CN202246248U - Square non-forcing inner circulating anaerobic treatment device - Google Patents
Square non-forcing inner circulating anaerobic treatment device Download PDFInfo
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- CN202246248U CN202246248U CN2011203680121U CN201120368012U CN202246248U CN 202246248 U CN202246248 U CN 202246248U CN 2011203680121 U CN2011203680121 U CN 2011203680121U CN 201120368012 U CN201120368012 U CN 201120368012U CN 202246248 U CN202246248 U CN 202246248U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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Abstract
A square non-forcing inner circulating anaerobic treatment device is characterized in that the treatment device comprises a first reacting area, a lower three-phase separator, a second reacting area and an upper three-phase separator which are sequentially connected from the bottom to the top. A water distributor is arranged at the bottom of the first reacting area and communicated with a water inlet pipe. A water outlet device is arranged at the top of the upper three-phase separator. A water gas separating tank is arranged above the upper three-phase separator, a gas discharging pipe is arranged at the top of the water gas separating tank, the bottom of the water gas separating tank is communicated with a spoil disposal pipe at the bottom of the first reacting area through a descending pipe, the upper portion of the water gas separating tank is communicated with the lower three-phase separator through an ascending pipe, and the water gas separating tank above the ascending pipe is provided with a biogas pipe communicated with the upper three-phase separator. The square non-forcing inner circulating anaerobic treatment device is simple in inner structure, good in structural stability and small in hydraulic loss and lift.
Description
Technical field
The utility model relates to a kind of square optional internal circulating anaerobic treatment unit.
Background technology
One type of important technology that the organic waste water biological chemistry is handled is an anaerobic treatment, and anaerobic reaction device is the key that waste water carries out the anaerobic treatment of efficient stable.Anaerobic waste water reaction unit commonly used at present has: UASB reactor drum, anaerobic biofilter, IC reactor drum and fluidized-bed reactor etc.
The traditional IC anaerobic reactor is superposeed up and down to connect by two UASB reactor drums and constitutes, height 18～25m, and the aspect ratio majority is 4～8, generally is made up of 5 essential parts: mixing zone, EGSB district, precision processing district, internal circulation system and exhalant region.Wherein internal circulation system is the core texture of IC technology, is made up of one-level triphase separator, biogas-lift pipe, gas-liquid separator and muddy water downtake etc.At present, internal circulation system often need increase outside aqueous vapor solid forced circulation device, for example circulating water pool, reflux pump.The constructional feature of IC reactor drum: circle, steelwork, aspect ratio are big, in that operating load is high, floor space is few, have significant advantage aspect the operation stability.
But there are some problems in the traditional IC anaerobic reactor; For example: internal structure and system form complicated (the external forced cycle facilities need be set); Requirement to making and setting accuracy is high, often because construction and installation and routine maintenance problem cause reactor drum operation difficulty; Adopt circular steel design, it is big, perishable to dispel the heat, anticorrosion big with the insulation investment; Be generally the tower body form, the reactor drum floor space is little, and the tower body aspect ratio is bigger, and it is higher that sewage promotes expense; Usually adopt very high operating load, mud methanation degree is high, sets up and puts the acidifying pre-treatment, requires high to temperature, ORP, VFA and micro-control.
Therefore, need a kind of new anaerobic reaction device of design, to satisfy the needs of field of waste water treatment.
The utility model content
The utility model provides a kind of square optional internal circulating anaerobic treatment unit, and simple structure, low cost of manufacture, hydraulic loss be little, it is little to promote lift.
In order to solve the problems of the technologies described above; The utility model adopts following technical scheme: square optional internal circulating anaerobic treatment unit; Treatment unit comprises first reaction zone that connects successively from the bottom to top, following triphase separator, second reaction zone, goes up triphase separator; First reaction zone bottom is provided with water-distributing device, and water-distributing device is communicated with water inlet pipe; The top of last triphase separator is provided with discharging device; The top of last triphase separator is provided with the aqueous vapor separating tank; The top of aqueous vapor separating tank is provided with vapor pipe; The bottom of aqueous vapor separating tank is communicated with through the shore pipe of downtake with first reaction zone bottom; The top of aqueous vapor separating tank is communicated with following triphase separator through upcast, and the aqueous vapor separating tank of upcast top is provided with the biogas pipe that is communicated with last triphase separator.
Described discharging device comprises water channel and rising pipe, goes out water channel and is communicated with the top of last triphase separator in reactor drum.
Described water-distributing device comprises water distributor and water distributor and is evenly arranged in first reaction zone bottom.
The shape of described first reaction zone, time triphase separator, second reaction zone, last triphase separator is cube structure.
Described aqueous vapor separating tank is a cyclonic separator, is shaped as cylindrical structural, and aspect ratio is 1.0～1.3:1.
Described water inlet pipe is provided with variable valve, under meter and reverse checkvalve.
The xsect of described treatment unit is a rectangle, and the orthogonal long-width ratio is 1.0～1.2:1.
The height of described treatment unit is 12.0～15.0m, and height is 2.5～3.5 with the cornerwise ratio of rectangle.
Treatment unit adopts Reinforced Concrete Materials to process.
The utility model internal structure is simple, structural stability good, hydraulic loss is little, it is little to promote lift.Compared following advantage with UASB with traditional IC: simplify internal structure and system and form, control suitable operating load, reduce investment; Reduce design, construction and field engineering difficulty, reduce the difficulty of construction and installation and routine maintenance; Adopt skeleton construction, reduce anticorrosion and the insulation investment; Pond height degree is compared with traditional IC and is reduced by 30～40%, and it is little that sump pump promotes lift; Inside forms the liquid self-circulation, can suitably strengthen the mass transfer of waste water and mud, improves reaction efficiency.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the pipeline structure synoptic diagram of water inlet pipe.
Embodiment
Like Fig. 1, shown in Figure 2; Square optional internal circulating anaerobic treatment unit; Treatment unit comprise from the bottom to top first reaction zone 6 that connects successively, down triphase separator 7, second reaction zone 8, go up triphase separator 9; First reaction zone, 6 bottoms are provided with water-distributing device 5, and water-distributing device 5 is communicated with water inlet pipe 1, and water-distributing device 5 comprises water distributor and water distributor and is evenly arranged in first reaction zone, 6 bottoms.The top of last triphase separator 9 is provided with discharging device; Discharging device comprises water channel 15 and rising pipe 16, goes out water channel 15 and is communicated with the inner top of last triphase separator 9 in reactor drum.The top of last triphase separator 9 is provided with aqueous vapor separating tank 11; The top of aqueous vapor separating tank 11 is provided with vapor pipe 19; The bottom of aqueous vapor separating tank 11 is communicated with the shore pipe 18 of first reaction zone, 6 bottoms through downtake 12; The top of aqueous vapor separating tank 11 is communicated with following triphase separator 7 through upcast 10, and the aqueous vapor separating tank 11 of upcast 10 tops is provided with the biogas pipe 13 that is communicated with last triphase separator 9.Be provided with variable valve 2, under meter 4, reverse checkvalve 3, variable valve 21 on the water inlet pipe 1 successively, and whole parallel connection is provided with common pipe 20 and variable valve 22.The internal structure of reaction tank is able to simplify, and design, construction and the technical difficulty of installing reduce.
Treatment unit adopts Reinforced Concrete Materials to process, and insulation and corrosion resistance are good, can reduce the investment of insulation and antiseptic project, perhaps reduces the required working cost of heating.
The shape of first reaction zone, time triphase separator, second reaction zone, last triphase separator is cube structure.Described aqueous vapor separating tank is a cyclonic separator, is shaped as cylindrical structural, and aspect ratio is 1.0～1.3:1.The xsect of treatment unit is a rectangle, and the orthogonal long-width ratio is 1.0～1.2:1, helps sewage work and implements compact floor plan.Treatment unit is vertical column construction, highly is 12.0～15.0m, and height is 2.5～3.5 with the cornerwise ratio of rectangle.Compare with the traditional IC anaerobic reactor; Highly reduce by 30～40%, it is little that sump pump promotes lift, and inner triphase separator and inner loop pipeline system are simpler than traditional IC anaerobic reactor; The hydraulic loss of reaction tank is little, and two aspect effects can appropriateness reduce running cost.
