CN215049038U

CN215049038U - Automatic backwashing denitrification filter device

Info

Publication number: CN215049038U
Application number: CN202120928970.3U
Authority: CN
Inventors: 赵晓磊; 郭鹏; 陈楠; 潘俊杰; 周钰; 苗成龙
Original assignee: Lvheng Beijing Environmental Protection Engineering Co ltd
Current assignee: Lvheng Beijing Environmental Protection Engineering Co ltd
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2021-12-07
Anticipated expiration: 2031-04-30

Abstract

The utility model relates to an automatic backwash denitrification filter device belongs to sewage treatment device technical field. The device mainly comprises a water inlet distribution tank, a filter tank main body device, a backwashing water discharge tank, a siphon backwashing pipeline branch pipe, a siphon backwashing stop pipe, an exhaust pipe, a gas backwashing pipeline, a liquid level sensor K01 and a rotary brush aeration device B01, wherein the water inlet distribution tank is communicated with the filter tank main body device, the filter tank main body device is communicated with the backwashing water discharge tank through the siphon backwashing pipeline, the siphon backwashing pipeline is provided with the siphon stop pipe, the siphon backwashing pipeline branch pipe and the exhaust pipe, the filter tank main body device is internally provided with the gas backwashing pipeline, the liquid level sensor K01 is arranged on the backwashing water discharge tank, and the rotary brush aeration device B01 is arranged in the water inlet distribution tank; adopt to change brush aeration equipment to oxygenate in advance, equipment aeration system, backwash system are external, and it is comparatively convenient to overhaul the maintenance, can siphon automatic backwash, practices thrift the operation cost.

Description

Automatic backwashing denitrification filter device

Technical Field

The utility model belongs to the technical field of sewage treatment device, concretely relates to automatic backwash denitrification filtering pond device.

Background

The existing filter tank equipment mostly adopts bottom water inlet and water distribution, a filter material adopts a substance with density larger than that of water as a filler, a backwashing pipeline is also positioned at the bottom for covering and burying pressure of the filler, and the phenomena of uneven water and gas distribution, local dead zones and the like of the equipment caused by blockage easily occur in a water inlet and water distribution system, an aeration system or a backwashing system, so that the operation effect of the equipment is influenced, the overhaul time is longer, and the maintenance is complicated.

Disclosure of Invention

In order to overcome the problems that the prior art is easy to cause the phenomena of uneven water and gas distribution, local dead zones and the like of equipment due to blockage, thereby influencing the operation effect of the equipment, having longer maintenance time and fussy maintenance, the utility model provides an automatic backwashing denitrification filter device, a rotary brush aeration device is oxygenated in advance, an aeration system and a backwashing system are arranged externally, and the maintenance is more convenient; the automatic control system of the drainage box of the system can reduce manual operation; and the automatic back flushing of the siphon saves the operation cost.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: an automatic backwashing denitrification filter device mainly comprises a water inlet distribution tank, a filter body device, a siphon backwashing water receiving bin, a filter material partition plate, a water inlet and distribution partition plate, a backwashing water discharging tank, a first water inlet pipeline, a second water inlet pipeline, a siphon backwashing pipeline branch pipe, a siphon backwashing stopping pipe, an exhaust pipe, a gas backwashing pipeline, a liquid level sensor K01 and a rotary brush aeration device B01, wherein the tail end of the first water inlet pipeline is communicated with the water inlet distribution tank, the water inlet distribution tank is communicated with the filter body device through the second water inlet pipeline, the filter body device is communicated with the backwashing water discharging tank through the siphon backwashing pipeline, the siphon backwashing water receiving bin is arranged at the bottom of the filter body device, the filter body device is internally provided with the filter material partition plate, the water inlet distribution partition plate is arranged above a water outlet of the backwashing water receiving bin, and the filter body device is filled with filler, a siphon backwashing stop pipe, a siphon backwashing pipeline branch pipe and an exhaust pipe are arranged on the siphon backwashing pipeline, a gas backwashing pipeline is arranged inside the filter tank main body device, a liquid level sensor K01 is arranged on a backwashing drainage tank, and a rotary brush aeration device B01 is arranged in a water inlet water distribution tank; the first water inlet pipeline, the second water inlet pipeline and the exhaust pipe are respectively provided with a valve F01, a valve F02 and a valve F05, and the tail end of the siphon backwashing pipeline is provided with a valve F04; the top of the filter tank main body device is provided with a water outlet, the bottom of the filter tank main body device is provided with a bottom sewage outlet, and the bottom of the backwashing water discharge tank is provided with a water tank water outlet.

And a water tank drain pipe for siphon drainage is arranged in the backwashing drainage tank.

The first water inlet pipeline is communicated with the second water inlet pipeline through a communicating pipe, and a valve F03 is arranged on the communicating pipe.

The water inlet and distribution partition is divided into 2-5 layers which are annularly arranged.

The filler in the filter tank main body device is a foam filter bead filter material.

