CN109749788A - One kind processing system of coal gas containing zinc and method - Google Patents
One kind processing system of coal gas containing zinc and method Download PDFInfo
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- CN109749788A CN109749788A CN201811454802.4A CN201811454802A CN109749788A CN 109749788 A CN109749788 A CN 109749788A CN 201811454802 A CN201811454802 A CN 201811454802A CN 109749788 A CN109749788 A CN 109749788A
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Abstract
The present invention relates to a kind of processing system of coal gas containing zinc and method, which includes waste heat boiler, the mixed wind deduster of eddy flow, economizer, bag filter and gas chamber；Eddy flow mixes wind deduster and quickly mixes the coal gas of high temperature from waste heat boiler with the cooled coal gas from gas chamber, regulating valve is provided on the pipeline of the mixed wind deduster of connection eddy flow and gas chamber, the eddy flow mixes wind deduster and is equipped with the air inlet connection that gas outlet passes through pipeline and economizer, the gas outlet of economizer is connected by the air inlet of pipeline and bag filter, and the gas outlet of bag filter is connected by the air inlet of air-introduced machine and gas chamber.The present invention make in coal gas of high temperature containing the low boiling points such as zinc, low melting point quenching, deposit is easy to remove in fluffy；Dust in coal gas is separated from air-flow under the influence of centrifugal force, avoids the viscous stifled of subsequent heat exchange equipment.
Description
Technical field
The invention belongs to coal gas of high temperature processing technology fields, more particularly to a kind of processing system of coal gas containing zinc and method.
Background technique
Due to a large amount of uses of the relatively high Ore Imported of zinc content and steel scrap, directly result in steel production sintering,
The raising of Zn-ef ficiency content in the dust and sludge that the processes such as ironmaking, steel-making generate, the dust of these high zinc is again by as raw material
Sintering is returned, and is again introduced into blast furnace, therefore zinc is made to generate circulation collection in Dust of Iron And Steel Works, and such Zn-ef ficiency recycles
The failures such as enrichment will lead to blast furnace and dross occurs, air port is burnt, gas piping blocks, directly affect blast furnace and normally produce.In addition,
The air storage of dirt mud is taken out in treatment process, and the wasting of resources and secondary pollution are easily caused.The processing of Zinc-Bearing Wastes has become smelting
One of hot spot of Jin Jie.
Currently, the technique of processing Zinc-Bearing Wastes has physical method, wet process and 3 kinds of pyrogenic process.The generally popular processing of iron and steel enterprise
Method is still thermal process, is also much more familiar with to relevant device and matching technology.The basic principle of pyrogenic attack technique is all benefit
With the zinc boiling point property volatile compared with low and high temperature, the volatilization of the zinc in dust enriching and recovering again is made by reduction.In the gas phase, zinc
Steam exists in the form of oxide particle, can be collected together with flue dust.
Coal gas of high temperature usually carries out waste heat recycling by waste heat boiler, therefore waste heat boiler is that high temperature coal gas containing zinc cools back
The important equipment of receipts system.In coal gas of high temperature cooling procedure, the low boiling points such as oxide and chloride of zinc, the easy phase of low melting point
It is mutually bonded together, easily causes coal gas cooling and the blocking of residual neat recovering system, the sticky big, corrosivity of these tampers
By force, cleaning is difficult, and need to stop production cleaning when serious, operate normally production can not continuously.
Summary of the invention
It is an object of the invention to overcome the defect of the prior art, one kind processing system of coal gas containing zinc and method are provided,
It is arranged the mixed wind deduster of eddy flow and quickly mixes the coal gas of high temperature from waste heat boiler with the cooled coal gas from gas chamber, makes height
In warm coal gas containing the low boiling points such as zinc, low melting point quenching, deposit is easy to remove in fluffy；Dust in coal gas
It is separated from air-flow under the influence of centrifugal force, avoids the viscous stifled of subsequent heat exchange equipment.
