CN219907724U - Water cooling structure for preventing belt from being braised with red slag - Google Patents
Water cooling structure for preventing belt from being braised with red slag Download PDFInfo
- Publication number
- CN219907724U CN219907724U CN202320948336.5U CN202320948336U CN219907724U CN 219907724 U CN219907724 U CN 219907724U CN 202320948336 U CN202320948336 U CN 202320948336U CN 219907724 U CN219907724 U CN 219907724U
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- belt
- pipeline
- slag
- spraying
- slag flushing
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- 239000002893 slag Substances 0.000 title claims abstract description 84
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 53
- 238000001816 cooling Methods 0.000 title claims abstract description 22
- 238000011010 flushing procedure Methods 0.000 claims abstract description 52
- 238000005507 spraying Methods 0.000 claims abstract description 37
- 238000004140 cleaning Methods 0.000 claims abstract description 16
- 238000004080 punching Methods 0.000 claims abstract description 13
- 238000012986 modification Methods 0.000 abstract description 3
- 230000004048 modification Effects 0.000 abstract description 3
- 239000007921 spray Substances 0.000 description 24
- 238000000034 method Methods 0.000 description 9
- 238000007599 discharging Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 101100408457 Arabidopsis thaliana PLC9 gene Proteins 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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- Furnace Details (AREA)
Abstract
The utility model relates to a structure for preventing a red slag burning belt, in particular to a water-cooling structure for preventing the red slag burning belt, which comprises a slag flushing and punching box, a rotary drum cleaning pipeline and a slag flushing belt, wherein the slag flushing and punching box is connected with the rotary drum, the rotary drum is connected with the slag flushing belt in a belt corridor, and the rotary drum cleaning pipeline is arranged above the rotary drum; the device also comprises a temperature measuring instrument, a spraying water inlet pipeline, a spraying pipeline and an electric control valve, wherein the temperature measuring instrument is arranged at a slag flushing inlet of the slag flushing and preparing box, the spraying water inlet pipeline is connected with the spraying pipeline, the spraying pipeline is arranged above the slag flushing belt, the spraying pipeline is perpendicular to the running direction of the slag flushing belt, and the spraying water inlet pipeline is connected with a drum cleaning pipeline through the electric control valve; according to the utility model, red slag directly enters the slag flushing and punching box without water flushing and cooling and is conveyed to the belt, the spraying pipeline is used for effectively cooling the belt, so that the fire disaster of the belt corridor is avoided, and the accident loss is reduced; the device can be modified on the basis of the original system, has small modification amount and is easy to realize and popularize.
Description
Technical Field
The utility model relates to the technical field of blast furnace smelting, in particular to a water cooling structure for preventing a belt from being braised with red slag.
Background
The flushing slag is a main auxiliary process for blast furnace production, and the main process is that red slag enters a flushing slag flushing box after being flushed by water, enters a rotary drum after being cooled and crushed, and is transported out by a belt after being separated by water slag, and the production is continuously carried out. Due to the reasons of production operation, insufficient equipment management and the like, water interruption of a slag flushing system can be caused, red slag directly enters the belt on the rotary drum without being cooled, and then the transportation belt and equipment in the corridor are triggered to burn, so that fire disasters are caused.
The Chinese patent with publication number CN201545852U discloses a heating and ventilating device for a blast furnace water slag flushing belt corridor, which comprises a cold air blower, a combustion cylinder, a heat exchanger and a draught fan, wherein the cold air blower is respectively communicated with the belt corridor, the heat exchanger and the combustion cylinder through air pipes, the combustion cylinder connected with a gas inlet pipe is communicated with the gas inlet end of the heat exchanger, the gas outlet end of the heat exchanger is respectively connected with the belt corridor and the draught fan through pipelines, and the gas outlet end of the draught fan is connected with a chimney. After the device is used, the humidity can be effectively reduced, spot inspection maintenance of equipment can be normally performed, the safe operation of the equipment is ensured, and the blast furnace slow wind or damping down caused by the shutdown of a belt fault does not occur; however, the belt structure for preventing the red slag from being burned is used for easily causing fire caused by wind power to belts and other devices in the corridor, so that the required cooling effect cannot be achieved.
Chinese patent publication No. CN208407441U discloses an automatic water spraying device comprising: the slag cooling furnace, the valve control instrument, the infrared thermometer, the electric control valve, the slag discharging belt conveyor and the spray pipe; the spray pipe passes through the water inlet and is arranged in the slag cooling furnace; the valve control instrument is connected with the electric regulating valve and used for controlling the electric regulating valve to adjust the water yield of the spray pipe; the slag discharging belt conveyor is arranged below the discharge hole of the slag cooling furnace; the infrared thermometer is arranged above the slag discharge belt conveyor and is in communication connection with the valve control instrument, and the infrared thermometer is used for acquiring the temperature of materials on the slag discharge belt conveyor. The whole process does not need to manually adjust a water adding valve to the site to add or subtract water spraying amount to control the iron slag temperature from the slag discharging roller to the slag discharging belt conveyor, so that time and labor are saved, the process of acquiring the material temperature is quick because the infrared thermometer is used for acquiring the material temperature, the water amount adjusting process is quick, and the service life of the slag discharging belt conveyor is prolonged; however, by using the patent, the spray water quantity is controlled according to the slag discharging temperature on the belt, and the cooling of the blast furnace slag flushing box, which is caused by water interruption, entering the belt is delayed because of the high Wen Gongzha, and the belt is burnt out when the spraying operation occurs.
Disclosure of Invention
The utility model provides a water cooling structure for preventing a red slag belt from being burned, which is characterized in that spray water is introduced into a belt corridor to cool the belt by installing a spray water inlet pipeline and a spray pipeline; the temperature of the water slag mixture entering the slag flushing box is measured by the temperature measuring instrument, the water is cut off before the slag flushing box is interlocked with the electric control valve, and red slag directly enters the slag flushing box without being cooled and is conveyed to the belt, so that the belt is effectively cooled by the spraying pipeline, the fire disaster of a belt corridor is avoided, and the accident loss is reduced; the device can be modified on the basis of the original system, has small modification amount and is easy to realize and popularize.
In order to achieve the above purpose, the utility model is realized by adopting the following technical scheme:
the water cooling structure for preventing the red slag from being burned comprises a slag flushing and punching box, a rotary drum cleaning pipeline and a slag flushing belt, wherein the slag flushing and punching box is connected with the rotary drum, the rotary drum is connected with the slag flushing belt in a belt corridor, and the rotary drum cleaning pipeline is arranged above the rotary drum; the device also comprises a temperature measuring instrument, a spraying water inlet pipeline, a spraying pipeline and an electric control valve, wherein the temperature measuring instrument is arranged at the slag flushing inlet of the slag flushing and making box, the spraying water inlet pipeline is connected with the spraying pipeline, the spraying pipeline is arranged above the slag flushing belt, the spraying pipeline is perpendicular to the running direction of the slag flushing belt, and the spraying water inlet pipeline is connected with the rotary drum cleaning pipeline through the electric control valve.
Furthermore, the spray pipeline adopts a DN100 caliber pipeline, the lower part of the spray pipeline is uniformly provided with holes, the hole spacing is 80-120 mm, and the hole diameter is 10-20 mm.
Further, the thermometer is interlocked with the electric signal of the electric control valve.
Compared with the prior art, the utility model has the beneficial effects that:
1) The water is cut off before the slag flushing and manufacturing box, the slag flushing can be used for effectively cooling the belt when directly entering the belt, so that the fire disaster of the belt corridor is avoided, and the accident loss is reduced;
3) The device has simple structure, can be modified on the basis of the original system, has small modification amount and is easy to realize and popularize.
Drawings
Fig. 1 is a schematic structural view of an embodiment of the present utility model.
In the figure: 1. the slag flushing device comprises a slag flushing and manufacturing box 2, a rotary drum 3, a rotary drum cleaning pipeline 4, a belt corridor 5, a thermometer 6, a spraying water inlet pipeline 7, a spraying pipeline 8, an electric control valve 9 and a PLC
Detailed Description
The following is a further description of embodiments of the utility model, taken in conjunction with the accompanying drawings:
fig. 1 is a schematic diagram of the structure of the present utility model. The utility model relates to a water cooling structure for preventing a red slag from being burned with a belt, which comprises a slag flushing and punching box 1, a rotary drum 2, a rotary drum cleaning pipeline 3, a slag flushing belt, a thermometer 5, a spraying water inlet pipeline 6, a spraying pipeline 7 and an electric control valve 8; the slag flushing and punching box 1 is connected with a rotary drum 2, the rotary drum 2 is connected with a slag flushing belt in a belt corridor 4, a rotary drum cleaning pipeline 3 is arranged above the rotary drum 2, a temperature measuring instrument 5 is arranged at an inlet before water slag flushing enters the slag flushing and punching box 1, and signal lines of the temperature measuring instrument 5 and an electric control valve 8 are connected to a PLC9; the spray water inlet pipeline 6 is connected with a spray pipeline 7, the spray pipeline 7 is arranged above the slag flushing belt, the spray pipeline 7 is perpendicular to the running direction of the slag flushing belt, the spray water inlet pipeline 6 is connected with the drum cleaning pipeline 3 through an electric control valve 8, the spray pipeline 7 adopts a DN100 caliber pipeline, holes are uniformly formed in the lower portion of the spray pipeline 7, the hole forming interval is 80-120 mm, and the hole opening diameter is 10-20 mm.
The utility model relates to a water cooling structure for preventing a belt from being braised with red slag, which comprises the following working principles: the temperature detector 5 arranged at the slag flushing inlet of the slag flushing and punching box 1 detects the temperature of a slag water mixture, the temperature detected by the temperature detector 5 is interlocked with the switching signal of the electric control valve 8 in the PLC, when the opening limiting temperature of the electric control valve 8 is detected, the electric control valve 8 is opened, the spray pipeline 7 sprays, spray water is taken from drum cleaning water, and when the belt runs, the whole belt is cooled; when the temperature detection reaches the closing limit temperature of the electric control valve 8, the electric control valve 8 is closed, and the cooling process is completed.
The following examples are given by way of illustration of detailed embodiments and specific procedures based on the technical scheme of the present utility model, but the scope of the present utility model is not limited to the following examples. The methods used in the examples described below are conventional methods unless otherwise specified.
[ example ]
As shown in fig. 1, in the water cooling structure for preventing the belt from being braised with red slag, a temperature measuring instrument 5 is arranged at the slag inlet of a slag flushing and punching box 1, and detects the slag-water mixing temperature; the spraying water inlet pipeline 6 is connected with a spraying pipeline 7, and is arranged above the slag flushing belt, the spraying pipeline 7 is perpendicular to the running direction of the slag flushing belt, and the spraying water inlet pipeline 6 is connected with the drum cleaning pipeline 3 through an electric control valve 8; spray water in the spray water inlet pipeline 3 is taken from drum cleaning water, the water pressure is 0.5MPa, the spray pipeline 7 is DN100 caliber, holes are uniformly formed in the lower part, the distance is 100mm, the diameter of the hole is 15mm, the spray pipeline 7 is perpendicular to the running direction of the belt, and the whole belt is cooled during the running of the belt.
The signal lines of the temperature measuring instrument 5 and the electric control valve 8 are connected to the PLC9, the temperature measured by the temperature measuring instrument 5 and the switching signal of the electric control valve 8 are interlocked in the PLC, when the temperature measuring instrument 5 detects the opening limiting temperature of the electric control valve 8, the electric control valve 8 is opened, the spraying pipeline 7 sprays, and when the temperature measuring instrument 5 detects that the closing limiting temperature of the electric control valve 8 is reached, the electric control valve 8 is closed, and the cooling process is completed.
Claims (3)
1. The water cooling structure for preventing the red slag from being burned comprises a slag flushing and punching box, a rotary drum cleaning pipeline and a slag flushing belt, wherein the slag flushing and punching box is connected with the rotary drum, the rotary drum is connected with the slag flushing belt in a belt corridor, and the rotary drum cleaning pipeline is arranged above the rotary drum; the device is characterized by further comprising a temperature measuring instrument, a spraying water inlet pipeline, a spraying pipeline and an electric control valve, wherein the temperature measuring instrument is arranged at a slag flushing inlet of the slag flushing and punching box, the spraying water inlet pipeline is connected with the spraying pipeline, the spraying pipeline is arranged above the slag flushing belt, the spraying pipeline is perpendicular to the running direction of the slag flushing belt, and the spraying water inlet pipeline is connected with a rotary drum cleaning pipeline through the electric control valve.
2. The water cooling structure for preventing the red slag from being burned as set forth in claim 1, wherein the spraying pipeline adopts a DN100 caliber pipeline, the lower part of the spraying pipeline is uniformly perforated, the perforation interval is 80-120 mm, and the diameter of the orifice is 10-20 mm.
3. The water cooling structure for preventing red slag from being burned as set forth in claim 1, wherein the thermometer is electrically interlocked with the electric control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320948336.5U CN219907724U (en) | 2023-04-24 | 2023-04-24 | Water cooling structure for preventing belt from being braised with red slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320948336.5U CN219907724U (en) | 2023-04-24 | 2023-04-24 | Water cooling structure for preventing belt from being braised with red slag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219907724U true CN219907724U (en) | 2023-10-27 |
Family
ID=88431039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320948336.5U Active CN219907724U (en) | 2023-04-24 | 2023-04-24 | Water cooling structure for preventing belt from being braised with red slag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219907724U (en) |
-
2023
- 2023-04-24 CN CN202320948336.5U patent/CN219907724U/en active Active
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