CN201598322U - Decarburizing device for vanadium extraction from stone coal - Google Patents
Decarburizing device for vanadium extraction from stone coal Download PDFInfo
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- CN201598322U CN201598322U CN2010200394000U CN201020039400U CN201598322U CN 201598322 U CN201598322 U CN 201598322U CN 2010200394000 U CN2010200394000 U CN 2010200394000U CN 201020039400 U CN201020039400 U CN 201020039400U CN 201598322 U CN201598322 U CN 201598322U
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Abstract
The utility model relates to a decarburizing device for vanadium extraction from stone coal. The technical scheme includes the a main bed (3), an accessory bed (5) and a cooling bed (10) are disposed at the bottom of a furnace (8) and sequentially separated from left to right by a first baffle wall (6) and a second baffle wall (9), the main bed (3) and the accessory bed (5) are evenly provided with gas burner nozzles (2) externally connected with a gas source via pipelines, lower portions of the main bed (3) and the accessory bed (5) are respectively communicated with a first fan (1) via the pipelines, the lower portion of the cooling bed (10) is communicated with a second fan (11) via the pipelines, the upper portion of the right side of the furnace (8) is provided with a gas duct (7), and the middle of the left side of the furnace (8) is provided with a feed tube (4). The decarburizing device has the advantages of simple structure, fast decarburizing speed, high stability, and capabilities of realizing boiling combustion of vanadium-contained stone coal with low heating value. Under condition of discharging large quantities of slag, slagging temperature can be lower than 150 DEG C.
Description
Technical field
The utility model belongs to technical field of wet metallurgy.Relate in particular to a kind of decarbonization device that is used for extracting vanadium from stone coal.
Background technology
Decarburization is a kind of pretreatment technology that contains before the scherbinaite coal carries out vanadium-extracting roasting, requirement can remove organic matter and the reductibility mineral major part that contains in the bone coal at short notice, reduce organic matter and reductibility mineral pair vanadium inhibition of oxidation in the bone coal, and make the decarburization roasting can make material inner form loose duct help follow-up bone coal roasting process (Zhang Xiaohui. bone coal oxidation sodium roasting apparatus evaluation and analysis [J]. rare metal and Wimet, 1999, (3): 53～54).
Existing common fluidizing furnace, main fuel is hard coal or the bituminous coal of calorific value greater than 4000kcal/kg, if be used to handle calorific value only for containing the scherbinaite coal less than 1000kcal/kg, be difficult to realize Boiling Combustion, easily follow-up extracting vanadium from stone coal process had a negative impact and sneak into other solid fuels; And because the ash content of bone coal causes the bed drain purge of fluidizing furnace big up to more than 80%, under the situation of not taking other measures, make deslagging temperature, have a strong impact on the operation of fluidizing furnace greater than 500 ℃.
Summary of the invention
The utility model is intended to overcome the prior art defective, and purpose provides that a kind of to realize that low heat value contains the Boiling Combustion of scherbinaite coal, decarburization time short and stability is high, deslagging temperature is less than 150 ℃ the decarbonization device that is used for extracting vanadium from stone coal.
For achieving the above object, the technical solution adopted in the utility model is: bottom of furnace body from left to right is provided with main bed, secondary bed and cold bed, main bed, secondary bed and cold bed are spaced from each other by first firebreak and second firebreak respectively successively, all be provided with coal gas burner equably on main bed and the secondary bed, coal gas burner is by the external coal gas of gas line source; Respectively by the pipeline and the first blower fan UNICOM, cold bed is below by the pipeline and the second blower fan UNICOM below main bed and the secondary bed; The right upper portion of body of heater is provided with flue, and the left side central portion of body of heater is provided with feed-pipe.
The stove inner port of feed-pipe is that the height of 5/20～8/20, first firebreak of body of heater height is that the height of 5/10～6/10, second firebreak of body of heater height is 3/10～4/10 of a body of heater height apart from the height of stove inner bottom part.
Main bedside degree is 1/3～1/2 of a body of heater stove insied width, and secondary bedside degree is 1/5～1/4 of a body of heater stove insied width, and the length of main bed, secondary bed and cold bed all is same as the interior length of stove of body of heater.
Cold bed is positioned at the place, mid-way on second firebreak and body of heater right side, and the bed surface of cold bed is the ridge at 40～50 ° at inclination angle, and the bed surface of cold bed is fixed on the bottom of furnace body by 3 steel pipes; Eaves eaves outside the right side of the distance of the second firebreak wall and cold bed bed surface is 1/30～1/20 of body of heater stove insied width apart from the distance of body of heater right side inwall outside the left side of cold bed bed surface.
Owing to adopt technique scheme, the utility model is on fluidizing furnace master bed and secondary bed, increase the combustion-supporting mode of coal gas, utilize gas-fired that heat is provided, realize that low heat value contains the Boiling Combustion of scherbinaite coal, can significantly improve decarburization efficient and the stability that contains the scherbinaite coal not adding on other solid-fuelled bases, can in 30 seconds, finish carbon rejection process; On original fluidizing furnace double bed architecture basics, increase cold bed, utilize the air blast type of cooling, effectively reduce deslagging temperature, realize that deslagging temperature is less than 150 ℃.So compared with the prior art the utility model, has the following advantages:
1, simple in structure, decarbonization rate is fast, and stability is high;
2, can realize that low heat value contains the Boiling Combustion of scherbinaite coal;
3, under big quantity of slag deslagging situation, realize that deslagging temperature is less than 150 ℃.
Description of drawings
Fig. 1 is a kind of structural profile synoptic diagram of the present utility model.
Embodiment
The utility model will be further described below in conjunction with the drawings and specific embodiments:
Embodiment 1
A kind of decarbonization device that is used for extracting vanadium from stone coal, its structure be as shown in Figure 1: be positioned at the main bed 3 of body of heater 8 bottoms, secondary bed 5 and cold bed 10, from left to right separated by first firebreak 6 and second firebreak 9 respectively successively.All be provided with coal gas burner 2 equably on main bed 3 and the secondary bed 5, coal gas burner 2 is by the external coal gas of gas line source; The following air channel of main bed 3 and secondary bed 5 is respectively by pipeline and first blower fan, 1 UNICOM, and the following air channel of cold bed 10 is by pipeline and second blower fan, 11 UNICOMs; Body of heater 8 right upper portion are provided with flue 7, and body of heater 8 left side central portion are provided with feed-pipe 4.
In the present embodiment, the stove inner port of feed-pipe 4 is that the height of 5/20～8/20, first firebreak 6 of body of heater 8 height is that the height of 5/10～6/10, second firebreak 9 of body of heater 8 height is 3/10～4/10 of body of heater 8 height apart from the height of stove inner bottom part.
The width of main bed 3 is 4/12～5/12 of body of heater 8 stove insied widths, and the width of secondary bed 5 is 8/40～9/40 of body of heater 8 stove insied widths; The length of main bed 3, secondary bed 5 and cold bed 10 all is same as the interior length of stove of body of heater 8.
A kind of decarbonization device that is used for extracting vanadium from stone coal.Except that following technical parameter, all the other same embodiment.
The width of main bed 3 is 5/12～6/12 of body of heater 8 stove insied widths, and the width of secondary bed 5 is 9/40～10/40 of body of heater 8 stove insied widths.The right side inwall of eaves apart from the outer eaves in the right side of the wall distance of second firebreak 9 and cold bed 10 bed surfaces apart from body of heater 8 is apart from being 5/120～6/120 of body of heater 8 stove insied widths outside the left side of cold bed 10 bed surfaces.
The working process of this embodiment is: light the coal gas burner 2 on main bed 3 and the secondary bed 5 earlier, and open first blower fan 1, achieve little air quantity operation; Treat that the decarburization bone coal enters main bed 3 upper spaces by feed-pipe 4 and realizes Boiling Combustion,, should strengthen air quantity gradually thereupon along with the increase gradually of bone coal raw material inlet; By the time after the bed of material reaches 600～800mm in the stove, keep inlet amount and air quantity stable, make the bone coal bed of material realize stablizing Boiling Combustion, the carbon rejection process of bone coal raw material begins; The density of bone coal raw material reduces after decarburization, will cross the upper space that first firebreak 6 enters secondary bed 5; The part not bone coal material of gross decarburization also can enter secondary 5 upper space, continues to finish carbon rejection process in the upper space Boiling Combustion of secondary bed 5; Bone coal material behind the upper space gross decarburization of secondary bed 5 is crossed the upper space that second firebreak 9 enters cold bed 10, the cold wind cooling that is blasted by second blower fan, 11 places, cooled decarburization material is discharged by the interval of cold bed 10 and second firebreak 9 and body of heater 8 right side inwalls; The flue gas that produces in the carbon rejection process is discharged by flue 7.
This device is on fluidizing furnace master bed 3 and secondary bed 5, increase the combustion-supporting mode of coal gas, utilize gas-fired that heat is provided, realize that low heat value contains the Boiling Combustion of scherbinaite coal, significantly improve decarburization efficient and the stability that contains the scherbinaite coal on other solid-fuelled bases not adding, can in 30 seconds, finish carbon rejection process; On original fluidizing furnace double bed architecture basics, increase cold bed 10, utilize the air blast type of cooling, effectively reduce deslagging temperature, realize that deslagging temperature is less than 150 ℃.
So the advantage that this device has is simple in structure, decarbonization rate fast and stability is high can realize the Boiling Combustion of low heat value Rock coal containing alum, in big quantity of slag deslagging situation, can realize that deslagging temperature is less than 150 ℃.
Claims (3)
1. decarbonization device that is used for extracting vanadium from stone coal, it is characterized in that body of heater (8) bottom from left to right is provided with main bed (3), secondary bed (5) and cold bed (10), main bed (3), secondary bed (5) and cold bed (10) are spaced from each other by first firebreak (6) and second firebreak (9) respectively successively, all be provided with coal gas burner (2) equably on main bed (3) and the secondary bed (5), coal gas burner (2) is by the external coal gas of gas line source; Below main bed (3) and secondary bed (5) respectively by pipeline and first blower fan (1) UNICOM; Cold bed (10) is below by pipeline and second blower fan (11) UNICOM; The right upper portion of body of heater (8) is provided with flue (7), and the left side central portion of body of heater (8) is provided with feed-pipe (4);
The stove inner port of feed-pipe (4) is that the height of 5/20～8/20, first firebreak (6) of body of heater (8) height is that the height of 5/10～6/10, second firebreak (9) of body of heater (8) height is 3/10～4/10 of body of heater (a 8) height apart from the height of stove inner bottom part.
2. the decarbonization device that is used for extracting vanadium from stone coal according to claim 1 is characterized in that described main bed (3) width is 1/3～1/2 of body of heater (a 8) stove insied width, and secondary bed (5) width is 1/5～1/4 of body of heater (a 8) stove insied width; The length of main bed (3), secondary bed (5) and cold bed (10) all is same as the interior length of stove of body of heater (8).
3. the decarbonization device that is used for extracting vanadium from stone coal according to claim 1 and 2, it is characterized in that described cold bed (10) is positioned at the place, mid-way on second firebreak (9) and body of heater (8) right side, the bed surface of cold bed (10) is the ridge at 40～50 ° at inclination angle, and the bed surface of cold bed (10) is fixed on body of heater (8) bottom by 3 steel pipes; The right side inwall of eaves apart from the outer eaves of the wall distance and the right side of cold bed (10) bed surface of second firebreak (9) apart from body of heater (8) is apart from being 1/30～1/20 of body of heater (8) stove insied width outside the left side of cold bed (10) bed surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200394000U CN201598322U (en) | 2010-01-12 | 2010-01-12 | Decarburizing device for vanadium extraction from stone coal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200394000U CN201598322U (en) | 2010-01-12 | 2010-01-12 | Decarburizing device for vanadium extraction from stone coal |
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| CN201598322U true CN201598322U (en) | 2010-10-06 |
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| CN2010200394000U Expired - Fee Related CN201598322U (en) | 2010-01-12 | 2010-01-12 | Decarburizing device for vanadium extraction from stone coal |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102534191A (en) * | 2012-01-20 | 2012-07-04 | 彭武星 | Two-section calcining device for extracting vanadium pentoxide |
| CN101776391B (en) * | 2010-01-12 | 2012-07-25 | 武汉科技大学 | Fluidized bed furnace used for vanadium extraction and decarbonization of stone coal |
| CN103451414A (en) * | 2013-09-22 | 2013-12-18 | 武汉科技大学 | Stone coal decarbonization device of multi-bed circulating fluidized bed |
| CN106367587A (en) * | 2016-09-21 | 2017-02-01 | 武汉科技大学 | Fluidized bed furnace used for one-step roasting of stone coal |
-
2010
- 2010-01-12 CN CN2010200394000U patent/CN201598322U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101776391B (en) * | 2010-01-12 | 2012-07-25 | 武汉科技大学 | Fluidized bed furnace used for vanadium extraction and decarbonization of stone coal |
| CN102534191A (en) * | 2012-01-20 | 2012-07-04 | 彭武星 | Two-section calcining device for extracting vanadium pentoxide |
| CN102534191B (en) * | 2012-01-20 | 2014-05-14 | 彭武星 | Two-section calcining device for extracting vanadium pentoxide |
| CN103451414A (en) * | 2013-09-22 | 2013-12-18 | 武汉科技大学 | Stone coal decarbonization device of multi-bed circulating fluidized bed |
| CN106367587A (en) * | 2016-09-21 | 2017-02-01 | 武汉科技大学 | Fluidized bed furnace used for one-step roasting of stone coal |
| CN106367587B (en) * | 2016-09-21 | 2018-05-11 | 武汉科技大学 | A kind of fluidized bed furnace for one one-step baking of bone coal |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101006 Termination date: 20110112 |