CN208505005U - Novel energy-conserving Hearth Furnace melting furnace - Google Patents

Novel energy-conserving Hearth Furnace melting furnace Download PDF

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CN208505005U
CN208505005U CN201821181230.2U CN201821181230U CN208505005U CN 208505005 U CN208505005 U CN 208505005U CN 201821181230 U CN201821181230 U CN 201821181230U CN 208505005 U CN208505005 U CN 208505005U
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chamber
preheating chamber
melting
conserving
gas
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易平
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易平
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Abstract

The utility model energy conservation Hearth Furnace melting furnace keeps the temperature of molten metal crucible holding room using the heat of combustion chamber gases, significantly more efficient to utilize resource, while also reaching energy-saving effect;It is equipped with fire grate in melting chamber, changes traditional reflective heat transfer, so that combustion gas penetrates from fire grate hole and melt metal, improves the thermal efficiency;It is connected with diversion pipe between preheating chamber, makes gas between preheating chamber after repetitive sequence circulation by diversion pipe, then be discharged by exhaust outlet, the exhaust temperature of melting chamber can be substantially reduced, and improve the thermal efficiency;Tail gas a part of preheating chamber discharge flows back into combustion chamber, and another part is discharged by contra-flow heat exchanger, and wherein fresh air passes through contra-flow heat exchanger again and enters combustor, so as to the preheated air in contra-flow heat exchanger;The thermal efficiency of the utility model novel energy-conserving Hearth Furnace melting furnace is promoted to 85% or more, and alumina rate is reduced to 0.3% hereinafter, the advantage with energy conservation and reduction production cost, is suitble to popularization and application.

Description

Novel energy-conserving Hearth Furnace melting furnace
Technical field
The utility model relates to melting furnace field, espespecially a kind of novel energy-conserving Hearth Furnace melting furnace.
Background technique
In field of metallurgy, fusing metal is very universal and important technique.Metal after fusing can be used in casting The metal parts of various moulding.Melting furnace is a kind of novel high-efficiency and energy-saving aluminium melting furnace developed according to aluminium smelting technology, mainly For the fusing and heat preservation of aluminium ingot, the technique that it can meet well aluminium melting.The furnace be by melting furnace, crucible, heating element, The composition such as furnace cover lifting mechanism, electric appliance automatic temperature control system.Furnace shell is welded into cylindrical shape by fashioned iron and steel plate.Under furnace body front end There is a hole in portion, for crucible because corrosion, oxidation generate crack and formed in the case of drip, the melt in crucible can be made to flow by this hole It comes out of the stove external, so that operating room's burner hearth will not be damaged.
The current fast developments such as automobile industry, communications industry, building trade, ornament at home, make metal alloy Dosage is also increasing, in conjunction with alloy product density it is low, intensity is high, die casting is strong, be suitble to die casting complexity structure, institute With very widely used, thus it is also higher and higher to the equipment requirement of melting molten aluminum and storage molten aluminum.
Melting furnace in the prior art because heating system unstability caused by excessively high, the molten aluminum oxidization burning loss of energy consumption etc. it is bad Effect.Therefore, melting furnace needs to be improved in design, reduces production cost, the raising thermal efficiency and drop to better meet The requirement of low alumina rate.
Summary of the invention
To solve the above problems, the utility model provides a kind of novel energy-conserving Hearth Furnace melting furnace, thermal effect is substantially increased Rate, and reduce aluminum aluminum oxide.
A kind of novel energy-conserving Hearth Furnace melting furnace that in order to achieve the above purposes, the technical solution adopted by the utility model is:, packet Combustion chamber, the holding of molten metal crucible room, melting chamber, preheating chamber are included, is protected on the left of the combustion chamber by channel and molten metal crucible Connection on the right side of room to be held, while being also connected to by channel with melting chamber lower end, the melting chamber is arranged in preheating chamber lower end, and with The connection of preheating chamber lower end, the melting chamber lower end is equipped with the molten metal diversion trench for keeping room to be connected to molten metal crucible, described molten To change interior and is equipped with fire grate, the preheating chamber surface is equipped with several diversion pipes, and described diversion pipe one end is connected to the upper end of preheating chamber, The other end is connected to the lower end of another preheating chamber, so that gas forms repetitive sequence circulation, the preheating between preheating chamber Room upper end is equipped with exhaust outlet, and tail gas is discharged by contra-flow heat exchanger by channel in the exhaust outlet, and the tail gas of the exhaust outlet is also It is connected to by channel with combustion chamber upper end, the contra-flow heat exchanger is changed by combustor and combustion chamber, air by adverse current Hot device enters combustor.
Further, the molten metal crucible keeps room to be equipped with air inlet and air outlet, and the indoor gas of burning is logical It crosses channel and enters air inlet, and melting chamber is entered by gas outlet, it is logical equipped with what is be connected between the air inlet and gas outlet Road, and it is equipped with regulating valve.
Further, the preheating chamber includes the first preheating chamber and the second preheating chamber, and first preheating chamber and second is in advance Hot cell is set side by side, and the diversion pipe includes the first diversion pipe and the second diversion pipe, and first diversion pipe upper end is pre- with first Connection, lower end are connected to the second preheating chamber lower end on the upside of hot cell, are connected on the upside of second diversion pipe upper end and the second preheating chamber, Lower end is connected to the first preheating chamber.
Wherein, the diversion pipe upper end is equipped with regulating valve.
Wherein, the channel of the melting chamber lower end is equipped with regulating valve.
Wherein, the channel of the contra-flow heat exchanger discharge tail gas is equipped with regulating valve.
Further, the channel of the preheating chamber exhaust outlet discharge is equipped with blower.
Further, the combustor uses natural gas or fuel burning.
Further, several circular through holes extended vertically through are equipped in the fire grate.
Further, the combustion chamber is independent combustion chamber, separately positioned with melting chamber, is hankered in advance so that fusing be allowed to neutralize Metal in the combustion gas of anaerobic or tail gas be heated, to greatest extent reduce fusion process in metal oxidation reaction.
The utility model has the beneficial effects that:
1. the temperature of molten metal crucible holding room is kept using the heat of combustion chamber gases, it is significantly more efficient to utilize resource, Also reach energy-saving effect simultaneously;
2. being equipped with fire grate in melting chamber, change traditional reflective heat transfer, so that combustion gas is penetrated and melted from fire grate hole Change metal, improves the thermal efficiency;
3. being connected with diversion pipe between preheating chamber, by diversion pipe gas repetitive sequence between preheating chamber is recycled Afterwards, then by exhaust outlet it is discharged, the exhaust temperature of melting chamber can be substantially reduced, and improve the thermal efficiency;
4. tail gas a part of preheating chamber discharge flows back into combustion chamber, another part is discharged by contra-flow heat exchanger, wherein Fresh air passes through contra-flow heat exchanger again and enters combustor, so as to the preheated air in contra-flow heat exchanger;
5. combustion chamber is independent combustion chamber, separately positioned with melting chamber, so that fusing be allowed to neutralize the metal hankered in advance in nothing It is heated in the combustion gas of oxygen or tail gas, reduces the metal oxidation reaction in fusion process to greatest extent.
6. the thermal efficiency of the utility model novel energy-conserving Hearth Furnace melting furnace is promoted to 85% or more, alumina rate is reduced to 0.3% hereinafter, the advantage with energy conservation and reduction production cost, is suitble to popularization and application.
Detailed description of the invention
Fig. 1 is the structural schematic block diagram of the utility model.
Fig. 2 is the part-structure sectional view of the utility model melting chamber.
Fig. 3 is the structural schematic diagram of this specific embodiment preheating chamber.
Drawing reference numeral explanation: 1. combustion chambers;2. molten metal crucible keeps room;21. air inlet;22. gas outlet;3. molten Change room;31. fire grate;311. circular through hole;4. preheating chamber;41. the first preheating chamber;42. the second preheating chamber;40. diversion pipe; 401. first diversion pipes;43. exhaust outlet;402. second diversion pipes;5. molten metal diversion trench;6. contra-flow heat exchanger;7. burning Machine;8. regulating valve;9. blower.
Specific embodiment
The utility model is described in further detail below by specific embodiment combination attached drawing.The application can be with Many different forms are realized, however it is not limited to embodiment described in the present embodiment.Following specific embodiments are provided Purpose is easy for becoming apparent from present disclosure thorough explanation, and wherein the words of the indicating positions such as front, rear, left and right is only Be for shown structure in respective figure for position.
It please refers to shown in Fig. 1-2, the utility model is about a kind of novel energy-conserving Hearth Furnace melting furnace, including combustion chamber 1, gold Belong to liquid crucible and keep room 2, melting chamber 3, preheating chamber 4, passes through channel on the left of the combustion chamber 1 and molten metal crucible keeps room 2 right Side connection, while be also connected to 3 lower end of melting chamber by channel, the setting of melting chamber 3 in 4 lower end of preheating chamber, and with it is pre- The connection of 4 lower end of hot cell, 3 lower end of melting chamber is equipped with the molten metal diversion trench 5 for keeping room 2 to be connected to molten metal crucible, described Fire grate 31 is equipped in melting chamber 3,4 surface of preheating chamber is equipped with several diversion pipes 40, described 40 one end of diversion pipe and preheating chamber 4 Upper end connection, the other end is connected to the lower end of another preheating chamber 4, so that gas forms repetitive sequence between preheating chamber 4 Circulation, 4 upper end of preheating chamber are equipped with exhaust outlet 43, and tail gas is discharged by contra-flow heat exchanger 6 by channel in the exhaust outlet 43, The tail gas of the exhaust outlet 43 also passes through channel and is connected to 1 upper end of combustion chamber, and the contra-flow heat exchanger 6 passes through combustor 7 and combustion It burns room 1 to be connected to, air enters combustor 7 by contra-flow heat exchanger 6.
Further, the molten metal crucible keeps room 2 to be equipped with air inlet 21 and gas outlet 22, in the combustion chamber 1 Gas enters air inlet 21 by channel, and enters melting chamber 3 by gas outlet 22, the air inlet 21 and gas outlet 22 it Between be equipped with connection channel, and be equipped with regulating valve 8.Molten metal crucible can be kept to keep room using combustion gas by above structure Temperature in 2, so that flowing to indoor molten metal by molten metal diversion trench 5 from melting chamber 3 keeps liquid condition.
Further, the preheating chamber 4 includes the first preheating chamber 41 and the second preheating chamber 42, first preheating chamber 41 with Second preheating chamber 42 is set side by side, and the diversion pipe 40 includes the first diversion pipe 401 and the second diversion pipe 402, and described first leads It is connected on the upside of 401 upper end of flow tube and the first preheating chamber 41, lower end is connected to 42 lower end of the second preheating chamber, second diversion pipe It is connected on the upside of 402 upper ends and the second preheating chamber 42, lower end is connected to the first preheating chamber 41.
Using the above scheme, after gas enters on the downside of the first preheating chamber 41, by entering on the upside of the first diversion pipe 401 To 42 downside of the second preheating chamber, then it is discharged in the exhaust outlet 43 by 42 upside of the second preheating chamber;Or gas is pre- from second After the downside in hot cell 42 enters, the downside of the first preheating chamber 41 is entered by the upside of the second diversion pipe 42, then again from the The exhaust outlet 43 of one preheating chamber, 41 upside is discharged.
It please refers to shown in Fig. 3, in the present embodiment, is not limited only to two preheating chambers 4 and two diversion pipes 40, can be Four or six etc..When using four preheating chambers 4 and four diversion pipes 40, the gas after the reaction of melting chamber 3 can enter Into first preheating chamber 4, gas enters 4 downside of the 4th preheating chamber by diversion pipe 40 on the upside of first preheating chamber 4, Then by entering 4 downside of third preheating chamber on the upside of diversion pipe 40, gas passes through water conservancy diversion on the upside of third preheating chamber 4 again Pipe 40 enters second preheating chamber, 4 downside, and tail gas is discharged finally by the exhaust outlet of second 4 upside of preheating chamber, makes to bring about the desired sensation Body repetitive sequence in each preheating chamber 4 recycles, and gas major part heat is recycled, the temperature of tail gas is substantially reduced, Improve the thermal efficiency.In addition, the outlet 43 of each preheating chamber 4 is designed with regulating valve 8, thus control the outlet of preheating chamber 4 It opens or closes, so that gas forms a repetitive sequence between diversion pipe 40 and circulates.
Wherein, the channel of 3 lower end of melting chamber is equipped with regulating valve 8, and 40 upper end of diversion pipe is equipped with regulating valve 8, the channel that tail gas is discharged in the contra-flow heat exchanger 6 is equipped with regulating valve 8.It can be realized control channel to open or close, moreover it is possible to logical It overregulates valve 8 and adjusts the size of control gas circulation, and control the flow direction of gas between each 4 gas of preheating chamber.
Further, the channel of 4 exhaust outlet 43 of the preheating chamber discharge is equipped with blower 9.Pass through 9 Accelerating Removal tail gas of blower Mobility, and reduce temperature, while there is guiding role.
Further, the combustor 7 uses natural gas or fuel burning.
Further, several circular through holes 311 extended vertically through are equipped in the fire grate 31.
The utility model is further described below by specific embodiment.
In the present embodiment, the course of work is as follows: combustor 7 burns generated combustion gas by 1 a part of combustion chamber Room 2 is kept into molten metal crucible, another part enters melting chamber 3, and combustion gas enters preheating chamber 4 after melting chamber 3, and gas exists Preheating chamber 4 is discharged after 40 repetitive sequence of diversion pipe circulation from exhaust outlet 43, the tail gas a part being discharged by exhaust outlet 43 Combustion chamber 1 is flowed back into, tail gas is discharged by contra-flow heat exchanger 6 in another part;Wherein, air by contra-flow heat exchanger 6 preheating after, It is combustion-supporting into combustor 7.
The present embodiment melting furnace using combustion chamber gases heat keep molten metal crucible keep room 2 temperature, more added with The utilization resource of effect, while also reaching energy-saving effect;It is equipped with fire grate 31 in melting chamber 3, changes traditional reflective heat transfer, so that Combustion gas penetrates and melts metal from 31 hole of fire grate, and 15% thermal efficiency can be improved;It is connected with diversion pipe 40 between preheating chamber 4, leads to Crossing diversion pipe 40 makes gas between preheating chamber 4 after repetitive sequence circulation, then is discharged by exhaust outlet 43, can be melting chamber 3 exhaust temperature be reduced to from 1200 DEG C 300 DEG C hereinafter, and improve can be with 30% or more the thermal efficiency, it can 45% heat Improved efficiency is to 75% or more;Tail gas a part that preheating chamber 4 is discharged flows back into combustion chamber 1, and another part passes through contra-flow heat exchanger 6 discharges, wherein fresh air passes through contra-flow heat exchanger 6 again and enters combustor 7, empty so as to preheat in contra-flow heat exchanger 6 Gas;The thermal efficiency of the utility model novel energy-conserving Hearth Furnace melting furnace is promoted to 85% or more by traditional 45% or so, alumina Rate is reduced to 0.3% hereinafter, the advantage with energy conservation and reduction production cost, is very suitable to promote and apply by traditional 1.5%.
Embodiment of above is only that preferred embodiments of the present invention are described, not to the utility model Range be defined, under the premise of not departing from the spirit of the design of the utility model, this field ordinary engineering and technical personnel to this The various changes and improvements that the technical solution of utility model is made should all fall into the guarantor that claims of the utility model determine It protects in range.

Claims (10)

1. a kind of novel energy-conserving Hearth Furnace melting furnace, including combustion chamber, molten metal crucible keep room, melting chamber, preheating chamber, described It keeps being connected on the right side of room with molten metal crucible by channel on the left of combustion chamber, while being also connected to by channel with melting chamber lower end, The melting chamber setting is connected in preheating chamber lower end, and with preheating chamber lower end, it is characterised in that: the melting chamber lower end is equipped with The molten metal diversion trench for keeping room to be connected to molten metal crucible, the melting chamber is interior to be equipped with fire grate, and the preheating chamber surface is equipped with Several diversion pipes, described diversion pipe one end are connected to the upper end of preheating chamber, and the other end is connected to the lower end of another preheating chamber, is made It obtains gas and forms repetitive sequence circulation between preheating chamber, the preheating chamber upper end is equipped with exhaust outlet, and the exhaust outlet passes through logical Tail gas is discharged by contra-flow heat exchanger in road, and the tail gas of the exhaust outlet also passes through channel and is connected to combustion chamber upper end, the adverse current Heat exchanger enters combustor by contra-flow heat exchanger by combustor and combustion chamber, air.
2. novel energy-conserving Hearth Furnace melting furnace according to claim 1, it is characterised in that: the molten metal crucible keeps room Equipped with air inlet and air outlet, the indoor gas of burning enters air inlet by channel, and is entered by gas outlet and melted Change room, the channel being connected to is equipped between the air inlet and gas outlet, and be equipped with regulating valve.
3. novel energy-conserving Hearth Furnace melting furnace according to claim 1, it is characterised in that: the preheating chamber includes first pre- Hot cell and the second preheating chamber, first preheating chamber are set side by side with the second preheating chamber, and the diversion pipe includes the first diversion pipe With the second diversion pipe, it is connected on the upside of first diversion pipe upper end and the first preheating chamber, lower end is connected to the second preheating chamber lower end, It is connected on the upside of second diversion pipe upper end and the second preheating chamber, lower end is connected to the first preheating chamber.
4. novel energy-conserving Hearth Furnace melting furnace according to claim 3, it is characterised in that: the diversion pipe upper end is equipped with The channel of regulating valve, the melting chamber lower end is equipped with regulating valve.
5. novel energy-conserving Hearth Furnace melting furnace according to claim 1, it is characterised in that: the combustion chamber is independent burning Room, it is separately positioned with melting chamber.
6. novel energy-conserving Hearth Furnace melting furnace according to claim 1, it is characterised in that: the diversion pipe upper end is equipped with Regulating valve.
7. novel energy-conserving Hearth Furnace melting furnace according to claim 1, it is characterised in that: tail is discharged in the contra-flow heat exchanger The channel of gas is equipped with regulating valve.
8. novel energy-conserving Hearth Furnace melting furnace according to claim 1, it is characterised in that: the preheating chamber exhaust outlet discharge Channel be equipped with blower.
9. novel energy-conserving Hearth Furnace melting furnace according to claim 1, it is characterised in that: the combustor uses natural gas Or fuel burning.
10. novel energy-conserving Hearth Furnace melting furnace according to claim 1, it is characterised in that: be equipped in the fire grate several The circular through hole extended vertically through.
CN201821181230.2U 2018-07-23 2018-07-23 Novel energy-conserving Hearth Furnace melting furnace Active CN208505005U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821181230.2U CN208505005U (en) 2018-07-23 2018-07-23 Novel energy-conserving Hearth Furnace melting furnace

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Application Number Priority Date Filing Date Title
CN201821181230.2U CN208505005U (en) 2018-07-23 2018-07-23 Novel energy-conserving Hearth Furnace melting furnace

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109974449A (en) * 2019-03-29 2019-07-05 河南恒通新材料有限公司 Novel smelting device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109974449A (en) * 2019-03-29 2019-07-05 河南恒通新材料有限公司 Novel smelting device

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