Prepn of powdered briquette adhesive

[0008] The present invention will be further described below in conjunction with embodiment. According to the technical process of the present invention, the 3m 3 Input clean water into the glass-lined reactor 4, heat up to 70-95°C, add 1600kg of humic acid 1 and 220kg of sodium hydroxide 2, and then add a small amount of heat stabilizer 5 and activity accelerator 6. After reacting in the kettle for 60 minutes, the liquid briquette binder 7 with a solid content of 23% and a viscosity of 30 seconds (based on 4 cups) of 5000 kg was obtained. After the centrifugal filtration process 8 is stored in the storage tank 9, the spray drying system is started, and the hot air with a temperature of 300° C. is blown in through the hot air generator 12, and the centrifugal turntable of the spray drying tower 11 is started simultaneously to send the liquid briquette binder 7 to the storage tank 9. Into the centrifugal turntable at the top of the spray drying tower 11, the feed liquid is spraye