CN104099434A - Dust suppression treatment method for molten iron desulfuration residue and device utilized for method - Google Patents
Dust suppression treatment method for molten iron desulfuration residue and device utilized for method Download PDFInfo
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- CN104099434A CN104099434A CN201410383657.0A CN201410383657A CN104099434A CN 104099434 A CN104099434 A CN 104099434A CN 201410383657 A CN201410383657 A CN 201410383657A CN 104099434 A CN104099434 A CN 104099434A
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- slag
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- ladle
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
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- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The invention discloses a dust suppression treatment method for molten iron desulfuration residue and a water supply device utilized for the method, and belongs to the technical field of metallurgic production. The invention provides a dust suppression treatment method for molten iron desulfuration residue for effectively reducing the probability of dust production in the turnover, transportation, production and digging processes of the high-temperature molten iron desulfuration residue, and a water supply device utilized for the dust suppression treatment method. The dust suppression treatment method comprises the steps of firstly, pushing the high-temperature molten iron desulfuration residue generated in the steelmaking process into a residue tank by use of a crawler loader, secondly, supplying external cooling water into the residue tank by use of the water supply device to cool the high-temperature molten iron desulfuration residue, and finally, carrying out subsequent turnover, transportation, production and digging operations. The water supply device comprises a support structure for fixing the water supply device to the upper edge of the residue tank and a steel nozzle of which the cooling water injection end faces the middle part of the residue tank; the steel nozzle is fixed on the support structure.
Description
Technical field
The present invention relates to a kind of dust suppression treatment process, especially relate to a kind of dust suppression treatment process for desulfurizing slag of hot metal, belong to metallurgical production technical field.The invention still further relates to a kind of dispensing device for water for described dust suppression treatment process.
Background technology
Along with modern industry is produced and scientific and technical developing rapidly, the requirement of steel product quality is improved day by day.For example, for fear of steel billet, produce internal fissure and obtain good surface quality, requiring the sulphur content of ordinary steel to be less than 0.020%.Requiring the steel of low-sulfur like this, adopt traditional blast furnace ironmaking---converter steelmaking process is what be difficult to produce, only before steel-making, adds and adds that furnace outer refining process could realize this purpose after molten iron pre-desulfurization operation, steel-making.Molten iron pre-desulfurization has become one of indispensable operation of optimizing metallurgical production technique, and the lime consumption amount of minimizing steel-making and the quantity of slag etc., thereby reduces production costs.
Desulfurization is two separate hot metal pretreatment technology processes that are closely connected again with skimming, the former has determined processing terminal sulfur content of hot metal, and the latter is the important means that the high-sulfur waste residue after desulfurization is processed is removed from molten iron, it is the principal element determining into stove sulphur total amount.The a large amount of waste residues that produce swim in molten iron surface, and too much waste residue affects ladleful, and the sulphur in waste residue has the possibility of getting back in molten iron, will pull out with slag removal machine the scum silica frost on molten iron surface for this reason.
These are skimmed and are grilled in slag ladle, then are transported to slag field and turn over and abandon processing.Skim to turn over to abandon and in pit, easily form " mushroom cloud ", in the cooling and efflorescence of implementing to fetch water, turn over slag, dig slag, in production and transportation, dust pollution is caused in capital, powder surface is very easily subject to the impact of natural wind, cause big area airborne dust, when serious, the internal contamination of slag field is serious, to surrounding environment, causes great impact., because airborne dust causes powder, run off meanwhile, brought many financial losses.Along with to the understanding of the harm of dust and dustproof social benefit and environmental benefit today more and more widely, along with the raising that national environmental protection requires, imperative to slag field Dust Improvement.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of can effectively reduce high temperature liquid iron desulfurization slag turn over abandon, transport, produce and dig slag process in produce the dust suppression treatment process for desulfurizing slag of hot metal of dust probability.The present invention also provides a kind of dispensing device for water for described dust suppression treatment process.
For solving the problems of the technologies described above adopted technical scheme, be: a kind of dust suppression treatment process for desulfurizing slag of hot metal, comprise the following steps,
A, clear up slag ladle and make dispensing device for water, the capacity that cleaning is made by heat-resisting steels is not less than the unlimited slag ladle of 10t and top, meanwhile makes for the high temperature liquid iron desulfurization slag of splendid attire in described slag ladle and beats water-cooled dispensing device for water;
B, collect high temperature liquid iron desulfurization slag, the high temperature liquid iron desulfurization slag that adopts slag removal machine that smelting process is produced is grilled into during described slag fills with, meanwhile, and by described dispensing device for water and outside water coolant hydraulic pipe connection;
C, the cooling down high-temperature desulfurizing slag of hot metal of fetching water, described dispensing device for water is fixed on the upper limb of described slag ladle, and make the water jet of described dispensing device for water towards the middle part of described slag ladle, open the stopping valve on exterior cooling water hydraulic pipe, by described dispensing device for water to the cold water of squeezing into that is contained in high temperature liquid iron desulfurization slag in described slag ladle and continues low discharge, until the temperature of described high temperature liquid iron desulfurization slag lower than 50 ℃, has so just completed the dust suppression work for the treatment of of the described desulfurizing slag of hot metal of batch.
Further, in step a, clear up and the capacity of the described slag ladle that uses is 35t.
Further, above the high temperature liquid iron desulfurization slag packing in described slag ladle in step b than low at least 10 ㎝ of the upper limb of described slag ladle.
Further, in step c to holding the time of fetching water of continuing in described slag ladle at 23～25h.
Further, in step a, when the described slag ladle of cleaning, reveal clearly slag car or slag ladle seat, the slag ladle of taking off full high temperature liquid iron desulfurization slag by described slag removal machine is by described slag car or slag ladle seat supports and be transported to cooling zone simultaneously.
Dispensing device for water for above-mentioned dust suppression treatment process, described dispensing device for water comprises supporting structure and is arranged on the steel shower nozzle in described supporting structure, described dispensing device for water is fixed on the upper limb of described slag ladle by described supporting structure, described dispensing device for water is connected by the water coolant input terminus of described steel shower nozzle and outside water coolant hydraulic pipe, and the water coolant ejection end of described steel shower nozzle is towards the middle part of described slag ladle.
Be further, described supporting structure consists of the steelframe that is F type, described steel shower nozzle is arranged in described supporting structure along the vertical edge of the described supporting structure of F type, and the water coolant of described steel shower nozzle ejection end extends along the upper horizontal sides of the described supporting structure of F type; The described supporting structure of F type is articulated on the upper limb of described slag ladle by its lower horizontal sides.
The invention has the beneficial effects as follows: adopt above-mentionedly first the high temperature liquid iron desulfurization slag producing in steelmaking process to be grilled in slag ladle by slag removal machine, and then by dispensing device for water, outside water coolant is squeezed into and in described slag ladle, described high temperature liquid iron desulfurization slag carried out coolingly, carry out again afterwards turning over slag, transportation, producing and dig the work such as slag of postorder.Due to after described high temperature liquid iron desulfurization slag takes off out from steel melting furnace, first carried out fetching water cooling, both reduced the temperature of described high temperature liquid iron desulfurization slag, increased again the degree of adhesion between desulfurization slag powder, thereby make tiny single desulfurization slag connect into relatively large desulfurization slag group, like this, the slag that turns at postorder, transportation, produce and dig in the process of slag, just can because of the weight of single tiny desulfurization slag, not kick the beam and produce a large amount of dust, having realized dustlessization of high temperature liquid iron desulfurization slag processes, reduced after high temperature liquid iron desulfurization slag claws STEELMAKING PRODUCTION line and in various continuous production work programs, produced the probability of dust.
Accompanying drawing explanation
Fig. 1 is the dispensing device for water the present invention relates to and the structural representation coordinating with slag ladle thereof.
In figure, be labeled as: slag ladle 1, high temperature liquid iron desulfurization slag 2, dispensing device for water 3, upper limb 4, slag car or slag ladle seat 5, supporting structure 6, steel shower nozzle 7.
Embodiment
Be as shown in Figure 1 provided by the invention a kind of can effectively reduce high temperature liquid iron desulfurization slag turn over abandon, transport, produce and dig slag process in produce the dust suppression treatment process for desulfurizing slag of hot metal of dust probability, and for the dispensing device for water of this dust suppression treatment process.Described dust suppression treatment process comprises the following steps,
A, clear up slag ladle and make dispensing device for water, the capacity that cleaning is made by heat-resisting steels is not less than the unlimited slag ladle 1 of 10t and top, meanwhile makes for the 2 dozens of water-cooled dispensing device for waters 3 of high temperature liquid iron desulfurization slag to described slag ladle 1 interior splendid attire; ;
B, collect high temperature liquid iron desulfurization slag, the high temperature liquid iron desulfurization slag 2 that adopts slag removal machine that smelting process is produced is grilled into described slag and fills with in 1, meanwhile, described dispensing device for water 3 and outside water coolant hydraulic pipe is connected;
C, the cooling down high-temperature desulfurizing slag of hot metal of fetching water, described dispensing device for water 3 is fixed on the upper limb 4 of described slag ladle 1, and make the water jet of described dispensing device for water 3 towards the middle part of described slag ladle 1, open the stopping valve on exterior cooling water hydraulic pipe, by described dispensing device for water 3 to the cold water of squeezing into that is contained in high temperature liquid iron desulfurization slag in described slag ladle 12 and continues low discharges, until the temperature of described high temperature liquid iron desulfurization slag 2 lower than 50 ℃, has so just completed the dust suppression work for the treatment of of the described desulfurizing slag of hot metal of batch.
