CN106017109A - Energy-saving process of blast furnace circulating water cooling system with upper tower pumps - Google Patents
Energy-saving process of blast furnace circulating water cooling system with upper tower pumps Download PDFInfo
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- CN106017109A CN106017109A CN201610320721.XA CN201610320721A CN106017109A CN 106017109 A CN106017109 A CN 106017109A CN 201610320721 A CN201610320721 A CN 201610320721A CN 106017109 A CN106017109 A CN 106017109A
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- cooling
- water
- tower
- blast furnace
- pump
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D9/00—Cooling of furnaces or of charges therein
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C1/00—Direct-contact trickle coolers, e.g. cooling towers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D9/00—Cooling of furnaces or of charges therein
- F27D2009/0002—Cooling of furnaces
- F27D2009/001—Cooling of furnaces the cooling medium being a fluid other than a gas
- F27D2009/0013—Cooling of furnaces the cooling medium being a fluid other than a gas the fluid being water
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Blast Furnaces (AREA)
Abstract
The invention relates to an energy-saving process of a blast furnace circulating water cooling system with upper tower pumps, and belongs to the technical field of metallurgy. The technical scheme adopted by the invention is that circulating cooling water is conveyed into a blast furnace cooling device by a normal pressure pump and a high pressure pump to be cooled, the cooled circulating cooling water flows into four water collecting tanks on a blast furnace tuyere platform after temperature rise through heat exchange, flows into a hot water tank through a pipeline below the water collecting tanks, and is sent into a plurality of cooling towers through a plurality of upper tower water pumps, the mode that one pump is combined with one tower is adopted, and the circulating cooling water flows into a cold water tank after cooling through air exhausting of a fan on the cooling tower, and then is conveyed into the blast furnace cooling device through the normal pressure pump and the high pressure pump, so that an open type cooling cycle is formed. The energy-saving process has the advantages of being low in installed capacity, simple in structure, convenient to use, small in amount of maintenance, energy-saving and environment-friendly.
Description
Technical field
The present invention relates to the upper tower pump energy saving technique of a kind of circulation water of blast furnace cooling system, belong to metallurgical technology field.
Background technology
nullThe circulation water of blast furnace cooling system of existing iron and steel enterprise typically uses tower pump to add the temperature reduction technology integrated mode of cooling tower，Utilize normal pressure water pump and high-pressure hydraulic pump draw water in water cooling pond pressurization after be transported to blast furnace cooling stave、In tuyere case and furnace top equipment，Cooling water heats up after blast furnace cooling device heat exchange，First 4 header tanks of blast furnace tuyere platform are flowed into，Then hot-tub is entered after the pipe influx from header tank，On one or two platforms, tower pump promotes and is pressurized to 0.15 0.2MPa to the water-locator shower nozzle of multiple stage cooling tower again，The water of water-distribution nozzle ejection flows through cooling tower filler in dropping process，The wind extracted out with blower fan of cooling tower again produces reverse flow and carries out heat exchange，Water at low temperature after heat exchange flow to water cooling pond，By normal pressure water pump and high-pressure hydraulic pump pressurized delivered to blast furnace cooling stave、In tuyere case and furnace top equipment，Form an open type circulation.Also just the recirculated water of explanation hot-tub during tower pump pressurization entrance cooling tower, needs powerful lifting water pump and blower fan of cooling tower to lower the temperature, therefore expends substantial amounts of electric energy on one or two platforms.
Summary of the invention
It is an object of the invention to provide the upper tower pump energy saving technique of a kind of circulation water of blast furnace cooling system, simple in construction, easy to use, a little repair, energy-conserving and environment-protective, solve the problem that background technology exists.
The object of the present invention is achieved like this:
A kind of upper tower pump energy saving technique of circulation water of blast furnace cooling system, including: pump house, water cooling pond, hot-tub, header tank, water pump, cooling tower (containing blower fan).Technological process is, utilize normal pressure water pump and high-pressure hydraulic pump draw water in water cooling pond pressurization after be transported to blast furnace cooling stave, in tuyere case and furnace top equipment, cooling water heats up after blast furnace cooling device heat exchange, first 4 header tanks of blast furnace tuyere platform are flowed into, then the pipeline from header tank flows into hot-tub, the cooling tower above circulating water pool is sent into by the recirculated water after tower pump will heat up in small-power, native system uses the multiple stage integrated mode of pump one tower, blower fan convulsion heat exchange is used to flow into water cooling pond after cooling down through low pressure or the cooling tower without compress water, the most again in the equipment that blast furnace needs cooling sent back to by normal pressure pump and high-pressure pump, form an open circuit circulation.Have square hole between water cooling pond and hot-tub and equipped with communicating pipe and valve, prevent hot-tub because of on separate unit out of service tower pump cause water level to raise to overflow to the outside in pond, form water resource waste and environmental pollution.
The purpose of the present invention can also be realized by techniques below measure, recirculated cooling water is in normal pressure pump and high-pressure pump are pressed and delivered to blast furnace cooling stave, tuyere case and furnace top equipment, recirculated water flows into the pipeline under header tank in cooling device after heat exchange, can flow directly into cooling tower with obstructed overheated pond and upper tower water pump and carry out cooling down and flow into water cooling pond again.The frequent water pump of recirculated water and high-pressure hydraulic pump after cooling are transported in the cooling device of blast furnace, form an open circuit circulation, between blast furnace return main road and hot-tub, valve is installed, it is used for controlling the circulation of blast furnace backwater, blast furnace backwater is prevented to be directly entered hot-tub, cause blast furnace backwater cannot lower the temperature in flowing into cooling tower smoothly, thus cause circulating water temperature to raise, affect the normal production of blast furnace.
The invention have the advantage that installed capacity is little, simple in construction, easy to use, a little repair, energy-conserving and environment-protective.
Accompanying drawing explanation
Fig. 1 is the present invention many pump-type system schematic；
Fig. 2 is pump-free type system schematic of the present invention.
Detailed description of the invention
Flow into header tank 2 after cooling water heat exchange in blast furnace cooling device 1 to collect, hot-tub 4 is entered by the pipeline under header tank and valve 3, start in multiple stage tower water pump 6 by valve 5,7 and Pipeline transport to multiple stage cooling tower 8, and use the integrated mode of pump one tower, after the cooling of cooled tower blower fan convulsion, enter water cooling pond 9, wind and current are formed laterally or reverse flow, by valve 10,12 and pipeline, the water at low temperature in water cooling pond 9 being transported to blast furnace through water pump 11 the most again needs the equipment 1 of cooling to carry out heat exchange cooling, defines an open circuit circulation.Square hole is had and equipped with communicating pipe and valve between water cooling pond 9 and hot-tub 4, the cooling pond of pump house is installed above multiple stage cooling tower 8, blower fan is positioned at the top of cooling tower 8, nothing pressure or the water distributing tray of low pressure and shower nozzle it is provided with in cooling tower 8, the outlet of water cooling pond 9 is by pipeline and valve 10, 12, water pump 11 is connected with the import of blast furnace cooling device 1, the outlet 1 access set water tank 2 of blast furnace cooling device, hot-tub 4 is accessed through pipeline after being collected by header tank 2, the outlet of hot-tub 4 is by pipeline and valve 5, 7, water pump 6 is connected to the inside of cooling tower 8, by the cooling blower of cooling tower 8, the recirculated water after heat exchange is cooled down again, finally flow into water cooling pond 9, form an open circuit circulation cooling mode.Native system can also individually control upper tower water pump 6 and the blower fan of cooling tower 8 of start and stop list group small-sized efficient according to the size of the change of water temperature difference and circulating water flow, thus reduces the purpose of energy consumption.Square hole communicating pipe between water cooling pond 9 and hot-tub 4 and valve can be effectively ensured water pump 6 out of service after, the hot backwater of hot-tub 4 can flow into water cooling pond 9 smoothly, the water level of hot-tub 4 and water cooling pond 9 can keep balance, anti-non-return water is not smooth and overflows to the outside in pond, forms waste and the environmental pollution of water resource.
Blast furnace cooling device 1 inner cooling water flows into after header tank 2 can also obstructed overheated pond 4 and water pump 6 be directly entered in cooling tower 8 through heat exchange, first the valve 3 between header tank 2 pipeline under and hot-tub 4 is closed, the natural-drop between blast furnace header tank and cooling tower 8 is utilized to flow directly into cooling tower 8, by blower fan of cooling tower convulsion, the recirculated water after heat exchange is cooled down, water at low temperature after cooling flows in water cooling pond 9, the most again through water pump 11 by valve 10, 12 and pipeline the water at low temperature in water cooling pond 9 is transported in the cooling device 1 of blast furnace, form an open type circulation, eliminate tower water pump 6, a large amount of electric energy can be saved.Valve 3 between header tank 2 water return pipeline and hot-tub 4 below can regulate flow or closedown.Square hole communicating pipe between water cooling pond 9 and hot-tub 4 installs valve, can be effectively ensured close flow into cooling tower 8 branch back to waterpipe valve after, coordinate the use of water return pipeline valve 3, the water level of hot-tub 4 and water cooling pond 9 can keep balance, anti-non-return water is not smooth and overflows to the outside of circulating water pool, causes waste and the environmental pollution of water resource.
Claims (4)
1. the upper tower pump energy saving technique of a circulation water of blast furnace cooling system, including: pump house, water cooling pond, hot-tub, header tank, cooling tower, water pump, it is characterized in that: technological process is, the frequent press pump of recirculated cooling water and high-pressure pump are transported in blast furnace cooling device cool down, heat exchange flows into four header tanks of blast furnace tuyere platform after heating up, then the pipeline under header tank flows into hot-tub, send in multiple stage cooling tower by tower water pump in multiple stage, and use the integrated mode of pump one tower, water cooling pond is flowed into after blower fan convulsion cooling on cooled tower, the most often press pump and high-pressure pump are transported in blast furnace cooling device, form an open type cooling circulation.
A kind of upper tower pump energy saving technique of circulation water of blast furnace cooling system, it is characterized in that: have square hole between water cooling pond and hot-tub and equipped with communicating pipe and valve, the circulating water pool of pump house is installed above cooling tower, blower fan is positioned at the top of cooling tower, low pressure it is provided with or without compress water pond and shower nozzle in cooling tower, pipeline is passed through in the outlet of water cooling pond, water pump is connected with blast furnace cooling equipment importation, the outlet access set water tank of blast furnace cooling device, hot-tub is flowed into by header tank pipeline under, the outlet of hot-tub is connected to above multiple stage cooling tower by pipeline tower water pump in multiple stage small-power, use the integrated mode of tower one pump, water cooling pond is flowed into by the blower fan convulsion of cooling tower after being cooled down.
A kind of upper tower pump energy saving technique of circulation water of blast furnace cooling system, it is characterized in that: recirculated cooling water heats up through blast furnace cooling device heat exchange and flows into header tank, each header tank pipeline under will be installed valve and be closed, then on header tank, new pipeline is welded in perforate, the obstructed overheated pond of this pipeline, upper tower water pump and flow directly into cooling tower, water cooling pond is flowed into after the blower fan convulsion cooling of cooled tower, the most again in normal pressure and high-pressure hydraulic pump are transported to blast furnace cooling device, form an open type blood circulation.
A kind of upper tower pump energy saving technique of circulation water of blast furnace cooling system, it is characterized in that: recirculated water heats up through blast furnace cooling device heat exchange and flows into header tank, water return pipeline below header tank was installed a total valve before entering hot-tub and is closed, on valve inlet pipeline, new pipeline is welded in perforate, the obstructed overheated pond of this pipeline, upper tower water pump and flow directly into cooling tower, water cooling pond is flowed into after the blower fan convulsion cooling of cooled tower, the most again in normal pressure and high-pressure hydraulic pump are transported to blast furnace cooling device, form an open type blood circulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610320721.XA CN106017109A (en) | 2016-05-16 | 2016-05-16 | Energy-saving process of blast furnace circulating water cooling system with upper tower pumps |
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| CN201610320721.XA CN106017109A (en) | 2016-05-16 | 2016-05-16 | Energy-saving process of blast furnace circulating water cooling system with upper tower pumps |
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| CN106017109A true CN106017109A (en) | 2016-10-12 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107741708A (en) * | 2017-09-29 | 2018-02-27 | 四川德胜集团钒钛有限公司 | The power-economizing method of upper tower pump in a kind of circulating cooling water system of blast furnace |
| WO2020046959A1 (en) * | 2018-08-29 | 2020-03-05 | Illinois Tool Works Inc. | A cooling system for a reflow furnace |
| CN113203240A (en) * | 2021-04-27 | 2021-08-03 | 太和县大华能源科技有限公司 | Industrial circulating water system |
| CN113375474A (en) * | 2021-05-27 | 2021-09-10 | 洛阳远洋生物制药有限公司 | Operation method of high-temperature condensate water recycling system for traditional Chinese medicinal material production |
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| CN102701203A (en) * | 2012-05-08 | 2012-10-03 | 鹤壁煤电股份有限公司电石厂 | Cooling water belt pressure circulation new process for calcium carbide furnace |
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| CN205099360U (en) * | 2015-09-29 | 2016-03-23 | 茂名瑞派石化工程有限公司 | Symmetry formula sulphur recovery unit sulfur moulding and package unit process systems |
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2016
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| JPS58138984A (en) * | 1982-02-10 | 1983-08-18 | Nippon Ee C Ii Kk | Cooling tower |
| CN102102962A (en) * | 2010-12-28 | 2011-06-22 | 贾书洪 | Energy-saving regulating and control method and device of industrial cooling water towering pump |
| CN202075129U (en) * | 2011-05-25 | 2011-12-14 | 南车戚墅堰机车有限公司 | Diesel engine test room heat exchange water circulation system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107741708A (en) * | 2017-09-29 | 2018-02-27 | 四川德胜集团钒钛有限公司 | The power-economizing method of upper tower pump in a kind of circulating cooling water system of blast furnace |
| WO2020046959A1 (en) * | 2018-08-29 | 2020-03-05 | Illinois Tool Works Inc. | A cooling system for a reflow furnace |
| CN110871299A (en) * | 2018-08-29 | 2020-03-10 | 伊利诺斯工具制品有限公司 | Cooling system of reflow oven |
| US11679444B2 (en) | 2018-08-29 | 2023-06-20 | Illinois Tool Works Inc. | Cooling system for a reflow furnace |
| CN113203240A (en) * | 2021-04-27 | 2021-08-03 | 太和县大华能源科技有限公司 | Industrial circulating water system |
| CN113375474A (en) * | 2021-05-27 | 2021-09-10 | 洛阳远洋生物制药有限公司 | Operation method of high-temperature condensate water recycling system for traditional Chinese medicinal material production |
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Application publication date: 20161012 |