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首页> 外国专利> A DEVICE FOR PRODUCING AMMONIUM NITRATE SOLUTION AND A PROCESS FOR PRODUCING AMMONIUM NITRATE SOLUTION

A DEVICE FOR PRODUCING AMMONIUM NITRATE SOLUTION AND A PROCESS FOR PRODUCING AMMONIUM NITRATE SOLUTION

机译：一种生产硝酸铵溶液的设备和一种生产硝酸铵溶液的方法

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The invention concerns the field of producing mineral fertilizers. A device for producing solution of ammonium nitrate contains a cylindrical body with bottom and fittings for withdrawing solution, measuring level and pressure, a cover with nipple for withdrawing liquor-tanned vapor. Inside the body at certain distance of the bottom a neutralization unit is mounted, and which unit contains two cups disposed concentrically, which are connected between them by two rows of openings, in the internal cup below near the bottom of external cup and above near connecting flange of the internal cup. Above, in the internal cup there is disposed tubular reactor made in the form of ejector with nipples for supplying nitric acid and gaseous ammonium. The body of reactor has orifices for inlet of solution into the mixing chamber of reactor. Separate funnel is disposed without gap to the lower flange connection of reactor and fixed in the internal cup. The unit for evaporation of solution contains two blind discs with overflow boards installed one above another between the body of mechanism and external cup so that the overflow board of the upper disc is disposed near the mechanism body and at the level of axes of upper orifices in the internal cup, and overflow board of lower dish is disposed near the external cup. A process for producing ammonium nitrate solution is performed in the above mentioned mechanism. The process involves neutralization of nitric acid with gaseous ammonium at the pressure of 0.3-0.4 MPa and temperature of 130-140 DEGREE C in the flow with ammonium nitrate solution by inner forced circulation of the mentioned solution, evaporation of solution due to neutralization heat, at that evaporation of solution is conducted in parallel to neutralization. The invention provides reducing steel intensity, simplification of circuit in hardware implementation and increasing the safety in operation.
机译：本发明涉及生产矿物肥料的领域。一种用于生产硝酸铵溶液的设备，包括一个带底部的圆柱体，一个用于抽出溶液，测量液位和压力的配件，一个带有奶嘴的盖子，用于抽出鞣制的水蒸气。在主体内部，在底部一定距离处安装了一个中和单元，该单元包含两个同心放置的杯子，它们通过两排开口在两个杯子之间相互连接，位于内部杯子中，靠近外部杯子底部，靠近内部杯子内部杯的法兰。在内杯的上方，布置有以喷射器形式制成的管状反应器，该喷射器具有用于供给硝酸和气态铵的喷嘴。反应器的主体具有用于将溶液引入反应器的混合室中的孔口。单独的漏斗与反应器的下部法兰连接无间隙地布置，并固定在内部杯中。溶液的蒸发单元包括两个盲板，两个盲板的溢流板一个接一个地安装在机构主体和外杯之间，从而使上盘的溢流板位于机构主体附近并且位于上孔轴向。内杯，下杯的溢流板设置在外杯附近。以上述机理进行硝酸铵溶液的制造方法。该方法包括在上述溶液的内部强制循环下，在硝酸铵溶液中以0.3-0.4 MPa的压力和130-140°C的温度用气态铵中和硝酸，通过溶液的内部强制循环，将溶液蒸发，此时溶液的蒸发与中和平行进行。本发明降低了钢的强度，简化了硬件实现中的电路，提高了操作的安全性。

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