CN202390418U - Landfill gas desulfurization pretreatment system - Google Patents
Landfill gas desulfurization pretreatment system Download PDFInfo
- Publication number
- CN202390418U CN202390418U CN2011205165515U CN201120516551U CN202390418U CN 202390418 U CN202390418 U CN 202390418U CN 2011205165515 U CN2011205165515 U CN 2011205165515U CN 201120516551 U CN201120516551 U CN 201120516551U CN 202390418 U CN202390418 U CN 202390418U
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- CN
- China
- Prior art keywords
- landfill gas
- tank
- thionizer
- roots blower
- pretreatment system
- 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
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- Treating Waste Gases (AREA)
Abstract
The utility model discloses a landfill gas desulfurization pretreatment system which comprises a landfill gas inlet, a coarse filter, a fine filter, a first-level Roots blower, a second-level Roots blower, a desulfurization tower, a barren liquor tank, a regeneration tank and a sulfur foam tank, wherein the regeneration tank is also connected with the barren liquor tank; the barren liquor tank is connected with the upper end of the desulfurization tower through a barren liquor pump; the top of the desulfurization tower is divided into two pipelines which are connected with the landfill gas inlet and a rear condenser; a pipeline is also arranged between the coarse filter and a front condenser and communicated with the top of the desulfurization tower; an adjustable liquid level meter is arranged between the barren liquor tank and the regeneration tank; the rear condenser is connected with a buffer tank through the second-level Roots blower and the fine filter connected sequentially; and the buffer tank is connected with a generator set. The landfill gas desulfurization pretreatment system disclosed by the utility model has high desulfurization efficiency and low operation cost, and is safe and reliable and is convenient to maintain.
Description
Technical field
The utility model relates to desulphurization pretreatment system, is specially a kind of landfill gas desulphurization pretreatment system.
Background technology
At present, domestic domestic refuse 85% is taked the landfill disposal mode.Organism in the rubbish at landfill after anaerobic reaction can produce a kind of mixed gas, i.e. refuse embedded gas.Refuse embedded gas removes staple CH
4, CO
2, N
2, O
2, also contain hundreds of impurity outward, comprise water vapour, sulfide (H
2S), solid particulate matter, halogenide, high-carbon hydrocarbon etc.Because it is all very unstable that landfill gas contains the flow, pressure, temperature, concentration of above impurity and landfill gas etc.; So directly be used for problems such as equipment corrosion that fuel gas generation will certainly cause gas electricity generator, wearing and tearing; Thereby seriously shorten the life-span of gas electricity generator; So before utilizing, must carry out pre-treatment to landfill gas.But existing landfill gas desulphurization pretreatment system desulfuration efficiency is not high, processing power can not satisfy existing demand, and running cost is high, power unit is damaged easily, and maintenance is also inconvenient.
The utility model content
The technical problem that the utility model solved is to provide a kind of landfill gas desulphurization pretreatment system, to solve the shortcoming in the above-mentioned background technology.
The technical problem that the utility model solved adopts following technical scheme to realize:
The landfill gas desulphurization pretreatment system; Comprise landfill gas inlet, coarse filter, fine filter, one-level roots blower, secondary roots blower, thionizer, lean solution groove, regeneration tank, sulphur foam chute; Said landfill gas inlet communicates with said coarse filter; Said coarse filter, preceding condensing surface and one-level roots blower link to each other successively, connect thionizer behind the said one-level roots blower, and said thionizer bottom is provided with the rich solution pump with said regeneration tank through pipe connection and connecting passage; The external sulphur foam chute of said regeneration tank; Said regeneration tank also links to each other with the lean solution groove, and said lean solution groove links to each other with the upper end of thionizer through lean pump, and the top of said thionizer is told the two-way pipeline and linked to each other with aftercondenser with said landfill gas inlet respectively; Also being provided with pipeline between said coarse filter and the preceding condensing surface communicates with the top of thionizer; Be provided with adjustable liquidometer between said lean solution groove and the regeneration tank, said aftercondenser links to each other with surge tank with fine filter through the secondary roots blower that connects successively, and said surge tank links to each other with power unit.
In the utility model, be provided with by-pass valve between said aftercondenser and the said surge tank.Condensing surface all links to each other with unit cooler via water circulating pump with aftercondenser before said.Be connected with dosing tank between said lean solution groove and the lean pump.
Beneficial effect
High, the desulfuration efficiency high (can reach 99%) of the utility model work Sulfur capacity has the function that suppresses and eliminate the stifled tower of sulphur, both can remove inorganic sulfur simultaneously, but organic sulfide removal (50%-80%) again can be removed moisture, dust etc. clean gas is provided.The utility model also has powerful function, os easily, and is safe and reliable, can guarantee the long-term stability operation of power unit, and easy to maintenance, and running cost is low.
Description of drawings
Fig. 1 is a landfill gas desulphurization pretreatment system schema.
Embodiment
For technique means, creation characteristic that the utility model is realized, reach purpose and be easy to understand understanding with effect, below in conjunction with concrete diagram, further set forth the utility model.
Referring to Fig. 1; Landfill gas desulphurization pretreatment system schema; The landfill gas desulphurization pretreatment system; Comprise landfill gas inlet 1, coarse filter 2, fine filter 16, one-level roots blower 4, secondary roots blower 15, thionizer 5, lean solution groove 10, regeneration tank 6, sulphur foam chute 7, said landfill gas inlet 1 communicates with said coarse filter 2, and said coarse filter 2, preceding condensing surface 3 link to each other with one-level roots blower 4 successively; Connect thionizer 5 behind the said one-level roots blower 4; Said thionizer 5 bottoms and said regeneration tank 6 are provided with rich solution pump 8 through pipe connection and connecting passage, said regeneration tank 6 external sulphur foam chutes 7, and said regeneration tank 6 also links to each other with lean solution groove 10; Said lean solution groove 10 links to each other through the upper end of lean pump 9 with thionizer 5; The top of said thionizer 5 is told the two-way pipeline and is linked to each other with aftercondenser 13 with said landfill gas inlet 1 respectively, also is provided with pipeline between said coarse filter 2 and the preceding condensing surface 3 and communicates with the top of thionizer 5, is provided with adjustable liquidometer 18 between said lean solution groove 10 and the regeneration tank 6; Said aftercondenser 13 links to each other with surge tank 14 with fine filter 16 through the secondary roots blower 15 that connects successively, and said surge tank 14 links to each other with power unit.
In the utility model, be provided with by-pass valve between said aftercondenser 13 and the said surge tank 14.Condensing surface 3 all links to each other with unit cooler 11 via water circulating pump 12 with aftercondenser 13 before said.Be connected with dosing tank 17 between said lean solution groove 10 and the lean pump 9.
In the utility model, landfill gas gets into coarse filter 2 through landfill gas inlet 1 earlier and filters, and removes oarse-grained dust and drop in the refuse embedded gas; Water cooler 3 coolings are got rid of water of condensation through the air water separator of bottom before getting into again; Landfill gas after elimination big dust particle and the dehydration is sent into 5 ends of thionizer (temperature is 35-40 ℃) after by one-level roots blower 4 pressurization, with the pH value be the doctor solution counter current contact of 8.5-9.2, the chemical reaction that carries out desulfurization removes the H in the landfill gas
2S.Landfill gas after the desulfurization is come out from thionizer 5 tops, after aftercondenser 13 and air water separator are removed a large amount of water of condensation, sends into 15 superchargings of secondary roots blower; Landfill gas after the supercharging is removed tiny dust through fine filter 16, gives different power unit gas transmission generatings through surge tank 14 at last.11 pairs of heat-eliminating medium refrigeration of unit cooler are carried out condensation to landfill gas and are dewatered after pipeline is distributed to preceding condensing surface 3, aftercondenser 13.Lean solution in the lean solution groove 10 sprays from thionizer 5 tops after lean pump 9 pressurizations; With the landfill gas counter current contact, carry out desulphurization reaction, rich solution flows out from tower bottom then; And deliver in the rich solution groove (rich solution groove at the bottom of the tower), through rich solution pump 8 rich solution is delivered in the injector again.Air is used in injector suction regeneration, gets into regeneration tank 6 and carries out regenerative response, and the lean solution after the regeneration recycles behind the inflow lean solution groove 10 after separating through filtering suspended particle sulphur.The sulphur foam that forms at regeneration tank 6 liquid levels overflows after 7 sedimentations of sulphur foam chute, and upper solution is sent lean solution groove 10 back to, and bottom sulphur cream is delivered to the sulfur melting kettle recovery sulier.
More than show and described ultimate principle of the utility model and the advantage of principal character and the utility model; The technician of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification sheets that the utility model just is described, under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications; These variations and improvement all fall in the utility model scope that requires protection, and the utility model requires protection domain to be defined by appending claims and equivalent thereof.
Claims (4)
1. landfill gas desulphurization pretreatment system; Comprise landfill gas inlet, coarse filter, fine filter, one-level roots blower, secondary roots blower, thionizer, lean solution groove, regeneration tank, sulphur foam chute; Said landfill gas inlet communicates with said coarse filter, and said coarse filter, preceding condensing surface and one-level roots blower link to each other successively, connect thionizer behind the said one-level roots blower; Said thionizer bottom is provided with the rich solution pump with said regeneration tank through pipe connection and connecting passage; The external sulphur foam chute of said regeneration tank is characterized in that said regeneration tank also links to each other with the lean solution groove; Said lean solution groove links to each other with the upper end of thionizer through lean pump; The top of said thionizer is told the two-way pipeline and is linked to each other with aftercondenser with said landfill gas inlet respectively, also is provided with pipeline between said coarse filter and the preceding condensing surface and communicates with the top of thionizer, is provided with adjustable liquidometer between said lean solution groove and the regeneration tank; Said aftercondenser links to each other with surge tank with fine filter through the secondary roots blower that connects successively, and said surge tank links to each other with power unit.
2. landfill gas desulphurization pretreatment system according to claim 1 is characterized in that, is provided with by-pass valve between said aftercondenser and the said surge tank.
3. landfill gas desulphurization pretreatment system according to claim 1 is characterized in that, said preceding condensing surface all links to each other with unit cooler via water circulating pump with aftercondenser.
4. landfill gas desulphurization pretreatment system according to claim 1 is characterized in that, is connected with dosing tank between said lean solution groove and the lean pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205165515U CN202390418U (en) | 2011-12-13 | 2011-12-13 | Landfill gas desulfurization pretreatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205165515U CN202390418U (en) | 2011-12-13 | 2011-12-13 | Landfill gas desulfurization pretreatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202390418U true CN202390418U (en) | 2012-08-22 |
Family
ID=46665356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205165515U Expired - Fee Related CN202390418U (en) | 2011-12-13 | 2011-12-13 | Landfill gas desulfurization pretreatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202390418U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106118776A (en) * | 2016-08-03 | 2016-11-16 | 重庆康达新能源有限公司 | A kind of rubbish landfill gas desulfurizing and purifying system and desulfurizing and purifying method |
-
2011
- 2011-12-13 CN CN2011205165515U patent/CN202390418U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106118776A (en) * | 2016-08-03 | 2016-11-16 | 重庆康达新能源有限公司 | A kind of rubbish landfill gas desulfurizing and purifying system and desulfurizing and purifying method |
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Legal Events
| 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: 20120822 Termination date: 20141213 |
|
| EXPY | Termination of patent right or utility model |