KR100433344B1 - Apparatus of separating pure slag granulation in blast furnace - Google Patents

Abstract

The present invention relates to a pure water separation device in the blast furnace manufacturing process, and more particularly, a conical water mixing tank of which the upper part is opened and the lower part is closed; An agitator that is rotatably fixed by a support frame in the lower side of the reinforcing mixing tank, the motor is installed on the other side, a rubber scraper is installed on the upper side of the middle portion, and a blade is placed on the lower side of the middle portion; It is configured to include a magnetic disc attached to the bottom of the re-mixing tank and controlled by a process controller, a magnetic power controller.

In the present invention, a material containing a large amount of iron produced in a conventional manual manufacturing process causes a poor product when used as a cement raw material, and there is a problem of generating an iron separation work process in a subsequent process, but in the manual manufacturing process as described above. By providing the pure water separation device of the sedimentation and removal of iron in the wood by producing a good quality of the material to provide the effect of simplifying the post-process and reducing the defect rate during cement manufacturing.

Description

Pure water separator in blast furnace manufacturing process {APPARATUS OF SEPARATING PURE SLAG GRANULATION IN BLAST FURNACE}

The present invention relates to a pure water separation device in the manufacturing process of the blast furnace, more specifically, the high-temperature molten slag during the blast furnace process by high pressure cooling water spraying the mixed iron in the material in the process of manufacturing the material The present invention relates to a pure water separation device in the process of manufacturing blast furnaces that separates only the floating specific gravity, which is added to the water in the process.

Figure 1a is an exemplary view schematically showing the process of separating the slag slag in the molten iron manufacturing process, generally in the process of manufacturing the slag in the blast furnace factory, the difference in specific gravity of the molten iron and slag when the melt in the blast furnace 10 is discharged (melting line : 7.8, slag: 2.3) and the skimmer 12 of the molten iron bath 11 is separated.

The slag in the blast furnace melt discharged is divided into a slag treatment part 13 used as construction aggregate and a sewage treatment part 14 used as a raw material of cement through the slag tap water 11-2.

1B and 2B are reference diagrams for explaining generation of a tree containing iron in a conventional tree manufacturing process.

In the molten iron manufacturing process, molten slag is produced in a state of 1500 to 1520 ° C. and molten slag is produced as a by-product at 1530 ° C.

The blast furnace slag flows to the water treatment unit 14 in a molten state at 1530 ° C., and the hot slag is pumped to the cooling water spray box through the action of the water spray pump 20-1 as shown in FIGS. 1B and 2B. When the cooling water 24 is sprayed by the installed cooling water spray nozzle 18, the water 21 mixed with the cooling water 24 in the stirring tank 17 is separated from the cooling water 24 by the screw conveyor 15-1. It is conveyed to the next process by the hand conveying belt conveyor 15.

In the process, conventionally, molten iron is mixed in the hot molten slag 23 and present in the form of Fe 2 O 3 in the resin 21 to be mixed to produce a resin 21 in which iron 22 is mixed in a stirring vessel. The particle size is around 100mm and the content is 4 ~ 5%.

Therefore, as the iron content increases, corrosion occurs well, which causes the strength of the cement structure to be weakened.

In particular, the purpose of recovering the magnetic material 71 (iron, iron) contained in the belt-shaped material 21 by applying power to the electromagnet rotating drum 72 having grooves in the width direction on the hand conveying belt conveyor 15. Drive the pulley, but the loading amount of the conveyor belt has a curved shape, and the magnetic material 71 buried deeply is not taken out, and the speed of the belt is high, so the recovery amount of iron is limited.

The present invention was created in view of the above-described problems of the prior art as described above, and is produced by mixing a water-containing material containing a large amount of iron in the blast furnace material manufacturing process and separated by the specific gravity difference of the water and magnetic material And a magnetic disc 100 installed at the bottom of the water mixing tank to collect iron and agitate it to separate only the floating water with a low specific gravity, thereby producing and supplying high quality water in the process of manufacturing the blast furnace. The purpose is to provide a pure water separation device.

The above object of the present invention is a conical shaped water mixing tank with an upper portion open and a lower portion closed; An agitator that is rotatably fixed by a support frame in the lower side of the reinforcing mixing tank, the motor is installed on the other side, a rubber scraper is installed on the upper side of the middle portion, and a blade is placed on the lower side of the middle portion; It is achieved by including a magnetic disc installed at the lowermost side of the water mixing tank and controlled by a process controller and a magnetic power controller.

Figure 1a is an exemplary view schematically showing a general slag separation process,

Figure 1b is an exemplary view showing a remanufacturing equipment according to the prior art,

Figure 2a is a perspective view showing a manufacturing process according to the prior art,

Figure 2b is a perspective view of the operating state of the remanufacturing apparatus according to the prior art,

Figure 3a is a perspective view of the pure water separation device in the manufacturing process of the blast furnace according to the present invention,

Figure 3b is a perspective view of the operating state of the pure water separation apparatus in the manufacturing process of the blast furnace according to the present invention,

Figure 4 is a cross-sectional view of the shaft fixed part of the pure water separation device in the manufacture process of the blast furnace according to the present invention.

* Description of the symbols for the main parts of the drawings *

10: blast furnace 11: melt melt

11-1: Charter Runner 11-2: Slag Tangdo

12: Skimmer 13: Inner processing part

14: Recycling Processing Unit 15: Recycling Belt Conveyor

15-1: Screw Belt Conveyor 16: Silos

17: stirring tank 18: cooling water spray nozzle

19: hot water tank 19-1: cold water tank

19-2: cooling fan 20: cooling pump

20-1: water spray pump 22: iron

21: Resin 23: (melt) slag

24: coolant 25: coolant spray box

31: (Electric) Motor 30: Agitator

32: rotation axis number 31-1: reduction gear part

34: braid 34a: support frame

34b: sliding bearing 41: first trough

45: Rehydration Mix 46: Second Trough

47: third trough 48: water separation tank

49: Recycling guide 51: Transfer motor

55: air pump 56: annular tube

57: blowing tube 58: iron exhaust pump

60: rubber scraper 70: discharge pump

71: magnetic material 72: (rotating) drum

70a: discharge pipe 70b: compatible pipe

75: water supply pipe 100: magnetic disc

200: magnetic power controller 300: process controller

Hereinafter, a preferred embodiment according to the present invention will be described in more detail on the basis of the accompanying drawings.

Figure 3a is a perspective view showing the overall configuration according to the present invention, Figure 3b is a perspective view of the use state according to the present invention, Figure 4 is a cross-sectional view of the water stirrer according to the present invention.

According to Figures 3a to 4, the means for infiltrating and mixing the resin 21 loaded in the manual conveying belt conveyor 15 in the water transfer belt conveyor 15 in the area where the resin 21 falls off The first trough 41 for induction of water is inclined to be installed in the direction of the water mixing tank 45, but the bottom frame is attached to the inner surface to reinforce the material of the first trough 41 due to the strength of the material.

At the bottom of the first trough 41, a cone mixing tank 45 in the form of a cone is installed to mix the resin 21, and a heavy metal body may be collected at the bottom of the mixture mixing tank 45. A magnetic disc 100 having a structure capable of sealing when energizing is installed on the bottom of the water mixing tank 45.

The magnetic disc 100 and the magnetic power controller 200 that can control the power supply and cut off when the iron is collected in the fine ash collected on the top of the disc is installed, the control of the valve, motor, etc. in the final pure wood separation The process controller 300 which can perform is provided.

The ratio of the water and the resin 21 in the water mixing tank 45 is preferably introduced at a ratio of about 6: 4, but the water supplement supply pipe 75 is installed at the side for sufficient water supply so that the ratio is not appropriate. Feed water is added to the water mixing tank 45 by the water replenishment supply pipe (75).

At the bottom of the handmade mixing tank 45, an annular tube 56 is installed at the bottom of the handmade mixing tank 45 so as to spread the resin 21 evenly in the water, and the air blowing tube 57 is spaced at an interval of 120 °. The air blowing tube 57 has an outlet shape of 5 ° to 7 ° upwards, and is uniformly sprayed onto the water falling into the water so that it can be separated from the heavy metal body. The air blowing tube 57 is installed to be bent in the direction in which the rotating shaft 32 of the agitator agitator 30 rotates, whereby the centrifugal force of the water causes the steel to be heavy. Gathered.

In order to mix the resin 21 in the resin mixing tank 45 with water at an appropriate ratio, a drive motor 31 having a low speed reducer is attached to the upper end of the rotation shaft 32 and has a high specific gravity. In order to guide the amount to the second trough 46 attached to the outer periphery of the water mixing tank 45, the lower portion of the rotating shaft 32 is composed of a rubber material at the upper portion along the rotating shaft 32 Is a rubber scraper 60 of the bent shape is installed, the lower end of the rotation shaft 32 is given a fixed rotation angle of the braid 34 is attached around the rotation shaft 32.

The support shaft 34a is installed at the bottom of the water mixing tank 45 as much as the rotational load receives a lot of rotational load in the lower part of the rotational shaft 32, and the rotational shaft 32 rotates in the water so that the seal is easy to slide. It is installed by the bearing 34b.

A discharge pipe 70a and a discharge pump 70 for discharging impurities such as heavy iron, which are precipitated during stirring, are attached to a cone of the bottom of the water mixing tank 45, and the discharge pump 70 When it is impossible to discharge, a compatible pipe 70b for discharging at a vacuum pressure is provided separately and installed to be compatible.

A third trough 47 having a strong hardness of the inner surface is installed at a portion extending vertically downward of the second trough 46 of the water mixing tank 45, and a drop is placed at the lower end of the third trough 47. A wood separation tank 48 is installed, and a screw belt conveyor 15-1 in a 45 ° direction for transferring the pure water therein to the rear end is installed in the water discharge guide 49.

The resin discharge guide 49 is formed in a bent chute so that the rising portion wraps around the outer circumferential surface of the screw belt conveyor 15-1 and can be transported to the rear end at the curved portion.

The present invention made up of such a configuration works as follows.

In the blast furnace material manufacturing equipment, the material 21 loaded on the material conveying belt conveyor 15 in the connection intermediate portion of the material conveying belt conveyor 15 for crushing and conveying the material 21 with water easily. A first trough 41 is installed to drop and a predetermined amount is added to the water mixing tank 45 through the passage of the first trough 41 to maintain the ratio about 6: 4. Adjust the water supply

At this time, the resin 21 contained in the resin mixing tank 45 and the foreign matter contained in the air by the air pump 55 in the axis of rotation of the agitator 30 to seat the metal body in the central bottom of the cone portion Through the blowing tube 57 to increase the centrifugal force.

In this case, the molten iron and the like which are diluted with water in the centrifugal direction are heavy and the magnetic disc 100 installed at the bottom supplies power to the magnetic power controller 200, and the iron in the resin 21 is the magnetic disc 100. It is collected at the top.

When the power is shut off to the magnetic power controller 200 in order to discharge the iron powder collected in the magnetic disc 100 to the outside of the water mixing tank 45, the element becomes a magnetic force and the bottom of the water mixing tank 45. By operating the iron discharge pump 70 is installed to discharge the iron containing impurities accumulated on the upper side of the magnetic disc 100 inside the water mixing tank 45 to the outside.

Impurities such as molten iron collected are supplied to the magnetic disc 100 to operate the discharge pump 70 when the load current of the agitator 30 rotating inside the mixing tank rises preferably 2.5 A or more. Configure the electrical circuit so that the current is automatically cut off.

The floating resin material 21 having a light weight in the resin mixing tank 45 is discharged through the second trough 46 and the third trough 47 through the rubber scraper 60 at the upper part of the rotation shaft 32 to be pure. It is put in the water separation tank 48.

The pure water 21 thus separated is deposited in the water separation tank 48 and water is discharged to the lower portion through the low speed rotation of the installed screw belt conveyor 15-1. Through 49).

As described above in detail, the present invention is a material containing a large amount of iron produced in the conventional remanufacture process causes a bad product when used as a cement raw material and there is a problem that occurs in the iron separation work process in the post-process By providing a pure water separation device in the manufacturing process as described above, by removing the iron powder in the precipitation to produce a good quality of the material to provide the effect of reducing the defect rate during the work simplification and cement manufacturing of the post-process.

Claims (4)

A conical shaped water mixing tank 45 having an upper portion open and a lower portion closed; It is rotatably fixed by the support frame (34a) of the lower side of the re-mixing mixing tank 45, the motor 31 is laid on the other side, the rubber scraper 60 is laid on the middle and the blade (below the middle). An agitator 30 on which 34 is placed; In the bottom manufacturing process of the blast furnace, characterized in that it comprises a magnetic disc 100, which is attached to the lowermost side of the mixture mixing tank 45 and controlled by the process controller 300, the magnetic power controller 200. Pure water separation device. The method according to claim 1, further comprising: a first trough (41) disposed on an upper side of the open side of the water mixing tank (45); A second trough 46 attached to the first outer peripheral edge of the rehydration mixing tank 45; One side of the second trough 46 is placed vertically downward and the other side includes a third trough 47 is installed on the opening of the wood separation tank 48 in the process of manufacturing the blast furnace, characterized in that Pure water separation device. According to claim 1, Water replenishment supply pipe (75) which is placed on the second other side of the water mixing tank (45); A blowing tube 57 disposed in an annular shape so as to penetrate the inside and the outside at the lower side of the water mixing tank 45 and the air pump 55 at one side thereof; Pure water recycling apparatus in the process of manufacturing a blast furnace, characterized in that it comprises a discharge pipe (70a) which is installed by the discharge pump 70 is interposed below the water mixing tank (45). 3. The resin separation guide (48) according to claim 2, wherein the resin separation guide (48) includes a resin discharge guide (49) in which a bent chute is formed so as to be transported to a rear end at a curved portion that surrounds the housing outer peripheral surface of the screw belt conveyor (15-1). Pure water separation device in the manufacturing process of the blast furnace, characterized in that.