CN110068018A - A kind of waste gas treatment equipment and its processing method - Google Patents
A kind of waste gas treatment equipment and its processing method Download PDFInfo
- Publication number
- CN110068018A CN110068018A CN201910419328.XA CN201910419328A CN110068018A CN 110068018 A CN110068018 A CN 110068018A CN 201910419328 A CN201910419328 A CN 201910419328A CN 110068018 A CN110068018 A CN 110068018A
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- CN
- China
- Prior art keywords
- gas
- combustion chamber
- exhaust gas
- steam
- waste gas
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- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2206/00—Waste heat recuperation
- F23G2206/10—Waste heat recuperation reintroducing the heat in the same process, e.g. for predrying
Abstract
The invention discloses a kind of waste gas treatment equipments, including steam-type gas wash tower, gas heat exchanger and combustion chamber, steam-type gas wash tower top side is provided with exhaust gas inlet, the steam-type gas wash tower top other side is provided with waste gas outlet, the waste gas outlet is connected to flue gas leading, and the flue gas leading is connected to by gas heat exchanger with the preheating cavity of combustion chamber lower end；Burner and matched fuel gas conduit are provided in the preheating cavity, the preheating cavity upper end is provided with combustion chamber in communication, and the combustion chamber upper end is provided with the net gas outlet being connected to combustion chamber.Also disclose its method for handling exhaust gas.Exhaust gas has carried out four heating in the whole process, gradually heats up, it is made to have higher temperature in burning cavity combustion chamber, so that sufficiently decomposing goods burning in a relatively short period of time, improves the treatment effect of exhaust gas, while making full use of waste heat, energy conservation and environmental protection.
Description
Technical field
The present invention relates to a kind of exhaust-gas treatment field, specifically a kind of waste gas treatment equipment and its processing method.
Background technique
Nitriding process oneself through becoming the conventional process in the fields such as metallurgical processing, however commonly nitridation furnace apparatus use it is rear residual
There are a part of exhaust gas, for example, common exhaust gas has ammonia, need to carry out exhaust-gas treatment.
In existing nitriding furnace waste gas treatment process, exhaust gas discharges after usually being handled by fuel gas buring mode.But due to
Ammonia decomposition temperature is very high, and in actual treatment process, the time that exhaust gas heats up in combustion furnace is shorter, usually can not be complete
It decomposes or burns, tend to have remaining ammonia emission into ambient enviroment；In addition existing exhaust gas is directly arranged after combustion furnace burning
Out, causing it to contain higher heat can not utilize, and energy-saving and environment-friendly requirement is not achieved.
Summary of the invention
Technical problem to be solved by the present invention lies in: existing waste gas treatment equipment poor processing effect, and can not be remaining
Energy-saving and environment-friendly requirement is not achieved in heat utilization.
In order to solve the above technical problems, the invention provides the following technical scheme:
A kind of waste gas treatment equipment, including steam-type gas wash tower, gas heat exchanger and combustion chamber, the steam-type gas wash tower
Top side is provided with exhaust gas inlet, and the steam-type gas wash tower top other side is provided with waste gas outlet, the waste gas outlet
It is connected to flue gas leading, the flue gas leading is connected to by gas heat exchanger with the preheating cavity of combustion chamber lower end；It is set in the preheating cavity
It is equipped with burner and matched fuel gas conduit, the preheating cavity upper end is provided with combustion chamber in communication, the combustion chamber
Upper end is provided with the net gas outlet being connected to combustion chamber, and the net gas outlet is connected to fresh-air duct, and the fresh-air duct passes through gas
Heat exchanger is connected to snakelike heat exchange tube one end of steam-type dedusting tower bottom, and the snakelike heat exchange tube other end is prolonged by exhaust pipe
It extends to outside steam-type gas wash tower.
As a further solution of the present invention: steam-type gas wash tower lower end is provided with scavenging solution, the snakelike heat exchange
Pipe is located in scavenging solution, provides the energy of its evaporation by snakelike heat exchange tube for scavenging solution.
As further scheme of the invention: the choke plate of multiple interlaced arrangements is provided in the waste gas outlet, it is right
Exhaust gas carries out reduction of speed, keeps its residence time in steam-type gas wash tower elongated, to improve dust removing effects.
As further scheme of the invention: being provided between choke plate and flue gas leading in the waste gas outlet dry
The exhaust gas after dedusting is dried in dry device.
As further scheme of the invention: being provided with insulating layer on the outside of the combustion chamber, for keeping the temperature, further drop
Low energy consumption, to realize energy conservation and environmental protection.
As further scheme of the invention: every layer of the insulating layer is built using alumina-silicate ceramic fibre felt.
A kind of processing method of waste gas treatment equipment is also disclosed, method the following steps are included:
1) steam-type gas wash tower is introduced exhaust gas by exhaust gas inlet, removing for exhaust gas is completed under the action of high-temperature vapor
Dirt and primary heating；
2) exhaust gas after dedusting enters gas heat exchanger, and the preheating cavity of combustion chamber is entered after reheating；
3) combustion gas primary combustion in preheating cavity of exhaust gas and fuel gas conduit conveying, the heat that realization is heated three times, while being burnt
Amount can also heat combustion chamber；
4) unburned complete exhaust gas enters combustion chamber together with combustion gas, is purified after full combustion at high operating temperatures
Exhaust gas after from net gas export be discharged；
5) gas of the purification containing higher temperature successively passes through gas heat exchanger and snakelike heat exchange tube, is step 1) and step
It is rapid 2) in heating twice provide heat.
Compared with prior art, the beneficial effects of the present invention are: 1) exhaust gas has carried out four heating in the whole process, by
Step heating makes it have higher temperature in burning cavity combustion chamber, so that sufficiently decomposing goods burning in a relatively short period of time, mentions
The treatment effect of high exhaust gas；
2) exhaust gas mode of steam before burning is dusted, and further increases its treatment effect；
3) purified exhaust gas passes sequentially through gas heat exchanger and snakelike heat exchange tube heat exchange, adds for the exhaust gas twice of the present apparatus
Heat provides energy, realizes UTILIZATION OF VESIDUAL HEAT IN, and then reach energy-saving and environment-friendly effect；
4) the heating sequence of the warm down sequence of purified exhaust gas and exhaust gas matches, and realizes the gradually heating of exhaust gas.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of embodiment.
In figure: 1- steam-type gas wash tower, 11- exhaust gas inlet, 12- waste gas outlet, 13- choke plate, 14- drying device, 15-
Snakelike heat exchange tube, 16- exhaust pipe, 2- gas heat exchanger, 21- flue gas leading, 22- fresh-air duct, the combustion chamber 3-, 31- preheating cavity, 32-
Burner, 33- fuel gas conduit, 34- combustion chamber, the net gas outlet 35-.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, a kind of waste gas treatment equipment, including steam-type gas wash tower 1, gas heat exchanger 2 and combustion chamber 3, institute
It states 1 top side of steam-type gas wash tower and is provided with exhaust gas inlet 11, the 1 top other side of steam-type gas wash tower is provided with exhaust gas
Outlet 12, the waste gas outlet 12 is connected to flue gas leading 21, and the flue gas leading 21 passes through gas heat exchanger 2 and 3 lower end of combustion chamber
Preheating cavity 31 be connected to；Burner 32 and matched fuel gas conduit 33, the preheating cavity 31 are provided in the preheating cavity 31
Upper end is provided with combustion chamber 34 in communication, and 3 upper end of combustion chamber is provided with the net gas outlet 35 being connected to combustion chamber 34,
The net gas outlet 35 is connected to fresh-air duct 22, and the fresh-air duct 22 passes through gas heat exchanger 2 and 1 bottom of steam-type gas wash tower
The connection of 15 one end of snakelike heat exchange tube, 15 other end of snakelike heat exchange tube are extended to outside steam-type gas wash tower 1 by exhaust pipe 16.
Alternatively: 1 lower end of steam-type gas wash tower is provided with scavenging solution, and the snakelike heat exchange tube 15 is located at
In scavenging solution, the energy of its evaporation is provided for scavenging solution by snakelike heat exchange tube 15.
