JPS6232982Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a coke charging device in a coke dry extinguishing facility that reduces particle size segregation of coke in a cooling tower.

As shown in Figure 1 A and B, when red-hot coke is transferred from a coke oven a to a bucket b, there is a particle size segregation in the bucket b, with fine particles c ₁ on the coke oven side and coarse particles c ₂ on the anti-coke oven side. When coke is charged, this particle size segregation is directly carried into the cooling tower e through the bucket b and charging hopper d, as shown in Fig. 2, and the fine particles are difficult to cool, and the coarse particles are difficult to cool. Due to the local heat exchange performance of easy cooling, the cooling capacity of the cooling tower e is significantly reduced.

In order to prevent particle size segregation in the cooling tower e, when the red-hot coke in the bucket b, which has coarse particles on the coke oven side and coarse particles on the anti-coke oven side, is dropped into the hopper d, the timing should be shifted to make the coke finer. It is sufficient to allow grains and coarse grains to fall separately.

However, conventionally, the opening degree adjustment of the two gates attached to the bucket bag B was done by hoisting the bucket bag,
Because the lowering operation was carried out simultaneously on the left and right sides, it was not possible to shift the timing of the coke fall.

Also, even if the timing of the coke fall can be shifted, the coke can
Because it was not possible to block the entire outlet, a sufficient effect of reducing particle size segregation could not be achieved. In other words, at the beginning of the fall when the falling flow rate is low, the coke does not completely block the outlet of the hopper d, and the coke continues to flow into the cooling tower e.
Because it fell inside, the charge was uneven.

In view of the above, the present invention was devised for the purpose of providing a coke charging device for coke dry extinguishing equipment that can prevent particle size segregation, and which alternately opens and closes a plurality of gates provided on the bucket body. A bucket gate opening/closing device, a gate provided at the bottom of the charging hopper and large enough to block the entire charging hopper outlet so as to temporarily receive the red hot coke introduced into the charging hopper from the bucket main body; This system is characterized by the provision of an auxiliary hopper that guides the discharged red-hot coke into the cooling tower.

Embodiments of the present invention will be described below based on the drawings.

A charging hopper 3 is fixed to the upper part of the cooling tower 1 via a frame 2, and a bucket receiving seat is provided on the side of the charging hopper 3 to receive a bucket gate opening/closing device 4 and a bucket main body 8, which can be raised and lowered like a hydraulic cylinder. Attach the auxiliary hopper 6 to the lower end of the charging hopper 3.
A gate 7 is provided in the auxiliary hopper 6 so as to close the opening at the lower end of the charging hopper 3. Further, a gap H is provided between the lower end of the auxiliary hopper 6 and the upper end of the cooling tower 1 so that a furnace cover (not shown) can be opened and closed.

A bucket leg 9 that rests on the bucket seat 5 and hanging rod guides 10, 11, 12 are fixed to the side surface of a bucket main body 8 for coke conveyance, and a stopper 13 is integrally fixed to the hanging rod guides 10, 11, 12. A hanging rod 14 is fitted so that the hanging rod 14 can move up and down along the hanging rod guides 10, 11, and 12, and a bucket trunk that can be opened and closed around a pin 15 is provided in the opening at the lower end of the bucket main body 8. A gate 16 is pivotally mounted, and a long hole 18 is provided above the gate opening/closing link 17 and the stopper 13 is provided with a long hole 18.
A gate support roller 20 is pivotally connected to one end of a shaft 21 fitted to a pin 19 protruding from both sides and attached to the lower end of a gate opening/closing link 17, and a bucket gate 16 is pivotally connected to the other end of the shaft 21.

In FIG. 3, A is the coke oven side, B is the anti-coke oven side, X is the red hot coke of fine particles charged into the cooling tower 1, and Y is the red hot coke of the same coarse particles.

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

The bucket main body 8, which has received the red-hot coke in front of the coke oven, is suspended from a hoisting machine (not shown) via a hanging rod 14, and is transported to the upper part (furnace top) of the cooling tower 1. During this transportation, the upper surface of the suspension rod 13 of the suspension rod 14 is in contact with the lower surface of the stopper 11. Also, the red hot coke inside the bucket body 8 is
Particle size segregation occurs between fine grains at the front of the coke oven and coarse grains at the anti-coke oven side.

When the bucket main body 8 is transported to a predetermined position above the cooling tower 1, the bucket main body 8 is lowered by a hoisting machine, and the bucket legs 9 of the bucket main body 8 are placed on the bucket seat 5 of the charging hopper 3.

When the bucket leg 9 rests on the bucket seat 5, the bucket main body 8 stops descending, and the bucket gate 16
The gate support roller 20 is supported by riding on the bucket gate opening/closing device 4 which is waiting at the upper limit position. Moreover, since the hoisting machine is still continuing its lowering operation, the bucket main body 8 does not descend, but the hanging rod 14 further descends, and when the stopper 13 of the hanging rod 14 comes into contact with the upper surface of the hanging rod guide 12, the lifting rod 14 stops the descent. At this time, the pins 19 on both sides of the stopper 13 fixed to the hanging rod 14 descend along the elongated hole 18 of the gate opening/closing link 17. When the hanging rod 14 is lowered, the gate support roller 20 is supported at the upper limit position of the bucket gate opening/closing device 4, and the bucket gate 16 is closed.

When the hanging rod 14 is lowered to the lower limit, the bucket gate opening/closing device 4 on the anti-coke oven side B is lowered, and the bucket gate 16 on the anti-coke oven side B is lowered.
is opened downward using the pin 15 as a fulcrum, and the coarse red-hot coke on the side opposite to the coke oven in the bucket body 8 is dropped into the charging hopper 3 with the gate 7 closed in advance, and the coarse grains are poured into the charging hopper 3. When a predetermined amount of coke has fallen, the bucket gate opening/closing device 4 on the anti-coke oven side B is raised to close the bucket gate 16, and then the gate 7 is opened to load the coarse red-hot coke into the cooling tower 1. Enter.

Immediately after charging the coarse grains, close the gate 7, then move the bucket gate opening/closing device 4 on the coke oven side A downward to open the bucket gate 16 on the coke oven side A, and release the fine grains on the coke oven side in the bucket. A predetermined amount of red hot coke is dropped into the charging hopper 3, the gate 7 is opened again, and fine red hot coke is charged into the cooling tower 1.

By alternately charging coarse and fine red hot coke, coarse red hot coke Y and fine red hot coke X form alternate layers in the cooling tower 1, and as a result, the cooling tower 1 The particle size segregation in is reduced. Furthermore, since the gate 16 is opened and closed by the bucket gate opening/closing device 4, it can be opened and closed reliably, and since the red hot coke falls straight down while blocking the outlet of the charging hopper 3, segregation is effectively prevented. The red hot coke falling from the charging hopper 3 is guided to the auxiliary hopper 6, so it does not scatter to the surroundings.

In addition, in the embodiment of the present invention, the case where the bucket gate opening/closing device is attached to the side of the charging hopper has been explained, but it can be attached to the charging hopper either by attaching it to the frame or by installing it on the bucket main body after applying heat insulation treatment. The segregation reduction function can be obtained by combining with the lower gate, and various types of bucket gate opening/closing devices can be used, such as a cylinder type or a pinion-rack type. Of course, various changes may be made without departing from the gist of the invention.

According to the coke charging device of the coke dry extinguishing equipment of the present invention, the particle size segregation on the coke oven side and the anti-coke oven side that occurs when red-hot coke is deposited in the bucket body from the coke oven causes the coke to be charged into the cooling tower. As the heat exchange performance of the cooling tower increases, the red hot coke is once received in the charging hopper and then charged into the cooling tower while blocking the outlet, so the red hot coke falls straight down and As a result, particle size segregation can be even better prevented, and since the gate of the bucket main body is opened and closed by an opening/closing device, it can be opened and closed reliably, and red-hot coke falling from the charging hopper is guided by an auxiliary hopper. Therefore, the red-hot coke is not scattered to the outside, and various excellent effects can be achieved, such as improving the yield.

[Brief explanation of drawings]

Figure 1 A, B and Figure 2 are explanatory diagrams of the coke dry extinguishing equipment, Figure 3 is an explanatory diagram of the coke charging device in the coke dry extinguishing equipment, and Figure 4 is a view taken in the - direction arrow of Figure 3. be. In the figure, 1 is a cooling tower, 3 is a charging hopper, 4 is a bucket gate opening/closing device, 6 is an auxiliary hopper, 7 is a gate, 8 is a bucket main body, 10, 11, 12 are hanging rod guides, 13 is a stopper, and 14 is a bucket gate opening/closing device. A hanging rod, 16 a bucket gate, 17 a gate opening/closing link, 18 a long hole, and 20 a gate support roller.

Claims (1)

[Scope of utility model registration request] A bucket gate opening/closing device that alternately opens and closes a plurality of gates provided on the bucket body, and a charging hopper outlet that is installed at the bottom of the charging hopper and is designed to temporarily receive the red-hot coke introduced from the bucket body into the charging hopper. A charging device for coke dry extinguishing equipment, characterized by being provided with a gate large enough to block the entire charging hopper, and an auxiliary hopper that guides red-hot coke discharged from the charging hopper into a cooling tower.