CN101900484A - Fluidized calcining furnace - Google Patents
Fluidized calcining furnace Download PDFInfo
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- CN101900484A CN101900484A CN2009102372101A CN200910237210A CN101900484A CN 101900484 A CN101900484 A CN 101900484A CN 2009102372101 A CN2009102372101 A CN 2009102372101A CN 200910237210 A CN200910237210 A CN 200910237210A CN 101900484 A CN101900484 A CN 101900484A
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- heater
- furnace roof
- furnace
- fluidized roaster
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Abstract
The invention discloses a fluidized calcining furnace which comprises a furnace body, a furnace top and an air box, wherein the furnace body comprises a feed inlet, a discharge outlet and a smoke outlet; the furnace top is one-piece and arranged at the top part of the furnace body; and the air box comprises an air inlet and an air outlet, and the air box is arranged below the furnace body and communicated with the interior of the furnace body through the air outlet. As the furnace top is one-piece, the fluidized calcining furnace has good softness, high structural stability, high safety performance, good thermal stability and good sealing performance. Furthermore, due to good structural stability and good thermal stability of the furnace top, the size of the furnace top can be increased, thereby being capable of increasing the size and the furnace capacity of the furnace body and improving the calcining quality and the production efficiency.
Description
Technical field
The present invention relates to a kind of fluidized roaster, especially relate to a kind of fluidized roaster with integral type furnace roof.
Background technology
Fluidized roaster is the pyrometallurgy roasting apparatus of using always, is used for mineral aggregate is carried out roasting.The furnace roof of tradition fluidized roaster is built into by refractory brick, and the flexibility of furnace roof is poor, structural stability and poor heat stability thus, and in use fall brick phenomenon, poor stability easily.The furnace roof that refractory brick is built into leaks gas easily, and the feature of environmental protection is poor, and the sulfur dioxide gas formation sulfuric acid that exposes from body of heater corrodes furnace shell easily.
In addition, the size of the furnace roof that is built into refractory brick is restricted, thereby has limited the size of roaster, and the cross-sectional area of for example traditional fluidized roaster lower end is no more than 138 square meters, and the furnace roof angle is less than 98 degree, so the maximization of roaster is restricted.In order to be built into furnace roof with refractory brick, need process refractory brick, so that obtain required various special form bricks, and refractory brick brick type quantity causes processing difficulties more, has therefore increased the difficulty of building furnace roof, has increased cost.
In addition, the outlet flue of traditional fluidized roaster, charging aperture and discharging opening also are to be built into refractory brick and insulating brick, so the processed complex of outlet flue, charging aperture and discharging opening, the cost height.
Summary of the invention
The present invention is intended to solve at least one of technical problem that exists in the prior art.For this reason, one object of the present invention is to propose a kind of fluidized roaster with integral type furnace roof.
Fluidized roaster according to the present invention comprises: body of heater, and described body of heater has charge door, discharging opening and outlet flue; Furnace roof, described furnace roof are integral type and top that be arranged on 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 the inside of body of heater.
According to fluidized roaster of the present invention, therefore flexible good because furnace roof is the integral type furnace roof, structural stability and security performance height, heat endurance and good seal performance, air tight.And then because the 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 fluidized roaster become possibility, have improved roasting quality and production efficiency.
In addition, also have following additional technical feature according to fluidized roaster of the present invention:
Described integral type furnace roof is made of the refractory casting bed of material that cast forms.By furnace roof with castable refractory cast integral type, the good integrity of furnace roof, handling ease, the efficient height 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 other body of heater layers can be set in metal furnace shell the inside, the innermost layer of body of heater is a fire brick layer, and by the insulating brick layer is set in the centre, the temperature that can prevent the metal furnace shell is too high, because the heat-conductive characteristic of fire brick layer is good, therefore, the insulating brick layer can prevent that the heat in the stove is transmitted to the metal furnace shell by fire brick layer by being set.
Described outlet flue is formed on the smoke portion of body of heater, and the innermost layer of smoke 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.
Described charging aperture and discharging opening are respectively formed at the 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.
The fluidized roaster according to the present invention, the innermost layer of the body of heater at outlet flue, charging aperture and discharging opening place (being smoke portion, 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 thus innermost layer can be with the castable refractory formula that pours into an integrated entity, thereby overall performance is good, cast is fast, the working (machining) efficiency height need not to process various heterotypic fire bricks, and cost reduces.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 fluidized roaster of the present invention, described furnace roof cover is arranged on the outer surface of furnace roof.By the furnace roof cover is set on 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 the 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 fluidized roaster of the present invention and enlarge roaster, promptly body of heater passes through the stage casing size expansion in the upward direction of frustum-like shape, thereby has improved the capacity of roaster, has improved production efficiency.
The cross-sectional area of described hypomere 〉=145 square metre.According to fluidized roaster of the present invention, 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 the restriction to the body of heater size of split type furnace roof that refractory brick is built into.
Described furnace roof is an arch.By the furnace roof of arch is set, can further increase the structural stability of furnace roof.
The arch angle of described arch furnace roof 〉=105 degree.As above analyze, 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.
Additional aspect of the present invention and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Description of drawings
Above-mentioned and/or additional aspect of the present invention 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 fluidized roaster of the embodiment of the invention.
The specific embodiment
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Below by the embodiment that is described with reference to the drawings is exemplary, only is used to explain the present invention, and can not be interpreted as limitation of the present invention.
Need to prove, in description of the invention, term " on ", D score, " in " " top ", " end ", " laterally ", " vertically " etc. indicated orientation and to close be based on orientation shown in the drawings and position relation in the position, only be used to make things convenient for description of the invention, and can not be interpreted as limitation of the present invention.
Below with reference to the fluidized roaster of Fig. 1 detailed description according to the embodiment of the invention.
As shown in Figure 1, the fluidized roaster according to the embodiment of the invention comprises body of heater 1, furnace roof 17 and bellows 2.Here,, can not limit the present invention thus though furnace roof 17 is described side by side as independent parts and body of heater 1, for example, also can be with furnace roof 17 as a part that constitutes body of heater 1.
Body of heater 1 inside limits a furnace chamber and has charge door 11a, discharging opening 12a and outlet flue 13a, and 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, the 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 in furnace chamber adding and treats roaster mix, and the furnace charge after the roasting 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, operation such as dedusting.
In an example of the present invention, 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 temperature of metal furnace shell 110 too high, reduced the loss of heat.
According to an example of the present invention, furnace roof 17 is one deck refractory casting bed of material.In other words, furnace roof 17 is become one by castable refractory cast, and castable refractory for example is a refractory cement.With castable refractory cast integral type furnace roof 17, can improve the overall structure performance of furnace roof, handling ease, the efficient height has reduced cost.
As shown in Figure 1, according to an example of the present invention, 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 fluidized roaster according to this example also becomes one-level expansion roaster thus, because the diameter of epimere increases, thereby increased the volume of furnace chamber, improved the capacity of roaster, improved production efficiency.
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 invention, 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 that the body of heater lower cross section is long-pending to be no more than traditional fluidized roaster of 138 square metres, according to fluidized roaster of the present invention, capacity can significantly increase.
As shown in Figure 1, in an example of the present invention, monoblock type furnace roof 17 is an arch, can further increase the structural stability of furnace roof thus.Because furnace roof 17 is an integral type, so the arch angle of arch furnace roof 17 can be more than or equal to 105 degree, and promptly the size of furnace roof 17 increases.
In an example of the present invention, outlet flue 13a is formed on the smoke portion 13 of body of heater 1, and the innermost layer of smoke portion 13 is a 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 an insulating brick layer 111.Thus, be used to pour into a mould the smoke portion 13 of the integral type that forms, promptly 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 reduces.
Similarly, in another example of the present invention, charging aperture 11a and discharging opening 12a are respectively formed at the 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 an insulating brick layer 111.
In the further example of the present invention, fluidized roaster further comprises furnace roof cover 171, and furnace roof cover 171 is arranged on the outer surface of furnace roof 17.By furnace roof cover 171 is set on furnace roof 17, can play a protective role to furnace roof 17, and can increase the intensity of furnace roof 17.
According to the fluidized roaster of the embodiment of the invention, the 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 increased the capacity of fluidized roaster, has improved roasting quality and production efficiency.
Although illustrated and described embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple variation, modification, replacement and modification to these embodiment under the situation that does not break away from principle of the present invention and aim, scope of the present invention is limited by claim and equivalent thereof.
Claims (10)
1. a fluidized roaster is characterized in that, comprising:
Body of heater, described body of heater has charge door, discharging opening and outlet flue;
Furnace roof, described furnace roof are integral type and top that be arranged on 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 body of heater and by air outlet and are connected with body of heater inside.
2. fluidized roaster according to claim 1 is characterized in that, described integral type furnace roof is made of the refractory casting bed of material that cast forms.
3. fluidized roaster 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. fluidized roaster according to claim 3 is characterized in that, described outlet flue is formed on the smoke portion of body of heater, and the innermost layer of described smoke 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.
5. fluidized roaster according to claim 3, it is characterized in that, described charging aperture and discharging opening are respectively formed at the 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. fluidized roaster 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. fluidized roaster according to claim 1 is characterized in that, described body of heater is divided into the 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. fluidized roaster according to claim 7 is characterized in that, the cross-sectional area of described hypomere 〉=145 square metre.
9. according to each described fluidized roaster among the claim 1-8, it is characterized in that described furnace roof is an arch.
10. fluidized roaster according to claim 9 is characterized in that, the arch angle of described arch furnace roof 〉=105 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910237210 CN101900484B (en) | 2009-11-05 | 2009-11-05 | Fluidized calcining furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910237210 CN101900484B (en) | 2009-11-05 | 2009-11-05 | Fluidized calcining furnace |
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| CN101900484A true CN101900484A (en) | 2010-12-01 |
| CN101900484B CN101900484B (en) | 2013-04-03 |
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| CN 200910237210 Active CN101900484B (en) | 2009-11-05 | 2009-11-05 | Fluidized calcining furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102564126A (en) * | 2012-03-01 | 2012-07-11 | 中国恩菲工程技术有限公司 | Copper-nickel high-sulfonium fluidization roasting furnace |
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| US4453253A (en) * | 1981-06-10 | 1984-06-05 | Union Carbide Corporation | Electric arc furnace component |
| US5999558A (en) * | 1998-08-13 | 1999-12-07 | Ucar Carbon Technology Corporation | Integral spray cooled furnace roof and fume elbow |
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|---|---|---|---|---|
| CN2038108U (en) * | 1988-02-22 | 1989-05-24 | 昆明冶金研究所 | Equipment of dearsenifying and desulphurization by ebulient roasting for the concentrate tin ore |
| CN2508196Y (en) * | 2001-10-23 | 2002-08-28 | 洛阳市洛华粉体工程特种耐火材料厂 | Furnace body structure of fluiding roaster |
| CN101261079B (en) * | 2007-09-11 | 2010-12-22 | 李朝侠 | Large area air outlet fluidized calcining furnace refractory lining |
| CN100578127C (en) * | 2007-09-11 | 2010-01-06 | 李朝侠 | Fluidized calcining furnace ball arc furnace top and method of forming same |
| CN201279454Y (en) * | 2008-08-28 | 2009-07-29 | 六合天融（北京）环保科技有限公司 | Eddying-flow flash subdivision furnace suitable for fine subdivision of material into powder and gas product |
| CN201569289U (en) * | 2009-11-06 | 2010-09-01 | 中国恩菲工程技术有限公司 | Fluidization roasting furnace |
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2009
- 2009-11-05 CN CN 200910237210 patent/CN101900484B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4453253A (en) * | 1981-06-10 | 1984-06-05 | Union Carbide Corporation | Electric arc furnace component |
| US5999558A (en) * | 1998-08-13 | 1999-12-07 | Ucar Carbon Technology Corporation | Integral spray cooled furnace roof and fume elbow |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102564126A (en) * | 2012-03-01 | 2012-07-11 | 中国恩菲工程技术有限公司 | Copper-nickel high-sulfonium fluidization roasting furnace |
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| CN101900484B (en) | 2013-04-03 |
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Application publication date: 20101201 Assignee: Hunan Zhuye Nonferrous Metals Co.,Ltd. Assignor: CHINA ENFI ENGINEERING Corp. Contract record no.: X2022980011974 Denomination of invention: Fluidized roaster Granted publication date: 20130403 License type: Common License Record date: 20220809 |