CN1924029A - Heat static state desulfurizer in molten metal and desulfurization method - Google Patents
Heat static state desulfurizer in molten metal and desulfurization method Download PDFInfo
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- CN1924029A CN1924029A CN 200610094751 CN200610094751A CN1924029A CN 1924029 A CN1924029 A CN 1924029A CN 200610094751 CN200610094751 CN 200610094751 CN 200610094751 A CN200610094751 A CN 200610094751A CN 1924029 A CN1924029 A CN 1924029A
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Abstract
The invention discloses a heat static desulfurizer and desulfurizing method in the metal liquid, which comprises the following steps: making kinds of desulfurizing material into desulfurizer, dephosphorization agent, balling agent and inoculant; draining in the heating furnace or steel water or ferric water or sulfur dioxide in the waste gas flow or sulphur in the steel water.
Description
The present invention relates to heat static state desulfurizer and sulfur method in a kind of molten metal, be applicable to all process furnace, perhaps oil engine, perhaps hot desulfurization in molten steel or the molten iron, perhaps nodularization, perhaps dephosphorization perhaps breeds.Product, perhaps method is " in take off " mark.This be several have identical, be equal to, corresponding particular technology characteristic, the invention concurrent application of same inventive concept.
The invention belongs to one and divide an application, former name of patent application: new desulfurizing technique for clean combustion.Number of patent application: 02102956.3, the applying date: on September 19th, 2002.
Existing desulfurization, dephosphorization, nodularization, art of inoculation, perhaps method is a lot, and the cost that has is too high, and the desulfurization degree that has is too low, contaminate environment, poor product quality.
Purpose of the present invention is exactly in order to overcome the deficiency of above-mentioned prior art, xeothermic static state desulfurizer and sulfur method in a kind of molten metal to be provided, can eliminate the contaminate environment of sulphur, can guaranteeing the stable of quality product again.
The present invention is achieved in that a sweetening agent, perhaps nodulizing agent, perhaps dephosphorizing agent, perhaps the material of nucleating agent is made the same block shape, bar-shaped shape, the sweetening agent of granular shape, perhaps nodulizing agent, perhaps dephosphorizing agent, perhaps nucleating agent sinks to, perhaps insert in the molten steel, perhaps in the molten iron voluntarily the reaction get final product.Desulfurizing purifier is exactly a kind of device of system position sweetening agent, perhaps container, and the various sweetening agents in brandreth system position, the flow velocity of restriction waste gas, just can rational Application.Can be in xeothermic property static application in the hot waste gas stream; Static application in molten steel, molten iron; In solid-state, soak and use, the upper position of desulfurizing purifier in different bodies of heater, the left and right sides, front and back position, arrange in six orientation, orientation up and down, perhaps build the position of special-purpose desulfurization chamber because of the selected desulfurization of stove suiting measures to different conditions, go into 900-100 ℃ of section in the floss hole place behind heating chamber or the molten bath, the framework desulfurizing purifier is housed, and is that multilayer is being arranged the pass sweetening agent in the framework desulfurizing purifier, perhaps square rod shape sweetening agent, blocky thickness 0.02-0.1m, there are the strip hole that arrangement in length and breadth penetrates, perhaps square hole, perhaps circular hole in the two sides on the piece, the volume size of framework is to determine with the size of burner hearth, perhaps with ladle, the size of hot metal ladle is determined the framework volume size, and club or framework belong to proximate unitized construction, desulfurizing purifier together, must be to burn flue dust with coal-fired cleaner fully at limited range at coal-fired furnace cavity, in the stage casing of heating chamber, perhaps afterbody is used for oil oven, perhaps gas furnace equally with desulfurizing purifier then; Desulfurizing purifier is exactly block, bar-shaped alkali material, perhaps the sweetening agent of alkali compound is contained in a kind of utensil or the inner surface of container of circle, square body, rectangular parallelepiped has one deck refractory materials, what perhaps refractory brick was netted is fixed on a kind of utensil, takes off with sulphur under certain conditions.Club porous shape sweetening agent is that arranged vertical holding on the desulfurizing purifier, and fireproofing agent is arranged in the nodulizing agent.
Xeothermic static state desulfurizer and sulfur method in the molten metal are the sweetening agents of various sweetening materials being made different shape, dephosphorizing agent, nodulizing agent, and nucleating agent is emitted in the process furnace, perhaps in molten steel or the molten iron.The sulphur of taking off in the exhaust flow reduces contaminate environment, and perhaps the reduction of the sulphur in molten steel product cost is low, improves the quality of products the protection environment.
The stone or metal plate for standing a stove on as a precaution against fire list desulfurizing purifier parts of embodiment 1, coking furnace, gas furnace or gas furnace, gas furnace desulfurizing purifier are installed in the ingress of gas pipe line in the stove.The thermophore parts of coke oven in each partition wall quirk all are replaced by all roasting kilns of sweetening agent parts, and 900-500 ℃ flue section is established the installation site of coal-fired cleaner, desulfurizing purifier, desulfurizing purifier.The sweetening agent of removal sulfur dioxide is mainly used pane, and perhaps T38 type T39 type hole block carries out desulfurization in the exhaust flow layer by layer.Various industrial furnaces, every zone that can reach the hot-fluid state range more than 800 ℃ is frame cylinder iron, perhaps stainless steel screen frame, the various sweetening agent pieces of dress collection are not perhaps limit the big or small calcium oxide piece of shape.Take off molten steel, the sulphur in the molten iron, nodularization molten iron, dephosphorization is the club sweetening agent of usefulness mainly, solid metal desulfurization pulvis.
Embodiment 2, molten steel, desulfurization insulation in the molten iron, required supplying heat source Coal powder spray machine size is with the molten steel of containing in the ladle, what determine molten iron, there is a heat supply guard shield a bag mouthful top, a vertical stirrer, general desulfurization coupling to be that a kind of general downside advances coal automatically vertical, the perhaps horizontal double-deck twin-stage pulverizer and the miniature Coal powder spray machine of blower fan one, size Coal powder spray machine, blower fan is divided into up and down to half-open product, interior side plate is that two semicircles are to adorning, quartering hammer is a T type structure, the convex cone that perhaps intersects is worn the broken coal dust of empty rotation, the top of automatic coal inlet, the limit coal amount plate that one oscilaltion is arranged, the band negative pressure flue dust Coal powder spray machine that strile-backs has 0.1-0.2KW, 0.3-0.4KW, 0.5-1.5KW, 2-3KW, 5-10KW, 10-15KW, return heater combination or negative pressure under the duster of 15-20KW reaches and give the coal dust heat supply.It is a corresponding desulfurization specific equipment.
The position of embodiment 3, desulfurizing purifier is all in the rear end of coal-fired cleaner, perhaps, the perhaps orientation up and down of the outer any side of stove, perhaps below ground, the stage casing of going into floss hole of heating chamber, perhaps rear to waste gas overflows into the zone that mouthful stack extension root forms the static removal sulfur dioxide of xeothermic property.High temperature furnace used calcium oxide more than 1000 ℃, perhaps useless charing calcium powder.Moderate oven below 800 ℃ is with yellow soda ash and salt, the cold zone sodium hydroxide below 200 ℃, perhaps gun cover goods.This desulfurization zone is bigger, desulfurizing purifier all can be installed in the scope more than 100 ℃ below 900 ℃ carry out desulfurization.The useless powder of calcium oxide, carbon dust, carbide of calcium, yellow soda ash, fluorite powder, magnesium oxide, lime carbonate, sodium-chlor, zinc, aluminium, magnesium, rare earth magnesium desulfurization in gaseous state are that the sweetening agent with all size is contained in the difform coal-fired cleaner of coupling in the desulfurizing purifier of different size and finishes dedusting in the fire coal, desulfurization.Desulfurizing purifier has three kinds, the size of container, container, shape are selected with stove: 1, metal products lattice 2, fire resistive material product 3, refractory materials and metallic combination goods, discrete, perhaps horizontal two kinds, the specification shape of sweetening agent, as long as block type or any block type of clavate type, rectangular build are arranged in the container that exhaust flow passes through, the block size of three kinds of block shape sweetening agents is selected with body of heater internal furnace size, and 0.001m is arranged
3, 0.008m
3, 0.03m
3, 0.06m
3, 0.08m
3, 0.1m3,0.2m
3, 0.3m
3, 0.5m
3, having in the desulfurizing purifier is that perpendicular horizontal multilayer is arranged, and what desulfurization was used in the exhaust flow is the sweetening agent of block shape, and block shape sweetening agent has Fang Tizhuan or the block T3 type of rectangular parallelepiped, T38 type, T39 type.
