CN115385588A - Lime vertical cooler for rotary kiln - Google Patents
Lime vertical cooler for rotary kiln Download PDFInfo
- Publication number
- CN115385588A CN115385588A CN202211040735.8A CN202211040735A CN115385588A CN 115385588 A CN115385588 A CN 115385588A CN 202211040735 A CN202211040735 A CN 202211040735A CN 115385588 A CN115385588 A CN 115385588A
- Authority
- CN
- China
- Prior art keywords
- main body
- cooling
- rotary kiln
- lime
- groups
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 235000008733 Citrus aurantifolia Nutrition 0.000 title claims abstract description 51
- 235000011941 Tilia x europaea Nutrition 0.000 title claims abstract description 51
- 239000004571 lime Substances 0.000 title claims abstract description 51
- 238000001816 cooling Methods 0.000 claims abstract description 79
- 239000000463 material Substances 0.000 claims abstract description 16
- 238000005192 partition Methods 0.000 claims abstract description 6
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- 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 Details (AREA)
Abstract
A lime vertical cooler for a rotary kiln relates to a lime vertical cooler, which comprises a kiln head cover, a main body, a grate plate and a cooling device, wherein the upper part of the main body is provided with the kiln head cover, the bottom of the main body is provided with a blanking device, the main body on the left side of the lower part of the kiln head cover is provided with a large material clearing port inclining downwards, the grate plate is fixed in the main body through a plurality of bolts and is fixed in a high-low mode, the high end of the grate plate is fixed on the inner wall of the right side of the main body, and the low end of the grate plate is arranged close to the large material clearing port; a central wind tower is arranged in the main body and at the center of the lower part of the main body, and a cross-shaped partition wall is arranged at the upper part of the central wind tower to divide the blanking space into four cooling areas; four groups of cooling devices are symmetrically distributed along the central wind tower, and the four groups of cooling devices are respectively positioned in the four cooling areas; the invention has simple structure and convenient use, and reduces the influence of more flowing of cooling air along the side wall.
Description
Technical Field
The invention relates to a lime vertical cooler, in particular to a lime vertical cooler for a rotary kiln.
Background
As is known, after lime is calcined in a rotary kiln, the temperature of the lime can reach 1000-1100 ℃, if the lime is directly stored in a finished product warehouse, on one hand, the temperature is too high, transportation equipment cannot meet the requirement, and on the other hand, the heat efficiency of the whole calcining system is greatly reduced due to a large amount of sensible heat taken away by the lime; therefore, lime discharged from the rotary kiln needs to be forcibly cooled by air, so that the lime is conveniently conveyed to a finished product warehouse by conveying equipment, and meanwhile, the temperature of the air after heat exchange is greatly increased to participate in combustion supporting of the rotary kiln fuel, so that the heat efficiency of the system is greatly improved.
The existing vertical cooling device adopts a spherical or cylindrical cooling device, then cooling air is introduced, and the cooling air and lime flow in a reverse direction to complete heat exchange between the lime and the cooling air; the cooling of this kind of structure lime, the flow of cooling air is uneven, and the cooling air can produce the side wall effect, and a large amount of cooling air flows out along the lateral wall of cooler, causes the lime around the lateral wall, and the cooling temperature is low, and the lime in the middle of the cooler is not by better cooling, and lime ejection of compact temperature is inhomogeneous, and cooling efficiency is low.
Therefore, the invention is necessary to invent a lime vertical cooler for a high-efficiency rotary kiln, which avoids the side wall effect and solves the problems of uneven lime cooling and low cooling efficiency.
Disclosure of Invention
In order to overcome the defects in the background art, the invention discloses a lime vertical cooler for a rotary kiln.
In order to realize the purpose, the invention adopts the following technical scheme:
a lime vertical cooler for a rotary kiln comprises a kiln head cover, a main body, a grate plate and a cooling device, wherein the kiln head cover is arranged at the upper part of the main body, a blanking device is arranged at the bottom of the main body, a large material clearing opening inclining downwards is formed in the main body on the left side of the lower part of the kiln head cover, the grate plate is fixed in the main body through a plurality of bolts and is fixed in a high-low mode, the high end of the grate plate is fixed on the inner wall of the right side of the main body, and the low end of the grate plate is arranged close to the large material clearing opening; a central air tower is arranged in the main body and at the center of the lower part of the main body, and a cross-shaped partition wall is arranged at the upper part of the central air tower to divide the blanking space into four cooling areas; four groups of cooling devices are symmetrically distributed along the central wind tower, and the four groups of cooling devices are respectively positioned in the four cooling areas.
The main body of the lime vertical cooler for the rotary kiln is of a cube structure.
The size of a square hole on a grid plate of the lime vertical cooler for the rotary kiln is 100 to 200mm.
The lime vertical cooler for the rotary kiln comprises coolers and cooling air channels.
The lime vertical cooler for the rotary kiln is characterized in that the lower part of the central air tower is connected with an independent cooling fan, and every two groups of cooling devices share one cooling fan.
The lime vertical cooler for the rotary kiln is characterized in that four groups of blanking devices are arranged and respectively correspond to the four groups of cooling devices, and each blanking device comprises a conical blanking hopper and a valve arranged at the bottom of the conical blanking hopper.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
according to the lime vertical cooler for the rotary kiln, the central air tower is arranged, so that the cooling uniformity of the materials in the middle of the stack is ensured, the four groups of cooling devices are arranged in different areas, the air quantity of cooling air entering each area can be adjusted according to the discharge temperature, and the cooling uniformity of the materials is effectively ensured.
According to the lime vertical cooler for the rotary kiln, large lime blocks or other impurities in the rotary kiln are filtered out through the grate plate, the uniform size and granularity of lime entering a cooling area are ensured, the uniform porosity among the lime is ensured, the difference of resistance of cooling air on the whole working surface is small, and the passing air volume is uniform; the invention has simple structure and convenient use, and reduces the influence of more cooling air flowing along the side wall.
Drawings
FIG. 1 is a schematic diagram of the present invention.
Fig. 2 is a layout of the cooling device and the central wind tower 7 of the present invention.
Fig. 3 is a schematic top view of the cold cooling device and central wind tower 7 of the present invention.
In the figure: 1. a kiln head cover; 2. a main body; 3. a grid plate; 4. a cooling device; 5. a cooling fan; 6. a blanking device; 7. a central wind tower; 8. a large material removing opening; 9. partition walls; 10. and a cooling air duct.
Detailed Description
The present invention will be explained in detail by the following examples, which are disclosed for the purpose of protecting all technical improvements within the scope of the present invention.
The lime vertical cooler for the rotary kiln is characterized by comprising a kiln head cover 1, a main body 2, a grate plate 3 and a cooling device 4, wherein the kiln head cover 1 is arranged at the upper part of the main body 2, a blanking device 6 is arranged at the bottom of the main body 2, a large material clearing opening which is inclined downwards is formed in the main body 2 on the left side of the lower part of the kiln head cover 1, the grate plate 3 is fixed in the main body 2 through a plurality of bolts and is fixed in a high-low shape, the high end of the grate plate 3 is fixed on the inner wall of the right side of the main body 2, and the low end of the grate plate is arranged close to the large material clearing opening; a central wind tower 7 is arranged in the main body 2 and at the center of the lower part, a cross-shaped partition wall 9 is arranged at the upper part of the central wind tower 7, and the blanking space is divided into four cooling areas; four groups of cooling devices 4 are symmetrically distributed along the central wind tower 7, and the four groups of cooling devices 4 are respectively positioned in four cooling areas.
Further, the kiln head cover 1 is an outlet through which lime flows into the vertical cooler from the rotary kiln, and is an inlet through which cooling air after heat exchange enters the rotary kiln to participate in combustion supporting; the main body 2 is a storage unit and is used for storing lime entering a cooler from the rotary kiln; the grate plate 3 is a filtering unit and is used for filtering out larger lime blocks or other impurities in the rotary kiln;
the main body 2 of the lime vertical cooler for the rotary kiln is of a cube structure.
The size of a square hole on a grid plate 3 of the lime vertical cooler for the rotary kiln is 100 to 200mm.
The cooling device 4 of the lime vertical cooler for the rotary kiln comprises a cooler and a cooling air duct 10.
The lime vertical cooler for the rotary kiln is characterized in that the lower part of the central air tower 7 is connected with an independent cooling fan, every two groups of cooling devices 4 share one cooling fan, the air quantity of the cooling fan is adjusted according to the difference of the discharging temperature of each region, and the cooling of the whole system can be guaranteed to be more uniform.
The lime vertical cooler for the rotary kiln is characterized in that four groups of blanking devices 6 are arranged and respectively correspond to the four groups of cooling devices 4, and each blanking device 6 comprises a conical blanking hopper and a valve arranged at the bottom of the conical blanking hopper;
further, the blanking device 6 is used for sending cooled lime into external conveying equipment.
When the lime vertical cooler for the rotary kiln is used, the lime entering the vertical cooler from the rotary kiln has the granularity of 10 to 50mm, a large material can be generated in the combustion process, the lime falls on the grid plate 3 and is filtered by the grid plate arranged obliquely, the material smaller than the hole size above the grid plate 3 falls into a cooling area in the main body 2, and the material larger than the hole size above the grid plate 3 enters the large material clearing port through the oblique grid plate and is discharged, so that the cooling effect is prevented from being influenced; the cooling area is divided into four parts by a cross partition wall 9 arranged on the central air tower 7, a cooling device 4 is arranged in each cooling area, the height of the central air tower 7 is higher than that of the cooling device 4, the central air tower 7 independently supplies air to cool materials at the center through a cooling fan at the bottom, the other four groups of cooling devices 4 are provided with cooling air by two cooling fans, the air volume of the cooling fan is adjusted according to the difference of the discharging temperature of each area, and the cooling of the whole system is ensured to be more uniform.
The present invention is not described in detail in the prior art.
The embodiments selected for the purpose of disclosing the invention, are presently considered to be suitable, it being understood, however, that the invention is intended to cover all variations and modifications of the embodiments which fall within the spirit and scope of the invention.
Claims (6)
1. The utility model provides a vertical cooler of lime for rotary kiln, includes kiln hood cover, main part, comb board and cooling device, characterized by: the kiln head cover is arranged at the upper part of the main body, the blanking device is arranged at the bottom of the main body, the main body on the left side of the lower part of the kiln head cover is provided with a large material clearing opening inclining downwards, the grate plate is fixed in the main body through a plurality of bolts in a high-low shape, the high end of the grate plate is fixed on the inner wall of the right side of the main body, and the low end of the grate plate is arranged close to the large material clearing opening; a central air tower is arranged in the main body and at the center of the lower part of the main body, and a cross-shaped partition wall is arranged at the upper part of the central air tower to divide the blanking space into four cooling areas; four groups of cooling devices are symmetrically distributed along the central wind tower, and the four groups of cooling devices are respectively positioned in the four cooling areas.
2. The lime shaft cooler for a rotary kiln as set forth in claim 1, wherein: the main body is arranged in a cube structure.
3. The lime shaft cooler for a rotary kiln as set forth in claim 1, wherein: the size of a square hole on the grid plate is 100 to 200mm.
4. The lime shaft cooler for a rotary kiln according to claim 1, which is characterized in that: and the cooling devices comprise coolers and cooling air ducts.
5. The lime shaft cooler for a rotary kiln according to claim 1, which is characterized in that: the lower part of the central wind tower is connected with an independent cooling fan, and every two groups of cooling devices share one cooling fan.
6. The lime shaft cooler for a rotary kiln according to claim 1, which is characterized in that: the blanking device is provided with four groups which respectively correspond to the four groups of cooling devices, and the blanking device comprises a conical blanking hopper and a valve arranged at the bottom of the conical blanking hopper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211040735.8A CN115385588A (en) | 2022-08-29 | 2022-08-29 | Lime vertical cooler for rotary kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211040735.8A CN115385588A (en) | 2022-08-29 | 2022-08-29 | Lime vertical cooler for rotary kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115385588A true CN115385588A (en) | 2022-11-25 |
Family
ID=84123336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211040735.8A Pending CN115385588A (en) | 2022-08-29 | 2022-08-29 | Lime vertical cooler for rotary kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115385588A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374769A (en) * | 2011-09-30 | 2012-03-14 | 鞍山市华杰建材技术开发有限公司 | Calcinating shaft kiln comprehensively utilizing heat energy unit temperature field |
| CN102674718A (en) * | 2012-06-06 | 2012-09-19 | 江苏大峘集团有限公司 | Kiln head screening device of active lime calcination rotary kiln |
| CN106892578A (en) * | 2017-04-17 | 2017-06-27 | 王长春 | A kind of full recovery CO2Lime kiln device |
| CN210419770U (en) * | 2019-09-05 | 2020-04-28 | 陕西延河水泥机械有限公司 | Vertical cooling device for active lime |
| CN211261732U (en) * | 2019-12-30 | 2020-08-14 | 朝阳重机冶金工业有限公司 | Novel cooling device for vertical lime cooler |
| CN215975562U (en) * | 2021-08-26 | 2022-03-08 | 洛阳千百度窑炉科技有限公司 | Novel environment-friendly lime shaft kiln |
-
2022
- 2022-08-29 CN CN202211040735.8A patent/CN115385588A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374769A (en) * | 2011-09-30 | 2012-03-14 | 鞍山市华杰建材技术开发有限公司 | Calcinating shaft kiln comprehensively utilizing heat energy unit temperature field |
| CN102674718A (en) * | 2012-06-06 | 2012-09-19 | 江苏大峘集团有限公司 | Kiln head screening device of active lime calcination rotary kiln |
| CN106892578A (en) * | 2017-04-17 | 2017-06-27 | 王长春 | A kind of full recovery CO2Lime kiln device |
| CN210419770U (en) * | 2019-09-05 | 2020-04-28 | 陕西延河水泥机械有限公司 | Vertical cooling device for active lime |
| CN211261732U (en) * | 2019-12-30 | 2020-08-14 | 朝阳重机冶金工业有限公司 | Novel cooling device for vertical lime cooler |
| CN215975562U (en) * | 2021-08-26 | 2022-03-08 | 洛阳千百度窑炉科技有限公司 | Novel environment-friendly lime shaft kiln |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20221125 |