CN106914585A - The hot sand processing method of evaporative pattern - Google Patents
The hot sand processing method of evaporative pattern Download PDFInfo
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- CN106914585A CN106914585A CN201710278460.4A CN201710278460A CN106914585A CN 106914585 A CN106914585 A CN 106914585A CN 201710278460 A CN201710278460 A CN 201710278460A CN 106914585 A CN106914585 A CN 106914585A
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- heat exchange
- heat
- sand
- exchange container
- pipeline
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
- B22C5/08—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by sprinkling, cooling, or drying
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
- B22C9/04—Use of lost patterns
- B22C9/046—Use of patterns which are eliminated by the liquid metal in the mould
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
The invention discloses a kind of hot sand processing method of evaporative pattern, including using allowing molding sand into heat exchange container and heat exchanging fluid pipeline carries out the cooling step of Hot swapping mode, it is characterized in that, it is additionally included in molding sand and before heat exchanging fluid pipeline carries out heat exchange, molding sand is allowed by a component for vibrational state, drive molding sand vibration and dust excluding hood is set above the component by the component and aspirated, tentatively to take away heat and the step of molding sand is mingled with dust.The present invention has and implements simple, and with low cost, cooling effect is excellent, and molding sand cooling effectiveness is high, is influenceed small by seasonal temperature, using more stable, adapt to environment temperature it is more preferable the advantages of.
Description
Technical field
The present invention relates to lost foam casting apparatus field, specifically a kind of hot sand processing method of evaporative pattern.
Background technology
Lost foam casting（Also known as cavityless casting）Being will be similar to casting dimension shapeParaffinOr bubbles model bonding group
Synthetic model cluster, brushesFireproof coatingAnd after drying, be embedded in dryQuartz sandMiddle vibration molding, pours into a mould under negative pressure, makes model gas
Change, liquid metals occupies modal position, is formed after solidification coolingCastingNovel casting method.The technique is without modulus, nothing point
Type face, without core, thus casting does not have overlap, burr and pattern draft, and reduces the size caused because core is combined
Error.Therefore, over nearly 20 yearsTechnology of EPCRapid development has been obtained in worldwide.
On disappearance foundry production line, casting model powder needs treated with cooling etc. by broken, screening after being peeled off from casting embryo
Journey sends leading portion molding procedure back to.Hot sand after wherein casting is very high due to temperature, therefore how rapidly to carry out cooling treatment
It is the key for improving casting efficiency to come into operation again.
The existing casting model powder type of cooling, there is following several, and a kind of is that hot sand is placed on into specified place using most traditional
Temperature fall is cooled down, and this mode is very slow in the presence of cooling and occupied ground is larger, it is difficult to the defect such as management, substantially superseded.
Two are cooled down by boiling cooling bed, but it is higher to there is equipment cost, the defect such as need follow-up after-treatment waste gas more.Three
It is the most commonly used by the way of heat exchanger is cooled down, in the existing general heat exchanger type of cooling, due to water
Specific heat capacity is larger, therefore is usually, as circulatory mediator, to realize that recirculated water cooling heat exchange is processed using cooling water.Such as ZL
A kind of 201610715605.8 once disclosed lost foam production line sand quickly cooling devices；A kind of once disclosed moldings that disappear of ZL
Sand cooling device is made, this cooling technology by the way of circulating water is belonged to.
But this common recirculated water cooling heat exchange processing mode, equally exists that occupied ground is more, and labor strength is big,
Environmental pollution is serious, and climate influences the defect such as larger.More more hot area（Such as where applicant Chongqing ground
Area）Summer water temperature it is higher when, due to cooling water Hot swapping cause temperature raise after, it is difficult to fast cooling Posterior circle utilize,
Cause to occur that cooling effectiveness is lower, time-consuming for system, high energy consumption, the big defect of running noises；So that sand handling process deposits sand amount
Greatly, if separately larger using circulating water cooling equipment volume and floor space.
Therefore the height of cooldown rate governs the operation level of whole sand handling process and equipment；For people in the art
Member is necessary to research and develop a kind of cooling effect more excellent, and molding sand cooling effectiveness is high, is influenceed small by seasonal temperature, uses more stable, adapts to
The hot sand treatment technology of the more preferable evaporative pattern of environment temperature.
The content of the invention
For above-mentioned the deficiencies in the prior art, the technical problems to be solved by the invention are：How a kind of implementation letter is provided
Single, with low cost, cooling effect is excellent, and molding sand cooling effectiveness is high, is influenceed small by seasonal temperature, using more stable, adapts to environment
The hot sand processing method of the more preferable evaporative pattern of temperature.
In order to solve the above-mentioned technical problem, present invention employs following technical scheme：
A kind of hot sand processing method of evaporative pattern, including using allowing the molding sand to carry out heat and put with heat exchanging fluid pipeline into heat exchange container
Change the cooling step of mode, it is characterised in that be additionally included in molding sand and before heat exchanging fluid pipeline carries out heat exchange, allow molding sand to pass through
One component of vibrational state, drives molding sand vibration and sets dust excluding hood above the component and aspirated, with first by the component
Step takes away heat and the step of molding sand is mingled with dust.
So, by the way of being vibrated to molding sand and combining distinguished and admirable suction, by vibrating the dust and heat that are mingled with molding sand
Upspring, then siphoned away by distinguished and admirable, tentatively take away molding sand heat and dust, convenient follow-up further cooling treatment improves treatment effect
Rate.
As optimization, gaseous refrigerant is passed through in heat exchanging fluid pipeline, Hot swapping is carried out by the way of air cooling.
So the mode of air cooling realizes that circulating cooling is processed after preferably can lowering the temperature to the cooling medium after intensification,
Do not influenceed by seasonal temperature, improved cooling effect.
Used as optimization, this method employs following processing system and realizes, the processing system includes turnover machine and heat exchange
Device, heat-exchanger rig includes a heat exchange container, and heat exchange container is internally provided with the fluid heat transfer pipeline for heat exchange, exchanges heat
Fluid line is connected with the heat exchanging fluid cooling device being arranged at outside heat exchange container and circulated for the heat exchanging fluid in it, is turned over
Punch-out equipment mould turnover direction side is connected by molding sand conveying device and heat exchange container upper end sand inlet, and heat exchange container lower end middle part is set
There is band to shake out the sand export of switch valve；Heat exchanging fluid in the heat exchanging fluid pipeline is gaseous refrigerant, the heat exchanging fluid
Cooling device includes the compressor of air conditioner and A/C evaporator of series connection, and compressor of air conditioner is used for gaseous refrigerant boil down to liquid
State, A/C evaporator is used to be converted into the refrigerant of liquid the gaseous state of low temperature；
Also include dust pelletizing system, dust pelletizing system includes being arranged at the dust excluding hood of dedusting position, and and removing of being connected with dust excluding hood
Dirt blower fan, dust pelletizing system also includes the cleaning shaft being communicated between dust excluding hood and dedusting fan, and cleaning shaft includes being arranged at
Dust-collecting and heat exchanging pipeline in heat exchange container inner chamber；
A vibration conveying mechanism into molding sand conveying device, vibrating transportation is correspondingly arranged on positioned at the side in turnover machine mould turnover direction
Machine is exported and the linking of heat exchange container upper end sand inlet, and dust excluding hood includes being correspondingly arranged at the conveyer dedusting above jigging conveyer
Cover.
So using gaseous refrigerant as heat exchanging fluid, the mode phase of the mode of this air cooling and existing conventional water-cooled
Than gaseous refrigerant can rapidly lower the temperature and take away in heat exchanging fluid cooling device by compressor of air conditioner and A/C evaporator
Heat, can fast cooling Posterior circle utilize, drastically increase heat exchange efficiency, so, and using cooling water as changing
The water-cooling pattern of hot fluid is compared, and the cooling of heat exchanging fluid is influenceed smaller by temperature.It is set to be particularly suitable for being difficult to soon in cooling water
The high temperature area of prompt drop temperature treatment uses.The distinguished and admirable pipeline of dust pelletizing system is set in simultaneity factor is partly into heat exchange appearance
Dust-collecting and heat exchanging pipeline is formed in device, it is possible to use dust-collecting and heat exchanging pipeline and molding sand carry out heat exchange, by dust-collecting and heat exchanging pipeline
The dedusting in portion is compared with the distinguished and admirable heat for taking away a part of molding sand with existing heat-exchanger rig, and additional heat exchange device is not increased
On the premise of power, both realize dedusting, dust pelletizing system make use of again to improve heat exchange efficiency, cleaning shaft reach dedusting and
The double effectses of cooling, therefore drastically increase the cooling effect that exchanged heat to molding sand.
Jigging conveyer specifically, an including angularly disposed delivery chute component, delivery chute component upper end is arranged at
One side-lower in turnover machine mould turnover direction, is provided with vibrator on delivery chute component, delivery chute member lower is outlet, conveyer
Dust excluding hood covering is arranged on delivery chute component top.Molding sand is poured into jigging conveyer by turnover machine mould turnover when so causing treatment
In, the conveying to molding sand is realized in vibration by the delivery chute component of jigging conveyer so that in vibration processes, molding sand is mingled with
Partial heat and dust can be siphoned away by the wind-force in the conveyer dust excluding hood of top well, reach rough dusting and take away
The effect of heat.Jigging conveyer conveys molding sand by the way of vibration, the dust excluding hood for coordinating top to set, and enables to vibration
When molding sand in the dust that is mingled with can be gone out by shake and be taken away by distinguished and admirable, improve dust removing effects.
Used as optimization, the heat-exchanger rig includes that a pre- colod-application heat exchange container and a heat exchange for cooling are held
Device, turnover machine mould turnover direction side and pre- colod-application heat exchange container upper end sand inlet linking, bring out under pre- colod-application heat exchange container
Sha Kou sides are additionally provided with outer end bypass obliquely and go out sandpipe, bypass out the heat exchange container upper end sand inlet of sandpipe and cooling
Linking, the heat exchange container lower end sand export of cooling is used to shake out to lost foam casting boxcar；In pre- colod-application heat exchange container
Circulated with heat exchanging fluid cooling device again after heat exchanging fluid pipeline communication in heat exchanging fluid pipeline and the heat exchange container of cooling
Connection.
So, two sets of heat exchange containers arranged side by side are employed in heat-exchanger rig to be used in series, one is realized precooling, a realization
Cooling, drastically increases cooling effect and cooling treatment efficiency.
Used as optimization, the charging side of heat exchange container is also vertically provided with an elevator side by side in the heat-exchanger rig,
Elevator lower end is provided with enters sand hopper for entering the elevator of sand, and elevator upper end sand export is by sending that outer end is set obliquely
Sand cylinder is connected to the sand inlet of heat exchange container upper end.
So, laggard sand to heat exchange container is lifted using elevator so that heat exchange container can be arranged at together with turnover machine
One ground, makes it be beneficial to layout and installs, save space.
Used as optimization, elevator includes vertically arranged elevator shell, and elevator shell inner cavity upper and lower ends are provided with
Sprocket wheel, upper end sprocket wheel and the elevator motor drive connection positioned at elevator housing exterior, are arranged with the sprocket wheel of upper and lower ends
In the loop chain of vertical annular, chain bucket is provided with loop chain, chain bucket enters sand when being moved across after the sprocket wheel of lower end with loop chain from elevator
Bucket connects sand, by being shaked out from elevator upper end sand export after the sprocket wheel of upper end.Circular chain bucket hoister is so used, can be preferably
Avoid blocking, it is ensured that work is smooth.Existing belt elevator or wire belt bucket can also be used when implementing certainly
The existing Structure of hoist such as formula elevator realizes lifting.
Used as optimization, the heat exchange container lower end is additionally provided with outer end and is connected to elevator obliquely near elevator side
Enter the sand-returning pipe of sand hopper, sand switch valve is provided with back on sand-returning pipe.So, molding sand can be opened back after being exchanged heat in heat exchange container
Sandpipe realizes back sand to elevator, again returns to heat exchange container and realizes heat exchange, and then realizes the cycle heat exchange treatment to molding sand,
Until temperature is reduced to and meets requirement and turn off back sand switch valve, it is ensured that heat transfer effect.
Sand inlet lower section adjacent in upper end is located at as optimization, in heat exchange container inner chamber and is horizontally arranged with vibration along inner chamber
Material screen, it is the heat transfer space for being provided with fluid heat transfer pipeline and dust-collecting and heat exchanging pipeline to vibrate equal material screen lower section.
So, the uniformity of knockout distribution can be improved to improve heat transfer effect by the equal material screen vibrating shakeout of vibration.
Further, vibrating equal material screen includes being transversely mounted on the curved arc that raised up in the middle part of heat exchange container inner chamber
Shape screen cloth, also including the shaker screen on screen cloth；It is located in the heat exchange container inner chamber inside at the sand inlet of upper end
Be extended have tubular enter sand cylinder, enter sand cylinder obliquely and outlet just to curved screen middle part top set.
So so that enter sand cylinder knockout to screen cloth, sand is left out by mistake under during molding sand slides in the middle part of screen cloth to surrounding,
Preferably beneficial to the uniformity that knockout is distributed in the horizontal direction is improved, preferably to improve heat transfer effect.
Used as optimization, heat exchange container inner chamber upper end is additionally provided with heat exchange container dust excluding hood, and heat exchange container dust excluding hood upper end leads to
Piping is connected in cleaning shaft.
So, heat exchange container dust excluding hood can exchange heat container inside and produce upward distinguished and admirable suction so that heat exchange container
Interior knockout is distinguished and admirable toward upper band by from the bottom up while being exchanged heat with fluid heat transfer pipeline and dust-collecting and heat exchanging pipeline
Heat is walked, multiple heat transfer effect is realized, heat exchange efficiency is improved；In addition, upward wind can be relied on during knockout drops
Stream enables that tiny dust in molding sand is preferably taken away by distinguished and admirable, realizes molding sand type selecting effect, and molding sand subsequently without entering again
The treatment of the type selectings such as row cleaning, drying, improves molding sand treatment whole efficiency.During specific implementation, heat exchange container dust excluding hood is covered in screen cloth
Top, the upward distinguished and admirable suction that such heat exchange container dust excluding hood is produced will preferably can be shaken on screen cloth upwards through screen cloth
Molding sand in the dust that is mingled with take away, improve molding sand dust removing effects, while vibration that can also be preferably with screen cloth coordinates, improve
Uniform effect of the molding sand on screen cloth, preferably improves the uniformity that molding sand falls, and then preferably improves molding sand in heat exchange appearance
Heat transfer effect in device inner chamber.
Used as optimization, the left and right sides of heat exchange container is each provided with a dedusting interlayer cavity, two dedusting interlayers
Many spaced dust-collecting and heat exchanging pipelines arranged side by side are provided with and communicated between cavity, two dedusting interlayer cavitys each outwards connect
Pass in cleaning shaft；The left and right sides of heat exchange container is also each provided with a heat exchanging fluid interlayer cavity, two heat exchanging fluids
Many spaced fluid heat transfer pipelines arranged side by side are provided with and communicated between interlayer cavity, two heat exchanging fluid interlayer cavitys are each
Pass outwardly pipeline communication to heat exchanging fluid cooling device.
So, the structure can be realized well carries out distinguished and admirable being incorporated into heat exchange container inner chamber of dust pelletizing system
Exchange heat to improve the heat exchanger effectiveness of molding sand.Specifically, the left and right sides of heat exchange container is each provided with a dedusting interlayer
Cavity, dedusting air-flow is entered into heat exchange container inner chamber by dedusting interlayer cavity and then through excessive dirt heat exchange pipeline of eradicating
Exchanged heat；With reference to many heat exchange of fluid heat transfer pipeline, changing for the molding sand that is dropped in heat exchanging container intracavity is greatly enhanced
Thermal effect.
Further, heat exchange container horizontal cross-section is rectangle, is so more favorable for each interlayer cavity and dust-collecting and heat exchanging pipe
The arrangement in road and fluid heat transfer pipeline, improves space efficiency utilization.
Further, dedusting interlayer cavity is located at heat exchanging fluid interlayer cavity outside, and dedusting interlayer cavity middle part
Each outwards it is communicated in cleaning shaft by a plenum chamber in outside taper type.So, the plenum chamber of setting is caused
Dedusting is distinguished and admirable can lean on plenum chamber rectification after enter into dust-collecting and heat exchanging pipeline, reduce pneumatic noise, while beneficial to dedusting it is distinguished and admirable
In dust converge sedimentation with interlayer cavity in plenum chamber and dedusting, beneficial to improving follow-up air-flow velocity.Dedusting interlayer
Cavity is arranged at outside and conveniently setting can clear up its interior laying dust.
Further, lower end offers dedusting cleaning door on the outside of dedusting interlayer cavity, is easy to open cleaning dust.
Further, the heat exchanging fluid interlayer cavity upper end of heat exchange container side is outwards connected and is connected by upward pipeline
Heat exchanging fluid cooling device is connected to, the heat exchanging fluid interlayer cavity lower end of heat exchange container opposite side is outwards connected by downward pipeline
Go out and be connected to heat exchanging fluid cooling device.The connection of pipeline is so facilitated to install, while beneficial to the entirety circulation of heat exchanging fluid
Flowing.
Used as optimization, the dust-collecting and heat exchanging pipeline is to be in tilted layout and distinguished and admirable inside direction diagonally downward and pipeline
Flow direction is consistent.So, can prevent it is distinguished and admirable in the dust that is mingled with piled up in dust-collecting and heat exchanging pipeline and cause blocking or drop
The low distinguished and admirable flow velocity of dedusting.
Further, the dust-collecting and heat exchanging pipeline and fluid heat transfer pipeline be along level arranged in rows, and each
Be correspondingly arranged is fluid heat transfer pipeline edge and the opposite direction of dust-collecting and heat exchanging pipeline for multiple rows of along the arrangement of short transverse uniform intervals
It is in tilted layout to be formed staggeredly, and it is intervening portion often to exclude dirt heat exchange pipeline and fluid heat transfer pipeline centre position.So, pipeline
Being in tilted layout can avoid knockout from being piled up in pipeline external surface, while the pipeline of alternating inclinations arrangement can also avoid guiding from falling
Sand is migrated toward same direction, therefore can better ensure that the uniformity that molding sand falls in heat exchange container, preferably to improve heat
Exchange efficiency.
