CN213680287U

CN213680287U - Device for realizing gas-liquid-solid three-phase separation in sewage treatment

Info

Publication number: CN213680287U
Application number: CN202022605856.5U
Authority: CN
Inventors: 姚丕荣
Original assignee: Sichuan Jingbin Energy Conservation And Environmental Protection Technology Co ltd; Yibin University
Current assignee: Sichuan Jingbin Energy Conservation And Environmental Protection Technology Co ltd; Yibin University
Priority date: 2020-11-11
Filing date: 2020-11-11
Publication date: 2021-07-13
Anticipated expiration: 2030-11-11

Abstract

The utility model discloses a device for realizing gas-liquid-solid three-phase separation in sewage treatment. The outer side wall of the inner cylinder is provided with an upper cone, the maximum diameter of its lower end is configured to be smaller than the maximum diameter of the outer cylinder, the upper cone and the lower cone are in a snap-fit shape, and are staggered in the longitudinal space. The bottom edge of the inner cylinder is provided with a plurality of grooves, and a plurality of groove feet are obtained by defining between adjacent grooves, and the inner cylinder is arranged on the upper cone through the groove feet. The utility model provides a device for realizing gas-liquid-solid three-phase separation in sewage treatment. By arranging matching grooves and groove feet, the block biofilm formed by sludge can return to the inner barrel through the grooves in time for further participation. Biochemical reaction, there will be no ammonification and floating.

Description

Device for realizing gas-liquid-solid three-phase separation in sewage treatment

Technical Field

The utility model relates to a device used under the condition of sewage treatment. More specifically, the utility model relates to a device that is used in the gas-liquid solid three-phase separation that uses under the low discharge sewage condition.

Background

Sequencing Batch Reactor (Sequencing Batch Reactor, abbreviated as SBR) Process. SBR activated sludge process equipment is firstly provided at the end of the 70 th 20 th century taught by R.L.Irvine of the United states Noluodan university, and the process has the characteristics of low investment, impact load resistance, difficult sludge expansion and capability of effectively removing N, P. However, the SBR process and equipment are not widely used since the utility model, and the reasons for this are that the SBR process and equipment exist: the sewage can not be continuously treated and the miniaturization after-treatment effect is poor.

For these technical problems, the patent numbers in the prior art are: 202010166281.3, the patent name is a sequencing batch continuous discharge sewage processor and its application method, adding a three-phase separator in R.L.Irvine SBR sewage treatment process equipment, changing the original five sewage treatment sequencing batch processes (water inlet, standby, aeration, precipitation, water discharge) into three sequencing batches (water inlet, standby, aeration), two continuous processes (precipitation, water discharge), shortening 70% sequencing batch time, improving 50% efficiency, providing possibility for equipment miniaturization, being able to be used in the place where the daily sewage yield is 5 tons, but in actual use, the communication between the inner barrel and the outer barrel of the equipment is that the lower part of the inner barrel is perforated, the hole can pass through the sludge but can not pass through the blocky biomembrane, the blocky biomembrane formed by the sludge can not timely return to participate in the biochemical reaction, the ammoniation floating, affecting the precipitation effect, the alleged effect cannot be achieved necessarily in long-term use.

SUMMERY OF THE UTILITY MODEL

An object of the present invention is to solve at least the above problems and/or disadvantages and to provide at least the advantages which will be described later.

To achieve these objects and other advantages in accordance with the present invention, there is provided an apparatus for separating gas, liquid and solid phases in sewage treatment, comprising a barrel body composed of a double-layered concentric outer barrel, an inner barrel, and a bio-reactant mechanism disposed in the inner barrel, wherein the bottom of the outer barrel is provided with a lower cone concentric therewith, and the upper end of the outer barrel is configured to be connected with the inner sidewall of the outer barrel;

the outer side wall of the inner cylinder is provided with an upper cone, the maximum diameter of the lower end of the inner cylinder is smaller than that of the outer cylinder, the upper cone and the lower cone are buckled and are arranged in a staggered mode in the longitudinal space, and an overflow area is limited between the upper cone and the outer cylinder;

the inner cylinder is arranged on the upper cone through the groove legs so as to obtain a settling zone in a limited manner between the lower cone and the inner cylinder.

Preferably, a plurality of settling plates which are matched with the grooves in space are arranged on the outer edge of the inner cylinder;

the number of the sedimentation plates is matched with the grooves, each sedimentation plate starts from one end of one of the groove legs and is in a spiral rising shape on the outer side wall of the inner cylinder, the bottom of each sedimentation plate is provided with an included angle of 27-32 degrees, and the top of each sedimentation plate is provided with an included angle of 55-65 degrees;

each settling plate is arranged at a preset distance from the inner side wall of the outer side.

Preferably, at least one circle of exhaust holes are formed in the inner cylinder below the joint of the inner cylinder and the upper cone.

Preferably, the lower end of the lower cone and the outer cylinder form an included angle of 55-63 degrees.

Preferably, a first interface for feeding sewage and/or pumping sludge is arranged above the barrel body;

a second interface for discharging supernatant is arranged above the outer cylinder;

and a third interface for exhausting is arranged above the inner cylinder.

A method for using the gas-liquid-solid three-phase separator in integrated sewage treatment equipment, the mixed fluid to be treated input from the upper end of the inner cylinder is output to the settling zone from the groove under the action of pressure;

the fluid in the settling zone rises along the spiral direction of the settling plate, and under the matching of the upper cone and the lower cone, the supernatant fluid turns over the overflow zone to flow to the gap between the outer cylinder and the inner cylinder and is output from the second interface after exceeding the preset height;

under the action of the settling plate, to-be-precipitated substances in the fluid are condensed and attached to the inner lower side of the spiral settling plate, are agglomerated and fall to the outer side of the lower cone after being more condensed, and enter the inner barrel through the grooves again under the condition that the inner barrel and the outer barrel have no pressure difference or negative pressure, so that the sludge is refluxed under the condition of no power, and the sludge is convenient to pump out at the later stage;

when the fluid is precipitated, the gas in the fluid is blocked by the upper cone body when the precipitation plate ascends, returns to the inner barrel through the exhaust hole and is released from the third interface, and the gas, the liquid and the solid are separated.

The utility model discloses at least, include following beneficial effect: one of which, the utility model discloses a be connected of inner tube and urceolus, the intercommunication mode has all been improved, set up matched with slot and groove foot promptly for the inner tube is carried the volume with the deposit of urceolus in the fluid of sedimentation process and is showing the increase, and at the different time quantum of sediment, the cubic biomembrane of mud formation can in time get back to interior bucket through the slot and further participate in biochemical reaction, can not appear subsiding mud and can't return interior bucket for a long time and the ammoniation come-up because of the oxygen deficiency, and the precipitation effect is more ideal.

And secondly, the utility model discloses a set up on the outer setting of inner tube and cooperate the sediment board with the slot to further through the injecing of its angle, its tilt up angle and inward inclination structural design have increased flow distance and extension rise time promptly, thereby prolonged the rise flow time, make the effect of deposiing improve 80%.

Thirdly, the utility model discloses a sediment board has dip angle and inside dip angle structure in the design for mud very easily adheres to in spiral sediment inboard, forms unstable biomembrane, forms dissolved oxygen concentration gradient outside the biomembrane, and inside oxygen deficiency, outside dissolved oxygen are sufficient, make the inside denitrification reaction that carries on of biomembrane, and outside nitration makes the organic matter clearance improve more than 30%.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic structural diagram of an apparatus for realizing gas-liquid-solid three-phase separation in sewage treatment according to an embodiment of the present invention.

Detailed Description

The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.

It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.

