CN109323290A - Counter-combustion coal stove and its secondary air-distributing device - Google Patents
Counter-combustion coal stove and its secondary air-distributing device Download PDFInfo
- Publication number
- CN109323290A CN109323290A CN201811475959.5A CN201811475959A CN109323290A CN 109323290 A CN109323290 A CN 109323290A CN 201811475959 A CN201811475959 A CN 201811475959A CN 109323290 A CN109323290 A CN 109323290A
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- Prior art keywords
- wind path
- counter
- secondary air
- air
- combustion coal
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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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- 239000003245 coal Substances 0.000 title claims abstract description 61
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 37
- 238000010411 cooking Methods 0.000 claims abstract description 34
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000003546 flue gas Substances 0.000 claims abstract description 27
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000004891 communication Methods 0.000 abstract description 5
- 239000003344 environmental pollutant Substances 0.000 abstract description 4
- 231100000719 pollutant Toxicity 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 239000000446 fuel Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000003034 coal gas Substances 0.000 description 2
- 238000006477 desulfuration reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000002574 poison Substances 0.000 description 2
- 231100000614 poison Toxicity 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical class [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 210000000232 gallbladder Anatomy 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24B—DOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
- F24B1/00—Stoves or ranges
- F24B1/02—Closed stoves
-
- 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
- F23L9/00—Passages or apertures for delivering secondary air for completing combustion of fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24B—DOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
- F24B1/00—Stoves or ranges
- F24B1/18—Stoves with open fires, e.g. fireplaces
- F24B1/191—Component parts; Accessories
Abstract
The invention discloses a kind of secondary air-distributing devices for counter-combustion coal stove, including being separately positioned on cooking quirk two sides and the first wind path and the second wind path that are laterally extended, the two is connected to by intermediate wind path, and first wind path and second wind path all have the multiple air holes for leading to the cooking quirk；Second wind path is also connected to vertically arranged third wind path, and the bottom of the third wind path is in communication with the outside by overfiren air port.In this way, being mixed from the Secondary Air flowed out in the air holes with the flue gas in the cooking quirk, flue gas, jet-black burn-up efficiency is improved, and reduce the discharge of the pollutants such as jet-black, CO, also improve stove efficiency of combustion.The invention discloses a kind of counter-combustion coal stoves including above-mentioned secondary air-distributing device.
Description
Technical field
The present invention relates to Domestic coal stove technical field more particularly to a kind of secondary air-distributing devices.The invention further relates to
A kind of counter-combustion coal stove including above-mentioned secondary air-distributing device.
Background technique
In China rural area and suburban area, at least 200,000,000 people use the coal heating mode of relative distribution, not only efficiency
It is low, seriously polluted, and the influence to environment is several times as much as ratio shared by its fuel consumption.
Main reason is that the combustion process of Domestic coal stove all has periodicity, burning initial stage is easy lack of air, coal
The coal gas that pyrolytic gasification generates is unable to full combustion, a large amount of to poison with combustible component with flue gas emission, causes environmental pollution and energy
Amount loss；Late combustion coal seam is thinned, and excessive air can reduce furnace temperature and heat transfer efficiency again, and increase heat loss due to exhaust gas.Have
The type of furnace burning of coal efficiency is only improved by high-temperature oxygen-enriched mode, but can increase nitrogen oxides (NOx) discharge.Separately
Outside, improving ignition temperature also will increase desulfurization back reaction, reduce desulfuration in furnace efficiency.Therefore, jet-black, CO and NOx, SO2 are released
Coupling emission problem be long-standing technological difficulties in combustion technology.
Currently, Domestic coal stove mostly uses positive burn and instead two kinds of principles of burning.
Mostly using common positive burning principle, air enters Domestic coal stove from furnace bottom, passes through entire burner hearth, burning
Process has periodically, and burning initial stage is easy lack of air, and the coal gas of coal pyrolytic gasified generation is unable to full combustion, a large amount of to poison
With combustible component with flue gas emission, environmental pollution and energy loss are caused；Late combustion coal seam is thinned, and excessive air can drop again
Low furnace temperature and heat transfer efficiency, and increase heat loss due to exhaust gas.Some type of furnaces only improve burning of coal by high-temperature oxygen-enriched mode
Efficiency, but discharged nitrous oxides can be increased.
Anti- principle of burning refers to that high-temperature flue gas is taken out some or all low-temperature space heating for being sent to burner hearth does not fire
The coal of burning so that coal be easy burning, burning more thoroughly.Benefit is that fuel availability is relatively high, ash content carbon ratio
It is lower.But more return structures need to be used by instead burning principle stove, and stove volume is big, and it is at high cost, it is unfavorable for promoting, uses.
Summary of the invention
The object of the present invention is to provide a kind of secondary air-distributing device for counter-combustion coal stove, can with improving combustion efficiency,
Reduce pollutant emission.It is a further object of the present invention to provide a kind of counter-combustion coal stoves.
To achieve the above object, the present invention provides a kind of secondary air-distributing devices of counter-combustion coal stove, including are respectively set
The first wind path and the second wind path in cooking quirk two sides and being laterally extended, the two are connected to by intermediate wind path, and described first
Wind path and second wind path all have the multiple air holes for leading to the cooking quirk；Second wind path also with it is vertically arranged
The connection of third wind path, the bottom of the third wind path is in communication with the outside by overfiren air port.
Preferably, the air-out direction of the air holes and the angle in flow of flue gas direction in the cooking quirk are obtuse angle.
Preferably, first wind path and second wind path all have the wall surface of oblique lower section, and the air holes is opened in
On the wall surface.
Preferably, multiple air holes are evenly distributed.
Preferably, first wind path and second wind path protrude from the side wall of the cooking quirk, and the two it
Between the pass area that is formed not less than the chimney of stove sectional area.
Preferably, first wind path and second wind path are respectively positioned in the cooking burner and the cooking quirk of stove
Between coal-fired extreme higher position.
Preferably, the bottom setting of the third wind path is kept off for blocking or opening the overfiren air port of the overfiren air port
Plate.
The present invention also provides a kind of counter-combustion coal stoves, including secondary air-distributing device described in any of the above embodiments.
Secondary air-distributing device provided by the present invention, including be separately positioned on cooking quirk two sides and be laterally extended
One wind path and the second wind path, the two are connected to by intermediate wind path, and first wind path and second wind path all have and lead to institute
State multiple air holes of cooking quirk；Second wind path is also connected to vertically arranged third wind path, the bottom of the third wind path
Portion is in communication with the outside by overfiren air port.In this way, from the flue gas in the Secondary Air and the cooking quirk flowed out in the air holes
It is mixed, improves flue gas, jet-black burn-up efficiency, and reduce the discharge of the pollutants such as jet-black, CO, also improve stove combustion
Burn efficiency.
In further improved scheme, flow of flue gas direction in the air-out direction of the air holes and the cooking quirk
Angle is obtuse angle, and it is more sufficient disorderly that this forms the Secondary Air flowed out in the air holes with the flue gas in the cooking quirk
Stream, mixed effect are more preferable.
Counter-combustion coal stove provided by the present invention has the advantages that corresponding, repeats no more.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the structural schematic diagram of counter-combustion coal stove provided by the present invention；
Fig. 2 is the structural schematic diagram of the secondary wind path of counter-combustion coal stove provided by the present invention；
Fig. 3 is the air holes set-up mode schematic diagram of counter-combustion coal stove provided by the present invention.
Appended drawing reference of the Fig. 1 into Fig. 3 is as follows:
1- coal filling hole；2- coal store；3- fire grate；4- cooking quirk；5- flue；6- smoke box；7- chimney；8- ash bucket；9- is resistance to
Fiery material；Wind path among 10-；102- air holes；11- induced wind path；The first wind path of 13-；The second wind path of 14-；15- third wind path；
16- overfiren air port；20- water return outlet；The first sink of 21-；The second sink of 22-；23- third sink；24- water pipe；25- water outlet.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-Fig. 3 is please referred to, Fig. 1 is the structural schematic diagram of counter-combustion coal stove provided by the present invention；Fig. 2 is institute of the present invention
The structural schematic diagram of the secondary wind path of the counter-combustion coal stove of offer；Fig. 3 is that the air holes of counter-combustion coal stove provided by the present invention is set
Set schematic diagram.
In the first specific embodiment, counter-combustion coal stove provided by the invention, furnace body is by liner and two layers of outer gallbladder
Structure is constituted, and can be both made using steel plate；The two is tightly connected, to form recirculated water water jacket.
The coal store 2 of counter-combustion coal stove can be formed between the first sink 21 and stove antetheca, the furnace body antetheca
Top is equipped with coal filling hole 1, and fire grate 3 can be set in the lower section of cooking quirk 4 and coal store 2, and ash bucket can be set in the bottom of fire grate 3
8.Refractory material 9 can also be arranged in the bottom surrounding of cooking quirk 4 and coal store 2.
The first sink 21 and the second sink 22 can be respectively set in the two sides of cooking quirk 4, in this way in the mistake of heating cooker
The water of the first sink 21 and the second sink 22 will be also heated in journey, improve fuel utilization efficiency.
Cooking quirk 4 is also connected to flue 5, and the two sides of flue 5 are respectively the second sink 22 and third sink 23；In this way, high
Warm flue gas is not directly entered chimney 7 after heating cooker, but has obtained further utilization, the thermal efficiency obtained into
One step improves.
Smoke box 6 is located at the other side of third sink 23 and is connected to flue 5, therefore the flue gas that flue 5 is discharged will enter cigarette
Case 6, and water pipe 24 therein is heated, so that the thermal efficiency is further improved.
First sink 21, the second sink 22, third sink 23 and water pipe 24 are connected to the water jacket, are followed to be formed
Ring.Furnace body also has water return outlet 20 and water outlet 25.
The high-temperature flue gas of above-mentioned counter-combustion coal stove, can be to related water while the heating cooker of main heat exchange face and later
Slot and water pipe are repeatedly reheated, and are realized the multiple utilization of high-temperature flue gas, are significantly improved the thermal efficiency.
In another embodiment, the structure inside coal store 2 can also be further improved.
Induced wind path 11 and wind-guiding wind path can be set in coal store 2, wherein the air inlet and fresh air of induced wind path 11
Source connection, air outlet are located at the top of coal store 2.
The air inlet of the wind-guiding wind path is similarly positioned in the top of coal store 2, and air outlet is located at the bottom of coal store 2.Draw
Wind wind path 11 and the wind-guiding wind path can be located at the two sides of coal store 2, the essentially vertical extension of the two.
The air inlet of fresh air self-induced-air wind path 11 from new wind regime reaches the top of coal store 2, after being mixed with flue gas by
2 bottom of coal store is reached via wind-guiding wind path, so that the fuel of hot spots be made more fully to be burnt.In this way, coal storage
Flue gas in storehouse 2 can constantly import hot spots, reduce the flue gas assembled in coal store 2, and then reduce in coal store 2
The generation of tar.
During coal, coal filling hole 1 opens that coal store 2 is made to be in communication with the outside, and flue gas therein can be more
It moves smoothly through wind-guiding wind path and enters hot spots, equally can be avoided flue gas and escape.
As previously mentioned, the air inlet of induced wind path 11 is connected to new wind regime, it can be the directly connection external world, be also possible to connect
Lead to secondary wind path.
In another embodiment specific implementation mode, the Secondary Air circuit of counter-combustion coal stove provided by the present invention includes the first wind
Road 13 and the second wind path 14, the two is separately positioned on 4 two sides of cooking quirk, and generally laterally extends.
First wind path 13 is connected with the second wind path 14 by intermediate wind path 10, and Fig. 2 is to overlook visual angle.Second wind path 14 is also
It is connected to the third wind path 15 being substantially vertically arranged, the bottom setting of third wind path 15 is in communication with the outside by overfiren air port 16.
The bottom of third wind path 15 may be provided for blocking or opening the overfiren air port baffle of overfiren air port 16；Certainly, it is not provided with
Baffle is also possible.
First wind path 13 and the second wind path 14 all have multiple air holes 102, and air holes 102 leads to cooking quirk 4.
The air-out direction of air holes 102 obviously will not be parallel with flow of flue gas direction in cooking quirk 4, therefore will be with cooking fire
Flue gas in road 4 forms turbulent flow, and flue gas will be mixed with Secondary Air, improve flue gas utilization efficiency, reduces jet-black, CO etc.
The discharge of pollutant improves stove and prolongs burning efficiency.
Flue gas and Secondary Air is mixed when flow of flue gas direction forms obtuse angle in the air-out direction of air holes 102 and cooking quirk 4
Close better effect.
In order to further increase the effect that flue gas is mixed with Secondary Air, the first wind path 13 and the second wind path 14 can also be set
To protrude from the side wall of cooking quirk 4, and the pass area formed between the two is not less than the sectional area of the chimney 7 of stove.
First wind path 13 and the second wind path 14 can all have the wall surface of oblique lower section, so as to open up air holes 102
In on the wall surface.Multiple air holes 102 can be evenly distributed.
First wind path 13, the second wind path 14 and third wind path 15 can be bent by general steel plate and be realized, product can be used
The leftover bits and pieces that material of main part generates when processing, cost are lower.
The first wind path is arranged in region between extreme higher position that can be coal-fired in the cooking burner and cooking quirk 4 of stove
13 and second wind path 14 can reduce between burning position and cooker in this way, air holes 102 is located on coal-fired extreme higher position
Distance, to improve cooking intensity of fire.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
Used herein a specific example illustrates the principle and implementation of the invention, and above embodiments are said
It is bright to be merely used to help understand method and its core concept of the invention.It should be pointed out that for the ordinary skill of the art
, without departing from the principle of the present invention, can be with several improvements and modifications are made to the present invention for personnel, these improvement
It is also fallen within the protection scope of the claims of the present invention with modification.
Claims (8)
1. a kind of secondary air-distributing device of counter-combustion coal stove, which is characterized in that including be separately positioned on cooking quirk (4) two sides and
The first wind path (13) and the second wind path (14) being laterally extended, the two are connected to by intermediate wind path (10), first wind path
(13) and second wind path (14) all has the multiple air holes (102) for leading to the cooking quirk (4)；Second wind path
(14) it is also connected to vertically arranged third wind path (15), the bottom of the third wind path (15) passes through overfiren air port (16) and outer
Boundary's connection.
2. the secondary air-distributing device of counter-combustion coal stove as described in claim 1, which is characterized in that the air holes (102) goes out
The angle in flow of flue gas direction is obtuse angle in wind direction and the cooking quirk (4).
3. the secondary air-distributing device of counter-combustion coal stove as claimed in claim 2, which is characterized in that first wind path (13) and
Second wind path (14) all has the wall surface of oblique lower section, and the air holes (102) is opened on the wall surface.
4. the secondary air-distributing device of counter-combustion coal stove as claimed in claim 3, which is characterized in that multiple air holes (102)
It is evenly distributed.
5. the secondary air-distributing device of counter-combustion coal stove according to any one of claims 1-4, which is characterized in that first wind
Road (13) and second wind path (14) protrude from the side wall of the cooking quirk (4), and the pass face formed between the two
Sectional area of the product not less than the chimney (7) of stove.
6. the secondary air-distributing device of counter-combustion coal stove as claimed in claim 5, which is characterized in that first wind path (13) and
Second wind path (14) is respectively positioned in the cooking burner and the cooking quirk (4) of stove between coal-fired extreme higher position.
7. the secondary air-distributing device of counter-combustion coal stove as claimed in claim 6, which is characterized in that the third wind path (15)
The overfiren air port baffle for blocking or opening the overfiren air port (16) is arranged in bottom.
8. a kind of counter-combustion coal stove, which is characterized in that including such as described in any item secondary air-distributing devices of claim 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811475959.5A CN109323290A (en) | 2018-12-04 | 2018-12-04 | Counter-combustion coal stove and its secondary air-distributing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811475959.5A CN109323290A (en) | 2018-12-04 | 2018-12-04 | Counter-combustion coal stove and its secondary air-distributing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109323290A true CN109323290A (en) | 2019-02-12 |
Family
ID=65256112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811475959.5A Pending CN109323290A (en) | 2018-12-04 | 2018-12-04 | Counter-combustion coal stove and its secondary air-distributing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109323290A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1587799A (en) * | 2004-07-22 | 2005-03-02 | 华中科技大学 | Device and method for w shape flame boiler completely burning |
| CN203177234U (en) * | 2013-03-15 | 2013-09-04 | 甘肃新农生态能源环保科技有限公司 | Biomass furnace using both firewood and coal as fuel |
| CN203642240U (en) * | 2013-12-06 | 2014-06-11 | 石家庄市春燕采暖设备有限公司 | Chamber of one-chamber dual-combustion type environment-friendly energy-saving cooking hearing furnace |
| CN107435952A (en) * | 2017-09-13 | 2017-12-05 | 兖矿集团有限公司 | A kind of energy-saving environment protection fire coal cooking and heating furnace and cooking heating method and purposes |
| CN209147149U (en) * | 2018-12-04 | 2019-07-23 | 兖矿东华重工有限公司 | Counter-combustion coal stove and its secondary air-distributing device |
-
2018
- 2018-12-04 CN CN201811475959.5A patent/CN109323290A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1587799A (en) * | 2004-07-22 | 2005-03-02 | 华中科技大学 | Device and method for w shape flame boiler completely burning |
| CN203177234U (en) * | 2013-03-15 | 2013-09-04 | 甘肃新农生态能源环保科技有限公司 | Biomass furnace using both firewood and coal as fuel |
| CN203642240U (en) * | 2013-12-06 | 2014-06-11 | 石家庄市春燕采暖设备有限公司 | Chamber of one-chamber dual-combustion type environment-friendly energy-saving cooking hearing furnace |
| CN107435952A (en) * | 2017-09-13 | 2017-12-05 | 兖矿集团有限公司 | A kind of energy-saving environment protection fire coal cooking and heating furnace and cooking heating method and purposes |
| CN209147149U (en) * | 2018-12-04 | 2019-07-23 | 兖矿东华重工有限公司 | Counter-combustion coal stove and its secondary air-distributing device |
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Effective date of registration: 20190821 Address after: 273500 No. 5289 Xiwaihuan Road, Zoucheng City, Jining City, Shandong Province Applicant after: Yankuang Donghua Heavy Industry Co. Ltd. Applicant after: Yanmei Blue Sky Clean Energy Co., Ltd. Applicant after: Zoucheng Furnace Manufacturing Branch of Yankuang Donghua Heavy Industry Co., Ltd. Address before: 273500 No. 5289 Xiwaihuan Road, Zoucheng City, Jining City, Shandong Province Applicant before: Yankuang Donghua Heavy Industry Co. Ltd. Applicant before: Zoucheng Furnace Manufacturing Branch of Yankuang Donghua Heavy Industry Co., Ltd. |