Double supporting rollers-type double circular molds granulator

Abstract

The invention discloses a double supporting rollers-type double circular molds granulator, which comprises a first supporting roller, a first rotating shaft, a first circular mold, a casing, an impeller, an impeller shaft, a hopper, a support, a second circular mold, a second rotating shaft, a second supporting roller, a door cover, a material collecting trough, a first scraper, a second scraper, a first bearing sleeve, a first belt wheel, a residual material groove, a gear reducer, a main motor, a second belt wheel, a second bearing sleeve, a first synchronous belt, a third belt wheel, a first compaction wheel, a second compaction wheel, a fourth belt wheel, a second synchronous belt, and an impeller motor. The double circular molds granulator has the advantages that dismounting and replacing of the circular molds are convenient and fast, the supporting rollers support the circular molds, support rigidity of the circular molds can be greatly increased, the granulator can be used for extruding the difficultly-extruded materials, width of the circular molds can be increased greatly, granulation efficiency is greatly increased; the scraper is employed for cooperating the material collecting trough for collecting the material, the material collecting trough is arranged on the door cover, when the door cover is opened, a cutter on the scraper is dismounted so that the circular molds can be rapidly replaced.

Description

technical field [0001] The invention belongs to the field of granulation machinery, and in particular relates to a double support roller type double ring mold granulator. Background technique [0002] The powder rotary extrusion granulation forming technology is widely used in the fields of feed machinery, biomass energy machinery and pharmaceutical machinery. It is the main way to produce pellet feed and biomass fuel. [0003] The current pellet mills in the feed and biomass fields mainly use the roller-ring mode, that is, the rollers in the ring die press the material into the die hole of the ring die, but since the ring die and the rollers can only be supported by cantilever , and the material to be extruded must be spread into the inner surface of the ring die, and the feeding space is very limited, so it is very difficult to control the feeding amount and feeding uniformity, so the extrusion process is very unstable and the vibration is severe. Since the pressing roll...

AI Technical Summary

Problems solved by technology

[0003] The current pellet mills in the feed and biomass fields mainly use the roller-ring mode, that is, the rollers in the ring die press the material into the die hole of the ring die, but since the ring die and the rollers can only be supported by cantilever , and the material to be extruded must be spread into the inner surface of the ring die, and the feeding space is very limited, so it is very difficult to control the feeding amount and feeding uniformity, so the extrusion process is very unstable and the vibration is severe

Since the pressing roller is a solid round roller, the extrusion force on the die-free hole area on the ring die is very high, and the diameter of the pressing roller must be less than half or more of the ring die, so its energy consumption is high, and the efficiency is difficult to improve. poor control

The emergence of the double-ring die granulation process has found a way to solve the problems of low efficiency, large vibration and low output of the existing granulator. However, the support rigidity of the ring die of the current double-ring die pellet mill is poor, and the feeding, transmission and receiving systems are not perfect, which makes the double-ring die pellet mill unable to be used for extrusion of feed and biomass. powerful field

Moreover, due to the large extrusion force and unstable spacing adjustment, the ring die of the current double-ring die granulator is very narrow, the granulation process is stable, the bearing capacity is low, and the technical level is poor, which greatly weakens the application value of the double-ring die granulator

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