CN102062527A - Decarburization roasting device of vanadium extraction by fire for stone coal containing vanadium and processing thereof - Google Patents

Decarburization roasting device of vanadium extraction by fire for stone coal containing vanadium and processing thereof Download PDF

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CN102062527A
CN102062527A CN 201010550297 CN201010550297A CN102062527A CN 102062527 A CN102062527 A CN 102062527A CN 201010550297 CN201010550297 CN 201010550297 CN 201010550297 A CN201010550297 A CN 201010550297A CN 102062527 A CN102062527 A CN 102062527A
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main body
air
decarburization
vanadium
airduct
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CN102062527B (en
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夏德宏
张艳
徐元博
胡羽
霍婧
舒斌
陈良泽
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University of Science and Technology Beijing USTB
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University of Science and Technology Beijing USTB
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Abstract

The invention belongs to the technical field of vanadium extraction, in particular relates to a decarburization roasting device of vanadium extraction by fire for stone coal containing vanadium and processing thereof dispensed with external heating source. By the processing, after the stone coal and combustion-supporting wind are ignited in a precombustion chamber, the ignited stone coal enters a main body I tangentially, and goes ahead spirally in the main body I, and is mixed uniformly with extrusive hot air from an annular air register, after sufficient decarburization and oxidizing roasting, and through gas-solid segregation in a taper discharge opening, clinker is discharged from the taper discharge opening, and the high temperature smoke upward countercurrent is discharged from a central tube; the clinker enters a cooling device through a charging chamber, drops slowly and is subject to heat exchange with the circulating air upward though a taper ventilation terminal under the distributive effect of a cavernous structure on an elastic damping body, and the heated air enters into the precombustion chamber from a discharge opening through a pipeline to preheat the stone coal; and the cooled clinker is subject to subsequent working procedures of leaching, vanadium deposition, ignition and the like, so that a V2o5 product is extracted. In the invention, the working process is simplified, the heat exists in the working procedure of vanadium extraction and roasting is utilized reasonably, and heat is not required to be supplied externally.

Description

A kind of decarburization calciner and technology thereof that contains the one fiery vanadium extraction of scherbinaite coal
Technical field
The invention belongs to the vanadium extraction technology that contains the scherbinaite coal, relate in particular to a kind of decarburization calciner and technology thereof of containing the one fiery vanadium extraction of scherbinaite coal that need not external heat source.
Technical background
Bone coal is a kind of coal resources that are housed in the ancient rock stratum, is a kind of sapropelic coal that 500,000,000 years pregeologic algae, mushroom etc. form under neritic environment.Bone coal mostly has high ash, high-sulfur and low-calorie characteristics, and its composition also has silica, calcium oxide and a spot of iron oxide, aluminium oxide and magnesia etc. except that containing organic carbon.
Contain elements such as more C, V, Ca, Al, Si in typical case's bone coal, therefore, bone coal not only can be as the fuel of power boiler and cement kiln, and the slag after the burning also can be used as the raw material of cement, also can extract metallic elements such as vanadium, uranium, molybdenum, nickel, copper, cobalt from bone coal.
The higher bone coal of vanadium content adopts roasting → leaching → precipitation → calcination operation to extract V more at present 2O 5The conventional oxidation calcining process is finished in kilns such as shaft furnace, fluid bed, down-draft kiln, rotary kiln usually, the raw material of oxidizing roasting operation is the normal temperature bone coal, it at first carries out preheating in kiln, the decarburization of burning during to 700 ℃ of left and right sides, decarburization finishes and can carry out the conversion of trivalent vanadium to the pentavalent vanadium, general preheating section and decarbonization section account for about half of calcining kiln length overall, have seriously limited the production capacity of oxidizing roasting operation.The high-temperature flue gas that produces enters the waste heat boiler recovery waste heat behind rough dusting, again through bag-type dust by the induced-draft fan emptying, though bone coal has chemical heat, and roasting is heat release also, but because the waste heat recovery heat does not return roaster, therefore roaster not only can not outer energy supply source, needs external heat source on the contrary, the producer gases that adopt in the industry more.Yet carbon containing in the bone coal, 750-900 ℃ the high temperature that the oxidation that this part chemical heat enough provides vanadium is required, and vanadium to be oxidized to the pentavalent vanadium by trivalent vanadium also be exothermic reaction, burning and the roasting of therefore finishing bone coal in the same stove are very feasible.
Summary of the invention
At containing the irrational problem of Btu utilization that exists in the scherbinaite coal vanadium-extracting roasting operation at present, the objective of the invention is to propose a kind of simplifying working process, rationally utilize the heat that exists in the vanadium-extracting roasting operation, need not the decarburization calciner and the technology thereof that contain the one fiery vanadium extraction of scherbinaite coal of extraneous additional heat.
Technical scheme of the present invention is: a kind of decarburization calciner that contains the one fiery vanadium extraction of scherbinaite coal, and this decarburization roasting furnace is made up of roaster and cooling device; Described roaster comprises precombustion chamber, annular air register, main body one and central tube; Described cooling device comprises feeding warehouse, main body two, elastic colloid and taper ventilation terminal; Wherein, described main body one is a cylindrical sleeves, and described main body one top connects described precombustion chamber, and the bottom is tapered discharging opening, and described central tube one end places in the described main body one, and the other end stretches out described main body one; Described annular air register assembles on the outer wall of described main body one, described tapered discharging opening and described charging storekeeper connect, described feeding warehouse is connected with described main body two, described main body two upper ends are provided with outlet, the lower end is connected with air inlet pipe, described taper ventilation terminal is arranged on the bottom of described main body two, and described elastic colloid is arranged on the inwall of described main body two; Described hot blast outlet is connected with described precombustion chamber by pipeline.
Further, described annular air register by air loop duct, on arrange airduct and under the airduct of arranging form, described air loop duct is provided with arrange on the described airduct and the airduct of arranging down, the airduct of arranging on the described 5-20 degree connection that is inclined upwardly, the airduct level of arranging under described connects, and can adjust big vortex strength degree.
Further, described elastic colloid adopts the netted composite construction of multilayer of heat-resistance stainless steel.
Further, described elastic colloid and vibrating motor are affixed, make elastic colloid according to the frequency vibration of setting, and strengthen the heat exchange between flue gas and the material and guarantee to flow unobstructed.
Another object of the present invention provides the above-mentioned technology that contains the decarburization calciner of scherbinaite coal one fiery vanadium extraction, specifically may further comprise the steps:
At first, after bone coal and combustion air lighted in precombustion chamber, tangentially enter in the main body one, advance at main body one inside spin, and evenly mix with the hot-air that sprays from annular air register, following current, vortex advance, smoulder, fully decarburization, oxidizing roasting, gas solid separation to the conical discharge port, solid powder is discharged from conical discharge port, and the high-temperature flue gas adverse current is upwards discharged in central tube;
Secondly, described solid powder enters in the cooling device by feeding warehouse, distributional effects by cavernous structure on the elastic colloid, slowly fall, the taper ventilation terminal sucks air toward cocycle by air inlet pipe, described solid powder and air from the bottom up carry out heat exchange, and the air after the heating enters in the precombustion chamber by pipeline from outlet and burns with the preheating bone coal.
The invention has the beneficial effects as follows: owing to adopt technique scheme, bottom of device of the present invention is provided with the taper ventilation terminal, air-flow flows downward to beat to taper ventilation terminal superinverse and flows to, play the effect of even distributing wind radially, guaranteed that air-flow upwards is evenly distributed, rationally utilized the heat that exists in the vanadium-extracting roasting operation, need not extraneous additional heat, simplify working process, reduced production cost.
Description of drawings
Fig. 1 is the structural representation of roaster of the present invention.
Fig. 2 is the structural representation of annular air register of the present invention.
Fig. 3 is the structural representation of cooling device of the present invention.
Fig. 4 contains the process chart of the decarburization calciner of scherbinaite coal one fiery vanadium extraction for the present invention.
Among the figure:
1. precombustion chamber 9. taper ventilation terminals
2. annular air register 10. air loop ducts
3. the airduct of arranging on the main body 1
4. 12. times airducts of arranging of tapered discharging opening
5. central tube 13. air inlet pipe
6. feeding warehouse 14. outlets
7. main body two
8. elastic colloid
The specific embodiment
Below in conjunction with specific embodiment technical scheme of the present invention is described further.
Be illustrated in figure 1 as the structural representation of roaster of the present invention.Roaster is by precombustion chamber 1, annular air register 2, main body 1 and central tube 5 are formed, wherein, main body 1 is a cylindrical sleeves, top is connected with precombustion chamber 1, and central tube 5 one ends place in the main body 1 of cylindrical sleeves, and an end stretches out outside the main body 1, on the outer wall of a plurality of annular air register 2 assembling main bodys 1, the bottom is tapered discharging opening 4.
Structural representation as Fig. 2 annular air register of the present invention.Annular air register 2 by an air loop duct 10, on arrange airduct 11 and under the airduct 12 of arranging form, air loop duct 10 be provided with arrange airduct 11 and under the airduct 12 of arranging, on the airduct 11 5-20 degree that is inclined upwardly of arranging, the airduct 12 of arranging down is level, can adjust big vortex strength degree.
The structural representation of cooling device of the present invention as shown in Figure 3.Cooling device is made up of storehouse charging 6, main body 27 and elastic colloid 8, wherein, feeding warehouse 6 is arranged on the top of main body 27, main body 27 upper ends are provided with outlet 14, the lower end is connected with air inlet pipe 13, the taper ventilation terminal 9 that the bottom opening of air inlet pipe 13 is provided with over against main body 27 bottoms, elastic colloid 8 is arranged on the inwall of described main body two.
Be illustrated in figure 4 as the process schematic representation that the present invention contains the one fiery vanadium extraction of scherbinaite coal.After bone coal and combustion air lighted in precombustion chamber, tangentially enter in the main body one, advance at main body one inside spin, and evenly mix with the hot-air that from annular air register, sprays, following current, vortex advance, smoulder, fully decarburization, oxidizing roasting, gas solid separation to the conical discharge port, grog is discharged from conical discharge port, and the high-temperature flue gas adverse current is upwards discharged in central tube;
Secondly, described grog enters in the cooling device by feeding warehouse, distributional effects by cavernous structure on the elastic colloid, slowly fall, the taper ventilation terminal sucks air toward cocycle by air inlet pipe, ripe powder and described air from the bottom up carry out heat exchange, and the air after the heating enters in the precombustion chamber by pipeline from outlet and burns with the preheating bone coal.

Claims (5)

1. decarburization calciner that contains the one fiery vanadium extraction of scherbinaite coal, this device is made up of roaster and cooling device; It is characterized in that described roaster comprises precombustion chamber (1), annular air register (2), main body one (3) and central tube (5); Described cooling device comprises feeding warehouse (6), main body two (7), elastic colloid (8) and taper ventilation terminal (9); Wherein, described main body one (3) is a cylindrical sleeves, described main body one (3) top connects described precombustion chamber (1), the bottom is tapered discharging opening (4), on the outer wall of the described main body one (3) of described annular air register (2) assembling, described central tube (5) one ends place in the described main body one (3), the other end stretches out outside the described main body one (3), described tapered discharging opening (4) connects with described feeding warehouse (6) pipe, described feeding warehouse (6) is connected with described main body two (7), described main body two (7) upper ends are provided with outlet (14), the lower end is connected with air inlet pipe (13), described taper ventilation terminal (9) is arranged on the bottom of described main body two (7), and described elastic colloid (8) is arranged on the inwall of described main body two (7); Described outlet (15) is connected with described precombustion chamber (1) by pipeline.
2. decarburization calciner according to claim 1, it is characterized in that, described annular air register (3) by air loop duct (10), on arrange airduct (11) and under the airduct (12) of arranging form, described air loop duct (10) be provided with arrange on described airduct (11) and under the airduct (12) of arranging, the airduct (10) of arranging on the described 5-20 degree that is inclined upwardly connects, airduct (11) level of arranging under described connects, and can adjust big vortex strength degree.
3. decarburization roasting furnace according to claim 1 is characterized in that, described elastic colloid (8) adopts the netted composite construction of multilayer of heat-resistance stainless steel.
4. decarburization calciner according to claim 1 is characterized in that, described elastic colloid (8) is affixed with vibrating motor, makes described elastic colloid according to the frequency vibration of setting, and strengthens the heat exchange between flue gas and the material and guarantees to flow unobstructed.
5. the technology that contains the decarburization calciner of scherbinaite coal one fiery vanadium extraction according to claim 1 is characterized in that:
Step 1: after bone coal and combustion air lighted in precombustion chamber, tangentially enter main body-Nei, advance at main body one inside spin, and evenly mix with the hot-air that from annular air register, sprays, following current, vortex advance, smoulder, fully decarburization, oxidizing roasting, gas solid separation to the conical discharge port, grog is discharged from conical discharge port, and the high-temperature flue gas adverse current is upwards discharged in central tube;
Secondly, described grog enters in the cooling device by feeding warehouse, distributional effects by cavernous structure on the elastic colloid, slowly fall, the taper ventilation terminal sucks air toward cocycle by air inlet pipe, ripe powder and described air from the bottom up carry out heat exchange, and the air after the heating enters in the precombustion chamber by pipeline from outlet and burns with the preheating bone coal.
CN201010550297A 2010-11-18 2010-11-18 Decarburization roasting device of vanadium extraction by vanadium containing stone coal and fire, and processing thereof Active CN102062527B (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102409159A (en) * 2011-09-06 2012-04-11 单文奎 Powder decarburization system
CN102628098A (en) * 2012-04-25 2012-08-08 彭武星 Boiler with decarbonization and roasting processes for refining vanadium pentoxide
CN102721280A (en) * 2012-06-30 2012-10-10 娄底市凌一机电设备有限公司 Negative micropressure ignition system for sintering machine bellows
CN106440798A (en) * 2016-11-29 2017-02-22 德米特(苏州)电子环保材料有限公司 Calcining equipment
CN106482519A (en) * 2016-11-29 2017-03-08 德米特(苏州)电子环保材料有限公司 Calcining furnace
CN106482518A (en) * 2016-11-29 2017-03-08 德米特(苏州)电子环保材料有限公司 Ablation device

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Publication number Priority date Publication date Assignee Title
CN1896006A (en) * 2006-01-16 2007-01-17 王雄鹰 Extraction of vanadium from stone coal with pollution treatment and ceramic production combination
CN101176837A (en) * 2006-11-10 2008-05-14 湖北汉海矿业投资有限公司 Novel technique for controlling and governing bone coal navajoite torrefaction waste gas
CN201246951Y (en) * 2008-05-23 2009-05-27 湖南金大地材料股份有限公司 Stone coal vanadium feeding calcination vertical kiln
CN201497326U (en) * 2009-08-03 2010-06-02 张广林 Special decarburization roasting oven for extracting vanadium from stone coal
CN101716548A (en) * 2009-12-22 2010-06-02 武汉科技大学 Grinding system used for extracting vanadium from stone coal
CN101776391A (en) * 2010-01-12 2010-07-14 武汉科技大学 Fluidized bed furnace used for vanadium extraction and decarbonization of stone coal

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1896006A (en) * 2006-01-16 2007-01-17 王雄鹰 Extraction of vanadium from stone coal with pollution treatment and ceramic production combination
CN101176837A (en) * 2006-11-10 2008-05-14 湖北汉海矿业投资有限公司 Novel technique for controlling and governing bone coal navajoite torrefaction waste gas
CN201246951Y (en) * 2008-05-23 2009-05-27 湖南金大地材料股份有限公司 Stone coal vanadium feeding calcination vertical kiln
CN201497326U (en) * 2009-08-03 2010-06-02 张广林 Special decarburization roasting oven for extracting vanadium from stone coal
CN101716548A (en) * 2009-12-22 2010-06-02 武汉科技大学 Grinding system used for extracting vanadium from stone coal
CN101776391A (en) * 2010-01-12 2010-07-14 武汉科技大学 Fluidized bed furnace used for vanadium extraction and decarbonization of stone coal

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102409159A (en) * 2011-09-06 2012-04-11 单文奎 Powder decarburization system
CN102409159B (en) * 2011-09-06 2013-01-16 单文奎 Powder decarburization system
CN102628098A (en) * 2012-04-25 2012-08-08 彭武星 Boiler with decarbonization and roasting processes for refining vanadium pentoxide
CN102721280A (en) * 2012-06-30 2012-10-10 娄底市凌一机电设备有限公司 Negative micropressure ignition system for sintering machine bellows
CN102721280B (en) * 2012-06-30 2014-08-06 娄底市凌一机电设备有限公司 Negative micropressure ignition system for sintering machine bellows
CN106440798A (en) * 2016-11-29 2017-02-22 德米特(苏州)电子环保材料有限公司 Calcining equipment
CN106482519A (en) * 2016-11-29 2017-03-08 德米特(苏州)电子环保材料有限公司 Calcining furnace
CN106482518A (en) * 2016-11-29 2017-03-08 德米特(苏州)电子环保材料有限公司 Ablation device
CN106482518B (en) * 2016-11-29 2019-05-10 德米特(苏州)电子环保材料有限公司 Ablation device

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