CN103101985A - Purifying method and apparatus of recycling waste liquid of organic solvent - Google Patents
Purifying method and apparatus of recycling waste liquid of organic solvent Download PDFInfo
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- CN103101985A CN103101985A CN2011103567458A CN201110356745A CN103101985A CN 103101985 A CN103101985 A CN 103101985A CN 2011103567458 A CN2011103567458 A CN 2011103567458A CN 201110356745 A CN201110356745 A CN 201110356745A CN 103101985 A CN103101985 A CN 103101985A
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Abstract
The invention relates to a purifying method and an apparatus of a recycling waste liquid of an organic solvent. The purifying method comprises spraying the recycling waste liquid onto a wall surface with a high temperature and then evaporating the recycling waste liquid. The purifying apparatus comprises a concentrator connected with a to-be-processed exhaust gas input pipe and a concentrated exhaust gas output tube to absorb the organic solvent in the to-be-processed exhaust gas and then condense and desorb; a condenser connected to a downstream end of the concentrated exhaust gas output tube, as well as a condensed recycling liquid outlet pipe and a desorbed gas circulating pipe; a liquid-liquid separator connected to a downstream end of the condensed recycling liquid outlet pipe to separate the condensed recycling liquid into the organic solvent and the recycling waste liquid; and a recycling waste output pipe connected to the liquid-liquid separator so as to spray the recycling waste liquid in the liquid-liquid separator onto a high-temperature wall. The method can conveniently and effectively treat and recover the recycling waste liquid, capture and neutralize sulphide and/or nitride during self-combustion discharge, and cool chimneys.
Description
Technical field
The present invention relates to a kind of purifying method and device of organic solvent Recycling of waste liquid, espespecially a kind ofly utilize heating medium for heating stove combusting heavy oil and in process to the desorption heating medium for heating, because causing chimney, its desorption used heat produces high temperature, and will be sprayed on from the Recycling of waste liquid that the liquid liquid/gas separator is separated chimney, with the design of Recycling of waste liquid evaporation.
Background technology
the organic solvent of widespread use in life and production, volatile one-tenth gas at room temperature is therefore have another name called volatile organic gas (Volatile Organic Compounds, VOCs), and most organic solvents has certain toxicity to human body, in addition purifying treatment, moreover, present processing mode for organic solvent, except incineration process, separately have as shown in Figure 1, to make pending waste gas by a thickener 10, and utilize this thickener 10 that the organic solvent in pending waste gas is adsorbed the reconcentration desorption, then allow the concentrated waste gas of desorption organic solvent out by a condenser 20, be to carry out condensation with the concentrated waste gas of 20 pairs of organic solvents of this condenser, and through a liquid liquid/gas separator 30, the recovery liquid of condensation is separated into organic solvent and Recycling of waste liquid, but the organic solvent that reclaims is the purifying recycling, though and Recycling of waste liquid meets emission standard and can directly externally discharge, but because of its frowziness still, directly external discharging can cause the discomfort of sense of smell, but there is no at present appropriate treatment process.
Summary of the invention
Technical problem underlying to be solved by this invention is, overcome the defects that prior art exists, and provide a kind of purifying method and device of organic solvent Recycling of waste liquid, it has conveniently and effectively processes the effect of Recycling of waste liquid, have in the auto-combustion exhaust and to catch sulfide or nitride and the effect of neutralizing treatment in addition, and have the effect that makes chimney lower the temperature.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of purifying method of organic solvent Recycling of waste liquid is Recycling of waste liquid to be sprayed on the wall of high temperature, and Recycling of waste liquid is evaporated; Wherein, utilize desorption used heat that the organic solvent desorption process produces to form the high temperature of wall, and desorption used heat comes from heating medium for heating stove combusting heavy oil and add the burning used heat that the thermal desorption heating agent produces, and wall is the chimney of heating medium for heating stove.
Then, the further drippage of the Recycling of waste liquid that is not evaporated of utilization, and catch in the sulfide that combusting heavy oil is produced or nitride auto-combustion exhaust.Again, more further will carry out chemical neutralization because of the Recycling of waste liquid that drippage catches sulfide or nitride and process, and the Recycling of waste liquid after neutralizing treatment will be sprayed on the chimney of heating medium for heating stove.
Yet the constitutional features of refining plant of the present invention includes: a thickener, and linking has a pending exhaust input tube and a concentrated exhaust output tube, and adsorbs organic solvent and concentrated desorption in pending waste gas; One condenser is linked to the downstream end of this concentrated exhaust output tube, and there are a condensate recovery liquid output tube and a desorption gas circulation tube another the link, and this desorption gas circulation tube is linked to this thickener; One liquid liquid/gas separator is linked to the downstream end of this condensate recovery liquid output tube, and condensate recovery liquid is separated into organic solvent and Recycling of waste liquid; And a Recycling of waste liquid output tube, be linked to this liquid liquid/gas separator, and the Recycling of waste liquid of this liquid liquid/gas separator inside is sprayed on a high-temperature wall surface, so that Recycling of waste liquid is evaporated.
In addition, this thickener adds the thermal desorption heating agent with a heating medium for heating stove combusting heavy oil and produces required desorption heat, and this high-temperature wall surface is the chimney of heating medium for heating stove.Again, further arrange one in this chimney bottom and do not evaporate the concentrated groove of Recycling of waste liquid, catch in sulfide that the drippage do not evaporate Recycling of waste liquid produces combusting heavy oil or nitride auto-combustion exhaust and utilize, and do not evaporate Recycling of waste liquid in this and concentrate groove link one not evaporate the Recycling of waste liquid output tube, collected not evaporation Recycling of waste liquid is sprayed on this chimney.Separately, further not evaporating Recycling of waste liquid in this concentrates groove not carry out the chemical neutralization processing to evaporating Recycling of waste liquid.Moreover this thickener is fluid bed thickener or fixed-bed type thickener.
The invention has the beneficial effects as follows, it has convenient and effectively processes the effect of Recycling of waste liquid, has to catch sulfide or nitride and the effect of neutralizing treatment in addition in the auto-combustion exhaust, and has the effect that makes chimney lower the temperature.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the structural representation of existing Purifying Device for Organic Solvent.
Fig. 2 is structural representation of the present invention.
The number in the figure explanation:
10 thickeners
11 pending exhaust input tubes
12 concentrated exhaust output tubes
13 heating medium for heating stoves
14 chimneys
20 condensers
21 condensate recovery liquid output tubes
22 desorption gas circulation tubes
30 liquid liquid/gas separators
31 Recycling of waste liquid output tubes
40 do not evaporate Recycling of waste liquid concentrates groove
41 do not evaporate the Recycling of waste liquid output tube
Embodiment
At first, see also shown in Figure 2, refining plant of the present invention includes: a thickener 10, can be fluid bed thickener or fixed-bed type thickener, link a pending exhaust input tube 11 and a concentrated exhaust output tube 12 are arranged, and adsorb organic solvent and concentrated desorption in pending waste gas, and add the thermal desorption heating agent and produce required desorption heat with heating medium for heating stove 13 combusting heavy oils, and this heating medium for heating stove 13 links a chimney 14 is arranged; One condenser 20, be linked to the downstream end of this concentrated exhaust output tube 12, there are a condensate recovery liquid output tube 21 and a desorption gas circulation tube 22 another the link, and this desorption gas circulation tube 22 is linked to this thickener 10, and in order to desorption gas is sent back to this thickener 10 circulation desorptions; One liquid liquid/gas separator 30 is linked to the downstream end of this condensate recovery liquid output tube 21, and condensate recovery liquid is separated into organic solvent and Recycling of waste liquid; And a Recycling of waste liquid output tube 31, be linked to this liquid liquid/gas separator 30, and the Recycling of waste liquid of this liquid liquid/gas separator 30 inside is sprayed on this chimney 14, so that Recycling of waste liquid is evaporated.
In addition, further arrange one does not evaporate Recycling of waste liquid and concentrates groove 40 in this chimney 14 bottoms, catch in sulfide that the drippage do not evaporate Recycling of waste liquid produces combusting heavy oil or nitride auto-combustion exhaust and utilize, and this is not evaporated Recycling of waste liquid concentrate the not evaporation Recycling of waste liquid of groove 40 inside to carry out chemical neutralization to process, and do not evaporate Recycling of waste liquid in this and concentrate groove 40 links one not evaporate Recycling of waste liquid output tube 41, collected not evaporation Recycling of waste liquid is sprayed on this chimney 14.
Based on above-mentioned formation, the present invention is the heating medium for heating stove 13 that utilizes Purifying Device for Organic Solvent, because of combusting heavy oil to the desorption heating medium for heating with in the process that produces desorption heat, and so synchronous desorption used heat that produces of the production process of desorption heat meeting, be to cause this chimney 14 to produce high temperature, and will be sprayed on from the Recycling of waste liquid that liquid liquid/gas separator 30 is separated this chimney 14, with the Recycling of waste liquid evaporation, solve the emission problem of Recycling of waste liquid; Be with, have convenient and effectively process Recycling of waste liquid and have the effect that makes the chimney cooling concurrently.
Moreover, in drippage process due to the Recycling of waste liquid that is not evaporated, catch in the sulfide that can on the way combusting heavy oil be produced or nitride auto-combustion exhaust, process and can be further this Recycling of waste liquid that catches sulfide or nitride because of drippage be carried out chemical neutralization, and the Recycling of waste liquid after neutralizing treatment is sprayed on this chimney 14 again and evaporates; Whereby, have in the auto-combustion exhaust and to catch sulfide or nitride and the effect of neutralizing treatment in addition.
The above, it is only preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment does.
In sum, the present invention is on structure design, use practicality and cost benefit, meet industry development fully required, and the structure that discloses is also to have unprecedented innovative structure, have novelty, creativeness, practicality, the regulation that meets relevant patent of invention important document is therefore mention application in accordance with the law.
Claims (10)
1. the purifying method of an organic solvent Recycling of waste liquid, is characterized in that, Recycling of waste liquid is sprayed on the wall of high temperature, and Recycling of waste liquid is evaporated.
2. the purifying method of organic solvent Recycling of waste liquid according to claim 1, is characterized in that, utilizes desorption used heat that the organic solvent desorption process produces to form the high temperature of wall.
3. the purifying method of organic solvent Recycling of waste liquid according to claim 2, is characterized in that, desorption used heat comes from heating medium for heating stove combusting heavy oil and adds the burning used heat that the thermal desorption heating agent produces, and wall and be the chimney of heating medium for heating stove.
4. the purifying method of organic solvent Recycling of waste liquid according to claim 3, is characterized in that, utilizes the drippage of the Recycling of waste liquid be not evaporated, and catch in the sulfide that combusting heavy oil is produced or nitride auto-combustion exhaust.
5. the purifying method of organic solvent Recycling of waste liquid according to claim 4, it is characterized in that, further will carry out chemical neutralization because of the Recycling of waste liquid that drippage catches sulfide or nitride and process, and the Recycling of waste liquid after neutralizing treatment will be sprayed on the chimney of heating medium for heating stove.
6. the refining plant of an organic solvent Recycling of waste liquid, is characterized in that, includes:
One thickener, linking has a pending exhaust input tube and a concentrated exhaust output tube, and adsorbs organic solvent and concentrated desorption in pending waste gas;
One condenser is linked to the downstream end of this concentrated exhaust output tube, and there are a condensate recovery liquid output tube and a desorption gas circulation tube another the link, and this desorption gas circulation tube is linked to this thickener;
One liquid liquid/gas separator is linked to the downstream end of this condensate recovery liquid output tube, and condensate recovery liquid is separated into organic solvent and Recycling of waste liquid;
One Recycling of waste liquid output tube is linked to this liquid liquid/gas separator, and the Recycling of waste liquid of this liquid liquid/gas separator inside is sprayed on a high-temperature wall surface, so that Recycling of waste liquid is evaporated.
7. the refining plant of organic solvent Recycling of waste liquid according to claim 6, is characterized in that, described thickener adds the thermal desorption heating agent with a heating medium for heating stove combusting heavy oil and produces required desorption heat, and described high-temperature wall surface is the chimney of heating medium for heating stove.
8. the refining plant of organic solvent Recycling of waste liquid according to claim 7, it is characterized in that, further arrange one in described chimney bottom and do not evaporate the concentrated groove of Recycling of waste liquid, catch in sulfide that the drippage do not evaporate Recycling of waste liquid produces combusting heavy oil or nitride auto-combustion exhaust and utilize, and concentrate groove link one not evaporate the Recycling of waste liquid output tube in the described Recycling of waste liquid that do not evaporate, collected not evaporation Recycling of waste liquid is sprayed on described chimney.
9. the refining plant of organic solvent Recycling of waste liquid according to claim 8, is characterized in that, further concentrates groove not carry out the chemical neutralization processing to evaporating Recycling of waste liquid in the described Recycling of waste liquid that do not evaporate.
10. the refining plant of the described organic solvent Recycling of waste liquid of any one according to claim 6 to 9, is characterized in that, described thickener is fluid bed thickener or fixed-bed type thickener.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103567458A CN103101985A (en) | 2011-11-11 | 2011-11-11 | Purifying method and apparatus of recycling waste liquid of organic solvent |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103567458A CN103101985A (en) | 2011-11-11 | 2011-11-11 | Purifying method and apparatus of recycling waste liquid of organic solvent |
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| Publication Number | Publication Date |
|---|---|
| CN103101985A true CN103101985A (en) | 2013-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103567458A Pending CN103101985A (en) | 2011-11-11 | 2011-11-11 | Purifying method and apparatus of recycling waste liquid of organic solvent |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2168859Y (en) * | 1993-06-17 | 1994-06-15 | 吴康地 | Medium-temperature concentration, purification and recovery device for waste acid solution |
| CN1594113A (en) * | 2004-07-05 | 2005-03-16 | 宜兴市通达化学有限公司 | Method for treating waste liquid of cellulose ether production |
| JP2009082883A (en) * | 2007-10-03 | 2009-04-23 | Sasakura Engineering Co Ltd | Apparatus and method for concentration |
-
2011
- 2011-11-11 CN CN2011103567458A patent/CN103101985A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2168859Y (en) * | 1993-06-17 | 1994-06-15 | 吴康地 | Medium-temperature concentration, purification and recovery device for waste acid solution |
| CN1594113A (en) * | 2004-07-05 | 2005-03-16 | 宜兴市通达化学有限公司 | Method for treating waste liquid of cellulose ether production |
| JP2009082883A (en) * | 2007-10-03 | 2009-04-23 | Sasakura Engineering Co Ltd | Apparatus and method for concentration |
Non-Patent Citations (1)
| Title |
|---|
| 刘汉杰: "活性碳纤维有机尾气净化回收技术", 《环境保护》, no. 5, 31 May 2002 (2002-05-31) * |
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Application publication date: 20130515 |