Ammonia process desulfurization device capable of saving energy by more than 50%

Abstract

The invention discloses an ammonia process desulfurization device capable of saving energy by more than 50%. One part of liquid conveyed out of a low circulating pump is conveyed to a cooling and dry powder discharging integrated pipe, is instantaneously evaporated into dried ammonium sulfate with hot flue gas and can be directly used for farmland fertilizers, so that lots of heat energy of a subsequent drying system is saved, the flue gas can be cooled, and a temperature-resistant range of an anticorrosive layer of a desulfurizing tower is reached; oxidation air upwards penetrates through small pores of a porous flanged gas-liquid plate, and liquid flows back and forth transversely and is repeatedly in contact with the oxidation air, so that the oxidation efficiency is improved; the liquid and air flows through respective channels without conflicting with each other, so that the operation is smooth, and the operating flexibility is greatly improved; due to an energy recovery pipe, high potential energy can be totally utilized, and the impact failure effect on equipment is relieved; the problem that the existing equipment is high in investment, high in power consumption, poor in absorption liquid oxidation effect and difficult to control is wholly solved, the capital of the desulfurizing tower can be theoretically saved by 33% or higher, and the energy and capital of a primary circulating pump of the maximum power consumption equipment can be saved by more than 50%.

Description

[0001] Technical field [0002] The invention belongs to the technical field of environmental protection desulfurization, relates to a device with more than double the energy saving of ammonia desulfurization, and is especially suitable for the energy-saving transformation of new ammonia desulfurization devices in thermal power plants or existing ammonia desulfurization devices. Background technique [0003] The sulfur dioxide produced by coal burning causes environmental pollution, but desulfurization requires a large investment and power consumption, so that many companies lose money because of desulfurization. Of course, the enthusiasm of enterprises for desulfurization is not high, and unreasonable desulfurization processes are in operation. Frequent accidents have caused some enterprises to be half-open and half-stopped. Every time they start or stop, energy consumption will be wasted and environmental pollution will be caused. Maintenance and replacement of equipment incl...

AI Technical Summary

Problems solved by technology

[0011] In order to overcome the deficiencies of the existing technology, the problem of large investment in the oxidation system, poor effect and difficult control, solve the negative effects of high-level liquid, and solve the problem of high-temperature flue gas damage to the desulfurization tower anti-corrosion layer, as well as the large resistance caused by the gas cap and the For the problem of high investment, this invention provides a device that saves more than double the energy of ammonia desulfurization. Its purpose is to turn these negative effects into benefits, and greatly reduce power consumption and cost

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