Spraying rotational flow mixer for flue gas sulfur removal of baking soda

Abstract

The utility model relates to the technical field of mixers, and discloses a baking soda flue gas sulfur injection cyclone mixer, which comprises a flue and a component arranged on the flue, a flue cyclone is arranged in the flue, the flue cyclone is cylindrical, the flue cyclone comprises an outer sleeve, a middle sleeve and an inner sleeve, and the outer sleeve is sleeved on the middle sleeve. A plurality of inclined 45-degree outer layer swirl vanes are uniformly arranged between the outer sleeve and the middle sleeve, a plurality of inclined 45-degree inner layer swirl vanes are uniformly arranged between the middle sleeve and the inner sleeve, and the outer sleeve is fixedly welded with the inner wall of the flue. According to the device, the flue cyclone is arranged in the flue, and the baking soda nozzle extending into the flue is arranged, so that the sprayed baking soda is more dispersed, the baking soda and the sulfur-containing flue gas mixed gas are more uniformly mixed, and the mixing reaction is more sufficient. The outer sleeve, the middle sleeve and the inner sleeve are arranged in the flue cyclone, so that passing baking soda is more dispersed, and the baking soda is prevented from being blocked when passing through the same pipeline.

Description

Technical Field

[0001] The utility model relates to the field of mixers, in particular to a baking soda flue gas desulfurization jet cyclone mixer. Background Art

[0002] Baking soda (sodium bicarbonate) dry flue gas desulfurization technology is a technology that uses baking soda as a desulfurizer to absorb and remove SO2 in flue gas. Baking soda is a good SO2 absorbent, and its absorption rate is higher than that of calcium-based absorbents. The absorption of SO2 in flue gas by baking soda is a gas-solid phase reaction, with a fast reaction speed, high desulfurization efficiency, and high absorbent utilization rate. Baking soda reacts with sulfur-containing flue gas after mixing in the flue, but because baking soda and sulfur-containing flue gas cannot be fully mixed, the reaction is not sufficient, and the amount of baking soda injection needs to be increased to completely absorb the SO2 in the flue gas.

[0003] The patent application with publication number CN116407924A discloses an activated carbon cyclone-type flue gas uniform mixing and injection device, which includes a flue shell, one end of which is a flue gas inlet end, and the other end of which is a flue gas outlet end; a smoke cyclone convergence layer, which is installed in the flue shell along the direction of smoke flow and close to the smoke inlet end, and is used to cyclone converge the smoke entering from the smoke inlet end; a spray gun, which is inserted in the middle of the flue shell along the direction of smoke flow and sprays activated carbon; and a multi-layer uniform mixing blade layer, which is installed in the flue shell along the direction of smoke flow and close to the smoke outlet end, and is used to uniformly mix the activated carbon sprayed by the spray gun and the smoke coming out of the smoke cyclone convergence layer.

[0004] The prior art provides a simple swirl device in the flue, and provides blades on the inner wall of the flue to mix the flue gas. The structure is complex, the production process of the device is complicated, and the mixing effect needs to be improved.

[0005] Therefore, a new technical solution is needed to solve the above technical problems. Utility Model Content

[0006] The utility model aims to provide a baking soda flue gas desulfurization jet cyclone mixer, so that the baking soda entering the flue and the sulfur-containing flue gas are fully mixed in the flue and then react, the baking soda utilization rate is higher and the reaction is more complete.

[0007] The technical solution adopted by the utility model is:

[0008] A baking soda flue gas desulfurization injection swirl mixer comprises a flue and a component arranged on the flue, wherein a flue cyclone is arranged in the flue, the flue cyclone is cylindrical, comprises an outer sleeve, a middle sleeve, and an inner sleeve, a plurality of outer swirl blades inclined at 45 degrees are evenly arranged between the outer sleeve and the middle sleeve, a plurality of inner swirl blades inclined at 45 degrees are evenly arranged between the middle sleeve and the inner sleeve, and the outer sleeve is welded and fixed to the inner wall of the flue.

[0009] By adopting the above structure, the baking soda and the sulfur-containing flue gas entering the flue are fully mixed in the flue and then react, so the baking soda utilization rate is higher and the reaction is more complete.

[0010] Preferably, the outer sleeve, the middle sleeve and the inner sleeve are cylindrical sleeves with the same center, and the distance between the outer sleeve and the middle sleeve is greater than the distance between the middle sleeve and the inner sleeve.

[0011] By adopting the above structure, an outer sleeve, a middle sleeve and an inner sleeve are arranged, so that the passing baking soda and the sulfur-containing flue gas mixed gas can be more dispersed, which is convenient for full reaction.

[0012] Preferably, the outer swirl blades and the inner swirl blades are inclined in opposite directions.

[0013] By adopting the above structure, airflows in opposite directions are formed, the baking soda is more dispersed, and the baking soda and the sulfur-containing flue gas mixture are mixed more evenly.

[0014] Preferably, eight outer swirl blades are arranged between the outer sleeve and the middle sleeve.

[0015] Preferably, six inner swirl blades are arranged between the middle sleeve and the inner sleeve.

[0016] By adopting the above structure, the baking soda passing through can be more dispersed, which is convenient for full reaction.

[0017] Preferably, a flue side wall is provided with a flue inlet, which is arranged obliquely, and an entry direction of the flue inlet is opposite to the flue cyclone.

[0018] By adopting the above structure, the baking soda is blown toward the flue cyclone, so that the baking soda passing through is more dispersed, which is convenient for full reaction.

[0019] Preferably, the flue inlet is a baking soda delivery pipe, an elbow is arranged at the inner end of the baking soda delivery pipe, the elbow is a baking soda nozzle, and the end of the baking soda nozzle is a circular hole facing the flue cyclone.

[0020] By adopting the above structure, the end of the baking soda nozzle faces the flue cyclone, which prevents the baking soda from being blown toward the inner wall of the flue to form accumulation, resulting in waste and blockage.

[0021] Compared with the prior art, the utility model has the following beneficial effects:

[0022] 1. The utility model device is provided with a flue cyclone in the flue, and a baking soda nozzle extending into the flue is provided, so that the injected baking soda can be more dispersed, the baking soda and the sulfur-containing flue gas mixed gas can be mixed more evenly, and the mixing reaction can be more complete.

[0023] 2. The utility model device arranges an outer sleeve, a middle sleeve and an inner sleeve in the flue cyclone, so that the baking soda passing through is more dispersed, and avoids the baking soda from clogging when passing through the same pipeline.

[0024] 3. The outer swirl blades and the inner swirl blades arranged in the flue cyclone of the utility model are inclined in opposite directions, which can form clockwise and counterclockwise airflows, making the baking soda more dispersed and the baking soda and the sulfur-containing flue gas mixture more evenly mixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the flue cyclone of the utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the baking soda delivery pipeline of the utility model;

[0028] Figure 4 It is a structural schematic diagram of the flue inlet of the utility model.

[0029] Among them: 1. Baking soda delivery pipeline; 2. Flue cyclone; 3. Flue; 4. Sulfur-containing flue gas; 5. Baking soda nozzle; 6. Outer casing; 7. Middle casing; 8. Inner casing; 9. Outer swirl blades; 10. Inner swirl blades; 11. Flue inlet. DETAILED DESCRIPTION

[0030] like Figure 1-4 As shown, a baking soda flue gas desulfurization injection cyclone mixer comprises a flue 3 and components arranged on the flue 3, a flue cyclone 2 is arranged in the flue 3, the flue cyclone 2 is cylindrical, the flue cyclone 2 comprises an outer sleeve 6, a middle sleeve 7, and an inner sleeve 8, a plurality of outer cyclone blades 9 inclined at 45 degrees are evenly arranged between the outer sleeve 6 and the middle sleeve 7, a plurality of inner cyclone blades 10 inclined at 45 degrees are evenly arranged between the middle sleeve 7 and the inner sleeve 8, 8 outer cyclone blades 9 are arranged between the outer sleeve 6 and the middle sleeve 7, 6 inner cyclone blades 10 are arranged between the middle sleeve 7 and the inner sleeve 8, and the outer sleeve 6 is welded and fixed to the inner wall of the flue 3. The device is provided with a flue cyclone 2 in the flue 3, and a baking soda nozzle 5 extending into the flue 3, so that the baking soda and the sulfur-containing flue gas entering the flue 3 are fully mixed and then reacted in the flue 3, and the baking soda and the sulfur-containing flue gas mixed gas are mixed more evenly and the mixing reaction is more complete.

