CN109550588A - A kind of ore-dressing technique improving ore beneficiation grind grading efficiency and sorting index - Google Patents
A kind of ore-dressing technique improving ore beneficiation grind grading efficiency and sorting index Download PDFInfo
- Publication number
- CN109550588A CN109550588A CN201811256500.6A CN201811256500A CN109550588A CN 109550588 A CN109550588 A CN 109550588A CN 201811256500 A CN201811256500 A CN 201811256500A CN 109550588 A CN109550588 A CN 109550588A
- Authority
- CN
- China
- Prior art keywords
- grading
- ore
- sand setting
- sections
- section
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
Landscapes
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Abstract
The present invention proposes a kind of ore-dressing technique for improving ore beneficiation grind grading efficiency and sorting index comprising is classified ore；Underflow sand setting after classification is further classified, and one after sand setting re-grading section sand setting re-grading overflow enters together with the Grading Overflow after classification sorts system, and the sand setting re-grading sand setting after sand setting re-grading then returns to grinding system and carries out closed circuit grinding circulation；Grading Overflow into the system that sorts generates concentrate and tailings or tailings；By to ore classification sand setting re-grading, improve classification efficiency, reduce qualified grain size content in sand setting, not only improve ore dressing treating capacity, and the argillization rate (especially particularly important to the lead zinc-tin antimony ore of easy argillization) of ore can also be reduced, it improves ore and sorts the rate of recovery, to improve dressing plant's economic benefit.
Description
Technical field:
The present invention relates to a kind of raising ore beneficiation grind grading efficiency and the ore-dressing techniques of sorting index, belong to metallurgy and mineral
Field of engineering technology.
Background technique:
Currently, when grinding fineness is -200 mesh 50~70%, being classified matter efficiency in the classification of ore beneficiation grinding grading technique
Generally 50~60%；When grinding fineness is -200 mesh 90~95%, classification matter efficiency is 40~50%；When grinding fineness be-
When 400 mesh 90~95%, classification matter efficiency is 30~40%.Therefore, when existing ore grinding grading technique process is classified, classification
Matter efficiency is generally lower, and with the increase of grind grading fineness, being classified matter efficiency is gradually successively reduced.It is classified matter efficiency not
There are part qualified grain sizes to recycle in grind grading circuit for higher position, and circulating load increases, and causes ore grinding treating capacity relative reduction
The shortcomings that.Meanwhile when the grade of qualification is again by ore grinding, regrinds qualified grain size and argillization, influence sorting index, so that
Metal loss is caused, metal recovery rate is caused to be lower.
Summary of the invention:
One kind is provided and avoids qualified grain size overground it is an object of the invention to overcome the shortcomings of above-mentioned prior art, improves classification
Efficiency reduces circulating load, improves ore grinding treating capacity；Reduce raising ore beneficiation ore grinding point that is overground and reducing argillization phenomenon
The ore-dressing technique of stage efficiency and sorting index.
The purpose of the present invention can be reached by following measure: a kind of raising ore beneficiation grind grading efficiency and be sorted
The ore-dressing technique of index, it is characterised in that itself the following steps are included:
(1) ore is classified；
(2) the underflow sand setting after being classified further is classified, after one after sand setting re-grading section sand setting re-grading overflow and classification
Grading Overflow enters together sorts system, and the sand setting re-grading sand setting after sand setting re-grading then returns to grinding system and carries out closed circuit mill
Mine circulation；
(3) Grading Overflow for entering the system that sorts generates concentrate and tailings or tailings.
