JP2638725B2 - Construction method of refuse incinerator facilities - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for constructing a refuse incinerator facility for constructing a garbage pit, a refuse incinerator, a waste heat boiler, a dust collector, etc. installed in a building and a garbage plant in the construction of an incineration plant. About.

[0002]

2. Description of the Related Art The main parts of a refuse incineration plant are an incinerator and a boiler, which are assembled by carrying around 30 heavy equipment material members blocked into about 10 to 18 tons. Up to four incinerators will be installed side by side. Other dust collectors and control devices are assembled by carrying a large number of lightweight device material members of about 1 to 2 tons. When carrying these equipment materials into the building and installing them,
Conventionally, there were a closed method and an open method.

[0003] First, as shown in FIG. 9, the closed construction method firstly constructs a building 21 almost, and 20-30 tons (15 tons × 2) capable of transporting heavy objects to the ceiling of the building 21.
× 2-4 series) Telha type heavy hoist crane 22 and 3
About 4 tons of Telha-type light hoist crane 23 are installed, and the block-shaped equipment material members conveyed to the inside of the building 21 and the outside of the building are transported to the installation position by the hoist cranes 22 and 23 for installation and assembly. I was

In the open construction method, as shown in FIGS. 10 and 11, after the building 31 is constructed while leaving the roof 31a, a large heavy crawler crane (mobile crane) having a capacity of about 350 to 400 tons is provided. Using 32)
The block-shaped equipment material member conveyed to the vicinity of the building 31 is carried in from the upper part of the building 31 through the unconstructed roof 31a, and after the completion of the carrying-in work after performing the installation and assembly,
The roof 31a was being constructed. In this oven method, the construction of the building at the location where the crawler crane is used will be postponed, and the construction will proceed without using a crawler crane with an unnecessarily high capacity and not requiring a long claim boom. Had been.

[0005]

However, in the above-mentioned closed method, an incinerator or a boiler is installed after the building is almost completed. The sum of the construction period of the building and the installation period of the incinerator is the construction period of the entire equipment, and the overall construction period becomes longer and the construction cost is higher. b. Since a large Telha-type hoist crane is installed on the ceiling of the building, it is necessary to provide the building with strength capable of withstanding the load of the crane, and the construction cost of the building is high. There was a problem.

In the open method, a crawler crane is used. The sum of the construction period of the building excluding the roof in the equipment loading range, the installation period of the equipment such as the incinerator, and the construction period of the roof in the equipment loading range is the total construction period, and the entire construction period is long. b. The long period (about 2 months) of using a large heavy crawler crane is long and the safety is low. c. Until the installation of incinerators and other equipment is completed, work will be performed at the site without a rain cover, and the work efficiency will be poor depending on the weather. d. When the assembly and installation work after carrying in the incinerators and other equipment and the roof construction work proceed simultaneously, safety measures are difficult and the costs involved are high. There was a problem.

An object of the present invention is to solve the above-mentioned problems and to provide a construction method of a refuse incinerator facility capable of shortening the construction period, improving work efficiency and improving construction efficiency and reducing construction costs. I do.

[0008]

In order to solve the above-mentioned problems, a construction method of a refuse incinerator facility of the present invention includes a soil-filling construction step of constructing a soil-filled space of a frame having a vehicle entrance by concrete casting. After that, a frame construction step of installing a boiler frame using a mobile crane that has entered the vehicle entrance after the concrete curing is performed, and the heavy crane frame above the boiler frame is further moved by the mobile crane to a heavy equipment material member. Perform a crane installation process of installing a heavy hoist crane that can carry in, simultaneously with the frame construction process and the crane installation process, simultaneously proceed with the building construction process of building the building frame and roof, and after unloading the mobile crane, Using the heavy hoist crane, the equipment material members carried into the vehicle entrance are carried in, installed and constructed. At the same time implementing the 却炉 equipment installation process, the building construction process also is performed in parallel.

[0009]

According to the construction method described above, a hoist crane capable of carrying a heavy equipment material member and a light equipment material member is provided in a boiler frame. The building construction process can be performed in parallel with the equipment installation process, and there is no need to increase the strength because a large load is not applied to the building. Also, compared to using a heavy-duty crawler crane with low safety in the open construction method for a long period of time, the construction of the boiler frame can be carried out with a small and light mobile crane in a short period of time, and the incinerator equipment installation process During the building construction process can proceed in parallel.

Therefore, the construction of the building can proceed in parallel with the process other than the concrete soil work process and the work other than the construction portion during the crane installation process.
The construction period can be greatly reduced, and the hoist crane is installed using the boiler frame, so that no other load is added to the building and the construction cost can be reduced.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the construction method of a refuse incineration plant according to the present invention will be described below with reference to FIGS.

First, an outline of a refuse incinerator facility to be constructed will be described with reference to FIGS. Reference numeral 13 denotes a garbage pit for introducing garbage from a garbage truck from the garbage loading section 2a of the skeleton 2. Two garbage pits are provided. The boiler 5 is provided on the upper part 12. Exhaust gas cooling tower 10 and dust collector 1 from these incinerators 12 via vehicle entrance 1
1 is installed. Reference numeral 14 denotes an ash pit for storing incineration ash discharged from the incinerator 12.

Before construction, in order to avoid work mixed with the civil engineering process, assembling of equipment and devices such as incinerators and boiler components is not performed on site, but is performed in other places to make blocks, prefabricated, and so on. Promote unitization,
A heavy equipment material member divided into about 18 tons and a light equipment material member of about 1 to 2 tons are separately provided, and the loading and installation method is efficiently performed.

Next, the construction process will be described step by step. (1) As shown in FIG. 4, a skeleton (including soil and wall) 2 having a vehicle entrance (soil) 1 is formed by concrete casting (soil construction process). The vehicle entry section 1 includes a light crawler crane (mobile crane) 3 described below.
It has enough strength to get in.

(2) As shown in FIG. 5, after curing the concrete, a 45-ton class (for suspending a 1-ton class equipment material member) light crawler crane 3 enters the vehicle entrance 1, and the furnace is carried in by a trailer. The body steel frame 4 is carried into the construction position by the crawler crane 3 and assembled and installed. Further, as shown in FIG. 6, a boiler frame 5a is placed on a furnace steel frame 4 constructed by the crawler crane 3.
The crane frame portion 5b is loaded and assembled (frame construction step). The boiler frame 5a is set to be taller than a conventional boiler frame, and the upper portion is configured as a crane frame 5b.

(3) Further, as shown in FIG. 6, the crawler crane 3 is used to attach a hoist running rail 6a whose carrying end protrudes above the vehicle entrance 1 to the crane frame 5b. The hoist body 6b is mounted on the hoist running rail 6a, and two sets of 15 ton class Telha type heavy hoist cranes 6 each capable of carrying heavy equipment material members are installed [crane installation process]. As shown in the figure, the rainy weather safety plate 7 is attached to the ceiling of the crane frame 5a. In addition, the work for mounting the roof above the frame 5a for the crane and the operation for assembling the incinerator 12 and the boiler 5 below the frame 5a for the crane can be separated and safely performed by the rain / safety plate 7, respectively.

(4) In parallel with the frame construction step and the crane installation step, the side walls 8a and the like of the building 8 are constructed, and the roof 8b is constructed at a location unrelated to the frame construction step and the crane installation step (building construction step). Also do. Further, as shown in FIG. 1, after the roof 8 b is installed above the installation position of the cooling tower 10 and the dust collector 11, the carry-in end of the hoist running rail 9 a protrudes outside the building 8 on the roof 8 b, and lightweight equipment is externally provided. A light hoist crane 9 of 3 to 4 ton class capable of carrying material members is provided.

(5) As shown in FIG. 7, the heavy and light equipment materials such as the incinerator and the boiler components which are made into blocks and unitized are carried into the vehicle entrance 1 by a trailer, and the heavy hoist crane 6 As shown in FIG. 8, a hopper 12a and a conveyor (not shown) are provided on the furnace body steel frame 4 in the incinerator 12, and a grate 12b is assembled to further construct a furnace body as shown in FIG. Thereafter, the boiler 5 is assembled in the boiler frame 5a. At the same time, a lightweight equipment material member is carried in from the outside of the building 8 using the light hoist crane 9, and the cooling tower 10 and the dust collector 11 are installed in parallel (incinerator equipment installation step).

