CN221005982U - High temperature sinter heat sink - Google Patents
High temperature sinter heat sink Download PDFInfo
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- CN221005982U CN221005982U CN202322643810.6U CN202322643810U CN221005982U CN 221005982 U CN221005982 U CN 221005982U CN 202322643810 U CN202322643810 U CN 202322643810U CN 221005982 U CN221005982 U CN 221005982U
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- temperature
- air cooler
- cooler
- conveying belt
- sinter
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- 238000005245 sintering Methods 0.000 claims abstract description 29
- 238000001816 cooling Methods 0.000 claims abstract description 23
- 238000005507 spraying Methods 0.000 claims description 35
- 239000007789 gas Substances 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 20
- 239000003546 flue gas Substances 0.000 claims description 20
- 239000007921 spray Substances 0.000 claims description 20
- 239000002918 waste heat Substances 0.000 claims description 11
- 230000000712 assembly Effects 0.000 claims description 10
- 238000000429 assembly Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 9
- 238000011084 recovery Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 16
- 238000007599 discharging Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The utility model discloses a high-temperature sinter cooling device, which belongs to the technical field of sintering production and comprises an annular cooler, wherein a first air cooler, a second air cooler, a third air cooler, a fourth air cooler and a fifth air cooler are sequentially arranged along the running direction of the annular cooler, and a gas collecting hood is arranged above the corresponding annular cooler position of each air cooler; the utility model can effectively monitor the temperature of the sintering ores on the annular cooler and the conveyor belt, and simultaneously performs cooling treatment when the temperature of the sintering ores is higher so as to avoid belt ignition and production accidents.
Description
Technical Field
The utility model belongs to the technical field of sintering production, and particularly relates to a high-temperature sinter cooling device.
Background
The ring cooler is a cooling device for sinter, a plurality of air coolers are sequentially arranged along the running direction of the ring cooler, and the sinter on the ring cooler is gradually cooled to a safe range by the air coolers and then conveyed by a conveying belt. At present, the technology for recycling the high-temperature flue gas at the front end of the annular cooler is commonly utilized, namely, a waste heat induced draft fan is added at the front end of the annular cooler, the front high-temperature flue gas is led away for recycling (generally, the flue gas corresponding to the first air cooler and the second air cooler), and the front air cooler (generally, the first air cooler and the second air cooler) is in a closed state at the moment, so that the waste heat recovery rate is improved, and the production cost is reduced. In the sintering production process, the temperature of the sintering ore on the sintering circular cooler is easy to be higher due to the fluctuation of ingredients or production process. If the sinter on the ring cooler cannot be reduced to the required temperature after being cooled by ring cooling, the high-temperature sinter can fall onto the conveying belt, and the belt can catch fire in the conveying process, equipment is damaged, and even fire is caused to cause serious production accidents.
Disclosure of Invention
Aiming at the problems existing in the prior art, the utility model provides the high-temperature sinter cooling device which can effectively monitor the temperature of the sinter on the annular cooler and the conveyor belt, and simultaneously perform cooling treatment when the temperature of the sinter is higher so as to avoid the ignition of the belt and the production accident.
The utility model is realized in such a way that the high-temperature sinter cooling device comprises a circular cooler, wherein a first air cooler, a second air cooler, a third air cooler, a fourth air cooler and a fifth air cooler are sequentially arranged along the running direction of the circular cooler, and a gas collecting hood is arranged above the position of the circular cooler corresponding to each air cooler;
The waste heat induced draft fan is arranged between the first air cooler and the second air cooler and is used for guiding away smoke in the gas collecting hood corresponding to the first air cooler and the second air cooler, a buffer bin is arranged at the discharge end of the annular cooler, a first conveying belt is arranged at the discharge end of the buffer bin, and a second conveying belt is arranged at the discharge end of the first conveying belt.
Further, a plurality of spraying components are arranged above the first conveying belt and the second conveying belt along the advancing direction of the materials, each spraying component comprises a spraying head and a water inlet pipe, the spraying heads are communicated with an external water source through the water inlet pipes, and a start-stop valve is arranged on the water inlet pipe of each spraying component.
Further, the diameter of the spray holes of the spray heads positioned at the tail end of the first conveying belt along the material conveying direction is larger than that of the spray holes of other spray heads, so that the cooling effect is improved.
Furthermore, the water supply pressure in the water inlet pipe is more than or equal to 1.5bar.
Further, a first temperature detector for detecting the temperature of the flue gas in the gas collecting hood corresponding to the first air cooler is arranged in the gas collecting hood corresponding to the first air cooler, the temperature of the flue gas in the gas collecting hood at the front end of the annular cooler is monitored, the high-temperature sintered ore can be cooled from the front end through the opening of the first air cooler and the second air cooler and the opening adjustment of an air door, and the blast cooling is adopted, so that the influence on the quality of the sintered ore can be reduced, and meanwhile, the safety risk of the high-temperature sintered ore in treatment on a conveying belt is reduced; the first conveyer belt top sets up the second thermoscope that is used for detecting the sintering deposit temperature on the first conveyer belt, the second conveyer belt top sets up the third thermoscope that is used for detecting the sintering deposit temperature on the second conveyer belt, when the flue gas temperature in the gas collecting channel of ring cooler front end is normal or "pseudo" normal because of technology or equipment reason, the sintering deposit average temperature that detects through second thermoscope and third thermoscope can also monitor high temperature sintering deposit and carry out the relevant processing to avoid taking place the production accident.
Further, the first temperature measuring instrument, the second temperature measuring instrument and the third temperature measuring instrument are all electrically connected with the controller, the first air cooler and the second air cooler are all electrically connected with the controller, and the start-stop valve on the water inlet pipe in each spraying assembly is electrically connected with the controller.
Further, when the flue gas temperature in the gas collecting hood corresponding to the first air cooler is more than or equal to 500 ℃ and is maintained for more than 5000ms, the second air cooler is opened, the opening of the air door is 20%, and the opening of the air door is increased by 20% when the flue gas temperature is increased by 10 ℃.
Further, when the temperature of the flue gas in the gas collecting hood corresponding to the first air cooler is more than or equal to 550 ℃ and is maintained for more than 5000ms, the first air cooler and the second air cooler are opened, and the opening degree of the air door is 100%.
Further, when the average temperature of the sintering ores on the first conveying belt and the second conveying belt is more than or equal to 120 ℃ and is maintained for more than 3000ms, a first spraying assembly on the first conveying belt is started, and when the average temperature of the sintering ores is increased by 10 ℃, the number of the spraying assemblies is increased by one until the last one spraying assembly is started, and the spray water assembly at the tail end is kept in a closed state; when the average temperature of the sintering ores on the first conveying belt and the second conveying belt is more than or equal to 150 ℃ and is maintained for more than 3500ms, a first spraying assembly on the second conveying belt is started, and the number of the spraying assemblies is increased by one when the average temperature of the sintering ores is increased by 5 ℃.
Further, when the average temperature of the sintered ore on the first conveying belt and the second conveying belt is more than or equal to 170 ℃ and is maintained for more than 4500ms, all spraying assemblies on the first conveying belt are opened.
The utility model has the advantages and technical effects that: by adopting the technical scheme, the temperature of the sintering ore on the circular cooler and the conveyor belt can be effectively monitored, and meanwhile, when the temperature of the sintering ore is higher, the temperature reduction treatment is carried out so as to avoid the ignition of the belt and the production accident.
Drawings
Fig. 1 is a schematic diagram of an overall structure provided in an embodiment of the present utility model.
In the figure: 1. a ring cooler; 2. a first air cooler; 3. a second air cooler; 4. a third air cooler; 5. a fourth air cooler; 6. a fifth air cooler; 7. a waste heat induced draft fan; 8-1, a first thermometer; 8-2, a second thermometer; 8-3, a third thermometer; 9. a buffer bin; 10. a first conveyor belt; 11. a second conveyor belt; 12. and a spray assembly.
Detailed Description
The present utility model will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
It should be noted that the positional or positional relationship indicated by the terms "upper", "lower", "left", "right", "top", "bottom", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
As shown in fig. 1, the application provides a high-temperature sinter cooling device, which comprises a circular cooler 1, wherein a first air cooler 2, a second air cooler 3, a third air cooler 4, a fourth air cooler 5 and a fifth air cooler 6 are sequentially arranged along the running direction of the circular cooler 1, and a gas collecting hood is arranged above the position of the circular cooler 1 corresponding to each air cooler; the waste heat induced draft fan 7 is arranged between the first air cooler 2 and the second air cooler 3, the waste heat induced draft fan 7 is used for guiding away smoke in the corresponding gas collecting hoods of the first air cooler 2 and the second air cooler 3, a material discharging end of the annular cooler 1 is provided with a buffer bin 9, a material discharging end of the buffer bin 9 is provided with a first conveying belt 10, and a material discharging end of the first conveying belt 10 is provided with a second conveying belt 11.
A plurality of spraying assemblies 12 are arranged above the first conveying belt 10 and the second conveying belt 11 along the advancing direction of materials, each spraying assembly 12 comprises a spraying head and a water inlet pipe, the spraying heads are communicated with an external water source through the water inlet pipes, and a start-stop valve is arranged on the water inlet pipe of each spraying assembly 12. The spray holes of the spray heads positioned at the extreme end of the first conveying belt 10 along the material conveying direction have larger diameters than those of the spray holes of other spray heads so as to improve the cooling effect. The water supply pressure in the water inlet pipe is more than or equal to 1.5bar.
The gas collecting hood corresponding to the first air cooler 2 is internally provided with a first temperature detector 8-1 for detecting the temperature of the flue gas in the gas collecting hood, the temperature of the flue gas in the gas collecting hood at the front end of the annular cooler 1 is monitored, the high-temperature sintered ore can be cooled from the front end through the opening of the first air cooler 2 and the second air cooler 3 and the opening of the air door is adjusted, and the blast cooling is adopted, so that the influence on the quality of the sintered ore can be reduced, and meanwhile, the safety risk of the high-temperature sintered ore on a conveying belt is reduced; the second temperature measuring instrument 8-2 for detecting the temperature of the sinter on the first conveyor belt 10 is arranged above the first conveyor belt 10, the third temperature measuring instrument 8-3 for detecting the temperature of the sinter on the second conveyor belt 11 is arranged above the second conveyor belt 11, and when the temperature of the flue gas in the gas collecting hood at the front end of the annular cooler 1 is normal or false and normal due to process or equipment reasons, the average temperature of the sinter detected by the second temperature measuring instrument 8-2 and the third temperature measuring instrument 8-3 can also monitor the high-temperature sinter and perform related treatment so as to avoid production accidents.
The first temperature measuring instrument 8-1, the second temperature measuring instrument 8-2 and the third temperature measuring instrument 8-3 are all electrically connected with the controller, the first air cooler 2 and the second air cooler 3 are all electrically connected with the controller, and the start-stop valve on the water inlet pipe in each spraying assembly 12 is all electrically connected with the controller. The controller can receive feedback signals of the first temperature measuring instrument 8-1, the second temperature measuring instrument 8-2 and the third temperature measuring instrument 8-3, and control the opening and the opening adjustment of the first air cooler 2 and the second air cooler 3 and the opening of the start-stop valves of the spraying assemblies 12.
When the flue gas temperature in the gas collecting hood corresponding to the first air cooler 2 is more than or equal to 500 ℃ and is maintained for more than 5000ms, the controller controls the second air cooler 3 to be opened, the opening of the air door is 20%, and the opening of the air door is increased by 20% when the flue gas temperature is increased by 10 ℃. When the temperature of the flue gas in the gas collecting hood corresponding to the first air cooler 2 is more than or equal to 550 ℃ and is maintained for more than 5000ms, the controller controls the first air cooler 2 and the second air cooler 3 to be opened, the opening of the air door is 100%, and meanwhile, the reasons are searched for, so that production accidents are avoided.
When the average temperature of the sintering ores on the first conveying belt 10 and the second conveying belt 11 is more than or equal to 120 ℃ and is maintained for more than 3000ms, the controller controls the first spraying component 12 on the first conveying belt 10 to be opened, and when the average temperature of the sintering ores is increased by 10 ℃, the number of the spraying components 12 is increased by one until the last-last spraying component is opened, and the spray water component at the tail end is kept in a closed state; when the average temperature of the sintering ores on the first conveying belt 10 and the second conveying belt 11 is more than or equal to 150 ℃ and is maintained for more than 3500ms, the controller controls the first spraying assembly 12 on the second conveying belt 11 to be opened, and the opening number of the spraying assemblies 12 is increased by one when the average temperature of the sintering ores is increased by 5 ℃. When the average temperature of the sintering ores on the first conveyor belt 10 and the second conveyor belt 11 is more than or equal to 170 ℃ and is maintained for more than 4500ms, the controller controls the spray assemblies 12 on the first conveyor belt 10 to be all opened, namely, when the average temperature of the sintering ores is more than or equal to 170 ℃ and is maintained for more than 4500ms, the spray assemblies 12 at the tail end of the first conveyor belt 10 are opened, and meanwhile, reasons are searched for so as to avoid production accidents.
During normal production, when waste heat recovery is needed, the waste heat induced draft fan 7 is started, the first air cooler 2 and the second air cooler 3 are closed, the waste heat induced draft fan 7 guides away smoke in the gas collecting hood above the position of the annular cooler 1 corresponding to the first air cooler 2 and the second air cooler 3, and the annular cooler cools down sinter by using the third air cooler 4, the fourth air cooler 5 and the fifth air cooler 6. When the temperature of the flue gas measured by the first thermometer 8-1 in the gas collecting hood above the annular cooler 1 corresponding to the first air cooler 2 exceeds a control standard, the controller controls the first air cooler 2 and the second air cooler 3 to start and stop and adjust the opening of the air door so as to reduce the temperature of the sinter. When the average temperature of the sintering ores detected by the second thermometer 8-2 and the third thermometer 8-3 above the first conveyor belt 10 and the second conveyor belt 11 exceeds the control standard, the controller controls the start and stop of the spraying assembly 12 above the first conveyor belt 10 and the second conveyor belt 11 so as to reduce the temperature of the sintering ores on the belts and avoid production accidents.
By adopting the technical scheme, the temperature of the sintering ore on the circular cooler 1 and the conveyor belt can be effectively monitored, and meanwhile, when the temperature of the sintering ore is higher, the temperature reduction treatment is carried out so as to avoid the ignition of the belt and the production accident.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (10)
1. The high-temperature sinter cooling device is characterized by comprising a circular cooler, wherein a first air cooler, a second air cooler, a third air cooler, a fourth air cooler and a fifth air cooler are sequentially arranged along the running direction of the circular cooler, and a gas collecting hood is arranged above the position of the circular cooler corresponding to each air cooler;
the waste heat recovery device is characterized in that a waste heat induced draft fan is arranged between the first air cooler and the second air cooler, a buffer bin is arranged at the discharge end of the annular cooler, a first conveying belt is arranged at the discharge end of the buffer bin, and a second conveying belt is arranged at the discharge end of the first conveying belt.
2. The high temperature sinter cooling device of claim 1, wherein a plurality of spraying components are arranged above the first conveying belt and the second conveying belt along the advancing direction of materials, each spraying component comprises a spraying head and a water inlet pipe, the spraying heads are communicated with an external water source through the water inlet pipes, and a start-stop valve is arranged on the water inlet pipe of each spraying component.
3. The high temperature sinter cooling device as claimed in claim 2, wherein the spray holes of the spray heads located at the extreme end of the first conveyor belt along the material conveying direction have larger diameters than the spray holes of the other spray heads.
4. The high temperature sintered ore cooling apparatus of claim 2, wherein the water supply pressure in the water inlet pipe is not less than 1.5bar.
5. The high-temperature sinter cooling device according to claim 2, wherein a first temperature detector for detecting the temperature of flue gas in the gas collecting hood is arranged in the gas collecting hood corresponding to the first air cooler, a second temperature detector for detecting the temperature of sinter on the first conveyor belt is arranged above the first conveyor belt, and a third temperature detector for detecting the temperature of sinter on the second conveyor belt is arranged above the second conveyor belt.
6. The high temperature sinter cooling device of claim 5, wherein the first, second and third thermometers are electrically connected to the controller, the first and second air coolers are electrically connected to the controller, and the start-stop valve on the inlet pipe of each spray assembly is electrically connected to the controller.
7. The high-temperature sinter cooling device according to claim 1, wherein when the flue gas temperature in the gas collecting hood corresponding to the first air cooler is more than or equal to 500 ℃ and is maintained for more than 5000ms, the second air cooler is opened, the opening of the air door is 20%, and the opening of the air door is increased by 20% when the flue gas temperature is increased by 10 ℃.
8. The high-temperature sinter cooling device according to claim 1, wherein when the temperature of the flue gas in the gas collecting hood corresponding to the first air cooler is more than or equal to 550 ℃ and is maintained for more than 5000ms, the first air cooler and the second air cooler are opened, and the opening degree of the air door is 100%.
9. The high-temperature sinter cooling device according to claim 2, wherein when the average temperature of the sinter on the first conveying belt and the second conveying belt is more than or equal to 120 ℃ and is maintained for more than 3000ms, a first spraying component on the first conveying belt is started, and when the average temperature of the sinter is increased by 10 ℃, the number of spraying components is increased by one until the last and last spraying component is started, and a spray water component at the tail end is kept in a closed state; when the average temperature of the sintering ores on the first conveying belt and the second conveying belt is more than or equal to 150 ℃ and is maintained for more than 3500ms, a first spraying assembly on the second conveying belt is started, and the number of the spraying assemblies is increased by one when the average temperature of the sintering ores is increased by 5 ℃.
10. The high temperature sinter cooling device of claim 2, wherein the spray assemblies on the first conveyor belt are all on when the average sinter temperature on the first conveyor belt and the second conveyor belt is greater than or equal to 170 ℃ and is maintained for more than 4500 ms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322643810.6U CN221005982U (en) | 2023-09-27 | 2023-09-27 | High temperature sinter heat sink |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322643810.6U CN221005982U (en) | 2023-09-27 | 2023-09-27 | High temperature sinter heat sink |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221005982U true CN221005982U (en) | 2024-05-24 |
Family
ID=91090189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322643810.6U Active CN221005982U (en) | 2023-09-27 | 2023-09-27 | High temperature sinter heat sink |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221005982U (en) |
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2023
- 2023-09-27 CN CN202322643810.6U patent/CN221005982U/en active Active
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