Ceiling type flue gas gathering device of steel slag hot splashing pool

Abstract

The utility model discloses a top suction type smoke gathering device of a steel slag hot splashing pool, and particularly relates to the technical field of steel slag processing devices, the top suction type smoke gathering device of the steel slag hot splashing pool comprises a supporting steel beam, a smoke gathering cover body, a rotating support, a dust collecting device and a steel support, the supporting steel beam is in bolted connection with the hot splashing pool, and the smoke gathering cover is buckled on the steel beam when closed. Smoke is introduced into the dust collecting box through the gas collecting hole, the dust collecting box is connected with the collecting cover through the detachable flange, the smoke collecting cover is opened by 80 degrees during deslagging, the utilization rate of a slag pool is increased, and damage to the cover body is reduced; the cover body is closed by 0 degree after the slag is fully poured, smoke and water vapor generated by spraying and cooling are collected by a dust collection opening in the dust collection box due to the upward drifting characteristic, the cover body is opened for slagging off after the steel slag on the surface layer is cooled, and the operation is cyclically performed until the steel slag is completely cooled and then is carried away. Compared with a rail type movable cover vehicle, the device has the advantages that the tipping angle is 0-80 degrees, the slag stacking amount is increased, the shielding of the trapping cover is small, and the service life is long; ceiling type collection is combined with the check curtain and the dust collection opening, so that the smoke collection effect is good.

Description

Technical Field

[0001] This utility model relates to the technical field of steel slag treatment devices, specifically a top-suction flue gas capture device for a steel slag hot pouring pool. Background Technology

[0002] Currently, the mainstream hot water pool flue gas capture devices are mostly track-mounted mobile dust collectors (hereinafter referred to as mobile hoods). The cooling water pipes of the track-mounted mobile hoods are mostly arranged on the top or sides of the mobile dust collector, which has the advantages of uniform spraying and water spraying and that the slag stacking height is not limited by the slag pool wall.

[0003] However, in actual use, the steel slag in the slag pot needs to be swung and rocked to smoothly pour out the solidified steel slag. The mobile cover car occupies the space on both sides and above the slag pool, which restricts the swing direction and amplitude of the slag pot, making it very easy to cause the cover to hit the slag, which greatly reduces the service life of the mobile cover car. The mobile cover car above the slag pool also restricts the slag pouring position of the slag pot, causing most of the steel slag to be poured outside the slag pool, reducing the usable space of the slag pool and reducing the slag capacity. The environment in the steel frame hot pouring treatment workshop is harsh, with a high dust content in the air, and the moving track is very easy to accumulate dust, resulting in high cleaning and maintenance costs.

[0004] Tilting-type flue gas capture devices are mostly used in slag pit quenching processes, which are convenient for slag dumping and scraping, and have a high utilization rate of the slag pit. However, the flue gas capture pipes in the slag pit quenching method are mostly set behind the hot pit, which results in poor flue gas collection. A large amount of flue gas and water vapor generated during the quenching process cannot be collected in time. To address these issues, we propose a top-suction flue gas capture device for a steel slag hot pouring pit. Utility Model Content

[0005] The present invention aims to solve the technical problem of poor flue gas collection in existing steel slag treatment devices.

[0006] Therefore, the technical solution adopted by this utility model is as follows:

[0007] A top-suction flue gas capture device for a hot slag pool includes a supporting steel beam, a flue gas capture hood, a dust collection box, a rotating support, a rotating ventilation device, a dust removal pipe, and a steel bracket. The supporting steel beam is detachably connected to the hot slag pool. The flue gas capture hood is mounted on the supporting steel beam via the rotating support. The dust collection box is located above the flue gas capture hood. The rotating ventilation device is connected to both the dust collection box and the dust removal pipe. The steel bracket supports the rotating ventilation device. The flue gas capture hood can tilt around the rotating support at an angle of 0-80°. The dust collection box has multiple suction ports.

[0008] Preferably, the rotation of the flue gas collection hood is achieved by a rotating support and a rotating ventilation device, which work together to make the dust collection box rotate synchronously with the flue gas collection hood.

[0009] Preferably, the flue gas collection hood adopts a top-suction type flue gas collection method, and a baffle is provided at its front end.

[0010] Preferably, the supporting steel beam is equipped with slag cooling water pipes and nozzles, and the distribution of the water pipes and nozzles and the position of the dust collection port on the dust collection box are set according to the actual use of the hot water bath.

[0011] Preferably, the dust collection box and the flue gas capture hood are connected by a detachable flange.

[0012] Preferably, the dust collection box is provided with multiple dust suction ports, which are evenly distributed according to the water spraying position and the flue gas distribution position of the hot water pool.

[0013] Preferably, the supporting steel beam is detachably connected to the hot water bath by bolts, the flue gas collection hood is fastened to the supporting steel beam when closed, and the flue gas collection hood has gas collection holes.

[0014] Preferably, when performing slag dumping or slag removal operations, the flue gas capture hood is tilted to 80°, and when performing spray cooling, the flue gas capture hood is closed to 0°.

[0015] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0016] The device in this utility model consists of a supporting steel beam, a flue gas capture hood body, a rotating support, a dust collection device, and a steel bracket. The supporting steel beam is bolted to the hot water tank for easy installation and maintenance. When the flue gas capture hood is closed, it is fastened to the steel beam, and the flue gas is introduced into the dust collection box through the gas collection holes. The dust collection box is connected to the capture hood with a detachable flange for easy cleaning. When emptying the slag, the flue gas capture hood is opened to 80° to ensure the operating space of the slag tank, improve the utilization rate of the slag tank, and reduce damage to the hood. After the slag is full, the hood is closed to 0°. The flue gas and water vapor generated by the spray cooling are collected by multiple dust suction ports reasonably distributed on the dust collection box due to their upward dispersion characteristics, and discharged through the dust removal pipe to reduce overflow. After the surface slag cools, the hood is opened again to remove the slag. This process is repeated until the slag is completely cooled before it is transported away. Compared with rail-mounted mobile hoods, this device has a tilting angle of 0-80°, occupies less space, is suitable for various types of factories, and doubles the amount of slag that can be piled up. The collection hood has minimal obstruction, is easy to operate, and has a long service life. The dust collection box is easy to clean and has low maintenance costs. The top-suction collection combined with the baffle curtain and a reasonable dust suction port layout results in excellent flue gas collection. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a top view of the overall structure of this utility model.

[0019] In the diagram: 1. Hot water bath; 2. Supporting steel beam; 3. Flue gas collection hood; 4. Dust collection box; 5. Rotary support; 6. Rotary ventilation device; 7. Dust removal duct; 8. Steel bracket; 9. Removable flange. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example: Figures 1-2 As shown, this utility model provides a top-suction flue gas capture device for a hot slag pool, the structure of which mainly consists of a supporting steel beam 2, a flue gas capture hood 3, a rotating support 5, a dust collection device, and a steel support 8.

[0022] The supporting steel beam 2 is detachably connected to the hot water bath 1 via bolts. This detachable connection allows for flexible disassembly and installation of the supporting steel beam 2 during device installation, maintenance, or other operations requiring the hot water bath 1. The flue gas collection hood 3, when closed, is fastened to the supporting steel beam 2 and has collection holes to draw the flue gas above the hot water bath 1 into the connected dust collection box 4. The dust collection box 4 is connected to the flue gas collection hood 3 via a detachable flange 9. This connection structure facilitates regular disassembly and cleaning of the dust collection box 4, effectively solving the problem of pipe blockage caused by water vapor and dust in the flue gas, and avoiding the difficulties of high-altitude cleaning operations.

[0023] The rotary ventilation device 6 is located at the rear of the hot water bath 1 and is connected to the dust collection box 4 and the dust removal pipe 7. The steel bracket 8 supports the rotary ventilation device 6, ensuring its installation stability. The flue gas collection hood 3 can be tilted around its axis via a rotating support 5, with a tilting angle range of 0-80°. Furthermore, the dust collection box 4 and the flue gas collection hood 3 can rotate synchronously with the cooperation of the rotating support 5, the rotary ventilation device 6, and the detachable flange 9, ensuring continuous dust collection during rotation.

[0024] When slag dumping is required, the flue gas capture hood 3 is first tilted and opened to 80°. This large opening angle provides sufficient operating space for the slag pot lifted by the overhead crane, ensuring that the slag can be smoothly poured into the inner side of the hot pouring pool 1 during dumping. This avoids the situation where most of the slag is dumped on the outside of the slag pool due to space constraints, thus effectively improving the utilization rate of the slag pool. At the same time, the large tilting angle also prevents the slag pot from colliding with the dust collector hood due to swaying and swinging during dumping, reducing damage to the flue gas capture hood 3 and extending its service life. The overhead crane lifts the slag pot and pours the slag into the hot pouring pool 1. After several dumping operations, the hot pouring pool 1 reaches its full volume.

[0025] After the hot water bath 1 is filled with steel slag, the flue gas collection hood 3 is closed to 0°C. At this time, the steel slag cooling water pipes and nozzles installed on the supporting steel beam 2 begin to work, cooling the steel slag by spraying cooling water. During the spraying process, the steel slag will generate a large amount of flue gas and water vapor. Since flue gas and water vapor always have the characteristic of rising when there is no external flow field, the closed flue gas collection hood 3 forms a space above the hot water bath 1 to contain the flue gas, allowing the flue gas to gather at the top of the hot water bath 1. The dust collection box 4 is set above the flue gas collection hood 3, and has multiple dust suction ports distributed on it. These dust suction ports are reasonably arranged according to the water spraying position of the hot water bath 1 and the flue gas distribution characteristics, which can effectively collect the flue gas above the hot water bath 1 into the dust collection box 4, and then enter the dust removal pipe 7 through the dust collection box 4, ultimately achieving effective capture of the flue gas and reducing the impact of flue gas overflow on the environment.

[0026] After the surface layer of steel slag in the hot pouring pool 1 has basically cooled down, the flue gas capture hood 3 is opened again to 80° to allow the loader to smoothly enter the hot pouring pool 1 to remove the steel slag. The purpose of removing the slag is to expose the lower layer of uncooled steel slag, creating conditions for subsequent spray cooling operations. After the slag removal is completed, the flue gas capture hood 3 is closed to 0°, and the spray cooling water operation continues to cool the steel slag.

[0027] The above steps of slag dumping, spray cooling, and slag removal are repeated until the steel slag in the slag pool is completely cooled. Once the steel slag is completely cooled, the flue gas collection hood 3 is opened to 80°. At this time, the loader transports the cooled steel slag to the truck loading platform for the next process.

[0028] The flue gas collection hood 3 of this device has a tilting angle of 0-80°, requiring little tilting space and significantly reducing the actual space occupied compared to rail-mounted mobile hoods. This makes the device suitable for various plant buildings, especially steel slag hot pouring plants with compact layouts and limited space, effectively saving plant space and maximizing the utilization rate of the hot pouring pool 1. Based on actual usage results after installation, this device doubles the slag storage capacity compared to rail-mounted mobile hoods.

[0029] When the collection hood is tilted to its maximum angle of 80°, it minimizes obstruction of the hot water pool 1, simplifying slag removal and cleaning operations, reducing damage to the collection hood during operation, and ensuring its service life. Meanwhile, the dust collection box 4 and the flue gas collection hood 3 are connected by a detachable flange 9, allowing for periodic disassembly and cleaning, avoiding the difficulties of high-altitude cleaning operations and reducing maintenance costs.

[0030] This device adopts a top-suction flue gas collection method, and a baffle is set at the front end of the flue gas collection hood 3, forming an effective volume of flue gas, so that the flue gas can be better collected at the top of the hot water pool 1. The dust collection port on the dust collection box 4 is reasonably distributed according to the water spraying position and flue gas distribution characteristics, which can effectively collect the flue gas into the dust collection box 4, achieving a good flue gas collection effect and effectively reducing flue gas overflow.

[0031] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A top-suction flue gas capture device for a hot slag pool, characterized in that, The system includes a supporting steel beam, a flue gas collection hood, a dust collection box, a rotating support, a rotating ventilation device, a dust removal duct, and a steel bracket. The supporting steel beam is detachably connected to the hot water bath. The flue gas collection hood is mounted on the supporting steel beam via the rotating support. The dust collection box is located above the flue gas collection hood. The rotating ventilation device is connected to both the dust collection box and the dust removal duct. The steel bracket supports the rotating ventilation device. The flue gas collection hood can tilt around the rotating support at an angle of 0-80°. The dust collection box has multiple suction ports.

2. The top-suction flue gas capture device for steel slag hot pouring pool according to claim 1, characterized in that, The rotation of the flue gas collection hood is achieved by a rotating support and a rotating ventilation device, which work together to make the dust collection box rotate synchronously with the flue gas collection hood.

3. The top-suction flue gas capture device for steel slag hot pouring pool according to claim 1, characterized in that, The flue gas collection hood adopts a top-suction type flue gas collection method, and a baffle is installed at its front end.

4. The top-suction flue gas capture device for steel slag hot pouring pool according to claim 1, characterized in that, The supporting steel beam is equipped with slag cooling water pipes and nozzles. The distribution of the water pipes and nozzles and the position of the dust collection port on the dust collection box are set according to the actual use of the hot water bath.

5. The top-suction flue gas capture device for steel slag hot pouring pool according to claim 1, characterized in that, The dust collection box and the flue gas capture hood are connected by a detachable flange.

6. The top-suction flue gas capture device for steel slag hot pouring pool according to claim 1, characterized in that, The dust collection box is equipped with multiple dust suction ports, which are evenly distributed according to the water spraying position of the hot water pool and the distribution position of the flue gas.

7. The top-suction flue gas capture device for steel slag hot pouring pool according to claim 1, characterized in that, The supporting steel beam is detachably connected to the hot water pool by bolts. When the flue gas collection hood is closed, it is fastened to the supporting steel beam. The flue gas collection hood has gas collection holes.

8. The top-suction flue gas capture device for steel slag hot pouring pool according to claim 1, characterized in that, When performing slag dumping or slag removal operations, the flue gas capture hood is tilted to 80°; when performing spray cooling, the flue gas capture hood is closed to 0°.

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