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Liquid level control method and system of effusion pit in mineral cotton plate produced by moulding and wet method

A technology of wet forming and control method, which is applied in the direction of liquid level control, control/regulation system, non-electric variable control, etc. It can solve the problems that affect the work of the vacuum system and the consequences are unimaginable, so as to improve the reliability of work and reduce accidents. Incidence, effects of avoiding immersion

Active Publication Date: 2010-01-27
BEIJING NEW BUILDING MATERIALS PLC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] During production, the liquid level control of the discharge pit is very critical. If the liquid level is controlled too low, it will affect the work of the vacuum system; The consequences of motors and other equipment around the flow pit are disastrous

Method used

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  • Liquid level control method and system of effusion pit in mineral cotton plate produced by moulding and wet method
  • Liquid level control method and system of effusion pit in mineral cotton plate produced by moulding and wet method

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Embodiment Construction

[0019] like figure 1 As shown, the liquid level control method of the effusion pit in the wet forming production of mineral wool boards of the present invention comprises the following steps: first, the liquid level detection device 1 for detecting the liquid level height of the effusion pit is to the water in the effusion pit The liquid level is detected in real time and the detected value is input into the controller 2 . The liquid level detection device 1 adopts a drop-in liquid level gauge. Since the concentration of the slurry used to produce the mineral wool sound-absorbing board is not constant, the working condition of the vacuum system is also not constant, which determines the location of the inflow and discharge. The water volume of the pit is constantly changing, and any change in the liquid level at any time can be detected through the input liquid level gauge, so as to notify the controller 2 of the liquid level change in time, so as to adjust the liquid level he...

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Abstract

The invention discloses a liquid level control method of an effusion pit in a mineral wool board produced by wet molding as well as a control system for realizing the control method. The control method comprises the following steps: a. a liquid level detection device detects the liquid level of the effusion pit in real time and inputs the detection value to a controller; b. the controller compares the detection value input by the liquid level detection device with the set value of liquid level pre-input to the controller; and c. the controller outputs control signals to control the operating state of an effusion pump connected with the effusion pit according to comparison results, so as to adjust the liquid level height in the effusion pit. The control system for realizing the liquid level control method comprises: the liquid level detection device, the controller and the effusion pump, the liquid level detection device is connected with the controller, and the controller is connected with the effusion pump.

Description

technical field [0001] The invention relates to a liquid level control method, in particular to a liquid level control method for an effusion pit in a mineral wool board produced by wet forming, and also relates to a control system for realizing the liquid level control method. Background technique [0002] Mineral wool sound-absorbing board is a kind of indoor roof decoration board widely used in office buildings, conference halls, concert halls and other large places. It has dual effects of practicality and decoration. [0003] The production process of the mineral wool sound-absorbing board is as follows. The mixed slurry is naturally dehydrated by the fourdrinier forming machine and dehydrated by the negative pressure of the vacuum system to become a wet board, and then dried by a dryer to make the original board. After embossing, tenoning, spraying and other finishing processes, it is made into a finished product. During the forming dehydration process, the moisture co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05D9/12
Inventor 冯湛清田龙舒焕明刘垒高旭辉
Owner BEIJING NEW BUILDING MATERIALS PLC