CN115770433A - A new type of fully automatic tubular ultrafiltration membrane pretreatment filter device - Google Patents

Abstract

The invention relates to the technical field of filtering devices, in particular to a novel full-automatic tubular ultrafiltration membrane pretreatment filtering device. The technical scheme comprises the following steps: the self-cleaning filter comprises a self-cleaning filter body, a bypass system and a control system, wherein the bypass system comprises a basket type filter, an inlet pipeline and an outlet pipeline, a water inlet end of the self-cleaning filter body and a water outlet end of the basket type filter body are both fixed and communicated with the inlet pipeline, a water outlet end of the self-cleaning filter body and a water inlet end of the basket type filter body are both fixed and communicated with the outlet pipeline, and the control system comprises a control cabinet and comprises a water inlet pressure transmitter and a water outlet flow meter which are electrically connected with the control cabinet. The invention adopts a combined device which consists of a self-cleaning filter, a bypass system and an instrument control system, the device can automatically operate, the manual disassembly and cleaning of the filter are avoided, and the risk that the ultrafiltration membrane is blocked due to insufficient inflow of a membrane system and increased concentration ratio of the filter in the self-cleaning process is avoided.

Description

A new type of fully automatic tubular ultrafiltration membrane pretreatment filter device

technical field

The invention relates to the technical field of filtration devices, in particular to a novel fully automatic tubular ultrafiltration membrane pretreatment filtration device.

Background technique

At present, the commonly used process in the treatment of high-concentration organic wastewater such as landfill leachate is an external MBR membrane system. The pretreatment device of this system is a filter of 800um--1000um. The purpose is to prevent fibers, hair and other substances from entering the inside of the MBR membrane tube. Clogged membrane tube. The commonly used filters in the market are: 1. Basket filter - composed of a cylinder and a stainless steel filter screen, the filter screen is perforated - the filter needs to be manually disassembled and rinsed regularly; 2. Bag filter - bulky, filter The bag is replaced frequently, and the manual disassembly and maintenance environment is extremely poor; 3. Self-cleaning filter-composed of cylinder body, stainless steel filter screen and automatic rotating brush, the filter screen is perforated-during the process of automatic cleaning and sewage discharge of the filter, a large amount of water flows from the sewage outlet Outflow, resulting in insufficient water supply of the MBR membrane system, the subsequent system continues to operate, the concentration ratio increases significantly and the ultrafiltration membrane is blocked.

Contents of the invention

The purpose of the present invention is to propose a novel fully automatic tubular ultrafiltration membrane pretreatment filter device for the problems existing in the background technology.

The technical scheme of the present invention: a novel fully automatic tubular ultrafiltration membrane pretreatment filter device, including a self-cleaning filter, a bypass system and a control system, the bypass system includes a basket filter, an inlet pipe and an outlet pipe, the The water inlet end of the self-cleaning filter and the water outlet end of the basket filter are fixed and communicated with the inlet pipeline, and the water outlet end of the self-cleaning filter and the water inlet end of the basket filter are all fixed and communicated with the inlet pipe. It is fixed and communicated with the outlet pipeline, and the control system includes a control cabinet, and also includes an inlet water pressure transmitter and an outlet water flowmeter electrically connected to the control cabinet, and the inlet water pressure transmitter is arranged at the inlet On the pipeline, the outlet water flow meter is arranged on the outlet pipeline.

Preferably, the self-cleaning filter, the basket filter and the control cabinet are all installed on a filter skid base.

Preferably, the inlet pipe is provided with a filter skid-mounted general inlet, and the outlet pipe is provided with a filter skid-mounted general outlet.

Preferably, both the self-cleaning filter and the basket filter include water valves.

Preferably, the self-cleaning filter also includes a self-cleaning sewage outlet and a self-cleaning backwash water inlet, and the self-cleaning filter is also provided with an electric rotating brush holder assembly.

Preferably, the electric rotating brush holder assembly includes a driving motor, the output end of the driving motor is installed with a brush holder located in the self-cleaning filter, and a silicone scraper and a filter screen are installed on the brush holder.