It should be noted that in the description of the present invention, the terms indicating the orientation or the positional relationship are based on the orientation or the positional relationship shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the indicated 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 explicitly stated or limited otherwise, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are used in a broad sense, and for example, "connected," may be fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediate medium, or connected between two elements.

Fig. 1 shows a realization form of a device for realizing gas-liquid-solid three-phase separation in sewage treatment according to the present invention, which comprises a barrel body composed of a double-layer concentric outer barrel 1 and an inner barrel 2, and a biological reaction material mechanism (not shown) arranged in the inner barrel, wherein the reaction mechanism can be arranged into rope-shaped biological filler according to needs, which can be arranged in the inner barrel through a matching hook, and is not specifically described again because it belongs to the prior art in sewage treatment, the bottom of the outer barrel is provided with a lower cone 5 concentric with the outer barrel, and the upper end of the outer barrel is configured to be connected with the inner side wall of the outer barrel, in the structure, the structure is designed through the structure of the lower cone, and compared with the prior art, the two ends of the lower cone are directly connected with the outer barrel, and the connection mode of the inner barrel can be matched;

the outer side wall of the inner cylinder is provided with an upper cone 3, the maximum diameter of the lower end of the inner cylinder is configured to be smaller than the maximum diameter of the outer cylinder, the upper cone and the lower cone are buckled and are arranged in a staggered mode in the longitudinal space, so that an overflow area is limited between the upper cone and the outer cylinder, in the structure, fluid output by the inner cylinder is limited in space through the matched upper cone, the upper cone and the lower cone are always located in an upper settling area, the upper cone and the lower cone are arranged in a staggered mode in space, the diameter of the upper cone and the lower cone is limited, an overflow area 8 of supernatant is further limited between the upper cone and the lower cone, and the processed supernatant can be output as soon as possible;

the inner cylinder is provided with a plurality of grooves 6 at the bottom edge and a plurality of groove feet 7 are obtained by limiting between adjacent grooves, the inner cylinder is arranged on the upper cone through the groove feet to obtain a settling zone 9 by limiting between the lower cone and the inner cylinder, in the structure, the structure of the inner cylinder is limited and the matching mode of the inner cylinder is changed, so that compared with the prior art, the structure changes the direct connection between the inner cylinder and the outer cylinder and changes the mode of outputting fluid to the outer cylinder, namely the through type inner cylinder and the outer cylinder are communicated only through the grooves of the bottom edge ratio of the inner cylinder, the through type inner cylinder and the outer cylinder are communicated, the through type inner cylinder and the outer cylinder are convenient to output fluid from the inner cylinder to the outer cylinder, and block-shaped sediments are convenient to return to the inner cylinder for further reaction in different processing stages at the later stage, the reaction effect of the through type inner cylinder is ensured to meet the use requirement, in the scheme, the upper cone, compared with the prior art, the volume of the sediment conveying of the inner barrel and the outer barrel in the fluid in the sedimentation process is obviously increased through the grooves, the massive biomembrane formed by the sludge can timely return to the inner barrel through the grooves to further participate in biochemical reaction in different sedimentation time periods, ammoniation floating can not occur, and the sedimentation effect is more ideal.

In another example, as shown in fig. 1, a plurality of settling plates 4 are arranged on the outer edge of the inner cylinder and are matched with the grooves in space, and the settling plates are used for limiting the flow speed of the fluid in the rising process after the fluid is output from the inner cylinder to the outer cylinder through the action of the settling plates, so that the controllability of the conveying path and the conveying speed of the fluid is better, the reaction treatment effect of the equipment is further ensured, and the reaction speed is increased;

wherein, the number of the settling plates is matched with the grooves, namely the width of the grooves is consistent with the distance between the spiral settling plates, so that unstable biomembranes attached to the spiral settling plates can timely return to the inner barrel through the grooves after falling off, each settling plate starts from one end of one of the groove feet and is in a spiral rising shape on the outer side wall of the inner barrel, the bottom of each settling plate is provided with an included angle of 27-32 degrees (the preferred angle is 30 degrees), the top of each settling plate is provided with an included angle of 55-65 degrees (the preferred angle is 60 degrees), the arrangement position is limited by the arrangement mode of the settling plates in the structure, each settling plate can correspond to one groove foot in space, the output path and the speed of the flow output from each groove foot are controllable, the output mode is changed into a spiral mode, and the matching degree of the settling effect and the fluid output speed is higher, the deposit is close to the inner lower side of the precipitation plate to be adhered under the action of mechanics, and after the deposit reaches a certain volume, the deposit moves downwards and is input into the inner cylinder again through the groove;

the technical improvement is that the device in the prior art does not have a spiral sedimentation plate, the sludge entering the outer barrel rises too fast, the sedimentation effect is poor, and the sludge flows under the guidance of the spiral sedimentation plate in the rising process, because of the special upward inclination angle and inward inclination angle structure of the spiral sedimentation plate, the flow distance is increased and the rising time is prolonged, so the rising flow time is prolonged, and the sedimentation effect is improved by 80 percent; meanwhile, the special upward inclination angle and inward inclination angle structures of the spiral precipitation plate enable sludge to be easily attached to the inner side of the spiral precipitation plate to form an unstable biological membrane, a dissolved oxygen concentration gradient is formed in the biological membrane, oxygen is deficient in the interior, dissolved oxygen in the exterior is sufficient, denitrification reaction is carried out in the interior of the biological membrane, and the removal rate of organic matters is improved by more than 30% through the exterior nitrification reaction. Specifically, in order to ensure the using effect, a spiral body formed by the settling plates is inclined by 60 degrees from top to bottom, the included angle between the inward inclination and the inner cylinder is 30 degrees, the number and the volume are 12 according to needs, the outer circumference of the inner cylinder is in a coiled dragon shape of 30 degrees, the distance between the spiral body and the outer cylinder can be set in 2mm according to needs and is matched with each spiral settling plate, corresponding 12 grooves are arranged below the inner cylinder, and the 12 grooves are equally divided into a circle with the width of about 25cm and the height of 5cm so as to be connected with the lower cone.

In another example, as shown in fig. 1, the inner barrel is provided with at least one circle of vent holes 10 below the connection part with the upper cone, and the vent holes are used for enabling gas to be blocked by the upper cone through the rising of the spiral settling plate during the movement of fluid and to return to the inner barrel through the vent holes below the connection part of the upper cone and the inner barrel, so that the separation of the gas and the fluid is realized.

In another example, as shown in fig. 1, an included angle of 55-63 degrees is formed between the lower end of the lower cone and the outer barrel, and the included angle is defined through the angle, so that after the diameters of the outer barrel and the inner barrel are defined, the distance between the outer barrel and the inner barrel is controlled, and the treatment effect of the inner barrel meets the use requirement when the inner barrel is applied to miniaturization treatment.

In another example, as shown in fig. 1, a first interface 11 for feeding sewage and/or pumping sludge is arranged above the barrel body, and is used for inputting the mixed fluid to be treated inwards through the first interface, and further the pipeline of the sludge pumping pump can be communicated with the inner barrel through the first interface, so that the sludge pumping pump can pump the sludge after treating the mixed fluid for a predetermined time or a predetermined volume and a predetermined concentration, and the structural mode is designed so that the sludge pumping pipe does not cause any interference to the fluid in the treatment process compared with the prior art that the sludge pumping pipe is directly arranged in the barrel, thereby ensuring the treatment effect;

a second interface 12 for discharging the supernatant is arranged above the outer cylinder, and the second interface is used for being communicated with external equipment through a matched pipeline when the liquid level of the supernatant exceeds the second interface after the equipment is treated for a certain time;

the inner tube top is provided with the third interface 13 that is used for carminative, and it is used for controlling the pressure of inner tube through top second interface and external intercommunication when pressure is too big in the inner tube, and can set up matched with check valve at the third interface as required, deflates under pressure surpasss predetermined requirement, guarantees simultaneously that the pressure messenger in the bucket is in predetermined range at last, and then guarantees the stability of its treatment effect.

under the action of the settling plate, to-be-precipitated substances in the fluid are condensed and attached to the inner lower side of the spiral settling plate, are agglomerated and fall to the outer side of the lower cone after being more condensed, and enter the inner barrel again through the grooves under the condition that the inner barrel and the outer barrel have no pressure difference or negative pressure, so that the sludge is refluxed under the condition of no power, and the sludge is conveniently pumped out at the later stage;

when fluid deposits, gas in the fluid is blocked by the upper cone body along with the rising of the deposition plate, returns to the inner barrel through the exhaust hole, and then is released from the third interface, so as to realize gas, liquid and solid separation, the scheme includes but is not limited to the precipitation of the sewage treatment equipment, and the application method is provided, through the barrel type three-phase separator with a concentric structure, the continuous deposition and drainage operation can be carried out, and the application principle lies in that: when fluid (containing gas, liquid and suspended matters) mixed liquor is added from the upper part of the inner barrel, the mixed liquor enters the outer barrel through a groove between a lower cone and a groove foot connected with the inner barrel under the action of pressure, and when the mixed liquor meets a spiral precipitation plate and rises to an upper cone along the spiral precipitation plate, supernatant fluid flows to the outer barrel through a gap between the lower edge of the upper cone and the outer barrel and continues to precipitate, precipitates are condensed and attached to the inner lower side of the spiral precipitation plate under the action of the upper cone and the spiral precipitation plate, and when the precipitates are condensed more, the precipitates fall to the outer side of the lower cone in a conglobation manner, and under the condition that the pressure difference or negative pressure does not exist between the inner barrel and the outer barrel, sludge is returned to participate in next; the gas rises through the spiral settling plate and is blocked by the upper cone and returns to the inner barrel through a small hole (exhaust hole) of the inner barrel below the upper end of the upper cone; thus, the gas escapes from the inner barrel, clear water flows out from the upper part of the outer barrel, suspended solid is precipitated to the bottom of the inner barrel, the separation of gas, liquid and solid is realized, the scheme changes the hole on the inner barrel into the groove matched with the groove foot, so that condensed materials can effectively return to the inner barrel through the groove when forming a larger blocky structure after precipitation, secondary or multiple reactions are carried out under the action of biological filler, so as to achieve the ideal treatment effect, the matched spiral plate is arranged on the outer side wall of the inner barrel, the process of sewage condensation treatment is obviously increased, the reaction condensation effect can be enhanced along with the reaction condensation effect, meanwhile, the flow rate and the pressure in the treatment process can be increased in the spiral treatment process, the condition that the condensed materials are hung on the spiral plate is greatly improved while the treatment effect is ensured, the whole treatment effect and the superiority of the whole treatment are obviously improved, among the effectual prior art that has solved, equipment ability normal operating satisfies the sewage treatment effect when initial use, nevertheless after long-term use, constantly along with forming into cubic biomembrane at the outer bucket because of sewage, the cubic biomembrane that drops can not effectual outside from return to the interior bucket and carry out the secondary reaction, deposit cubic mud under the long-term oxygen deficiency condition, can the ammoniation come-up and accompany the supernatant and outwards release, later stage emission treatment effect can not reach the processing requirement, and the condensate hangs the technical problem who influences its post treatment effect on the inner tube.

The utility model relates to an application method is provided in integration sewage treatment device's miniaturization, can regard as the application of SBR sewage treatment process technology modified key engineering technical device, with former SBR sewage treatment bucket (pond), design into two concentric buckets (ponds) inside and outside, can become biochemical bucket (pond) at interior bucket (pond) installation aeration equipment and agitating unit, outer bucket (pond) is sedimentation tank (pond), the bottom of interior bucket (pond) is connected through this discovery's three-phase separator, can be with former treatment process must preface in time (accomplish into water, the clearance, aeration, deposit, five processes of drainage are after one cycle, discharge the clear water that deposits back and carry out next cycle) and change into water, the clearance, three process preface of aeration, deposit, two processes of drainage are continuous; sewage enters from the top of the inner barrel (tank), clear water escapes from the upper part of the outer barrel (tank) (the water inlet is slightly higher than the water outlet), sludge circulates at the lower parts of the inner barrel, the three-phase separator and the outer barrel, and the miniaturization and treatment effects of the equipment are obviously improved.

Example (b):

the utility model discloses a device for realizing three-phase separation of gas, liquid and solid (suspended solid) in sewage treatment equipment and an application method thereof, which comprises the following steps: the barrel body comprises a double-layer concentric outer barrel, an inner barrel, a lower cone, an upper cone and a spiral settling plate; assuming that the diameter or the side length of an outer barrel (the circle is the diameter, the square is the side length, the same applies below) is R, the height is H, and the number of the spiral settling plates is N; the structure and structure are as follows:

an outer barrel: the cylindrical (cubic) barrel with the diameter (or side length) R and the height H is a bearing main body and an outer structure of the three-phase separator.

A lower cone: a cone with a lower radius of 0.5R and an upper radius R, which is arranged at the bottom of the outer barrel and is connected with the bottom of the outer barrel and the inner side wall.

An inner barrel: the radius is 0.6R-0.8R, the outer barrel and the lower cone are concentric, the outer barrel and the lower cone are placed on the lower cone, the lower edge of the inner barrel is provided with N grooves, the height of each groove is 3-8 cm, if the width of a groove foot is L, the length of a groove (arc) is pi R/N-L, the groove foot is connected with the lower cone, and the inner barrel and the outer barrel are only communicated at the bottom through the grooves.

Spiral settling plate: the spiral sedimentation plates are inward and downward, form an angle of 30 degrees with the inner barrel from top to bottom, form an angle of 60 degrees from top to bottom, and form a spiral shape on the outer side wall of the inner barrel, each spiral sedimentation plate starts from a corresponding inner barrel groove foot, is coiled at 60 degrees on the horizontal exaggeration outside the inner barrel, and has a width which is less than 10mm from the inner side of the outer barrel;

an upper cone body: the lower radius is 0.99R, the upper radius is the same as the inner barrel, the lower end of the lower radius is positioned above the spiral sedimentation plate between the inner barrel and the outer barrel, the upper end of the lower radius is connected with the outer wall of the inner barrel, and a small hole is arranged below the connection part of the upper radius and the inner barrel.

For further explanation the utility model discloses the technique combines experiment flow and corresponding data for prior art's superiority, to prior art and the utility model discloses carry out the comparative explanation, further demonstrate the superiority of this scheme:

1. the sludge precipitated in the outer barrel can return to the inner barrel in time

Original structure is to beat the aperture of diameter about 5mm at the inner barrel lower extreme, the result is found in practice, outer bucket surface can adhere to mud and form active sludge membrane, called the biofilm among the sewage treatment process, the biofilm has life cycle, ageing biofilm massing drops, can not get back to the inner bucket through the aperture on descending the awl, because of interior bucket aeration oxygenation, outer bucket oxygen deficiency, cubic mud that can not return the inner bucket can be with intracellular nitrate nitrogen about 24 hours under the state of oxygen deficiency, convert into ammonial nitrogen (ammonia), the cubic mud of adhering to the ammonia floats fast, wear out to reach outer bucket upper portion easily between upper cone and the outer bucket, discharge along with the clear water.

After the original small holes are changed into grooves, the width of the inner barrel can reach 15 cm, the height of the inner barrel is designed to be 8 cm by calculating 12 grooves with the diameter of 1.7 m, and the size of a sludge blocky film falling off from the outer barrel is not more than 5 cm.

2. The floating distance of the sludge is increased by 2 times, the time is prolonged by 8 times, and the sludge is difficult to float to the upper cone

Taking 5m3/d equipment as an example, the original structure has no spiral sedimentation plate, when the concentration of the activated sludge is 3000mg/L, about 3.5kg of mud-water mixture is injected into the inner barrel from the bottom of the outer barrel with the depth of 1.5 meters per minute through small holes, the measurement depth (measured from the water surface downwards) of the SS concentration of 40mg/L is 0.34 meter, and the depth of the SS concentration of 20mg/L is 0.07 meter.

After addition of the spiral settling plate, about 3.5kg of the sludge-water mixture was also fed from the bottom of the outer barrel 1.5 m deep per minute through the gutter by the inner barrel after addition of the same 3000mg/L sludge concentration, with a depth of 0.64 m measured at a sludge concentration of 40mg/L (measured from the water surface downwards) and a depth of 0.27 m measured at a sludge concentration of 20 mg/L.

The above scheme is merely illustrative of a preferred example, and is not limiting. When the utility model is implemented, the proper replacement and/or modification can be carried out according to the requirements of users.

The number of apparatuses and the scale of the process described here are intended to simplify the description of the present invention. Applications, modifications and variations of the present invention will be apparent to those skilled in the art.

While embodiments of the invention have been disclosed above, it is not intended to be limited to the applications listed in the specification and the examples. It can be applicable to various and be fit for the utility model discloses a field completely. Additional modifications will readily occur to those skilled in the art. The invention is therefore not to be limited to the specific details and illustrations shown and described herein, without departing from the general concept defined by the claims and their equivalents.

Claims

1. a device that realizes gas-liquid-solid three-phase separation in sewage treatment, comprises the barrel body that is made up of double-layer concentric outer cylinder, inner cylinder and is arranged on the biological reaction material mechanism in the inner cylinder, it is characterized in that, described outer cylinder The bottom is provided with a concentric lower cone, the upper end of which is configured to be connected with the inner side wall of the outer cylinder;

The outer side wall of the inner cylinder is provided with an upper cone, the maximum diameter of its lower end is configured to be smaller than the maximum diameter of the outer cylinder, the upper cone and the lower cone are in a buckled shape, and are arranged staggered in the longitudinal space , to define the overflow area between the upper and lower cones and the outer cylinder;

The bottom edge of the inner cylinder is provided with a plurality of grooves, and a plurality of groove feet are defined between the adjacent grooves. A precipitation zone is defined between them.

2. The device for realizing gas-liquid-solid three-phase separation in sewage treatment according to claim 1, wherein a plurality of precipitation plates that are spatially matched with grooves are arranged on the outer edge of the inner cylinder ;

Wherein, the number of the precipitation plates is matched with the grooves, and each precipitation plate starts from one end of one of the groove feet, and spirally rises on the outer side wall of the inner cylinder, and the bottom of each precipitation plate has an angle of 27-32 degrees. , the top of each precipitation plate has an included angle of 55-65 degrees;

There is a predetermined distance between each precipitation plate and the inner side wall of the outer side.

3 . The device for realizing gas-liquid-solid three-phase separation in sewage treatment according to claim 1 , wherein the inner cylinder is provided with at least one circle of exhaust holes below the connection with the upper cone. 4 .

4 . The device for realizing gas-liquid-solid three-phase separation in sewage treatment according to claim 1 , wherein the lower end of the lower cone and the outer cylinder have an included angle of 55-63 degrees. 5 .

5. The device for realizing gas-liquid-solid three-phase separation in sewage treatment according to claim 1, wherein a first interface for feeding sewage and/or extracting sludge is provided above the barrel;

A second interface for discharging supernatant is provided above the outer cylinder;

A third port for exhausting is provided above the inner cylinder.