Measuring system for acetylene sludge slurry parameters for desulfuration

Abstract

The invention discloses a measuring system for acetylene sludge slurry parameters for desulfuration. The measuring system comprises a measuring barrel, wherein the measuring barrel comprises a cushion section and a measuring section, the cushion section is positioned below the measuring section, the cushion section is formed by encircling an inverted cone shell, the measuring section is formed by encircling a columnar shell, the inner diameter of the measuring section is appropriately equal to the large-diameter end of the cushion section, and a density gauge and a pH gauge are mounted on the measuring section; the small-diameter end of the cushion section is communicated with a slurry storage tank of a desulfuration tower through a pipeline, the top of the measuring section is communicated with one end of a measuring pipeline, and the other end of the measuring pipeline extends into a pit; the inner diameter of the large-diameter end of the cushion section is three to five times of the inner diameter of the small-diameter end of the cushion section; the height of the top of the measuring barrel is lower than the liquid level inside the slurry storage tank of the desulfuration tower. A measuring pump is cancelled, the measuring system can measure flow rate reduction of slurry by means of flowing of acetylene sludge slurry, so that the erosive wear for a lining of the density gauge and a probe of the pH gauge is reduced, and the cost for changing the density gauge and the pH gauge regularly every year is reduced.

Description

technical field [0001] The invention belongs to the technical field of environmental protection desulfurization, and in particular relates to a measurement system for parameters of calcium carbide slag slurry used for desulfurization. Background technique [0002] Carbide slag replaces limestone for desulfurization, and carbide slag contains a large amount of Ca(OH) 2 , the purity is generally 65% ​​to 90%, and it is a medium-strength alkali. 2 Has good absorption. Using calcium carbide slag as a desulfurizer, the desulfurization efficiency can reach 95% to 98%, and calcium carbide slag is used to absorb SO in boiler flue gas 2 The by-product gypsum can also be produced, which not only improves the efficiency of flue gas desulfurization, but also finds a reliable way out for carbide slag treatment. However, in conventional desulfurization process design, it is necessary to design a measurement system when measuring the parameters pH and density of calcium carbide slag slu...

AI Technical Summary

Problems solved by technology

However, when this measurement system is used to measure the parameters of calcium carbide slurry, due to the need for real-time measurement of parameters such as the pH value and density of the slurry, the measurement pump 4 needs to run simultaneously with the desulfurization equipment and cannot be stopped, so two installations are required. One measuring pump, one for use and one for standby, not only increases the investment cost, but also consumes a lot of electric energy when the measuring pump 4 is running continuously. If the power of each measuring pump is 7.5KW, the power consumed by one measuring pump is 65700 Spend

In addition, when the measuring pump 4 is used to continuously pump the calcium carbide slurry, the flow rate of the calcium carbide slurry is relatively high, and there are a large number of solid particles in the calcium carbide slurry, which will cause damage to the density meter lining and pH meter probe installed on the measuring pipeline. Large scouring wear, resulting in less than one year service life of the density meter lining and pH meter probe, resulting in high maintenance costs for the entire measurement system

[0003] To sum up, the measurement system of calcium carbide slurry parameters for desulfurization in the prior art requires large investment, high maintenance costs, waste of energy, etc., and there is still no effective solution

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