CN101122442B - Iron mineral suspended magnetic baking oven system and baking process - Google Patents

Iron mineral suspended magnetic baking oven system and baking process Download PDF

Info

Publication number
CN101122442B
CN101122442B CN2007100128024A CN200710012802A CN101122442B CN 101122442 B CN101122442 B CN 101122442B CN 2007100128024 A CN2007100128024 A CN 2007100128024A CN 200710012802 A CN200710012802 A CN 200710012802A CN 101122442 B CN101122442 B CN 101122442B
Authority
CN
China
Prior art keywords
pipeline
air
level
suspension cooler
suspension
Prior art date
Application number
CN2007100128024A
Other languages
Chinese (zh)
Other versions
CN101122442A (en
Inventor
刘鹤群
赵骏
邹成
李艳军
韩跃新
Original Assignee
沈阳鑫博工业技术发展有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 沈阳鑫博工业技术发展有限公司 filed Critical 沈阳鑫博工业技术发展有限公司
Priority to CN2007100128024A priority Critical patent/CN101122442B/en
Publication of CN101122442A publication Critical patent/CN101122442A/en
Application granted granted Critical
Publication of CN101122442B publication Critical patent/CN101122442B/en

Links

Abstract

An iron mineral suspension magnetization baking furnace system includes a suspension magnetization baking furnace, a feeding bin, an electronic quantitative feeder, a suspension pre-heater, a suspension cooler, a duster, an ahs returning system and an induced draft fan. A discharging port of the electronic quantitative feeder is connected with a feed inlet of a screw feeder through a chute. A discharging port of the screw feeder is connected with a feed inlet of the first stage suspension pre-heater. A discharging port of the second stage suspension pre-heater is connected with a feed inlet of the suspension magnetization baking furnace through a pipe. A flue gas outlet of a cyclone separator of the suspension magnetization baking furnace is connected with an inlet of the second stage suspension pre-heater. A flue gas outlet of the first stage suspension pre-heater is connected with a flue gas inlet of the duster through a pipe. A discharging port of the cyclone separator of the suspension magnetization baking furnace is connected with a feed inlet of the chute through a pipe. The discharging port of the chute is connected with a feed inlet of the first stage suspension cooler. An outlet of the duster is connected with the induced draft fan through a pipe. The invention has the advantages of complete heat recovery system and low energy consumption without production operating problems of ringing, crust, frits, etc.

Description

Iron mineral suspended magnetic baking oven system and roasting technique
Technical field
The present invention relates to a kind of iron mineral suspended magnetizing roasting device, specifically relate to one and be applicable to suspended magnetic baking oven system and the roasting technique of from siderite, limonite, goethite, bloodstone, complicated heterogeneous mixing iron ore, iron-containing slag and red mud, producing iron ore concentrate.
Background technology
The principle of magnetizing roast is the process that under the heated condition volatile substance in the refractory iron ore thing (carbon dioxide, water) is removed or di-iron trioxide wherein is reduced into tri-iron tetroxide.The magnetizing roast process of traditional processing technology realizes in shaft kiln, rotary kiln.
The shaft kiln production technology is relatively backward, is easy to generate burning and underburnt, and the iron ore reduction rate is low, can not handle the raw material that is prone to hot powder phenomenon-tion as limonite, siderite one class.
The rotary kiln production technology has overcome the above-mentioned shortcoming of shaft kiln to a certain extent, but hear rate is very high, has ring formation, skinning simultaneously, production operation problems such as frit occur.
No matter shaft kiln or rotary kiln, the production capacity of single device is all not really high.
Summary of the invention
The objective of the invention is provides a kind of iron mineral suspended magnetic baking oven system and roasting technique at above shortcomings in the known technology.
The technical scheme that adopts is:
Iron mineral suspended magnetic baking oven system comprises suspending magnetization roasting furnace, feed hopper, electronics constant feeder, suspended preheater, suspension cooler, deduster, returns ash system, air-introduced machine.
The feed hopper discharging opening be positioned at electronics constant feeder material inlet directly over or connect by chute.The discharging opening of electronics constant feeder, be positioned at the screw feeder machine inlet capable directly over, or the discharging opening of electronics constant feeder is connected with the screw feeder machine inlet capable by chute.The discharging opening of screw(-type) feeder is connected with the feeding mouth of first stage suspension preheater.Secondary suspended preheater discharging opening is connected with the feeding mouth of suspending magnetization roasting furnace by the 8th pipeline.The exhanst gas outlet of the cyclone separator of suspending magnetization roasting furnace is connected with the inlet of secondary suspended preheater by second pipeline.The exhanst gas outlet of first stage suspension preheater is connected with the smoke inlet of deduster by the 3rd pipeline.The discharge gate of the cyclone separator of suspending magnetization roasting furnace is connected with the feeding mouth that stops chute by the 5th pipeline.The discharge gate that stops chute is connected with the feeding mouth of first stage suspension cooler.The discharge gate of first stage suspension cooler is connected with the feeding mouth of secondary suspension cooler.The discharge gate of secondary suspension cooler is connected with three grades of suspension cooler feeding mouths.Three grades of suspension cooler lower ends are provided with discharge gate.The outlet of deduster is connected with air-introduced machine by the 6th pipeline, and the air-introduced machine outlet is connected with the air intake of chimney by the 7th pipeline.
Above-mentioned suspended preheater adopts the two-stage suspended preheater, and above-mentioned suspension cooler adopts three grades of suspension cooler.
Iron mineral suspended magnetic baking oven system of the present invention and roasting technique have following advantage:
1, all kinds of iron-bearing minerals of extensive treatments comprise mine tailing, slag and red mud the like waste, realize the reasonable resources utilization.
2, granular material is suspended in and carries out quick caloic transmission and drastic reduction reaction, calcining quality height in the air-flow.
3, have complete heat recovery system, energy consumption is very low.
4, no ring formation, skinning, production operation problems such as frit appear.
5, automaticity height, running rate height.
6, separate unit stove production capacity is very big, can reach 2,000,000 tons of calcining/years, thereby the unit product investment is low.
Description of drawings
Fig. 1 is the structural representation of iron mineral suspended magnetic baking oven system of the present invention.
The specific embodiment
Iron mineral suspended magnetic baking oven system, comprise suspending magnetization roasting furnace 6, two-stage suspended preheater 4 and 5, first order suspension cooler 7, second level suspension cooler 8, third level suspension cooler 9, feed hopper 1, electronics constant feeder 2, screw(-type) feeder 3, deduster 10, air-introduced machine 12, roots blower 13 and air lift mud pump 14.
The discharging opening of feed hopper 1 is connected with the feeding mouth of electronics constant feeder 2, and the discharging opening of screw(-type) feeder 3 is connected with the charging aperture of first order suspended preheater by feed pipe 16.The discharging opening of first order suspended preheater 4 is connected with the feeding mouth of second level suspended preheater 5 with second pipeline 18 through first pipeline 17, the discharging opening of second level suspended preheater 5 is connected with the charging aperture of suspending magnetization roasting furnace 6 through the 8th pipeline 24, and the exhanst gas outlet of the cyclone separator of suspending magnetization roasting furnace 6 is connected with second level suspended preheater 5 through second pipeline 18.The exhanst gas outlet of first order suspended preheater 4 is connected with the air inlet of deduster 10 through the 3rd pipeline 19, and deduster 10 is an electrostatic precipitator.The cyclone separator discharge gate of suspending magnetization roasting furnace 6 with stop chute 15 feeding mouths and be connected.Stop chute 15 discharge gates and be connected with first order suspension cooler 7 feeding mouths with the tenth pipeline 27 through the 5th pipeline 21, first order suspension cooler exhaust outlet is connected with suspending magnetization roasting furnace 6 air induction conduits through the 4th pipeline 20.First order suspension cooler discharge gate is connected with second level suspension cooler 8 charging apertures with the 12 pipeline 29 through the 11 pipeline 28, second level suspension cooler discharge gate is connected with third level suspension cooler 9 charging apertures with the 14 pipeline 31 through the 13 pipeline 30, and the lower end of suspension cooler 9 is a product offtake.Gas outlet the 6th pipeline 22 of deduster 10 is connected with the air inlet of air-introduced machine 12, is equiped with air door 11 on the 6th pipeline 22.Gas outlet the 7th pipeline 23 of air-introduced machine 12 is connected with chimney 26.The ash discharging hole of deduster 10 is connected with air lift mud pump 14 charging apertures, and roots blower 13 exhaust outlets are connected with air lift mud pump 14 air inlets, and the air lift mud pump discharge gate is connected with second level suspended preheater 5 bottom ash inlet tubes.
Iron mineral suspended magnetizing roast technology comprises following process steps:
1, crude fuel
Raw material can be a kind of in siderite, limonite, goethite, bloodstone, complicated heterogeneous mixing iron ore, iron-containing slag, the red mud, breeze, filter cake all can, it is below 200 microns that particle mean size requires.
Fuel can use coal gas, natural gas, fuel oil etc.
2, feed
Selected raw material is sent in the feed hopper 1, and the raw material in the feed hopper 1 is discharged into screw(-type) feeder 3 after 2 meterings of electronics constant feeder, be delivered in the feed pipe 16 of first stage suspension preheater 4 through screw(-type) feeder 3.
3, preheating
Material 16 is brought in the body of suspended preheater 4 and with flue gas and is separated by the road by air-flow, be mixed in the secondary suspended preheater 5 through first pipeline 17, second pipeline 18 and hot flue gas then from suspending magnetization roasting furnace, be preheated and preroast, the raw material of preroast carries out secondary separation with flue gas at this.
4, magnetizing roast
Material through preheating and preroast enters in the suspending magnetization roasting furnace 6 through the 8th pipeline 24, carries out roasting under heated condition, remove the crystallization water or carbon dioxide after, low impurity raw material roasting becomes the iron ore concentrate calcining, can be directly as product; The roasting under controlled reducing atmosphere of high impurity raw material becomes the magnetic iron ore calcining.
Sintering temperature is selected according to the kind and the character of raw material, and scope is at 300 degrees centigrade to 700 degrees centigrade.
5, material cooling
Calcining from suspending magnetization roasting furnace be discharged into cooling system after hot gas separates and cool off.Cooling is carried out in first order suspension cooler 7, second level suspension cooler 8 and third level suspension cooler 9 step by step, because of 3 grades of suspension cooler are vertically installed, compact to design, so iron ore concentrate can reach countercurrent heat exchange completely with cold air, and magnetic iron ore is oxidized to ferromagnetic γ di-iron trioxide discharges.The air of cooling usefulness is taken from atmosphere.
6, dust pelletizing system
Enter deduster 10 from the next ash-laden gas of first stage suspension preheater through the 3rd pipeline 19 and carry out dedusting, the deduster bottom is provided with air flume, by roots blower and air lift mud pump the dust of collecting is sent in the secondary suspended preheater 5 through the 9th pipeline 25, be implemented in the closed circuit dust that in the dirt system deduster is captured that returns and all reclaim.
Flue gas after the udst separation is sent into chimney 26 emptyings by air-introduced machine 12.

Claims (2)

1. iron mineral suspended magnetic baking oven system, comprise suspending magnetization roasting furnace (6), first order suspended preheater (4) and second level suspended preheater (5), first order suspension cooler (7), second level suspension cooler (8), third level suspension cooler (9), feed hopper (1), electronics constant feeder (2), screw(-type) feeder (3), deduster (10), air-introduced machine (12), roots blower (13) and air lift mud pump (14) is characterized in that:
The discharging opening of feed hopper (1) is connected with the feeding mouth of electronics constant feeder (2), and the discharging opening of screw(-type) feeder (3) is connected with the charging aperture of first order suspended preheater by feed pipe (16); The discharging opening of first order suspended preheater (4) is connected with the feeding mouth of second pipeline (18) with second level suspended preheater (5) through first pipeline (17), the discharging opening of second level suspended preheater (5) is connected through the charging aperture of the 8th pipeline (24) with suspending magnetization roasting furnace (6), and the exhanst gas outlet of suspending magnetization roasting furnace (6) cyclone separator is connected with second level suspended preheater (5) through second pipeline (18); The exhanst gas outlet of first order suspended preheater (4) is connected through the air inlet of the 3rd pipeline (19) with deduster (10), and deduster (10) is an electrostatic precipitator; The cyclone separator discharge gate of suspending magnetization roasting furnace (6) with stop chute (15) feeding mouth and be connected; Stop chute (15) discharge gate and be connected with first order suspension cooler (7) feeding mouth with the tenth pipeline (27) through the 5th pipeline (21), first order suspension cooler exhaust outlet is connected with suspending magnetization roasting furnace (6) air induction conduit through the 4th pipeline (20); First order suspension cooler (7) discharge gate is connected with second level suspension cooler (8) charging aperture with the 12 pipeline (29) through the 11 pipeline (28), second level suspension cooler (8) discharge gate is connected with third level suspension cooler (9) charging aperture with the 14 pipeline (31) through the 13 pipeline (30), and the lower end of third level suspension cooler (9) is a product offtake; Gas outlet the 6th pipeline (22) of deduster (10) is connected with the air inlet of air-introduced machine (12), is equiped with air door (11) on the 6th pipeline (22); Gas outlet the 7th pipeline (23) of air-introduced machine (12) is connected with chimney (26); The ash discharging hole of deduster (10) is connected with air lift mud pump (14) charging aperture, and roots blower (13) exhaust outlet is connected with air lift mud pump (14) air inlet, and the air lift mud pump discharge gate is connected with second level suspended preheater (5) bottom ash inlet tube.
2. the roasting technique of iron mineral suspended magnetic baking oven system is characterized in that comprising following process steps:
A, crude fuel
Raw material can be a kind of in siderite, limonite, goethite, bloodstone, complicated heterogeneous mixing iron ore, iron-containing slag, the red mud, breeze, filter cake all can, it is below 200 microns that particle mean size requires;
Fuel can use coal gas, natural gas, fuel oil;
B, feed
Selected raw material is sent in the feed hopper (1), and the raw material in the feed hopper (1) is discharged into screw(-type) feeder (3) after electronics constant feeder (2) metering, be delivered in the feed pipe (16) of first order suspended preheater (4) through screw(-type) feeder (3);
C, preheating
Material is brought in the body of first order suspended preheater (4) and with flue gas through feed pipe (16) by air-flow and is separated, be mixed in the second level suspended preheater (5) through first pipeline (17), second pipeline (18) and hot flue gas then from suspending magnetization roasting furnace, be preheated and preroast, the raw material of preroast carries out secondary separation with flue gas at this;
D, magnetizing roast
In the 8th pipeline (24) enters suspending magnetization roasting furnace (6), under heated condition, carry out roasting through the material of preheating and preroast, remove the crystallization water or carbon dioxide after, low impurity raw material roasting becomes the iron ore concentrate calcining, can be directly as product; The roasting under controlled reducing atmosphere of high impurity raw material becomes the magnetic iron ore calcining;
Sintering temperature is selected according to the kind and the character of raw material, and scope is at 300 degrees centigrade to 700 degrees centigrade;
E, material cooling
Calcining from suspending magnetization roasting furnace be discharged into cooling system after hot gas separates and cool off; Cooling is carried out in first order suspension cooler (7), second level suspension cooler (8) and third level suspension cooler (9) step by step, iron ore concentrate can reach countercurrent heat exchange completely with cold air, and magnetic iron ore is oxidized to ferromagnetic γ di-iron trioxide discharge; The air of cooling usefulness is taken from atmosphere;
F, dust pelletizing system
Enter deduster (10) from the next ash-laden gas of first order suspended preheater through the 3rd pipeline (19) and carry out dedusting, the deduster bottom is provided with air flume, by roots blower and air lift mud pump the dust of collecting is sent in the second level suspended preheater (5) through the 9th pipeline (25), be implemented in the closed circuit dust that in the dirt system deduster is captured that returns and all reclaim; Flue gas after the udst separation is sent into chimney (26) emptying by air-introduced machine (12).
CN2007100128024A 2007-09-12 2007-09-12 Iron mineral suspended magnetic baking oven system and baking process CN101122442B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2007100128024A CN101122442B (en) 2007-09-12 2007-09-12 Iron mineral suspended magnetic baking oven system and baking process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2007100128024A CN101122442B (en) 2007-09-12 2007-09-12 Iron mineral suspended magnetic baking oven system and baking process

Publications (2)

Publication Number Publication Date
CN101122442A CN101122442A (en) 2008-02-13
CN101122442B true CN101122442B (en) 2010-12-08

Family

ID=39084876

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2007100128024A CN101122442B (en) 2007-09-12 2007-09-12 Iron mineral suspended magnetic baking oven system and baking process

Country Status (1)

Country Link
CN (1) CN101122442B (en)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101289621B (en) * 2008-06-10 2014-01-01 刘鹤群 Process for preparing carbocoal, coke tar and coal gas by treating bovey coal by suspending pyrogenation device
CN101289622B (en) * 2008-06-10 2013-08-07 刘鹤群 Process for upgrading of bovey coal by solid thermal-loading suspending pyrogenation device of bovey coal
FI122306B (en) * 2009-12-11 2011-11-30 Outotec Oyj Arrangement to equalize the powdered solids feed of the SUSP FUSION OVEN
CN102382975B (en) * 2011-10-31 2013-10-02 湖南长拓高科冶金有限公司 Reduction roasting system of iron ore
CN103373822B (en) * 2012-04-18 2015-06-24 沈阳鑫博工业技术股份有限公司 Light calcined magnesia powder calcination device
CN103381390B (en) * 2013-07-23 2016-03-02 沈阳鑫博工业技术股份有限公司 One utilizes difficult ore dressing to prepare high-grade magnetite powder complete set of equipments and method
CN103408047B (en) * 2013-07-31 2015-02-25 西安建筑科技大学 Preheating roasting desulfuration and rapid cooling technology for high-sulphur bauxite in suspended state
CN104357651A (en) * 2014-10-31 2015-02-18 成都利君实业股份有限公司 Powder magnetization roasting and cooling system
CN104561522A (en) * 2015-01-05 2015-04-29 西安建筑科技大学 Quick magnetite firing process
CN104561524A (en) * 2015-01-05 2015-04-29 西安建筑科技大学 Device for quickly firing magnetite
CN104677118B (en) * 2015-03-05 2016-08-17 成都利君实业股份有限公司 A kind of suspension cooling system
CN104692435A (en) * 2015-03-31 2015-06-10 沈阳鑫博工业技术股份有限公司 Suspension roasting device and technology for producing multiform aluminum oxide
CN104894366B (en) * 2015-05-13 2017-07-14 中国科学院过程工程研究所 A kind of system and method for low-grade manganese dioxide ore fluidized reduction
CN105132670B (en) * 2015-09-15 2017-03-22 东北大学 Classifying suspension roasting device for complex refractory iron ore
CN106148718A (en) * 2016-08-01 2016-11-23 江苏省冶金设计院有限公司 Process the method and system of red mud
CN106568331B (en) * 2016-10-19 2018-08-21 中冶焦耐(大连)工程技术有限公司 A kind of large size suspension kiln and its production technology
CN106861892A (en) * 2017-03-10 2017-06-20 长沙矿冶研究院有限责任公司 A kind of sorting unit and method for separating containing chromite and ilmenite ore
CN106868292B (en) 2017-03-31 2018-04-06 东北大学 A kind of refractory iron ore multistage suspension magnetizing roast magnetic separation system device and method
CN107385196B (en) * 2017-07-17 2018-10-09 长沙紫宸科技开发有限公司 A kind of method that high ferro waste residue activation separation utilizes
CN107523686B (en) * 2017-07-19 2019-04-23 东北大学 A kind of device and method preparing Iron concentrate for red mud suspension roasting
CN107523685B (en) * 2017-07-19 2019-02-05 东北大学 A kind of suspension roasting utilization system and method containing Ferromanganese Ore
CN107460307B (en) * 2017-07-19 2019-02-05 东北大学 A kind of high-iron bauxite suspension roasting utilization system and method
CN107824318A (en) * 2017-11-15 2018-03-23 中冶北方(大连)工程技术有限公司 A kind of suspending magnetization roasting furnace feed preparation process
CN109943710B (en) * 2019-03-28 2020-07-28 东北大学 Iron ore powder multi-stage suspension state reduction roasting device and method
CN110172595A (en) * 2019-06-24 2019-08-27 东北大学 A kind of device and method that vanadium slag suspended state oxidizing roasting-is acid-leaching vanadium-extracted
CN111663046A (en) * 2020-06-30 2020-09-15 东北大学 System for recovering iron and aluminum by suspending and co-roasting red mud and coal gangue

Also Published As

Publication number Publication date
CN101122442A (en) 2008-02-13

Similar Documents

Publication Publication Date Title
CN101386908B (en) Magnetization roasting technique system for refractory iron ore powder and roasting technology
CN103031431B (en) System for oxidizing roasting-reducing roasting of titaniferous iron concentrate and roasting process
CN103759546B (en) Calcium carbide furnace purification ash back-to-furnace combustion system
CN101538632B (en) Preparation process and device of sponge iron
CN106241826B (en) A kind of fluidizing calcination device and method handling the low aluminium Coaseries kaolin of high-speed rail
CN105039627B (en) A kind of molten point of stove ironmaking technique of fusion and reduction of coal-based direct reduction of external-heat
CN103667571B (en) System and method of fluidized direct reduction of iron ore concentrate powder
CN102372450B (en) Powdered lime calcining technology and system
CN103031433B (en) Fluidized oxidation roasting-fluidized reduction roasting system and roasting process for titaniferous iron concentrate
US10543491B2 (en) Multi-stage suspension magnetizing roasting-magnetic separation system device and method for refractory iron ore
CN102634621A (en) Device and method for treating refractory iron ore
CN101538634A (en) Smelting process and device of pure iron
CN103011090B (en) Method for producing sulfur by using pyrolysis-reducing united technique
CN103949322B (en) A kind of nickel slag grinding system and its production technology
CN104694760B (en) It is a kind of to handle the method and system that red mud reclaims Iron concentrate
CN105316476B (en) It is a kind of to select oxidized iron ore with weak magnetism to be produced into the preparation method of ferromagnetism magnetic iron ore using hardly possible
CN104086107A (en) Method of comprehensively utilizing precipitator ash and slag of calcium carbide furnace
CN106048210B (en) A kind of refractory iron ore mountain flour oxidation-magnetizing roast system and technique
CN103614562A (en) Process method for processing solid waste of steelworks by utilizing smelting furnace
CN202465830U (en) Residual heat reclaiming system for pellets and sintered ores
CN106367600A (en) Method for treating high-zinc iron-containing slime through utilizing rotary kiln
CN102268535B (en) Reduction and magnetic roasting process for low-grade metal minerals in rotary kiln
CN102560089B (en) Magnetic roasting system and process for powder of refractory iron ore
CN103934082A (en) Novel mineral slag grinding system
CN203862359U (en) Novel slag grinding system

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
C41 Transfer of patent application or patent right or utility model
TA01 Transfer of patent application right

Effective date of registration: 20080919

Address of the applicant after: Room 1012, building 55, Miyoshi street, Heping District, Liaoning, Shenyang Province, China: 110003

Applicant after: Shenyang Xinbo Industry Technology Development Co., Ltd.

Address of the applicant before: Zip code 100, East Binhe Road, Shenhe District, Shenyang, Liaoning, China: 110013

Applicant before: Liu Hequn

Co-applicant before: Zip code 25, Ning Ning Road, Dongling District, Shenyang, Liaoning, China: 110025

Applicant before: Zhao Jun

Co-applicant before: 55, South San Hao street, Shenyang, Liaoning, 1012, zip code: 110003

Applicant before: Zou Cheng

Co-applicant before: Liao Mo

Applicant before: Li Yanjun

ASS Succession or assignment of patent right

Owner name: SHENYANG XIN BO INDUSTRIAL TECHNOLOGY DEVELOPMENT

Free format text: FORMER OWNER: LIU HEQUN; APPLICANT

Effective date: 20080919

C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee

Owner name: SHENYANG XINBO INDUSTRIAL TECHNOLOGY CO., LTD.

Free format text: FORMER NAME: SHENYANG XINBO INDUSTRIAL TECHNOLOGY PROGRESSION CO., LTD.

CP03 Change of name, title or address

Address after: 110006 Shenyang, Heping District, Liaoning, South five road 183 a (17 storey writing room 1-9)

Patentee after: Shenyang Xin Bo Industrial Technology Co., Ltd

Address before: 1012 room 110003, building 55, Miyoshi street, Heping District, Liaoning, Shenyang

Patentee before: Shenyang Xinbo Industry Technology Development Co., Ltd.