WO2009030180A1 - Machine de refroidissement circulaire - Google Patents

Machine de refroidissement circulaire Download PDF

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Publication number
WO2009030180A1
WO2009030180A1 PCT/CN2008/072254 CN2008072254W WO2009030180A1 WO 2009030180 A1 WO2009030180 A1 WO 2009030180A1 CN 2008072254 W CN2008072254 W CN 2008072254W WO 2009030180 A1 WO2009030180 A1 WO 2009030180A1
Authority
WO
WIPO (PCT)
Prior art keywords
plate
sealing
trolley
ring cooler
air duct
Prior art date
Application number
PCT/CN2008/072254
Other languages
English (en)
Chinese (zh)
Inventor
Deliang Gao
Chuande Dai
Original Assignee
Zhongye Changtian International Engineering Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhongye Changtian International Engineering Co., Ltd. filed Critical Zhongye Changtian International Engineering Co., Ltd.
Publication of WO2009030180A1 publication Critical patent/WO2009030180A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/26—Cooling of roasted, sintered, or agglomerated ores
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/16—Sintering; Agglomerating
    • C22B1/22—Sintering; Agglomerating in other sintering apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B21/00—Open or uncovered sintering apparatus; Other heat-treatment apparatus of like construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B21/00—Open or uncovered sintering apparatus; Other heat-treatment apparatus of like construction
    • F27B21/06—Endless-strand sintering machines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D15/00—Handling or treating discharged material; Supports or receiving chambers therefor
    • F27D15/02—Cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D15/00—Handling or treating discharged material; Supports or receiving chambers therefor
    • F27D15/02—Cooling
    • F27D15/0206—Cooling with means to convey the charge
    • F27D15/0213—Cooling with means to convey the charge comprising a cooling grate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/12—Travelling or movable supports or containers for the charge
    • F27D3/123—Furnace cars

Definitions

  • the invention relates to the field of iron and steel smelting, in particular to a ring cooler.
  • a ring cooler In steel smelting, a ring cooler is used to cool the sintered material.
  • the ring cooler is generally circular, and the sintered material is run in a ring cooler for one week to complete cooling.
  • the total air duct of the ring cooler is fixedly connected to the branch air duct, the branch air duct leads to the entrance of the bellows, and the outlet of the bellows is close to the lower floor of the trolley.
  • the ring cooler When the ring cooler is working, the sintered material is laid on the bottom plate of the trolley, and the trolley runs in the ring cooler.
  • the fan blows air into the total air duct, and the total air duct sends the wind into the branch air duct, and then blows through the bellows. Enter the trolley and cool the material on the trolley.
  • a longitudinal sectional view of a conventional ring cooler trolley includes a triangular beam 151, a seesaw 152, and a carriage body 153, and a material is laid on the raft 152.
  • the cold air is blown into the trolley body 153 from below, and then enters the material layer through the seesaw 152, and is completely exchanged with the material, and then discharged from above the material.
  • the trolley needs to rotate in the ring cooler, it is difficult to achieve sealing between the trolley and the bellows, resulting in low utilization rate of cold air, which affects material cooling.
  • the technical problem to be solved by the present invention is to provide a ring cooler which can achieve sealing with a duct to ensure a cooling effect.
  • the invention relates to a ring cooler, which comprises a movable inner sealing plate and an outer sealing plate, and a raft plate is arranged between the inner sealing plate and the outer sealing plate, and the raft plate spaces the trolley into a discharging layer and ventilation.
  • the movable air duct and the air supply branch air duct are provided with an annular liquid tank
  • the annular liquid tank is provided with a cover plate with a radial cross section, and the cover plate faces the annular liquid Extending a side plate in the groove, the annular liquid tank is divided into an inner annular liquid tank and an outer annular liquid tank, wherein the inner annular liquid tank and the outer annular liquid tank are respectively communicated with the outside atmosphere in the air passage, the annular liquid tank
  • the obstruction is a lightweight object floating on the water surface.
  • the obstruction is a plurality of damper plates disposed in the outer annular liquid tank.
  • the damper plate is further disposed on an outer side wall of the side plate.
  • the trolley is provided with a sealing unit, and the sealing unit comprises an inner sealing plate of the ring cooler trolley, an outer sealing plate, and a left supporting beam and a right supporting beam and a bottom plate contacting position respectively of the shaped beam. , a sealing device for preventing leakage of cold air.
  • the inner sealing plate, the outer sealing plate, and the sealing device disposed at a position where the left support of the profiled beam is in contact with the bottom plate is a first sealing device;
  • the first sealing device comprises a beam and a bracket connected at right angles, The outer side of the bracket is fixedly fitted with a sealing member of an elastic material, and the lower end of the sealing member is closely attached to the flat plate, and the height of the sealing member is slightly larger than the distance from the lower end surface of the bracket to the beam.
  • the sealing device disposed at the position where the right support of the profiled beam is in contact with the bottom plate is a second sealing device;
  • the second sealing device comprises a beam and a bracket connected at right angles, and the bracket is in contact with the flat plate.
  • a seal of elastic material is fixedly attached to the outer side of the bracket, and the lower end of the seal is in close contact with the flat plate.
  • the ventilation layer and the movable air duct are connected with a duct sealing plate, and the air duct sealing board is connected to the air supply system, and the air duct sealing board includes a air duct connected to the air blowing system.
  • a tube and a ventilation grille disposed at the duct tube port, the bottom of the air duct tube having a slanting plate that is inclined upward from the duct tube port, and a horizontal plate that is in contact with the swash plate.
  • the angle between the swash plate and the horizontal plane is a first inclination angle
  • the top plate of the air duct tube has a second inclination angle that is horizontally clamped and inclined upward.
  • the ventilation grille comprises at least two vertical grids and at least one crossbar for ensuring the spacing of the vertical grids.
  • the raft is disposed on the support beam
  • the support beam comprises a rectangular beam and a triangular beam on the rectangular beam
  • the upper wing of the rectangular beam extends to the both sides to widen the bottom of the triangular beam.
  • the upper wing of the rectangular beam is provided with ventilation holes extending toward the two sides, and the two triangular beam side plates adjacent to the triangular beam bottom plate are provided with a plurality of through holes.
  • the cross-sectional shape and area of the through hole are determined according to the size of the mineral material cooled by the ring cooler trolley; the cross-sectional area satisfying the through hole is smaller than the triangular beam of the mineral material relative to the through hole side The projected area of the board.
  • the cross-sectional area of the through hole is larger than a projected area of the metallized material relative to the side plate of the triangular beam in which the through hole is located, and the through hole is provided with a purlin of the same material as the triangular beam side plate. .
  • the upper wing of the rectangular beam is provided with at least one ventilation hole extending toward both sides of the widened portion.
  • the present invention has the following advantages:
  • the trolley of the invention has a double-layer structure, the lower layer of the ventilation layer is dedicated to the upward blowing, and the trolley is fixedly connected to the movable air duct, and the movable air duct runs together with the trolley, so that the movable air duct and the trolley are tightly connected. Ensure the tightness of the trolley to prevent air leakage and ensure the cooling effect.
  • the first sealing device and the second sealing device are respectively disposed at the contact positions of the inner sealing plate, the outer sealing plate, the left supporting beam and the right supporting beam of the profiled beam and the flat plate to realize sealing of the ring cooler trolley.
  • the ring cooler trolley support beam of the present invention comprises a rectangular beam and a triangular beam on the rectangular beam.
  • the upper wing of the rectangular beam is widened to extend on both sides to form the triangular beam bottom plate, and the upper wing of the rectangular beam is provided with ventilation holes extending toward the two sides, and the cold air can enter the inside of the triangular beam through the ventilation hole.
  • the two triangular beam side plates adjacent to the triangular beam bottom plate are provided with a plurality of through holes, the cold air entering the triangular beam can enter the B area in FIG. 8 through the through holes, thereby cooling the B.
  • the mineral material in the area improves the cooling effect of the mineral material above the support beam.
  • the invention is arranged at the ventilation grille of the duct pipe port, and the cooling air enters the trolley through the ventilation grille during the cooling operation. Since the bottom of the air duct has a slanting plate that is inclined upward from the air duct tube port, and a horizontal plate that is in contact with the swash plate, when the raft of the trolley falls, the air vent vent through the air duct When the material on the raft is dropped into the vent pipe from the vent of the air duct sealing plate, the material entering the vent pipe can slide down the swash plate into the discharge chute and will not accumulate in the vent pipe. This ensures the normal operation of the ring cooler.
  • Figure 1 is a longitudinal sectional view of a conventional ring cooler trolley
  • Figure 2 is a transverse cross-sectional view of the trolley of the present invention.
  • Figure 3 is a radial cross-sectional view of the water sealing device of the present invention.
  • Figure 4 is a schematic view showing a working state of the water sealing device shown in Figure 3;
  • Figure 5 is a schematic view showing another working state of the water sealing device shown in Figure 3;
  • Figure 6 is a radial cross-sectional view showing another embodiment of the water sealing device of the present invention.
  • Figure 7 is a radial cross-sectional view showing still another embodiment of the water sealing device of the present invention.
  • Figure 8 is a structural view of the support beam of the ring cooler trolley of the present invention.
  • Figure 9 is an enlarged view of a portion I of Figure 8.
  • Figure 10 is a plan view showing another embodiment of the support beam of the ring cooler of the present invention.
  • Figure 11 is a cross-sectional view taken along line A-A of Figure 10;
  • Figure 12 is a cross-sectional view taken along line C-C of Figure 11;
  • Figure 13 is a schematic view showing the sealing of the ring-cooling machine trolley of the present invention.
  • Figure 14 is an enlarged view of the first sealing device of the present invention.
  • Figure 15 is an enlarged view of another embodiment of the first sealing device of the present invention.
  • Figure 16 is an enlarged view of still another embodiment of the first sealing device of the present invention.
  • Figure 17 is an enlarged view of the second sealing device of the present invention.
  • Figure 18 is a structural view of a duct sealing plate for use in a ring cooler according to the present invention.
  • Figure 19 is a cross-sectional view taken along line I-I of Figure 18.
  • the trolley 10 is a two-layer structure of a discharge layer and a ventilation layer, the discharge layer is used for placing the sintered material, the ventilation layer is used for ventilation, and the discharge layer and the ventilation layer are spaced apart.
  • a seesaw 15 having a plurality of vent holes is opened.
  • the sides of the sintering machine cart 10 are respectively a movable inner sealing plate 13 and an outer sealing plate 14, and the side of the inner sealing plate 13 is connected to the movable air passage 18.
  • the cold air enters the ventilation layer from the movable air duct 18, and the material of the discharge layer is blown from the ventilation layer upward through the vent hole of the raft plate 11, and is completely exchanged with the material, and then discharged from above the material.
  • the trolley 10 Since the trolley 10 has a double-layer structure, the lower layer of the ventilation layer is dedicated to the upward blowing, and the trolley 10 is fixedly connected to the movable air duct 18, and the movable air duct 18 is operated with the trolley 10, so that the movable air passage 18 can be operated. Closely connected with the trolley to ensure the tightness of the trolley 10, prevent air leakage, and ensure the cooling effect.
  • the present invention provides a water sealing device at the branch air duct connection of the movable air duct 18 and the ring cooler.
  • the invention provides an obstruction in the annular liquid tank of the water sealing device, and when the water surface in the annular liquid tank vibrates strongly, the obstruction can effectively slow down the vibration amplitude of the water surface, and prevent The water spray that stops the vibration is brought into the trolley by the high-speed airflow in the air passage, or is sprayed outward from the outer annular groove by the airflow in the air passage to ensure the normal operation of the ring cooler.
  • the invention is applicable not only to the ring cooler air duct in the steel smelting field, but also to various other ventilation ducts, for example, the exhaust passage of the blast furnace, the air supply duct of the mine, and the like.
  • the invention provides an obstruction in the annular liquid tank of the water sealing device, and the obstruction can be a light object with a low density, such as a plastic block, a foam block, a wooden block, etc., and the lightweight object floats on the water surface of the annular liquid tank. Above, when the surface of the water vibrates violently, the vibration amplitude of the water surface is effectively slowed down.
  • the present invention can place a lightweight object 20 on the water surface of the outer annular liquid tank 135 to slow the vibration amplitude of the water surface.
  • a lightweight object 20 floats on the surface of the outer annular liquid tank 135 of the water seal device 13, and the width of the lightweight object 20 is greater than 1/2 of the width of the outer annular liquid tank 135.
  • the pressure is transmitted to the water surface of the outer annular liquid tank 135 through the water, and the water is pushed upward to move, and causes The water surface fluctuates, because the outer annular liquid tank 135 floats with the light object 20, and the light object 20 decomposes the oscillating force of part of the water surface, and prevents the excessive water splash caused by the water surface vibration, thereby preventing the water splash.
  • the airflow in the air duct suddenly decreases, and the air pressure in the air duct also decreases sharply.
  • the external atmospheric pressure is applied to the water surface of the outer annular liquid tank 135, and the pressure caused by the water level difference is applied, and the pressure water moves downward (see Figure 5), the lightweight object 20 exerts an average pressure on the water surface to prevent the surface vibration from stimulating too high a flower.
  • the pressure is transmitted through the water to the water surface of the inner annular liquid tank 134, pushing the water to move upward, and causing fluctuations in the water surface.
  • the lightweight object 20 can delay the pressure exerted by the outside atmosphere on the water surface, the water surface of the inner annular liquid tank 134 is prevented from rising too much, so that the water splash caused by the sudden rise of the water surface is not too high, and the splashing water is prevented from entering. Wind tunnel.
  • the present invention places a lightweight object 20 in the outer annular liquid tank 135, and the lightweight object 20 can decompose or delay the pressure applied to the water surface when the airflow in the air passage suddenly increases or suddenly decreases, thereby avoiding the water surface from being excessively high. Water splash, effectively slowing the vibration amplitude of the water surface.
  • the present invention can also place a lightweight object 20 on the water surface of the inner annular liquid tank 135 to slow the vibration amplitude of the water surface.
  • the present invention can also be placed simultaneously in the inner annular liquid tank 134 and the outer annular liquid tank 135. Lightweight object 20.
  • the obstruction of the present invention may be a plurality of damping plates disposed on the outer groove wall 135A of the outer annular liquid tank 135.
  • a plurality of damper plates 21 are disposed on the outer groove wall 135A of the outer annular liquid groove 135.
  • the width of the damper plate 21 is larger than 1/2 of the width of the outer annular liquid groove 135, and the number of the damper plates 21 may be according to the depth of the water. And, generally 2 - 5 is better.
  • the present invention can also be provided with a plurality of damping plates 21 on the outer side surface 133A of the side plate 133.
  • the width of the damping plate 21 is larger than 1/2 of the width of the outer annular groove 135, so that the damping plates 21 are staggered in the outer annular groove 135. side.
  • the present invention can also provide a plurality of damping plates 21 on both sides of the inner annular groove 134.
  • the present invention can also decompose the water surface pressure by changing the shape of the groove wall of the inner annular groove 134 and/or the outer annular groove 135 to control the amplitude of the water surface oscillation.
  • the present invention can also provide an outwardly extending projection on the inner groove wall 134A of the inner annular groove 134.
