CN105032603A - Method for recycling ferrosilicon from underflow thin slurry in calcium carbide generator - Google Patents
Method for recycling ferrosilicon from underflow thin slurry in calcium carbide generator Download PDFInfo
- Publication number
- CN105032603A CN105032603A CN201510473440.3A CN201510473440A CN105032603A CN 105032603 A CN105032603 A CN 105032603A CN 201510473440 A CN201510473440 A CN 201510473440A CN 105032603 A CN105032603 A CN 105032603A
- Authority
- CN
- China
- Prior art keywords
- underflow
- slurry
- silicon iron
- separated
- particle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention relates to the technical field of ferrosilicon recycling, in particular to a method for recycling ferrosilicon from underflow thin slurry in a calcium carbide generator. The method includes the following steps that firstly, the underflow thin slurry in the calcium carbide generator enters a buffering tank, and the uniform underflow thin slurry is obtained; secondly, the uniform underflow thin slurry passes through a vibration screen, so that ferrosilicon particles with the diameter larger than 2 mm and smaller than 5 mm and particle slurry with the diameter smaller than or equal to 2 mm are obtained; and thirdly, the particle slurry with the diameter smaller than or equal to 2 mm obtained through the vibration screen enters a centrifugal machine, first wash water is added into the centrifugal machine at the same time, and the supplied material is further separated after centrifugal separation, so that ferrosilicon particles are obtained. The method for recycling the ferrosilicon from the underflow thin slurry in the calcium carbide generator effectively realizes recycling of the ferrosilicon from the underflow thin slurry in the calcium carbide generator, actually changes waste into valuable, and realizes recycling of resources. Meanwhile, the underflow thin slurry in the calcium carbide generator is pre-treated, the cost is reduced, and environmental pressure is also lowered.
Description
Technical field
the present invention relates to silicon iron recovery technology field, is a kind of method reclaiming silicon iron from the underflow dilute slurry in carbide generator.
Background technology
except containing except main component calcium hydroxide in underflow dilute slurry in reactor, also containing the solid impurity not participating in hydrolysis as silicon iron, coke fines, the residual rod of electrode and there is no complete hydrolysis and wrapped micro-calcium carbide particle, be dissolved in the gaseous substances such as the acetylene in underflow dilute slurry.In traditional handicraft, the underflow dilute slurry in reactor directly being discharged or do not dealt with directly is transported in follow-up workshop section, the silicon iron in the underflow dilute slurry in reactor is made to can not get recycling, cause the wasting of resources of silicon iron, underflow dilute slurry directly discharges and also pollutes environment simultaneously.
Summary of the invention
the invention provides a kind of method reclaiming silicon iron from the underflow dilute slurry in carbide generator, overcome the deficiency of above-mentioned prior art, its silicon iron that can effectively solve in the underflow dilute slurry in reactor can not get recycling, cause the wasting of resources of silicon iron, underflow dilute slurry directly discharges the problem also polluted environment.。
technical scheme of the present invention is realized by following measures: a kind of method reclaiming silicon iron from the underflow dilute slurry in carbide generator, carry out in the steps below, the first step, the underflow dilute slurry in carbide generator enters in surge tank, obtains uniform underflow dilute slurry; Second step, uniform underflow dilute slurry, by vibratory sieve, obtains being greater than 2mm and is less than the silicon iron particulate material of 5mm and is less than or equal to the particle slurry of 2mm; 3rd step, the particle slurry being less than or equal to 2mm obtained by vibratory sieve enters in centrifuge, adds the first flushing water in centrifuges simultaneously, through centrifugation, carries out further separating treatment to supplied materials, obtain the silicon iron particle being less than or equal to 2mm; 4th step, enters mine distributor after silicon iron particulate material that 2mm is less than 5mm that what the silicon iron particle being less than or equal to 2mm after centrifuge is separated and vibratory sieve were separated be greater than mixes; 5th step, the shaking table that the particle after being distributed by mine distributor enters at least 2 again carries out final election again and is separated, and adds the second flushing water in every platform shaking table simultaneously, is separated after mixing obtains silicon iron through every platform shaking table final election.
here is the further optimization and/or improvements to foregoing invention technical scheme:
the water consumption of above-mentioned first flushing water is 10m
3
/ h to 20m
3
/ h, the second flushing water water consumption is 1.14m
3
/ h to 4.5m
3
/ h.
in a first step above-mentioned, the overflowing liquid in surge tank enters slag slurry concentration basin; In the third step, after centrifuge carries out separating treatment to supplied materials further, the water slurry separated sends into slag slurry concentration basin; In the 5th step, the particle that proportion is larger after shaking table final election is separated and water slurry enter slag slurry concentration basin.
above-mentioned obtaining after shaking table final election is separated finally enters tailings pond containing coke granule, the tailings of calcium carbide particle that is wrapped in calcium hydroxide.
the mass percentage concentration of the underflow dilute slurry in above-mentioned carbide generator is 3% to 12%.
above-mentionedly obtain silicon iron and be divided into two parts after shaking table final election is separated, the particle diameter of a part is 2mm to 5mm, and the particle diameter of another part is 0.043mm to 2mm.
the vibration frequency of above-mentioned vibratory sieve is 16 hertz to 24 hertz.
above-mentioned centrifuge is continuous ore discharge type centrifuge, and rotating speed is 500 revs/min.
the vibration frequency of above-mentioned shaking table is 45 hertz to 48 hertz.
the present invention efficiently solves the silicon iron recycling problem in carbide generator underflow dilute slurry, really accomplish to turn waste into wealth, achieve the recycling of resource, pretreatment has been carried out to the underflow dilute slurry in carbide generator simultaneously, reduced costs the pressure simultaneously reducing environment.
Accompanying drawing explanation
accompanying drawing 1 is process chart of the present invention.
Detailed description of the invention
the present invention by the restriction of following embodiment, can not determine concrete embodiment according to technical scheme of the present invention and actual conditions.
in the present invention, for convenience of description, the description of the relative position relation of each parts is all be described according to the Butut mode of Figure of description, as: the position relationship of upper and lower, left and right etc. determines according to the Butut direction of Figure of description.
below in conjunction with embodiment and accompanying drawing, the invention will be further described:
embodiment 1, as shown in Figure 1, the method that should reclaim silicon iron from the underflow dilute slurry in carbide generator is carried out in the steps below, the first step, and the underflow dilute slurry in carbide generator enters in surge tank, obtains uniform underflow dilute slurry; Second step, uniform underflow dilute slurry, by vibratory sieve, obtains being greater than 2mm and is less than the silicon iron particulate material of 5mm and is less than or equal to the particle slurry of 2mm; 3rd step, the particle slurry being less than or equal to 2mm obtained by vibratory sieve enters in centrifuge, adds the first flushing water in centrifuges simultaneously, through centrifugation, carries out further separating treatment to supplied materials, obtain the silicon iron particle being less than or equal to 2mm; 4th step, enters mine distributor after silicon iron particulate material that 2mm is less than 5mm that what the silicon iron particle being less than or equal to 2mm after centrifuge is separated and vibratory sieve were separated be greater than mixes; 5th step, the shaking table that the particle after being distributed by mine distributor enters at least 2 again carries out final election again and is separated, and adds the second flushing water in every platform shaking table simultaneously, is separated after mixing obtains silicon iron through every platform shaking table final election.The quantity of shaking table is preferably 4; The rate of recovery being reclaimed silicon iron by the present invention from the underflow dilute slurry in carbide generator reaches 70% to 80%, makes the silicon iron in the underflow dilute slurry in carbide generator obtain recycling, thus greatly reduces cost.
embodiment 2, as the optimization of above-described embodiment, the first washing water quantity being 15KwH by centrifuge power is 10m
3
/ h to 20m
3
/ h; The second washing water quantity being 1.1KwH to 2.2KwH by shaking table power is 1.14m
3
/ h to 4.5m
3
/ h.
embodiment 3, as the optimization of above-described embodiment, as shown in Figure 1, in a first step, the overflowing liquid in surge tank enters slag slurry concentration basin; In the third step, after centrifuge carries out separating treatment to supplied materials further, the water slurry separated sends into slag slurry concentration basin; In the 5th step, the particle that proportion is larger after shaking table final election is separated and water slurry enter slag slurry concentration basin.Supernatant in slag slurry concentration basin also can be used for the first flushing water and the second flushing water.
embodiment 4, as the optimization of above-described embodiment, as shown in Figure 1, obtains finally entering tailings pond containing coke granule, the tailings of calcium carbide particle that is wrapped in calcium hydroxide after shaking table final election is separated.
embodiment 5, as the optimization of above-described embodiment, the underflow dilute slurry mass concentration in carbide generator is 3% to 12%.Be preferably the underflow dilute slurry of mass concentration 6%.
embodiment 6, as the optimization of above-described embodiment, obtain silicon iron and be divided into two parts after shaking table final election is separated, the particle diameter of a part is 2mm to 5mm, and the particle diameter of another part is 0.043mm to 2mm.
embodiment 7, as the optimization of above-described embodiment, the vibration frequency of vibratory sieve is 16 hertz to 24 hertz.The screen cloth number of plies of vibratory sieve is 1 layer, treating capacity is 20 tons/and little of 25 tons/hour.
embodiment 8, as the optimization of above-described embodiment, centrifuge is continuous ore discharge type centrifuge, and rotating speed is 500 revs/min.In underflow dilute slurry in discarded carbide generator after centrifuge sorting, silicon iron particle size is less than 0.074mm, and the average silicon iron that reclaims is greater than more than 15 tons/day.
embodiment 9, as the optimization of above-described embodiment, the vibration frequency of shaking table is 45 hertz to 48 hertz.Shaking table is the bent ripple bed surfaces of 120 grooves, and transmission is eccentric rod gear bed surface length ratio is 2.6, and maximum is 2mm to ore deposit dynamics.The inclination bed surface with reflex bar carries out, send into containing the feed launder of silicon iron particle mineral aggregate from angle bed surface, supply laterally the second flushing water by feed trough simultaneously, so mineral aggregate is at gravity, horizontal flowing water impulse force, bed surface by proportion and granularity layering, and travels longitudinally along bed surface and does transverse movement along inclination bed surface under doing the effect of inertia that reciprocal assymmetric motion produces and frictional force.Therefore, the proportion ore particle different with granularity is fan-shaped flowing down by A limit to B limit along the respective direction of motion gradually, finally obtains silicon iron particle.
above technical characteristic constitutes embodiments of the invention, and it has stronger adaptability and implementation result, can increase and decrease non-essential technical characteristic according to actual needs, meet the demand of different situations.
Claims (10)
1. from the underflow dilute slurry in carbide generator, reclaim a method for silicon iron, it is characterized in that carrying out in the steps below, the first step, the underflow dilute slurry in carbide generator enters in surge tank, obtains uniform underflow dilute slurry; Second step, uniform underflow dilute slurry, by vibratory sieve, obtains being greater than 2mm and is less than the silicon iron particulate material of 5mm and is less than or equal to the particle slurry of 2mm; 3rd step, the particle slurry being less than or equal to 2mm obtained by vibratory sieve enters in centrifuge, adds the first flushing water in centrifuges simultaneously, through centrifugation, carries out further separating treatment to supplied materials, obtain the silicon iron particle being less than or equal to 2mm; 4th step, enters mine distributor after silicon iron particulate material that 2mm is less than 5mm that what the silicon iron particle being less than or equal to 2mm after centrifuge is separated and vibratory sieve were separated be greater than mixes; 5th step, the shaking table that the particle after being distributed by mine distributor enters at least 2 again carries out final election again and is separated, and adds the second flushing water in every platform shaking table simultaneously, is separated after mixing obtains silicon iron through every platform shaking table final election.
2. the method reclaiming silicon iron from the underflow dilute slurry in carbide generator according to claim 1, the water consumption of the first flushing water is 10m
3/ h to 20m
3/ h, the second flushing water water consumption is 1.14m
3/ h to 4.5m
3/ h.
3. the method reclaiming silicon iron from the underflow dilute slurry in carbide generator according to claim 1 and 2, is characterized in that in the first step, and the overflowing liquid in surge tank enters slag slurry concentration basin; In the third step, after centrifuge carries out separating treatment to supplied materials further, the water slurry separated sends into slag slurry concentration basin; In the 5th step, the particle that proportion is larger after shaking table final election is separated and water slurry enter slag slurry concentration basin.
4. the method reclaiming silicon iron from the underflow dilute slurry in carbide generator according to claim 1 or 2 or 3, is characterized in that obtaining after shaking table final election is separated finally entering in tailings pond containing coke granule, the tailings of calcium carbide particle that is wrapped in calcium hydroxide.
5. the method reclaiming silicon iron from the underflow dilute slurry in carbide generator according to claim 3, is characterized in that obtaining after shaking table final election is separated finally entering in tailings pond containing coke granule, the tailings of calcium carbide particle that is wrapped in calcium hydroxide.
6. the method reclaiming silicon iron from the underflow dilute slurry in carbide generator according to claim 1 and 2, is characterized in that the mass percentage concentration of the underflow dilute slurry in carbide generator is 3% to 12%; Or/and obtain silicon iron and be divided into two parts after shaking table final election is separated, the particle diameter of a part is 2mm to 5mm, and the particle diameter of another part is 0.043mm to 2mm; Or/and the vibration frequency of vibratory sieve is 16 hertz to 24 hertz.
7. the method reclaiming silicon iron from the underflow dilute slurry in carbide generator according to claim 3, is characterized in that the mass percentage concentration of the underflow dilute slurry in carbide generator is 3% to 12%; Or/and obtain silicon iron and be divided into two parts after shaking table final election is separated, the particle diameter of a part is 2mm to 5mm, and the particle diameter of another part is 0.043mm to 2mm; Or/and the vibration frequency of vibratory sieve is 16 hertz to 24 hertz.
8. the method reclaiming silicon iron from the underflow dilute slurry in carbide generator according to claim 4, is characterized in that the mass percentage concentration of the underflow dilute slurry in carbide generator is 3% to 12%; Or/and obtain silicon iron and be divided into two parts after shaking table final election is separated, the particle diameter of a part is 2mm to 5mm, and the particle diameter of another part is 0.043mm to 2mm; Or/and the vibration frequency of vibratory sieve is 16 hertz to 24 hertz.
9. the method reclaiming silicon iron from the underflow dilute slurry in carbide generator according to claim 5, is characterized in that the mass percentage concentration of the underflow dilute slurry in carbide generator is 3% to 12%; Or/and obtain silicon iron and be divided into two parts after shaking table final election is separated, the particle diameter of a part is 2mm to 5mm, and the particle diameter of another part is 0.043mm to 2mm; Or/and the vibration frequency of vibratory sieve is 16 hertz to 24 hertz.
10. the method reclaiming silicon iron from the underflow dilute slurry in carbide generator according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8 or 9, it is characterized in that centrifuge is continuous ore discharge type centrifuge, rotating speed is 500 revs/min; Or/and cradle vibrate frequency is 45 hertz to 48 hertz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510473440.3A CN105032603A (en) | 2015-08-05 | 2015-08-05 | Method for recycling ferrosilicon from underflow thin slurry in calcium carbide generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510473440.3A CN105032603A (en) | 2015-08-05 | 2015-08-05 | Method for recycling ferrosilicon from underflow thin slurry in calcium carbide generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105032603A true CN105032603A (en) | 2015-11-11 |
Family
ID=54439914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510473440.3A Pending CN105032603A (en) | 2015-08-05 | 2015-08-05 | Method for recycling ferrosilicon from underflow thin slurry in calcium carbide generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105032603A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6095441A (en) * | 1997-05-09 | 2000-08-01 | Baker Hughes (Deutschland) Gmbh | Process of separating mixed plastic waste into light and heavy plastic phases |
| CN201793529U (en) * | 2009-04-29 | 2011-04-13 | 山东华安新材料有限公司 | Equipment system for ferrosilicon removing technology in acetylene gas generating process |
| CN102091525A (en) * | 2010-12-23 | 2011-06-15 | 浙江天蓝环保技术有限公司 | Device and process for preparing carbide slag desulfurization seriflux from recovered ferro-silicon |
| CN104394993A (en) * | 2013-02-01 | 2015-03-04 | 河北联合大学 | method for pre-treating ilmenite tailings after iron-beneficiation |
-
2015
- 2015-08-05 CN CN201510473440.3A patent/CN105032603A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6095441A (en) * | 1997-05-09 | 2000-08-01 | Baker Hughes (Deutschland) Gmbh | Process of separating mixed plastic waste into light and heavy plastic phases |
| CN201793529U (en) * | 2009-04-29 | 2011-04-13 | 山东华安新材料有限公司 | Equipment system for ferrosilicon removing technology in acetylene gas generating process |
| CN102091525A (en) * | 2010-12-23 | 2011-06-15 | 浙江天蓝环保技术有限公司 | Device and process for preparing carbide slag desulfurization seriflux from recovered ferro-silicon |
| CN104394993A (en) * | 2013-02-01 | 2015-03-04 | 河北联合大学 | method for pre-treating ilmenite tailings after iron-beneficiation |
Non-Patent Citations (1)
| Title |
|---|
| 樊庆霈等: "关于电石渣矽铁回收利用项目在PVC行业应用领域的技术探讨", 《2014年中国氯碱行业环保工作年会》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111659527B (en) | Gasification slag water medium cyclone gravity carbon ash separation device and method | |
| CN106733138B (en) | Fluorite ore gravity-floatation combined mineral dressing technology | |
| CN104004867B (en) | A kind of slag secondary treatment technique of efficient economy | |
| CN203565193U (en) | Multifunctional sandstone mining device | |
| KR100521764B1 (en) | The method to manufacture break to sand by construction waste | |
| CN104722395A (en) | Mixed flocculating agent capable of accelerating settling of superfine grain tailing flocculation and application thereof | |
| CN107352678A (en) | Silt particle recycling technique | |
| CN203764882U (en) | Foundry waste sand recovery system | |
| CN103331206A (en) | Mineral processing method and mineral processing system for improving recovery rate of tungsten in tungsten fine slime | |
| CN104923380A (en) | Novel sand washer | |
| CN106269276A (en) | Beneficiation method for comprehensively recycling low-grade micro-fine particle tantalum-niobium resources and flotation reagent | |
| CN114308375A (en) | A kind of gold tailings resource utilization and harmless disposal method | |
| CN104001370A (en) | Dry discharge technology of tailings | |
| CN103861723B (en) | The method of separation and Extraction microfine tantalum-niobium concentrate | |
| JP2010143797A (en) | Method and system for cleaning limestone | |
| CN105032603A (en) | Method for recycling ferrosilicon from underflow thin slurry in calcium carbide generator | |
| CN114453127A (en) | Copper-tin symbiotic sulphide ore preselection and classification beneficiation method | |
| CN205308610U (en) | High -efficient automatic cycle fine sand recovery unit | |
| CN103263972A (en) | Process of reselecting fine-grained tailings by combining suspension vibration conical surface concentrating machine and table concentrator | |
| CN1714940A (en) | Separation method of mineral elements | |
| CN216880970U (en) | Gasification slag extraction and recycling system | |
| CN101549321A (en) | Bottom slag incineration washing procedure | |
| CN110937835A (en) | Method for resource utilization of waste incineration slag | |
| CN207463454U (en) | A kind of Packed Flotation Columns | |
| CN203944462U (en) | Sea sand zero pollution purifying system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151111 |
|
| RJ01 | Rejection of invention patent application after publication |