CN107311365A - A kind of steel galvanization quickening liquid ionization removes iron purification environmental-protection processing system and method - Google Patents

A kind of steel galvanization quickening liquid ionization removes iron purification environmental-protection processing system and method Download PDF

Info

Publication number
CN107311365A
CN107311365A CN201710799379.0A CN201710799379A CN107311365A CN 107311365 A CN107311365 A CN 107311365A CN 201710799379 A CN201710799379 A CN 201710799379A CN 107311365 A CN107311365 A CN 107311365A
Authority
CN
China
Prior art keywords
ionization
quickening liquid
iron
reactor
liquid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710799379.0A
Other languages
Chinese (zh)
Inventor
彭春来
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201710799379.0A priority Critical patent/CN107311365A/en
Publication of CN107311365A publication Critical patent/CN107311365A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/02—Oxides; Hydroxides
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
    • C23C2/06—Zinc or cadmium or alloys based thereon
    • 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
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • 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
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
    • C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
    • 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
    • C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • 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
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
    • C02F1/763—Devices for the addition of such compounds in gaseous form
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/20—Heavy metals or heavy metal compounds
    • C02F2101/203—Iron or iron compound
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/16—Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/46—Apparatus for electrochemical processes
    • C02F2201/461—Electrolysis apparatus
    • C02F2201/46105—Details relating to the electrolytic devices
    • C02F2201/4616—Power supply
    • C02F2201/4617—DC only
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/02—Temperature
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00—General aspects of water treatment
    • C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Removal Of Specific Substances (AREA)

Abstract

Iron purification environmental-protection processing system and method are removed the invention discloses a kind of ionization of steel galvanization quickening liquid, it is related to environmental technology field, including heat exchanger, ionize decomposer, reactor and filter, the water inlet of the heat exchanger passes through water pump connecting fluid thermal source, heat exchanger is connected with ionization decomposer, ionization decomposer is connected with first-stage reactor, first-stage reactor is connected by jet pump with second reactor, the leakage fluid dram of reactor is connected with filter, the heat source fluid is specially the hot water after the stack gases heating discharged using galvanizing equipment, the present invention is based on electrochemical method, aoxidized using material Different electrodes current potential at a dc voltage, ammoniacal liquor neutralization reaction precipitation filtration method is added to separate iron ion with pure quickening liquid, form pure quickening liquid and the iron hydroxide of solid-state, above-mentioned pure quickening liquid and iron hydroxide secondary can be utilized, environmental pollution is eliminated, reclaim heat energy emission reduction, realize that steel galvanization quickening liquid removes iron decontamination cycle regeneration.

