CN210048796U - Automatic dismounting device for large-scale blast furnace tuyere middle sleeve - Google Patents
Automatic dismounting device for large-scale blast furnace tuyere middle sleeve Download PDFInfo
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- CN210048796U CN210048796U CN201920826947.6U CN201920826947U CN210048796U CN 210048796 U CN210048796 U CN 210048796U CN 201920826947 U CN201920826947 U CN 201920826947U CN 210048796 U CN210048796 U CN 210048796U
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Abstract
The utility model discloses an automatic dismounting device for a large-scale blast furnace tuyere middle sleeve, which comprises a frame, a back-pull device, a connecting device and a reverse beating device; the rear pulling devices are arranged on two sides of the rack and used for providing reverse static pulling force when the tuyere middle sleeve is detached; the connecting device is arranged in the middle of the rack, is arranged at the same side of the rear pulling device and is used for connecting the rack and the counterbeating device; the reverse beating device is arranged at the front end of the connecting device, and the front end of the reverse beating device is provided with a reverse beating part used for providing reverse dynamic beating force when the tuyere middle sleeve is detached. Cover automatic dismounting device in large-scale blast furnace tuyere, its novel structure, reasonable in design, it is small, light in weight, with low costs, the operation of being convenient for can effectively reduce intensity and time when cover is dismantled in the large-scale blast furnace tuyere, reduces the operation intensity, reduces the cost of labor to operation personnel's security when improving and demolish.
Description
Technical Field
The utility model belongs to the technical field of blast furnace maintenance equipment, in particular to automatic dismounting device of cover in large-scale blast furnace tuyere.
Background
With the continuous development of the steel industry, iron-making blast furnaces for smelting steel are particularly important. At present, the iron-making blast furnace of iron and steel enterprises in China is generally fixed and repaired once in three months on average, if the number of the blast furnaces is large, the iron-making blast furnace fixed and repaired can be fixed and repaired two or thirty times all the year round, and the number of the tuyere middle sleeves is changed on average in each fixed and repaired time, so that dozens of people are required to carry out operation in 2-3 shifts.
At present, the mode of dismantling wind gap well cover generally adopts the mode of manual dismantlement, and the cover is demolishd in the manual striking of slide hammer promptly, and the drawback of this kind of dismantlement mode is: 1) more operators are needed; 2) the sliding hammer is easy to damage fingers of operators if the sliding hammer is not operated properly, and certain potential safety hazards exist; 3) if some middle sleeves are seriously deformed and cannot be knocked down by a sliding hammer, the middle sleeves need to be destructively dismantled by an oxygen lance, and the dismantling time is prolonged; 4) the temperature of the tuyere area in the front of the furnace is high, the operation area is small, the number of operators is large, the environment is poor, and the labor intensity of the operators is very high.
SUMMERY OF THE UTILITY MODEL
To the numerous drawbacks of utilizing the manual dismantlement wind gap middle cover of smooth hammer among the background art, the utility model provides an automatic dismounting device of cover in large-scale blast furnace wind gap can effectively reduce intensity and time when the cover is dismantled in the large-scale blast furnace wind gap to operating personnel's security when improving and demolish.
The utility model provides a technical problem's technical scheme as follows:
the utility model relates to an automatic dismounting device for a large-scale blast furnace tuyere middle sleeve, which comprises a frame, a back-pull device, a connecting device and a counterattack device; the rear pulling device comprises two hydraulic oil cylinders which are respectively arranged on two sides of the frame; the connecting device is arranged in the middle of the rack and is arranged at the same side as the rear pulling device; the counterbeating device comprises a tensioning oil cylinder arranged at the front end of the connecting device, and a positioning spacer bush is arranged at the front end of the tensioning oil cylinder; the outer side of the rear part of the positioning spacer bush is provided with a swinging device, the front end of the swinging device is provided with a positioning rack, and the front side of the swinging device is provided with a positioning disc; the positioning machine frame comprises a disc-shaped front positioning machine frame and a disc-shaped rear positioning machine frame, the rear positioning machine frame is fixed at the front end of the positioning spacer sleeve, and the front positioning machine frame is fixed on the front side of the rear positioning machine frame; at least 2 mounting grooves are radially and symmetrically arranged on the inner side of the front positioning rack, and a drawing pin with a circular arc-shaped rear end and a length slightly larger than the length of each mounting groove is arranged in each mounting groove; the front end inside the tensioning oil cylinder is provided with a front tensioning pull rod shaft; the front tension pull rod shaft penetrates through the positioning spacer bush and the positioning rack, an annular groove matched with the rear end of the drawing pin is formed in the front of the front tension pull rod shaft, and a reverse beating portion is formed in the front end of the front tension pull rod shaft.
As a further improvement of the technical scheme, the outer side and the inner side of the front end of the drawing pin are respectively provided with an inward inclined surface and an arc surface.
As a further improvement of the technical scheme, the left side and the right side of the rack are respectively provided with a first fixing hole, a pin shaft is installed in each first fixing hole, a spacer bush is installed on the outer side of each pin shaft, and each hydraulic oil cylinder is movably connected with one spacer bush.
As a further improvement of the technical scheme, the swinging device comprises a swinging disc, copper sleeves are arranged on two sides of the swinging disc, a swinging seat is arranged on each copper sleeve, and the positioning disc is fixedly connected with the swinging seat.
As a further improvement of the technical scheme, the connecting device comprises a back-pull beating rack and two connecting seats; two sides of the back-pull beating rack are respectively provided with a first through groove; the section of each connecting seat is in a convex shape, and the convex part of each connecting seat penetrates out of one first through groove and is connected and fixed with the rack; the back-pull striking machine frame and the two connecting seats are fixedly connected through a plurality of connecting components.
As a further improvement of the technical scheme, the front end of the back-pull beating rack is provided with a through hole, the back wall of the front end of the back-pull beating rack is provided with a front connector and a back connector, and the tensioning oil cylinder is arranged on the front connector and the back connector.
As a further improvement of the technical scheme, the middle part of the rack is provided with two second fixing holes, a pin shaft is arranged in each second fixing hole, a spacer bush is arranged on the outer side of each pin shaft, and the two spacer bushes are respectively connected and fixed with the convex part of one connecting seat.
As a further improvement of the technical scheme, a second through groove is formed in the positioning spacer sleeve, a groove is formed in the front tensioning pull rod shaft, and a spring positioning pin is mounted on the front tensioning pull rod shaft and penetrates out of the second through groove; and a compression spring is arranged outside the positioning spacer bush, and two ends of the compression spring are respectively in close contact with the swinging device and the spring positioning pin.
As a further improvement of the technical scheme, the drawing pin is provided with a limiting hole, a positioning hole is respectively arranged at the position, corresponding to the mounting groove, of the front positioning frame, and a limiting screw is arranged on the front positioning frame and extends into the limiting hole.
The automatic dismounting device for the large-scale blast furnace tuyere middle sleeve is manufactured in advance according to the specification of the blast furnace tuyere, during manufacturing, the diameter of the positioning disc is ensured to be inserted between the diameter of a large opening and the diameter of a small opening of the tuyere middle sleeve, and the diameters of the front positioning frame and the rear positioning frame are smaller than the diameter of the small opening of the tuyere middle sleeve; when the device is applied, the belly pipe and the tuyere small sleeve are firstly removed, then the front end of the device for automatically removing the tuyere middle sleeve of the large-scale blast furnace sequentially extends into the tuyere middle sleeve from the tuyere large sleeve through a forklift and other tools, after the front positioning frame and the rear positioning frame extend out from the small opening of the tuyere middle sleeve and the positioning disc is clamped and positioned in the tuyere middle sleeve, the tensioning oil cylinder is controlled to drive the front tensioning pull rod shaft to retract, the circular groove of the front tensioning pull rod shaft extrudes the circular arc rear ends of the pulling pins to move forwards in the retracting process, so that the front ends of the pulling pins extend out from the mounting groove of the front positioning frame, then two hydraulic oil cylinders on the frame are aligned with the shell of the tuyere large sleeve and apply thrust, thereby generating reverse tension to act on the frame, further driving the connecting device and the reverse driving device to retract, and the pulling pins just hook the outer edge of the small opening of the middle sleeve in the retracting process, an outward pulling force is generated on the tuyere middle sleeve, and meanwhile, the tensioning oil cylinder drives the front tensioning pull rod shaft to retract and extend rapidly in a circulating mode, so that the reverse beating part of the tensioning oil cylinder continuously and reversely beats the front positioning rack, and the tuyere middle sleeve can be rapidly disassembled.
Compared with the prior art, the utility model has the advantages of
1) The device structure of the utility model has novel structure, reasonable design, small volume, light weight, low cost and convenient operation;
2) when the device of the utility model is applied, the number of operators is greatly reduced (not more than 6 persons) compared with the traditional technology, the operation intensity is reduced, and the labor cost is reduced;
3) when the device of the utility model is applied, the close-range operation of the operating personnel is not needed, and the safety is greatly improved;
4) when the device is applied, the static pulling force of the air port middle sleeve by the pulling device and the continuous dynamic reverse counterbeating force of the counterbeating device to the air port middle sleeve are utilized to form resultant force by arranging the pulling device and the counterbeating device, so that the air port middle sleeve can be rapidly and smoothly dismantled;
5) the front tension pull rod shaft is arranged to extrude the drawing pins in the retraction process, so that the drawing pins extend out of the mounting groove of the front positioning rack to form a thorn structure, the outer edge of the tuyere middle sleeve can be firmly locked, and a slip hook is prevented;
6) the device is suitable for the tuyere medium sleeves with different deformation degrees, and has strong practicability.
Drawings
The invention will be further explained with reference to the drawings and the detailed description below:
fig. 1 is a schematic structural diagram of the device of the present invention;
FIG. 2 is a schematic view of the cross-sectional structure of the device of the present invention when it is inserted into the tuyere large sleeve;
fig. 3 is a schematic perspective view of the device of the present invention;
fig. 4 is an exploded view of the structure of the device of the present invention;
FIG. 5 is a schematic structural view of the device of the present invention extending into the tuyere large sleeve and the tuyere medium sleeve (the pulling pin is not extended);
fig. 6 is a schematic structural view of the reverse beating device of the present invention when the drawing pin is not hooked with the tuyere medium sleeve;
FIG. 7 is a schematic structural view of the reverse beating device according to the present invention when the pulling pin hooks the tuyere medium sleeve;
in the figure: 1. the device comprises a rack, 11, a first fixing hole, 12, a pin shaft, 13, a spacer bush, 14, a second fixing hole, 2, a rear pulling device, 21, a hydraulic oil cylinder, 3, a connecting device, 31, a rear pulling striking rack, 311, a first through groove, 32, a connecting seat, 33, a connecting assembly, 34, a through hole, 4, a counterstriking device, 41, a tensioning oil cylinder, 42, a positioning spacer bush, 421, a second through groove, 43, a front tensioning pull rod shaft, 431, an annular groove, 432, a counterstriking part, 44, a front connector, 45, a swinging device, 451, a swinging disc, 452, a copper bush, 453, a swinging seat, 46, a positioning rack, 461, a rear positioning rack, 462, a front positioning rack, 4621, a mounting groove, 4622, a positioning hole, 4623, a limiting screw, 4624, an annular recess, 463, a pulling pin, 4631, a limiting hole, 47, 48, a spring positioning pin, 49, a compression spring, 5, a tuyere large sleeve, and a positioning device, 6. And a tuyere middle sleeve.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", and the like used in the specification and claims of the present disclosure are used only to indicate relative positional relationships, and when the absolute position of a described object is changed, the relative positional relationships are changed accordingly.
