CN209052679U - A kind of desulfurizer in situ for anaerobic fermentation of kitchen waste - Google Patents
A kind of desulfurizer in situ for anaerobic fermentation of kitchen waste Download PDFInfo
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- CN209052679U CN209052679U CN201821579385.1U CN201821579385U CN209052679U CN 209052679 U CN209052679 U CN 209052679U CN 201821579385 U CN201821579385 U CN 201821579385U CN 209052679 U CN209052679 U CN 209052679U
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- anaerobic fermentation
- fermentor
- kitchen waste
- desulfurizer
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Abstract
The utility model discloses a kind of desulfurizers in situ for anaerobic fermentation of kitchen waste, including fermentor, first air blower, air inlet pipe, escape pipe and frequency converter, air inlet pipe one end and the top of fermentor connect, the other end is connect with the air entry of the first air blower, the bottom end of fermentor is protruded into one end of escape pipe, the other end is connect with the exhaust outlet of the first air blower, air intake duct all the way is connected in air inlet pipe, the second air blower for blasting air is provided on air intake duct, H2S detector is provided on escape pipe, H2S detector is connect with inverter communication with the second air blower.The device is used to remove most of hydrogen sulfide in biogas in situ during anaerobic fermentation of kitchen waste, so that the hydrogen sulfide in methane content generated is reduced, reduces the load of rear end biogas desulfurization.
Description
Technical field
The utility model relates to kitchen garbage processing technology fields, are used for anaerobic fermentation of kitchen waste more particularly to one kind
Desulfurizer in situ.
Background technique
Kitchen garbage refers to the food waste and food residues of family, school, organ canteen and catering industry, is
The chief component of domestic waste, compared with Other Waste, with water content is big, content of organics is more, fat content
And the features such as salt content is high, nutrient is abundant, it is worth with very big recycling.Country's mainstream handles kitchen rubbish at present
The technique of rubbish is anaerobic fermentation, but due to containing a large amount of protein, and the sulfur content in protein in kitchen garbage
Higher, the hydrolysis stage of protein during the fermentation can generate a large amount of element sulphur, the meeting under anaerobic environment of these element sulphurs
Hydrogen sulfide is generated, since the solubility of hydrogen sulfide in water is not high, the hydrogen sulfide of high concentration can be mixed in meal in gaseous form
In the mixed gas (biogas) generated after the garbage anaerobic fermentation of kitchen, concentration can reach 3000-8000ppm.Hydrogen sulfide is one
Kind inflammable sour gas is acute severe toxicity, and sucking a small amount of high-concentration hydrogen sulfide can be in fatal in the short time, using containing vulcanization
The biogas of hydrogen easily corrodes equipment, and can generate the air pollutants such as sulfur dioxide.Therefore, at anaerobic fermentation of kitchen waste
The hydrogen sulfide removed in biogas in reason project is most important.
Currently used sulfur removal technology mainly has chemical desulfurization and biological desulphurization, and wherein chemical desulfurization is that biogas is allowed to pass through oxygen
Change iron flask or sodium hydroxide wash tower, hydrogen sulfide is removed by the oxidation of iron oxide or the neutralization of sodium hydroxide,
But using iron oxide desulphurization plant heavy, desulfurizer regeneration is mostly super regeneration, operates large labor intensity, misoperation is very
It is easy catching fire, more dangerous, desulfurizing agent must be replaced after furthermore regeneration times reach certain number, and operating cost is high.
Greatest drawback using sodium hydroxide washing desulfurization caustic wash desulfuration method is that the cost of medicament is very high, and at the waste liquid of potential generation
The problems such as reason.Biological desulphurization is that desulfurization bacterium is added in reactor, converts hydrogen sulfide during the metabolism of desulfurization bacterium
For sulphur simple substance and sulfate, so that the hydrogen sulfide in biogas is removed, however biological desulphurization is controlled there are system complex and for operation
System requires high, cost of investment height, the problem of operation stability difference.
In view of the above-mentioned problems, special propose the utility model.
Utility model content
The purpose of the utility model is to provide a kind of desulfurizers in situ for anaerobic fermentation of kitchen waste, for eating
Most of hydrogen sulfide in biogas is removed during the garbage anaerobic fermentation of kitchen in situ, so that the hydrogen sulfide in methane content generated
It reduces, reduces the load of rear end biogas desulfurization.
To achieve the above object, the utility model provides the following technical solutions:
A kind of desulfurizer in situ for anaerobic fermentation of kitchen waste, including fermentor, the first air blower, air inlet pipe,
The top of escape pipe and frequency converter, described air inlet pipe one end and fermentor connects, the air-breathing of the other end and first air blower
The bottom end of the fermentor, the exhaust outlet company of the other end and first air blower are protruded into mouth connection, one end of the escape pipe
It connects, air intake duct all the way is connected in the air inlet pipe, second for blasting air is provided on the air intake duct
Air blower, is provided with H2S detector on the escape pipe, and the H2S detector and second air blower are and institute
State inverter communication connection.
Preferably, be provided with air flow meter on the air intake duct, the air flow meter be set to air inlet pipe with
Between the junction and air-blaster of air intake duct.
Preferably, first air blower is set as Roots blower.
Preferably, one end that the escape pipe protrudes into fermentor is provided with nozzle.
Preferably, the nozzle is evenly arranged on fermenter base.
Preferably, the junction of the air inlet pipe and the fermentor is higher than the height of fermentation liquid in fermentor.
Preferably, the frequency converter is built-in with PID regulator.
Compared with prior art, the beneficial effects of the utility model are as follows:
The utility model provides a kind of desulfurizer in situ for anaerobic fermentation of kitchen waste, which passes through biology
Desulfurization only needs the Biological Principles of micro-air, by desulphurization reaction together with anaerobic fermentation reaction bonded, realizes anaerobism hair
Biological desulphurization reaction is carried out while ferment drastically reduces kitchen garbage so that hydrogen sulfide is removed during the fermentation
The hydrogen sulfide in methane content that anaerobic fermentation process generates reduces the load of rear end biogas desulfurization, avoids rear end and contain vulcanization
The biogas of hydrogen causes the influence of heavy corrosion to equipment, pipeline, while avoiding the tail gas after biogas combustion and generating a large amount of dioxies
Change atmosphere pollution caused by sulphur；Secondly, be provided with H2S detector in the device and be built-in with the frequency converter of PID controller,
Automatic adjustment blower frequency in real time is adjusted by PID controller by on-line checking to hydrogen sulfide and frequency converter, thus accurately
Air additive amount is quantitatively controlled, influence on the basis of maximizing removing hydrogen sulfide by air for anaerobic fermentation drops to most
Low, so that anaerobic fermentation process is normally carried out, third, the device is provided with air flow meter to air mass flow implementing monitoring, when
The too low or too high situation operation personnel of air mass flow occur can accomplish to dispose in time.
Detailed description of the invention
In order to illustrate more clearly of the utility model embodiment or technical solution in the prior art, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, drawings discussed below is only this reality
Without creative efforts, may be used also for those of ordinary skill in the art with novel some embodiments
To obtain other drawings based on these drawings.
Fig. 1 is structural schematic diagram of the utility model for the desulfurizer in situ of anaerobic fermentation of kitchen waste.
In figure: 1-fermentor, 2-air inlet pipe, 21-nozzles, 3-escape pipes, the 4-the first air blower, 5-air inlets
Pipe, the 6-the second air blower, 7-H2S detectors, 8-frequency converters, 9-air flow meters.
Specific embodiment
One core of the utility model is to provide a kind of desulfurizer in situ for anaerobic fermentation of kitchen waste, use
In removing most of hydrogen sulfide in biogas in situ during anaerobic fermentation of kitchen waste, so that vulcanizing in the biogas generated
Hydrogen content is reduced, and reduces the load of rear end biogas desulfurization.
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figure 1, a kind of desulfurizer in situ for anaerobic fermentation of kitchen waste provided in this specific embodiment,
The device includes fermentor 1, the first air blower 4, air inlet pipe 2, escape pipe 3 and frequency converter 8, one end and the fermentor 1 of air inlet pipe 2
Top connection, the other end connect with the air entry of the first air blower 4, and the bottom end that fermentor 1 is protruded into one end of escape pipe 3 is submerged
In fermentation liquid in fermentor 1, the other end is connect with the exhaust outlet of the first air blower 4.The junction of air inlet pipe 2 and fermentor 1
Higher than the height of fermentation liquid in fermentor 1, what this can guarantee the sucking of air inlet pipe 2 is the biogas in fermentor 1, prevents air inlet pipe
The impurity such as 2 sucking fermentation liquids have an impact the first air blower 4, and the first air blower 4 is set as Roots blower, can will send out
A part of biogas generated in fermentation tank 1 passes through in the fermentation liquid after pressurization in penetrating fermentor 1.
The Biological Principles of micro-air are only needed by biological desulphurization, are connected with air intake duct all the way in air inlet pipe 2
5, it is provided with the second air blower 6 for blasting air on air intake duct 5, is provided with H2S detector 7 on escape pipe 3,
The concentration of real-time monitoring hydrogen sulfide in methane, H2S detector 7 and the second air blower 6 with 8 communication connection of frequency converter, frequency conversion
Device 8 is built-in with PID regulator, and the concentration that H2S detector 7 will test hydrogen sulfide is transferred on PID regulator, and PID is adjusted
Device automatically adjusts the frequency of the second air blower 6 according to the concentration of hydrogen sulfide by frequency converter 8, so that air flow control is reasonable
In the range of, the amount of blasting of air must be controlled accurately, if deficiency causes oxygen content required for desulfurization bacterium too low, desulfurization
Reaction is not thorough, and the hydrogen sulfide in biogas is unable to reach maximized removing, if excessively blasting air again will lead to anaerobism ring
The destruction in border influences the yield of biogas to can inhibit the process of anaerobic fermentation.
As the preferred of this specific embodiment, air flow meter 9 is provided on air intake duct 5, air flow meter 9 is arranged
Between air inlet pipe 2 and the junction and air-blaster of air intake duct 5, air flow meter 9 can be to air mass flow reality
Monitoring is applied, can accomplish to dispose in time when there is the too low or too high situation operation personnel of air mass flow.Meanwhile escape pipe 3
The one end for protruding into fermentor is provided with nozzle 21, and nozzle 21 is evenly arranged on fermenter base, so that the air blasted is evenly distributed on
In fermentor 1.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (7)
1. a kind of desulfurizer in situ for anaerobic fermentation of kitchen waste, which is characterized in that including fermentor, the first air blast
The top of machine, air inlet pipe, escape pipe and frequency converter, described air inlet pipe one end and fermentor connects, the other end and first drum
The air entry of blower connects, and the bottom end of the fermentor, the other end and first air blower are protruded into one end of the escape pipe
Exhaust outlet connection, be connected with air intake duct all the way in the air inlet pipe, be provided on the air intake duct for blasting
Second air blower of air is provided with H2S detector, the H2S detector and second drum on the escape pipe
Blower is connect with the inverter communication.
2. the desulfurizer in situ according to claim 1 for anaerobic fermentation of kitchen waste, which is characterized in that the sky
Air flow meter is provided in gas air inlet pipe, the air flow meter is set to junction and the sky of air inlet pipe and air intake duct
Between enraged blower.
3. the desulfurizer in situ according to claim 2 for anaerobic fermentation of kitchen waste, which is characterized in that described
One air blower is set as Roots blower.
4. the desulfurizer in situ according to claim 1 or 3 for anaerobic fermentation of kitchen waste, which is characterized in that institute
It states escape pipe and protrudes into one end of fermentor and be provided with nozzle.
5. the desulfurizer in situ according to claim 4 for anaerobic fermentation of kitchen waste, which is characterized in that the spray
Mouth is evenly arranged on fermenter base.
6. the desulfurizer in situ according to claim 5 for anaerobic fermentation of kitchen waste, which is characterized in that it is described into
The junction of tracheae and the fermentor is higher than the height of fermentation liquid in fermentor.
7. the desulfurizer in situ according to claim 5 for anaerobic fermentation of kitchen waste, which is characterized in that the change
Frequency device is built-in with PID regulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821579385.1U CN209052679U (en) | 2018-09-27 | 2018-09-27 | A kind of desulfurizer in situ for anaerobic fermentation of kitchen waste |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821579385.1U CN209052679U (en) | 2018-09-27 | 2018-09-27 | A kind of desulfurizer in situ for anaerobic fermentation of kitchen waste |
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| CN209052679U true CN209052679U (en) | 2019-07-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110479081A (en) * | 2019-08-27 | 2019-11-22 | 周岩 | A kind of constraint formula bioreactor original position sulfur removal technology and its equipment |
-
2018
- 2018-09-27 CN CN201821579385.1U patent/CN209052679U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110479081A (en) * | 2019-08-27 | 2019-11-22 | 周岩 | A kind of constraint formula bioreactor original position sulfur removal technology and its equipment |
| CN110479081B (en) * | 2019-08-27 | 2021-07-02 | 周岩 | In-situ desulfurization process and equipment for constrained bioreactor |
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