CN202041081U - Separate air channel structure for dry cement kiln - Google Patents
Separate air channel structure for dry cement kiln Download PDFInfo
- Publication number
- CN202041081U CN202041081U CN201120020152XU CN201120020152U CN202041081U CN 202041081 U CN202041081 U CN 202041081U CN 201120020152X U CN201120020152X U CN 201120020152XU CN 201120020152 U CN201120020152 U CN 201120020152U CN 202041081 U CN202041081 U CN 202041081U
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- China
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- air
- air channel
- tertiary
- channel structure
- kiln
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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
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
- Y02P40/121—Energy efficiency measures, e.g. improving or optimising the production methods
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- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
Provided is a separate air channel structure for dry cement kiln, comprising a secondary air channel (1) and a tertiary air channel (2). The separate air channel structure is characterized in that: the air inlet of the secondary air channel (1) is communicated with a low-temperature air outlet (4) arranged at the mid-front portion of a cooling machine (3); and the air inlet of the tertiary air channel (2) is communicated with a high-temperature air outlet (5) arranged at the front portion of the cooling machine. The tertiary high-temperature gas entering the decomposing furnace is specially drawn from another opening arranged in the top of the cooling machine, thereby avoiding mutual influence and interference between the secondary air entering kiln and the tertiary air entering furnace and both obtaining higher temperatures (the secondary air >=1050 DEG C and the tertiary air >=900 DEG C) and sufficient air quantity. The separate air channel structure effectively ensures that the whole kiln system can obtain improved heat distribution. The separate air channel structure for dry cement kiln features simple structure and easy making with low cost.
Description
Technical field
The utility model relates to a kind of building equipment, especially a kind of dry-process cement rotary kiln, specifically a kind of dry-process cement rotary kiln discrete air channel structure.
Background technology
As everyone knows, for energy savings, the heat that dry-process cement rotary kiln generally utilizes cooler to produce is sent in dore furnace and the rotary kiln, and the high-temperature gas part after the cooler exchange is gone into rotary kiln (secondary wind), and another part is gone into tertiary-air pipe to dore furnace.For the heat that cooler is produced can be sent in the corresponding wind channels, conventional practice all is to set big wicket cover, as shown in Figure 1, such shortcoming is that kiln wind and dore furnace wind are can not the interface on amount clear, often guarantee the amount and the temperature value of rotary kiln high-temperature gas, but do not guarantee the amount and the temperature value of dore furnace high-temperature gas, cause resolution ratio to descend, the decline of whole system output, energy consumption are risen.This structure has also increased manufacturing cost greatly simultaneously, the efficient cooler of present the 4th generation low voltage control air-flow, the high-temperature gas of temperature value and the amount of fully giving security, just there is no need a secondary wind and tertiary air and be mixed in extraction in the marquee, if continue traditional way, not only can't guarantee the uniform distribution of heat, also increase the cost of manufacturing, maintenance, be necessary existing air channel structure is improved.
Summary of the invention
The purpose of this utility model is that the heat distribution that causes at the shared big wicket of existing secondary wind and tertiary air road is irregular, the phase mutual interference is big, make and the high problem of maintenance cost, design a kind of secondary wind and tertiary air air intake passage dry-process cement rotary kiln discrete separate, that need not big wicket air channel structure.
The technical solution of the utility model is:
A kind of dry-process cement rotary kiln discrete air channel structure, it comprises secondary air duct 1 and tertiary air road 2, the air inlet that it is characterized in that described tertiary air road 2 is connected with the low temperature air outlet 4 of cooler 3 middle front parts, and the air inlet of described secondary air duct 1 is connected with the high temperature air outlet 5 of cooler front portion.
The leaving air temp of described low temperature air outlet 4 is not less than 900 ℃, and the leaving air temp of described high temperature air outlet 5 is not less than 1050 ℃.
The beneficial effects of the utility model:
The utility model has made full use of the controlled characteristics of air-flow of existing cooler, respectively from different position directly introduce temperature required high-temperature gas corresponding wind channels with tertiary air to the requirement of temperature value according to secondary wind, it is even not only to have temperature, and removed traditional big wicket for a short time, make manufacturing cost and maintenance cost reduce greatly.
Specially other opening extracts high-temperature gas of going into dore furnace for three times of the present utility model from cooler top.Make secondary wind go into kiln and tertiary air and go into stove and be independent of each other, mutually noninterfere all obtains higher temperature (secondary wind 〉=1050 °, tertiary air 〉=900 °) and sufficient air quantity.To guaranteeing that full kiln system has the heating power of an optimization to distribute and played important guarantee effect.
The utility model is simple in structure, and is easily manufactured, and cost is low.
Description of drawings
Fig. 1 is the secondary wind of existing dry-process cement rotary kiln and the air channel structure schematic diagram of tertiary air.
Fig. 2 is the secondary wind of dry-process cement rotary kiln of the present utility model and the air channel structure schematic diagram of tertiary air.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described.
As shown in Figure 2.
A kind of dry-process cement rotary kiln discrete air channel structure, it comprises secondary air duct 1 and tertiary air road 2, the air inlet in described tertiary air road 2 is connected with the low temperature air outlet 4 of cooler 3 middle front parts, and the air inlet of described secondary air duct 1 is connected with the high temperature air outlet 5 of cooler front portion.As can be seen from Figure 2, other opening extracts high-temperature gas (tertiary air) of going into dore furnace for three times of the present utility model from cooler top.This just makes secondary wind go into kiln 6 and tertiary air to go into stove 7 and be independent of each other, and mutually noninterfere all obtains higher temperature (secondary wind 〉=1050 ℃, tertiary air 〉=900 ℃) and sufficient air quantity.To guaranteeing that full kiln system has the heating power of an optimization to distribute and played important guarantee effect.
The utility model does not relate to the part prior art that maybe can adopt all same as the prior art to be realized.
Claims (2)
1. dry-process cement rotary kiln discrete air channel structure, it comprises secondary air duct (1) and tertiary air road (2), the air inlet that it is characterized in that described tertiary air road (2) is connected with the low temperature air outlet (4) of cooler (3) middle front part, and the air inlet of described secondary air duct (1) is connected with the high temperature air outlet (5) of cooler front portion.
2. air channel structure according to claim 1 is characterized in that the leaving air temp of described low temperature air outlet (4) is not less than 900 ℃, and the leaving air temp of described high temperature air outlet (5) is not less than 1050 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120020152XU CN202041081U (en) | 2011-01-21 | 2011-01-21 | Separate air channel structure for dry cement kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120020152XU CN202041081U (en) | 2011-01-21 | 2011-01-21 | Separate air channel structure for dry cement kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202041081U true CN202041081U (en) | 2011-11-16 |
Family
ID=44968521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120020152XU Expired - Fee Related CN202041081U (en) | 2011-01-21 | 2011-01-21 | Separate air channel structure for dry cement kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202041081U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084617A (en) * | 2017-06-12 | 2017-08-22 | 北京凯盛建材工程有限公司 | A kind of cement cyclone preheater kiln transform the energy-saving and emission-reduction remodeling method of the outer nsp kiln of kiln as |
| CN107487994A (en) * | 2017-08-19 | 2017-12-19 | 安徽卓煌机械设备有限公司 | A kind of chamotte cooler waste heat recovery rotary kiln oxygen system |
-
2011
- 2011-01-21 CN CN201120020152XU patent/CN202041081U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084617A (en) * | 2017-06-12 | 2017-08-22 | 北京凯盛建材工程有限公司 | A kind of cement cyclone preheater kiln transform the energy-saving and emission-reduction remodeling method of the outer nsp kiln of kiln as |
| CN107487994A (en) * | 2017-08-19 | 2017-12-19 | 安徽卓煌机械设备有限公司 | A kind of chamotte cooler waste heat recovery rotary kiln oxygen system |
| CN107487994B (en) * | 2017-08-19 | 2019-12-10 | 福建省永定闽福建材有限公司 | Clinker cooler waste heat recovery rotary kiln oxygen supply system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160406 Address after: 211222 Jiangsu Province, Nanjing city Lishui District Science and Technology Industrial Park Shi Jiu Zhen Airport Patentee after: Nanjing Ruitai cement manufacturing equipment Co. Ltd. Address before: Jianye Yunjin Road District of Nanjing City, Jiangsu province 210017 Wanda Plaza, No. 58 East Lane 1 room 510 Patentee before: Jiangsu Ruitai Heavy Machinery Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111116 Termination date: 20200121 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |