CN111792728B - Anaerobic three-phase separator and manufacturing method thereof - Google Patents
Anaerobic three-phase separator and manufacturing method thereof Download PDFInfo
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- CN111792728B CN111792728B CN202010643959.2A CN202010643959A CN111792728B CN 111792728 B CN111792728 B CN 111792728B CN 202010643959 A CN202010643959 A CN 202010643959A CN 111792728 B CN111792728 B CN 111792728B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 30
- 238000003466 welding Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 8
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims 1
- 229920005372 Plexiglas® Polymers 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 33
- 238000004364 calculation method Methods 0.000 abstract description 10
- 239000010802 sludge Substances 0.000 description 20
- 238000005520 cutting process Methods 0.000 description 18
- 238000010992 reflux Methods 0.000 description 16
- 238000004062 sedimentation Methods 0.000 description 15
- 230000008569 process Effects 0.000 description 8
- 238000000926 separation method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 239000010865 sewage Substances 0.000 description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 238000005191 phase separation Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 230000029087 digestion Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000002503 metabolic effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
- C02F3/2866—Particular arrangements for anaerobic reactors
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
- C02F3/2846—Anaerobic digestion processes using upflow anaerobic sludge blanket [UASB] reactors
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
- C02F3/2866—Particular arrangements for anaerobic reactors
- C02F3/2873—Particular arrangements for anaerobic reactors with internal draft tube circulation
-
- 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
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention relates to an anaerobic three-phase separator and a manufacturing method thereof, wherein the three-phase separator comprises a first module, a second module, a third module, a fourth module and a fixing frame, wherein the tops of the first module, the second module and the third module are respectively connected with an air duct; the first module comprises a conical cylinder body, the second module comprises a round table II and a round table I which is inverted in the round table II, and the bottom of the round table I is connected with the top of the round table II; the third module comprises a round table IV and a round table III which is inverted in the round table IV, and the bottom of the round table III is connected with the top of the round table IV; the fourth module comprises an inverted round table five; the second module bottom is fixed in the mount top, and the third module top is fixed in the mount below and is located second module outer loop side, and the mount is fixed at five tops of round platform all around, and the top of first module is fixed at the center of mount and interval arrangement in three of round platform, and during fixed mounting, each module is coaxial. The modular design and manufacture of each module meets the design requirement of the anaerobic reactor, and avoids a great deal of complicated design calculation.
Description
Technical Field
The invention relates to the technical field of anaerobic digestion, in particular to an anaerobic three-phase separator and a manufacturing method thereof.
Background
The anaerobic digestion process is characterized in that under the condition of isolating oxygen, organic pollutants are utilized by anaerobic microorganisms as metabolic substrates, methane and carbon dioxide are generated while the pollutants are degraded, and the anaerobic process is adopted to treat the organic wastewater, so that the anaerobic digestion process has dual benefits of energy and environmental protection, and since the last 70 th, the second-generation high-efficiency anaerobic reactor represented by UASB (anaerobic sludge bed) is widely applied to the field of industrial and agricultural high-concentration organic wastewater treatment, and has wide application prospect.
In order to examine the feasibility of anaerobic treatment of wastewater by second-generation and third-generation high-efficiency anaerobic reactors such as UASB (Upflow Anerobic Sludge Bed, upflow anaerobic sludge blanket) reactors, EGSB (Expanded Granular Sludge Bed, expanded granular sludge blanket) reactors, IC (Internal Circulation ) reactors and the like, the treatment load and the treatment capacity are evaluated, and a simulation test is carried out by using a small-sized reactor, so that the method is a mode frequently adopted by industrial technicians. The three-phase separator is used as a core component of the reactor equipment, plays a role in separating three phases of granular sludge (solid), anaerobic digestion liquid (liquid) and methane (gas) in the reactor, the separation effect of the three-phase separator directly determines the efficiency of the anaerobic reactor, and the simulated test conditions are similar to or better than the actual running conditions as far as possible.
