CN215756908U

CN215756908U - Paint spraying wastewater integrated treatment equipment

Info

Publication number: CN215756908U
Application number: CN202121617367.XU
Authority: CN
Inventors: 庄职源; 廖小兰
Original assignee: Guangdong Green Engineering Co ltd
Current assignee: Guangdong Green Engineering Co ltd
Priority date: 2021-07-16
Filing date: 2021-07-16
Publication date: 2022-02-08
Anticipated expiration: 2031-07-16

Abstract

The utility model belongs to the technical field of sewage treatment, and discloses paint spraying wastewater integrated treatment equipment which comprises a water inlet pipe, a filter box, a transfer box, a Fenton reaction box, a flocculation box, a sedimentation tank, a membrane bioreactor, a water outlet pipe and a PLC (programmable logic controller) control system, wherein the water inlet pipe, the filter box, the transfer box, the Fenton reaction box, the flocculation box, the sedimentation tank, the membrane bioreactor and the water outlet pipe are sequentially connected, the sedimentation tank is connected with a sludge tank, the filter box comprises a fixed block, a filter net bag, a connecting rope, a fixed clamp, a clamping block and a pressure sensor, the transfer box comprises a liquid level meter and a flowmeter, a pH meter and an oxidation-reduction potential online analyzer are arranged in the Fenton reaction box, the flocculation box comprises a medicament adding device and a stirring device, and the sedimentation tank comprises a sludge discharge pipe and a sludge scraping device. The utility model has the beneficial effects that: the device has the advantages of simple structure, low energy consumption, good purification effect on the paint spraying wastewater, high automation degree and reduced manpower consumption, and the purification process is regulated and controlled by adopting a PLC (programmable logic controller) control system, a pressure sensor, a liquid level meter, a flowmeter and the like.

Description

Paint spraying wastewater integrated treatment equipment

[ technical field ] A method for producing a semiconductor device

The utility model relates to the technical field of sewage treatment, in particular to paint spraying wastewater integrated treatment equipment.

[ background of the utility model ]

Water is an indispensable important resource for human survival, drinking water, cooking water, cleaning water, industrial production water and the like, and water is needed everywhere in life. A large amount of sewage is produced every day in the world, and the sewage is not treated and causes pollution to the environment if being thrown away or discharged. Moreover, the sewage can be reused after being treated and purified, and the treatment process and the treatment standard of the sewage are different according to different purposes. The spray paint is one of common surface treatment procedures in furniture processing, vehicle processing and other processes, and contains pollutants such as resin, surfactant, heavy metal ions, phosphate radical, paint, pigment, organic solvent and the like, so that the COD is high, and the COD is one of the accepted sources of wastewater which is difficult to treat. In the prior art, a plurality of methods and devices for treating the paint spraying wastewater exist, the devices have various structures, and the treatment effect on the paint spraying wastewater is poor; some devices are cumbersome to operate and require a significant amount of manual labor. Therefore, it is necessary to provide a paint spraying wastewater treatment apparatus which has a simple structure and low energy consumption, can treat and purify paint spraying wastewater efficiently, and can reduce waste of water resources. In addition, the automation degree of the equipment is high, and the consumption of manpower can be reduced.

[ Utility model ] content

The utility model discloses paint spraying wastewater integrated treatment equipment which can effectively solve the technical problems related to the background technology.

In order to achieve the purpose, the technical scheme of the utility model is as follows:

the paint spraying wastewater integrated treatment equipment comprises a water inlet pipe, a filter box, a transfer box, a Fenton reaction box, a flocculation box, a sedimentation tank, a membrane bioreactor, a water outlet pipe and a PLC (programmable logic controller) control system which are connected in sequence, wherein the sedimentation tank is connected with a sludge tank;

the filter box is a hollow box body without a top cover, a filter box water outlet is formed in the bottom of the filter box, a fixing block is arranged on the outer wall of the filter box, a through hole penetrates through the fixing block in the vertical direction, the filter box further comprises a filter net bag, a connecting rope, a fixing clamp, a clamping block and a pressure sensor, the filter net bag comprises a net frame and a filter screen, the filter screen is fixed on the net frame, the diameter of the net frame is larger than that of the box body on the top of the filter box, the connecting rope penetrates through the through hole of the fixing block, the fixing clamp is fixed above the connecting rope, the clamping block is fixed below the connecting rope, the pressure sensor is fixed at the bottom of the fixing block, the filter screen is placed in the filter box, the fixing clamp fixes the net frame, and paint spraying wastewater is discharged into the filter screen through the water inlet pipe to be filtered;

the transfer box is positioned below the filter box, filtered wastewater enters the transfer box through a water outlet of the filter box, a transfer box water outlet pipe and a liquid level meter are arranged in the transfer box, an inlet of the transfer box water outlet pipe is positioned at the bottom of the transfer box, an outlet of the transfer box water outlet pipe is positioned at the top of the transfer box, and a water pump and a flow meter are arranged at an outlet of the transfer box water outlet pipe;

the membrane bioreactor comprises a Fenton reaction box, a pH meter and an oxidation-reduction potential on-line analyzer are arranged in the Fenton reaction box, the flocculation box comprises a reagent adding device and a stirring device, an electromagnetic valve is arranged at the outlet of the reagent adding device, the bottom of the flocculation box is in a funnel shape and is provided with a water outlet with an electromagnetic valve, the sedimentation tank is positioned below the flocculation box and comprises a sludge discharge pipe and a sludge scraping device, the sludge discharge pipe is connected with the sludge tank, water in the sedimentation tank is discharged into the membrane bioreactor, the membrane bioreactor comprises an aeration device, the water outlet of the membrane bioreactor is connected with a water outlet pipe, and a sand filtration device and a water quality detector are sequentially arranged on the water outlet pipe;

the PLC control system with pressure sensor, the level gauge, the water pump, the flowmeter, the pH meter, the oxidation-reduction potential on-line analyzer, the water quality detector, agitating unit, solenoid valve are connected, the PLC control system still is connected with display screen and alarm device.

As a preferred improvement of the present invention: the filter box is cylindrical in shape.

As a preferred improvement of the present invention: the fixed block connect the rope the fixation clamp with the quantity of fixture block is 4, the fixed block is in filter tank evenly distributed all around.

As a preferred improvement of the present invention: the number of the pressure sensors is 4.

As a preferred improvement of the present invention: the outer wall of the filter box is provided with a hook, and when the fixing clamp is not fixed to the net frame, the hook is used for fixing the fixing clamp.

As a preferred improvement of the present invention: and an electromagnetic valve is arranged at the water outlet of the filter box.

As a preferred improvement of the present invention: the filtering net bag also comprises a holding rod.

As a preferred improvement of the present invention: and an active carbon filtering device is also arranged between the sand filtering device and the water quality detector.

As a preferred improvement of the present invention: the paint spraying wastewater integrated treatment equipment further comprises a filter press.

As a preferred improvement of the present invention: the water outlet pipe is connected with a paint spray booth, and the purified water is used as water for the paint spray booth.

The utility model has the following beneficial effects:

1. the device has simple structure and low energy consumption, adopts the modes of filtration, Fenton reaction, flocculation, biological treatment and sand filtration to treat and purify the paint spraying wastewater, has good purification effect, adopts a PLC control system, a pressure sensor, a liquid level meter, a flowmeter and the like to regulate and control the purification process, has high automation degree, and reduces the consumption of manpower;

2. the purified water is recycled, so that the consumption of water resources is reduced;

3. set up water quality testing appearance and detect the quality of water after purifying to remind the workman to overhaul equipment through display screen and alarm device, guarantee the purification quality of the waste water that sprays paint.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

FIG. 1 is a schematic structural view of the paint spraying wastewater integrated treatment apparatus of the present invention;

FIG. 2 is a schematic view of the structure of the filtration tank of the present invention;

fig. 3 is an enlarged schematic view of a point a in fig. 2.

In the figure: 1-water inlet pipe, 2-filter tank, 21-filter tank water outlet, 22-fixed block, 23-filter net bag, 231-net frame, 232-filter screen, 24-connecting rope, 25-fixing clamp, 26-clamping block, 27-pressure sensor, 28-hook, 3-transfer tank, 31-transfer tank water outlet pipe, 311-water pump, 312-flowmeter, 32-liquid level meter, 4-Fenton reaction tank, 5-flocculation tank, 6-sedimentation tank, 7-membrane bioreactor, 8-water outlet pipe and 9-sludge tank.

[ detailed description ] embodiments

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1, the utility model provides paint spraying wastewater integrated treatment equipment, which comprises a water inlet pipe 1, a filter box 2, a transit box 3, a fenton reaction box 4, a flocculation box 5, a sedimentation tank 6, a membrane bioreactor 7, a water outlet pipe 8 and a PLC control system, wherein the sedimentation tank 6 is connected with a sludge tank 9. Specifically, the waste water warp of spraying paint the inlet tube 1 gets into the rose box 2 filters, and the water storage after the filtration is in transfer case 3. And the water in the transfer box 3 is quantitatively conveyed to the Fenton reaction box 4 for treatment. Then, the wastewater is discharged into the flocculation tank 5 for flocculation, and flocculated water and flocculated particles are discharged into the sedimentation tank 6 for sedimentation. After the precipitation treatment, water is conveyed to the membrane bioreactor 7, and solid precipitates are discharged into the sludge tank 9. And the water treated by the membrane bioreactor 7 is discharged through the water outlet pipe 8. The PLC control system regulates and controls the whole wastewater treatment process, so that the manpower consumption is reduced.

Referring to fig. 2-3, the filter box 2 is a hollow box without a top cover, the bottom of the filter box 2 is provided with a filter box drain 21, the outer wall of the filter box 2 is provided with a fixing block 22, the fixing block 22 is provided with a through hole in a vertical direction, the filter box 2 further includes a filter string bag 23, a connecting rope 24, a fixing clamp 25, a clamping block 26 and a pressure sensor 27, the filter string bag 23 includes a net frame 231 and a filter net 232, the filter net 232 is fixed on the net frame 231, the diameter of the net frame 231 is larger than that of the box at the top of the filter box 2, the connecting rope 24 passes through the through hole of the fixing block 22, the fixing clamp 25 is fixed above the connecting rope 24, the clamping block 26 is fixed below the connecting rope 24, the pressure sensor 27 is fixed at the bottom of the fixing block 22, the filter net 232 is placed in the filter box 2, the fixing clamp 25 fixes the net frame 231, the paint spraying wastewater is discharged into the filter screen 232 through the water inlet pipe 1 for filtering. Specifically, the filtering net bag 23 is movably placed on the filtering box 2 to filter the wastewater. The water falls to the bottom of the filter tank 2 through the filter screen 232, and solid impurities are left in the filter screen 232. The fixing clip 25 fixes the screen frame 231, pulls the fixture block 26 to move upwards, and the fixture block 26 contacts with the pressure sensor 27 to apply pressure to the pressure sensor 27. Along with the increase of solid impurity quantity, pressure sensor 27's numerical value constantly increases, and when reaching the default, PLC control system reminds the workman to clear up impurity in the filter screen 232. The inlet pipe 1 can be temporarily closed, the fixing clamp 25 is removed, the filter net bag 23 is lifted, and impurities are poured into the garbage pool. The filter screen 232 is the filtration pore all around, and solid impurity deposit does not also influence the filtration of waste water at the bottom.

The transfer case 3 is located below the filter case 2, filtered wastewater enters the transfer case 3 through the filter case water outlet 21, a transfer case water outlet pipe 31 and a liquid level meter 32 are arranged in the transfer case 3, an inlet of the transfer case water outlet pipe 31 is located at the bottom of the transfer case 3, an outlet of the transfer case water outlet pipe 31 is located at the top of the transfer case 3, and a water pump 311 and a flow meter 312 are arranged at an outlet of the transfer case water outlet pipe 31. Specifically, the transit box 3 stores the filtered water, and the water pump 311 and the flowmeter 312 can convey the water to the fenton reaction box 4 in a timed and quantitative manner, so that the subsequent flocculation process is facilitated. The liquid level meter 32 monitors the water amount in the transfer box 3, and when the water amount is higher than the minimum preset value, the subsequent purification process is carried out; and when the water quantity is higher than the highest preset value, the water inlet pipe 1 is closed, workers are reminded of the overhigh waste water quantity, and other modes are carried out for treatment.

And a pH meter and an oxidation-reduction potential on-line analyzer are arranged in the Fenton reaction box 4 to monitor the Fenton reaction process. The flocculation box 5 comprises a medicament adding device and a stirring device, wherein an electromagnetic valve is arranged at the outlet of the medicament adding device, and is used for adding medicaments such as flocculating agents in a timing and quantitative mode. The bottom of the flocculation tank 5 is shaped like a funnel and is provided with a water outlet with an electromagnetic valve, so that water and solid particles can be conveniently discharged into the sedimentation tank 6. The sedimentation tank 6 is located the flocculation tank 5 below, the sedimentation tank 6 includes sludge discharge pipe and mud scraping device, the sludge discharge union coupling sludge impoundment 9. The water in the sedimentation tank 6 is discharged into the membrane bioreactor 7, the membrane bioreactor 7 comprises an aeration device, the water outlet of the membrane bioreactor 7 is connected with the water outlet pipe 8, and the water outlet pipe 8 is sequentially provided with a sand filtration device and a water quality detector. The device and the detecting instrument are both in the prior art, and the structure of the device and the detecting instrument is not specifically described.

The PLC control system is connected with the pressure sensor 27, the liquid level meter 32, the water pump 311, the flow meter 312, the pH meter, the oxidation-reduction potential on-line analyzer, the water quality detector, the stirring device and the electromagnetic valve, and the PLC control system is further connected with a display screen and an alarm device. The PLC control system monitors the treatment and purification process of the paint spraying wastewater according to the numerical values of the detection instruments, regulates and controls the treatment process through equipment such as an electromagnetic valve, displays all parameters for workers through the display screen, and reminds the workers to overhaul through the alarm device when the equipment is abnormal. It should be further noted that other components may be employed to achieve the above-mentioned effects, which are within the inventive concept of the present invention and are within the scope of the present invention.

Preferably, the filter box 2 is a cylinder, the number of the fixing blocks 22, the connecting ropes 24, the fixing clips 25 and the number of the fixing blocks 26 are all 4, the fixing blocks 22 are uniformly distributed around the filter box 2, and the stability of the filter net bag 23 is improved. The number of the pressure sensors 27 is 4, so that the measurement result is more accurate, and when one of the pressure sensors is damaged, the equipment can normally operate.

Be equipped with couple 28 on the rose box 2 outer wall, when taking off the fixation clamp 25, mention filtration string bag 23, when falling impurity to the rubbish pond, can with the fixation clamp 25 is fixed in rose box 2 makes things convenient for workman's operation.

Preferably, rose box outlet 21 department is equipped with the solenoid valve, filtration string bag 23 still includes the holding rod, sand filtering device with still be equipped with active carbon filter equipment between the water quality testing appearance, the waste water integration treatment facility that sprays paint still includes the pressure filter.

The outlet pipe 8 is connected with the paint spray booth, and the purified water is used as the water for the paint spray booth, so that the water is recycled, and the waste is reduced.

The working principle is as follows: the waste water warp of spraying paint 1 row of inlet tube goes into filter screen 232 filters, and the water storage after the filtration is in transfer case 3. The water in the transfer box 3 is quantitatively conveyed to the Fenton reaction box 4 for treatment through the transfer box water outlet pipe 31, the water pump 311 and the flowmeter 312. Then, the wastewater is discharged into the flocculation tank 5 for flocculation, and flocculated water and flocculated particles are discharged into the sedimentation tank 6 for sedimentation. After the precipitation treatment, water is conveyed to the membrane bioreactor 7, and solid precipitates are discharged into the sludge tank 9. And the water treated by the membrane bioreactor 7 is discharged after passing through the water outlet pipe 8, the sand filtering device and the activated carbon filtering device.

While embodiments of the utility model have been disclosed above, it is not limited to the applications set forth in the specification and the embodiments, which are fully applicable to various fields of endeavor for which the utility model pertains, and further modifications may readily be made by those skilled in the art, it being understood that the utility model is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.

Claims

1. The integrative treatment equipment for the paint spraying wastewater is characterized in that: the device comprises a water inlet pipe (1), a filter box (2), a transfer box (3), a Fenton reaction box (4), a flocculation box (5), a sedimentation tank (6), a membrane bioreactor (7), a water outlet pipe (8) and a PLC (programmable logic controller) control system which are connected in sequence, wherein the sedimentation tank (6) is connected with a sludge tank (9);

the filter box (2) is a hollow box body without a top cover, a filter box water outlet (21) is arranged at the bottom of the filter box (2), a fixing block (22) is arranged on the outer wall of the filter box (2), a through hole is formed in the vertical direction of the fixing block (22) in a penetrating mode, the filter box (2) further comprises a filter net bag (23), a connecting rope (24), a fixing clamp (25), a clamping block (26) and a pressure sensor (27), the filter net bag (23) comprises a net frame (231) and a filter screen (232), the filter screen (232) is fixed on the net frame (231), the diameter of the net frame (231) is larger than that of the box body at the top of the filter box (2), the connecting rope (24) penetrates through the through hole of the fixing block (22), the fixing clamp (25) is fixed above the connecting rope (24), the clamping block (26) is fixed below the connecting rope (24), and the pressure sensor (27) is fixed at the bottom of the fixing block (22), the filter screen (232) is placed in the filter box (2), the fixing clamp (25) is used for fixing the screen frame (231), and the paint spraying wastewater is discharged into the filter screen (232) through the water inlet pipe (1) for filtering;

the transfer box (3) is positioned below the filter box (2), filtered wastewater enters the transfer box (3) through a filter box water outlet (21), a transfer box water outlet pipe (31) and a liquid level meter (32) are arranged in the transfer box (3), an inlet of the transfer box water outlet pipe (31) is positioned at the bottom of the transfer box (3), an outlet of the transfer box water outlet pipe (31) is positioned at the top of the transfer box (3), and a water pump (311) and a flow meter (312) are arranged at the outlet of the transfer box water outlet pipe (31);

a pH meter and an oxidation-reduction potential on-line analyzer are arranged in the Fenton reaction box (4), the flocculation box (5) comprises a medicament adding device and a stirring device, an electromagnetic valve is arranged at the outlet of the medicament adding device, the bottom of the flocculation box (5) is in a funnel shape and is provided with a water outlet with an electromagnetic valve, the sedimentation tank (6) is positioned below the flocculation box (5), the sedimentation tank (6) comprises a sludge discharge pipe and a sludge scraping device, the sludge discharge pipe is connected with the sludge tank (9), water in the sedimentation tank (6) is discharged into the membrane bioreactor (7), the membrane bioreactor (7) comprises an aeration device, the water outlet of the membrane bioreactor (7) is connected with the water outlet pipe (8), and a sand filtration device and a water quality detector are sequentially arranged on the water outlet pipe (8);

the PLC control system with pressure sensor (27), level gauge (32), water pump (311), flowmeter (312), the pH meter, the online analyzer of oxidation-reduction potential the water quality detector agitating unit, solenoid valve are connected, PLC control system still is connected with display screen and alarm device.

2. The paint spraying wastewater integrated treatment facility according to claim 1, characterized in that: the filter box (2) is cylindrical.

3. The paint spraying wastewater integrated treatment facility according to claim 1, characterized in that: the number of the fixing blocks (22), the connecting ropes (24), the fixing clamps (25) and the number of the clamping blocks (26) are all 4, and the fixing blocks (22) are uniformly distributed on the periphery of the filter box (2).

4. The paint spraying wastewater integrated treatment facility according to claim 3, characterized in that: the number of the pressure sensors (27) is 4.

5. The paint spraying wastewater integrated treatment facility according to claim 1, characterized in that: and a hook (28) is arranged on the outer wall of the filter box (2).

6. The paint spraying wastewater integrated treatment facility according to claim 1, characterized in that: an electromagnetic valve is arranged at the water outlet (21) of the filter box.

7. The paint spraying wastewater integrated treatment facility according to claim 1, characterized in that: the filtering net bag (23) also comprises a holding rod.

8. The paint spraying wastewater integrated treatment facility according to claim 1, characterized in that: and an active carbon filtering device is also arranged between the sand filtering device and the water quality detector.

9. The paint spraying wastewater integrated treatment facility according to claim 1, characterized in that: the paint spraying wastewater integrated treatment equipment further comprises a filter press.

10. The paint spraying wastewater integrated treatment facility according to claim 1, characterized in that: and the water outlet pipe (8) is connected with a paint spray booth, and the purified water is used as water for the paint spray booth.