CN206666249U - A kind of small compound equipment for processing industrial sewage - Google Patents

Abstract

The utility model discloses a small compound industrial sewage treatment equipment, which comprises a treatment chamber, an impurity filter unit and a sludge sedimentation unit are sequentially arranged along the axial direction of the treatment chamber, and an oil-water separation unit is nested around the impurity filter unit; The unit uses centrifugal filtration to separate the water and particulate impurities in the sewage. The particulate impurities are collected by sedimentation through the sludge sedimentation unit. The oil-water separation unit uses air bubbles and centrifugal action to separate the oil stains in the sewage by floating and floating. The small compound industrial sewage treatment equipment of the utility model combines the processes of impurity separation, oil-water separation, and sludge settlement into one device, so that the sewage can achieve the purpose of decontamination and oil removal after one treatment, and the treatment process is more efficient. Simple and efficient, the composite structure of the utility model can save a lot of space compared with the traditional structure; the structure is simple, the input cost is low; it is easy to assemble and disassemble, and is convenient for cleaning and maintenance.

Description

A small compound industrial sewage treatment equipment

technical field

The utility model belongs to compound industrial sewage treatment facilities and belongs to the field of mechanical environmental protection.

technical background

Nowadays, environmental problems are becoming more and more serious, and the country is paying more and more attention to environmental problems. The one-vote veto system for environmental problems is implemented in the approval of some projects. Therefore, enterprises need to install sewage treatment equipment, but for small and medium-sized enterprises, setting up A whole set of sewage treatment equipment is wasteful and costly. Therefore, a simple and small industrial sewage treatment equipment is required, which is easy to assemble and disassemble, can meet daily use, and can be used in some emergency situations to deal with some sudden emergencies. environmental accident.

At the same time, in general, sewage treatment equipment occupies a large area, which is also an inevitable problem for consumers. Therefore, it is of practical significance to design a composite sewage treatment equipment.

Contents of the invention

Aiming at the problem that traditional sewage treatment facilities are relatively bulky, difficult to move and can only treat a single sewage, the utility model provides a small compound sewage treatment equipment, which collects impurities (including some metal ions) for filtration, oil-water separation and sludge Precipitation in one body to solve some of the above-mentioned problems.

In order to achieve the above tasks, the utility model adopts the following technical solutions:

A small compound industrial sewage treatment equipment, comprising a treatment chamber, an impurity filter unit and a sludge sedimentation unit are sequentially arranged along the axial direction of the treatment chamber, and an oil-water separation unit is nested around the impurity filter unit;

The impurity filtration unit uses centrifugal filtration to separate the water in the sewage from the particulate impurities, and the particulate impurities are collected by sedimentation through the sludge sedimentation unit. The oil-water separation unit uses air bubbles and centrifugal action to separate the oil stains in the sewage from floating and floating.

Specifically, the impurity filtering unit includes a filter membrane and an agitator, the filter membrane is a cylinder with several filter ports on the side wall, the agitator is suspended in the center of the filter membrane, and the sewage is stirred by the spiral agitation of the agitator. Provide power for the separation of impurities.

More specifically, the stirrer includes a stirring rod, a first stirring paddle and a second stirring paddle, the first stirring paddle is arranged at the top of the stirring rod, and the second stirring paddle is arranged at the bottom of the stirring rod.

Specifically, the oil-water separation unit includes an oil separator, an air blowing pipe, and an oil floating outlet. The oil separator is clamped on the end of the filter membrane near the top wall of the treatment chamber, and on the side wall of the treatment chamber below the oil separator. The floating oil discharge port is set, and the air blowing pipe is set in the filter membrane, and the gas in the air blowing pipe is broken up into small bubbles by the agitation of the agitator to carry away the oil.

Alternatively, the oil-water separation unit includes an oil separator, an air blowing pipe and an oil floating outlet, the oil separator is clamped on the end of the filter membrane near the top wall of the treatment chamber, and the side wall of the treatment chamber below the oil separator is set Slick oil discharge port, the stirring rod is a rod body with a cavity, and a plurality of exhaust ports are set at the bottom of the stirring rod, the air blowing pipe is arranged in the cavity of the stirring rod, and the blowing pipe corresponds to the row on the stirring rod Multiple blowing ports are set at the position of the gas port, and the gas in the blowing pipe is broken up into small bubbles by the agitation of the agitator to take away the oil stains.

