CN112194224A - Two-way adsorption ball for treating oil stains in self-separation sewage - Google Patents

Abstract

The invention discloses a bidirectional adsorption ball for treating oil stains in self-separation sewage, belonging to the field of sewage treatment, wherein under the arrangement of a self-extending elastic rope, when the adsorption ball falls into the sewage, a water-soluble sealing layer is hydrolyzed, so that the self-extending elastic rope is stretched, a sunken suction flap is sunken and is positioned in the sewage, an embedded adsorption sheet is simultaneously driven to enter the water surface for oil stain adsorption, the embedded adsorption sheets sequentially enter the sewage and assist in adsorbing oil drops in the sewage along with the increase of oil stains adsorbed by the sunken suction flap, the bidirectional absorption inside and outside the oil stains is realized by matching with a floating suction flap on the liquid surface, the adsorption efficiency on the oil stains is remarkably improved, and the arrangement of a magnetic separation net is matched, so that the recovery difficulty can be remarkably reduced, on the other hand, the self-extending elastic rope is directly connected to the sunken magnetic separation net, thereby the damage of the floating suction flap caused by the gravity of the magnetic separation flap can be effectively avoided, thereby effectively maintaining the stability of the adsorption ball.

Description

Two-way adsorption ball for treating oil stains in self-separation sewage

Technical Field

The invention relates to the field of sewage treatment, in particular to a bidirectional adsorption ball for treating oil stains in self-separation sewage.

Background

Sewage is the effluent from life and production that is contaminated to some extent. The water which loses the original use function is called sewage for short. Mainly used water in life, which contains more organic matters and is easy to treat. Sewage may be defined as a waste-laden liquid or water mixed with ground water, surface water, snow storms, etc. discharged from residential, institutional, commercial or industrial areas from the point of view of the source of the sewage. Sewage is classified into many categories, and there are many techniques and processes for reducing the environmental impact of sewage accordingly. Sewage can be divided into these two categories according to the source of the sewage.

The first type is industrial wastewater: sewage from manufacturing mining and industrial production activities, including runoff leachate from industrial or commercial storage, processing, and other wastewater that is not domestic sewage.

The second type is domestic sewage: sewage from homes, office buildings, offices, or the like; sanitary sewage; sewage water, including industrial waste water mixed in domestic sewage water in a sewer system. Garbage, various atmospheric particulates, and the like, which enter the water environment through surface runoff, soil erosion, farmland drainage, and the like. The method has the characteristics of dispersity, concealment, randomness, latency, accumulation, ambiguity and the like, so that the method is difficult to monitor and quantify, and the difficulty of research, prevention and control is high. Water pollutants (Waterpollutant) are the substances that cause pollution when discharged into a body of water.

Contain the greasy dirt in the sewage, because water oil layering, and the greasy dirt floats the nature on the surface of water, prior art floats adsorption material on the surface of water usually and carries out the absorption of greasy dirt, but in sewage treatment system, sewage is in the developments, and a lot of oil drips because the fluctuation comes not so much to float on the surface of water, still exists with inside the sewage, leads to only lower through the greasy dirt adsorption efficiency of liquid level, still has the problem that adsorption material is difficult to retrieve after adsorbing simultaneously.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide a self-separating bidirectional adsorption ball for treating oil stains in sewage, which is characterized in that under the arrangement of a self-extending elastic rope, when the adsorption ball falls into the sewage, a water-soluble sealing layer is hydrolyzed, so that the self-extending elastic rope is stretched, a sunken absorption flap is sunken and is arranged in the sewage, an embedded adsorption sheet is simultaneously driven to enter the water surface for oil stain adsorption, the embedded adsorption sheet sequentially enters the sewage and assists in adsorbing oil drops in the sewage along with the increase of oil stains adsorbed by the sunken absorption flap, the bidirectional absorption inside and outside the oil stains is realized by matching with a floating absorption flap on the liquid surface, the adsorption efficiency on the oil stains is remarkably improved, and meanwhile, the arrangement of a magnetic separation net is matched, on one hand, the recovery difficulty can be remarkably reduced, on the other hand, the self-extending elastic rope is directly connected to the magnetic separation net, so that the damage of the floating absorption flap caused by the gravity, thereby effectively maintaining the stability of the adsorption ball.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

A bidirectional adsorption ball for treating oil stains in self-separation sewage comprises a sinking absorption flap and a floating absorption flap, wherein a water-soluble sealing layer is arranged between the sinking absorption flap and the floating absorption flap, a plurality of self-extending elastic ropes which are uniformly distributed are embedded in the water-soluble sealing layer, a magnetic separation net is embedded on the upper surface of the floating absorption flap, one end of each self-extending elastic rope is fixedly connected with the upper surface of the sinking absorption flap, a plurality of embedded grooves which correspond to the magnetic separation net are formed in the end, close to each other, of the floating absorption flap and the sinking absorption flap, each embedded groove comprises a lower containing groove and an upper through hole, the lower containing groove is communicated with the upper through hole, the upper through hole is positioned above the lower containing groove, the other end of each self-extending elastic rope sequentially penetrates through the lower containing groove and the upper through hole and is fixedly connected with the magnetic separation net, a plurality of uniformly distributed embedded adsorption pieces are fixedly connected to the self-extending elastic rope, and the embedded adsorption pieces are all positioned in the lower containing groove, under the setting of self-extending elastic rope, this adsorption ball when falling into sewage, water-soluble seal is hydrolysised, make self-extending elastic rope stretched, it sinks and inside sewage to sink the suction flap, drive embedded adsorption sheet simultaneously and enter into the surface of water and carry out greasy dirt absorption, along with sinking the increase of suction flap adsorption greasy dirt, embedded adsorption sheet enters into in the sewage in proper order and the supplementary oil that adsorbs in the sewage drips, the inside and outside two-way absorption of greasy dirt is realized to the come-up suction flap of cooperation liquid level, show the adsorption efficiency who improves to the greasy dirt, the setting of cooperation magnetic separation net simultaneously, can show on the one hand and reduce the recovery degree of difficulty, on the other hand is netted from extending elastic rope lug connection, thereby can effectively avoid causing the damage of come-up suction flap because of the gravity of sinking the suction flap, and then effectively maintain the stability of this adsorption ball.

Further, the suction flap that sinks is that the hydrophobic material of oleophylic that the internal packing has the counter weight grit makes, make the suction flap that sinks have certain gravity, thereby make this absorption ball when falling into the sewage, the suction flap that sinks can sink, make water-soluble seal hydrolyze, and then drive the self-extending elasticity rope and stretched, make embedded absorption piece enter into aquatic, and then can effectively adsorb the oil droplet of aquatic, the surface of water is laid to the suction flap that floats simultaneously, thereby can absorb the greasy dirt of the surface of water, realize inside and outside two-way absorption, effectively improve the adsorption efficiency to the greasy dirt.

Furthermore, the volume of the sinking suction flap is-times of the total volume of the balance weight sand, so that the overall gravity of the sinking suction flap is not too large, and the condition that the floating suction flap is driven to sink into the water surface after the sinking suction flap sinks is effectively avoided.

Further, the magnetic separation net includes a plurality of net ropes of interweaving, and is a plurality of the hemisphere is inhaled to the equal fixedly connected with magnetism in node of net rope, hemisphere and net rope are all fixed to be inlayed on the come-up suction flap to magnetism, when needs retrieve this absorption ball, can directly retrieve through magnetic sheet absorption magnetic separation net, and the while is from extending elasticity rope lug connection on the magnetic separation net to can effectively avoid causing the damage of come-up suction flap because of the gravity of sinking the suction flap, and then effectively maintain the stability of this absorption ball.

Further, from extending elasticity rope include with sink suction flap fixed connection's outer seal section and with magnetism inhale hemisphere fixed connection's embedded section, outer seal section and embedded section fixed connection, it is a plurality of on the equal fixed connection of embedded absorption piece is in the interior block, outer seal section can be with absorbent greasy dirt on the embedded absorption piece gradually transfer in sinking suction flap and the come-up suction flap downwards to effectively guarantee that embedded absorption piece can keep better oil absorption.

Further, outer seal section and embedded section are elastic material and make, make under the sunken lamella action of gravity of inhaling, can extend from extending elasticity rope, thereby make after water-soluble seal is hydrolyzed, be convenient for control and sink the lamella of inhaling and the lamella separation is inhaled to the come-up, thereby realize that oil absorption is handled when sewage liquid level and inside, and the diameter from the top down of outer seal section crescent, outer seal section is thicker than embedded section, it is stronger to the bearing capacity of greasy dirt, thereby be convenient for with the greasy dirt on embedded adsorption piece and the embedded section towards sinking the lamella of inhaling the inward shift.

