JP6539349B2 - Raw material charging device, cooling roller and method for preventing adhesion ore - Google Patents

Description

  The present invention relates to a material charging apparatus capable of suppressing the generation of attached ore by the water film generated by cooling the surfaces of a roller and a slope plate which are components of a charging chute.

  Generally, sintered ore is manufactured by charging a sintering raw material into a sintering machine, and as a sintering raw material, iron ore such as magnetite (Fe3O4), hematite (Fe2O3), etc. is mainly used as limestone Secondary materials such as serpentine, borax and quick lime, wheat scale (Mill scale) and dust (other materials), and powdered coke (raw material) are charged into a sintering machine.

  In the process of loading the sintering material into the sintering carriage through a charging chute constituted of a deflector plate or a plurality of rollers, relatively large and heavy particles of the compounding material are At the lower end of the sintering carriage, fine particles are charged at the upper end to induce segregation charging so as to improve air permeability in the sintering process.

  During the process of charging the sintered material, deposit ore is generated on the surface of the charge chute to cause charging imbalance of the blended material, and a separate operation is required to remove such deposit ore. . In the case of a charging chute composed of a plurality of rollers, a scraper fixed to the lower end of the roller is provided to remove adhering deposits through the scraper as the roller rotates.

  If the raw material pumped out from the drum feeder falls down straight to the charging chute, the falling strength is uneven in the horizontal direction, which causes a horizontal charging deviation. Here, if a sloped plate of a fixed length is installed between the drum feeder and the charging chute, while the raw material moves on the sloped plate, the friction force of the sloped plate forms a uniform loading density in the horizontal direction. Since the charging deviation in the horizontal direction can be reduced and the charging chute can be set back by about the length of the inclined plate, if the anticline space is narrow, it is necessary to secure the anticline distance of the material. There is an advantage that can be done.

  However, if deposits occur at the horizontal and right and left end portions of the inclined plate while the compounding material passes through the inclined plate, there is a problem of increasing the horizontal charging deviation. In order to prevent this, the operators manually remove deposits at regular intervals, but the workload increases and dangerous operations are involved.

  Therefore, there is a need for a new method and apparatus that can prevent the occurrence of deposit ore without using a method that has a simpler structure and mechanically blocks the flow of the feed, such as removing the deposit ore. Is the reality.

  The matter described as the background art is for the purpose of enhancing the understanding of the background of the present invention, and acknowledges that it corresponds to the prior art already known to those skilled in the art. It should not be accepted as.

Korean Registered Patent No. 10-1371312

  The present invention relates to a raw material charging apparatus capable of maximally suppressing the generation of attached ore by a water film generated by cooling the surface of a roller and a slope plate which are components of a charging chute. Its purpose is to provide.

  An apparatus for supplying a sintering material to a sintering carriage according to the present invention for achieving the above object is a hopper into which the sintering material is charged; provided at a lower part of the hopper, discharging the sintering material from the hopper while rotating A drum feeder to be driven; a charging chute which comprises a plurality of rollers and receives a supply of a sintering material from the drum feeder and supplies it to a sintering carriage; an inclined plate for transmitting the sintering material discharged from the drum feeder to the charging chute And cooling at least one or more of the roller and the inclined plate that constitute the charging chute to form a water film on the surface.

  The cooling unit may further include a cooling unit that cools the inclined plate to form a water film on the surface of the inclined plate.

  The cooling portion can locally cool the end portions on both sides of the inclined plate.

  The cooling unit is provided inside the heat exchanger and the inclined plate and disposed in a zigzag shape, and provided outside the inclined plate to transfer the refrigerant by connecting one end of the internal piping and the heat exchanger The supply pipe may include a recovery pipe provided outside the inclined plate and connecting the other end of the internal pipe and the heat exchanger to transfer the refrigerant.

  The internal pipe can be inserted into the inside of both ends of the inclined plate and can locally cool the both ends of the inclined plate.

The cooling unit further includes a pump provided on the cooling pipe to circulate the refrigerant, and a control unit for controlling the pump, and the control unit has a heat transfer coefficient per unit area of 635 W / m ² or more when the inclined plate is cooled. The coolant circulation rate of the pump can be controlled to have

  The charging chute includes one or more rollers for guiding the sintered material supplied from the drum feeder to the sintering carriage, and at least one or more of the plurality of rollers is generated by cooling the surface thereof It may be a cooling roller that suppresses the generation of attached ore by the film.

  The cooling roller has a hollow cylindrical outer shape; a pair of rotary shafts each projecting in the longitudinal direction from both ends of the outer shape and having a cylindrical cross section whose diameter is smaller than the diameter of the outer cross section; The outer diameter is smaller than the inner diameter of the outer portion, the length is shorter than the length of the outer portion, and a fixing projection is formed on the surface to be connected to the inner side of the outer portion. An inner core portion may be formed, and a fluid passage may be formed in which the cooling fluid is moved in the separated gap between the outer core portion and the inner core portion.

  The roller, which is a component of the charging chute for guiding the sintering material to the sintering carriage, has a hollow cylindrical outer shape; it protrudes in the longitudinal direction from both ends of the outer shape and has a cylindrical shape with an outer diameter in cross section A pair of rotating shafts smaller than the diameter of the partial cross-section; and the inside of the outer part, the outer diameter is smaller than the inner diameter of the outer part as a cylindrical shape, the length is shorter than the length of the outer part, A fixed protrusion connected to the inner side is formed to include an inner core portion separated from the outer portion by a fixed distance, and a flow path is formed in which a cooling fluid is moved in a separated gap between the outer outer portion and the inner core portion .

  A supply passage is formed in the hollow type one-side rotation shaft portion in communication with the flow passage to supply the cooling fluid to the flow passage side, and the inside of the hollow type other-side rotation shaft portion is in communication with the flow passage A discharge path may be formed where the cooling fluid moved along the flow path is discharged.

  An extension which extends in the direction of the hollow type one side rotation shaft at one end of the inner core and has a cylindrical outer diameter smaller than the inner diameter of the one side rotation shaft and separated from the one side rotation shaft by a predetermined distance; The pipe further includes: a through pipe which simultaneously penetrates the portion and the extension and is in communication with the flow passage on the other side of the middle chamber type rotary shaft; and cooling the separated gap between the one side rotary shaft and the extension A circulation path may be formed in which the fluid is moved.

  The inner core portion and the extension portion may be formed in a hollow mold, and an air layer may be formed between the flow path and the through pipe.

  The method of preventing the generation of deposit ore in supplying the sintering material to the sintering carriage is to locally cool the both-side direction end of the inclined plate which transmits the sintering material discharged from the drum feeder to the charging chute To form a water film on the surface of the inclined plate.

The inclined plate can be cooled with a thermal conductivity per unit area of 635 W / m ² or more.

Water of 92.5 g / hr.m ² or more can be condensed on the surface of the inclined plate.

  According to the cooling roller of the present invention as described above, the generation of attached ore is suppressed by moving the cooling fluid through the flow path formed inside the roller to form a water film by surface cooling. In addition, it is possible to prevent the occurrence of adhesion ore on the inclined plate and reduce the loading deviation of the sintering material.

  Since a worker's manual work and scraper are unnecessary, it is possible to prevent the occurrence of charging deviation due to them.

  Since the water contained in the raw material itself is utilized, no additional water supply device is required, and it can be easily applied to a conventional raw material charging device simply by replacing the roller and the inclined plate.

The drawing which showed the raw material charging device by one Example of this invention. The figure which showed the inclined board and cooling part which transmit raw material from a drum feeder to a charge chute. Drawing which showed a mode that internal piping was inserted in the inclination board. The graph which showed the heat transfer rate by refrigerant flow rate. The graph which showed the moisture condensation amount by the refrigerant flow. FIG. 6 shows a charging chute according to an embodiment of the present invention. FIG. 2 shows a cooling roller according to an embodiment of the present invention. FIG. 2 shows a cooling roller according to an embodiment of the present invention. FIG. 2 shows a cooling roller according to an embodiment of the present invention. The figure which showed the cross section of the cooling roller by the Example of this invention.

  In the following, preferred embodiments of the invention will be discussed with reference to the accompanying drawings.

  As illustrated in FIGS. 1 and 2, the raw material charging apparatus according to the present invention includes a hopper 3000, a drum feeder 2000, a charging chute 6000, an inclined plate 600 and a cooling unit 620.

  The hopper 3000 is a place into which the sintering material is charged, and a fixed amount of the sintering material is ejected by rotation of the drum feeder 2000. At this time, the discharge deviation of the sintering material is reduced by the hopper gate 3000a. The charging chute 6000 is configured to classify the sintering raw material discharged from the hopper 3000 according to the size and insert it into the sintering carriage 1000, and the sintering amount is small enough to rise above the bottom surface of the sintering carriage 1000 It is for charging raw material of particle size.

  The hopper 3000, the drum feeder 2000, and the charging chute 6000 will not be described in more detail as they are generally used.

  The inclined plate 600 is configured to transmit the sintering material discharged from the drum feeder 2000 to the charging chute 6000. The inclined plate 600 has a plate-like structure, and is provided in the direction in which the sintering material is discharged from the drum feeder 2000 and is gradually lowered in the direction toward the charging chute 6000.

  Such an inclined plate 600 is configured to reduce the deviation in the width direction of the sintering material and maintain the feeding density of the sintering material constant, and the distance between the drum feeder 2000 and the charging chute 6000 It plays various roles, such as keeping it far away.

  Although not shown, blind plates are provided at both ends in the width direction of the inclined plate 600 to prevent the material from falling to the left and right of the inclined plate 600. However, due to the influence of the blind plate, the raw materials are accumulated on both ends of the inclined plate 600, which causes a problem that they grow as deposit ore.

  In order to solve this, a cooling unit 620 is provided. The cooling unit 620 cools the inclined plate 600 and condenses water on the surface of the cooling unit 620 to form a water film. The sintering raw material is made of pseudo-particles assembled by using moisture of fine powder iron ore, coke and the like, and the water contained in such sintering raw material is condensed on the surface of the inclined plate 600.

  When water is condensed on the surface of the inclined plate 600 to form a water film, the friction force of the inclined plate 600 is reduced and the raw material slides more easily, so that the accumulation of the raw material can be prevented. This makes it possible to prevent the generation of deposit ore primarily.

The sintered material contains limestone, but Ca contained in such limestone reacts with the impurities in the material to cause cementation to form a deposit ore. At this time, if a water film is formed on the surface of the inclined plate 600, calcium carbonate (CaCO ₃ ) which has been cemented may be converted to calcium hydrogen carbonate (CaHCO ₃ ) ₂ to be dissolved in water. . This can prevent cementation of the deposit, which means that the deposit is easily removed by its own weight. This makes it possible to prevent the generation of deposit ore secondarily.

  As described above, the deposit ore formed on the inclined plate 600 is mainly formed at both side edges of the inclined plate 600. This means that a water film must be formed at the end in the direction of both sides of the inclined plate 600 in order to prevent the generation of deposit ore.

  Therefore, it is preferable that the cooling unit 620 locally cool the end of both sides of the inclined plate 600.

  The cooling unit 620 is provided between the heat exchanger 621, the inner pipe 624 provided inside the inclined plate 600 and arranged in a zigzag shape, and provided outside the inclined plate 600 and between one end of the inner pipe 624 and the heat exchanger 621. , And a recovery pipe 623 provided outside the inclined plate 600 to transfer the refrigerant by connecting the other end of the internal pipe 624 and the heat exchanger 621. Ru. It may further include a pump (not shown) for circulating the refrigerant and a control unit (not shown) for controlling the refrigerant circulation speed of the pump.

  The internal pipe 624 is inserted into the inside of the inclined plate 600 in order to cool the both ends of the inclined plate 600. Both ends of the internal pipe 624 protrude to the side surface of the inclined plate 600, and are arranged in a zigzag shape inside the inclined plate 600, and heat of the inclined plate 600 can be absorbed more effectively.

  It is not necessary to wastefully cool the entire inclined plate 600 since adhesion ore is not generated much at the central portion of the inclined plate 600. Therefore, when the internal pipe 624 is inserted in 1/4 of the area of both sides of the entire area of the inclined plate 600, it is effective to prevent the generation of attached ore.

  If the internal piping 624 is inserted over the entire area of the inclined plate 600, the amount of refrigerant required increases, and the circulation rate of the refrigerant must be high, resulting in waste of resources and energy.

  As illustrated in FIGS. 4 and 5, as the flow velocity of the refrigerant increases, the thermal conductivity and the theoretical amount of condensation of water increase.

Control unit adjusts the flow rate of the refrigerant by adjusting the operating speed of the pump, heat transfer逹率is 635W / m ² or more, the pump to the theoretical amount of condensation is 92.5g / hr. M ² or more It is desirable to control.

  The following experiment was carried out on the condensation of water content by cooling and the adhesion amount of the raw material.

  After inserting the round bar into the inside of an iron block made of the same material as the inclined plate, the refrigerant was passed through the inside of the round bar. The round bar is a pipe having an outer diameter of 20 mm, and after passing a refrigerant of 5 ° C. in the internal passage at 7 L / min, it was confirmed whether or not the deposit on the surface of the iron block was generated.

Planar area of the steel block is 0.108m ^2, heat transfer逹率per unit area at the outside air 40 ° C. criterion was 635W / ^{m 2.} At this time, the surface temperature of the iron block is 5.8 ° C., and the amount of water to be condensed is 92.5 g / hr. It was m ² . Under these conditions, no deposit was produced, and it was confirmed that the aqueous film produced on the surface of the iron block was used to wash away the quicklime, which is the cause of the deposit, and the fine raw material particles by the lubricating action and gravity of the water film.

Therefore, when the heat transfer coefficient per unit area on the surface is 635 W / m ² or more, it can be expected that a water film is formed by condensation of water, and the formation of attached ore is suppressed by the lubricating action.

  The raw material charging apparatus according to the present invention includes a charging chute 6000 including one or more rollers guiding the sintered raw material supplied from the drum feeder 2000 to the sintering carriage, and at least one or more of the plurality of rollers. Is a cooling roller which suppresses the generation of attached ore by a water film generated by cooling the surface.

  One or more of the plurality of rollers constituting the charging chute 6000 for guiding the sintering raw material supplied from the drum feeder 2000 to the sintering carriage side is constituted by a cooling roller having a water film formed on its surface As a result, fine grain raw material and quicklime are dropped between the rollers by the water film without being attached to the rollers. By such a method, by minimizing the time in which the fine grain raw material and quick lime etc. stay on the surface of the roller, the phenomenon of adhesion ore sticking on the surface of the roller is prevented.

  Preferably, among the plurality of rollers, the cooling roller is positioned on the lower end side of the charging chute 6000 to realize a more uniform surface of the sintering raw material layer, which weakens the strength of the upper portion of the sintered ore. Can be prevented.

  The cooling roller has a hollow cylindrical outer shape portion 100; a pair of rotary shaft portions protruding in the longitudinal direction from both ends of the outer shape portion 100 as a cylindrical shape and having a smaller cross section diameter than the outer diameter portion 100 cross section; It is disposed in the inside of the portion 100, and has a cylindrical shape, the outer diameter is smaller than the inner diameter of the outer portion 100, the length is shorter than the length of the outer portion 100, and a fixing projection connected to the inside of the outer portion 100 is formed on the surface. And an inner core 300 separated from the outer shell 100 by a predetermined distance, and a flow passage 1 is formed in the gap between the outer shell 100 and the inner core 300, in which the cooling fluid is moved. A water film is formed on the surface of the outer shape 100 by the cooling fluid moving along the flow path 1.

  The cooling roller according to the present invention, as illustrated in FIG. 6, comprises a hollow cylindrical outer portion 100; both ends of the outer portion 100 as a component of a charging chute 6000 for guiding a sintering material to a sintering carriage. In the longitudinal direction, as a cylindrical shape with a diameter of the cross section smaller than the diameter of the cross section of the outer portion 100; and disposed inside the outer portion 100, the outer diameter of the outer diameter of the outer portion 100 as a cylindrical shape And an inner core portion 300 formed on the surface and having a fixed projection connected to the inner side of the outer portion 100, the inner core portion 300 separated from the outer portion 100 by a predetermined distance, A flow path 1 is formed in which the cooling fluid is moved in the separated gap between 100 and the inner core 300.

  Since the outer portion 100 has to perform the function of the rollers that make up the charging chute 6000, it is desirable that the outer shape be cylindrical.

  The driving unit M is connected to at least one side of the rotary shaft unit 200 extended in the longitudinal direction at both ends of the cylindrical shape to rotate the external unit 100.

  The inner core 300 is disposed in the inner space of the hollow outer part 100, but the inner core 300 is smaller than the inner space of the outer core 100, and the inner core of the outer part 100 and the outer of the inner core 300. A gap may be provided between them.

