What does it mean that there are 22 incense burners on Liu's head?

There are 22 incense burners above the head for others to insert incense. This sentence comes from the era of the emperor of Shanghai. The original text is that the pier of the younger brother is six, and there are 22 incense burners on the top, teacher and teacher Jin. According to Jianghu rules, you can get a dry salary if you lie on a gambling table and get beaten for five minutes without pain.