JP6738267B2 - Dry combustion waste transport device and method for forming opening of boiler furnace - Google Patents

Description

The present invention relates to a dry-combustion-waste-conveying device capable of forming an opening so that a temporary scaffolding member and the like can be carried in and out of a boiler furnace, and a method for forming an opening of a boiler furnace using the same.

Conventionally, a boiler device is provided with a discharge hopper below the boiler furnace, and below the discharge hopper, there is provided a conveying device that conveys combustion waste discharged from the boiler furnace in the downstream direction. The transfer device can be roughly classified into a wet combustion waste transfer device such as a wet clinker conveyor and a dry combustion waste transfer device such as a dry clinker conveyor. In recent years, in order to reduce the equipment cost related to water in the wet type, a dry combustion waste transport device has been widely adopted.

FIG. 7: is a side view which shows an example of the dry combustion waste conveyance apparatus in the conventional boiler apparatus, and FIG. 8 is the rear view which looked at the dry combustion waste conveyance apparatus from the conveyance direction and the opposite direction. The "conveying direction" in this specification and the claims means the "downstream direction" in which dry combustion waste is conveyed. A discharge hopper 112 is provided below the boiler furnace 111 in the boiler device 110, and a dry combustion waste transport device 120 that transports the combustion waste discharged from the boiler furnace 111 in the transport direction T below the discharge hopper 112. Is provided. The dry combustion waste transport device 120 is a structure that is continuous in the transport direction T below the discharge hopper 112, and columns 113 that support the discharge hopper 112 are provided in the transport direction T on both sides of the dry combustion waste transport device 120. It is provided at intervals. The column 113 also supports a scaffold 114 for inspection, and a frame 115 including these is present on both sides of the dry combustion waste transport device 120.

On the other hand, in the boiler device, inspections and repairs inside the boiler furnace are performed in periodic inspections and the like. When inspecting or repairing the inside of the boiler furnace, a temporary scaffold is built inside the boiler furnace, and the inspection and repair are performed from the temporary scaffold. Therefore, before inspection/repair, it is necessary to carry in and assemble temporary scaffolding materials inside the boiler furnace, and to provide an opening for carrying in repairing equipment. This opening is also used when carrying out repair equipment and temporary scaffolding after inspection and repair.

In the prior art related to the wet combustion waste transport device, there is one in which a part of the wet clinker hopper is detachably divided into an upper hopper and a lower hopper, and the lower hopper is mounted on a moving base so that it can be moved laterally. (For example, refer to Patent Document 1). In this invention, by moving the lower hopper laterally, a large opening is secured at the lower end of the upper hopper so that the temporary scaffolding material can be loaded and unloaded.

JP-A-3-134407

However, the dry combustion waste transport device 120 described above is a structure that is continuous in the transport direction T below the discharge hopper 112, and may be a very large structure. Moreover, the frame 115 including the columns 113 of the discharge hopper 112 exists in the transport direction T on both sides of the dry combustion waste transport device 120. For this reason, it is difficult to divide a part and move it to the side or to move the whole to the side like the wet combustion waste carrier of Patent Document 1. Further, the dry combustion waste transporting device 120 is a large structure continuous in the transporting direction T and often has a large weight, and it is difficult to move the entire transporting device at each maintenance and inspection.

Therefore, conventionally, as shown in FIGS. 7 and 8, an opening 117 is provided on the side surface of the discharge hopper 112, and a temporary scaffold member and the like are carried into the boiler furnace 111 through the opening 117. However, in the case of the dry type, the range of the discharge hopper 112 is narrower than that in the case of the wet type, and the opening 117 that can be provided on the side surface of the discharge hopper 112 is, for example, a side with a small size of about 1 m. Therefore, it is necessary to disassemble the temporary scaffold member into small pieces before carrying in and out, and it takes a lot of time and labor to carry in and out the large number of temporary scaffold members.

Moreover, after the temporary scaffolding and the like are lifted up to the height of the inspection scaffold 114 provided around the discharge hopper 112, they are carried into the discharge hopper 112 through the opening 117. However, since the opening 117 may be about 10 m above the floor surface 116, it takes time and labor to lift the temporary scaffold member and the like to the height of the inspection scaffold 114 of the discharge hopper 112, resulting in work efficiency. bad.

For this reason, the work of loading and unloading the temporary scaffolding member into the boiler furnace is inefficient, and the boiler device 110 is stopped for a long period during a periodic inspection or when a trouble occurs. When the boiler equipment is stopped, the number of days required for inspection of the boiler furnace can be shortened by several days, which can significantly reduce the cost.Therefore, it is required to reduce the number of days required for loading and unloading temporary scaffolding members. ..

Therefore, the inventor has fixed that the mesh belt conveyor or the like in the dry combustion waste transfer device needs to be integrally moved without being divided in order to form a large opening below the boiler furnace. Boiler furnace based on the idea of changing the idea from the idea, dividing a part of the dry combustion waste transfer device, and moving a part of the divided dry combustion waste transfer device in the direction opposite to the combustion waste transfer direction. A large opening below the dry combustion waste transfer device that can form an opening so that temporary scaffolding members can be easily loaded and unloaded into and from the boiler furnace, and the boiler furnace The method of forming an opening was invented.

The dry combustion waste transport device according to the present invention is a dry combustion waste transport device that transports combustion waste in a downstream transport direction below a boiler furnace, and the dry combustion waste transport device is the dry combustion waste transport device. A moving part including a rear end part, which divides a part of the moving part from another fixed part, and a moving device which moves the moving part divided by the dividing part in a direction opposite to the conveying direction of the combustion waste. There is.

With this configuration, by dividing a part including the rear end portion of the dry combustion waste conveying device provided below the boiler furnace and moving it in the direction opposite to the conveying direction of the combustion waste, the rear end portion of the boiler furnace A large opening can be formed below. Therefore, the temporary scaffold member and the like can be easily carried in and out of the boiler furnace through this opening, and the number of days required for carrying in and carrying out the temporary scaffold member and the number of inspection days of the boiler furnace can be shortened.

The moving device may include traveling wheels, and may further include a rail that moves the traveling wheels in a direction opposite to a direction in which the combustion waste is conveyed.

According to this structure, a part of the divided dry combustion waste transport device can be easily moved along the rail, and convenience can be improved.

Further, the dividing portion may be connected to the fixed portion by a connecting tool that connects the movable portion to the fixed portion or divides the fixed portion.

According to this structure, the work of dividing a part including the rear end of the dry combustion waste transporting device and the work of connecting a part including the rear end can be performed by the dividing work or the connecting work of the connecting tool in the dividing part. It can be done efficiently. Therefore, a part of the dry combustion waste transport device can be easily divided.

The dry combustion waste transport device is a combustion waste transport conveyor that transports the combustion waste, and the combustion waste transport conveyor includes a fixed transport conveyor portion that extends in the transport direction of the combustion waste from a position of the dividing portion. A movable transfer conveyor part movable in a direction opposite to the transfer direction of the combustion waste, the combustion waste in the transfer direction between the fixed transfer conveyor part and the movable transfer conveyor part. You may have the transfer part to transfer.

According to this structure, a part of the transfer conveyor can be easily divided by moving the transfer transfer conveyor part away from the fixed transfer conveyor part and moving it in the direction opposite to the transfer direction of the combustion waste.

The dry combustion waste transport device is a combustion waste transport conveyor that transports the combustion waste, and the combustion waste transport conveyor includes a fixed transport conveyor portion that extends in the transport direction of the combustion waste from a position of the dividing portion. And a movable transport conveyor part movable in a direction opposite to the transport direction of the combustion waste, the movable transport conveyor part is a fixed casing of the fixed transport conveyor part, the movable casing being divided by the dividing part. A conveyor belt hung over the moving and conveying conveyor portion and the fixed conveying conveyor portion at a predetermined distance from the moving casing and the fixed casing at an opening portion between the moving casing and the fixed casing. It may be configured to be dividable.

According to this structure, the moving casing of the movable conveyer portion and the fixed casing of the fixed conveyer portion are separated by a predetermined distance by the separating means, so that the conveyor belt hung inside from the opening therebetween. Can be easily divided, and the movable transfer conveyor part can be easily separated from the fixed transfer conveyor part.

Further, the dry combustion waste transport device is a combustion waste transport conveyor that transports the combustion waste, and the combustion waste transport conveyor divides a conveyor belt from both sides of the casing at a position of the dividing portion of the casing. A part of the combustion waste transport conveyor including a work opening and dividing the conveyor belt from the work opening may be configured to be movable in a direction opposite to a transport direction of the combustion waste as the moving portion. ..

With this configuration, the working opening is opened at the position of the dividing portion of the casing to divide the internal conveyor belt, and the rear end portion of the combustion waste transport conveyor including the divided conveyor belt is used as a moving portion to generate the combustion waste. It can be moved in the direction opposite to the transport direction. This also makes it possible to form a large opening below the boiler furnace at the portion of the combustion waste transport conveyor that has been moved in a divided manner.

On the other hand, the method for forming an opening of a boiler furnace according to the present invention divides a dry combustion waste transfer device that transfers combustion waste in a downstream transfer direction below the boiler furnace, and forms an opening below the boiler furnace. An opening forming method, wherein a part of the dry combustion waste transfer device including at least a rear end part is divided, and a part of the divided dry combustion waste transfer device is moved in a direction opposite to a direction in which the combustion waste is transferred. Thus, an opening is formed below at least a part of the boiler furnace.

With this configuration, at least a part including the rear end portion of the dry combustion waste transporting device provided below the boiler furnace is divided and moved in the direction opposite to the transport direction of the combustion waste without obstacles such as frames. As a result, a large opening can be formed below the boiler furnace in a portion where a part of the dry combustion waste transport device is moved. Therefore, the temporary scaffold member and the like can be easily carried in and out of the boiler furnace through this opening, and the number of days required for carrying in and carrying out the temporary scaffold member and the number of inspection days of the boiler furnace can be shortened.

Further, the boiler furnace is provided with a discharge hopper divided into a plurality in the combustion waste conveying direction below, and a part of the dry combustion waste conveyer device to be divided is divided into a plurality of the discharge hoppers. It may be located at least at a portion of the rear end portion below the discharge hopper where the opening is formed.

According to this structure, a large opening can be formed by opening at least the lower part of the discharge hopper at the rear end of the discharge hopper divided in the conveyance direction of the combustion waste. Therefore, it is possible to easily carry in and carry out the temporary scaffolding member and the like into the boiler furnace from below the discharge hopper.

According to the present invention, even in a boiler device provided with a dry combustion waste transport device below the boiler furnace, a large opening is formed below the boiler furnace to easily carry in and carry out temporary scaffolding members and the like into the boiler furnace. The boiler device can be efficiently inspected and repaired. Therefore, it is possible to shorten the number of days required to inspect the boiler furnace.

1A and 1B are drawings showing a dry combustion waste transport conveyor of a boiler apparatus according to a first embodiment of the present invention, FIG. 1A is a side view, and FIG. 1B is a plan view showing an opening of arrow I. .. 2A and 2B are views showing a dry combustion waste transport conveyor according to a second embodiment of the present invention, FIG. 2A is a side view, and FIG. 2B is a plan view showing an opening of arrow II. 3A and 3B are drawings schematically showing a rear portion of a dry combustion waste transport conveyor according to a third embodiment of the present invention, in which FIG. 3A is a side view at a normal time and FIG. 3B is a side view at a time of division. .. FIG. 4 is a side view schematically showing the rear part of the dry combustion waste transport conveyor according to the fourth embodiment of the present invention. FIG. 5: is a side view which shows typically the rear part of the dry combustion waste conveyance conveyor which concerns on 5th Embodiment of this invention. FIG. 6 is a plan view showing a configuration example of a conveyor belt. FIG. 7: is a side view which shows an example of the dry combustion waste conveyance apparatus in the conventional boiler apparatus. FIG. 8 is a rear view of the dry combustion waste transport device shown in FIG. 7 as seen from the direction opposite to the transport direction.

Embodiments of the present invention will be described below with reference to the drawings. In the following embodiments, a dry combustion waste transport conveyor will be described as an example of the dry combustion waste transport device. Further, a configuration in which the discharge hopper 12 is provided below the boiler furnace 11 will be described as an example. The concept of the front-rear direction in this specification and the documents in the claims is the downstream direction (the left side of the drawing) which is the transport direction T of the combustion waste by the dry combustion waste transport conveyor 20 (dry combustion waste transport device) shown in FIG. It is assumed that the direction is "front" and the direction opposite to the transport direction T (rightward in the drawing) is "rear". The direction opposite to the transport direction T of the combustion waste is also referred to as "counter-transport direction O".

(First embodiment)
1A and 1B are drawings showing a dry combustion waste transport conveyor 20 of a boiler device according to a first embodiment, FIG. 1A is a side view, and FIG. 1B is a plan view showing an opening 17 as viewed in the direction of arrow I.

A discharge hopper 12 is provided below the boiler furnace 11 in the boiler device 10. The discharge hopper 12 is supported by columns 13 provided on the floor surface 16. The columns 13 are provided on both sides of the discharge hopper 12, and are provided at predetermined intervals in the transport direction T. Since the discharge hopper 12 of this embodiment is long in the transport direction T of the combustion waste, it is divided into a plurality of parts. A scaffold 14 for inspection is provided around the discharge hopper 12.

A dry combustion waste transfer conveyor 20 is provided below the discharge hopper 12, and the dry combustion waste transfer conveyor 20 transfers the combustion waste discharged from the boiler furnace 11 to the downstream direction, which is the left direction in the figure. .. On both sides of the dry combustion waste transport conveyor 20, there is a frame 15 including the pillars 13 and inspection scaffolds 14.

Further, in this embodiment, the moving portion (moving and conveying conveyor portion) 22 including the rear end portion of the dry combustion waste conveying conveyor 20 located below the rear end portion of the discharge hopper 12 that is divided into a plurality of portions is located at the front side. It is configured so that it can be divided from the fixed portion (fixed transfer conveyor portion) 21 to be used. The dividing portion 23 between the moving portion 22 and the fixed portion 21 can be connected or divided by using a connecting tool such as a bolt or a connecting tool such as a clamp.

The moving portion 22 divided from the fixed portion 21 is divided into a moving casing 25 and a moving conveyor belt 26, and the moving casing 25 and the moving conveyor belt 26 are arranged with respect to the fixed portion 21 in a direction opposite to the transport direction T of the combustion waste. It is possible to move it in the counter-transport direction O (rearward).

On both sides of the dry combustion waste transport conveyor 20, there are frames 15 such as columns 13 extending upward from the floor surface 16, but there are no obstacles such as the frame 15 in the anti-transport direction O of the dry combustion waste transport conveyor 20. (See FIG. 8), the divided moving portion 22 can be moved in the counter-transport direction O. Moreover, since the moving portion 22 that is a part including the rearmost portion is moved backward rather than the whole of the large dry combustion waste transport conveyor 20, the moving portion 22 with a reduced weight can be moved. The figure shows a state in which the moving portion 22 is moved in the counter-transport direction O.

Further, in this embodiment, the divided moving portion 22 is placed on a moving carriage 27 which is a moving device and moved. The movable carriage 27 can be easily moved by providing the wheels 28 with a drive source such as a motor.

In this way, by dividing a part of the moving portion 22 including the rear end portion of the dry combustion waste transport conveyor 20 from the fixed portion 21 and moving it in the anti-transport direction O, as shown in FIG. It is possible to form a large opening 17 below the rear end of the discharge hopper 12 within a predetermined range. In this example, the lower part of the rearmost portion of the discharge hopper 12 divided in the transport direction T is opened. Thereby, a large opening 17 can be formed below the boiler furnace 11. As the size of the opening 17, for example, the width dimension may be about 1 m to 2 m, and the length dimension may be about 6 m to 8 m.

Since the opening 17 is accessible from the floor surface 16, the temporary scaffolding member or the like is directly conveyed below the opening 17 by a truck or the like, and the temporary scaffolding member or the like is transferred from the inside of the boiler furnace 11 to the inside of the boiler furnace 11. It can be directly lifted and carried in. Therefore, it becomes possible to easily carry in and carry out the temporary scaffold member and the like into the boiler furnace 11, and it is possible to greatly improve the work efficiency such as the periodic inspection. As a result, the number of days required for loading and unloading temporary scaffolding members and the number of inspection days for the boiler furnace can be shortened.

(Second embodiment)
2A and 2B are drawings showing a dry combustion waste transport conveyor 30 according to the second embodiment, FIG. 2A is a side view, and FIG. 2B is a plan view showing an opening 17 in the direction of arrow II. It should be noted that the same components as those of the dry combustion waste transport conveyor 20 according to the first embodiment are denoted by reference numerals with "10" added, and description thereof will be omitted. The description of the frame 15 (FIG. 1) is omitted.

The dry combustion waste transport conveyor 30 of the second embodiment uses the dry combustion waste as a fixed transport conveyor portion (fixed portion) 31 at the front of the dividing portion 33 and a moving transport conveyor portion (moving portion) 32 at the rear of the dividing portion 33. The transport conveyor 30 is a plurality of independent conveyors. Further, the connecting portion 34 for transferring the combustion waste in the downstream direction is provided in the dividing portion 33 between the fixed transfer conveyor portion 31 and the moving transfer conveyor portion 32. The transfer section 34 may have any configuration as long as it can send the combustion waste transported in the transport direction T by the moving conveyor belt 36 of the moving transport conveyor portion 32 to the fixed conveyor belt 38 of the fixed transport conveyor portion 31. The transit section 34 may be provided in either the fixed transfer conveyor section 31 or the moving transfer conveyor section 32.

According to the dry combustion waste transporting conveyor 30, the fixed transporting conveyor portion 31 and the moving transporting conveyor portion 32 have different configurations, so that the moving transporting conveyor portion 32 moves the moving casing 35 to the fixed casing of the fixed transporting conveyor portion 31. If the connecting portion connected to 37 is divided, it can be easily moved in the counter-transport direction O.

With this dry combustion waste transport conveyor 30 as well, similar to the dry combustion waste transport conveyor 20 of the first embodiment, the movable transport conveyor portion 32 is divided and moved in the anti-transport direction O, as shown in FIG. As shown in FIG. 5, a large opening 17 can be formed below a predetermined range including the rear end of the discharge hopper 12. Thereby, a large opening 17 can be formed below the boiler furnace 11.

In addition, in this example, the moving and conveying conveyor portion 32 is the divided last portion of the discharge hopper 12, but when the discharge hopper 12 is configured to be short in the conveying direction T, the entire horizontal portion is moved. It may be allowed to.

(Third Embodiment)
3A and 3B are drawings schematically showing the rear part of the dry combustion waste transport conveyor 40 according to the third embodiment, where FIG. 3A is a side view in a normal state and FIG. 3B is a side view in a divided state. Note that the same components as those of the dry combustion waste transport conveyor 30 according to the second embodiment are denoted by reference numerals with "10" added, and the description thereof will be omitted. The description of the frame 15 (FIG. 1) is omitted.

In the dry combustion waste transporting conveyor 40 of the third embodiment, the moving casing 45 of the moving portion (moving transporting conveyor portion) 42 that divides from the fixed portion (fixed transporting conveyor portion) 41 at the splitting portion 43 and the fixed casing of the fixed portion 41. A tensioning device 49 having a function as a separating means for separating the device 47 from a predetermined distance is provided. In this embodiment, the separating means also serves as the tensioning device 49 in the tail portion of the conveyor belt 48. The tensioning device 49 of this embodiment is a jack. The tensioning device 49 is provided to absorb the amount of extension of the conveyor belt as the conveyor belt generally extends as the operation proceeds. Therefore, the stroke length of the tension device 49 is a stroke length capable of adjusting the extension amount of the conveyor belt 48. In this embodiment, the tension length of the tensioning device 49 is set to a length having an adjustment allowance in which the stroke length for division is added to the stroke length for adjustment. That is, in this example, the stroke length of the tension device 49 is the stroke length for adjustment+the stroke length for division. For example, the stroke of the tension device 49 is set to a length obtained by adding about 500 mm to the stroke length for adjustment.

According to the dry combustion waste transfer conveyor 40, the moving casing 45 of the moving portion 42 is divided from the fixed casing 47 of the fixed portion 41, and the stroke length of the tensioning device 49 is shortened as shown in FIG. 3(B). The moving casing 45 of the moving portion 42 is gradually moved in the counter-transport direction O. Then, the maintenance space S becomes an opening portion of about 500 mm between the fixed casing 47 of the fixed portion 41 and the moving casing 45 of the moving portion 42 while maintaining the tension of the conveyor belt 48 by the predetermined distance. Can be formed. Moreover, the conveyor belt 48 can be exposed. The maintenance space S makes it possible to easily divide and connect the exposed conveyor belt 48.

Thus, according to the dry combustion waste transport conveyor 40 of this embodiment, the moving casing 45 of the moving portion 42 is separated from the fixed portion 41 by the tensioning device 49 (spacer) at the dividing portion 43, and the conveyor belt at the dividing portion 43. Since 48 can be easily divided, the moving part 42 of the dry combustion waste transport conveyor 40 can be easily separated from the fixed part 41. By dividing the conveyor belt 48, the moving conveyor belt 46 (a part of the conveyor belt 48) together with the moving casing 45 of the moving portion 42 can be further moved in the counter-transport direction O. Therefore, by moving the moving portion 42 in the counter-transport direction O, a large opening 17 (FIG. 2B) can be formed below the boiler furnace 11.

(Fourth Embodiment)
FIG. 4 is a side view schematically showing the rear part of the dry combustion waste transport conveyor 50 according to the fourth embodiment. The frame 15 (FIG. 1) is not shown.

The dry combustion waste transport conveyor 50 according to the fourth embodiment includes a dividing portion 53 and a work opening 59 that facilitates the dividing work of the conveyor belt 58. The working opening 59 is normally covered with a lid 56. The lid 56 is fixed to the casing 55 with bolts 57. By removing the bolt 57 and removing the lid 56, an opening having the size of the working opening 59 can be formed on the side surface of the casing 55. By opening the work opening 59, it is possible to easily divide or connect the internal conveyor belt 58 from the work opening 59. The lid 56 can be opened and closed by providing a hinge, instead of being attachable and detachable by the bolt 57. The attachment of the lid 56 is not limited to this embodiment.

According to the dry combustion waste transport conveyor 50, the portion including the rear end portion of the conveyor belt 58 is divided from the fixed portion (fixed transport conveyor portion) 51 into the moving portion (moving transport conveyor portion) 52, and the portion is moved in the anti-transport direction O. Can be moved. By moving the moving portion 52 from below the discharge hopper 12 in the counter-transport direction O, a large opening 17 (FIGS. 1B and 2B) can be formed below the boiler furnace 11.

(Fifth Embodiment)
FIG. 5 is a side view schematically showing the rear part of the dry combustion waste transport conveyor 60 according to the fifth embodiment. Regarding the frame 15 (FIG. 1), only a part of the column 13 is shown.

In the dry combustion waste transport conveyor 60 of the fifth embodiment, a rail 67 for moving a moving portion (moving transport conveyor portion) 62, which is split from a fixed portion (fixed transport conveyor portion) 61 at the splitting portion 63, in the anti-transport direction O. Is provided. In this embodiment, column bases 69 are provided on both sides of the moving portion 62, and traveling wheels 68 are provided below the column bases 69. The rail 67 is installed so as to extend rearward so that the traveling wheels 68 can move in the counter-transport direction O.

By installing such a rail 67, it is easy to move the moving portion 62, which is divided from the fixed portion 61 of the dry combustion waste transport conveyor 60, from below the discharge hopper 12 (boiler furnace 11) in the anti-transport direction O. Therefore, it is possible to improve convenience. The rail 67 may be used in any of the above embodiments.

The dry combustion waste transport conveyor 60 also moves the moving portion 62 in the anti-transport direction O to form a large opening 17 (FIGS. 1B and 2B) below the boiler furnace 11. be able to.

(Example of conveyor belt configuration)
FIG. 6 is a plan view showing a configuration example of the conveyor belt 70. The conveyor belt 70 is made of a metal material for carrying combustion waste. Therefore, the structure is generally difficult to divide. Therefore, for example, a mesh belt 71 (illustrated as a balance net type: a right-handed and a left-handed spiral line 72 and a corrugated force line 73 connecting them) is provided on the conveyor belt 70, for example. Can be adopted. In this case, the plate member 74 is attached to the outer periphery of the mesh belt 71 so that the combustion waste can be conveyed. By adopting the mesh belt 71, it is possible to easily divide and connect the conveyor belt 70 by extracting the force line 73 at the dividing portion (for example, the working opening 59 in the dividing portion 53 shown in FIG. 4). It can be configured as possible.

Further, when the conveyor belt is a chain conveyor, it is possible to easily divide and connect the conveyor belt 70 by using a known detachable chain link connector when the conveyor belt is a chain conveyor. The configuration of the conveyor belt is not limited to these examples.

(Action effect)
According to the boiler device 10 including the dry combustion waste transport conveyor (dry combustion waste transport apparatus) 20, 30, 40, 50, 60 described above, the dry combustion waste transport conveyors 20, 30, 40 are used in the construction such as the periodic inspection. , 50, 60 are divided by dividing portions 23, 33, 43, 53, 63 into moving portions 22, 32, 42, 52, 62, and are moved in the anti-conveying direction O, so that they are located below the boiler furnace 11. A large opening 17 can be formed. Therefore, the temporary scaffolding member or the like can be conveyed below the large opening 17 by a truck and the temporary scaffolding member or the like can be quickly carried in by lifting the temporary scaffolding member or the like from the inside of the boiler furnace 11. As a result, the labor and time required for the regular inspection work can be reduced, and the number of days required for the regular inspection work can be reduced.

For example, in the periodic inspection work on the boiler device 10 of 1 million kw class, it generally takes about 2 weeks to assemble the temporary scaffold in the furnace and about 10 days to remove it, but the opening 17 accessible from the floor 16 is required. By providing the above, it is possible to shorten the number of days required for the periodic inspection work by several days, improve the boiler operation rate, and achieve the cost reduction effect.

(Summary)
As described above, according to the dry combustion waste transport conveyor (dry combustion waste transport device) 20, 30, 40, 50, 60, the dry combustion waste transport conveyor 20, 30, 40, 50, below the boiler furnace 11. Even in the boiler device provided with 60, the large opening 17 can be formed below the boiler furnace 11. Therefore, temporary scaffolding members and the like can be easily carried in and out of the boiler furnace 11 through the opening 17, and the number of days required for the inspection of the boiler furnace 11 can be shortened by several days so that the inside of the boiler furnace 11 can be It is possible to efficiently inspect and repair. As a result, the time and cost required for inspection and repair of the boiler device 10 can be significantly reduced.

Note that the configuration in which the moving portions 22, 32, 42, 52, 62 including the rear end portions of the dry combustion waste transport conveyors 20, 32, 42, 52, 62 in the above-described embodiment are divisible is an example, and the casing May be divided after dividing the conveyor belt, it is possible to change to various dividable configurations within the range not impairing the gist of the present invention, it is not limited to the above embodiment Absent.

Further, in the above-described embodiment, the dry combustion waste transporting conveyor 20, 30, 40, 50, 60 is described as an example of the dry combustion waste transporting apparatus, but the dry combustion waste transporting apparatus is not limited to the transporting conveyor. It is not limited to the above embodiment as long as it is a dry combustion waste transporting device that transports the combustion waste from the boiler furnace 11 in the transport direction T.

Furthermore, the above-described embodiment shows an example, and various configurations may be modified without departing from the spirit of the present invention, and the present invention is not limited to the above-described embodiment.

10 Boiler Device 11 Boiler Furnace 12 Discharge Hopper 15 Frame 16 Floor 17 Opening 20 Dry Combustion Waste Conveyor (Dry Combustion Waste Conveyor)
21 Fixed Part 22 Moving Part 23 Dividing Part 25 Moving Casing 26 Moving Conveyor Belt 30 Dry Combustion Waste Conveyor (Dry Combustion Waste Conveying Device)
31 Fixed conveyor section (fixed section)
32 Mobile transport conveyor section (moving section)
33 division part 35 moving casing 40 dry combustion waste transport conveyor (dry combustion waste transport device)
41 Fixed Part 42 Moving Part 43 Dividing Part 45 Moving Casing 46 Moving Conveyor Belt 47 Fixed Casing 48 Conveyor Belt 49 Tensioner (Separating Means)
50 Dry Combustion Waste Conveyor (Dry Combustion Waste Conveyor)
51 Fixed Part 52 Moving Part 53 Dividing Part 55 Casing 58 Conveyor Belt 59 Working Opening 60 Dry Combustion Waste Transport Conveyor 61 Fixed Part 62 Moving Part 63 Dividing Part 67 Rail 68 Traveling Wheel 70 Conveyor Belt 71 Mesh Belt
T transport direction
O Anti-transport direction

Claims (8)

A dry combustion waste transport device for transporting combustion waste in a downstream transport direction below a boiler furnace,
The dry-combustion-waste-carrying device includes a dividing part that divides a part of a moving part including a rear end part of the dry-combustion-waste-carrying device from another fixed part.
A moving device that moves the moving portion divided by the dividing portion in a direction opposite to the conveying direction of the combustion waste,
A dry combustion waste transport device characterized by the above. The moving device includes traveling wheels,
Further comprising a rail for moving the traveling wheel in a direction opposite to a direction in which the combustion waste is conveyed,
The dry combustion waste transport device according to claim 1. The dividing portion is connected to the fixed portion with a connecting tool that connects the movable portion to the fixed portion or divides the fixed portion from the fixed portion,
The dry combustion waste transport device according to claim 1 or 2. The dry combustion waste transport device is a combustion waste transport conveyor that transports the combustion waste,
The combustion waste transfer conveyor comprises a fixed transfer conveyor part extending from the position of the dividing part in the transfer direction of the combustion waste, and a movable transfer conveyor part movable in a direction opposite to the transfer direction of the combustion waste. And
Between the fixed transfer conveyor part and the moving transfer conveyor part, there is a transfer section for transferring the combustion waste in the transfer direction,
The dry combustion waste transport device according to any one of claims 1 to 3. The dry combustion waste transport device is a combustion waste transport conveyor that transports the combustion waste,
The combustion waste transfer conveyor comprises a fixed transfer conveyor part extending from the position of the dividing part in the transfer direction of the combustion waste, and a movable transfer conveyor part movable in a direction opposite to the transfer direction of the combustion waste. And
The movable transfer conveyor section includes a separating means for separating the movable casing divided by the dividing section from the fixed casing of the fixed transfer conveyor section by a predetermined distance.
A conveyor belt hung over the movable transfer conveyor portion and the fixed transfer conveyor portion is configured to be dividable at an opening portion between the movable casing and the fixed casing, which are separated by a predetermined distance by the separating means.
The dry combustion waste transport device according to any one of claims 1 to 3. The dry combustion waste transport device is a combustion waste transport conveyor that transports the combustion waste,
The combustion waste transport conveyor, at the position of the dividing portion of the casing, a working opening for dividing the conveyor belt from both sides of the casing,
A part of the combustion waste transport conveyor that divides the conveyor belt from the working opening is configured to be movable in a direction opposite to the transport direction of the combustion waste as the moving portion,
The dry combustion waste transport device according to any one of claims 1 to 3. A method for forming an opening, in which a dry combustion waste transport device for transporting combustion waste in a downstream transport direction is divided below the boiler furnace, and an opening is formed below the boiler furnace.
At least one part of the boiler furnace is divided by dividing a part of the dry combustion waste transfer device including at least a rear end portion, and moving a part of the divided dry combustion waste transfer device in a direction opposite to the combustion waste transfer direction. Forming an opening below the section,
A method for forming an opening of a boiler furnace, comprising: The boiler furnace is provided with a discharge hopper that is divided into a plurality of pieces in the conveyance direction of the combustion waste below.
A part of the dry combustion waste transporting device to be divided is located at a portion forming the opening below the discharge hopper at least at a rear end of the discharge hopper divided into a plurality of parts.
The method for forming an opening of a boiler furnace according to claim 7.

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