Specifically, the sludge settling unit includes a sludge separation plate, a settling hopper and a sewage outlet. The sludge separation plate is a disk with radial gaps on the edge. The sludge separation plate covers the bottom of the filter membrane, and the settling hopper is funnel-shaped. The large opening end of the settling bucket is connected with the filter membrane and the sludge isolation plate, and the sewage outlet is set at the small opening end of the settling bucket.

In addition, a secondary purification unit is also provided in the treatment chamber, and the secondary purification unit is surrounded and arranged below the impurity filter unit. The secondary purification unit includes a first support plate, a second support plate and a water outlet. The first The support plate and the second support plate are annular plates with holes, the first support plate and the second support plate are juxtaposed around the filter membrane in the axial direction, and the cavity formed between them is filled with activated carbon layer , the water outlet is arranged on the side wall of the treatment chamber between the first support plate and the second support plate.

In addition, a recoil port is provided on the side wall of the processing chamber at a position corresponding to the water outlet.

The utility model has the following beneficial effects:

(1) The small compound industrial sewage treatment equipment of this utility model combines the processes of impurity separation, oil-water separation, and sludge settlement into one device, so that the sewage can achieve the purpose of decontamination and oil removal after one treatment. The process is simpler and more efficient. Compared with the traditional structure, the composite structure of the utility model can save a lot of space; the structure is simple, the investment cost is low; easy to assemble, easy to disassemble, easy to clean and maintain;

(2) The equipment of the utility model is also provided with a secondary purification unit, so that the treated sewage can be directly purified for the second time, and the drinking water standard can be reached after the water is discharged, which simplifies the process of water treatment;

(3) The device is also equipped with a backwashing structure, and the backwashing structure directly uses the water treatment components, and the self-cleaning function can be realized without a separate backwashing structure, which achieves maintenance of equipment and improves the service life of equipment , the effect of reducing the cost of water treatment.

Description of drawings

Fig. 1 is a schematic diagram of the overall external structure of the utility model;

Fig. 2 is a half-section schematic diagram of Fig. 1;

Fig. 3 is the structural representation of filter membrane among Fig. 1;

Fig. 4 is the structural representation of paddle among Fig. 1;

Each label in the figure represents: 1-treatment chamber, 2-impurity filter unit, 3-oil-water separation unit, 4-sludge sedimentation unit, 5-secondary purification unit, 6-support base;

11-recoil port, 12-liquid inlet, 21-filter membrane, 211-filter port, 22-stirrer, 221-exhaust port, 222-first stirring paddle, 223-second stirring paddle, 31-spacer Oil plate, 32-air blowing pipe, 321-air blowing port, 33-floating oil outlet, 41-sludge isolation plate, 42-settling bucket, 43-drainage outlet, 51-first support plate, 52-second support plate , 53-water outlet;

The utility model is described in detail below in conjunction with the accompanying drawings and specific embodiments.

detailed description

The utility model discloses a small compound industrial sewage treatment equipment, which comprises a treatment chamber, an impurity filter unit and a sludge sedimentation unit are sequentially arranged along the axial direction of the treatment chamber, and an oil-water separation unit is nested around the impurity filter unit; The unit uses centrifugal filtration to separate the water and particulate impurities in the sewage. The particulate impurities are collected by sedimentation through the sludge sedimentation unit. The oil-water separation unit uses air bubbles and centrifugal action to separate the oil stains in the sewage by floating and floating.

Specifically, the impurity filtering unit includes a filter membrane and an agitator. The filter membrane is a cylinder with several filter ports on the side wall. The agitator is suspended in the center of the filter membrane. Separation provides power, and the agitator can provide the pressure difference required for membrane filtration to ensure efficient impurity filtration.

More specifically, the agitator includes a stirring rod, a first stirring paddle and a second stirring paddle, the first stirring paddle is arranged on the top of the stirring rod, the second stirring paddle is arranged on the bottom end of the stirring rod, and when the stirring rod rotates counterclockwise, it will Make the rotating water body between the first stirring paddle and the second stirring paddle as much as possible, so as to generate sufficient pressure difference, and the pressure difference required by the filter membrane is guaranteed by the stirrer.

Specifically, the oil-water separation unit includes an oil separator, an air blowing pipe and an oil slick discharge port. The oil separator is clamped on the end of the filter membrane near the top wall of the treatment chamber, and the oil slick is arranged on the side wall of the treatment chamber below the oil separator. The outlet and the air blowing pipe are set in the filter membrane, and the gas in the air blowing pipe is broken up into small bubbles by the agitation of the agitator to take away the oil stains.

Alternatively, the oil-water separation unit includes an oil baffle, an air blowing pipe and an oil slick outlet, the oil baffle is clamped outside the filter membrane near the end of the top wall of the treatment chamber, and the side wall of the treatment chamber below the oil baffle is provided with a slick oil drain. The outlet, the stirring rod is a rod body with a cavity, and a plurality of exhaust ports are set at the position where the stirring rod is close to the second stirring paddle, the air blowing pipe is arranged in the cavity of the stirring rod, and the blowing pipe corresponds to the position on the stirring rod Multiple blowing ports are set at the exhaust port, and the gas in the blowing pipe is broken up into small bubbles by the agitation of the agitator to carry away the oil stains.

Specifically, the sludge settling unit includes a sludge separation plate, a settling hopper and a sewage outlet. The sludge separation plate is a disk with radial gaps on the edge. The sludge separation plate covers the bottom of the filter membrane, and the settling hopper is funnel-shaped. The large opening end of the settling bucket is connected with the filter membrane and the sludge isolation plate, and the sewage outlet is set at the small opening end of the settling bucket.

In addition, a secondary purification unit is also provided in the processing chamber, and the secondary purification unit is surrounded and arranged below the impurity filter unit. The secondary purification unit includes a first support plate, a second support plate and a water outlet, and the first support plate and The second support plate is a ring-shaped plate with holes. The first support plate and the second support plate surround the filter membrane in parallel in the axial direction. The cavity formed between them is filled with activated carbon layer, and the water outlet It is arranged on the side wall of the processing chamber between the first support plate and the second support plate.

In addition, a recoil port is provided on the side wall of the processing chamber at a position corresponding to the water outlet.

Example 1:

The small compound industrial sewage treatment equipment of this embodiment includes a cylindrical treatment chamber 1, the treatment chamber 1 is set on a support base 6, and the treatment chamber 1 is provided with an impurity filtration unit 2, an oil-water separation unit 3, and a sludge sedimentation unit. The unit 4, the secondary purification unit 5 and the backwashing unit are provided with a liquid inlet 12 on the side wall of the treatment chamber 1, and the liquid inlet 12 communicates with the cavity of the impurity filtration unit 2, specifically:

The impurity (comprising some metal ions) filter unit 2 comprises filter membrane 21 and agitator 22, and different filter membrane 21 can filter different metal ions and impurities, and the liquid inlet 12 on the treatment chamber 1 communicates with the cavity of filter membrane 21 . The filter membrane 21 is a cylindrical shell, and the filter membrane 21 is arranged in the treatment chamber 1 along the axial direction of the treatment chamber 1, and the treatment chamber 1 is divided into a cylindrical cavity (in the filter membrane) and a surrounding filter membrane 21 in the annular space (the space formed by the filter membrane and the wall of the treatment chamber), the cylinder wall of the filter membrane 21 is provided with a filter port 211, and the shape of the filter port 211 is several long openings arranged side by side along the length direction of the cylinder wall, ① The axial length of the strip opening should correspond to the distance between the upper and lower two stirring paddles. If the length of the strip opening is longer, the filtering effect of the filter membrane 21 cannot be fully exerted; if the length of the strip opening is shorter, it will be weakened. The sewage treatment capacity of the equipment. ②The strip openings are evenly distributed in the circumferential direction, and the width should be moderate, generally 0.09-0.11 of the diameter of the processing chamber 1 . If the opening is too wide, the water pressure difference on both sides of the strip opening will be reduced; if the opening is too narrow, the efficiency of the equipment will be affected. The agitator 22 is a stirring device with a stirring paddle, which is arranged in the center of the filter membrane 21 axially, one end of the agitator 22 is fixed on the top wall of the processing chamber 1, and the other end is suspended in the filter membrane 21, preferably Yes, the stirrer 22 is made up of a stirring rod, the first stirring paddle 222 and the second stirring paddle 223, the first stirring paddle 222 is arranged on the top of the stirring rod, the second stirring paddle 223 is arranged on the bottom of the stirring rod, and the stirring rod When rotating counterclockwise, the rotating water body will be located between the first stirring paddle 222 and the second stirring paddle 223 as much as possible, thereby generating sufficient pressure difference. The pressure difference required by the filter membrane 21 is guaranteed by the stirrer.

Impurities remaining after filtration by the impurity filtration unit 2 sink to the sludge sedimentation unit 4 for collection and treatment. The sludge sedimentation unit 4 includes a sludge isolation plate 41, a settling bucket 42 and a sewage outlet 43. The sludge isolation plate 41 is covered on the filter membrane 21, the sludge separation plate 41 is a disc body with radial slits on the edge (1. the edge is low and the middle is high, which can increase the self-strength and bearing capacity of the sludge separation plate 41. The radial slits evenly distributed on its edges are not only It can ensure that the sludge sinks into the settling bucket 42 and prevent the sludge in the settling bucket 42 from being mixed into the impurity filter unit 2 again, and the gap can also cooperate with the outer wall to play a role of positioning and locking. ②The size of the gap should be moderate, the width Generally take about 10-20mm, the length is generally not more than 5 times the width, and the gap spacing is generally about 1.5 times the gap width, evenly distributed. If the size is too large, the strength of the sludge separation plate 41 will be weakened; if it is too small, it will affect sludge settling efficiency.) The settling bucket 42 is a funnel-shaped space, the large opening end of the settling bucket 42 is connected with the filter membrane 21 and the sludge separation plate 41, the sewage outlet 43 is arranged on the small opening end of the settling bucket 42, and the impurity filter unit 2. The remaining impurity sludge after filtering is deposited from the edge gap of the sludge separation plate 41 into the settling bucket 42 below, and is discharged and collected through the sewage outlet 43.

The oil-water separation unit 3 includes an oil separator 31, an air blowing pipe 32 and a floating oil outlet 33. The oil separator 31 is an annular plate with several evenly distributed circular holes, and the oil separator 31 is clamped outside the filter membrane 21. Near the end of the processing chamber 1 top wall, floating oil outlet 33 is set on the processing chamber 1 side wall below the oil separator 31, the stirring rod is a rod body with a cavity, and the stirring rod is close to the second stirring paddle 223 A plurality of air outlets 221 are arranged at the position, and the air blowing pipe 32 is arranged in the cavity of the stirring rod, and a plurality of air blowing ports 321 are arranged at the position of the air blowing pipe 32 corresponding to the air outlet 221 on the stirring rod, and the top of the air blowing pipe 32 stretches out The top wall of the processing chamber 1; the high-pressure air passes through the top of the blowing pipe 32 from the blowing port 321 on the blowing pipe 32 and the exhaust port 221 of the stirring rod, forming a large amount of water under the action of the first stirring paddle 222 and the second stirring paddle 223. Small bubbles, small bubbles can absorb the oil in the water body, accelerate the oil to float up to the oil separator 31, and finally discharge from the floating oil discharge port 33 through the barrier effect of the oil separator 31. The floating oil outlet 33 of the oil-water separation unit 3 can also be filled with high-pressure backwashing water to clean the oil separator 31 , the agitator 22 and the filter membrane 21 .

The secondary purification unit 5 is arranged below the impurity filtration unit 2, specifically, the secondary purification unit 5 includes a first support plate 51, a second support plate 52 and a water outlet 53, and the first support plate 51 and the second support plate 52 is an annular plate body with holes, the first support plate 51 and the second support plate 52 are juxtaposed around the filter membrane 21 in the axial direction, and the cavity formed between the two is filled with an active carbon layer. For secondary adsorption purification, the water outlet 53 is arranged on the side wall of the processing chamber 1 between the first support plate 51 and the second support plate 52 .

After the sewage is treated by the filter membrane 21, it enters the outer annular cavity. When the treated water passes through the activated carbon layer between the first support plate 51 and the second support plate 52, the flow rate will slow down, so that the activated carbon can fully play the role of filtration. Function, to ensure that the discharged clean water meets the national discharge standards and daily use standards.

The filter membrane 21 has strong processing capacity and high efficiency, but the filter membrane 21 is easy to be blocked. For this, there is a backwash system. The floating oil outlet 33, the gas blowing pipe 32, and the agitator 22 cooperate with each other to clean the filter membrane well. At the same time, a backflush port 11 is provided at a position corresponding to the water outlet 53 on the side wall of the treatment chamber 1, and the cooperation of the backflush port 11 and the water outlet 53 can fully flush the activated carbon layer. Backwashing can ensure that the sewage treatment equipment maintains long-term efficient filtration capacity and saves manpower and material resources.

The treatment process of the small-scale composite sewage treatment equipment of embodiment 1 comprises:

Industrial sewage enters the filter membrane 21 through the liquid inlet 12, and a large amount of impurities (including some metal ions) are discharged from the sludge separation plate 41, the settling bucket 42 and the sewage outlet 43 after the water body is separated by the agitation of the agitator 22; Under the action of a large number of small air bubbles formed by the agitator 22 and the air blowing pipe 32, they quickly float up to the oil separator 31, and finally the oil is discharged from the oil slick outlet 33; the preliminarily treated water enters the treatment chamber 1 through the filter membrane 21 In the annular cavity, after passing through the activated carbon layer formed by the first support plate 222 and the second support plate 223, it is finally discharged from the water outlet; the recoil port 11 cooperates with the water outlet 53, the agitator 22, the air blowing pipe 32 and the floating oil discharge port 33. It can fully clean the activated carbon layer, filter membrane and other components to ensure the effective service life of the equipment.

