Vertical high-concentration paste mill

Abstract

The invention discloses a vertical high concentration pulp grinder, comprising a casing, where the middle part in the casing is equipped with main shaft, the bottom end of the main shaft is equipped with big belt pulley, the big belt pulley is connected with the output shaft of an electric machine through belt and small belt pulley, the axis of the output shaft of the electric machine is in parallel with that of the main shaft, the top end of the main shaft is connected with conical rotor core, the conical rotor core is jacketed with rotor sleeve, the outer wall of the rotor sleeve is equipped with rotating teeth, the casing is connected with conical stator, the conical stator is internally equipped with fixed teeth ring, the inner wall of the fixed gear ring is equipped with fixed teeth, the top end of the conical rotor core is equipped with feed rotor, the outer edge of top end of the casing is equipped with a gap regulator for regulating the gaps between teeth end surfaces on the fixed teeth ring and the rotor sleeve. And the invention completes feeding on top and discharging at bottom in the vertical structure, implementing high concentration coarse pulp grinding, having good operating stability, reducing energy consumption, convenient to install and maintain and having low noise.

Description

technical field [0001] The invention relates to papermaking machinery, which is a vertical high-concentration pulp refiner. Background technique [0002] Although there are many structures of the refiner, the main ones used in practice are the disc structure and the cone structure. Their deficiencies are mainly reflected in several aspects: due to the unreasonable structural design of the disc-type refiner, it consumes a lot of energy, and also has problems such as poor running stability, so it is rarely used in this field in recent years; Although the refiner with conical structure has many advantages, it is difficult to achieve high-speed operation because the motor shaft and the main shaft of the refiner are integrated. In addition, because the gap between the stator and the rotor is driven by the spline of the feed mechanism The shaft and then drive the rotor to move, the adjustment accuracy is low, it is difficult to ensure the concentricity and work stability of the s...

AI Technical Summary

Problems solved by technology

Their deficiencies are mainly reflected in several aspects: due to the unreasonable structural design of the disc-type refiner, it consumes a lot of energy, and also has problems such as poor running stability, so it is rarely used in this field in recent years; Although the refiner with conical structure has many advantages, it is difficult to achieve high-speed operation because the motor shaft and the main shaft of the refiner are integrated. In addition, because the gap between the stator and the rotor is driven by the spline of the feed mechanism The shaft and then drive the rotor to move, the adjustment accuracy is low, it is difficult to ensure the concentricity and work stability of the stator and the rotor, and this kind of refining is difficult to feed high-concentration coarse pulp due to structural limitations.

Therefore, there are still many enterprises still using the traditional horizontal refiner. After connecting multiple refiners in series to complete coarse, medium and fine refining, the work efficiency is low and the degree of beating is low.

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