CN103217012B - A kind of energy-conservation rotary kiln - Google Patents
A kind of energy-conservation rotary kiln Download PDFInfo
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- CN103217012B CN103217012B CN201310125699.XA CN201310125699A CN103217012B CN 103217012 B CN103217012 B CN 103217012B CN 201310125699 A CN201310125699 A CN 201310125699A CN 103217012 B CN103217012 B CN 103217012B
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- Prior art keywords
- rotary kiln
- carrier pipe
- main body
- energy
- coal dust
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- 238000004134 energy conservation Methods 0.000 title claims abstract description 11
- 239000002817 coal dust Substances 0.000 claims abstract description 21
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 4
- 230000008676 import Effects 0.000 claims description 5
- 239000003034 coal gas Substances 0.000 abstract description 10
- 238000002485 combustion reaction Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000000446 fuel Substances 0.000 description 3
- 239000002956 ash Substances 0.000 description 2
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
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- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
The present invention proposes a kind of energy-conservation rotary kiln, belong to rotary kiln field.It comprises rotary kiln body, described rotary kiln body is provided with burner, described burner is connected with gas conveying tube and coal dust carrier pipe, described gas conveying tube is reducer pipe, comprise the necking segment that carrier pipe main body and diameter are less than carrier pipe main body, the caliber of described carrier pipe main body is 700-900mm, and the cross-sectional area of described necking segment external port is 190000-220000mm
2.Compared with prior art, the invention has the beneficial effects as follows after adopting said structure, the multifuel combustion of coal gas of converter and coal dust can be used, significantly can reduce production cost.
Description
Technical field
The present invention relates to a kind of rotary kiln, particularly the energy-conservation rotary kiln of one.
Background technology
The fuel that general rotary kiln uses is coke-stove gas and coal gas of converter multifuel combustion; Coke-stove gas calorific value 4200kcal/Nm3; Coal gas of converter calorific value 1600kcal/Nm3; Heat vale of mixture 2600kcal/Nm3; Rotary kiln production capacity 600t/d, needs mixed gas 11538Nm3/h.Wherein: coke-oven coal tolerance accounts for 40% for 4615Nm3/h; Coal gas of converter amount accounts for 60% for 6923Nm3/h.Coke-stove gas tax included price 819 yuan/thousand stands, and coal gas of converter tax included price 105 yuan/thousand stands.According to the proportioning of agreement valency and 4:6, ton ash cost needs 180 yuan/ton of ashes, and Long-Time Service causes cost to remain high, and in the process of producing, how to reduce production cost is the problem that researcher endeavours to study always.
Summary of the invention
The present invention proposes a kind of energy-conservation rotary kiln, solve deficiency of the prior art, use the multifuel combustion of coal gas of converter and coal dust, significantly can reduce production cost.
Technical scheme of the present invention is achieved in that a kind of energy-conservation rotary kiln, comprise rotary kiln body, described rotary kiln body is provided with burner, described burner is connected with gas conveying tube and coal dust carrier pipe, described gas conveying tube is reducer pipe, comprise the necking segment that carrier pipe main body and diameter are less than carrier pipe main body, the caliber of described carrier pipe main body is 700-900mm, and the cross-sectional area of described necking segment external port is 190000-220000mm
2.
Further, the caliber of described carrier pipe main body is 800mm.
Further, the cross-sectional area of described necking segment external port is 209400mm
2.
Further, the both sides of described coal dust carrier pipe import are respectively equipped with coal dust conveying fan and in rotary kiln, carry the air conveying fan of air.
Compared with prior art, the invention has the beneficial effects as follows: owing to adding the caliber of gas conveying tube, add the cross-sectional area of gas conveying tube necking segment external port simultaneously, can by increasing coal dust conveying fan and carry the conveying capacity of the conveying air blower of air to increase air capacity in kiln in kiln simultaneously, the flame profile of adjustment burner, to reach the Thorough combustion energy supply making coal gas and coal dust, such employing coal gas of converter and the coal dust multifuel combustion energy fuel cost that at least can reduce 40 yuan per ton, greatly reduce production cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only one of them embodiment of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the embodiment of the present invention.
In figure: 1, rotary kiln body; 2, burner; 3, gas conveying tube; 31, carrier pipe main body; 32, necking segment; 33, external port; 4, coal dust carrier pipe; 41, coal dust carrier pipe import.
Detailed description of the invention
Be clearly and completely described the technical scheme in the present invention below, obviously, described embodiment is only several embodiments wherein of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1: a kind of energy-conservation rotary kiln, comprise rotary kiln body 1, described rotary kiln body 1 is provided with burner 2, described burner 2 is connected with gas conveying tube 3 and coal dust carrier pipe 4, the both sides of described coal dust carrier pipe import 41 are respectively equipped with coal dust conveying fan and in rotary kiln, carry the air conveying fan of air; Described gas conveying tube 3 is reducer pipe, and comprise the necking segment 32 that carrier pipe main body 31 and diameter are less than carrier pipe main body 31, the caliber of described carrier pipe main body 31 is 700-900mm, and the cross-sectional area of described necking segment 32 external port 33 is 190000-220000mm
2.In the present embodiment, the caliber of described carrier pipe main body 31 is 800mm, and the cross-sectional area of described necking segment 32 external port 33 is 209400mm
2.
Owing to adding the caliber of gas conveying tube 3, add the cross-sectional area of gas conveying tube 3 necking segment 32 external port 33 simultaneously, can by increasing coal dust conveying fan and carry the conveying capacity of the conveying air blower of air to increase air capacity in kiln in kiln simultaneously, the flame profile of adjustment burner 2, to reach the Thorough combustion energy supply making coal gas and coal dust.When the air quantity of the conveying air blower of coal dust carrier pipe import 41 both sides is increased to 63-67m
3/ min, pressure are increased to 17-23kpa, adopt coal gas of converter and the coal dust multifuel combustion energy fuel cost that at least can reduce 40 yuan per ton like this, greatly reduce production cost.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. an energy-conservation rotary kiln, comprise rotary kiln body (1), described rotary kiln body (1) is provided with burner (2), described burner (2) is connected with gas conveying tube (3) and coal dust carrier pipe (4), it is characterized in that: described gas conveying tube (3) is reducer pipe, comprise the necking segment (32) that carrier pipe main body (31) and diameter are less than carrier pipe main body (31), the caliber of described carrier pipe main body (31) is 700-900mm, and the cross-sectional area of described necking segment (32) external port (33) is 190000-220000mm
2.
2. the energy-conservation rotary kiln of one according to claim 1, is characterized in that: the caliber of described carrier pipe main body (31) is 800mm.
3. the energy-conservation rotary kiln of one according to claim 1 and 2, is characterized in that: the cross-sectional area of described necking segment (32) external port (33) is 209400mm
2.
4. the energy-conservation rotary kiln of one according to claim 3, is characterized in that: the both sides of described coal dust carrier pipe import (41) are respectively equipped with coal dust conveying fan and in rotary kiln, carry the air conveying fan of air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310125699.XA CN103217012B (en) | 2013-04-09 | 2013-04-09 | A kind of energy-conservation rotary kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310125699.XA CN103217012B (en) | 2013-04-09 | 2013-04-09 | A kind of energy-conservation rotary kiln |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103217012A CN103217012A (en) | 2013-07-24 |
| CN103217012B true CN103217012B (en) | 2015-10-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310125699.XA Expired - Fee Related CN103217012B (en) | 2013-04-09 | 2013-04-09 | A kind of energy-conservation rotary kiln |
Country Status (1)
| Country | Link |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4310299A (en) * | 1980-05-05 | 1982-01-12 | Coen Company, Inc. | Method for firing a rotary kiln with pulverized solid fuel |
| JPS5822811A (en) * | 1981-07-30 | 1983-02-10 | Kobe Steel Ltd | Burner for use in rotary kiln |
| CN86108589A (en) * | 1985-11-20 | 1987-07-29 | 海湾公司加拿大分公司 | A kind of method of passivating particulate coal |
| CN87214616U (en) * | 1987-10-29 | 1988-08-17 | 清华大学 | Double-channel rotating flow type coal powder burner with a flame stabilizer of a cement rotatory kiln |
| CN2921744Y (en) * | 2006-04-07 | 2007-07-11 | 广西柳州钢铁(集团)公司 | Rotary kiln low-pressure gas combustor |
| CN201155919Y (en) * | 2007-12-19 | 2008-11-26 | 莱芜钢铁集团有限公司 | Cement rotary kiln using coal gas as fuel |
| CN201462853U (en) * | 2009-09-16 | 2010-05-12 | 新兴铸管股份有限公司 | Combustion nozzle used in lime rotary kiln |
| CN201706487U (en) * | 2010-05-22 | 2011-01-12 | 襄樊大力机电技术有限公司 | Anthracite powdered coal burner for a rotary kiln |
| CN201973719U (en) * | 2011-03-11 | 2011-09-14 | 郑州旺盛建材机械配件有限责任公司 | Multi-channel coal and gas mixed combustion type burner |
| CN202002463U (en) * | 2011-03-24 | 2011-10-05 | 宁夏惠冶镁业集团有限公司 | Multichannel nozzle of rotary kiln |
| CN202598533U (en) * | 2012-05-11 | 2012-12-12 | 陈建湘 | Efficient and energy-saving coal gas and pulverized coal mixed burner |
| CN203216255U (en) * | 2013-04-09 | 2013-09-25 | 贵州安凯达新型建材有限责任公司 | Energy-saving rotary kiln |
-
2013
- 2013-04-09 CN CN201310125699.XA patent/CN103217012B/en not_active Expired - Fee Related
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4310299A (en) * | 1980-05-05 | 1982-01-12 | Coen Company, Inc. | Method for firing a rotary kiln with pulverized solid fuel |
| JPS5822811A (en) * | 1981-07-30 | 1983-02-10 | Kobe Steel Ltd | Burner for use in rotary kiln |
| CN86108589A (en) * | 1985-11-20 | 1987-07-29 | 海湾公司加拿大分公司 | A kind of method of passivating particulate coal |
| CN87214616U (en) * | 1987-10-29 | 1988-08-17 | 清华大学 | Double-channel rotating flow type coal powder burner with a flame stabilizer of a cement rotatory kiln |
| CN2921744Y (en) * | 2006-04-07 | 2007-07-11 | 广西柳州钢铁(集团)公司 | Rotary kiln low-pressure gas combustor |
| CN201155919Y (en) * | 2007-12-19 | 2008-11-26 | 莱芜钢铁集团有限公司 | Cement rotary kiln using coal gas as fuel |
| CN201462853U (en) * | 2009-09-16 | 2010-05-12 | 新兴铸管股份有限公司 | Combustion nozzle used in lime rotary kiln |
| CN201706487U (en) * | 2010-05-22 | 2011-01-12 | 襄樊大力机电技术有限公司 | Anthracite powdered coal burner for a rotary kiln |
| CN201973719U (en) * | 2011-03-11 | 2011-09-14 | 郑州旺盛建材机械配件有限责任公司 | Multi-channel coal and gas mixed combustion type burner |
| CN202002463U (en) * | 2011-03-24 | 2011-10-05 | 宁夏惠冶镁业集团有限公司 | Multichannel nozzle of rotary kiln |
| CN202598533U (en) * | 2012-05-11 | 2012-12-12 | 陈建湘 | Efficient and energy-saving coal gas and pulverized coal mixed burner |
| CN203216255U (en) * | 2013-04-09 | 2013-09-25 | 贵州安凯达新型建材有限责任公司 | Energy-saving rotary kiln |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103217012A (en) | 2013-07-24 |
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Address after: 553006 Guizhou city of Liupanshui province Zhongshan District Town Yumin village nine groups Applicant after: GUIZHOU ANKAIDA INDUSTRIAL Co.,Ltd. Address before: 553006 Guizhou city of Liupanshui province Zhongshan District Town Yumin village nine groups Applicant before: GUIZHOU ANKAIDA NEW BUILDING MATERIAL Co.,Ltd. |
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Denomination of invention: Energy-saving rotary kiln Effective date of registration: 20160121 Granted publication date: 20151028 Pledgee: Liupanshui city Zijin Mountain village bank Limited by Share Ltd. Pledgor: GUIZHOU ANKAIDA INDUSTRIAL Co.,Ltd. Registration number: 2016520000002 |
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Date of cancellation: 20230407 Granted publication date: 20151028 Pledgee: Liupanshui city Zijin Mountain village bank Limited by Share Ltd. Pledgor: GUIZHOU ANKAIDA INDUSTRIAL Co.,Ltd. Registration number: 2016520000002 |
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Granted publication date: 20151028 |