Biconical high consistency refiner

Abstract

The invention relates to a biconical high consistency refiner which comprises a machine frame, a main shaft, a refining chamber base, the middle portion of a refining chamber, and a refining chamber cover, wherein a bearing seat is horizontally and fixedly installed on the machine frame, the refining chamber cover, the middle portion of the refining chamber, and the refining chamber base are formed coaxially, the closed refining chamber is defined by the refining chamber cover, the middle portion of the refining chamber, and the refining chamber base, a biconical stator is fixedly installed on the main shaft arranged inside the middle portion of the refining chamber coaxially, a biconical rotor is installed in an inner gap of the biconical stator, and three refiner areas, namely two conical refiner areas arranged in a mirror symmetry mode and a cylindrical refiner area connected in the middle, are formed by the biconical rotor and the biconical stator. The refining chamber cover and the middle portion of the refining chamber can be opened in the radial direction by means of a mechanical arm and a hinge with the refining chamber base as the basis, so that refining chamber maintenance and adhesive disc replacement are facilitated. Under the condition that the effective refining area stays the same, the no-load power consumption of the biconical high consistency refiner is much lower than that of a single-tray high consistency refiner and a three-tray high consistency refiner. Under the condition that the axial length stays the same, the radial size and no-load power consumption of the biconical high consistency refiner are smaller than those of a conical high consistency refiner.

Description

technical field [0001] The invention belongs to the field of papermaking, and relates to pulping and papermaking mechanical equipment, in particular to a double-cone high-consistency pulp refiner. Background technique [0002] High consistency refining is widely used in the pulping process due to its low water consumption, high yield and low energy consumption. At present, commonly used refining machines can be divided into disc-shaped, conical (actually truncated cone-shaped without apex angle) and cylindrical refiners according to the shape of their rotor (turntable). Disc refiners (also known as disc refiners) are mainly divided into single disc refiners, double disc refiners and triple disc refiners. Cone refiners are divided into single cone refiners and triple cone refiners. Small taper (cone angle ≤ 40°) and large taper (cone angle > 40°) two types. Because disc refiners and conical refiners have the common characteristics of low-speed end feed, high-speed end di...

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Problems solved by technology

[0004] In addition, after analysis, there are some problems in the invention of some new conical high-consistency refiners, such as the double-cone high-consistency mill with double-screw feeding (US5383608, 1995-06-24) due to the use of through-shaft, double-screw Th

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