CN106186445A - A kind of steel wire rope acid-washing waste acid and containing high zinc, lead mud disposal system and technique altogether - Google Patents
A kind of steel wire rope acid-washing waste acid and containing high zinc, lead mud disposal system and technique altogether Download PDFInfo
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- CN106186445A CN106186445A CN201610762289.XA CN201610762289A CN106186445A CN 106186445 A CN106186445 A CN 106186445A CN 201610762289 A CN201610762289 A CN 201610762289A CN 106186445 A CN106186445 A CN 106186445A
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- 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
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G21/00—Compounds of lead
- C01G21/21—Sulfides
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- 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
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/41—Preparation of salts of carboxylic acids
- C07C51/412—Preparation of salts of carboxylic acids by conversion of the acids, their salts, esters or anhydrides with the same carboxylic acid part
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- 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
-
- 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
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- 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
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- 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
- C02F2303/00—Specific treatment goals
- C02F2303/06—Sludge reduction, e.g. by lysis
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The invention discloses a kind of steel wire rope acid-washing waste acid and containing high zinc, lead mud disposal system and technique altogether, belong to environmental conservation and technical field of waste water processing.Steel wire rope acid-washing waste acid and the disposal system altogether containing high zinc, lead mud of the present invention include mud acid stirring and dissolving device, lead zinc removal device, flocculant device for making, hydrogen sulfide absorption device and lead zinc precipitation separation device, wherein mud acid stirring and dissolving device is connected with lead zinc removal device by pipeline, and lead zinc removal device is connected with flocculant device for making, hydrogen sulfide absorption device and lead zinc precipitation separation device respectively by pipeline；Steel wire rope acid-washing waste acid and the disposing technique altogether containing high zinc, lead mud of the present invention comprise the following steps: mud acid stirring and dissolving, lead zinc are removed, preparation polyferric flocculant, hydrogen sulfide tail gas purify and lead zinc precipitate and separate.The present invention can realize the coexistence of steel wire rope acid-washing waste acid and high zinc, lead mud and put, it is possible to effectively remove zinc, lead element, and preparation has the industrial products of relatively high added value.
Description
Technical field
The invention belongs to solid hazardous waste resource field and field of waste water treatment in environmental conservation, specifically,
Relate to a kind of steel wire rope acid-washing waste acid and containing high zinc, lead mud disposal system and technique altogether, be by wire rope enterprise acid cleaning process
The high zinc, the lead mud that produce in the spent acid produced and production process have the money of the industrial products of added value as raw material, preparation
Sourceization disposing technique altogether.
Background technology
Steel wire rope be at least by two-layer steel wire or many personal shares around a center or the knot of a wire rope core spiral twisting
Structure, the ferrum oxide cortex that its surface generates in process of production needs to remove with acid washing method.Current domestic wire rope enterprise with
Chlorohydric acid pickling is main, when hydrochloric acid solution concentration is down to less than 10%, pickling effect be remarkably decreased do not reach need when use requires by
Waste treatment.Steel wire rope acid-washing waste acid acid strong (pH < 0), containing a large amount of poisonous and harmful heavy metallic elements (lead, zinc etc.), according to state
Family's environmental conservation emission request can not directly discharge, and easily causes serious secondary pollution, is listed in hazardous waste by country and carry out
Management.Steel wire rope pickling, phosphating production process also can produce a large amount of containing high zinc, the acid waste water of lead, current widely used addition
The method of alkaline precipitating agent, is formed containing high zinc, the mud of lead by neutralization, thus removes the objectionable impurities such as zinc, lead, make acid
Property waste water reaches discharge standard.In Gao Xin, lead mud, moisture content is generally more than 80%, solid according to Environmental Protection Department HJ/T299
Body refuse Leaching method determines that high zinc, lead mud belong to hazardous waste, it is impossible to directly topples over or fills.Therefore, now
High zinc, lead sludge are placed on on-site by major part wire rope enterprise, the most do not only take up substantial amounts of space, also can cause plant area
Heavy metal pollution of soil, when precipitation, zinc, lead in mud can migrate with rainwater, thus cause water pollution.
At present, Wire Rope Production producer is typically acid-washing waste acid and carries out individual processing respectively containing high zinc, lead mud.Its
In, the roadmap of steel wire rope acid-washing waste acid mainly has two kinds: the first be by steel wire rope acid-washing waste acid as waste water at
Reason, adds direct waste discharge after alkaline material precipitation lead, zinc in spent acid.This method can produce a large amount of containing zinc, lead heavy
Shallow lake thing, belongs to hazardous waste, also needs to dispose it further, with high costs.The second includes roasting method, distillation crystallization process, puts
Change method etc., its object is to the hydrochloric acid in waste acid recovery and ferrum element, but because there is operating cost height, poor product quality, energy
The shortcomings such as consumption is big and cannot be used in practical operation.High zinc, the process of lead mud that wire rope enterprise produces mainly have two
The method of kind: the first is cement solidification method, and the second is that high-temperature gasification removes lead method, and both approaches operating cost is the highest, needs
Take landfill place, and the metallic element in mud is not carried out disposal of resources, thus cause a large amount of metallic element
Waste.Additionally, by acid-washing waste acid with carry out individual processing respectively containing high zinc, lead mud and also can be greatly increased the work of manufacturer
Intensity, improves its processing cost.Therefore, how to realize in steel wire rope acid-washing waste acid and steel wire rope production produce containing height
Zinc, efficiently the processing of lead mud, realize resource, to reduce of processing cost always puzzlement Wire Rope Production producer great
A difficult problem.
Through retrieval, the most less about the research that steel wire rope acid-washing waste acid and high zinc, the coexistence of lead recycling sludge are put at present.
Wherein, CN104843957A disclose a kind of to steel wire rope process in produce waste hydrochloric acid and alkaline sludge carry out integrated treatment
Method, this application case is that the waste hydrochloric acid produced in the steel wire rope course of processing is joined the alkalescence produced in the steel wire rope course of processing
In mud, it is stirred making it fully react, removes the common method of disposal of insoluble matter the most again, but it does not really realize acid
Washing the recycling of spent acid and mud, the simplest mechanical agitation mixes, and the end product after process is containing high zinc, lead
Waste liquid, still falls within hazardous waste, in addition it is also necessary to just can discharge through further advanced treating.
And for example, CN105271436A discloses and a kind of utilizes steel wire rope mud and abraum salt to prepare poly ferric chloride flocculant agent
Method, this application case is to use sulfide precipitation to remove lead ion, and hydrogen sulfide gas absorbs through falling film absorption, packed tower and lives
Property charcoal absorption process, sludge residue add cement solidification, then utilize in mud reclaim ferrum to prepare flocculant.This application case
Do not consider the removal of zinc element, but Zn content high (> 40000mg/ in the production acid pickle of wire rope enterprise and mud at present
L), need zinc element removes the process that just with qualified discharge, simultaneously can also not account for sulfide precipitation product, need further
Process could realize recycling.Additionally, this application case adds aqueous slkali when producing flocculant, final gained flocculant
Quality is relatively poor, needs to be improved further.
Summary of the invention
1. invention to solve the technical problem that
It is an object of the invention to overcome current Wire Rope Production producer to deposit when processing acid-washing waste acid and contain high zinc, lead mud
Above deficiency, it is provided that a kind of steel wire rope acid-washing waste acid and containing high zinc, lead mud disposal system and technique altogether.Use this
Bright technical scheme both can realize the coexistence of steel wire rope acid-washing waste acid and high zinc, lead mud and put, it is possible to effectively thoroughly remove zinc,
Lead element, it is achieved the minimizing of hazardous waste, the shortcoming that simultaneously can overcome again traditional handicraft, preparation has relatively high added value
Industrial products, it is achieved that resource, bring bigger profit to enterprise.
2. technical scheme
For reaching above-mentioned purpose, the technical scheme that the present invention provides is:
A kind of steel wire rope acid-washing waste acid of the present invention and containing high zinc, lead mud disposal system altogether, including mud acid stirring and dissolving
Device, lead zinc removal device, flocculant device for making, hydrogen sulfide absorption device and lead zinc precipitation separation device, wherein, described
Mud acid stirring and dissolving device is connected with lead zinc removal device by pipeline, this lead zinc removal device pass through pipeline respectively with flocculant
Device for making, hydrogen sulfide absorption device and lead zinc precipitation separation device are connected.
Further, described hydrogen sulfide absorption device includes hydrogen sulfide absorption tower A, the hydrogen sulfide absorption being sequentially connected
Tower B and hydrogen sulfide absorption tower C, described hydrogen sulfide absorption tower A are connected with the air vent of lead zinc removal device by pipeline, and sulfur
The pipeline changed between hydrogen absorption tower B and hydrogen sulfide absorption tower C is provided with hydrogen sulfide leakage alarming device.
Further, described lead zinc precipitation separation device includes lead zinc precipitation separation device A and lead zinc precipitate and separate
Device B, lead zinc precipitation separation device A and lead zinc precipitation separation device B are all by the mud discharging of pipeline Yu lead zinc removal device
Mouthful it is connected, and sets respectively on the pipeline that is connected with lead zinc removal device of lead zinc precipitation separation device A and lead zinc precipitation separation device B
There are valve A, valve B.
A kind of steel wire rope acid-washing waste acid of the present invention and containing high zinc, lead mud disposing technique altogether, the steps include:
A, mud acid stirring and dissolving: be added to by pending mud in mud acid stirring and dissolving device, continue to throw the most wherein
After adding acid pickle, agitated abundant reaction standing, supernatant is evacuated in lead zinc removal device；
B, lead zinc are removed: the content of Pb&Zn in acid solution after detection dissolving mud, add sulfuration in lead zinc removal device
Thing, stirring reaction 30-60min, filter to remove and react the precipitate produced and supernatant is promoted to flocculant device for making, with
Time the hydrogen sulfide gas of generation is passed through hydrogen sulfide absorption device；
C, preparation polyferric flocculant: detection is passed through Fe in the solution of flocculant device for making2+And Fe3+Content, and according to
Its content configuration oxidant and the mixed liquor of alkali liquor, wherein, oxidant and Fe2+Mol ratio be 1:6, OH-With Fe3+Mol ratio
For 1-3:1, above-mentioned mixed liquor addition flocculant device for making being stirred reaction, reaction is i.e. made through one-tenthization process after terminating
Polyferric flocculant；
D, hydrogen sulfide tail gas purify: inhaled by the hydrogen sulfide gas being passed through in the hydrogen sulfide absorption device saturated alkali liquor of use
Receive, and the alkali liquor having fully absorbed hydrogen sulfide is back to use in step B；
E, lead zinc precipitate and separate: make lead that step B produces, zinc mixed precipitation material enter lead zinc precipitation separation device, make
Carry out Reaction Separation with the lead acetate solution that mass concentration is 30%-70%, obtain the vulcanized lead solid that purity is more than 99%
And meet the zinc acetate solid of technical purity.
Further, in described step A, the dosage of mud is the 1/5-1/2 body added to mud acid stirring and dissolving device
Long-pending place, acid pickle is 1-10:1 with the volume ratio of mud, and the stirring response time is 1-4 hour, and time of repose is 1-5h.
Further, supernatant is evacuated to by described step A after lead zinc removal device in mud acid stirring and dissolving device
Continue supplement mud, be subsequently adding acid solution carry out second time mud spent acid mixed dissolution, by that analogy, will after many secondary responses the end
Directly fill as solid waste after the insoluble substance washing of portion's precipitation.
Further, the ratio of lead in described step B, zinc total mole number and the molal quantity of sulfide, i.e. n (lead+zinc): n
(sulfide)=1:2-3, and described sulfide be sodium sulfide, Potassium monosulfide., calcium sulfide, NaHS one or more.
Further, the oxidant in described step C is one or both the mixing in sodium chlorate and potassium chlorate, alkali
Liquid is one or more the mixing in sodium hydroxide, potassium hydroxide and aqua calcis, and the stirring of stirring reaction
Rotating speed is 50-500r/min, and the stirring response time is 45-120min, after the time that one-tenthization processes is 20-30h, and one-tenthization processes
Evaporation 10%-50% moisture i.e. makes polyferric flocculant.
Further, in described step D, hydrogen sulfide gas is first passed through hydrogen sulfide absorption tower A and carries out absorption process, then
Be passed through in hydrogen sulfide absorption tower B and carry out double absorption, the hydrogen sulfide gas after double absorption through hydrogen sulfide leakage alarming device,
If alarm is not reported to the police, it is expelled directly out by hydrogen sulfide absorption tower C；If after alarm equipment alarm monitors hydrogen sulfide gas leakage,
Alkali liquor in hydrogen sulfide absorption tower B and hydrogen sulfide absorption tower C is replaced, and the alkali liquor absorbing hydrogen sulfide is back to use step
In rapid B；Alkali liquor in above-mentioned hydrogen sulfide absorption tower is the one in sodium hydroxide, potassium hydroxide and aqua calcis or one
Above mixing.
Further, described step E is first opened between lead zinc precipitation separation device A and lead zinc removal device on pipeline
Valve A, close the valve B on pipeline between lead zinc precipitation separation device B and lead zinc removal device, by lead, zinc mixed precipitation
Thing adds in lead zinc precipitation separation device A, reacts 30-45min and stand 30-60 minute under the rotating speed of 250-500r/min
After precipitate is transferred in lead zinc precipitation separation device B, under the rotating speed of 250-500r/min, react 30-45min standing
Take out precipitate after 30-60 minute and be the vulcanized lead solid that purity is more than 99%；Lead zinc precipitation point is detected after many secondary responses
When in device B, the concentration of lead acetate is less than 0.5%, taking-up evaporative crystallization obtains meeting the zinc acetate solid of technical purity；Hereafter
Open valve B, close valve A, using lead zinc precipitation separation device B as the device of first set reaction, fill to lead zinc precipitate and separate
Put and A supplements the new lead acetate solution device as second time reaction, the most back and forth carry out.
3. beneficial effect
Use the technical scheme that the present invention provides, compared with prior art, there is following remarkable result:
(1) present invention a kind of steel wire rope acid-washing waste acid and containing high zinc, lead mud altogether disposal system, molten including mud acid stirring
Solve device, lead zinc removal device, flocculant device for making, hydrogen sulfide absorption device and lead zinc precipitation separation device, wherein, mud acid
Stirring and dissolving device is for carrying out mix and blend dissolving to pending mud and acid pickle, and lead zinc removal device is used for removing dissolving
Lead in acid solution, zinc after mud, inhaled the hydrogen sulfide gas produced in lead zinc removal device by hydrogen sulfide absorption device
Receipts process, and prevent direct exhaust emission environment, the sulfide simultaneously produced in hydrogen sulfide absorption device can be passed through lead zinc and remove
Device is circulated use, is conducive to economizing on resources.The supernatant produced in lead zinc removal device enters flocculant device for making
For producing flocculant, and the lead produced in lead zinc removal device, zinc can be mixed by the setting of lead zinc precipitation separation device
Close precipitate and carry out separating reaction, prepare the higher vulcanized lead of purity and zinc acetate industrial products, it is achieved that recycling.Adopt
Can effectively realize steel wire rope acid-washing waste acid by the system of the present invention and the resource coexistence containing high zinc, lead mud is put, reduce ring
Environment pollution, and technological operation is simple, it is possible to carry out Automated condtrol.
(2) present invention a kind of steel wire rope acid-washing waste acid and containing high zinc, lead mud altogether disposal system, described hydrogen sulfide is inhaled
Receiving apparatus includes hydrogen sulfide absorption tower A, hydrogen sulfide absorption tower B and the hydrogen sulfide absorption tower C being sequentially connected, by three grades of absorption towers
Arrange the fully absorbing of hydrogen sulfide can be effectively ensured, reduce environmental pollution further.Due to hydrogen sulfide absorption tower B and sulfuration
Pipeline between the C of hydrogen absorption tower is provided with hydrogen sulfide leakage alarming device, such that it is able to carry out hydrogen sulfide content in discharge gas
Monitoring, it is ensured that fully absorbing of hydrogen sulfide, prevents the leakage of hydrogen sulfide.
(3) present invention a kind of steel wire rope acid-washing waste acid and containing high zinc, lead mud altogether disposal system, its lead zinc precipitate and separate
Device includes lead zinc precipitation separation device A and lead zinc precipitation separation device B, is precipitated by lead zinc precipitation separation device A and lead zinc
The cooperation of segregation apparatus B is capable of efficiently separating of lead zinc precipitation, it is ensured that the purity of gained separation product.
(4) present invention a kind of steel wire rope acid-washing waste acid and containing high zinc, lead mud altogether disposing technique, stirred molten by mud acid
Solution, the removal of lead zinc, the preparation of polyferric flocculant, the purification of hydrogen sulfide tail gas and lead zinc precipitate and separate achieve steel wire rope pickling and give up
Acid and the resource coexistence containing high zinc, lead mud are put, and by the process of above each operation and technological parameter are carried out excellent
Change design, thus further ensure steel wire rope acid-washing waste acid and the effect disposed containing high zinc, lead recycling sludge, be greatly reduced
Pollution to environment.
(5) present invention a kind of steel wire rope acid-washing waste acid and containing high zinc, lead mud altogether disposing technique, be to use to supplement mud
Mode carry out mud acid mixing, and in mixed process, mud is to maintain excess, such that it is able to improve in mud acid mixed liquor total
The content of ferrum, and then ensure the quality of flocculant that postorder produces.Meanwhile, what the mud acid hybrid technique of the present invention produced is insoluble
Zinc contained by material, lead content are relatively fewer, and its composition is mainly silicon dioxide, can be used as solid waste and directly fill out after washing
Bury, further reduce the pollution to environment, it is ensured that acid-washing waste acid and containing the effective rate of utilization of resource in high zinc, lead mud.
(6) present invention a kind of steel wire rope acid-washing waste acid and containing high zinc, lead mud altogether disposing technique, in polyferric flocculant
In preparation process, by adding oxidant and the mixed liquor of alkali liquor in flocculant device for making, and to oxidant and alkali liquor
Addition control effectively, such that it is able to produce better quality, base degree more preferably flocculant, it is ensured that the use effect of flocculant
Really.
(7) present invention a kind of steel wire rope acid-washing waste acid and containing high zinc, lead mud altogether disposing technique, lead zinc precipitate and separate work
By selecting the lead acetate solution of certain concentration to carry out isolated and purified to lead zinc precipitation in sequence, and its separating technology is optimized
Design, such that it is able to the separating effect of lead zinc precipitation is effectively ensured, substantially increases the pure of vulcanized lead and zinc acetate industrial products
Degree.
Accompanying drawing explanation
Fig. 1 is a kind of steel wire rope acid-washing waste acid of the present invention and contains high zinc, the structural representation of the common disposal system of lead mud；
Fig. 2 is a kind of steel wire rope acid-washing waste acid of the present invention and contains high zinc, the flow chart of the common disposing technique of lead mud.
In figure: 1, mud acid stirring and dissolving device；2, lead zinc removal device；3, flocculant device for making；4, hydrogen sulfide absorption
Tower A；5, hydrogen sulfide absorption tower B；6, hydrogen sulfide absorption tower C；7, hydrogen sulfide leakage alarming device；8, lead zinc precipitation separation device A；9、
Lead zinc precipitation separation device B；10, valve A；11, valve B.
Detailed description of the invention
As it is shown in figure 1, a kind of steel wire rope acid-washing waste acid of the present invention and containing high zinc, lead mud altogether disposal system, including mud
Acid stirring and dissolving device 1, lead zinc removal device 2, flocculant device for making 3, hydrogen sulfide absorption device and lead zinc precipitate and separate dress
Putting, wherein, mud acid stirring and dissolving device 1 is connected with lead zinc removal device 2 by pipeline, and this lead zinc removal device 2 passes through pipeline
It is connected with flocculant device for making 3, hydrogen sulfide absorption device and lead zinc precipitation separation device respectively.Above-mentioned mud acid stirring and dissolving fills
It is equipped with agitator in putting 1, lead zinc removal device 2, flocculant device for making 3 and lead zinc precipitation separation device, and lead zinc is removed
Being equipped with elevator pump on the pipeline that device 2 is connected with mud acid stirring and dissolving device 1 and flocculant device for making 3, this elevator pump is adopted
Use acid corrosion-resistant elevator pump.
By mud acid stirring and dissolving device 1, pending mud and acid pickle are carried out mix and blend dissolving, upper by produce
Clear liquid is evacuated in lead zinc removal device 2, with the lead in acid solution after removal dissolving mud, zinc, make lead, zinc occur heavy by elevator pump
Form sediment, by hydrogen sulfide absorption device, the hydrogen sulfide gas produced in lead zinc removal device is carried out absorption process, prevent from directly arranging
Putting pollution environment, the sulfide simultaneously produced in hydrogen sulfide absorption device can be passed through lead zinc removal device and be circulated use,
Be conducive to economizing on resources.The supernatant produced in lead zinc removal device 2 enters flocculant device for making 3 and is used for producing flocculant,
And the lead, the zinc mixed sediment that produce in lead zinc removal device 2 can be carried out point by the setting of lead zinc precipitation separation device
From reaction, prepare the higher vulcanized lead of purity and zinc acetate industrial products, it is achieved that recycling.Use the system of the present invention
Can effectively realize steel wire rope acid-washing waste acid and the resource coexistence containing high zinc, lead mud is put, reduce environmental pollution, and technique behaviour
Make simple, it is possible to carry out Automated condtrol.
Above-mentioned hydrogen sulfide absorption device includes hydrogen sulfide absorption tower A4, hydrogen sulfide absorption tower B5 and the hydrogen sulfide being sequentially connected
Absorption tower C6, wherein hydrogen sulfide absorption tower A4 is connected with the air vent of lead zinc removal device 2 by pipeline, above-mentioned hydrogen sulfide absorption
The top of tower is equipped with spray equipment, and hydrogen sulfide gas is absorbed by the absorbing liquid sprayed by spray equipment.By three grades
Arranging of absorption tower can be effectively ensured fully absorbing of hydrogen sulfide, reduces environmental pollution further.Due to hydrogen sulfide absorption tower
Pipeline between B5 and hydrogen sulfide absorption tower C6 is provided with hydrogen sulfide leakage alarming device 7, such that it is able to contained in discharge gas
Hydrogen sulfide is monitored, it is ensured that fully absorbing of hydrogen sulfide, prevents the leakage of hydrogen sulfide.
Above-mentioned lead zinc precipitation separation device includes lead zinc precipitation separation device A8 and lead zinc precipitation separation device B9, and lead zinc sinks
Shallow lake segregation apparatus A8 is all connected by the mud discharging mouth of pipeline with lead zinc removal device 2 with lead zinc precipitation separation device B9, and
It is respectively equipped with valve on the pipeline that lead zinc precipitation separation device A8 and lead zinc precipitation separation device B9 is connected with lead zinc removal device 2
A10, valve B11, be capable of lead zinc precipitation by the cooperation of lead zinc precipitation separation device A and lead zinc precipitation separation device B
Efficiently separate, it is ensured that the purity of gained separation product.
A kind of steel wire rope acid-washing waste acid of the present invention and the flow process containing high zinc, lead mud disposing technique altogether as in figure 2 it is shown, its
Realized by mud acid stirring and dissolving, the removal of lead zinc, the preparation of polyferric flocculant, the purification of hydrogen sulfide tail gas and lead zinc precipitate and separate
Steel wire rope acid-washing waste acid and the resource coexistence containing high zinc, lead mud are put, and by the process of above each operation and
Technological parameter is optimized design, thus further ensures steel wire rope acid-washing waste acid and dispose containing high zinc, lead recycling sludge
Effect, substantially reduce the pollution to environment.Concretely comprising the following steps of this technique:
A, mud acid stirring and dissolving: be added to by pending mud in mud acid stirring and dissolving device 1, continue to throw the most wherein
Adding acid pickle, wherein the dosage of mud is to add to the 1/5-1/2 volume of mud acid stirring and dissolving device 1, and acid pickle is with dirty
The volume ratio of mud is 1-10:1, and supernatant is also evacuated in lead zinc removal device 2 after standing 1-5h by agitated reaction 1-4 hour.
By acid pickle and mud add ratio and reaction, time of repose control effectively, and thereby may be ensured that mud acid
Fully dissolve.
Continue after supernatant is evacuated to lead zinc removal device 2 to supplement mud in mud acid stirring and dissolving device 1, be subsequently adding
Acid solution carries out second time mud spent acid mixed dissolution, by that analogy, by the insoluble substance water of bottom precipitation after many secondary responses
Directly fill as solid waste after washing.The present invention carries out mud acid mixing by the way of using and supplementing mud, and mixes
In journey, mud is to maintain excess, such that it is able to improve the content of total ferrum in mud acid mixed liquor, and then ensures the wadding that postorder is produced
The quality of solidifying agent.Meanwhile, zinc contained by the insoluble substance that the mud acid hybrid technique of the present invention produces, lead content are relatively fewer, its
Composition is mainly silicon dioxide, can be used as solid waste and directly fill after washing, and further reduces the pollution to environment,
Ensure that acid-washing waste acid and containing the effective rate of utilization of resource in high zinc, lead mud.
B, lead zinc are removed: the content of Pb&Zn in acid solution after detection dissolving mud, add sulfuration in lead zinc removal device 2
Thing, controls the ratio of lead in lead zinc removal device 2, zinc total mole number and the molal quantity of sulfide, i.e. and n (lead+zinc): n (sulfide)
=1:2-3, filters after agitated reaction 30-60min and removes the precipitate of reaction generation and supernatant is promoted to flocculant system
Fetching puts 3, the hydrogen sulfide gas of generation is passed through hydrogen sulfide absorption device simultaneously.The sulfide of the present invention is sodium sulfide, sulfuration
Potassium, calcium sulfide, NaHS one or more.
C, preparation polyferric flocculant: detection is passed through Fe in the solution of flocculant device for making 32+And Fe3+Content, and root
According to its content configuration oxidant and the mixed liquor of alkali liquor, wherein, oxidant and Fe2+Mol ratio be 1:6, OH-With Fe3+Mole
Ratio is 1-3:1, and above-mentioned mixed liquor addition flocculant device for making 3 is stirred reaction, and speed of agitator is 50-500r/min,
The stirring response time is 45-120min, after reaction terminates, carries out into change and processes 20-30h, and then evaporation 10%-50% moisture is i.e.
It is made for polyferric flocculant.Above-mentioned oxidant is one or both the mixing in sodium chlorate and potassium chlorate, and alkali liquor is hydroxide
One or more mixing in sodium, potassium hydroxide and aqua calcis.
Inventor finds in experimentation, and simple use aqueous slkali produces flocculant, and can not to obtain quality preferable
Flocculant, and relatively low to the utilization rate of resource, the present invention prepares poly-by selecting the mixed liquor of oxidant and alkali liquor
Ferric flocculant, and the addition of oxidant and alkali liquor is optimized design, such that it is able to produce better quality, base degree more preferably
Flocculant, it is ensured that the using effect of flocculant.
D, hydrogen sulfide tail gas purify: inhaled by the hydrogen sulfide gas being passed through in the hydrogen sulfide absorption device saturated alkali liquor of use
Receive, and the alkali liquor having fully absorbed hydrogen sulfide is back to use in step B.Concrete, first hydrogen sulfide gas is passed through hydrogen sulfide and inhales
Receive tower A4 and carry out absorption process, then pass to hydrogen sulfide absorption tower B5 carries out double absorption, the hydrogen sulfide after double absorption
Gas is through hydrogen sulfide leakage alarming device 7, if alarm is not reported to the police, is expelled directly out by hydrogen sulfide absorption tower C6；If alarm
Alkali liquor in hydrogen sulfide absorption tower B5 and hydrogen sulfide absorption tower C6, to after hydrogen sulfide gas leakage, is replaced by alert detecting,
And the alkali liquor absorbing hydrogen sulfide is back to use in step B.Alkali liquor in hydrogen sulfide absorption tower of the present invention is sodium hydroxide, hydrogen-oxygen
Change one or more the mixing in potassium and aqua calcis.
E, lead zinc precipitate and separate: make lead that step B produces, zinc mixed precipitation material enter lead zinc precipitation separation device, make
Carry out Reaction Separation with the lead acetate solution that mass concentration is 30%-70%, obtain the vulcanized lead solid that purity is more than 99%
And meet the zinc acetate solid of technical purity.Concrete, first open between lead zinc precipitation separation device A8 and lead zinc removal device 2
Valve A10 on pipeline, closes the valve B11 on pipeline between lead zinc precipitation separation device B9 and lead zinc removal device 2, will
Lead, zinc mixed sediment add in lead zinc precipitation separation device A8, react 30-45min under the rotating speed of 250-500r/min
And after standing 30-60 minute, precipitate is transferred in lead zinc precipitation separation device B9, anti-under the rotating speed of 250-500r/min
Take out precipitate after answering 30-45min and standing 30-60 minute and be the vulcanized lead solid that purity is more than 99%；Many secondary responses
When in rear detection lead zinc precipitation separation device B9, the concentration of lead acetate is less than 0.5%, taking-up evaporative crystallization obtains meeting technical purity
Zinc acetate solid；Hereafter open valve B11, close valve A10, using lead zinc precipitation separation device B9 as first set reaction
Device, supplements the new lead acetate solution device as second time reaction in lead zinc precipitation separation device A8, the most back and forth enters
OK.
In prior art, process to wire rope factory acid pickle and mud would generally ignore the removal of heavy metal zinc, and steel wire
Zn content in rope factory's acid pickle and mud is all huge, directly discharges if the most effectively removed zinc, can cause tight the most equally
The environmental pollution of weight.Lead in wire rope factory acid pickle and mud, zinc can the most effectively be removed by the present invention, and to
After deposit carried out purification process.Wherein, by selecting the lead acetate solution of certain concentration that lead zinc precipitation is carried out point
From purification, and isolated and purified technique is carried out with coordinating of lead zinc precipitation separation device B9 by lead zinc precipitation separation device A8
Optimize design, such that it is able to the separating effect of lead zinc precipitation is effectively ensured, substantially increase vulcanized lead and zinc acetate industrial products
Purity.
For further appreciating that present disclosure, in conjunction with drawings and Examples, the present invention is described in detail.
Embodiment 1
With reference to Fig. 1, Fig. 2, wire rope factory mud mud (moisture content 30%-75%) after filter press is added to mud
In acid stirring and dissolving device 1, dosage is: add to 1/3 volume of mud acid stirring and dissolving device 1, more molten to mud acid stirring
Solve in device 1 and add acid pickle (H+Concentration is 13%, and lead content is 720mg/L, and Zn content is 4000mg/L), dosage is V
(acid pickle): V (mud)=3:1, i.e. volume is 9 cubic metres.Agitated reaction 2 hours also uses acid corrosion-resistant after standing 3h
Supernatant is extracted in lead zinc removal device 2 by elevator pump.After testing, the lead content dissolving the acid solution after mud is 799mg/L, and zinc contains
Amount is 6940mg/L, adds 230kg sodium sulfide solid, stirring reaction 30min, the lead zinc that will produce in lead zinc removal device 2
Precipitation mixture is passed through lead zinc precipitation separation device and carries out separation and purification treatment, and supernatant is promoted to after removing precipitate flocculation
Agent device for making 3, is passed through the hydrogen sulfide gas of generation hydrogen sulfide absorption device simultaneously and carries out absorption process, hydrogen sulfide absorption tower
Middle alkali liquor uses sodium hydroxide solution (at the bottom of sodium hydroxide solution is stored in absorbing tower in the present embodiment, by pipeline and lifting
Pump pumps into the spray equipment at top, absorption tower, spray equipment spray and lower absorb hydrogen sulfide gas, thus further
Improve the assimilation effect to hydrogen sulfide gas).After testing, it is passed through after the removal lead of flocculant device for making 3, zinc in solution
Fe2+And Fe3+Content be respectively as follows: Fe2+For 78.9g/L, Fe3+For 21.8g/L, according to Fe2+And Fe3+Content configuration oxidant
With the mixed liquor of alkali liquor, sodium chlorate is 225kg, and sodium hydroxide is 141g, pumps into flocculant device for making 3 after being dissolved in water, with
The rotating speed stirring reaction 45min of 350r/min, in the case of nature, one-tenthization i.e. obtained polyferric flocculant after 24 hours.
The flocculant producing the present embodiment detects, and result is as follows:
What table 1 embodiment 1 was produced flocculant index content
Result shows the flocculant produced, and meets HG_T 4672-2014 industry standard.Use the flocculant produced,
Dyeing waste water (turbidity be 100NTU, CODcr are 956mg/L) is processed, 1m3Adding 1kg flocculant in sewage, experiment is sent out
Now to the removal of turbidity up to about 90%, COD clearance is up to about 77%.
Embodiment 2
With reference to Fig. 1, Fig. 2, wire rope factory mud mud (moisture content 40%-75%) after filter press is added to mud
In acid stirring and dissolving device 1, dosage is: add to 1/2 volume of mud acid stirring and dissolving device 1, more molten to mud acid stirring
Solve in device 1 and add acid pickle (H+Concentration is 10%, and lead content is 4500mg/L, and Zn content is 5100mg/L), dosage is V
(acid pickle): V (mud)=8:1, i.e. volume is 24 cubic metres.Agitated reaction 4 hours also uses acid corrosion-resistant after standing 5h
Elevator pump supernatant is extracted in lead zinc removal device 2.After testing, the lead content dissolving the acid solution after mud is 6500mg/L,
Zn content is 7000mg/L, adds 1101kg Potassium monosulfide. solid in lead zinc removal device 2, and stirring reaction 60min, by produce
Lead zinc precipitation mixture is passed through lead zinc precipitation separation device and carries out separation and purification treatment, is promoted to by supernatant after removing precipitate
Flocculant device for making 3, is passed through the hydrogen sulfide gas of generation hydrogen sulfide absorption device simultaneously and carries out absorption process, and hydrogen sulfide is inhaled
Receive alkali liquor in tower and use potassium hydroxide.Detection is passed through the Fe removed after lead, zinc in solution of flocculant device for making 32+And Fe3+
Content, Fe2+For 225g/L, Fe3+For 31.6g/L, according to Fe2+And Fe3+Content configuration oxidant and the mixed liquor of alkali liquor,
Potassium chlorate is 1968kg, and potassium hydroxide is 2270kg, pumps into flocculant device for making 3 after being dissolved in water, turning with 500r/min
Speed stirring reaction 120min, in the case of nature, one-tenthization i.e. obtained polyferric flocculant after 30 hours.
Detecting the flocculant produced, result is as follows:
What table 2 embodiment 2 was produced flocculant index content
Result shows the flocculant produced, and meets HG_T 4672-2014 industry standard.Use the flocculant produced,
Dyeing waste water (turbidity be 300NTU, CODcr are 1200mg/L) is processed, 1m3Sewage adds 0.9kg flocculant, real
Issue after examination and approval the existing removal to turbidity up to about 84%.COD clearance is up to about 68%.
Embodiment 3
With reference to Fig. 1, Fig. 2, wire rope factory mud mud (moisture content 40%-75%) after filter press is added to mud
In acid stirring and dissolving device 1, dosage is: add to 1/5 volume of mud acid stirring and dissolving device 1, more molten to mud acid stirring
Solve in device 1 and add acid pickle (H+Concentration is 12%, and lead content is 3000mg/L, and Zn content is 4200mg/L), dosage is V
(acid pickle): V (mud)=10:1, i.e. volume is 30 cubic metres.Agitated reaction 1 hour also uses acid corrosion-resistant after standing 1h
Elevator pump supernatant is extracted in lead zinc removal device 2.It is 5300mg/L that the lead content of the acid solution after mud is dissolved in detection, and zinc contains
Amount is 5600mg/L, adds 483.5kg calcium sulfide solid, stirring reaction 30min, the lead that will produce in lead zinc removal device 2
Zinc precipitation mixture is passed through lead zinc precipitation separation device and carries out separation and purification treatment, and supernatant is promoted to after removing precipitate wadding
Solidifying agent device for making 3, is passed through hydrogen sulfide absorption device by the hydrogen sulfide gas of generation simultaneously and carries out absorption process, hydrogen sulfide absorption
In tower, alkali liquor uses aqua calcis.Detection is passed through the Fe removed after lead, zinc in solution of flocculant device for making 32+And Fe3 +Content, Fe2+For 146g/L, Fe3+For 23.2g/L, according to Fe2+And Fe3+Content configuration oxidant and the mixed liquor of alkali liquor,
Sodium chlorate is 1387kg, and calcium hydroxide is 919kg, pumps into flocculant device for making 3 after being dissolved in water, with the rotating speed of 100r/min
Stirring reaction 45min, in the case of nature, one-tenthization i.e. obtained polyferric flocculant after 20 hours.
Detecting the flocculant produced, result is as follows:
What table 3 embodiment 3 was produced flocculant index content
| Index | Numerical value |
| Fe3+ | 10.1% |
| Fe2+ | 0.3% |
| Basicity | 8% |
| Water-insoluble | 0.03% |
| Density | 1.20g/cm3 |
| Zn | 0.04% |
| Pb | 0.008% |
| Cd | Do not detect |
Result shows the flocculant produced, and meets HG_T 4672-2014 industry standard.Use the flocculant produced,
Dyeing waste water (turbidity be 400NTU, CODcr are 700mg/L) is processed, 1m3Sewage adds 1.2kg flocculant, experiment
Find that the removal to turbidity is up to about 88%.COD clearance is up to about 63%.