In order to further realize the purpose of the present invention, described is classified as two sections of classifications comprising following steps:
(1) ore is subjected to one section of classification；
One section of underflow sand setting after (2) one sections of classifications is further classified, that is, enters one section of sand setting re-grading, and one section of sand setting divides again
One section of sand setting re-grading overflow after grade is classified for two sections together with one section of Grading Overflow after one section of classification, one section of sand setting re-grading
One section of sand setting re-grading sand setting afterwards then returns to primary grinding system and carries out closed circuit grinding circulation；
Two sections of underflow sand settings after (3) two sections of classifications are further classified, that is, enter two sections of sand setting re-gradings, two sections of sand setting re-gradings
Two sections of sand setting re-grading overflows afterwards enter together with two sections of Grading Overflows after two sections of classifications sorts system, and two sections of sand settings divide again
Two sections of sand setting re-grading sand settings after grade, which enter secondary grinding and return to two sections of classifications, carries out closed circuit grinding circulation；
(4) two sections of Grading Overflows for entering the system that sorts generate concentrate and tailings or tailings.
In order to further realize the purpose of the present invention, the ore in the step (1) is tcrude ore, and tcrude ore carries out one
Section classification advances into pulverizing-screening system, enters primary grinding system afterwards after crushing and screening, and the product after primary grinding carries out again
One section of classification.
In order to further realize the purpose of the present invention, the ore in the step (1) is Gold Concentrate under Normal Pressure.
In order to further realize the purpose of the present invention, the system that sorts is cyanidation system, into point of cyanidation system
Grade overflow generates your liquid and cyanogen slag after cyaniding, your liquid output gold after replacing, lean solution returns to cyanidation system.
In order to further realize the purpose of the present invention, the system that sorts is floatation system and gravity treatment system, and classification is overflow
Stream is introduced into floatation system, generates flotation concentrate and flotation tailing after flotation or tailings, flotation tailing or tailings enter gravity treatment
System generates gravity concentrate and gravity tailings or tailings after gravity treatment.
In order to further realize the purpose of the present invention, the system that sorts is gravity treatment system, into point of gravity treatment system
Grade overflow after gravity treatment through generating gravity concentrate and gravity tailings or tailings.
In order to further realize the purpose of the present invention, the system that sorts is floatation system, into point of floatation system
Grade overflow generates concentrate and tailings or tailings.
The present invention can produce following good effect compared with the prior art:
1, sand setting re-grading is classified to ore grinding classification system, qualified grain size in sand setting is further separated, improve classification effect
Rate reduces qualified grain size content in sand setting；
2, ore grinding treating capacity is improved；
3, the amount that qualified grain size has entered ore grinding reduces, to reduce overground and reduce argillization phenomenon, reduces the argillization rate of ore,
It is even more important especially for the ore of easy argillization；
4, the ore beneficiation rate of recovery is improved；
5, dressing plant's energy consumption is reduced.
6, up-front investment needed for reaching same effect compared to traditional handicraft scheme is few.
Detailed description of the invention:
Fig. 1 is the process flow chart of the first embodiment of the invention；
Fig. 2 is the process flow chart of second of embodiment of the invention；
Fig. 3 is the process flow chart of the third embodiment of the invention；
Fig. 4 is the process flow chart of the 4th kind of embodiment of the invention；
Fig. 5 is the process flow chart of the 5th kind of embodiment of the invention；
Fig. 6 is the process flow chart of the 6th kind of embodiment of the invention.
Specific embodiment: specific embodiments of the present invention will be described in detail with reference to the accompanying drawing:
A kind of embodiment 1: ore-dressing technique improving ore beneficiation grind grading efficiency and sorting index (referring to Fig. 1) comprising
Following steps:
(1) tcrude ore enters traditional pulverizing-screening system, enters primary grinding system, the production after primary grinding afterwards after crushing and screening
Product carry out one section of classification；
One section of underflow sand setting after (2) one sections of classifications is further classified, that is, enters one section of sand setting re-grading, one section of sand setting re-grading
One section of sand setting re-grading overflow afterwards is classified for two sections together with one section of Grading Overflow after one section of classification, after one section of sand setting re-grading
One section of sand setting re-grading sand setting then return primary grinding system carry out closed circuit grinding circulation；
Two sections of underflow sand settings after (3) two sections of classifications are further classified, that is, enter two sections of sand setting re-gradings, two sections of sand setting re-gradings
Two sections of sand setting re-grading overflows afterwards enter together with two sections of Grading Overflows after two sections of classifications sorts system, and two sections of sand settings divide again
Two sections of sand setting re-grading sand settings after grade, which enter secondary grinding and return to two sections of classifications, carries out closed circuit grinding circulation；
(4) two sections of Grading Overflows for entering the system that sorts generate flotation or gravity concentrate and tailing or tail through traditional sorting process
Slag.
Embodiment 2: a kind of ore-dressing technique (referring to fig. 2) improving ore beneficiation grind grading efficiency and sorting index,
The following steps are included:
(1) tcrude ore enters traditional pulverizing-screening system, enters primary grinding system, the production after primary grinding afterwards after crushing and screening
Product carry out one section of classification；
One section of underflow sand setting after (2) one sections of classifications is further classified, that is, enters one section of sand setting re-grading, one section of sand setting re-grading
One section of sand setting re-grading overflow afterwards enters together with one section of Grading Overflow after one section of classification sorts system, and one section of sand setting divides again
One section of sand setting re-grading sand setting after grade then returns to primary grinding system and carries out closed circuit grinding circulation；
(3) one section of Grading Overflow for entering the system that sorts generates flotation or gravity concentrate and tailings through traditional sorting process.
Embodiment 3: a kind of ore-dressing technique (referring to Fig. 3) improving ore beneficiation grind grading efficiency and sorting index,
Body the following steps are included:
(1) Gold Concentrate under Normal Pressure carries out one section of classification；
One section of underflow sand setting after (2) one sections of classifications is further classified, that is, enters one section of sand setting re-grading, one section of sand setting re-grading
One section of sand setting re-grading overflow afterwards is classified for two sections together with one section of Grading Overflow after one section of classification, after one section of sand setting re-grading
One section of sand setting re-grading sand setting enter primary grinding and return to one section of classification progress closed circuit grinding circulation；
Two sections of underflow sand settings after (3) two sections of classifications are further classified, that is, enter two sections of sand setting re-gradings, two sections of sand setting re-gradings
Two sections of sand setting re-grading overflows afterwards enter cyanidation system together with two sections of Grading Overflows after two sections of classifications, and two sections of sand settings divide again
Two sections of sand setting re-grading sand settings after grade, which enter secondary grinding and return to two sections of classifications, carries out closed circuit grinding circulation；
(4) your liquid and cyanogen slag are generated after cyaniding into two sections of Grading Overflows of cyanidation system, your liquid output gold after replacing is poor
Liquid returns to cyanidation system.
Through High efficient Revamp, in the case where not increasing ore grinding burden, cyanide plant integrated treatment amount improves 30%.
Embodiment 4: a kind of ore-dressing technique (referring to fig. 4) improving ore beneficiation grind grading efficiency and sorting index,
The following steps are included:
(1) tcrude ore enters traditional pulverizing-screening system, enters primary grinding system, the production after primary grinding afterwards after crushing and screening
Product carry out one section of classification；
One section of underflow sand setting after (2) one sections of classifications is further classified, that is, enters one section of sand setting re-grading, one section of sand setting re-grading
One section of sand setting re-grading overflow afterwards is classified for two sections together with one section of Grading Overflow after one section of classification, after one section of sand setting re-grading
One section of sand setting re-grading sand setting then return primary grinding system carry out closed circuit grinding circulation；
Two sections of underflow sand settings after (3) two sections of classifications are further classified, that is, enter two sections of sand setting re-gradings, two sections of sand setting re-gradings
Two sections of sand setting re-grading overflows afterwards enter floatation system together with two sections of Grading Overflows after two sections of classifications, and two sections of sand settings divide again
Two sections of sand setting re-grading sand settings after grade, which enter secondary grinding and return to two sections of classifications, carries out closed circuit grinding circulation；
(4) flotation concentrate and flotation tailing or tailings, flotation tail are generated after flotation into two sections of Grading Overflows of floatation system
Mine or tailings enter gravity treatment system and generate gravity concentrate and gravity tailings or tailings after gravity treatment.
Embodiment 5: a kind of ore-dressing technique (referring to Fig. 5) improving ore beneficiation grind grading efficiency and sorting index,
The following steps are included:
(1) tcrude ore enters traditional pulverizing-screening system, enters primary grinding system, the production after primary grinding afterwards after crushing and screening
Product carry out one section of classification；
One section of underflow sand setting after (2) one sections of classifications is further classified, that is, enters one section of sand setting re-grading, one section of sand setting re-grading
One section of sand setting re-grading overflow afterwards is classified for two sections together with one section of Grading Overflow after one section of classification, after one section of sand setting re-grading
One section of sand setting re-grading sand setting then return primary grinding system carry out closed circuit grinding circulation；
Two sections of underflow sand settings after (3) two sections of classifications are further classified, that is, enter two sections of sand setting re-gradings, two sections of sand setting re-gradings
Two sections of sand setting re-grading overflows afterwards enter gravity treatment system together with two sections of Grading Overflows after two sections of classifications, and two sections of sand settings divide again
Two sections of sand setting re-grading sand settings after grade, which enter secondary grinding and return to two sections of classifications, carries out closed circuit grinding circulation；
(4) into two sections of Grading Overflows of gravity treatment system through generating gravity concentrate and gravity tailings or tailings after gravity treatment.
Embodiment 6: a kind of ore-dressing technique (referring to Fig. 6) improving ore beneficiation grind grading efficiency and sorting index,
The following steps are included:
(1) tcrude ore enters traditional pulverizing-screening system, enters primary grinding system, the production after primary grinding afterwards after crushing and screening
Product carry out one section of classification；
One section of underflow sand setting after (2) one sections of classifications is further classified, that is, enters one section of sand setting re-grading, one section of sand setting re-grading
One section of sand setting re-grading overflow afterwards is classified for two sections together with one section of Grading Overflow after one section of classification, after one section of sand setting re-grading
One section of sand setting re-grading sand setting then return primary grinding system carry out closed circuit grinding circulation；
Two sections of underflow sand settings after (3) two sections of classifications are further classified, that is, enter two sections of sand setting re-gradings, two sections of sand setting re-gradings
Two sections of sand setting re-grading overflows afterwards enter floatation system together with two sections of Grading Overflows after two sections of classifications, and two sections of sand settings divide again
Two sections of sand setting re-grading sand settings after grade, which enter secondary grinding and return to two sections of classifications, carries out closed circuit grinding circulation；
(4) flotation concentrate and flotation tailing or tailings are generated after flotation into two sections of Grading Overflows of floatation system.
It should be understood that the part that this specification does not elaborate belongs to the prior art.Above embodiment is only
It is that preferred embodiments of the present invention will be described, is not intended to limit the scope of the present invention, is set not departing from the present invention
Under the premise of meter spirit, the various changes and improvements that this field ordinary engineering and technical personnel makes technical solution of the present invention,
It should fall within the scope of protection determined by the claims of the present invention.
Claims (8)
1. a kind of ore-dressing technique for improving ore beneficiation grind grading efficiency and sorting index, it is characterised in that it includes following step
It is rapid:
(1) ore is classified；
(2) the underflow sand setting after being classified further is classified, after one after sand setting re-grading section sand setting re-grading overflow and classification
Grading Overflow enters together sorts system, and the sand setting re-grading sand setting after sand setting re-grading then returns to grinding system and carries out closed circuit mill
Mine circulation；
(3) Grading Overflow for entering the system that sorts generates concentrate and tailings or tailings.
2. a kind of ore-dressing technique for improving ore beneficiation grind grading efficiency and sorting index according to claim 1,
Two sections of classifications are classified as described in being characterized in that comprising following steps:
(1) ore is subjected to one section of classification；
One section of underflow sand setting after (2) one sections of classifications is further classified, that is, enters one section of sand setting re-grading, and one section of sand setting divides again
One section of sand setting re-grading overflow after grade is classified for two sections together with one section of Grading Overflow after one section of classification, one section of sand setting re-grading
One section of sand setting re-grading sand setting afterwards then returns to primary grinding system and carries out closed circuit grinding circulation；
Two sections of underflow sand settings after (3) two sections of classifications are further classified, that is, enter two sections of sand setting re-gradings, two sections of sand setting re-gradings
Two sections of sand setting re-grading overflows afterwards enter together with two sections of Grading Overflows after two sections of classifications sorts system, and two sections of sand settings divide again
Two sections of sand setting re-grading sand settings after grade, which enter secondary grinding and return to two sections of classifications, carries out closed circuit grinding circulation；
(4) two sections of Grading Overflows for entering the system that sorts generate concentrate and tailings or tailings.
3. a kind of ore-dressing technique for improving ore beneficiation grind grading efficiency and sorting index according to claim 1 or 2,
It is characterized in that the ore in the step (1) is tcrude ore, tcrude ore carries out one section of classification and advances into pulverizing-screening system,
Enter primary grinding system afterwards after crushing and screening, the product after primary grinding carries out one section of classification again.
4. a kind of ore-dressing technique for improving ore beneficiation grind grading efficiency and sorting index according to claim 1 or 2,
It is characterized in that the ore in the step (1) is Gold Concentrate under Normal Pressure.
5. a kind of ore-dressing technique for improving ore beneficiation grind grading efficiency and sorting index according to claim 1 or 2,
It is characterized in that the system that sorts is cyanidation system, the Grading Overflow into cyanidation system generates your liquid and cyanogen after cyaniding
Slag, your liquid output gold after replacing, lean solution return to cyanidation system.
6. a kind of ore-dressing technique for improving ore beneficiation grind grading efficiency and sorting index according to claim 1 or 2,
It is characterized in that the system that sorts is that floatation system and gravity treatment system, Grading Overflow are introduced into floatation system, after flotation
Generate flotation concentrate and flotation tailing or tailings, flotation tailing or tailings enter gravity treatment system is generated after gravity treatment gravity concentrate with
Gravity tailings or tailings.
7. a kind of ore-dressing technique for improving ore beneficiation grind grading efficiency and sorting index according to claim 1 or 2,
It is characterized in that the system that sorts is gravity treatment system, the Grading Overflow into gravity treatment system is smart through generating gravity treatment after gravity treatment
Mine and gravity tailings or tailings.
8. a kind of ore-dressing technique for improving ore beneficiation grind grading efficiency and sorting index according to claim 1 or 2,
It is characterized in that the system that sorts is floatation system, the Grading Overflow into floatation system generates concentrate and tailings or tail
Slag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811256500.6A CN109550588B (en) | 2018-10-26 | 2018-10-26 | Mineral processing technology for improving mineral processing, grinding and grading efficiency and grading index of ore |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811256500.6A CN109550588B (en) | 2018-10-26 | 2018-10-26 | Mineral processing technology for improving mineral processing, grinding and grading efficiency and grading index of ore |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109550588A true CN109550588A (en) | 2019-04-02 |
| CN109550588B CN109550588B (en) | 2020-10-23 |
Family
ID=65865308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811256500.6A Active CN109550588B (en) | 2018-10-26 | 2018-10-26 | Mineral processing technology for improving mineral processing, grinding and grading efficiency and grading index of ore |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109550588B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4584096A (en) * | 1982-02-11 | 1986-04-22 | J. Warren Allen | Process to beneficiate phosphate and sand products from debris and phosphate tailing ores |
| CN101708482A (en) * | 2008-12-03 | 2010-05-19 | 鞍钢集团矿业公司 | New technology for processing iron tailings |
| CN103182344A (en) * | 2011-12-30 | 2013-07-03 | 北京有色金属研究总院 | Ore dressing combination process for processing high-slime lead-zinc oxide and sulfide mixed ore |
| CN103433122A (en) * | 2013-09-12 | 2013-12-11 | 广西华锡集团股份有限公司车河选矿厂 | Quality-separating, grading and sorting process for tin middlings |
-
2018
- 2018-10-26 CN CN201811256500.6A patent/CN109550588B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4584096A (en) * | 1982-02-11 | 1986-04-22 | J. Warren Allen | Process to beneficiate phosphate and sand products from debris and phosphate tailing ores |
| CN101708482A (en) * | 2008-12-03 | 2010-05-19 | 鞍钢集团矿业公司 | New technology for processing iron tailings |
| CN103182344A (en) * | 2011-12-30 | 2013-07-03 | 北京有色金属研究总院 | Ore dressing combination process for processing high-slime lead-zinc oxide and sulfide mixed ore |
| CN103433122A (en) * | 2013-09-12 | 2013-12-11 | 广西华锡集团股份有限公司车河选矿厂 | Quality-separating, grading and sorting process for tin middlings |
Non-Patent Citations (1)
| Title |
|---|
| 张宏福: "磨矿回路中两次分级新工艺——提高分级效率的有效途径（摘要）", 《国外金属矿选矿》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109550588B (en) | 2020-10-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106984425B (en) | A kind of sub-prime classification diversion processing method of Lower Grade Micro-fine Grain tin ore | |
| CN101733190B (en) | Benefication method for sulphur-containing composite iron tailing | |
| CN105797841B (en) | A kind of ore-dressing technique for the rate of recovery for improving difficult-treating gold mine gold | |
| CN104888947B (en) | The magnetic separation of fine grain teeth cloth magnetic-red composite ore-centrifuge sorting process | |
| CN107398344B (en) | Mineral processing technology for improving quality and reducing impurities of high-sulfur composite iron ore | |
| CN111495788B (en) | Method for intelligently and preferentially selecting copper-blue-containing copper sulfide ore by X-ray | |
| CN107199120A (en) | A kind of beneficiation method containing magnetic iron ore, the high-sulfur magnetic iron ore of pyrite | |
| CN102228863B (en) | Novel separation process of multi-metal lean hematite | |
| CN106824512B (en) | A kind of beneficiation method improving high-carbon hydrochlorate compound iron ore iron ore concentrate alkali ratio | |
| CN107243409A (en) | A kind of high-sulfur magnetic iron ore puies forward the beneficiation method of iron sulfur reduction | |
| CN102824956B (en) | Poor hematite grading level and narrow level sorting process | |
| CN106492977A (en) | The strong magnetic reverse floatation process of lean hematite high pressure roller mill, weak magnetic | |
| CN109954577B (en) | Beneficiation process for ilmenite of titanomagnetite | |
| CN105233977A (en) | Tailing recovery process adopting magnetic separation-circulating roasting-regrinding and magnetic separation method | |
| CN103433122B (en) | A kind of medium tin ore sub-prime classification and sorting technique | |
| CN107252730A (en) | A kind of composite ore high pressure roller mill wind is classified again, tower mill, magnetic weight sorting process | |
| CN109107755A (en) | A kind of dew adopts ferrotianium sand iron ore desliming process | |
| CN104148175B (en) | Mineral processing technology for processing mixed diamond and magnetic ore | |
| CN105233949B (en) | A kind of beneficiation method of sulfur-containing magnetite | |
| CN109550588A (en) | A kind of ore-dressing technique improving ore beneficiation grind grading efficiency and sorting index | |
| RU2457035C1 (en) | Method of dressing iron-bearing ores | |
| CN101966486B (en) | Magnetic separation process of fine lean hematite | |
| CN105689108B (en) | Comprehensive recovery method of lead in cyaniding leaching process of flotation gold concentrate | |
| CN110102402B (en) | Pre-enrichment method for gold in low-grade gold-containing iron concentrate by table concentrator gravity separation | |
| CN102327801B (en) | Selective milling method for low-grade lead zinc ores |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 118, Taishan Road, Yantai Development Zone, Shandong Province Patentee after: Shanjin Design Consulting Co.,Ltd. Address before: No. 118, Taishan Road, Yantai Development Zone, Shandong Province Patentee before: SHANDONG GOLD GROUP YANTAI DESIGN & RESEARCH ENGINEERING Co.,Ltd. |