Reaction device for preparing sodium silicate by utilizing high-efficiency and energy-saving liquid phase method

Abstract

The invention discloses a reaction device for preparing sodium silicate by utilizing a high-efficiency and energy-saving liquid phase method. The reaction device comprises a material discharge pipe (3) of which one end is communicated with at least two of reaction kettles, and a steam pipe (4) communicated and connected with at least two of the reaction kettles, wherein a material discharge control valve (5) is arranged on the material discharge pipe, an air inlet control valve (6) is arranged on the steam pipe, a pressure-reduced emptying pipe (8) is arranged between the reaction kettles and the steam pipe, a pressure-reduced emptying control valve (7) is arranged on the pressure-reduced emptying pipe, one end of the pressure-reduced emptying pipe is communicated and connected with the reaction kettles, the other end of the pressure-reduced emptying pipe is communicated and connected with the steam pipe, and the material discharge pipe is connected with an air compressor bag (13) by an air compressor valve (14). According to the reaction device, the temperature and pressure of the reaction kettles can be quickly reduced, the heating time of the reaction kettles can be shortened, the time of the reaction kettles can be shortened by 3 hours, the daily output can be improved by 80tons, and the standard coal energy consumption can be reduced by 14.5kg / t. The material in the reaction kettles can be wholly discharged by the compressed air rather than the steam, so that the energy sources can be saved, and the equipment utilization rate and the production efficiency can be improved.

Description

technical field [0001] The invention belongs to the improvement of an inorganic silicon compound liquid-phase reaction device, in particular to a reaction device for preparing sodium silicate with an energy-saving and high-efficiency liquid-phase method. Background technique [0002] The production methods of sodium silicate include dry method and wet method, and the wet method is also called liquid phase method. Because the energy consumption of sodium silicate produced by the liquid phase method is low, only one-third of that of the dry method, and there is no environmental pollution, due to the invention of the high modulus sodium silicate produced by the liquid phase method, the production of silicic acid by the liquid phase method Sodium is commonly used. At present, the energy consumption of sodium silicate standard coal produced by liquid phase method in my country is 29.5kg / t, while the energy consumption of sodium silicate produced by liquid phase method in foreign...

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Problems solved by technology

[0003] Aiming at the problems of high coal consumption and low production efficiency in the production of sodium silicate by the liquid-phase method in the above-mentioned prior art, the present invention provides a liquid-phase method for producing silicon silicate that is not only safe, reliable, pollution-free, low in energy consumption, but also highly efficient. Sodium acid reaction device

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