KR20010000498U - Automatic measuring apparatus of sintering machine for non sinter - Google Patents

Abstract

The present invention relates to an automatic measuring device for micro-glow light of a sintering machine which enables to automatically measure the fine-light (light) content of the sintered light using dust generated when the sintered light is distributed from the sintering cart. In that,

That is, the sintered light is distributed to the light distribution unit using a trolley, but the dust generated when the light lumped sintered light is crushed in the crusher is introduced into the duct through the hood by the suction force of air, and the dust introduced into the duct passes through the pipeline. During the process, the amount of dust is detected by the detector of the dust meter, and the signal detected by the dust meter is output as a voltage signal, amplified by the amplifier, converted into a current signal by the V / I converter, and then converted into data by the A / D converter. In response to the input to the control device, the control device receiving the current signal compares the received current signal with the set data and informs the driver of the quality and abnormality of the sintered ore as the micro-light data obtained according to the result. It features.

Description

AUTOMATIC MEASURING MEASUREMENT OF Sintering Machine {AUTOMATIC MEASURING APPARATUS OF SINTERING MACHINE FOR NON SINTER}

The present invention is to automatically measure the micro-light (light) content of the sintered ore by using an automatic measuring device of the micro-lighting of the sintering machine, more specifically, the dust generated when the sintered light is distributed from the sintering cart. The present invention relates to an apparatus for automatically measuring microluminescence of a sintering machine.

In general, as shown in Figs. 1 and 2, the sintering equipment is a raw material for mixing the main and secondary raw materials (iron ore, limestone, silica sand, serpentine and quicklime, etc.) cut out from the raw material storage bin 1 and fuel coke. The sintering process and the sintering process for producing the sintered ore by igniting the surface of the compounding material charged into the sintering machine in the ignition furnace (2) at about 1200 ° C. by the suction fan (3), It is divided into cooling, crushing and sorting process, and the sintered ore produced by the above process is supplied as a main raw material of the blast furnace plant.

In the blast furnace plant, using sintered ore is easier to reduce in the blast furnace than using natural ore (raw ore), thereby increasing the output of the blast furnace, lowering the coke ratio, and improving the quality of the molten iron and blast furnace This is because sintered ore is much superior to natural ore as a raw material for charging such as stabilization of yellowing.

That is, when the sintering process is described in more detail, once the ignition compounding raw material is moved to the light distribution unit side according to the operation of the sintering machine in which the plurality of trucks 5 are combined, the compounding material is blended by the suction fan 3 during the movement. By burning from the upper layer to the lower layer of the raw material, the lumped light 4 is changed to the lumped light 4, and the lumped light 4 is separated from the light distribution portion by one cart 5 by the inversion of the sintering machine.

As described above, when the sintered ore 4 is forcibly separated by one bogie 5 and dropped at a constant height for the purpose of primary crushing, the sintering reaction may fail due to excessive or lack of moisture, compounding ratio, and poor plasticity. Dust was generated due to the dry light (natural ore) that remained unreduced, and this large amount of dust was collected by the suction force of the exhaust fan through the hood 6 installed on the upper side thereof. Is collected.

However, the dust generated in the light distribution process of the lump sintered ore refers to the generation of fine coarse light, and the manufacturing quality of the sintered ore is reduced according to the amount of fine coarse light, as well as lowering the error rate of the sintered ore. In monitoring the operation state through a closed-circuit TV, there was a problem in that the viewing was poor and the operation sense was lowered.

The present invention has been made in view of the problems caused by the conventional micro-light generation as described above, the purpose of which is to measure the microcrystalline state of the sintering machine with the amount of dust generated during the light distribution process of the sintered light To provide.

The present invention for achieving the above object is to distribute the sintered light to the light distribution unit using a trolley, but the dust generated when the light lump sintered light is crushed in the crusher to be introduced into the duct through the hood by the suction force of air, The incoming dust detects the amount of dust by the detector of the dust meter in the course of the passage, and the signal detected by the dust meter is output as a voltage signal and amplified by the amplifier and converted into a current signal by the V / I converter. After converting the data from the A / D converter into the control device, the control device receiving the current signal compares the received current signal with the set data and monitors the quality and abnormality of the sintered ore as micro-light data obtained according to the result. Characterized in that it informs the driver through.

1 is a block diagram showing the overall process according to the general sintered ore manufacture,

Figure 2 is a perspective view showing a sintered light distribution state produced by a conventional sintering apparatus,

Figure 3 is a perspective view illustrating an installation state of the microlight measurement apparatus of the present invention.

Figure 4 is a block diagram showing a control unit of the micro light condensation measuring apparatus of the present invention.

<Description of reference numerals for the main parts of the drawings>

6: hood 10: duct

11: Support 20: Dust Meter

21: sensing unit 30: air line

31: air spray nozzle 40: amplifier

50: V / I converter 60: A / D converter

70: control unit 71: monitor

Hereinafter, with reference to the accompanying drawings, a micro-light automatic measuring device of the sintering machine of the present invention is as follows.

Figure 3 is a partial cutaway perspective view showing the installation state of the micro-light condensation measuring device of the present invention, Figure 4 is a block diagram showing the control unit of the measuring device, the sintered lump sintered light is discharged from the cart 5 through the sintering process A hood 6 for sucking and collecting dust and a duct 10 for collecting collected dust are provided above the falling light distribution part.

Supports 11 on which dust measuring devices 20 are seated are formed at predetermined positions on both side walls of the duct 10, and the sensing unit 21 of the dust measuring devices 20 passes through the walls of the ducts and is located therein. It is installed.

At this time, the sensing unit 21 is preferably located in the middle portion with respect to the passage of the duct 10.

At least one air spray nozzle 31 is installed at one side adjacent to both sensing units 21 to prevent dust from adhering to the sensing unit, and the air spray nozzle 31 is configured to supply high pressure air. Air line 30 is connected.

The dust measuring device 20 is connected to an amplifier 40 that amplifies the measured electrical signal, which is connected to a V / I converter 50 that converts the amplified voltage signal into a current signal.

The controller 70 receives the current signal from the V / I converter 50 and compares it with the data according to the dust measurement through the A / D converter 60, and provides the result to the monitor 71 to the driver. Is connected.

Therefore, the dust measuring apparatus of the present invention as described above, the hood 6 by the suction force of the air to the dust generated when the sintered light distribution to the light distribution unit using the trolley (5), and the crushed light crushed crushed light in the crusher. The dust is introduced into the duct 10, and the dust introduced into the duct 10 detects the amount of dust by the detector 21 of the dust measuring device 20 in the course of passing through the duct.

The signal sensed by the dust measuring device 20 is output as a voltage signal and amplified by the amplifier 40, and then converted into a current signal in the V / I converter 50 and then converted into data in the A / D converter 60 for control. Input to device 70

Therefore, the control device 70 receiving the current signal compares the received current signal with the set data and informs the driver of the quality and abnormality of the sintered ore as the micro-light data obtained according to the result through the monitor 71.

Table 1 below shows the control values showing the amount of fine coal emissions compared to the dust measurements.

division TEST1 TEST2 TEST3 TEST4 Management value Remarks Dust measuring box (mg / h) 〉 40 55 60 65 〈 55 Microkine emissions (%) 2 12 17 21 12

In addition, the dust data and the measured sintered ore quality (falling strength and fraction) measured when the fine grains are discharged are shown in Table 2 below.

Comparison of sintered ore quality to dust measurement value Dust measuring box (mg / h) 40 45 50 55 60 65 Falling Strength (%) 92.3 92.5 93.1 92.5 91.5 91.3 Fraction (%) 27.5 27.8 28.5 28.4 30.8 31.5

The automatic microscopic light measurement apparatus of the sintering machine of the present invention has the effect of improving the productivity of the sintered ore by preventing the quality defect of the sintered ore in advance by measuring the microscopic light included in the lumped ore quickly and accurately and automatically. In addition, there is an advantage that can stabilize the furnace sulfur of the blast furnace by measuring the content of the micro-light.

Claims (1)

In a sintering machine having a hood (6) for sucking dust generated when sintering completed sintered lump sintered and discharged to the light distribution unit and a duct (10) for collecting the sucked dust, A dust measuring device (20) installed in the support (11) formed at predetermined positions on both side walls of the duct (10) and having a sensing unit (21) for detecting the amount of dust passing through the wall of the duct and passing therein; One or more air spray nozzles 31 installed on one side adjacent to the sensing unit 21 to prevent dust from adhering to the sensing unit and connected to the air spray nozzles 31 to supply high pressure air. An air line 30, an amplifier 40 connected to the dust measuring device 20 to amplify the measured electrical signal, and a V / I connected to the amplifier 40 to convert the amplified voltage signal into a current signal. Converter 50, Receiving a current signal from the V / I converter 50, and compared with the data according to the dust measurement through the A / D converter 60, the control device 70 to provide the result to the monitor 71 to the driver Automatic micro-lighting measuring device of the sintering machine comprising a configuration.