JPS5842422Y2 - Charging device for coke dry fire extinguishing equipment - Google Patents

Description

[Detailed description of the invention] This invention relates to a charging device for coke dry extinguishing equipment, and when charging coke transported in packets into a furnace, the particle size distribution on the charging surface, The aim is to improve the sediment distribution.

A conventional charging device will be explained with reference to FIG.

FIG. 1 shows a charging device having a conventional structure, and shows a state in which coke is charged when the lid is opened.

In the Gokoku, 1 is a cart that moves horizontally, and on the cart 1 are an upper hopper (receiving hopper) 2 and a lower hopper 3 for charging raw materials, and a receiving hopper 3 for when raw materials are not charged. Canopies 4 are arranged side by side and are used selectively at appropriate times.

Reference numeral 5 denotes a hydraulic cylinder that moves the cart 1 and operates a link mechanism 6 to raise or lower the canopy 4 as appropriate, or to raise or lower the sealing mechanism 7 of the hopper 3 (
(details omitted).

That is, in the state shown in FIG. 1, the canopy 4 is raised, and the upper and lower hoppers 2 and 3 are mounted on the charging port 9 of the furnace body 8 via the seal mechanism 7, so that coke can be charged.

In the figure, 10 indicates a coke packet, and 11 indicates a bottom lid of the coke bucket.

After charging, the moder cylinder 5 and link mechanism 6
to lift the sealing mechanism 7 of the upper and lower hoppers 2 and 3 upward (details omitted) and at the same time move the trolley 1 to the left in the figure, and when it is in position, lower the canopy 4 and cover the top of the charging port 9. Do as you please.

When charging coke with a charging device configured as described above, no measures are taken to control particle size distribution, so
The charging surface distribution is inverted V-shaped with fine grains at the center and coarse grains at the periphery, and as a result, the cooling gas flow in the cooling chamber tends to be a peripheral flow, and furthermore, the plasting device may be located in the furnace core. Coupled with this, heat transfer between the cooling gas and the surface of the coke grains is extremely ineffective, leading to an increase in the amount of cooling gas and an increase in the chamber volume, which is a major problem in terms of equipment investment.

Therefore, the present invention aims to reduce the cooling effect caused by the inverted V-shaped pattern of center fine grains and peripheral coarse grains found in these conventional equipment. The object is to provide a charging device that ensures distribution.

Next, the contents of the present invention will be explained based on the structural diagram shown in FIG.

The difference between the conventional structure and the device of the present invention is that the upper hopper 2 has a shape and support structure, and the parts similar to the lower hopper 3 are replaced by a rotating chute 16 and a dust collection hood 14. A canopy 4 is mounted, and a trolley 1 for selectively using the canopy 4 is not used.

Therefore, a canopy 18° 19 (permanently installed) equipped with a ring gear 22 and a seal portion 20, 21 for mounting the rotating chute 16 and driving the chute to rotate is provided, and the rotating chute 16 fixed on the canopy 18 can be rotated. The sealing canopy 32 is located above the upper hopper 2' when no raw materials are being charged.

In the figure, 2' is the hopper, which is installed on a fixed beam on the frame via a spring 13, and the discharge port is the rotating chute 1.
Located on the central axis of 6.

Further, as a dust-proofing measure during charging, a dust collecting hood 14 is provided at the bottom of the hopper 2', and the dust is led to a dust collecting device via a suction duct 15.

Furthermore, for gas sealing when raw materials are not being charged, a hydraulic cylinder 35 is used and a sealing lid 32 is provided which is detachable via a gate-shaped lever 33 and a link plate 34.

Next, the rotating chute mechanism, which is a feature of the present invention, will be described.

A swing chute 16 lined with a wear-resistant liner 17 is mounted on a canopy 18 whose lower part is lined with a refractory lining 19 to cope with the high-temperature atmosphere inside the furnace, and a ring gear 22 attached to the outer periphery of the canopy 18 is installed. The electric motor 29, the reduction gear 28, the gear devices 27 and 26, and the pinion gear 23 are driven to rotate in this order.

Also, the canopy hood 18 has several (6 to 8) support rollers 2.
5 and a side gear 24 for centering make the pivoting movement possible.

Since the canopy 18 carrying the rotating chute 16 is always located at the furnace mouth 9, it is equipped with a dust seal plate 20 and a gas seal 21.

Further, for the purpose of dust sealing the gap between the canopies 18, 19 and the furnace body 8 and for cooling, purge pipes 31 are provided which are bypassed from the circulation gas line (cooling gas line) and are arranged evenly around the circumference via annular pipes 30.

Regarding the use of the seal lid 32 and the gas seal method, when charging, the seal lid 32 is removed from above the hopper 2' by the hydraulic cylinder 35, and the coke packet 10 is placed in the hopper 2.
’ to be installed on top.

In addition, by compressing the spring 13 using the hydraulic cylinder 12 and loosening the seal packing 36 between the swing chute 16 and the dust collection hood 14, the swing chute 1
It frees the movement of 6.

When the vehicle is unloaded, the hydraulic cylinder 12 is used to extend the spring 13 to press the seal gasket 36 between the rotating chute 16 and the dust collecting hood 14 to seal the gas.

Further, after the coke packet 10 is attached and detached, the hydraulic cylinder 35 is operated to attach the sealing lid 32 onto the hopper 2', thereby completing gas sealing of the entire system.

As described above, according to the present invention, the overall height of the device is almost the same as that of the conventional type, and since it does not have a cart that moves horizontally, the frame structure is simple and the installation space is reduced. A V-shaped distribution of incoming coke, that is, coarse grains at the center and fine grains at the periphery, is obtained by charging the coke through a rotating chute, which is extremely effective in improving thermal efficiency.

[Brief explanation of drawings]

FIG. 1 is a front view for explaining a conventional device, and FIG. 2 is a front view for explaining the device of the present invention. 1 is a trolley, 2 and 2' are upper hoppers, 3 is a lower hopper, 4 is a canopy, 5 is a cylinder, 6 is a link mechanism, 7 is a seal mechanism, 8 is a furnace body, 9 is a charging port, 10 is a coke packet, 11 is the bottom lid of the coke packet, 12 is a hydraulic cylinder, 13 is a spring, 14 is a dust collection hood, 15 is a duct, 16 is a rotating chute, 17 is a wear-resistant liner, 1
8 is a canopy, 19 is a refractory lining at the bottom of the canopy, 20 is a dust seal plate, 21 is a gas seal mechanism, 22 is a ring gear, 23 is a pinion gear, 124 is a side gear, 25 is a support roller, 26.27 is a bevel gear, 28
is a speed reducer, 29 is an electric motor, 30 is a purge annular pipe, 31
is a purge pipe, 32 is a sealing lid, 33 is a recessed lever, 34
is a link plate, 35 is a hydraulic cylinder, and 36 is a seal packing.

Claims (1)

[Scope of utility model registration request] A charging device for coke dry extinguishing equipment, characterized in that a hopper is provided above a rotating chute permanently installed in the upper part of a furnace body, and a canopy is provided for sealing the hopper when coke is not charged.