  However, at the same time as providing a gap separated by a fixed distance in the internal space of the outer part 100, the outer core 100 is provided with a projection for fixing the inner core 300 and rotating integrally with the outer part 100. Connect with the inside of the The projections are preferably formed of two or more so as to be stably arranged in the internal space of the outer portion 100.

  As shown in FIG. 7, the cooling fluid may be moved to the gap between the outer portion 100 and the inner core 300. When the cooling fluid is lower than normal temperature, it condenses the external air so that the water vapor in the air is tied to the surface of the outer portion 100. A water film is formed on the surface of the outer shape part 100 by the water vapor thus condensed being formed on the surface.

  When a water film is formed on the surface of the roller 21 constituting the charging chute 6000 according to the principle as described above, the fine-grained raw material and the quicklime are not attached to the roller 21 and dropped between the rollers by the water film. By minimizing the time in which the fine-grained raw material and quick lime etc. stay on the surface of the roller 21 in such a manner, the phenomenon of adhesion ore sticking on the surface of the roller 21 is prevented.

  Once the deposited ore adheres to the surface of the roller 21, it grows rapidly and as a result a charging imbalance of the sintering raw material occurs, thereby requiring a separate operation for the removal of the deposited ore, which is a mistake in the operation. Will occur.

  In order to prevent the occurrence of the above-mentioned problems, a water film is artificially formed on the surface of the roller 21 to suppress the generation of attached ore.

  In the case of a cooling fluid, preferably a mixture of water and antifreeze is used. In winter, the water freezes and can not move, so antifreeze is mixed to lower the freezing point of the water to prevent such a phenomenon.

  In the case of the outer portion 100, it is preferable that the outer portion 100 be formed of a metal material excellent in thermal conductivity and be configured so that the formation of a water film on the surface becomes smooth under the influence of changes in cooling fluid and air temperature. is there.

  In the cooling roller according to the present invention, a supply channel 2 communicating with the flow channel 1 and supplying the cooling fluid to the flow channel 1 side is formed inside the hollow type one side rotary shaft section 210, and the other side of the hollow type A discharge passage 3 communicating with the flow passage 1 and discharging the cooling fluid moved along the flow passage 1 is formed in the rotary shaft portion 220.

  Similar to the outer portion 100, the two-side rotation shaft portion is also formed in a hollow mold so that a space is provided inside. A supply passage 2 for a cooling fluid communicated with the flow passage 1 is formed in the one-side rotation shaft portion 210, and the cooling fluid is supplied from the outside to move to the flow passage 1 side. Similarly, a discharge path 3 for the cooling fluid, which is also communicated with the flow path 1, is formed, and the cooling fluid that has flowed around the flow path 1 is designed to be discharged to the outside.

  Preferably, a cooling fluid supply path 2 and a discharge path 3 are connected, and a heat exchanger is formed between them to reduce the temperature of the rising cooling fluid to a temperature lower than normal temperature so that the cooling fluid can be constantly circulated. .

  The cooling roller according to the present invention is extended in the direction of the hollow-type one-side rotation shaft 210 at one end of the inner core 300 and has a cylindrical outer diameter smaller than the inner diameter of the one-side rotation shaft 210. Extension portion 400 separated from the portion 210 by a predetermined distance; and a deep portion 300 formed of a hollow type and a penetration portion simultaneously penetrating the extension portion 400 and communicating with the fluid passage 1 on the other side rotary shaft portion 220 of the middle chamber type. Further comprising a pipe 500;

  The extension 400 means a portion extended toward the inner space of the one-side rotary shaft 210 formed hollow at the end of the inner core 300. As in the outer portion 100 and the inner core portion 300, the extension portion 400 is also located inside the one side rotation shaft portion 210, but is formed smaller than the internal space of the one side rotation shaft portion 210. A gap is formed with the inner side and the outer side of the extension 400 spaced apart by a predetermined distance.

  In the inner core 300 and the extension 400, a through pipe 500 which simultaneously penetrates the inner space of the inner core 300 and the extension 400 is disposed, and the through pipe 500 is in communication with the flow passage 1 on the other side.

  Preferably, the cross-sectional area of through pipe 500 and the cross-sectional area of flow passage 1 are the same, or the cross-sectional area of flow passage 1 is formed smaller. When the cross-sectional area of the flow passage 1 is formed smaller, the effect of increasing the velocity of the cooling fluid moving along the flow passage 1 can be expected.

  According to an embodiment of the present invention, as shown in FIG. 8, when the cooling fluid is supplied from the outside through the through pipe 500, the cooling fluid moves along the through pipe 500 and flows into the flow path 1 along the way. be able to.

  Further, in the case of the other side rotation shaft portion 220, it is configured in the form of a middle chamber, and when the cooling fluid flows into the through pipe 500, it moves again to the one side rotation shaft portion 210 along the flow path 1. The flow path 1 on the side of the one side rotation shaft portion 210 is in communication with the discharge path 3 and the cooling fluid is discharged to the outside.

  As another embodiment of the present invention, as can be confirmed in FIG. 9, when the one side rotation shaft portion 210 side is communicated with the cooling fluid supply path 2 and the cooling fluid is supplied, contrary to the above. The cooling fluid moves along the flow path 1 to move to the other side rotary shaft portion 220 side of the middle chamber form, flows into the through pipe 500 communicated with the flow path 1 and is a discharge path communicated with the through pipe 500 It is discharged to the outside through 3.

  Unlike the case where the cooling fluid supply passage 2 and the discharge passage 3 are formed on one side and the other side, when the cooling fluid supply passage 2 and the discharge passage 3 are formed on one side only, spatial restriction It has the advantage of becoming less useful and more useful in confined spaces.

  On the other hand, in the gap between the one side rotation shaft portion 210 and the extension portion 400, a circulation passage 4 for moving the cooling fluid is formed, and the circulation passage 4 has a cooling fluid supply passage on one side. 2 or the discharge passage 3 and the other side is in communication with the flow passage 1 and serves as a passage through which the cooling fluid is moved.

  In the cooling roller according to the present invention, the inner core portion 300 and the extension portion 400 are formed in a hollow shape, and an air layer A is formed between the flow passage 1 and the through pipe 500.

  By forming the inner core portion 300 and the extension portion 400 in a hollow mold and arranging the through pipe 500 penetrating the inside, an empty space is formed so that the space between the flow passage 1 and the through pipe 500 can be confirmed in FIG. To position. The empty space has a large thermal resistance as the air layer A. Therefore, when the cooling fluid is supplied through the through pipe 500, the temperature rise is kept at a slight level by the large thermal resistance air which wraps the through pipe 500 in the process of being moved to the flow path 1 of the other side rotating shaft portion 220. It will be.

  As described above, the cooling fluid completely exchanges heat with only the outer portion 100 by the air layer A having a large thermal resistance value, whereby a water film is smoothly formed on the surface of the outer portion 100.

  On the other hand, in the method for preventing adhesion or formation, the water film is formed on the surface of the inclined plate by locally cooling the end of the inclined plate in the lateral direction which transmits the material discharged from the drum feeder to the charging chute. is there.

At this time, the inclined plate is cooled at a heat transfer coefficient per unit area of 635 W / m ² or more, and 92.5 g / hr. It is desirable to condense water of m ² or more.

  A more detailed description of this replaces the description for the sinter feed charging system described above.

  While the present invention has been illustrated and described with respect to particular embodiments, various modifications and changes may be made without departing from the spirit of the present invention as provided by the following claims. The matter is obvious to those skilled in the art.

1: Flow path
2: Supply channel 3: Discharge channel 4: Circulation channel 100: Outline section 200: Rotary shaft section 300: Inner core section 400: Extension section 500: Through pipe 600: Inclined plate 610: Cooling position (inclined plate side end)
620: Cooling part 621: Heat exchanger 622: Supply piping 623: Recovery piping 624: Internal piping 1000: Sintering truck
2000: Drum feeder 3000: Hopper 3000a: Hopper gate 4000: Upper mine hopper 4000a: Upper mine gate 6000: Charging chute 8000: Alignment plate

Claims (15)

An apparatus for supplying a sintering material to a sintering carriage,
Hopper into which sintered material is charged;
Drum feeder provided at the lower part of the hopper and discharging the sintered material from the hopper while rotating;
A charging chute constituted by a plurality of rollers, supplied with a sintering material from a drum feeder and supplied to a sintering carriage;
An inclined plate for transferring the sintered material discharged from the drum feeder to the charging chute;
A raw material charging device for cooling at least one or more of a roller and an inclined plate constituting a charging chute to condense water on the surface thereof to form a water film.   The raw material charging apparatus according to claim 1, further comprising a cooling unit configured to cool the inclined plate to form a water film on the surface of the inclined plate.   The raw material charging apparatus according to claim 2, wherein the cooling portion locally cools the end portions of both side surfaces of the inclined plate. The cooling unit is
A heat exchanger, an internal pipe provided inside the inclined plate and disposed in a zigzag shape, a supply pipe provided outside the inclined plate, connecting one end of the internal pipe and the heat exchanger to transfer the refrigerant The raw material charging device according to claim 3, further comprising: a recovery pipe provided outside the inclined plate to transfer the refrigerant by connecting the other end of the internal pipe and the heat exchanger.   The raw material charging apparatus according to claim 4, wherein the internal pipe is inserted into the inside of the both-side direction end of the inclined plate to locally cool the both-side direction end of the inclined plate. The cooling unit is
A pump provided on the cooling pipe for circulating the refrigerant, and a control unit for controlling the pump;
The controller controls the refrigerant circulation speed of the pump to have a heat transfer coefficient per unit area of 635 W / m ² or more when the inclined plate is cooled. Raw material charging device according to one of the claims. The charging chute is
One or more rollers for guiding the sintering material supplied from the drum feeder to the sintering carriage,
The raw material charge according to claim 1, characterized in that at least one or more of the plurality of rollers is a cooling roller that suppresses the generation of attached ore by a water film generated by cooling the surface thereof. apparatus. The cooling roller is
A hollow cylindrical outer shape;
A pair of rotary shafts projecting in the longitudinal direction from both ends of the outer shape and having a cylindrical shape and having a cross-sectional diameter smaller than the diameter of the outer shape cross section; and an inner diameter of the outer shape having a cylindrical shape and an outer diameter of the outer shape Smaller, the length being shorter than the length of the outer portion, the surface being formed with a fixing projection connected to the inner side of the outer portion, the inner core portion separated from the outer portion by a predetermined distance;
The material charging apparatus according to claim 7, characterized in that a flow path is formed in which the cooling fluid is moved in the separated gap between the outer portion and the inner core portion. A roller which is a component of a charging chute for guiding a sintering material to a sintering carriage,
A hollow cylindrical outer shape;
A pair of rotary shafts projecting in the longitudinal direction from both ends of the outer shape and having a cylindrical shape and having a cross-sectional diameter smaller than the diameter of the outer shape cross section; and an inner diameter of the outer shape having a cylindrical shape and an outer diameter of the outer shape Smaller, the length being shorter than the length of the outer portion, the surface being formed with a fixing projection connected to the inner side of the outer portion, the inner core portion being separated from the outer portion by a predetermined distance;
A cooling roller having a flow path in which a cooling fluid is moved in a separated gap between an outer portion and an inner core portion , wherein water is condensed by the cooling by the cooling fluid to form a water film on the surface of the cooling roller Form a cooling roller . Inside the hollow type one-side rotary shaft portion, there is formed a supply passage which is in communication with the flow passage and supplies the cooling fluid to the flow passage side,
10. The hollow-type other-side rotary shaft portion according to claim 9, wherein a discharge passage is formed in communication with the flow passage and from which the cooling fluid moved along the flow passage is discharged. Cooling roller. It is extended in the direction of the hollow type one side rotation shaft at one end of the inner core,
Since the outer diameter is smaller than the inner diameter of the one-side rotary shaft as a cylindrical shape, the extension which is separated from the one-side rotary shaft by a fixed distance; and the inner core and the extension simultaneously Further comprising a through pipe in communication with the flow path on the part side;
The cooling roller according to claim 9, characterized in that a circulation path is formed in which the cooling fluid is moved in the separated gap between the one side rotating shaft and the extension.   The cooling roller according to claim 11, wherein the inner core portion and the extension portion are formed in a hollow mold, and an air layer is formed between the flow path and the through pipe. It is a method of preventing the generation of adhesion ore during supply of a sintering material to a sintering carriage,
Localized cooling of the lateral end of the inclined plate that transfers the sintered material discharged from the drum feeder to the charging chute to locally condense the water on the surface of the inclined plate to form a water film Method. The method according to claim 13, wherein the inclined plate is cooled at a thermal conductivity per unit area of 635 W / m ² or more. 92.5 g / hr. On the surface of the inclined plate. The method for preventing adhesion ore formation according to claim 13, wherein water of m ² or more is condensed.

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