CN116395815B - Sewage treatment method based on desulfurization and denitrification - Google Patents
Sewage treatment method based on desulfurization and denitrification Download PDFInfo
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- CN116395815B CN116395815B CN202310653771.XA CN202310653771A CN116395815B CN 116395815 B CN116395815 B CN 116395815B CN 202310653771 A CN202310653771 A CN 202310653771A CN 116395815 B CN116395815 B CN 116395815B
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- sewage
- tank body
- inner cylinder
- desulfurization
- denitrification
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- 239000010865 sewage Substances 0.000 title claims abstract description 115
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 22
- 230000023556 desulfurization Effects 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000003814 drug Substances 0.000 claims abstract description 104
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000000084 colloidal system Substances 0.000 claims abstract description 8
- 230000005540 biological transmission Effects 0.000 claims description 41
- 238000003756 stirring Methods 0.000 claims description 38
- 230000007246 mechanism Effects 0.000 claims description 27
- 239000007788 liquid Substances 0.000 claims description 23
- 238000007789 sealing Methods 0.000 claims description 17
- 238000004062 sedimentation Methods 0.000 claims description 13
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 6
- 230000001376 precipitating effect Effects 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 239000010802 sludge Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 13
- 238000007599 discharging Methods 0.000 description 10
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 6
- 235000017491 Bambusa tulda Nutrition 0.000 description 6
- 241001330002 Bambuseae Species 0.000 description 6
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 6
- 239000011425 bamboo Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 229940079593 drug Drugs 0.000 description 4
- 239000008394 flocculating agent Substances 0.000 description 4
- 238000005189 flocculation Methods 0.000 description 3
- 230000016615 flocculation Effects 0.000 description 3
- 210000001503 joint Anatomy 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 230000003311 flocculating effect Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/90—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5227—Processes for facilitating the dissolution of solid flocculants in water
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/18—Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The application discloses a sewage treatment method based on desulfurization and denitrification, which relates to the field of sewage treatment and comprises the following steps: s1, dosing, namely firstly adding a medicament into sewage of a mixing device, wherein the dosage of the medicament is controlled by the flow rate of the sewage, and the sewage in the mixing device is the sewage after desulfurization and denitrification treatment. S2, mixing, namely uniformly mixing the sewage passing through the inside of the mixing device with the medicament by using the mixing device, so that the medicament is hydrolyzed after being put into the sewage, and heterocharge colloid is produced to be contacted with the colloid in water and suspended matters to form fine floccules, wherein the mixing device comprises a tank body, one side of the top of the tank body is provided with an inflow pipe, and the bottom of one side of the tank body is provided with an outflow pipe; the sewage treatment method based on desulfurization and denitrification realizes the effect of automatically changing the dosing amount along with the sewage flow, and also realizes the effects of circularly dosing and mixing sewage and ensuring that all sewage passing through the tank body can be uniformly mixed with the medicament.
Description
Technical Field
The application relates to a sewage treatment technology, in particular to a sewage treatment method based on desulfurization and denitrification.
Background
The desulfurization and denitrification sewage is sewage treated by desulfurization and denitrification, and main pollutants in the sewage are suspended matters, heavy metal ions and the like, so that the sewage needs to be treated before the desulfurization and denitrification high-turbidity sewage is discharged.
The existing sewage is usually added with flocculating agents during treatment, fine particles and natural colloidal particles in the water are coagulated into large floccules and then are precipitated, however, the uniformity of the flocculating agents in the sewage is difficult to ensure due to the fact that the flocculating agents are added into flowing sewage, and further the flocculating precipitation effect on the sewage is difficult to ensure.
Disclosure of Invention
The application aims to provide a sewage treatment method based on desulfurization and denitrification, which aims to solve the defects in the prior art.
In order to achieve the above object, the present application provides the following technical solutions: a sewage treatment method based on desulfurization and denitrification comprises the following steps:
s1, dosing, namely firstly, dosing a medicament into sewage of a mixing device, wherein the dosage of the medicament is controlled by the flow rate of the sewage, and the sewage in the mixing device is the sewage after desulfurization and denitrification treatment;
s2, mixing, namely uniformly mixing the sewage passing through the interior of the mixing equipment with the medicament, so that the medicament is hydrolyzed after being put into the sewage, and heterocharge colloid is generated to contact with colloid and suspended matters in water to form fine floccules;
s3, reacting, namely enabling the sewage which forms fine floccules through the mixing equipment to flow into the reaction equipment to gradually flocculate the small floccules into large floccules, wherein the stirring strength of the reaction equipment along the water inflow direction is smaller and smaller, so that the small floccules can collide with each other and the produced large floccules are prevented from precipitating;
s4, sedimentation, wherein the sewage obtained in the step S3 flows into a sedimentation tank to carry out mud-water separation;
s5, cleaning, namely cleaning suspended matters in the sedimentation tank and sludge at the bottom of the sedimentation tank.
Further, the mixing device comprises a tank body, wherein an inflow pipe is arranged on one side of the top of the tank body, and an outflow pipe is arranged at the bottom of one side of the tank body;
the medicine feeding mechanism comprises a medicine storage tank arranged at the top of the tank body, a rotary table arranged below the medicine storage tank, a plurality of medicine guide grooves arranged in the rotary table and a power assembly for driving the rotary table to rotate;
the inner cylinder is arranged on the inner wall of the bottom of the tank body, the bottom of one side of the inner cylinder is provided with a diversion trench, and a sealing structure is arranged between the inner cylinder and the outflow pipe and used for driving the inner cylinder to rotate and sealing the diversion trench;
the stirring mechanism is arranged on the tank body and is used for stirring sewage in the inner cylinder;
and the auxiliary mechanism is arranged in the tank body and is used for accelerating the flow speed of the liquid outside the inner cylinder.
Further, the bottom of medicine storage jar is installed and is led the medicine pipe, the ring channel has been seted up to the outside of carousel, the ring channel is linked together with a plurality of medicine grooves respectively, the bottom of leading the medicine pipe extends to the inside of ring channel and with ring channel looks adaptation.
Further, the power component comprises a transmission shaft fixedly connected to the axis of the turntable, an impeller fixedly sleeved outside the transmission shaft and a ratchet wheel arranged outside the transmission shaft, the other end of the transmission shaft is rotationally connected to the inner wall of the tank body, the ratchet wheel is connected with the inner wall of the tank body and used for enabling the transmission shaft to rotate unidirectionally, one end of the inflow pipe positioned inside the tank body is positioned above the impeller and matched with the impeller, and the plurality of medicine guide grooves are distributed in an annular array with the transmission shaft as the center.
Further, the sealing structure comprises a driven shaft, a first gear and an outer gear, wherein the driven shaft is connected to the inner wall of the tank body in a rotating mode in the height direction of the tank body, the first gear is fixedly sleeved outside the driven shaft, the outer gear is fixedly sleeved outside the inner cylinder, and the first gear is meshed with the outer gear.
Further, the sealing structure further comprises a diversion chamber fixedly connected to the inner wall of the bottom of one side of the tank body, which is close to the outflow pipe, and a through groove formed in the inner wall of the diversion chamber, the diversion chamber is of an arc-shaped structure, the inner wall of the diversion chamber is abutted to the outer wall of the inner cylinder, and the diversion chamber is communicated with the outflow pipe.
Further, the stirring mechanism comprises a motor arranged at the top of the tank body, a driving shaft fixedly connected to the output end of the motor and a plurality of stirring blades arranged outside the driving shaft, the bottom end of the driving shaft extends to the inner part of the inner cylinder and is rotationally connected with the inner cylinder, the stirring blades are all positioned in the inner part of the inner cylinder, and the driving shaft and the driven shaft extend to one end outside the tank body and are in transmission connection through a first transmission part.
Further, the quantity of auxiliary mechanism is a plurality of, auxiliary mechanism is including the fixed section of thick bamboo of rigid coupling on jar body top inner wall, install inlet pipe in fixed section of thick bamboo bottom one side, install the discharging pipe in fixed section of thick bamboo bottom opposite side, rotate along fixed section of thick bamboo height direction and connect at its inside reciprocating screw rod, the spiro union is at the outside connecting block of reciprocating screw rod, rigid coupling polished rod on reciprocating screw rod top and install the piston in fixed section of thick bamboo inside, the piston is located the below of connecting block and with connect through a plurality of connecting rods fixed connection between the connecting block, the top of polished rod extends to jar outside of body and is connected through the transmission of second driving medium between the driving shaft.