The three-phase separator currently applied to engineering is mostly based on a strip-type multi-layer structure. For the square reactor, the long-strip three-phase separator is simple in design and installation, and the reflux joint area is large, so that the design requirement can be met; however, in the square reactor, uniform hydraulic conditions are difficult to control, dead angles are easy to exist, the effective volume is small, and the efficiency of the reactor is generally low; the circular (tower) reactor can avoid the problem that the hydraulic conditions of the square reactor are difficult to control, but if the three-phase separator adopts a strip type design, the design and calculation are complex and complicated, and the design of the bracket or the blind plate can occupy the area of a backflow seam. The UASB reactor for test is more difficult to design and manufacture due to small size, and the design of the three-phase separator is strip-shaped, so that on one hand, the size is too small, the dimensional accuracy, the installation accuracy and the horizontal accuracy of the three-phase separator module are difficult to ensure when the three-phase separator module is manufactured, and the problems of air leakage, low separation efficiency and the like are easy to occur when the three-phase separator module is actually operated, so that the UASB reactor has no operability. Under more conditions, when manufacturing the UASB reactor, industry technicians only use a simple back-off funnel as a three-phase separator, although the separation effect can be achieved, the back-off seam area of the three-phase separator is small, the back-off seam area of the three-phase separator is generally designed to occupy 15% -25% of the area of the sedimentation area, the back-off seam area of the back-off funnel-shaped three-phase separator 800 (shown in fig. 10) only occupies about 14% of the total area of the sedimentation area, on one hand, the improvement of hydraulic load is greatly limited, and the solid, liquid and gas three-phase separation efficiency is also affected, so that the test result presents negative deviation, and the guiding significance on actual engineering design is greatly reduced.
Disclosure of Invention
The invention aims to solve the technical problem of the prior art and provides an anaerobic three-phase separator and a manufacturing method thereof.
The technical scheme for solving the technical problems is as follows: an anaerobic three-phase separator comprises a first module, a second module, a third module, a fourth module and a fixing frame, wherein the tops of the first module, the second module and the third module are respectively connected with an air duct; the first module comprises a conical cylinder body, the second module comprises a round table II and a round table I which is inverted in the round table II, and the bottom of the round table I is connected with the top of the round table II; the third module comprises a round table IV and a round table III which is inverted in the round table IV, and the bottom of the round table III is connected with the top of the round table IV; the fourth module comprises an inverted round platform five; the bottom of the second module is fixed above the fixing frame, the top of the third module is fixed below the fixing frame and is positioned on the outer ring side of the second module, the periphery of the fixing frame is fixed on the five tops of the round tables, and the tops of the conical cylinder bodies are fixed at the central position of the fixing frame and are arranged in the three round tables at intervals; the conical cylinder body, the round table I, the round table II, the round table III, the round table IV and the round table V are coaxially arranged, and the cone angles are 60 degrees; the length of a bus of the round table I, the round table II, the round table III and the round table IV is L, the length of a bus of the round table V is 2L, the diameter of the bottom of the round table IV is 4L, the diameter of the bottom of the round table II is 2.5L, the diameter of the bottom of the round table V is 5.5L, and the diameter of the bottom of the conical cylinder body is L.
The beneficial effects of the invention are as follows: according to the anaerobic three-phase separator, all the sizes of the three-phase separator of the UASB reactor can be determined by only determining the reflux inclined plane length L of the three-phase separator, and the design requirement of the anaerobic reactor can be met after determining the size of a sedimentation zone and the height H of the reactor according to parameters such as design load and the like, so that a great deal of complicated design calculation is avoided. According to the scheme of the three-phase separator, the area of the reflux joint accounts for 24% of the total area of the sedimentation zone, so that the three-phase separator meets the industrial design requirement of 15% -25%, and is improved by 70.08% compared with the scheme commonly adopted by technical staff in the industry. The three-phase separator manufacturing mode disclosed by the patent not only can be used in a UASB reactor, but also can be used in application scenes such as EGSB, IC and the like containing three-phase separation devices.
On the basis of the technical scheme, the invention can be improved as follows.
Further, the included angles between the generatrix of the conical cylinder body, the round table I, the round table II, the round table III, the round table IV and the round table V and the bottom surface are all 60 degrees.
The beneficial effects of adopting the further scheme are as follows: the 60-degree angle design is adopted, so that the calculation design is convenient, and the manufacture is more convenient.
Further, the fixing frame is of a crisscross structure, a central hole is formed in the central intersection of the fixing frame, and the air duct on the conical cylinder body penetrates through the central hole and is fixed with the fixing frame.
Further, the first bottom of the round table is the same as the second top of the round table in size, and the third bottom of the round table is the same as the fourth top of the round table in size.
Further, the bottom of the first round table and the top of the second round table are sealed through full welding or bonding, and the bottom of the third round table and the top of the fourth round table are sealed through full welding or bonding.
Further, the periphery of the fixing frame is fixed at the top of the round table five through full welding or bonding.
Further, the first module, the second module, the third module, the fourth module and the fixing frame are made of the same material, and one of PVC, PP, organic glass and stainless steel is adopted.
The manufacturing method of the anaerobic three-phase separator comprises the following steps:
S1, taking two right circular cone cylinders, namely a right circular cone cylinder A and a right circular cone cylinder B, wherein the cone angles of the right circular cone cylinder A and the right circular cone cylinder B are 60 degrees, the diameter of the bottom surface of the right circular cone cylinder A is 4L, and the diameter of the bottom surface of the right circular cone cylinder B is 5.5L;
S2, cutting the right circular cone barrel A: starting from the top of the right circular cone A, cutting a circular cone with a bus length L as a first module; starting from any point of the bottom edge of the right cone A, measuring a length L along a bus line of the right cone A, cutting the right cone A parallel to the bottom surface of the right cone A to obtain a second round table, and continuously measuring the length L along the bus line of the right cone A, and cutting the right cone A parallel to the bottom surface of the right cone A to obtain a first round table;
S3, cutting the right circular cone B: starting from any point at the bottom edge of the right cone B, measuring a length 2L along a bus line of the right cone B, and cutting the right cone B parallel to the bottom surface of the right cone B to obtain a round bench five; starting from the bottom surface of the right cone cylinder B with the diameter of 2.5L, measuring the length L of the bus along the bus direction of the right cone cylinder B to obtain a round bench IV by cutting the right cone cylinder B parallel to the bottom surface of the right cone cylinder B, and continuously measuring the length L of the right cone cylinder B along the bus direction of the right cone cylinder B to obtain a round bench III by cutting the right cone cylinder B parallel to the bottom surface of the right cone cylinder B;
s4, manufacturing a second module: the first round table is inverted in the second round table, and the edges of the first round table and the second round table with the same size are connected;
S5, manufacturing a third module, inversely arranging the round table III in the round table IV, and connecting edges of the round table III and the round table IV in the same size;
S6, fixing the top of the first module below the center of the fixing frame, connecting the bottom of the third module with the top of the fixing frame, connecting the top of the second module with the bottom of the fixing frame, and fixing the periphery of the fixing frame on the top of the inverted round table five, so that the first module, the second module, the third module and the fourth module are coaxially arranged with the round table five;
S7, respectively forming through holes at the tops of the first module, the second module, the third module and the fourth module, and sealing and connecting the air guide pipes in the through holes.
The beneficial effects of the invention are as follows: according to the anaerobic three-phase separator, all the sizes of the three-phase separator of the UASB reactor can be determined by only determining the reflux inclined plane length L of the three-phase separator, and the design requirement of the anaerobic reactor can be met after determining the size of a sedimentation zone and the height H of the reactor according to parameters such as design load and the like, so that a great deal of complicated design calculation is avoided. According to the invention, the three-phase separator assembly is cut by using the formed cone barrel and welded to manufacture the three-phase separator, so that the precision of the assembly can be ensured under the condition of small size of test equipment, the operability is high, the mass production can be realized more easily, and the materials can be saved more. According to the scheme of the three-phase separator, the area of the reflux joint accounts for 24% of the total area of the sedimentation zone, so that the three-phase separator meets the industrial design requirement of 15% -25%, and is improved by 70.08% compared with the scheme commonly adopted by technical staff in the industry. The three-phase separator manufacturing mode disclosed by the patent not only can be used in a UASB reactor, but also can be used in application scenes such as EGSB, IC and the like containing three-phase separation devices.
Further, the bottom of the first round table and the top of the second round table are sealed through full welding or bonding, and the bottom of the third round table and the top of the fourth round table are sealed through full welding or bonding.
Further, the fixing frame is of a crisscross structure, a central hole is formed in the central intersection of the fixing frame, and the air duct on the conical cylinder body penetrates through the central hole and is fixed with the fixing frame.
Drawings
FIG. 1 is a schematic view of the cutting process of a right circular cone A according to the present invention;
FIG. 2 is a schematic diagram illustrating an assembling process of a second module according to the present invention;
FIG. 3 is a schematic view of the cutting process of the right circular cone B;
FIG. 4 is a schematic diagram illustrating an assembling process of a third module according to the present invention;
FIG. 5 is a schematic diagram of an assembly process of a three-phase separator according to the present invention;
FIG. 6 is a schematic diagram of a second process for assembling a three-phase separator according to the present invention;
FIG. 7 is a schematic view of the three-phase separator of the present invention after assembly;
FIG. 8 is a schematic diagram of the assembled state of the three-phase separator of the present invention;
FIG. 9 is a schematic diagram of the separation process of the three-phase separator of the present invention;
FIG. 10 is a schematic diagram showing an assembled state of the inverted funnel-shaped three-phase separator.
In the drawings, the list of components represented by the various numbers is as follows:
1. a first module;
2. a second module; 21. round bench I; 22. round bench II;
3. a third module; 31. round bench III; 32. round bench IV;
4. A fourth module; 5. a fixing frame;
100. A three-phase separator; 101. a separator swash plate; 200. a precipitation zone; 300. a reactor body; 400. a reactor base; 500. an air duct; 600. a right circular cone barrel A; 700. a right circular cone B; 800. a back-off funnel type three-phase separator.
Detailed Description
The principles and features of the present invention are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention.
Example 1
As shown in fig. 1 to 9, an anaerobic three-phase separator of the present embodiment includes a first module 1, a second module 2, a third module 3, a fourth module 4 and a fixing frame 5, wherein the top parts of the first module 1, the second module 2 and the third module 3 are respectively connected with an air duct 500, and the contact part of the air duct 200 and each module is sealed and airtight; the first module 1 comprises a conical cylinder, the second module 2 comprises a round table II 22 and a round table I21 which is inversely arranged in the round table II 22, and the bottom of the round table I21 is connected with the top of the round table II 22; the third module 3 comprises a round platform IV 32 and a round platform III 31 which is inversely arranged in the round platform IV 32, and the bottom of the round platform III 31 is connected with the top of the round platform IV 32; the fourth module 4 comprises an inverted round platform five; the bottom of the second module 2 is fixed above the fixed frame 5, the top of the third module 3 is fixed below the fixed frame 5 and is positioned on the outer ring side of the second module 2, the periphery of the fixed frame 5 is fixed on the five tops of the round tables, and the top of the conical cylinder body is fixed at the central position of the fixed frame 5 and is arranged in the three round tables 31 at intervals; the cone cylinder body, the first round platform 21, the second round platform 22, the third round platform 31, the fourth round platform 32 and the fifth round platform are coaxially arranged, and the cone angles are 60 degrees (the cone angles of the cones where the cone cylinder body, the third round platform 21, the fourth round platform 32 and the fifth round platform are identical); the bus length of the round bench one 21, the round bench two 22, the round bench three 31 and the round bench four 32 is L (namely the separation inclined plane of the three-phase separator 100 is L), the bus length of the round bench five is 2L, the bottom diameter of the round bench four 32 is 4L, the bottom diameter of the round bench two 22 is 2.5L, the bottom diameter of the round bench five is 5.5L, and the bottom diameter of the conical cylinder body is L. Wherein, the fourth module 4 also serves as a cylinder of the UASB reactor.
According to the anaerobic three-phase separator, all the sizes of the three-phase separator of the UASB reactor can be determined only by determining the length L of the reflux inclined plane of the three-phase separator, and the design requirement of the anaerobic reactor can be met after determining the size of the sedimentation zone and the height H of the reactor according to parameters such as design load and the like, so that a great deal of complicated design calculation is avoided. According to the scheme of the three-phase separator, the area of the reflux joint accounts for 24% of the total area of the sedimentation zone, so that the three-phase separator meets the industrial design requirement of 15% -25%, and is improved by 70.08% compared with the scheme commonly adopted by technical staff in the industry. The manufacturing mode of the three-phase separator disclosed by the embodiment can be used in UASB reactors and also can be used in application scenes such as EGSB, IC and the like containing three-phase separation devices.
The specific scheme of the embodiment is that the included angles between the generatrix and the bottom surface of the conical cylinder body, the round platform one 21, the round platform two 22, the round platform three 31, the round platform four 32 and the round platform five are 60 degrees, and the design specification requirements of 55-60 degrees are met. The 60-degree angle design is adopted, so that the calculation design is convenient, and the manufacture is more convenient.
