CN107218812A - Energy-saving heat preserving stove is used in casting - Google Patents
Energy-saving heat preserving stove is used in casting Download PDFInfo
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- CN107218812A CN107218812A CN201710470262.8A CN201710470262A CN107218812A CN 107218812 A CN107218812 A CN 107218812A CN 201710470262 A CN201710470262 A CN 201710470262A CN 107218812 A CN107218812 A CN 107218812A
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- Prior art keywords
- liquid
- heater
- pool
- liquid material
- deaeration
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Classifications
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- 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
- F27B19/00—Combinations of furnaces of kinds not covered by a single preceding main group
- F27B19/02—Combinations of furnaces of kinds not covered by a single preceding main group combined in one structure
-
- 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
- F27D19/00—Arrangements of controlling devices
-
- 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
- F27D3/14—Charging or discharging liquid or molten material
-
- 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
- F27D3/15—Tapping equipment; Equipment for removing or retaining slag
- F27D3/1545—Equipment for removing or retaining slag
-
- 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
- F27D7/00—Forming, maintaining, or circulating atmospheres in heating chambers
- F27D7/06—Forming or maintaining special atmospheres or vacuum within heating chambers
-
- 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
- F27D7/00—Forming, maintaining, or circulating atmospheres in heating chambers
- F27D7/06—Forming or maintaining special atmospheres or vacuum within heating chambers
- F27D2007/063—Special atmospheres, e.g. high pressure atmospheres
-
- 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
- F27D19/00—Arrangements of controlling devices
- F27D2019/0028—Regulation
- F27D2019/0034—Regulation through control of a heating quantity such as fuel, oxidant or intensity of current
- F27D2019/0037—Quantity of electric current
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Silicon Compounds (AREA)
Abstract
The invention provides a kind of casting energy-saving heat preserving stove, including flow to the liquid feeding groove set gradually, the first body of heater connected with liquid feeding groove according to liquid material and connected with the first body of heater take liquid pool, in addition to：Backflow pool, with taking liquid pool to connect, backflow pool is connected by overflow ducts with the first body of heater, and drawing liquid pump is provided with backflow pool, wherein, liquid material flows into the first body of heater from liquid feeding groove, first body of heater is used to heat liquid material, and the liquid material after heating flows into and takes liquid pool, in the rotation work of drawing liquid pump, then liquid material flows back to the first body of heater by taking liquid pool to be inhaled into backflow pool through overflow ducts.By technical scheme, the temperature difference for taking liquid pool and the liquid material in the first body of heater is reduced, the temperature stability and temperature-controllable of liquid material is improved, the impurity in liquid material is reduced, and then improves the quality of casting, energy consumption is reduced.
Description
Technical field
The present invention relates to Metal Melting processing technique field, in particular to a kind of casting energy-saving heat preserving stove.
Background technology
In correlation technique, used in aluminium alloy casting holding furnace generally by liquid feeding groove, body of heater and takes liquid pool to constitute, most of liquid material
By melting furnace melt after unified supply, add liquid material with transhipment bag, liquid material flows into body of heater from liquid feeding groove, after body of heater heating, stream
Enter to take liquid pool, there is following technological deficiency：
(1) liquid pool exposure is taken in atmosphere, and without heating devices heat, when taking the liquid material in liquid pool to be not used, stove
Internal high temperature liquid material, which is difficult to be supplemented in, to be come, and can be caused to take the liquid material in liquid pool gradually to cool, solidification is freezed, be reduced the matter of casting
Amount, normal the using of influence liquid material, if will be to taking the liquid material in liquid pool to reheat it is necessary to by manually taking in liquid pool
Low temperature liquid material is transported in liquid feeding groove, and not only labor intensity is big, dangerous high, also add energy consumption.
(2) liquid material temperature in body of heater is detected by the thermocouple set in body of heater, and then controls the power of combustor
Realize that liquid material is heated, on the one hand, thermocouple is arranged in body of heater, is influenceed by flame, flue gas and high temperature, fragile, maintenance
Change inconvenient, on the other hand, it is difficult to by this thermocouple come the accurate liquid material temperature controlled to take in liquid pool, be typically appropriate
Improve liquid material temperature in body of heater and carry out supplementary heating and take liquid material temperature in liquid pool, add the energy consumption of heating.
(3) take impurity and gas in liquid pool in liquid material excessive, influence the quality of casting.
The content of the invention
It is contemplated that at least solving one of technical problem present in prior art or correlation technique.
Therefore, it is an object of the present invention to provide a kind of casting energy-saving heat preserving stove.
To achieve these goals, technical scheme provides a kind of cast and uses energy-saving heat preserving stove, including according to
The liquid material flow direction liquid feeding groove set gradually, the first body of heater for being connected with liquid feeding groove and with the first body of heater is connected takes liquid pool, and also
Including：Backflow pool, with taking liquid pool to connect, backflow pool is connected by overflow ducts with the first body of heater, and the pool wall height of backflow pool is high
In the pool wall height for taking liquid pool, backflow pool is interior to be provided with drawing liquid pump, wherein, liquid material flows into the first body of heater, the first body of heater from liquid feeding groove
For being heated to liquid material, the liquid material after heating, which is flowed into, takes liquid pool, and in drawing liquid pump rotation work, liquid material is by taking liquid pool to be inhaled
Enter backflow pool, then flow back to the first body of heater through overflow ducts.
In the technical scheme, the liquid material taken in liquid pool connected with backflow pool is extracted by drawing liquid pump and makes backflow pool
After liquid level rise, the liquid material of backflow pool flows back to the first body of heater through overflow ducts and reheated, and takes liquid pool also because liquid level declines, from
First body of heater supplements new liquid material to taking in liquid pool, thus formed circulate, circulating-heating, on the one hand, reduce and take liquid pool
With the temperature difference of the liquid material in the first body of heater, the temperature stability and controllability of liquid material are improved, is reduced because taking liquid in liquid pool
The casting flaw problem such as a large amount of pin holes, deficient casting, shrinkage porosite, improves the quality of casting caused by the reduction of material temperature degree, on the other hand,
Reduce and be manually carried in liquid feeding groove again by the generation of the first body of heater heating state because taking liquid material temperature reduction in liquid pool,
Labor intensity and energy consumption are reduced, manpower and resource has been saved.
Drawing liquid is rotated by drawing liquid pump in backflow pool to work, the liquid material that part is substituted in production process is used, can be by
Liquid material is inhaled into backflow pool by being still in take in liquid pool, and the liquid material in liquid pool is taken by actively lasting reduction, and realization takes liquid
Self supplement of liquid material and heating in pond, raising realize the feasibility that liquid material circulates backflow.
In addition, the liquid level of backflow pool is higher than the liquid level of the first body of heater, it can so lead under gravity
Cross overflow ducts and overflow back the first body of heater.
Specifically, liquid material is added by liquid feeding groove by transhipment bag, liquid feeding groove is provided with corresponding liquid level scale, liquid feeding
The liquid level of groove is the liquid level of the first body of heater, can be judged by reading the liquid level of liquid feeding groove in the first body of heater
The amount of liquid material, liquid material flows into the first body of heater from liquid feeding groove, and the first body of heater heated and be incubated to liquid material, the liquid material after heating from
The bottom of first body of heater flows into and takes liquid pool, takes the liquid material in liquid pool under the rotation attraction of drawing liquid pump, to be inhaled into backflow pool
Backflow pool, when the liquid level of backflow pool is higher than the liquid level of the first body of heater, liquid material overflows back first by overflow ducts
Body of heater, takes the liquid material liquid level in liquid pool to decline, and the liquid material liquid level in the first body of heater is higher than the liquid material liquid level taken in liquid pool, the first stove
Internal liquid material is automatically replenished under gravity to be taken in liquid pool, and original liquid material taken in liquid pool is supplemented and heat is passed
Pass, realize the heating again of the liquid material taken in liquid pool so that take the liquid material temperature stabilization in liquid pool, maintain casting technique requirement
Within the temperature range of, the quality of casting is not only increased, and reduce the energy consumption of heating and insulation.
In any of the above-described technical scheme, it is preferable that take and temperature control sensor is provided with liquid pool, to control adding for the first body of heater
Thermal power.
In the technical scheme, by setting temperature control sensor in liquid pool taking, to control the heating power of the first body of heater, make
The temperature control in liquid pool must be taken more accurate, preferably meet casting technique requirement, and to take the temperature of liquid material in liquid pool
The temperature control standard heated as the first body of heater, due to taking liquid pool and liquid material temperature difference in the first body of heater small, Ke Yi
On the premise of meeting casting technique requirement, the energy consumption of guarantor's mild heat of liquid material in the first body of heater of reduction.
When liquid material is aluminium liquid, takes the temperature in liquid pool to be maintained at 680 DEG C~720 DEG C, taken when temperature control sensor is detected
When temperature in liquid pool is less than 680 DEG C, control increases the heating power of the first body of heater, is taken when temperature control sensor is detected in liquid pool
Temperature be higher than 720 DEG C, control reduce the first body of heater heating power or close the first body of heater heating operation.
In addition, setting temperature control sensor in liquid pool taking, temperature control sensing is set in the first body of heater relative to of the prior art
Device, temperature control sensor is not also influenceed, no without fire-cureing for body of heater flame and flue gas is subjected to by cleaning furnace body wall waste residue operation
It is fragile, the service life of temperature control sensor is improved, and maintenance is changed and more facilitated, temperature control sensor can also use temperature control heat
Galvanic couple is substituted.
In the above-mentioned technical solutions, it is preferable that also include：Deaeration, is located at the first body of heater and takes between liquid pool, deaeration
Connected with the bottom of the first body of heater, deaeration is provided with degassing rotor in deaeration with taking liquid pool to connect, wherein, liquid material is from first
Body of heater flows into deaeration, when inert gas and rotary work are passed through at the center of degassing rotor, and deaeration is used to carry out liquid material
Degasification removes the gred, and the liquid material after degasification slagging-off, which is flowed into, takes liquid pool.
In the technical scheme, removed by being located at the first body of heater and taking the deaeration between liquid pool to carry out degasification to liquid material
Slag, can effectively remove the impurity such as hydrogen and oxide slag inclusion in liquid material, reduce casting flaw, improve the quality of casting.
