CN209669013U - Internal-circulation type anaerobism while denitrification methane-producing reactor - Google Patents

Abstract

The utility model belongs to field of sewage treatment equipment, it is related to a kind of internal-circulation type anaerobism denitrification methane-producing reactor simultaneously, driving motor is fixed on the upper end of gas chamber, and the motor shaft of driving motor is connected with axial flow type agitating valve, and the lower end of gas chamber is connected with three phase separator；The lower end of three phase separator is connected with deflector a, and the lower end of deflector a is connected with main reaction region, and the lower end of main reaction region is connected with deflector b, and the lower end of deflector b is connected with sludge area；The main reaction region is made of reaction outer cylinder and circulation inner cylinder, it is connected with exhaust pipe on gas chamber wall, outlet pipe is connected on the wall of three phase separator, sludge area bottom is equipped with blow-down pipe, there are one water inlet pipe, water inlet pipe is extend into circulation inner cylinder side wall across sludge area.The utility model takes up little area, ratio of height to diameter is big, can meet various concentration, not have to water inlet flow rates demand.

Description

Internal-circulation type anaerobism while denitrification methane-producing reactor

Technical field

The utility model belongs to field of sewage treatment equipment, and more particularly, to a kind of internal-circulation type anaerobism, denitrification is produced simultaneously Methane reactor.

Background technique

With the quickening of global industry and urbanization step, Organic Pollutants In Water component is increasingly sophisticated, difficult to degrade Organic pollutant ratio is constantly promoted, and the nutriments such as nitrogen phosphorus are increasing, and water environment relatively difficult to achieve is dirty for single treatment technology The efficient control and improvement of dye.In past ten years, the coupling of correlation processing technique can be in less reactor very because of it To be realize in single-reactor the substances such as Organic carbon and nitrogen and p and s with removing, while have process is compact, land occupation less, energy It reaches the recovery section energy, the advantages such as energy consumption be effectively reduced and the favor by scholar and market.

Anaerobism simultaneously denitrification methane phase (Simultaneous denitrification and methanogenesis, SDM) technique belongs to a kind of typical biological coupling processing technique.SDM is to be metabolized anaerobic methane production process and biological denitrification It is coupled in same anaerobic reactor, promotes cometabolism between flora, promote hydrolysis acidification efficiency, under the collaboration of denitrification flora Degradation of organic substances simultaneously generates anti-acid ability in basicity enhancing reactor, while denitrification process can utilize anaerobic methane production process The several kinds of carbon source of middle generation realizes carbon source supplement, effective lifting process stability in process itself.

Existing anaerobic bio-treated equipment and technology when handling high load capacity organic sewage there are hydrolysis acidification low efficiency, easily The defects of accumulation propionic acid, anti-shock loading performance is poor, and handle and still remain the substances such as a large amount of high-quality carbon and nitrogen sources in water outlet, have Machine object removal rate is limited.Existing biological denitrification techniqueflow is long, substance energy consumption is big, is limited to deficient into carbon source high-quality in water Weary, stability is low.

Up-flow anaerobic sludge blanket (UASB) is current anaerobic reactor common on the market, under high organic loading rate With good organic matter removal ability and stability.Granule sludge inside UASB needs to meet suspended state, but low Concentration organic sewage processing aspect, the methane content that the granule sludge inside UASB generates is few, cannot provide that meet granule sludge outstanding The enough buoyancy of floating state；The rising impact force that the water inlet of UASB generates simultaneously, which is also required to meet, makes granule sludge in suspended state Condition, therefore intake flow rates limited.

Utility model content

Purpose of utility model

The purpose of this utility model is that processing sewage of low concentration effect existing for existing UASB is poor, influent load limits to solve Denitrification methane phase granule sludge is difficult to the problem tamed, be enriched with and cultivated simultaneously for the problem of processed and anaerobism, provides one kind and accounts for Ground is small, ratio of height to diameter is big, can meet various concentration, without the internal-circulation type sewage-treating reactor for flow rates demand of intaking.

