CN210287392U - Blast furnace slag avoiding device - Google Patents
Blast furnace slag avoiding device Download PDFInfo
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- CN210287392U CN210287392U CN201920332308.4U CN201920332308U CN210287392U CN 210287392 U CN210287392 U CN 210287392U CN 201920332308 U CN201920332308 U CN 201920332308U CN 210287392 U CN210287392 U CN 210287392U
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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
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Abstract
The utility model discloses a keep away sediment device belongs to the blast furnace and keeps away sediment technical field, include the big ditch of the storage iron formula and the little ditch of storage iron formula that communicate in order according to the flow direction of molten iron, set up in the big ditch of storage iron formula and be used for carrying out the main sediment ware of keeping away of sediment iron separation to the molten iron of flowing through, the main big ditch of storage iron formula that keeps away sediment ware both ends is and the intercommunication sets up the side ditch, is equipped with vice sediment ware of keeping away in the side ditch, is equipped with interim pit on the vice ditch bottom surface of vice sediment ware department of keeping away, and main in the big ditch of storage iron formula is kept away and is got the position between the feed end of sediment ware and side ditch and set up main end. The utility model has the advantages of simple and reasonable structure, can reduce the main emergence of keeping away the stifled condition of sediment ware that leads to because of the mobility difference of slag iron, can ensure not to take place the external accident of stove when blowing in.
Description
Technical Field
The utility model relates to a blast furnace, in particular to a slag avoiding device, belonging to the technical field of slag avoidance of blast furnaces.
Background
When tapping in front of the blast furnace, the liquid slag-iron mixture flows to the main slag avoiding device through the iron storage type large ditch, the slag-iron is separated through the main slag avoiding device, the separated molten iron flows to the iron storage type small ditch, and the slag block is intercepted by the main slag avoiding device and stays in the single small pit at the bottom of the iron storage type large ditch. However, after the blast furnace is opened or overhauled, the fluidity of the iron slag is poor, the single pit of the iron storage type large ditch is easy to be blocked by a slag avoiding device, the fluidity of the iron slag is poor, and even the iron slag is blocked, so that production accidents are caused.
Disclosure of Invention
The technical problem to be solved by the utility model is to provide a blast furnace slag avoiding device, which can reduce the occurrence of the blocking and death condition of a main slag avoiding device caused by poor fluidity of slag iron, and can ensure that no furnace external accident occurs when opening the furnace.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:
the utility model provides a blast furnace keeps away sediment device, includes the big ditch of the storage iron formula and the little ditch of storage iron formula that communicate in order according to the flow direction of molten iron, set up in the big ditch of storage iron formula and be used for carrying out the main sediment ware of keeping away of sediment iron separation to the molten iron that flows through, the main big ditch of storage iron formula that keeps away sediment ware both ends is connected and is set up the vice ditch, be equipped with vice sediment ware of keeping away in the vice ditch, vice ditch bottom surface of keeping away sediment ware department is equipped with interim pit, the position of keeping away between the feed end of sediment ware and vice ditch of main in the big ditch of storage iron formula sets up main end cap.
The utility model discloses technical scheme's further improvement lies in: and a first auxiliary plug is arranged at the feed end of the auxiliary ditch.
The utility model discloses technical scheme's further improvement lies in: and a second auxiliary plug is arranged at the discharge end of the auxiliary channel.
The utility model discloses technical scheme's further improvement lies in: the bottom surface of the iron storage type large ditch is lower than the bottom surface of the auxiliary ditch.
The utility model discloses technical scheme's further improvement lies in: the bottom surface of the iron storage type large ditch is an inclined plane which is inclined downwards from the feeding end to the discharging end.
The utility model discloses technical scheme's further improvement lies in: the bottom surface of the secondary groove is a slope inclined downwards from the feeding end to the discharging end.
Due to the adoption of the technical scheme, the utility model discloses the technological progress who gains is:
the utility model has the advantages of simple and reasonable structure, can reduce the main emergence of keeping away the stifled condition of sediment ware that leads to because of the mobility difference of slag iron, can ensure not to take place the external accident of stove when blowing in.
The utility model discloses vice ditch, vice slag trap and main end cap's design, the three cooperation makes the blast furnace can follow vice ditch earlier and flow through in blow-in or maintenance back slag iron, has avoided the owner to keep away the emergence of slag trap by the stifled dead condition, and the later stage can be so that a great amount of molten iron through the big ditch of iron storage formula, has prolonged the life cycle of blast furnace, has reduced the maintenance number of times.
The utility model discloses the bottom surface of vice ditch is higher than the design of the big ditch bottom surface of iron storage formula for the vice pit position of keeping away sediment ware department is shallower in the vice ditch, and the main sediment ware of keeping away of comparing changes the clearance, can reduce operating personnel's intensity of labour.
When the conditions such as the fluidity of the molten iron and the like are good after the blast furnace is opened or overhauled, the first auxiliary plug or the second auxiliary plug of the utility model are assembled, so that the molten iron only passes through the iron storage type large ditch and does not flow through the auxiliary ditch; the two plugs can be not assembled, and can flow through the secondary channel under the condition of good performances of slag iron fluidity and the like, so that the effect of shunting can be achieved, the iron storage pressure of the iron storage type large channel is reduced, and the service cycle and the service life of the blast furnace are prolonged.
The utility model discloses the bottom surface of big ditch of iron storage formula and vice ditch all is for decurrent inclined plane from the feed end to the discharge end, can promote the molten iron from the flow of feed end to the discharge end, the mobility of reinforcing molten iron.
Drawings
FIG. 1 is a schematic structural view of a blast furnace slag avoiding device according to embodiments 1-3 of the present invention;
wherein, the method comprises the following steps of 1-iron storage type large ditch, 2-iron storage type small ditch, 3-main slag avoiding device, 4-auxiliary ditch, 5-auxiliary slag avoiding device, 6-main plug, 7-first auxiliary plug and 8-second auxiliary plug.
Detailed Description
The present invention will be described in further detail with reference to the following examples:
a blast furnace slag avoiding device comprises an iron storage type large ditch 1 and an iron storage type small ditch 2 which are sequentially communicated according to the flowing direction of molten iron, the bottom surface of the iron storage type large ditch 1 is an inclined plane which is inclined downwards from a feeding end to a discharging end, a main slag avoiding device 3 for separating slag from the molten iron flowing through is arranged in the iron storage type large ditch 1, a single pit (which is a device which is commonly used in the field and is used for containing the molten iron) is arranged on the bottom surface of the iron storage type large ditch 1 at the position of the main slag avoiding device 3, the iron storage type large ditches 1 at the two ends of the main slag avoiding device 3 are connected and communicated with an auxiliary ditch 4, the bottom surface of the iron storage type large ditch 1 is lower than the bottom surface of the auxiliary ditch 4, the bottom surface of the auxiliary ditch 4 is an inclined plane which is inclined downwards from the feeding end to the discharging end, an auxiliary slag avoiding device 5 is arranged in the auxiliary ditch 4, a temporary pit (which is a device which is commonly used for containing the molten iron) is arranged on the bottom surface of the auxiliary slag avoiding, a main plug 6 is arranged between the main slag avoiding device 3 in the iron storage type large ditch 1 and the feeding end of the auxiliary ditch 4. Preferably, a first auxiliary choke plug 7 is arranged at the feeding end of the auxiliary ditch 4, and a second auxiliary choke plug 8 can be arranged at the discharging end of the auxiliary ditch 4. The main slag avoiding device 3 and the auxiliary slag avoiding device 5 both use slag avoiding devices in the prior art and are used for separating iron slag from molten iron.
Example 1
As shown in fig. 1, a blast furnace slag avoiding device comprises an iron storage type large ditch 1 and an iron storage type small ditch 2 which are sequentially communicated according to the flowing direction of molten iron, wherein the bottom surface of the iron storage type large ditch 1 is an inclined plane which is inclined downwards from a feeding end to a discharging end, a main slag avoiding device 3 for carrying out slag-iron separation on the flowing molten iron is arranged in the iron storage type large ditch 1, a single pit is arranged on the bottom surface of the iron storage type large ditch 1 at the position of the main slag avoiding device 3, the iron storage type large ditches 1 at the two ends of the main slag avoiding device 3 are communicated with an auxiliary ditch 4, the bottom surface of the iron storage type large ditch 1 is lower than the bottom surface of the auxiliary ditch 4, an auxiliary slag avoiding device 5 is arranged in the auxiliary ditch 4, a temporary pit is arranged on the bottom surface of the auxiliary ditch 4 at the position of the auxiliary slag avoiding device 5, and a main plug 6 is arranged at the position between the feeding end of the main slag avoiding device 3 and the auxiliary ditch.
Example 2
As shown in figure 1, the blast furnace slag avoiding device comprises an iron storage type large ditch 1 and an iron storage type small ditch 2 which are sequentially communicated along the flowing direction of molten iron, the bottom surface of the iron storage type large ditch 1 is an inclined surface which is inclined downwards from a feeding end to a discharging end, a main slag avoiding device 3 for separating slag from iron on the flowing molten iron is arranged in the iron storage type large ditch 1, a single pit is arranged on the bottom surface of the iron storage type large ditch 1 at the position of the main slag avoiding device 3, the iron storage type large ditches 1 at the two ends of the main slag avoiding device 3 are communicated with an auxiliary ditch 4, the bottom surface of the iron storage type large ditch 1 is lower than the bottom surface of the auxiliary ditch 4, the bottom surface of the auxiliary ditch 4 is an inclined plane which is inclined downwards from a feeding end to a discharging end, an auxiliary slag avoiding device 5 is arranged in the auxiliary ditch 4, a temporary pit is arranged on the bottom surface of the auxiliary ditch 4 at the position of the auxiliary slag avoiding device 5, a main plug 6 is arranged between the main slag avoiding device 3 in the iron storage type large ditch 1 and the feed end of the auxiliary ditch 4, and a first auxiliary plug 7 is arranged at the feed end of the auxiliary ditch 4.
Example 3
As shown in figure 1, a blast furnace slag avoiding device comprises an iron storage type large ditch 1 and an iron storage type small ditch 2 which are communicated in sequence according to the flowing direction of molten iron, the bottom surface of the iron storage type large ditch 1 is an inclined plane which is inclined downwards from a feeding end to a discharging end, a main slag avoiding device 3 for carrying out slag-iron separation on the flowing molten iron is arranged in the iron storage type large ditch 1, a single pit is arranged on the bottom surface of the iron storage type large ditch 1 at the position of the main slag avoiding device 3, the iron storage type large ditches 1 at the two ends of the main slag avoiding device 3 are communicated with a secondary ditch 4, the bottom surface of the iron storage type large ditch 1 is lower than the bottom surface of the secondary ditch 4, the bottom surface of the secondary ditch 4 is an inclined plane which is inclined downwards from the feeding end to the discharging end, a secondary slag avoiding device 5 is arranged in the secondary ditch 4, a temporary small pit is arranged on the bottom surface of the secondary ditch 4 at the position of the secondary slag avoiding device 5, a main slag avoiding device 3 of the iron storage type large ditch 1 is arranged at the position between the feeding end of the secondary ditch, and a second auxiliary plug 8 is arranged at the discharge end of the auxiliary channel 4.
After the blast furnace is opened or overhauled, the main plug 6 in the iron storage type large ditch 1 is assembled, the first auxiliary plug 7 or the second auxiliary plug 8 firstly detaches the two auxiliary plugs, so that iron slag flows to the auxiliary ditch 4 through the feeding end of the iron storage type large ditch 1, the iron slag is separated by flowing through the auxiliary slag avoiding device 5 from the feeding end of the auxiliary ditch 4, and the separated molten iron flows through the iron storage type small ditch 2 through the discharging end of the auxiliary ditch 4. And when the performances of the slag iron in all aspects such as fluidity and the like meet the standard, assembling the first auxiliary plug 7 or the second auxiliary plug 8, and removing the main plug 6, so that the molten iron with better fluidity flows through the main slag avoiding device 3 through the feeding end of the iron storage type large runner 1 and then flows to the iron storage type small runner 2. The temporary pit at the auxiliary slag avoiding device 5 in the auxiliary ditch 4 is shallow in position and easy to clean, and the blast furnace makes slag iron flow from the auxiliary ditch 4 firstly after the blast furnace is opened or overhauled, so that the phenomenon that the main slag avoiding device is blocked is avoided, a large amount of molten iron passes through the iron storage type large ditch 1, the service cycle of the blast furnace is prolonged, and the maintenance frequency is reduced. The first auxiliary plug 7 or the second auxiliary plug 8 can be not assembled, and can also play a role in shunting when flowing through the auxiliary channel 4 under the condition of good performances of slag iron fluidity and the like, so that the iron storage pressure of the iron storage type large channel 1 is reduced, and the service cycle and the service life of the blast furnace are prolonged.
Claims (6)
1. The utility model provides a blast furnace keeps away sediment device, includes the big ditch of iron storage formula (1) and the little ditch of iron storage formula (2) that communicate in order according to the flow direction of molten iron, sets up in the big ditch of iron storage formula (1) and is used for carrying out the main sediment ware (3) of keeping away of sediment iron separation to the molten iron that flows through, its characterized in that: the iron storage type large ditch (1) at the two ends of the main slag avoiding device (3) is communicated with an auxiliary ditch (4) in parallel, an auxiliary slag avoiding device (5) is arranged in the auxiliary ditch (4), a temporary pit is arranged on the bottom surface of the auxiliary ditch (4) at the auxiliary slag avoiding device (5), and a main plug (6) is arranged at a position between the main slag avoiding device (3) in the iron storage type large ditch (1) and the feeding end of the auxiliary ditch (4).
2. The blast furnace slag avoiding device according to claim 1, wherein: the feeding end of the auxiliary ditch (4) is provided with a first auxiliary choke plug (7).
3. The blast furnace slag avoiding device according to claim 2, wherein: the discharge end of the auxiliary channel (4) is provided with a second auxiliary choke plug (8).
4. A blast furnace slag avoiding device according to any one of claims 1 to 3, characterized in that: the bottom surface of the iron storage type large ditch (1) is lower than the bottom surface of the auxiliary ditch (4).
5. The blast furnace slag avoiding device according to claim 1, wherein: the bottom surface of the iron storage type large ditch (1) is an inclined surface inclined downwards from the feeding end to the discharging end.
6. The blast furnace slag avoiding device according to claim 1, wherein: the bottom surface of the auxiliary groove (4) is a slope inclined downwards from the feeding end to the discharging end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920332308.4U CN210287392U (en) | 2019-03-15 | 2019-03-15 | Blast furnace slag avoiding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920332308.4U CN210287392U (en) | 2019-03-15 | 2019-03-15 | Blast furnace slag avoiding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210287392U true CN210287392U (en) | 2020-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920332308.4U Active CN210287392U (en) | 2019-03-15 | 2019-03-15 | Blast furnace slag avoiding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210287392U (en) |
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2019
- 2019-03-15 CN CN201920332308.4U patent/CN210287392U/en active Active
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