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A Soft Measurement Method of Freeness in High Consistency Refining System

A high-consistency refining and soft-measurement technology, applied in paper testing, material inspection, etc., can solve problems such as low precision, poor timeliness of off-line manual measurement, and inability to directly measure freeness

Active Publication Date: 2016-05-11
NORTHEASTERN UNIV LIAONING
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Problems solved by technology

[0007] In order to overcome the disadvantages of inability to directly measure freeness in the high-consistency refining process, poor timeliness and low precision of off-line manual measurement, the present invention provides a soft measurement method for freeness in the high-consistency refining system, which can realize the measurement of high-consistency Real-time measurement of pulp freeness of pulp machine, improving the efficiency and accuracy of manual measurement, and providing technical support for industrial real-time control and energy saving and consumption reduction

Method used

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  • A Soft Measurement Method of Freeness in High Consistency Refining System

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Embodiment Construction

[0087] like figure 1 As shown, the three-disc refiner of the high-consistency refining system consists of a fixed disc with a double-tooth surface structure in the middle and two fixed discs on both sides to form a double-chamber structure. The three-disc refiner runs stably at high speed, and there will be no problems such as deflection of the moving disk. Without increasing the speed and diameter of the grinding disk, the area of ​​the grinding disk is doubled, which has the advantages of increasing output, improving refining quality, Convenient heat recovery and other advantages.

[0088] The invention provides a soft measurement method for the freeness of a three-disc refiner in a high-consistency refining system. The method can realize the real-time measurement of the pulp freeness of the high-consistency refiner, improve the efficiency and accuracy of manual measurement, and provide technical support for industrial real-time control and energy saving and consumption red...

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Abstract

The invention relates to the technical field of the measurement of the freeness of a high-consistency pulp grinding system in the chemical mechanical pulp preparation production process, and particularly relates to a soft measurement method of the freeness of the high-consistency pulp grinding system, based on a particle swarm algorithm optimization epsilon- support vector regression machine (PSO-epsilon-SVR). The invention provides the soft measurement method of the freeness of the high-consistency pulp grinding system, and the method can be used for measuring the freeness of discharged pulp of a high-consistency pulp grinding machine in real time, improving the efficiency and precision of manual measurement, and providing a technical support for the industrial real-time control and energy conservation as well as consumption reduction. By adopting the method provided by the invention, a hardware platform and measurement software are included, wherein the core of the hardware platform comprises a three-disc pulp grinding machine of the high-consistency pulp grinding system, a pressure sensor, a vibration sensor, an acceleration sensor, a flow rate sensor, a material distributing screw and the like.

Description

technical field [0001] The present invention relates to the technical field of measuring the freeness of high consistency refining system in chemical mechanical pulping production process, in particular to a high consistency refining system based on particle swarm optimization ε-support vector regression (PSO-ε-SVR) Soft measurement method of freeness in pulp system. Background technique [0002] The papermaking process is composed of pulping and papermaking in series. The main function of the pulping link is to produce fibers with specific shapes from plant fiber raw materials, while the function of the papermaking link is mainly to produce various paper products from fibers of specific shapes. The pulp and paper industry is one of the key energy-consuming industries in my country, and consumes a lot of heat, electricity and water in the production process. In particular, the energy consumption of the pulping process and the quality of the pulp produced are directly relat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/34
Inventor 周平赵梓丞王宏代凌旖
Owner NORTHEASTERN UNIV LIAONING
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