Flue gas desulfurization system and desulfurization method thereof

A desulfurization system and flue gas technology, applied in the flue gas desulfurization system and its desulfurization field, can solve the problems of low desulfurization agent recycling efficiency, complex equipment, and low desulfurization process efficiency

Pending Publication Date: 2022-08-02
巩义市良慧环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there are many devices used in the ammonia desulfurization process on the market, but the recovery and utilization efficiency of the desulfurizer is low, the efficiency of the desulfurization process is low, the equipment is complex, and the operation is cumbersome. Unreliable

Method used

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  • Flue gas desulfurization system and desulfurization method thereof

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Comparison scheme
Effect test

Embodiment 1

[0034] Reference attached figure 1 , the flue gas desulfurization system of the present invention includes a desulfurization and dust removal tower 1, an automatic lime storage charging tower 2, a reactor 3, an oxidation tank 5, a catalyst preparation tank 7, a catalyst storage and delivery tank 6, an integrated equipment box 4 and a filter press 8; the air inlet at the bottom of the desulfurization and dust removal tower 1 is communicated with the fan (the flue gas is passed into the desulfurization tower from the air inlet at the lower part of the desulfurization tower through the fan), and the drainage hole at the bottom of the desulfurization and dust removal tower 1 is communicated with the water inlet of the reactor 3, and the reactor 3 The top feeding port is communicated with the lime storage automatic feeding tower 2, the water outlet of the reactor 3 is communicated with the water inlet of the integrated equipment box 4, and the water outlet of the integrated equipmen...

Embodiment 2

[0037] Reference attached figure 1 , the flue gas desulfurization system of the present invention includes a desulfurization and dust removal tower 1, an automatic lime storage charging tower 2, a reactor 3, an oxidation tank 5, a catalyst preparation tank 7, a catalyst storage and delivery tank 6, an integrated equipment box 4 and a filter press 8; the air inlet at the bottom of the desulfurization and dust removal tower 1 is communicated with the fan (the flue gas is passed into the desulfurization tower from the air inlet at the lower part of the desulfurization tower through the fan), and the drainage hole at the bottom of the desulfurization and dust removal tower 1 is communicated with the water inlet of the reactor 3, and the reactor 3 The top feeding port is communicated with the lime storage automatic feeding tower 2, the water outlet of the reactor 3 is communicated with the water inlet of the integrated equipment box 4, and the water outlet of the integrated equipmen...

Embodiment 3

[0040] Reference attached figure 1 , the flue gas desulfurization system of the present invention includes a desulfurization and dust removal tower 1, an automatic lime storage charging tower 2, a reactor 3, an oxidation tank 5, a catalyst preparation tank 7, a catalyst storage and delivery tank 6, an integrated equipment box 4 and a filter press 8; the air inlet at the bottom of the desulfurization and dust removal tower 1 is communicated with the fan (the flue gas is passed into the desulfurization tower from the air inlet at the lower part of the desulfurization tower through the fan), and the drainage hole at the bottom of the desulfurization and dust removal tower 1 is communicated with the water inlet of the reactor 3, and the reactor 3 The top feeding port is communicated with the lime storage automatic feeding tower 2, the water outlet of the reactor 3 is communicated with the water inlet of the integrated equipment box 4, and the water outlet of the integrated equipmen...

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Abstract

The invention discloses a flue gas desulfurization system and a desulfurization method thereof. The desulfurization system comprises a desulfurization and dust removal tower, a lime storage and automatic feeding tower, a reactor, an oxidation pond, a catalyst preparation tank, a catalyst storage and feeding tank, an integrated equipment box body and a filter press, all the devices are communicated according to the requirement of circulating desulfurization. Sulfur-containing flue gas is introduced into the desulfurization and dust removal tower and is subjected to a desulfurization and dust removal reaction with the introduced desulfurization and dust removal circulating liquid; the generated mixed liquid is discharged from the bottom of the tower and enters a reactor to react with the added calcium hydroxide; introducing the generated solution containing the precipitate into an integrated equipment box body for standing, introducing the precipitate generated after standing into an oxidation pond for oxidation reaction, and discharging the solution and introducing the solution into a desulfurization and dust removal tower for recycling; precipitation generated after the oxidation reaction is subjected to filter pressing and dehydration, the obtained product is used as a raw material, and filter pressing water returns to the box body of the integrated equipment for cyclic utilization. Flue gas desulfurization is carried out through the flue gas desulfurization device, the flue gas purification effect is remarkable, energy conservation and emission reduction are combined, and the purposes of pollution reduction and low carbon are achieved.

Description

1. Technical field: [0001] The invention belongs to the technical field of industrial waste gas emission recovery and treatment, and in particular relates to a flue gas desulfurization system and a desulfurization method thereof. 2. Background technology: [0002] At present, thermal power plants, iron and steel, non-ferrous metals, coke, sulfuric acid and other industries all need to install desulfurization equipment to treat sulfur dioxide emitted during production. The existing treatment methods mainly include: 1. Limestone is used as the desulfurizing agent, the desulfurization product is gypsum, and the by-product is carbon dioxide. 2. Alkali method: using caustic soda as the absorbent, the desulfurization product is sodium sulfate and the by-product carbon dioxide. 3. Double alkali method: caustic soda and limestone are used as raw materials, the final product is gypsum, and the by-product is carbon dioxide. 4. Magnesium method: Using magnesium oxide as raw material,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/78B01D53/86B01D53/60B01D53/50B01D53/62B01D53/96B01D47/16B01D53/73C04B18/06C04B22/14
CPCB01D53/78B01D53/8637B01D53/60B01D53/502B01D53/62B01D53/96B01D47/16B01D53/73C04B18/064C04B22/145B01D2251/304B01D2251/604B01D2255/2027B01D2255/70B01D2257/504B01D2258/0283Y02A50/20
Inventor 李学良
Owner 巩义市良慧环保科技有限公司
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