Novel desulfurization system slurry density measuring device

Abstract

The present invention provides a novel desulfurization system slurry density measurement device, which comprises a cabinet, an electric control unit and a measurement unit, the electric control unit and the measurement unit are arranged in the cabinet, the measurement unit comprises two sets of redundant measurement assemblies and a connection pipe fitting for connecting the measurement assemblies, and the two sets of measurement assemblies comprise a measurement assembly A and a measurement assembly B with the same structure; and the measuring assembly comprises a measuring cylinder and an electromagnetic valve arranged on a pipeline at the outer end of the measuring cylinder, and the measuring cylinder is provided with an overflow port, a pH meter connector, a measuring hole, a slurry leading-in hole and a drainage pipe hole. The measuring device is high in measuring precision, has an automatic cleaning function, is good in stability, small in maintenance amount, economical and practical, and is suitable for all slurry density measuring application occasions.

Description

technical field [0001] The invention relates to the technical field of environmental protection desulfurization, in particular to a novel desulfurization system slurry density measuring device. Background technique [0002] In desulfurization systems such as magnesium method, sodium method, and calcium method, the measurement of slurry density directly affects the control of desulfurization efficiency and desulfurization agent consumption, so it is a key measurement link. The current common measurement techniques can be classified into three categories. [0003] The first type is a radioactive density meter. The measurement principle is: by detecting the nuclear radiation density dose passing through the slurry, it is converted into the slurry density. The approval procedures for the installation and application of such radioactive instruments are cumbersome, and there is a certain radiation hazard to the operator. At present, they have faded out of the mainstream market, a...

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Problems solved by technology

For example, the calcium method limestone slurry density and the absorption tower slurry density have been measured using this measurement method. The problem is that this measurement method will be affected by the liquid sloshing inside the tank, such as: agitator, oxidizing wind blowing etc. will affect the height of the slurry liquid level, resulting in fluctuations in pressure difference, resulting in low measurement accuracy and stability; Disadvantages in the first case

However, the defect of the common sampling measurement method is that in order to ensure that the characteristics of the extracted slurry and the measured source slurry are consistent, it is necessary to continuously extract and measure fresh slurry. Take the sample measuring equipment for measurement, complete a measurement at time T2, and upload the measurement data, and then, before the next measurement, the slurry must be emptied, the measurement pipeline must be flushed, and new slurry must be introduced for re-measurement. This series of actions It takes time t, and in this time period t, the real-time measurement has stopped, and in order to ensure the uninterrupted control of the desulfurization system, at T2+t time, the control system can only maintain and use the last measured value at T2 time, so , ordinary sampling and drainage measurement devices have measurement hysteresis and are not real-time monitoring

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