CN114646222B - Annular cooling beam and double-chamber kiln - Google Patents
Annular cooling beam and double-chamber kiln Download PDFInfo
- Publication number
- CN114646222B CN114646222B CN202210306397.1A CN202210306397A CN114646222B CN 114646222 B CN114646222 B CN 114646222B CN 202210306397 A CN202210306397 A CN 202210306397A CN 114646222 B CN114646222 B CN 114646222B
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- Prior art keywords
- annular
- flow guiding
- channel
- leading
- guiding structure
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Classifications
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- 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
- F27D9/00—Cooling of furnaces or of charges therein
-
- 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
- F27D9/00—Cooling of furnaces or of charges therein
- F27D2009/0002—Cooling of furnaces
- F27D2009/0005—Cooling of furnaces the cooling medium being a gas
Abstract
The invention relates to an annular cooling beam, which comprises an annular beam, a flow guiding structure, an air inlet and an air outlet; the flow guide structures are arranged at intervals around the annular beam; the air inlet is arranged on the flow guiding structure and used for conveying cold air into the flow guiding structure; the air outlet and the air inlet are arranged on the flow guiding structure at intervals and used for guiding cold air in the flow guiding structure out of the flow guiding structure. The invention has the advantages that the annular cooling Liang Daoliu plate is shortened, the occupied area of the cooling beam is reduced, and the cooling beam has free flow radial channels with enough cross sections, so that the cooling area in the kiln is enlarged, and the service life of the refractory material is prolonged.
Description
Technical Field
The invention relates to the technical field of cooling in a double-hearth kiln, in particular to an annular cooling beam and a double-hearth kiln.
Background
The core of the double-hearth kiln is absolutely refractory bricks, the service life of the refractory bricks directly influences the yield and performance of the kiln, the previous design of the double-hearth kiln is in the form of corbels and suspended tile cylinders, the cooling guide plates are too long, the occupied kiln area is too large, and therefore the air flow in the shaft is influenced by dust and alkali accumulation, the service life of the refractory bricks is shortened, and the kiln is required to be closed periodically to clean a channel.
Disclosure of Invention
In view of the shortcomings of the prior art, one aspect of the present invention provides an annular cooling beam, comprising:
a ring beam;
the guide structures are arranged around the annular beam at intervals;
the air inlet is arranged on the flow guiding structure and used for conveying cold air into the flow guiding structure;
and the air outlet is arranged on the flow guiding structure at a distance from the air inlet and is used for guiding cold air in the flow guiding structure out of the flow guiding structure.
The invention has the advantages that the annular cooling Liang Daoliu plate is shortened, the occupied area of the cooling beam is reduced, and the cooling beam has free flow radial channels with enough cross sections, so that the cooling area in the kiln is enlarged, and the service life of the refractory material is prolonged.
Further, the flow guiding structure comprises a flow guiding cavity, a flow guiding channel, a first flow guiding channel and a second flow guiding channel; the leading-in channel is arranged in the middle of the cavity, the first leading-out channel is arranged on one side of the leading-in channel, and the second leading-out channel is arranged on the other side of the leading-in channel; one end of the leading-in channel is communicated with the air inlet, the other end of the leading-in channel is communicated with one end of the first leading-out channel and one end of the second leading-out channel, and the other end of the first leading-out channel and the other end of the second leading-out channel are respectively connected with one air outlet.
Preferably, the aperture of the air inlet is gradually reduced along the air inlet direction. Specifically, the aperture of the air inlet is gradually reduced, so that the cold air conveyed in can be concentrated, and the cold air is prevented from being diffused.
Further, the first guiding-out channel and the second guiding-out channel are both folded-back guiding channels. Specifically, the arranged folded-back type diversion channel saves the occupied area of the cold air conveying path.
Further, the ring beam comprises a ring plate and a ring cylinder; the annular cylinder and the annular plate are concentrically arranged from top to bottom, and the cylinder wall of the annular cylinder is vertically arranged on the surface of the annular plate.
Further, the flow guiding structure is connected to the outer wall of the annular cylinder and the outer side of the annular plate.
Further, a hanging piece is arranged on the ring beam; one end of the hanging piece is connected to the inner side of the annular plate, and the other end of the hanging piece is connected to the flow guiding structure.
Further, the hanging piece further comprises a first cushion block and a second cushion block; the first cushion block is connected to the inner side of the annular plate, and one end of the pendant is clamped on the first cushion block; the second cushion block is connected to the flow guiding structure, and the other end of the hanging piece is supported on the second cushion block.
Furthermore, refractory bricks are also arranged on the hanging pieces; the hanging piece is provided with a groove, the refractory bricks are hung on the groove, and the refractory bricks are sequentially hung along the groove. Specifically, through connecting the resistant firebrick on the pendant, can promote the fire-resistant ability of whole annular cooling beam, extension annular cooling beam's life.
Further, an auxiliary flow guide structure is arranged on the ring beam; the auxiliary flow guiding structure comprises a flow guiding inlet, a flow guiding pipeline and a flow guiding outlet which are sequentially communicated; the guide inlet is arranged on one side of the air inlet, the guide pipeline is arranged on the annular beam along the inner side of the hanging piece, and the guide pipeline sequentially penetrates through the annular plate and the wall of the annular cylinder according to the guide flow direction and is connected with the guide outlet.
The invention also provides a double-hearth kiln, which comprises a material distribution structure, a preheating section, a calcining section and a cooling section; wherein the cooling section is provided with the annular cooling beam according to any one of the above.
The double-hearth kiln has the advantages that the annular cooling Liang Daoliu plate arranged in the double-hearth kiln is shortened, the occupied area of the cooling beam is reduced, and the free-flow radial channel with enough cross section is provided, so that the cooling area in the kiln is enlarged, and the service life of the kiln body refractory material is prolonged.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to designate like parts throughout the figures.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the position of the flow guiding structure in the present invention;
FIG. 3 is a schematic cross-sectional view of an endless beam in accordance with the present invention;
FIG. 4 is a schematic cross-sectional view of an air intake of the present invention;
FIG. 5 is a schematic cross-sectional view of the air outlet of the present invention;
FIG. 6 is a schematic illustration of the flow of air within the flow directing structure of the present invention;
FIG. 7 is a schematic view of a structure of hanging refractory bricks on a hanger according to the present invention;
FIG. 8 is a schematic view of a double chamber kiln structure of the present invention;
in the figure, 1, a ring beam, 2, a diversion structure, 3, an air inlet, 4, an air outlet, 5, a hanging piece, 6, an auxiliary diversion structure, 7 and refractory bricks;
11. the annular cylinder, 12, the annular plate, 21, the diversion chamber, 22, the leading-in channel, 23, the first leading-out channel, 24, the second leading-out channel, 51, the first cushion block, 52, the second cushion block, 53, the groove, 61, the diversion inlet, 62, the diversion pipeline, 63, the diversion outlet, 71 and the connecting piece.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
Referring to fig. 1-2, an annular cooling beam disclosed by the invention comprises an annular beam 1, a flow guiding structure 2, an air inlet 3 and an air outlet 4; the flow guiding structures 2 are arranged at intervals around the annular beam 1; the air inlet 3 is arranged on the flow guiding structure 2 and is used for conveying cold air into the flow guiding structure 2; the air outlet 4 is arranged on the flow guiding structure 2 at a distance from the air inlet 3 and is used for guiding cold air in the flow guiding structure 2 out of the flow guiding structure 2. It should be understood that the air inlet 3 is connected with external cold air, the cold air is transmitted to the air outlet 4 through the flow guiding structure 2, and the cold air of the air outlet 4 is blown onto the kiln wall of the double-hearth kiln to cool, so that the height Wen Sunhao of the kiln wall and the refractory material arranged on the kiln wall is improved, and the service life of the kiln wall and the refractory material is prolonged.
As shown in fig. 1 and 4, the diameter of the intake port 3 gradually decreases in the intake direction. Specifically, the aperture of the air inlet 3 is gradually reduced, so that the cold air conveyed in can be concentrated, and the cold air is prevented from being diffused.
Referring to fig. 6, the flow guiding structure 2 includes a flow guiding chamber 21, a guiding channel 22, a first guiding channel 23 and a second guiding channel 24; the lead-in channel 22 is arranged in the middle of the chamber, the first lead-out channel 23 is arranged at one side of the lead-in channel 22, and the second lead-out channel 24 is arranged at the other side of the lead-in channel 22; one end of the leading-in channel 22 is communicated with the air inlet 3, the other end is communicated with one end of the first leading-out channel 23 and one end of the second leading-out channel 24, and the other end of the first leading-out channel 23 and the other end of the second leading-out channel 24 are respectively connected with one air outlet 4. It should be appreciated that fig. 6 illustrates the internal structure of a flow directing structure.
With continued reference to fig. 6, the first guide-out channel 23 and the second guide-out channel 24 are both folded-back guide channels. Specifically, the arranged folded diversion channel saves the area and the space occupied by the cold air conveying path.
Referring to fig. 3 to 5, the ring beam 1 includes a ring plate 12 and a ring cylinder 11; the annular cylinder 11 and the annular plate 12 are concentrically arranged from top to bottom, and the cylinder wall of the annular cylinder 11 is vertically arranged on the surface of the annular plate 12. It should be understood that fig. 3-5 are cross-sectional structures of the annular cooling beam, and it can be seen from the figures that the wall of the annular cylinder 11 is vertically disposed on the plate surface of the annular plate 12, and the annular cylinder 11 and the annular plate 12 are preferably made of steel, wherein the wall of the annular cylinder 11 can be welded on the plate surface of the annular plate 12. In this embodiment, the flow guiding structure 2 is connected to the outer wall of the annular cylinder 11 and the outer side of the annular plate 12.
Referring to fig. 3 and 7, a hanging piece 5 is further arranged on the ring beam 1; one end of the hanging piece 5 is connected to the inner side of the annular plate 12, and the other end is connected to the flow guiding structure 2. As shown, the hanger 5 is an arc-shaped hanger.
With continued reference to fig. 3 and 7, the suspension member 5 further includes a first pad 51 and a second pad 52; the first cushion block 51 is connected to the inner side of the annular plate 12, and one end of the hanging piece 5 is clamped on the first cushion block 51; the second cushion block 52 is connected to the flow guiding structure 2, and the other end of the hanging piece 5 is supported on the second cushion block 52. As shown in the figure, a U-shaped bayonet is arranged at one end of the first cushion block 51 clamped by the hanging piece 5, and an arc-shaped notch is arranged at one end of the second cushion block 52 supported by the hanging piece 5.
Referring to fig. 7, refractory bricks 7 are further connected to the hanger 5; the hanging piece 5 is provided with a groove 53, the refractory bricks 7 are hung on the groove 53, and a plurality of refractory bricks 7 are sequentially hung along the groove 53. As shown, one end of the refractory brick 7 is hung on the groove 53 by a connecting piece 71, and a plurality of refractory bricks 7 are sequentially arranged along the outer side of the hanger 5. Specifically, the refractory brick 7 connected to the hanger 5 can improve the refractory ability of the entire annular cooling beam and extend the service life of the annular cooling beam.
Referring to fig. 4, an auxiliary diversion structure 6 is further arranged on the ring beam 1; the auxiliary diversion structure 6 comprises a diversion inlet 61, a diversion pipeline 62 and a diversion outlet 63 which are sequentially communicated; the diversion inlet 61 is arranged at one side of the air inlet 3, the diversion pipeline 62 is arranged on the annular beam 1 along the inner side of the hanging piece 5, and the diversion pipeline 62 sequentially penetrates through the annular plate 12 and the wall of the annular cylinder 11 according to diversion flow direction and then is connected with the diversion outlet 63. It should be understood that the auxiliary flow guiding structure 6 well utilizes the residual space of the ring beam structure, and simultaneously adds a new cold air introducing channel, so that the cooling efficiency of the whole annular cooling beam can be improved, and a plurality of auxiliary flow guiding structures 6 are arranged around the ring beam.
Referring to fig. 8, in this embodiment, a double-chamber kiln is disclosed, which includes a material distribution structure, a preheating section, a calcining section, and a cooling section that are sequentially connected from top to bottom; wherein the cooling section is provided with an annular cooling beam according to any one of the above embodiments. The invention has the advantages that the annular cooling Liang Daoliu plate arranged in the double-chamber kiln is shortened, the occupied area of the cooling beam is reduced, and the free flow radial passage with enough cross section is provided, so that the cooling area in the kiln is enlarged, and the service life of the kiln body refractory material is prolonged.
It should be noted that in this document relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Finally, it should be noted that: it is apparent that the above examples are only illustrative of the present invention and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present invention.
Claims (6)
1. An annular chilled beam, comprising:
a ring beam;
the guide structures are arranged around the annular beam at intervals;
an air inlet arranged on the diversion structure for transmitting cold air to the diversion structure
In the structure;
an air outlet arranged on the flow guiding structure at a distance from the air inlet, and a water inlet arranged on the flow guiding structure at a certain distance from the air inlet
Guiding cold air in the flow guiding structure out of the flow guiding structure;
the annular beam comprises an annular plate and an annular cylinder; the annular cylinder and the annular plate are concentrically arranged from top to bottom, and the cylinder wall of the annular cylinder is vertically arranged on the surface of the annular plate;
the flow guiding structure is connected to the outer wall of the annular cylinder and the outer side of the annular plate;
a hanging piece is further arranged on the ring beam; one end of the hanging piece is connected to the inner side of the annular plate, and the other end of the hanging piece is connected to the flow guiding structure;
the pendant further comprises a first cushion block and a second cushion block; the first cushion block is connected to the inner side of the annular plate, and one end of the pendant is clamped on the first cushion block; the second cushion block is connected to the flow guiding structure, and the other end of the hanging piece is supported on the second cushion block;
the pendant card is established the one end of first cushion is provided with U type bayonet socket, the pendant is strutted the one end of second cushion sets up the arc breach.
2. The annular chilled beam of claim 1, wherein the flow directing structure comprises a flow directing chamber, a flow directing channel, a first flow directing channel, and a second flow directing channel; the leading-in channel is arranged in the middle of the cavity, the first leading-out channel is arranged on one side of the leading-in channel, and the second leading-out channel is arranged on the other side of the leading-in channel; one end of the leading-in channel is communicated with the air inlet, the other end of the leading-in channel is communicated with one end of the first leading-out channel and one end of the second leading-out channel, and the other end of the first leading-out channel and the other end of the second leading-out channel are respectively connected with one air outlet.
3. The annular chilled beam of claim 2, wherein the first and second outgoing channels are both turn-back channels.
4. The annular cooling beam according to claim 1, wherein refractory bricks are further provided on the hanger; the hanging piece is provided with a groove, the refractory bricks are hung on the groove, and the refractory bricks are sequentially hung along the groove.
5. The annular cooling beam according to claim 1, wherein an auxiliary flow guiding structure is further provided on the annular beam; the auxiliary flow guiding structure comprises a flow guiding inlet, a flow guiding pipeline and a flow guiding outlet which are sequentially communicated; the guide inlet is arranged on the adjacent side of the air inlet, the guide pipeline is arranged on the annular beam along the inner side of the hanging piece, and the guide pipeline sequentially penetrates through the annular plate and the wall of the annular cylinder according to the guide flow direction and then is connected with the guide outlet.
6. The double-hearth kiln is characterized by comprising a material distribution structure, a preheating section, a calcining section and a cooling section which are sequentially communicated from top to bottom; wherein the cooling section is provided with an annular cooling beam according to any one of claims 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210306397.1A CN114646222B (en) | 2022-03-25 | 2022-03-25 | Annular cooling beam and double-chamber kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210306397.1A CN114646222B (en) | 2022-03-25 | 2022-03-25 | Annular cooling beam and double-chamber kiln |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114646222A CN114646222A (en) | 2022-06-21 |
| CN114646222B true CN114646222B (en) | 2023-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210306397.1A Active CN114646222B (en) | 2022-03-25 | 2022-03-25 | Annular cooling beam and double-chamber kiln |
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Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104211309B (en) * | 2014-09-05 | 2016-02-10 | 石家庄新华能源环保科技股份有限公司 | A kind of suspension cylinder formula also flows the two thorax kiln of accumulation of heat |
| CN105157415B (en) * | 2015-09-01 | 2018-03-09 | 北京嘉永会通能源科技有限公司 | Ring-shaped shaft kiln |
| CN106698977B (en) * | 2015-11-17 | 2021-03-09 | 上海宝冶建设工业炉工程技术有限公司 | Manufacturing method of double-chamber lime kiln angle ring equipment |
| CN205874232U (en) * | 2016-07-06 | 2017-01-11 | 石家庄新华能源环保科技股份有限公司 | Burning roof beam of gas -cooled |
| CN205953856U (en) * | 2016-08-17 | 2017-02-15 | 博广热能股份有限公司 | Suspension cylinder strutting arrangement is used in two thorax formula limekilns |
| CN205953857U (en) * | 2016-08-18 | 2017-02-15 | 上海宝冶建设工业炉工程技术有限公司 | Two thorax kilns of taking forced draft hang cooling wall |
| CN108996927B (en) * | 2018-07-29 | 2020-08-04 | 中冶南方武汉钢铁设计研究院有限公司 | Double-chamber shaft kiln with cooling support upright post |
| DE102018220727A1 (en) * | 2018-11-30 | 2020-06-04 | Thyssenkrupp Ag | Oven with a protective segment at the oven outlet |
| CN111268927A (en) * | 2020-03-23 | 2020-06-12 | 宝钢工程技术集团有限公司 | Double-chamber lime kiln with cantilever beam structure |
| CN112094058A (en) * | 2020-09-17 | 2020-12-18 | 石家庄新华能源环保科技股份有限公司 | Double-chamber kiln reconstructed from shaft kiln |
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- 2022-03-25 CN CN202210306397.1A patent/CN114646222B/en active Active
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| CN114646222A (en) | 2022-06-21 |
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