WO2004110674A2 - Metal belt continuous cooler - Google Patents

Metal belt continuous cooler Download PDF

Info

Publication number
WO2004110674A2
WO2004110674A2 PCT/EP2004/005969 EP2004005969W WO2004110674A2 WO 2004110674 A2 WO2004110674 A2 WO 2004110674A2 EP 2004005969 W EP2004005969 W EP 2004005969W WO 2004110674 A2 WO2004110674 A2 WO 2004110674A2
Authority
WO
WIPO (PCT)
Prior art keywords
metal
tunnel
belt
castings
cooler according
Prior art date
Application number
PCT/EP2004/005969
Other languages
French (fr)
Other versions
WO2004110674A3 (en
Inventor
Mario Magaldi
Rocco Sorrenti
Original Assignee
Magaldi Ricerche E Brevetti S.R.L.
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 Magaldi Ricerche E Brevetti S.R.L. filed Critical Magaldi Ricerche E Brevetti S.R.L.
Publication of WO2004110674A2 publication Critical patent/WO2004110674A2/en
Publication of WO2004110674A3 publication Critical patent/WO2004110674A3/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G15/00Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
    • B65G15/30Belts or like endless load-carriers
    • B65G15/32Belts or like endless load-carriers made of rubber or plastics
    • B65G15/40Belts or like endless load-carriers made of rubber or plastics troughed or tubular; formed with joints facilitating troughing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D30/00Cooling castings, not restricted to casting processes covered by a single main group
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D15/00Handling or treating discharged material; Supports or receiving chambers therefor
    • F27D15/02Cooling
    • F27D15/0206Cooling with means to convey the charge
    • F27D15/0266Cooling with means to convey the charge on an endless belt
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D21/00Arrangements of monitoring devices; Arrangements of safety devices
    • F27D21/0014Devices for monitoring temperature

Definitions

  • the present invention is about a metal belt continuous cooler for castings or other high temperature molten material.
  • the conveyor comprises a metal conveyor belt moving means and a properly equipped metal tunnel.
  • the castings are supplied to the conveyor, they continue to run on the metal belt in the cooling tunnel without risk of impacts and/or entanglements, and the operators can work on the same conveyor belt with absolute confidence.
  • Figure 1 is a basic schematic view of the whole device, comprising its cleaning system
  • Figure 2 is a schematic view of the device configured with the tunnel at a negative pressure with respect to the environment and with air inlet conduits;
  • Figure 3 is a schematic view of the device configured with the tunnel at a positive pressure with respect to the external environment
  • Figure 4 is an axonometric view of the steel metal belt moving means
  • Figure 5 is a side view of the steel metal belt moving means
  • Figure 6 is a schematic sectional view of the metal conveyor belt without fines recovery system
  • Figure 7 is a schematic sectional view of the metal conveyor belt with cleaning system
  • Figure 8 is a schematic sectional view of the metal conveyor belt with "air blade” seal, with a detail of the seal. It should be noted that same reference numbers in the various Figures indicate the same or equivalent components.
  • the conveyor 1 described in the present invention comprises a metal conveyor belt 2 moving means, properly covered with a metal tunnel 3, activated by powered mechanisms (not shown in the drawings attached to this application).
  • the conveyor belt moving means 2 consists of a belt 8 woven with special steel, to which a series of partially overlapping steel plates 9 is fixed.
  • the peculiar method for fixing the steel plates 9 to the belt 8 provides for a closed, virtually watertight channel.
  • the conveyor belt 2 resists higher temperatures than those tolerated by any other conveyor, because the steel plates 9 are free to expand in each direction.
  • Accidental events, which can cause the breaking of elements of the device 8, 9 do not compromise the reliability of the conveyor belt 2, which continues to run without risk of unexpected stops.
  • Castings 4 are inserted in the conveyor by proper feeding means (not shown in the drawings) and they cover the available surface of the conveyor belt 2 in order to optimize stay times of said castings in the cooling metal tunnel 3.
  • a controlled air flow captured from external environment covers the castings 4 running on the conveyor belt, in order to obtain a thermal decrease by forced convection.
  • the suction air outlet conduit 7 can be placed in the middle of the metal tunnel 3, in order to form a length with an air flow in the same direction of the castings and another length with an opposite air flow (Figure 1).
  • air entrance can also be performed through properly dimensioned conduits 14, designed to introduce air and placed at the opposite ends of the metal tunnel ( Figure 2).
  • This method of cooling air treatment provides for a negative pressure inside the tunnel 3 with respect to the environment, thus preventing air and dust contained in the cooler to exit in uncontrolled way.
  • an "air blade" sealing system 17 is a part of the present invention, consisting of a series of nozzles or openings placed from the outside in the direction of the free section between the conveyor belt side fins and said fins protection plate (Figure 7).
  • the air blade 17 has the purpose to limit the fluid consisting of cooling air which flows in orthogonal direction, avoiding the uncontrolled emission and the consequent external environment pollution.
  • a series of nozzles 5 for atomizing cooling water contributes to obtain the castings desired temperature at the metal tunnel 3 outlet.
  • Disposition, flow rate and number of cooling water atomizing nozzles 5 are defined depending on stay time inside the tunnel 1, material 4 flow rate and cooling fluid speed.
  • Atomizing nozzles 5 intervention can be controlled by a PLC (not shown in the drawings), which manages the signal coming from temperature sensors 6 placed inside the metal tunnel 3.
  • PLC not shown in the drawings
  • baffles (not shown in the drawings) able to generate air flow turbulence and improve the thermal exchange by forced convection.
  • the conveyor 1 can additionally be provided with a cleaning system 16 positioned under the conveyor belt 2 and placed at the return section, to avoid that any fine material adherent to the plates can fall and cause accumulations in the area beneath the tunnel. Utilization of said cleaning system 16 is determined by the presence of any fine material and by said fine material adhesion features to the plates.
  • a castings signaling system (not shown in the drawings), mechanic or with photoelectric cell, to co-ordinate the belt speed with the feeding rate of the castings in order to optimize their arrangement on the belt during the cooling operation.
  • the feed speed of the conveyor belt 2 can be adjusted according to the signal coming from said temperature sensors 6 and to the signal, belonging to the production unit, which identifies the feeding rate of the castings 4 to the conveyor.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Auxiliary Methods And Devices For Loading And Unloading (AREA)
  • Continuous Casting (AREA)

Abstract

A metal belt continuous cooler for castings or other high temperature melted material is disclosed. The conveyor (1) comprises a metal conveyor belt (2) moving means, activated by powered mechanisms, on said conveyor belt (2) moving means being positioned a properly equipped metal tunnel (3), in which the castings (4) run. In said metal tunnel (3), a controlled air flow combined with a series of nozzles (5) for atomizing cooling water allow the cooling of the running material (4), and an air seal (17) system prevents the emission of gases and/or dust contained in the tunnel.

Description

"METAL BELT CONTINUOUS COOLER"
The present invention is about a metal belt continuous cooler for castings or other high temperature molten material. The conveyor comprises a metal conveyor belt moving means and a properly equipped metal tunnel.
In metal castings, cooling systems used nowadays are mostly of the type of vibrating conveyors. In these systems, the vibrations used to move forward high temperature metal castings can cause damages brought about by the impacts these castings undergo either with the conveyor bottom or one to another during transportation. Said vibrations can entangle castings clusters, causing obstructions in the cooling tunnel and consequently production interruption. Moreover, vibrations of said conveyors make difficult any operations to be performed after cooling phase, forcing the employed personnel to wear acoustic protections against the noise caused by said vibrations. All these problems are overcome by the conveyor which is the object of the present invention, having the features contained in the characterizing part of the appended claims.
Once the castings are supplied to the conveyor, they continue to run on the metal belt in the cooling tunnel without risk of impacts and/or entanglements, and the operators can work on the same conveyor belt with absolute confidence.
Characteristics, objects and advantages of the invention will be better highlighted in the following description, with reference to the annexed drawings of embodiments given in not limiting way.
The following figures of drawings are attached hereto: Figure 1 is a basic schematic view of the whole device, comprising its cleaning system;
Figure 2 is a schematic view of the device configured with the tunnel at a negative pressure with respect to the environment and with air inlet conduits;
Figure 3 is a schematic view of the device configured with the tunnel at a positive pressure with respect to the external environment;
Figure 4 is an axonometric view of the steel metal belt moving means;
Figure 5 is a side view of the steel metal belt moving means;
Figure 6 is a schematic sectional view of the metal conveyor belt without fines recovery system; Figure 7 is a schematic sectional view of the metal conveyor belt with cleaning system; and
Figure 8 is a schematic sectional view of the metal conveyor belt with "air blade" seal, with a detail of the seal. It should be noted that same reference numbers in the various Figures indicate the same or equivalent components.
For transporting and cooling metal castings or other high temperature material 4, the conveyor 1 described in the present invention comprises a metal conveyor belt 2 moving means, properly covered with a metal tunnel 3, activated by powered mechanisms (not shown in the drawings attached to this application).
The conveyor belt moving means 2 consists of a belt 8 woven with special steel, to which a series of partially overlapping steel plates 9 is fixed. The peculiar method for fixing the steel plates 9 to the belt 8 provides for a closed, virtually watertight channel. The conveyor belt 2 resists higher temperatures than those tolerated by any other conveyor, because the steel plates 9 are free to expand in each direction. Accidental events, which can cause the breaking of elements of the device 8, 9 do not compromise the reliability of the conveyor belt 2, which continues to run without risk of unexpected stops.
The belt 2, comprising a net 8 and the plates 9, is supported by upper flat rollers 10 and lower support rollers 11 , and the torque is transmitted by friction by a cylindrical traction drum 12, opposed to a snub drum 13, provided with a tension device (not shown in the drawings). Castings 4 are inserted in the conveyor by proper feeding means (not shown in the drawings) and they cover the available surface of the conveyor belt 2 in order to optimize stay times of said castings in the cooling metal tunnel 3.
In the metal tunnel 3, a controlled air flow captured from external environment covers the castings 4 running on the conveyor belt, in order to obtain a thermal decrease by forced convection.
The suction air outlet conduit 7 can be placed in the middle of the metal tunnel 3, in order to form a length with an air flow in the same direction of the castings and another length with an opposite air flow (Figure 1). In this configuration, air entrance can also be performed through properly dimensioned conduits 14, designed to introduce air and placed at the opposite ends of the metal tunnel (Figure 2). This method of cooling air treatment provides for a negative pressure inside the tunnel 3 with respect to the environment, thus preventing air and dust contained in the cooler to exit in uncontrolled way.
If a completely opposite air flow with respect to the movement direction of the material to be cooled is needed, to optimize the air jet cooling method, the engineering solution is shown in Figure 3. In this case, zones with positive pressure with respect to the environment can be obtained, and it is thus necessary to limit the uncontrolled emission of heated air and any dust. For this purpose, an "air blade" sealing system 17 is a part of the present invention, consisting of a series of nozzles or openings placed from the outside in the direction of the free section between the conveyor belt side fins and said fins protection plate (Figure 7). The air blade 17 has the purpose to limit the fluid consisting of cooling air which flows in orthogonal direction, avoiding the uncontrolled emission and the consequent external environment pollution.
A series of nozzles 5 for atomizing cooling water contributes to obtain the castings desired temperature at the metal tunnel 3 outlet. Disposition, flow rate and number of cooling water atomizing nozzles 5 are defined depending on stay time inside the tunnel 1, material 4 flow rate and cooling fluid speed.
Atomizing nozzles 5 intervention can be controlled by a PLC (not shown in the drawings), which manages the signal coming from temperature sensors 6 placed inside the metal tunnel 3.
In the metal tunnel 3 there can be baffles (not shown in the drawings) able to generate air flow turbulence and improve the thermal exchange by forced convection.
The conveyor 1 can additionally be provided with a cleaning system 16 positioned under the conveyor belt 2 and placed at the return section, to avoid that any fine material adherent to the plates can fall and cause accumulations in the area beneath the tunnel. Utilization of said cleaning system 16 is determined by the presence of any fine material and by said fine material adhesion features to the plates.
At the entrance of the metal tunnel 3 there can be a castings signaling system (not shown in the drawings), mechanic or with photoelectric cell, to co-ordinate the belt speed with the feeding rate of the castings in order to optimize their arrangement on the belt during the cooling operation.
To cope with the specific thermal decay requirements of the castings 4, the feed speed of the conveyor belt 2 can be adjusted according to the signal coming from said temperature sensors 6 and to the signal, belonging to the production unit, which identifies the feeding rate of the castings 4 to the conveyor.
About the foregoing description, it should be pointed out that several modifications, adjustments, additions, variations and replacements of elements with equivalent others could be made, without falling outside the scope of protection defined in the appended claims.

