CN109776001A - A kind of leaching dealkalize of arsenic alkaline slag mill and cement kiln recycling coprocessing system and method - Google Patents
A kind of leaching dealkalize of arsenic alkaline slag mill and cement kiln recycling coprocessing system and method Download PDFInfo
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- CN109776001A CN109776001A CN201910148963.9A CN201910148963A CN109776001A CN 109776001 A CN109776001 A CN 109776001A CN 201910148963 A CN201910148963 A CN 201910148963A CN 109776001 A CN109776001 A CN 109776001A
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- dealkalize
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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
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Abstract
The invention discloses a kind of arsenic alkaline slags to grind leaching dealkalize and cement kiln recycling coprocessing system and technique, arsenic alkaline slag is passed sequentially through broken, mill leaching dealkalize, lye purification and spent liquor evaporation processing, wherein mill leaching dealkalize process is repeatedly washed, alkali content substantially reduces in residue after dealkalize, natrium arsenicum and sodium antimonate are converted into deposit not soluble in water under the action of precipitating reagent in solution, to be conducive to high-temperature calcination, remove the arsenic and antimony in arsenic alkaline slag, the lye generated in treatment process can be evaporated concentration, it is used as medicament or desulfurizing agent etc. is smelted, the solid obtained after filtering can carry out high-temperature calcination, and it is used using calcined residue as cement raw material, save production cost, meet the requirement developed a circular economy with sustainable development.
Description
Technical field
The invention belongs to the processing system of arsenic alkaline slag dealkalize and method more particularly to a kind of leaching dealkalize of arsenic alkaline slag mill and cement
Kiln recycling coprocessing system and method.
Background technique
Antimony is one of ten big non-ferrous metals, up to 120 kinds of the antimony-containing mineral being currently known, but with industrial value only
10 kinds, with the development of science and technology, antimony has been widely used in producing various fire retardants, alloy, ceramics, glass, pigment, half
The fields such as conductor element, medicine and chemical industry.
A kind of arsenic alkaline slag generated hypertoxic smelting containing natrium arsenicum, sodium antimonate and sodium carbonate when being antimony refining process arsenic removal
Waste residue is refined, during being the antimony pyrometallurgical smelting in reverberatory furnace or blast furnace, using addition soda ash (sodium carbonate) and caustic soda (hydroxide
Sodium) method needle antimony is refined, the star metal of the various models of output, while the waste residue generated is arsenic alkaline slag, due to wherein arsenic
Sour sodium contains severe toxicity and soluble easily in water, easy dissolution pollution environment, therefore unsuitable air storage, needs to carry out special storage,
Even so, arsenic leakage event also frequently occurs in arsenic alkaline slag, and the pollution problem of arsenic alkaline slag, which has become, restricts antimony smelting row
The bottleneck factor of industry development.
Currently, the processing method of arsenic alkaline slag has the processing methods such as pyrogenic process, wet process.It is volatilized using oxidizing roasting and handles arsenic alkaline slag
It is easy to bring secondary pollution, and treatment effect is poor.And in wet-treating, the method for generalling use leaching, metallic antimony, metaantimmonic acid
Sodium etc. is retained in arsenic antimony slag, and the soluble sodium salts such as sodium carbonate, natrium arsenicum, sodium sulphate, sodium thiosulfate enter leachate, then
Evaporative crystallization obtains arsenic, alkali salt-mixture, but the salt-mixture is unstable, and application value is little.No matter is existing arsenic alkaline slag disposal technology
Wet process still cremate processing arsenic alkaline slag all there are problems that the residue for still having after arsenide residual, especially wet scrubbing in residue
Middle arsenic content is more than 0.5%, and attribute remains as hazardous waste, along with antimony content is few in current arsenic alkaline slag, takes and melts down smelting
Refining only will increase waste residue amount without economic value.It is long that there is also process flows simultaneously, and processing energy consumption is high, can not long-term safety
The problems such as operating.It takes pyrogenic attack arsenic alkaline slag that the arsenic in arsenic alkaline slag can effectively be made to distil to remove, but due to arsenic alkaline slag
Middle alkali content height causes vitreous clinker to influence equipment safety operation, meanwhile, also increase the selection difficulty to equipment and materials.
108611494 A of patent of invention CN discloses a kind of method of arsenic alkaline slag resource high-efficiency comprehensive utilization, mainly includes
Following steps: (1) it after arsenic alkaline slag being carried out oxidation water logging, is separated by solid-liquid separation, obtains the leachate and antimony of containing sodium carbonate and natrium arsenicum
It is enriched with slag；(2) ammonium hydroxide and/or ammonium salt solution are reacted with alkaline earth oxide and/or transition metal oxide, obtains metal
Ammonium complex ion solution；(3) metal ammonium complex ion solution is added in the leachate of containing sodium carbonate and natrium arsenicum and crystal is raw
Long promotor is reacted, and reaction gained mixed solution successively by ageing, crystallization, precipitating and is separated by solid-liquid separation, and gained solid phase is
Ammonium arsenate metal salt product；(4) (3) are separated by solid-liquid separation gained liquid phase and first pass through the de- ammonium processing of heating, then to be passed through carbon dioxide anti-
Sodium bicarbonate crystal should be precipitated, sodium bicarbonate crystal obtains sodium carbonate product by thermal decomposition.
108441642 A of patent of invention CN proposes the wet process recycling and harmless treatment of a kind of antimony smelting arsenic alkali slag
Arsenic alkaline slag is first crushed by technique, is then leached using the method for two sections of adverse current water loggings to arsenic alkaline slag, will be contained arsenic carbon
Hydrogen peroxide is added in the infusion solution of sour sodium, antimony slag and arsenic containing solution are obtained by filtration after reaction, dioxy will be passed through in arsenic containing solution
Change carbon to carry out purification and impurity removal, transition crystallization, restore heavy arsenic, evaporative crystallization, finally carries out harmless treatment process.
Cooperate with to reduce harmful solid waste to the harm of environment, using cement kiln processing technique to arsenic alkaline slag carry out recycling,
The purpose of harmless treatment, the harmlessness disposing of arsenic alkaline slag is the toxic hazard for eliminating arsenide, antimonide and alkali, is utilized as far as possible
The beneficiating ingredient of its high added value strives turning waste into wealth.
Summary of the invention
During overcoming and taking pyrogenic attack arsenic alkaline slag, since alkali content height causes vitreous clinker shadow in arsenic alkaline slag
Equipment safety operation is rung, meanwhile, there is also equipment and materials to require problem high, that selection difficulty is big, and the present invention utilizes sodium hydroxide
Arsenic alkaline slag is passed sequentially through broken, mill leaching by the feature soluble easily in water with sodium carbonate liquor, lye purifies and it is molten to be concentrated to get caustic soda
Liquid byproduct, the residue alkali content after dealkalize substantially reduce, and natrium arsenicum and sodium antimonate are added calcium oxide or molysite etc. and help in solution
Agent is converted into calcium salt or molysite not soluble in water and enters solid residue, to be conducive to high-temperature calcination, removes the arsenic in arsenic alkaline slag
And antimony, the residue after high-temperature calcination are used as cement raw material.
To achieve the goals above, the invention is realized by the following technical scheme:
The thinking and principle of present invention solution technical problem are as follows:
Firstly, arsenic alkaline slag is broken for using crushing system to be less than the particle slag of 15mm.
Secondly, washing mill leaching is carried out to particle using ball mill by wet process, wherein isolated coarse fodder carries out circulation mill leaching, separation
Fines by combine vortex washer structure repeatedly washed and will for the first time wash after separate liquid collection it is spare, finally
The mud obtained after washing is separated by solid-liquid separation, and obtained solid carries out high-temperature calcination, and using calcined residue as cement
Raw material uses, and obtained liquid returns to stirring pool and carries out circulation washing.
Again, spare liquid being collected after once washing and precipitating reagent being added, obtained top lye is evaporated concentration
After be stored in alkali storage tank, then use dedicated tank car be sent to antimony smeltery as smelt medicament or desulfurizing agent etc. use, lower part
Clear liquid returns to filter plant and is filtered；Lower part precipitating is the deposit containing arsenic and antimony.
