CN213012932U - Blast furnace for iron making with reduced heat energy loss - Google Patents
Blast furnace for iron making with reduced heat energy loss Download PDFInfo
- Publication number
- CN213012932U CN213012932U CN202021597307.1U CN202021597307U CN213012932U CN 213012932 U CN213012932 U CN 213012932U CN 202021597307 U CN202021597307 U CN 202021597307U CN 213012932 U CN213012932 U CN 213012932U
- Authority
- CN
- China
- Prior art keywords
- cold water
- water wall
- blast furnace
- wall
- furnace
- 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.)
- Active
Links
Images
Landscapes
- Blast Furnaces (AREA)
Abstract
The application discloses reduce blast furnace for ironmaking of blast furnace heat energy loss includes: the cooling units are arranged on the inner wall of the furnace lining around the upper layer of the blast furnace for iron making; the cooling unit includes: the water outlet pipe is communicated with the first cold water wall, and the water suction pump is arranged on the water outlet pipe; through with the cooling wall sampling on the furnace body lateral wall from bottom to top 9 vertical rows cooling wall intercommunications to supply water through same delivery pipe, realize the reasonable control to furnace body upper portion cooling strength, in order to promote the protection to the oven, and control heat loss and reduce coke ratio energy saving and consumption reduction under effective refrigerated prerequisite. Can effectively reduce the consumption of cooling water of the blast furnace and can also ensure the water consumption of the hot blast furnace and the furnace bosh.
Description
Technical Field
The application relates to a blast furnace for iron making, which reduces the heat energy loss of the blast furnace, and belongs to the technical field of fine steel preparation.
Background
A blast furnace is a shaft furnace that uses coke (metallurgical coke), iron ore, and a flux to make iron. Its internal shape is composed of cylinder and truncated cone, steel plate is used as furnace casing, refractory brick lining is built in it, and cooler is used to protect lining and furnace casing.
However, because the productivity is continuously expanded, the height of the existing blast furnace is gradually increased, and the heat energy distribution of the existing cooler on the surfaces of the lining and the furnace shell is uneven, so that the phenomena of thick furnace wall knot, local erosion and furnace shell cracking which affect the service life of the blast furnace are easily caused.
Once the blast furnace appears the furnace wall knot thick, local erosion, stove outer covering fracture, all need to shut down the stove and overhaul, maintain, the opening of every time blast furnace all need consume a large amount of energy, still influences the production progress of other processes simultaneously, leads to other processes to shut down, reduces production efficiency, increases manufacturing cost.
The furnace wall on the upper part of the furnace body is thick, serious people directly influence the airflow distribution in the blast furnace, and particularly, the execution of the airflow control principle of inhibiting the edge and opening the center of the blast furnace is greatly influenced when the diameter of a furnace hearth is increased in the later period of the blast furnace.
And after the temperature of the outer wall of the blast furnace is reduced too much, the energy consumption of the blast furnace is increased, and the production cost is increased.
SUMMERY OF THE UTILITY MODEL
The application provides a blast furnace for iron making, which reduces the heat energy loss of the blast furnace and is used for solving the problems of thick furnace wall, local erosion and furnace shell cracking of a furnace body caused by the cooling transition of an upper-section furnace body in the existing blast furnace; the transition cooling at the upper part of the furnace body increases the energy consumption of the blast furnace.
The application provides a blast furnace for ironmaking that reduces blast furnace heat energy loss includes: the cooling units are arranged on the inner wall of the furnace lining around the upper layer of the blast furnace for iron making;
the cooling unit includes: a water outlet pipe, a water suction pump, a first cold water wall, a second cold water wall, a third cold water wall, a fourth cold water wall, a fifth cold water wall, a sixth cold water wall, a seventh cold water wall, an eighth cold water wall, a ninth cold water wall and a water inlet pipe,
the water outlet pipe is communicated with the first cold water wall, and a water suction pump is arranged on the water outlet pipe;
the first cold water wall, the second cold water wall, the third cold water wall, the fourth cold water wall, the fifth cold water wall, the sixth cold water wall, the seventh cold water wall, the eighth cold water wall and the ninth cold water wall are communicated in sequence through pipelines;
the ninth cold water wall is communicated with the water inlet pipe; the water inlet pipe is communicated with the soft water storage tank;
the first cold water wall, the second cold water wall and the third cold water wall in the plurality of cooling units form a 12 th layer cold water wall on the upper part of the blast furnace;
the fourth cold water wall, the fifth cold water wall and the sixth cold water wall in the plurality of cooling units enclose a 11 th layer cold water wall at the upper part of the blast furnace;
and the seventh cold water wall, the eighth cold water wall and the ninth cold water wall in the plurality of cooling units form a 10 th layer cold water wall at the upper part of the blast furnace.
Preferably, the method comprises the following steps: and 12 cooling units which are arranged at intervals along the circumferential direction of the blast furnace lining.
Preferably, the method comprises the following steps: and the first cold water wall is communicated with the second cold water wall through the first communication pipe.
Preferably, the method comprises the following steps: and the second communicating pipe is used for communicating the second cold water wall with the third cold water wall.
Preferably, the method comprises the following steps: and the third communicating pipe is communicated with the fourth cold water wall through the third communicating pipe.
Preferably, the method comprises the following steps: and the fourth communicating pipe is communicated with the fifth cold water wall through the fourth communicating pipe.
Preferably, the method comprises the following steps: and the fifth communicating pipe is used for communicating the fifth cold water wall with the sixth cold water wall.
Preferably, the method comprises the following steps: and the fifth communicating pipe is used for communicating the fifth cold water wall with the sixth cold water wall.
Preferably, the method comprises the following steps: and the seventh communication pipe is used for communicating the seventh cold water wall with the eighth cold water wall through the seventh communication pipe.
Preferably, the method comprises the following steps: and the eighth communicating pipe is communicated with the ninth cold water wall through the eighth communicating pipe.
The beneficial effects that this application can produce include:
1) the utility model provides a reduce blast furnace for ironmaking of blast furnace heat energy loss, through with the cooling wall sampling on the furnace body lateral wall by 9 blocks of cooling walls of vertical row intercommunication on going to supply water through same delivery pipe, realize the reasonable control to furnace shaft upper portion cooling strength, in order to promote the protection to the oven, and control heat loss and reduce coke ratio energy saving and consumption reduction under effective refrigerated prerequisite. Can effectively reduce the consumption of cooling water of the blast furnace and can also ensure the water consumption of the hot blast furnace and the furnace bosh.
2) The utility model provides a reduce blast furnace for ironmaking of blast furnace heat energy loss can effectively reduce the fuel ratio of blast furnace, and is more reasonable to the whole cooling degree of blast furnace, can provide the condition for current high smelting intensity with cooling intensity reasonable control in the scope of guaranteeing blast furnace inside lining safety, effectively reduces blast furnace heat energy loss, has reduced fuel reactive power consumption.
3) The utility model provides a reduce blast furnace for iron-making of blast furnace heat energy loss can prevent effectively that the blast furnace that furnace wall knot is thick, local erosion etc. arouses because of cooling factor from damaging, extension blast furnace life reduces the blast furnace and stops machine and overhaul, maintain the number of times, improves production efficiency, reduces the blast furnace and opens and stop the energy of consumption.
4) The blast furnace for ironmaking that this application provided reduces blast furnace heat energy loss need not to carry out too much structural modification to furnace body itself and can realize the effective regulation and control to blast furnace upper segment cooling water temperature, avoids cooling water temperature to lead to the furnace body to take place all kinds of troubles excessively, adopts this cooler shaft upper portion cooling strength steerable in 4 ~ 12 ℃ of water temperature difference within range.
Drawings
FIG. 1 is a schematic front view of a cooling unit of an ironmaking blast furnace for reducing heat loss of the blast furnace according to the present invention;
illustration of the drawings:
11. a water outlet pipe; 10. a first cold water wall; 21. a first communication pipe; 20. a second cold water wall; 31. a second communicating pipe; 30. a third cold water wall; 41. a third communicating pipe; 40. a fourth cold water wall; 51. a fourth communicating pipe; 50. a fifth cold water wall; 61. a fifth communicating pipe; 60. a sixth cold water wall; 71. a sixth communicating pipe; 70. a seventh cold water wall; 81. a seventh communicating pipe; 80. an eighth cold water wall; 91. an eighth communicating pipe; 90. a ninth cold water wall; 12. a water inlet pipe; 13. a water pump.
Detailed Description
The present application will be described in detail with reference to examples, but the present application is not limited to these examples.
Referring to fig. 1, the present application provides a blast furnace for iron making with reduced heat loss, comprising: the cooling units are arranged on the inner wall of the furnace lining around the upper layer of the blast furnace for iron making; the cooling unit includes: the water cooling system comprises a water outlet pipe 11, a water suction pump 13, a first cold water wall 10, a second cold water wall 20, a third cold water wall 30, a fourth cold water wall 40, a fifth cold water wall 50, a sixth cold water wall 60, a seventh cold water wall 70, an eighth cold water wall 80, a ninth cold water wall 90 and a water inlet pipe 12, wherein the water outlet pipe 11 is communicated with the first cold water wall 10, and the water suction pump 13 is arranged on the water outlet pipe 11; the first cold water wall 10, the second cold water wall 20, the third cold water wall 30, the fourth cold water wall 40, the fifth cold water wall 50, the sixth cold water wall 60, the seventh cold water wall 70, the eighth cold water wall 80 and the ninth cold water wall 90 are sequentially communicated through pipelines; the ninth cold water wall 90 is communicated with the water inlet pipe 12; the water inlet pipe 12 is communicated with the soft water storage tank;
the first cold water wall 10, the second cold water wall 20 and the third cold water wall 30 in the plurality of cooling units form a blast furnace upper layer 12 cold water wall;
the fourth cold water wall 40, the fifth cold water wall 50 and the sixth cold water wall 60 in the plurality of cooling units form a 11 th layer cold water wall on the upper part of the blast furnace;
the seventh cold water wall 70, the eighth cold water wall 80 and the ninth cold water wall 90 in the plurality of cooling units form a 10 th layer cold water wall at the upper part of the blast furnace.
According to the setting, the cooling strength of the upper part of the blast furnace can be reduced while the use strength of the blast furnace is guaranteed, the service life of the upper part of the blast furnace body is protected, the conditions that the furnace wall is thick, local erosion and the furnace shell is cracked frequently appear on the upper part of the blast furnace in the use process are avoided, the shutdown maintenance frequency is reduced, the energy loss caused by repeatedly starting and stopping the blast furnace is reduced, the temperature of the cooling wall on the upper part of the blast furnace is improved, and the cooling effect is guaranteed while the heat energy loss on the upper part of the blast furnace is.
Each cooling unit is used as a separate cooling water circulation unit, and the cooling temperature of each part can be ensured to be the same. The lower cooling wall of the blast furnace is arranged in a mode that the adjacent 3 cooling walls are communicated, and the temperature difference of the cooling water on the upper part of the furnace body can be effectively controlled to be 2-10 ℃ after the connection, so that a better temperature control effect is achieved. The pressure value can be monitored by arranging a pressure gauge on the water inlet pipe, the pressure of the soft water main pipe is measured to improve 50KPa, the water consumption of the blast furnace cooling is directly saved, and the water supply amount is directly increased to the hot blast furnace, the furnace belly and the like to ensure safe and effective cooling.
Preferably, the method comprises the following steps: and 12 cooling units which are arranged at intervals along the circumferential direction of the blast furnace lining. According to the arrangement, the furnace lining can be fully covered for full cooling.
Preferably, the method comprises the following steps: the first communication pipe 21 communicates the first cold water wall 10 with the second cold water wall 20 through the first communication pipe 21. The pipeline communication of the first cold water wall 10 and the second cold water wall 20 is realized by arranging the DN32 quick-coupling metal hose, the cost is reduced, and the refitting efficiency is high.
Preferably, the method comprises the following steps: the second communication pipe 31, the second cold water wall 20 and the third cold water wall 30 are communicated through the second communication pipe 31. The pipeline communication of the second cold water wall 20 and the third cold water wall 30 is realized by arranging a DN32 quick-coupling metal hose, the cost is reduced, and the refitting efficiency is high.
Preferably, the method comprises the following steps: the third communication pipe 41, the third cold water wall 30 and the fourth cold water wall 40 are communicated through the third communication pipe 41. The pipeline communication of the third cold water wall 30 and the fourth cold water wall 40 is realized by arranging a DN32 quick-coupling metal hose, the cost is reduced, and the refitting efficiency is high.
Preferably, the method comprises the following steps: the fourth communication pipe 51, the fourth cold water wall 40 and the fifth cold water wall 50 are communicated with each other through the fourth communication pipe 51. The pipeline communication of the fourth cold water wall 40 and the fifth cold water wall 50 is realized by arranging a DN32 quick-coupling metal hose, the cost is reduced, and the refitting efficiency is high.
Preferably, the method comprises the following steps: the fifth communication pipe 61, the fifth cold water wall 50 and the sixth cold water wall 60 are communicated through the fifth communication pipe 61. The pipeline communication of the fifth cold water wall 50 and the sixth cold water wall 60 is realized by arranging a DN32 quick-coupling metal hose, the cost is reduced, and the refitting efficiency is high.
Preferably, the method comprises the following steps: the sixth communication pipe 71 communicates the sixth cold water wall 60 with the seventh cold water wall 70 via the sixth communication pipe 71. The pipeline communication of the sixth cold water wall 60 and the seventh cold water wall 70 is realized by arranging a DN32 quick joint metal hose, the cost is reduced, and the refitting efficiency is high.
Preferably, the method comprises the following steps: the seventh communication pipe 81 communicates the seventh cold water wall 70 with the eighth cold water wall 80 through the seventh communication pipe 81. The pipeline communication of the seventh cold water wall 70 and the eighth cold water wall 80 is realized by arranging a DN32 quick-coupling metal hose, the cost is reduced, and the refitting efficiency is high.
Preferably, the method comprises the following steps: the eighth communication pipe 91, the eighth cold water wall 80 and the ninth cold water wall 90 are communicated through the eighth communication pipe 91. The pipeline communication of the eighth cold water wall 80 and the ninth cold water wall 90 is realized by arranging a DN32 quick-coupling metal hose, the cost is reduced, and the refitting efficiency is high.
In a specific embodiment, after the cooler is adopted, the consumption of the soft water supply of the blast furnace is reduced to 1/3 of the original water consumption, the water consumption for cooling the blast furnace can be directly saved after the pressure of a soft water main pipe is increased to 50KPa, and the water supply amount is directly increased to the hot blast furnace, the furnace bosh and the like to ensure safe and effective cooling;
the fuel ratio of the blast furnace is reduced, the cooling intensity is reasonably controlled within the range of guaranteeing the safety of the blast furnace, conditions are provided for the current high smelting intensity, the heat energy loss of the blast furnace is effectively reduced, and the reactive power consumption of fuel is reduced; the blast furnace damage caused by cooling factors such as thick furnace wall knot, local erosion and the like is effectively prevented, and the working target of the long-life blast furnace is promoted;
reference throughout this specification to "one embodiment," "another embodiment," "an embodiment," "a preferred embodiment," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment described generally in this application. The appearances of the same phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the scope of the disclosure to effect such feature, structure, or characteristic in connection with other embodiments.
Although the present application has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure and claims of this application. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.
Claims (10)
1. A blast furnace for iron making which reduces heat energy loss of the blast furnace, comprising: the cooling units are arranged on the inner wall of the furnace lining around the upper layer of the blast furnace for iron making;
the cooling unit includes: a water outlet pipe (11), a water suction pump (13), a first cold water wall (10), a second cold water wall (20), a third cold water wall (30), a fourth cold water wall (40), a fifth cold water wall (50), a sixth cold water wall (60), a seventh cold water wall (70), an eighth cold water wall (80), a ninth cold water wall (90) and a water inlet pipe (12),
the water outlet pipe (11) is communicated with the first cold water wall (10), and a water suction pump (13) is arranged on the water outlet pipe (11);
the first cold water wall (10), the second cold water wall (20), the third cold water wall (30), the fourth cold water wall (40), the fifth cold water wall (50), the sixth cold water wall (60), the seventh cold water wall (70), the eighth cold water wall (80) and the ninth cold water wall (90) are communicated in sequence through pipelines;
the ninth cold water wall (90) is communicated with the water inlet pipe (12); the water inlet pipe (12) is communicated with the soft water storage tank;
the first cold water wall (10), the second cold water wall (20) and the third cold water wall (30) in the plurality of cooling units form a 12 th layer cold water wall on the upper part of the blast furnace;
the fourth cold water wall (40), the fifth cold water wall (50) and the sixth cold water wall (60) in the plurality of cooling units form a 11 th layer cold water wall on the upper part of the blast furnace;
and the seventh cold water wall (70), the eighth cold water wall (80) and the ninth cold water wall (90) in the plurality of cooling units form a 10 th layer cold water wall on the upper part of the blast furnace.
2. A blast furnace for iron making that reduces heat energy loss of the blast furnace as claimed in claim 1, comprising: and 12 cooling units which are arranged at intervals along the circumferential direction of the blast furnace lining.
3. A blast furnace for iron making that reduces heat energy loss of the blast furnace as claimed in claim 1, comprising: and the first communication pipe (21) is used for communicating the first cold water wall (10) with the second cold water wall (20) through the first communication pipe (21).
4. A blast furnace for iron making that reduces heat energy loss of the blast furnace as claimed in claim 1, comprising: and the second communication pipe (31), the second cold water wall (20) and the third cold water wall (30) are communicated through the second communication pipe (31).
5. A blast furnace for iron making that reduces heat energy loss of the blast furnace as claimed in claim 1, comprising: and the third communication pipe (41), the third cold water wall (30) and the fourth cold water wall (40) are communicated through the third communication pipe (41).
6. A blast furnace for iron making that reduces heat energy loss of the blast furnace as claimed in claim 1, comprising: and the fourth communication pipe (51), the fourth cold water wall (40) and the fifth cold water wall (50) are communicated through the fourth communication pipe (51).
7. A blast furnace for iron making that reduces heat energy loss of the blast furnace as claimed in claim 1, comprising: and the fifth communication pipe (61), the fifth cold water wall (50) and the sixth cold water wall (60) are communicated through the fifth communication pipe (61).
8. A blast furnace for iron making that reduces heat energy loss of the blast furnace as claimed in claim 1, comprising: and the fifth communication pipe (61), the fifth cold water wall (50) and the sixth cold water wall (60) are communicated through the fifth communication pipe (61).
9. A blast furnace for iron making that reduces heat energy loss of the blast furnace as claimed in claim 1, comprising: and the seventh communication pipe (81), the seventh cold water wall (70) and the eighth cold water wall (80) are communicated through the seventh communication pipe (81).
10. A blast furnace for iron making that reduces heat energy loss of the blast furnace as claimed in claim 1, comprising: and the eighth communication pipe (91), the eighth cold water wall (80) and the ninth cold water wall (90) are communicated through the eighth communication pipe (91).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021597307.1U CN213012932U (en) | 2020-08-04 | 2020-08-04 | Blast furnace for iron making with reduced heat energy loss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021597307.1U CN213012932U (en) | 2020-08-04 | 2020-08-04 | Blast furnace for iron making with reduced heat energy loss |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213012932U true CN213012932U (en) | 2021-04-20 |
Family
ID=75462689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021597307.1U Active CN213012932U (en) | 2020-08-04 | 2020-08-04 | Blast furnace for iron making with reduced heat energy loss |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213012932U (en) |
-
2020
- 2020-08-04 CN CN202021597307.1U patent/CN213012932U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105177203B (en) | Cooling wall of blast furnace and manufacturing method thereof | |
| CN202329207U (en) | Detachable cooling sleeve device and horizontal type converter | |
| CN107779531B (en) | A kind of blast oven method | |
| CN104152618B (en) | Blast-furnace soft water cooling line control method | |
| CN101550462A (en) | Method for preparing water cooling system of blast furnace cooling wall | |
| CN213012932U (en) | Blast furnace for iron making with reduced heat energy loss | |
| CN105368995B (en) | A kind of furnace charge method of replacing under blast furnace accident | |
| CN204918636U (en) | Cooling wall of blast furnace | |
| CN112280927A (en) | Operation method for baking scrap steel in converter | |
| CN205300256U (en) | Metallurgical stove brickwork structure | |
| CN207552356U (en) | A kind of Iron Works cooling body | |
| CN207655905U (en) | Online baking equipment of hot metal bottle | |
| CN2869028Y (en) | Ball type hot-blast stove for 250M above blast furnace | |
| CN207418792U (en) | A kind of blast furnace roof thermal imaging device | |
| CN103882169B (en) | Method for improving cooling efficiency of blast furnace hearth | |
| CN101693931A (en) | Cooling device at tuyere part of blast furnace | |
| CN203258993U (en) | Chute supporting structure of sinter cooling furnace | |
| CN201560196U (en) | Blast-furnace novel tuyere-belt cooling wall | |
| CN103418781A (en) | Haul multi-modal steel ladle roasting furnace kiln | |
| CN212199310U (en) | Furnace wall structure of blast furnace hearth | |
| CN207741572U (en) | A kind of upright cooling furnace bottom of sinter multicell goes out formula feeding system | |
| CN201665685U (en) | Cooling system for steel brick soft water of blast furnace throat | |
| CN2934246Y (en) | Structure improvement for combination place of blast furnace tuyere belt and furnace abdominal belt | |
| CN214142416U (en) | Civil engineering construction high-stability furnace foundation structure of smelting blast furnace | |
| CN214830447U (en) | Temporary cooling and purging device for hot air outlet furnace shell of hot blast stove |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |