CN205462268U - Modified active carbon entrapment pipe of flue gas mercury - Google Patents
Modified active carbon entrapment pipe of flue gas mercury Download PDFInfo
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- CN205462268U CN205462268U CN201620094300.5U CN201620094300U CN205462268U CN 205462268 U CN205462268 U CN 205462268U CN 201620094300 U CN201620094300 U CN 201620094300U CN 205462268 U CN205462268 U CN 205462268U
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- trap tube
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 142
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 title claims abstract description 57
- 229910052753 mercury Inorganic materials 0.000 title claims abstract description 30
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 239000003546 flue gas Substances 0.000 title claims abstract description 20
- 229910052799 carbon Inorganic materials 0.000 title abstract description 8
- 239000007789 gas Substances 0.000 claims abstract description 24
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000002955 isolation Methods 0.000 claims abstract description 15
- 239000000779 smoke Substances 0.000 claims abstract description 10
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 6
- 210000002268 wool Anatomy 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims abstract description 5
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Chemical group [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 claims description 93
- 238000010521 absorption reaction Methods 0.000 claims description 21
- 239000007943 implant Substances 0.000 claims description 11
- 238000012986 modification Methods 0.000 claims description 6
- 230000004048 modification Effects 0.000 claims description 6
- 239000010453 quartz Substances 0.000 claims description 5
- KKVNLEABYIZQGI-UHFFFAOYSA-I [C+4].[I-].[K+].[I-].[I-].[I-].[I-] Chemical class [C+4].[I-].[K+].[I-].[I-].[I-].[I-] KKVNLEABYIZQGI-UHFFFAOYSA-I 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000011049 filling Methods 0.000 claims description 2
- 238000001179 sorption measurement Methods 0.000 claims description 2
- 239000003344 environmental pollutant Substances 0.000 abstract description 2
- 231100000719 pollutant Toxicity 0.000 abstract description 2
- 239000000945 filler Substances 0.000 abstract 1
- 238000012856 packing Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 23
- 230000000694 effects Effects 0.000 description 13
- 238000002360 preparation method Methods 0.000 description 12
- 239000003610 charcoal Substances 0.000 description 11
- 230000008676 import Effects 0.000 description 10
- 238000005070 sampling Methods 0.000 description 10
- 239000007864 aqueous solution Substances 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 238000001035 drying Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000011521 glass Substances 0.000 description 6
- 238000012544 monitoring process Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 238000005554 pickling Methods 0.000 description 5
- 238000011160 research Methods 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 235000013162 Cocos nucifera Nutrition 0.000 description 4
- 244000060011 Cocos nucifera Species 0.000 description 4
- 239000012153 distilled water Substances 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 229920000742 Cotton Polymers 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- ICIWUVCWSCSTAQ-UHFFFAOYSA-M iodate Chemical compound [O-]I(=O)=O ICIWUVCWSCSTAQ-UHFFFAOYSA-M 0.000 description 2
- 229910052740 iodine Inorganic materials 0.000 description 2
- 239000011630 iodine Substances 0.000 description 2
- 238000003760 magnetic stirring Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000002203 pretreatment Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000003708 ampul Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000026045 iodination Effects 0.000 description 1
- 238000006192 iodination reaction Methods 0.000 description 1
- 150000002497 iodine compounds Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The utility model belongs to the technical field of smoke pollutants detects, a modified active carbon entrapment pipe of flue gas mercury is related to, modified active carbon entrapment pipe is including linear entrapment pipe body, the both ends of entrapment pipe body are equipped with flue gas entry and exhanst gas outlet respectively, along the flue gas passing hand, this internal packing in succession in proper order of entrapment pipe has I section isolation, adsorbs I section, keeps apart stage II, and adsorb stage II and keep apart III sections, it is modified active carbon to adsorb I section filler with adsorbing stage II, keeping apart I section, keeping apart stage II, the material of keeping apart III sections is the silica wool. The entrapment effective in industrial boiler, industrial stoves, power station flue gas the real -time supervision of mercury concentration, can satisfy EPA30B standard requirements.
Description
Technical field
This utility model belongs to flue gas pollutant detection field, particularly relates to changing of a kind of gas mercury
Property activated carbon trap tube.
