CN113213351A - Method for quickly installing downcomer of large blast furnace - Google Patents
Method for quickly installing downcomer of large blast furnace Download PDFInfo
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- CN113213351A CN113213351A CN202110404664.4A CN202110404664A CN113213351A CN 113213351 A CN113213351 A CN 113213351A CN 202110404664 A CN202110404664 A CN 202110404664A CN 113213351 A CN113213351 A CN 113213351A
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- downcomer
- block
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- support frame
- sliding block
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/42—Gripping members engaging only the external or internal surfaces of the articles
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Abstract
The application relates to a rapid mounting method of a large-scale blast furnace downcomer, which relates to the field of blast furnace mounting construction, and comprises the steps of S1, splicing and building the downcomer; s2, fixing the downcomer: the descending pipe is firmly clamped by the clamping mechanism; s3, hoisting: the supporting frame fixedly connected with the tower crane is driven to ascend through the tower crane, and the supporting frame drives the clamping mechanism and the downcomer to ascend to the required installation height; s4, adjusting the horizontal position of the downcomer; s5, adjusting the rotation angle of the downcomer: the rotating block is driven by the rotating mechanism to rotate along the horizontal axis, the rotating block drives the clamping mechanism to rotate, and the clamping mechanism drives the downcomer to rotate to a required installation angle; s6, mounting a down pipe: one end of the down pipe is welded with the five-way ball, and the other end of the down pipe is welded with the gravity dust collector, so that the fixation of the down pipe can be completed; s7, cleaning the site: and releasing the clamping state of the clamping mechanism, and cleaning the construction site. The method and the device have the effect of improving the installation precision and efficiency of the downcomer.
Description
Technical Field
The application relates to the field of blast furnace installation construction, in particular to a method for quickly installing a large-scale blast furnace downcomer.
Background
The installation of the ascending pipe, the descending pipe and the five-way ball is an important link in the blast furnace construction engineering construction, and marks the completion of the construction of high, large and heavy components in the blast furnace steel structure construction.
At present, when a blast furnace riser is installed, the upper end of a down pipe is required to be connected with a five-way ball, the lower end of the down pipe is connected with a gravity dust collector, the installation accuracy required by the down pipe is high, the installation angle is required to be not poor, interfaces at two ends can be highly matched, the down pipe is installed by placing the down pipe in a hoisting mode, a lifting rope is easy to shake in the hoisting process, and accordingly the installation difficulty of constructors is high, the installation accuracy is low, and the installation efficiency is low.
In view of the above-mentioned related art, the inventors have considered that there are drawbacks of poor accuracy and low efficiency in installing the downcomer.
Disclosure of Invention
In order to improve the installation precision and efficiency of the downcomer, the application provides a rapid installation method of the downcomer of the large-scale blast furnace.
The application provides a method for quickly installing a large-scale blast furnace downcomer, which adopts the following technical scheme: the method comprises the following steps:
s1, splicing and building of a down pipe: fixedly splicing all sections of the downcomer into a whole;
s2, fixing the downcomer: the descending pipe is firmly clamped by the clamping mechanism;
s3, hoisting: the supporting frame fixedly connected with the tower crane is driven to ascend through the tower crane, and the supporting frame drives the clamping mechanism and the downcomer to ascend to the required installation height;
s4, horizontal position adjustment of the downcomer: the horizontal displacement adjusting mechanism drives the sliding block to slide on the support frame, the sliding block drives the rotating block to slide, and the rotating block drives the clamping mechanism to slide in the length direction of the support frame, so that the fine adjustment in the horizontal direction is performed on the descending pipe;
s5, adjusting the rotation angle of the downcomer: the rotating block is driven by the rotating mechanism to rotate along the horizontal axis, the rotating block drives the clamping mechanism to rotate, and the clamping mechanism drives the downcomer to rotate to a required installation angle;
s6, mounting a down pipe: one end of the down pipe is welded with the five-way ball, and the other end of the down pipe is welded with the gravity dust collector, so that the fixation of the down pipe can be completed;
s7, cleaning the site: and releasing the clamping state of the clamping mechanism, and cleaning the construction site.
Through adopting above-mentioned technical scheme, when constructor installs the downcomer, at first splice into a whole through the welding with each section of downcomer, after that with the downcomer centre gripping through fixture, drive fixture and downcomer through the tower crane afterwards and rise to required mounting height, drive the length direction that the sliding block followed the support frame through horizontal displacement adjustment mechanism and slide, thereby finely tune the horizontal position of downcomer, rotary mechanism drives rotatory piece and rotates afterwards, rotatory piece drives fixture and rotates, fixture drives the downcomer and rotates to required installation angle along horizontal axis, constructor is connected downcomer one end and five-way pipe through the welding at last, the other end is connected with gravity dust remover can. During the downtake installation, constructor accessible horizontal displacement adjustment mechanism and rotary mechanism carry out constantly to the position and the installation angle of downtake and adjust, and rotary mechanism is difficult for rocking, can carry out accurate regulation to the installation angle of downtake to can be fast and accurate installation downtake, and then promote the installation accuracy and the efficiency of downtake.
Optionally, in S5, the rotating mechanism includes a rotating shaft disposed on the supporting frame, and a driving assembly disposed between the rotating shaft and the rotating block for driving the rotating block to rotate;
the both ends of rotation axis are rotated with the support frame and are connected, the rotation axis rotates with the sliding block to be connected, just the sliding block can be located the rotation axis and slide.
By adopting the technical scheme, when a constructor drives the descending pipe to rotate through the rotating mechanism, the power assembly drives the rotating shaft to rotate at first, then the rotating shaft drives the rotating block to rotate, then the rotating block drives the clamping mechanism to rotate, and the clamping mechanism can drive the descending pipe to rotate.
Optionally, the driving assembly includes a band-type brake motor disposed at one end of the rotating shaft, a driving gear connected to the rotating shaft in a sliding manner, and a driven gear connected to the sliding block in a rotating manner;
the output shaft and the rotation axis fixed connection of band-type brake motor, the shell and the support frame fixed connection of band-type brake motor, drive gear and driven gear intermeshing, rotatory piece and driven gear fixed connection.
By adopting the technical scheme, when a constructor drives the rotating shaft to rotate through the driving assembly, firstly, the contracting brake motor is started, the contracting brake motor drives the rotating shaft to rotate, the rotating shaft drives the driving gear to rotate, and the driving gear drives the driven gear to rotate, so that the driven gear can drive the rotating block fixedly connected with the driven gear to rotate; and the contracting brake motor can realize the self-locking of the rotating shaft after the power failure, so that the descending pipe keeps a certain inclination angle, thereby ensuring the safety of constructors in work.
Optionally, the rotating shaft is a spline shaft, a spline groove is formed in the driving gear, and the spline shaft is inserted into the spline groove.
Through adopting above-mentioned technical scheme, the integral key shaft both can drive gear and rotate, does not influence drive gear again and is located the integral key shaft and slides to spline intensity is high, firm in connection.
Optionally, in S2, the clamping mechanism includes an adjusting plate fixedly disposed at one end of the rotating block, two clamping plates slidably connected to the adjusting plate, and a linkage assembly disposed on the adjusting plate and configured to simultaneously drive the two clamping plates to approach or move away from each other;
two the grip block is the arc setting, two the convex surface direction of grip block arcwall face is towards the one side that two grip blocks kept away from each other, the lateral wall of downcomer and the arcwall face butt of grip block.
By adopting the technical scheme, when a constructor clamps the downcomer through the clamping mechanism, the two clamping plates are driven to approach each other through the linkage assembly, so that the arc-shaped surface of the clamping plate is abutted against the downcomer, the downcomer is tightly pressed between the two clamping plates, and the clamping and fixing of the downcomer are realized; and the arc-shaped surface of the clamping plate increases the contact area between the clamping plate and the outer side wall of the downcomer, and improves the stability of the clamping mechanism in clamping the downcomer.
Optionally, the linkage assembly comprises two support plates fixedly arranged on the adjusting plate, two linkage screws respectively rotatably connected to the two support plates, and a driving motor arranged at one end of one of the linkage screws;
the clamping plates are located between the two supporting plates, the linkage screw rods are fixedly connected and are opposite in thread turning direction, the linkage screw rods correspond to the two clamping plates one to one, the linkage screw rods are in threaded connection with the corresponding clamping plates, an output shaft of the driving motor is fixedly connected with one of the linkage screw rods, and a shell of the driving motor is fixedly connected with the supporting plates.
Through adopting above-mentioned technical scheme, when constructor passed through two grip blocks of linkage subassembly drive and is close to each other or keep away from, at first constructor started driving motor, and driving motor's output shaft drives rather than fixed connection's linkage screw rod and rotates, and the linkage screw rod drives rather than another linkage screw rod synchronous rotation of fixed connection, and two linkage screw rod screw threads revolve to opposite to drive two grip blocks and be close to each other in step or keep away from.
Optionally, the two linkage screws are integrally formed.
Through adopting above-mentioned technical scheme, integrated into one piece sets up firm in connection, intensity is high, stable in use to it is more firm to make two linkage screw rods connect, and then has improved fixture's stability.
Optionally, a dovetail block is fixedly arranged on one side, close to the adjusting plate, of the clamping plate, a dovetail groove matched with the dovetail block is formed in the adjusting plate, and the dovetail block is located in the dovetail groove and slides.
By adopting the technical scheme, the dovetail block can only slide along the arrangement direction of the dovetail groove, so that the sliding motion of the clamping plate is realized, and the guide and limiting effects are realized on the movement of the clamping plate, so that the dovetail block cannot be separated from the adjusting plate up and down.
Optionally, in S4, the horizontal displacement adjusting mechanism includes a driving screw rotatably connected to the support frame, a power motor disposed at one end of the driving screw for driving the driving screw to rotate, and a guiding assembly disposed between the sliding block and the support frame for guiding and limiting sliding of the sliding block;
an output shaft of the power motor is fixedly connected with a driving screw rod, a shell of the power motor is fixedly connected with the support frame, and the driving screw rod is in threaded connection with the sliding block.
By adopting the technical scheme, when a constructor finely adjusts the horizontal position of the downcomer through the horizontal displacement adjusting mechanism, the power motor is started at first, the power motor drives the driving screw to rotate, the driving screw can drive the sliding block in threaded connection with the driving screw to slide along the length direction of the support frame, and meanwhile, the guide assembly plays a role in guiding and limiting the sliding and rotating of the sliding block in moving, so that the sliding block can only slide along the length direction of the support frame.
Optionally, the guide assembly comprises a plurality of loss reduction wheels arranged on the sliding block and a guide rod fixedly arranged on the support frame;
the guide way has been seted up on the sliding block, the loss reduction wheel is located the guide way, the loss reduction wheel rotates with the sliding block to be connected, guide arm and loss reduction wheel butt.
By adopting the technical scheme, when the sliding block is positioned on the support frame to slide, the sliding block can drive the loss reduction wheel to rotate, and the guide rod cannot be separated from the guide groove, so that the sliding block cannot rotate and can only move along the length direction of the support frame; the loss reduction wheel reduces the friction force when the guide rod slides with the sliding block, and further reduces the abrasion between the guide rod and the sliding block.
In summary, the present application includes at least one of the following beneficial technical effects:
1. during the installation of the down pipe, a constructor can continuously adjust the position and the installation angle of the down pipe through the horizontal displacement adjusting mechanism and the rotating mechanism, the rotating mechanism is not easy to shake, and the installation angle of the down pipe can be accurately adjusted, so that the down pipe can be quickly and accurately installed, and the installation precision and the installation efficiency of the down pipe are improved;
2. the clamping mechanism can synchronously control the two clamping plates to get close to or get away from each other, and the arc-shaped surfaces of the clamping plates increase the contact area between the clamping plates and the outer side wall of the downcomer, so that the stability of the clamping mechanism in clamping the downcomer is improved;
3. the constructor can control the horizontal displacement adjustment mechanism to adjust the positions of the two ends of the downcomer by controlling the rotation of the output shaft of the power motor, and the horizontal displacement adjustment mechanism is adjusted by the driving screw rod, so that the thread on the driving screw rod is fine and high in precision, and the two ends of the downcomer can be aligned conveniently.
Drawings
FIG. 1 is a schematic diagram illustrating the downcomer installation process in an embodiment of the present application;
FIG. 2 is a partial schematic view showing a chucking mechanism;
FIG. 3 is a partial schematic view showing a horizontal displacement adjusting mechanism;
fig. 4 is a partial sectional view showing the rotating mechanism;
fig. 5 is a partially enlarged schematic view showing a portion a in fig. 4.
Description of reference numerals: 1. a down pipe; 2. a clamping mechanism; 21. an adjusting plate; 211. a dovetail groove; 22. a clamping plate; 23. a dovetail block; 24. a linkage assembly; 241. a support plate; 242. a linkage screw; 243. a drive motor; 3. rotating the block; 4. tower crane; 5. a support frame; 6. a sliding block; 61. a guide groove; 7. a horizontal displacement adjustment mechanism; 71. a drive screw; 72. a power motor; 73. a guide assembly; 731. a guide bar; 732. a loss reduction wheel; 8. a rotation mechanism; 81. a rotating shaft; 82. a drive assembly; 821. a band-type brake motor; 822. a drive gear; 8221. a spline groove; 823. a driven gear.
Detailed Description
The present application is described in further detail below with reference to figures 1-5.
The embodiment of the application discloses a method for quickly installing a large-scale blast furnace downcomer.
A method for quickly installing a large-scale blast furnace downcomer comprises the following steps:
s1, splicing and building of the downcomer 1: referring to fig. 1, the segments of the downcomer 1 are joined together by welding.
S2, fixing the downcomer 1: referring to fig. 1 and 2, the downcomer 1 is firmly clamped by a clamping mechanism 2; fixture 2 is including setting firmly regulating plate 21 in 3 one ends of rotatory piece, regulating plate 21 is rectangular shaped plate, be provided with two grip blocks 22 on the regulating plate 21, grip block 22 is the arc setting, the convex surface direction of two grip blocks 22 arcwalls towards the one side that two grip blocks 22 kept away from each other, two grip blocks 22 symmetry sets up, the lateral wall of downcomer 1 and grip block 22's arcwall butt, grip block 22 slides with regulating plate 21 and is connected. One side of the clamping plate 22 close to the adjusting plate 21 is fixedly provided with a dovetail block 23, the adjusting plate 21 is provided with a dovetail groove 211 matched with the dovetail block 23, the dovetail block 23 is located in the dovetail groove 211 and slides, the dovetail block 23 can only slide along the opening direction of the dovetail groove 211 and is used for guiding and limiting the movement of the clamping plate 22, and the clamping plate cannot be separated from the adjusting plate 21 up and down. The adjusting plate 21 is provided with a linkage assembly 24, and the linkage assembly 24 is used for simultaneously driving the two clamping plates 22 to approach or move away from each other.
Referring to fig. 2, the linkage assembly 24 includes two support plates 241 fixed on the adjustment plate 21, the support plates 241 are rectangular plates, the two support plates 241 are parallel to each other, and the two clamping plates 22 are located between the two support plates 241. The two support plates 241 are respectively provided with linkage screw rods 242, the thread turning directions of the two linkage screw rods 242 are opposite, the two linkage screw rods 242 are integrally formed, the axes of the two linkage screw rods 242 are collinear, the linkage screw rods 242 are rotatably connected with the support plates 241, the two linkage screw rods 242 correspond to the two clamping plates 22 one by one, and the linkage screw rods 242 are in threaded connection with the corresponding clamping plates 22. One end of one of the linkage screws 242 penetrates through the support plate 241, one end of the linkage screw 242 penetrating through the support plate 241 is provided with a driving motor 243, an output shaft of the driving motor 243 is fixedly connected with the linkage screw 242, and a shell of the driving motor 243 is fixedly connected with the support plate 241.
When a constructor clamps the downcomer 1 through the clamping mechanism 2, the driving motor 243 is firstly started, the output shaft of the driving motor 243 drives the linkage screw 242 fixedly connected with the driving motor to rotate, the linkage screw 242 drives the other linkage screw 242 fixedly connected with the linkage screw to synchronously rotate, the thread turning directions of the two linkage screws 242 are opposite, so that the two clamping plates 22 are driven to synchronously approach each other, the arc-shaped surfaces of the clamping plates 22 are abutted to the downcomer 1, the downcomer 1 is tightly pressed between the two clamping plates 22, and the clamping and fixing of the downcomer 1 are realized.
S3, hoisting: referring to fig. 2 and 3, tower crane 4 is last to set firmly support frame 5, and support frame 5 is the setting of U template, is provided with sliding block 6 on the support frame 5, and sliding block 6 slides with support frame 5 and is connected, is provided with rotatory piece 3 on sliding block 6, rotatory piece 3 and regulating plate 21 fixed connection. Constructor drives rather than 5 rises of support frame of fixed connection through tower crane 4, and support frame 5 drives fixture 2 and downtake 1 and rises to required mounting height.
S4, horizontal position adjustment of the downcomer 1: referring to fig. 3, the horizontal displacement adjusting mechanism 7 includes a driving screw 71 disposed on the supporting frame 5, and the driving screw 71 is rotatably connected to the supporting frame 5; one end of the driving screw 71 is provided with a power motor 72, the power motor 72 is used for driving the driving screw 71 to rotate, an output shaft of the power motor 72 is fixedly connected with the driving screw 71, a shell of the power motor 72 is fixedly connected with the support frame 5, and the driving screw 71 is in threaded connection with the sliding block 6. A guide assembly 73 is arranged between the sliding block 6 and the support frame 5, and the guide assembly 73 is used for guiding and limiting the sliding of the sliding block 6.
Referring to fig. 3, the guiding assembly 73 includes a guiding rod 731 fixed on the supporting frame 5, the sliding block 6 is provided with a guiding groove 61, and the guiding rod 731 is located in the guiding groove 61 and slides. The sliding block 6 is provided with a plurality of loss reduction wheels 732, the loss reduction wheels 732 are positioned in the guide grooves 61, the loss reduction wheels 732 are rotatably connected with the sliding block 6, the guide rod 731 is abutted against the loss reduction wheels 732, the loss reduction wheels 732 are used for reducing the friction force when the guide rod 731 slides with the sliding block 6, and the abrasion between the guide rod 731 and the sliding block 6 is reduced.
When constructor fine-tunes the horizontal position of downcomer 1 through horizontal displacement adjustment mechanism 7, at first start motor 72, motor 72 drives drive screw 71 and rotates, drive screw 71 can drive the sliding block 6 rather than threaded connection and slide along the length direction of support frame 5, guide arm 731 is located the guide way 61 and slides simultaneously, make sliding block 6 can not rotate, thereby make sliding block 6 only can slide along the length direction of support frame 5, sliding block 6 drives swivel block 3 and slides afterwards, swivel block 3 drives fixture 2 and is located support frame 5 length direction and slides, thereby carry out the fine setting of horizontal direction to downcomer 1.
S5, adjusting the rotation angle of the downcomer 1: referring to fig. 4 and 5, the rotating mechanism 8 includes a rotating shaft 81 disposed on the support frame 5, the rotating shaft 81 is a spline shaft, two ends of the rotating shaft 81 are rotatably connected to the support frame 5, the rotating shaft 81 is rotatably connected to the sliding block 6, and the sliding block 6 can slide on the rotating shaft 81. A driving assembly 82 is arranged between the rotating shaft 81 and the rotating block 3, and the driving assembly 82 is used for driving the rotating block 3 to rotate.
Referring to fig. 4 and 5, the driving assembly 82 includes a brake motor 821 arranged at one end of the rotating shaft 81, an output shaft of the brake motor 821 is fixedly connected to the rotating shaft 81, and a housing of the brake motor 821 is fixedly connected to the supporting frame 5. The rotating shaft 81 is provided with a driving gear 822, the driving gear 822 is connected with the rotating shaft 81 in a sliding manner, the driving gear 822 is positioned inside the sliding block 6, the driving gear 822 is provided with a spline groove 8221, and the rotating shaft 81 is inserted into the spline groove 8221. A driven gear 823 is arranged on the sliding block 6, the driven gear 823 is in rotating connection with the sliding block 6, the driving gear 822 and the driven gear 823 are meshed with each other, and the rotating block 3 is fixedly connected with the driven gear 823.
When a constructor drives the downcomer 1 to rotate through the rotating mechanism 8, the constructor firstly starts the contracting brake motor 821, the contracting brake motor 821 drives the rotating shaft 81 to rotate, the rotating shaft 81 drives the driving gear 822 to rotate, the driving gear 822 drives the driven gear 823 to rotate, the driven gear 823 drives the rotating block 3 fixedly connected with the driven gear 823 to rotate, then the rotating block 3 drives the clamping mechanism 2 to rotate, the clamping mechanism 2 can drive the downcomer 1 to rotate to a required installation angle, and the contracting brake motor 821 has self-locking performance, so that the downcomer 1 can keep an original inclination angle.
S6, installing a downcomer 1: referring to fig. 1, the downcomer 1 is fixed by welding one end of the downcomer 1 to a five-way ball and welding the other end of the downcomer 1 to a gravity dust collector.
S7, cleaning the site: referring to fig. 2, the clamping state of the clamping mechanism 2 is released, and the construction site is cleaned.
The implementation principle of the method for quickly installing the large-scale blast furnace downcomer in the embodiment of the application is as follows: when constructor installs downtake 1, at first splice into a whole through the welding with each section of downtake 1, start driving motor 243 after that, driving motor 243 control splint are with downtake 1 centre gripping, drive fixture 2 and downtake 1 through tower crane 4 afterwards and rise to required mounting height, start motor power 72 after that, motor power 72 control drives the length direction of sliding block 6 along support frame 5 and slides, thereby finely tune downtake 1's horizontal position, start band-type brake motor 821 afterwards, band-type brake motor 821 control drives rotatory piece 3 and rotates, rotatory piece 3 drives fixture 2 and rotates, fixture 2 drives downtake 1 rotates to required mounting angle along the horizontal axis, constructor is connected downtake 1 one end and five-way pipe through the welding at last, the other end is connected with the gravity dust remover can. During downtake 1 installation, constructor accessible horizontal displacement adjustment mechanism 7 and rotary mechanism 8 constantly adjust downtake 1's position and installation angle, and rotary mechanism 8 is difficult for rocking, can carry out accurate regulation to downtake 1's installation angle to can be fast and accurate installation downtake 1, and then promote downtake 1's installation accuracy and efficiency.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. A method for quickly installing a large-scale blast furnace downcomer is characterized by comprising the following steps: the method comprises the following steps:
s1, splicing and building of the downcomer (1): all the sections of the downcomer (1) are fixedly spliced into a whole;
s2, fixing the downcomer (1): the descending pipe (1) is firmly clamped by the clamping mechanism (2);
s3, hoisting: the tower crane (4) drives a support frame (5) fixedly connected with the tower crane to ascend, and the support frame (5) drives the clamping mechanism (2) and the downcomer (1) to ascend to a required installation height;
s4, horizontal position adjustment of the downcomer (1): the horizontal displacement adjusting mechanism (7) drives the sliding block (6) to slide on the support frame (5), the sliding block (6) drives the rotating block (3) to slide, and the rotating block (3) drives the clamping mechanism (2) to slide in the length direction of the support frame (5), so that the descending pipe (1) is finely adjusted in the horizontal direction;
s5, adjusting the rotation angle of the downcomer (1): the rotating block (3) is driven to rotate along the horizontal axis by the rotating mechanism (8), the clamping mechanism (2) is driven to rotate by the rotating block (3), and the descending pipe (1) is driven to rotate to a required installation angle by the clamping mechanism (2);
s6, installing a downcomer (1): one end of the down pipe (1) is welded with the five-way ball, and the other end of the down pipe is welded with the gravity dust collector, so that the down pipe (1) can be fixed;
s7, cleaning the site: the clamping state of the clamping mechanism (2) is released, and the construction site is cleaned.
2. The method for quickly installing the downcomer of the large-scale blast furnace according to claim 1, wherein the method comprises the following steps: in S5, the rotating mechanism (8) includes a rotating shaft (81) disposed on the support frame (5), and a driving assembly (82) disposed between the rotating shaft (81) and the rotating block (3) for driving the rotating block (3) to rotate;
the both ends of rotation axis (81) are rotated with support frame (5) and are connected, rotation axis (81) are rotated with sliding block (6) and are connected, just sliding block (6) can be located rotation axis (81) and slide.
3. A method for quickly installing a large-sized blast furnace downcomer according to claim 2, characterized in that: the driving assembly (82) comprises a contracting brake motor (821) arranged at one end of the rotating shaft (81), a driving gear (822) connected to the rotating shaft (81) in a sliding mode, and a driven gear (823) connected to the sliding block (6) in a rotating mode;
the output shaft and the rotation axis (81) fixed connection of band-type brake motor (821), the shell and support frame (5) fixed connection of band-type brake motor (821), drive gear (822) and driven gear (823) intermeshing, rotatory piece (3) and driven gear (823) fixed connection.
4. A method for quickly installing a large-sized blast furnace downcomer according to claim 3, wherein: the rotating shaft (81) is a spline shaft, a spline groove (8221) is formed in the driving gear (822), and the spline shaft is inserted into the spline groove (8221).
5. The method for quickly installing the downcomer of the large-scale blast furnace according to claim 1, wherein the method comprises the following steps: the clamping mechanism (2) comprises an adjusting plate (21) fixedly arranged at one end of the rotating block (3), two clamping plates (22) connected to the adjusting plate (21) in a sliding manner, and a linkage assembly (24) arranged on the adjusting plate (21) and used for driving the two clamping plates (22) to approach or separate from each other;
two grip block (22) are the arc setting, two the convex surface direction of grip block (22) arcwall face is towards the one side that two grip blocks (22) kept away from each other, the lateral wall of downcomer (1) and the arcwall face butt of grip block (22).
6. A method for quickly installing a large-sized blast furnace downcomer according to claim 5, characterized in that: the linkage assembly (24) comprises two support plates (241) fixedly arranged on the adjusting plate (21), two linkage screw rods (242) respectively rotatably connected to the two support plates (241), and a driving motor (243) arranged at one end of one linkage screw rod (242);
two grip block (22) are located between two backup pads (241), two linkage screw rod (242) fixed connection, and two linkage screw rod (242) screw thread turning is opposite, two linkage screw rod (242) and two grip block (22) one-to-one, linkage screw rod (242) and corresponding grip block (22) threaded connection, the output shaft and one of them linkage screw rod (242) fixed connection of driving motor (243), the shell and backup pad (241) fixed connection of driving motor (243).
7. A method for quickly installing a large-sized blast furnace downcomer according to claim 6, characterized in that: the two linkage screw rods (242) are integrally formed.
8. A method for quickly installing a large-sized blast furnace downcomer according to claim 7, characterized in that: one side of the clamping plate (22) close to the adjusting plate (21) is fixedly provided with a dovetail block (23), the adjusting plate (21) is provided with a dovetail groove (211) matched with the dovetail block (23), and the dovetail block (23) is located in the dovetail groove (211) to slide.
9. A method for the rapid installation of a downcomer for a large scale blast furnace according to any one of claims 1 to 8, wherein: in S4, the horizontal displacement adjusting mechanism (7) comprises a driving screw rod (71) rotatably connected to the support frame (5), a power motor (72) arranged at one end of the driving screw rod (71) and used for driving the driving screw rod (71) to rotate, and a guide assembly (73) arranged between the sliding block (6) and the support frame (5) and used for guiding and limiting the sliding of the sliding block (6);
an output shaft of the power motor (72) is fixedly connected with a driving screw rod (71), a shell of the power motor (72) is fixedly connected with the support frame (5), and the driving screw rod (71) is in threaded connection with the sliding block (6).
10. A method for quickly installing a large-sized blast furnace downcomer according to claim 9, wherein: the guide assembly (73) comprises a plurality of loss reduction wheels (732) arranged on the sliding block (6) and a guide rod (731) fixedly arranged on the support frame (5);
the sliding block (6) is provided with a guide groove (61), the loss reduction wheel (732) is located in the guide groove (61), the loss reduction wheel (732) is rotatably connected with the sliding block (6), and the guide rod (731) is abutted to the loss reduction wheel (732).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110404664.4A CN113213351B (en) | 2021-04-15 | 2021-04-15 | Method for quickly installing downcomer of large blast furnace |
Applications Claiming Priority (1)
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120112484A1 (en) * | 2010-11-04 | 2012-05-10 | Robb Farrow | Pipe pile sling |
| CN103233087A (en) * | 2013-04-25 | 2013-08-07 | 攀钢集团工程技术有限公司 | Method for lifting downcomer of blast furnace |
| CN103484584A (en) * | 2013-09-13 | 2014-01-01 | 中国十九冶集团有限公司 | Method for installing down pipe of blast furnace gas system |
| CN111824984A (en) * | 2020-07-21 | 2020-10-27 | 余洋 | Pipeline embedding device for hydraulic engineering |
| CN112145800A (en) * | 2020-09-11 | 2020-12-29 | 河北润达石化工程建设有限公司 | Petroleum pipeline installation auxiliary device and using method |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120112484A1 (en) * | 2010-11-04 | 2012-05-10 | Robb Farrow | Pipe pile sling |
| CN103233087A (en) * | 2013-04-25 | 2013-08-07 | 攀钢集团工程技术有限公司 | Method for lifting downcomer of blast furnace |
| CN103484584A (en) * | 2013-09-13 | 2014-01-01 | 中国十九冶集团有限公司 | Method for installing down pipe of blast furnace gas system |
| CN111824984A (en) * | 2020-07-21 | 2020-10-27 | 余洋 | Pipeline embedding device for hydraulic engineering |
| CN112145800A (en) * | 2020-09-11 | 2020-12-29 | 河北润达石化工程建设有限公司 | Petroleum pipeline installation auxiliary device and using method |
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