A multi-point feeding device for a suspension separation desulfurization tower

Abstract

The utility model relates to a kind of suspension separation formula desulfurization tower ring tower multi-point feeding device, comprising: ring tower chute;The ring tower chute is circular;Multiple feed ports are provided on the ring tower chute;Multiple discharge ports are provided on the side of the ring tower chute;Spraying chute is provided at the lower end of the discharge port;The discharge end of the spraying chute extends into the desulfurization tower.The utility model device makes desulfurizer evenly distributed in the cross section of desulfurization tower, so that desulfurizer and flue gas are in full contact, and improve the desulfurization efficiency.

Description

Technical Field

[0001] This utility model relates to the field of environmental protection equipment technology, and in particular to a multi-point feeding device for a suspension separation desulfurization tower ring tower. Background Technology

[0002] Traditional semi-dry desulfurization systems use circulating fluidized bed desulfurization towers. These towers typically employ single-point or two-point feeding, utilizing the high-velocity zone at the bottom of the tower to lift the desulfurizing agent, forming a fluidized bed (typically with a bed resistance of approximately 2000–3000 Pa). The desulfurization reaction occurs as the flue gas passes through the fluidized bed. The greater the resistance formed by the fluidized bed, the better the desulfurization effect, but the higher the operating energy consumption. Furthermore, the bed is prone to collapse when flue gas fluctuates, causing material accumulation and blockage in the desulfurization tower, affecting normal operation. Utility Model Content

[0003] This invention primarily addresses the technical problems of high energy consumption and easy material blockage in existing technologies by proposing a multi-point feeding device for a suspension-separation desulfurization tower. This device feeds the desulfurizing agent into the multi-point feeding device through an inlet (one or more inlets can be set depending on the situation), evenly distributing the desulfurizing agent to 2-32 points. The desulfurizing agent is then added into the desulfurization tower through a spray chute. This device ensures that the desulfurizing agent is evenly distributed within the cross-section of the desulfurization tower, allowing for sufficient contact between the desulfurizing agent and the sulfur-containing flue gas. Using this multi-point feeding device, a fluidized bed is not required within the desulfurization tower. The added desulfurizing agent reacts along with the flue gas, reducing system resistance (typically, the resistance of a desulfurization tower is approximately 400-1000 Pa), saving operating energy, and simultaneously improving desulfurization efficiency.

[0004] This utility model provides a multi-point feeding device for a suspension separation type desulfurization tower ring tower, including: a ring tower chute;

[0005] The annular chute is circular; the annular chute is fitted onto the outer wall of the desulfurization tower;

[0006] The annular tower chute is provided with multiple feed inlets; the annular tower chute is provided with multiple discharge outlets on its side; a spray chute is provided at the lower end of the discharge outlet; the discharge end of the spray chute extends into the desulfurization tower.

[0007] Furthermore, the annular chute is composed of multiple interconnected arc-shaped chute segments.

[0008] Furthermore, the arc-shaped chute includes: a material chamber, a venting plate, and an air chamber; the venting plate is disposed between the material chamber and the air chamber; the material chamber is located at the upper end of the air chamber.

[0009] Furthermore, the material chambers of the multi-segment arc-shaped chute are interconnected; however, the air chambers of the multi-segment arc-shaped chute are not interconnected.

[0010] Furthermore, a first air supply port is provided at the lower end of the air chamber.

[0011] Furthermore, an adjustable baffle is movably installed between the annular tower chute and the discharge port.

[0012] Furthermore, a quick-opening hole is provided on the side of the discharge port.

[0013] Furthermore, the spray chute is inclined; the angle between the spray chute and the horizontal position of the desulfurization tower is in the range of 0-20 degrees.

[0014] Furthermore, the feed inlet can be one or more.

[0015] Furthermore, the number of discharge ports is 2-32.

[0016] Compared with existing technologies, the multi-point feeding device for a suspended separation desulfurization tower provided by this utility model feeds the desulfurizing agent into the ring tower chute through multiple inlets, evenly distributes the desulfurizing agent to multiple outlets, and then adds the desulfurizing agent into the desulfurization tower through multiple spray chutes connected to the multiple outlets. This device ensures that the desulfurizing agent is evenly distributed within the cross-section of the desulfurization tower, allowing for full contact between the desulfurizing agent and the sulfur-containing flue gas, and reducing the risk of material accumulation and blockage. Using this multi-point feeding device, a fluidized bed is not required within the desulfurization tower. The added desulfurizing agent reacts along with the flue gas, reducing system resistance (generally, the resistance of a desulfurization tower is about 400-1000 Pa), saving operating energy consumption, and improving desulfurization efficiency. Attached Figure Description

[0017] Figure 1 This is a top view of the multi-point feeding device of the ring tower of the suspension separation desulfurization tower;

[0018] Figure 2 A cross-sectional view (AA) of the multi-point feeding device for the ring tower of a suspension separation desulfurization tower;

[0019] Figure 3 for Figure 2 Enlarged view of the middle section (I);

[0020] Attached reference numerals: 1. Ring chute; 2. Discharge port; 3. First air supply port; 4. Quick-opening hole; 5. Spray chute; 6. Feed inlet; 7. Adjusting baffle; 8. Material chamber; 9. Air permeable plate; 10. Air chamber; 11. Diameter of the center circle of the ring chute; 12. Diameter of the desulfurization tower; 13. Second air supply port. Detailed Implementation

[0021] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining this utility model and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this utility model are shown in the accompanying drawings, not all of them.

[0022] like Figure 1-3 As shown in the figure, the present invention provides a suspension separation type desulfurization tower annular multi-point feeding device, including: annular tower chute 1; the annular tower chute 1 is sleeved on the outer wall of the desulfurization tower; the annular tower chute 1 is located in the middle and lower part of the desulfurization tower; the difference between the diameter 11 of the center circle of the annular tower chute and the diameter of the desulfurization tower is 5cm-50cm.

[0023] The annular chute 1 is circular; it is composed of multiple interconnected arc-shaped chute segments, each segment being bolted together. Each arc-shaped chute includes a material chamber 8, a permeable plate 9, and an air chamber 10; the permeable plate 9 is positioned between the material chamber 8 and the air chamber 10; the material chamber 8 is located above the air chamber 10. The material chambers 8 of the multiple arc-shaped chute segments are interconnected; the air chambers 10 of the multiple arc-shaped chute segments are independent and not interconnected. A first air supply port 3 is provided at the lower end of each air chamber 10.

[0024] The annular chute 1 is provided with one or more inlets 6, through which desulfurizing agent from the pneumatic conveying system enters the annular chute 1. The annular chute 1 has 2-32 outlets 2 on its side; the specific number of outlets 2 is determined according to the diameter 12 of the desulfurization tower. A spray chute 5 is provided at the lower end of each outlet 2; the outlet end of the spray chute 5 passes through the outer wall of the desulfurization tower and extends into the tower, used to spray the desulfurizing agent into the tower. The spray chute 5 is inclined; the angle between the spray chute 5 and the horizontal position of the desulfurization tower ranges from 0 to 20 degrees. A second air supply port 13 is provided at the lower end of the spray chute 5.

[0025] Adjustable baffles 7 are vertically movable between the annular chute 1 and each discharge port 2 to adjust the discharge rate of each discharge port 2. Multiple studs are circumferentially arranged on the annular chute 1 at the connection point with the discharge port 2. The adjustable baffles 7 can be fitted onto multiple studs. When adjustment of the adjustable baffles 7 is required, the quick-release hole 4 is opened, the wing nut is unscrewed, the adjustable baffle 7 is removed from the stud, and then fitted onto a stud in the appropriate position. After the position is adjusted, it is fixed in place with the wing nut. A quick-release hole 4 is provided on the side of the discharge port 2 for observing the discharge status of the discharge port 2 and adjusting the position of the adjustable baffles 7.

[0026] The working process of this novel multi-point feeding device for a suspension separation desulfurization tower is as follows:

[0027] The desulfurizing agent from the pneumatic conveying system enters the annular tower chute 1 through the feed inlet 6 and accumulates in the material chamber 8 of the annular tower chute 1, i.e., on the permeable plate 9. Under the pressure of the fluidizing air entering through the first air supply port 3, the desulfurizing agent becomes fluidized on the permeable plate 9 and enters the discharge port 2 through the various regulating baffles 7 on the annular tower chute 1, thus entering the spray chute 5. Under the pressure of the fluidizing air entering through the second air supply port 13 on the spray chute 5 and the negative pressure of the desulfurization tower, the desulfurizing agent is sprayed into the interior of the desulfurization tower at multiple points and evenly distributed within the cross-section of the desulfurization tower. By observing and adjusting the position of the regulating baffles 7 at each discharge port 2 through the quick-opening hole 4, the discharge rate at each discharge port can be made uniform.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications to the technical solutions described in the foregoing embodiments, or equivalent substitutions for some or all of the technical features, do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A multi-point feeding device for a suspension separation type desulfurization tower, characterized in that, include: Ring tower chute (1); The annular chute (1) is circular; the annular chute (1) is fitted onto the outer wall of the desulfurization tower; The annular chute (1) is provided with multiple feed inlets (6); the annular chute (1) is provided with multiple discharge outlets (2) on its side; the discharge outlets (2) are provided with a spray chute (5) at their lower ends; the discharge end of the spray chute (5) extends into the desulfurization tower.

2. The multi-point feeding device for the suspension separation type desulfurization tower ring as described in claim 1, characterized in that, The ring tower chute (1) is composed of multiple connected arc-shaped chute segments.

3. The multi-point feeding device for the suspension separation type desulfurization tower ring as described in claim 2, characterized in that, The arc-shaped chute includes: a material chamber (8), a vent plate (9), and an air chamber (10); the vent plate (9) is disposed between the material chamber (8) and the air chamber (10); the material chamber (8) is located at the upper end of the air chamber (10).

4. The multi-point feeding device for the suspension separation type desulfurization tower ring tower according to claim 3, characterized in that, The material chambers (8) of the multi-segment arc chute are interconnected; the air chambers (10) of the multi-segment arc chute are not interconnected.

5. The multi-point feeding device for the suspension separation type desulfurization tower ring as described in claim 4, characterized in that, The lower end of the air chamber (10) is provided with a first air supply port (3).

6. The multi-point feeding device for the suspension separation type desulfurization tower ring as described in claim 1, characterized in that, An adjusting baffle (7) is movably installed between the annular tower chute (1) and the discharge port (2).

7. The multi-point feeding device for the suspension separation type desulfurization tower ring tower according to claim 1, characterized in that, The discharge port (2) is provided with a quick-opening hole (4) on its side.

8. The multi-point feeding device for the suspension separation type desulfurization tower ring as described in claim 1, characterized in that, The spray chute (5) is inclined; the angle between the spray chute (5) and the horizontal position of the desulfurization tower is 0-20 degrees.

9. The multi-point feeding device for the suspension separation type desulfurization tower ring as described in claim 1, characterized in that, The feed inlet (6) may be one or more.

10. The multi-point feeding device for the suspension separation type desulfurization tower ring as described in claim 1, characterized in that, The number of discharge ports (2) is 2-32.

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