Further, guide rods parallel to the reciprocating screw rods are arranged on two sides of the reciprocating screw rods, the connecting blocks are sleeved outside the two guide rods in a sliding mode, and the top ends of the guide rods are fixedly connected to the inner wall of the top of the fixed cylinder.
Further, the feeding pipe and the discharging pipe are provided with one-way valves.
Compared with the prior art, the sewage treatment method based on desulfurization and denitrification provided by the application has the following beneficial effects:
through the cooperation of all parts of the dosing mechanism, the flowing speed of sewage entering the mixing equipment directly influences the rotating speed of the rotary table, and the change of the speed of the rotary table directly influences the dosing amount in the tank body, so that the faster the sewage flows into the tank body, the higher the dosing amount, and the slower the sewage flows into the tank body, the lower the dosing amount, thereby realizing the effect of automatically changing the dosing amount along with the sewage flow;
through the cooperation of each part of the stirring mechanism and the sealing structure, the inner cylinder is provided with the guide groove before being in butt joint with the guide chamber, sewage in the tank body enters the inner cylinder through the guide groove, when the guide groove on the inner cylinder rotates to be in butt joint with the outer wall of the guide chamber, the stirring mechanism sufficiently stirs sewage medicament mixed liquid in the inner cylinder, before the guide groove is communicated with the through groove, the sewage medicament mixed liquid in the inner cylinder is sufficiently mixed, and then when the guide groove is communicated with the through groove, the sewage medicament mixed liquid in the inner cylinder is discharged into the guide chamber and is discharged through the outflow pipe, so that the effects of circulating chemical adding and mixing treatment on sewage and ensuring that all sewage passing through the tank body can be uniformly mixed with medicaments are realized, and the subsequent flocculation and sedimentation effects of sewage are further ensured;
through the cooperation of each part of rabbling mechanism and auxiliary mechanism, the driving shaft drives polished rod and reciprocal screw rod through the second driving medium in rotation process and rotates to drive piston upper and lower reciprocating motion through connecting block and a plurality of connecting rod, thereby the circulation is inhaled the inside sewage medicament mixed liquor of jar body through the inlet pipe and is fixed inside rethread discharging pipe of a section of thick bamboo, thereby accelerates the inside liquid flow's of jar speed, accelerates the mixing of sewage and medicament, and then carries out preliminary mixing before sewage medicament mixed liquor gets into the inner tube stirring, has improved the homogeneity that sewage and medicament finally mix.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the present application, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
FIG. 1 is a schematic view of the overall structure of embodiment 1 of the present application;
fig. 2 is a schematic view of the internal structure of the tank according to embodiment 1 of the present application;
FIG. 3 is a schematic view of the inner structure of the inner cylinder according to embodiment 1 of the present application;
FIG. 4 is a schematic view of the overall structure of embodiment 2 of the present application;
fig. 5 is a schematic structural diagram of an auxiliary mechanism according to embodiment 2 of the present application;
fig. 6 is a schematic view of the internal structure of a fixing barrel according to embodiment 2 of the present application;
fig. 7 is a schematic structural diagram of an auxiliary mechanism according to embodiment 3 of the present application;
fig. 8 is an enlarged schematic view of the structure a in fig. 7 according to embodiment 3 of the present application.
Reference numerals illustrate:
1. a tank body; 2. an inflow tube; 3. an outflow tube; 4. a drug storage tank; 5. a turntable; 6. a medicine guiding groove; 7. an inner cylinder; 8. a diversion trench; 9. a drug guide tube; 10. an annular groove; 11. a transmission shaft; 12. an impeller; 13. a ratchet wheel; 14. a driven shaft; 15. a first gear; 16. an outer ring gear; 17. a diversion chamber; 18. a through groove; 19. a motor; 20. a driving shaft; 21. stirring the leaves; 22. a first transmission member; 23. a fixed cylinder; 24. a feed pipe; 25. a discharge pipe; 26. a reciprocating screw; 27. a connecting block; 28. a polish rod; 29. a piston; 30. a connecting rod; 31. a second transmission member; 32. a guide rod; 33. a one-way valve; 34. an inner gear ring; 35. a stirring rod; 36. and a second gear.
Detailed Description
In order to make the technical scheme of the present application better understood by those skilled in the art, the present application will be further described in detail with reference to the accompanying drawings.
Example 1:
referring to fig. 1 to 3, a sewage treatment method based on desulfurization and denitrification includes the following steps:
s1, dosing, namely firstly adding a medicament into sewage of mixing equipment, wherein the medicament is a flocculating agent, the dosage of the medicament is controlled by the flow rate of the sewage, and the sewage in the mixing equipment is the sewage after desulfurization and denitrification treatment.
S2, mixing, namely uniformly mixing the sewage passing through the inside of the mixing device with the medicament by using the mixing device, so that the medicament is hydrolyzed after being put into the sewage, and different charge colloid is produced to be contacted with the colloid in water and suspended matters to form fine floccules, wherein the mixing device comprises a tank body 1, an inflow pipe 2 is arranged on one side of the top of the tank body 1, an outflow pipe 3 is arranged at the bottom of one side of the tank body 1, the inflow pipe 2 is used for introducing the sewage into the tank body 1, and the outflow pipe 3 is used for guiding the sewage subjected to mixed dosing treatment into a reaction device;
the medicine feeding mechanism comprises a medicine storage tank 4 arranged at the top of a tank body 1, a rotary table 5 arranged below the medicine storage tank 4, a plurality of medicine guide grooves 6 arranged in the rotary table 5 and a power component used for driving the rotary table 5 to rotate, wherein a medicine guide pipe 9 is arranged at the bottom of the medicine storage tank 4, an annular groove 10 is arranged outside the rotary table 5, the annular groove 10 is respectively communicated with the plurality of medicine guide grooves 6, the bottom end of the medicine guide pipe 9 extends to the inside of the annular groove 10 and is matched with the annular groove 10, the power component comprises a transmission shaft 11 fixedly connected to the axis of the rotary table 5, an impeller 12 fixedly sleeved outside the transmission shaft 11 and a ratchet wheel 13 arranged outside the transmission shaft 11, the other end of the transmission shaft 11 is rotationally connected to the inner wall of the tank body 1, the ratchet wheel 13 is connected with the inner wall of the tank body 1 so as to enable the transmission shaft 11 to rotate unidirectionally, one end of an inflow pipe 2 is arranged above the impeller 12 and matched with the impeller 12, the plurality of medicine guide grooves 6 are distributed in an annular array by taking the transmission shaft 11 as the center, when sewage enters the tank body 1 through the inflow pipe 2 and is discharged downwards, the inside the tank body 1, the impeller 12 is driven to rotate downwards, the impeller 12 is driven to rotate, and the medicine flows into the tank 1 through the inside the transmission shaft 1 and then the medicine guide pipe 1 and the medicine guide pipe 1 to rotate more than the inside the tank 1, and the medicine guide pipe is directly rotates to the medicine tank 1, and then the medicine flows into the tank 1 through the inside the medicine guide pipe 1 to the medicine guide pipe to the medicine tank 1 to rotate more than the inside the medicine tank 1, and then the medicine 1 to be more slowly and then the medicine 1 to flow into the medicine tank 1, and then flows into the medicine tank 1 through the inside the medicine tank through the inside through the medicine tank through the medicine guide tank, and is changed to be more and is changed into the medicine tank, and is changed into the medicine;
an inner cylinder 7 which is arranged on the inner wall of the bottom of the tank body 1, the inner cylinder 7 is rotationally connected on the inner wall of the bottom of the tank body 1, a diversion trench 8 is arranged at the bottom of one side of the inner cylinder 7, a sealing structure is arranged between the inner cylinder 7 and the outflow pipe 3 and is used for driving the inner cylinder 7 to rotate and sealing the diversion trench 8, the sealing structure comprises a driven shaft 14 rotationally connected on the inner wall of the inner cylinder 1 along the height direction of the tank body, a first gear 15 fixedly sleeved outside the driven shaft 14 and an outer gear ring 16 fixedly sleeved outside the inner cylinder 7, the first gear 15 is meshed with the outer gear ring 16, the sealing structure also comprises a diversion chamber 17 fixedly connected on the inner wall of the bottom of one side of the tank body 1 close to the outflow pipe 3 and a through groove 18 arranged on the inner side wall of the diversion chamber 17, the diversion chamber 17 is of an arc-shaped structure, the inner side wall of the diversion chamber 17 is in butt joint with the outer wall of the inner cylinder 7, the diversion chamber 17 is communicated with the outflow pipe 3, when the driving shaft 20 rotates, the driven shaft 14 is driven to rotate by the first transmission piece 22, the inner cylinder 7 is driven to rotate by the meshing effect of the first gear 15 and the outer gear ring 16, the inner cylinder 7 is provided with the guide groove 8 before being in abutting sealing with the guide chamber 17, sewage in the tank body 1 enters the inner cylinder 7 through the guide groove 8 by the height difference of the liquid level in the inner cylinder 7, when the guide groove 8 on the inner cylinder 7 rotates to be in abutting sealing with the outer wall of the guide chamber 17, the stirring mechanism sufficiently stirs the sewage medicament mixed liquid in the inner cylinder 7, the sewage medicament mixed liquid in the inner cylinder 7 is sufficiently mixed before the guide groove 8 is communicated with the through groove 18, and then when the guide groove 8 is communicated with the through groove 18, the sewage medicament mixed liquid in the inner cylinder 7 is discharged into the guide chamber 17 and is discharged through the outflow pipe 3, thereby realizing the effects of circularly adding medicine to the sewage and mixing the sewage and ensuring that all the sewage passing through the tank body 1 can be uniformly mixed with the medicines, and further ensuring the subsequent flocculation precipitation effect of the sewage;
the stirring mechanism is arranged on the tank body 1 and is used for stirring sewage in the inner cylinder 7, the stirring mechanism comprises a motor 19 arranged at the top of the tank body 1, a driving shaft 20 fixedly connected to the output end of the motor 19 and a plurality of stirring blades 21 arranged outside the driving shaft 20, the bottom end of the driving shaft 20 extends to the inner cylinder 7 and is rotationally connected with the inner cylinder 7, the stirring blades 21 are all positioned in the inner cylinder 7, the driving shaft 20 and one end of the driven shaft 14 extending to the outer part of the tank body 1 are in transmission connection through a first transmission piece 22, the first transmission piece 22 comprises two transmission wheels fixedly sleeved on the outer parts of the driving shaft 20 and the driven shaft 14 respectively and a belt in transmission connection with the outer parts of the two transmission wheels, the driving shaft 20 is driven to rotate through the starting motor 19, and the stirring blades 21 rotate along with the driving shaft to stir sewage and medicament mixed liquid in the inner cylinder 7, and the rotation direction of the stirring blades 21 is opposite to the rotation direction of the inner cylinder 7.
S3, reacting, namely enabling sewage which forms fine floccules through the mixing equipment to flow into the reaction equipment to gradually flocculate the small floccules into large floccules, enabling the stirring intensity of the reaction equipment along the water inflow direction to be smaller and smaller, enabling the small floccules to collide with each other, and preventing produced large floccules from precipitating.
S4, sedimentation, wherein the sewage obtained in the step S3 flows into a sedimentation tank to carry out mud-water separation.
S5, cleaning, namely cleaning suspended matters in the sedimentation tank and sludge at the bottom of the sedimentation tank.
Example 2:
referring to fig. 4-6, the present embodiment provides a technical solution based on the first embodiment: the auxiliary mechanism is arranged in the tank body 1 and used for accelerating the flow speed of the liquid outside the inner cylinder 7, the auxiliary mechanism is a plurality of, the auxiliary mechanism comprises a fixed cylinder 23 fixedly connected on the inner wall of the top of the tank body 1, a feed pipe 24 arranged on one side of the bottom of the fixed cylinder 23, a discharge pipe 25 arranged on the other side of the bottom of the fixed cylinder 23, a reciprocating screw 26 rotationally connected in the fixed cylinder 23 along the height direction of the fixed cylinder 23, a connecting block 27 screwed outside the reciprocating screw 26, a polish rod 28 fixedly connected at the top end of the reciprocating screw 26 and a piston 29 arranged in the fixed cylinder 23, the piston 29 is positioned below the connecting block 27 and fixedly connected with the connecting block 27 through a plurality of connecting rods 30, the top end of the polish rod 28 extends to the outside of the tank body 1 and is in transmission connection with a driving shaft 20 through a second transmission piece 31, the second driving part 31 comprises two driving wheels fixedly sleeved outside the driving shaft 20 and the polished rod 28 and belts connected outside the two driving wheels in a driving way, guide rods 32 parallel to the driving wheels are arranged on two sides of the reciprocating screw 26, a connecting block 27 is slidingly sleeved outside the two guide rods 32, the top ends of the guide rods 32 are fixedly connected to the inner wall of the top of the fixed cylinder 23, one-way valves 33 are arranged on the feeding pipe 24 and the discharging pipe 25, the one-way valves 33 outside the feeding pipe 24 are used for ensuring that sewage inside the tank 1 can flow into the fixed cylinder 23 through the feeding pipe 24, sewage inside the fixed cylinder 23 cannot flow out through the feeding pipe 24, the one-way valves 33 on the discharging pipe 25 are used for ensuring that sewage inside the fixed cylinder 23 can be discharged through the discharging pipe 25, external gas cannot enter the fixed cylinder 23 through the discharging pipe 25, the driving shaft 20 drives the polished rod 28 to rotate through the second driving part 31 in the rotating process, and then drives the reciprocating screw 26 to rotate, thereby driving the connecting block 27 to reciprocate up and down along the outside of the guide rod 32, thereby driving the piston 29 to reciprocate up and down through the plurality of connecting rods 30, thereby sucking the sewage medicament mixed liquid in the tank body 1 into the fixed cylinder 23 through the feeding pipe 24 in a circulating way and then discharging the sewage medicament mixed liquid through the discharging pipe 25, thereby accelerating the flowing speed of the liquid in the tank body 1 and accelerating the mixing of sewage and medicaments.
Example 3:
referring to fig. 7 and 8, this embodiment is an alternative of the second embodiment: the auxiliary mechanism comprises an annular gear 34 fixedly connected to the inner wall of the tank body 1, a plurality of stirring rods 35 connected to the outer wall of the inner cylinder 7 in a rotating manner along the height direction of the inner cylinder 7, and a plurality of second gears 36 fixedly sleeved outside the stirring rods 35, wherein the stirring rods 35 are distributed in an annular array with the inner cylinder 7 as the center, the second gears 36 are meshed with the annular gear 34, the inner cylinder 7 drives the stirring rods 35 to revolve around the annular gear 34 in the rotating process, and the stirring rods 35 are driven to rotate in the revolving process through the meshing effect of the second gears 36 and the annular gear 34, so that after sewage enters the tank body 1 and is administrated, the sewage and the medicament before entering the inner cylinder 7 can be stirred and mixed, and the uniformity of the sewage and the medicament mixing is improved.
Working principle: when the sewage enters the tank body 1 through the inflow pipe 2 and is discharged downwards, the impeller 12 is driven to rotate, the faster the sewage flowing speed is, the faster the impeller 12 rotates, the faster the turntable 5 is driven to rotate through the transmission shaft 11, when the medicine guide groove 6 is communicated with the medicine guide pipe 9, the medicine in the medicine storage tank 4 enters the medicine guide groove 6 through the medicine guide pipe 9 and is discharged downwards into the sewage in the tank body 1, the change of the speed of the turntable 5 directly influences the medicine adding amount in the tank body 1, the faster the sewage flows into the tank body 1, the higher the medicine adding amount is, the slower the sewage flows into the tank body 1 is, the medicine adding amount is, the sewage medicine mixed liquid in the tank body 1 enters the inner cylinder 7 through the guide groove 8, the driving shaft 20 is driven to rotate through the starting motor 19, the plurality of stirring blades 21 stir the sewage medicine mixed liquid in the inner cylinder 7 along with the rotation, when the driving shaft 20 rotates, the driven shaft 14 is driven to rotate by the first transmission piece 22, the inner cylinder 7 is driven to rotate by the meshing effect of the first gear 15 and the outer gear ring 16, the inner cylinder 7 is provided with the guide groove 8 before being in abutting sealing with the guide chamber 17, sewage in the tank body 1 enters the inner cylinder 7 through the guide groove 8 by the height difference of the liquid level in the inner cylinder 7, when the guide groove 8 on the inner cylinder 7 rotates to be in abutting sealing with the outer wall of the guide chamber 17, the stirring mechanism sufficiently stirs the sewage medicament mixed liquid in the inner cylinder 7, the sewage medicament mixed liquid in the inner cylinder 7 is sufficiently mixed before the guide groove 8 is communicated with the through groove 18, and then when the guide groove 8 is communicated with the through groove 18, the sewage medicament mixed liquid in the inner cylinder 7 is discharged into the guide chamber 17 and is discharged through the outflow pipe 3, thereby realizing the effects of circularly adding medicine to the sewage and mixing the sewage and ensuring that all the sewage passing through the tank body 1 can be uniformly mixed with the medicines, and further ensuring the subsequent flocculation precipitation effect of the sewage;
in addition, the driving shaft 20 drives the polish rod 28 to rotate through the second transmission piece 31 in the rotating process, and then drives the reciprocating screw 26 to rotate, so as to drive the connecting block 27 to reciprocate up and down along the outer part of the guide rod 32, so as to drive the piston 29 to reciprocate up and down through the plurality of connecting rods 30, and thus the sewage medicament mixed liquid in the tank body 1 is sucked into the fixed cylinder 23 through the feeding pipe 24 and then discharged through the discharging pipe 25, and the flowing speed of the liquid in the tank body 1 is accelerated, so that the mixing of sewage and medicaments is accelerated.
While certain exemplary embodiments of the present application have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the application. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the application, which is defined by the appended claims.
Claims (6)
1. The sewage treatment method based on desulfurization and denitrification is characterized by comprising the following steps:
s1, dosing, namely firstly, dosing a medicament into sewage of a mixing device, wherein the dosage of the medicament is controlled by the flow rate of the sewage, and the sewage in the mixing device is the sewage after desulfurization and denitrification treatment;
s2, mixing, namely uniformly mixing the sewage passing through the interior of the mixing equipment with the medicament, so that the medicament is hydrolyzed after being put into the sewage, and heterocharge colloid is generated to contact with colloid and suspended matters in water to form fine floccules;
s3, reacting, namely enabling the sewage which forms fine floccules through the mixing equipment to flow into the reaction equipment to gradually flocculate the small floccules into large floccules, wherein the stirring strength of the reaction equipment along the water inflow direction is smaller and smaller, so that the small floccules can collide with each other and the produced large floccules are prevented from precipitating;
s4, sedimentation, wherein the sewage obtained in the step S3 flows into a sedimentation tank to carry out mud-water separation;
s5, cleaning, namely cleaning suspended matters in the sedimentation tank and sludge at the bottom of the sedimentation tank;
the mixing equipment comprises a tank body (1), wherein an inflow pipe (2) is arranged at one side of the top of the tank body (1), and an outflow pipe (3) is arranged at the bottom of one side of the tank body (1);
the medicine feeding mechanism comprises a medicine storage tank (4) arranged at the top of the tank body (1), a rotary table (5) arranged below the medicine storage tank (4), a plurality of medicine guide grooves (6) arranged in the rotary table (5) and a power assembly for driving the rotary table (5) to rotate;
the inner cylinder (7) is arranged on the inner wall of the bottom of the tank body (1), a diversion trench (8) is formed in the bottom of one side of the inner cylinder (7), and a sealing structure is arranged between the inner cylinder (7) and the outflow pipe (3) and used for driving the inner cylinder (7) to rotate and sealing the diversion trench (8);
the stirring mechanism is arranged on the tank body (1) and is used for stirring sewage in the inner cylinder (7);
the auxiliary mechanism is arranged in the tank body (1) and used for accelerating the flow speed of liquid outside the inner cylinder (7), the auxiliary mechanism is multiple in number and comprises a fixed cylinder (23) fixedly connected to the inner wall of the top of the tank body (1), a feed pipe (24) arranged on one side of the bottom of the fixed cylinder (23), a discharge pipe (25) arranged on the other side of the bottom of the fixed cylinder (23), a reciprocating screw (26) rotationally connected to the inside of the fixed cylinder (23) along the height direction of the fixed cylinder, a connecting block (27) screwed to the outside of the reciprocating screw (26), a polish rod (28) fixedly connected to the top end of the reciprocating screw (26) and a piston (29) arranged in the inside of the fixed cylinder (23), the piston (29) is positioned below the connecting block (27) and fixedly connected with the connecting block (27) through a plurality of connecting rods (30), the top end of the polish rod (28) extends to the outside of the tank body (1) and is in transmission connection with a driving shaft (20) through a second transmission piece (31), two sides of the reciprocating screw (26) are respectively provided with a guide rod (32) which is parallel to the guide rods (27) and the top of the guide rods (32) are fixedly connected to the top of the connecting block (32), and the feed pipe (24) and the discharge pipe (25) are provided with one-way valves (33).
2. The desulfurization and denitrification-based sewage treatment method according to claim 1, wherein a medicine guide pipe (9) is installed at the bottom of the medicine storage tank (4), annular grooves (10) are formed in the outer portion of the rotary disc (5), the annular grooves (10) are respectively communicated with a plurality of medicine guide grooves (6), and the bottom ends of the medicine guide pipes (9) extend to the inner portion of the annular grooves (10) and are matched with the annular grooves (10).
3. The desulfurization and denitrification-based sewage treatment method according to claim 1, wherein the power assembly comprises a transmission shaft (11) fixedly connected to the axis of the rotary disc (5), an impeller (12) fixedly sleeved outside the transmission shaft (11) and a ratchet wheel (13) installed outside the transmission shaft (11), the other end of the transmission shaft (11) is rotatably connected to the inner wall of the tank body (1), the ratchet wheel (13) is connected with the inner wall of the tank body (1) so as to enable the transmission shaft (11) to rotate unidirectionally, one end of the inflow pipe (2) positioned inside the tank body (1) is positioned above the impeller (12) and matched with the impeller (12), and the plurality of medicine guiding grooves (6) are distributed in an annular array with the transmission shaft (11) as the center.
4. The desulfurization and denitrification-based sewage treatment method according to claim 1, wherein the sealing structure comprises a driven shaft (14) rotatably connected to the inner wall of the tank body (1) along the height direction, a first gear (15) fixedly sleeved outside the driven shaft (14) and an outer gear ring (16) fixedly sleeved outside the inner cylinder (7), and the first gear (15) is meshed with the outer gear ring (16).
5. The desulfurization and denitrification-based sewage treatment method according to claim 4, wherein the sealing structure further comprises a diversion chamber (17) fixedly connected to the inner wall of the bottom of one side of the tank body (1) close to the outflow pipe (3) and a through groove (18) formed in the inner side wall of the diversion chamber (17), the diversion chamber (17) is of an arc-shaped structure, the inner side wall of the diversion chamber (17) is abutted to the outer wall of the inner cylinder (7), and the diversion chamber (17) is communicated with the outflow pipe (3).
6. The desulfurization and denitrification-based sewage treatment method according to claim 1, wherein the stirring mechanism comprises a motor (19) arranged at the top of the tank body (1), a driving shaft (20) fixedly connected to the output end of the motor (19) and a plurality of stirring blades (21) arranged outside the driving shaft (20), the bottom end of the driving shaft (20) extends to the inside of the inner cylinder (7) and is rotationally connected with the inner cylinder (7), the stirring blades (21) are all positioned in the inside of the inner cylinder (7), and one ends of the driving shaft (20) and the driven shaft (14) extending to the outside of the tank body (1) are in transmission connection through a first transmission piece (22).
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| CN208604005U (en) * | 2018-06-15 | 2019-03-15 | 上海城投污水处理有限公司 | A kind of belt type dewaterer flocculation stirring device |
| KR102314580B1 (en) * | 2021-03-09 | 2021-10-18 | (주)효성엔바이로 | Mixing apparatus |
| CN113772795A (en) * | 2021-09-29 | 2021-12-10 | 中冶赛迪技术研究中心有限公司 | Flocculation basin assembly |
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| CN216737705U (en) * | 2021-11-26 | 2022-06-14 | 扬州新河水工业设备有限公司 | Flocculation stirring integration medicine system |
| CN216997800U (en) * | 2021-12-23 | 2022-07-19 | 陕西科技大学 | High-efficiency mechanical clarification solid-liquid separation device integrating coagulation and precipitation |
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| CN208604005U (en) * | 2018-06-15 | 2019-03-15 | 上海城投污水处理有限公司 | A kind of belt type dewaterer flocculation stirring device |
| KR102314580B1 (en) * | 2021-03-09 | 2021-10-18 | (주)효성엔바이로 | Mixing apparatus |
| CN215798656U (en) * | 2021-09-09 | 2022-02-11 | 安徽三江水务工程有限公司 | Flocculating agent throwing mixing equipment for industrial sewage treatment tank |
| CN113772795A (en) * | 2021-09-29 | 2021-12-10 | 中冶赛迪技术研究中心有限公司 | Flocculation basin assembly |
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| CN216997800U (en) * | 2021-12-23 | 2022-07-19 | 陕西科技大学 | High-efficiency mechanical clarification solid-liquid separation device integrating coagulation and precipitation |
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| CN116395815A (en) | 2023-07-07 |
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