Roller type squeezing granulator

Abstract

The invention discloses a roller type squeezing granulator. The roller type squeezing granulator comprises a variable frequency motor (1), a hopper (5), an extruding device (6) connected to the top wall in the hopper (5), and a rotating roller (7) arranged below the extruding device (6), wherein the extruding device (6) and the hopper (5) are connected through a flange (4); and a ventilation cap (3) is arranged at the top end of the hopper (5). The device is flexible and convenient for spiral extrusion, and can adjust the screw pitch and other parameters at any time; and a wear resistant layer is arranged on a spiral surface, so that the service life of the machine can be prolonged.

Description

technical field [0001] The invention relates to a roller extrusion granulator. Background technique [0002] Roller extrusion granulator is an important mechanical equipment for producing compound fertilizer with high efficiency and low energy consumption. It has been widely used at home and abroad in recent years. One of the recent advances in the extrusion granulation process is that in order to improve product output and quality, forced feeding is realized with the help of screw propulsion, which is easy to control the feeding speed, increases the bite angle, and increases production; However, the casting screw must adopt precision casting. It is necessary to make a female mold first, then turn over the wax mold, and then make a sand mold after trimming, and then cast it into shape. The process requirements are relatively high, and subsequent machining is also difficult. It is very large, and the helix of one pitch cannot be satisfied. To change the pitch, many models ar...

AI Technical Summary

Problems solved by technology

One of the recent advances in the extrusion granulation process is that in order to improve product output and quality, forced feeding is realized with the help of screw propulsion, which is easy to control the feeding speed, increases the bite angle, and increases production; However, the casting screw must adopt precision casting. It is necessary to make a female mold first, then turn over the wax mold, and then make a sand mold after trimming, and then cast it into shape. The process requirements are relatively high, and subsequent machining is also difficult. It is very large, and the helix of one pitch cannot be satisfied. To change the pitch, many models are needed, which is not convenient for the adjustment of the helix design.

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