Alternatively: the choke plate 13 of multiple interlaced arrangements is provided in the waste gas outlet 12, to exhaust gas into
Row reduction of speed keeps its residence time in steam-type gas wash tower 1 elongated, to improve dust removing effects.
Alternatively: dry dress is provided between choke plate 13 and flue gas leading 21 in the waste gas outlet 12
14 are set, the exhaust gas after dedusting is dried.
Alternatively: it is provided with insulating layer on the outside of the combustion chamber 3, for keeping the temperature, further decreases energy consumption, from
And realize energy conservation and environmental protection.
Alternatively: every layer of the insulating layer is built using alumina-silicate ceramic fibre felt.
A kind of processing method of waste gas treatment equipment is also disclosed, method the following steps are included:
1) steam-type gas wash tower 1 is introduced exhaust gas by exhaust gas inlet 11, completes exhaust gas under the action of high-temperature vapor
Dedusting and primary heating；
2) exhaust gas after dedusting enters gas heat exchanger 2, and the preheating cavity 31 of combustion chamber 3 is entered after reheating；
3) combustion gas primary combustion in preheating cavity 31 that exhaust gas and fuel gas conduit 33 convey, realization are heated three times, are burnt simultaneously
Heat combustion chamber 34 can also be heated；
4) unburned complete exhaust gas enters combustion chamber 34 together with combustion gas, obtains after full combustion at high operating temperatures net
From 35 discharge of net gas outlet after the exhaust gas of change；
5) gas of the purification containing higher temperature successively passes through gas heat exchanger 2 and snakelike heat exchange tube 15, is step 1)
And the heating twice in step 2) provides heat.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (7)
1. a kind of waste gas treatment equipment, which is characterized in that including steam-type gas wash tower, gas heat exchanger and combustion chamber, the steaming
Vapour formula gas wash tower top side is provided with exhaust gas inlet, and the steam-type gas wash tower top other side is provided with waste gas outlet, institute
It states waste gas outlet to be connected to flue gas leading, the flue gas leading is connected to by gas heat exchanger with the preheating cavity of combustion chamber lower end；It is described
Burner and matched fuel gas conduit are provided in preheating cavity, the preheating cavity upper end is provided with combustion chamber in communication,
The combustion chamber upper end is provided with the net gas outlet being connected to combustion chamber, and the net gas outlet is connected to fresh-air duct, the net gas
Pipe is connected to by gas heat exchanger with snakelike heat exchange tube one end of steam-type dedusting tower bottom, and the snakelike heat exchange tube other end is logical
Exhaust pipe is crossed to extend to outside steam-type gas wash tower.
2. waste gas treatment equipment according to claim 1, which is characterized in that steam-type gas wash tower lower end is provided with only
Change liquid, the snakelike heat exchange tube is located in scavenging solution.
3. waste gas treatment equipment according to claim 1, which is characterized in that be provided with multiple interlock in the waste gas outlet
The choke plate of arrangement.
4. waste gas treatment equipment according to claim 3, which is characterized in that be located at choke plate in the waste gas outlet and give up
Drying device is provided between tracheae.
5. waste gas treatment equipment according to claim 1, which is characterized in that be provided with insulating layer on the outside of the combustion chamber.
6. waste gas treatment equipment according to claim 5, which is characterized in that every layer of the insulating layer is made pottery using alumina silicate
Porcelain fibrofelt is built.
