CN203866270U - Biological desulfurization device - Google Patents
Biological desulfurization device Download PDFInfo
- Publication number
- CN203866270U CN203866270U CN201420300061.5U CN201420300061U CN203866270U CN 203866270 U CN203866270 U CN 203866270U CN 201420300061 U CN201420300061 U CN 201420300061U CN 203866270 U CN203866270 U CN 203866270U
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- CN
- China
- Prior art keywords
- desulfurization
- pipeline
- thionizer
- air
- tower
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- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The utility model discloses a biological desulfurization device. The biological desulfurization device comprises a desulfurization tower, a desulfurization pipeline, an air inlet pipeline, an air outlet pipeline and a nutrient liquid pipeline. The lower portion of the desulfurization tower is communicated with the top of the desulfurization tower through the desulfurization pipeline. A circulation pump and electric valves are arranged on the desulfurization pipeline. A sprayer is arranged at one end, arranged on the top of the desulfurization tower, of the desulfurization pipeline. The lower portion of the desulfurization tower and the top of the desulfurization tower are connected with the air inlet pipeline and the air outlet pipeline respectively. An air inlet management is simultaneously connected with an air inlet and a marsh gas inlet. According to the arrangement, the biological desulfurization device is low in running cost, high in desulfurization capability, stable to run and safe. Air injection ratio is controlled and adjusted through a PLC (programmable logic controller) and a variable-frequency blower, and injection ratio is adjusted according to inlet hydrogen sulfide concentration and outlet oxygen concentration of the system, thus requirement for oxygen during the desulfurization is guaranteed, and injection of the overmuch air into feed gas is avoided.
Description
Technical field
The utility model relates to a kind of biogas, biogas desulfurizer, is specially a kind of bio-desulfurization device.
Background technology
The biogas producing in anerobic sowage technique can be used for generating or purifies and to produce Sweet natural gas, but wherein hydrogen sulfide can heavy corrosion transport pipe and equipment, therefore before utilizing gas, must remove hydrogen sulfide wherein.
Biological process is the emerging sulfur removal technology of a use, more traditional dry method and wet desulfurizing process, its remarkable advantage is that running cost is very low, but requirement that biological desulphurization exists control condition is harsh, desulfuration efficiency is unstable, biological sludge is not easy the problems such as cleaning, has limited applying of this technique.
Patent CN101597529B discloses a kind of " methane bio-desulfurization device ", and its technical process is similar to conventional wet desulfurization, comprises the devices such as thionizer, lean solution groove, rich solution groove, regeneration tank, subsider, technical process more complicated.In this device, doctor solution is weakly alkaline, for preventing its acidifying, need to add alkali lye and regulate pH, and running cost is relatively high.Patent CN201817453U discloses a kind of " outer aeration biological desulfuration device for marsh gas ", its absorption liquid is introduced into the reaction water tank outside thionizer, thionizer reinjects after gas explosion regeneration, but adopt outer aeration mode regeneration, sweetening power is limited, desulfuration efficiency is unstable, and in system air inlet, hydrogen sulfide content is limited to 200～5000ppm.And use clear water as process water in this device, running cost is high.
Utility model content
The problem existing for existing bio-desulfurization device, the purpose of this utility model is to provide a kind of running cost lower, and sweetening power is stronger, stable, safe bio-desulfurization device.
The utility model solves the technical scheme that its technical problem adopts, a kind of bio-desulfurization device, comprise thionizer, desulfurization pipeline, admission passage, outlet pipe and nutritive medium pipeline, described thionizer bottom by desulfurization pipeline connection to thionizer top, described desulfurization pipeline is provided with recycle pump and motorized valve, and one end that desulfurization pipeline is positioned at thionizer top is provided with shower nozzle; Described thionizer bottom is also connected respectively admission passage and outlet pipe with top, and described air intake management connects air intlet and biogas import simultaneously, and described air intlet place is provided with frequency conversion fan and motorized valve, and described biogas ingress is provided with under meter; Described outlet pipe is provided with oxygen concentration detector; Described nutritive medium pipeline is provided with moisturizing treatment system, and described moisturizing treatment system comprises replenisher tank one and replenisher tank two;
The middle part of described thionizer and bottom are also respectively equipped with temperature sensor and liquidometer.
Adopt concrete sulfur removal technology of the present utility model to be:
Utilize recycle pump that doctor solution is squeezed into thionizer top, through shower nozzle, doctor solution is sprayed to filling surface, to keep filling surface moistening; At thionizer inlet mouth place, frequency conversion fan is injected into air proportion in the raw material biogas that contains hydrogen sulfide, forms mixed gas; Mixed gas is after packing layer, and hydrogen sulfide is wherein absorbed by the microbial film of filling surface, and purified gas is discharged from thionizer outlet, thereby completes desulfurization.
Described filler can be divided into one deck or multilayer filling, uses grid and section bar that packing support is got up, thereby forms space with storage doctor solution in thionizer bottom;
The nutritive medium configuring is added in thionizer by fluid infusion pump or overflow mode, for the desulfurizing bacteria in doctor solution provides moisture and nutritive ingredient; And by motorized valve time opening, regular discharge doctor solution Additional nutrient solution.
