Improving the Process of Ammophos Production in the Conditions of Vibrogranu¬lation

Abstract

The market of mineral fertilizers is developing rapidly, which contributed to the growth of agricultural production in general and the growth of demand in the world market in particular. As a result, the supply of mineral fertilizers on the market, which is formed due to its own production and import of products, grew.
 Chemical companies, taking into account the current situation, have shifted from the insolvent domestic market to the world market, as a result of which this segment has provided, along with the metallurgical industry, a significant share of foreign exchange earnings over the past decade. Mineral fertilizers are an important source of nutrient return to the soil and the basis for modern modern technologies and profitable agribusiness.
 In recent years, Ukraine has seen an increase in the use of basic types of mineral fertilizers, as well as an increase in the application of complex fertilizers. Demand for fertilizers in Ukraine is formed by farms of various organizational and legal forms and sizes of land use, including large agricultural holdings, where considerable attention is paid to the intensification of agricultural production. 
 In the usual technological mode, the neutralization of phosphoric acid in the apparatus of the high-speed evaporator-evaporator (SAV) is carried out with liquid ammonia. Liquid ammonia in the SAV apparatus first evaporates, and then gaseous ammonia reacts with phosphoric acid. The neutralization process results in a low-concentration ammophos pulp.
 It is established in the work that during the research of ammophos production in the conditions of vibrogranulation the technological process is improved due to the installation of more optimal nozzles of the BGS apparatus.
 The characteristics of raw materials, finished product and auxiliary materials are analyzed; physico-chemical bases of the process. Selected technical characteristics of the main and auxiliary equipment. According to the results of the research, it is proposed to install a transport nozzle, to improve the optimal conditions of the technological process, structural elements of the main devices.