Treatment system for solving problem that desorption cannot be carried out due to lack of steam during ionic liquid desulfurization

Abstract

The utility model provides a treatment system for solving the problem that desorption cannot be carried out due to lack of steam during ionic liquid desulfurization, which comprises an annular collection exhaust fan, a packing washing combined tower, an ionic liquid absorption SO2 combined tower and an alkali liquor security tower are arranged on one side of the annular collection exhaust fan, the annular collection exhaust fan is communicated with the bottom of the packing washing combined tower through a communicating pipe I, and the communicating pipe II is communicated with the bottom of the packing washing combined tower through a communicating pipe II. A communicating pipe II is arranged between the filler washing combined tower and the ionic liquid absorption SO2 combined tower; a communicating pipe III is arranged between the ionic liquid absorption SO2 combination tower and the alkali liquor security tower; a tail gas chimney is arranged at the top of the alkali liquor security tower; the flue gas desulfurization device is simple in structure and convenient to use, sulfur in flue gas can be fully separated through the annular collection exhaust fan, the seasoning washing combined tower, the ionic liquid SO2 absorption combined tower and the alkali liquor security tower, and the concentration of SO2 in the flue gas exhausted after desulfurization can always reach the national emission standard.

Description

Technical Field

[0001] This utility model relates to the field of industrial waste gas treatment technology, and in particular to a treatment system for dealing with the inability to analyze waste gas due to lack of steam in ion liquid desulfurization. Background Technology

[0002] With rapid industrial development and expanding urban areas, our environment is suffering from increasingly severe pollution. In particular, waste gases from industries such as metallurgy, chemicals, and mining pose potential hazards. Even trace concentrations of heavy metals like arsenic, lead, and SO2 in these waste gases exhibit significant biotoxicity, directly endangering the human living environment. Sulfur dioxide is highly harmful to the human body, easily absorbed by moist mucous membranes, forming sulfurous acid and sulfuric acid. Sulfur dioxide poisoning can be classified as acute or chronic. Mild acute poisoning may present with symptoms such as tearing, photophobia, sore throat, and cough. Severe poisoning can lead to pulmonary edema within hours. Chronic effects of sulfur dioxide, with prolonged low-density exposure, include systemic symptoms such as headache, dizziness, and fatigue, as well as respiratory damage such as chronic rhinitis, pharyngitis, and bronchitis.

[0003] Statistical results from existing industrial waste gas treatment systems show that while emissions meet national standards most of the time, there are often a few instances where production unforeseen circumstances cause abnormalities, making it difficult to consistently meet compliance requirements. Therefore, the importance, timeliness, and operability of emergency plans in the combined application of several processes are self-evident. Changes in factory production processes, abnormal operation of waste gas treatment facilities, and operational errors can all affect the normal operation of industrial waste gas treatment systems. To address these technical problems, a treatment system is proposed to handle situations where ion-liquid desulfurization lacks steam and cannot be desorbed. Utility Model Content

[0004] To address the aforementioned technical problems, this invention provides a treatment system for the inability to analyze ionic liquid desulfurization due to a lack of steam.

[0005] The technical solution of this utility model is as follows: a treatment system for the inability to analyze flue gas due to lack of steam in ion-liquid desulfurization, comprising: a ring-collecting exhaust fan; a packed scrubbing tower is provided on one side of the ring-collecting exhaust fan; the ring-collecting exhaust fan is connected to the bottom of the packed scrubbing tower via a connecting pipe 1; the ring-collecting exhaust fan is used to collect the surrounding flue gas and discharge it into the bottom of the packed scrubbing tower; an ion-liquid SO2 absorption tower is provided on one side of the packed scrubbing tower; a connecting pipe 2 is provided between the packed scrubbing tower and the ion-liquid SO2 absorption tower; one end of the connecting pipe 2 is connected to the top of the packed scrubbing tower, and the other end is connected to the bottom of the ion-liquid SO2 absorption tower; an alkali protection tower is provided on one side of the ion-liquid SO2 absorption tower; a connecting pipe 3 is provided between the ion-liquid SO2 absorption tower and the alkali protection tower; one end of the connecting pipe 3 is connected to the top of the ion-liquid SO2 absorption tower, and the other end is connected to the alkali protection tower; a tail gas chimney is provided at the top of the alkali protection tower for discharging the desulfurized flue gas.

