CN208493677U - A kind of electroplating sludge pyrometallurgical smelting system - Google Patents
A kind of electroplating sludge pyrometallurgical smelting system Download PDFInfo
- Publication number
- CN208493677U CN208493677U CN201820901492.5U CN201820901492U CN208493677U CN 208493677 U CN208493677 U CN 208493677U CN 201820901492 U CN201820901492 U CN 201820901492U CN 208493677 U CN208493677 U CN 208493677U
- Authority
- CN
- China
- Prior art keywords
- outlet
- flue
- desulfurizing tower
- desulfurization wastewater
- pipeline
- 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.)
- Active
Links
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model relates to a kind of electroplating sludge pyrometallurgical smelting systems, including smelting furnace, desulfurizing tower and desulfurization wastewater pretreatment unit, gas melting furnace flue outlet is connected to desulfurizing tower entrance by flue, desulfurizing tower outlet is connected to desulfurization wastewater pretreatment unit inlet duct, desulfurization wastewater pretreatment unit outlet drainpipe, pipeline atomization and vaporization device is provided on flue, gas melting furnace flue outlet is connected to pipeline atomization and vaporization device smoke inlet pipelines, drainpipe outlet is connected to pipeline atomization and vaporization device waste water mouth, pipeline atomization and vaporization device gas outlet is connected to the desulfurizing tower inlet duct, flue-gas temperature is reduced to 200 DEG C by 550 DEG C in 2s using pipeline atomization and vaporization device, effectively reduce the synthesis of dioxin, the formation of dioxin is reduced from source, desulfurization wastewater realizes zero-emission simultaneously, no It only saves equipment and launches the operating cost that cost reduces desulfurization wastewater processing and dioxin trapping simultaneously.
Description
Technical field
The utility model relates to a kind of electroplating sludge pyrometallurgical smelting systems, more particularly to a kind of electroplating sludge pyrometallurgical smelting
The system of flue gas reduction dioxin and desulfurization wastewater zero-emission.
Background technique
Containing a large amount of heavy metal such as copper, nickel, zinc, mercury etc. in electroplating sludge, and the Cl content in electroplating sludge is higher.Mesh
About 1300 DEG C of temperature in the furnace of preceding electroplating sludge pyrometallurgical smelting, about 400 DEG C ~ 450 DEG C of fire door exhaust gas temperature；And at 400 ~ 450 DEG C
It is exactly in the synthesis temperature window of dioxin.Since the influence of process above causes dioxins concentration in flue gas higher, flue gas
In content of beary metal be also at higher level.
Flue gas treating process process used in electroplating sludge pyrometallurgical smelting in the process flow as shown in Figure 1, pass through at present
Active carbon injection carries out the control of dioxin, handles after activated carbon adsorption dioxin as dangerous waste, that is to say, that active carbon injection
The method operating cost for adsorbing dioxin is higher.Zero-emission, but the investment and fortune of MVR are realized to desulfurization wastewater by MVR technique
Row is costly, and the desulfurization wastewater investment of 3m3/h about needs 300-500 ten thousand, about 70 yuan of -130 yuan/m3 waste water of operating cost.Therefore
How to reduce the operating cost of dioxin and the investment of desulfurization wastewater zero-emission and operating cost is electroplating sludge pyrometallurgical smelting
One important issue.
Utility model content
Technical problem to be solved by the utility model is: overcoming the deficiencies of the prior art and provide a kind of reduces dioxin
Form the electroplating sludge pyrometallurgical smelting system with control desulfurization wastewater zero-emission.
The technical scheme adopted by the utility model to solve the technical problem is as follows: providing a kind of electroplating sludge pyrometallurgical smelting system
System, including smelting furnace, desulfurizing tower and desulfurization wastewater pretreatment unit, the gas melting furnace flue outlet enter with the desulfurizing tower
Mouth is connected to by flue, and the desulfurizing tower outlet is connected to the desulfurization wastewater pretreatment unit inlet duct, described de-
Sulphur sewage pretreatment device outlet drainpipe, is provided with pipeline atomization and vaporization device, the pipeline on the flue
Atomization and vaporization device includes smoke inlet, waterwater entrance and gas outlet, and the gas melting furnace flue outlet and the pipeline are atomized
The connection of evaporator smoke inlet pipelines, the drainpipe outlet are connected to the pipeline atomization and vaporization device waste water mouth, the pipeline
Atomization and vaporization device gas outlet is connected to the desulfurizing tower inlet duct.
Through the above technical solutions, while being atomized pretreated desulfurization wastewater using pipeline atomization and vaporization device and high
Warm flue gas is sufficiently mixed turbulent contact, so that flue-gas temperature is reduced to 200 DEG C by 550 DEG C in 2s, avoids dioxin synthesis
Temperature window, so that the formation of dioxin be effectively reduced.
The utility model is further improved, and can be also arranged on the flue at the pipeline atomization and vaporization device gas outlet
There are cyclone dust collectors.
Through the above technical solutions, in cyclone dust collectors flue gas and be sufficiently mixed with still unevaporated droplet, turbulent flow, give up
The salts substances generated while water evaporation are collected by cyclone dust collectors, have achieved the purpose that desulfurization wastewater zero-emission.
The utility model is further improved, and can also be provided with powder on the flue at the cyclone entrance
Active carbon injection apparatus.
Through the above technical solutions, carrying out the control of dioxin by the active carbon that Powdered Activated Carbon injection apparatus ejects
Processing, remaining dioxin absorption make flue gas qualified discharge on the activated carbon.
The utility model is further improved, and can also be provided with bag-type dust on the flue of the desulfurizing tower inlet
Device.
Through the above technical solutions, being further filtered processing to the flue gas in flue using bag filter.
The utility model be further improved, desulfurization wastewater pretreatment unit can be also set as flocculation tanks, settling tank and
Case is neutralized, the desulfurizing tower outlet is connected to the flocculation tanks inlet duct, the flocculation tanks outlet and the precipitating tank inlet
Pipeline connection, the settling tank outlet are connected to the neutralization tank inlet pipeline, and the neutralization case outlet passes through the drainpipe
It is connected to the injector waste water mouth.
Through the above technical solutions, being flocculated, being precipitated and being neutralized using desulfurization wastewater pretreatment unit, waste water is reduced
In suspended matter so that in waste water PH close to neutrality, prepare for advanced treating.
The utility model is further improved, and is provided with chimney in the gas vent connecting pipe of the desulfurizing tower.
The beneficial effects of the utility model are:
The generation that dioxin is effectively reduced using pipeline atomization and vaporization device, has cut down the shape of dioxin from source
At.
This system uses the waste water after desulfurization wastewater pretreatment unit to pass through drainpipe connecting pipe atomization and vaporization device, is protecting
Equipment investment and the wasting of resources are not only reduced during card wastewater zero discharge, but also effectively reduces process costs, reduces desulfurization wastewater
The high problem of big operating cost is invested in terms of zero-emission.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawing.
Fig. 1 is smoke processing system schematic diagram used in current electroplating sludge pyrometallurgical smelting；
Fig. 2 is the utility model electroplating sludge pyrometallurgical smelting system schematic.
Wherein: 1, smelting furnace, 2, flue, 3, injector, 4, cyclone dust collectors, 5, Powdered Activated Carbon injector, 6,
Bag filter, 7, desulfurizing tower, 8, chimney, 9, desulfurization wastewater pretreatment unit, 10, drainpipe.
Specific embodiment
The utility model is further described presently in connection with attached drawing.These attached drawings are simplified schematic diagram only to show
Meaning mode illustrates the basic structure of the utility model, therefore it only shows composition related with the utility model.
As shown in Fig. 2, a kind of electroplating sludge pyrometallurgical smelting system, including smelting furnace 1, desulfurizing tower 7 and desulfurization wastewater are pre-
Processing unit 9,1 flue gas discharge opening of smelting furnace are connected to 7 entrance of desulfurizing tower by flue 2, and the outlet of desulfurizing tower 7 and desulfurization are useless
9 inlet duct of water pre-treatment means is connected to, and is provided with chimney 8 in the gas vent connecting pipe of desulfurizing tower 7, desulfurization wastewater is located in advance
9 outlet drainpipe 10 of device is managed, pipeline atomization and vaporization device 3 is provided on flue 2, pipeline atomization and vaporization device 3 wraps
Include smoke inlet, waterwater entrance and gas outlet, 1 flue gas discharge opening of smelting furnace and 3 smoke inlet pipelines of pipeline atomization and vaporization device
Connection, the outlet of drainpipe 10 are connected to 3 waste water mouth of pipeline atomization and vaporization device, and 3 gas outlet of pipeline atomization and vaporization device enters with desulfurizing tower 7
Mouth pipeline connection is passed through processed desulfurization wastewater pretreatment unit 9 is passed through in drainpipe 10 using pipeline atomization and vaporization device 3
Flue-gas temperature is reduced to 200 DEG C by 550 DEG C in 2s in flue 2 by water, avoids the temperature window of dioxin synthesis, from
And the formation of dioxin is effectively reduced.
Also cyclone dust collectors 4 can be provided on the flue 2 at 3 gas outlet of pipeline atomization and vaporization device, be removed in whirlwind
Flue gas and waste water are sufficiently mixed, are turbulent in dirt device 4, and the salts substances that waste water generates while evaporation are collected by cyclone dust collectors 4,
Be conducive to the processing and discharge of desulfurizing tower 7.
Also it can be provided with Powdered Activated Carbon injection apparatus 5 on the flue 2 in 4 exit of cyclone dust collectors, pass through powder
The active carbon that last active carbon injection apparatus 5 ejects carries out the control processing of dioxin, and remaining dioxin is adsorbed on active carbon
On make flue gas qualified discharge.
Also it can be provided with bag filter 6 on the flue 2 of 7 inlet of desulfurizing tower, utilize bag filter 6 into one
Step is filtered processing to the flue gas in flue 2.
Desulfurization wastewater pretreatment unit 9 can be also set as flocculation tanks, settling tank and neutralize case, desulfurizing tower 7 outlet with
The connection of flocculation tanks inlet duct, flocculation tanks outlet are connected to settling tank inlet duct, settling tank outlet and neutralization tank inlet pipeline
Connection neutralizes case outlet and is connected to by drainpipe 10 with 7 waste water mouth of pipeline atomization and vaporization device, using desulfurization wastewater pretreatment unit
9 are flocculated, precipitated and are neutralized, and the suspended matter in waste water is reduced, and are improved waste water Ph value, are prepared for advanced treating.
In actual operation, at 550 DEG C or more, flue gas first passes around the flue-gas temperature of 1 flue gas discharge opening of smelting furnace discharge
Desulfurization wastewater is become gaseous state rapidly by flue-gas temperature in 2s by liquid by pipeline atomization and vaporization device 3 by pipeline atomization and vaporization device 3
It is interior to be reduced to 200 DEG C by 550 DEG C, the temperature window of dioxin synthesis is avoided, waste water is being passed through cyclone dust removal by flue 2
In device 4, flue gas and waste water can be preferably set to mix by cyclone dust collectors 4, turbulent flow, the salt that waste water generates while evaporation
It is collected by cyclone dust collectors 4, a small amount of dioxin passes through the active carbon that Powdered Activated Carbon injector 5 ejects in flue gas, makes two
Dislike English absorption on the activated carbon, flue gas is carrying out further dust removal by filtration by bag filter 6, and flue gas is passing through flue
2 are switched to desulfurizing tower 7, and flue gas flows up in the absorption tower in desulfurizing tower 7 and the loop slurry that is flowed downward is with adverse current
Mode is washed, and loop slurry then passes through the nozzle being arranged in gunite layer and is ejected into absorption tower, so as to remove SO2, SO3, HCL and
HF, the imported air oxidation of by-product reacted under the processing of " forcing oxidation technology " at the same time is gypsum, and is consumed
As the lime stone of absorbent, loop slurry is conveyed upwards into spraying layer by slurry circulating pump, is atomized by nozzle,
Gas and liquid can be enable to come into full contact with, in absorption tower, lime stone is reacted with sulfur dioxide generates gypsum, this part gypsum
Slurries are discharged by calcium plaster liquid pump, and into gypsum dehydration system, treated gas is discharged by chimney, and waste water enters de-
The flocculation tanks of sulphur sewage pretreatment device 9 must be added coagulant and be allowed to be condensed into greatly since the suspension content in waste water is larger
Particle and settle down, common coagulant has aluminum sulfate, aluminium polychloride, ferric trichloride, ferrous sulfate etc.；It commonly helps solidifying
Agent has lime, high polymer coagulant etc..Make colloidal solid and suspended particle that cohesion and aggregation occur using flucculation process, from liquid
It is separated in phase, is kind of the effective ways for reducing suspended matter.So flocculant FeCl is added in flocculation tanks3, make in waste water
Fine particle coacervating large particle and deposit, the weight in the settling tank by desulfurization wastewater pretreatment unit 9, in waste water
Metal ion, alkaline-earth metal often use hydroxide and sulphide precipitation to remove, and common medicament is respectively lime and vulcanized sodium.
After milk of lime is added in desulfurization wastewater, when pH is 9.0-9.5, most of heavy metal ion have been respectively formed the hydroxide of indissoluble
Object；Meanwhile the Ca2+ in milk of lime can also be reacted with the part F mono- in waste water, generated the CaF2 of indissoluble, reached the work of fluorine removal
With；It is neutralized that treated that heavy metal ions in wastewater is still exceeded, so organic sulfur compound is added in flow tank, make its with
The deposition of sulfides that the Hg2+ plasma of remaining ionic state should form indissoluble gets off, and finally passes through desulfurization wastewater pretreatment unit
9 neutralization case, the main function of neutralisation treatment include two aspects: acid-base neutralization reaction occur, adjustment PH sinks in 6-9 ranges
Shallow lake part heavy metal makes the heavy metallic salts such as zinc, copper, nickel generate hydroxide precipitating, and common alkalinity, which neutralizes medicament, lime, stone
A certain amount of 5% lime milk solution is added in lime stone, caustic soda, calcium carbonate etc. that is, in desulfurization wastewater entrance and while case,
The PH of waste water is improved to 9.0 or more, most of heavy metal ion is made to generate the hydroxide precipitating of indissoluble in alkaline environment,
Processed waste water is communicated in pipeline atomization and vaporization device 3 finally by drainpipe 10, completes wastewater zero discharge and reduce two to dislike
The purpose of English synthesis.
It is enlightenment, through the above description, related work people with the above-mentioned desirable embodiment according to the utility model
Member can carry out various changes and amendments in the range of without departing from this item utility model technical idea completely.This item is real
It is not limited to the contents of the specification with novel technical scope, it is necessary to its technology is determined according to scope of the claims
Property range.
Claims (6)
1. a kind of electroplating sludge pyrometallurgical smelting system, including smelting furnace (1), desulfurizing tower (7) and desulfurization wastewater pretreatment unit
(9), smelting furnace (1) flue gas discharge opening is connected to the desulfurizing tower (7) entrance by flue (2), the desulfurizing tower
(7) outlet is connected to desulfurization wastewater pretreatment unit (9) inlet duct, desulfurization wastewater pretreatment unit (9) outlet
Communicated drainage pipe (10), it is characterised in that: arrange pipeline atomization and vaporization device (3) on the flue (2), the pipeline atomization
Evaporator (3) includes smoke inlet, waterwater entrance and gas outlet, smelting furnace (1) flue gas discharge opening and the pipeline mist
Change the connection of evaporator (3) smoke inlet pipelines, drainpipe (10) outlet connects with pipeline atomization and vaporization device (3) the waste water mouth
Logical, the pipeline atomization and vaporization device (3) gas outlet is connected to the desulfurizing tower (7) inlet duct.
2. a kind of electroplating sludge pyrometallurgical smelting system according to claim 1, it is characterised in that: the pipeline atomization and vaporization
Cyclone dust collectors (4) are provided on flue (2) at device (3) gas outlet.
3. a kind of electroplating sludge pyrometallurgical smelting system according to claim 2, it is characterised in that: the cyclone dust collectors
(4) Powdered Activated Carbon injection apparatus (5) are provided on the flue (2) in exit.
4. a kind of electroplating sludge pyrometallurgical smelting system according to claim 3, it is characterised in that: the desulfurizing tower (7) enters
Bag filter (6) are provided on flue (2) at mouthful.
5. a kind of electroplating sludge pyrometallurgical smelting system according to claim 1, it is characterised in that: the desulfurization wastewater is located in advance
Reason device (9) includes flocculation tanks, settling tank and neutralizes case, and desulfurizing tower (7) outlet connects with the flocculation tanks inlet duct
Logical, the flocculation tanks outlet is connected to the settling tank inlet duct, the settling tank outlet and the neutralization tank inlet pipeline
Connection, the neutralization case outlet are connected to by the drainpipe (10) with pipeline atomization and vaporization device (3) the waste water mouth.
6. a kind of electroplating sludge pyrometallurgical smelting system according to claim 1, it is characterised in that: the desulfurizing tower (7)
Chimney (8) are provided in gas vent connecting pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820901492.5U CN208493677U (en) | 2018-06-09 | 2018-06-09 | A kind of electroplating sludge pyrometallurgical smelting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820901492.5U CN208493677U (en) | 2018-06-09 | 2018-06-09 | A kind of electroplating sludge pyrometallurgical smelting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208493677U true CN208493677U (en) | 2019-02-15 |
Family
ID=65288867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820901492.5U Active CN208493677U (en) | 2018-06-09 | 2018-06-09 | A kind of electroplating sludge pyrometallurgical smelting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208493677U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109987771A (en) * | 2019-05-10 | 2019-07-09 | 成都三顶环保科技有限公司 | Method for treating desulfurized wastewater and equipment |
-
2018
- 2018-06-09 CN CN201820901492.5U patent/CN208493677U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109987771A (en) * | 2019-05-10 | 2019-07-09 | 成都三顶环保科技有限公司 | Method for treating desulfurized wastewater and equipment |
| CN109987771B (en) * | 2019-05-10 | 2021-09-10 | 成都三顶环保科技有限公司 | Desulfurization wastewater treatment method and equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI355289B (en) | Method of removing mercury from flue gas after com | |
| CN107337292B (en) | Process flow for deeply treating desulfurization wastewater | |
| CN101817575B (en) | Electric flocculation method and device for recovering and processing desulfurized wastewater | |
| EP2734283B1 (en) | Method for removing impurities from flue gas condensate | |
| CN105254084A (en) | Desulfurization waste water bipolar membrane electrodialysis treatment method and device | |
| CN103951114B (en) | A kind of heavy metal wastewater thereby tertiary treatment and deep purifying reuse technology | |
| CN104085934B (en) | A kind of method of heat-engine plant desulfurized waste water high-efficiency spray evaporation nucleation | |
| CN106746002A (en) | Three-stage for desulfurization wastewater zero-discharge technology softens pre-processing device and method | |
| CN207294431U (en) | Front end joint removing HCl and SO3Desulfurization wastewater zero-discharge treatment system | |
| CN107176726A (en) | Desulphurization for Coal-fired Power Plant waste water integrates defluorination method | |
| CN110745989B (en) | Activated carbon flue gas purification acid-making wastewater zero-discharge process and system | |
| CN109399855A (en) | A kind of zero emission treatment of desulfured waste water | |
| CN208493677U (en) | A kind of electroplating sludge pyrometallurgical smelting system | |
| CN209307119U (en) | A kind of desulfurization wastewater treatment system | |
| CN108191132A (en) | The recovery method of heavy metal in a kind of high villaumite acid waste water | |
| CN208265947U (en) | A kind of less scaling desulfurizing waste water processing device | |
| CN206476848U (en) | A kind of desulfurization wastewater zero-discharge treatment system | |
| CN211770757U (en) | Tail gas purification and waste heat utilization device of hot blast stove for active carbon desorption | |
| CN105621775A (en) | Novel desulfurated wastewater zero-emission treatment device and method | |
| CN108383310A (en) | A kind of quenched desulfurization wastewater flue evaporation and cooperation-removal SO3Method | |
| US20070295669A1 (en) | Method of Treating Strongly Acid Wastewater Containing Harmful Substance | |
| CN107875853A (en) | A kind of coal-burning power plant environmental protection island system and method for cooperateing with zero-emission desulfurization wastewater | |
| CN209143930U (en) | A kind of coal fired power plant desulfurization wastewater dechlorination processing unit | |
| CN108467145A (en) | A kind of less scaling desulfurizing waste water processing device and processing method | |
| CN111892113B (en) | Desulfurization wastewater treatment system with ammonia nitrogen stripping function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |