CN106222399B - A kind of sintering process monitoring device and sintering machine - Google Patents
A kind of sintering process monitoring device and sintering machine Download PDFInfo
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Abstract
本发明涉及烧结过程监测装置,提供一种烧结过程监测装置及烧结机。其中,烧结过程监测装置用于监测在烧结段上运行的台车中烧结料各层温度的变化过程,包括安装支架、驱动单元和测温单元;安装支架设置在烧结段上方,且安装支架在驱动单元的驱动下沿着烧结段的延伸方向做往复运动;安装支架正向运动时与台车同步;测温单元设置在安装支架上;安装支架正向运动时,测温单元伸入烧结料中并测取烧结料各个料层的温度,且测温完成后所述测温单元上升到所述台车的上方。该方案的烧结过程监测装置能够实时检测烧结料层各阶层的温度,并实时掌握烧结料内燃烧带的下移情况,进而具有节能、提高烧结矿质量和避免其他连锁负面影响的效果。
The invention relates to a sintering process monitoring device and provides a sintering process monitoring device and a sintering machine. Among them, the sintering process monitoring device is used to monitor the temperature change process of each layer of sintering material in the trolley running on the sintering section, including the installation bracket, drive unit and temperature measurement unit; the installation bracket is set above the sintering section, and the installation bracket is in the Driven by the drive unit, it reciprocates along the extension direction of the sintering section; when the mounting bracket moves forward, it is synchronized with the trolley; the temperature measuring unit is set on the mounting bracket; when the mounting bracket moves forward, the temperature measuring unit extends into the sintering material and measure the temperature of each material layer of the sintered material, and after the temperature measurement is completed, the temperature measurement unit rises above the trolley. The sintering process monitoring device of this scheme can detect the temperature of each layer of the sintering material layer in real time, and grasp the downward movement of the combustion zone in the sintering material in real time, thereby saving energy, improving the quality of sintering ore and avoiding other chain negative effects.
Description
技术领域technical field
本发明涉及烧结技术领域,尤其涉及一种烧结过程监测装置及烧结机。The invention relates to the technical field of sintering, in particular to a sintering process monitoring device and a sintering machine.
背景技术Background technique
在现代高炉炼铁工艺流程里,烧结作为给高炉提供合格入炉原料的核心环节,占据着及其重要的地位。其机理是将各种粉状含铁原料,配入一定数量的溶剂及燃料,混合均匀制粒,然后放到烧结设备上点火烧结。在燃料燃烧产生高温和一系列物理化学反应的作用用下,混合料中部分易熔物质发生软化、熔化、产生一定数量的液相并润湿其它未熔化的矿石颗粒,当冷却后,液相将矿粉颗粒粘结成块,所得块状物即为烧结矿。In the modern blast furnace ironmaking process, sintering occupies an extremely important position as the core link of providing qualified incoming raw materials for the blast furnace. Its mechanism is to mix various powdery iron-containing raw materials with a certain amount of solvent and fuel, mix them evenly and granulate them, and then put them on the sintering equipment to ignite and sinter. Under the action of high temperature generated by fuel combustion and a series of physical and chemical reactions, part of the fusible material in the mixture softens and melts to produce a certain amount of liquid phase and wet other unmelted ore particles. After cooling, the liquid phase The ore powder particles are bonded into blocks, and the resulting blocks are sintered ore.
较常见的烧结机如图1所示,若干数量的台车1排布在台车1轨道9上,形成一个密闭的回路系统,在该系统中台车1前后紧密排列同步做着顺时针转动运动。其中,台车1轨道9包括位于风箱2上部的烧结段,烧结段的起始点对应烧结机的机头,烧结段的终点位置对应烧结机的机尾。台车1在烧结机机头位置也就是烧结段的起始点完成烧结料5的装载,并且台车1在烧结机机尾位置也就是烧结段的终点位置完成烧结料5的卸载。A more common sintering machine is shown in Figure 1. A number of trolleys 1 are arranged on the trolley 1 track 9 to form a closed circuit system. In this system, the trolleys 1 are closely arranged front and rear and rotate clockwise synchronously. sports. Wherein, the track 9 of the trolley 1 includes a sintering section located on the top of the bellows 2, the starting point of the sintering section corresponds to the head of the sintering machine, and the end position of the sintering section corresponds to the tail of the sintering machine. The trolley 1 completes the loading of the sintered material 5 at the head position of the sintering machine, that is, the starting point of the sintering section, and the trolley 1 completes the unloading of the sintered material 5 at the tail position of the sintering machine, that is, the end position of the sintering section.
在台车1沿着烧结段运动的同时,位于烧结段下方的风箱2对台车1内装载的烧结料5进行抽风,从而完成烧结过程。风箱2抽风的负压主要来自于主抽风机,在生产时,主抽风机产生强负压,通过大烟道4与风箱支管3,最终将负压传递给风箱2。While the trolley 1 is moving along the sintering section, the wind box 2 located below the sintering section exhausts the sintering material 5 loaded in the trolley 1, thereby completing the sintering process. The negative pressure of the air box 2 mainly comes from the main exhaust fan. During production, the main exhaust fan generates a strong negative pressure, which passes through the large flue 4 and the bellows branch pipe 3, and finally transmits the negative pressure to the bellows 2.
