Bicircular net cage grouting machine

Abstract

The invention discloses a bicircular net cage grouting machine. A driving circular net cage and a driven circular net cage of which the rotating directions are opposite are arranged in a box body, a squeezing area is formed by gaps between the two circular net cages, permeable filtering nets cover both the outer surfaces of the driving circular net cage and the driven circular net cage, a discharging mechanism is arranged above the outer side of the driving circuit net cage or the driven circuit net cage, the principle axis tail end of the driven circular net cage can be rotatably arranged ona cross arm, and a gap adjusting mechanism is arranged on the cross arm. The height of the cross arm is adjusted by adjusting a nut on an adjusting screw, thus the size of the gaps between the drivingcircular net cage and the driven circular net cage is changed, the dryness of drained slurry can be more precisely controlled, the squeezing requirements for different types of slurry and different degrees of dryness are met, blocking due to hard objects is avoided, and a flexile mechanism is added on the rigid basis. By means of the bicircular net cage grouting machine, when the concentration ofslurry in a slurry inlet is 3.5%, the dryness of thick slurry in an outlet can reach 25-30%, and the whole set of device only consumes 2 KWH to process one ton of slurry, which saves 2 / 3 of electricity compared with an existing device.

Description

technical field [0001] The invention relates to the field of pulping equipment in the pulping process of papermaking, in particular to a double-circle cage pulping machine. Background technique [0002] In the process of pulp and paper making, the pulp needs to be dewatered, and the pulp press is used to increase the pulp concentration and separate the waste liquid while washing the pulp. Existing presses include screw presses, double-wire washers and double-roll presses, etc. The screw presses use mechanical direct pressure, so the energy consumption is large, the dewatering efficiency is not high, and the screw shaft is long-term and stable. Slurry friction wear, need to be replaced regularly, and the maintenance cost is high. The double-wire pulp washer relies on multiple pairs of pressure rollers to press and dehydrate the pulp in the double-wire, and the pulp concentration is low. Existing twin-roll presses such as Chinese patent ZL200810017177.7 include moving rolls ...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems of poor adjustment precision of the gap in the press area, easy blockage above the press area, incomplete discharge, high power consumption of the driving device, and large overall energy consumption in the existing production, the applicant provides a double cylinder mesh cage with a reasonable structure. Pulp press machine, the gap between the two rollers can be adjusted manually, the discharge is smooth and thorough, the cleaning method is flexible, water saving, environmental protection, energy saving and consumption reduction

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