CN1096328A - The method of slag granulation and device thereof - Google Patents
The method of slag granulation and device thereof Download PDFInfo
- Publication number
- CN1096328A CN1096328A CN94105396A CN94105396A CN1096328A CN 1096328 A CN1096328 A CN 1096328A CN 94105396 A CN94105396 A CN 94105396A CN 94105396 A CN94105396 A CN 94105396A CN 1096328 A CN1096328 A CN 1096328A
- Authority
- CN
- China
- Prior art keywords
- slag
- baffle plate
- chute
- current
- stream
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002893 slag Substances 0.000 title claims abstract description 72
- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000003179 granulation Effects 0.000 title claims abstract description 16
- 238000005469 granulation Methods 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000002245 particle Substances 0.000 claims abstract description 12
- 238000001816 cooling Methods 0.000 claims abstract description 11
- 239000008187 granular material Substances 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000005266 casting Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 240000006909 Tilia x europaea Species 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 239000003337 fertilizer Substances 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000010413 gardening Methods 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 208000009146 rhinoscleroma Diseases 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B5/00—Treatment of metallurgical slag ; Artificial stone from molten metallurgical slag
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/02—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops
- B01J2/06—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops in a liquid medium
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2400/00—Treatment of slags originating from iron or steel processes
- C21B2400/02—Physical or chemical treatment of slags
- C21B2400/022—Methods of cooling or quenching molten slag
- C21B2400/024—Methods of cooling or quenching molten slag with the direct use of steam or liquid coolants, e.g. water
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2400/00—Treatment of slags originating from iron or steel processes
- C21B2400/05—Apparatus features
- C21B2400/062—Jet nozzles or pressurised fluids for cooling, fragmenting or atomising slag
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2400/00—Treatment of slags originating from iron or steel processes
- C21B2400/05—Apparatus features
- C21B2400/066—Receptacle features where the slag is treated
- C21B2400/072—Tanks to collect the slag, e.g. water tank
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Manufacture Of Iron (AREA)
- Furnace Details (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention relates to a kind of method of slag granulation, comprising: current are parallel to slag stream and flow, thereby form skim.This slag thin layer and current impingement baffles make slag layer be broken into particle, these particles with during water contacts by water cooling and vitreumization.
Description
What the present invention relates to is the method for slag granulation, proposes a kind of granulating device of realizing present method simultaneously.
The slag that forms after treatment in converter from the cast iron of blast furnace is introduced in the casting ladle, and then overturning is in the foundry pit for its setting.
Phosphorated slag (being Thomas slag) can be used for the fertilizer of agricultural or gardening.
In the slag scleroma with after cooling off fully foundry pit is emptied for this reason, subsequently slag is ground, connect they are stored is stored in till the use always.This practice can cause a large amount of distributions that influence the dust of environment.
The rhombohedral iron ore slag, phosphorus content seldom can not be made fertilizer, and it is a kind of unworthy waste material, owing to also contain a large amount of free limes in the slag, and may there be some dangerous element as heavy metal and so on, because the law of restriction industrial waste is more and more stricter, the work that reduce these waste materials is also just more and more difficult again.
The same cost of granulation of the granulation of slag in water and blast-furnace slag is quite expensive.
In fact because the quantity of slag is less relatively, and when casting ladle was toppled over, flow was very big, make the cost height of equipment like this.In view of the increment and the commercial possibility of slag are very little, thereby the granulation problem of slag does not still have effect so far.
Purpose of the present invention proposes one exactly and makes the value-added method of slag.
Realize the method for the object of the invention, it is characterized in that: slag lamellar shape is flowed, slag layer is approximate parallel with general current in flow process, slag layer and current are when colliding an obstacle, slag layer is fractured into thick particle, and these particles contact with water and just are cooled and vitreumization.Present method most important character is that slag stream is approximate parallel with current.Chipping preventing slag stream from contacting with current before arriving baffle plate under the possible situation.Slag stream or slag layer are owing to the impact with obstacle is broken, thus the particle of Xing Chenging be cooled during water contacts and condense.
The main advantages of present method is the slag that has produced vitreumization.The vitreumization of slag makes slag become inertia, has stablized free lime and dangerous element, as heavy metal, they can not produced again reacted, and danger and the danger of slag expansible that these elements are analysed by water logging have just no longer existed.
Can utilize aspect civil engineering work and Road construction through the slag that condenses after the Passivation Treatment.
Another advantage of present method is the danger that it has reduced blast, because the iron-holder of slag is higher relatively, iron may impel the formation of hydrogen in water, just can produce fierce blast when spirt water in slag stream immediately.
Can reduce the possibility of this blast by the method among the present invention, because the flow pattern of slag stream and current is approximately parallel, slag stream is broken after running on the obstacle, and then passes through the rapid cooling of current.
The choose reasonable may command particulate of obstacle forms size, can see when the particle size of formation is big, can reduce the contact surface of water and slag, the particle size that forms is bigger, the coefficient of the area/weight of the slag that contacts with water is just little, and the formation of hydrogen and issuable thus explosion hazard are just littler.
Expense seldom when another advantage of present method was to implement according to this method of the present invention.Because its not to be the water diffluence break slag, the impulse force of current needn't be very big, thereby the size of used water pump and miscellaneous equipment just can dwindle, so it is cheap than the expense of common slag granulation.
The present invention also provides a kind of device of slag granulation simultaneously; it is characterized in that having the chute of a slag; the direction of its spout hole of sprinkler head is approximate parallel with the direction of chute; one in order to dash full from chute slag stream and be positioned at below the baffle plate in order to collect the cooling tank of the slag granules that forms from the baffle plate of the current of sprinkler head and one.
First kind preferably the embodiment sprinkler head be positioned at below the slag chute.
Another kind of embodiment preferably is the steel plate that the most handy high temperature steel of baffle plate is done.This steel plate preferably has a transverse axis, steel plate to rotate around it.Make impact angle and consequent particle size to change like this.
Also having a kind of embodiment preferably is to make the impact zone of baffle plate be hemisphere face or prismatic plane also can be a pyramidal surface.
Baffle plate is subjected to from the flushing of the current of shower nozzle and cooling always.The residue slag that may stick on the baffle plate impact zone just can be removed by the surging force of water spray.
According to another kind embodiment preferably; some porous stones can distribute in cooling tank; lead to into rare gas element as nitrogen; make rare gas element be air bubble-shaped (passing through tank); rare gas element occurs and just can reduce oxygen partial pressure in the granulation district of slag, this practice can reduce the danger of blast.
Method of the present invention and device thereof are specially adapted to the granulation of LD slag, and concerning the expert, this method and apparatus obviously can be applied in the granulation of other melting product.Granulation as electric furnace slag, blast furnace slag and other nonmetallic melting product.
Other characteristics of the present invention and characteristic will be described in detail below in conjunction with the accompanying drawings:
-Fig. 1 represents total figure of granulating device.
-Fig. 2 is the diagram of rotatable baffle plate.
-Fig. 3 represents that the impact zone of baffle plate is hemispheric diagrammatic sketch.
-Fig. 4 represents that impact zone is the baffle plate of a taper.
It is prismatic baffle plate that-Fig. 5 illustrates impact zone.
This device mainly includes the chute 10 of a slag stream 15.Slag is that overturning (there is not expression) in the casting ladle figure in chute 10 in the casting ladle; and pave lamellar; slag stream 15 collides on baffle plate 20 from chute 10 ejection backs; a shower nozzle 25 is arranged below chute 10; direction by the current 30 of spray orifice 26 ejection is similar to parallel with the direction of slag stream; slag layer 15 is by towards broken, form particle before dropping into the cooling tank 35 that is positioned at below the baffle plate 20 by water cooling and vitreumization from granulation shower nozzle 25.
Can see that in Fig. 1 baffle plate 20 has a transverse axis.
Fig. 2 is that the expression baffle plate is how to rotate around the O axle.One of advantage of the rotatable performance of baffle plate 20 be can do not change other parameter, as the situation down conversion impact zone of discharge or slag flow.The mutability of impact zone and impact angle can influence the particulate size that will obtain again.
Fig. 3 represent a baffle plate 20 ', impact zone shape on it is semisphere, the advantage of this implementation method is that the possibility that sticks on the impact zone of slag is little, slag on the plane is easier to be washed out by current than sticking in to stick in slag on the hemisphere face in addition, because the shearing that this situation current produce is bigger.
The impact zone that Fig. 4 introduces baffle plate 20 ", it is tapered 23 that the impact zone above it is done, and the baffle plate 20 that Fig. 5 represents ' " is a pyramid 24.
The method that multiple change shock zone is therefore arranged, these methods can desired according to people (slag) particulate quality, quantity and size are determined.
The diameter that may obtain slag granules by aforesaid method is greater than 3 millimeters, also can realize from 10 millimeters to 15 millimeters particle for diameter.
Claims (10)
1, a kind of slag granulation method; it is characterized in that slag stream paved into one deck lamelliform, be slag in process of flowing with one current be approximately parallel, be slag layer and current when colliding baffle plate it make slag be broken into particle, these particles with during water contacts by water cooling and vitreumization.
2,, it is characterized in that current can cool off and wash baffle plate according to the method for claim 1.
3, require 1 or 2 method according to power, it is characterized in that the particulate size can change according to the variation of the impact angle of slag stream on baffle shapes and the baffle plate.
4, a kind of slag granulation device, it is characterized in that a slag chute (10) is arranged, the direction an of sprinkler head (25), its spray orifice (26) and chute (10) direction is approximate parallel, one can make from the broken baffle plate (20) of the slag stream (15) of chute, one and be positioned at the cooling tank (35) that is split into slag granules below the baffle plate in order to collection.
5,, it is characterized in that sprinkler head (25) is in below the chute (10) according to the device of claim 4.
6, according to each the device in claim 4 or 5, it is characterized in that baffle plate (20) can vertically rotate around the O axle.
7,, it is characterized in that baffle plate (20) ' have a semisphere in impact zone (22) according to each the device in the claim 4 to 6.
8, according to each the device in the claim 4 to 7, it is characterized in that (impact zone of 20 ") is taper (23) to baffle plate.
9, according to each device in the claim 4 to 8, it is characterized in that baffle plate (20 ' ") on a pyramid impact zone (24) is arranged.
10, according to each device in the claim 4 to 9, it is characterized in that laying in the cooling tank porous stone that some can insert rare gas element.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LULU88255 | 1993-05-05 | ||
| LU88255A LU88255A1 (en) | 1993-05-05 | 1993-05-05 | Method and device for granulating slag |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1096328A true CN1096328A (en) | 1994-12-14 |
| CN1038603C CN1038603C (en) | 1998-06-03 |
Family
ID=19731406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94105396A Expired - Fee Related CN1038603C (en) | 1993-05-05 | 1994-04-28 | Method and apparatus for granulation of slags |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1038603C (en) |
| LU (1) | LU88255A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108330237A (en) * | 2017-09-27 | 2018-07-27 | 中能立化科技有限公司 | A kind of slag stream conveying device and slag granulating take hot systems |
| CN113117678A (en) * | 2021-04-07 | 2021-07-16 | 青岛理工大学 | Metallurgical slag granulation-catalyst preparation and modification integrated device system and method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2740097A1 (en) * | 1977-09-06 | 1979-03-08 | Graenges Oxeloesunds Jaernverk | GRANULAR AND METHOD AND DEVICE FOR GRANULATING MELT |
| CN88211276U (en) * | 1988-05-06 | 1988-12-21 | 马鞍山钢铁公司 | Wind power granulating device for steel dross |
-
1993
- 1993-05-05 LU LU88255A patent/LU88255A1/en unknown
-
1994
- 1994-04-28 CN CN94105396A patent/CN1038603C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108330237A (en) * | 2017-09-27 | 2018-07-27 | 中能立化科技有限公司 | A kind of slag stream conveying device and slag granulating take hot systems |
| CN113117678A (en) * | 2021-04-07 | 2021-07-16 | 青岛理工大学 | Metallurgical slag granulation-catalyst preparation and modification integrated device system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1038603C (en) | 1998-06-03 |
| LU88255A1 (en) | 1994-12-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI390025B (en) | Abrasive material made of atomized slag, manufacturing facility and method for the same | |
| EP1234061B1 (en) | Apparatus and process to extract heat and to solidify molten material particles | |
| US3888956A (en) | Method of making granulate | |
| CN102605115B (en) | Process method for producing steel shots by ladle-casting slag pelletization | |
| CN103707204B (en) | A kind of Copper converter smelting slag that utilizes carries out the method for blasting treatment to surface of the work | |
| KR101115772B1 (en) | Apparatus and Method for Treating Slag | |
| CN1038603C (en) | Method and apparatus for granulation of slags | |
| KR19990044448A (en) | Manufacture of metal billets | |
| CA1037720A (en) | Process for producing high-grade metallic products from solid slags and high-grade metallic products | |
| JP4367330B2 (en) | Fused granulator for molten slag | |
| US4152131A (en) | Device for improving expansion of metallurgical slag and cinder before granulation and method for using same | |
| JP4031070B2 (en) | Heavy aggregate | |
| CN211311495U (en) | Extremely fast air cooling treatment device for liquid steel slag | |
| CN1103667A (en) | Air breaking and pelletizing technology and apparatus for slag | |
| KR20020033008A (en) | Method for recovering useful metal from slag generated in steel-making process while treating the slag | |
| EP1222019B1 (en) | Method for separation of a molten mixture | |
| JP3793261B2 (en) | Sharpening material manufacturing method and apparatus | |
| EP1366002B1 (en) | Production of products from steel slags | |
| JP4012344B2 (en) | Method for producing blast furnace slag fine aggregate | |
| CN1097469A (en) | Granulating method and device | |
| JP2004211432A (en) | Regenerated asphalt mixture | |
| EP1152064B1 (en) | Process of granulating converter steel slag by air jetting | |
| USRE30795E (en) | Green balls formed by agglomerating wet-collected fume produced in metallurgical furnaces | |
| SU1662971A1 (en) | Apparatus for granulation of melts | |
| WO1997014760A1 (en) | Method for processing iron-containing materials and products produced thereby |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 19980603 Termination date: 20120428 |