The gas backwashing pipeline comprises a gas inlet main pipe and a branch pipeline, wherein the branch pipeline is vertically connected with the gas inlet main pipe, and the side wall of the filling area of the branch pipeline is provided with a hole.

The utility model has the advantages that:

the utility model discloses a change brush aeration equipment and oxygenate in advance, equipment aeration system, backwash system are external, and it is comparatively convenient to overhaul the maintenance, can the automatic backwash of siphon, practices thrift the operation cost.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a sectional view of the main body unit of the filter and the air-washing pipeline.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the following will explain in detail a preferred embodiment of the present invention with reference to the accompanying drawings to facilitate understanding of the skilled person.

The utility model discloses an automatic backwashing denitrification filter device, which mainly comprises a water inlet and distribution tank 1, a filter main body device 2, a siphon backwashing water receiving bin 21, a filter material partition plate 22, a water inlet and distribution partition plate 23, a backwashing drainage tank 3, a first water inlet pipeline 4, a second water inlet pipeline 40, a siphon backwashing pipeline 5, a siphon backwashing pipeline branch pipe 6, a siphon backwashing stop pipe 7, an exhaust pipe 8, a gas backwashing pipeline 13, a liquid level sensor K01 and a rotary brushing aeration device B01, wherein the tail end of the first water inlet pipeline 4 is communicated with the water inlet and distribution tank 1, the water inlet and distribution tank 1 is communicated with the filter main body device 2 through the second water inlet pipeline 40, the filter main body device 2 is communicated with the backwashing drainage tank 3 through the siphon pipeline 5, the bottom of the filter main body device 2 is provided with the siphon backwashing water receiving bin 21, the filter material partition plate 22 is arranged in the filter main body device 2, a water inlet and distribution partition plate 23 is arranged above a water outlet of the siphon backwashing water receiving bin 21, filler is filled in the filter tank main body device 2, a siphon backwashing stop pipe 7, a siphon backwashing pipeline branch pipe 6 and an exhaust pipe 8 are arranged on the siphon backwashing pipeline 5, a gas backwashing pipeline 13 is arranged in the filter tank main body device 2, a liquid level sensor K01 is arranged on a backwashing drainage tank 3, a rotary brush aeration device B01 is arranged in the water inlet distribution tank 1, surface aeration oxygenation is adopted for water inlet oxygenation, the uniform distribution of oxygen in water can be ensured, and the distribution of water flow through the water distribution device can ensure the uniform distribution of oxygen in the denitrification device, so that the problem of non-uniform local oxygen supply caused by blockage of the built-in aeration device is avoided; the first water inlet pipeline 4, the second water inlet pipeline 40 and the exhaust pipe 8 are respectively provided with a valve F01, a valve F02 and a valve F05, the exhaust pipe 8 can prevent the gas in the equipment from being discharged, the pipeline 8 is provided with the valve F05, the sealing performance of a siphon pipeline can be ensured when the valve F05 is closed, and the normal operation of a siphon system is ensured; the tail end of the siphon backwashing pipeline 5 is provided with a valve F04; the top of the filter tank main body device 2 is provided with a water outlet 10, the bottom of the filter tank main body device is provided with a bottom sewage outlet 14 (the bottom of the filter tank main body device is manually opened according to the operation condition to discharge deposited sundries at the bottom), the bottom of the backwashing drainage tank 3 is provided with a water tank water outlet 11, a water tank drainage pipe 9 for siphon drainage is arranged in the backwashing drainage tank 3, 2 times of siphon drainage is adopted in the backwashing drainage tank 3 through the water tank drainage pipe 9, the operation of a siphon system can be ensured under automatic control without manual intervention; raw water enters the water inlet distribution tank 1 through a valve F01, is oxygenated through a rotating brush aeration device B01, then automatically flows through a valve F02, enters the siphon backwashing pipeline 5 and then enters the filter tank main body device 2, the valve F04 in the siphon backwashing pipeline 5 is normally open, and the valve F05 on the exhaust pipe 8 is normally open so as to ensure the smooth pipeline; the filler exists in the filter chamber main body device 2 and exists between the filter material partition plates 22, and the filling degree is 70 percent; h1 is the normal operation liquid level difference of the system, because the accumulation of the operation time, the packing in the water will be blocked, when the blocking head loss reaches H4, the raw water will enter the backwash drainage tank 3 through the siphon backwash pipeline branch pipe 6, at this moment, the liquid level sensor K01 will receive the liquid level signal, when the water level reaches H7, the signal is transmitted back to the control cabinet, the valve K05 is closed; when the water level is accumulated to H8, a signal is transmitted back to the control cabinet, a valve F01\02 is closed, a system water inlet pump is closed, the system self-backwashing is started, backwashing water is collected in a siphon backwashing water receiving bin 21 under the action of siphon, flows out from a siphon backwashing pipeline 5, enters the inside of a backwashing water discharge tank 3 and is discharged from a water tank water discharge port 11, and when the backwashing water level is reduced to the height of H2 and reaches the lower opening position of a siphon backwashing stop pipe 7, the siphon system of the system is broken at the moment, and backwashing is stopped; the existence of the water tank drain pipe 9 ensures that the liquid level in the water tank drain pipe 9 can be reduced to below H7, at the moment, signal feedback is carried out, the system is started to operate, the water inlet pump is started, the valve F01\02\05 is started, the system normally feeds water to operate, and when the liquid level reaches the water outlet 10 of the filter main body device 2, the equipment discharges water. The backwashing of the equipment gas washing can be operated according to the running condition of the equipment, and the running of the gas washing stage can also be controlled by a PLC; adopt to change brush aeration equipment to oxygenate in advance, equipment aeration system, backwash system are external, and it is comparatively convenient to overhaul the maintenance, can siphon automatic backwash, practices thrift the operation cost.

The first water inlet pipeline 4 is communicated with the second water inlet pipeline 40 through a communicating pipe, and a valve F03 is arranged on the communicating pipe.

The water inlet and distribution partition 23 is divided into 2-5 layers of annular arrangement, which can ensure the uniformity of water distribution.

The filler in the filter tank main body device 2 is a foam filter bead filter material; the filter material has the advantages of good elasticity, no decay or breakage, small density, light weight, uniform particles, developed micropores, large specific surface area, strong adsorption capacity and the like, is lower in density than water, can float in water and move along with water flow, and has the advantage of suspended filler.

The gas backwashing pipeline 13 comprises a main gas inlet pipe and branch pipelines, the branch pipelines are vertically connected with the main gas inlet pipe, and the side walls of the branch pipelines in the packing area are provided with holes for flushing the packing; the top of gaseous backwash pipeline 13 is arranged, uses with the cooperation of foam filter pearl filter material, and gaseous backwash has better cleaning action to the filler in the suspension aquatic, and regularly open the backwash system, can make the suspension filler evenly distributed, make the inside bacterial colony of device distribute evenly, and the better growth of microorganism can also be solved like this and the problem that the filler hardens.

Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims.

Claims

1. The utility model provides an automatic backwash denitrification filtering pond device which characterized in that: the automatic backwashing denitrification filter device comprises a water inlet distribution tank (1), a filter main body device (2), a siphon backwashing water receiving bin (21), a filter material partition plate (22), a water inlet distribution partition plate (23), a backwashing water discharging tank (3), a first water inlet pipeline (4), a second water inlet pipeline (40), a siphon backwashing pipeline (5), a siphon backwashing pipeline branch pipe (6), a siphon backwashing stop pipe (7), an exhaust pipe (8), a gas backwashing pipeline (13), a liquid level sensor K01 and a rotary brush aeration device B01, wherein the tail end of the first water inlet pipeline (4) is communicated with the water inlet distribution tank (1), the water inlet distribution tank (1) is communicated with the filter main body device (2) through the second water inlet pipeline (40), the filter main body device (2) is communicated with the backwashing water discharging tank (3) through the siphon backwashing pipeline (5), the siphon backwashing water receiving bin (21) is arranged at the bottom of the filter main body device (2), a filter material partition plate (22) is arranged in the filter tank main body device (2), a water inlet and distribution partition plate (23) is arranged above a water outlet of the siphon backwashing water receiving bin (21), filler is filled in the filter tank main body device (2), a siphon backwashing stop pipe (7), a siphon backwashing pipeline branch pipe (6) and an exhaust pipe (8) are arranged on the siphon backwashing pipeline (5), a gas backwashing pipeline (13) is arranged in the filter tank main body device (2), a liquid level sensor K01 is arranged on the backwashing water discharging tank (3), and a rotary brush aeration device B01 is arranged in the water inlet and distribution tank (1); the first water inlet pipeline (4), the second water inlet pipeline (40) and the exhaust pipe (8) are respectively provided with a valve F01, a valve F02 and a valve F05, and the tail end of the siphon backwashing pipeline (5) is provided with a valve F04; the top of the filter tank main body device (2) is provided with a water outlet (10), the bottom of the filter tank main body device is provided with a bottom sewage outlet (14), and the bottom of the backwashing water discharge tank (3) is provided with a water tank water outlet (11).

2. An automatic backwashing denitrification filter device according to claim 1, wherein: a water tank drain pipe (9) for siphon drainage is arranged in the backwashing drain tank (3).

3. An automatic backwashing denitrification filter device as claimed in claim 1 or 2, wherein: the first water inlet pipeline (4) is communicated with the second water inlet pipeline (40) through a communicating pipe, and a valve F03 is arranged on the communicating pipe.

4. An automatic backwashing denitrification filter device according to claim 3, wherein: the water inlet and distribution partition plates (23) are annularly arranged in 2-5 layers.

5. An automatic backwashing denitrification filter device as recited in any one of claims 1, 2 and 4, wherein: the filler in the filter tank main body device (2) is a foam filter bead filter material.

6. An automatic backwashing denitrification filter device according to claim 5, wherein: the gas backwashing pipeline (13) comprises a main gas inlet pipe and branch pipelines, wherein the branch pipelines are vertically connected with the main gas inlet pipe, and the side walls of the branch pipelines in the filling area are provided with holes.