CN208193874U - A kind of anti-clogging filter pool - Google Patents

Abstract

An anti-blocking filter tank comprises a filter tank; a flow direction separation cover is arranged in the filter tank; the space between the flow direction separation cover and the filter tank is a water flow descending channel, and the upper part of the water flow descending channel is provided with a water inlet; a filter is arranged in the flow direction separation cover, and an opening is formed in the bottom of the flow direction separation cover; the space between the side wall of the separation cover and the filter is a water flow ascending channel; the inside of the filter is provided with a water collecting channel which is communicated with the outside of the filter tank through a water producing pipe; the beneficial effects are that: the filter is flushed by the air bubbles discharged by the air distribution device, and meanwhile, the filter is shaken in water by the falling of the water level, so that the filter is further flushed; the gravity and buoyancy are fully utilized, so that the entering flocculated water is automatically divided into high turbidity current and low turbidity current; the large-particle sludge is directly separated, so that the burden and the loss of the filter are reduced, and a sedimentation tank and a sand filter can be replaced at the same time.

Description

A kind of anti-clogging filter pool

technical field

The utility model belongs to the field of sewage treatment, in particular to an anti-clogging filtering device and a working method.

Background technique

In urban sanitation work, it is necessary to regularly remove garbage, sludge, etc. in the sewer to ensure the smooth flow of the sewer. With the rapid development of urban construction in our country, the length of urban sewers has also increased rapidly, and the dredging work of sewers has become more and more arduous. The composition of sewage sludge is complex. In addition to containing a large amount of water, it also contains a large amount of organic matter, refractory organic matter, various trace elements, pathogenic microorganisms and parasite eggs, heavy metals and salts. The harmless and resource utilization of complex urban sewer sludge has become a new difficulty and challenge in the comprehensive environmental management work.

In the traditional sewage treatment system, the sedimentation and sedimentation of the sedimentation tank are indispensable parts. At the same time, it occupies a large area and directly increases the investment of the factory, and the fixed design water volume determines that it cannot accept large fluctuations in the water volume. The swelling of the sludge and the flocculation effect of the influent also directly affect the water quality of the effluent.

Existing filter equipment generally needs to create a differential pressure, and the differential pressure needs to consume more energy. The filter device is prone to the problem of filter clogging, and excessive impurities can easily block the filter holes, thereby affecting the filtering effect; the existing solutions cannot solve the clogging problem well, and the operation is difficult, resulting in increased filtration costs.

The existing technology is not targeted enough, and cannot distribute and filter the sludge of different particle sizes, resulting in a short service life of the filter device and easy damage to the filter element. Or the device structure is complex and the cost of use is high. At the same time, the existing equipment occupies a large area and consumes a lot of energy.

Utility model content

In order to solve the above problems, the utility model adopts the following technical solutions:

An anti-clogging filter tank, including a filter tank; the inside of the filter tank is provided with a flow direction partition cover;

The space between the flow direction partition cover and the filter tank is a water flow downward channel, and the upper part of the water flow downward channel is provided with a water inlet;

A filter is provided in the flow partition cover, and an opening is provided at the bottom of the flow partition cover; the space between the side wall of the partition cover and the filter is a water flow upward channel;

The interior of the filter is a water collection channel, and the water collection channel communicates with the outside of the filter tank through a water production pipe;

The bottom of the filter tank is a sludge collection area, and a sludge discharge port is opened at the bottom of the sludge collection area;

An air distribution device is provided below the filter.

Preferably, a buffer zone is provided between the flow direction separation cover and the sludge collection area.

Preferably, the air distribution device is the same as the outside of the filter tank through the air pipe.

Preferably, the height of the water inlet is higher than that of the water production pipe, and the height difference between the two is greater than 0.5m.

Preferably, the filter is not fixed to the flow direction partition cover.

Preferably, the filter is of granular type.

Preferably, a water collection cavity connecting the water collection channel and the water production pipe is provided above the flow direction partition cover.

Preferably, the space between the water collection cavity and the inner wall of the filter tank is a water inlet channel, and the water inlet channel communicates with the water inlet and the outside of the filter tank.

A working method for an anti-clogging filter pool, specifically comprising the following steps:

a. Open the water inlet and water production pipe, and close the mud discharge port;

b. Enter water through the water inlet, and the water flows through the filter to reach the water collection channel;

c. Leaving the filter tank from the water production pipe through the pressure difference;

d. Close the water inlet and water production pipe;

e. Ventilate the air distribution device through the air pipe, and at the same time, open the mud discharge port;

f. Upwelling air bubbles and vibrating water flow reset the filter particles in the filter.

The beneficial effects of the utility model are:

1. The filter is washed by the air bubbles discharged from the air distribution device, and at the same time, the filter is shaken in the water by the drop of the water level, which further plays a role in washing the filter;

2. Make full use of gravity and buoyancy, so that the incoming flocculation water is automatically divided into high turbidity flow and low turbidity flow; realize the direct separation of large particle sludge, thereby reducing the burden and loss of the filter, and can replace the sedimentation tank and sand at the same time Filter;

3. The equipment structure is simple, which reduces the cost and simplifies the operation and maintenance process;

4. Equipped with an exhaust device, which can clean the filter well;

5. The equipment occupies a smaller area, which is about 1/10 of the traditional equipment, increasing the filtration area;

6. Work through the gravity of water flow, as long as there is water flow, it can work without external energy support, saving energy and being more environmentally friendly;

7. The filter material can be reset by discharging mud, which greatly reduces the possibility of system fouling.

Description of drawings

Fig. 1 is a kind of structural representation of the utility model;

Fig. 2 is another structural schematic diagram of the utility model.

In the figure: 1 filter pool, 21 water inlet, 30 flow partition cover, 31 water collection channel, 300 water flow upstream channel, 301 water flow downstream channel, 40 filter, 50 buffer zone, 60 sludge collection area, 61 sludge discharge outlet.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described:

An anti-clogging filter tank, comprising a filter tank 1; the inside of the filter tank 1 is provided with a flow direction partition cover 30;

The space between the flow partition cover 30 and the filter tank 1 is a water flow down channel 301, and the upper part of the water flow down channel 301 is provided with a water inlet 21;

A filter 40 is provided in the flow partition cover 30 , and an opening is provided at the bottom of the flow partition cover 30 ; the space between the side wall of the partition cover 30 and the filter 40 is a water flow upward channel 300 ;

The inside of the filter 40 is a water collection channel 31, and the water collection channel 31 communicates with the outside of the filter tank 1 through the water production pipe 310;

The bottom of the filter tank 1 is a sludge collection area 60, and the bottom of the sludge collection area 60 is provided with a sludge discharge port 61;

An air distribution device is arranged below the filter 40 .

A buffer zone 50 is provided between the flow separation cover 30 and the sludge collection area 60 .

The air distribution device is the same as the outside of the filter tank 1 through the air pipe.

The height of the water inlet 21 is higher than that of the water production pipe 310, and the height difference between the two is greater than or equal to 0.5m.

The filter 40 is not fixed to the flow-direction partition cover 30 , and only the bottom of the flow-direction partition cover 30 is provided with an opening.

The filter 40 is a particle type, and there are several filter particles inside the particle type filter. The water flow passes through the gaps between the particles, and the impurities cannot completely pass through the gaps between the particles due to their large volume and are separated from the water flow. to make it easier to reset.

Alternatively, a water collection cavity 11 connecting the water collection channel 31 and the water production pipe 310 is provided above the flow partition cover 30. After the filtration is completed, the water intake can also be passed through the water production pipe 310 to remove impurities in the filter 40. Impact; the space between the water collection chamber 11 and the inner wall of the filter tank 1 is the water inlet channel 12, and the water inlet channel 12 communicates with the water inlet 21 and the outside of the filter tank 1. The water channel 12 then flows downward along the compartment space and continues to flow downward through the water inlet 21 .

A working method for an anti-clogging filter pool, specifically comprising the following steps:

a. Open the water inlet 21 and the water production pipe 310, and close the mud discharge port 61;

b. Water enters through the water inlet 21, and the water flows through the filter 40 and reaches the water collection channel 31;

c. leave the filter tank 1 from the water production pipe 310 through the pressure difference;

d. close the water inlet 21 and the water production pipe 310;

e. Ventilate the air distribution device through the air pipe, and at the same time, open the mud discharge port 61 .

A kind of working mode of the present utility model is:

Close the mud discharge port 61, enter water through the water inlet 21, and the water flows downward through the water flow down channel 301. Due to the inertia of the impurities in the water, when the water flows down to the buffer zone 50, the impurities with larger particles have a greater inertia and will Continue to sink through the buffer zone 50, and then sink to the sludge collection area 60; while the impurities with smaller particles will flow with the water, flow upward, reach the outside of the filter 40, and partly enter the water flow upward channel 300, and the water flow passes through the filter 40. Smaller particles of impurities are blocked by the filter 40, and clean water enters the water collection channel 31. Because of the pressure difference, half of the water in the water collection channel 31 leaves the filter tank directly from the water production pipe 310.

After the filtration is completed, the water inlet 21 and the produced water pipe 310 are closed.

The sludge discharge port 61 is opened, and the sludge in the sludge collection area 60 is directly discharged from the sludge discharge port 61 . At the same time, the air distribution device is ventilated through the trachea; the water level in the filter tank 1 drops, because the filter 40 is not fixedly connected with the flow separation cover 30, and it is suspended in the water by buoyancy, so the filter 1 will drop with the drop of the water level . The shaking of the water level has a cleaning effect on the filter 1, which can wash away the impurities attached to it; the water bubbles generated by the air distribution device below the filter 1, the water bubbles will continue to rise, and the filter will be washed away. The impurities in the filter 1 are flushed, and the impurities are mixed into the water again, and flow out from the mud discharge port 61 with the water flow.

Small filter particles are used in the filter 40. During the process of water shaking and air bubble washing, the small filter particles are more likely to be impacted and displaced, and the filter particles in the filter 40 are reset, so that the dirt in the particle gap is more convenient. The mud is washed out, and then discharged from the mud discharge port 61 with the water flow.

The "upper and lower" in this article refer to the orientation in Figure 1, which is for the convenience of expression and has no other special meaning. The outside of the filter pool refers to the outer space of the filter pool, which is used to distinguish it from the inside of the filter pool.

In addition, the utility model is not limited to the above-mentioned embodiments, as long as they achieve the technical effect of the utility model by basically the same means, they should all belong to the protection scope of the utility model.

Claims (8)

1. a kind of anti-blocking filtering pond, it is characterised in that: including filtering ponds (1)；It is equipped with flow direction inside the filtering ponds (1) and separates cover (30)；

The flow direction separates the clearance space of cover (30) and the filtering ponds (1) for water flow down going channel (301), under the water flow Row of channels (301) top is equipped with water inlet (21)；

The flow direction, which separates in cover (30), is equipped with filter (40), and the flow direction separates cover (30) bottom and is equipped with opening；Described point Every cover (30) side wall and the filter (40) clearance space be water flow data feedback channel (300)；

It is collecting channel (31) that the collecting channel (31) passes through water producing pipe (310) and the mistake inside the filter (40) The external world in filter tank (1) communicates；

Filtering ponds (1) bottom is sludge collecting region (60), and sludge collecting region (60) bottom offers mud discharging mouth (61)；

Distribution device is equipped with below the filter (40).

2. a kind of anti-blocking filtering pond according to claim 1, it is characterised in that: the flow direction separates cover (30) and the dirt Buffer area (50) are equipped between mud collecting region (60).

3. a kind of anti-blocking filtering pond according to claim 1, it is characterised in that: the distribution device by tracheae with it is described The external world of filtering ponds (1) is identical.

4. according to a kind of anti-blocking filtering pond according to claim 1, it is characterised in that: water inlet (21) the setting height Greater than the water producing pipe (310), and the two difference in height is greater than or equal to 0.5m.

5. according to a kind of anti-blocking filtering pond according to claim 1, it is characterised in that: the filter (40) is not secured to The flow direction separates cover (30).

6. according to a kind of anti-blocking filtering pond according to claim 1, it is characterised in that: the filter (40) is particle Type.

7. according to a kind of anti-blocking filtering pond according to claim 1, it is characterised in that: the flow direction separates above cover (30) Equipped with the water collection chamber (11) for being connected to the collecting channel (31) with the water producing pipe (310).

8. according to a kind of anti-blocking filtering pond according to claim 7, it is characterised in that: the water collection chamber (11) and the mistake Filter tank (1) inner wall clearance space is intake tunnel (12), and the intake tunnel (12) is connected to the water inlet (21) and the mistake The external world in filter tank (1).