CN104848682A - Smelting furnace of molten bath - Google Patents
Smelting furnace of molten bath Download PDFInfo
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- CN104848682A CN104848682A CN201510236038.3A CN201510236038A CN104848682A CN 104848682 A CN104848682 A CN 104848682A CN 201510236038 A CN201510236038 A CN 201510236038A CN 104848682 A CN104848682 A CN 104848682A
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- spray gun
- smelting furnace
- heater
- bath smelting
- furnace chamber
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Abstract
The invention discloses a smelting furnace of a molten bath. The smelting furnace of the molten bath comprises a furnace body and a plurality of spray guns, wherein a furnace chamber is arranged in the furnace body and is provided with a circular cross section, the side wall of the furnace body is provided with a plurality of spray gun insertion holes which are peripherally formed along the furnace body at intervals, and the plurality of spray guns are inserted into the spray gun insertion holes and are deviated from the center of a circle of the circular cross section of the hearth in the same direction. The smelting furnace of the molten bath provided by the invention has the advantages of low energy consumption and good smelting effect.
Description
Technical field
The present invention relates to a kind of nonferrous metallurgical equipment, relate to a kind of bath smelting furnace particularly.
Background technology
It is that the material joined in stove from charge door easily swims in melt top layer that bath smelting metallurgical furnace in correlation technique exists a commonplace problem, fully cannot participate in melt tank reaction, affect production efficiency, sometimes even can not normally produce.Such as, in the side-blown melting technique in correlation technique, side-blown spray gun is jetted towards the center of body of heater, jets to produce certain mixing effect to melt in stove, but the material that top adds easily swims in bath surface, is difficult to enter melt and fully participates in reaction.Although the top blow smelting technology in correlation technique can stir molten bath, but it is too violent that the operation principle of top-blown spray gun makes melt seethe up and down in stove, in order to avoid splash top blast stove must increase body of heater height, thus cause body of heater constructional difficulties, improve the cost of body of heater, spray gun.
Summary of the invention
The present invention is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, the present invention proposes a kind of bath smelting furnace, and this bath smelting furnace has the advantage that energy consumption is low, Smelting Effect is good.
According to the bath smelting furnace of the embodiment of the present invention, comprising: body of heater, have furnace chamber in described body of heater, described furnace chamber has circular cross section, and the sidewall of described body of heater is provided with along the circumference of described body of heater multiple spray gun jacks spaced apart; Multiple spray gun, described spray gun is inserted in described spray gun jack and multiple described spray gun departs from the center of circle of the circular cross section of described furnace chamber in the same direction.
According to the bath smelting furnace of the embodiment of the present invention, tool has the following advantages: the center of circle of 1) departing from the circular cross section of furnace chamber due to multiple spray gun in the same direction, therefore, it is possible to make to produce certain limit in furnace chamber to horizontally rotate region, thus make the melt composition eddy motion in furnace chamber, the material added can be involved in melt rapidly, and fully participate in reaction, energy consumption is low, Smelting Effect is good, can improve the disposal ability of body of heater.2) compared with side-blown converter, multiple spray gun all points to the central area of furnace chamber, can produce higher temperature, be conducive to material and melt rapidly, greatly improve specific capacity at furnace chamber center.3) compared with side-blown converter, the cross section of furnace chamber is formed as circular, the stress ratio that in furnace chamber, refractory brick bears can be made comparatively even, greatly avoid arch brick, fall brick phenomenon, substantially prolongs body of heater effective time and service life.4) compared with top blast stove, multiple spray gun dispersion winding-up can avoid melt in furnace chamber to produce too violent seething, and prevents splash, and is conducive to reducing body of heater height, reduce body of heater and build difficulty and construction cost.
In some embodiments of the invention, to depart from the angle in the center of circle of the circular cross section of described furnace chamber identical for the blowing direction of multiple described spray gun.
In a particular embodiment of the present invention, the angle between the center of circle of the winding-up end of described spray gun and the circular cross section of described furnace chamber between line and the blowing direction of this spray gun is in the scope of 5-60 degree.
Alternatively, described angle is 15 degree.
Preferably, described angle is adjustable.
Preferably, described multiple spray gun is evenly arranged along the circumference of described furnace chamber.
According to some embodiments of the present invention, described spray gun dips down relative to horizontal direction and tiltedly arranges.
In a preferred embodiment of the invention, the bottom surface of described furnace chamber is segment-shaped.
In some embodiments of the invention, described body of heater comprises roof, sidewall and is positioned at the cupola well of bottom, and the flame retardant coating of described sidewall and described cupola well is magnesite-chrome brick layer, and the flame retardant coating of described roof is the refractory steel fiber ramming bed of material or described roof is membrane wall.
Further, the outside of the flame retardant coating of described sidewall is provided with Copper Water Jacket.
Bath smelting furnace fuel tolerance according to the present invention is strong.Bath smelting furnace spray gun of the present invention can adopt natural gas, producer gas, fine coal or heavy oil to be fuel, and combustion-supporting gas is oxygen enrichment.
Accompanying drawing explanation
Fig. 1 is the axial cross-sectional schematic of the bath smelting furnace according to the embodiment of the present invention.
Fig. 2 is the cross sectional representation of the bath smelting furnace according to the embodiment of the present invention.
Reference numeral:
Bath smelting furnace 100, body of heater 1, furnace chamber 10, roof 11, sidewall 12, cupola well 13, siphon lead taphole 14, slag notch 15, charge door 16, exhanst gas outlet 17, insulation burner mouth 18, visit cinder notch 19,
Spray gun 2, Copper Water Jacket 3, skirt 4, body of heater basis 5, pre-embedded bolt 6.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In describing the invention, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection or each other can communication; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
The bath smelting furnace 100 according to the embodiment of the present invention is described in detail below with reference to Fig. 1 and Fig. 2, wherein this bath smelting furnace 100 may be used for processing the sulphide ore of plumbous or zinc, lead or the oxide ore of zinc, low-grade lead-zinc and jamesonite, the leaded assorted material of secondary and secondary and expects containing zinc is assorted, wherein the leaded assorted material of secondary can be lead skim, lead plaster etc., and secondary mixes material containing zinc can for zinc leaching residue etc.
According to the bath smelting furnace 100 of the embodiment of the present invention, comprising: body of heater 1 and multiple spray gun 2, wherein have furnace chamber 10 in body of heater 1, furnace chamber 10 has circular cross section, when bath smelting furnace 100 works, is contained with melt to form molten bath in furnace chamber 10.
The sidewall 12 of body of heater 1 is provided with along the circumference of body of heater 1 multiple spray gun jacks spaced apart.Particularly, body of heater 1 comprises roof 11, sidewall 12 and is positioned at the cupola well 13 of diapire, and cupola well 13 and the sidewall 12 of body of heater 1 have flame retardant coating respectively, and flame retardant coating can be piled up by refractory brick and form.Thus being formed as circular due to the cross section of furnace chamber 10, body of heater 1 expands when being heated evenly, does not have area of stress concentration, can avoid occurring falling brick phenomenon, the stability of raising body of heater 1, the normal use of guarantee bath smelting furnace 100.
In concrete example of the present invention, the sidewall 12 of body of heater 1 and the flame retardant coating of cupola well 13 are magnesite-chrome brick layer, and the flame retardant coating of the roof 11 of body of heater 1 is the refractory steel fiber ramming bed of material or roof 11 is membrane wall.
Spray gun 2 is inserted in spray gun jack and multiple spray gun 2 departs from the center of circle of the circular cross section of furnace chamber 10 in the same direction.Preferably, multiple spray gun 2 is evenly arranged along the circumference of furnace chamber 10.The center of circle that wherein each spray gun 2 departs from the circular cross section of furnace chamber 10 refers between line L1 between the center of circle of the winding-up end of spray gun 2 and the circular cross section of the furnace chamber 10 and emission direction A of spray gun 2 has angle theta, in other words, the emission direction of each spray gun 2 departs from the center of circle of the circular cross section of furnace chamber 10, and each spray gun 2 sprays medium with the direction that the center of circle of the circular cross section with furnace chamber 10 is angled.The center of circle that the multiple spray guns 2 simultaneously described in the present invention depart from the circular cross section of furnace chamber 10 in the same direction refers to multiple spray gun 2 and to depart from along clockwise direction or multiple spray gun 2 departs from the counterclockwise direction.
Be understandable that, body of heater 1 is also provided with charge door 16, slag notch 15 and exhanst gas outlet 17, charge door 16 and exhanst gas outlet 17 can be located on the roof 11 of body of heater 1, slag notch 15 can be located on the sidewall 12 of body of heater 1, the leaded assorted material of secondary and secondary can join in furnace chamber 10 from charge door 16 containing materials such as the assorted material of zinc, the slag charge that reaction generates is discharged from slag notch 15, and the flue gas that reaction generates is discharged from exhanst gas outlet 17.Wherein when bath smelting furnace 100 assorted material leaded for the treatment of secondary, body of heater 1 also should be provided with the discharge port 14 for discharging metal or sulfonium; When bath smelting furnace 100 material assorted containing zinc for the treatment of secondary, there is no Metal Phase owing to only having slag phase in ordinary circumstance lower furnace chamber 10, therefore on body of heater 1 without the need to arranging discharge port 14.
In concrete example of the present invention, the height of body of heater 1 is about 4 ~ 15m, and the internal diameter of furnace chamber 10 is 1 ~ 8m, and each spray gun 2 is immersed in 0.5 ~ 1.5m under molten bath, and each spray gun 2 is 1 ~ 2m with the distance of furnace bottom.
According to the bath smelting furnace 100 of the embodiment of the present invention, tool has the following advantages:
1) because multiple spray gun 2 departs from the center of circle of the circular cross section of furnace chamber 10 in the same direction, therefore, it is possible to make to produce certain limit in furnace chamber 10 to horizontally rotate region, thus make the melt composition eddy motion in furnace chamber 10, the material added can be involved in melt rapidly, abundant participation reaction, energy consumption is low, and Smelting Effect is good, can improve the disposal ability of body of heater 1.
2) compared with side-blown converter, multiple spray gun 2 all points to the central area of furnace chamber 10, higher temperature can be produced at furnace chamber 10 center, be conducive to material to melt rapidly, greatly improve specific capacity, wherein specific capacity refers to every square meter hearth area and processes how many tons of materials every day, general side-blown converter 25 tons of/day square meters, and the bath smelting furnace 100 in the present invention can reach 25 ~ 80 tons of/day square meters.
3) compared with side-blown converter, the cross section of furnace chamber 10 is formed as circular, the stress ratio that in furnace chamber 10, refractory brick bears can be made comparatively even, greatly avoid arch brick, fall brick phenomenon, substantially prolongs body of heater 1 effective time and service life.
4) compared with top blast stove, multiple spray gun 2 disperses winding-up that melt in furnace chamber 10 can be avoided to produce too violent seething, and prevents splash, and is conducive to reducing body of heater 1 height, reduces body of heater 1 and builds difficulty and construction cost.
According to some embodiments of the present invention, the angle that the blowing direction of multiple spray gun 2 departs from the center of circle of the circular cross section of furnace chamber 10 is identical.Thus ensure that the melt in furnace chamber 10 can form eddy motion further.Particularly, the angle theta between the center of circle of the winding-up end of spray gun 2 and the circular cross section of furnace chamber 10 between line L1 and the blowing direction A of this spray gun 2 is in the scope of 5-60 degree.Preferably, angle theta is 15 degree.
In some embodiments of the invention, angle theta is adjustable.That is, the deflection angle of each spray gun 2 is adjustable.Wherein by the angle of change spray gun jack and the deflection angle of each spray gun 2 of adjustable.Particularly, each spray gun jack can be located on one block of insulating brick, and the insulating brick being provided with spray gun jack is called muzzle brick, in actual production process, if need the deflection angle adjusting spray gun 2, only needs the muzzle brick changing relevant position.Thus due to angle adjustable, according to the change of the purposes of body of heater 1 or material change adjustment winding-up angle, body of heater 1 can be run under optimum running parameter, adds the scope of application and the production chains of body of heater 1.
As shown in Figure 2, according to a particular embodiment of the invention, each spray gun 2 dips down relative to horizontal direction and tiltedly arranges.That is, each spray gun jack downward-sloping extension on direction from outside to inside.Thus by making the downward-sloping setting of each spray gun 2, certain effect of seething up and down can also be caused, be conducive to melt in furnace chamber 10 and react more fast, fully, the disposal ability of body of heater 1 can be improved further.
In some embodiments of the invention, as shown in Figure 2, the bottom surface of furnace chamber 10 is segment-shaped.That is, the bottom surface of furnace chamber 10 is formed as recessed segment-shaped downwards.Thus the stress ratio that the furnace bottom of segment-shaped makes refractory brick in stove bear is comparatively even, greatly avoids arch brick, falls brick phenomenon, substantially prolongs body of heater 1 effective time and service life.
As depicted in figs. 1 and 2, according to some embodiments of the present invention, the outside of the flame retardant coating of sidewall 12 is provided with Copper Water Jacket 3.By being provided with Copper Water Jacket 3, the temperature of the flame retardant coating of the sidewall 12 of body of heater 1 can be reduced, extending the service life of the flame retardant coating of the sidewall 12 of body of heater 1, thus extend the service life of body of heater 1.
In the figure 2 example, body of heater 1 also comprises skirt 4 and body of heater basis 5, and skirt 4 is connected with the pre-embedded bolt 6 on body of heater basis 5, and body of heater 1 is fixed on skirt 4, thus when effectively can prevent bath smelting body of heater 1 displacement and rock.
As shown in Figure 2, the roof 11 of body of heater 1 is also provided with and visits cinder notch 19 and insulation burner mouth 18, visiting cinder notch 19 is thief hatch, and insulation burner mouth 18 is for installing insulation burner.
Strong according to the bath smelting furnace fuel tolerance of any embodiment of the present invention.Bath smelting furnace spray gun of the present invention can adopt natural gas, producer gas, fine coal or heavy oil to be fuel, and combustion-supporting gas is oxygen enrichment.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this description or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (11)
1. a bath smelting furnace, is characterized in that, comprising:
Body of heater, has furnace chamber in described body of heater, and described furnace chamber has circular cross section, and the sidewall of described body of heater is provided with along the circumference of described body of heater multiple spray gun jacks spaced apart;
Multiple spray gun, described spray gun is inserted in described spray gun jack and multiple described spray gun departs from the center of circle of the circular cross section of described furnace chamber in the same direction.
2. bath smelting furnace according to claim 1, is characterized in that, the angle that the blowing direction of multiple described spray gun departs from the center of circle of the circular cross section of described furnace chamber is identical.
3. bath smelting furnace according to claim 1, is characterized in that, the angle between the center of circle of the winding-up end of described spray gun and the circular cross section of described furnace chamber between line and the blowing direction of this spray gun is in the scope of 5-60 degree.
4. bath smelting furnace according to claim 3, is characterized in that, described angle is 15 degree.
5. bath smelting furnace according to claim 3, is characterized in that, described angle is adjustable.
6. bath smelting furnace according to claim 1, is characterized in that, described multiple spray gun is evenly arranged along the circumference of described furnace chamber.
7. bath smelting furnace according to claim 1, is characterized in that, described spray gun dips down relative to horizontal direction and tiltedly arranges.
8. bath smelting furnace according to claim 1, is characterized in that, the bottom surface of described furnace chamber is segment-shaped.
9. bath smelting furnace according to claim 1, it is characterized in that, described body of heater comprises roof, sidewall and is positioned at the cupola well of bottom, and the flame retardant coating of described sidewall and described cupola well is magnesite-chrome brick layer, and the flame retardant coating of described roof is the refractory steel fiber ramming bed of material or described roof is membrane wall.
10. bath smelting furnace according to claim 9, is characterized in that, the outside of the flame retardant coating of described sidewall is provided with Copper Water Jacket.
11. bath smelting furnaces according to claim 1, is characterized in that, the fuel/reducing agent of described spray gun winding-up is at least one of natural gas, producer gas, fine coal or heavy oil, and the combustion-supporting gas of winding-up is oxygen enrichment.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108179280A (en) * | 2018-02-22 | 2018-06-19 | 中国恩菲工程技术有限公司 | Side-blown smelting furnace |
| CN108929930A (en) * | 2017-05-27 | 2018-12-04 | 北京闪铁科技有限公司 | Pool side blowing iron furnace |
| CN110106366A (en) * | 2019-05-20 | 2019-08-09 | 海安海太铸造有限公司 | A kind of efficient side-blown smelting furnace |
| CN110145936A (en) * | 2019-05-20 | 2019-08-20 | 海安海太铸造有限公司 | A kind of smelting furnace |
| CN111964471A (en) * | 2020-07-24 | 2020-11-20 | 北京科技大学 | Efficient injection method for side-blown smelting furnace |
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| CN110106366A (en) * | 2019-05-20 | 2019-08-09 | 海安海太铸造有限公司 | A kind of efficient side-blown smelting furnace |
| CN110145936A (en) * | 2019-05-20 | 2019-08-20 | 海安海太铸造有限公司 | A kind of smelting furnace |
| CN111964471A (en) * | 2020-07-24 | 2020-11-20 | 北京科技大学 | Efficient injection method for side-blown smelting furnace |
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| CN104848682B (en) | 2018-04-13 |
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