CN107696240A - A kind of comprehensive utilization of steel slags - Google Patents
A kind of comprehensive utilization of steel slags Download PDFInfo
- Publication number
- CN107696240A CN107696240A CN201710864698.5A CN201710864698A CN107696240A CN 107696240 A CN107696240 A CN 107696240A CN 201710864698 A CN201710864698 A CN 201710864698A CN 107696240 A CN107696240 A CN 107696240A
- Authority
- CN
- China
- Prior art keywords
- slag
- comprehensive utilization
- steel slags
- iron
- holder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/20—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/20—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded
- B28B3/26—Extrusion dies
Abstract
The invention belongs to industrial solid castoff field of comprehensive utilization, more particularly to a kind of comprehensive utilization of steel slags.The comprehensive utilization of steel slags comprises the following steps：Step 1：By discarded slag crushing；Step 2：Magnetic separation is carried out to the slag after broken, selects the dregs of slag of the iron-holder higher than 40% and iron-holder less than 40%；Step 3：By dregs of the iron-holder less than 40% with additive according to 80~90:After 10~20 mass ratio is well mixed, compression molding；Step 4：Slag of the iron-holder higher than 40% is used to smelt.Comprehensive utilization of steel slags of the present invention, according to break process and magnetic separation, will can continue to smelt constituents extraction coming out in slag, for can not Smelting Part, by adding other additives, prepare imitated wood floor board；This method greatly improves the utilization rate of slag, slag is fully used, while improves added value of product, has important economy, society and ecological, environmental protective meaning.
Description
Technical field
The invention belongs to industrial solid castoff field of comprehensive utilization, more particularly to a kind of comprehensive utilization of steel slags.
Background technology
Slag is one kind of China's industrial solid castoff melting waste slag, and annual report is comprehensively utilized according to Chinese Resources
(2014) shown in, 2013, about 4.16 hundred million tons of China's steel industry melting waste slag yield, wherein 2.41 hundred million tons of blast furnace slag,
1.01 hundred million tons of slag, 59,600,000 tons of ion dust mud contaning, 13,900,000 tons of ferroalloy slag.
2013, China's metallurgical slag volume of comprehensive utilization was 2.28 hundred million tons, comprehensive utilization ratio 67%, increases by 6% on a year-on-year basis.Its
Middle blast furnace slag comprehensive utilization ratio is 82%, increases by 4% on a year-on-year basis, slag comprehensive utilization rate is 30%, increases by 8% on a year-on-year basis.Steel row
Industry melting waste slag is currently used primarily in cement, concrete admixture, roadbed material and steel slag brick, water-permeable brick, non-burning brick, building block etc.
The production of various building materials.
The discharge of huge slag can cause serious environmental pollution and harm.First, the stacking of slag can take largely
Valuable land resource.Because part steel slag particle is tiny, it is easy to form dust raising phenomenon, cause dust pollution, human body is good for
Health produces harm.In addition, slag after rainwater leaching, can also mix the soil near flowing into, river etc. with water, cause serious
Environmental pollution.The pollution of slag how is reduced, slag is turned waste into wealth, promotes the efficient circulation of slag to make full use of, is one
The problem of meriting attention.
Wood plastic composite is a kind of composite board material for being surging forward in recent years both at home and abroad, its by by plastics and
Sheet material shape through hot extrusion molding after wooden powder mixes by a certain percentage.Because its performance relative to common wood materials more
It is excellent, therefore it is widely used in the industries such as building materials, furniture, logistics packaging.
The content of the invention
(1) technical problems to be solved
The technical problem to be solved in the present invention is to provide a kind of comprehensive utilization of steel slags, to realize that the recycling of slag is comprehensive
Close and utilize.
(2) technical scheme
In order to solve the above-mentioned technical problem, the invention provides a kind of comprehensive utilization of steel slags, it comprises the following steps：
Step 1：By discarded slag crushing；
Step 2：Magnetic separation is carried out to the slag after broken, slag of the iron-holder higher than 40% is selected and iron-holder is less than
40% dregs；
Step 3：By dregs of the iron-holder less than 40% with additive according to 80~90:10~20 mass ratio mixes
After closing uniformly, compression molding；
Step 4：Slag of the iron-holder higher than 40% is used to smelt.