Technical solution

A kind of internal-circulation type anaerobism denitrification methane-producing reactor simultaneously, it is characterised in that: including driving motor, gas chamber, Three phase separator, main reaction region and sludge area；Driving motor is fixed on the upper end of gas chamber, and the motor shaft of driving motor is connected with axis The lower end of streaming agitating paddle, gas chamber is connected with three phase separator；The lower end of three phase separator is connected with deflector a, deflector a's Lower end is connected with main reaction region, and the lower end of main reaction region is connected with deflector b, and the lower end of deflector b is connected with sludge area；It is described Main reaction region is made of reaction outer cylinder and circulation inner cylinder, is equipped with flow channel for liquids hole a among deflector a and deflector b, is recycled inner cylinder Top and bottom be individually fixed on deflector a and deflector b, deflector a and deflector b are located in reaction outer cylinder and circulation Multiple flow channel for liquids hole b are equipped between cylinder, axial flow type agitating valve passes through deflector a and is located in circulation inner cylinder；The gas chamber wall On be connected with exhaust pipe, be connected with outlet pipe on the wall of the three phase separator, sludge area bottom is equipped with blow-down pipe, passes through dirt There are one water inlet pipe, water inlet pipe is extend into circulation inner cylinder the side wall in mud area；Water conservancy diversion dead axle device is fixed on the interior of circulation inner cylinder On wall, axial flow type agitating valve passes through water conservancy diversion dead axle device, and water conservancy diversion dead axle device is used to support the lower end of axial flow type agitating valve.

Inert gas, which is communicated with, on the three phase separator wall is filled with/discharge pipe.

The axial flow type agitating valve upper end passes through the motor axis connection of universal joint and driving motor.

Funnelform sludge bucket is equipped in the sludge area, the lower end in sludge area is skirt, and blow-down pipe is located at sludge mud The bottom end of bucket, water inlet pipe are inserted and fixed from the side wall in sludge area and sludge bucket.

The multiple groups blade of identical spacing is welded on the axial flow type agitating valve.

The reaction outer cylinder is provided with granule sludge or the filler for sludge apposition growth.

Settling zone skew wall, reflecting plate, gas gathering mask and triangle overflow weir, reflecting plate is provided in the three phase separator to fix It is in inverted funnel shape in the inner wall of three phase separator, settling zone skew wall is located at the upside of reflecting plate, and settling zone skew wall is fixed on three-phase The inner wall of separator is connected in positive funnel-form and with the upper end of reflecting plate, and the upside of settling zone skew wall is settling zone, and settling zone is oblique The upside of wall is equipped with the gas gathering mask of inverted funnel shape, and the upper end of gas gathering mask is connected with gas chamber, and the side of gas gathering mask is overflow equipped with triangle Weir is flowed, triangle overflow weir is fixed on the inner wall of three phase separator.

The connectivity part of the settling zone skew wall and reflecting plate accompanies three phase separator diversion unit sieve, three phase separator water conservancy diversion Combination sieve is composed of the three phase separator water conservancy diversion sieve plate a of top and the three phase separator water conservancy diversion sieve plate b of lower section, three-phase The sieve of separator water conservancy diversion sieve plate a and three phase separator water conservancy diversion sieve plate b are at staggered.

By flanged joint, gas chamber passes through flanged joint with three phase separator for driving motor and gas chamber；Three phase separator with Deflector a is connected by flanged joint, main reaction region and deflector b by flange by flanged joint, deflector a and main reaction region It connects, deflector b and sludge area pass through flanged joint；The flange of each component connection is sealed with O-ring；Used in flanged joint Bolt both ends are all surrounded by silicone-rubber seals, have nut accommodating chamber in the silicone-rubber seals and lower end is varus shape bottom edge, interior The contact surface for turning over shape bottom edge and ring flange is rough surface, and rough surface smears silicone grease or vaseline.

Advantage and effect

The utility model has the advantages and positive effects of:

(1) the utility model be handle sewage reaction unit, take up little area, ratio of height to diameter it is big；

(2) various concentration can be met, without the requirement for flow velocity of intaking；

(3) have carbon nitrogen remove together, have the advantages of carbon source efficiently utilizes concurrently；

(4) additional carbon is not needed, cost of sewage disposal is saved；

(5) the anaerobism culture of denitrification methane phase granule sludge simultaneously can be reduced to greatest extent and is tamed the time.

(6) the intermittent operation that equipment may be implemented, reduces energy consumption, improves the efficiency of equipment；

(7) it is directed to the water quality characteristic of carbon containing nitric wastewater, the utility model uses stable treatment process, and water outlet is steady It is fixed, realize the resource utilization of sewage；

(8) project cost is low, and operating cost is low, and all has tribute in terms of economic benefit, environmental benefit and social benefit Offer meaning.

