KR100605692B1 - Device for regulate blocked and grain size control in sinter screen - Google Patents

Abstract

The present invention relates to an apparatus for controlling the amount of sintered ore and the blockage of pastoral blockage which can automatically adjust the amount of sintered ore generated in the basis weight of the sintered ore and prevent the screen from clogging. To maintain the same angle of the cylinder (11) (12) and the upper and lower dampers (13) (13-1) to be adjusted to adjust the interval of the damper (13) (13-1) of the lower control mat. Opening degree of the sintered ore weight detectors 15 and 21 and the damper 30 for detecting the weight of the sintered ore under the simultaneous adjustment bars 25 and 26, the lump ore and the spectral conveyance belt conveyor 8 and 9, respectively. A heavy load bearing 18 installed on both sides of the damper shaft 27 which is rolled up for adjustment, and a central controller 23 installed on one side of the damper so as to control the weight detection devices 15 and 21; The hydraulic device 2 which is provided with the solenoid valve and the solenoid valve is installed to be in communication with the central control unit 23. It is assumed that 4) is installed.

Upper and Lower Damper Control Bar, Damper Shaft, Damper, Limit Switch, Connecting Rod

Description

DEVICE FOR REGULATE BLOCKED AND GRAIN SIZE CONTROL IN SINTER SCREEN}

1 is a perspective view schematically illustrating the installation of a general sintered ore screen (SINTER SCREEN).

2 is an enlarged structural diagram of a matrix of the present invention;

Figure 3 is a schematic perspective view of the amount adjustment and blockage preventing device of the sintered ore screen according to the present invention.

Figure 4 is a schematic configuration diagram of a screen mat damper adjusting device installed in the amount control and clogging prevention device of the sintered ore screen of the present invention.

Explanation of symbols on the main parts of the drawings

1 ... sintered gate (GATE) 2 ... top matt screen

3 ... bottom matte screen 4 ... screen driven motor

8 ... spectral transfer belt conveyor 9 ... spectral transfer belt conveyor

11 ... top mat damper adjustment cylinder 12 ... bottom mad damper adjustment cylinder

13 ... top adjustable damper 13-1 ... bottom adjustable damper

15 ... Sintered light weight inspection device

16.SINTER LOAD CELL HOPPER

17,17-1 ... Top and bottom shake buffer bars

18 ... High load bearing 20 ... Screen adjustable hydraulics

21 ... spectral weight detection unit 23 ... raw screen center control

24 ... cylinder hydraulic regulator

25, 26 ... upper and lower damper adjustment bar 27 ... damper shaft

28 ... limit switch 29 ... touch bar

30 ... damper 31 ... connection

32: push pin

The present invention automatically adjusts the amount of sintered ore generated in the sintered ore (hereinafter referred to as "sintered ore") as a raw material in the blast furnace, and controls the amount of sintered ore screens to prevent clogging The present invention relates to a blockage preventing device, which prevents the blockage of the sintered ore screen due to the small particle size of the sintered ore and the subsequent screening of the sintered ore. The present invention relates to a device for adjusting the amount of sintered ore and preventing clogging to automatically adjust the ratio to further improve the efficiency of the screen.

The commonly known furnace operation involves charging sintered or coke in a blast furnace and blowing hot hot air supplied from a hot stove into the blast furnace, whereby the sintered and coke undergo a reduction melting reaction to dissolve. The melt is discharged and produced through the outlet.

In order to charge the sintered ore and coke in the furnace during the reduction melting process of the sintered ore as described above, as shown in FIG. 1, the fuel (coke) and the raw material (sintered ore) transported in the previous process are blast furnaces. After temporarily storing in the raw material storage tank 14, the ore basis weight hopper 16 is subjected to the basis weight as necessary for the blast furnace, and the sintered ore that is sorted and transferred after firing in the sintering machine during the basis weight process The sintered ore screens 2 and 3 are operated by the driving of the motor 4 so as to be temporarily stored in the ore reservoir 14 and then charged into the blast furnace to perform a basis weight operation.

In the basis weight operation through the sintered ore screens 2 and 3 as described above, the lump ore 10 having a large particle size and the relatively small particle size of the sintered ore are respectively separated, and the ore is injected into the ore basis weight hopper 14. The basis weight and the small particle size of the ore are separated into the spectroscopic chute (7) and transported to the spectroscopic reservoir for reuse. The small ore particles are not filtered out during the separation of the ore and the ore. 10) together with the ore basis weight hopper (16) after being weighed in the blast furnace is generated, when the amount of spectral stones in the blast furnace increases, the air permeability of the blast furnace is lowered, the reduction reaction in the blast furnace is worse, The thermal efficiency is lowered and affects the blast furnace operation much.

On the other hand, conventionally, when screening the sintered ore as described above has the following problems.

Firstly, the ore of the spectroscopy blocks the upper and lower pastoral eyes of the screen so that the spectroscopy and the ore of the proper particle size required for the operation of the blast furnace are not separated. Second, when the screen is operated by the motor, Since the amount of generation of the lump ore 10 and the spectroscopy cannot be calculated uniformly, it is difficult to manage the weight of the screen by adjusting the gate 1 according to the operator's experience, and thirdly, to solve such problems. In order to clean the ore stuck to the screen pastoral unit to prevent clogging, it is impossible to enter a narrow space, and the above cleaning work is performed by manual work by a large number of people in the state of removing the upper screen mat. Of course, when the load is increased, fourthly, when the discharge gate 1 of the ore reservoir 14 is manually closed and the screen motor 4 is driven to charge the screen, Clean only effect of shaking the whole are not able to moderate the impact on the clogging portion of the top and bottom of the screen, the screen samokbu efficiency is degraded, of course, would rather have had many problems such that it causes damage to the driver of the screen to load imbalances.

The present invention has been made in order to improve the various problems as described above, the purpose is to automatically adjust the appropriate particle size and the amount of sintered ore required in the operation of the blast furnace, and to detect the weight of the spectral stones inside the blast furnace It automatically adjusts the size of the ore flowing into the furnace to ensure ventilation in the furnace, and the damper is fully open and the screen efficiency is improved by the full opening of the screen even during continuous operation of the blast furnace without the need to idle the lump ore screen. Of course, the present invention provides a device for adjusting the amount of sintered ore and preventing clogging that can be automatically performed by the full opening of the damper.

The present invention as a technical means for achieving the above object, the upper and lower mat adjustment damper is installed to adjust the spacing of the sintered ore screen, the cylinder which is addressed to adjust the spacing of the damper of the upper and lower adjustment mat, and Simultaneous adjustment bar to maintain the same angle of upper and lower dampers, sintered ore weight detection device for detecting the weight of sintered ore at the bottom of the lump ore and spectroscopic conveying belt conveyor, and both sides of the damper shaft which is rolled up to control the opening degree of the damper. Sintered ore, characterized in that it comprises a high load bearing is installed to support, the central control unit is installed to one side of the damper to control the weight detection device, and the hydraulic device which is communicated with the central control unit is installed solenoid valve and solenoid valve By adjusting the amount of screen and preventing clogging.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is an enlarged structural diagram of a matrix of the present invention, Figure 3 is a schematic perspective view of the amount control and blockage preventing device of the sintered ore screen according to the present invention and Figure 4 is a screen installed in the amount control and blockage preventing device of the sintered ore screen of the present invention As a schematic configuration diagram of the mat damper adjusting device, an upper mat adjusting damper 13 for adjusting the screen spacing and a lower mat adjusting damper 13-1 for adjusting the lower mat spacing are installed on the screen, and the upper mat adjusting damper is installed on the screen. A cylinder 11 for adjusting the damper spacing of (13) and a cylinder 12 for cutting the gap between the lower mad adjustment damper 13-1 are respectively installed and connected to the cylinders 11 and 12 to adjust the upper mat. Control bars 25 and 26 are spoken so that the dampers 13 maintain the same angle, and a vibration buffer bar connecting the control bars 25 and the upper and lower mat damper cylinders 11 and 12 ( 17) is connected and installed.

In addition, the small-beam weight detection device 15 for detecting the weight of the sintered ore under the lump transport belt conveyor 8 and the spectroscopic weight detection device 21 for detecting the weight of the spectral in the lower part of the spectral transport belt conveyor 9. ) Is installed in each, the damper 30 consisting of the rectangular iron plate is rolled up damper shaft 27 which is a round bar, respectively, and the heavy load bearing 18 is installed on both sides of the damper shaft 27 to support it. At one end of the damper shaft 27 and the damper 30, the damper adjusting bars 25 and 26 and the connecting table 31 are installed to fix the damper shaft 27 and the damper 30 at the same time.

Subsequently, a weight control device 15 for detecting the lumped weight of the sintered ore and a central control unit 23 for controlling the spectral weight detection device 21 for detecting the spectral weight are provided at one side of the damper 30, and the damper 30 is provided. The hydraulic device 24 for operating the cylinders 11 and 12 is provided with a solenoid valve and a solenoid valve so that forward, backward, and stop lights are possible, and a limit switch 28 for checking the opening degree of the damper 30 is provided. Is installed on the cylinder opening and closing side, one side of the touch bar 29 to control the limit switch 28 is installed is made of a configuration that can determine the full open (Full Open) state of the cylinder.

Referring to the operation and effect of the present invention made of such a configuration as follows.

2 to 4, when the sintered light screen motor 4 is driven by the control panel of the sintered light screen (2) (3) and the signal of the central control unit 23, first of the cylinder control hydraulic device 24 As the solenoid valve is operated and the solenoid valve is opened by the operation of the solenoid valve, the cylinder adjustment hydraulic device 24 is operated so that the damper interval of the upper screen is opened by 20%, and the initial interval of the lower screen is set and maintained. When the lower screen is opened for a predetermined amount, the screen driving motor 4 is driven soon.

In addition to driving the screen driving motor 4, the weight is detected by the lump weight detection device 15 and the spectroscopic weight detection device 21 to generate 90% of the horn ore and 21% of the spectral stones. Repeated opening and closing of the flow control valve of the hydraulic system 24 adjusts the damper 30 opening degree, and the full value command of the lump ore basis weight hopper 16 after a predetermined time has elapsed by the screen driving time and the timer of the lump ore. After checking by the relay in the central control unit 23, the screen drive motor 4 is stopped by the signal of the central control unit 23.

After the stop of the motor 4, when the central control unit 23 transmits the operation signal of the upper damper control cylinder 11 to remove the ore sandwiched between the dampers 30, the flow control valve is opened while the limit switch When the touch bar 29 comes into contact with 28, the open completion information is generated to receive a signal at the next initial value. And the solenoid valve and the flow control valve is operated by the open signal of the lower damper control cylinder 12 to complete the opening of the damper 30.

Subsequently, when the lower damper adjusting cylinder 12 is confirmed to be opened through the touch bar 29 of the limit switch 28, the lower damper adjusting cylinder 12 is confirmed to be the opening value of the first lower damper cylinder 12 after confirmation by the central control unit 23. A 20% open signal of the damper is transmitted to open the damper through the lower damper cylinder 12. At this time, when the ore 10 is generated by 90% or more, the upper damper adjusting device 13 increases the flow rate toward the closing side to close the damper 30, thereby increasing the amount of generated in the spectroscopic side chute, and also lowering the damper 13-. 1) is to operate on the open side to increase the amount of spectral generation, and the ore is less than 90% to operate in the opposite direction to control the amount of spectral and ore ore (10).

As described above, according to the amount control and blockage preventing device of the sintered ore screen according to the present invention, it is possible to automatically adjust the appropriate particle size and generation amount of the sintered ore required in the operation of the blast furnace, and to detect the weight of the spectroscopy Automatically adjusts the size of the ore to ensure ventilation in the furnace, and the damper is fully open by increasing the screen's efficiency even during continuous operation of the blast furnace without the need to idle the ore screen. It is an excellent effect that can be automatically performed by the full opening of the damper cleaning due to clogging of the top and bottom of the ore.

Claims (3)

Cylinders which are extended to adjust the distance between the upper and lower mat adjusting dampers 13 and 13-1 installed to adjust the spacing of the sintered light screen and the dampers 13 and 13-1 of the upper and lower adjusting mats. 11) 12, simultaneous adjustment bars 25 and 26 that maintain the same angle of the upper and lower dampers 13 and 13-1, and the ore and spectroscopic conveying belt conveyors 8 and 9 Sintered ore weight detection device (15) (21) for detecting the weight of the sintered ore in the lower portion, and a heavy load bearing (18) installed to support it on both sides of the damper shaft (27) which is soaked to adjust the opening degree of the damper (30) And a central control unit 23 installed to one side of the damper to control the weight detection devices 15 and 21, and a hydraulic unit 24 extending from the central control unit 23 to which the solenoid valve and the solenoid valve are installed. Volume control and clogging prevention device of the sintered ore screen, characterized in that configured to include. The apparatus of claim 1, wherein the damper adjustment bar (25) (26) is fixed to the fixing pin (32) via a connecting rod (31). According to claim 1, characterized in that the opening limit check switch 28 and the touch bar 29 is installed in the cylinder (11, 12) to be adjusted to adjust the interval of the damper (13) (13-1). To adjust the amount of sintered ore screen and prevent clogging.

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