According to the above-described embodiment, after the concrete work is completed after the soil work process is completed, the frame construction process and the crane installation process performed in the vehicle entry unit 1 at locations other than the vehicle entry unit 1 do not conflict with each other. Within this range, the building construction process can be performed simultaneously with the frame construction process, the crane installation process, and the incinerator facility installation process, so that the construction period can be significantly shortened as compared with the related art.

Further, since the heavy hoist crane 6 is provided by using the boiler frame 5a provided with the frame portion 5b for the crane at a slightly higher height, the heavy hoist crane 6 is mounted on the building 8 as in the conventional closed construction method. Compared to installing a crane, it is not necessary to increase the strength of the building 8, and the material cost of the building 8 can be greatly reduced. In comparison, safety can be greatly improved.

[0021]

As described above, according to the construction method of the refuse incineration plant of the present invention, a hoist crane capable of carrying a heavy equipment material member and a light equipment material member is provided on a boiler frame, and therefore, a conventional closed construction method is used. As compared with the case of installing in a building as described above, the building construction process can be performed in parallel with the incinerator facility installation process, and a large load is not applied to the building, and it is not necessary to increase the strength. Also, compared to using a heavy-duty crawler crane with low safety in the open construction method for a long period of time, the construction of the boiler frame can be carried out with a small and light mobile crane in a short period of time, and the incinerator equipment installation process During the building construction process can proceed in parallel.

Therefore, the construction of the building can be performed in parallel during the operation other than the earthwork construction process and the construction portion during the crane installation process, so that the construction period can be greatly reduced and the boiler frame can be used. Since the hoist crane is installed, no other load is added to the building, and the construction cost can be reduced.

[Brief description of the drawings]

FIG. 1 is an overall longitudinal sectional view showing a refuse incineration facility constructed by a construction method according to the present invention.

FIG. 2 is a sectional view taken along line AA shown in FIG.

FIG. 3 is a sectional view taken along line BB shown in FIG.

FIG. 4 is a cross-sectional view showing a soil construction process of the construction method.

FIG. 5 is a cutaway perspective view showing a frame construction step of the construction method.

FIG. 6 is a perspective view showing a crane installation step of the construction method.

FIG. 7 is a perspective view showing a state of carrying in the incinerator facility installation step of the construction method.

FIG. 8 is a perspective view showing an incinerator assembly state in an incinerator facility installation process of the construction method.

FIG. 9 is an overall vertical sectional view of a refuse incineration plant showing a conventional closing method.

FIG. 10 is an overall vertical sectional view of a refuse incineration plant showing a conventional open method.

FIG. 11 is a perspective view showing an operation in a conventional open construction method.

[Description of Signs] 1 Vehicle entry part 2 Body 3 Light crawler crane 4 Furnace steel frame 5 Boiler 5a Boiler frame 5b Crane frame 6 Heavy hoist crane 6a Hoist running rail 6b Hoist body 7 Rain / safety plate 8 Building 8a Side wall 8b Roof 9 light hoist crane

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Motomu Takeuchi 1-4-6 Sakurajima, Konohana-ku, Osaka-shi, Osaka Inside Hitachi Zosen Engineering Co., Ltd. (72) Yasushi Yamada 1-4-4 Sakurajima, Konohana-ku, Osaka-shi, Osaka No. 6 Inside Hitachi Zosen Engineering Co., Ltd.

Claims (1)

(57) [Claims] After performing a dirt construction process of constructing a dirt of a skeleton having a vehicle entrance by concrete casting, a boiler frame is installed by using a mobile crane that has entered the vehicle entrance after the concrete has been cured. A crane installation step of installing a heavy hoist crane capable of carrying heavy equipment material members into the crane frame section above the boiler frame by the movable crane is performed, and the frame construction step and the crane installation step are performed. At the same time, the building construction process of constructing the building frame and roof is proceeded simultaneously, and after the mobile crane is carried out, the equipment material members carried into the vehicle entrance are carried in using the heavy hoist crane for installation and construction. At the same time as performing the incinerator equipment installation process, the building construction process is also performed in parallel. Construction method of refuse incinerator facilities.