CN104989449A - Filling mining pipeline erecting and filling method - Google Patents
Filling mining pipeline erecting and filling method Download PDFInfo
- Publication number
- CN104989449A CN104989449A CN201510339502.1A CN201510339502A CN104989449A CN 104989449 A CN104989449 A CN 104989449A CN 201510339502 A CN201510339502 A CN 201510339502A CN 104989449 A CN104989449 A CN 104989449A
- Authority
- CN
- China
- Prior art keywords
- filling
- flexible pipe
- anchor pole
- rope
- hook
- 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
Abstract
The invention relates to a filling mining pipeline erecting and filling method. n discharging points are arranged in advance, two anchor rods are arranged on a roadway top plate at each corresponding position, the exposed ends of the anchor rods are welded with hooks and circular rings respectively, and meanwhile a rope tying anchor rod is arranged in a filling linking way. During stope filling, a filling soft pipe is hung at a position near the roadway top plate through the hooks, fixing, locating and discharging point switching are achieved through a fixing rope, and the fixing rope achieves reversing and track constraining through the circular rings. According to the method, discharging of a single pipeline at a plurality of discharging points can be achieved, filling top connecting quality can be obviously improved, after stope filling, the filling soft pipe can be recovered effectively, soft pipe consumption is lowered, and filling cost is lowered.
Description
Technical field
The invention belongs to underground mine stope filling technical field, particularly a kind of pipeline construction and placement method during admission passage filling exploitation.
Background technology
The route type method of mining by the way of filling because its stope exposure area is little, the exploitation of advantage the is widely used in ore body of ore-rock stability difference such as stoping operation safety, resource recovery be high.When choosing filling slurry conveyance conduit, for improving Cemented filling safety and pipeline antiwear property, the filling pipeline in earth's surface, filling borehole, courtyard and filling connecting taxiway adopts the steel pipe of manganese steel pipe or other materials usually; And for the ease of Pipe installing erection, reducing labor strength and piping cost, the filling pipeline in route adopts the filling flexible pipe of plastic pipe or other materials usually.
In current route, filling flexible pipe mainly sets up in the following way: several anchor pole of constructing on back, then filling flexible pipe steel wire (iron wire) is banded in anchor pole exposure end, thus filling flexible pipe is fixed on precalculated position.Above-mentioned erection mode is adopted to there is following drawback: 1. filling flexible pipe is tied dead on anchor pole, after admission passage filling, flexible pipe cannot be extracted and reclaim, can only cut off outside filling counterfort, the filling flexible pipe reaching tens of meters has to abandoned in route because reclaiming.Particularly the mining of route method need carry out filling frequently, and cut off the filling flexible pipe considerable amount of abandonment, hose material consumption is huge.2. because filling flexible pipe is tied dead on anchor pole, filling flexible pipe slip discharging opening cannot move, and a filling flexible pipe cannot realize multiple spot blanking, and Tight filling quality cannot be fully guaranteed; Also can arrange for realizing multiple spot blanking the filling flexible pipe that several length does not wait in same route, but in itself and connecting taxiway, filling needs to install pipeline change-over valve between be responsible for, filling process becomes complicated, while filling flexible pipe larger due to cannot consumption be reclaimed.
Summary of the invention
For the problems referred to above of prior art, the invention provides and a kind ofly realize single filling flexible pipe multiple spot blanking filling and effectively can reclaim pipeline construction and the placement method of filling flexible pipe.
The pipeline construction of single tube multiple spot of the present invention blanking, recyclable filling flexible pipe and placement method, preset several blanking point and install two anchor poles on each position back of correspondence, anchor pole exposure end portion is welded with hook and annulus respectively, installs a rope anchor pole in filling connecting taxiway simultaneously.During stope filling, filling flexible pipe is hung over by hook and closes on back position and realize fixing, locating and blanking point switching by stationary rope, and stationary rope realizes commutation and profile constraints through annulus.
The anchor pole of described welding hook, annulus is installed on default feed opening place back in pairs, and the position of presetting feed opening is determined according to the flow behaviors such as slip slump, workability and stope actual conditions.Rock-bolt length 1000 ~ 1200mm, exposure length 40 ~ 50mm, wherein, the anchor pole of welding hook is positioned at back center, the anchor pole of welding annulus is all positioned at center line in roadway the same side, and the two all around is at a distance of 100 ~ 200mm, and the anchor pole of welding hook is relatively near filling connecting taxiway.Described rope anchor pole is installed on filling connecting taxiway top board, apart from filling counterfort 500 ~ 800mm.
Described hook is formed by the steel bar meter of diameter 8 ~ 10mm.The hose diameter that hook size adopts according to stope filling is determined, requires that flexible pipe can be filled in hook, flexible pipe smoothly and can drag smoothly in hook and link up with more than the center line level of eave tile level height at flexible pipe.The anchor pole exposure end of welding hook on center line in roadway, links up with eave tile and deviates from the side that another row's anchor pole is housed during welding.Described annulus is formed by the steel bar meter of diameter 8 ~ 10mm, and circle diameter is 1.5 ~ 2 times of pipeline stationary rope, and annulus is welded on the anchor pole end of center line in roadway side.Described pipeline stationary rope is flexible wear waterproof nylon rope, and nylon rope length is 2.2 ~ 2.5 times of filling hose length in route.Nylon rope one end closely ties up to the position apart from discharging opening 100 ~ 150mm on filling flexible pipe, and the other end is through on the rope anchor pole tied up to after all annulus on filling connecting taxiway top board.
Described filling flexible pipe is suspended on hook, and filling hose end exposure hook length is 200 ~ 250mm.Filling flexible pipe has two columnar projections apart from the position of discharging opening 100 ~ 150mm, and columnar projections is along conduit axis direction length 5 ~ 7mm, height of projection 8 ~ 10mm, and the spacing of two projections is 80 ~ 100mm.Be have stationary rope between two columnar projections.
When presetting blanking point or install the anchor pole welding hook, measure the first discharging point, the second discharging point ... n-th discharging point (from inside to outside) distance s between any two
1, s
2..., s
n-1.Before starting first blanking point filling, first the tensioning of filling flexible pipe stationary rope also fastened on the rope anchor pole on filling connecting taxiway top board, after this system boot carries out filling; When being switched to second blanking point, untie by outside for filling flexible pipe drawing after filling flexible pipe stationary rope, control stationary rope and be stretched and enter the length in tunnel, its length equals the distance s between first, second blanking point
1filling flexible pipe to stretch out in process and must to ensure on stationary rope with a constant load to ensure that filling flexible pipe discharging opening slowly can be transferred to second blanking point reposefully simultaneously, then by again fastening after stationary rope tensioning on rope anchor pole, the filling of the second blanking point is now carried out.When being switched to the 3rd blanking point, untie by outside for filling flexible pipe drawing after filling flexible pipe stationary rope, control stationary rope and be stretched and enter the length in tunnel, its length equals the distance s between second, third blanking point
2.Must ensure while filling flexible pipe stretches out process stationary rope is unlikely to come off to ensure filling flexible pipe discharging opening slowly can be transferred to the 3rd blanking point reposefully with a constant load, then will again fasten after stationary rope tensioning on rope anchor pole, now carry out the filling of the 3rd blanking point.Circulation like this is until last blanking point filling is complete.Finally, untie filling flexible pipe stationary rope, filling flexible pipe is all drawn in filling connecting taxiway, now continue drawing filling flexible pipe stationary rope until rope also pulls out completely.Now, the complete filling of whole stope is complete, and filling flexible pipe also achieves whole recovery.
The present invention has the following advantages compared with existing filling pipeline erection method: can realize single pipe in multiple blanking point blanking, can significantly improve Tight filling quality; Can effectively reclaim filling flexible pipe after stope filling, reduce flexible pipe consumption, reduce filling cost.
Accompanying drawing explanation
Fig. 1 is three-dimensional structure diagram of the present invention.
Fig. 2 is forward sight structure chart of the present invention.
Fig. 3 is left TV structure figure of the present invention.
In figure: 1-anchor pole; 2-filling flexible pipe; 3-links up with; 4-stationary rope; 5-stope to be filled; 6-annulus; 7-filling connecting taxiway; 8-rope anchor pole.
Detailed description of the invention
With reference to figure 1 ~ 3, in concrete enforcement, pipeline construction and the placement method of single tube multiple spot of the present invention blanking, recyclable filling flexible pipe comprise the following steps:
The first blanking point, the second blanking point is determined from inside to outside respectively according to the flow behaviors such as filling slurry slump, workability and filling stope actual conditions ... n-th blanking point, measures the first discharging point, the second discharging point ... n-th discharging point (from inside to outside) distance s between any two
1, s
2..., s
n-1.Then in the corresponding back position of each blanking point, two anchor poles are installed respectively, rock-bolt length 1000 ~ 1200mm, exposure length 40 ~ 50mm, wherein an anchor pole is positioned at back center, another root is positioned at center line in roadway side, and the two all around is at a distance of 100 ~ 200mm.Then respectively hook and annulus are welded on anchor pole exposure end, wherein the anchor pole of welding hook on center line in roadway and hook eave tile deviates from the side that anchor pole is housed, and annulus is welded on the anchor pole of center line in roadway side.Described hook is formed by the steel bar meter of diameter 8 ~ 10mm.The hose diameter that hook size adopts according to stope filling is determined, requires that flexible pipe can be filled in hook, flexible pipe smoothly and can drag smoothly in hook and link up with more than the center line level of eave tile level height at flexible pipe.Described annulus is formed by the steel bar meter of diameter 8 ~ 10mm, and circle diameter is 1.5 ~ 2 times of pipeline stationary rope, and annulus is welded on the anchor pole end of center line in roadway side.Then at filling connecting taxiway mounting of roof plate rope anchor pole, rope anchor pole is apart from filling counterfort 500 ~ 800mm.Pipeline stationary rope is flexible wear waterproof nylon rope.
Filling flexible pipe has two columnar projections apart from the position of discharging opening 100 ~ 150mm, and columnar projections is along conduit axis direction length 5 ~ 7mm, height of projection 8 ~ 10mm, and the spacing of two projections is 80 ~ 100mm.By filling flexible pipe stationary rope one end tightly be tied between two columnar projections on filling flexible pipe, the other end is through the first blanking point, the second blanking point ... tie up to after the annulus that n-th blanking point back anchor pole welds on the rope anchor pole on filling connecting taxiway top board.Then filling flexible pipe is filled in the first blanking point, the second blanking point ... n-th blanking point is arranged in the hook on back center line, now the tensioning of filling flexible pipe stationary rope is also again fastened on rope anchor pole.
After this system boot carries out filling; When being switched to second blanking point, untie by outside for filling flexible pipe drawing after filling flexible pipe stationary rope, control stationary rope and be stretched and enter the length in tunnel, its length equals the distance s between first, second blanking point
1.Must ensure while filling flexible pipe stretches out process stationary rope is unlikely to come off to ensure filling flexible pipe discharging opening slowly can be transferred to second blanking point reposefully with a constant load, then by again fastening after stationary rope tensioning on rope anchor pole, the filling of the second blanking point is now carried out.When being switched to the 3rd blanking point, untie by outside for filling flexible pipe drawing after filling flexible pipe stationary rope, control stationary rope and be stretched and enter the length in tunnel, its length equals the distance s between second, third blanking point
2.Must ensure while filling flexible pipe stretches out process stationary rope is unlikely to come off to ensure filling flexible pipe discharging opening slowly can be transferred to the 3rd blanking point reposefully with a constant load, then will again fasten after stationary rope tensioning on rope anchor pole, now carry out the filling of the 3rd blanking point.Circulation like this is until last blanking point filling is complete.Finally, untie filling flexible pipe stationary rope, filling flexible pipe is all drawn in filling connecting taxiway, now continue drawing filling flexible pipe stationary rope until rope also pulls out completely.Now, the complete filling of whole stope is complete, and filling flexible pipe also achieves whole recovery.
Claims (10)
1. mining with stowing pipeline construction and a placement method, is characterized in that: preset n blanking point and the back of material point position is in each of the lower installed on an exposure end with the anchor pole linked up with, being arranged in a row; Also be provided with another row's anchor pole in its side, anchor pole exposure end is provided with annulus; In filling connecting taxiway, install a rope anchor pole simultaneously; During stope filling, filling flexible pipe is hung over by described row's hook and closes on back position, and stationary rope is tied in filling flexible pipe discharging opening one end through annulus, its one end, realizes the location of filling flexible pipe, fixing and blanking point switching by stationary rope.
2. mining with stowing pipeline construction according to claim 1 and placement method, is characterized in that: stationary rope is fastened the filling then carrying out a blanking point on rope anchor pole; When switching next blanking point, stationary rope is untied, moving filling flexible pipe, according to the distance controlling stationary rope tensile elongation of adjacent blanking point, realize location and the switching of blanking point.
3. mining with stowing pipeline construction according to claim 2 and placement method, is characterized in that: when presetting blanking point or install the anchor pole welding hook, measure the first discharging point, the second discharging point ... distance s between the adjacent 2 discharging points of n-th discharging point
1, s
2..., s
n-1.
4. the mining with stowing pipeline construction according to Claims 2 or 3 and placement method, it is characterized in that: when next blanking point will be switched to, untie outside for filling flexible pipe drawing after stationary rope, control stationary rope is stretched and enters the length in tunnel, its length equals the distance between two blanking points, circulation like this is until last blanking point filling is complete, untie stationary rope, filling flexible pipe is all drawn in filling connecting taxiway, continues drawing stationary rope until rope also pulls out completely.
5. according to the mining with stowing pipeline construction one of claim 1 ~ 3 Suo Shu and placement method, it is characterized in that: the anchor pole of welding hook, annulus is installed on the corresponding back of each blanking point in pairs, the anchor pole of welding hook is positioned at back center, the anchor pole of welding annulus is all positioned at center line in roadway the same side, and the anchor pole of welding hook is relatively near filling connecting taxiway.
6. according to the mining with stowing pipeline construction one of claim 1 ~ 3 Suo Shu and placement method, it is characterized in that: hook size requirements flexible pipe can be filled in hook, flexible pipe smoothly and can drag smoothly in hook and link up with more than the center line level of eave tile level height at flexible pipe, and hook eave tile deviates from the side that another row's anchor pole is housed.
7. according to the mining with stowing pipeline construction one of claim 1 ~ 3 Suo Shu and placement method, it is characterized in that: circle diameter is 1.5 ~ 2 times of stationary rope.
8. according to the mining with stowing pipeline construction one of claim 1 ~ 3 Suo Shu and placement method, it is characterized in that: filling flexible pipe is suspended on hook, filling hose end exposure hook length is 200 ~ 250mm.
9. according to the mining with stowing pipeline construction one of claim 1 ~ 3 Suo Shu and placement method, it is characterized in that: stationary rope length is 2.2 ~ 2.5 times of filling hose length in route, stationary rope one end closely ties up to the position apart from discharging opening 100 ~ 150mm on filling flexible pipe, and the other end is through all annulus.
10. mining with stowing pipeline construction according to claim 9 and placement method, is characterized in that: filling flexible pipe discharge outlet has two columnar projections, is stationary rope between two columnar projections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510339502.1A CN104989449B (en) | 2015-06-18 | 2015-06-18 | Filling mining pipeline erecting and filling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510339502.1A CN104989449B (en) | 2015-06-18 | 2015-06-18 | Filling mining pipeline erecting and filling method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104989449A true CN104989449A (en) | 2015-10-21 |
| CN104989449B CN104989449B (en) | 2017-01-25 |
Family
ID=54301318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510339502.1A Active CN104989449B (en) | 2015-06-18 | 2015-06-18 | Filling mining pipeline erecting and filling method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104989449B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167018A (en) * | 2017-12-25 | 2018-06-15 | 中南大学 | For the continuous filling piping system and its method for arranging of big ore deposit section stage open stope mining with stowing |
| CN109882237A (en) * | 2019-01-23 | 2019-06-14 | 西安科技大学 | A kind of exploitation of strip filling connects top system |
| CN111255513A (en) * | 2020-03-06 | 2020-06-09 | 安徽马钢罗河矿业有限责任公司 | Method for improving roof-contacting rate of filling of mine room by using roof-picking |
| CN111980704A (en) * | 2020-08-31 | 2020-11-24 | 山东黄金矿业(莱州)有限公司三山岛金矿 | Stope top-contacting filling method suitable for downward high-sublevel filling mining method |
| CN112302719A (en) * | 2020-11-19 | 2021-02-02 | 中冶北方（大连）工程技术有限公司 | Method for erecting underground gallery filling pipeline |
| CN112963618A (en) * | 2021-05-19 | 2021-06-15 | 中煤科工能源科技发展有限公司 | Method and device for long-distance laying and continuous filling of filling pipeline of side coal mining cave |
| CN116498322A (en) * | 2023-06-26 | 2023-07-28 | 长春黄金研究院有限公司 | Filling mining method for improving filling roof-grafting rate of approach mining |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0610589A (en) * | 1992-06-30 | 1994-01-18 | Osaka Gas Co Ltd | Backfilling method of cave-hole |
| CN102889097A (en) * | 2012-09-20 | 2013-01-23 | 河北煤炭科学研究院 | System for feeding coal mine solid filling material |
| CN103061764A (en) * | 2012-12-14 | 2013-04-24 | 北京昊华能源股份有限公司 | Goaf waste rock filling coal mining method of flexible shield support in half-edge coal seam |
| CN103147792A (en) * | 2012-02-22 | 2013-06-12 | 贾巍 | Drift type coal mining filling method |
| CN103244123A (en) * | 2013-05-14 | 2013-08-14 | 贵州晨辉达矿业工程设计有限公司 | High-dipping medium thick ore body mining method |
| CN103388488A (en) * | 2013-08-21 | 2013-11-13 | 大同煤矿集团有限责任公司 | Thin seam gob-side entry retaining filling method |
| CN103397906A (en) * | 2013-08-05 | 2013-11-20 | 北京科技大学 | Grouting type filling retaining wall, construction method of grouting type filling retaining wall and goaf filling system and method |
| CN104564134A (en) * | 2014-12-07 | 2015-04-29 | 金川集团股份有限公司 | Filling method for mine worked-out area |
-
2015
- 2015-06-18 CN CN201510339502.1A patent/CN104989449B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0610589A (en) * | 1992-06-30 | 1994-01-18 | Osaka Gas Co Ltd | Backfilling method of cave-hole |
| CN103147792A (en) * | 2012-02-22 | 2013-06-12 | 贾巍 | Drift type coal mining filling method |
| CN102889097A (en) * | 2012-09-20 | 2013-01-23 | 河北煤炭科学研究院 | System for feeding coal mine solid filling material |
| CN103061764A (en) * | 2012-12-14 | 2013-04-24 | 北京昊华能源股份有限公司 | Goaf waste rock filling coal mining method of flexible shield support in half-edge coal seam |
| CN103244123A (en) * | 2013-05-14 | 2013-08-14 | 贵州晨辉达矿业工程设计有限公司 | High-dipping medium thick ore body mining method |
| CN103397906A (en) * | 2013-08-05 | 2013-11-20 | 北京科技大学 | Grouting type filling retaining wall, construction method of grouting type filling retaining wall and goaf filling system and method |
| CN103388488A (en) * | 2013-08-21 | 2013-11-13 | 大同煤矿集团有限责任公司 | Thin seam gob-side entry retaining filling method |
| CN104564134A (en) * | 2014-12-07 | 2015-04-29 | 金川集团股份有限公司 | Filling method for mine worked-out area |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167018A (en) * | 2017-12-25 | 2018-06-15 | 中南大学 | For the continuous filling piping system and its method for arranging of big ore deposit section stage open stope mining with stowing |
| CN109882237A (en) * | 2019-01-23 | 2019-06-14 | 西安科技大学 | A kind of exploitation of strip filling connects top system |
| CN109882237B (en) * | 2019-01-23 | 2021-07-16 | 西安科技大学 | Strip filling mining roof connecting system |
| CN111255513A (en) * | 2020-03-06 | 2020-06-09 | 安徽马钢罗河矿业有限责任公司 | Method for improving roof-contacting rate of filling of mine room by using roof-picking |
| CN111980704A (en) * | 2020-08-31 | 2020-11-24 | 山东黄金矿业(莱州)有限公司三山岛金矿 | Stope top-contacting filling method suitable for downward high-sublevel filling mining method |
| CN111980704B (en) * | 2020-08-31 | 2022-04-19 | 山东黄金矿业(莱州)有限公司三山岛金矿 | Stope top-contacting filling method suitable for downward high-sublevel filling mining method |
| CN112302719A (en) * | 2020-11-19 | 2021-02-02 | 中冶北方（大连）工程技术有限公司 | Method for erecting underground gallery filling pipeline |
| CN112963618A (en) * | 2021-05-19 | 2021-06-15 | 中煤科工能源科技发展有限公司 | Method and device for long-distance laying and continuous filling of filling pipeline of side coal mining cave |
| CN116498322A (en) * | 2023-06-26 | 2023-07-28 | 长春黄金研究院有限公司 | Filling mining method for improving filling roof-grafting rate of approach mining |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104989449B (en) | 2017-01-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104989449A (en) | Filling mining pipeline erecting and filling method | |
| CN101349159B (en) | Method of single channel railless plastic core-rubber-tire vehicle back withdrawing fully-mechanized mining working face | |
| CN103397906B (en) | Slip casting type filling counterfort, construction process and Filling mine-out area system, placement method | |
| CN109681248B (en) | Advanced support method for grouting anchor cable | |
| CN106593497B (en) | A kind of coal working face crosses crossheading caving place supporting processing method | |
| CN101775991B (en) | Method for significant reduction of bracket support of gob-side roadway of fully-mechanized mining face | |
| CN109026024B (en) | Roadway roof deformation control method under high-level stress action | |
| CN107013229A (en) | Folding telescopic gob side entry retaining roadside packing Flexible formwork assembly and its construction method | |
| CN106223963A (en) | A kind of shield machine air pushing construction method by subsurface excavation method tunnel | |
| CN110454163B (en) | Rapid non-mining withdrawing and coal cleaning process for fully mechanized coal mining face | |
| CN110439008A (en) | A kind of composite reinforcement method suitable for Soft Rock Slope landslide control | |
| CN103899342A (en) | Gob-side entrydriving coal pillar anchor cable through reinforcing method | |
| CN104712360B (en) | A kind of mining height workface face is adjustable to fit falsework and gob-side entry retaining methods more | |
| CN106939791A (en) | One kind can prestress steel structure concrete pipe sheet and its construction method | |
| CN102392667B (en) | Fast installation method of ten-million-ton scale fully mechanized caving face equipment | |
| CN104533483A (en) | Roadway total-space prestress truss, anchor cable and anchor rod coordinated supporting method | |
| CN111456735A (en) | Method for filling false roof without interval column and maintaining stability of downward single access | |
| CN205858371U (en) | A kind of colliery big cross section digging laneway combined support structure | |
| CN103161474B (en) | Construction method of down hole interchange roadway | |
| CN208294532U (en) | A kind of bellows cut-and-cover tunnel supporting construction | |
| CN105937400B (en) | It is a kind of once to tunnel Liu Sheshuan lanes digging operation production line | |
| CN112302719A (en) | Method for erecting underground gallery filling pipeline | |
| CN105937401B (en) | The method for protecting support in Liu Sheshuan lanes is once tunneled in a kind of U-shaped ventilation | |
| CN104500116B (en) | A kind of machine-carried type auxiliary stand lift transport device | |
| CN203740486U (en) | Bridge equipment of slag discharge belt for underground mine transportation |
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 |