Device for discharging underground steam of heat stewing tank

Abstract

The utility model relates to a device for discharging underground steam of a hot stew tank, and belongs to the technical field of steel slag primary treatment equipment in the metallurgical industry. The first steam exhaust pipeline (1) and the second steam exhaust pipeline (4) are arranged in parallel, one ends of the first steam exhaust pipeline and the second steam exhaust pipeline are fixed on the ground of the first underground layer (3), and the other ends of the first steam exhaust pipeline and the second steam exhaust pipeline extend out of the first overground layer (2) and are arranged in the air bellow (6); a dedusting branch pipeline (7) is arranged on the side face of the air bellow. Outlets of the first steam exhaust pipeline and the second steam exhaust pipeline in the air bellow face the dedusting branch pipeline. The air bellow is connected with a dust removal main pipeline (9) through a dust removal branch pipeline (7), and the dust removal main pipeline (9) is connected with a dust removal fan (8). According to the utility model, the steam generated by drainage of the hot braising tank in the production process is timely collected through the pipeline, so that the steam is prevented from overflowing, the environmental pollution is reduced, the corrosion to underground equipment is reduced, the equipment maintenance environment is improved, the equipment maintenance labor intensity of operators is reduced, and the equipment failure rate is reduced.

Description

Technical Field

[0001] The utility model relates to a device for discharging underground steam of a hot soaking tank, belonging to the technical field of primary steel slag treatment equipment in the metallurgical industry. Background Art

[0002] After the hot soaking of steel slag in the steelmaking plant is completed by the hot soaking tank, the spray water in the tank flows into the trench through the drainage valve on the second basement floor. Due to the high temperature of the hot soaked steel slag, a large amount of steam will be generated during drainage, corroding underground pipelines, the valve body and the actuator of the electric valve, resulting in pipeline damage and valve jamming and unable to operate, and a large amount of time and manpower are required to maintain the equipment. Content of the Utility Model

[0003] The purpose of the utility model is to provide a device for discharging underground steam of a hot soaking tank, which can timely collect the steam generated by the drainage of the hot soaking tank during the production process through pipelines, prevent steam from overflowing, reduce environmental pollution, reduce the corrosion of underground equipment, improve the equipment environment, reduce the labor intensity of operators for equipment maintenance, reduce the equipment failure rate, and solve the problems existing in the background art.

[0004] The technical solution of the utility model is as follows:

[0005] A device for discharging underground steam of a hot soaking tank includes a first steam discharge pipeline, a second steam discharge pipeline, an air box, a dust removal branch pipeline, a dust removal fan and a dust removal main pipeline. The first steam discharge pipeline and the second steam discharge pipeline are arranged in parallel. One end of the first steam discharge pipeline and the second steam discharge pipeline is fixed on the ground of the first basement floor, and the other end extends out of the first floor above the ground and is arranged inside the air box; a dust removal branch pipeline is arranged on the side of the air box, and the outlets of the first steam discharge pipeline and the second steam discharge pipeline inside the air box are arranged towards the dust removal branch pipeline; the air box is connected to the dust removal main pipeline through the dust removal branch pipeline, and the dust removal main pipeline is connected to the dust removal fan.

[0006] The dust removal branch pipeline is laid along the ground, and the diameter of the dust removal branch pipeline is smaller than the height of the air box.

[0007] One end of the first steam discharge pipeline and the second steam discharge pipeline is fixed on the ground of the first basement floor through multiple rib plate brackets one, and the first steam discharge pipeline and the second steam discharge pipeline are fixedly connected to the roof of the first basement floor through multiple rib plate brackets two.

[0008] The rib plate bracket one is a triangular rib plate bracket, and the rib plate bracket two is a rectangular rib plate bracket.

[0009] Both the rib plate bracket one and the rib plate bracket two are made of thick steel plates. The first steam discharge pipeline and the second steam discharge pipeline are respectively welded with multiple rib plate brackets one and rib plate brackets two along the circumferential direction for supporting and fixing the first steam discharge pipeline and the second steam discharge pipeline on the ground and the roof of the first basement floor.

[0010] The dust removal branch pipeline is composed of two 90° elbows and a straight pipeline section. The two ends of the straight pipeline section are respectively connected to one end of the two 90° elbows, and the other ends of the two 90° elbows are respectively connected to the air box and the main dust removal pipeline.

[0011] High-temperature warning signs are set around the dust removal branch pipeline to prevent personnel from being scalded and ensure the safety of operating personnel.

[0012] The dust removal fan is a 200,000 dust removal fan.

[0013] During use, after the hot stewing of steel slag is completed, drainage is carried out through the drainage pipeline at the bottom of the hot stewing tank on the second basement floor. The steam generated by drainage is collected and summarized to the air box through the first steam discharge pipeline and the second steam discharge pipeline, and finally enters the main dust removal pipeline driven by the dust removal fan through the dust removal branch pipeline, and then undergoes dehydration and dust removal treatment through the wet electrostatic precipitator in the public auxiliary area.

[0014] The beneficial effects of the present utility model are as follows: The steam generated by the drainage of the hot stewing tank during the production process is timely collected through the pipeline, preventing steam from overflowing, reducing environmental pollution, reducing the corrosion of underground equipment, improving the equipment maintenance environment, reducing the labor intensity of operating personnel for equipment maintenance, and reducing the equipment failure rate. It has the characteristics of low design cost, small construction volume, simple structure, and good operation effect. Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of the present utility model;

[0016] Figure 2 It is a top view of the present utility model;

[0017] In the figure: the first steam discharge pipeline 1, the first basement floor 2, the second basement floor 3, the second steam discharge pipeline 4, the first rib plate bracket 5, the air box 6, the dust removal branch pipeline 7, the dust removal fan 8, the main dust removal pipeline 9, the second basement floor 10, the second rib plate bracket 11, the hot stewing tank 12, the drainage pipeline 13, the valve 14, the hot stewing tank cover 15. Detailed Embodiments

[0018] The present utility model will be further described below with reference to the drawings and by way of examples.

[0019] A device for discharging underground steam from a heat-insulating and stewing tank, comprising a first steam discharge pipe 1, a second steam discharge pipe 4, a bellows 6, a dust removal branch pipe 7, a dust removal fan 8 and a dust removal main pipe 9. The first steam discharge pipe 1 and the second steam discharge pipe 4 are arranged in parallel. One end of the first steam discharge pipe 1 and the second steam discharge pipe 4 is fixed on the ground of the first basement floor 3, and the other end extends out of the first floor 2 and is arranged inside the bellows 6. The dust removal branch pipe 7 is arranged on the side of the bellows 6, and the outlets of the first steam discharge pipe 1 and the second steam discharge pipe 4 inside the bellows 6 are arranged towards the dust removal branch pipe 7. The bellows 6 is connected to the dust removal main pipe 9 through the dust removal branch pipe 7, and the dust removal main pipe 9 is connected to the dust removal fan 8.

[0020] The dust removal branch pipe 7 is laid along the ground, and the diameter of the dust removal branch pipe 7 is smaller than the height of the bellows 6.

[0021] One end of the first steam discharge pipe 1 and the second steam discharge pipe 4 is fixed on the ground of the first basement floor 3 through a plurality of ribbed plate brackets 5, and the first steam discharge pipe 1 and the second steam discharge pipe 4 are fixedly connected to the roof of the first basement floor 3 through a plurality of ribbed plate brackets 11.

[0022] The ribbed plate bracket 5 is a triangular ribbed plate bracket, and the ribbed plate bracket 11 is a rectangular ribbed plate bracket.

[0023] Both the ribbed plate bracket 5 and the ribbed plate bracket 11 are made of thick steel plates. The first steam discharge pipe 1 and the second steam discharge pipe 4 are respectively welded with a plurality of ribbed plate brackets 5 and ribbed plate brackets 11 along the circumferential direction to support and fix the first steam discharge pipe 1 and the second steam discharge pipe 4 on the ground and the roof of the first basement floor 3.

[0024] The dust removal branch pipe 7 is composed of two 90° elbows and a section of straight pipe. The two ends of the straight pipe are respectively connected to one end of the two 90° elbows, and the other ends of the two 90° elbows are respectively connected to the bellows 6 and the dust removal main pipe 9.

[0025] High-temperature warning signs are arranged around the dust removal branch pipe 7 to prevent personnel from being scalded and ensure the safety of operating personnel.

[0026] The dust removal fan 8 is a two-hundred-thousand dust removal fan.

[0027] In this embodiment, the first steam discharge pipe 1 and the second steam discharge pipe 4 are arranged in parallel in the north-south longitudinal direction. The first steam discharge pipe 1 and the second steam discharge pipe 4 are connected to the openings on the first floor 2. The first steam discharge pipe 1 and the second steam discharge pipe 4 extend out of the first floor 2 through the openings and are fixedly welded to the bellows 6 on the first floor 2. The first steam discharge pipe 1 and the second steam discharge pipe 4 are fixedly connected to the ground and the roof of the first basement floor 3 through a plurality of ribbed plate brackets 5 and ribbed plate brackets 11 respectively. The bellows 6 is connected to the dust removal main pipe 9 through the dust removal branch pipe 7.

[0028] The parts of the steam discharge pipe 1 and the steam discharge pipe 4 extending out of the first above-ground floor 2 are arranged inside the air box 6, and the outlets are oriented towards the dust removal branch pipe 7; the steam discharge pipe 1 and the steam discharge pipe 4 are fixedly welded inside the air box 6 with steel plates of the same thickness.

[0029] The dust removal branch pipe 7 is laid along the ground. The diameter of the dust removal branch pipe 7 is smaller than the height of the air box 6, and the dust removal branch pipe 7 is welded to the side of the air box 6.

[0030] Both the rib bracket 1 5 and the rib bracket 2 11 are made of thick steel plates. Multiple rib brackets 1 5 and rib brackets 2 11 are respectively welded around the steam discharge pipe 1 and the steam discharge pipe 4 to support and fix the steam discharge pipe 1 and the steam discharge pipe 4 on the ground of the basement floor 3 and the roof.

[0031] In practical applications, the steam discharge pipe 1 and the steam discharge pipe 4 use 5 mm steel plates to be welded into an 800 mm diameter pipe by a plate rolling machine as the underground steam discharge pipe, arranged at an interval of 500 mm and installed longitudinally in the north-south direction. The ground part pipes of the steam discharge pipe 1 and the steam discharge pipe 4 are fixedly welded inside the air box 6 with 3 mm steel plates; the dust removal branch pipe 7 is welded to the side of the air box 6 with holes opened, and gas shielded welding is used for tight welding. The outlets of the steam discharge pipe 1 and the steam discharge pipe 4 are oriented towards the dust removal branch pipe 7.

[0032] The dust removal branch pipe 7 is composed of two 90° elbows and a section of straight pipe, and uses 5 mm steel plates to be welded into a 600 mm diameter pipe by a plate rolling machine as the branch exhaust pipe. One end is connected to the air box 6, and the other end is connected to the dust removal main pipe 9. The pipe welds are tightly welded with gas shielded welding. The dust removal branch pipe 7 is laid along the ground, and high-temperature warning signs should be set around to prevent personnel from being scalded and ensure the safety of operating personnel.

[0033] During the use of the present utility model, in production, the two-hundred-thousand dust removal fan is interlocked with the on-site equipment, and the rotational speed of the dust removal fan is adjusted by frequency conversion according to the start and stop conditions of the steel slag treatment equipment. After the steel slag hot soaking is completed, drainage is carried out through the drainage pipe 13 at the bottom of the hot soaking tank 12 in the second basement floor 10. The steam generated by drainage is collected and aggregated into the air box 6 through the steam discharge pipe 1 and the steam discharge pipe 4, and finally enters the dust removal main pipe 9 driven by the dust removal fan 8 through the dust removal branch pipe 7, and then undergoes dehydration and dust removal treatment through the wet electrostatic precipitator in the public auxiliary area.

[0034] The use of the present utility model greatly improves the problem that the underground steam of the hot soaking tank has nowhere to be discharged, reduces the corrosion of underground equipment, reduces the labor intensity of operating personnel for equipment maintenance, reduces the equipment failure process rate, and provides a reliable guarantee for the steel slag hot soaking system. The present utility model has the characteristics of low design cost, small construction volume, simple structure, and good application effect.

Claims

1. A device for discharging underground steam from a hot stewing tank, characterized in that: The invention comprises a steam exhaust pipe (1), a steam exhaust pipe (4), a wind box (6), a dust removal branch pipe (7), a dust removal fan (8) and a dust removal main pipe (9). The steam exhaust pipe (1) and the steam exhaust pipe (4) are arranged in parallel. One end of the steam exhaust pipe (1) and the steam exhaust pipe (4) is fixed on the ground of the first underground floor (3), and the other end extends out of the first aboveground floor (2) and is arranged inside the wind box (6). The dust removal branch pipe (7) is arranged on the side of the wind box (6). The outlets of the steam exhaust pipe (1) and the steam exhaust pipe (4) inside the wind box (6) are arranged toward the dust removal branch pipe (7). The wind box (6) is connected to the dust removal main pipe (9) through the dust removal branch pipe (7), and the dust removal main pipe (9) is connected to the dust removal fan (8).

2. The device for discharging underground steam from a hot stewing tank according to claim 1, characterized in that: The dust removal branch pipeline (7) is laid along the ground, and the diameter of the dust removal branch pipeline (7) is smaller than the height of the wind box (6).

3. A device for discharging underground steam from a hot stewing tank according to claim 1 or 2, characterized in that: One end of the steam exhaust pipe 1 (1) and the steam exhaust pipe 2 (4) are fixed to the ground of the first underground floor (3) through a plurality of rib plate brackets 1 (5), and the steam exhaust pipe 1 (1) and the steam exhaust pipe 2 (4) are fixedly connected to the roof of the first underground floor (3) through a plurality of rib plate brackets 2 (11).

4. The device for discharging underground steam from a hot stewing tank according to claim 3, characterized in that: The rib plate bracket 1 (5) is a triangular rib plate bracket, and the rib plate bracket 2 (11) is a rectangular rib plate bracket.

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