CN111821723A - Paint spraying wastewater treatment system and treatment method thereof - Google Patents
Paint spraying wastewater treatment system and treatment method thereof Download PDFInfo
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- CN111821723A CN111821723A CN202010633809.3A CN202010633809A CN111821723A CN 111821723 A CN111821723 A CN 111821723A CN 202010633809 A CN202010633809 A CN 202010633809A CN 111821723 A CN111821723 A CN 111821723A
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- sedimentation tank
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- 239000003973 paint Substances 0.000 title claims abstract description 94
- 238000005507 spraying Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 15
- 238000011282 treatment Methods 0.000 title claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 102
- 238000004062 sedimentation Methods 0.000 claims abstract description 81
- 238000007790 scraping Methods 0.000 claims abstract description 60
- 238000007667 floating Methods 0.000 claims abstract description 40
- 238000001179 sorption measurement Methods 0.000 claims abstract description 28
- 239000002351 wastewater Substances 0.000 claims abstract description 28
- 239000002893 slag Substances 0.000 claims abstract description 22
- 238000003756 stirring Methods 0.000 claims abstract description 12
- 239000000375 suspending agent Substances 0.000 claims description 19
- 238000001514 detection method Methods 0.000 claims description 18
- 238000002347 injection Methods 0.000 claims description 11
- 239000007924 injection Substances 0.000 claims description 11
- 244000005700 microbiome Species 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 230000033001 locomotion Effects 0.000 claims description 4
- 239000006260 foam Substances 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 239000013013 elastic material Substances 0.000 claims description 2
- 238000011017 operating method Methods 0.000 claims 1
- 239000013049 sediment Substances 0.000 abstract description 10
- 238000004140 cleaning Methods 0.000 abstract description 6
- 239000004922 lacquer Substances 0.000 abstract description 6
- 238000011221 initial treatment Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 4
- 238000004945 emulsification Methods 0.000 description 4
- 239000000571 coke Substances 0.000 description 3
- 210000003437 trachea Anatomy 0.000 description 3
- 239000000470 constituent Substances 0.000 description 2
- 230000003311 flocculating effect Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 238000007592 spray painting technique Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Classifications
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- 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
- B01D21/0006—Settling tanks provided with means for cleaning and maintenance
-
- 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
- B01D21/18—Construction of the scrapers or the driving mechanisms for settling tanks
-
- 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
- B01D21/245—Discharge mechanisms for the sediments
-
- 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
- B01D21/28—Mechanical auxiliary equipment for acceleration of sedimentation, e.g. by vibrators or the like
- B01D21/286—Means for gentle agitation for enhancing flocculation
-
- 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
-
- 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
- B01D21/34—Controlling the feed distribution; Controlling the liquid level ; Control of process parameters
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Removal Of Floating Material (AREA)
- Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
Abstract
The invention discloses a paint spraying wastewater treatment system and a working method, which are suitable for the primary treatment of paint spraying wastewater in a sedimentation tank, and the paint spraying wastewater treatment system comprises: the device comprises a scraping device arranged in a sedimentation tank, a stirring device arranged in the sedimentation tank and a paint slag adsorption device arranged in the sedimentation tank; the sedimentation tank is communicated with the water inlet pipe through a control valve; the control valve is communicated with the controller. The paint slag adsorption device can move up and down along with the water level through the floating body, and can be continuously used in the water circulation process; the paint residue adsorption device absorbs and removes the scum on the water surface by a floating negative pressure adsorption principle, thereby avoiding the scum which can not be salvaged by the fishing net in the traditional fishing net; can clear up the dross that the sedimentation tank edge condenses through the scraper blade of scraping device, improve lacquer sediment adsorption equipment efficiency, reduce the repeated process of the cleaning work of later stage to the sedimentation tank.
Description
Technical Field
The invention belongs to the field of wastewater treatment, and particularly relates to a system and a method for treating paint spraying wastewater.
Background
Firstly, adding a paint suspending agent into a sedimentation tank, forming coagula floating on the water surface in the paint wastewater, then collecting the coagula, and continuously performing circulating purification to finish the treatment of the paint wastewater; paint suspending agent dissolves the paint molecule of aquatic, and remove to glue and emulsification characteristic, the oil paint sediment decomposition thing floats after the emulsification, at the salvage in-process, the edge of sedimentation tank glues a large amount of oil paint sediment decomposers of adhesion, be unfavorable for the qualification rate of salvage, traditional salvage mode drags for the net and salvages, form the foamy flocculating constituent in aqueous after the oil paint sediment decomposes, the drags for the net and very easily leaks the paint sediment that is less than the mesh size, increase the burden of increase circulation and cause the increase of circulation water consumption, can cause the jam of water pump in the sedimentation tank even. Secondly, moisture in the paint residue decomposer is easy to be condensed into coke type adherends on the surface of the sedimentation tank after being evaporated, so that the later-period cleaning is inconvenient.
Disclosure of Invention
The purpose of the invention is as follows: provides a system and a method for treating paint spraying wastewater to solve the problems in the prior art.
The technical scheme is as follows: a system for treating waste water from paint spraying, which is suitable for preliminary treatment of waste water from paint spraying in a settling tank, comprising:
the device comprises a scraping device arranged in a sedimentation tank, a stirring device arranged in the sedimentation tank and a paint slag adsorption device arranged in the sedimentation tank; the sedimentation tank is communicated with the water inlet pipe through a control valve; the control valve is communicated with the controller.
In a further embodiment, a high-pressure spraying device is further arranged on the scraping device; the high-pressure injection device is sleeved on a central pipe in the scraping device, connected to a water distribution pipe interface on one side of the central pipe, and provided with a nozzle on the water distribution pipe.
In a further embodiment, the scraping device comprises: the wall scraping device comprises a driving motor fixedly installed at the top of the sedimentation tank, a rotating shaft in transmission connection with the output shaft end of the driving motor, a hydraulic pipe sleeved on the rotating shaft, and a wall scraping component sleeved at the other end of the telescopic pipe, wherein the rotating shaft is driven to rotate by the power of the driving motor so as to drive the wall scraping component to rotate, and the hydraulic pipe can simultaneously drive the wall scraping component to perform reciprocating telescopic motion in the rotating process of the wall scraping component; the driving motor is electrically connected with the controller.
In a further embodiment, the wall scraping assembly comprises: the device comprises a mounting cylinder fixedly connected with the output end of a hydraulic pipe, three connecting frames fixedly inserted in the mounting cylinder, and a scraper hinged at the other end of each connecting frame; the connecting frame is annularly arranged in 360 degrees; and an elastic component is arranged at the other end of the connecting frame and the other end of the hinged wall.
In a further embodiment, the paint residue adsorption device comprises a collecting cylinder floating in the sedimentation tank, a negative pressure pipe arranged above the collecting cylinder, and an air pump communicated with the other end of the negative pressure pipe; the negative pressure pipe is made of elastic materials.
In a further embodiment, the collection cartridge comprises: the suction nozzle comprises a floating body, a suction nozzle body arranged on the floating body and a gathering bracket fixedly connected to the floating body; the other end of the suction nozzle body is communicated with a negative pressure pipe; one end of the suction nozzle body and the wall surface of the floating body extend to a slag piling area of the gathering bracket to form a slag suction channel; the floating body is filled with gas, so that the floating body can float on the water surface.
In a further embodiment, the gathering bracket comprises a driver arranged on the floating body, a driving gear connected to an output shaft of the driver, a driven gear matched with the driving gear, and a rotating shaft sleeved at the axis of the driven gear, wherein a plurality of propellers are arranged on the rotating shaft; the driver is provided with a waterproof shell; the transmission force of the output shaft of the driver drives the driving gear to rotate, the rotary power drives the driven gear to rotate through the driving gear, and finally the rotating shaft fixedly connected with the driven gear rotates, so that the propeller rotates on the water surface relative to the slag suction channel, and scum on the water surface is accelerated to enter the slag suction channel; the driver is internally provided with a Bluetooth remote control switch which is communicated with the controller.
In a further embodiment, a microorganism detection device and a water level detection device are also arranged in the sedimentation tank; the microorganism detection device and the water level detection device are both communicated with the controller, and the lowest water level and the highest water level in the sedimentation tank are set in the controller; the highest water level is not higher than the scraping device, and the lowest water level is not higher than the height of the water outlet pipe.
In a further embodiment, the following working steps are included:
s1, opening a control valve in a controller to enable the paint spraying wastewater to enter a sedimentation tank through a water inlet pipe, adding a paint suspending agent into the sedimentation tank, and starting a stirring device to enable the paint suspending agent to be fully contacted with the paint spraying wastewater in the sedimentation tank;
s2, decomposing the paint in the paint wastewater by using a paint suspending agent to generate foam type suspended slag which rises to the water surface;
s3, stopping the stirring device, putting the collecting cylinder into the sedimentation tank, remotely starting the driver, driving the rotating shaft to rotate by the output shaft of the driver, and further enabling the propeller to rotate on the water surface so as to enable the scum gathered outside the bracket to enter the scum suction channel;
s4, starting an air pump to enable the air pressure in the suction nozzle body to be smaller than the external air pressure by pumping air in the negative pressure pipe, and further enabling the scum gathered in the scum suction channel to further suck the interior of the suction nozzle body; the extracted scum enters a drain pipe through a negative pressure pipe, and the collecting barrel is taken out after the absorption is finished;
s5, scum adhered to the edge of the sedimentation tank is removed by a scraping device and a high-pressure injection device, a driving motor is started to further enable a rotating shaft to rotate to drive a wall scraping assembly to rotate, liquid mixed with paint suspending agent and water is injected into a central pipe before the wall scraping assembly rotates, the mixed liquid of the paint suspending agent enters a water diversion pipe and is finally sprayed out through a nozzle, and the nozzle is arranged on a scraping plate, so that sprayed water columns are scattered at the edge of the sedimentation tank in a conical radial mode, paint residues adhered to the edge of the sedimentation tank and not fully emulsified are emulsified, decomposed and gathered to the center of the sedimentation tank, and can be sucked by a collecting cylinder;
s6, the controller automatically starts the control valve to open through the data fed back by the microorganism detection device and the water level detection device, and detects the water level in the opening process of the high-pressure injection device, so that the water level is prevented from submerging the high-pressure injection device and further causing the blockage of scum in the wastewater to the nozzle.
Has the advantages that: compared with the traditional sedimentation tank, the invention has the following advantages:
1) the paint residue adsorption device moves up and down along with the water level through the floating body and can be continuously used in the water circulation process;
2) the paint residue adsorption device absorbs and removes the scum on the water surface by a floating negative pressure adsorption principle, thereby avoiding the scum which can not be salvaged by the fishing net in the traditional fishing net;
3) can clear up the dross that the sedimentation tank edge condenses through the scraper blade of scraping device, improve lacquer sediment adsorption equipment efficiency, reduce the repeated process of the cleaning work of later stage to the sedimentation tank.
Drawings
FIG. 1 is a schematic view showing the construction of a paint spray wastewater treatment system according to the present invention.
Fig. 2 is a schematic view of the construction of the scraping device of the invention.
FIG. 3 is a perspective view of the paint residue adsorption apparatus of the present invention.
Figure 4 is a cross-sectional view of a collection cartridge of the present invention.
Fig. 5 is a schematic view of the construction of the inventive gathering bracket.
Fig. 6 is a schematic structural view of the negative pressure tube of the present invention.
Figure 7 is a schematic illustration of the configuration of the knock out pipe of the present invention.
Fig. 8 is a schematic view of the construction of the propeller of the present invention.
The reference signs are: the device comprises a sedimentation tank 1, a water inlet pipe 10, a water outlet pipe 11, a scraping device 2, a driving motor 20, a rotating shaft 21, a hydraulic pipe 22, a wall scraping component 23, a mounting cylinder 230, a connecting frame 231, a scraping plate 232, an elastic component 233, a paint residue adsorption device 3, a collecting cylinder 30, a floating body 301, a suction nozzle body 302, a gathering support 303, a driver 3030, a driving gear 3031, a driven gear 3032, a rotating shaft 3033, a propeller 3034, a connecting plate 3035, a residue adsorption channel 3036, a negative pressure pipe 31, an air pump 32, a sewage discharge pipe 33, an air pipe 34, a stirring device 4, a high-pressure spraying device 5, a central pipe 50, a water distribution pipe connector 51 and a nozzle 52.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the invention.
The applicant finds that the paint wastewater is primarily purified, firstly, after the paint suspending agent is added into the sedimentation tank, coagulates floating on the water surface are formed in the paint wastewater, and then the coagulates are collected and continuously subjected to circulating purification to finish the treatment of the paint wastewater; the paint suspending agent dissolves paint molecules in water and removes the characteristics of adhesion and emulsification, because the spray painting room has a plurality of spray paints in the spray painting process, other high molecular polymers such as UV materials used as binders need to be mixed and used in the paint diluting process, and most of the paint mist coagulant is directly put into the sedimentation tank, the waste water in the sedimentation tank cannot be uniformly and effectively subjected to integrated global decomposition, the paint residue decomposers float upwards after emulsification, a large amount of paint residue decomposers adhere to the edge of the sedimentation tank in the fishing process, the fishing efficiency is not facilitated, and the water in the paint residue decomposers is easy to condense into coke type adherends on the surface of the sedimentation tank after evaporation; secondly, the fishing net is fished by the traditional fishing mode, the decomposed paint slag forms foam-shaped flocs in water, the paint slag smaller than the mesh size is easy to leak from the fishing net, the circulating load is increased, the circulating water consumption is increased, and even the water pump in the sedimentation tank is blocked.
A system for treating painting waste water as shown in fig. 1 to 8, comprising: the device comprises a sedimentation tank 1, a water inlet pipe 10, a water outlet pipe 11, a scraping device 2, a driving motor 20, a rotating shaft 21, a hydraulic pipe 22, a wall scraping component 23, a mounting cylinder 230, a connecting frame 231, a scraping plate 232, an elastic component 233, a paint residue adsorption device 3, a collecting cylinder 30, a floating body 301, a suction nozzle body 302, a gathering support 303, a driver 3030, a driving gear 3031, a driven gear 3032, a rotating shaft 3033, a propeller 3034, a connecting plate 3035, a residue adsorption channel 3036, a negative pressure pipe 31, an air pump 32, a sewage discharge pipe 33, an air pipe 34, a stirring device 4, a high-pressure spraying device 5, a central pipe 50, a water distribution pipe connector 51 and a nozzle 52.
Wherein the treatment system is arranged in the sedimentation tank 1 to finish the primary treatment of the paint spraying wastewater; scraping device 2, agitating unit 4 and lacquer sediment adsorption equipment 3 all set up in sedimentation tank 1, to adding the waste water behind the paint suspension in sedimentation tank 1 and stir evenly, adsorb and cleaning process, avoid increasing hydrologic cycle's clearance burden and causing the increase of circulation water consumption in the processing procedure, avoid the decomposition thing to cause the jam of each component in sedimentation tank 1.
The sedimentation tank 1 is communicated with a water inlet pipe 10 through a control valve; the control valve is communicated with the controller, and a microorganism detection device and a water level detection device are also arranged in the sedimentation tank 1; the microorganism detection device and the water level detection device are both communicated with the controller, and the lowest water level and the highest water level in the sedimentation tank 1 are set in the controller; the highest water level is not higher than the scraping device 2, and the lowest water level is not higher than the height of the water outlet pipe 11.
After the water in the paint residue decomposition products is evaporated, the water is easily condensed into coke type adhesion substances on the surface of the sedimentation tank 1, and the scraping device 2 is also provided with a high-pressure spraying device 5; the high-pressure injection device 5 is sleeved on a central pipe 50 in the scraping device 2, a water distribution pipe connector 51 connected to one side of the central pipe 50, and a nozzle 52 arranged on the water distribution pipe. . The distributive pipe is made of an elastic corrugated pipe, and meanwhile, an elastic sleeve is arranged at the distributive pipe connector 51 and can twist 360 degrees and contract axially along with the scraper 232, so that the nozzle 52 is ensured. Normal movement of the device. The other end of the central tube 50 is connected with a rotary joint, and water is continuously supplied in the transmission process along with the rotary shaft 21; due to the nozzle 52. The water column sprayed out is spread at the edge of the sedimentation tank 1 in a conical radiation type by being arranged on the scraping plate 232, so that the paint residues which are adhered to the edge of the sedimentation tank 1 and are not fully emulsified are emulsified, decomposed and gathered to the center of the sedimentation tank 1, and can be sucked by the collecting cylinder 30.
Further, for the adhered matters which cannot be removed by the high-pressure spraying device 5, the scraping device 2 is used for cleaning, and the scraping device 2 comprises: the device comprises a driving motor 20 fixedly arranged at the top of the sedimentation tank 1, a rotating shaft 21 in transmission connection with the output shaft end of the driving motor 20, a hydraulic pipe 22 sleeved on the rotating shaft 21, and a wall scraping assembly 23 sleeved at the other end of the telescopic pipe. The wall scraping assembly 23 comprises: the installation cylinder 230 is fixedly connected with the output end of the hydraulic pipe 22, the three connecting frames 231 fixedly inserted in the installation cylinder 230, and the scraping plate 232 is hinged at the other end of the connecting frames 231; the connecting frame 231 is annularly arranged in 360 degrees; the other end of the connecting frame 231 and the hinge wall is provided with an elastic component 233. The power of the driving motor 20 drives the rotating shaft 21 to rotate, so as to drive the wall scraping assembly 23 to rotate, and the hydraulic pipe 22 can drive the wall scraping assembly 23 to perform reciprocating telescopic motion in the process of rotating the wall scraping assembly 23; the driving motor 20 is electrically connected with the controller; the mounting cylinder 230 is driven by the driving motor 20 to rotate, and then drives the three connecting frames 231 to rotate by taking the mounting cylinder 230 as a base point, the connecting frames 231 are driven in the rotating process, the scraping plates 232 hinged at the other ends of the connecting frames 231 are drawn close to the wall of the sedimentation tank 1 downwards, the maximum rotating distance of the scraping plates 232 is based on the maximum distance which can be elongated by the elastic component 233, and therefore the rotating track of the scraping wall component 23 can be properly adjusted along with the size of the wall of the sedimentation tank.
Traditional salvage mode scoop net is salvaged, forms the foamy flocculating constituent in aqueous after the lacquer sediment decomposes, and the scoop net very easily leaks the lacquer sediment that is less than the mesh size, increases endless burden and causes the increase of circulation water consumption, can cause the jam of water pump in the sedimentation tank 1 even. The adsorption of the scum is further completed by adopting an automatic adsorption device floating along with the water level, and the paint residue adsorption device 3 comprises a collecting cylinder 30 floating in the sedimentation tank 1, a negative pressure pipe 31 arranged above the collecting cylinder 30 and an air pump 32 communicated with the other end of the negative pressure pipe 31; the negative pressure pipe 31 is made of an elastic corrugated pipe and is convenient to lift and contract along with the water level in the adsorption process. The collecting cylinder 30 includes: the suction nozzle comprises a floating body 301, a suction nozzle body 302 arranged on the floating body 301, and a gathering bracket 303 fixedly connected to the floating body 301; the other end of the suction nozzle body 302 is communicated with a negative pressure pipe 31; one end of the suction nozzle body 302 and the wall surface of the floating body 301 extend to a slag accumulation area of the gathering bracket 303 to form a slag absorption channel 3036, an inlet at the bottom of the suction nozzle body 302 is in an inverted cone hollow structure, and a tightening opening can accelerate scum to enter the negative pressure pipe 31 through the suction nozzle body 302; after the air pump 32 is started, the air pressure of the negative pressure pipe 31 and the suction nozzle body 302 communicated with the negative pressure pipe 31 is smaller than the external air pressure, and then the scum accumulated in the scum suction channel 3036 can be adsorbed; the floating body 301 is filled with gas, and the floating body 301 is a sphere. The floating body 301 can float on the water surface; the gathering bracket 303 comprises a driver 3030 arranged on the floating body 301, a driving gear 3031 connected to an output shaft of the driver 3030, a driven gear 3032 matched with the driving gear 3031, and a rotating shaft 3033 sleeved at the axis of the driven gear 3032, wherein a plurality of propellers 3034 are arranged on the rotating shaft 3033; two ends of the rotating shaft 3033 are penetrated with connecting plates 3035 in a transmission manner, the other end of each connecting plate 3035 is hinged to the outer side of the suction nozzle body 302, the length of each connecting plate 3035 is not less than the diameter of the floating body 301 and is greater than the radius of the floating body 301, so that the propeller 3034 is always in contact with the water surface, finally the rotating shaft 3033 fixedly connected with the driven gear 3032 is rotated, the propeller 3034 rotates on the water surface to the slag suction channel 3036, and scum on the water surface is accelerated to enter the slag suction channel 3036; the driver 3030 is internally provided with a Bluetooth remote control switch, and the driver 3030 is internally provided with a Bluetooth remote control switch which is communicated with the controller. The driver 3030 is provided with a waterproof outer shell to perform waterproof operation on the driver 3030.
In order to avoid dross to block up air pump 32 in the adsorption process, the bottom intercommunication blow off pipe 33 of negative pressure pipe 31, one side that negative pressure pipe 31 communicates air pump 32 is equipped with the type of falling U trachea 34, the type of falling U trachea 34 is perpendicular and reverse setting with blow off pipe 33, and a large amount of moisture of carrier enters blow off pipe 33 behind negative pressure pipe 31 and the type of falling U trachea 34 intercommunication department in the dross, prevents that dross from blocking up air pump 32 mouth. As shown in fig. 6, the inverted U-shaped air pipe 34 extends in a vertical direction for a certain distance and has a bent portion, in which case the waste water is decelerated as it flows upward while being bent from the pipe 31, and the scum enters the drain pipe 33. In this case, the scum is separated from the moisture by the action of deceleration, gravity, buoyancy and resistance. Through at least three kink, slow down, improve the contact time of dross and body, and then make it can get into blow off pipe 33. Be provided with the filter bulb in the junction of blow off pipe 33 and the type of falling U pipe 34, have porous structure on filtering, adsorb the dross, in inhaling the blow off pipe with the dross, and then separate.
The working principle is as follows: opening a control valve in a controller to enable the paint spraying wastewater to enter a sedimentation tank 1 through a water inlet pipe 10, adding a paint suspending agent into the sedimentation tank 1, and opening a stirring device 4 to enable the paint suspending agent to be fully contacted with the paint spraying wastewater in the sedimentation tank 1; the paint in the paint wastewater is decomposed by a paint suspending agent to generate foam type suspended slag which rises to the water surface; stopping the stirring device 4, putting the collecting cylinder 30 into the sedimentation tank 1, remotely starting the driver 3030, driving the rotating shaft 3033 to rotate by the output shaft of the driver 3030, and further enabling the propeller 3034 to rotate on the water surface so as to enable the scum gathered outside the support 303 to enter the scum absorbing channel 3036; the air pump 32 is started to enable the air pressure in the suction nozzle body 302 to be smaller than the external air pressure by pumping air into the negative pressure pipe 31, so that the scum gathered in the scum suction channel 3036 is enabled to further enter the suction nozzle body 302; the extracted scum enters a drain pipe 33 through a negative pressure pipe 31, and the collecting barrel 30 is taken out after the absorption is finished; the scum adhered to the edge of the sedimentation tank 1 is removed by a scraping device 2 and a high-pressure spraying device 5, a driving motor 20 is started to further rotate a rotating shaft 21 to drive a wall scraping assembly 23 to rotate, the wall scraping assembly 23 rotates to go to a central pipe 50 to be filled with liquid mixed with paint suspending agent and water, and the mixed liquid of the paint suspending agent enters a water diversion pipe and finally passes through a nozzle 52. Ejection is due to nozzle 52. The water column is arranged on the scraper 232, so that the sprayed water column is spread at the edge of the sedimentation tank 1 in a conical radiation type, the paint residues which are adhered to the edge of the sedimentation tank 1 and are not fully emulsified are promoted to be emulsified and decomposed and gathered to the center of the sedimentation tank 1, and the paint residues can be sucked by the collecting cylinder 30; meanwhile, the controller automatically starts the control valve to open according to the data fed back by the microorganism detection device and the water level detection device, and detects the water level in the opening process of the high-pressure injection device 5, so that the water level submerges the high-pressure injection device 5 and further scum in the wastewater is prevented from flowing to the nozzle 52. The clogging of (2).
The paint slag adsorption device 3 moves up and down along with the water level through the floating body 301, and can be continuously used in the water circulation process; the paint residue adsorption device 3 absorbs and removes the floating residues on the water surface by the floating negative pressure adsorption principle, thereby avoiding the floating residues which can not be salvaged by the fishing net in the traditional fishing net; can clear up the dross that the sedimentation tank 1 edge condenses through 2 scraper blades 232 of scraping device, improve 3 efficiency of lacquer sediment adsorption equipment, reduce the repeated process of later stage to the cleaning work of sedimentation tank 1.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the embodiments, and various equivalent changes can be made to the technical solution of the present invention within the technical idea of the present invention, and these equivalent changes are within the protection scope of the present invention.
Claims (9)
1. The utility model provides a to waste water treatment system sprays paint, is applicable to the preliminary treatment to the waste water of spraying paint in the sedimentation tank, its characterized in that includes:
the device comprises a scraping device arranged in a sedimentation tank, a stirring device arranged in the sedimentation tank and a paint slag adsorption device arranged in the sedimentation tank; the sedimentation tank is communicated with the water inlet pipe through a control valve; the control valve is communicated with the controller.
2. The paint spraying wastewater treatment system of claim 1, wherein the scraping device is further provided with a high pressure spraying device; the high-pressure injection device is sleeved on a central pipe in the scraping device, connected to a water distribution pipe interface on one side of the central pipe, and provided with a nozzle on the water distribution pipe.
3. The paint spraying wastewater treatment system of claim 1, wherein the scraping device comprises: the wall scraping device comprises a driving motor fixedly installed at the top of the sedimentation tank, a rotating shaft in transmission connection with the output shaft end of the driving motor, a hydraulic pipe sleeved on the rotating shaft, and a wall scraping component sleeved at the other end of the telescopic pipe, wherein the rotating shaft is driven to rotate by the power of the driving motor so as to drive the wall scraping component to rotate, and the hydraulic pipe can simultaneously drive the wall scraping component to perform reciprocating telescopic motion in the rotating process of the wall scraping component; the driving motor is electrically connected with the controller.
4. A paint spraying wastewater treatment system as claimed in claim 3, wherein the wall scraping assembly comprises: the device comprises a mounting cylinder fixedly connected with the output end of a hydraulic pipe, three connecting frames fixedly inserted in the mounting cylinder, and a scraper hinged at the other end of each connecting frame; the connecting frame is annularly arranged in 360 degrees; and an elastic component is arranged at the other end of the connecting frame and the other end of the hinged wall.
5. The paint spraying wastewater treatment system according to claim 1, wherein the paint residue adsorption device comprises a collecting cylinder floating in the sedimentation tank, a negative pressure pipe arranged above the collecting cylinder, and an air pump communicated with the other end of the negative pressure pipe; the negative pressure pipe is made of elastic materials.
6. The paint spraying wastewater treatment system of claim 5 wherein the collection canister comprises: the suction nozzle comprises a floating body, a suction nozzle body arranged on the floating body and a gathering bracket fixedly connected to the floating body; the other end of the suction nozzle body is communicated with a negative pressure pipe; one end of the suction nozzle body and the wall surface of the floating body extend to a slag piling area of the gathering bracket to form a slag suction channel; the floating body is filled with gas, so that the floating body can float on the water surface.
7. The paint spraying wastewater treatment system as claimed in claim 6, wherein the gathering bracket comprises a driver mounted on the floating body, a driving gear connected to an output shaft of the driver, a driven gear matched with the driving gear, and a rotating shaft sleeved at the axis of the driven gear, wherein a plurality of propellers are arranged on the rotating shaft; the driver is provided with a waterproof shell; the transmission force of the output shaft of the driver drives the driving gear to rotate, the rotary power drives the driven gear to rotate through the driving gear, and finally the rotating shaft fixedly connected with the driven gear rotates, so that the propeller rotates on the water surface relative to the slag suction channel, and scum on the water surface is accelerated to enter the slag suction channel; and a Bluetooth remote control switch is arranged in the driver and is communicated with the controller.
8. The paint spraying wastewater treatment system according to claim 1, wherein a microorganism detection device and a water level detection device are further provided in the sedimentation tank; the microorganism detection device and the water level detection device are both communicated with the controller, and the lowest water level and the highest water level in the sedimentation tank are set in the controller; the highest water level is not higher than the scraping device, and the lowest water level is not higher than the height of the water outlet pipe.
9. The operating method of the paint spraying wastewater treatment system according to claim 1, comprising the following operating steps:
s1, opening a control valve in a controller to enable the paint spraying wastewater to enter a sedimentation tank through a water inlet pipe, adding a paint suspending agent into the sedimentation tank, and starting a stirring device to enable the paint suspending agent to be fully contacted with the paint spraying wastewater in the sedimentation tank;
s2, decomposing the paint in the paint wastewater by using a paint suspending agent to generate foam type suspended slag which rises to the water surface;
s3, stopping the stirring device, putting the collecting cylinder into the sedimentation tank, remotely starting the driver, driving the rotating shaft to rotate by the output shaft of the driver, and further enabling the propeller to rotate on the water surface so as to enable the scum gathered outside the bracket to enter the scum suction channel;
s4, starting an air pump to enable the air pressure in the suction nozzle body to be smaller than the external air pressure by pumping air in the negative pressure pipe, and further enabling the scum gathered in the scum suction channel to further suck the interior of the suction nozzle body; the extracted scum enters a drain pipe through a negative pressure pipe, and the collecting barrel is taken out after the absorption is finished;
s5, scum adhered to the edge of the sedimentation tank is removed by a scraping device and a high-pressure injection device, a driving motor is started to further enable a rotating shaft to rotate to drive a wall scraping assembly to rotate, liquid mixed with paint suspending agent and water is injected into a central pipe before the wall scraping assembly rotates, the mixed liquid of the paint suspending agent enters a water diversion pipe and is finally sprayed out through a nozzle, and the nozzle is arranged on a scraping plate, so that sprayed water columns are scattered at the edge of the sedimentation tank in a conical radial mode, paint residues adhered to the edge of the sedimentation tank and not fully emulsified are emulsified, decomposed and gathered to the center of the sedimentation tank, and can be sucked by a collecting cylinder;
s6, the controller automatically starts the control valve to open through the data fed back by the microorganism detection device and the water level detection device, and detects the water level in the opening process of the high-pressure injection device, so that the water level is prevented from submerging the high-pressure injection device and further causing the blockage of scum in the wastewater to the nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010633809.3A CN111821723A (en) | 2020-07-02 | 2020-07-02 | Paint spraying wastewater treatment system and treatment method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010633809.3A CN111821723A (en) | 2020-07-02 | 2020-07-02 | Paint spraying wastewater treatment system and treatment method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN111821723A true CN111821723A (en) | 2020-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010633809.3A Withdrawn CN111821723A (en) | 2020-07-02 | 2020-07-02 | Paint spraying wastewater treatment system and treatment method thereof |
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| Country | Link |
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| CN (1) | CN111821723A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112439227A (en) * | 2020-11-02 | 2021-03-05 | 李看 | Radial flow sedimentation tank floating mud eliminating device |
| CN115193865A (en) * | 2022-07-19 | 2022-10-18 | 瑞金市辉腾建筑材料有限公司 | Concrete regeneration additive production and processing equipment |
| CN115849537A (en) * | 2022-11-23 | 2023-03-28 | 苏珊珊 | Treatment process of oily heavy metal industrial wastewater |
-
2020
- 2020-07-02 CN CN202010633809.3A patent/CN111821723A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112439227A (en) * | 2020-11-02 | 2021-03-05 | 李看 | Radial flow sedimentation tank floating mud eliminating device |
| CN115193865A (en) * | 2022-07-19 | 2022-10-18 | 瑞金市辉腾建筑材料有限公司 | Concrete regeneration additive production and processing equipment |
| CN115193865B (en) * | 2022-07-19 | 2024-01-09 | 瑞金市辉腾建筑材料有限公司 | Production and processing equipment for concrete regeneration additive |
| CN115849537A (en) * | 2022-11-23 | 2023-03-28 | 苏珊珊 | Treatment process of oily heavy metal industrial wastewater |
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