CN207035818U - A kind of new Isa furnace - Google Patents

A kind of new Isa furnace Download PDF

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Publication number
CN207035818U
CN207035818U CN201720528775.5U CN201720528775U CN207035818U CN 207035818 U CN207035818 U CN 207035818U CN 201720528775 U CN201720528775 U CN 201720528775U CN 207035818 U CN207035818 U CN 207035818U
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China
Prior art keywords
heater
splash
air
communication channel
isa furnace
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CN201720528775.5U
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Chinese (zh)
Inventor
张辉
李云
李汝云
施建雄
范永亮
赵璧
葸军
曹斌
黄荣军
张健荣
王昌会
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LIANGSHAN MINING CO Ltd
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LIANGSHAN MINING CO Ltd
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Priority to CN201720528775.5U priority Critical patent/CN207035818U/en
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Abstract

The utility model discloses a kind of new Isa furnace, the blanking device and splash-back being related in a kind of smelting equipment, including body of heater, body of heater;The splash-back is arranged on the middle part of body of heater, body of heater is formed the chamber of two connections, and the height of blanking device discharge end is less than the height of splash-back;Air communication channel and the air outlet connected with air communication channel are offered in the plate body of the splash-back, and air outlet is passed in body of heater, the both ends of air communication channel are respectively connected with ajutage.The utility model can not only effectively prevent from corroding body of heater because fuel dust is attached on inboard wall of furnace body, so as to improve the service life of body of heater;It can effectively prevent the fuel dust in body of heater to be drained into powder in air by smokejack because of the heat wave in body of heater simultaneously, reduce the pollution to air.

Description

A kind of new Isa furnace
Technical field
A kind of smelting equipment is the utility model is related to, in particular to a kind of new Isa furnace.
Background technology
The smelting process of copper mainly has two methods of pyrometallurgical smelting and hydrometallurgy, in the world mainly using pyrometallurgical smelting Method, the copper yield produced with the method account for the 85% of world's copper total output.The advanced technologies of copper smelting by pyrometallurgy are broadly divided at present Two major classes:Flash smelting and bath smelting.Its core Principle of Melting of bath smelting is:Raw material is entered in Isa furnace, oxygen-enriched sky Gas and fine coal are as fuel, and the spray gun being immersed in by furnace roof in molten bath makes to enter molten condition in body of heater, so as to increase in stove Metallurgical power reacts, and completes to smelt operation.It smelts the combustion-supporting and strong reduction that key is high pressure, high speed oxygen-enriched air and fine coal Effect, vortical flow is formed by lance ejection and entered in stove, vortical flow strong agitation in the molten bath of molten condition, and with Material reacts rapidly in input Isa furnace, is melted rapidly in molten bath, and is conducted heat, mass transfer, forms violent metallurgical reaction;By force Strong agitation, increase reduction contact surface, increase thing phase solid-solid, solid-liquid, gas-solid, solution-air faying face, promotes furnace reduction Replace metallurgical reaction.
But in fusion process, because exhaust gas volumn is larger, gathered dust to ensure that flue gas can smoothly pass over flue and enter System, it is desirable to which dust collecting fan increases rotating speed;Therefore higher negative pressure state is chronically in Isa furnace, excessive blower fan draft, Add dust content;In the prior art in order to control Chinese mugwort Sa dust content, except before raw material enters stove first to raw material Pelletized, while second-time burning wind is passed through at slag case mouth and insulation burner, secondary combustion is carried out to the granular material in stove Burn.If wanting to ensure that there is sufficient oxygen to be burnt for granular material in stove internal upper part space, must be passed through enough Second-time burning wind.If but second-time burning air quantity in body of heater it is excessive when, second-time burning wind can form local cooling in stove Environment, the efficiency of combustion of granular material is not only reduced, and more slagging is internally formed in Isa furnace, hinder flue gas Circulation so that partial fume escapes from feed opening, gun hole, have impact on the operating environment at scene, compromises employee's life and health, Cause environmental pollution.
Utility model content
The purpose of this utility model is to provide a kind of new Isa furnace, to solve the above problems.
To realize the utility model purpose, the technical scheme used for:A kind of new Isa furnace, including body of heater, in body of heater Blanking device and splash-back;The splash-back is arranged on the middle part of body of heater, body of heater is formed the chamber of two connections, and blanking The height of device discharge end is less than the height of splash-back;Air communication channel and and air are offered in the plate body of the splash-back The air outlet of circulation passage connection, and air outlet is passed in body of heater, the both ends of air communication channel are all connected with being provided with ajutage.
Further, multiple cooling ducts, and the both ends of multiple cooling ducts point are offered in the plate body of the splash-back Water inlet pipe and outlet pipe are not connected with it.
Further, the water inlet end of multiple water inlet pipes is connected with cistern jointly, and multiple outlet pipes go out Water end (W.E.) is connected with recovery tank jointly.
Further, in addition to compression fan, the output end of compression fan are connected with mixed oxygen device, and air communication channel two The ajutage at end is connected with mixed oxygen device jointly.
Further, it is all connected with being provided with subtube between the ajutage and multiple water inlet pipes, and on multiple subtubes It is provided with hand-operated valve.
Further, the blanking device includes the feed hopper above body of heater and is connected with feed hopper discharging opening Tremie pipe, and the height of tremie pipe discharging opening be less than splash-back height.
Further, it is additionally provided with smokejack at the top of the body of heater.
The beneficial effects of the utility model are,
1. by setting splash-back at the middle part of body of heater, body of heater is set to form two connecting chambers, splash-back can be prevented effectively Fuel dust in body of heater enters the top of body of heater, can not only effectively prevent because fuel dust be attached to it is on inboard wall of furnace body and right Body of heater is corroded, so as to improve the service life of body of heater;It can effectively prevent the fuel dust in body of heater because in body of heater simultaneously Heat wave and powder is drained into air by smokejack, reduce the pollution to air.
2. the dust that can make to enter in fuel and fuel in body of heater by splash-back can be filled in bottom of furnace body The burning divided, reduces the waste of fuel, reduces the cost of fuel.
3. air communication channel and air outlet by being opened up on splash-back, can be quickly to filling into oxygen-enriched sky in body of heater Gas, the oxygen-enriched air entered in body of heater are advantageous to fuel dust and sufficiently burnt in body of heater, reduce fuel dust in flue gas Content, reduce the pollution to air.
4. making by air communication channel and air outlet after filling into oxygen-enriched air in body of heater, body of heater inner second air amount is reduced Fill into, can effectively prevent from taking away furnace heat because secondary air flow fills into;Fuel dust large area slagging in stove is avoided simultaneously, It ensure that the circulation of flue gas is smooth, reduce and escape flue gas.
5. significantly being lifted by the efficiency of combustion of Isa furnace fuel dust, make fuel in the appropriate reduction of granulation process The amount of water of raw material, heat consumption unnecessary in Isa furnace is reduced, increase discharge quantity.
6., can be fast and effectively to anti-by the cooling medium in cooling duct by setting cooling duct in splash-back Splash plate to be cooled, prevent splash-back from being deformed because stove body temperature is too high, improve the service life of splash-back.
Brief description of the drawings
Fig. 1 is the structure chart of new Isa furnace provided by the utility model;
Fig. 2 is the structure chart of splash-back in Fig. 1;
Mark and corresponding parts title in accompanying drawing:
1st, body of heater, 2, splash-back, 3, blanking device, 3a, feed hopper, 3b, tremie pipe, 4, air communication channel, 5, air-out Mouthful, 6, ajutage, 7, cooling duct, 8, water inlet pipe, 9, outlet pipe, 10, cistern, 11, recovery tank, 12, compression fan, 13, Mixed oxygen device, 14, subtube, 15, smokejack.
Embodiment
The utility model is described in further detail below by specific examples of the implementation and with reference to accompanying drawing.
The shown a kind of new Isa furnace provided by the utility model of Fig. 1, Fig. 2, including body of heater 1, the blanking in body of heater 1 Device 3 and splash-back 2;The splash-back 2 is arranged on the middle part of body of heater 1, body of heater 1 is formed the chamber of two connections, and blanking The height of the discharge end of device 3 is less than the height of splash-back 2, and splash-back 2 is shaped as circular, rectangle or polygon, specifically, anti- Splashing the shape of plate 2 can be set according to the shape of body of heater 1.Splash-back 2 is directly welded and fixed with the inwall of body of heater 1, while splash-back 2 Directly it can be welded and fixed with blanking device 3, and splash-back 2 is located at the installation position of the side, specially splash-back 2 of blanking device 3 Put the same side for being located at blanking device 3 with the installation site of the smokejack 5 on body of heater 1;Offered in the plate body of the splash-back 2 Air communication channel 4 and the air outlet 5 connected with air communication channel 4, and air outlet 5 is passed in body of heater 1, air communication channel 4 both ends are all connected with being provided with ajutage 6, and the other end of ajutage 6 stretches out through body of heater 1, made by ajutage 6 oxygen-enriched Air is entered in the air communication channel 4 on splash-back 2, and enters body of heater 1 finally by the air outlet 5 on splash-back 2 It is interior, the fuel in body of heater 1 and fuel dust is sufficiently burnt.
Multiple cooling ducts 7, specially cooling duct 7 at least two, and more are offered in the plate body of the splash-back 2 Individual cooling duct 7 is uniformly arranged on splash-back 2, and the both ends of multiple cooling ducts 7 are connected with water inlet pipe 8 and gone out respectively Water pipe 9, cooling water is set to be flowed in splash-back 2 by water inlet pipe 8 and outlet pipe 9, so that splash-back 2 can be rapidly performed by dropping Temperature, prevent splash-back 2 from being deformed because temperature is too high, improve the service life of splash-back 2.The water inlet of multiple water inlet pipes 8 End is connected with cistern 10 jointly, and the water side of multiple outlet pipes 9 is connected with recovery tank 11 jointly, makes to splash-back 2 Caused hot water is entered in recovery tank 11 and reclaimed after being cooled down, so as to reduce the waste of water.
The utility model also includes compression fan 12, and the output end of compression fan 12 is connected with mixed oxygen device 13, and air stream The ajutage 6 at the both ends of circulation passage 4 is connected with mixed oxygen device 13 jointly, oxygen-enriched air is entered directly into body of heater 1 by ajutage 6 It is interior, so that full combustion of fuel.It is all connected with being provided with subtube 14 between the ajutage 6 and multiple water inlet pipes 8, and it is multiple Hand-operated valve is provided with subtube 14, when the cooling water deficiency in cistern 10 makes, will directly can be pressed by compression fan 12 Contracting wind is passed into splash-back 2, and logical overcooled compression wind energy effectively cools down to splash-back 2, prevents the cooling of splash-back 2 Interrupt.
The blanking device 3 includes what is be located at the feed hopper 3a of the top of body of heater 1 and be connected with feed hopper 3a discharging openings Tremie pipe 3b, and the height of tremie pipe 3b discharging openings is less than the height of splash-back 2, fuel can be introduced into feed hopper 3a, enter Fuel in hopper 3a is dropped in body of heater 1 by tremie pipe 3b, can effectively be prevented by increasing tremie pipe 3b on feed hopper 3a Only the fuel dust in body of heater 1 and flue dust discharge fuel dust from feed hopper 3a because of the heat wave of body of heater 1, prevent fuel dust and Flue dust is diffused into air, reduces the pollution of air.The top of body of heater 1 is additionally provided with smokejack 15, and smokejack 15 is used for Flue dust in body of heater 1 is discharged.
Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for this For the technical staff in field, the utility model can have various modifications and variations.It is all in the spirit and principles of the utility model Within, any modification, equivalent substitution and improvements made etc., it should be included within the scope of protection of the utility model.

Claims (7)

1. a kind of new Isa furnace, it is characterised in that including the blanking device and splash-back in body of heater, body of heater;The splash-back Installed in the middle part of body of heater, body of heater is set to form the chamber of two connections, and the height of blanking device discharge end is less than splash-back Highly;Air communication channel and the air outlet connected with air communication channel, and air-out are offered in the plate body of the splash-back Mouth is passed in body of heater, and the both ends of air communication channel are respectively connected with ajutage.
2. new Isa furnace according to claim 1, it is characterised in that offered in the plate body of the splash-back multiple cold But passage, and the both ends of multiple cooling ducts are connected with water inlet pipe and outlet pipe respectively.
3. new Isa furnace according to claim 2, it is characterised in that the water inlet end of multiple water inlet pipes connects jointly There is cistern, and the water side of multiple outlet pipes is connected with recovery tank jointly.
4. new Isa furnace according to claim 1, it is characterised in that also including compression fan, the output of compression fan End is connected with mixed oxygen device, and the ajutage at air communication channel both ends is connected with mixed oxygen device jointly.
5. new Isa furnace according to claim 2, it is characterised in that connect between the ajutage and multiple water inlet pipes Connect and be provided with subtube, and hand-operated valve is provided with multiple subtubes.
6. new Isa furnace according to claim 1, it is characterised in that the blanking device is included above body of heater Feed hopper and the tremie pipe being connected with feed hopper discharging opening, and the height of tremie pipe discharging opening is less than the height of splash-back.
7. new Isa furnace according to claim 1, it is characterised in that be additionally provided with smokejack at the top of the body of heater.
CN201720528775.5U 2017-05-12 2017-05-12 A kind of new Isa furnace Active CN207035818U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720528775.5U CN207035818U (en) 2017-05-12 2017-05-12 A kind of new Isa furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720528775.5U CN207035818U (en) 2017-05-12 2017-05-12 A kind of new Isa furnace

Publications (1)

Publication Number Publication Date
CN207035818U true CN207035818U (en) 2018-02-23

Family

ID=61478945

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720528775.5U Active CN207035818U (en) 2017-05-12 2017-05-12 A kind of new Isa furnace

Country Status (1)

Country Link
CN (1) CN207035818U (en)

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