CN111285559A - Municipal sewage treatment method - Google Patents
Municipal sewage treatment method Download PDFInfo
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- CN111285559A CN111285559A CN202010233626.2A CN202010233626A CN111285559A CN 111285559 A CN111285559 A CN 111285559A CN 202010233626 A CN202010233626 A CN 202010233626A CN 111285559 A CN111285559 A CN 111285559A
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- sewage treatment
- sewage
- filter screen
- tank
- opening
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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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
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
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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
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
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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
- C02F3/02—Aerobic processes
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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
- C02F7/00—Aeration of stretches of water
Abstract
The invention relates to a municipal sewage treatment method, which comprises the steps of conveying municipal road sewage into a sewage treatment box through a water conveying pipeline, and removing impurities doped in the road sewage through a filter screen; discharging the treated sewage in the sewage treatment tank into a primary sedimentation tank, and carrying out sedimentation treatment for 4-7 hours; the cover plate of the box opening of the sewage treatment box is opened through the first driving mechanism, and the filter screen is driven to move to the box opening of the sewage treatment box through the second driving mechanism to be cleaned; discharging the sewage after primary precipitation to a biochemical pool, and carrying out aeration treatment for 9-10 hours; discharging the sewage after biochemical treatment to a secondary sedimentation tank, standing and precipitating for 2-3 hours; discharging the sewage treated by the secondary sedimentation tank into a disinfection tank, and carrying out disinfection and sterilization treatment for 2-3 hours; the municipal road sewage after the disinfection treatment of the disinfection tank is changed into purified water, and the purified water is directly discharged into a natural water body. The invention has the effects of cleaning the filter screen and avoiding the blockage of the holes of the filter screen.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a municipal sewage treatment method.
Background
With the development of the modern society, the environmental pollution is regarded by the modern society, wherein water is not only a basic condition for human survival, but also a precious resource for human and a spring for life. Sewage treatment is therefore one of the measures in which the environment is protected.
Present, sewage treatment generally divide into prefiltering, first sediment, anaerobic decomposition, secondary sedimentation and secondary filtration, will municipal sewage input sewage treatment plant earlier, carry out prefiltering through the filter screen, will discharge prefiltering's sewage into the preliminary sedimentation tank after that and carry out first sediment, then sewage input anaerobism pond after the preliminary sedimentation carries out anaerobic decomposition, the rethread secondary sedimentation tank carries out the secondary sedimentation, obtain the water that accords with the standard after finally through the secondary filtration.
The above prior art solutions have the following drawbacks: the step of sewage treatment does not involve the cleaning of impurities in the filter screen after the filtration in the preliminary filtration, and after the sewage treatment step is used for a period of time, the impurities can block the holes of the filter screen.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a municipal sewage treatment method which has the effects of cleaning a filter screen and avoiding the blockage of holes of the filter screen.
The above object of the present invention is achieved by the following technical solutions:
a municipal sewage treatment method is characterized by comprising the following steps:
s1: primary filtering, namely conveying the municipal road sewage into a sewage treatment box through a water conveying pipeline, and removing impurities doped in the road sewage through a filter screen;
s2: primary sedimentation, namely discharging the sewage treated in the sewage treatment tank into a primary sedimentation tank, and carrying out sedimentation treatment for 4-7 hours;
s3: cleaning the filter screen, namely opening a cover plate of a box opening of the sewage treatment box through a first driving mechanism, and driving the filter screen to move to the box opening of the sewage treatment box through a second driving mechanism to clean impurities filtered by the filter screen;
s4: biochemical treatment, discharging the sewage after primary precipitation into a biochemical tank, and carrying out aeration treatment for 9-10 hours;
s5: secondary sedimentation, discharging the sewage after biochemical treatment to a secondary sedimentation tank, standing and precipitating for 2-3 hours;
s6: sterilizing, namely discharging the sewage treated by the secondary sedimentation tank into a sterilizing tank, and performing sterilizing treatment for 2-3 hours;
s7: still water is discharged, municipal road sewage after disinfection treatment in the disinfection tank is changed into purified water, and the purified water is directly discharged into natural water.
By adopting the technical scheme, when in work, sewage is firstly conveyed into the sewage treatment box through the water conveying pipeline to remove impurities; conveying the sewage subjected to primary filtration to a primary sedimentation tank, so that the non-solute in the road sewage is precipitated at the bottom of the primary sedimentation tank; then, in the primary sedimentation process, the cover plate is opened through the first driving mechanism, and then the filter screen is moved to the tank opening of the sewage treatment tank through the second driving mechanism, so that impurities of the filter screen can be cleaned; then, conveying the road sewage on the upper layer of the primary sedimentation tank to a biochemical tank for aeration treatment to decompose organic matters in the sewage into methane, carbon dioxide and the like; then discharging the sewage after biochemical treatment to a secondary sedimentation tank for standing so as to fully precipitate insoluble impurities in the sewage; then discharging the sewage after secondary precipitation to a disinfection tank, carrying out sterilization and disinfection treatment to obtain purified water, and finally discharging the purified water to a natural water body; the impurity that this in-process was filtered out the filter screen can be cleared up, avoids blockking up the delivery port.
The invention is further configured to: the sewage treatment case top opening, the sewage treatment case is close to open-ended one end and is equipped with the raceway, the bottom of the case of sewage treatment case is equipped with the outlet pipe along circumference, the position that is located between raceway and the outlet pipe in the sewage treatment incasement is equipped with the filter screen, the relative both sides of open-ended of sewage treatment case all articulate there is the apron, two cover the opening after the apron concatenation.
By adopting the technical scheme, sewage is input into the sewage treatment box from the water delivery pipe, and then impurities doped in the sewage are filtered by the filter screen; a plurality of water outlet pipes are arranged at intervals along the circumferential direction, so that water can be drained more fully and quickly; the two cover plates are arranged, so that the occupied area of the cover plate after the cover plate is opened can be reduced.
The invention is further configured to: the first drive mechanism includes: the sewage treatment device comprises a fixed plate, a connecting plate, sliding grooves, sliding blocks and supporting rods, wherein the fixed plate is arranged on two opposite outer side walls of a sewage treatment tank, the connecting plate is arranged on two opposite sides of a cover plate and is parallel to the fixed plate, the sliding grooves are formed in one side, close to the connecting plate, of the fixed plate, the sliding blocks are arranged in the sliding grooves in a sliding mode, the extending direction of the sliding grooves is perpendicular to a hinge shaft of the cover plate, one end of each supporting rod is hinged to the connecting plate, the other end of each supporting rod is hinged to the corresponding sliding block, and the fixed plate is provided with a first driving assembly for driving the; when the two sliding blocks are close to each other, the two cover plates rotate towards the opening direction; when the two sliding blocks are far away from each other, the two cover plates rotate towards the direction far away from the opening.
Through adopting above-mentioned technical scheme, when needs are opened two apron, all remove towards the direction of keeping away from each other through two sliding blocks of a drive assembly drive each side to prop up the apron that corresponds through the bracing piece, when the extending direction of bracing piece was parallel to each other with the connecting plate, can open the apron to perpendicular mutually with the opening, accomplish opening to the apron promptly.
The invention is further configured to: first drive assembly installs in the lead screw of sliding the inslot and is used for the drive including rotating lead screw pivoted first driving piece, the lead screw includes first transmission portion and second transmission portion, integrated into one piece between first transmission portion and the second transmission portion, the screw of first transmission portion and second transmission portion encircles opposite direction, is located same two of fixed plate sliding block difference screw-thread fit installs in first transmission portion and second transmission portion.
Through adopting above-mentioned technical scheme, through starting first driving piece drive lead screw, because the screw of the first drive division of lead screw and second drive division encircles the opposite direction to can accomplish the direction removal that the drive sliding block is close to each other or is kept away from each other.
The invention is further configured to: the second drive mechanism includes: stay cord, locate the mounting panel of sewage treatment case lateral wall, locate the mount pad of mounting panel, rotate and install in the wind-up roll and the drive of mount pad wind-up roll pivoted second driving piece, the one end and the wind-up roll of stay cord are connected, the other end stretches into in the sewage treatment case and is connected with the filter screen.
Through adopting above-mentioned technical scheme, rotate through second driving piece drive wind-up roll to carry out the rolling to the stay cord, thereby can drive the filter screen and remove towards the opening part of sewage treatment case, when removing to being close to the open position, the operator can clear up the impurity in the filter screen.
The invention is further configured to: the opening edge of sewage treatment case is equipped with the mounting groove, install the fixed pulley in the mounting groove, the stay cord is around locating the fixed pulley.
Through adopting above-mentioned technical scheme, thereby make the in-process that carries out the rolling at the stay cord more smooth and easy through being provided with the fixed pulley, improve work efficiency.
The invention is further configured to: the filter screen is provided with a pull ring, and one end of the pull rope, which is far away from the winding roller, is provided with a hook matched with the hanging ring.
Through adopting above-mentioned technical scheme, the cooperation through couple and pull ring makes when needs are dismantled the filter screen, can get away the pull ring with the couple, can follow the sewage treatment incasement with the filter screen and take out, change or maintain.
The invention is further configured to: the filter screen is equipped with the scraper along the edge extension, the thickness of scraper reduces gradually towards the inside wall of sewage treatment case from the one side that is close to the filter screen, one side butt that the filter screen was kept away from to the scraper is in the inside wall of sewage treatment case.
Through adopting above-mentioned technical scheme, through being provided with the scraper to make when removing the filter screen towards open-ended direction, can scrape away to the impurity that is located sewage treatment incasement wall.
The invention is further configured to: the bottom of the sewage treatment box is provided with a conical table, and the cross-sectional area of the conical table is gradually reduced from the bottom of the sewage treatment box to the opening direction.
Through adopting above-mentioned technical scheme, through being provided with the toper platform to make after sewage carries out the filter screen and filters, when falling to the bottom of the case of sewage treatment case, can lead it to the delivery port department that the outlet pipe corresponds, improve drainage efficiency
The invention is further configured to: the mesh number of the filter screen is 200-350 meshes.
By adopting the technical scheme, the mesh number of the filter screen is set to be 200-350 meshes, so that the filtered water body can reach the discharge standard.
In summary, the invention includes at least one of the following beneficial technical effects:
1. when the sewage treatment device works, sewage is firstly conveyed into the sewage treatment box through the water conveying pipeline to remove impurities; conveying the sewage subjected to primary filtration to a primary sedimentation tank, so that the non-solute in the road sewage is precipitated at the bottom of the primary sedimentation tank; then, in the primary sedimentation process, the cover plate is opened through the first driving mechanism, and then the filter screen is moved to the tank opening of the sewage treatment tank through the second driving mechanism, so that impurities of the filter screen can be cleaned; then, conveying the road sewage on the upper layer of the primary sedimentation tank to a biochemical tank for aeration treatment to decompose organic matters in the sewage into methane, carbon dioxide and the like; then discharging the sewage after biochemical treatment to a secondary sedimentation tank for standing so as to fully precipitate insoluble impurities in the sewage; then discharging the sewage after secondary precipitation to a disinfection tank, carrying out sterilization and disinfection treatment to obtain purified water, and finally discharging the purified water to a natural water body; in the process, impurities filtered by the filter screen can be cleaned, so that the water outlet is prevented from being blocked;
2. when the two cover plates need to be opened, the two sliding blocks on each side are driven by the first driving assembly to move towards the directions away from each other, so that the corresponding cover plates are supported by the supporting rods, and when the extending directions of the supporting rods are parallel to the connecting plates, the cover plates can be opened to be perpendicular to the openings, and the cover plates are opened;
3. the winding roller is driven to rotate by the second driving piece, so that the pull rope is wound, the filter screen can be driven to move towards the opening of the sewage treatment box, and an operator can clean impurities in the filter screen when the filter screen moves to a position close to the opening;
4. through being provided with the scraper to make when removing the filter screen towards open-ended direction, can scrape away to the impurity that is located sewage treatment incasement wall.