Example 1:
as shown in fig. 1 to 7, the utility model relates to an automatic dismounting device for a large-scale blast furnace tuyere middle sleeve, which comprises a frame 1, a rear pulling device 2, a connecting device 3 and a reverse beating device 4, wherein the rear pulling device 2 comprises two hydraulic cylinders 21 which are respectively and movably connected and arranged at two sides of the frame 1, the bearing capacity of the two hydraulic cylinders 21 is 50t, and the two hydraulic cylinders are used for abutting against the outer edge of a tuyere large sleeve 5 when the tuyere middle sleeve 6 is dismounted, so as to provide an outward reverse pulling force; the connecting device 3 is fixedly arranged in the middle of the rack 1, is arranged at the same side as the rear pulling device 2 and is used for connecting the rack 1 and the counterbeating device 4; the counterbeating device 4 comprises a tensioning oil cylinder 41 fixedly arranged at the front end of the connecting device 3, and a positioning spacer 42 is arranged at the front end of the tensioning oil cylinder 41; the outer side of the rear part of the positioning spacer 42 is provided with a swinging device 45, the front end of the positioning spacer is provided with a positioning frame 46, and the front side of the swinging device 45 is provided with a positioning disc 47 for automatically centering the tuyere middle sleeve 6 when the tuyere middle sleeve 6 is disassembled; the positioning frame 46 comprises a front positioning frame 462 and a rear positioning frame 461 which are disc-shaped, the rear positioning frame 461 is fixedly arranged at the front end of the positioning spacer 42, and the front positioning frame 462 is fixedly arranged at the front side of the rear positioning frame 461; at least 2 mounting grooves 4621, preferably 4 mounting grooves 4621, are radially and symmetrically formed in the inner side of the front positioning frame 462, a pulling pin 463 with a circular arc-shaped rear end and a length slightly greater than that of each mounting groove 4621 is arranged in each mounting groove 4621, and the difference between the length of the pulling pin 463 and the length of each mounting groove 4621 is controlled to be 10-20 mm; the front end inside the tensioning oil cylinder 41 is connected with a front tensioning pull rod shaft 43; the front tension pull rod shaft 43 penetrates through the positioning spacer 42 and the positioning frame 46, the front part of the front tension pull rod shaft is provided with an annular groove 431 matched with the rear end of the drawing pin 463, and the front end of the front tension pull rod shaft is provided with a reverse beating part 432.
The automatic dismounting device for the tuyere medium sleeve of the large-sized blast furnace is manufactured in advance according to the specification of the blast furnace tuyere, the diameter of the positioning disc 47 is ensured to be inserted between the diameter of a large opening and the diameter of a small opening of the tuyere medium sleeve 6, so that the device can be automatically centered in the tuyere medium sleeve 6 when being applied, the diameters of the front positioning rack 462 and the rear positioning rack 461 are slightly smaller than the diameter of the small opening of the tuyere medium sleeve 6 and are generally controlled within 10mm, and the front positioning rack 462 and the rear positioning rack 461 can penetrate out from the small opening of the tuyere medium sleeve 6; when the device is applied, the two hydraulic cylinders 21 and the tensioning cylinder 41 are connected to a hydraulic station, after the blast furnace is stopped, the belly pipe and the tuyere small sleeve are firstly removed, then the front end of the automatic dismounting device for the tuyere medium sleeve of the large-scale blast furnace, which is disclosed by the utility model, sequentially extends into the tuyere medium sleeve 6 from the tuyere large sleeve 5 through a forklift or other tools, after the front and rear positioning frames 462 and 461 extend out from the small opening of the tuyere medium sleeve 6 and the positioning disc 47 is clamped and automatically centered and positioned in the tuyere medium sleeve 6, the tensioning cylinder 41 is controlled to drive the front tensioning pull rod shaft 43 to retract, the annular groove 431 of the front tensioning pull rod shaft extrudes the arc-shaped rear ends of the pulling pins 463 to move forwards in the retracting process, so that the front ends of the four pulling pins 463 extend out from the mounting groove 4621 of the front positioning frame 462 to form a four-claw thorn structure, then the two hydraulic cylinders 21 on the frame 1 are aligned with the shell of the tuyere large sleeve 5 and thrust is applied, therefore, reverse pulling force is generated to act on the frame 1, the connecting device 3 and the reverse beating device 4 are driven to retract, a four-claw thorn structure formed by the pulling pins 463 in the retracting process is just firmly hooked on the outer edge of a small opening of the tuyere medium sleeve 6, an outward pulling force is generated for the tuyere medium sleeve 6, meanwhile, the front tensioning pull rod shaft 43 is driven to rapidly and circularly retract and extend through the tensioning oil cylinder 41, the reverse beating part 432 continuously and reversely beats the front positioning frame 462, and the tuyere medium sleeve is rapidly disassembled through the static and dynamic resultant force. In the application of the present embodiment, in order to improve the reverse beating effect of the reverse beating portion 432, an annular recess 4624 adapted to the reverse beating portion 432 may be further provided on the front side of the front positioning frame 462.
Example 2:
on the basis of embodiment 1, in this embodiment, an inward inclined surface is disposed on one side of the front end of the pulling pin 463, which is close to the outside, and an arc surface is disposed on one side of the front end of the pulling pin 463, so as to form a hook-shaped structure, when the four pulling pins 463 are all extended, a four-claw thorn structure is formed, so that the outer edge of the tuyere middle sleeve 6 can be firmly locked to prevent a slip hook, and meanwhile, an inward inclined surface is disposed on one side of the front end of the pulling pin 463, when the device moves to a small opening of the tuyere middle sleeve 6, if the pulling pin 463 is blocked, the device can retract into the mounting groove 4621 under the action of extrusion force, so that the positioning frame 46 can smoothly extend out the small opening of the tuyere middle sleeve 6.
In this embodiment, in order to facilitate the installation and connection between the hydraulic cylinders 21 and the rack 1, the left and right sides of the rack 1 are respectively provided with a first fixing hole 11, a pin 12 is installed in each first fixing hole 11, a spacer 13 is installed outside the pin 12, and each hydraulic cylinder 21 is respectively movably connected with one spacer 13.
In this embodiment, in order to facilitate the automatic centering of the device in the tuyere medium sleeve 5 by the positioning plate 47, the swinging device 45 comprises a swinging plate 451 which is installed at the rear outer side of the positioning spacer 42, copper sleeves 452 are arranged at both sides of the swinging plate 451, a swinging seat 453 is fixed to the outer side of the copper sleeves 452 by screws, and the positioning plate 47 is fixedly connected with the swinging seat 453 by screws.
Example 3:
on the basis of the embodiment 1 or 2, in order to provide support for the reverse pulling force and the reverse back beating generated by the device in the application process, the connecting device 3 comprises a back pulling beating rack 31 and two connecting seats 32; two sides of the back-pull striking rack 31 are respectively provided with a first through groove 311; the section of each connecting seat 32 is in a convex shape, and the convex part of each connecting seat penetrates out of one first through groove 311 and is connected and fixed with the frame 1; the rear-pull striking rack 31 and the two connecting seats 32 are connected and fixed in an up-down symmetrical manner through 4 concave connecting components 33 matched with screws.
In this embodiment, the front end of the rear pulling and striking frame 31 is provided with a through hole 34, the front end and the rear wall of the rear pulling and striking frame are provided with a front connector 44 and a rear connector 44, and the tensioning cylinder 41 is mounted on the front connector 44 and provides support for the backhander 4.
In this embodiment, to facilitate the connection between the connecting seat 31 and the frame 1, two second fixing holes 14 are formed in the middle of the frame 1, a pin 12 is installed in each second fixing hole 11, a spacer 13 is installed outside the pin 12, and the two spacer 13 are respectively connected and fixed with a convex portion of one connecting seat 32.
Example 4:
on the basis of any one of embodiments 1 to 3, in this embodiment, the positioning spacer 42 is provided with a second through groove 421, the front tension pull rod shaft 43 is provided with a groove and is provided with a spring positioning pin 48, and the spring positioning pin 48 penetrates out of the second through groove 421; a compression spring 49 is arranged outside the positioning spacer 42, and two ends of the compression spring 49 are respectively in close contact with the swinging device 45 and the spring positioning pin 48. With this arrangement, when the reverse striking part 432 strikes the front positioning frame 462 in the reverse direction, a buffer function can be provided due to the compression spring 49 and the spring positioning pin, so as to increase the stability of the device during use.
Example 5:
on the basis of any one of embodiments 1 to 5, the pulling pin 463 is provided with a limiting hole 4631, each of the positions of the front positioning frame 462 corresponding to the mounting groove 4621 is provided with a positioning hole 4622 and a limiting screw 4623, and the limiting screw 4623 extends into the limiting hole 4631. This arrangement can limit the stroke of the drawing pin 463.
A large-scale blast furnace tuyere middle cover automatic dismounting device use the back, can reduce the operation number, reduce the operation labour, when dismantling the tuyere middle cover, need not artifical closely operation simultaneously, improved the operation security, this device is applicable to the middle cover that the not equidimension warp moreover, can effectively save demolish the time.
For traditional dismantlement mode, a large-scale blast furnace tuyere middle cover automatic dismounting device drop into after using, the direct benefit of its production is obvious: 1. the investment cost for designing, researching and assembling the dismounting device is low; 2. after the dismounting device is used, operators only need 6 persons, and a large amount of labor cost is saved (60 original dismounting operators press 6 blast furnaces); 3. the predicted service life of the dismounting device is 5 years (2 dismounting devices are required according to the prediction of 6 blast furnaces), and the maintenance cost is saved. Meanwhile, it can also produce indirect benefits, mainly including: 1) the maintenance time is shortened, the blast furnace is overflowed in advance, and the yield of the blast furnace is improved; 2) after the equipment research and development test is successful, the device can be put to the market, the economic benefit is considerable, the demand can be further enlarged along with the popularization of the device, and the economic benefit can be further improved.
Claims (10)
1. An automatic dismounting device for a large-scale blast furnace tuyere middle sleeve is characterized by comprising a frame (1), a back-pull device (2), a connecting device (3) and a counterattack device (4); the rear pulling device (2) comprises two hydraulic oil cylinders (21) which are respectively arranged on two sides of the frame (1); the connecting device (3) is arranged in the middle of the rack (1) and is positioned at the same side as the rear pulling device (2); the counterbeating device (4) comprises a tensioning oil cylinder (41) arranged at the front end of the connecting device (3), and a positioning spacer bush (42) is arranged at the front end of the tensioning oil cylinder (41); the outer side of the rear part of the positioning spacer bush (42) is provided with a swinging device (45), the front end of the swinging device is provided with a positioning rack (46), and the front side of the swinging device (45) is provided with a positioning disc (47); the positioning rack (46) comprises a front positioning rack (462) and a rear positioning rack (461) which are disc-shaped, the rear positioning rack (461) is fixed at the front end of the positioning spacer bush (42), and the front positioning rack (462) is fixed at the front side of the rear positioning rack (461); at least 2 mounting grooves (4621) are radially and symmetrically arranged on the inner side of the front positioning frame (462), and a pulling pin (463) with a circular arc-shaped rear end and a length larger than that of each mounting groove (4621) is arranged in each mounting groove (4621); the front end inside the tensioning oil cylinder (41) is provided with a front tensioning pull rod shaft (43); the front tension pull rod shaft (43) penetrates through the positioning spacer bush (42) and the positioning rack (46), the front part of the front tension pull rod shaft is provided with an annular groove (431) matched with the rear end of the pull pin (463), and the front end of the front tension pull rod shaft is provided with a reverse beating part (432).
2. The automatic dismounting device for the tuyere medium sleeve of the large-scale blast furnace as claimed in claim 1, wherein the outer side and the inner side of the front end of said pulling pin (463) have an inward slope and a circular arc respectively.
3. The automatic dismounting device for the tuyere middle sleeve of the large-scale blast furnace as claimed in claim 1, wherein the left and right sides of the frame (1) are respectively provided with a first fixing hole (11), each first fixing hole (11) is internally provided with a pin shaft (12), the outer side of the pin shaft (12) is provided with a spacer sleeve (13), and each hydraulic cylinder (21) is respectively movably connected with one spacer sleeve (13).
4. The automatic dismounting device for the tuyere medium sleeve of the large-scale blast furnace as claimed in claim 1, wherein said swinging device (45) comprises a swinging disc (451), copper sleeves (452) are arranged on both sides of the swinging disc (451), a swinging seat (453) is arranged on the copper sleeves (452), and said positioning disc (47) is fixedly connected with the swinging seat (453).
5. The automatic dismounting device for the tuyere medium sleeve of the large-scale blast furnace as claimed in claim 1, wherein said connecting device (3) comprises a back-pull striking frame (31) and two connecting seats (32); two sides of the back-pull beating rack (31) are respectively provided with a first through groove (311); the section of each connecting seat (32) is in a convex shape, and the convex part of each connecting seat penetrates out of one first through groove (311) and is connected and fixed with the rack (1); the rear-pull striking rack (31) and the two connecting seats (32) are fixedly connected through a plurality of connecting components (33).
6. The automatic dismounting device for the tuyere medium sleeve of the large-scale blast furnace as claimed in claim 5, wherein the front end of the rear pulling and striking frame (31) is provided with a through hole (34), the front end and the rear wall of the front end are provided with a front connector and a rear connector (44), and the tensioning cylinder (41) is arranged on the front connector and the rear connector (44).
7. The automatic dismounting device for the tuyere middle sleeve of the large-scale blast furnace as claimed in claim 5 or 6, wherein two second fixing holes (14) are formed in the middle of the frame (1), a pin shaft (12) is installed in each second fixing hole (11), a spacer sleeve (13) is installed on the outer side of the pin shaft (12), and the two spacer sleeves (13) are respectively connected and fixed with the convex part of one connecting seat (32).
8. The automatic dismounting device for the tuyere medium sleeve of the large-scale blast furnace as claimed in any one of claims 1 to 6, wherein a second through groove (421) is arranged on the positioning spacer bush (42), a groove is arranged on the front tension pull rod shaft (43) and a spring positioning pin (48) is arranged on the front tension pull rod shaft, and the spring positioning pin (48) penetrates out of the second through groove (421); and a compression spring (49) is arranged on the outer side of the positioning spacer bush (42), and two ends of the compression spring (49) are respectively in close contact with the swinging device (45) and the spring positioning pin (48).
9. The automatic dismounting device for the tuyere medium sleeve of the large-scale blast furnace as claimed in any one of claims 1 to 6, wherein a limiting hole (4631) is opened on said pulling pin (463), a positioning hole (4622) and a limiting screw (4623) are respectively installed on each position of said front positioning frame (462) corresponding to the installation groove (4621), and said limiting screw (4623) extends into the limiting hole (4631).
10. The automatic dismounting device for the tuyere medium sleeve of the large-scale blast furnace as claimed in claim 8, wherein a limiting hole (4631) is opened on said pulling pin (463), a positioning hole (4622) and a limiting screw (4623) are respectively installed on each position of said front positioning frame (462) corresponding to the installation groove (4621), and said limiting screw (4623) extends into the limiting hole (4631).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920826947.6U CN210048796U (en) | 2019-06-03 | 2019-06-03 | Automatic dismounting device for large-scale blast furnace tuyere middle sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920826947.6U CN210048796U (en) | 2019-06-03 | 2019-06-03 | Automatic dismounting device for large-scale blast furnace tuyere middle sleeve |
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| Publication Number | Publication Date |
|---|---|
| CN210048796U true CN210048796U (en) | 2020-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920826947.6U Active CN210048796U (en) | 2019-06-03 | 2019-06-03 | Automatic dismounting device for large-scale blast furnace tuyere middle sleeve |
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| CN (1) | CN210048796U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110029199A (en) * | 2019-06-03 | 2019-07-19 | 安徽马钢设备检修有限公司 | Large blast furnace tuyere medium sleeve automatic disassembling device |
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2019
- 2019-06-03 CN CN201920826947.6U patent/CN210048796U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110029199A (en) * | 2019-06-03 | 2019-07-19 | 安徽马钢设备检修有限公司 | Large blast furnace tuyere medium sleeve automatic disassembling device |
| CN110029199B (en) * | 2019-06-03 | 2024-02-02 | 安徽马钢设备检修有限公司 | Automatic dismounting device for middle sleeve of large blast furnace tuyere |
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