CN109224784A - Filter-press tail gas recovery device and method - Google Patents
Filter-press tail gas recovery device and method Download PDFInfo
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- CN109224784A CN109224784A CN201811159105.6A CN201811159105A CN109224784A CN 109224784 A CN109224784 A CN 109224784A CN 201811159105 A CN201811159105 A CN 201811159105A CN 109224784 A CN109224784 A CN 109224784A
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- tail gas
- filter
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- cooling
- impurity
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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
- B01D53/002—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 by condensation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
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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
- B01D53/02—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 by adsorption, e.g. preparative gas chromatography
-
- 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
- B01D53/26—Drying gases or vapours
- B01D53/261—Drying gases or vapours by adsorption
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- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Drying Of Gases (AREA)
Abstract
The present embodiments relate to chemical fields, disclose a kind of filter-press tail gas recovery device and method, the filter-press tail gas recovery device is arranged after filter-press, comprising: vapor-liquid separating device, wash mill, cooling device, de-watering apparatus, exhaust collection using device.Vapor-liquid separating device is connect with filter-press, for by the filtrate of filter-press and tail gas separation.Wash mill is connect with gas-liquid separation device, for carrying out washing gumming to tail gas.Cooling device is for carrying out cooling water removal to tail gas.De-watering apparatus is for removing the moisture carried secretly in tail gas.Exhaust collection using device is used to tail gas being collected utilization.In the present invention, the recycling tail gas of filter-press tail gas recovery device can be reused, and prevent energy waste, improve surrounding enviroment.
Description
Technical field
The present embodiments relate to chemical fields, in particular to filter-press tail gas recovery device and method.
Background technique
Terephthalic acid factory once divides pressure filtration tail gas in mother liquor knockout drum after filtering at present
From the tail gas after separation carries certain impurity and moisture secretly, washs using Pressure Wash tower and removes impurity, later again through recirculated water
After cooler is cooling, directly emptying discharge, tail gas is not recycled.
But inventors have found that filter-press main component is nitrogen, after tail gas is in line, on-site noise is very big, shadow
Environment is rung, and in line rear tail gas is not recycled, the more wasteful energy.
Summary of the invention
Embodiment of the present invention is designed to provide a kind of filter-press tail gas recovery device and method, so that tail gas
It can be recycled, prevent energy waste, improve surrounding enviroment.
In order to solve the above technical problems, embodiments of the present invention provide a kind of filter-press tail gas recovery device,
It is arranged after filter-press, comprising: vapor-liquid separating device, wash mill, cooling device, de-watering apparatus, exhaust collection utilize
Device；The vapor-liquid separating device is connect with the filter-press, for dividing the filtrate of the filter-press and tail gas
From；The wash mill is connect with the gas-liquid separation device, for carrying out washing gumming to tail gas；The cooling device is used for
Cooling water removal is carried out to tail gas；The de-watering apparatus is for removing the moisture carried secretly in tail gas；The exhaust collection using device
For tail gas to be collected utilization.
Embodiments of the present invention additionally provide a kind of filter-press method for recovering tail gas, comprising the following steps: obtain
Pressure filtration tail gas；Washing gumming is carried out to tail gas；Remove the moisture and impurity in tail gas；Application is collected to tail gas.
Embodiment of the present invention in terms of existing technologies, increases de-watering apparatus and exhaust collection using device, removes
Water installations can remove the moisture carried secretly in tail gas, and exhaust collection using device is arranged after the de-watering apparatus, and being used for will
Tail gas after water removal is collected utilization.Due to tail gas by cooling device it is cooling after no longer direct emission, but pass through water removal
Device water removal, and utilization is collected to tail gas by exhaust collection using device, so that tail gas is recycled, it is therefore prevented that energy
Source waste.In addition, eliminating noise due to the direct emission for avoiding tail gas, surrounding enviroment can be substantially improved.
In addition, the de-watering apparatus specifically includes: aftercooler, cooling driers, vapor-liquid separation tank；The aftercooler and institute
Cooling device connection is stated, for the water removal that further cools down to tail gas；The cooling driers are connect with the aftercooler, for tail
Gas cools down again, and part water and impurity is precipitated；The vapor-liquid separation tank is connect with the cooling driers, for separating tail gas and water and miscellaneous
Matter.The de-watering apparatus can further remove water and impurity in tail gas, and separate tail gas and water and impurity.
In addition, the de-watering apparatus further includes absorption regeneration drying tower；The absorption regeneration drying tower and the vapour-liquid point
It connects from tank, is dried for adsorption moisture, impurity.Absorption regeneration drying tower can purify again after de-watering apparatus water removal
Tail gas.
In addition, the absorption regeneration drying tower outlet is additionally provided with filter, it is dry for filtering out the absorption regeneration
Desiccant in tower prevents the desiccant in drying tower to be mixed into tail gas.
In addition, the filter-press tail gas recovery device is additionally provided with muffler, for reducing the noise of tail gas, prevent
Tail gas causes noise pollution, improves surrounding enviroment.
In addition, the filter-press is for being filtered p-phthalic acid's slurry.
In addition, the filter-press tail gas recovery device further includes pressure reducing valve, setting utilizes dress in the exhaust collection
Before setting, the pressure of tail gas can be reduced, is effectively used.
In addition, the step of moisture and impurity removed in tail gas, is realized especially by the type of cooling.In addition, described go
The step of except moisture and impurity in tail gas, is realized especially by suction type.
Detailed description of the invention
One or more embodiments are illustrated by the picture in corresponding attached drawing, these exemplary theorys
The bright restriction not constituted to embodiment, the element in attached drawing with same reference numbers label are expressed as similar element, remove
Non- to have special statement, composition does not limit the figure in attached drawing.
Fig. 1 is the schematic diagram of filter-press tail gas recovery device in first embodiment of the invention；
Fig. 2 is the step schematic diagram of filter-press method for recovering tail gas in third embodiment of the invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing to the present invention
Each embodiment be explained in detail.However, it will be understood by those skilled in the art that in each embodiment party of the present invention
In formula, in order to make the reader understand this application better, many technical details are proposed.But even if without these technical details
And various changes and modifications based on the following respective embodiments, the application technical solution claimed also may be implemented.
The first embodiment of the present invention is related to a kind of filter-press tail gas recovery devices, as shown in Figure 1, setting is being pressed
After power filter 1, comprising: vapor-liquid separating device 2, wash mill 3, cooling device 4, de-watering apparatus 5, exhaust collection using device
(not shown).Vapor-liquid separating device 2 is connect with filter-press 1, for by the filtrate of filter-press 1 and tail gas separation.
Wash mill 3 is connect with gas-liquid separation device, for carrying out washing gumming to tail gas.Cooling device 4 is for dropping tail gas
Temperature water removal；De-watering apparatus 5 is for removing the moisture carried secretly in tail gas.Exhaust collection using device is used to tail gas being collected benefit
With.
It should be noted that filter-press 1 is for being filtered vapour to p-phthalic acid's slurry in present embodiment
Liquid separating apparatus 2 is three vapor-liquid separation tanks, and the tail gas after separation carries certain impurity and moisture secretly, and wash mill 3 is a washing
Tower, washing pass through cooling device 4 after removing impurity, and cooling device 4 is a cooler, by de-watering apparatus 5 after cooling water removal.When
So, filter-press 1 can be used for being filtered other slurries, define here not to this.As shown in Figure 1, water removal
Device 5 specifically includes: aftercooler 7, cooling driers 8, vapor-liquid separation tank 9.Aftercooler 7 is connect with cooling device 4, for tail
Gas further cools down water removal.Cooling driers 8 are connect with aftercooler 7, and for cooling down again to tail gas, part water and impurity is precipitated.Vapour
Liquid knockout drum 9 is connect with cooling driers 8, for separating tail gas and water and impurity.The de-watering apparatus 5 can be removed further in tail gas
Water and impurity, and separate tail gas and water and impurity.Exhaust collection using device is power generator.In present embodiment, tail gas quilt
It is delivered in drying machine blast system 6, generates electricity for conveying tail gas to power generator after drying.
It is noted that de-watering apparatus 5 can also include being adsorbed by drying tower 10, it is adsorbed by drying tower 10 and vapor-liquid separation tank
9 connections, are dried for adsorption moisture, impurity.In present embodiment, it is adsorbed by drying tower 10 and is made of two towers, at one
In the adsorption tower of adsorbed state, another is in the regenerator of regeneration stage or stand-by state.Being adsorbed by drying tower 10 can also be
It is provided with filter 11 after two towers, for filtering out the desiccant of tail gas entrainment being adsorbed by drying in tower 10, prevents drying tower
Interior desiccant is mixed into tail gas.
The regenerative process of tower 10 is adsorbed by drying including heating regeneration and purges cooling two steps: heating regeneration stage,
Regenerator bed first slowly reduce to normal pressure, regeneration blower is by after air pressurized, after recycling steam heater to heat air, into
Enter regenerator bed to regenerate adsorbent, the saturation tail gas come out from bed is discharged through muffler.In order to avoid being cut in bed
The temperature of product gas and dew point fluctuate when changing, and need to cool down the bed after hot recycling using cooling air.Cooling air
Using product gas, it is directly entered regenerator bed purging cooling.After the completion of regeneration, bed boosts and enters stand-by state, when being in
When the adsorption tanks of adsorbed state reach absorption terminal, two adsorption tanks automatically switch.Thus, the presence for being adsorbed by drying tower 10 can be with
Cleaning of off-gas again after removing water de-watering apparatus 5.
Certainly, the de-watering apparatus in present embodiment is also possible to other forms, such as cooler frozen water machine, absorption type
Drying device, liquid phase adsorption agent device, infiltration evaporation film device etc. need to only achieve the purpose that dehydration.
In addition, 1 tail gas recovery device of filter-press can also include pressure reducing valve, it is arranged in exhaust collection using device
Before, the pressure of tail gas can be reduced, is effectively used.
Embodiment of the present invention in terms of existing technologies, increases de-watering apparatus 5 and exhaust collection using device, removes
Water installations 5 can remove the moisture carried secretly in tail gas, and exhaust collection using device is arranged after de-watering apparatus 5, for that will remove
Tail gas after water is collected utilization.Since tail gas no longer passes through direct emission after cooling device 4 cools down, but pass through water removal dress
5 water removals are set, and utilization is collected to tail gas by exhaust collection using device, so that tail gas is recycled, it is therefore prevented that energy
Source waste.In addition, eliminating noise due to the direct emission for avoiding tail gas, surrounding enviroment can be substantially improved.
Second embodiment of the present invention is related to a kind of filter-press tail gas recovery device, and second embodiment is first
It is further improved on the filter-press tail gas recovery device of embodiment, mainly thes improvement is that: implementing second
In mode, muffler is additionally provided in filter-press tail gas recovery device, muffler can be set in being adsorbed by drying in tower, inhale
It need to be discharged from the tail gas that bed comes out through muffler in attached drying tower.Setting muffler can reduce exhaust noise, prevent from regenerating
When the tail gas that discharges cause noise pollution, improve surrounding enviroment.
The filter-press tail gas recovery device equally increases de-watering apparatus and exhaust collection using device, de-watering apparatus
It can remove the moisture carried secretly in tail gas, and exhaust collection using device is arranged after de-watering apparatus, for the tail after removing water
Gas is collected utilization.Since tail gas is no longer by direct emission after cooling device cooling, but removed water by de-watering apparatus, and
Utilization is collected to tail gas by exhaust collection using device, enables tail gas reuse, it is therefore prevented that energy waste.In addition, should
Filter-press tail gas recovery device also relies on muffler and eliminates the in line brought noise of the tail gas discharged when regeneration, not only makes
Obtaining tail gas can be recycled, and prevent energy waste, while eliminate the noise that the direct outlet of regeneration tail gas generates, and prevent tail
Gas causes noise pollution, improves surrounding enviroment.
Third embodiment of the invention is related to a kind of filter-press method for recovering tail gas, as shown in Fig. 2, including following step
It is rapid:
Obtain pressure filtration tail gas；
Washing gumming is carried out to tail gas；
Remove the moisture and impurity in tail gas；
Application is collected to tail gas.
After getting pressure filtration tail gas, washing gumming first is carried out to tail gas, then remove tail gas by certain methods
In moisture and impurity, and utilization is collected to tail gas, to prevent energy waste.
Wherein, the step of removing the moisture and impurity in tail gas can realize by the type of cooling, such as can be by cold
But impurity is removed after device cooling de-watering.Certainly, remove tail gas in moisture and impurity the step of can also be realized by suction type,
For example same effect can be realized by sorption drying device.Certainly it is also not excluded for realizing in removal tail gas there are also other modes
The possibility of moisture and impurity.
It should also be noted that, can disappear to the tail gas discharged when regenerating before being collected application to tail gas
Sound processing, reduces noise, and filter-press on-site noise is avoided to pollute.
In order to enable tail gas effectively to utilize, before tail gas is collected application, some means can be taken to enable tail gas
Reach the condition for meeting and collecting application, for example to control dew point in desired value, to reach the condition of recycling.
It will be understood by those skilled in the art that the respective embodiments described above are to realize specific embodiments of the present invention,
And in practical applications, can to it, various changes can be made in the form and details, without departing from the spirit and scope of the present invention.
Claims (10)
1. a kind of filter-press tail gas recovery device is arranged after filter-press characterized by comprising vapor-liquid separation
Device, wash mill, cooling device, de-watering apparatus, exhaust collection using device；
The vapor-liquid separating device is connect with the filter-press, for dividing the filtrate of the filter-press and tail gas
From；
The wash mill is connect with the gas-liquid separation device, for carrying out washing gumming to tail gas；
The cooling device is for carrying out cooling water removal to tail gas；
The de-watering apparatus is for removing the moisture carried secretly in tail gas；
The exhaust collection using device is arranged after the de-watering apparatus, for tail gas to be collected utilization.
2. filter-press device for recovering tail gas according to claim 1, which is characterized in that the de-watering apparatus specifically wraps
It includes: aftercooler, cooling driers, vapor-liquid separation tank 9；
The aftercooler is connect with the cooling device, for the water removal that further cools down to tail gas；
The cooling driers are connect with the aftercooler, and for cooling down again to tail gas, part water and impurity is precipitated；
The vapor-liquid separation tank 9 is connect with the cooling driers, for separating tail gas and water and impurity.
3. filter-press device for recovering tail gas according to claim 2, which is characterized in that the de-watering apparatus further includes
Absorption regeneration drying tower；
The absorption regeneration drying tower is connect with the vapor-liquid separation tank 9, is dried for adsorption moisture, impurity.
4. filter-press device for recovering tail gas according to claim 3, which is characterized in that the absorption regeneration drying tower
Outlet is additionally provided with filter, for filtering out the desiccant being adsorbed by drying in tower.
5. filter-press device for recovering tail gas according to claim 1, which is characterized in that the pressure filtration tail gas
Reclaimer is additionally provided with muffler, for reducing exhaust noise.
6. filter-press device for recovering tail gas according to claim 1, which is characterized in that the filter-press is used for
P-phthalic acid's slurry is filtered.
7. filter-press device for recovering tail gas according to claim 1, which is characterized in that the pressure filtration tail gas
Reclaimer further includes pressure reducing valve, is arranged before the exhaust collection using device.
8. a kind of filter-press method for recovering tail gas, which comprises the following steps:
Obtain pressure filtration tail gas；
Washing gumming is carried out to tail gas；
Remove the moisture and impurity in tail gas；
Application is collected to tail gas.
9. filter-press method for recovering tail gas according to claim 8, which is characterized in that the water in the removal tail gas
Point and the step of impurity realized especially by the type of cooling.
10. filter-press method for recovering tail gas according to claim 8, which is characterized in that in the removal tail gas
The step of moisture and impurity, is realized especially by suction type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811159105.6A CN109224784A (en) | 2018-09-30 | 2018-09-30 | Filter-press tail gas recovery device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811159105.6A CN109224784A (en) | 2018-09-30 | 2018-09-30 | Filter-press tail gas recovery device and method |
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| Publication Number | Publication Date |
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| CN109224784A true CN109224784A (en) | 2019-01-18 |
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| CN201811159105.6A Pending CN109224784A (en) | 2018-09-30 | 2018-09-30 | Filter-press tail gas recovery device and method |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101314103A (en) * | 2008-07-11 | 2008-12-03 | 周才宝 | High-efficiency drying apparatus for regenerating exhaust heat of pressure gas |
| KR20120097305A (en) * | 2011-02-24 | 2012-09-03 | (주)에이엠티퍼시픽 | Recovering method of acetic acid from reactor emission in the oxidation process of aromatic compound |
| CN202494343U (en) * | 2011-10-19 | 2012-10-17 | 苏州新思气体系统有限公司 | Tail gas purification and cyclic utilization device for bell-type bright annealing furnace system |
| CN205850532U (en) * | 2016-07-21 | 2017-01-04 | 金川集团股份有限公司 | A kind of pressure filter gas collector |
| CN206911016U (en) * | 2017-06-20 | 2018-01-23 | 湖北泰盛化工有限公司 | A kind of press filtration tail gas non-pollution discharge device |
| CN107837641A (en) * | 2017-10-26 | 2018-03-27 | 烟台国邦化工机械科技有限公司 | A kind of tail gas recycle recycling processing method and change system |
-
2018
- 2018-09-30 CN CN201811159105.6A patent/CN109224784A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101314103A (en) * | 2008-07-11 | 2008-12-03 | 周才宝 | High-efficiency drying apparatus for regenerating exhaust heat of pressure gas |
| KR20120097305A (en) * | 2011-02-24 | 2012-09-03 | (주)에이엠티퍼시픽 | Recovering method of acetic acid from reactor emission in the oxidation process of aromatic compound |
| CN202494343U (en) * | 2011-10-19 | 2012-10-17 | 苏州新思气体系统有限公司 | Tail gas purification and cyclic utilization device for bell-type bright annealing furnace system |
| CN205850532U (en) * | 2016-07-21 | 2017-01-04 | 金川集团股份有限公司 | A kind of pressure filter gas collector |
| CN206911016U (en) * | 2017-06-20 | 2018-01-23 | 湖北泰盛化工有限公司 | A kind of press filtration tail gas non-pollution discharge device |
| CN107837641A (en) * | 2017-10-26 | 2018-03-27 | 烟台国邦化工机械科技有限公司 | A kind of tail gas recycle recycling processing method and change system |
Non-Patent Citations (1)
| Title |
|---|
| 闫秀梅: "浅谈电解金属锰厂压滤机尾气回收方案", 《科学与财富》 * |
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Application publication date: 20190118 |
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