Pulp slag removal equipment for cleaning pulp tailings

Abstract

The invention provides paper pulp slag removal equipment for cleaning paper pulp tailings, which is used for recycling and utilizing the paper pulp tailings. The paper pulp slag removal equipment comprises a pressure pump which is used for cleaning the paper pulp tailings, paper pulp low-frequency vibrating screen equipment and a low concentration slag removal device array; the pressure pulp is provided with a good pulp outlet pipeline which is communicated with a paper pulp holding pond of the paper pulp low-frequency vibrating screen equipment; the paper pulp low-frequency vibrating screen equipment is provided with a material storage pond which is communicated with a pulp inlet fluted pipe of the low concentration slag removal device array; when the paper pulp tailings are cleaned by the equipment, the paper pulp tailings form first-stage good pulp through the pressure pump which is used for cleaning the paper pulp tailings; the first-stage good pulp forms second-stage good pulp through the paper pulp low-frequency vibrating screen equipment; the second-stage good pulp is prepared into finished good pulp through the low concentration slag removal device array; the finished good pulp flows to the next process through a pulp discharging fluted pipe of the low concentration slag removal device array. The paper pulp slag removal equipment for cleaning the paper pulp tailings is optimized aiming at the characteristic of high impurity content of the paper pulp tailings, so that high-quality good pulp can be recycled safely and effectively from the paper pulp tailings by the paper pulp slag removal equipment.

Description

technical field [0001] The invention relates to the field of papermaking machinery, in particular to a pulp removal device for cleaning pulp tailings. Background technique [0002] As the paper industry pays more and more attention to environmental protection, the processing equipment for paper pulp tailings has also become an important equipment in the papermaking process. Pressure pumps, pulp low-frequency vibrating screen equipment and low-concentration slag removal equipment are commonly used equipment in the tailings treatment process. , but because the impurities in pulp tailings are much larger than normal pulp raw materials, it is necessary to optimize the treatment equipment to treat the tailings well. [0003] In the treatment process of pulp tailings, the pressure pump is an important screening device, which is often used in the first step of tailing treatment, but because there are many impurities in the tailings, it is easy to block the pressure pump during the ...

AI Technical Summary

Problems solved by technology

[0003]In the treatment process of pulp tailings, the pressure pump is an important screening device, which is often used in the first step of tailings treatment, but due to the There are many impurities, and it is easy to block the impurity trap in the pressure pump during sieving, resulting in abnormal pressure in the pressure pump. If the pressure abnormality cannot be detected in time, it will cause a safety hazard. For the measuring device, due to the complex working conditions inside the pressure pump, the accuracy of pressure measurement cannot be guaranteed. Therefore, how to discover and deal with the abnormal pressure conditions in the pulp pressure pump in time is a research direction

[0004] Low-consistency slag removal equipment is a common equipment in the paper industry. It works based on the principle of eddy current centrifugation. It is usually used to produce high-quality pulp, and it can also be used in the tailings treatment process. The final product is purified, but this type of equipment has high requirements on the stability of the slurry feeding pressure and the feeding flow rate. If the slurry feeding pressure or the feeding flow rate fluctuates during use, it will affect the normal operation of the slag removal equipment, and even occur Blocking. In order to improve the efficiency of slag removal, multiple low-concentration slag removal equipment is often used to process the slurry in the actual process. How to ensure the balance of the slurry feed pressure and feed flow among multiple low-concentration slag removal equipment is a research direction

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