A desulfurization device and flue gas dust removal, desulfurization and wastewater treatment method

A desulfurization device and wastewater treatment technology, which is applied in the fields of desulfurization and wastewater treatment, desulfurization devices, and flue gas dust removal, can solve the problems of equipment and boiler space that cannot be upgraded, shut down or demolished and rebuilt, and have too many equipment, so as to reduce equipment investment and Operating costs, reduced energy consumption, and high dust removal efficiency

Active Publication Date: 2022-06-07
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned wet desulfurization technology includes flue gas desulfurization, desulfurization wastewater oxidation treatment or regeneration unit. The process is long, there are many equipments, and the floor area is large, which seriously restricts the construction and upgrading of dust removal and desulfurization devices. Some devices and boilers are due to lack of There is not enough space to upgrade and renovate, resulting in smoke emission indicators that cannot meet the current national standards and forced to stop work or demolish and rebuild

Method used

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  • A desulfurization device and flue gas dust removal, desulfurization and wastewater treatment method
  • A desulfurization device and flue gas dust removal, desulfurization and wastewater treatment method
  • A desulfurization device and flue gas dust removal, desulfurization and wastewater treatment method

Examples

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Embodiment 2

[0089] The flue gas temperature of an enterprise is 150 °C, the pressure is 4kPa, and the flow rate is 250,000 Nm 3 / h, where SO 2 The concentration is 1000 mg / Nm 3 The dust concentration is 280mg / Nm 3 , using the desulfurization apparatus of the present invention, as attached Figures 1 to 2 As shown, the diameter of the pretreatment unit 10 is 3m, the pretreatment unit 10 is provided with a venturi tube 100, the venturi tube 100 of the inlet straight tube section 101 and the outlet straight tube section 105 is round, the diameter is 3 m, the throat section is round, the diameter is 1.5 m, the length of the throat tube is 2 m, the cone angle of the shrinkage section α and the cone angle of the diffusion section are β are 15 °, the venturi tube 100 is provided along the axial direction of a set of nozzles, the vertical spacing of the two nozzles is 3 m, The diameter of the deep treatment unit 11 and the wastewater treatment unit 7 is 7m, and the chimney of the flue gas discharge zo...

Embodiment 3

[0095] The desulfurization apparatus of the present invention, a schematic structural diagram of the pretreatment unit 10 as follows Figures 5 to 6 As shown, the pretreatment unit 10 diameter is 3m, the pretreatment unit 10 is provided with 9 venturi tubes 100, venturi tube 100 inlet straight tube segment 101 and outlet straight tube segment 105 is a square with a side length of 0.7 m, the throat section is round, the diameter is 0.5 m, the length of the throat tube is 1 m, the cone angle of the shrinkage section α and the cone angle β of the diffusion section are 15 °, venturi tube 100 is provided along the axial direction of a set of nozzles, the vertical spacing of the two nozzles is 2 m, the rest of the same as Example 2.

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Abstract

The invention discloses a desulfurization device and flue gas dust removal, desulfurization and waste water treatment methods. The desulfurization device includes a pretreatment unit, an advanced treatment unit and a waste water treatment unit. The pretreatment unit is provided with a Venturi tube, and the Venturi tube includes a constriction section, a throat pipe, a diffusion section and several axially arranged A group of liquid phase nozzles; each group includes two liquid phase nozzles with opposite nozzle directions, which are respectively arranged at the end of the contraction section and the beginning of the diffusion section. The desulfurization device of the present invention integrates the functions of flue gas dust removal, desulfurization and wastewater treatment, greatly reduces the occupied area, significantly reduces the cost required for device construction and transformation and the operating cost of the device, and at the same time reduces the soluble salt content in the exhausted flue gas, The exhaust gas meets the ultra-clean emission standard.

Description

Technical field [0001] The present invention belongs to the field of industrial waste gas purification, relates to a desulfurization device and flue gas dust removal, desulfurization and wastewater treatment methods. Background [0002] Boiler flue gas and factory emissions contain sulfur dioxide and dust, sulfur dioxide and dust are the main components of atmospheric pollutants dust, sulfur dioxide is the main cause of acid rain, small particle size dust is one of the culprits of the formation of smog. [0003] Wet desulfurization has the advantages of high desulfurization rate, reliable operation of the device, simple operation, etc., so the existing flue gas desulfurization technology in various countries in the world is mainly based on wet desulfurization. The traditional wet desulfurization technology mainly includes limestone-gypsum method, double alkali desulfurization, sodium alkali desulfurization, ammonia desulfurization and so on. The above flue gas desulfurization tec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/18B01D53/14B01D50/60B01D47/06B01D47/00C02F1/52C02F1/56C02F1/72C02F9/10
CPCB01D47/00B01D47/06B01D53/1425B01D53/1481B01D53/18B01D53/185C02F1/72C02F1/52C02F1/5281C02F1/5236C02F1/56C02F1/722C02F9/00B01D2258/0283C02F2103/18C02F2209/06B01D2247/04C02F1/048C02F1/16C02F1/66C02F1/001B01D2247/10B01D50/60Y02A50/2351
Inventor 李欣李磊方向晨刘忠生金平韩天竹
Owner CHINA PETROLEUM & CHEM CORP
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