JPS5859283A - Coke charging device in coke dry quenching apparatus - Google Patents

Abstract

PURPOSE:To even particle size distribution of coke and to increase efficiency of heat exchange, by providing a plurality of charging holes peripherally on the top wall of a cooling tower and installing a coke charging chute vertically movably and rotatably. CONSTITUTION:In charging coke 11 to a quenching tower 1, a cover 7 of an arbitrary charging hole 3 is opened, a chute 13 is rotated so that the bottom end is positioned directly above the charging holes 3, and the bottom end of the chute 13 is lowered and engaged with the feeding hole 3. A bucket 10 loaded with the redhot coke 11 is lowered on a stationary hopper 12 and the coke 11 is charged through the holl 3 to the quenching tower 1. The coke 11 is piled up eccentrically in the tower 1. Upon completion of the charging, the bucket 10 is raised and the chute 13 is simultaneously raised, rotated to a waiting position and waits for the next charging with the cover 7 being closed. Then the procedure is successively carried out repeatedly for other charging holes 3. Thus it is possible to obtain uniform particle size distribution in the cooling tower 1.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a coke charging device in a coke dry cooling film +1=.

In coke dry cooling equipment, as shown in Figure 1,
Red-hot coke (
The charging packet (b) for loading α) is fixed to the hopper (C)-hi provided at the top of the cooling tower (td), and
Otsu is trying to charge red hot coke (α) into J! Of the red-hot coke (α) in the cooling tower (d), coarse coke tends to segregate at the periphery of the cooling tower (fd), while minute coke tends to segregate at the center of the cooling tower (d). In particular, this tendency is stronger as the inner diameter of the cooling tower td) becomes larger, and if there is segregation in the packet (b) due to extrusion from the coke oven, this will persist even after charging into the trench. This non-uniform forward direction in the circumferential direction is superimposed on the segregation in the radial direction, and the non-uniform state becomes even more pronounced. As a result, a drift occurs in the gas flow in the cooling tower (d), and heat exchange between the gas and the coke (α) is not performed uniformly, resulting in variations in the temperature of the coke drawn out. However, the temperature of the heated gas also differs depending on the location of the JM, and as a whole, the heat recovery efficiency decreases, leading to the production of defective products.

The present invention has been developed in view of the above circumstances, and a plurality of charging ports are bored in the circumferential position of the top wall of the cooling tower in the coke dry cooling installation hole, and a plurality of charging ports are provided above the cooling tower from the bucket. A coke dry type, comprising a fixed hopper for receiving coke, and a unit for charging the coke from the hopper through the charging port into the cooling tower, which is provided at the lower part of the hopper so as to be able to rise and fall and rotate. This relates to a coke charging device in cooling equipment.

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

As shown in FIGS. 2 and 3, in coke dry cooling equipment, a plurality of (four in the figure) coke charging ports (3) are located at circumferential positions on the top wall (2) of the cooling tower (1). )
At the same time, assemble a mount (4) above the top wall (2) of the cooling tower (1) so as not to intersect with each charging port (3) when viewed from the top. Charging port (3)
A water seal trough (51f) is provided on the edge of the water seal trough (51f).
) and the corresponding scar) (61i, N hearth lid (7)
Each furnace cover (7)' is appropriately connected to a rod (9) of a sill (8) attached to the pedestal (4) to form a vaginal opening.

In addition, a fixed hopper 04 is provided in the middle and above the cooling tower (1) to accommodate the coke charging device in the bucket, and the coke Oυ from the fixed hopper 04 is transferred to each of the charging ports (3). In order to charge the cooling tower (1) further into the cooling tower (1), the upper end of the inclined sheet 0 is shaped so as to be able to engage and communicate with the lower end feeder inlet (3) under the fixed hopper 04'). is provided so as to be able to turn and go up and down via the knoll α41, and the upper end side turning axis position of the sea) (1#, 7-+- pull (
It is fixed vertically to the foot 08J' of the disc-shaped table Q7J that can be driven by the motor attached to the motor 151, and
An appropriate number of support rollers 09 are provided on the table αω to support the disc-shaped table Q71, and the entire load of the chute 03 is supported by the support roller bending through the force of the disc-shaped table Q71. The sheet Q1 is configured to be able to rotate by driving, and the inventory table CIQ is
A suitable number of elevating flanges (A) are installed between the flange and the frame (4), and the chute is moved up and down by the expansion and contraction movement of the flanges, so that the lower end of the chute (13) fits into the charging port (3). ^1 It is constructed so that it can be removed. Note that ■υ is a skirt provided on the outer periphery of the lower end of the 7-piece 04 so as to correspond to the water-sealing trough (5) at the edge of the charging port (3).

Next, the operation will be explained.

First of all, if you have not yet done the work of charging 0υ into the cooling tower (1), operate the sill 0υ on the pedestal (4) and remove the table 09, support roller Oth, and circle shape. Ascend Net03 via table αη, @α鵠, etc.
(1; 1 syllable turn, this nyu) The lower end of Ql is kept in a standby position, as shown by the imaginary line in FIG. 3, in a position where it does not interfere with the opening and closing operations of each furnace lid (7). In this case, the skirt (6) of the valley furnace lid (7) is fitted into the water seal trough (5) at the edge of each charging port (6), so gas leaks from the valley charging port (3). There is no problem.

Next, when charging coke Ov into the cooling tower (1), retract the rod (9) of the furnace lid (7) in the arbitrary charging port (3). It opens by sliding it,
After that, the chute (1:i i,
The chute 04 is rotated by the motor Ib so that the lower end of the chute 04 is located directly above the charging port (3) to be opened, and the chute 04 is moved so that the lower end of the chute 04 is positioned directly above the charging port (3) to be opened. (3) At the point of contact, it is lowered by a wire.

At this time, the skirt seal υ on the outer circumference of the lower end of the chute 04 fits into the water seal trough (5) at the edge of the charging port (3), and the upper end seal 04 of the chute 04 fits into the lower end flange of the fixed hopper 0. In close contact.

In such a state, a packet (T) loaded with red-hot coke (1η) is lowered onto the fixed hopper Q, and 0υ of coke is transferred to the cooling tower from the charging port (3) through the fixed hopper Q4 and the fixed hopper Q4. (1).At this time, since the charging port (3) is located eccentrically from the center of the top wall (2) of the cooling tower (1), the charging port (3) is The coke Ql) also accumulates eccentrically in the cooling tower (1).

When the charging of the coke (1) J in the bucket (CM) is completed, the packet on 'i is raised, and at the same time, the 04 is raised and further rotated at the standby position 1, after which the furnace lid (7) is closed. Then, wait at the next charging port (3).Then, repeat the above steps in order at the other charging ports (3).The charging order is normally set for each charging port (3). It is efficient and preferable to perform the rotation sequentially in a certain rotation direction, but
They may be performed in any order.

By charging 0υ of coke in this manner, a uniform particle size distribution can be obtained in the cooling tower (1), and the heat exchange efficiency can be increased.

It should be noted that the present invention is not limited to the above-mentioned embodiments. For example, the rotating device and lifting device of the chute 04 may be of other types, and the present device 6 is capable of recovering heat from high-temperature lumpy solids other than coke. It goes without saying that it can also be used as a device, and other modifications can be made without departing from the gist of the present invention.

As mentioned above, according to the present invention, (1) Since a plurality of charging ports are provided in the top wall of the cooling tower, which are eccentric to the center of the cooling tower, large items can be charged by eccentrically charging the cokes. )^'' The tendency for small particles on the sides to be concentrated in the center is improved, so the particle size distribution in the radial direction of the cooling tower is improved. By charging from multiple charging ports, It is also effective in improving the non-uniformity of the circumferential method, and even if there is particle size segregation within the packet, it is improved, and therefore a more uniform particle size distribution can be obtained compared to the conventional charging from one place in the center of the cooling tower.

(11) Since the particle size distribution becomes uniform, the efficiency of heat exchange increases, so the amount of recovered heat increases and the coke can be cooled to a uniform temperature, thus increasing the cooling capacity in the same cooling tower. (iii) From the above item (11), it is possible to downsize the cooling tower to obtain the same cooling capacity.

(1v) Charging can be performed in any order depending on the operating conditions.

It is possible to simulate excellent effects such as

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of a conventional example, FIG. 2 is a partially cutaway side view of the apparatus of the present invention, and FIG. 6 is a view taken from the Tagata direction in FIG. (1)...Cooling tower, (2)...Top wall, (3)...
・Charging port, (4)°・Rack, (7)...furnace lid, 01)
...Coke, 04...Fixed hopper, (1...Chute, (A)...Motor, Han...Solinda. Patent applicant Ishikawajima Harima Heavy Industries Co., Ltd.

Claims (1)

[Claims] 1) In a coke dry cooling equipment, a plurality of charging ports are provided at positions in the circumferential direction of one straight wall of the cooling tower, and a fixed hopper is provided above the cooling tower to collect coke from the packets, and the coke from the hopper is A coke charging device for coke dry cooling equipment, characterized in that a chute for charging coke into a cooling tower through the entire charging port is provided at the bottom of the hopper so that it can be raised and lowered and rotated.