Drawings
FIG. 1 is a flow chart of a method.
Fig. 2 is a sectional view of the entire structure.
Fig. 3 is a schematic view of the overall structure.
Fig. 4 is a partially enlarged schematic view of a portion a in fig. 3.
Fig. 5 is a partially enlarged schematic view of a portion B in fig. 2.
In the figure, 1, a sewage treatment tank; 11. a water delivery pipe; 12. a water outlet pipe; 13. a filter screen; 131. a pull ring; 132. a scraper; 14. a conical table; 15. mounting grooves; 16. a fixed pulley; 17. a cover plate; 2. a first drive mechanism; 21. a fixing plate; 22. a connecting plate; 23. a sliding groove; 24. a sliding block; 25. a support bar; 26. a screw rod; 261. a first transmission unit; 262. a second transmission part; 27. a first driving member; 3. a second drive mechanism; 31. pulling a rope; 311. hooking; 32. mounting a plate; 33. a mounting seat; 34. a wind-up roll; 35. a second driving member; 36. a limit ring.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in figure 1, the municipal sewage treatment method disclosed by the invention comprises the following specific steps:
the method comprises the following steps: primary filtration, namely conveying the municipal road sewage into the sewage treatment box 1 through a water conveying pipe 11, and removing impurities doped in the road sewage through a filter screen 13 in the sewage treatment box 1;
step two: primary precipitation, discharging the sewage treated in the sewage treatment tank 1 into a primary precipitation tank, and performing precipitation treatment for 4-7 hours, in this embodiment, 5 hours, so that the non-solute in the road sewage is precipitated at the bottom of the primary precipitation tank;
step three: cleaning the filter screen 13, namely opening a cover plate 17 of a tank opening of the sewage treatment tank 1 through the first driving mechanism 2, and then driving the filter screen 13 to move to the position of the tank opening of the sewage treatment tank 1 through the second driving mechanism 3 to clean impurities filtered by the filter screen 13;
step four: biochemical treatment, namely inputting the sewage subjected to primary precipitation into a biochemical pond, and carrying out aeration treatment for 9-10 hours, in the embodiment, 9 hours, so as to decompose organic matters in the sewage into methane, carbon dioxide and the like;
step five: performing secondary precipitation, namely discharging the sewage subjected to biochemical treatment to a secondary precipitation tank, standing and precipitating for 2-3 hours (2 hours in the embodiment), so that insoluble impurities in the sewage are fully precipitated;
step six: sterilizing, namely discharging the sewage treated by the secondary sedimentation tank into a sterilizing tank, and performing sterilizing treatment for 2-3 hours, in the embodiment, 3 hours, so as to form purified water;
step seven: and discharging the purified water, wherein the municipal road sewage after the disinfection treatment in the disinfection tank is changed into the purified water, and the purified water is directly discharged into natural water.
As shown in fig. 2, an opening is formed above the sewage treatment tank 1, a water delivery pipe 11 is arranged on the outer side wall of the sewage treatment tank 1 close to the opening, the water delivery pipe 11 is communicated with the inside of the sewage treatment tank 1, water outlet pipes 12 are arranged on the outer side wall of the bottom of the sewage treatment tank 1 at equal intervals along the circumferential direction, the water outlet pipes 12 are communicated with the inside of the sewage treatment tank 1, a filter screen 13 is arranged in the sewage treatment tank 1 and is positioned between the water delivery pipe 11 and the water outlet pipes 12, the mesh number of the filter screen 13 is 200 meshes and 300 meshes, and in the embodiment; two apron 17 are installed to sewage treatment case 1's opening part, and two apron 17's size is unanimous, can articulate the opening edge at sewage treatment case 1 with the opening covers two apron 17 one end of keeping away from each other completely behind two apron 17 splices, and every apron 17 keeps away from the one end of articulated department and is circular-arc.
