Grinding disc structure of plane-tapered high-concentration pulping machine
A high-consistency refiner, conical technology, applied in pulp beating/refining methods, textiles and papermaking, fiber raw material processing, etc., can solve the problems of increasing refining costs, increasing maintenance man-hours, and fluctuations in pulp quality, etc. Achieve the effect of improving fluidity, simple processing and manufacturing, and high precision
Active Publication Date: 2016-07-20
SHAANXI UNIV OF SCI & TECH
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Problems solved by technology
Frequent replacement of worn stators or stators not only increases maintenance man-hours, causes fluctuations in pulp quality, but also increases refining costs
Method used
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[0022] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0023] Such as figure 1 As shown, a flat-conical high-consistency refiner grinding disc structure includes a static grinding disc 1 and a moving grinding disc 2 that can be nested in each other, and the static grinding disc 1 includes a static grinding disc coarse grinding area 3 and an upper circumference The circular static grinding disc fine grinding area 4, the static grinding disc rough grinding area 3 and the static grinding disc fine grinding area 4 are respectively surrounded by eight grinding disc units 5;
[0024] Such as figure 2 As shown, the movable grinding disc 2 is composed of a crushing area, a rough grinding area and a fine grinding area, and two adjacent grinding plates of the diversion groove form a diversion groove 9 . The inclination of the teeth pattern in the crushing zone and the coarse and fine grinding zone is 15°. When the grind...
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The invention provides a grinding disc structure of a plane-tapered high-concentration pulping machine. The grinding disc structure comprises a static grinding disc and a movable grinding disc, which are in sleeving joint with each other, wherein the static grinding disc comprises a static grinding disc rough grinding region on the lower circumference, and a static grinding disc fine grinding region on the upper circumference; the movable grinding disc comprises a barrel wall; a limiting ring is arranged around the barrel wall; a main shaft is mounted in the barrel wall; the main shaft is provided with a supporting frame and is in matching connection with the limiting ring; the outer side of the barrel wall is divided into upper and lower circumferences by the limiting ring; the lower circumference of the barrel wall is a rough grinding region and is provided with a grinding sheet of the rough grinding region; the upper circumference of the barrel wall is a fine grinding region and is provided with a grinding sheet of the fine grinding region; a flow guide groove is formed between the grinding sheet of the rough grinding region and the grinding sheet of the fine grinding region; a grinding sheet of a crushing region is mounted at the bottom of the barrel wall; slurry enters a grinding cavity formed by the static grinding disc and the movable grinding disc, and a pulping effect is generated due to the acting force of grinding teeth between a rotor and a stator; and steam generated in a pulping process is discharged from the flow guide groove. The grinding disc structure of the plane-tapered high-concentration pulping machine has the characteristics of high efficiency and convenience for replacing the grinding discs and the grinding sheets.
Description
technical field [0001] The invention relates to the technical field of refining equipment in the papermaking process, in particular to a flat-conical high-consistency refining disc structure. Background technique [0002] At present, the demand for pulp in the papermaking industry is increasing day by day. Although the efficiency of the refining process in the papermaking process has been improved, there are still problems in the refining process such as large fluctuations in pulp quality and high replacement costs for grinding discs. The refining elements of a traditional conical refiner include a conical stator and a conical rotor. At present, the refining elements of most conical refiners are integral structures, that is, the conical rotor or the stator are integrally cast and processed. For integrally cast rotors or stators, the service life is generally 30 to 60 days. Frequent replacement of worn stators or stators not only increases maintenance man-hours, causes fluct...
Claims
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IPC IPC(8): D21D1/30
CPCD21D1/306
Inventor 董继先韩鲁冰乔博磊
Owner SHAANXI UNIV OF SCI & TECH