Claims (8)

1. a kind of small compound equipment for processing industrial sewage, including processing chamber (1), it is characterised in that along the axle of processing chamber (1) To setting gradually contaminant filter unit (2) and sludge settling unit (4), and around contaminant filter unit (2) is nested, profit is set Separative element (3)；

Contaminant filter unit (2) is separated the water in sewage with granule foreign using centrifugal filtration, and granule foreign is sunk by sludge Shallow lake unit (4) carries out sedimentation collection, and water-oil separating unit (3) is swum the oil stain in sewage point using bubble and centrifugal action From.

2. small compound equipment for processing industrial sewage as claimed in claim 1, it is characterised in that described contaminant filter list First (2) include filter membrane (21) and agitator (22), and filter membrane (21) is the cylinder with some filtering mouths (211) in side wall, Agitator (22) is suspended in the center of filter membrane (21), and point of dirty impurities in water is act as by the auger of agitator (22) From offer power.

3. small compound equipment for processing industrial sewage as claimed in claim 2, it is characterised in that described agitator (22) Including puddler, the first agitating paddle (222) and the second agitating paddle (223), the first agitating paddle (222) is arranged on the top of puddler End, the second agitating paddle (223) are arranged on the bottom of puddler.

4. small compound equipment for processing industrial sewage as claimed in claim 2 or claim 3, it is characterised in that described profit point Include oil separating plate (31), gas blow pipe (32) and oil slick outlet (33) from unit (3), oil separating plate (31) is fastened on filter membrane (21) Oil slick outlet (33) is set in outer processing chamber (1) side wall below the end of processing chamber (1) roof, oil separating plate (31), Gas blow pipe (32) is arranged in filter membrane (21), is dispersed as the gas of gas blow pipe (32) by the stirring action of agitator (22) Minute bubbles take away greasy dirt.

5. small compound equipment for processing industrial sewage as claimed in claim 2 or claim 3, it is characterised in that described profit point Include oil separating plate (31), gas blow pipe (32) and oil slick outlet (33) from unit (3), oil separating plate (31) is fastened on filter membrane (21) Oil slick outlet (33) is set in outer processing chamber (1) side wall below the end of processing chamber (1) roof, oil separating plate (31), Puddler is the body of rod with cavity, and sets multiple exhaust outlets (221) in the bottom of puddler, and gas blow pipe (32), which is arranged on, to be stirred Mix in the cavity of bar, and exhaust outlet (221) position on the corresponding puddler of gas blow pipe (32) sets multiple inflatable mouths (321), The gas of gas blow pipe (32) is dispersed as into minute bubbles by the stirring action of agitator (22) to take away greasy dirt.

6. small compound equipment for processing industrial sewage as claimed in claim 2 or claim 3, it is characterised in that sludge settling unit (4) sludge division board (41), sedimentation bucket (42) and sewage draining exit (43) are included, sludge division board (41) is that edge carries radial seam The disk body of gap, sludge division board (41) are covered in the cylinder bottom of filter membrane (21), and sedimentation bucket (42) is funnelform space, sedimentation bucket (42) big opening end is connected with filter membrane (21) and sludge division board (41), and sewage draining exit (43) is arranged on the small of sedimentation bucket (42) Openend.

7. small compound equipment for processing industrial sewage as claimed in claim 2 or claim 3, it is characterised in that in described processing Double purification unit (5) is also set up in chamber (1), double purification unit (5) surrounds the lower section for being arranged on contaminant filter unit (2), Double purification unit (5) includes the first supporting plate (51), the second supporting plate (52) and delivery port (53), the first supporting plate (51) and Second supporting plate (52) is the circular plate body with hole, and the first auxiliary supporting plate (51) and the second supporting plate (52) are vertically simultaneously Row are centered around around filter membrane (21), and filling active carbon layer, delivery port (53) are arranged on first in the cavity formed therebetween In processing chamber (1) side wall between supporting plate (51) and the second supporting plate (52).

8. small compound equipment for processing industrial sewage as claimed in claim 7, it is characterised in that in the side of processing chamber (1) The position that delivery port (53) is corresponded on wall sets recoil mouth (11).