CN217351415U - Hot stifling device of steel smelting slag - Google Patents
Hot stifling device of steel smelting slag Download PDFInfo
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- CN217351415U CN217351415U CN202221153049.7U CN202221153049U CN217351415U CN 217351415 U CN217351415 U CN 217351415U CN 202221153049 U CN202221153049 U CN 202221153049U CN 217351415 U CN217351415 U CN 217351415U
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Abstract
The utility model provides a be applied to steel smelting steel slag hot stifled device of steel smelting technical field, steel smelting steel slag hot stifled device, including the hot stifled jar body (1), airtight container (2), the hot stifled jar body (1) install in airtight container (2), hot stifled jar body (1) side sets up a plurality of exchange apertures (3), hot stifled jar body (1) bottom sets up a plurality of drainage apertures (4), airtight container (2) intercommunication steam supply pipeline (5). Steel smelting slag hot stifled device, simple structure based on brand-new promotion hot stifled effect and the thoughts of hot stifled efficiency, can increase steam and slag contact interface by a wide margin when the slag is hot stifled, improve steam and free calcium oxide and magnesium oxide reaction rate, reach and show promotion hot stifled efficiency and hot stifled quality, shorten hot stifled time purpose, can be better with the high-efficient steelmaking phase-match of converter.
Description
Technical Field
The utility model belongs to the technical field of steel smelting, more specifically say, relate to a steel smelt steel slag hot stifling device.
Background
With the development of the steel industry, the production of steel slag is increasing year by year. The steel slag contains high-content hydraulic minerals such as dicalcium silicate and tricalcium silicate similar to main active components of cement and about 8-10% of scrap steel due to high alkalinity, is a precious secondary resource, and can be used as raw materials such as cement-based admixtures and the like and used as scrap steel and the like after being treated. However, due to the limitation of the comprehensive utilization and treatment technology of steel slag, the comprehensive utilization rate of steel slag in China is lower, and is only about 25 percent at present. The deep reason that the comprehensive utilization level of the steel slag is not high is that the treatment efficiency is poor, and the steel slag contains more free calcium oxide and magnesium oxide, so that the use of the steel slag as a cement admixture is limited. At present, the domestic main steel slag treatment technology comprises a hot-seal method, a hot-splashing method, a roller method, a water quenching method and the like. The hot stuffy method is widely applied to steel enterprises because of the advantages of environmental protection, energy conservation, relatively good steel slag treatment effect and the like.
The principle of treating the steel slag by the hot stuffy method is that the hot steel slag is put into a slag tank, then the slag tank (the bottom of which is provided with a small drainage hole) is put into a closed hot stuffy device, and the steel slag is cracked and pulverized under the action of thermal stress after being watered; meanwhile, the cold water forms steam when meeting the high-temperature steel slag, the steam digests free calcium oxide and magnesium oxide which cause poor volume stability in the steel slag, and volume expansion occurs simultaneously, so that the steel slag is further pulverized and cracked. At present, hot stuffiness processes are mainly divided into a tank type hot stuffiness method and a tank type hot stuffiness method, but the two hot stuffiness methods have a remarkable defect that: tens of tons or even hundreds of tons of steel slag are processed by a single device each time, the contact between the steel slag and steam is limited, the digestion of free calcium oxide and magnesium oxide in the steel slag is not facilitated, and the processing effect is not ideal. The pool type hot stuffiness method is characterized in that a sealing cover is opened in the hot stuffiness process, and a drill rod of an excavator is used for punching steel slag to improve the steam inlet uniformity, and the method has the defects of large equipment loss, poor environment and poor hot stuffiness effect; the pot-type hot stuffiness method not only adopts pressure hot stuffiness, but also adds a rolling crushing device, and improves the contact area of steam and steel slag by increasing the specific surface area of the steel slag, thereby shortening the reaction time relative to the tank-type hot stuffiness. However, when tens of tons of steel slag are subjected to hot stuffiness, steam mainly permeates from the upper layer of the slag tank downwards, the steel slag at the middle layer and the lower layer is still difficult to be in full contact with the steam, the digestion rate of free calcium oxide and magnesium oxide in the steel slag is not high, and the hot stuffiness effect is general.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: aiming at the defects of the prior art, the hot stuffiness improving device is simple in structure, low in cost and based on a brand-new idea of improving the hot stuffiness effect, the contact interface of steam and steel slag can be greatly increased when the steel slag is hot stuffy, the reaction speed of the steam, free calcium oxide and magnesium oxide is improved, the purposes of obviously improving the hot stuffiness efficiency and hot stuffiness quality and shortening the hot stuffiness time are achieved, and the hot stuffiness improving device can be better matched with the converter high-efficiency steel-making and steel-making slag.
To solve the technical problem, the utility model discloses the technical scheme who takes does:
the utility model relates to a slag hot stifled device of steel and iron smelting steel, including the hot stifled jar body, closed container, the hot stifled jar body is installed in closed container, and hot stifled jar side of body sets up a plurality of exchange apertures, and hot stifled jar of body bottom sets up a plurality of drainage apertures, closed container intercommunication steam supply pipeline.
The side surface of the hot stifled tank body is positioned at the same height along the circumference of the side surface of the hot stifled tank body and is provided with a plurality of exchange pores according to gaps, and the exchange pores positioned at the same height along the circumference of the side surface of the hot stifled tank body form a group of exchange pore groups.
The side surface of the hot stuffy tank body is provided with a plurality of groups of exchange small hole groups from top to bottom, and the exchange small holes of two adjacent groups of exchange small hole groups are arranged in a staggered manner.
Each exchange pore of the exchange pore group positioned at the lower part is arranged as a gap part between two adjacent exchange pores of the exchange pore group positioned at the upper part.
The hot stifled tank body is arranged in the closed container through a bracket, and a gap part is formed between the bottom of the hot stifled tank body and the bottom of the closed container.
And a drainage groove is arranged at the bottom of the closed container below the hot stuffy tank body.
The steam supply pipeline of the steel smelting steel slag hot stuffy device is set to be of a structure capable of supplying high-pressure and high-temperature steam with pressure into the closed container.
The hot stuffy tank body and the closed container are both made of metal materials.
And a discharge valve is arranged on the side surface of the hot stuffy tank body close to the bottom.
Adopt the technical scheme of the utility model, theory of operation and beneficial effect are as follows:
smelt steel slag heat stifled device including the hot stifled jar body, closed container, based on arrange the internal slag of hot stifled jar in closed container hot stifled clear up free calcium oxide and magnesium oxide, promote slag pulverization and magnetic separation's thinking in, changed the structure of the hot stifled jar body to and the relation of being connected of the hot stifled jar body and closed container. Like this, 1 side of the hot stuffy jar body sets up a plurality of exchange apertures for the slag ladle has increases steam and slag contact interface by a wide margin, improves steam and free calcium oxide and magnesium oxide reaction rate, thereby reaches to show the purpose that promotes hot stuffy efficiency, shortens hot stuffy time. In the hot stuffy steel slag process of the hot stuffy tank body, the pressure state of steam in the closed container is ensured, so that the steam of exchange pores (side holes) can effectively and quickly pass through and enter pores of slag, the contact area of the steam and the slag is greatly increased, the efficiency of digesting free calcium oxide and magnesium oxide by the steam is improved, the hot stuffy efficiency is obviously improved, and the hot stuffy time is shortened. The steam is effectively and quickly fed into the pores of the slag by being matched with a pressure hot-smoldering technology, so that the contact area of the steam and the slag is greatly increased, and the efficiency of digesting free calcium oxide and magnesium oxide by the steam is further improved. The hot stifled tank body is convenient in structure and installation, simple to manufacture and low in cost. To sum up, steel smelting slag hot stifled device, simple structure, it is with low costs, based on brand-new thinking that promotes hot stifled effect and hot stifled efficiency, can increase steam and slag contact interface by a wide margin when the slag is hot stifled, improve steam and free calcium oxide and magnesium oxide reaction rate, reach and show promotion hot stifled efficiency and hot stifled quality, shorten hot stifled time purpose, can be better with the high-efficient steelmaking phase-match of converter.
Drawings
The contents of the description and the references in the drawings are briefly described as follows:
FIG. 1 is a schematic structural view of a steel smelting slag hot stuffer of the present invention;
FIG. 2 is a schematic structural view of a hot stuffy tank of the steel smelting slag hot stuffy device of the present invention;
in the drawings, the symbols are respectively: 1. hot-sealing the tank body; 2. a closed container; 3. an exchange aperture; 4. a small drainage hole; 5. a steam supply line; 6. exchanging small hole groups; 7. a support; 8. a gap portion; 9. a water discharge tank; 10. and (4) a discharge valve.
Detailed Description
The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings, wherein the embodiments of the present invention are described in detail with reference to the accompanying drawings, for example, the shapes, structures, mutual positions and connection relations of the components, the functions and operation principles of the components, and the like:
as shown in the attached drawing 1 and the attached drawing 2, the utility model relates to a slag hot stuffy device for smelting steel and iron, including the hot stuffy jar body 1, the airtight container 2, the hot stuffy jar body 1 install in airtight container 2, hot stuffy jar body 1 side sets up a plurality of exchange apertures 3, hot stuffy jar body 1 bottom sets up a plurality of drainage apertures 4, airtight container 2 intercommunication steam supply pipeline 5. Aiming at the defects in the prior art, an improved technical scheme is provided. The hot stuffy device for the steel smelting slag comprises a hot stuffy tank body 1 and a closed container 2, and based on the idea that the steel slag in the hot stuffy tank body 1 is subjected to hot stuffy digestion to free calcium oxide and magnesium oxide in the closed container, and steel slag pulverization and magnetic separation are promoted, the structure of the hot stuffy tank body and the connection relation of the hot stuffy tank body and the closed container are changed. Like this, the hot stuffy jar of body 1 side sets up a plurality of exchange apertures 3 for the slag ladle has and increases steam and slag contact interface by a wide margin, improves steam and free calcium oxide and magnesium oxide reaction rate, thereby reaches and shows the purpose that promotes hot stuffy efficiency, shortens hot stuffy time. In the hot stuffy slag process of the hot stuffy tank body 1, the steam in the closed container is guaranteed to be in a pressurized state, so that the steam of the exchange pore 3 (side hole) can effectively and quickly pass through the pores of the slag, the contact area between the steam and the slag is greatly increased, the efficiency of digesting free calcium oxide and magnesium oxide by the steam is improved, the hot stuffy efficiency is obviously improved, and the hot stuffy time is shortened. The steam is effectively and quickly fed into the pores of the slag by being matched with a pressure hot-smoldering technology, so that the contact area of the steam and the slag is greatly increased, and the efficiency of digesting free calcium oxide and magnesium oxide by the steam is further improved. The hot stifled tank body is convenient in structure and installation, simple to manufacture and low in cost. Steel smelting slag hot stifled device, simple structure, it is with low costs, based on the thought of brand-new promotion hot stifled effect, can increase steam and slag contact interface by a wide margin when the slag is hot stifled, improve steam and free calcium oxide and magnesium oxide reaction rate, reach and show promotion hot stifled efficiency and hot stifled quality, shorten hot stifled time purpose, can be better with the converter high-efficient steelmaking phase-match.
The side surface of the hot stuffy tank body 1 is positioned at the same height along the circumference of the side surface of the hot stuffy tank body 1 and is provided with a plurality of exchange pores 3 according to gaps, and the plurality of exchange pores 3 positioned at the same height along the circumference of the side surface of the hot stuffy tank body 1 form a group of exchange pore groups 6. The side surface of the hot stuffy tank body 1 is provided with a plurality of groups of small exchange hole groups 6 from top to bottom along the side surface of the hot stuffy tank body 1, and the small exchange holes 3 of two adjacent groups of small exchange hole groups 6 are arranged in a staggered manner. Each exchange pore 3 of the exchange pore group 6 positioned at the lower part is arranged at the gap part of two adjacent exchange pores 3 of the exchange pore group 6 positioned at the upper part. The above structure further limits the arrangement of the exchange holes. The exchange pores 3 of each exchange pore group 6 are uniformly arranged according to the same gap so as to ensure the uniform contact of the steam and the slag in the tank; the exchange small holes 3 of the two adjacent groups of exchange small hole groups 6 are arranged in a staggered way, so that the inside and outside communication is ensured, and the strength of the hot stuffy tank body 1 is ensured to meet the requirement; the size and the interval of the small exchange holes 3 are required to increase the contact area between steam and side slag as much as possible on the basis of ensuring the strength of the slag tank, and the size of the steel slag particle size is required to be considered for the size of the small exchange holes 3 so as to prevent the slag particles from leaking from the side holes when the thermal steel slag is added into the slag tank.
The hot stuffy tank body 1 is arranged in the closed container 2 through a bracket 7, and a gap part 8 is formed between the bottom of the hot stuffy tank body 1 and the bottom of the closed container 2. And a drainage channel 9 is arranged at the bottom of the closed container 2 below the hot stuffy tank body 1. Above-mentioned structure, hot stifled jar body 1 passes through support 7 to be installed in airtight container 2, ensures that hot stifled jar body 1 reliably arranges in airtight container 2, and clearance portion 8's setting is convenient for the convenient unblocked drainage of drainage aperture 4, and the drainage is drained away through water drainage tank 9.
The steam supply pipeline 5 of the steel smelting steel slag hot stuffy device is set to be of a structure capable of supplying high-pressure and high-temperature steam with pressure into the closed container 2. With the structure, when the hot stuffy tank body carries out hot stuffy treatment on the steel slag, the hot stuffy treatment is carried out in a high-pressure steam environment in the closed container. Make during the effective hole that gets into the sediment of steam fast, increase the area of contact of steam and sediment by a wide margin, further improve the efficiency that free calcium oxide and magnesium oxide were cleared up to steam, promote the vexed effect of steel slag heat.
The hot stuffy tank body 1 and the closed container 2 are both made of metal materials.
And a discharge valve 10 is arranged on the side surface of the hot stuffy tank body 1 close to the bottom. The discharge valve is used for discharging the steel slag after the hot stuffy treatment. The discharge valve 10 communicates with a discharge line.
Smelt steel slag heat stifled device including the hot stifled jar body, closed container, based on arrange the internal slag of hot stifled jar in closed container hot stifled clear up free calcium oxide and magnesium oxide, promote slag pulverization and magnetic separation's thinking in, changed the structure of the hot stifled jar body to and the relation of being connected of the hot stifled jar body and closed container. Like this, 1 side of the hot stuffy jar body sets up a plurality of exchange apertures for the slag ladle has increases steam and slag contact interface by a wide margin, improves steam and free calcium oxide and magnesium oxide reaction rate, thereby reaches to show the purpose that promotes hot stuffy efficiency, shortens hot stuffy time. In the hot stuffy steel slag process of the hot stuffy tank body, the steam in the closed container is ensured to be in a pressurized state, so that the steam of the exchange pores (side holes) can effectively and quickly pass through the pores to enter the slag, the contact area of the steam and the slag is greatly increased, the efficiency of digesting free calcium oxide and magnesium oxide by the steam is improved, the hot stuffy efficiency is obviously improved, and the hot stuffy time is shortened. The steam is effectively and quickly fed into the pores of the slag by being matched with a pressure hot-smoldering technology, so that the contact area of the steam and the slag is greatly increased, and the efficiency of digesting free calcium oxide and magnesium oxide by the steam is further improved. The hot stuffy tank body is convenient and fast to install, simple to manufacture and low in cost. To sum up, steel smelting slag hot stifled device, simple structure, it is with low costs, based on brand-new thinking that promotes hot stifled effect and hot stifled efficiency, can increase steam and slag contact interface by a wide margin when the slag is hot stifled, improve steam and free calcium oxide and magnesium oxide reaction rate, reach and show promotion hot stifled efficiency and hot stifled quality, shorten hot stifled time purpose, can be better with the high-efficient steelmaking phase-match of converter.
The present invention has been described in detail with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above embodiments, and the present invention can be implemented in various ways without modification, and the present invention is not limited by the above embodiments.
Claims (9)
1. The utility model provides a steel smelting slag hot stifled device which characterized in that: the steam hot stuffy tank comprises a hot stuffy tank body (1) and a closed container (2), wherein the hot stuffy tank body (1) is installed in the closed container (2), a plurality of exchange pores (3) are formed in the side surface of the hot stuffy tank body (1), a plurality of drainage pores (4) are formed in the bottom of the hot stuffy tank body (1), and the closed container (2) is communicated with a steam supply pipeline (5).
2. The steel smelting slag hot-smoldering device of claim 1, characterized in that: the hot stuffy jar of body (1) side along hot stuffy jar of body (1) side a week be located same height and set up a plurality of exchange aperture (3) according to the clearance, along hot stuffy jar of body (1) side a week be located a plurality of exchange aperture (3) of same height form a set of exchange aperture group (6).
3. The steelmaking slag hot stuffer apparatus of claim 2, wherein: the side surface of the hot stuffy tank body (1) is provided with a plurality of groups of exchange small hole groups (6) from top to bottom along the side surface of the hot stuffy tank body (1), and the exchange small holes (3) of the two adjacent groups of exchange small hole groups (6) are arranged in a staggered manner.
4. The steelmaking slag hot stuffer apparatus of claim 3, wherein: each exchange pore (3) of the exchange pore group (6) positioned at the lower part is arranged at the gap part of two adjacent exchange pores (3) of the exchange pore group (6) positioned at the upper part.
5. The apparatus according to claim 1 or 2, wherein: the hot stuffy tank body (1) is installed in the closed container (2) through a support (7), and a gap part (8) is formed between the bottom of the hot stuffy tank body (1) and the bottom of the closed container (2).
6. The steelmaking smelting slag hot stuffer apparatus of claim 5, further comprising: and a drainage groove (9) is arranged at the bottom of the closed container (2) below the hot stuffy tank body (1).
7. The apparatus according to claim 1 or 2, wherein: the steam supply pipeline (5) of the steel smelting steel slag hot stuffy device is set to be of a structure capable of supplying high-pressure and high-temperature steam with pressure into the closed container (2).
8. The apparatus according to claim 1 or 2, wherein: the hot stuffy tank body (1) and the closed container (2) are both made of metal materials.
9. The hot smoldering device for steel smelting slag according to claim 1 or 2, characterized in that: and a discharge valve (10) is arranged at the position, close to the bottom, of the side surface of the hot stuffy tank body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221153049.7U CN217351415U (en) | 2022-05-13 | 2022-05-13 | Hot stifling device of steel smelting slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221153049.7U CN217351415U (en) | 2022-05-13 | 2022-05-13 | Hot stifling device of steel smelting slag |
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| Publication Number | Publication Date |
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| CN217351415U true CN217351415U (en) | 2022-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221153049.7U Active CN217351415U (en) | 2022-05-13 | 2022-05-13 | Hot stifling device of steel smelting slag |
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| CN (1) | CN217351415U (en) |
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- 2022-05-13 CN CN202221153049.7U patent/CN217351415U/en active Active
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