CN203904380U - Rotational flow injection air mixing device - Google Patents
Rotational flow injection air mixing device Download PDFInfo
- Publication number
- CN203904380U CN203904380U CN201420269887.XU CN201420269887U CN203904380U CN 203904380 U CN203904380 U CN 203904380U CN 201420269887 U CN201420269887 U CN 201420269887U CN 203904380 U CN203904380 U CN 203904380U
- Authority
- CN
- China
- Prior art keywords
- air mixing
- mixed
- pipe
- shell
- outer casing
- 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 - Lifetime
Links
- 238000002156 mixing Methods 0.000 title claims abstract description 59
- 238000004401 flow injection analysis Methods 0.000 title abstract 2
- 239000007921 spray Substances 0.000 claims abstract description 35
- 239000011819 refractory material Substances 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 238000010079 rubber tapping Methods 0.000 claims description 3
- 239000011449 brick Substances 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 21
- 230000036651 mood Effects 0.000 description 3
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
Landscapes
- Nozzles (AREA)
Abstract
The utility model discloses a rotational flow injection air mixing device, and belongs to the technical field of hot-blast stoves. The device comprises an outer casing, outer casing flanges, an air mixing ring-shaped pipe, air mixing spray holes, refractory materials, an air mixing pipe and an air mixing pipe flange, wherein the outer casing flanges are welded on the two sides of the outer casing; one end of the air mixing pipe is welded to the air mixing pipe flange, and the other end of the air mixing pipe is welded to the outer side of the air mixing ring-shaped pipe and is vertical to the air mixing ring-shaped pipe; the air mixing ring-shaped pipe is welded onto the outer side of the outer casing; an air mixing ring-shaped passage is formed between the air mixing ring-shaped pipe and the outer casing; holes are formed in the outer casing covering the air mixing ring-shaped pipe for communicating the inside of the outer casing and the air mixing ring-shaped passage; the air mixing spray holes are welded at the holes in the inner side of the outer casing. According to the utility model, the air mixing spray holes and central airflow from certain angles in the axial and radial directions; air mixing airflow is sprayed into the device in the rotation direction along the multiple spray holes to form rotational flow to be fully mixed with the central airflow, so that the uniform mixing effect can be reinforced, the length of pipe pass required by uniform mixing is shortened, and the problem of poor uniformity of temperature distribution caused by airflow collision backward rotation is avoided; the device has the advantages that the structure is simple, the air mixing efficiency is high, and the resistance is small.
Description
Technical field
The utility model belongs to hotblast stove technical field, and particularly a kind of swirl injection air mixing device, is applicable to mixing fast between two kinds of differing temps gases.
Background technology
In industrial circle, for a kind of temperature of gas or composition are adjusted, often a kind of gas need to be blended in another kind of gas, wind temperature adjustment as mixed in the hot blast of blast funnace hot blast stove or rotary hearth furnace flue gas system convert cold wind temperature-fall period.Existing converting in wind mode, the overwhelming majority is to adopt mixed vane pipe to add the form of arm, on high-temperature gas supervisor, arranges and converts vane pipe, between endless tube and supervisor, by arm UNICOM, arm diameter is large and vertical with house steward.This wind mode of converting is because arm stream thigh is large, number is few, after house steward's Central Collisions, form recirculating zone, mixed gas flow temperature distributes and has high-temperature zone, lack of homogeneity, and consistent with the central gas stream flow direction owing to being blended into air-flow, so in larger distance, high-temperature zone exists always, in order to reach good Blending Efficiency of Blending, just must strengthen the pipeline trip of the rear air-flow of mixing, therefore, occupation area of equipment and investment have been increased; In addition, because arm air-flow is vertical with central gas stream, so drag losses is larger.
CN91206658.X publication " Multi-flow wind mixer ", by spout and the setting in a certain angle of height of center warm air, can play and reduce the object that air-flow resistance is damaged, but still have much room for improvement on the Blending Efficiency of Blending of air-flow.
Summary of the invention
The purpose of this utility model is to provide a kind of swirl injection air mixing device.Realized mixing fast of air-flow
The utility model comprises shell 1, shell flange 5, mixed vane pipe 2, mixed wind spray orifice 3, refractory materials 4, mixing wind tube 7 and mixing wind tube flange 6; Wherein, shell flange 5 is welded on shell 1 both sides, mixing wind tube 7 one end welding mixing wind tube flanges 6, the other end is welded on mixed vane pipe 2 outsides, and vertical with mixed vane pipe 2, mixed vane pipe 2 is welded on shell 1 outside, between mixed vane pipe 2 and shell 1, form mixed vane road, perforate on the shell 1 covering at mixed vane pipe 2, inner and the mixed vane road UNICOM by shell 1, and mix wind spray orifice 3 in the tapping welding of shell 1 inner side, according to gas flow temperature requirement, can refractory materials 4 be installed in shell 1 inner side, thickness is highly identical with mixed wind spray orifice 3.Mixed wind spray orifice 3 and central gas stream are at axial (α angle) and radially (β angle) direction is all angled, and its angular range is respectively <90 ° of 0< α, 0< β <90 °.
