CN104548854A - Waste gas humidity adjusting device for recovering solvent - Google Patents
Waste gas humidity adjusting device for recovering solvent Download PDFInfo
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- CN104548854A CN104548854A CN201510039095.2A CN201510039095A CN104548854A CN 104548854 A CN104548854 A CN 104548854A CN 201510039095 A CN201510039095 A CN 201510039095A CN 104548854 A CN104548854 A CN 104548854A
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Abstract
The invention relates to a waste gas humidity adjusting device for recovering a solvent. The waste gas humidity adjusting device comprises a first section condenser, a second section gas-liquid separation device, a third section heater, a porous plate and a U-type water seal, wherein the porous plate is positioned in the second section gas-liquid separation device, the U-type water seal is positioned below the second section gas-liquid separation device, and both the first section condenser and the third section heater respectively adopt a fin-type air cooler. By adopting the waste gas humidity adjusting device, the humidity of waste gas can be adjusted to be in a state which is most favorable for adsorbing on active carbon, and the current situation that the active carbon cannot be adsorbed due to the excessively high humidity of the waste gas can be avoided.
Description
Technical field
The invention belongs to environmental technology field, particularly a kind of waste gas humidity adjusting device of solvent recovery.
Background technology
Mostly contain the gas of dimethyl formamide (DMF) and toluene mixture in the industrial waste gas of the industries such as synthetic leather, weaving, printing and dyeing simultaneously.Such as in areas such as the Changjiang river of China, the Delta of the Pearl River, be dispersed with the manufacturer of the industries such as a large amount of coatings, adhesive tape, containing a large amount of toluene in the initial rubber that these producers use, some content reaches more than 80%.In process of production, these toluene all with the form of waste gas directly discharged to air, concentration of emission is many at 2000-3000mg/m
3.According to measuring and calculating, a common coated fabric production line, every day, the toluene of discharge can reach 1-3t.According to investigations, such production line in the Changjiang river, Delta of Pearl River just reaches more than 1000.As the toluene of carcinogen in a large number discharged to air, not only severe contamination environment, and cause the significant wastage of resource.Thus how to reclaim DMF wherein and toluene cost-effectively, tool is of great significance.
At present, to the industrial waste gas containing DMF and toluene, be generally that a point two-stage absorption equipment absorbs toluene and DMF respectively.Toluene is then mainly by the charcoal absorption in active carbon groove.But from DMF water scrubber waste gas out, temperature is about 25-30 degree, and relative humidity 100%, toluene humidity is excessive has often caused charcoal absorption not.
Summary of the invention
The present invention is directed to above-mentioned the deficiencies in the prior art, a kind of waste gas humidity adjusting device of solvent recovery is provided.
The present invention is achieved by the following technical solutions:
A kind of waste gas humidity adjusting device of solvent recovery, comprise first paragraph condenser, second segment gas-liquid separation device, the 3rd section of heater, orifice plate, U-shaped water seal, described orifice plate is positioned at second segment gas-liquid separation device, and described U-shaped water seal is positioned at below second segment gas-liquid separation device.
From DMF water scrubber waste gas out, temperature is about 25-30 degree, relative humidity 100%, 12-15 degree cooling water temperature is adopted in described first paragraph condenser, waste gas is cooled to 20-25 degree, in waste gas, the temperature of moisture is down to below dew point, remove portion moisture, and then flow into described second segment gas-liquid separation device, wherein gas-liquid separation device adopts orifice plate as baffle plate, the water of condensation is derived from below, and use U-shaped water seal to prevent waste gas from discharging with water, finally flow into described 3rd section of heater, 50-80 degree hot water is adopted to heat up, be warming up to 35-40 degree, waste gas relative humidity is controlled below 50%.
As preferred embodiment, described first paragraph condenser adopts fin-type air cooler.
As preferred embodiment, described 3rd section of heater adopts fin-type air cooler.
As preferred embodiment, the aperture 10mm of described orifice plate, hole center distance 20mm.
As preferred embodiment, described U-shaped water seal height 90cm, diameter DN25-DN50.
Relative to prior art, the present invention has following advantage: the humidity of waste gas can be adjusted to and be conducive to charcoal absorption most, avoids the excessive situation having caused charcoal absorption not of waste gas humidity.
Accompanying drawing explanation
Fig. 1 is the structural representation of the waste gas humidity adjusting device of a kind of solvent recovery of the present invention.In figure, 1, first paragraph condenser; 2, second segment gas-liquid separation device; 3, orifice plate; 4, the 3rd section of heater; 5, U-shaped water seal.
Detailed description of the invention
Below in conjunction with detailed description of the invention, set forth the present invention further.
Embodiment 1:
As shown in Figure 1, a kind of waste gas humidity adjusting device of solvent recovery, comprise first paragraph condenser 1, second segment gas-liquid separation device 2, the 3rd section of heater 4, orifice plate 3, U-shaped water seal 5, described orifice plate 3 is positioned at second segment gas-liquid separation device 2, and described U-shaped water seal 5 is positioned at below second segment gas-liquid separation device 2.Wherein first paragraph condenser, the 3rd section of heater all adopt fin-type air cooler, the aperture 10mm of orifice plate, hole center distance 20mm, U-shaped water seal height 90cm, diameter DN25-DN50.
From DMF water scrubber waste gas out, temperature is about 25 degree, relative humidity 100%, 12-15 degree cooling water temperature is adopted in first paragraph condenser 1, waste gas is cooled to 20 degree, in waste gas, the temperature of moisture is down to below dew point, remove portion moisture, and then flow into described second segment gas-liquid separation device 2, wherein gas-liquid separation device adopts orifice plate 3 as baffle plate, the water of condensation is derived from below, and use U-shaped water seal 5 to prevent waste gas from discharging with water, finally flow into described 3rd section of heater 4, 50 degree of hot water are adopted to heat up, be warming up to 35 degree, waste gas relative humidity is controlled below 50%.
Embodiment 2:
From DMF water scrubber waste gas out, temperature is about 30 degree, relative humidity 100%, 12-15 degree cooling water temperature is adopted in first paragraph condenser 1, waste gas is cooled to 25 degree, in waste gas, the temperature of moisture is down to below dew point, remove portion moisture, and then flow into described second segment gas-liquid separation device 2, wherein gas-liquid separation device adopts orifice plate 3 as baffle plate, the water of condensation is derived from below, and use U-shaped water seal 5 to prevent waste gas from discharging with water, finally flow into described 3rd section of heater 4, 60 degree of hot water are adopted to heat up, be warming up to 35 degree, waste gas relative humidity is controlled below 50%.
Embodiment 3:
From DMF water scrubber waste gas out, temperature is about 30 degree, relative humidity 100%, 12-15 degree cooling water temperature is adopted in first paragraph condenser 1, waste gas is cooled to 23 degree, in waste gas, the temperature of moisture is down to below dew point, remove portion moisture, and then flow into described second segment gas-liquid separation device 2, wherein gas-liquid separation device adopts orifice plate 3 as baffle plate, the water of condensation is derived from below, and use U-shaped water seal 5 to prevent waste gas from discharging with water, finally flow into described 3rd section of heater 4, 80 degree of hot water are adopted to heat up, be warming up to 40 degree, waste gas relative humidity is controlled below 50%.
Obviously, the above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here cannot give exhaustive to all embodiments.Every belong to technical scheme of the present invention the apparent change of amplifying out or variation be still in the row of protection scope of the present invention.
Claims (5)
1. the waste gas humidity adjusting device of a solvent recovery, it is characterized in that, comprise first paragraph condenser, second segment gas-liquid separation device, the 3rd section of heater, orifice plate, U-shaped water seal, described orifice plate is positioned at second segment gas-liquid separation device, and described U-shaped water seal is positioned at below second segment gas-liquid separation device;
From DMF water scrubber waste gas out, temperature is about 25-30 degree, relative humidity 100%, 12-15 degree cooling water temperature is adopted in described first paragraph condenser, waste gas is cooled to 20-25 degree, in waste gas, the temperature of moisture is down to below dew point, remove portion moisture, and then flow into described second segment gas-liquid separation device, wherein gas-liquid separation device adopts orifice plate as baffle plate, the water of condensation is derived from below, and use U-shaped water seal to prevent waste gas from discharging with water, finally flow into described 3rd section of heater, 50-80 degree hot water is adopted to heat up, be warming up to 35-40 degree, waste gas relative humidity is controlled below 50%.
2. the waste gas humidity adjusting device of a kind of solvent recovery according to claim 1, is characterized in that, described first paragraph condenser adopts fin-type air cooler.
3. the waste gas humidity adjusting device of a kind of solvent recovery according to claim 1, is characterized in that, described 3rd section of heater adopts fin-type air cooler.
4. the waste gas humidity adjusting device of a kind of solvent recovery according to claim 1, is characterized in that, the aperture 10mm of described orifice plate, hole center distance 20mm.
5. the waste gas humidity adjusting device of a kind of solvent recovery according to claim 1, is characterized in that, described U-shaped water seal height 90cm, diameter DN25-DN50.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510039095.2A CN104548854A (en) | 2015-01-27 | 2015-01-27 | Waste gas humidity adjusting device for recovering solvent |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510039095.2A CN104548854A (en) | 2015-01-27 | 2015-01-27 | Waste gas humidity adjusting device for recovering solvent |
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| CN104548854A true CN104548854A (en) | 2015-04-29 |
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| CN201510039095.2A Pending CN104548854A (en) | 2015-01-27 | 2015-01-27 | Waste gas humidity adjusting device for recovering solvent |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110947248A (en) * | 2019-12-25 | 2020-04-03 | 北京京诚科林环保科技有限公司 | Multistage composite steam dehydration structure and heat accumulator |
| CN113577968A (en) * | 2021-08-25 | 2021-11-02 | 广州市帝东环保科技有限公司 | DMF condensation demisting recovery method |
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| GB803040A (en) * | 1955-11-05 | 1958-10-15 | Philips Nv | Improvements in or relating to heat exchangers for condensing constituents from a gas mixture |
| US4919696A (en) * | 1987-10-30 | 1990-04-24 | Mitsubishi Jukogyo Kabushiki Kaisha | Supercooling type mist eliminator apparatus |
| WO1995018664A1 (en) * | 1994-01-03 | 1995-07-13 | Monsanto Company | Method and apparatus for pollution control |
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| CN101992005A (en) * | 2009-08-28 | 2011-03-30 | 杰智环境科技股份有限公司 | High efficient organic solvent recovery unit and temperature/humidity control method thereof |
| CN102794087A (en) * | 2012-08-21 | 2012-11-28 | 杭州临安天城机电有限公司 | Energy efficient refrigeration large industrial dehumidifier |
| CN102921570A (en) * | 2011-08-12 | 2013-02-13 | 上海宝钢化工有限公司 | Gas-liquid separator with internal condensation |
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2015
- 2015-01-27 CN CN201510039095.2A patent/CN104548854A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB803040A (en) * | 1955-11-05 | 1958-10-15 | Philips Nv | Improvements in or relating to heat exchangers for condensing constituents from a gas mixture |
| US4919696A (en) * | 1987-10-30 | 1990-04-24 | Mitsubishi Jukogyo Kabushiki Kaisha | Supercooling type mist eliminator apparatus |
| WO1995018664A1 (en) * | 1994-01-03 | 1995-07-13 | Monsanto Company | Method and apparatus for pollution control |
| JP2003154229A (en) * | 2001-11-21 | 2003-05-27 | Shimizu Corp | Exhaust gas recycling and circulating apparatus |
| WO2008027156A1 (en) * | 2006-08-25 | 2008-03-06 | Exxonmobil Research And Engineering Company | Wet gas scrubbing process |
| CN101732884A (en) * | 2008-11-26 | 2010-06-16 | 华智系统科技股份有限公司 | Condensation device and method with high-efficiency temperature-reducing nucleation |
| CN101992005A (en) * | 2009-08-28 | 2011-03-30 | 杰智环境科技股份有限公司 | High efficient organic solvent recovery unit and temperature/humidity control method thereof |
| CN102921570A (en) * | 2011-08-12 | 2013-02-13 | 上海宝钢化工有限公司 | Gas-liquid separator with internal condensation |
| CN102794087A (en) * | 2012-08-21 | 2012-11-28 | 杭州临安天城机电有限公司 | Energy efficient refrigeration large industrial dehumidifier |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110947248A (en) * | 2019-12-25 | 2020-04-03 | 北京京诚科林环保科技有限公司 | Multistage composite steam dehydration structure and heat accumulator |
| CN113577968A (en) * | 2021-08-25 | 2021-11-02 | 广州市帝东环保科技有限公司 | DMF condensation demisting recovery method |
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Application publication date: 20150429 |