CN201191128Y - Reversed flow type heat-exchanging drying arrangement - Google Patents
Reversed flow type heat-exchanging drying arrangement Download PDFInfo
- Publication number
- CN201191128Y CN201191128Y CNU2008200981356U CN200820098135U CN201191128Y CN 201191128 Y CN201191128 Y CN 201191128Y CN U2008200981356 U CNU2008200981356 U CN U2008200981356U CN 200820098135 U CN200820098135 U CN 200820098135U CN 201191128 Y CN201191128 Y CN 201191128Y
- Authority
- CN
- China
- Prior art keywords
- drying kiln
- drying
- combustion chamber
- heat exchange
- flow type
- 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.)
- Expired - Fee Related
Links
- 238000001035 drying Methods 0.000 title claims abstract description 44
- 238000002485 combustion reaction Methods 0.000 claims abstract description 22
- 239000003034 coal gas Substances 0.000 claims abstract description 5
- 238000007599 discharging Methods 0.000 claims description 6
- 239000000779 smoke Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract 1
- 239000002994 raw material Substances 0.000 description 10
- 239000008188 pellet Substances 0.000 description 9
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000008646 thermal stress Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
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- Drying Of Solid Materials (AREA)
Abstract
The utility model discloses a counter-flow type heat exchange drier, wherein the drying kiln adopts a cylinder structure and is inclined, whose upper and lower ends are respectively provided with an inlet shuttle groove and an outlet shuttle groove, the outlet of the drying kiln is connected with the hot air outlet of a burning chamber, the inlet end of the drying kiln is connected with a chimney and the burning chamber adopts a cylinder structure. The counter-flow type heat exchange structure has high heat utilization, reduced energy consumption and saved cost, and can resolve the material block problem at the inlet. Two side walls of the burning chamber are provided with coal gas burners at up and down, while each side wall has two burners, thereby realizing complete combustion, concentrating heat, saving energy and confirming drying efficiency.
Description
Technical field
The utility model relates to steel plant pellet raw material is carried out dry equipment, is specifically related to a kind of reverse-flow heat exchange drying device.
Background technology
In the prior art, steel plant carry out dry method to pellet raw material and adopt the downflow type heat-exchanging method usually, it is the feed end that the hot-blast outlet of combustion chamber is located at drying kiln, pellet raw material enters drying kiln in the lump with the oven dry hot blast, moisture in the pellet raw material is taken out of by the oven dry hot blast then, and pellet raw material is discharged through discharging shuttle groove.But the heat utilization efficiency of this heat exchange drying device is lower, has the present situation of the frequent putty of feed end.And original drying kiln combustion chamber is a cube shaped, causes thermal stress to concentrate easily, and is especially apparent in view at the top edge, had a strong impact on the life-span of combustion chamber.Hot waste gas enters drying kiln by the flue gas leading between combustion chamber and the drying kiln from kiln hood, and material also enters drying kiln from kiln hood, makes air-flow not smooth, greatly reduces drying efficiency.
The utility model content
At the prior art above shortcomings, the purpose of this utility model provides a kind of thermal efficiency height, and solves the reverse-flow heat exchange drying device of putty problem.
The purpose of this utility model is achieved in that reverse-flow heat exchange drying device, comprises drying kiln, it is characterized in that described drying kiln is tubular structure and is obliquely installed, and its upper/lower terminal is provided with charging shuttle groove and discharging shuttle groove respectively; The discharge end of drying kiln connects the hot-blast outlet of combustion chamber, and the feed end of drying kiln connects the smoke evacuation chimney.In addition, described Combustion chamber design is a cylinder-like structure.
Compared to existing technology, the utlity model has following advantage:
Owing to adopt reverse-flow heat exchange structure, obviously, therefore can reduce burnup than the heat utilization efficiency height of downflow type, save cost; Simultaneously, adopt the adverse current heated-air drying, changed the hot blast outlet of original combustion chamber and be installed in feed end, and the present situation of the frequent putty of feed end.In addition, the combustion chamber is changed into cylindric by original cube shaped, has reduced the thermal stress that the combustion chamber is stood under hot conditions, has prolonged the service life of combustion chamber.
The two side of combustion chamber is provided with the coal gas burner of upper and lower arrangement, and two of each sides can make burning more abundant like this, and heat is more concentrated, both energy savings the energy, also guaranteed drying efficiency.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
As shown in Figure 1, reverse-flow heat exchange drying device comprises drying kiln 3, and its improvement is that drying kiln 3 is cylinder-like structure, drying kiln 3 is obliquely installed its upper/lower terminal charging shuttle groove 6 and discharging shuttle groove 4 is set respectively, and the angle of inclination of drying kiln 3 is to get final product about 30 degree; The discharge end of drying kiln 3 connects the hot-blast outlet of combustion chamber 1, and the feed end of drying kiln 3 connects smoke evacuation chimney 5.Coal gas burner 2 is by original horizontal distribution, and changing into is arranged above and below is distributed in the both sides, combustion chamber, and each side is two, can make burning more abundant like this, and heat is concentrated, both energy savings the energy, also guaranteed drying efficiency.
Among the figure, double-lined arrow is the materials flow direction, and the single line arrow is an airflow direction.
Use the utility model that the pellet raw material of steel plant is carried out drying, pellet raw material enters drying kiln 3 backs because the free landing of effect of gravity by charging shuttle groove 6, discharge from discharging shuttle groove 4 then, because the discharge end of drying kiln 3 is connected with the hot-blast outlet of combustion chamber 1, the reverse exchange of pellet materials flow in hot-air flow and the drying kiln 3 is taken away and 5 discharges of drying kiln 1 smoke evacuation chimney the moisture of pellet raw material by hot blast.
The utility model is obviously wanted fully than downflow type owing to adopt reverse-flow heat exchange method, and therefore the heat utilization efficiency height can reduce burnup, saves cost.And changed traditional raw material drying mode, and feed stream is to opposite with the hot blast flow direction, and hot-blast outlet is installed in the head discharge end, because it is from the discharging opening height, and raw material moisture is few after drying, so the putty phenomenon is eliminated.And combustion chamber 1 can reduce the thermal stress that the combustion chamber is stood like this by the original cube shaped cylindrical shape that changes under hot conditions, prolongs the service life of combustion chamber.
Claims (3)
1, reverse-flow heat exchange drying device comprises drying kiln (3), it is characterized in that described drying kiln (3) is obliquely installed, and its upper/lower terminal is provided with charging shuttle groove (6) and discharging shuttle groove (4) respectively; The discharge end of drying kiln (3) connects the hot-blast outlet of combustion chamber (1), and the feed end of drying kiln (3) connects smoke evacuation chimney (5); Combustion chamber (1) sidewall is provided with coal gas burner (2).
2, reverse-flow heat exchange drying device according to claim 1 is characterized in that described combustion chamber (4) is cylinder-like structure.
3, reverse-flow heat exchange drying device according to claim 1, it is characterized in that described coal gas burner (2) for upper and lower arranged distribution in the both sides of combustion chamber, each side is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200981356U CN201191128Y (en) | 2008-04-24 | 2008-04-24 | Reversed flow type heat-exchanging drying arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200981356U CN201191128Y (en) | 2008-04-24 | 2008-04-24 | Reversed flow type heat-exchanging drying arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201191128Y true CN201191128Y (en) | 2009-02-04 |
Family
ID=40335289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200981356U Expired - Fee Related CN201191128Y (en) | 2008-04-24 | 2008-04-24 | Reversed flow type heat-exchanging drying arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201191128Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175073A (en) * | 2011-02-24 | 2011-09-07 | 中冶北方工程技术有限公司 | Iron ore concentrate drying device and method for pelletizing |
| CN110802202A (en) * | 2019-09-23 | 2020-02-18 | 安徽省含山县华平铸造厂（普通合伙） | Casting sand rapid drying equipment for gray iron casting |
-
2008
- 2008-04-24 CN CNU2008200981356U patent/CN201191128Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175073A (en) * | 2011-02-24 | 2011-09-07 | 中冶北方工程技术有限公司 | Iron ore concentrate drying device and method for pelletizing |
| CN110802202A (en) * | 2019-09-23 | 2020-02-18 | 安徽省含山县华平铸造厂（普通合伙） | Casting sand rapid drying equipment for gray iron casting |
| CN110802202B (en) * | 2019-09-23 | 2020-12-18 | 安徽省含山县华平铸造厂（普通合伙） | Casting sand rapid drying equipment for gray iron casting |
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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: 20090220 Address after: Li Zilin, Dadukou District of Chongqing zip code: 400081 Patentee after: Chongqing Iron and Steel Co., Ltd. Address before: Three Da Yan village, Dadukou District of Chongqing zip code: 400080 Patentee before: Chongqing Iron & Steel (Group) Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: CHONGQING STEEL CO., LTD. Free format text: FORMER OWNER: CHONGQING STEEL(GROUP)CO., LTD. Effective date: 20090220 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090204 Termination date: 20130424 |