CN109706327A - A kind of method of harmlessness disposing beryllium slag - Google Patents
A kind of method of harmlessness disposing beryllium slag Download PDFInfo
- Publication number
- CN109706327A CN109706327A CN201811624398.0A CN201811624398A CN109706327A CN 109706327 A CN109706327 A CN 109706327A CN 201811624398 A CN201811624398 A CN 201811624398A CN 109706327 A CN109706327 A CN 109706327A
- Authority
- CN
- China
- Prior art keywords
- slag
- beryllium
- lead
- blast furnace
- furnace
- 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.)
- Granted
Links
Classifications
-
- 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
Landscapes
- Processing Of Solid Wastes (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
A kind of method of harmlessness disposing beryllium slag, it is using beryllium slag as Lead Smelting in Blast Furnace with slag type auxiliary material, it is crushed, mixes together with the raw material of blast furnace tradition refining lead, it is put into after molded piece of furnace charge in blast furnace and carries out melting by traditional lead-smelting method, soluble beryllium sulfate in beryllium slag thermally decomposes in fusion process, is oxidized to beryllium oxide, it is dispersed in the slag forming constituents silicon, iron, calcium of furnace charge, after slag making melts, beryllium oxide is coated by ferrosilicon calcium slag, so as to carry out decrement grade to the soluble beryllium sulfate in beryllium slag, and can not be dissolved out by acid rain environment.The present invention can utilize the equipment and mature technology of existing Lian Qian enterprise, carry out extensive harmlessness disposing, can save a large amount of environmentally friendly special fund investment, economic benefit and environmental benefit are higher；Slag after disposition has accomplished " decrement grade ", " innoxious ", and recycling.
Description
Technical field
This method is related to non-ferrous metal lead smelting slag making technology and field of environment protection, and in particular to a kind of harmlessness disposing
The method of beryllium slag.
Background technique
In the production process of beryllium, generally with after beryl mineral of the moral Gu Safa processing containing beryllium, a large amount of leaching can be left
It slags tap, is commonly called as " beryllium slag ".This leached mud more or less always contains a certain proportion of water when carrying out solid-liquor separation in slag,
Often toxic soluble beryllium salt (beryllium sulfate) exists in these water.Since industrialized production emphasizes production efficiency, therefore beryllium
The practical Con trolling index of residual beryllium amount in slag is generally 0.1~0.5%.This index is for environmental protection index can not
Receive, therefore this beryllium slag is all built dedicated place by manufacturer is reliably sealed up for safekeeping, because the beryllium slag once spills into living environment,
Height will be caused to endanger.
Although sealing up for safekeeping to beryllium slag profession is effective method, there is hidden danger always.Basic method be to its into
The innoxious even disposal of resources of row.The beryllium that attempts have been made is disposed it, but was disposed with the method for high-temperature roasting
Slag is tested by GB5085.3-2007 hazardous waste judging standard leaching characteristic identification, and detection beryllium content is exceeded.Somebody's high temperature
Ingredient solidification disposition is mixed as cement concrete after baked beryllium ground-slag is broken, is had with GB5085.3-2007 standard testing bright
Aobvious environment protecting, but amount of allocating is sensitive to the intensity effect of concrete, and to Construction Quality, there are hidden danger, therefore promote and apply
It is more difficult, it can not dispose on a large scale.
Summary of the invention
The purpose of the present invention is: above-mentioned problems of the prior art are directed to, propose a kind of harmlessness disposing beryllium slag
Soluble beryllium salt in beryllium slag is fired into beryllium oxide through tradition refining lead technology, carries out decrement grade to it, and make beryllium oxide by method
It is melt cinder ladle to cover, so that beryllium oxide can not be dissolved under acid rain environment.Because beryllium oxide stablize relative to water it is insoluble, but
Under acid rain environment, beryllium oxide has the risk being dissolved.
In order to achieve the above object, the technical scheme adopted by the invention is that: a kind of method of harmlessness disposing beryllium slag, this method
Steps are as follows:
A. match slag type auxiliary material using beryllium slag as Lead Smelting in Blast Furnace, be added in the raw material of blast furnace tradition refining lead, be crushed,
It mixes, molded piece of furnace charge；Wherein, the additional amount of beryllium slag is the 5-15% of beryllium slag and tradition refining leady raw materials total weight, additional amount
It is too small not on a large scale, it is excessive that lead system production economy can be produced bigger effect；
B. the type block furnace charge being pressed into is put into and carries out melting by traditional lead-smelting method in blast furnace and (when melting, coke and helps
Addition, the generation of thick alloy and the treatment process of flue gas for firing air are all the prior art, and details are not described herein), in beryllium slag
Soluble beryllium sulfate thermally decomposes in fusion process, is oxidized to beryllium oxide, is dispersed in the slag forming constituents silicon, iron, calcium of furnace charge, warp
After slag making melting, beryllium oxide is coated by ferrosilicon calcium slag.
