CN211445128U

CN211445128U - Air floatation equipment for sewage treatment

Info

Publication number: CN211445128U
Application number: CN201922453463.4U
Authority: CN
Inventors: 董炽
Original assignee: Wuhan Shuojun Technology Co ltd
Current assignee: Wuhan Shuojun Technology Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-09-08
Anticipated expiration: 2029-12-30

Abstract

The utility model discloses an air floatation device for sewage treatment, which comprises an air floatation tank, a scum scraping system, a dissolved air tank, a detection tank, a water quality monitor, a microprocessor and a water pump, wherein the air floatation tank is provided with a water inlet and a water outlet, the water inlet is provided with a water inlet electromagnetic valve, water in the air floatation tank is discharged into the detection tank, the water pump is arranged in the detection tank, the water outlet end of the water pump is communicated with the air floatation tank through a water outlet pipeline, the water outlet electromagnetic valve is arranged in the water outlet pipeline, the side wall of the detection tank is provided with a first water outlet, and the first water outlet is internally provided with a first; the water quality monitor is connected with the microprocessor and sends monitoring information to the microprocessor, the microprocessor controls the starting of the water pump, the microprocessor controls the opening and closing of the water inlet electromagnetic valve, the microprocessor controls the opening and closing of the water outlet electromagnetic valve, and the microprocessor controls the opening and closing of the drainage battery valve; by using the device, the sewage which is not up to standard in purification can be prevented from discharging and causing environmental pollution.

Description

Air floatation equipment for sewage treatment

Technical Field

The utility model relates to a sewage treatment technical field, concretely relates to air supporting equipment for sewage treatment.

Background

The air floating equipment is water treating equipment with great amount of micro bubbles introduced or produced in water to make air adhere to suspended matter grains in high dispersed micro bubble form to result in density lower than that of water and float on water surface based on buoyancy principle. The air flotation equipment is currently applied to the treatment of water supply, industrial wastewater and municipal sewage. Compared with other solid-liquid separation equipment, the air floatation equipment has the characteristics of low investment, small occupied area, high automation degree, convenience in operation and management and the like, but the existing air floatation equipment is discharged after only one-time water purification treatment, the water purification effect is gradually deteriorated after the air floatation equipment is used for a long time, and at the moment, the treated sewage is continuously discharged to cause environmental pollution.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model provides an air supporting equipment for sewage treatment carries out the real-time supervision feedback to exhaust water after purification treatment, prevents to purify the sewage discharge not up to standard yet and causes environmental pollution.

The utility model provides an air supporting equipment for sewage treatment, includes air supporting pond, dross strikes off system and dissolves the gas pitcher, dissolve the gas pitcher and can pour into pressurized air into toward the air supporting pond in, dross strikes off the scum layer that the system can strike off the sewage surface in the air supporting pond, still include detection pond, water quality monitoring appearance, microprocessor and water pump, water inlet and outlet have on the air supporting pond, water inlet department is equipped with water inlet solenoid valve, water outlet department is connected with drainage pipe, and water in the air supporting pond passes through drainage pipe and discharges into in the detection pond, the water pump sets up in the detection pond, and the play water end of water pump communicates with the air supporting pond through outlet conduit, be equipped with the outlet solenoid valve in the outlet conduit, detection pond water electricity lateral wall is equipped with first drain opening, be equipped with first; the water quality monitoring instrument is connected with the microprocessor and sends monitoring information to the microprocessor, the microprocessor is electrically connected with the water pump and controls the starting of the water pump, the microprocessor is connected with the water inlet electromagnetic valve and controls the switch of the water inlet electromagnetic valve, the microprocessor is connected with the water outlet battery valve and controls the switch of the water outlet electromagnetic valve, and the microprocessor is connected with the first water outlet electromagnetic valve and controls the switch of the water outlet battery valve. In order to solve the problems, the inventor designs the technical scheme, the technical scheme is that a detection tank is additionally arranged on the original air floatation equipment, water treated in the air floatation tank is discharged into the detection tank, a water quality monitor detects the water in the detection tank and sends monitoring information to a microprocessor, the microprocessor controls the water inlet electromagnetic valve, the water outlet electromagnetic valve and a first water discharge electromagnetic valve to be opened and closed, the water inlet electromagnetic valve and the first water discharge electromagnetic valve are both in an open state in an initial state, a water outlet valve and a water pump are in a closed state, sewage enters the air floatation tank from a water inlet to be treated and then enters the detection tank through a water outlet, the sewage is discharged through the first water outlet, when the water quality monitor is used, the microprocessor sets a specific value indicating whether the water quality reaches the standard or not, and controls the water inlet electromagnetic valve and the first water discharge electromagnetic valve to be closed, microprocessor control water pump and play water solenoid valve are opened, water pump work purifies once more in will detecting the water suction air supporting pond in the pond, the water back up to reaching standard in the pond is purified many times to so circulate, microprocessor control water pump and outlet valve are closed, control water solenoid valve and first exhaust solenoid valve are opened, water after reaching standard discharges, so can prevent to purify sewage discharge not up to standard yet and cause environmental pollution, simultaneously at the in-process that the circulation purified, the staff discovers that there is not water discharge in the detection pond, can in time overhaul and maintain the air supporting equipment.

Preferably, still include the baffle, the baffle will detect the pond and separate for intake chamber and play pond, drainage pipe is with the water drainage income intake chamber in, the water pump sets up in going out the pond, the top height of baffle is less than the height on detection pond top, and the water in the intake chamber overflows the baffle and gets into out the pond in. Among this technical scheme equipment baffle, baffle divide into intake antrum and play pond with the detection pond, and water in the air supporting pond gets into in the intake antrum, and the water in the intake antrum overflows the baffle and gets into out in the pond, and water realizes gravity settling separation in the intake antrum, makes the quality of water that gets into out in the pond better.

Preferably, the water outlet end of the drainage pipeline is provided with a screen. In the technical scheme, the screen is arranged at the water outlet end of the drainage pipeline to filter water discharged by the air floatation tank, so that the water quality entering the detection tank is better.

Preferably, the number of the water outlets is two, each water outlet is connected with a water drainage pipeline, and a water drainage electromagnetic valve is arranged in each water drainage pipeline. The water outlet sets up to two among this technical scheme, and every water outlet department all is connected with drainage pipe, is equipped with the solenoid valve in the drainage pipe, and during the use, a drainage solenoid valve is opened, and a drainage solenoid valve closes, and after the screen cloth of the drainage solenoid valve place drainage pipe water outlet end of opening had screened more impurity, closed drainage solenoid valve, another drainage solenoid valve is opened again, is convenient for change the screen cloth to do not influence the normal work of air supporting equipment.

Preferably, the water quality monitor is an online COD monitor. The water quality monitoring appearance is online COD monitor among this technical scheme, and the value up to standard that sets for in the microprocessor is 100mg/L, and when online COD monitor monitored the quality of water COD in the detection pond and is greater than 100mg/L, microprocessor control water inlet solenoid valve and first drainage solenoid valve were closed, and microprocessor control water pump and play water solenoid valve are opened. Chemical Oxygen Demand (COD) is the amount of oxidant consumed by reductive substances in water under the action of an additional strong oxidant under certain strict conditions during oxidative decomposition, expressed in mg/L of oxygen, and reflects the degree of pollution of the reductive substances in the water, wherein the substances comprise organic matters, nitrite, ferrous salts, sulfides and the like, and the COD can be used as a comprehensive index of the relative content of organic substances.

Preferably, dross strikes off system includes scraper blade, the open box in upper end, threaded rod, motor, connecting block and slider, the box level sets up on the lateral wall in air supporting pond, is equipped with the recess on the box inside wall, on the motor was fixed in the lateral wall in air supporting pond, the output of motor with the threaded rod is connected, the one end that the threaded rod passed the box gets into the box inner chamber, be equipped with the screw hole on the connecting block, threaded rod and screw hole threaded connection and threaded rod pass the connecting block, can freely slide in the recess in the slider embedding recess, the connecting block is connected with the slider, the scraper blade is connected with the connecting block, and the lower extreme of scraper blade is located the air supporting pond, rotates the motor, drives the connecting block and removes and then drives the scraper blade and remove from air supporting pond. The traditional scum scraping system adopts chain transmission to drive a scraper to move so as to scrape a scum layer on the surface of sewage in an floatation tank, the chain transmission structure is complex, and noise is large at the same time; the output connecting rod of motor, the threaded rod passes box one end and gets into the box inner chamber, threaded rod and connecting block threaded connection, and the connecting block is connected with the slider, so form screw drive, and the starter motor drives the connecting block and removes, and the scraper blade is connected with the connecting block, follows the connecting block and removes to scrape out the air supporting pond after the other end with the dross from air supporting pond one end, so can reduce the noise that chain drive produced. In the technical scheme, one side of the air flotation tank for discharging slag is the front side, and the front side and the rear side in the technical scheme are both taken as the reference.

Preferably, still include the cylinder, the cylinder is fixed in on the connecting block, and the output of cylinder is connected with the scraper blade through connecting the member. The scum in the floatation tank is scraped to the front side from the rear side of the floatation tank by the scraper, and needs to be returned to the front side of the floatation tank, and the scraper always contacts with the water surface to cause that part of the scum can exist and part of the scum always exists between the scraper and the inner wall of the rear side of the floatation tank, so that the scum can not be removed. Set up the cylinder among this technical scheme, when the scraper blade reachd the air supporting pond preceding lateral wall, the cylinder starts, and the drive scraper blade rises, and motor antiport drives the scraper blade and gets back to air supporting pond rear side, reachs air supporting pond rear side after, starts the cylinder, drives the scraper blade decline, so realize the circulation and scrape the sediment.

Preferably, the slag removing plate is connected with the bottom end of the front side wall of the scraper plate, and the slag removing plate is integrally inclined downwards from the rear side of the slag removing plate to the front side of the slag removing plate. General vertical setting of scraper blade, when the scraper blade reachd the side wall before the air supporting pond, partial dross can not be discharged, sets up the sediment board among this technical scheme, and when the sediment board reachd the side wall before the air supporting pond, the cylinder starts, and the drive rises the sediment board and rises, all dross all discharge the air supporting pond, plays the slope of sediment board and sets up, and the dross is followed and is slided and discharge on the sediment board.

The beneficial effects of the utility model are embodied in: in the technical scheme, a detection tank is additionally arranged on the original air floatation equipment, water treated in the air floatation tank is discharged into the detection tank, a water quality monitor detects the water in the detection tank and sends monitoring information to a microprocessor, the microprocessor controls the opening and closing of a water inlet electromagnetic valve, a water outlet electromagnetic valve and a first water discharge electromagnetic valve, when the air floatation equipment is used, the microprocessor sets a specific value indicating whether the water quality reaches the standard, when the water quality monitor monitors that the water in the detection tank does not reach the standard, the microprocessor controls the water inlet electromagnetic valve and the first water discharge electromagnetic valve to be closed, the microprocessor controls a water pump and the water outlet electromagnetic valve to be opened, the water pump works to pump the water in the detection tank into the air floatation tank for secondary purification, the microprocessor controls the water pump and the water outlet valve to be closed and controls the water inlet electromagnetic valve and the first water discharge, the water after will reaching standard discharges, so can prevent to purify not yet up to standard sewage discharge and cause environmental pollution, and at the in-process that the circulation purified, the staff discovers that there is not water discharge in the detection pond simultaneously, can in time overhaul and maintain air supporting equipment.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a flow chart of the present invention.

In the attached drawing, 1-an air flotation tank, 2-a scum scraping system, 3-a dissolved air tank, 4-a detection tank, 5-a drainage pipeline, 6-a first drainage port, 7-a water outlet pipeline, 8-a partition plate, 21-a scraper, 22-a box body, 23-a threaded rod, 24-a motor, 25-a connecting block, 26-a sliding block, 27-a groove, 28-a scum board, 29-an air cylinder and 30-a connecting rod piece.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

