CN104776723B - A kind of environmental protection, the energy-saving production method of non-ferrous metals casting melt - Google Patents
A kind of environmental protection, the energy-saving production method of non-ferrous metals casting melt Download PDFInfo
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- CN104776723B CN104776723B CN201510125534.1A CN201510125534A CN104776723B CN 104776723 B CN104776723 B CN 104776723B CN 201510125534 A CN201510125534 A CN 201510125534A CN 104776723 B CN104776723 B CN 104776723B
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Abstract
The present invention provides a kind of environmental protection, the energy-saving production method of non-ferrous metals casting melt, and a kind of environmental protection, the energy-saving production method of non-ferrous metals casting melt are comprised the following steps：（1）The pretreatment of non-ferrous raw material；（2）To step（1）In the materials and parts that obtain carry out the pre-heat treatment, the thermal source of the pre-heat treatment is the hot gas discharged after melting burning；（3）Materials and parts after preheating put into smelting furnace and carry out melting after being weighed, and the materials and parts amount for putting into is controlled by weighing.The present invention was preheated before smelting furnace melting to tablet, reduced the temperature difference with smelting furnace, prevented the tablet of cooling from being exploded after entering smelting furnace, improved the efficiency of melting, shortened the combustion heating time of smelting furnace；Tablet is preheated using the flue gas of smelting furnace, waste heat is fully used, reduce energy loss, reducing energy consumption realizes recycling for the energy；The method operation is simplified, change it is traditional be molten into melting once twice, shorten the production cycle.
Description
Technical field
Technical field of smelting the present invention relates to cast melt, more particularly to a kind of environmental protection of non-ferrous metals casting melt,
Energy-saving production method.
Background technology
Casting is will to be poured into casting mold by the metal liquid of melting, shape and performance needed for being obtained through cooled and solidified
The manufacturing process of part.Casting is conventional manufacture method, and low cost of manufacture, technological flexibility is big, can obtain complicated shape
With large-scale casting, very big proportion is occupied in machine-building, had by ingot metal：Copper, iron, aluminium, tin, lead etc..
By ingot metal before casting is formed, metal liquid will be made by melting or be melt, current China's casting
The production process for making industry acquisition metal bath is as follows：1st, raw material, including simple metal, the metal of recovery and others are prepared
Metal etc.；2nd, melting factory is by raw material remelting into molten metal；3rd, melting factory asks configuration composition and ingot casting according to client, presses
According to species and model entitling board；4th, ingot is transported to foundry enterprise, foundry enterprise ingot is fused into metal again and is melted
Liquid；5th, last foundry enterprise casting is pressed into casting.Wherein, energy resource consumption highest, pollution most serious, materials and parts degradation waste most prominent
This link of melting factory in the middle of being exactly.Particularly in China, because industry development is immature, production technology falls behind, equipment
Level is original, and melting factory is even more the principal contradiction as national energy-saving emission reduction work.This traditional smelting technology not only mistake
Journey is complicated, the production cycle is long, and ingot is fused into liquation again into liquation and foundry enterprise in the remelting of melting factory
Two links, substantial amounts of will build factory building, equipment, not only increase Productive statistics, also consume the substantial amounts of energy, cause energy
The waste in source.In a word, because production equipment, the backwardness of facility cause traditional melting link not energy-conservation, not environmentally；And tradition is raw
The secondary fusion of product pattern produces secondary scaling loss and energy resource consumption, exacerbates energy consumption, discharge and pollutes.
Meanwhile, in traditional smelting technology, the metal materials and parts being broken all are directly added in smelting furnace, due to melting
Furnace temperature is higher, and the materials and parts of normal temperature are added in the smelting furnace of high temperature, and materials and parts are heated to molten state from normal temperature will be consumed largely
Heat, and the heat time is more long；Materials and parts temperature is instantaneously raised, and easily produces blast, and scaling loss is larger, influences aluminium liquid quality；
And the burning waste gas that smelting furnace burning is produced are expelled directly out, the utilization that waste heat is not obtained, while also polluting environment.These are all
Serious hidden danger is all caused to product quality, energy-conserving and environment-protective.
China is machine-building big country, and occupies very big proportion in being cast in machine-building, and such as lathe accounts for 60~80%,
Automobile accounts for 25%, and tractor accounts for 50~60%.And traditional foundry enterprise is mostly to obtain casting institute from the melting factory of upstream
The ingot of composition or species is needed, causes the melting factory of intermediate link more, therefore the energy that melting ingot casting enterprise is consumed is larger,
And key index and the developed country such as comprehensive energy consumption, pollutant emission, the resource recycling rate of China smelting metal production
Gap substantially, brings very big environmental pollution hidden danger.
The content of the invention
The deficiencies in the prior art in view of the above, the purpose of invention is to provide a kind of ring of non-ferrous metals casting melt
Guarantor, energy-saving production method, it is possible to increase liquation production efficiency, improve energy utilization rate, simplify production process.
In order to achieve the above objects and other related objects, the present invention provides a kind of environmental protection of non-ferrous metals casting melt, section
Energy production method, comprises the following steps：(1) pretreatment of non-ferrous raw material；(2) materials and parts obtained in step (1) are entered
Row the pre-heat treatment；(3) materials and parts are carried out with melting, molten non-ferrous metal is obtained.
Above-mentioned processing method, increased the technique preheated to tablet before smelting furnace melting, made to enter smelting furnace
Tablet temperature can reach 300 ° to 400 °, reduce the temperature difference with smelting furnace, prevent the tablet of cooling from occurring after entering smelting furnace
Blast, while the efficiency of melting can be improved, reduces the combustion heating time of smelting furnace；Operation is simplified, and is changed traditional
Melting once is molten into twice, the production cycle is shortened, and smelting furnace liquation out can be transported out standby according to demand.
Melting non-ferrous metal can be directly processed in the production site of foundry enterprise using the technique, so as to eliminate tradition
Melting enterprise；Due to the secondary scaling loss of traditional technique, energy consumption and the pollution of the technique of conventional aluminum regeneration are exacerbated, and it is of the invention
Traditional production model is changed, the melting of liquation only needs to once melt, the production link of the melting enterprise of abandoning tradition；From
Fundamentally reduce by a fusion process, also just fundamentally reduce discharge and energy consumption, more energy efficient, environmental protection.
As preferred：In the step (2), the thermal source of the pre-heat treatment is the hot gas discharged after melting burning in step (3).
Due to being preheated to tablet using the flue gas after melting so that the waste heat of melting heater exhaust is fully used,
Energy loss is reduced, reducing energy consumption realizes recycling for the energy.
As preferred：The step weighed to the raw material after preheating is additionally provided between the step (2) and step (3)
Suddenly, by weigh to put into smelting furnace melting doses be controlled.
Quantitatively accurately fed intake by metering.Can according to the depth of melting stove inner melt, adjust charging number, prevent
The equipment such as the circulating pump that only tablet is excessively impacted in smelting furnace；A small amount of tablet can be added for example when liquation is shallower, in liquation
Some tablets can be added when deeper, precise control is realized.
As preferred：In the step (2), the pre-heat treatment, the preheating device bag are carried out to materials and parts by preheating device
Preheating chamber, charging aperture and discharging opening are included, materials and parts enter preheating chamber and discharged through discharging opening after hot gas is preheated through charging aperture,
Hot gas after the melting burning near one end of discharging opening through being passed through preheating chamber.
Said structure, the waste heat gas of smelting furnace is moved from discharging opening to charging aperture direction, so as to tablet move toward one another,
Can make that hot gas contacts with tablet more fully, heat exchange effect is good.
As preferred：The preheating device sets have surplus heat air inlet, the waste heat air inlet near one end of discharging opening
It is connected by flue with the waste heat exhaust outlet of smelting furnace, the preheating device is provided with exhaust opening near one end of charging aperture, should
Exhaust opening is connected with dust arrester by pipeline.
Gas after tablet contact is entered after dust arrester carries out dedusting through exhaust opening, is entered in air, reduces discharge, drop
The low pollution to air, accomplishes environmentally friendly production.
As preferred：The drive mechanism that the preheating device includes at least one roller and drives roller to rotate, it is described
Charging aperture and exhaust opening are located at the first end of roller, and the waste heat air inlet and discharging opening are located at the second end of roller, the rolling
Multiple material scraping plates are tiltedly installed with cylinder inwall, when drive device drives roller to rotate, the tablet is under material scraping plate effect
Moved to discharging opening direction.
Cause that tablet is swept in curtain shape, and by charging aperture to discharging opening in roller by material scraping plate by the rotation of roller
Move in direction so that be fully contacted with hot gas with tablet, pre-heat effect is good.
As preferred：The roller includes the inner roller and outer roller that are coaxially disposed, and the length of inner roller is outer less than described
The length of roller, is fixed between inner roller and outer roller by support, and multiple first is tiltedly installed with the inner wall of inner drum
Material scraping plate, is tiltedly installed with multiple second material scraping plates, the inclination of second material scraping plate and the first material scraping plate on outer roller inwall
In the opposite direction.
Said structure, because the direction of the material scraping plate of outer roller second and the first material scraping plate incline direction are conversely, and inner roller
Entered by inner roller with outer roller synchronous axial system, therefore tablet, after feed end is sent to discharge end and carries out heat exchange, fallen
Enter outer roller near one end of discharging opening, then tablet is sent to feed end by outer roller, material is made by setting the mechanisms such as guide plate
Piece is again introduced into inner roller, so that tablet continues to be preheated in inner roller and the motion of outer roller interior circulation.Two-layer cylinder
The setting of structure, when smelting furnace need not add tablet, can be such that tablet is moved back and forth in inner roller and outer roller, it is ensured that material
The temperature of piece, when charging is needed, opens discharging opening and adds, and is mainly to exchange heat in inner roller because hot gas enters after roller
Passage, therefore tablet, preferably by inner roller entrance, certain tablet can also be entered by the space between outer roller and inner roller.
As preferred：The drive mechanism and roller are installed on support base, and the roller feed end and discharge end divide
The first end cap and the second end cap are not covered with, and the first end cap and the second end cap are fixedly installed on support base, and by the roller two
End sealing, the waste heat air inlet is opened in the second end cap center, and the discharging opening is located at the second end below waste heat air inlet
Cover, the door panel structure of discharging opening is provided with for splicing and closed on the discharging opening；The exhaust opening and charging aperture are located at
One end covers, and the angle between first material scraping plate and inner roller center line is 3 °~5 °, second material scraping plate and outer rolling
Angle between cylinder center line is -3 °~-5 °.
As preferred：The door panel structure includes door-plate, cross bar and two cylinders, and the cross bar is horizontally set on roller
Discharge end, the door-plate is fixed on cross bar, and roller both sides are stretched out at the two ends of the cross bar, and have been respectively fixedly connected with pivoted arm,
Two cylinders are vertically arranged in the both sides of roller discharge end, cylinder lower end and support seat hinge, cylinder upper end with described turn
Arm is hinged.
Door panel structure is closed in normality, when needing to be fed intake to smelting furnace, rotates door panel structure, and the tablet in roller leads to
Door panel structure is crossed to slip into the pipeline for feeding intake, by the lifting of cylinder rod, the upset of adjustment cross bar and door-plate, so as to discharging with
Switch between closing the door, speed of discharging etc. can be controlled by the angle for controlling door-plate to overturn.
As preferred：The step of be incubated to liquation and measured transport is additionally provided with after the step (3)；The step
Suddenly in (1), the non-ferrous metal to reclaiming is cleaned, crushed；Materials and parts temperature in the step (2) after preheating for 300 °~
400°。
As described above, the beneficial effect of the invention is：1st, tablet is preheated before smelting furnace melting, reduce tablet with
The temperature difference of smelting furnace, prevents the tablet of cooling from being exploded after entering smelting furnace, while the efficiency of melting can be improved, reduces molten
The combustion heating time of furnace.2nd, because the flue gas using smelting furnace is preheated to tablet so that the waste heat of melting heater exhaust
It is fully used, reduces energy loss, reducing energy consumption realizes recycling for the energy.3rd, while, the system operation obtains essence
Letter, change it is traditional be molten into melting once twice, shorten the production cycle, smelting furnace liquation out can turn according to demand
Transport standby or direct casting；The demand of various foundry enterprises is suitable for, such that it is able to change the production mould of conventional cast enterprise
Formula, reduces middle melting enterprise, so as to reduce energy resource consumption, reaches the purpose of energy-saving and emission-reduction.4th, the direction of the second material scraping plate with
First material scraping plate incline direction conversely, and inner roller and outer roller synchronous axial system, therefore tablet enter roller after, can continue
Inner roller and outer roller interior circulation motion and preheat, when smelting furnace need not add tablet, can make tablet inner roller and outward
Moved back and forth in roller, it is ensured that the temperature of tablet.5th, quantitatively accurately fed intake by weighing, thus can be according in smelting furnace
The depth of liquation, adjustment charging number, prevent the equipment such as the circulating pump that tablet excessively impacted in smelting furnace.6th, after liquation finished product
Stored by holding furnace, liquation accurate measurement of the liquation meter to being carried out.
Brief description of the drawings
Fig. 1 is the process chart of the embodiment of the present invention；
Fig. 2 is the horizontal layout schematic diagram of corresponding device in the embodiment of the present invention；
Fig. 3 is the mounting structure schematic diagram of corresponding device in the embodiment of the present invention；
Fig. 4 is lateral schematic diagram in Fig. 3 of the present invention；
Fig. 5 is the structural representation of preheating device in the embodiment of the present invention；
Fig. 6 is the schematic diagram that embodiment of the present invention middle door-plate structure coordinates with roller；
Fig. 7 is the structural representation of roller in the embodiment of the present invention；
Fig. 8 is the structural representation of smelting furnace in the embodiment of the present invention；
Fig. 9 is the A direction views in Fig. 8.
Piece mark explanation
1 crushing mechanism
2 connecting gears
21 hoisting mechanisms
3 batch charging mechanisms
31 chutes
4 dust arresters
5 preheating devices
51 inner rollers
52 outer rollers
53 first material scraping plates
54 second material scraping plates
55 second end caps
56 first end caps
571 motors
572 tugboats
573 bandlets
581 door-plates
582 pivoted arms
583 cross bars
584 cylinders
591 waste heat air inlets
592 discharging openings
6 smelting furnaces
61 combustion chambers
62 feed compartments
63 circulating pumps
64 feed intake well
65 waste heat exhaust outlets
66 liquation openings
67 liquid outlets high
68 low liquid outlets
7 holding furnaces
8 liquation meters
91 fluid grooves
92 flues
93 elephant trunks
94 weighing hoppers
95 second cylinders
96 turnover panels
97 dump skips
10 support frames
11 support bases
Specific embodiment
Below by the implementation method of particular specific embodiment explanation invention, those skilled in the art can be by this specification
Disclosed content understands other advantages and effect of invention easily.
As shown in figure 1, the present invention provides a kind of environmental protection, the energy-saving production method of non-ferrous metals casting melt, the present embodiment
With the production method example of aluminum solutions again, naturally it is also possible to the melting of other non-ferrous metal solutions is applied to, mainly including following
Step：
(1), fine aluminium, aluminium scrap product and other non-ferrous metals are together carried out as feeding crushing mechanism after raw material cleaning
Shearing-crushing, shearing-crushing carries out dedusting into several millimeters of material blocks to ten cms in shattering process；
(2) during aluminium material block obtained in the previous step, driven into batch charging mechanism, carried out through batch charging mechanism input preheating device pre-
Heat treatment, aluminium material block in the preheating chamber of preheating device stir back and forth by circulation, standby after being heated to 300 °~400 °；And to pre-
Discharged after dedusting treatment after heat, can be by way of electrostatic precipitation or bag-type dust；
(3) the aluminium material block that, will be had been warmed up is added in smelting furnace, controls to add the amount of aluminium material by way of metering, is prevented
Only equipment is impacted and damaged in the excessively multipair smelting furnace of disposable addition；
(4) melting, is carried out to aluminium material, the link can carry out dispensing, add other alloying elements etc., be made aluminum melt or
Person's molten aluminium alloy, stirs aluminium liquid and flows in smelting furnace using the method for circulation melting, allows aluminium liquid to produce circulation using external force, and
One whirlpool well is provided in cyclic process and produces downward whirlpool, so as to crushing aluminum material inspiration aluminium liquid bottom, using aluminium liquid
High temperature crushing aluminum is directly carried out into boiling hotization, so can largely reduce iron loss；Homogeneous heating is caused simultaneously, and element mixing is equal
It is even；
(5) purified treatment, is carried out to aluminum melt；
(6), make aluminum melt or molten aluminium alloy carries out being incubated standby, metering transhipment when to be used in flowing into holding furnace；
(7), melted liquation is added by the mould or relevant device that diversing flow system etc. is delivered to foundry enterprise
Work is into casting.
Using this method, because being made for casting melt is only completed by melting once, directly reduce traditional secondary and melt
Energy resource consumption needed for refining scaling loss, reduces discharge, and the flue gas to discharging carries out dedusting and also reaches emission reduction, the purpose of environmental protection.Together
When tablet is preheated due to the waste heat burnt using melting, realize recycling for waste heat, reach the purpose of energy-conservation.
As shown in Figures 2 to 4, the corollary system based on production method of the present invention, including smelting furnace 6, crushing mechanism 1, feed intake
Mechanism 3 and the preheating device 5 for being heated to aluminium material, preheating device 5 include preheating chamber, charging aperture and discharging opening 592,
The aluminium material shredded through crushing mechanism 1 is delivered to batch charging mechanism 3 by connecting gear 2, and batch charging mechanism 3 is by the grade of chute 31 and preheating
The charging aperture connection of device 5, is provided with feed intake well 64 and waste heat exhaust outlet 65 on smelting furnace 6, feed intake well 64 and discharging opening 592 it
Between connected with preheating chamber by flue 92 by the connection such as pipeline, waste heat exhaust outlet 65, the close discharging opening 592 of preheating device 5
One end set and have surplus heat air inlet 591, the two ends of flue 92 are connected with waste heat exhaust outlet 65 and waste heat air inlet 591 respectively, in advance
Thermal 5 is provided with exhaust opening near one end of charging aperture, and the exhaust opening is connected with dust arrester 4 by pipeline.
As shown in Figure 8 and Figure 9, smelting furnace 6 includes body of heater and partition wall, and body of heater is divided into combustion chamber 61 and feed compartment by partition wall
62, circulating pump 63 is provided with feed compartment 62, the well 64 that feeds intake is located at the vortex top of feed compartment 62, two is provided with partition wall and is melted
Liquid opening 66, two liquation openings 66 are located at the upstream and downstream of vortex respectively, and waste heat exhaust outlet 65 is arranged on combustion chamber
61 tops, combustion chamber 61 is additionally provided with two liquid outlets of height, and liquid outlet high 67 is used to release aluminium liquid, will under usual production status
Ensure that aluminium liquid height, in low liquid outlet more than 68, enables aluminium liquid to circulate, will by low liquid outlet 68 when dead halt
Aluminium liquid is released completely, and holding furnace 7 is connected by fluid groove 91 with smelting furnace 6, and the liquid outlet of the holding furnace 7 is additionally provided with liquation meter
Measuring device 8.
As shown in Figures 5 to 7, the drive mechanism that preheating device 5 includes at least one roller and drives roller to rotate, drives
Motivation structure is 4 motors 571 on support base 11, and tugboat 572, tugboat 572 and cylinder outer wall are connected with motor 571
The bandlet 573 of upper setting coordinates driving roller rotation, and charging aperture and exhaust opening are located at the first end of roller, waste heat air inlet 591
The second end with discharging opening 592 is located at roller, is tiltedly installed with multiple material scraping plates on inner wall of rotary drum, when drive device drives roller
During rotation, aluminium material is moved under material scraping plate effect to the direction of discharging opening 592.
