CN202792952U - Roasting furnace for vanadium extracted from stone coal - Google Patents
Roasting furnace for vanadium extracted from stone coal Download PDFInfo
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- CN202792952U CN202792952U CN2012203453758U CN201220345375U CN202792952U CN 202792952 U CN202792952 U CN 202792952U CN 2012203453758 U CN2012203453758 U CN 2012203453758U CN 201220345375 U CN201220345375 U CN 201220345375U CN 202792952 U CN202792952 U CN 202792952U
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Abstract
The utility model discloses a roasting furnace for vanadium extracted from stone coal. The roasting furnace comprises a furnace body, a combustor, a furnace roof and an air blow, wherein the furnace body is provided with a charging opening, a discharging opening, a smoke vent and a combustor opening, the combustor is arranged in the combustor opening, the furnace roof is arranged on the top portion of the furnace body, the air blower is provided with an air inlet and an air outlet, arranged below the furnace body and communicated with the interior of the furnace body via the air outlet, and the air outlet is formed by air hoods provided with a plurality of small holes. By the aid of the roasting furnace, the stone coal is subjected to decarburization and vanadium conversion under a fluidized state, small-size stone coal particles entered the roasting furnace are discharged via the smoke vent, and reaction time is short; and large-size stone coal particles entered the roasting furnace are discharged via an overflow port of a fluidized bed, and reaction time is long, thus reacting requirements are met. Meanwhile, air or oxygen-enriched air is selectively supplemented according to the reacting requirements, during the whole reaction process, contact between the stone coal and the air is good, reaction efficiency is high, and conversion effect is good. In addition, the roasting furnace is small in size and occupation area and low in equipment investment and integral cost.
Description
Technical field
The utility model relates to a kind of stone coal vanadium-extracting roasting stove.
Background technology
Roasting is the critical process of extracting vanadium from stone coal, and vanadium conversion ratio and vanadium extraction efficient are had significant impact.Traditionally, carry out roasting with rotary kiln, transform (oxidation) in rotary kiln, to carry out decarburization and vanadium.But, there are many problems with rotary kiln baking, at first, decarburization and vanadium transform needs the long time just can finish, and the bone coal treating capacity is very large, causes that extracting vanadium from stone coal is large with the rotary kiln specification, rotating speed is low, utilization ratio is low, cost of investment is high; Secondly, decarburizing reaction is violent oxidation reaction, needs good oxidizing atmosphere, and bone coal leans on the kiln body to rotate to realize with contacting of air more in rotary kiln, contacts fully not, affects oxidation effectiveness.If improve the rotating speed of rotary kiln in order to improve production capacity, air and bone coal time of contact can be shorter, and roasting effect is poor, and vanadium transforms insufficient, has reduced the vanadium conversion ratio; If further prolong the length of rotary kiln, more can further increase cost of investment.
The utility model content
The utility model one of is intended to solve the problems of the technologies described above at least to a certain extent or provides at least a kind of useful commerce to select.For this reason, a purpose of the present utility model is to propose a kind of stone coal vanadium-extracting roasting stove, and this stone coal vanadium-extracting roasting stove roasting effect is good, and the vanadium transformation efficiency is high, and cost is low, small investment.
Comprise according to stone coal vanadium-extracting roasting stove of the present utility model: body of heater, described body of heater has charge door, discharging opening, outlet flue and burner opening; Burner, described burner are located in the described burner opening; Furnace roof, described furnace roof is arranged on the top of described body of heater; And bellows, described bellows have air inlet and air outlet, and wherein said air outlet is made of the blast cap that has a plurality of apertures, and described bellows are positioned at below the body of heater and by air outlet and are connected with body of heater inside.
According to stone coal vanadium-extracting roasting stove of the present utility model, bone coal carries out decarburization under fluidized state and vanadium transforms, and according to the characteristics of fluidized roaster, enters less the discharging from flue gas of particle in the hearthstone coal, and the reaction time is shorter; What particle was larger discharges from the fluidized-bed overfall, and the reaction time is longer, meets reaction needed.Simultaneously, more can select to replenish air or oxygen-enriched air according to reaction needed, whole course of reaction bone coal and contact with air be good, and reaction efficiency is high, and changing effect is good, and the volume of roaster is little, takes up an area to lack, and equipment investment is few, and holistic cost is low.
In addition, also have following additional technical feature according to stone coal vanadium-extracting roasting stove of the present utility model:
The integral type furnace roof that the refractory casting bed of material that described furnace roof is formed by cast consists of.
Thus, so furnace roof is flexible, and structural stability and security performance are high, and heat endurance and good seal performance are air tight.And then because structural stability and the Heat stability is good of furnace roof, the size of furnace roof and the size of body of heater can increase, and make the capacity expansion of stone coal vanadium-extracting roasting stove become possibility, have improved roasting quality and production efficiency.And by the furnace roof with the castable refractory pouring integrated, the good integrity of furnace roof, handling ease, efficient is high, has reduced cost.
Described body of heater comprises the fire brick layer of outermost metal furnace shell, innermost layer and is positioned at middle insulating brick layer.Be positioned at outermost metal furnace shell plays framework to whole body of heater effect, thereby in metal furnace shell the inside other body of heater layers can be set, the innermost layer of body of heater is fire brick layer, and by the insulating brick layer is set in the centre, can prevent the excess Temperature of metal furnace shell, because the heat-conductive characteristic of fire brick layer is good, therefore by being set, the insulating brick layer can prevent that the heat in the stove is transmitted to the metal furnace shell by fire brick layer.
Described outlet flue is formed on the smoke section of body of heater, and the innermost layer of smoke section is that the refractory casting bed of material, outermost layer are the metal furnace shell, and the intermediate layer is the insulating brick layer.
Described charge door and discharging opening are respectively formed at feeder and the discharging portion of body of heater, and wherein the innermost layer of feeder and discharging portion is that the refractory casting bed of material, outermost layer are the metal furnace shell, and the intermediate layer is the insulating brick layer.
According to the utility model stone coal vanadium-extracting roasting stove, the innermost layer of the body of heater at outlet flue, charge door and discharging opening place (being smoke section, feeder and discharging portion) is formed by the castable refractory cast, outermost layer is the metal furnace shell, and the intermediate layer is the insulating brick layer, and described innermost layer can be with the castable refractory formula that pours into an integrated entity thus, thereby overall performance is good, cast is fast, working (machining) efficiency is high, need not to process various heterotypic fire bricks, cost.The intermediate layer is made of the insulating brick layer, can prevent that furnace heat is transmitted to the metal furnace shell.
Further comprise the furnace roof cover according to stone coal vanadium-extracting roasting stove of the present utility model, described furnace roof cover is arranged on the outer surface of furnace roof.By the furnace roof cover is set at furnace roof, can play a protective role to furnace roof, and can increase the intensity of furnace roof.
Described body of heater is divided into stage casing and the columned epimere of columned hypomere, frustum-like shape, and the diameter of wherein said epimere is greater than the diameter of hypomere.Thus, also can be called one-level according to stone coal vanadium-extracting roasting stove of the present utility model and enlarge roaster, namely body of heater passes through the in the upward direction size expansion of stage casing of frustum-like shape, thereby has improved the capacity of roaster, has improved production efficiency.
The arch angle of the cross-sectional area of described hypomere 〉=145 square metre and described arch furnace roof 〉=105 degree.According to stone coal vanadium-extracting roasting stove of the present utility model, because furnace roof is the integral type furnace roof, so the Stability Analysis of Structures performance of furnace roof and thermal stability are good, and security improves, thereby the volume of the size of body of heater and body of heater can increase.For example, the cross-sectional area of body of heater hypomere is greater than 145 square metres, solved split type furnace roof that refractory brick is built into to the restriction of body of heater size.Because furnace roof is the integral type furnace roof that the castable refractory cast forms, thereby the arch angle of arch furnace roof can be greater than 105 degree.
Described furnace roof is arch.By the furnace roof of arch is set, can further increase the structural stability of furnace roof.
Described charge door is provided with burner, when the bone coal carbon containing is not enough to keep reaction institute calorific requirement, can pass through burner combustion natural gas additional heat, the thermal balance of maintenance system.
According to the stone coal vanadium-extracting roasting stove of the utility model embodiment, by bone coal is carried out fluosolids roasting, improve the effect that contacts of oxygen and bone coal, improve roasting effect, be convenient to the conversion of decarburization and vanadium.
Additional aspect of the present utility model and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present utility model.
Description of drawings
Above-mentioned and/or additional aspect of the present utility model and advantage are from obviously and easily understanding becoming the description of embodiment in conjunction with following accompanying drawing, wherein:
Fig. 1 is the structural representation according to the stone coal vanadium-extracting roasting stove of the utility model embodiment.
The specific embodiment
The below describes embodiment of the present utility model in detail, and the example of described embodiment is shown in the drawings, and wherein identical or similar label represents identical or similar element or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment that is described with reference to the drawings, only be used for explaining the utility model, and can not be interpreted as restriction of the present utility model.
Need to prove, in description of the present utility model, term " on ", D score, " in " " top ", " end ", " laterally ", " vertically " etc. indicated orientation and position relationship be based on orientation shown in the drawings and position relationship, only be used for convenient description of the present utility model, and can not be interpreted as restriction of the present utility model.
Below with reference to the stone coal vanadium-extracting roasting stove of Fig. 1 detailed description according to the utility model embodiment.
As shown in Figure 1, the stone coal vanadium-extracting roasting stove according to the utility model embodiment comprises body of heater 1, furnace roof 17 and bellows 2.Here, although furnace roof 17 is described side by side as independent parts and body of heater 1, can not limit thus the utility model, for example, also can be with furnace roof 17 as a part that consists of body of heater 1.
Body of heater 1 inside limits a furnace chamber and has charge door 11a, discharging opening 12a, outlet flue 13a and burner opening, is provided with burner S in the burner opening, is used for spraying heavy oil in furnace chamber, and the fuel such as natural gas or diesel oil are to provide the institute of roasting in furnace chamber calorific requirement.Preferably, the temperature in the furnace chamber remains on 800-980 degree centigrade, more preferably, remains on 850 degrees centigrade, is beneficial to the decarburization of bone coal and the conversion of vanadium.The upper shed of furnace chamber is by furnace roof 17 sealings, and under shed can be by the base plate of body of heater 1, top board or the sealing of the dividing plate between body of heater 1 and the bellows 2 of bellows 2.The charge door 11a of body of heater 1 is used for adding bone coal in furnace chamber, and the furnace charge after the decarburization after the roasting and vanadium turn is discharged from discharging opening 12a, and the flue gas that produces in the roasting process is discharged roaster from outlet flue 13a, and collect, the operation such as dedusting.
In an example of the present utility model, body of heater 1 comprises the fire brick layer 112 of outermost metal furnace shell 110, innermost layer and is positioned at middle insulating brick layer 111.The skeleton function that metal furnace shell 110 plays, insulating brick layer 111 and fire brick layer 112 are arranged on the metal furnace shell 110 successively, insulating brick layer 111 prevents that the heat in the stove is delivered to metal furnace shell 110 by the good fire brick layer 112 of conductive performance, thereby avoid the excess Temperature of metal furnace shell 110, reduced the loss of heat.
Furnace roof 17 is installed in the top of body of heater 1, with the upper end open of closed furnace body 1.
According to the stone coal vanadium-extracting roasting stove of the utility model embodiment, by bone coal is carried out fluosolids roasting, oxygen contacts with bone coal, shortened decarburization and vanadium and transformed required time, roasting effect is good, and the vanadium transformation efficiency is high, compare with traditional rotary kiln, reduced equipment investment.In addition, be evenly distributed, be easy to control according to stone coal vanadium-extracting roasting furnace temperature of the present utility model, and stone coal decarbonization and vanadium conversion also are the reactions under fixed temperature, use the roaster roasting to save intensification, the reaction of rotary kiln, each section of lowering the temperature, and equipment efficiency of usage is higher.Simultaneously, roaster takes full advantage of the decarburization liberated heat, then by burner S additional heat, both effectively has been beneficial to the heat of stone coal combustion such as shortage of heat, has reduced energy consumption, has guaranteed again reaction temperature.
According to an example of the present utility model, furnace roof 17 is become one by the castable refractory cast, and castable refractory for example is refractory cement.With castable refractory pouring integrated furnace roof 17, so furnace roof 17 is flexible, and structural stability and security performance are high, heat endurance and good seal performance.Because structural stability and the Heat stability is good of furnace roof 17, therefore the size of furnace roof 17 can increase, thereby the size of body of heater 1 can increase, can increase thus the capacity of stone coal vanadium-extracting roasting stove, improve roasting quality and production efficiency, overcome the problem of the split type furnace roof existence that is built into by refractory brick, and can improve the overall structure performance of furnace roof, handling ease, efficient is high, has reduced cost.
As shown in Figure 1, according to an example of the present utility model, on above-below direction, body of heater 1 can be divided into three parts: the stage casing 15 of columned hypomere 14, frustum-like shape and columned epimere 16, and wherein the diameter of epimere 16 is greater than the diameter of hypomere 14, and the stone coal vanadium-extracting roasting stove according to this example also becomes one-level expansion roaster thus, because the diameter of epimere increases, thereby reduced the air space rate, controlled dust rate to a certain degree, guaranteed decarburization and the transformation efficiency of flue dust.
As mentioned above, because furnace roof 17 is the integral type furnace roof, so the size of body of heater 1 can increase.According to an example of the present utility model, the diameter of the hypomere of diameter minimum can reach 13600 millimeters, the cross-sectional area that is hypomere can be above 145 square metres, compare traditional stone coal vanadium-extracting roasting stove that the lower portion of furnace body cross-sectional area is no more than 138 square metres, according to stone coal vanadium-extracting roasting stove of the present utility model, capacity can significantly increase.
As shown in Figure 1, in an example of the present utility model, monoblock type furnace roof 17 is arch, can further increase thus the structural stability of furnace roof.Because furnace roof 17 is integral type, so the arch angle of arch furnace roof 17 can be more than or equal to 105 degree, and namely the size of furnace roof 17 increases.
In an example of the present utility model, outlet flue 13a is formed on the smoke section 13 of body of heater 1, and the innermost layer of smoke section 13 is metal furnace shell 110 for the refractory casting bed of material, the outermost layer of the one that cast forms, and the intermediate layer is insulating brick layer 111.Thus, be used for pouring into a mould the smoke section 13 of the integral type that forms, namely innermost layer replaces fire brick layer with the refractory casting material layer, thereby overall performance is good, and cast is fast, the efficient height, and need not to process the refractory brick of various abnormal shapes, so cost.
Similarly, in another example of the present utility model, charge door 11a and discharging opening 12a are respectively formed at feeder 11 and the discharging portion 12 of body of heater 1, and the innermost layer of feeder 11 and discharging portion 12 is that the refractory casting bed of material, outermost layer are metal furnace shell 110, and the intermediate layer is insulating brick layer 111.
In the further example of the utility model, the stone coal vanadium-extracting roasting stove further comprises furnace roof cover 171, and furnace roof cover 171 is arranged on the outer surface of furnace roof 17.By at furnace roof 17 furnace roof cover 171 being set, can playing a protective role to furnace roof 17, and can increase the intensity of furnace roof 17.
Described charge door is provided with the burner (not shown), when the bone coal carbon containing is not enough to keep reaction institute calorific requirement, can pass through burner combustion natural gas additional heat, the thermal balance of maintenance system.
According to the stone coal vanadium-extracting roasting stove of the utility model embodiment, by bone coal is carried out fluosolids roasting, improve the effect that contacts of oxygen and bone coal, improve roasting effect, be convenient to the conversion of decarburization and vanadium.
Furnace roof 17 by (integral body) formula that pours into an integrated entity with castable refractory can increase furnace roof 17 flexibilities, structural stability and security performance, and Heat stability is good and good seal performance are air tight thus.And then the size of furnace roof 17 can increase, thereby the size of body of heater 1 can increase, and has guaranteed roasting quality.
Although illustrated and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: can carry out multiple variation, modification, replacement and modification to these embodiment in the situation that does not break away from principle of the present utility model and aim, scope of the present utility model is limited by claim and equivalent thereof.
Claims (10)
1. a stone coal vanadium-extracting roasting stove is characterized in that, comprising:
Body of heater, described body of heater has charge door, discharging opening, outlet flue and burner opening;
Burner, described burner are located in the described burner opening;
Furnace roof, described furnace roof is arranged on the top of described body of heater; With
Bellows, described bellows have air inlet and air outlet, and wherein said air outlet is made of the blast cap that has a plurality of apertures, and described bellows are positioned at below the described body of heater and by described air outlet and are connected with described body of heater inside.
2. stone coal vanadium-extracting roasting stove according to claim 1 is characterized in that, the integral type furnace roof that the refractory casting bed of material that described furnace roof is formed by cast consists of.
3. stone coal vanadium-extracting roasting stove according to claim 1 is characterized in that, described body of heater comprises the fire brick layer of outermost metal furnace shell, innermost layer and is positioned at middle insulating brick layer.
4. stone coal vanadium-extracting roasting stove according to claim 3 is characterized in that, described outlet flue is formed on the smoke section of body of heater, and the innermost layer of described smoke section is that the refractory casting bed of material, outermost layer are the metal furnace shell, and the intermediate layer is the insulating brick layer.
5. stone coal vanadium-extracting roasting stove according to claim 3, it is characterized in that, described charge door and discharging opening are respectively formed at feeder and the discharging portion of body of heater, and the innermost layer of wherein said feeder and discharging portion is that the refractory casting bed of material, outermost layer are the metal furnace shell, and the intermediate layer is the insulating brick layer.
6. stone coal vanadium-extracting roasting stove according to claim 1 is characterized in that, further comprises the furnace roof cover, and described furnace roof cover is arranged on the outer surface of furnace roof.
7. stone coal vanadium-extracting roasting stove according to claim 1 is characterized in that, described body of heater is divided into stage casing and the columned epimere of columned hypomere, frustum-like shape, and the diameter of wherein said epimere is greater than the diameter of hypomere.
8. stone coal vanadium-extracting roasting stove according to claim 7 is characterized in that, the arch angle of the cross-sectional area of described hypomere 〉=145 square metre and described arch furnace roof 〉=105 degree.
9. stone coal vanadium-extracting roasting stove according to claim 1 is characterized in that, described furnace roof is arch.
10. each described stone coal vanadium-extracting roasting stove according to claim 1-9 is characterized in that described charge door is provided with burner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203453758U CN202792952U (en) | 2012-07-16 | 2012-07-16 | Roasting furnace for vanadium extracted from stone coal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203453758U CN202792952U (en) | 2012-07-16 | 2012-07-16 | Roasting furnace for vanadium extracted from stone coal |
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| Publication Number | Publication Date |
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| CN202792952U true CN202792952U (en) | 2013-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012203453758U Expired - Lifetime CN202792952U (en) | 2012-07-16 | 2012-07-16 | Roasting furnace for vanadium extracted from stone coal |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103436691A (en) * | 2013-07-31 | 2013-12-11 | 中国地质科学院矿产综合利用研究所 | Fluidized magnetization reduction roasting device |
| CN111201334A (en) * | 2017-10-13 | 2020-05-26 | 普莱克斯技术有限公司 | Oxygen injection in fluid bed concentrate roasting |
| CN112833668A (en) * | 2020-12-31 | 2021-05-25 | 重庆长江造型材料（集团）股份有限公司 | Distributed thermal cracking system of roasting furnace |
-
2012
- 2012-07-16 CN CN2012203453758U patent/CN202792952U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103436691A (en) * | 2013-07-31 | 2013-12-11 | 中国地质科学院矿产综合利用研究所 | Fluidized magnetization reduction roasting device |
| CN111201334A (en) * | 2017-10-13 | 2020-05-26 | 普莱克斯技术有限公司 | Oxygen injection in fluid bed concentrate roasting |
| CN112833668A (en) * | 2020-12-31 | 2021-05-25 | 重庆长江造型材料（集团）股份有限公司 | Distributed thermal cracking system of roasting furnace |
| CN112833668B (en) * | 2020-12-31 | 2023-02-28 | 重庆长江造型材料（集团）股份有限公司 | Distributed thermal cracking system of roasting furnace |
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Granted publication date: 20130313 |
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| CX01 | Expiry of patent term |