Detailed description of the invention

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

Fig. 2 is the structural schematic diagram of deflector a；

Fig. 3 is the structural schematic diagram of water conservancy diversion dead axle device；

Fig. 4 is the structural schematic diagram of three phase separator diversion unit sieve；

Fig. 5 is the structural schematic diagram of three phase separator water conservancy diversion sieve plate a；

Fig. 6 is the structural schematic diagram of three phase separator water conservancy diversion sieve plate b；

Fig. 7 is the structural schematic diagram for the bolt that flange is surrounded by silicone-rubber seals；

Fig. 8 is three phase separator fluid schematic.

Description of symbols: 1- driving motor；2- gas chamber；3- three phase separator；4- deflector a；The main reaction region 5-；6- axis Streaming agitating paddle；7- water conservancy diversion dead axle device；8- deflector b；9- sludge area；10- exhaust pipe；11- universal joint；12- inert gas fills Enter/discharge pipe；13- triangle overflow weir；14- gas gathering mask；15- outlet pipe；The settling zone 16-；The settling zone 17- skew wall；18- reflection Plate；19- reacts outer cylinder；20- recycles inner cylinder；21- water inlet pipe；22- sludge bucket；23- blow-down pipe；24- skirt.25- liquid flow Road hole a；26- flow channel for liquids hole b；27- three phase separator diversion unit sieve；28- three phase separator water conservancy diversion sieve plate a；29- three-phase separate From device water conservancy diversion sieve plate b；30- bolt；31- silicone-rubber seals；32- nut accommodating chamber.

Specific embodiment

The utility model is described further with reference to the accompanying drawing:

As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, a kind of internal-circulation type anaerobism denitrification methane phase reaction simultaneously Device, including driving motor 1, gas chamber 2, three phase separator 3, main reaction region 5 and sludge area 9；Driving motor 1 can carry out it is positive and Backwards rotation, driving motor 1 are fixedly connected by flange in the upper end of gas chamber 2, and the motor shaft of driving motor 1 passes through universal joint 11 It is connected with axial flow type agitating valve 6, the multiple groups blade of identical spacing is welded on axial flow type agitating valve 6, is used as in circulation inner cylinder 20 Water flow plug-flow.The lower end of gas chamber 2 is connected with three phase separator 3 by flange；Inertia is communicated on 3 wall of three phase separator Gas is filled with/discharge pipe 12, and there is deflector a4 in the lower end of three phase separator 3 by flanged joint, and the lower end of deflector a4 passes through Flanged joint has main reaction region 5, and there is deflector b8 in the lower end of main reaction region 5 by flanged joint, and the lower end of deflector b8 passes through Flanged joint has sludge area 9；The main reaction region 5 is made of reaction outer cylinder 19 and circulation inner cylinder 20, and reaction outer cylinder 19 is provided with Granule sludge or filler for sludge apposition growth.Deflector b8 is used for support granule sludge or filling out for sludge apposition growth Material, is also used for the sludge for preventing water flow from directly washing away inside bucket.Flow channel for liquids hole is equipped among deflector a4 and deflector b8 A25 is save the cost and convenient for production, and the structure of deflector b8 is identical as the structure of deflector a4, recycles the upper end of inner cylinder 20 It is threadably secured respectively with lower end on the flow channel for liquids hole a25 of deflector a4 and deflector b8, deflector a4 and deflector B8, which is located between reaction outer cylinder 19 and circulation inner cylinder 20, is equipped with multiple flow channel for liquids hole b26, and axial flow type agitating valve 6 passes through deflector A4 is located in circulation inner cylinder 20；It is connected with exhaust pipe 10 on 2 wall of gas chamber, is connected with out on the wall of the three phase separator 3 Water pipe 15, outlet pipe 15 is U-shaped outlet pipe, U-shaped to be fixed in circulation by welding with fluid-tight, water conservancy diversion dead axle device 7 On the inner wall of cylinder 20, axial flow type agitating valve 6 passes through water conservancy diversion dead axle device 7, and water conservancy diversion dead axle device 7 is used to support axial flow type agitating valve 6 Lower end, water conservancy diversion dead axle device 7 can prevent the lower end of axial flow type agitating valve 6 axle center in the biggish situation of revolving speed unstable and swing, Water conservancy diversion dead axle device 7 also has guide functions.Funnelform sludge bucket 22 is equipped in sludge area 9, the lower end in sludge area 9 is skirt 24, blow-down pipe 23 is located at the bottom end of sludge bucket 22, and water inlet pipe 21 is inserted into and consolidates from the side wall in sludge area 9 and sludge bucket 22 Fixed, water inlet pipe 21 is extend into circulation inner cylinder 20.Sludge bucket 22 is used as the excess sludge collected and generated after microbial metabolism, And excess sludge is discharged by blow-down pipe 23；The water inlet pipe 21 is under the action of intake pump, by sewage transport to recycling inner cylinder In 20；The skirt 24 is the pedestal of entire reactor, to bear whole load of reactor.