In this example in order that aluminium material in roller can circulating-heating, roller includes the inner roller 51 that is coaxially disposed and outer rolling
Cylinder 52, can set a roller and be transmitted in other embodiment, the outer roller 52 in this example is enclosed within outside inner roller 51, interior rolling
Cylinder 51 length less than outer roller 52 length, between inner roller 51 and outer roller 52 by support fixation can with synchronous rotary,
Inner roller 51 and outer roller 52 are made by heat-resisting, high-abrasive material, heat-insulation layer are enclosed with the outer wall of outer roller 52, in inner roller 51
Multiple first material scraping plates 53 are tiltedly installed with wall, multiple second material scraping plates 54, second are tiltedly installed with the inwall of outer roller 52
The incline direction of the material scraping plate 53 of material scraping plate 54 and first is conversely, the first material scraping plate 53 and the second material scraping plate 54 are in inner roller 51 and outward
It is uniformly distributed on the inwall of roller 52, the first end cap 56 and the second end cap 55, the first end cap 56 and second is fixed with support base 11
Roller feed end and discharge end two ends are covered and sealed by end cap 55, and waste heat air inlet 591 is opened in the center of the second end cap 55, goes out
Material mouth 592 is located on the second end cap 55 of the lower section of waste heat air inlet 591, is provided with for splicing and closing on the discharging opening 592
The door panel structure of discharging opening 592, weighing hopper 94 is provided between discharging opening 592 and the well 64 that feeds intake.Exhaust opening and charging aperture are located at
On first end cap 56, the chute of batch charging mechanism 3 is stretched into inner roller 51 or between inner roller 51 and outer roller 52 from charging aperture；The
Angle between one material scraping plate 53 and the center line of inner roller 51 is 3 °, the folder between the second material scraping plate 54 and the center line of outer roller 52
Angle is -3 °.
Door panel structure includes door-plate 581, cross bar 583 and two cylinders 584, and cross bar 583 is horizontally set on the discharging of roller
End, door-plate 581 is fixed on cross bar 583, and roller both sides are stretched out at the two ends of cross bar 583, and have been respectively fixedly connected with pivoted arm 582,
Two cylinders 584 are vertically arranged in the both sides of roller discharge end, and the lower end of cylinder 584 is hinged with support base 11, the upper end of cylinder 584 with
Pivoted arm 582 is hinged.By the lifting of the bar of cylinder 584, the upset of adjustment cross bar 583 and door-plate 581, so as to discharging with close the door it
Between switch, speed etc. of discharging can be controlled by the angle for controlling door-plate 581 to overturn, certainly cross bar 583 and door-plate 581 it
Between linkage can also be set, pull it to overturn by linkage.
The lower section of door-plate 581 is correspondingly arranged on dump skip 97, and the lower section of dump skip 97 is connected with elephant trunk 93, and elephant trunk 93 is extended downwardly
To the top of well 64 that feeds intake, weighing hopper 94 is arranged on the middle part of elephant trunk 93 or bottom, and the bottom of weighing hopper 94 is additionally provided with turnover panel 96, and this is turned over
Plate 96 drives upset by the second cylinder 95 being arranged on elephant trunk 93, and the structure is similar with the structure of door-plate 581 is driven.
Height in this example in view of preheating device 5 is higher than smelting furnace 6, thus the general of support frame 10 for passing through frame structure
Preheating device 5 is supported, and charging device front is also equipped with hoisting mechanism 21, is fed intake for the aluminium material of crushing mechanism to be sent to
In mechanism 3, these mechanisms are all conventional meanses, be will not be repeated here, can in the case that difference in height is suitable in other embodiments
To save support frame 10 and hoisting mechanism 21 etc..
The present invention, setting preheating device 5 is preheated to aluminium material before the melting of smelting furnace 6, makes to enter the aluminium of smelting furnace 6
Material temperature degree can reach 300 ° to 400 °, reduce the temperature difference with smelting furnace 6, prevent the aluminium material of cooling from occurring after entering smelting furnace 6
Blast, while the efficiency of melting can be improved, reduces the combustion heating time of smelting furnace 6, and in warm, on aluminium material
Coating of attachment etc. turns to dust and ashes or flue gas under high temperature action, can be discharged after dust arrester treatment, improves entrance
The purity of the aluminium material of melting link；Because the flue gas using smelting furnace 6 is preheated to aluminium material so that it is remaining that smelting furnace 6 is vented
Heat is fully used, and reduces energy loss, and reducing energy consumption realizes recycling for the energy.Meanwhile, the system operation obtains essence
Letter, change it is traditional be molten into melting once twice, shorten the production cycle, the aluminium liquid out of smelting furnace 6 can be according to demand
Transport out standby；The system footprint area is small, is suitable for the demand of various enterprises.
The direction of the second material scraping plate 54 is with the incline direction of the first material scraping plate 53 conversely, and inner roller 51 and outer roller 52 are synchronous
Rotate, therefore aluminium material is entered by inner roller 51, after feed end is sent to discharge end and carries out heat exchange, falls into outer roller 52
Near one end of discharging opening 592, then aluminium material is sent to feed end by outer roller 52, aluminium material is made again by setting the mechanisms such as guide plate
In secondary entrance inner roller 51, so that aluminium material continues to be preheated in inner roller 51 and the motion of the interior circulation of outer roller 52.Bilayer rolling
The setting of barrel structure, when smelting furnace 6 need not add aluminium material, can make aluminium material in inner roller 51 and outer roller 52 to backhaul
It is dynamic, it is ensured that the temperature of aluminium material, when charging is needed, open discharging opening 592 and add, due to hot gas into inner roller after roller
It is main heat exchanger channels in 51, therefore aluminium material is preferably entered by inner roller 51, certain aluminium material also can be by outer roller 52 and inner roller
Space between 51 enters.
Quantitatively accurately fed intake by weighing hopper 94, thus charging can be adjusted according to the depth of aluminium liquid in smelting furnace 6
Number, prevent the equipment such as the circulating pump 63 that aluminium material excessively impacted in smelting furnace 6；Stored by holding furnace 7 after aluminium liquid finished product, melted
The aluminium liquid accurate measurement that liquid meter 8 pairs is carried out.Feeding intake, downhole forms vortex, is vortexed after tablet is cast and drawn in
Bottom, reduces scaling loss, prevents tablet from causing larger scaling loss in molten surface, and liquation is stirred by circulating pump so that liquation is heated
Uniformly, in liquation element is well mixed, and improves liquation quality.
Any person skilled in the art can all repair under the spirit and scope without prejudice to invention to above-described embodiment
Decorations change.Therefore, such as those of ordinary skill in the art without departing from disclosed in invention spirit and technology
All equivalent modifications completed under thought or change, should be covered by the claim invented.
Claims (5)
1. a kind of environmental protection, the energy-saving production method of non-ferrous metals casting melt, it is characterised in that comprise the following steps：(1) it is coloured
The pretreatment of raw material metal；(2) the pre-heat treatment is carried out to the materials and parts obtained in step (1)；(3) melting is carried out to materials and parts, is obtained
Obtain molten non-ferrous metal；In the step (2), the thermal source of the pre-heat treatment is the hot gas discharged after melting burning in step (3)；Institute
In stating step (2), the pre-heat treatment is carried out to materials and parts by preheating device, the preheating device include preheating chamber, charging aperture and
Discharging opening, materials and parts enter preheating chamber and are discharged through discharging opening after hot gas is preheated through charging aperture, the heat after the melting burning
Gas near one end of discharging opening through being passed through preheating chamber；The preheating device sets the air inlet that has surplus heat near one end of discharging opening
Mouthful, the waste heat air inlet is connected with the waste heat exhaust outlet of smelting furnace by flue, and the preheating device is close to the one of charging aperture
End is provided with exhaust opening, and the exhaust opening is connected with dust arrester by pipeline；The preheating device include at least one roller with
And drive the drive mechanism that roller rotates, the charging aperture and exhaust opening are located at the first end of roller, the waste heat air inlet and
Discharging opening is located at the second end of roller, and multiple material scraping plates are tiltedly installed with the inner wall of rotary drum, when drive device drives roller
During rotation, tablet is moved under material scraping plate effect to discharging opening direction；The roller includes the inner roller being coaxially disposed and outer rolling
Cylinder, the length of the length less than the outer roller of inner roller, is fixed, the inner roller between inner roller and outer roller by support
Multiple first material scraping plates are tiltedly installed with inwall, multiple second material scraping plates, described second are tiltedly installed with outer roller inwall
The incline direction of material scraping plate and the first material scraping plate is opposite；Tablet is entered by inner roller, is sent to discharge end by feed end and is gone forward side by side
After row heat exchange, outer roller is fallen near one end of discharging opening, then tablet is sent to feed end by outer roller, led by setting
Trigger structure makes tablet be again introduced into inner roller, so that tablet is lasting pre- in inner roller and the motion of outer roller interior circulation
Heat；Melting is carried out using smelting furnace, the smelting furnace includes body of heater and partition wall, and body of heater is divided into combustion chamber and charging by the partition wall
Room, is provided with circulating pump in feed compartment, the well location that feeds intake is provided with two liquation streams in the vortex top of feed compartment on the partition wall
Through hole, two liquation openings are located at the upstream and downstream of vortex respectively.
2. environmental protection, the energy-saving production method of a kind of non-ferrous metals casting melt according to claim 1, it is characterised in that：
The step of being weighed to the materials and parts after preheating is additionally provided between the step (2) and step (3), it is molten to input by weighing
The materials and parts amount of furnace melting is controlled.
3. environmental protection, the energy-saving production method of a kind of non-ferrous metals casting melt according to claim 1, it is characterised in that：
The drive mechanism and roller are installed on support base, and the roller feed end and discharge end are covered with the first end cap and respectively
Two end caps, the first end cap and the second end cap are fixedly installed on support base, and the roller two ends are sealed, the waste heat air inlet
Mouth is opened in the second end cap center, and the discharging opening is located on the second end cap below waste heat air inlet, is set on the discharging opening
There is for splicing and closes the door panel structure of discharging opening；The exhaust opening and charging aperture are located at first end and cover, and described first scrapes
Angle between flitch and inner roller center line is 3 °~5 °, the angle between second material scraping plate and outer roller center line
It is -3 °~-5 °.
4. environmental protection, the energy-saving production method of a kind of non-ferrous metals casting melt according to claim 3, it is characterised in that：
The door panel structure includes door-plate, cross bar and two cylinders, and the cross bar is horizontally set on the discharge end of roller, and the door-plate is consolidated
It is scheduled on cross bar, roller both sides are stretched out at the two ends of the cross bar, and have been respectively fixedly connected with pivoted arm, and two cylinders set vertically
Put in the both sides of roller discharge end, cylinder lower end and support seat hinge, cylinder upper end is hinged with the pivoted arm.
5. environmental protection, the energy-saving production method of a kind of non-ferrous metals casting melt according to claim 1, it is characterised in that：
The step of be incubated to liquation and measured transport is additionally provided with after the step (3)；In the step (1), to what is reclaimed
Non-ferrous metal is cleaned, crushed；Materials and parts temperature in the step (2) after preheating is 300 °~400 °.
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| CN105648221B (en) * | 2016-03-02 | 2017-09-22 | 江阴迪新金属工业有限公司 | The long material of aluminium scrap reclaims melting casting rod system and the long material of aluminium scrap reclaims melting casting rod method |
| CN105648222A (en) * | 2016-03-02 | 2016-06-08 | 江阴迪新金属工业有限公司 | Rod casting system and method for recycling and smelting small materials of aluminum scraps |
| CN107339891A (en) * | 2017-08-16 | 2017-11-10 | 熊曙雄 | Metal melting system |
| CN109423562A (en) * | 2017-08-29 | 2019-03-05 | 晟通科技集团有限公司 | Aluminum anodizing method |
| CN109664039A (en) * | 2018-12-24 | 2019-04-23 | 中煤北京煤矿机械有限责任公司 | Q890 steel plate welds dehydrogenation and weld preheating method of adjustment |
| CN113566587A (en) * | 2021-07-28 | 2021-10-29 | 河南永通铝业有限公司 | Waste heat utilization type slag cleaning and smelting device |
| CN113566588A (en) * | 2021-07-28 | 2021-10-29 | 河南恒通新材料有限公司 | Waste heat utilization type slag cleaning and smelting device |
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