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Concentrated alkaline concentration online measurement and control system

A detection and control system, concentrated alkali technology, applied in textiles and papermaking, textile processing machine accessories, textile material processing, etc., can solve problems such as low measurement accuracy, impact on the environment, and inability to continuously measure concentrated alkali concentration in real time, and meet the requirements of Mercerizing requirements, the effect of improving accuracy

Inactive Publication Date: 2012-06-13
TIANJIN POLYTECHNIC UNIV
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Problems solved by technology

The method of manual titration cannot continuously measure the concentration of concentrated alkali in real time, and the parameters cannot be adjusted in time for the change of alkali concentration within the measurement interval, there is time lag and adjustment error, the measurement accuracy is low, and it cannot meet the requirements of continuous production; at the same time, manual titration is used. Adjusting the concentration can not realize the automation of control, increase the number of labor and labor costs, cause many defective products and waste of resources such as water, steam, and pharmaceuticals, increase the cost of sewage treatment, and affect the environment

Method used

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  • Concentrated alkaline concentration online measurement and control system
  • Concentrated alkaline concentration online measurement and control system

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Embodiment Construction

[0015] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0016] A kind of strong alkali concentration on-line detection control system of the present invention as shown in the accompanying drawing, it comprises (a) at least two immersion tanks 1,4, communicate through connecting pipeline between these at least two immersion tanks, in one of them A temperature detection device 2 and a first liquid level detection device 3 are installed in the dipping tank; (b) a filter box 10 on which a second liquid level detection device is installed, and the inlet of the filter box passes through a first manual valve on which The light alkali reclaiming inlet pipeline 9 is communicated with the outlet of 2# dipping tank 1; (c) an alkali distribution tank 17 in which the third liquid level detection device 20 is installed, and the inlet of the alkali distribution tank is equipped with The light alkali recovery out...

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Abstract

The invention discloses a concentrated alkaline concentration online measurement and control system, which comprises at least two dipping tanks, a filter box, an alkaline preparation tank, a measurement tank and a programmable logic controller, wherein a temperature measurement device and a first liquid level measurement device are installed in one dipping tank; a second liquid level measurement device is installed on the filter box, and the inlet of the filter box is communicated with the outlet of the dipping tank No.2; a third liquid level measurement device is installed in the alkaline preparation tank, the inlet of the alkaline preparation tank is communicated with the outlet of the filter box, the inlet of the alkaline preparation tank is respectively communicated with a basic material pipeline on which a concentrated alkaline control and regulating valve is assembled, a water pipeline on which a water control and regulating valve is assembled, and a first branch of a self-circulation pipeline, and a third branch is communicated with the inlet of the dipping tank No.1; and a pressure measurement device, a density measurement device and a fully-immersed sensor are installed in the measurement tank, and the measurement tank is installed in the alkaline preparation tank. The system is adopted to ensure the alkaline concentration of printing and dyeing equipment to be consistent all the time.

Description

technical field [0001] The invention relates to a detection and control system in printing and dyeing equipment, in particular to an online detection and control system of concentrated alkali concentration capable of real-time online detection and adjustment of the concentration of alkali liquid in a dipping tank. Background technique [0002] During the printing and dyeing process, the fabric needs to be immersed in the dipping tank for mercerizing treatment. Therefore, the alkali concentration in the dipping tank is a key process parameter, and it is especially important to keep it constant. The alkali concentration directly affects the fabric appearance quality, dyeing and finishing processes. Existing printing and dyeing equipment often use the alkali solution in the dipping tank to manually titrate the alkali concentration when the fabric is mercerized, and then adjust its concentration according to the process requirements. The method of manual titration cannot continu...

Claims

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Application Information

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IPC IPC(8): D06B23/28
Inventor 蒋秀明袁汝旺杨公源
Owner TIANJIN POLYTECHNIC UNIV
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