Specific solution of the invention is as follows:
A kind of leaching dealkalize of arsenic alkaline slag mill and cement kiln recycling cooperative processing method are provided, comprising the following steps:
S1: arsenic alkaline slag is broken: special purpose vehicle, which is conveyed into factory and is directly entered arsenic alkaline slag, to be unloaded in the discharging pit of garage, through cheating bottom plate
Formula feeder is sent into the particle slag that crusher be broken for less than 15mm and is stored in particle repository；
S2: mill leaching dealkalize: by S1 preparation particle slag from particle repository bottom storehouse draw off after after belt scale metering, by object
Material 1-3 times of quality is added water and carries out washing grinding by ball mill by wet process, grinds mud out and enters stirring pool and stirs, further plus
Water passes through cyclone separator after mixing and is separated, and coarse fodder returns to ball mill by wet process and carries out circular grinding, fines after separation
It is repeatedly washed into combination vortex washer structure, wherein the liquid collection separated after washing for the first time is spare, is repeatedly washed
The mud prepared afterwards is separated by solid-liquid separation by filter plant, obtains solid A and liquid B；
S3, lye purification: will collect spare liquid and precipitating reagent is added in S2, obtain after mixing evenly upper clear supernate C, under
Portion clear liquid D and precipitating E containing arsenic and antimony；
S4, spent liquor evaporation: it is stored in alkali storage tank after upper clear supernate C obtained in S3 is evaporated concentration.
Further, solid A obtained in the S2 carries out high-temperature calcination, and using calcined residue as cement raw material
It uses.
Further, liquid B obtained in the S2 returns to stirring pool and carries out circulation washing.
Further, lower part clear liquid D obtained in the S3 is filtered processing, and the solid obtained after filtering carries out high temperature
Calcining, and used using calcined residue as cement raw material, the liquid obtained after filtering returns to stirring pool and carries out circulation washing.
Further, the precipitating reagent in the S3 is one or more of lime, carbide slag, steel slag.
A kind of system that leaching dealkalize and cement kiln recycling cooperative processing method is ground using arsenic alkaline slag, including it is sequentially connected
Arsenic alkaline slag crushing system, mill leaching dealkalize system, aqueous slkali purification system and lye cryogenic vaporization systems, the arsenic alkaline slag crush system
System uses sealing device, and suction machine is arranged and is used to form tiny structure.
The arsenic alkaline slag crushing system include set gradually unload material room, plate-type feeding, crusher, particle repository；
The mill leaching dealkalize system includes sequentially connected metering feeding machine, ball mill by wet process, slurry-mixing tank, cyclone separator, group
Close vortex washer structure, filter plant, residue heap canopy；The aqueous slkali purification system include sequentially connected precipitation and purification tank,
Chemicals dosing plant；The lye cryogenic vaporization systems include evaporator and alkali storage tank.
Further, the combination vortex washer structure includes at least 2 grades of cyclones, and every level-one cyclone is equipped with
Solid outlet and liquid outlet, wherein the solid outlet of first order cyclone is connected with next stage cyclone, and so on to most
Rear stage cyclone, afterbody cyclone solid outlet are connected with filter plant；The liquid outlet and precipitating of first cyclone
Purification pot is connected, and the liquid outlet of next stage cyclone is connected with previous cyclone.
Further, the precipitation and purification tank be equipped with feed inlet, middle part overflow port, discharge port, the precipitation and purification tank into
Material mouth is connected with the liquid outlet of the first cyclone, and overflow port is connected with low temperature belt rapid steamer in the middle part of the precipitation and purification tank,
The precipitation and purification tank discharge port is connected with filter plant.
Further, automobile discharging pit, automobile washing chlorination equipment is arranged in described unload in material room, and the material room of unloading is closed
Automatic turnstile door and suction opening is arranged in room concrete wall structure.
Further, the filter plant is plate and frame filter press, belt filter press, Principle of Screw Pressure Filter, centrifugal separator
Deng one or more.
