CN106148703B - A kind of metal solid waste recovery processing equipment - Google Patents

A kind of metal solid waste recovery processing equipment Download PDF

Info

Publication number
CN106148703B
CN106148703B CN201510208738.1A CN201510208738A CN106148703B CN 106148703 B CN106148703 B CN 106148703B CN 201510208738 A CN201510208738 A CN 201510208738A CN 106148703 B CN106148703 B CN 106148703B
Authority
CN
China
Prior art keywords
hot gas
rotary kiln
solid waste
cylinder type
type rotary
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201510208738.1A
Other languages
Chinese (zh)
Other versions
CN106148703A (en
Inventor
吉本成实
高鸿
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHENYANG NEU-SANKEN INDUSTRIAL FURNACE Manufacturing Co Ltd
Sanken Sangyo Co Ltd
Original Assignee
SHENYANG NEU-SANKEN INDUSTRIAL FURNACE Manufacturing Co Ltd
Sanken Sangyo Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SHENYANG NEU-SANKEN INDUSTRIAL FURNACE Manufacturing Co Ltd, Sanken Sangyo Co Ltd filed Critical SHENYANG NEU-SANKEN INDUSTRIAL FURNACE Manufacturing Co Ltd
Priority to CN201510208738.1A priority Critical patent/CN106148703B/en
Publication of CN106148703A publication Critical patent/CN106148703A/en
Application granted granted Critical
Publication of CN106148703B publication Critical patent/CN106148703B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Processing Of Solid Wastes (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)

Abstract

The present invention provides a kind of metal solid waste recovery processing equipment, belongs to solid waste recycling equipment technical field.The equipment is to heat waste material by tilting cylinder type rotary kiln (10) to remove the pollutants such as japanning, chip oil, center hot air duct (32) is set between the non-rotating component (22) of rotary kiln and (24), the hot gas of afterburner (42) heating flows through central hot wind pipeline outlet (16), and adverse current heats furnace charge by firing chamber afterwards, then is guided to flue (40) after-combustion recycling or removed through handling heel row by wind turbine (38);The furnace charge heated is sent into fusing, ingot casting in melting furnace (74) by the discharge end of rotary kiln (10).This equipment has the advantages that energy consumption is low, noxious gas emission is few, furnace charge thermal loss is small, compact type and the item such as adaptable.

Description

A kind of metal solid waste recovery processing equipment
Technical field
The invention belongs to solid waste recycling equipment technical field, and in particular at a kind of metal solid waste recovery Manage device, particularly aluminum products processing industry waste material, aluminium ring pull end recycles and other metals or Nonmetal waste, such as steel Heating recovery equipment used in iron waste material or fiber glass waste recycling.
Background technology
In existing various metal solid waste recoveries utilize technical field, waste material is carried out commonly using heating furnace kiln Recycling, such as discarded aluminium ring pull end is first placed on pallet conveyer, be then reloaded among rotary kiln into Row heats, but its treatment effect and unsatisfactory.First, equipment poor sealing, the japanning of volatilization or it is similar it is poisonous into Divide among being directly discharged to air, and equipment cannot continuously work under the operation temperature level of optimization.
In order to efficiently and economically handle metal solid waste material, it is necessary to existing equipment is improved, is on the one hand tried one's best Stove, is on the other hand maintained the operation temperature of an optimization by secondary pollution caused by reducing processing metal solid waste material Level, reduces metal solid waste material and pollutant forms operation temperature amplitude of variation caused during change, assigns equipment control System tackles the quick ability for correcting response during temperature change, to obtain more economic and social benefits.
Heat recycling field, efficient, ring in metal solid waste material, particularly aluminium skimmings and aluminium ring pull end Guarantor, low energy consumption, compact and adaptable waste disposal recycle pursuing a goal as industry.
The content of the invention
It is an object of the invention to provide one kind manufacture, installation and operation economy, efficient stable is operated, can particularly be connected Continuous ground no pollution heats the compact " metal solid waste recovery processing equipment " of metal solid waste material.
The key technical problem of solution is " metal solid waste material heating recovery processing equipment " manufacture, installation, the warp of operation Ji property and stability, particularly the efficient of metal solid waste material useful component, low energy consumption and the recycling of low pollution emission.
As shown in Figures 1 and 2, whole equipment is with circle for the metal solid waste recovery processing equipment gone out designed by the present invention Cartridge type rotary kiln 10 is main body heating equipment, and the hot gas that rotary kiln is further included in the metal solid waste recovery processing equipment enters Mouth 14, heat outlet 16, input terminal non-rotating sealing member 22, output terminal non-rotating sealing member 24, discharge gate 28, central hot Gas passage 32, hot gas conduit 36, afterburner 37, centrifugal blower 38, smokejack 40, lateral 46, hot gas heat exchange cooler 47th, pollution control device 50 and secondary smokejack 52, wherein, after-burner 42, cylinder type revolution are provided with afterburner 37 The front end of kiln 10 is equipped with Charge Treatment device and furnace charge feeding device, and cylinder type rotary kiln 10 is generally obliquely arranged, cylinder The input terminal of type rotary kiln 10 is equipped with input terminal non-rotating sealing member 22, and the output terminal of cylinder type rotary kiln 10 is equipped with output terminal Non-rotating sealing member 24, is equipped with one between input terminal non-rotating sealing member 22 and output terminal non-rotating sealing member 24 Heart hot gas path 32, and center hot gas path 32 is coaxially fixed on cylinder type rotary kiln 10, it is same with cylinder type rotary kiln 10 Axis rotates, and one end of center hot gas path 32 is equipped with hot gas inlet 14, and hot gas inlet 14 is by hot-blast conduit 36 with being independently arranged 42 lower end of after-burner of afterburner 37 behind is connected, and the other end of center hot gas path 32 is equipped with heat outlet 16, heat outlet 16 passes through shape between output terminal non-rotating sealing member 24 and the inner wall of center hot gas path 32 and rotary kiln 10 Into circular passage communicated with centrifugal blower 38, the air outlet and smokejack 40 of centrifugal blower 38 communicate, the outlet of smokejack 40 Communicated with the upper end of afterburner 37, what is communicated with 37 upper end of afterburner also has hot gas heat exchange cooler 47, and hot gas heat exchange is cold But the other end of device 47 is connected by the lateral 46 of exhaust gas with pollution control device 50, and pollution control device 50 is again with two Secondary smokejack 52 is connected, and 10 end of cylinder type rotary kiln is equipped with discharge gate 28, the entrance of discharge gate 28 and lift and conveyer 30 Corresponding, the outlet of lift and conveyer 30 is corresponding with vibrating screen 70, and outlet and 72 entrance of feed chute of vibrating screen 70 are connected, Feed chute 72 is communicated with the entrance of melting furnace 74, and dust petticoat pipe 76 covers on the top of feed chute 72.
Exemplary embodiment according to the present invention, the furnace charge feeding device in the metal solid waste recovery processing equipment are It is made of feed hopper 20 and inclination passage 26, wherein, feed hopper 20 is connected with passage 26 is tilted, and tilts passage 26 and prolongs Reach at the hot gas inlet 14 of rotary kiln.
Exemplary embodiment according to the present invention, be arranged at the Charge Treatment device of 10 front end of cylinder type rotary kiln mainly by Cutting machine 60, conveyer 62, weighing-machine 64, magnetic drum 66 and inclined lift conveyer 68 form, wherein, cutting machine 60 directly with Conveyer 62 is connected, and conveyer 62 is connected with weighing-machine 64 again, and the back of weighing-machine 64 is provided with magnetic drum 66, magnetic drum 66 are connected with inclined lift conveyer 68 again.
Exemplary embodiment according to the present invention, the furnace charge aftertreatment device being connected with discharge gate 28 is mainly by lifting Conveyer 30, vibrating screen 70, feed chute 72, aluminium skimmings melting furnace 74, dust petticoat pipe 76, chute 78, aluminium water bag 80 and casting machine 82 compositions, wherein, discharge gate 28 is corresponding with the entrance of lift and conveyer 30, outlet and 70 phase of vibrating screen of lift and conveyer 30 Corresponding, the outlet of vibrating screen 70 is connected with 72 entrance of feed chute, and feed chute 72 is communicated with the entrance of melting furnace 74, collects the cloud of dust Cover 76 covers on the top of feed chute 72, and the liquid outlet of aluminium skimmings melting furnace 74 is connected with chute 78, chute 78 and aluminium water bag 80 or Casting machine 82 is connected.
Metal solid waste recovery processing equipment according to the present invention at work, consolidate by the metal such as aluminium skimmings or aluminium ring pull end The organic pollutions such as japanning, chip oil are removed after firing chamber's heating that body waste material passes through the cylinder type rotary kiln 10 being in tilted layout, so The furnace charge of processing is discharged from the discharge gate 28 of cylinder type rotary kiln 10 afterwards, vibration is quickly delivered to by furnace charge lift and conveyer 30 Sieve 70, enters melting furnace 74 through feed chute 72;Aggregation cloud of dust cover 76, which covers on the top of feed chute 72, reduces atmosphere pollution;Dissolving Dissolving molten aluminum in stove 74 injects aluminium water bag 80 by chute 78 or is directly injected into casting machine 82;The burning hot gas of after-burner 42 Be sent into hot gas inlet 14, flow through after the heat outlet 16 of center hot gas path 32 with furnace charge adverse current, through center hot gas path 32 with Drawn behind the circular passage formed between 10 inner wall of rotary kiln by centrifugal blower 38, the exhaust gas of extraction through smokejack 40 enter with 37 upper end of afterburner communicated, wherein, be partly into after-burner 42 burning recycle, a part exchange heat through hot gas Cooler 47 exchanges heat is discharged with after the processing of pollution control device 50 by secondary smokejack 52.
Aluminium skimmings or aluminium ring pull end waste material pass through the kiln for the cylinder type rotary kiln 10 obliquely arranged centered on sloping shaft Room heating removes the pollutants such as japanning, chip oil.
The burning gases circulatory system includes non-to output terminal from 10 input terminal non-rotating sealing member 22 of cylinder type rotary kiln The center hot gas path 32 set between rotating sealing member 24 centered on sloping shaft.
After the hot gas that one typical after-burner 42 heats flows through central hot gas passage 32, reverse counterflow passes through cylinder type Smokejack 40 is introduced into after the heating furnace charge of rotary kiln 10 and excludes or introduce the burning recycling of after-burner 42.
Heat treatment apparatus discharge end 28 by the high temperature aluminum material heated through elevating transport apparatus 30, vibrating screen 70th, feed chute 72 is sent directly into melting furnace 74;Dust petticoat pipe 76 covers on the top of feed chute 72 to reduce atmosphere pollution.
The technological merit of the present invention:The heating of metal solid waste material is energy consumption minimized, into the furnace charge heat of melting furnace Minimization of loss, disposal of pollutants minimize, and facility compact is adaptable.
Brief description of the drawings
Fig. 1 is the front view of Al-alloy metal solid waste heat treatment apparatus and metal ingredient re-melting apparatus system;
Fig. 2 is the top view of Al-alloy metal solid waste heat treatment apparatus and metal ingredient re-melting apparatus system.
Embodiment
This equipment is designed in its embodiment fully according to the form described in the content of the invention.Herein will be into One step is described.Referring to Figures 1 and 2, " metal solid waste material heat treatment apparatus " is mainly by forming the circle of sealed furnace firing chamber Cartridge type rotary kiln 10 is formed, the processing material output terminal of the rotation axis of rotary kiln from the metal solid waste material input terminal in left side to the right It is in tilted layout, the both ends connection input terminal non-rotating sealing member 22 and output terminal non-rotating sealing member of cylinder type rotary kiln 10 24, the center hot gas path 32 coaxial with cylinder type rotary kiln 10 extends to output terminal non-rotating sealing member from hot gas inlet 14 The firing chamber space of 24 front ends, that is, stretch to the upper space of the discharge end outlet 28 of cylinder type rotary kiln 10, thus formed by The tubular furnace charge passage that 10 outer wall of cylinder type rotary kiln is formed with center hot gas path 32.
Metal solid waste material enters in cylinder type rotary kiln 10 from feed hopper 20 through open-ended inclined feeding pipe 26 In tubular furnace charge passage, and by the furnace charge passage, the hot gas inversely passed through is discharged after heating from discharge end outlet 28, it After fall on lift and conveyer 30.
The afterburner 37 abutted for the heating hot gas for preheating and controlling temperature from input terminal non-rotating sealing member 22 Lower end exported by hot-blast conduit 36 and be fed to through hot gas inlet 14 in center hot gas path 32.
Numerous sealing position leakage pollution gas in order to prevent, the pressure control of flowing gas in cylinder type rotary kiln 10 It is made as negative pressure.
The negative pressure of flowing gas is by positioned at 22 upper smoke of input terminal non-rotating sealing member in cylinder type rotary kiln 10 38 draft of the centrifugal blower effect of gas outlet, forms negative on the top for being attached thereto logical input terminal non-rotating sealing member 22 Pressure, the air outlet of centrifugal blower 38 are connected by pipeline with smokejack 40, and smokejack 40 connects with the upper end of afterburner 37 again It is logical.
The circulation hot gas entered in cylinder type rotary kiln 10 does not contact directly initially with metal solid waste material, is introduced into Heat is transferred out in center hot gas path 32;Then, the non-rotation of input terminal is returned to from non-rotating 24 space of closure mechanism of output terminal Turn the space of containment member 22, with the opposite direction adverse current of the metal solid waste material direction of motion in cylinder type rotary kiln 10 On, directly heat metal solid waste material;Finally, using the draft of centrifugal blower 38 afterburner 37 is drained into through smokejack 40 Upper end.
Afterburner 37 can use gas with various fuel and different types of burner.The after-burner 42 of afterburner 37 Design temperature necessarily be greater than the temperature in cylinder type rotary kiln 10, with reach make heating waste material floating coating component and it is other pollution into Chemically reacted at the temperature divided in after-burner 42 and obtain being pyrolyzed to remove the purpose of processing.From 42 bottom of after-burner The burning gases of portion's discharge, afterburner 37 is returned to after cylinder type rotary kiln 10 by centrifugal blower 38 and smokejack 40 Upper end, a part therein can be recycled, most of hot gas heat exchange by being connected with the upper end of afterburner 37 After 47 cooling heat transferring of cooler, then it is sent to after pollution control device 50 is handled through secondary 52 row of smokejack through lateral 46 Go out.
Metal solid waste material passes through inclined feeding pipe 26 and the input terminal non-rotating sealing member 22 of cylinder type rotary kiln 10 To cylinder type rotary kiln 10 main region advance, in this way, metal solid waste material enter cylinder type rotary kiln 10 before and Exported heat by the wall of center hot gas path 32 in tubular furnace charge passage in cylinder type rotary kiln 10 and be discharged to center hot gas and lead to The hot gas preheating and drying of 32 external space of road, material temperature rise, operating efficiency increase, makes further minimum heat losses.
For the present embodiment, metal solid waste material, such as aluminium skimmings or pop can are initially transported to cutting machine 60, are cut into several The fragment or particle of single-size;In order to reject all irony components on conveyer 62, by the metal solid waste material of chopping It is delivered in weighing-machine 64 and magnetic drum 66, after suctioning out iron content object, is delivered to furnace charge by inclined lift conveyer 68 With in the feed hopper 20 for minimizing hot gas leakage.
About 500 DEG C of furnace charge is discharged from the Discharge outlet 28 of cylinder type rotary kiln 10, is quickly conveyed by lift and conveyer 30 To vibrating screen 70, enter melting furnace 74 through feed chute 72;Dust petticoat pipe 76 covers on the top of feed chute 72 to reduce air dirt Dye.
Dissolving molten aluminum in melting furnace 74 is used to subsequently manufacture by the way that the injection aluminium water bag of chute 78 is after 80s.

Claims (4)

1. a kind of metal solid waste recovery processing equipment, the metal solid waste recovery processing equipment is with cylinder type rotary kiln (10) it is main body heating equipment, it is characterised in that the hot gas that the metal solid waste recovery processing equipment further includes rotary kiln enters Mouth (14), heat outlet (16), feed hopper (20), input terminal non-rotating sealing member (22), output terminal non-rotating sealing member (24), tilt passage (26), discharge gate (28), center hot gas path (32), hot gas conduit (36), afterburner (37), from Heart wind turbine (38), smokejack (40), lateral (46), hot gas heat exchange cooler (47), pollution control device (50), secondary row Flue (52),
Wherein, after-burner (42) is provided with afterburner (37),
The front end of cylinder type rotary kiln (10) is equipped with Charge Treatment device and furnace charge feeding device, and cylinder type rotary kiln (10) tilts Ground arranges that the input terminal of cylinder type rotary kiln (10) is equipped with input terminal non-rotating sealing member (22),
The output terminal of cylinder type rotary kiln (10) is equipped with output terminal non-rotating sealing member (24),
Center hot gas path is equipped between input terminal non-rotating sealing member (22) and output terminal non-rotating sealing member (24) (32), center hot gas path (32) is coaxially attached on cylinder type rotary kiln (10) with coaxial with cylinder type rotary kiln (10) Rotation, one end of center hot gas path (32) are equipped with hot gas inlet (14), and hot gas inlet (14) is by hot gas conduit (36) and solely Erect and put after-burner (42) lower end of afterburner (37) behind and be connected, the other end of center hot gas path (32) is set Have a heat outlet (16), heat outlet (16) by output terminal non-rotating sealing member (24) and center hot gas path (32) and The circular passage formed between rotary kiln (10) inner wall is communicated with centrifugal blower (38), the air outlet of centrifugal blower (38) and smoke evacuation Road (40) communicates, and the outlet of smokejack (40) is communicated with the upper end of afterburner (37), and with afterburner (37) upper end phase Logical also have hot gas heat exchange cooler (47), the other end of hot gas heat exchange cooler (47) by the lateral (46) of exhaust gas with Pollution control device (50) is connected, and pollution control device (50) is connected with secondary smokejack (52) again,
Cylinder type rotary kiln (10) end is equipped with discharge gate (28), and discharge gate (28) is connected with furnace charge aftertreatment device.
2. metal solid waste recovery processing equipment according to claim 1, it is characterised in that the feed hopper (20) and Tilt passage (26) and form furnace charge feeding device, wherein, feed hopper (20) is connected with passage (26) is tilted, and tilts guide Pipe (26) extends to hot gas inlet (14) place of rotary kiln.
3. metal solid waste recovery processing equipment according to claim 1, it is characterised in that described to be arranged at cylinder type The Charge Treatment device of rotary kiln (10) front end is mainly by cutting machine (60), conveyer (62), weighing-machine (64), magnetic drum (66), inclined lift conveyer (68) forms, wherein, cutting machine (60) is directly connected with conveyer (62), conveyer (62) Be connected again with weighing-machine (64), be equipped with magnetic drum (66) on rear side of weighing-machine (64), magnetic drum (66) and with inclined lift conveying Machine (68) is connected.
4. metal solid waste recovery processing equipment according to claim 1, it is characterised in that described and discharge gate (28) The furnace charge aftertreatment device being connected mainly is melted by lift and conveyer (30), vibrating screen (70), feed chute (72), aluminium skimmings Stove (74), dust petticoat pipe (76), chute (78), aluminium water bag (80) and casting machine (82) composition, wherein, discharge gate (28) and lifting The entrance of conveyer (30) is corresponding, and the outlet of lift and conveyer (30) is corresponding with vibrating screen (70), and vibrating screen (70) go out Mouth is connected with feed chute (72) entrance, and feed chute (72) is communicated with the entrance of melting furnace (74), and dust petticoat pipe (76) covers on The top of feed chute (72), the liquid outlet of aluminium skimmings melting furnace (74) are connected with chute (78), chute (78) and aluminium water bag (80) or casting machine (82) is connected.
CN201510208738.1A 2015-04-28 2015-04-28 A kind of metal solid waste recovery processing equipment Active CN106148703B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510208738.1A CN106148703B (en) 2015-04-28 2015-04-28 A kind of metal solid waste recovery processing equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510208738.1A CN106148703B (en) 2015-04-28 2015-04-28 A kind of metal solid waste recovery processing equipment

Publications (2)

Publication Number Publication Date
CN106148703A CN106148703A (en) 2016-11-23
CN106148703B true CN106148703B (en) 2018-05-01

Family

ID=57347932

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510208738.1A Active CN106148703B (en) 2015-04-28 2015-04-28 A kind of metal solid waste recovery processing equipment

Country Status (1)

Country Link
CN (1) CN106148703B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109321754A (en) * 2018-12-03 2019-02-12 攀枝花钢城集团有限公司 The method of aluminium scrap production aluminum shot
CN111020218B (en) * 2019-12-27 2022-06-21 浙江铂大工贸有限公司 Aluminum skimmings waste liquid recovery processing device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103008337A (en) * 2012-12-16 2013-04-03 华中农业大学 System and method for repairing organic material polluted soil
CN103643028A (en) * 2013-11-19 2014-03-19 茌平县信发盛吉赤泥处理有限公司 Rotary kiln for reducing iron powder by utilization of alumina red mud
CN104236304A (en) * 2014-09-29 2014-12-24 南京新中磁电技术工程有限公司 Novel external heating type gas rotary kiln
CN204727933U (en) * 2015-04-28 2015-10-28 三建产业株式会社 A kind of metal solid waste recovery treatment facility

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103008337A (en) * 2012-12-16 2013-04-03 华中农业大学 System and method for repairing organic material polluted soil
CN103643028A (en) * 2013-11-19 2014-03-19 茌平县信发盛吉赤泥处理有限公司 Rotary kiln for reducing iron powder by utilization of alumina red mud
CN104236304A (en) * 2014-09-29 2014-12-24 南京新中磁电技术工程有限公司 Novel external heating type gas rotary kiln
CN204727933U (en) * 2015-04-28 2015-10-28 三建产业株式会社 A kind of metal solid waste recovery treatment facility

Also Published As

Publication number Publication date
CN106148703A (en) 2016-11-23

Similar Documents

Publication Publication Date Title
CN204727933U (en) A kind of metal solid waste recovery treatment facility
US5846480A (en) Aluminum remelting furnace, in particular for melting aluminum scrap to be recycled
CN106148703B (en) A kind of metal solid waste recovery processing equipment
CN106591585B (en) A kind of waste and old circuit board processing equipment for recycling and method
KR101686488B1 (en) Alumium melting furnace using flue gas
CN207262943U (en) Flashmelt device for intermetallic composite coating
CN107504810A (en) A kind of environmentally friendly aluminum melting method and environmentally friendly aluminium melting furnace
TW201412994A (en) Plant and relative procedure for the continuous feeding of heated metallic material to a melting furnace for the production of steel
CN207958425U (en) Electric heating roller-bottom type semiclosed loop thermal cycle annealing device
EP2464940B1 (en) Waste heat system and method for preheating scrap
JPH0613950B2 (en) Rotary kiln for heating powdery material and method for heating material
CN109332355B (en) High-temperature melting treatment device and process for dangerous waste
CN107262506A (en) Industrial slag salt harmless treatment device and its application method
US20230142213A1 (en) Harvester high efficiency heat utilization device
CN206956122U (en) A kind of aluminium skimmings secondary aluminium rapid melting device
CN206771987U (en) A kind of cooling tunneled sintering kiln certainly
CN105603212B (en) Secondary aluminium waste gas circulation cleaning system
CN212246931U (en) Closed cycle roasting and oil extraction system
CN104846194B (en) Cooling method of chloridized roasted pellets
CN207779149U (en) A kind of heating recovery of liquid slag utilizes device
KR100907956B1 (en) Apparatus for pre-heating material
CN220206311U (en) Vacuum induction furnace for treating carbonaceous waste in overhaul slag
KR101513985B1 (en) Alumium melting furnace using flue gas
JP3680127B2 (en) Heat treatment equipment
US12050060B2 (en) Scrap dryer and/or scrap preheater

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant