CN101825397B - Bearing beam for circular cooler trolley - Google Patents
Bearing beam for circular cooler trolley Download PDFInfo
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- CN101825397B CN101825397B CN2010101712950A CN201010171295A CN101825397B CN 101825397 B CN101825397 B CN 101825397B CN 2010101712950 A CN2010101712950 A CN 2010101712950A CN 201010171295 A CN201010171295 A CN 201010171295A CN 101825397 B CN101825397 B CN 101825397B
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Abstract
The invention relates to a bearing beam for a circular cooler trolley, which is used for supporting a circular cooler trolley. The bearing beam comprises a rectangular beam and a triangular beam arranged on the rectangular beam. The upper flange of the rectangular beam extends towards two sides to be widened so as to be used as a bottom plate of the triangular beam, the widened parts of the upper flange of the rectangular beam extending towards the two sides are respectively provided with a ventilation hole, and two side plates which are abutted with the bottom plate of the triangular beam are used as a front side plate and a back side plate of the triangular beam; the front side plate and the back side plate respectively comprise a side plate framework and a grid device arranged on the side plate framework; the grid device comprises a plurality of parallel grids, and the included angles of the grids and the bottom plate of the triangular beam are identical to the included angles of the side plate frameworks with the grids and the bottom plate of the triangular beam. The invention provides a bearing beam for the circular cooler trolley with an optimized structure, thereby effectively solving the problem of mineral aggregate residues on the upper grid eaves of the horizontal rectangular through holes of the side plates of the existing trolley bearing beam, realizing the safe discharge, protecting the static seal and the lower flat plate of the trolley, and improving the operating efficiency of the whole machine.
Description
Technical field
The present invention relates to central cooler, particularly a kind of circular cooler trolley backbar.
Background technology
See also Fig. 1 and Fig. 2, Fig. 1 is the overall structure discharging sketch map of existing central cooler, and Fig. 2 is the partial top view of existing central cooler in the cooling zone.
Central cooler roughly is divided into high-temperature region, middle warm area, low-temperature space and non-cooling zone (high-temperature region, middle warm area and low-temperature space are referred to as the cooling zone).The side plate of each chassis 11 and inboard sideboard 12, outside breast board 13 and two adjacent chassis backbars 14 constitutes a central cooler cooling work unit.In the course of work, chassis 11 and chassis backbar 14 be in real time around the center uniform rotation of central cooler, and the mineral aggregate after sintering is accomplished is arranged in through the feed chute 15 of non-cooling zone loading station on the side plate of trolley grating plate 111 and chassis backbar 14 of chassis 11.That is to say that mineral aggregate to be cooled is arranged in by inboard breast board 12, outside breast board 13, the side plate of two adjacent chassis backbars 14 and the spatial accommodation that trolley grating plate 111 constitutes successively.Meanwhile, the rotation along with chassis 11 gets into three cooling zones successively: high-temperature region, middle warm area and low-temperature space return back to non-cooling zone unloading station, the completion discharge operation afterwards.At last, bogie wheels 112 rises along bend, and chassis 11 gets into the loading area charging after being reset to level again, circulation according to this.
At unloading station; Chassis 11 is under the effect of himself and mineral aggregate deadweight; Bogie wheels 112 descends along the discharging guide rail, and chassis 11 around its with preposition chassis backbar 14 between jointed shaft 16 do flip-flop movement, trolley grating plate 111 is downward-sloping with chassis lower floor flat board 113; Thereby make in the aforementioned spatial accommodation mineral aggregate and scatter mineral aggregate in chassis lower floor dull and stereotyped 113, along side plate and the trolley grating plate 111 and chassis lower floor flat board 113 landings to the discharge chute 17 of chassis backbar 14.
Publication number is applicant's patent application formerly of CN101482370, discloses a kind of backbar that is used for circular cooler trolley.
Referring to Fig. 2 and Fig. 3, wherein, Fig. 2 is the partial top view of existing central cooler in the cooling zone; Fig. 3 is existing circular cooler trolley backbar front view.
The chassis backbar 14 of central cooler is used to support chassis 11.Chassis backbar 14 supports the material that said central cooler transports with trolley grating plate 111.
Existing circular cooler trolley backbar 14 is mainly formed (referring to Fig. 1) by the rectangular beam and top three cantilevered corner beams of bottom, and three cantilevered corner beams partly comprise two side plates (front side board 141 and back side panel 142) and a base plate.Front side board 141 and back side panel 142 be respectively arranged with some radially horizontal rectangular through hole 14 '; When central cooler carries out cooling operations; Cooling air is in the chassis ventilating layer gets into three cantilevered corner beams of chassis backbar 14; Cold wind just can cool off this regional mineral aggregate, thereby improve the cooling effect of chassis backbar 14 top mineral aggregates through these horizontal rectangular through holes 14 ' enter into front side board 141 and back side panel 142 upper areas this moment.
Yet existing central cooler receives the restriction of self structure, after discharge operation is accomplished, the horizontal rectangular through hole 14 on chassis backbar 14 side plates ' grid section on the eaves place all have mineral aggregate residual, can't satisfy the requirement of complete unloading.Remain in the mineral aggregate at eaves place on the grid section; In the chassis reseting procedure, there is the possibility that scatters, when chassis will return to horizontal level, scatters the just not landing downwards again of mineral aggregate on the chassis lower floor flat board; Scatter at the mineral aggregate at the static seal device place on the chassis lower floor flat board and will be sandwiched between the seal of chassis lower floor flat board and static seal device; Damage static seal device, when serious, can cause the dull and stereotyped inelastic deformation of chassis lower floor.
In view of this, demand urgently being optimized design, to satisfy complete unloading, the basic demand that protection static seal device and chassis lower floor are dull and stereotyped, the cooling effect and the complete machine operating efficiency of raising central cooler to the lateral plate structure of existing chassis backbar 14.
Summary of the invention
To above-mentioned defective; The technical problem that the present invention solves is; A kind of circular cooler trolley backbar of structure optimization is provided; Mineral aggregate residue problem with eaves place on the grid section of the horizontal rectangular through hole of effective solution chassis backbar side plate realizes complete unloading, and then improves the cooling effect and the complete machine operating efficiency of central cooler.
A kind of circular cooler trolley backbar provided by the invention is used for the support ring cold machine trolley, and said backbar comprises rectangular beam and is positioned at three cantilevered corner beams on the said rectangular beam;
The upper flange of said rectangular beam extends to both sides and widens the base plate as said three cantilevered corner beams; The upper flange of said rectangular beam extends widened section to both sides and is provided with air vent, with front side board and the back side panel of adjacent two side plates of the base plate of said three cantilevered corner beams as three cantilevered corner beams;
Forward and backward side plate comprises the side plate framework respectively and is installed in the grid section device on the said side plate framework;
Said grid section device comprises many grid sections that are arranged in parallel, and the angle between said grid section and the said three cantilevered corner beam base plates equals the side plate framework at said grid section place and the angle between the said three cantilevered corner beam base plates.
Preferably, said side plate framework and said grid section device are installed through the transition gusset piece.
Preferably, the gap between the adjacent said grid section on the plate framework of the same side is confirmed according to the size of circular cooler trolley upper strata comb plate setting.
Preferably, the side plate framework at said grid section place is satisfied with said three cantilevered corner beam base plate angle β: 35 °＜β＜90 °.
Preferably, be provided with first reinforcement between the side plate framework of forward and backward side plate; The side plate framework of said first reinforcement and said forward and backward side plate all offsets fixing.
Preferably, said first reinforcement is vertical with plane, said forward and backward side plate place respectively.
Preferably, the side plate framework of said forward and backward side plate includes space bar, between the side plate framework space bar of the side plate framework space bar of said front side board and said back side panel, is provided with first reinforcement.
Preferably, the side plate framework of said forward and backward side plate also comprises second reinforcement respectively, the vertical setting of grid section on said second reinforcement and this side plate framework.
Preferably, the quantity of said second reinforcement is several, and is arranged in parallel.
Preferably, said first reinforcement and said second reinforcement fix.
Compared with prior art, the present invention is directed to the circular cooler trolley backbar and carried out Optimal Structure Designing.Particularly, two side plates of three cantilevered corner beams of circular cooler trolley backbar comprise the side plate framework respectively and are installed in the grid section device on the side plate framework; And the grid section device comprises many grid sections that are arranged in parallel, and grid section and three cantilevered corner beam base plate angles equal side plate framework and said three cantilevered corner beam base plate angles, and the angle between side plate framework and the said three cantilevered corner beam base plates is greater than the material angle of repose.Be obliquely installed because grid section is the side plate along three cantilevered corner beams, so not have mineral aggregate residual at the grid section place, thereby can realize the side plate complete unloading of three cantilevered corner beams.
Description of drawings
Fig. 1 is the overall structure discharging sketch map of existing central cooler;
Fig. 2 is the partial top view of existing central cooler in the cooling zone;
Fig. 3 is existing circular cooler trolley backbar front view;
Fig. 4 is the assembly relation between inboard breast board, outside breast board and the adjacent both sides chassis backbar that shows each central cooler cooling work unit described in the specific embodiment, and this figure is the formed shaft side figure in visual angle laterally, inboard of central cooler;
Fig. 5 is a B-B partial sectional view shown in Figure 4;
Fig. 6 is the partial top view of the said central cooler of the embodiment of the invention in the cooling zone;
Fig. 7 is the said circular cooler trolley backbar of an embodiment of the invention front view;
Fig. 8 is an A shown in Figure 7 portion enlarged drawing;
When not installing the grid section device for three cantilevered corner beam side plates of the said chassis backbar of the embodiment of the invention, Fig. 9 looks up the angle shaft side figure.
Among Fig. 4-Fig. 9:
The specific embodiment
Core of the present invention provides a kind of circular cooler trolley backbar of structure optimization, and the mineral aggregate residue problem with eaves place on the grid section of the horizontal rectangular through hole of effective solution backbar side plate realizes complete unloading, and then improves the complete machine operating efficiency.
Be without loss of generality, specify this embodiment below in conjunction with Figure of description.
Among this paper the related noun of locality inside and outside with the central cooler center as the benchmark definition, the related noun of locality is forward and backward to be that rotation direction with central cooler is the benchmark definition.The use that should be appreciated that the said noun of locality such as inside and outside, forward and backward does not limit the scope that the application asks for protection.
In this embodiment, constitute the basic function parts of said central cooler and position annexation each other is identical with prior art, can be in the lump referring to Fig. 1.Particularly; Referring to Fig. 4; Each chassis and inboard breast board 41, outside breast board 42 and two adjacent chassis backbars---preposition chassis backbar 14 ' back side panel 142, rearmounted chassis backbar 14 " front side board 141 constitute several central cooler cooling work unit, circumferentially setting gradually respectively along central cooler; In the course of work, along the guide rail that is fixedly arranged on the support, chassis 11 and the center steering motion of chassis backbar 14 around central cooler are accomplished operations such as cloth, cooling and discharging.Wherein, the operation of cooling mineral aggregate specifically realizes through supply air system.
In addition, the central cooler of function of recovering waste heat is set, functional parts such as flue gas cover and flue gas cover sealing also need be set for needs.
Need to prove that the structure of aforementioned main function components and operation principle and prior art are basic identical, those skilled in the art can realize based on prior art fully, so this paper repeats no more.
Realize optimizing structure of complete unloading for the three cantilevered corner beam side plates of setting forth the said circular cooler trolley backbar of this programme in detail, specify below in conjunction with accompanying drawing.
Referring to Fig. 4 to Fig. 9, wherein, Fig. 4 is the formed shaft side figure in visual angle laterally, inboard of central cooler; Fig. 5 is a B-B partial sectional view shown in Figure 4; Fig. 6 is the partial top view of the said central cooler of the embodiment of the invention in the cooling zone; Fig. 7 is the said circular cooler trolley backbar of an embodiment of the invention front view; Fig. 8 is an A shown in Figure 7 portion enlarged drawing; When not installing the grid section device for three cantilevered corner beam side plates of the said chassis backbar of the embodiment of the invention, Fig. 9 looks up the angle shaft side figure.
The said circular cooler trolley backbar of the embodiment of the invention is used for the support ring cold machine trolley, and said backbar comprises rectangular beam 11 and is positioned at three cantilevered corner beams on the said rectangular beam 11.
The upper flange of said rectangular beam 11 extends to both sides and widens as said three cantilevered corner beam base plates 143; The upper flange of said rectangular beam 11 extends widened section to both sides and is provided with air vent, and two side plates of three cantilevered corner beams---front side board 141, back side panel 142 and said three cantilevered corner beam base plates 143 are adjacent.
In order to guarantee the support strength of grid section device, be installed with two transition connecting plate 27,27 ' in front side board framework 1411 inboards.Two transition connecting plate 27,27 ' are installed in the two ends up and down of the inboard of front side board framework 1411 perforates respectively, two transition connecting plate 27,27 ' have the first that overlaps mutually with front side board framework 1411 and not with the second portion of front side board framework 1411 overlap joints.Grid section 1412 be fixedly mounted on two transition connecting plate 27,27 ' not with the second portion of front side board framework 1411 overlap joints, thereby guarantee the support strength of grid section device.
In order further to improve support strength, transition connecting plate 27 ' specifically can also be angle steel.
Equally, back side panel 142 comprises back side panel framework 1421 and is installed in the grid section device in 1421 perforates of back side panel framework.
Equally, in order to guarantee the support strength of grid section device, be installed with two transition connecting plate 27 in back side panel framework 1421 inboards.Two transition connecting plate 27 are installed in the two ends up and down of the inboard of back side panel framework 1421 perforates respectively, two transition connecting plate 27 have the first that overlaps mutually with back side panel framework 1421 and not with the second portion of back side panel framework 1421 overlap joints.Grid section 1412 be fixedly mounted on two transition connecting plate 27 not with the second portion of back side panel framework 1421 overlap joint, thereby guarantee the support strength of grid section device.
The grid section device of installing on the forward and backward side plate 141,142 includes the many grid sections 1412 that are arranged in parallel, and the angle β between said grid section 1412 and the said three cantilevered corner beam base plates 143 equals the forward and backward side plate framework 1411,1421 at these grid section 1412 places and the angle between the said three cantilevered corner beam base plates 143.Said grid section is obliquely installed the tangential direction basically identical that the floor projection of grid section 1412 and central cooler are circumferential along forward and backward side plate 141,142.
Angle between front side board framework 1411 and the said three cantilevered corner beam base plates 143
1Be greater than or equal to the angle of repose of the mineral aggregate that is cooled.Angle between back side panel framework 1421 and the said three cantilevered corner beam base plates 143
2Be greater than or equal to the angle of repose of the mineral aggregate that is cooled.
According to the situation that trolley grating plate 111 is provided with, angle between front side board framework 1411 and the said three cantilevered corner beam base plates 143
1Less than angle between back side panel framework 1421 and the said three cantilevered corner beam base plates 143
2
Obviously, for angle of repose is approximately the mineral aggregate about 35 °, as long as control forward and backward side plate 141,142 and horizontal plane are that angle between the three cantilevered corner beam base plates 143 is greater than 35 ° of basic needs that promptly can satisfy complete unloading.That is, this angle can be selected arbitrarily between 35 °～90 °, satisfies 35 °＜α
1, α
2＜90 ° of these conditions.Certainly, this angle
1, α
2Big more with the difference of mineral aggregate angle of repose, be beneficial to the realization complete unloading more, those skilled in the art can confirm the size of this angle based on different central cooler designs, as long as satisfy the use needs all in the scope that the application asks for protection.
For angle of repose was approximately the mineral aggregate about 35 °, the angle between forward and backward side plate framework 1411,1421 and the said three cantilevered corner beam base plates 143 satisfied: 35 °＜α＜90 °.Therefore, the angle β between said grid section 1412 and the said three cantilevered corner beam base plates 143 also need satisfy: 35 °＜β＜90 °.
The upper flange of said rectangular beam 11 also is provided with interior three cantilevered corner beams 12, to prevent that mineral aggregate takes place in the triangle beam accumulates phenomenon.The side plate of interior three cantilevered corner beams 12 is two solid slabs, and angle need be greater than or equal to the angle of repose of the mineral aggregate that is cooled equally between said two solid slabs and the three cantilevered corner beam base plates 143.
Because gap 141 between the front side board grid section ', gap 142 between the back side panel grid section ' existence; The mineral aggregate that is scattered from this slit can be along two solid slab landings of interior three cantilevered corner beams 12; The air vent 143a, the 143b that extend the widened section setting to both sides through rectangular beam 11 upper flanges fall in the chassis lower floor dull and stereotyped (referring to the piece number 113 of Fig. 1), and the material that falls with trolley grating plate 111 slits mixes.Thereby prevent to take place in three cantilevered corner beams mineral aggregate effectively and accumulate phenomenon.
Gap between the adjacent said grid section 1412---gap 141 between the front side board grid section ', gap 142 between the back side panel grid section ' all can confirm according to the size that the trolley grating plate 111 of central cooler is set.
Referring to Fig. 9, be provided with first reinforcement 26 between front side board framework 1411, the back side panel framework 1421, to strengthen the structural stability of three cantilevered corner beams.
Said first reinforcement 26 all offsets with front side board framework 1411 and back side panel framework 1421 and transition connecting plate 27,27 ', and said first reinforcement 26 offsets fixing with front side board framework 1411 and back side panel framework 1421.In order further to guarantee the support strength of said first reinforcement 26, said first reinforcement 26 all offsets fixing with front side board framework 1411 and back side panel framework 1421 and transition connecting plate 27,27 '.The said fixing mode specifically can be fixed through welding manner.
In order to improve support strength, said first reinforcement 26 is respectively with said two side plates---plane, forward and backward side plate 141,142 place is vertical.
Referring to Fig. 7, in order further to improve the triangle girder construction stability of chassis backbar, front side board framework 1411 and back side panel framework 1421 can comprise respectively one, two or more forward and backward side plate framework space bar 1411 ', 1421 '.Front side board framework space bar 1411 ' with back side panel framework space bar 1421 ' corresponding setting, each front side board framework space bar 1411 ' and corresponding back side panel framework space bar 1421 of this space bar ' between first reinforcement 26 is set.
Equally, referring to Fig. 9, said front side board framework 1411, back side panel framework 1421 can also comprise respectively with this side plate framework on grid section 1412 vertically disposed second reinforcements 25.That is, can be provided with second reinforcement 25 between the grid section 1412 of front side board framework 1411 (Fig. 9 is the structure chart that grid section 1412 is not installed).Also can be provided with second reinforcement 25 between the grid section 1412 of back side panel framework 1421.
In order to strengthen the intensity of second reinforcement 25, second reinforcement 25 specifically can be angle steel, and second reinforcement 25 and first reinforcement 26 offset fixing (mode such as welding).
In order to guarantee the support strength of grid section 1412; Second reinforcement 25 can run through whole side plate 141,142; First reinforcement 26 can be provided with draw-in groove structure (not shown); Said draw-in groove structure and second reinforcement, 25 respective outer side edges, said first reinforcement 26 can also adopt welding manner further fixing with said second reinforcement 25 after assembling was accomplished.
Preferred version is several referring to the quantity of second reinforcement 25 shown in Figure 9, can be arranged in parallel.
The two ends of said grid section 1412 connect version and 27 (27 ') offseted fixingly with transition, that the middle part and second reinforcement 25 offset is fixing modes such as () welding.
The above is merely preferred implementation of the present invention, does not constitute the qualification to protection domain of the present invention.Any any modification of within spirit of the present invention and principle, being done, be equal to replacement and improvement etc., all should be included within the claim protection domain of the present invention.
Claims (9)
1. a circular cooler trolley backbar is used for the support ring cold machine trolley, and said backbar comprises rectangular beam and is positioned at three cantilevered corner beams on the said rectangular beam;
The upper flange of said rectangular beam extends to both sides and widens the base plate as said three cantilevered corner beams; The upper flange of said rectangular beam extends widened section to both sides and is provided with air vent, with front side board and the back side panel of adjacent two side plates of the base plate of said three cantilevered corner beams as three cantilevered corner beams;
Forward and backward side plate comprises the side plate framework respectively and is installed in the grid section device on the said side plate framework;
It is characterized in that,
Said grid section device comprises many grid sections that are arranged in parallel, and the angle between said grid section and the said three cantilevered corner beam base plates equals the side plate framework at said grid section place and the angle between the said three cantilevered corner beam base plates;
The side plate framework and the said three cantilevered corner beam base plate angle β at said grid section place satisfy: 35 °＜β＜90 °.
2. circular cooler trolley backbar according to claim 1 is characterized in that, said side plate framework and said grid section device are installed through the transition gusset piece.
3. circular cooler trolley backbar according to claim 1 is characterized in that, the size that the gap between the adjacent said grid section on the plate framework of the same side is set according to circular cooler trolley upper strata comb plate is confirmed.
4. circular cooler trolley backbar according to claim 1 is characterized in that, is provided with first reinforcement between the side plate framework of forward and backward side plate; The side plate framework of said first reinforcement and said forward and backward side plate all offsets fixing.
5. circular cooler trolley backbar according to claim 4 is characterized in that, said first reinforcement is vertical with plane, said forward and backward side plate place respectively.
6. circular cooler trolley backbar according to claim 1; It is characterized in that; The side plate framework of said forward and backward side plate includes space bar, and the side plate framework space bar of the side plate framework space bar of said front side board and said back side panel all offsets affixed with first reinforcement.
7. according to the arbitrary described circular cooler trolley backbar of claim 4 to 6, it is characterized in that the side plate framework of said forward and backward side plate also comprises second reinforcement respectively, the vertical setting of grid section on said second reinforcement and this side plate framework.
8. circular cooler trolley backbar according to claim 7 is characterized in that the quantity of said second reinforcement is several, and is arranged in parallel.
9. circular cooler trolley backbar according to claim 7 is characterized in that, said first reinforcement and said second reinforcement fix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101712950A CN101825397B (en) | 2010-04-29 | 2010-04-29 | Bearing beam for circular cooler trolley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101712950A CN101825397B (en) | 2010-04-29 | 2010-04-29 | Bearing beam for circular cooler trolley |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101825397A CN101825397A (en) | 2010-09-08 |
| CN101825397B true CN101825397B (en) | 2012-05-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101712950A Active CN101825397B (en) | 2010-04-29 | 2010-04-29 | Bearing beam for circular cooler trolley |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936665A (en) * | 2010-09-20 | 2011-01-05 | 中冶长天国际工程有限责任公司 | Supporting beam of circular cooler trolley |
| CN102494541A (en) * | 2011-12-27 | 2012-06-13 | 中冶长天国际工程有限责任公司 | Annular cooler and bearing beam thereof |
| CN102808948B (en) * | 2012-08-15 | 2015-06-17 | 高彦 | Sealing device for enclosing gap between material delivering trolley crossbeam and trolley groove |
| CN103471399B (en) * | 2013-09-26 | 2015-03-11 | 中冶长天国际工程有限责任公司 | Annular cooler and trolley supporting beam thereof |
| CN109373770A (en) * | 2018-11-14 | 2019-02-22 | 上海名流电气有限公司 | The four-axle linked sealing device of ring cold machine triangular beam |
| CN111735313A (en) * | 2020-06-30 | 2020-10-02 | 中冶华天工程技术有限公司 | Novel sealing device of water sealing ring cooler |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1751760A1 (en) * | 1968-07-24 | 1971-08-05 | Knaust Herbert Dr Ing | Rotatable pressure cooler for hot bulk goods |
| DE3318679A1 (en) * | 1983-05-21 | 1984-11-22 | Metallgesellschaft Ag, 6000 Frankfurt | RING-SHAPED MACHINE FOR CONTACTING SOLIDS AND GASES |
| CN2415330Y (en) * | 2000-04-18 | 2001-01-17 | 冶金工业部长沙冶金设计研究院 | Blast circular cooling machine |
| US7093457B2 (en) * | 2004-01-23 | 2006-08-22 | Metso Minerals Industries, Inc. | Annular cooler pallet construction |
| CN101118121B (en) * | 2007-09-03 | 2010-05-19 | 中冶长天国际工程有限责任公司 | Supporting beam structure used for ring cold machine trolley |
| CN100567868C (en) * | 2007-09-03 | 2009-12-09 | 中冶长天国际工程有限责任公司 | A kind of improved rotary forced-air cooler |
| CN101482370B (en) * | 2009-02-10 | 2011-02-09 | 中冶长天国际工程有限责任公司 | Supporting beam used for ring cooling machine trolley |
| CN101619931B (en) * | 2009-08-06 | 2011-12-28 | 中冶长天国际工程有限责任公司 | Annular refrigerator trolley grating plate |
-
2010
- 2010-04-29 CN CN2010101712950A patent/CN101825397B/en active Active
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| CN101825397A (en) | 2010-09-08 |
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