Alkali content of the arsenic alkaline slag after overground leaching dealkalize pretreatment in solid residue substantially reduces, and wherein sodium oxide molybdena is less than
3%, alkali content high adverse effect when solving further high-temperature calcination dearsenification.By leaching the soda bath obtained with purification
Middle arsenic content is lower than 0.5mg/kg, can be used as antimony completely and smelts medicament recycling or use as desulfurizing agent etc., can also be used as
Cement raw material uses.
Beneficial effects of the present invention are as follows:
(1) a kind of arsenic alkaline slag mill leaching dealkalize pretreating process System and method for provided by the invention, after treatment, waste residue
In alkali become byproduct, general one ton of arsenic alkaline slag can produce 0.2-0.4 tons of caustic soda (butt)；Alkali content in waste residue is significantly
It reduces, reduces the material quantity for needing to carry out high-temperature calcination, alkali content is high not when solving further high-temperature calcination dearsenification
Good influence needs to consume the energy, cost of disposal is greatly saved to reduce arsenic alkaline slag processing.
(2) present invention designs special wet grinding mill leaching plus combination mode of washing for the characteristic of arsenic alkaline slag disposition, not only sets
Standby simple structure is unique, easy to operate, low cost, and passes through multistage combined washing, it can be ensured that the washing of arsenic alkaline slag is de-
Alkali requirement.
(3) present invention carries out harmless conversion to arsenic alkaline slag by scientific and system method, and waste residue is whole during crushing
It operates under Sealing Arrangement and subnormal ambient, and is handled using high-effective dust-removing equipment, dust emission can achieve national mark
It is quasi-；Dust emission will not be generated using wet grinding mill leaching simultaneously.All slurries are recycled, without discharge of wastewater.
(4) present invention provides a kind of arsenic alkaline slag mill leaching dealkalize pretreating process System and method for, using this programme by arsenic alkali
Dealkalize pretreatment is soaked in sizing, eliminates its toxic hazard.Disposal process of the present invention is short, economize on resources, reduce energy consumption, saving is produced into
This, meets the requirement of circular economy and sustainable development, and the present invention uses unique technological equipment for material characteristic, completely may be used
To organize enlarged industrial production.
Detailed description of the invention
Fig. 1 is arsenic alkaline slag mill leaching dealkalize processing technological flow figure；
Fig. 2 is arsenic alkaline slag mill leaching dealkalize treatment process schematic diagram；
11, material room is unloaded；12, plate-type feeding；13, crusher；14, lifting device；15, particle repository；16, gather dust dress
It sets；111, discharging pit；112, chlorination equipment；
21, metering feeding machine；22, ball mill by wet process；23, slurry-mixing tank；24, cyclone separator；25, combination eddy flow is washed
Wash mechanism；26, filter plant；
251, the first cyclone；252, the second cyclone；253, third cyclone；254, force (forcing) pump；
31, precipitation and purification tank；311, feed inlet；312, middle part overflow port；313, discharge port；
41, evaporator；42, alkali storage tank.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing and specific implementation
Example, the present invention will be described in further detail.
As shown in Fig. 2, grinding leaching dealkalize the present invention provides a kind of arsenic alkaline slag cooperates with treatment process with cement kiln recycling
System, including sequentially connected arsenic alkaline slag crushing system, mill leaching dealkalize system, aqueous slkali purification system and lye low-temperature evaporation system
System, the arsenic alkaline slag crushing system uses sealing device, and suction machine is arranged and is used to form tiny structure.
The arsenic alkaline slag crushing system includes that unload material room 11, plate-type feeding 12, crusher 13, the particle set gradually stores up
Automobile discharging pit 111, automobile washing chlorination equipment 112 is arranged in warehousing 15, described unload in material room, the material room of unloading is mixed for confined chamber
Solidifying soil wall body structure, is arranged automatic turnstile door and suction opening, and special purpose vehicle, which is conveyed into factory and is directly entered arsenic alkaline slag, unloads unloading for material room
In material hole 111, through hole, bottom board type feeder 12 is sent into after crusher 13 be crushed to be sent by lifting device 14 and be stored up in particle
Warehousing 15 stores, and wherein particle repository 15 has been provided with dust arrester installation 16, prevents flour dust overflow.
Mill leaching dealkalize system include sequentially connected metering feeding machine 21, ball mill by wet process 22, slurry-mixing tank 23,
Cyclone separator 24, combination vortex washer structure 25, filter plant 26, residue heap canopy, pass through metering for broken arsenic alkaline slag
Feeder 21 is sent into ball mill by wet process 22 after weighing and carries out washing grinding, and mill mud enters in slurry-mixing tank 23 out plus water stirs
It is separated after mixing uniformly by cyclone separator 24, wherein coarse fodder carries out circular grinding, and fines passes through combination vortex washer
Structure 25 is washed, wherein the liquid after washing for the first time collect it is spare, residue after final washing by filter plant 26 into
Row filtering, and filtered solid is stored in residue heap canopy.
The combined type eddy flow washing mechanism 25 is made of three cyclones, wherein the solid outlet of the first cyclone 251
It is connected with the second cyclone 252, liquid outlet is connected with precipitation and purification tank 31, the solid outlet and third of the second cyclone 252
Cyclone 253 is connected, and liquid outlet is connected with the first cyclone 251, the solid outlet and filter plant 26 of third cyclone 253
It is connected, liquid outlet is connected with the second cyclone 252, and the course of work is that the liquid that the first cyclone 251 is collected enters precipitating
Purification pot 31, the sediment of the first cyclone 251 discharge enter the second cyclone 252, and the liquid that the second cyclone 252 is collected passes through
The pressurization of force (forcing) pump 254 enters the first cyclone 251, and the sediment of the second cyclone 252 discharge enters back into third cyclone 253, the
The liquid that three cuff technique 253 is collected is entered in the second cyclone 252 by the pressurization of force (forcing) pump 254, what third cyclone 253 was discharged
Sediment is directly entered filter plant 26 and is separated by solid-liquid separation.
The filter plant 26 is one of plate and frame filter press, belt filter press, Principle of Screw Pressure Filter, centrifugal separator
Or it is several.
The aqueous slkali purification system includes sequentially connected precipitation and purification tank 31, chemicals dosing plant (being not drawn into figure), institute
Precipitation and purification tank is stated equipped with feed inlet 311, middle part overflow port 312, discharge port 313, the precipitation and purification pot bottom discharge port 313
It is connected by sludge pump with 26 feed inlet of filter plant, is separated by solid-liquid separation together with the sediment after eddy flow washing；Middle part overflow
The liquid of 312 outflow of mouth are connected with evaporator 41, and the precipitation and purification tank 31 is washed by including that 3 washing tanks are combined to realize
The alternately operating washed, precipitate and discharged, the precipitation and purification tank 31 take pneumatic agitation form, are supplied by setting air compressor plant
Stirring air, can also take the washing library of mechanical stirring mode.
The lye cryogenic vaporization systems include evaporator 41 and alkali storage tank 42,31 middle part overflow port of precipitation and purification tank
The liquid of 312 outflows is concentrated by evaporation by evaporator, and the liquid after concentration enters alkali liquid tank storage, evaporates vapor after condensing
The liquid water of formation returns to pool circulating use.
A kind of mill leaching dealkalize of arsenic alkaline slag cooperates with treatment process with cement kiln recycling, as shown in Figure 1, the specific steps are as follows:
Step 1: arsenic alkaline slag is broken
It is directly discharged into arsenic alkaline slag by the arsenic alkaline slag that special purpose vehicle is conveyed into factory to unload in the discharging pit of garage, through cheating bottom board type
Feeder is sent into crusher, is broken for the particle slag less than 15mm and is stored in particle repository.
Step 2: mill leaching dealkalize
By step 1 preparation particle slag from particle repository bottom storehouse draw off after after belt scale metering, by quality of material
1-3 times is added after water and carries out washing grinding by ball mill by wet process, grinds mud out and enters stirring pool stirring, further plus water mixing
It is separated after uniformly by cyclone separator, coarse fodder returns to ball mill by wet process and carries out circular grinding after separation, and fines enters group
Box-like vortex washer structure is washed, wherein the liquid that the first cyclone liquid is collected enters precipitation and purification tank, the first eddy flow
The sediment of the discharge of device enters the second cyclone, and the liquid that the second cyclone is collected enters the first eddy flow by force (forcing) pump pressurization
The sediment of device, the discharge of the second cyclone enters back into third cyclone, the liquid that third cyclone is collected by force (forcing) pump pressurize into
Enter in the second cyclone, the sediment of third cyclone discharge is directly entered after filter plant is separated by solid-liquid separation, obtain solid A and
Liquid B, wherein solid A carries out high-temperature calcination, and uses using calcined residue as cement raw material；Liquid B returns to stirring pool
Carry out circulation washing.
Step 3: lye purification
The liquid that first cyclone liquid in step 2 is collected introduces precipitation and purification tank, and stone is added by chemicals dosing plant
Ash, after mixing evenly by pneumatic stirring device, obtain upper clear supernate C, lower part clear liquid D and precipitating E, wherein upper clear supernate be containing
Lye；Lower part clear liquid D is filtered processing, and the solid that obtains after filtering carries out high-temperature calcination, and using calcined residue as
Cement raw material uses, and the liquid obtained after filtering returns to stirring pool and carries out circulation washing；It is heavy containing arsenic and antimony that E is precipitated in lower part
It forms sediment.
Step 4: spent liquor evaporation
Alkali storage tank is stored in after upper clear supernate C lye obtained in step 3 is evaporated concentration using evaporator
It is interior, then use dedicated tank car to be sent to antimony smeltery as medicament or desulfurizing agent etc. is smelted and use.
The arsenic alkaline slag mill leaching dealkalize pretreating process System and method for that the present invention announces, after treatment, the alkali in waste residue
As byproduct, general one ton of arsenic alkaline slag can produce 0.2-0.4 tons of caustic soda (butt)；Alkali content in waste residue substantially reduces,
Reduce the material quantity for needing to carry out high-temperature calcination, alkali content high bad shadow when solving further high-temperature calcination dearsenification
It rings, needs to consume the energy to reduce arsenic alkaline slag processing, cost of disposal is greatly saved, the lye generated in treatment process can
To be evaporated concentration, used as medicament or desulfurizing agent etc. is smelted.The solid obtained after filtering can carry out high-temperature calcination, and
It is used using calcined residue as cement raw material, disposal process of the present invention is short, economize on resources, reduce energy consumption, saving is produced into
This, meets the requirement of circular economy and sustainable development, using unique technological equipment, can organize enlarged industry raw completely
It produces.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these explanations.For those skilled in the art, do not departing from
Under the premise of present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to protection of the invention
Range.
Claims (10)
1. a kind of arsenic alkaline slag mill leaching dealkalize and cement kiln recycling cooperative processing method, which comprises the following steps:
S1, arsenic alkaline slag are broken: storing after arsenic alkaline slag is broken for the particle slag less than 15mm；
S2, mill leaching dealkalize: the water that 1-3 times is added after the particle slag metering of S1 preparation is ground by ball mill by wet process, will
Mud after grinding is added water and is separated after mixing evenly, and coarse fodder returns to ball mill by wet process and carries out circular grinding after separation, carefully
Expect that entering combination vortex washer structure is repeatedly washed, wherein the liquid collection separated after washing for the first time is spare, is repeatedly washed
The mud prepared after washing obtains solid A and liquid B after being separated by solid-liquid separation；
S3, lye purification: will collect spare liquid and precipitating reagent is added in S2, it is clear to obtain upper clear supernate C, lower part after mixing evenly
Liquid D and precipitating E；
S4, spent liquor evaporation: it is stored in alkali storage tank after upper clear supernate C obtained in S3 is evaporated concentration.
2. arsenic alkaline slag mill leaching dealkalize according to claim 1 and cement kiln recycling cooperative processing method, feature exist
In carrying out high-temperature calcination to solid A obtained in the S2, and used using calcined residue as cement raw material.
3. arsenic alkaline slag mill leaching dealkalize according to claim 1 and cement kiln recycling cooperative processing method, feature exist
In liquid B obtained in the S2 returns to stirring pool and carries out circulation washing.
4. arsenic alkaline slag mill leaching dealkalize according to claim 1 and cement kiln recycling cooperative processing method, feature exist
In lower part clear liquid D obtained in the S3 is filtered processing, and the solid obtained after filtering carries out high-temperature calcination, and will calcining
Residue afterwards is used as cement raw material, and the liquid obtained after filtering returns to stirring pool and carries out circulation washing.
5. arsenic alkaline slag mill leaching dealkalize according to claim 1 and cement kiln recycling cooperative processing method, feature exist
In the precipitating reagent in the S3 is one or more of lime, carbide slag, steel slag.
6. a kind of cooperate with processing side with cement kiln recycling using the mill leaching dealkalize of arsenic alkaline slag described in claim 1-5 any one
The arsenic alkaline slag mill leaching dealkalize of method and cement kiln recycling coprocessing system, which is characterized in that including sequentially connected arsenic alkaline slag
Crushing system, mill leaching dealkalize system, aqueous slkali purification system and lye cryogenic vaporization systems, the arsenic alkaline slag crushing system use
Sealing device, and suction machine is set and is used to form tiny structure；
The arsenic alkaline slag crushing system include set gradually unload material room, crusher, particle repository；The mill soaks dealkalize system
Including sequentially connected ball mill by wet process, slurry-mixing tank, cyclone separator, combination vortex washer structure, filter plant, residue
Heap canopy；The aqueous slkali purification system includes sequentially connected precipitation and purification tank, chemicals dosing plant；The lye cryogenic vaporization systems
Including evaporator and alkali storage tank.
7. arsenic alkaline slag mill leaching dealkalize according to claim 6 and cement kiln recycling coprocessing system, feature exist
In the combination vortex washer structure includes at least 2 grades of cyclones, and every level-one cyclone is equipped with solid outlet and liquid
Outlet, wherein the solid outlet of first order cyclone is connected with next stage cyclone, and so on to afterbody cyclone, most
Rear stage cyclone solid outlet is connected with filter plant；The liquid outlet of first cyclone is connected with precipitation and purification tank, next
The liquid outlet of grade cyclone is connected with previous cyclone.
8. arsenic alkaline slag mill leaching dealkalize according to claim 6 and cement kiln recycling coprocessing system, feature exist
In the precipitation and purification tank is equipped with feed inlet, middle part overflow port, discharge port, the precipitation and purification tank feed inlet and the first eddy flow
The liquid outlet of device is connected, and overflow port is connected with evaporator in the middle part of the precipitation and purification tank, the precipitation and purification tank discharge port and
Filter plant is connected.
9. arsenic alkaline slag mill leaching dealkalize according to claim 6 and cement kiln recycling coprocessing system, feature exist
In automobile discharging pit, automobile washing chlorination equipment is arranged in described unload in material room, the material room of unloading is confined chamber concrete wall knot
Automatic turnstile door and suction opening is arranged in structure.
10. arsenic alkaline slag mill leaching dealkalize according to claim 6 and cement kiln recycling coprocessing system, feature exist
In the filter plant is one or more of plate and frame filter press, belt filter press, Principle of Screw Pressure Filter, centrifugal separator.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110026415A (en) * | 2019-05-22 | 2019-07-19 | 长沙中硅水泥技术开发有限公司 | A kind of waste residue mill maceration poison and deaerate integrated processing system and its processing method |
| CN113499724A (en) * | 2021-07-12 | 2021-10-15 | 翱华工程技术股份有限公司 | Carbide slag slurry manufacturing equipment, carbide slag slurry manufacturing method and carbide slag slurry |
| CN114772625A (en) * | 2022-04-12 | 2022-07-22 | 四川大学 | Method for dissolving out calcium ions in carbide slag and method for mineralizing and storing CO by using calcium ions in carbide slag2Application of co-produced light calcium carbonate |
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