从图2和图3可知,装载在台车1内的烧结料5在经过点火炉7的点火后,形成燃烧带6,在台车1从烧结机头部向机尾运动的同时,燃烧带6受风箱2负压的影响向台车1底部运动。最合理的工况即为台车1从烧结机头运动到机尾时,燃烧带6正好从烧结料5上层运动到底层,此时烧结机整体能耗值最低、烧结矿质量最好。It can be seen from Fig. 2 and Fig. 3 that after the sintering material 5 loaded in the trolley 1 is ignited by the ignition furnace 7, a combustion zone 6 is formed. When the trolley 1 moves from the head of the sintering machine to the tail, the combustion zone 6 6 is affected by the negative pressure of the bellows 2 and moves toward the bottom of the trolley 1. The most reasonable working condition is that when the trolley 1 moves from the sintering head to the tail, the combustion zone 6 just moves from the upper layer of the sintering material 5 to the bottom layer. At this time, the overall energy consumption of the sintering machine is the lowest and the sintering quality is the best.
现有技术烧结机上的台车1沿着烧结段运行时,无法对台车1内烧结料5的烧结过程进行监测,从而导致以下问题:When the trolley 1 on the prior art sintering machine runs along the sintering section, it is impossible to monitor the sintering process of the sintering material 5 in the trolley 1, which leads to the following problems:
工序能耗偏高:烧结机工序能耗主要为固体碳能耗与电耗,而电耗主要为主抽风机的电耗量。在烧结机生产中,主抽风机的电耗量主要受烧结机下部各个风箱2抽风量的影响,如果缺乏烧结过程精准监测手段,就无法实时了解烧结料5层内燃烧带6的下移情况,也就无法准确控制烧结机下部各个风箱2的风门开度,这样就极易造成主抽抽风量严重过剩,形成严重的电耗浪费。主抽变频技术从一定程度上可以有效缓解这种情况,但是缺少了过程精准监测手段,只依靠模型软推测,其精度是远远不够的;Process energy consumption is high: the energy consumption of the sintering machine process is mainly solid carbon energy consumption and electricity consumption, and the electricity consumption is mainly the electricity consumption of the exhaust fan. In the production of sintering machines, the power consumption of the main exhaust fan is mainly affected by the air volume of each bellows 2 in the lower part of the sintering machine. If there is no accurate monitoring means for the sintering process, it is impossible to know the downward movement of the combustion zone 6 in the 5 layers of sintering material in real time Therefore, it is impossible to accurately control the opening of each air box 2 in the lower part of the sintering machine, so that it is very easy to cause a serious excess of the main exhaust air volume, resulting in serious waste of power consumption. The main pump frequency conversion technology can effectively alleviate this situation to a certain extent, but it lacks the means of accurate monitoring of the process, and the accuracy is far from enough if only relying on model soft speculation;
烧结矿质量差:由于无法实时监测烧结料5层内燃烧带6的下移情况,也就无法控制燃烧带6在烧结料5层内各个高度的停留时间。众所周知,烧结矿的转鼓强度、还原性、低温还原粉化率等参数均与最高温度到达点和温度保持时间有关,倘若无法有效控制燃烧带6停留时间,就无法精准掌控烧结矿的焙烧质量,得到的烧结矿质量也必然受到影响;Poor sinter quality: Since the downward movement of the combustion zone 6 in the 5 layers of sinter material cannot be monitored in real time, the residence time of the combustion zone 6 at each height in the 5 layers of sinter material cannot be controlled. As we all know, parameters such as drum strength, reducibility, and low-temperature reduction pulverization rate of sinter are all related to the maximum temperature reaching point and temperature holding time. If the residence time of combustion zone 6 cannot be effectively controlled, the roasting quality of sinter cannot be accurately controlled. , the quality of the obtained sinter will also be affected;
易造成连锁负面影响:由于无法实时监测烧结料5层内燃烧带6的下移情况,有时候会出现烧结矿从烧结机上卸到环冷机上后,还在继续烧结过程的情况,这样会严重影响环冷机的冷却效果,对台车1蓖条、受料槽、皮带等设备也有负面影响。It is easy to cause chain negative effects: because it is impossible to monitor the downward movement of the combustion zone 6 in the 5 layers of sintering material in real time, sometimes the sintering process will continue after the sintering ore is unloaded from the sintering machine to the ring cooler, which will seriously It affects the cooling effect of the ring cooler, and also has a negative impact on equipment such as trolley 1 bar, receiving trough, and belt.
发明内容Contents of the invention
(一)要解决的技术问题(1) Technical problems to be solved
本发明的目的是:提供一种烧结过程监测装置及烧结机,解决现有烧结机烧结过程无法监测导致的工序能耗偏高、烧结矿质量差、损坏设备等问题。The purpose of the present invention is to provide a sintering process monitoring device and a sintering machine to solve the problems of high process energy consumption, poor quality of sintered ore, and damage to equipment caused by the inability to monitor the sintering process of the existing sintering machine.
(二)技术方案(2) Technical solutions
为了解决上述技术问题,本发明提供了一种烧结过程监测装置,用于监测在烧结段上运行的台车中烧结料各层温度的变化过程,包括安装支架、驱动单元和测温单元;所述安装支架设置在所述烧结段上方,且所述安装支架在所述驱动单元的驱动下沿着所述烧结段的延伸方向做往复运动;所述安装支架正向运动时与所述台车同步;所述测温单元设置在所述安装支架上;所述安装支架正向运动时,所述测温单元伸入所述烧结料中并测取所述烧结料各个料层的温度,且测温完成后所述测温单元上升到所述台车的上方。In order to solve the above technical problems, the present invention provides a sintering process monitoring device, which is used to monitor the change process of the temperature of each layer of sintered material in the trolley running on the sintering section, including a mounting bracket, a driving unit and a temperature measuring unit; The mounting bracket is arranged above the sintering section, and the mounting bracket is driven by the driving unit to reciprocate along the extension direction of the sintering section; synchronously; the temperature measuring unit is set on the mounting bracket; when the mounting bracket moves forward, the temperature measuring unit extends into the sintered material and measures the temperature of each material layer of the sintered material, and After the temperature measurement is completed, the temperature measurement unit rises above the trolley.
优选地,所述烧结段上方设置有与其平行的轨道;所述安装支架位于所述轨道上,且在所述驱动单元的驱动下所述安装支架可沿所述轨道往复运动。Preferably, a track parallel to the sintering section is arranged above the sintering section; the installation bracket is located on the track, and driven by the drive unit, the installation bracket can reciprocate along the track.
优选地,所述测温单元包括纵向承力杆、横向固定杆和热电偶;所述纵向承力杆可相对所述安装支架做升降运动,所述横向固定杆安装在所述纵向承力杆的下端;多根所述热电偶沿着所述横向固定杆的轴向分布且与所述横向固定杆垂直相交。Preferably, the temperature measurement unit includes a longitudinal bearing rod, a transverse fixing rod and a thermocouple; the longitudinal bearing rod can move up and down relative to the mounting bracket, and the horizontal fixing rod is installed on the longitudinal bearing rod the lower end; a plurality of said thermocouples are distributed along the axial direction of said transverse fixed rod and perpendicularly intersect with said transverse fixed rod.
优选地,所述热电偶远离所述横向固定杆的端部呈锥状。Preferably, the end of the thermocouple away from the transverse fixing rod is tapered.
优选地,所述纵向承力杆通过升降单元与所述安装支架连接。Preferably, the longitudinal bearing rod is connected to the installation bracket through a lifting unit.
优选地,还包括控制单元、第一限位开关和第二限位开关;所述第一限位开关安装在所述轨道的起点,所述第二限位开关安装在所述轨道的终点,且所述第一限位开关和第二限位开关均与所述控制单元信号连接;所述安装支架运动到所述轨道的起点时触发所述第一限位开关,所述控制单元接收所述第一限位开关发送的第一触发信号并控制所述测温单元伸入所述烧结料中;所述安装支架运动到所述轨道的终点时触发所述第二限位开关,所述控制单元接收所述第二限位开关发送的第二触发信号并控制所述测温单元上升到所述台车的上方。Preferably, it also includes a control unit, a first limit switch and a second limit switch; the first limit switch is installed at the starting point of the track, and the second limit switch is installed at the end of the track, And both the first limit switch and the second limit switch are signal-connected to the control unit; when the mounting bracket moves to the starting point of the track, the first limit switch is triggered, and the control unit receives the The first trigger signal sent by the first limit switch and control the temperature measuring unit to extend into the sintered material; the second limit switch is triggered when the installation bracket moves to the end of the track, the The control unit receives the second trigger signal sent by the second limit switch and controls the temperature measurement unit to rise above the trolley.
优选地,还包括固定在所述安装支架上的第三限位开关和第四限位开关,且所述第三限位开关和第四限位开关均与所述控制单元连接;所述测温单元运动到下极限位置时触发所述第三限位开关,所述控制单元接收所述第三限位开关发送的第三触发信号并控制所述测温单元保持在当前位置;所述测温单元运动到上极限位置时触发所述第四限位开关,所述控制单元接收所述第四限位开关发送的第四触发信号并控制所述测温单元保持在当前位置。Preferably, it also includes a third limit switch and a fourth limit switch fixed on the mounting bracket, and both the third limit switch and the fourth limit switch are connected to the control unit; When the temperature unit moves to the lower limit position, the third limit switch is triggered, and the control unit receives the third trigger signal sent by the third limit switch and controls the temperature measurement unit to maintain at the current position; The fourth limit switch is triggered when the temperature unit moves to the upper limit position, and the control unit receives the fourth trigger signal sent by the fourth limit switch and controls the temperature measurement unit to maintain at the current position.
优选地,所述安装支架的底部通过行走机构安装在所述轨道上。Preferably, the bottom of the installation bracket is installed on the track through a running mechanism.
优选地,所述安装支架呈矩形,包括沿矩形四条边分布的主框架,以及沿着矩形对角线分布的副框架;所述行走机构固定在所述主框架上。Preferably, the mounting bracket has a rectangular shape, including a main frame distributed along four sides of the rectangle, and a sub-frame distributed along a diagonal of the rectangle; the running mechanism is fixed on the main frame.
本发明还提供一种烧结机,包括上述烧结过程监测装置。The present invention also provides a sintering machine, including the above-mentioned sintering process monitoring device.
(三)有益效果(3) Beneficial effects
本发明的技术方案具有以下有益效果:本发明的烧结过程监测装置,用于监测在烧结段上运行的台车中烧结料的温度,包括轨道、安装支架、驱动单元和测温单元;所述轨道设置在烧结段上方,且与所述烧结段平行;所述安装支架与所述驱动单元连接,并在所述驱动单元的驱动下沿着所述轨道往复运动,且所述安装支架正向运动时与所述台车同步;所述测温单元设置在所述安装支架上;所述安装支架正向运动时,所述测温单元伸入所述烧结料中并测取所述烧结料不同深度的温度,且测温完成后所述测温单元上升到所述台车的上方。该方案的烧结过程监测装置能够实时检测烧结料层各阶层的温度,并实时掌握烧结料内燃烧带的下移情况,进而可以实现以下效果:首先,可以根据烧结情况实时控制烧结机下部各个风箱的风门开度,避免主抽抽风量严重过剩导致电耗浪费的情况;其次,可以控制燃烧带在烧结料层内各个高度的停留时间,从而通过控制最高温度到达点和温度保持时间来保证烧结矿焙烧成品质量;最后,可以有效消除类似烧结矿从烧结机上卸到环冷机上后还处于烧结过程这样的负面情况出现。The technical solution of the present invention has the following beneficial effects: the sintering process monitoring device of the present invention is used to monitor the temperature of the sintered material in the trolley running on the sintering section, including a track, a mounting bracket, a driving unit and a temperature measuring unit; The track is set above the sintering section and is parallel to the sintering section; the mounting bracket is connected to the driving unit, and is driven by the driving unit to reciprocate along the track, and the mounting bracket is forward Synchronized with the trolley when moving; the temperature measuring unit is set on the mounting bracket; when the mounting bracket moves forward, the temperature measuring unit extends into the sintering material and measures the sintering material The temperature at different depths, and after the temperature measurement is completed, the temperature measurement unit rises above the trolley. The sintering process monitoring device of this scheme can detect the temperature of each layer of the sintering material layer in real time, and grasp the downward movement of the combustion zone in the sintering material in real time, and then can achieve the following effects: First, the bellows at the lower part of the sintering machine can be controlled in real time according to the sintering situation The opening of the air door can be adjusted to avoid the waste of power consumption caused by the excessive air volume of the main exhaust; secondly, the residence time of the combustion zone at each height in the sinter layer can be controlled, so as to ensure the sintering by controlling the maximum temperature reaching point and temperature holding time. The quality of the roasted product; finally, it can effectively eliminate the negative situation that the sinter is still in the sintering process after it is unloaded from the sintering machine to the ring cooler.
附图说明Description of drawings
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.
图1是现有技术的烧结机的结构示意图;Fig. 1 is the structural representation of the sintering machine of prior art;
图2是现有技术的台车和风箱的安装关系示意图;Fig. 2 is the schematic diagram of the installation relation of trolley and bellows of prior art;
图3是现有技术的台车和点火炉的位置关系示意图;Fig. 3 is a schematic diagram of the positional relationship between the trolley and the ignition furnace of the prior art;
图4是实施例一的烧结过程监测装置在烧结机上的安装示意图;Fig. 4 is a schematic diagram of the installation of the sintering process monitoring device in the first embodiment on the sintering machine;
图5是实施例一的烧结过程监测装置的工作状态示意图;Fig. 5 is a schematic diagram of the working state of the sintering process monitoring device of the first embodiment;
图6是实施例一的安装架的结构示意图;FIG. 6 is a schematic structural view of the mounting bracket of Embodiment 1;
图7是实施例一的烧结过程监测装置的工作原理示意图;Fig. 7 is a schematic diagram of the working principle of the sintering process monitoring device of the first embodiment;
图中:1、台车;2、风箱;3、风箱支管;4、大烟道;5、烧结料;6、燃烧带;7、点火炉;8、移动测温装置;81、主框架;82、副框架;83、行走机构;84、承重台;85、升降单元;86、纵向承力杆;87、横向固定杆;88、热电偶;9、轨道;10、牛腿支架。In the figure: 1. trolley; 2. bellows; 3. bellows branch pipe; 4. large flue; 5. sintering material; 6. combustion zone; 7. ignition furnace; 8. mobile temperature measuring device; 81. main frame; 82. Subframe; 83. Traveling mechanism; 84. Bearing platform; 85. Lifting unit; 86. Longitudinal bearing rod; 87. Horizontal fixing rod; 88. Thermocouple; 9. Track; 10. Corbel bracket.
具体实施方式Detailed ways
下面结合附图和实施例对本发明的实施方式作进一步详细描述。以下实施例用于说明本发明,但不能用来限制本发明的范围。Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but should not be used to limit the scope of the present invention.
在本发明的描述中,需要说明的是,术语“中心”、“纵向”、“横向”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本发明和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本发明的限制。此外,术语“第一”、“第二”、“第三”仅用于描述目的,而不能理解为指示或暗示相对重要性。In the description of the present invention, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.
在本发明的描述中,需要说明的是,除非另有明确的规定和限定,术语“相连”、“连接”应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或一体地连接;可以是机械连接,也可以是电连接;可以是直接相连,也可以通过中间媒介间接相连。对于本领域的普通技术人员而言,可以具体情况理解上述术语在本发明中的具体含义。In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral Ground connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.
实施例一Embodiment one
请参见图4,本实施例一的烧结过程监测装置,用于监测在烧结段上运行的台车1中烧结料5各层温度的变化过程,从而监测烧结机的烧结过程。其中,该烧结过程监测装置包括轨道9和设置在轨道9上并可沿着轨道9的延伸方向运动的移动测温装置8。Please refer to FIG. 4 , the sintering process monitoring device of the first embodiment is used to monitor the change process of the temperature of each layer of the sintering material 5 in the trolley 1 running on the sintering section, so as to monitor the sintering process of the sintering machine. Wherein, the sintering process monitoring device includes a track 9 and a mobile temperature measuring device 8 which is arranged on the track 9 and can move along the extending direction of the track 9 .
请进一步参见图4,轨道9设置在烧结段上方,且与烧结段平行。当然,之所以“轨道9和烧结段平行”主要是为了保证移动测温装置8可以和台车1位置对应,从而方便对移动过程的台车1内的烧结料5进行监测,在满足该要求的基础上,轨道9和烧结段之间的位置关系可以进行适当的调整。Please refer to Fig. 4 further, the track 9 is arranged above the sintering section and parallel to the sintering section. Of course, the reason why the "track 9 is parallel to the sintering section" is mainly to ensure that the mobile temperature measuring device 8 can correspond to the position of the trolley 1, so as to facilitate the monitoring of the sintering material 5 in the trolley 1 during the moving process. On the basis of , the positional relationship between the track 9 and the sintering section can be properly adjusted.
请参见图5,本实施例一在原厂房墙面增设墙面上的牛腿支架10,并将轨道9安装在牛腿支架10上,进而移动测温装置8通过轨道9将重力施加在牛腿支架10上。其中,牛腿支架10只是安装轨道9的一种优选的方式,除此以外任意现有技术中公开的可行的安装方式都可以适用于本实施例一的轨道9的安装当中。Please refer to Fig. 5, the present embodiment one adds the corbel bracket 10 on the wall surface of the original factory building, and the track 9 is installed on the corbel bracket 10, and then the mobile temperature measuring device 8 is applied to the corbel by gravity through the track 9 on the bracket 10. Wherein, the corbel bracket 10 is only a preferred way to install the track 9, other than that, any feasible installation way disclosed in the prior art can be applied to the installation of the track 9 in the first embodiment.
进一步地,移动测温装置8包括安装支架、驱动单元和测温单元。其中,安装支架安装在轨道9上并和驱动单元连接。在驱动单元的驱动下,安装支架可以沿着轨道9往复运动,且安装支架正向运动时与台车1同步。测温单元安装在安装支架上。当安装支架正向运动时,由于安装支架和台车1同步运动,因此安装支架上的测温单元可以伸入烧结料5中并测取烧结料5不同深度的温度。测温完成后,测温单元上升到台车1的上方。Further, the mobile temperature measuring device 8 includes a mounting bracket, a driving unit and a temperature measuring unit. Wherein, the mounting bracket is installed on the track 9 and connected with the driving unit. Driven by the drive unit, the installation bracket can reciprocate along the track 9, and the installation bracket is synchronized with the trolley 1 when moving forward. The temperature measuring unit is installed on the mounting bracket. When the mounting bracket moves forward, since the mounting bracket and the trolley 1 move synchronously, the temperature measuring unit on the mounting bracket can extend into the sintering material 5 and measure the temperature of the sintering material 5 at different depths. After the temperature measurement is completed, the temperature measurement unit rises above the trolley 1.
值得一提的是,在测温单元伸入烧结料5中之后,台车1会带动测温单元正向运动。因此,该过程中即使驱动单元不给安装支架额外施加驱动力,实际上安装支架在测温单元的带动下也会沿着轨道9正向运动。只是在安装支架逆向运动时,驱动单元的驱动力是必须的。It is worth mentioning that after the temperature measuring unit is inserted into the sintered material 5, the trolley 1 will drive the temperature measuring unit to move forward. Therefore, even if the drive unit does not apply additional driving force to the installation bracket during this process, the installation bracket will actually move forward along the track 9 driven by the temperature measurement unit. Only when the mounting bracket moves in reverse, the driving force of the drive unit is necessary.
需要说明的是,测温单元测温完成之后之所以要上升,主要是为了避免与其当前监测的台车1以及烧结段上的其它台车1的运动发生干涉。具体地,台车1即将离开烧结段时,此时台车1需要进行烧结料5的卸载,而其它的台车1也在陆续朝烧结机的机尾位置运动。因此为了避免测温单元影响台车1的卸料和传输,需要将测温单元上升到台车1上方。It should be noted that the reason why the temperature measurement unit rises after the temperature measurement is completed is mainly to avoid interference with the movement of the currently monitored trolley 1 and other trolleys 1 on the sintering section. Specifically, when the trolley 1 is about to leave the sintering section, the trolley 1 needs to unload the sintering material 5, and other trolleys 1 are also moving towards the tail position of the sintering machine one after another. Therefore, in order to prevent the temperature measurement unit from affecting the unloading and transmission of the trolley 1, it is necessary to raise the temperature measurement unit above the trolley 1.
本实施例的测温单元的结构请进一步参见图5,包括纵向承力杆86、横向固定杆87和热电偶88。其中,纵向承力杆86可相对所述安装支架做升降运动,横向固定杆87安装在纵向承力杆86的下端。多根所述热电偶88沿着所述横向固定杆87的轴向分布且与所述横向固定杆87垂直相交。Please refer to FIG. 5 further for the structure of the temperature measurement unit in this embodiment, which includes a longitudinal bearing rod 86 , a lateral fixing rod 87 and a thermocouple 88 . Wherein, the longitudinal bearing rod 86 can move up and down relative to the mounting bracket, and the horizontal fixing rod 87 is installed at the lower end of the longitudinal bearing rod 86 . A plurality of thermocouples 88 are distributed along the axial direction of the transverse fixing rod 87 and perpendicularly intersect the transverse fixing rod 87 .
其中,每根热电偶88的长短不一,从而可以满足对不同料层温度的测量。本实施例一中优选热电偶88按照从长到短的顺序排列,当然该种排列不构成对热电偶88分布的限制。此外,热电偶88的数量根据烧结料5的厚度和台车1的宽度的不同而不同,并且热电偶88的间距也根据烧结料5各个料层的测温需要而进行合理分布。为了方便热电偶88插入到烧结料5中,优选将热电偶88远离横向固定杆87的端部设置成锥状。Wherein, the length of each thermocouple 88 is different, so that the measurement of the temperature of different material layers can be satisfied. In the first embodiment, it is preferable that the thermocouples 88 are arranged in order from the longest to the shortest, and of course this arrangement does not constitute a restriction on the distribution of the thermocouples 88 . In addition, the number of thermocouples 88 varies according to the thickness of the sintered material 5 and the width of the trolley 1 , and the distance between the thermocouples 88 is also reasonably distributed according to the temperature measurement requirements of each layer of the sintered material 5 . In order to facilitate the insertion of the thermocouple 88 into the sintering material 5 , it is preferable to set the end of the thermocouple 88 away from the transverse fixing rod 87 into a tapered shape.
在纵向承力杆86的带动下,横向固定杆87与热电偶88随着纵向承力杆86一起做升降运动。Driven by the longitudinal load-bearing rod 86, the horizontal fixed rod 87 and the thermocouple 88 move up and down along with the longitudinal load-bearing rod 86.
请进一步参见图5,为了实现热电偶88的升降,优选纵向承力杆86通过升降单元85与所述安装支架连接。具体地,在安装支架上设置有承重台84,且升降单元85固定在承重台84上并与纵向承力杆86固定连接。Please refer further to FIG. 5 , in order to realize the lifting of the thermocouple 88 , preferably, the longitudinal bearing rod 86 is connected to the installation bracket through the lifting unit 85 . Specifically, a load-bearing platform 84 is provided on the mounting bracket, and the lifting unit 85 is fixed on the load-bearing platform 84 and fixedly connected with the longitudinal load-bearing rod 86 .
当然,测温单元的结构不受本实施例的限制,只要可以满足对烧结料5各个料层温度的测量即可。Of course, the structure of the temperature measuring unit is not limited by this embodiment, as long as it can satisfy the measurement of the temperature of each material layer of the sintered material 5 .
需要说明的是,安装支架从轨道9的起点运动到轨道9的终点的一个正向运动过程,测温单元完成一次对烧结料5的监测。当安装支架逆向运动并回到轨道9的起点时,测温单元可以开始下一次监测。It should be noted that during a forward movement process of the mounting bracket moving from the starting point of the track 9 to the end point of the track 9 , the temperature measuring unit completes a monitoring of the sintered material 5 once. When the mounting bracket moves in reverse and returns to the starting point of the track 9, the temperature measurement unit can start the next monitoring.
请参见图5,本实施例一中,安装支架的底部通过行走机构83安装在所述轨道9上。行走机构83的形式可以是滚轮、履带等。Please refer to FIG. 5 , in the first embodiment, the bottom of the installation bracket is installed on the track 9 through the running mechanism 83 . The form of running mechanism 83 can be roller, crawler belt etc.
请参见图6,安装支架呈矩形,包括沿矩形四条边分布的主框架81,以及沿着矩形对角线分布的副框架82。将承重台84设置在矩形安装支架的中心位置并且和副框架82连接。并且将行走机构83固定在主框架81上,从而保证安装支架与轨道9之间可相对运动。Referring to FIG. 6 , the mounting bracket is rectangular, including a main frame 81 distributed along the four sides of the rectangle, and a sub-frame 82 distributed along the diagonal of the rectangle. The load-bearing platform 84 is arranged at the center of the rectangular mounting bracket and connected with the sub-frame 82 . And the running gear 83 is fixed on the main frame 81, thereby ensuring relative movement between the mounting bracket and the track 9.
在上述基础上,为了保证测温单元升降运动与安装支架往复运动之间的对应关系,优选本实施例一的烧结过程监测装置还包括控制单元、第一限位开关和第二限位开关。其中,第一限位开关安装在轨道9的起点,第二限位开关安装在轨道9的终点,且第一限位开关和第二限位开关均与控制单元信号连接。Based on the above, in order to ensure the corresponding relationship between the temperature measuring unit's lifting motion and the mounting bracket's reciprocating motion, it is preferred that the sintering process monitoring device of the first embodiment further includes a control unit, a first limit switch and a second limit switch. Wherein, the first limit switch is installed at the starting point of the track 9, the second limit switch is installed at the end point of the track 9, and both the first limit switch and the second limit switch are connected with the control unit signal.
其中,安装支架运动到轨道9的起点时触发第一限位开关,控制单元接收第一限位开关发送的第一触发信号,并根据第一触发信号控制测温单元伸入烧结料5中。并且,当安装支架运动到轨道9的终点时触发第二限位开关,控制单元接收第二限位开关发送的第二触发信号,并根据第二触发信号控制测温单元上升到台车1的上方。其中,为了避免控制的滞后性,优选在安装支架还没有但是即将运动到轨道9的终点的时候触发第二限位开关。Wherein, when the mounting bracket moves to the starting point of the track 9, the first limit switch is triggered, and the control unit receives the first trigger signal sent by the first limit switch, and controls the temperature measuring unit to extend into the sintering material 5 according to the first trigger signal. And, when the installation bracket moves to the end point of the track 9, the second limit switch is triggered, and the control unit receives the second trigger signal sent by the second limit switch, and controls the temperature measurement unit to rise to the bottom of the trolley 1 according to the second trigger signal. above. Wherein, in order to avoid control hysteresis, it is preferable to trigger the second limit switch when the mounting bracket has not yet moved to the end of the track 9 .
进一步地,为了对测温单元升降的上极限位置和下极限位置进行控制,优选本实施例一的烧结过程监测装置还包括固定在安装支架上的第三限位开关和第四限位开关。其中,第三限位开关和第四限位开关均与控制单元连接。当测温单元运动到下极限位置时触发第三限位开关,控制单元接收第三限位开关发送的第三触发信号并控制测温单元保持在当前位置。当测温单元运动到上极限位置时触发所述第四限位开关,控制单元接收第四限位开关发送的第四触发信号并控制所述测温单元保持在当前位置。其中,控制单元可以通过控制升降单元85进而实现对测温单元的上极限位置和下极限位置进行控制。升降单元85可以采用任意现有技术中公开的形式,例如滚珠丝杆、滑轨、升降平台等形式。Further, in order to control the upper limit position and the lower limit position of the temperature measurement unit, it is preferable that the sintering process monitoring device of the first embodiment further includes a third limit switch and a fourth limit switch fixed on the mounting bracket. Wherein, both the third limit switch and the fourth limit switch are connected with the control unit. When the temperature measurement unit moves to the lower limit position, the third limit switch is triggered, and the control unit receives the third trigger signal sent by the third limit switch and controls the temperature measurement unit to maintain at the current position. When the temperature measurement unit moves to the upper limit position, the fourth limit switch is triggered, and the control unit receives the fourth trigger signal sent by the fourth limit switch and controls the temperature measurement unit to maintain at the current position. Wherein, the control unit can control the upper limit position and the lower limit position of the temperature measurement unit by controlling the lifting unit 85 . The lifting unit 85 can adopt any form disclosed in the prior art, such as a ball screw, slide rail, lifting platform and the like.
请参见图7,本实施例一的烧结过程监测装置的工作包括以下步骤:Please refer to Fig. 7, the work of the sintering process monitoring device in the first embodiment includes the following steps:
S1、对安装支架进行复位操作,并当第一限位开关触发时,说明安装支架完成复位;S1. Perform a reset operation on the installation bracket, and when the first limit switch is triggered, it means that the installation bracket has been reset;
S2、通过控制单元控制测温单元下降,并使得热电偶88插入到烧结料5中,直到第三限位开关触发时,说明此时热电偶88以及插入到烧结料5中并可以对烧结料5各个料层进行温度监测;S2. The temperature measuring unit is controlled by the control unit to drop, and the thermocouple 88 is inserted into the sintered material 5 until the third limit switch is triggered, indicating that the thermocouple 88 is inserted into the sintered material 5 and can be used for the sintered material. 5 Temperature monitoring of each material layer;
S3、随着台车1沿着烧结段运动,台车1内燃烧带6从上往下运动,同时驱动单元驱动安装支架和安装支架上的测温单元与台车1同步运动,并且测温单元实时记录各个料层的温度值并反馈到系统数据库,系统进入测温操作;S3. As the trolley 1 moves along the sintering section, the combustion belt 6 in the trolley 1 moves from top to bottom. At the same time, the drive unit drives the mounting bracket and the temperature measuring unit on the mounting bracket to move synchronously with the trolley 1 and measure the temperature. The unit records the temperature value of each material layer in real time and feeds it back to the system database, and the system enters the temperature measurement operation;
S4、第二限位开关触发,说明此时安装支架已经或者即将运动到轨道9的终点(也即对应烧结机的机尾)并且测温完成,通过控制单元控制测温单元上升并使其不与台车1发生干涉;S4, the second limit switch is triggered, indicating that the mounting bracket has or is about to move to the end point of the track 9 (that is, corresponding to the tail of the sintering machine) and the temperature measurement is completed, and the temperature measurement unit is controlled by the control unit to rise and make it not Interference with trolley 1;
S5、第四限位开关触发,说明测温单元的上升动作完成,此时又进入S1。S5. The fourth limit switch is triggered, indicating that the rising action of the temperature measuring unit is completed, and at this time, it enters S1 again.
本实施例一中,在对各个料层的温度数据采集完成后,烧结过程监测装置中的控制单元会自动对周期内的各根热电偶88的温度数据作平滑处理,此周期可以为一天、一周或是一月等。并且,控制单元将自动去掉明显偏高或明显偏低值,再将剩余的数值取平均值导入至各根热电偶88对应数据库内,作为控制的依据。In the first embodiment, after the temperature data collection of each material layer is completed, the control unit in the sintering process monitoring device will automatically smooth the temperature data of each thermocouple 88 in the cycle, and this cycle can be one day, A week or a month etc. Moreover, the control unit will automatically remove obviously high or low values, and then average the remaining values and import them into the database corresponding to each thermocouple 88 as a basis for control.
实施例二Embodiment two
本实施例一不同之处在于,本实施例二的烧结过程监测装置,安装支架安装在移动机构上,并在移动机构的带动下沿着烧结段的延伸方向做往复运动。例如,移动机构可以是平行于烧结段的移动链条、移动绳索或者是移动皮带等。在此基础上,只要控制移动机构沿着烧结段的延伸方向做往复运动,那么安装支架就随着移动机构一起往复运动。The difference of the first embodiment is that, in the sintering process monitoring device of the second embodiment, the mounting bracket is installed on the moving mechanism, and is driven by the moving mechanism to reciprocate along the extension direction of the sintering section. For example, the moving mechanism may be a moving chain, a moving rope or a moving belt parallel to the sintering section. On this basis, as long as the moving mechanism is controlled to reciprocate along the extension direction of the sintering section, the mounting bracket will reciprocate together with the moving mechanism.
对应移动机构为移动链条、移动绳索或者是移动皮带的情况,本实施例二的驱动单元可以是驱动轮。从而,驱动轮转动时,移动机构带动安装支架做直线往复运动。Corresponding to the case where the moving mechanism is a moving chain, a moving rope or a moving belt, the driving unit in the second embodiment may be a driving wheel. Therefore, when the driving wheel rotates, the moving mechanism drives the mounting bracket to perform linear reciprocating motion.
上述实施例的烧结过程监测装置,由于能够实时检测烧结料5层各阶层的温度,并实时掌握烧结料5内燃烧带6的下移情况,进而可以实现以下效果:The sintering process monitoring device of the above-mentioned embodiment can detect the temperature of each layer of the sintering material 5 layers in real time, and grasp the downward movement of the combustion zone 6 in the sintering material 5 in real time, and then can achieve the following effects:
首先,工序能耗偏低:由于能够实时检测烧结料5层各阶层温度,也就实时掌握了烧结料5层内燃烧带6的下移情况,从而可准确控制烧结机下部各个风箱2的风门开度,不会造成主抽抽风量严重过剩,形成严重的电耗浪费的情况。First of all, the energy consumption of the process is low: since the temperature of each layer of the 5 layers of sintering material can be detected in real time, the downward movement of the combustion zone 6 in the 5 layers of sintering material can be grasped in real time, so that the dampers of each bellows 2 in the lower part of the sintering machine can be accurately controlled The opening degree will not cause serious excess air volume of the main exhaust, resulting in serious waste of power consumption.
其次,烧结矿质量高:由于可实时监测烧结料5层内燃烧带6的下移情况,这样就可控制燃烧带6在烧结料5层内各个高度的停留时间;进而通过控制最高温度到达点和温度保持时间来保证烧结矿焙烧成品质量。Secondly, the quality of sintered ore is high: since the downward movement of the combustion zone 6 in the 5 layers of sinter material can be monitored in real time, the residence time of the combustion zone 6 at each height in the 5 layers of sinter material can be controlled; furthermore, by controlling the maximum temperature reaching point And temperature holding time to ensure the quality of sinter roasted products.
最后,不会造成连锁负面影响:由于可实时监测烧结料5层内燃烧带6的下移情况,故可有效消除类似烧结矿从烧结机上卸到环冷机上后还继续处于烧结过程这样的负面情况。Finally, it will not cause chain negative effects: since the downward movement of the combustion zone 6 in the 5 layers of sintering materials can be monitored in real time, it can effectively eliminate the negative effects of the sintering process after the sintering ore is unloaded from the sintering machine to the ring cooler. Happening.
在上述基础上,本申请还提供一种烧结机,包括上述实施例的烧结过程监测装置。该种烧结机较现有技术的烧结机相比更加安全、可靠、实用,且一次投资成本不高,可以预见其在未来市场能有很好的推广前景。On the basis of the above, the present application also provides a sintering machine, including the sintering process monitoring device of the above embodiment. Compared with the prior art sintering machine, this kind of sintering machine is safer, more reliable and more practical, and the one-time investment cost is not high. It can be predicted that it will have a good promotion prospect in the future market.
以上实施方式仅用于说明本发明,而非对本发明的限制。尽管参照实施例对本发明进行了详细说明,本领域的普通技术人员应当理解,对本发明的技术方案进行各种组合、修改或者等同替换,都不脱离本发明技术方案的精神和范围,均应涵盖在本发明的权利要求范围当中。The above embodiments are only used to illustrate the present invention, but not to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications or equivalent replacements of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention, and all should cover Within the scope of the claims of the present invention.
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