Described nutritive medium adopts lysate to dissolve the medicament configuration of Nitrogen-and Phosphorus-containing potassium element;
Described lysate can be softening water;
Described lysate also can for clear water, settling tank water outlet or anaerobic digestion solution substitutes or part substitutes softening water, thereby reduces running cost.
If COD, calcium ions and magnesium ions content, the suspended contamination content of the water quality such as clear water, settling tank water outlet, anaerobic digestion solution are higher, without processing directly for bacterium provides moisture and nutrition, the vitriol that bioprocesses produces can generate throw out with above substance reaction, thereby in thionizer, form a large amount of mud, cause stifled tower.For avoiding stifled tower, need utilize moisturizing treatment system to carry out pre-treatment to liquid such as clear water, settling tank water outlet, anaerobic digestion solutions.Above liquid is after replenisher tank one and replenisher tank two processing, and the content of its impurity reduces.
Described air Injection ratio, the start time of recycle pump and the addition of nutritive medium have all been controlled by PLC, and concrete numerical value is set after process calculation, can guarantee desulfotomaculum bacteria needs, can avoid again the excessive waste that brings.Thionizer pneumatic outlet need be installed oxygen concentration detector, detects in outlet biogas oxygen concentration whether in safety range.
The beneficial effect that the utility model brings is: by above concrete technology, can be found out, the utility model is that a kind of running cost is lower, and sweetening power is stronger, stable, safe biological desulfurization process;
Air Injection ratio is controlled and is adjusted by PLC, frequency conversion fan, injection ratio can be according to system import concentration of hydrogen sulfide and the adjustment of outlet oxygen concentration, can guarantee the demand of sweetening process to oxygen, can guarantee that again blower fan can be by too much air Injection unstripped gas.
Accompanying drawing explanation
Fig. 1 is process structure schematic diagram of the present utility model
Fig. 2 is the utility model sweetening effectiveness figure
In figure, 1, thionizer 2, recycle pump 3, motorized valve 4, temperature sensor 5, liquidometer 6, frequency conversion fan 7, under meter 8, oxygen concentration detector 9, replenisher tank 1, replenisher tank two.
Embodiment
Below in conjunction with concrete drawings and Examples, the utility model is described in further detail.
As shown in Figure 1, a kind of bio-desulfurization device, comprise thionizer 1, desulfurization pipeline, admission passage, outlet pipe and nutritive medium pipeline, described thionizer 1 bottom by desulfurization pipeline connection to thionizer top, described desulfurization pipeline is provided with recycle pump 2 and motorized valve 3, and one end that desulfurization pipeline is positioned at thionizer top is provided with shower nozzle; Described thionizer bottom is also connected respectively admission passage and outlet pipe with top, and described air intake management connects air intlet and biogas import simultaneously, and described air intlet place is provided with frequency conversion fan 6 and motorized valve 3, and described biogas ingress is provided with under meter 7; Described outlet pipe is provided with oxygen concentration detector 8; Described nutritive medium pipeline is provided with moisturizing treatment system, and described moisturizing treatment system comprises replenisher tank 1 and replenisher tank 2 10;
The middle part of described thionizer and bottom are also respectively equipped with temperature sensor 4 and liquidometer 5.
Utilize sulfur removal technology of the present utility model, utilize recycle pump 2 that doctor solution is squeezed into thionizer 1 top, through shower nozzle, doctor solution is sprayed to filling surface, to keep filling surface moistening; Thionizer 1 tank body material adopts glass reinforced plastic or makes containing interior rot-resistant steel material; At thionizer 1 inlet mouth place, frequency conversion fan 6 is injected into air proportion in the raw material biogas that contains hydrogen sulfide, forms mixed gas; Mixed gas is after packing layer, and hydrogen sulfide is wherein absorbed by the microbial film of filling surface, and purified gas is discharged from thionizer 1 outlet, thereby completes desulfurization.
Described filler is blossom type filler, can be divided into one deck or multilayer filling, filler supports by glass-fiber reinforced plastic grille, supporting pillar adopts glass fiber reinforced plastic shapes or contains outer rot-resistant shaped steel or steel pipe, thereby in thionizer 1 formation space, bottom with storage doctor solution, and in thionizer bottom, liquidometer 5 is set, detect doctor solution liquid level;
The nutritive medium configuring is added in thionizer 1 by fluid infusion pump or overflow mode, for the desulfurizing bacteria in doctor solution provides moisture and nutritive ingredient; And by motorized valve 3 time openings, regular discharge doctor solution Additional nutrient solution.
The medicament configuration of water dissolution Nitrogen-and Phosphorus-containing potassium element for described nutritive medium adopting process;
In described nutritive medium, nitrogen content is 4～16%, and phosphorus content is 0.4～4.8%, potassium content 0.1～3.9%.
