CN203320034U - Large-scale blast furnace hearth soft water cooling treatment device - Google Patents

Large-scale blast furnace hearth soft water cooling treatment device Download PDF

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Publication number
CN203320034U
CN203320034U CN201320342972XU CN201320342972U CN203320034U CN 203320034 U CN203320034 U CN 203320034U CN 201320342972X U CN201320342972X U CN 201320342972XU CN 201320342972 U CN201320342972 U CN 201320342972U CN 203320034 U CN203320034 U CN 203320034U
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CN
China
Prior art keywords
water
blast furnace
cupola well
cooling treatment
treatment unit
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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.)
Expired - Fee Related
Application number
CN201320342972XU
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Chinese (zh)
Inventor
苏明
舒文虎
李向伟
黄德友
席强华
王朝平
王永磊
李进
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Wuhan Iron and Steel Co Ltd
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Wuhan Iron and Steel Group Corp
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Priority to CN201320342972XU priority Critical patent/CN203320034U/en
Application granted granted Critical
Publication of CN203320034U publication Critical patent/CN203320034U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a large-scale blast furnace hearth soft water cooling treatment device and belongs to the technical field of blast furnace hearths. The large-scale blast furnace hearth soft water cooling treatment device comprises a hearth, wherein the hearth is composed of a first hearth section, a second hearth section and a third hearth section, cooling water pipes are arranged inside the second hearth section, cooling water pipes are connected in series, and the cooling water pipes are respectively connected with a water inlet pipe of a tuyere high-pressure soft water pipe and a water outlet pipe of the tuyere high-pressure soft water pipe to form a loop. By adopting the large-scale blast furnace hearth soft water cooling treatment device, a temperature of a cooling wall of a region near an iron notch of the hearth can be substantially lowered.

Description

A kind of large blast furnace cupola well soft water cooling treatment unit
Technical field
The utility model belongs to the blast furnace hearth technical field, is specifically related to a kind of large blast furnace cupola well soft water cooling treatment unit.
Background technology
Volume is 2600m 3Blast furnace belong to large blast furnace, the furnace life of large blast furnace is 15 years, the unit stove is produced the pig iron and is met or exceeded more than 10000 tons.Blast furnace generally is divided into 16 sections, and wherein cupola well is partly first to the 3rd section.Cupola well be in blast furnace production in coke convolution with bear slag iron zone, this zone in, temperature, up to more than 2200 ℃, and is born slag iron and is corroded, the molten iron convolution is washed away, it is more serious that especially iron mouth near zone is subject to the erosion of slag iron.Therefore, often cause the rising of cupola well iron mouth near zone cooling stave local temperature, cooling stave to damage, threaten safety in production, force blast furnace to be repaiied in advance.
The settling mode of this problem was processed with methods such as the method for high pressure cleaning and the furnace retainings of titaniferous furnace charge in the past.But the problem that the methods such as the method for high pressure cleaning and the furnace retaining of titaniferous furnace charge can not raise from solving in essence cupola well iron mouth near zone cooling stave temperature, cooling stave will damage like this, threaten safety in production, force blast furnace to be repaiied in advance, do not reach blast furnace and produce continuously the needs of 15 years.
The utility model content
The purpose of this utility model is to provide a kind of from reducing in essence the large blast furnace cupola well soft water cooling treatment unit of cupola well iron mouth near zone cooling stave temperature.
The technical scheme that the utility model adopts is:
A kind of large blast furnace cupola well soft water cooling treatment unit, comprise cupola well, described cupola well is comprised of three sections of one section of cupola well, two sections of cupola wells and cupola wells, comprise water-cooled tube in two sections of described cupola wells, between described water-cooled tube, connect, described water-cooled tube is connected to form loop with the water inlet pipe of air port high pressure hose and the rising pipe of air port high pressure hose respectively.
Further, the temperature highest region territory of the water-cooled tube of described series connection in cupola well.
Preferably, the quantity of described water-cooled tube is at least two.
Further, between described water-cooled tube, by metallic hose, connected.
Further, the rising pipe of the water inlet pipe of described air port high pressure hose and air port high pressure hose is connected with the water-cooled tube of series connection by metallic hose.
Further, the water inlet pipe of described air port high pressure hose is in parallel with water inlet control valve.
Further, the rear portion of described water inlet control valve is equipped with into the water wash water valve.
Further, the rising pipe of described air port high pressure hose is in parallel with outlet water control valve.
Further, the front portion of described outlet water control valve is equipped with the water outlet wash water valve.
Further, between three sections of one section of described cupola well and cupola wells by long connection by metal hose.
The utlity model has following advantage:
This apparatus structure is simple, easy to assembly, and production cost is low; This device is connected the water-cooled tube in the temperature highest region territory of cupola well, and be connected to form loop with the water inlet pipe of air port high pressure hose and the rising pipe of air port high pressure hose, so just from having reduced in essence cupola well iron mouth near zone cooling stave temperature, with regard to cooling stave, just can not damage like this, guaranteed safety in production, can not make blast furnace repair in advance, guarantee the blast furnace production needs of 15 years continuously, effectively reduce production cost.
The accompanying drawing explanation
The structural representation of a kind of large blast furnace cupola well soft water cooling treatment unit that Fig. 1 provides for the utility model embodiment.
Embodiment
Below in conjunction with drawings and embodiments, the utility model is described in further detail.
With reference to Fig. 1, it is example that the present embodiment be take No. four blast furnaces of Wuhan Iron and Steel Plant.A kind of large blast furnace cupola well soft water cooling treatment unit, comprise cupola well.Cupola well forms 3 by three sections of one section 1 of cupola well, two section 2 of cupola well and cupola wells.Two section 2 of cupola well is the highest zones of temperature in cupola well, wherein abnormal with the regional temperature of 104# water-cooled tube 4,105# water-cooled tube 5 and 106# water-cooled tube 6, temperature in normal cupola well should be 280~320 ℃, but this regional top temperature reaches more than 830 ℃.104# water-cooled tube 4,105# water-cooled tube 5 and 106# water-cooled tube 6 use metallic hoses 7 are connected.The water inlet pipe of 104# water-cooled tube 4 is connected with the water inlet pipe 8 of air port high pressure hose by metallic hose 7, and the rising pipe of 106# water-cooled tube 6 is connected with the rising pipe 9 of air port high pressure hose by metallic hose 7.The rising pipe 9 of the water inlet pipe 8 of air port high pressure hose, 104# water-cooled tube 4,105# water-cooled tube 5,106# water-cooled tube 6 and air port high pressure hose forms loop like this.In order better to control flooding quantity and the aquifer yield of the water coolant of air port high pressure hose, the water inlet pipe 8 of air port high pressure hose is in parallel with water inlet control valve 10, and the rear portion of water inlet control valve 10 is equipped with into water wash water valve 11; The rising pipe 9 of air port high pressure hose is in parallel with outlet water control valve 13, and the front portion of outlet water control valve 13 is equipped with water outlet wash water valve 14.Because the temperature that one section 1 of cupola well and cupola well are three section 3 is not high, do not need to use this device, between three section 3 of one section 1 of described cupola well and cupola well, directly by long metallic hose 12, be connected.
In the present embodiment, water-cooled tube caliber be Φ 80 * 680 * 6mm, cooling water inflow is 21m 3/ h, water coolant speed is 1.75m/s, total Water is 3864m 3/ h.The nominal diameter of the rising pipe 9 of the water inlet pipe 8 of air port high pressure hose and air port high pressure hose is 100mm, metallic hose 7 is 65mm with the nominal diameter of long metallic hose 12, the pressure of the water inlet pipe 8 of mouth high pressure hose is 1.5Mpa, and the pressure of water-cooled tube is 0.8Mpa.
When the work of this device, cooling-water flowing is through the rising pipe 9 of water inlet pipe 8,104# water-cooled tube 4,105# water-cooled tube 5,106# water-cooled tube 6 and the air port high pressure hose of air port high pressure hose, form loop, the cooling stave working temperature is normal, is reduced to 320 ℃ of left and right more than 830 ℃ from original abnormal temperature.Cupola well has been carried out to twice detection, and for the first time: the cupola well water temperature difference drops to 0.228 ℃ by 0.337 ℃, and cooling stave discharge (cupola well) discharge is: 3850m 3/ h, heat flow rate per unit area (cupola well) reaches 4253.69Kcal/m2.h; For the second time: cooling stave discharge (cupola well) discharge is: 3990m 3/ h, heat flow rate per unit area (cupola well) reaches 3011.48Kcal/m2.h, and its cooling-down effect is obvious, has guaranteed the trouble-free service of cupola well, for No. four blast furnaces complete generation furnace life, provides guarantee.
This apparatus structure is simple, easy to assembly, and production cost is low; This device is connected the water-cooled tube in the temperature highest region territory of cupola well, and be connected to form loop with the water inlet pipe 8 of air port high pressure hose and the rising pipe 9 of air port high pressure hose, so just from having reduced in essence cupola well iron mouth near zone cooling stave temperature, with regard to cooling stave, just can not damage like this, guaranteed safety in production, can not make blast furnace repair in advance, guarantee the blast furnace production needs of 15 years continuously, effectively reduce production cost.
It should be noted last that, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to preferred embodiment, the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not breaking away from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.

Claims (10)

1. a large blast furnace cupola well soft water cooling treatment unit, comprise cupola well, described cupola well is comprised of three sections of one section of cupola well, two sections of cupola wells and cupola wells, it is characterized in that, comprise water-cooled tube in two sections of described cupola wells, between described water-cooled tube, connect, described water-cooled tube is connected to form loop with the water inlet pipe of air port high pressure hose and the rising pipe of air port high pressure hose respectively.
2. large blast furnace cupola well soft water cooling treatment unit according to claim 1, is characterized in that, the temperature highest region territory of the water-cooled tube of described series connection in cupola well.
3. large blast furnace cupola well soft water cooling treatment unit according to claim 1, is characterized in that, the quantity of described water-cooled tube is at least two.
4. large blast furnace cupola well soft water cooling treatment unit according to claim 3, is characterized in that, between described water-cooled tube, by metallic hose, connected.
5. large blast furnace cupola well soft water cooling treatment unit according to claim 1, is characterized in that, the water inlet pipe of described air port high pressure hose and the rising pipe of air port high pressure hose are connected with the water-cooled tube of series connection by metallic hose.
6. large blast furnace cupola well soft water cooling treatment unit according to claim 1, is characterized in that, the water inlet pipe of described air port high pressure hose is in parallel with water inlet control valve.
7. large blast furnace cupola well soft water cooling treatment unit according to claim 6, is characterized in that, the rear portion of described water inlet control valve is equipped with into the water wash water valve.
8. large blast furnace cupola well soft water cooling treatment unit according to claim 1, is characterized in that, the rising pipe of described air port high pressure hose is in parallel with outlet water control valve.
9. large blast furnace cupola well soft water cooling treatment unit according to claim 8, is characterized in that, the front portion of described outlet water control valve is equipped with the water outlet wash water valve.
10. large blast furnace cupola well soft water cooling treatment unit according to claim 1, is characterized in that, between three sections of one section of described cupola well and cupola wells by long connection by metal hose.
CN201320342972XU 2013-06-14 2013-06-14 Large-scale blast furnace hearth soft water cooling treatment device Expired - Fee Related CN203320034U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320342972XU CN203320034U (en) 2013-06-14 2013-06-14 Large-scale blast furnace hearth soft water cooling treatment device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320342972XU CN203320034U (en) 2013-06-14 2013-06-14 Large-scale blast furnace hearth soft water cooling treatment device

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CN203320034U true CN203320034U (en) 2013-12-04

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103740877A (en) * 2013-12-20 2014-04-23 鞍钢股份有限公司 Device for retarding erosion of blast furnace hearth and application method thereof
CN108977600A (en) * 2018-09-29 2018-12-11 陕西龙门钢铁有限责任公司 A kind of blast furnace intensity of cooling segmented control system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103740877A (en) * 2013-12-20 2014-04-23 鞍钢股份有限公司 Device for retarding erosion of blast furnace hearth and application method thereof
CN108977600A (en) * 2018-09-29 2018-12-11 陕西龙门钢铁有限责任公司 A kind of blast furnace intensity of cooling segmented control system

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GR01 Patent grant
C14 Grant of patent or utility model
TR01 Transfer of patent right

Effective date of registration: 20170706

Address after: 430080 Qingshan District stock company of Hubei, Wuhan Province

Patentee after: Wuhan iron and Steel Company Limited

Address before: 430080 Friendship Avenue, Hubei, Wuhan, No. 999

Patentee before: Wuhan Iron & Steel (Group) Corp.

TR01 Transfer of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20131204

Termination date: 20180614

CF01 Termination of patent right due to non-payment of annual fee