CN100549607C - External combustion vertical kiln - Google Patents
External combustion vertical kiln Download PDFInfo
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- CN100549607C CN100549607C CNB2006100370324A CN200610037032A CN100549607C CN 100549607 C CN100549607 C CN 100549607C CN B2006100370324 A CNB2006100370324 A CN B2006100370324A CN 200610037032 A CN200610037032 A CN 200610037032A CN 100549607 C CN100549607 C CN 100549607C
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Abstract
The present invention relates to the external combustion vertical kiln that a kind of fuel and lump material separate.Be specially adapted to the calcining of lime.It comprises the kiln body of being located on the basis, described kiln body comprises superposed preheating chamber, the calcining compartment at middle part and the cooling chamber of bottom, preheating chamber, calcining compartment and cooling chamber are to connect mutually, described calcining compartment top is that arch forms arch of furnace, described preheating chamber is the chimney-like setting and constructs in calcining compartment top highest point, the preheating chamber upper shed is a charge door, described cooling chamber is positioned at the calcining compartment below, the cooling chamber bottom sets out the material passage, described calcining compartment inner chamber is made up of solid accumulation space and heat supply space, and the heat supply space of described calcining compartment is connected with can provide the high-temperature flue gas calcining to desire the exhaust gases passes of processing materials or be provided with to make fuel direct naked light in calcining compartment burn and calcine the fuel nozzle of desiring processing materials.Output of the present invention is big, and fuel can fully burn, and energy consumption is low, processing ease, and the quality height, the brick mix structure of employing, cost is low.
Description
(1) technical field
The present invention relates to the architecture advances of the brick mix structure shaft kiln of lump materials such as a kind of lime burning, gangue, burnedc lay, gypsum, the external combustion vertical kiln that especially a kind of fuel and lump material separate.Be specially adapted to the calcining of lime.
(2) background technology
Lime is the important raw and processed materials of industries such as metallurgy, chemical industry, agricultural, health, building.General employing brick mix structure shaft kiln is calcined and is made, and its calcining manners is: coal and lime stone are added mixed combustion in the kiln body in the lump.This " internal combustion " mode exists following problem: fired coal combustion is insufficient, both wastes energy, and forms " dross " again easily in the kiln body, lime is blocked in the kiln body, even may causes landslide; Lime calcining is inhomogeneous, and what have does not grill thoroughly, and the burning quality again that has reduces; Coal-fired and lime stone mixes burning and easily lime is polluted, and reduces the lime quality; Calcination process is difficult for regulating control.
(3) summary of the invention
The external combustion vertical kiln that the material (as lime stone) that the object of the present invention is to provide a kind of fuel and desire to calcine separates.
For achieving the above object, the present invention is by the following technical solutions:
A kind of external combustion vertical kiln, comprise the kiln body of being located on the basis, it is characterized in that: described kiln body comprises superposed preheating chamber, the calcining compartment at middle part and the cooling chamber of bottom, preheating chamber, calcining compartment and cooling chamber are to connect mutually, described calcining compartment top is that arch forms arch of furnace, described preheating chamber is the chimney-like setting and constructs in calcining compartment top highest point, the preheating chamber upper shed is a charge door, described cooling chamber is positioned at the calcining compartment below, the cooling chamber bottom sets out the material passage, described calcining compartment inner chamber is made up of solid accumulation space and heat supply space, and the heat supply space of described calcining compartment is connected with can provide the high-temperature flue gas calcining to desire the exhaust gases passes of processing materials or be provided with to make fuel direct naked light in calcining compartment burn and calcine the fuel nozzle of desiring processing materials.
During production, only lime stone need be added in the kiln body and pile up sedimentation.Because tapping channel can use the device for discharging shutoff, or with the method shutoff of accumulation naturally, lime stone will fill up cooling chamber, and (being in the calcining compartment) piles up naturally between cooling chamber and preheating chamber again, fills up preheating chamber at last.Heat supply space, the particularly existence owing to arch of furnace produce a bigger heat supply space in addition outside the solid accumulation space and calcining compartment is removed.Lime stone in calcining compartment, the high-temperature flue gas that fuel (combustion gas, coal dust or the fuel oil etc.) burning of high-temperature flue gas that is provided by exhaust gases passes or fuel nozzle ejection produces is calcined, afterwards, high-temperature flue gas in the said process is through the up discharge of preheating chamber (preheating chamber is similar to the function of the chimney of calcining compartment), it can be the nature discharging, also can discharge by force with air exhauster, or discharging again after the dedusting.The calcining certain hour, after lime stone in the main calcination area (upper and lower one section zone of nearly preheating chamber lower opening) is grilled thoroughly, by mode from the discharging of cooling chamber bottom, lime stone in the kiln body is sunk, a part of lime stone of preheating enters main calcination area and is calcined, simultaneously, reinforced from the upper shed of preheating chamber.
The arch of furnace structure had both been strengthened whole kiln body intensity, and bigger heat supply space is provided again, with respect to less main calcination area, grilled thoroughly than being easier to, and had improved efficient.
Technique scheme can also be further improved by following technical measures.
Be provided with the sub-material platform on band pinnacle in the middle of the described cooling chamber, the sub-material platform is separated in two cooling chamber, and a side of sub-material platform is provided with tapping channel or both sides are respectively arranged with tapping channel.The sub-material platform plays guide function, is convenient to smooth discharging, also helps material heat radiation cooling, has also improved kiln body intensity.When all there is tapping channel both sides, also can adopt the way of side calcining, only with side cooling material, opposite side can quit work.
The external combustion chamber that is provided with of described kiln, exhaust gases passes is connected between combustion chamber and the calcining compartment.Adopt the external mode in combustion chamber to help the abundant burning of fuel, also help the discharging of waste residue, also be convenient to the adjusting control of calcining heat.
Crossed at least one blast pipe in the tapping channel of described cooling chamber bottom, the blast pipe tube wall has a plurality of fresh air inlets, and blast pipe is connected with induced-draught fan, and the discharge pipe of induced-draught fan is communicated with the combustion chamber.This structure can be accelerated the cooling of material, and the air of preheating can be provided for the combustion chamber again, has both utilized energy fully, has also improved efficient.
The cross section of described preheating chamber, calcining compartment and cooling chamber is all rectangular, and the angle of a preheating chamber lower edge and determined inclined-plane, a cooling chamber upper edge and horizontal plane is less than the natural stocking angle of desiring processing materials.
The sidewall of described calcining compartment is provided with observes door.This observation door can be convenient to observe the material after the processing that nature piles up, and product quality easy to control improves the quality of production.
Described preheating chamber charge door is furnished with draught hood, be equipped with tremie pipe in the draught hood, seal between draught hood upper end and the tremie pipe, the draught hood lower end communicates with the charge door butt joint, and the draught hood side is provided with menifold and directly communicates with air exhauster or communicate indirectly with air exhauster by deduster.
Described tremie pipe is higher than draught hood or the tremie pipe upper end is furnished with end cap.The way of tremie pipe is increased in employing, can cancel end cap, realizes continuous charging.
Described kiln body is a brick mix structure, and its outer steel frame that is provided with, steel frame are affixed with preheating chamber, calcining compartment, cooling chamber respectively.Steel frame plays booster action to the kiln body.
The cross section of described preheating chamber, calcining compartment and cooling chamber is rounded or oval.
The present invention has the following advantages:
1, fuel can be fast, completing combustion, can the unit's of making kiln body output improve greatly;
2, can regulate temperature by regulating coefficient of excess air, satisfy the needed temperature conditions of calcining materials;
3, owing to be the naked light burning, fuel can fully burn, and comprises that the fugitive constituent of fuel also can fully burn.With in the past shaft kiln pre-heating fuel fugitive constituent is volatilized to slattern in vain and compare, cut down the consumption of energy greatly.
4, the calcining situation of material can directly be observed at peep hole, and processing ease has improved quality stability;
5, it is few to produce lime impurity, the quality height;
6, be difficult for " dross " in the kiln body, blanking is unobstructed;
7, the brick mix structure of this shaft kiln employing, intensity is big, and the life-span is long, and construction cost is low;
8, pollution is little, helps environmental protection.
(4) description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a work schematic diagram of the present invention.
(5) specific embodiment
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
As shown in the figure, a kind of external combustion vertical kiln, comprise the kiln body of being located on the basic D 1, described kiln body comprises superposed preheating chamber 2, the calcining compartment 3 at middle part and the cooling chamber 4 of bottom, preheating chamber 2, calcining compartment 3 and cooling chamber 4 are to connect mutually, described calcining compartment 3 tops are that arch forms arch of furnace 12, described preheating chamber 2 is the chimney-like setting and constructs in calcining compartment 3 top highest points, preheating chamber 2 upper sheds are charge door, described cooling chamber 4 is positioned at calcining compartment 3 belows, cooling chamber 4 bottoms set out material passage 5, described calcining compartment inner chamber is made up of solid accumulation space E and heat supply space F, and the exhaust gases passes 6 that can provide the high-temperature flue gas calcining to desire processing materials is provided the heat supply space F of described calcining compartment 3.
Be provided with the sub-material platforms 7 on band pinnacle in the middle of the described cooling chamber 4, sub-material platform 7 is separated in two cooling chamber, and sub-material platform 7 both sides are provided with tapping channel 5 respectively.
Described kiln body 1 peripheral hardware combuster 8, exhaust gases passes 6 is connected between combustion chamber 8 and the calcining compartment 3.There is shown two combustion chambers 8, also can adopt a combustion chamber 8 to connect the mode of two exhaust gases passes 6.Two exhaust gases passes 6 are two inclined-planes of homologue stockpile respectively, calcine together from the material both sides.Combustion chamber 8 can be close to the setting of kiln body as shown in the figure, also can separate.In addition, a combustion chamber and an exhaust gases passes can be set also, thereby in calcining compartment, form the form of monolateral discharging behind the monolateral calcining materials.
Crossed a blast pipe 9 respectively in the tapping channel 5 of described cooling chamber 4 bottoms, blast pipe 9 tube walls have a plurality of fresh air inlets, and blast pipe 9 is connected with induced-draught fan 10, and the discharge pipe 11 of induced-draught fan 10 is communicated with combustion chamber 8.
The sidewall of described calcining compartment 3 is provided with observes door 13.
Described preheating chamber 2 charge doors are furnished with draught hood 14, be equipped with tremie pipe 15 in the draught hood 14, seal between draught hood 14 upper ends and the tremie pipe 15, draught hood 14 lower ends communicate with the charge door butt joint, and draught hood 14 sides are provided with menifold 16 and directly communicate with air exhauster 17 or communicate indirectly with air exhauster 17 by deduster 18.
Described tremie pipe 15 upper ends are furnished with end cap 19.Also can adopt the way of increasing tremie pipe 15, the cancellation end cap is realized continuous charging.
Described kiln body 1 is a brick mix structure, and its outer steel frame 20 that is provided with, steel frame 20 are affixed with preheating chamber 2, calcining compartment 3, cooling chamber 4 respectively.
Above-mentioned embodiment only is a kind of in the specific embodiment of the invention, under the situation that does not break away from design principle of the present invention, can also adopt other design form to realize the present invention.Therefore, above-mentioned embodiment should not be construed as the qualification to protection domain of the present invention, and all design variation that principle is identical all should drop within the protection domain of the present invention.
Claims (10)
1, a kind of external combustion vertical kiln, comprise the kiln body of being located on the basis, it is characterized in that: described kiln body comprises superposed preheating chamber, the calcining compartment at middle part and the cooling chamber of bottom, preheating chamber, calcining compartment and cooling chamber are to connect mutually, described calcining compartment top is that arch forms arch of furnace, described preheating chamber is the chimney-like setting and constructs in calcining compartment top highest point, the preheating chamber upper shed is a charge door, described cooling chamber is positioned at the calcining compartment below, the cooling chamber bottom sets out the material passage, described calcining compartment inner chamber is made up of solid accumulation space and heat supply space, and the heat supply space of described calcining compartment is connected with can provide the high-temperature flue gas calcining to desire the exhaust gases passes of processing materials or be provided with to make fuel direct naked light in calcining compartment burn and calcine the fuel nozzle of desiring processing materials.
2, external combustion vertical kiln according to claim 1 is characterized in that: be provided with the sub-material platform on band pinnacle in the middle of the described cooling chamber, the sub-material platform is separated in two cooling chamber, and a side of sub-material platform is provided with tapping channel or both sides are respectively arranged with tapping channel.
3, external combustion vertical kiln according to claim 1 and 2 is characterized in that: the external combustion chamber that is provided with of described kiln, exhaust gases passes is connected between combustion chamber and the calcining compartment.
4, external combustion vertical kiln according to claim 3, it is characterized in that: crossed at least one blast pipe in the tapping channel of described cooling chamber bottom, the blast pipe tube wall has a plurality of fresh air inlets, and blast pipe is connected with induced-draught fan, and the discharge pipe of induced-draught fan is communicated with the combustion chamber.
5, external combustion vertical kiln according to claim 1 and 2, it is characterized in that: the cross section of described preheating chamber, calcining compartment and cooling chamber is all rectangular, and the angle of a preheating chamber lower edge and determined inclined-plane, a cooling chamber upper edge and horizontal plane is less than the natural stocking angle of desiring processing materials.
6, external combustion vertical kiln according to claim 1 and 2 is characterized in that: the sidewall of described calcining compartment is provided with observes door.
7, external combustion vertical kiln according to claim 1 and 2, it is characterized in that: described preheating chamber charge door is furnished with draught hood, be equipped with tremie pipe in the draught hood, seal between draught hood upper end and the tremie pipe, the draught hood lower end communicates with the charge door butt joint, and the draught hood side is provided with menifold and directly communicates with air exhauster or communicate indirectly with air exhauster by deduster.
8, external combustion vertical kiln according to claim 7 is characterized in that: described tremie pipe is higher than draught hood or the tremie pipe upper end is furnished with end cap.
9, external combustion vertical kiln according to claim 1 and 2 is characterized in that: described kiln body is a brick mix structure, and its outer steel frame that is provided with, steel frame are affixed with preheating chamber, calcining compartment, cooling chamber respectively.
10, external combustion vertical kiln according to claim 1 and 2 is characterized in that: the cross section of described preheating chamber, calcining compartment and cooling chamber is rounded or oval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100370324A CN100549607C (en) | 2006-08-09 | 2006-08-09 | External combustion vertical kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100370324A CN100549607C (en) | 2006-08-09 | 2006-08-09 | External combustion vertical kiln |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1908564A CN1908564A (en) | 2007-02-07 |
| CN100549607C true CN100549607C (en) | 2009-10-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006100370324A Expired - Fee Related CN100549607C (en) | 2006-08-09 | 2006-08-09 | External combustion vertical kiln |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101493281B (en) * | 2008-01-22 | 2012-03-14 | 黄远辉 | Dislocation type centre section naked flame vertical kiln |
| CN107677124B (en) * | 2017-09-28 | 2019-05-21 | 安徽省宁国市宁沪钢球有限公司 | A kind of Metal Melting electric furnace with dust-extraction unit |
| CN108088236B (en) * | 2018-01-18 | 2024-06-18 | 南京苏冶钙业技术有限公司 | Industrial calcining vertical kiln |
| CN110526595A (en) * | 2018-05-23 | 2019-12-03 | 绵竹市拱星氧化钙厂 | Efficient calcining prepares the mixing formula limekiln of lime |
| CN114413617A (en) * | 2022-02-08 | 2022-04-29 | 安徽天地通重型机械有限公司 | External combustion type vertical kiln for mine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3659832A (en) * | 1969-06-04 | 1972-05-02 | Mifuji Iron Works Co Ltd | Cupolas |
| CN86103744A (en) * | 1985-05-29 | 1986-12-17 | 戴维·D·达格罗萨 | The method for calcinating of solid materials and used single column calcining furnace thereof |
| CN2581447Y (en) * | 2002-11-26 | 2003-10-22 | 西安建筑科技大学 | Big granular fluidized clinker calcining device |
| CN2861914Y (en) * | 2005-09-17 | 2007-01-24 | 张清学 | Steelmaking mud ball baking shaft stove |
-
2006
- 2006-08-09 CN CNB2006100370324A patent/CN100549607C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3659832A (en) * | 1969-06-04 | 1972-05-02 | Mifuji Iron Works Co Ltd | Cupolas |
| CN86103744A (en) * | 1985-05-29 | 1986-12-17 | 戴维·D·达格罗萨 | The method for calcinating of solid materials and used single column calcining furnace thereof |
| CN2581447Y (en) * | 2002-11-26 | 2003-10-22 | 西安建筑科技大学 | Big granular fluidized clinker calcining device |
| CN2861914Y (en) * | 2005-09-17 | 2007-01-24 | 张清学 | Steelmaking mud ball baking shaft stove |
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| CN1908564A (en) | 2007-02-07 |
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Granted publication date: 20091014 Termination date: 20120809 |