Embodiment 4, in take off the various sweetening agents of board the prescription consumption all be not less than 10%, the sweetening agent of polyvoltine compound is contained in and carries out the effective of desulfurization in the desulfurizing purifier, allocating of doing what is suitable to the occasion uses these several sweetening agents that good practicality is just arranged, and can not limit the ratio of a certain desulfurization formulation, participates in, spray into burner hearth in perhaps spraying in the coal, quirk, heating chamber desulfurization in the incendiary process, perhaps at heating object, the end of hot work zone to chimney root section sprays into sweetening agent, with calcium oxide 40%, magnesium oxide 10%, useless carbide of calcium 40%, sodium carbide 10%, fluorite powder 10%, sodium-chlor 10%, produce magnesium waste residue 40%, rare earth 1 ‰, lime carbonate 1%, sodium hydroxide 10%, magnesium 1%, the composition ratio in the sweetening agent does not limit, what of each proportioning components, see sulfur-bearing what determine that the consumption of various sweetening agents all can increase to 50%.Make 1-3,3-5, the 5-15mm spheroid form, be contained in desulfurization in the desulfurizing purifier with netted interlayer, perhaps make the block shape of honeycomb, perhaps cylinder porous hollow bulk, perhaps semicircle shape, perhaps semicylinder porous hollow bulk, perhaps square porous hollow bulk, perhaps capitulate sweetening agent, be contained in that counterpart is opened or anfractuose indulging, horizontal perpendicular layers every desulfurizing purifier in desulfurization, perhaps use calcium oxide, the carbide of calcium powder that gives up, the 100% collection of heap of stone desulfurization in desulfurization chamber of rare earth alloy slag, every large-scale coal furnace is in the end of heating chamber is gone into the floss hole section, 900-1100 ℃ waste heat is arranged, all can build a calcining compartment.The consumption of zinc, aluminium, magnesium, rare earth at 0.3-1.0,1.0-2% in the molten steel molten iron.Make bulk, perhaps square porous hollow bulk, perhaps capitulate sweetening agent, be contained in opening, perhaps anfractuose longitudinal and transverse perpendicular layers every desulfurizing purifier in desulfurization, perhaps use calcium oxide, perhaps the useless powder 100% of carbide of calcium sprays into burner hearth, perhaps collection of heap of stone desulfurization in desulfurization chamber.Every large-scale coal furnace in the end of heating chamber is gone into the floss hole section, has 900-1100 ℃ waste heat, all can build a combustion chamber, and the size of various calcining compartments is to determine with the size of waste heat.Minimum 0.5m
3, to very much not limitting.This calcining compartment is also named clarifying smoke chamber, desulfurizing and purifying chamber, just calcine in the calcining compartment of alkaline matter can desulfurization again can dedusting, at least also can dedusting in the calcining compartment of calcining nonbasic substances.Various desulfurizing purifiers are placed on the static desulfurization of xeothermic property that is in operation of the rear end of the rear end of coal-fired cleaner or heating chamber or chimney root.The position difference that desulfurizing purifier is placed, the composition of sweetening agent, shape, unitized construction are also different.The sweetening agent product is " in take off " mark.
Embodiment 5, in take off board club circle, perhaps square shape sweetening agent, perhaps nodulizing agent, perhaps dephosphorizing agent, specification size are with the size of stove, perhaps molten steel, ladle size are determined.Rectangular parallelepiped club sweetening agent, perhaps club combination devulcanizer inserts in the converter, in the electric furnace, in the ladle, in the hot metal ladle, reach the cupola well of various smelting furnaces in the forehearth in cupola furnace, perhaps in the bath, zincification in the preformulation, magnesium, aluminium and multiple metal are used for molten steel, molten iron, in the copper water, deoxidation degasification reductive combination devulcanizer is at the flute profile clamp, and many taper holes pressing plate is holding, and perhaps single excellent straight cutting is gone into desulfurization, perhaps nodularization, perhaps wriggling perhaps breeds, perhaps dephosphorization, devulcanizer is built-in to be the slag iron core, the iron cover, iron frame club shape sweetening agent, the slag iron core, iron cover, perhaps paper cover, iron frame club shape nodulizing agent, slag iron core iron cover, iron frame club shape vermiculizer, the frustum section, perhaps iron square, perhaps cylindrical iron section, perhaps iron ball foreskin nucleating agent, location at the bottom of the hot metal ladle, the slag iron core, the iron cover, iron frame club shape dephosphorizing agent, the length of club sweetening agent is according to stove, perhaps Bao the degree of depth is determined.Cone, perhaps square clavate type desulfurization, perhaps nodulizing agent, perhaps dephosphorizing agent during rig-site utilization, earlier will above-mentioned five doses be put into respectively at the bottom of the ladle, and perhaps at the bottom of the hot metal ladle, perhaps at molten steel, perhaps directly insertion in the molten iron can both reach effect same.The mechanical force size that the system position is five doses, with molten steel, perhaps how many molten iron is determined.
Embodiment 6, in take off the board sweetening agent, the section magnesium of perhaps using in the nodulizing agent, perhaps magnesium grain, one deck water-resisting agent, coke powder in its appearance, lime, alkali is made the clavate type sweetening agent, perhaps changes agent, perhaps take off excellent sweetening agent, perhaps club combination desulfurization is inserted in the converter, in the interior ladle of electric furnace, perhaps in the hot metal ladle, perhaps reach the cupola well of various smelting furnaces in the forehearth of iron furnace, perhaps in the bath, the club straight cutting goes into to carry out desulfurization, and the length of club sweetening agent is according to stove, perhaps Bao the degree of depth is determined, general section is 0.02-0.63,0.03-0.05,0.06-0.07,0.08-01,0.15-0.2,0.3-0.4 pole, perhaps square rod shape sweetening agent, club shape sweetening agent upper end dop position-limiting part section, the last end section of club sweetening agent is a square plug that turns, square turning is to be inserted in side's cover of system position device, uses wedge, perhaps takes the chucking set, use the hydraulic lifting structure, perhaps screw rod screws in, perhaps the pulley counterweight is inserted molten iron, perhaps molten steel.
Claims (10)
1, heat static state desulfurizer and the sulfur method in a kind of molten metal comprises all process furnace, perhaps oil engine, perhaps in the molten steel, perhaps desulfurization in the molten iron is characterized in that, in the molten steel in the smelting stove, in the perhaps various molten metals, perhaps in the molten steel in the ladle, perhaps desulfurization in the molten iron in the hot metal ladle, perhaps nodularization, perhaps dephosphorization, the material that perhaps breeds, shape are identical, sweetening agent, perhaps desulfurization nodulizing agent, perhaps desulfurization nucleating agent, the perhaps shape of the dephosphorizing agent section of being joint shape all; Technological operation all is the method that sinks to, perhaps interpolation realizes desulfurization in molten steel behind the static reaction, perhaps nodularization, perhaps pregnant effect; Product, perhaps method is " in take off " printed words mark.
2, heat static state desulfurizer and the sulfur method in a kind of molten metal, comprise all process furnace, perhaps oil engine is perhaps in the molten steel, perhaps desulfurization in the molten iron, it is characterized in that, in take off the various sweetening agents of board the prescription consumption all be not less than 10%, the sweetening agent of polyvoltine compound is contained in and carries out the effective of desulfurization in the desulfurizing purifier, allocating of doing what is suitable to the occasion uses these several sweetening agents that good practicality is just arranged, can not limit the ratio of a certain desulfurization formulation, participate in, perhaps spray in the coal in and the separation of flow; Perhaps useless charcoal calcium powder is sprayed into burner hearth, quirk, heating chamber desulfurization in the incendiary process, perhaps at heating object, the end of hot work zone to chimney root section sprays into sweetening agent, with calcium oxide 40%, magnesium oxide 10%, useless carbide of calcium 40%, sodium carbide 10%, fluorite powder 10%, sodium-chlor 10%, produce magnesium waste residue 40%, rare earth 1 ‰, lime carbonate 1%, sodium hydroxide 10%, magnesium 1%, composition ratio in the sweetening agent does not limit, what of each proportioning components, see sulfur-bearing what determine, the consumption of various sweetening agents all can increase to 50%, powdered iron ore 50%; Perhaps single separation of flow agent 100% single application.
3, according to heat static state desulfurizer and sulfur method in the described molten metal of claim 1-2, it is characterized in that, the prescription consumption of various sweetening agents all more than 10% to 50%, the size of various sweetening material consumptions is by in the molten steel, perhaps the sulfur-bearing height is down true in the molten iron, one component material prescription consumption reaches 100%, takes off sulfurous gas in the exhaust flow in process furnace.
4, heat static state desulfurizer and the sulfur method in a kind of molten metal comprises all process furnace, perhaps oil engine, perhaps oil engine, perhaps in the molten steel, perhaps desulfurization in the molten iron, it is characterized in that, ladle, perhaps ladle desulfurisation needs insulation, required thermal source is the Coal powder spray machine of wind autofeed, the size of duster is with the molten steel of containing in the ladle, and perhaps how many molten iron determines that the duster minimum is 1-2KW, 5-10KW, 15-20KW.
5, heat static state desulfurizer and the sulfur method in a kind of molten metal is characterized in that, the stay-warm case of a loud-speaker shape is arranged on the ladle mouth, coal dust from the cover side opening spray into sweetening agent lifting saddle be a unitized construction.
6, heat static state desulfurizer and the sulfur method in a kind of molten metal is characterized in that, club shape sweetening agent, perhaps in the club shape desulfurization nodulizing agent slag iron core is arranged, gabarit is the iron sheet cover, perhaps paper cover, and the appearance of section joint shape desulfurization nucleating agent is an iron-clad graphite.
7, heat static state desulfurizer and the sulfur method in a kind of molten metal is characterized in that, uses above-mentioned composition, and shape, method be at molten steel, perhaps desulfurization in the molten iron.
8, heat static state desulfurizer and the sulfur method in a kind of molten metal is characterized in that, uses above-mentioned composition, and shape, method be at molten steel, perhaps desulfurization in the molten iron, nodularization in molten iron, perhaps wriggling.
9, heat static state desulfurizer and the sulfur method in a kind of molten metal is characterized in that, uses above-mentioned composition, and shape, method be at molten steel, perhaps dephosphorization in the molten iron.
10, heat static state desulfurizer and the sulfur method in a kind of molten metal is characterized in that, uses above-mentioned composition, and shape, method breed in molten iron.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021029563A CN100396992C (en) | 2002-09-19 | 2002-09-19 | Desulfurizing technique for clean combustion |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021029563A Division CN100396992C (en) | 2002-09-19 | 2002-09-19 | Desulfurizing technique for clean combustion |
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| Publication Number | Publication Date |
|---|---|
| CN1924029A true CN1924029A (en) | 2007-03-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021029563A Expired - Fee Related CN100396992C (en) | 2002-09-19 | 2002-09-19 | Desulfurizing technique for clean combustion |
| CN 200610094751 Pending CN1924029A (en) | 2002-09-19 | 2002-09-19 | Heat static state desulfurizer in molten metal and desulfurization method |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB021029563A Expired - Fee Related CN100396992C (en) | 2002-09-19 | 2002-09-19 | Desulfurizing technique for clean combustion |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115652024A (en) * | 2022-12-08 | 2023-01-31 | 北京科技大学 | Method for efficiently removing Cu in electric furnace steelmaking process of recycled steel raw material |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108380024B (en) * | 2018-04-13 | 2024-01-09 | 中冶焦耐(大连)工程技术有限公司 | Desulfurizing and dedusting integrated cylinder heating furnace system and desulfurizing and dedusting method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0628340B1 (en) * | 1990-11-28 | 1996-10-30 | Mitsubishi Jukogyo Kabushiki Kaisha | Method for desulfurizing exhaust gas |
| CN1073507A (en) * | 1991-12-19 | 1993-06-23 | 清华大学 | A kind of pulverized-coal fired boiler desulfurizing combustion that is used for |
| CN2254146Y (en) * | 1996-05-30 | 1997-05-14 | 赵锋 | Multifunctional non-pressure boiler without chimney |
| CN1113682C (en) * | 2000-01-05 | 2003-07-09 | 浙江大学 | Two-segment desulfurizing method for high-temp combustion |
| CN1259286C (en) * | 2000-06-02 | 2006-06-14 | 赵善茂 | Complex utilization method for coal burning boiler smoke and ash slag |
-
2002
- 2002-09-19 CN CNB021029563A patent/CN100396992C/en not_active Expired - Fee Related
- 2002-09-19 CN CN 200610094751 patent/CN1924029A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115652024A (en) * | 2022-12-08 | 2023-01-31 | 北京科技大学 | Method for efficiently removing Cu in electric furnace steelmaking process of recycled steel raw material |
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| Publication number | Publication date |
|---|---|
| CN1397764A (en) | 2003-02-19 |
| CN100396992C (en) | 2008-06-25 |
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Application publication date: 20070307 |