7. the processing method of waste gas treatment equipment described in -6 any one according to claim 1, which is characterized in that its method packet
Include following steps:
1) steam-type gas wash tower is introduced exhaust gas by exhaust gas inlet, under the action of high-temperature vapor complete exhaust gas dedusting and
Primary heating；
2) exhaust gas after dedusting enters gas heat exchanger, and the preheating cavity of combustion chamber is entered after reheating；
3) combustion gas primary combustion in preheating cavity of exhaust gas and fuel gas conduit conveying, realization are heated three times, while the heat to burn is also
Combustion chamber can be heated；
4) unburned complete exhaust gas enters combustion chamber together with combustion gas, and what is be purified after full combustion at high operating temperatures is useless
It exports and is discharged from net gas after gas；
5) exhaust gas of the purification containing higher temperature successively passes through gas heat exchanger and snakelike heat exchange tube, is step 1) and step 2)
In heating twice provide heat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910419328.XA CN110068018A (en) | 2019-05-20 | 2019-05-20 | A kind of waste gas treatment equipment and its processing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910419328.XA CN110068018A (en) | 2019-05-20 | 2019-05-20 | A kind of waste gas treatment equipment and its processing method |
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| Publication Number | Publication Date |
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| CN110068018A true CN110068018A (en) | 2019-07-30 |
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| CN201910419328.XA Pending CN110068018A (en) | 2019-05-20 | 2019-05-20 | A kind of waste gas treatment equipment and its processing method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113413740A (en) * | 2021-06-30 | 2021-09-21 | 福建省利邦环境工程有限公司 | Plastic regeneration waste gas purification treatment device and working method thereof |
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|---|---|---|---|---|
| CN101053757A (en) * | 2007-01-31 | 2007-10-17 | 黎宁 | Combined gas purifier |
| JP2010236793A (en) * | 2009-03-31 | 2010-10-21 | Sintokogio Ltd | Method of controlling operation of regenerative thermal oxidizer |
| CN106765218A (en) * | 2016-12-01 | 2017-05-31 | 广州市祈雅典锅炉有限公司 | VOCs waste gas comprehensive regulation heat energy utilization equipment |
| CN108117122A (en) * | 2016-11-29 | 2018-06-05 | 中国石油化工股份有限公司 | A kind of processing method and processing unit of sodium method flue gas desulfurization waste-water |
| CN108844082A (en) * | 2018-05-16 | 2018-11-20 | 绍兴市鼎泰节能环保科技有限公司 | A kind of emission-control equipment |
| CN109395496A (en) * | 2018-12-19 | 2019-03-01 | 曲靖云能投新能源发电有限公司 | A kind of gas cleaning of garbage incinerating power plant and afterheat utilizing system |
| DE102018128123A1 (en) * | 2017-11-10 | 2019-05-16 | Kaprec Gmbh | Method for cleaning the exhaust air of a multi-field treatment chamber of a heat treatment plant for textile webs with integrated thermal afterburning |
| CN210088881U (en) * | 2019-05-20 | 2020-02-18 | 合肥华威药业有限公司 | Waste gas treatment equipment |
-
2019
- 2019-05-20 CN CN201910419328.XA patent/CN110068018A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101053757A (en) * | 2007-01-31 | 2007-10-17 | 黎宁 | Combined gas purifier |
| JP2010236793A (en) * | 2009-03-31 | 2010-10-21 | Sintokogio Ltd | Method of controlling operation of regenerative thermal oxidizer |
| CN108117122A (en) * | 2016-11-29 | 2018-06-05 | 中国石油化工股份有限公司 | A kind of processing method and processing unit of sodium method flue gas desulfurization waste-water |
| CN106765218A (en) * | 2016-12-01 | 2017-05-31 | 广州市祈雅典锅炉有限公司 | VOCs waste gas comprehensive regulation heat energy utilization equipment |
| DE102018128123A1 (en) * | 2017-11-10 | 2019-05-16 | Kaprec Gmbh | Method for cleaning the exhaust air of a multi-field treatment chamber of a heat treatment plant for textile webs with integrated thermal afterburning |
| CN108844082A (en) * | 2018-05-16 | 2018-11-20 | 绍兴市鼎泰节能环保科技有限公司 | A kind of emission-control equipment |
| CN109395496A (en) * | 2018-12-19 | 2019-03-01 | 曲靖云能投新能源发电有限公司 | A kind of gas cleaning of garbage incinerating power plant and afterheat utilizing system |
| CN210088881U (en) * | 2019-05-20 | 2020-02-18 | 合肥华威药业有限公司 | Waste gas treatment equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113413740A (en) * | 2021-06-30 | 2021-09-21 | 福建省利邦环境工程有限公司 | Plastic regeneration waste gas purification treatment device and working method thereof |
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