Described dispensing device for water comprises supporting structure 6 and is arranged on the steel shower nozzle 7 in described supporting structure 6, described dispensing device for water 3 is fixed on the upper limb 4 of described slag ladle 1 by described supporting structure 6, described dispensing device for water 3 is connected by the water coolant input terminus of described steel shower nozzle 7 and outside water coolant hydraulic pipe, and the water coolant ejection end of described steel shower nozzle 7 is towards the middle part of described slag ladle 1.
Adopt and above-mentionedly first the high temperature liquid iron desulfurization slag 2 producing in steelmaking process is grilled in slag ladle 1 by slag removal machine, and then by dispensing device for water 3, outside water coolant is squeezed into and in described slag ladle 1, described high temperature liquid iron desulfurization slag 2 carried out coolingly, carry out again afterwards turning over slag, transportation, producing and dig the work such as slag of postorder.Due to after described high temperature liquid iron desulfurization slag 2 takes off out from steel melting furnace, first carried out fetching water cooling, both reduced the temperature of described high temperature liquid iron desulfurization slag 2, increased again the degree of adhesion between desulfurization slag powder, thereby make tiny single desulfurization slag connect into relatively large desulfurization slag group, like this, the slag that turns at postorder, transportation, produce and dig in the process of slag, just can because of the weight of single tiny desulfurization slag, not kick the beam and produce a large amount of dust, having realized dustlessization of high temperature liquid iron desulfurization slag 2 processes, reduced after high temperature liquid iron desulfurization slag 2 claws STEELMAKING PRODUCTION line and in various continuous production work programs, produced the probability of dust.
In above-mentioned embodiment, in conjunction with enterprise's condition of production, in order to reduce production cost and the running cost of dust suppression treatment process described in the application, can meet to greatest extent production requirement again, in step a, clear up and the capacity of the described slag ladle 1 that uses is 35t simultaneously; Above the high temperature liquid iron desulfurization slag 2 packing in described slag ladle 1 in step b than low at least 10 ㎝ of the upper limb of described slag ladle 14; In step c to holding the time of fetching water of continuing in described slag ladle 1 at 23～25h.And in order to facilitate the operation of described dust suppression treatment process, not only in step a, when the slag ladle 1 described in cleaning, pay off simultaneously and reveal slag car or slag ladle seat 5, the slag ladle 1 of taking off full high temperature liquid iron desulfurization slag 2 by described slag removal machine supports and is transported to cooling zone by described slag car or slag ladle seat 5; And, described supporting structure 6 consists of the steelframe that is F type, described steel shower nozzle 7 is arranged in described supporting structure 6 along the vertical edge of the described supporting structure 6 of F type, and the water coolant of described steel shower nozzle 7 ejection end extends along the upper horizontal sides of the described supporting structure 6 of F type; The described supporting structure 6 of F type is articulated on the upper limb 4 of described slag ladle 1 by its lower horizontal sides.Like this, both facilitate the operation of fetching water, reduced producers' labour intensity, and meanwhile, can reduce again the usage quantity of water coolant, reduced the running cost of the application's method.
Claims (7)
1. for a dust suppression treatment process for desulfurizing slag of hot metal, it is characterized in that: comprise the following steps,
A, clear up slag ladle and make dispensing device for water, the capacity that cleaning is made by heat-resisting steels is not less than the unlimited slag ladle (1) of 10t and top, meanwhile makes for beating water-cooled dispensing device for water (3) to the high temperature liquid iron desulfurization slag (2) of the interior splendid attire of described slag ladle (1);
B, collect high temperature liquid iron desulfurization slag, the high temperature liquid iron desulfurization slag (2) that adopts slag removal machine that smelting process is produced is grilled into described slag and fills with in (1), meanwhile, described dispensing device for water (3) and outside water coolant hydraulic pipe is connected;
C, the cooling down high-temperature desulfurizing slag of hot metal of fetching water, described dispensing device for water (3) is fixed on the upper limb (4) of described slag ladle (1), and make the water jet of described dispensing device for water (3) towards the middle part of described slag ladle (1), open the stopping valve on exterior cooling water hydraulic pipe, by described dispensing device for water (3) to the cold water of squeezing into that is contained in high temperature liquid iron desulfurization slag (2) in described slag ladle (1) and continues low discharge, until the temperature of described high temperature liquid iron desulfurization slag (2) lower than 50 ℃, has so just completed the dust suppression work for the treatment of of the described desulfurizing slag of hot metal of batch.
2. the dust suppression treatment process for desulfurizing slag of hot metal according to claim 1, is characterized in that: in step a, clear up and the capacity of the described slag ladle (1) that uses is 35t.
3. the dust suppression treatment process for desulfurizing slag of hot metal according to claim 1, is characterized in that: above the high temperature liquid iron desulfurization slag (2) packing in described slag ladle (1) in step b than low at least 10 ㎝ of the upper limb of described slag ladle (1) (4).
4. the dust suppression treatment process for desulfurizing slag of hot metal according to claim 1, is characterized in that: in step c to holding the time of fetching water of continuing in described slag ladle (1) at 23～25h.
5. the dust suppression treatment process for desulfurizing slag of hot metal according to claim 1, it is characterized in that: in step a, when the slag ladle (1) described in cleaning, reveal clearly slag car or slag ladle seat (5), the slag ladle (1) of taking off full high temperature liquid iron desulfurization slag (2) by described slag removal machine supports and is transported to cooling zone by described slag car or slag ladle seat (5) simultaneously.
6. for the dispensing device for water of dust suppression treatment process described in claim 1, it is characterized in that: described dispensing device for water (3) comprises supporting structure (6) and is arranged on the steel shower nozzle (7) in described supporting structure (6), described dispensing device for water (3) is fixed on the upper limb (4) of described slag ladle (1) by described supporting structure (6), described dispensing device for water (3) is connected by the water coolant input terminus of described steel shower nozzle (7) and outside water coolant hydraulic pipe, and the water coolant ejection end of described steel shower nozzle (7) is towards the middle part of described slag ladle (1).
7. dispensing device for water according to claim 6, it is characterized in that: described supporting structure (6) consists of the steelframe that is F type, described steel shower nozzle (7) is arranged in described supporting structure (6) above along the vertical edge of the described supporting structure (6) of F type, and the water coolant of described steel shower nozzle (7) ejection end extends along the upper horizontal sides of the described supporting structure (6) of F type; The described supporting structure (6) of F type is articulated on the upper limb (4) of described slag ladle (1) by its lower horizontal sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410383657.0A CN104099434A (en) | 2014-08-06 | 2014-08-06 | Dust suppression treatment method for molten iron desulfuration residue and device utilized for method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410383657.0A CN104099434A (en) | 2014-08-06 | 2014-08-06 | Dust suppression treatment method for molten iron desulfuration residue and device utilized for method |
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| CN104099434A true CN104099434A (en) | 2014-10-15 |
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| CN201410383657.0A Pending CN104099434A (en) | 2014-08-06 | 2014-08-06 | Dust suppression treatment method for molten iron desulfuration residue and device utilized for method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105603137A (en) * | 2016-01-11 | 2016-05-25 | 广东华欣环保科技有限公司 | Dripping and pulverizing control device and dripping and pulverizing treatment method for steelmaking reducing slag |
| CN112266992A (en) * | 2020-10-12 | 2021-01-26 | 张家港宏昌钢板有限公司 | Desulphurization slag treatment device and application thereof |
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| CN102304593A (en) * | 2011-09-14 | 2012-01-04 | 山西太钢不锈钢股份有限公司 | Water cooling method for molten iron pretreatment slag |
| CN103031392A (en) * | 2012-02-14 | 2013-04-10 | 新疆八一钢铁股份有限公司 | Process for performing innocent treatment on KR desulfuration residue |
| CN202968571U (en) * | 2012-12-15 | 2013-06-05 | 武钢集团昆明钢铁股份有限公司 | Self-adaptation positioning water spraying device of molten iron desulfuration slag pot |
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2014
- 2014-08-06 CN CN201410383657.0A patent/CN104099434A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102304593A (en) * | 2011-09-14 | 2012-01-04 | 山西太钢不锈钢股份有限公司 | Water cooling method for molten iron pretreatment slag |
| CN103031392A (en) * | 2012-02-14 | 2013-04-10 | 新疆八一钢铁股份有限公司 | Process for performing innocent treatment on KR desulfuration residue |
| CN202968571U (en) * | 2012-12-15 | 2013-06-05 | 武钢集团昆明钢铁股份有限公司 | Self-adaptation positioning water spraying device of molten iron desulfuration slag pot |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105603137A (en) * | 2016-01-11 | 2016-05-25 | 广东华欣环保科技有限公司 | Dripping and pulverizing control device and dripping and pulverizing treatment method for steelmaking reducing slag |
| CN112266992A (en) * | 2020-10-12 | 2021-01-26 | 张家港宏昌钢板有限公司 | Desulphurization slag treatment device and application thereof |
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