WO2013044595A1 - 水淬蒸汽法利用熔渣余热移动渣罐水淬系统 - Google Patents

水淬蒸汽法利用熔渣余热移动渣罐水淬系统 Download PDF

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Publication number
WO2013044595A1
WO2013044595A1 PCT/CN2012/001334 CN2012001334W WO2013044595A1 WO 2013044595 A1 WO2013044595 A1 WO 2013044595A1 CN 2012001334 W CN2012001334 W CN 2012001334W WO 2013044595 A1 WO2013044595 A1 WO 2013044595A1
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WO
WIPO (PCT)
Prior art keywords
slag
tank
water quenching
steam
water
Prior art date
Application number
PCT/CN2012/001334
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English (en)
French (fr)
Original Assignee
魏明
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from CN2011203766349U external-priority patent/CN202246714U/zh
Priority claimed from CN201110293723.1A external-priority patent/CN102304594B/zh
Application filed by 魏明 filed Critical 魏明
Publication of WO2013044595A1 publication Critical patent/WO2013044595A1/zh

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B3/00—General features in the manufacture of pig-iron
    • C21B3/04—Recovery of by-products, e.g. slag
    • C21B3/06—Treatment of liquid slag
    • C21B3/08—Cooling slag
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B3/00—General features in the manufacture of pig-iron
    • C21B3/04—Recovery of by-products, e.g. slag
    • C21B3/06—Treatment of liquid slag
    • C21B3/10—Slag pots; Slag cars
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2400/00—Treatment of slags originating from iron or steel processes
    • C21B2400/02—Physical or chemical treatment of slags
    • C21B2400/022—Methods of cooling or quenching molten slag
    • C21B2400/024—Methods of cooling or quenching molten slag with the direct use of steam or liquid coolants, e.g. water
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2400/00—Treatment of slags originating from iron or steel processes
    • C21B2400/05—Apparatus features
    • C21B2400/066—Receptacle features where the slag is treated
    • C21B2400/068—Receptacle features where the slag is treated with a sealed or controlled environment
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2400/00—Treatment of slags originating from iron or steel processes
    • C21B2400/05—Apparatus features
    • C21B2400/066—Receptacle features where the slag is treated
    • C21B2400/072—Tanks to collect the slag, e.g. water tank
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2400/00—Treatment of slags originating from iron or steel processes
    • C21B2400/08—Treatment of slags originating from iron or steel processes with energy recovery
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Definitions

  • the invention relates to a water quenching steam method which utilizes an ironmaking steelmaking slag waste heat recovery system, in particular, a water quenching steam method, which utilizes an iron smelting steel slag residual heat moving slag tank water quenching system.
  • the invention patent No. 200610045538 proposes a method for continuously quenching slag in a closed vessel, water quenching to generate steam continuously flowing through the pipeline, and driving the steam turbine with a high pressure steam to rotate the slag residual heat. It is called slag water quenching steam method.
  • the invention patent number 200710014446 After the patent is filed, the invention patent number 200710014446. X further proposes an improvement of the method. In the 200710014446.
  • the slag tank is fixed in the upper part of the water quenching tank, and there is a problem that the slag tank has a large volume, the water quenching tank and the slag tank are inconvenient to be repaired, and the installation on site is difficult.
  • the invention proposes a water quenching system consisting of a fixed water quenching tank, a plurality of movable slag tanks and a moving slag tank device.
  • the water quenching tank is fixed on the lower cold slag discharging device; the top of the water quenching tank is open, the inner wall of the water quenching tank is opened under the top opening, and the tank is embedded with a high temperature sealing ring; the water level in the water quenching tank The pressure equalization hole and the steam outlet are opened on the upper side; the movable slag tank is lined with a refractory layer, the lower outer surface is tapered or arc-shaped, the bottom is provided with a slag sliding nozzle, the top opening, the refractory cover and the high temperature resistant rubber sealing cover It can be covered in the top opening in turn, and the outer layer of high temperature resistant rubber cap can be locked to seal the slag pot; the movable slag tank is equipped with lifting lugs on the side, and the slag liquid surface in the slag tank has a pressure equalizing hole on the side of the tank.
  • the moving slag tank device such as driving is used to hang the slag tank to the slag outlet of the ironmaking blast furnace or the steelmaking converter, and the slag or the converter discharges the slag into the slag tank.
  • the blast furnace or converter After the slag tank is filled with slag, the blast furnace or converter temporarily stops slag discharge, and the filled slag tank is covered with a refractory cover and a high temperature resistant rubber sealing cover to lock the high temperature resistant rubber sealing cover; the mobile slag tank device such as driving will be full
  • the slag tank is suspended on the water quenching tank, and the mobile slag tank device such as driving is used to hang the empty slag tank to the slag outlet of the ironmaking furnace or the steelmaking converter, and the blast furnace or the converter continues to discharge the slag.
  • the tapered outer surface of the lower part of the slag tank on the water quenching tank is in close contact with the inner inner sealing ring of the water quenching tank, and the upper slag tank itself is sealed with the lower water quenching tank; the outer surface of the lower part of the slag tank and the upper part of the water quenching tank There is a narrow slit between the sealing rings, and the sealing ring is cooled by spraying water to the narrow slit at the outside; the pressure equalizing hole of the lower water quenching tank and the upper slag tank are connected by a soft sealing pipe; opening the sliding nozzle device with an external opening The bottom of the slag tank slides into the nozzle, and the slag flows into the lower water quenching tank.
  • the water gun in the water quenching tank sprays a high-pressure water stream to break into the slag and undergo water quenching.
  • the slag falls into the water quenching tank and water quenching also occurs.
  • the steam generated in the water quenching tank flows out through the pressure equalizing hole and the steam outlet, and the steam flowing out from the pressure equalizing hole enters the upper slag tank through the soft sealing tube to pressurize the slag in the upper slag tank, and the steam flows out from the steam outlet through the steam switching valve.
  • the steam main pipe is connected, the steam in the main pipe enters the primary circuit heat exchange of the heat exchanger, and the steam condensed water flows out through the primary circuit outlet of the heat exchanger; the primary circuit outlet is equipped with a pressure increasing valve to increase the pressure in the water quenching tank; the main steam pipe can also be connected Into the electrostatic precipitator, the water quenched steam enters the electrostatic precipitator and is used directly after dust removal.
  • a water quenching point is provided with two sets of fixed water quenching tanks, a water quenching device for the lower cold slag discharging device, a plurality of slag tanks and a moving slag tank device such as a driving vehicle, and one set of water when the water quenching device works.
  • the quenching device replaces the slag tank, cleaning, and maintenance.
  • each slag tank can be small; when the slag is discharged from the blast furnace or the converter, the slag tank is only placed under the slag outlet of the blast furnace and the converter, and the slag discharging process is the same as that of the existing blast furnace and the converter slag tank.
  • the same specifications can be used for the slag tank and the water quench tank.
  • the slag tank and the water quench tank can be standardized; the slag tank and the water quench tank are easy to be repaired, and the water quenching system is convenient for confirmation. On-site installation.
  • Figure 1 is a schematic view showing the slag loading of the movable slag tank of the present invention
  • Figure 2 is a schematic view showing the first embodiment of the movable slag tank water quenching system of the present invention
  • Figure 3 is a schematic view showing a second embodiment of the movable slag tank water quenching system of the present invention.
  • slag tank upper mouth 0. slag tank upper mouth, 1. slag tank upper mouth outer rubber sealing cover, 2. slag tank upper inner layer refractory cover, 3. slag tank internal slag liquid surface, 4. slag tank internal slag 5.
  • the refractory layer in the slag tank 6.
  • the slag tank body 7.
  • the slag tank lifting lug 8.
  • the water quenching pipe 10.
  • the water quenching tank Surface 11. Slag water gun, 12. Slag sliding nozzle at the bottom of the slag tank, 13. Outflow water quenching steam, 14. Water quenching steam pipeline, 15. Water quenching tank, 16. First quenching slag valve under water quenching tank 17.
  • the spiral slag discharge device, 20. The clean steam outflow pipeline, 21.
  • the water vapor outlet 38. The opening and closing of the sliding nozzle device.
  • slag tank upper mouth 0. slag tank upper mouth, 1. slag tank upper mouth outer rubber sealing cover, 2. slag tank upper inner layer refractory cover, 3. slag tank slag liquid surface, 4. slag tank slag 5.
  • the refractory layer in the slag tank 6.
  • the slag tank body 7.
  • the slag tank lifting lug 8.
  • the water quenching pipeline 10.
  • the water quenching tank Surface 11. Slag water gun, 12. Slag sliding nozzle at the bottom of the slag tank, 13. Outflow water quenching steam, 14. Water quenching steam pipeline, 15. Water quenching tank, 16. First quenching slag valve under water quenching tank 17.
  • the spiral slag discharge device, 20. The clean steam outflow pipeline, 21.
  • the electrostatic precipitator. The lower part of the slag tank cone, 27.
  • the slag tank (4) is suspended to the ironmaking and steelmaking slag tank (1), and the slag tank (4) is placed on the support (9), and the slag tank (4) is placed at the upper end ( 3) Open, the bottom slag discharge port (8) is closed, and the slag flow (2) flows from the upper slag tank (3) into the slag pot (4).
  • Fig. 2 two sets of water quenching devices (9), (11), (15) ⁇ (19) are set up near the iron making and steelmaking furnace, and the slag tank (6) is lined with a refractory layer (5).
  • the refractory layer (5) is covered with an inner refractory cover (2) and an outer rubber sealing cover (1), and the outer side of the slag pot (6) is provided with a lifting lug (7), and the slag tank (6) has a slag level (3)
  • the upper side is provided with a pressure equalizing hole (35), the lower part (26) of the slag tank (6) is tapered, and the bottom of the slag tank (6) is provided with a slag sliding nozzle (12);
  • the water quenching tank (15) The top opening, the inner surface groove of the water quenching tank (15) is embedded with a sealing ring (27), and the water leveling surface (10) of the water quenching tank (15) has a pressure equalizing hole on the upper side ( 36) and the steam
  • the top cover (1), (2) of the slag tank (6) is opened, the bottom sliding nozzle (12) is closed, and the moving slag tank device such as driving is hooked to the slag tank lifting lug (7) to slag.
  • the tank is suspended to the slag outlet of the ironmaking blast furnace or the steelmaking converter, and the slag discharged from the blast furnace or the converter into the slag tank from the upper mouth (0); the slag tank is filled with slag and covered with two The top cover (1), (2), the high temperature resistant rubber sealing cover (1) is locked, and the mobile device such as driving is used to hang the filled slag pot (6) onto the water quenching tank (15), and the slag pot (6)
  • the tapered bottom portion (26) is in close contact with the upper seal ring (27) of the water quenching tank to form a seal; the pressure equalizing holes (35) and (36) are connected by a sealing hose (8), and the water quenching tank (15) is connected.
  • the steam pipe switching valve (29) closes the steam pipe switching valve (30) connected to the other water quenching tank, and opens the sliding water nozzle (12) at the bottom of the slag tank (6) by opening and closing the sliding nozzle device (38), and melting the slag tank
  • the slag flows into the water quenching tank (15) through the slag nozzle (12); the high pressure water stream is ejected from the slag squirt (11), and the slag stream is discharged from the sliding nozzle (12), and the steam is generated in the water quenching tank (15).
