CN104107616A - NMP (N-Methyl Pyrrolidone) gas treating equipment and treating process thereof - Google Patents
NMP (N-Methyl Pyrrolidone) gas treating equipment and treating process thereof Download PDFInfo
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- CN104107616A CN104107616A CN201410398650.6A CN201410398650A CN104107616A CN 104107616 A CN104107616 A CN 104107616A CN 201410398650 A CN201410398650 A CN 201410398650A CN 104107616 A CN104107616 A CN 104107616A
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Abstract
The invention discloses NMP gas treating equipment and a treating process thereof. The equipment is formed by sequentially connecting a gas intake fan, a gas-gas exchanger, a pre-cooler, a first surface cooler, a second surface cooler, a gas and liquid separating membrane, a first ventilating fan, first-stage water filter equipment, a second ventilating fan, second-stage water filter equipment and an exhausting fan through a pipeline, wherein a liquid outlet of the gas and liquid separating membrane is communicated with an NMP solution collecting cylinder. The treating equipment has the beneficial effects that normal-temperature water is used for cooling for gas and liquid separation according to the problems of the prior art and the characteristics of an NMP solvent and then waste gas is filtered by using water so that a recycling device and a recycling process achieve an zero emission effect and the PM2.5 of the exhausted air is even lower than the national PM2.5 standards.
Description
technical field
The present invention relates to a kind of NMP gas processing device and treatment process.
Background technology
It is colourless transparent liquid that N-methyl pyrrole irons alkane ketone (NMP), 202 DEG C of boiling points, and 95 DEG C of flash-points, can be miscible with water, is dissolved in ether, acetone and various organic solvent, slightly ammonia taste, stable chemical performance, does not corrode carbon steel, aluminium, and copper pin is corrosive.There is viscosity low, chemical stability and Heat stability is good, polarity is high, by sending out, property is low, can with the unlimited advantage such as miscible of water and many organic solvents.
NMP gas recovery unit on market now, commonplace has two kinds: be exactly 1, to reclaim through supercooling or spray, condensation is got off how many just how many, and then waste gas directly discharges, and does not reach environmental requirement.2, runner reclaims, organic exhaust gas is through cooling condensation, then waste gas is through the absorption of VOC runner, and then through regeneration heating attaching out, carry out again cooling recovery, this technology energy consumption is high, generally be coated with 5000H/ ㎜ Wind Coverage Calculation by market, more than its energy consumption is not less than 40KW, exhaust emissions, because NMP has erosion effect to wheel, the effect of general new runner in 6 months is all right, later just not all right, if changed every half a year once, the very high impact also causing manufacturer of operating cost, the tail gas of above two kinds is at a loss for words to put and does not install active overanxious net additional, or water goes overanxious, so atmosphere is polluted.
Summary of the invention
Technical problem to be solved by this invention is, a kind of NMP gas processing device and treatment process are provided, and overcomes the defect of prior art.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of NMP gas processing device, is linked in sequence and is formed by pipeline by air intake blower fan, gas gas interchanger, forecooler, the first surface cooler, the second surface cooler, gas-liquid separation membrane, the first breeze fan, one-level water filtration device, the second breeze fan, two-stage water filtering equipment, exhaust fan; The liquid outlet of gas-liquid separation membrane is communicated with nmp solution collection cylinder.
Preferably, the first surface cooler, the second surface cooler connect cooling tower by water pump.
The treatment process of described NMP gas processing device, comprises the following steps:
The waste gas that exhaust air discharge equipment is discharged enters gas gas interchanger by air intake blower fan, in gas gas interchanger with by the new wind that enters exhaust air discharge equipment work, carries out heat exchange;
Cooled waste gas, by forecooler, the first surface cooler, the second surface cooler, is further lowered the temperature;
Waste gas is by gas-liquid separation membrane, and NMP liquid cools is condensed and separated with waste gas, flows into nmp solution collection cylinder;
Waste gas, by the first breeze fan and the pressurization of the second breeze fan, by one-level water filtration device and two-stage water filtering equipment, is discharged by exhaust fan successively.
Beneficial effect of the present invention is, for the problem of prior art and the characteristic of nmp solvent, adopts normal-temperature water cooling, gas-liquid separation, water filtering exhaust again, reaches retracting device and the recovery process of zero-emission effect, and the standard of the PM2.5 of air ratio country of discharge is also low.
brief description of the drawings
Fig. 1 is equipment principle schematic diagram of the present invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, further set forth the present invention.
As shown in Figure 1, a kind of NMP gas processing device, is linked in sequence and is formed by pipeline by air intake blower fan 1, gas gas interchanger 2, forecooler 3, the first surface cooler 4, the second surface cooler 5, gas-liquid separation membrane 6, the first breeze fan, one-level water filtration device 7, the second breeze fan, two-stage water filtering equipment 8, exhaust fan; The liquid outlet of gas-liquid separation membrane is communicated with nmp solution collection cylinder 9.
Wherein, the first surface cooler, the second surface cooler connect cooling tower 10 by water pump, and pump handle cooling water is given surface cooler circulation and used.
The treatment process of described NMP gas processing device, comprises the following steps:
The waste gas that exhaust air discharge equipment 11 is discharged enters gas gas interchanger by air intake blower fan, in gas gas interchanger with by the new wind that enters exhaust air discharge equipment work, carries out heat exchange;
Cooled waste gas, by forecooler, the first surface cooler, the second surface cooler, is further lowered the temperature, and forecooler is to utilizing machine to lower the temperature to waste gas herein, and latter two surface cooler is that the cooling tower by connecting is lowered the temperature to gas.
Waste gas is by gas-liquid separation membrane, and NMP liquid cools is condensed and separated with waste gas, flows into nmp solution collection cylinder;
Waste gas, by the first breeze fan and the pressurization of the second breeze fan, by one-level water filtration device and two-stage water filtering equipment, is discharged by exhaust fan successively.One-level water filtration device and two-stage water filtering equipment are herein exactly pond, utilize the water-soluble of NMP gas, absorb remaining NMP gas in waste gas.
The present invention ejects exhaust air discharge equipment the gas that contains NMP and delivers to gas-gas interchanger through exhausting (its effect can be heated fresh wind and be used to exhaust air discharge equipment working cycles, can be energy-conservation, also EGT can be reduced) lower the temperature through surface cooler again, produce the temperature difference, the NMP of gaseous state is transformed into liquid, pass through again gas-liquid separation membrane, gas and solution are separated, NMP liquid flows into collection cylinder, then gas again through synthetic water filter and tap water filter (its principle with at ordinary times smoking people, with water pipe, the tar in tobacco is filtered the same), airborne other impurity powder is filtered out, reach zero emission requirement.
Present device is pressed 5000H/ ㎜ air quantity, and energy consumption is below 12KW.The advantage of this equipment 1. gas-gas interchanger heat exchange power, in 30KW left and right, can also be accomplished heat exchange area larger according to the space in workshop.2. the vent gas treatment of this equipment, water goes to filter and can cut operating costs, and fault rate is very low, and tail gas can be in line, reaches zero-emission, and the water of two stage treatment also can be in line, (water that does not also have people to wash the dishes with liquid detergent in life because of its content is high)
More than show and described general principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and description, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (3)
1. a NMP gas processing device, it is characterized in that, be linked in sequence and form by pipeline by air intake blower fan, gas gas interchanger, forecooler, the first surface cooler, the second surface cooler, gas-liquid separation membrane, the first breeze fan, one-level water filtration device, the second breeze fan, two-stage water filtering equipment, exhaust fan; The liquid outlet of gas-liquid separation membrane is communicated with nmp solution collection cylinder.
2. NMP gas processing device as claimed in claim 1, is characterized in that, the first surface cooler, the second surface cooler connect cooling tower by water pump.
3. the treatment process of NMP gas processing device described in claim 1, comprises the following steps:
The waste gas that exhaust air discharge equipment is discharged enters gas gas interchanger by air intake blower fan, in gas gas interchanger with by the new wind that enters exhaust air discharge equipment work, carries out heat exchange;
Cooled waste gas, by forecooler, the first surface cooler, the second surface cooler, is further lowered the temperature;
Waste gas is by gas-liquid separation membrane, and NMP liquid cools is condensed and separated with waste gas, flows into nmp solution collection cylinder;
Waste gas, by the first breeze fan and the pressurization of the second breeze fan, by one-level water filtration device and two-stage water filtering equipment, is discharged by exhaust fan successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410398650.6A CN104107616A (en) | 2014-08-14 | 2014-08-14 | NMP (N-Methyl Pyrrolidone) gas treating equipment and treating process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410398650.6A CN104107616A (en) | 2014-08-14 | 2014-08-14 | NMP (N-Methyl Pyrrolidone) gas treating equipment and treating process thereof |
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| Publication Number | Publication Date |
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| CN104107616A true CN104107616A (en) | 2014-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410398650.6A Pending CN104107616A (en) | 2014-08-14 | 2014-08-14 | NMP (N-Methyl Pyrrolidone) gas treating equipment and treating process thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105148684A (en) * | 2015-08-15 | 2015-12-16 | 慈溪市赛思德环保科技有限公司 | Novel spray equipment |
| CN108057311A (en) * | 2018-01-26 | 2018-05-22 | 叶大煜 | A kind of NMP gas processing devices and its treatment process |
| CN111762503A (en) * | 2020-07-07 | 2020-10-13 | 广州景佳电子有限公司 | Part washs packaging production line's layering transmission |
| CN112691498A (en) * | 2020-12-14 | 2021-04-23 | 辽宁师范大学 | Processing apparatus that multiple exhaust-gas treatment technology coupling was used jointly |
| CN113786701A (en) * | 2021-09-03 | 2021-12-14 | 深圳市德尼环保技术有限公司 | Method and system for recovering NMP in lithium ion battery coating procedure |
| CN113877410A (en) * | 2020-07-02 | 2022-01-04 | 大连爱德摩设备制造有限公司 | VOCs (volatile organic compounds) and odor treatment method for industrial sewage gathering and transportation system |
| CN114307560A (en) * | 2020-10-09 | 2022-04-12 | 中石化南京化工研究院有限公司 | Method for recovering NMP in waste gas |
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| CN101543683A (en) * | 2009-04-07 | 2009-09-30 | 天津力神电池股份有限公司 | Device and method for reclaiming NMP in working procedure of coating lithium ion cell |
| KR20100113438A (en) * | 2009-04-13 | 2010-10-21 | (주)키이엔지니어링 | Device and method for recovering nmp from exhaust gas |
| CN102085421A (en) * | 2010-12-20 | 2011-06-08 | 江苏英泰电子有限公司 | Waste gas recovery device of lithium battery pole piece coating apparatus |
| CN103084043A (en) * | 2011-11-03 | 2013-05-08 | 黄安元 | High-efficiency spraying solvent recovery system and process thereof |
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| CN101543683A (en) * | 2009-04-07 | 2009-09-30 | 天津力神电池股份有限公司 | Device and method for reclaiming NMP in working procedure of coating lithium ion cell |
| KR20100113438A (en) * | 2009-04-13 | 2010-10-21 | (주)키이엔지니어링 | Device and method for recovering nmp from exhaust gas |
| CN102085421A (en) * | 2010-12-20 | 2011-06-08 | 江苏英泰电子有限公司 | Waste gas recovery device of lithium battery pole piece coating apparatus |
| CN103084043A (en) * | 2011-11-03 | 2013-05-08 | 黄安元 | High-efficiency spraying solvent recovery system and process thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105148684A (en) * | 2015-08-15 | 2015-12-16 | 慈溪市赛思德环保科技有限公司 | Novel spray equipment |
| CN108057311A (en) * | 2018-01-26 | 2018-05-22 | 叶大煜 | A kind of NMP gas processing devices and its treatment process |
| CN113877410A (en) * | 2020-07-02 | 2022-01-04 | 大连爱德摩设备制造有限公司 | VOCs (volatile organic compounds) and odor treatment method for industrial sewage gathering and transportation system |
| CN113877410B (en) * | 2020-07-02 | 2024-05-07 | 大连爱德摩设备制造有限公司 | VOCs (volatile organic compounds) and odor treatment method for industrial sewage collection and transportation system |
| CN111762503A (en) * | 2020-07-07 | 2020-10-13 | 广州景佳电子有限公司 | Part washs packaging production line's layering transmission |
| CN114307560A (en) * | 2020-10-09 | 2022-04-12 | 中石化南京化工研究院有限公司 | Method for recovering NMP in waste gas |
| CN114307560B (en) * | 2020-10-09 | 2022-11-22 | 中石化南京化工研究院有限公司 | Method for recovering NMP in waste gas |
| CN112691498A (en) * | 2020-12-14 | 2021-04-23 | 辽宁师范大学 | Processing apparatus that multiple exhaust-gas treatment technology coupling was used jointly |
| CN113786701A (en) * | 2021-09-03 | 2021-12-14 | 深圳市德尼环保技术有限公司 | Method and system for recovering NMP in lithium ion battery coating procedure |
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Application publication date: 20141022 |