CN102261648A - Downdraft biomass moulding fuel gasification boiler and installation and combustion methods thereof - Google Patents
Downdraft biomass moulding fuel gasification boiler and installation and combustion methods thereof Download PDFInfo
- Publication number
- CN102261648A CN102261648A CN2011101819331A CN201110181933A CN102261648A CN 102261648 A CN102261648 A CN 102261648A CN 2011101819331 A CN2011101819331 A CN 2011101819331A CN 201110181933 A CN201110181933 A CN 201110181933A CN 102261648 A CN102261648 A CN 102261648A
- Authority
- CN
- China
- Prior art keywords
- separating belt
- boiler
- downdraft
- water
- gas
- 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.)
- Pending
Links
Abstract
The invention relates to a downdraft biomass moulding fuel gasification boiler and installation and combustion methods thereof. Tar contains phenol, and the phenol pollutes the environment and greatly harms a human body after being diffused into air. The downdraft biomass moulding fuel gasification boiler comprises a furnace body (1), wherein an upper boiler barrel (5) with a threaded smoke tube (6) is arranged at the upper end of the furnace body; the upper boiler barrel is connected with a water-cooling fire grate (8); a separation band (11) is arranged in the furnace body; the separation band is provided with a gasification combustion device (3); a heat-resistant cast iron fixed fire grate (10) is arranged at the bottom of the furnace body, and is connected with a boiler body (2); and the upper boiler barrel is connected with a boiler smoke outlet (19). The invention is used for the downdraft biomass moulding fuel gasification boiler.
Description
Technical field:
The present invention relates to a kind of biomass fuel combustion boiler technology field, be specifically related to a kind of downdraft biomass briquette gasification boiler and preparation method is installed.
Background technology:
The significant deficiency that existing biomass briquette gasification boiler exists is that fuel gas making and gasification, and combustion can not be integrated, this has not only increased the investment and the potential safety hazard of combustion gas conveying equipment, also cause separating out tar and waste water in the gasification burning low temperature course of conveying, cause conveyance conduit and burner nozzle to stop up, had a strong impact on this technology and used.Tar contains phenol, as is dispersed in the air and can pollutes environment, and human body is caused great harm.
Summary of the invention:
The purpose of this invention is to provide a kind of is gas making, gas-purification, tar vaporization, fuel gas buring collection the downdraft biomass briquette gasification boiler of one cleverly rationally, has fundamentally overcome the deficiencies in the prior art.
Above-mentioned purpose realizes by following technical scheme:
Downdraft biomass briquette gasification boiler, its composition comprises: body of heater, the upper drum of threaded smoke pipe is equipped with in described body of heater upper end, described upper drum connects water-cooled grate, in the described body of heater separating belt is housed, described separating belt is equipped with gasified combustion apparatus, and described bottom of furnace body is equipped with the heat-resisting cast iron fixed grate, described heat-resisting cast iron fixed grate connects boiler body, and described upper drum connects boiler flue gas outlet.
Described downdraft biomass briquette gasification boiler, described gasified combustion apparatus comprises that the one group of secondary air channel that is arranged on the described separating belt is connected the overfire air jet group with gas nozzle group, described secondary air channel, described water-cooled grate has the ventilation slit, and described gas-flow straight joint crack is the 5-40 millimeter.
Described downdraft biomass briquette gasification boiler, by forming downdraft biological fuel gas generation chamber between described upper drum and the described water-cooled grate, by forming burning-point fire pilot chamber between described water-cooled grate and the described heat-resisting cast iron fixed grate, form gas combustion chamber and gas combustion chamber respectively by described separating belt both sides.
Described downdraft biomass briquette gasification boiler, described gasified combustion apparatus and described separating belt integrated setting: described gas nozzle group is directly installed on the described separating belt; The arrangement of described gas nozzle group is uniform along the whole width of separating belt, and arranging number up and down is 1-5 row; The gas nozzle number is 1-100; Described gas nozzle diameter is 10 ㎜-200 ㎜; Be installed in the gas nozzle group integrated setting on described overfire air jet group and the separating belt on the described secondary air channel: it is corresponding one by one to arrange number up and down; Overfire air jet group diameter is 10 ㎜-50 ㎜; Convection heating surface is a threaded flue.
