Slag detection emergency device for granulation tower

Abstract

The utility model discloses a slag detection emergency device for a granulation tower, which relates to the technical field of ironmaking equipment and comprises a granulation tower and a rotary drum, a supporting plate is mounted above the outer wall of the granulation tower, a first pneumatic telescopic rod is mounted at the upper end of the supporting plate, one end of the first pneumatic telescopic rod is connected with a thermal imaging thermodetector capable of entering the granulation tower, and the other end of the first pneumatic telescopic rod is connected with a second pneumatic telescopic rod. A diversion trench is mounted at an overflow port at the bottom of the side wall of the granulation tower, a top plate is connected to the upper end of the diversion trench, and an L-shaped support plate is connected to the upper end of the top plate. According to the utility model, when slag overflows, the thermal imaging thermodetector and the infrared thermodetector can be automatically withdrawn, the probability that the thermal imaging thermodetector and the infrared thermodetector are damaged is reduced, the diversion trench channel is closed by using the white steel flashboard, red slag is prevented from entering the rotary drum and the conveying belt, subsequent equipment is prevented from being damaged, and the service life of the rotary drum and the conveying belt is prolonged. And the two spraying pipes spray water to the conveying belt, so that the belt is prevented from being burnt by red slag.

Description

Technical Field

[0001] The utility model relates to the technical field of ironmaking equipment, in particular to a slag detection emergency device for a granulating tower. Background Art

[0002] In recent years, domestic metallurgical enterprises have repeatedly encountered accidents in which blast furnace slag enters the granulation tower, burns the drum and belt, and causes serious accident consequences. At present, Anshan Iron and Steel's seven blast furnaces use the Yinba and Wheel method water slag flushing treatment process. The treatment method is to use high-pressure water to purify and granulate the slag, dehydrate and separate it through the drum, and then transport it through the belt for external transportation. Therefore, controlling blast furnace slag and high-pressure flushing water is the key. Once there is no water in the process, a series of accidents such as slag entering the tower and burning will occur. Due to the particularity of the water slag flushing process, there are many reasons for the water outage of the flushing water during the slag flushing process, such as power failure of the granulation pump, system power outage, water shortage in the cooling tower, and premature slag discharge without starting the pump.

[0003] Problems:

[0004] 1. When the water-flushing slag system is in an accident state and there is no water, when the blast furnace slag enters the granulation tower, there is no early warning device and it must be discovered on-site by the furnace workers or by the operators in the main control room through video surveillance. When it is discovered, the accident has already occurred.

[0005] 2. The blast furnace slag enters the drum and belt through the granulation tower flow-limiting orifice plate and overflow port via the guide trough, causing serious accidents, such as drum burning, belt fire, and even burning of the entire belt corridor.

[0006] Therefore, a slag detection emergency device for a granulating tower is provided. Utility Model Content

[0007] In view of the deficiencies in the prior art, the utility model provides a slag detection emergency device for a granulating tower. When slag overflows, the thermal imaging thermometer and the infrared thermometer can be automatically exited, reducing the probability of damage to the thermal imaging thermometer and the infrared thermometer. The guide chute channel is closed by a white steel gate plate to block the red slag from entering the drum and conveyor belt, thereby ensuring that subsequent equipment is not damaged. Two spray pipes spray water on the conveyor belt to prevent the red slag from burning the belt, thereby overcoming the deficiencies in the prior art.

[0008] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0009] A slag detection emergency device for a granulating tower comprises a granulating tower and a rotating drum, wherein a support plate is installed above the outer wall of the granulating tower, a first pneumatic telescopic rod is installed at the upper end of the support plate, one end of the first pneumatic telescopic rod is connected to a thermal imaging thermometer that can enter the interior of the granulating tower, a guide groove is installed at the overflow port at the bottom of the side wall of the granulating tower, the upper end of the guide groove is connected to a top plate, the upper end of the top plate is connected to an L-shaped support plate, the horizontal section of the L-shaped support plate is connected to the lower end surface where a second pneumatic telescopic rod and a first pneumatic telescopic rod are installed Three pneumatic telescopic rods, the lower end of the second pneumatic telescopic rod is connected to an infrared thermometer that can enter the inside of the guide groove, the lower end of the third pneumatic telescopic rod is connected to a white steel gate that can be inserted into the guide groove, the outer wall of the granulating tower is fixed with a first solenoid valve, one end of the first solenoid valve is connected to a high-pressure water pipe, and the other end of the first solenoid valve extends to the inside of the granulating tower, the side wall of the granulating tower is located above the first solenoid valve and a slag inlet is provided, and a PLC controller is installed on the outer frame of the granulating tower.

[0010] As a further solution of the utility model: a conveyor belt is arranged inside the rotating drum, and one end of the conveyor belt extends to the outside of the rotating drum.

[0011] As a further solution of the utility model: a U-shaped frame is arranged on the outer side of the conveyor belt, two spray pipes are fixed on the horizontal section of the U-shaped frame, the two spray pipes extend to the inside of the drum, and the two spray pipes are located above the conveyor belt.

[0012] As a further solution of the utility model: one end of the two spray pipes located outside the drum is externally connected to a second solenoid valve, and one end of the two external second solenoid valves is connected to the water supply pipeline.

[0013] As a further solution of the utility model: the first pneumatic telescopic rod, the second pneumatic telescopic rod, the third pneumatic telescopic rod, the first solenoid valve and the second solenoid valve are all electrically connected to the PLC controller.

[0014] As a further solution of the utility model: two L-shaped limiting plates are fixed to the upper end surface of the top plate, and a gap is provided between the two L-shaped limiting plates.

[0015] As a further solution of the utility model: the white steel gate plate is located between the two L-shaped limit plates, and the two sides of the white steel gate plate are respectively in sliding contact with the two L-shaped limit plates.

[0016] The beneficial effects of the utility model are:

[0017] When slag overflows, the thermal imaging thermometer and infrared thermometer can be automatically exited to reduce the probability of damage to the thermal imaging thermometer and infrared thermometer. The white steel gate is used to close the diversion channel to block the red slag from entering the drum and conveyor belt, ensuring that subsequent equipment is not damaged. Two spray pipes spray water on the conveyor belt to prevent the red slag from burning the belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure from a first-person perspective of a slag detection emergency device for a granulating tower proposed by the utility model.

[0019] Figure 2 This is a second perspective stereoscopic structural schematic diagram of a slag detection emergency device for a granulating tower proposed by the utility model.

[0020] Figure 3 This is a schematic diagram of the stereoscopic structure from a third perspective of a slag detection emergency device for a granulating tower proposed by the utility model.

[0021] Figure 4 The utility model provides a slag detection emergency device for a granulating tower. Figure 2 Enlarged structural diagram at A in the middle.

[0022] In the figure: 1. Granulation tower; 2. Slag inlet; 3. First solenoid valve; 4. Diversion trough; 5. Rotating drum; 6. U-shaped frame; 7. Conveyor belt; 8. Spray pipe; 9. Support plate; 10. First pneumatic telescopic rod; 11. Thermal imaging thermometer; 12. L-shaped support plate; 13. Second pneumatic telescopic rod; 14. Third pneumatic telescopic rod; 15. Stainless steel gate; 16. L-shaped limit plate; 17. Infrared thermometer; 18. Top plate. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Example 1, reference Figure 1-4A slag detection emergency device for a granulating tower comprises a granulating tower 1 and a rotating drum 5. A support plate 9 is installed above the outer wall of the granulating tower 1. A first pneumatic telescopic rod 10 is installed on the upper end of the support plate 9. A thermal imaging thermometer 11 that can enter the interior of the granulating tower 1 is connected to one end of the first pneumatic telescopic rod 10. A guide groove 4 is installed at the overflow port at the bottom of the side wall of the granulating tower 1. A top plate 18 is connected to the upper end of the guide groove 4. An L-shaped support plate 12 is connected to the upper end of the top plate 18. A second pneumatic telescopic rod 13 is installed on the lower end surface of the horizontal section of the L-shaped support plate 12. and a third pneumatic telescopic rod 14, the lower end of the second pneumatic telescopic rod 13 is connected to an infrared thermometer 17 that can enter the inside of the guide groove 4, the lower end of the third pneumatic telescopic rod 14 is connected to a white steel gate 15 that can be inserted into the guide groove 4, the outer wall of the granulating tower 1 is fixed with a first solenoid valve 3, one end of the first solenoid valve 3 is connected to a high-pressure water pipe, and the other end of the first solenoid valve 3 extends to the inside of the granulating tower 1, the side wall of the granulating tower 1 is located above the first solenoid valve 3 and is provided with a slag inlet 2, and a PLC controller is installed on the outer frame of the granulating tower 1;

[0025] A conveyor belt 7 is arranged inside the rotating drum 5, and one end of the conveyor belt 7 extends to the outside of the rotating drum 5;

[0026] A U-shaped frame 6 is arranged outside the conveyor belt 7, and two spray pipes 8 are fixed on the horizontal section of the U-shaped frame 6. The two spray pipes 8 extend to the inside of the drum 5, and the two spray pipes 8 are both located above the conveyor belt 7;

[0027] One end of the two spray pipes 8 located outside the drum 5 is externally connected to a second solenoid valve, and one end of the two external second solenoid valves is connected to the water supply pipeline;

[0028] The first pneumatic telescopic rod 10 , the second pneumatic telescopic rod 13 , the third pneumatic telescopic rod 14 , the first solenoid valve 3 and the second solenoid valve are all electrically connected to the PLC controller.

[0029] When the first solenoid valve 3 is opened, water enters the granulation tower and contacts with the slag to generate a large amount of water vapor. At this time, after the PLC controller detects the opening signal of the first solenoid valve 3, it controls the first pneumatic telescopic rod 10 and the second pneumatic telescopic rod 13 to contract, and controls the third pneumatic telescopic rod 14 to extend, so that the first pneumatic telescopic rod 10 drives the thermal imaging thermometer 11 to withdraw to the outside of the granulation tower 1 to avoid water vapor from damaging the thermal imaging thermometer 11, and the second pneumatic telescopic rod 13 drives the infrared thermometer 17 to withdraw to the outside of the guide groove 4 to prevent the infrared thermometer 17 from being worn, and the third pneumatic telescopic rod 14 pushes the white steel gate plate 15 to be inserted into the guide groove 4, blocking the red slag from entering the drum 5 and the conveyor belt 7, ensuring that the subsequent equipment is not lost, and the PLC controller controls the two second solenoid valves to be in the open state, so that the two spray pipes 8 spray water on the conveyor belt 7 to prevent the red slag from burning the belt.

[0030] Embodiment 2: This embodiment is optimized on the basis of embodiment 1, specifically:

[0031] Two L-shaped limit plates 16 are fixed to the upper end surface of the top plate 18, and a gap is set between the two L-shaped limit plates 16. The white steel gate plate 15 is located between the two L-shaped limit plates 16, and the two sides of the white steel gate plate 15 are respectively slidably abutted against the two L-shaped limit plates 16. The two L-shaped limit plates 16 support the white steel gate plate 15, ensuring that the white steel gate plate 15 can smoothly enter and exit the guide groove 4.

[0032] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A slag detection emergency device for a granulating tower, comprising a granulating tower (1) and a rotating drum (5), characterized in that: A support plate (9) is installed above the outer wall of the granulation tower (1), a first pneumatic telescopic rod (10) is installed at the upper end of the support plate (9), one end of the first pneumatic telescopic rod (10) is connected to a thermal imaging thermometer (11) that can enter the granulation tower (1), a guide groove (4) is installed at the overflow port at the bottom of the side wall of the granulation tower (1), the upper end of the guide groove (4) is connected to a top plate (18), the upper end of the top plate (18) is connected to an L-shaped support plate (12), the horizontal section of the L-shaped support plate (12) is connected to the lower end surface with a second pneumatic telescopic rod (13) and a third pneumatic telescopic rod (14), The lower end of the second pneumatic telescopic rod (13) is connected to an infrared thermometer (17) that can enter the guide groove (4), the lower end of the third pneumatic telescopic rod (14) is connected to a white steel gate plate (15) that can be inserted into the guide groove (4), the outer wall of the granulating tower (1) is fixed with a first solenoid valve (3), one end of the first solenoid valve (3) is connected to a high-pressure water pipe, and the other end of the first solenoid valve (3) extends to the inside of the granulating tower (1), the side wall of the granulating tower (1) is provided with a slag inlet (2) above the first solenoid valve (3), and a PLC controller is installed on the outer frame of the granulating tower (1).

2. The slag detection emergency device for a granulating tower according to claim 1, characterized in that: A conveyor belt (7) is arranged inside the rotating drum (5), and one end of the conveyor belt (7) extends to the outside of the rotating drum (5).

3. The slag detection emergency device for a granulating tower according to claim 2, characterized in that: A U-shaped frame (6) is arranged on the outer side of the conveyor belt (7), and two spray pipes (8) are fixed on the horizontal section of the U-shaped frame (6). The two spray pipes (8) extend into the interior of the rotating drum (5), and the two spray pipes (8) are both located above the conveyor belt (7).

4. The slag detection emergency device for a granulating tower according to claim 3, characterized in that: One end of the two spray pipes (8) located outside the drum (5) is externally connected to a second solenoid valve, and one end of the two externally connected second solenoid valves is connected to a water supply pipeline.

5. The slag detection emergency device for a granulating tower according to claim 4, characterized in that: The first pneumatic telescopic rod (10), the second pneumatic telescopic rod (13), the third pneumatic telescopic rod (14), the first solenoid valve (3) and the second solenoid valve are all electrically connected to the PLC controller.

6. The slag detection emergency device for a granulating tower according to claim 1, characterized in that: Two L-shaped limit plates (16) are fixed to the upper end surface of the top plate (18), and a gap is provided between the two L-shaped limit plates (16).

7. The slag detection emergency device for a granulating tower according to claim 6, characterized in that: The white steel gate plate (15) is located between the two L-shaped limit plates (16), and two sides of the white steel gate plate (15) are respectively in sliding contact with the two L-shaped limit plates (16).

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