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System and method for on-line monitoring and modulating slurry pH

A ph meter and controller technology, which is applied in the process of adding pulp raw materials, fiber raw material processing, synthetic cellulose/non-cellulose material pulp/paper, etc., can solve the problems of difficult pH measurement and control, and achieve the elimination of hazards and reduction of Operational deviation, effects of contact avoidance

Active Publication Date: 2015-02-25
许立江
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Problems solved by technology

[0007] The purpose of the present invention is to solve the phenomenon that pH is difficult to measure and control in the existing beating process, and to provide a system and method for on-line monitoring and regulating slurry pH, so as to realize automatic online adjustment and control of pH

Method used

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  • System and method for on-line monitoring and modulating slurry pH

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specific Embodiment

[0028] In this embodiment, a system for online monitoring and adjusting slurry pH includes a beating device, a white water adding device 20 , an automatic sulfuric acid adding device 30 , an automatic pure water adding device 40 , a pH meter 11 , and a central controller 90 . The controller is connected with pH meter 11, speed changer 80, sulfuric acid automatic adding device 30 and pure water automatic adding device. Wherein the beating device is made up of engine 70, speed changer 80, rotating shaft, blade, casing and inner layer filter screen 10. Flow meter 60 and electromagnetic valve 50 are all equipped with on the pipeline of sulfuric acid automatic adding device and pure water automatic adding device. The filter screen is close to the box body, and can only allow the entry and exit of the solution but not the glass fiber. The probe 12 of the pH meter 11 is located between the box body and the inner layer filter screen, and adopts a design similar to a buoy.

[0029] Du...

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Abstract

The invention discloses a system and method for on-line monitoring and modulating the slurry pH. The system comprises a beating device, a white water adding device, an automatic sulfuric acid adding device, an automatic pure water adding device, a pH meter, and a central controller. Through the mutual controlling and adjusting among the members mentioned above, the high efficient and precise on-line automatic monitoring and modulating on solution pH can be achieved, and thus the maintenance cost increasing due to the operation deviation is reduced. At the same time, the effluent range of sulfuric acid during the actual production process is narrowed down, the direct contact between an operator and sulfuric acid is avoided, and the potential danger is radically eliminated.

Description

technical field [0001] The invention relates to a pH control system and method in the field of beating, in particular to a system and method for on-line monitoring and regulating slurry pH in the field of glass wool beating. Background technique [0002] Vacuum insulation panels are a kind of high-efficiency thermal insulation materials. Glass wool core material is an important part of vacuum insulation panels. The beating process is an important stage in the production of vacuum insulation panel core materials. The dispersion of glass fibers in the slurry, the length and diameter of glass fibers will affect the core material. performance. In order to increase the bonding performance of the glass fiber and the strength of the core material and increase the dispersion of the glass fiber in the slurry during beating, it is usually necessary to ensure that the beating process has a suitable acidic environment. [0003] During the actual beating process, the pH of the circulat...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H23/08D21H23/78D21H13/40
Inventor 陈照峰周介明
Owner 许立江
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