CN207142981U - A kind of chemistry milling production line chromate waste water processing unit - Google Patents

Abstract

The utility model provides a kind of chemistry milling production line chromate waste water processing unit, including regulating reservoir, efficiently reaction tank, clarification clarifier, active carbon filter, the clear water reserviors being sequentially communicated；Groove, clear water reserviors delivery port connect blow-off line to the water inlet of regulating reservoir with connecting the waste water of milling production line；Efficiently the bottom of clarification clarifier connects storage basin by discharge pipeline, and the storage basin is connected with filter press, regulating reservoir described in the pressing filtering liquid outlet of filter press, mud discharging mouth connection discharge pipeline；The inside of reaction tank is divided into three interconnected chambers by dividing plate, three chambers set gradually sulfuric acid dispensing port, sodium pyrosulfite dispensing port and sodium hydroxide dispensing port, pH Online Monitoring Control instrument is provided with first chamber and the 3rd chamber, ORP analyzers are installed in second chamber, the pH Online Monitoring Controls instrument and the ORP analyzers are connected with central control system PLC.The equipment high treating effect, it can be ensured that the clarity of water outlet.

Description

A kind of chemistry milling production line chromate waste water processing unit

Technical field

It the utility model is related to one kind and contain heavy metal sewage treatment equipment, contain more particularly to a kind of chemistry milling production line Chrome waste water processing unit.

Background technology

During production is electroplated, the waste water largely containing heavy metals such as chromium can be produced, if these waste water are not acted upon, Discharge can cause environmental pollution serious carelessly, it is difficult to manage, be also easy to cause hypertoxic raw material out of control, other consumption of raw materialss are big to ask Topic.If disorderly row can make underground water source receive pollution to the waste water containing heavy metal simultaneously, the health of the local masses is endangered, sternly Ecological environment is destroyed again.

Utility model content

In view of this, main purpose of the present utility model is to provide a kind of chemistry milling production line chromate waste water processing dress Put.

The technical solution adopted in the utility model is：

A kind of chemistry milling production line chromate waste water processing unit, including be sequentially communicated regulating reservoir, reaction tank, efficiently it is clear Clear clarifier, active carbon filter, clear water reserviors；The waste water ground groove of the water inlet connection milling production line of the regulating reservoir, institute State clear water reserviors delivery port connection blow-off line；The bottom of the efficiently clarification clarifier connects storage basin, the storage by discharge pipeline Mud sump is connected with filter press, regulating reservoir described in the pressing filtering liquid outlet of the filter press, mud discharging mouth connection discharge pipeline；It is described anti- Ying Chi inside is divided into three interconnected chambers by dividing plate, and wherein first chamber is provided with sulfuric acid dispensing port, and second Chamber is provided with sodium pyrosulfite dispensing port, and the 3rd chamber is provided with sodium hydroxide dispensing port, in the first chamber and the 3rd PH Online Monitoring Control instrument is provided with chamber, ORP analyzers, the pH Online Monitoring Controls are installed in the second chamber Instrument and the ORP analyzers are connected with central control system PLC.

More specifically scheme includes：The delivery port of the regulating reservoir connects the reaction tank, the reaction by elevator pump The delivery port in pond connects the efficiently clarification clarifier by elevator pump.

Further, air agitator is installed in the regulating reservoir and the reaction tank.

The utility model provides a kind of chemistry milling production line chromate waste water processing unit, and it has advantages below：

1st, due to setting the regulating reservoir being sequentially communicated, reaction tank and the efficiently filter element such as clarification clarifier, therefore filter High treating effect, effectively high concentration chrome wastewater can be handled to adaptation discharge standard.

2nd, due to reaction tank sub-chamber, and each chamber set dispensing mouth and pH Online Monitoring Controls instrument and, ORP surveys Determine instrument, pH Online Monitoring Controls instrument and ORP analyzers to be connected with central control system PLC so as to control dispensing according to real time data Amount, and greatly improve production automation degree.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model.

Embodiment

The utility model is described in detail below in conjunction with accompanying drawing and specific embodiment, herein signal of the present utility model Property embodiment and explanation be used for explaining the utility model, but be not intended as to restriction of the present utility model.

Reference picture 1, the utility model discloses a kind of chemistry milling production line chromate waste water processing unit, including connect successively Logical regulating reservoir 2, efficiently reaction tank 3, clarification clarifier 4, active carbon filter 5, clear water reserviors 6；The water inlet of the regulating reservoir 2 With connecting the waste water of milling production line groove, clear water reserviors delivery port connection blow-off line；The delivery port of regulating reservoir 2 passes through elevator pump The reaction tank 3 is connected, the delivery port of the reaction tank 3 connects the efficiently clarification clarifier 4 by elevator pump.It is described efficient The bottom for clarifying clarifier 4 connects storage basin 11 by discharge pipeline 8, and the storage basin 11 is connected with filter press 9, the filter press 9 Pressing filtering liquid outlet described in regulating reservoir 2, mud discharging mouth connection discharge pipeline 8；The inside of the reaction tank 3 is divided into by dividing plate Three interconnected chambers, wherein first chamber are provided with sulfuric acid dispensing port, and second chamber is provided with sodium pyrosulfite dispensing Mouthful, the 3rd chamber is provided with sodium hydroxide dispensing port, pH Online Monitoring Controls is provided with the first chamber and the 3rd chamber Instrument, ORP analyzers, the pH Online Monitoring Controls instrument and the ORP analyzers and middle control are installed in the second chamber System PLC connections.In order that must offer medicine and react uniform, air stirring is also equipped with the regulating reservoir and the reaction tank Device.

Its operation principle, which is that high concentration chrome wastewater is entered by gravity flow from the ground groove of workshop by regulating reservoir water inlet, to be adjusted Save inside pond 2, being sufficiently stirred by air agitator in regulating reservoir 2, to reach the uniform purpose of water quality, then by lifting Pump is promoted in reaction tank 3, and reaction tank 3 is separated into the cavity of connection with dividing plate, is now added sulfuric acid in first chamber, by pH Adjust within 2-3.Monitored by pH Online Monitoring Controls instrument and feed back to PLC control system.Controlled and thrown by PLC system The number of dose.First chamber enters second chamber after being disposed, and is put into the sodium pyrosulfite dispensing port of second chamber burnt Sodium sulfite, the chemical feeding quantity of sodium pyrosulfite is controlled by ORP analyzers, and ORP analyzer initial values are set as 300 and fed back To central control system PLC.After second chamber is disposed, into the 3rd chamber, hydroxide is put into by sodium hydroxide dispensing port Sodium, pH Online Monitoring Control instrument monitoring and controllings, and central control system PLC is sent data to, the sewage reserved from the 3rd chamber enters After entering high clarification effect clarifier 4, the further purification of active carbon filter 5, flow into clear water reserviors 6 and discharge, flow out outlet pipe.It is efficiently clear Sludge present in clear clarifier is discharged to storage basin 11 by discharge pipeline, and storage basin 11 is connected with filter press 9, by filter press 9 Sludge after processing is discharged by discharge pipeline 8, and the pressing filtering liquid of the press filtration sludge of filter press 9 then flows back to tune by pressing filtering liquid return duct 10 Section is handled again in pond 2.

The technical scheme disclosed in the utility model embodiment is described in detail above, it is used herein specifically Embodiment is set forth to the principle and embodiment of the utility model embodiment, and the explanation of above example is only applicable to Help understands the principle of the utility model embodiment；Meanwhile for those of ordinary skill in the art, it is real according to the utility model Example is applied, the there will be changes in embodiment and application, in summary, this specification content should not be understood For to limitation of the present utility model.

Claims (3)

1. A kind of 1. chemistry milling production line chromate waste water processing unit, it is characterised in that including

   Regulating reservoir, efficiently reaction tank, clarification clarifier, active carbon filter, the clear water reserviors being sequentially communicated；The regulating reservoir enters Groove, the clear water reserviors delivery port connect blow-off line with connecting the waste water of milling production line at the mouth of a river；The efficiently clarification purification The bottom of device connects storage basin by discharge pipeline, and the storage basin is connected with filter press, the pressing filtering liquid outlet of the filter press The regulating reservoir, mud discharging mouth connection discharge pipeline；The inside of the reaction tank is divided into three interconnected chambers by dividing plate, Wherein first chamber is provided with sulfuric acid dispensing port, and second chamber is provided with sodium pyrosulfite dispensing port, and the 3rd chamber is provided with hydrogen Sodium oxide molybdena dispensing port, pH Online Monitoring Control instrument is provided with the first chamber and the 3rd chamber, in the second chamber ORP analyzers are installed, the pH Online Monitoring Controls instrument and the ORP analyzers are connected with central control system PLC.
2. 2. chemistry milling production line chromate waste water processing unit according to claim 1, it is characterised in that the regulating reservoir Delivery port the reaction tank is connected by elevator pump, the delivery port of the reaction tank connects the efficiently clarification by elevator pump Clarifier.
3. 3. chemistry milling production line chromate waste water processing unit according to claim 1, it is characterised in that in the regulation Air agitator is installed in pond and the reaction tank.