Mixed wind spray orifice row is 1～20 row, and single spray orifice number is 1～100.
Mixed wind spray orifice can adopt circle, the form such as square, trapezoidal.
Refractory materials can adopt and lay bricks, spray material or mould material.
The mixed wind spray orifice of the utility model and central gas stream are axial and radial direction is all angled, mixed general mood stream sprays into formation eddy flow along a plurality of spray orifice rotation directions, fully mix with central gas stream, can strengthen Blending Efficiency of Blending, shorten and mix the tube side length needing, meanwhile, the poor problem of temperature distribution evenness of avoiding airflow collision convolution to cause.
The utility model adopts the mode of the mixed wind of swirl injection, and mixed gas temperature is evenly distributed, and has improved Blending Efficiency of Blending, has realized fast and having mixed, and has shortened and has mixed the tube side length needing, and has the features such as simple in structure, mixed wind efficiency is high, resistance is little simultaneously.
Accompanying drawing explanation
Fig. 1 is the structure iron of swirl injection air mixing device.
Fig. 2 is that the A of Fig. 1 is to view.
In figure, shell 1, mixed vane pipe 2, mixed wind spray orifice 3, refractory materials 4, shell flange 5, mixing wind tube flange 6, mixing wind tube 7; α is the axial angle of mixed wind spray orifice and central gas stream, and β is the radially angle of mixed wind spray orifice and central gas stream.
Embodiment
Referring to Fig. 1, the utility model comprises shell 1, shell flange 5, mixed vane pipe 2, mixed wind spray orifice 3, refractory materials 4, mixing wind tube 7 and mixing wind tube flange 6; Wherein, shell flange 5 is welded on shell 1 both sides, mixing wind tube 7 one end welding mixing wind tube flanges 6, the other end is welded on mixed vane pipe 2 outsides, and vertical with mixed vane pipe 2, mixed vane pipe 2 is welded on shell 1 outside, between mixed vane pipe 2 and shell 1, form mixed vane road, perforate on the shell 1 covering at mixed vane pipe 2, inner and the mixed vane road UNICOM by shell 1, and mix wind spray orifice 3 in the tapping welding of shell 1 inner side, according to gas flow temperature requirement, can refractory materials 4 be installed in shell 1 inner side, thickness is highly identical with mixed wind spray orifice 3.Mixed wind spray orifice 3 is with central gas stream in axial angle α=30 °, and radially angle β=5 °, mix wind spray orifice 3 totally 4 rows, and every row's spray orifice number is 10, and mixed wind spray orifice is rectangle, and size is 100X50mm.
During air mixing device work, mixed general mood stream is under the promotion of pressure, by mixing wind tube, enter mixed vane pipe, then along a plurality of spray orifice rotation directions, spray into central gas stream and form eddy flow, because mixed general mood stream is higher than central gas stream flow velocity, central gas stream is formed to abundant cutting mixing, and mixed airflow flows out along central gas stream direction.
Claims (5)
1. a swirl injection air mixing device, it is characterized in that, comprise shell (1), shell flange (5), mixed vane pipe (2), mixed wind spray orifice (3), refractory materials (4), mixing wind tube (7) and mixing wind tube flange (6); Wherein, shell flange (5) is welded on shell (1) both sides, mixing wind tube (7) one end welding mixing wind tube flange (6), the other end is welded on mixed vane pipe (2) outside, and vertical with mixed vane pipe (2), mixed vane pipe (2) is welded on shell (1) outside, between mixed vane pipe (2) and shell (1), form mixed vane road, the upper perforate of shell (1) covering at mixed vane pipe (2), inner and the mixed vane road UNICOM by shell (1), and mix wind spray orifice (3) in the tapping welding of shell (1) inner side;
Mixed wind spray orifice (3) axial and radially all angled, is respectively α angle and β angle with central gas stream, and its angular range is respectively <90 ° of 0< α, 0< β <90 °.
2. air mixing device according to claim 1, is characterized in that, in shell (1) inner side, refractory materials (4) is installed, and thickness is highly identical with mixed wind spray orifice (3).
3. air mixing device according to claim 1, is characterized in that, mixed wind spray orifice row is 1～20 row, and single spray orifice number is 1～100.
4. air mixing device according to claim 1, is characterized in that, mixed wind spray orifice adopts circular, square or trapezoidal.
5. air mixing device according to claim 1, is characterized in that, refractory materials adopts and to lay bricks, spray material or mould material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420269887.XU CN203904380U (en) | 2014-05-23 | 2014-05-23 | Rotational flow injection air mixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420269887.XU CN203904380U (en) | 2014-05-23 | 2014-05-23 | Rotational flow injection air mixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203904380U true CN203904380U (en) | 2014-10-29 |
Family
ID=51778671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420269887.XU Expired - Lifetime CN203904380U (en) | 2014-05-23 | 2014-05-23 | Rotational flow injection air mixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203904380U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105115305A (en) * | 2015-08-24 | 2015-12-02 | 济钢集团国际工程技术有限公司 | Efficient air mixing device for sintering flue gas circulation |
| CN109603334A (en) * | 2019-01-16 | 2019-04-12 | 广西玉柴机器股份有限公司 | A kind of high-temperature smoke dust removal method and device |
| CN113154410A (en) * | 2021-03-19 | 2021-07-23 | 中国辐射防护研究院 | Vehicle-mounted low-emission combustible waste incineration device and process |
| CN113237347A (en) * | 2021-04-19 | 2021-08-10 | 北京首钢国际工程技术有限公司 | Sintering flue gas circulating air mixing method |
| CN114395654A (en) * | 2022-01-19 | 2022-04-26 | 东北大学 | Blast furnace uniform air supply equipment with external flow control area and method |
-
2014
- 2014-05-23 CN CN201420269887.XU patent/CN203904380U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105115305A (en) * | 2015-08-24 | 2015-12-02 | 济钢集团国际工程技术有限公司 | Efficient air mixing device for sintering flue gas circulation |
| CN109603334A (en) * | 2019-01-16 | 2019-04-12 | 广西玉柴机器股份有限公司 | A kind of high-temperature smoke dust removal method and device |
| CN113154410A (en) * | 2021-03-19 | 2021-07-23 | 中国辐射防护研究院 | Vehicle-mounted low-emission combustible waste incineration device and process |
| CN113237347A (en) * | 2021-04-19 | 2021-08-10 | 北京首钢国际工程技术有限公司 | Sintering flue gas circulating air mixing method |
| CN113237347B (en) * | 2021-04-19 | 2022-12-13 | 北京首钢国际工程技术有限公司 | Sintering flue gas circulating air mixing method |
| CN114395654A (en) * | 2022-01-19 | 2022-04-26 | 东北大学 | Blast furnace uniform air supply equipment with external flow control area and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203904380U (en) | Rotational flow injection air mixing device | |
| EP3666372B1 (en) | Flue gas mixing device and method | |
| CN104263967B (en) | A kind of self-heating Flash Smelting technique and device of processing complex materials | |
| CN106390708B (en) | A kind of petal ammonia-gas spraying device of coke oven flue gas denitration | |
| CN204141575U (en) | Be applicable to the coal burner nozzle being with minor air cell's cement decomposing furnace fuel-staged combustion | |
| CN102564103B (en) | Novel exhaust system | |
| CN106139945A (en) | There is the flue gas mixing arrangement of low choked flow | |
| CN207378815U (en) | A kind of linear low nitrogen gas burner | |
| CN105688697A (en) | Gas mixing method | |
| CN105042624A (en) | Flue-gas and air system and flow guide device, of flue-gas and air system, at cold secondary air inlet of air preheater | |
| CN203425725U (en) | Ammonia gas and air mixer in ammonia-spraying denitration system of thermal power plant | |
| CN201386111Y (en) | Pipeline blast temperature adjusting mixed air structure | |
| CN203731484U (en) | Low-cyclone nozzle of combustor | |
| CN204962745U (en) | Burner | |
| CN204987897U (en) | Low -grade tail gas waste heat utilization feed bin of small -scale | |
| CN207741076U (en) | A kind of Flat flame low NO | |
| CN205537154U (en) | Gas mixer | |
| CN201864740U (en) | Mixing device for gas pipeline delivery | |
| CN104566550A (en) | Gas dividing device for air blower gas stove | |
| CN211886295U (en) | Gas mixer | |
| CN202792024U (en) | Hot blast furnace and combustor thereof | |
| CN203629297U (en) | Decomposing furnace structure for low-nitrogen oxide emission | |
| CN210786881U (en) | Air exhaust device for polymer denitration system | |
| CN203333690U (en) | Hot air diversion drying oven device | |
| CN208886816U (en) | A kind of mixed wind processing system of flue gas |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141029 |