CN204224623U - The specific equipment of iron content slag upgrading - Google Patents
The specific equipment of iron content slag upgrading Download PDFInfo
- Publication number
- CN204224623U CN204224623U CN201420355733.2U CN201420355733U CN204224623U CN 204224623 U CN204224623 U CN 204224623U CN 201420355733 U CN201420355733 U CN 201420355733U CN 204224623 U CN204224623 U CN 204224623U
- Authority
- CN
- China
- Prior art keywords
- furnace
- slag
- coal
- upgrading
- specific equipment
- 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.)
- Expired - Lifetime
Links
- 239000002893 slag Substances 0.000 title claims abstract description 63
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 12
- 238000007664 blowing Methods 0.000 claims abstract description 16
- 239000000203 mixture Substances 0.000 claims abstract description 15
- 238000005507 spraying Methods 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 10
- 239000007921 spray Substances 0.000 claims abstract description 5
- 241001125879 Gobio Species 0.000 claims description 7
- 239000000779 smoke Substances 0.000 claims description 4
- 238000012360 testing method Methods 0.000 claims description 4
- 238000013461 design Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000002817 coal dust Substances 0.000 abstract description 16
- 238000000034 method Methods 0.000 abstract description 15
- 239000003795 chemical substances by application Substances 0.000 abstract description 14
- 238000012986 modification Methods 0.000 abstract description 12
- 230000004048 modification Effects 0.000 abstract description 12
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 230000002829 reductive effect Effects 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 5
- 238000003723 Smelting Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 3
- 238000010304 firing Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000010310 metallurgical process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013077 target material Substances 0.000 description 1
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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
Landscapes
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The utility model discloses a kind of specific equipment of iron content slag upgrading, comprise upgrading furnace body and blowing device; Described upgrading furnace body comprises furnace bottom, furnace bosh, furnace roof three part; Wherein, at the bottom of furnace bosh, slightly higher position place is two symmetrical coal-fired swirl nozzles, two coal-fired swirl nozzle symmetries enter burner hearth along furnace wall tangential direction, coal-fired eddy flow spray is connected with blowing device; Described coal dust and modification agent blowing device are by gas feed, and jet gun, pan feeding flowrate control valve, feed bin, spraying gun, the outlet of material, gas mixture, bin blanking mouth and jet gun nozzle form.The utility model adopts two coal-fired swirl nozzles of symmetry to enter burner hearth along furnace wall tangential direction, and modification agent is heated into molten state, easily mixes with molten state slag.Slag after upgrading can be directly used in prepares high value added product, avoids the simple, extensive of existing Slag treatment Land use systems form, and carries out to cold slag the high energy consumption that reflow process causes.
Description
Technical field
The utility model relates to the upgrading facility of metallurgical cinder, particularly relates to the specific equipment of the upgrading of the iron content slag produced in the smelting process of metal, belongs to the upgrading facility field of iron content slag.
Background technology
In the smelting process of current black and non-ferrous metal, create a large amount of high-temperature molten-state slags, these slags formed by smelting the gangue etc. be mingled with in the slag former or ore that need deliberately to add, and its main component is SiO
2, CaO, MgO, Al
2o
3, FeO, Fe
2o
3deng oxide compound, due to these oxide compounds and the fusing point of complex compound that forms all higher, the temperature of the slag of therefore discharging in metallurgical process is general all higher than 1500 DEG C, and be at present all almost for cold conditions slag to the processing and utilizing of these slags, and the mode utilized is also fairly simple, extensive, a part is produced cement, non-burning brick, to pave the way the material of construction such as aggregate, a part turns back to again in smelting procedure after simple process, also have and utilize owing to being processed greatly and be landfilled, heap is abandoned, therefore there is utilization ratio lower, deficiency in economic performance, environmental pollution seriously waits series of problems.
Simultaneously due to the temperature of slag is higher and its hot melt comparatively large thus it has contained huge heat energy, although carried out large quantifier elimination to the recycling of slag heat both at home and abroad, but also mainly concentrate on by physics heat exchange or the single way of recycling of chemical energy mode, nearly all because equipment is complicated, operation cost is high, heat energy recovery rate and economic benefit is low etc. that problem causes realizing large-scale industrialization.
In a word, at present following problem is existed to the utilization of slag:
(1) be all utilize separately for " slag " and " heat " to the utilization of slag, finally cause that utilization ratio is low, deficiency in economic performance etc.
(2) utilizing in process because the composition of slag is difficult to satisfy the demand slag, a part is utilized by modified under cold conditions, therefore need to carry out broken abrasive dust to slag, especially for the slag that hardness is larger, this technological process efficiency is very low, energy consumption is higher, and the added value of product prepared is general all lower.And the slag of the overwhelming majority is because the composition requirements difference of its composition and target material is comparatively large or cannot realize under cold conditions modifiedly causing it to go out of use.
(3) heat of slag is almost all wasted, even if adopt current a certain technique to reclaim certain heat energy, but also needs to pay very high cost.And sometimes in order to utilize slag also to need to reheat fusing to cold slag, greatly improving and utilizing cost.
In order to effectively utilize slag, need to carry out upgrading to slag; Which kind of at present, have much room for improvement to mainly facing following problem in molten state slag upgrading processes: the 1. type of heating of melting materials capable: because modification agent is that thus cold burden needs heating to be melted in upgrading processes, thus select type of heating then extremely important.2. the feed postition of modification agent: because the viscosity of molten state slag is comparatively large, and the decline of viscosity with temperature can increase rapidly, will make slag quick solidification if therefore directly joined in molten state slag by cold burden, then melted then very difficult, cost is very high.3. the blending manner of molten state slag and modification agent: if molten state slag directly mixes with solid-state modification agent, be difficult to reach even, and modification agent can be covered in slag surface, slag is crusted.
Utility model content
Technical problem to be solved in the utility model overcomes the deficiencies in the prior art, provides a kind of specific equipment of upgrading of iron content slag.
A specific equipment for the upgrading of iron content slag, comprising: upgrading furnace body and blowing device; Described upgrading furnace body comprises furnace bottom, furnace bosh, furnace roof three part; Furnace bottom both sides symmetric design two gudgeons, by gudgeon by furnace bottom stand on chassis; Furnace roof leaves a flue in its side, leaves a vision slit at an upper portion thereof, devises a circulating water smoke test pipe at stack base; Wherein, at the bottom of furnace bosh, slightly higher position place is two symmetrical coal-fired swirl nozzles, two coal-fired swirl nozzle symmetries enter burner hearth along furnace wall tangential direction, coal-fired eddy flow spray is connected with blowing device; When coal dust is in burner hearth combustion, its combustion flame will become eddy flow at freeze profile and slowly rise along furnace wall, can extend the residence time of high-temperature gas in stove, and then enhance the heat utilization rate of coal dust firing.
Wherein, between furnace bosh and furnace bottom, preferably adopt Flange joint, facilitate furnace bosh to separate with furnace bottom, reductive agent is joined in slag, slag is reduced.
Furnace waist height its be 2 times of furnace bottom height, relatively long furnace bosh is conducive to extending the residence time of high-temperature flue gas in stove; Furnace roof height is less, is 1/2 of furnace bottom substantially.
Described coal dust and modification agent blowing device by gas feed, jet gun, pan feeding flowrate control valve, feed bin, spraying gun, material, gas mixture outlet, bin blanking mouth, jet gun nozzle form; Wherein jet gun is positioned at the inside of spraying gun, and the front of jet gun nozzle is material, gas mixture outlet, and feed bin is connected by feed opening with spraying gun; Feed opening is positioned at the back upper place of jet gun nozzle; Pan feeding flowrate control valve is arranged in bin blanking mouth.
The utility model adopts two coal-fired swirl nozzles of symmetry to enter burner hearth along furnace wall tangential direction, its combustion flame will become eddy flow at freeze profile and slowly rise along furnace wall modification agent will be heated into molten state, easily mix with molten state slag, the modification agent of liquid molten state carries a large amount of heats simultaneously, realizes the concurrent heating to molten state slag.Slag after upgrading can be directly used in prepares high value added product, avoid the simple, extensive of existing Slag treatment Land use systems form, and the high energy consumption that reflow process causes is carried out to cold slag, therefore, it is possible to realize pair utilization to " slag " and " heat " of slag, have the advantages that Land use systems variation, utilization ratio are high, good in economic efficiency, low in the pollution of the environment.
Accompanying drawing explanation
Fig. 1 upgrading furnace body schematic diagram;
Illustrate: 1-molten bath, 2-furnace bottom, 3-furnace bosh, 4-furnace roof, 5-vision slit, 6-flue, 7-smoke test pipe, 8-cooling water intake, 9-eddy flow spout, 10-gudgeon, 11-chassis, 12-refractory materials.
Fig. 2 furnace bosh place eddy flow coal-fired nozzle throat area schematic diagram;
Illustrate: 9-eddy flow spout, the coal-fired nozzle of 13-eddy flow, 14-furnace wall.
Fig. 3 coal dust and modification agent blowing device schematic diagram;
Illustrate: 15-gas feed, 16-jet gun, 17-pan feeding flowrate control valve, 18-feed bin, 19-spraying gun, the outlet of 20-material, gas mixture, 21-bin blanking mouth, 22-jet gun nozzle.
Fig. 4 molten steel slag modifying process schema.
Embodiment
Further describe the utility model below in conjunction with specific embodiment, advantage and disadvantage of the present utility model will be more clear along with description.But these embodiments are only exemplary, do not form any restriction to scope of the present utility model.It will be understood by those skilled in the art that and do not departing under spirit and scope of the present utility model and can modify to details of the present utility model and form or replace, but these amendments and replacement all fall in protection domain of the present utility model.
Fig. 1 is upgrading furnace body schematic diagram; Fig. 2 furnace bosh place eddy flow coal-fired nozzle throat area schematic diagram; Fig. 3 is coal dust and modification agent blowing device schematic diagram; Below in conjunction with Fig. 1-3, structure of the present utility model and technique effect are described further.
The utility model specific equipment comprises upgrading furnace body and blowing device; Described upgrading furnace body comprises furnace bottom (2), furnace bosh (3), furnace roof (4) three part; Adopt Flange joint between furnace bosh (3) and furnace bottom (2), facilitate furnace bosh to separate with furnace bottom, reductive agent is joined in slag, slag is reduced; Highly it is 2 times of furnace bottom (2) height to furnace bosh (3), and relatively long furnace bosh is conducive to extending the residence time of high-temperature flue gas in stove; Furnace roof (4) is the half of furnace bottom (2) height.Furnace bottom both sides symmetric design two gudgeons (10), by gudgeon (10) by furnace bottom (2) stand on chassis (11); Furnace roof (4) leaves a flue (6) in its side, leaves a vision slit (5) at an upper portion thereof, devises a circulating water smoke test pipe (7) at stack base; It is characterized in that: at furnace bosh (3) end, slightly higher position place is two symmetrical coal-fired swirl nozzles (13), what two coal-fired swirl nozzles (13) were symmetrical enters burner hearth along furnace wall (14) tangential direction, and coal-fired eddy flow spray 13 is connected with blowing device; Described blowing device is by gas feed (15), jet gun (16), pan feeding flowrate control valve (17), feed bin (18), spraying gun (19), material, gas mixture outlet (20), bin blanking mouth (21), jet gun nozzle (22) form; Wherein, jet gun (16) is positioned at the inside of spraying gun (19), the front of jet gun nozzle (22) is material, gas mixture outlet (20), and feed bin (18) is connected by feed opening (21) with spraying gun (19); Feed opening (21) is positioned at the back upper place of jet gun nozzle; Pan feeding flowrate control valve (17) is arranged in bin blanking mouth (21).When coal dust is in burner hearth combustion, its combustion flame will become eddy flow at freeze profile and slowly rise along furnace wall, can extend the residence time of high-temperature gas in stove, and then enhance the heat utilization rate of coal dust firing.
Whole modifying process flow process as shown in Figure 4, before fusing slag micro powder, first in furnace bottom (2), put into a certain amount of timber and light, then promoting chassis (11) is placed in immediately below furnace bosh (3) by furnace bottom (2), and by furnace bosh (3) below on furnace bottom (2), and furnace bosh (3) and furnace bottom (2) are linked by flange with bolt, at this moment opening oxygen flow valve makes the timber in furnace bottom (2) be fully burned, and fire box temperature is reached can firing coal-dust.At furnace bosh (3) end, slightly higher position place is two symmetrical coal-fired swirl nozzles (13), what two coal-fired swirl nozzles (13) were symmetrical enters burner hearth along furnace wall (14) tangential direction, and coal-fired eddy flow spray 13 is connected with blowing device.In feed bin (18), add pure coal dust continue preheating burner hearth, being mixed to join in feed bin (18) by slag and coal dust after about 5min, starts to melt slag.After the mixture of slag and coal dust is jetted and terminated, continue pulverized coal injection ash, with the mixture of coal dust, the basicity of molten state slag is adjusted to 1.1.Lift furnace bosh (3) after blowing bundle to be painted, in slag, add the coal dust of 2.4Kg and stir with iron staff.Then put down the pure coal dust that furnace bosh (3) continues the about 5min of winding-up, the iron in slag is reduced fully.The mixture finally continuing pulverized coal injection ash and coal dust makes the adjustment basicity of slag be 0.7, lifts furnace bosh (3) and chassis (11) will be pulled to be hauled out by body of heater, stir slag make its composition reach even with iron staff after winding-up terminates.Then rotate gudgeon (10) slag is poured in pond carries out shrend, after being dried by the frit after shrend, select with magnet the metal iron block be wherein reduced out.
Claims (6)
1. a specific equipment for iron content slag upgrading, comprises upgrading furnace body and blowing device; Described upgrading furnace body comprises furnace bottom (2), furnace bosh (3), furnace roof (4) three part; Furnace bottom both sides symmetric design two gudgeons (10), by gudgeon (10) by furnace bottom (2) stand on chassis (11); Furnace roof (4) leaves a flue (6) in its side, leaves a vision slit (5) at an upper portion thereof, devises a circulating water smoke test pipe (7) at stack base; It is characterized in that: at furnace bosh (3) end, slightly higher position place is two symmetrical coal-fired swirl nozzles (13), what two coal-fired swirl nozzles (13) were symmetrical enters burner hearth along furnace wall (14) tangential direction, and coal-fired eddy flow spray 13 is connected with blowing device.
2. according to specific equipment according to claim 1, it is characterized in that: described blowing device is by gas feed (15), jet gun (16), pan feeding flowrate control valve (17), feed bin (18), spraying gun (19), material, gas mixture outlet (20), bin blanking mouth (21), jet gun nozzle (22) form.
3. according to specific equipment according to claim 2, it is characterized in that: jet gun (16) is positioned at the inside of spraying gun (19), the front of jet gun nozzle (22) is material, gas mixture outlet (20), and feed bin (18) is connected by feed opening (21) with spraying gun (19); Feed opening (21) is positioned at the back upper place of jet gun nozzle; Pan feeding flowrate control valve (17) is arranged in bin blanking mouth (21).
4. according to specific equipment according to claim 1, it is characterized in that: between furnace bosh (3) and furnace bottom (2), adopt Flange joint.
5. according to specific equipment according to claim 1, it is characterized in that: highly it is 2 times of furnace bottom (2) height to furnace bosh (3).
6. according to specific equipment according to claim 1, it is characterized in that: furnace roof (4) is the half of furnace bottom (2) height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420355733.2U CN204224623U (en) | 2014-06-30 | 2014-06-30 | The specific equipment of iron content slag upgrading |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420355733.2U CN204224623U (en) | 2014-06-30 | 2014-06-30 | The specific equipment of iron content slag upgrading |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204224623U true CN204224623U (en) | 2015-03-25 |
Family
ID=52922741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420355733.2U Expired - Lifetime CN204224623U (en) | 2014-06-30 | 2014-06-30 | The specific equipment of iron content slag upgrading |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204224623U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141019A (en) * | 2014-06-30 | 2014-11-12 | 大唐国际发电股份有限公司高铝煤炭资源开发利用研发中心 | Modification method of iron-containing slag and special equipment for modification method |
-
2014
- 2014-06-30 CN CN201420355733.2U patent/CN204224623U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141019A (en) * | 2014-06-30 | 2014-11-12 | 大唐国际发电股份有限公司高铝煤炭资源开发利用研发中心 | Modification method of iron-containing slag and special equipment for modification method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104131122B (en) | A kind of iron-smelting process based on winding-up coal gas of high temperature | |
| CN103397129B (en) | A kind of melting reduction iron-making furnace and iron-smelting process thereof | |
| CN106086275B (en) | A kind of combustion gas with blowing device is molten to divide stove and carries out the method for metallurgy with it | |
| CN101348842B (en) | Oxygen top blown smelting reduction iron manufacturing process | |
| CN102409124A (en) | Continued ironmaking device based on melting reduction | |
| CN104357650B (en) | A kind of bath smelting quickly makes molten bath method | |
| CN106086289A (en) | A kind of top blow oxygen lance is used to dust the method for making steel of smelting stainless steel mother liquid and device | |
| CN112080645A (en) | Method and device for recovering zinc oxide and iron from zinc-containing soot | |
| CN104498656B (en) | The method directly utilizing fine ore fused reduction iron-smelting | |
| CN103834752B (en) | Thermal-state slag online modification device | |
| CN106119449A (en) | A kind of blast furnace whole world group smelting process | |
| CN201417073Y (en) | Natural gas hot air furnace gas purification cupola furnace | |
| CN204224623U (en) | The specific equipment of iron content slag upgrading | |
| CN105506299A (en) | Low-grade secondary lead smelting slag fuming furnace treatment system and method | |
| CN104141019B (en) | Modification method of iron-containing slag and special equipment for modification method | |
| CN203904422U (en) | Top blowing type round smelting furnace | |
| CN103382526A (en) | Direct lead-smelting reducing furnace gas-injection method and device thereof | |
| CN203810892U (en) | Coal-oxygen blowing melting separation shaft furnace | |
| CN101565767A (en) | Method for melting reduction iron making | |
| CN201463594U (en) | Combined spray gun used for iron making by smelting reduction | |
| CN204438754U (en) | Rotary kiln Secondary Air oxygen enrichment pulse-combustion air jet system | |
| CN203794916U (en) | Online quality modification device of hot state molten slag | |
| CN204625746U (en) | Adopt the device of winding-up shaft furnace production ferronickel water | |
| CN205907282U (en) | Gas melting furnace with jetting device | |
| CN203820824U (en) | Drying and reduction integrated flash ironmaking equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150325 |