WO2018157452A1 - 一种带有流量温度监测及控制功能的二级液态熔渣缓存系统 - Google Patents

一种带有流量温度监测及控制功能的二级液态熔渣缓存系统 Download PDF

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WO2018157452A1
WO2018157452A1 PCT/CN2017/080328 CN2017080328W WO2018157452A1 WO 2018157452 A1 WO2018157452 A1 WO 2018157452A1 CN 2017080328 W CN2017080328 W CN 2017080328W WO 2018157452 A1 WO2018157452 A1 WO 2018157452A1
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Prior art keywords
slag
stopper
flow
temperature monitoring
rod
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PCT/CN2017/080328
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English (en)
French (fr)
Inventor
王树众
张忠清
张茜
马立伟
陈林
孟海鱼
景泽锋
蔡建军
于鹏飞
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西安交通大学
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Application filed by 西安交通大学 filed Critical 西安交通大学
Priority to US16/318,085 priority Critical patent/US11079179B2/en
Publication of WO2018157452A1 publication Critical patent/WO2018157452A1/zh

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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
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/15—Tapping equipment; Equipment for removing or retaining slag
    • 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
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/15—Tapping equipment; Equipment for removing or retaining slag
    • F27D3/1509—Tapping equipment
    • F27D3/1536—Devices for plugging tap holes, e.g. plugs stoppers
    • 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
    • F27D19/00—Arrangements of controlling devices
    • 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
    • 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
    • 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
    • F27D19/00—Arrangements of controlling devices
    • F27D2019/0003—Monitoring the temperature or a characteristic of the charge and using it as a controlling value

Definitions

  • the invention relates to the technical field of liquid slag waste heat recovery, in particular to a secondary liquid slag buffer system with flow temperature monitoring and control function.
  • the slag method is currently the most common blast furnace slag treatment method in China.
  • the slag method releases a large amount of water vapor when the slag is cooled, and does not recover the high-quality waste heat resources contained in the blast furnace slag; at the same time, a large amount of H 2 S and SO 2 gas are released, and the steam is discharged into the environment, causing an environment such as acid rain. Problem; wasting a lot of water and extra energy consumption.
  • These treatment methods have been unable to meet the urgent needs of energy conservation and emission reduction in the current steel industry. An efficient, non-polluting new technology must be sought to effectively recover blast furnace slag waste heat resources.
  • the high-temperature slag cup granulation recovery system is a system for recovering the high-temperature sensible heat of the slag.
  • the flow control of the slag is a key part of the system, and the flow control of the slag is not good, which will affect the subsequent particles. The process is continuously and steadily carried out.
  • the object of the present invention is to provide a two-stage liquid slag buffering system with flow temperature monitoring and control function, which can realize liquid slag buffering, flow control and heat supplementing functions, and continuously stabilize liquid slag for subsequent granulation process. Can be widely It is applied to liquid slag granulation waste heat recovery system.
  • a two-stage liquid slag buffering system with flow temperature monitoring and control function comprising a slag bag shell, a plug rod, a slag tube and a sealing cover; the upper portion of the slag bag shell has a slag opening, and the bottom side has a plurality of outlets
  • the slag mouth, the slag outlet is composed of a seat brick and a sizing nozzle; a slag outlet correspondingly is provided with a plug rod, the plug rod includes a plug rod head, a plug rod rod and a stopper rod control device, and the seat brick is provided with a joint seat
  • the brick flow channel and the sizing nozzle accommodating cavity are installed in the sizing nozzle accommodating cavity; one end of the block flow passage is connected to the inner cavity of the slag bag housing for slag, and the other end is connected with the sizing nozzle.
  • the inlet of the flow passage in the canal; the plug rod is connected at one end to the stopper head, and the other end is connected to the stopper control device; the stopper control device is used to control the flow area between the stopper head and the sizing nozzle; A sealing cover is arranged, and a slag tube is arranged at the bottom of the sealing cover.
  • the top of the slag bag outer casing is provided with a non-contact liquid level monitoring device and a burner for monitoring the liquid slag liquid level in the slag bag and the replenishing heat of the liquid slag.
  • the top of the sealed cover housing is provided with a non-contact temperature monitoring device and a non-contact liquid level monitoring device, the side surface and the top surface of the sealing cover can be opened, and the sealing cover is sealingly connected with the slag package outer flange.
  • the sizing nozzle and the plug head are made of a refractory material resistant to corrosion and abrasion, and the plug rod is made of a high temperature resistant metal material, and the plug rod is screwed to the plug head.
  • the slag pipe is covered with an insulating material.
  • the stopper rod is disposed outside the slag bag, the plug rod is at an angle of 10°-30° with the horizontal direction, and the flow passage in the sizing nozzle is a non-equal-section flow passage which is gradually tapered and gradually expanded; the sizing nozzle inflow
  • the angle between the upper part of the tapered section of the road inlet and the horizontal direction is 100°-110°, and the angle between the lower part of the tapered section of the inlet of the channel inlet and the horizontal direction is 15°-25°, and the angle of the outlet of the runner in the diameter of the runner is In the inverted conical structure, the angle between the upper part of the diverging section and the horizontal direction is 15°-25°, and the angle between the lower part of the diverging section and the horizontal direction is 5°-15°.
  • the stopper control device feeds forward to reduce the flow between the stopper head and the sizing nozzle The flow area, in turn, reduces the slag flow rate; when the flow rate is lower than the set value, the stopper control device is given backwards to expand the flow area between the plug head and the sizing nozzle flow path, thereby increasing the slag flow rate.
  • the slag tube is disposed at the side of the slag bag outer casing.
  • the present invention has the following beneficial effects:
  • the slag package shell of the invention can satisfy the liquid slag buffering, flow control and heat supplement function, ensure the physical properties of the liquid slag within the required range, realize the continuous long-term operation of the liquid slag granulation, and realize the industrialization of the liquid slag granulation.
  • the stopper rod is disposed on the side of the slag package, and the rod head is in direct contact with the liquid slag, thereby avoiding the erosion of the liquid slag on the stopper rod, and the service life of the stopper rod can be greatly extended.
  • the plug head When the plug head is eroded by liquid slag, it can be adjusted by the stopper rod actuator to push the plug head into the sizing nozzle to maintain the control of the liquid slag flow rate and further improve the service life of the plug rod.
  • the liquid slag flow control of the invention controls the flow area between the stopper head and the sizing nozzle through the stopper rod control device, and adjusts the slag liquid level in the slag discharge pipe, thereby greatly eliminating the slag liquid level in the slag package.
  • the change causes a large fluctuation in traffic, which stabilizes the flow of the entire cache process and meets the traffic requirements of the subsequent granulation stage.
  • the upper liquid level monitoring device of the sealing cover of the invention measures the liquid level in the falling slag pipe, and can calculate the instantaneous flow rate of the slag in the falling slag pipe by the flow calculation instrument, and correlate the motor speed of the granulation system to achieve the optimal granulation effect.
  • the upper temperature monitoring device of the sealing cover of the invention can be associated with the motor speed of the granulation system and the upper burner of the slag pack. According to the slag temperature, the heating power of the burner is adjusted to ensure that the liquid slag temperature meets the system requirements and the energy consumption of the heat is reduced; according to the liquid slag temperature, the motor speed can be adjusted to achieve an optimal granulation effect.
  • the liquid level monitoring device above the slag cover of the invention can alarmly close the upper slag inlet when the liquid slag liquid level reaches the warning liquid level, and ensure that there is sufficient safety height in the slag bag to prevent accidents such as slag and increase Operational security.
  • the burner above the cover of the invention can bake the slag bag, open in time when the liquid slag temperature is lower than the warning temperature, and replenish the liquid slag to ensure the viscosity of the liquid slag in the slag package prevents condensation Accidents such as slag occur to improve the stability of operation.
  • FIG. 1 is a schematic structural view of a secondary liquid slag buffer system with a flow temperature monitoring control function according to the present invention
  • Figure 2 is a right side view of Figure 1;
  • Figure 3 is a partial enlarged view of the sizing nozzle.
  • the present invention provides a secondary liquid slag buffer system with flow temperature monitoring and control functions, including a slag pack shell 1, a sizing nozzle 6, a plug head 7, and a stopper rod control.
  • Mechanism 8 slag tube 11 and sealing cover 10.
  • the slag bag outer casing 1 has a slag opening 12 at the upper portion, and one or more slag discharging ports at the bottom.
  • the slag discharging port is composed of a seat brick 100 and a sizing nozzle 6; a slag opening correspondingly is provided with a plug rod, and the plug rod includes a plug rod
  • the seat brick is provided with a communicating brick flow passage 101 and a sizing nozzle receiving cavity 102, and the sizing nozzle is installed in the sizing nozzle receiving cavity;
  • One end of the brick flow passage is connected to the inner cavity of the slag bag housing for slag, and the other end is connected to the inlet of the sizing port of the sizing nozzle;
  • the plug rod is connected at one end to the plug head, and the other end is connected to the plug control device;
  • the stopper control device is used to control the flow area between the stopper head and the sizing nozzle.
  • a corresponding sealing cover 10 is disposed outside the sizing nozzle 6, and a slag discharging pipe 11 is installed at the bottom of the sealing cover;
  • the slag bag outer casing 1 is made of a high temperature refractory material and a steel casing.
  • the liquid slag flows from the slag inlet 12 above the slag bag and is temporarily stored in the slag bag.
  • the liquid slag flows from the bottom side of the slag bag casing 1 through the sizing nozzle 6 into the slag pipe 11 through the sealing cover 10, and then flows to the bottom. Granulation system.
  • the stopper rod is arranged outside the slag bag, the plug rod is at an angle of 10°-30° with the horizontal direction, and the flow passage of the sizing nozzle 6 is tapered first.
  • a divergent non-equal cross-section flow path The angle between the upper part of the tapered section of the inlet of the runner and the horizontal direction is 100°-110°, and the angle between the lower part of the tapered section of the inlet of the sizing nozzle and the horizontal direction is 15°-25°, and the inner passage of the canal
  • the diverging section of the outlet is an inverted conical structure, and the angle between the upper part of the diverging section and the horizontal direction is 15°-25°, and the angle between the lower part of the diverging section and the horizontal direction is 5°-15°.
  • the stopper control device 8 feeds forward, reducing the flow area between the stopper head 7 and the sizing nozzle flow path, thereby reducing the slag flow rate.
  • the stopper control device 8 is given backward, and the flow area between the stopper head 7 and the sizing nozzle flow passage is enlarged, thereby increasing the slag flow rate.
  • the block brick, the sizing nozzle and the plug head material are high-temperature corrosion-resistant and refractory materials, and the plug rod is made of high-temperature resistant metal material.
  • the stopper head 7 When the stopper head 7 is abraded by the slag, it can be adjusted by the stopper control device 8, and the stopper head 7 is fed into the sizing nozzle 6, and the control of the slag flow rate by the stopper rod is maintained, and the service life of the stopper rod is prolonged. .
  • the cannon can be used to block the passage of the slag hole block brick 100, and the sizing nozzle 6 and the plug head 7 can be quickly replaced, which has less influence on the operation of the system.
  • the slag tube liquid level detecting device 4 is installed on the top of the sealing cover 10 to detect the liquid slag liquid level in the slag tube 11, and the liquid slag instantaneous flow rate is fed back to the stopper rod control device 8 by the flow rate calculator.
  • the stopper control device 8 feeds forward, reducing the flow area between the stopper head 7 and the sizing nozzle 6, thereby reducing the flow rate of the liquid slag.
  • the stopper head 7 is a special refractory material which is resistant to corrosion by high temperature
  • the stopper rod 9 is made of a high temperature resistant metal material.
  • the non-contact liquid level monitoring device 2 on the upper part of the slag bag outer casing 1 monitors the liquid level height in the slag bag in real time, and can calculate the instantaneous liquid slag buffer amount in the slag bag through the liquid level calculation, thereby adjusting and distributing the liquid slag flow rate. And when the liquid slag liquid level reaches the warning liquid level, the alarm will close the upper slag inlet in time to ensure that there is enough safety height in the slag bag to prevent accidents such as slag.
  • the non-contact temperature monitoring device 5 is installed on the top of the sealing cover 10, and the burner 3 is installed on the top of the slag bag casing.
  • the temperature of the liquid slag in the slag pipe 11 is monitored and fed back to the burner 3, and the opening of the burner 3 is associated with
  • the heating power is supplemented; the instantaneous temperature of the liquid slag is fed back to the granulation system to adjust the motor speed in time.
  • the sealing cover 10 and the slag tube 11 are covered with a heat insulating material to reduce heat dissipation and ensure the temperature of the liquid slag.
  • the slag buffer system adopts a slag discharging method from the side of the slag bag instead of the bottom portion, and the slag flow rate is controlled by the sizing nozzle 6 and the plug head 7 at the side slag outlet, and the slag pipe 11 is set at The slag pack 1 is side-mounted rather than the bottom, and the slag pack 1 and the slag tube 11 are connected by a sealing cover 10.
  • the structure is convenient for controlling the flow rate and is easy to maintain and replace the sizing nozzle and the slag tube, thereby avoiding the disadvantage that the slag is discharged from the bottom of the slag package and the slag tube is difficult to be replaced and maintained, and the continuity stability of the system is enhanced.

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Abstract

一种带有流量温度监测及控制功能的二级液态熔渣缓存系统，包括渣包外壳（1）、塞棒、落渣管（2）和密封罩（10）；渣包外壳（1）的上部有进渣口（12），底部侧面设有若干出渣口，出渣口由座砖（100）与定径水口（6）组成；出渣口中设有塞棒，塞棒包括塞棒头（7）、塞棒杆（9）和塞棒控制装置（8），座砖上设有连通的座砖流道（101）和定径水口容置腔（102），定径水口安装于定径水口容置腔内；座砖流道连通渣包外壳和定径水口的定径水口内流道的入口；塞棒杆连接塞棒头和塞棒控制装置；塞棒控制装置用于控制塞棒头与定径水口之间的通流面积；定径水口外设置密封罩（10），密封罩底部设置落渣管（11）。该系统可实现液态熔渣暂存、流量温度监测及控制功能，使液态熔渣连续稳定进行后续粒化过程，可广泛应用于液态熔渣粒化余热回收系统。

Description

一种带有流量温度监测及控制功能的二级液态熔渣缓存系统 技术领域
本发明涉及液态熔渣余热回收技术领域，特别涉及带有流量温度监测及控制功能的二级液态熔渣缓存系统。
背景技术
中国目前是全球最大的钢铁生产国，钢铁产量已连续17年保持世界第一。2014年中国生铁产量达到7.11亿吨，约占世界总产量的60％，在冶炼生铁的过程中同时会产生蕴含巨大热量的液态熔渣。液态熔渣的出炉温度一般在1400～1550℃之间，每吨渣含(1260～1880)×103kJ的显热，相当于60kg标准煤。在我国现有的炼铁技术下，每生产1吨生铁副产0.3吨液态熔渣，以目前我国生铁产量7.11亿吨进行计算，可折合产生2.13亿吨以上的液态熔渣，其显热量相当于1278万吨标准煤。
水渣法是目前我国最常见的高炉渣处理方法。水渣法对渣降温时放出大量水蒸气，未回收高炉渣所含有的高品质余热资源；同时释放出大量的H2S和SO2气体，随着蒸汽排入到环境中，引起酸雨等环境问题；浪费大量水资源，且额外的能源消耗。这些处理方式已不能适应目前钢铁行业节能减排的迫切需求。必须寻求一种高效、无污染的新技术对高炉渣余热资源进行有效回收。
高温熔渣转杯粒化回收系统是一种系统对熔渣的高温显热进行回收的系统，然熔渣的流量控制是系统关键的一环，熔渣的流量控制不好，会影响后续粒化过程连续稳定进行。
发明内容
本发明的目的在于提供一种带有流量温度监测及控制功能的二级液态熔渣缓存系统，能够实现液态熔渣缓存、流量控制、补热功能，使液态熔渣连续稳定进行后续粒化过程，可广泛 应用于液态熔渣粒化余热回收系统。
为了实现上述目的，本发明采用的技术方案是：
一种带有流量温度监测及控制功能的二级液态熔渣缓存系统，包括渣包外壳、塞棒、落渣管和密封罩；渣包外壳的上部有进渣口，底部侧面设有若干出渣口，出渣口由座砖与定径水口组成；一个出渣口对应设置一个塞棒，塞棒包括塞棒头、塞棒杆和塞棒控制装置，座砖上设有相互连通的座砖流道和定径水口容置腔，定径水口安装于定径水口容置腔内；座砖流道一端连通渣包外壳内部容置熔渣的内腔，另一端连通定径水口的定径水口内流道的入口；塞棒杆一端连接塞棒头，另一端连接塞棒控制装置；塞棒控制装置用于控制塞棒头与定径水口之间的通流面积；定径水口外设置密封罩，密封罩底部设置落渣管。
进一步的，渣包外壳的顶部设置有非接触式液位监测装置和燃烧器，用于监测渣包内的液态熔渣液位和液态熔渣的补热。
进一步的，密封罩外壳的顶部设置有非接触式温度监测装置和非接触式液位监测装置，密封罩侧面与顶面能够开启，密封罩与渣包外壳法兰密封连接。
进一步的，定径水口、塞棒头为抗腐蚀磨蚀的耐火材料制成，塞棒杆为耐高温金属材料制成，塞棒杆与塞棒头螺纹连接。
进一步的，落渣管外包覆保温材料。
进一步的，塞棒设置在渣包外部，塞棒与水平方向呈10°-30°夹角，定径水口内流道为先渐缩后渐扩的非等截面流道；定径水口内流道入口渐缩段上部与水平方向夹角为100°-110°，径水口内流道入口渐缩段下部与水平方向夹角为15°-25°，径水口内流道出口渐扩段为倒圆锥形结构，渐扩段上部与水平方向夹角为15°-25°，渐扩段下部与水平方向夹角为5°-15°。
进一步的，流量超过设定值时，塞棒控制装置向前给进，减小塞棒头与定径水口流道间 的流通面积，进而减小熔渣流量；流量低于设定值时，塞棒控制装置向后给出，扩大塞棒头与定径水口流道间的流通面积，进而增加熔渣流量。
进一步的，落渣管设置在渣包外壳侧部。
相对于现有技术，本发明具有以下有益效果：
本发明中渣包外壳可满足液态熔渣缓存、流量控制、补热功能，保证液态熔渣物性在要求范围内，实现液态熔渣粒化连续长期运行，实现液态熔渣粒化工业化。
本发明中塞棒设置在渣包侧面，棒头与液态熔渣直接接触，避免了液态熔渣对塞棒杆的侵蚀，可大大延长塞棒使用寿命。当塞棒头受液态熔渣侵蚀磨蚀后，可通过塞棒执行机构调节，向定径水口内推进塞棒头，继续保持对液态熔渣流量的控制，进一步提高塞棒的使用寿命。
本发明所述液态熔渣流量控制，通过塞棒控制装置改变塞棒头与定径水口间通流面积，调节落渣管内的熔渣液位，可大大消除因渣包内熔渣液位的改变而导致流量的大幅波动，使整个缓存过程流量稳定，满足后续粒化阶段的流量要求。
本发明所述密封罩上部液位监测装置对落渣管内液位测量，可通过流量计算仪计算落渣管内熔渣的瞬时流量，关联粒化系统电机转速，达到最优粒化效果。
本发明所述密封罩上部温度监测装置，可关联粒化系统电机转速和渣包上部燃烧器。根据熔渣温度调节燃烧器的补热功率，以保证液态熔渣温度满足系统要求，并减小补热的能耗；根据液态熔渣温度可调节电机转速，达到最优粒化效果。
本发明所述渣包盖上方液位监测装置，可在液态熔渣液位达到警戒液位时报警及时关闭上方进渣口，保证渣包里有足够的安全高度防止溢渣等事故发生，提高运行的安全性。
本发明所述包盖上方燃烧器，可对渣包进行烘烤，在液态熔渣温度低于警戒温度时及时开启，对液态熔渣进行补热，保证渣包内的液态熔渣粘度防止凝渣等事故发生，提高运行的稳定性。
附图说明
下面结合附图和具体实施方式对本发明做进一步详细说明。
图1为本发明一种带有流量温度监测控制功能的二级液态熔渣缓存系统的结构示意图；
图2为图1的右视图；
图3为定径水口处局部放大图。
示意图中的标号说明：
1、渣包外壳；2、渣包液位监测装置；3、燃烧器；4、落渣管液位监测装置；5、温度监测装置；6、定径水口；7、塞棒头；8、塞棒控制装置；9、塞棒杆；10、密封罩；11、落渣管；12、进渣口。
具体实施方式
请参阅图1至图3所示，本发明一种带有流量温度监测及控制功能的二级液态熔渣缓存系统，包括渣包外壳1、定径水口6、塞棒头7、塞棒控制机构8、落渣管11和密封罩10。
渣包外壳1上部有进渣口12，底部有一个或多个出渣口，出渣口由座砖100与定径水口6组成；一个出渣口对应设置一个塞棒，塞棒包括塞棒头7、塞棒杆9和塞棒控制装置8，座砖上设有相互连通的座砖流道101和定径水口容置腔102，定径水口安装于定径水口容置腔内；座砖流道一端连通渣包外壳内部容置熔渣的内腔，另一端连通定径水口的定径水口内流道的入口；塞棒杆一端连接塞棒头，另一端连接塞棒控制装置；塞棒控制装置用于控制塞棒头与定径水口之间的通流面积。定径水口6外侧设置有对应的密封罩10，密封罩的底部安装有落渣管11；渣包外壳1由高温耐火材料与钢壳制成。液态熔渣从渣包上方进渣口12流入，并暂存于渣包中，液态熔渣从渣包外壳1底部侧面通过定径水口6经密封罩10流入落渣管11，再流至下方粒化系统。
塞棒设置在渣包外部，塞棒与水平方向呈10°-30°夹角，定径水口6内流道为先渐缩后 渐扩的非等截面流道。径水口内流道入口渐缩段上部与水平方向夹角为100°-110°，定径水口内流道入口渐缩段下部与水平方向夹角为15°-25°，径水口内流道出口渐扩段为倒圆锥形结构，渐扩段上部与水平方向夹角为15°-25°，渐扩段下部与水平方向夹角为5°-15°。流量过大时，塞棒控制装置8向前给进，减小塞棒头7与定径水口流道间的流通面积，进而减小熔渣流量。流量过小时，塞棒控制装置8向后给出，扩大塞棒头7与定径水口流道间的流通面积，进而增加熔渣流量。座砖、定径水口、塞棒头材料为高温抗腐蚀磨蚀的耐火材料，塞棒杆由耐高温金属材料制成。
当塞棒头7受熔渣侵蚀磨蚀后，可通过塞棒控制装置8调节，向定径水口6内给进塞棒头7，继续保持塞棒对熔渣流量的控制，延长塞棒使用寿命。当定径水口6与塞棒头7腐蚀较严重无法使用时，可用炮泥堵住出渣口座砖100的通道，快速更换定径水口6及塞棒头7，对系统运行的影响较小。
密封罩10顶部安装落渣管液位检测装置4，检测落渣管11内的液态熔渣液位，通过流量计算仪得到液态熔渣瞬时流量反馈给塞棒控制装置8。液位过高时，塞棒控制装置8向前给进，减小塞棒头7与定径水口6间的流通面积，进而减小液态熔渣流量。塞棒头7为高温抗腐蚀磨蚀的特种耐火材料，塞棒杆9由耐高温金属材料制成。
渣包外壳1上部的非接触式液位监测装置2实时监测渣包里液位高度，可通过液位计算得到渣包内的瞬时液态熔渣缓存量，从而对液态熔渣流量进行调整分配，并在液态熔渣液位达到警戒液位时报警及时关闭上方进渣口，保证渣包里有足够的安全高度防止溢渣等事故发生。
密封罩10顶部安装非接触式温度监测装置5，渣包外壳顶部安装燃烧器3，通过对落渣管11内液态熔渣温度的监测，反馈至燃烧器3，并关联燃烧器3的开启及补热功率；同时将液态熔渣瞬时温度反馈给粒化系统，及时调整电机转速。密封罩10及落渣管11外包覆保温材料，以减小散热，保证液态熔渣温度。
本熔渣缓存系统采用从渣包侧面而非底部的出渣方式，在侧面出渣口处采用了定径水口6与塞棒头7配合的方式控制出渣流量，将落渣管11设置在渣包外壳1侧部而非底部，并通过密封罩10连接渣包外壳1与落渣管11。此结构便于控制流量并易于维护更换定径水口及落渣管，避免了现有技术中熔渣从渣包底部出渣导致落渣管不易更换维护的缺点，增强了系统的连续性稳定性。
最后应说明的是：以上实施方式仅用以说明本发明而非限制本发明所描述的技术方案；因此，尽管本说明书参照上述的各个实施方式对本发明已进行了详细说明，但是，本领域的普通技术人员应当理解，仍然可以对本发明进行修改或等同替换；而一切不脱离本发明的精神和范围的技术方案及其改进，其均应涵盖在本发明的权利要求范围中。

Claims (8)

  1. 一种带有流量温度监测及控制功能的二级液态熔渣缓存系统，其特征在于：包括渣包外壳(1)、塞棒、落渣管(11)和密封罩(10)；渣包外壳(1)的上部有进渣口(12)，底部侧面设有若干出渣口，出渣口由座砖(100)与定径水口(6)组成；一个出渣口对应设置一个塞棒，塞棒包括塞棒头(7)、塞棒杆(9)和塞棒控制装置(8)，座砖上设有相互连通的座砖流道(101)和定径水口容置腔(102)，定径水口安装于定径水口容置腔内；座砖流道一端连通渣包外壳内部容置熔渣的内腔，另一端连通定径水口的定径水口内流道的入口；塞棒杆一端连接塞棒头，另一端连接塞棒控制装置；塞棒控制装置用于控制塞棒头与定径水口之间的通流面积；定径水口(6)外设置密封罩(10)，密封罩(10)底部设置落渣管(11)。
  2. 根据权利要求1所述的一种带有流量温度监测及控制功能的二级液态熔渣缓存系统，其特征在于：渣包外壳(1)的顶部设置有非接触式液位监测装置(2)和燃烧器(3)，用于监测渣包内的液态熔渣液位和液态熔渣的补热。
  3. 根据权利要求1或2所述的一种带有流量温度监测及控制功能的二级液态熔渣缓存系统，其特征在于：密封罩(10)外壳的顶部设置有非接触式温度监测装置(5)和非接触式液位监测装置(4)，密封罩(10)侧面与顶面能够开启，密封罩(10)与渣包外壳(1)法兰密封连接。
  4. 根据权利要求1所述的一种带有流量温度监测及控制功能的二级液态熔渣缓存系统，其特征在于：定径水口(6)、塞棒头(7)为抗腐蚀磨蚀的耐火材料制成，塞棒杆(9)为耐高温金属材料制成，塞棒杆(9)与塞棒头(7)螺纹连接。
  5. 根据权利要求1所述的一种带有流量温度监测及控制功能的二级液态熔渣缓存系统，其特征在于：落渣管(11)外包覆保温材料。
  6. 根据权利要求1所述的一种带有流量温度监测及控制功能的二级液态熔渣缓存系统，其特征在于：塞棒设置在渣包外部，塞棒与水平方向呈10°-30°夹角，定径水口内流道为先 渐缩后渐扩的非等截面流道；定径水口内流道入口渐缩段上部与水平方向夹角为100°-110°，径水口内流道入口渐缩段下部与水平方向夹角为15°-25°，径水口内流道出口渐扩段为倒圆锥形结构，渐扩段上部与水平方向夹角为15°-25°，渐扩段下部与水平方向夹角为5°-15°。
  7. 根据权利要求6所述的一种带有流量温度监测及控制功能的二级液态熔渣缓存系统，其特征在于：流量超过设定值时，塞棒控制装置向前给进，减小塞棒头与定径水口流道间的流通面积，进而减小熔渣流量；流量低于设定值时，塞棒控制装置向后给出，扩大塞棒头与定径水口流道间的流通面积，进而增加熔渣流量。
  8. 根据权利要求1所述的一种带有流量温度监测及控制功能的二级液态熔渣缓存系统，其特征在于：落渣管(11)设置在渣包外壳(1)侧部。
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