[0006] Furthermore, the alkaline solution safety tower is equipped with a double-layer spraying device in the middle, the double-layer spraying device comprising:

[0007] The tower comprises an upper pipe and a lower pipe, with the upper pipe positioned above the lower pipe and arranged parallel to each other. The upper and lower pipes are fixed in the middle of the alkali safety tower and connected to a main pipe via a connecting pipe. A water pump is located at the other end of the main pipe and is housed in a water tank. Spray heads are installed at the bottom of both the upper and lower pipes, facing downwards towards the lower end of the alkali safety tower, and the spray heads on the upper and lower pipes are arranged alternately. Furthermore, the packed washing tower is integrally assembled from an electrostatic precipitator and a washing tower section from top to bottom.

[0008] Furthermore, the electrostatic precipitator is equipped with a dilution valve for introducing air.

[0009] Furthermore, a gas composition analyzer is installed on the second connecting pipe.

[0010] Compared with the prior art, this utility model has the following advantages: simple structure and convenient use. Through the ring-collecting exhaust fan, the seasoning washing combination tower, the ion liquid absorption SO2 combination tower, and the alkali solution safety tower, the sulfur in the flue gas can be fully removed, so that the SO2 concentration in the flue gas discharged after desulfurization always meets the national emission standards. Attached Figure Description

[0011] Figure 1 This is a schematic diagram illustrating the principle of this utility model;

[0012] Figure 2 This is a schematic diagram of the double-layer spray system.

[0013] 1. Circulating exhaust fan; 2. Packed scrubbing tower; 201. Scrubbing tower section; 202. Electrostatic precipitator; 203. Dilution air valve; 3. Ion liquid absorption SO2 tower; 4. Alkali solution safety tower; 5. Tail gas chimney; 6. Connecting pipe one; 7. Connecting pipe two; 701. Dilution air valve; 8. Connecting pipe three; 9. Double-layer spray device; 901. Upper pipe; 902. Lower pipe; 903. Spray head; 904. Connecting pipe; 905. Main pipe; 906. Water tank; 907. Water pump. Detailed Implementation

[0014] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model. Example

[0015] like Figures 1-2 The following describes a treatment system for addressing the lack of steam in ion-liquid desulfurization, which prevents desorption. The system includes: a ring-collecting exhaust fan 1; a packed scrubbing tower 2 located on one side of the ring-collecting exhaust fan 1; the ring-collecting exhaust fan 1 being connected to the bottom of the packed scrubbing tower 2 via a connecting pipe 6; the ring-collecting exhaust fan 1 collecting the surrounding flue gas and discharging it into the bottom of the packed scrubbing tower 2; an ion-liquid SO2 absorption tower 3 located on one side of the packed scrubbing tower 2; and a connecting pipe between the packed scrubbing tower 2 and the ion-liquid SO2 absorption tower 3. Connecting pipe 2 7, one end of which is connected to the top of the packed washing combined tower 2, and the other end of which is connected to the bottom of the ion liquid absorption SO2 combined tower 3; an alkali safety tower 4 is provided on one side of the ion liquid absorption SO2 combined tower 3, and a connecting pipe 3 8 is provided between the ion liquid absorption SO2 combined tower 3 and the alkali safety tower 4, one end of which is connected to the top of the ion liquid absorption SO2 combined tower 3, and the other end of which is connected to the alkali safety tower 4; a tail gas chimney 5 is provided at the top of the alkali safety tower 4, and the tail gas chimney 5 is used to discharge the desulfurized flue gas.

[0016] In this embodiment, a double-layer spraying device 9 is provided in the middle of the alkali solution safety tower 4. The double-layer spraying device 9 includes:

[0017] The upper pipe 901 and the lower pipe 902 are arranged parallel to each other, with the upper pipe 901 located above the lower pipe 902. The upper pipe 901 and the lower pipe 902 are fixed in the middle of the alkali safety tower 4, and are connected to the main pipe 905 via a connecting pipe 904. A water pump 907 is installed at the other end of the main pipe 905, and the water pump 907 is located inside a water tank 906. Both the upper pipe 901 and the lower pipe 902 have spray heads 903 at their bottoms, facing downwards towards the lower end of the alkali safety tower 4, and the spray heads 903 on the upper pipe 901 and the lower pipe 902 are arranged alternately. Furthermore, the packed washing combination tower 2 is integrally assembled from the electrostatic precipitator 202 and the washing tower section 201 from top to bottom.

[0018] In this embodiment, the electrostatic precipitator 202 is equipped with a dilution air valve 701 for introducing air.

[0019] In this embodiment, a gas composition analyzer is installed on the second connecting pipe.

[0020] Compared with the prior art, this utility model has the following advantages: simple structure and convenient use. Through the ring-collecting exhaust fan 1, the seasoning washing combination tower, the ion liquid absorption SO2 combination tower 3, and the alkali safety tower 4, the sulfur in the flue gas can be fully removed, so that the SO2 concentration in the flue gas discharged after desulfurization always meets the national emission standards.

Claims

1. A treatment system for addressing the inability to desorb sulfur due to lack of steam in ionic liquid desulfurization, characterized in that: include: A ring-type exhaust fan is provided. A packed scrubbing tower is located on one side of the ring-type exhaust fan. The ring-type exhaust fan is connected to the bottom of the packed scrubbing tower via a connecting pipe. The ring-type exhaust fan is used to collect the surrounding flue gas and discharge it into the bottom of the packed scrubbing tower. An ion-liquid absorption SO2 tower is located on one side of the packed scrubbing tower. A connecting pipe is provided between the packed scrubbing tower and the ion-liquid absorption SO2 tower. One end of the connecting pipe is connected to the top of the packed scrubbing tower, and the other end is connected to the bottom of the ion-liquid absorption SO2 tower. An alkali safety tower is located on one side of the ion-liquid absorption SO2 tower. A connecting pipe is provided between the ion-liquid absorption SO2 tower and the alkali safety tower. One end of the connecting pipe is connected to the top of the ion-liquid absorption SO2 tower, and the other end is connected to the alkali safety tower. A tail gas chimney is located at the top of the alkali safety tower, and the tail gas chimney is used to discharge the desulfurized flue gas.

2. The treatment system for addressing the lack of steam and inability to desorb during ionic liquid desulfurization as described in claim 1, characterized in that: The alkaline solution safety tower is equipped with a double-layer spray device in the middle, and the double-layer spray device includes: The upper pipe and the lower pipe are arranged parallel to each other, with the upper pipe located above the lower pipe. The upper pipe and the lower pipe are fixed in the middle of the alkali safety tower and are connected to the main pipe through a connecting pipe. A water pump is provided at the other end of the main pipe and is located in a water tank. Spray heads are provided at the bottom of both the upper pipe and the lower pipe, with the spray heads facing the lower end of the alkali safety tower. The spray heads of the upper pipe and the lower pipe are arranged alternately.

3. The treatment system for addressing the lack of steam and inability to desorb during ionic liquid desulfurization as described in claim 1, characterized in that: The packed scrubbing tower is assembled from an electrostatic precipitator and a scrubbing tower section from top to bottom.

4. The treatment system for addressing the lack of steam and inability to desorb during ionic liquid desulfurization as described in claim 3, characterized in that: The electrostatic precipitator is equipped with a dilution air valve for introducing air.

5. The treatment system for addressing the lack of steam and inability to desorb during ionic liquid desulfurization as described in claim 1, characterized in that: A gas composition analyzer is installed on the second connecting pipe.

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