CN-224215864-U - Flue gas purification mechanism and steelmaking furnace

CN224215864UCN 224215864 UCN224215864 UCN 224215864UCN-224215864-U

Abstract

The utility model relates to the technical field of flue gas purification, in particular to a flue gas purification mechanism and a steelmaking furnace, which comprises a flue gas purification assembly, wherein the flue gas purification assembly is sequentially provided with a first purification box, a second purification box and a drying and filtering box from left to right, the left end surfaces of the first purification box and the second purification box are respectively provided with a guide pipe, the right ends of the guide pipes are respectively provided with a one-way valve close to the bottom, the flue gas purification mechanism and the steelmaking furnace are used for sucking and filtering flue gas pumped by an exhaust fan through cuprous chloride solution in the first purification box, spraying water solution through a spray pipe in the second purification box and matching with two filter cottons, absorbing dust particles and metal particles in the flue gas, cooling the flue gas through the sprayed water solution, guiding the flue gas into the drying and filtering box through an air inlet pipe, discharging polluted surrounding environment through the two drying cottons, and reducing atomized water body to be discharged and collected through an exhaust pipe.

Inventors

WANG LICHUN
CHEN HAO
WANG SHUAISHUAI
WANG JIADUAN

Assignees

四川鑫泉钢铁有限公司

Dates

Publication Date: 20260508
Application Date: 20250612

Claims (8)

1. The flue gas purifying mechanism comprises a flue gas purifying assembly and is characterized in that the flue gas purifying assembly is sequentially provided with a first purifying box, a second purifying box and a drying and filtering box from left to right, guide pipes are arranged on the left end faces of the first purifying box and the second purifying box, and check valves are arranged at the positions, close to the bottoms, of the right ends of the guide pipes; The top of the first purifying box is provided with a first sealing cover, the front end surface of the first purifying box is provided with a first observation window, cuprous chloride solution is filled in the first purifying box, and an exhaust fan is arranged at the middle position of a guide pipe close to the left side of the first purifying box; The top of the second purifying box is provided with a second sealing cover, the front end face of the second purifying box is provided with a second observation window, a conveying pipe is arranged in the second purifying box near the top, the tail end of the conveying pipe extends into the second purifying box, a spray pipe is arranged at the tail end of the conveying pipe, a plurality of spray heads are arranged on the spray pipe, positioning frames are arranged on the upper side and the lower side of the spray pipe in the second purifying box, a limiting plate is arranged in the middle of the positioning frames, and filter cotton is arranged on the limiting plate; The drying and filtering box is installed above the backup pad on the second purifying box right-hand member face, the inside symmetry of drying and filtering box is equipped with dry cotton, drying and filtering box top is equipped with the top cap, drying and filtering box left end face passes sealed lid of second and the inside intercommunication of second purifying box through the intake pipe, be close to top department and be equipped with the blast pipe on the drying and filtering box right-hand member face.
2. The flue gas purifying mechanism of claim 1, wherein the first observation window is made of toughened glass, the peripheral outer wall of the first observation window is fixedly bonded with the side wall of the first purifying box, a first discharge pipe is arranged on the front end face of the first purifying box near the bottom, a liquid inlet pipe is arranged on the front end face of the first purifying box near the top, and sealing plugs are arranged at the ends of the first discharge pipe and the liquid inlet pipe.
3. The flue gas purifying mechanism according to claim 2, wherein a rubber pad is arranged on the lower surface of the first sealing cover, the first sealing cover is fixedly connected with the top of the first purifying box through screws, the right end of one guide pipe is fixedly welded with the first purifying box, and the exhaust fan is fixedly connected with the guide pipe through screws.
4. The flue gas purifying mechanism according to claim 1, wherein the second observation window is made of toughened glass, the periphery of the second observation window is fixedly bonded with the side wall of the second purifying box, a second discharge pipe is arranged on the front end face of the second purifying box near the bottom, the right end of the other guide pipe is fixedly welded with the second purifying box, and the left end of the guide pipe penetrates through the first sealing cover to be communicated with the inside of the first purifying box.
5. The flue gas purifying mechanism according to claim 1, wherein the conveying pipe is fixedly bonded with the second purifying box, the spraying pipe is fixedly welded with the conveying pipe, the spraying heads are distributed in an annular equidistant manner, and the spraying heads and the spraying pipe are of an integrated structure.
6. The flue gas purifying mechanism according to claim 1, wherein the width of the outer wall of the positioning frame is matched with the width of the inner wall of the second purifying box, the outer wall of the limiting plate is fixedly connected with the inner wall of the positioning frame through screws, and the width of the outer wall of the filter cotton is matched with the outer wall of the limiting plate.
7. The flue gas purifying mechanism according to claim 1, wherein the left end of the supporting plate is welded and fixed with the second purifying box, the bottom of the drying and filtering box is fixedly connected with the top of the supporting plate through screws, the widths of the two drying cottons are matched with those of the inner wall of the drying and filtering box, the right end of the air inlet pipe is welded and fixed with the drying and filtering box, the air inlet pipe penetrates through the second sealing cover, and the air outlet pipe is bonded and fixed with the drying and filtering box.
8. A steelmaking furnace comprises a steelmaking furnace body and a flue gas purifying mechanism connected with the steelmaking furnace body, and is characterized in that the flue gas purifying mechanism adopts the flue gas purifying assembly as set forth in any one of claims 1 to 7, and the left end of a guide pipe with an exhaust fan is inserted into an exhaust port of the steelmaking furnace body.

Description

Flue gas purification mechanism and steelmaking furnace Technical Field The utility model relates to the technical field of flue gas purification, in particular to a flue gas purification mechanism and a steelmaking furnace. Background The steelmaking furnace generates a large amount of flue gas containing high-concentration pollutants in the smelting process, and the flue gas needs to be purified so as to reduce the influence on the surrounding environment; The utility model of CN213253780U discloses a harmless treatment device for steelmaking converter flue gas, which comprises a steelmaking furnace, a first smoke pipe, a high-temperature component, a first fixing frame, a cooling dust removal component, a high-temperature tank, a cooling dust removal tank, a water storage tank, a second smoke pipe, a second fixing frame, a third fixing frame and a cap, wherein the high-temperature component consists of a heating rod, an inner tank and a smoke pipe with an oxygen port being Wen Guandi high, the cooling dust removal component consists of a cooling dust removal tank, the water storage tank, a second smoke pipe, a shower nozzle, a water pipe, a filter screen, a slag discharge port, a pipeline, a water pump, a movable plate, an exhaust pipe and an exhaust fan, the top of the steelmaking furnace is fixedly connected with one end of the first smoke pipe, the other end of the first smoke pipe is communicated with the center of the top of the high-temperature tank, the side surface of the high-temperature tank is communicated with one end of the second smoke pipe, and the other end of the second smoke pipe is communicated with the side surface of the cooling dust removal component; The technical scheme is convenient for removing harmful gas, is beneficial to purifying smoke dust in the gas and is beneficial to protecting the environment, but insufficient reaction is caused by insufficient combustion of carbon monoxide by the high-temperature assembly, carbon monoxide in the smoke cannot be removed, dust particles in the smoke are inconvenient for full filtration and interception, and the influence of emission on the surrounding environment is reduced. Disclosure of Invention The utility model aims to provide a flue gas purifying mechanism and a steelmaking furnace, which are used for solving the problems in the background technology. In order to achieve the above purpose, the present utility model provides the following technical solutions: The flue gas purifying mechanism comprises a flue gas purifying assembly, wherein a first purifying box, a second purifying box and a drying and filtering box are sequentially arranged on the flue gas purifying assembly from left to right, guide pipes are respectively arranged on the left end faces of the first purifying box and the second purifying box, and check valves are respectively arranged at the positions, close to the bottoms, of the right ends of the guide pipes; The top of the first purifying box is provided with a first sealing cover, the front end surface of the first purifying box is provided with a first observation window, cuprous chloride solution is filled in the first purifying box, and an exhaust fan is arranged at the middle position of a guide pipe close to the left side of the first purifying box; The top of the second purifying box is provided with a second sealing cover, the front end face of the second purifying box is provided with a second observation window, a conveying pipe is arranged in the second purifying box near the top, the tail end of the conveying pipe extends into the second purifying box, a spray pipe is arranged at the tail end of the conveying pipe, a plurality of spray heads are arranged on the spray pipe, positioning frames are arranged on the upper side and the lower side of the spray pipe in the second purifying box, a limiting plate is arranged in the middle of the positioning frames, and filter cotton is arranged on the limiting plate; The drying and filtering box is installed above the backup pad on the second purifying box right-hand member face, the inside symmetry of drying and filtering box is equipped with dry cotton, drying and filtering box top is equipped with the top cap, drying and filtering box left end face passes sealed lid of second and the inside intercommunication of second purifying box through the intake pipe, be close to top department and be equipped with the blast pipe on the drying and filtering box right-hand member face. Further, the first observation window adopts toughened glass to make, outer wall and first purifying box lateral wall bond fixedly around the first observation window, be close to bottom department on the terminal surface before the first purifying box and be equipped with first exhaust pipe, be close to top department on the terminal surface before the first purifying box and be equipped with the feed liquor pipe, first exhaust pipe, feed liquor pipe tip all are equipped with the sealin