CN102735052B - Melting unit - Google Patents
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- CN102735052B CN102735052B CN201110083252.1A CN201110083252A CN102735052B CN 102735052 B CN102735052 B CN 102735052B CN 201110083252 A CN201110083252 A CN 201110083252A CN 102735052 B CN102735052 B CN 102735052B
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Abstract
The invention discloses a melting unit comprising a melting furnace and a demister, wherein the melting furnace comprises a furnace body, a baffle, and a nozzle, wherein a furnace chamber is limited in the furnace body, the furnace body is provided with a feed opening, a flue gas outlet and a melt discharge opening; and the baffle is arranged in the furnace chamber for dividing the furnace chamber into a melting chamber and a settling chamber; and the nozzle is arranged on the side wall of the melting chamber; the demister comprises a shell, a driving shaft, a blade component and a driving device, wherein an inner cavity is limited in the shell, a smoke inlet is arranged on the bottom of the shell, and a smoke exhaust pipe is arranged on the top end of the shell; the driving shaft is stretched into the inner cavity from the top end of the shell; the blade component is installed on the driving shaft; and the driving device is connected with the driving shaft to drive the driving shaft. The melting unit disclosed by the invention reduces the energy consumption, reduces the pollution and improves the operating environment.
Description
Technical field
The present invention relates to a kind of melting unit, especially relating to a kind of vanadic anhydride melting unit for melting vanadic anhydride pulvis.
Background technology
Vanadium has been widely used as a kind of non-ferrous metal tool.Vanadium extracts from containing vanadium material such as vanadium slag with the form of vanadic anhydride usually.Vanadium slag makes vanadic anhydride tablet through roasting, leaching, drying, decomposition, oxidation and fusing.
Traditionally, extract drying, decomposition in vanadium process, be oxidized and be melted in an equipment and carry out, due to dry, decompose, oxidation is different with the temperature of fusing, therefore carry out causing hear rate high in an equipment.And flue dust (mainly comprising a small amount of vanadic anhydride pulvis and the vanadic anhydride droplet) content in flue gas is many, causes the rate of recovery of vanadium low, the wasting of resources, and seriously polluted, and operating environment is poor.
Summary of the invention
The present invention is intended at least one of solve the problems of the technologies described above.For this reason, one object of the present invention is to propose a kind of melting unit for melting vanadic anhydride pulvis, utilizes this melting unit to melt vanadic anhydride pulvis, hear rate is low, pollutes less, good operational environment.
To achieve these goals, comprise melting furnace and demister according to the melting unit of the embodiment of the present invention, wherein said melting furnace comprises: body of heater, limits furnace chamber in described body of heater, and described body of heater has charge door, exhanst gas outlet and melt outlet; Baffle plate, described baffle plate is arranged on so that described furnace chamber is divided into melting chamber and expansion chamber in described furnace chamber, and the upper end of wherein said baffle plate is connected with the roof of described furnace chamber and the roof of the lower end of described baffle plate and described furnace chamber preset distance apart; And burner, described burner is arranged on the sidewall of described melting chamber; Wherein said demister comprises: housing, limits inner chamber in described housing, and the bottom of described housing is provided with into mouth and the top of described housing is provided with pipe; Driving shaft, described driving shaft extend into described inner chamber from the top of described housing; Blade part, described blade part is arranged on described driving shaft; And drive unit, described drive unit is connected with described driving shaft for driving described driving shaft to rotate.
According to the melting unit of the embodiment of the present invention, for vanadic anhydride pulvis is melted, thus the fusing of vanadic anhydride pulvis and the drying of extracting in vanadium process, decomposition, oxidation are separated, reduce energy consumption, decrease pollution, improve operating environment.And the vanadic anhydride droplet in flue gas can be separated with flue gas, further increase the rate of recovery of vanadium, decrease pollution, improve operating environment.
In addition, melting unit according to the above embodiment of the present invention can also have following additional technical characteristic:
In one embodiment of the invention, described blade part comprises: impeller, and described impeller is arranged on described driving shaft; And blade, described blade is arranged on the lower surface of described impeller.
In one embodiment of the invention, described blade part is multiple, and described multiple blade part is arranged on described driving shaft along the axially spaced of described driving shaft.
In one embodiment of the invention, described impeller is distributed with through hole.
In one embodiment of the invention, described pipe is connected with cold air access tube.
In one embodiment of the invention, described charge door is positioned at the top of described melting chamber, described exhanst gas outlet along the longitudinal direction of described body of heater and described charge door spaced apart, described melt outlet is positioned at one end of the close described exhanst gas outlet of described body of heater.
In one embodiment of the invention, the height of described melting chamber is greater than the height of described expansion chamber.
In one embodiment of the invention, described baffle plate is multiple, longitudinally-spaced so that described expansion chamber is divided into multiple sub-expansion chamber along described body of heater of described multiple baffle plate, wherein said exhanst gas outlet is positioned at apart from the roof of described melting chamber expansion chamber farthest, and is provided with auxiliary burning nozzle on the roof of the sub-expansion chamber adjacent with described melting chamber.
In one embodiment of the invention, the bottom surface of described furnace chamber is downward-sloping gradually along the direction from melting chamber to expansion chamber in the vertical, and the bottom surface of described furnace chamber is provided with the chase extended longitudinally.
In one embodiment of the invention, described baffle plate is heat-resisting steel sheet and plate.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the cross-sectional schematic of the melting furnace of melting unit according to an embodiment of the invention;
Fig. 2 is the sectional view of described melting furnace along the line A-A in Fig. 1;
Fig. 3 is the cross-sectional schematic of the demister of melting unit according to an embodiment of the invention;
Fig. 4 is the schematic diagram of the blade part of demister shown in Fig. 3; With
Fig. 5 is the partial schematic diagram of the impeller of the blade part of demister shown in Fig. 3.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", orientation or the position relationship of the instruction such as " outward " 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.
In describing the invention, it should be noted that, unless otherwise prescribed and limit, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect; Can be directly be connected, also indirectly can be connected by intermediary, for the ordinary skill in the art, the concrete meaning of above-mentioned term can be understood as the case may be.
Below with reference to the accompanying drawings describing the melting unit according to inventive embodiments, according to the melting unit of the embodiment of the present invention for melting vanadic anhydride, therefore, also can be called vanadic anhydride melting unit.Melting furnace 100 and demister 200 is comprised according to the vanadic anhydride melting unit of the embodiment of the present invention.
First, with reference to figure 1 and Fig. 2, the melting furnace 100 according to the vanadic anhydride melting unit of the embodiment of the present invention is described.
According to one embodiment of the invention, vanadic anhydride melting furnace 100 comprises body of heater 101, baffle plate 103, and burner 102.Body of heater 101 such as comprises furnace shell and the refractory material be arranged in furnace shell or heat-resisting steel sheet and plate 1014a.Limit furnace chamber in body of heater 101, body of heater 101 has charge door 1011, exhanst gas outlet 1012 and melt outlet 1013.
Baffle plate 103 is arranged in described furnace chamber so that described furnace chamber is divided into melting chamber R and expansion chamber C, the upper end of baffle plate 103 is connected with the roof of described furnace chamber and the roof of the lower end of baffle plate 103 and described furnace chamber preset distance apart, in other words, the top of melting chamber R and expansion chamber C is separated by baffle plate 103, and melting chamber R is communicated with the bottom of expansion chamber C.
Burner 102 is arranged on the sidewall of melting chamber R, for burner oil in melting chamber R, thus to from charge door 1011, the vanadic anhydride pulvis joined in melting chamber R heats.Burner 102 is preferably coal gas burner.
May be used for by the fusing of vanadic anhydride pulvis to prepare vanadic anhydride tablet according to the vanadic anhydride melting furnace 100 of the embodiment of the present invention, thus the fusing of vanadic anhydride and the drying in vanadium leaching process, decomposition, oxidation are separated, reduce energy consumption.And, owing to the inner chamber of melting furnace be divide into melting chamber R and expansion chamber C by baffle plate 103, being melted in melting chamber R of vanadic anhydride pulvis is carried out, vanadic anhydride after fusing enters expansion chamber C sedimentation, discharge finally by melt outlet 1013, unfused vanadic anhydride pulvis and be contained in vanadic anhydride droplet sedimentation in expansion chamber C of the fusing in flue gas, because this reducing vanadic anhydride pulvis in flue gas that exhanst gas outlet 1012 discharges and the content of vanadic anhydride droplet, improve the rate of recovery of vanadium, reduce pollution, improve operating environment.
In some embodiments of the invention, charge door 1011 is positioned at the top of melting chamber R, exhanst gas outlet 1012 is spaced apart with charge door 1011 along the longitudinal direction (left and right directions in Fig. 1) of body of heater 101, and melt outlet 1013 is arranged in one end (left end of Fig. 1) of the close exhanst gas outlet 1012 of body of heater 101.By by exhanst gas outlet 1012 and the spaced apart setting of charge door 1011, make fusing and sedimentation affect reduction each other, further reduce the content of the vanadic anhydride droplet of vanadic anhydride pulvis in flue gas and fusing.
As illustrated in fig. 1 and 2, preferably, the height of melting chamber R is greater than the height of expansion chamber C, can melt better thus.Burner 102 can be multiple and spaced apart in the vertical direction, such as, show two in fig. 1 and 2, improves the effect of fusing further.
In preferred embodiments more of the present invention, baffle plate 103 is multiple, longitudinally-spaced so that expansion chamber C is divided into multiple sub-expansion chamber along body of heater 101 of multiple baffle plate 103, as shown in Figure 1, in body of heater 101, be provided with two baffle plates 103, thus expansion chamber C be divided into two sub-expansion chamber C1, C2.Exhanst gas outlet 1012 is located at apart from the roof of melting chamber R expansion chamber C2 farthest, and is provided with auxiliary burning nozzle 104 on the roof of the sub-expansion chamber C1 adjacent with melting chamber R.By expansion chamber C is divided into multiple sub-expansion chamber, can carries out Multistage settling, further increase effect of settling, the vanadic anhydride pulvis in reduction flue gas and the content of vanadic anhydride droplet, reduce and pollute, improve operating environment.By arranging auxiliary burning nozzle 104, can the unfused vanadic anhydride pulvis entered in sub-expansion chamber C1 be melted again, improve fusing effect, reduce the amount of vanadic anhydride pulvis in flue gas.
Baffle plate 103 such as can be made up of heat-resisting steel sheet and plate, manufactures simple thus, and it is convenient to change.
As illustrated in fig. 1 and 2, in order to improve the emission effect of the vanadic anhydride of fusing, the bottom surface of furnace chamber is in the vertical along downward-sloping gradually from melting chamber R to the direction of expansion chamber C, and the chase 1014b extended longitudinally can be provided with on the bottom surface of furnace chamber, the left end of chase 1014b is connected with melt outlet 1013, facilitates the discharge of melt (vanadic anhydride of melting).
The demister 200 of vanadic anhydride melting unit is described below with reference to Fig. 3-5.
According to one embodiment of the invention, demister 200 comprises housing 201, driving shaft 202, blade part 203, and drive unit 205.
As shown in Figure 3, limit inner chamber in housing 201, the bottom of housing 201 is provided with into mouth 2012 and the top of housing 201 is provided with pipe 2011.Driving shaft 202 extend into described inner chamber from the top of housing 201.Blade part 203 is arranged on driving shaft 202, and drive unit 205 is connected with driving shaft 202 for driving driving shaft 202 to rotate, thus drives the blade part 203 be installed on driving shaft 202 to rotate.As shown in Figure 3, in an example of the present invention, drive unit 205 is motor, and this motor drives driving shaft 202 by belt transmission.Such as, the axle of motor is provided with the first belt pulley 206, driving shaft 202 is provided with the second belt pulley 208, first belt pulley 206 and is connected by belt 207 with the second belt pulley 208.By adopting belt transmission, motor 205 can be arranged away from driving shaft 202, thus the heat reduced in housing 201 is to the adverse effect of motor.
According to the demister 200 of the embodiment of the present invention, structure is simple, vanadic anhydride melting furnace is connected to during use, the flue gas come from melting furnace enters demister 200, and by colliding with blade part 203, the vanadic anhydride droplet in flue gas falls and turns back in melting furnace, improve the rate of recovery of vanadium, reduce the content of the vanadic anhydride in flue gas, reduce the dust in flue gas, improve environmental-protecting performance.
In one embodiment of the invention, as in Figure 3-5, blade part 203 comprises impeller 2032 and blade 2031, and impeller 2032 is arranged on driving shaft 202, and as in Figure 3-5, impeller 2032 has centre bore 2033, and driving shaft 202 is engaged in centre bore 2033.Blade 2031 is arranged on the lower surface of impeller 2032, and driving shaft 202 drives blade 2031 to rotate by impeller 2032 thus, blade 2031 and smoke collision, and the vanadic anhydride droplet in flue gas is fallen.Preferably, impeller 2032 is distributed with multiple through hole 2034, and through hole 2034 can be distributed on impeller 2032 regularly.More specifically, impeller 2032 is divided into 8 fan sections, the through hole 2034 in each fan section distributes regularly.By forming through hole 2034 on impeller 2032, flue gas can be conducive to and be moved up by through hole 2034.In the example shown in Fig. 3-5, in each through hole 2034, be welded with a bit of siphunculus respectively, foam removal effect can be improved further thus.
As shown in Figure 3, in a preferred embodiment of the invention, blade part 203 is multiple, multiple blade part 203 is arranged on driving shaft 202 along the axially spaced of driving shaft 202, multiple blade part 203 carries out multistage collision with flue gas thus, improves the effect of the vanadic anhydride droplet in removing flue gas further.
In a concrete example of the present invention, pipe 2011 is two and is arranged symmetrically with relative to driving shaft 202, pipe 2011 is connected with cold air access tube 204, to enter the flue gas of pipe 2011 with chilling for feeding cold air in pipe 2011, vanadic anhydride droplet remaining in flue gas can be made thus to solidify and to become solid, powdery, further reduce the content of the vanadic anhydride in flue gas, improve the rate of recovery of vanadium, decrease the dustiness in flue gas, reduce pollution, improve operating environment.
The simple operation described according to the vanadic anhydride melting unit of the embodiment of the present invention below.
In melting chamber R, coal gas is sprayed into and oxygen heats in melting chamber R by burner 102, such as be heated to the temperature of 800-850 degree Celsius, vanadic anhydride pulvis is joined in melting chamber R from charge door 1011, by heat fused in the process that vanadic anhydride pulvis declines in melting chamber R.
The vanadic anhydride of fusing flows to melt outlet 1013 along the bottom surface of furnace chamber and discharges, and melt outlet 1013 can be connected with pelleter and carry out film-making, thus obtains vanadic anhydride tablet.
Flue gas and unfused vanadic anhydride pulvis and the vanadic anhydride droplet being contained in the fusing in flue gas enter in sub-expansion chamber C1 from melting chamber R by the gap below the baffle plate of the rightmost side, in sub-expansion chamber C1, coal gas and oxygen is sprayed by auxiliary burning nozzle 104, thus auxiliary heating fusing is carried out to unfused vanadic anhydride pulvis, the vanadic anhydride melt again melted flows to melt outlet 1013 and discharges.
A small amount of vanadic anhydride pulvis of flue gas and remnants and the vanadic anhydride droplet be contained in flue gas enter sub-expansion chamber C2 from sub-expansion chamber C1 by the gap below next baffle plate 103 and carry out sedimentation again, and then flue gas is discharged from exhanst gas outlet 1012.
The flue gas of discharging from exhanst gas outlet 1012 is from the inner chamber entering mouth 2012 and enter housing 201, drive unit 205 driven vane parts 203 rotate, flue gas collides with blade 2031 in the process risen, vanadic anhydride droplet in flue gas falls and is separated with flue gas, flue gas moves up through the through hole 2034 on impeller 2032, collides step by step with blade 2031.Finally, flue gas enters pipe 2011, supplies cold air by cold air access tube 204 to entering mouth 2012 simultaneously, and to carry out chilling to flue gas, vanadic anhydride droplet remaining in flue gas is frozen into powdery and falls in melting furnace, flue gas discharges demister 200.
According to the vanadic anhydride melting unit of the embodiment of the present invention, reduced the smoke content the flue gas of discharging from exhanst gas outlet 1012 by repeatedly sedimentation and auxiliary fusing, reduce pollution, improve operating environment.Such as, and only carry out the heat fused of vanadic anhydride pulvis in the vanadic anhydride melting furnace of the embodiment of the present invention, temperature can control, in the scope of 800-850 degree Celsius, to reduce energy consumption.
Flue gas can be made to be separated with vanadic anhydride wherein by demister, and vanadic anhydride droplet remaining in flue gas can be made to solidify by chilling and become solid, powdery, further reduce the content of the vanadic anhydride in flue gas, improve the rate of recovery of vanadium, decrease the dustiness in flue gas, reduce pollution, improve operating environment.
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, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalents thereof.
Claims (10)
1. a melting unit, is characterized in that, comprising:
Melting furnace, described melting furnace comprises:
Body of heater, limits furnace chamber in described body of heater, and described body of heater has charge door, exhanst gas outlet and melt outlet;
Baffle plate, described baffle plate is arranged on so that described furnace chamber is divided into melting chamber and expansion chamber in described furnace chamber, and the upper end of wherein said baffle plate is connected with the roof of described furnace chamber and the roof of the lower end of described baffle plate and described furnace chamber preset distance apart; With
Burner, described burner is arranged on the sidewall of described melting chamber; And demister, described demister comprises:
Housing, limits inner chamber in described housing, and the bottom of described housing is provided with into mouth and the top of described housing is provided with pipe;
Driving shaft, described driving shaft extend into described inner chamber from the top of described housing;
Blade part, described blade part is arranged on described driving shaft; With
Drive unit, described drive unit is connected with described driving shaft for driving described driving shaft to rotate.
2. melting unit according to claim 1, is characterized in that, described blade part comprises:
Impeller, described impeller is arranged on described driving shaft; With
Blade, described blade is arranged on the lower surface of described impeller.
3. melting unit according to claim 2, is characterized in that, described blade part is multiple, and described multiple blade part is arranged on described driving shaft along the axially spaced of described driving shaft.
4. melting unit according to claim 2, is characterized in that, described impeller is distributed with through hole.
5. melting unit according to claim 1, is characterized in that, described pipe is connected with cold air access tube.
6. melting unit according to claim 1, it is characterized in that, described charge door is positioned at the top of described melting chamber, described exhanst gas outlet along the longitudinal direction of described body of heater and described charge door spaced apart, described melt outlet is positioned at one end of the close described exhanst gas outlet of described body of heater.
7. melting unit according to claim 6, is characterized in that, the height of described melting chamber is greater than the height of described expansion chamber.
8. melting unit according to claim 7, it is characterized in that, described baffle plate is multiple, longitudinally-spaced so that described expansion chamber is divided into multiple sub-expansion chamber along described body of heater of described multiple baffle plate, wherein said exhanst gas outlet is positioned at apart from the roof of described melting chamber expansion chamber farthest, and is provided with auxiliary burning nozzle on the roof of the sub-expansion chamber adjacent with described melting chamber.
9. melting unit according to claim 1, is characterized in that, the bottom surface of described furnace chamber is downward-sloping gradually along the direction from melting chamber to expansion chamber in the vertical, and the bottom surface of described furnace chamber is provided with the chase extended longitudinally.
10. melting unit according to claim 1, is characterized in that, described baffle plate is heat-resisting steel sheet and plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110083252.1A CN102735052B (en) | 2011-04-01 | 2011-04-01 | Melting unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110083252.1A CN102735052B (en) | 2011-04-01 | 2011-04-01 | Melting unit |
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| CN102735052A CN102735052A (en) | 2012-10-17 |
| CN102735052B true CN102735052B (en) | 2015-05-06 |
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| CN201110083252.1A Active CN102735052B (en) | 2011-04-01 | 2011-04-01 | Melting unit |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105091578B (en) * | 2015-08-31 | 2017-05-17 | 苏州富通高新材料科技股份有限公司 | Fusion device used for panel processing |
| CN109253623B (en) * | 2017-07-12 | 2022-08-09 | 上海宝钢工业技术服务有限公司 | V 2 O 5 Furnace tail retaining wall structure of fuse-element furnace |
| CN109205675A (en) * | 2018-11-23 | 2019-01-15 | 承德燕北冶金材料有限公司 | A kind of production system and method for ammonium poly-vanadate production vanadic anhydride |
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| SU1724711A1 (en) * | 1990-02-23 | 1992-04-07 | Научно-производственное объединение "Тулачермет" | Method of melting paste-like vanadium pentoxide and furnace for realizing the method |
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