CN206414965U - A kind of sour gas circulation absorption system - Google Patents
A kind of sour gas circulation absorption system Download PDFInfo
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- CN206414965U CN206414965U CN201720079183.XU CN201720079183U CN206414965U CN 206414965 U CN206414965 U CN 206414965U CN 201720079183 U CN201720079183 U CN 201720079183U CN 206414965 U CN206414965 U CN 206414965U
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- kettle
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Abstract
The utility model is related to a kind of sour gas circulation absorption system, preparation kettle including passing sequentially through pipeline connection, suction filtration tank, filtrate receiver, two grades of sedimentation kettles, one-level settles kettle, crystallization kettle, crystallization kettle is connected by pipeline with suction filtration tank, one-level, which settles to connect by pipeline between kettle and preparation kettle, is sequentially provided with spray column, water sealed tank, spray column is provided with sour gas import, spray pump is sequentially provided with by pipeline connection between two grades of sedimentation kettles and spray column, solid-liquid separator, solid-liquid separator is connected with spray column, one-level settles connecting pipe between kettle and two grades of sedimentation kettles and is provided with PH measuring instruments；Prepare kettle and be provided with solid base dog-house, connecting pipe between filtrate receiver and two grades of sedimentation kettles is provided with delivery pump, connecting pipe is drawn a lateral and is connected between water sealed tank and preparation kettle on connecting pipe between filtrate receiver and two grades of sedimentation kettles, and filtrate receiver is provided with vacuum port；Efflux wastewater is not produced, Sour gas disposal is solved and produces environmental protection pressure caused by a large amount of waste water.
Description
Technical field
The utility model is related to a kind of sour gas cyclic absorption, more particularly to a kind of sour gas circulation absorption system.
Background technology
Some sour gas usually occur in chemical industry synthesis, these sour gas, which are discharged in air, to be caused to environment
Severe contamination.The problem of in order to solve such, it will usually absorbed using Water spray and Alkali absorption;Some faintly acid gases are had to
Neutralization absorption is carried out using substantial amounts of alkali lye;Either water or Alkali absorption can all produce substantial amounts of waste water, these usual waste water
It can be sent to after being handled in corresponding sewage treatment equipment and discharge, or even the not high waste water of some salt content can be discharged directly,
Different degrees of destruction is undoubtedly caused to environment;And these brine wastes need by substantial amounts of process and consume substantial amounts of energy
Measure to be handled, process is even also more difficult than handling the process of sour gas, but is still difficult to reach discharge standard;
Absorption process in this patent is that the saturated solution after absorption is configured into alkaline absorption solution again after simple desalination to return again
The process utilized, does not have waste water exclusion during this, reduces the process and expense of brine waste processing.
Utility model content
The utility model provides a kind of sour gas circulation absorption system to overcome the deficiencies in the prior art.
To reach above-mentioned purpose, the technical solution adopted in the utility model is：A kind of sour gas circulation absorption system, bag
Include the preparation kettle for passing sequentially through pipeline connection, suction filtration tank, filtrate receiver, two grades of sedimentation kettles, one-level sedimentation kettle, crystallization kettles, the knot
Brilliant kettle is connected by pipeline with suction filtration tank, and spray is sequentially provided with by pipeline connection between the one-level sedimentation kettle and preparation kettle
Tower, water sealed tank, the spray column are provided with sour gas import, are connected between two grades of sedimentation kettles and spray column by pipeline
Be sequentially provided with spray pump, solid-liquid separator, solid-liquid separator is connected with spray column, one-level sedimentation kettle and two grades of sedimentation kettles it
Between the pipeline that connects be provided with PH measuring instruments；The preparation kettle is provided with solid base dog-house, the filtrate receiver and two grades of sedimentations
Connecting pipe between kettle is provided with delivery pump, and the connecting pipe between the filtrate receiver and two grades of sedimentation kettles draws a branched pipe
Road is connected on the connecting pipe between water sealed tank and preparation kettle, and the filtrate receiver is provided with vacuum port.
It is that water and solid base are configured into alkaline absorption solution to prepare kettle, and requirement improves temperature to 60~65 DEG C;Temperature
Realized by preparing the chuck on kettle;Alkaline absorption solution judges whether to prepare by surveying pH value to be completed;Prepare the liquid on kettle
Position shows to weigh the amount of absorbing liquid.
Suction filtration tank is a kind of equipment for separating liquid from solid, prepares the absorbing liquid terminated and the production in process for preparation is removed by suction filtration
Raw solid and debris.It is used as the removing solid salt process after crystallization simultaneously, filtered mother liquor has to pass through preparation and can just returned
Return and reused in circulation absorption system.
Two grades of sedimentation kettles are the alkaline absorption solution recirculating stills sprayed, during effect is the circulated sprinkling of alkaline absorption solution
Between kettle, while also coordinate one-level sedimentation kettle play two grades sedimentation functions;Solid-liquid separator is that alkaline absorption solution is entering spray
The step processing done before tower is drenched, the precipitation salt settled in two grades of sedimentation kettles can be separated, liquid enters spray column after separation
Acid gas absorption is carried out, solid can not react with acid, therefore enter one-level after being separated and settle kettle.
Spray column is the device that an alkaline absorption solution contacted and occurred neutralization reaction with sour gas;Alkaline absorption solution exists
Enter in the presence of spray pump in spray column, alkaline absorption solution is done atomization process by the shower nozzle in spray column；After atomization process
Alkaline absorption solution after the abundant haptoreaction of sour gas entered from spray column import with entering in one-level sedimentation kettle.
One-level sedimentation kettle can receive the reactant of alkaline absorption solution and sour gas, generally saline solns；In solution by
In the solid matter that saturation or temperature change are produced can be stayed in by sedimentation one-level sedimentation kettle in, upper strata not and reaction alkalescence
Absorbing liquid can settle entering communicating pipe in two grades of sedimentation kettles between kettle and two grades of sedimentation kettles by one-level and continue cyclic absorption
Sour gas.
Crystallization kettle be alkaline absorption solution saturation after or can not continue absorb sour gas when will become total overall reaction
For containing salt saturated solution, one-level is settled into entering crystallization kettle containing salt saturated solution and crystallized in kettle.Will crystallization after crystallization
Suction filtration tank of the thing Jing Guo the foregoing description carries out separation of solid and liquid.Solid salt after separation carries out packing processes, and the mother liquor after separation is
Preparation kettle is delivered to by delivery pump containing salt saturated solution and carries out secondary prepare.Solid salt is had when pH value is 7-10 after preparation again
It is secondary to separate out, then pH value is delivered in two grades of sedimentation kettles again for 7-10 alkaline filtrate as absorbing liquid after progress suction filtration again
It is secondary to recycle.
Further improved as the utility model, the water sealed tank is provided with an exhaust duct, the exhaust duct
Provided with air-introduced machine.
It is further improved as the utility model, it is equipped with PH measuring instruments on the crystallization kettle, preparation kettle.
It is further improved as the utility model, in the preparation kettle, crystallization kettle, one-level sedimentation kettle and two grades of sedimentation kettles
It is equipped with agitating device.
Due to the utilization of above-mentioned technical proposal, the utility model has following advantages compared with prior art：
The utility model provides a kind of sour gas circulation absorption system, with alkali lye by spray column and sour gas,
It is set to generate salt, suction filtration is removed after the salt of generation is separated out by cooling；Obtained mother liquor returns to preparation kettle, by into preparation kettle
Throwing solid base makes its pH value between 7-10；The absorbing liquid prepared by entered after secondary suction filtration in absorption plant continue with
Sour gas produces reaction；Whole process does not produce efflux wastewater, solve existing Sour gas disposal produce a large amount of waste water and
Caused environmental protection pressure.
Brief description of the drawings
Illustrate below in conjunction with the accompanying drawings：
Accompanying drawing 1 is a kind of sour gas circulation absorption system structural representation of the present utility model.
Embodiment
Below in conjunction with the accompanying drawings and the detailed description made to the utility model of specific embodiment.
A kind of sour gas circulation absorption system structural representation described in the utility model as shown in Figure 1:Including
Pass sequentially through preparation kettle 1, suction filtration tank 2, filtrate receiver 3, two grades of sedimentation kettles 4, one-level sedimentation kettle 5, the crystallization kettles 6, knot of pipeline connection
Brilliant kettle 6 is connected by pipeline with suction filtration tank 2, and spray column is sequentially provided with by pipeline connection between one-level sedimentation kettle 5 and preparation kettle 1
7th, water sealed tank 8, spray column 7 is provided with sour gas import 9, between two grades of sedimentation kettles 4 and spray column 7 by pipeline connection successively
Provided with spray pump 10, solid-liquid separator 11, solid-liquid separator 11 is connected with spray column 7, one-level sedimentation kettle 5 and two grades of sedimentation kettles 4
Between the pipeline that connects be provided with PH measuring instruments 12；Prepare kettle 1 and be provided with solid base dog-house 13, filtrate receiver 3 and two grades of sedimentations
Connecting pipe between kettle 4 is provided with delivery pump 14, and the connecting pipe between filtrate receiver 3 and two grades of sedimentation kettles 4 draws a branch
Pipeline is connected on the connecting pipe between water sealed tank 8 and preparation kettle 1;Water sealed tank 8 is provided with an exhaust duct 9, exhaust duct
It is interior to be provided with air-introduced machine 15;PH measuring instruments 12 are equipped with crystallization kettle 6, preparation kettle 1;Prepare kettle 1, crystallization kettle 6, one-level sedimentation kettle
5 and two grades of sedimentation kettles 4 in be equipped with agitating device 16, filtrate receiver 3 is provided with vacuum port 22.
In the utility model design, water and solid base are added in preparation kettle prepared first, when using for the first time
The aqueous slkali prepared can also directly be added, it is 7-10 or so to make its pH value;Can be by temperature in the kettle control in process for preparation
System is used to improve the solubility of aqueous slkali to reach the requirement of above-mentioned pH value at 60~65 DEG C or so；Temperature can be by preparing kettle
Thermal medium is passed through in chuck to accomplish；Preparation is opened when reaching requirement and prepares kettle baiting valve 17, and alkaline absorption solution is put into and taken out
In filter pocket, while opening suction filtration tank suction filtration valve 18, open vacuum and alkaline absorption solution is pumped into filtrate receiver;The purpose of suction filtration
It is to separate solid matter that is undissolved in process for preparation or entering accidentally, the absorption process of next step is not influenceed;
Alkaline absorption solution is rapid after entering in filtrate receiver to open filtrate receiver outlet valve 19, opens valve 20, shutoff valve on conveyance conduit
Door 21, and open dynamic delivery pump alkaline absorption solution is delivered in two grades of sedimentation kettles;Need the sour gas absorbed will be from spray
Tower bottom import enters;Need first to open Sprayer Circulation pump before entering and alkaline absorption solution is delivered to spray column by spray
Atomizer in tower is entered in one-level sedimentation kettle after being atomized through spray column;When liquid level can pass through UNICOM in one-level sedimentation kettle
Pipeline, which is entered, is considered as satisfaction circulation requirement in two grades of sedimentation kettles, filtrate receiver can stop inhaling towards two grades of sedimentation kettles conveying alkalescence
Receive liquid;Stop delivery pump, the valve 20 closed on transfer pipeline, the alkaline absorption solution remained in filtrate receiver is when the liquid of sedimentation kettle
Added in time in two grades of sedimentation kettles when potential drop is low;After circulated sprinkling circulation normally in two grades of sedimentation kettles, system, which is met, to be absorbed
Condition, absorbed sour gas, which can be entered, to be contacted with the alkaline absorption solution after atomization in spray column and neutralizes immediately
Reaction;Reaction is generally exothermic reaction, so to be controlled by the absorbing liquid temperature in circulation;Can be by being settled to one-level
Enter corresponding cooling in the chuck of kettle and two grades of sedimentation kettles（Or heating）Medium is controlled, and general circulating temperature control exists
60~65 DEG C or so.
The appropriate water sealed tank opened after blower fan progress water conservancy diversion, spray column can be by measuring liquid in water sealed tank in absorption process
The pH value of body weighs the assimilation effect of spray column;The pH value of liquid illustrates spray column assimilation effect between 6-7 in water sealed tank
Very well, absorbing liquid, which has been neutralized, in the explanation that diminishes less than 6 or persistently spray column finishes, it is impossible to reabsorbs sour gas, needs
Feed or the absorbing liquid that more renews improves assimilation effect.
The pH value that the pH value measuring instrument on unicom pipeline between two grades of sedimentation kettles of one-level can reflect in whole absorption process,
When being changed into being crystallized, it is necessary to which salt saturated solution will be contained and be put into crystallization kettle after absorbent solution saturation containing salt saturated solution, open
One-level sedimentation kettle baiting valve 22 can be accomplished;In order to ensure that absorbing liquid retains a part in the fluency absorbed, one-level sedimentation kettle
To maintain circulation, and the alkaline absorption solution in filtrate receiver is all delivered in circulation absorption system by delivery pump.
Containing salt saturated solution enter crystallization kettle before temperature be 60~65 DEG C or so, now containing salt saturated solution dissolving
Highest is spent, reduces the solubility of salt by being cooled to normal temperature in crystallization kettle, salt can be separated out and crystallized;Temperature can be by adjusting
The cooling medium saved in crystallization kettle chuck is realized.The solidliquid mixture in crystallization kettle is put after salting out and consolidated into suction filtration tank
Liquid is separated.Solid salt carries out packing processes, and mother liquor is entered then to be delivered in preparation kettle by delivery pump in filtrate receiver and carried out
Prepare.Filtrate receiver outlet valve 19 is opened, valve 21 on conveyance conduit is opened and closes valve 20, opening delivery pump can accomplish.
Now the mother liquor of suction filtration is the saturated salt solution under normal temperature, is matched somebody with somebody after entering preparation kettle by adding solid base
System, and temperature is accordingly improved to 60~65 DEG C or so, solution is formulated into after pH value 7-10 alkaline absorption solution by taking out again
Filter is through filtrate receiver, and conveying is pumped back to progress sour gas absorption in circulation absorption system.
Those of ordinary skill in the art are understood that in whole process in addition to the solid salt that suction filtration goes out, molten without any saliferous
Liquid is discharged to outside system, so as to eliminate the processing of brine waste, substantially increases production cost.
One of ordinary skill in the art will appreciate that：It the foregoing is only the preferred embodiments of the present invention, and without
In the limitation present invention, although the present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it can still be modified to the technical scheme that foregoing embodiments are recorded, or which part technical characteristic is entered
Row equivalent substitution.Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., all should be included
Within protection scope of the present invention.
Claims (4)
1. a kind of sour gas circulation absorption system, it is characterised in that preparation kettle, suction filtration including passing sequentially through pipeline connection
Groove, filtrate receiver, two grades of sedimentation kettles, one-level sedimentation kettle, crystallization kettles, the crystallization kettle are connected by pipeline with suction filtration tank, and described one
Spray column, water sealed tank are sequentially provided with by pipeline connection between level sedimentation kettle and preparation kettle, the spray column is provided with sour gas
Body import, spray pump, solid-liquid separator are sequentially provided between two grades of sedimentation kettles and spray column by pipeline connection, described solid
Liquid/gas separator is connected with spray column, and the pipeline connected between the one-level sedimentation kettle and two grades of sedimentation kettles is provided with PH measuring instruments；
The preparation kettle is provided with solid base dog-house, and the connecting pipe between the filtrate receiver and two grades of sedimentation kettles is provided with conveying
Pump, the connecting pipe between the filtrate receiver and two grades of sedimentation kettles is drawn a lateral and is connected between water sealed tank and preparation kettle
Connecting pipe on, the filtrate receiver be provided with vacuum port.
2. a kind of sour gas circulation absorption system according to claim 1, it is characterised in that the water sealed tank is provided with
Air-introduced machine is provided with one exhaust duct, the exhaust duct.
3. a kind of sour gas circulation absorption system according to claim 1, it is characterised in that the crystallization kettle, preparation
PH measuring instruments are equipped with kettle.
4. a kind of sour gas circulation absorption system according to claim 1, it is characterised in that the preparation kettle, crystallization
Agitating device is equipped with kettle, one-level sedimentation kettle and two grades of sedimentation kettles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720079183.XU CN206414965U (en) | 2017-01-22 | 2017-01-22 | A kind of sour gas circulation absorption system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720079183.XU CN206414965U (en) | 2017-01-22 | 2017-01-22 | A kind of sour gas circulation absorption system |
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| Publication Number | Publication Date |
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| CN206414965U true CN206414965U (en) | 2017-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720079183.XU Active CN206414965U (en) | 2017-01-22 | 2017-01-22 | A kind of sour gas circulation absorption system |
Country Status (1)
| Country | Link |
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| CN (1) | CN206414965U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108273367A (en) * | 2018-04-04 | 2018-07-13 | 烟台国邦化工机械科技有限公司 | A kind of gas cleaning desalination process and system |
-
2017
- 2017-01-22 CN CN201720079183.XU patent/CN206414965U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108273367A (en) * | 2018-04-04 | 2018-07-13 | 烟台国邦化工机械科技有限公司 | A kind of gas cleaning desalination process and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200116 Address after: 221400 Xinyi Economic Development Zone, Jiangsu, Xuzhou Patentee after: Limin Chemical Co., Ltd. Address before: 221400, No. nine, No. 69, Tang Dian garden, Xinyi Economic Development Zone, Xuzhou, Jiangsu Patentee before: Limin Chemical Co., Ltd. |
|
| TR01 | Transfer of patent right |