CN207741587U - A kind of device of processing vanadium titanium reduction rotary kiln exhaust gas - Google Patents
A kind of device of processing vanadium titanium reduction rotary kiln exhaust gas Download PDFInfo
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- CN207741587U CN207741587U CN201721808980.3U CN201721808980U CN207741587U CN 207741587 U CN207741587 U CN 207741587U CN 201721808980 U CN201721808980 U CN 201721808980U CN 207741587 U CN207741587 U CN 207741587U
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Abstract
A kind of device of processing vanadium titanium reduction rotary kiln exhaust gas of the utility model, device includes high-temp waste gas cooling device, First air induction apparatus, ignition smooth combustion regenerative apparatus, overfire air device, combustion chamber, throat mixed zone, in the circumferentially disposed wall in the combustion chamber of overfire air device；The pipe heat exchanger of the wind inlet connection high-temp waste gas cooling device of First air induction apparatus, the heat primary air pipeline of the tube side outlet connection First air induction apparatus of the pipe heat exchanger of high-temp waste gas cooling device, hot air spout of First air induction apparatus is located at the axis of First air induction apparatus, face throat mixed zone, the ignition smooth combustion regenerative apparatus is arranged in throat mixed zone, leads to combustion chamber, and the throat mixed zone is to shrink diffusion structure.Exhaust-gas treatment is the safe exhaust gas without combustible for technological requirement and exhaust gas constituents by the utility model, makes the exhaust gas after burning that can carry out heat recovery by heat recovery equipments such as waste heat boilers, while ensuring qualified discharge.
Description
Technical field
The utility model is related to vanadium titanium prereduction rotary kiln exhaust-gas treatment fields more particularly to a kind of processing vanadium titanium to revert back
The device of rotary kiln exhaust gas.
Background technology
Pre-reduction treatment can be carried out to schreyerite by rotary kiln device in a kind of vanadium titanium production process.Rotary kiln
Interior is positive pressure reducing atmosphere, is free of O2.Rotary kiln air outlet requires control micro-positive pressure (10~30pa).After prereduction reaction
It will produce containing a small amount of H2, CO (combustible content≤15%) and higher dustiness (about 20~30g/Nm3) high temperature (600~
700 DEG C) combustible exhaust gas.Contain a large amount of carbon dust (C) in ash content, this portion can just discharge after having to pass through processing.By
Very low in combustible content, high temperature air and the mixed temperature of cold air are about 350 DEG C, and due to the shadow of noncombustible matter
It rings, so such exhaust gas is not easy to stablize completely burned.
Utility model content
The purpose of this utility model is to provide a kind of device of processing vanadium titanium reduction rotary kiln exhaust gas, for technological requirement and
Exhaust-gas treatment is the safe exhaust gas without combustible by exhaust gas constituents, makes the exhaust gas after burning that can be set by recuperations of heat such as waste heat boilers
It is standby to carry out heat recovery, while ensuring qualified discharge.
In order to achieve the above object, the utility model is realized using following technical scheme：
It is a kind of processing vanadium titanium reduction rotary kiln exhaust gas device, including high-temp waste gas cooling device, First air induction apparatus,
Ignition smooth combustion regenerative apparatus, overfire air device, combustion chamber, throat mixed zone, the exhaust steam passage of the high-temp waste gas cooling device
It is connected with the exhaust steam passage of First air induction apparatus, the exhaust steam passage of First air induction apparatus passes through throat's mixed zone connection combustion
Room is burnt, in the circumferentially disposed wall in the combustion chamber of the overfire air device；Wind inlet of the First air induction apparatus connects
The pipe heat exchanger of high-temp waste gas cooling device, the tube side outlet connection First air of the pipe heat exchanger of high-temp waste gas cooling device
The heat primary air pipeline of induction apparatus, a hot air spout of First air induction apparatus be located at the axis of First air induction apparatus,
Face throat mixed zone, the ignition smooth combustion regenerative apparatus are arranged in throat mixed zone, lead to combustion chamber, the throat mixed zone
To shrink diffusion structure.
