JPS604990Y2 - Loading/unloading device for fixed duct for dust collection in coke oven coal car - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a fixed duct loading/unloading device used when installing or replacing a fixed duct for dust collection in a coke oven coal car.

As shown in FIG. 1, when coal is charged into the carbonization chamber 2 of the coke oven 1 using the coal charging car 3, dust-containing gas ejected from the coal charging hole 4 is captured by the charging hood 5 and ignited and combusted. After this, the fixed duct 6 installed parallel to the coke oven group.
It is introduced into the air, is removed and cleaned by a large dust collector 7 installed on the ground, and then released into the atmosphere.

The coal loading car dust collection fixed duct 6 is usually arranged at the upper end of the furnace opposite to the coke oven riser pipe 8, that is, at the upper end of the furnace on the coke side.

When installing or replacing the above fixed duct, conventionally a tow truck is used to bring in and take out the fixed duct 6, but on the coke side there are a coke guide car rail 9, a fire truck rail 10, a coke wharf 11, and a guide Because a fixed duct 12 for car dust collection etc. is provided, it is necessary to use an abnormally large tow truck, and when the trolley wire 13 for the coal loading car is installed at the upper end of the coke side furnace. In this case, it is impossible to carry in and out the fixed duct 6 without temporarily removing the trolley wire 13, and the coke oven must be left empty or the unloading operation must be interrupted for a long time. .

This method not only adversely affects the life span and productivity of the coke oven, but also has drawbacks such as high installation costs.

Therefore, we have no choice but to carry out partial repairs.

This idea was made in view of the above circumstances. - A fixed duct loading/unloading device for coal loading car dust collection, which allows fixed duct loading/unloading using the kiln unloading interval without interrupting the operation of the coke oven. This is what we provide.

That is, in this invention, a rail that is orthogonal to the coal car rail is arranged on a cart that can freely run on the coke oven coal car rail, and a table cart having a table that can be raised and lowered is movably placed on the rail. Load the duct on top and carry it in.
This is a device for carrying in and out a fixed duct for dust collection in a coke oven coal car, which is characterized by being carried out.

The details of this invention will be explained below based on FIGS. 2 to 4 showing an example of implementation.

Wheels 22 are placed on rails 21 laid on the top of the coke oven 1.
A movable trolley 23 is placed thereon.

The furnace longitudinal frame 24 of the truck 23 also serves as a rail, and one end thereof reaches below the fixed duct 6.

In addition, outriggers 2 are provided at both ends of the trolley 23 in the furnace length direction.
5 is provided so that the trolley 23 can be fixed.

A table cart 27 is mounted on the upper surface of the frame 24 of the cart 23 so as to be movable via wheels 26, and a table for loading ducts is mounted on the upper surface of the table cart 27, which is raised and lowered via a lift rod 29 by the operation of a cylinder 28. 30 will be provided.

Further, a brake wheel 31 is provided at the center of the axle of one wheel 26 of the table cart 27, and when the nodule 32 is pulled downward, a brake band 33 tightens the brake wheel 31, and the table cart 27 is moved. be configured so that it can be suppressed.

Next, a case will be described in which the fixed duct 6 is replaced using two carts 23 configured as described above.

The 232 trolleys are moved to the fixed duct 6a position to be removed at predetermined intervals, and then the outriggers 25
At the same time, the table cart 27 is moved to the lower part of the existing fixed duct 6a, and the handle 32 is pulled downward to stop the table cart 27.
8 to bring the table 30 into contact with the lower surface of the fixed duct 6a.

Next, cut both ends of the replacement part of the fixed duct 6a, or remove the flange in the case of flange connection and cut the edges. Then, operate the cylinder 28 to raise the table 30 completely and attach the cut fixed duct 6a to the bracket. 34, lift the handle 32 upward to release the brake of the table cart 27, move the table cart 27 toward the center of the furnace chamber, and carry it out from above the bracket 34.

Then, the cut fixed duct 6a is transported to the ground by a tow truck or the like by moving the truck 23 to the end deck of the coke oven bank.

After suspending the edge-cut duct 6a to the ground, a new duct 6 having the same dimensions as the edge-cut duct 6a is lifted from the ground by a tow truck, etc., and the loading cart 23 is moved onto the table 30 of the cart 23 to remove the tact position. The new tact 6 will be located at

Thereafter, the outrigger 25 is lowered to the furnace top surface to fix the cart 23, the cylinder 28 is actuated to raise the table 30, the new duct 6 is lifted higher than the upper position of the bracket 34, and the table cart 27 is moved. After that, the new duct 6 is carried in, the nozzle 32 is pulled downward to stop the table cart 27, the cylinder 28 is activated, the table 30 is lowered, and the new duct 6 is moved to the bracket 34.
Place it on top.

After raising the outrigger 25, the trolley 23
The duct 6b is moved to the position of the next duct 6b to be removed, and the ducts are replaced one after another by repeating the same operation.

Therefore, when carrying in or out the duct with the duct suspended by a tow truck, etc., the trolley wire of the coal loading car placed above the fixed duct is temporarily removed because the duct is carried in or out while being suspended from above. If not, duct installation,
However, according to the present invention, the coke oven group is loaded onto a trolley and transported, and the duct is lifted from the top of the furnace to carry it in and out, so the trolley wire of the coal loading car can be removed. The duct can be brought in and taken out without any problems, and there is no need to stop the coke oven operation for a long time.In addition, if the fixed duct is connected with a flange at a specified length, the old and new ducts can be replaced when it is time to unload the kiln. This is extremely advantageous because it can be used as is by flange connection.

In addition, in one example of implementation, we have described the case where a fixed duct is replaced using two carts that can freely run on the coal loading car rails. The same effect can be obtained by placing a table cart with a wide width or a wide table cart, but it is better to use multiple carts by adjusting the spacing between the carts according to the length of the duct. This is advantageous because it can be adjusted freely.

As described above, according to the present invention, even when the trolley wire of the coal loading car is installed above the fixed duct for dust collection of the coal loading car, the duct can be carried in and out from the upper side of the furnace. , there is no need to temporarily remove the trolley wire,
It is possible to sequentially replace fixed ducts and install new ones using only the kiln exit time.

Therefore, it is possible to replace the fixed duct or install a new one without affecting the operation of the coke oven.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of a coke oven coal car dust collection device, Fig. 2 is a side view of the duct loading/unloading device of the present invention, Fig. 3 is an explanatory diagram of a braking device for a table cart, and Fig. 4 is an explanatory diagram of a fixed duct. It is a replacement explanatory diagram. In the figure, 1... Coke oven, 2... Carbonization chamber, 3... Coal charging car, 4... Coal charging hole, 5
...Charging hood, 6.12...Fixed duct, 7...Dust collector, Death...Rising pipe,
9... Coke guide car rail, 10...
Fire truck rail, 11...Cork Wharf, 13...
...Trolley wire, 21...Coal loading car rail, 2
2, 26...Wheel, 23...Dolly, 2
4... Frame body, 25... Outrigger-1
27...Table trolley, 28...Cylinder, 29...Lift rod, 30...
Table, 31... Brake wheel, 32...
...Handle, 33...Brake band, 3
4...Bracket.

Claims (1)

[Scope of utility model registration request] A rail that is perpendicular to the coal car rail is arranged on a trolley that can run freely on the coke oven coal car rail, a table cart with a table that can be raised and lowered is movably placed on the rail, and a duct is loaded on the table. A device for carrying in and out a fixed duct for collecting dust in a coke oven coal car.