KR101330312B1 - Cleaning apparatus of drum mixer for sintering - Google Patents

Abstract

The present invention relates to a washing apparatus of a drum mixer for a sintering, and to the drum mixer for a sintering for preventing a blockage phenomenon of a nozzle unit by lowering a pollution level of a washing water while having a simple composition. According to the present invention, a washing apparatus of a drum mixer for a sintering for removing attached cokes, which are attached inside a drum mixer for manufacturing a mixing material for a sintering in an iron ore sintering process, comprises: a first tank part for primary storing a washing water which removes the attached cokes; a filter part for filtering the washing water which passes through the first tank part; a second tank part for secondary storing the washing water which passes through the filter part; a pump part for supplying the washing water, which is stored in the second tank part, to an injection pipe; a nozzle part for spraying the washing water, which is supplied to the injection pipe, toward an inside of the drum mixer; a sensor part for detecting an amount of the washing water, which is stored in the second tank part, in real time; and a control part for controlling an amount of a fresh water, which is supplied to the first tank part by receiving a signal about an amount of the washing water, which is stored in the second tank part, from the sensor part. One side of the filter part is connected to an upper part of one side of the first tank part, and the other side of the filter part is connected to an upper part of one side of the second tank part.

Description

CLEANING APPARATUS OF DRUM MIXER FOR SINTERING}

The present invention relates to a washing apparatus for a sintering drum mixer, and more particularly, to a sintering drum mixer which can wash the adhered light adhered to the inner surface of the drum mixer for preparing the raw material for sintering in the iron ore sintering process by washing water. It relates to a washing device.

In general, iron ore is manufactured as agglomerated sintered ore into the blast furnace during the steelmaking process during the steel manufacturing process. In the iron ore sintering process for producing iron ore as a sintered ore, iron ore, subsidiary materials (limestone, silica, quicklime) and raw materials (coke, semi-ore) are mixed by a drum mixer to produce a blended raw material for sintering. The prepared raw material for sintering is charged to the sintering machine cart supplied with the top light. Then, air is sucked in from the lower part of the sintering machine cart by a suction blower while heating the surface of the sintering compounding material. At this time, as the coke in the sintering compounding material layer is burned, the sintering reaction proceeds to produce a sintered ore.

However, in the process of mixing iron ore, subsidiary materials and raw materials, adhered light with iron ore and subsidiary materials, raw materials, etc. is formed on the inner surface of the drum mixer, so that the mixing of the raw materials is not performed well and the quality of the sintered ore is deteriorated. In order to solve this problem, a cleaning device for a drum mixer for sintering to remove the inner light of the drum mixer has been developed.

Korean Utility Model Model No. 2000-0003449 (2000.2.15.) Has a structure for linearly reciprocating a washing water spray nozzle for spraying washing water on a guide pipe passing through a drum mixer. Then, a discharge means for inducing and discharging the adhering light removed by the washing water to the outside around the discharge port of the drum mixer is provided. The nozzle moving mechanism for linearly reciprocating the washing water spray nozzle includes a plurality of pinch rollers rotatably arranged up and down in a predetermined frame to pressurize the outer surface of the hose connected to the washing water spray nozzle, and the pinch roller is rotated forward and backward. The drive motor to make it is provided. Then, a hose reel is provided, the hose is wound, the hose reel is installed so that the rotational force of the drive motor is transmitted by the sprocket, chain, gear device and the like forward / reverse rotation.

According to the related art configured as described above, when a plurality of pinch rollers are rotated forward / reversely by the driving of the drive motor, the hose moves by the pinch rollers such that the washing water spray nozzle is linearly reciprocated on the guide pipe. The hose is then wound or unwound on the hose reel.

However, since the washing device of the drum mixer for sintering according to the prior art has a structure for washing the inside of the drum mixer while the washing water spray nozzle is linearly reciprocated, its structure is complicated by a mechanical device for linearly reciprocating the washing water spray nozzle. There was a problem that the installation cost is increased, there was a problem that the cleaning time is long.

In addition, since the purification of the wash water using general fresh water is not properly performed, the quality of the wash water is poor, and thus there is a problem in that the washing water spray nozzle is blocked, leading to equipment damage.

On the other hand, Korean Patent No. 10-0954870 (April 19, 2010), "washing apparatus of the sintering drum mixer" is introduced.

This is a device for removing the adhered light attached to the inner surface of the drum mixer for preparing a sintering blending raw material using washing water, which solves the problems of the above-mentioned Korean Utility Model No. 2000-0003449 (2000.2.15.). The present invention relates to a 'washing apparatus for a sintering drum mixer' capable of cleaning the inner surface of the drum mixer at a time by introducing a plurality of injection tubes having a plurality of injection nozzles inside the drum mixer.

However, in the case of such a 'washing apparatus for the sintering drum mixer', various problems exist.

First, the fresh water is taken out and filtered by the water filter unit, and the filtered water is stored in the storage tank. This process is performed while the bottom of the water filter unit is in contact with the water supply pipe, so that foreign substances such as sludge may be mixed. , When water mixed with foreign matter is supplied to the storage tank, water is supplied through the water supply pipe connected to the lower side of the storage tank, and there is a problem in that foreign matter such as sludge that has sunk in the storage tank is supplied as washing water.

Second, there is a problem in that it is not possible to observe the abnormality in real time, as well as no means for replacing the emergency in the emergency, such as when the water filter unit occurs.

Third, there is a problem in that no means for controlling the washing water supply amount, the injection pressure, etc. is provided.

It should be understood that the foregoing description of the background art is merely for the purpose of promoting an understanding of the background of the present invention and is not to be construed as adhering to the prior art already known to those skilled in the art.

The present invention can provide a washing device of the drum mixer for sintering that can be cleaned in a short time to improve the process efficiency, as well as to prevent foreign substances such as sludge is supplied to the washing water as it is, and to control the amount of water supply in real time It is to provide a cleaning device for the drum mixer for sintering.

In addition, the present invention is to provide a cleaning device for the sintered dream mixer for performing the purification of the provided washing water three or more times to prevent equipment damage caused by poor quality of the washing water.

In the washing apparatus of the drum mixer for sintering according to the embodiment of the present invention, in the washing apparatus of the drum mixer for sintering to remove the adhered light attached to the inner surface of the drum mixer for producing a blended raw material for sintering in the iron ore sintering process, the attachment A first tank unit in which washing water for removing light is primarily stored; A filter unit filtering the washing water passing through the first tank unit; A second tank unit in which the washing water passing through the filter unit is stored secondly; A pump unit supplying the washing water stored in the second tank unit to a spray pipe; A nozzle unit for spraying the washing water supplied to the spray pipe to an inner surface of the drum mixer; A sensor unit configured to detect an amount of washing water stored in the second tank unit in real time; And a control unit receiving a signal regarding the amount of washing water stored in the second tank unit from the sensor unit and controlling the amount of fresh water supplied to the first tank unit. Is connected, the other side of the filter portion is characterized in that connected to the upper end of one side of the second tank.

The first tank portion and the second tank portion is characterized in that it comprises a drain valve for discharging the sludge precipitated from the washing water to the outside.

The first tank portion is characterized by having a partition wall that divides the lower portion of the first tank portion in the longitudinal direction.

The filter unit includes a first filter unit and a second filter unit, and the sensor unit detects an abnormality of the first filter unit and the second filter unit in real time, and the controller is configured to detect the first filter unit and the first filter unit from the sensor unit. 2 characterized in that the control unit receives the signal relating to the abnormality of the filter unit in real time to supply the washing water to the filter unit in normal operation.

The injection pipe receiving the washing water from the pump unit is composed of three or more, each nozzle connected to each of the injection pipes do not overlap the mutual injection zone, each of the pump unit and each injection pipe is provided with an electronic valve The control unit may be configured to open and close the respective electronic valves sequentially and to adjust the washing water supply pressure according to the state of the drum mixer.

delete

The injection pipe is characterized in that the air pump is connected.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings.

Prior to this, terms and words used in the present specification and claims should not be construed in a conventional and dictionary sense, and the inventor may appropriately define the concept of a term in order to best describe its invention The present invention should be construed in accordance with the spirit and scope of the present invention.

According to the washing apparatus of the sintering drum mixer of the present invention, since the spraying regions of the nozzle portions do not overlap each other, there is no need to reciprocate the nozzle portions, thereby simplifying the configuration, reducing the equipment cost, and reducing the washing time.

In addition, according to the present invention, through the first storage unit, the filter unit, and the second storage unit through the three purification process for the wash water to reduce the contamination of the wash water, thereby preventing the clogging phenomenon of the nozzle portion.

1 is a schematic diagram of a washing apparatus for a drum mixer for sintering according to an embodiment of the present invention.
FIG. 2 is a schematic cross-sectional view of the first tank of the washing apparatus of the sintering drum mixer shown in FIG. 1.
3 is a schematic cross-sectional view of the filter unit of the washing apparatus of the sintering drum mixer shown in FIG.
4 is a schematic cross-sectional view of the second tank unit of the drum mixer for sintering shown in FIG. 1.
FIG. 5 is a view illustrating a pump unit, an injection tube, a nozzle unit, an air pump, and a drum mixer of the washing apparatus of the sintering drum mixer shown in FIG. 1.

The objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description and examples taken in conjunction with the accompanying drawings. It should be noted that, in the present specification, the reference numerals are added to the constituent elements of the drawings, and the same constituent elements are assigned the same number as much as possible even if they are displayed on different drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

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

1 is a schematic view of a washing apparatus 100 of a drum mixer for sintering according to an embodiment of the present invention. Hereinafter, the washing apparatus 100 of the sintering drum mixer according to the present embodiment will be described with reference to this.

As shown in FIG. 1, the apparatus for cleaning a sintering drum mixer according to the present embodiment is an apparatus for removing adhesion light attached to an inner surface of a drum mixer for preparing a blended raw material for sintering in an iron ore sintering process. The first tank unit 110, which is stored as a car, the filter unit 120 through which the washing water passed through the first tank unit 110 is filtered, and the second tank unit 130 storing the washing water through the filter unit 120 as secondary. , The pump unit 140 for supplying the washing water stored in the second tank unit 130 to the injection tube 150, and the nozzle unit for spraying the washing water supplied to the injection tube 150 to the inner surface of the drum mixer 190 ( 160, a sensor unit S, and a controller 195.

FIG. 2 is a schematic cross-sectional view of the first tank unit 110 of the washing apparatus 100 of the sintering drum mixer shown in FIG. 1. Hereinafter, the first tank unit 110 according to the present embodiment will be described with reference to FIGS. 1 and 2.

The first tank unit 110 is a member that draws freshwater from the freshwater line 111 and stores the primary water. Here, the valve 112 may be included between the first tank 110 and the fresh water line 111, the valve 112 may be implemented as a manual valve or an electromagnetic valve. When the valve 112 is implemented as an electromagnetic valve, the sensor unit S is installed in the first tank unit 110, and using the controller 195, according to the height of the washing water in the first tank unit 110. Electronic valve will be able to be controlled.

Meanwhile, a drain valve 113 may be provided in the first tank 110 as shown in FIG. 2. Therefore, the sludge in the wash water stored primarily in the first tank 110 may be precipitated in the lower portion and discharged to the drain valve 113. That is, the washing water in the first tank 110 may be primarily purified or filtered.

In addition, the first tank 110 may include a partition wall 114 for dividing the lower portion of the first tank 110 in the longitudinal direction. Therefore, the washing water supplied to the first tank unit 110 through the supply pipe 115 may be discharged through the discharge pipe 116 beyond the partition 114, and the first tank part divided by the partition wall 114 ( The drain valve 113 may be installed at both sides of the lower portion of the 110 to improve the purification effect.

On the other hand, the supply pipe 115 of the first tank unit 110 may be sufficiently spaced from the lower portion of the first tank unit 110 to prevent the sludge precipitated in the lower portion of the first tank unit 110 does not flow back. .

3 is a schematic cross-sectional view of the filter unit 120 of the washing apparatus 100 of the sintering drum mixer shown in FIG. Hereinafter, the filter unit 120 according to the present embodiment will be described with reference to FIGS. 1 and 3.

The filter part 120 may include a first filter part 121 and a second filter part 122 as a member for purifying or filtering the washing water passing through the first tank part 110. Here, the wash water passing through the first tank unit 110 may pass through any one of the first filter unit 121 and the second filter unit 122. Specifically, washing water using general fresh water has a high degree of pollution and contains a lot of sludge. At this time, the washing water may be somewhat purified through the first tank 110, but still contains a lot of sludge, and thus a lot of sludge is filtered out of the filter unit 120 while the washing water passes through the filter unit 120. The blockage of the unit 120 may occur.

Therefore, in the present embodiment, for example, the washing water having passed through the first tank unit 110 passes through the first filter unit 121, and when the first filter unit 121 is blocked or damaged, the second filter unit ( By passing through 122, it is possible to prevent the washing apparatus 100 of the sintering drum mixer from being shut down.

On the other hand, the first filter unit 121 and the second filter unit 122 is provided with a sensor unit (S), respectively, the sensor unit (S) detects the abnormality of the first and second filter units (121, 122) The controller 195 transmits the information to the controller 195 in real time.

In addition, a valve may be installed between each filter unit 120 and the first tank unit 110 to control the washing water passing through each filter unit 120.

4 is a schematic cross-sectional view of the second tank 130 of the sintering drum mixer cleaning apparatus 100 shown in FIG. Hereinafter, the second tank unit 130 according to the present embodiment will be described with reference to FIGS. 1 and 4.

The second tank unit 130 is a member in which the washing water passing through the filter unit 120 is stored second. Here, the drain valve 131 may be provided in the second tank 130 as in the first tank 110. Therefore, when the wash water is stored in the second tank 130, sludge is precipitated at the lower portion and the sludge may be discharged to the outside through the drain valve 131. As a result, the second tank unit 130 may be purged of the washing water, the washing water used in the washing apparatus 100 of the sintering drum mixer according to the present embodiment is the first tank unit 110, the filter unit ( 120, at least three purification processes may be performed through the second tank 130. Therefore, the contamination of the washing water may be lowered, and thus, the phenomenon of clogging of the nozzle unit 160 described later may be reduced.

On the other hand, the second tank unit 130 is provided with a sensor unit (S). In this case, when the height of the washing water in the second tank 130 measured by the sensor unit S is greater than or equal to a predetermined level, the electromagnetic valve 133 installed between the second tank 130 and the filter unit 120 is 'closed' and the washing water is closed. When no longer supplied, and the washing water height is less than a predetermined level, the electronic valve 133 is 'opened' so that the washing water may be supplied.

FIG. 5 illustrates a pump unit 140, an injection pipe 150, a nozzle unit 160, an air pump 180, and a drum mixer 190 of the washing apparatus 100 of the sintering drum mixer shown in FIG. 1. The figure shown. Hereinafter, the pump unit 140, the injection tube 150, and the nozzle unit 160 according to the present embodiment will be described with reference to FIGS. 1 and 5.

The pump unit 140 is a member for supplying the washing water stored in the second tank unit 130 to the injection pipe 150, as shown in Figure 1, the nozzle unit 160 is connected to the injection pipe 150 and the drum It is a member for spraying the washing water on the inner surface of the mixer 190.

Here, the pump unit 140 may apply pressure to the washing water to make the washing water high pressure, and transmit the washing water of the high pressure to the injection pipe 150. Accordingly, the high pressure washing water may pass through the injection pipe 150. On the other hand, the injection pipe 150 may be implemented in three or more, for example, may include a first injection pipe 151, a second injection pipe 152, and a third injection pipe 153.

In addition, the nozzle unit 160 may be connected to the injection pipe 150 to receive the high pressure washing water, and thus attach the high pressure washing water to the inner surface of the drum mixer 190 by spraying the high pressure washing water on the inner surface of the drum mixer 190. The adhered light can be removed. On the other hand, the nozzle unit 160 may be connected to each injection pipe 150, for example, the first nozzle unit 161 connected to the first injection pipe 151, the second injection pipe 152 is connected The second nozzle unit 162 may include a third nozzle unit 163 connected to the third injection pipe 153. At this time, each nozzle unit 160 may not overlap each other, the first nozzle unit 161 is installed closest to the inlet of the injection pipe 150, the third nozzle unit 163 is installed farthest Can be. As described above, since the spraying areas of the nozzle units 160 are different, there is no need to reciprocate the nozzle unit 160. Accordingly, the configuration of the apparatus can be simplified and the cleaning time can be reduced as compared with the conventional method. In addition, the spraying direction of the nozzle unit 160 may be inclined with respect to the inner surface of the drum mixer 190 to maximize nozzle spraying power and increase adhesion light removal efficiency.

On the other hand, when the pump unit 140 supplies the washing water to all of the first injection pipe 151, the second injection pipe 152, and the third injection pipe 153 at the same time, the pressure of the washing water may be relatively lower. . Accordingly, the pressure of the washing water sprayed from the nozzle unit 160 connected to each injection pipe 150 may also drop, and the efficiency of removing the attachment light may be reduced.

However, in the washing apparatus 100 of the sintering machine drum mixer 190 according to the present embodiment, an electron valve 170 is installed between the pump unit 140 and each injection pipe 150, and each electron valve 170 is opened. By sequentially controlling the closing / closing, it is possible to prevent such a decrease in the adhesion light removal efficiency. Specifically, first the first electromagnetic valve 171 is opened so that the high-pressure washing water may be injected through the first nozzle unit 161 via the first injection pipe 151, and thus the first of the drum mixer 190 Region 191 may be cleaned. In this case, the second injection pipe 152 and the third injection pipe 153 are in a state in which the second electron valve 172 and the third electron valve 173 are closed, so that the first injection pipe 151 has relatively high pressure washing water. Can pass. Next, the first electron valve 171 is closed and the second electron valve 172 is opened to allow the high-pressure washing water to pass through the second injection pipe 152, thereby allowing the second region of the drum mixer 190 to be opened. 192 may be washed. Next, the second electron valve 172 is closed and the third electron valve 173 is opened to pass the high pressure washing water through the third injection pipe 153 to clean the third region 193 of the drum mixer 190. Can be. As described above, each of the electron valves 170 is sequentially opened / closed at a predetermined time, so that the high pressure washing water passes through only one injection tube 150, thereby improving the adhesion light removal efficiency.

On the other hand, the drum mixer 190 may be installed on the top of the frame, the anti-stick plate and through the anti-stick plate it is possible to prevent the occurrence of light in the upper portion of the frame.

The air pump 180 may be further installed in the washing apparatus 100 of the sintering drum mixer according to the present embodiment.

Here, the air pump 180 may be connected to the injection pipe 150, and when the washing water does not flow inside the injection pipe 150, that is, when the washing operation on the inner surface of the drum mixer 190 is not made An air purge operation can be performed by delivering high pressure air to the pipe 150. Therefore, the nozzle unit 160 may be prevented from being clogged by the high-pressure air discharged and contaminated washing water. In this case, an electronic valve may be installed between each injection pipe 150 and the air pump 180 to implement sequential control for each injection pipe 150, thereby supplying relatively high pressure air.

On the other hand, in the washing apparatus 100 of the sintering drum mixer of the present invention, the control unit 195 receives a signal relating to the internal state of the drum mixer 190 from the sensor unit (S) installed inside the drum mixer 190, By controlling the above-described pump unit 140 and the air pump 180 according to the state, it is possible not only to control the washing water injection pressure and the amount of washing water supply, but also the electromagnetic valve 170 and the air installed in the pump unit 140. The washing water injection pressure and the washing water supply amount may be adjusted by adjusting the opening and closing degree of the electronic valve connected to the pump 180.

Although the present invention has been described in detail through specific examples, this is for explaining the present invention in detail, and the washing apparatus of the drum mixer for sintering according to the present invention is not limited thereto, and the technical field of the present invention may be applied to the present invention. It will be apparent that modifications and improvements are possible by those skilled in the art.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

110: first tank 113, 131: drain valve
114: partition wall 120: filter portion
130: second tank portion 140: pump portion
150: injection pipe 160: nozzle portion
133, 170: electromagnetic valve 180: air pump
190: drum mixer 195: control unit
S: sensor

Claims (7)

In the washing apparatus of the sintering drum mixer to remove the adhered light attached to the inner surface of the drum mixer for producing the sintering compounding raw material in the iron ore sintering process,
A first tank unit in which washing water for removing the attachment light is primarily stored;
A filter unit filtering the washing water passing through the first tank unit;
A second tank unit in which the washing water passing through the filter unit is stored secondly;
A pump unit supplying the washing water stored in the second tank unit to a spray pipe;
A nozzle unit for spraying the washing water supplied to the spray pipe to an inner surface of the drum mixer;
A sensor unit configured to detect an amount of washing water stored in the second tank unit in real time; And
And a control unit receiving a signal regarding the amount of washing water stored in the second tank unit from the sensor unit and controlling the amount of fresh water supplied to the first tank unit.
One side of the filter unit is connected to one upper end of the first tank portion, the other side of the filter unit washing apparatus of the drum mixer for sintering, characterized in that connected to the upper end of one side of the second tank.
The method according to claim 1,
The first tank unit and the second tank unit washing apparatus of the drum mixer for sintering characterized in that it comprises a drain valve for discharging the sludge precipitated from the washing water to the outside.
The method according to claim 1,
The first tank unit comprises a partition wall for partitioning the lower portion of the first tank portion in the longitudinal direction, the washing apparatus of the sintering drum mixer.
The method according to claim 1,
The filter unit includes a first filter unit and a second filter unit,
The sensor unit detects the abnormality of the first filter unit and the second filter unit in real time,
The control unit receives a signal relating to the abnormality of the first filter unit and the second filter unit from the sensor unit in real time, and controls to supply the washing water to the filter unit that is operating normally, the washing apparatus of the drum mixer for sintering .
The method according to claim 1,
The injection pipe receiving the washing water from the pump unit is composed of three or more, each nozzle connected to the respective injection pipes do not overlap the mutual injection zone,
Electronic valves are respectively installed between the pump unit and the respective injection pipes,
The control unit is characterized in that the opening and closing of each electronic valve in accordance with the state of the drum mixer, as well as to adjust the washing water supply pressure, washing apparatus for a sintering drum mixer.
delete The method according to claim 1,
The spray pipe washing apparatus, characterized in that the air pipe is connected to the injection pipe.

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