CN106512615A - Comprehensive recovery device for tail gas - Google Patents
Comprehensive recovery device for tail gas Download PDFInfo
- Publication number
- CN106512615A CN106512615A CN201611252084.3A CN201611252084A CN106512615A CN 106512615 A CN106512615 A CN 106512615A CN 201611252084 A CN201611252084 A CN 201611252084A CN 106512615 A CN106512615 A CN 106512615A
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- CN
- China
- Prior art keywords
- water
- recovery
- tail gas
- spray column
- recovery device
- 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.)
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Classifications
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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
- B01D47/14—Packed scrubbers
Abstract
The invention relates to a comprehensive recovery device for tail gas. The comprehensive recovery device mainly comprises a recovery spray tower with a built-in filler, wherein the bottom of the recovery spray tower is provided with a tail gas inlet, and the top is provided with a tail gas outlet; the inner cavity of the recovery spray tower is provided with at least three filler layers sequentially from bottom to top; an externally connected water spray mechanism is arranged at least above the uppermost filler layer; the bottom of the recovery spray tower is provided with a recovered water outlet; the recovered water outlet is connected with an external recovered water tank through a duct; the top of the recovery spray tower is connected with a gas-water separator; the upper part of the gas-water separator is connected with a draught fan through a tail gas discharge port via an exhaust tube; the recovered water tank is externally connected with two reuse water tubes, one reuse water tube is connected with the water spray mechanism through a spray water pump to form a reuse water loop, and the other reuse water tube is directly connected with reuse water equipment; and the tail gas inlet is connected with a condenser composed of a shell and tube heat exchanger. The comprehensive recovery device has the characteristics of reasonable structural composition, convenient and reliable use, pollution reduction and the like.
Description
Technical field
The present invention relates to a kind of tail gas comprehensive recovery device, in particular in powdery sodium benzoate production process
Tail gas comprehensive recovery device, belongs to tail gas comprehensive reutilization technical field.
Background technology
Powdery sodium benzoate production process is：There is neutralization reaction with sodium hydroxide in benzoic acid, generate benzene in aqueous
Sodium formate solution, PhCOONa solution after activated carbon Filtration Adsorption impurity are dried into cylinder chip dryer and cut
Piece, the sodium benzoate after section are crushed through pulverizer and produce standard compliant powdery sodium benzoate product.
In powdery sodium benzoate production process, cylinder chip dryer can produce substantial amounts of water in dry run and steam
Vapour, also has dust generation in crushing process thereafter, the tail gas that this two parts is produced is powdery sodium benzoate production process tail
The constituent of gas.For above-mentioned tail gas, traditional processing method is that the dust for producing crushing process passes through sack cleaner
The vapor produced with section after process is discharged after water dust scrubber process jointly, although arranging after being processed by this kind of mode
Put tail gas and reach discharging standards, but sodium benzoate is soluble in water, in the water vapour of discharge, still contain a small amount of benzene first
Sour sodium powder dirt, is discharged in air not only to air born pollution, but also wastes resource.
The content of the invention
It is an object of the invention to overcome the shortcomings of that prior art is present, and provide a kind of structure composition rationally, user
Just it is reliable, pollution can not only be reduced, is economized in raw materials, and reclaim water vapour, energy-saving effect is obvious, the use that work efficiency is improved
Tail gas comprehensive recovery device in powdery sodium benzoate production process.
The purpose of the present invention by following technical solution completing, a kind of tail gas comprehensive recovery device, it mainly wraps
A recovery spray column for being built-in with filler is included, the bottom of the recovery spray column is provided with inlet exhaust gas, and top is provided with tail gas and goes out
Mouthful, described recovery spray column inner chamber is disposed with least three layers packing layer from the bottom up, at least in the packing layer of the superiors
Top is provided with the watering mechanism for outreaching；The bottom for reclaiming spray column is provided with recovery water out, and the recovery water out passes through
Pipeline connects external recovery pond；A steam-water separator is connected at the top of the recovery spray column, the steam-water separator
Top phoenix machine is drawn by exhaust port Jing exhaustors connection.
As preferred：Described recovery pond is circumscribed with two-way reuse water pipe, all the way mono- feeding spraying pumps of Jing connection Water spray
Mechanism, constitutes a reuse water loop, and another road is directly connected to reuse wetting system；Described inlet exhaust gas are connected to one and adopt shell
The condenser that formula heat exchanger is constituted, tail gas connect described inlet exhaust gas after the condenser, and the condenser is cold
But described watering mechanism is attempted by by stop valve with water.
As preferred：Described watering mechanism is arranged on above every layer of packing layer, and is being reclaimed outside spray column and connect
Outreached by interface afterwards all the way, the top offgas outlet for reclaiming spray column is connected to the soda pop point of kidney ellipsoid cylinder composition by pipe
From device, the middle setting of the steam-water separator have cone tip part bullet directed downwardly and connect under bullet, led by sector
The air deflector of flow composition.
The invention belongs to improvements over the prior art, it has structure composition rationally, easy to use and reliable, can not only reduce
Pollution, economizes in raw materials, and has reclaimed water vapour, energy-saving effect substantially, the features such as work efficiency is improved.
Description of the drawings
Fig. 1 is the structural representation of the present invention.
Specific embodiment
Below in conjunction with accompanying drawing, the present invention will be described in detail：Shown in Fig. 1, a kind of tail gas of the present invention is comprehensively returned
Receiving apparatus,, mainly including a recovery spray column for being built-in with filler, the bottom of the recovery spray column 6 is provided with inlet exhaust gas for it
11, top is provided with offgas outlet 12, and described 6 inner chamber of recovery spray column is disposed with least three layers packing layer from the bottom up
10, the watering mechanism 9 for outreaching at least is provided with above the packing layer 10 of the superiors；The bottom for reclaiming spray column 6 is provided with
Water out 8 is reclaimed, the recovery water out 8 connects external recovery pond 2 by pipeline；The top phase for reclaiming spray column 6
A steam-water separator 13 is connected to, phoenix machine 4 is drawn by the connection of exhaust port Jing exhaustors 5 in the top of the steam-water separator 13.
Shown in figure, described recovery pond is circumscribed with two-way reuse water pipe, all the way the connection of mono- feeding spraying pumps of Jing 3 Water spray
Mechanism 9, constitutes a reuse water loop, and another road is directly connected to reuse wetting system；Described inlet exhaust gas 11 are connected to an employing
The condenser 1 that shell-and-tube exchanger is constituted, tail gas connect described inlet exhaust gas 11 after passing through the condenser 1, and described cold
The cooling water of condenser 1 is attempted by described watering mechanism 9 by stop valve 14.
Watering mechanism of the present invention 9 is arranged on above every layer of packing layer 10, and is being reclaimed outside spray column 6 and connect
Outreached by interface 7 afterwards all the way, the top offgas outlet 12 for reclaiming spray column 6 is connected to the vapour of kidney ellipsoid cylinder composition by pipe
Water separator, the middle setting of the steam-water separator have cone tip part bullet 15 directed downwardly and connect under bullet 15,
The air deflector 16 being made up of fan-shaped flow deflector.
Beneficial effects of the present invention are：The tail gas that powdery sodium benzoate production process is produced by the present invention is by recovery tower
After reason, almost dry-steam discharge, has prevented the discharge of sodium benzoate dust, has saved production cost, reclaimed distilled water, saves
About resource.
Claims (3)
1. a kind of tail gas comprehensive recovery device, it is mainly including a recovery spray column for being built-in with filler, the recovery spray column（6）
Bottom be provided with inlet exhaust gas（11）, top is provided with offgas outlet（12）, it is characterised in that described recovery spray column（6）
Inner chamber is disposed with least three layers packing layer from the bottom up（10）, at least in the packing layer of the superiors（10）Top is provided with outer
The watering mechanism of connection（9）；Reclaim spray column（6）Bottom be provided with recovery water out（8）, the recovery water out（8）Pass through
Pipeline connects external recovery pond（2）；The recovery spray column（6）Top be connected to a steam-water separator（13）, the vapour
Water separator（13）Top pass through exhaust port Jing exhaustors（5）Phoenix machine is drawn in connection（4）.
2. tail gas comprehensive recovery device according to claim 1, it is characterised in that described recovery pond（2）It is circumscribed with two
Road reuse water pipe, all the way mono- feeding spraying pumps of Jing（3）Connection watering mechanism（9）, a reuse water-flow circuit is constituted, another road is straight
Water equipment is taken back in succession；Described inlet exhaust gas（11）It is connected to a condenser constituted using shell-and-tube exchanger（1）,
Tail gas passes through the condenser（1）Connect described inlet exhaust gas afterwards（11）, and the condenser（1）Cooling water by cut-off
Valve（14）It is attempted by described watering mechanism（9）.
3. tail gas comprehensive recovery device according to claim 1 and 2, it is characterised in that described watering mechanism（9）Peace
It is mounted in every layer of packing layer（10）Above, and reclaiming spray column（6）It is outer and connect（7）Outreach, reclaim spray
Drench tower（6）Top offgas outlet（12）The steam-water separator of one kidney ellipsoid cylinder composition is connected to by pipe（13）, in the soda pop
Separator（13）Middle setting have cone tip part bullet directed downwardly（15）With in bullet（15）Under connect, by fan-shaped water conservancy diversion
The air deflector of piece composition（16）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611252084.3A CN106512615A (en) | 2016-12-30 | 2016-12-30 | Comprehensive recovery device for tail gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611252084.3A CN106512615A (en) | 2016-12-30 | 2016-12-30 | Comprehensive recovery device for tail gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106512615A true CN106512615A (en) | 2017-03-22 |
Family
ID=58335584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611252084.3A Pending CN106512615A (en) | 2016-12-30 | 2016-12-30 | Comprehensive recovery device for tail gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106512615A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4157250A (en) * | 1972-09-22 | 1979-06-05 | Ulrich Regehr | Scrubber apparatus for washing gases and having a coarse and fine droplet separator |
| CN103990369A (en) * | 2014-06-04 | 2014-08-20 | 长沙高必拓脱硫工程有限公司 | Turbulence aeration tower |
| CN104941355A (en) * | 2014-03-30 | 2015-09-30 | 天津东大化工集团有限公司 | Comprehensive recovery tower for tail gas in sodium benzoate production process |
| CN205042357U (en) * | 2015-05-11 | 2016-02-24 | 武汉都市环保工程技术股份有限公司 | Independent circulating desulfurizing tower of multistage |
| CN206372638U (en) * | 2016-12-30 | 2017-08-04 | 德清崎辉机械科技有限公司 | Tail gas comprehensive recovery device |
-
2016
- 2016-12-30 CN CN201611252084.3A patent/CN106512615A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4157250A (en) * | 1972-09-22 | 1979-06-05 | Ulrich Regehr | Scrubber apparatus for washing gases and having a coarse and fine droplet separator |
| CN104941355A (en) * | 2014-03-30 | 2015-09-30 | 天津东大化工集团有限公司 | Comprehensive recovery tower for tail gas in sodium benzoate production process |
| CN103990369A (en) * | 2014-06-04 | 2014-08-20 | 长沙高必拓脱硫工程有限公司 | Turbulence aeration tower |
| CN205042357U (en) * | 2015-05-11 | 2016-02-24 | 武汉都市环保工程技术股份有限公司 | Independent circulating desulfurizing tower of multistage |
| CN206372638U (en) * | 2016-12-30 | 2017-08-04 | 德清崎辉机械科技有限公司 | Tail gas comprehensive recovery device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170322 |
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| RJ01 | Rejection of invention patent application after publication |