Claims

1. A metal belt cooler (1) for castings (4) or other high temperature material, of which a decrease of the thermal contents during transportation is obtained with an air flow running through a tunnel in the opposite or in the same direction with respect to the material, substantially comprising a metal conveyor belt (2) moving means activated by powered mechanisms, a metal tunnel (3) properly equipped, in which a thermal decay of the castings (4) running therein is obtained, sensors for measuring the temperature of the material and water atomizing nozzles for a further temperature decrease.
2. The metal belt cooler according to claim 1 characterized in that the metal conveyor belt (2) moving means consists of a belt (8) woven with special steel, to which a series of partially overlapping steel plates (9) is fixed, the belt (8) being supported by upper flat rollers (10) and lower support rollers (11), and the torque being transmitted by friction by a cylindrical traction drum (12), opposed to a snub drum (13), provided with a tension device.
3. The metal belt cooler according to claim 1 characterized in that, in the metal tunnel (3), a fan controlled air flow captured from the environment covers the castings (4) running on the conveyor belt (2), in order to obtain a thermal decrease by forced convection, with the suction conduit (7) placed in the middle or at one end of the tunnel, the tunnel (3) being optionally provided with air inlet conduits (14).
4. The metal belt cooler according to claim 1 characterized in that the metal tunnel (3) is provided with baffles to increase air turbulence, and with contact or infrared temperature sensors (6) whose signals can be received and processed by a PLC.
5. The metal belt cooler according to claim 1 characterized in that, at the connection between the metal tunnel (3) and the conveyor belt (2), a properly dimensioned air barrier (17) can be provided, in order to oppose any positive pressure inside the cooling tunnel and to avoid dust emission.
6. The metal belt cooler according to claim 1 characterized in that it can optionally be provided with a cleaning system (16) positioned under the conveyor belt (2) and placed at the return section, in order to avoid that any fine material, adherent to the plates, can fall and cause accumulations in said return section of the conveyor belt (2).
7. The metal belt cooler according to claim 1 characterized in that the metal tunnel (3) is provided with nozzles (5) for atomizing cooling water to contribute to the thermal decay of the castings coming out from the tunnel.
8. The metal belt cooler according to claim 1 characterized in that the metal tunnel is provided with contact or infrared temperature sensors (6) whose PLC input signal can be used to manage the atomizing nozzles (5) controlling the outlet temperature of the material (4).
9. The metal belt cooler according to claim 1 characterized in that at the entrance of the metal tunnel (3) there can be a castings signaling system, mechanic or with photoelectric cell, to co-ordinate the belt speed with the feeding rate of the castings in order to optimize their arrangement on the belt during cooling operation.
10. The metal belt cooler according to claim 1 characterized in that the feed speed of the conveyor belt (2) can be adjusted according to the signal coming from the temperature sensors (6) and from signals, belonging to the production unit, which identify the feeding rate of the castings (4) to the conveyor (1 ).
PCT/EP2004/005969 2003-06-10 2004-06-02 Metal belt continuous cooler WO2004110674A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI2003A001167 2003-06-10
IT001167A ITMI20031167A1 (en) 2003-06-10 2003-06-10 CONTINUOUS METAL BELT COOLER.

Publications (2)

Publication Number Publication Date
WO2004110674A2 true WO2004110674A2 (en) 2004-12-23
WO2004110674A3 WO2004110674A3 (en) 2005-04-28

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Family Applications (1)

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IT (1) ITMI20031167A1 (en)
WO (1) WO2004110674A2 (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103551550A (en) * 2013-11-08 2014-02-05 无锡中鼎物流设备有限公司 Casting conveyor line cooling device
CN104785723A (en) * 2015-03-25 2015-07-22 池州市华兴天骑精密机械铸造有限公司 Casting die repeated cooling device
CN104785724A (en) * 2015-03-25 2015-07-22 池州市华兴天骑精密机械铸造有限公司 Casting die cooling device
CN106001523A (en) * 2016-06-16 2016-10-12 含山县峰园精铸加工厂 Double cooling device for castings
CN107855506A (en) * 2017-11-27 2018-03-30 刘洋 Cooling device for wheel hub
CN108080610A (en) * 2018-01-11 2018-05-29 乐清市宏牛电气科技有限公司 A kind of mechanical automation Mechanical processing of casting Quick cooling equipment
CN110255057A (en) * 2019-06-17 2019-09-20 巢湖云海镁业有限公司 A kind of magnesium alloy parts production cooling device of conveyer belt
US10722824B2 (en) 2016-10-18 2020-07-28 Ecolab Usa Inc. Device to separate water and solids of spray water in a continuous caster, and method to monitor and control corrosion background
CN113213168A (en) * 2021-05-08 2021-08-06 荣成市蓝星特种玻璃有限公司 Multifunctional glass processing production line
CN113371426A (en) * 2021-04-29 2021-09-10 江苏顺达机械设备有限公司 Cleaning device for heavy-duty discharging car
WO2021198942A1 (en) 2020-04-03 2021-10-07 Magaldi Power S.P.A. System and method for the thermal processing of bulk material by intense concentrated solar power
CN113560547A (en) * 2021-07-26 2021-10-29 羊辉宁 Aluminum alloy ingot casting cooling conveyer belt

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103884194A (en) * 2014-03-25 2014-06-25 济钢集团有限公司 Sealing device for sintering liquid sealing blast annular cooler
CN106378440B (en) * 2015-08-05 2018-11-06 新泰市鑫晟铸造有限公司 A kind of excavator backplate casting discharging mechanism
CN116900271B (en) * 2023-09-13 2023-12-19 南京速鸿电子科技有限公司 Die-casting production product cooling temperature measuring device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3976120A (en) * 1972-08-25 1976-08-24 Demag Aktiengesellschaft Casting arrangement for forming plate-shaped metal parts
DE2736148A1 (en) * 1977-08-11 1979-02-22 Arenco Bmd Maschfab VIBRANT COOLING CONVEYOR FOR COOLING HOT GOODS, IN PARTICULAR CASTINGS
GB1600405A (en) * 1978-05-04 1981-10-14 Carrier Drysys Ltd Cooling of articles
DE3323839A1 (en) * 1983-07-01 1985-01-03 Erich 5630 Remscheid Hilgeroth Process for cooling hot castings and apparatus for carrying out the process
WO2003071189A1 (en) * 2002-02-21 2003-08-28 Magaldi Richerche E Brevetti S.R.L. Extractor/cooler of loose materials through the use of conveyor belt equipped with bored and winged plates
WO2003085323A1 (en) * 2002-04-09 2003-10-16 Magaldi Ricerche E Brevetti S.R.L. Air and water conveyor/cooler for hot loose materials

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3976120A (en) * 1972-08-25 1976-08-24 Demag Aktiengesellschaft Casting arrangement for forming plate-shaped metal parts
DE2736148A1 (en) * 1977-08-11 1979-02-22 Arenco Bmd Maschfab VIBRANT COOLING CONVEYOR FOR COOLING HOT GOODS, IN PARTICULAR CASTINGS
GB1600405A (en) * 1978-05-04 1981-10-14 Carrier Drysys Ltd Cooling of articles
DE3323839A1 (en) * 1983-07-01 1985-01-03 Erich 5630 Remscheid Hilgeroth Process for cooling hot castings and apparatus for carrying out the process
WO2003071189A1 (en) * 2002-02-21 2003-08-28 Magaldi Richerche E Brevetti S.R.L. Extractor/cooler of loose materials through the use of conveyor belt equipped with bored and winged plates
WO2003085323A1 (en) * 2002-04-09 2003-10-16 Magaldi Ricerche E Brevetti S.R.L. Air and water conveyor/cooler for hot loose materials

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103551550A (en) * 2013-11-08 2014-02-05 无锡中鼎物流设备有限公司 Casting conveyor line cooling device
CN104785723A (en) * 2015-03-25 2015-07-22 池州市华兴天骑精密机械铸造有限公司 Casting die repeated cooling device
CN104785724A (en) * 2015-03-25 2015-07-22 池州市华兴天骑精密机械铸造有限公司 Casting die cooling device
CN106001523A (en) * 2016-06-16 2016-10-12 含山县峰园精铸加工厂 Double cooling device for castings
US10722824B2 (en) 2016-10-18 2020-07-28 Ecolab Usa Inc. Device to separate water and solids of spray water in a continuous caster, and method to monitor and control corrosion background
CN107855506A (en) * 2017-11-27 2018-03-30 刘洋 Cooling device for wheel hub
CN108080610A (en) * 2018-01-11 2018-05-29 乐清市宏牛电气科技有限公司 A kind of mechanical automation Mechanical processing of casting Quick cooling equipment
CN110255057A (en) * 2019-06-17 2019-09-20 巢湖云海镁业有限公司 A kind of magnesium alloy parts production cooling device of conveyer belt
WO2021198942A1 (en) 2020-04-03 2021-10-07 Magaldi Power S.P.A. System and method for the thermal processing of bulk material by intense concentrated solar power
CN113371426A (en) * 2021-04-29 2021-09-10 江苏顺达机械设备有限公司 Cleaning device for heavy-duty discharging car
CN113371426B (en) * 2021-04-29 2022-04-12 江苏顺达机械设备有限公司 Cleaning device for heavy-duty discharging car
CN113213168A (en) * 2021-05-08 2021-08-06 荣成市蓝星特种玻璃有限公司 Multifunctional glass processing production line
CN113213168B (en) * 2021-05-08 2022-06-10 荣成市蓝星特种玻璃有限公司 Multifunctional glass processing production line
CN113560547A (en) * 2021-07-26 2021-10-29 羊辉宁 Aluminum alloy ingot casting cooling conveyer belt

Also Published As

Publication number Publication date
ITMI20031167A1 (en) 2004-12-11
WO2004110674A3 (en) 2005-04-28
ITMI20031167A0 (en) 2003-06-10

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