A pressure roller mobile granulator

Abstract

The invention discloses a pressure roller mobile granulator, which comprises a base, a ring die, a ring die connecting seat, a pressure roller and a pressure roller shaft, the ring die is vertically arranged above the base, the ring die is a moving die, and the inside of the ring die The cavity forms a forming cavity, and the pressure roller is fixed in the forming cavity through the pressure roller shaft. There is a clearance fit between the pressing mechanism, and one end of the pressing roller shaft is connected with the pushing mechanism, which can drive the pressing roller shaft to reciprocate along the axial direction of the pressing roller shaft, and the width of the pressing roller is smaller than the width of the ring die. Compared with the prior art, the present invention has the following advantages: the residence time of the particles in the ring die is lengthened to achieve the effects of graded compression, pressure holding and moisture release; The cost of damaged parts; adjust the roller gap without stopping the machine, high work efficiency, automatic overload control, simple and reliable structure.

Description

technical field [0001] The invention relates to the field of molding and granulation equipment, in particular to a pressure roller mobile granulator. Background technique [0002] The pellet machine can use agricultural and forestry processing waste such as wood chips, straw, rice husk, bark and other biomass as raw materials, and solidify it into high-density pellet fuel through pretreatment and processing, which is an ideal substitute for traditional fossil fuels. It can save energy and reduce waste discharge, and can bring good economic and social benefits. It is an efficient and clean renewable energy. At the same time, the feed can be prepared into feed pellets for breeding. [0003] The common granulator, whether it is a ring die granulator or a flat die granulator, has strict requirements on the moisture content of the feed material. It is often difficult to form and granulate effectively when the moisture content of the raw material is higher than 18%. The yield o...

AI Technical Summary

Problems solved by technology

[0003] The common granulator, whether it is a ring die granulator or a flat die granulator, has strict requirements on the moisture content of the feed material. It is often difficult to form and granulate effectively when the moisture content of the raw material is higher than 18%. The yield of pellet molding is also very low

At this time, it is often necessary to add a drying procedure before feeding, but drying requires additional energy, which leads to high production costs

Moreover, in the existing designs of biomass pellet machines, the pressure roller bearings are usually installed inside the pressure rollers, and the pressure rollers are in the forming cavity. The harsh environment of high temperature, high humidity and high dust in the forming cavity often leads to extreme It is easy to be damaged, and this design requires frequent oiling and maintenance of the pressure roller bearings, which is time-consuming and laborious and the effect is not obvious

In addition, due to the wear of the pressure roller, the existing granulator needs to be shut down frequently to adjust the gap between the pressure roller and the mold, and when the granulator is overloaded, it also needs to be shut down, and the molding cavity material must be cleaned before restarting. It not only takes up a lot of manpower, but also consumes a lot of production time, which invisibly makes the production cost further increase

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