As shown in fig. 5, in an alternative embodiment, the fixing frame 5 is in a crisscross structure, a central hole is formed at a central intersection of the fixing frame 5, and the air duct on the conical cylinder body passes through the central hole and is fixed with the fixing frame. The fixing frame 5 comprises two fixing rods which are welded perpendicularly to each other, the length of each fixing rod is 5.5L, the section shape of each fixing rod can be square or round, the side length or diameter of the section is about 1/8L-1/4L, and the material of each fixing rod is the same as that of the three-phase separator module. The central hole of the fixing rod can be perforated, and the air duct of the first module passes through the central hole of the fixing rod and is welded or bonded and sealed firmly.
Specifically, as shown in fig. 1 to 4, the bottom dimension of the first round table 21 and the top dimension of the second round table 22 are the same, and the bottom dimension of the third round table 31 and the top dimension of the fourth round table 32 are the same.
Specifically, the bottom of the first round table 21 and the top of the second round table 22 are sealed through full welding or bonding, and the bottom of the third round table 31 and the top of the fourth round table 32 are sealed through full welding or bonding, so that the second module 2 and the third module 3 are ensured to be airtight in the use process. The periphery of the fixing frame 5 is fixed at the top of the round table five through full welding or bonding.
Specifically, the materials of the first module 1, the second module 2, the third module 3, the fourth module 4 and the fixing frame 5 are the same, and one of PVC, PP, organic glass and stainless steel is adopted.
Example 2
The method for manufacturing the anaerobic three-phase separator is shown in fig. 1-9, and comprises the following steps:
S1, taking two right circular cone cylinders, namely a right circular cone cylinder A600 and a right circular cone cylinder B700, wherein the cone angles of the right circular cone cylinder A600 and the right circular cone cylinder B700 are 60 degrees, the diameter of the bottom surface of the right circular cone cylinder A600 is 4L, and the diameter of the bottom surface of the right circular cone cylinder B700 is 5.5L;
S2, cutting the right circular cone barrel A600: starting from the top of the right circular cone A600, cutting a circular cone with a bus length L as a first module 1; starting from any point at the bottom edge of the right cone A600, cutting along the bus line to obtain a second round table 22 parallel to the bottom surface of the right cone A600, and continuously cutting along the bus line to obtain a first round table 21 parallel to the bottom surface of the right cone A600;
S3, cutting the right circular cone B700: starting from any point at the bottom edge of the right cone B700, measuring a length 2L along a bus line of the right cone B, and cutting the right cone B parallel to the bottom surface of the right cone B to obtain a fifth round table; starting from the bottom surface of the right cone B700 with the diameter of 2.5L, measuring the length L of the bus along the bus direction of the right cone B to obtain a round bench IV 32 by cutting the right cone B parallel to the bottom surface of the right cone B, and continuously measuring the length L along the bus along the direction of the bus to obtain a round bench III 31 by cutting the right cone B parallel to the bottom surface of the right cone B;
s4, manufacturing a second module 2: the first round table 21 is inverted in the second round table 22, and edges with the same size of the first round table 21 and the second round table 22 are connected;
S5, manufacturing a third module 3, inversely arranging the round table III 31 in the round table IV 32, and connecting edges with the same size of the round table III 31 and the round table IV 32;
S6, fixing the top of the first module 1 below the central position of the fixing frame 5, connecting the bottom of the third module 3 with the top of the fixing frame 5, connecting the top of the second module 2 with the bottom of the fixing frame 5, and fixing the periphery of the fixing frame 5 on the top of the inverted round table five, so that the first module 1, the second module 2, the third module 3 and the fourth module 4 are coaxially arranged with the round table five;
s7, through holes are respectively formed in the tops of the first module 1, the second module 2, the third module 3 and the fourth module 4, and the air duct 500 is connected in the through holes in a sealing mode.
According to the manufacturing method of the anaerobic three-phase separator, all the sizes of the three-phase separator of the UASB reactor can be determined by only determining the length L of the reflux inclined plane of the three-phase separator, and the design requirement of the anaerobic reactor can be met after determining the size of the sedimentation zone and the height H of the reactor according to parameters such as design load and the like, so that a great deal of complicated design calculation is avoided. According to the embodiment, the three-phase separator assembly is cut out by using the formed cone barrel and welded to manufacture the three-phase separator, so that the accuracy of the assembly can be guaranteed under the condition that the size of test equipment is small, the operability is high, mass production is easy to realize, and materials are saved. According to the scheme of the three-phase separator, the area of the reflux joint accounts for 24% of the total area of the sedimentation zone, so that the three-phase separator meets the industrial design requirement of 15% -25%, and is improved by 70.08% compared with the scheme commonly adopted by technical staff in the industry. The three-phase separator manufacturing mode disclosed by the patent not only can be used in a UASB reactor, but also can be used in application scenes such as EGSB, IC and the like containing three-phase separation devices.
