Coal gas recycling system for steelmaking converter

Abstract

The invention discloses a coal gas recycling system for a steelmaking converter, and relates to the technical field of steelmaking converters. A brake seat is arranged at the other end of an arm force supporting rod, a fixing shaft is arranged on the brake seat, a rotating shaft sleeve is arranged on the outer side of the fixing shaft, a liquid collecting frame below the rotating shaft sleeve swings along the self-gravity of the fixing shaft, and a transmission shaft is arranged on the inner side of the fixing shaft; and the transmission shaft is provided with an overturning closing cover which is overlapped with the liquid collecting frame in an overturning manner, so that the overturning closing cover circularly overturns to spray out the solution in the liquid collecting frame. According to the design, an alkaline neutralization solution is poured into the washing tank in advance, the brake shaft is used as a driving source to drive the spraying assembly to rotate in the circumferential direction, when the spraying assembly rotatably sinks into the alkaline neutralization solution, the solution is self-loaded, and when the spraying assembly rotatably moves out of the solution, the solution is self-sprayed and subjected to a neutralization reaction with converter gas; the device has a good self-circulation spraying and neutralizing effect, spraying is more comprehensive, and meanwhile the neutralization reaction of converter gas is more comprehensive.

Claims

1. A system for recovering and utilizing steelmaking converter gas, characterized in that: include: Dust filter box (1); A water washing box (2), wherein the water washing box (2) is arranged on one side of the dust filter box (1); A brake shaft (9), wherein the brake shaft (9) passes through the dust filter box (1) and extends to the interior of the water washing box (2); A central shaft sleeve (13) is provided in two groups and is axially arranged inside the washing box (2) along the brake shaft (9). One side of the central shaft sleeve (13) is provided with at least one group of arm support rods (141). The other end of the arm support rod (141) is provided with a brake seat (142). A fixed shaft (143) is provided on the brake seat (142). A rotating shaft sleeve (144) is provided outside the fixed shaft (143) so that a liquid collecting frame (145) below the rotating shaft sleeve (144) swings along the fixed shaft (143) due to gravity. A transmission shaft (146) is provided inside the fixed shaft (143). A flip cover (147) that flips and overlaps with the liquid collecting frame (145) is provided on the transmission shaft (146) so that the flip cover (147) is cyclically flipped to spray out the solution in the liquid collecting frame (145).

2. A steelmaking converter gas recovery and utilization system according to claim 1, characterized in that: The bottom of the liquid collecting frame (145) is provided with a confluence slot (148), and the bottom of the confluence slot (148) is provided with spray holes (149) in an array.

3. The system for recovering and utilizing steelmaking converter gas according to claim 1, characterized in that: A transmission gear (1410) is provided at one end of the transmission shaft (146), a transmission guide rail (20) coaxial with the brake shaft (9) is provided at the upper half of the washing box (2), an unlocking rack (21) meshingly connected to the transmission gear (1410) is provided at one end of the transmission guide rail (20), and a locking rack (22) meshingly connected to the transmission gear (1410) is provided at the other end of the transmission guide rail (20).

4. The system for recovering and utilizing steelmaking converter gas according to claim 1, characterized in that: The upper part of the water washing box (2) is connected to a liquid inlet valve (5), and the lower part of the water washing box (2) is connected to a liquid discharge valve (6). Alkaline solution is poured into the lower half of the water washing box (2) through the liquid inlet valve (5), so that the filling height of the alkaline solution is not higher than the vent of the water washing box (2).

5. The system for recovering and utilizing steelmaking converter gas according to claim 1, characterized in that: A filter plate (12) is provided inside the dust filter box (1), and a cleaning brush plate (11) opposite to the filter plate (12) is provided along the axial direction of the brake shaft (9), and a soft brush is provided on the brushing surface of the cleaning brush plate (11).

6. The steelmaking converter gas recovery and utilization system according to claim 5, characterized in that: A dust collecting pipe (4) is provided at the lower side of the dust filter box (1) near the filter plate (12), and at least two groups of slow-moving guide plates (19) are provided in the dust collecting pipe (4), and the upper and lower adjacent slow-moving guide plates (19) are staggered and opposed.

7. The steelmaking converter gas recovery and utilization system according to claim 5, characterized in that: A scraping shaft (15) facing the brake shaft (9) is arranged inside the dust collecting pipe (4), and a cleaning scraper (18) facing the material slowing guide plate (19) is arranged along the axial direction of the scraping shaft (15).

8. The system for recovering and utilizing steelmaking converter gas according to claim 7, characterized in that: A bevel gear A (16) is provided at the top end of the scraping shaft (15); a bevel gear B (17) meshingly connected with the bevel gear A (16) is provided along the axial direction of the brake shaft (9); the outer sides of the bevel gear A (16) and the bevel gear B (17) are covered with a brake housing (10); and the brake housing (10) is internally supported and fixed on the dust filter box (1).

9. A system for recovering and utilizing steelmaking converter gas according to claims 1-8, characterized in that: An air inlet pipe (3) is provided on the upper side of the dust filter box (1) away from the filter plate (12), and an exhaust pipe (7) is provided on one end of the water washing box (2) away from the dust filter box (1).

10. The steelmaking converter gas recovery and utilization system according to claim 1, characterized in that: The dust filter box (1) is provided with a brake motor (8) for driving a brake shaft (9).

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