CN208275221U - Reduce the separation system of harmful substance contents in tail gas - Google Patents
Reduce the separation system of harmful substance contents in tail gas Download PDFInfo
- Publication number
- CN208275221U CN208275221U CN201820629216.8U CN201820629216U CN208275221U CN 208275221 U CN208275221 U CN 208275221U CN 201820629216 U CN201820629216 U CN 201820629216U CN 208275221 U CN208275221 U CN 208275221U
- Authority
- CN
- China
- Prior art keywords
- tower
- gas
- branch pipe
- harmful substance
- tail gas
- 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.)
- Expired - Fee Related
Links
- 239000000126 substance Substances 0.000 title claims abstract description 21
- 238000000926 separation method Methods 0.000 title claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 37
- 238000000889 atomisation Methods 0.000 claims abstract description 23
- 239000003595 mist Substances 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 230000008676 import Effects 0.000 claims abstract description 4
- 239000010865 sewage Substances 0.000 claims abstract description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 16
- 239000010935 stainless steel Substances 0.000 claims description 16
- 238000003860 storage Methods 0.000 claims description 10
- 239000007921 spray Substances 0.000 claims description 8
- 239000012528 membrane Substances 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims description 3
- 239000006260 foam Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 7
- 230000009467 reduction Effects 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 29
- 238000000034 method Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000005119 centrifugation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
- 238000009692 water atomization Methods 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The utility model discloses a kind of separation systems of harmful substance contents in reduction tail gas, including exhaust pipe, the exhaust pipe is connected with the top air inlet of atomisation tower, the bottom of atomisation tower is provided with gas-liquid mixed outlet, gas-liquid mixed outlet is connected by pipeline with the gas-liquid separator import in the middle part of deentrainment tower inner cavity, it is provided in deentrainment tower tower body above gas-liquid separator except mist device, the top vent of deentrainment tower is connected with blowdown stack, water circulating pump is provided on the bottom drain of deentrainment tower, the outlet conduit of water circulating pump is communicated with the first branch pipe and the second branch pipe, first branch pipe is connected with the atomizer water inlet being arranged in atomisation tower tower body, second branch pipe is connected with sewage disposal system.The utility model structure is simple, simple installation, can greatly reduce the discharge amount of exhaust gas, meets the requirement of industry energy conservation environmental protection, increases environmental benefit, productivity effect.
Description
Technical field
The utility model relates to Chemical Manufacture tail gas disposal technique fields, more particularly, to nuisance in a kind of reduction tail gas
The separation system of matter content.
Background technique
In order to protect environment for human survival, country increases environmentally friendly dynamics in recent years, and arranges Chemical Manufacture enterprise emphatically
The VOCs put in tail gas is controlled." stationary source exhaust gas " requirement promulgated according to country: the harmful substance in tail gas contains
Amount is no more than 5mg/Nm3.But using existing conventional tail gas treatment process, harmful substance contents can only be reduced to 200-
300mg/Nm3；Alternatively, being just able to satisfy above-mentioned after having to pass through multiple coolings, electrostatic capture equipment progress multi-stage separation, absorption
Standard qualified discharge, equipment investment is big, process route is long, adjusting is cumbersome, time-consuming, labour-consuming, has seriously affected production efficiency, together
When, maintenance of equipment maintenance workload increases, the production area security risk factor increases, and has greatly aggravated business burden.
Summary of the invention
The utility model provides a kind of separation system for reducing harmful substance contents in tail gas, it is therefore intended that solves existing tail
The problem that Flash Gas Compression Skid System discharge is not up to standard or investment is larger.
To achieve the above object, the utility model can take following technical proposals:
The separation system of harmful substance contents in reduction tail gas described in the utility model, including exhaust pipe, the tail
Feed channel is connected with the top air inlet of atomisation tower, and the bottom of the atomisation tower is provided with gas-liquid mixed outlet, the gas-liquid
Mixed export is connected by pipeline with the gas-liquid separator import being arranged in the middle part of deentrainment tower inner cavity, on the gas-liquid separator
It is provided in the deentrainment tower tower body of side except mist device, the top vent of the deentrainment tower is connected with blowdown stack, deentrainment tower
Bottom drain on be provided with water circulating pump, the outlet conduit of the water circulating pump is communicated with the first branch pipe and the second branch pipe,
First branch pipe is connected with the atomizer water inlet being arranged in atomisation tower tower body, second branch pipe and sewage treatment system
System is connected.
The atomizer be it is multiple, structure is identical, includes the stainless steel nozzle core that is arranged in nozzle and by not
The antidrip liquid storage chamber of the back taper for steel wire composition of becoming rusty, the stainless steel nozzle core are pierced by and prolong from antidrip liquid storage chamber center
Extend to nozzle end, the stainless steel diversion blade being additionally provided with around stainless steel nozzle core in the antidrip liquid storage chamber.