Type block furnace charge is put into after blast furnace during carrying out high temperature reduction melting by traditional lead-smelting method, lead and other
Valuable metal is reduced into metal and the congruent melting of major product lead into thick alloy, flows out from cupola well；Soluble beryllium sulfate in beryllium slag
Thermally decomposed under furnace high-temperature, beryllium rapid oxidation at beryllium oxide, the beryllium oxide of generation be dispersed in the slag forming constituents silicon of furnace charge, iron,
In calcium, by the slag type selected when ingredient, the slag making congruent melting in furnace melts into network-like ferrosilicon calcium slag (again with those slag forming constituents
Claim ferrosilicon lime glass ceramics), and beryllium oxide is then covered by ferrosilicon lime glass ceramics.Slag stream caused by during those refining lead
It is sufficiently overheated when crossing bed coke layer in furnace, outside cinder notch outflow furnace, into flushing cinder water channel, is broken up by high pressure water, chilling is at granularity
In the fine slag (being commonly called as Water Quenching Slag) of 1~3mm range.
In above-mentioned steps a, the shape of molded piece of furnace charge can be brick shape, cylinder etc., by traditional Lead Smelting in Blast Furnace side
Requirement carry out type block compacting of the method to raw material.
The present invention using beryllium slag as with slag type auxiliary material and refining leady raw materials match blast furnace after, be completely by traditional blast furnace
The method for refining lead carries out.By the way that beryllium slag is carried out lower content ingredient, content of the beryllium in end product is greatly lowered, i.e.,
It is commonly called as " decrement grade "；The soluble beryllium salt of trace level in beryllium slag is dispersed in slag forming constituents ferrosilicon by thermal decomposition, oxidation
In calcium, it is melt into ferrosilicon calcium slag altogether through slag making, and beryllium oxide is then by the ferrosilicon lime glass ceramic coatings of networking, so as to make
Beryllium oxide can not be dissolved out by acid rain, be achieved the purpose that innoxious.This ferrosilicon calcium slag containing micro harmless beryllium because its iron content compared with
Height can increase clinker for cement industry and match iron, can also crush its fine grinding and stir as mixed mud as no beryllium clinker
Mix the cheap filling ingredient at station.
By the method for the present invention dispose beryllium slag, have the advantages that first, using existing Lian Qian enterprise equipment capacity,
Extensive harmlessness disposing is carried out, a large amount of environmentally friendly special fund investment can be saved；Second, using lead enterprise mature technology and
Management operation, cost of disposal is lower, and economic benefit and environmental benefit are higher；Third, the slag after disposition accomplished " decrement grade ",
" innoxious ", and it is recycling, reach the tidemark of the environmental protection disposition of " recycling ".
Specific embodiment
Embodiment 1
By taking the one of Leiyang is that the raw materials such as various flue dust, leached mud are refined with certain enterprise of lead using secondary resource as an example.The enterprise
Industry possesses a 6 ㎡ blast furnaces, and the 200T of production processing daily refines leady raw materials, and raw materials for production and beryllium slag ingredient are detailed in the following table 1:
1 blast furnace tradition of table refines leady raw materials and beryllium slag ingredient table
By enterprise's lead smelting technology requirement, the furnace charge for entering blast furnace should meet following requirement by weight: Pb 25~
30%, As 0.5~3.5%, SiO25~8%, Fe 18~23%, CaO 4~6%.Combine material composition table through setting thus
Batch formula (weight ratio), which is calculated, is: 1. lead fume ash: 2. lead mud: 3. iron cement: 4. iron powder: 5. calcium mountain flour: 6. beryllium slag=
38: 10: 18: 20: 4: 10, be by this ingredient (weight ratio) for being made into material: Pb 29.71%, S 4.31%, As 1.1%,
Be 0.03%, SiO26.04%, Fe 22.4%, CaO 5.1%, in addition to the beryllium of trace level, food ingredient meets the enterprise and enters
Furnace charge standard energy normal smelting.After shaft smelting, there are about 55~65 weight % and sulphur and arsenic to generate sulphur for the iron of matching in furnace charge
Scum and arsenic scum, remaining iron cause molten silicate slag with silicon, calcium in the form of ferrous oxide, and micro in the beryllium slag of supplying can
Dissolubility beryllium sulfate salt undergoes thermal decomposition, oxidation and the common slagging process of ferrosilicon calcium in furnace.Since micro beryllium oxide is fused to greatly
In the ferrosilicon calcium slag of amount, surface surrounded entirely by networking formed it is actual be isolated from the outside, the calcium of ferrosilicon containing beryllium of generation is molten
Slag typical composition (weight ratio) is: SiO228~35%, Fe 18~22%, CaO 14~17%, BeO 0.06~0.08%.
It is diametrically the sand shape of 1~3mm after water quenching.It is tested through GB5085.3-2007 hazardous waste leaching characteristic identification, leachate
Beryllium is not detected, therefore assert beryllium Slag treatment object " Non-toxic ".During the present embodiment, coexistence sets 200 tons of beryllium slag, test-manufactures 10 days
Time, about 850 yuan/ton of cost of disposal per ton, in addition because have in beryllium slag about 2.7% lead tolerance, shaft smelting disposition when
It is recycled together, direct yield 88%, adds about 475 yuan/ton per ton of increment, the cost of actual treatment beryllium slag per ton is about after phase offset
It is 375 yuan/ton.
Comparative example
The beryllium quantity of slag of supplying is greatly improved to 20 weight %, is only tried 2 days, compares economic benefit with embodiment 1.Production equipment
Same as Example 1 with raw material and technique, specific batch formula (weight) is: 1. lead fume ash: 2. lead mud: 3. iron cement: 4. iron
Powder: 5. calcium mountain flour: 6. beryllium slag=28: 10: 18: 20: 4: 20, it is Pb by this chemical examination ingredient (weight ratio) for being made into material
23.21%, S 4.41%, As 0.95%, Be 0.06%, SiO28.44%, Fe 19.4%, CaO 6.1%.Through blast furnace
It is SiO that melting, which generates slag composition (weight ratio),234.8%, Fe 19.5%, CaO 17.5%, Be 0.13%.This clinker warp
GB5805.3-2007 standard testing detects Trace Beryllium, but not exceeded, still belongs to innocuousness, and still, lead content reduces in ingredient, melts
Resulting coarse-lead alloy is refined to be substantially reduced than embodiment 1.Therefore, the ingredient accounting of beryllium slag should be controlled, not so beryllium slag dosage mistake
It will have a direct impact on refining lead benefit greatly.
Claims (2)
1. a kind of method of harmlessness disposing beryllium slag, which is characterized in that the method steps are as follows:
A. match slag type auxiliary material using beryllium slag as Lead Smelting in Blast Furnace, be added in the raw material of blast furnace tradition refining lead, be crushed, mix
It is even, molded piece of furnace charge；Wherein, the additional amount of beryllium slag is the 5-15% of beryllium slag and tradition refining leady raw materials total weight；
B. the type block furnace charge being pressed into is put into blast furnace and carries out melting by traditional lead-smelting method, the soluble beryllium sulfate in beryllium slag
It thermally decomposed in fusion process, be oxidized to beryllium oxide, be dispersed in the slag forming constituents silicon, iron, calcium of furnace charge, after slag making melts,
Beryllium oxide is coated by ferrosilicon calcium slag.
2. a kind of method of harmlessness disposing beryllium slag as described in claim 1, which is characterized in that the beryllium oxide that is coated with
Ferrosilicon calcium slag through blast furnace bed coke layer by cinder notch outflow furnace outside during, broken up by high pressure water, chilling at granularity be 1~
The fine slag of 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811624398.0A CN109706327B (en) | 2018-12-28 | 2018-12-28 | Method for harmlessly treating beryllium slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811624398.0A CN109706327B (en) | 2018-12-28 | 2018-12-28 | Method for harmlessly treating beryllium slag |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109706327A true CN109706327A (en) | 2019-05-03 |
| CN109706327B CN109706327B (en) | 2021-06-11 |
Family
ID=66259128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811624398.0A Active CN109706327B (en) | 2018-12-28 | 2018-12-28 | Method for harmlessly treating beryllium slag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109706327B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111517809A (en) * | 2020-05-06 | 2020-08-11 | 宜宾红星电子有限公司 | Method for preparing beryllium oxide ceramic powder from waste beryllium oxide ceramic |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040159188A1 (en) * | 2003-02-17 | 2004-08-19 | Pekguleryuz Mihriban O. | Strontium for melt oxidation reduction of magnesium and a method for adding stronium to magnesium |
| CN105344698A (en) * | 2015-11-25 | 2016-02-24 | 上海绿澄环保科技有限公司 | Method for treating specific pollutants through high-temperature melting technology |
| CN107191943A (en) * | 2017-04-26 | 2017-09-22 | 韶关绿然再生资源发展有限公司 | Incineration disposal draff processing method |
| CN107363072A (en) * | 2017-06-30 | 2017-11-21 | 中国恩菲工程技术有限公司 | The fused bath smelting method of waste |
| CN206911916U (en) * | 2017-05-03 | 2018-01-23 | 江苏天楹环保能源成套设备有限公司 | A kind of refuse incineration flying dust electric arc melting system |
-
2018
- 2018-12-28 CN CN201811624398.0A patent/CN109706327B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040159188A1 (en) * | 2003-02-17 | 2004-08-19 | Pekguleryuz Mihriban O. | Strontium for melt oxidation reduction of magnesium and a method for adding stronium to magnesium |
| CN105344698A (en) * | 2015-11-25 | 2016-02-24 | 上海绿澄环保科技有限公司 | Method for treating specific pollutants through high-temperature melting technology |
| CN107191943A (en) * | 2017-04-26 | 2017-09-22 | 韶关绿然再生资源发展有限公司 | Incineration disposal draff processing method |
| CN206911916U (en) * | 2017-05-03 | 2018-01-23 | 江苏天楹环保能源成套设备有限公司 | A kind of refuse incineration flying dust electric arc melting system |
| CN107363072A (en) * | 2017-06-30 | 2017-11-21 | 中国恩菲工程技术有限公司 | The fused bath smelting method of waste |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111517809A (en) * | 2020-05-06 | 2020-08-11 | 宜宾红星电子有限公司 | Method for preparing beryllium oxide ceramic powder from waste beryllium oxide ceramic |
| CN111517809B (en) * | 2020-05-06 | 2022-04-12 | 宜宾红星电子有限公司 | Method for preparing beryllium oxide ceramic powder from waste beryllium oxide ceramic |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109706327B (en) | 2021-06-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106191344B (en) | A kind of method for mixing the production of slag melting and reducing and modifier treatment | |
| US5496392A (en) | Method of recycling industrial waste | |
| CN106048109B (en) | A kind of method for mixing the recycling of slag melting and reducing and modifier treatment | |
| CN108676942A (en) | The materials such as a kind of iron content and/or zinc lead bronze tin cooperate with processing recovery method with molten steel slag | |
| US7811379B2 (en) | Regenerated calcium aluminate product and process of manufacture | |
| US5364447A (en) | Method of recycling hazardous waste | |
| CN107653381A (en) | The method of the production containing the slag melting and reducing of zinc and iron | |
| CN107699702A (en) | A kind of method that valuable component is reclaimed by cupric slag | |
| US5198190A (en) | Method of recycling hazardous waste | |
| CN107663589A (en) | A kind of method by the nickeliferous mixing slag recovery valuable component with iron | |
| RU2226220C2 (en) | Steelmaking slag reprocessing method | |
| CN106755651A (en) | A kind of method reclaimed containing rare earth and/or niobium slag metallurgy one-step method | |
| CN107699701A (en) | By the method containing zinc and the mixing slag recovery valuable component of iron | |
| CN107674985A (en) | By the method for zinc abstraction slag recovery valuable component | |
| CN106544464A (en) | Environment-friendly type splashing slag in converter material and preparation method thereof | |
| CN104805250A (en) | High-temperature slag continuous modification processing method | |
| CN107201424A (en) | The technique that a kind of utilization electrolytic aluminium factory aluminium cell slag from delining produces deoxidizer in steel production | |
| CN106755658A (en) | A kind of method of the metallurgical also original production of titanium-containing slag | |
| CN106755653A (en) | A kind of method containing rare earth or the also original production of niobium slag metallurgy melting | |
| CN106755655A (en) | A kind of recovery method for mixing the reduction of slag metallurgy melting | |
| CN106755657A (en) | A kind of method that titaniferous mixing slag metallurgy melting reduction is reclaimed | |
| CN109706327A (en) | A kind of method of harmlessness disposing beryllium slag | |
| CN106755659A (en) | A kind of method that the slag of mixing containing rare earth metallurgy melting reduction is reclaimed | |
| CN114150098B (en) | Method for preparing premelted calcium aluminate and metallic iron by reducing iron ore with secondary aluminum ash | |
| CN110724821A (en) | Method for comprehensively recovering valuable metals from low-grade multi-metal hazardous wastes |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |