CN205461675U - Methyl alcohol loading waste gas recovery device - Google Patents
Methyl alcohol loading waste gas recovery device Download PDFInfo
- Publication number
- CN205461675U CN205461675U CN201620048395.7U CN201620048395U CN205461675U CN 205461675 U CN205461675 U CN 205461675U CN 201620048395 U CN201620048395 U CN 201620048395U CN 205461675 U CN205461675 U CN 205461675U
- Authority
- CN
- China
- Prior art keywords
- waste gas
- methanol
- dilute alcohol
- water
- alcohol
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model discloses a methyl alcohol loading waste gas recovery device belongs to methyl alcohol waste gas recovery field. The device includes sprayer, rare pure basin and washes pure tower, sprayer, its air inlet meet methyl alcohol waste gas conveying line, and the delivery port is linked together with rare pure basin, the water inlet with take off salty water convey pipe and/or rare pure basin delivery port and be linked together, rare pure basin, its gas outlet with wash pure tower air inlet and be linked together, the delivery port is linked together with sprayer and/or rare pure water outlet pipe way, wash pure tower, its water inlet connects and takes off the salty water convey pipe. Compared with the prior art, the utility model discloses a methyl alcohol loading waste gas recovery device both furthest the assurance security, practiced thrift energy consumption, material again, simultaneously make full use of the regenerant, have fine popularization and application and worth.
Description
Technical field
This utility model relates to methanol waste gas and reclaims field, specifically a kind of methanol entrucking waste gas recovering device.
Background technology
Can produce a large amount of methanol waste gas during the methanol entrucking of chemical plant, the most topmost methanol steam is the impact during methanol entrucking due to ambient pressure and temperature, evaporate in air formation methanol waste gas.In normal pressure, methanol waste gas during temperature 35 DEG C, the amount containing methanol steam is up to 27.4%.In prior art, the recovery aspect of waste gas has many technical schemes planting maturation in this section, as: absorption process (WATER-WASHING METHOD), absorption method, condensation method, membrane separating method, particularly condensation method, high with its response rate, meet environmental requirement, complete sets of equipment assembling, simple, running automaticity advantages of higher are widely used, and by 27%, the methanol content in methanol waste gas can be down to about 5%.
But being as stepping up environmental requirement in recent years, the technique of simple utilization condensation method separation methanol steam cannot be suitable for because of the highest energy consumption.Progressively occur in that new method is to reach corresponding environmental emission standard through continuous exploration.But the waste gas in new method needs blower fan or pump to carry out pressure-raising to ensure that flowing, by package unit, makes the concentration of methanol waste gas increase in explosion limit, there is certain potential safety hazard.
In the patent documentation of Patent No. CN104307197A, disclose a kind of methanol recovery device.Described methanol recovery device includes reactor and receives tank, reactor has the first condenser with being connected on the pipeline receiving tank, receiving tank and have the second condenser by pipeline connection, the second condenser is connected by pipeline the first fridge, is equipped with molecular sieve at the first condenser inlet.The methanol recovery device of this structure can effectively reclaim methanol, reaches to reduce methanol loss, the purpose of protection environment.But the methanol recovery device of this structure needs to utilize fridge and two condensers, during reclaiming methanol, need the highest energy consumption, not only increase entreprise cost, and do not meet the ecological requirements of society now.
Summary of the invention
Technical assignment of the present utility model is for above-mentioned the deficiencies in the prior art, it is provided that the methanol entrucking waste gas recovering device that a kind of safe ready, energy consumption are low.
Technical assignment of the present utility model realizes in the following manner: methanol entrucking waste gas recovering device, it is characterised in that includes ejector, dilute alcohol tank and washes alcohol tower,
Described ejector, its air inlet connects methanol waste gas transfer pipeline, and outlet is connected with dilute alcohol tank, and water inlet is connected with desalted water conveying pipe and/or dilute alcohol sink outlet；
Described dilute alcohol tank, its gas outlet is connected with washing alcohol tower air inlet, and outlet is connected with ejector and/or dilute alcohol water delivery pipe road；
Described washing alcohol tower, its water inlet connects desalted water conveying pipe.
Methanol waste gas under normal pressure sucks through ejector, and pressure-raising is to after suitable pressure, is sufficiently mixed with dilute alcohol water in dilute alcohol tank, dissolves, and the insoluble waste gas containing a small amount of methanol enters and washes alcohol tower, through spray washing, and rear emptying process up to standard.
As preferably, ejector outlet can be connected with dilute alcohol tank middle and lower part by playpipe.
Enter ejector can be desalted water, it is also possible to be the unsaturation dilute alcohol water in dilute alcohol tank, or both mixed liquors, the concentration of dilute alcohol water can be adjusted in the exhausted air quantity of actual treatment and dilute alcohol tank.
Dilute alcohol water in dilute alcohol tank, then according to its concentration, or can send into ejector, or send into dilute alcohol water delivery pipe road, deliver to methanol rectification workshop section or sewage diposal area, use as extraction water or carbon source.
As preferably, retracting device also includes dilute alcohol delivery pump, and dilute alcohol sink outlet can be connected with ejector and/or dilute alcohol water delivery pipe road by dilute alcohol delivery pump.
In order to improve methanol absorption amount further, can be internally provided with spraying mechanism at dilute alcohol tank, described spraying mechanism is managed with desalted water conveying and/or is washed alcohol tower outlet pipeline and is connected.Described spraying mechanism can be the disk with nozzle, coil pipe, tubulation etc..
As preferably, ejector includes at least two shower nozzle, and each shower nozzle equal centering injection, can not only prevent liquid splash, additionally it is possible to pressure-raising effect has been effectively ensured.Furthermore it is also possible to select the ejector of different disposal amount according to exhaust gas flow, it is beneficial to power-save operation.
Described wash the preferred high efficiency structured packing tower of alcohol tower.
Methanol entrucking waste gas recovering device of the present utility model ensure that safety the most to greatest extent, has saved again energy consumption, material, has taken full advantage of regenerant simultaneously, can obtain good economic benefit and social benefit.Compared with prior art there is beneficial effect highlighted below:
(1) the methanol steam water in methanol entrucking waste gas is fully absorbed make dilute alcohol water, use for other workshop sections, effectively reduce the waste of product, improve the utilization rate of product；
(2) the methanol entrucking waste gas processed through this device, its methanol content can reach 50 mg/Nm3Hereinafter, " petro chemical industry pollutant emission standard " is complied fully with；
(3) simple in construction, safe and reliable, be easily achieved, and processing procedure energy consumption is low, utilizes popularization and application.
Accompanying drawing explanation
Accompanying drawing 1 is methanol entrucking waste gas recovering device structural representation described in this utility model embodiment one；
Accompanying drawing 2 is methanol entrucking waste gas recovering device structural representation described in this utility model embodiment two.
Detailed description of the invention
Methanol entrucking gas recovery method of the present utility model and retracting device are described in detail below with specific embodiment with reference to Figure of description.
Embodiment one:
[capital equipment]
As shown in Figure 1, methanol entrucking waste gas recovering device of the present utility model mainly by ejector 1, dilute alcohol tank 2, wash alcohol tower 3, dilute alcohol water delivery pump A4 and dilute alcohol water delivery pump B5 and constitute.
Described ejector 1 is used for the methanol waste gas pressure-raising under normal pressure to suitable pressure, and its air inlet 1-1 connects methanol waste gas transfer pipeline, and outlet 1-2 is connected by the middle and lower part of playpipe 6 with dilute alcohol tank 2.Three shower nozzle 10 centering injections in ejector 1.
Described dilute alcohol tank 2, its outlet 2-1 is connected with the water inlet 1-3 of ejector 1 by dilute alcohol water delivery pump A4, and gas outlet 2-2 is connected with washing alcohol tower 3 air inlet 3-1.The top of dilute alcohol tank 2 is fixed with disc type spraying mechanism 7, disc type spraying mechanism 8.Some nozzles 9 it are provided with on disc type spraying mechanism 7, disc type spraying mechanism 8.Disc type spraying mechanism 7 is connected with desalted water transfer pipeline, for fresh desalted water is introduced dilute alcohol tank 2.The outlet of dilute alcohol water delivery pump A4 is also connected with dilute alcohol water delivery pipe road, for saturated dilute alcohol water is delivered to methanol rectification workshop section or sewage diposal area, uses as extraction water or carbon source.
Described wash alcohol tower 3(high efficiency structured packing tower), its gas outlet 3-2 runs in blank pipe road, and water inlet 3-3 connects desalted water transfer pipeline, and outlet 3-4 connects disc type spraying mechanism 8 by dilute alcohol water delivery pump B5.
[technological process]
1. pressure-raising
By the methanol waste gas under normal pressure through ejector suction, pressure-raising, pressure is discharged after reaching 10KPaG；
2.Once wash
Waste gas after pressure-raising is entered below dilute alcohol tank liquid level by ejector outlet, after waste gas is sufficiently mixed absorption with the dilute alcohol water in dilute alcohol tank, because of density contrast, insoluble waste gas enters dilute alcohol tank upper gaseous phase space, and the methanol content in this portion reduces to 10g/Nm3, pressure is down to about 5KPaG simultaneously.
Secondary is washed: the methanol waste gas in dilute alcohol tank upper gaseous phase space under pressure, exports through tank upper gaseous phase, enters and washes alcohol tower, and through spray washing, after absorbing residual methanol steam, methanol content drops to 50 mg/Nm3Hereinafter, after reaching country's gas discharge standard, it is discharged in air.
[concrete recovery route]
After the methanol waste gas sent here by filling riser gas phase pipe arrives retracting device, first passing through the chain pneumatic self-adjusting valve of pressure transmitter, when pressure reaches more than malleation, Open valve makes waste gas enter methanol waste gas transfer pipeline.Waste gas in methanol waste gas transfer pipeline initially enters ejector 1.Owing to ejector 1 upper end water inlet 1-3 sprays into the pressure-raising dilute alcohol water come by dilute alcohol tank 2 bottom liquid phases, so that the internal gas-phase space of ejector 1 produces negative pressure, waste gas in methanol waste gas transfer pipeline is forced to enter gas phase zone, after pressure reaches 10KPaG, pour lower end after being sufficiently mixed with desalted water (unsaturation dilute alcohol water), enter dilute alcohol tank 2 of bottom together.Owing to waste gas is sufficiently mixed with desalted water (unsaturation dilute alcohol water), and methanol is highly soluble in water, therefore wherein most methanol steam all will be added in water by absorption, and remaining waste gas rises to dilute alcohol tank 2 upper gaseous phase section, and (methanol content reduces to 10g/Nm3, pressure is down to about 5KPaG), gas outlet, top 2-2 go out, enter through air-introduced machine pressure-raising and wash alcohol tower 3, after the washing again washing alcohol tower, the methanol content in waste gas drops to 50 mg/Nm3Below such that it is able in qualified discharge to air.
Dilute alcohol water (saturated dilute alcohol water) of dilute alcohol tank 2 bottom sends into methanol rectification workshop section or sewage diposal area, uses as extraction water or carbon source.
Embodiment two:
[capital equipment]
As shown in Figure 2, methanol entrucking waste gas recovering device of the present utility model mainly by ejector 1, dilute alcohol tank 2, wash alcohol tower 3, dilute alcohol water delivery pump A4 and dilute alcohol water delivery pump B5 and constitute.
Ejector 1, dilute alcohol tank 2, wash alcohol tower 3, dilute alcohol water delivery pump A4, dilute alcohol water delivery pump B5 annexation essentially identical with embodiment one, difference is:
Ejector 1 water inlet 1-3 connects desalted water transfer pipeline, for fresh desalted water is introduced dilute alcohol tank 2；
The top of dilute alcohol tank 2 is only fixed with disc type spraying mechanism 8, no longer arranges disc type spraying mechanism 7.
[technological process]
Technological process is identical with embodiment one.
[concrete recovery route]
Concrete recovery route is essentially identical with embodiment one, difference is: can be according to the concentration of dilute alcohol water in exhaust-gas treatment amount and dilute alcohol tank 2, select entrance ejector 1 upper end water inlet is desalted water, or the pressure-raising dilute alcohol water come by dilute alcohol tank 2 bottom liquid phases, then or the mixed liquor of desalted water and dilute alcohol water.
Claims (4)
1. methanol entrucking waste gas recovering device, it is characterised in that include ejector, dilute alcohol tank and wash alcohol tower,
Described ejector, its air inlet connects methanol waste gas transfer pipeline, and outlet is connected with dilute alcohol tank, and water inlet is connected with desalted water conveying pipe and/or dilute alcohol sink outlet；
Described dilute alcohol tank, its gas outlet is connected with washing alcohol tower air inlet, and outlet is connected with ejector and/or dilute alcohol water delivery pipe road；
Described washing alcohol tower, its water inlet connects desalted water conveying pipe.
Methanol entrucking waste gas recovering device the most according to claim 1, it is characterised in that retracting device also includes dilute alcohol delivery pump, dilute alcohol sink outlet is connected with ejector and/or dilute alcohol water delivery pipe road by dilute alcohol delivery pump.
Methanol entrucking waste gas recovering device the most according to claim 2, it is characterised in that dilute alcohol tank is internally provided with spraying mechanism, described spraying mechanism is managed with desalted water conveying and/or is washed alcohol tower outlet pipeline and is connected.
Methanol entrucking waste gas recovering device the most according to claim 3, it is characterised in that ejector includes at least two shower nozzle, and each shower nozzle centering injection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620048395.7U CN205461675U (en) | 2016-01-19 | 2016-01-19 | Methyl alcohol loading waste gas recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620048395.7U CN205461675U (en) | 2016-01-19 | 2016-01-19 | Methyl alcohol loading waste gas recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205461675U true CN205461675U (en) | 2016-08-17 |
Family
ID=56670250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620048395.7U Active CN205461675U (en) | 2016-01-19 | 2016-01-19 | Methyl alcohol loading waste gas recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205461675U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106731525A (en) * | 2017-03-16 | 2017-05-31 | 东华工程科技股份有限公司 | A kind of methyl alcohol entrucking exhaust gas recovery system |
| CN108530265A (en) * | 2017-03-03 | 2018-09-14 | 陕西黑猫焦化股份有限公司 | Coke-stove gas methanol preparation system and process of preparing |
-
2016
- 2016-01-19 CN CN201620048395.7U patent/CN205461675U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108530265A (en) * | 2017-03-03 | 2018-09-14 | 陕西黑猫焦化股份有限公司 | Coke-stove gas methanol preparation system and process of preparing |
| CN106731525A (en) * | 2017-03-16 | 2017-05-31 | 东华工程科技股份有限公司 | A kind of methyl alcohol entrucking exhaust gas recovery system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207169397U (en) | Oxirane exhaust treatment system | |
| CN103043809B (en) | Cyclone stripping integration ammonia removal reaction tower | |
| CN102233195A (en) | Non-pressure condensing recovery and purification technology and equipment for gas discharged from reclaimed rubber devulcanizer | |
| CN205461675U (en) | Methyl alcohol loading waste gas recovery device | |
| CN204952655U (en) | A desulfurization absorption tower for gas cleaning | |
| CN202270462U (en) | Membrane type ammonia absorber | |
| CN210079197U (en) | Novel ammonia recovery device | |
| CN204588745U (en) | Device for treating high-concentration ammonia | |
| CN208878261U (en) | A kind of furfural exhaust gas recycling and processing device | |
| CN110681232A (en) | Tail gas washing system of fluorite drying device | |
| CN205903744U (en) | Administer bagasse exhaust gas of boiler's dehydration gas wash tower | |
| CN203112605U (en) | Swirl blow-off integration ammonia removal reaction tower | |
| CN202813338U (en) | Steam condensate reclaiming system | |
| CN210905500U (en) | Cyclone dust removal membrane type separation device for treating tail gas of fertilizer granulation high tower | |
| CN113058388A (en) | Bubble tower device for treating methanol waste gas and using method | |
| CN208532289U (en) | A kind of wastewater from chemical industry stripping processing unit | |
| CN209317391U (en) | Ammonia recovery reuse means | |
| CN209138332U (en) | A kind of spray column of anti-siltation | |
| CN209612499U (en) | Vent gas washing system in composite heat transfer | |
| CN111908545A (en) | Multistage stripping system for ammonia nitrogen wastewater | |
| CN208082148U (en) | A kind of chloropropyl alcohol acidic tail gas absorbing device | |
| CN207871892U (en) | A kind of tail gas breaking plant of chlorine storehouse | |
| CN212651593U (en) | Process system for treating volatile substances | |
| CN206276219U (en) | A kind of acid fog absorption tower tail gas clean-up tapping equipment | |
| CN214106436U (en) | High-efficient whirlwind spray set |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |