CN109439823B - Cooling device for blast furnace top distributor - Google Patents
Cooling device for blast furnace top distributor Download PDFInfo
- Publication number
- CN109439823B CN109439823B CN201910027270.4A CN201910027270A CN109439823B CN 109439823 B CN109439823 B CN 109439823B CN 201910027270 A CN201910027270 A CN 201910027270A CN 109439823 B CN109439823 B CN 109439823B
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- pipeline
- cooling
- distributor
- valve
- distributing device
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- 238000001816 cooling Methods 0.000 title claims abstract description 62
- 239000007789 gas Substances 0.000 claims abstract description 71
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 46
- 239000000498 cooling water Substances 0.000 claims description 40
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 34
- 238000007789 sealing Methods 0.000 claims description 19
- 229910052757 nitrogen Inorganic materials 0.000 claims description 17
- 230000007246 mechanism Effects 0.000 claims description 9
- 230000001502 supplementing effect Effects 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 4
- 239000000110 cooling liquid Substances 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 abstract description 5
- 239000000112 cooling gas Substances 0.000 abstract description 4
- 239000010865 sewage Substances 0.000 description 9
- 230000003020 moisturizing effect Effects 0.000 description 6
- 230000002159 abnormal effect Effects 0.000 description 5
- 239000000428 dust Substances 0.000 description 4
- 239000002826 coolant Substances 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 210000000476 body water Anatomy 0.000 description 2
- 239000003034 coal gas Substances 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/10—Cooling; Devices therefor
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention relates to the technical field of metallurgical industry, in particular to a cooling device for a blast furnace top distributor. The cooling system is externally arranged on the distributing device and is connected with the distributing device through a gas circulation pipeline, and hot gas in the distributing device is cooled by the cooling system and then returns to the distributing device. The beneficial effects of the invention are as follows: the cooling system is provided with the outside of the distributor, so that cooling liquid cannot enter the distributor, the situation that cooling liquid overflows into the furnace is avoided, and the cooling gas is recycled by being matched with the gas circulation pipeline, so that the cooling effect of the distributor is ensured, and the stable operation of the blast furnace is ensured.
Description
Technical Field
The invention relates to the technical field of metallurgical industry, in particular to a cooling device for a blast furnace top distributor.
Background
With the improvement of the requirements of the blast furnace smelting process, the blast furnace is basically provided with a bell-less top charging device when a blast furnace is newly built or newly built in various countries around the world. In China, the common knowledge is formed in the iron-making industry, blast furnaces put into production in the last ten years almost adopt bell-less top charging equipment, and a distributor is one of key equipment of the bell-less top, so that the cooling performance of the blast furnaces is very important. At present, the cooling modes of the distributing device used at home and abroad are mainly divided into two types, one type is a closed-loop circulating cooling system provided with a furnace top water cooling station, and the other type is a water flow natural cooling open-loop cooling system. The cooling mode of the distributing device adopts cooling water as a medium, and is generally sealed by adopting nitrogen in order to reduce the entering of furnace dust into the distributing device. The distributor adopting cooling water as a cooling mode is adopted, and because the cooling water contacts with coal gas in the distributor, when a cooling water system breaks down or dust deposition in a water tank in the distributor is serious, the cooling water overflows the water tank of the distributor and enters the furnace through a circular seam, thereby causing the accidents of abnormal furnace conditions, even furnace cooling, damping down and the like.
Disclosure of Invention
In view of the above drawbacks of the prior art, an object of the present invention is to provide a cooling device for a blast furnace top distributor, which is used for solving the problems of easy overflow of cooling water from a distributor trough, poor stability of a distributor cooling system, high failure rate, and the like in the prior art.
In order to achieve the above and other related objects, the present invention provides a blast furnace top distributor cooling device, comprising a distributor, an air supply system for supplying air to the distributor, and a cooling system for cooling air flowing out of the distributor, wherein the cooling system is externally arranged on the distributor and is connected with the distributor through an air circulation pipeline, and hot air in the distributor returns to the distributor after being cooled by the cooling system.
The beneficial effects of the invention are as follows: the cooling system is provided with the outside of the distributor, so that cooling liquid cannot enter the distributor, the situation that cooling liquid overflows into the furnace is avoided, and the cooling gas is recycled by being matched with the gas circulation pipeline, so that the cooling effect of the distributor is ensured, and the stable operation of the blast furnace is ensured.
Further, the inlet end of the gas circulation pipeline is connected with the air outlet of the distributing device, the outlet end of the gas circulation pipeline is connected with the air inlet of the distributing device, the gas circulation pipeline is provided with a circulating fan and a diffusing pipeline, and the diffusing pipeline is provided with a diffusing valve.
Further, the circulating fan is a variable frequency fan, a bearing temperature detection system and a shaft sealing system are arranged on the circulating fan, the shaft sealing system comprises a sealing pipeline for introducing gas, and a first valve, a filter, a pressure gauge and a pressure reducing valve are arranged on the sealing pipeline.
Further, the inlet end of the gas circulation pipeline is provided with at least one inlet branch pipe used for being connected with the distributing device, and the outlet end of the gas circulation pipeline is provided with at least one outlet branch pipe used for being connected with the distributing device.
The beneficial effects of adopting the further scheme are as follows: the variable frequency fan is adopted, so that the circulating air quantity and the rotating speed can be conveniently adjusted according to the requirements; the bearing temperature detection system is arranged to monitor the temperature of the circulating fan in real time, and if the temperature is abnormal, the operation or maintenance is stopped in time; the bearing sealing system is arranged, so that the gas in the gas circulation pipeline is effectively prevented from leaking, on one hand, the gas waste is avoided, and on the other hand, even a small amount of gas is entrained in the gas circulation pipeline, the gas can not leak, and the safety performance is improved; the gas circulation pipeline is provided with a plurality of inlet branch pipes and outlet branch pipes, so that the installation requirements of different distributing devices can be met conveniently.
Further, the cooling system comprises a heat exchanger arranged at the inlet end of the gas circulation pipeline and a cooling water device for cooling the heat exchanger, the cooling water device comprises a closed water tank, a water supplementing main pipeline is connected to the closed water tank, the closed water tank is connected with the heat exchanger through a cooling water inlet pipeline, and the heat exchanger discharges cooling water through a cooling water discharge pipeline.
Further, the furnace body water draining tank further comprises a discharging main pipe, an overflow pipeline and a sewage draining pipeline, wherein a water level gauge is arranged on the closed water tank, and the outlet ends of the overflow pipeline, the sewage draining pipeline and the cooling water discharging pipeline are all connected with the discharging main pipe and are used for introducing discharged matters into the furnace body water draining tank.
Further, be equipped with the bypass line on the moisturizing is responsible for the road, the both ends of bypass line all are connected with the moisturizing main line, be equipped with first manual valve on the bypass line, be equipped with on the moisturizing is responsible for the road with parallelly connected second manual valve and the third manual valve of first manual valve, be equipped with pneumatic valve between second manual valve and the third manual valve.
Further, a heat exchanger outlet valve and a gas leakage detector are arranged on the cooling water discharge pipeline.
The beneficial effects of adopting the further scheme are as follows: and each pipeline is simple and compact in connection layout, and stable operation and safety performance of the cooling system are guaranteed.
Further, the air supply system comprises an air supply pipeline, and a nitrogen tank, a pressure reducing valve, a flowmeter, a pressure gauge, a second valve and a compressed air mechanism are arranged on the air supply pipeline.
Further, the compressed air mechanism comprises an air pipeline for introducing air, two third valves are arranged on the air pipeline, and a quick-change connector is arranged on the air pipeline between the two third valves.
The beneficial effects of adopting the further scheme are as follows: the air supply system provides a cooling medium for the distributor, nitrogen cooling is adopted, the condition that cooling liquid overflows into the furnace to generate abnormal furnace conditions is effectively avoided, meanwhile, the nitrogen cooling can be recycled, the energy consumption is saved, and furnace dust and coal gas in the blast furnace can be prevented from entering the distributor through the nitrogen cooling, so that a sealing effect is achieved; the compressed air mechanism is arranged, so that a safe overhaul environment is conveniently provided for overhaul personnel, and the safety performance is improved.
Drawings
Fig. 1 is a schematic view showing a structure of a blast furnace top distributor cooling apparatus according to an embodiment of the present invention.
Description of the part reference numerals
1. A distributing device;
21. a gas circulation line;
22. a circulating fan;
23. a bleeding pipeline;
231. a bleed valve;
24. 25, 26, 27 fourth valves;
28. a pressure gauge;
31. sealing the pipeline;
32. a first valve;
33. a filter;
34. 35 manometer;
36. a pressure reducing valve;
41. a heat exchanger;
42. a closed water tank;
421. a water level gauge;
43. a water supplementing main pipeline;
431. a second manual valve;
432. a third manual valve;
433. a pneumatic valve;
44. cooling water enters the pipeline;
441. a fifth valve;
442. a flow meter;
45. a cooling water discharge line;
451. an outlet valve of the heat exchanger;
452. a gas leakage detector;
46. a discharge header;
47. an overflow line;
48. a sewage discharge pipeline;
481. a blow-down valve;
49. a bypass line;
491. a first manual valve;
51. an air supply line;
52. a nitrogen tank;
53. a pressure reducing valve;
54. a flow meter;
55. a 56 manometer;
57. 58 a second valve;
61 an air line;
62. 63 a third valve;
64. a quick-change joint;
7. a furnace body drainage groove.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention.
The terms such as "upper", "lower", "left", "right", "middle" and "a" and the like are also used in the present specification for convenience of description, but are not intended to limit the scope of the present invention, and the relative changes or modifications thereof are not limited to essential changes in technical content, but are also regarded as the scope of the present invention.
Before describing embodiments of the present invention in detail, an application environment of the present invention will be described. The technology of the invention is mainly applied to the field of blast furnaces in metallurgical industry, in particular to a blast furnace distributor. The invention solves the problems that the cooling liquid enters the inside of the distributor for cooling and the cooling liquid easily overflows the water tank of the distributor, thereby causing abnormal furnace conditions, furnace cooling or damping down and the like.
As shown in fig. 1, the cooling device for the blast furnace top distributor according to the embodiment of the invention comprises a distributor 1, a gas supply system for supplying gas to the distributor 1 and a cooling system for cooling gas flowing out of the distributor, wherein the cooling system is arranged outside the distributor 1 and is connected with the distributor 1 through a gas circulation pipeline 21, and hot gas in the distributor 1 is returned to the distributor 1 after being cooled by the cooling system, so that the gas can be recycled. By adopting gas cooling, the recycling of gas can be realized, energy is saved, liquid is prevented from entering the distributor, and meanwhile, the sealing effect on the distributor is also realized, and gas in a blast furnace is prevented from entering the distributor.
As shown in fig. 1, an inlet end of a gas circulation pipeline 21 is connected with an air outlet of the distributing device 1, an outlet end of the gas circulation pipeline 21 is connected with an air inlet of the distributing device 1, and a circulation fan 22, a pressure gauge 28, a diffusing pipeline 23 and four fourth valves are arranged on the gas circulation pipeline 21. Wherein, be equipped with the bleeder valve 231 on the bleeder line 23, when the pressure value of gas circulation pipeline 21 surpasses and presets, realize the timely emission of gas through bleeder line 23 and bleeder valve 231, improve the security performance. The inlet end of the gas circulation pipeline 21 is provided with at least one inlet branch pipe used for being connected with the distributing device 1, the outlet end of the gas circulation pipeline 21 is provided with at least one outlet branch pipe used for being connected with the distributing device 1, the inlet branch pipe and the outlet branch pipe can be connected by adopting a metal hose, the connection is convenient, the quantity of the outlet branch pipe and the inlet branch pipe can be flexibly set according to the model or the installation requirement of the distributing device, and the application range is wide. One of the fourth valves 24 is arranged at the inlet end of the gas circulation pipeline 21, the other fourth valve 27 is arranged at the outlet end of the gas circulation pipeline 21, the circulating fan 22 is arranged between the fourth valve 25 and the fourth valve 26, at least one circulating fan 22 is arranged, the quantity of the circulating fans can be selected according to the requirement so as to be reserved, and the fourth valve can be a butterfly valve. The circulating fan 22 is a variable frequency fan, a bearing temperature detection system and a shaft sealing system are arranged on the circulating fan 22, the shaft sealing system comprises a sealing pipeline 31 for introducing gas, a first valve 32, a filter 33, a pressure gauge and a pressure reducing valve 36 are arranged on the sealing pipeline, wherein the first valve 32 can be a manual valve, the pressure gauge is provided with two pressure gauges, and the pressure reducing valve 36 is arranged between the pressure gauge 34 and the pressure gauge 35.
As shown in fig. 1, the cooling system includes a discharge header 46, a heat exchanger 41 installed at an inlet end of the gas circulation line 21, and a cooling water device for cooling the heat exchanger 41, the heat exchanger 41 being installed on the gas circulation line 21 such that the gas in the gas circulation line 21 is cooled by the heat exchanger 41. The heat exchanger 41 may be selected according to the specific environment and installation, and in this embodiment, a horizontal tank type gas heat exchanger is preferably used. The cooling water device comprises a closed water tank 42, a water inlet at the top of the closed water tank 42 is connected with a water supplementing main pipeline 43, a water outlet at the lower part of the closed water tank 42 is connected with a heat exchanger 41 through a cooling water inlet pipeline 44, a fifth valve 441 and a flowmeter 442 are arranged on the cooling water inlet pipeline 44, and the fifth valve 441 can be a manual valve. The water level meter 421 is arranged on the closed water tank 42, the overflow pipeline 47 is arranged at the upper part of the closed water tank 42, when the cooling liquid in the closed water tank 42 is excessive, the cooling liquid is discharged through the overflow pipeline 47, the drain outlet at the bottom of the closed water tank 42 is provided with the sewage drain pipeline 48, the periodic sewage cleaning of the closed water tank 42 is realized through the sewage drain pipeline 48, the sewage drain pipeline 48 is provided with the sewage drain valve 481, and the sewage drain valve 481 can adopt a manual valve. The heat exchanger 41 discharges cooling water through the cooling water discharge pipeline 45, a heat exchanger outlet valve 451 and a gas leakage detector 452 are arranged on the cooling water discharge pipeline 45, whether gas leakage exists or not is monitored through the gas leakage detector 452, safety performance is improved, and the heat exchanger outlet valve 451 can adopt a manual valve. The outlet ends of the overflow line 47, the drain line 48 and the cooling water discharge line 45 are connected to a discharge main line 46, and the discharge is introduced into the furnace body drain tank 7 through the discharge main line 46, thereby realizing the concentrated discharge of the discharge. In addition, be equipped with bypass line 49 on the moisturizing main line 43, the both ends of bypass line 49 all are connected with moisturizing main line 43, be equipped with first manual valve 491 on the bypass line 49, be equipped with on the moisturizing main line 43 with the parallelly connected second manual valve 431 of first manual valve 491 and third manual valve 432, be equipped with pneumatic valve 433 between second manual valve 431 and the third manual valve 432, through setting up the bypass line, be convenient for pneumatic valve also can guarantee the supply of coolant liquid when breaking down, improve cooling performance's stability. When the water level of the closed water tank 42 is reduced to a certain value, the external control system sends out a command to open the pneumatic valve 433 to replenish water into the closed water tank 42.
As shown in fig. 1, the air supply system includes an air supply line 51, and a nitrogen tank 52, a pressure reducing valve 53, a flow meter 54, a pressure gauge, a second valve, and a compressed air mechanism are provided on the air supply line 51. Wherein, the second valve is provided with two, and the second valve can be manual valve, and second valve 57 and second valve 58 set up the both ends at air feed line 51, and the manometer also is provided with two, and relief pressure valve 53 sets up between manometer 56 and manometer 55. The nitrogen is used for cooling the distributor 1, so that on one hand, the running stability of the blast furnace is improved, on the other hand, the recycling of cooling gas is realized, and the energy consumption is saved. The compressed air mechanism comprises an air pipeline 61 for introducing air, two third valves are arranged on the air pipeline 61, manual valves can be adopted for the third valves, quick-change connectors 64 are arranged on the air pipeline between the third valves 62 and 63, quick-change connectors are used for realizing quick disassembly, and when maintenance is needed, air is introduced through the compressed air mechanism, so that the safety of maintenance environment is guaranteed.
The working process is as follows: firstly, a pneumatic valve 433 on a water supplementing main pipeline 43 is opened to fill water into a closed water tank 42, when the water volume in the closed water tank 42 reaches a certain value, the pneumatic valve 433 is closed, a fifth valve 441 on a cooling water inlet pipeline 44 at an outlet of the closed water tank 42 is opened, cooling water enters a water collecting tank 7 of a blast furnace body after passing through a heat exchanger 41, a flowmeter 442 is arranged in a cooling system, and the flow rate of the cooling water is 2-5 m 3 And/h. Then, the second valves 57 and 58 on the air supply pipeline 51 are opened to introduce nitrogen into the distributor 1, the nitrogen is adopted to cool the distributor 1, and the circulating fan 22 is started to circulate the nitrogenThe nitrogen is cooled by the heat exchanger 41 and then is sent into the distributor 1 again to cool the distributor, the consumption of the nitrogen can be reduced by the gas circulation cooling distributor, and the pressure in the distributor is improved by the nitrogen, so that the sealing function of preventing furnace dust and gas from entering the distributor 1 is achieved. A gas leakage detector 452 is arranged on the cooling water discharge pipeline 45 at the outlet of the heat exchanger 41, when the heat exchanger 41 leaks and gas enters the cooling water discharge pipeline 45, the gas leakage detector 452 gives an alarm, the fifth valve 441 and the heat exchanger outlet valve 451 are closed, meanwhile, the fourth valves 24 and 25 are closed, the heat exchanger 41 is overhauled and maintained, and meanwhile, the feeding amount of nitrogen is increased to cool and seal the feeding distributor 1, so that the aim that the blast furnace can continue to stably run even if the heat exchanger is maintained is fulfilled; or when the pressure in the distributor is lower than the set value or the pressure at the top of the blast furnace is increased, the cooling and sealing effects can be realized by increasing the amount of nitrogen supplied by the air supply pipeline 51. When the distributor 1 needs to be overhauled and maintained, in order to ensure the safety of operators, the gas circulation pipeline is closed at first, the gas supply system is closed after a certain time, the quick-change connector 64 on the air pipeline 61 of the compressed air mechanism is connected, the third valves 62 and 63 are opened to introduce compressed air into the distributor 1, and after purging is finished, the access door of the distributor 1 can be opened to overhaul and maintain the distributor 1.
The invention adopts the cooling water to cool the cooling medium of the distributor outside the distributor, namely the distributor adopts the form of gas cooling and gas sealing, and because the cooling water does not enter the distributor, the accident of abnormal furnace condition caused by overflow of the cooling water into the furnace is avoided, and the invention has the advantages of good cooling effect, stable and reliable operation, safety and the like.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (9)
1. A blast furnace roof distributing device cooling device is characterized in that: the cooling system is externally arranged on the distributing device and is connected with the distributing device through a gas circulation pipeline, a circulating fan and a fourth valve are arranged on the gas circulation pipeline, and hot gas in the distributing device returns to the distributing device after being cooled by the cooling system;
a shaft sealing system is arranged on the circulating fan and comprises a sealing pipeline for introducing gas;
the cooling system comprises a heat exchanger arranged at the inlet end of a gas circulation pipeline and a cooling water device for cooling the heat exchanger, the cooling water device comprises a closed water tank, the closed water tank is connected with a water supplementing main pipeline, the closed water tank is connected with the heat exchanger through a cooling water inlet pipeline, a fifth valve is arranged on the cooling water inlet pipeline, the heat exchanger discharges cooling water through a cooling water discharge pipeline, and a gas leakage detector for detecting whether the heat exchanger leaks or not is arranged on the cooling water discharge pipeline;
the air supply system comprises an air supply pipeline, wherein a compressed air mechanism is arranged on the air supply pipeline, and the compressed air mechanism comprises an air pipeline for introducing air;
when the heat exchanger leaks, closing the fifth valve and the two fourth valves between the air outlet of the distributing device and the circulating fan, introducing gas through the sealing pipeline, and simultaneously increasing the nitrogen amount supplied by the gas supply pipeline to cool and seal the distributing device; when the distributor is required to be overhauled, the gas circulation pipeline is closed, the gas supply system is closed, and compressed air is introduced into the distributor through the air pipeline.
2. A blast furnace roof distributor cooling apparatus according to claim 1, wherein: the inlet end of the gas circulation pipeline is connected with the air outlet of the distributing device, the outlet end of the gas circulation pipeline is connected with the air inlet of the distributing device, a diffusing pipeline is arranged on the gas circulation pipeline, and a diffusing valve is arranged on the diffusing pipeline.
3. A blast furnace roof distributor cooling apparatus according to claim 1, wherein: the circulating fan is a variable frequency fan, a bearing temperature detection system is arranged on the circulating fan, and a first valve, a filter, a pressure gauge and a pressure reducing valve are arranged on the sealing pipeline.
4. A blast furnace roof distributor cooling apparatus according to claim 2, wherein: the inlet end of the gas circulation pipeline is provided with at least one inlet branch pipe used for being connected with the distributing device, and the outlet end of the gas circulation pipeline is provided with at least one outlet branch pipe used for being connected with the distributing device.
5. A blast furnace roof distributor cooling apparatus according to claim 1, wherein: the water level meter is arranged on the closed water tank, and the outlet ends of the overflow pipeline, the drain pipeline and the cooling water discharge pipeline are all connected with the main discharge pipeline and are used for introducing discharged matters into the furnace body drain tank.
6. A blast furnace roof distributor cooling apparatus according to claim 1, wherein: the water supplementing main pipeline is provided with a bypass pipeline, two ends of the bypass pipeline are connected with the water supplementing main pipeline, the bypass pipeline is provided with a first manual valve, the water supplementing main pipeline is provided with a second manual valve and a third manual valve which are connected with the first manual valve in parallel, and a pneumatic valve is arranged between the second manual valve and the third manual valve.
7. A blast furnace roof distributor cooling apparatus according to claim 1, wherein: and a heat exchanger outlet valve is arranged on the cooling water discharge pipeline.
8. A blast furnace roof distributor cooling apparatus according to claim 1, wherein: the air supply pipeline is provided with a nitrogen tank, a pressure reducing valve, a flowmeter, a pressure gauge and a second valve.
9. A blast furnace roof distributor cooling apparatus according to claim 1, wherein: two third valves are arranged on the air pipeline, and a quick-change connector is arranged on the air pipeline between the two third valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910027270.4A CN109439823B (en) | 2019-01-11 | 2019-01-11 | Cooling device for blast furnace top distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910027270.4A CN109439823B (en) | 2019-01-11 | 2019-01-11 | Cooling device for blast furnace top distributor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109439823A CN109439823A (en) | 2019-03-08 |
| CN109439823B true CN109439823B (en) | 2024-04-05 |
Family
ID=65544172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910027270.4A Active CN109439823B (en) | 2019-01-11 | 2019-01-11 | Cooling device for blast furnace top distributor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109439823B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62214111A (en) * | 1986-03-14 | 1987-09-19 | Ishikawajima Harima Heavy Ind Co Ltd | Cooling installation for furnace top charger |
| CN103255251A (en) * | 2013-06-03 | 2013-08-21 | 中冶赛迪工程技术股份有限公司 | Blast furnace top gas supply system |
| JP2013240850A (en) * | 2012-05-18 | 2013-12-05 | Manzen Koki Kk | Glove box having inert gas circulation refining apparatus |
| CN209537534U (en) * | 2019-01-11 | 2019-10-25 | 中冶赛迪工程技术股份有限公司 | A kind of blast-furnace top distributing device cooling device |
-
2019
- 2019-01-11 CN CN201910027270.4A patent/CN109439823B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62214111A (en) * | 1986-03-14 | 1987-09-19 | Ishikawajima Harima Heavy Ind Co Ltd | Cooling installation for furnace top charger |
| JP2013240850A (en) * | 2012-05-18 | 2013-12-05 | Manzen Koki Kk | Glove box having inert gas circulation refining apparatus |
| CN103255251A (en) * | 2013-06-03 | 2013-08-21 | 中冶赛迪工程技术股份有限公司 | Blast furnace top gas supply system |
| CN209537534U (en) * | 2019-01-11 | 2019-10-25 | 中冶赛迪工程技术股份有限公司 | A kind of blast-furnace top distributing device cooling device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109439823A (en) | 2019-03-08 |
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