JPS5922843Y2 - Chimney hopper that doubles as a work gondola - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a chimney hopper that also serves as a working gondola.

Traditionally, when inspecting, repairing, or cleaning the inside of a chimney, the first
The method shown in the figure is adopted.

Chimney 1 has a permanent hopper 2 and manhole 3 at the bottom end.
is provided, and a lifting device 6 for suspending the work gondola 5 is provided near the end.

The lifting device 6 is installed on a movable support base 8 that can be inserted into and removed from the chimney 1 through an open lower portion provided in the chimney 1.

The hopper 2 has a drain pipe 9.

In such a chimney, in the work mentioned above, the gondola 5 is carried into the chimney through the manhole 3 in a disassembled state since the manhole 3 is small, and is assembled on the hopper 2.

A hanger device 6 for hanging the gondola 5 assembled in this way
It is raised and lowered by a hanging rope 10.

However, with this method, the gondola 5
It is necessary to prepare the equipment, and it takes time and effort to carry it in, assemble it, dismantle it, and take it out.

In addition, in recent years, the inside of a chimney is often washed with water, and conventionally, water is sprayed from a nozzle through manholes provided at several locations in the top and bottom of the chimney.

Therefore, it is easy to wash only the vicinity of the manhole, and the high-pressure water often damages the lining material of the chimney.

Furthermore, the inner surface of the chimney below the flushing position is covered with a large amount of water, which also has an adverse effect on the lining.

The present invention speeds up the work and solves the above problems by making the hopper a structure that can be used in gondolas. Examples of the invention will be explained below based on Figs. 2 to 5. .

21 is a chimney, which is supported by a steel tower 22.

An opening 23 is provided near the upper end of the chimney 21, and a movable support base 25 equipped with a lifting device 24 is provided along a guide rail 26 so as to be insertable into and removed from the chimney 1 through the opening 23.

The lifting device 24 consists of a winch.

The guide rail 26 is provided on a support 27 at the upper end of the steel tower 22.

The movable support stand 25 is inserted and removed via a wire rope 29 by a drive device, that is, a winch 28 installed at the bottom of the steel tower 22 .

30 is a guide sheave for the wire rope 29. In addition,
Instead of providing the winch 28, a self-propelled device may be provided on the movable support base 25.

Furthermore, many chimneys constructed in recent years are equipped with movable support stands, which can be utilized in this embodiment.

Reference numeral 31 designates a hopper which is provided in the chimney 21 and also serves as a working gondola, which is suspended from a suspension rope 32 made of a wire rope of the lifting device 24 and can be moved up and down within the chimney 21.

The hanging cable 32 is attached to and detached from the hopper 31 at the lower end of the branched cable part 32a.

The hopper 31 has a drain tube 35 to which a drain hose 34 is connected at the center of the hopper main body 33 in the shape of a conical dish, and a flexible seal plate 37 on the outer periphery that slides into contact with the lining 36 on the inner surface of the chimney 21. is provided.

A handrail 38 is removably provided on the outer periphery of the upper surface of the hopper main body 33.

The hopper 31 is normally placed on a hopper support 39 provided at the lower end of the chimney 21.

At the lower end of the chimney 21, there is a drain pipe 40 that corresponds to the drain pipe 35 of the hopper 31 placed on the hopper support stand 39.
and a manhole 41 are provided.

Further, an annular drainage plate 42 is provided along the inner periphery of the chimney 21, located slightly above the seal plate 37 of the hopper 31.

The draining plate 42 has an inclination that descends toward the inner circumference, and the inner diameter of the draining plate 42 is slightly larger than the outer diameter of the hopper main body 33.

The chimney 21 has water supply hose connection ports 43 opening on the inner surface at appropriate intervals in the height direction.

The water supply hose connection port 43 is connected to a water supply pipe 44 provided in the chimney 2], and each water supply hose connection port 43
An on-off valve 45 is provided for each.

The water supply hose connection port 43 is detachably connected to a water supply hose to a washing nozzle 46.

The movable support base 25 may be inserted into and removed from the chimney 21 by being supported on a support base 27 so as to be movable around a vertical axis 47 as shown in FIG.

Alternatively, the lifting device 24 may be installed on the steel tower 22, and the movable support base 25 may be provided with only its guide.

With this configuration, the hopper 31 is normally placed on the hopper support stand 39 at the lower end of the chimney 21 with the handrail 38 removed.

Further, the movable support stand 25 is retracted outside the chimney 21 so as not to obstruct ventilation, and the hanging cable 32 is wound up.

When inspecting or cleaning the inner surface of the chimney 21, a handrail 38 is attached to the hopper 31, the movable support base 25 is moved into the chimney 21, and the hanging cable 32 of the lifting device 24 is connected to the hopper 31. do.

In this way, the hopper 31 is raised and lowered by the lifting device 24, and an operator riding on the hopper 31 performs work such as inspection.

Since the hopper 31 is thus used also as a work gondola, work can be carried out by simply connecting the hanging rope 32 and attaching the handrail 38, and work preparation and cleanup can be performed quickly.

In addition, the handrail 38 is made of corrosion-resistant material and the hopper 31
It can also be permanently installed.

When washing the inside of the chimney 21 with water, the drain hose 34 is connected to the drain pipe 40.

After lifting the hopper 31 to the upper end of the chimney 21, the hopper 31 is gradually lowered and washed with water jetted from the nozzle 46.

The water supply hose of the nozzle 46 follows the descent of the hopper 31,
Change to the nearby water supply hose connection port 43.

When washing is performed while the hopper 31 is gradually lowered in this manner, the chimney 21 is only covered with washing water near the washing position, so that the lining is not adversely affected by a large amount of washing water.

In addition, since the hopper 31 is also used as a work gondola to enable quick preparation for work, the nozzle 46 is connected to the water supply hose connection port 43 instead of spraying cleaning water from the manhole of the chimney 21 as in the past. Water can be washed from the inside, so the entire inner surface of the chimney 21 can be cleaned well.

Furthermore, the water jet pressure can be lowered to prevent damage to the lining.

If the scaffolding 48 is placed on the hopper 31 during the work, the work can be carried out stably and the operator can be prevented from being immersed in the washing water.

It is also possible to perform the washing operation unmanned, in which case the operator only has to manage the lifting and lowering of the hopper 31 and the vertical movement of the water supply and drainage hose.

As explained above, according to the present invention, since the hopper can be used as a work gondola, work such as inspection and cleaning of the inside of the chimney can be carried out quickly without requiring preparation time.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of a conventional chimney, Figs. 2 to 5 show an embodiment of the present invention, Fig. 2 is a sectional view of the chimney, Fig. 3 is an enlarged sectional view of the hopper, and Fig. 4 is a sectional view of the hopper. FIG. 5 is an enlarged cross-sectional view showing the drainage part at the bottom of the chimney, and a plan view of a modified example of the movable support base. 21... Chimney, 22... Steel tower, 23.
...Opening, 24...Lifting device, 25
...Movable support stand, 28...Winch,
31...Hopper that doubles as a workbench, 32...
...Hanging rope, 34...Drain hose, 36...
...Lining, 37...Seal plate, 39.
...Hopper support stand, 40...Drain pipe, 43...Water supply hose connection port.

Claims (1)

[Scope of utility model registration request] A chimney having a lifting device for suspending a hanging cable inside the chimney, which doubles as a working gondola, characterized in that it is equipped with a hopper that is normally installed at the lower part of the chimney and is also used as a working gondola and can be raised and lowered by the hanging cable. chimney hopper