Diluted type stirrer

Abstract

The invention relates to a diluted type stirrer which comprises a fixed assembly, a power source, a transmission assembly and a stirring assembly, wherein the power source and the transmission assembly are respectively connected with the fixed assembly, and the stirring assembly and the transmission assembly are connected. In the technical scheme, in order to realize even stirring, the axis of a sun gear is adopted as a stirring revolution axis, the axis of a planet gear is adopted as a stirring rotation axis, revolution and rotation are matched, a stirring center cannot be generated in the diluted pulp size, pulp can be prevented from generating vortex, liquid level difference can be avoided, and the separation of light components from heavy components in the pulp can be prevented; and in addition, winged knives are arranged on an upper stirring paddle and a lower stirring paddle, the protruded surfaces and planes of the winged knives can move in fluid, so as to generate inward pressure under the action of hydromechanics to inward guide the pulp and diluted medium, and thus the fluctuation of the liquid level under the rotation condition can be further avoided.

Description

technical field [0001] The invention belongs to the technical equipment field of pulp dilution for papermaking, and in particular proposes a dilution type agitator. Background technique [0002] At present, most of the pulp tank agitators used in the light industry and papermaking industry need to be used as the foundation, and are only suitable for circulating or stirring low-consistency pulp with a concentration below 6%. When the pulp concentration is higher than 6%, generally The indirect method is used for dilution, that is, it can only be diluted by pumping through the infusion pipes and valves on the surrounding wall of the slurry tank or slurry tower. The installation requires a certain height, nozzle size and quantity, and sealing, and the direction of the nozzles must be strictly controlled. Therefore, Only the slurry and its surface at the side wall of the slurry tank or slurry tower are diluted, the dilution and mixing effect is poor, the circulation efficiency i...

AI Technical Summary

Problems solved by technology

[0002] At present, most of the pulp tank agitators used in the light industry and papermaking industry need to be used as the foundation, and are only suitable for circulating or stirring low-consistency pulp with a concentration below 6%. When the pulp concentration is higher than 6%, generally The indirect method is used for dilution, that is, it can only be diluted by pumping through the infusion pipes and valves on the surrounding wall of the slurry tank or slurry tower. The installation requires a certain height, nozzle size and quantity, and sealing, and the direction of the nozzles must be strictly controlled. Therefore, Only the slurry and its surface at the side wall of the slurry tank or slurry tower are diluted, the dilution and mixing effect is poor, the cycle efficiency is low, the energy consumption of stirring is high, and there is a certain difficulty in installation

Although the dilution device is used in the patent ZL200420083729.1 "A Dilution Agitator", its conical dilution tube will generate a large vortex, the flow loss is large, and it can only reach a certain dilution area, and the dilution and mixing are not very uniform. Insufficient dilution, etc.

Moreover, most of the current mixers are composed of a mixing center. The centrifugal force and centripetal force generated during the mixing process are too large, causing the heavier components in the pulp to converge inward, and the lighter components to diverge outward, resulting in uneven mixing and easy Collect debris in the mixing center

[0003] Moreover, in many vertically suspended agitators, the gravity of the agitating paddles, agitating blades, and the stress generated by agitation are all borne by the output shaft of the power. The pressure of the output shaft is too high, and a large amount of support must be provided for the output shaft during installation. , the mechanical strength requirements of the transmission shaft are high, the processing cost and material requirements are high, the structure of the output shaft is complicated, the difficulty is increased, and the life of the output shaft is reduced. In this case, the output shaft is difficult to replace and the cost is high.

Images