CN111964431B - Flue gas recycling equipment of two thorax kilns of buggy - Google Patents
Flue gas recycling equipment of two thorax kilns of buggy Download PDFInfo
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- CN111964431B CN111964431B CN202010605932.4A CN202010605932A CN111964431B CN 111964431 B CN111964431 B CN 111964431B CN 202010605932 A CN202010605932 A CN 202010605932A CN 111964431 B CN111964431 B CN 111964431B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B1/00—Shaft or like vertical or substantially vertical furnaces
- F27B1/02—Shaft or like vertical or substantially vertical furnaces with two or more shafts or chambers, e.g. multi-storey
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L15/00—Heating of air supplied for combustion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B1/00—Shaft or like vertical or substantially vertical furnaces
- F27B1/10—Details, accessories, or equipment peculiar to furnaces of these types
- F27B1/18—Arrangements of dust collectors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B1/00—Shaft or like vertical or substantially vertical furnaces
- F27B1/10—Details, accessories, or equipment peculiar to furnaces of these types
- F27B1/22—Arrangements of heat-exchange apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B1/00—Shaft or like vertical or substantially vertical furnaces
- F27B1/10—Details, accessories, or equipment peculiar to furnaces of these types
- F27B1/26—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
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Combustion & Propulsion (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention discloses flue gas recycling equipment of a pulverized coal double-hearth kiln, which belongs to the technical field of double-hearth kilns and comprises a heating bin, wherein a first air inlet pipe is arranged inside the heating bin, a first three-way pipe is fixed at one end of the first air inlet pipe, a double-hearth kiln body is fixed at the top of the first three-way pipe, a second three-way pipe is fixed at the top of the double-hearth kiln body, a first electric control valve is installed on the second three-way pipe, an exhaust pipe is fixed at the top of the second three-way pipe, a second air inlet pipe is arranged inside the heating bin, a third three-way pipe is fixed at one end of the second air inlet pipe, and a second electric control valve is arranged on the third three-way pipe. The invention can heat combustion-supporting air entering the kiln by heat generated by the double-hearth kiln, improve the temperature in the burning double-hearth kiln, accelerate the burning efficiency, reduce the temperature difference in the kiln and reduce the loss of heat energy, thereby improving the energy-saving property of equipment.
Description
Technical Field
The invention relates to flue gas recycling equipment, in particular to flue gas recycling equipment of a pulverized coal double-hearth kiln, and belongs to the technical field of double-hearth kilns.
Background
Flue gas cyclic utilization equipment of two thorax kilns of current buggy, the effect as preheating in only carrying another thorax with the heat that produces in the thorax, can not be to combustion-supporting air heating, and two thorax kilns need accelerate the burning to the air of injecting into in the kiln when the burning, but the air that generally injects is cold air, so can make the interior temperature difference increase of thorax, consequently need consume very big heat supply and fuel, cause unnecessary waste, the efficiency of burning simultaneously is also low.
Disclosure of Invention
The invention mainly aims to provide flue gas recycling equipment of a pulverized coal double-hearth kiln, and solves the problems that in the prior art, the temperature difference in the kiln is large, energy is not saved, the environment is protected, and the combustion efficiency is low.
The purpose of the invention can be achieved by adopting the following technical scheme:
a flue gas recycling device of a pulverized coal double-hearth kiln comprises a heating bin and a controller, wherein a first air inlet pipe is arranged inside the heating bin, a first three-way pipe is fixed at one end of the first air inlet pipe, a double-hearth kiln body is fixed at the top of the first three-way pipe, a second three-way pipe is fixed at the top of the double-hearth kiln body, a first electric control valve is installed on the second three-way pipe, an exhaust pipe is fixed at the top of the second three-way pipe, a second air inlet pipe is arranged inside the heating bin, a third three-way pipe is fixed at one end of the second air inlet pipe, a second electric control valve is arranged on the third three-way pipe, the third three-way pipe is respectively communicated with the bottoms of the left and right hearths of the double-hearth kiln body, sliding grooves are symmetrically formed in the inner side of the heating bin, a filter screen is movably connected to the inner wall of the sliding grooves, and an electric cleaning mechanism is arranged on the filter screen, the bottom of the heating bin is fixed with a collecting frame, the exhaust pipe is connected to one side of the heating bin 1 close to the filter screen, the other side of the heating bin is provided with an exhaust port, the bottoms of the left chamber and the right chamber of the double-chamber kiln body are respectively provided with a pressure sensor, the controller is respectively connected with the first electric control valve, the second electric control valve, the pressure sensor and the electric cleaning mechanism, the controller is used for controlling the first electric control valve and the second electric control valve to be switched, so that the exhaust pipe and the second air inlet pipe are simultaneously communicated with the left chamber of the double-chamber kiln body, or the exhaust pipe and the second air inlet pipe are simultaneously communicated with the right chamber of the double-chamber kiln body, and the controller is used for switching the first electric control valve and the second electric control valve to simultaneously communicate the exhaust pipe and the second air inlet pipe with the other chamber of the double-chamber kiln body and sending out an alarm signal when the numerical value collected by the pressure sensor of the left chamber or the right chamber is too large, and after the controller receives the ash removal signal, the electric cleaning mechanism is started to remove ash.
Preferably: electronic clearance mechanism includes motor, fixed pipe, movable rod and button switch, the motor is located the outside of heated warehouses, the output shaft of motor passes through the shaft coupling and is fixed with the cam, fixed pipe is located the inner wall at the spout, the inner wall swing joint of fixed pipe has the movable rod, and button switch sets up the bottom of fixed pipe, the one end of fixed pipe is fixed with the spring, the one end and the filter screen fixed connection of fixed pipe are kept away from to the spring, and motor, button switch are connected with the controller, and the controller is used for after button switch is triggered, opens the motor and rotates and stop the motor and playback after predetermineeing a period.
Preferably: and the outer sides of the second air inlet pipe and the exhaust pipe are both provided with heat insulation coatings.
Preferably: the first air inlet pipe is a curved pipe, and one end of the second air inlet pipe is arranged to be a curved pipe.
Preferably: one side of the collecting frame is provided with a handle, and the outer side of the handle is provided with a heat insulation layer.
Preferably, the following components: the outside of filter screen is provided with sealed the pad, and sealed pad is sealed the pad for rubber packing.
The invention has the beneficial effects that:
the invention provides a flue gas recycling device of a pulverized coal double-hearth kiln, which comprises the following steps: through the heated warehouses, first intake pipe, first three-way pipe, two thorax kiln bodies, the second three-way pipe, first automatically controlled valve, the blast pipe, the second intake pipe, mutually supporting of third three-way pipe and second automatically controlled valve uses, the heat that can make two thorax kilns produce heats the combustion-supporting air in getting into the kiln, improve the temperature in the two thorax kilns of burning, accelerate the efficiency of burning, can reduce the temperature difference in the kiln in addition, reduce the loss of heat energy, thereby improve equipment's energy conservation.
Drawings
FIG. 1 is a front cross-sectional view of the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1 according to the present invention;
fig. 3 is a front view of the present invention.
In the figure: 1. a heating chamber; 2. a first intake pipe; 3. a first three-way pipe; 4. a double-chamber kiln body; 5. a second three-way pipe; 6. a first electrically controlled valve; 7. an exhaust pipe; 8. a second intake pipe; 9. a third three-way pipe; 10. a second electrically controlled valve; 11. a motor; 12. a cam; 13. a chute; 14. a fixed tube; 15. a movable rod; 16. a spring; 17. a filter screen; 18. a collection frame; 19. a handle; 20. an exhaust port; 30. a controller; 31. a pressure sensor; 32. a push button switch; 33. and (4) a thermal insulation coating.
Detailed Description
In order to make the technical solutions of the present invention more clear and definite for those skilled in the art, the present invention is further described in detail below with reference to the following examples and the accompanying drawings, but the embodiments of the present invention are not limited thereto.
As shown in fig. 1-3, the present embodiment provides a flue gas recycling device for a pulverized coal double-hearth kiln, which includes a heating bin 1 controller 30, a first air inlet pipe 2 is disposed inside the heating bin 1, a first three-way pipe 3 is fixed at one end of the first air inlet pipe 2, a double-hearth kiln body 4 is fixed at the top of the first three-way pipe 3, a second three-way pipe 5 is fixed at the top of the double-hearth kiln body 4, a first electrically controlled valve 6 is installed on the second three-way pipe 5, an exhaust pipe 7 is fixed at the top of the second three-way pipe 5, a second air inlet pipe 8 is disposed inside the heating bin 1, a third three-way pipe 9 is fixed at one end of the second air inlet pipe 8, a second electrically controlled valve 10 is disposed on the third three-way pipe 9, the third three-way pipe 9 is respectively communicated with the bottoms of the left and right two hearths of the double-hearth kiln body 4, chutes 13 are symmetrically disposed inside the heating bin 1, and filter screens 17 are movably connected with the inner wall of the chutes 13, be provided with electronic clearance mechanism on the filter screen 17, the bottom of heating chamber 1 is fixed with collects frame 18, and blast pipe 7 is connected to one side that heating chamber 1 is close to filter screen 17, and the opposite side of heating chamber 1 is provided with gas vent 20.
The bottoms of the left and right chambers of the double-chamber kiln body 4 are respectively provided with a pressure sensor 31, the controller 30 is respectively connected with the first electric control valve 6, the second electric control valve 10, the pressure sensor 31 and the electric cleaning mechanism, the controller 30 is used for controlling the first electric control valve 6 and the second electric control valve 10 to be switched, so that the exhaust pipe 7 and the second air inlet pipe 8 are simultaneously communicated with the left chamber of the double-chamber kiln body 4, or the exhaust pipe 7 and the second inlet pipe 8 are simultaneously communicated with the right bore of the double-bore kiln body 4, and the controller 30 is used for detecting that the value collected by the pressure sensor 31 of the left bore or the right bore is overlarge, the first electric control valve 6 and the second electric control valve 10 are switched to simultaneously communicate the exhaust pipe 7 and the second air inlet pipe 8 to the other chamber of the double-chamber kiln body 4, and sends out an alarm signal, and the controller 30 starts the electric cleaning mechanism to clean ash after receiving the ash cleaning signal.
When the double-hearth kiln works, one hearth of the left and right hearth bodies of the double-hearth kiln body 4 can be simultaneously communicated with the exhaust pipe 7 and the second air inlet pipe 8 through the first electric control valve 6 and the second electric control valve 10, so that combustion supporting and combustion can be realized. After combustion, the tail gas enters the heating chamber 1 through the exhaust pipe 7, and heats the first air inlet pipe 2 and the second air inlet pipe 8. After combustion, the ash will accumulate on the filter screen at the bottom of the double-chamber kiln body, gradually rise and press against the pressure sensor 31. Pressure sensor 31 need use high temperature resistant, perhaps sets up pressure sensor 31 in the outside of two thorax kiln bodies 4, is connected to two thorax kiln bodies 4 through a connecting rod inside, and ashes can extrude the connecting rod, and then the connecting rod extrudees pressure sensor and realizes detecting. After the pressure sensor 31 detects that ash exists, the first electronic control valve 6 and the second electronic control valve 10 are switched, and then the other chamber starts to burn. At the moment, an alarm signal is sounded, the alarm signal can be an alarm lamp, a sound alarm signal and the like, and a user knows that ash is more and ash needs to be removed. The ash removing port on the bottom side wall of the double-chamber kiln body 4 can be opened to discharge ash to wait for the next combustion. Wherein, because of the reason of the drawing, first intake pipe 2 and second intake pipe 8 seem very short length, are actually that the annular winding is inside heating chamber 1, and length is very long, can realize the heating to gaseous.
The electric ash cleaning mechanism can adopt a blower form to blow air on the filter screen, or adopts a water flushing form to flush by spraying water through a spray head on the filter screen.
In this embodiment, as shown in fig. 2 to 3, the electric cleaning mechanism includes a motor 11, a fixed pipe 14, a movable rod 15 and a button switch 32, the motor 11 is located outside the heating chamber 1, an output shaft of the motor 11 is fixed with a cam 12 through a coupler, the fixed pipe 14 is located on an inner wall of the chute 13, the inner wall of the fixed pipe 14 is movably connected with the movable rod 15, the button switch 32 is disposed at the bottom of the fixed pipe 14, one end of the fixed pipe 14 is fixed with a spring 16, one end of the spring 16 away from the fixed pipe 14 is fixedly connected with a filter screen 17, the motor 11 and the button switch 32 are connected with a controller 30, and the controller 30 is configured to turn on the motor 11 to rotate for a preset period of time after the button switch 32 is triggered, and then stop the motor 11 and return to the original position. The deashing signal can be artifical manual button signal, then when needing to clear up filter screen 17, press the button, starter motor 11, motor 11 drives cam 12 and rotates, cam 12 rotates fast and then intermittent type nature promotes filter screen 17 and removes to fixed pipe 14 one side, and under spring 16's spring action, filter screen 17 rebounds cam 12 one side, can produce vibrations when filter screen 17 moves fast and then make the dust on the filter screen 17 drop to collecting in the frame 18, need not to dismantle the filter screen and can clear up, staff's work load has been alleviateed, and the difficult scald of operation safe and reliable. And the deashing signal can be triggered by button switch 32, and when the dust is more, filter screen 17 has great extrusion force, can move filter screen 17 to the right side, and movable rod 15 extrudees button switch 32 and triggers automatic deashing. After the ash removal is finished, the motor needs to be reset, and the motor is prevented from always propping the button switch after propping the filter screen. If the stepping motor is adopted, the motor is directly controlled to return. If the motor is other motors, the motor can be controlled to stop, and then whether the button switch is in the trigger state or not is detected, if the motor is in the trigger state, the motor is not reset, and then the motor is rotated and stopped until the button switch is detected not to be in the trigger state.
In this embodiment, as shown in fig. 1, the thermal insulation coatings 33 are disposed on the outer sides of the second air inlet pipe 8 and the exhaust pipe 7, so as to prevent the waste of resources caused by the heat loss of the hot air passing through the exhaust pipe 7 and the second air inlet pipe 8, thereby improving the utilization rate of the resources.
In this embodiment, as shown in fig. 1, the first air inlet pipe 2 is a curved pipe, and one end of the second air inlet pipe 8 is provided with a curved pipe, so that on one hand, air is concentrated into the heating chamber 1, and on the other hand, the contact time between cold air in the pipeline and hot air in the heating chamber 1 is prolonged, so that the temperature of the air in the pipeline is increased as much as possible, and the combustion rate of the dual-chamber kiln is increased.
In this embodiment, as shown in fig. 3, a handle 19 is disposed on one side of the collecting frame 18, and a thermal insulation layer is disposed on the outer side of the handle, so that people are not easily burned by the high temperature of the handle when cleaning the smoke in the collecting frame 18.
In this embodiment, as shown in fig. 2, the outside of the filter screen 17 is provided with a sealing gasket, and the sealing gasket is a rubber sealing gasket, and the sealing gasket arranged on both sides of the filter screen 17 can reduce the gap between the filter screen 17 and the inner side wall of the heating chamber 1, so that the smoke is not easy to enter the other side of the filter screen 17 when the filter screen 17 moves to pollute the inside of the heating chamber 1.
The above description is only for the purpose of illustrating the present invention and is not intended to limit the scope of the present invention, and any person skilled in the art can substitute or change the technical solution of the present invention and its conception within the scope of the present invention.
Claims (5)
1. The utility model provides a flue gas cyclic utilization equipment of two thorax kilns of buggy which characterized in that: the heating device comprises a heating bin (1) and a controller (30), wherein a first air inlet pipe (2) is arranged inside the heating bin (1), a first three-way pipe (3) is fixed at one end of the first air inlet pipe (2), a double-hearth kiln body (4) is fixed at the top of the first three-way pipe (3), a second three-way pipe (5) is fixed at the top of the double-hearth kiln body (4), a first electric control valve (6) is installed on the second three-way pipe (5), an exhaust pipe (7) is fixed at the top of the second three-way pipe (5), a second air inlet pipe (8) is arranged inside the heating bin (1), a third three-way pipe (9) is fixed at one end of the second air inlet pipe (8), a second electric control valve (10) is arranged on the third three-way pipe (9), and the third three-way pipe (9) is respectively connected with the left air inlet pipe, the left air inlet pipe and the left air inlet pipe, the left air outlet pipe and the left air inlet pipe and the right air inlet pipe (5) and the exhaust pipe (7) and the exhaust pipe (10) are respectively connected with the third air inlet pipe (9) and the exhaust pipe (10) and the exhaust pipe (9) of the double-three-way pipe (3) respectively, The bottoms of the right two chambers are communicated;
the inner side of the heating bin (1) is symmetrically provided with sliding grooves (13), the inner wall of each sliding groove (13) is movably connected with a filter screen (17), an electric cleaning mechanism is arranged on each filter screen (17), the bottom of the heating bin (1) is fixedly provided with a collecting frame (18), an exhaust pipe (7) is connected to one side, close to each filter screen (17), of the heating bin (1), and an exhaust port (20) is formed in the other side of the heating bin (1);
the bottom of the left and right chambers of the double-chamber kiln body (4) is respectively provided with a pressure sensor (31), the controller (30) is respectively connected with the first electric control valve (6), the second electric control valve (10), the pressure sensor (31) and the electric cleaning mechanism, the controller (30) is used for controlling the first electric control valve (6) and the second electric control valve (10) to be switched, so that the exhaust pipe (7) and the second air inlet pipe (8) are simultaneously communicated with the left chamber of the double-chamber kiln body (4), or the exhaust pipe (7) and the second air inlet pipe (8) are simultaneously communicated with the right chamber of the double-chamber kiln body (4), and the controller (30) is used for switching the first electric control valve (6) and the second electric control valve (10) when the numerical value collected by the pressure sensor (31) of the left chamber or the right chamber is overlarge, so that the exhaust pipe (7) and the second air inlet pipe (8) are simultaneously communicated with the other chamber of the double-chamber kiln body (4), an alarm signal is sent out, and after the controller (30) receives the ash removal signal, the electric cleaning mechanism is started to clean ash;
the left hearth and the right hearth of the double-hearth kiln body (4) are close to each other;
the electric cleaning mechanism comprises a motor (11), a fixed pipe (14), a movable rod (15) and a button switch (32), wherein the motor (11) is positioned at the outer side of the heating bin (1), an output shaft of the motor (11) is fixed with a cam (12) through a shaft coupling, the fixed pipe (14) is positioned on the inner wall of a sliding groove (13), the inner wall of the fixed pipe (14) is movably connected with the movable rod (15), the button switch (32) is arranged at the bottom of the fixed pipe (14) positioned above, one end of the fixed pipe (14) is fixed with a spring (16), one end, far away from the fixed pipe (14), of the spring (16) is fixedly connected with a filter screen (17), the motor (11) and the button switch (32) are connected with a controller (30), the controller (30) is used for opening the motor (11) to rotate for a preset period of time and then stopping the motor (11) and returning to the position after the button switch (32) is triggered, the push-button switch is prevented from being always pressed against the filter screen, and the motor (11) is a stepping motor.
2. The flue gas recycling equipment of the pulverized coal double-hearth kiln according to claim 1, characterized in that: and the outer sides of the second air inlet pipe (8) and the exhaust pipe (7) are both provided with heat insulation coatings.
3. The flue gas recycling equipment of the pulverized coal double-hearth kiln according to claim 1, characterized in that: the first air inlet pipe (2) is a curved pipe, and one end of the second air inlet pipe (8) is arranged to be a curved pipe.
4. The flue gas recycling equipment of the pulverized coal double-hearth kiln according to claim 1, characterized in that: one side of the collecting frame (18) is provided with a handle, and the outer side of the handle is provided with a heat insulation layer.
5. The flue gas recycling equipment of the pulverized coal double-hearth kiln according to claim 1, characterized in that: the outside of filter screen (17) is provided with sealed the pad, and sealed the pad for rubber seal pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010605932.4A CN111964431B (en) | 2020-06-29 | 2020-06-29 | Flue gas recycling equipment of two thorax kilns of buggy |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010605932.4A CN111964431B (en) | 2020-06-29 | 2020-06-29 | Flue gas recycling equipment of two thorax kilns of buggy |
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| CN111964431A CN111964431A (en) | 2020-11-20 |
| CN111964431B true CN111964431B (en) | 2022-08-26 |
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| CN202010605932.4A Active CN111964431B (en) | 2020-06-29 | 2020-06-29 | Flue gas recycling equipment of two thorax kilns of buggy |
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| CN114412636A (en) * | 2021-12-18 | 2022-04-29 | 厦门彼奥动力科技有限公司 | Sand prevention diesel generating set box |
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| EP1297190A1 (en) * | 2000-06-28 | 2003-04-02 | Voest-Alpine Industrieanlagenbau GmbH & Co. | Method and installation for the indirect reduction of particulate oxide-containing ores |
| CN101723605A (en) * | 2009-12-08 | 2010-06-09 | 福州闽缘电子有限公司 | Afterheat recycling method based on steel-making double-hearth lime kiln |
| CN203687658U (en) * | 2014-01-21 | 2014-07-02 | 唐山钢铁国际工程技术有限公司 | Double-chamber heat accumulating type lime shaft kiln smoke heat exchange pipeline |
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| CN111964431A (en) | 2020-11-20 |
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