Cooling device for protecting coke oven flue gas desulfurization and denitrification

Abstract

The utility model provides a cooling device for protecting coke oven flue gas desulfurization and denitrification, which comprises a cooling box, a plurality of isolation cavities and communication cavities are arranged in the cooling box, the isolation cavities and the communication cavities are separated by isolation plates, a plurality of isolation pipes are arranged in the isolation cavities, the isolation pipes penetrate through the isolation plates and are communicated with the communication cavities, and the communication cavities are communicated with the isolation plates. A smoke inlet pipe opening and a smoke outlet pipe opening are formed in the side, away from the isolation cavity, of the cooling box. The end, away from the communicating cavity, of the isolation pipe is connected to the smoke inlet pipe opening and the smoke outlet pipe opening. The guide sliding plates are arranged at the two ends of the exhaust fan and can be driven by the gears in a linkage mode, the moving frequencies of the two ends are the same, the hydraulic rods can control the two ends to move at the same frequency at the same time, it is guaranteed that the exhaust fan is synchronously moved in a large range, and the heat exchange efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of flue gas treatment, specifically a cooling device for protecting the desulfurization and denitrification of coke oven flue gas. Background Technology

[0002] Before the treatment of flue gas dust removal, desulfurization and denitrification, it is necessary to cool the flue gas according to the working conditions. High temperature flue gas enters the cooler through the hot flue gas inlet and is cooled in the cooler. Usually, the high temperature flue gas exchanges heat with low temperature water or air to achieve the purpose of cooling.

[0003] Cooling can be achieved through contact between water or air. This contact can be direct, where the cooling medium directly contacts the flue gas for heat exchange, or indirect, where the flue gas and cooling medium are separated and heat exchange occurs through specific heat transfer surfaces. In direct contact, the cooling medium directly contacts the flue gas, effectively exchanging heat through the heat transfer surface. As the cooling medium absorbs heat, its temperature gradually increases, and the flue gas temperature gradually decreases. This method achieves efficient heat exchange, but it requires ensuring the compatibility between the cooling medium and the flue gas. For flue gas desulfurization and denitrification, an indirect approach is necessary to avoid direct contact between the cooling medium and the flue gas, reducing the potential generation of harmful substances. Plate or other types of heat exchange elements are typically used to maximize the contact area between the flue gas and the cooling medium. However, indirect contact is less effective in heat exchange, as the contact range with the cooling medium is limited, requiring prolonged indirect contact to achieve the desired cooling effect.

[0004] In summary, this utility model provides a cooling device for protecting the desulfurization and denitrification of coke oven flue gas, thereby solving the above-mentioned problems. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a cooling device for protecting the desulfurization and denitrification of coke oven flue gas, thereby solving the shortcomings in heat exchange in the existing technology.

[0006] A cooling device for protecting coke oven flue gas during desulfurization and denitrification includes a cooling box. The cooling box contains multiple isolation chambers and a connecting chamber, separated by an isolation plate. Multiple isolation pipes are installed within each isolation chamber, passing through the isolation plate and communicating with the connecting chamber. An inlet and an outlet flue are installed on the side of the cooling box away from the isolation chambers. The ends of the isolation pipes away from the connecting chambers are connected to the inlet and outlet flue, respectively. Ventilation slots are provided on both sides of the cooling box, communicating with the isolation chambers. Multiple ventilation plates are installed on one ventilation slot, and an exhaust fan is installed on the surface of the other ventilation slot. Guide plates are fixedly connected to the upper and lower ends of the exhaust fan via a fan frame. The guide plates are slidably connected to the side wall of the cooling box via positioning rails. One end of the guide plates is fixedly connected via a linkage push plate. A hydraulic rod is installed on the side wall of the cooling box, with its piston rod fixedly connected to the middle of the linkage push plate.

[0007] Furthermore, the positioning slide rail is installed on the outer wall of the cooling box, and the upper and lower ends of the guide slide plate are respectively provided with slide rail grooves, which are slidably connected with the positioning slide rail.

[0008] Furthermore, one end of the guide slide plate passes through the positioning slide rail and is connected to the linkage push plate. The surface of the guide slide plate is provided with gear grooves, and gears are respectively provided on the surface of the guide slide plate. The two gears are fixedly connected by a gear shaft.

[0009] Furthermore, a mounting base is movably sleeved on the surface of the gear shaft, the mounting base is mounted on the surface of the cooling box, and the gear meshes with the gear groove.

[0010] Furthermore, the exhaust fan is installed on the surface of the ventilation slot and has a gap between it and the side wall adjacent to the cooling box.

[0011] Furthermore, the canyon ventilation plate is provided in multiple locations, and the multiple canyon ventilation plates are installed at equal intervals on the inner walls of the upper and lower ends of the ventilation slot.

[0012] Furthermore, the two ventilation slots are arranged opposite each other and are located on the two side walls perpendicular to the smoke outlet.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This utility model provides guide slides at both ends of the exhaust fan. The guide slides can be driven by gear linkage, and the movement frequency of both ends is the same. The hydraulic rod can simultaneously control the movement of both ends at the same frequency, ensuring the synchronous movement of the exhaust fan over a large range and improving heat exchange efficiency.

[0015] 2. This utility model, through the design of the canyon ventilation plate and the exhaust fan, ensures that the cooling box operates stably while allowing the heat exchange process to be adjusted according to actual needs. Natural ventilation is achieved by using the canyon ventilation plate, or the exhaust fan is added to accelerate the air flow, thereby realizing the heat transfer between the high-temperature flue gas and the cooling medium, thus reducing the temperature of the flue gas. This not only improves energy utilization efficiency but also helps to reduce environmental pollution. Attached Figure Description

[0016] Figure 1 This utility model is a three-dimensional Figure 1 ;

[0017] Figure 2 This utility model is a three-dimensional Figure 2 ;

[0018] Figure 3 This is a three-dimensional view of the exhaust fan of this utility model;

[0019] Figure 4 This is a three-dimensional view of the interior of the cooling box of this utility model.

[0020] In the picture:

[0021] 1. Cooling box; 2. Exhaust fan; 3. Gear shaft; 4. Linkage push plate; 5. Guide slide plate; 6. Positioning slide rail; 7. Fan frame; 8. Hydraulic rod; 9. Mounting base; 10. Ventilation slot; 11. Gear slot; 12. Gear; 13. Ventilation plate at the canyon; 14. Smoke inlet; 15. Smoke outlet; 16. Isolation pipe; 17. Connecting cavity; 18. Isolation plate. Detailed Implementation

[0022] 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.

[0023] like Figure 1 - Figure 4As shown, this utility model provides a cooling device for protecting coke oven flue gas during desulfurization and denitrification. It includes a cooling box 1, which contains multiple isolation chambers and a connecting chamber 17. The isolation chambers and connecting chambers 17 are separated by an isolation plate 18. Multiple isolation pipes 16 are installed within the isolation chambers, passing through the isolation plate 18 and communicating with the connecting chambers 17. An inlet pipe 14 and an outlet pipe 15 are installed on the side of the cooling box 1 away from the isolation chambers. The ends of the isolation pipes 16 away from the connecting chambers 17 are respectively connected to the inlet pipe 14 and the outlet pipe 15 for cooling. Ventilation slots 10 are provided on both sides of the box 1. The ventilation slots 10 are connected to the isolation chamber. Multiple ventilation plates 13 are installed on one ventilation slot 10. An exhaust fan 2 is provided on the surface of the ventilation slot 10 on the other side. The upper and lower ends of the exhaust fan 2 are fixedly connected to guide slide plates 5 through fan frame 7. The guide slide plates 5 are slidably connected to the side wall of the cooling box 1 through positioning slide rail 6. One end of the guide slide plate 5 is fixedly connected through linkage push plate 4. A hydraulic rod 8 is installed on the side wall of the cooling box 1. The piston rod of the hydraulic rod 8 is fixedly connected to the middle of the linkage push plate 4.

[0024] As one embodiment of this utility model, the positioning slide rail 6 is installed on the outer wall of the cooling box 1, and the upper and lower ends of the guide slide plate 5 are respectively provided with slide rail grooves and are slidably connected with the positioning slide rail 6.

[0025] As one embodiment of this utility model, one end of the guide slide plate 5 passes through the positioning slide rail 6 and is connected to the linkage push plate 4. The surface of the guide slide plate 5 is provided with a gear groove 11, and gears 12 are respectively provided on the surface of the guide slide plate 5. The two gears 12 are fixedly connected by a gear shaft 3.

[0026] In one embodiment of this utility model, a mounting seat 9 is movably sleeved on the surface of the gear shaft 3, and the mounting seat 9 is installed on the surface of the cooling box 1, with the gear 12 meshing with the gear groove 11.

[0027] As one embodiment of this utility model, the exhaust fan 2 is installed on the surface of the ventilation slot 10, and a gap is provided between it and the side wall adjacent to the cooling box 1.

[0028] As one embodiment of this utility model, the canyon ventilation plate 13 is arranged in multiple canyons, and the multiple canyon ventilation plates 13 are equidistantly installed on the inner walls of the upper and lower ends of the ventilation slot 10.

[0029] In one embodiment of this utility model, two ventilation slots 10 are arranged opposite to each other and are located on the two side walls perpendicular to the smoke outlet 15.

[0030] Specific working principle:

[0031] The flue gas enters through the inlet pipe 14, passes through the isolation pipe 16 connected to the inlet pipe 14, enters the connecting cavity 17, passes through the isolation pipe 16 connected to the outlet pipe 15, and is discharged from the outlet pipe 15.

[0032] After the low-temperature flue gas enters the cooling box 1, the air circulation in the cooling box 1 is increased by the ventilation plate 13. The air increases the flow rate by passing through the gap between the ventilation plates 13. At this time, the exhaust fan 2 moves to one side of the ventilation slot 10 and does not cover the surface of the ventilation slot 10, so that the heat exchange of the internal isolation tube 16 can be realized.

[0033] If the temperature is too high, the hydraulic rod 8 is activated. The hydraulic rod 8 pulls the linkage push plate 4 closer to the cooling box 1. When the guide slide plate 5 slides, the gear 12 drives the guide slide plates 5 at both ends to move synchronously. The two ends of the exhaust fan 2 move at the same frequency, ensuring that the exhaust fan 2 is more stable when moving. The guide slide plate 5 slides in the positioning slide rail 6, and the exhaust fan 2 moves to the surface of the ventilation slot 10, increasing the use of the fan and accelerating the air flow. This ensures that the cooling box can adjust the heat exchange process according to actual needs while operating stably.

[0034] The embodiments of this utility model are given for the purpose of illustration and description. Although embodiments of this utility model have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this utility model. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this utility model.

Claims

1. A cooling device for protecting coke oven flue gas during desulfurization and denitrification, comprising a cooling box (1), wherein the cooling box (1) is provided with a plurality of isolation chambers and a connecting chamber (17), the isolation chambers and the connecting chambers (17) are separated by an isolation plate (18), a plurality of isolation pipes (16) are provided in the isolation chambers, the isolation pipes (16) pass through the isolation plate (18) and are connected to the connecting chambers (17), an inlet pipe (14) and an outlet pipe (15) are installed on the side of the cooling box (1) away from the isolation chambers, and the end of the isolation pipe (16) away from the connecting chamber (17) is respectively connected to the inlet pipe (14) and the outlet pipe (15), characterized in that, Ventilation slots (10) are provided on both sides of the cooling box (1). The ventilation slots (10) are connected to the isolation chamber. Multiple ventilation plates (13) are installed on one side of the ventilation slot (10). An exhaust fan (2) is provided on the surface of the ventilation slot (10) on the other side. The upper and lower ends of the exhaust fan (2) are fixedly connected to guide slide plates (5) through fan frames (7). The guide slide plates (5) are slidably connected to the side wall of the cooling box (1) through positioning slide rails (6). One end of the guide slide plates (5) is fixedly connected through a linkage push plate (4). A hydraulic rod (8) is installed on the side wall of the cooling box (1). The piston rod of the hydraulic rod (8) is fixedly connected to the middle of the linkage push plate (4).

2. The cooling device for protecting coke oven flue gas desulfurization and denitrification as described in claim 1, characterized in that, The positioning slide rail (6) is installed on the outer wall of the cooling box (1), and the upper and lower ends of the guide slide plate (5) are respectively provided with slide rail grooves and are slidably connected with the positioning slide rail (6).

3. The cooling device for protecting coke oven flue gas desulfurization and denitrification as described in claim 1, characterized in that, One end of the guide slide plate (5) passes through the positioning slide rail (6) and is connected to the linkage push plate (4). The surface of the guide slide plate (5) is provided with a gear groove (11), and the surface of the guide slide plate (5) is provided with gears (12). The two gears (12) are fixedly connected by a gear shaft (3).

4. The cooling device for protecting coke oven flue gas desulfurization and denitrification as described in claim 3, characterized in that, The surface of the gear shaft (3) is movably fitted with a mounting seat (9), which is mounted on the surface of the cooling box (1), and the gear (12) meshes with the gear groove (11).

5. The cooling device for protecting coke oven flue gas desulfurization and denitrification as described in claim 1, characterized in that, The exhaust fan (2) is installed on the surface of the ventilation slot (10) and has a gap between it and the side wall adjacent to the cooling box (1).

6. The cooling device for protecting coke oven flue gas desulfurization and denitrification as described in claim 1, characterized in that, The canyon ventilation plate (13) is set in multiple slots, and the multiple slot ventilation plates (13) are installed at equal intervals on the inner walls of the upper and lower ends of the ventilation slot (10).

7. The cooling device for protecting coke oven flue gas desulfurization and denitrification as described in claim 1, characterized in that, The two ventilation slots (10) are arranged opposite each other and are located on the two side walls perpendicular to the smoke outlet (15).

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