Compared with the existing technology, the beneficial effect of the present invention is: the patent of the present invention adopts a combined device, which is composed of a self-cleaning filter, a bypass system and an instrument control system. When the system is in normal operation, the self-cleaning filter plays a role. When the control When the system detects that the self-cleaning filter is blocked, the system will switch to the bypass system through the valve. The device can be operated automatically, avoiding manual disassembly and cleaning of the filter, and the sewage directly enters the drain without sewage leakage, and the filter is performing self-cleaning During the cleaning process, there will be no risk of insufficient water flow into the membrane system, increased concentration ratio and clogging of the ultrafiltration membrane, and no manual maintenance and inspection is required.

Description of drawings

Fig. 1 is the structural representation of a kind of novel full-automatic tubular ultrafiltration membrane pretreatment filtering device that the present invention proposes;

Fig. 2 is the side view structure schematic diagram of a kind of novel full-automatic tubular ultrafiltration membrane pretreatment filtering device proposed by the present invention;

Fig. 3 is a schematic structural diagram of a new type of fully automatic tubular ultrafiltration membrane pretreatment filter device proposed by the present invention, an electric rotating brush holder assembly.

Reference signs: 1. Self-cleaning filter; 2. Basket filter; 3. Control cabinet; 4. General inlet of filter skid; 5. General outlet of filter skid; 6. Water inlet pressure transmitter; 7. Outlet flowmeter; 8. Filtration skid-mounted base; 9. Self-cleaning sewage outlet; 10. Self-cleaning backwash water inlet; 11. Water valve; 12. Inlet pipe; 13. Outlet pipe; 14. Electric brush holder assembly; 15. Brush holder; 16. Silicone scraper; 17. Filter screen; 18. Drive motor.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

Embodiment one

With reference to accompanying drawing 1-2, a kind of novel full-automatic tubular ultrafiltration membrane pretreatment filtering device comprises self-cleaning filter 1, bypass system and control system, and bypass system comprises basket filter 2, inlet pipeline 12 and The outlet pipeline 13, the water inlet end of the self-cleaning filter 1 and the water outlet end of the basket filter 2 are all fixed and communicated with the inlet pipeline 12, and the water outlet end of the self-cleaning filter 1 and the water inlet end of the basket filter 2 are both fixed and connected. It is fixed and communicated with the outlet pipe 13, thereby forming a circulating waterway. The control system includes a control cabinet 3, and also includes an inlet water pressure transmitter 6 and an outlet water flowmeter 7 electrically connected to the control cabinet 3. The inlet water pressure transmitter The device 6 is set on the inlet pipe 12, the outlet flow meter 7 is set on the outlet pipe 13, the self-cleaning filter 1, the basket filter 2 and the control cabinet 3 are all installed on the filter skid mount 8, and the inlet pipe 12 is set There is a filter skid-mounted general inlet 4, and the outlet pipeline 13 is provided with a filter skid-mounted general outlet 5, the self-cleaning filter 1 and the basket filter 2 both include a water valve 11, and the self-cleaning filter 1 also includes a self-cleaning sewage outlet 9 And self-cleaning backwash water inlet 10.

The working principle of a new type of fully automatic tubular ultrafiltration membrane pretreatment filter device based on embodiment 1 is: when the device is in normal operation, it first plays a role through the self-cleaning filter, and the self-cleaning filter will filter the incoming liquid Filtration, during the entire filtration process, when the control system detects that the flow rate at the back end of the self-cleaning filter decreases or the pressure at the front end of the filter increases through the water inlet pressure transmitter 6 or the water outlet flowmeter 7, after a delay of 5 seconds , start the water inlet valve of the basket filter 2 in the bypass system, delay 20 seconds to close the water inlet valve of the self-cleaning filter after the water inlet valve of the basket filter 2 is opened, and the self-cleaning filter is turned on to recoil and self-clean and discharge In this mode, the water enters through the self-cleaning and backwashing water inlet 10. After the cleaning is completed, it can be discharged through the self-cleaning sewage outlet 9. When the self-cleaning time is up, stop the backflushing and self-cleaning discharge mode, and open the self-cleaning filter to enter the water Valve, after opening the water inlet valve of the self-cleaning filter, delay 20 seconds to close the water inlet valve of the basket filter 2, and the equipment enters the filtration process again, so as to realize the high-efficiency filtration of the nitrifying liquid in the aeration tank, and discharge the mixed water through the discharge system The mechanical impurities in the sludge protect the external MBR membrane system from wear and clogging during operation, so as to stabilize the process and ensure safe production.

Embodiment two

With reference to accompanying drawing 3, on the basis of embodiment one, self-cleaning filter 1 is also provided with electric rotating brush holder assembly 14, and electric rotating brush holder assembly 14 comprises driving motor 18, and the output end of driving motor 18 is installed with the Clean the brush holder 15 in the filter 1, the brush holder 15 is equipped with a silica gel scraper 16 and a filter screen 17, and the filter screen 17 is made of 316L stainless steel plate material.

In this embodiment, when the self-cleaning filter plays a role, the self-cleaning filter will filter the incoming liquid. During the whole filtering process, the electric rotating brush holder assembly 14 will work, start the drive motor 18 to drive the brush holder 15 to rotate, The silica gel scraper 16 will scrape off the impurities on the inner wall of the self-cleaning filter 1, and the filter screen 17 can filter the liquid. The filter screen 17 has uniform gaps, reliable strength, high retention efficiency, and can withstand high-concentration salt water corrosion. In this embodiment Among them, the filtering accuracy is 800um, and the filtering and cleaning effect is better than that of the traditional filter. The bypass system adopts a stable and reliable basket filter with high mechanical strength and is not easy to be damaged. At the same time, the system is equipped with pressure transmitters, automatic valves, and control boxes to realize the unattended and fully automatic operation of the system.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it should not be construed as limiting the invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, any person familiar with the technical field within the technical scope disclosed in the present invention, according to the technical solution of the present invention Any equivalent replacement or change of the inventive concepts thereof shall fall within the protection scope of the present invention.

Claims (6)

1. A novel full-automatic tubular ultrafiltration membrane pretreatment filter device is characterized in that it comprises a self-cleaning filter (1), a bypass system and a control system, and the bypass system comprises a basket filter (2), an inlet Pipeline (12) and outlet pipeline (13), the water inlet end of described self-cleaning filter (1) and the water outlet end of described basket filter (2) are all fixed and communicated with described inlet pipeline (12), The water outlet end of the self-cleaning filter (1) and the water inlet end of the basket filter (2) are fixed and communicated with the outlet pipeline (13), and the control system includes a control cabinet (3) and A water inlet pressure transmitter (6) and an outlet water flow meter (7) electrically connected to the control cabinet (3), the water inlet pressure transmitter (6) is arranged on the inlet pipe (12) , the outlet water flow meter (7) is arranged on the outlet pipe (13). 2. a kind of new full-automatic tubular ultrafiltration membrane pretreatment filtering device according to claim 1, is characterized in that, described self-cleaning filter (1), described basket filter (2) and described The control cabinets (3) are all installed on the filtering skid-mounted base (8). 3. a kind of novel full-automatic tubular ultrafiltration membrane pretreatment filtering device according to claim 1, is characterized in that, described inlet pipe (12) is provided with filter skid-mounted general inlet (4), and described outlet The pipeline (13) is provided with a filter skid mounted general outlet (5). 4. a kind of novel full-automatic tubular ultrafiltration membrane pretreatment filtering device according to claim 1, is characterized in that, described self-cleaning filter (1) and described basket filter (2) all comprise water valve (11). 5. a kind of novel full-automatic tubular ultrafiltration membrane pretreatment filtering device according to claim 1, is characterized in that, described self-cleaning filter (1) also comprises self-cleaning blowdown outlet (9) and self-cleaning reverse Wash the water inlet (10), and the self-cleaning filter (1) is also provided with an electric rotating brush holder assembly (14). 6. a kind of novel full-automatic tubular ultrafiltration membrane pretreatment filtering device according to claim 5, is characterized in that, described electric turning brush holder assembly (14) comprises driving motor (18), and described driving motor The output end of (18) is equipped with the brush holder (15) that is positioned at described self-cleaning filter (1), and described brush holder (15) is equipped with silica gel scraper (16) and filter screen (17).

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