The system for anaerobic treatment that the utility model relates to, anaerobic reation pool control suitable, (general range is 6.0～12.0kgCOD/m greater than the volumetric loading of UASB
3D); The utility model does not need to take as the traditional IC anaerobic reactor system form of " acidulated pool+IC anaerobic reactor in advance ", and whole system for anaerobic treatment mainly is made up of anaerobic reation pool; And pre-treatment or complicated pre-treating technology be not set; Because suitable load compares with UASB, the possibility of sludge loss reduces in the reactor drum simultaneously; System does not need aftertreatment technology facility (for example going out water circulation tank), auxiliary gas-liquid separation device, perhaps forces the outer circulation facility, makes the treatment system investment reduce greatly.Also because of the cancellation or the simplification of pre-treatment and reprocessing facility, the running cost of whole system for anaerobic treatment can reduce.
Only establish the two-stage reaction district on the inner height direction of the utility model pond, the bottom is first reaction zone 6, is granular mud bed district; Top is second reaction zone 8; It is flco Sludge Bed district; The top of two-layer reaction zone is provided with simple triphase separator 7 and last triphase separator 9 down, compares with the traditional IC anaerobic reactor, and the complicacy of anaerobic reaction device structure reduces greatly; The technical difficulty of reduce design, making and installing reduces construction investment.
On the following triphase separator 7 of lower reaction zone mixed solution upcast 10 is set, on pass to the aqueous vapor separating tank 11 at reaction tank top, aqueous vapor separating tank 11 bottoms are connected to downtake 12, pass to the reaction tank bottom under the downtake.Upcast 10, aqueous vapor separating tank 11 and downtake 12 form simple inner loop pipeline system, rely on the expansion and the contraction of G&W to form optional internal recycle.This circulating pipe system adopts suitable basal area, promotes than controlling lessly, and purpose is separation, the backflow of mud, avoids the loss of mud.According to the gas-liquid proportional range that feeds; Aqueous vapor separating tank 11 is a cyclonic separator, and cylindrical structural, aspect ratio are 1.0～1.3:1; Biogas on the reaction zone of top in the triphase separator 9 by biogas pipe 13 through water seal; Overflowed by aqueous vapor separating tank 11 tops, the mixed solution under the lower reaction zone in the triphase separator 7 promotes along radially tangent line entering of tank skin through multiple spot, carries out gas solid separation by eddy flow spinning principle; Liquid separation, post precipitation are back to by downtake 12 at the bottom of the pond, and biogas separates the back and overflowed by aqueous vapor separating tank 11 tops.
The design volumetric loading is suitable, and system and internal structure complicacy reduce, and pre-treatment and aftertreatment require low, are suitable for the processing of high density high yield gas organic waste water; Upcast, aqueous vapor separating tank and downtake form the inner loop pipeline system, do not utilize external force to form internal recycle, by the whirlwind-type gas water separation tank, carry out gas solid separation and backflow.
Give further explanation through an instance to the embodiment of the utility model below:
Certain factory discharges 4800 m every day
3Waste water mainly contains saccharan, protein, lipid acid, also has a certain amount of mineral acid and inorganic salt etc. in addition; Main water-quality guideline CODCr12700～23000mg/L, BOD55850～13000mg/L, SS2200～7350mg/L; PH value 2.9～12.9,30～60 ℃ of water temperatures.Waste water evenly gets into first reaction zone 6 of reaction tank, reaction tank volumetric loading 7.25kgCOD/m again through the water inlet pipe 1 entering pond inner bottom part circulation water distributor 5 of pond outer bottom
3D; Organism is handled by the microbial biochemical of first reaction zone (granule sludge district), 6 and second reaction zone (flco mud district) 8; The waste water that is processed gets into second reaction zone 8 via the following separation of triphase separator 7, is getting into triphase separator 9 after the further biochemical treatment of this reaction zone, and treating water and mud and biogas are after last triphase separator 9 separates; After compiling from pond inner top water leg 14, in go out water channel 15, rising pipe 16 is discharged.Pollutant sediment is at the bottom of the pond or by the microbiological deterioration of first reaction zone 6 and second reaction zone 8 in the waste water; Organism 90% is removed; Mud or mikrobe are able to increment simultaneously; The small cotton-shaped or empty flat granule sludge of part, with the waste water after purifying by water leg 14, go out water channel 15, water shoot 16 is discharged.
Lower reaction zone 6 is removed a large amount of COD, is produced a large amount of biogas; The mixed solution that gas and partially liq, small amount of solid are formed; Because the expansion of gas acting, rise to the aqueous vapor separating tank 11 at reaction tank top from upcast 10, the gas that spinning goes out is discharged from separating tank 11 tops; Isolated liquid and deposition of solids be in the tank body bottom, and be back to the reaction tank bottom and first reaction zone 6 from aqueous vapor separating tank 11 bottoms and downtake 12.The mixed solution of inner loop pipeline system improving, backflow can promote at the bottom of the pond and the waste water of first reaction zone 6 and mud mixing.Circulating pipe system adopts suitable basal area, promotes to control lessly than (0.25～1.0 times), recycle ratio (0.1～0.75 times), and purpose is separation, the backflow of mud, avoids the loss of mud.This circulating pipe system promotes than suitable, can make separation, the backflow of mud, avoids the loss of mud, otherwise can cause sludge loss, and external discrete, backflow facility also need be set.
Aqueous vapor separating tank 11 is a cyclonic separator, and cylindrical structural, aspect ratio are 1.0～1.3:1.Second reaction zone 8 is removed a small amount of COD, is produced a small amount of biogas, and the biogas in the last triphase separator 9 gets into aqueous vapor separating tank 11 by biogas pipe 13, is overflowed by aqueous vapor separating tank 11 tops through water seal.
The utility model has solved the problem that the traditional IC anaerobic reactor exists, and solves following such as problems such as complex structure, application charges height:
(1) the utility model will solve the problem of traditional IC anaerobic reactor sludge loss.The very high volumetric loading of the general employing of traditional IC anaerobic reactor, design loading is generally 20.0～40.0kgCOD/m
3D, load are 5 to 10 times of traditional UASB reactor drum, and high load adds that the tower body base area is little, make that the void tower flow velocity of reactor drum is very high, and flow velocity makes the mud of Sludge Bed run off easily often up to 2～6m/h.And reactor drum adopts very high volumetric loading, and the mikrobe unit weight factor of created gase of Sludge Bed is high, and mud granule cracking degree is high, and fine or cotton-shaped proportion is high in the Sludge Bed, and this part mud is easy to run off under conditions of high flow rate.
(2) the utility model will solve the problem of traditional IC anaerobic reactor complex structure.For avoiding the loss of mud under conditions of high flow rate, it is complicated that system for anaerobic treatment is formed and the inside reactor structure becomes.The triphase separator of first reaction zone is provided with complicated collecting methane and discharge assembly, is provided with the solid mixed solution discharge of gas-liquid assembly, does not allow high velocity air and mixed solution to get into second reaction zone, and the fluidised form of control reaction tank is avoided sludge loss.And when flow velocity too high; These devices can not make particle and flco mud separate, when refluxing; Complicated intraware just is a cover passage, also needs avoid sludge loss at pump circulation facilities such as reactor drum outer setting outlet pipeline, methane pipeline even mixed solution pipelines.
(3) the traditional IC anaerobic reactor generally adopts circular steel design, and the conjuncted compact Layout of same unit facility when being unfavorable for sewage work's floor plan is unfavorable for different processing units facility coordination layout.Owing to adopt the wall of reactor of steel design, metal material; On the one hand the reactor drum heat-insulating property is poor, heat radiation is big, makes reactor drum need do thermal insulation layer, or keeps temperature of reactor and need consume more heat; The reactor drum of plain carbon stool material on the other hand; Receive the solid dielectric corrosion of gas-liquid in the reactor drum easily, if adopt stainless steel, construction investment then improves greatly.And the reaction tank that adopts concrete structure can solve insulation and anticorrosion problem.
(4) the traditional IC anaerobic reactor adopts the turriform structure, and height for reactor is generally than higher, and is most greater than 20m, and the water pump lifting lift exceeds 30～50% than general UASB (height by less than 12m), and it is higher that sewage promotes expense, and running cost is high.Owing to adopt very short hydraulic detention time (very high load), the reactor drum water inlet often needs preparatory acidification.From anaerobic metabolism multistage theories, anaerobic biochemical reaction course; For satisfying the high rate of decomposition of least significant end (product methanation); For the metabolic reaction of mikrobe is created the optimum balance condition, treatment system is to the control requirement of temperature, pH (or ORP), VFA concentration and micronutrient element dosage, and is higher than the pre-treatment requirement of general UASB; Cause the anaerobic treatment construction investment to increase, or system for anaerobic treatment running cost increase.
Claims (9)
1. square optional internal circulating anaerobic treatment unit; It is characterized in that: treatment unit comprises first reaction zone that connects successively from the bottom to top, following triphase separator, second reaction zone, goes up triphase separator; First reaction zone bottom is provided with water-distributing device, and water-distributing device is communicated with water inlet pipe; The top of last triphase separator is provided with discharging device; The top of last triphase separator is provided with the aqueous vapor separating tank; The top of aqueous vapor separating tank is provided with vapor pipe; The bottom of aqueous vapor separating tank is communicated with through the shore pipe of downtake with first reaction zone bottom; The top of aqueous vapor separating tank is communicated with following triphase separator through upcast, and the aqueous vapor separating tank of upcast top is provided with the biogas pipe that is communicated with last triphase separator.
2. square optional internal circulating anaerobic treatment unit according to claim 1, it is characterized in that: described discharging device comprises water channel and rising pipe, goes out water channel and is communicated with the top of last triphase separator in reactor drum.
3. square optional internal circulating anaerobic treatment unit according to claim 2 is characterized in that: described water-distributing device comprises water distributor and water distributor and is evenly arranged in first reaction zone bottom.
4. according to each described square optional internal circulating anaerobic treatment unit of claim 1-3, it is characterized in that: the shape of described first reaction zone, time triphase separator, second reaction zone, last triphase separator is cube structure.
5. square optional internal circulating anaerobic treatment unit according to claim 4, it is characterized in that: described aqueous vapor separating tank is a cyclonic separator, is shaped as cylindrical structural, aspect ratio is 1.0～1.3:1.
6. square optional internal circulating anaerobic treatment unit according to claim 5, it is characterized in that: described water inlet pipe is provided with variable valve, under meter and reverse checkvalve.
7. square optional internal circulating anaerobic treatment unit according to claim 6, it is characterized in that: the xsect of described treatment unit is a rectangle, the orthogonal long-width ratio is 1.0～1.2:1.
8. square optional internal circulating anaerobic treatment unit according to claim 7, it is characterized in that: the height of described treatment unit is 12.0～15.0m, height is 2.5～3.5 with the cornerwise ratio of rectangle.
9. square optional internal circulating anaerobic treatment unit according to claim 8 is characterized in that: treatment unit adopts Reinforced Concrete Materials to process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203680121U CN202246248U (en) | 2011-09-29 | 2011-09-29 | Square non-forcing inner circulating anaerobic treatment device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203680121U CN202246248U (en) | 2011-09-29 | 2011-09-29 | Square non-forcing inner circulating anaerobic treatment device |
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| CN202246248U true CN202246248U (en) | 2012-05-30 |
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| CN2011203680121U Expired - Fee Related CN202246248U (en) | 2011-09-29 | 2011-09-29 | Square non-forcing inner circulating anaerobic treatment device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106396095A (en) * | 2016-10-18 | 2017-02-15 | 胡明成 | Anaerobic internal circulation reactor |
| CN108455727A (en) * | 2018-04-11 | 2018-08-28 | 浙江大学 | Enhance the internal-circulation anaerobic reactor of granular sludge |
-
2011
- 2011-09-29 CN CN2011203680121U patent/CN202246248U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106396095A (en) * | 2016-10-18 | 2017-02-15 | 胡明成 | Anaerobic internal circulation reactor |
| CN108455727A (en) * | 2018-04-11 | 2018-08-28 | 浙江大学 | Enhance the internal-circulation anaerobic reactor of granular sludge |
| CN108455727B (en) * | 2018-04-11 | 2023-05-09 | 浙江大学 | Internal circulation anaerobic reactor for enhancing sludge granulation |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20140929 |
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| EXPY | Termination of patent right or utility model |