Roller pelletizer for producing controlled-release compound fertilizer with ammonia-acid method

Abstract

The invention provides a roller pelletizer for producing a controlled-release compound fertilizer with an ammonia-acid method. The roller pelletizer comprises a roller, a driven gear arranged on the outer wall of the roller and a driving gear connected onto the output shaft of a driving motor, wherein a charging hole is formed in one end of the roller, and a steam distribution pipe and an ammonia-acid tubular reactor are arranged at the other end of the roller; the roller is internally provided with a pelleting lining, the pelletinglining is internally provided with an air blowing pipeline and a humidity sensor, and the humidity sensor is electrically connected with the controller; a silencing barrel is arranged on the outer side of the middle part of the roller, and the pelletizer is provided with multiple stages of anti-sticking structures: the first stage of anti-sticking structure comprises wavy bulges fixedly arranged in the pelleting lining; the second stage of anti-sticking structure comprises elastic raised lines uniformly distributed on the inner wall of the roller; the third stage of anti-sticking structure comprises convex blocks fixedly arranged on the outer side of two ends of thepelleting lining, vibrating drums are arranged at the corresponding positions above the convex blocks, and the vibrating drums are connected to a hydraulic driving mechanism. The roller pelletizer adopts the multiple stages of anti-sticking structures, the fluidity of particles is improved, and simultaneously a self-adaptive humidity control system is formed, so that the product quality is improved.

Description

technical field [0001] The invention belongs to the technical equipment field of chemical fertilizer manufacturing, and in particular relates to a drum granulator for the production of slow-release compound fertilizer by the amino acid method. Background technique [0002] Chemical fertilizers play an important role in agricultural production, and the quality of chemical fertilizers directly affects the yield of crops. At present, the production process of amino acid compound fertilizer is the mainstream production process widely used by many chemical fertilizer enterprises. During the production process, it is necessary to use a granulator to roll and agglomerate the slurry formed by the neutralization reaction of the powdery solid raw materials and acid into granules. Most of the granulators in this step adopt a drum structure, and the powder materials are placed on the drum In the process, the slurry is sprayed into the drum through the spray pipe, and the slurry falls on...

AI Technical Summary

Problems solved by technology

However, due to the strong viscosity of the material, this traditional granulator is prone to problems such as poor rolling, easy adhesion into large pieces, and low ball formation rate. Its products are easily affected by moisture, so the producti

Images