CN105950809B - A kind of cooling water recirculation system for blast furnace cooler hot test - Google Patents
A kind of cooling water recirculation system for blast furnace cooler hot test Download PDFInfo
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- CN105950809B CN105950809B CN201610463450.3A CN201610463450A CN105950809B CN 105950809 B CN105950809 B CN 105950809B CN 201610463450 A CN201610463450 A CN 201610463450A CN 105950809 B CN105950809 B CN 105950809B
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- water
- cooling
- blast furnace
- hot test
- cooler
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Classifications
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/10—Cooling; Devices therefor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/24—Test rods or other checking devices
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/02—Non-contaminated water, e.g. for industrial water supply
- C02F2103/023—Water in cooling circuits
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/08—Corrosion inhibition
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
- C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
- C02F5/14—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing phosphorus
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The present invention provides a kind of cooling water recirculation system for blast furnace cooler hot test, belongs to technical field of blast furnace ironmaking.The system includes small three parts of set system in cooling wall system, water circulation system and air port.The hot test of hot test, tuyere medium sleeve, the hot test of tuyere small sleeve respectively for blast furnace cooling stave devise three pipe-line systems, and the water pipe size of every pipe-line system is consistent with cooler in practical application in industry.Every pipe-line system all devises water pump, flow control valve, pressure transmitter, electromagnetic flowmeter, temperature measurement device, can be accurately controlled and gather parameter of the blast furnace cooler during hot test.The system can ensure stabilization, the stabilization of cooler inflow temperature of cooling water quality during hot test, and can accurately measure cooler disengaging coolant-temperature gage, water-carrying capacity and water speed, be consistent with blast furnace cooler practical application in industry operating mode.
Description
Technical field
The present invention relates to technical field of blast furnace ironmaking, particularly relates to a kind of cooling water for blast furnace cooler hot test
The circulatory system.
Background technology
The life of the blast furnace and body of heater cooling device are closely bound up, improve the life-span of body of heater cooling device and turn into prolonging campaign technology
The key link of development.Blast furnace cooling stave, tuyere medium sleeve, tuyere small sleeve are the important cooling devices of blast furnace.In blast furnace cold
But small in cooling wall and air port different works are enclosed on, it is necessary to be grasped by numerical simulation in the design process of small set in wall and air port
Thermo parameters method, Stress Field Distribution and deformation situation under the conditions of condition.And hot test can verify the reliable of numerical simulation
Property, so as to provide guidance for the design of small set in cooling wall and air port.Therefore, hot test is for blast furnace cooling stave, air port
The design and use of medium and small set are significant.
, it is necessary to which continual logical cooling water cools down to cooler, therefore during blast furnace cooler hot test
Cooling water recirculation system must be designed, meets the needs of blast furnace cooler hot test.In addition, can in order to ensure hot test
By property, in cooling water recirculation system the size of water pipe, cooling water flow, cooling water water speed, cooling water quality should and blast furnace cold
But device practical application in industry operating mode is consistent.
For the cooling water recirculation system of blast furnace cooler hot test, existing four are Changshu burner factory, Shan respectively
Metallurgical equipment limited company of head Huaxing, Hebei Tianyu Gaoke Metallurgy Casting Co., Ltd. and Hebei Wan Feng metallurgy components are limited
Company.Wherein only for the hot test of blast furnace cooling stave, Hebei Wan Feng metallurgy components have the cooling water recirculation system of first three
The cooling water recirculation system of limit company is for the hot test of blast furnace cooling stave and tuyere small sleeve, and there is presently no blast furnace cooling
The cooling water recirculation system that wall, tuyere medium sleeve, tuyere small sleeve hot test are all suitable for.In addition, for cooling water recirculation system
Design, does not account for influence of the cooling water quality for the circulatory system, and cooler inflow temperature is not during hot test
Stabilization, temperature survey, flow measurement and control accuracy be not high.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of cooling water circulation system for blast furnace cooler hot test
System.
The system includes small set system in cooling wall system, water circulation system and air port, and water circulation system passes through water pipe point
Do not connected in cooling wall system with small set system in air port, small set system includes tuyere medium sleeve and tuyere small sleeve in air port；Wherein,
Water circulation system includes main water box, circulating water strainer, aerial cooler and automatic medicine-feeding device for circulating water, circulating water strainer
Main water box recirculated water porch is arranged on, aerial cooler and automatic medicine-feeding device for circulating water are directly connected with main water box；Main water
Water in case is pumped by water pump, by flow control valve, pressure transmitter, electromagnetic flowmeter and temperature measurement device, extremely
Cool down small set system in wall system and air port；After small set system carries out heat exchange in cooling water and cooling wall system and air port,
Outlet conduit is reached, then water return pipeline is reached by temperature measurement device, pressure transmitter, master is returned by following bad water filter
Water tank.
Three pipe-line systems of the system design, respectively for the hot examination of cooling wall system, tuyere medium sleeve, tuyere small sleeve
Test.In three pipe-line systems, the water-carrying capacity of each water pipe, water flow velocity, hydraulic pressure are both designed as controllable.Cool down in wall system
Return pipe is devised, triple valve is devised in two water pipes of cooling wall system.
Automatic medicine-feeding device for circulating water by Automatic Dosing switch board to corrosion inhibiting and descaling agent add, sterilizing and algae-removing agent addition and
Water quality on-line monitoring module is controlled, and the specific formula of corrosion inhibiting and descaling agent is：
Scale inhibition formula：HEDP+HPMA+PAAS=3mg/L+2mg/L+2mg/L；
Corrosion inhibition formula：HEDP+HPMA+PAAS=3mg/L+2mg/L+2mg/L；
Wherein：HEDP represents 1-hydroxy ethylidene-1,1-diphosphonic acid；HPMA represents HPMA；PAAS represents polyacrylic acid
Sodium.
Along water (flow) direction in circulating water strainer, by-pass filtration net and secondary filtration net are set gradually, in by-pass filtration net
With the top of secondary filtration net, impulsive compressional air purge set is set, in the lower section of by-pass filtration net and secondary filtration net,
Waste residue remover is set.
Main water box monitors cooling water temperature in real time by fixed infrared temperature detector.
The above-mentioned technical proposal of the present invention has the beneficial effect that：
1st, cooling water recirculation system devises water treatment scheme.Ensure that blast furnace cooler is cold during hot test
But the stabilization of water quality, blast furnace cooler pipeline scale, corrosion during hot test is avoided, influences to conduct heat.
2nd, cooling water recirculation system devises three pipe-line systems, small for blast furnace cooling stave, tuyere medium sleeve, air port respectively
The hot test of set.In blast furnace cooling stave, tuyere medium sleeve, tuyere small sleeve practical application in industry, water pipe size and water-carrying capacity, water
The parameters such as speed are had differences, and the control of parameter during hot test can be made closer to actual industrial by separately designing three pipelines
Using ensureing the reliability of hot test.In addition, for three pipe-line systems, the water-carrying capacity of each water pipe, water flow velocity, water
Pressure is controllable type, is easy to precise and stable control parameter during Thermal-state test.
3rd, cooling water recirculation system devises stability monitoring main water box temperature scenario.Blast furnace cold during guarantee hot test
But device inflow temperature is stable, improves the degree of accuracy of hot test.
4th, cooling water recirculation system devises accurate data acquisition plan.Ensure accurate collection hot test in time
Data in journey.
Brief description of the drawings
Fig. 1 is the cooling water recirculation system structural representation for blast furnace cooler hot test of the present invention；
Fig. 2 is the automatic medicine-feeding device for circulating water cut-away view of the present invention；
Fig. 3 is the circulating water strainer structural representation of the present invention；
Fig. 4 is the main water box fixed infrared temperature detector cut-away view of the present invention.
Wherein：1- cools down wall system；2- water circulation systems；Small set system in 3- air ports；4- tuyere small sleeves；In 5- air ports
Set；6- main water box；7- circulating water strainers；8- aerial coolers；9- automatic medicine-feeding device for circulating water；10- water pumps；11- flows
Control valve；12- pressure transmitters；13- electromagnetic flowmeters；14- temperature measurement devices；15- triple valves；16- by-pass filtration nets；
17- secondary filtration nets；18- compressed air blowing cleaners；19- waste residue removers.
Embodiment
To make the technical problem to be solved in the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and tool
Body embodiment is described in detail.
The present invention provides a kind of cooling water recirculation system for blast furnace cooler hot test.
As shown in figure 1, the system includes small set system 3 in cooling wall system 1, water circulation system 2 and air port, water circulation system
System 2 is connected by water pipe respectively at small set system 3 in cooling wall system 1 and air port, and small set system 3 includes tuyere medium sleeve in air port
5 and tuyere small sleeve 4；Wherein, water circulation system 2 includes main water box 6, circulating water strainer 7, aerial cooler 8 and recirculated water certainly
Dynamic chemicals dosing plant 9, circulating water strainer 7 are arranged on the recirculated water porch of main water box 6, and aerial cooler 8 and recirculated water add automatically
Medicine device 9 is directly connected with main water box 6；Water in main water box 6 is pumped by water pump 10, by flow control valve 11, pressure
Transmitter 12, electromagnetic flowmeter 13 and temperature measurement device 14, the small set system 3 into cooling wall system 1 and air port；Cooling water with
Cool down after small set system 3 carries out heat exchange in wall system 1 and air port, reach outlet conduit, then by temperature measurement device 14,
Pressure transmitter 12 reaches water return pipeline, and main water box 6 is returned by following bad water filter 7.
The system respectively for the hot test of blast furnace cooling stave, the hot test of tuyere medium sleeve, tuyere small sleeve it is hot
Experimental design three pipe-line systems, the water pipe size of every pipe-line system keep one with cooler in practical application in industry
Cause.Every pipe-line system all devises water pump 10, flow control valve 11, pressure transmitter 12, electromagnetic flowmeter 13, water temperature and surveyed
Device 14 is measured, can be accurately controlled and gather parameter of the blast furnace cooler during hot test.Wherein, it is control evenly
The water-carrying capacity of four water pipes of cooling wall processed, return pipe is devised in cooling wall pipeline；The shape of cooling wall when being cut off the water supply for analog blast furnace
Condition, triple valve 15 is devised in two water pipes of cooling wall, to avoid the excessive damage of steam pressure during hot test cold
But wall.In water circulation system 2, to ensure the stabilization of water quality, the reagent combination of processing cooling water is devised, and pass through recirculated water
Automatic medicine adding apparatus 9 adds, and devises circulating water strainer 7 in the main pipe rail of water circulation system 2.In addition, to ensure cooling
The stabilization of device inflow temperature during hot test, devise aerial cooler 8 and the water in main water box 6 is cooled down, and
Cooling water temperature is monitored by fixed infrared temperature detector in real time.
As shown in Fig. 2 for the stabilization of water quality during guarantee hot test, it is as follows to devise dosing formula：
Scale inhibition formula：HEDP+HPMA+PAAS=3mg/L+2mg/L+2mg/L；
Corrosion inhibition formula：HEDP+HPMA+PAAS=3mg/L+2mg/L+2mg/L；
Wherein：HEDP represents 1-hydroxy ethylidene-1,1-diphosphonic acid；HPMA represents HPMA；PAAS represents polyacrylic acid
Sodium.
For dosing formula, automatic medicine-feeding device for circulating water 9 is devised.Automatic medicine-feeding device for circulating water 9 includes internal slow
Antisludging agent addition, sterilizing and algae-removing agent addition and water quality on-line monitoring module are lost, is controlled by Automatic Dosing switch board, can be with
When detect water quality situation during hot test, and according to water quality situation Automatic Dosing.
As shown in figure 3, set gradually by-pass filtration net 16 and secondary filtration net along water (flow) direction in circulating water strainer 7
17, so as to which contaminant filter be fallen, in the top of by-pass filtration net 16 and secondary filtration net 17, impulsive compressional air purging is set
Device 18, the impurity on screen pack can be regularly purged, in the lower section of by-pass filtration net 16 and secondary filtration net 17, set waste residue to arrange
Except device 19, waste residue is periodically excluded.
As shown in figure 4, the present invention includes main water box fixed infrared temperature detector internal structure.It include infrared emitting,
Sensor, microprocessor and digital display module, the temperature of main water box can be monitored in real time, ensure blast furnace cooler hot test
Reliability.
Described above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, on the premise of principle of the present invention is not departed from, some improvements and modifications can also be made, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (2)
- A kind of 1. cooling water recirculation system for blast furnace cooler hot test, it is characterised in that：Including cooling down wall system (1), small set system (3) in water circulation system (2) and air port, water circulation system (2) by water pipe respectively with cooling wall system (1) Connected with small set system (3) in air port, small set system (3) includes tuyere medium sleeve (5) and tuyere small sleeve (4) in air port；Wherein, water The circulatory system (2) includes main water box (6), circulating water strainer (7), aerial cooler (8) and automatic medicine-feeding device for circulating water (9), circulating water strainer (7) is arranged on main water box (6) recirculated water porch, aerial cooler (8) and recirculated water Automatic Dosing Device (9) is directly connected with main water box (6)；Water in main water box (6) is pumped by water pump (10), by flow control valve (11), pressure transmitter (12), electromagnetic flowmeter (13) and temperature measurement device (14), into cooling wall system (1) and air port Small set system (3)；Cooling water is with after small set system (3) progress heat exchange in cooling wall system (1) and air port, reaching outlet pipe Road, then water return pipeline is reached by temperature measurement device (14), pressure transmitter (12), returned by circulating water strainer (7) Main water box (6)；Return pipe is devised in the cooling wall system (1), triple valve is devised in two water pipes of cooling wall system (1) (15)；Along water (flow) direction in the circulating water strainer (7), by-pass filtration net (16) and secondary filtration net (17) are set gradually, The top of by-pass filtration net (16) and secondary filtration net (17), impulsive compressional air purge set (18) is set, in one-level mistake The lower section of filter screen (16) and secondary filtration net (17), waste residue remover (19) is set；The main water box (6) monitors cooling water temperature, main water box (6) top design air in real time by fixed infrared temperature detector Cooler (8) carries out cooling treatment to recirculated water.
- 2. the cooling water recirculation system according to claim 1 for blast furnace cooler hot test, it is characterised in that：Institute Automatic medicine-feeding device for circulating water (9) is stated by Automatic Dosing switch board to corrosion inhibiting and descaling agent addition, sterilizing and algae-removing agent addition and water Matter on-line monitoring module is controlled, and the specific formula of corrosion inhibiting and descaling agent is：Scale inhibition formula：HEDP+HPMA+PAAS=3mg/L+2mg/L+2mg/L；Corrosion inhibition formula：HEDP+HPMA+PAAS=3mg/L+2mg/L+2mg/L；Wherein：HEDP represents 1-hydroxy ethylidene-1,1-diphosphonic acid；HPMA represents HPMA；PAAS represents Sodium Polyacrylate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610463450.3A CN105950809B (en) | 2016-06-23 | 2016-06-23 | A kind of cooling water recirculation system for blast furnace cooler hot test |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610463450.3A CN105950809B (en) | 2016-06-23 | 2016-06-23 | A kind of cooling water recirculation system for blast furnace cooler hot test |
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| Publication Number | Publication Date |
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| CN105950809A CN105950809A (en) | 2016-09-21 |
| CN105950809B true CN105950809B (en) | 2017-12-08 |
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| CN112597606B (en) * | 2020-12-18 | 2022-08-19 | 上海大学 | Design method of gradient coating of blast furnace tuyere small sleeve |
Citations (4)
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| CN202272889U (en) * | 2011-09-26 | 2012-06-13 | 中冶南方工程技术有限公司 | Novel combined soft water closed circulation cooling system |
| CN202440524U (en) * | 2012-01-06 | 2012-09-19 | 中冶东方工程技术有限公司 | Improved closed-circulation cooling water system for blast furnace |
| CN204251637U (en) * | 2014-12-09 | 2015-04-08 | 郎达慧 | A kind of ironmaking tuyere small sleeve long lifetime device |
| CN204630404U (en) * | 2015-04-28 | 2015-09-09 | 李正福 | A kind of device utilizing sintering low temperature waste heat to cool circulation water of blast furnace |
-
2016
- 2016-06-23 CN CN201610463450.3A patent/CN105950809B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202272889U (en) * | 2011-09-26 | 2012-06-13 | 中冶南方工程技术有限公司 | Novel combined soft water closed circulation cooling system |
| CN202440524U (en) * | 2012-01-06 | 2012-09-19 | 中冶东方工程技术有限公司 | Improved closed-circulation cooling water system for blast furnace |
| CN204251637U (en) * | 2014-12-09 | 2015-04-08 | 郎达慧 | A kind of ironmaking tuyere small sleeve long lifetime device |
| CN204630404U (en) * | 2015-04-28 | 2015-09-09 | 李正福 | A kind of device utilizing sintering low temperature waste heat to cool circulation water of blast furnace |
Non-Patent Citations (2)
| Title |
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| 球墨铸铁冷却壁热态试验研究;左海滨等;《2014年全国炼铁生产技术会暨炼铁学术年会文集（下）》;20140513;第968-973页 * |
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