  • the pressure hole (36) and the outlet (37) flow out, and the steam flowing out from the pressure equalizing hole (36) passes through the soft sealing tube (8) and enters the slag tank (6) slag liquid surface (3), and the slag pot (6)
  • the inner slag (4) is pressurized; the steam (13) exits from the steam outlet (37) through the steam line (14) and the valve (29) into the heat exchanger (23) primary circuit, the steam in the heat exchanger (23) - Exothermic condensation in the secondary circuit, water quenched steam condensate through the outlet (22) Out, heat exchangers
  • the primary circuit outlet pressure relief valve (28) causes the water quenching steam to reach a high pressure; the clean water pump (24) drives the secondary circuit of the heat exchanger into clean water, and the purified water in the secondary circuit of the heat exchanger absorbs the heat generated by the primary circuit. It becomes clean steam (21) and flows out from the pipe (20).
  • a steam outlet (37), a water-quenching tank (15) is provided with an isolation chamber (17), a spiral slag discharge device (19), two valves (16), (18) and the like to seal the cold slag discharge device;
  • the top cover (1), (2) and the bottom sliding nozzle (12) of the slag tank (6) are closed, and the moving slag tank device such as driving is hooked on the slag tank lifting lug (7) to hang the slag tank
  • the slag is covered with two top covers (1), (2), and the high temperature resistant rubber sealing cover (1) is locked, and the moving device such as driving is used to hang the filled slag pot (6) onto the water quenching tank (15).
  • the tapered bottom (26) of the slag tank (6) is in close contact with the upper seal ring (27) of the water quenching tank to form a seal; connect the pressure equalizing holes (35), (36) with a sealing hose (8), and open
  • the closed sliding nozzle device (38) opens the steam pipe switching valve (29) connected to the water quenching tank (15), closes the steam pipe switching valve (30) connected to the other water quenching tank, and opens the bottom sliding water port of the slag tank (6) ( 12), the slag in the slag tank flows into the water quenching tank (15) through the slag nozzle (12); the high-pressure water jet is shot from the slag water gun (11) to crush the slag stream from the sliding nozzle (12), and the water quenching tank ( 15)
  • the generated steam flows out from the pressure equalizing hole (36) and the outlet (37), and the steam flowing out from the pressure equalizing hole (36) passes through the soft sealing tube (8) and enters the slag tank (6) slag liquid level (3)

Abstract

一种水淬蒸汽法利用炼铁炼钢熔渣余热移动渣罐（6）水淬系统，水淬罐（15）内壁嵌入耐高温密封圈（27），侧壁开出均压孔（36）和蒸汽出口（37）；渣罐（6）底部安装出渣滑动水口（12），上口用耐火盖（2）和耐高温橡胶盖（1）密封，侧面装有吊耳（7）、开有均压孔（35）；将装满的渣罐（6）吊到水淬罐（15）上放下，渣罐（6）外表面与水淬罐（15）内密封圈（27）靠重力密封；软密封管（8）连接上下均压孔（35，36），从水淬罐（15）均压孔（36）流出蒸汽对渣罐（6）内熔渣（4）加压；从水淬罐蒸汽出口（37）流出蒸汽进入换热器（23）一次回路放热，一次回路出口装憋压阀（28）增加水淬罐（15）内压力。

Description

水淬蒸汽法利用熔渣余热移动渣罐水淬系统
所属技术领域
本发明涉及一种水淬蒸汽法利用炼铁炼钢熔渣余热系统， 尤其是水淬蒸汽法利用炼铁炼 钢熔渣余热移动渣罐水淬系统。
背景技术
目前， 公知炼钢炼铁熔渣数量和含热量都十分巨大， 但长期以来未找到利用熔渣余热好 方法。 申请号为 200610045538. X的发明专利提出一种使熔渣在密闭容器内连续水淬、 水淬产 生蒸汽通过管道连续流出、 用高压蒸汽流驱动蒸汽轮机转动利用熔渣余热的方法， 这种方法 称为熔渣水淬蒸汽法。 在该专利提出之后， 申请号为 200710014446. X的发明专利又提出该方 法的改进。 所述 200710014446. X专利中熔渣罐固定在水淬罐上部， 存在熔渣罐容积很大、 水 淬罐和熔渣罐不便于检修、 现场安装困难等问题。
发明内容
为了克服 200710014446. X专利中熔渣罐固定在水淬罐上部所带来的不足， 本发明提出由 固定水淬罐、 多个可移动渣罐和行车等移动渣罐装置组成水淬系统。
本发明解决其技术问題所采用的技术方案
水淬罐固定在下部冷渣排渣装置之上； 水淬罐顶部敞口， 水淬罐顶部开口之下内壁上开 出槽， 槽内嵌入耐高温密封圈； 水淬罐内积水液面之上侧面开出均压孔和蒸汽出口； 可移动 渣罐内衬耐火层， 下部外表面为锥形或圆弧形， 底部安装出渣滑动水口， 顶部开口， 耐火盖 和耐高温橡胶密封盖可依次盖在顶部开口内， 外层耐高温橡胶盖可被锁紧使渣罐密封； 可移 动渣罐侧面装有吊耳， 渣罐内熔渣液面之上罐侧面幵有均压孔。
渣罐进熔渣时将两层顶盖打开、 底部滑动水口关闭， 行车等移动渣罐装置将渣罐吊到炼 铁高炉或炼钢转炉出渣口下， 高炉或转炉排出熔渣流入渣罐； 渣罐装满熔渣后高炉或转炉暂 时停止排渣， 装满的渣罐盖上耐火盖和耐高温橡胶密封盖， 将耐高温橡胶密封盖锁紧； 行车 等移动渣罐装置将装满渣罐吊到水淬罐上放下， 行车等移动熔渣罐装置将空渣罐吊到炼铁髙 炉或炼钢转炉出渣口下， 高炉或转炉继续排渣。
水淬罐上渣罐下部锥形外表面与水淬罐上部内密封圈紧密接触， 上部渣罐自身重力实现 与下部水淬罐之间密封； 渣罐下部锥形外表面与水淬罐上部内密封圈之间有一条窄缝， 在外 部向所述窄缝喷水使密封圈降温； 用软密封管连接下部水淬罐均压孔与上部渣罐均压孔； 用 外部打开滑动水口装置打开渣罐底部滑动水口， 熔渣流入下部水淬罐， 水淬罐内水枪喷出高 压水流击碎流入熔渣并发生水淬， 熔渣落入水淬罐内积水也发生水淬。
水淬罐内产生蒸汽通过均压孔和蒸汽出口流出， 从均压孔流出蒸汽通过软密封管进入上 部渣罐， 实现对上部渣罐内熔渣加压， 从蒸汽出口流出蒸汽通过蒸汽切换阀接入蒸汽主管道， 主管道内蒸汽进入换热器一次回路换热， 蒸汽冷凝水经换热器一次回路出口流出； 一次回路 出口装憋压阀增加水淬罐内压力； 蒸汽主管道也可接入电除尘器， 水淬蒸汽进入电除尘器内 除尘后直接利用。
渣罐出完渣将其底部滑动水口关闭， 将水淬罐均压孔与渣罐均压孔之间软密封管断开， 移动渣罐装置将渣罐吊离水淬罐， 清理维修渣罐； 一个水淬点设两套固定水淬罐、 下部冷渣 排渣装置的水淬装置、 多个渣罐和一套行车等移动熔渣罐装置， 一套水淬装置工作时另一套 水淬装置调换渣罐、 清理、 维修。
本发明的有益效果
采用多个可移动渣罐， 各渣罐容积可以较小； 高炉、 转炉排渣时只需将渣罐置于高炉、 转炉出渣口下， 与现有高炉、 转炉渣罐排渣工艺过程相同； 无论高炉、 转炉大小， 渣罐和水 淬罐可采用同一种规格， 渣罐和水淬罐可以标准化； 渣罐和水淬罐便于检修， 水淬系统便于 确认本 现场安装。
附 说
下面结合附图对本发明进一步说明。
图 1是本发明可移动渣罐进渣示意图；
图 2是本发明可移动渣罐水淬系统第 1个实施例原理图；
图 3是本发明可移动渣罐水淬系统第 2个实施例原理图。
在图 1中， 1.炼铁、 炼钢熔渣槽口， 2.熔渣流， 3.渣罐上口， 4.渣罐体， 5.渣罐吊耳， 6. 渣罐内耐火层， 7.渣罐锥形下部， 8.渣罐底部排渣口， 9.渣罐下支架。
在图 2中， 0.渣罐上口， 1.渣罐上口外层橡胶密封盖， 2.渣罐上口内层耐火盖， 3.渣罐内 熔渣液面， 4.渣罐内熔渣， 5.渣罐内耐火层， 6.渣罐体， 7.渣罐吊耳， 8.连接渣罐和水淬罐 软密封管， 9.水淬管道， 10.水淬罐内积水液面， 11.冲渣水枪， 12.渣罐底部出渣滑动水口， 13.流出水淬蒸汽， 14.水淬蒸汽管道， 15.水淬罐， 16.水淬罐下第 1道冷渣阀， 17.水淬罐下 隔离腔， 18.隔离腔下第 2道冷渣阀， 19.螺旋排渣器， 20.洁净蒸汽流出管道， 21.流出洁净蒸 汽， 22.水淬蒸汽冷凝水出口， 23.换热器， 24.洁净水泵， 25.洁净水进入换热器管道， 26. 渣罐锥形下部， 27.水淬罐上口密封圈， 28.换热器一次回路出口憋压阀， 29.水淬蒸汽切换闽， 30.第 2水淬罐蒸汽切换阀， 31.第 2水淬罐流出蒸汽， 32.第 2水淬罐蒸汽管道， 33.水位表， 34. 溢水罐， 35.渣罐蒸汽均压孔， 36.水淬罐均压孔， 37.水淬罐蒸汽出口， 38.开闭滑动水口装 置。
在图 3中， 0.渣罐上口， 1.渣罐上口外层橡胶密封盖， 2.渣罐上口内层耐火盖， 3.渣罐内 熔渣液面， 4.渣罐内熔渣， 5.渣罐内耐火层， 6.渣罐体， 7.渣罐吊耳， 8.连通渣罐和水淬罐 软密封管， 9.水淬管道， 10.水淬罐内积水液面， 11.冲渣水枪， 12.渣罐底部出渣滑动水口， 13.流出水淬蒸汽， 14.水淬蒸汽管道， 15.水淬罐， 16.水淬罐下第 1道冷渣阀， 17.水淬罐下 隔离腔， 18.隔离腔下第 2道冷渣阀， 19.螺旋排渣器， 20.洁净蒸汽流出管道， 21.流出洁净蒸 汽， 23.电除尘器， 26.渣罐锥形下部， 27.水淬罐上口密封圈， 29.水淬蒸汽切换阀， 30.第 2 水淬罐蒸汽切换阀， 31.第 2水淬罐流出蒸汽， 32.第 2水淬罐蒸汽管道， 33.水位表， 34.溢水 罐， 35.渣罐蒸汽均压孔， 36.水淬罐均压孔， 37.水淬罐蒸汽出口， 38.开闭滑动水口装置。 具体实施方式
在图 1中， 将渣罐 (4)吊到炼铁、 炼钢熔渣槽口（1)下， 将渣罐 (4)放到支架 (9)之上， 渣罐 (4)上口（3)敞开， 底部排渣口（8)关闭， 溶渣流 (2)从渣罐上口（3)流入渣罐 (4)。
在图 2中， 在炼铁、 炼钢炉附近建立两套 (9) 、 (11) 、 （15)〜(19)所示水淬装置， 渣罐 (6) 内衬耐火层 (5)， 耐火层 (5)上盖有内层耐火盖 (2)和外层橡胶密封盖（1) , 渣罐 (6)外侧面装有 吊耳 (7)， 渣罐 (6)内熔渣液面 (3)之上侧面开有均压孔 (35)， 渣罐 (6)下部 (26)为锥形， 渣罐 (6)底部装有出渣滑动水口（12) ; 水淬罐（15)顶部敞口， 水淬罐（15)顶部敞口之下内表面槽内 嵌有密封圈 (27)， 水淬罐（15)内积水液面（10)之上侧面开有均压孔 (36)和蒸汽出口（37)， 水 淬罐 (15)下设有隔离腔（17)、 螺旋排渣器（19)、 两道阀门（16)、 (18)等组成的密封冷渣排渣 装置； 进熔渣时将渣罐 (6)两层顶盖 (1)、 （2)打开、 底部滑动水口（12)关闭， 行车等移动渣罐 装置钩住渣罐吊耳（7)将渣罐吊到炼铁高炉或炼钢转炉出渣口下，高炉或转炉排出熔渣从上口 (0)流入渣罐； 渣罐装满熔渣后盖上两层顶盖（1)、 （2)， 将耐高温橡胶密封盖 (1)锁紧， 行车 等移动装置将装满渣罐 (6)吊到水淬罐（15)上放下， 渣罐 (6)锥形底部 (26)与水淬罐上口密封 圈（27)紧密接触形成密封； 用密封软管 (8)连接均压孔 (35)、 （36)， 打开水淬罐 (15)所接蒸汽 管道切换阀 (29)， 关闭另一个水淬罐所接蒸汽管道切换阀 (30)， 用开闭滑动水口装置 (38)打 开渣罐 (6)底部滑动水口（12)，渣罐内熔渣通过出渣水口（12)流入水淬罐（15)；从冲渣水枪（11) 射出高压水流击碎从滑动水口（12)流出熔渣流， 水淬罐（15)内产生蒸汽从均压孔 (36)和出口 (37)流出，从均压孔 (36)流出蒸汽通过软密封管 (8)进入渣罐 (6)熔渣液面 (3)之上，对渣罐 (6) 内熔渣 (4)加压； 从蒸汽出口（37)流出蒸汽（13)通过蒸汽管道（14)和阀 (29)进入换热器 (23) 一次回路， 蒸汽在换热器 (23)—次回路内放热冷凝， 水淬蒸汽冷凝水经出口（22)放出， 换热 器一次回路出口憋压阀 (28)使水淬蒸汽达到高压； 洁净水泵 (24)为换热器二次回路打入洁净 水，换热器二次回路内的净水吸收一次回路放出热量后变成洁净蒸汽 (21)， 从管道 (20)流出。
在图 3， 在炼铁、 炼钢炉附近建立两套 (9) 、 (11) 、 （15厂 (19)所示水淬装置， 渣罐 (6) 内衬耐火层 (5)， 耐火层 (5)上盖有内层耐火盖 (2)和外层橡胶密封盖（1)，渣罐 (6)外侧面装有 吊耳 (7) , 渣罐 (6)内熔渣液面 (3)之上侧面开有均压孔 (35)， 渣罐 (6)下部 (26)为锥形， 渣罐 (6)底部装有出渣滑动水口（12) ;水淬罐（15)顶部敞口，水淬罐（15)顶部敞口之下内表面槽内 嵌有密封圈（27)， 水淬罐（15)内积水液面（10)之上侧面开有均压孔 (36)和蒸汽出口（37)， 水 淬罐 (15)下设有隔离腔（17)、 螺旋排渣器（19)、 两道阀门（16)、 （18)等组成的密封冷渣排渣 装置； 进熔渣时将渣罐 (6)两层顶盖（1)、 （2)打开、底部滑动水口（12)关闭， 行车等移动渣罐 装置钩住渣罐吊耳 (7)将渣罐吊到炼铁高炉或炼钢转炉出渣口下，高炉或转炉排出熔渣从上口 (0)流入渣罐； 渣罐装满熔渣后盖上两层顶盖（1)、 （2)， 将耐高温橡胶密封盖（1)锁紧， 行车 等移动装置将装满渣罐 (6)吊到水淬罐 (15)上放下， 渣罐 (6)锥形底部 (26)与水淬罐上口密封 圈 (27)紧密接触形成密封； 用密封软管 (8)连接均压孔 (35)、 （36) , 用开闭滑动水口装置 (38) 打开水淬罐（15)所接蒸汽管道切换阀 (29)， 关闭另一个水淬罐所接蒸汽管道切换阀 (30)， 打 开渣罐 (6)底部滑动水口（12)，渣罐内熔渣通过出渣水口（12)流入水淬罐（15)；从冲渣水枪（11) 射出高压水流击碎从滑动水口（12)流出熔渣流， 水淬罐（15)内产生蒸汽从均压孔 (36)和出口 (37)流出，从均压孔 (36)流出蒸汽通过软密封管 (8)进入渣罐 (6)熔渣液面 (3)之上，对渣罐 (6) 内熔渣 (4)加压； 从蒸汽出口（37)流出蒸汽（13)通过蒸汽管道（14)和阀（29)进入电除尘器 (23)， 在电除尘器 (23)内除尘后变成洁净蒸汽 (21)， 从管道 (20)流出。

Claims

权 利 要 求 书
1. 一种水淬蒸汽法利用炼铁炼钢熔渣余热移动渣罐水淬系统， 其特征是： 由固定下部冷渣排 渣装置和上部水淬罐、 多个可移动渣罐、 行车或吊车等组成水淬系统； 水淬罐顶部敞口， 上 部内壁嵌有耐高温密封圈， 罐内积水液面之上侧面开有均压孔和蒸汽出口、 装有从外部开闭 滑动水口装置； 可移动渣罐下部外表面为锥形或圆弧形， 底部安装出渣滑动水口， 顶部开口， 耐火盖和耐高温橡胶密封盖可依次盖在顶部开口内， 外层耐高温橡胶盖可被锁紧密封， 外侧 面装有吊耳， 罐内熔渣液面之上侧面开有均压孔； 渣罐进渣时将顶盖都打开、 底部滑动水口 关闭， 将渣罐吊到高炉或转炉出渣口下， 使熔渣流入渣罐； 渣罐装满后盖上所述耐火盖和耐 高温橡胶密封盖， 外层耐高温橡胶盖被锁紧； 渣罐被吊放在水淬罐上， 渣罐下部外表面与水 淬罐上部内密封圈紧密接触， 上部渣罐自身重力实现与下部水淬罐之间密封； 用软管将下部 水淬罐均压孔与上部渣罐均压孔连接； 用水淬罐外部开闭水口装置打开渣罐底部滑动水口， 渣罐内熔渣流入下部水淬罐， 熔渣与水淬罐内水枪喷出水流相遇或落入水淬罐内积水发生水 淬； 水淬罐内水淬产生蒸汽通过水淬罐均压孔和蒸汽出口流出， 从均压孔流出蒸汽通过软管 进入上部渣罐熔渣液面之上对渣罐内熔渣加压， 从蒸汽出口流出蒸汽通过蒸汽主管道进入换 热器一次回路放出热量， 蒸汽冷凝水经一次回路出口流出， 一次回路出口装憋压阀增加水淬 罐内压力； 换热器二次回路洁净水吸收热量变为洁净蒸汽流出供使用； 渣罐出完渣断开水淬 罐均压孔与渣罐均压孔之间软管道断开， 将渣罐吊起备用。
2. 根据权利要求 1所述的一种水淬蒸汽法利用炼铁炼钢熔渣余热移动渣罐水淬系统， 其特征 是： 蒸汽主管道接入电除尘器， 水淬蒸汽在电除尘器内被除尘后供使用。
3. 根据权利要求 1、 2所述的一种水淬蒸汽法利用炼铁炼钢熔渣余热移动渣罐水淬系统， 其 特征是： 一个水淬点设有两套固定下部冷渣排渣装置和上部水淬罐， 每个水淬罐蒸汽出口通 过一个蒸汽切换阀与蒸汽主管道连接，一个水淬罐工作时另一个水淬罐蒸汽出口切换阀关闭。
PCT/CN2012/001334 2011-09-29 2012-09-29 水淬蒸汽法利用熔渣余热移动渣罐水淬系统 WO2013044595A1 (zh)

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