KR101422553B1 - Apparatus for removing iron piece from transferredore - Google Patents

Abstract

The present invention relates to transportation of fuel and raw materials by a belt conveyor of a blast furnace transportation facility, which is installed at a certain distance above a conveyor belt on which a raw material and a steel piece are carried, and adsorbs and removes iron pieces mixed and conveyed on the conveyor belt A driving unit disposed in front of the magnetic force generating unit at the upper end of the frame for driving the geared motor to decelerate the driving force of the geared motor at a constant speed and to transmit the driving force to the driving pulley for rotation; A pulley moving part installed to drive a driving pulley and a driven pulley to a driving force of a geared motor and fine adjustment of a rubber belt and a guide roller formed concavely so as to maintain a strong adhesion force between the driven pulley and the driven pulley, Done to prevent the knitting A feed belt portion configured to remove iron pieces having a large attraction force and a iron piece rejection portion configured to discharge iron pieces adsorbed by a rubber belt that is installed at a lower portion of the frame and circulated by a linking operation of the pulley moving portion, According to the present invention, it is possible to perform an unmanned action without burdening a safety accident caused by a stall or an inadequate operation due to a hurry of an operator, incomplete behavior, etc., and in the case of repetitive and continuous occurrence, Driven drive system.

Description

[0001] APPARATUS FOR REMOVING IRON PIECE FROM TRANSFERREDORE [0002]

The present invention relates to the transport of ores by a belt conveyor in a blast furnace transportation facility, and more particularly to a device for removing iron from a blast furnace transportation facility to prevent breakage of a transportation facility and interruption of continuous operation, It is about.

As shown in FIG. 1, the raw material transportation equipment is supplied with various raw materials and fuel required for blast furnace operation in all processes such as coke and sintering, and then stored in the bin 20, And transported by a belt conveyor 50, a feeder or the like to load the blast furnace body into the blast furnace main body.

At this time, the iron pieces are worn out in the pretreatment process of the sintering plant, the coke factory, etc., or in various devices such as the bin, the hopper, the chute, and the screen which are blast furnace transportation equipment.

As shown in Fig. 2, the entangled iron piece is caught by the head chute during conveyance or caused to incline in the longitudinal direction of the belt 110 in a state of protruding from the hopper for discharging.

Such facility accidents are often caused by a large-scale facility accident involving a considerable time and cost for loss of production and restoration due to a waste wind when the length of the loading belt conveyor (50), etc. is long and the operation interruption is directly caused in the blast furnace operation .

2, in order to prevent this, the iron wire detector 100 is installed on the belt 110 at the front end of the important equipment such as the charging belt conveyor 50, Is stopped. In the past, if there is a facility manager or an inspector on the spot when a facility stoppage and an alarm are activated due to the detection of the iron piece 130, the driver of the cab moves to a distance of 500-800 m The belt was lifted up and removed.

At this time, it is difficult to grasp the exact position due to the deviation of the belt 110 due to the weight inertia according to the amount of the ore to be loaded, and it is difficult to detect when the size of the iron piece is difficult to identify or buried under the ore.

As a result, if the action is delayed, it may lead to a wind and a downturn, causing a loss of subtraction or just restarting without removing it.

This situation takes a lot of time to remove and does not eliminate the precise removal, so there is a risk of safety accident such as production loss due to a wind and stenosis or failure during removal work, There is a danger.

In order to solve such a problem, a steel strip removing device of a blast furnace transportation line has been disclosed as a prior art. However, the steel strip removing device detects the steel strip separately, stops the belt when it is detected and removes the electromagnet block. It is necessary to stop the belt which is excellent in operation because it can be removed remotely. It takes a long time depending on the conveying speed of the removing device, and since the size of the electromagnet block device for conveying is small, the size of the electromagnet, the wire rope, The rigidity of the frame device, and the problems due to the continuous use, which are not practically applicable due to various practically insufficient factors.

SUMMARY OF THE INVENTION It is a first object of the present invention to provide a steel strip removing apparatus capable of automatically removing iron pieces without stopping movement or operation of a driver when detecting iron strips.

A second object of the present invention is to provide a steel strip removing device capable of preventing safety accidents during delays in the blast furnace due to facility accidents and delays in measures such as belt damage,

In order to accomplish the above object, a steel strip removing device of a blast furnace transportation equipment for removing iron pieces introduced on a belt conveyor in a blast furnace transportation process according to the present invention comprises a conveyor belt, A magnetic force generating unit disposed in the upper part of the frame and disposed in front of the magnetic force generating unit to decelerate the driving force of the geared motor at a constant speed so as to drive the driving pulley A pulley moving part disposed in front of and behind the magnetic force generating part and adapted to drive the driving pulley and the driven pulley on the driving force of the geared motor, and a pulley mounted between the driving pulley and the driven pulley, A rubber bell formed concave to maintain strong adhesion And a conveyor belt portion configured to remove a piece of steel having a large attraction force and configured to prevent a knitting yarn from being finely adjusted by fine adjustment of a guide roller and a conveyor belt portion provided at a lower portion of the frame, And rejecting the iron pieces constituted to discharge the iron pieces adsorbed by the rubber belts.

In addition, the present invention includes a speed sensor for detecting the rotation of the pulley, and a striker for confirming whether the rubber belt is in a normal operating state or in a bad state of operation when an abnormality occurs due to excessive knitting or damage of the rubber belt And an operation detecting unit for detecting the operation of the apparatus.

In the present invention, the magnetic force generating portion includes an electromagnet configured to generate continuous and strong electromagnetic force by the built-in coil and the cooling oil, and the rubber belt of the conveyance belt portion is provided with a concave-convex portion to prevent knitting, An angle is provided so that the iron piece having a large attraction force can be removed and can be easily replaced.

In addition, the iron piece rejection includes a iron piece guide so that the iron pieces separated from the magnetic force fall down in a sliding form.

According to the present invention, it is possible to completely remove iron pieces without stopping the equipment or moving time during the detection of iron pieces, thereby preventing the occurrence of winds or winds due to the equipment accident, and continuously operating the blast furnace equipment, Loss can be prevented.

In addition, according to the present invention, it is possible to perform an unmanned operation without burdening a safety accident caused by a stall or an inadequate operation due to a hurry of an operator, incomplete behavior, etc., and in the case of repetitive and continuous occurrence, A driving system becomes possible.

In addition, the number of repetition of the stop and restart of the belt repeated by the iron piece detection is reduced, so that the life span of the reducer, the pulley and the transportation equipment constituting the belt conveyor are improved and the aging instability factor due to the charging delay is reduced, Can be improved.

These and other objects and advantages of the present invention will become more readily apparent from the following detailed description taken in conjunction with the accompanying drawings, which illustrate preferred embodiments of the invention.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view for schematically explaining the occurrence of an iron ingress accident in a blast furnace transportation facility,
2 is a view showing a conventional iron piece removing apparatus,
3 is a side view of a belt conveyor iron piece removing device according to the present invention,
Fig. 4 is a front view of the iron piece removing device shown in Fig. 3,
Figure 5 is an exploded perspective view of the device shown in Figure 4;

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the accompanying drawings showing a preferred embodiment.

5, the steel strip removing apparatus 200 according to the present invention is installed in the width direction of the conveyor belt 110 so as to cross the conveying direction of the conveyor belt 110 for conveying the blast furnace raw material, A magnetic force generating unit 210 installed at a predetermined distance from the conveyor belt to generate an electromagnetic force for attracting and removing the iron pieces conveyed on the conveyor belt, A drive unit 220 disposed at front and rear sides of the magnetic force generating unit and driven to drive the drive pulley and the driven pulley by a driving force of the geared motor; 230), and the iron piece provided between the drive pulley and the driven pulley and attracted thereto is recessed A conveyance belt portion 240 configured to remove a piece of iron having a large attraction force and configured to prevent a knitting of the knitted fabric by fine adjustment of a rubber belt and a guide roller formed at the lower portion of the frame, (250) configured to discharge the iron pieces adsorbed by the rubber belt circulated by the operation. Further, a detecting operation unit 260 for detecting the feeding speed of the rubber belt with the iron piece and electrically operating it so that it can be confirmed in the operating room whether there is a normal operation or an abnormal operation due to excessive knitting phenomenon or damage to the rubber belt ).

Each component constituting the iron piece removing apparatus 200 of the present invention will be described below.

5, the magnetic force generating unit 210 includes an oil cooler 213 which is fixedly installed at the upper center of a frame 211 on which a belt for conveying a raw material is installed and circulates cooling oil therein, And an oil cooler 213 for supplying an electromagnet cooling oil to the interior of the electromagnet is mounted via a gasket 214 and fixed to the electromagnet using a bolt-nut 215, The inside of the electromagnet 212 is provided with a coil for magnetic force formation and is integrally formed so that the cooling oil can circulate.

The driving unit 220 constituting the present invention drives the rubber belt to remove the attracted iron pieces. The driving unit 220 includes a geared motor 221 installed at the upper end of the upper frame on which the electromagnet is installed, and a key 222 And a chain 225 that connects the motor side sprocket to the drive pulley side sprocket 226. The motor side sprocket 224 is mounted by using the drive side sprocket 226,

The pulley moving part 240 constituting the present invention includes a cylindrical driving pulley 231 extending in the width direction provided at the rear of the motor 21 provided in front of the upper frame and a bearing unit A guide roller 233 for guiding a rubber belt extending in the width direction and being transported therebetween via a guide plate 237, 236).

The driving pulley 231 and the driven pulley 232 of the pulley moving part 230 are seated by the bearing unit 233 at regular intervals on both sides of the electromagnet 212 mounted on the upper end of the frame 211, The drive pulley 231 is coupled to the pulley side sprocket 226 at one side and is coupled for power transmission to the motor side sprocket 224 and the chain 225. The driven pulley 232 is connected to the both side bearing unit 233, Is coupled to the lower tension device 235 by bolts.

Meanwhile, the pulley drum is formed in a cylindrical shape when the drive pulley 231 and the driven pulley 232 are manufactured, and the lagging method of the drive pulley 231 forms a diamond or gull-shaped groove used for a general drive pulley. The guide roller 236 constituting the pulley moving part 230 is welded to the upper portion of the electromagnet 212 in an oblique manner and is coupled to the groove of the guide plate 237 and fixed by an adjusting screw 238.

The conveyor belt unit 240 includes a rubber belt 241 on which the iron pieces adsorbed from the raw material being conveyed are stacked, and a rubber belt 241 which extends in the width direction and faces the rubber belt 241 at intervals of 1 to 1.5 m in the longitudinal direction And an angle 242 which is fastened and fixed to the rubber belt using a fastening screw 243. The angle 242 is set such that the iron piece 130 having a large size and high adhesion strength among the iron pieces 130 attached on the rubber belt 241 surrounding the electromagnet 212 is pushed to the release position in accordance with the movement of the rubber belt 241 .

The rubber belt 241 is formed by joining the rubber belt 244 so as to face the angle 242 by the fastening screw 244 and the lower portion of the electromagnet 212 and the driving pulley 231, the driven pulley 232, And the guide roller 236. At this time, all the materials used are made of a stainless steel material independent of magnetic force, and the head of the fastening screw 243 is provided with pulleys 231 and 232, a guide roller 236, In consideration of the friction with the round head or dish head.

The iron piece rejection 250 is welded to the lower part of the frame 211 in such a state that it is positioned at the lower side of the side of the conveying belt for conveying the raw material to be conveyed by the upper side and the lower side is held at the upper part of the collection carriage 252, A fixed iron guide 251, and a bogie 252 for collection.

The detection operation unit 260 is assembled with a fixing screw 262 at one end of the driven pulley 232 to detect whether the operation state is abnormal when an abnormality occurs due to normal operation and excessive knitting phenomenon or damage to the rubber belt 241, A speed sensor 263 for detecting the feeding speed of the rubber belt 241 and a panel 264 electrically connected to the striker and the speed sensor are connected to the striker 261, And its power source is connected to the electromagnet 212, the geared motor 221, and the speed sensor 263, respectively.

Hereinafter, the operation of the steel strip removing device according to the present invention will be described in detail with reference to the accompanying drawings.

3 to 5, the iron piece removing apparatus of the present invention detects a iron piece 130 which is loaded on a conveyor belt 110 and mixed with an ore 120 and conveyed using a powerful electromagnet 212 And the attached iron piece 130 is conveyed to a position where there is no electromagnet by the rotating concave and convex rubber belt 241 so that the iron piece 130 falls on the iron piece guide 251 by its own weight, .

This will be described in more detail as follows.

5, a magnetic force is generated by an internal coil when power is supplied to the electromagnet 212 of the magnetic force generating unit 210, and the iron piece 130 mixed with the ore 120 is attached on the belt 110 And the heat generated in the coils due to the operation for a long time is cooled by internal oil circulation of the oil cooler 213.

The rotational force generated by the geared motor 221 of the drive unit 220 is transmitted to the motor side sprocket 224 through the chain 225 and then transmitted to the drive pulley side sprocket 226 in a decelerated form in accordance with the tooth ratio So that the rotational force is transmitted to the rubber valve 241 so as to generate a sufficient rotational force even if the iron piece 130 is attached.

The driving pulley 231 and the driven pulley 232 of the pulley moving part 230 are formed in a crown-like cylindrical shape so that the rubber belt 241 is configured so as to be rotatable in an automatic care mode A diamond or gull-like groove is formed in the driving pulley 231 to increase the adhesion force with the rubber belt 241 so as to overcome the adhesion force of the electromagnet 212 to be fixed to the electromagnet 130 and to drop it.

On the other hand, the tension device 235 of the pulley moving part 230 functions to adjust the tension to maintain the basic tension when the rubber belt 241 is exchanged and initial stretching, and the guide roller 236 is moved in the groove of the guide plate 237 By tightening the adjusting screw 238, it is possible to adjust the fine knitting phenomenon on the right and left sides and to act to adjust the additional tension generation.

The angle 242 of the belt moving part 240 acts to push the iron piece 130 having a large size and large adhesion force from the iron piece 130 attached on the rubber belt 241 surrounding the electromagnet 212 to the releasing position When the rubber belt 241 is replaced, the angles 242 that are opposed to each other can be easily fixed by the bolts without performing a separate joining process, thereby facilitating the replacement work.

The iron piece guide 251 of the iron piece rejection 250 prevents the falling iron piece 130 from falling into the clearance of the conveyor belt 110 and alleviates the impact upon dropping, .

Next, the striker 261 of the detection operating portion 260 detects the rotation of the driven pulley 232 by the speed sensor 263 and detects the occurrence of an abnormality due to normal operation, excessive knitting phenomenon, or damage of the rubber belt 241 So that it is possible to confirm whether the operation state is bad or not in the cab.

When the conveyor belt 110 is intermittently driven and stopped repeatedly, when the conveyor belt 110 is connected to the conveyor belt 110, the iron remover 200 is operated simultaneously with the driving of the conveyor belt 110, ) To reduce unnecessary power wastage, and the panel 264 is configured to be visible in the field for repair and testing of the device.

As a result, even if the iron piece 130 is detected, the continuous operation as in the present invention in which the conveyor belt 110 which is carrying the ore 120 is not stopped and attached and removed at the same time as the detection is performed, It is possible to achieve a remarkable effect that the iron pieces can be easily removed.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It is easily understood by those skilled in the art that the present invention can be variously modified and modified without departing from the scope of the present invention.

110: Conveyor belt
130: Iron piece
200: Iron removal device
210:
220:
230: pulley moving part
240: conveying belt section
250: Rejection of the number of pieces
260:

Claims (6)

A steel strip removing device for a blast furnace transportation equipment for removing iron pieces introduced on a belt conveyor in a blast furnace transportation process,
A magnetic force generating unit for generating an electromagnetic force for attracting and removing iron pieces that are installed on the conveyor belt and spaced a certain distance from the conveyor belt on which conveyed raw materials and iron pieces are stacked,
A driving unit disposed at an upper end of the frame at the front of the magnetic force generating unit to rotate the geared motor at a constant speed to transmit the driving force to the driving pulley without slipping,
A pulley movable portion disposed at front and rear sides of the magnetic force generating portion and adapted to drive the drive pulley and the driven pulley to the driving force of the geared motor,
A rubber belt which is provided between the driving pulley and the driven pulley and is attracted to the steel belt and which is attracted by the rubber belt, A belt portion,
A frame member provided at a lower portion of the frame and configured to discharge the iron pieces attracted by the rubber belt circulated by the linking operation of the pulley moving member,
A speed sensor for detecting the rotation of the pulley, and an operation detecting unit including a striker for checking whether the operation state of the rubber belt is abnormal or not, when the abnormality occurs due to excessive knitting phenomenon or damage of the rubber belt As a result of which the steel strip removing device of the raw material transportation equipment is used. delete The method according to claim 1,
Wherein the magnetic force generating unit includes an electromagnet configured to generate continuous and strong electromagnetic force by the built-in coil and the cooling oil. The method according to claim 1,
Wherein the rubber belt of the conveyance belt portion is provided with a concave-convex portion for preventing the knitting. 5. The method of claim 4,
Wherein the conveyor belt portion is provided with an angle so as to be able to remove iron pieces having a large attraction force and to be easily replaced. The method according to claim 1,
Wherein the iron piece rejection device comprises a iron piece guide so that the iron pieces separated from the magnetic force fall down in a sliding form.

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