问题:试分析比较单效蒸发器的间歇蒸发和连续蒸发的生产能力的大小。设原料液浓度、温度、完成液浓度、加热蒸汽压强以及冷凝器操作压强均相等。...
Friday, July 28, 2023
问题:“矮胖”型高炉和多风口,有利于(),有利于顺行。 A、强化冶炼B、高炉长寿C、降低焦比...
Thursday, August 24, 2023
Thursday, March 21, 2024
Friday, March 15, 2024
Monday, October 30, 2023
Saturday, February 18, 2023
问题:容积损失一般为0.85~0.95。水力损失一般为0.8~0.9。()一般为0.96~0.99....
Sunday, March 3, 2024
问题:采用()设备可以显著降低水溶蒸发浓缩的蒸气单耗。矿热电炉是依靠()和()的双重作用,将电能转化成热能。...
Thursday, March 21, 2024
问题:离子交换树脂按基团性质来分,有几大类?用于做什么?...
Thursday, August 24, 2023
问题:多效蒸发的原理是什么,多效蒸发的加料有几种方法?简述每种方法的优缺点。...
Tuesday, June 13, 2023
Saturday, April 29, 2023
Friday, July 28, 2023
Thursday, August 24, 2023
问题:离子交换树脂按基团性质来分,有几大类?用于做什么?...
Thursday, August 24, 2023
Sunday, April 23, 2023
Monday, October 30, 2023
问题:蓄热室工作的好坏,风温,和传热效率的高低,与格子孔大小,形状砖量,等有很大的关系。对格子砖的要求。...
Friday, March 15, 2024
Thursday, March 21, 2024
Friday, March 15, 2024
Monday, September 12, 2022