, can be by inertia by being passed through inert gas (nitrogen of such as high-purity) and rotary work at the center of degassing rotor
Gas breaking makes disperse bubble be dispersed in liquid material into substantial amounts of disperse bubble, bubble in liquid material by partial pressure difference and
Adsorption principle, absorbs the hydrogen in liquid material, the impurity such as adsorption and oxidation slag inclusion, and rises with bubble and be carried over liquid material surface,
The degree of purity of liquid material is improved, and then improves the quality of casting.
In any of the above-described technical scheme, it is preferable that degassing rotor is graphite rotator or silicon nitride rotor.
In the technical scheme, using graphite rotator or silicon nitride rotor as degassing rotor, reduce because degassing rotor by
Caused by high temperature influence deformation the occurrence of degassing effect difference and increase impurity, graphite rotator is by high-purity high-density graphite
It is made, resistance to elevated temperatures is good, is unlikely to deform, the stable chemical performance of graphite or silicon nitride material, will not be especially lived with liquid material
Jump metal such as aluminium liquid chemically reacts, and will not pollute and destroy the chemical composition of liquid material, resistance to elevated temperatures is good, and can improve makes
With the life-span, reduce maintenance and change.
In any of the above-described technical scheme, it is preferable that also include：Pond is stood, deaeration is located at and takes between liquid pool, stand
Pond is connected with deaeration by first passage, stands pond with taking liquid pool to be connected by second channel, wherein, liquid material is from deaeration stream
Enter and stand pond, standing pond is used to liquid material is stood and removed the gred, and the liquid material after slagging-off flows into and takes liquid pool.
In the technical scheme, because liquid material also has a certain amount of Slag inclusion in itself, the degassing rotor in deaeration is always
In rotation degasification slagging-off so that the Slag inclusion in deaeration in liquid material is constantly in suspended motion state, in deaeration with taking liquid
Standing pond is set between pond, liquid material is first calmed down into before taking liquid pool in standing pond so that the first body of heater and deaeration
The impurity such as the oxide slag inclusion and scum silica frost of interior liquid material can be separated further, purify liquid material, reduce the impurity for entering and taking in liquid pool,
Improve the internal soundness of casting, improve the performance of product.
Specifically, the liquid material after degasification flows into from deaeration and stands pond, in the case where standing the standing effect in pond, in partial impurities
Floating, partial impurities are sunk, and are periodically salvaged the impurity that the impurity floated and cleaning are sunk, can be improved the degree of purification of liquid material.
In any of the above-described technical scheme, it is preferable that first passage and second channel stagger setting.
In the technical scheme, staggered setting by first passage and second channel, extend liquid material from deaeration to taking
The distance of liquid pool, adds time of repose, and the liquid material reduced in deaeration takes liquid pool without standing to flow directly into, and further subtracts
Lack into the impurity taken in liquid pool, improved the internal soundness of casting, improve the performance of product.
In any of the above-described technical scheme, it is preferable that the first passage is communicated in the middle and lower part in the standing pond, second
Passage is communicated in the middle and upper part for standing pond.
In the technical scheme, required due to technologic, slag-cleaning agent periodically put into deaeration and carry out oxidation folder
Slag is cleared up, and the mixture scum silica frost that can produce more oxide slag inclusion thing and slag-cleaning agent physics and chemical reaction formation swims in liquid level
On, a part of scum silica frost can be rolled into below liquid level by graphite rotator when rotating, so being connected and deaeration by first passage
Middle and lower part, reduces scum silica frost and enters standing pond, the middle and upper part for standing pond is communicated in by second channel, you can prevent scum silica frost from flowing into and takes
Liquid pool, can to greatest extent reduce and sink to the impurity for standing pond bottom as liquid material inflow is taken in liquid pool, further reduce again
Into the impurity taken in liquid pool, the internal soundness of casting is improved, the performance of product is improved.
In any of the above-described technical scheme, it is preferable that also include：Second body of heater, is located between the first body of heater and liquid feeding groove,
The bottom of second body of heater is connected with the first body of heater by footpath circulation road, and the second body of heater is connected with liquid feeding groove, wherein, the second body of heater
Bottom position is higher than the highest liquid level position of the first body of heater, and liquid material flows into the second body of heater from liquid feeding groove, and essence is sprayed in inert gas
When refining agent, the second body of heater is used to carry out liquid material preparatory gas freeing slagging-off, and the liquid material after preparatory gas freeing slagging-off flows into the first body of heater.
In the technical scheme, by setting the second body of heater between the first body of heater and liquid feeding groove, realize to the preliminary of liquid material
Degasification removes the gred, and can further reduce the impurity in the liquid material of actual use, and continues to supplement liquid material into the first body of heater, keeps
First body of heater, deaeration, the liquid level for taking liquid pool etc., it is convenient disposable from the liquid material for taking liquid pool to dip rated capacity, improve casting
The performance for the product made.
Specifically, liquid material flows into the second body of heater from liquid feeding groove, when the liquid material in the second body of heater reaches certain liquid level, uses
Inert gas sprays refining agent into the second body of heater, carries out preliminary degasification and removes Slag treatment, improves the cleanliness factor of liquid material, Ran Houcong
Second bottom of furnace body continues to flow into the first body of heater by footpath circulation road path stream, keeps the liquid material in the circulation road of footpath non-condensing, and
Continue to supplement liquid material into the first body of heater, keep the liquid material in the first body of heater to be constantly in more sufficient state, can also be by liquid
Scum silica frost in material etc. is trapped in the second body of heater, improves the cleanliness factor of liquid material in the first body of heater, and then raising takes liquid material in liquid pool
Cleanliness factor, so as to improve the performance of the product of casting.
In any of the above-described technical scheme, it is preferable that take the bore of liquid pool to be more than the bore of backflow pool, take the bore of liquid pool
More than the bore for standing pond.
In the technical scheme, the bore of liquid pool is taken to be more than the bore of backflow pool so that the decimated next liquid material of drawing liquid pump
Full of backflow pool and the first body of heater can be overflowed back soon, reduce in the residence time of backflow pool, reduce thermal loss, take liquid
The bore in pond is more than the bore for standing pond, and purpose is stood simultaneously reaching, can effectively reduce liquid material when standing the stop in pond
Between, reduce thermal loss.
In any of the above-described technical scheme, it is preferable that drawing liquid pump is graphite impeller pump or silicon nitride vane pump.
In the technical scheme, drawing liquid pump is graphite impeller pump or silicon nitride vane pump, the change of graphite or silicon nitride material
Learn performance stable, will not chemically react with liquid material, especially Active Metals (such as aluminium liquid), will not pollute and destroy liquid material
Chemical composition, resistance to elevated temperatures is good, can improve service life, reduces maintenance and changes.
The additional aspect and advantage of the present invention will be provided in following description section, will partly be become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become from description of the accompanying drawings below to embodiment is combined
Substantially and be readily appreciated that, wherein：
Fig. 1 shows the structural representation of casting energy-saving heat preserving stove according to an embodiment of the invention,
Wherein, the corresponding relation in Fig. 1 between reference and part is：
102 first bodies of heater, 104 liquid feeding grooves, 106 take liquid pool, 108 backflow pools, 110 overflow ducts, 112 deaerations, and 114 is quiet
Put pond, 116 first passages, 118 second channels, 120 second bodies of heater, 122 footpath circulation roads.
Embodiment
It is below in conjunction with the accompanying drawings and specific real in order to be more clearly understood that the above objects, features and advantages of the present invention
Mode is applied the present invention is further described in detail.It should be noted that in the case where not conflicting, the implementation of the application
Feature in example and embodiment can be mutually combined.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
Implemented with being different from other modes described here using other, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
Casting according to an embodiment of the invention is specifically described with energy-saving heat preserving stove with reference to Fig. 1.
As shown in figure 1, casting energy-saving heat preserving stove, including set successively according to liquid material flow direction according to an embodiment of the invention
The liquid feeding groove 104 put, the first body of heater 102 connected with liquid feeding groove 104 and with the first body of heater 102 is connected takes liquid pool 106, also
Including：Backflow pool 108, with taking liquid pool 106 to connect, backflow pool 108 is connected by overflow ducts 110 with the first body of heater 102, backflow
Higher than the pool wall height for taking liquid pool 106, drawing liquid pump is highly provided with backflow pool 108 for the pool wall in pond 108, wherein, liquid material is from liquid feeding
Groove 104 flows into the first body of heater 102, and the first body of heater 102 is used to heat liquid material, and the liquid material after heating flows into and takes liquid pool 106,
In drawing liquid pump rotation work, then liquid material flows back to the first stove by taking liquid pool 106 to be inhaled into backflow pool 108 through overflow ducts 110
Body 102.
In this embodiment, the liquid material taken in liquid pool 106 connected with backflow pool 108 is extracted by drawing liquid pump and makes backflow
After the liquid level rise in pond 108, the liquid material of backflow pool 108 flows back to the first body of heater 102 through overflow ducts 110 and reheated, and takes liquid pool
106, also because liquid level declines, supplement new liquid material to taking in liquid pool 106 from the first body of heater 102, circulate, follow so as to be formed
Ring is heated, on the one hand, reduce the temperature difference for taking the liquid material in the body of heater 102 of liquid pool 106 and first, the temperature for improving liquid material is steady
Qualitative and controllability, is reduced because taking the casting such as a large amount of pin holes, deficient casting, shrinkage porosite caused by the reduction of liquid material temperature in liquid pool 106
Defect problem, improves the quality of casting, on the other hand, reduces and is manually carried because taking liquid material temperature reduction in liquid pool 106
Again by the generation of the heating state of the first body of heater 102 in liquid feeding groove 104, labor intensity and energy consumption are reduced, manpower has been saved
And resource.
Drawing liquid is rotated by drawing liquid pump in backflow pool 108 to work, the liquid material that part is substituted in production process is used, can be with
Liquid material is inhaled into backflow pool 108 by being still in take in liquid pool 106, the liquid in liquid pool 106 is taken by actively lasting reduction
Material, realizes and takes self supplement of liquid material and heating in liquid pool 106, raising realizes the feasibility that liquid material circulates backflow.
In addition, the liquid level of backflow pool 108 be higher than the first body of heater 102 liquid level, so can gravity work
By overflow ducts 110 the first body of heater 102 is overflowed back with lower.
Specifically, liquid material is added by liquid feeding groove 104 by transhipment bag, liquid feeding groove 104 is carved provided with corresponding liquid level
Degree, the first body of heater 102, the liquid level of liquid feeding groove 104 is the liquid level of the first body of heater 102, can be by reading liquid feeding groove
104 liquid level judges the amount of liquid material in the first body of heater 102, and liquid material flows into the first body of heater 102, first from liquid feeding groove 104
Body of heater 102 is heated and is incubated to liquid material, and the liquid material after heating flows into from the bottom of the first body of heater 102 and takes liquid pool 106, takes liquid
Liquid material in pond 106 under the rotation attraction of drawing liquid pump, is inhaled into backflow pool 108, in backflow pool 108 in backflow pool 108
When liquid level is higher than the liquid level of the first body of heater 102, liquid material overflows back the first body of heater 102 by overflow ducts 110, takes liquid
Liquid material liquid level in pond 106 declines, and the liquid material liquid level in the first body of heater 102 is higher than the liquid material liquid level taken in liquid pool 106, the first stove
Liquid material in body 102 is automatically replenished under gravity to be taken in liquid pool 106, and original liquid material taken in liquid pool 106 is mended
Fill and heat transfer, realize the heating again of the liquid material taken in liquid pool 106 so that take the liquid material temperature stabilization in liquid pool 106, tie up
Hold within the temperature range of casting technique requirement, not only increase the quality of casting, and reduce the energy consumption of heating and insulation.
In any of the above-described embodiment, it is preferable that take and temperature control sensor is provided with liquid pool 106, to control the first body of heater 102
Heating power.
In this embodiment, by setting temperature control sensor taking in liquid pool 106, to control the heating work(of the first body of heater 102
Rate so that take the temperature control in liquid pool 106 more accurate, preferably meets casting technique requirement, and to take in liquid pool 106
The temperature control standard that the temperature of liquid material is heated as the first body of heater 102, due to taking the liquid in the body of heater 102 of liquid pool 106 and first
Expect that temperature difference is small, can be on the premise of casting technique requirement be met, guarantor's mild heat of liquid material in the first body of heater 102 of reduction
Energy consumption.
When liquid material is aluminium liquid, the temperature in liquid pool 106 is taken to be maintained at 680 DEG C~720 DEG C, when temperature control sensor is detected
When taking the temperature in liquid pool 106 less than 680 DEG C, control increases the heating power of the first body of heater 102, when temperature control sensor is detected
The temperature in liquid pool 106 is taken to be higher than 720 DEG C, control reduces the heating power of the first body of heater 102 or closed adding for the first body of heater 102
Heat operation.
In addition, setting temperature control sensor taking in liquid pool 106, temperature is set in the first body of heater 102 relative to of the prior art
Sensor is controlled, temperature control sensor is without fire-cureing for body of heater flame and flue gas is subjected to, also not by cleaning furnace body wall waste residue operation
Influence, is hardly damaged, and improves the service life of temperature control sensor, and maintenance is changed and more facilitated, and temperature control sensor can also
Substituted with temperature control thermocouple.
In the above embodiment, it is preferable that also including：Deaeration 112, be located at the first body of heater 102 with take liquid pool 106 it
Between, deaeration 112 is connected with the bottom of the first body of heater 102, and deaeration 112 is provided with taking liquid pool 106 to connect in deaeration 112
Degassing rotor, wherein, liquid material flows into deaeration 112 from the first body of heater 102, is passed through inert gas at the center of degassing rotor and revolves
Change a job when making, deaeration 112 is used to carry out liquid material degasification slagging-off, and the liquid material after degasification slagging-off, which is flowed into, takes liquid pool 106.
In this embodiment, by being located at the first body of heater 102 and taking the deaeration 112 between liquid pool 106 to carry out liquid material
Degasification removes the gred, and can effectively remove the impurity such as hydrogen and oxide slag inclusion in liquid material, reduces casting flaw, improves the quality of casting.
, can be by inertia by being passed through inert gas (nitrogen of such as high-purity) and rotary work at the center of degassing rotor
Gas breaking makes disperse bubble be dispersed in liquid material into substantial amounts of disperse bubble, bubble in liquid material by partial pressure difference and
Adsorption principle, absorbs the hydrogen in liquid material, the impurity such as adsorption and oxidation slag inclusion, and rises with bubble and be carried over liquid material surface,
The degree of purity of liquid material is improved, and then improves the quality of casting.
In any of the above-described embodiment, it is preferable that degassing rotor is graphite rotator or silicon nitride rotor.
In this embodiment, graphite rotator or silicon nitride rotor are reduced because degassing rotor is by height as degassing rotor
Caused by temperature influence deformation the occurrence of degassing effect difference and increase impurity, graphite rotator is by high-purity high-density graphite system
Into resistance to elevated temperatures is good, is unlikely to deform, the stable chemical performance of graphite or silicon nitride material, will not be especially active with liquid material
Metal such as aluminium liquid chemically reacts, and will not pollute and destroy the chemical composition of liquid material, and resistance to elevated temperatures is good, can improve and use
In the life-span, reduce maintenance and change.
In any of the above-described embodiment, it is preferable that also include：Stand pond 114, be located at deaeration 112 and take liquid pool 106 it
Between, stand pond 114 and connected with deaeration 112 by first passage 116, stand pond 114 and take liquid pool 106 by second channel
118 connections, wherein, liquid material flows into from deaeration 112 and stands pond 114, and standing pond 114 is used to liquid material is stood and removed the gred,
Liquid material after slagging-off, which is flowed into, takes liquid pool 106.
In this embodiment, because liquid material also has a certain amount of Slag inclusion in itself, the degassing rotor in deaeration 112 is always
In rotation degasification slagging-off so that the Slag inclusion in deaeration 112 in liquid material is constantly in suspended motion state, in deaeration 112
Standing pond 114 is set between liquid pool 106 with taking, liquid material is first calmed down standing in pond 114 entering to take before liquid pool 106, makes
Obtaining the impurity such as the first body of heater 102 and the oxide slag inclusion and scum silica frost of the liquid material in deaeration 112 can further separate, scavenging solution
Material, reduces the impurity for entering and taking in liquid pool 106, improves the internal soundness of casting, improves the performance of product.
Specifically, the liquid material after degasification flows into from deaeration 112 and stands pond 114, in the case where standing the standing effect in pond 114,
Partial impurities are floated, and partial impurities are sunk, and are periodically salvaged the impurity that the impurity floated and cleaning are sunk, can be improved the net of liquid material
Change degree.
In any of the above-described embodiment, it is preferable that first passage 116 and second channel 118 stagger setting.
In this embodiment, staggered setting by first passage 116 and second channel 118, extend liquid material from deaeration
112, to the distance for taking liquid pool 106, add time of repose, and the liquid material reduced in deaeration 112 takes without standing to flow directly into
Liquid pool 106, further reduces into the impurity taken in liquid pool 106, improves the internal soundness of casting, improve the property of product
Energy.
In any of the above-described embodiment, it is preferable that first passage 116 is communicated in the middle and lower part for standing pond 114, second channel
118 are communicated in the middle and upper part for standing pond 114.
In this embodiment, required due to technologic, slag-cleaning agent periodically put into deaeration 112 and carry out oxidation folder
Slag is cleared up, and the mixture scum silica frost that can produce more oxide slag inclusion thing and slag-cleaning agent physics and chemical reaction formation swims in liquid level
On, a part of scum silica frost can be rolled into below liquid level by graphite rotator when rotating, so being connected by first passage 116 and deaeration
112 middle and lower part, reduces scum silica frost and enters standing pond 114, the middle and upper part for standing pond 114 is communicated in by second channel 118, you can
Prevent scum silica frost from flowing into and take liquid pool 106, can to greatest extent reduce again and sink to the impurity for standing the bottom of pond 114 as liquid material inflow takes
In liquid pool 106, further reduce into the impurity taken in liquid pool 106, improve the internal soundness of casting, improve product
Performance.
In any of the above-described embodiment, it is preferable that also include：Second body of heater 120, is located at the first body of heater 102 and liquid feeding groove
Between 104, the bottom of the second body of heater 120 is connected with the first body of heater 102 by footpath circulation road 122, the second body of heater 120 and liquid feeding groove
104 connections, wherein, the bottom position of the second body of heater 120 is higher than the highest liquid level position of the first body of heater 102, and liquid material is from liquid feeding groove
104 flow into the second body of heater 120, when inert gas sprays refining agent, and the second body of heater 120 is used to remove liquid material progress preparatory gas freeing
Slag, the liquid material after preparatory gas freeing slagging-off flows into the first body of heater 102.
In this embodiment, by setting the second body of heater 120 between the first body of heater 102 and liquid feeding groove 104, realize to liquid material
Preparatory gas freeing slagging-off, can further reduce actual use liquid material in impurity, and continue into the first body of heater 102 supplement
Liquid material, keeps the first body of heater 102, deaeration 112, the liquid level for taking liquid pool 106 etc., convenient disposable from taking liquid pool 106 to scoop
The liquid material of rated capacity is taken, the performance of the product of casting is improved.
Specifically, liquid material from liquid feeding groove 104 flow into the second body of heater 120, when the liquid material in the second body of heater 120 reach it is certain
During liquid level, refining agent is sprayed into the second body of heater 120 with inert gas, preliminary degasification is carried out and removes Slag treatment, improve liquid material
Cleanliness factor, then continues to flow into the first body of heater 102 from the bottom of the second body of heater 120 by the small runoff of footpath circulation road 122, keeps runoff
Liquid material in passage 122 is non-condensing, and continues to supplement liquid material into the first body of heater 102, keeps the liquid material one in the first body of heater 102
More sufficient state is directly in, scum silica frost in liquid material etc. can also be trapped in the second body of heater 120, the first body of heater 102 is improved
The cleanliness factor of interior liquid material, and then the cleanliness factor for taking liquid material in liquid pool 106 is improved, so as to improve the performance of the product of casting.
In any of the above-described embodiment, it is preferable that take the bore of liquid pool 106 to be more than the bore of backflow pool 108, take liquid pool
106 bore is more than the bore for standing pond 114.
In this embodiment, take liquid pool 106 bore be more than backflow pool 108 bore so that drawing liquid pump it is decimated come
Liquid material full of backflow pool 108 and can overflow back the first body of heater 102 soon, reduce in the residence time of backflow pool 108, reduce
Thermal loss, takes the bore of liquid pool 106 to be more than the bore for standing pond 114, while standing purpose is reached, can effectively reduce
Liquid material is standing the residence time in pond 114, reduces thermal loss.
In any of the above-described embodiment, it is preferable that drawing liquid pump is graphite impeller pump or silicon nitride vane pump.
In this embodiment, drawing liquid pump is the chemistry of graphite impeller pump or silicon nitride vane pump, graphite or silicon nitride material
Performance is stable, will not chemically react with liquid material, especially Active Metals (such as aluminium liquid), will not pollute and destroy liquid material
Chemical composition, resistance to elevated temperatures is good, can improve service life, reduces maintenance and changes.
Embodiment
As shown in figure 1, adding after liquid material in the liquid feeding groove 104, liquid material flows into the second body of heater 120 from liquid feeding groove 104, the
Liquid material in two bodies of heater 120 is reached after certain liquid level, and refining agent is loaded in duster and inert gas sprinkling refining is connected
Agent, preparatory gas freeing slag removal and purification processing is carried out to liquid material, the liquid material after the processing of preparatory gas freeing slag removal and purification is from the bottom of the second body of heater 120
Portion is heated by lasting the first body of heater of inflow 102 of footpath circulation road path stream in the first body of heater 102, and the liquid material after heating is from
One body of heater 102 flows into deaeration 112, is passed through inert gas by the degassing rotor in deaeration 112, further liquid material is entered
Row degasification removes the gred, and the liquid material after degasification slagging-off is flowed into from deaeration 112 by first passage 116 stands pond 114, is standing pond
Stood in 114 so that the impurity such as scum silica frost in liquid material can be separated further, the liquid material stood in pond 114 passes through second channel
118 inflows take liquid pool 106, take a liquid material part for liquid pool 106 to be drawn cast article, another part is then in backflow pool 108
Drawing liquid pump is rotated to be inhaled into backflow pool 108 under the suction produced, and the liquid in backflow pool 108 passes through overflow ducts 110
Flow back in the first body of heater 102, reheat, the first body of heater 102 for making, deaeration 112, stand pond 114, take liquid pool 106 and return
Stream pond 108 liquid material form one circulate, hydronic passage, to take the liquid material in liquid pool 106 and first
The temperature difference of liquid material in body of heater 102 less, reduces the energy consumption of heating, improves the stability for taking liquid material temperature in liquid pool 106.
Technical scheme is described in detail above in association with accompanying drawing, the present invention proposes a kind of casting energy-saving heat preserving
Stove, passes through the backflow pool with taking liquid pool to connect so that liquid material flows back to the first body of heater by overflow ducts, reheats, and reduces
The temperature difference of liquid pool and the liquid material in the first body of heater is taken, the temperature stability and controllability of liquid material is improved, reduces liquid material
Impurity, and then the quality of casting is improved, reduce energy consumption.
In the present invention, term " first ", " second ", " the 3rd " are only used for the purpose described, and it is not intended that indicating
Or imply relative importance；Term " multiple " then refers to two or more, unless otherwise clear and definite restriction.Term " installation ",
The term such as " connected ", " connection ", " fixation " all should be interpreted broadly, for example, " connection " can be fixedly connected or can
Dismounting connection, or be integrally connected；" connected " can be joined directly together, and can also be indirectly connected to by intermediary.For this
For the those of ordinary skill in field, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In description of the invention, it is to be understood that the instruction such as term " on ", " under ", "left", "right", "front", "rear"
Orientation or position relationship are, based on orientation shown in the drawings or position relationship, to be for only for ease of the description present invention and simplification is retouched
State, rather than indicate or imply that the device or unit of meaning there must be specific direction, with specific azimuth configuration and operation,
It is thus impossible to be interpreted as limitation of the present invention.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean that combining the embodiment or specific features, structure, material or the feature of example description is contained at least one reality of the invention
Apply in example or example.In this manual, identical embodiment or reality are not necessarily referring to the schematic representation of above-mentioned term
Example.Moreover, description specific features, structure, material or feature can in any one or more embodiments or example with
Suitable mode is combined.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (10)
1. energy-saving heat preserving stove use in one kind casting, including set gradually according to liquid material flow direction liquid feeding groove, connect with the liquid feeding groove
The first body of heater and with first body of heater is connected takes liquid pool, it is characterised in that also include：
Backflow pool, takes liquid pool to connect with described, and the backflow pool is connected by overflow ducts with first body of heater, the backflow
The pool wall in pond highly, is provided with drawing liquid pump highly higher than the pool wall for taking liquid pool in the backflow pool,
Wherein, liquid material flows into first body of heater from the liquid feeding groove, and first body of heater is used to heat the liquid material,
The liquid material after heating takes liquid pool described in flowing into, and in the drawing liquid pump rotation work, the liquid material takes liquid pool quilt by described
The backflow pool is sucked, then first body of heater is flowed back to through the overflow ducts.
2. energy-saving heat preserving stove is used in casting according to claim 1, it is characterised in that
Described take is provided with temperature control sensor in liquid pool, to control the heating power of first body of heater.
3. energy-saving heat preserving stove is used in casting according to claim 1, it is characterised in that also included：
Deaeration, be located at first body of heater and it is described take between liquid pool, the deaeration and the bottom of first body of heater connect
Logical, the deaeration takes liquid pool to connect with described, and degassing rotor is provided with the deaeration,
Wherein, the liquid material flows into the deaeration from first body of heater, and indifferent gas is passed through at the center of the degassing rotor
When body and rotary work, the deaeration is used to carry out the liquid material degasification slagging-off, and the liquid material after degasification slagging-off is flowed into
It is described to take liquid pool.
4. energy-saving heat preserving stove is used in casting according to claim 3, it is characterised in that
The degassing rotor is graphite rotator or silicon nitride rotor.
5. energy-saving heat preserving stove is used in casting according to claim 3, it is characterised in that also included：
Stand pond, be located at the deaeration and it is described take between liquid pool, the standing pond passes through first passage with the deaeration
Connection, the standing pond takes liquid pool to be connected by second channel with described,
Wherein, the liquid material flows into the standing pond from the deaeration, and the standing pond is used to stand the liquid material
And remove the gred, take liquid pool described in the liquid material inflow after slagging-off.
6. energy-saving heat preserving stove is used in casting according to claim 5, it is characterised in that
The first passage and the second channel stagger setting.
7. energy-saving heat preserving stove is used in casting according to claim 6, it is characterised in that
The first passage is communicated in the middle and lower part in the standing pond, on the second channel is communicated in the standing pond
Portion.
8. energy-saving heat preserving stove is used in casting according to claim 1, it is characterised in that also included：
Second body of heater, is located between first body of heater and the liquid feeding groove, the bottom of second body of heater and first stove
Body is connected by footpath circulation road, and second body of heater is connected with the liquid feeding groove, wherein, the bottom position of second body of heater is high
In the highest liquid level position of first body of heater, the liquid material flows into second body of heater from the liquid feeding groove, in inert gas
When spraying refining agent, second body of heater is used to carry out the liquid material preparatory gas freeing slagging-off, described after preparatory gas freeing slagging-off
Liquid material flows into first body of heater.
9. energy-saving heat preserving stove is used in casting according to claim 5, it is characterised in that
The bore for taking the bore of liquid pool to be more than the backflow pool, the mouth for taking the bore of liquid pool to be more than the standing pond
Footpath.
10. energy-saving heat preserving stove is used in casting according to claim 1, it is characterised in that
The drawing liquid pump is graphite impeller pump or silicon nitride vane pump.
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| CN201710470262.8A CN107218812B (en) | 2017-06-20 | 2017-06-20 | Energy-saving heat preservation furnace for casting |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710470262.8A CN107218812B (en) | 2017-06-20 | 2017-06-20 | Energy-saving heat preservation furnace for casting |
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| CN107218812B CN107218812B (en) | 2023-05-23 |
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| CN203454749U (en) * | 2013-09-13 | 2014-02-26 | 苏州达泰尔机械有限公司 | Loop heating system of aluminum alloy melting furnace |
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| CN204727937U (en) * | 2014-11-18 | 2015-10-28 | 林卫新 | Molten aluminium stove |
| CN207066124U (en) * | 2017-06-20 | 2018-03-02 | 浙江今飞凯达轮毂股份有限公司 | Energy-saving heat preserving stove is used in casting |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2268910Y (en) * | 1995-10-13 | 1997-11-26 | 元富铝业股份有限公司 | Continuous aluminum melting and temperature holding furnace using gas fuel |
| EP0843020A1 (en) * | 1996-11-13 | 1998-05-20 | DANIELI & C. OFFICINE MECCANICHE S.p.A. | Double hearth electric arc furnace for continuous melting |
| CN201264075Y (en) * | 2008-07-31 | 2009-07-01 | 比亚迪股份有限公司 | Continuous casting metal melting furnace |
| CN101915501A (en) * | 2010-08-12 | 2010-12-15 | 浙江浩大工业炉有限公司 | Aluminum scrap recovery furnace |
| CN203454749U (en) * | 2013-09-13 | 2014-02-26 | 苏州达泰尔机械有限公司 | Loop heating system of aluminum alloy melting furnace |
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| CN107218812B (en) | 2023-05-23 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20181008 Address after: 321016 No. 800, Xian Hua South Street, Jinhua Industrial Park, Zhejiang. Applicant after: ZHEJIANG JINFEI KAIDA WHEEL Co.,Ltd. Applicant after: YUNNAN FUYUAN JINFEI WHEEL MANUFACTURING Co.,Ltd. Address before: 321016 No. 800, Xian Hua South Street, Jinhua Industrial Park, Zhejiang. Applicant before: ZHEJIANG JINFEI KAIDA WHEEL Co.,Ltd. |
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