CN110671940A - Novel feeding device of cement kiln decomposing furnace - Google Patents
Novel feeding device of cement kiln decomposing furnace Download PDFInfo
- Publication number
- CN110671940A CN110671940A CN201910939576.7A CN201910939576A CN110671940A CN 110671940 A CN110671940 A CN 110671940A CN 201910939576 A CN201910939576 A CN 201910939576A CN 110671940 A CN110671940 A CN 110671940A
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- China
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- decomposing furnace
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- cement kiln
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- 239000004568 cement Substances 0.000 title claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 56
- 230000000694 effects Effects 0.000 abstract description 6
- 238000001354 calcination Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000006185 dispersion Substances 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- 230000000630 rising effect Effects 0.000 abstract description 2
- 238000004062 sedimentation Methods 0.000 abstract description 2
- 230000001174 ascending effect Effects 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/0084—Charging; Manipulation of SC or SC wafers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D2003/0085—Movement of the container or support of the charge in the furnace or in the charging facilities
- F27D2003/0093—Movement on a slope
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Furnace Details (AREA)
Abstract
The invention discloses a novel feeding device of a cement kiln decomposing furnace, which comprises a region I, a region II, a region III and a region IV, wherein the region I comprises a feeding pipe in a hemispherical dome shape, the feeding pipe is obliquely arranged, the region II is arranged below a feeding hole of the region I, the region III is arranged below the region II and is positioned on an inclined plane with the same inclination as the region II, and the region IV is connected to the bottom end of the region III and comprises a material spreading plate which is obliquely arranged downwards. The invention strengthens the material dispersion effect through the novel decomposing furnace feeding device, ensures the effective mixing of the material and the rising high-temperature airflow in the decomposing furnace, leads the material to be completely carried to the 5-level preheater and enter the kiln after sedimentation, and leads the raw material to be fully and uniformly decomposed, thereby being beneficial to the calcining quality and the energy-saving effect.
Description
Technical Field
The invention belongs to the technical field of cement kiln production, and particularly relates to a novel feeding device of a cement kiln decomposing furnace.
Background
The feeding device of the decomposing furnace on all novel dry clinker production lines in China adopts the traditional circular pipeline to feed materials to the scattering plate at a large oblique angle and then enters the decomposing furnace, and the design has two disadvantages that the materials are difficult to achieve the effect of dispersing the material powder. One is that the material powder which is not fully scattered enters the decomposing furnace, when the ascending air flow is not increased, part of the material powder directly falls into the bottom kiln, the material enters the kiln to have certain influence on the quality of clinker, when the situation is met, the solution is usually adopted to increase the consumption of first coal to improve the calcining temperature, in addition, the power of a high-temperature fan is increased to improve the air quantity to enhance the ascending air flow ascending force to bring the material into a five-stage preheater, and the power of the high-temperature fan is increased to invisibly increase the energy consumption.
Disclosure of Invention
The device of the invention aims to thoroughly solve the problem that the feeding of the decomposing furnace is not dispersed and crusted, and has the effects of improving quality, saving energy and reducing consumption.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a novel feeding device of a cement kiln decomposing furnace comprises a region I, a region II, a region III and a region IV, wherein the region I comprises a discharging pipe in a hemispherical shape, the discharging pipe is obliquely arranged, and a bottom feeding hole of the discharging pipe is rectangular; the area II is positioned right below the feed inlet of the area I and is a smooth inclined plane inclined downwards, and sticky materials falling from the upper level in the area II of the device are scattered and play a role in properly reducing the material flow speed; the region III is positioned below the region II and on an inclined plane with the same inclination as the region II, and the region III of the device is used for secondarily scattering materials when the materials are guided into the region IV of the device at a proper angle and flow speed; and the region IV is connected to the bottom end of the region III and comprises a material scattering plate arranged downwards in a downward inclining mode.
Preferably, the blanking pipe and the areas II and III are located on the same side of a vertical line, and the included angle between the blanking pipe and the vertical line is 10 degrees.
Preferably, the included angle between the inclined plane and the horizontal plane is 45-55 degrees.
Preferably, the included angle between the material scattering plate and the horizontal plane is 12-14 degrees.
Preferably, the diameter of the upper opening of the material pipe at the top circle is 800mm, and the lower opening of the material pipe is a rectangle with the diameter of 500 x 800 mm; the vertical height of the blanking pipe is 1000 mm.
Preferably, the total length of the slopes of the areas II and III is 1789mm, and the vertical height of the slopes is 1371 mm.
The invention strengthens the material dispersion effect through the novel decomposing furnace feeding device, ensures the effective mixing of the material and the rising high-temperature airflow in the decomposing furnace, leads the material to be completely carried to the 5-level preheater and enter the kiln after sedimentation, and leads the raw material to be fully and uniformly decomposed, thereby being beneficial to the calcining quality and the energy-saving effect.
Drawings
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
FIG. 1 is a schematic structural view of a novel feeding device of a cement kiln decomposing furnace according to an embodiment of the present invention
FIG. 2 is a schematic view of the structure of the feed port in the lower part of the region I1.
FIG. 3 is an enlarged view of a novel feeder device for a cement kiln decomposition furnace according to an embodiment of the present invention.
Detailed Description
As shown in figures 1-3, the invention discloses a novel feeding device of a cement kiln decomposing furnace.
The area I1 on the upper part of the feeding end adopts a rectangular feeding hole, when materials enter the area, the cylindrical materials are changed into an area II 2 of the rectangular flat material curtain entering device, and the feeding section of the area I1 of the device adopts an outward-inclined mode so as to ensure that all the materials enter the area II 2 of the device.
Region II 2 of the device is to break up the sticky materials of the material seeds from the upper level and play a role in properly reducing the material flow rate, and region II 2 is located under the feed inlet at the bottom of region I1.
The zone III 3 of the device conducts secondary scattering on the materials when the materials are guided into the zone IV 4 of the device at a proper angle and flow speed; the region III 3 is positioned below the region II 2 and on an inclined plane with the same inclination as the region II 2, the included angle between the inclined plane and the horizontal plane is 45-55 degrees, the inclined plane can be formed by pouring, and the surface of the inclined plane needs to be smooth. The combination interval of the device area III 3 and the device area IV 4 is used for preventing materials from directly entering the decomposing furnace through the outlet end of the device area IV 4 without passing through the device area II 2, if the area III 3 is not arranged, the area IV 4 is close to the area II 2, the materials are directly sucked into the decomposing furnace through the suction force in the decomposing furnace from the upper surface of the area II 2 and do not fall on the inclined plane of the area II 2, and the materials cannot be scattered; the materials which are not scattered enter the decomposing furnace in a columnar shape, the columnar material flow exceeds the lifting capacity of ascending airflow in the furnace, the dust density of airflow of the materials in the inner part of the decomposing furnace is too high, and when the dust density of the airflow exceeds a certain airflow density, the materials fall into a smoke chamber and enter the kiln to influence the calcining quality.
The device area IV 4 is used for scattering the material seeds in a grading way and entering the decomposing furnace, when the material enters the joint of the device area III 3 and the device area IV 4, the flow rate of the material seeds is changed due to different resistance of the material in the area, the material seeds are slowed down by the friction resistance of the material withdrawing plate in the lower layer of the material seeds so that the material is scattered in the outer decomposition layer area, and the material on the upper layer entering the device area IV 4 through the device area III 3 is flushed to the central area of the decomposing furnace far away from the outlet end of the device area II 2 due to smaller resistance of the material scattering plate.
The height of the feed channel in the area I1 round at heaven was 1000 mm.
The diameter of the upper opening at the place of the skyle is 800mm, and the diameter of the lower opening is 500 x 800 mm.
The vertical height of the slopes of the areas II 2 and III 3 is 1371 mm.
The included angle between the material spreading plate and the horizontal plane is 12-14 degrees.
The following table shows the coal consumption data before and after the use of a plurality of decomposing furnaces
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a novel feed arrangement of cement kiln dore furnace which characterized in that: the device comprises an area I, an area II, an area III and an area IV, wherein the area I comprises a feeding pipe in a hemispherical shape, the feeding pipe is obliquely arranged, and a feeding hole at the bottom of the feeding pipe is rectangular; the area II is positioned under the feed inlet of the area I and is a smooth inclined plane inclined downwards, and the area II of the device breaks up sticky materials of the materials coming from the upper level and plays a role in properly reducing the flow rate of the materials; the region III is positioned below the region II and on an inclined plane with the same inclination as the region II, and the region III of the device is used for secondarily scattering materials when the materials are guided into the region IV of the device at a proper angle and flow speed; and the region IV is connected to the bottom end of the region III and comprises a material scattering plate arranged downwards in a downward inclining mode.
2. The novel feeding device of the cement kiln decomposing furnace according to claim 1, characterized in that: the blanking pipe and the areas II and III are located on the same side of the vertical line, and the included angle between the blanking pipe and the vertical line is 10 degrees.
3. The novel feeding device of the cement kiln decomposing furnace according to claim 1, characterized in that: the included angle between the inclined plane and the horizontal plane is 45-55 degrees.
4. The novel feeding device of the cement kiln decomposing furnace according to claim 1, characterized in that: the included angle between the material scattering plate and the horizontal plane is 12-14 degrees.
5. The novel feeding device of the cement kiln decomposing furnace according to claim 1, characterized in that: the diameter of the upper opening of the blanking pipe is 800mm, and the lower opening of the blanking pipe is a rectangle with the diameter of 500 x 800 mm; the vertical height of the blanking pipe is 1000 mm.
6. The novel feeding device of the cement kiln decomposing furnace according to claim 1, characterized in that: the total length of the slopes of the areas II and III is 1789mm, and the vertical height of the slopes is 1371 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910939576.7A CN110671940A (en) | 2019-09-30 | 2019-09-30 | Novel feeding device of cement kiln decomposing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910939576.7A CN110671940A (en) | 2019-09-30 | 2019-09-30 | Novel feeding device of cement kiln decomposing furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110671940A true CN110671940A (en) | 2020-01-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910939576.7A Pending CN110671940A (en) | 2019-09-30 | 2019-09-30 | Novel feeding device of cement kiln decomposing furnace |
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| CN (1) | CN110671940A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101398257A (en) * | 2008-10-24 | 2009-04-01 | 南京西普机电工程有限公司 | Material even distribution device |
| CN101767093A (en) * | 2010-03-15 | 2010-07-07 | 天津水泥工业设计研究院有限公司 | Powder concentrator integrating functions of scattering, drying and grading into whole |
| CN202216558U (en) * | 2011-08-09 | 2012-05-09 | 淄博科邦热工技术开发有限公司 | Decomposing furnace material scattering device |
| CN204329623U (en) * | 2014-11-28 | 2015-05-13 | 天瑞集团水泥有限公司 | A kind of tremie pipe modifying device of dore furnace |
| CN206073732U (en) * | 2016-08-22 | 2017-04-05 | 南京圣火环境科技有限公司 | A kind of efficient material-strewing device of new dry process rotary kiln heat exchanger tube |
| CN207850077U (en) * | 2017-11-03 | 2018-09-11 | 胡长庚 | A kind of uniform cement slurry powder distributing device of cloth |
| CN212431769U (en) * | 2019-09-30 | 2021-01-29 | 阿克苏天山多浪水泥有限责任公司 | Novel feeding device of cement kiln decomposing furnace |
-
2019
- 2019-09-30 CN CN201910939576.7A patent/CN110671940A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101398257A (en) * | 2008-10-24 | 2009-04-01 | 南京西普机电工程有限公司 | Material even distribution device |
| CN101767093A (en) * | 2010-03-15 | 2010-07-07 | 天津水泥工业设计研究院有限公司 | Powder concentrator integrating functions of scattering, drying and grading into whole |
| CN202216558U (en) * | 2011-08-09 | 2012-05-09 | 淄博科邦热工技术开发有限公司 | Decomposing furnace material scattering device |
| CN204329623U (en) * | 2014-11-28 | 2015-05-13 | 天瑞集团水泥有限公司 | A kind of tremie pipe modifying device of dore furnace |
| CN206073732U (en) * | 2016-08-22 | 2017-04-05 | 南京圣火环境科技有限公司 | A kind of efficient material-strewing device of new dry process rotary kiln heat exchanger tube |
| CN207850077U (en) * | 2017-11-03 | 2018-09-11 | 胡长庚 | A kind of uniform cement slurry powder distributing device of cloth |
| CN212431769U (en) * | 2019-09-30 | 2021-01-29 | 阿克苏天山多浪水泥有限责任公司 | Novel feeding device of cement kiln decomposing furnace |
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