The bottom of the sewage treatment box 1 is fixedly provided with a conical table 14, and the cross-sectional area of the conical table 14 is gradually reduced from the bottom of the sewage treatment box 1 to the opening direction, so that filtered sewage flows into the water outlet pipe 12 more rapidly, and the treatment efficiency is improved.
As shown in fig. 3 and 4, the first drive mechanism 2 includes: the fixed plate 21 is fixedly arranged on two opposite outer side walls of the sewage treatment tank 1, the connecting plate 22 is integrally arranged on the cover plate 17, the fixed plate 21 and the connecting plate 22 are parallel to each other, the sliding groove 23 is arranged on the fixed plate 21, the extending direction of the sliding groove 23 is perpendicular to the extending direction of a rotating shaft of the cover plate 17, a screw rod 26 is arranged in the sliding groove 23, the extending direction of the screw rod 26 is consistent with the extending direction of the sliding groove 23, two opposite ends of the screw rod 26 are rotatably arranged on two opposite ends of the sliding groove 23 through bearings, the screw rod 26 comprises a first transmission part 261 and a second transmission part 262, the first transmission part 261 and the second transmission part 262 are integrally formed, the threads of the first transmission part 261 and the second transmission part 262 are oppositely arranged, two sliding blocks 24 are arranged in each sliding groove 23, the two sliding blocks 24 are respectively arranged in the first transmission part 261 and the second transmission part 262 in a thread fit manner, a first driving member 27 is fixed on the fixing plate 21, and the first driving member 27 is a motor; one end of the support rod 25 is hinged to the sliding block 24, and the other end is hinged to one side of the corresponding connecting plate 22 close to the fixing plate 21, so that when the first driving member 27 mounted on the two fixing plates 21 drives the corresponding screw rods 26 to rotate in the same direction, the sliding block 24 in each sliding groove 23 can be driven to move in the direction close to or away from each other, and the cover plate 17 can be opened or closed through the corresponding support rod 25.
When the two sliding blocks 24 approach each other, the two cover plates 17 rotate towards the opening direction; when the two sliding blocks 24 are far away from each other, the two cover plates 17 rotate in the direction of far away from the opening.
As shown in fig. 3 and 5, the second driving assembly includes: the device comprises a pull rope 31, mounting plates 32, mounting seats 33, a winding roller 34 and a second driving piece 35, wherein the two mounting plates 32 are arranged, the two mounting plates 32 are respectively and fixedly mounted on two opposite outer side walls of the sewage treatment tank 1, the mounting plates 32 are positioned on the cover plate 17 and hinged on the side walls of the sewage treatment tank 1, each mounting plate 32 is fixedly provided with the mounting seat 33, and two opposite ends of the winding roller 34 are rotatably mounted on the mounting seats 33; the second driving member 35 is a motor, a rotating shaft of the second driving member 35 is fixed to the winding roller 34, namely, the winding roller 34 is driven to rotate, one end of the pull rope 31 is fixed to the winding roller 34, the other end of the pull rope 31 extends into the sewage treatment tank 1, the winding roller 34 is fixed with a pair of limiting rings 36, and the pull rope 31 is fixed to the winding roller 34 between the two limiting rings 36.
The opposite ends of the filter screen 13 are fixed with pull rings 131, one end of the pull rope 31 extending into the sewage treatment tank 1 is fixed with a hook 311, and the hook 311 is hooked on the pull ring 131, so that the filter screen 13 can be moved towards the opening direction when the pull rope 31 is wound by the winding roller 34.
The opening edge of sewage treatment box 1 corresponds the position with mounting panel 32 and is equipped with mounting groove 15, installs fixed pulley 16 in mounting groove 15, and stay cord 31 is around establishing at fixed pulley 16 to it is more smooth and easy to make the stay cord 31 path.
The filter screen 13 is fixedly provided with a scraper 132 (as shown in fig. 2) along the edge, the thickness of the scraper 132 is gradually reduced from one side close to the filter screen 13 to the inner side wall of the sewage treatment tank 1, and one side of the scraper 132 far away from the filter screen 13 abuts against the inner side wall of the sewage treatment tank 1, so that impurities on the inner side wall of the sewage treatment tank 1 can be scraped away along the belt when the filter screen 13 moves towards the opening.
The implementation principle of the embodiment is as follows: when the impurities filtered by the filter screen 13 need to be cleaned, the first driving part 27 is started first to drive the sliding blocks 24 located in the same sliding groove 23 to move in the direction away from each other, so that the two cover plates 17 can be opened; then, the second driving member 35 is started to drive the winding roller 34 to rotate, so that the pulling rope 31 is wound, the filter screen 13 can be moved towards the opening, and impurities can be cleaned when the filter screen is moved to be close to the opening.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (10)
1. A municipal sewage treatment method is characterized by comprising the following steps:
s1: primary filtration, namely conveying the municipal road sewage into a sewage treatment box (1) through a water conveying pipe (11), and removing impurities doped in the road sewage through a filter screen (13);
s2: primary sedimentation, namely discharging the sewage treated in the sewage treatment box (1) into a primary sedimentation tank, and carrying out sedimentation treatment for 4-7 hours;
s3: cleaning the filter screen (13), namely opening a cover plate (17) of a box opening of the sewage treatment box (1) through the first driving mechanism (2), and then driving the filter screen (13) to move to the box opening of the sewage treatment box (1) through the second driving mechanism (3) to clean impurities filtered out by the filter screen (13);
s4: biochemical treatment, discharging the sewage after primary precipitation into a biochemical tank, and carrying out aeration treatment for 9-10 hours;
s5: secondary sedimentation, discharging the sewage after biochemical treatment to a secondary sedimentation tank, standing and precipitating for 2-3 hours;
s6: sterilizing, namely discharging the sewage treated by the secondary sedimentation tank into a sterilizing tank, and performing sterilizing treatment for 2-3 hours;
s7: still water is discharged, municipal road sewage after disinfection treatment in the disinfection tank is changed into purified water, and the purified water is directly discharged into natural water.
2. The municipal sewage treatment method according to claim 1, wherein the sewage treatment tank (1) is open at the top, a water delivery pipe (11) is arranged at one end of the sewage treatment tank (1) close to the opening, a water outlet pipe (12) is arranged at the bottom of the sewage treatment tank (1) along the circumferential direction, the filter screen (13) is arranged in the sewage treatment tank (1) and located between the water delivery pipe (11) and the water outlet pipe (12), cover plates (17) are hinged to two opposite sides of the opening of the sewage treatment tank (1), and the two cover plates (17) are spliced to cover the opening.
3. The municipal sewage treatment method according to claim 2, wherein the first driving mechanism (2) comprises: the sewage treatment device comprises a fixed plate (21), a connecting plate (22), sliding grooves (23), sliding blocks (24) and supporting rods (25), wherein the fixed plate (21) is arranged on two opposite outer side walls of a sewage treatment box (1), the connecting plate (22) is arranged on two opposite sides of a cover plate (17) and is parallel to the fixed plate (21), the sliding grooves (23) are arranged on one side, close to the connecting plate (22), of the fixed plate (21), the sliding blocks (24) are installed on the sliding grooves (23) in a sliding mode, the extending direction of the sliding grooves (23) is perpendicular to a hinge shaft of the cover plate (17), one ends of the supporting rods (25) are hinged to the connecting plate (22), the other ends of the supporting rods are hinged to the corresponding sliding blocks (24), and the fixed plate (21) is provided with first driving assemblies for driving the two sliding blocks (24) to move; when the two sliding blocks (24) approach each other, the two cover plates (17) rotate towards the opening direction; when the two sliding blocks (24) are far away from each other, the two cover plates (17) rotate towards the direction far away from the opening.
4. The municipal sewage treatment method according to claim 3, wherein the first driving assembly comprises a screw rod (26) rotatably mounted in the sliding groove (23) and a first driving member (27) for driving the screw rod (26) to rotate, the screw rod (26) comprises a first transmission part (261) and a second transmission part (262), the first transmission part (261) and the second transmission part (262) are integrally formed, the thread surrounding directions of the first transmission part (261) and the second transmission part (262) are opposite, and two sliding blocks (24) located on the same fixed plate (21) are respectively mounted on the first transmission part (261) and the second transmission part (262) in a threaded fit manner.
5. The municipal sewage treatment method according to claim 4, wherein the second driving mechanism (3) comprises: stay cord (31), locate mounting panel (32) of sewage treatment case (1) lateral wall, locate mounting panel (32), rotate and install in wind-up roll (34) and the drive of mounting panel (33) wind-up roll (34) pivoted second driving piece (35), the one end and the wind-up roll (34) of stay cord (31) are connected, the other end stretches into in sewage treatment case (1) and is connected with filter screen (13).
6. The municipal sewage treatment method according to claim 5, wherein the opening edge of the sewage treatment tank (1) is provided with a mounting groove (15), a fixed pulley (16) is mounted in the mounting groove (15), and the pulling rope (31) is wound around the fixed pulley (16).
7. The municipal sewage treatment method according to claim 6, wherein the filter screen (13) is provided with a pull ring (131), and the end of the pull rope (31) far away from the wind-up roll (34) is provided with a hook (311) matched with the pull ring.
8. The municipal sewage treatment method according to claim 2, wherein the filter screen (13) is extended along the edge with a scraper (132), the thickness of the scraper (132) is gradually reduced from the side close to the filter screen (13) to the inner side wall of the sewage treatment tank (1), and the side of the scraper (132) away from the filter screen (13) abuts against the inner side wall of the sewage treatment tank (1).
9. The municipal sewage treatment method according to claim 2, wherein the bottom of the sewage treatment tank (1) is provided with a tapered step (14), and the cross-sectional area of the tapered step (14) is gradually reduced from the bottom of the sewage treatment tank (1) toward the opening.
10. The municipal sewage treatment method according to claim 2, wherein the mesh number of the filter screen (13) is 200-350 meshes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010233626.2A CN111285559A (en) | 2020-03-30 | 2020-03-30 | Municipal sewage treatment method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010233626.2A CN111285559A (en) | 2020-03-30 | 2020-03-30 | Municipal sewage treatment method |
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| CN111285559A true CN111285559A (en) | 2020-06-16 |
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| CN202010233626.2A Pending CN111285559A (en) | 2020-03-30 | 2020-03-30 | Municipal sewage treatment method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111871030A (en) * | 2020-07-30 | 2020-11-03 | 宁波市天莱园林建设工程有限公司 | Municipal sewage treatment method |
| CN112263876A (en) * | 2020-11-27 | 2021-01-26 | 金伟兵 | Sewage treatment device |
| CN113774995A (en) * | 2021-09-10 | 2021-12-10 | 濮阳市水利勘测设计院 | Water source regulation and storage system for water conservancy water supply engineering |
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| CN208034614U (en) * | 2018-03-20 | 2018-11-02 | 佛山市旭兴机电设备有限公司 | A kind of rotary electromagnetic workbench |
| CN208943565U (en) * | 2018-08-01 | 2019-06-07 | 天津安光油墨厂有限公司 | A kind of ink filter being convenient to clean |
| CN109455886A (en) * | 2018-12-28 | 2019-03-12 | 温州建源建设有限公司 | A kind of town road sewage water treatment method and processing system |
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| CN111871030A (en) * | 2020-07-30 | 2020-11-03 | 宁波市天莱园林建设工程有限公司 | Municipal sewage treatment method |
| CN112263876A (en) * | 2020-11-27 | 2021-01-26 | 金伟兵 | Sewage treatment device |
| CN113774995A (en) * | 2021-09-10 | 2021-12-10 | 濮阳市水利勘测设计院 | Water source regulation and storage system for water conservancy water supply engineering |
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