CN210278381U - Quicksand filter for sewage treatment - Google Patents

Abstract

The utility model discloses a quicksand filter for sewage treatment, which comprises a tank body, the surface of the jar body is close to the fixed position of lower extreme and is connected with the supporting leg, surface one side fixedly connected with inlet tube of the jar body, and the surface opposite side fixedly connected with blow off pipe and the drain pipe of the jar body, the drain pipe is located the upside of blow off pipe, the inside of the jar body is provided with sand washer, sand washer is connected with the blow off pipe, sand washer and lower extreme outer fixed surface be connected with a sand washing section of thick bamboo, sand washing section of thick bamboo's lower extreme outer fixed surface is connected with the sand lifting pipe, the outer fixed surface of sand lifting pipe is connected with the drain pipe, the water-locator has been run through to sand lifting. The utility model discloses can increase the mobility of sand bed through adding toper drainage baffle in jar internal portion when using, increase sewage and sand bed contact filter time simultaneously, make its filter effect more excellent, wash a sand section of thick bamboo simultaneously and can make sand grain abluent cleaner.

Description

Quicksand filter for sewage treatment

Technical Field

The utility model relates to a filter equipment technical field specifically is a quicksand filter for sewage treatment.

Background

The sand flowing filter is a deep treatment equipment for surface water supply, industrial water and sewage. The function is to utilize a sand bed with a certain thickness to filter the sewage, thereby reaching the national sewage discharge standard. The traditional quicksand filter has the working principle that after sewage is injected into a sand bed through a water inlet pipe, pollutants such as SS (suspended substances) in the sewage are adsorbed by sand grains, the polluted sand grains are lifted into a sand washer through gas for treatment, the cleaned sand flows back to the sand bed for recycling, and the sand washing sewage is discharged to a relevant treatment unit through a sewage pipe for further treatment. By the mode, the continuous filtration advanced treatment of the sewage is realized;

compared with a quicksand filter CN201820840005.9 in China patent, the quicksand filter CN201820840005.9 has the advantages of a filter box body, a water inlet pipe for sewage to enter the filter box body, a water distributor for uniformly distributing the sewage, a water outlet pipe for discharging water filtered by quicksand, an aeration device for supplying oxygen, a filter plate capable of preventing a small amount of sand or biochemical sludge from floating upwards to influence the effluent water quality, a sand washer for cleaning polluted sand, a sand lifting pipe and an air lift pump for lifting the sand into the sand washer through the sand lifting pipe; a sand bed formed by sand grains is arranged in the filter box body; a sand collecting hopper for collecting the quicksand is formed at the bottom of the filtering box body; one end of the water inlet pipe is communicated with the water distributor; aeration equipment sets up in the sand bed, the utility model discloses an useful part lies in that the aeration equipment of quicksand filter installs in water-locator upper portion oxygen suppliment in order to form good oxygen district, is favorable to good oxygen microorganism to grow up, can make the ammonia nitrogen and the phosphorus in the sewage absorb the degradation by the microorganism. Meanwhile, the aerobic zone aerates to reduce the density of the aerobic zone sand bed, thereby reducing the pressure on the bottom sand bed, avoiding the accumulation of sand particles at the bottom, reducing the head loss, improving the quicksand filtering effect and further improving the effluent quality;

because the flowability of the sand bed is poor, the problems of sand bottom overstock, pipeline blockage and the like easily occur due to overlarge packing density of the sand bed, meanwhile, the cleaning effect of the traditional sand washer in the sand cleaning process is not ideal, and residual pollutants are still attached to the surface of the sand;

therefore, a quicksand filter for sewage treatment is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a quicksand filter for sewage treatment, the device can increase the mobility of sand bed through adding toper drainage baffle in jar internal portion when using, increases sewage and sand bed contact filter time simultaneously, makes its filter effect more excellent, and a sand washing section of thick bamboo can make sand grain abluent cleaner simultaneously to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a quicksand filter for sewage treatment comprises a tank body, wherein a supporting leg is fixedly connected to the position, close to the lower end, of the outer surface of the tank body, a water inlet pipe is fixedly connected to one side of the outer surface of the tank body, a drain pipe and a drain pipe are fixedly connected to the other side of the outer surface of the tank body, the drain pipe is positioned on the upper side of the drain pipe, a sand washer is arranged inside the tank body and connected with the drain pipe, a sand washing barrel is fixedly connected with the outer surface of the lower end of the sand washing barrel, a sand lifting pipe is fixedly connected with the outer surface of the lower end of the sand washing barrel, a drain pipe is fixedly connected with the outer surface of the sand lifting pipe, a water distributor penetrates through one end of the sand lifting pipe and is connected with the drain pipe, an air lifting pump is arranged at the other end of the sand lifting pipe, a drainage, the lower extreme surface of wasing the board splices there is the bump, the drainage hole has been seted up to the upper end surface of drainage baffle, the one end of drain pipe runs through to the inside of the jar body, the internal surface of jar is close to the position fixedly connected with overflow weir of drain pipe.

The device is through adding multiunit toper drainage baffle when using, when utilizing the sand bed to sewage filtration purification, can increase the mobility of sand bed at jar internal portion, avoid the sand bed because of bulk density too big leads to the poor jam pipeline of mobility, toper drainage baffle can prevent to filter the rising speed simultaneously, increase the contact filter time of drainage and sand bed, thereby make the filter effect more excellent, threaded cleaning plate and bump can be washed sand grain with hands, make the cleaning performance of sand grain better.

Preferably, the cleaning plate is in a threaded shape and is equidistantly distributed in the sand washing barrel, and the cleaning plate is made of rubber.

The sand inside the sand extracting pipe is scrubbed, and the cleaning plate made of rubber is corrosion-resistant and wear-resistant.

Preferably, the number of the salient points is a plurality, and the plurality of the salient points are distributed on the outer surfaces of the upper end and the lower end of the cleaning plate at equal intervals.

The salient points increase the contact time of the sand grains and the cleaning plate, so that the sand grains are cleaned more cleanly.

Preferably, the number of the drainage partition plates is three, and the drainage partition plates are fixedly connected to the inner part of the tank body at equal intervals.

The drainage baffle is used for increasing the mobility of the sand bed.

Preferably, the drainage clapboard is conical, and the diameter of the drainage hole is 1-2 cm.

The conical drainage partition plate separates the sand bed layer by layer to avoid the influence on the fluidity of the sand bed due to overlarge stacking density.

Preferably, the tank body is filled with a sand bed, and the water distributor and the sand gathering hopper are both arranged in the sand bed.

The sewage discharged by the sand bed and the water distributor is filtered.

Preferably, the height of the sand washer in the tank body is smaller than the height of the tank body.

The sewage after sand cleaning is discharged through the liquid level difference between the sand washer and the filtered water in the tank body.

Compared with the prior art, the beneficial effects of the utility model are that:

1. a sand washing barrel is fixedly connected with the outer surface of the lower end of a sand washing device, a sand lifting pipe is fixedly connected with the outer surface of the lower end of the sand washing barrel, a cleaning plate is fixedly connected inside the sand washing barrel, salient points are glued to the outer surface of the lower end of the cleaning plate, an air lift pump is arranged at the other end of the sand lifting pipe, a drainage baffle is fixedly connected with the inner surface of a tank body, a drainage hole is formed in the outer surface of the upper end of the drainage baffle, when the sand washing device is used, a user firstly discharges sewage into the tank body through a water inlet pipe and then discharges the sewage into a sand bed through a water distributor, the sewage at the moment permeates through a filter and moves upwards under the action of the sand bed, then the filtered and purified water is discharged to the outside of the tank body through an overflow weir and a drain pipe, the lowest layer of the sand bed inside the tank body is a dirty sand layer, the dirty sand at the moment enters the sand lifting pipe and moves upwards to the, the cleaning plate and the salient points are in continuous contact with the cleaning plate and the salient points in the rising process of the dirty sand, the cleaning plate and the salient points carry out scrubbing work on the dirty sand, the cleaned sand enters the sand washer, at the moment, the cleaning work of the sand is finished, sewage generated by cleaning the sand is discharged to the outside of the tank body through the drain pipe under the action of the liquid level difference between the sand washer and filtered water in the tank body, meanwhile, the drainage partition plate plays a role in interlayer drainage work on the sand bed in the filtering and purifying process of the sand bed, the downward flowability of the sand bed is increased, the filtering and purifying time and area of the sewage and the sand bed can be increased, so that the sewage purifying effect is more excellent, the pipeline blockage caused by the overlarge flowability difference of the stacking density of the sand bed is avoided, the drainage hole plays a role in drainage on the filtered water, the influence of the drainage partition plate on the up-down movement of the filtered water is avoided, and, meanwhile, the contact time and the purification efficiency of the sewage and the sand bed are increased, so that the filtering effect is more excellent, and meanwhile, the sand washing barrel additionally added can enable sand grains to be cleaner.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a combination view of the tank body and the sand extracting pipe of the present invention;

FIG. 3 is a combination view of the sand washing barrel and the cleaning plate of the present invention;

fig. 4 is a combination view of the tank body and the drainage baffle plate of the present invention.

In the figure:

1. a tank body; 2. supporting legs; 3. a sand washer; 4. a water inlet pipe; 5. a water distributor; 6. a gas stripping pump; 7. a sand gathering hopper; 8. an overflow weir; 9. a sand extracting pipe; 10. a drainage baffle plate; 11. a sand washing cylinder; 12. a blow-off pipe; 13. a drain pipe; 14. a drainage hole; 15. cleaning the plate; 16. and (4) bumps.

Detailed Description

In the following, reference will be made to the accompanying drawings in the embodiments of the present invention for clearly and completely describing the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 4, the present invention provides a technical solution:

as shown in fig. 1, the quicksand filter for sewage treatment comprises a tank body 1, wherein a supporting leg 2 is fixedly connected to the position, close to the lower end, of the outer surface of the tank body 1, a water inlet pipe 4 is fixedly connected to one side of the outer surface of the tank body 1, a sewage discharge pipe 12 and a water discharge pipe 13 are fixedly connected to the other side of the outer surface of the tank body 1, and the water discharge pipe 13 is positioned on the upper side of the sewage discharge pipe 12;

as shown in fig. 2, a sand washer 3 is arranged inside the tank 1, the sand washer 3 is connected with a drain pipe 12, the sand washer 3 is fixedly connected with a sand washing barrel 11 on the outer surface of the lower end, a sand lifting pipe 9 is fixedly connected with the outer surface of the lower end of the sand washing barrel 11, a drain pipe 13 is fixedly connected with the outer surface of the sand lifting pipe 9, a water distributor 5 penetrates through one end of the sand lifting pipe 9, the water distributor 5 is connected with the drain pipe 13, an air lifting pump 6 is arranged at the other end of the sand lifting pipe 9, a sand bed is filled inside the tank 1, the water distributor 5 and a sand collecting hopper 7 are both arranged inside the sand bed, and sewage discharged by the sand bed and the water distributor 5 is filtered;

as shown in fig. 3 and 4, a drainage partition plate 10 is fixedly connected to the inner surface of the tank body 1, a cleaning plate 15 is fixedly connected to the inside of the sand washing cylinder 11, salient points 16 are glued to the outer surface of the lower end of the cleaning plate 15, a drainage hole 14 is formed in the outer surface of the upper end of the drainage partition plate 10, one end of the drainage pipe 13 penetrates through the inside of the tank body 1, an overflow weir 8 is fixedly connected to the position, close to the drainage pipe 13, of the inner surface of the tank body 1, the salient points 16 are distributed on the outer surfaces of the upper end and the lower end of the cleaning plate 15 at equal intervals, and the salient points 16 increase the contact time between sand grains and the cleaning plate 15, so that the sand.

Through adopting above-mentioned technical scheme, the device is through adding multiunit toper drainage baffle 10 when using, when utilizing the sand bed to sewage filtration purification, can increase the mobility of sand bed in jar body 1 inside, avoid the sand bed to lead to the poor jam pipeline of mobility because of bulk density is too big, toper drainage baffle 10 can prevent to filter the rising speed simultaneously, increase the contact filter time of drainage and sand bed, thereby make the filter effect more excellent, threaded washing board 15 and bump 16 can scrub the sand grain, make the cleaning performance of sand grain better.

Specifically, as shown in fig. 3, the cleaning plates 15 are distributed in the sand washing barrel 11 in a threaded shape at equal intervals, and the cleaning plates 15 are made of rubber.

Through adopting above-mentioned technical scheme, carry out the scrubbing work to the inside sand grain of sand extraction pipe 9, the cleaning plate 15 corrosion-resistant stand wear and tear of rubber material.

Specifically, as shown in fig. 3, the number of the protruding points 16 is several, and the several protruding points 16 are equidistantly distributed on the outer surfaces of the upper end and the lower end of the cleaning plate 15.

By adopting the technical scheme, the salient points 16 increase the contact time of sand grains and the cleaning plate 15, so that the sand grains are cleaned more cleanly.

Specifically, as shown in fig. 4, the number of the drainage baffles 10 is three, and the drainage baffles are fixedly connected to the inside of the tank body 1 at equal intervals.

Through adopting above-mentioned technical scheme, drainage baffle 10 is used for increasing the mobility of sand bed.

Specifically, as shown in fig. 4, the drainage baffle 10 is conical, and the diameter of the drainage hole 14 is 1-2 cm.

Through adopting above-mentioned technical scheme, toper drainage baffle 10 separates the layering to the sand bed and avoids it to influence its mobility because of bulk density is too big.

Specifically, as shown in fig. 2, a sand bed is filled in the tank 1, and the water distributor 5 and the sand collecting hopper 7 are both arranged in the sand bed.

Through adopting above-mentioned technical scheme, filter through the sewage that sand bed and water-locator 5 discharged.

Specifically, as shown in fig. 2, the height of the sand washer 3 inside the tank 1 is less than the height of the tank 1.

By adopting the technical scheme, the sewage after sand cleaning is discharged through the liquid level difference between the sand washer 3 and the filtered water in the tank body 1.

The working principle is as follows: when the device is used, firstly, a user discharges sewage into the tank body 1 through the water inlet pipe 4, then the sewage is discharged into the sand bed through the water distributor 5, the sewage permeates and filters the sewage to move upwards under the action of the sand bed, then the filtered and purified water is discharged to the outside of the tank body 1 through the overflow weir 8 and the drain pipe 13, the lowest layer of the sand bed in the tank body 1 is a dirty sand layer, dirty sand at the moment enters the sand lifting pipe 9 and moves upwards into the sand washing cylinder 11 under the action of the air lift pump 6, the dirty sand at the moment gradually rises under the action of the threaded cleaning plate 15 in the sand washing cylinder 11, the cleaning plate 15 and the salient points 16 are in continuous contact in the rising process of the dirty sand, the cleaning plate 15 and the salient points 16 carry out scrubbing work on the dirty sand, the cleaned sand enters the sand into the sand washer 3, at the moment, the cleaning work of the sand is completed, the sewage generated by cleaning is discharged to the tank body 1 through the drain pipe 12 under the action of filtered water in the sand washer 3 and the tank body 1 It is outside, the sewage that inlet tube 4 pours into simultaneously plays interlayer drainage work at sand bed filtration purification in-process drainage baffle 10 to the sand bed, increase the decurrent mobility of sand bed, also can increase sewage and sand bed filtration purification's time and contact time simultaneously, thereby make sewage purification effect more excellent, avoid the sand bed because of the too big poor jam pipeline of mobility of bulk density, drainage hole 14 plays the drainage effect to the drainage water, it reciprocates to avoid drainage baffle 10 to influence the drainage water, the device structure can increase the mobility of sand bed through adding toper drainage baffle 10 in jar body 1 inside when using, increase sewage and sand bed contact time and purification efficiency simultaneously, make its filter effect more excellent, the sand washing section of thick bamboo 11 that additionally adds simultaneously can make sand grain abluent cleaner.

The using method comprises the following steps: firstly, a user discharges sewage into the tank body 1 through the water inlet pipe 4, then the sewage is discharged into the sand bed through the water distributor 5, the sewage permeates and filters the sewage to move upwards under the action of the sand bed, then the filtered and purified water is discharged out of the tank body 1 through the overflow weir 8 and the drain pipe 13, the lowest layer of the sand bed in the tank body 1 is a dirty sand layer, dirty sand at the moment enters the sand lifting pipe 9 under the action of the air lift pump 6 and moves upwards into the sand washing cylinder 11, the dirty sand at the moment gradually rises under the action of the threaded cleaning plate 15 in the sand washing cylinder 11, the dirty sand is ceaselessly contacted with the cleaning plate 15 and the salient points 16 in the rising process of the dirty sand, the cleaning plate 15 and the salient points 16 carry out scrubbing work on the dirty sand, the cleaned sand enters the sand washer 3, the cleaning work of the sand is finished, the sewage generated by cleaning the sand is discharged out of the tank body 1 through the drain pipe 12 under the action of filtered water in the sand washer 3 and the tank body 1, simultaneously, the drainage baffle plate 10 plays interlayer drainage work for the sand bed in the sand bed filtration and purification process of sewage injected into the water inlet pipe 4, the downward mobility of the sand bed is increased, and meanwhile, the time and the contact time of sewage and sand bed filtration and purification can also be increased, so that the sewage purification effect is more excellent.

The installation method comprises the following steps:

firstly, assembling a tank body 1, supporting legs 2, a sand washer 3, a water inlet pipe 4 and a water distributor 5;

secondly, assembling the air lift pump 6, the sand gathering hopper 7, the overflow weir 8, the sand lifting pipe 9 and the drainage partition plate 10;

and thirdly, assembling the sand washing barrel 11, the sewage discharge pipe 12, the drain pipe 13, the drainage hole 14, the cleaning plate 15 and the salient points 16, and finishing the assembling.

The sand washer 3, the water distributor 5, the air stripping pump 6, the sand gathering hopper 7 and the sand lifting pipe 9 are the prior art which is disclosed and known by the technical personnel in the field, and the technical scheme provided by the technical personnel in the field can achieve the corresponding use effect, so that the technical scheme is not described one by one.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a quicksand filter for sewage treatment, includes jar body (1), its characterized in that: the sand washing device comprises a tank body (1), a supporting leg (2) is fixedly connected to the position, close to the lower end, of the outer surface of the tank body (1), a water inlet pipe (4) is fixedly connected to one side of the outer surface of the tank body (1), a sewage discharge pipe (12) and a water discharge pipe (13) are fixedly connected to the other side of the outer surface of the tank body (1), the water discharge pipe (13) is located on the upper side of the sewage discharge pipe (12), a sand washer (3) is arranged inside the tank body (1), the sand washer (3) is connected with the sewage discharge pipe (12), a sand washing barrel (11) is fixedly connected to the outer surface of the lower end of the sand washing barrel (11), a sand lifting pipe (9) is fixedly connected to the outer surface of the sand lifting pipe (9), the water discharge pipe (13) is fixedly connected to the outer surface of the sand lifting pipe (9), a water distributor (5, the other end of carrying sand pipe (9) is provided with air stripping pump (6), internal surface fixedly connected with drainage baffle (10) of the jar body (1), the inside fixedly connected with cleaning plate (15) of sand washing section of thick bamboo (11), the lower extreme outer surface veneer of cleaning plate (15) has bump (16), drainage hole (14) have been seted up to the upper end surface of drainage baffle (10), the one end of drain pipe (13) runs through to the inside of the jar body (1), the position fixedly connected with overflow weir (8) that the internal surface of the jar body (1) is close to drain pipe (13).

2. The quicksand filter for sewage treatment as claimed in claim 1, wherein: the cleaning plates (15) are distributed in the sand washing barrel (11) in a threaded shape at equal intervals, and the cleaning plates (15) are made of rubber.

3. The quicksand filter for sewage treatment as claimed in claim 1, wherein: the number of the salient points (16) is a plurality, and the salient points (16) are distributed on the outer surfaces of the upper end and the lower end of the cleaning plate (15) at equal intervals.

4. The quicksand filter for sewage treatment as claimed in claim 1, wherein: the number of the drainage partition plates (10) is three, and the drainage partition plates are fixedly connected inside the tank body (1) at equal intervals.

5. The quicksand filter for sewage treatment as claimed in claim 1, wherein: the drainage clapboard (10) is conical, and the diameter of the drainage hole (14) is 1-2 cm.

6. The quicksand filter for sewage treatment as claimed in claim 1, wherein: the tank body (1) is filled with a sand bed, and the water distributor (5) and the sand gathering hopper (7) are arranged in the sand bed.

7. The quicksand filter for sewage treatment as claimed in claim 1, wherein: the height of the sand washer (3) in the tank body (1) is less than that of the tank body (1).

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