CN105107357A - Membrane filtration reactor - Google Patents
Membrane filtration reactor Download PDFInfo
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- CN105107357A CN105107357A CN201510524735.9A CN201510524735A CN105107357A CN 105107357 A CN105107357 A CN 105107357A CN 201510524735 A CN201510524735 A CN 201510524735A CN 105107357 A CN105107357 A CN 105107357A
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- tank body
- membrane filtration
- filter plate
- filtration reactor
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Abstract
The invention discloses a membrane filtration reactor. The membrane filtration reactor comprises a tank body, a gas outlet is formed in the top of the tank body, a gas inlet is formed in the middle of the tank body, a liquid outlet is formed in the lower portion of the tank body, and a liquid inflow pipe is arranged on the upper portion of the tank body; the liquid inflow pipe horizontally extends into the tank body, and a plurality of spray nozzles with downward openings are formed in the lower end of the liquid inflow pipe; a round filtering plate is arranged on the lower portion of the tank body and located below the gas inlet and above the liquid outlet; a plurality of clamping grooves are evenly distributed along the circumference of the inner wall of the lower portion of the tank body; the periphery of the filtering plate stretches into the clamping grooves, and gaps are reserved between the filtering plate and the bottom walls of the clamping grooves as well as between the filtering plate and the side walls of the clamping grooves; a plurality of supporting columns are vertically and symmetrically arranged on the bottom wall of the tank body, and the upper portions of the supporting columns are connected with the bottoms of filtering elements through springs. Thus the state that gas and liquid are firstly mixed and then filtered, and the state that gas and liquid are mixed and filtered at the same time are formed, the problem that sediment intercepted by the filtering plate can cause blockage easily is solved, the service life of the filtering plate is prolonged, and the membrane filtration reactor can be widely applied in similar production technologies of chemical engineering, pharmacy and other industries.
Description
Technical field
The invention belongs to field of Environment Protection, particularly a kind of membrane filtration reactor.
Background technology
Wet ammonia process desulfurizing technology is more ripe at present, , industrialized sulfur removal technology, with the flue gas of ammonia absorbent washing sulfur dioxide, form the absorbing liquid of ammonium sulfate-ammonium sulfite-water, ammonium sulfite in this absorbing liquid has absorbability well to sulfur dioxide, it is absorbent main in wet-type ammonia, absorb the absorbing liquid of sulfur dioxide, different processing methods is had according to the situation of different byproduct, wherein because ammonia-ammonium sulfite sulfur removal technology is fairly simple, byproduct of ammonium sulfate can be used as agricultural fertilizer, the demand of the Development of FGD of China can be adapted to preferably, thus be used more widely, the principle of ammonia-ammonium sulfite sulfur removal technology adopts the sulfur dioxide queen in ammonia absorbent absorption flue gas, the compressed air oxygen of absorbing liquid changes into ammonium sulfate, again through heating evaporation crystallization ammonium sulfate, filtration drying obtains product, but the fine dust etc. brought into flue gas also will enter in absorbing liquid, when byproduct-ammonium sulfate crystallization, the micronic dust easily brought into by flue gas, as nucleus, finally has a strong impact on the quality of byproduct.So how to realize the fully oxidized removal being converted into ammonium sulfate and impurity of ammonium sulfite, be this technology wide popularization and application, the important restriction factor reducing operating cost.
But be converted into for byproduct of ammonium sulfate for the receipts imbibition containing ammonium sulfite, except the demand of oxidation, also needed to filter micronic dust, have multiple at present for the mode of filtering containing micronic dust liquid, wherein mainly adopt membrane filtration pattern, for this reason, designer set up a set of membrane module in addition often before or after oxidation reactor, whole apparatus structure is made to become very complicated like this, operation inconvenience, and high cost, running power consumption is excessive, in the running of film, micronic dust is trapped and is adsorbed on film surface, cause the pollution of film, cause the decay of effluent flux, affect normal operation.
