JPH0734143A - Operating method for cooler blower - Google Patents

Abstract

PURPOSE:To lessen the manpower for an operation work and to decrease operating energy-by automating operation timing and start and stop at the time of operating the cooler blowers for sintering for iron making. CONSTITUTION:A product is tracked from a sintering machine and a cooler is started just before this product arrives at the cooler. The No.1 cooler blower is started when the product arrives on the cooler. The No.2 cooler blower is started when the tracked product arrives at the No.2 cooler blower and the discharge temp. of the No.1 cooler blower attains a set temp. or above. The next cooler blowers are thereafter started successively under the AND conditions of the tracking value of the products and the discharge column temp. As a result, the cooler blower to be operated is automatically selected from the values of the product tracking and the value of the discharge column temp. of the cooler. The automatic operation and the control of the number of units are executed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of operating a cooler blower for sinter for iron making.

[0002]

2. Description of the Related Art As is well known, when sinter ore is produced by firing iron ore powder, cold air is blown to cool it from a hot state immediately after firing to a level that can be transported by a conveyor. The blower that blows this cool air is a cooler blower, and the cooling floor is a cooler.

When operating the cooler blower, at the same time as the operation of the sintering machine, the cooler blowers were operated one by one from the central cab by push buttons.

[0004]

Conventionally, since the driver has arbitrarily driven from the central cab, it is sufficient to operate the cooler blower immediately after the sintered product is put on the cooler after the start of operation, but at the start of operation, Since there are many other tasks to monitor and drive, and it is not possible to keep a driver in order to operate the cooler blower, actually start it before starting the sintering operation.

Further, since the sintered product temperature after cooling varies depending on the production amount, the firing temperature, and the outside air temperature, the number of operating cooler blowers may be set to four or three for energy saving operation. Was driving at the discretion of the driver.

Therefore, the operation of the cooler blower has been overwhelming with the monitoring operation load of the driver's monitoring and driving operation.

In addition, as described above, since the vehicle is operated on the safe side, the number of operating machines and the time required are actually exceeded, so that the energy loss of the operating electric machine is enormous.

In view of the above problems, it is an object of the present invention to automatically operate the operation timing and start / stop of a cooler blower to save labor in driving operation work and reduce operating energy loss.

[0009]

A method of operating a cooler blower according to the present invention comprises a plurality of cooler blowers, a cooler that cools sinter, a duct pipe that guides hot air from the cooler to the cooler blower, and a diffuser that diffuses the cooler blower to the outside air. It is equipped with a tower, a thermocouple that measures the temperature of hot air, and a control control computer that controls the operation time of the cooler blower, and the sintered product is tracked by the sintering machine to automatically operate the cooler blower.

The feature of the present invention resides in that the product is tracked from the above-mentioned sintering machine, the cooler is started immediately before the product arrives at the cooler, and when the product arrives on the cooler, N is reached.
O. 1 Start the cooler blower. Tracking product is N
O. No. 2 Arrived at Cooler Blower. If the exhaust temperature of the 1-cooler blower exceeds the set temperature, NO. Two
Start the cooler blower. Hereinafter, the next cooler blower is started under the AND condition of the product tracking value and the exhaust tower temperature.

Another feature of the present invention is that the cooler blower is automatically stopped when the temperature of the immediately preceding exhaust tower falls below a certain stop set temperature.

Another feature of the present invention is that when the cooler is stopped while the product is on the cooler and the product is restarted, NO. 1 When the cooler blower is started and the exhaust tower temperature is equal to or higher than the start temperature set value, NO. 2 Start the cooler blower and set NO. 2 If the exhaust tower temperature is equal to or higher than the starting temperature set value, NO. 3 Start Coola Coula Blower. Similarly, NO. 3 If the exhaust tower temperature is equal to or higher than the starting temperature set value, NO. 4 It starts the cooler blower. The control of the number of operating vehicles is the same as above.

[0013]

In the present invention, the operation timing and start / stop of the cooler blower can be automatically operated as described above to save labor in driving work and reduce operating energy loss.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the automatic operation of the cooler blower of the present invention will be described below with reference to the drawings. 1 and 2 are diagrams showing the outline of the operating method of the present embodiment, FIG. 3 is a schematic diagram showing the flow of the sintered product, and FIG. 4 is a schematic explanatory diagram of mounting the temperature sensor.

The automatic operation of the cooler blower of the present invention is improved by performing product tracking and automatically selecting the cooler blower to be operated based on the value of the cooler exhaust tower temperature to perform automatic operation and control of the number of units.

FIG. 3 shows the sintering machine 10 to the primary crusher 12.
The hot-sintered product crushed by is dropped to the cooler 13, and the coolers are arranged in a circle (radius r). While running at low speed on the rails, cool air is sucked from the lower part of the cooler with a cooler blower to remove hot air. It shows that the high temperature sinter is cooled by being diffused into the atmosphere from the exhaust tower 15.

Then, the cooled sintered product is discharged from the cooler outlet 6 which is the end of the cooler in FIG. 4 onto the product transporting conveyor and is discharged to the sintering container or the raw material yard.

In this example, four cooler blowers 1 are arranged at equal intervals, and the NO. 1, N
O. 2, NO. It is arranged as 3. The driving order is N
O. The operation is sequentially started from No. 1 and the operation is stopped with NO. 4 to NO.
It stops in the reverse order of driving like 3 and so on.

FIG. 1 and FIG. 2 are views for explaining the operation outline. In the case of the linked empty load start-up operation of FIG. 1, when the linked independent selection CS is selected as the linked 21, the loaded empty CS is selected as the empty 23, and the operation start Pb20 is pressed, the drum feeder 24 is operated after the sintering machine is operated. The operation command of (DF) is issued, the DF is activated, the ignition furnace is ignited, and the sintering machine is operated. D
Along with F, the cooler blower accessory 27 also operates. If the position of the sintered product is tracked from the speed of the sintering machine, and the position of the tip of the tracking reaches the mine ore and the windbox WB temperature at the rear end is 25 or higher than the set temperature, N
O. 1 Operate by issuing a cooler blower operation command 31.
The tip of product tracking is NO. 2 Arrived at Cooler Blois, NO. 1 When the exhaust tower temperature reaches the set temperature 28, N
O. 2 Operate the cooler blower by issuing the operation command 32.
Thereafter, in the same manner, NO. 3, NO. 4 Start the cooler blower sequentially.

The cooler blower is stopped when the temperature of the exhaust tower becomes equal to or lower than the stop set temperature regardless of the operation of the cooler.

In the case of loading activation shown in FIG. 2, when the interlocking independent selection CS is selected as the interlocking 21, the loading empty CS is selected as the loading 22 and the operation start Pb20 is pressed, the sintered product transportation system is sequentially activated. To do. That is, the downstream transportation equipment is sequentially operated. Since the load is activated, tracking does not matter, and the cooler blower is activated or deactivated in the same manner as above depending on the temperature of the exhaust tower.

[0022]

As described above, according to the present invention, the operation timing and start / stop of the cooler blower can be automatically operated to save labor in the operation work and reduce the operating energy loss.

[Brief description of drawings]

FIG. 1 is a diagram showing an outline of an automatic operation for starting an empty load of a cooler blower and an operation number control of an embodiment of the present invention.

FIG. 2 is a diagram showing an outline of automatic operation for starting a load and control of the number of operating cooler blowers according to an embodiment of the present invention.

FIG. 3 is a schematic view showing a flow of a sintered product which is an embodiment of the present invention.

FIG. 4 is a diagram showing an example of NO. 1 to NO. Four
It is a schematic explanatory view of the arrangement of the cooler blower up to and the attachment of the temperature sensor.

[Explanation of symbols]

 1 Cooler blower 2 Electric motor for driving cooler blower 3 Sintered product (high temperature) 4 Cooler wheel 5 Cooler inlet 6 Cooler outlet 10 Sinterer 12 Primary crusher 13 Cooler 15 Exhaust tower 41 Thermocouple for windbox thermometer 42 NO. 1 Exhaust tower thermometer thermocouple 43 NO. 2 Exhaust tower thermometer for thermometer 44 NO. 3 Exhaust tower thermometer thermocouple

Claims (2)

[Claims] 1. A product is tracked by a sintering machine, the cooler is activated immediately before the product arrives at the cooler, and when the product arrives on the cooler, a NO. 1 Start the cooler blower,
Tracking products are NO. 2 Arriving at Coola Blois, N
O. If the exhaust temperature of the 1-cooler blower exceeds the set temperature, NO. 2. A method of operating a cooler blower, which is characterized in that the cooler blower is started, and then the next cooler blower is started by the logical product of the product tracking value and the exhaust tower temperature. 2. When the product is on the cooler and the cooler is stopped and restarted, NO. 1 When the cooler blower is started and the exhaust tower temperature is equal to or higher than the start temperature set value, NO. 2 Start the cooler blower and set NO. 2 If the exhaust tower temperature is equal to or higher than the starting temperature set value, NO. 3 Start the cooler blower, and similarly, NO. 3 If the exhaust tower temperature is equal to or higher than the starting temperature set value, NO. 4 A method of operating a cooler blower characterized by starting the cooler blower.