  • the present invention can also provide a projecting portion on the outer side wall 133A and the inner side wall 133B of the side plate 133.
  • the present invention can place the lightweight object 20 and the damper plate 21 in the water sealing device, and can also place the lightweight object 20 and the convex portion in the water sealing device.
  • the lightweight object 20 can be placed in the water sealing device at the same time, and the damper plate 21 and the protruding portion are provided.
  • the inner annular liquid groove 134 and the outer annular liquid groove 135 are provided with an obstruction to impede the change of the liquid level.
  • the present invention can also movably connect a damper plate at the lower bottom of the side plate 133. Referring to FIG. 7, the lower bottom of the side plate 133 is movably connected to a damper plate 21.
  • the damper plate 21 swings back and forth within a certain range to decompose part of the water thrust. , to slow down the level of liquid level, to prevent the surface from splashing.
  • FIG. 8 is a structural view of a support beam of a ring cooler trolley according to an embodiment of the present invention.
  • FIG. 9 is an enlarged view of a portion I of FIG.
  • the support frame of the ring cooler trolley of the embodiment of the invention is used for supporting the ring cooler trolley.
  • the ring cooler trolley support beam includes a rectangular beam 1 and a triangular beam 3 on the rectangular beam 1.
  • the upper wing of the rectangular beam 1 is extended to both sides to form the triangular beam bottom plate 31, and
  • the upper wing of the rectangular beam 1 is provided with a vent hole 31a extending toward both sides of the widened portion. Both sides of the triangular beam bottom plate 31 are adjacent to the seesaw 3 for ventilation.
  • the two triangular beam side plates 32 adjacent to the triangular beam bottom plate 31 are provided with a plurality of through holes 32a.
  • the through hole 32a may have a circular cross section.
  • the diameter of the through hole 32a needs to be smaller than the minimum outer diameter or the minimum outer size of the mineral material 4.
  • the size of 4 is the particle size of the mineral material.
  • the through hole 32a needs to satisfy the cross-sectional area of the through hole 32a smaller than the projected area of the mineral material 4 with respect to the triangular beam side plate 32 where the through hole 32a is located.
  • the through hole 32a may also have a triangular, elliptical, quadrangular or polygonal shape.
  • the diameter of the inscribed circle in the through hole 32a needs to satisfy the minimum outer diameter or the minimum outer size of the particles smaller than the mineral material 4.
  • the ring-cooling trolley support beam of the present invention comprises a rectangular beam 1 and a triangular beam 3 on the rectangular beam 1.
  • the upper wing of the rectangular beam 1 is widened to extend on both sides to form the triangular beam bottom plate 31, and the upper wing of the rectangular beam is provided with a vent hole 31a extending toward the two sides, and the cold air enters the mine through the raft 3 At the same time, it can also enter the inside of the triangular beam through the vent hole. Since the two triangular beam side plates adjacent to the triangular beam bottom plate are provided with a plurality of through holes, the cold air entering the triangular beam can enter the B area in FIG. 39 through the through holes, and cool the B area. The mineral material thus improves the cooling effect of the mineral material above the support beam.
  • the ring-cooling trolley support beam of the present invention can eliminate the cooling dead zone, that is, the B zone.
  • FIG. 10 is a top view of a second embodiment of a support beam for a ring cooler of the present invention
  • FIG. 11 is a cross-sectional view taken along line A-A of FIG. 10
  • FIG. 12 is a cross-sectional view taken along line C-C of FIG.
  • the ring cooler includes a plurality of ring cooler trolleys 10, and the plurality of ring cooler trolleys 10 are sequentially, equidistantly, and concentrically arranged together, clockwise (clockwise rotation as shown in FIG. 11) or counterclockwise Rotate at a speed.
  • the second embodiment of the ring cooler trolley support beam of the present invention differs from the first embodiment in that the through holes in the triangular beam side plates 32 are rectangular parallel to each other.
  • the triangular beam side plate 32 of the ring-cooling trolley support beam includes three sets of through-hole groups, each set of through-hole groups including a plurality of mutual holes Parallel or approximately parallel rectangular through holes 32b, and each rectangular through hole 32b may be the same size.
  • the rectangular long side of the rectangular through hole 32b may be parallel to the connection between the ring cooler trolley 10 where the support beam is located and the center of the ring cooler, or may have a certain angle with the connection.
  • the long side of each rectangle can be much larger than the short side, and the length of the short side is smaller than the minimum outer diameter or the minimum outer size of the mineral material 4.
  • the upper wing plate of the rectangular beam 1 of the ring-cooling trolley support beam according to the second embodiment of the present invention extends to both sides to widen to form the triangular beam bottom plate 31, and the upper wing plate of the rectangular beam extends to both sides to widen
  • a ventilation hole 31a is provided in part.
  • Part of the cold air sent by the cold air passage 300 enters the mineral material through the seesaw 3, and the other portion enters the inside of the triangular beam 3 through the vent hole 31a.
  • each through hole group further includes a plurality of parallel rectangular through holes 32b, and enters the triangular beam 3 at this time.
  • the cold air can enter the ore material above the support beam through the parallel or nearly parallel rectangular through holes 32b to cool the mineral material, effectively increasing the air permeability area, thereby improving the cooling effect of the mineral material above the support beam.
  • the resistance decreases, and the air volume provided by the fan increases accordingly. As the air volume increases, the mineral material gets better cooling.
  • the triangular beam side plate 32 of the embodiment of the present invention also includes two or more sets of through hole groups, and each of the through hole groups may also include rectangular through holes 32b or other shapes of through holes which are equidistantly or unequally distributed. And the size of each through hole may be the same or different.
  • a plurality of sub-boards may be sequentially mounted to form a triangular beam side plate 32 having a gap or a through hole.
  • the wheel 100a of the trolley moves along a preset circular track (not shown), and when a certain trolley moves to a position where discharge is required, the wheel 100a of the trolley moves downward along the track, the trolley Under the driving of the wheel 100a, the rotating shaft 300 or the hinge fixed on the supporting beam rotates, thereby driving the seesaw 3 on the trolley to move downward to realize unloading. Since the portion of the support beam supporting material is a triangular beam, due to the presence of the two side plates 32 of the triangular beam, the material on the triangular beam can slide down along the right side plate 32. Achieve unloading. When the next adjacent trolley runs to the unloading position, the material on the side panel on the left side of the triangular beam of the previous trolley is discharged as the jaw 3 falls.
  • the third embodiment of the ring cooler trolley support beam of the present invention differs from the first and second embodiments in that the triangular beam side panel 32 includes a plurality of sub-boards which are sequentially fixedly mounted or detachably mounted between Together, and there are gaps or through holes between two adjacent sub-boards to ensure smooth passage of cold air.
  • the support beam of the ring cooler includes a plurality of sub-boards of the same size, and the sub-boards may be steel plates, and the adjacent two steel plates are welded by at least two purlins or steel bars.
  • the stringers or steel bars are mounted equidistantly.
  • the spacing between the stringers or steel bars needs to be less than the outer diameter of the particles of the mineral material 4 to prevent the mineral material 4 from falling between the adjacent two steel plates.
  • the upper wing plate of the rectangular beam 1 of the ring-cooling trolley support beam of the third embodiment of the present invention is provided with a vent hole 31a extending toward the two sides, and a part of the cold air sent by the cold air passage 300 enters the mineral material through the raft plate 3. The other part enters the inside of the triangular beam 3 through the vent hole 31a. Since the two triangular beam side plates 32 adjacent to the triangular beam bottom plate 31 are provided with gaps or through holes, the cold air entering the triangular beam 3 can pass through the gaps or through holes to enter the support beam. Cooling the mineral material in the mineral material effectively increases the air permeability area, thereby improving the cooling effect of the mineral material above the support beam.
  • the gap or the through hole on the triangular beam side plate 32 increases the ventilation area of the triangular beam side plate 32, that is, the cooling area of the entire ring cooler is expanded, the air volume per unit area is reduced, and the average wind speed is reduced.
  • the cold air duct 300 provides the same cold air capacity (ie, the total pressure value does not change)
  • the resistance decreases, and the air volume provided by the fan increases accordingly.
  • the air volume increases, the mineral material will be cooled better.
  • the triangular beam side plate 32 of the ring-cooling trolley support beam of the embodiment of the present invention may also be an integral steel plate, and a rectangular through hole is formed in the steel plate, and then a stringer is welded or installed in the rectangular through hole, thereby It is ensured that the through hole finally formed by the triangular beam side plate 32 can prevent the leakage of the mineral material.
  • the support beam of the invention can determine the structural size of each part of the support beam according to the size of the water seal ring cooler. Firstly, the height of the rectangular beam is determined according to the gauge height of the trolley 200, and then the width of the bottom plate 31 and the width of the rectangular beam are determined. Finally, the triangle is determined according to the complete discharge requirement (mineral angle of repose) The projection height of the side panels of the beam.
  • the ring cooler is sealed by a single ring cooler trolley 10 as a sealing unit.
  • a single ring cooler trolley 10 as a sealing unit.
  • Several trucks establish several sealing units, and a side-mounted unit static sealing system composed of a plurality of sealing units is integrally formed. The cold air does not leak out during the working process of the ring cooler to ensure the cooling effect of the material.
  • each ring cooler trolley 10 For each ring cooler trolley 10, the front and rear sides and the left and right sides are sealed by a sealing device to ensure the tightness of each ring cooler trolley 10.
  • a sealing device for each ring cooler trolley 10, the front and rear sides and the left and right sides are sealed by a sealing device to ensure the tightness of each ring cooler trolley 10.
  • the inner seal plate 13 and the outer seal plate 14 are provided with a first sealing means 40 in contact with the bottom plate 46 of the ring cooler carriage 10.
  • the contact positions of the left support beam 301 and the right support beam 302 of the profiled beam 3 with the flat plate 46 are provided with a first sealing device 40 and a second sealing device 41, respectively.
  • the length of the lower deck 12 of the trolley 10 is slightly larger than the distance between the inner seal plate 13 and the outer seal plate 14, and the width of the lower deck 12 is slightly larger than that of the profiled beam 30.
  • the inner sealing plate 13, the outer sealing plate 14, and the outer side of the left supporting beam 301 of the profiled beam 30 are disposed at the outer side of the lower plate 12, and the first sealing device 40 is disposed, and the right supporting beam 302 of the profiled beam 30 is in contact with the lower plate 12
  • the second sealing device 41 is disposed on the outer side, and the sealing devices on the four sides of the ring cooler trolley 10 are connected and closed to achieve sealing of the four sides of the ring cooler trolley 10.
  • the lower portion of the ring cooler trolley 10 is composed of a bracket 43 and a beam 44 connected at right angles, and an elastic material sealing member 47 is fixedly mounted on the outside of the bracket 43.
  • the upper end surface of the sealing member 47 abuts against the lower end surface of the beam 44, and the lower end surface of the sealing member 47 abuts against the flat plate 46 of the trolley.
  • the sealing member 47 of the elastic material is fixedly mounted on the outer side of the bracket 43, and the lower end surface of the sealing member 47 is in close contact with the flat plate 46 of the trolley.
  • the sealing member 47 is brought into close contact with the flat plate 14, and the bracket 43 is sealed in contact with the flat plate 14 to prevent the cold air from being exposed.
  • the bracket 43 is placed in front of the sealing member 47 to isolate the high temperature material scattered on the platform 12 from the sealing member 31, thereby effectively preventing the high temperature material from cauterizing the sealing member 47. Therefore, the present invention can be sealed by the sealing member 47, and the high temperature material can be prevented from cauterizing the sealing member 47.
  • the central portion of the front end face of the sealing member 47 is recessed inwardly so that the widths of the upper end surface and the lower end surface are larger than the width of the intermediate portion. Compared with the regular rectangular structure, the structure of the central inward W will not affect the sealing effect, and it can also save some materials, and it is convenient to use screws to lock the dense from the intermediate position.
  • the seal 47 is fixed to the bracket 43.
  • a screw hole is formed in the middle of the seal member 47 and the inside of the bracket 43, and the screw passes through the screw hole to lock the sealing member 47 to the bracket 43. Since the middle portion of the sealing member 47 is recessed inward, the width of the intermediate portion is small, which facilitates the opening of the screw hole, and facilitates the mounting and dismounting of the sealing member 47.
  • the seal 47 of the present invention can be over-matched with the bracket 43 and the beam 44.
  • the height of the sealing member 47 is slightly larger than the distance H from the lower end surface of the bracket 43 to the beam 44.
  • the beam 44 presses a part of the weight of the ring cooler trolley 10 against the upper end surface of the sealing member 47, and the pressure is transmitted to the lower end surface.
  • the lower end surface is more closely attached to the flat plate 46 to improve the sealing effect.
  • the seal member 47 is over-matched with the bracket 43 and the beam 44, the contact between the bracket 43 and the flat plate 14 is not sufficiently tight, and a gap may occur, and it is possible for the high-temperature material to cauterize the seal member 47 through the slit.
  • the outer side of the bracket 43 is provided with an ash partition 34 which can move up and down.
  • the ash partition 34 is provided with a guiding groove 36, and the guiding sleeve 36 is connected to the pin 37 of the bracket 43.
  • the pin 37 fixes the ash spacer 34 to the inner side of the bracket 43, and the ash spacer 34 can move up and down within the width of the guide groove 36.
  • the lower portion of the ring cooler trolley 10 is composed of a bracket 43 and a beam 44 connected at right angles, and an elastic material sealing member 47 is fixedly mounted on the outside of the bracket 43.
  • the upper end surface of the sealing member 47 abuts against the lower end surface of the beam 44, and the lower end surface of the sealing member 47 abuts against the flat plate 46 of the trolley.
  • the bracket 43 is in contact with the lower plate 12 and is pressed, and functions as a ash spacer. Therefore, the second sealing device 41 does not need to be provided with a ash spacer.
  • Figure 18 is a structural view of a duct sealing plate for use in a ring cooler according to an embodiment of the present invention
  • Figure 19 is a cross-sectional view taken along line I-I of Figure 18.
  • the air duct sealing plate for the ring cooler according to the embodiment of the present invention is connected to a air supply system (not shown).
  • the duct sealing plate includes a duct tube 5 in communication with the air supply system and a venting grill 6 disposed at a port of the duct tube 5.
  • the bottom of the duct 1 has a sloping plate 51 which is inclined upward from the port of the duct 1 and a horizontal plate 52 which is in contact with the swash plate.
  • the venting grille 6 may include at least two vertical grids 61 and at least one crossbar 62 for ensuring the spacing of the vertical grids 61.
  • the vertical grid 61 may include at least one vertical grid 61 equal to the port of the duct 5, and is fixedly connected by welding or the like. The vertical grid 61 is fixed to the port of the duct 5 .
  • the crossbar 62 can also be mounted to the vertical grid 61 by welding or other mechanical connection.
  • the vertical grid 61 may have a through hole at a position where the cross bar 66 is required to be installed, and the cross bar 66 may sequentially pass through the vertical grid 61 to determine the vertical grid 61 spacing and then fixedly mounted.
  • the shape of the through hole formed in the vertical grid 61 is identical to the cross section of the cross bar 62.
  • the cross section 62 can be triangular, rectangular or polygonal in cross section.
  • the cross section of the through hole formed by the vertical grid 61 also corresponds to a triangle, a rectangle or a polygon, and can ensure good assembly with the crossbar 62.
  • the cross section of the crossbar 62 may be circular, and correspondingly, the cross section of the vertical grid 61 is also circular.
  • the cross section of the crossbar 62 can be rounded, and it is also ensured that no material is accumulated on the crossbar 62.
  • the length of the crossbar 62 can be the same as the length of the air duct 1 port, and the crossbar 62 and the air duct 1 port are fixed and fixed by welding or other mechanical connection to ensure that the crossbar 62 is vertical.
  • the stability and firmness of the straight grid 61 are fixed.
  • the cold air enters the trolley (not shown) from the air supply system through the ventilation grille 6 to cool the material of the trolley.
  • the wheel of the trolley moves along a preset circular track (not shown).
  • the wheel of the trolley follows the track.
  • the trolley rotates along the rotating shaft or hinge fixed on the support beam, which drives the sliding plate (not shown) on the trolley to move downward to realize unloading.
  • the material on the raft may fall from the venting grille 6 of the duct sealing panel into the duct 1 when passing through the venting grille 6.
  • the material entering the air duct 1 can slide down the swash plate 11 into the discharge chute (not shown), and will not accumulate in the air supply system, thereby ensuring the normal operation of the ring cooler.
  • the air duct sealing plate includes a ventilation grille 6 disposed at the port of the air duct tube.
  • a ventilation grille 6 disposed at the port of the air duct tube.
  • cold air can enter the trolley through the ventilation grille 6, thereby ensuring normal operation of the ring cooler.
  • the bottom of the duct 1 has a sloping plate 11 which is inclined upward from the port of the duct 1 and a horizontal plate 16 which is in contact with the swash plate 11, when the raft of the trolley falls,
  • the grille 6 is ventilated, the material on the raft may fall from the ventilating grille 6 of the duct sealing plate into the duct 1 , and the material entering the duct 1 may slide down the swash plate 11 into the chute, and will not It is accumulated in the duct 1 . Effectively ensure the normal operation of the ring cooler.
  • the top plate 13 of the duct pipe 1 may be inclined upward, having an upwardly inclined inclination angle with respect to the horizontal plane, and the inclination angle is a second inclination angle.
  • the second angle of inclination is the structural angle of inclination created to ensure the venting area.
  • the angle between the swash plate 11 and the horizontal plane is a first inclination angle.
  • the first inclination angle needs to be greater than or equal to the angle of repose of the cooling material.
  • the first inclination angle is greater than or equal to the angle of repose of the cooling material, it can be ensured that the material is unloaded smoothly when unloading.
  • the first inclination angle can be taken as 40. Or 40. Above, it is also necessary to satisfy the horizontal projection width of the swash plate 11 by more than three times the pitch of the vertical grid 61. The width of the horizontal plate 16 may be equal to the pitch of the vertical grid 61.
  • a flange interface 14 can be provided on the side where the duct 1 is connected to the air supply system, and the air duct 1 and the air supply system can be fixed by flange mounting. This effectively ensures the reliability and tightness of the connection.
  • the flange interface 14 may be formed by the air duct 1 extending outwardly from the flange, or may be formed by the interface of the duct flange 1 connected to the side of the air supply system.
  • the distance between the vertical grid plates 61 in the embodiment of the present invention may be different, but it is necessary to ensure that the minimum distance between the vertical grid plates is smaller than the outer diameter of the material particles.
  • the distance between the vertical grid plates 61 in the embodiment of the present invention is equal, and the distance between the vertical grid plates 61 is smaller than the outer diameter of the material particles.
  • the distance between the vertical grids 61 can be 50 to 80 cm to ensure that most of the bulk material does not enter the duct 1 .
  • the lowest position of the venting grille 6 needs to be level with or higher than the horizontal panel 16. This can also improve ventilation.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

L'invention concerne une machine de refroidissement circulaire comprenant un chariot (10), une unité d'étanchéité et un dispositif à conduit d'air. Le chariot (10) est composé d'une plaque d'étanchéité interne amovible (13) et d'une plaque d'étanchéité externe (14), une plaque de grille (15) étant installée entre la plaque d'étanchéité interne (13) et la plaque d'étanchéité externe (14). Ledit chariot (10) est divisé en couche de décharge et en couche de ventilation par la plaque de grille (15), un côté de la couche de ventilation étant reliée de manière fixe à un conduit d'air mobile (18). L'unité d'étanchéité est disposée sur le chariot (10) et comprend des dispositifs d'étanchéité qui sont respectivement situés entre la plaque d'étanchéité interne (13) et un fond plat (46), entre la plaque d'étanchéité externe (14) et le fond plat (46), entre la barre de support gauche (301) d'une structure de soutient (3) et le fond plat (46), et entre la barre de support droit (302) de la structure de soutien (3) et le fond plat (46). Le chariot (10) permet d'améliorer la performance d'étanchéité et d'assurer un effet de refroidissement.
PCT/CN2008/072254 2007-09-03 2008-09-03 Machine de refroidissement circulaire WO2009030180A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNB2007100356707A CN100567868C (zh) 2007-09-03 2007-09-03 一种改进的鼓风环式冷却机
CN200710035670.7 2007-09-03

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WO2009030180A1 true WO2009030180A1 (fr) 2009-03-12

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WO2011042101A1 (fr) * 2009-10-08 2011-04-14 Outotec Oyj Refroidisseur de métal fritté avec agencement d'étanchéité en direction d'une chambre en déplacement contenant du métal fritté
CN111664720A (zh) * 2020-07-10 2020-09-15 中冶北方（大连）工程技术有限公司 在线调节烟气的环冷机密封罩装置
CN113739583A (zh) * 2021-09-22 2021-12-03 新兴能源装备股份有限公司 一种环冷机拐臂轮压轨
CN114279230A (zh) * 2021-12-21 2022-04-05 广西柳钢东信科技有限公司 一种基于气压传感器的环冷机料斗料位检测装置

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CN100573005C (zh) * 2007-09-03 2009-12-23 中冶长天国际工程有限责任公司 一种用于环冷机的风道水密封镇波装置
CN100567868C (zh) * 2007-09-03 2009-12-09 中冶长天国际工程有限责任公司 一种改进的鼓风环式冷却机
CN101118119B (zh) * 2007-09-03 2010-05-19 中冶长天国际工程有限责任公司 一种用于环冷机台车单元静密封装置的密封结构
CN101403570B (zh) * 2008-11-21 2010-06-16 中冶长天国际工程有限责任公司 一种环冷机进风系统和环形风道、及环形液槽
CN101738095B (zh) * 2008-11-21 2012-06-27 中冶长天国际工程有限责任公司 一种环冷机进风系统和环形风道、及环形液槽
CN101408383B (zh) * 2008-11-21 2010-09-01 中冶长天国际工程有限责任公司 一种环冷机进风系统和环形风道、及环形液槽
CN101482370B (zh) * 2009-02-10 2011-02-09 中冶长天国际工程有限责任公司 一种用于环冷机台车的支承梁
CN101482366B (zh) * 2009-02-12 2010-12-22 中冶长天国际工程有限责任公司 一种环冷机台车
CN101504254B (zh) * 2009-03-19 2012-02-29 中冶长天国际工程有限责任公司 一种环冷机
CN101929805B (zh) * 2009-06-26 2012-07-04 中冶长天国际工程有限责任公司 一种环冷机回转台车体和回转台车
CN101825397B (zh) * 2010-04-29 2012-05-09 中冶长天国际工程有限责任公司 一种用于环冷机台车支承梁
CN101839650B (zh) * 2010-05-18 2011-12-28 中冶长天国际工程有限责任公司 环冷机及其单元静密封装置
CN101846458B (zh) * 2010-06-13 2011-09-07 中冶长天国际工程有限责任公司 环冷机及其进风管台车入口段
CN102374790B (zh) * 2010-08-23 2013-06-19 中冶长天国际工程有限责任公司 一种环形风道隔离装置
CN103983111B (zh) * 2013-02-07 2018-03-27 山东省冶金设计院股份有限公司 水密封环形烧结机
CN104344727B (zh) * 2013-07-31 2017-04-05 中冶长天国际工程有限责任公司 环冷机及其冷却风转送装置、台车进风管
CN103388988A (zh) * 2013-08-16 2013-11-13 济钢集团有限公司 一种液密封鼓风环冷机
CN109868362B (zh) * 2019-04-11 2024-02-13 中冶长天国际工程有限责任公司 一种环式焙烧机
CN111254246B (zh) * 2020-01-21 2021-05-07 钢铁研究总院 一种转底炉
CN111442650B (zh) * 2020-05-14 2024-06-28 三河长城实业有限公司 一种盘式独立送风环冷机

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CN101118120A (zh) * 2007-09-03 2008-02-06 中冶长天国际工程有限责任公司 一种用于环冷机的风道水密封镇波装置
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011042101A1 (fr) * 2009-10-08 2011-04-14 Outotec Oyj Refroidisseur de métal fritté avec agencement d'étanchéité en direction d'une chambre en déplacement contenant du métal fritté
AU2010305132B2 (en) * 2009-10-08 2014-12-04 Outotec Oyj Sinter cooler with seal arrangement towards travelling sinter-bearing chamber
EA023251B1 (ru) * 2009-10-08 2016-05-31 Ототек Оюй Охладитель агломерата с уплотнением, обращенным к перемещающейся камере, переносящей агломерат
CN111664720A (zh) * 2020-07-10 2020-09-15 中冶北方（大连）工程技术有限公司 在线调节烟气的环冷机密封罩装置
CN111664720B (zh) * 2020-07-10 2024-06-11 中冶北方（大连）工程技术有限公司 在线调节烟气的环冷机密封罩装置
CN113739583A (zh) * 2021-09-22 2021-12-03 新兴能源装备股份有限公司 一种环冷机拐臂轮压轨
CN114279230A (zh) * 2021-12-21 2022-04-05 广西柳钢东信科技有限公司 一种基于气压传感器的环冷机料斗料位检测装置
CN114279230B (zh) * 2021-12-21 2023-05-12 广西柳钢东信科技有限公司 一种基于气压传感器的环冷机料斗料位检测装置

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