| 摘要 |
<p>The invention relates to a method for monitoring filtering installations (1) which are used to filter dust-loaded gases. The dust content of the gas is measured and the temporal course of the measuring signal is evaluated. According to the invention, a warning signal is triggered when either a pre-determined emission limit value is exceeded or when a sudden change takes place in the dust content of the clean gas. In order to carry out the inventive monitoring method, a scattered light particle detector (8) is applied in the flow of clean gas (3). The measuring signal of said detector is processed by means of an adapted evaluation unit (9) which comprises control lamps (10, 11, 12) indicating the operating state of the filtering installation (1).</p> |
