High pressure steam two-stage efficient comprehensive utilization energy-saving processing equipment

Abstract

The invention relates to high pressure steam two-stage efficient comprehensive utilization energy-saving processing equipment, which comprises a boiler, a primary energy utilization device and a secondary energy utilization device, wherein the primary energy utilization device is communicated with the boiler, converts high pressure steam from the boiler into low pressure steam, and is also communicated with an ammonium phosphate evaporator at the same time; the ammonium phosphate evaporator is communicated with an air exhausting device I; the secondary energy utilization device is respectively communicated with the primary energy utilization device and an air exhausting device II; the secondary energy utilization device utilizes the low pressure steam from the primary energy utilization device to evaporate ammoniated slurry or convert the energy thereof into electric energy and mechanical energy. According to the high pressure steam two-stage efficient comprehensive utilization energy-saving processing equipment provided by the invention, the waste heat produced by the boiler is fully utilized, so that the waste of the energy is reduced, the electric energy is saved, the emission is reduced, and the production cost is reduced.

Description

technical field [0001] The invention relates to an energy-saving process equipment for two-stage high-efficiency comprehensive utilization of high-pressure steam. Background technique [0002] In chemical production, whether it is a waste heat boiler or a supporting boiler, a large amount of high-pressure steam is generally produced. These high-pressure steam can be used as a heat source for heating or as a power source for driving equipment. [0003] The monoammonium phosphate production workshop is divided into a sulfuric acid workshop and an ammonium phosphate workshop. During normal production, the waste heat boiler in the sulfuric acid workshop will generate a large amount of high-pressure steam, which is transported to the concentration section of the ammonium phosphate workshop through pipelines to heat the ammonium phosphate slurry. After passing through the concentration section, part of the high-pressure steam is condensed into water, and the uncondensed steam is d...

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Problems solved by technology

[0004] At present, in the production of monoammonium phosphate, part of the energy of high-pressure steam is absorbed by the slurry, and most of the steam containing a large amount of energy is discharged. If this part of energy cannot be fully utilized, it will cause energy loss, which is not conducive to energy saving and emission reduction, resulting in waste

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