Embodiment 4
With reference to Fig. 1, Fig. 2, wire rope factory mud mud (moisture content 30%-75%) after filter press is added to mud
In acid stirring and dissolving device 1, dosage is: add to 1/4 volume of mud acid stirring and dissolving device 1, more molten to mud acid stirring
Solve in device 1 and add acid pickle (H+Concentration is 11%, and lead content is 800mg/L, and Zn content is 3000mg/L), dosage is V
(acid pickle): V (mud)=5:1, i.e. volume is 15 cubic metres.Agitated reaction 3 hours also uses acid corrosion-resistant after standing 2h
Elevator pump supernatant is extracted in lead zinc removal device 2.It is 1100mg/L that the lead content of the acid solution after mud is dissolved in detection, and zinc contains
Amount is 4400mg/L, adds 154kg NaHS solid, stirring reaction 50min, the lead that will produce in lead zinc removal device 2
Zinc precipitation mixture is passed through lead zinc precipitation separation device and carries out separation and purification treatment, and supernatant is promoted to after removing precipitate wadding
Solidifying agent device for making 3, is passed through hydrogen sulfide absorption device by the hydrogen sulfide gas of generation simultaneously and carries out absorption process, hydrogen sulfide absorption
In tower, alkali liquor uses sodium hydroxide, calcium hydroxide and the mixed liquor of potassium hydroxide.Detection is passed through the removal of flocculant device for making 3
Fe in solution after lead, zinc2+And Fe3+Content, Fe2+For 88g/L, Fe3+For 12g/L, according to Fe2+And Fe3+Content configuration
Oxidant and the mixed liquor of alkali liquor, sodium chlorate is 416 kg, and sodium hydroxide is 129 kg, pumps into flocculant and produce after being dissolved in water
Device 3, stirs reaction 70min with the rotating speed of 450r/min, and in the case of nature, one-tenthization i.e. obtained polyferric flocculant after 20 hours.
Detecting the flocculant produced, result is as follows:
The flocculant index content that table 4 embodiment 4 is produced
| Index | Numerical value |
| Fe3+ | 11% |
| Fe2+ | 0.9% |
| Basicity | 9% |
| Water-insoluble | 0.05% |
| Density | 1.13g/cm3 |
| Zn | 0.08% |
| Pb | 0.004% |
| Cd | Do not detect |
Result shows the flocculant produced, and meets HG_T 4672-2014 industry standard.Use the flocculant produced,
Dyeing waste water (turbidity be 500NTU, CODcr are 800mg/L) is processed, 1m3Sewage adds 0.8kg flocculant, experiment
Finding the removal of turbidity up to about 79%, COD clearance is up to about 76%.
Embodiment 5
With reference to Fig. 1, wire rope factory mud mud (moisture content 30%-75%) after filter press is added to mud acid and stirs
Mixing in dissolver 1, dosage is: add to 1/4 volume of mud acid stirring and dissolving device 1, then fills to mud acid stirring and dissolving
Put and in 1, add acid pickle (H+Concentration is 12%, and lead content is 900mg/L, and Zn content is 3200mg/L), dosage is V (spent acid
Liquid): V (mud)=1:1, i.e. volume is 3 cubic metres.Agitated reaction 3 hours also uses the lifting of acid corrosion-resistant after standing 4h
Supernatant is extracted in lead zinc removal device 2 by pump.It is 1200mg/L that the lead content of the acid solution after mud is dissolved in detection, and Zn content is
4600mg/L, adds 210kg sodium sulfide, Potassium monosulfide., calcium sulfide and NaHS solid in lead zinc removal device 2, and stirring is anti-
Answer 45min, the lead zinc precipitation mixture of generation is passed through lead zinc precipitation separation device and carries out separation and purification treatment, remove precipitate
After supernatant is promoted to flocculant device for making 3, the hydrogen sulfide gas of generation is passed through hydrogen sulfide absorption device simultaneously and carries out
Absorption processes, and in hydrogen sulfide absorption tower, alkali liquor uses sodium hydroxide, calcium hydroxide and the mixed liquor of potassium hydroxide.Detection is passed through wadding
Fe in solution after removal lead, the zinc of solidifying agent device for making 32+And Fe3+Content, Fe2+For 90g/L, Fe3+For 11g/L, according to
Fe2+And Fe3+Content configuration oxidant and the mixed liquor of alkali liquor, sodium chlorate is 426 kg, and sodium hydroxide is 130 kg, adds water
Pump into flocculant device for making 3 after dissolving, stir reaction 120min with the rotating speed of 50r/min, one-tenthization 30 hours in the case of nature
After i.e. obtain polyferric flocculant.
Detecting the flocculant produced, result is as follows:
The flocculant index content that table 5 embodiment 5 is produced
| Index | Numerical value |
| Fe3+ | 11.4% |
| Fe2+ | 0.76% |
| Basicity | 10% |
| Water-insoluble | 0.03% |
| Density | 1.12g/cm3 |
| Zn | 0.07% |
| Pb | 0.002% |
| Cd | Do not detect |
Result shows the flocculant produced, and meets HG_T 4672-2014 industry standard.Use the flocculant produced,
Dyeing waste water (turbidity be 500NTU, CODcr are 800mg/L) is processed, 1m3Sewage adds 0.8kg flocculant, experiment
Finding the removal of turbidity up to about 73%, COD clearance is up to about 71%.
Above-described embodiment is only for clearly demonstrating example of the present invention, and not restriction to embodiment.
For those of ordinary skill in the field, the change of other multi-form can also be made on the basis of the above description
Change or variation.Here without also cannot all of embodiment be given exhaustive.And the obvious change thus amplified out
Change or change among still in protection scope of the present invention.
Claims (10)
1. a steel wire rope acid-washing waste acid and containing high zinc, lead mud altogether disposal system, it is characterised in that: this system includes that mud acid stirs
Mix dissolver (1), lead zinc removal device (2), flocculant device for making (3), hydrogen sulfide absorption device and lead zinc precipitate and separate
Device, wherein, described mud acid stirring and dissolving device (1) is connected with lead zinc removal device (2) by pipeline, and this lead zinc removes dress
Put (2) to be connected with flocculant device for making (3), hydrogen sulfide absorption device and lead zinc precipitation separation device respectively by pipeline.
A kind of steel wire rope acid-washing waste acid the most according to claim 1 and containing high zinc, lead mud disposal system altogether, its feature exists
In: described hydrogen sulfide absorption device includes hydrogen sulfide absorption tower A (4), hydrogen sulfide absorption tower B (5) and the sulfuration being sequentially connected
Hydrogen absorption tower C (6), described hydrogen sulfide absorption tower A (4) is connected with the air vent of lead zinc removal device (2) by pipeline, and sulfur
The pipeline changed between hydrogen absorption tower B (5) and hydrogen sulfide absorption tower C (6) is provided with hydrogen sulfide leakage alarming device (7).
A kind of steel wire rope acid-washing waste acid the most according to claim 1 and containing high zinc, lead mud disposal system altogether, its feature exists
In: described lead zinc precipitation separation device includes lead zinc precipitation separation device A (8) and lead zinc precipitation separation device B (9), lead zinc
Precipitation separation device A (8) and lead zinc precipitation separation device B (9) are all by the mud discharging mouth of pipeline Yu lead zinc removal device (2)
It is connected, and the pipeline that lead zinc precipitation separation device A (8) and lead zinc precipitation separation device B (9) are connected with lead zinc removal device (2)
On be respectively equipped with valve A (10), valve B (11).
4. a steel wire rope acid-washing waste acid and containing high zinc, lead mud altogether disposing technique, it is characterised in that the steps include:
A, mud acid stirring and dissolving: pending mud is added in mud acid stirring and dissolving device (1), continues the most wherein to add
After acid pickle, agitated abundant reaction standing, supernatant is evacuated in lead zinc removal device (2)；
B, lead zinc are removed: the content of Pb&Zn in acid solution after detection dissolving mud, add sulfide in lead zinc removal device (2),
Stirring reaction 30-60min, filters to remove and reacts the precipitate produced and supernatant is promoted to flocculant device for making (3), with
Time the hydrogen sulfide gas of generation is passed through hydrogen sulfide absorption device；
C, preparation polyferric flocculant: detection is passed through Fe in the solution of flocculant device for making (3)2+And Fe3+Content, and according to it
Content configuration oxidant and the mixed liquor of alkali liquor, wherein, oxidant and Fe2+Mol ratio be 1:6, OH-With Fe3+Mol ratio be
1-3:1, adds above-mentioned mixed liquor flocculant device for making (3) and is stirred reaction, and reaction is i.e. made through one-tenthization process after terminating
Become polyferric flocculant；
D, hydrogen sulfide tail gas purify: absorbed by the hydrogen sulfide gas being passed through in the hydrogen sulfide absorption device saturated alkali liquor of use,
And the alkali liquor having fully absorbed hydrogen sulfide is back to use in step B；
E, lead zinc precipitate and separate: make lead that step B produces, zinc mixed precipitation material enter lead zinc precipitation separation device, use matter
Amount concentration is that the lead acetate solution of 30%-70% carries out Reaction Separation, obtains vulcanized lead solid and symbol that purity is more than 99%
Close the zinc acetate solid of technical purity.
A kind of steel wire rope acid-washing waste acid the most according to claim 4 and containing high zinc, lead mud disposing technique altogether, its feature exists
In: in described step A, the dosage of mud is to add to the 1/5-1/2 volume of mud acid stirring and dissolving device (1), acid pickle with
The volume ratio of mud is 1-10:1, and the stirring response time is 1-4 hour, and time of repose is 1-5h.
A kind of steel wire rope acid-washing waste acid the most according to claim 5 and containing high zinc, lead mud disposing technique altogether, its feature exists
In: supernatant is evacuated to by described step A in lead zinc removal device (2) backward mud acid stirring and dissolving device (1) continue to supplement dirt
Mud, is subsequently adding acid solution and carries out second time mud spent acid mixed dissolution, by that analogy, by bottom precipitation after many secondary responses not
Directly fill as solid waste after soluble substance washing.
7. according to a kind of steel wire rope acid-washing waste acid according to any one of claim 4-6 and containing high zinc, lead mud coexistence put work
Skill, it is characterised in that: the ratio of lead in described step B, zinc total mole number and the molal quantity of sulfide, i.e. n (lead+zinc): n (sulfuration
Thing)=1:2-3, and described sulfide be sodium sulfide, Potassium monosulfide., calcium sulfide, NaHS one or more.
8. according to a kind of steel wire rope acid-washing waste acid according to any one of claim 4-6 and containing high zinc, lead mud coexistence put work
Skill, it is characterised in that: the oxidant in described step C is one or both the mixing in sodium chlorate and potassium chlorate, and alkali liquor is
One or more mixing in sodium hydroxide, potassium hydroxide and aqua calcis, and the speed of agitator of stirring reaction
For 50-500r/min, the stirring response time is 45-120min, and the time that one-tenthization processes is 20-30h, and evaporates after one-tenthization process
10%-50% moisture i.e. makes polyferric flocculant.
9. according to a kind of steel wire rope acid-washing waste acid according to any one of claim 4-6 and containing high zinc, lead mud coexistence put work
Skill, it is characterised in that: in described step D, hydrogen sulfide gas is first passed through hydrogen sulfide absorption tower A (4) and carries out absorption process, then leads to
Entering in hydrogen sulfide absorption tower B (5) and carry out double absorption, the hydrogen sulfide gas after double absorption is through hydrogen sulfide leakage alarming device
(7), if alarm is not reported to the police, it is expelled directly out by hydrogen sulfide absorption tower C (6)；If alarm equipment alarm monitors hydrogen sulfide gas
After leakage, the alkali liquor in hydrogen sulfide absorption tower B (5) and hydrogen sulfide absorption tower C (6) is replaced, and hydrogen sulfide will be absorbed
Alkali liquor be back to use in step B；Alkali liquor in above-mentioned hydrogen sulfide absorption tower is sodium hydroxide, potassium hydroxide and aqua calcis
In one or more mixing.
10. according to a kind of steel wire rope acid-washing waste acid according to any one of claim 4-6 and containing high zinc, lead mud coexistence put work
Skill, it is characterised in that: described step E is first opened pipeline between lead zinc precipitation separation device A (8) and lead zinc removal device (2)
On valve A (10), close the valve B (11) on pipeline between lead zinc precipitation separation device B (9) and lead zinc removal device (2),
Lead, zinc mixed sediment are added in lead zinc precipitation separation device A (8), under the rotating speed of 250-500r/min, reacts 30-
Precipitate is also transferred in lead zinc precipitation separation device B (9) after standing 30-60 minute by 45min, turning at 250-500r/min
Take out precipitate after reacting 30-45min under speed and standing 30-60 minute and be the vulcanized lead solid that purity is more than 99%；Many
When after secondary response, in detection lead zinc precipitation separation device B (9), the concentration of lead acetate is less than 0.5%, taking-up evaporative crystallization is met
The zinc acetate solid of technical purity；Hereafter open valve B (11), close valve A (10), lead zinc precipitation separation device B (9) is made
For the device of first set reaction, in lead zinc precipitation separation device A (8), supplement new lead acetate solution as second time reaction
Device, is the most back and forth carried out.
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