Inclined-net vacuum concentration type paper pulp production line

Abstract

The invention discloses an inclined-net vacuum concentration type paper pulp production line. The production line comprises an inclined net headbox and a sieve plate. A liquid inlet pipe used for feeding is arranged on one side of the inclined-net headbox and is connected to a raw material pool through a pipe. A liquid inlet groove is formed in the inner side of the liquid inlet pipe. A weir nozzle located on one side of the liquid inlet groove is arranged on the upper edge of the sieve plate. At least two negative pressure cavities are formed in the inclined-net headbox and located on the inner side of the sieve plate. A dehydration process using a low-pressure axial flow fan is adopted, a traditional pure gravity dehydration mode is changed, and the low-pressure axial flow fan is used for air draft, so that the throughput is greatly increased on the premise that the stability of a slurry process is guaranteed and the production efficiency is remarkably improved. Through the design ofthe inclined-net sieve plate structure and the arc-shaped surface formed by the wedge-shaped rods, the concentration of slurry is increased, the power consumption cost is effectively reduced, and theeffects of energy conservation, consumption reduction and green production are achieved.

Description

technical field [0001] The invention belongs to the technical field of papermaking equipment, and in particular relates to an inclined wire vacuum concentration type pulp production line. Background technique [0002] In the production of pulp and paper, a large amount of water is used as the medium. The water used in the production of pulp and paper contains a large amount of fibers and other substances, most of which can be collected and reused for production. The important process equipment is inclined wire Paper machine, Inclined Screen is a simple, efficient piece of equipment capable of recovering fibers and other particles as short as 350 microns in length from aqueous suspensions, Inclined Screen is compact, has no moving parts and requires minimal maintenance. [0003] In order to meet the current market needs of the continuous development of special paper, inclined wire paper machine has become an indispensable equipment for domestic and foreign paper manufacturers...

AI Technical Summary

Problems solved by technology

[0003] In order to meet the current market needs of the continuous development of special paper, inclined wire paper machine has become an indispensable equipment for domestic and foreign paper manufacturers. , high air permeability and other outstanding features, however, the purchase and maintenance of imported equipment has added a huge burden to the majority of paper companies

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