Further, embedded section lower extreme winding has a plurality of oil fine hair of leading, and is a plurality of lead the tip of oil fine hair all imbeds to outer seal section in, leads oil fine hair and makes the area of contact between outer seal section and the embedded section bigger, effectively accelerates the transmission of outer seal section to interior section orientation greasy dirt, and then effectively improves the adsorption efficiency of this adsorption ball to the greasy dirt.

Furthermore, fixedly connected with is many to spacing node on the interior block, and is every right spacing node is located embedded adsorption piece's upper and lower both sides respectively, and spacing node can effectively restrict embedded adsorption piece's position for at the in-process of stretching from extending elastic rope and in carrying out the greasy dirt adsorption process, the difficult removal that takes place the position of embedded adsorption piece, thereby effectively avoid two adjacent embedded adsorption pieces adhesion to lead to the problem emergence of absorption efficiency decline together.

Further, embedded absorption piece includes the oil storage piece with embedded section fixed connection and a plurality of lipophilic seizure fine hair of connecting terminal surface under the oil storage piece, through the setting of a plurality of lipophilic seizure fine hair, helps accelerating the seizure and the adsorption rate of embedded absorption piece to the inside greasy dirt of sewage, effectively improves the greasy dirt treatment effeciency to sewage is holistic.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) this scheme is under the setting of self-extending elasticity rope, this absorption ball is when falling into the sewage, water-soluble seal is hydrolysised, make self-extending elasticity rope stretched, it sinks and inside sewage to sink the suction flap, it carries out the greasy dirt absorption to drive embedded absorption piece to enter into the surface of water simultaneously, along with sinking the increase of suction flap absorption greasy dirt, embedded absorption piece enters into in the sewage in proper order and the supplementary oil that adsorbs in the sewage drips, the inside and outside two-way absorption of greasy dirt is realized to the come-up suction flap of cooperation liquid level, show the absorption efficiency that improves to the greasy dirt, the setting of cooperation magnetic separation net simultaneously, can show on the one hand and reduce the recovery degree of difficulty, on the other hand is on the magnetic separation net from extending elasticity rope lug connection, thereby can effectively avoid causing the damage of come-up suction flap because of the gravity of sinking the suction flap, and then effectively.

(2) The suction flap sinks and is filled the oleophylic hydrophobic material that has the counter weight grit for inside and make, make the suction flap that sinks have certain gravity, thereby make this absorption ball when falling into the sewage, the suction flap that sinks can sink, make water-soluble seal hydrolyze, and then drive and stretch from the elastic rope that extends, make embedded absorption piece enter into the aquatic, and then can effectively adsorb the oil drop of aquatic, the suction flap that floats simultaneously is laid at the surface of water, thereby can absorb the greasy dirt of the surface of water, realize inside and outside two-way absorption, effectively improve the adsorption efficiency to the greasy dirt.

(3) The volume of the sinking suction flap is-times of the total volume of the counterweight sand, so that the integral gravity of the sinking suction flap is not too large, and the condition that the floating suction flap is driven to sink into the water surface after the sinking suction flap sinks is effectively avoided.

(4) The magnetic separation net includes a plurality of net ropes of knitting each other, the hemisphere is inhaled to the equal fixedly connected with magnetism in the node of a plurality of net ropes, magnetism is inhaled hemisphere and net rope and is all fixed to be inlayed on the flap is inhaled to the come-up, when needs are retrieved this absorption ball, can directly adsorb the magnetic separation net through the magnetic sheet and retrieve, simultaneously from extending elasticity rope lug connection on the magnetic separation net to can effectively avoid causing the damage of the flap is inhaled to the come-up because of the gravity of the flap is inhaled in sinking, and then effectively maintain the stability of this absorption ball.

(5) The self-extending elastic rope comprises an outer sealing section fixedly connected with the sinking absorption piece and an inner embedded section fixedly connected with the magnetic absorption hemisphere, the outer sealing section is fixedly connected with the inner embedded section, a plurality of inner embedded absorption pieces are fixedly connected on the inner block, and oil stains adsorbed on the inner embedded absorption pieces can be gradually transferred downwards into the sinking absorption piece and the floating absorption piece by the outer sealing section, so that the embedded absorption pieces can be effectively guaranteed to keep better oil absorption.

(6) Outer seal section and embedded section are elastic material and make, make under the sunken lamella action of gravity of inhaling, can extend from extending elasticity rope, thereby make after water-soluble seal is hydrolysised, be convenient for control is sunken and is inhaled lamella and upper float and inhale the lamella separation, thereby realize that sewage liquid level and inside oil absorption are handled simultaneously, and the diameter from the top down of outer seal section crescent, outer seal section is compared in embedded section more coarsely, it is stronger to the bearing capacity of greasy dirt, thereby be convenient for with the greasy dirt on embedded adsorption piece and the embedded section towards sinking and inhale the lamella internal transfer.

(7) Interior block lower extreme winding has a plurality of oil villi of leading, and a plurality of tip of leading oil villi all imbed to outer seal section in, the oil villi of leading makes the area of contact between outer seal section and the embedded section bigger, effectively accelerates the transmission of outer seal section greasy dirt to the interior upward greasy dirt of section direction of embedding, and then effectively improves the adsorption efficiency of this absorption ball to the greasy dirt.

(8) Fixedly connected with is many to spacing node on the interior block, and every upper and lower both sides that are located embedded absorption piece respectively to spacing node, and spacing node can effectively restrict the position of embedded absorption piece for at the in-process of stretching from extending elastic rope and carrying out the greasy dirt adsorption process, the difficult removal that takes place the position of embedded absorption piece, thereby effectively avoid two adjacent embedded absorption piece adhesion to lead to the problem emergence that adsorption efficiency descends together.

(9) The embedded absorption piece includes the oil storage piece with embedded section fixed connection and a plurality of lipophilic seizure fine hair of connecting terminal surface under the oil storage piece, catches the setting of fine hair through a plurality of lipophilicities, helps accelerating the seizure and the adsorption rate of embedded absorption piece to the inside greasy dirt of sewage, effectively improves the greasy dirt treatment efficiency to sewage is holistic.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic structural view of a front cross section of the present invention;

FIG. 3 is a schematic structural diagram of the present invention during oil absorption;

FIG. 4 is a schematic view of the construction of a self-extending elastic cord portion of the present invention;

FIG. 5 is a schematic view of the construction of the portion of the inline adsorption sheet of the present invention;

fig. 6 is a schematic structural view of the top surface of the upper petals of the present invention.

The reference numbers in the figures illustrate:

11 sinking suction flaps, 12 floating suction flaps, 3 water soluble sealing layers, 4 self-extending elastic ropes, 41 external sealing sections, 42 internal embedding sections, 51 magnetic hemisphere, 52 net rope, 6 internal embedding adsorption sheets, 61 oil storage sheets, 62 oleophilic catching fluff, 71 lower containing groove, 72 upper through hole, 8 limit node and 9 oil guide fluff.

Detailed Description

The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 1, a self-separating bidirectional adsorption ball for treating oil contamination in sewage comprises a sinking absorption flap 11 and a floating absorption flap 12, a water-soluble sealing layer 3 is arranged between the sinking absorption flap 11 and the floating absorption flap 12, a plurality of self-extending elastic ropes 4 which are uniformly distributed are embedded in the water-soluble sealing layer 3, a magnetic separation net is embedded on the upper surface of the floating absorption flap 12, one end of each self-extending elastic rope 4 is fixedly connected with the upper surface of the sinking absorption flap 11, referring to fig. 6, the magnetic separation net comprises a plurality of net ropes 52 which are woven with each other, a magnetic adsorption hemisphere 51 is fixedly connected with a node of each net rope 52, the magnetic adsorption hemisphere 51 and the net rope 52 are fixedly embedded on the floating absorption flap 12, when the adsorption ball needs to be recovered, the magnetic separation net can be directly absorbed by a magnetic plate, and the self-extending elastic ropes 4 are directly connected on the magnetic separation net, so that the damage of the floating absorption flap 12 caused by the gravity of the sinking absorption flap 11 can be effectively avoided, thereby effectively maintaining the stability of the adsorption ball.

Referring to fig. 2-3, the upper floating flap 12 and the lower floating flap 11 have a plurality of embedded grooves corresponding to the magnetic separation net drilled at their ends, the embedded grooves include a lower groove 71 and an upper through hole 72, the lower groove 71 communicates with the upper through hole 72, the upper through hole 72 is located above the lower groove 71, the other end of the self-extending elastic rope 4 sequentially penetrates through the lower groove 71 and the upper through hole 72 and is fixedly connected with the magnetic separation net, the self-extending elastic rope 4 is fixedly connected with a plurality of uniformly distributed embedded absorption sheets 6, the plurality of embedded absorption sheets 6 are located in the lower groove 71, the lower flap 11 is made of lipophilic and hydrophobic material filled with weighted sand, so that the lower flap 11 has a certain gravity, when the ball falls into sewage, the lower flap 11 can hydrolyze the water-soluble sealing layer 3 and further drive the self-extending elastic rope 4 to be stretched, make embedded absorption piece 6 enter into the aquatic, and then can effectively adsorb the oil droplet in the aquatic, simultaneously the come-up suction flap 12 is laid at the surface of water to can absorb the greasy dirt of the surface of water, realize inside and outside two-way absorption, effectively improve the adsorption efficiency to the greasy dirt, the volume of sinking suction flap 11 is 7-10 times of counter weight grit total volume, makes the whole gravity of sinking suction flap 11 can not be too big, effectively avoids sinking suction flap 11 and sinks the back, drives the circumstances that come-up suction flap 12 also sinks the surface of water and takes place.

Referring to fig. 4, the self-extending elastic rope 4 includes an outer sealing section 41 fixedly connected to the sunken absorption flap 11 and an inner sealing section 42 fixedly connected to the magnetic hemisphere 51, the outer sealing section 41 is fixedly connected to the inner sealing section 42, the plurality of inner embedded absorption flaps 6 are fixedly connected to the inner sealing section 42, the outer sealing section 41 can gradually transfer the oil absorbed on the inner embedded absorption flaps 6 into the sunken absorption flap 11 and the floating absorption flap 12, so as to effectively ensure that the inner embedded absorption flaps 6 can maintain good oil absorption, the outer sealing section 41 and the inner sealing section 42 are made of elastic materials, so that under the gravity action of the sunken absorption flap 11, the self-extending elastic rope 4 can extend, so that after the water soluble sealing layer 3 is hydrolyzed, the sunken absorption flap 11 and the floating absorption flap 12 are conveniently controlled to separate, so as to achieve simultaneous oil absorption treatment of sewage level and inside, and the diameter of the outer sealing section 41 gradually increases from top to bottom, the outer sealing section 41 is thicker than the inner sealing section 42, its bearing capacity to the greasy dirt is stronger, thereby be convenient for with the greasy dirt on embedded absorption piece 6 and the interior block 42 towards sinking the internal transfer of suction flap 11, the winding of embedded 42 lower extreme has a plurality of oil fine hair 9 of leading, a plurality of tip of leading oil fine hair 9 all imbeds to outer seal section 41 in, it is bigger to lead oil fine hair 9 to make the area of contact between outer seal section 41 and the embedded 42 section, effectively accelerate the transmission of greasy dirt on the outer seal section 41 to the embedded 42 direction, and then effectively improve the adsorption efficiency of this absorption ball to the greasy dirt.

Referring to fig. 5, a plurality of pairs of limit nodes 8 are fixedly connected to the inner block 42, each pair of limit nodes 8 are respectively located at the upper side and the lower side of the embedded absorption sheet 6, the limit nodes 8 can effectively limit the position of the embedded absorption sheet 6, so that the embedded absorption sheet 6 is not easy to move in position in the stretching process of the self-extending elastic rope 4 and in the oil stain absorption process, and the problem that the absorption efficiency is reduced due to the fact that two adjacent embedded absorption sheets 6 are adhered together is effectively solved, the embedded absorption sheet 6 comprises an oil storage sheet 61 fixedly connected with the inner block 42 and a plurality of oleophilic capturing fluff 62 connected to the lower end face of the oil storage sheet 61, and the capture and absorption speed of the embedded absorption sheet 6 on the oil stains in the sewage is facilitated to be accelerated through the arrangement of the oleophilic capturing fluff 62, and the overall oil stain treatment efficiency on the sewage is effectively improved.

