CN217287864U - Flue gas desulfurization equipment - Google Patents
Flue gas desulfurization equipment Download PDFInfo
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- CN217287864U CN217287864U CN202220661994.1U CN202220661994U CN217287864U CN 217287864 U CN217287864 U CN 217287864U CN 202220661994 U CN202220661994 U CN 202220661994U CN 217287864 U CN217287864 U CN 217287864U
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- flue gas
- gas desulfurization
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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Abstract
The utility model discloses a flue gas desulfurization equipment, including desulfurizing tower, oxidation tower, absorption tower, electrostatic precipitator, oxidation machine, lime storehouse, chimney and oxidation replacement pond, desulfurizing tower, oxidation tower and absorption tower are linked together in proper order, electrostatic precipitator is linked together with the desulfurizing tower to be linked together through first fan and chimney, the absorption tower is linked together through second fan and chimney, the absorption tower still is linked together through the pump body and lime storehouse, the oxidation machine is linked together with desulfurizing tower and oxidation replacement pond respectively, the oxidation replacement pond still is linked together with oxidation tower and lime storehouse. In this way, the utility model provides a flue gas desulfurization equipment adopts desulfurizing tower, oxidation tower and absorption tower, and the desulfurization reaction is fast, and desulfurization efficiency is high, makes the desulfurization more thorough to practice thrift the energy consumption, solved the problem that scale deposit and jam etc. appear on the inside surface of tower simultaneously through the oxidation replacement pond.
Description
Technical Field
The utility model relates to a technical field of exhaust treatment device especially relates to a flue gas desulfurization equipment.
Background
Harmful gases such as sulfur dioxide, nitrogen oxides and the like in flue gas generated during burning coal, fuel oil and fuel gas are discharged into the atmosphere, so that acid rain is caused, the ecological environment is damaged, and the health of people is influenced. Various flue gas desulfurization technical methods and devices are developed according to stricter control standards provided by relevant environmental regulations in China on the allowable emission concentration of sulfur dioxide and nitrogen oxide in flue gas.
At present, the research of flue gas desulfurization is actively developed at home and abroad, certain progress is made, and some desulfurization technologies and processes are applied and popularized in practical engineering. For example, the lime/limestone-gypsum method is most commonly used, which utilizes the characteristic that lime or limestone can react with sulfur dioxide to perform wet desulfurization and washing on flue gas to achieve the purpose of purifying flue gas, but gypsum generated by the method is easy to solidify in desulfurization equipment, causes blockage to the desulfurization equipment and influences the practical use effect.
Disclosure of Invention
The utility model discloses the main technical problem who solves provides a flue gas desulfurization equipment, is difficult for appearing equipment scale deposit and block up the scheduling problem in the desulfurization, and the desulfurization reaction is fast, and desulfurization efficiency is high.
In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides a flue gas desulfurization equipment, including desulfurizing tower, oxidation tower, absorption tower, electrostatic precipitator, oxidation machine, lime storehouse, chimney and oxidation replacement pond, desulfurizing tower, oxidation tower and absorption tower are linked together in proper order, electrostatic precipitator is linked together with the desulfurizing tower to be linked together through first fan and chimney, the absorption tower is linked together through second fan and chimney, the absorption tower still is linked together through pump body and lime storehouse, the oxidation machine is linked together with desulfurizing tower and oxidation replacement pond respectively, the oxidation replacement pond still is linked together with oxidation tower and lime storehouse.
In a preferred embodiment of the present invention, a start pump is disposed on the pipeline between the desulfurization tower and the oxidizer.
In a preferred embodiment of the present invention, the oxidation tower employs a self-atomizing unit.
In a preferred embodiment of the present invention, the absorption tower is a spray assembly, which is divided into an upper demisting zone, a middle spray zone and a lower slurry zone.
In a preferred embodiment of the present invention, the oxidation and displacement tank comprises an alkaline solution tank, a sedimentation tank and a reduction tank.
In a preferred embodiment of the present invention, a limestone mill and a slurry tank are provided between the lime bin and the pump body.
The utility model has the advantages that: the utility model provides a flue gas desulfurization equipment adopts desulfurizing tower, oxidation tower and absorption tower, and desulfurization reaction is fast, and desulfurization efficiency is high, makes the desulfurization more thorough to practice thrift the energy consumption, solved the problem that scale deposit and jam etc. appear on the inside surface of tower simultaneously through the oxidation replacement pond.
Drawings
FIG. 1 is a schematic structural view of a preferred embodiment of the flue gas desulfurization apparatus of the present invention;
the parts in the drawings are numbered as follows: 1. desulfurizing tower, 2, oxidation tower, 3, absorption tower, 4, electrostatic precipitator, 5, oxidation machine, 6, lime storehouse, 7, chimney, 8, oxidation replacement pond, 9, first fan, 10, second fan, 11, the pump body, 12, start-up pump, 13, limestone mill, 14, thick liquid case.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
Referring to fig. 1, the present embodiment includes:
a flue gas desulfurization device comprises a desulfurization tower 1, an oxidation tower 2, an absorption tower 3, an electrostatic precipitator 4, an oxidation machine 5, a lime bin 6, a chimney 7 and an oxidation and replacement pool 8.
The desulfurization tower 1, the oxidation tower 2 and the absorption tower 3 are sequentially communicated together, the electrostatic dust collector 4 is communicated with the desulfurization tower 1 and communicated with a chimney 7 through a first fan 9, the absorption tower 3 is communicated with the chimney 7 through a second fan 10, the absorption tower 3 is further communicated with a lime bin 6 through a pump body 11, the oxidation machine 5 is respectively communicated with the desulfurization tower 1 and an oxidation and replacement tank 9, and the oxidation and replacement tank 9 is further communicated with the oxidation tower 2 and the lime bin 6. Wherein, a starting pump 12 is arranged on a pipeline between the desulfurizing tower 1 and the oxidation machine 5.
Further, the oxidation tower 2 adopts a self-atomization unit body; the absorption tower 3 adopts a spraying assembly and is divided into an upper demisting area, a middle spraying area and a lower slurry area, and can carry out full-coverage purification and absorption on the flue gas. Meanwhile, in this embodiment, the oxidation and replacement tank 9 includes an alkaline solution tank, a sedimentation tank, and a reduction tank.
A limestone mill 13 and a slurry tank 14 are arranged between the lime bin 6 and the pump body 11. The limestone mill 13 grinds the quick lime in the lime bin 6 to a predetermined particle size, and the slurry in the slurry tank 14 is mixed with the ground quick lime to form quick lime slurry for replacement treatment of the slurry precipitated in the slurry region at the bottom of the absorption tower 3.
The working principle is as follows:
the flue gas enters an electrostatic precipitator 4 to remove large-particle dust, a small part of the filtered flue gas is conveyed to a chimney 7 through a first fan 9 to be discharged, and most of the filtered flue gas enters a desulfurizing tower to remove fine dust and partial sulfur dioxide SO in the flue gas 2 The NO is oxidized into NO with high solubility in an oxidation tower 2 2 And N 2 O 3 Then enters an absorption tower 3, and sodium hydroxide is used as an absorbent to remove the flue gasNitrogen oxide NOx and residual sulfur dioxide SO 2 And after absorption, the slurry in the slurry area at the bottom in the absorption tower 3 is replaced by sodium hydroxide by using limestone as a reducing agent for recycling, wet desulphurization and washing are carried out by using limestone to achieve the aim of purifying flue gas, and the purified flue gas is conveyed to a chimney 7 from the top of the absorption tower 3 through a second fan 10 and is discharged. Meanwhile, forced oxidation and crystallization are carried out through the oxidation and replacement pool 9, and the problems of scaling, blockage and the like on the surface inside the tower are prevented.
The utility model provides a flue gas desulfurization equipment does with the distinguishing characteristic of prior art:
1. meanwhile, the desulfurizing tower, the oxidizing tower and the absorption tower are adopted, so that the desulfurizing reaction speed is high, the desulfurizing efficiency is high, and the desulfurization is more thorough;
2. the slurry in the slurry area at the bottom in the absorption tower is replaced by the sodium hydroxide by using limestone as a reducing agent for recycling, so that the energy consumption is saved;
3. forced oxidation and crystallization are carried out through the oxidation and replacement pool, and the problems of scaling, blockage and the like on the surface inside the tower are prevented.
To sum up, the utility model provides a flue gas desulfurization equipment adopts desulfurizing tower, oxidation tower and absorption tower, and desulfurization reaction rate is fast, and desulfurization efficiency is high, makes the desulfurization more thorough, has solved the problem that scale deposit and jam etc. appear in the inside surface of tower simultaneously through the oxidation replacement pond.
The above-mentioned only be the embodiment of the present invention, not consequently the restriction of the patent scope of the present invention, all utilize the equivalent structure or equivalent flow transform made of the content of the specification and the attached drawings, or directly or indirectly use in other relevant technical fields, all including in the same way the patent protection scope of the present invention.
Claims (6)
1. The utility model provides a flue gas desulfurization equipment, its characterized in that, includes desulfurizing tower, oxidation tower, absorption tower, electrostatic precipitator, oxidation machine, lime storehouse, chimney and oxidation replacement pond, desulfurizing tower, oxidation tower and absorption tower are linked together in proper order, electrostatic precipitator is linked together with the desulfurizing tower to be linked together through first fan and chimney, the absorption tower is linked together through second fan and chimney, the absorption tower still is linked together through pump body and lime storehouse, the oxidation machine is linked together with desulfurizing tower and oxidation replacement pond respectively, the oxidation replacement pond still is linked together with oxidation tower and lime storehouse.
2. The flue gas desulfurization apparatus according to claim 1, wherein a start-up pump is provided on a pipeline between the desulfurization tower and the oxidizer.
3. The flue gas desulfurization apparatus of claim 1, wherein the oxidation tower employs a self-atomizing unit.
4. The flue gas desulfurization apparatus of claim 1, wherein the absorption tower employs a spray assembly, which is divided into an upper demisting zone, a middle spray zone, and a lower slurry zone.
5. The flue gas desulfurization apparatus of claim 1, wherein the oxidative displacement tank comprises an alkaline liquor tank, a settling tank, and a reduction tank.
6. The flue gas desulfurization apparatus of claim 1, wherein a limestone mill and a slurry tank are disposed between the lime bin and the pump body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220661994.1U CN217287864U (en) | 2022-03-25 | 2022-03-25 | Flue gas desulfurization equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220661994.1U CN217287864U (en) | 2022-03-25 | 2022-03-25 | Flue gas desulfurization equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217287864U true CN217287864U (en) | 2022-08-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220661994.1U Active CN217287864U (en) | 2022-03-25 | 2022-03-25 | Flue gas desulfurization equipment |
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| CN (1) | CN217287864U (en) |
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2022
- 2022-03-25 CN CN202220661994.1U patent/CN217287864U/en active Active
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