YSK that when you upload images to Imgur with a registered account (free or paid account), in the settings you will find an option to download all of your uploaded images in one go into a .zip file
from /r/YouShouldKnow
YSK，当你用注册账户（免费或付费账户）向Imgur上传图片时，在设置中你会发现一个选项，可以将你上传的所有图片一次性下载到一个.zip文件中。