CN102829641A - System for firing cement kiln head exhaust gas into primary air - Google Patents
System for firing cement kiln head exhaust gas into primary air Download PDFInfo
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- CN102829641A CN102829641A CN2012103507146A CN201210350714A CN102829641A CN 102829641 A CN102829641 A CN 102829641A CN 2012103507146 A CN2012103507146 A CN 2012103507146A CN 201210350714 A CN201210350714 A CN 201210350714A CN 102829641 A CN102829641 A CN 102829641A
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- primary air
- kiln head
- exhaust gas
- cement kiln
- head exhaust
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- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a system for firing cement kiln head exhaust gas into primary air. The system comprises a primary air fan (3) and a powdered coal burner (4), wherein one end of the primary air fan (3) is connected with a kiln head chimney (1) through a pipeline; and the other end of the primary air fan (3) is connected with the powdered coal burner (4) through a pipeline. The system fires the cement kiln head exhaust gas into the primary air, thereby fully using the heat of the kiln head exhaust gas, and avoiding heat waste of the kiln head exhaust gas. As the system fires the cement kiln head exhaust gas into the primary air, taking a 5,000 tons per day of clinker production line as an example, the exhaust gas utilization quantity is about 8,000 standard cube per hour, and compared with the system firing air at normal temperature into primary air, the system provided by the invention has the advantages that 1,442,670 kilojoule per hour of heat can be conserved, which amounts to 49 kilogram per hour of standard coal.
Description
Technical field
This patent relates to cascaded utilization of energy and the energy-conserving and emission-cutting technology field in the cement production process, and particularly a kind of cement kiln head waste gas that utilizes is done the system of burning till a wind.
Background technology
According to " 12 " planning of country, cement production enterprise need drop to 112kg standard coal/t from 115kg standard coal/t with the average hear rate that grog in the cement production process burns till.The waste gas of cement production process will drop to below 200 ℃ through temperature after the cogeneration, and the exhaust energy that how to make full use of after cogeneration is the problem of present each cement production enterprise and R&D institution's primary study.
In the prior art, the traditional cement production technology will enter atmosphere from the kiln hood chimney through the waste gas of cogeneration, and this will cause huge energy dissipation.In the prior art, cement production process is used to burn till wind one time with the air under the normal temperature usually.If utilization is done for 60-200 ℃ waste gas from the temperature of kiln hood smoke stack emission and is burnt till wind one time; With 5000 tons/day clinker production line is example; The exhaust gas utilization amount be about 8000 the mark cubic meters/hour; Compare with the air (being 5 ℃ with mean annual temperature is that example is calculated) under the normal temperature of equal number, can practice thrift heat 1442670 kilojoules/hour, amount to 49 kilograms/hour of standard coals.
Be starved of a kind of cement kiln head waste gas that utilizes and do the system of burning till a wind.
Summary of the invention
The purpose of this invention is to provide a kind of cement kiln head waste gas that utilizes and do the system of burning till a wind.
Provided by the inventionly utilize cement kiln head waste gas to do the system of burning till a wind to comprise primary air fan and coal burner; One end of said primary air fan is connected with the kiln hood chimney through pipeline, and the other end of said primary air fan is connected with said coal burner through pipeline.
Preferably, said system further comprises respectively the valve that is connected with said primary air fan with the kiln hood chimney.
The present invention has following beneficial effect:
(1) said system utilizes cement kiln head waste gas to do and burns till wind one time, thereby can make full use of the heat of kiln hood waste gas, has avoided the heat waste of kiln hood waste gas;
(2) said system utilizes cement kiln head waste gas to do and burns till wind one time; With 5000 tons/day clinker production line is example; The exhaust gas utilization amount be about 8000 the mark cubic meters/hour; Adopt air under the normal temperature to do with prior art and burn till the wind facies ratio one time, can practice thrift heat 1442670 kilojoules/hour, amount to 49 kilograms/hour of standard coals.
Description of drawings
Fig. 1 is the sketch map that utilizes cement kiln head waste gas to do the system of burning till a wind provided by the invention.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment summary of the invention of the present invention is done further to describe.
Present embodiment provides utilizes cement kiln head waste gas to do the system of burning till a wind to comprise valve 2, primary air fan 3 and coal burner 4, as shown in Figure 1.One end of said valve 2 is connected with kiln hood chimney 1 through pipeline, and the other end of said valve 2 is connected with said coal burner 4 with said primary air fan 3 through pipeline successively.The temperature of the waste gas of discharging from kiln hood chimney 1 is 60-200 ℃, and its mean temperature is about 135 ℃.Said valve 2 is used for regulating the air-flow size of pipeline.Said primary air fan 3 is used for to give said coal burner 4 hot-air and heat being provided, and the coal dust in the said coal burner 4 fully being burnt send into said coal burner 4 from the high-temp waste gas of kiln hood chimney 1.The waste gas that said coal burner 4 is discharged leads to the kiln tail.
Said system utilizes cement kiln head waste gas to do and burns till wind one time, thereby can make full use of the heat of kiln hood waste gas, has avoided the heat waste of kiln hood waste gas.Said system utilizes cement kiln head waste gas to do and burns till wind one time; With 5000 tons/day clinker production line is example; The exhaust gas utilization amount be about 8000 the mark cubic meters/hour; Adopt air under the normal temperature to do with prior art and burn till the wind facies ratio one time, can practice thrift heat 1442670 kilojoules/hour, amount to 49 kilograms/hour of standard coals.
Should be appreciated that the above detailed description of technical scheme of the present invention being carried out by preferred embodiment is schematic and nonrestrictive.Those of ordinary skill in the art is reading on the basis of specification of the present invention and can make amendment to the technical scheme that each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these are revised or replacement, do not make the spirit and the scope of the essence disengaging various embodiments of the present invention technical scheme of relevant art scheme.
Claims (2)
1. utilize cement kiln head waste gas to do the system of burning till a wind; It is characterized in that; This system comprises primary air fan (3) and coal burner (4); One end of said primary air fan (3) is connected with kiln hood chimney (1) through pipeline, and the other end of said primary air fan (3) is connected with said coal burner (4) through pipeline.
2. the cement kiln head waste gas that utilizes according to claim 1 is done the system of burning till a wind, it is characterized in that, said system further comprises respectively the valve (2) that is connected with said primary air fan (3) with kiln hood chimney (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103507146A CN102829641A (en) | 2012-09-19 | 2012-09-19 | System for firing cement kiln head exhaust gas into primary air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103507146A CN102829641A (en) | 2012-09-19 | 2012-09-19 | System for firing cement kiln head exhaust gas into primary air |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102829641A true CN102829641A (en) | 2012-12-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103507146A Pending CN102829641A (en) | 2012-09-19 | 2012-09-19 | System for firing cement kiln head exhaust gas into primary air |
Country Status (1)
| Country | Link |
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| CN (1) | CN102829641A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105180180A (en) * | 2015-09-24 | 2015-12-23 | 北京建筑材料科学研究总院有限公司 | Combustion device and method for waste gas treatment |
| CN105570908A (en) * | 2015-12-07 | 2016-05-11 | 山东聊城中盛蓝瑞化工有限公司 | Method and system for recycling and treating waste |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2158030Y (en) * | 1993-07-17 | 1994-03-02 | 北京市华桂机电新技术公司 | Low-volatile portion coal dust burner for rotary cement kiln |
| CN201093881Y (en) * | 2007-09-19 | 2008-07-30 | 邹炎 | Energy saving and drainage reducing industrial furnace system |
| JP2008279344A (en) * | 2007-05-09 | 2008-11-20 | Taiheiyo Cement Corp | Exhaust treatment device of sludge disposal facilities and exhaust treatment method |
| CN201945194U (en) * | 2010-08-26 | 2011-08-24 | 石珍明 | Waste heat energy conservation device for primary air utilization of novel dry method cement rotary kiln burner |
| CN202770238U (en) * | 2012-09-19 | 2013-03-06 | 河南易能达能源科技有限公司 | System utilizing cement kiln head exhaust gas as sintering primary air |
-
2012
- 2012-09-19 CN CN2012103507146A patent/CN102829641A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2158030Y (en) * | 1993-07-17 | 1994-03-02 | 北京市华桂机电新技术公司 | Low-volatile portion coal dust burner for rotary cement kiln |
| JP2008279344A (en) * | 2007-05-09 | 2008-11-20 | Taiheiyo Cement Corp | Exhaust treatment device of sludge disposal facilities and exhaust treatment method |
| CN201093881Y (en) * | 2007-09-19 | 2008-07-30 | 邹炎 | Energy saving and drainage reducing industrial furnace system |
| CN201945194U (en) * | 2010-08-26 | 2011-08-24 | 石珍明 | Waste heat energy conservation device for primary air utilization of novel dry method cement rotary kiln burner |
| CN202770238U (en) * | 2012-09-19 | 2013-03-06 | 河南易能达能源科技有限公司 | System utilizing cement kiln head exhaust gas as sintering primary air |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105180180A (en) * | 2015-09-24 | 2015-12-23 | 北京建筑材料科学研究总院有限公司 | Combustion device and method for waste gas treatment |
| CN105570908A (en) * | 2015-12-07 | 2016-05-11 | 山东聊城中盛蓝瑞化工有限公司 | Method and system for recycling and treating waste |
| CN105570908B (en) * | 2015-12-07 | 2017-11-14 | 山东聊城中盛蓝瑞化工有限公司 | Method and system for recycling and treating waste |
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| PB01 | Publication | ||
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Application publication date: 20121219 |