CN106907716B - Garbage combustion device - Google Patents
Garbage combustion device Download PDFInfo
- Publication number
- CN106907716B CN106907716B CN201710150568.5A CN201710150568A CN106907716B CN 106907716 B CN106907716 B CN 106907716B CN 201710150568 A CN201710150568 A CN 201710150568A CN 106907716 B CN106907716 B CN 106907716B
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- Prior art keywords
- compression roller
- fixed
- furnace body
- combustion device
- shaft
- Prior art date
- 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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- 239000010813 municipal solid waste Substances 0.000 title claims abstract description 53
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 25
- 230000006835 compression Effects 0.000 claims abstract description 38
- 238000007906 compression Methods 0.000 claims abstract description 38
- 239000002699 waste material Substances 0.000 claims abstract description 12
- 239000000203 mixture Substances 0.000 claims abstract description 4
- 238000013019 agitation Methods 0.000 claims description 12
- 238000009825 accumulation Methods 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 238000013016 damping Methods 0.000 claims description 5
- 210000002445 nipple Anatomy 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 5
- 230000018044 dehydration Effects 0.000 abstract description 2
- 238000006297 dehydration reaction Methods 0.000 abstract description 2
- 238000001125 extrusion Methods 0.000 abstract description 2
- 230000007246 mechanism Effects 0.000 abstract description 2
- 239000004575 stone Substances 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 9
- 238000010438 heat treatment Methods 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- 230000036760 body temperature Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 238000001727 in vivo Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
- F23G5/033—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment comminuting or crushing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/24—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having a vertical, substantially cylindrical, combustion chamber
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
- F23G5/46—Recuperation of heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2201/00—Pretreatment
- F23G2201/80—Shredding
Abstract
The garbage combustion device of the present invention is related to a kind of incinerator, including dewatering squeezer and connected vertical helical cylinder waste incinerator, and dewatering squeezer is made of feed hopper, squeezing passage, upper compression roller and lower compression roller；Vertical helical cylinder waste incinerator be by columned furnace body, perforated cylinder, spiral porous stock guide, shaft, burner hearth fire grate and motor drive mechanism into.The garbage combustion device of the present invention, initiates multistage level pressure extrusion dehydration technique, and the extruding force grade of dewatering squeezer, adjustable height extruding force grade when humidity is big are adjusted according to the aqueous degree of rubbish.And due to the variability of rubbish composition, if running into hard thing processed（Such as wooden unit, stone）Then gap can automatically adjust size, grow dead or damage to prevent equipment.
Description
Technical field
The present invention relates to a kind of incinerator, more particularly to a kind of garbage combustion device.
Background technology
Country removes village and the samll cities and towns in town lead continuous improvement, and existing national urbanization rate reaches far away national planning
It is required that.The centralization of people in the countryside, which is lived, also causes production and living rubbish to concentrate increase, and serious " six side of rubbish occur in samll cities and towns
Problem ", rubbish are largely deposited in the processing and problem of environmental pollution of " roadside, river bank, village are at, Tian Bian, the side of a pond and room " rubbish
Also it is on the rise.
The content of the invention
The purpose of the present invention is exactly to overcome the above problem, there is provided a kind of garbage combustion device.
The garbage combustion device of the present invention, including dewatering squeezer and connected vertical helical cylinder waste incinerator,
Dewatering squeezer is made of feed hopper, squeezing passage, upper compression roller and lower compression roller, and feed hopper leads to extruding diagonally downward
Road connects, and the end of squeezing passage is discharge port, and the upper compression roller with gap is respectively equipped with above and below squeezing passage
With lower compression roller；The roll sleeve of upper compression roller is loaded in axle sleeve, and one end of its axle sleeve and slide bar is fixed, and the other end of slide bar passes through
Spring damping device is installed in equipment holder；The roll sleeve of lower compression roller loaded in axle sleeve, by supporting rack consolidated by its axle sleeve
Determine on the ground；Vertical helical cylinder waste incinerator be by columned furnace body, perforated cylinder, spiral porous stock guide, shaft,
Burner hearth fire grate and motor drive mechanism are into furnace body is fixed on ground by furnace body support, it is fixedly arranged above drying material storing box and stove
Connection, its inner top are coaxially fixed with perforated cylinder in vivo；Shaft is equipped with furnace body inner axes, the top of the shaft is in Round Porous
Spiral porous stock guide is fixed with cylinder, the bottom of shaft is connected through bottom of furnace body and transmission device with electric-motor drive；Stove
In vivo in burner hearth fire grate of the lower section twisted rotary shaft equipped with multilayer of perforated cylinder.
As a further improvement on the present invention, spring damping device is made of connector, spring and fixed sliding sleeve, is connected
Part middle part is fixed with slide bar, the one end of both ends with spring is fixed, and the other end of spring is fixed with fixed sliding sleeve both ends respectively, Gu
Determine sliding sleeve to fix with equipment holder；Jack rod sleeve is arranged in fixed sliding sleeve and is slidably matched with fixed sliding sleeve.
As a further improvement on the present invention, the side wall of upper compression roller and lower compression roller is evenly equipped with sharp curved tooth.
As a further improvement on the present invention, lower compression roller side wall is evenly equipped with leakage hole and different leakage holes mutually interconnects
It is logical.
As a further improvement on the present invention, the lower section of lower compression roller is equipped with catch basin, and the bottom of the catch basin is equipped with row
The mouth of a river.
As a further improvement on the present invention, shaft is from upper by porous shaft pipe, heat accumulation agitation ball and rotating drive shaft
Be fixedly connected sequentially composition under, and adiabatic pipe nipple is equipped between heat accumulation agitation ball and rotating drive shaft；Porous shaft Guan Yu is more
Spiral porous stock guide is fixed with the cylinder of hole；The bottom of rotating drive shaft is fixed and is passed through with the thrust bearing equipped with ground
Transmission belt is connected with electric-motor drive.
As a further improvement on the present invention, heat accumulation agitation ball outer wall distribution is fixed with agitation thorn.
As a further improvement on the present invention, furnace body is equipped with slag-drip opening at burner hearth fire grate.
As a further improvement on the present invention, the discharge port of dewatering squeezer by conveyer belt and with vertical helical cylinder rubbish
The drying material storing box connection of incinerator.
The garbage combustion device of the present invention has following advantages：1st, multistage level pressure extrusion dehydration technique is initiated, according to rubbish
Aqueous degree adjust dewatering squeezer extruding force grade, adjustable height extruding force grade when humidity is big.And due to rubbish into
The variability of part, if running into hard thing processed（Such as wooden unit, stone）Then gap can automatically adjust size, grow dead or damage to prevent equipment
It is bad；2nd, flue gas heat, which makes full use of, ensures that rubbish continued stable combustion and raising stove take off daily processing rubbish ability；3rd, in furnace body
Spiral porous stock guide uniformly dries feed technique, not only improves drying efficiency, and ensures being evenly supplied for incineration firing, prevents
Unburned refuse is excessively accumulated, pressure fire hydrant, nonflammable, reduction stove body temperature；4th, burner hearth fire grate is equipped with heat accumulation agitation ball,
When preventing that unburned refuse is excessive with steady stove body temperature, rubbish imporosity heap is dead, and not only sudden temperature drop and air are not easy to circulate,
Cause flame-out trend.The equipment can not only discharge laid in heat, and can rotational agitation rubbish increase gap and air work
It is dynamic, contribute to rubbish to burn away.
Brief description of the drawings
Fig. 1 is the sectional structure chart of the garbage combustion device of the present invention；
Fig. 2 is the sectional structure chart of the vertical helical cylinder waste incinerator of the garbage combustion device of the present invention；
Fig. 3 is the structure chart of the lower compression roller of the garbage combustion device of the present invention.
Embodiment
Below in conjunction with the accompanying drawings to the garbage combustion device of the present invention, it is described further：
The garbage combustion device of the present invention, including dewatering squeezer 1 and connected vertical helical cylinder waste incinerator
2。
Above-mentioned dewatering squeezer 1 is made of feed hopper 3, squeezing passage 4, upper compression roller 5 and lower compression roller 6.
Feed hopper 3 is connected with squeezing passage 4 diagonally downward, and the end of squeezing passage 4 is discharge port 7, squeezing passage 4
Above and below be respectively equipped with the part of upper compression roller 5 and lower compression roller 6 with gap, upper compression roller 5 and lower compression roller 6
Inside exterior a part of position squeezing passage 4, the roll sleeve of upper compression roller 5 is loaded in axle sleeve, one end of its axle sleeve and slide bar 8
Fixed, the other end of slide bar 8 is installed in equipment holder 10 by spring damping device 9, which is by even
Fitting 20, paired spring 21 and fixed sliding sleeve 22 are formed, and the middle part of connector 20 is fixed with slide bar 8, and the both ends of connector 20 are equal
Fixed with one end of spring 21, the other end of spring 21 is fixed with fixed 22 both ends of sliding sleeve respectively, and fixed sliding sleeve 22 is consolidated with equipment
Determine frame 10 to fix, so, in the case where slide bar 8 is sheathed in fixed sliding sleeve 22, slide bar 8 is slidably matched with fixed sliding sleeve 22.
The roll sleeve of lower compression roller 6 is loaded in axle sleeve, its axle sleeve is fixed on the ground by supporting rack 11, in lower compression roller
6 side walls are evenly equipped with leakage hole 24 and different leakage holes 24 and are interconnected, lower compression roller 6 can be arranged to hollow cylinder this
Sample can make different leakage holes 24 be interconnected.And the lower section of lower compression roller 6 is equipped with catch basin 25, extruded for collecting
The moisture gone out, the discharge outlet 26 being equipped with by the bottom of the catch basin 25 are discharged.
In order to catch the rubbish in squeezing passage 4, it is made to enter analysis between upper compression roller 5 and lower compression roller 6, then
The side wall of upper compression roller 5 and lower compression roller 6 is evenly equipped with sharp curved tooth 23, for catching rubbish and shredding refuse.
Vertical helical cylinder waste incinerator 2 be by columned furnace body 12, perforated cylinder 15, spiral porous stock guide 16,
Shaft 17, burner hearth fire grate 18 and motor 19 are formed.
Furnace body 12 is fixed on ground by furnace body support 13, it is fixedly arranged above drying material storing box 14 with connecting in furnace body 12
Logical, its inner top is coaxially fixed with perforated cylinder 15, dries and baffle or gear door are equipped with above and below material storing box 14, divide
Every being used.
Shaft 17 is equipped with 12 inner axes of furnace body, shaft 17 is by porous shaft pipe 27, heat accumulation agitation ball 28 and rotates
Transmission shaft 29 is fixedly connected sequentially composition from top to bottom, and heat accumulation agitation ball 28 is made for cast iron and outer wall distribution is fixed with agitation thorn
31 are used to carry out heat conduction and shredding refuse, and stir in heat accumulation and used between ball 28 and rotating drive shaft 29 equipped with adiabatic pipe nipple 30
In isolation heat, porous shaft pipe 27 is in being fixed with spiral porous stock guide 16 in perforated cylinder 15, so spiral porous guide
Plate 16 can relatively rotate under the drive of shaft 17 with perforated cylinder 15, and equivalent to one screw pump, rubbish can be spiral
Under the rotation of porous stock guide 16, out and fall on burner hearth fire grate 18 out of perforated cylinder 15, should be set in the bottom of furnace body 12
There is alignment bearing to coordinate with rotating drive shaft 29, to 29 righting of rotating drive shaft and rotating drive shaft 29 can be made to rotate,
And the bottom of rotating drive shaft 29 is fixed with the thrust bearing equipped with ground and is sequentially connected by transmission belt and motor 19.
In burner hearth fire grate 18 of the lower section twisted rotary shaft 17 equipped with multilayer of perforated cylinder 15 in furnace body 12.Furnace body 12 is in burner hearth
Slag-drip opening 32 and observation window 33 are equipped with fire grate 18, for deslagging and is observed.The top of furnace body 12 is additionally provided with smoke discharging pipe
34, which can lead to dust treatment process, or lead to dumping area, once to be dried to rubbish
It is dry.Hot water heating tube 35 is also provided with furnace body 12, which carries out hot water with the heat having more than needed in furnace body 1
Heating, can lead to the ground such as residential block and be used as heating.
Drying material storing box 14 of the discharge port 7 of dewatering squeezer 1 by conveyer belt and with vertical helical cylinder waste incinerator 2
Connection.
The garbage combustion device of the present invention, its specifically used method are as follows：
Use in advance and manually classified to rubbish and according to a certain amount of carry out portioning, then measured using moisture teller
Each part rubbish measures average moisture, then empirically adjusts the fixed position at the top of spring 21 of dewatering squeezer 1, from
And changing gap, rubbish, which enters, to be removed most of moisture after extruding after dewatering squeezer 1 and reduces volume, via transmission
The transmission devices such as band are sent into the drying material storing box 14 of vertical helical cylinder waste incinerator 2, are first passed around flue gas in furnace body 1 and are carried out
First drying, rubbish then be fed through perforated cylinder 15 and slowly sent by spiral porous stock guide 16 to lower section, this mistake
The porous circulation and heating that can make high-temperature flue gas in journey, and the steam of evaporation is extracted out, when rubbish is sent to burner hearth fire grate 18, stove
1 internal-combustion rubbish of body（Last rubbish）Heating burning is carried out to it, if the rubbish newly into stove is nonflammable or furnace body 1
When interior rubbish pushes down flame too much, the external heat release of metal ball, promotes rubbish further to burn, if incineration firing is prosperous, and stove
When temperature is high in body 1, metal ball absorbs heat, has the function that heat accumulation, the rubbish after burning can pass through 32 deslagging of slag-drip opening；
Flue gas in furnace body 1 dries rubbish after the devices such as perforated cylinder 15, spiral porous stock guide 16 are ascended into along furnace body 1
Discharged after dry by smoke discharging pipe 34.
Claims (9)
1. garbage combustion device, including dewatering squeezer（1）With connected vertical helical cylinder waste incinerator（2）, it is special
Sign is dewatering squeezer（1）It is by feed hopper（3）, squeezing passage（4）, upper compression roller（5）With lower compression roller（6）Form, into
Hopper（3）With squeezing passage diagonally downward（4）Connection, squeezing passage（4）End be discharge port（7）, squeezing passage（4）'s
Above and below be respectively equipped with the upper compression roller with gap（5）With lower compression roller（6）；Upper compression roller（5）Roll sleeve be loaded on
In axle sleeve, its axle sleeve and slide bar（8）One end fix, slide bar（8）The other end pass through spring damping device（9）Installed in equipment
Fixed frame（10）On；Lower compression roller（6）Roll sleeve loaded in axle sleeve, its axle sleeve passes through supporting rack（11）Fix on the ground；
Vertical helical cylinder waste incinerator（2）It is by columned furnace body（12）, perforated cylinder（15）, spiral porous stock guide（16）、
Shaft（17）, burner hearth fire grate（18）And motor（19）Form, furnace body（12）Pass through furnace body support（13）It is fixed on ground, it
It is fixedly arranged above drying material storing box（14）With furnace body（12）Interior connection, furnace body（12）Inner top is coaxially fixed with perforated cylinder
（15）；Furnace body（12）Shaft is equipped with inner axes（17）, the shaft（17）Top in perforated cylinder（15）Inside it is fixed with spiral
Porous stock guide（16）, shaft（17）Bottom pass through furnace body（12）Bottom and transmission device and motor（19）It is sequentially connected；
Furnace body（12）It is interior in perforated cylinder（15）Lower section twisted rotary shaft（17）Burner hearth fire grate equipped with multilayer（18）.
2. garbage combustion device according to claim 1, it is characterised in that spring damping device（9）It is by connector
（20）, paired springs（21）With fixed sliding sleeve（22）Form, connector（20）Middle part and slide bar（8）Fixed, both ends with pairs
Spring（21）One end fix, paired springs（21）The other end respectively with fixed sliding sleeve（22）Both ends are fixed, fixed sliding sleeve
（22）With equipment holder（10）It is fixed；Slide bar（8）It is sheathed on fixed sliding sleeve（22）It is interior and with fixed sliding sleeve（22）It is slidably matched.
3. garbage combustion device according to claim 1, it is characterised in that upper compression roller（5）With lower compression roller（6）Side
Wall is evenly equipped with sharp curved tooth（23）.
4. the garbage combustion device according to claim 1 or 3, it is characterised in that lower compression roller（6）Side wall is evenly equipped with leak
Hole（24）And different leakage hole（24）It is interconnected.
5. garbage combustion device according to claim 4, it is characterised in that lower compression roller（6）Lower section be equipped with catch basin
（25）, the catch basin（25）Bottom be equipped with discharge outlet（26）.
6. garbage combustion device according to claim 1, it is characterised in that shaft（17）It is by porous shaft pipe（27）, storage
Thermal agitation ball（28）And rotating drive shaft（29）Be fixedly connected sequentially composition from top to bottom, and heat accumulation agitation ball（28）Passed with rotating
Moving axis（29）Between be equipped with adiabatic pipe nipple（30）；Porous shaft pipe（27）In perforated cylinder（15）Inside it is fixed with spiral porous guide
Plate（16）；Rotating drive shaft（29）Bottom and be located at the thrust bearing on ground and fix and by transmission belt and motor（19）
It is sequentially connected.
7. garbage combustion device according to claim 6, it is characterised in that heat accumulation stirs ball（28）Outer wall distribution is fixed with
Agitation thorn（31）.
8. garbage combustion device according to claim 1, it is characterised in that furnace body（12）In burner hearth fire grate（18）Place is equipped with
Slag-drip opening（32）.
9. garbage combustion device according to claim 1, it is characterised in that dewatering squeezer（1）Discharge port（7）Pass through
Conveyer belt and with vertical helical cylinder waste incinerator（2）Drying material storing box（14）Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710150568.5A CN106907716B (en) | 2017-03-14 | 2017-03-14 | Garbage combustion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710150568.5A CN106907716B (en) | 2017-03-14 | 2017-03-14 | Garbage combustion device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106907716A CN106907716A (en) | 2017-06-30 |
| CN106907716B true CN106907716B (en) | 2018-04-13 |
Family
ID=59186377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710150568.5A Active CN106907716B (en) | 2017-03-14 | 2017-03-14 | Garbage combustion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106907716B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112664951A (en) * | 2020-12-25 | 2021-04-16 | 贺茂凤 | A concentrate incineration equipment for domestic waste |
| CN114198752B (en) * | 2021-12-13 | 2024-04-12 | 上海域德环保股份有限公司 | Efficient flue gas purifying device with garbage incineration power generation function |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3948587B2 (en) * | 1999-01-27 | 2007-07-25 | 株式会社オメガ | Waste incineration treatment system and its treatment equipment |
| JP2002079131A (en) * | 2000-09-06 | 2002-03-19 | Kubota Corp | Refuse pit equipment and refuse crushing treatment process |
| KR101000857B1 (en) * | 2008-05-27 | 2010-12-13 | (주) 텔트론 | Trash treating apparatus and method |
| CN201543452U (en) * | 2009-12-03 | 2010-08-11 | 钱尧翎 | Garbage crusher |
| CN105423309A (en) * | 2015-12-14 | 2016-03-23 | 鹤山市凤台菱精密铸造有限公司 | Combustion preheating device |
| CN205518063U (en) * | 2016-03-01 | 2016-08-31 | 赵君华 | Feeding device for garbage cracking furnaces |
| CN205481011U (en) * | 2016-03-15 | 2016-08-17 | 台州汇一贵金属贸易有限公司 | Garbage cracking furnace |
| CN205424936U (en) * | 2016-03-24 | 2016-08-03 | 江苏联兴成套设备制造有限公司 | Vertical pyrolysis gasifier |
-
2017
- 2017-03-14 CN CN201710150568.5A patent/CN106907716B/en active Active
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| Publication number | Publication date |
|---|---|
| CN106907716A (en) | 2017-06-30 |
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Address after: 163318 Heilongjiang Province, Daqing city Saertu District School District No. 3 Room 502 1 Applicant after: Li Fujun Address before: Torch high tech Zone in Heilongjiang province Daqing city street 163316 No. 40 emerging industry incubator building 4, room 808, block A Applicant before: Li Fujun |
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Effective date of registration: 20240410 Address after: Room 12112, Building 1, No. 76 Xichuan South Road, Chengxi District, Xining City, Qinghai Province, 810000 Patentee after: Qinghai Haoyang Engineering Technology Consulting Co.,Ltd. Country or region after: China Address before: 163318 Room 502, gate 1, No. 3, Xueyuan community, Sartu District, Daqing City, Heilongjiang Province Patentee before: Li Fujun Country or region before: China |