CN210559769U - Aluminum profile spraying wastewater purification treatment system - Google Patents

Abstract

The scheme discloses an aluminum profile spraying wastewater purification treatment system in the field of industrial sewage purification, which comprises a sewage discharge pipeline, a reservoir, primary purification equipment and fine purification equipment; the primary purification equipment comprises an adjusting reaction tank and a sedimentation tank, and the adjusting reaction tank is communicated with the sedimentation tank; the sewage discharge pipeline is communicated with the reservoir, and the reservoir is communicated with the regulating reaction tank; the fine purification equipment comprises an ultrafiltration device, and the ultrafiltration device is communicated with a reverse osmosis device; the sedimentation tank is communicated with the ultrafiltration device. The procedure of this scheme of adoption purification aluminium alloy spraying waste water is simple, and equipment cost is low, and the pure water that finally obtains reaches the discharge standard of national regulation, and direct emission also can not the polluted environment, and the pure water after the purification can carry out recycle, avoids the wasting of resources.

Description

Aluminum profile spraying wastewater purification treatment system

Technical Field

The utility model relates to an industrial sewage purification field, concretely relates to aluminium alloy spraying effluent purification treatment system.

Background

Before powder spraying of the aluminum profile, in order to increase the adhesive force of the powder on the aluminum profile, a layer of chromium-free passivation film needs to be plated on the aluminum profile. To obtain a passivation film with a good effect, impurities such as oil stains, aluminum scraps, dust and the like on the surface of the section bar need to be cleaned. The cleaning agent for cleaning the surface of the aluminum profile mainly comprises hydrochloric acid, phosphoric acid and citric acid, the cleaning process is checked for acid cleaning, acid liquor is carried on the surface of the aluminum profile after cleaning, and the aluminum profile needs to be washed for several times; the chromium-free passivation also requires a water wash, which results in the water used for the water wash having too high an acid content or too high an electrical conductivity, which requires replacement. The replaced water has heavy acid content, is directly discharged, influences the environment, is discharged after acid-base neutralization treatment, and wastes water resources.

SUMMERY OF THE UTILITY MODEL

The utility model provides an aluminium alloy spraying effluent water purification treatment system to it is heavier because of containing acid to solve the water after the aluminium alloy pickling, can the polluted environment after directly discharging and waste the problem of water resource.

The aluminum profile spraying wastewater purification treatment system comprises a sewage discharge pipeline, a reservoir, primary purification equipment and fine purification equipment; the primary purification equipment comprises an adjusting reaction tank and a sedimentation tank, and the adjusting reaction tank is communicated with the sedimentation tank; the sewage discharge pipeline is communicated with the reservoir, and the reservoir is communicated with the regulating reaction tank; the fine purification equipment comprises an ultrafiltration device, and the ultrafiltration device is communicated with a reverse osmosis device; the sedimentation tank is communicated with the ultrafiltration device.

The application mode of the scheme is as follows: the method comprises the steps of inputting spraying wastewater of an aluminum profile at a water inlet end of a sewage discharge pipeline, namely sewage after cleaning acid liquor on the surface of the aluminum profile, accumulating the wastewater in a reservoir, performing primary purification on the purification treatment, discharging the wastewater in the reservoir into an adjustment reaction tank, adding lime water into the adjustment reaction tank according to the pH value condition of the wastewater for adjustment until the pH value is 8-8.5 after pH test paper detection, adding a precipitator to flocculate acid-base substances in the wastewater for slag-water separation, and adding a defoaming agent to eliminate water bubbles according to the water bubble condition in the treated water.

After the wastewater is treated in the regulation reaction tank, acid-base slag discharged to the sedimentation tank sinks to the bottom in the sedimentation tank, and the upper layer is clear water. And (2) finely purifying the clear water in the sedimentation tank, firstly passing through an ultrafiltration device, intercepting large and small particles, suspended matters, organic matters and colloid in the water by using the ultrafiltration device, purifying the clear water for the first time and then entering a reverse osmosis device, filtering dissolved salts, microorganisms, organic matters and colloid in the water by using the reverse osmosis device, and obtaining the pure water with the conductivity of about 10 us/cm.

The procedure of this scheme of adoption purification aluminium alloy spraying waste water is simple, and equipment cost is low, and the pure water that finally obtains reaches the discharge standard of national regulation, and direct emission also can not the polluted environment, and the pure water after the purification can carry out recycle, avoids the wasting of resources.

Further, the primary purification equipment also comprises a clean water tank, and the sedimentation tank is communicated with the ultrafiltration device through the clean water tank. The filter speed of ultrafiltration device compares in free flow's water velocity can slow some, however the grain slag separation in the sedimentation tank also needs little time, so in order to make the clear water that obtains can both effectual filtration, and does not influence the continuous use of sedimentation tank, this scheme adds the clear water pond before ultrafiltration device and stores the clear water, avoids the clear water to stop in the sedimentation tank, influences the sedimentation tank to next batch sewage purification's time.

Further, elementary clarification plant still includes the sludge impoundment, and the sludge impoundment still communicates with the bottom of sedimentation tank, and the sludge impoundment still communicates there is the pressure filter, is equipped with the sludge pump between pressure filter and the sludge impoundment. After the precipitated sludge is collected in a centralized manner, the sludge is compressed by the filter press, so that the occupied space of the sludge is reduced.

Furthermore, the reverse osmosis device is communicated with a pure water recycling conveying pipeline and a return pipeline, and the return pipeline is communicated with the reservoir. The pure water recycling conveying pipeline is additionally arranged, so that the purified pure water reaching the standard can be recycled, and the water is conveyed to the reservoir to be purified again under the condition of not reaching the standard.

Further, the regulation reaction tank comprises a first regulation reaction tank and a second regulation reaction tank which are communicated with each other, the first regulation reaction tank is communicated with the reservoir, and the second regulation reaction tank is communicated with the sedimentation tank.

Drawings

Figure 1 is the schematic diagram of the aluminum profile spraying wastewater purification treatment system.

Detailed Description

The following is further detailed by the specific embodiments:

the aluminum profile cleaning device is sequentially provided with an aluminum single plate oil removing groove, a spare groove, an aluminum profile oil removing groove, two pure water recovery grooves (two are respectively a pure water recovery groove ① a pure water recovery groove), a pure water recovery groove ② and the chromium-free passivation groove according to the cleaning process required by an aluminum profile, ① the water inlet end of the sewage discharge pipeline is respectively ① independently communicated with the aluminum single plate oil removing groove, the spare groove, the aluminum profile oil removing groove, the pure water recovery groove ① the chromium-free passivation groove.

As shown in fig. 1; aluminum profile spraying waste water purification treatment system, including sewage pipes, cistern, primary clarification plant and meticulous clarification plant, sewage pipes and cistern intercommunication.

The primary purification equipment comprises an adjusting reaction tank, a sludge tank, a sedimentation tank and a clean water tank, the upper part of the sedimentation tank is communicated with the clean water tank, the sludge tank is communicated with the bottom of the sedimentation tank, the sludge tank is also communicated with a filter press, and a sludge pump is arranged between the filter press and the sludge tank. The regulating reaction tank comprises a first regulating reaction tank and a second regulating reaction tank which are communicated with each other, and the first regulating reaction tank is communicated with the reservoir; the second regulating reaction tank is communicated with the sedimentation tank, the water storage tank is communicated with the first regulating reaction tank, and a water lifting pump is arranged between the water storage tank and the first regulating reaction tank.

The top in first regulation reaction tank and second regulation reaction tank all is equipped with the motor, and the output shaft of motor has the stirring rake, and the stirring rake is located first regulation reaction tank and second regulation reaction tank, when carrying out pH regulation, precipitation reaction and defoaming in the sewage and handle, the starter motor makes the stirring rake rotate and lets sewage and lime wash, precipitant or defoaming agent fully contact and take place the reaction.

The fine purification equipment comprises an ultrafiltration device, and the ultrafiltration device is communicated with a reverse osmosis device; the clean water tank is communicated with the ultrafiltration device; the reverse osmosis device is communicated with a pure water recycling conveying pipeline and a return pipeline, the return pipeline is communicated with the reservoir, and the pure water recycling conveying pipeline is independently communicated with all groove bodies except a recycled pure water groove in the aluminum profile cleaning device.

The first adjusting reaction tank can be communicated with a precipitator adding device and a lime water adding device, wherein the precipitator adding device is filled with a precipitator, and the lime water adding device is filled with lime water; and the second reaction tank is communicated with a defoaming agent adding device, and a defoaming agent is arranged in the defoaming agent adding device. In this way, the corresponding adding device can be used for adding the precipitator, the lime water or the defoaming agent into the corresponding reaction tank through manual control, and compared with manual addition, the labor intensity of workers is reduced. Because the used precipitator, the lime water and the defoaming agent are all in liquid states, the liquid state is communicated through a pipeline, and a control valve is arranged at any position of the communication, so that whether the liquid state is added or not is controlled.

The communication among the structures is realized by using pipelines, and the water outlet end of each groove body and the position where the groove bodies and the tank bodies are communicated with the pipelines is provided with a valve to control whether water is discharged or not. The filter press is a mechanical pressing filter press of-630 type of Wei Hua chemical machinery plant in Yuzhou city.

the method comprises the steps of conveying the sewage into a reservoir from a sewage discharge pipeline to accumulate, pumping the sewage in the reservoir into a first regulation reaction tank by using a water lift pump, adding lime water into the first regulation reaction tank by using a lime water adding device, regulating the pH to 8-8.5, adding a precipitator into the first regulation reaction tank by using a precipitator adding device, discharging water into a second regulation reaction tank according to the condition of bubbles in the treated water after acid-base substances in the wastewater are flocculated to separate the slag from the water, and adding a defoaming agent into the second regulation reaction tank by using a defoaming agent adding system to eliminate the bubbles.

after the wastewater is treated in the second adjusting reaction tank, acid and alkali residues discharged to the sedimentation tank sink to the bottom in the sedimentation tank, clear water is arranged on the upper layer, the clear water in the sedimentation tank is discharged to a clear water tank for caching, the clear water in the clear water tank is subjected to fine purification, firstly, the clear water passes through an ultrafiltration device, particles, suspended matters, organic matters and colloid in the water are intercepted by the ultrafiltration device, the clear water is subjected to primary purification and then enters a reverse osmosis device, the reverse osmosis device filters dissolved salts, microorganisms, organic matters and colloid in the water, the treated water is clear, the conductivity is about 10us/cm to obtain pure water, and the obtained pure water is conveyed to an aluminum single-plate oil removing tank, a standby tank, an aluminum profile oil removing tank, a pure water tank ①, a pure water tank ② and a chromium-free passivation tank through a pure water recycling conveying pipeline for recycling.

After the water is treated by the reverse osmosis device, if the detected conductivity of the water does not meet the discharge requirement, the water needs to be conveyed to a reservoir through a return pipeline and is purified again through the purification process.

The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims (5)

1. Aluminium alloy spraying effluent clean processing system, its characterized in that: comprises a sewage discharge pipeline, a reservoir, primary purification equipment and fine purification equipment; the primary purification equipment comprises an adjusting reaction tank and a sedimentation tank, and the adjusting reaction tank is communicated with the sedimentation tank; the sewage discharge pipeline is communicated with the reservoir, and the reservoir is communicated with the regulating reaction tank; the fine purification equipment comprises an ultrafiltration device, and the ultrafiltration device is communicated with a reverse osmosis device; the sedimentation tank is communicated with the ultrafiltration device.

2. The aluminum profile spraying wastewater purification treatment system as claimed in claim 1, characterized in that: the primary purification equipment further comprises a clean water tank, and the sedimentation tank is communicated with the ultrafiltration device through the clean water tank.

3. The aluminum profile spraying wastewater purification treatment system as claimed in claim 2, characterized in that: the primary purification equipment further comprises a sludge tank, the sludge tank is communicated with the bottom of the sedimentation tank, the sludge tank is also communicated with a pressure filter, and a sludge pump is arranged between the pressure filter and the sludge tank.

4. The aluminum profile spraying wastewater purification treatment system as claimed in claim 3, characterized in that: the reverse osmosis device is communicated with a pure water recycling conveying pipeline and a return pipeline, and the return pipeline is communicated with the reservoir.

5. The aluminum profile spraying wastewater purification treatment system according to any one of claims 1 to 4, characterized in that: the regulating reaction tank comprises a first regulating reaction tank and a second regulating reaction tank which are communicated with each other, the first regulating reaction tank is communicated with the reservoir, and the second regulating reaction tank is communicated with the sedimentation tank.

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