CN212854794U

CN212854794U - Multifunctional full-automatic filtering equipment

Info

Publication number: CN212854794U
Application number: CN202021502801.5U
Authority: CN
Inventors: 梁振兴
Original assignee: Shaanxi Win Life Energy Saving Environment Technology Group Co ltd
Current assignee: Shaanxi Win Life Energy Saving Environment Technology Group Co ltd
Priority date: 2020-07-27
Filing date: 2020-07-27
Publication date: 2021-04-02
Anticipated expiration: 2030-07-27

Abstract

The utility model discloses a multi-functional full-automatic filtration equipment, include: a water inlet, a water outlet, a cleaning device, a filter screen and a backflow port; the equipment is continuous and circulating filtration equipment with lower inlet and upper outlet; the water inlet is positioned at the bottom end of the filtering device, the water outlet is positioned at the upper part of the side surface of the filtering device, and the backflow port is positioned at the top end of the filtering device; the equipment is also provided with an air backwashing device, and an air inlet of the air backwashing device is positioned at the lower part of the filtering equipment; the cleaning device is positioned in the middle of the filtering equipment; the air backwashing device can operate independently or simultaneously with the cleaning device to carry out air-water combined backwashing. The whole equipment adopts an annular structure, sewage flows from bottom to top, most of mixed liquor flows back to the front section, and a small part of sewage is discharged after being filtered, so that the investment of subsequent equipment such as a mechanical filter, a sand rate and the like is reduced; the filter equipment is simple and occupies small area.

Description

Multifunctional full-automatic filtering equipment

Technical Field

The utility model belongs to the technical field of sewage treatment, a multi-functional full-automatic filtration equipment is related to.

Background

The AAO process is a treatment technology initiated in the early 80 s, is a typical denitrification and dephosphorization process, and a biological reaction tank of the AAO process consists of three sections, namely an anaerobic section, an anoxic section and an aerobic section. The plug-flow type pre-denitrification process is characterized in that three sections of anaerobic, anoxic and aerobic processes have definite functions and are well defined, the space-time proportion and the operation condition can be artificially created and controlled according to the water inlet condition and the water outlet requirement, and the higher denitrification rate and the removal of organic matters can be achieved as required as long as the carbon source is sufficient.

The anaerobic phase of the AAO process is the key to phosphorous removal by the process. The sewage and the return sludge from the secondary sedimentation tank are fully mixed in the anaerobic tank, phosphorus accumulating bacteria in the activated sludge release phosphorus in cell substances, the phosphorus accumulating bacteria exist in a soluble phosphate form, and the phosphorus accumulating bacteria can absorb several times of the released phosphorus from the sewage in an aerobic stage through the release of the phosphorus, namely, the phosphorus is excessively absorbed, so that the aim of biological phosphorus removal is fulfilled. Practice proves that the phosphorus-accumulating bacteria have good phosphorus release effect and depend on ideal anaerobic environment (containing neither molecular oxygen nor combined oxygen), the CODCr/P value of sewage (generally required to be more than 10: 1), high return sludge concentration (MLSS) and relatively long anaerobic hydraulic retention time HRT (generally 0.5-1.5 hr). While anaerobic conditions and CODCr/P values are most basic and most important.

A²the/O process is widely applied to urban sewage treatment plants due to the advantages of stable effect, mature design theory and method, wide adaptability and the like. The above two devices have stable treatment effect, but have some disadvantages including: firstly, the effluent suspended matter is higher; secondly, the occupied area is large after mechanical filtration is added; filtering power consumption is large, and operation cost is high; and fourthly, backwashing is frequently performed, and the treatment efficiency is low.

Disclosure of Invention

To above defect, the utility model provides a multi-functional full-automatic filtration equipment can effectively solve the weak point that current processing technology exists.

The technical scheme of the utility model is that: a multi-functional fully automatic filtration apparatus comprising: a water inlet, a water outlet, a cleaning device, a filter screen and a backflow port; the equipment is continuous and circulating filtration equipment with lower inlet and upper outlet; the water inlet is positioned at the bottom end of the filtering device, the water outlet is positioned at the upper part of the side surface of the filtering device, and the backflow port is positioned at the top end of the filtering device; the equipment is also provided with an air backwashing device, and an air inlet of the air backwashing device is positioned at the lower part of the filtering equipment; the cleaning device is positioned in the middle of the filtering equipment; the air backwashing device can operate independently or simultaneously with the cleaning device to carry out air-water combined backwashing.

Further, the filter screen is made of a high-strength stainless steel mesh sheet of 10-100 microns.

Further, the cleaning device is a scraper type cleaning device, and the cleaning device completes cleaning work by adopting rotary rotation of a scraper and automatic circulation of raw water.

Furthermore, the multifunctional full-automatic filtering equipment adopts the combined action of self flushing generated by water inlet and outlet pumping, a cleaning function generated by the rotation of a scraper in the cleaning device and the backwashing of air and clean water in the air backwashing device to complete the filtering work.

Further, the inside of the multifunctional full-automatic filtering equipment is of an annular structure.

Further, the multifunctional full-automatic filtering equipment is cylindrical in shape.

Further, a multi-functional full-automatic filtration equipment, filtration equipment can directly be used for mud backwash pump back end, can directly go on out water.

The invention has the beneficial effects that: the whole equipment adopts an annular structure, sewage flows from bottom to top, most of mixed liquor flows back to the front section, and a small part of sewage is discharged after being filtered, so that the investment of subsequent equipment such as a mechanical filter, a sand rate and the like is reduced; the filter equipment is simple, the occupied area is small, and the occupied area is reduced by 25-50% compared with that of the traditional equipment; the equipment is added in the reflux process, so that the functional consumption of secondary lifting and the like of the traditional filtration is reduced, and the operating cost is reduced by about 50-70%; the water flow state adopts a fluidized state design, the treatment efficiency of the equipment is further improved, the volume of the whole equipment is reduced, and the equipment cost is reduced by 15-30% compared with that of the traditional equipment; the filter screen of the equipment can effectively remove pollutants in water, and the removal effect is that the average removal rate of COD, SS, TP, TN and ammonia nitrogen is 14.24%, 71.33%, 62.46%, 6.35% and 12.97% respectively.

Drawings

Fig. 1 is a schematic elevation view of a multifunctional fully automatic filtering apparatus of the present invention;

wherein: 1 water inlet, 2 water outlets, 3 air backwashing devices, 4 filter screens, 5 cleaning devices and 6 return ports.

Detailed Description

The technical solution of the present invention is described below with reference to the accompanying drawings.

As shown in fig. 1, a multifunctional full-automatic filtering apparatus includes: the device comprises a water inlet 1, a water outlet 2, a cleaning device 5, a filter screen 4 and a backflow port 6; the equipment is continuous and circulating filtration equipment with lower inlet and upper outlet; the water outlet 2 is positioned at the upper part of the side surface of the filtering equipment, and the return port 6 is positioned at the top end of the filtering equipment; the equipment is also provided with an air backwashing device 3, and an air inlet of the air backwashing device 3 is positioned at the lower part of the filtering equipment; the cleaning device 5 is positioned in the middle of the filtering equipment; the air backwashing device 3 can be operated independently or simultaneously with the cleaning device 5 to carry out air-water combined backwashing.

In this embodiment, the cleaning device 5 is a wiper type cleaning device; the filter screen 4 is made of a high-strength stainless steel mesh sheet with the thickness of 10-100 microns.

When the air backwashing device 3 operates independently, the cleaning device 5 adopts the rotary rotation of the scraping blades and the automatic circulation of raw water to complete the cleaning work.

When the air backwashing device 3 and the cleaning device 5 simultaneously carry out air-water contact backwashing, the filtering equipment adopts the combined action of self flushing generated by the water inlet and outlet pumping, the cleaning function generated by the rotation of a scraper in the cleaning device 5 and the backwashing of neutralizing air and clear water in the air backwashing device 3 to complete the filtering work.

In order to further improve the filtering effect of the filtering equipment, the interior of the filtering equipment is arranged to be of an annular structure; the filtering device is cylindrical in shape.

The utility model discloses a multi-functional full-automatic filtration equipment is little because of the simple area of equipment, can directly be used for the mud backwash pump back end, can directly go out water.

The utility model discloses a multi-functional full-automatic filtration equipment during operation, the mud backwash pump starts, and mud and water get into from water inlet 1, and most mixed liquid is discharged from backward flow mouth 6, and partial clear water passes through filter screen 4, discharges from delivery port 2, and sewage is at the in-process that rises, drives the mud on the net piece together and flows back to the oxygen deficiency pond, and clean sewage is up to standard to discharge. During the ascending process of the sewage, part of the sludge is adhered to the filter screen 4, is continuously stirred and scraped by the stirring scraping blade, and finally flows back to the anoxic zone together with the sewage. After the filter runs for a long time, when the filter has certain dirt blockage and cannot be cleaned, air is used for scrubbing, when the dirt blockage is serious, the mixed clean water pump is subjected to steam-water combined backwashing, and after the flushing is finished, the mixed clean water pump enters the next round of filtering again.

Claims

1. A multi-functional fully automatic filtration apparatus comprising: the water inlet (1), the water outlet (2), the cleaning device (5), the filter screen (4) and the backflow port (6); the method is characterized in that: the equipment is continuous and circulating filtration equipment with lower inlet and upper outlet; the water inlet (1) is positioned at the bottom end of the filtering device, the water outlet (2) is positioned at the upper part of the side surface of the filtering device, and the backflow port (6) is positioned at the top end of the filtering device; the equipment is also provided with an air backwashing device (3), and an air inlet of the air backwashing device (3) is positioned at the lower part of the filtering equipment; the cleaning device (5) is positioned in the middle of the filtering equipment; the air backwashing device (3) can operate independently or simultaneously with the cleaning device (5) to carry out air-water combined backwashing.

2. The multifunctional full-automatic filtering device according to claim 1, characterized in that: the filter screen (4) is made of a high-strength stainless steel mesh sheet with the thickness of 10-100 microns.

3. The multifunctional full-automatic filtering device according to claim 1, characterized in that: the cleaning device (5) is a scraper type cleaning device.

4. The multifunctional full-automatic filtering equipment according to claim 3, characterized in that: when the air backwashing device (3) operates independently, the cleaning device (5) completes cleaning work by adopting the rotary rotation of the scraping blade and the automatic circulation of raw water.

5. The multifunctional full-automatic filtering equipment according to claim 3, characterized in that: the air backwashing device (3) and the cleaning device (5) operate simultaneously, and when air-water combined backwashing is carried out, the filtering equipment adopts self washing generated by water inlet and outlet pumping, cleaning function generated by scraper rotation in the cleaning device (5), and backwashing combined action of air and clean water in the air backwashing device (3) to complete filtering work.

6. The multifunctional full-automatic filtering device according to any one of claims 1 to 5, characterized in that: the inside of the filtering device is of an annular structure.

7. The multifunctional full-automatic filtering device according to any one of claims 1 to 5, characterized in that: the filtering device is cylindrical in shape.

8. The multifunctional full-automatic filtering device according to any one of claims 1 to 5, characterized in that: the filtering equipment can be directly used for the rear section of the sludge reflux pump and can directly discharge water.