Used as optimization, the dust-collecting and heat exchanging pipeline and fluid heat transfer pipeline external surface are each arranged at intervals with aluminum fin-stock.
So can preferably improve the heat exchanger effectiveness with knockout.
Further, the aluminum fin-stock of dust-collecting and heat exchanging pipeline and fluid heat transfer pipeline external surface is each lateral along before and after pipeline two
Outer lug is formed and is obliquely installed in the same direction with pipeline（During specific implementation aluminum fin-stock angle of inclination more than place pipeline angle of inclination with
Slid beneficial to molding sand）, often eradicate dirt heat exchange pipeline aluminum fin-stock correspondence staggeredly fluid heat transfer pipeline on have vertically it is right
The aluminum fin-stock answered, and the vertical projection of the aluminum fin-stock lower half of each dust-collecting and heat exchanging pipeline and the corresponding layer fluid heat exchange pipeline
On aluminum fin-stock lower half vertical projection have one coincidence part.So aluminum fin-stock prolong fore-and-aft direction be extended can
Heat exchanger effectiveness is also improved to improve its effect of contact with the molding sand that drops, while corresponding aluminum fin-stock is perpendicular on adjacent pipeline
Dislocation overlapping is arranged upwards so that it is corresponding that the molding sand slid on the aluminum fin-stock of each dust-collecting and heat exchanging pipeline can drop to lower section
Aluminum fin-stock surface on fluid heat transfer pipeline, and then enable that molding sand forms the left successively of class zigzag in heat exchange container inner chamber
Right deflecting interlocks whereabouts.So, residence time of the molding sand in heat exchange container is dramatically improved, also high degree raising type
The contact heat-exchanging efficiency of sand and aluminum fin-stock so that molding sand heat exchange cooling effect is greatly improved.
In sum, the present invention has and implements simply, and with low cost, cooling effect is excellent, and molding sand cooling effectiveness is high, by season
Section temperature influence is small, using more stable, adapt to environment temperature it is more preferable the advantages of.
Brief description of the drawings
Fig. 1 is the structural representation of the processing system that the present invention is used.
Fig. 2 is the structural representation of an independent heat exchange container in Fig. 1, the structural representation of display portion aluminum fin-stock in figure.
Fig. 3 is the horizontal cross of Fig. 2, and aluminum fin-stock structure is not shown in figure.
Fig. 4 is that the present invention shows that molding sand slides the schematic diagram of process between aluminum fin-stock when implementing.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
During specific implementation：A kind of hot sand processing method of evaporative pattern, including use allows molding sand to enter in heat exchange container and exchange heat
Fluid line carries out the cooling step of Hot swapping mode, and its feature is to be additionally included in molding sand and heat exchanging fluid pipeline to carry out heat
Before exchange, allow molding sand by a component for vibrational state, drive molding sand vibration and set above the component by the component and remove
Dust hood is aspirated, tentatively to take away heat and the step of molding sand is mingled with dust.
So, molding sand heat and dust are tentatively taken away by the way of being vibrated to molding sand and combining distinguished and admirable suction, it is convenient after
Continue further cooling treatment, improve treatment effeciency.
In this method, gaseous refrigerant is passed through in heat exchanging fluid pipeline, Hot swapping is carried out by the way of air cooling.Such gas
Cold mode realizes that circulating cooling is processed after preferably can lowering the temperature to the cooling medium after intensification, not by seasonal temperature shadow
Ring, improve cooling effect.
In this specific embodiment, employ following processing system and realize this method, the processing system such as Fig. 1-4 institutes
Show, including turnover machine 1 and heat-exchanger rig, heat-exchanger rig includes a heat exchange container 2, heat exchange container 2 is internally provided with for heat
The fluid heat transfer pipeline 3 of exchange, heat exchanging fluid pipeline 3 is connected simultaneously with the heat exchanging fluid cooling device 4 being arranged at outside heat exchange container 2
Circulated for the heat exchanging fluid in it, the mould turnover direction side of turnover machine 1 and the upper end sand inlet of heat exchange container 2 are connected, and heat exchange is held
The lower end of device 2 middle part is provided with band and shakes out the sand export 5 of switch valve；Wherein, also including dust pelletizing system, dust pelletizing system includes being arranged at
The dust excluding hood of dedusting position, and and the dedusting fan 6 that is connected with dust excluding hood, dust pelletizing system also includes being communicated in dust excluding hood and removing
Cleaning shaft 7 between dirt blower fan, cleaning shaft includes the dust-collecting and heat exchanging pipeline 8 being arranged in heat exchange container inner chamber.During implementation,
Dedusting fan outlet side is connected with dust-removal cloth-bag and constitutes bag-type dust removal system.
So, the distinguished and admirable pipeline of dust pelletizing system is set and is partly into formation dust-collecting and heat exchanging pipeline in heat exchange container,
Heat exchange can be carried out using dust-collecting and heat exchanging pipeline and molding sand, one is taken away with distinguished and admirable by the dedusting inside dust-collecting and heat exchanging pipeline
The heat of tap sand, therefore compared with existing heat-exchanger rig, on the premise of additional heat exchange device power is not increased, both realized and removed
Dirt, make use of dust pelletizing system to improve heat exchange efficiency again, and cleaning shaft reaches the double effectses of dedusting and cooling, therefore greatly
Improve the cooling effect that exchanged heat to molding sand.
Wherein, the side positioned at the mould turnover direction of turnover machine 1 is correspondingly arranged on a jigging conveyer 9, and jigging conveyer 9 goes out
Mouth and the linking of heat exchange container upper end sand inlet, dust excluding hood include being correspondingly arranged at the conveyer dust excluding hood above jigging conveyer
10.Specifically, jigging conveyer includes an angularly disposed delivery chute component, and delivery chute component upper end is arranged at turnover machine
One side-lower in mould turnover direction, is provided with vibrator on delivery chute component, delivery chute member lower is outlet, conveyer dust excluding hood
Covering is arranged on delivery chute component top.
So, be poured into molding sand in jigging conveyer by turnover machine mould turnover, and the delivery chute component by jigging conveyer exists
The conveying to molding sand is realized during vibration so that in vibration processes, the partial heat and dust that molding sand is mingled with can be gone up well
Wind-force in the conveyer dust excluding hood of side is siphoned away, and is reached rough dusting and is taken away the effect of heat.Jigging conveyer is using vibration
Mode convey molding sand, the dust excluding hood for coordinating top to set, the dust being mingled with molding sand when enabling to vibration can be gone out by shake
And taken away by distinguished and admirable, improve dust removing effects.
Wherein, the heat exchanging fluid in the heat exchanging fluid pipeline 3 is gaseous refrigerant, the heat exchanging fluid cooling device 4
Including the compressor of air conditioner and A/C evaporator connected, compressor of air conditioner is used for gaseous refrigerant boil down to liquid, and air-conditioning steams
Hair device is used to be converted into the refrigerant of liquid the gaseous state of low temperature.
So using gaseous refrigerant as heat exchanging fluid, the mode phase of the mode of this air cooling and existing conventional water-cooled
Than gaseous refrigerant can rapidly lower the temperature and take away in heat exchanging fluid cooling device by compressor of air conditioner and A/C evaporator
Heat, can fast cooling Posterior circle utilize, drastically increase heat exchange efficiency, so, and using cooling water as changing
The water-cooling pattern of hot fluid is compared, and the cooling of heat exchanging fluid is influenceed smaller by temperature.It is set to be particularly suitable for being difficult to soon in cooling water
The high temperature area of prompt drop temperature treatment uses.
Wherein, the heat-exchanger rig includes a pre- colod-application heat exchange container and a heat exchange container for cooling, turns over
The mould turnover direction side of punch-out equipment 1 and pre- colod-application heat exchange container upper end sand inlet linking, pre- colod-application heat exchange container lower end sand export
Side is additionally provided with outer end bypass obliquely and goes out sandpipe 11, bypasses out the heat exchange container upper end sand inlet of sandpipe 11 and cooling
Linking, the heat exchange container lower end sand export of cooling is used to shake out to lost foam casting boxcar；In pre- colod-application heat exchange container
Circulated with heat exchanging fluid cooling device again after heat exchanging fluid pipeline communication in heat exchanging fluid pipeline and the heat exchange container of cooling
Connection.
So, two sets of heat exchange containers arranged side by side are employed in heat-exchanger rig to be used in series, one is realized precooling, a realization
Cooling, drastically increases cooling effect and cooling treatment efficiency.During implementation, bypass out and switch valve is also equipped with sandpipe, make
It can be used alone with single heat exchange container.
Wherein, the charging side of heat exchange container is also vertically provided with an elevator 12 side by side in the heat-exchanger rig, carries
Rise the lower end of machine 12 and be provided with and enter sand hopper 13 for entering the elevator of sand, the upper end sand export of elevator 12 is set obliquely by outer end
Send the sand inlet that sand cylinder 14 is connected to heat exchange container upper end.
So, laggard sand to heat exchange container is lifted using elevator so that heat exchange container can be arranged at together with turnover machine
One ground, makes it be beneficial to layout and installs, save space.
Wherein, elevator 12 includes vertically arranged elevator shell, and elevator shell inner cavity upper and lower ends are provided with chain
Wheel, upper end sprocket wheel and the drive connection of elevator motor 15 positioned at elevator housing exterior, are arranged with the sprocket wheel of upper and lower ends
In the loop chain 16 of vertical annular, chain bucket is provided with loop chain 16, from elevator when chain bucket is moved across after the sprocket wheel of lower end with loop chain
Enter sand hopper and connect sand, by being shaked out from elevator upper end sand export after the sprocket wheel of upper end.So use circular chain bucket hoister, Neng Gougeng
Avoid blocking well, it is ensured that work is smooth.Existing belt elevator or steel wire rubber can also be used when implementing certainly
The existing Structure of hoist such as band bucket elevator realize lifting.
Wherein, the lower end of the heat exchange container 2 is additionally provided with outer end and is connected to elevator obliquely near elevator side
The sand-returning pipe 17 of sand hopper, is provided with back sand switch valve on sand-returning pipe 17.So, molding sand can be opened after being exchanged heat in heat exchange container
Sand-returning pipe realizes back sand to elevator, again returns to heat exchange container and realizes heat exchange, and then realizes to the cycle heat exchange of molding sand
Reason, until temperature is reduced to and meets requirement and turn off back sand switch valve, it is ensured that heat transfer effect.
Wherein, upper end sand inlet lower section adjacent is located in heat exchange container inner chamber and is horizontally arranged with vibration homocline along inner chamber
Sieve, it is the heat transfer space for being provided with fluid heat transfer pipeline 3 and dust-collecting and heat exchanging pipeline 8 to vibrate equal material screen lower section.
So, the uniformity of knockout distribution can be improved to improve heat transfer effect by the equal material screen vibrating shakeout of vibration.
Wherein, vibrating equal material screen includes being transversely mounted on the curved sieve bend that raised up in the middle part of heat exchange container inner chamber
Net 18, also including the shaker screen 19 on screen cloth；It is located in the heat exchange container inner chamber inside at the sand inlet of upper end
Be extended have a tubular enter sand cylinder 20, enter sand cylinder 20 obliquely and outlet just set to the middle part of curved screen 18 top.
So so that enter sand cylinder knockout to screen cloth, sand is left out by mistake under during molding sand slides in the middle part of screen cloth to surrounding,
Preferably beneficial to the uniformity that knockout is distributed in the horizontal direction is improved, preferably to improve heat transfer effect.
Wherein, heat exchange container inner chamber upper end is additionally provided with heat exchange container dust excluding hood 21, and the upper end of heat exchange container dust excluding hood 21 leads to
Piping is connected in cleaning shaft 7.
So, heat exchange container dust excluding hood can exchange heat container inside and produce upward distinguished and admirable suction so that heat exchange container
Interior knockout is distinguished and admirable toward upper band by from the bottom up while being exchanged heat with fluid heat transfer pipeline and dust-collecting and heat exchanging pipeline
Heat is walked, multiple heat transfer effect is realized, heat exchange efficiency is improved；In addition, upward wind can be relied on during knockout drops
Stream enables that tiny dust in molding sand is preferably taken away by distinguished and admirable, realizes molding sand type selecting effect, and molding sand subsequently without entering again
The treatment of the type selectings such as row cleaning, drying, improves molding sand treatment whole efficiency.During specific implementation, heat exchange container dust excluding hood is covered in screen cloth
Top, the upward distinguished and admirable suction that such heat exchange container dust excluding hood is produced will preferably can be shaken on screen cloth upwards through screen cloth
Molding sand in the dust that is mingled with take away, improve molding sand dust removing effects, while vibration that can also be preferably with screen cloth coordinates, improve
Uniform effect of the molding sand on screen cloth, preferably improves the uniformity that molding sand falls, and then preferably improves molding sand in heat exchange appearance
Heat transfer effect in device inner chamber.Heat transfer space bottom is located at during implementation, in heat exchange container and is set positioned at the top position of sand export 5
There is the blast pipe 22 that outer end opening is bent upwards, so that heat exchange container dust excluding hood suction air in heat transfer space with so that form under
Up distinguished and admirable takes away heat, to realize above-mentioned multiple heat transfer effect；The blast pipe being bent upwards simultaneously can avoid knockout
Blown out from blast pipe.
Wherein, the left and right sides of heat exchange container 2 is each provided with a dedusting interlayer cavity 23, and two dedustings are empty with interlayer
Be provided with and communicated with many spaced dust-collecting and heat exchanging pipelines 8 arranged side by side between chamber 23, two dedustings interlayer cavity 23 each to
It is communicated in cleaning shaft 7 outward；The left and right sides of heat exchange container 2 is also each provided with a heat exchanging fluid interlayer cavity 24, two
Many spaced fluid heat transfer pipelines 3, two heat exchanging fluids arranged side by side are provided with and communicated between heat exchanging fluid interlayer cavity 24
Interlayer cavity 24 each passes outwardly pipeline communication to heat exchanging fluid cooling device 4.
So, the structure can be realized well carries out distinguished and admirable being incorporated into heat exchange container inner chamber of dust pelletizing system
Exchange heat to improve the heat exchanger effectiveness of molding sand.Specifically, the left and right sides of heat exchange container is each provided with a dedusting interlayer
Cavity, dedusting air-flow is entered into heat exchange container inner chamber by dedusting interlayer cavity and then through excessive dirt heat exchange pipeline of eradicating
Exchanged heat；With reference to many heat exchange of fluid heat transfer pipeline, changing for the molding sand that is dropped in heat exchanging container intracavity is greatly enhanced
Thermal effect.
Wherein, the horizontal cross-section of heat exchange container 2 is rectangle, be so more favorable for each interlayer cavity and dust-collecting and heat exchanging pipeline and
The arrangement of fluid heat transfer pipeline, improves space efficiency utilization.
Wherein, dedusting interlayer cavity 23 is located at the outside of heat exchanging fluid interlayer cavity 24, and dedusting is with interlayer cavity 23
Portion is each outwards communicated in cleaning shaft 7 by a plenum chamber 25 in outside taper type.So, the plenum chamber of setting
So that dedusting is distinguished and admirable can lean on plenum chamber rectification after enter into dust-collecting and heat exchanging pipeline, reduce pneumatic noise, while be beneficial to dedusting
Dust convergence sedimentation in interlayer cavity in plenum chamber and dedusting in distinguished and admirable, beneficial to the follow-up air-flow velocity of raising.Dedusting is used
Interlayer cavity is arranged at outside and conveniently setting enabling can clear up its interior laying dust.Meanwhile, the plenum chamber of setting for smaller diameter end to
Outer taper type, preferably can connect with cleaning shaft linking, it is to avoid cross the change suddenly of wind section and produce excessive vortex to stream greatly
And dust preferably preliminary sedimentation in dedusting interlayer cavity is enabled, made in dust-collecting and heat exchanging pipeline with avoiding dust from entering into
Into blocking and reduce heat exchanger effectiveness.
Wherein, the outside lower end of dedusting interlayer cavity 23 offers dedusting cleaning door 26, is easy to open cleaning dust.
Wherein, the upper end of heat exchanging fluid interlayer cavity 24 of the side of heat exchange container 2 is outwards connected and is connected by upward pipeline
Be connected to heat exchanging fluid cooling device 4, the lower end of heat exchanging fluid interlayer cavity 24 of heat exchange container opposite side by downward pipeline to
Connect and be connected to heat exchanging fluid cooling device 4 outward.The connection of pipeline is so facilitated to install, while beneficial to the entirety of heat exchanging fluid
Circulate.
Wherein, the dust-collecting and heat exchanging pipeline 8 is to be in tilted layout, and the distinguished and admirable flowing inside direction diagonally downward and pipeline
Direction is consistent.So, can prevent it is distinguished and admirable in the dust that is mingled with piled up in dust-collecting and heat exchanging pipeline and cause blocking or reduction to remove
The distinguished and admirable flow velocity of dirt.
Wherein, the dust-collecting and heat exchanging pipeline 8 and fluid heat transfer pipeline 3 are along level arranged in rows and each right
Should be set to along the arrangement of short transverse uniform intervals as multiple rows of, the edge of fluid heat transfer pipeline 3 and the opposite direction of dust-collecting and heat exchanging pipeline 8
It is in tilted layout to be formed staggeredly, and it is intervening portion often to exclude dirt heat exchange pipeline and fluid heat transfer pipeline centre position.So, pipeline
Being in tilted layout can avoid knockout from being piled up in pipeline external surface, while the pipeline of alternating inclinations arrangement can also avoid guiding from falling
Sand is migrated toward same direction, therefore can better ensure that the uniformity that molding sand falls in heat exchange container, preferably to improve heat
Exchange efficiency.
Wherein, the dust-collecting and heat exchanging pipeline 8 and the outer surface of fluid heat transfer pipeline 3 are each arranged at intervals with aluminum fin-stock 27.
So can preferably improve the heat exchanger effectiveness with knockout.
