CN209166132U - A kind of sintering flue gas wind-mixer - Google Patents
A kind of sintering flue gas wind-mixer Download PDFInfo
- Publication number
- CN209166132U CN209166132U CN201822011848.0U CN201822011848U CN209166132U CN 209166132 U CN209166132 U CN 209166132U CN 201822011848 U CN201822011848 U CN 201822011848U CN 209166132 U CN209166132 U CN 209166132U
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- Prior art keywords
- flue gas
- straight tube
- sintering
- spiral case
- entrance
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Abstract
The utility model discloses a kind of sintering flue gas wind-mixer, including straight tube and spiral case, the both ends of straight tube are respectively equipped with entrance and exit, are respectively equipped with inlet flange, outlet(discharge) flange on the entrance, the outlet；The outer end of spiral case is equipped with cold air flange, and axis is vertical with the axis of the straight tube, and inner end is communicated with the inside of the straight tube.The utility model, spiral case form Whirl deposite tank, Whirl deposite tank and the vertically-supplying air cross-mixing from sintering machine for accessing ring cold machine flue gas, ring cold machine flue gas in spiral case, and mixed wind effect is more preferable, and oxygen content distribution is more uniform, is conducive to control sintering quality；Whirl deposite tank can drive movement in the cloth gas hood of sintering circulating flue gas to the lower part, save energy consumption；It is not limited by duty parameters such as exhaust gas volumn size, ingredients, it is versatile, it is suitble to a variety of workplaces；Structure is simple, easy to process.
Description
Technical field
The utility model relates to fume treatment technical fields, and in particular to a kind of sintering flue gas wind-mixer.
Background technique
In recent years, with the electric power, steel, coloured, building materials, petroleum for accounting for national industrial energy consumption and sulfur dioxide nearly 70%
The development of the big highly energy-consuming trade of processing, chemical industry etc. six, energy-saving and emission-reduction have become the emphasis of current macroscopic regulation.Sulfur dioxide is made
For one of major pollutants, emission reduction becomes the most important thing of our environmental protection works.The flue gas emission of sintering system exists
The features such as exhaust gas volumn is big, sulfur dioxide emissioning concentration is low and fluctuation range is wide, sulfur dioxide (SO2) emissions total amount is big.
Sintering machine is suitable for the sintering work of large-scale iron and steel industry sintering plant, it is that main body during down draft sintering is set
It is standby, can be by different components, varigrained concentrate powder, rich ore powder sintering is blocking, and partially remove sulphur contained in ore, phosphorus etc.
Objectionable impurities.Sintering machine is divided into several specifications of different length different in width by sintering area, and user is according to its yield or place
Situation is selected, and sintering area is bigger, and yield is higher.
Sintering flue gas outlet is mainly divided into two major classes: first is that not being recycled, subsequent dedusting, desulfurizer are directly connect,
In addition one kind is to be recycled.It is wherein recycled and is divided into interior circulation technology and external circulation process again, present common application is
Interior circulation technology.Interior circulation technology takes wind in wind box branch pipe, optionally chooses high temperature, oxygen-enriched bellows exhaust gas is recycled
It uses, flexible operation, can avoid circulating current short circuit, repetitive cycling, after setting up initial wind oxygen balance relationship, production
I.e. in stablizing, more compared to normal sintering process change amount, fixed investment is high, is more suitable for grassroot project.External circulation process exists
Main exhauster rear pass takes wind, though not can avoid influence of the regeneration efficity to sintering production after first flue gas circulation, only needs
Match 1 small-power air-introduced machine outside, is not necessarily to more change compared to normal sintering, is more suitable for transformation project.No matter interior circulation
Technique or external circulation process, are required to using wind-mixer.
The flue gas of the flue gas of ring cold machine and sintering machine is mixed using wind-mixer, but existing wind-mixer uses straight barrel type,
The ring cold machine flue gas of addition mixes unevenness with sintering circulating flue gas, and the oxygen content being unable to accurately control in sintering process causes to burn
The problem of cross section sintering velocity is inconsistent during knot, influences sintering quality.
In view of this, being badly in need of improving the structure of existing wind-mixer, to facilitate control oxygen content, sintering effect is improved
Fruit.
Utility model content
Technical problem to be solved in the utility model is that the structure of existing wind-mixer is not poor, easily-controllable in the presence of mixed wind effect
Oxygen content processed leads to the problem of sintering effect difference.
In order to solve the above-mentioned technical problem, technical solution used by the utility model is to provide a kind of mixed wind of sintering flue gas
Device, comprising:
Straight tube, both ends are respectively equipped with entrance and exit, and inlet flange, outlet are respectively equipped on the entrance, the outlet
Flange；
Spiral case, outer end are equipped with cold air flange, and axis is vertical with the axis of the straight tube, the inside phase of inner end and the straight tube
It is logical.
In another preferred embodiment, the spiral case includes straight sections and bent portion, and the radius of the bent portion is big
In the radius of the straight tube.
In another preferred embodiment, the radius of the bent portion is 1.2~2 times of the radius of the straight tube.
In another preferred embodiment, the straight tube is rectangular tube.
In another preferred embodiment, the entrance is equipped with necking part, and the inlet flange is arranged in necking part
On.
In another preferred embodiment, the straight tube is arranged in close to the side of the entrance in the spiral case.
Compared with prior art, the utility model has the advantage that
(1) spiral case is for accessing ring cold machine flue gas, and ring cold machine flue gas forms Whirl deposite tank in spiral case, Whirl deposite tank with from burning
The vertically-supplying air cross-mixing of knot machine, mixed wind effect is more preferable, and oxygen content distribution is more uniform, is conducive to control sintering quality；
(2) ring cold machine flue gas forms Whirl deposite tank in spiral case, and Whirl deposite tank can drive the gas distribution of sintering circulating flue gas to the lower part
Movement in cover, saves energy consumption；
(3) it is not limited by duty parameters such as exhaust gas volumn size, ingredients, it is versatile, it is suitble to a variety of workplaces；
(4) structure is simple, easy to process.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the top view of Fig. 1.
Specific embodiment
The utility model provides a kind of sintering flue gas wind-mixer, and ring cold machine flue gas forms Whirl deposite tank, eddy flow in spiral case
Wind and the vertically-supplying air cross-mixing from sintering machine, mixed wind effect is more preferable, and oxygen content distribution is more uniform, is conducive to control sintering matter
Amount.The utility model is described in detail with specific embodiment with reference to the accompanying drawings of the specification.
As depicted in figs. 1 and 2, a kind of sintering flue gas wind-mixer provided by the utility model, including straight tube 2 and spiral case 4.Directly
2 both ends of cylinder are respectively equipped with entrance and exit, and inlet flange 6, outlet(discharge) flange 1 are respectively equipped on entrance, outlet.4 outer end of spiral case is set
There is cold air flange 3, axis is vertical with the axis of straight tube 2, and inner end is communicated with the inside of straight tube 2.
Inlet flange 6 is used to be connected and fixed with the flue of sintering machine, and outlet(discharge) flange 1 is used for and subsequent cloth fan housing
Pipeline is connected and fixed.The axis of spiral case 4 is vertical with the axis of straight tube 2, therefore the ring cold machine flue gas entered and sintering machine cold air
Trend is vertical, and the air-flow of spiral is formed under airflow function.
Spiral case 4 includes straight sections 41 and bent portion 42, and the radius of bent portion 42 is greater than the radius of straight tube 2.Straight sections 41 make
It obtains air to enter in the state of non-resistance, and obtains certain speed.Bent portion 42 makes the straight line side of air change script
To being entered in straight tube 2 with arc-shaped airflow direction.The radius of bent portion 42 is larger, into after straight tube 2, due to the half of eddy flow
Diameter reduces, and air velocity can be accelerated, so that the flue gas of sintering machine be driven quickly to mix and be threadingly advanced.
The radius of bent portion 42 is 1.2~2 times of the radius of straight tube 2, this ratio makes the air of spiral case 4 and straight tube 2
Flow keeps proper ratio, facilitates control and adjustment.
Straight tube is rectangular tube, and for round tube, the air-flow of ring cold machine has regular inward flange, is advantageously formed
The spiral air flow of rule, while rectangular tube is conducive to install.
Entrance is equipped with necking part 5, and inlet flange 6 is arranged on necking part 5, the flue gas that necking part 5 enters sintering machine
Aggregation, then mixed with the flue gas in ring cold machine.
Straight tube 2 is arranged in close to the side of entrance, so that the flue gas of ring cold machine and the flue gas of sintering machine mix as early as possible in spiral case 4
It closes, there is good mixed effect after straight tube 2.
Compared with prior art, the utility model has the following advantages that.
(1) spiral case is for accessing ring cold machine flue gas, and ring cold machine flue gas forms Whirl deposite tank in spiral case, Whirl deposite tank with from burning
The vertically-supplying air cross-mixing of knot machine, mixed wind effect is more preferable, and oxygen content distribution is more uniform, is conducive to control sintering quality；
(2) ring cold machine flue gas forms Whirl deposite tank in spiral case, and Whirl deposite tank can drive the gas distribution of sintering circulating flue gas to the lower part
Movement in cover, saves energy consumption；
(3) it is not limited by duty parameters such as exhaust gas volumn size, ingredients, it is versatile, it is suitble to a variety of workplaces；
(4) structure is simple, easy to process.
The utility model is not limited to above-mentioned preferred forms, and anyone should learn that the enlightenments in the utility model
Under the structure change made, it is all that there is same or similar technical solution with the utility model, each fall within the utility model
Within protection scope.
Claims (6)
1. a kind of sintering flue gas wind-mixer characterized by comprising
Straight tube, both ends are respectively equipped with entrance and exit, are respectively equipped with inlet flange, outlet(discharge) flange on the entrance, the outlet；
Spiral case, outer end are equipped with cold air flange, and axis is vertical with the axis of the straight tube, and inner end is communicated with the inside of the straight tube.
2. sintering flue gas wind-mixer according to claim 1, which is characterized in that the spiral case includes straight sections and bend pipe
Portion, the radius of the bent portion are greater than the radius of the straight tube.
3. sintering flue gas wind-mixer according to claim 2, which is characterized in that the radius of the bent portion is the straight tube
1.2~2 times of radius.
4. sintering flue gas wind-mixer according to claim 2, which is characterized in that the straight tube is rectangular tube.
5. sintering flue gas wind-mixer according to claim 1, which is characterized in that the entrance is equipped with necking part, described
Inlet flange is arranged on necking part.
6. sintering flue gas wind-mixer according to claim 1, which is characterized in that the spiral case setting is close in the straight tube
The side of the entrance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822011848.0U CN209166132U (en) | 2018-12-03 | 2018-12-03 | A kind of sintering flue gas wind-mixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822011848.0U CN209166132U (en) | 2018-12-03 | 2018-12-03 | A kind of sintering flue gas wind-mixer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209166132U true CN209166132U (en) | 2019-07-26 |
Family
ID=67341637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822011848.0U Expired - Fee Related CN209166132U (en) | 2018-12-03 | 2018-12-03 | A kind of sintering flue gas wind-mixer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209166132U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111692888A (en) * | 2020-05-08 | 2020-09-22 | 北新集团建材股份有限公司 | Flue gas air mixing device |
| 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 |
-
2018
- 2018-12-03 CN CN201822011848.0U patent/CN209166132U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111692888A (en) * | 2020-05-08 | 2020-09-22 | 北新集团建材股份有限公司 | Flue gas air mixing device |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190726 Termination date: 20191203 |