Summary of the invention
The invention provides a kind of membrane filtration reactor, the filter plate that can shake is added at original reactor lower part, not only make gas-liquid form the state that first mixing refilters, mixing limit, limit is filtered, and the sediment solving filter plate interception easily cause its problem of blocking, and extends the service life of filter plate.
In order to solve the problem, the technical solution used in the present invention is such, a kind of membrane filtration reactor, comprise tank body, tank body top sets out gas port, middle part arranges air inlet, bottom arranges liquid outlet, top arranges feed tube, described feed tube level to stretch in tank body and has multiple downward opening nozzle in its lower end, tank body lower part arranges circular filter plate, described circular filter plate is positioned at the below of air inlet, the top of liquid outlet, tank body lower part inwall is uniform multiple draw-in groove circumferentially, the periphery of described filter plate is stretched in draw-in groove and also and can be left gap between draw-in groove diapire and sidewall, on the diapire of tank body, vertical symmetry arranges multiple support column, described support column top is connected with bottom filter element respectively by spring.
Wherein, eccentric circular wheel is set above described circular filter plate, eccentric circular wheel is connected with the motor be placed in outside tank body by rotating shaft, and described eccentric circular wheel axle center is less than the maximum distance of eccentric circular wheel axle center to off-centre operation wheel rim to the vertical range at circular filter plate top.This eccentric circular wheel not only strengthens the shake of filter plate, and its stirring can drive gas-liquid mixed, the carrying out of speed up gas and liquid oxidation reaction.
Conveniently to the dismounting of filter plate, described draw-in groove runs through and stretches out tank wall and be threaded with tank wall, and one end that draw-in groove stretches out tank wall is connected with handle.
In order to reduce the friction between filter frame and tank body, on the other hand, prevent reactant liquor to walk and without filtration from filter frame and leaking between tank body diapire and sidewall, the periphery of circular filter plate and be provided with sealed elastic element in gap between draw-in groove diapire and sidewall.
Wherein, described circular filter plate is made up of with the ceramic element be placed in filter frame the filter frame of circle, and the aperture of ceramic element is 0.01-0.1 μm.
In order to support filter plate better, described support column is 3, and the position at support column place is 1/2 of its radius to the distance in the center of circle, bottom of tank body, and the angle between adjacent 2 support columns is 120 degree.
Beneficial effect:
1, membrane filtration reactor of the present invention has the effect of membrane filtration and oxidation concurrently simultaneously, filter plate is located in tank body, gas-liquid is made to form the state that first mixing refilters, mixing limit, limit is filtered, while the absorbing liquid passed into through the feed tube on retort top is sprayed by nozzle, through the air inlet pipe ejection gas of tank body lower part, both carry out reverse gas-liquid mixed in tank, oxidation reaction occurs and generates ammonium sulfate; Absorbing liquid containing the complete sulfur dioxide gas of part unreacted continues to move downward, during by filter plate, filter plate is impelled to move downward, filter plate can rebound by the spring under filter plate, thus filter plate is vibrated, bubble can be smashed by this vibration on the one hand further, and gas-liquid mixes again, improve gas-liquid mixed efficiency, enhance oxidation effectiveness; In addition on the one hand, the most of micronic dust (solid phase) being positioned at the absorption of filter plate upper surface can be vibrated, can not be trapped or be adsorbed on film surface by micronic dust, the decline causing membrane flux improves filter effect, extends the service life of filter plate, solves in crystal system, during ammonium sulfate (comprising a small amount of ammonium sulfite) crystallization, these micronic dusts, as nucleus, are wrapped in crystal, drastically influence the problem of product quality.
2, present device compact conformation, treating capacity is large, equipment investment is low, production cost is low, have the functions such as mixing, reaction, separation concurrently simultaneously, also can be used widely in the similar production technology in the industry such as chemical industry and pharmacy.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
In order to deepen the understanding of the present invention, below in conjunction with embodiment and accompanying drawing, the invention will be further described, and this embodiment only for explaining the present invention, does not form limiting the scope of the present invention.
See Fig. 1, a kind of membrane filtration reactor, comprise tank 1, tank body 1 top sets out gas port 2, middle part arranges air inlet 3, bottom arranges liquid outlet 4, top arranges feed tube 5, described feed tube 5 level to stretch in tank body 1 and has multiple downward opening nozzle 6 in its lower end, tank body 1 bottom arranges circular filter plate 7, circular filter plate 7 is positioned at the below of air inlet 3, the top of liquid outlet 4, tank body lower part inwall is uniform multiple draw-in groove 8 circumferentially, the periphery of described filter plate 7 to stretch in draw-in groove 8 and can and draw-in groove sidewall between leave gap, conveniently to the dismounting of filter plate, described draw-in groove 8 runs through and stretches out tank wall and be threaded with tank wall, one end that draw-in groove stretches out tank wall is connected with handle, in order to reduce the friction between filter plate and draw-in groove, on the other hand, prevent from mixed liquor from leaking bottom filter plate and draw-in groove and between sidewall walking and without filtration, the periphery of circular filter plate and arrange sealed elastic element between draw-in groove sidewall and diapire, on the diapire of tank body, vertical symmetry arranges many support columns 9, as preferred embodiment, support column is 3, the position at support column place is 1/2 of its radius to the distance in the tank base center of circle, angle between adjacent 2 support columns is 120 degree, and described support column 9 top is connected with bottom filter plate 7 respectively by spring 10.
Wherein, eccentric circular wheel 11 is set above described circular filter plate, eccentric circular wheel is connected with the motor 12 be placed in outside tank body by rotating shaft, described eccentric circular wheel axle center is less than the maximum distance of eccentric circular wheel axle center to off-centre operation wheel rim to the vertical range at circular filter plate top, this eccentric circular wheel not only strengthens the shake of filter plate, and its stirring can drive gas-liquid mixed, the carrying out of accelerated oxidation reaction.
Wherein, described circular filter plate is made up of with the ceramic element be placed in filter frame the filter frame of circle, and the aperture of ceramic element is 0.01-0.1 μm.
SO2 in flue gas is generated ammonium sulfite by after ammonia absorption in desulfurizing tower, part is ammonium sulfate by the dioxygen oxidation in flue gas simultaneously, form the absorbing liquid containing ammonium sulfate and a small amount of ammonium sulfite, there is chemical absorbing react because flue gas directly contacts at Ta Nei and ammoniacal liquor, the heavy metal brought into flue gas and fine dust etc. are also absorbed by liquid absorption, and form the absorbing liquid (containing ammonium sulfate and a small amount of ammonium sulfite) containing micronic dust.
Sprayed by nozzle 61 by being entered by the feed tube 5 on membrane filtration reactor top of the present invention containing micronic dust absorbing liquid of drawing bottom desulfurizing tower, air inlet pipe 3 introduces hot-air simultaneously, carry out first time when gas moves upward mixes with the absorbing liquid moved downward, and in the ammonium sulfite in absorbing liquid and hot-air, oxygen generation oxidation reaction generates ammonium sulfate; Mixed liquor (mixed liquor containing gas and absorbing liquid) continues to move downward, impact filter plate, due to the effect of spring bottom filter plate, filter plate can vibrate, impel time air to carry out second time with mixed liquor to mix, there is oxidation reaction and generate ammonium sulfate in the oxygen in mixed liquor in unreacted ammonium sulfite and gas, mixed liquor after passing through filter plates again, micronic dust in mixed liquor is filtered, and clear liquid is discharged from leakage fluid dram and carried out crystallization.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. a membrane filtration reactor, it is characterized in that, comprise tank body, tank body top sets out gas port, middle part arranges air inlet, bottom arranges liquid outlet, top arranges feed tube, described feed tube level to stretch in tank body and has multiple downward opening nozzle in its lower end, tank body lower part arranges circular filter plate, described circular filter plate is positioned at the below of air inlet, the top of liquid outlet, tank body lower part inwall is uniform multiple draw-in groove circumferentially, the periphery of described filter plate is stretched in draw-in groove and also and can be left gap between draw-in groove diapire and sidewall, on the diapire of tank body, vertical symmetry arranges multiple support column, described support column top is connected with bottom filter element respectively by spring.
2. membrane filtration reactor according to claim 1, it is characterized in that, eccentric circular wheel is set above described circular filter plate, eccentric circular wheel is connected with the motor be placed in outside tank body by rotating shaft, and described eccentric circular wheel axle center is less than the maximum distance of eccentric circular wheel axle center to off-centre operation wheel rim to the vertical range at circular filter plate top.
3. membrane filtration reactor according to claim 1, is characterized in that, described draw-in groove runs through and stretches out tank wall and be threaded with tank wall, and one end that draw-in groove stretches out tank wall is connected with handle.
4. membrane filtration reactor according to claim 1, is characterized in that, the periphery of circular filter plate and be provided with sealed elastic element in gap between draw-in groove diapire and sidewall.
5. membrane filtration reactor according to claim 1, is characterized in that, described circular filter plate is made up of with the ceramic element be placed in filter frame the filter frame of circle.
6. membrane filtration reactor according to claim 5, is characterized in that, the aperture of ceramic element is 0.01-0.1 μm.
7. membrane filtration reactor according to claim 1, is characterized in that, described support column is 3, and the position at support column place is 1/2 of radius to the distance in the center of circle, bottom of tank body, and the angle between adjacent 2 support columns is 120 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510524735.9A CN105107357A (en) | 2015-08-21 | 2015-08-21 | Membrane filtration reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510524735.9A CN105107357A (en) | 2015-08-21 | 2015-08-21 | Membrane filtration reactor |
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| Publication Number | Publication Date |
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| CN105107357A true CN105107357A (en) | 2015-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510524735.9A Pending CN105107357A (en) | 2015-08-21 | 2015-08-21 | Membrane filtration reactor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106807246A (en) * | 2016-12-27 | 2017-06-09 | 安徽江南鸣放电子科技有限公司 | A kind of filter |
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| CN2928204Y (en) * | 2006-04-29 | 2007-08-01 | 杭州南方环境净化设备有限公司 | Multiple tube micro vibration ash cleaning mechanism for duster |
| CN201127878Y (en) * | 2007-11-08 | 2008-10-08 | 何达明 | Dry-type lacquer fog purifier |
| CN201445872U (en) * | 2009-04-30 | 2010-05-05 | 南京盛唐电力控制系统有限公司 | On-line filter for automatically removing ash |
| CN204073839U (en) * | 2014-09-25 | 2015-01-07 | 张剑 | Devulcanizing pan |
| CN105056679A (en) * | 2015-08-11 | 2015-11-18 | 中国五环工程有限公司 | Method and device for removing PM2.5 (particulate matter) in WFGD (wet flue gas desulfurization) process |
| CN204911203U (en) * | 2015-08-21 | 2015-12-30 | 南京白云化工环境监测有限公司 | Reactor is strained to membrane |
-
2015
- 2015-08-21 CN CN201510524735.9A patent/CN105107357A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2928204Y (en) * | 2006-04-29 | 2007-08-01 | 杭州南方环境净化设备有限公司 | Multiple tube micro vibration ash cleaning mechanism for duster |
| CN201127878Y (en) * | 2007-11-08 | 2008-10-08 | 何达明 | Dry-type lacquer fog purifier |
| CN201445872U (en) * | 2009-04-30 | 2010-05-05 | 南京盛唐电力控制系统有限公司 | On-line filter for automatically removing ash |
| CN204073839U (en) * | 2014-09-25 | 2015-01-07 | 张剑 | Devulcanizing pan |
| CN105056679A (en) * | 2015-08-11 | 2015-11-18 | 中国五环工程有限公司 | Method and device for removing PM2.5 (particulate matter) in WFGD (wet flue gas desulfurization) process |
| CN204911203U (en) * | 2015-08-21 | 2015-12-30 | 南京白云化工环境监测有限公司 | Reactor is strained to membrane |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106807246A (en) * | 2016-12-27 | 2017-06-09 | 安徽江南鸣放电子科技有限公司 | A kind of filter |
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Application publication date: 20151202 |
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