CN113667497B

CN113667497B - In-position deviation rectifying method for coke pushing equipment

Info

Publication number: CN113667497B
Application number: CN202111010564.XA
Authority: CN
Inventors: 贾玲; 邓利
Original assignee: China 19th Metallurgical Corp
Current assignee: China 19th Metallurgical Corp
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2023-04-18
Anticipated expiration: 2041-08-31
Also published as: CN113667497A

Abstract

The invention discloses a method for correcting deviation of coke pushing equipment in place, relates to the technical field of metallurgical engineering construction, and solves the problems of cost increase, construction period extension and equipment damage caused by secondary installation of coke pushing equipment. The technical scheme adopted by the invention is as follows: the in-position deviation rectifying method of the coke pushing equipment comprises the following steps: firstly, fixing each wheel of the coke pusher after a running gear of the coke pusher is installed to be qualified; secondly, fixedly connecting the stand columns with the traveling device, and connecting the stand columns through connecting beams to form an integral structure; thirdly, arranging supports on the outer sides of the tops of the stand columns respectively, mounting a jack on each support, and pushing the frame through the jack until the frame rotates to the position; and finally, installing and fixing the frame and the upright post. The invention adopts a mode of pushing the rotating frame to realize the deviation correction of the coke pushing device and avoid secondary installation. The invention is used for correcting the deviation of the coke pushing equipment on the coke pusher during the installation.

Description

In-position deviation rectifying method for coke pushing equipment

Technical Field

The invention relates to the technical field of metallurgical engineering construction, in particular to a method for correcting deviation of coke pushing equipment on a coke pusher during installation.

Background

The coke pushing equipment mainly refers to various coke pushing devices on a coke pusher. When the coke pushing equipment is installed, due to equipment manufacturing errors and installation errors, the situation that the vertical deviation between the central line of the reserved bolt of the coke pushing equipment and the central line of the track of the coke pusher exceeds an allowable value easily occurs, so that the installation of a door taking mechanism, a furnace door cleaning device, a furnace frame cleaning device, a coke pushing rod and a coal leveling rod is influenced, and the adjustment is needed.

There are generally two methods for adjusting the coke pushing equipment. The first method is to ream the hole on the frame structure, namely under the condition of ensuring the central line of the coke pushing rod to be vertical to the central line of the coke pusher track, ream the hole of the equipment installation bolt hole and then install the equipment installation bolt hole. And the second method is to totally disassemble all steel structures and equipment of the coke pusher, perform secondary installation after checking layer by layer again, and perform reaming if necessary. The second method is suitable for reaming situations where the deviation of the bore beyond the equipment bottom plate inwards is more than 20mm, and can only be installed a second time as this does not allow the cutting equipment to ream. The second method extends the installation period, which causes a significant increase in installation costs and also easily causes damage to the equipment.

Disclosure of Invention

The invention provides a method for correcting the deviation of coke pushing equipment in place, which solves the problems of cost increase, construction period extension and easy equipment damage caused by secondary installation of coke pushing equipment.

The technical scheme adopted by the invention is as follows: the in-position deviation rectifying method of the coke pushing equipment comprises the following steps:

s1, after the walking device of the coke pusher is installed to be qualified, all wheels of the coke pusher are fixed. Because the wheel of coke pusher is located the rail, can fix respectively at the wheel along orbital front and back side and set up the baffle, the baffle is the arc and with the external diameter adaptation of wheel with the one side of wheel contact to fixed wheel. For example, the baffle is a steel plate with the thickness of 25mm, and the position of the steel plate far away from the wheel is welded and fixed with the steel rail.

S2, a frame consisting of a front beam, a rear beam and a side beam is arranged at the top of an upright post of the coke pusher, so that the verticality of the upright post of the coke pusher meets the standard requirement, the upright post is fixedly connected with the traveling device, and the upright post is connected through a connecting beam to form an integral structure. Specifically, the method comprises the following steps: the stand is four, and the tie-beam is 28# channel-section steel.

And S3, arranging supports on the outer sides of the tops of the stand columns respectively, mounting jacks on the supports, enabling the jacking directions of the jacks to be horizontal and opposite to the frame, and arranging the jacking directions of the jacks clockwise or anticlockwise.

Further, the method comprises the following steps: and S3, firstly, erecting a scaffold and a construction platform, and then, arranging a support and installing a jack.

Specifically, the method comprises the following steps: the fixed connecting plate that sets up in the outside of stand sets up diagonal brace and spreader bar on the connecting plate, and connecting plate, diagonal brace and spreader bar form triangular supports frame, and the fixed riser that sets up in upper portion of triangular supports frame, jack are installed in one side of riser, and the jacking end of jack sets up the diffuser plate or the position that the frame corresponds with the jacking end sets up the diffuser plate, sets up fender position board or arm-tie between riser and the triangular supports frame. For example, the jack is a 50t hydraulic jack, the connecting plate, the vertical plate, the diffusion plate and the stop plate are all steel plates with the thickness of 25mm, and the diagonal brace and the transverse brace are 28# channel steel.

And S4, pushing the frame through a jack until the frame rotates to the position. In order to reduce the weight of the upper part of the frame and reduce the load required by the jack for pushing the frame, in S4, unnecessary coke pushing devices on the frame can be hoisted and taken down firstly, and then pushing is carried out.

And S5, installing and fixing the frame and the upright post.

Further, the method comprises the following steps: s5, fixing the frame and the upright posts through bolts; for the bolt hole needing to be reamed on the frame, the bolt hole of the frame is reamed and then fixed through a bolt; and if the reaming range exceeds the equipment bottom plate, welding a steel plate with the thickness not less than that of the bottom plate at the edge of the equipment bottom plate.

Further, the method comprises the following steps: and S5, adding a base plate to the hole expansion part, fully welding the base plate, the bolt and the periphery of the bolt, and coating paint.

The invention has the beneficial effects that: the invention adopts the hydraulic jack to rotate the frame consisting of the front beam, the rear beam and the side beams and drives the platform formed by the frame to rotate, thereby realizing the correction adjustment, leading the verticality of the central line of the coke pushing rod and the central line of the coke pusher track to meet the standard requirement and avoiding the secondary installation. The in-place deviation rectifying method of the coke pushing equipment is economical and quick, has little influence on the construction period, and fully saves the construction cost.

And each wheel of the coke pusher is locked by the two baffle plates, so that the operation is simple, the locking is firm, and the coke pusher can be prevented from moving. After the scaffold and the construction platform are erected, the support and the mounting jack are arranged, and safety of high-altitude operation is guaranteed.

Drawings

FIG. 1 is a schematic diagram of the practice of the present invention.

Fig. 2 is an enlarged view of fig. 1 at the point of mounting the support and jack.

Fig. 3 is a side view of the locked wheel of fig. 1.

Fig. 4 is a plan view at the frame in fig. 1.

The device comprises wheels 1, columns 2, a frame 3, a connecting beam 4, a support 5, a connecting plate 51, inclined supporting rods 52, transverse supporting rods 53, a vertical plate 54, a diffusion plate 55, a stop plate 56, a jack 6, a steel rail 7, a baffle 8 and a coke pushing device 9.

Detailed Description

The invention will be further described with reference to the accompanying drawings.

As shown in figure 1, the deviation rectifying method for the coke pushing equipment in position of the invention is to rotatably adjust a frame 3 consisting of a front beam, a rear beam and a side beam relative to an upright post 2 so as to meet the installation specification requirement of a drawing and realize the deviation rectifying purpose, and concretely comprises the following steps.

S1, after the walking device of the coke pusher is installed to be qualified, fixing each wheel 1 of the coke pusher to prevent shaking. Because the wheel 1 of the coke pusher is positioned on the steel rail 7, the baffle plates 8 can be respectively and fixedly arranged at the front side and the rear side of the wheel 1 along the direction of the rail, for example, the baffle plates 8 are welded and fixed on the steel rail 7, and the side of the baffle plates 8, which is contacted with the wheel 1, is arc-shaped and is matched with the outer diameter of the wheel 1, so that the wheel 1 is fixed, see fig. 3. Baffle-panels 8 may be made of steel sheet having a thickness of 25 mm.

S2, a frame 3 consisting of a front beam, a rear beam and side beams is arranged at the top of the upright post 2 of the coke pusher, and the frame 3 forms a two-layer platform which is used for installing various coke pushing devices 9. The verticality of the upright post 2 of the coke pusher meets the standard requirement, the upright post 2 is fixedly connected with the running gear, and the upright post 2 is connected through the connecting beam 4 to form an integral structure.

The columns 2 are generally four and are located at the lower part of the four corners of the frame 3. Under the condition of keeping the perpendicularity of each upright post 2 unchanged, the upright posts 2 are connected through the connecting beams 4, so that each upright post 2 forms an integral structure. For example, the connecting beam 4 is a 28# channel steel, and connecting plates and rib plates are arranged between two ends of the connecting beam 4 and the upright post 2 to ensure stability. And (3) under the condition of rechecking the verticality of each upright post 2, fully screwing the upright posts 2 and the connecting bolts of the running gear, and fully welding.

S3, respectively arranging a support 5 on the outer side of the top of each upright post 2, mounting a jack 6 on each support 5, enabling the jacking direction of each jack 6 to be horizontal and opposite to the frame 3, and arranging the jacking directions of the jacks 6 clockwise or anticlockwise.

The support 5 is used for mounting a jack 6 and selects a steel structural member. For example, referring to fig. 2, a connecting plate 51 is fixedly arranged on the outer side of the upright 2, the connecting plate 51 is a steel plate and is connected to the outer side of the upright 2 through bolts and is welded and fixed, a diagonal brace 52 and a transverse brace 53 are arranged on the connecting plate 51, the transverse brace 53 is horizontally arranged, and the connecting plate 51, the diagonal brace 52 and the transverse brace 53 form a triangular support frame. The upper part of the triangular support frame is fixedly provided with a vertical plate 54, the vertical plate 54 is vertically arranged, and the jack 6 is fixedly arranged on one side of the vertical plate 54 close to the frame 3. A structure for preventing the vertical plate 54 from falling is also arranged between the vertical plate 54 and the triangular support frame, for example, a stop plate 56 or a pulling plate is arranged between the vertical plate 54 and the triangular support frame. As shown in fig. 2, the jack 6 is fixedly installed on one side of the vertical plate 54, a stop plate 56 is arranged between the other side of the vertical plate 54 and the triangular support frame, and the stop plate 56 is triangular. In order to avoid the deformation of the frame 3 at the jacking position of the jack 6 caused by the overlarge jacking force of the jacking end of the jack 6, the jacking end of the jack 6 is provided with a diffusion plate 55 or the diffusion plate 55 is arranged at the position of the frame 3 corresponding to the jacking end. Considering that the frame 3 has large mass, the jack 6 is a 50t hydraulic jack, the connecting plate 51, the vertical plate 54, the diffusion plate 55 and the stop plate 56 are all steel plates with a thickness of 25mm, and the diagonal brace 52 and the transverse brace 53 are 28# channel steel.

Because the installation of the support 5 and the jack 6 is high-altitude operation, a scaffold and a construction platform are firstly built during construction, so that constructors can conveniently stand, and the construction safety is ensured. The arrangement direction of the jacks 6 is determined according to the deviation rectifying direction of the frame 3 and is arranged clockwise or anticlockwise.

And S4, pushing the frame 3 through the jack 6 until the frame 3 rotates in place.

Rotate frame 3, drive the equipment fixing hole center on the second floor platform and just change, make the straightness that hangs down of pushing ram central line and pushing ram track central line satisfy standard requirements, for example the standard requirement is: 0.1/1000. In order to reduce the weight of the upper part of the frame 3 and reduce the load required by the jack 6 for pushing the frame 3, before pushing, unnecessary coke pushing devices 9 on the frame 3 can be hoisted and taken down firstly, and then pushing is carried out; of course, the pushing deviation correction can also be directly carried out. When pushing is carried out, the moving position of the frame 3 is observed in real time by an instrument.

And S5, installing and fixing the frame 3 and the upright post 2.

After the frame 3 rotates in place, the frame 3 and the upright post 2 are fixed through the fixing bolt. To the bolt hole that needs the reaming on the frame 3, fix through the bolt after carrying out the reaming to the bolt hole of frame 3 to guarantee that equipment accords with the drawing installation requirement. And if the reaming range exceeds the equipment bottom plate, welding a steel plate with the same thickness or larger thickness on the edge of the equipment bottom plate in a repair mode to make up the influence of reaming on the equipment bottom plate. Reaming is performed in a cutting manner. For the hole-expanded part, a backing plate is preferably added, and the backing plate, the bolt and the periphery of the bolt are fully welded to ensure the strength of the hole-expanded part; meanwhile, the paint is coated, so that the corrosion risk is reduced and the appearance quality is improved.

Claims

1. The in-place deviation rectifying method of the coke pushing equipment is characterized by comprising the following steps: the method comprises the following steps:

s1, wheels (1) of a coke pusher are positioned on a steel rail (7), after a walking device of the coke pusher is installed to be qualified, baffles (8) are respectively fixedly arranged on the front side and the rear side of the wheels (1) along the direction of the steel rail (7), one side of each baffle (8) in contact with the corresponding wheel (1) is arc-shaped and is matched with the outer diameter of the corresponding wheel (1), and the position, far away from the corresponding wheel (1), of each baffle (8) is welded and fixed with the corresponding steel rail (7);

s2, four upright posts (2) of the coke pusher are arranged, the tops of the four upright posts (2) are provided with a frame (3) consisting of a front beam, a rear beam and a side beam, so that the verticality of the upright posts (2) of the coke pusher meets the specification requirement, the upright posts (2) are fixedly connected with a traveling device, and the upright posts (2) are connected through connecting beams (4) to form an integral structure;

s3, arranging supports (5) on the outer sides of the tops of the columns (2), mounting jacks (6) on the supports (5), enabling the jacking directions of the jacks (6) to be horizontal and opposite to the frame (3), and arranging the jacking directions of the jacks (6) clockwise or anticlockwise;

s4, pushing the frame (3) through the jack (6) until the frame (3) rotates in place;

and S5, installing and fixing the frame (3) and the upright post (2).

2. The method for correcting the position of the coke pushing equipment in the process of claim 1, which comprises the following steps: in S1, the baffle (8) is a steel plate with the thickness of 25 mm.

3. The method for correcting the deviation of the coke pushing equipment in position as claimed in claim 1, wherein: in S2, the connecting beam (4) is a 28# channel steel.

4. The method for correcting the deviation of the coke pushing equipment in position as claimed in claim 1, wherein: and in the S3, firstly, a scaffold and a construction platform are erected, and then a support (5) and an installation jack (6) are arranged.

5. The method for correcting the deviation of the coke pushing equipment in position as claimed in claim 4, wherein: in S3, a connecting plate (51) is fixedly arranged on the outer side of the stand column (2), an inclined strut (52) and a transverse strut (53) are arranged on the connecting plate (51), the inclined strut (52) and the transverse strut (53) form a triangular support frame, a vertical plate (54) is fixedly arranged on the upper portion of the triangular support frame, a jack (6) is installed on one side of the vertical plate (54), a diffusion plate (55) is arranged at the jacking end of the jack (6) or the diffusion plate (55) is arranged at the position, corresponding to the jacking end, of the frame (3), and a stop plate (56) or a pull plate is arranged between the vertical plate (54) and the triangular support frame.

6. The method for correcting the deviation of the coke pushing equipment in position as claimed in claim 5, wherein: in S3, the jack (6) is a 50t hydraulic jack, the connecting plate (51), the vertical plate (54), the diffusion plate (55) and the stop plate (56) are all steel plates with the thickness of 25mm, and the inclined stay bar (52) and the transverse stay bar (53) are 28# channel steel.

7. The method for correcting the position of the coke pushing equipment according to any one of claims 1 to 6, wherein: in S5, the frame (3) and the upright post (2) are fixed through bolts; and for the bolt holes needing to be reamed in the frame (3), the bolt holes in the frame (3) are reamed and then fixed through bolts.

8. The method for correcting the deviation of the coke pushing equipment in position as claimed in claim 7, wherein: and S5, the reaming range exceeds that of the equipment bottom plate, and a steel plate with the thickness not less than that of the bottom plate is subjected to repair welding at the edge of the equipment bottom plate.

9. The method for correcting the deviation of the coke pushing equipment in position as claimed in claim 7, wherein: and S5, adding a base plate to the hole expansion part, fully welding the base plate, the bolt and the periphery of the bolt, and coating paint.