CN203513707U - Oxygen-enriched air mixing device - Google Patents
Oxygen-enriched air mixing device Download PDFInfo
- Publication number
- CN203513707U CN203513707U CN201320571371.6U CN201320571371U CN203513707U CN 203513707 U CN203513707 U CN 203513707U CN 201320571371 U CN201320571371 U CN 201320571371U CN 203513707 U CN203513707 U CN 203513707U
- Authority
- CN
- China
- Prior art keywords
- oxygen
- air
- pipeline
- mixing device
- spray nozzles
- 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
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 92
- 239000001301 oxygen Substances 0.000 title claims abstract description 92
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 85
- 239000007921 spray Substances 0.000 claims abstract description 11
- 239000000571 coke Substances 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000005507 spraying Methods 0.000 abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Nozzles (AREA)
Abstract
The utility model relates to an oxygen-enriched air mixing device. The oxygen-enriched air mixing device comprises an oxygen pipeline and an air pipeline, wherein the air pipeline passes through the oxygen pipeline, the oxygen pipeline is communicated with the air pipeline through oxygen spray nozzles, an oxygen inlet pipe is arranged on the outer surface of the oxygen pipeline, and an oxygen concentration detector is arranged at the outlet end of the air pipeline; the number of the oxygen spray nozzles is four or more than four, the oxygen spray nozzles are uniformly and symmetrically distributed, and the oxygen spraying directions of the oxygen spray nozzles are opposite to the air spraying direction of the air pipeline; the oxygen spray nozzles are of L-shaped structures. Compared with the prior art, the oxygen-enriched air mixing device has the beneficial effects that the oxygen-enriched air mixing device has the characteristics of low cost, simple structure, science and practicability, as the flow directions of air and oxygen are changed, the flow state of oxygen-enriched air is changed, and laminar flow is changed into turbulent flow, so that oxygen and air are fully mixed with each other, the degree of mixing of the oxygen and the air is effectively increased, the oxygen enrichment rate of a blast furnace is increased, the efficiency of the blast furnace is improved, and the energy consumption and the coke ratio of the blast furnace are reduced.
Description
Technical field
The utility model relates to rich-oxygen of blast furnace technique for blast field, particularly a kind of oxygen-rich air mixing device.
Background technology
At present, the oxygen enrichment percentage of blast furnace and hotblast stove is designed to 8%, in fact, while increasing oxygen enrichment percentage, the life-span of blast furnace can shorten greatly, and what refractory materials also can be in various degree is impaired, oxygen enrichment percentage can only reach 2-3%, had a strong impact on the efficiency of blast furnace, affected output and the coke ratio of blast furnace, analyzing reason one is that blast furnace fireproof material quality is weak, the 2nd, rich-oxygen of blast furnace air mixed degree is low, cause partial oxygen excessive concentration, temperature of combustion is too high, and blast furnace is caused to damage.
Summary of the invention
The purpose of this utility model is to provide and a kind ofly can improves rich-oxygen of blast furnace rate, can reduce again the oxygen-rich air mixing device of blast furnace energy consumption.
For achieving the above object, the utility model is realized by the following technical solutions:
A kind of oxygen-rich air mixing device, comprise oxygen channel and air line, described air line is through oxygen channel, and oxygen channel is connected with air line by oxygen jet, oxygen channel outside surface is provided with oxygen inlet tube, and air line exit end is provided with oxygen concentration detecting instrument.
Described oxygen jet has four or more, and distributes symmetrically, and the air that the oxygen of oxygen jet sprays into direction and air line sprays into opposite direction.
Gaseous tension in described oxygen jet is greater than the gaseous tension 0.8～1.2KPa in air line.
Described oxygen jet is L shaped structure.
Compared with prior art, the beneficial effects of the utility model are:
A kind of oxygen-rich air mixing device, have the advantages that cost is low, simple in structure, science is practical, owing to changing the flow direction of air and oxygen, reach the fluidised form that changes oxygen-rich air, from laminar flow, become turbulent flow, oxygen and air are mixed fully, effectively increased the mixedness of oxygen and air, the oxygen enrichment percentage and the efficiency that have improved blast furnace, reduced blast furnace energy consumption and coke ratio.
Accompanying drawing explanation
Fig. 1 is structure iron of the present utility model.
1-oxygen channel, 2-air line, 3-oxygen jet, 4-oxygen inlet tube, 5-oxygen concentration detecting instrument
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is further illustrated:
As shown in Figure 1, a kind of oxygen-rich air mixing device of the utility model, comprise oxygen channel 1 and air line 2, described air line 2 is through oxygen channel 1, oxygen channel 1 is connected with air line 2 by oxygen jet 3, oxygen channel 1 outside surface is provided with oxygen inlet tube 4, and air line 2 exit end are provided with oxygen concentration detecting instrument 5; Described oxygen jet 3 has four or more, and distributes symmetrically, and the air that the oxygen of oxygen jet 3 sprays into direction and air line 2 sprays into opposite direction; Gaseous tension in described oxygen jet 3 is greater than the gaseous tension 0.8～1.2Kpa in air line 2; Described oxygen jet 3 is L shaped structure.
While using the utility model, first through the combined amount of air and oxygen, calculate quantity and the caliber of oxygen jet 3, then oxygen enters in oxygen channel 1 by oxygen inlet tube 4, then by oxygen jet 3, be injected in air line 2 and air mixed, by oxygen concentration detecting instrument 5, detect data simultaneously and regulate and control amount of oxygen, whole mixing device adopts stainless steel.
Above described in be only ultimate principle of the present utility model, not the utility model is imposed any restrictions, everyly according to the utility model, it is carried out to equivalent variations and modification, all within the category of the art of this patent protection scheme.
Claims (4)
1. an oxygen-rich air mixing device, it is characterized in that, comprise oxygen channel and air line, described air line is through oxygen channel, oxygen channel is connected with air line by oxygen jet, oxygen channel outside surface is provided with oxygen inlet tube, and air line exit end is provided with oxygen concentration detecting instrument.
2. a kind of oxygen-rich air mixing device according to claim 1, is characterized in that, described oxygen jet has four or more, and distributes symmetrically, and the air that the oxygen of oxygen jet sprays into direction and air line sprays into opposite direction.
3. a kind of oxygen-rich air mixing device according to claim 1, is characterized in that, the gaseous tension in described oxygen jet is greater than the gaseous tension 0.8～1.2KPa in air line.
4. a kind of oxygen-rich air mixing device according to claim 1 and 2, is characterized in that, described oxygen jet is L shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320571371.6U CN203513707U (en) | 2013-09-13 | 2013-09-13 | Oxygen-enriched air mixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320571371.6U CN203513707U (en) | 2013-09-13 | 2013-09-13 | Oxygen-enriched air mixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203513707U true CN203513707U (en) | 2014-04-02 |
Family
ID=50372664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320571371.6U Expired - Fee Related CN203513707U (en) | 2013-09-13 | 2013-09-13 | Oxygen-enriched air mixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203513707U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110694A (en) * | 2014-07-10 | 2014-10-22 | 中国神华能源股份有限公司 | Smoke conveying device and method for injecting oxygen-enriched gas into flue |
-
2013
- 2013-09-13 CN CN201320571371.6U patent/CN203513707U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110694A (en) * | 2014-07-10 | 2014-10-22 | 中国神华能源股份有限公司 | Smoke conveying device and method for injecting oxygen-enriched gas into flue |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |