CN202792967U - Roasting equipment for vanadium extracted from stone coal - Google Patents
Roasting equipment for vanadium extracted from stone coal Download PDFInfo
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- CN202792967U CN202792967U CN201220345050XU CN201220345050U CN202792967U CN 202792967 U CN202792967 U CN 202792967U CN 201220345050X U CN201220345050X U CN 201220345050XU CN 201220345050 U CN201220345050 U CN 201220345050U CN 202792967 U CN202792967 U CN 202792967U
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Abstract
The utility model discloses roasting equipment for vanadium extracted from stone coal. The roasting equipment comprises a first roasting furnace and a second roasting furnace which are fluidized bed furnaces, wherein the first roasting furnace is used for stone coal decarburization, the second roasting furnace is used for vanadium conversion, and the second roasting furnace is connected with the first roasting furnace so as to roast the stone coal decarburized in the first roasting furnace and convert the same into vanadium. According to the roasting equipment for the vanadium extracted from the stone coal, the first roasting furnace and the second roasting furnace are respectively utilized for stone coal decarburization and vanadium conversion, stone coal decarburization and vanadium conversion are respectively implemented in a single fluidized bed furnace, interaction between decarburization and vanadium conversion is avoided, and conditions in the first roasting furnace and the second roasting furnace are controlled respectively independently conveniently, so that the roasting equipment is good in roasting effect and high in efficiency. In addition, the entire roasting equipment is smaller in size and lower in cost and investment.
Description
Technical field
The utility model relates to a kind of stone coal vanadium-extracting roasting equipment.
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 equipment, and this stone coal vanadium-extracting roasting equipment has the size reduction of whole equipment, and cost is low, and investment reduces, roasting effect is good, the advantage that efficient is high.
According to stone coal vanadium-extracting roasting equipment of the present utility model, comprise: be used for the first roaster of stone coal decarbonization and be used for the second roaster that vanadium transforms, described the first roaster and the second roaster are the Fludized boiling stove, and described the second roaster links to each other with described the first roaster with roasting bone coal after the decarburization and carry out vanadium and transform in described the first roaster.
According to stone coal vanadium-extracting roasting equipment of the present utility model, by adopting the first roaster and the second roaster to be respectively applied to stone coal decarbonization and vanadium conversion, so that transforming, decarburization and vanadium in independent fluidized bed furnace, carry out respectively, avoided decarburization and vanadium to transform mutually restriction, and be convenient to control separately respectively the condition in the first roaster and the second roaster, roasting effect is good, and efficient is high.In addition, the size reduction of whole equipment, cost is low, and investment reduces.
Preferably, described Fludized boiling stove and accessory has: body of heater, and 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 described body of heater and by described air outlet and are connected with described body of heater inside.
According to Fludized boiling stove of the present utility model, by roasting is carried out in the bone coal fluidization, oxygen contacts with bone coal, and it is short that decarburization or vanadium transform required time, thereby roasting effect is good, and the vanadium transformation efficiency is high, compare with traditional rotary kiln, volume reduces greatly, has reduced equipment investment.And according to the uniformity of temperature profile of Fludized boiling stove of the present utility model, temperature is easy to control, is conducive to decarburization or vanadium and transforms.According to Fludized boiling stove of the present utility model, by burner SA additional heat, be conducive to control the condition of decarburization or vanadium conversion.
Preferably, described Fludized boiling stove and accessory has: body of heater, has furnace chamber in the described body of heater, one side of described body of heater is provided with cup section, described cup section radially outward protrudes and extends upward predetermined altitude from the bottom face of described body of heater along described body of heater, described cup section is limited with the cup that is communicated with described furnace chamber, wherein the roof in described cup section is provided with charge door, top at described body of heater is provided with outlet flue, bottom at described body of heater is provided with discharging opening, and the bottom of described body of heater is provided with burner opening; Burner, described burner are located in the described burner opening; Furnace roof, described furnace roof are arranged on the top of described body of heater for the top of sealing described body of heater; And bellows, described bellows have air inlet and air outlet, and described bellows link to each other with the bottom of described body of heater and are connected with described furnace chamber and described cup by described air outlet.
According to Fludized boiling stove of the present utility model, by the fluidization bone coal, air (or oxygen-enriched air) contacts with bone coal, and roasting effect is good, and it is short that decarburization or vanadium transform required time, and efficient is high, and the volume of roaster is little, and cost is low, and equipment investment is few.
Alternatively, the height of described burner opening equates substantially with the height of the end face of described cup section.
Alternatively, described the first roaster has identical structure with described the second roaster.
Alternatively, described the first roaster has different structures from described the second roaster.
Described furnace roof is the integral type furnace roof that is made of the refractory casting bed of material that cast forms.
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 Fludized boiling 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 charge door is provided with burner.
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 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.
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 schematic diagram according to the Fludized boiling stove in the stone coal vanadium-extracting roasting equipment of the utility model embodiment; With
Fig. 2 is the Fludized boiling stove schematic diagram according to the stone coal vanadium-extracting roasting equipment of another embodiment of the utility model.
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, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " " center "; " vertically "; " laterally "; " length "; " width "; " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " clockwise ", orientation or the position relationship of indications such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only be for convenience of description the utility model and simplified characterization, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " only are used for describing purpose, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the present utility model, except as otherwise noted, the implication of " a plurality of " is two or more, unless clear and definite restriction is arranged in addition.
In the utility model, unless clear and definite regulation and restriction are arranged in addition, broad understanding should be done in the terms such as term " installation ", " linking to each other ", " connection ", " fixing ", for example, can be to be fixedly connected with, and also can be to removably connect, or connect integratedly; Can be mechanical connection, also can be to be electrically connected; Can be directly to link to each other, also can indirectly link to each other by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can understand as the case may be the concrete meaning of above-mentioned term in the utility model.
In the utility model, unless clear and definite regulation and restriction are arranged in addition, First Characteristic Second Characteristic it " on " or D score can comprise that the first and second features directly contact, can comprise that also the first and second features are not directly contacts but by the other feature contact between them.And, First Characteristic Second Characteristic " on ", " top " and " above " comprise First Characteristic directly over Second Characteristic and oblique upper, or only represent that the First Characteristic level height is higher than Second Characteristic.First Characteristic Second Characteristic " under ", " below " and " below " comprise First Characteristic directly over Second Characteristic and oblique upper, or only represent that the First Characteristic level height is less than Second Characteristic.
The below describes the stone coal vanadium-extracting roasting equipment according to the utility model embodiment in detail.
Stone coal vanadium-extracting roasting equipment according to the utility model embodiment, comprise for the first roaster of stone coal decarbonization and the second roaster that transforms for vanadium, described the first roaster and the second roaster are the Fludized boiling stove, and described the second roaster links to each other with described the first roaster with roasting bone coal after the decarburization and carry out vanadium and transform in described the first roaster.
Stone coal vanadium-extracting roasting equipment according to the utility model embodiment, by adopting the first roaster and the second roaster to be respectively applied to stone coal decarbonization and vanadium conversion, so that transforming, decarburization and vanadium in independent fluidized bed furnace, carry out respectively, avoided decarburization and vanadium to transform mutually restriction, and be convenient to control separately respectively the condition in the first roaster and the second roaster, roasting effect is good, and efficient is high.In addition, the size reduction of whole equipment, cost is low, and investment reduces.
Describing below with reference to Fig. 1 can be as the first roaster of extracting vanadium from stone coal equipment and the Fludized boiling stove of the second roaster.
According to an embodiment of the present utility model, Fludized boiling stove 100A comprises body of heater 1A, furnace roof 17A and bellows 2A.Here, although furnace roof 17A is described side by side as independent parts and body of heater 1A, can not limit thus the utility model, for example, also can be with furnace roof 17A as a part that consists of body of heater 1A.
Body of heater 1A is inner to be limited a furnace chamber and has charge door 11aA, discharging opening 12aA, outlet flue 13aA and burner opening, be provided with burner SA in the burner opening, be used for spraying heavy oil in furnace chamber, the fuel such as natural gas or diesel oil are to provide the institute of roasting in furnace chamber calorific requirement.When the Fludized boiling stove according to the utility model embodiment is used as the decarburization roasting, temperature in the furnace chamber remains on 600-850 degree centigrade, preferably, remain on 650 degrees centigrade, be beneficial to the decarburization of bone coal, and for rotary kiln, be convenient to temperature in the stove is controlled to be above-mentioned suitable temperature.When the Fludized boiling stove according to the utility model embodiment transformed as alum, the temperature in the furnace chamber remained on 800-980 degree centigrade, more preferably, remains on 850 degrees centigrade, is beneficial to the conversion of vanadium.
The upper shed of furnace chamber is by furnace roof 17A sealing, and under shed can be by the base plate of body of heater 1A, top board or the sealing of the dividing plate between body of heater 1A and the bellows 2A of bellows 2A.The charge door 11aA of body of heater 1A is used for adding bone coal in furnace chamber, furnace charge after the roasting decarburization or that vanadium transforms is discharged from discharging opening 12aA, the flue gas that produces in the process after the decarburization roasting decarburization is discharged body of heater 1A from outlet flue 13aA, and collect, the operation such as dedusting.
For convenience, the below is described as an example of the Fludized boiling stove that is used for the decarburization roasting example, and as mentioned above, this Fludized boiling stove also can be used for alum and transform, and difference only is that internal temperature is different, and structure can be just the same.
In an example of the present utility model, body of heater 1A comprises the fire brick layer 112A of outermost metal furnace shell 110A, innermost layer and is positioned at middle insulating brick layer 111A.The skeleton function that metal furnace shell 110A plays, insulating brick layer 111A and fire brick layer 112A are arranged on the metal furnace shell 110A successively, insulating brick layer 111A prevents that the heat in the stove is delivered to metal furnace shell 110A by the good fire brick layer 112A of conductive performance, thereby avoid the excess Temperature of metal furnace shell 110A, reduced the loss of heat.
Bellows 2A has air inlet 21A and air outlet (not shown), and bellows 2A is arranged on the bottom of body of heater 1A and is connected by the inside of air outlet with body of heater 1A.The air inlet 21A of bellows 2A can link to each other with the blower fan (not shown), and for air blast in bellows 2A, the wind in the bellows 2A is injected in the furnace chamber by air outlet, so that the bone coal that enters in the fluidized bed furnace is calcined with fluidised form.
Bellows 2A can be connected with the inside (furnace chamber) of body of heater 1A by blast cap 3A.More specifically, the top board of the lower end of blast cap 3A and bellows 2A (or the base plate of body of heater 1A, or the dividing plate between body of heater 1A and the bellows 2A) the upper corresponding hole that arranges is communicated with, and the upper end is passed the diapire of body of heater 1A and stretched in the body of heater 1A, and the blast cap 3A of any suitable quantity can be set.In addition, blast cap 3A can arrange on the diapire of body of heater 1A equably, thus so that bone coal better fluidization in the fluidized bed furnace furnace chamber.In order to prevent that the part that blast cap 3A stretches in the furnace chamber from burning out, on the interior diapire of body of heater 1A, can pour into a mould castable refractory, the thickness of the refractory casting bed of material stretches into the height of the part in the furnace chamber more than or equal to blast cap 3A, thereby blast cap 3A is played a protective role.
Furnace roof 17A is installed in the top of body of heater 1A, with the upper end open of closed furnace body 1A.
According to the Fludized boiling stove of the utility model embodiment, by bone coal is carried out fluosolids roasting, oxygen contacts with bone coal, shortened decarburization or 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 Fludized boiling furnace temperature of the present utility model, for example can be controlled at 650 degrees centigrade, be conducive to decarburization.According to Fludized boiling stove of the present utility model, by burner SA additional heat, be conducive to control the condition of decarburization or vanadium conversion.
According to an example of the present utility model, furnace roof 17A is become one by the castable refractory cast, and castable refractory for example is refractory cement.With castable refractory pouring integrated furnace roof 17A, so furnace roof 17A's 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 17A, therefore the size of furnace roof 17A can increase, thereby the size of body of heater 1A can increase, can increase thus the capacity of Fludized boiling 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 1A can be divided into three parts: the stage casing 15A of columned hypomere 14A, frustum-like shape and columned epimere 16A, and wherein the diameter of epimere 16A is greater than the diameter of hypomere 14A, and the Fludized boiling 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 17A is the integral type furnace roof, so the size of body of heater 1A 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 fluidization fluidized bed furnace that the lower portion of furnace body cross-sectional area is no more than 138 square metres, according to Fludized boiling 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 17A is arch, can further increase thus the structural stability of furnace roof.Because furnace roof 17A is integral type, so the arch angle of arch furnace roof 17A can be more than or equal to 105 degree, and namely the size of furnace roof 17A increases.
In an example of the present utility model, outlet flue 13aA is formed on the 13A of smoke section of body of heater 1A, and the innermost layer of the 13A of smoke section is metal furnace shell 110A for the refractory casting bed of material, the outermost layer of the one that cast forms, and the intermediate layer is insulating brick layer 111A.Thus, be used for pouring into a mould the 13A of smoke section 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 11aA and discharging opening 12aA are respectively formed at feeder 11A and the discharging portion 12A of body of heater 1A, the innermost layer of feeder 11A and discharging portion 12A is that the refractory casting bed of material, outermost layer are metal furnace shell 110A, and the intermediate layer is insulating brick layer 111A.
In the further example of the utility model, the Fludized boiling stove further comprises furnace roof cover 171A, and furnace roof cover 171A is arranged on the outer surface of furnace roof 17A.By furnace roof cover 171A is set at furnace roof 17A, can play a protective role to furnace roof 17A, and can increase the intensity of furnace roof 17A.
Preferably, in charge door 11aA, be 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 Fludized boiling 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.
By the furnace roof 17A of (integral body) formula that pours into an integrated entity with castable refractory, it is flexible to increase furnace roof 17A, 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 17A can increase, thereby the size of body of heater 1A can increase, and has guaranteed roasting quality.
As shown in Figure 2, according to another embodiment of the present utility model, Fludized boiling stove 100E comprises body of heater 1E, furnace roof 2E, burner SE and bellows 3E.Although here furnace roof 2E is described side by side as independent parts and body of heater, can not limit thus the utility model, for example, also can be with furnace roof 2E as a part that consists of body of heater 1E.
Particularly, can have furnace chamber 5E in the body of heater 1E, the side of body of heater 1E is provided with the 4E of cup section, the 4E of cup section radially outward protrudes and extends upward predetermined altitude H from the bottom face of body of heater 1E along body of heater 1E's, the 4E of cup section is limited with the cup 41E that is communicated with furnace chamber 5E, wherein the roof at the 4E of cup section is provided with charge door 11E, and charge door 11E is used for adding bone coal in furnace chamber 5E.Be provided with outlet flue 12E on the top of body of heater 1E, the flue gas that produces in the roasting process is discharged roaster from outlet flue 12E.Be provided with discharging opening 13E in the bottom of body of heater 1E, the furnace charge after the roasting is discharged from discharging opening 13E.The bottom of body of heater 1E is provided with burner opening, and burner SE is located in the described 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.Alternatively, the height of described burner opening equates substantially with the height of the end face of described cup section.In like manner, when the Fludized boiling stove according to the utility model embodiment was used as the decarburization roasting, the temperature in the furnace chamber remained on 600-850 degree centigrade, preferably, remains on 650 degrees centigrade, is beneficial to the decarburization of bone coal.When the Fludized boiling stove according to the utility model embodiment transformed as alum, the temperature in the furnace chamber remained on 800-980 degree centigrade, more preferably, remains on 850 degrees centigrade, is beneficial to the conversion of vanadium.
Furnace roof 2E is arranged on the top of body of heater 1E for the top of closed furnace body 1E.
Bellows 3E has air inlet 31E and air outlet 32E, and bellows 3E links to each other with the bottom of body of heater 1E and is connected with furnace chamber 5E and cup 41E by air outlet 32E.The air inlet 31E of bellows 3E can link to each other with the blower fan (not shown), and for air blast in bellows 3E, the wind in the bellows 3E is injected in furnace chamber 5E and the cup 41E by air outlet 32E, so that the bone coal that enters in the roaster is calcined with fluidised form.
According to the Fludized boiling 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.
Fludized boiling stove according to the utility model embodiment is provided with the 4E of cup section in the side of body of heater 1E, the 4E of cup section is limited with the cup 41E that is communicated with furnace chamber 5E, cup 41E and furnace chamber 5E be communicated with bellows 3E by air outlet 32E, increased and made the fluidised space of bone coal in the roaster.。
For convenience, the below is described as an example of the Fludized boiling stove that is used for the decarburization roasting example, and as mentioned above, this Fludized boiling stove also can be used for alum and transform, and difference only is that internal temperature is different, and structure can be just the same.
As shown in Figure 1, according to an example of the present utility model, the bottom of body of heater 1E can be provided with the top board of base plate 14(or bellows 3E, or the dividing plate between body of heater 1E and the bellows 3E), the end face of bellows 3E contacts with base plate 14, and base plate 14 is provided with the through hole corresponding with air outlet 32E 141, is provided with blast cap 6E at through hole 141 places on the base plate 14, base plate 14 is provided with the refractory casting bed of material (142), and the refractory casting bed of material is stretched out in the upper end of blast cap 6E.
Need to prove that blast cap 6E can arrange equably on the base plate of body of heater 1E, thus so that bone coal better fluidization in furnace chamber.In order to prevent that the part that blast cap 6E stretches in the furnace chamber 5E from burning out, on the inner bottom plating 14 of body of heater 1E, can pour into a mould castable refractory, the thickness of the refractory casting bed of material stretches into the height of the part in the furnace chamber more than or equal to blast cap 6E, thereby blast cap 6E is played a protective role.
As shown in Figure 1, according to an example of the present utility model, body of heater 1E is that annular cross section and the 4E of cup section have the general rectangular cross section.Thus, can conveniently offer charge door 11E in the upper end of the 4E of cup section.Body of heater 1E is divided into columniform hypomere 15E, fall stage casing 16E and the columniform epimere 17E of truncated cone shape.Wherein the diameter of epimere 17E is greater than the diameter of hypomere 15E, fluidized roaster according to this example also becomes one-level expansion roaster thus, because the increase of the diameter of epimere 17E, thereby reduced the air space rate, control dust rate to a certain degree, guaranteed decarburization and the transformation efficiency of flue dust.
According to an example of the present utility model, be provided with the burner (not shown) in the charge door 11E, 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.
As shown in Figure 1, according to an example of the present utility model, the 4E of cup section and body of heater 1E comprise the fire brick layer 8E of outermost metal furnace shell 7E, innermost layer and are positioned at middle insulating brick layer 9E.The skeleton function that metal furnace shell 7E plays, insulating brick layer 9E and fire brick layer 8E are arranged on the metal furnace shell 7E successively, insulating brick layer 9E prevents that the heat in the stove is delivered to metal furnace shell 7E by the good fire brick layer 8E of conductive performance, thereby avoid the excess Temperature of metal furnace shell 7E, reduced the loss of heat.
As shown in Figure 1, according to an example of the present utility model, roaster further comprises furnace roof cover 22E, and furnace roof cover 22E is arranged on the outer surface of furnace roof 2E, and furnace roof 2E is made of the refractory casting bed of material 21E that the one cast forms.In other words, furnace roof 2E is become one by the castable refractory cast, and castable refractory for example is refractory cement.With castable refractory pouring integrated furnace roof 2E, can improve the overall structure performance of furnace roof, handling ease, efficient is high, has reduced cost.By furnace roof cover 22E is set at furnace roof 2E, can play a protective role to furnace roof 2E, and can increase the intensity of furnace roof 2E.
As shown in Figure 1, according to an example of the present utility model, the height of burner opening equates substantially with the height of the end face of the 4E of cup section, thus so that the changing effect of the decarburization of bone coal or vanadium is better.
As shown in Figure 1, according to an example of the present utility model, discharging opening 13E comprises contiguous body of heater 1E bottom and is located at underflow discharging opening 131E on the body of heater 1E sidewall, and is located on the sidewall of body of heater 1E and the overflow discharging opening 132E between charge door 11E and underflow discharging opening 131E.Thus, can conveniently control the discharging of roaster.
As shown in Figure 1, according to an example of the present utility model, furnace roof 2E can be arch.Can further increase thus the structural stability of furnace roof.Because furnace roof 2E can be for integral type, so the arch angle of arch furnace roof 2E can be more than or equal to 105 degree, can so that the size of furnace roof 2E increase.
According to Fludized boiling stove of the present utility model, compare with traditional rotary kiln, by the fluidization bone coal, air (or oxygen-enriched air) contacts with bone coal, roasting effect is good, and it is short that vanadium transforms required time, and efficient is high, and the volume of roaster is little, and cost is low, and equipment investment is few.
Fludized boiling stove according to present embodiment is provided with cup section in a side of body of heater, cup section is limited with the cup that is communicated with furnace chamber, cup and furnace chamber be communicated with bellows by air outlet, increased the fluidization space in the roaster.
Alternatively, the first roaster for stone coal decarbonization has identical structure with the second roaster that is used for the vanadium conversion.That is to say that the first roaster and the second roaster can be the Fludized boiling stove of above-mentioned embodiment as shown in fig. 1.Certainly, the first roaster and the second roaster can be the Fludized boiling stove of above-mentioned embodiment as shown in Figure 2.
Alternatively, the first roaster for stone coal decarbonization has different structures from the second roaster that is used for the vanadium conversion.Here be understandable that the first roaster can be the Fludized boiling stove of above-mentioned embodiment as shown in fig. 1, and the second roaster is the Fludized boiling stove of above-mentioned embodiment as shown in Figure 2.Perhaps, the first roaster is the Fludized boiling stove of above-mentioned embodiment as shown in Figure 2, and the second roaster is the Fludized boiling stove of above-mentioned embodiment as shown in fig. 1.
Stone coal vanadium-extracting roasting equipment according to the utility model embodiment, carry out stone coal decarbonization and vanadium conversion by adopting the first roaster and the second roaster segmentation, so that transforming, decarburization and vanadium in independent fluidized bed furnace, carry out respectively, avoided decarburization and vanadium to transform mutually restriction, and be convenient to control separately respectively the condition in the first roaster and the second roaster, roasting effect is good, and efficient is high.In addition, the size reduction of whole equipment, cost is low, and investment reduces.
In the description of this specification, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present utility model or the example in conjunction with specific features, structure, material or the characteristics of this embodiment or example description.In this manual, the schematic statement of above-mentioned term not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or characteristics can be with suitable mode combinations in any one or more embodiment or example.
Although the above has illustrated and has described embodiment of the present utility model, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art in scope of the present utility model, can change above-described embodiment in the situation that does not break away from principle of the present utility model and aim, modification, replacement and modification.
Claims (10)
1. stone coal vanadium-extracting roasting equipment, it is characterized in that, comprise: be used for the first roaster of stone coal decarbonization and be used for the second roaster that vanadium transforms, described the first roaster and the second roaster are the Fludized boiling stove, and described the second roaster links to each other with described the first roaster with roasting bone coal after the decarburization and carry out vanadium and transform in described the first roaster.
2. stone coal vanadium-extracting roasting equipment according to claim 1 is characterized in that, described Fludized boiling stove and accessory has:
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.
3. stone coal vanadium-extracting roasting equipment according to claim 1 is characterized in that, described Fludized boiling stove and accessory has:
Body of heater, has furnace chamber in the described body of heater, one side of described body of heater is provided with cup section, described cup section radially outward protrudes and extends upward predetermined altitude from the bottom face of described body of heater along described body of heater, described cup section is limited with the cup that is communicated with described furnace chamber, and wherein the roof in described cup section is provided with charge door, is provided with outlet flue on the top of described body of heater, bottom at described body of heater is provided with discharging opening, and the bottom of described body of heater is provided with burner opening;
Burner, described burner are located in the described burner opening;
Furnace roof, described furnace roof are arranged on the top of described body of heater for the top of sealing described body of heater; With
Bellows, described bellows have air inlet and air outlet, and described bellows link to each other with the bottom of described body of heater and are connected with described furnace chamber and described cup by described air outlet.
4. stone coal vanadium-extracting roasting equipment according to claim 3 is characterized in that, the height of described burner opening equates with the height of the end face of described cup section.
5. each described stone coal vanadium-extracting roasting equipment is characterized in that according to claim 1-4, and described the first roaster has identical structure with described the second roaster.
6. each described stone coal vanadium-extracting roasting equipment is characterized in that according to claim 1-4, and described the first roaster has different structures from described the second roaster.
7. according to claim 2 or 3 described stone coal vanadium-extracting roasting equipment, it is characterized in that described furnace roof is the integral type furnace roof that is made of the refractory casting bed of material that cast forms.
8. according to claim 2 or 3 described stone coal vanadium-extracting roasting equipment, it is characterized in that described charge door is provided with burner.
9. according to claim 2 or 3 described stone coal vanadium-extracting roasting equipment, it is characterized in that, described body of heater comprise the fire brick layer of outermost metal furnace shell, innermost layer and be positioned in the middle of the insulating brick layer.
10. according to claim 2 or 3 described stone coal vanadium-extracting roasting equipment, it 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, the intermediate layer is the insulating brick layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220345050XU CN202792967U (en) | 2012-07-16 | 2012-07-16 | Roasting equipment for vanadium extracted from stone coal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220345050XU CN202792967U (en) | 2012-07-16 | 2012-07-16 | Roasting equipment for vanadium extracted from stone coal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202792967U true CN202792967U (en) | 2013-03-13 |
Family
ID=47820219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220345050XU Expired - Lifetime CN202792967U (en) | 2012-07-16 | 2012-07-16 | Roasting equipment for vanadium extracted from stone coal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202792967U (en) |
-
2012
- 2012-07-16 CN CN201220345050XU patent/CN202792967U/en not_active Expired - Lifetime
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| GR01 | Patent grant | ||
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Granted publication date: 20130313 |