CN211847505U

CN211847505U - Heavy metal-containing sewage treatment system

Info

Publication number: CN211847505U
Application number: CN202020387178.7U
Authority: CN
Inventors: 刘广荣; 刘国梁; 李勇政
Original assignee: Sichuan Guanghexing Technology Co ltd
Current assignee: Sichuan Guanghexing Technology Co ltd
Priority date: 2020-03-24
Filing date: 2020-03-24
Publication date: 2020-11-03
Anticipated expiration: 2030-03-24

Abstract

The utility model discloses a contain heavy metal sewage treatment system, including the coarse filter tank that distributes in proper order, acid-base equalizing basin, flocculation basin and the pond of stewing, the middle part of flocculation basin is provided with the water-stop sheet who separates the flocculation basin in for flocculation district and disengagement zone, the flocculation basin top both sides of disengagement zone one side have all been processed out the mud passageway, go out the mud passageway and stew and be provided with the intercommunicating pore between the pond, the both ends of intercommunicating pore all are provided with the filter screen, stew and install the circulating pump between pond and the flocculation basin, the disengagement zone top is provided with scrapes mud mechanism, and the bottom of disengagement zone and the intercommunication have the raceway between the pond of stewing. The utility model discloses a coarse filtration-pH value is adjusted-flocculation-separation of suspension-filterable mode guarantees the higher separation treatment efficiency of this sewage treatment system, and the mode of settling that stews in order to realize solid-liquid separation has the advantage that the cycle is short, efficient after adding the flocculating agent relatively tradition again.

Description

Heavy metal-containing sewage treatment system

Technical Field

The utility model relates to a sewage treatment technical field, concretely relates to contain heavy metal sewage treatment system.

Background

Heavy metal wastewater is commonly found in electroplating, electronic industry and metallurgical industry, especially in electroplating and electronic industry, and the composition of the wastewater is very complex. Heavy metals in wastewater cannot be decomposed and destroyed by various common methods, the prior effective treatment mode is chemical precipitation or flocculation, then the precipitate or flocculate is treated after solid-liquid separation, and the common solid-liquid separation mode is standing precipitation, so the treatment mode has long period and easily influences the progress of the whole sewage treatment operation.

Disclosure of Invention

An object of the utility model is to provide a relatively higher heavy metal-containing sewage treatment system of treatment effeciency.

The utility model aims at realizing through the following technical scheme: contain heavy metal sewage treatment system, including coarse filter tank, acid-base equalizing basin, flocculation basin and the pond of stewing that distributes in proper order, coarse filter tank one side is provided with sewage discharge pipe, and installs the filtration fence in the coarse filter tank, filters the below that the fence is located sewage discharge pipe, installs the stealthily dirty pump between coarse filter tank opposite side and the acid-base equalizing basin, and the end of intaking of stealthily dirty pump is located the below of filtering the fence, be provided with the pH value detector in the acid-base equalizing basin, and be provided with the immersible pump between acid-base equalizing basin and the flocculation basin, the bottom of flocculation basin and acid-base equalizing basin all is provided with at least one aeration tympanic bulla device, and the middle part of flocculation basin is provided with the water-stop sheet of separating for flocculation district and disengagement zone in the flocculation basin, the flocculation district is close to the acid-base equalizing basin, and flocculation district and disengagement zone are through the clearance intercommunication of difference in, the flocculation basin top both sides of disengagement zone one side all processed out the mud passageway, go out mud passageway one end and disengagement zone intercommunication, the other end is located pond mouth one side of stewing, and goes out the mud passageway and stew and be provided with the intercommunicating pore between the pond, the both ends of intercommunicating pore all are provided with the filter screen, install the circulating pump between pond and the flocculation basin of stewing, the pool wall top of disengagement zone one side flocculation basin is provided with and is used for scraping flocculate and goes into the mud mechanism of scraping to both sides in going out the mud passageway, and the bottom of disengagement zone and the intercommunication of stewing between the pond have the raceway, install automatically controlled valve on the.

Further, the cross sectional shape in flocculation district is trapezoidal, and this trapezoidal goes up the base and meets with the disengagement zone, scrape mud mechanism and include first mounting panel, second mounting panel and set up two sets of mud subassemblies of scraping between first mounting panel and second mounting panel, two sets of mud subassemblies of scraping are located respectively between the both ends of first mounting panel and second mounting panel, scrape the mud subassembly and include pivot, fixed suit at the epaxial pivot sleeve of pivot and the rotatory driving motor of drive pivot, first mounting panel spanes between the flocculation basin both sides wall directly over the water-stop plate, the second mounting panel is fixed on the flocculation basin lateral wall of keeping away from water-stop plate one side in the disengagement zone, the pivot is rotationally installed between first mounting panel and second mounting panel, be provided with the multi-disc on the pivot sleeve and scrape the flocculation thing and send the mud scraper blade to corresponding in the play mud passageway.

Furthermore, the mud discharging channel is L-shaped, and the mud discharging channels on the two sides cover one side of the standing pool close to the flocculation pool and the two adjacent sides of the side.

Furthermore, level meters are arranged in the coarse filtration tank, the acid-base adjusting tank, the flocculation tank and the standing tank.

Furthermore, a climbing staircase leading to the filtering fence is installed at the pool opening of the coarse filtering pool.

The utility model discloses a coarse filtration-pH value is adjusted-flocculation-suspension separation-filterable mode guarantees the higher separation treatment efficiency of this sewage treatment system, it is short to stew the sediment after the relatively traditional addition flocculating agent in order to realize solid-liquid separation's mode, efficient advantage, directly carry out the suspension separation after, the heavy metal that contains a small amount or trace suspension type deposits the bottom quick sediment in the pond that stews, the heavy metal that contains a large amount of suspension types deposits and goes into the pond of stewing along with a small amount of water body after filtering again, this kind of solid-liquid separation's mode is higher relatively, and most precipitate is easily collected, be favorable to the later stage to its centralized processing.

Drawings

Fig. 1 is a schematic structural diagram of a processing system according to an embodiment of the present invention.

The labels in the figure are: 1-coarse filtration tank; 2-acid-base adjusting tank; 3-a flocculation tank; 4-standing in a pool; 5-a mud scraping mechanism; 6-filtering the fence; 7-a sewage discharge pipe; 8-climbing an escalator; 9-a submersible sewage pump; 10-pH value detector; 11-maintenance channel; 12-a submersible pump; 13-a liquid level meter; 14-a water-stop sheet; 15-a mud outlet channel; 16-a filter screen; 17-heavy metal detector; 18-a circulation pump; 51-a first mounting plate; 52-a second mounting plate; 53-a power motor; 54-a spindle sleeve; 55-sludge scraper.

Detailed Description

As shown in fig. 1, the heavy metal-containing sewage treatment system that this embodiment provided includes coarse filter tank 1, acid-base equalizing basin 2, flocculation basin 3 and the pond 4 that stews that distribute in proper order, dig out the foundation ditch in advance, erect the partition wall in the foundation ditch and divide into above-mentioned coarse filter tank 1 with the foundation ditch, acid-base equalizing basin 2, flocculation basin 3 and the pond 4 that stews, all install two aeration bubbling devices in the bottom of acid-base equalizing basin 2 and flocculation basin 3, aeration bubbling device adopts the form of current microbubble generator or air compressor machine cooperation aeration pipe, dig out on the foundation ditch surface can directly lead to the maintenance passageway 11 of acid-base equalizing

basin

2 and 3 diapire surface of flocculation basin to in order to install and overhaul the maintenance to aeration bubbling device. 1 one side of coarse filtration pond is provided with sewage discharge pipe 7, and industrial waste water passes through sewage discharge pipe 7 and gets into to this system coarse filtration pond 1, acid-base equalizing basin 2, flocculation basin 3 and the pond 4 that stews all set up level gauge 13 in to the liquid level of real-time supervision waste water, in order to carry out operation on next step. Install horizontally in the coarse strainer 1 and filter fence 6, filter fence 6 and be located sewage discharge pipe 7's below and be used for blockking the filtration to large granule rubbish in the industrial waste water, prevent that these large granule rubbish from getting into next processing link, climbing staircase 8 leading to filtering fence 6 is installed to the pool mouth one side of coarse strainer 1, can supply the staff to climb and collect or handle large granule rubbish on filtering fence 6.

Install between coarse filtration pond 1 opposite side and the acid-base equalizing basin 2 and stealthily dirty pump 9, stealthily dirty pump 9's the end of intaking is located the below of filtering fence 6, can directly pump the industrial waste water after the coarse filtration to the acid-base equalizing basin 2 in. The pH value detector 10 is arranged in the pH value adjusting tank 2, a proper amount of alkali is continuously added into the pH value adjusting tank 2, and the pH value detector 10 detects the alkalinity degree in the tank so as to remind workers of increasing the alkali amount and keep the water in the tank to be alkalescent all the time, so that a better flocculation effect can be obtained conveniently at the back. A submersible pump 12 is arranged between the acid-base adjusting tank 2 and the flocculation tank 3, and the submersible pump 12 can pump the alkalescent water body in the acid-base adjusting tank 2 to the flocculation tank 3 for the next operation. A water-stop sheet 14 which divides the inside of the flocculation tank 3 into a flocculation area and a separation area is arranged in the middle of the flocculation tank 3, the flocculation area is close to the acid-base adjusting tank 2, the separation area is close to the standing tank 4, in the embodiment, the cross section of the flocculation area is in an isosceles trapezoid shape, the upper bottom edge of the isosceles trapezoid is connected with a separation area, the flocculation area and the separation area are communicated through a gap with a height difference between the top of the water-stop sheet 14 and the top of the flocculation tank 3, and a flocculating agent is directly added after the weakly alkaline water pumped to the flocculation tank 3 reaches a corresponding water level, under the action of the bubbles of the aeration bubbling device, the water body is fully mixed with the flocculating agent, so that heavy metal ion substances in the water body form a flocculent group, the flocculates are always kept in a suspended or floating state under the action of the floating bubbles and directionally float to the separation area along the two side edges of the isosceles trapezoid.

The mud discharging channels 15 are processed on two sides of the top of the flocculation tank 3 on one side of the separation area, the mud discharging channels 15 are L-shaped, and the mud discharging channels 15 on the two sides are combined into a U-shaped and coated on one side of the standing tank 4 close to the flocculation tank 3 and the two adjacent sides of the side. Specifically, one end of the sludge outlet channel 15 is communicated with the upper opening of the separation zone, the other end of the sludge outlet channel is located on one side of the tank opening of the standing tank 4, a bar-shaped communication hole is arranged between the sludge outlet channel 15 and the standing tank 4, the openings at the two ends of the communication hole are provided with filter screens 16, the top of the tank wall of the flocculation tank 3 on one side of the separation zone is provided with a sludge scraping mechanism 5 for scraping flocculates into the sludge outlet channels 15 on the two sides, the sludge scraping mechanism 5 comprises a first mounting plate 51, a second mounting plate 52 and two groups of sludge scraping assemblies arranged between the first mounting plate 51 and the second mounting plate 52, the two groups of sludge scraping assemblies are respectively located between the two ends of the first mounting plate 51 and the second mounting plate 52, the two groups of sludge scraping assemblies respectively scrape the flocculates to the corresponding sludge outlet channels 15, and are described by using one group of sludge scraping assemblies, each sludge scraping assembly comprises a rotating shaft, a rotating shaft sleeve 54 fixedly, the first mounting plate 51 spans between two side walls of the flocculation tank 3 right above the water stop plate 14, a gap between the first mounting plate 51 and the water stop plate 14 is a passage for flocs to float to the separation area from the flocculation area, the second mounting plate 52 is fixed on the side wall of the flocculation tank 3 far away from one side of the water stop plate 14, the rotating shaft is rotatably mounted between the first mounting plate 51 and the second mounting plate 52 through a bearing, four sludge scraping plates 55 which are coaxial and circumferentially and uniformly distributed are arranged on the rotating shaft sleeve 54, the power motor 53 is started, the rotating shaft drives the rotating shaft sleeve 54 to rotate, the sludge scraping plates 55 rotate along with the rotating shaft and continuously scrape the flocs floating to the separation area into the corresponding sludge outlet passage 15, a large amount of flocs and a small amount of water in the sludge outlet passage 15 flow to the filter screen 16, and the water after being filtered and separated flows into the standing tank 4, the flocs staying in the sludge outlet channel 15 can be collected collectively for further separation.

The bottom of separation zone and the pond 4 that stews communicate between have the raceway, install automatically controlled valve on the raceway, automatically controlled valve is located the maintenance passageway 11 of partition wall bottom to overhaul at any time, be provided with heavy metal detector 17 in the pond 4 that stews, the water that enters into to the pond 4 that stews after by solid-liquid separation only contains a small amount or micro-flocculate, and the majority is located the bottom of the pool and can precipitate fast, and heavy metal detector 17 detects qualified water accessible suction pump will stew the water in the pond 4 and take away and get into next step recovery process can. And a circulating pump 18 is arranged between the standing tank 4 and the flocculation tank 3, and if the detection is not qualified, the water body in the standing tank 4 is pumped back to the flocculation tank 3 for solid-liquid separation again. The whole system needs to be carried out under continuous sewage input, can guarantee higher efficiency of heavy metal ion or material separation processing, and compared with the traditional mode of directly standing and precipitating after adding a flocculating agent to realize solid-liquid separation, the system has the advantages of shorter period and higher efficiency, and finally the residual sewage in the re-flocculation area is directly stood and pumped away.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any modification and replacement based on the technical solution and inventive concept provided by the present invention should be covered within the protection scope of the present invention. It should be noted that structures or components illustrated in the drawings are not necessarily drawn to scale, and descriptions of well-known components and processing techniques and technologies are omitted to avoid unnecessarily limiting the invention.

Claims

1. Contain heavy metal sewage treatment system, including coarse filter tank, acid-base equalizing basin, flocculation basin and the pond of stewing that distributes in proper order, its characterized in that: the utility model discloses a sewage treatment device, including a coarse filtration pond, a flocculation pond, a separation zone, a filtration fence, a sewage discharge pipe, a sewage submersible pump, an acid-base adjusting pond, a flocculation pond, a water-stop sheet, a flocculation zone, a separation zone, a mud channel, a mud separation zone and a separation zone, wherein the coarse filtration pond is arranged on one side of the coarse filtration pond, the filtration fence is arranged below the sewage discharge pipe, the sewage submersible pump is arranged between the other side of the coarse filtration pond and the acid-base adjusting pond, the water inlet end of the sewage submersible pump is arranged below the filtration fence, the acid-base adjusting pond is internally provided with a pH value detector, the submersible pump is arranged between the acid-base adjusting pond and the flocculation pond, the bottom of the flocculation pond and the acid-base adjusting pond are respectively provided with at least one aeration bubbling device, the middle part of the flocculation pond is provided with the water-stop sheet, the other end is located pond mouth one side of stewing, and goes out the mud passageway and stew and be provided with the intercommunicating pore between the pond, and the both ends of intercommunicating pore all are provided with the filter screen, stew and install the circulating pump between the pond, the pool wall top of disengagement zone one side flocculation basin is provided with and is used for scraping flocculate and goes into the mud mechanism of scraping to both sides in the mud passageway, and the bottom of disengagement zone and the intercommunication of stewing between the pond have the raceway, install automatically controlled valve on the raceway.

2. The heavy metal-containing sewage treatment system according to claim 1, wherein: the cross sectional shape in flocculation district is trapezoidal, and this trapezoidal goes up the base and meets with the disengagement zone, scrape mud mechanism and include first mounting panel, second mounting panel and set up two sets of mud subassemblies of scraping between first mounting panel and second mounting panel, two sets of mud subassemblies of scraping are located respectively between the both ends of first mounting panel and second mounting panel, scrape the mud subassembly and include pivot, fixed suit at the epaxial pivot sleeve of commentaries on classics and drive the rotatory motor power of pivot, first mounting panel spanes between the flocculation basin both sides wall directly over the water-stop plate, the second mounting panel is fixed on the flocculation basin lateral wall of water-stop plate one side is kept away from in the disengagement zone, the pivot is rotationally installed between first mounting panel and second mounting panel, be provided with the mud scraper blade that the flocculation thing will be scraped to corresponding in the mud passageway on the pivot sleeve.

3. The heavy metal-containing sewage treatment system according to claim 2, wherein: the mud discharging channel is L-shaped, and the mud discharging channels on the two sides cover one side of the standing pool close to the flocculation pool and the two adjacent sides of the side.

4. The heavy metal-containing sewage treatment system according to claim 1, wherein: and liquid level meters are arranged in the coarse filtration tank, the acid-base adjusting tank, the flocculation tank and the standing tank.

5. The heavy metal-containing sewage treatment system according to claim 1, wherein: and a climbing staircase leading to the filtering fence is arranged at the tank opening of the coarse filtering tank.