JPS63112685A - Method of water sprinkle quenching of coke - Google Patents

Abstract

PURPOSE:To improve the yield and quality of a product through elimination of incomplete quenching, by selecting a suitable water sprinkle travel pattern from among water sprinkle patterns predetermined based on the data detected on wind direction and wind velocity around a quenching tower and travelling a quenching car according to the pattern. CONSTITUTION:In conducting water sprinkle quenching of red-hot coke carried on a quenching car, wind direction and wind velocity around a quenching tower are previously detected, and water sprinkle travel pattern are set. A suitable pattern is selected from the water sprinkle travel patterns as set above, and the quenching car is travelled within the quenching tower according to the travel pattern. This enables the whole red-hot coke to be homogeneously sprinkled. Therefore, incomplete quenching attributed to uneven sprinkling can be eliminated, so that the yield and quality of product in the coke production can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a method for extinguishing red-hot coke discharged from a coke oven by spraying water in a fire extinguishing tower.

BACKGROUND TECHNOLOGY - Red-hot coke carbonized in a coke oven carbonization chamber is generally extruded by an extruder, loaded onto a fire extinguishing truck, and cooled by extinguishing it with water in a fire extinguishing tower.

To extinguish a fire with water in a fire tower, water is pumped up and stored in a water storage tank installed at the top of the fire tower, and when the fire engine enters the fire tower and stops, the water valve is opened and the red-hot coke on the fire engine is released. The fire was extinguished by spraying water.

The water spraying starts when a detector installed on the ground detects that the fire engine has entered and stopped at a fixed position inside the fire tower, or the position detection mechanism of the fire engine automatic control device detects this.
This is done by outputting a command to start watering, and a timer is often used to maintain the watering state until the required watering time has elapsed depending on the quality of the coking coal and the intended use of the product.

Once the fire had been extinguished with water, it would stop for a certain period of time to drain water, then drive to the coke wharf and unload the extinguishing coke.

Recently, coke plants are becoming increasingly unmanned due to automation, and as a result, it is no longer possible to visually check water sprinkling and unextinguished coke, which was done in the past. There is a danger that this may occur.

On the other hand, fire extinguishing towers in coke factories are installed between the coke oven groups when multiple coke oven groups are installed in succession, and coke guide trucks and fire extinguishing trucks are installed inside the fire extinguishing tower. The structure has an open bottom at both ends so that it can pass through, and is configured so that it can be used commonly in the event of a breakdown of the coke guide truck or fire extinguisher truck.

In a fire tower with the structure where both ends and lower parts are open, the atmosphere can pass through the tower, so the fire water sprayed from the top is affected by the wind direction and speed around the fire tower, and the fire extinguisher is parked at a fixed location. It may happen that it is not evenly distributed.

Traditionally, changes in water spray conditions due to wind direction and wind speed inside a fire tower were
The driver of the fire engine visually confirmed the situation and took action by moving the fire engine to ensure uniform water spraying. However, since visual confirmation is not possible with unmanned fire extinguishing trucks that operate under automatic control, countermeasures are desired.

Problems to be Solved by the Invention This invention solves the problem of water spray failure that occurs due to changes in wind direction and wind speed when extinguishing red-hot coke loaded on a fire extinguisher with water under conditions where the wind direction and wind speed change within the tower. This paper proposes a coke water extinguishing method using automatic control, with the aim of completely eliminating the generation of unextinguished coke due to a partial lack of uniform water spraying.

Means for Solving the Problems The inventors have conducted various studies on how to prevent the generation of unextinguished coke due to a partial insufficient amount of water sprayed due to uneven water spraying when extinguishing red hot coke in a fire extinguishing tower. By setting a number of water sprinkling patterns in advance that take into account the wind direction and wind speed around the tower, and then selecting the water sprinkling pattern that matches the wind direction and wind speed measured at the time of extinguishing the fire, you can prevent the generation of unextinguished coke due to insufficient water spray. Find out what you can do,
This invention was completed.

That is, this invention detects the wind direction and wind speed around the fire tower when extinguishing red-hot coke loaded on a fire extinguisher with water, and measures the wind direction and wind speed around the fire tower in advance based on the detected values. The purpose is to select a corresponding water sprinkling travel pattern from the set water sprinkling travel patterns, and to make the fire extinguishing vehicle travel within the fire extinguishing tower based on the selected travel pattern.

Function: As described above, this invention selects a water sprinkling travel pattern that matches the wind direction and wind speed at the time of extinguishing a fire from among a large number of water spray travel patterns that are set in advance in response to changes in wind direction and wind speed around the fire tower. Since the fire is extinguished with water, it is possible to eliminate the effects of changes in wind direction and wind speed, and as a result, it is possible to eliminate partial shortages in the amount of water sprinkled due to unevenness in the amount of water sprinkled, and to prevent the generation of unextinguished coke.

Example Embodiments of this invention will be described based on the drawings.

Figure 1 specifically shows the automatic operation control method for a fire extinguisher (1), in which a large number of wires are twisted at different pitches to enable data transmission along the entire travel route of the fire extinguisher (1). A paired cable (hereinafter referred to as IR cable) consisting of pairs of wires is installed, and its starting end (2) is connected to the ground station (3).
Connects to the data transmitting/receiving section (4) of. This data transmitting/receiving section (4) is connected to a control device (6) via a communication control section (5). The control device (6) includes an operation panel (
7), a printer (8), and a CRT (9) are connected.

On the other hand, the antenna (
The transmitter/receiver (12) connected to the fire extinguisher controller (
13) and transmits information and commands between the ground station (3) and the fire engine (13) detected by the fire engine control unit (13).
1) is configured so that absolute position information is exchanged.

The ground station (3) has wind direction installed around this external fire tower,
Information on wind direction and wind speed is input between the anemometer (14) and a fire tower (not shown), and commands and information such as water storage tank level, opening/closing of sprinkler valves, starting and stopping of water pumps, etc. Other necessary information such as whether the coke wharf is full or empty is input and output between the coke wharf and the extruder, such as extruder position information, extrusion preparation completion, extrusion start/end commands and information, etc.

Now, from the right side, there are 4 coke ovens: A oven, B oven, C oven, and D oven.
A case will be explained in which the fire extinguishing tower is composed of two furnace groups, a common fire extinguishing tower is installed between the B furnace and the C furnace, and three water spray running patterns are installed depending on the wind direction and wind speed.

As shown in Figure 2, the fire engine (1) stopped at the fixed position O of the fire tower will spray water normally regardless of the wind direction when the wind speed is 5 m/Sec or less, regardless of the wind direction. Travel 500m towards A furnace from Shina for about 25 seconds
After stopping, drive in the opposite direction and return to the regular position O.
It travels 500mm towards the furnace and stops for about 25 seconds. With this watering travel pattern, the stud travels back for a predetermined watering time.

If the wind direction is from the D furnace side to the A furnace side due to a strong wind speed of 5 m/Sec or more, run for 1500 m to the A furnace side while sprinkling water, stop at about 453 eC, then reverse the direction and move to the A furnace side, as shown in M2. It returned to position O, ran approximately 00m toward D furnace, and stopped for 453ec. With this watering travel pattern, the stud travels back for a predetermined watering time.

Similarly, when the wind speed is 5 m/sec or more and the wind direction is opposite to M2, it is shown as @:M3. In this case, after traveling 1500 m from the fixed position O to the D furnace side and stopping for about 45 seconds, it runs in the opposite direction and returns to the fixed position O, roughly traveling 500 m towards the A furnace side and stopping for about 4 seconds.

With this watering travel pattern, the stud travels back for a predetermined watering time.

The water sprinkler driving pattern set in advance is a normal driving pattern in light winds or below, taking into consideration the environment where the fire tower is installed and other conditions, and in case of strong winds, the watering pattern is set in a normal driving pattern, and in case of strong winds, the fire truck is driven downwind from the fixed position where it stops. Depending on the actual situation, the distance is set to be long, the stopping time is also long, and the traveling distance to the windward side is shortened.

In addition, the vehicle is not limited to reciprocating travel, and can also travel only to the leeward side.

Effects of the Invention This invention performs water spray extinguishing work by a fire truck at a fire tower by selecting the appropriate one from among a plurality of preset water spray travel patterns, depending on the wind direction and wind speed at the time of water spraying, and spraying the entire red-hot coke. Since water can be sprayed uniformly, incomplete extinguishing due to uneven water spraying is eliminated, and product yield and quality in coke production can be improved.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing an example of an automatic operation control device for a fire extinguishing vehicle necessary to carry out the present invention, and Fig. 2 is an explanatory diagram showing a water sprinkling travel pattern in a fire extinguishing tower in an embodiment of the present invention. It is. DESCRIPTION OF SYMBOLS 1... Fire engine, 3... Ground station, 4... Data transmission/reception part, 5... Communication control part, 6... Control device, 10... Onboard station, 11... Antenna ,
12... Transmission/reception unit, 13... Fire engine control unit, 1
4...Wind direction/anemometer, Figure 1 Figure 2 (fixed position)

Claims (1)

[Claims] When extinguishing red-hot coke loaded on a fire extinguisher with water,
The wind direction and wind speed around the fire tower are detected, and based on the detected values, the corresponding water sprinkling travel pattern is selected from among the water sprinkling travel patterns previously set corresponding to the wind direction and wind speed around the fire tower. A coke water extinguishing method characterized by causing a fire extinguisher to run within a fire extinguishing tower based on a pattern.