The present invention is implemented as follows: the present invention provides a kind of processing system of coal gas containing zinc, including waste heat boiler, eddy flow mix
Wind deduster, coal gas cooling device and gas chamber；The waste heat boiler is equipped with air inlet and air outlet, and the eddy flow mixes wind dedusting
Device is equipped with air inlet and is connected by the gas outlet of pipeline and waste heat boiler, and the eddy flow mixes wind deduster and passes through pipe equipped with air inlet
It is provided with regulating valve on the pipeline of the connection of the gas outlet of road and gas chamber, the mixed wind deduster of connection eddy flow and gas chamber, for adjusting
Section enters the cooled coal gas amount that eddy flow mixes wind deduster；The eddy flow mixes wind deduster and is cooled down equipped with gas outlet by pipeline and coal gas
The air inlet of device connects, and the gas outlet of coal gas cooling device is connected by the air inlet of pipeline and gas chamber.
Further, the processing system of coal gas containing zinc of the invention further includes between coal gas cooling device and gas chamber
The gas outlet of bag filter and gas cooler, the bag filter is connected by the air inlet of air-introduced machine and gas cooler
It connects, the gas outlet of the gas cooler and the air inlet of gas chamber connect, and the air inlet and coal gas of the bag filter drop
The gas outlet of warm device connects.
Further, coal gas containing zinc of the invention processing system further includes drum, and the heat exchange of the coal gas cooling device is situated between
Matter import is connect through feed pump with outer net soft water, and the water into coal gas cooling device is adjusted by feed pump, coal gas drop
The heat transferring medium outlet of warm device is connected by the first import of pipeline and drum, the water outlet of the drum and waste heat boiler
The heat transferring medium outlet of the connection of heat transferring medium entrance, waste heat boiler is connect with the second import that drum is equipped with, and the drum is equipped with
Saturated vapor outlet.
Further, the saturated vapor outlet of the drum is located at the top of drum, and the water outlet of the drum is located at vapour
The bottom of packet, the first import, the second import of the drum are respectively positioned on the side wall of drum；First import of the drum is lower than the
Two imports.
Further, the coal gas cooling device uses economizer；The eddy flow mixes to be set between wind deduster and economizer
There is air preheater, the gas outlet that the eddy flow mixes wind deduster is connected by the air inlet of pipeline and air preheater, described
The gas outlet of air preheater is connected by the air inlet of pipeline and economizer.
Air preheater, which can absorb the heat in flue gas, reduces exhaust gas temperature (air and flue gas heat exchange, flue-gas temperature drop
Low, air themperature increases), to improve the thermal efficiency of boiler.The air of heating can be used for the processing of Zinc-Bearing Wastes, due to air
Preheating, fuel fire and combustion process can be improved, reduce the incomplete combustion loss of fuel.
Further, coal gas containing zinc of the invention processing system further includes oxygen-eliminating device, and oxygen-eliminating device is equipped with water inlet and water outlet
Mouthful, the water outlet of the oxygen-eliminating device is connected by pipeline through the heat transferring medium import of feed pump and economizer, the water inlet of oxygen-eliminating device
Mouth connection outer net soft water.
Further, the waste heat boiler uses vertical structure, and the air inlet of the waste heat boiler is arranged in waste heat boiler
Upper end, the lower end of waste heat boiler is arranged in the gas outlet of the waste heat boiler, makes coal gas upper entering and lower leaving, in the waste heat boiler
Portion is hollow, and heating surface is fin panel casing.Without arranging any heating surface in the big cavity of waste heat boiler.
Further, the air inlet of the waste heat boiler is located at the upper end of fin panel casing, the outlet of the waste heat boiler
Mouth is located at the lower end of fin panel casing.
Further, the eddy flow mixes and is connected to coal by pipeline at least provided with an air inlet on the cylinder of wind deduster
The gas outlet of gas holder, the eddy flow, which mixes, passes through pipeline and waste heat boiler at least provided with an air inlet on the cylinder of wind deduster
Gas outlet connection.
Further, the air inlet pipe on the mixed wind deduster cylinder of the eddy flow and cylinder are tangent.Eddy flow of the invention mixes wind
Deduster is the improvement of common cyclone dust collectors, increases a mixed cooled coal gas mouth, so there is the dual work of mixed wind and dedusting
With.Air inlet and cylinder it is tangent be the centrifugal force that utilizes swirling eddy to generate for rotational flow after allowing air-flow to enter deduster
Separate grit from air-flow.
Further, the waste heat boiler and eddy flow, which mix in wind deduster, is equipped with online ash removal device.