Description

A kind of steel galvanization quickening liquid ionization removes iron purification environmental-protection processing system and method
Technical field
The present invention relates to environment protection energy-saving regeneration technical field, and in particular to a kind of steel galvanization quickening liquid ionization is except iron purification Environment-friendly disposal system and a kind of ionization of steel galvanization quickening liquid remove iron purification environmental-protection processing method.
Background technology
Steel galvanization anti-corrosion is produced and processed, and impregnates all treatment before plating before quickening liquid is workpiece completion galvanizing by dipping Most important treatment process in process；Many quickening liquids that saline solution is combined using " zinc chloride+ammonium chloride ", because of the processing side It is method efficiency high, simple, thoroughly；Ensure that workpiece surface forms complete zn-fe alloy layer in galvanizing by dipping, greatly extend steel Life of product and security performance；But workpiece can bring into when being impregnated in quickening liquid the residual iron salt of surface adhesion, hydrochloric acid and with Quickening liquid circular response generates molysite, and when iron ion content is more than 5g/L in quickening liquid, cadmia can be generated with the reaction of zinc liquid, Zinc consumption cost is significantly increased, while galvanized workpiece overlay coating is loose, it is impossible to ensure galvanizing quality.Produced a large amount of help plates useless Liquid forms serious environmental issue, is difficult harmless treatment, and conventional process expense is high.In the useless quickening liquid of oxidizer treatment Serious safety problem is formed in storage, transport process.
There is molysite processing method in existing quickening liquid（《Steel hot dip galvanizing process labor-techno practice application》Questions ＆ Answers 1000, author：Ma Shusen Xu Yan east Yuan Hua Pengwen flood is new etc., publishing house：Southwest Jiaotong University 2016.5）：
Groove removes iron processes：Ammoniacal liquor, hydrogen peroxide are added in quickening liquid（H2O2）, generation iron hydroxide (（Te(OH)3）Precipitation Except iron；Facts have proved can remove iron by so processing, but zinc ion also can be deposited in processing procedure simultaneously, it is necessary to Zinc ion is supplemented, increases zinc-plated production consumption；Ammoniacal liquor and hydrogen peroxide are also consumed by processing procedure, circulation iron hydroxide is produced dirty Mud.
Iron processes is removed online：Quickening liquid is continuously pumped into equipment for removing ferric ion, strong oxidizer, such as potassium permanganate is utilized （KMnO3）, potassium chlorate（KClO3）, sodium hypochlorite（NaClO）, hydrogen peroxide or air etc., precipitated oxidation of ferrous iron to ferric iron Separation；All need to consume chemical products, while circulating generation sludge.
Both above-mentioned recycling systems are chemically reacted using addition harmful influence, by the iron ion in quickening liquid Reflection generation ferric hydroxide precipitate gets off progress except iron, and purification cost is high, and extraction efficiency is low, has secondary pollution dangerous, does not also have Take and utilize zinc-plated zinc gray and zinc-plated production flue waste-heat thermal source.
The content of the invention
It is an object of the invention to provide one kind under using conventional, common low-grade remaining heat heat energy, using electrochemical principle, Different material difference in Electrode Potential is aoxidized, and is environmental protection, the process system of energy saving, with reduce the production of steel galvanization anti-corrosion and Processing quickening liquid（Ammonium chloride+zinc chloride is combined saline solution）Manufacturing cost and consumption, strengthen resource regeneration, eliminate Environmentally friendly hidden danger.
A kind of steel galvanization quickening liquid ionization removes iron purification environmental-protection processing system, including heat exchanger, ionization decomposer, one-level Reactor, second reactor, grade one filter and secondary filter, the water inlet of the heat exchanger are connected with fluid by water pump Thermal source, heat exchanger be connected with ionization decomposer, and ionization decomposer is connected with first-stage reactor, first-stage reactor by jet pump and Second reactor is connected, and the leakage fluid dram of first-stage reactor is connected with grade one filter, the leakage fluid dram of second reactor and two grades of mistakes Filter is connected, and the heat source fluid is specially the hot water after the stack gases heating discharged using galvanizing equipment, and the one-level is anti- Device and second reactor is answered to be additionally added ammoniacal liquor.
It is preferred that, the steel galvanization quickening liquid ionization is multiple except iron purification environmental-protection processing system pipeline is provided with equipment Pressure, temperature, liquid level sensor, and provided with centralized Control cabinet configuration microprocessor, input-output equipment, display etc. to processing System carries out automatic control and adjustment.
It is preferred that, the hot water storage is in boiler, and the boiler utilizes zinc-plated flue residue heat heater.
It is preferred that, the ionization decomposer is to provide certain safe voltage dc source, divalent iron ion oxygen in quickening liquid Trivalent iron ion is melted into, iron hydroxide solid precipitation is produced, while producing hydrogen and micro chlorine.
It is preferred that, the jet pump absorbs chlorine, while pollution quickening liquid is added, oxidation reaction generation iron chloride.
It is preferred that, what the I and II reactor was added is ammoniacal liquor, neutralization reaction generation ammonium chloride and iron hydroxide.
A kind of steel galvanization quickening liquid ionization removes iron purification environmental-protection processing method, comprises the following steps：
（1）Using some stack gases of galvanizing equipment in production system to the water heating in boiler, hot water passes through heat exchanger Heated to steel galvanization using the useless quickening liquid of rear iron content；
Useless quickening liquid main component：Hydrochloric acid（HCl）Frerrous chloride（FeCl2）Zinc chloride（ZnCl2）Ammonium chloride（NH4Cl）Water （H2O）
Ammoniacal liquor main component：NH4（OH）
（2）Quickening liquid after heating is passed into ionization decomposer, ionization decomposition is carried out under safe voltage dc source, helping Divalent ferrous ions oxidation produces iron hydroxide solid precipitation into trivalent iron ion in plating solution, while producing hydrogen and micro chlorine；
Oxidation reaction formula：6FeCl2+6H2O=4FeCl3+2Fe（OH）3↓+3H2↑
2FeCl2+6H2O=2Fe（OH）3↓+ 2Cl 2↑+3H2↑
（3）Ionize decomposer in it is oxidized after quickening liquid（Liquid-solid mixture）It is drained into first-stage reactor and adds ammoniacal liquor progress Neutralization reaction, precipitates the pure quickening liquid clear liquid of filtering discharge through grade one filter, is that the quickening liquid of zinc-plated production system is used, The iron hydroxide sale processing of precipitation discharge.
Neutralization reaction formula：FeCl3+NH 3+H 2O=NH4Cl+Fe（OH）3↓
（4）Hydrogen, the chlorine formed in ionization decomposer after oxidized reduction, is separated through first-stage reactor, is absorbed in jet pump Oxidation stain quickening liquid is discharged into second reactor, adds ammoniacal liquor neutralization reaction, pure by secondary filter precipitation filtering discharge Quickening liquid clear liquid, be that the quickening liquid of zinc-plated production system is used, precipitation discharge iron hydroxide sale processing；
Reaction equation：2FeCl2+Cl2=2FeCl3（Oxidation stain quickening liquid is absorbed in jet pump）
FeCl3+NH 3+H 2O=NH4Cl+Fe（OH）3↓（Second reactor adds ammoniacal liquor neutralization reaction）.
The advantage of the invention is that：The present invention is based on electrochemical method, optimizes existing quickening liquid decontamination cycle and uses Technological process, heat energy utilization, separation, absorption and purification quickening liquid facility compact, technique is exquisite, safety, using safe voltage Dc source ionization oxidation Decomposition precipitation, ammoniacal liquor neutralization precipitation separate iron ion and quickening liquid, generate quickening liquid clear liquid Zinc-plated production reuse, precipitation gained iron hydroxide is sold, and above-mentioned pure quickening liquid ionization oxidation, neutralization reaction precipitation are recycled Utilize, whole technique realizes environmental purification, energy-saving and emission-reduction and resource regeneration.
Brief description of the drawings
Fig. 1 is a kind of steel galvanization quickening liquid ionization of the present invention except the flow chart of iron purification environmental-protection processing system.
Fig. 2 is the structural representation of ionization decomposer in the present invention.
Wherein, 1- heat exchangers, 2- ionization decomposers, 3- first-stage reactors, 4- jet pumps, 5- second reactors, bis- grades of 6- Filter pump, 7- secondary filters, 8- by-pass filtration pumps, 9- grade one filters, 10- water pumps, 11- heaters, 12- electrodes, 13- oxygen Change reactor, 14- displays.
Embodiment
To be easy to understand the technical means, the inventive features, the objects and the advantages of the present invention, with reference to Embodiment, is expanded on further the present invention.
As shown in Figure 1 to Figure 2, a kind of steel galvanization quickening liquid ionization removes iron purification environmental-protection processing system, including heat exchanger 1st, ionization decomposer 2, first-stage reactor 3, jet pump 4 and second reactor 5, the water inlet of the heat exchanger 1 pass through water pump 10 It is connected with heat source fluid, heat exchanger 1 is connected with ionization decomposer 2, the gas of ionization decomposer 2 separated by first-stage reactor 3, It is connected through jet pump 4 with second reactor 5, the liquid-solid mixture of ionization decomposer 2 is connected with first-stage reactor 3, the fluid Thermal source is specially the hot water after the stack gases heating discharged using galvanizing equipment, and the oxidation reaction provides safe voltage What dc source, neutralization reaction material were added is ammoniacal liquor.
In the present embodiment, the first class purification ionizes decomposer 2 by oxidation Decomposition liquid-solid mixture quickening liquid, neutralized instead First-stage reactor 3, by-pass filtration pump 8, grade one filter 9 is answered to constitute.
In the present embodiment, the secondary purification ionizes decomposer 2, absorption oxidation by oxidation Decomposition hydrogen, chlorine and formed Iron chloride jet pump 4, neutralization reaction second reactor 5, secondary filtration pump 6, secondary filter 7 are constituted.
In the present embodiment, the hot water storage is in water heater 11.
In the present embodiment, the ionization decomposer is made up of electrode 12, oxidation reactor 13, display 14.
In addition, the steel galvanization quickening liquid ionization removes and multiple electrodes 12, temperature is provided with iron purification environmental-protection processing system Spend sensor 15, liquid level sensor 16, magnetic valve 17, conductivity sensor 18, pressure sensor 19 etc., by microprocessor with Display 14 is connected, and is controlled except iron purification environmental-protection processing system, monitors, is run, really for the ionization of steel galvanization quickening liquid Protect the ionization of steel galvanization quickening liquid and remove the increasingly automated operation of iron purification environmental-protection processing system.
Iron purification environmental-protection processing method, including following step are removed the invention also discloses a kind of ionization of steel galvanization quickening liquid Suddenly：
（1）Using the water heating in some stack gases feed-water heaters 11 of galvanizing equipment in production system, it can specifically pass through Corresponding heat exchanger is heated, the heating agent after heating, and hot water produces and processed institute by heat exchanger 1 to steel galvanization anti-corrosion Iron heating is removed with quickening liquid；
（2）Quickening liquid after heating, which is passed into ionization decomposer 2, carries out ionization oxidation Decomposition, and liquid is mixed admittedly in ionization decomposer 2 The quickening liquid of compound, which is drained into first order reaction 3, carries out neutralization reaction, is exported through by-pass filtration pump 8, the filtering system of grade one filter 9 Obtain pure quickening liquid（Zinc chloride, ammonium chloride solution）In case zinc-plated production and application；Gaseous hydrogen, chlorine enter first order reaction Device 3 is separated, and oxidation quickening liquid is absorbed in jet pump 4, is entered addition ammoniacal liquor progress neutralization reaction in second reactor 5 and is sunk Form sediment, exported through secondary filtration pump 6, pure quickening liquid is made in the filtering of secondary filter 7（Zinc chloride, ammonium chloride solution）In case plating Zinc production and application,；
（3）The step（2）The iron hydroxide produced after ionization oxidation, one or two grades of neutralization reactions is filtered out through precipitation, as Resource is reused.
It is of the invention to be based on electrochemical method based on above-mentioned, optimize existing quickening liquid recovery process method, heat energy profit Utilized, separation, absorbed with the processing of, dangerous waste, present invention purification quickening liquid facility compact, technique is exquisite, using engineering plastics, Wu Te Equipment and pollutant are planted, liquid-solid mixture part obtained by oxidation Decomposition is ionized through in ammoniacal liquor and heavy using safe voltage dc source Shallow lake separates iron ion with quickening liquid, generates the zinc-plated production cycle reuse of quickening liquid clear liquid, and filtering gained iron hydroxide goes out Sell, ionization oxidation decomposition gas part further aoxidized through jet pump, second reactor 5 add ammoniacal liquor neutralization precipitation, iron from Son is separated with quickening liquid, generates the zinc-plated production cycle reuse of quickening liquid clear liquid, and filtering gained iron hydroxide sells above-mentioned pure Net quickening liquid ionization oxidation, neutralization reaction precipitate equal reusable edible, whole technique realize environmental purification, energy-saving and emission-reduction and Resource regeneration.
As known by the technical knowledge, the present invention can be by the embodiment party of other essence or essential feature without departing from its spirit Case is realized.Therefore, embodiment disclosed above, for each side, is all merely illustrative, and is not only.Institute Have within the scope of the present invention or be included in the invention in the change being equal in the scope of the present invention.

Claims (7)

1. a kind of steel galvanization quickening liquid ionization removes iron purification environmental-protection processing system, it is characterised in that including heat exchanger, ionization point Device, first-stage reactor, second reactor, grade one filter and secondary filter are solved, the water inlet of the heat exchanger passes through water pump Heat source fluid is connected with, heat exchanger is connected with ionization decomposer, and the discharge gas of ionization decomposer passes through first-stage reactor, vacuum Suction pump is connected with second reactor, and the discharge opeing of ionization decomposer is connected with first-stage reactor, and the heat source fluid is specially profit Hot water after the stack gases heating discharged with galvanizing equipment, the first-stage reactor and second reactor are additionally added ammoniacal liquor.
2. a kind of steel galvanization quickening liquid ionization iron removal by oxidation purification environmental-protection processing system according to claim 1, it is special Levy and be：The sensors such as magnetic valve, pressure, liquid level, temperature are installed on the processing system pipeline and equipment, and entered by computer Row programming, automatic control system operation.
3. a kind of steel galvanization quickening liquid ionization iron removal by oxidation purification environmental-protection processing system according to claim 1 or 2, its It is characterised by：The hot water is to provide thermal source by the heating of steel galvanization flue gas.
4. a kind of steel galvanization quickening liquid ionization iron removal by oxidation purification environmental-protection processing system according to Claims 2 or 3, its It is characterised by：The ionization decomposer is to provide certain safe voltage dc source, is helped according to different material difference in Electrode Potential handle Divalent ferrous ions oxidation produces iron hydroxide solid precipitation into trivalent iron ion in plating solution, while producing hydrogen and micro chlorine；
Reaction equation：6FeCl2+6H2O=4FeCl3+2Fe（OH）3↓+3H2↑
2FeCl2+6H2O=2Fe（OH）3↓+ 2Cl 2↑+3H2↑。
5. a kind of steel galvanization quickening liquid ionization iron removal by oxidation purification environmental-protection processing system according to claim 4, it is special Levy and be：What the first-stage reactor was added is ammoniacal liquor, carries out neutralization reaction precipitation；
Neutralization-precipitation reaction formula：FeCl3+NH 3+H 2O=NH4Cl+Fe（OH）3↓。
6. a kind of steel galvanization quickening liquid ionization iron removal by oxidation purification environmental-protection processing system according to claim 5, it is special Levy and be：What the second reactor was added is that ammoniacal liquor carries out jet pump before neutralization reaction precipitation, the second reactor and also added Enter to pollute quickening liquid and carry out oxidation reaction；
Reaction equation：2FeCl2+Cl2=2FeCl3
FeCl3+NH3+H2O=NH4Cl+Fe（OH）3↓。
7. a kind of steel galvanization quickening liquid ionization iron removal by oxidation purification environmental-protection processing method according to claim 6, it is special Levy and be, comprise the following steps：
（1）Using some stack gases of galvanizing equipment in production system to the water heating in boiler, the heating agent after heating, i.e., The useless quickening liquid heating of hot water iron content after heat exchanger is to steel galvanization use；
（2）Quickening liquid after heating is passed into ionization decomposer, and iron ion aoxidize instead under safe voltage dc source Liquid-solid mixture should be formed, while producing gaseous hydrogen and micro chlorine；
（3）Liquid-solid mixture is discharged into first-stage reactor in ionization decomposer, is added ammoniacal liquor and is further carried out neutralization reaction, through one The pure quickening liquid clear liquid of level filter precipitation filtering discharge, is that the quickening liquid of zinc-plated production system is used, filters the hydrogen of discharge Iron oxide is sold；
（4）Gaseous hydrogen and micro chlorine are separated through first-stage reactor in ionization decomposer, by being absorbed simultaneously in jet pump Add pollution quickening liquid and carry out oxidation reaction, be drained into second reactor and add ammoniacal liquor progress neutralization reaction, through secondary filtration The pure quickening liquid clear liquid of device precipitation filtering discharge, is that the quickening liquid of zinc-plated production system is used, filters the iron hydroxide of discharge Sell.
CN201710799379.0A 2017-09-07 2017-09-07 A kind of steel galvanization quickening liquid ionization removes iron purification environmental-protection processing system and method Pending CN107311365A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710799379.0A CN107311365A (en) 2017-09-07 2017-09-07 A kind of steel galvanization quickening liquid ionization removes iron purification environmental-protection processing system and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710799379.0A CN107311365A (en) 2017-09-07 2017-09-07 A kind of steel galvanization quickening liquid ionization removes iron purification environmental-protection processing system and method

Publications (1)

Publication Number Publication Date
CN107311365A true CN107311365A (en) 2017-11-03

Family

ID=60177181

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710799379.0A Pending CN107311365A (en) 2017-09-07 2017-09-07 A kind of steel galvanization quickening liquid ionization removes iron purification environmental-protection processing system and method

Country Status (1)

Country Link
CN (1) CN107311365A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108796410A (en) * 2018-08-01 2018-11-13 唐山正元管业有限公司 A kind of zinc-plated online deferrization process using potassium chlorate and ammonium hydroxide

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1614095A (en) * 2004-09-16 2005-05-11 黑龙江科技学院 Preparation of superfine metal oxide by electrolytic method
CN103755080A (en) * 2014-01-03 2014-04-30 常熟风范电力设备股份有限公司 Waste acid and wastewater reuse production process for hot galvanizing
CN106830488A (en) * 2017-03-23 2017-06-13 彭春来 A kind of steel galvanization spent acid auto purification environment-friendly disposal system and method
CN107058929A (en) * 2017-04-26 2017-08-18 彭春来 A kind of steel galvanization quickening liquid auto purification environment-friendly disposal system and method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1614095A (en) * 2004-09-16 2005-05-11 黑龙江科技学院 Preparation of superfine metal oxide by electrolytic method
CN103755080A (en) * 2014-01-03 2014-04-30 常熟风范电力设备股份有限公司 Waste acid and wastewater reuse production process for hot galvanizing
CN106830488A (en) * 2017-03-23 2017-06-13 彭春来 A kind of steel galvanization spent acid auto purification environment-friendly disposal system and method
CN107058929A (en) * 2017-04-26 2017-08-18 彭春来 A kind of steel galvanization quickening liquid auto purification environment-friendly disposal system and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108796410A (en) * 2018-08-01 2018-11-13 唐山正元管业有限公司 A kind of zinc-plated online deferrization process using potassium chlorate and ammonium hydroxide

Similar Documents

Publication Publication Date Title
CN105177583B (en) A kind of zero-emission acidic etching waste liquid circulation regeneration method and system
CN103755082B (en) System and method for resource recovery of regenerated wastewater of ion exchange resin
CN101723486B (en) Method for treating salt-and-chlorine-contained wastewater
CN105800822A (en) Method and equipment for standards-reaching treatment of chemical nickel plating waste liquid
Reis et al. Electroplating wastes
CN104649335B (en) Ferrous chloride crystal and the method and device of hydrochloric acid is reclaimed from hydrochloric acid pickling waste liquor
CN102092872A (en) Method for recycling stainless steel neutral salt electrolysis waste solution
CN104876384A (en) Zero-emission treatment system and method for industrial circulating water
Yan et al. An efficient Two-Chamber Electrodeposition-Electrodialysis combination craft for nickel recovery and phosphorus removal from spent electroless nickel plating bath
CN105441950A (en) Regeneration and recycling technology for acid copper chloride etching waste liquid
CN107311365A (en) A kind of steel galvanization quickening liquid ionization removes iron purification environmental-protection processing system and method
CN107354461A (en) A kind of printed circuit board acidic etching waste liquor process for regenerating, recovering and reutilizing
CN107058929A (en) A kind of steel galvanization quickening liquid auto purification environment-friendly disposal system and method
CN212639975U (en) System for utilizing waste hydrochloric acid and pickling sludge
CN106277486A (en) The process recovery method of a kind of steel industry hydrochloric acid pickling waste liquor and system thereof
CN113582468A (en) Stainless steel pickling waste acid liquid treatment system and treatment method
CN205011847U (en) Chlorate decomposing device
CN107059011A (en) The ferric trichloride etching solution regeneration device and method of cupric, nickel and chromium
CN114318372B (en) Device and method for absorbing chlorine by circularly electrolyzing ferric trichloride
CN106495356A (en) The processing method and system of steel industry nitric hydrofluoric acid mixed acid pickle liquor
Agrawal et al. A review on regeneration process of waste pickling acid at steel industries
Yatskov et al. Development of a resource-saving technology for the treatment of ferrum-containing wastewater from etching operations
CN105439345B (en) A kind of lead bearing steel cord pickle liquor is except lead resource Application way
RU2491232C1 (en) Method of recycling spent solutions containing hexavalent chromium compounds
CN106830488A (en) A kind of steel galvanization spent acid auto purification environment-friendly disposal system and method

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20171103

WD01 Invention patent application deemed withdrawn after publication