Wherein, participate in Fig. 4, the aluminum fin-stock 27 of dust-collecting and heat exchanging pipeline and fluid heat transfer pipeline external surface each along pipeline before and after
Both sides outwardly convex is formed and is obliquely installed in the same direction with pipeline（Aluminum fin-stock angle of inclination inclines more than place pipeline during specific implementation
Angle is beneficial to molding sand landing）, often eradicate dirt heat exchange pipeline aluminum fin-stock correspondence interlock fluid heat transfer pipeline on have
Vertical corresponding aluminum fin-stock, and the vertical projection of the aluminum fin-stock lower half of each dust-collecting and heat exchanging pipeline and the corresponding layer fluid change
The vertical projection of the lower half of the aluminum fin-stock on hot channel has a part for coincidence.So aluminum fin-stock prolongs fore-and-aft direction extension
Setting can improve it and also improve heat exchanger effectiveness with the contact effect of the molding sand 28 that drops, while corresponding aluminium on adjacent pipeline
Fin is misplaced on vertical overlapping arrangement so that the molding sand slid on the aluminum fin-stock of each dust-collecting and heat exchanging pipeline can be dropped to down
Aluminum fin-stock surface on the corresponding fluid heat transfer pipeline in side, and then enable that molding sand forms class in a zigzag in heat exchange container inner chamber
The deflecting of left and right successively interlock whereabouts.So, residence time of the molding sand in heat exchange container is dramatically improved, also very big journey
Degree improves the contact heat-exchanging efficiency of molding sand and aluminum fin-stock so that molding sand heat exchange cooling effect is greatly improved.
So, when said system works, vanishing-die casting moulding-sand enters into jigging conveyer through turnover machine, in vibrating transportation
Heat and the dust being mingled with preliminarily are taken away under the distinguished and admirable suction that machine vibration and upper conveyor dust excluding hood are provided, is reached
Rough dusting and the effect of cooling.Then elevator of the molding sand after jigging conveyer from by pre- colod-application heat exchange container is entered into
First heat exchange container of preheating, on the curved screen of heat exchange container upper end, provides by vibration and heat exchange container dust excluding hood
Distinguished and admirable suction, heat and dust are taken away again；The special construction of curved screen is combined and vibrated and suction wind-force simultaneously, being capable of band
Ejector half sand more uniformly slides from curved screen；Molding sand in dropping process be in vacant state when by upward wind-force band
Heat is walked, during in aluminum fin-stock contact condition with dust-collecting and heat exchanging pipeline and fluid heat transfer pipeline and its two surface, is carried out
Cooling is realized in heat exchange, has been achieved in that the effect of MULTIPLE DYNAMIC cooling, and make use of the pipeline of dust pelletizing system as cooling source
Drastically increase heat exchanger effectiveness.The special construction of aluminum fin-stock sets the contact heat-exchanging effect also improved with molding sand simultaneously.
After molding sand drops out heat transfer space downwards, can also as desired by the control to switch valve, make its from sand-returning pipe return sand to
Elevator realizes that cycle heat exchange is processed, until be cooled to be adapted to after open sand export again and shake out, this sample loading mode is particularly suitable for interval
Sequencing batch type molding sand cooling treatment.When needing to realize continuous processing and treating capacity is larger causes the single heat exchange container cannot to meet heat exchange
During treatment, the sand-returning pipe and sand export of pre- colod-application heat exchanger can also be closed, open it and bypass out second heat exchange of sandpipe connection
Container（The heat exchange container of i.e. above-mentioned cooling）The heat exchange demand of continous way treatment is met by two heat exchange container cooperations.
Therefore the system has heat exchange efficiency high, molding sand treating capacity is big and the characteristics of can realizing various heat exchange modes.
Claims (10)
1. the hot sand processing method of a kind of evaporative pattern, including using allowing molding sand into heat exchange container and heat exchanging fluid pipeline carries out heat
The cooling step of substitute mode, it is characterised in that be additionally included in molding sand and before heat exchanging fluid pipeline carries out heat exchange, allow molding sand to pass through
A component for vibrational state is crossed, molding sand vibration is driven and dust excluding hood is set above the component by the component and aspirated, with
It is preliminary to take away heat and the step of molding sand is mingled with dust.
2. the hot sand processing method of evaporative pattern as claimed in claim 1, it is characterised in that be passed through gaseous state system in heat exchanging fluid pipeline
Cryogen, carries out Hot swapping by the way of air cooling.
3. the hot sand processing method of evaporative pattern as claimed in claim 1, it is characterised in that employ following processing system reality
Existing, the processing system includes turnover machine and heat-exchanger rig, and heat-exchanger rig includes a heat exchange container, and heat exchange container inside is set
There is the fluid heat transfer pipeline for heat exchange, heat exchanging fluid pipeline and the heat exchanging fluid cooling device being arranged at outside heat exchange container connect
Lead to and circulated for the heat exchanging fluid in it, turnover machine mould turnover direction side passes through molding sand conveying device and heat exchange container upper end
Sand inlet is connected, and heat exchange container lower end middle part is provided with band and shakes out the sand export of switch valve；Changing in the heat exchanging fluid pipeline
Hot fluid is gaseous refrigerant, and the heat exchanging fluid cooling device includes the compressor of air conditioner and A/C evaporator of series connection, air-conditioning
Compressor is used for gaseous refrigerant boil down to liquid, and A/C evaporator is used to be converted into the refrigerant of liquid the gas of low temperature
State；
Also include dust pelletizing system, dust pelletizing system includes being arranged at the dust excluding hood of dedusting position, and and removing of being connected with dust excluding hood
Dirt blower fan, dust pelletizing system also includes the cleaning shaft being communicated between dust excluding hood and dedusting fan, and cleaning shaft includes being arranged at
Dust-collecting and heat exchanging pipeline in heat exchange container inner chamber；
A vibration conveying mechanism into molding sand conveying device, vibrating transportation is correspondingly arranged on positioned at the side in turnover machine mould turnover direction
Machine is exported and the linking of heat exchange container upper end sand inlet, and dust excluding hood includes being correspondingly arranged at the conveyer dedusting above jigging conveyer
Cover.
4. the hot sand processing method of evaporative pattern as claimed in claim 3, it is characterised in that the heat-exchanger rig include one it is pre-
Colod-application heat exchange container and a heat exchange container for cooling, turnover machine mould turnover direction side and pre- colod-application heat exchange container upper end
Sand inlet is connected, and pre- colod-application heat exchange container lower end sand export side is additionally provided with outer end bypass obliquely and goes out sandpipe, bypasses
Go out the heat exchange container upper end sand inlet linking of sandpipe and cooling, the heat exchange container lower end sand export of cooling is used to shaking out to disappearing
Lost pattern casting boxcar；Heat exchanging fluid pipeline in pre- colod-application heat exchange container and the heat exchanging fluid pipe in the heat exchange container of cooling
Connected with the circulation of heat exchanging fluid cooling device again after road connection.
5. the hot sand processing method of evaporative pattern as claimed in claim 3, it is characterised in that heat exchange container in the heat-exchanger rig
Charging side is also vertically provided with an elevator side by side, and elevator lower end is provided with enters sand hopper for entering the elevator of sand, carries
Rise machine upper end sand export and send the sand inlet that sand cylinder is connected to heat exchange container upper end by what outer end was set obliquely.
6. the hot sand processing method of evaporative pattern as claimed in claim 3, it is characterised in that heat exchange container enters in inner chamber positioned at upper end
Sand mouthful lower section adjacent is horizontally arranged with the equal material screen of vibration along inner chamber, vibrate equal material screen lower section for be provided with fluid heat transfer pipeline and
The heat transfer space of dust-collecting and heat exchanging pipeline.
7. the hot sand processing method of evaporative pattern as claimed in claim 3, it is characterised in that heat exchange container inner chamber upper end is additionally provided with
Heat exchange container dust excluding hood, heat exchange container dust excluding hood upper end is connected in cleaning shaft by pipeline.
8. the hot sand processing method of evaporative pattern as claimed in claim 3, it is characterised in that each side setting of heat exchange container
There is a dedusting interlayer cavity, many spaced dedustings arranged side by side are provided with and communicated between two dedusting interlayer cavitys and are changed
Hot channel, two dedusting interlayer cavitys are each outwards communicated in cleaning shaft；The left and right sides of heat exchange container is also respectively set
There is a heat exchanging fluid interlayer cavity, many spaced streams arranged side by side are provided with and communicated between two heat exchanging fluid interlayer cavitys
Body heat exchange pipeline, two heat exchanging fluid interlayer cavitys each pass outwardly pipeline communication to heat exchanging fluid cooling device.
9. the hot sand processing method of evaporative pattern as claimed in claim 8, it is characterised in that the dust-collecting and heat exchanging pipeline is to incline cloth
Put, and direction diagonally downward is consistent with the distinguished and admirable flow direction inside pipeline.
10. the hot sand processing method of evaporative pattern as claimed in claim 9, it is characterised in that the dust-collecting and heat exchanging pipeline and fluid
Heat exchange pipeline outer surface is each arranged at intervals with aluminum fin-stock.
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| CN201710278460.4A CN106914585B (en) | 2017-04-25 | 2017-04-25 | The hot sand processing method of evaporative pattern |
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| CN201710278460.4A CN106914585B (en) | 2017-04-25 | 2017-04-25 | The hot sand processing method of evaporative pattern |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2570398A (en) * | 2017-12-08 | 2019-07-24 | Kerax Ltd | Temperature-controlled containers |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2778431Y (en) * | 2005-01-07 | 2006-05-10 | 鞍钢附属企业公司烧结安装公司 | Casting hot sand treating and sand box automatic conveying system |
| JP2011224599A (en) * | 2010-04-16 | 2011-11-10 | Sintokogio Ltd | Cooling device of casting sand, and recovery treatment facility of casting sand |
| CN102430708A (en) * | 2011-12-20 | 2012-05-02 | 新疆维吾尔自治区第三机床厂 | Moulding sand cooling dedusting tower as well as casting moulding sand processing device and method |
| CN203448603U (en) * | 2013-07-25 | 2014-02-26 | 华远善 | Vacuum evaporative pattern casting hot sand treatment device |
| CN203887149U (en) * | 2014-06-13 | 2014-10-22 | 南充同俊机械制造有限公司 | Vacuum casting hot sand treatment device |
-
2017
- 2017-04-25 CN CN201710278460.4A patent/CN106914585B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2778431Y (en) * | 2005-01-07 | 2006-05-10 | 鞍钢附属企业公司烧结安装公司 | Casting hot sand treating and sand box automatic conveying system |
| JP2011224599A (en) * | 2010-04-16 | 2011-11-10 | Sintokogio Ltd | Cooling device of casting sand, and recovery treatment facility of casting sand |
| CN102430708A (en) * | 2011-12-20 | 2012-05-02 | 新疆维吾尔自治区第三机床厂 | Moulding sand cooling dedusting tower as well as casting moulding sand processing device and method |
| CN203448603U (en) * | 2013-07-25 | 2014-02-26 | 华远善 | Vacuum evaporative pattern casting hot sand treatment device |
| CN203887149U (en) * | 2014-06-13 | 2014-10-22 | 南充同俊机械制造有限公司 | Vacuum casting hot sand treatment device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2570398A (en) * | 2017-12-08 | 2019-07-24 | Kerax Ltd | Temperature-controlled containers |
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Effective date of registration: 20210604 Address after: 400084 No. 2, Magnesium Bridge Road, Area A, Jianqiao Industrial Park, Dadukou District, Chongqing Patentee after: CHONGQING IRON & STEEL INSTITUTE Co.,Ltd. Address before: Three village 400080 Dadukou District of Chongqing weir building 1 No. 1 Patentee before: Chongqing Iron and Steel (Group) Co.,Ltd. |
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Address after: 400084 No. 2, Magnesium Bridge Road, Area A, Jianqiao Industrial Park, Dadukou District, Chongqing Patentee after: Baowu Teye Hangyan Technology Co.,Ltd. Address before: 400084 No. 2, Magnesium Bridge Road, Area A, Jianqiao Industrial Park, Dadukou District, Chongqing Patentee before: CHONGQING IRON & STEEL INSTITUTE Co.,Ltd. |