[0031] The outer sleeve 6, the middle sleeve 7, and the inner sleeve 8 are cylindrical sleeves with the same center, and the distance between the outer sleeve 6 and the middle sleeve 7 is greater than the distance between the middle sleeve 7 and the inner sleeve 8. The outer swirl blades 9 are inclined in the opposite direction to the inner swirl blades 10. The device arranges the outer sleeve 6, the middle sleeve 7, and the inner sleeve 8 in the flue cyclone 2, so that the baking soda passing through is more dispersed, and the baking soda is prevented from being blocked in the same pipeline. The outer swirl blades 9 arranged in the flue cyclone 2 are inclined in the opposite direction to the inner swirl blades 10, and can form clockwise and counterclockwise airflows, so that the baking soda is more dispersed, and the baking soda and the sulfur-containing flue gas mixture are mixed more evenly.

[0032] A flue inlet 11 is provided on the side wall of the flue 3, and the flue inlet 11 is arranged obliquely, and the entry direction of the flue inlet 11 is opposite to the flue cyclone 2. The flue inlet 11 is a baking soda delivery pipe 1, and an elbow is provided at the inner end of the baking soda delivery pipe 1, and the elbow is a baking soda nozzle 5, and the end of the baking soda nozzle 5 is a circular hole facing the flue cyclone 2. The end of the baking soda nozzle 5 faces the flue cyclone 2 to avoid blowing baking soda to the inner wall of the flue, forming accumulation, causing waste and clogging.

[0033] When the device is in use, the sulfur-containing flue gas 4 is blown into the flue 3, and baking soda is blown into the flue 3 from the baking soda delivery pipe 1. When the baking soda and the sulfur-containing flue gas 4 pass through the inner blades of the cyclone mixer 2, they rotate clockwise and diffuse outward, and when the outer layer of gas passes through the outer blades, it rotates counterclockwise and diffuses inward. After the inner and outer air flows pass through the cyclone mixer 2, the sulfur-containing flue gas 4 and the baking soda are fully mixed and reacted, thereby improving the reaction efficiency and greatly saving the consumption of baking soda.

[0034] The embodiments described above are merely descriptions of preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by those skilled in the art should be included in the protection scope determined by the claims of the present invention.

Claims

1. A baking soda desulfurization flue gas injection cyclone mixer, comprising a flue and components arranged on the flue, characterized in that: A flue cyclone is arranged in the flue, the flue cyclone is cylindrical, and comprises an outer sleeve, a middle sleeve, and an inner sleeve. A plurality of outer swirl blades inclined at 45 degrees are evenly arranged between the outer sleeve and the middle sleeve, and a plurality of inner swirl blades inclined at 45 degrees are evenly arranged between the middle sleeve and the inner sleeve. The outer sleeve is welded and fixed to the inner wall of the flue.

2. A baking soda desulfurizing flue gas injection cyclone mixer according to claim 1, characterized in that: The outer sleeve, the middle sleeve and the inner sleeve are cylindrical sleeves with the same center, and the distance between the outer sleeve and the middle sleeve is greater than the distance between the middle sleeve and the inner sleeve.

3. A baking soda desulfurizing flue gas injection cyclone mixer according to claim 1, characterized in that: The outer swirl blades and the inner swirl blades are inclined in opposite directions.

4. A baking soda desulfurizing flue gas injection cyclone mixer according to claim 1, characterized in that: Eight outer swirl blades are arranged between the outer sleeve and the middle sleeve.

5. A baking soda desulfurizing flue gas injection cyclone mixer according to claim 1, characterized in that: Six inner swirl blades are arranged between the middle sleeve and the inner sleeve.

6. A baking soda desulfurizing flue gas jet cyclone mixer according to claim 1, characterized in that: The flue side wall is provided with a flue inlet, which is arranged obliquely, and the entry direction of the flue inlet is opposite to the flue cyclone.

7. A baking soda desulfurizing flue gas jet cyclone mixer according to claim 6, characterized in that: The flue inlet is a baking soda delivery pipeline, the inner end of the baking soda delivery pipeline is provided with an elbow, the elbow is a baking soda nozzle, and the end of the baking soda nozzle is a circular hole facing the flue cyclone.

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