CN219640326U - Blast furnace slag flushing waste heat heating emergency device - Google Patents
Blast furnace slag flushing waste heat heating emergency device Download PDFInfo
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- CN219640326U CN219640326U CN202320564444.2U CN202320564444U CN219640326U CN 219640326 U CN219640326 U CN 219640326U CN 202320564444 U CN202320564444 U CN 202320564444U CN 219640326 U CN219640326 U CN 219640326U
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- 239000002893 slag Substances 0.000 title claims abstract description 69
- 238000011010 flushing procedure Methods 0.000 title claims abstract description 66
- 238000010438 heat treatment Methods 0.000 title claims abstract description 53
- 239000002918 waste heat Substances 0.000 title claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 182
- 239000007788 liquid Substances 0.000 claims abstract description 92
- 238000001816 cooling Methods 0.000 claims abstract description 88
- 238000004891 communication Methods 0.000 claims abstract description 10
- 238000005192 partition Methods 0.000 claims description 19
- 238000005406 washing Methods 0.000 claims 10
- 230000000694 effects Effects 0.000 abstract description 15
- 238000001914 filtration Methods 0.000 description 17
- 229920000742 Cotton Polymers 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model provides a blast furnace slag flushing waste heat heating emergency device, which belongs to the technical field of heating emergency, and comprises: the device comprises a bottom filter tank, a cooling tower, a heat exchanger, a control valve and an emergency water pump. The heat exchanger is communicated with the bottom filter through a liquid inlet pipe and is communicated with the cooling tower through a liquid outlet pipe; the heat exchanger receives the water discharged from the bottom filter tank and discharges the water after heat exchange back to the cooling tower. The control valve is arranged on the liquid inlet pipe and used for controlling the opening or closing of the liquid inlet pipe. The emergency water pump is communicated between the cooling tower and the liquid inlet pipe, and a communication port of the emergency water pump and the liquid inlet pipe is positioned between the control valve and the heat exchanger. The emergency water pump is used for conveying water in the cooling tower into the heat exchanger after the control valve is closed; the heat exchanger is supplied with water having a certain temperature by a cooling tower. The blast furnace slag flushing waste heat heating emergency device provided by the utility model has the advantages that the water with a certain temperature in the cooling tower is introduced into the heat exchanger, so that the heating effect is ensured, and the problem of too fast temperature reduction in the heat exchanger is avoided to a certain extent.
Description
Technical Field
The utility model belongs to the technical field of heating emergency, and particularly relates to a blast furnace slag flushing waste heat heating emergency device.
Background
Under the strategy of Chinese carbon neutralization and carbon peak, the metallurgical industry is continuously improved in the aspects of energy conservation, consumption reduction and comprehensive utilization of resources. At present, the energy resource optimization utilization, the development of recycling economy and the waste heat utilization become the necessary trend of the development of iron and steel enterprises, the blast furnace slag temperature is up to 1400-1500 ℃, the blast furnace slag treatment mode in the current industry is mostly water quenching treatment, the water temperature of slag flushing water for heat exchange with the blast furnace slag is 65-80 ℃, and the slag flushing water belongs to high-quality waste heat resources. Through reforming the blast furnace slag flushing water, the blast furnace slag flushing water exchanges heat with a civil heating heat exchange system, and the waste heat utilization effect is fully exerted in heating seasons.
However, as the slag is treated by adopting the bottom filtering process, the slag water of the blast furnace contains a certain amount of slag cotton, and in the process of slag-water separation, the slag cotton easily blocks the filtering pores in the filtering layer, so that the slag layer is hardened, the filtering speed and the filtering efficiency of the hardened filtering layer are reduced, and the production of a slag-water system cannot be smoothly carried out. When the bottom filtering effect is poor, the water pumping quantity of the hot water pump is influenced, so that the heating and heat exchanging effects are influenced. At this time, the heating temperature is reduced rapidly due to the fact that the hot water amount supplied by the hot water pump to the heating heat exchanger is small, and the heating effect is affected.
Disclosure of Invention
The utility model aims to provide a blast furnace slag flushing waste heat heating emergency device, and aims to solve the problems that when the water pumping quantity of a hot water pump is small, the heating temperature drops faster and the heating effect is affected.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a blast furnace slag flushing waste heat heating emergency device, includes:
the bottom filter tank is used for realizing heat exchange between the high-temperature slag and water;
the cooling tower is communicated with the bottom filter tank and used for cooling high-temperature water discharged by the bottom filter tank;
the heat exchanger is communicated with the bottom filter tank through a liquid inlet pipe and is communicated with the cooling tower through a liquid outlet pipe; the heat exchanger receives the water discharged by the bottom filter tank and discharges the water subjected to heat exchange back to the cooling tower;
the control valve is arranged on the liquid inlet pipe and used for controlling the opening or closing of the liquid inlet pipe;
the emergency water pump is communicated between the cooling tower and the liquid inlet pipe, and a communication port of the emergency water pump and the liquid inlet pipe is positioned between the control valve and the heat exchanger;
the emergency water pump is used for conveying water in the cooling tower into the heat exchanger after the control valve is closed; the heat exchanger is supplied with water having a certain temperature by the cooling tower.
In one possible implementation manner, a hot water pump is arranged at the liquid outlet of the bottom filter tank, and the hot water pump is used for conveying water in the bottom filter tank to the cooling tower.
In one possible implementation manner, a communicating pipe is communicated between the hot water pump and the liquid inlet pipe, and the communicating pipe is used for guiding water discharged by the hot water pump to the cooling tower; and a stop valve is arranged on the communicating pipe.
In one possible implementation manner, the cooling tower is provided with a liquid outlet and a liquid inlet, the liquid outlet pipe is communicated with the liquid inlet, the emergency water pump is communicated with the liquid outlet, a partition plate is arranged on the inner wall of the cooling tower, and the partition plate is arranged between the liquid outlet and the liquid inlet and used for preventing liquid discharged from the liquid outlet pipe from directly flowing into the liquid inlet pipe.
In one possible implementation manner, one end of the partition plate is fixed on the inner wall of the cooling tower, and the other end of the partition plate and the inner wall of the cooling tower on the other side are arranged at intervals to form a circulation channel.
In one possible implementation, the cooling tower is communicated with a flushing pump, and the flushing pump is communicated with the bottom filter tank and used for draining water in the cooling tower into the bottom filter tank to back flush the bottom filter tank.
In one possible implementation, the number of the hot water pump and the rinsing pump is plural.
In one possible implementation manner, the front end of the bottom filter tank is communicated with a blast furnace body, and the flushing pump is communicated with the blast furnace body through a slag passing pipe.
In one possible implementation manner, the flushing pump is the emergency water pump, the flushing pump is communicated with the liquid inlet pipe through a water supply pipe, and a regulating valve is installed on the water supply pipe and is used for changing the flow direction of liquid discharged by the flushing pump.
In one possible implementation, the communication port between the water supply pipe and the liquid inlet pipe is located between the control valve and the heat exchanger.
The blast furnace slag flushing waste heat heating emergency device provided by the utility model has the beneficial effects that: compared with the prior art, the blast furnace slag flushing waste heat heating emergency device realizes heat exchange between high-temperature slag and water in the bottom filter tank, the cooling tower is communicated with the bottom filter tank, the heat exchanger is communicated with the bottom filter tank through the liquid inlet pipe, and is communicated with the cooling tower through the liquid outlet pipe. The emergency water pump is communicated between the cooling tower and the liquid inlet pipe, and a control valve is arranged on the liquid inlet pipe. The communication port of the emergency water pump and the liquid inlet pipe is positioned between the control valve and the heat exchanger.
When the water cooling device is in practical application, the heat exchange between slag and water is carried out through the bottom filter, after the heat exchange is finished, one part of water with a certain temperature enters the cooling tower to be cooled subsequently, and the other part of water flows into the heat exchanger to achieve the heating effect. When the filter is in a normal state, water in the bottom filter tank flows into the cooling tower and the heat exchanger through the control valve, and water discharged by the bottom filter tank provides heat for the heat exchanger. When an emergency occurs, the control valve cuts off the circulation between the bottom filter tank and the heat exchanger, and water with a certain temperature in the cooling tower is introduced into the heat exchanger through the emergency water pump, so that a heating effect is ensured, and the problem that the temperature in the heat exchanger is reduced too quickly is avoided to a certain extent.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a blast furnace slag-flushing waste heat heating emergency device according to an embodiment of the utility model;
fig. 2 is a schematic structural diagram of a blast furnace slag-flushing waste heat heating emergency device according to a second embodiment of the utility model.
In the figure: 1. a blast furnace body; 2. a bottom filter tank; 3. a cooling tower; 4. a heat exchanger; 5. a stop valve; 6. a hot water pump; 7. a flushing pump; 8. a communicating pipe; 9. a control valve; 10. a liquid inlet pipe; 11. a liquid outlet pipe; 12. a water supply pipe; 13. an emergency water pump.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. 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.
Referring to fig. 1 and 2, the blast furnace slag flushing waste heat heating emergency device provided by the utility model is now described. The blast furnace slag flushing waste heat heating emergency device comprises: the bottom filter tank 2, the cooling tower 3, the heat exchanger 4, the control valve 9 and the emergency water pump 13. The bottom filter tank 2 is used for realizing heat exchange between the high-temperature slag and water. The cooling tower 3 is communicated with the bottom filter tank 2 and is used for cooling the high-temperature water discharged by the bottom filter tank 2. The heat exchanger 4 is communicated with the bottom filter tank 2 through a liquid inlet pipe 10 and is communicated with the cooling tower 3 through a liquid outlet pipe 11; the heat exchanger 4 receives water discharged from the bottom filter tank 2 and discharges the heat-exchanged water back into the cooling tower 3. The control valve 9 is installed on the liquid inlet pipe 10 for controlling the opening or closing of the liquid inlet pipe 10. The emergency water pump 13 is communicated between the cooling tower 3 and the liquid inlet pipe 10, and a communication port of the emergency water pump 13 and the liquid inlet pipe 10 is positioned between the control valve 9 and the heat exchanger 4. The emergency water pump 13 is used for conveying water in the cooling tower 3 into the heat exchanger 4 after the control valve 9 is closed; the heat exchanger 4 is supplied with water having a certain temperature by the cooling tower 3.
The blast furnace slag flushing waste heat heating emergency device provided by the utility model has the beneficial effects that: compared with the prior art, in the blast furnace slag flushing waste heat heating emergency device, heat exchange between high-temperature slag and water is realized in the bottom filter tank 2, the cooling tower 3 is communicated with the bottom filter tank 2, the heat exchanger 4 is communicated with the bottom filter tank 2 through the liquid inlet pipe 10, and is communicated with the cooling tower 3 through the liquid outlet pipe 11. The emergency water pump 13 is communicated between the cooling tower 3 and the liquid inlet pipe 10, and a control valve 9 is arranged on the liquid inlet pipe 10. The communication port of the emergency water pump 13 and the liquid inlet pipe 10 is positioned between the control valve 9 and the heat exchanger 4.
In practical application, the heat exchange between slag and water is carried out through the bottom filter tank 2, after the heat exchange is finished, one part of water with a certain temperature enters the cooling tower 3 to be cooled subsequently, and the other part of water flows into the heat exchanger 4 to achieve the heating effect. When in a normal state, the water in the bottom filter tank 2 flows into the cooling tower 3 and the heat exchanger 4 through the control valve 9, and the water discharged by the bottom filter tank 2 supplies heat to the heat exchanger 4. When an emergency occurs, the control valve 9 cuts off the circulation between the bottom filter tank 2 and the heat exchanger 4, and water with a certain temperature in the cooling tower 3 is introduced into the heat exchanger 4 through the emergency water pump 13, so that the heating effect is ensured, and the problem that the temperature in the heat exchanger 4 is reduced too quickly is avoided to a certain extent.
Under the strategy of Chinese carbon neutralization and carbon peak, the metallurgical industry level needs to be continuously improved in the aspects of energy conservation, consumption reduction and comprehensive utilization of resources, and the energy resource optimization utilization, the development of circular economy and the waste heat utilization are enhanced to become the necessary trend of the development of iron and steel enterprises.
In some embodiments of the blast furnace slag flushing waste heat heating emergency device provided by the utility model, referring to fig. 1 and 2, a hot water pump 6 is arranged at a liquid outlet of the bottom filter tank 2, and the hot water pump 6 is used for conveying water in the bottom filter tank 2 to the cooling tower 3.
The technology has been developed and put into use in the technology of fully utilizing the waste heat of blast furnace slag, the temperature of the blast furnace slag is up to 1400-1500 ℃, the current treatment mode of blast furnace slag in industry is mostly water quenching mode treatment, the water temperature of slag flushing water which exchanges heat with the blast furnace slag is 65-80 ℃, and the slag flushing water belongs to high-quality waste heat resources. In order to save energy, the blast furnace slag flushing water is reformed, and is subjected to heat exchange with a civil heating heat exchange system, so that the waste heat utilization effect is fully exerted in heating seasons. According to the utility model, the slag is treated by adopting a bottom filtering process, a certain amount of slag cotton is contained in the slag water of the blast furnace, and in the slag water separation process, the slag cotton is easy to block the filtering pores in the filtering layer, so that the slag layer is hardened, the filtering speed and the filtering efficiency are reduced by the hardened filtering layer, and the production of a slag water system cannot be smoothly carried out. When the bottom filtering effect is poor, the water pumping quantity of the hot water pump 6 is influenced, so that the heating and heat exchanging effects are influenced, and the bottom filter tank 2 needs to be cleaned, namely the bottom filter tank 2 is closed. Closing the bottom filter tank 2 temporarily fails to supply hot water to the heat exchanger 4.
The front end of the bottom filter tank 2 is communicated with a blast furnace body 1, the blast furnace body 1 transmits high-temperature slag into the bottom filter tank 2, the heat of the slag is absorbed by water in the bottom filter tank 2 to form high-temperature water, a plurality of hot water pumps 6 are arranged between the bottom filter tank 2 and the cooling tower 3 in order to transmit the high-temperature water into the cooling tower 3, the hot water pumps 6 can transmit the water in the bottom filter tank 2 into the cooling tower 3, more importantly, a liquid inlet pipe 10 is communicated with the hot water pumps 6, namely, the hot water pumps 6 can transmit the water in the bottom filter tank 2 into the cooling tower 3 and the heat exchanger 4 simultaneously.
In some embodiments of the blast furnace slag flushing waste heat heating emergency device provided by the utility model, referring to fig. 1 and 2, a communicating pipe 8 is communicated between a hot water pump 6 and a liquid inlet pipe 10, and the communicating pipe 8 is used for guiding water discharged by the hot water pump 6 to a cooling tower 3; a shutoff valve 5 is mounted on the communication pipe 8.
Under normal conditions, the stop valve 5 is in an open state, the flushing pump 7 is not in an operating state, and the water in the bottom filter tank 2 is conveyed into the cooling tower 3 and the heat exchanger 4 under the action of the hot water pump 6. When a blockage occurs in the bottom filter tank 2 and the water outlet of the hot water pump 6 is lowered, the hot water pump 6 is turned off, the cut-off valve cuts off the communicating pipe 8, at this time, the emergency water pump 13 is turned on, and the emergency water pump 13 conveys the water in the cooling tower 3 into the heat exchanger 4.
In some embodiments of the blast furnace slag flushing waste heat heating emergency device provided by the utility model, referring to fig. 1 and 2, a liquid outlet and a liquid inlet are arranged on a cooling tower 3, a liquid outlet pipe 11 is communicated with the liquid inlet, an emergency water pump 13 is communicated with the liquid outlet, a partition plate is arranged on the inner wall of the cooling tower 3, and the partition plate is arranged between the liquid outlet and the liquid inlet and is used for preventing liquid discharged from the liquid outlet pipe 11 from directly flowing into a liquid inlet pipe 10.
The water in the water pool of the cooling tower 3 is pumped by the emergency water pump 13 to enter the heat exchanger 4, and the liquid outlet pipe 11 and the liquid inlet pipe 10 of the heat exchanger 4 are spaced apart from each other, so that the water after heat exchange and temperature reduction enters the circulation system again, and the heating effect is affected.
In order to achieve the technical effect, a partition plate can be fixed in the cooling tower 3, the partition plate separates the liquid outlet from the liquid inlet, more importantly, the inner cavity of the cooling tower 3 is formed into an approximate U-shaped structure by arranging the partition plate, and water discharged from the liquid outlet pipe 11 needs to flow for a long distance to enter the liquid inlet pipe 10 through the liquid outlet, so that the water entering the heat exchanger 4 is guaranteed to have a certain temperature.
In some embodiments of the blast furnace slag flushing waste heat heating emergency device provided by the utility model, referring to fig. 1 and 2, one end of a partition plate is fixed on the inner wall of the cooling tower 3, and the other end of the partition plate and the inner wall of the cooling tower 3 on the other side are arranged at intervals to form a circulation channel.
To describe the state of the partition plate in more detail, first, the partition plate may be disposed along the meridian line of the cooling tower 3, one end of the partition plate needs to be fixed on the inner wall of one side of the cooling tower, and the other end of the partition plate is disposed at a certain distance from the inner wall of the other side of the cooling tower 3, so as to form a circulation channel.
It is ensured that the water temperature at the side of the inlet pipe 10 needs to be higher than the water temperature at the side of the outlet pipe 11, so that during daily use, the high temperature water discharged from the hot water pump 6 is injected into the side of the inlet pipe 10, whereas the water for cleaning and back flushing, which is required to be discharged from the cooling tower 3, is usually discharged from the side of the outlet pipe 11.
It should be noted in particular that the emergency water pump 13 according to the utility model is only used for the supply of hot water to the heat exchanger 4 in the event of an emergency.
In some embodiments of the blast furnace slag flushing waste heat heating emergency device provided by the utility model, referring to fig. 1 and 2, a flushing pump 7 is communicated with a cooling tower 3, and the flushing pump 7 is communicated with a bottom filter tank 2 and is used for draining water in the cooling tower 3 into the bottom filter tank 2 to back flush the bottom filter tank 2.
The company adopts the bottom filtration technology to treat slag, and slag cotton is contained to a certain amount in the blast furnace slag flushing water, and in the slag water separation process, the slag cotton is easy to block the filter pores in the filter layer, so that the slag layer is hardened, the filtration speed and the filtration efficiency of the hardened filter layer are reduced, and the production of a slag water system cannot be smoothly carried out.
In order to avoid blockage caused by impurities such as slag cotton, the bottom filter tank 2 is required to be backwashed through the cooling tower 3, for this purpose, a plurality of flushing pumps 7 are communicated with the cooling tower 3, the plurality of flushing pumps 7 are used for conveying water in the cooling tower 3 to a water outlet pipe of the bottom filter tank 2, and the tail end of the water outlet pipe is communicated with a hot water pump 6.
In the utility model, the hot water pump 6 not only conveys the water in the bottom filter tank 2 into the cooling tower 3, but also can convey the hot water into the heat exchanger 4 when the heat exchanger 4 is needed to heat, namely, the hot water pump 6 can convey the water into two components under normal conditions.
When an abnormal state occurs, the control valve 9 cuts off the liquid inlet pipe 10, at the moment, the hot water pump 6 cannot discharge water in the bottom filter tank 2, and the emergency water pump 13 conveys water in the cooling tower 3 into the heat exchanger 4.
In some embodiments of the blast furnace slag flushing waste heat heating emergency device provided by the utility model, referring to fig. 1 and 2, the number of the hot water pumps 6 and the number of the flushing pumps 7 are all multiple, and through the arrangement, effective liquid conveying is ensured.
In some embodiments of the blast furnace slag flushing waste heat heating emergency device provided by the utility model, referring to fig. 1 and 2, the front end of the bottom filter tank 2 is communicated with a blast furnace body 1, and a flushing pump 7 is communicated with the blast furnace body 1 through a slag flushing pipe. The flushing pump 7 conveys water in the cooling tower 3 into the blast furnace body 1 through the slag flushing pipe, thereby realizing back flushing.
In some embodiments of the blast furnace slag flushing waste heat heating emergency device provided by the utility model, referring to fig. 2, the flushing pump 7 is an emergency water pump 13, the flushing pump 7 is communicated with the liquid inlet pipe 10 through a water supply pipe 12, and the water supply pipe 12 is provided with an adjusting valve for changing the flow direction of liquid discharged by the flushing pump 7.
The emergency water pump 13 is used in emergency, if one emergency water pump 13 is purchased as a standby, the purchase cost is obviously increased, for the reasons, the corresponding number of the flushing pumps 7 are set as the emergency water pumps 13, and when an emergency occurs, the flushing pumps 7 convey water in the cooling tower 3 to the liquid inlet pipe 10, so that hot water is provided for the heat exchanger 4, and when back flushing is needed, the water flowing out of the flushing pumps 7 flows into the water outlet pipe to back flush the bottom filter tank 2 through changing the corresponding regulating valves.
In some embodiments of the blast furnace slag flushing waste heat heating emergency device provided by the utility model, referring to fig. 2, a communication port between a water supply pipe 12 and a liquid inlet pipe 10 is located between the control valve 9 and the heat exchanger 4. By the above arrangement, the emergency water pump 13 is caused to convey the water in the cooling tower 3 into the heat exchanger 4.
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. Blast furnace slag flushing waste heat heating emergency device, which is characterized by comprising:
the bottom filter tank is used for realizing heat exchange between the high-temperature slag and water;
the cooling tower is communicated with the bottom filter tank and used for cooling high-temperature water discharged by the bottom filter tank;
the heat exchanger is communicated with the bottom filter tank through a liquid inlet pipe and is communicated with the cooling tower through a liquid outlet pipe; the heat exchanger receives the water discharged by the bottom filter tank and discharges the water subjected to heat exchange back to the cooling tower;
the control valve is arranged on the liquid inlet pipe and used for controlling the opening or closing of the liquid inlet pipe;
the emergency water pump is communicated between the cooling tower and the liquid inlet pipe, and a communication port of the emergency water pump and the liquid inlet pipe is positioned between the control valve and the heat exchanger;
the emergency water pump is used for conveying water in the cooling tower into the heat exchanger after the control valve is closed; the heat exchanger is supplied with water having a certain temperature by the cooling tower.
2. The blast furnace slag-washing waste heat heating emergency device according to claim 1, wherein a hot water pump is arranged at a liquid outlet of the bottom filter tank, and the hot water pump is used for conveying water in the bottom filter tank to the cooling tower.
3. The blast furnace slag-washing waste heat heating emergency device according to claim 2, wherein a communicating pipe is communicated between the hot water pump and the liquid inlet pipe, and the communicating pipe is used for guiding water discharged by the hot water pump to the cooling tower; and a stop valve is arranged on the communicating pipe.
4. The blast furnace slag-washing waste heat heating emergency device according to claim 1, wherein a liquid outlet and a liquid inlet are formed in the cooling tower, the liquid outlet pipe is communicated with the liquid inlet, the emergency water pump is communicated with the liquid outlet, a partition plate is arranged on the inner wall of the cooling tower, and the partition plate is arranged between the liquid outlet and the liquid inlet and is used for preventing liquid discharged from the liquid outlet pipe from directly flowing into the liquid inlet pipe.
5. The blast furnace slag-washing waste heat heating emergency device as set forth in claim 4, wherein one end of the partition board is fixed on the inner wall of the cooling tower, and the other end of the partition board is arranged at a certain interval with the inner wall of the cooling tower on the other side to form a circulation channel.
6. The blast furnace slag-washing waste heat heating emergency device as set forth in claim 2, wherein the cooling tower is communicated with a flushing pump, and the flushing pump is communicated with the bottom filter tank and is used for draining water in the cooling tower into the bottom filter tank to back flush the bottom filter tank.
7. The blast furnace slag-washing waste heat heating emergency device as set forth in claim 6, wherein the number of the hot water pump and the number of the flushing pumps are all plural.
8. The blast furnace slag-washing waste heat heating emergency device according to claim 6, wherein the front end of the bottom filter tank is communicated with a blast furnace body, and the flushing pump is communicated with the blast furnace body through a slag-washing pipe.
9. The blast furnace slag-washing waste heat heating emergency device according to claim 6, wherein the flushing pump is the emergency water pump, the flushing pump is communicated with the liquid inlet pipe through a water supply pipe, and the water supply pipe is provided with an adjusting valve for changing the flow direction of liquid discharged by the flushing pump.
10. The blast furnace slag-washing waste heat heating emergency device as set forth in claim 9, wherein a communication port between the water supply pipe and the liquid inlet pipe is located between the control valve and the heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320564444.2U CN219640326U (en) | 2023-03-21 | 2023-03-21 | Blast furnace slag flushing waste heat heating emergency device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320564444.2U CN219640326U (en) | 2023-03-21 | 2023-03-21 | Blast furnace slag flushing waste heat heating emergency device |
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| CN219640326U true CN219640326U (en) | 2023-09-05 |
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|---|---|---|---|
| CN202320564444.2U Active CN219640326U (en) | 2023-03-21 | 2023-03-21 | Blast furnace slag flushing waste heat heating emergency device |
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| Country | Link |
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| CN (1) | CN219640326U (en) |
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- 2023-03-21 CN CN202320564444.2U patent/CN219640326U/en active Active
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