The bottom of the first round table 21 and the top of the second round table 22 are sealed through full welding or bonding, and the bottom of the third round table 31 and the top of the fourth round table 32 are sealed through full welding or bonding.
Specifically, the included angle between the generatrix of the conical cylinder body, the first round table 21, the second round table 22, the third round table 31, the fourth round table 32 and the fifth round table and the bottom surface is 60 degrees; the fixing frame 5 is of a crisscross structure, a central hole is formed in the central intersection of the fixing frame 5, and the air duct 500 on the conical cylinder body penetrates through the central hole and is fixed with the fixing frame 5.
According to the three-phase separator and the manufacturing method thereof, the length of a reflux inclined plane of the separator inclined plate 101 of the three-phase separator is L, the reflux angle is 60 degrees, and the reflux parameters are as follows:
1) The diameter of the sedimentation zone is 5.5L, and the area of the sedimentation zone is as follows: pi× (5.5L/2) 2＝7.56πL2
2) The area of the reflux joint of the outermost ring is as follows: pi (2.25L) 2-π(2L)2＝1.0625πL2
3) The area of the middle backflow seam is as follows: pi (1.5L) 2-π(1.25L)2＝0.6875πL2
4) The area of the central backflow seam is as follows: pi (0.25L) 2＝0.0625πL2
The above calculation results in a total area of the return seam = (1.0625+0.6875+0.0625) pi L 2＝1.8125πL2.
The three-phase separator disclosed by the patent of the invention has a reflux seam accounting for 1.8125 pi L 2÷7.56πL2 =23.97% -24% of the area of a sedimentation zone, and a reverse-buckling funnel type three-phase separator commonly adopted by industry technicians has a reflux seam accounting for 1.0625 pi L 2÷7.56πL2 =14.05% of the area of the sedimentation zone.
Through the verification calculation, the three-phase separator scheme disclosed by the patent has the advantages that the reflux joint area accounts for 24% of the total area of the sedimentation zone, meets the industrial design requirement of 15% -25%, and is improved by 70.08% compared with the scheme commonly adopted by industrial technicians. The three-phase separator manufacturing mode disclosed by the patent not only can be used in a UASB reactor, but also can be used in application scenes such as EGSB, IC and the like containing three-phase separation devices.
The principle of the separation process of the three-phase separator is as follows: in the anaerobic reactor, sewage, granular sludge and biogas generated by decomposing pollutants by the granular sludge exist in a reaction zone, and biogas bubbles may adhere to the surface of the granular sludge because the biogas is generated inside the granular sludge, so that sewage treatment is continuously performed, and it is required that: 1) The treated water can be discharged in time; 2) Biogas is separated from the surface of the granular sludge and collected intensively, and cannot be discharged along with the treated water, so that danger is avoided; 3) The granular sludge must remain in the reactor in order to continue to treat the sewage with microorganisms. The purpose of the three-phase separator is to realize the separation of sewage, sludge and methane.
As shown in fig. 9, the three-phase separator of the present invention has the following separation process:
State 1: biogas bubbles generated by granular sludge in the reactor are attached to the surface to reduce the density of the biogas bubbles, and the biogas bubbles continuously rise under the buoyancy of water;
State 2: when the granular sludge attached with biogas bubbles rises to the sloping plate of the three-phase separator and collides with the sloping plate, the bubbles fall off from the surface of the granular sludge, continuously rise into the air chamber of the three-phase separator and are led out of the system through the air duct;
State 3: the density of the granular sludge separated from the biogas bubbles is increased, and the granular sludge falls back to the reaction zone under the action of gravity to continue the reaction.
The sewage enters the settling zone of the three-phase separator through a gap between the three-phase separators, and partial granular sludge is entrained in the sewage, so that the granular sludge returns to the system along the inclined plate of the three-phase separator under the action of gravity in the settling zone, and the sewage is discharged out of the system through a drainage pipeline.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
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