Urea hydrolysis ammonia production equipment

Abstract

The invention relates to the technical field of chemical material preparation, and especially relates to urea hydrolysis ammonia production equipment. The equipment comprises a raw material dissolvingtank, a raw material storage tank, a reactor, a drain tank and a temperature and pressure reducer, the raw material storage tank is communicated with the raw material dissolving tank through a firstpipeline, and a raw material dissolving pump and a first automatic valve are arranged on the first pipeline; the reactor is communicated with the raw material storage tank through a urea pipeline; a raw material conveying pump and a second automatic valve are arranged on the urea pipeline; the bottom of the reactor is also communicated with a raw material dissolving tank through a liquid-phase pipeline; and a third automatic valve is arranged on the liquid-phase pipeline. When the reactor needs to be overhauled, the third automatic valve is opened, so that a catalyst and urea solution in the reactor automatically flow into the raw material dissolving tank, the catalyst and urea solution in the reactor is stored, and after the reactor is overhauled, the catalyst and urea solution stored inthe raw material dissolving tank can flow back into the reactor again, and the effect of saving the catalyst and urea solution is achieved.

Description

technical field [0001] The invention relates to the technical field of chemical material preparation, in particular to a urea hydrolysis ammonia production equipment. Background technique [0002] The urea hydrolysis reactor is the core equipment of the flue gas denitrification liquid ammonia to urea project in thermal power plants, and its performance determines the control quality, energy consumption and operation reliability of the denitrification system after the transformation. At present, the flue gas denitrification and hydrolysis ammonia production technologies in commercial application mainly include urea ordinary hydrolysis and urea catalytic hydrolysis ammonia production technology. The common hydrolysis technology has slow reaction speed, long response time, large volume (original buffer tank) and serious corrosion. deficiencies and flaws. The existing catalytic hydrolysis of urea is based on common hydrolysis technology, adding a catalyst, which can greatly inc...

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Problems solved by technology

[0005] Therefore, the technical problem to be solved in the present invention is to overcome the defects of waste of urea solution and catalyst solution when the reactor is overhauled by the urea hydrolysis ammonia production equipment in the prior art, thereby providing a kind of urea that can avoid wasting urea solution and catalyst solution Hydrolysis ammonia production equipment

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