and support bars (12) connected between the suspension rods (18) at both ends; the blanket-type membrane (11) is fixedly connected to the suspension rods (18) and the support bars (12).

2. A blanket membrane device according to claim 1, characterized in that: The frame (1) comprises an upper frame body and a lower frame body, wherein the upper frame body is a rectangular frame structure and comprises two top transverse rods (4) and two top vertical rods (5) connected at intervals, and the lower frame body is a rectangular frame structure and comprises two bottom transverse rods (2) and two bottom vertical rods (3) connected at intervals, and the upper frame body and the lower frame body are fixedly connected via a plurality of connecting columns (6).

3. A blanket membrane device according to claim 2, characterized in that: Three blanket-type membrane assemblies (7) are arranged in the frame (1), and the blanket-type membrane assemblies (7) are fixedly connected to the top transverse rod (4) and the bottom transverse rod (2) via a suspension rod (18).

4. A blanket membrane device according to claim 1, characterized in that: The blanket-type membrane (11) is provided with two sheets, and a powder carrier (13) is filled between the two sheets of the blanket-type membrane (11). The blanket-type membrane (11) is made of a PP-ES blended material, and the powder carrier is a micron bacteria composite powder carrier.

5. The blanket membrane device according to claim 1, characterized in that: A mud discharge trough (16) is provided below the blanket-type membrane (11), and both ends of the mud discharge trough (16) are fixedly connected to the suspension rod (18), and both upper and lower ends of the suspension rod (18) extend to the outside of the blanket-type membrane (11).

6. A blanket membrane device according to claim 1, characterized in that: Gate plates (17) are provided at both ends of the blanket-type membrane (11), and the gate plates (17) are movably connected to the suspension rod (18).

7. The blanket membrane device according to claim 1, characterized in that: The powder carrier dosing pipeline (14) is provided with a dosing control valve (15).

8. The blanket membrane device according to claim 1, characterized in that: An aerator (8) is provided at the bottom of the frame (1), and the aerator (8) is located below the blanket membrane assembly (7).

9. A blanket membrane device according to claim 8, characterized in that: A plurality of aerators (8) are provided, and the plurality of aerators (8) are connected to an aeration main pipe via an air branch pipe (9), and an aeration valve (10) is provided on the aeration main pipe.

10. The blanket membrane device according to claim 8, characterized in that: A support frame (20) is provided below the aerator (8), the support frame (20) is fixedly connected to the frame (1), and the aerator (8) is fixedly connected to the top of the support frame (20) via a bracket (19).

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