CN107721207B - Energy-saving shaft kiln for calcium industry - Google Patents
Energy-saving shaft kiln for calcium industry Download PDFInfo
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- CN107721207B CN107721207B CN201711091997.6A CN201711091997A CN107721207B CN 107721207 B CN107721207 B CN 107721207B CN 201711091997 A CN201711091997 A CN 201711091997A CN 107721207 B CN107721207 B CN 107721207B
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- energy
- saving
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- brick layer
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2/00—Lime, magnesia or dolomite
- C04B2/10—Preheating, burning calcining or cooling
- C04B2/12—Preheating, burning calcining or cooling in shaft or vertical furnaces
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/40—Production or processing of lime, e.g. limestone regeneration of lime in pulp and sugar mills
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The invention discloses an energy-saving vertical kiln for calcium industry, which is cylindrical and comprises a furnace neck part, a furnace body part and a furnace bottom part, wherein the upper parts of the furnace neck part and the furnace body part are sequentially provided with an inner energy-saving brick layer, an outer energy-saving brick layer, a heat-insulating pouring layer and a ceramic fiber plate layer from the inner side to the outer side, the lower part of the furnace body part is sequentially provided with the inner energy-saving brick layer, the outer energy-saving brick layer, the heat-insulating pouring layer and the ceramic fiber plate layer from the inner side to the outer side, and the furnace bottom part is sequentially provided with the inner energy-saving brick layer, the outer energy-saving brick layer and a concrete layer from the inner side to the outer side. The energy-saving vertical kiln for the calcium industry has the advantages of energy saving, light weight, raw material saving and low manufacturing cost.
Description
Technical Field
The invention relates to furnace kiln equipment, in particular to an energy-saving vertical furnace kiln for calcium industry.
Background
Industrial lime kilns are widely used in large areas of industrial production, and in the application field of calcium industry, large-scale kilns are required to be used for firing raw materials. The existing furnace kiln basically adopts a shaft furnace, but has certain problems, mainly manifested in that the lining of the furnace wall of the furnace kiln is not energy-saving enough, the heat preservation effect is poor, the energy consumption is large, and the production cost is improved.
Disclosure of Invention
The invention aims to provide an energy-saving shaft kiln for calcium industry aiming at the defects of the prior art, which has the advantages of energy saving, light weight, raw material saving and low manufacturing cost.
In order to achieve the above object, the present invention is achieved by the following technical means.
The energy-saving vertical kiln for the calcium industry is cylindrical and comprises a furnace neck part, a furnace body part and a furnace bottom part, wherein the furnace neck part is in a circular truncated cone shape, the furnace neck part is cylindrical, the furnace bottom part is in an inverted circular truncated cone shape, the included angle between the inner side of the furnace neck part and the inner side of the furnace body part is 170-190 degrees, the included angle between the inner side of the furnace body part and the inner side of the furnace bottom part is 170-190 degrees, the upper parts of the furnace neck part and the furnace body part are sequentially provided with an inner energy-saving brick layer, an outer energy-saving brick layer, a heat-insulating pouring layer and a ceramic fiber board layer from the inner side to the outer side, the lower parts of the furnace neck part and the furnace body part are sequentially provided with an inner energy-saving brick layer, an outer energy-saving brick layer and a heat-insulating pouring layer from the inner side to the outer side, the furnace bottom part is sequentially provided with an inner energy-saving brick layer, an outer energy-saving brick layer and a muddy soil layer from the inner side to the outer side, the energy-saving brick layer is formed by stacking energy-saving bricks, the inner energy-saving bricks, the energy-saving bricks are sequentially provided with through holes on one side, male grooves and female grooves are formed in the middle parts of the male grooves and are matched with the male grooves, and the male grooves.
Furthermore, the outer energy-saving brick layer is formed by piling special energy-saving bricks for the lime kiln.
Furthermore, the insulating brick layer is formed by stacking insulating bricks.
Furthermore, the heat-insulating pouring layer is formed by pouring heat-insulating pouring materials.
Further, the ceramic fiber board layer is composed of a ceramic fiber board.
The energy-saving shaft kiln for the calcium industry has the advantages of energy conservation, light weight, raw material saving and low manufacturing cost.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of a partially enlarged structure of A, B and C in FIG. 1;
fig. 3 is a schematic structural view of the special-shaped brick of the invention;
FIG. 4 is a schematic structural diagram of an outer energy-saving brick of the present invention;
FIG. 5 is a schematic structural view of the insulating brick of the present invention;
in the figure: the energy-saving brick comprises a furnace neck part 1, a furnace body part 2, a furnace bottom part 3, an inner energy-saving brick layer 4, an outer energy-saving brick layer 5, a heat-insulating brick layer 6, a heat-insulating pouring layer 7, a ceramic fiberboard layer 8, a concrete layer 9, an energy-saving brick 41, a through hole 411, a male groove 412, a female groove 413, an energy-saving brick 51 special for a lime kiln and a heat-insulating brick 61.
Detailed Description
The present invention is further illustrated by the following examples, but is not limited to the details of the description.
As shown in the figure: the cross section of the energy-saving vertical kiln for the calcium industry is cylindrical, the energy-saving vertical kiln comprises a furnace neck 1, a furnace body part 2 and a furnace bottom part 3, the furnace neck 1 is in a round table shape, the furnace neck 1 is cylindrical, the furnace bottom part 3 is in a round table shape, an included angle between the inner side of the furnace neck 1 and the inner side of the furnace body part 2 is 184 degrees, an included angle between the inner side of the furnace body part 2 and the inner side of the furnace bottom part 3 is 177 degrees, the upper parts of the furnace neck 1 and the furnace body part 2 are sequentially provided with an SK-50 type inner energy-saving brick layer (4), a DK-50 type outer energy-saving brick layer (5), a JK-25 type heat-insulating brick layer (6), a QT-150 type heat-insulating pouring layer (7) and an FB-50 type ceramic fiber board layer (8) from the inner side to the outer side, the SK-50 type inner energy-saving brick layer (4), the DK-50 type outer energy-saving brick layer (5) and a QT-150 type heat-insulating layer (7) are sequentially arranged from the inner side to the outer side of the furnace body part 3, and the QT-50 type brick layer and the QT-50 type sludge layer are sequentially arranged from the inner side to the outer side.
The innermost SK-50 type inner energy-saving brick layer 4 is formed by stacking SK-50 type energy-saving bricks 41, the cross section of the SK-50 type energy-saving bricks 41 is isosceles trapezoid, different brick types are designed according to different positions, one side of the non-working face of the SK-50 type energy-saving bricks is provided with a through hole 411, the middle parts of the top face and the bottom face are respectively provided with a male groove 412 and a female groove 413 which are convenient to mount, the male groove 412 and the female groove 413 are respectively arranged in the middle parts of two opposite faces of the SK-50 type energy-saving bricks 41, and when the SK-50 type energy-saving bricks are used, adjacent bricks are mutually meshed, so that the integrity of the refractory bricks is improved.
The DK-50 type outer energy-saving brick layer 5 is a DK-50 type energy-saving brick 51 special for a lime kiln, through holes are formed in two sides of the energy-saving brick 51 special for the lime kiln, a male groove and a female groove which are convenient to mount are formed in the middle of the energy-saving brick, the male groove is in a shape that the inner side end is small, the outer side end is large, and the female grooves are opposite.
The JK-25 type insulating brick layer 6 is formed by piling JK-25 type insulating bricks 61, and the JK-25 type insulating bricks adopt a porous design.
The QT-150 type heat insulation castable of the QT-150 type heat insulation castable layer 7 is a mixture of porous particles and cement;
the FB-50 type ceramic fiberboard layer 8 is an FB-50 type ceramic fiberboard.
The concrete layer 9 ensures structural strength.
The SK-50 type inner energy-saving brick layer 4 adopts the SK-50 type energy-saving brick 41, so that the load bearing of the lining body is reduced, the heat insulation effect of air is utilized to the maximum extent, the energy-saving effect is remarkable, and the parameters before the lime kiln is technically improved are as follows: the standard coal consumption of lime per ton is 123Kg, the power consumption is about 5 degrees, the temperature of the cylinder outside the kiln is about 75 degrees, and the method is technically improved according to the provided structure and materials: the standard coal consumption is 120Kg, the power consumption is about 4 ℃, and the temperature of the cylinder outside the kiln is 20-30 ℃.
The energy-saving shaft kiln for the calcium industry has the advantages of energy conservation, light weight, energy conservation and low manufacturing cost.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. Not all embodiments are exhaustive. All obvious changes and modifications which are obvious to the technical scheme of the invention are covered by the protection scope of the invention.
Claims (5)
1. An energy-saving shaft kiln for calcium industry is characterized in that: it is cylindrical and comprises a furnace neck (1), a furnace body (2) and a furnace bottom (3), the furnace neck (1) is in a circular truncated cone shape, the furnace neck (1) is in a cylindrical shape, the furnace bottom (3) is in an inverted circular truncated cone shape, the included angle between the inner side of the furnace neck and the inner side of the furnace body is 170-190 degrees, the included angle between the inner side of the furnace body part and the inner side of the furnace bottom part is 170-190 degrees, the upper parts of the furnace neck part (1) and the furnace body part (2) are sequentially provided with an inner energy-saving brick layer (4), an outer energy-saving brick layer (5), a heat-insulating brick layer (6), a heat-insulating pouring layer (7) and a ceramic fiberboard layer (8) from the inner side to the outer side, the lower part of the furnace body part (2) is sequentially provided with an inner energy-saving brick layer (4), an outer energy-saving brick layer (5) and a heat-insulating pouring layer (7) from the inner side to the outer side, the furnace bottom (3) is sequentially provided with an inner energy-saving brick layer (4), an outer energy-saving brick layer (5) and a muddy soil layer (9) from the inner side to the outer side, the inner energy-saving brick layer (4) is formed by piling up energy-saving bricks (41), the cross section of the energy-saving brick (41) is isosceles trapezoid, one side of the non-working surface of the energy-saving brick (41) is provided with a through hole (411), and a male groove (412) and a female groove (413) are formed in the middle of the top surface and the bottom surface of the energy-saving brick (41) respectively, and the male groove (412) is matched with the female groove (413).
2. The energy-saving shaft kiln for calcium industry according to claim 1, wherein: the outer energy-saving brick layer (5) is formed by piling up energy-saving bricks (51) special for the lime kiln.
3. The energy-saving shaft kiln for calcium industry as claimed in claim 1, wherein: the insulating brick layer (6) is formed by stacking insulating bricks (61).
4. The energy-saving shaft kiln for calcium industry as claimed in claim 1, wherein: the heat insulation pouring layer (7) is formed by pouring heat insulation pouring materials.
5. The energy-saving shaft kiln for calcium industry as claimed in claim 1, wherein: the ceramic fiber board layer (8) is composed of a ceramic fiber board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711091997.6A CN107721207B (en) | 2017-11-08 | 2017-11-08 | Energy-saving shaft kiln for calcium industry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711091997.6A CN107721207B (en) | 2017-11-08 | 2017-11-08 | Energy-saving shaft kiln for calcium industry |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107721207A CN107721207A (en) | 2018-02-23 |
| CN107721207B true CN107721207B (en) | 2023-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711091997.6A Active CN107721207B (en) | 2017-11-08 | 2017-11-08 | Energy-saving shaft kiln for calcium industry |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5299933A (en) * | 1991-12-24 | 1994-04-05 | Quigley Company, Inc. | Rotary kiln with a polygonal lining |
| CN2765903Y (en) * | 2005-03-02 | 2006-03-22 | 王发启 | Environment friendly energy-saving lime burner |
| CN202688464U (en) * | 2012-06-19 | 2013-01-23 | 云南铝业股份有限公司 | Imbalanced thermal insulation lining structure of curved cathode aluminum electrolytic cell |
| CN203393035U (en) * | 2013-07-31 | 2014-01-15 | 吴庆军 | Environment-friendly and energy-saving lime kiln furnace |
| CN205115302U (en) * | 2015-11-20 | 2016-03-30 | 河北新盈科创钙业股份有限公司 | Novel limekiln |
| CN205115303U (en) * | 2015-11-20 | 2016-03-30 | 河北新盈科创钙业股份有限公司 | Vertical limekiln |
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2017
- 2017-11-08 CN CN201711091997.6A patent/CN107721207B/en active Active
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| CN107721207A (en) | 2018-02-23 |
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