JPS6011079Y2 - Coke charging device in coke dry fire extinguishing equipment - Google Patents

Description

[Detailed description of the invention] The present invention reduces particle size segregation of coke in a cooling tower.
This invention relates to a coke charging device in coke dry extinguishing equipment.

As shown in Figure 1A, when red-hot coke is transferred from coke oven a to packet b, in packet b,
Particle size segregation occurs with fine particles C□ on the coke oven side and coarse particles C2 on the anti-coke oven side, and this particle size segregation is cooled as it is through the packet b1 charging hopper d when coke is charged, as shown in Figure 2. The cooling capacity of the cooling tower e is significantly reduced due to the local heat exchange performance in which the fine particles are difficult to cool while the coarse particles are easily cooled when brought into the tower e.

To prevent this particle size segregation, for example, the charging hopper can be rotated to uniformly disperse coarse and fine particles in the circumferential direction within the cooling tower, but conventional coke charging equipment does not allow the total amount of coke to be Since there was no means to receive the coke into the charging hopper once, after the entire amount of coke was discharged from the packet to the charging hopper, the packet was hoisted up and completely separated from the charging hopper until the charging hopper started rotating. , a considerable amount of coke had already fallen into the cooling tower in place, so even if the charging hopper was rotated,
Particle size segregation was not significantly reduced.

On the other hand, in order to rotate the charging hopper, a rotating device is naturally required, and a part of the rotating device is disposed outside the charging hopper.

Therefore, this rotating device must be moved every time the furnace lid is opened and closed, but this complicates the charging device itself and is not rational.

In addition, in conventional coke charging equipment, when opening the furnace lid, the third
As shown in the figure, first the furnace lid f was lifted upward, the furnace lid skirt h was removed from the water seal trough g, and then it was moved horizontally.

In other words, in conventional coke charging equipment, the raising and lowering operations of the furnace lid are essential, and if the charging hopper is fixed, there is a gap between the lower end of the charging hopper and the top of the furnace that controls the movement of the furnace lid. I had to create an extra gap for this.

This gap increases the distance the coke falls during charging, increases the pulverization of coke, and obstructs the dust collection operation during charging.

In view of this, the present invention has been devised for the purpose of providing a coke charging device for coke dry extinguishing equipment that can prevent particle size segregation without causing the above-mentioned problems. The cooling tower is characterized in that a rotatable charging hopper is provided at the top of the cooling tower in which the trough is installed, and a gate that can be opened and closed is provided at the bottom of the charging hopper.

Embodiments of the present invention will be described below with reference to the drawings.

A rail 3 is laid on the frame 2 of the cooling tower 1, and a furnace lid cart 5 equipped with a furnace lid 4 is placed on the rail 3 via wheels 6, and a furnace lid skirt 7 is placed around the furnace lid 4. At the same time, the lid truck 5 can be moved along the rails 3 by a lid opening/closing device 8 such as a hydraulic cylinder arranged on the frame 2, and a water-sealed trough such as a hydraulic cylinder is installed at the top of the cooling tower 1. A water seal trough 10 that can be raised and lowered by a lifting device 9 is provided, and an expansion joint 11 is attached to the water seal trough 10.

A ring-shaped rail 13 is laid on the upper frame 12, and a charging hopper 15 is placed on the rail 13 via wheels 14. An auxiliary hopper 20 which can be rotated by the device 19 and is connected to the lower end of the charging hopper 15 is provided with a gate 21 so as to close the opening at the lower end of the charging hopper 15.

In addition, in the figure, 22 is a packet for transporting red hot coke, and 23 is a packet for transporting red hot coke.
24 is a packet gate that can be opened and closed simultaneously on the left and right sides by a means not shown; 24 is fine red-hot coke; 25
is coarse-grained red-hot coke, A is on the coke oven side, and B is on the anti-coke oven side.

Next, the operation of the present invention will be explained.

The packet 22 containing the red-hot coke in front of the coke oven is hoisted up to the upper limit position by a hoisting machine (not shown),
It is transported as it is to the upper part of the cooling tower 1 (furnace top).

In this case, as shown in FIG. 4, the gate 21 and the furnace lid 4 are closed, the water seal trough 10 is raised and cooperates with the furnace lid skirt 7 to form a seal, and the swing drive device 19 is stopped. There is.

The packets 22 transported to the upper part of the cooling tower 1 are lowered to a required position by a hoisting machine, the packet gate 23 is opened, and the entire amount of red-hot coke is discharged into the charging hopper 15. After that, the packets in the chamber are rolled up. Although it is hoisted by the upper machine, when the packet 22 rises to a position where it does not interfere with the charging hopper 15, the water seal trough 10 is lowered by the water seal trough lifting manor 9 to a position where it does not interfere with the furnace lid skirt 7,
The turning drive device 19 is driven and the charging hopper 15 starts turning.

When the charging hopper 15 starts rotating, the furnace lid 4 is simultaneously opened by the rotating opening/closing device 8, and after the opening operation is completed, the gate 21 is opened and the red hot coke with particle size segregation in the charging hopper 15 is removed. Scattered over the entire area of Fufu Cooling Tower 1.

As a result, the particle size segregation of coke in the cooling tower 1 is reduced.

When the red hot coke has finished falling, the charging hopper 15 is stopped at a fixed position in preparation for the next charging, the furnace lid 4 and gate 21 are closed, and the water seal trough 10 is raised.

This completes one charging cycle. In addition, in the embodiment of the present invention, the case where a charging hopper that is not eccentric is used has been explained, but if an eccentric hopper is adopted, an even greater effect of reducing particle size segregation can be obtained, and the furnace cover opening/closing device, water seal trough lifting and lowering The device can use various means such as a rack-pinion instead of a hydraulic cylinder, and the swing drive device is not limited to bevel gears, but can also use various means such as ring gear pinions. Of course, various changes may be made without departing from the gist of the invention.

According to the coke charging device in the coke dry extinguishing equipment of the present invention, the particle size segregation of coke in the cooling tower is reduced, so it can have an excellent effect of increasing the heat exchange performance of the cooling tower.

[Brief explanation of the drawing]

Figures 1 and 2 are explanatory diagrams of the coke dry extinguishing equipment, Figure 3 is an explanatory diagram of the vicinity of the furnace cover of the cooling tower of the coke dry extinguishing equipment, and Figure 4 is the coke dry extinguishing equipment of the present invention. Fig. 5 is an explanatory diagram of the coke charging device in Fig. 4.
−■ Shows a direction arrow view. In the figure, 1 is a cooling tower, 7 is a furnace lid skirt, 8 is a furnace lid opening/closing device, 9 is a water seal trough lifting device, 10 is a water seal trough, 15 is a charging hopper, 19 is a swing drive device, and 21 is a gate. .

Claims (1)

[Scope of utility model registration request] A coke dry extinguishing system characterized by having a charging hopper that can be rotated at the top of a cooling tower equipped with a water seal trough that can be raised and lowered at the top of the furnace, and a gate that can be opened and closed at the bottom of the charging hopper. Coke charging equipment.