Further, the broken equipment used of the step 1 is jaw crusher.
Further, the equipment that the magnetic separation of the step 2 uses is dry-type magnetic extractor.
Further, in step 3, after the compression molding, floor base material plate is obtained, then by the floor base material plate
Imitated wood floor board is made.
Further, compression molding described in step 3 is carried out under conditions of 110~130 DEG C.
Further, the step 3 is specially：By dregs and additive of the iron-holder less than 40% according to 80~
90:10~20 mass ratio mixing, is stirred, dries and is granulated successively, will be granulated gained compound intensively panel moulding apparatus
Extrusion molding under conditions of inherent 110~130 DEG C, the floor base material plate of solid type is made.
Further, by the floor base material plate successively through supercooling, Length-fixing cutting, plug-hole, reconditioning, channeling, mortise, thin
Mill, scrub, thermal transfer, UV processing and hardened artiwear processing, are made imitated wood floor board；Also further the imitated wood floor board can be examined
Survey and pack, with finished product.
Further, the imitated wood floor board includes outward appearance layer, priming paint protective layer, skid resistant course and wearing layer successively.Wherein, institute
The pattern for stating outward appearance layer is to handle what is obtained by foregoing thermal transfer, pattern never drop-off.Compared with conventional wooden floor, institute
It is more preferable to state the wear-resisting of imitated wood floor board, fire protecting performance.
Further, in step 3, the additive is by polyvinyl chloride, paraffin, stearic acid, barium stearate, compound steady
Determine the mixture of agent and polyamino modified silicon oil composition.
Further, the additive is by polyvinyl chloride, paraffin, stearic acid, barium stearate, compound stabilizer and more ammonia
Base modified silicon oil is according to 50~70:10~30：5~10：5~10：5~10：The mixture of 5~10 mass ratio composition.
(3) beneficial effect
The above-mentioned technical proposal of the present invention has the advantages that：Comprehensive utilization of steel slags of the present invention, root
According to break process and magnetic separation, will can continue to smelt constituents extraction coming out in slag, for can not Smelting Part, by adding other
Additive, prepare imitated wood floor board；With it, greatly improve the utilization rate of discarded slag so that discarded slag obtains
Make full use of, while improve the added value of product utilization, there is important economy, society and ecological, environmental protective meaning.
Brief description of the drawings
Fig. 1 is the flow chart of comprehensive utilization of steel slags described in the embodiment of the present invention 1.
Embodiment
Embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples.Following examples are used for
Illustrate the present invention, but can not be used for limiting the scope of the present invention.
Slag is discarded used in following embodiments and comes from Beijing Capital Iron and Steel；Following embodiment additive therefors are commercially available business
Product.
Embodiment 1
A kind of comprehensive utilization of steel slags is present embodiments provided, referring to Fig. 1, it comprises the following steps：
Step 1：Using jaw crusher by discarded slag crushing；
Step 2：Magnetic separation is carried out to the slag after crushing using dry-type magnetic extractor, selects the slag that iron-holder is higher than 40%
It is less than 40% dregs with iron-holder；
Step 3：By dregs of the iron-holder less than 40% with additive according to 80:20 mass ratio mixing, is stirred successively
Mix, dry and be granulated, the gained compound intensively extrusion molding under conditions of 110 DEG C in panel moulding apparatus will be granulated, reality is made
The floor base material plate of cardioid；By gained floor base material plate successively through supercooling, Length-fixing cutting, plug-hole, reconditioning, channeling, mortise, thin
Mill, scrub, thermal transfer, UV processing and hardened artiwear processing, are made imitated wood floor board；And further the imitated wood floor board is detected
And packaging, with finished product；
Step 4：Slag of the iron-holder higher than 40% is delivered to steel plant, continues to smelt.
In the present embodiment, additive is by paraffin, stearic acid, barium stearate, compound stabilizer and polyamino modified silicon oil
According to polyvinyl chloride, paraffin, stearic acid, barium stearate, compound stabilizer and polyamino modified silicon oil according to 50：30：8：5：6：5
Mass ratio composition mixture.Imitated wood floor board includes outward appearance layer, priming paint protective layer, skid resistant course and wearing layer successively；Wherein, outside
The pattern for seeing layer is to handle what is obtained by foregoing thermal transfer, pattern never drop-off.
Embodiment 2
A kind of comprehensive utilization of steel slags is present embodiments provided, it comprises the following steps：
Step 1：Using jaw crusher by discarded slag crushing；
Step 2：Magnetic separation is carried out to the slag after crushing using dry-type magnetic extractor, selects the slag that iron-holder is higher than 40%
It is less than 40% dregs with iron-holder；
Step 3：By dregs of the iron-holder less than 40% with additive according to 87：13 mass ratio mixing, is stirred successively
Mix, dry and be granulated, the gained compound intensively extrusion molding under conditions of 125 DEG C in panel moulding apparatus will be granulated, reality is made
The floor base material plate of cardioid；By gained floor base material plate successively through supercooling, Length-fixing cutting, plug-hole, reconditioning, channeling, mortise, thin
Mill, scrub, thermal transfer, UV processing and hardened artiwear processing, are made imitated wood floor board；And further the imitated wood floor board is detected
And packaging, with finished product；
Step 4：Slag of the iron-holder higher than 40% is delivered to steel plant, continues to smelt.
In the present embodiment, additive is by polyvinyl chloride, paraffin, stearic acid, barium stearate, compound stabilizer and polyamino
Modified silicon oil is according to 67:15：5：9：10：The mixture of 7 mass ratio composition.Imitated wood floor board includes outward appearance layer successively, priming paint is protected
Sheath, skid resistant course and wearing layer；Wherein, the pattern of outward appearance layer is to handle what is obtained by foregoing thermal transfer, and pattern never takes off
Fall.
Test example
With reference to GB/T 24508-2009 Wood-plastic floor standard and GB 6566-2010 radioactive material radionuclides limitations
Performance detection is made to imitated wood floor board made from Examples 1 and 2, learns following performance parameter：
In summary, the comprehensive utilization of steel slags of above-described embodiment, according to break process and magnetic separation, by can be after in slag
Continuous constituents extraction of smelting comes out, for can not Smelting Part, by adding other additives, prepare imitated wood floor board；Pass through the party
Method, greatly improving the utilization rate of slag so that slag is fully used, while improves the added value of product utilization,
With important economy, society and ecological, environmental protective meaning.It is the anti-folding of obtained imitated wood floor board, shock resistance, wear-resisting, scratch-resistant, anti-
Jelly, fire prevention and radiation proof etc. are functional.
Embodiments of the invention provide for the sake of example and description, and are not exhaustively or by this to send out
It is bright to be limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Choosing
Select and describe embodiment and be to more preferably illustrate the principle and practical application of the present invention, and make one of ordinary skill in the art
It will be appreciated that the present invention is so as to designing the various embodiments with various modifications suitable for special-purpose.
Claims (10)
1. a kind of comprehensive utilization of steel slags, it is characterised in that comprise the following steps：
Step 1：By discarded slag crushing；
Step 2：Magnetic separation is carried out to the slag after broken, slag of the iron-holder higher than 40% is selected and iron-holder is less than 40%
Dregs；
Step 3：By dregs of the iron-holder less than 40% with additive according to 80~90:10~20 mass ratio mixing is equal
After even, compression molding；
Step 4：Slag of the iron-holder higher than 40% is used to smelt.
2. comprehensive utilization of steel slags according to claim 1, it is characterised in that the broken use of the step 1 is set
Standby is jaw crusher.
3. comprehensive utilization of steel slags according to claim 1, it is characterised in that what the magnetic separation of the step 2 used sets
Standby is dry-type magnetic extractor.
4. comprehensive utilization of steel slags according to claim 1, it is characterised in that in step 3, through the compression molding
Afterwards, floor base material plate is obtained, then imitated wood floor board is made in the floor base material plate.
5. comprehensive utilization of steel slags according to claim 1, it is characterised in that compression molding is 110 described in step 3
Carried out under conditions of~130 DEG C.
6. comprehensive utilization of steel slags according to claim 1, it is characterised in that the step 3 is specially：By described in
Dregs of the iron-holder less than 40% is with additive according to 80~90:10~20 mass ratio mixing, be stirred successively, dry and
It is granulated, the gained compound intensively extrusion molding under conditions of 110~130 DEG C in panel moulding apparatus will be granulated, solid type is made
Floor base material plate.
7. comprehensive utilization of steel slags according to claim 6, it is characterised in that pass through the floor base material plate successively
Cooling, Length-fixing cutting, plug-hole, reconditioning, channeling, mortise, fine grinding, scrub, thermal transfer, UV processing and hardened artiwear processing, are made
Imitated wood floor board.
8. comprehensive utilization of steel slags according to claim 6, it is characterised in that the imitated wood floor board includes outward appearance successively
Layer, priming paint protective layer, skid resistant course and wearing layer.
9. comprehensive utilization of steel slags according to claim 1, it is characterised in that in step 3, the additive is served as reasons
The mixture that polyvinyl chloride, paraffin, stearic acid, barium stearate, compound stabilizer and polyamino modified silicon oil form.
10. comprehensive utilization of steel slags according to claim 9, it is characterised in that the additive be by polyvinyl chloride,
Paraffin, stearic acid, barium stearate, compound stabilizer and polyamino modified silicon oil are according to 50~70:10~30：5~10：5~10：
5~10：The mixture of 5~10 mass ratio composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710864698.5A CN107696240A (en) | 2017-09-22 | 2017-09-22 | A kind of comprehensive utilization of steel slags |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710864698.5A CN107696240A (en) | 2017-09-22 | 2017-09-22 | A kind of comprehensive utilization of steel slags |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107696240A true CN107696240A (en) | 2018-02-16 |
Family
ID=61171882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710864698.5A Pending CN107696240A (en) | 2017-09-22 | 2017-09-22 | A kind of comprehensive utilization of steel slags |
Country Status (1)
| Country | Link |
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| CN (1) | CN107696240A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114231735A (en) * | 2021-12-01 | 2022-03-25 | 攀枝花钢城集团有限公司 | Method for maintaining furnace based on smelting secondary resources |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101342512A (en) * | 2007-07-12 | 2009-01-14 | 南京板桥钢渣有限责任公司 | Steel scoria processing method |
| KR20110050257A (en) * | 2009-11-06 | 2011-05-13 | (주)자연과이야기 | Environmentally friendly materials used dirt roads and dirt roads which the composition and coating method |
| CN103936336A (en) * | 2014-03-25 | 2014-07-23 | 北京大学 | Method for preparing wood-like floor by utilizing fly ash |
| CN105153731A (en) * | 2015-10-08 | 2015-12-16 | 北京大学 | Imitation wood floor and preparation method thereof |
| CN107118509A (en) * | 2017-05-27 | 2017-09-01 | 贵州大学 | Tea saponin modification converter slag and its composite floor board being made with waste or used plastics |
| CN107159426A (en) * | 2017-04-27 | 2017-09-15 | 酒泉钢铁(集团)有限责任公司 | A kind of slag is secondary to select iron method |
-
2017
- 2017-09-22 CN CN201710864698.5A patent/CN107696240A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101342512A (en) * | 2007-07-12 | 2009-01-14 | 南京板桥钢渣有限责任公司 | Steel scoria processing method |
| KR20110050257A (en) * | 2009-11-06 | 2011-05-13 | (주)자연과이야기 | Environmentally friendly materials used dirt roads and dirt roads which the composition and coating method |
| CN103936336A (en) * | 2014-03-25 | 2014-07-23 | 北京大学 | Method for preparing wood-like floor by utilizing fly ash |
| CN105153731A (en) * | 2015-10-08 | 2015-12-16 | 北京大学 | Imitation wood floor and preparation method thereof |
| CN107159426A (en) * | 2017-04-27 | 2017-09-15 | 酒泉钢铁(集团)有限责任公司 | A kind of slag is secondary to select iron method |
| CN107118509A (en) * | 2017-05-27 | 2017-09-01 | 贵州大学 | Tea saponin modification converter slag and its composite floor board being made with waste or used plastics |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114231735A (en) * | 2021-12-01 | 2022-03-25 | 攀枝花钢城集团有限公司 | Method for maintaining furnace based on smelting secondary resources |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180216 |
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| RJ01 | Rejection of invention patent application after publication |