CN111486471A - Combustion chamber damping device - Google Patents
Combustion chamber damping device Download PDFInfo
- Publication number
- CN111486471A CN111486471A CN201910676479.3A CN201910676479A CN111486471A CN 111486471 A CN111486471 A CN 111486471A CN 201910676479 A CN201910676479 A CN 201910676479A CN 111486471 A CN111486471 A CN 111486471A
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- China
- Prior art keywords
- combustion chamber
- damping wall
- wall
- air
- flue gas
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000013016 damping Methods 0.000 title claims abstract description 127
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 111
- 238000009423 ventilation Methods 0.000 claims abstract description 27
- 230000017525 heat dissipation Effects 0.000 claims description 17
- 239000003546 flue gas Substances 0.000 abstract description 68
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 59
- 239000000428 dust Substances 0.000 abstract description 28
- 239000000126 substance Substances 0.000 abstract description 17
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 239000000779 smoke Substances 0.000 description 26
- 238000001354 calcination Methods 0.000 description 15
- 238000001816 cooling Methods 0.000 description 5
- 239000002006 petroleum coke Substances 0.000 description 5
- 239000002918 waste heat Substances 0.000 description 5
- 230000003116 impacting effect Effects 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 2
- 239000003830 anthracite Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 206010022000 influenza Diseases 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000002008 calcined petroleum coke Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
- F23M9/00—Baffles or deflectors for air or combustion products; Flame shields
- F23M9/04—Baffles or deflectors for air or combustion products; Flame shields with air supply passages in the baffle or shield
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Incineration Of Waste (AREA)
Abstract
The invention discloses a combustion chamber damping device which comprises a combustion chamber, wherein an upper damping wall is inserted and installed on the side wall of the combustion chamber, the upper end of the upper damping wall is connected with the upper top wall of the combustion chamber in a pouring mode, the upper damping wall is located in the middle of the upper top wall of the combustion chamber, a lower damping wall is fixedly installed on the inner bottom wall of the combustion chamber, the lower damping wall is fixed on the two side walls of the combustion chamber, the combustion chamber comprises an inlet flue and an outlet flue, and the lower damping wall is located at the inlet flue. According to the invention, the upper damping wall and the lower damping wall are arranged in the combustion chamber to reduce the flow speed of the flue gas, so that the residence time of the flue gas in the combustion chamber is increased, dust and volatile substances can be fully combusted, the pollution emission is reduced, the pressure of the lower damping wall is released through the pressure release hole, the upper damping wall is cooled through the ventilation pipe, the firmness of the lower damping wall and the upper damping wall is increased, and the service lives of the lower damping wall and the upper damping wall are prolonged.
Description
Technical Field
The invention relates to the field of petroleum coke calcination, in particular to a combustion chamber damping device.
Background
Calcining is a process of carrying out high-temperature heat treatment on various solid carbonaceous raw materials (such as raw petroleum coke and anthracite) under the condition of isolating air, the calcining process of the raw materials is completed by a calcining furnace (a rotary kiln or a tank furnace), according to certain differences of calcining temperatures of different raw materials and products, the calcining temperature of the petroleum coke generally must reach over 1200 ℃, the calcining temperature of the anthracite must reach over 1350 ℃ to realize the aim of calcining the raw materials, the calcining furnace tail is connected with a combustion chamber, the outlet of the combustion chamber is connected with a flue of a waste heat boiler, carbon powder which is not completely combusted in the calcining furnace enters the combustion chamber along with high-temperature flue gas to be continuously combusted, the generated high-temperature flue gas enters the waste heat boiler through the flue to absorb heating media, tail gas energy is recycled, and then the low-temperature flue gas is pumped out by a draught fan on the flue of, and finally, discharging into the atmosphere, wherein the combustion chamber is a device for carrying out secondary combustion on the tail flue gas of the calcining rotary kiln and is an important component of a calcining kiln system.
The existing combustion chamber is of a U-shaped direct structure, calcined smoke enters the combustion chamber for secondary combustion, but the direct combustion chamber cannot decelerate the smoke after the smoke is introduced, so that the flow speed of the smoke is too high, dust and volatile substances in the calcined petroleum coke smoke are discharged from the combustion chamber when the dust and the volatile substances are not sufficiently combusted in the combustion chamber, the dust and the volatile substances enter an outlet flue after the dust and the volatile substances are not sufficiently combusted, dust deposition on the wall of a waste heat boiler tube is caused, the negative pressure of a system is reduced, and meanwhile, the emission indexes of the dust, nitrogen oxides and the like in the smoke exceed the standard due to insufficient combustion, and the environmental effect is influenced.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a combustion chamber damping device.
In order to achieve the purpose, the invention adopts the following technical scheme:
a combustion chamber damping device comprises a combustion chamber, wherein an upper damping wall is inserted and installed on the side wall of the combustion chamber, the upper end of the upper damping wall is connected with the upper top wall of the combustion chamber in a pouring mode, the upper damping wall is located in the middle of the upper top wall of the combustion chamber, a lower damping wall is fixedly installed on the inner bottom wall of the combustion chamber and fixed on two side walls of the combustion chamber, the combustion chamber comprises an inlet flue and an outlet flue, and the lower damping wall is located at the inlet flue;
the incompletely combusted dust in the flue gas discharged by the calcining furnace enters the combustion chamber through the inlet flue for secondary combustion, when the flue gas enters the combustion chamber, the flue gas flows in through the inlet flue, the flue gas flow at the lower part collides with the lower damping wall, so that the flow velocity of the flue gas at the lower part is suddenly reduced, the flue gas at the upper part collides with the upper damping wall, so that the flow velocity of the flue gas at the upper part is suddenly reduced, the flue gas at the lower part collides with the lower damping wall and then rebounds to the bottom wall and the side wall of the combustion chamber, then rebounds from the bottom wall and the side wall of the combustion chamber to the middle flue gas circulation position, two flue gases with different flow velocity directions collide at the middle flue gas circulation position, so that the flow velocity of the flue gas at the middle part is reduced, the flue gas at the middle part deviates from colliding with the upper damping wall, and the flue gas at the upper damping wall and the, then the smoke rebounds to the middle smoke circulation part through the upper top wall of the combustion chamber, the smoke flow speed at the middle smoke circulation part is further reduced, the smoke flow speed entering the combustion chamber is suddenly reduced, the retention time of the smoke in the combustion chamber is increased, the combustion time of dust in the smoke in the combustion chamber is increased, the dust can be fully combusted, the possibility of scaling of the wall of a subsequent waste heat boiler is reduced, and the emission can reach the environmental protection standard;
a plurality of ventilation pipes are fixedly inserted into the upper damping wall, heat dissipation layers are poured around the ventilation pipes, an air inlet pipe is fixedly inserted into one side of the upper damping wall, which is positioned in the combustion chamber, an air outlet pipe is fixedly inserted into the other side of the upper damping wall, the air inlet pipe and the air outlet pipe are both communicated with the plurality of ventilation pipes, a blower is fixedly installed at the upper end of the outer side of the combustion chamber, a wind direction guide pipe is fixedly connected to the air outlet end of the blower, and one end of the wind direction guide pipe, which is far away from the blower, is connected to the upper end of the air inlet;
air blower work blows the air that the temperature is low in with the external world in the air inlet pipe along the wind direction honeycomb duct, and the air blows to in a plurality of ventilation pipes from the air inlet pipe, and a plurality of ventilation pipes run through the both ends of whole last damping wall, then a plurality of ventilation pipes can make and go up damping wall rapid cooling, and the air in a plurality of ventilation pipes is heated the back and is discharged along going out the tuber pipe, and the air-blower makes the air constantly blow in a plurality of ventilation pipes, lasts for going up the damping wall cooling.
Preferably, the sum of the height of the upper damping wall and the height of the lower damping wall is greater than the internal height of the combustion chamber, namely, the upper end of the lower damping wall is staggered with the lower end of the upper damping wall, so that the flue gas must be buffered and decelerated by the lower damping wall and the upper damping wall after entering the combustion chamber from the inlet flue, namely, the flue gas cannot bypass the upper damping wall and the lower damping wall and is directly discharged from the flow outlet flue of the combustion chamber, the flue gas dust flowing through the combustion chamber stays in the combustion chamber for a long time to be fully combusted, and the possibility of harmful pollutant emission is reduced.
Preferably, a plurality of heat dissipation holes are formed in the heat dissipation layer and are connected in a staggered manner, the cooling and heat dissipation capacity of the heat dissipation layer by the ventilation pipes is increased, a plurality of pressure relief holes are formed in the lower damping wall, smoke flowing into the combustion chamber at a high speed through the inlet flue tends to firstly impact the lower damping wall blocking the smoke at the inlet flue, and when the smoke impacts the lower damping wall at a high speed, part of the smoke passes through the lower damping wall to reduce the impact force of the smoke on the lower damping wall and reduce the flow rate of the smoke passing through the pressure relief holes, so that the lower damping wall is prevented from cracking in a long-time use process, and the service life of the lower damping wall is prolonged.
The invention has the following beneficial effects:
1. make the petroleum coke flue gas reduce the flue gas velocity of flow behind letting in the combustion chamber through the lower damping wall that sets up last damping wall in the middle of combustion chamber upper portion and combustion chamber bottom for the flue gas dwells for a long time in the combustion chamber, can make the dust in the flue gas and some volatile material can fully burn promptly, reduces and discharges the pollutant, and avoids exhaust-heat boiler scale deposit.
2. Go up and be provided with the ventilation pipe in the damping wall, let in the lower air of ambient temperature for the ventilation pipe through the air-blower, make the ventilation pipe can give damping wall heat dissipation cooling fast through the heat dissipation vestibule, it leads to pouring the junction fracture and falls to prevent to go up the damping wall because of the high temperature, increase the fastness of the connection of damping wall, and increase its life, a plurality of pressure release holes have been seted up on the lower damping wall, reduce the flue gas to the impact force of damping wall down, increase the fastness of damping wall connection and its life down.
In conclusion, the upper damping wall and the lower damping wall are arranged in the combustion chamber to reduce the flow speed of the flue gas, so that the residence time of the flue gas in the combustion chamber is increased, dust and volatile substances can be fully combusted, the pollution emission is reduced, the pressure of the pressure relief hole on the lower damping wall is relieved, the ventilation pipe cools the upper damping wall, the firmness of the lower damping wall and the upper damping wall is improved, and the service life of the lower damping wall and the upper damping wall is prolonged.
Drawings
FIG. 1 is a schematic view of a combustor damping apparatus according to the present invention;
fig. 2 is a schematic side view of a combustion chamber damping apparatus according to the present invention.
In the figure: 1 combustion chamber, 2 upper damping walls, 3 lower damping walls, 4 inlet flues, 5 outlet flues, 6 pressure relief holes, 201 heat dissipation layers, 202 ventilation pipes, 203 air inlet pipes, 204 wind direction draft pipes, 205 blowers, 206 air outlet pipes and 207 heat dissipation hole cavities.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-2, a combustion chamber damping device comprises a combustion chamber 1, wherein an upper damping wall 2 is inserted and installed on the side wall of the combustion chamber 1, the upper end of the upper damping wall 2 is connected with the upper top wall of the combustion chamber 1 in a pouring manner, the upper damping wall 2 is positioned in the middle of the upper top wall of the combustion chamber 1, a lower damping wall 3 is fixedly installed on the inner bottom wall of the combustion chamber 1, the lower damping wall 3 is fixed on two side walls of the combustion chamber 1, the combustion chamber 1 comprises an inlet flue 4 and an outlet flue 5, and the lower damping wall 3 is positioned at the inlet flue 4;
the incompletely combusted dust mixed in the flue gas discharged after calcination by the calciner enters the combustion chamber 1 through the inlet flue 4 to be combusted again, when the flue gas enters the combustion chamber 1, the flue gas flows in through the inlet flue 4, the flue gas flow at the lower part collides against the lower damping wall 3 to cause the flow velocity of the flue gas at the lower part to be suddenly reduced, the flue gas at the upper part collides against the upper damping wall 2 to cause the flow velocity of the flue gas at the upper part to be suddenly reduced, the flue gas at the lower part rebounds to the bottom wall and the side wall of the combustion chamber 1 after impacting against the lower damping wall 3, then rebounds to the middle flue gas circulation part from the bottom wall and the side wall of the combustion chamber 1, at the middle flue gas circulation part, the flue gas with two different flow velocity directions collides to cause the flow velocity of the flue gas at the middle part to be deviated to impact against the upper damping wall 2, the flue gas collided at the upper damping wall 2 and the deviated middle flue gas at the upper top wall, then the smoke rebounds to the middle smoke circulation part through the upper top wall of the combustion chamber 1, the smoke flow speed at the middle smoke circulation part is further reduced, the smoke flow speed entering the combustion chamber 1 is suddenly reduced, the retention time of the smoke in the combustion chamber 1 is increased, the combustion time of dust in the smoke in the combustion chamber 1 is increased, the dust can be fully combusted, the possibility of scaling of the wall of a subsequent waste heat boiler is reduced, and the emission can reach the environmental protection standard;
a plurality of ventilation pipes 202 are fixedly inserted into the upper damping wall 2, a heat dissipation layer 201 is poured around the ventilation pipes 202, an air inlet pipe 203 is fixedly inserted into one side of the upper damping wall 2, which is positioned in the combustion chamber 1, an air outlet pipe 206 is fixedly inserted into the other side of the upper damping wall 2, the air inlet pipe 203 and the air outlet pipe 206 are both communicated with the ventilation pipes 202, an air blower 205 is fixedly installed at the upper end of the outer side of the combustion chamber 1, an air outlet end of the air blower 205 is fixedly connected with a wind direction guide pipe 204, and one end of the wind direction guide pipe 204, which is far away from the air blower 205, is connected to;
the air blower 205 works to blow the air with the temperature lower than that in the combustion chamber 1 into the air inlet pipe 203 along the wind direction draft tube 204, the air is blown into the plurality of ventilation pipes 202 from the air inlet pipe 203, the plurality of ventilation pipes 202 run through the two ends of the whole upper damping wall, then the plurality of ventilation pipes 202 can enable the upper damping wall 2 to be rapidly cooled, the air in the plurality of ventilation pipes 202 is heated and then discharged along the air outlet pipe 206, the air blower 205 enables the air to be continuously blown into the plurality of ventilation pipes 202, and the upper damping wall 2 is continuously cooled.
The sum of the height of the upper damping wall 2 and the height of the lower damping wall 3 is greater than the internal height of the combustion chamber 1, namely, the upper end of the lower damping wall 3 is staggered with the lower end of the upper damping wall 2, so that the flue gas enters the combustion chamber 1 from the inlet flue 4 and must be buffered and decelerated by the lower damping wall 3 and the upper damping wall 2, namely, the flue gas cannot bypass the upper damping wall 2 and the lower damping wall 3 and is directly discharged from the combustion chamber 1 to the outlet flue 5, the flue gas dust flowing through the combustion chamber 1 stays in the combustion chamber 1 for a long time to be fully combusted, and the possibility of harmful pollutant emission is reduced.
Offer a plurality of heat dissipation vestibules 207 in the heat dissipation layer 201, crisscross linking to each other between a plurality of heat dissipation vestibules 207, increase the cooling heat-sinking capability of a plurality of ventilation pipes 202 to heat dissipation layer 201, a plurality of pressure release holes 6 have been seted up on lower damping wall 3, the flue gas that flows into combustion chamber 1 through inlet flue 4 high-speed must strike earlier and block the lower damping wall 3 of flue gas in inlet flue 4 department, a plurality of pressure release holes 6 can be when damping wall 3 is strikeed down to the flue gas at a high speed, make partial flue gas pass through lower damping wall 3 in order to reduce the flue gas to lower damping wall 3, and can reduce the flue gas velocity of flow that passes along the circulation of a plurality of pressure release holes 6, prevent lower damping wall 3 fracture in long-time use, increase damping wall 3's life down.
When the invention is used, the flue gas, the dust and the volatile substances generated after petroleum coke calcination are discharged into the combustion chamber 1 together, the flue gas containing the volatile substances and the dust rapidly flows into the combustion chamber 1 through the inlet flue 4, most of the flue gas containing the volatile substances and the dust at the inlet flue 4 in the combustion chamber 1 impacts the lower damping wall 3, the small part of the flue gas impacts the upper damping wall 2, most of the flue gas containing the volatile substances and the dust impacting the lower damping wall 3 rebounds to the inner bottom wall and the inner side wall of the combustion chamber 1, then rebounds to the circulation position at the upper end of the lower damping wall 3 again, the small part of the flue gas containing the volatile substances and the dust impacting the upper damping wall 2 rebounds to the upper top wall of the combustion chamber 1, then rebounds to the circulation position between the upper damping wall 2 and the lower damping wall 3 again, and the two rebounded flue gases containing the volatile substances and the dust flow to the flue gas containing the volatile substances and the dust flowing along the circulation position along different impacting directions, the flow velocity of all the flue gases is suddenly reduced after the flue gases are impacted, the flue gases containing volatile substances and dust are mixed and disordered in the combustion chamber 1 and continuously collide with each other, so that the flue gases are diffused and combusted in the whole combustion chamber 1, the flue gases containing the volatile substances and the dust with the suddenly reduced flow velocity have sufficient time to be fully combusted in the combustion chamber 1, the flue gases containing the volatile substances and the dust after being fully combusted are extruded by the flue gases containing the volatile substances and the dust which subsequently flow into the combustion chamber 1 and are discharged out of the combustion chamber through the outlet flue 5, and the secondary full combustion process is completed.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (3)
1. The combustion chamber damping device comprises a combustion chamber (1), and is characterized in that an upper damping wall (2) is inserted and installed on the side wall of the combustion chamber (1), the upper end of the upper damping wall (2) is connected with the upper top wall of the combustion chamber (1) in a pouring manner, the upper damping wall (2) is located in the middle of the upper top wall of the combustion chamber (1), a lower damping wall (3) is fixedly installed on the inner bottom wall of the combustion chamber (1), the lower damping wall (3) is fixed on two side walls of the combustion chamber (1), the combustion chamber (1) comprises an inlet flue (4) and an outlet flue (5), and the lower damping wall (3) is located at the inlet flue (4);
go up damping wall (2) internal fixation and insert and be equipped with a plurality of ventilation pipes (202), heat dissipation layer (201) have been pour around of ventilation pipe (202), it is fixed to insert in one side that last damping wall (2) are located combustion chamber (1) and is equipped with air-supply line (203), it is fixed to insert and is equipped with out tuber pipe (206) to go up the opposite side that damping wall (2) are located combustion chamber (1), air-supply line (203) all communicate with a plurality of ventilation pipes (202) with play tuber pipe (206), the outside upper end fixed mounting of combustion chamber (1) has air-blower (205), the air-out end fixedly connected with wind direction honeycomb duct (204) of air-blower (205), and wind direction honeycomb duct (204) keep away from the one end of air-blower (205) and connect the upper end in air-.
2. A combustion chamber damping device according to claim 1, characterised in that the sum of the height of the upper damping wall (2) and the height of the lower damping wall (3) is greater than the internal height of the combustion chamber (1).
3. The combustion chamber damping device of claim 1, wherein a plurality of heat dissipation holes (207) are formed in the heat dissipation layer (201), and a plurality of pressure relief holes (6) are formed in the lower damping wall (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910676479.3A CN111486471A (en) | 2019-07-25 | 2019-07-25 | Combustion chamber damping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910676479.3A CN111486471A (en) | 2019-07-25 | 2019-07-25 | Combustion chamber damping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111486471A true CN111486471A (en) | 2020-08-04 |
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ID=71794285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910676479.3A Pending CN111486471A (en) | 2019-07-25 | 2019-07-25 | Combustion chamber damping device |
Country Status (1)
| Country | Link |
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| CN (1) | CN111486471A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2209273Y (en) * | 1994-03-25 | 1995-10-04 | 刘家机 | Smoke-eliminating and dust-reducing energy-saver in furnace |
| CN204739577U (en) * | 2015-06-08 | 2015-11-04 | 海城市锅炉厂 | Biomass fuel boiler |
| CN205718426U (en) * | 2016-04-18 | 2016-11-23 | 青海黄河上游水电开发有限责任公司 | Rotary kiln combustion chamber |
| CN207962647U (en) * | 2017-12-13 | 2018-10-12 | 张振山 | A kind of refuse burning system |
-
2019
- 2019-07-25 CN CN201910676479.3A patent/CN111486471A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2209273Y (en) * | 1994-03-25 | 1995-10-04 | 刘家机 | Smoke-eliminating and dust-reducing energy-saver in furnace |
| CN204739577U (en) * | 2015-06-08 | 2015-11-04 | 海城市锅炉厂 | Biomass fuel boiler |
| CN205718426U (en) * | 2016-04-18 | 2016-11-23 | 青海黄河上游水电开发有限责任公司 | Rotary kiln combustion chamber |
| CN207962647U (en) * | 2017-12-13 | 2018-10-12 | 张振山 | A kind of refuse burning system |
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Application publication date: 20200804 |
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