CN220670229U - Device for simultaneously heating heat conduction oil and supplying steam by flue gas waste heat of electric calcining furnace - Google Patents
Device for simultaneously heating heat conduction oil and supplying steam by flue gas waste heat of electric calcining furnace Download PDFInfo
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- CN220670229U CN220670229U CN202320772512.4U CN202320772512U CN220670229U CN 220670229 U CN220670229 U CN 220670229U CN 202320772512 U CN202320772512 U CN 202320772512U CN 220670229 U CN220670229 U CN 220670229U
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Abstract
The utility model discloses a device for simultaneously heating heat conduction oil and supplying steam by using flue gas waste heat of an electric calcining furnace, which comprises a flue gas burning system and a waste heat utilization system of flue gas chemical energy, wherein the rear end of a high-temperature resistant electric flue gas reversing valve in the flue gas burning system is sequentially connected with a flue gas explosion-proof valve, a flue gas cooler and an incinerator through a flue, the rear end of the incinerator in the waste heat utilization system of the flue gas chemical energy is respectively connected with a waste heat conduction oil furnace and a waste heat steam boiler through a flue, and the rear end of the waste heat conduction oil furnace is sequentially connected with a high-temperature induced draft fan, the waste heat steam boiler, an economizer and a total induced draft fan through the flue. According to the utility model, the waste heat utilization system of the flue gas incineration system and the flue gas chemical energy is used for heating the heat conduction oil and supplying steam, so that the flue gas waste heat generated by the electric calcining furnace is fully utilized, and meanwhile, the flue gas waste heat is further recycled through the heat exchange system, so that the energy is saved, and the environmental pollution is reduced.
Description
Technical Field
The utility model relates to a device for simultaneously heating heat conduction oil and supplying steam by using flue gas waste heat of an electric calcining furnace, and belongs to the technical field of flue gas waste heat utilization of electric calcining furnaces in the nonferrous industry.
Background
The colored industry can utilize an electric calcining furnace to calcine the anthracite, and the calcined anthracite can be prepared into corresponding products according to the needs. The electric calcination flue gas has the characteristics of high explosion risk level, small flue gas amount, high flue gas temperature and the like, so that great difficulty exists in application. The prior projects are mostly solved by arranging an ignition device at the top of the electric calcination factory building and directly igniting smoke to be discharged to the air, thus not only generating energy waste, but also causing environmental pollution.
The electrical calcination process in the colored industry is often located at the front end of the overall process, and subsequent processes may require heating of the heat transfer oil and steam supply as required by the project. If the waste heat utilization of the electric calcination flue gas is organically combined with the heat utilization requirement of the whole flow, the method has positive significance for energy conservation and environmental protection.
Disclosure of Invention
In order to solve the technical problems, the utility model provides a device for simultaneously heating heat conduction oil and supplying steam by using flue gas waste heat of an electric calcining furnace, and the device provides the heated heat conduction oil and the heated steam supply for use, thereby saving energy and reducing environmental pollution.
The utility model is composed as follows: the utility model provides a device of electric calciner flue gas waste heat while heating conduction oil and supply steam, includes flue gas incineration system and flue gas chemical energy's waste heat utilization system, in the flue gas incineration system, high temperature resistant electric flue gas reversing valve rear end loops through flue connection flue gas explosion-proof valve, flue gas cooler and incinerator, in the flue gas chemical energy's waste heat utilization system, the incinerator rear end passes through the flue respectively and connects waste heat conduction oil stove and waste heat steam boiler, and waste heat conduction oil stove rear end loops through flue connection high temperature draught fan, waste heat steam boiler, economizer, total draught fan.
Further, the upper end of the high-temperature-resistant electric smoke reversing valve is connected with an electric calcining furnace direct-discharge chimney, smoke is discharged from the electric calcining furnace and enters the smoke explosion-proof valve through a flue, and the high-temperature-resistant electric smoke reversing valve 103 is powered by UPS.
Further, the incinerator is connected with a blower, and a combustible gas on-line monitoring device is arranged in front of the burner group valve.
Further, the lower end of the waste heat steam boiler is connected with a gas introducing device or a user end, the front end of the gas introducing device is provided with a butterfly valve a, the front end of the user end is provided with a butterfly valve b, the rear end of the gas introducing device is connected with the front end of the flue gas inlet of the incinerator, the waste heat steam boiler is a saturated steam boiler, and the rear wall is provided with an access door and an explosion-proof door.
Further, the device for simultaneously heating heat conduction oil and supplying steam by using flue gas waste heat of the electric calcining furnace further comprises a controller, a power supply module, a temperature sensor, a frequency converter a, a frequency converter b and a negative pressure sensor, wherein the temperature sensor is arranged on the waste heat conduction oil furnace, the negative pressure sensor is arranged on the electric calcining furnace, the controller is respectively electrically connected with the power supply module, the temperature sensor, the frequency converter a, the frequency converter b and the negative pressure sensor, and the frequency converter a and the frequency converter b are respectively electrically connected with a high-temperature induced draft fan and a total induced draft fan.
Further, the rear end of the total induced draft fan is connected with a chimney through a flue.
Further, the device for simultaneously heating heat conduction oil and supplying steam by using flue gas waste heat of the electric calcining furnace further comprises a heat exchange system, wherein the flue gas cooler, the economizer and the waste heat steam boiler are connected with the heat exchange system, the circulating water tank is sequentially connected with the circulating water pump, the flue gas cooler, the water supply tank, the water supply pump, the economizer and the waste heat steam boiler through water pipes, the flue gas cooler adopts a water jacket type heat exchanger, and the flue gas temperature at the outlet side of the flue gas cooler is less than or equal to 100 ℃.
Due to the adoption of the technical scheme, the utility model has the advantages that: according to the utility model, the waste heat utilization system of the flue gas incineration system and the flue gas chemical energy is used for heating the heat conduction oil and supplying steam, so that the flue gas waste heat generated by the electric calcining furnace is fully utilized, and meanwhile, the flue gas waste heat is further recycled through the heat exchange system, so that the energy is saved, and the environmental pollution is reduced.
Drawings
Fig. 1 is a schematic view of the structure of the device of the present utility model.
FIG. 2 is a schematic diagram of a control system connection according to the present utility model.
Reference numerals illustrate: the system comprises a 1-flue gas incineration system, a 101-electric calciner, a 102-flue, a 103-high temperature resistant electric flue gas reversing valve, a 104-electric calciner direct exhaust chimney, a 105-flue gas explosion-proof valve, a 106-flue gas cooler, a 107-gas introduction device, a 108-incinerator, a 109-blower, a 110-power module, a111 frequency converter a, a 112-temperature sensor, a 113-frequency converter b, a 114-negative pressure sensor, a 115-controller, a 2-waste heat utilization system, a 201-waste heat conduction oil furnace, a 202-high temperature induced draft fan, a 203-waste heat steam boiler, a 204-user end, a 205-economizer, a 206-total induced draft fan, a 207-chimney, a 301-circulating water pump, a 302-circulating water tank, a 303-water pipe, a 304-water feed tank and a 305-water feed pump.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be further described in detail with reference to the accompanying drawings and examples.
Examples
As shown in fig. 1, the device for simultaneously heating heat conduction oil and supplying steam by using flue gas waste heat of an electric calcining furnace comprises a flue gas burning system 1 and a waste heat utilization system 2 of flue gas chemical energy, wherein in the flue gas burning system 1, the rear end of a high-temperature-resistant electric flue gas reversing valve 103 is sequentially connected with a flue gas explosion-proof valve 105, a flue gas cooler 106 and an incinerator 108 through a flue 102, in the waste heat utilization system 2 of the flue gas chemical energy, the rear end of the incinerator 108 is respectively connected with a waste heat conduction oil furnace 201 and a waste heat steam boiler 203 through the flue 102, and the rear end of the waste heat conduction oil furnace 201 is sequentially connected with a high-temperature induced draft fan 202, the waste heat steam boiler 203, a coal economizer 205 and a total induced draft fan 206 through the flue 102. The upper end of the high-temperature-resistant electric flue gas reversing valve 103 is connected with an electric calciner straight exhaust chimney 104, and flue gas is discharged from the electric calciner 101 and enters a flue gas explosion-proof valve 105 through a flue 102. The incinerator 108 is connected to a blower 109. The lower end of the waste heat steam boiler 203 is connected with a gas introducing device 107 or a user end 204, a butterfly valve a208 is arranged at the front end of the gas introducing device 107, a butterfly valve b209 is arranged at the front end of the user end 204, and the rear end of the gas introducing device 107 is connected in front of a flue gas inlet of the incinerator 108. The rear end of the main induced draft fan 206 is connected with a chimney 207 through the flue 102.
The device for simultaneously heating heat conduction oil and supplying steam by using flue gas waste heat of the electric calcining furnace further comprises a controller 115, a power supply module 110, a temperature sensor 112, a frequency converter a111, a frequency converter b113 and a negative pressure sensor 114, wherein the temperature sensor 112 is arranged on the waste heat conduction oil furnace 201, the negative pressure sensor 114 is arranged on the electric calcining furnace 101, the controller 115 is respectively electrically connected with the power supply module 110, the temperature sensor 112, the frequency converter a111, the frequency converter b113 and the negative pressure sensor 114, and the frequency converter a111 and the frequency converter b113 are respectively electrically connected with a high-temperature induced draft fan 202 and a total induced draft fan 206. Therefore, the output power of the high-temperature induced draft fan 202 and the total induced draft fan 206 can be controlled in a variable frequency manner through the pressure value and the temperature value of the waste heat conduction oil furnace 201 and the pressure value of the electric calciner 101 and the temperature value of the waste heat conduction oil furnace 201 respectively acquired by the negative pressure sensor 114 and the temperature sensor 112, so as to achieve the full utilization of heat.
The device for simultaneously heating heat conduction oil and supplying steam by using flue gas waste heat of the electric calcining furnace further comprises a heat exchange system 3, wherein the flue gas cooler 106, the economizer 205 and the waste heat steam boiler 203 are connected with the heat exchange system 3, the circulating water tank 302 is sequentially connected with the circulating water pump 301, the flue gas cooler 106, the water supply tank 304, the water supply pump 305, the economizer 205 and the waste heat steam boiler 203 through water pipes 303, the flue gas cooler 106 adopts a water jacket type heat exchanger, and the flue gas temperature at the outlet side is less than or equal to 100 ℃.
The working principle of the utility model is as follows:
the working principle of the device for simultaneously heating heat conduction oil and supplying steam by using the flue gas waste heat of the electric calcining furnace is as follows: firstly, flue gas discharged from an electric calciner 101 is introduced into a high-temperature-resistant electric flue gas reversing valve 103 through a flue (102), then the flue gas is discharged into a flue gas explosion-proof valve 105, then the flue gas is discharged into a flue gas cooler 106 through the flue gas explosion-proof valve 105, the cooled flue gas is introduced into an incinerator 108 to burn and release heat to become high-temperature flue gas, then the high-temperature flue gas is respectively introduced into a waste heat conduction oil furnace 201 and a waste heat steam boiler 203, the waste heat conduction oil furnace 201 is heated by the flue gas introduced into the waste heat conduction oil furnace 201 and then is introduced into the waste heat steam boiler 203 through a high-temperature induced draft fan 202, steam generated by heating the waste heat steam boiler 203 through the high-temperature flue gas enters a gas introducing device 107 through a butterfly valve a208, part of steam is conveyed to a flue gas inlet front sweeping and diluted flue gas of the incinerator 108 through the gas introducing device 107, meanwhile, another part of steam is introduced into a user end 204 through a butterfly valve b209 to serve as a drying heat source of raw material coal entering a factory, the waste heat steam boiler 203 is heated, and finally the waste heat steam boiler 203 is introduced into a coal economizer 205, and finally the waste heat steam boiler 203 is conveyed to a chimney 207 to discharge air through a general draft fan 206.
In order to fully utilize the waste heat, the water in the circulating water tank 302 is firstly conveyed to the flue gas cooler 106 through the circulating water pump 301 to cool the flue gas and then is changed into high-temperature water, then the high-temperature water is conveyed to the water supply tank 304 and then is conveyed to the economizer 205 through the water supply pump 305, then the high-temperature water exchanges heat with the flue gas passing through the economizer 205, and the high-temperature water is heated again and then is led into the waste heat steam boiler 203 for supplementing the hot water of the waste heat steam boiler 203.
Claims (7)
1. The utility model provides a device of electric stove flue gas waste heat while heating conduction oil and supply steam, includes flue gas incineration system (1) and flue gas chemical energy's waste heat utilization system (2), its characterized in that: in the flue gas incineration system (1), high temperature resistant electric flue gas reversing valve (103) rear end loops through flue (102) and connects flue gas explosion-proof valve (105), flue gas cooler (106) and burns burning furnace (108), in flue gas chemical energy's waste heat utilization system (2), burn burning furnace (108) rear end and connect waste heat conduction oil stove (201) and waste heat steam boiler (203) respectively through flue (102), waste heat conduction oil stove (201) rear end loops through flue (102) and connects high temperature draught fan (202), waste heat steam boiler (203), economizer (205), total draught fan (206).
2. The device for simultaneously heating heat conduction oil and supplying steam by using flue gas waste heat of electric calcining furnace according to claim 1, wherein: the upper end of the high-temperature-resistant electric smoke reversing valve (103) is connected with an electric calcining furnace direct-discharge chimney (104), and smoke is discharged from the electric calcining furnace (101) and enters the smoke explosion-proof valve (105) through the flue (102).
3. The device for simultaneously heating heat conduction oil and supplying steam by using flue gas waste heat of electric calcining furnace according to claim 1, wherein: the incinerator (108) is connected with a blower (109).
4. The device for simultaneously heating heat conduction oil and supplying steam by using flue gas waste heat of electric calcining furnace according to claim 1, wherein: the lower end of the waste heat steam boiler (203) is connected with a gas introducing device (107) or a user end (204), a butterfly valve a (208) is arranged at the front end of the gas introducing device (107), a butterfly valve b (209) is arranged at the front end of the user end (204), and the rear end of the gas introducing device (107) is connected in front of a flue gas inlet of the incinerator (108).
5. The device for simultaneously heating heat conduction oil and supplying steam by using flue gas waste heat of electric calcining furnace according to claim 1, wherein: still include controller (115), power module (110), temperature sensor (112), converter a (111), converter b (113) and negative pressure sensor (114), its characterized in that: install temperature sensor (112) on waste heat conduction oil stove (201), install negative pressure sensor (114) at electric calciner (101), controller (115) respectively with power module (110), temperature sensor (112), converter a (111), converter b (113) and negative pressure sensor (114) electric connection, converter a (111) and converter b (113) respectively with high temperature draught fan (202) and total draught fan (206) electric connection.
6. The device for simultaneously heating heat conduction oil and supplying steam by using flue gas waste heat of electric calcining furnace according to claim 1, wherein: the rear end of the main induced draft fan (206) is connected with a chimney (207) through a flue (102).
7. The device for simultaneously heating heat conduction oil and supplying steam by using flue gas waste heat of electric calcining furnace according to claim 1, wherein: the flue gas cooler (106), the economizer (205) and the waste heat steam boiler (203) are connected with the heat exchange system (3), the circulating water tank (302) is sequentially connected with the circulating water pump (301), the flue gas cooler (106), the water supply tank (304), the water supply pump (305), the economizer (205) and the waste heat steam boiler (203) through water pipes (303), and the flue gas cooler (106) of the waste heat steam boiler (203) adopts a water jacket type heat exchanger, and the flue gas temperature at the outlet side is less than or equal to 100 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320772512.4U CN220670229U (en) | 2023-04-10 | 2023-04-10 | Device for simultaneously heating heat conduction oil and supplying steam by flue gas waste heat of electric calcining furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320772512.4U CN220670229U (en) | 2023-04-10 | 2023-04-10 | Device for simultaneously heating heat conduction oil and supplying steam by flue gas waste heat of electric calcining furnace |
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| Publication Number | Publication Date |
|---|---|
| CN220670229U true CN220670229U (en) | 2024-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320772512.4U Active CN220670229U (en) | 2023-04-10 | 2023-04-10 | Device for simultaneously heating heat conduction oil and supplying steam by flue gas waste heat of electric calcining furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220670229U (en) |
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2023
- 2023-04-10 CN CN202320772512.4U patent/CN220670229U/en active Active
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