Under the arrangement of the self-extending elastic rope 4, when the adsorption ball falls into sewage, the water-soluble sealing layer 3 is hydrolyzed, so that the self-extending elastic rope 4 is stretched, the sinking suction flap 11 sinks and is positioned in the sewage, meanwhile, the embedded absorption sheets 6 are driven to enter the water surface for absorbing oil stains, the embedded absorption sheets 6 sequentially enter the sewage and assist in absorbing oil drops along with the increase of the oil stains absorbed by the sunken absorption flaps 12, the floating absorption flaps 12 on the liquid surface are matched to realize the bidirectional absorption inside and outside the oil stains, the absorption efficiency on the oil stains is obviously improved, meanwhile, the arrangement of the magnetic separation net is matched, on one hand, the recovery difficulty can be obviously reduced, on the other hand, the self-extending elastic rope 4 is directly connected on the magnetic separation net, thereby can effectively avoid causing the damage of floating suction flap because of the gravity of sinking suction flap, and then effectively maintain this stability of adsorbing the ball for the adsorption effect to the greasy dirt is better.

The above; but are merely preferred embodiments of the invention; the scope of the invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the invention are equally replaced or changed; are intended to be covered by the scope of the present invention.

Claims (9)

1. The utility model provides a greasy dirt handles and uses two-way absorption ball in self-separating sewage, includes that the suction flap (11) and the upper float of sinking inhale flap (12), its characterized in that: the utility model discloses a magnetic separation device, including water-soluble seal (3) between valve (11) is inhaled in sinking and the upper surface of valve (12) is inhaled to the floating, water-soluble seal (3) inside inlay has a plurality of evenly distributed's elasticity rope (4) of extending certainly, the valve (12) is inhaled to the floating upper surface inlays and has magnetic separation net, the elasticity rope (4) one end of extending certainly with inhale valve (11) upper surface fixed connection that sinks, the valve (12) is inhaled to the floating and the valve (11) one end that is close to each other is opened the chisel and is had a plurality of embedded grooves that correspond each other with magnetic separation net with sinking, embedded groove is including holding groove (71) and last perforating hole (72) down, hold groove (71) and last perforating hole (72) intercommunication down, and go up perforating hole (72) and be located and hold groove (71) top down, hold groove (71) and last perforating hole (72) and with magnetic separation net fixed connection down in proper order from extending elasticity rope (4) other end, fixedly connected with a plurality of evenly distributed's embedded absorption piece (6) on extending elasticity rope (, the embedded adsorption sheets (6) are all positioned in the lower containing groove (71).

2. The two-way adsorption ball for oil stain treatment in self-separation type sewage according to claim 1, characterized in that: the sinking suction flap (11) is made of oleophilic and hydrophobic materials filled with weighted sand.

3. The two-way adsorption ball for oil stain treatment in self-separation type sewage according to claim 2, is characterized in that: the volume of the sinking suction flap (11) is 7-10 times of the total volume of the counterweight sand.

4. The two-way adsorption ball for oil stain treatment in self-separation type sewage according to claim 1, characterized in that: the magnetic separation net comprises a plurality of net ropes (52) which are woven with each other, a plurality of magnetic hemispheres (51) are fixedly connected to the nodes of the net ropes (52), and the magnetic hemispheres (51) and the net ropes (52) are fixedly embedded on the floating suction flaps (12).

5. The two-way adsorption ball for oil stain treatment in self-separation type sewage according to claim 4, is characterized in that: the self-extending elastic rope (4) comprises an outer sealing section (41) fixedly connected with a sinking suction flap (11) and an inner block (42) fixedly connected with a magnetic suction hemisphere (51), wherein the outer sealing section (41) is fixedly connected with the inner block (42), and the inner block (42) is fixedly connected with the inner block (6).

6. The two-way adsorption ball for oil stain treatment in self-separation type sewage according to claim 5, is characterized in that: the outer sealing section (41) and the inner sealing section (42) are both made of elastic materials, and the diameter of the outer sealing section (41) is gradually increased from top to bottom.

7. The two-way adsorption ball for oil stain treatment in self-separation sewage according to claim 6, characterized in that: the lower end of the inner block (42) is wound with a plurality of oil guide fluff (9), and the end parts of the oil guide fluff (9) are embedded into the outer sealing section (41).

8. The two-way adsorption ball for oil stain treatment in self-separation type sewage according to claim 5, is characterized in that: the inner block (42) is fixedly connected with a plurality of pairs of limiting nodes (8), and each pair of limiting nodes (8) are respectively positioned at the upper side and the lower side of the embedded adsorption sheet (6).

9. The two-way adsorption ball for oil stain treatment in self-separation type sewage according to claim 8, characterized in that: the embedded adsorption sheet (6) comprises an oil storage sheet (61) fixedly connected with the inner block (42) and a plurality of oleophilic capturing fluff (62) connected to the lower end face of the oil storage sheet (61).

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