CN110448940B - Mud water treatment system and mud water treatment method for water purification plant - Google Patents
Mud water treatment system and mud water treatment method for water purification plant Download PDFInfo
- Publication number
- CN110448940B CN110448940B CN201810427754.3A CN201810427754A CN110448940B CN 110448940 B CN110448940 B CN 110448940B CN 201810427754 A CN201810427754 A CN 201810427754A CN 110448940 B CN110448940 B CN 110448940B
- Authority
- CN
- China
- Prior art keywords
- tank
- water
- sludge
- mud
- purification plant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 400
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000000746 purification Methods 0.000 title claims description 72
- 239000010802 sludge Substances 0.000 claims abstract description 194
- 238000004062 sedimentation Methods 0.000 claims abstract description 33
- 230000001105 regulatory effect Effects 0.000 claims abstract description 24
- 238000003860 storage Methods 0.000 claims abstract description 22
- 238000001914 filtration Methods 0.000 claims abstract description 10
- 239000006228 supernatant Substances 0.000 claims description 50
- 238000007599 discharging Methods 0.000 claims description 36
- 238000003756 stirring Methods 0.000 claims description 34
- 239000007788 liquid Substances 0.000 claims description 27
- 239000010865 sewage Substances 0.000 claims description 22
- 230000018044 dehydration Effects 0.000 claims description 21
- 238000006297 dehydration reaction Methods 0.000 claims description 21
- 238000005086 pumping Methods 0.000 claims description 19
- 238000001514 detection method Methods 0.000 claims description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 238000004064 recycling Methods 0.000 claims description 10
- 238000000605 extraction Methods 0.000 claims description 7
- 230000001276 controlling effect Effects 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 6
- 238000003809 water extraction Methods 0.000 claims description 5
- 238000000151 deposition Methods 0.000 claims description 4
- 239000003814 drug Substances 0.000 claims description 3
- 239000008394 flocculating agent Substances 0.000 claims description 3
- 230000000737 periodic effect Effects 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 239000002351 wastewater Substances 0.000 claims description 3
- 239000013049 sediment Substances 0.000 description 13
- 238000010276 construction Methods 0.000 description 8
- 238000000926 separation method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000001556 precipitation Methods 0.000 description 4
- 238000007790 scraping Methods 0.000 description 4
- 238000011010 flushing procedure Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003311 flocculating effect Effects 0.000 description 2
- 238000005189 flocculation Methods 0.000 description 2
- 230000016615 flocculation Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000001376 precipitating effect Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000002562 thickening agent Substances 0.000 description 2
- 230000003712 anti-aging effect Effects 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000005056 cell body Anatomy 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/0003—Making of sedimentation devices, structural details thereof, e.g. prefabricated parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/02—Settling tanks with single outlets for the separated liquid
- B01D21/04—Settling tanks with single outlets for the separated liquid with moving scrapers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/2405—Feed mechanisms for settling tanks
- B01D21/2416—Liquid distributors with a plurality of feed points
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/2444—Discharge mechanisms for the classified liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/30—Control equipment
- B01D21/32—Density control of clear liquid or sediment, e.g. optical control ; Control of physical properties
Abstract
The invention discloses a sludge water treatment system and a treatment method of a water treatment plant, wherein the sludge water treatment system of the water treatment plant comprises a plurality of water collecting wells, a combined regulating reservoir, a concentrating reservoir, a sludge balancing reservoir, a dewatering system and a sludge storage system for storing sludge, which are respectively connected with a sedimentation reservoir and a filtering reservoir of the water treatment plant.
Description
Technical Field
The invention relates to the technical field of water treatment, in particular to a mud water treatment system and a mud water treatment method for a water purification plant.
Background
Urban water is always an important component of urban life, and is sourced from urban water purification plants. The water purification plant generally needs to distribute water after mixing, flocculating, precipitating, filtering and sterilizing tap water which accords with standards, a large amount of sludge water can be generated in the precipitating and filtering processes, the main components of the sludge water are flocculating particles formed after impurities in the raw water are added with coagulant, the sludge water is generally discharged in two ways, namely a direct-discharge water body and a direct-discharge pipe network, the sludge water direct-discharge water can cause river channel and lake sediment, the river bed or the lake bottom can be too high and cause water pollution, and the sludge water direct-discharge pipe network can increase the compliance of a sewage treatment plant and also can block a sewer. The mud water accounts for 3% -5% of the daily water yield of the whole water purification plant, and the direct drainage can cause great waste of water resources.
The existing water purification plants are old in equipment and limited in site, do not have the sludge water treatment capacity, the empty site area of the plant area is limited, the construction site is limited, the construction of large-scale sludge water treatment equipment is not facilitated, the plant area of the water purification plants is constructed for a plurality of periods, underground pipelines are complex, part of pipeline conditions are unknown, the empty site can not be excavated and reformed, in addition, the general water purification plants have strict field entering and exiting regulations, the daily construction time is limited, and meanwhile, the construction period is relatively short due to the actual use requirement. How to quickly improve a sludge water treatment system in an old water purification plant so that the water resource of the water purification plant is reasonably utilized and the sewage discharge reaches the standard is a serious problem.
Disclosure of Invention
In order to overcome the defects of the prior art, one of the purposes of the invention is to provide a mud water treatment system of a water purification plant.
The second purpose of the invention is to provide a treatment method of sludge water in a water treatment plant, which is used for modifying a sludge water treatment system of an old water treatment plant.
One of the purposes of the invention is realized by adopting the following technical scheme:
a mud-water treatment system for water purification plant comprises a plurality of water collecting wells, a combined regulating tank, a concentrating tank, a sludge balancing tank, a dewatering system and a sludge storage system for storing sludge, wherein the water collecting wells, the concentrating tank, the sludge balancing tank, the dewatering system and the sludge storage system are respectively connected with a sedimentation tank and a filtering tank of the water purification plant and are steel tank bodies,
the combined type regulating tank comprises a drainage tank and a sludge discharge tank, wherein a water collecting well connected with a filtering tank of a water purification plant is connected with the drainage tank, the water collecting well connected with a sedimentation tank of the water purification plant is connected with the sludge discharge tank, a bottom sludge conveying device is arranged between the drainage tank and the sludge discharge tank, a sludge water extracting device is arranged on a sludge outlet of the sludge discharge tank, a supernatant liquid extracting device is arranged on a water outlet of the drainage tank, a first medicine adding mechanism is arranged in the sludge water extracting device and is connected with the concentration tank,
a uniform mud-water inlet structure for uniformly feeding mud water and a supernatant liquid outlet pipe are arranged in the concentration tank, the concentration tank is connected with the mud balance tank,
the sludge balance tank is internally provided with a pendulum stirring device for modulating and balancing the muddy water, the sludge balance tank is connected with the dehydration system, the dehydration system is internally provided with a second dosing mechanism, and the dehydration system is connected with the sludge storage system.
Further, a water level detection mechanism is arranged in the drainage pool and connected with the supernatant extraction device, a liquid level detection mechanism is arranged in the sludge drainage pool and connected with the sludge extraction device.
Further, the sediment conveying device comprises a truss type pumping and discharging machine and a guide rail arranged at the top end of a tank wall of the drainage tank, the truss type pumping and discharging machine moves along the guide rail, a mud suction opening of the truss type pumping and discharging machine is positioned at the bottom of the drainage tank, and a mud discharge opening is arranged above the drainage tank.