It is provided with settling zone skew wall 17, reflecting plate 18, gas gathering mask 14 and triangle overflow weir 13 in three phase separator 3, reflects Plate 18 is fixed on the inner wall of three phase separator 3 in inverted funnel shape, and settling zone skew wall 17 is located at the upside of reflecting plate 18, and settling zone is oblique Wall 17 is fixed on the inner wall of three phase separator 3 in positive funnel-form and is connected to the upper end of reflecting plate 18, settling zone skew wall 17 it is upper Side is settling zone 16, and the upside of settling zone skew wall 17 is equipped with the gas gathering mask 14 of inverted funnel shape, upper end and 2 phase of gas chamber of gas gathering mask 14 Connection, gas gathering mask 14 react the nitrogen generated and methane gas into gas chamber 2 to collect；Gas chamber 2 collects reaction outer cylinder 19 The nitrogen and methane gas that middle microbial metabolism reaction generates guarantee have certain pressure to make in gas gathering mask 14 above gas gathering mask 14 Liquid level be no more than the liquid level at triangle overflow weir 13, while being judged whether according to the liquid level in gas gathering mask 14 The gas in gas chamber 2 is discharged.The side of gas gathering mask 14 is equipped with triangle overflow weir 13, and triangle overflow weir 13 is fixed on three phase separator On 3 inner wall, triangle overflow weir 13 is the structure that liquid overflows in reactor, has and maintains liquid level in reactor and make liquid The effect that body uniformly overflows, uniform and stable discharge of the triangle overflow weir 13 to the sewage supernatant after the sedimentation of settling zone 16, It is discharged again by U-shaped outlet pipe 15.The connectivity part of settling zone skew wall 17 and reflecting plate 18 accompanies three phase separator diversion unit sieve 27, Three phase separator diversion unit sieve 27 is by the three phase separator water conservancy diversion sieve plate a28 of top and the three phase separator diversion screen of lower section Plate b29 is composed, and the sieve of three phase separator water conservancy diversion sieve plate a28 and three phase separator water conservancy diversion sieve plate b29 has at staggered Effect reduces collapsing for bubble and splashes, and has the function of water conservancy diversion, while can prevent bulk floc sludge from entering three phase separator 3 Gas gathering mask 14 in block gas gathering mask 14.Sedimentation separation of the settling zone 16 to carry out sludge, is settled down to settling zone skew wall Sludge on 17 is slid again to main reaction region 5；The reflecting plate 18 is to the rising fluidised form in baffling or reflection main reaction region 5 Part of contaminated water and sludge.

The flange of above-mentioned each component connection is sealed with O-ring；As shown in fig. 7,30 liang of bolt used in flanged joint End is all surrounded by silicone-rubber seals 31, has nut accommodating chamber 32 in the silicone-rubber seals 31 and lower end is varus shape bottom edge, interior The contact surface for turning over shape bottom edge and ring flange is rough surface, and rough surface smears silicone grease or vaseline.The installation side of silicone-rubber seals 31 Formula are as follows: smear silicone grease or vaseline in 31 rough surface of silicone-rubber seals first, then by the bolt of bolt 30 before bolt 30 is tightened It emits and is filled in silicone-rubber seals 31 with nut, because silicone-rubber seals 31 are soft, so fill in simply, effortlessly, and it is appropriate Wall thickness can also use adjustable spanner be tightened in the outside of silicone-rubber seals 31.Finally existed using adjustable spanner Nut is tightened for the outside of silicone-rubber seals 31.As long as 30 silica gel sealing of bolt for being surrounded by silicone-rubber seals 31 after tightening 31 not aging of part is damaged, can reach long-term outstanding seal protection.