The nozzle and horizontal direction of the atomizer are arranged in 45-90 ° of angle.
The mist device that removes includes multiple bellows-like membranes being stacked up and down, and the bending part of the bellows-like membrane welds
There is wing shape to trap groove.
The separation system of harmful substance contents in reduction tail gas provided by the utility model, by existing offgas duct road
An atomisation tower, a deentrainment tower and a water circulating pump are added, that is, can effectively reduce the content of harmful substance in tail gas, make tail
Gas discharge reaches national regulation；Its structure is simple, simple installation, can substantially reduce the spending in terms of enterprise's vent gas treatment, improves
The stability of entire production system, while reducing the discharge amount of exhaust gas, the requirement of industry energy conservation environmental protection is met, ring is increased
Protect benefit, productivity effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram of atomizer in Fig. 1.
Fig. 3 is the portion the A enlarged drawing in Fig. 2.
Fig. 4 is in Fig. 1 except the structural schematic diagram of bellows-like membrane stacked up and down in mist device.
Specific embodiment
As shown in Figure 1, the separation system described in the utility model for reducing harmful substance contents in tail gas, including offgas duct
Road 1, the exhaust pipe 1 are connected with the top air inlet of atomisation tower 2, and the bottom of atomisation tower 2 is provided with gas-liquid mixed outlet, gas
Liquid mixed export is connected by pipeline with 4 import of gas-liquid separator being arranged in the middle part of 3 inner cavity of deentrainment tower, gas-liquid separator 4
It is provided in 3 tower body of deentrainment tower of top except mist device 5, the top vent of deentrainment tower 3 is connected with blowdown stack, deentrainment tower
Water circulating pump 6 is provided on 3 bottom drain, the outlet conduit of water circulating pump 6 is communicated with the first branch pipe 7 and the second branch pipe 8,
First branch pipe 7 is connected with the atomizer water inlet being arranged in 2 tower body of atomisation tower, the second branch pipe 8 and sewage disposal system phase
Connection.
Wherein, atomizer 9 is arranged with multiple from top to bottom in atomisation tower 2 as shown in Figure 2,3, and structure is identical,
It include the antidrip liquid storage for the stainless steel nozzle core 9.2 and back taper being made of stainless steel cloth being arranged in nozzle 9.1
Chamber 9.3, stainless steel nozzle core 9.2 are pierced by from 9.3 center of antidrip liquid storage chamber and extend to 9.1 end of nozzle, antidrip liquid storage
The stainless steel diversion blade 9.4 being additionally provided in chamber 9.3 around stainless steel nozzle core 9.2.High speed into nozzle 9.1 is de-
Saline flow first passes through guide vane 9.4, forms a centrifugation vortex under the high-speed rotation effect of guide vane 9.4；It is antidrip
Leakage liquid storage chamber 9.3 be located at around guide vane 9.4, can be effectively prevented water flow largely along stainless steel nozzle core 9.2 flow out and
What is formed is unfavorable for the big water droplet of atomization, so that guarantee to spray from nozzle 9.1 is imperceptible open-core type droplet, above-mentioned mist
Changing partial size can control at 1-15 μm, reach finer atomization effect.
Nozzle and horizontal direction are arranged in 45-90 ° of angle.High speed desalted water water flow forms one under the action of guide vane
A centrifugation vortex sprays imperceptible open-core type droplet from nozzle, and atomizing particle size can be controlled at 1-15 μm, reaches fine
Atomizing effect.Process tail gas comes into full contact with desalted water atomizing particle, while improving absorption efficiency, moreover it is possible to reduce desalted water
Consumption.Above-mentioned atomizer does not need air auxiliary, and system and device is simple；It is subtle to spray cloud point, atomization sufficiently, saves
Can be water-saving, at low cost, effect is good；Spray head does not block, water-tight, and inner-rotary type automated cleaning is handled through advanced Forging Technology
The stainless steel spray head crossed, it is durable, it is 2.5 times of service life of similar nozzle.
As shown in figure 4, above-mentioned except mist device 5 includes multiple bellows-like membranes 5.1 being stacked up and down, each bellows-like membrane
5.1 bending part is welded with wing shape trapping groove 5.2.
The cross-flow of gas and liquid two phases processing medium is distributed in deentrainment tower 3, and gas and liquid two phases are then radially distributed in diaphragm, are caught
The drop caught is past to flow down, the gas cap liquid phenomenon that there is no traditional deentrainment tower gases to upper, liquid to whereabouts.Due to diaphragm be by
Certain angle is converted into corrugated, and each ripple center weld has several wing shapes to trap hook groove, when small mist with air-flow into
Enter in diaphragm wing, just as entering in labyrinth, under the action of flowage friction, electrification mist particle is formed surely on diaphragm
Fixed liquid film, liquid film adsorb mist again, and good interaction assembles mist and is able to separation removal, therefore it has electrostatic, ultrafiltration and suction
Attached comprehensive effectiveness.Its resistance is small, is not easy to plug, long service life, removes mist efficiency > 99.9%, removes 0.1 μm of mist precision,
The object to be removed of separable ppb grades of removal, realizes qualified discharge.