Example 1

As shown in fig. 1 and fig. 2, the present embodiment includes an air flotation tank 1, a scum scraping system 2 and a dissolved air tank 3, the dissolved air tank 3 can inject pressurized air into the floatation tank 1, the scum scraping system 2 can scrape the scum layer on the surface of the sewage in the floatation tank 1, and the dissolved air tank also comprises a detection tank 4, a water quality monitor, a microprocessor and a water pump, the air floatation tank 1 is provided with a water inlet and a water outlet, the water inlet is provided with a water inlet electromagnetic valve, a drainage pipeline 5 is connected at the water outlet, water in the air floatation tank 1 is drained into the detection tank 4 through the drainage pipeline 5, the water pump is arranged in the detection tank 4, the water outlet end of the water pump is communicated with the air floatation tank 1 through a water outlet pipeline 7, a water outlet electromagnetic valve is arranged in the water outlet pipeline 7, a first drainage port 6 is arranged on the side wall of the detection pool 4, and a first drainage electromagnetic valve is arranged in the first drainage port; the water quality monitoring instrument is connected with the microprocessor and sends monitoring information to the microprocessor, the microprocessor is electrically connected with the water pump and controls the starting of the water pump, the microprocessor is connected with the water inlet electromagnetic valve and controls the switch of the water inlet electromagnetic valve, the microprocessor is connected with the water outlet battery valve and controls the switch of the water outlet electromagnetic valve, and the microprocessor is connected with the first water outlet electromagnetic valve and controls the switch of the water outlet battery valve. The model that microprocessor adopted in this embodiment is STM32F0, in this embodiment the water quality monitor is online COD monitor, and the water pump and the play water solenoid valve starting value that set for in the microprocessor are 100mg/L, and the water COD that detects in the pond 4 when online COD monitor is greater than 100mg/L, and water pump and play water solenoid valve start.

In order to further subside water in detection tank 4, still include baffle 8 in this embodiment, baffle 8 separates detection tank 4 for intake chamber and play pond, drainage pipe 5 is gone into the intake chamber with the water, the water pump sets up in going out the pond, baffle 8's top height is less than the height on 4 tops of detection tank, and the water in the intake chamber overflows baffle 8 and gets into out the pond in, in this embodiment drainage pipe 5 water outlet end is equipped with the screen cloth, the screen cloth passes through the bolt fastening with 5 water outlet end terminal surfaces of drainage pipe. In order not to influence the whole work of air supporting equipment at the in-process of changing the screen cloth, the outlet sets up to two in this embodiment, and every outlet department all is connected with drainage pipe 5, all is equipped with the drainage solenoid valve in every drainage pipe 5.

Example 2

In order to reduce the noise generated by the conventional scum scraping system 2 during the movement process, the embodiment is further defined on the basis of embodiment 1, in which the scum scraping system 2 includes a scraping plate 21, a box 22 with an open upper end, a threaded rod 23, a motor 24, a connecting block 25 and a sliding block 26, the box 22 is horizontally disposed on the outer sidewall of the floatation tank 1, a groove 27 is disposed on the inner sidewall of the box 22, the motor 24 is fixed on the outer sidewall of the floatation tank 1, the output end of the motor 24 is connected with the threaded rod 23, the threaded rod 23 penetrates through one end of the box 22 and enters the inner cavity of the box 22, a threaded hole is disposed on the connecting block 25, the threaded rod 23 is in threaded connection with the threaded hole and the threaded rod 23 penetrates through the connecting block 25, the sliding block 26 is embedded in the groove 27 and can freely slide in the groove, the scraper 21 is connected with the connecting block 25, the lower end of the scraper 21 is positioned in the air flotation tank 1, the motor 24 is rotated to drive the connecting block 25 to move, and then the scraper 21 is driven to move from the rear side of the air flotation tank 1 to the front side of the air flotation tank 1. In this embodiment, the air flotation tank 1 is horizontally arranged, the motor 24 is provided with a corresponding control system, one end of the threaded rod 23 is connected with an output shaft of the motor 24 and is coaxially arranged with the output shaft of the motor 24, and the other end of the threaded rod 23 is rotatably arranged on the inner side wall of the box body 22, so that the rotating stability of the threaded rod 23 can be improved. In this embodiment, the part other than the scraper 21 in the part of the scum scraping system 2 is defined as a moving assembly, both ends of the scraper 21 are connected with the moving assembly, and the two moving assemblies move simultaneously to drive the scraper 21 to move, so that the stability of the movement of the scraper 21 can be improved, and the threaded rod 23 is horizontally arranged in this embodiment.

In order to completely scrape the scum, the scum scraping device further comprises an air cylinder 29, the air cylinder 29 is fixed on the connecting block 25, the output end of the air cylinder 29 is connected with the scraping plate 21 through a connecting rod piece 30, and the air cylinder 29 has a corresponding control system in the embodiment.

The slag removing plate 28 is connected with the bottom end of the front side wall of the scraper 21, and the whole slag removing plate 28 is inclined downwards in the direction from the rear side of the slag removing plate 28 to the front side of the slag removing plate 28.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. The utility model provides an air supporting equipment for sewage treatment, includes air supporting pond (1), dross strikes off system (2) and dissolves gas pitcher (3), dissolve gas pitcher (3) and can inject pressurized air into air supporting pond (1), dross strikes off system (2) and can strike off the dross layer that is located the sewage surface in air supporting pond (1), its characterized in that still includes detection pond (4), water quality monitoring appearance, microprocessor and water pump, air supporting pond (1) is last to have water inlet and outlet, water inlet department is equipped with the solenoid valve of intaking, water outlet department is connected with drainage pipe (5), and the water in air supporting pond (1) is discharged into in detection pond (4) through drainage pipe (5), the water pump sets up in detection pond (4), and the outlet end of water pump passes through outlet conduit (7) and communicates with water tank (1), be equipped with the solenoid valve of swimming in outlet conduit (7), a first drainage port (6) is formed in the side wall of the detection pool (4), and a first drainage electromagnetic valve is arranged in the first drainage port; the water quality monitoring instrument is connected with the microprocessor and sends monitoring information to the microprocessor, the microprocessor is electrically connected with the water pump and controls the starting of the water pump, the microprocessor is connected with the water inlet electromagnetic valve and controls the switch of the water inlet electromagnetic valve, the microprocessor is connected with the water outlet battery valve and controls the switch of the water outlet electromagnetic valve, and the microprocessor is connected with the first water outlet electromagnetic valve and controls the switch of the water outlet battery valve.

2. The air floatation device for sewage treatment as claimed in claim 1, further comprising a partition plate (8), wherein the partition plate (8) separates the detection tank (4) into a water inlet tank and a water outlet tank, the water inlet tank is filled with water by the water discharge pipeline (5), the water pump is arranged in the water outlet tank, the top end of the partition plate (8) is lower than the top end of the detection tank (4), and water in the water inlet tank overflows the partition plate (8) and enters the water outlet tank.

3. An air-flotation device for sewage treatment according to claim 1, characterized in that the water outlet end of the water discharge pipeline (5) is provided with a screen.

4. An air floatation device for sewage treatment according to claim 3, wherein there are two water discharge ports, each water discharge port is connected with a water discharge pipeline (5), and a water discharge electromagnetic valve is arranged in each water discharge pipeline (5).

5. The air floatation device for sewage treatment according to claim 1, wherein the water quality monitor is an online COD monitor.

6. The air floatation device for sewage treatment according to claim 1, wherein the scum scraping system (2) comprises a scraping plate (21), a box body (22) with an open upper end, a threaded rod (23), a motor (24), a connecting block (25) and a sliding block (26), the box body (22) is horizontally arranged on the outer side wall of the air floatation tank (1), a groove (27) is arranged on the inner side wall of the box body (22), the motor (24) is fixed on the outer side wall of the air floatation tank (1), the output end of the motor (24) is connected with the threaded rod (23), the threaded rod (23) penetrates through one end of the box body (22) to enter the inner cavity of the box body (22), a threaded hole is arranged on the connecting block (25), the threaded rod (23) is in threaded connection with the threaded hole and the threaded rod (23) penetrates through the connecting block (25), the sliding block (26) is embedded in the groove (27) and can, the air floatation device is characterized in that the connecting block (25) is connected with the sliding block (26), the scraper (21) is connected with the connecting block (25), the lower end of the scraper (21) is located in the air floatation tank (1), the motor (24) is rotated to drive the connecting block (25) to move so as to drive the scraper (21) to move from the rear side of the air floatation tank (1) to the front side of the air floatation tank (1).

7. An air floatation device for sewage treatment according to claim 6, further comprising an air cylinder (29), wherein the air cylinder (29) is fixed on the connecting block (25), and the output end of the air cylinder (29) is connected with the scraper (21) through a connecting rod member (30).

8. The air floatation device for sewage treatment according to claim 7, further comprising a slag removing plate (28), wherein the slag removing plate (28) is connected with the bottom end of the front side wall of the scraper (21), and the slag removing plate (28) is integrally inclined downwards from the rear side of the slag removing plate (28) to the front side of the slag removing plate (28).