Described process water can be softening water; Described process water also can for clear water, settling tank water outlet or anaerobic digestion solution substitutes or part substitutes softening water, thereby reduces running cost.
If COD, calcium ions and magnesium ions content, the suspended contamination content of the water quality such as clear water, settling tank water outlet, anaerobic digestion solution are higher, without processing directly for bacterium provides moisture and nutrition, the vitriol that bioprocesses produces can generate throw out with above substance reaction, thereby a large amount of mud of the interior formation of thionizer 1, causes stifled tower.For avoiding stifled tower, need utilize moisturizing treatment system to carry out pre-treatment to liquid such as clear water, settling tank water outlet, anaerobic digestion solutions, above liquid is after the replenisher tank 1 and replenisher tank 2 10 processing of moisturizing treatment system, and the content of its impurity reduces.
Described doctor solution temperature range is 28 ℃～35 ℃; Thionizer is provided with temperature sensor 4, is equipped with heat exchanger in piping system, when system temperature is doctor solution heating during lower than set(ting)value.
Doctor solution pH scope: 0.5～5.Adopt different process water, doctor solution pH is different, is specially: adopt clear water or softening water, doctor solution pH is 0.5～2, and while adopting settling tank water outlet or anaerobic digestion solution, doctor solution pH is 2.5～5.5.
Described air Injection ratio, the start time of recycle pump 2 and the addition of nutritive medium have all been controlled by PLC, detect the concrete numerical value of air and set after process calculation, can guarantee desulfotomaculum bacteria needs, can avoid again the excessive waste that brings.Thionizer 1 pneumatic outlet need be installed oxygen concentration detector 8, detects in outlet biogas oxygen concentration whether in safety range; Thionizer 1 pneumatic outlet oxygen content is controlled at 0.5～2.0%;
Raw material biogas ingress is provided with under meter 7;
This sulfur removal technology is also equipped with filler Rapid Cleaning system.
When system is moved for the first time, add appropriate thiobacillus bacterial classification mother liquor; Suitable when growth conditions, bacterium can be how much multiples with the speed in every 2 hours 1 generations of breeding and increase, and can in 1～2 day, can reach the desulfuration efficiency of design requirements.
Certain paper mill adopts this biological desulfurization process system, and design biogas tolerance is 820m
3/ h, concentration of hydrogen sulfide is 12500ppm, adopts two thionizer series connection to place, and biogas is successively through two thionizers, and hydrogen sulfide is down to 200ppm.
Be illustrated in figure 2 this system log, top square curve is biogas tolerance, and bottom trigonometric curve is system outlet hydrogen sulfide content.Concentration of hydrogen sulfide in detection system inlet mouth biogas is 12000ppm, and biogas tolerance maintains 580m
3/ h～620m
3/ h, the concentration of hydrogen sulfide of desulphurization system outlet can be stabilized in below 200ppm, and desulfuration efficiency can reach more than 98%.
The utility model is not limited to above-mentioned embodiment, and anyone should learn the drawn identical or close technical scheme of structural changes of making under the utility model enlightenment, within all falling into protection domain of the present utility model.
The technology that the utility model is not described in detail, shape, structure are partly known technology.
Claims (2)
1. a bio-desulfurization device, it is characterized in that, comprise thionizer, desulfurization pipeline, admission passage, outlet pipe and nutritive medium pipeline, described thionizer bottom by desulfurization pipeline connection to thionizer top, described desulfurization pipeline is provided with recycle pump and motorized valve, and one end that desulfurization pipeline is positioned at thionizer top is provided with shower nozzle; Described thionizer bottom is also connected respectively admission passage and outlet pipe with top, and described air intake management connects air intlet and biogas import simultaneously, and described air intlet place is provided with frequency conversion fan and motorized valve, and described biogas ingress is provided with under meter; Described outlet pipe is provided with oxygen concentration detector; Described nutritive medium pipeline is provided with moisturizing treatment system, and described moisturizing treatment system comprises replenisher tank one and replenisher tank two.
2. bio-desulfurization device as claimed in claim 1, is characterized in that, the middle part of described thionizer and bottom are also respectively equipped with temperature sensor and liquidometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420300061.5U CN203866270U (en) | 2014-06-08 | 2014-06-08 | Biological desulfurization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420300061.5U CN203866270U (en) | 2014-06-08 | 2014-06-08 | Biological desulfurization device |
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| CN203866270U true CN203866270U (en) | 2014-10-08 |
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| CN201420300061.5U Expired - Fee Related CN203866270U (en) | 2014-06-08 | 2014-06-08 | Biological desulfurization device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103980972A (en) * | 2014-06-08 | 2014-08-13 | 山东恒能环保能源设备有限公司 | Biological desulfurization device and process |
-
2014
- 2014-06-08 CN CN201420300061.5U patent/CN203866270U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103980972A (en) * | 2014-06-08 | 2014-08-13 | 山东恒能环保能源设备有限公司 | Biological desulfurization device and process |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141008 Termination date: 20160608 |
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| CF01 | Termination of patent right due to non-payment of annual fee |