CN101125271A - Method for regenerating filtering absorbing material used for water treatment - Google Patents

Method for regenerating filtering absorbing material used for water treatment Download PDF

Info

Publication number
CN101125271A
CN101125271A CNA2006101112599A CN200610111259A CN101125271A CN 101125271 A CN101125271 A CN 101125271A CN A2006101112599 A CNA2006101112599 A CN A2006101112599A CN 200610111259 A CN200610111259 A CN 200610111259A CN 101125271 A CN101125271 A CN 101125271A
Authority
CN
China
Prior art keywords
absorbing material
filtering absorbing
coal
saturated
filtering
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.)
Granted
Application number
CNA2006101112599A
Other languages
Chinese (zh)
Other versions
CN100562352C (en
Inventor
张大伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mississippi international water (China) Co., Ltd.
Original Assignee
张大伟
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 张大伟 filed Critical 张大伟
Priority to CNB2006101112599A priority Critical patent/CN100562352C/en
Priority to PCT/CN2007/002482 priority patent/WO2008022562A1/en
Publication of CN101125271A publication Critical patent/CN101125271A/en
Application granted granted Critical
Publication of CN100562352C publication Critical patent/CN100562352C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30Processes for preparing, regenerating, or reactivating
    • B01J20/34Regenerating or reactivating
    • B01J20/345Regenerating or reactivating using a particular desorbing compound or mixture
    • B01J20/3458Regenerating or reactivating using a particular desorbing compound or mixture in the gas phase
    • B01J20/3466Regenerating or reactivating using a particular desorbing compound or mixture in the gas phase with steam
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30Processes for preparing, regenerating, or reactivating
    • B01J20/34Regenerating or reactivating
    • B01J20/3416Regenerating or reactivating of sorbents or filter aids comprising free carbon, e.g. activated carbon
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30Processes for preparing, regenerating, or reactivating
    • B01J20/34Regenerating or reactivating
    • B01J20/3483Regenerating or reactivating by thermal treatment not covered by groups B01J20/3441 - B01J20/3475, e.g. by heating or cooling
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00Carbon; Compounds thereof
    • C01B32/30Active carbon
    • C01B32/354After-treatment
    • C01B32/36Reactivation or regeneration
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/16Regeneration of sorbents, filters

Abstract

The present invention relates to a regenerating method of filtering absorbing material which is used for water disposing. The method comprises the steps as follows: A) the saturated filtering absorbing material is transported to a dehydrating device for dehydration to make the water ratio of the saturated filtering absorbing material less than 30 percent; B) the saturated filtering absorbing material after being dehydrated is transported to a heating furnace for heating until reaching 120 to 400 DEG C at a speed of 4 DEG C per minute, and the moisture of the filtering absorbing material hole and partial organic with low boiling point volatilize; C) the filtering absorbing material after being dried is also heated until reaching 450 to 650 DEG C at a speed of 6 to 8 DEG C per minute, which makes the filtering absorbing material dry distill and carbonize, the organic with high boiling point of the material decomposes, one part becomes organic with low boiling point which volatilizes later, while the other part is carbonized; D) the filtering absorbing material is continuously heated until reaching 700 DEG C at a speed of 4 to 6 DEG C per minute, and is activated by water vapor and then is activated by flue gas, and the activation time is from 20 minutes to 60 minutes. The mixed gas and the flue gas produced by the rotary heating furnace in the regenerating process of the saturated filtering absorbing material are transported to the hearth of the coal burning furnace for burning.

Description

A kind of renovation process that is used for the filtering absorbing material of water treatment
Technical field
The invention belongs to a kind of material processing method, be specifically related to a kind of renovation process that is used to handle the filtering absorbing material of industrial wastewater, municipal sewage.
Background technology
Present most of municipal sewage and industrial wastewater (the especially big industrial wastewater of discharge capacity) all adopt biochemistry, anaerobism, aerobic, activated sludge, add method such as chemical agent handles, the said method floor space is big, the power consumption height, produce a large amount of mud in the processing procedure, and can't handle high salt, peracid, the high waste water that is difficult to biochemistry of COD content.The solid absorbent that is used for water treatment at present has multiple, as active carbon, charcoal, bentonite, diatomite, calcium carbonate, slag, coke powder, slag etc.Filtering absorbing material is after using after a while, inorganic matter and organic matter in waste water, the sewage have been adsorbed, these pollutants make filtering absorbing material hydrophobic, occupy the movable lattice of filtering absorbing material, organic continuous accumulation progressively reduces the adsorption capacity of filtering absorbing material, has influenced the performance of filtering absorbing material.Method by regeneration can make filtering absorbing material recover adsorption capacity, and can reuse, and has reduced the expense of water treatment.
Summary of the invention
The object of the present invention is to provide a kind of renovation process that is used for the filtering absorbing material of water treatment.
For achieving the above object, renovation process provided by the invention, its step is as follows:
A) saturated filtering absorbing material is transported in the dehydration equipment dewaters, make moisture content<30% of saturated filtering absorbing material;
B) will carry the swinging heating furnace to carry out drying through the saturated filtering absorbing material of processed, heat up, rise to 120-400 ℃ with 4 ℃ of/minute clock rate, in this dry run, moisture in the filtering absorbing material hole and the volatilization of a part of low-boiling-point organic compound;
C) be warming up to 450-650 ℃ through the follow-up continuous speed with 6-8 ℃/minute of super-dry, make filtering absorbing material destructive distillation and charing, contained high boiling point organic compound produces and decomposes in the material, and wherein a part is volatilized after becoming low-boiling point material, another part charing;
When D) continuing to be warming up to 700 ℃ with 4-6 ℃/minute speed again, use earlier steam activation, activate with flue gas then, the time of activation is 20-60 minute.Mass recovery 〉=96%.
E) with in the saturated filtering absorbing material regenerative process, mixed gas that produces in the swinging heating furnace and hot flue gas are transported in the coal-burning boiler burner hearth and burn.
The filtering absorbing material that the present invention regenerates, be meant that adopting anthracite, meager coal, lean coal, coking coal, rich coal, bottle coal, jet coal, brown coal is raw material, also can adopt coal converted products such as coke, basket charcoal, breeze is the filtering absorbing material that feedstock production forms, through pulverizing, screening, place warm 120-150 ℃ of beginning to heat up the raw material of particle diameter<10mm, raw material is carried out drying processing prior to 4 ℃ of/minute clock rate; Continuation is warming up to 510-650 ℃ with 6-8 ℃/minute speed, constant temperature 40-70 minute, makes raw material destructive distillation and charing; Use earlier steam activation when continuing to be warming up to 800 ℃ with 4-6 ℃/minute speed again, activate with flue gas then, the time of activation is 20-60 minute, and activation temperature is 840-950 ℃.
In the process that saturated filter material is regenerated, produce in the swinging heating furnace cylinder and contain the gaseous mixture that one-tenth such as methane, hydrogen, carbon monoxide, carbon dioxide, ethene are grouped into and enter closed chamber, by cyclone separator the flue dust in the gaseous mixture is separated, the flue dust that separates is sent back in the cylinder again; Be transported to settler through the gaseous mixture after the cyclone separator dust removal process, the raw gas after settler is handled is transported to the auxiliary fuel of the boiler room of enterprise as boiler by gas exhaust machine.Be transported to the boiler room of enterprise after the tar slag of being separated by settler is discharged by the equipment of slagging tap, mix afterwards fuel with the boiler oil coal as boiler.
The key data of this filtering absorbing material and parameter:
Serge blue: 30~85mg/g
Ash content: 8~15%
Packing density: 200~550g/l
Iodine number: 260~720mg/g
Specific area: 200~490m 2/ g
Priming reaction temperature: 800 ℃~950 ℃
Soak time: 20min~60min
Filtering absorbing material yield: 400kg~600kg/t. coal
COD (COD) adsorbance: 200~3,000mg/g.
The specific embodiment
Saturated filtering absorbing material in the water treatment facilities is dewatered after discharging, make moisture content<30% of saturated filtering absorbing material.To be transported in the heating furnace through the saturated filtering absorbing material of processed, heat up with 4 ℃ of/minute clock rate, rise to 120-400 ℃, saturated filtering absorbing material is carried out drying handle, moisture in the dry run in the filtering absorbing material hole and the volatilization of a part of low-boiling-point organic compound.Saturated filtering absorbing material is warming up to 450-650 ℃ through the follow-up continuous speed with 6-8 ℃/minute of super-dry, make organic matter destructive distillation and charing in the saturated filtering absorbing material, contained high boiling point organic compound produces and decomposes in the material, and wherein a part is volatilized after becoming low-boiling point material, another part charing; When continuing to be warming up to 700 ℃ with 4-6 ℃/minute speed again, use earlier steam activation, activate with flue gas then, the time of activation is 20-60 minute.After regeneration is handled, the mass recovery of filtering absorbing material 〉=96%.
The equipment that the present invention is used to prepare filtering absorbing material can be known equipment, is substantially: dehydration equipment, conveying equipment, steam boiler and the heating furnace that can be warmed to drying, destructive distillation, charing and activation temperature.Dehydration equipment wherein (as centrifugal drier) is to be used for saturated filtering absorbing material is dewatered; Conveying equipment is that the saturated filtering absorbing material that after the reason through dewatering is delivered in the heating furnace; Steam boiler is to be used for producing steam so that the filtering absorbing material through super-dry, destructive distillation, charing is activated; Heating furnace is the common heating device that is used for saturated filtering absorbing material is carried out dry and charing that has the control that heats up.It is " the swinging carbocoal filtering processing unit " that 200410100439.8 (publication number CN1660964) provide that the comparatively ideal equipment that carries out drying, destructive distillation, charing and activation act can adopt application number.When using this unit filtering absorbing material is regenerated, can realize automatic continuous production, thereby enhance productivity.According to the disclosed data of this patent application, the operation principle of the structure of this unit of brief description.Need to prove which kind of equipment the present invention adopts do not have strict qualification, as long as can satisfy dehydration and meet the requirements of dry and dry distillation charring temperature.So only this unit is done a summary here, is to wish to help those skilled in the art further to understand essence technology contents of the present invention, thereby implements.This swinging carbocoal filtering processing machine series cylinder is a double-barrel structure, is made of inner core and urceolus, adopts heat-resisting alloy steel to make, and inner diameter of steel flue is 900-4, and 000mm, urceolus diameter are 1,500-5, and 200mm, the cylinder draw ratio is 12: 1; Be respectively equipped with gear ring, stiffening ring, rolling ring, sliding sealing device at the outside different parts of cylinder; Interlayer between inner core and the urceolus is the combustion gas heating chamber; Inner core is the coal charge cooking camber; Cooking camber is divided into dryer section and retort section; When adopting swinging carbocoal filtering materials processing unit to prepare filtering absorbing material, the unit inner core has increased activation section.The cylinder of unit tilts to place, and is seated on two carrying roller assemblies, is driven by the gear ring on the cylinder by transmission device, and the rotating speed of cylinder changes for per minute 3-5; Temp measuring system is installed on the cylinder, is used to monitor the temperature of each section of cylinder; Urceolus one end and the combustion chamber of cylinder link, and the other end and flue gas collecting chamber link; Inner core one end and the last closed chamber of cylinder link, and the other end and lower seal chamber link; Point of attachment all has sliding sealing device, and sealing device structure is piston ring type, labyrinth type or steam formula; Between fume emission device and the flue gas collecting chamber heat exchanger is installed, is used for reclaiming by the waste heat of combustion gas heating chamber through the flue gas of flue gas collecting chamber discharge.Connect by pipeline between fume emission device, flue gas collecting chamber and the heat exchanger.Last closed chamber is equipped with screw(-type) feeder, sealing adds coal bin, coal store, and cyclone separator, gas cleaning device and coal gas system also are installed; The unit combustion chamber is equipped with igniter, the coal gas ignition that unit adopts gas generator to provide; Firing rate is 4 ℃/min during igniting.The outside of unit is an insulating, and the heat-insulation and heat-preservation material at cylinder position adopts alumina silicate fiber felt, the containment vessel that encased steel plate is made, and common heat-insulation and heat-preservation material is adopted according to surface temperature in other positions.
Adopt in the process that swinging carbocoal filtering materials processing unit regenerates to saturated filter material, produce in the cylinder and contain the gaseous mixture that one-tenth such as methane, hydrogen, carbon monoxide, carbon dioxide, ethene are grouped into and enter closed chamber, by cyclone separator the flue dust in the gaseous mixture is separated, the flue dust that separates is sent back in the cylinder again; Be transported to settler through the gaseous mixture after the cyclone separator dust removal process, the raw gas after settler is handled is transported to the auxiliary fuel of the boiler room of enterprise as boiler by gas exhaust machine.Be transported to the boiler room of enterprise after the tar slag of being separated by settler is discharged by the equipment of slagging tap, mix afterwards fuel with the boiler oil coal as boiler.

Claims (2)

1. renovation process that is used for the filtering absorbing material of water treatment, its step is as follows:
A) saturated filtering absorbing material is transported in the dehydration equipment dewaters, make moisture content<30% of saturated filtering absorbing material;
B) will be transported to the swinging heating furnace through the saturated filtering absorbing material of processed and carry out drying, heat up, rise to 120-400 ℃ with 4 ℃ of/minute clock rate, in this dry run, moisture in the filtering absorbing material hole and the volatilization of a part of low-boiling-point organic compound;
C) be warming up to 450-650 ℃ through the follow-up continuous speed of super-dry with 6-8 ℃/minute, make organic matter destructive distillation and charing in the filtering absorbing material, contained high boiling point organic compound produces and decomposes in the material, and wherein a part is volatilized after becoming low-boiling point material, another part charing;
When D) continuing to be warming up to 700 ℃ with 4-6 ℃/minute speed again, use earlier steam activation, activate with flue gas then, the time of activation is 20-60 minute.
E) with in the saturated filtering absorbing material regenerative process, mixed gas that produces in the swinging heating furnace and hot flue gas are transported in the coal-burning boiler burner hearth and burn.
2. renovation process as claimed in claim 1, wherein saturated filtering absorbing material for adopting anthracite, meager coal, lean coal, coking coal, rich coal, bottle coal, jet coal, brown coal, coke, basket charcoal or/and breeze be that feedstock production forms, be used for the filtering absorbing material after the water treatment.
CNB2006101112599A 2006-08-17 2006-08-17 A kind of renovation process that is used for the filtering absorbing material of water treatment Expired - Fee Related CN100562352C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CNB2006101112599A CN100562352C (en) 2006-08-17 2006-08-17 A kind of renovation process that is used for the filtering absorbing material of water treatment
PCT/CN2007/002482 WO2008022562A1 (en) 2006-08-17 2007-08-17 A regeneration method for filtering and adsorbing material used in water treatment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2006101112599A CN100562352C (en) 2006-08-17 2006-08-17 A kind of renovation process that is used for the filtering absorbing material of water treatment

Publications (2)

Publication Number Publication Date
CN101125271A true CN101125271A (en) 2008-02-20
CN100562352C CN100562352C (en) 2009-11-25

Family

ID=39093455

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB2006101112599A Expired - Fee Related CN100562352C (en) 2006-08-17 2006-08-17 A kind of renovation process that is used for the filtering absorbing material of water treatment

Country Status (2)

Country Link
CN (1) CN100562352C (en)
WO (1) WO2008022562A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103663754A (en) * 2012-09-26 2014-03-26 上海宝钢化工有限公司 Regeneration method of cyclodextrin absorbent for water treatment
CN110745934A (en) * 2019-10-22 2020-02-04 庆泓技术(上海)有限公司 Modified high-activity inorganic fiber composite material and preparation and regeneration method thereof

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CL2013003788A1 (en) 2013-12-30 2014-05-02 Univ Santiago Chile Procedure for the activation and regeneration of a filter material; and filter material obtained.
CN112044396B (en) * 2020-08-25 2023-06-09 煤炭科学技术研究院有限公司 Adsorbent capable of being regenerated in situ and preparation method and application thereof

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4268417A (en) * 1977-09-26 1981-05-19 American Minechem Corporation Method of making activated carbon
JPS6034412B2 (en) * 1979-08-10 1985-08-08 住友重機械工業株式会社 Reactivation method for carbonaceous adsorbent for desulfurization
AU7033681A (en) * 1981-04-10 1982-11-04 Sasaki, Y. Apparatus for regenerating activated carbon
CN85100619B (en) * 1985-04-02 1986-11-26 中国市政工程西北设计院 Forced electric discharge reactivating technique and device for the activated carbon
JPH05154379A (en) * 1991-04-26 1993-06-22 Matsushita Electric Works Ltd Heat regenerating device for active carbon
RU2108968C1 (en) * 1997-03-18 1998-04-20 Олег Гурьевич Алексеев Method of preparing adsorbent
KR100381903B1 (en) * 2000-12-16 2003-05-01 한국염색기술연구소 recycle system of Activated Carbon Fiber cartridge and its method
CN1381305A (en) * 2001-04-16 2002-11-27 谢仁智 Process for regenerating activated carbon
CN1413907A (en) * 2001-10-26 2003-04-30 中国科学院山西煤炭化学研究所 Process for preparing active coke
CN1298624C (en) * 2005-02-28 2007-02-07 昆明理工大学 Method for preparing activated carbon by waste tobacco stalk treated by physical method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103663754A (en) * 2012-09-26 2014-03-26 上海宝钢化工有限公司 Regeneration method of cyclodextrin absorbent for water treatment
CN110745934A (en) * 2019-10-22 2020-02-04 庆泓技术(上海)有限公司 Modified high-activity inorganic fiber composite material and preparation and regeneration method thereof

Also Published As

Publication number Publication date
CN100562352C (en) 2009-11-25
WO2008022562A1 (en) 2008-02-28

Similar Documents

Publication Publication Date Title
CN100509143C (en) Method for treating saturated active coke
CN106563428B (en) Solid adsorbent regeneration device and adsorption device using same
CN106622121A (en) Saturated activated carbon regeneration system with low energy consumption and method thereof
EP3012037B1 (en) Production line and method for recycling of charcoal and gas from garbage
US10611657B2 (en) Method and system for preparing fuel gas by utilizing organic waste with high water content
CN110759627A (en) Sludge indirect heat exchange evaporation dehydration coupling pyrolysis carbonization method and system
CN204714525U (en) A kind of continous way wood material carbonization device
CN101125292A (en) Method for preparing filtering absorbing material used for water treatment
CN107601804A (en) A kind of method that self-heating moulding oily sludge pyrolysis prepares adsorbent
CN105668567B (en) A kind of method that gasification of coal coke tar waste slag prepares Magnaglo activated carbon
CN100562352C (en) A kind of renovation process that is used for the filtering absorbing material of water treatment
KR101200478B1 (en) Carbonize apparatus of dried sludge
KR200380974Y1 (en) Energy saving type sludge carbonization equipment using regenerative heat exchanger
KR100803809B1 (en) Manufacturing method and manufacturing device for refuse derived fuel
CN101648771B (en) Sludge drying and carbonizing processing device
CN109294686A (en) The processing method of mud decrement charing recycling
CN107298517A (en) A kind of energy-efficient recycling sludge utilizes technique and system
KR100520347B1 (en) Energy saving type sludge carbonization equipment using regenerative heat exchanger
JPH11199215A (en) Production of activated carbon from refuse-derived fuel
JP2004358371A (en) Processing method and processing system of watery organic waste
KR101227687B1 (en) Carbonized-marerials recycling system of sludge and epr waste
CN114685022A (en) Catalytic thermal cracking gasification method for sludge
CN210481281U (en) Carbonization treatment system for oil-containing sludge
CN210560031U (en) Drying gasification equipment for oil-containing sludge
CN114350387A (en) Method for treating and recycling oily sludge

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
PP01 Preservation of patent right

Effective date of registration: 20101229

Granted publication date: 20091125

PD01 Discharge of preservation of patent

Date of cancellation: 20111229

Granted publication date: 20091125

PP01 Preservation of patent right

Effective date of registration: 20120118

Granted publication date: 20091125

PD01 Discharge of preservation of patent

Date of cancellation: 20120718

Granted publication date: 20091125

PP01 Preservation of patent right

Effective date of registration: 20120802

Granted publication date: 20091125

PD01 Discharge of preservation of patent

Date of cancellation: 20130202

Granted publication date: 20091125

RINS Preservation of patent right or utility model and its discharge
ASS Succession or assignment of patent right

Owner name: MISSISSIPPI INTERNATIONAL WATER (CHINA) CO., LTD.

Free format text: FORMER OWNER: ZHANG DAWEI

Effective date: 20130904

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 110004 SHENYANG, LIAONING PROVINCE TO: 310004 HANGZHOU, ZHEJIANG PROVINCE

TR01 Transfer of patent right

Effective date of registration: 20130904

Address after: 311, room 610, 310004 Xin Dong Road, Xiacheng District, Zhejiang, Hangzhou

Patentee after: Mississippi international water (China) Co., Ltd.

Address before: 110004, Heping District, Heping District, Liaoning, 200, Shenyang embroidery garden 1-6-2-1

Patentee before: Zhang Dawei

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20091125

Termination date: 20160817

CF01 Termination of patent right due to non-payment of annual fee