The high-temp waste gas cooling device includes exhaust steam passage, pipe heat exchanger, and the pipe heat exchanger is horizontally installed on
In exhaust steam passage.
The heat exchanger tube of the pipe heat exchanger be multilayer in-line arrangement, heat exchange tube spacing be more than 75mm, heat exchange tube diameter from
Upper layer is successively successively decreased toward lower layer or every two layers is successively decreased, and top layer tube bank is solid wear-resistant protection pipe, and caliber is restrained than the second layer and managed
Diameter is big.
Blower unit includes exhaust steam passage, cold a wind pipe, heat primary air pipeline, compensator, primary heat
Wind snout, flight, the tube side import of cold a wind pipe connection pipe heat exchanger, heat primary air connecting pipe of pipeline formula heat exchanger
Tube side outlet, the other end of heat primary air pipeline connects a hot air spout, side wall of the hot air spout from exhaust steam passage
It extends transversely into, face throat mixed zone, flight is equipped in a hot air spout, the upper end of the exhaust steam passage connects high temperature
The exhaust steam passage of exhaust gas cooling device, lower end are the first ash discharging hole, and compensator is provided on heat primary air pipeline.
The overfire air device includes Secondary Air entrance, Secondary Air manifold, Secondary Air branch pipe, overfire air jet, and described two
Secondary wind entrance is introduced from combustion chamber end, connects Secondary Air manifold, and Secondary Air manifold is circumferentially disposed in the inner wall of combustion chamber, if
Axially in the inner wall of combustion chamber, the end connection Secondary Air of Secondary Air branch pipe is total for setting, radial equipartition for dry Secondary Air branch pipe
It manages, several overfire air jets and combustion chamber is provided on Secondary Air branch pipe, the overfire air jet is along burner axial direction
Distribution is arranged with combustion chamber radial skew, and the inclined direction of all overfire air jets is consistent.
The overfire air jet is axially of the firing chamber with different tube diameters packet layout.
One end connection throat mixed zone of the combustion chamber, the other end are exported for combustion product gases, are set in the bottom of combustion chamber
There is ash discharging hole, wear-resisting boss is equipped on the inner wall of combustion chamber, exit is equipped with barricade in the combustion chamber.
Compared with prior art, the utility model has the beneficial effects that：
The utility model has the advantages of simple structure, is easy to Project Realization.
1) combustion apparatus of the utility model is low-temperature burning equipment.Air feed system is two sections of air feeds, can pass through control
First air coefficient of excess air is less than 1, and secondary air coefficient of excess is larger, and the concentration of oxygen is far from stoichiometry when making burning
Than, according to bias combustion principle and coordinate insulated combustion chamber control NOx production quantity.
2) the utility model has two-stage dust pelletizing system, using inertial dust collection and gravitational dust collection principle, before combustion, burns
Three sections of section and after-flame section point are dusted, and can be effectively removed 50% or more non-combustible dust, be reduced follow-up workshop section to equipment
It influences.Inertial dust collection principle is applied before burning, and lower sky is obtained to hot waste gas cooling using air preheater pipeline and air
Gas velocity makes non-combustible bulky grain dust drop to the first ash discharging hole.The grit that do not detach in burning zone collides during exercise
It is fallen down when roof high spot and falls into second, third ash bucket.It is equipped with fire-resistant abrasion-proof barricade at after-flame section, stops flue dust, makes
Flue dust falls into the 4th ash bucket.
3) the utility model has the function of low-pressure injection.Injection air air quantity is controlled by First air inlet adjusting valve, to control
Injection air ejector capacity processed is process stipulation pressure to control the wind pressure at kiln head cover.Simultaneously as the proportion of carbon is lighter,
Carbon in combustible exhaust gas can be adsorbed and burnt by injection air, and heavier group branch falls into the first ash discharging hole.
4) the utility model is equipped with high-temp waste gas cooling device, and cold First air can be heated into heat primary air by the present apparatus,
The temperature for greatly reducing exhaust gas simultaneously, increases the service life of upstream device, and reduce the investment about 65% of equipment and materials,
It ensure that the stability of key components and parts.
5) in the middle part of hot air spout of the First air induction apparatus of the utility model it is helical structure, injection air outlet is rotation
Wind is flowed out, can be mixed with combustible exhaust gas within the extremely short time, combustible is made uniformly to be contacted with oxygen, realize low contain
Measure the completely burned of combustible flue gas.
6) secondary air system of the utility model is radial tangential firing, and Secondary Air is in the combustion chamber vortex flow field, is made
Gas stirring is violent, and oxygen and combustible are uniformly mixed, and burning is complete.
7) Secondary Air of the utility model has a function of preheating and heat-insulation and heat-preservation, secondary air channel be distributed in combustion chamber interlayer it
In, play the role of cooled furnace wall during heating, the consumption of heat-barrier material can be saved, saves equipment investment 15%.
8) the utility model is equipped with ignition smooth combustion, regenerative apparatus, and 900 DEG C of high temperature can be maintained for more than in lighting-up tuyere, protects
Stablizing for card fuel is flammable, adapts to larger propellant composition variation.
9) the utility model is negative pressure running equipment, environmental-friendly, does not burn with anger, does not reveal pollutant.
Description of the drawings
Fig. 1 is the appearance front view of the utility model.
Fig. 2 is the sectional view of the utility model.
Fig. 3 is the A-A cross-section diagrams of Fig. 2.
Fig. 4 is the B-B cross-section diagrams of Fig. 2.
Fig. 5 is the C-C cross-section diagrams of Fig. 2.
In figure：1 high-temp waste gas cooling device, 2 First air induction apparatus, 3 ignition smooth combustion regenerative apparatus, 4 overfire air devices,
5 combustion chambers, 6 measure, control, alarm system, 1-1 low pressure exhaust gas imports, the cold a wind pipes of 1-2,1-3 abrasion protection pipes, 1-4
Heat exchanger tube, 1-5 Wear-resistant heat insulation layers, 2-1 First air inlet adjusting valves, 2-2 heat primary air pipelines, 2-3 compensators, 2-4 pipelines are solid
Determine ring, 2-5 end caps, 2-6 peepholes, hot air spout of 2-7,2-8 flights, 2-9 heat insulation and wear resistance layers, 2-10 is wear-resisting resistance to
Warm layer, 2-11 recuperation layers, 2-12 thermal insulation layers, 2-13 throats mixed zone, the first ash discharging holes of 2-14,2-15 exhaust gas inlets, 4-1 bis- times
Wind entrance, 4-2 Secondary Airs manifold, 4-3 Secondary Air branch pipe, 4-4 overfire air jets, 5-1 refractory materials, 5-2 barricades, 5-3 abrasionproofs
Layer, the outlet of 5-4 combustion product gases, second, third ash discharging hole of 5-5, the 4th ash discharging holes of 5-6, the wear-resisting boss of 5-7,5-8 manhole doors, 6-1
Exhaust gas inlet pressure gauge, 6-2 heat exchanger exit oxygen contents monitor table, 6-3 combustor exit temperature meters, 6-4 combustor exit pressures
Power table.
Specific implementation mode
Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings：
See Fig. 1-Fig. 5, a kind of device of processing vanadium titanium reduction rotary kiln exhaust gas, including it is high-temp waste gas cooling device 1, primary
Wind induction apparatus 2, ignition smooth combustion regenerative apparatus 3, overfire air device 4, combustion chamber 5, throat mixed zone 2-13, the high-temp waste gas
The exhaust steam passage of cooling device 1 is connected with the exhaust steam passage of First air induction apparatus 2, and the exhaust gas of First air induction apparatus 2 is logical
Road is connected to combustion chamber 5 by throat mixed zone 2-13, and the overfire air device 4 is circumferentially disposed in 5 inner wall of combustion chamber；Described one
The pipe heat exchanger of the wind inlet connection high-temp waste gas cooling device of secondary wind induction apparatus 2, high-temp waste gas cooling device 1
The heat primary air pipeline 2-2 of the tube side outlet connection First air induction apparatus 2 of pipe heat exchanger, the one of First air induction apparatus 2
Secondary hot air spout 2-7 is located at the axis of First air induction apparatus, face throat mixed zone 2-13, the ignition smooth combustion regenerative apparatus
3 are arranged in throat mixed zone 2-13, lead to combustion chamber, and the throat mixed zone 2-13 is to shrink diffusion structure.
Throat mixed zone 2-13 is followed successively by wear-resistant temperature-resistant layer 2-10, recuperation layer 2-11 from inside to outside by accumulation of heat brick masonry, every
Thermosphere 2-12.
The high-temp waste gas cooling device 1 includes exhaust steam passage, pipe heat exchanger, and the pipe heat exchanger is horizontally installed on
In exhaust steam passage.
The heat exchanger tube 1-4 of the pipe heat exchanger is multilayer in-line arrangement, and heat exchanger tube 1-4 spacing is more than 75mm, heat exchanger tube
Caliber successively successively decreases from upper layer toward lower layer or every two layers is successively decreased, and top layer tube bank is solid wear-resistant protection pipe 1-3, and caliber is than second
Layer tube bank caliber is big.Wear-resisting, heat-barrier material is lined with inside heat exchanger tube 1-4.The solid preferably wear-resisting rod irons of wear-resistant protection pipe 1-3 are simultaneously
Build-up wear-resistant alloy.Heat exchanger tube 1-4 is light pipe.
Low pressure exhaust gas import 1-1 is mounted on the cartridge inlet that is surrounded by Wear-resistant heat insulation layer 1-5, cold a wind pipe 1-2 from
Wear-resistant heat insulation layer 1-5 lateral leadins, mill is disposed with after cold a wind pipe 1-2 from low pressure exhaust gas import 1-1 to exit normal
Damage protection pipe 1-3, heat exchanger tube 1-4.The both ends of abrasion protection pipe 1-3 and heat exchanger tube 1-4 are embedded to Wear-resistant heat insulation layer 1-5, port dew
Go out.Cold First air is heated into heat primary air by pipe heat exchanger, while substantially reducing the temperature of high-temp waste gas, to improve downstream
The service life of equipment, and reduce the investment of equipment and materials.
Blower unit 2 includes exhaust steam passage, cold a wind pipe 1-2, heat primary air pipeline 2-2, compensator
2-3, a hot air spout 2-7, flight 2-8, the tube side import of cold a wind pipe 1-2 connections pipe heat exchanger, heat are primary
The tube side of wind pipeline 2-2 connection pipe heat exchangers exports, and the other end of heat primary air pipeline 2-2 connects a hot air spout 2-7,
One time hot air spout 2-7 is extended transversely into from the side wall of exhaust steam passage, face throat mixed zone 2-13, in a hot air spout 2-7
It is interior to be equipped with flight 2-8, the exhaust steam passage of the upper end connection high-temp waste gas cooling device 1 of the exhaust steam passage, lower end first
Ash discharging hole 2-14 is provided with compensator 2-3 on heat primary air pipeline 2-2.
The First air inlet adjusting valve 2-1 of First air induction apparatus 2 is installed on cold a wind pipe import 1-2.Compensator
2-3 is mounted on heat primary air pipeline 2-2, plays extraction duct thermal expansion.Pipeline fixed ring 2-4 is primary for fixed heat
Wind pipeline 2-2.End cap 2-5 is installed on the barrel end impaled by heat insulation and wear resistance layer 2-9, for blocking port.Primary heat
Wind snout 2-7 is sent into the exhaust steam passage of First air induction apparatus 1 from the centers end cap 2-5, and peephole 2-6 is sealed mounted on end
On head 2-5.The central hole of hot air spout 2-7 faces throat mixed zone 2-13.It is disposed with 2 bottom of blower unit
Flue-dust retainer and the first ash discharging hole 2-14.
The exhaust steam passage of First air induction apparatus 2 is vertically arranged with a hot air spout 2-7.First ash discharging hole 2-14 is one
Below secondary hot air spout 2-7.Hot air spout 2-7 is located at the axis of First air induction apparatus 2, and injection air outlet is high rapid fire
It flows (60~100m/s), combustible exhaust gas is introduced into combustion chamber 5 from a side hot air spout 2-7.Inside hot air spout 2-7
It is disposed with flight 2-8, make the First air sprayed from a hot air spout 2-7 be swirl jet makes oxygen for stirring evenly exhaust gas
It is uniformly mixed, and forms flat flame.
The overfire air device 4 includes Secondary Air entrance 4-1, Secondary Air manifold 4-2, Secondary Air branch pipe 4-3, Secondary Air spray
Mouth 4-4, the Secondary Air entrance 4-1 are introduced from 5 end of combustion chamber, and connection Secondary Air manifold 4-2, Secondary Air manifold 4-1 are circumferential
It being arranged in the inner wall of combustion chamber 5, several Secondary Air branch pipes 4-3 is axially arranged, radial equipartition is in the inner wall of combustion chamber 5,
The end of Secondary Air branch pipe 4-3 connects Secondary Air manifold 4-2, several overfire air jets 4-4 is provided on Secondary Air branch pipe 4-3
It being connected to combustion chamber 5, the overfire air jet 4-4 is arranged along the axial distribution of burner 5, with 5 radial skew of combustion chamber, and all two
The inclined direction of secondary wind nozzle 4-4 is consistent.The Secondary Air entrance 4-1 of overfire air device 4 is arranged in the both sides of combustion chamber 5, secondary
Wind manifold 4-2 are circumferentially disposed in 5 end of combustion chamber.
The overfire air jet 4-4 is axially of the firing chamber with different tube diameters packet layout.
The shape of overfire air device 4 is not limited to circular cross-section shown in figure, can also be rectangular or other shapes.It is secondary
Wind manifold 4-2 and Secondary Air branch pipe 4-3 are coated in 5 inner wall refractory material 5-1 of combustion chamber.
One end of the combustion chamber 5 connects throat mixed zone 2-13, and the other end is that combustion product gases export 5-4, in combustion chamber 5
Bottom be equipped with flue-dust retainer and ash discharging hole (second, third ash discharging hole 5-5；4th ash discharging hole 5-6), on the inner wall of combustion chamber 5
Equipped with wear-resisting boss 5-7, barricade 5-2 is equipped at 5 inner outlet of combustion chamber.
Combustion chamber 5 surrounds tubular by refractory material 5-1, is additionally provided with inspection manhole door 5-8 on combustion chamber 5, outside combustion chamber 5
Shape is not limited to circular cross-section shown in figure, can also be rectangular.Combustion chamber 5 exports barricade 5-2 and is parallel to the burning of combustion chamber 5 cigarette
Gas exports 5-4, and misplace arrangement up and down, is highly not less than combustion chamber cylinder inside radius and is highly not less than if combustion chamber is rectangle
The half of combustion chamber elevation, it is minimum dimension to be up to shown in diameter or interior 2/3 high, Fig. 2.
The utility model is additionally provided with measurement, control, alarm system, including exhaust gas inlet pressure gauge 6-1, heat exchanger exit
Oxygen content monitors table 6-2, combustor exit temperature meter 6-3, combustor exit pressure gauge 6-4.Exhaust gas inlet pressure gauge 6-1 is located at
At low pressure exhaust gas import 1-1.Combustor exit pressure gauge 6-4 is located at combustion chamber 5 combustion product gases outlet 5-4.Combustor exit temperature
Degree meter 6-3 is located at combustion chamber 5 combustion product gases outlet 5-4.Heat exchanger exit oxygen content monitoring table 6-2 is located at below pipe heat exchanger
Combustible exhaust gas exit, heat exchanger exit oxygen content monitoring table 6-2 send out alarm signal when detecting oxygen content, tubular type is prompted to change
Hot device leakage.
Exhaust gas inlet pressure is controlled by the aperture of First air inlet adjusting valve 2-1.5 outlet pressure of combustion chamber is by user
The air force adjusting of selected wind turbine is controlled.
Ignition smooth combustion regenerative apparatus 3 uses high heating value fuel gas or liquid, is arranged in throat mixed zone 2-13, combustion chamber
5 inlet.Ignition smooth combustion regenerative apparatus 3 is using combustor or gas burner or oil burner.Ignition smooth combustion regenerative apparatus 3
Contain igniting wind turbine, flame detector, burner, gas fuel control valve and proportional controller.
The heat accumulation function of steady combustion regenerative apparatus 3 is provided by the recuperation layer 2-11 used in throat mixed zone 2-13, recuperation layer
2-11 is built by laying bricks or stones using heat-storing material, and the temperature at burner can be kept to be higher than 900 DEG C, and ensure fuel gas stablizes burning.
A kind of technique of processing vanadium titanium reduction rotary kiln exhaust gas：
It must be purged before equipment initial launch, the wind turbine that the setting of the rears 5-4 is exported by 5 combustion product gases of combustion chamber will
Fuel gas inside combustion chamber 5 extracts.
It is lighted a fire by ignition smooth combustion regenerative apparatus 3, flame kept burning day and night is formed into combustion chamber 5 in throat mixed zone 2-13, it is right
Combustion chamber 5 carries out warming temperature, and pressure is 0~-50Pa at control 5 combustion product gases of combustion chamber outlet 5-4；Then start First air
Machine provides First air to First air induction apparatus 2, and rotary kiln drives to produce at this time, and high temperature combustible exhaust gas is cooled down from high-temp waste gas
The low pressure exhaust gas import 1-1 of device 1 enters, and a cold air enters from cold a wind pipe 1-2, and high temperature combustible exhaust gas walks tubular type
The shell side of heat exchanger, a cold air walk the tube side of pipe heat exchanger, and cooled combustible exhaust gas reduces flow velocity and enters First air
The exhaust steam passage of induction apparatus 2, non-combustible bulky grain dust drop to the first ash discharging hole 2- of 2 bottom of First air induction apparatus
14, combustion chamber 5 is sprayed into from a hot air spout 2-7 high flow rate as a combustion air after a cold air heat exchange heating, and will
Combustible exhaust gas injection enters burning in combustion chamber 5；Overfire air fan, Xiang Ran are opened when 5 temperature reaches 800~900 DEG C when combustion chamber
It burns and is passed through secondary combustion-supporting wind in room 5, adjust Secondary Air air quantity, control 5 combustion product gases of combustion chamber outlet 5-4 temperature is 850~950
℃；Non-combustible dust landing is in the ash discharging hole of 5 bottom of combustion chamber, burning cigarette of the safe exhaust gas without combustible from combustion chamber 5
Gas exports 5-4 discharges.
The injection flow velocity of the First air is 60~100m/s.
Claims (7)
1. a kind of device of processing vanadium titanium reduction rotary kiln exhaust gas, which is characterized in that including high-temp waste gas cooling device, First air
Induction apparatus, ignition smooth combustion regenerative apparatus, overfire air device, combustion chamber, throat mixed zone, the high-temp waste gas cooling device
Exhaust steam passage is connected with the exhaust steam passage of First air induction apparatus, and the exhaust steam passage of First air induction apparatus is mixed by throat
Area is connected to combustion chamber, in the circumferentially disposed wall in the combustion chamber of the overfire air device；The First air of the First air induction apparatus
Import connects the pipe heat exchanger of high-temp waste gas cooling device, and the tube side outlet of the pipe heat exchanger of high-temp waste gas cooling device connects
The heat primary air pipeline of First air induction apparatus is connect, a hot air spout of First air induction apparatus is located at First air induction apparatus
Axis, face throat mixed zone, the ignition smooth combustion regenerative apparatus is arranged in throat mixed zone, leads to combustion chamber, the larynx
Portion mixed zone is to shrink diffusion structure.
2. a kind of device of processing vanadium titanium reduction rotary kiln exhaust gas according to claim 1, which is characterized in that the high temperature
Exhaust gas cooling device includes exhaust steam passage, pipe heat exchanger, and the pipe heat exchanger is horizontally installed in exhaust steam passage.
3. a kind of device of processing vanadium titanium reduction rotary kiln exhaust gas according to claim 2, which is characterized in that the tubular type
The heat exchanger tube of heat exchanger is multilayer in-line arrangement, and heat exchange tube spacing is more than 75mm, and heat exchange tube diameter is successively passed from upper layer toward lower layer
Subtract or every two layers is successively decreased, top layer tube bank is solid wear-resistant protection pipe, and caliber is bigger than second layer tube bank caliber.
4. a kind of device of processing vanadium titanium reduction rotary kiln exhaust gas according to claim 1, which is characterized in that described primary
Blower unit includes exhaust steam passage, cold a wind pipe, heat primary air pipeline, compensator, hot air spout, a flight, cold
A wind pipe connects the tube side import of pipe heat exchanger, the tube side outlet of heat primary air connecting pipe of pipeline formula heat exchanger, heat one
The other end of secondary wind pipeline connects a hot air spout, and one time hot air spout is extended transversely into from the side wall of exhaust steam passage, face larynx
Portion mixed zone is equipped with flight in a hot air spout, the upper end connection high-temp waste gas cooling device of the exhaust steam passage
Exhaust steam passage, lower end are the first ash discharging hole, and compensator is provided on heat primary air pipeline.
5. a kind of device of processing vanadium titanium reduction rotary kiln exhaust gas according to claim 1, which is characterized in that described secondary
Wind apparatus includes Secondary Air entrance, Secondary Air manifold, Secondary Air branch pipe, overfire air jet, and the Secondary Air entrance is from combustion chamber
End introduces, and connects Secondary Air manifold, Secondary Air manifold is circumferentially disposed in the inner wall of combustion chamber, several Secondary Air branch pipe axis
To setting, radial equipartition in the inner wall of combustion chamber, the end of Secondary Air branch pipe connects Secondary Air manifold, is set on Secondary Air branch pipe
It is equipped with several overfire air jets and combustion chamber, axially distribution and combustion chamber are radial along burner for the overfire air jet
It is obliquely installed, the inclined direction of all overfire air jets is consistent.
6. a kind of device of processing vanadium titanium reduction rotary kiln exhaust gas according to claim 5, which is characterized in that described secondary
Wind nozzle is axially of the firing chamber with different tube diameters packet layout.
7. a kind of device of processing vanadium titanium reduction rotary kiln exhaust gas according to claim 1, which is characterized in that the burning
One end connection throat mixed zone of room, the other end export for combustion product gases, ash discharging hole are equipped in the bottom of combustion chamber, in combustion chamber
Inner wall be equipped with wear-resisting boss, in the combustion chamber exit be equipped with barricade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721808980.3U CN207741587U (en) | 2017-12-21 | 2017-12-21 | A kind of device of processing vanadium titanium reduction rotary kiln exhaust gas |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721808980.3U CN207741587U (en) | 2017-12-21 | 2017-12-21 | A kind of device of processing vanadium titanium reduction rotary kiln exhaust gas |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107976080A (en) * | 2017-12-21 | 2018-05-01 | 中冶焦耐(大连)工程技术有限公司 | A kind of device and technique for handling vanadium titanium reduction rotary kiln exhaust gas |
-
2017
- 2017-12-21 CN CN201721808980.3U patent/CN207741587U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107976080A (en) * | 2017-12-21 | 2018-05-01 | 中冶焦耐(大连)工程技术有限公司 | A kind of device and technique for handling vanadium titanium reduction rotary kiln exhaust gas |
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