CN209522742U - A kind of coating wastewater processing system - Google Patents

Abstract

The utility model discloses a kind of coating wastewater processing systems, including the wastewater collection pond being sequentially communicated, waste water lifting well, oil separator, sedimentation basin, flotation tank, pH conditioning tank, intermediate pool, hydrolysis acidification pool, sbr reactor pond, fiber ball filter and reuse pool, multiple grids being distributed vertically are fixed in wastewater collection pond, and wastewater collection pond is connect by sewage pump with waste water lifting well, dross discharge outlet is provided at the top of oil separator, dross discharge outlet is connected with floating oil collecting slot, the bottom of flotation tank is connected with sludge treatment equipment, waste water lifting well is also connect by surmounting pipeline with intermediate pool, surmount and is provided with regulating valve on pipeline, reuse pool is fixed with reuse water pipe, overflow pipe and disinfection water pipe, disinfection water pipe is connected with sterilization pool, sterilization pool is connected with chlorine dioxide generator；Advantage is no pollution to the environment, processing cost is lower and treatment effect is preferable.

Description

A kind of coating wastewater processing system

Technical field

The utility model relates to water-treatment technology field more particularly to a kind of coating wastewater processing systems.

Background technique

Manufacturing technique for painting dressing is widely used in the industries such as mechanical automobile, motorcycle, household electrical appliances, cabinet-wood and electronics, and Coating wastewater refers to be produced after the techniques such as acid pickling and rust removing, degreasing, table tune solidifyingization, passivation, electrophoresis and spray painting in paint line Raw waste water, especially in painting dressing automobiles, 90% or more of outer surface is coating surface.However, there is waste water in coating process It generates, the wastewater flow rate generated with the development of industry increases year by year, and the processing of coating wastewater has become current sewage treatment project A great problem, it is anxious to be resolved.

The processing method of coating wastewater is mainly chemical treatment method at present, mainly there is neutralisation, coacervation etc., wherein The neutralisation is that waste water is carried out acid-base neutralization, adjusts the pH value (pH value) of solution, it is made to be in neutrality or approach neutrality；And Coacervation is that flocculating agent appropriate is added in waste water, and the micelle in waste water is made to collide with each other and be condensed into biggish particle, from It is separated in solution.But above-mentioned processing method still generates the high paint organic matter of a large amount of water content, be easy to cause secondary Pollution, in addition coating circulating water pool bottom can also generate a large amount of sediments, and coating recirculated water needs to regularly replace, and water consumption is caused to increase Add, increases the cost of processing coating wastewater.

Summary of the invention

The main purpose of the utility model is to provide a kind of no pollution to the environment, processing cost is lower and treatment effect compared with Good coating wastewater processing system.

To achieve the above objectives, the technical solution adopted in the utility model are as follows: a kind of coating wastewater processing system, including according to The wastewater collection pond of secondary connection, waste water lifting well, oil separator, sedimentation basin, flotation tank, pH conditioning tank, intermediate pool, hydrolysis acidification Pond, sbr reactor pond, fiber ball filter and reuse pool are fixed with multiple lattice being distributed vertically in the wastewater collection pond Grid, and the wastewater collection pond is connect by sewage pump with the waste water lifting well, the top of the oil separator It is provided with dross discharge outlet, the dross discharge outlet is connected with floating oil collecting slot, and the bottom of the flotation tank is connected with dirt Mud processing unit, the waste water lifting well are also connect by surmounting pipeline with the intermediate pool, and described surmounts on pipeline It is provided with regulating valve, the reuse pool is fixed with reuse water pipe, overflow pipe and disinfection water pipe, the disinfection water pipe and connects It is connected to sterilization pool, the sterilization pool is connected with chlorine dioxide generator.

The inside of the sedimentation basin is divided into just deep gouge, PAC slot and PAM slot, the first deep gouge along water (flow) direction Place is provided with calcium hydroxide chemicals dosing plant, and PAC chemicals dosing plant is provided at the PAC slot, is provided at the PAM slot PAM chemicals dosing plant.

The PAC chemicals dosing plant includes the first dosing pump and PAC medicine dissolving tank, the import of first dosing pump and institute The PAC medicine dissolving tank connection stated, the outlet of first dosing pump is connect with the PAC slot.

The PAM chemicals dosing plant includes the second dosing pump and PAM medicine dissolving tank, the import of second dosing pump and institute The PAM medicine dissolving tank connection stated, the outlet of second dosing pump is connect with the PAM slot.

The sludge treatment equipment includes sludge delivery pump, sludge concentration tank, sludge press filtration pumps and filter press, described The import of sludge delivery pump is connect with the bottom of the flotation tank, and the outlet of the sludge delivery pump is dense with the sludge The connection of contracting slot, the sludge press filtration pump is connected between the sludge concentration tank and the filter press, and is used for institute The sludge in sludge concentration tank stated is delivered to the filter press.

The filter press is one of chamber-type press filter, belt filter press, membrane pressure filter and plate and frame filter press.

Be provided with hydrochloric acid delivery device at the pH conditioning tank, the hydrochloric acid delivery device include third dosing pump and Hydrochloric acid pond, the import of the third dosing pump are connect with the hydrochloric acid pond, the outlet of the third dosing pump with it is described PH conditioning tank connection, the exit of the pH conditioning tank be additionally provided with pH detection meter.

The bottom of the hydrolysis acidification pool is fixed with aerator, and stirring is further fixed in the hydrolysis acidification pool Device.

The filter layer being made of fibrous nodules is fixed in the fiber ball filter.

Compared with the prior art, the advantages of the utility model are: the setting of wastewater collection pond is mainly used for collecting automobile The waste water that Painting Shop generates, is stored in waste water lifting well by sewage pump；The setting of oil separator so that greasy dirt and Sewage obtains pre-separation；The setting of sedimentation basin can make the grease of organic pass through the precipitating that chemical reaction becomes larger particles Then object is delivered to outside by sludge treatment equipment；The setting of flotation tank can make lighter oily substance float on the surface, It is convenient to clean；The setting of pH conditioning tank can adjust back the pH value of sewage, make sewage close to neutrality；Waste water lifting well is by surmounting pipe Road is connect with intermediate pool, excessive to prevent the sewage of waste water lifting well from assembling, and is shunted, while in the preferable feelings of sewage situation Intermediate pool can be flowed directly under condition, save processing cost；In hydrolysis acidification pool under a large amount of hydrolytic bacterias, acidification bacterium effect, Insoluble hydrolysis of organic matter is dissolved organic matter, converts small point of easily biological-degradable for the macromolecular substances of difficult for biological degradation Sub- substance establishes good basis so as to improve the biodegradability of waste water for subsequent processing；Sbr reactor pond is gone by aerobic reaction Except organic pollutants such as COD in sewage；Fiber ball filter can effectively remove the suspended matter in water, it is ensured that go out aqueous suspension It is up to standard；Reuse pool is connect by sterilizing water pipe with chlorine dioxide generator, can kill the bacterium in water, it is ensured that water quality reaches Mark；The utility model no pollution to the environment, processing cost are lower and treatment effect is preferable.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model.

Specific embodiment

Invention is described in further detail below in conjunction with figure embodiment.

Embodiment one: as shown, a kind of coating wastewater processing system, including be sequentially communicated wastewater collection pond 1, waste water Winding shaft 2, oil separator 3, sedimentation basin 4, flotation tank 5, pH conditioning tank 6, intermediate pool 7, hydrolysis acidification pool 8, sbr reactor pond 9, fiber Ball filter 91 and reuse pool 92 are fixed with multiple grids 11 being distributed vertically, and wastewater collection pond 1 in wastewater collection pond 1 It is connect by sewage pump 12 with waste water lifting well 2, the top of oil separator 3 is provided with dross discharge outlet 31, dross discharge outlet 31 are connected with floating oil collecting slot 32, and the bottom of flotation tank 5 is connected with sludge treatment equipment 51, and the top of pH conditioning tank 6 is fixed with PH doser, waste water lifting well 2 are also connect with intermediate pool 7 by surmounting pipeline 21, surmount and be provided with regulating valve 22 on pipeline 21, Reuse pool 92 is fixed with reuse water pipe 93, overflow pipe 94 and disinfection water pipe 95, and disinfection water pipe 95 is connected with sterilization pool, sterilizes Pond is connected with chlorine dioxide generator 96.

In the present embodiment, the inside of sedimentation basin 4 is divided into just deep gouge 41, PAC slot 42 and PAM slot 43 along water (flow) direction, It is provided with calcium hydroxide chemicals dosing plant 411 at first deep gouge 41, PAC chemicals dosing plant is provided at PAC slot 42, is arranged at PAM slot 43 There is PAM chemicals dosing plant.Calcium hydroxide, PAC(aluminium polychloride are added into waste water) and PAM(polyacrylamide), make in waste water The reactions such as grease, phosphatide, gleditsia sinensis generate alumen ustum shape sludge, sludge is sent outside by sludge treatment equipment 51, to greatly improve The effect of processing sewage.

In the present embodiment, PAC chemicals dosing plant includes the first dosing pump 421 and PAC medicine dissolving tank 422, the first dosing pump 421 Import is connect with PAC medicine dissolving tank 422, and the outlet of the first dosing pump 421 is connect with PAC slot 42.

In the present embodiment, PAM chemicals dosing plant includes the second dosing pump 431 and PAM medicine dissolving tank 432, the second dosing pump 431 Import is connect with PAM medicine dissolving tank 432, and the outlet of the second dosing pump 431 is connect with PAM slot 43.

In the present embodiment, sludge treatment equipment 51 includes sludge delivery pump 52, sludge concentration tank 53,54 and of sludge press filtration pump The import of filter press 55, sludge delivery pump 52 is connect with the bottom of flotation tank 5, the outlet of sludge delivery pump 52 and sludge concentration tank 53 connections, sludge press filtration pump 54 is connected between sludge concentration tank 53 and filter press 55, and being used for will be in sludge concentration tank 53 Sludge is delivered to filter press 55.In the structure, sludge delivery pump 52 uses screw pump, and it is dense sludge to be efficiently delivered to sludge Sludge in sludge concentration tank 53 is then delivered to filter press 55 by contracting slot 53, sludge press filtration pump 54, and filter press 55 is then able to achieve solid Liquid separation, the water after separation reduce waste, the sludge after separation is then directly transported outward by pipeline flow-direction intermediate pool 7.

In the present embodiment, filter press 55 is plate and frame filter press 55.

In the present embodiment, hydrochloric acid delivery device is provided at pH conditioning tank 6, hydrochloric acid delivery device includes third dosing pump 61 Import with hydrochloric acid pond 62, third dosing pump 61 is connect with hydrochloric acid pond 62, and the outlet of third dosing pump 61 and pH conditioning tank 6 connect It connects, the exit of pH conditioning tank 6 is additionally provided with pH detection meter 63.When the waste water that detects that treated of pH detection meter 63 is in alkalinity When, third dosing pump 61 is opened, the hydrochloric acid in hydrochloric acid pond 62 is transported in pH conditioning tank 6, is neutralized by third dosing pump 61 Reaction is more in line with the requirement of environmental protection so that the waste water in pH conditioning tank 6 be made to be in neutrality.

In the present embodiment, the bottom of hydrolysis acidification pool 8 is fixed with aerator 81, and is further fixed in hydrolysis acidification pool 8 Blender 82.In the structure, in hydrolysis acidification pool 8 under a large amount of hydrolytic bacterias, acidification bacterium effect, insoluble hydrolysis of organic matter is Dissolved organic matter converts the macromolecular substances of difficult for biological degradation to the small-molecule substance of easily biological-degradable, so as to improve useless The biodegradability of water establishes good basis for subsequent processing.And aerator 81 and blender 82 are used cooperatively, then improve catalysis Effect.

In the present embodiment, the filter layer being made of fibrous nodules is fixed in fiber ball filter 91.

Claims (9)

1. a kind of coating wastewater processing system, it is characterised in that: including be sequentially communicated wastewater collection pond, waste water lifting well, every Oil sump, sedimentation basin, flotation tank, pH conditioning tank, intermediate pool, hydrolysis acidification pool, sbr reactor pond, fiber ball filter and recycle-water Pond is fixed with multiple grids being distributed vertically in the wastewater collection pond, and the wastewater collection pond passes through sewage lifting Pump is connect with the waste water lifting well, and dross discharge outlet, the dross discharge outlet are provided at the top of the oil separator It is connected with floating oil collecting slot, the bottom of the flotation tank is connected with sludge treatment equipment, and the waste water lifting well also passes through Surmount pipeline to connect with the intermediate pool, described surmounting is provided with regulating valve on pipeline, the reuse pool is fixed with Reuse water pipe, overflow pipe and disinfection water pipe, the disinfection water pipe are connected with sterilization pool, and the sterilization pool is connected with dioxy Change chlorine generator.

2. a kind of coating wastewater processing system according to claim 1, it is characterised in that: the inside edge of the sedimentation basin Water (flow) direction is divided into just deep gouge, PAC slot and PAM slot, is provided with calcium hydroxide chemicals dosing plant at the first deep gouge, described PAC slot at be provided with PAC chemicals dosing plant, be provided with PAM chemicals dosing plant at the PAM slot.

3. a kind of coating wastewater processing system according to claim 2, it is characterised in that: the PAC chemicals dosing plant packet The first dosing pump and PAC medicine dissolving tank are included, the import of first dosing pump is connect with the PAC medicine dissolving tank, and described The outlet of one dosing pump is connect with the PAC slot.

4. a kind of coating wastewater processing system according to claim 2, it is characterised in that: the PAM chemicals dosing plant packet The second dosing pump and PAM medicine dissolving tank are included, the import of second dosing pump is connect with the PAM medicine dissolving tank, and described The outlet of two dosing pumps is connect with the PAM slot.

5. a kind of coating wastewater processing system according to claim 1, it is characterised in that: the sludge treatment equipment packet Include sludge delivery pump, sludge concentration tank, sludge press filtration pump and filter press, the import of the sludge delivery pump and the air bearing The bottom in pond connects, and the outlet of the sludge delivery pump is connect with the sludge concentration tank, and the sludge press filtration, which pumps, to be connected It connects between the sludge concentration tank and the filter press, and for the sludge in the sludge concentration tank to be delivered to The filter press.

6. a kind of coating wastewater processing system according to claim 5, it is characterised in that: the filter press is van-type pressure One of filter, belt filter press, membrane pressure filter and plate and frame filter press.

7. a kind of coating wastewater processing system according to claim 1, it is characterised in that: be arranged at the pH conditioning tank Have a hydrochloric acid delivery device, the hydrochloric acid delivery device includes third dosing pump and hydrochloric acid pond, the third dosing pump into Mouth is connect with the hydrochloric acid pond, and the outlet of the third dosing pump is connect with the pH conditioning tank, and the pH is adjusted The exit in pond is additionally provided with pH detection meter.

8. a kind of coating wastewater processing system according to claim 1, it is characterised in that: the bottom of the hydrolysis acidification pool Portion is fixed with aerator, and is further fixed on blender in the hydrolysis acidification pool.

9. a kind of coating wastewater processing system according to claim 1, it is characterised in that: in the fiber ball filter It is fixed with the filter layer being made of fibrous nodules.