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Combined desulfurization and denitrification apparatus

A desulfurization, denitrification and denitrification technology, which is applied in the fields of combustion product treatment, combustion method, lighting and heating equipment, etc., can solve the problems of large floor area, high concentration of nitrogen oxide and sulfur dioxide emissions, and complex investment in equipment, so as to ensure Thorough effect of denitrification

Pending Publication Date: 2019-11-19
苏州仕净科技股份有限公司
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  • Claims
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AI Technical Summary

Problems solved by technology

[0003] Traditional desulfurization and denitrification devices occupy a large area, complex equipment and large investment, which cannot meet the needs of energy saving. At the same time, there are problems of incomplete desulfurization and denitrification, that is, the contact time between nitrogen oxides and sulfur dioxide and desulfurization and denitrification reactants is short and the reaction is incomplete. Lead to low desulfurization and denitrification efficiency, high concentration of nitrogen oxides and sulfur dioxide emissions

Method used

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  • Combined desulfurization and denitrification apparatus
  • Combined desulfurization and denitrification apparatus
  • Combined desulfurization and denitrification apparatus

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Embodiment Construction

[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0025] Such as figure 1 — Figure 4 As shown, the present invention provides a combined desulfurization and denitrification device, comprising:

[0026] A combustion boiler 10, the flue gas produced after coal combustion is discharged from the combustion boiler 10;

[0027] A flue gas cooling unit 11, which is connected to the combustion boiler 10 through a first pipeline (not shown in the figure) to cool the exhausted flue gas;

[0028] An ammonia gas supply source 13, which stores high-pressure ammonia gas inside;

[0029] A denitrification unit 14, which is respectively connected to the flue gas cooling unit 11 and the ammonia gas supply source 13 through a three-way pipeline 12, and the cooled flue gas and ammonia gas are initially mixed in the three-way pipeline 12 a...

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Abstract

The invention discloses a combined desulfurization and denitrification apparatus, which can achieve a complete desulfurization and denitrification reaction. According to the apparatus, flue gas sequentially enters a flue gas cooling unit, a denitrification unit, a dust removal unit and a desulfurization unit, wherein the cooled flue gas obtained in the flue gas cooling unit can be well subjected to a mixed reaction with ammonia gas, such that the ammonia gas cannot be fully dissolved in sprayed clear water due to high temperature in a denitrification shell; by arranging a separation plate, theflue gas is subjected to secondary denitrification so as to ensure complete denitrification; and during the desulfurization, the flue gas passes through a multi-layer desulfurization agent placing frame from a gas inlet pipe, and is discharged to a discharge chimney from a gas discharge pipe, such that sulfides can be completely absorbed in the process.

Description

technical field [0001] The invention relates to the technical field of waste gas desulfurization and denitrification equipment, in particular to a combined desulfurization and denitrification device. Background technique [0002] Coal, as the main primary energy in my country, accounts for about 64% of the primary energy consumption. Many pollutants are produced during the coal combustion process, mainly including sulfur dioxide and nitrogen oxides. With the rapid development of the economy, the coal-based energy structure has greatly increased the emission of coal-fired flue gas in my country, and sulfur dioxide and nitrogen oxides have become more and more serious, and have produced a series of problems. The acid rain, sulfate aerosols, and photochemical smog produced will seriously threaten human health, endanger plant growth, corrode metals, and damage the ecological environment. These pollutants have seriously affected the lives of the people and the development of the n...

Claims

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Application Information

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IPC IPC(8): B01D53/82B01D53/76B01D53/56B01D53/50F23L15/00F23J15/06F23J15/02
CPCB01D53/76B01D53/82F23J15/02F23J15/06F23L15/00F23J15/022B01D53/56B01D53/50F23J2215/10F23J2215/101F23J2215/20Y02E20/34
Inventor 董仕宏吴倩倩张世忠
Owner 苏州仕净科技股份有限公司
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