CN109837368B - Device and method for replacing radiant tube - Google Patents
Device and method for replacing radiant tube Download PDFInfo
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- CN109837368B CN109837368B CN201711228435.1A CN201711228435A CN109837368B CN 109837368 B CN109837368 B CN 109837368B CN 201711228435 A CN201711228435 A CN 201711228435A CN 109837368 B CN109837368 B CN 109837368B
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- hanging beam
- hearth
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Abstract
The invention provides a device and a method for replacing a radiant tube, wherein the device for replacing the radiant tube comprises a hanging beam connected with a crane, a clamping mechanism and a base capable of being positioned on a hearth, the clamping mechanism comprises a main body frame, a back plate connected with the main body frame, a connecting piece fixed on the back plate, a plug jack installed in the main body frame and a top plate fixedly arranged at the end part of a piston rod in the plug jack, the hanging beam and the main body frame as well as the base and the main body frame are detachably connected, the connecting piece is detachably connected with the radiant tube, and the top plate is matched with the hearth. This application is when changing the radiant tube, acts on furnace through the plug jack, can easily overcome the great frictional force that produces when radiant tube business turn over furnace, and the plug operation when the radiant tube business turn over furnace of being convenient for has greatly improved the efficiency of construction and the construction security of changing the radiant tube.
Description
Technical Field
The invention relates to the field of radiant tube replacement, in particular to a device and a method for replacing a radiant tube.
Background
In each domestic large steel mill, units for continuous annealing, hot galvanizing and the like are arranged, a continuous annealing furnace is arranged in the process section of the units, and the furnace area can carry out heat treatment on the strip steel in the furnace so as to improve the performance of the strip steel and meet the product requirements. The continuous annealing furnaces of the units are generally of vertical structures, in order to meet the requirements of ensuring the production speed and meeting the process requirements, strip steel in the furnaces is generally hundreds of meters, and most furnace areas adopt radiation pipes to heat the strip steel; as shown in fig. 1, the radiant tubes 100 installed in the furnace 200 are uniformly arranged on both sides of the strip along the running path of the strip, and several hundreds of radiant tubes 100 are often arranged in one production line. The radiant tube transfers heat to the hearth through combustible gas such as internal combustion gas and natural gas, and for ensuring the sealing property and the strength of the connection between the radiant tube and the hearth, the fit clearance between the radiant tube and the hearth is smaller and the radiant tube and the hearth are connected in a welding mode.
Because long-term continuous operation, the radiant tube needs regularly to be changed, because the radiant tube inserts in the furnace, can't use the interior driving of factory directly hoist, need with the help of special hoist will hoist. As shown in fig. 2, the special lifting device mainly comprises a radiant tube lifting device 300 and a crane hook 400, the lower end of the radiant tube lifting device 300 is connected to the radiant tube 100, the upper end of the radiant tube lifting device 300 is connected to the crane hook 400, and the crane hook 400 can be driven to move by a crane, so as to lift the radiant tube 100. However, due to the fact that a plurality of devices are arranged in a furnace area, the fit clearance between the radiant tube and the hearth is small, and the radiant tube is prone to deformation after high temperature action, so that the radiant tube is difficult to insert and extract in and out of the hearth (generally, a chain hoist is hung on a nearby steel structure to forcibly extract the radiant tube), time consumption is long, the single radiant tube inserting and extracting operation needs nearly 3 hours, and the construction efficiency of radiant tube replacement is greatly reduced. In addition, special lifting device is generally longer, and there is great counter weight at the rear portion, can not directly place on less maintenance platform, so whole plug operation all need use the driving to hoist, and it is very serious to the driving occupy in the factory, causes very big influence to other projects that need use the driving hoist in the factory building, often causes personnel to nest the worker.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide a radiant tube replacement device that facilitates insertion and removal of radiant tubes into and out of a furnace.
In order to achieve the purpose, the invention provides a radiant tube replacing device which comprises a hanging beam connected with a crane, a clamping mechanism and a base capable of being positioned on a hearth, wherein the clamping mechanism comprises a main body frame, a back plate connected with the main body frame, a connecting piece fixed on the back plate, a plug jack installed in the main body frame and a top plate fixedly arranged at the end part of a piston rod in the plug jack, the hanging beam is detachably connected with the main body frame of the clamping mechanism, the base is detachably connected with the main body frame of the clamping mechanism, the connecting piece is used for detachably connecting with a radiant tube, and the top plate is used for being matched with the hearth.
Further, fixture still includes swing jack and the main shaft that is located backplate both ends department respectively, the main shaft is articulated mutually with the backplate, the swing jack is installed in main body frame, the last connection ear that has set firmly of main body frame, the main shaft liftable ground is supported in the connection ear, the tip of piston rod is articulated mutually with the backplate in the swing jack, the flexible direction of piston rod is mutually perpendicular with the axial of main shaft in the swing jack.
Further, fixture is still including installing the lift jack in main body frame, seted up in the engaging lug with main shaft matched with through-hole, the through-hole is the waist shape hole that extends from top to bottom, the tip of piston rod can stretch out and draw back from top to bottom in the lift jack and fixed mutually with the main shaft.
Further, install the balancing weight on the hanging beam, the balancing weight can remove along the length direction of hanging beam, balancing weight and fixture establish respectively at the both ends of hanging beam along the length direction of hanging beam.
Preferably, the hanging beam is provided with a rotatable driving screw rod, a driving nut matched with the driving screw rod and a rotatable hand wheel, the hand wheel is connected with the driving screw rod and used for enabling the driving screw rod to rotate, the driving screw rod extends along the length direction of the hanging beam, and the driving nut is fixed with the balancing weight; and the counterweight block is also provided with a first movable wheel matched with the hanging beam.
Preferably, the hanging beam and the main body frame, and the base and the main body frame are detachably connected by bolts.
Further, the base includes travelling car and track, orbital extending direction is unanimous with the flexible direction of piston rod in the plug jack, the travelling car includes the connection support body of dismantling the connection with main body frame and installs the second removal wheel at connection support body lower extreme, the second removes wheel and track and cooperatees and can follow orbital extending direction and remove.
Preferably, the rail is provided with a plurality of positioning holes, positioning bolts are allowed to pass through the positioning holes, and the positioning bolts are used for positioning the base on the hearth.
Preferably, the connecting piece is a connecting flange and is detachably connected with the radiant tube through bolts.
The application also provides a method for replacing the radiant tube, which uses the device for replacing the radiant tube, and comprises the following steps:
s1, connecting the hanging beam with the main body frame and the base with the main body frame, connecting the hanging beam with a crane, and hoisting the hanging beam, the clamping mechanism and the base to the position of the radiant tube to be replaced by the crane;
s2, positioning the base on the hearth, removing the connection between the hanging beam and the main body frame, lifting by a crane to remove the hanging beam, and connecting the connecting piece with the old radiant tube in the hearth;
s3, the plugging jack acts, a piston rod of the plugging jack extends out, the top plate acts on the hearth, the old radiant tube is ejected out, and the old radiant tube is pulled out of the hearth;
s4, hoisting the hoisting beam by a crane, connecting the hoisting beam with the main body frame, releasing the connection between the base and the main body frame, and hoisting the hoisting beam, the clamping mechanism and the old radiant tube to a stacking place by the crane;
s5, removing the connection between the connecting piece and the old radiant tube, connecting the connecting piece with the new radiant tube, and hoisting the hanging beam, the clamping mechanism and the new radiant tube to a radiant tube installation position by the crane;
s6, connecting the main body frame with the base, removing the connection between the hanging beam and the main body frame, and lifting by the crane to remove the hanging beam;
s7, clamping the top plate in a positioning groove in the hearth wall of the hearth, when a new radiant tube enters a matching surface with the hearth, moving the plugging jack and retracting a piston rod of the plugging jack to enable the top plate to act on the hearth, inserting the new radiant tube into the hearth, installing the new radiant tube, and releasing the connection between the connecting piece and the new radiant tube;
s8, hoisting the hoisting beam by a crane, connecting the hoisting beam with the main body frame, removing the positioning of the base and the hearth, and hoisting the hoisting beam, the clamping mechanism and the base to the next radiant tube position to be replaced or a placing place by the crane.
As described above, the apparatus and method for replacing a radiant tube according to the present invention have the following advantageous effects:
this application is when changing the radiant tube, acts on furnace through the plug jack, can easily overcome the great frictional force that produces when radiant tube business turn over furnace, and the plug operation when the radiant tube business turn over furnace of being convenient for has greatly improved the efficiency of construction and the construction security of changing the radiant tube.
Drawings
FIG. 1 is a schematic view of a radiant tube arrangement in a furnace according to the prior art.
Fig. 2 is a schematic structural diagram of a radiant tube hoisting device in the prior art.
Fig. 3 is a schematic structural view of a device for replacing a radiant tube according to the present application.
Fig. 4 is a schematic structural diagram of the clamping mechanism in fig. 3.
Fig. 5 is a view showing a state of use of the device for replacing a radiant tube according to the present application.
Description of the element reference numerals
10 hanging beam
101 lifting lug
20 clamping mechanism
201 main body frame
202 back plate
203 connecting piece
204 plug jack
205 top plate
206 swinging jack
207 spindle
208 connecting ear
209 lifting jack
210 through hole
211 ear plate
30 base
301 track
302 connecting rack body
303 second moving wheel
40 balance weight
401 first moving wheel
50 driving screw rod
60 hand wheel
70 accommodating space
80 radiant tube
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
It should be understood that the structures, proportions, and dimensions shown in the drawings and described herein are for illustrative purposes only and are not intended to limit the scope of the present invention, which is defined by the claims, but rather by the claims. In addition, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description only and are not intended to limit the scope of the present invention, and changes or modifications of the relative relationship thereof may be made without substantial technical changes and modifications.
As shown in fig. 3 to 5, the present invention provides a radiant tube replacing device, which includes a hanging beam 10 for connecting with a crane, a clamping mechanism 20, and a base 30 capable of being positioned on a furnace, wherein the clamping mechanism 20 includes a main frame 201, a back plate 202 connected to the right side of the main frame 201, a connecting member 203 fixed on the right end surface of the back plate 202, a plugging jack 204 installed in the main frame 201, and a top plate 205 fixed on the end of a piston rod in the plugging jack 204, the hanging beam 10 and the base 30 both extend in the left-right direction, the lower end surface of the right side of the hanging beam 10 is detachably connected with the upper end surface of the main frame 201, and the upper end surface of the left side of the base 30 is detachably connected with the lower end surface of the main frame 201, the right end of the connecting member 203 is detachably connected with a radiant tube 80, and the top plate 205. In this embodiment, the connecting members 203 are arranged up and down, the plug jacks 204 are arranged front and back, the piston rods of the plug jacks 204 can extend and retract in the left-right direction, and the front and back sides of the back plate 202 are provided with through grooves for the piston rods of the plug jacks 204 to pass through. The right side of the clamping mechanism 20 and the upper side of the base 30 jointly form a containing space 70 for containing the radiant tube 80; moreover, after the connecting member 203 is connected to the radiant tube 80, if the piston rods of the plugging jacks 204 are in a state of extending rightward, the piston rods of the two plugging jacks 204 are respectively located at the front and rear sides of the radiant tube 80 in the accommodating space 70. The upper end of the hanging beam 10 is provided with two lifting lugs 101 which are arranged left and right and used for being connected with a crane, and the crane can be a traveling crane. Meanwhile, when the hanging beam 10 is connected with the clamping mechanism 20, the requirement of hoisting the radiant tube 80 can be met; when the hanging beam 10 is separated from the clamping mechanism 20, the requirement of independent hoisting of the hanging beam 10 can be realized; thus, when the radiant tube 80 enters or exits the hearth, the connection between the hanging beam 10 and the clamping mechanism 20 can be released, and the hanging beam 10 is placed in a nearby place, so that the occupied time of a travelling crane can be reduced.
The present application also provides a method for replacing a radiant tube, as shown in fig. 3 to 5, using the device for replacing a radiant tube as described above, the method for replacing a radiant tube comprising the steps of:
s1, connecting the hanging beam 10 with the main body frame 201 and connecting the base 30 with the main body frame 201, connecting the hanging beam 10 with a crane, and hoisting the hanging beam 10, the clamping mechanism 20 and the base 30 to a radiant tube to be replaced by the crane;
s2, positioning the base 30 on the hearth, removing the connection between the hanging beam 10 and the main body frame 201, lifting by a crane to remove the hanging beam 10, and connecting the connecting piece 203 with the old radiant tube in the hearth;
s3, the plugging jack 204 acts, and a piston rod of the plugging jack 204 extends rightwards, so that the top plate 205 acts on the hearth, the old radiant tube is ejected out under the action of the plugging jack 204, and the old radiant tube is pulled out of the hearth;
s4, hoisting the hanging beam 10 by a crane, connecting the hanging beam 10 with the main body frame 201, releasing the connection between the base 30 and the main body frame 201, and hoisting the hanging beam 10, the clamping mechanism 20 and the old radiant tube to a stacking place by the crane;
s5, removing the connection between the connecting piece 203 and the old radiant tube, connecting the connecting piece 203 with the new radiant tube, and hoisting the hanging beam 10, the clamping mechanism 20 and the new radiant tube to a radiant tube installation position by the crane;
s6, connecting the main body frame 201 with the base 30, removing the connection between the hanging beam 10 and the main body frame 201, and lifting by a crane to remove the hanging beam 10;
s7, the piston rod of the plug jack 204 is in a state of extending rightward; when a new radiant tube enters a matching surface with the hearth, the top plate 205 is clamped in the positioning groove of the hearth wall of the hearth, the plugging jack 204 acts, the piston rod of the plugging jack 204 retracts leftwards, the top plate 205 acts on the hearth under the action of the plugging jack 204, and then the new radiant tube is inserted into the hearth; then installing a new radiant tube and disconnecting the connector 203 from the new radiant tube
S8, hoisting the hanging beam 10 by a crane, connecting the hanging beam 10 with the main body frame 201, removing the positioning of the base 30 and the hearth, and hoisting the hanging beam 10, the clamping mechanism 20 and the base 30 to the next radiant tube position or placing place to be replaced by the crane. Thus, the replacement operation of one radiant tube is completed.
When the radiant tube replacing device and the radiant tube replacing method are used, the plugging jack 204 acts on the hearth when the radiant tube is replaced, so that the large resistance generated by matching the radiant tube 80 with the hearth when the radiant tube 80 enters or exits the hearth can be easily overcome, the plugging operation of the radiant tube 80 entering or exiting the hearth is facilitated, and the construction efficiency and the construction safety of replacing the radiant tube 80 are greatly improved.
Preferably, as shown in fig. 3 and 4, the connecting member 203 is a connecting flange for detachably connecting with the radiant tube 80 through bolts, so that a plurality of bolt holes penetrating from left to right are formed at the right end of the connecting flange, and the size of the connecting flange is the same as that of the flange at the end of the radiant tube 80 to be replaced. The hanging beam 10 and the main body frame 201, and the base 30 and the main body frame 201 are detachably connected by bolts, so that a plurality of bolt holes penetrating up and down are formed on the lower end surface of the right side of the hanging beam 10, the upper end surface and the lower end surface of the main body frame 201 in the clamping mechanism 20, and the upper end surface of the left side of the base 30 (i.e., a connecting frame body 302 described below), so that the hanging beam 10 and the clamping mechanism 20, and the clamping mechanism 20 and the base 30 can be conveniently connected or disconnected.
In addition, the base 30 includes a moving cart and a rail 301 extending left and right, so that the extending direction of the rail 301 is the same as the extending and retracting direction of the piston rod in the plugging jack 204, the moving cart includes a connecting frame body 302 detachably connected to the main body frame 201, and a second moving wheel 303 mounted at the lower end of the connecting frame body 302, and the second moving wheel 303 is engaged with the rail 301 and can move along the extending direction of the rail 301. A plurality of positioning holes which are vertically through are formed in the rail 301, and positioning bolts are allowed to pass through the positioning holes and are used for positioning the base 30 on the hearth. The movable trolley can travel within the length range of the track 301, so that the clamping mechanism 20 and the radiant tube can travel within the length range of the track 301, and the radiant tube needs to be pulled out and inserted when being replaced.
Furthermore, the height and the angle of the connecting flange in the up-down direction can be finely adjusted, so that accurate positioning between the connecting flange and the radiant tubes at different positions is met. The specific adjusting structure is as follows: as shown in fig. 3 and 4, the clamping mechanism 20 further includes a main shaft 207 located at the upper left end of the back plate 202 and extending forward and backward, a swing jack 206 located at the lower left end of the back plate 202, and two lifting jacks 209 located at the left side of the back plate 202 and located below the front and rear ends of the main shaft 207, respectively, wherein the main shaft 207 is hinged to the back plate 202, so that the back plate 202 can rotate relative to the main shaft 207; the swing jack 206 and the lifting jack 209 are both mounted on the main body frame 201, two connecting lugs 208 which are arranged in a front-back manner and are located on the left side of the back plate 202 are fixedly arranged on the right end face of the main body frame 201, a through hole 210 matched with the main shaft 207 is formed in each connecting lug 208, the main shaft 207 is supported in each connecting lug 208 in a lifting manner, the right end of a piston rod in the swing jack 206 is hinged with the back plate 202, and the piston rod in the swing jack 206 can stretch out and draw back in the left-right direction; the through hole 210 is a waist-shaped hole extending up and down, a piston rod in the lifting jack 209 can stretch out and draw back up and down, and the upper end of the piston rod in the lifting jack 209 is fixed with the main shaft 207. When the piston rod of the swing jack 206 extends and retracts in the left-right direction, the back plate 202 can be driven to rotate around the main shaft 207, that is, the driving connecting piece 203 rotates around the main shaft 207, so that the clamping mechanism 20 can be adjusted in the angle direction; when the piston rod of the lifting jack 209 extends and retracts in the up-down direction, the back plate 202 and the main shaft 207 can be driven to move up or down together within the length range of the slotted hole, that is, the connecting member 203 is driven to move up or down, so that the clamping mechanism 20 can be adjusted in the height direction, and the clamping mechanism 20 and the radiant tubes 80 at different positions can be accurately positioned. Preferably, the plugging jack 204, the swinging jack 206 and the lifting jack 209 are all hydraulic jacks. Two ear plates 211 which are arranged in a front-back manner are fixedly arranged on the left end surface of the back plate 202, and the ear plates 211 are rotatably connected to the main shaft 207, so that the back plate 202 is hinged to the main shaft 207.
Further, the lifting beam 10 may integrally hoist the clamping mechanism 20 and the base 30 to a desired position, may hoist the clamping mechanism 20 carrying the radiant tube 80 to a desired position, and may be separately hoisted to a desired position. In order to meet the adjustment of the center of gravity under different hoisting conditions, as shown in fig. 3 to 5, a counterweight 40 is mounted on the hoisting beam 10, the counterweight 40 can move along the length direction of the hoisting beam 10, and the counterweight 40 and the clamping mechanism 20 are respectively disposed at the left and right ends of the hoisting beam 10 along the length direction of the hoisting beam 10. The structure for driving the counterweight block 40 to move left and right is as follows: the hanging beam 10 is provided with a rotatable driving screw rod 50, a driving nut matched with the driving screw rod 50 and a rotatable hand wheel 60, the hand wheel 60 is connected with the driving screw rod 50 and used for enabling the driving screw rod 50 to rotate, the driving screw rod 50 extends along the length direction of the hanging beam 10, and the driving nut is fixed with the balancing weight 40; the counterweight block 40 is further provided with a first moving wheel 401 matched with the hanging beam 10. When the constructor hands the hand wheel 60, the hand wheel 60 drives the driving screw rod 50 to rotate, so that the driving nut moves leftwards or rightwards along the axial direction of the driving screw rod 50, the left and right positions of the balancing weight 40 on the hanging beam 10 are adjusted, and the gravity center adjustment is realized.
The process for realizing the replacement of the radiant tube by using the device for replacing the radiant tube specifically comprises the following steps: 1. assembling the hanging beam 10, the clamping mechanism 20 and the base 30, and adjusting the balancing weight 40; 2. integrally hoisting the hanging beam 10, the clamping mechanism 20 and the base 30 to a position where the radiant tube needs to be replaced by using a travelling crane, wherein the burner and other accessory facilities are removed, and the welding seam between the radiant tube and the hearth is cut off; 3. positioning the base 30 and the hearth by using a positioning screw, and adjusting the balancing weight 40 to facilitate the independent hoisting of the hoisting beam 10; the connection between the hanging beam 10 and the clamping mechanism 20 is released; 4. hoisting the hoisting beam 10 to a nearby site by using a crane, and simultaneously connecting a connecting flange in the clamping mechanism 20 with an old radiant tube; 5. the plugging jack 204 extends rightwards and acts on the hearth, so that the old radiant tube is ejected out and pulled out of the hearth as much as possible; 6. the crane lifts the hanging beam 10 and connects the hanging beam 10 with the clamping mechanism 20; 7. the unclamping mechanism 20 is connected with the base 30, the balancing weight 40 is adjusted, and the hanging beam 10, the clamping mechanism 20 and the old radiant tube are hung to a stacking site by using a crane; 8. the connection between the connecting flange in the clamping mechanism 20 and the old radiant tube is released, and the new radiant tube is connected with the connecting flange in the clamping mechanism 20; 9. the crane is used for hoisting the hanging beam 10, the clamping mechanism 20 and the new radiant tube to an installation position, and the clamping mechanism 20 and the base 30 are connected; 10. the connection between the hanging beam 10 and the clamping mechanism 20 is released, and a new radiant tube is inserted into the hearth; when a new radiant tube enters the surface matched with the hearth, the new radiant tube is jacked in by the plugging jack 204 acting on the hearth; 11. after the new radiant tube is in place, the radiant tube is installed and fixed, the position of the clamping mechanism 20 is adjusted, the crane lifts the hanging beam 10, and the hanging beam 10 is connected to the clamping mechanism 20; 12. and adjusting the balancing weight 40 to integrally hoist the device for replacing the radiant tube to the next replacement position or place.
In summary, the device and the method for replacing the radiant tube have the following advantages:
1. when the radiant tube is replaced, the plugging jack 204 on the device for replacing the radiant tube can easily overcome the large friction force when the radiant tube enters and exits the hearth, and the action is stable and reliable, so that the construction efficiency and the safety of the radiant tube entering and exiting the hearth are greatly improved when the radiant tube is replaced.
2. The radiant tube is changed and is used the device and be split type structure, smaller size base 30 and fixture 20 can directly place on overhauing the platform, remove the hanging beam 10 and fixture 20 and be connected the back, can directly hang hanging beam 10 alone to placing the place, and fixture 20 can realize the plug work of radiant tube business turn over furnace, during this plug work, the driving can carry out the hoist and mount operation of other projects, thereby reduce the occupation of driving when the radiant tube is changed by a wide margin, reduce the nest worker that other projects caused owing to waiting for the driving.
3. The device for replacing the radiant tube is simple and reliable in structural form, can be popularized in unit radiant tube replacement projects such as continuous annealing, hot galvanizing and the like, and has great promotion significance for improving the labor efficiency of radiant tube replacement, reducing the personnel investment and consumption and ensuring the quality and safety of project implementation, so that the popularization and application prospect is very good.
Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (7)
1. A radiant tube is changed and is used device which characterized in that: the furnace hearth furnace lifting device comprises a hanging beam (10) used for being connected with a crane, a clamping mechanism (20) and a base (30) capable of being positioned on a hearth, wherein the clamping mechanism (20) comprises a main body frame (201), a back plate (202) connected with the main body frame (201), a connecting piece (203) fixed on the back plate (202), a plugging jack (204) installed in the main body frame (201), a top plate (205) fixedly arranged at the end part of a piston rod in the plugging jack (204), a swinging jack (206) and a main shaft (207) respectively arranged at two ends of the back plate (202) and a lifting jack (209) installed in the main body frame (201), the hanging beam (10) is detachably connected with the main body frame (201) of the clamping mechanism (20) and the base (30) is detachably connected with the main body frame (201) of the clamping mechanism (20), and the connecting piece (203) is detachably connected with a radiation pipe (80), the top plate (205) is used for being matched with a hearth, the main shaft (207) is hinged to the back plate (202), the swing jack (206) is installed in the main body frame (201), a connecting lug part (208) is fixedly arranged on the main body frame (201), a through hole (210) matched with the main shaft (207) is formed in the connecting lug part (208), the through hole (210) is a waist-shaped hole extending up and down, the main shaft (207) is supported in the through hole (210) of the connecting lug part (208) in a lifting manner, the end part of a piston rod in the swing jack (206) is hinged to the back plate (202), the telescopic direction of the piston rod in the swing jack (206) is perpendicular to the axial direction of the main shaft (207), and the end part of the piston rod in the lifting jack (209) can be stretched up and down and is fixed to the main shaft (207); when a piston rod of the swing jack (206) stretches, the back plate (202) is driven to rotate around a main shaft (207), and the angle of the connecting piece (203) is adjusted; when a piston rod of the lifting jack (209) stretches, the back plate (202) and the main shaft (207) are driven to move up or down together within the length range of the waist-shaped hole, and the height of the connecting piece (203) is adjusted; base (30) include travelling car and track (301), the extending direction of track (301) is unanimous with the flexible direction of piston rod in plug jack (204), the travelling car includes connecting support body (302) of dismantling the connection with main body frame (201) and installs second removal wheel (303) at connecting support body (302) lower extreme, second removal wheel (303) and track (301) cooperate and can follow the extending direction removal of track (301).
2. A radiant tube changing device as defined in claim 1, wherein: install balancing weight (40) on hanging beam (10), balancing weight (40) can move along the length direction of hanging beam (10), balancing weight (40) and fixture (20) are established respectively at the both ends of hanging beam (10) along the length direction of hanging beam (10).
3. A radiant tube changing device as defined in claim 2, wherein: the lifting beam (10) is provided with a rotatable driving screw rod (50), a driving nut matched with the driving screw rod (50) and a rotatable hand wheel (60), the hand wheel (60) is connected with the driving screw rod (50) and used for enabling the driving screw rod (50) to rotate, the driving screw rod (50) extends along the length direction of the lifting beam (10), and the driving nut is fixed with the balancing weight (40); and a first moving wheel (401) matched with the hanging beam (10) is further installed on the balancing weight (40).
4. A radiant tube changing device as defined in claim 1, wherein: the hanging beam (10) and the main body frame (201) as well as the base (30) and the main body frame (201) are detachably connected through bolts.
5. A radiant tube changing device as defined in claim 1, wherein: the rail (301) is provided with a plurality of positioning holes, positioning bolts are allowed to pass through the positioning holes, and the positioning bolts are used for positioning the base (30) on the hearth.
6. A radiant tube changing device as defined in claim 1, wherein: the connecting piece (203) is a connecting flange and is detachably connected with the radiant tube (80) through bolts.
7. A method for replacing a radiant tube is characterized in that: use of a radiant tube replacement device according to any of claims 1 to 6, said radiant tube replacement method comprising the steps of:
s1, connecting the hanging beam (10) with the main body frame (201) and connecting the base (30) with the main body frame (201), connecting the hanging beam (10) with a crane, and hoisting the hanging beam (10), the clamping mechanism (20) and the base (30) to a radiant tube to be replaced by the crane;
s2, positioning the base (30) on the hearth, removing the connection between the hanging beam (10) and the main body frame (201), lifting the hanging beam (10) by a crane, and connecting the connecting piece (203) with the old radiant tube in the hearth;
s3, the plugging jack (204) acts, and a piston rod of the plugging jack (204) extends out, so that the top plate (205) acts on the hearth, ejects the old radiant tube, and pulls the old radiant tube out of the hearth;
s4, hoisting the hoisting beam (10) by a crane, connecting the hoisting beam (10) with the main body frame (201), releasing the connection between the base (30) and the main body frame (201), and hoisting the hoisting beam (10), the clamping mechanism (20) and the old radiant tube to a stacking place by the crane;
s5, the connection between the connecting piece (203) and the old radiant tube is removed, the connecting piece (203) is connected with the new radiant tube, and the crane hoists the hanging beam (10), the clamping mechanism (20) and the new radiant tube to the installation position of the radiant tube;
s6, connecting the main body frame (201) with the base (30), removing the connection between the hanging beam (10) and the main body frame (201), and lifting by the crane to remove the hanging beam (10);
s7, the top plate (205) is clamped in a positioning groove in the hearth wall of the hearth, when a new radiant tube enters a matching surface with the hearth, the plug jack (204) acts, a piston rod of the plug jack (204) retracts, the top plate (205) acts on the hearth, the new radiant tube is inserted into the hearth, the new radiant tube is installed, and the connection between the connecting piece (203) and the new radiant tube is released;
s8, hoisting the hanging beam (10) by a crane, connecting the hanging beam (10) with the main body frame (201), removing the positioning of the base (30) and the hearth, and hoisting the hanging beam (10), the clamping mechanism (20) and the base (30) by the crane to the next radiant tube position or placing place to be replaced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711228435.1A CN109837368B (en) | 2017-11-29 | 2017-11-29 | Device and method for replacing radiant tube |
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| CN201711228435.1A CN109837368B (en) | 2017-11-29 | 2017-11-29 | Device and method for replacing radiant tube |
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| CN109837368B true CN109837368B (en) | 2021-02-05 |
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| CN114507773A (en) * | 2020-11-15 | 2022-05-17 | 上海梅山钢铁股份有限公司 | Online quick replacement method for W-shaped radiant tube of continuous annealing furnace |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2113981U (en) * | 1992-02-02 | 1992-08-26 | 冶金工业部攀枝花钢铁公司 | Disassembling device for changing blast furnace cooling plate |
| CN201988905U (en) * | 2011-04-03 | 2011-09-28 | 赤峰中色库博红烨锌业有限公司 | Tool special for detaching multistage centrifugal pump |
| CN102556906A (en) * | 2012-01-18 | 2012-07-11 | 中冶南方(武汉)威仕工业炉有限公司 | Novel hanger for changing radiant tubes |
| CN203320074U (en) * | 2013-04-24 | 2013-12-04 | 中国二十冶集团有限公司 | Transverse moving type mounting device for heating furnace radiant tube |
| CN204150929U (en) * | 2014-10-17 | 2015-02-11 | 莱芜钢铁集团有限公司 | A kind of suspender |
| CN206108708U (en) * | 2016-06-28 | 2017-04-19 | 上海宝冶集团有限公司 | Self -balancing radiant tube installation hoist |
-
2017
- 2017-11-29 CN CN201711228435.1A patent/CN109837368B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2113981U (en) * | 1992-02-02 | 1992-08-26 | 冶金工业部攀枝花钢铁公司 | Disassembling device for changing blast furnace cooling plate |
| CN201988905U (en) * | 2011-04-03 | 2011-09-28 | 赤峰中色库博红烨锌业有限公司 | Tool special for detaching multistage centrifugal pump |
| CN102556906A (en) * | 2012-01-18 | 2012-07-11 | 中冶南方(武汉)威仕工业炉有限公司 | Novel hanger for changing radiant tubes |
| CN203320074U (en) * | 2013-04-24 | 2013-12-04 | 中国二十冶集团有限公司 | Transverse moving type mounting device for heating furnace radiant tube |
| CN204150929U (en) * | 2014-10-17 | 2015-02-11 | 莱芜钢铁集团有限公司 | A kind of suspender |
| CN206108708U (en) * | 2016-06-28 | 2017-04-19 | 上海宝冶集团有限公司 | Self -balancing radiant tube installation hoist |
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| CN109837368A (en) | 2019-06-04 |
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