A kind of installation method of downdraft biomass briquette gasification boiler, the space that body of heater, boiler body and boiler foundation inside surround is the boundary with the separating belt, the separating belt front is divided into downdraft biological fuel gas generation chamber, goes up burning-point fire pilot chamber, ash storage chamber, and a gas combustion chamber is established in the separating belt back; Downdraft biological fuel gas generation chamber is for being surrounded by upper drum and inner threaded flue and water-cooled grate thereof; Last burning-point fire pilot chamber is for to be surrounded by water-cooled grate and heat-resisting cast iron fixed grate; Ash storage chamber is for to be surrounded by heat-resisting cast iron fixed grate and boiler foundation; Gas combustion chamber is located at the separating belt back of the terminal bottom of water-cooled grate; Gasified combustion apparatus is made up of gas nozzle group and overfire air jet group, and gasified combustion apparatus is arranged on the separating belt of the terminal bottom of water-cooled grate, and is uniform along the whole width of separating belt; Secondary air channel is embedded in the separating belt along the separating belt width; The overfire air jet group, be installed on the secondary air channel; The threaded flue of installing in the upper drum is a convection heating surface; Boiler flue gas outlet is installed in the exit of upper drum and threaded flue; Be provided with refuelling fire door and pilot chamber fire door and Hui Men in the front portion of body of heater.
The combustion method of downdraft biomass briquette gasification boiler, the fuel gas flow direction that produces in the downdraft biological fuel gas generation chamber is top-down, adopt the top air inlet, the threaded flue of installing in the upper drum is a convection heating surface, gasified combustion apparatus is arranged on the separating belt of the terminal bottom of water-cooled grate, uniform along the whole width of separating belt, the gas-flow straight joint crack between the water-cooled grate tube of downdraft biological fuel gas generation chamber is the 5-40 millimeter.
Beneficial effect:
1. the present invention is by brand-new structure, employing and realize brand-new combustion system, realized that fuel gas making in the stove, combustion gas pass the filtration, purification of waste heat layer, the vaporization of tar and waste water pyrolytic, the direct high-temperature gasification combustion integrative of combustion gas function, simple in structure, convenient and practical, aerogenesis is stable, burning does not need blowing out when throwing in fuel or slagging-off, fully without regnition, operation is simple, and is safe and reliable.Be applicable to any biomass molding fuel.
The present invention is gas making, gas-purification, tar vaporization, fuel gas buring collection an one cleverly rationally, has fundamentally overcome the deficiencies in the prior art.
The present invention is provided with the refuelling fire door and the pilot chamber fire door makes this product when adding fuel fill, makes furnace temperature loss fewer of this product, and the pilot chamber fire door makes this product can disposable fuel up more than other body of heater.
Description of drawings:
Accompanying drawing 1 is the structural representation of this product.
The specific embodiment:
Embodiment 1:
A kind of downdraft biomass briquette gasification boiler, its composition comprises: body of heater 1, the upper drum 5 of threaded smoke pipe 6 is equipped with in described body of heater 1 upper end, described upper drum 5 connects water-cooled grate 8, described body of heater lower end connects boiler foundation 4, separating belt 11 is housed in the described body of heater, described separating belt is equipped with gasified combustion apparatus 3, heat-resisting cast iron fixed grate 10 is equipped with in described boiler foundation top, described heat-resisting cast iron fixed grate connects boiler body 2, and described upper drum connects boiler flue gas outlet 19.
Embodiment 2:
Embodiment 1 described downdraft biomass briquette gasification boiler, described gasified combustion apparatus 3 comprises one group of secondary air channel 14 and gas nozzle group 12, described secondary air channel connects overfire air jet group 13.
Embodiment 3:
Embodiment 1 described downdraft biomass briquette gasification boiler, described body of heater the place ahead are equipped with one group of refuelling fire door 16, pilot chamber fire door 20 and ash door 17.
Embodiment 4:
Embodiment 1 described downdraft biomass briquette gasification boiler, surround downdraft biological fuel gas generation chamber 7 by described body of heater and described upper drum and described separating belt and described water-cooled grate, surround burning-point fire pilot chamber 9 by described body of heater and described heat-resisting cast iron fixed grate and described separating belt and described water-cooled grate, surround ash storage chamber 18 by described body of heater and described boiler foundation and described separating belt and described heat-resisting cast iron fixed grate, surround gas combustion chamber 15 by described body of heater and described separating belt, surround burning-point fire pilot chamber by described downdraft biological fuel gas generation chamber and described water-cooled grate and form gas combustion chamber.
Embodiment 5:
A kind of installation method of downdraft biomass briquette gasification boiler, the space that body of heater, boiler body and boiler foundation inside surround is the boundary with the separating belt, the separating belt front is divided into downdraft biological fuel gas generation chamber, goes up burning-point fire pilot chamber, ash storage chamber, and a gas combustion chamber is established in the separating belt back; Downdraft biological fuel gas generation chamber is for being surrounded by upper drum and inner threaded flue and water-cooled grate thereof; Last burning-point fire pilot chamber is for to be surrounded by water-cooled grate and heat-resisting cast iron fixed grate; Ash storage chamber is for to be surrounded by heat-resisting cast iron fixed grate and boiler foundation; Gas combustion chamber is located at the separating belt back of the terminal bottom of water-cooled grate; Gasified combustion apparatus is made up of gas nozzle group and overfire air jet group, and gasified combustion apparatus is arranged on the separating belt of the terminal bottom of water-cooled grate, and is uniform along the whole width of separating belt; Secondary air channel is embedded in the separating belt along the separating belt width; The overfire air jet group, be installed on the secondary air channel; The threaded flue of installing in the upper drum is a convection heating surface; Boiler flue gas outlet is installed in the exit of upper drum and threaded flue; Be provided with refuelling fire door and pilot chamber fire door and Hui Men in the front portion of body of heater.
Embodiment 6:
The installation method of embodiment 5 described downdraft biomass briquette gasification boilers, gasified combustion apparatus and separating belt integrated setting, the gas nozzle group directly designs on separating belt; The arrangement of gas nozzle group is uniform along the whole width of separating belt, and arranging number up and down is 1-5 row; The gas nozzle number is 1-100; The gas nozzle diameter is 10 ㎜-200 ㎜; Be installed in overfire air jet group on the secondary air channel and the gas nozzle group integrated setting on the separating belt, number is corresponding one by one, and it is corresponding one by one to arrange number up and down; Overfire air jet group diameter is 10 ㎜-50 ㎜; Convection heating surface is a threaded flue.
Embodiment 7:
The combustion method of embodiment 5 or 6 described downdraft biomass briquette gasification boilers, the fuel gas flow direction that produces in the downdraft biological fuel gas generation chamber is top-down, and the gas-flow straight joint crack between the water-cooled grate tube of downdraft biological fuel gas generation chamber is the 5-40 millimeter.
Embodiment 8:
The described downdraft biomass briquette gasification of the foregoing description boiler is made up of body of heater, boiler body, downdraft biomass molding fuel gasification combustion device and boiler foundation; Boiler body is made up of the threaded flue in water-cooling wall, water-cooled grate, collection case, down-comer, upper drum and the upper drum and blow-off pipe, confession (vapour) return pipe etc.; Downdraft biomass molding fuel gasification combustion device is made up of gas nozzle group and overfire air jet group; Boiler foundation is welded to form by shaped steel.
Downdraft biological fuel gas generation chamber is arranged between upper drum and the water-cooled grate; In the water-cooled grate bottom heat-resisting cast iron fixed grate is set, burning-point fire pilot chamber is set between water-cooled grate and heat-resisting cast iron fixed grate; Be provided with separating belt in the terminal bottom of water-cooled grate boiler is divided into combustion gas generation chamber and gas combustion chamber, promptly partition wall is anterior goes up burning-point fire pilot chamber for the combustion gas generation chamber reaches, and the partition wall rear portion is a gas combustion chamber; The water-cooled grate of downdraft biological fuel gas generation chamber is established the ventilation slit; The gas nozzle group of gas combustion apparatus and overfire air jet group all are arranged on the separating belt of the terminal bottom of water-cooled grate, and they are along the whole width of separating belt, and plurality of rows is uniform up and down.In downdraft biological fuel gas generation chamber front the refuelling fire door is set; Burning-point fire pilot chamber fire door is set between water-cooled grate and heat-resisting cast iron fixed grate; Below being positioned at fixed grate on the base, be provided with the ash door; Fire door and ash door wait the front that all is arranged at boiler.
The space that body of heater, boiler body and boiler foundation inside surround is the boundary with the separating belt, and the separating belt front is divided into three Room, upper, middle and lower, and a rearmounted chamber is established in the separating belt back.Last chamber is by the threaded flue of upper drum and inside thereof and the space that water-cooled grate surrounds, i.e. downdraft biological fuel gas generation chamber; Burning-point fire pilot chamber is promptly gone up in the space of middle chamber for being surrounded by water-cooled grate and heat-resisting cast iron fixed grate; The space of following chamber for surrounding, i.e. ash storage chamber by heat-resisting cast iron fixed grate and boiler foundation.Rearmounted chamber is located at the separating belt back of the terminal bottom of water-cooled grate, and this space is a gas combustion chamber, and promptly burning-point fire pilot chamber and ash storage chamber are gone up in the separating belt front for the combustion gas generation chamber reaches, and the separating belt back is a gas combustion chamber; Gasified combustion apparatus is made up of gas nozzle group and overfire air jet group, and they all are arranged on the separating belt of the terminal bottom of water-cooled grate, and plurality of rows is uniform about being along the whole width of separating belt; Secondary air channel is embedded in the separating belt along the separating belt width; The overfire air jet group is installed on the secondary air channel; The threaded flue of installing in the upper drum is a convection heating surface; Boiler flue gas outlet is installed in the exit of upper drum and threaded flue; Be provided with refuelling fire door and pilot chamber fire door and ash door in the front portion of body of heater.
Claims (6)
1. downdraft biomass briquette gasification boiler, its composition comprises: body of heater, it is characterized in that: the upper drum of threaded smoke pipe is equipped with in described body of heater upper end, described upper drum connects water-cooled grate, in the described body of heater separating belt is housed, described separating belt is equipped with gasified combustion apparatus, and described bottom of furnace body is equipped with the heat-resisting cast iron fixed grate, described heat-resisting cast iron fixed grate connects boiler body, and described upper drum connects boiler flue gas outlet.
2. downdraft biomass briquette gasification boiler according to claim 1, it is characterized in that: described gasified combustion apparatus comprises that the one group of secondary air channel that is arranged on the described separating belt is connected the overfire air jet group with gas nozzle group, described secondary air channel, described water-cooled grate has the ventilation slit, and described gas-flow straight joint crack is the 5-40 millimeter.
3. downdraft biomass briquette gasification boiler according to claim 1 and 2, it is characterized in that: by forming downdraft biological fuel gas generation chamber between described upper drum and the described water-cooled grate, by forming burning-point fire pilot chamber between described water-cooled grate and the described heat-resisting cast iron fixed grate, form gas combustion chamber and gas combustion chamber respectively by described separating belt both sides.
4. downdraft biomass briquette gasification boiler according to claim 2 is characterized in that: described gasified combustion apparatus and described separating belt integrated setting: described gas nozzle group is directly installed on the described separating belt; The arrangement of described gas nozzle group is uniform along the whole width of separating belt, and arranging number up and down is 1-5 row; The gas nozzle number is 1-100; Described gas nozzle diameter is 10 ㎜-200 ㎜; Be installed in the gas nozzle group integrated setting on described overfire air jet group and the separating belt on the described secondary air channel: it is corresponding one by one to arrange number up and down; Overfire air jet group diameter is 10 ㎜-50 ㎜; Convection heating surface is a threaded flue.
5. the installation method of a downdraft biomass briquette gasification boiler, it is characterized in that: the space that body of heater, boiler body and boiler foundation inside surround is the boundary with the separating belt, the separating belt front is divided into downdraft biological fuel gas generation chamber, goes up burning-point fire pilot chamber, ash storage chamber, and a gas combustion chamber is established in the separating belt back; Downdraft biological fuel gas generation chamber is for being surrounded by upper drum and inner threaded flue and water-cooled grate thereof; Last burning-point fire pilot chamber is for to be surrounded by water-cooled grate and heat-resisting cast iron fixed grate; Ash storage chamber is for to be surrounded by heat-resisting cast iron fixed grate and boiler foundation; Gas combustion chamber is located at the separating belt back of the terminal bottom of water-cooled grate; Gasified combustion apparatus is made up of gas nozzle group and overfire air jet group, and gasified combustion apparatus is arranged on the separating belt of the terminal bottom of water-cooled grate, and is uniform along the whole width of separating belt; Secondary air channel is embedded in the separating belt along the separating belt width; The overfire air jet group, be installed on the secondary air channel; The threaded flue of installing in the upper drum is a convection heating surface; Boiler flue gas outlet is installed in the exit of upper drum and threaded flue; Be provided with refuelling fire door and pilot chamber fire door and Hui Men in the front portion of body of heater.
6. combustion method that uses the described downdraft biomass briquette gasification of claim 1-4 boiler, it is characterized in that: the fuel gas flow direction that produces in the downdraft biological fuel gas generation chamber is top-down, adopt the top air inlet, the threaded flue of installing in the upper drum is a convection heating surface, gasified combustion apparatus is arranged on the separating belt of the terminal bottom of water-cooled grate, uniform along the whole width of separating belt, the gas-flow straight joint crack between the water-cooled grate tube of downdraft biological fuel gas generation chamber is the 5-40 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101819331A CN102261648A (en) | 2011-06-30 | 2011-06-30 | Downdraft biomass moulding fuel gasification boiler and installation and combustion methods thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101819331A CN102261648A (en) | 2011-06-30 | 2011-06-30 | Downdraft biomass moulding fuel gasification boiler and installation and combustion methods thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102261648A true CN102261648A (en) | 2011-11-30 |
Family
ID=45008394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101819331A Pending CN102261648A (en) | 2011-06-30 | 2011-06-30 | Downdraft biomass moulding fuel gasification boiler and installation and combustion methods thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102261648A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234195A (en) * | 2013-04-18 | 2013-08-07 | 安徽天焱新能源股份有限公司 | Biomass fuel burner |
| CN105402720A (en) * | 2015-11-12 | 2016-03-16 | 广西诚顺节能环保科技有限公司 | Biomass gasification combustion environment-friendly boiler |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006117579A1 (en) * | 2005-05-02 | 2006-11-09 | FOCK, József | Method and apparatus for gasifying and burning pellets made from herbaceous plants |
| CN1900590A (en) * | 2006-06-16 | 2007-01-24 | 周开根 | Process and its device for clean burning and value gaining burning of solid fuel |
| CN1916490A (en) * | 2006-08-15 | 2007-02-21 | 周开根 | Smokeless burning technique and equipment with fire fontanel being setup inside furnace |
| CN201074840Y (en) * | 2007-08-20 | 2008-06-18 | 李万春 | Horizontal water-fire pipe dual-fire-grate inverse-burning boiler |
| CN201526955U (en) * | 2009-09-24 | 2010-07-14 | 山东百川同创能源有限公司 | Dedicated direct combustion boiler for biomass |
| CN202182554U (en) * | 2011-06-30 | 2012-04-04 | 黑龙江长志机械电器制造有限公司 | Downdraft biomass molding fuel gasification boiler |
-
2011
- 2011-06-30 CN CN2011101819331A patent/CN102261648A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006117579A1 (en) * | 2005-05-02 | 2006-11-09 | FOCK, József | Method and apparatus for gasifying and burning pellets made from herbaceous plants |
| CN1900590A (en) * | 2006-06-16 | 2007-01-24 | 周开根 | Process and its device for clean burning and value gaining burning of solid fuel |
| CN1916490A (en) * | 2006-08-15 | 2007-02-21 | 周开根 | Smokeless burning technique and equipment with fire fontanel being setup inside furnace |
| CN201074840Y (en) * | 2007-08-20 | 2008-06-18 | 李万春 | Horizontal water-fire pipe dual-fire-grate inverse-burning boiler |
| CN201526955U (en) * | 2009-09-24 | 2010-07-14 | 山东百川同创能源有限公司 | Dedicated direct combustion boiler for biomass |
| CN202182554U (en) * | 2011-06-30 | 2012-04-04 | 黑龙江长志机械电器制造有限公司 | Downdraft biomass molding fuel gasification boiler |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234195A (en) * | 2013-04-18 | 2013-08-07 | 安徽天焱新能源股份有限公司 | Biomass fuel burner |
| CN105402720A (en) * | 2015-11-12 | 2016-03-16 | 广西诚顺节能环保科技有限公司 | Biomass gasification combustion environment-friendly boiler |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103644562A (en) | Combined type energy-saving biomass fuel boiler | |
| CN102261648A (en) | Downdraft biomass moulding fuel gasification boiler and installation and combustion methods thereof | |
| CN202182554U (en) | Downdraft biomass molding fuel gasification boiler | |
| CN204901741U (en) | Two -stage accent wind furnace that application is all -trans and is burnt fin formula water pipe grate | |
| CN208139282U (en) | A kind of arragement construction of refuse incinerator biogas burner | |
| CN202808700U (en) | Air branching device for primary air intake of heat recovery coke oven | |
| CN202092302U (en) | Horizontal chamber combustion biomass boiler | |
| CN202177095U (en) | D-shaped boiler cavity | |
| CN102121693B (en) | Dioxygen coal gasifying vortex type burning smokeless boiler | |
| CN205299592U (en) | Overgrate air device of domestic waste grate furnace | |
| CN101603684A (en) | A kind of trace oil igniting coal dust firing device for multiple oil guns | |
| CN101608799B (en) | Straw briquette gasification dual-swirl burning furnace | |
| CN205717141U (en) | A kind of Quick heating type boiler | |
| CN103175224A (en) | Energy-saving furnace | |
| CN205579541U (en) | High -efficient low nitrogen gas burner of living beings | |
| CN205383658U (en) | Steam cauldron stove | |
| CN204880685U (en) | Four currenting direction inside boilers | |
| CN203177440U (en) | Rotational flow burning secondary burning-supporting boiler | |
| CN106152113B (en) | A kind of flue gas recirculation system of coal-powder boiler | |
| CN103644649A (en) | Atmospheric pressure hot water biomass boiler with semi-gasification combustion feature | |
| CN203927873U (en) | A kind of energy-conservation chain grate boiler | |
| CN202216386U (en) | Double-hearth coal gasification boiler | |
| CN203517764U (en) | Waste-steam burner for W-shaped flame boiler | |
| CN202675588U (en) | Energy-saving environmental-friendly boiler | |
| CN202938363U (en) | Combined type coal-to-gas combustion heating furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: HEILONGJIANG CHANGHAO ENERGY ENVIRONMENTAL PROTECT Free format text: FORMER OWNER: HEILONGJIANG CHANGZHI MACHINERY AND ELECTRIC APPLIANCE MANUFACTURING CO., LTD. Effective date: 20140226 |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20140226 Address after: 150000 Xinhua Village, Xinxing village, Shuangcheng City, Heilongjiang, Harbin Applicant after: Heilongjiang Changhao Energy Environmental Protection Equipment Co., Ltd. Address before: Wanggang 150000 Heilongjiang city in Harbin Province double Red Road No. 38 Applicant before: Heilongjiang Changzhi Machinery and Electric Appliance Manufacturing Co., Ltd. |
|
| TA01 | Transfer of patent application right | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111130 |