Further, the sludge discharge tank and the water discharge tank are respectively connected with the water collecting well through a separation device, the separation device comprises a sewage pipe, a water purification plant sedimentation tank sludge discharge pipe connected with the sewage pipe, a water purification plant filter tank water discharge pipe connected with the sewage pipe, a first control valve for intercepting backwash water of the water purification plant filter tank, a second control valve for intercepting muddy water of the water purification plant sedimentation tank, a water inlet pipe for connecting the sewage pipe and the water discharge tank of the regulating tank and a sludge inlet pipe for connecting the sewage pipe and the sludge discharge tank of the regulating tank, and the water inlet pipe is arranged between the first control valve and the water purification plant filter tank water discharge pipe; the mud inlet pipe is arranged between the second control valve and the mud discharge pipe of the sedimentation tank of the water purification plant, and the sedimentation tank of the water purification plant is positioned between the mud inlet pipe and the first control valve; the joint of the mud inlet pipe and the sewage pipe is provided with a third control valve for controlling muddy water to enter the mud discharging pool.
Further, even mud water structure is including setting up mud water that advances is responsible for, with advance mud water and be responsible for a plurality of mud water branch pipes of intercommunication and be located the play discharge orifice that upward sets up on mud water branch pipe in concentrated pond middle part, play discharge orifice top is covered with and is used for the interception follow mud water that jets out in the discharge orifice commutate the slip board, adjacent there is the clearance between the slip board of commutating.
Further, a groove is formed in one side, facing the outflow hole, of the rectifying slide mud plate, the groove corresponds to the outflow hole in position, and mud water ejected from the outflow hole impinges in the groove.
Further, the pendulum stirring device comprises at least one impeller, the impeller is arranged on a pendulum rod assembly, a rotating motor for driving the impeller to rotate is arranged in the pendulum rod assembly, and a driving assembly for driving the pendulum rod to swing relative to the pool wall is arranged on the pendulum rod assembly.
Further, the driving assembly comprises a first motor driving the swing rod assembly to move left and right, a second motor driving the swing rod assembly to move up and down, and a controller controlling the first motor and the second motor, wherein a first end and a second end of the controller are respectively connected with the first motor and the second motor, the first end outputs a first control signal, the second end outputs a second control signal, the conduction time of the first control signal is different from that of the second control signal, a mounting seat connected with the swing rod assembly is arranged on the tank wall, and a lifting mechanism driving the swing rod assembly to move up and down is arranged on the mounting seat.
Further, the driving assembly comprises a rotating piece and a connecting piece, wherein the rotating piece moves circumferentially on a vertical plane, the connecting piece is connected with the swinging rod assembly, the swinging rod assembly swings relative to the pool wall under the driving of the connecting piece, the connecting piece is a soft rope, a receiving and releasing mechanism used for receiving and releasing the connecting piece is arranged at the joint of the rotating piece and the connecting piece, and the swinging rod assembly moves up and down under the action of the receiving and releasing mechanism.
The second purpose of the invention is realized by adopting the following technical scheme:
a sludge water treatment method of a water purification plant comprises the following steps:
equipment preparation step, the condition of the empty space of the water purification plant is investigated, a steel pool body with corresponding size is manufactured, the pool body is transported to each empty space, then the pool body is assembled through a pipeline,
the steel tank body comprises a plurality of water collecting wells respectively connected with a sedimentation tank of the water purification plant and a filter tank of the water purification plant, a concentration tank for concentrating muddy water, a sludge balance tank for homogenizing muddy water, a dehydration system and a sludge storage system;
an adjusting step of changing an original wastewater tank of a water purification plant into a combined adjusting tank, dividing the combined adjusting tank into a drainage tank and a sludge discharge tank, discharging backwash water of the filter tank into the drainage tank by a water collecting well connected with the filter tank of the water purification plant, discharging sludge discharge water into the sludge discharge tank by a water collecting well connected with a sedimentation tank of the water purification plant, sucking bottom sludge at the bottom of the drainage tank into the sludge discharge tank, recycling supernatant at the upper part, discharging muddy water in the sludge discharge tank into a concentration tank, and adding a flocculating agent into the muddy water during the period;
a concentration step, namely enabling the muddy water to enter a concentration tank of the steel tank body, uniformly feeding water, depositing mud and separating the muddy water in the concentration tank through a uniform mud feeding structure, recycling supernatant fluid at the upper part of the concentration tank, and discharging mud at the lower part into a mud balance tank;
and (3) carrying out sludge balance and dehydration, namely uniformly stirring the sludge entering a sludge balance tank through a pendulum stirring device, then conveying the balanced sludge to a dehydration system for mechanical dehydration, and storing sludge blocks in a sludge storage system for periodic outward transportation.
Compared with the prior art, the invention has the beneficial effects that:
(1) Most of treatment equipment in the sludge water treatment system is made of steel, can be customized according to the actual empty space of the water purification plant, and then is transported to the site for assembly, so that the reconstruction period is greatly shortened, the occupied area is reduced, the large-scale reconstruction of the water purification plant is avoided, and the construction of the sludge water treatment system is completed while the normal operation of the water purification plant is ensured;
(2) The supernatant is recycled in the combined regulating tank and the concentrating tank, so that the water utilization rate is improved;
(3) By utilizing the uniform mud water inlet structure of the concentration tank, full-section water inlet is realized, the problem of short water inlet flow is overcome, the uniformity of water inlet is ensured, the concentration efficiency is improved, and mud water partition is realized;
(4) Utilize pendulum-type agitating unit for mud water modulation balance speed in mud balancing tank guarantees that mud concentration in the mud balancing tank is unanimous, for traditional fixed point directional agitating unit, reaches better stirring effect through less agitating unit, effectively reduces the cost of whole mud water treatment system that arranges.
Drawings
FIG. 1 is a schematic diagram of a processing system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a combined type adjusting tank according to an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of A-A in FIG. 2;
FIG. 4 is a schematic structural view of a sediment transport device according to an embodiment of the present invention;
FIG. 5 is a schematic view showing the internal structure of a concentration tank according to an embodiment of the present invention;
FIG. 6 is a schematic top view of a concentrating tank according to an embodiment of the present invention;
FIG. 7 is a schematic cross-sectional view of the structure B-B of FIG. 6;
FIG. 8 is a schematic structural view of a uniform slurry-feeding structure according to an embodiment of the present invention;
FIG. 9 is a schematic cross-sectional view of the structure C-C of FIG. 8;
FIG. 10 is a schematic view showing the structure of a sludge balancing tank according to an embodiment of the present invention;
FIG. 11 is a schematic cross-sectional view of D-D in FIG. 10;
FIG. 12 is a schematic view of a pendulum stirring device according to an embodiment of the present invention
In the figure:
10. a sedimentation tank of a water purification plant; 11. filtering pond of water purifying plant; 12. a water inlet of the water purification plant;
20. a water collection well;
30. a combined regulating tank; 31. a mud discharging pool; 311. supernatant extraction means; 312. a water level detection mechanism; 313. supernatant flow control means; 32. a drainage pool; 321. a mud water extraction device; 322. a liquid level detection mechanism; 323. a mud pipe; 324. a first dosing mechanism; 325. a stirring device; 33. a bottom mud conveying device; 331. truss type pumping mud scraper; 332. a guide rail; 333. a mud suction port; 334. a mud discharging port; 335. a mud scraping plate; 336. a mud scraping assembly; 337. a work bridge; 338. a suction pipe; 34. a water inlet device; 341. a sewage pipe; 342. mud discharging pipe of sedimentation tank of water purifying plant; 343. filtering pond drain pipe of water purification plant; 344. a first control valve; 345. a second control valve; 346. a water inlet pipe; 347. a mud inlet pipe; 348. a third control valve; 349. a switching well; 35. a control center;
40. a concentration tank; 411. an upper part; 412. a middle part; 413. a lower part; 414. a cell body; 415. a chute; 42. a water collection tank; 421. a supernatant return line; 422. an overflow pipe; 423. a groove is formed; 424. serrated weir plates; 43. a mud water feeding structure is uniform; 431. a mud water inlet main pipe; 432. a mud-water inlet branch pipe; 433. a discharge orifice; 434. a rectifying slide plate; 435. a gap; 436. a groove; 44. a muddy water inlet pipe; 45. a central drive thickener; 46. stirring and concentrating the grid bars;
50. a sludge balancing tank; 51. an impeller; 511. a rotating motor; 52. a swing rod assembly; 521. a water pressure detecting device; 53. a drive assembly; 531. a rotating member; 532. a connecting piece; 533. a retracting mechanism; 54. a mounting base; 541. a universal joint; 542. a lifting mechanism; 543. a track;
60. a dewatering system; 61. a second dosing mechanism;
70. a sludge storage system.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and detailed description, wherein it is to be understood that, on the premise of no conflict, the following embodiments or technical features may be arbitrarily combined to form new embodiments.
