CN111729462A - Exhaust gas treatment system and exhaust gas treatment method - Google Patents
Exhaust gas treatment system and exhaust gas treatment method Download PDFInfo
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- CN111729462A CN111729462A CN202010627998.3A CN202010627998A CN111729462A CN 111729462 A CN111729462 A CN 111729462A CN 202010627998 A CN202010627998 A CN 202010627998A CN 111729462 A CN111729462 A CN 111729462A
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- treatment system
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- acid mist
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- 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
Abstract
The invention provides a waste gas treatment system and a waste gas treatment method, which are used for treating acid mist waste gas generated by electroplating action, and the waste gas treatment system comprises: the electroplating device comprises an electroplating operation tank, a first treatment system, a second treatment system and a connecting pipeline, wherein the connecting pipeline is arranged between the first treatment system and the second treatment system; when the waste gas treatment system works, the first treatment system is closed, the second treatment system is started, and the connecting pipeline guides the acid mist waste gas generated by the circuit operation tank to the second treatment system. Wherein, the second processing system can directly handle the acid mist waste gas that the electroplating operation groove produced, closes first processing system simultaneously, is not influencing under the prerequisite of handling to acid mist waste gas treatment effect, is showing the energy consumption that has reduced exhaust treatment system, has effectively reduced the manufacturing cost of enterprise, has satisfied the production demand.
Description
Technical Field
The invention relates to a waste gas treatment system and a waste gas treatment method for electroplating operation, and belongs to the technical field of waste gas treatment.
Background
With the development of science and technology and the progress of times, people pay more and more attention to living environment and living space, the industrial development speed of China is faster and faster, with the high-speed development of chemical industry, machinery, electronics, metallurgy, electroplating, pharmacy, biology and other industries, harmful substances and gases generated in the production of the industries are paid more attention to, and the timely treatment and purification of the harmful substances and the harmful gases become the primary tasks of environment protection workers.
At present, the production line of the steel cord produced by my department comprises the following steps of carrying out surface treatment on the steel cord by adopting an electroplating process, wherein waste gas generated in the electroplating process mainly comprises the following steps: acid mist waste gas has pungent smell, and is directly discharged without treatment, so that the harm to the surrounding environment and production workers is large. Among them, cyanogen-containing waste gas, chromium-containing waste gas, dust-containing waste gas, etc. are generated in the electroplating production process, and acid mist is generated in the pickling process and the deplating process (nitric acid, sulfuric acid, hydrochloric acid), which not only affect the working environment of a workshop, but also pollute the surrounding environment, so that the waste gases need to be treated.
A schematic diagram of the functional blocks of a prior art exhaust treatment system is shown in fig. 1.
As shown in fig. 1, the acid mist waste gas treatment system comprises an operation tank 1, wherein acid mist waste gas generated in the electroplating process in the operation tank 1 enters a first purification tower 4 through a pipeline 2 and a pipeline 3 under the action of a first fan 5, and primary purification is completed in the first purification tower 4; the acid mist waste gas after the first purification enters a second purification tower 8 through a pipeline 6 and a pipeline 7 under the action of a second fan 9, and the second purification is completed in the second purification tower 8; and after the waste gas after the secondary purification reaches the discharge standard, the waste gas is discharged into an air outlet pipeline through a second fan 8 and is discharged into the environment.
Wherein, first fan 5, first purifying tower 4 and communicating pipe way 2 and pipeline 3 are the acid mist exhaust-gas treatment system of electroplating operation production line from the area respectively, but, in the in-service use, the acid mist waste gas after its processing does not accord with the exhaust emission standard, and the quantity of first purifying tower 4 is more, and first fan 5 needs long-time operation, causes this acid mist exhaust-gas treatment system's energy consumption height.
In view of the above, there is a need to optimize an existing acid mist exhaust gas treatment system, so as to reduce energy consumption of the existing exhaust gas treatment system as much as possible on the premise that the treated acid mist exhaust gas meets the emission standard.
Disclosure of Invention
Aiming at the technical problem, the invention provides an acid mist waste gas treatment system, which solves the problem that the treated acid mist waste gas can not meet the emission standard only through one-time purification, and simultaneously also reduces the energy consumption of the acid mist airplane treatment system.
The invention provides an exhaust gas treatment system for treating acid mist exhaust gas generated by electroplating, which comprises: the electroplating device comprises an electroplating operation tank, a first treatment system, a second treatment system and a connecting pipeline, wherein the connecting pipeline is arranged between the first treatment system and the second treatment system; when the waste gas treatment system works, the first treatment system is closed, the second treatment system is started, and the connecting pipeline guides the acid mist waste gas generated by the circuit operation tank to the second treatment system.
As an optional technical solution, the first processing system includes a first pipeline, the second processing system includes a fourth pipeline, and two ends of the connecting pipeline are respectively communicated with the first pipeline and the fourth pipeline.
As an optional technical solution, the first pipeline is disposed above the electroplating operation tank, and when the second processing system is started, the acid mist waste gas generated by the electroplating operation tank enters the first pipeline, is guided by the connecting pipeline, and enters the fourth pipeline.
As an optional technical solution, the second treatment system further includes a fifth pipeline, a second purification tower, a sixth pipeline and a second fan, which are sequentially communicated, wherein the acid mist waste gas in the fourth pipeline is discharged by the second fan after sequentially passing through the fifth pipeline, the second purification tower and the sixth pipeline.
As an optional technical solution, the first processing system further includes a second pipeline, a first purification tower, a third pipeline and a first fan, which are connected in sequence, wherein a first air valve is arranged between the second pipeline and the first pipeline, and a second air valve is arranged on the third pipeline.
As an optional technical solution, when the second processing system is started, the first air valve and the second air valve are closed.
As an optional technical scheme, the connecting pipeline is a corrosion-resistant plastic pipeline.
As an optional technical solution, the connecting pipeline is a polypropylene pipeline.
As an optional technical scheme, the inner diameter of the connecting pipeline is 250mm-300 mm.
The invention also provides an exhaust gas treatment method for treating acid mist exhaust gas by using the exhaust gas treatment system, which comprises the following steps: closing a first treatment system of the exhaust treatment systems and closing a first air valve and a second air valve in the first treatment system; starting a second treatment system in the waste gas treatment systems, and guiding the acid mist waste gas of the electroplating operation tank to flow towards a second purification tower of the second treatment system; detecting whether the purified acid mist waste gas discharged by a second fan of the second treatment system is in a standard discharge state; wherein, when the emission is in accordance with the emission guarantee, the acid mist waste gas after purification is discharged.
Compared with the prior art, the waste gas treatment system provided by the invention has the advantages that the pipeline between the first treatment system and the second treatment system is improved, so that the second treatment system can directly treat acid mist waste gas generated by the electroplating operation tank, and the first treatment system is closed, so that the energy consumption of the waste gas treatment system is obviously reduced, the production cost of enterprises is effectively reduced, and the production requirement is met on the premise of not influencing the treatment effect of the acid mist waste gas.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a functional block diagram of a prior art exhaust treatment system.
FIG. 2 is a functional block diagram of an exhaust treatment system in accordance with an embodiment of the present invention.
Detailed Description
In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 2, the exhaust gas treatment system 100 includes a plating operation tank 10, a first treatment system 101, and a second treatment system 102, wherein a connection pipe 103 is disposed between the first treatment system 101 and the second treatment system 102, and the connection pipe 103 guides the acid mist of the exhaust gas generated from the plating operation tank 10 to the second treatment system 102.
The first treatment system 101 includes a first pipe 20, a second pipe 30, a first purification tower 40, and a first fan 50, the first pipe 20 is located at the upper portion of the plating operation tank 10 and is communicated with the second pipe 30, the first purification tower 40 is formed at the other end of the second pipe 30, and the first fan 50 and the first purification tower 40 are connected by a third pipe 51. When the first fan 50 works, the acid mist generated by the electroplating operation tank 10 sequentially flows through the first pipeline 20 and the second pipeline 30, enters the first purification tower 40 for purification treatment, and is discharged by the first fan 50.
The second treatment system 102 includes a fourth pipeline 60, a fifth pipeline 70, a second purification tower 80 and a second fan 90, the fourth pipeline 60 is respectively communicated with the connection pipeline 103 and the fifth pipeline 70, and the second purification tower 80 is connected with the second fan 90 through a sixth pipeline 91.
In this embodiment, the two ends of the connecting pipeline 103 are respectively connected to the first pipeline 20 and the fourth pipeline 60, or the connecting pipeline 103 is connected to the first processing system 101 and the second processing system 102.
In the second processing system 102, when the second fan 90 is in operation, the acid mist waste gas generated by the electroplating operation tank 10 sequentially flows through the first pipeline 20, the connecting pipeline 103, the fourth pipeline 60 and the fifth pipeline 70, enters the second purification tower 80, and then enters the second fan 90 from the sixth pipeline 61 to be discharged.
For the purpose of energy saving, when the second treatment system 102 is operated, the first treatment system 101 is stopped, and the acid mist waste gas generated by the electroplating operation tank 10 is directly guided to the second treatment system 102 through the connecting pipeline 103, wherein the acid mist waste gas is only purified in the second purification tower 80 and then is discharged through the sixth pipeline 91 and the second fan 90, and the purified acid mist waste gas discharged from the second fan 90 is verified to meet the waste gas emission standard.
In addition, in order to avoid the acid mist waste gas generated by the electroplating operation tank 10 flowing to other pipelines of the first treatment system 101 when the second treatment system 102 is in operation, a first air valve 104 is disposed at the connection position of the first pipeline 20 and the second pipeline 30, a second air valve 105 is disposed on the third pipeline 51, and when the second treatment system 102 is in operation, the first air valve 104 and the second air valve 105 are respectively closed, so that the acid mist waste gas entering the first pipeline 20 is all guided to the second treatment system 102 through the connection pipeline 103 for purification treatment.
Therefore, for the exhaust gas treatment system 100, only the second treatment system 102 needs to be started and the first treatment system 101 needs to be closed, so that the acid mist exhaust gas generated by the electroplating operation tank 10 can be treated, and the treated acid mist exhaust gas can meet the requirement of exhaust gas emission. Wherein, the first treatment system 101 stops working, and the first purification tower 40 and the first fan 50 stop working, the energy consumption of the waste gas treatment system 100 can be significantly reduced.
In a preferred embodiment, the connecting pipe 103 is, for example, a corrosion-resistant plastic pipe, such as a PP pipe (polypropylene pipe).
In a preferred embodiment, the connecting line 103 has an internal diameter of 250mm to 300mm (mm being millimeters).
In a preferred embodiment, the second purification tower 80 includes a spray device that sprays the treatment liquid, and the treatment liquid and the acid mist exhaust gas undergo neutralization reaction, etc., thereby reducing the risk of the acid mist exhaust gas. In addition, the second purification tower 80 includes a plurality of purification devices therein, which perform different purification processes on the acid mist exhaust gas.
In a preferred embodiment, the purified acid mist exhaust gas discharged from the second fan 90 of the exhaust gas treatment system 100 is detected by a detection device for detecting the PH value of the purified exhaust gas. When the pH value meets the requirement, the discharge can be carried out.
In a preferred embodiment, the plating tank 10 is used to plate the surface of a metal wire with copper.
The present invention also provides an exhaust gas treatment method for treating acid mist exhaust gas by the exhaust gas treatment system 100, the exhaust gas treatment method comprising:
closing the first treatment system 101 in the exhaust treatment system 100 and closing the first damper 104 and the second damper 105;
turning on the second treatment system 102 in the waste gas treatment system 100, and guiding the acid mist waste gas of the electroplating operation tank 10 to flow towards the second purification tower 80 of the second treatment system 102; and
detecting whether the purified acid mist waste gas discharged by the second fan 90 of the second treatment system 102 is in a standard discharge state;
wherein, when the emission is in accordance with the emission guarantee, the acid mist waste gas after purification is discharged.
In summary, according to the waste gas treatment system provided by the invention, by improving the pipeline between the first treatment system 101 and the second treatment system 102, the second treatment system 102 can directly treat the acid mist generated by the electroplating operation tank 10, and the first treatment system 101 is closed, so that the energy consumption of the waste gas treatment system 100 is significantly reduced on the premise that the treatment effect of the acid mist on the waste gas is not affected, the production cost of an enterprise is effectively reduced, and the production requirement is met.
The present invention has been described in relation to the above embodiments, which are only exemplary of the implementation of the present invention. Furthermore, the technical features mentioned in the different embodiments of the present invention described above may be combined with each other as long as they do not conflict with each other. It should be noted that the disclosed embodiments do not limit the scope of the invention. Rather, it is intended that all such modifications and variations be included within the spirit and scope of this invention.
Claims (10)
1. An exhaust gas treatment system for treating acid mist exhaust gas generated by electroplating, the exhaust gas treatment system comprising:
the electroplating device comprises an electroplating operation tank, a first treatment system, a second treatment system and a connecting pipeline, wherein the connecting pipeline is arranged between the first treatment system and the second treatment system;
when the waste gas treatment system works, the first treatment system is closed, the second treatment system is started, and the connecting pipeline guides the acid mist waste gas generated by the circuit operation tank to the second treatment system.
2. The exhaust treatment system of claim 1, wherein the first treatment system includes a first conduit and the second treatment system includes a fourth conduit, and wherein the connecting conduit communicates between the first conduit and the fourth conduit at opposite ends thereof.
3. The exhaust gas treatment system of claim 2, wherein the first pipeline is disposed above the electroplating tank, and when the second treatment system is activated, the acid mist exhaust gas generated from the electroplating tank enters the first pipeline and is then guided through the connecting pipeline to enter the fourth pipeline.
4. The waste gas treatment system of claim 3, wherein the second treatment system further comprises a fifth pipeline, a second purification tower, a sixth pipeline and a second fan which are communicated in sequence, and wherein the acid mist waste gas in the fourth pipeline is discharged by the second fan after passing through the fifth pipeline, the second purification tower and the sixth pipeline in sequence.
5. The exhaust treatment system of claim 3, wherein the first treatment system further comprises a second pipeline, a first purification tower, a third pipeline and a first fan which are connected in sequence, wherein a first air valve is arranged between the second pipeline and the first pipeline, and a second air valve is arranged on the third pipeline.
6. The exhaust treatment system of claim 5, wherein the first damper and the second damper are closed when the second treatment system is activated.
7. The exhaust treatment system of claim 1, wherein the connecting line is a corrosion resistant plastic line.
8. The exhaust treatment system of claim 7, wherein the connecting line is a polypropylene line.
9. The exhaust gas treatment system of claim 1, wherein the connecting line has an inner diameter of 250mm to 300 mm.
10. An exhaust gas treatment method for treating acid mist exhaust gas by the exhaust gas treatment system according to claims 1 to 9, the exhaust gas treatment method comprising:
closing a first treatment system of the exhaust treatment systems and closing a first air valve and a second air valve in the first treatment system;
starting a second treatment system in the waste gas treatment systems, and guiding the acid mist waste gas of the electroplating operation tank to flow towards a second purification tower of the second treatment system; and
detecting whether the purified acid mist waste gas discharged by a second fan of the second treatment system is in a standard discharge state;
wherein, when the emission is in accordance with the emission guarantee, the acid mist waste gas after purification is discharged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010627998.3A CN111729462A (en) | 2020-07-03 | 2020-07-03 | Exhaust gas treatment system and exhaust gas treatment method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010627998.3A CN111729462A (en) | 2020-07-03 | 2020-07-03 | Exhaust gas treatment system and exhaust gas treatment method |
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| CN110141939A (en) * | 2019-06-10 | 2019-08-20 | 宁波市嘉隆节能环保科技有限公司 | A kind of multi-chamber waste gas treatment process catalytic exhaust processing equipment |
| CN212915050U (en) * | 2020-07-03 | 2021-04-09 | 江苏兴达钢帘线股份有限公司 | Exhaust gas treatment system |
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Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR893330A (en) * | 1942-03-21 | 1944-06-06 | Metallgesellschaft Ag | Process for washing away fluorine, chlorine and other catalyst poisons present in roasting gases intended to be electrically de-arsenic |
| CN202343086U (en) * | 2011-11-26 | 2012-07-25 | 青岛金源环境工程有限公司 | Dual-alkali wet method acid mist processor |
| CN103933845A (en) * | 2014-04-12 | 2014-07-23 | 哈尔滨工程大学 | System used for treating waste gas discharged by ships |
| KR20160108852A (en) * | 2015-03-09 | 2016-09-21 | (주) 비케이엠에스 | Air purifying apparatus with parallel connection type |
| CN107042055A (en) * | 2017-06-28 | 2017-08-15 | 苏州华商新能源有限公司 | A kind of exhaust treatment system |
| CN207591561U (en) * | 2017-10-11 | 2018-07-10 | 凡登（常州）新型金属材料技术有限公司 | Acid mist purifying scrubbing tower |
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