CN110339698A - A kind of processing method of boiler emission exhaust gas - Google Patents
A kind of processing method of boiler emission exhaust gas Download PDFInfo
- Publication number
- CN110339698A CN110339698A CN201910736743.8A CN201910736743A CN110339698A CN 110339698 A CN110339698 A CN 110339698A CN 201910736743 A CN201910736743 A CN 201910736743A CN 110339698 A CN110339698 A CN 110339698A
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- China
- Prior art keywords
- gas
- desulfurizing agent
- tank
- exhaust gas
- pipeline
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/30—Particle separators, e.g. dust precipitators, using loose filtering material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
Abstract
The invention discloses a kind of processing methods of boiler emission exhaust gas, the following steps are included: gas sampling, at several pipelines connection boiler exit gas mouth, the other end of pipeline connects gas sampling tank, carry out mixed collection, spray process, spray process is carried out to the gas entered in gas sampling tank using several spray nozzles, the present invention passes through setting desulfurizing agent tank, after spraying operation, still circulation flows to desulfurizing agent tank after desulfurizing agent use, some unused desulfurizing agents can continue to use, desulfurizing agent after use precipitates in desulfurizing agent tank, by the way that vapor can is arranged, contain the desulfurizing agent of steam state in the gas Jing Guo spray process, gas after heating is contacted with the biggish condenser pipe of the temperature difference, separate the desulfurizing agent of steam state, reduce the loss of desulfurizing agent, by designing the spaced active carbon net of staggered form, due to gas The contact area of body and active carbon net is larger, to improve filter effect, avoids the exhaust emission environment of discharge.
Description
Technical field
The present invention relates to exhaust-gas treatment field, in particular to a kind of processing method of boiler emission exhaust gas.
Background technique
Exhaust-gas treatment refers to that the exhaust gas generated for industrial site, factory floor is pre-processed before external discharge,
To reach the work for the standard that national exhaust gas externally discharges, general exhaust-gas treatment includes VOCs treatment, at dust exhaust gas
Reason, soda acid exhaust-gas treatment, peculiar smell exhaust-gas treatment and air sterilizing purification etc..
Contain sulfide in the exhaust gas of existing boiler emission, is discharged into air and will form acid rain, so that environment is polluted, it is existing
Having in the course of work for carrying out desulfurization process to exhaust gas, the use of desulfurizing agent is more frequent, after desulfurizing agent use, partial desulfurization agent
Can due to exhaust gas temperature or height and formed in the steam state molecule exhaust gas that is present in that treated so that desulfurizing agent uses rear loss late
It is larger, while the impurity of some granular-grades fails to exclude in time in desulfuration operations, is directly discharged into atmosphere and pollutes environment, is
This, it is proposed that a kind of processing method of boiler emission exhaust gas.
Summary of the invention
The main purpose of the present invention is to provide a kind of processing methods of boiler emission exhaust gas, can effectively solve background skill
The problems in art.
To achieve the above object, the technical scheme adopted by the invention is as follows:
A kind of processing method of boiler emission exhaust gas, comprising the following steps:
(1), gas sampling: at several pipelines connection boiler exit gas mouth, the other end of pipeline connects gas sampling tank,
Carry out mixed collection;
(2), spray process: carrying out spray process to the gas entered in gas sampling tank using several spray nozzles,
One end of spray nozzle is connected to desulfurizing agent tank, and liquid pump is configured in tank, and setting pipeline connects in the bottom end of tank body and desulfurizing agent tank
It is logical;
(3), air inducing discharges: connecting air inducing pipeline at gas sampling tank bottom end, and installs air-introduced machine at air inducing pipeline, meets
The other end of air piping carries out gas discharge;
(4), filtration treatment: the spaced active carbon net of staggered form is set in the outlet end of air inducing pipeline, adsorbs exhaust gas
In remaining particulate matter.
Preferably, in the step (1), several pipelines used in gas sampling are spiral shape hollow pipe, to exhaust gas
Cooling processing is carried out, length of hollow pipe is 5-10 meters at this.
Preferably, increase between the step (2) and step (3) and be provided with vapor can, by the gas of spray process
The gas of the period is passed into vapor can by the desulfurizing agent containing steam state through piping, and on the segment pipe surface, installation adds
Hot plate, and condenser pipe is installed in the inner wall of vapor can, the desulfurizing agent with condenser pipe of steam state contact to form liquid after heating, finally exist
The bottom end setting liquid pipe of vapor can is connected to desulfurizing agent tank.
Preferably, the gas temperature in the heating plate inside pipeline is 100-200 °, the condenser pipe surface gas
Temperature is 50-80 °.
Preferably, in the step (2), the concentration of desulfurizing agent is 1-20mg/L, and the gas flow rate in gas sampling tank
For 200-1000ml/min.
Preferably, in the step (3), the gas flow rate in air inducing pipeline is 200-1000ml/min.
Preferably, in the step (4), pipeline locating for active carbon net is connect with air inducing pipeline spiral, and active carbon net
Mesh diameter be 1-2mm.
Compared with prior art, the present invention provides a kind of processing methods of boiler emission exhaust gas, have following beneficial to effect
Fruit:
1, the present invention is by setting desulfurizing agent tank, and after spraying operation, still circulation flows to desulfurizing agent after desulfurizing agent use
Tank, some unused desulfurizing agents can continue to use, and the desulfurizing agent after use precipitates in desulfurizing agent tank, facilitates at concentration
Reason;
2, the present invention is by setting vapor can, containing the desulfurizing agent of steam state in the gas Jing Guo spray process, by adding
Hot gas, so that the desulfurizing agent of steam state be made to separate, comes back to desulfurization so that gas is contacted with the biggish condenser pipe of the temperature difference
In agent tank, reduce the loss of desulfurizing agent.
3, the present invention increases pipeline interior air-flow locating for active carbon net by the design spaced active carbon net of staggered form
Flow velocity, while the contact area of gas and active carbon net is larger, to improve filter effect, guarantees the bulky grain in gas
Impurity is filtered, and the exhaust emission environment of discharge is avoided.
Part is not directed in the device to be the same as those in the prior art or can be realized by using the prior art.
Detailed description of the invention
Fig. 1 is a kind of flow chart of the processing method of boiler emission exhaust gas of the present invention.
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.
In the description of the present invention, it is to be understood that, term " on ", "lower", "front", "rear", "left", "right", "top",
The orientation or positional relationship of the instructions such as "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, merely to just
In description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with
Specific orientation construction and operation, therefore be not considered as limiting the invention.
Embodiment 1:
A kind of processing method of boiler emission exhaust gas, comprising the following steps:
(1), gas sampling: at several pipelines connection boiler exit gas mouth, the other end of pipeline connects gas sampling tank,
Mixed collection is carried out, several pipelines used in gas sampling are spiral shape hollow pipe, cooling processing are carried out to exhaust gas, at this
The length of hollow pipe is 5-10 meters;
(2), spray process: carrying out spray process to the gas entered in gas sampling tank using several spray nozzles,
One end of spray nozzle is connected to desulfurizing agent tank, and liquid pump is configured in tank, and setting pipeline connects in the bottom end of tank body and desulfurizing agent tank
Logical, the concentration of desulfurizing agent is 5mg/L, and the gas flow rate in gas sampling tank is 200-1000ml/min;
Increase between gas sampling tank and air inducing pipeline and be provided with vapor can, by containing vapour in the gas of spray process
The gas of the period is passed into vapor can by the desulfurizing agent of state through piping, installs heating plate on the segment pipe surface, and
Condenser pipe is installed in the inner wall of vapor can, the desulfurizing agent with condenser pipe of steam state contact to form liquid after heating, finally in vapor can
Bottom end setting liquid pipe be connected to desulfurizing agent tank.
Gas temperature in heating plate inside pipeline is 100 °, and the temperature of condenser pipe surface gas is 50 °.
(3), air inducing discharges: connecting air inducing pipeline at gas sampling tank bottom end, and installs air-introduced machine at air inducing pipeline, meets
The other end of air piping carries out gas discharge, and the gas flow rate in air inducing pipeline is 200-1000ml/min;
(4), filtration treatment: the spaced active carbon net of staggered form is set in the outlet end of air inducing pipeline, adsorbs exhaust gas
In remaining particulate matter, pipeline locating for active carbon net is connect with air inducing pipeline spiral, and the mesh diameter of active carbon net is 1-
2mm。
Embodiment 2:
A kind of processing method of boiler emission exhaust gas, comprising the following steps:
(1), gas sampling: at several pipelines connection boiler exit gas mouth, the other end of pipeline connects gas sampling tank,
Mixed collection is carried out, several pipelines used in gas sampling are spiral shape hollow pipe, cooling processing are carried out to exhaust gas, at this
The length of hollow pipe is 5-10 meters;
(2), spray process: carrying out spray process to the gas entered in gas sampling tank using several spray nozzles,
One end of spray nozzle is connected to desulfurizing agent tank, and liquid pump is configured in tank, and setting pipeline connects in the bottom end of tank body and desulfurizing agent tank
Logical, the concentration of desulfurizing agent is 10mg/L, and the gas flow rate in gas sampling tank is 200-1000ml/min;
Increase between gas sampling tank and air inducing pipeline and be provided with vapor can, by containing vapour in the gas of spray process
The gas of the period is passed into vapor can by the desulfurizing agent of state through piping, installs heating plate on the segment pipe surface, and
Condenser pipe is installed in the inner wall of vapor can, the desulfurizing agent with condenser pipe of steam state contact to form liquid after heating, finally in vapor can
Bottom end setting liquid pipe be connected to desulfurizing agent tank.
Gas temperature in heating plate inside pipeline is 150 °, and the temperature of condenser pipe surface gas is 65 °.
(3), air inducing discharges: connecting air inducing pipeline at gas sampling tank bottom end, and installs air-introduced machine at air inducing pipeline, meets
The other end of air piping carries out gas discharge, and the gas flow rate in air inducing pipeline is 200-1000ml/min;
(4), filtration treatment: the spaced active carbon net of staggered form is set in the outlet end of air inducing pipeline, adsorbs exhaust gas
In remaining particulate matter, pipeline locating for active carbon net is connect with air inducing pipeline spiral, and the mesh diameter of active carbon net is 1-
2mm。
Embodiment 3:
A kind of processing method of boiler emission exhaust gas, comprising the following steps:
(1), gas sampling: at several pipelines connection boiler exit gas mouth, the other end of pipeline connects gas sampling tank,
Mixed collection is carried out, several pipelines used in gas sampling are spiral shape hollow pipe, cooling processing are carried out to exhaust gas, at this
The length of hollow pipe is 5-10 meters;
(2), spray process: carrying out spray process to the gas entered in gas sampling tank using several spray nozzles,
One end of spray nozzle is connected to desulfurizing agent tank, and liquid pump is configured in tank, and setting pipeline connects in the bottom end of tank body and desulfurizing agent tank
Logical, the concentration of desulfurizing agent is 20mg/L, and the gas flow rate in gas sampling tank is 200-1000ml/min;
Increase between gas sampling tank and air inducing pipeline and be provided with vapor can, by containing vapour in the gas of spray process
The gas of the period is passed into vapor can by the desulfurizing agent of state through piping, installs heating plate on the segment pipe surface, and
Condenser pipe is installed in the inner wall of vapor can, the desulfurizing agent with condenser pipe of steam state contact to form liquid after heating, finally in vapor can
Bottom end setting liquid pipe be connected to desulfurizing agent tank.
Gas temperature in heating plate inside pipeline is 200 °, and the temperature of condenser pipe surface gas is 80 °.
(3), air inducing discharges: connecting air inducing pipeline at gas sampling tank bottom end, and installs air-introduced machine at air inducing pipeline, meets
The other end of air piping carries out gas discharge, and the gas flow rate in air inducing pipeline is 200-1000ml/min;
(4), filtration treatment: the spaced active carbon net of staggered form is set in the outlet end of air inducing pipeline, adsorbs exhaust gas
In remaining particulate matter, pipeline locating for active carbon net is connect with air inducing pipeline spiral, and the mesh diameter of active carbon net is 1-
2mm。
It is respectively 89.89%, 90.88% and to the desulfurization degree of final discharge gas detection in above three embodiments
88.73%, while the desulfurization agent content in desulfurizing agent tank is respectively 1253 liters, 1255 liters and 1300 liters, in conclusion comparison is real
The concentration for applying desulfurizing agent in example is best in 10mg/L, while gas temperature and condenser pipe surface gas in heating plate inside pipeline
Temperature between the temperature difference it is bigger, it is more to recycle the resulting dosage that falls off.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (7)
1. a kind of processing method of boiler emission exhaust gas, which comprises the following steps:
(1), gas sampling: at several pipelines connection boiler exit gas mouth, the other end of pipeline connects gas sampling tank, carries out
Mixed collection;
(2), spray process: spray process is carried out to the gas entered in gas sampling tank using several spray nozzles, is being sprayed
One end of mouth is connected to desulfurizing agent tank, and liquid pump is configured in tank, is connected in the bottom end of tank body with setting pipeline in desulfurizing agent tank;
(3), air inducing discharges: connecting air inducing pipeline at gas sampling tank bottom end, and installs air-introduced machine at air inducing pipeline, manages windward
The other end in road carries out gas discharge;
(4), filtration treatment: the spaced active carbon net of staggered form is set in the outlet end of air inducing pipeline, is adsorbed residual in exhaust gas
The particulate matter stayed.
2. a kind of processing method of boiler emission exhaust gas according to claim 1, it is characterised in that: in the step (1),
Several pipelines used in gas sampling are spiral shape hollow pipe, carry out cooling processing to exhaust gas, the length of hollow pipe at this
Degree is 5-10 meters.
3. a kind of processing method of boiler emission exhaust gas according to claim 1, it is characterised in that: the step (2) with
Increase between step (3) and be provided with vapor can, by the desulfurizing agent containing steam state in the gas of spray process, by the period
Gas is passed into vapor can through piping, installs heating plate on the segment pipe surface, and install and condense in the inner wall of vapor can
Pipe, the desulfurizing agent with condenser pipe of steam state contact to form liquid after heating, and liquid pipe and desulfurizing agent finally is arranged in the bottom end of vapor can
Tank connection.
4. a kind of processing method of boiler emission exhaust gas according to claim 3, it is characterised in that: on the inside of the heating plate
Gas temperature in pipeline is 100-200 °, and the temperature of the condenser pipe surface gas is 50-80 °.
5. a kind of processing method of boiler emission exhaust gas according to claim 1, it is characterised in that: in the step (2),
The concentration of desulfurizing agent is 1-20mg/L, and the gas flow rate in gas sampling tank is 200-1000ml/min.
6. a kind of processing method of boiler emission exhaust gas according to claim 1, it is characterised in that: in the step (3),
Gas flow rate in air inducing pipeline is 200-1000ml/min.
7. a kind of processing method of boiler emission exhaust gas according to claim 1, it is characterised in that: in the step (4),
Pipeline locating for active carbon net is connect with air inducing pipeline spiral, and the mesh diameter of active carbon net is 1-2mm.
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CN201910736743.8A CN110339698A (en) | 2019-08-10 | 2019-08-10 | A kind of processing method of boiler emission exhaust gas |
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107497221A (en) * | 2017-07-19 | 2017-12-22 | 湖南沃邦环保科技有限公司 | A kind of exhaust gas purification system |
CN206823485U (en) * | 2017-05-04 | 2018-01-02 | 山东蓝博环保设备有限公司 | A kind of novel desulphurization denitration dehumidifying integrated apparatus |
CN207769383U (en) * | 2017-12-27 | 2018-08-28 | 南昌市中天环保设备有限公司 | A kind of flue gas desulfurization and denitrification device |
CN207838545U (en) * | 2017-11-28 | 2018-09-11 | 长兴普艾尔环境科技有限公司 | Multi-layer combined air purifier |
CN109882952A (en) * | 2017-12-05 | 2019-06-14 | 陕西百世恒环保科技发展有限公司 | A kind of efficient indoor air purification device |
CN209005537U (en) * | 2018-09-18 | 2019-06-21 | 抚顺齐隆化工有限公司 | A kind of flue gas desulphurization unit |
-
2019
- 2019-08-10 CN CN201910736743.8A patent/CN110339698A/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN206823485U (en) * | 2017-05-04 | 2018-01-02 | 山东蓝博环保设备有限公司 | A kind of novel desulphurization denitration dehumidifying integrated apparatus |
CN107497221A (en) * | 2017-07-19 | 2017-12-22 | 湖南沃邦环保科技有限公司 | A kind of exhaust gas purification system |
CN207838545U (en) * | 2017-11-28 | 2018-09-11 | 长兴普艾尔环境科技有限公司 | Multi-layer combined air purifier |
CN109882952A (en) * | 2017-12-05 | 2019-06-14 | 陕西百世恒环保科技发展有限公司 | A kind of efficient indoor air purification device |
CN207769383U (en) * | 2017-12-27 | 2018-08-28 | 南昌市中天环保设备有限公司 | A kind of flue gas desulfurization and denitrification device |
CN209005537U (en) * | 2018-09-18 | 2019-06-21 | 抚顺齐隆化工有限公司 | A kind of flue gas desulphurization unit |
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