CN103667555B - A kind of high-temperature steel slag waste heat recovery well formula slag ladle device - Google Patents
A kind of high-temperature steel slag waste heat recovery well formula slag ladle device Download PDFInfo
- Publication number
- CN103667555B CN103667555B CN201310733718.7A CN201310733718A CN103667555B CN 103667555 B CN103667555 B CN 103667555B CN 201310733718 A CN201310733718 A CN 201310733718A CN 103667555 B CN103667555 B CN 103667555B
- Authority
- CN
- China
- Prior art keywords
- slag ladle
- well formula
- formula slag
- plate
- steel
- 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.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Furnace Details (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
A kind of high-temperature steel slag waste heat recovery well formula slag ladle device is provided, comprises interconnective well formula slag ladle, waterworks, vapor discharge channel, steam pressure-reducing bleed valve, counterweight scale, leverage, push rod, valve plate, valve body, exhaust covered conduit, pulp water leakage mechanism, pulp water collecting mechanism, seugh, slag ladle lid, support retaining frame, plate heat exchange unit, steel plate frame, steel pipe framed bent, open arm, tensioning chain, rotating mechanism, Electrohydraulic push rod; Install several equally distributed support retaining frames inside well formula slag ladle wall, the outer side and the well formula slag ladle inwall that support retaining frame link together; Plate heat exchange unit is made up of steel plate frame and steel pipe framed bent, steel pipe framed bent be embedded in steel plate frame in the groove reserved, some pieces of guard plate type heat exchangers are installed at well formula slag ladle wall with supporting inside retaining frame, and with support retaining frame inside link together.Advantage of the present invention is: the features such as efficient, safety, reliable, water saving, zero release.
Description
Technical field:
The invention belongs to blast furnace slag processing technology field, particularly a kind of high-temperature steel slag waste heat recovery well formula slag ladle device.
Background technology:
In the prior art, patent 201010584171.5 provides a kind of steel slag hot disintegrating technique vexed slag backwater UTILIZATION OF VESIDUAL HEAT IN ground method, the method is poured into by high-temperature steel slag in hot vexed pond then to spray water on warm sludge, in water spray process, large water gaging is seeped into bottom by slag blanket gap, enter settling tank Posterior circle by waterways to use, now return water temperature can reach about 80 DEG C, wherein contain a large amount of heat energy, the method utilizes snake pipe and water tank to form heat exchanger, about 80 DEG C hot water of purification are entered snake pipe, carrying out hot friendship by the cold water in snake pipe and water tank makes the water in water tank heat up.For heating and worker's bathing.Patent 201220164740.5 provides a kind of system utilizing steel slag waste heat to generate electricity, and slag heat energy, by producing the steam containing impurity after warm sludge water spray in the vexed slag ladle of thermotropism, is transformed into steam-energy and carries out waste heat recovery by this system.The common trait of above-mentioned recovery method of steel slag residual heat reclaims low-temperature water heating and the wetting vapour of impurity, and then reclaim steel slag waste heat by the form of conversion, the main Problems existing of these techniques is: often, heat energy loss is high for a. energy transformation, and the rate of recovery is low; B. these contain hot water, the steam of impurity, need by modes such as second heat exchange, dedustings, after these being contained the gas sweetening of the hot water of impurity, steam, heat, could use, so occurred that temperature drop is high, efficiency is low, and the problem that facility investment is large.
Summary of the invention:
The object of the invention is the deficiency overcoming the existence of above-mentioned prior art, provide a kind of energy transformation number of times few, heat energy loss is low, and organic efficiency is high; Environmental pollution little, safe and reliable, water-saving high-temperature steel slag waste heat recovery well formula slag ladle device.
The present invention solves the scheme that its technical problem adopts: provide a kind of high-temperature steel slag waste heat recovery well formula slag ladle device, comprise interconnective well formula slag ladle, waterworks, vapor discharge channel, steam pressure-reducing bleed valve, counterweight scale, leverage, push rod, valve plate, valve body, exhaust covered conduit, pulp water leakage mechanism, pulp water collecting mechanism, seugh; It is characterized in that: also comprise slag ladle lid, support retaining frame, plate heat exchange unit, steel plate frame, steel pipe framed bent, open arm, tensioning chain, rotating mechanism, Electrohydraulic push rod; Install several equally distributed support retaining frames inside well formula slag ladle wall, the outer side and the well formula slag ladle inwall that support retaining frame link together; Plate heat exchange unit is made up of steel plate frame and steel pipe framed bent, steel pipe framed bent be embedded in steel plate frame in the groove reserved, some pieces of guard plate type heat exchangers are installed at well formula slag ladle wall with supporting inside retaining frame, and with support retaining frame inside link together; Waterworks is made up of several spray water nozzles, and waterworks is evenly arranged on the well head both sides of well formula slag ladle and the apical position of plate heat exchange unit respectively; Steam pressure-reducing bleed valve is arranged on vapor discharge channel, leverage and valve body link together, counterweight scale is arranged on the right-hand member of leverage, valve plate is arranged on the lower end of valve body, compressed by the push rod of leverage and the lower port of valve body, vapor discharge channel left end is connected with well formula slag ladle, and right-hand member is connected with seugh; Pulp water leakage mechanism is arranged on the bottom of well formula slag ladle, and pulp water collecting mechanism is arranged on below pulp water leakage mechanism, and seugh is arranged on the side of well formula slag ladle; The top board opening arm left end and slag ladle lid links together, unlatching arm right-hand member and rotating mechanism are fixed together, the upper end of tensioning chain is connected with unlatching arm, the lower end of tensioning chain and the top board of slag ladle lid link together, the two ends projecting shaft of rotating mechanism and the expansion link head of Electrohydraulic push rod link together, and Electrohydraulic push rod and ground are fixed together; Be further characterized in that: the tank body of well formula slag ladle is poured into a mould by heat resistance concrete to form; Slag ladle lid is made up of Plate Welding; Supporting retaining frame is be made up of Plate Welding; Well formula slag ladle main part is installed on below ground, and well formula slag ladle mouth is a little more than ground.
The invention has the beneficial effects as follows: use high-temperature steel slag waste heat recovery well formula slag ladle device of the present invention, slag processing rate reaches 100%; Slag temperature extracts waste heat between 1500-300 DEG C, and waste heat recovery rate reaches more than 70%; Less than 600 DEG C vexed slags of water spray, thus ensure the shortcake of slag and being separated of metal, the rate of recovery of steel reaches more than 96%, and the hot water that vexed slag of spraying water institute produces steam containing impurity and 80 DEG C all reclaims not to be arranged outward, avoids environment contaminated.The features such as the present invention has efficiently, safety, reliable, water saving, zero release.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of the embodiment of the present invention;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the B-B sectional view of Fig. 1;
Fig. 4 is the C-C sectional view of Fig. 1;
Fig. 5 is the Q direction view of Fig. 2;
Fig. 6 is the P direction view of Fig. 5.
In accompanying drawing: 1. well formula slag ladle; 2. slag ladle lid; 3. support retaining frame; 4. plate heat exchange unit; 5. steel plate frame; 6. steel pipe framed bent; 7. waterworks; 8. vapor discharge channel 9. steam pressure-reducing bleed valve; 10. counterweight scale; 11. leverages; 12. push rods; 13. valve plates; 14. valve bodies; 15. exhaust covered conduits; 16. pulp water leakage mechanisms; 17. pulp water collecting mechanisms; 18. seughs; 19. open arm; 20. tensioning chains; 21. rotating mechanisms; 22. Electrohydraulic push rods.
Embodiment:
Below in conjunction with accompanying drawing, the embodiment of the present invention is described in further detail: a kind of high-temperature steel slag waste heat recovery well formula slag ladle device as shown in Fig. 1 ~ Fig. 6, comprises interconnective well formula slag ladle 1, waterworks 7, vapor discharge channel 8, steam pressure-reducing bleed valve 9, counterweight scale 10, leverage 11, push rod 12, valve plate 13, valve body 14, exhaust covered conduit 15, pulp water leakage mechanism 16, pulp water collecting mechanism 17, seugh 18; Also comprise slag ladle lid 2, support retaining frame 3, plate heat exchange unit 4, steel plate frame 5, steel pipe framed bent 6, open arm 19, tensioning chain 20, rotating mechanism 21, Electrohydraulic push rod 22; Install several inside well formula slag ladle 1 wall and support retaining frame 3, and be uniformly distributed, the outer side and well formula slag ladle 1 inwall that support retaining frame 3 link together.Plate heat exchange unit 4 is made up of steel plate frame 5 and steel pipe framed bent 6, steel pipe framed bent 6 be embedded in steel plate frame 5 in the groove reserved, some pieces of guard plate type heat exchangers 4 are installed at well formula tank 1 wall with supporting inside retaining frame 3, and with support retaining frame 3 inside link together.Waterworks 7 is made up of several spray water nozzles, and waterworks 7 is evenly arranged on well head both sides and plate heat exchange unit 4 apical position of well formula slag ladle 1 respectively.Steam pressure-reducing bleed valve 9 is arranged on vapor discharge channel 8, leverage 11 and valve body 14 link together, counterweight scale 10 is arranged on the right-hand member of leverage 11, valve plate 13 is arranged on the lower end of valve body 14, compressed by the lower port of push rod 12 valve body 14 of leverage 11, vapor discharge channel 8 left end is connected with well formula slag ladle, and right-hand member is connected with steam discharge covered conduit 15.Pulp water leakage mechanism 16 is arranged on the bottom of well formula slag ladle 1, and pulp water collecting mechanism 17 is arranged on below pulp water leakage mechanism 16, and seugh 18 is arranged on the side of well formula slag ladle 1.The top board opening arm 19 left end and slag ladle lid 2 links together, unlatching arm 19 right-hand member and rotating mechanism 21 are fixed together, the upper end of tensioning chain 20 is opened arm 19 and is connected, the lower end of tensioning chain 20 and the top board of slag ladle lid 2 link together, the two ends projecting shaft of rotating mechanism 21 and the expansion link head of Electrohydraulic push rod 22 link together, and Electrohydraulic push rod 22 and ground are fixed together.The tank body of well formula slag ladle is poured into a mould by heat resistance concrete and is formed.Slag ladle lid is made up of Plate Welding.Support retaining frame to be made up of Plate Welding.Plate heat exchange unit is made up of steel plate frame and steel pipe framed bent, steel pipe framed bent be embedded in steel plate frame in the groove reserved, form the aquaporin at networking in steel pipe framed bent pipe.Waterworks by spraying water nozzle, pipeline, gate valve form.Steam eduction gear is secretly purchased by steam pressure-reducing bleed valve, vapor discharge channel, steam discharge and is formed, and steam reducing valve is made up of counterweight scale, leverage, push rod, valve plate and valve body.The retrieving arrangement of pulp water is made up of pulp water leakage mechanism, pulp water collecting mechanism, seugh.Slag tin-cap opener by opening arm, tensioning chain, rotating mechanism, Electrohydraulic push rod, support form.The main part of well formula slag ladle is installed on below ground, and well formula slag ladle mouth is a little more than ground.
Principle of work of the present invention is: install several inside well formula slag ladle wall and support retaining frame, and be uniformly distributed, the outer side and the well formula slag ladle inwall that support retaining frame link together, the effect supporting retaining frame is because slag temperature is high, after water spray temperature drop, volumetric expansion is large, so play supporting plate type heat exchanger, prevent the effect that plate heat exchange unit is out of shape.Guard plate type heat exchanger forms by some pieces, and with support retaining frame inside link together, form lined steel plate protective layer and heat exchange network at well formula slag ladle wall inside circumference, the effect of this support retaining frame and plate heat exchange unit 1. protects heat resistance concrete, avoids heat waste; 2. the waste heat recovery rate of high-temperature steel slag is extracted; 3. because the heat energy of high-temperature steel slag is taken away by plate heat exchange unit, the heat energy of slag reduces well formula slag ladle wall and the heat waste supporting retaining frame, and intensity improves, extend working life 4. guard plate type heat exchanger be building block assembling, be convenient to maintenance.The waterworks adopted is made up of several spray water nozzles, waterworks is evenly arranged on well head both sides and the plate heat exchange unit apical position of well formula slag ladle respectively, enters waterworks when operating carry out fan-shaped water spray by nozzle to high-temperature steel slag with the water of pressure.The steam eduction gear adopted is made up of some covers, evenly be arranged on upper end in the side of well formula slag ladle wall respectively and be communicated with steam discharge covered conduit, described steam pressure-reducing bleed valve is arranged on steam-pipe, valve plate is by the effect of leverage and counterweight scale and push rod, leaning on gravity and its compression with valve axis vertical surface, guarantee that in well formula slag ladle, vapour pressure is not leaked.After vapor pressure exceeds the scope of regulation, counterweight valve plate backs down by vapour pressure, steam enters covered conduit by valve body, after vapor pressure in well formula slag ladle is lower than the scope of regulation, valve plate leans on the gravity of leverage and counterweight scale, again valve body venting port is tamping, thus guarantee vapor equalization in well formula slag ladle, be conducive to the process of slag shortcakeization, change and the displacement of the height of counterweight scale, a little more than ground horizontal plane, can be estimated at any time in the upper end of counterweight scale.The pulp water adopted reclaims and is made up of pulp water leakage mechanism, pulp water collecting mechanism, seugh, and pulp water leakage mechanism is arranged on the bottom of well formula slag ladle, and pulp water collecting mechanism is arranged on below pulp water leakage mechanism, and seugh is arranged on the side of well formula slag ladle.When spraying pulp water and oozing to well formula slag ladle, more than water can flow in pulp water collecting mechanism from the gap of pulp water leakage mechanism, then by the receiving tank of pulp water collecting mechanism, water is discharged in seugh.The object of pulp water retrieving arrangement guarantees the bottom not water of well formula slag ladle, avoids warm sludge to produce Peril Incident such as water quick-fried grade.The slag tin-cap opener adopted, the top board opening arm left end and slag ladle lid links together, unlatching arm right-hand member and rotating mechanism are fixed together, the upper end of tensioning chain is opened arm and is connected, the lower end of tensioning chain and the top board of slag ladle lid link together, the two ends projecting shaft of rotating mechanism and the expansion link head of Electrohydraulic push rod link together, and Electrohydraulic push rod is fixed together by support and ground.When opening slag ladle lid, Electrohydraulic push rod promotion rotating mechanism turns clockwise, and drive the unlatching arm that is fixed together with it and await orders with opening after slag ladle lid that arm connects together rotates up certain angle, now slag ladle lid is to open, and the effect of tensioning chain is, guarantees the vertical position of slag ladle lid.
Claims (5)
1. a high-temperature steel slag waste heat recovery well formula slag ladle device, comprises interconnective well formula slag ladle (1), waterworks (7), vapor discharge channel (8), steam pressure-reducing bleed valve (9), counterweight scale (10), leverage (11), push rod (12), valve plate (13), valve body (14), exhaust covered conduit (15), pulp water leakage mechanism (16), pulp water collecting mechanism (17), seugh (18); It is characterized in that: also comprise slag ladle lid (2), support retaining frame (3), plate heat exchange unit (4), steel plate frame (5), steel pipe framed bent (6), open arm (19), tensioning chain (20), rotating mechanism (21), Electrohydraulic push rod (22); Install several equally distributed support retaining frames (3) inside well formula slag ladle (1) wall, the outer side and well formula slag ladle (1) inwall that support retaining frame (3) link together; Plate heat exchange unit (4) is made up of steel plate frame (5) and steel pipe framed bent (6), steel pipe framed bent (6) be embedded in steel plate frame (5) in the groove reserved, at well formula slag ladle (1) wall and support retaining frame (3) inner side, some pieces of plate heat exchange units (4) are installed, and link together with support retaining frame (3) inner side; Waterworks (7) is made up of several spray water nozzles, and waterworks (7) is evenly arranged on the well head both sides of well formula slag ladle (1) and the apical position of plate heat exchange unit (4) respectively; Steam pressure-reducing bleed valve (9) is arranged on vapor discharge channel (8), leverage (11) and valve body (14) link together, counterweight scale (10) is arranged on the right-hand member of leverage (11), valve plate (13) is arranged on the lower end of valve body (14), compressed by the push rod (12) of leverage (11) and the lower port of valve body (14), vapor discharge channel (8) left end is connected with well formula slag ladle (1), and right-hand member is connected with seugh (18); Pulp water leakage mechanism (16) is arranged on the bottom of well formula slag ladle (1), pulp water collecting mechanism (17) is arranged on below pulp water leakage mechanism (16), and seugh (18) is arranged on the side of well formula slag ladle (1); The top board opening arm (19) left end and slag ladle lid (2) links together, unlatching arm (19) right-hand member and rotating mechanism (21) are fixed together, the upper end of tensioning chain (20) is connected with unlatching arm (19), the lower end of tensioning chain (20) and the top board of slag ladle lid (2) link together, the two ends projecting shaft of rotating mechanism (21) and the expansion link head of Electrohydraulic push rod (22) link together, and Electrohydraulic push rod (22) and ground are fixed together.
2. a kind of high-temperature steel slag waste heat recovery well formula slag ladle device as claimed in claim 1, is further characterized in that: the tank body of well formula slag ladle (1) is poured into a mould by heat resistance concrete to form.
3. a kind of high-temperature steel slag waste heat recovery well formula slag ladle device as claimed in claim 1, is further characterized in that: slag ladle lid (2) is made up of Plate Welding.
4. a kind of high-temperature steel slag waste heat recovery well formula slag ladle device as claimed in claim 1, is further characterized in that: supporting retaining frame (3) is be made up of Plate Welding.
5. a kind of high-temperature steel slag waste heat recovery well formula slag ladle device as claimed in claim 1, be further characterized in that: well formula slag ladle (1) main part is installed on below ground, well formula slag ladle (1) tank mouth is a little more than ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310733718.7A CN103667555B (en) | 2013-12-26 | 2013-12-26 | A kind of high-temperature steel slag waste heat recovery well formula slag ladle device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310733718.7A CN103667555B (en) | 2013-12-26 | 2013-12-26 | A kind of high-temperature steel slag waste heat recovery well formula slag ladle device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103667555A CN103667555A (en) | 2014-03-26 |
| CN103667555B true CN103667555B (en) | 2015-12-30 |
Family
ID=50306326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310733718.7A Active CN103667555B (en) | 2013-12-26 | 2013-12-26 | A kind of high-temperature steel slag waste heat recovery well formula slag ladle device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103667555B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105112581B (en) * | 2015-09-02 | 2017-06-06 | 中冶宝钢技术服务有限公司 | One species elliptical deformation section welding slag ladle and preparation method thereof |
| CN105671226B (en) * | 2016-03-10 | 2018-01-19 | 中冶节能环保有限责任公司 | A kind of water-spraying control steam jet exhauster |
| CN107541574B (en) * | 2017-10-23 | 2023-01-24 | 中冶节能环保有限责任公司 | Link mechanism for suspension arm side-open type hot stuffy tank |
| CN107604113B (en) * | 2017-10-23 | 2023-01-24 | 中冶节能环保有限责任公司 | Suspension arm rotating shaft device of hot stuffy tank |
| CN108277313A (en) * | 2018-04-04 | 2018-07-13 | 陈婷 | A kind of metallurgical equipment deslagging device of preventing dust |
| CN108754053B (en) * | 2018-07-10 | 2024-04-19 | 中冶节能环保有限责任公司 | Pressure kettle for producing steam |
| CN114130802B (en) * | 2021-11-16 | 2022-10-14 | 中钢(石家庄)工程技术有限公司 | Steel slag treatment system and steel slag treatment process |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102534072B (en) * | 2010-12-11 | 2014-11-26 | 鞍山钢铁集团公司 | Method for utilizing disintegrating slag backwater waste heat in steel slag hot disintegrating process, and device thereof |
| CN102690906A (en) * | 2011-03-21 | 2012-09-26 | 鞍山钢铁集团公司 | Metallurgical slag waste heat recovery and utilization technology |
| CN202063926U (en) * | 2011-04-27 | 2011-12-07 | 四川大西绿建科技有限公司 | Steel slag fragmentation and heat recovery device |
| CN203007283U (en) * | 2012-11-12 | 2013-06-19 | 鞍山钢铁集团公司 | Device for utilizing the sensible heat of steel slags |
| CN103131807B (en) * | 2013-03-08 | 2014-11-19 | 济钢集团国际工程技术有限公司 | Disintegrating slag afterheat utilizing system |
-
2013
- 2013-12-26 CN CN201310733718.7A patent/CN103667555B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103667555A (en) | 2014-03-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103667555B (en) | A kind of high-temperature steel slag waste heat recovery well formula slag ladle device | |
| CN107120714A (en) | A kind of thermal power plant boiler fume afterheat is used for the whole yearization comprehensive utilization energy conserving system of central heating or heating boiler feed water | |
| CN1862208A (en) | Device for recovering waste water and waste heat | |
| CN103667554B (en) | A kind of high-temperature steel slag waste heat recovery processing method and apparatus | |
| CN107990745A (en) | A kind of device for recycling heat of smelting furnace | |
| CN110715286A (en) | Still kettle and boiler heat energy recovery system | |
| CN201652315U (en) | Boiler sewage-discharge residual heat utilizing device | |
| CN204952649U (en) | Utilize waste heat power to carry out glass steel desulfurizing tower that removes gred | |
| CN217297904U (en) | System for recovering waste heat of blast furnace slag flushing water | |
| CN102966934B (en) | Magnesium smelting reducing slag waste heat boiler | |
| CN203010573U (en) | Condensate water recovery device | |
| CN201277641Y (en) | Enclosed circulation phase-changing heat supply apparatus for industrial boiler | |
| CN202390451U (en) | Waste heat recycling system for blast-furnace slag | |
| CN202030552U (en) | Cement kiln waste heat generating wastewater recycling device | |
| CN211368787U (en) | Municipal administration heating power pipeline sluicing device | |
| CN210564980U (en) | Waste heat recovery device of air compressor | |
| CN209726852U (en) | A kind of heated-air drying cleaning raising condenser vacuum device | |
| CN207121610U (en) | Blast furnace slag quenching water steam waste heat recycling system | |
| CN209991806U (en) | Device for recovering condensed water from multiple groups of heat supply equipment in fertilizer production line | |
| CN205482473U (en) | Residual heat recycling device | |
| CN207050517U (en) | One kind plating quenching oil smoke apparatus for reusing residual heat | |
| CN205279057U (en) | Automatic recovery system of steam condensate water | |
| CN204514103U (en) | A kind of closed condensate water recovery device | |
| CN204661741U (en) | Blast furnace slag quenching water comprehensive utilization system for heat energy | |
| CN204752769U (en) | Blast furnace slag water waste heat recovery system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | 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 |