CO separation and recovery device for flue gas purification

Abstract

The utility model relates to the field of tail gas treatment, in particular to a CO separation and recovery device for flue gas purification, which comprises a purification pipe vertically arranged, and further comprises an activated carbon filter plate fixedly connected in the purification pipe; the dust filtering plate is fixedly connected in the purifying pipe and is positioned between the air inlet end of the purifying pipe and the activated carbon filtering plate; the cleaning assembly is connected to the dust filtering plate and used for cleaning the dust filtering plate, by adopting the structure, through the arrangement of the dust filtering plate and the cleaning assembly, dust in smoke dust can be effectively filtered, blockage of activated carbon caused by dust accumulation is reduced, meanwhile, the cleaning assembly can enable the dust filtering plate to be kept in a normal state for a long time, and the service life of the dust filtering plate is prolonged. And long-time use is facilitated.

Description

Technical Field

[0001] This utility model relates to a CO separation and recovery device for flue gas purification, and particularly to a CO separation and recovery device for flue gas purification applied in the field of exhaust gas treatment. Background Technology

[0002] During industrial production, a large amount of flue gas is emitted into the atmosphere. The harmful gases contained in this gas, such as carbon monoxide (CO), pose a serious threat to the environment and human health. With increasingly stringent environmental protection requirements, the development of efficient CO separation and recovery devices for flue gas purification has become a key task in the field of industrial waste gas treatment.

[0003] Chinese utility model patent CN202122740894.6 discloses a system comprising a spray tank extending through the top surface, a purification tank positioned directly above the spray tank, the purification tank and the spray tank being fixedly connected, the purification tank extending through both its top and bottom ends, and threads formed on the inner wall of the purification tank. An assembly tank extending through both its top and bottom ends is vertically positioned within the purification tank, the assembly tank having an internal thread at its top and an external thread on its exterior that mates with the internal thread of the purification tank. A purification component is located inside the assembly tank, achieving uniform activated carbon adsorption and improving adsorption efficiency.

[0004] The activated carbon currently used for separating and purifying CO in flue gas is prone to dust accumulation and blockage after a period of use, which affects the filtration and adsorption of CO by the activated carbon and has certain shortcomings. Utility Model Content

[0005] In view of the above-mentioned prior art, the technical problem to be solved by this utility model is that in the process of separating and recovering CO from flue gas using activated carbon, the activated carbon is often blocked due to the presence of dust in the flue gas.

[0006] To address the aforementioned problems, this utility model provides a CO separation and recovery device for flue gas purification, including a purification pipe, which is vertically arranged, and further comprising:

[0007] Activated carbon filter plates are fixedly connected inside the purification pipe;

[0008] The dust filter plate is fixedly connected inside the purification pipe, and is located between the air inlet end of the purification pipe and the activated carbon filter plate.

[0009] The cleaning component, attached to the dust filter plate, is used to clean the dust filter plate.

[0010] In the CO separation and recovery device for flue gas purification mentioned above, the accumulation of dust is reduced to prevent the activated carbon from becoming clogged.

[0011] As a further improvement of this application, the cleaning component includes: a rotating shaft, a rotating rod, and an air inlet pipe. The rotating shaft is rotatably connected to the axis of the dust filter plate. Multiple sets of rotating rods are fixedly connected to the rotating shaft at equal intervals. Gas channels are opened inside the rotating shaft and the rotating rods. Multiple sets of air outlets communicating with the gas channels are provided on the end of the rotating rod away from the rotating shaft. The air outlets are inclined. The air inlet pipe is connected to the air outlets through the gas channels. The airflow generated by the air outlets causes the rotating shaft to rotate on the dust filter plate.

[0012] As a further improvement of this application, the bottom of the rotating rod is provided with multiple sets of back-blowing ports that communicate with the gas channel. The back-blowing ports face the air outlet of the dust filter plate, and the air inlet pipe is connected to the back-blowing ports through the gas channel.

[0013] As a further improvement of this application, a number of secondary rods are fixedly connected to the end of the rotating shaft away from the rotating rod, and a number of brushes are fixedly connected to the secondary rods. The brushes are used to clean the surface of the dust filter plate.

[0014] As another improvement of this application, a rotary connector is fixedly connected to the rotating shaft, and the air inlet end of the rotary connector is rotatably connected to the air inlet pipe.

[0015] As a further improvement to this application, a bearing is connected to the axis of the dust filter plate, and the rotating shaft is rotatably connected in the fixed bearing.

[0016] In summary, this device, through the design of the dust filter plate and cleaning components, can effectively filter dust from the smoke and reduce dust accumulation that could clog the activated carbon. At the same time, the cleaning components can keep the dust filter plate in normal condition for a long time, facilitating long-term use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the first embodiment of this application;

[0018] Figure 2 This is a schematic cross-sectional view of the first embodiment of this application. Figure 1 ;

[0019] Figure 3 This is a schematic cross-sectional view of the first embodiment of this application. Figure 2 ;

[0020] Figure 4 This is the first embodiment of the present application. Figure 3 Enlarged view of section A;

[0021] Figure 5 This is a schematic diagram of the structure of the rotating rod, rotating shaft, and air outlet in one embodiment of this application.

[0022] Explanation of the labels in the diagram:

[0023] 1. Purification pipe; 2. Activated carbon filter plate; 3. Dust filter plate; 401. Bearing; 402. Rotating shaft; 403. Inner tube; 501. Rotating rod; 502. Air outlet; 503. Backflush port; 601. Secondary rod; 602. Brush; 701. Air inlet pipe; 702. Rotary connector. Detailed Implementation

[0024] The following describes one embodiment of this application in detail with reference to the accompanying drawings.

[0025] First implementation method:

[0026] Figure 1-5 The diagram illustrates a CO separation and recovery device for flue gas purification, comprising a purification pipe 1, which is vertically arranged, and further comprising: an activated carbon filter plate 2, fixedly connected inside the purification pipe 1; a dust filter plate 3, fixedly connected inside the purification pipe 1, located between the air inlet end of the purification pipe 1 and the activated carbon filter plate 2; and a cleaning component connected to the dust filter plate 3 for cleaning the dust filter plate 3. The cleaning component includes: a rotating shaft 402, a rotating rod 501, and an air inlet pipe 701. The rotating shaft 402 is rotatably connected to the axis of the dust filter plate 3. Multiple sets of rotating rods 501 are fixedly connected to the rotating shaft 402 at equal intervals. Gas channels 8 are provided inside both the rotating shaft 402 and the rotating rods 501. Multiple sets of air outlets 502 communicating with the gas channels 8 are provided on the end of the rotating rod 501 away from the rotating shaft 402. The air outlets 502 are inclined. The air inlet pipe 701 connects to the air outlets 502 through the gas channels 8. The airflow generated by the outlet 502 causes the rotating shaft 402 to rotate on the dust filter plate 3. Multiple sets of back-blowing ports 503, connected to the gas channel 8, are provided at the bottom of the rotating rod 501. The back-blowing ports 503 face the outlet end of the dust filter plate 3. The inlet pipe 701 is connected to the back-blowing ports 503 through the gas channel 8. Multiple sets of auxiliary rods 601 are fixedly connected to the end of the rotating shaft 402 away from the rotating rod 501. Multiple sets of brushes 602 are fixedly connected to the auxiliary rods 601 for cleaning the surface of the dust filter plate 3. A rotating connector 702 is fixedly connected to the rotating shaft 402, and the inlet end of the rotating connector 702 is rotatably connected to the inlet pipe 701. A bearing 401 is fixedly connected to the axis of the dust filter plate 3, and the rotating shaft 402 is rotatably connected within the bearing 401. The gas channel 8 within the rotating shaft 402 is connected to the gas channel 8 within the rotating rod 501.

[0027] When the mixed flue gas containing dust and harmful gases such as CO generated by industrial production enters the purification pipe 1, it first faces the interception of the dust filter plate 3. With its fine filter structure, the dust filter plate 3 can effectively block most dust particles, initially purifying the flue gas and preventing dust from damaging the subsequent activated carbon filter plate 2. The flue gas, after being initially purified by the dust filter plate 3, smoothly enters the activated carbon filter plate 2. The activated carbon filter plate 2 exerts its strong adsorption effect to deeply adsorb and separate harmful gases such as CO in the flue gas. The purified gas is finally discharged into the atmosphere, while the adsorbed useful gases such as CO can be recycled through subsequent desorption and other processes.

[0028] Over time, a large amount of dust will gradually accumulate on the filter pores inside the dust filter plate 3. When its dust filtration performance begins to decline, the dust filter plate 3 can be cleaned using the cleaning component. High-pressure gas is introduced from an external air source through the air inlet pipe 701 into the rotary connector 702. The rotary connector 702 ensures that the input gas is stably transmitted to the internal channel of the rotating shaft 402 during rotation. Subsequently, the gas enters the rotating rod 501 through the rotating shaft 402 and finally enters the air outlet 502. Inside the back-blowing port 503, gas is ejected from the inclined air outlet 502, which is tilted downwards towards the dust filter plate 3. The ejected gas generates a strong blowing force on the surface of the dust filter plate 3, blowing away the dust adhering to the air inlet surface of the dust filter plate 3. At the same time, the reaction force generated by the gas ejected from the air outlet 502 drives the rotating shaft 402 to rotate within the bearing 401, causing the rotating rod 501 to perform circumferential motion, thereby achieving cleaning of a wider area of ​​the surface of the dust filter plate 3.

[0029] While the surface is being purged at the air outlet 502, the high-pressure gas delivered by the air inlet pipe 701 is also ejected through the back-blowing port 503 at the bottom of the rotating rod 501. The gas ejected from these back-blowing ports 503 blows in the opposite direction toward the air outlet of the dust filter plate 3, penetrates deep into the filter holes of the dust filter plate 3, blows off the dust remaining in the filter holes, and further improves the cleanliness of the dust filter plate 3.

[0030] As the shaft 402 rotates, the auxiliary rod 601 and the brush 602 also rotate. The brush 602 brushes the air inlet end of the dust filter plate 3, working in conjunction with the gas blowing to thoroughly remove the stubborn dust adhering to the air inlet end of the dust filter plate 3. After being thoroughly cleaned by the cleaning components, the dust filter plate 3 regains its good dust filtration performance and can continue to efficiently intercept dust in the flue gas.

[0031] In light of current practical needs, the above-described embodiments adopted in this application are not limited to these. Any changes made within the scope of knowledge possessed by those skilled in the art without departing from the concept of this application still fall within the protection scope of this utility model.

Claims

1. A CO separation and recovery device for flue gas cleaning, comprising a cleaning pipe (1) vertically arranged, characterized in that, Also include: Activated carbon filter plate (2), fixedly connected in the purification pipe (1); Filter dust plate (3), fixedly connected in the purification pipe (1), the filter dust plate (3) is located between the air inlet end of purification pipe (1) and activated carbon filter plate (2); Cleaning assembly, connected on the filter dust plate (3), the cleaning assembly is used for cleaning filter dust plate (3).

2. The CO separation and recovery device for flue gas purification according to claim 1, characterized by: The cleaning assembly includes: rotating shaft (402), rotating rod (501), air inlet pipe (701), the rotating shaft (402) is rotatably connected at the axis of filter dust plate (3), a plurality of rotating rods (501) are fixedly connected on the rotating shaft (402) at equal intervals, the rotating shaft (402) and the rotating rod (501) are internally provided with gas passages (8), a plurality of gas outlets (502) are provided on the end of the rotating rod (501) away from the rotating shaft (402) and communicated with the gas passages (8), the gas outlet (502) is inclinedly arranged, the air inlet pipe (701) is communicated with the gas outlet (502) through the gas passage (8), the gas flow thrust generated by the gas outlet (502) makes the rotating shaft (402) rotate on the filter dust plate (3).

3. A CO separation and recovery device for flue gas cleaning according to claim 2, characterized by: The bottom of the rotating rod (501) is provided with a plurality of back blowing openings (503) communicated with the gas passages (8), the back blowing opening (503) faces the air outlet end of the filter dust plate (3), and the air inlet pipe (701) is communicated with the back blowing opening (503) through the gas passage (8).

4. The CO separation and recovery device for flue gas purification according to claim 2, characterized by: A plurality of auxiliary rods (601) are fixedly connected on the end of the rotating shaft (402) away from the rotating rod (501), a plurality of brushes (602) are fixedly connected on the auxiliary rod (601), and the brush (602) is used for cleaning the surface of the filter dust plate (3).

5. The CO separation and recovery device for flue gas purification according to claim 2, characterized by: The rotating shaft (402) is fixedly connected with a rotating connector (702), and the air inlet end of the rotating connector (702) is rotatably connected with the air inlet pipe (701).

6. The CO separation and recovery device for flue gas purification according to claim 2, characterized by: The axis of the filter dust plate (3) is fixedly connected with a bearing (401), and the rotating shaft (402) is rotatably connected in the bearing (401).

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