JP5709622B2 - Renovation method and manufacturing method of walking beam type heating furnace - Google Patents

Description

  The present invention provides a plurality of fixed beams along the furnace length direction on each support member standing on the hearth provided in the furnace, and a moving frame provided below the hearth. A plurality of drive beams along the furnace length direction are provided on each support member protruding above the hearth through the through-hole provided in the hearth, and the moving frame is provided in the walking beam driving means. The present invention relates to a repair method and a manufacturing method of a walking beam heating furnace in which a driving beam provided on the moving frame performs a walking operation by a walking beam driving means supported by a body. In particular, it is possible to easily remove the furnace floor provided with a plurality of fixed beams and the moving frame provided with a plurality of drive beams from the inside of the furnace or to set them in the furnace, thereby greatly reducing the work time. At the same time, it is characterized in that the cost can be reduced.

  Conventionally, pusher type heating furnaces and walking beam type heating furnaces have been used as heating furnaces in which materials to be processed such as steel slabs and steel plates are sequentially moved in the furnace to perform heat treatment.

  Here, in the walking beam type heating furnace, generally, a plurality of fixed beams along the furnace length direction are provided on each support member standing on the hearth provided in the furnace, and A plurality of drive beams along the furnace length direction are provided on each support member protruding above the hearth through a penetrating part provided in the hearth from a moving frame provided below, and the above moving frame is used as a walking beam. The workpiece is supported by a rotating body provided in the driving means, and the walking beam driving means is caused to walk by the walking beam driving means through the rotating body, so that the workpieces are sequentially placed in the furnace. It is supposed to be moved to.

  In such a heating furnace, an existing pusher type heating furnace is changed to a walking beam type heating furnace, or the inside of the walking beam type heating furnace is newly replaced.

  Here, in changing the existing pusher type heating furnace to the walking beam type heating furnace, in the one shown in Patent Document 1, a rail extending in the furnace length direction is installed at an appropriate height position in the furnace. In addition, a moving carriage equipped with a lifting device is set on the rail, and the hearth disassembled in the pusher-type heating furnace is lifted by the lifting device provided on the moving carriage and moved by the moving carriage, and the ceiling of the furnace It is made to discharge out of the furnace through the entrance / exit provided in the. Next, various construction materials such as the above-mentioned moving frame, driving beam, and hearth used for the walking beam type heating furnace were carried into the furnace with a crane through the entrance / exit provided in the ceiling of the furnace, and carried in this way. Various building materials are lifted by the lifting device and transported to a predetermined position by a moving carriage. The building materials thus transported are sequentially assembled to construct a walking beam heating furnace. The moving carriage is carried out of the furnace.

  However, as described above, the operation of installing the rail extending in the furnace length direction at an appropriate height in the furnace is very troublesome, and the construction material is suspended by the lifting device provided on the movable carriage. Because this moving carriage is moved back and forth many times to transport the building material, the working time for building the walking beam heating furnace is very long and the cost is high, and after building the walking beam heating furnace Also, the work of carrying out the above-mentioned rails and moving carriages outside the furnace is troublesome, and there is a problem that the work time becomes longer.

  Moreover, in what is shown by patent document 2, after taking out the construction material in a pusher type heating furnace from the inside of a furnace, various constructions, such as a moving frame used for a walking beam type heating furnace, a driving beam, and a hearth, are put in the furnace. In order to carry the material into the furnace, the construction material is assembled in advance by dividing it into a plurality of blocks outside the furnace, and a rail is laid on the bottom of the furnace, and a traveling carriage with a jack traveling along the rail is arranged. I have to. And each block assembled as described above is carried into the furnace by a crane or the like through the entrance and exit provided in the ceiling part of the furnace, and this block is supported by the jack part provided in the traveling carriage with jack, After transporting to a predetermined position in order by this traveling cart with jack, and connecting the blocks transported in this way to construct a walking beam heating furnace, the above-mentioned rail or jack traveling cart is moved outside the furnace. It is made to carry out.

  However, even in the one shown in Patent Document 2, it is necessary to lay rails at the bottom of the furnace, and in order to lay rails at the bottom of the furnace, the obstacles at the bottom of the furnace are sufficiently removed. In addition, since the block is supported by the jack portion and the traveling carriage with the jack is moved back and forth many times to convey each block, the work time for constructing the walking beam heating furnace becomes very long. In addition, the cost is high, and after the construction of the walking beam type heating furnace, it is troublesome to carry out the above-described rail or jack-equipped traveling cart outside the furnace, which further increases the working time.

Japanese Patent Publication No. 7-52067 JP 2002-180125 A

  An object of the present invention is to solve various problems as described above in the case where the walking beam heating furnace as described above is modified or manufactured, and a plurality of fixed beams are provided. It is easy to take out the furnace floor and moving frame with multiple drive beams from the furnace and set it in the furnace, so that the work time can be greatly reduced and the cost can be reduced. This is a problem.

  In the renovation method of the walking beam type heating furnace according to the present invention, a plurality of fixed beams along the furnace length direction are provided on each support member erected on the hearth provided in the furnace, and the above-mentioned A plurality of drive beams along the furnace length direction are provided on each support member protruding above the hearth through a penetration part provided in the hearth from a moving frame provided below the hearth. Rehabilitation of the walking beam heating furnace in which the frame is supported by a rotating body provided in the walking beam driving means, and the driving beam provided in the moving frame performs a walking operation by the walking beam driving means through the rotating body. In the method, when the hearth provided with the fixed beam and the moving frame provided with the driving beam are taken out of the furnace, the hearth and the moving frame are removed. The furnace heart is connected and integrated, and the hearth is separated from the furnace, the integrated hearth and moving frame are cut to a predetermined length and taken out from the take-out position, and the integrated hearth The moving frame is sequentially guided to the take-out position while rotating the rotating body.

  Here, when the integrated hearth and moving frame are cut to a predetermined length as described above, the hearth and moving frame cut to a predetermined length are not supported by the two rotating bodies. In some cases, an extension frame may be attached to the moving frame supported by the rotating body so that the hearth and the moving frame cut to a predetermined length are supported by two or more rotating bodies. .

  In addition, when the support portion of the moving frame supported by the rotating body is uneven as described above, if the auxiliary member is attached to the recess so that the support portion of the moving frame is flat, it is integrated as described above. When the converted hearth and moving frame are sequentially moved to the take-out position while rotating the rotating body, the integrated hearth and moving frame are moved appropriately without rotating the rotating body. Become so.

  In addition, when taking out the hearth and the moving frame, which are integrated and cut to a predetermined length, from the take-out position, an entrance / exit is opened at the ceiling of the furnace, and is integrated and cut to a predetermined length as described above. The raised hearth and the moving frame can be lifted by the lifting device through the entrance and taken out from the furnace.

  Moreover, in the manufacturing method of the walking beam type heating furnace according to the present invention, a plurality of fixed beams along the furnace length direction are provided on each support member erected on the hearth provided in the furnace, A plurality of drive beams along the furnace length direction are provided on each support member protruding above the hearth through a penetration part provided in the hearth from a moving frame provided below the hearth, The walking beam heating furnace is supported by a rotating body provided in the walking beam driving means, and the driving beam provided in the moving frame performs a walking operation by the walking beam driving means through the rotating body. In this manufacturing method, the hearth and the moving frame having a predetermined length are coupled and integrated, and the integrated hearth and moving frame having the predetermined length are provided in the furnace. The moving frame is introduced into the furnace through the inlet / outlet, and the moving frame is supported by the rotating body provided in the walking beam driving means, and the rotating body is rotated and moved with the integrated hearth of a predetermined length. The frames were moved sequentially in the furnace.

  Here, when the hearth and the moving frame having a predetermined length integrated as described above are not supported by the two rotating bodies, an extension frame is attached to the moving frame supported by the rotating bodies and integrated. The converted hearth and the moving frame can be supported by two or more rotating bodies.

  In addition, when the support part of the moving frame supported by the rotating body has irregularities, if the auxiliary member is attached so that the support part of the moving frame becomes flat, it moves with the integrated hearth as described above. When the frame is moved while rotating the rotating body, the integrated hearth and the moving frame are not shaken, and the frame is appropriately moved by the rotation of the rotating body.

  Further, when the integrated hearth and moving frame of a predetermined length are introduced into the furnace through the entrance / exit provided in the furnace, the entrance / exit is opened at the ceiling of the furnace and integrated as described above. The hearth and the moving frame can be suspended by this lifting / lowering device through this doorway and introduced into the furnace.

  In the repair method of the walking beam type heating furnace in the present invention, when taking out the hearth provided with the fixed beam and the moving frame provided with the drive beam from the inside of the furnace, the integrated hearth and the moving frame, Since the rotating body supporting the moving frame is rotated and moved to the take-out position, rails are laid in the furnace and at the bottom of the furnace as in the past, and the lifting device and traveling carriage provided on the moving carriage The provided jack part holds the integrated hearth and moving frame, eliminating the need to reciprocate the moving carriage and traveling carriage along the rails, and providing multiple fixed beams. This makes it easy to take out the heated hearth and the moving frame with multiple drive beams from the furnace, greatly reducing the work time and cost. It makes it possible to reduce.

  Further, in the method of manufacturing a walking beam type heating furnace according to the present invention, the hearth and the moving frame having a predetermined length are connected and integrated, and the integrated hearth and the moving frame of the predetermined length are integrated. Are introduced into the furnace through the entrance / exit provided in the furnace, the moving frame is supported by the rotating body provided in the walking beam driving means, and the rotating body is rotated while rotating to a predetermined predetermined length. In this case as well, rails are laid in the furnace and at the bottom of the furnace, as in the conventional case, as well as a lifting device and a traveling device provided on the moving carriage. With the jack part provided on the carriage, the integrated hearth and moving frame are held, and it is not necessary to reciprocate the moving carriage and traveling carriage repeatedly along the rails. The work to move the built-in hearth and the moving frame in the furnace one after another can be easily performed, and the work time for manufacturing the walking beam heating furnace can be greatly reduced and the cost is also reduced. Can be reduced.

  Further, in the walking beam type heating furnace repair method and the walking beam type heating furnace manufacturing method in the present invention, as described above, rails are laid in the furnace or at the bottom of the furnace, or a moving carriage provided with a lifting device, Since the traveling carriage with jack is not set on the rail and moved, the fixed beam is provided in the furnace after the furnace floor with the fixed beam and the moving frame with the driving beam are taken out from the furnace. After manufacturing the walking beam type heating furnace by setting the constructed hearth and the moving frame provided with the drive beam, the laid rail, the moving carriage provided with the lifting device described above, and traveling with a jack There is no need to carry the cart out of the furnace, and the working time is further reduced.

It is a schematic cross-sectional explanatory drawing which showed a part of walking beam type heating furnace which concerns on one Embodiment of this invention. It is a schematic longitudinal cross-sectional explanatory drawing of the walking beam type heating furnace in said embodiment. In the walking beam type heating furnace in the above embodiment, it is a schematic cross-sectional explanatory view showing a state where a hearth and a moving frame connected by a connecting member are cut to a predetermined length. In the walking beam type heating furnace in the above embodiment, it is a schematic longitudinal cross-sectional explanatory view showing a state where a hearth connected to a moving frame by a connecting member is cut from the furnace and separated. In the walking beam type heating furnace in the above embodiment, a schematic crossing showing a state in which a block in which the hearth and the moving frame are integrated and having a predetermined length is taken out from an entrance provided in the ceiling of the furnace. It is surface explanatory drawing. In the walking beam type heating furnace in the above embodiment, the block in which the hearth and the moving frame are integrated to have a predetermined length is integrated when the block is taken out from the entrance / exit provided in the ceiling of the furnace. FIG. 6 is a schematic cross-sectional explanatory view showing a state in which an extension frame is attached to an auxiliary member supported by a rotating body or a moving frame when a hearth and a moving frame having a predetermined length are not supported by two rotating bodies. . In the walking beam type heating furnace in the above embodiment, a state in which a block in which the hearth and the moving frame are integrated to have a predetermined length is introduced into the furnace from the entrance / exit provided in the ceiling of the furnace. It is the shown schematic cross-sectional explanatory drawing. In the walking beam type heating furnace in the above embodiment, it is a schematic partial explanatory view showing a first modification example in the case where the moving frame is reciprocated in the vertical direction by the walking beam driving means. In the walking beam type heating furnace in the above-mentioned embodiment, it is a schematic partial explanatory view showing a second modification example when the moving frame is reciprocated in the vertical direction by the walking beam driving means.

  Hereinafter, a repair method and a manufacturing method of a walking beam type heating furnace according to an embodiment of the present invention will be specifically described with reference to the accompanying drawings. In addition, the repair method and manufacturing method of the walking beam type heating furnace which concern on this invention are not limited to what was shown to the following embodiment, In the range which does not change the summary of invention, it can change suitably and can implement.

  In the walking beam type heating furnace in this embodiment, as shown in FIG. 1 and FIG. 2, a furnace floor 10 provided in the furnace 1 is provided with a necessary interval in the furnace length direction and the width direction of the furnace 1, respectively. A plurality of support members 11 are erected, and fixed beams 12 are attached on the respective support members 11 along the furnace length direction so as to extend along the furnace length direction. Thus, the fixed beams 12 along the furnace length direction are attached. A plurality of furnaces 1 are provided in the width direction of the furnace 1 through a required interval.

  Further, a moving frame 20 is provided below the hearth 10, and a plurality of support members 21 are projected from the moving frame 20 through the through portions 13 provided in the hearth 10 to the upper side of the hearth 10. Are respectively provided in the furnace length direction and the width direction of the furnace 1 with a required interval, and the drive beam 22 is mounted on each support member 21 along the furnace length direction so as to be along the furnace length direction. A plurality of drive beams 22 along the furnace length direction are provided between the fixed beams 12 in the width direction of the furnace 1 with a required interval.

  Further, a plurality of reinforcing support portions 23 supported by the rotating body 31 provided in the walking beam driving means 30 are provided in the furnace length direction at a required interval so as to protrude below the moving frame 20. The moving frame 20 is supported by the rotating bodies 31 of the walking beam driving means 30 in the support portions 23.

  Then, the moving beam 20 is reciprocated in the vertical direction and reciprocated in the furnace length direction by the walking beam driving means 30, and the driving beam 22 provided in the moving frame 20 is walked and introduced into the furnace 1. The processed object W is moved in the furnace length direction one after another for heat treatment, the door 3 provided at the take-out port 2 of the furnace 1 is opened, and the heat-treated object W thus taken out is taken out. 2 is taken out.

  Here, in the walking beam driving means 30, when the moving frame 20 is reciprocated in the vertical direction, an eccentric cam 33 that is rotated by a rotating device 32 is provided, and the eccentric cam 33 is used as the rotating body 31. A rotating ring 31 is rotatably mounted on the outer periphery of the rotating ring 31, a support portion 23 provided on the moving frame 20 is supported on the rotating ring 31, and the rotating ring 31 is rotated by the eccentric cam 33 rotated by the rotating device 32. The moving frame 20 is reciprocated in the vertical direction via the.

  In the walking beam driving means 30, when the moving frame 20 is reciprocated in the furnace length direction, a back-and-forth moving cylinder 34 is connected to the end of the moving frame 20 in the furnace length direction. The moving frame 20 is reciprocated in the furnace length direction by the cylinder 34 for use.

  Then, the eccentric cam 33 is rotated by the rotating device 32 as described above, and the moving frame 20 is reciprocated in the vertical direction via the rotating ring 31 mounted on the outer periphery of the eccentric cam 33, and the above-described back-and-forth movement is performed. The moving frame 20 is moved back and forth in the furnace length direction by the cylinder 34, and the moving frame 20 is moved in the feed direction of the workpiece W by the forward / backward moving cylinder 34 together with the eccentric cam 33 lifting the moving frame 20 upward. Thus, the drive beam 22 provided on the moving frame 20 is caused to perform a walking operation so that the workpieces W are sequentially sent.

  Here, in exchanging the hearth 10 provided with the fixed beam 12 and the moving frame 20 provided with the drive beam 22 as described above in the walking beam type heating furnace described above, FIG. As shown in FIG. 4, the hearth 10 is connected to the moving frame 20 at an appropriate position by the connecting member 14, and assists in the concave portion 23 a between the support portions 23 provided to project from the lower portion of the moving frame 20. The member 24 is attached so that the lower end of the moving frame 20 supported by the rotating ring 31 becomes flat. In addition, when attaching the auxiliary member 24 to the recessed part 23a between the support parts 23, the auxiliary member 24 can be welded between the support parts 23, or can be attached with a bolt or the like.

  At the both ends in the width direction of the furnace 1, the hearth 10 is cut and separated from the furnace 1, and the hearth 10 and the moving frame 20 connected by the connecting member 14 as described above have a predetermined length. The furnace floor 10 and the moving frame 20 connected by the connecting member 14 are separated into blocks B having a predetermined length, and the above-described back-and-forth moving cylinder 34 is cut. Is separated from the moving frame 20.

  Next, as shown in FIG. 5, an entrance / exit 5 having an appropriate size for taking out the block B is opened in the ceiling portion 4 of the furnace 1, and the hearth 10 and the moving frame 20 are integrated as described above. The block B having a predetermined length is lifted by a lifting / lowering device 40 such as a crane provided above the furnace 1 and taken out from the inside of the furnace 1 through the entrance / exit 5.

  Further, the hearth 10 and the moving frame 20 connected and integrated by the connecting member 14 are pulled by the winch 41, and the auxiliary member 24 is attached as described above to support the lower end of the moving frame 20 that has become flat. While rotating the rotary ring 31, the rotary ring 31 is guided to the take-out position below the entrance / exit 5 opened in the ceiling portion 4.

  Further, the hearth 10 and the moving frame 20 integrated by the connecting member 14 thus guided to the take-out position are cut at an appropriate position, and the hearth 10 and the moving frame 20 are integrated to have a predetermined length. The block B is separated, and the block B is lifted by the lifting / lowering device 40 such as a crane provided above the furnace 1 as described above, and taken out from the inside of the furnace 1 through the entrance / exit 5. To.

  Then, such an operation is repeatedly performed, and the hearth 10 and the moving frame 20 connected and integrated by the connecting member 14 are all made into the block B and taken out from the furnace 1.

  If it does in this way, the hearth 10 and the moving frame 20 which are connected and integrated by the connecting member 14 can be easily guided to the take-out position under the entrance / exit 5 by the rotating rotary ring 31. Rails are laid in the furnace and at the bottom of the furnace so that the hoisting device provided on the moving carriage and the jack provided on the traveling carriage hold the integrated hearth and moving frame of a predetermined length, and It is no longer necessary to reciprocate the moving carriage and the traveling carriage along the rail.

  When the hearth 10 and the moving frame 20 connected and integrated by the connecting member 14 as described above are all made into the block B and taken out from the furnace 1, the hearth 10 and the moving frame that are integrally cut are cut. 20 is not supported by the two rotating rings 31, the extension frame 25 is attached to the auxiliary member 24 or the moving frame 20 as shown in FIG. The moving frame 20 can be stably supported by two or more rotating rings 31.

  In addition, after all the hearth 10 and the moving frame 20 are taken out from the furnace 1 as described above, when the new hearth 10 and the moving frame 20 are provided in the furnace 1, the support member is used as described above. The support member 21 in the moving frame 20 having a length corresponding to the hearth 10 is passed through the penetration part 13 of the hearth 10 with respect to the hearth 10 having a predetermined length on which the fixed beam 12 is attached on the top 11. After projecting above the hearth 10 and mounting the drive beam 22 on the support member 21, the hearth 10 having a predetermined length and the moving frame 20 are connected by a connecting member 14, 10 and the moving frame 20 are integrated to obtain a block B having a predetermined length, and an auxiliary member 24 is attached to a support portion 23 that protrudes from the lower portion of the moving frame 20 to move the moving frame. The lower end of the arm 20 is made to be flat.

  Then, as shown in FIG. 7, the block B in which the hearth 10 and the moving frame 20 are integrated to have a predetermined length is moved by the lifting device 40 such as a crane provided above the furnace 1. A rotating ring that is guided to the inside of the furnace 1 through the entrance / exit 5 and has a lower end of the moving frame 20 that is flattened by attaching the auxiliary member 24 to the support portion 23 as described above, and is rotatably mounted on the outer periphery of the eccentric cam 33. It is made to mount on 31.

  Thereafter, the block B is removed from the lifting device 40, and the block B is pulled in a direction opposite to that taken out by a winch (not shown) or the like, and the rotating ring 31 that supports the lower end of the flat moving frame 20 is supported. The block B is moved in the direction opposite to the entrance / exit 5 in the furnace 1 while rotating, and the operation is repeated to integrate the hearth 10 and the moving frame 20 into a predetermined length. Block B is introduced into the furnace 1 in sequence.

  Then, the hearth 10 in each block B and the moving frame 20 in each block B introduced into the furnace 1 are connected to each other, and the hearth 10 in each block B is attached to the furnace 1 to be continuous in the furnace 1. While the hearth 10 and the moving frame 20 are set, the connecting member 14 that connects the hearth 10 and the moving frame 20 is removed to separate the hearth 10 and the moving frame 20, and a support portion The auxiliary member 24 attached to 23 is removed. Note that the operation of connecting the hearths 10 and the moving frames 20 in each block B introduced into the furnace 1 may be performed together after all the blocks B are introduced into the furnace 1. It may be performed each time the is introduced.

  Further, when the integrated hearth 10 and the moving frame 20 connected by the connecting member 14 as described above are introduced into the furnace 1, the integrated hearth 10 and the moving frame 20 are rotated in the two directions described above. When not supported by the ring 31, as shown in FIG. 6, the extension frame 25 is attached to the auxiliary member 24 or the moving frame 20, and the integrated hearth 10 and the moving frame 20 are divided into two. The two or more rotating rings 31 can be stably supported.

  Thereafter, the forward / backward moving cylinder 34 is attached to the moving frame 20 connected as described above, and the entrance / exit 5 provided in the ceiling portion 4 of the furnace 1 is closed.

  If it does in this way, the hearth 10 and the moving frame 20 which were connected and integrated by the connection member 14 can be easily moved by the rotating ring 31 rotating in the furnace 1, A rail is laid on the bottom of the furnace, and a hoisting device provided on the moving carriage and a jack provided on the traveling carriage hold the integrated hearth and moving frame of a predetermined length along the rail. This eliminates the need to reciprocate the moving carriage or traveling carriage over and over again.

  In this embodiment, the reinforcing support portion 23 is provided so as to protrude from the lower portion of the moving frame 20, so that the auxiliary member 24 is attached to the support portion 23 so that the lower end of the moving frame 20 becomes flat. However, when the moving frame 20 has sufficient strength and the support part 23 for reinforcement is not provided, the lower end of the moving frame 20 is flat. Absent.

  In this embodiment, in the walking beam driving means 30, an eccentric cam 33 that is rotated by a rotating device 32 is provided to reciprocate the moving frame 20 in the vertical direction, and a rotating body 31 is provided on the outer periphery of the eccentric cam 33. However, the means for reciprocating the moving frame 20 in the vertical direction is not limited to this, and a conventionally known means can be used. it can.

  For example, as shown in FIGS. 8A and 8B, an upper roller 35a and a lower roller 35b are attached to the upper and lower portions of the operating frame 35 that is reciprocated by a reciprocating cylinder (not shown). While the moving frame 20 is supported on the upper roller 35a, the inclined guide portion 36 can be provided on the floor G that the lower roller 35b contacts. Then, when the operation frame 35 is reciprocated, the lower roller 35b attached under the operation frame 35 moves along the inclined guide portion 36, and accordingly, attached to the operation frame 35. Further, the moving frame 20 is reciprocated in the vertical direction by the upper roller 35a. In this case, the upper roller 35a that supports the moving frame 20 functions as a rotating body that supports and rotates the moving frame 20.

  Further, as shown in FIGS. 9A and 9B, a rotating roller 38 is rotatably provided at an upper end of a rotating arm 37 that rotates about a fulcrum 37a. While the movable frame 20 is supported, a rotating cylinder 39 that rotates the rotating arm 37 can be attached to the lower end portion of the rotating arm 37. When the rotation arm 37 is rotated by the rotation cylinder 39, the rotation roller 38 provided at the upper end of the rotation arm 37 is rotated in the vertical direction. The moving frame 20 is reciprocated in the vertical direction by 38. In this case, the rotating roller 38 that supports the moving frame 20 acts as a rotating body that supports and rotates the moving frame 20.

DESCRIPTION OF SYMBOLS 1 Furnace 2 Outlet 3 Door 4 Ceiling part 5 Entrance 10 Furnace 11 Support member 12 Fixed beam 13 Through part 14 Connection member 20 Moving frame 21 Support member 22 Drive beam 23 Support part 23a Concave 24 Auxiliary member 25 Extension frame 30 Walking beam Driving means 31 Rotating ring (Rotating body)
32 Rotating device 33 Eccentric cam 34 Back-and-forth moving cylinder 35 Actuating frame 35a Upper roller (rotating body)
35b Lower roller 36 Inclination guide part 37 Rotating arm 37a Support point 38 Rotating roller (rotating body)
39 Rotating cylinder 40 Elevating device 41 Winch B Block G Floor W Workpiece

Claims (8)

  A plurality of fixed beams along the furnace length direction are provided on each support member erected on the hearth provided in the furnace, and provided on the hearth from the moving frame provided below the hearth. A plurality of drive beams along the furnace length direction are provided on each support member protruding above the hearth through the formed through-hole, and the moving frame is supported by a rotating body provided in the walking beam driving means. In the renovation method of the walking beam type heating furnace in which the driving beam provided on the moving frame performs the walking operation by the walking beam driving means through the rotating body, the furnace provided with the fixed beam from the inside of the furnace In taking out the floor and the moving frame provided with the drive beam, the hearth and the moving frame are connected and integrated, and the hearth is separated from the furnace. The integrated hearth and moving frame are cut to a predetermined length and taken out from the take-out position, and the integrated hearth and move frame are sequentially guided to the take-out position while rotating the rotating body. A method for refurbishing a walking beam type heating furnace.   2. The method for repairing a walking beam heating furnace according to claim 1, wherein when the integrated hearth and moving frame are cut to a predetermined length, the hearth and moving frame cut to a predetermined length. Is not supported by two rotating bodies, an extension frame is attached to the moving frame supported by the rotating body, and the hearth and the moving frame cut to a predetermined length are supported by two or more rotating bodies. A method of repairing a walking beam heating furnace characterized by being made to do so.   In the renovation method of the walking beam type heating furnace according to claim 1 or 2, when the support portion of the moving frame supported by the rotating body is uneven, the support portion of the moving frame becomes flat. A method for repairing a walking beam heating furnace characterized in that an auxiliary member is attached to the recess.   The walking beam heating furnace refurbishing method according to any one of claims 1 to 3, wherein an entrance is opened in the ceiling of the furnace, and is integrated as described above and cut into a predetermined length. A walking beam heating furnace refurbishing method, wherein the raised hearth and the moving frame are lifted by an elevating device through the doorway and taken out from the furnace.   A plurality of fixed beams along the furnace length direction are provided on each support member erected on the hearth provided in the furnace, and provided on the hearth from the moving frame provided below the hearth. A plurality of drive beams along the furnace length direction are provided on each support member protruding above the hearth through the formed through-hole, and the moving frame is supported by a rotating body provided in the walking beam driving means. In the walking beam heating furnace manufacturing method in which the driving beam provided on the moving frame performs a walking operation by the walking beam driving means through the rotating body, the hearth and the moving frame having a predetermined length are provided. Are connected and integrated, and the integrated hearth of a predetermined length and the moving frame are introduced into the furnace through an inlet / outlet provided in the furnace, and the moving frame is walked. A walking beam, which is supported by a rotating body provided in a beam driving means, and in which the integrated hearth and moving frame of a predetermined length are sequentially moved in the furnace while rotating the rotating body. Manufacturing method of the type heating furnace.   6. The method of manufacturing a walking beam type heating furnace according to claim 5, wherein when the integrated hearth and the moving frame having a predetermined length are not supported by the two rotating bodies, the moving frame is supported by the rotating body. A method for manufacturing a walking beam type heating furnace, wherein an extension frame is attached to the core and the integrated hearth and moving frame are supported by two or more rotating bodies.   In the manufacturing method of the walking beam type heating furnace according to claim 5 or 6, when the support portion of the moving frame supported by the rotating body is uneven, the supporting portion of the moving frame becomes flat. A method of manufacturing a walking beam type heating furnace characterized by attaching an auxiliary member as described above. In walking beam type method for producing a heating furnace according to any one of claims 5 to 7, is opened the entrance to the ceiling portion of the furnace, becomes a predetermined length are integrated as described above A method of manufacturing a walking beam type heating furnace, wherein the hearth and the moving frame are suspended by a lifting device through the doorway and introduced into the furnace.

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