Further, the waste heat boiler, eddy flow mix wind deduster and the bottom of bag filter is equipped with ash cellar.
The present invention also provides a kind of processing methods of coal gas containing zinc, include the following steps:
1) control high temperature coal gas containing zinc enters waste heat boiler, and after exchanging heat with water, gas temperature is down to the first set temperature；
Wind deduster is mixed subsequently into eddy flow, is cooled to the second set temperature with the quick combination cooling of cooled coal gas from gas chamber, together
When mixed coal gas mixed in eddy flow and remove most of flue dust in wind deduster；The cooled coal gas amount for mixing wind deduster into eddy flow is logical
The regulating valve that eddy flow mixes between wind deduster and gas chamber on pipeline is crossed to be adjusted；Then coal gas enters air heat exchanger and coal gas
Cooling device exchanges heat, and the gas temperature after exchanging heat is down to third set temperature, enters back into bag filter refined dedusting, most
It is sent into after gas cooler cooling by air-introduced machine afterwards and enters gas chamber storage；
2) water inlet of control oxygen-eliminating device, water inlet enter back into coal gas cooling device after oxygen-eliminating device deoxygenation and carry out heat exchange, add
Water after heat is sent into drum, provides heat transferring medium for residual heat boiler for exchanging heat；Water into coal gas cooling device passes through feed pump
It is adjusted.
Further, step 1) according to enter eddy flow mix wind deduster coal gas of high temperature flow and the first set temperature and
The second set temperature after the cooling of coal gas combination cooling introduces the amount of cooled coal gas needed for calculating；Eddy flow mixes the output of wind deduster
Coal gas sequentially enters air preheater and economizer exchanges heat, and the gas temperature after exchanging heat is down to third set temperature.
Compared with prior art, the invention has the following advantages:
(1) due to the processing system of coal gas containing zinc of the invention be provided with waste heat boiler, eddy flow mix wind deduster, economizer,
Bag filter and gas chamber；The eddy flow mixes wind deduster and is equipped with the gas outlet company that air inlet passes through pipeline and waste heat boiler
It connects, the eddy flow mixes wind deduster and is equipped with air inlet by the connection of the gas outlet of pipeline and gas chamber, and connection eddy flow mixes wind dedusting
It is provided with regulating valve on the pipeline of device and gas chamber, for adjusting the cooled coal gas amount for entering eddy flow and mixing wind deduster.It is mixed in eddy flow
In wind deduster, the coal gas of high temperature from waste heat boiler is quickly mixed with the cooled coal gas from gas chamber, is made in coal gas of high temperature
It is quenched containing the low boiling points such as zinc, low melting point, deposit is easy to remove in fluffy；Dust in coal gas is in centrifugal force
It is separated from air-flow under effect, avoids the viscous stifled of subsequent heat exchange equipment.
(2) waste heat boiler uses vertical big cavity structure, and the air inlet of the waste heat boiler is arranged in waste heat boiler
Upper end, the gas outlet of the waste heat boiler is arranged in the lower end of waste heat boiler, makes coal gas upper entering and lower leaving, avoid coal gas of high temperature pair
There are also the effect of Natural Dust Suppression while heating surface directly washes away, the dust accumulation in waste heat boiler can be reduced and reduce abrasion.It is described
Waste heat boiler inner hollow, heating surface are fin panel casing, do not arrange any heating surface in the big cavity of waste heat boiler, thus
Make to be not easy to bond in flue dust cooling procedure.And waste heat boiler of the invention uses vertical structure, it can be big compared to horizontal type structure
It is big to reduce occupied area.
(3) since the heat transferring medium import of the coal gas cooling device is connect through feed pump with water source, cool down into coal gas
The water of device is adjusted by feed pump, the outlet of the heat transferring medium of coal gas cooling device by pipeline and drum first into
Mouth connection, the outlet of the drum and the heat transferring medium entrance of waste heat boiler connect, the heat transferring medium outlet of waste heat boiler and vapour
The the second import connection being equipped with is wrapped, the drum is exported equipped with saturated vapor.Soft water of the invention is sent after being heated by economizer
Enter drum, provides heat transferring medium for residual heat boiler for exchanging heat.And drum can also export output saturated vapor, output by saturated vapor
Saturated vapor may be incorporated into steam pipe network or for generating electricity.
(4) eddy flow of the invention mixes the improvement that wind deduster is common cyclone dust collectors, increases a mixed cooled coal gas
Mouthful, so there is the double action of mixed wind and dedusting.Air inlet and cylinder it is tangent be for rotating flow after allowing air-flow to enter deduster
It is dynamic, grit is separated from air-flow using the centrifugal force that swirling eddy generates.
Detailed description of the invention
Fig. 1 is the schematic diagram of the processing system of coal gas containing zinc of the invention；
Fig. 2 is that the eddy flow of the processing system of coal gas containing zinc of the invention mixes the top view of wind deduster.
In attached drawing, 1 is waste heat boiler, and 2 mix wind deduster for eddy flow, and 21 be cylinder, and 22 be air inlet pipe, and 3 be air preheat
Device, 4 be economizer, and 5 be bag filter, and 6 be air-introduced machine, and 7 be gas cooler, and 8 be gas chamber, and 9 be drum, and 10 be deoxygenation
Device, 11 be feed pump, and 12 be regulating valve.
Specific embodiment
The following is a clear and complete description of the technical scheme in the embodiments of the invention, it is clear that described embodiment
Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
Art personnel all other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
Referring to Fig. 1, the embodiment of the present invention provides a kind of processing system of coal gas containing zinc, including set gradually waste heat boiler 1,
Eddy flow mixes wind deduster 2, coal gas cooling device, bag filter 5 and gas chamber 8；The waste heat boiler 1 is equipped with air inlet and goes out
Port, the eddy flow mix wind deduster 2 and are connect by pipeline with the gas outlet of waste heat boiler 1 equipped with the first air inlet, the rotation
It flows mixed wind deduster 2 and is connect by pipeline with the gas outlet of gas chamber 8 equipped with the second air inlet, removed for mixing wind to the eddy flow
Cooled coal gas is mixed into dirt device 2, connection eddy flow mixes and is provided with regulating valve 12 on wind deduster 2 and the pipeline of gas chamber 8, for adjusting
The cooled coal gas amount of wind deduster 2 is mixed into eddy flow；The eddy flow mixes wind deduster 2 and is cooled down equipped with gas outlet by pipeline and coal gas
The air inlet of device connects, and the gas outlet of coal gas cooling device is connect by pipeline with the air inlet of bag filter 5, and cloth bag removes
The gas outlet of dirt device 5 is connect by air-introduced machine 6 with the air inlet of gas cooler 7, the gas outlet of the gas cooler 7 and coal
The air inlet of gas holder 8 connects.Cold and hot coal gas mixes rotational flow in wind deduster 2 in eddy flow, can quickly mix, make high-temperature coal
In gas containing the low boiling points such as zinc, low melting point quenching, deposit is easy to remove in fluffy；Dust in coal gas from
It is separated from air-flow under the action of mental and physical efforts, avoids the viscous stifled of subsequent heat exchange equipment.
In actual production, the present invention is according to the coal gas of high temperature flow and temperature that enter the mixed wind deduster 2 of eddy flow and setting
Temperature after the cooling of coal gas combination cooling introduces the amount of cooled coal gas needed for calculating, mix wind deduster 2 and coal gas using connection eddy flow
Regulating valve 12 on the pipeline of cabinet 8 adjusts the cooled coal gas amount that eddy flow mixes wind deduster 2 that enters, it is ensured that goes out eddy flow and mixes wind deduster 2
Mixed gas be cooled to corresponding temperature.
Further, gas cooler is equipped between the bag filter and gas chamber, the bag filter goes out
Port is connected by the air inlet of air-introduced machine and gas cooler, the gas outlet of the gas cooler and the air inlet of gas chamber
Connection.
Further, coal gas containing zinc of the invention processing system further includes drum 9, and the heat exchange of the coal gas cooling device is situated between
Matter import is connect through feed pump 11 with water source, and the water into coal gas cooling device is adjusted by feed pump, coal gas cooling
The heat transferring medium outlet of device is connect by pipeline with the first import of drum 9, the water outlet and waste heat boiler 1 of the drum 9
Heat transferring medium entrance connection, waste heat boiler 1 heat transferring medium outlet is connect with the second import that drum 9 is equipped with, the drum 9
It is exported equipped with saturated vapor.
Further, the saturated vapor outlet of the drum 9 is located at the top of drum 9, and the water outlet of the drum 9 is located at
The bottom of drum 9, the first import, the second import of the drum 9 are respectively positioned on the side wall of drum 9；First import of the drum 9
Lower than the second import.
Further, coal gas containing zinc of the invention processing system further includes oxygen-eliminating device 10, oxygen-eliminating device 10 be equipped with water inlet and
The water outlet of water outlet, the oxygen-eliminating device is connect through feed pump 11 with the heat transferring medium import of economizer 4 by pipeline, oxygen-eliminating device
10 water inlet connects outer net water source.
Further, boiler feed water is softened water or demineralized water, and external soft water is pumped into oxygen-eliminating device through deaerated feedwater, then
Economizer is supplied through feed pump, enters drum (drum) after economizer.
Further, the coal gas cooling device uses economizer 4；The eddy flow mixes between wind deduster 2 and economizer 4
Equipped with air preheater 3, the gas outlet that the eddy flow mixes wind deduster 2 is connect by pipeline with the air inlet of air preheater 3,
The gas outlet of the air preheater 3 is connect by pipeline with the air inlet of economizer 4.
Further, the waste heat boiler 1 uses vertical structure, and the air inlet of the waste heat boiler 1 is arranged in waste heat pot
The lower end of waste heat boiler 1 is arranged in the gas outlet of the upper end of furnace 1, the waste heat boiler 1, makes coal gas upper entering and lower leaving, avoids high temperature
There are also the effects of Natural Dust Suppression while coal gas directly washes away heating surface, can substantially reduce the product of 1 heating surface of waste heat boiler
Ash and abrasion.1 inner hollow of waste heat boiler, heating surface are fin panel casing, are not arranged in the big cavity of waste heat boiler 1
Any heating surface, to make to be not easy to bond in flue dust cooling procedure.And waste heat boiler 1 of the invention uses vertical structure, compares
Occupied area can be greatly reduced in horizontal type structure.
Further, the air inlet of the waste heat boiler 1 is located at the upper end of fin panel casing, and the waste heat boiler 1 goes out
Port is located at the lower end of fin panel casing.
Further, it is connected at least provided with an air inlet by pipeline on the cylinder of the mixed wind deduster 2 of the eddy flow
The gas outlet of gas chamber 8, the eddy flow, which mixes, passes through pipeline and waste heat pot at least provided with an air inlet on the cylinder of wind deduster 2
The gas outlet of furnace 1 connects；Air inlet pipe 22 and cylinder 21 on mixed 2 cylinder of wind deduster of eddy flow is tangent.
Further, the waste heat boiler 1 and eddy flow, which mix in wind deduster 2, is equipped with online ash removal device, Ke Yiding
The dust that phase adheres to wall surface is cleared up.Further, the waste heat boiler 1, eddy flow mix wind deduster 2 and bag-type dust
5 bottom of device is equipped with ash cellar, for collecting and draining the dust to settle down.
The embodiment of the present invention also provides a kind of processing method of coal gas containing zinc, uses the above-mentioned processing system of coal gas containing zinc, place
Reason method includes the following steps:
1) control high temperature coal gas containing zinc enters waste heat boiler 1, and after exchanging heat with water, gas temperature is down to the first set temperature
Such as 750 DEG C or so；Wind deduster 2 is mixed subsequently into eddy flow, is cooled to the quick combination cooling of cooled coal gas from gas chamber 8
Such as 600 DEG C or so of two set temperatures, while mixed coal gas mixes in eddy flow and removes most of flue dust in wind deduster 2；Into
The cooled coal gas amount that eddy flow mixes wind deduster 2 is adjusted by the regulating valve 12 that eddy flow mixes between wind deduster 2 and gas chamber 8 on pipeline
Section；Then coal gas enters air preheater 3 and economizer 4 exchanges heat, and the gas temperature after exchanging heat is down to third setting temperature
For such as 200 DEG C of degree hereinafter, entering back into 5 refined dedusting of bag filter, it is laggard to be sent into the cooling of gas cooler 7 finally by air-introduced machine 6
Enter the storage of gas chamber 8；First set temperature, the second set temperature, third set temperature are arranged according to actual needs.The present embodiment
Increase gas cooler between gas chamber and air-introduced machine 6, temperature is at 100 DEG C or more after dedusting for coal gas before, and coal gas
Cabinet requires air inlet to be not higher than 70 DEG C, so needing to be arranged a coal gas cooling device reduces gas temperature.
2) control oxygen-eliminating device 10 is intake, and water inlet enters back into economizer 4 after 10 deoxygenation of oxygen-eliminating device and carries out heat exchange, heating
Water afterwards is sent into drum 9, provides heat transferring medium for the heat exchange of waste heat boiler 1；Water into economizer 4 by oxygen-eliminating device 10 and saves
Feed pump 11 on 4 pipeline of coal device is adjusted.
Further, step 1) according to enter eddy flow mix wind deduster 2 coal gas of high temperature flow and the first set temperature with
And the second set temperature after the cooling of coal gas combination cooling, the amount of cooled coal gas is introduced needed for calculating.The adjusting of this water is root
It is calculated according to heat transfer process energy balance.It converts using a thermal balance.Thermal balance: QHeating gas heat release=QCooled coal gas heat absorption, it may be assumed that VHot coal
CHot coal(THot coal-TMixed coal)=VCold coalCCold coal(TMixed coal-TCold coal), VCold coalIt can calculate and find out.
In formula: VHot coal、VCold coalRespectively enter coal gas of high temperature and cooled coal gas flow that eddy flow mixes wind deduster, unit m3/
h；CHot coal、CCold coalThe respectively avergae specific heat of coal gas of high temperature and cooled coal gas, unit kJ/m3·℃；THot coal、TCold coal、TMixed coalIt is respectively high
The temperature of warm coal gas, cooled coal gas and mixed gas, unit are DEG C.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of processing system of coal gas containing zinc, it is characterised in that: mix wind deduster, coal gas cooling dress including waste heat boiler, eddy flow
It sets and gas chamber；The waste heat boiler is equipped with air inlet and air outlet, and the eddy flow mixes wind deduster and passes through pipe equipped with air inlet
The connection of the gas outlet of road and waste heat boiler, the eddy flow mix wind deduster and are equipped with the gas outlet that air inlet passes through pipeline and gas chamber
It is provided with regulating valve on the pipeline of connection, the mixed wind deduster of connection eddy flow and gas chamber, enters eddy flow for adjusting and mixes wind dedusting
The cooled coal gas amount of device；The eddy flow mixes wind deduster and is connect by pipeline with the air inlet of coal gas cooling device equipped with gas outlet,
The gas outlet of coal gas cooling device is connected by the air inlet of pipeline and gas chamber.
2. the processing system of coal gas containing zinc according to claim 1, it is characterised in that: further include be located at coal gas cooling device with
The gas outlet of bag filter and gas cooler between gas chamber, the bag filter is cooling by air-introduced machine and coal gas
The air inlet of device connects, and the gas outlet of the gas cooler and the air inlet of gas chamber connect, the bag filter into
Port is connect with the gas outlet of coal gas cooling device.
3. the processing system of coal gas containing zinc according to claim 1, it is characterised in that: it further include drum, the coal gas cooling
The heat transferring medium import of device is connect through feed pump with outer net soft water, and the water into coal gas cooling device is carried out by feed pump
It adjusts, the heat transferring medium outlet of coal gas cooling device is connected by the first import of pipeline and drum, the water outlet of the drum
It being connect with the heat transferring medium entrance of waste heat boiler, the heat transferring medium outlet of waste heat boiler is connect with the second import that drum is equipped with,
The drum is exported equipped with saturated vapor.
4. the processing system of coal gas containing zinc according to claim 3, it is characterised in that: the coal gas cooling device includes saving coal
Device；The eddy flow mixes and is equipped with air preheater between wind deduster and economizer, and the gas outlet that the eddy flow mixes wind deduster is logical
The connection of the air inlet of piping and air preheater, the gas outlet of the air preheater pass through the air inlet of pipeline and economizer
Connection.
5. the processing system of coal gas containing zinc according to claim 3, it is characterised in that: further include oxygen-eliminating device, oxygen-eliminating device is equipped with
The water outlet of inlet and outlet, the oxygen-eliminating device is connected by pipeline through the heat transferring medium import of feed pump and economizer,
The water inlet of oxygen-eliminating device connects outer net soft water.
6. the processing system of coal gas containing zinc according to claim 1, it is characterised in that: the waste heat boiler uses vertical knot
The upper end of waste heat boiler is arranged in structure, the air inlet of the waste heat boiler, and the gas outlet of the waste heat boiler is arranged in waste heat pot
The lower end of furnace makes coal gas upper entering and lower leaving, and the waste heat boiler inner hollow, heating surface is fin panel casing.
7. the processing system of coal gas containing zinc according to claim 1, it is characterised in that: the eddy flow mixes the cylinder of wind deduster
On be connected to the gas outlet of gas chamber by pipeline at least provided with an air inlet, the eddy flow mix the cylinder of wind deduster up to
An air inlet is equipped with less to connect by the gas outlet of pipeline and waste heat boiler；The eddy flow mixes the air inlet on wind deduster cylinder
It manages tangent with cylinder.
8. the processing system of coal gas containing zinc according to claim 1, it is characterised in that: the waste heat boiler and eddy flow mix wind and remove
Online ash removal device is equipped in dirt device；The waste heat boiler, eddy flow mix wind deduster and the bottom of bag filter is equipped with
Ash cellar.
9. a kind of processing method of coal gas containing zinc, which comprises the steps of:
1) control high temperature coal gas containing zinc enters waste heat boiler, and after exchanging heat with water, gas temperature is down to the first set temperature；Then
Wind deduster is mixed into eddy flow, is cooled to the second set temperature with the quick combination cooling of cooled coal gas from gas chamber, is mixed simultaneously
Coal gas after conjunction is mixed in eddy flow removes most of flue dust in wind deduster；The cooled coal gas amount for mixing wind deduster into eddy flow passes through rotation
The regulating valve between mixed wind deduster and gas chamber on pipeline is flowed to be adjusted；Then coal gas enters coal gas cooling device and is changed
Heat, the gas temperature after exchanging heat are down to third set temperature, enter back into bag filter refined dedusting, send finally by air-introduced machine
Enter gas chamber storage after entering gas cooler cooling；
2) control oxygen-eliminating device water inlet, water inlet enters back into coal gas cooling device after oxygen-eliminating device deoxygenation and carries out heat exchange, after heating
Water be sent into drum, provide heat transferring medium for residual heat boiler for exchanging heat；Water into coal gas cooling device is carried out by feed pump
It adjusts.
10. the processing method of coal gas containing zinc according to claim 9, it is characterised in that: step 1) mixes wind according to eddy flow is entered
The second set temperature after the coal gas of high temperature flow of deduster and the first set temperature and the cooling of coal gas combination cooling, calculates institute
The amount of cooled coal gas need to be introduced；The coal gas that eddy flow mixes the output of wind deduster sequentially enters air preheater and economizer exchanges heat,
Gas temperature after exchanging heat is down to third set temperature.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113124255A (en) * | 2021-04-16 | 2021-07-16 | 广东韶钢松山股份有限公司 | Hot air piping system maintenance cooling method |
| CN115823578A (en) * | 2022-11-24 | 2023-03-21 | 四川川锅锅炉有限责任公司 | Two-stage cyclone liquid slag-condensing boiler for burning high-alkali coal |
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| CN113124255A (en) * | 2021-04-16 | 2021-07-16 | 广东韶钢松山股份有限公司 | Hot air piping system maintenance cooling method |
| CN113124255B (en) * | 2021-04-16 | 2022-04-12 | 广东韶钢松山股份有限公司 | Hot air piping system maintenance cooling method |
| CN115823578A (en) * | 2022-11-24 | 2023-03-21 | 四川川锅锅炉有限责任公司 | Two-stage cyclone liquid slag-condensing boiler for burning high-alkali coal |
| CN115823578B (en) * | 2022-11-24 | 2023-11-17 | 四川川锅锅炉有限责任公司 | Two-stage cyclone liquid slag condensing boiler for burning high-alkali coal |
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