It after pretreatment tail gas enters atomisation tower 2, is in contact with atomization desalted water, contained harmful substance is being diluted, and is formed
Bulky grain droplet；Band liquid tail gas enters deentrainment tower 3 later, gas-liquid separation is carried out in gas-liquid separator 4, the tail gas containing droplet
Through further being separated except mist device 5, through exhaust chimney qualified discharge after removal harmful substance；In gas-liquid separator 4 and remove mist
Liquid phase that device 5 is isolated, droplet then enter back into atomisation tower 2 by water circulating pump 6 after the accumulation of 3 bottom of deentrainment tower, as atomization
Water is recycled.
The utility model becomes big drop by the method to tail gas spray atomizing water, by micro change constant, by small mist,
Acid mist is set to expand 100 times, 100 times, 10000 times ..., the harmful substance mist after will be enlarged by, dilute using mechanical deentrainment tower
Foam carries out gas-liquid separation, separates the harmful substance mist content that 99.5% big drop is also equivalent in protocercal tail gas and separates
99.5%, then by the content of harmful substance in tail gas from 200-300mg/Nm3It is reduced to 5mg/Nm3It is no longer just problem.It is real
Proof is trampled, the utility model achieves good reality in the treating tail gas that northwest Methanol Plant methanol-fueled exhaust prepares sulfuric acid apparatus
Apply effect.
Claims (4)
1. a kind of separation system for reducing harmful substance contents in tail gas, it is characterised in that: including exhaust pipe (1), the tail
Feed channel (1) is connected with the top air inlet of atomisation tower (2), and the bottom of the atomisation tower (2) is provided with gas-liquid mixed outlet,
The gas-liquid mixed outlet is connected by pipeline with gas-liquid separator (4) import being arranged in the middle part of deentrainment tower (3) inner cavity, institute
It states and is provided in deentrainment tower (3) tower body above gas-liquid separator (4) except mist device (5), the top vent of the deentrainment tower (3)
Mouth is connected with blowdown stack, is provided on the bottom drain of deentrainment tower (3) water circulating pump (6), the water circulating pump (6)
Outlet conduit is communicated with the first branch pipe (7) and the second branch pipe (8), is arranged in first branch pipe (7) and atomisation tower (2) tower body
Atomizer (9) water inlet is connected, and second branch pipe (8) is connected with sewage disposal system.
2. the separation system according to claim 1 for reducing harmful substance contents in tail gas, it is characterised in that: the atomization
Spray head (9) be it is multiple, structure is identical, includes stainless steel nozzle core (9.2) in nozzle (9.1) being arranged and by stainless steel
The antidrip liquid storage chamber (9.3) for the back taper that silk screen is constituted, the stainless steel nozzle core (9.2) is from antidrip liquid storage chamber (9.3)
Center is pierced by and extends to nozzle (9.1) end, is additionally provided in the antidrip liquid storage chamber (9.3) positioned at stainless steel nozzle core
(9.2) the stainless steel diversion blade (9.4) around.
3. the separation system according to claim 2 for reducing harmful substance contents in tail gas, it is characterised in that: the atomization
The nozzle and horizontal direction of spray head are arranged in 45-90 ° of angle.
4. the separation system according to claim 1 for reducing harmful substance contents in tail gas, it is characterised in that: the demisting
Foam device (5) includes multiple bellows-like membranes (5.1) being stacked up and down, and the bending part of the bellows-like membrane (5.1) is welded with
Wing shape traps groove (5.2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820629216.8U CN208275221U (en) | 2018-04-28 | 2018-04-28 | Reduce the separation system of harmful substance contents in tail gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820629216.8U CN208275221U (en) | 2018-04-28 | 2018-04-28 | Reduce the separation system of harmful substance contents in tail gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208275221U true CN208275221U (en) | 2018-12-25 |
Family
ID=64752489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820629216.8U Expired - Fee Related CN208275221U (en) | 2018-04-28 | 2018-04-28 | Reduce the separation system of harmful substance contents in tail gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208275221U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11383195B2 (en) | 2019-11-21 | 2022-07-12 | Industrial Technology Research Institute | Device for capturing particles |
-
2018
- 2018-04-28 CN CN201820629216.8U patent/CN208275221U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11383195B2 (en) | 2019-11-21 | 2022-07-12 | Industrial Technology Research Institute | Device for capturing particles |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181225 |