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Online measurement device for rock-wool melt volume flow and fiber forming device with the same and measurement method

A technology of volume flow and measuring device, which is applied in the direction of measuring device, liquid/fluid solid measurement, measuring flow/mass flow, etc., can solve the problems such as the inability to realize the main line speed of rock wool production and the inability to accurately measure the melt flow online, and achieve Avoid safety issues, achieve speed and effectiveness

Active Publication Date: 2017-10-20
NANJING FIBERGLASS RES & DESIGN INST CO LTD
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Problems solved by technology

[0004] In order to solve the defects in the prior art that the melt flow in the rock wool production process cannot be accurately measured online, and the main line speed of rock wool production and the real-time control of product bulk density cannot be realized, the present invention provides an online measuring device for rock wool melt volume flow , including its fiber forming device and measuring method

Method used

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  • Online measurement device for rock-wool melt volume flow and fiber forming device with the same and measurement method

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Experimental program
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Effect test

Embodiment 1

[0033] An on-line measurement device for rock wool melt volume flow, comprising an air jet disturbance device and a machine vision detection device sequentially arranged from top to bottom; the air jet disturbance device is provided with a gas inlet and an air flow nozzle; the machine vision detection device includes interconnected CCD Image capture device (DFK 33UX174USB 3.0 color industrial camera) and image processing device (DFG / SV1 / PCIe PCI-E image acquisition card and IC Measure software).

[0034] The air jet disturbance device is provided with a pneumatic triple piece, which is arranged between the gas inlet and the air flow nozzle; the air jet disturbance device is also provided with a solenoid valve for controlling the opening and closing of the air flow nozzle.

[0035] In the method for measuring the volume flow rate of the rock wool melt by using the above-mentioned on-line measuring device for the volume flow rate of the rock wool melt, the air flow direction of t...

Embodiment 2

[0042] It is basically the same as Embodiment 1, except that the solenoid valve on the jet disturbance device is interlocked with the CCD image capture device, and when the disturbance solenoid valve is opened, the image capture device starts to store the photographs for measurement. This allows the disturbance system to be synchronized with the machine vision inspection system. The total length of the melt stream is 600mm (that is, the distance from No. 1 active chute to No. 2 active chute). When the solenoid valve is opened, set the CCD image capture device to capture images within 3 seconds after the solenoid valve is opened.

[0043] The air flow nozzle is interlocked with the CCD image capture device. When the solenoid valve is opened, the air flow nozzle starts to blow compressed air to the melt to cause disturbance in the flow stream. At the same time, the CCD image capture device starts to capture the disturbance of the flow stream, and takes continuous images within 3 ...

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Abstract

The invention discloses an online measurement device for the rock-wool melt volume flow and a fiber forming device with the same and a measurement method. The online measurement device for the rock-wool melt volume flow comprises an air-injection disturbance device and a machine vision detection device which are sequentially arranged from top to bottom; a gas inlet and an airflow nozzle are arranged on the air-injection disturbance device; the machine vision detection device comprises a CCD image taking device and an image processing device which are mutually connected. According to the online measurement device for the rock-wool melt volume flow and the fiber forming device with the same and the measurement method, compressed air flows to mineral-wool melt flow streams through the air-injection disturbance device, the flow streams generate disturbance accordingly, then flow-stream disturbance images obtained in real time are converted into digital signals through the machine vision detection device, then the signals are processed and analyzed to obtain the diameter and the flow speed of a melt, and the volume flow of the melt is thus obtained. By means of the system, real-time control of the rock-wool production line speed and the volume weight of a product can be achieved.

Description

technical field [0001] The invention relates to an online measuring device for rock wool melt volume flow, a fiber forming device comprising the same and a measuring method, belonging to the field of rock wool melt volume flow measurement. Background technique [0002] During the production process of rock wool and cotton, the fluctuation of melt volume flow directly affects the quality of the final product. Because the temperature of the melt is very high, it is unrealistic to measure the volume flow of the melt by the traditional method. At present, there is no very reliable measurement method to determine the instantaneous volume flow of the melt. [0003] Methods have been used with limited success by researchers to monitor centrifuge motors to measure flow, to measure flow using radioisotopes, and to measure raw cotton and product weight online. The method of monitoring the centrifuge motor is greatly affected by the vibration of the centrifuge roller head and the impa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F1/00C03B37/022
CPCG01F1/00C03B37/022Y02P40/57
Inventor 刘春唐宇王涛蒋伟忠
Owner NANJING FIBERGLASS RES & DESIGN INST CO LTD
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