CN1132892C - Coke-receiving, core-quenching and coke-discharging equipment for horizontal coke-oven - Google Patents
Coke-receiving, core-quenching and coke-discharging equipment for horizontal coke-oven Download PDFInfo
- Publication number
- CN1132892C CN1132892C CN01131671A CN01131671A CN1132892C CN 1132892 C CN1132892 C CN 1132892C CN 01131671 A CN01131671 A CN 01131671A CN 01131671 A CN01131671 A CN 01131671A CN 1132892 C CN1132892 C CN 1132892C
- Authority
- CN
- China
- Prior art keywords
- coke
- receiving groove
- quenching
- oven
- coke receiving
- 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.)
- Expired - Lifetime
Links
Images
Abstract
The present invention relates to coke-receiving equipment, core-quenching equipment and coke-discharging equipment for a horizontal coke oven, which belongs to a discharge device of the coke oven. The coke discharging mode, the coke-receiving equipment and the coke-discharging equipment of the horizontal coke oven of the prior art have the defects of great smoke dust during coke discharge, environment pollution, high engineering cost, etc. A flat bottom coke quenching car designed by German TSOA is used for solving the defects. But, the design has the defect that zero clearance and smooth transition can not be easily ensured because the coke quenching car is butted with the coke oven by one moving turning plate. The coke discharge also requires a fixed coke pushing station and has the defects of poor structural reliability, great investment and large occupation area. The equipment can horizontally move in a longitudinal direction to tightly lean an oven door and can horizontally travel to a coke discharge position to discharge coke in an overturning mode. The defects of the prior art are overcome. When the coke is received, the bottom surface of the coke oven is smoothly connected with a coke receiving groove with no leakage. When the coke is discharged, automatic overturning action is reliable. Compared with the prior art, the equipment has the advantages of reasonable structure, construction investment reduction, few occupation area, etc.
Description
(1), technical field:
The invention belongs to the dumping device of pit kiln, relate to a kind of horizontal coke furnace that is applicable to and load red Jiao who releases, and it is delivered to the coke quenching tower quenching and delivers to the equipment that cool Jiao Tai unloads Jiao.
(2), technical background:
At present, the coking equipment of widespread use is the vertical type pit kiln in the world, because its coking chamber height is big, width is narrow, the red charge of coke that is pushed out, all be by the burnt grid of leading of coke guide, turn over, in the coke receiving groove of the quenching car that below coke guide, slowly laterally moves in bulk, by quenching car red Jiao is delivered to the coke quenching tower quenching again and deliver to cool Jiao Tai and unload Jiao.At the bottom of the quenching car body is tipper, opens side door and unload Jiao automatically.Hot Jiao turns over the process of falling quenching car from coke guide, the very big flue dust of can kicking up, contaminate environment.Need very big environmental protection investments for administering flue dust, and effect is undesirable toward contact.The U.S., Mexico, Australia and China begin to adopt a kind of horizontal coke furnace in recent years, because it does not reclaim coal gas and tar in process of coking, the pollution of environment far below above-mentioned vertical coke oven, therefore are applied to coking production gradually.But its mode of the discharging of the coke and equipment, still with vertical coke oven roughly the same, not only exist the big problem of flue dust when the discharging of the coke, and, strengthened construction investment because quenching car rail level and coke oven bottom surface will keep certain height difference.Delivered a kind of flat quenching car that is applicable to horizontal coke furnace that German ThyssenStil Otto Anlagentechnik (TSOA) designs at U.S.'s lron and steel Engineer magazine in 1999.Red charge of coke flatly, intactly can be pushed in the flat quenching groove of quenching car when the discharging of the coke, the flue dust of having kicked up when having avoided red charge of coke to turn over fragmentation has reduced the discrepancy in elevation of quenching car rail level and coke oven bottom surface simultaneously, has saved construction investment.But since quenching car when operation must and coke oven between leave certain operating distance, the quenching car of therefore above-mentioned TSOA design, at its front end a drop in leaf is set, can connects furnace bottom and flat quenching groove, red charge of coke is pulled in the flat burnt groove in stove by turnover panel.This turnover plate type connects focusing mechanism, and not only being difficult to guarantee does not have the gap between turnover panel and the fire door, realizes seamlessly transitting between furnace bottom and bottom land, and panel turnover mechanism directly contacts the reliability of influence action with scorching hot coke.When unloading Jiao, press the design of TSOA, be one fixing coke pushing station to be set unloading burnt position, shift coke onto cool Jiao Tai from flat quenching groove.This technology need increase fixedly coke pushing station of a cover, has not only increased investment but also taken the technology area.In addition, newly designed horizontal coke-oven is in order to keep temperature in the stove, the both sides fire door all is designed to upper and lower two-part structure, half fire door under only opening and closing when coalingging and discharge of the coke, and the keying fire door mechanism of prior art can not be finished the keying operation of upper and lower two sections fire doors.
(3), summary of the invention:
Purpose of the present invention is intended to overcome the shortcoming of existing flat quenching car, provide a kind of horizontal coke-oven that is applicable to connect Jiao, quenching and unload burnt equipment, not only have flat quenching car and when meeting Jiao, do not have the advantage that dust pollution is few, construction investment is economized, and make that the linking between the fire door and flat coke receiving groove is smooth-going reliable when the discharging of the coke, simultaneously, quenching car can be tumbled voluntarily and be unloaded Jiao, saves fixedly coke pushing station of a cover, has saved investment and area occupied.
Above-mentioned purpose of the present invention is achieved through the following technical solutions: a kind of horizontal coke-oven that is used for connects Jiao, quenching and unloads burnt equipment, it is a kind of flat coke receiving groove that is provided with, but longitudinal translation is close to fire door and meets Jiao, and the vehicle frame that can laterally move is arranged, and can transport coke to the coke quenching tower quenching; And there is tilting mechanism to unload the burnt car of burnt fortune at cool Jiao Tai.It comprises: fire door opening and closing mechanism, coke receiving groove, coke receiving groove translation mechanism, coke receiving groove tilting mechanism, traveling mechanism of the larger traveller, vehicle frame, drivers' cab, electric panel room, Hydraulic Station, air compression station etc.
The fire door opening and closing mechanism is finished the translation and the lifting of coke side fire door, mainly is made up of support, guide frame, fire door hook and two groups of hydro-cylinders.Guide frame is the support translation relatively, the hooking device upper and lower motion of guide frame relatively.This structure can have bigger lift stroke, satisfies the requirement that upper and lower two sections fire doors open and close.
Coke receiving groove is by a flat underside and two U-steel structures that sidewall is formed, and upper end and both ends open, both sides and base plate lining are with the heat resisting iron plate.Groove width is slightly larger than the coking chamber width, and groove is tall and big in the charge of coke height, considers the natural grade that pile up at the charge of coke two ends, and flute length is greater than charge of coke length.The coke receiving groove seat is on rigid frame, and the bottom land height is a little less than furnace bottom.But the relative rigid frame side direction of coke receiving groove or vertically tumble, according to the coke receiving groove of the setting direction of tumbling, coke receiving groove one side (end) and rigid frame are hinged, and coke receiving groove can overturn around hinge.The sidewall of coke receiving groove upset side can be opened automatically by gravity when tumbling, so that coke is drawn off coke receiving groove.Behind the coke receiving groove Reversion Level, sidewall automatically resets by gravity, and fixed by pneumatic lock.The rigid frame of coke receiving groove bottom props up wheel seat on vehicle frame by two guide rails and one group, and vehicle frame can longitudinal translation relatively.
The coke receiving groove translation mechanism is made up of oil motor-transmission shaft-exposed gear-tooth bar.Tooth bar is contained on the rigid frame, and all the other partly are contained on the vehicle frame, can drive rigid frame and the coke receiving groove longitudinal translation is close to fire door, connects the defocused car body central position of returning and delivers to quenching and unload burnt position with horizontal operation.Be close to behind the fire door or after recentering all with the locking of pneumatic wedge shape pin block.
The coke receiving groove tilting mechanism promotes guide link-crank leverage by hydro-cylinder (vertically tumble and can adopt oil motor-gear-tooth bar), and an end of crank is hinged on the coke receiving groove bottom, promotes coke receiving groove and tumbles to a side (end) around its hinge with the rigid frame connection.Because the coke receiving groove tilting mechanism is installed on the vehicle frame, and the relative vehicle frame of coke receiving groove vertically moves, and the design is fixed on bottom land with the bearing pin of crank and bottom land hinge, and length is greater than the translation distance of groove, when the coke receiving groove longitudinal translation, the pin-and-hole of crank and bearing pin be relatively sliding vertically.
Traveling mechanism of the larger traveller is contained on the vehicle frame, is made up of electric motor-step-down gear-wheel assembly.Drive the burnt car cross running of fortune.
Two partly about vehicle frame divided, and wherein the mechanical component of coke receiving groove and translation thereof, tilting mechanism is in a side, and all electric motor, hydro-cylinder, oil motor, drivers' cab, electric panel room, Hydraulic Station and compressed air station etc. are at opposite side.So both can avoid the temperatures involved of coke, the vapour corrosion in the time of quenching can being avoided again.
But but the present invention is owing to adopted the flat coke receiving groove of a kind of not only longitudinal translation but also lateral tilt, meeting Jiao with existing coke guide-quenching car compares, not only can when meeting Jiao, avoid charge of coke to turn over the dust pollution environment, and reduced at the bottom of the coke oven and the discrepancy in elevation of quenching car rail level, saved construction investment, and overcome prior art and differed before and after making each fire door size because of construction error, the thermal expansion error of each coke oven, cause panel turnover mechanism to be difficult to realize the shortcoming that seamlessly transits, guaranteed coke receiving groove flatly near fire door, realized that charge of coke is from pass to coke receiving groove in the stove smooth-goingly.The present invention can also make coke receiving groove front and back two-direction moving, realizes that a coke receiving car is that front and back two coke discharging stoves connect Jiao and quenching.The present invention need not to add in addition fixedly coke pushing station, and coke receiving car can unload Jiao voluntarily, saved investment and taken up an area of, the present invention simultaneously on arranging with components and parts such as electric, hydraulic pressure away from coke receiving groove, avoided the influence of high temperature and corrosion steam, prolonged work-ing life.Fire door opening and closing mechanism of the present invention can also satisfy the requirement that upper and lower two sections fire doors open and close.
(4) description of drawings:
Fig. 1, for a kind of horizontal coke-oven that is applicable to connects Jiao, quenching and unloads the structural representation (front view) of burnt equipment,
Fig. 2, be the vertical view of Fig. 1,
Fig. 3, be the side-view of Fig. 2,
Fig. 4, for coke receiving groove tilting mechanism and translation mechanism synoptic diagram (facing),
Fig. 5, for coke receiving groove tilting mechanism and translation mechanism synoptic diagram (looking up),
Fig. 6, be longitudinally towards the synoptic diagram of an end tilting mechanism.
(5), embodiment:
As Fig. 1, Fig. 2, shown in Figure 3, a kind of horizontal coke-oven that is applicable to connects Jiao, quenching and unloads burnt equipment, partly is made up of fire door opening and closing mechanism 1, coke receiving groove 2, coke receiving groove translation mechanism 3, coke receiving groove tilting mechanism 4, traveling mechanism of the larger traveller 5, vehicle frame 6, drivers' cab 7, electric panel room 8, Hydraulic Station 9, air compression station 10 etc.Two cover fire door opening and closing mechanism 1, traveling mechanism of the larger traveller 5, drivers' cab 7, electric panel room 8, Hydraulic Station 9, compressed air station 10 are installed in a side of vehicle frame 6, and the opposite side of vehicle frame 6 is installed coke receiving groove 2.
Two cover fire door opening and closing mechanism 1 are arranged in the present embodiment, and equipment can be forward and backward two coke discharging stoves 40 and opens and closes fire door.As shown in Figure 3: the fire door opening and closing mechanism by support 11, saddle 12, fire door hooking device 13, carry a hydro-cylinder 14 and translation hydro-cylinder 15 is formed.Fire door hooking device 13 can move up and down along saddle 12.Saddle 12 is by a guide rail and a wheel 16, and support 11 moves horizontally relatively.13 lift strokes of linking up with fire door can satisfy the requirement that opens and closes upper and lower two sections fire doors 41,42.
Shown in Fig. 4,5: coke receiving groove 2 is the upper end that is made of a flat underside and two sidewalls and the U-steel structure of both ends open, side plate and base plate lining are with the heat resisting iron plate, groove width is slightly larger than the coking chamber width, and groove is tall and big in the charge of coke height, and flute length is greater than charge of coke length.The coke receiving groove seat is on rigid frame 17, and by hinge 18 and rigid frame 17 connections, coke receiving groove 2 can turn over to an inclination around hinge 18.The coke receiving groove sidewall 19 of tumbling is movable wallboard, opens automatically by gravity when coke receiving groove is tumbled, so that coke is drawn off coke receiving groove.Behind the coke receiving groove Reversion Level, sidewall 19 automatically resets by gravity, is locked with pneumatic pin 20.Rigid frame 17 bottoms are fixed with two guide rails 21 and are bearing on 8 wheels 22, and a wheel is fixed on the vehicle frame 6.But coke receiving groove 2 and rigid frame 17 relative vehicle frame 6 longitudinal translations.
Coke receiving groove translation mechanism 3 is made up of oil motor 23, transmission shaft 24, exposed gear 25 and tooth bar 26.Tooth bar 26 is contained in rigid frame 17 bottoms, and all the other partly are contained on the vehicle frame 6, can drive the forward and backward two-direction moving of rigid frame and coke receiving groove, and is close to the fire door of front and back two coke discharging stoves respectively, connects the defocused vehicle frame central position of returning.Be close to behind the fire door or after recentering all with 27 lockings of pneumatic wedge shape pin block.
Coke receiving groove tilting mechanism 4 is made up of the leverage of two cover hydro-cylinder 28, guide link 29 and cranks 30, is installed on the vehicle frame 6 the bottom hinge knot of the other end of crank 30 and coke receiving groove 2.Can promote coke receiving groove 2 turns over to an inclination around the connection hinge 18 of itself and rigid frame 17.Crank 30 cuts with scissors the bearing pin of tying 31 with coke receiving groove 2, and two ends are fixed on the coke receiving groove bottom.The length of bearing pin 31 needs the length of translation greater than coke receiving groove 2.When the relative vehicle frame translation of coke receiving groove, the pin-and-hole of crank 30 and bearing pin 31 be relatively sliding vertically.
Traveling mechanism of the larger traveller 5 shown in Figure 3 is made up of electric motor 32, step-down gear 33, transmission shaft 34, wheel assembly 35.Wheel laterally moves along track 43.
Figure 6 shows that the design that coke receiving groove 2 is longitudinally tumbled towards an end, its tilting mechanism is by fluid motor-driven gear 36-tooth bar 37-crank 30.Tooth bar 37 can vertically move along guide path, throw crank 30.When the coke receiving groove longitudinal translation, the hinged block 38 of crank 30 and coke receiving groove 2 is along the 39 vertical relatively sliding of the guide chute on the coke receiving groove.Other is partly identical with the equipment that turns over towards an inclination.
Working process: the equipment cross running is to stokehold to be discharged of the coke, and the fire door opening and closing mechanism is aimed at fire door, wins fire door, hangs on the hooking device; Equipment laterally moves once more, and coke receiving groove is aimed at fire door, and the longitudinal translation coke receiving groove is close to fire door, and tight with pneumatic lock, treat that red Jiao is pulled on the coke receiving groove after, the longitudinal translation coke receiving groove is return the vehicle frame central position once more, locks calmly with pneumatic once more.Equipment is traversing once more aims at fire door with the fire door opening and closing mechanism, and close fire door, equipment travels to coke quenching tower immediately, at the bottom of coke receiving groove partly delivered to tower, treat that the water spray extinguishes coke after, before equipment continues laterally to move to cool burnt platform, start the coke receiving groove tilting mechanism, coke is discharged on the quenching platform,, prepares next stove and meet Jiao again with the coke receiving groove homing.
Claims (7)
1, a kind of horizontal coke-oven that is used for connects Jiao, quenching and unloads burnt equipment, comprise: by the vehicle frame (6) of traveling mechanism (5) driving, be positioned at the coke receiving groove (2) on the vehicle frame, and electrical equipment, hydraulic efficiency plant, it is characterized in that: on the described vehicle frame (6), be provided with two cover fire door openers (1), traveling mechanism of the larger traveller (5), drivers' cab (7), electric panel room (8), Hydraulic Station (9), air compression station (10) in the one side; Described coke receiving groove (2) is arranged on the opposite side of vehicle frame (6), be the upper end that constitutes by a flat underside and two sidewalls and the U-steel structure of both ends open, coke receiving groove (2) is positioned at above the rigid frame (17), and by hinge (18) and rigid frame connection, guide rail (21) is equipped with in the bottom surface of rigid frame (17), be bearing in vehicle frame (6) fixed and prop up on the wheel (22), and drive by the translation mechanism (3) of coke receiving groove, the bottom surface of coke receiving groove (2) also is hinged with the tilting mechanism (4) that is installed on the vehicle frame (6).
2, connect Jiao, quenching and unload burnt equipment according to the described horizontal coke-oven that is used for of claim 1, it is characterized in that: described door opened mechanism (1), form by being fixed on the hydro-cylinder (14) of carrying that support (11) on the vehicle frame (6), the hook (13) that moves up and down with the saddle (12) of support (11) by guide rail, wheel (16) relative translation, along saddle (12) and the translation hydro-cylinder (15) that drives saddle and driving fire door link up with.
3, connect Jiao, quenching and unload burnt equipment according to the described horizontal coke-oven that is used for of claim 1, it is characterized in that: the translation mechanism (3) of described coke receiving groove (2), drive transmission shaft (24) and exposed gear (25) by the oil motor (23) that is installed on the vehicle frame (6), meshed transmission gear is installed in the tooth bar (26) of rigid frame (17) bottom, and the rigid frame band coke receiving groove (2) can the front and back two-direction moving.
4, connect Jiao, quenching and unload burnt equipment according to the described horizontal coke-oven that is used for of claim 1, it is characterized in that: the tilting mechanism (4) of described coke receiving groove (2), by being installed in the cover of two on the vehicle frame (6) hydro-cylinder (28), promote two cover guide link (29) and crank leverages (30) respectively, the other end of crank (30) is hinged on the bottom of coke receiving groove (2), crank (30) is tied by bearing pin (31) hinge with coke receiving groove (2), the bearing pin two ends are fixed on bottom land, the pin-and-hole of crank and bearing pin (31) are slidingly matched, and the length of bearing pin is greater than the length of coke receiving groove translation.
5, connect Jiao, quenching and unload burnt equipment according to claim 1 or the 4 described horizontal coke-ovens that are used for, it is characterized in that: described coke receiving groove (2), the sidewall (19) of its side of tumbling is a portable plate, automatically open by gravity when tumbling, automatically reset behind the Reversion Level, and lock with pneumatic pin (20).
6, connect Jiao, quenching and unload burnt equipment according to the described horizontal coke-oven that is used for of claim 1, it is characterized in that: described traveling mechanism of the larger traveller (5), by electric motor (32), through step-down gear (33), drive transmission shaft (34), drive wheel assembly (35) along laterally operation of track (43).
7, connect Jiao, quenching and unload burnt equipment according to claim 1 or the 3 described horizontal coke-ovens that are used for, it is characterized in that: the translation mechanism of described coke receiving groove (3), after coke receiving groove (2) is close to fire door or after returning to the central position, all use pneumatic wedge shape pin block (27) locking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01131671A CN1132892C (en) | 2001-12-27 | 2001-12-27 | Coke-receiving, core-quenching and coke-discharging equipment for horizontal coke-oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01131671A CN1132892C (en) | 2001-12-27 | 2001-12-27 | Coke-receiving, core-quenching and coke-discharging equipment for horizontal coke-oven |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1354219A CN1354219A (en) | 2002-06-19 |
| CN1132892C true CN1132892C (en) | 2003-12-31 |
Family
ID=4670780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN01131671A Expired - Lifetime CN1132892C (en) | 2001-12-27 | 2001-12-27 | Coke-receiving, core-quenching and coke-discharging equipment for horizontal coke-oven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1132892C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1301311C (en) * | 2005-04-18 | 2007-02-21 | 南昌凯马有限公司 | Continuous loader of coal oven |
| CN101649210B (en) * | 2009-06-18 | 2014-01-01 | 张家港长力机械有限公司 | Water accumulating quenched-coke receiving slot |
-
2001
- 2001-12-27 CN CN01131671A patent/CN1132892C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN1354219A (en) | 2002-06-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2007223708B2 (en) | Improved method and apparatus for producing coke | |
| US7998316B2 (en) | Flat push coke wet quenching apparatus and process | |
| US4391674A (en) | Coke delivery apparatus and method | |
| US4196053A (en) | Equipment for operating coke oven service machines | |
| CN104843020B (en) | A kind of railway automatic dumping car | |
| CN104312596B (en) | One kind leads the moveable tamping coke furnace U-tube smoke-guiding car of smoke pipe and its application method | |
| CN1132892C (en) | Coke-receiving, core-quenching and coke-discharging equipment for horizontal coke-oven | |
| CN107858152A (en) | A kind of two sections of coke oven coal-charging pushing systems of heat exchange type and its coal-charging pushing method | |
| US1542951A (en) | Car-dumping apparatus | |
| CN204750166U (en) | Side door switching device | |
| CN208980643U (en) | Dual hopper charging apparatus with automatic discharging turnover panel and sealed gate | |
| US4312712A (en) | Coke car for a battery of coke ovens | |
| US4186057A (en) | Gas extracting and purifying equipment | |
| CN106753451A (en) | For the opening and closing device of stamp-charging coke dust collection for charging smoke collecting port | |
| US4141299A (en) | Dumping railway quench car | |
| CN2543959Y (en) | Sphere sealing guiding cover for coal loading vehice of coke furnace | |
| CN2279350Y (en) | Mechanical bottom-opening type coal lifter | |
| CN115007844B (en) | Blast furnace iron receiving method for preheating scrap steel of hot-metal ladle | |
| CN208155043U (en) | A kind of environmentally friendly car type furnace with shock-absorbing function | |
| SU1730121A1 (en) | Fire-fighting wagon | |
| CN101012383A (en) | Fixed-point coke catching and quenching car for vertical coke oven | |
| CN115447621A (en) | Rail mounted fortune sediment uninstallation system based on automation mechanized operation | |
| CN201545807U (en) | Tiltable cock receiving tank of coke quenching car | |
| CN113980692A (en) | Coke quenching car for coke oven and coke production line with smoke secondary combustion function | |
| CN108285796A (en) | A kind of pressure float coal machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: TAIYUAN HEAVY INDUSTRY CO. Free format text: FORMER OWNER: TAIYUAN HEAVY MACHINERY GROUP CO., LTD. Effective date: 20080905 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C56 | Change in the name or address of the patentee |
Owner name: TAIYUAN HEAVY MACHINERY GROUP CO., LTD. Free format text: FORMER NAME OR ADDRESS: TAIYUAN HEAVY MACHINERY(GROUP )CO.LTD. |
|
| CP03 | Change of name, title or address |
Address after: No 53, Jade Street, Taiyuan, Shanxi, Hexi District Patentee after: Taiyuan Heavy Machinery Group Co.,Ltd. Address before: No. 53 Jade Road Street, Wan Berlin District, Shanxi, Taiyuan Patentee before: TAIYUAN HEAVY DUTY MACHINERY GROUP Co.,Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20080905 Address after: No 53, Jade Street, Taiyuan, Shanxi, Hexi District Patentee after: TAIYUAN HEAVY INDUSTRY Co.,Ltd. Address before: No 53, Jade Street, Taiyuan, Shanxi, Hexi District Patentee before: Taiyuan Heavy Machinery Group Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20031231 |
|
| CX01 | Expiry of patent term |