Background technology
Hydrargyrum is one of trace heavy metals that environment toxic is the strongest, has persistency, easily
Animal migration and high biological accumulation property, mercury pollution has become as the most of greatest concern global
One of environmental problem.China's Mercury In The Air discharge accounts for the 30～40% of the artificial mercury emissions in the whole world, occupies
The world is the first.The current Chinese government pays much attention to mercury pollution preventing and controlling.But due in the past
Research to gas mercury puts into not, causes Basic Research Results famine, about flue gas
The sampling of hydrargyrum, detect and control to be substantially at space state.Existing sample detecting method bag
Include Ontario method (OHM) and 30B method etc..Ontario method (OHM) is a kind of liquid
Absorption process, it is adaptable to the sample detecting of hydrargyrum in various industrial smokes, detection data are accurate, inspection
Survey and limit low (< 0.5 μ g/Nm3), but OHM method device therefor is relatively big, operates more complicated,
Need to be furnished with professional, detection cycle length and testing cost high.At present, Environmental Protection in America supervisor
30B method is obtained extensively in actual samples detects by department as correction sample detecting method
Application.But, the activated carbon sampling tube that 30B method is used is expensive, domestic every
The price of sampling tube, between 60～150 dollars, adds the financial burden of environmental monitoring unit.
The sampling of hydrargyrum and detection are basis and the preconditions of mercury pollution control, therefore need badly open
Send out gas mercury sampling tube based on activated carbon a kind of, be applied to adopting of hydrargyrum in industrial smoke
Among the comparison of sample detection and Monitoring Data is analyzed, the comprehensive monitoring work for gas mercury provides
Service, control and improvement for mercury emissions provide technological reserve, advance China's Mercury In The Air discharge
Environmental monitoring and management.
Chinese patent CN87206619 discloses a kind of work surveying in hydrargyrum technology for earth gas
Property charcoal mercury-traping tube, has outer layer glass tube, by having the glass tubing of three scrobicular rings, between scrobicular ring
Equipped with inner layer glass tube, it is respectively provided with glass cotton at scrobicular ring two, equipped with activated carbon between glass cotton
Being constituted, its trap tube surveys hydrargyrum technical field, and wherein glass tubing structure complexity for earth gas,
Add the complexity that trap tube is filled.
Chinese patent CN103721676A discloses a kind of iodate activated carbon and preparation method thereof
With application, said method comprising the steps of: use pickling processes mode to process activated carbon,
Using iodine compound that activated carbon is carried out iodine and iodide afterwards, it has the disadvantage that activity
The complex pretreatment of charcoal, pickling easily increases the unstability of activated carbon, causes physical absorption
The mercury content of state increases, and affects the measurement result of final mercury content, and pickling is relatively costly,
Complex process.
Chinese patent CN103977763A discloses a kind of efficient suction for gaseous mercury sampling
The preparation method of attached dose, the pre-treatment to activated carbon includes deionized water immersion, pickling impurity removal
Process, and during iodate, iodination reagent kind used is more, operation complexity, and application documents
Do not disclose the effect of the activated carbon prepared further.
Domestic a lot of scholar has done a certain amount of research to activated carbon modified, but also in starting
Stage, and it is concentrated mainly on the research of method of modifying, and for the design of gas mercury trap tube
Research relative deficiency, additionally, the modified activated carbon of report is mainly used in hydrargyrum in industrial smoke at present
Removing, it is higher that existing flue gas trapping pipe depends on import cost, it is necessary to develop one
With low cost and testing result activated carbon trap tube accurately.
Utility model content
First purpose of the present utility model is the defect and deficiency existed for prior art, carries
For the modified activated carbon trap tube of a kind of gas mercury, there is following structure: include linear catching
Header body, a length of the 160～220mm of described trap tube body, internal diameter is 7-9mm, institute
That states trap tube body is respectively arranged at two ends with smoke inlet and exhanst gas outlet, along flue gas by direction,
This internal being filled with the most continuously of described trap tube isolates I section, adsorbs I section, isolates II section,
Adsorb II section and isolation III section, described absorption I section and the implant modified activated carbon of absorption II section.
Preferably, adsorb I section and be each independently 2.5～3.5 with the draw ratio adsorbing II section,
It is further preferred that the draw ratio of absorption I section and absorption II section is 3.
Preferably, described isolation I section, isolate II section, the implant isolating III section is quartz
Cotton, the filling length of further preferred three is identical and for absorption I section or absorption II segment length
1/4～1/3.
Preferably, the length of described trap tube body inner stuffing accounts for trap tube total length
1/3～1/2.
Preferably, the material of described trap tube body is quartz.
Preferably, described isolation III section is positioned at described smoke outlet.
Preferably, the sectional area of described exhanst gas outlet constantly reduce formation one taper uncovered.
This utility model additionally provides the optimum structure of described modified activated carbon trap tube: include straight
The trap tube body of line style, a length of the 160～220mm of described trap tube body, internal diameter is
7-9mm, described trap tube body be respectively arranged at two ends with smoke inlet and exhanst gas outlet, along cigarette
Gas passes through direction, and this internal being filled with the most continuously of described trap tube isolates I section, adsorbs I section,
Isolate II section, adsorb II section and isolation III section；
Wherein, adsorb I section identical with the absorption length of II section, its draw ratio is 2.5～3.5,
The length of three distance pieces is identical and accounts for the 1/4～1/3 of adsorption section length；
Isolating I section, isolate II section, the implant isolating III section is silica wool, adsorbs I section
With the activated carbon that the implant of absorption II section is potassium iodide modification.
Wherein, activated carbon potassium iodide modification is obtained by described modified activated carbon, and it is concrete
Method of modifying is:
(1) by the activated carbon distilled water wash of 20～60 mesh, dry for standby；
(2) activated carbon after drying is placed in potassium iodide aqueous solution, stirs under the conditions of 20-30 DEG C
Mix activation, drying.
In order to obtain hydrargyrum trapping effect preferably modified activated carbon, the work that preferred intensity of the present invention is big
Property charcoal as carrier, be specifically selected from cocoanut active charcoal, coal mass active carbon, active fruit shell carbon,
One in bamboo granular active carbon or Powdered Activated Carbon or at least two.
In order to obtain the modified activated carbon of best results, inventor is strong to variety classes activated carbon
Degree (hardness) be tested, find cocoanut active charcoal maximum intensity, its numerical value up to 96%,
It is better than active fruit shell carbon (94%) and coal mass active carbon (92%), therefore, work of the present invention
Property charcoal is most preferably cocoanut active charcoal.
Further, use specific surface area be the activated carbon of 900～1100/g as carrier time,
It is obtained in that more mercury removal effect.
Preferably, the weight of potassium iodide and activated carbon in potassium iodide aqueous solution in step (2)
Weight ratio is (0.5-3): 100, and correspondingly, the load capacity of potassium iodide is 0.5%～3%.This
The inventor of application finds, after using said method to be modified activated carbon, activated carbon has
Good mercury removal ability.When the load capacity of potassium iodide reaches about 1%, have optimal
Mercury removal ability.Therefore, the preferred potassium iodide of the present invention is (1-1.5) with the weight ratio of activated carbon:
100, more preferably 1:100.
Preferably, described stirring 300-400 turn/min speed conditions under carry out 2-4h, preferably
3h is carried out under 350 turns/min speed conditions.
Preferably, in step (2), described drying is carried out at a temperature of 110-130 DEG C.
The preparation method of currently preferred modified activated carbon comprises the steps:
(1) by the activated carbon distilled water wash of 20-60 mesh, dry for standby；
(2) according to the weight ratio of the weight of potassium iodide in potassium iodide aqueous solution with activated carbon it is
(0.5-3): the ratio of 1, the activated carbon after drying is placed in potassium iodide aqueous solution,
20-30 DEG C, rotating speed 300-400 turns/min under the conditions of stir 2-4h, afterwards in 110-130 DEG C of temperature
Lower drying.
This utility model is when being modified activated carbon, and pre-treatment pertains only to simply to wash dry
Dry, compared with pickling processes, there is advantage simple to operate, with low cost, that stability is high；
Potassium iodide reagents, and accurately control potassium iodide and the amount ratio of activated carbon is only used during iodine and iodide,
The load capacity making potassium iodide reaches 0.5%～3%, and potassium iodide dipping modification can be on the activated carbon
Introduce new hydrargyrum avtive spot, when the flue gas composition containing hydrargyrum enters the pore passage structure of activated carbon,
Hydrargyrum is i.e. captured.
Second purpose of the present utility model is to provide any one modified activated carbon above-mentioned or appoints
Anticipate a kind of modified activated carbon trap tube gas mercury trap in application.
Described trap tube can be used in Industrial Boiler, Industrial Stoves, electricity as disposable sampling tube
The real-time monitoring of mercury in flue gas concentration of standing, with low cost, due to Industrial Boiler, Industrial Stoves,
In generating plant flue gas, the concentration of hydrargyrum is extremely low, generally ppb rank, therefore lives to modified in trap tube
The performance requirement of property charcoal is higher, uses the trapping that modified activated carbon described in the utility model is made
Pipe has splendid absorbability to hydrargyrum, it is possible to meet the requirement of EPA30B standard.
Accompanying drawing explanation
Fig. 1 is the structural representation of modified activated carbon trap tube.
Fig. 2 is experimental example one Activity evaluation figure.
In Fig. 1: 1-trap tube body；101-smoke inlet；102-exhanst gas outlet；201-isolates
I section；202-adsorbs I section；203-isolates II section；204-adsorbs II section；205-isolates III section.
Detailed description of the invention
Following example are used for illustrating this utility model, but are not limited to model of the present utility model
Enclose.The most commercially available acquisition of material related in embodiment, the operation related to is as without special theory
Bright it is this area routine operation.
The preparation method of the modified activated carbon of embodiment 1 potassium iodide load capacity 1%
(1) by 10g 20-60 mesh, specific surface area 900-1000m2The cocoanut active charcoal of/g is used
1000ml distilled water wash 5 times, 120 DEG C of dry for standby；
(2) take 0.1g potassium iodide, add 150ml water, be configured to potassium iodide aqueous solution, then
Activated carbon after step (1) processes in potassium iodide aqueous solution, at 25 DEG C, rotating speed 350 turns/
Stir 4h on the magnetic stirring apparatus divided, filter, activated carbon is placed in 120 DEG C of air dry ovens
Drying.
The preparation method of the modified activated carbon of embodiment 2 potassium iodide load capacity 0.5%
The preparation method of this embodiment is with embodiment 1, and it differs only in the addition of potassium iodide
For 0.05g.
The preparation method of the modified activated carbon of embodiment 3 potassium iodide load capacity 2%
The preparation method of this embodiment is with embodiment 1, and it differs only in the addition of potassium iodide
For 0.2g.
The preparation method of the modified activated carbon of embodiment 4 potassium iodide load capacity 3%
The preparation method of this embodiment is with embodiment 1, and it differs only in the addition of potassium iodide
For 0.3g.
The preparation method of embodiment 5 modified activated carbon
(1) by 10g 20-60 mesh, specific surface area 900-1000m2The bamboo matter granular active carbon of/g
By 1000ml distilled water wash 5 times, 120 DEG C of dry for standby；
(2) take 0.3g potassium iodide, add 200ml water, be configured to potassium iodide aqueous solution, then
The activated carbon after step (1) processes, at 25 DEG C, rotating speed 400 is added in potassium iodide aqueous solution
Rev/min magnetic stirring apparatus on stir 4h, be placed on drying in 130 DEG C of air dry ovens.
Embodiment 6
A kind of modified activated carbon trap tube, concrete structure is with reference to Fig. 1, this kind of activated carbon trap tube
Preparation method can use this area conventional technique means.This modified activated carbon trap tube includes
Linear trap tube body 1, material is quartz, a length of 190mm, external diameter about 10mm,
Internal diameter about 7mm, the two ends of trap tube are provided with smoke inlet 101 and exhanst gas outlet 102, and cigarette
Gas exports 102 sectional areas and is gradually reduced, and forms a taper uncovered, and the internal diameter of tapered distal end is
4mm, external diameter is 7mm；Along flue gas by direction, fill out the most continuously in trap tube body 1
It is filled with isolation I section 201, adsorbs I section 202, isolate II section 203, adsorb II section of 204 He
Isolating III section 205, described absorption I section 202 and the implant adsorbed II section 204 are embodiment
1 or 2 or 3 modified activated carbons prepared, every segment length is about 21mm, isolates I section
201, isolation II section 203, the implant isolated III section 205 are silica wool, and every segment length is about
For 7m.
Exporting purpose that is uncovered for taper and that arrange distance piece is when gas flow rate is excessive, plays
Prevent the effect that activated carbon dissipates.
Above-mentioned modified activated carbon trap tube is disposable product, it is possible to for Industrial Boiler, industry
The real-time monitoring of hydrargyrum concentration in kiln, generating plant flue gas.
The effect of the present invention is further illustrated below by way of experimental example.
Experimental example one
To the activated carbon in the import EPA30B sampling tube bought, the embodiment of the present application 1～4
The modified activated carbon prepared carries out activity rating.
Concrete evaluation methodology is: weighs 25mg activated carbon respectively, is placed in 120 DEG C of fixed beds anti-
Answering in device, the entrance hydrargyrum concentration arranging fixed bed reactors is 145 ± 0.5ug/m3, gas is total
Flow 600ml/min, the concentration of test fixed bed outlet hydrargyrum, Activity evaluation such as Fig. 2
Shown in, as can be seen from Figure 2 compared with import activated carbon, changing of potassium iodide load capacity 0.5%
Property its hydrargyrum of activated carbon trapping effect less than import activated carbon, but potassium iodide load capacity 1%～3%
Its hydrargyrum of modified activated carbon trapping effect is substantially better than import activated carbon, and along with the increasing of load capacity
Adding, trapping effect presents growth trend, but considers the business application cost of trap tube,
In trap tube manufacturing process, the load capacity of potassium iodide selects 1%.
Experimental example two
Use the trap tube modified activated carbon of embodiment 1 (implant be) of embodiment 4 respectively
And the hydrargyrum in the heating plant flue gas of Changchun is trapped by import EPA30B sampling tube, altogether
Parallel carried out three times experiment.The concentration value of the mercury in flue gas that import activated carbon tube records is respectively
It is 15.6 μ g/m3、15.1μg/m3、14.9μg/m3；The flue gas that China made activated carbon pipe records
The concentration value of middle hydrargyrum is respectively 16.0 μ g/m3、15.5μg/m3、15.2μg/m3, by two
Person contrasts discovery, uses the trap tube of embodiment 4 to trap the hydrargyrum in flue gas, passes through
Calculated hydrargyrum concentration after calculated mercury content and the employing of import EPA30B sampling tube
Difference < 1.0 μ g/m3, illustrate that the trap tube of the present invention can be with import substitutes, as once
Mercury content is monitored by property collection tube in real time, and result is accurate.
Experimental example three
To commercial same lot number, 5 batches activated carbon according to step in embodiment 1～4
(1) washing after carry out hydrargyrum background value measure, the background value of hydrargyrum be respectively 0.4ng/g, 0.5
Ng/g, 0.1ng/g, 0.9ng/g, 0.4ng/g, the meansigma methods ＜ 1ng/g of hydrargyrum background value, far
Far below the background value 10ng/g of CN103721676A report, illustrate to use the work of the present invention
When mercury content is measured by property charcoal, the hydrargyrum that activated carbon body the contains impact on measurement result
Less, result is more precisely reliable.
Experimental example four
Quartz ampoule shell, rubber cap, the price of every section of silica wool, the price of every section of activated carbon
Being respectively as follows: 10 yuan, 0.5 yuan, 4 yuan, 5 yuan, through cost accounting, modified activated carbon is caught
The medicament of collector and activated carbon cost are about 33 (10+0.5*2+4*3+5*2) unit/root, i.e.
Making the factor such as consideration mechanical wear and artificial production cost, its cost is caught well below import charcoal
800 yuan/the root of price of collector.
By data above, after using the method for the present invention that activated carbon is modified,
There is splendid activity；With low cost with its modified activated carbon trap tube being prepared as, measure
Result is precisely reliable, alternative imported product.
Although, used general explanation, detailed description of the invention and test, to this reality
Made detailed description with novel, but on the basis of this utility model, can to work some repair
Changing or improve, this will be apparent to those skilled in the art.Therefore, without departing from
These modifications or improvements on the basis of this utility model spirit, belong to this utility model
Claimed scope.
Claims (10)
1. the modified activated carbon trap tube of a gas mercury, it is characterized in that: include linear trap tube body (1), a length of the 160～220mm of described trap tube body (1), internal diameter is 7-9mm, described trap tube body (1) be respectively arranged at two ends with smoke inlet (101) and exhanst gas outlet (102)；Direction is passed through along flue gas, I section (201) of isolation it are filled with the most continuously in described trap tube body (1), adsorb I section (202), isolate II section (203), adsorbing II section (204) and III section (205) of isolation, the implant of described absorption I section (201) and absorption II section (204) is modified activated carbon.
Modified activated carbon trap tube the most according to claim 1, it is characterised in that: activated carbon potassium iodide modification is obtained by described modified activated carbon.
Modified activated carbon trap tube the most according to claim 1, it is characterised in that: the draw ratio of described absorption I section (202) and absorption II section (204) is each independently 2.5～3.5.
Modified activated carbon trap tube the most according to claim 3, it is characterised in that: the draw ratio of described absorption I section (202) and absorption II section (204) is 3.
5. according to the modified activated carbon trap tube described in any one of Claims 1 to 4, it is characterised in that: described isolation I section (201), to isolate II section (203), the implant of isolation III section (205) is silica wool.
Modified activated carbon trap tube the most according to claim 5, it is characterized in that: isolate I section (201), isolate II section (203), isolation III section (205) filling length identical and for absorption I section (202) or absorption II section of (204) length 1/4～1/3.
7. according to the modified activated carbon trap tube described in claim 1 or 2 or 3 or 4 or 6, it is characterised in that: the length of described trap tube body (1) inner stuffing accounts for the 1/3～1/2 of trap tube body (1) total length.
Modified activated carbon trap tube the most according to claim 7, it is characterised in that: the material of described trap tube body (1) is quartz.
9. according to the modified activated carbon trap tube described in claim 1 or 2 or 3 or 4 or 6 or 8, it is characterised in that: it is uncovered that the sectional area of described exhanst gas outlet (102) constantly reduces formation one taper.
Modified activated carbon trap tube the most according to claim 1, it is characterized in that: include linear trap tube body (1), a length of the 160～220mm of described trap tube body (1), internal diameter is 7-9mm, described trap tube body (1) be respectively arranged at two ends with smoke inlet (101) and exhanst gas outlet (102), direction is passed through along flue gas, I section (201) of isolation it are filled with the most continuously in described trap tube body (1), adsorb I section (202), isolate II section (203), adsorb II section (204) and III section (205) of isolation；
Wherein, adsorb I section (202) with absorption II section (204) length identical, its draw ratio is 2.5～3.5, and the length of three distance pieces is identical and accounts for the 1/4～1/3 of adsorption section length；
Isolate I section (201), isolate II section (203), the implant of isolation III section (205) is silica wool, adsorbs the activated carbon that implant is potassium iodide modification of I section (202) and absorption II section (204).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620094300.5U CN205462268U (en) | 2016-01-29 | 2016-01-29 | Modified active carbon entrapment pipe of flue gas mercury |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620094300.5U CN205462268U (en) | 2016-01-29 | 2016-01-29 | Modified active carbon entrapment pipe of flue gas mercury |
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| Publication Number | Publication Date |
|---|---|
| CN205462268U true CN205462268U (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620094300.5U Expired - Fee Related CN205462268U (en) | 2016-01-29 | 2016-01-29 | Modified active carbon entrapment pipe of flue gas mercury |
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| CN (1) | CN205462268U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107329447A (en) * | 2017-08-31 | 2017-11-07 | 天津市热电有限公司 | A kind of heat exchange station intelligent measurement and control system |
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2016
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107329447A (en) * | 2017-08-31 | 2017-11-07 | 天津市热电有限公司 | A kind of heat exchange station intelligent measurement and control system |
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