MVME7100-0171自动化工控卡件模块现货

类目：MOTOROLA
型号：MVME7100-0171
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瑞昌明盛进出口贸易有限公司
主营DCS控制系统备件，PLC系统备件及机器人系统备件，
优势品牌：Allen Bradley、BentlyNevada、ABB、Emerson Ovation、Honeywell DCS、Rockwell ICS Triplex、FOXBORO、Schneider PLC、GE Fanuc、Motorola、HIMA、TRICONEX、Prosoft等各种进口工业零部件
MVME7100-0171自动化工控卡件模块现货

转化成CO24%～36%、H260%～70%、CH43%～6%和870℃的还原气。后从风口区吹入竖炉。竖炉断面呈圆形，分为预热段、还原段和冷却段。选用块矿和球团矿原料，从炉顶加料管装入，被上升的热还原气干燥、预热、还原。随着温度升高，还原反映加速，炉料在800℃以上的还原段停留4～6小时。新海绵铁进入冷却段完成终还原和渗碳反应，同时被自下而上通入的冷却气冷却至＜100℃。还原铁的排出速度用出铁器调节。产品典型成分如下：产品化学成分（%）工艺/成分 Tfe ηFe SiO2 Al2O3 CaO MgO C P S Midrex 91-93 92-95 2.0-5.5 0.5-1.5 0.2-1.6 0.3-1.1 0.7-2.5 0.07 0.01 -0.03 工艺多用球团和块矿混合炉料。球团粒度9-16mm占95%，球团冷压强度＞2450N/球，块矿粒度10～35mm占85%；要有高软化温度和中等还原性；化学成分铁量要高，酸性脉石低（≯3%-5%），CaO＜2.5%，MgO＜1.0%，TiO＜0.15%，S＜0.008%。为放宽对矿石含硫要求，Midrex法改用净化炉顶气作冷却气。在冷却海绵铁的同时被热海绵铁脱硫，从冷却段排出后再作为裂化剂，可容许用含硫0.02%矿石。现今Midrex法作业指标为：产品金属化率86%～96%，有效容积利用系数10 t/m3·d，能耗10.47GJ/t，电114kWh/t，水1.64m3/t。 Arex法是Midrex法的新改进，天然气被氧气（或空气）部分氧化后送入竖炉，利用新生热海绵铁催化裂化，省去了还原气重整炉。改进后吨铁电耗可降低50Kwh。（2） HYL（罐式）法与HYL-Ⅲ（竖炉）法。 HYL法由4座罐式反应炉和1座还原气重整炉构成。该工艺作业稳定、设备可靠。产品含碳2%左右，不易再氧化，不发生炉料粘结；只因还原气要反复冷却、加热，系统热效率低，能耗偏高，气体消耗为20.93GJ/t；1975年后再没建新厂。对HYL罐式法作出改革，保留原还原制备工艺，但将还原气重整转化与气体加热合一；4个罐式反应炉改为连续式竖炉，称HYL-Ⅲ竖炉法。该工艺采用高氢还原气，高还原温度（900-960℃）和0.4-0.6MPa高压作业。改善还原动力学，加速还原发应；含硫气不通过重整炉，延长了催化剂和催化管使用寿命；还原和冷却作业分别控制，能对产品金属化率和含碳量进行大范围调节，产品平均金属化率90.9%、控制碳量1.5%-3.0%，质量稳定；配置CO2吸收塔，选择性地脱除还原气中H2O和CO2，提高还原气利用率；重整炉产生高压蒸汽发电。低生产能耗为10.43-11.2 GJ/t，电耗90kWh/t。HYL（罐式）法已逐渐被HYL-Ⅲ（竖炉）法取代，合计产量占世界总产量的25%左右。该法的新改进是天然气进入反应器直接裂解，生产高碳（3.8%）DRI产品。近又推出HYL-Hytemp生产系统。将热还原铁（650℃）气力输送到电炉车间，喷入电炉。冶炼时间缩短，电极和耐火材料消耗降低，金属收率提高。吨钢电耗降低112kW·h，电极消耗降低0.55kg，冶炼时间缩短16min，产率提高16%，吨钢成本可降低4.6美元。 2．2 气基流化工艺（1）F1NMEF工艺该工艺使用<12mm粒度矿粉（脉石<3%，低硅高铁），在流化床上干燥，被加热到100℃，送入反应器结构顶端的闭锁料斗系统中，加压1.1MPa后，通过4个串联液化床反应器，铁粉在重力作用下从上方反应器向下流动，与作为还原剂的重整天然气逆向而行。产品含铁92%，金属化率92%~95%，含碳0.5%~3.0%，以FeC形式存在。现世界上已有三套这种装置，1999年奥钢联建一套，第二套在西澳BNP公司，能力250万吨/年，埃及建的第三套，年能力115万吨。该工艺的优点成本低、质量好。used for adjustment, and some characteristics of the controlled object can be automatically learned and memorized in the adjustment to optimize the effect. It has the characteristics of no overshoot, high precision, simple parameter determination, and good control effect for complex objects. The overall regulation effect is more obvious than the general PID algorithm. This point was verified in the system commissioning. At first, the simple PID regulator produced in Japan was selected. In the process of water consumption change and pump operation and withdrawal, its overshoot and stability time were not ideal. After using ai-808 intelligent instrument, its dynamic and static indexes met the requirements.

Programmable controller

FX1N series programmable controller is selected, and the output is relay type. Because PLC only completes the logic functions such as automatic switching of water pump, there is no need for analog input and output module, so the investment is saved. The pressure closed-loop control of the system is completed by ai-808 artificial intelligence instrument, and the superiority of its algorithm is much higher than the relatively simple PID algorithm in PLC.

Frequency converterEmerson td2000-4t2000p frequency converter is adopted, which is suitable for water pump load. The frequency can be controlled by the current signal output by manual potentiometer or ai-808 regulator. The switching between these two modes is realized by the manual / automatic switch on the console. The multi-function terminal of the frequency converter is defined as the potentiometer current signal control mode.

Console

The system console design takes into account manual and automatic operation modes. In the manual state, each water pump and valve can be opened / stopped separately, and the frequency of the frequency converter can be manually adjusted by multi turn potentiometer; In the automatic mode, the water pump to be put into operation is determined through the selection switch, so that when a water pump is repaired, it can be withdrawn from the automatic operation without affecting the normal operation of the system. In addition to PLC and ai-808 regulator, the console is also equipped with water level indicator, branch pressure indicator and frequency meter.

Parameter setting

Ai-808 regulator provides rich user setting modes, so that it can achieve satisfactory control results for different controls. The parameter setting determines the static and dynamic performance of the system. The parameter setting of the system

RELIANCE

ABB

GE

FOXBORO

EMERSON艾默生

A-B

MOTOROLA

TRICONEX

HONEYWELL霍尼韦尔

HIMA

140系列PLC

BENTLY本特利

其他

SST

EPRO

YOKOGAWA

MOOG

NI

WOODWARD伍德沃德

METSO

KOLLMORGEN科尔摩根

力士乐

ALSTOM阿尔斯通

YASKAWA安川

AMAT

ICS TRIPLEX

新能源系列

EATON

MVME7100-0171自动化工控卡件模块现货

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