In the description of the present invention, it should be noted that, for the azimuth words such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the azimuth and positional relationships are based on the azimuth or positional relationships shown in the drawings, it is merely for convenience of describing the present invention and simplifying the description, and it is not to be construed as limiting the specific scope of protection of the present invention that the device or element referred to must have a specific azimuth configuration and operation.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first", "a second" or "a second" feature may explicitly or implicitly include one or more such feature, and in the description of the invention, the meaning of "a number" is two or more, unless otherwise specifically defined.
In the present invention, unless explicitly stated and limited otherwise, the terms "assembled," "connected," and "connected" are to be construed broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; can be directly connected or connected through an intermediate medium, and can be communicated with the inside of the two elements. 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.
As shown in figure 1, a sludge water treatment system of a water purification plant comprises a plurality of water collecting wells 20, a combined regulating reservoir 30, a concentration reservoir 40, a sludge balance reservoir 50, a dewatering system 60 and a sludge storage system 70 for storing sludge, wherein the water collecting wells 20, the concentration reservoir 40, the sludge balance reservoir 50, the dewatering system 60 and the sludge storage system 70 are respectively connected with a sedimentation reservoir 10 and a filter 11 of the water purification plant, the water collecting wells 20, the concentration reservoir 40, the sludge balance reservoir 50, the dewatering system 60 and the sludge storage system 70 are steel tanks, most of treatment equipment in the sludge water treatment system of the embodiment is made of steel, can be customized according to the actual empty area of the water purification plant and then transported to a site for assembly, so that the reconstruction period is greatly shortened, the occupied area is reduced, the large-scale reconstruction of the water purification plant is avoided, and the establishment of the sludge water treatment system is completed while the normal operation of the water purification plant is ensured.
The combined type regulating tank 30 comprises a sludge discharge tank 31 and a drainage tank 32, a water collecting well 20 connected with a water purifying plant filter tank 11 is connected with the sludge discharge tank 31, the water collecting well 20 connected with a water purifying plant sedimentation tank 10 is connected with the drainage tank 32, a bottom sludge conveying device 33 is arranged between the sludge discharge tank 31 and the drainage tank 32, a mud water extracting device 321 is arranged on a mud outlet of the drainage tank 32, a supernatant liquid extracting device 311 is arranged on a water outlet of the sludge discharge tank 31, a first dosing mechanism 324 is arranged in the mud water extracting device 321 and is connected with a concentration tank 40,
the concentration tank 40 is internally provided with a uniform mud-feeding water structure 43 for uniformly feeding mud water and a supernatant return pipe 421, the concentration tank 40 is connected with the sludge balance tank 50, full-section water feeding is realized by utilizing the uniform mud-feeding water structure 43 of the concentration tank 40, the problem of short water feeding flow is solved, the water feeding uniformity is ensured, the concentration efficiency is improved, and mud water partition is realized.
Meanwhile, the recycling of the supernatant is realized in the parts of the combined type regulating tank 30 and the concentration tank 40, and the water utilization rate is improved.
The sludge balance tank 50 is provided with a pendulum stirring device 325 for modulating and balancing the muddy water, the sludge balance tank 50 is connected with a dehydration system 60, the dehydration system 60 is provided with a second dosing mechanism 61, and the dehydration system 60 is connected with a sludge storage system 70. Utilize pendulum-type agitating unit 325 for the mud water modulation balance speed of mud balancing tank 50 guarantees that the mud concentration in the mud balancing tank 50 is unanimous, and relative to traditional fixed point directional agitating unit 325, through less agitating unit 325, reaches better stirring effect, effectively reduces the cost of whole mud water treatment system.
Each of which will now be described in detail with reference to the accompanying drawings.
As shown in fig. 2-4, the combined type regulating tank 30 of the present invention comprises a regulating tank body and a water inlet device 34, the regulating tank body comprises a sludge discharge tank 31 for receiving backwash water of the filtering tank 11 of the water purification plant and a water discharge tank 32 for receiving the sludge discharge water of the sedimentation tank 10 of the water purification plant, a bottom sludge conveying device 33 is connected between the sludge discharge tank 31 and the water discharge tank 32, compared with the existing regulating tank, the regulating tank of the present embodiment has an automatic control function, specifically, the sludge discharge tank 31 and the water discharge tank 32 are arranged side by side, a sludge water extracting device 321 is arranged on a sludge outlet of the water discharge tank 32, a supernatant liquid extracting device 311 is arranged on a water outlet of the sludge discharge tank 31, a water level detecting mechanism 312 is arranged in the sludge discharge tank 31, the water level detecting mechanism 312 is connected with the supernatant liquid extracting device 311, a water level detecting mechanism 322 is arranged in the water discharge tank 32, and the water level detecting mechanism 322 is connected with the water extracting device 321, and the flow rate is not uniform, therefore, when the bottom sludge in the sludge discharge tank 31 is extracted into the water discharge tank 32, a clear supernatant liquid is left, the supernatant liquid is detected to be sent to the supernatant liquid extracting device 311, and the supernatant liquid is recovered to the supernatant liquid system, and the supernatant liquid is recovered to the supernatant liquid is normally recovered, and the supernatant liquid is recovered; and when the liquid level detection mechanism 322 detects that the liquid level in the drainage tank 32 reaches the set value, the muddy water extraction device 321 starts to work, the muddy water is transferred into the concentration tank 40, the liquid level is prevented from being too high, the muddy water overflows into the drainage tank 32, the equipment automatically operates, the automatic control is performed according to the water level condition of the regulating tank, no personnel are required to perform on-site operation, and the workload of original personnel is not required to be additionally increased. In addition, a stirring device 325 may be provided in the drain tank 32 for maintaining the slurry balance in the tank, preventing the bottom from depositing sludge, resulting in a reduced capacity of the drain tank 32. The supernatant flow controller 313 is connected to the supernatant extractor 311.
In addition, since the regulating reservoir is divided into the sludge discharge reservoir 31 and the water discharge reservoir 32, it is also necessary to specially provide the water inflow device 34, specifically, the water outflow device includes a foul water pipe 341, a water plant sedimentation tank sludge discharge pipe 342 connected to the foul water pipe 341, and a water plant filter discharge pipe 343 connected to the foul water pipe 341, a first control valve 344 for intercepting backwash water of the water plant filter 11, a first control valve 344 for intercepting muddy water of the water plant sedimentation tank 10, a water inflow pipe 346 for connecting the foul water pipe 341 and the sludge discharge reservoir 31 of the regulating reservoir, and a water inflow pipe 347 for connecting the foul water pipe 341 and the water discharge reservoir 32 of the regulating reservoir, the water inflow pipe 346 being disposed between the first control valve 344 and the water plant filter discharge pipe 343; the mud inlet pipe 347 is arranged between the second control valve 345 and the mud discharging pipe 342 of the settling tank of the water purification plant, and the settling tank 10 of the water purification plant is arranged between the mud inlet pipe 347 and the first control valve 344; a third control valve 348 for controlling the muddy water to enter the drain tank 32 is provided at the junction of the mud inlet pipe 347 and the sewage pipe 341. The muddy water entering the drainage tank 32 and the mud discharging tank 31 is controlled by utilizing a plurality of control valves, so that the separation of the muddy water from the backwash water can be realized, the emptying maintenance of the drainage tank 32 and the mud discharging tank 31 can be realized, and the emergency discharge of part of muddy water can be realized under the condition that the recycling of backwash water of the filter tank and the normal operation of a water plant are not influenced.
More specifically, the interception of the backwash water is achieved by closing the first control valve 344 and the backwash water is introduced into the sewage pipe 341 from the water purification plant filter drain 343 and then into the sludge discharge tank 31; in addition, by closing the first control valve 344 and the second control valve 345 and opening the third control valve 348, the interception of the sludge water is realized, the sludge water is discharged from the sludge discharge pipe 342 of the sedimentation tank of the water purification plant, enters the sewage pipe 341 and then enters the water discharge tank 32, and the aim of treating the sludge water and the sewage water is realized; in addition, if the adjustment tank is to be overhauled, the third control valve 348 can be closed, the first control valve 344 and the second control valve 345 can be opened, the sludge discharge tank 31 and the water discharge tank 32 can not receive the filter back wash water and the sedimentation tank sludge discharge water any more, and the normal operation of the water plant is not affected. Because the washing time of the settling tank 10 of the water purification plant is inconsistent with the backwashing time of the filter tank, and the water amount is different, the sludge discharge amount of the settling tank 10 of the water purification plant is far beyond the available volume of the water discharge tank 32 when washing and large sludge discharge is carried out, and thus the sludge discharge tank 31 needs emergency discharge while recycling, specifically, the second control valve 345 is opened, the first control valve 344 and the third control valve 348 are closed, and the washing water and the large sludge discharge water enter the municipal pipe network through the sewage pipe. After the muddy water in the sludge discharge tank 31 is settled, part of muddy water in the water discharge tank 32 also enters the concentration tank 40, so that the bottom sludge in the sludge discharge tank 31 can be conveyed into the water discharge tank 32 by the bottom sludge conveying device 33, and at the moment, the water level detecting mechanism 312 in the sludge discharge tank 31 feeds back a signal to control the supernatant extracting device 311 by monitoring the water level change, so that separation of the supernatant and the bottom sludge is realized.
Considering the original construction facilities and site conditions of the water works, a conversion well 349 is arranged at the joint of the mud inlet pipe 347 and the sewage pipe 341, the third control valve 348 is positioned in the conversion well 349, the third control valve 348 is opened, and the mud water is led into the drainage tank 32 through the conversion function of the conversion well 349. More specifically, the third control valve 348 is a butterfly valve to facilitate regulation of the flow of mud.
For the position setting of the first control valve 344, the first control valve 344 in this embodiment is disposed at the connection position between the water inlet pipe 346 and the sewage pipe 341, and may be set as a stop valve to prevent the back flushing of the sludge water into the water discharge tank, or may be set as a gate valve to open the first control valve 344, so that the back flushing water is ensured to be discharged into the water discharge tank 32, the overflow phenomenon of the sludge discharge tank 31 is prevented, and the normal operation of the water purification plant and the filter tank is not disturbed.
The water level detection mechanism 312 in the sludge discharge tank 31 and the liquid level detection mechanism 322 in the water discharge tank 32 are ultrasonic liquid level meters, in practical application, the ultrasonic liquid level meter comprises a control center 35, the control center 35 is a PLC control cabinet, the water level detection mechanism 312 and the liquid level detection mechanism 322 are connected with the control center 35, the mud water extraction device 321 is a submersible pump, the ultrasonic liquid level meters monitor the water levels in the sludge discharge tank 31 and the water discharge tank 32, signals are fed back to the PLC control cabinet when reaching a certain water level, then a submersible pump switch is started to pump water, signals are fed back to the PLC control cabinet when the submersible pump descends to a set water level, and then the submersible pump is closed and is connected with the concentration tank 40. The supernatant extraction device 311 is in the same principle as the supernatant extraction device 311, and the supernatant extraction device 311 is a recovery water pump and is connected with the water inlet 12 of the water purification plant.
The bottom mud conveying device 33 used in this embodiment includes a truss type pumping mud scraper 331 and a guide rail 332 disposed at the top end of the wall of the mud discharging tank 31, the truss type pumping mud scraper 331 moves along the guide rail 332, a mud suction opening 333 of the truss type pumping mud scraper 331 is located at the bottom of the mud discharging tank 31, and a mud discharge opening 334 is disposed above the water discharging tank 32. The truss type pumping sludge scraper 331 moves back and forth along the guide rail 332, absorbs the bottom sludge at the bottom of the sludge discharge tank 31, and discharges the bottom sludge into the water discharge tank 32 through the sludge discharge port 334, so that separation of supernatant fluid and bottom sludge is realized.
More specifically, the bottom of the truss type pumping sludge scraper 331 is provided with a plurality of sludge scrapers 335, and adjacent sludge scrapers 335 are inclined toward the sludge suction opening 333 located in the middle, and the truss type pumping sludge scraper 331 includes a mounting frame for mounting the sludge scrapers 335. When the truss type pumping mud scraper 331 moves, the mud scraping plate 335 concentrates the bottom mud to the mud sucking opening 333, so that the mud sucking opening 333 is convenient to suck, the number of the mud sucking openings 333 is reduced, and the mud sucking efficiency is improved.
The mud structure is scraped to another kind, and truss-like pumping mud scraper 331 bottom is equipped with the rhombus and scrapes mud subassembly 336, and suction port 333 is located between two mud subassemblies 336, and truss-like pumping mud scraper 331 is including being used for installing the mounting bracket of scraping mud subassembly 336, makes things convenient for truss-like pumping mud scraper 331 to all can scrape mud when the back and forth movement, improves and scrapes mud efficiency, scrapes mud effect better.
Because of the large area of the conditioning tank, for convenient maintenance, a truss type pumping sludge scraper 331 crossing the sludge discharge tank 31 can be utilized, and a working bridge 337 is arranged at the top end of the truss type pumping sludge scraper.
In addition, the amount of sediment in the sediment tank 31 may not be large, and the sediment is inconvenient to move in the sediment tube 338 of the truss pump suction dredger 331, so that two adjacent sediment suction ports 333 in the embodiment are connected with the same sediment suction tube 338, the sediment suction tube 338 is connected with the sediment discharge port 334, the material of the truss pump suction dredger 331 is saved, and the sediment is collected in advance, and is conveniently conveyed to the sediment discharge port 334 and enters the drainage tank 32.
Because the drainage tank 32 is connected with the concentration tank 40, in order to accelerate the treatment process and improve the sludge precipitation rate, the sludge-water extraction device 321 comprises a sludge discharge pipe 323 connected with the concentration tank 40, a first dosing mechanism 324 is arranged in the sludge discharge pipe 323, the first dosing mechanism 324 comprises a pipeline mixer, and the flocculant and the sludge are mixed in the pipeline mixer.
As shown in fig. 5 to 9, the uniform mud-water feeding structure 43 of the present invention divides the concentration tank 40 into an upper part 411 and a lower part 413, and after mud water enters the concentration tank 40, the mud water sequentially passes through a natural sedimentation area, an inclined tube 415 sedimentation area and a supernatant water collecting area, and the lower part 413 of the concentration tank 40 is provided with a central transmission thickener 45 and a stirring concentration grid 46 to concentrate bottom mud.
In order to ensure uniformity of mud water and overcome the problem of short forward water flow, the uniform mud water inlet structure 43 of the invention is respectively communicated with a mud water inlet pipe 44 and a concentration tank 40, and comprises a mud water inlet main pipe 431 arranged in the middle part 412 of the concentration tank 40, a plurality of mud water inlet branch pipes 432 communicated with the mud water inlet main pipe 431 and outflow holes 433 arranged upwards on the mud water inlet branch pipes 432, a rectifying slip plate 434 for intercepting mud water ejected from the outflow holes 433 is covered above the outflow holes 433, and gaps 435 exist between adjacent rectifying slip plates 434.
Utilize setting up in advance mud water main pipe 431 and with advance mud water main pipe 431 intercommunication a plurality of mud water branch pipes 432 of mud water main pipe 431, then, the mud water is followed the efflux that is located the outflow hole 433 that sets up on advance mud water branch pipe 432, striking on setting up the rectification slip mud board 434 of outflow hole 433 top, the mud water is broken up, the whereabouts, then under the promotion of the mud water of follow-up efflux, turn to upward flow, mud water changes the direction many times, change the direction and equally divide one side at every turn, and mud water evenly distributed is on whole plane afterwards, also make the operation flow of mud water lengthen simultaneously, the speed gradient is also changing always, with the mud water contact time of higher concentration in the concentration pond 40 longer, increase granule collision's chance, flocculation effect and sedimentation concentrated efficiency have been improved. And the precipitated water rises from the gap 435 between the rectifying slip plates 434 to the precipitation area of the inclined tube 415 to be precipitated again, and the supernatant fluid is formed to enter the supernatant fluid collecting area, enters the water collecting tank 42 and is then recycled. In the process, the outflow speed is required, the realization of the speed can be realized by arranging a water pump and limiting the aperture of the outflow hole 433, and the aperture range of the outflow hole 433 is 9 mm-16 mm.
More specifically, the rectifying slide plate 434 is provided with a groove 436 on one side facing the outflow hole 433, the groove 436 corresponds to the position of the outflow hole 433, the muddy water ejected from the outflow hole 433 is impacted in the groove 436, the impact angle of the muddy water is different due to the arrangement of the groove 436, the dispersion angle and the speed after impact are also different, the contact time with the muddy water with higher concentration in the pond is prolonged, the probability of particle collision is increased, the flocculation effect and the sedimentation concentration efficiency are improved, the shape of the groove 436 has various forms, a chute, an arc groove and the like, preferably, the groove 436 is an inverted V-shaped groove, and the angle is generally larger than 45 °.
In addition, in order to prevent the muddy water injected from the outflow hole 433 from contacting the rectifying slip plate 434, the rectifying slip plate 434 is an inverted "V" shaped long strip plate, which is covered over each muddy water inlet branch 432, ensuring that each water flow is impacted and redirected at least once.
Meanwhile, in order to realize uniform water inflow of the full section, a plurality of mud-water inlet branch pipes 432 are arranged on two sides of the mud-water inlet main pipe 431 in parallel and distributed in an antenna shape, and each part of the horizontal plane of the middle part 412 of the concentration tank 40 is involved, and each mud-water inlet branch pipe 432 is covered with a rectifying and sliding plate 434 to ensure that the mud water entering the device is uniformly distributed on the whole section.
In order to shorten the construction time of the concentration tank 40, the tank body 414 of the concentration tank 40 of this embodiment is of an integrated steel structure, and is transported to a desired place after being manufactured, and then the internal structure and the equipment are assembled, thereby greatly shortening the construction period of the sludge water treatment system of the water purification plant. Due to the limitation of working environment, the surface of the tank body 414 of the concentration tank 40 is subjected to corrosion prevention treatment, so that the anti-aging ceramic performance is realized, the service life is long, and the maintenance is convenient.
After the mud water enters from the uniform mud water inlet structure 43, the mud water is gradually precipitated and layered, the upper part 411 of the high-efficiency concentration tank 40 is provided with an inclined tube 415, the rectifying slide plate 434 is positioned below the inclined tube 415, and the mud water entering the inclined tube 415 is further precipitated, and the area is a precipitation area of the inclined tube 415.
After the muddy water is further precipitated by the inclined tube 415, the impurity content such as suspended matters is greatly reduced and reaches the recovery standard, so that a supernatant collecting area is arranged above the precipitation area of the inclined tube 415, a collecting tank 42 is arranged in the supernatant collecting area, the collecting tank 42 is positioned above the inclined tube 415, and a supernatant return pipe 421 and an overflow pipe 422 are arranged in the collecting tank 42. The supernatant enters the water collection tank 42 and then enters the supernatant return pipe 421 for recycling, and when the supernatant is excessive, the excessive supernatant can be discharged from the overflow pipe 422 in order to avoid overflow.
In order to increase the collecting surface of the supernatant, two sides of the water collecting tank 42 are communicated with a plurality of branch tanks 423, the branch tanks 423 comprise saw-tooth-shaped weir plates 424 arranged at two sides, the supernatant is not washed when being lower than saw teeth of the weir plates, and the weir plates only play a role in retaining water; if the water level continuously rises and is higher than the saw teeth, the supernatant enters the branch groove 423 and then is gathered into the water collecting groove, so that uniform water collection is ensured.
As shown in fig. 10-12, the pendulum stirring device 325 of the present invention includes, in addition to the stirring impeller 51 of the conventional stirring device 325, a pendulum rod assembly 52 driving the impeller 51 to swing, where the impeller 51 in this embodiment can normally rotate under the drive of the rotation motor 511, and at the same time swings at any angle under the drive of the pendulum rod assembly 52, so as to increase the stirring area, reduce dead angles, and improve the stirring efficiency. In order to facilitate the installation of the swing rod assembly 52, the tank wall is provided with an installation seat 54 connected with the swing rod assembly 52, and in addition, in order to ensure the flexibility of the swing rod assembly 52 and the discretionary swing angle, the swing rod assembly 52 is connected with the installation seat 54 through a universal connector 541.
The swing mode of the swing rod assembly 52 is divided into a front-back and left-right swing mode of a fixed point and an overall up-down movement mode.
For the implementation of the front-back and left-right swing of the fixed point, in an embodiment, the driving mechanism includes a first motor driving the swing rod assembly 52 to move left and right, a second motor driving the swing rod assembly 52 to move up and down, and a controller controlling the first motor and the second motor, where a first end and a second end of the controller are respectively connected with the first motor and the second motor, the first end outputs a first control signal, the second end outputs a second control signal, and the conduction time of the first control signal is different from the conduction time of the second control signal. By outputting the first control signal and the second control signal with different on-time, the up-down swing and the left-right swing have different running time, so that the swing running track of the swing rod assembly 52 is continuously changed, the stirring in a large range is realized, the stirring area has no dead zone, and the stirring efficiency is improved. More specifically, one of the first control signal and the second control signal is continuously conducted, the other of the first control signal and the second control signal is cut off for a preset time according to a preset period in the conducting process, the first motor and the second motor independently operate, the up-and-down swing and the left-and-right swing have different operation times, the swing track is continuously changed, and the wide-range stirring is realized.
In this embodiment, the overall up-and-down movement can be achieved by the lifting mechanism 542 on the mounting seat 54, more specifically, the lifting rail 543 is arranged on the pool wall, the lifting motor is arranged on the mounting seat 54, the mounting seat 54 is in sliding fit with the lifting rail 543, the lifting motor drives the swing rod assembly 52 to move along the lifting rail 543, and further, the lifting rail 543 can be designed into a triangular function type valley-peak waveform to be arranged around the pool wall.
In another embodiment, the mechanical structure may be used to drive the swing rod assembly 52 to swing, which is specifically implemented as follows: the driving component 53 comprises a rotating piece 531 which moves circumferentially on a vertical plane and a connecting piece 532 which connects the rotating piece 531 and the swinging rod component 52, and the swinging rod component 52 swings relative to the pool wall under the driving of the connecting piece 532. As shown in fig. 2, in order to facilitate the rotation of the rotating member 531, the rotating member 531 is disposed above the tank wall and continuously rotates, and is connected with the swinging component through the connecting member 532, so that the swinging component is driven to swing during the rotation of the rotating member 531, and thus large-area stirring is achieved, at this moment, the swinging rod component 52 may not be connected with the tank wall, and the swinging component can swing at any angle under the action of the rotating impeller 51 and the rotating member 531, so that the stirring area is enlarged, and also can be connected with the mounting seat 54 on the tank wall, and fixed-point turning stirring is achieved.
In this way, the overall up-and-down movement mainly depends on the retracting mechanism 533, more specifically, the connecting piece 532 is a soft rope, the retracting mechanism 533 for receiving and transmitting the connecting piece 532 is provided at the connection part of the rotating piece 531 and the connecting piece 532, and the swing rod assembly 52 moves up-and-down under the action of the receiving and transmitting mechanism. By the retraction and extension of the connecting piece 532, the whole swing rod assembly 52 and the impeller 51 are lifted and lowered integrally, a track 543 is arranged in the concentration tank 40, and the swing rod assembly 52 is connected with the track 543 in a sliding manner and moves up and down along the track 543.
Meanwhile, in order to determine the swing distance and the lifting distance of the swing rod assembly 52, the swing rod assembly 52 is provided with a water pressure detection device 521, the water pressure detection device 521 is connected with the driving mechanism, and when the water pressure detection device 521 detects that the water pressure is low, the driving mechanism stops rising, reduces the height, and simultaneously continuously swings to prevent the swing rod assembly 52 from idling.
The sludge balance tank 50 comprises a plurality of pendulum stirring devices 325, wherein the pendulum stirring devices 325 are arranged on the inner wall of the sludge balance tank 50 in a dispersing way, so that the mud water in the sludge balance tank 50 is stirred in an all-angle and all-directional way, the mud water is uniformly mixed and homogenized, and the consistency of the concentration of the sludge in the whole tank is ensured without sedimentation. The number of stirring devices 325 can be reduced relative to conventional fixed-point directional stirring devices 325, and as shown by practical tests, the number of devices in each tank is equivalent to 1/3 of that of the conventional process.
The dewatering system 60 comprises a second pressurizing mechanism and 2 centrifugal dewatering machines, wherein the single machine capacity is 12-15m < 3 >/h, the motor power N=22/7.5 kW, and the variable frequency speed is regulated. The rotating speed of the rotating drum is max4000r/min, and the separation factor is 3200. The equipment matched with the dewatering machine room comprises a sludge feeding screw pump, a sludge cutter, an automatic dosing and medicine dissolving device, a dosing screw pump, a flushing pump, a screw conveyor and the like. The solid content of the discharged mud reaches 20-25%.
The sludge storage system 70 comprises a sludge storage bin for storing dehydrated sludge for 5-7 days; the storage bin adopts a square flat bottom structure, the stored sludge automatically falls down only by gravity, the specification of the storage bin is 4000×3000×3600mm, and the effective volume is 30m3; the matched facilities are as follows: the hydraulic driving sliding frame arch breaking device, a discharging screw, a hydraulic gate valve, a hydraulic power station, an electric control system and the like.
Based on the system, the sludge water treatment method of the water purification plant is designed and comprises the following steps:
equipment preparation step, the condition of the empty space of the water purification plant is investigated, a steel pool body with corresponding size is manufactured, the pool body is transported to each empty space, then the pool body is assembled through a pipeline,
the steel tank body comprises a plurality of water collecting wells respectively connected with a sedimentation tank of the water purification plant and a filter tank of the water purification plant, a concentration tank for concentrating muddy water, a sludge balance tank for homogenizing muddy water, a dehydration system and a sludge storage system;
an adjusting step of changing an original wastewater tank of a water purification plant into a combined adjusting tank, dividing the combined adjusting tank into a drainage tank and a sludge discharge tank, discharging backwash water of the filter tank into the drainage tank by a water collecting well connected with the filter tank of the water purification plant, discharging sludge discharge water into the sludge discharge tank by a water collecting well connected with a sedimentation tank of the water purification plant, sucking bottom sludge at the bottom of the drainage tank into the sludge discharge tank, recycling supernatant at the upper part, discharging muddy water in the sludge discharge tank into a concentration tank, and adding a flocculating agent into the muddy water during the period;
a concentration step, namely enabling the muddy water to enter a concentration tank of the steel tank body, uniformly feeding water, depositing mud and separating the muddy water in the concentration tank through a uniform mud feeding structure, recycling supernatant fluid at the upper part of the concentration tank, and discharging mud at the lower part into a mud balance tank;
and (3) carrying out sludge balance and dehydration, namely uniformly stirring the sludge entering a sludge balance tank through a pendulum stirring device, then conveying the balanced sludge to a dehydration system for mechanical dehydration, and storing sludge blocks in a sludge storage system for periodic outward transportation.
The above embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present invention are intended to be within the scope of the present invention as claimed.
Claims (3)
1. A mud-water treatment system for a water purification plant is characterized by comprising a plurality of water collecting wells, a combined regulating tank, a concentration tank, a sludge balancing tank, a dewatering system and a sludge storage system for storing sludge, wherein the water collecting wells, the concentration tank, the sludge balancing tank, the dewatering system and the sludge storage system are respectively connected with a sedimentation tank and a filtering tank of the water purification plant and are steel tank bodies,
the combined type regulating tank comprises a drainage tank and a sludge discharge tank, wherein a water collecting well connected with a filtering tank of a water purification plant is connected with the drainage tank, the water collecting well connected with a sedimentation tank of the water purification plant is connected with the sludge discharge tank, a bottom sludge conveying device is arranged between the drainage tank and the sludge discharge tank, a sludge water extracting device is arranged on a sludge outlet of the sludge discharge tank, a supernatant liquid extracting device is arranged on a water outlet of the drainage tank, a first medicine adding mechanism is arranged in the sludge water extracting device and is connected with the concentration tank,
a uniform mud-water inlet structure for uniformly feeding mud water and a supernatant liquid outlet pipe are arranged in the concentration tank, the concentration tank is connected with the mud balance tank,
the sludge balance tank is internally provided with a pendulum stirring device for modulating and balancing the muddy water, the sludge balance tank is connected with the dehydration system, the dehydration system is internally provided with a second dosing mechanism, and the dehydration system is connected with the sludge storage system;
the mud discharging tank and the water discharging tank are respectively connected with the water collecting well through a separating device, the separating device comprises a sewage pipe, a water purifying plant sedimentation tank mud discharging pipe connected with the sewage pipe, a water purifying plant filter tank drain pipe connected with the sewage pipe, a first control valve for intercepting backwash water of the water purifying plant filter tank, a second control valve for intercepting muddy water of the water purifying plant sedimentation tank, a water inlet pipe for connecting the sewage pipe and the water discharging tank of the regulating tank and a mud inlet pipe for connecting the sewage pipe and the mud discharging tank of the regulating tank, and the water inlet pipe is arranged between the first control valve and the water purifying plant filter tank drain pipe; the mud inlet pipe is arranged between the second control valve and the mud discharge pipe of the sedimentation tank of the water purification plant, and the sedimentation tank of the water purification plant is positioned between the mud inlet pipe and the first control valve; a third control valve for controlling muddy water to enter the sludge discharge tank is arranged at the joint of the sludge inlet pipe and the sewage pipe;
the uniform mud-water inlet structure comprises a mud-water inlet main pipe arranged in the middle of the concentration tank, a plurality of mud-water inlet branch pipes communicated with the mud-water inlet main pipe and an upward-arranged outlet hole positioned on the mud-water inlet branch pipes, a rectifying slide plate used for intercepting mud water ejected from the outlet hole is covered above the outlet hole, and a gap exists between every two adjacent rectifying slide plates;
a groove is formed in one side, facing the outflow hole, of the rectifying slide plate, the groove corresponds to the outflow hole in position, and muddy water ejected from the outflow hole impinges in the groove;
the pendulum stirring device comprises at least one impeller, the impeller is arranged on a pendulum rod assembly, a rotating motor for driving the impeller to rotate is arranged in the pendulum rod assembly, and a driving assembly for driving the pendulum rod to swing relative to the pool wall is arranged on the pendulum rod assembly;
the driving assembly comprises a first motor for driving the swing rod assembly to move left and right, a second motor for driving the swing rod assembly to move up and down, and a controller for controlling the first motor and the second motor, wherein the first end and the second end of the controller are respectively connected with the first motor and the second motor, the first end outputs a first control signal, the second end outputs a second control signal, the conduction time of the first control signal is different from that of the second control signal, a mounting seat connected with the swing rod assembly is arranged on the tank wall, and a lifting mechanism for driving the swing rod assembly to move up and down is arranged on the mounting seat;
the driving assembly comprises a rotating piece and a connecting piece, wherein the rotating piece moves circumferentially on a vertical plane, the connecting piece is used for connecting the rotating piece and the swing rod assembly, the swing rod assembly swings relative to the pool wall under the drive of the connecting piece, the connecting piece is a soft rope, a retracting mechanism used for retracting the connecting piece is arranged at the joint of the rotating piece and the connecting piece, and the swing rod assembly moves up and down under the action of the retracting mechanism;
the bottom mud conveying device comprises a truss type pumping mud discharging machine and a guide rail arranged at the top end of a tank wall of the drainage tank, the truss type pumping mud discharging machine moves along the guide rail, a mud sucking port of the truss type pumping mud discharging machine is positioned at the bottom of the drainage tank, and a mud discharging port is arranged above the mud discharging tank.
2. The sludge water treatment system of water purification plant as claimed in claim 1, wherein a water level detection mechanism is provided in the water draining tank, the water level detection mechanism is connected with a supernatant extraction device, a liquid level detection mechanism is provided in the sludge draining tank, and the liquid level detection mechanism is connected with the sludge water extraction device.
3. A method for treating sludge from a water treatment plant, wherein the method employs the water treatment plant sludge treatment system as claimed in any one of claims 1 to 2, the method comprising the steps of:
equipment preparation step, the condition of the empty space of the water purification plant is investigated, a steel pool body with corresponding size is manufactured, the pool body is transported to each empty space, then the pool body is assembled through a pipeline,
the steel tank body comprises a plurality of water collecting wells respectively connected with a sedimentation tank of the water purification plant and a filter tank of the water purification plant, a concentration tank for concentrating muddy water, a sludge balance tank for homogenizing muddy water, a dehydration system and a sludge storage system;
an adjusting step of changing an original wastewater tank of a water purification plant into a combined adjusting tank, dividing the combined adjusting tank into a drainage tank and a sludge discharge tank, discharging backwash water of the filter tank into the drainage tank by a water collecting well connected with the filter tank of the water purification plant, discharging sludge discharge water into the sludge discharge tank by a water collecting well connected with a sedimentation tank of the water purification plant, sucking bottom sludge at the bottom of the drainage tank into the sludge discharge tank, recycling supernatant at the upper part, discharging muddy water in the sludge discharge tank into a concentration tank, and adding a flocculating agent into the muddy water during the period;
a concentration step, namely enabling the muddy water to enter a concentration tank of the steel tank body, uniformly feeding water, depositing mud and separating the muddy water in the concentration tank through a uniform mud feeding structure, recycling supernatant fluid at the upper part of the concentration tank, and discharging mud at the lower part into a mud balance tank;
and (3) carrying out sludge balance and dehydration, namely uniformly stirring the sludge entering a sludge balance tank through a pendulum stirring device, then conveying the balanced sludge to a dehydration system for mechanical dehydration, and storing sludge blocks in a sludge storage system for periodic outward transportation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810427754.3A CN110448940B (en) | 2018-05-07 | 2018-05-07 | Mud water treatment system and mud water treatment method for water purification plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810427754.3A CN110448940B (en) | 2018-05-07 | 2018-05-07 | Mud water treatment system and mud water treatment method for water purification plant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110448940A CN110448940A (en) | 2019-11-15 |
| CN110448940B true CN110448940B (en) | 2024-01-23 |
Family
ID=68472176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810427754.3A Active CN110448940B (en) | 2018-05-07 | 2018-05-07 | Mud water treatment system and mud water treatment method for water purification plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110448940B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113144681B (en) * | 2020-11-23 | 2023-11-17 | 湖北绿水水务环境有限公司 | Static sedimentation concentration comprehensive pool of mud treatment system of water purification plant and dehydration process |
| CN112742075A (en) * | 2021-01-07 | 2021-05-04 | 杭州国泰环保科技股份有限公司 | Peripheral transmission mud scraping and sucking machine |
| CN116119748A (en) * | 2023-02-21 | 2023-05-16 | 广州市市政工程设计研究总院有限公司 | Sequencing batch sludge water regulating and concentrating system |
Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1444760A (en) * | 1972-11-28 | 1976-08-04 | Alsthom Cgee | Method of and apparatus for compacting fluid sludge |
| CA2064516A1 (en) * | 1991-04-03 | 1992-10-04 | Lawrence A. Coudriet | Method and apparatus for sludge collection |
| EP0628333A1 (en) * | 1993-05-27 | 1994-12-14 | Coöperatieve Verkoop- en Productievereniging van Aardappelmeel en Derivaten 'AVEBE' B.V. | Method and apparatus for separating solid particles from liquid with complete recirculation |
| DE19758038A1 (en) * | 1997-12-29 | 1999-07-01 | Noggerath Holding Gmbh Co Kg | Device and method for discharging solids from a solid-liquid mixture |
| CN101050034A (en) * | 2007-04-03 | 2007-10-10 | 王广学 | Economy type integrated water treatment plant |
| CN202822884U (en) * | 2012-06-04 | 2013-03-27 | 上海市政工程设计研究总院（集团）有限公司 | Inclined tube or inclined plate sedimentation tank with sludge concentration function |
| CN103319028A (en) * | 2013-07-04 | 2013-09-25 | 天津市自来水集团有限公司 | Recovering method of sludge water of water treatment plant |
| CN203513348U (en) * | 2013-09-23 | 2014-04-02 | 浙江东发环保工程有限公司 | Sludge water treatment and reuse system for settling pond |
| CN104692559A (en) * | 2015-02-28 | 2015-06-10 | 江苏新纪元环保有限公司 | High-density sedimentation and clarifying integrated device with square overall upper and lower cross sections for water treatment |
| CN104973707A (en) * | 2014-07-30 | 2015-10-14 | 上海市政工程设计研究总院（集团）有限公司 | Seasonal high turbidity raw water processing technology |
| CN105396335A (en) * | 2015-12-18 | 2016-03-16 | 新昌中法供水有限公司 | Small and medium-sized water treatment plant sludge water treatment method |
| AU2016235031A1 (en) * | 2015-03-25 | 2016-10-20 | Nubent Pty Ltd | Water processing system |
| CN107261569A (en) * | 2017-08-13 | 2017-10-20 | 贾新奎 | A kind of settler for life kind sewage |
| CN206645966U (en) * | 2017-02-18 | 2017-11-17 | 浙江联池水务设备股份有限公司 | Formula of drifting along water treatment system |
| CN107417002A (en) * | 2017-03-24 | 2017-12-01 | 合肥供水集团有限公司 | A kind of water treatment plant's spoil disposal containing manganese water lime enhanced aeration purification method |
| CN107473457A (en) * | 2017-10-11 | 2017-12-15 | 浙江联池水务设备股份有限公司 | Container moving type water treatment system |
| CN207210110U (en) * | 2017-08-30 | 2018-04-10 | 江苏圣富利环境工程有限公司 | A kind of water treatment plant's spoil disposal Water circulation treatment facility |
| CN208389463U (en) * | 2018-05-07 | 2019-01-18 | 浙江联池水务设备股份有限公司 | A kind of water for drainage slurry system |
-
2018
- 2018-05-07 CN CN201810427754.3A patent/CN110448940B/en active Active
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1444760A (en) * | 1972-11-28 | 1976-08-04 | Alsthom Cgee | Method of and apparatus for compacting fluid sludge |
| CA2064516A1 (en) * | 1991-04-03 | 1992-10-04 | Lawrence A. Coudriet | Method and apparatus for sludge collection |
| EP0628333A1 (en) * | 1993-05-27 | 1994-12-14 | Coöperatieve Verkoop- en Productievereniging van Aardappelmeel en Derivaten 'AVEBE' B.V. | Method and apparatus for separating solid particles from liquid with complete recirculation |
| DE19758038A1 (en) * | 1997-12-29 | 1999-07-01 | Noggerath Holding Gmbh Co Kg | Device and method for discharging solids from a solid-liquid mixture |
| CN101050034A (en) * | 2007-04-03 | 2007-10-10 | 王广学 | Economy type integrated water treatment plant |
| CN202822884U (en) * | 2012-06-04 | 2013-03-27 | 上海市政工程设计研究总院（集团）有限公司 | Inclined tube or inclined plate sedimentation tank with sludge concentration function |
| CN103319028A (en) * | 2013-07-04 | 2013-09-25 | 天津市自来水集团有限公司 | Recovering method of sludge water of water treatment plant |
| CN203513348U (en) * | 2013-09-23 | 2014-04-02 | 浙江东发环保工程有限公司 | Sludge water treatment and reuse system for settling pond |
| CN104973707A (en) * | 2014-07-30 | 2015-10-14 | 上海市政工程设计研究总院（集团）有限公司 | Seasonal high turbidity raw water processing technology |
| CN104692559A (en) * | 2015-02-28 | 2015-06-10 | 江苏新纪元环保有限公司 | High-density sedimentation and clarifying integrated device with square overall upper and lower cross sections for water treatment |
| AU2016235031A1 (en) * | 2015-03-25 | 2016-10-20 | Nubent Pty Ltd | Water processing system |
| CN105396335A (en) * | 2015-12-18 | 2016-03-16 | 新昌中法供水有限公司 | Small and medium-sized water treatment plant sludge water treatment method |
| CN206645966U (en) * | 2017-02-18 | 2017-11-17 | 浙江联池水务设备股份有限公司 | Formula of drifting along water treatment system |
| CN107417002A (en) * | 2017-03-24 | 2017-12-01 | 合肥供水集团有限公司 | A kind of water treatment plant's spoil disposal containing manganese water lime enhanced aeration purification method |
| CN107261569A (en) * | 2017-08-13 | 2017-10-20 | 贾新奎 | A kind of settler for life kind sewage |
| CN207210110U (en) * | 2017-08-30 | 2018-04-10 | 江苏圣富利环境工程有限公司 | A kind of water treatment plant's spoil disposal Water circulation treatment facility |
| CN107473457A (en) * | 2017-10-11 | 2017-12-15 | 浙江联池水务设备股份有限公司 | Container moving type water treatment system |
| CN208389463U (en) * | 2018-05-07 | 2019-01-18 | 浙江联池水务设备股份有限公司 | A kind of water for drainage slurry system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110448940A (en) | 2019-11-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8349176B2 (en) | Modular integrated water-purifying device | |
| CN110448940B (en) | Mud water treatment system and mud water treatment method for water purification plant | |
| CN103922506B (en) | Integrated complete equipment for water quality purification treatment | |
| CN104071923A (en) | Integrated efficient water purifier | |
| CN110496434A (en) | Desanding de-sludging device and implementation method in landfill leachate system for anaerobic treatment | |
| CN112811675A (en) | Underground coal mine muddy water treatment and reuse system and method | |
| CN108423788A (en) | Without medicament secondary waterpower coagulation assisted pond | |
| CN204111460U (en) | Integrated high-efficiency water purifier | |
| CN204265602U (en) | Integrated effluent disposal system | |
| CN113521808A (en) | New process for treating tail water of tap water | |
| CN210885400U (en) | Flotation device for sewage treatment | |
| CN211367069U (en) | Integrated water purifier | |
| CN205461179U (en) | Sedimentation basin | |
| CN113797606A (en) | Rectangular peripheral inlet and outlet sedimentation tank with optimized water inlet and outlet and sludge discharge modes | |
| CN212609938U (en) | TBM construction tunnel sewage treatment system | |
| CN108946890A (en) | A kind of sewage disposal system integrating purification with concentration | |
| CN214611880U (en) | Integrated coagulation of leading fine grid strengthens horizontal flow sedimentation tank | |
| CN211885783U (en) | Bucket lifting type fine sand recovery equipment | |
| CN213049532U (en) | Rectangular peripheral inlet and outlet sedimentation tank with optimized water inlet and outlet and sludge discharge modes | |
| CN203890153U (en) | Complete set of water quality purification treatment all-in-one equipment | |
| CN203803164U (en) | Efficient mud-water separation precipitation system | |
| CN208389463U (en) | A kind of water for drainage slurry system | |
| CN106552445A (en) | A kind of rectangle Zhou Jinzhou goes out second pond and its using method | |
| CN114307274B (en) | Mud scraper, mud guiding device and mud sedimentation tank for sewage treatment | |
| CN204959950U (en) | Rainwater automatic collection emptying devices |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |