CN102363822B - Double-cylinder yoke bell-less distributor for blast furnace - Google Patents
Double-cylinder yoke bell-less distributor for blast furnace Download PDFInfo
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- CN102363822B CN102363822B CN201110356910.XA CN201110356910A CN102363822B CN 102363822 B CN102363822 B CN 102363822B CN 201110356910 A CN201110356910 A CN 201110356910A CN 102363822 B CN102363822 B CN 102363822B
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Abstract
The invention discloses a double-cylinder yoke bell-less distributor for a blast furnace. The double-cylinder yoke bell-less distributing device comprises a distributor box body, a top cover, a water cooling disc, an upper rotation bearing, a rotary sleeve, a backing ring, a lower rotation bearing, a trunnion, a trunnion crank, a chute bracket, a chute, a throat pipe and a horizontal transmission device for controlling a beta angle of the chute. In the key improvement, the double-cylinder yoke bell-less distributor also comprises a backing ring driving mechanism; and the backing ring driving mechanism comprises a rigid driving arm, a rigid balance arm and a driving device for driving the rigid driving arm and the rigid balance arm to move up and down. The double-cylinder yoke bell-less distributor has the advantages that: due to the application of the two rigid yokes, the backing ring can be prevented from being tilted easily in all directions in the running process effectively, the mechanical linkage of two hydraulic cylinders is realized by utilizing the rigid yokes, and when abnormal conditions such as asynchronism and the like in the two hydraulic cylinders occur, the rigid yokes can protect the safety of the backing ring and downstream parts of the backing ring effectively under the allowable maximum load.
Description
Technical field
The present invention relates to a kind of blast furnace support equipment, particularly a kind of Double-cylinder yoke blast furnace bellless distributor.
Background technology
Blast-furnace channel distributor is the key equipment that blast furnace adds charging, because it has the flexible and uniform feature of cloth, obtain application widely, and the motion stable flexibly of chute be channel distributor can flexibly and the key of uniform distribution, the position of general chute is controlled by its α angle relative to distributor axis and β angle, α angle is the angle between chute and distributor axis, in order to reach the uniform object of cloth, in cloth process, chute needs the motion carrying out both direction, a kind of motion is the swing of the angle changed between itself and distributor casing axis, object is the α angle changing chute, another is the circumferential motion driving chute to produce around distributor axis by means of drive unit, object is the β angle changing chute, the α angle of chute is generally realized by lifting backing ring, because backing ring diameter is larger, in normal use procedure, the suffered power from chute of backing ring is partial load, stress point around the β angle synchronous rotary of its axis with chute, so the control of backing ring hoisting appliance kinematic accuracy is the key factor directly affecting chute α angular accuracy, also be the key factor affecting backing ring work-ing life, the backing ring lifting mechanism adopted at present mainly contains following several,
1) rope hoisting type
Its primary structure promotes backing ring by steel cable, only with unidirectional reinforcing, and the descending dependence self gravitation of backing ring, reliability is low; Backing ring location relies on the many groups roller set on its outer ring and the guide rail be arranged on distributor cabinet wall to realize, the vertically disposed roller of at least two covers is comprised owing to often organizing roller set, adjustment is complicated, also not easily ensure that the geometric centre of lower swing bearing overlaps with rotation center, during operation, backing ring rocks obviously, backing ring is shorter for work-ing life, and reliability is low, directly affects blast fumance stability.
2) single armed double link control type
This mechanism controls the lifting of backing ring by single armed double link, two-way reinforcing can be realized, but transmission chain is longer, during operation, towing loop has lateral component to produce, and the same many groups roller set on its outer ring and the guide rail be arranged on distributor cabinet wall of relying in backing ring location realizes; The two groups of rollers remained by vertically arranging owing to often organizing roller set form, adjustment difficulty, and lateral component when running makes backing ring geometric centre not easily overlap with the rotation center of lower rotating bearing, and produce eccentric, backing ring rocks obviously.
3) both arms double leval jib control type
This mechanism adopts two groups of holohedry four link type α angle driving mechanisms, there is mechanical interlock, synchronous driving, radial component suffered by towing loop such as can to offset completely at a series of outstanding advantages, overcome the radial component that one group of double-connecting rod type α angle driving mechanism brings to lower rotating bearing and backing ring thereof, the location of lower rotating bearing and backing ring thereof is made up of jointly double leval jib and one group of guide wheel and guide rail, guide wheel is few, adjustment easily, but the transmission chain driven due to α angle is oversize, progressive error is wayward, when causing distributor to run, backing ring rocks still obvious, reliability decrease.
4) three hydro-cylinder coordinated signals types
The maximum problem of this mechanism be three hydro-cylinders be synchronously not easy realize, complex structure, trouble spot is more, once asynchronous interlock appears in three hydro-cylinders, to the infringement of distributor unrepairable often.
5) Luxembourg PW type
The α angle driving mechanism of Luxembourg PW type furnace top distributing gear is made up of a pair open gear pair and a pair worm couple, compact construction, stable performance, but it is very high to the requirement of material and complete processing thereof, the expense of spare part and maintenance is also extremely high, belong to the device type that better performances price is high, cost performance is not high, not easily promotes.
Summary of the invention
Technical problem to be solved by this invention is to provide that transmission chain is short, structure is simple, low cost of manufacture and without the backing ring lifting mechanism of lateral component, improve the Double-cylinder yoke blast furnace bellless distributor of its work-ing life and stability.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of Double-cylinder yoke blast furnace bellless distributor, comprises distributor casing, top cover, aqueous cold plate, upper rotary supporting, turnbarrel, backing ring, lower rotating bearing, gudgeon, gudgeon crank, chute bracket, chute, trunnion and the horizontal conveyor device for controlling chute β angle; Described backing ring bottom is connected with the fixed ring of described lower rotating bearing; Described chute bracket both sides are hinged by means of two gudgeons with described turnbarrel lower end respectively; Described two gudgeons are each passed through turnbarrel and arrange and be provided with chute α angle topworks between the rotation circle of lateral ends and lower rotating bearing; Guiding mechanism is provided with outside described backing ring and between distributor casing; Its key improvements is: also comprise backing ring driving mechanism, and described backing ring driving mechanism comprises rigidity actuating arm and rigid balancing arm and drive unit;
Rigidity actuating arm and rigid balancing arm are arranged in right-angled intersection in the horizontal direction; Described rigidity actuating arm is equipped with chute with rigid balancing arm tail end and chute is connected with the horizontal supporting shaft be fixedly located on described distributor wall box respectively; Described rigidity actuating arm and rigid balancing arm head end hinged with backing ring respectively; Be provided with guiding mechanism outside backing ring, its guide deflection sheave assembly is fixedly connected with backing ring by guide wheel shaft.
Described drive unit is hydro-cylinder, described hydro-cylinder to be vertically fixed on described distributor top cover of box and its stretch into piston rod end in distributor casing by piston rod attachment and described backing ring hinged in the vertical plane residing for guide wheel shaft axial line.
Described backing ring is hinged with yoke front portion, described rigidity actuating arm both sides in the vertical plane residing for guide wheel shaft axial line.
Described hydro-cylinder is two covers, its cylinder body head end is all fixedly connected with described distributor top cover of box, the piston rod that two cover hydro-cylinders are corresponding all stretches in distributor casing, described piston rod is hinged with yoke front portion, described rigidity actuating arm both sides respectively by piston rod attachment, and its hinge and described and that vertical guide is supporting guide deflection sheave are coaxially arranged.
Described guiding mechanism comprise hoop be distributed in more than four vertical guide on described distributor cabinet wall and hoop be distributed in outside described backing ring be equipped with vertical guide four overlap above guide deflection sheave assembly.
Described guide deflection sheave assembly vertically arrange at least one group with the guide deflection sheave of the supporting setting of described vertical guide; Described rigidity actuating arm and rigid balancing arm head end both sides overlap the guide deflection sheave being positioned at top in guide deflection sheave assembly respectively with relative two coaxially hinged.
Described drive unit is hydro-cylinder, described hydro-cylinder to be vertically fixed on described distributor top cover of box and its stretch into piston rod end in distributor casing by piston rod attachment and described backing ring hinged.
Described chute α angle topworks comprises two cover gudgeon cranks and special-shaped connecting rod; Described two cover gudgeon cranks are positioned at turnbarrel outboard end with two gudgeons respectively and are fixedly connected with; Described special-shaped connecting rod lower end overlaps that the tail end of gudgeon crank is hinged respectively with described two, upper end and be fixed on lower rotating bearing rotate the left engaging lug that encloses and right engaging lug hinged respectively.
Described chute α angle topworks comprises two cover gudgeon cranks, is located at the crank tail wheel of gudgeon crank tail end and is symmetrically set in two cover chutes on described lower rotating bearing rotation circle; Described crank tail wheel and described two overlaps that chute is chimeric to be arranged.
The beneficial effect that produces of technique scheme is adopted to be: backing ring driving mechanism used in the present invention is primarily of the rigidity yoke of two similar H-shaped of profile or Y shape and coupled backing ring and support ring guide mechanism composition thereof.Two rigidity yokes are cross-shaped layout, effectively can prevent the phenomenon of fascinating that backing ring in horizontal plane, any direction all likely produces like this, the head end both sides fork of each rigidity yoke is hinged with the wheel shaft of the two groups of relative guide deflection sheave assemblies being distributed in backing ring circumferential direction fourth class office respectively, thereafter fork is divided, and is connected respectively with the horizontal supporting shaft be distributed on distributor sidewall, allows its point of suppon to have certain transverse shifting space; Due to rigidity actuating arm is considered as rigid body, and motivating force and load reactive force are positioned at same vertical plane, so can not radial component be produced in driving process, the effect being the rigid balancing arm that right-angled intersection is arranged with rigidity actuating arm is to keep backing ring the fascinating of two other direction in moving process, two cover H-shaped yokes can effectively prevent backing ring from fascinating, so the guide deflection sheave assembly in guiding mechanism can be set to one group of guide wheel, only play the guiding role; Its advantage is mainly reflected in the following aspects:
1, the twin-tub of mechanical chain is with to drive and without the backing ring lifting mechanism of lateral component, have the advantages such as transmission chain is short, progressive error is little, stability is high, long service life;
2, two rigidity yokes are articulated as one by four guide wheel shafts and backing ring, two hydro-cylinders drive the symmetrical both sides guide wheel shaft of rigidity yoke and backing ring center respectively simultaneously, thus the two point symmetries liftings completed backing ring, the phenomenon of fascinating of all directions that simultaneously just can effectively prevent backing ring from very easily producing in operational process under the cooperation of rigid balancing arm, the stability of backing ring can significantly improve;
3, two hydro-cylinders realize mechanical chain by rigidity yoke, and when the abnormal conditions such as asynchronous appear in two hydro-cylinders, under the ultimate load allowed, (rigidity yoke) can the safety of available protecting backing ring and downstream component thereof.
Accompanying drawing explanation
Fig. 1 is the full sectional view of front view of the present invention;
Fig. 2 is vertical view of the present invention;
Fig. 3 is the A-A direction view of Fig. 1;
Fig. 4 is the full sectional view of left view of the present invention;
Fig. 5 is the front view (partial cutaway) of rigidity actuating arm;
Fig. 6 is the vertical view of rigidity actuating arm;
Fig. 7 is the front view (partial cutaway) of rigid balancing arm;
Fig. 8 is the vertical view of rigid balancing arm.
In the accompanying drawings: 1, chute; 2, lip ring; 3, aqueous cold plate; 4, distributor casing; 5, airtight case lid; 6, turnbarrel; 7, lower rotating bearing; 8, backing ring; 9, top cover; 10, upper rotary supporting; 11, hydro-cylinder bearing; 12, hydro-cylinder; 13, trunnion; 14, rigid balancing arm; 15, special-shaped connecting rod; 16, guide deflection sheave; 17, horizontal conveyor device; 18, cycloidal planetary gear speed reducer; 19, gudgeon; 20, chute bracket; 21, rigidity actuating arm; 22, oil bearing; 23, gudgeon crank; 24, support set; 25, bolster; 26, supporting box; 27, left engaging lug; 28, right engaging lug; 29, guide rail.
Embodiment
A kind of Double-cylinder yoke blast furnace bellless distributor as shown in Fig. 1 to 8, comprises distributor casing 4, top cover 9, aqueous cold plate 3, upper rotary supporting 10, turnbarrel 6, backing ring 8, lower rotating bearing 7, gudgeon 19, gudgeon crank 23, chute bracket 20, chute 1, trunnion 13 and the horizontal conveyor device 17 for controlling chute β angle, aqueous cold plate is fixed on distributor lower box, and the outer ring of upper rotary supporting is fixedly connected with turnbarrel, and the medullary ray of turnbarrel overlaps with the medullary ray of blast furnace, described backing ring 8 bottom is fixedly connected with the outer ring of described lower rotating bearing, turnbarrel bottom is arranged with gudgeon cover, and wear two gudgeons in gudgeon cover, two gudgeons are symmetrical, the two ends that described chute bracket 20 both sides are positioned at turnbarrel with two gudgeons are respectively fixedly connected with, and chute is hung on chute bracket, turnbarrel arranged outside chute α angle topworks, its both sides connect respectively at described two gudgeon tail ends, the chute α angle topworks used in the present invention comprises two cover gudgeon crank 23 and special-shaped connecting rods 15, described two cover gudgeon cranks 23 are positioned at turnbarrel 6 lateral ends with two gudgeons respectively and are fixedly connected with, both sides, described special-shaped connecting rod 15 lower end overlap gudgeon crank 23 tail end respectively with described two hinged, and both sides, upper end are distinguished hinged with the left engaging lug 27 be fixed on lower rotating bearing 7 inner ring and right engaging lug 28, the structure that chute α angle topworks can also adopt crank tail wheel and chute to match, its detailed construction can be 200510084403.X see the patent No., and patent name is the patent of " blast-furnace channel distributor ", guiding mechanism is provided with outside described backing ring 8 and between distributor casing 4 inwall, said guiding mechanism not traditional guiding mechanism in prior art, it mainly contains two effects, effect to move up and down guiding for backing ring, another one effect adopts upper and lower double guide wheel, in linear motion, axial fascinating is produced for putting only backing ring, but its adjustment process is more loaded down with trivial details, only utilize its guide effect in the present invention, so the guiding mechanism in the present invention comprise hoop be distributed in four vertical chutes on described distributor casing 4 inwall and hoop be distributed in outside described backing ring be equipped with four vertical chutes four overlap guide deflection sheave assembly, described guide deflection sheave assembly vertically arranges one group of guide deflection sheave 16.
Key improvements of the present invention is backing ring driving mechanism, existing backing ring driving mechanism mainly comprises steel wire cord type, single armed double link control type, both arms double leval jib control type and three cylinder coordinated signals types, but in use all there is different problems to occur, for improving distributor operation stability, the backing ring driving mechanism in the present invention comprises a set of hydro-cylinder 12, rigidity actuating arm 21 and rigid balancing arm 14 be vertically fixedly located on described distributor box cover.
Described rigidity actuating arm 21 and rigid balancing arm 14 are H-shaped yoke (see Fig. 5-8), and rigidity actuating arm 21 and rigid balancing arm 14 are arranged in right-angled intersection in the horizontal direction; Described rigidity actuating arm 21 is equipped with chute with rigid balancing arm 14 tail end and chute is connected with the horizontal supporting shaft 25 be fixed on described distributor wall box respectively; Chute can be closed, also can be open, and can also be connected with horizontal supporting shaft with the swing-bar mechanism that fork is hinged with rigid balancing arm end by means of by rigidity actuating arm, object makes its point of suppon allow certain transversal displacement simultaneously; Described rigidity actuating arm 21 and rigid balancing arm 14 head end are hinged with the guide deflection sheave assembly be located at outside backing ring 8 respectively; Rigidity actuating arm and rigid balancing arm head end can also distinguish direct and backing ring is hinged, now backing ring, rigidity actuating arm and rigid balancing arm is looked as a whole towing loop translation device; Described two cover hydro-cylinders 12 to be all vertically fixed on described distributor top cover of box 9 and its stretch into piston rod end in distributor casing respectively with described backing ring 8 and rigidity actuating arm 21 hinged; The Main Function of rigidity actuating arm and rigid balancing arm prevents backing ring from fascinating in the process of moving up and down, two cover rigidity yokes can be treated as anti-tilting mechanism in actual application, can apply it in existing distributor, by itself and other structure fabric glasswares such as existing single armed double-connecting rod type or both arms double leval jib type with the use of, eliminate the phenomenon of fascinating in backing ring moving process; Say from motivating force; single cover hydro-cylinder can meet the demand that backing ring moves up and down completely; although the complete equipilibrium of power and backing ring load can be guaranteed after using two cover hydro-cylinders; but in actual application, need two cover hydraulic cylinder synchronous on the one hand; simultaneously; if when a set of hydro-cylinder breaks down; rigidity actuating arm can form mechanical lock; when the abnormal conditions such as asynchronous appear in two hydro-cylinders, under the ultimate load allowed, rigidity yoke can the safety of available protecting backing ring and downstream component thereof.
Backing ring driving mechanism used in the present invention is primarily of the rigidity yoke of two similar H-shaped of profile and coupled backing ring and support ring guide mechanism composition thereof.Two H-shaped rigidity yokes are cross-shaped layout, effectively can prevent the phenomenon of fascinating that backing ring in horizontal plane, any direction all likely produces like this, the head end both sides fork of each H-shaped rigidity yoke is hinged with the wheel shaft of the two groups of relative guide deflection sheave assemblies being distributed in backing ring circumferential direction fourth class office respectively, thereafter fork is divided, and is connected respectively with the horizontal supporting shaft be distributed on distributor sidewall, allows its point of suppon to have certain mobile space, in embody rule process, use two cover hydro-cylinders as the power set of backing ring driving mechanism simultaneously, the end that the piston rod end of hydro-cylinder and rigidity actuating arm head end both sides are pitched is hinged, the wheel shaft of jointed shaft and guide deflection sheave is coaxially arranged, guarantee that motivating force and load reactive force are positioned at same vertical plane, due to rigidity actuating arm and rigid balancing arm are considered as rigid body, and motivating force and load reactive force are positioned at same vertical plane, so backing ring can not produce radial component in driving process, the effect being the rigid balancing arm that right-angled intersection is arranged with rigidity actuating arm is to prevent backing ring the fascinating of two other direction in moving process, so the guide deflection sheave assembly in guiding mechanism can be set to one group of guide wheel, only play the guiding role, simplify running gear.
Claims (6)
1.
?a kind of Double-cylinder yoke blast furnace bellless distributor, comprises distributor casing (4), top cover (9), aqueous cold plate (3), upper rotary supporting (10), turnbarrel (6), backing ring (8), lower rotating bearing (7), gudgeon (19), gudgeon crank (23), chute bracket (20), chute (1), trunnion (13) and the horizontal conveyor device (17) for controlling chute β angle; Described backing ring (8) bottom is connected with the fixed ring of described lower rotating bearing; Described chute bracket (20) both sides are hinged by means of two gudgeons with described turnbarrel (6) lower end respectively; Described two gudgeons are each passed through turnbarrel and arrange and be provided with chute α angle topworks between the rotation circle of lateral ends and lower rotating bearing; Guiding mechanism is provided with between described backing ring (8) outside and distributor casing (4); It is characterized in that: also comprise backing ring driving mechanism, described backing ring driving mechanism comprises rigidity actuating arm (21) and rigid balancing arm (14) and drive unit;
Rigidity actuating arm (21) and rigid balancing arm (14) are arranged in right-angled intersection in the horizontal direction; Described rigidity actuating arm (21) is equipped with chute with rigid balancing arm (14) tail end and chute is connected with the horizontal supporting shaft (25) be fixedly located on described distributor wall box respectively; Described rigidity actuating arm (21) and rigid balancing arm (14) head end are hinged with backing ring (8) respectively; Backing ring (8) outside is provided with guiding mechanism, and its guide deflection sheave assembly is fixedly connected with backing ring (8) by guide wheel shaft;
Described guiding mechanism comprise hoop be distributed in more than four vertical guide on described distributor casing (4) inwall and hoop be distributed in outside described backing ring be equipped with vertical guide four overlap above guide deflection sheave assembly;
Described guide deflection sheave assembly vertically arrange at least one group with the guide deflection sheave (16) of the supporting setting of described vertical guide; Described rigidity actuating arm (21) and rigid balancing arm (14) head end both sides overlap the guide deflection sheave (16) being positioned at top in guide deflection sheave assembly respectively with relative two coaxially hinged.
2. Double-cylinder yoke blast furnace bellless distributor according to claim 1, it is characterized in that: described drive unit is hydro-cylinder, described hydro-cylinder (12) be vertically fixed at described distributor top cover of box (9) upper and its stretch into piston rod end in distributor casing by piston rod attachment and described backing ring (8) hinged in the vertical plane residing for guide wheel shaft axial line.
3. Double-cylinder yoke blast furnace bellless distributor according to claim 2, is characterized in that: described backing ring (8) is hinged with yoke front portion, described rigidity actuating arm (21) both sides in the vertical plane residing for guide wheel shaft axial line.
4. Double-cylinder yoke blast furnace bellless distributor according to claim 2, it is characterized in that: described hydro-cylinder is two covers, its cylinder body head end is all fixedly connected with described distributor top cover of box, the piston rod that two cover hydro-cylinders are corresponding all stretches in distributor casing (4), described piston rod is hinged with yoke front portion, described rigidity actuating arm (21) both sides respectively by piston rod attachment, and its hinge and the supporting guide deflection sheave of described vertical guide are coaxially arranged.
5. Double-cylinder yoke blast furnace bellless distributor according to claim 1, it is characterized in that: described drive unit is hydro-cylinder, described hydro-cylinder (12) be vertically fixed at described distributor top cover of box (9) upper and its stretch into piston rod end in distributor casing by piston rod attachment and described backing ring (8) hinged.
6. according to the Double-cylinder yoke blast furnace bellless distributor described in claim 1,2,3 or 5, it is characterized in that: described chute α angle topworks comprises two cover gudgeon cranks (23) and special-shaped connecting rod (15); Described two covers gudgeon crank (23) are positioned at turnbarrel (6) outboard end with two gudgeons respectively and are fixedly connected with; Described special-shaped connecting rod (15) lower end overlaps gudgeon crank (23) respectively tail end with described two is hinged, upper end and be fixed on lower rotating bearing (7) and rotate the left engaging lug (27) that encloses and right engaging lug (28) is hinged respectively;
ordescribed chute α angle topworks comprises two cover gudgeon cranks, is located at the crank tail wheel of gudgeon crank tail end and is symmetrically set in two cover chutes on described lower rotating bearing rotation circle; Described crank tail wheel and described two overlaps that chute is chimeric to be arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110356910.XA CN102363822B (en) | 2011-11-11 | 2011-11-11 | Double-cylinder yoke bell-less distributor for blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110356910.XA CN102363822B (en) | 2011-11-11 | 2011-11-11 | Double-cylinder yoke bell-less distributor for blast furnace |
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| Publication Number | Publication Date |
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| CN102363822A CN102363822A (en) | 2012-02-29 |
| CN102363822B true CN102363822B (en) | 2014-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110356910.XA Active - Reinstated CN102363822B (en) | 2011-11-11 | 2011-11-11 | Double-cylinder yoke bell-less distributor for blast furnace |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102827976B (en) * | 2012-09-08 | 2014-12-17 | 蔡乐松 | Blast furnace bell-less material distributor |
| CN102827975B (en) * | 2012-09-08 | 2015-01-21 | 蔡乐松 | Bell-less distributor on top of blast furnace |
| CN102827982B (en) * | 2012-09-08 | 2014-11-26 | 河北科技大学 | Chute alpha angle tilting mechanism of blast furnace bell-less distributor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1173543A (en) * | 1997-06-13 | 1998-02-18 | 僧全松 | Blast furnace top sluice feed distributing device driven by wirerope |
| CN2595816Y (en) * | 2003-01-17 | 2003-12-31 | 石家庄三环阀门股份有限公司 | Support ring guide mechanism for blast furnace top chute distributing device |
| CN1641049A (en) * | 2004-01-18 | 2005-07-20 | 石家庄三环阀门股份有限公司 | Dual-lever four-hanging-point synchronous-driven blast furnace top down spouting distributing device |
| CN101285109A (en) * | 2008-06-11 | 2008-10-15 | 中冶南方工程技术有限公司 | Four-point suspended converter connecting apparatus |
| CN202543232U (en) * | 2011-11-11 | 2012-11-21 | 李玉清 | Double-cylinder yoke type bell-free blast furnace charge distributor |
-
2011
- 2011-11-11 CN CN201110356910.XA patent/CN102363822B/en active Active - Reinstated
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1173543A (en) * | 1997-06-13 | 1998-02-18 | 僧全松 | Blast furnace top sluice feed distributing device driven by wirerope |
| CN2595816Y (en) * | 2003-01-17 | 2003-12-31 | 石家庄三环阀门股份有限公司 | Support ring guide mechanism for blast furnace top chute distributing device |
| CN1641049A (en) * | 2004-01-18 | 2005-07-20 | 石家庄三环阀门股份有限公司 | Dual-lever four-hanging-point synchronous-driven blast furnace top down spouting distributing device |
| CN101285109A (en) * | 2008-06-11 | 2008-10-15 | 中冶南方工程技术有限公司 | Four-point suspended converter connecting apparatus |
| CN202543232U (en) * | 2011-11-11 | 2012-11-21 | 李玉清 | Double-cylinder yoke type bell-free blast furnace charge distributor |
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| CN102363822A (en) | 2012-02-29 |
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