Reaction outer cylinder 19 is provided with granule sludge or can be filled with the filler for sludge apposition growth, is that active function is micro- The place of the main metabolic activity of biology, the pollutants such as organic matter and nitrate nitrogen in sewage are utilized by microorganism here, are sent out Oxygen of beginning to detest denitrification methane phase process simultaneously, generates nitrogen and methane gas.The effect of the circulation inner cylinder 20 is will to react outer The mixed liquor of sludge and sewage is recycled in cylinder 19, is made have Hydraulic Circulation in main reaction region 5, is met enough hydraulic disturbances, It can reinforce the mass transfer effect of microorganism and sewage, if while under the effect of the reverse plug-flow of axial flow type agitating valve 6 in circulation Sewage in cylinder 20 flows downward, and the sewage of reaction outer cylinder 19 flows up, and granule sludge can be made not to be settled down to sludge mud In bucket 22.

A method of using internal-circulation type anaerobism, denitrification methane-producing reactor handles sewage simultaneously, the method is as follows:

Forward direction starting driving motor 1, axial flow type agitating valve 6 positive plug-flow effect under recycle inner cylinder 20 in sewage to The sewage of upper flowing, reaction outer cylinder 19 flows downward, and intermediate rising, the inside of surrounding decline is presented in reactor whole interior sewage Circulate state；Sewage is transported in circulation inner cylinder 20 by water inlet pipe 21 first, and circulation inner cylinder 20 rises sewage a part warp Reflecting plate 18 is counter to be pushed into reaction outer cylinder 19, organic in sewage by the anaerobism while denitrification methanogenesis of microorganism Object and nitrate nitrogen etc. are converted into methane and nitrogen；A part by 18 water conservancy diversion of reflecting plate, entrainment of in sewage sludge, methane and Nitrogen enters in three phase separator 3, and for sewage behind settling zone 16, supernatant is discharged into triangle overflow weir 13 through 15 row of outlet pipe Out, wherein sludge in settling zone 16 is precipitated to settling zone skew wall 17, then slides to main reaction region 5, and methane and nitrogen are by gas gathering mask 14 collections are discharged into gas chamber 2 by exhaust pipe 12；

Reverse starting driving motor 1, axial flow type agitating valve 6 reverse plug-flow effect under recycle inner cylinder 20 in sewage to The sewage of lower flowing, reaction outer cylinder 19 flows up, and intermediate decline, the inside that surrounding rises is presented in reactor whole interior sewage Circulate state；Sewage is transported in circulation inner cylinder 20 by water inlet pipe 21 first, recycles the sewage in inner cylinder 20 through bucket 23 Top baffling extremely reaction outer cylinder 19；Reaction outer cylinder 19 rises sewage a part and is pushed into circulation inner cylinder 20 through reflecting plate 17 is counter；One Part is entered in three phase separator 3 by 17 water conservancy diversion of reflecting plate entrainment of sludge, methane and the nitrogen in sewage, and sewage is through heavy Behind shallow lake area 16, supernatant is discharged into triangle overflow weir 13 and is discharged through outlet pipe 15, and wherein sludge is precipitated to settling zone in settling zone 16 Skew wall 17, then slide to main reaction region 5, methane and nitrogen to be collected by gas gathering mask 14 into gas chamber 2 and be discharged by exhaust pipe 12.

Three phase separator fluid schematic as shown in figure 8, rise fluidised form sewage and mud mixed liquid entrainment of nitrogen and Methane gas enters in gas gathering mask 14 (number line arrow) under the action of reflecting plate 18.Wherein nitrogen and methane gas enter Be collected in gas chamber 2, when the pressure in gas chamber 2 is larger, sewage and mud mixed liquid in gas gathering mask 14 under pressure, It flows downward along the inner wall of gas gathering mask 14, the reflex through settling zone skew wall 17 enters in settling zone 16 (solid-line curve arrow Head) mud-water separation is carried out, the sludge on sludge settling to settling zone skew wall 17 is slid again to main reaction region 5(imaginary curve arrow).

Obviously, the above embodiments of the present invention is merely examples for clearly illustrating the present invention, and It is not limitations of the embodiments of the present invention, for those of ordinary skill in the art, in above description On the basis of can also make other various forms of variations or variation, all embodiments can not be exhaustive here, It is all to belong to obvious changes or variations that the technical solution of the utility model is extended still in the guarantor of the utility model Protect the column of range.

Claims (9)

1. a kind of internal-circulation type anaerobism while denitrification methane-producing reactor, it is characterised in that: including driving motor, gas chamber, three Phase separator, main reaction region and sludge area；Driving motor is fixed on the upper end of gas chamber, and the motor shaft of driving motor is connected with axis stream The lower end of formula agitating paddle, gas chamber is connected with three phase separator；The lower end of three phase separator is connected with deflector a, under deflector a End is connected with main reaction region, and the lower end of main reaction region is connected with deflector b, and the lower end of deflector b is connected with sludge area；The master Reaction zone is made of reaction outer cylinder and circulation inner cylinder, is equipped with flow channel for liquids hole a among deflector a and deflector b, is recycled inner cylinder Top and bottom are individually fixed on deflector a and deflector b, and deflector a and deflector b are located at reaction outer cylinder and circulation inner cylinder Between be equipped with multiple flow channel for liquids hole b, axial flow type agitating valve pass through deflector a be located at circulation inner cylinder in；On the gas chamber wall It is connected with exhaust pipe, outlet pipe is connected on the wall of the three phase separator, sludge area bottom is equipped with blow-down pipe, passes through sludge There are one water inlet pipe, water inlet pipe is extend into circulation inner cylinder the side wall in area；Water conservancy diversion dead axle device is fixed on the inner wall of circulation inner cylinder On, axial flow type agitating valve passes through water conservancy diversion dead axle device, and water conservancy diversion dead axle device is used to support the lower end of axial flow type agitating valve.

2. internal-circulation type anaerobism according to claim 1 while denitrification methane-producing reactor, it is characterised in that: described three It is communicated with inert gas on phase separator wall and is filled with/discharge pipe.

3. internal-circulation type anaerobism according to claim 1 while denitrification methane-producing reactor, it is characterised in that: the axis Streaming agitating paddle upper end passes through the motor axis connection of universal joint and driving motor.

4. internal-circulation type anaerobism according to claim 1 while denitrification methane-producing reactor, it is characterised in that: the dirt Funnelform sludge bucket is equipped in mud area, the lower end in sludge area is skirt, and blow-down pipe is located at the bottom end of sludge bucket, water inlet pipe It is to be inserted and fixed from the side wall in sludge area and sludge bucket.

5. internal-circulation type anaerobism according to claim 1 while denitrification methane-producing reactor, it is characterised in that: the axis The multiple groups blade of identical spacing is welded on streaming agitating paddle.

6. internal-circulation type anaerobism according to claim 1 while denitrification methane-producing reactor, it is characterised in that: described anti- Outer cylinder is answered to be provided with granule sludge or the filler for sludge apposition growth.

7. internal-circulation type anaerobism according to claim 1 while denitrification methane-producing reactor, it is characterised in that: described three It is provided with settling zone skew wall, reflecting plate, gas gathering mask and triangle overflow weir, reflecting plate in phase separator and is fixed on three phase separator Inner wall is in inverted funnel shape, and settling zone skew wall is located at the upside of reflecting plate, and the inner wall that settling zone skew wall is fixed on three phase separator is in Positive funnel-form is simultaneously connected to the upper end of reflecting plate, and the upside of settling zone skew wall is settling zone, and the upside of settling zone skew wall is equipped with The upper end of funnelform gas gathering mask, gas gathering mask is connected with gas chamber, and the side of gas gathering mask is equipped with triangle overflow weir, triangle overflow weir It is fixed on the inner wall of three phase separator.

8. internal-circulation type anaerobism according to claim 7 while denitrification methane-producing reactor, it is characterised in that: described heavy The connectivity part of shallow lake area skew wall and reflecting plate accompanies three phase separator diversion unit sieve, and three phase separator diversion unit sieve is by top Three phase separator water conservancy diversion sieve plate a and the three phase separator water conservancy diversion sieve plate b of lower section be composed, three phase separator water conservancy diversion sieve plate The sieve of a and three phase separator water conservancy diversion sieve plate b are at staggered.

9. internal-circulation type anaerobism according to claim 1 while denitrification methane-producing reactor, it is characterised in that: driving electricity By flanged joint, gas chamber passes through flanged joint with three phase separator for machine and gas chamber；Three phase separator and deflector a pass through flange Connection, deflector a pass through flanged joint, deflector b and dirt by flanged joint, main reaction region and deflector b with main reaction region Mud area passes through flanged joint；The flange of each component connection is sealed with O-ring；Bolt both ends used in flanged joint are all surrounded by Silicone-rubber seals, there is nut accommodating chamber in the silicone-rubber seals and lower end is varus shape bottom edge, varus shape bottom edge and flange The contact surface of disk is rough surface, and rough surface smears silicone grease or vaseline.