CN114136105A - Flue gas dust removal and waste heat recovery system and recovery method - Google Patents
Flue gas dust removal and waste heat recovery system and recovery method Download PDFInfo
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- CN114136105A CN114136105A CN202111486265.3A CN202111486265A CN114136105A CN 114136105 A CN114136105 A CN 114136105A CN 202111486265 A CN202111486265 A CN 202111486265A CN 114136105 A CN114136105 A CN 114136105A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/008—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning gases
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
- F27D2017/006—Systems for reclaiming waste heat using a boiler
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
- F27D2019/0006—Monitoring the characteristics (composition, quantities, temperature, pressure) of at least one of the gases of the kiln atmosphere and using it as a controlling value
- F27D2019/0018—Monitoring the temperature of the atmosphere of the kiln
- F27D2019/0021—Monitoring the temperature of the exhaust gases
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention provides a flue gas dedusting and waste heat recovery system and a recovery method, wherein a flue gas pipeline of a smelting furnace is sequentially connected with a steam generator and a condensation heat exchange dedusting tower through a fan; a condensed water outlet pipe in the condensation heat exchange dust removal tower is connected with a sedimentation tank; the sedimentation tank is connected with a hot water interface of the plate heat exchanger through a circulating pump; a cold water outlet of the plate heat exchanger is connected with a spray water inlet of the condensation heat exchange dust removal tower through a spray circulating valve and a pipeline; the low-temperature soft water inlet of the plate heat exchanger is connected with a soft water pipeline through a soft water valve; the high-temperature soft water outlet of the plate heat exchanger is connected with a steam generator through a water feeding pump; the steam generator is incorporated into the plant steam pipe network through steam solenoid valve and pipeline. The invention aims at flue gas with high temperature and high water vapor content, adopts a steam generator to generate steam by utilizing flue gas waste heat, and uses a condensation heat exchange dust removal tower to recover low-temperature waste heat in the flue gas, remove dust in the flue gas and recover condensed water for utilization, thereby achieving the purposes of energy saving and water saving.
Description
Technical Field
The invention relates to the technical field of flue gas waste heat recovery of industrial kilns, in particular to a flue gas dust removal and waste heat recovery system and a recovery method, which are suitable for recovering flue gas waste heat with high temperature and high water vapor content.
Background
China has the third world energy consumption, but the fuel utilization rate is less than 30%. The waste heat resource is abundant, a large amount of industrial waste heat is not fully utilized, and the low-temperature waste heat in various industries such as metallurgy, chemical industry, machinery, glass, ceramics and the like cannot be well recovered. Only taking an industrial kiln as an example, the exhaust gas temperature is generally 200-600 ℃, and the waste exhaust gas heat accounts for more than 50% of the fuel consumption. According to statistics, the heat value of the waste heat discharged by the industrial kiln gas of China every year is equivalent to the heat value of 4000 ten thousand tons of standard coal, and is equal to the output of a million tons of coal mines produced every two years, which is a great energy waste. Therefore, the waste heat recovery of the part is a key in an energy-saving link, and the waste heat recovery and utilization potential is huge.
In the industrial waste heat, the grade of the waste heat is divided into the following three types: (1) high-temperature waste gas waste heat: the temperature of the waste gas is higher than 650 ℃, and (2) the waste heat of the medium-temperature waste gas: the temperature of the waste gas is 350-650 ℃; (3) low-temperature waste gas waste heat: the temperature of the exhaust gas is less than 350 ℃. If the waste heat of each grade is utilized fully, the method has huge environmental protection and economic benefits.
Disclosure of Invention
The invention aims to establish a full-automatic control flue gas waste heat recovery system comprising a fault alarm device, so that full-automatic management of an operator on the system can be achieved, the system can operate under the optimized condition, the safety coefficient is improved, waste heat is recovered, flue gas is purified, the flue gas waste heat recovery system is used in production and life, the purposes of energy conservation and environmental protection are achieved, and the system is beneficial to the nation and people.
The invention aims at flue gas with high temperature and high water vapor content, adopts the steam generator to generate steam by utilizing the flue gas waste heat for production or living needs, and uses the condensing heat exchange dust removal tower to recover the low-temperature waste heat in the flue gas, remove dust in the flue gas and recover and utilize condensed water so as to achieve the purposes of energy saving and water saving.
The specific technical scheme is as follows:
the flue gas pipeline of the smelting furnace is sequentially connected with a steam generator and a condensation heat exchange dust removal tower through a fan;
a condensed water outlet pipe in the condensation heat exchange dust removal tower is connected with a sedimentation tank; the sedimentation tank is connected with a hot water interface of the plate heat exchanger through a circulating pump; the circulating pump is controlled by a temperature controller, and the temperature controller is connected with a flue gas inlet temperature sensor of the steam generator;
the sedimentation tank is also connected with a reservoir through an overflow pipeline;
a cold water outlet of the plate heat exchanger is connected with a spray water inlet of the condensation heat exchange dust removal tower through a spray circulating valve and a pipeline;
the low-temperature soft water inlet of the plate heat exchanger is connected with a soft water pipeline through a soft water valve, a water softener and a soft water tank are arranged on the soft water pipeline, and the water softener is connected with a tap water pipeline;
a high-temperature soft water outlet of the plate heat exchanger is connected with a steam generator through a high-temperature soft water valve and a water feeding pump, the water feeding pump is controlled by a steam drum liquid level controller, and the steam drum liquid level controller is connected with a liquid level sensor in the steam generator;
the steam generator is incorporated into the plant steam pipe network through steam solenoid valve and pipeline.
The flue gas dedusting and waste heat recovery method comprises the following steps:
in a flue gas flow system consisting of a smelting furnace, a fan, a steam generator and a condensation heat exchange tower, high-temperature flue gas of the smelting furnace is blown into the steam generator through the fan, and enters the condensation heat exchange dust removal tower after the temperature is reduced through the heat exchange process with cooling water;
the temperature of the flue gas subjected to heat exchange and dust removal in the condensation heat exchange dust removal tower is reduced to a low temperature and is discharged after reaching the standard; condensing water vapor carried in the flue gas and then flowing into a sedimentation tank, wherein overflow water is discharged into a reservoir through an overflow pipeline and is used for domestic production reuse water, and the other part of the overflow water enters a spraying circulating water flow;
in a spraying circulating water flow system consisting of a sedimentation tank, a circulating pump and a plate heat exchanger, water in the sedimentation tank is sent into the plate heat exchanger through the circulating pump to be cooled and then enters a condensation heat exchange dust removal tower through a circulating pipeline to be used as spray water to absorb heat in smoke, meanwhile, the spray water washes the smoke in a cyclone plate in the tower to humidify and increase weight of dust in the smoke, the dust is captured by the water and then flows into the sedimentation tank, and the smoke is purified to achieve the purpose of dust removal;
in the soft water flow of constituteing by water softener, softened water tank, plate heat exchanger, feed pump, steam generator, running water under the normal atmospheric temperature gets into through the running water pipeline and handles in the water softener and become the soft water flow through plate heat exchanger and get into steam generator through the feed pump and be heated into saturated steam as the cooling water after being heated by the high temperature hot water that the sedimentation tank flowed in, merge into the steam pipe network of mill through the steam solenoid valve.
The invention adopts full-automatic control without special person on duty and operation.
A human-computer interface: the controller adopts the touch liquid crystal screen display technology. The mechanism adopts a 10.1 ' inch liquid crystal touch screen, has a graphical interface of full Chinese display, has a good human-computer interface, meets the ' what you see is what you get ' requirement in the computer technology, and can keep a good display state under a severe working environment. The system can display the state of the energy saver in a full Chinese vertical plane by the following steps:
(1) displaying the temperature (T1) of the flue gas entering the steam generator, the temperature (T2) of the system flue gas and the like in real time;
(2) the pressure value of the steam is displayed in real time; displaying the water level in the steam drum in real time;
(3) and displaying the working states of the system, such as the running states of the water inlet pump, the spraying circulating pump and the electromagnetic valve in real time.
(4) And displaying various control parameter set values, the current state of the system and time in real time.
And (3) output control: two soft water feed pumps of the steam generator (one for one), two steam electromagnetic valves F and two circulating spray water pumps (one for one)
The start and stop of the feed water pump are controlled by the liquid level in the steam generator; the start and stop of the circulating pump are controlled by the inlet flue gas temperature T1 of the steam generator, when the temperature reaches the set temperature (can be set arbitrarily on the screen), the circulating pump is started, and when the temperature is lower than a certain set temperature (can be set arbitrarily on the screen), the circulating pump is stopped.
The electromagnetic valve is controlled by steam pressure (pressure is adjustable), the electromagnetic valve is opened when the pressure exceeds a set upper limit (original steam pipeline pressure), and the electromagnetic valve is closed when the pressure is lower than a set lower limit.
The control mode is as follows:
the system has two control modes of automatic control and manual control.
The system is automatically controlled. Normally open equipment enters an automatic running state and has a complete protection function;
manual control, used in two cases:
(1) the device is used for debugging personnel of a manufacturer on site; (2) when an operator confirms a fault, the operation of other equipment is not influenced, and manual operation can be used at the moment;
the system has various fault alarms, such as faults of the water pump and the temperature sensor, and sends out sound and light alarms and alarm pages on a screen. Alarm of pressure over-high (reason for non-starting safety valve); the steam pocket low water level alarms;
and the water pump is automatically switched to operate when the water pump fails.
The invention aims at flue gas with high temperature and high water vapor content, adopts the steam generator to generate steam by utilizing the flue gas waste heat for production or living needs, and uses the condensing heat exchange dust removal tower to recover the low-temperature waste heat in the flue gas, remove dust in the flue gas and recover and utilize condensed water so as to achieve the purposes of energy saving and water saving. Meanwhile, an automatic control system is adopted, so that the workload of workers is greatly reduced, and the safety factor is improved.
Drawings
FIG. 1 is a schematic process flow diagram of the present invention.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
The invention will be further explained with reference to the drawings.
As shown in fig. 1, in the flue gas dedusting and waste heat recovery system, a flue gas pipeline of a smelting furnace 20 is sequentially connected with a steam generator 17 and a condensation heat exchange dedusting tower 16 through a fan 19;
a condensed water outlet pipe in the condensation heat exchange dust removal tower 16 is connected with the sedimentation tank 12; the sedimentation tank 12 is connected with a hot water interface of the plate heat exchanger 6 through a circulating pump 8; the circulating pump 8 is controlled by a temperature controller 9, and the temperature controller 9 is connected with a flue gas inlet temperature sensor of a steam generator 17;
the sedimentation tank 12 is also connected with a water reservoir 10 through an overflow pipeline 11;
a cold water outlet of the plate heat exchanger 6 is connected with a spray water inlet of a condensation heat exchange dust removal tower 16 through a spray circulating valve 15 and a pipeline;
a low-temperature soft water inlet of the plate heat exchanger 6 is connected with a soft water pipeline 3 through a soft water valve 5, the soft water pipeline 3 is provided with a water softener 2 and a soft water tank 4, and the water softener is connected with a tap water pipeline 1;
a high-temperature soft water outlet of the plate heat exchanger 6 is connected with a steam generator 17 through a high-temperature soft water valve 7 and a water feeding pump 13, the water feeding pump 13 is controlled by a steam drum liquid level controller 14, and the steam drum liquid level controller 14 is connected with a liquid level sensor in the steam generator 17;
the steam generator 17 is incorporated into the plant steam pipe network by means of steam solenoid valves 18 and piping.
The flue gas waste heat recovery method shown in figure 1 comprises the following steps:
in the flue gas flow system composed of the smelting furnace 20, the fan 19, the steam generator 17 and the condensation heat exchange dust removal tower 16, high-temperature flue gas is blown into the steam generator 17 through the fan 19, the temperature is reduced through the heat exchange process with cooling water, the high-temperature flue gas enters the condensation heat exchange dust removal tower 16, and the temperature of the flue gas after heat exchange and dust removal can be reduced to lower temperature and is discharged after reaching the standard.
The water vapor in the flue gas flows into a sedimentation tank 12 after being condensed, wherein the overflow water is discharged into a reservoir 10 through an overflow pipeline 11 and is used as reuse water for life production, and the other part of the overflow water enters a spraying circulating water flow.
In the spraying circulating water flow system composed of the sedimentation tank 12, the circulating pump 8 and the plate heat exchanger 6, water in the sedimentation tank 12 is sent into the plate heat exchanger 6 through the circulating pump 8 (two are used and prepared) to be cooled and then enters the condensation heat exchange dust removal tower 16 through the circulating pipeline to be reheated, the heat in the flue gas is absorbed, meanwhile, the spraying water washes the flue gas in the cyclone plate in the tower to humidify and increase the weight of dust in the flue gas, the dust is captured by the water and then flows into the sedimentation tank 12, the flue gas is purified, and the dust removal purpose is achieved.
In the soft water flow of compriseing water softener 2, soft water tank 4, plate heat exchanger 6, feed pump 13, steam generator 17, the running water under the normal atmospheric temperature gets into through running water pipeline 1 and handles in water softener 2 and become the soft water flow through plate heat exchanger 6 after being heated by the high temperature hot water that sedimentation tank 12 flowed in, through feed pump 13 (two one is used one and is equipped with) reentrant steam generator 17 after being heated into saturated steam, merge into the steam pipe network of mill through steam solenoid valve 18, use in the actual production.
The control system consists of a temperature sensor, a pressure sensor, a steam electromagnetic valve 18, a temperature controller 9, a steam pocket liquid level controller 14, a touch screen and connecting wires (the wires are indicated by dotted lines). A liquid level display LC of a liquid level sensor in the steam generator 17 displays real-time liquid level, and the start and stop of the water feeding pump 13 are controlled by the steam drum liquid level controller 14, so that the real-time adjustment of the flow of cold fluid is realized.
The start and stop of the circulating pump 8 are controlled by the temperature of the inlet flue gas of the steam generator 17, the temperature controller 9 displays the real-time temperature, the temperature is transmitted to the circulating pump 8, when the temperature reaches the set temperature (can be set randomly on the screen), the circulating pump 8 is started, and when the temperature is lower than the set temperature (can be set randomly on the screen), the circulating pump 8 stops.
The steam solenoid valve 18 is controlled by the steam pressure, and when the pressure display shows that the pressure exceeds the set upper limit, the steam solenoid valve 18 is opened, and when the pressure is lower than the set lower limit, the steam solenoid valve 18 is closed.
The system enters an automatic running state after being normally opened and has a complete protection function. Meanwhile, when an operator confirms a fault or a manufacturer debugging worker needs to debug the device on site for use, the device can be manually controlled.
When various faults occur, such as faults of a water pump and a temperature sensor, ultrahigh pressure and low water level of a steam drum, the corresponding controllers can send out sound and light alarms and alarm pages appear on the screen.
Claims (3)
1. The flue gas dedusting and waste heat recovery system is characterized by comprising a steam generator (17) and a condensation heat exchange dedusting tower (16) which are sequentially connected with a flue gas pipeline of a smelting furnace (20) through a fan (19);
a condensed water outlet pipe in the condensation heat exchange dust removal tower (16) is connected with the sedimentation tank (12); the sedimentation tank (12) is connected with a hot water interface of the plate heat exchanger (6) through a circulating pump (8); the circulating pump (8) is controlled by a temperature controller (9), and the temperature controller (9) is connected with a flue gas inlet temperature sensor of the steam generator (17);
a cold water outlet of the plate heat exchanger (6) is connected with a spray water inlet of a condensation heat exchange dust removal tower (16) through a spray circulating valve (15) and a pipeline;
a low-temperature soft water inlet of the plate heat exchanger (6) is connected with a soft water pipeline (3) through a soft water valve (5), a water softener (2) and a soft water tank (4) are arranged on the soft water pipeline (3), and the water softener is connected with a tap water pipeline (1);
a high-temperature soft water outlet of the plate heat exchanger (6) is connected with a steam generator (17) through a high-temperature soft water valve (7) and a water feeding pump (13), the water feeding pump (13) is controlled by a steam drum liquid level controller (14), and the steam drum liquid level controller (14) is connected with a liquid level sensor in the steam generator (17);
the steam generator (17) is incorporated into the plant steam pipe network through a steam solenoid valve (18) and piping.
2. The flue gas dedusting and waste heat recovery system according to claim 1, wherein the sedimentation tank (12) is further connected with a water reservoir (10) through an overflow pipe (11).
3. The flue gas dedusting and waste heat recovery method is characterized in that the flue gas dedusting and waste heat recovery system of claim 1 or 2 is adopted, and the method comprises the following processes:
in a flue gas flow system consisting of a smelting furnace (20), a fan (19), a steam generator (17) and a condensation heat exchange tower (16), high-temperature flue gas of the smelting furnace (20) is blown into the steam generator (17) through the fan (19), and enters the condensation heat exchange dust removal tower (16) after the temperature is reduced through the heat exchange process with cooling water;
the temperature of the flue gas after heat exchange and dust removal in the condensation heat exchange dust removal tower (16) is reduced to low temperature and discharged after reaching the standard; the water vapor carried in the flue gas flows into a sedimentation tank (12) after being condensed, wherein the overflow water is discharged to a reservoir (10) through an overflow pipeline (11), and the other part of the overflow water enters a spraying circulating water flow;
in a spraying circulating water flow system consisting of a sedimentation tank (12), a circulating pump (8) and a plate heat exchanger (6), water in the sedimentation tank (12) is sent into the plate heat exchanger (6) through the circulating pump (8) to be cooled and then enters a condensation heat exchange dust removal tower (16) through a circulating pipeline to be used as spraying water to absorb heat in smoke, meanwhile, the spraying water washes the smoke in a cyclone plate in the tower to humidify and increase weight of dust in the smoke, the dust is captured by the water and then flows into the sedimentation tank (12), and the smoke is purified to achieve the purpose of dust removal;
in the soft water flow of constituteing by water softener (2), softened water tank (4), plate heat exchanger (6), feed water pump (13), steam generator (17), the running water under the normal atmospheric temperature gets into through running water pipeline (1) and handles in water softener (2) and become the soft water flow through plate heat exchanger (6) after being heated by the high temperature hot water that sedimentation tank (12) flowed in, get into steam generator (17) through feed water pump (13) and heat into the saturated steam as cooling water after, incorporate into the steam pipe net of mill through steam solenoid valve (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111486265.3A CN114136105A (en) | 2021-12-07 | 2021-12-07 | Flue gas dust removal and waste heat recovery system and recovery method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111486265.3A CN114136105A (en) | 2021-12-07 | 2021-12-07 | Flue gas dust removal and waste heat recovery system and recovery method |
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| CN114136105A true CN114136105A (en) | 2022-03-04 |
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| CN202111486265.3A Pending CN114136105A (en) | 2021-12-07 | 2021-12-07 | Flue gas dust removal and waste heat recovery system and recovery method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114504034A (en) * | 2022-03-11 | 2022-05-17 | 中南大学 | Anhua raw dark green tea baking system and control method |
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| CN201362637Y (en) * | 2009-03-17 | 2009-12-16 | 上海福莱特玻璃有限公司 | Residual heat recovery and desulfurization dust removal device of glass melter |
| CN202153011U (en) * | 2011-06-16 | 2012-02-29 | 重庆禾丰化工股份有限公司 | Exhaust gas recovery system of combustion furnace |
| CN104014236A (en) * | 2014-06-19 | 2014-09-03 | 南京凯盛开能环保能源有限公司 | Smoke purifying and residual heat deep recycling integrated device |
| CN108088271A (en) * | 2017-12-13 | 2018-05-29 | 北京铝能清新环境技术有限公司 | A kind of carbon element rotary kiln calcining flue gas purification system and its purification method |
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2021
- 2021-12-07 CN CN202111486265.3A patent/CN114136105A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201362637Y (en) * | 2009-03-17 | 2009-12-16 | 上海福莱特玻璃有限公司 | Residual heat recovery and desulfurization dust removal device of glass melter |
| CN202153011U (en) * | 2011-06-16 | 2012-02-29 | 重庆禾丰化工股份有限公司 | Exhaust gas recovery system of combustion furnace |
| CN104014236A (en) * | 2014-06-19 | 2014-09-03 | 南京凯盛开能环保能源有限公司 | Smoke purifying and residual heat deep recycling integrated device |
| CN108088271A (en) * | 2017-12-13 | 2018-05-29 | 北京铝能清新环境技术有限公司 | A kind of carbon element rotary kiln calcining flue gas purification system and its purification method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114504034A (en) * | 2022-03-11 | 2022-05-17 | 中南大学 | Anhua raw dark green tea baking system and control method |
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Application publication date: 20220304 |