CN205815417U - Mixing organic exhaust gas adsorption and regeneration recovery system - Google Patents
Mixing organic exhaust gas adsorption and regeneration recovery system Download PDFInfo
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- CN205815417U CN205815417U CN201620780433.8U CN201620780433U CN205815417U CN 205815417 U CN205815417 U CN 205815417U CN 201620780433 U CN201620780433 U CN 201620780433U CN 205815417 U CN205815417 U CN 205815417U
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- activated carbon
- vacuum pump
- exhaust gas
- tower
- regeneration
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- Separation Of Gases By Adsorption (AREA)
Abstract
The utility model discloses mixing organic exhaust gas adsorption and regeneration recovery system, including PLC and coupled activated carbon tower four, exhaust blower, flame-retardant device, admission line, recovery unit, activated carbon tower is provided with two rows, often row is provided with two, two rows are all connected with exhaust blower, the outfan of activated carbon tower connects buffer barrel, exhaust blower connects a converter, converter is by the Data Control of pipe end static pressure device and then the operating speed that controls exhaust blower, activated carbon tower is connected with one end of flame-retardant device, the other end of flame-retardant device is connected with admission line；Recovery unit includes vacuum pump three groups, water pumper, cold rinse bank, cooling bucket and recycling bin, and vacuum pump is connected with buffer barrel, and water pumper is connected with cold rinse bank, and cooling bucket one end is connected with vacuum pump, and the other end is connected with recycling bin.This utility model saves cost of manufacture, reduces environmental pollution.
Description
Technical field
This utility model relates to the recycling application containing volatile organic waste gas, particularly relates to a kind of mixing organic
Waste gas absorption and regeneration recovery system.
Background technology
Environmental protection treatment industry, is coated with containing electronics (containing PCB) industry, rubber industry, press, coating and ink manufacturing industry and surface
Dress industry etc., the processing method of its organic exhaust gas is as follows:.
One, washing and active carbon adsorption
(the volatilization of waste gas that the VOC concentration of the industry aerofluxus arranged due to general non-chemical industry is the highest and kind is the most various
Property organic species more than five or more), i.e. waste gas variation and concentration the highest, general traditional environment protection industry then take washing
Activated carbon adsorption or the two and process by mode.But owing to being ignorant of or cost-effective because of operating principle, or dealer
Know perfectly well and exceed standard and still discharge, and cause environmental pollution.It is described below:
1. water scrubber washing
Mostly it is dissolved in water due to volatile organic gas, but the person of being typically designed or owner all do not know when liquid phase coexists, and are
By Henry principle determine concentration of emission, even and if organic liquid is completely soluble, still can evaporate into gas phase gas by organic solvent
(ethanol is i.e. best example, and why one glass of Chinese liquor knows it is wine if being poured in cup, ethanol can be any in affected environmental pollution in body
Ratio is dissolved in water, and theory should not have ethanol to waft in air, but is known that it is the drinks work that is because Henry principle once hearing
With).
And the concentration discharged depends on solute solubility, ambient temperature, solute concentration and species physical property in water.
And sometimes for increasing the clearance of organic contamination in waste gas, owner (or live operator) enters with a large amount of clear water
Displacement waste water in water scrubber, causes secondary pollution to add the degree of difficulty that waste water processes.
2. activated carbon adsorption
Activated carbon adsorption is one of effective waste gas processing method, but actually still has the Difficult factors of part with existing environment
Need to be broken through, as described below:
1) design parameter and the opposite of cost
Logical tower (void tower) speed of activated carbon tower is most basic design parameter, which determines organic molecule gas phase and activated carbon
The stop swap time of absorption phase.Build cost owing to the size of logical tower speed directly affects, such as, general tower speed be 5m/s and
Tower speed is that the design of 1m/s is i.e. differing 5 times by activated filter film area, directly affects the construction cost of activated carbon tower, but
Effect produced by it is also different (clearance).
2) opposite of exhaust gas concentration and activated carbon beds thickness and cost
The time-histories of activated carbon tower replacing activated carbon is decided by concentration and the carbon bed thickness of waste gas, can be calculated by following two formula
It:
Activated carbon adsorption ability 250G-1KG (organic substance-activated carbon).
MG/M3=M/22.4XPPMX (273/ (273+T)) XP/101325
Wherein, MG/M3, unit volume discharge weight；M, molecular weight；PPM, concentration of emission；T, temperature；P, pressure.
And use unit, often change the most i.e. the cost of generation, and domestic replacing and regeneration expense be higher than buying new carbon,
And discarded activated carbon to be listed in danger useless, and make external the most mostly to become problematic at home in the method used.And activated carbon
It is changed without activated carbon (or regeneration activity carbon) after saturated, equal to without filling activated carbon, is definitely to pollute environment.
3. water scrubber+activated carbon absorption tower
Many units because of in the organic exhaust gas of discharge containing soda acid waste gas, do not give separation because of cost-effective when the pipe arrangement, make
When becoming waste gas finally to process, multiprocessing apparatus need to be designed；Or it is designed with multi task process because waste gas concentration of emission is higher
Equipment, but at last in the face of aforesaid problem, in addition to water scrubber meeting waste discharge (environmental protection secondary pollution), another problem eventually will
Faced by-" problem that activated carbon is saturated ", simply time length problem.
Two, waste gas burning method (zeolite runner absorption-RTO)
Waste gas burning method, is whether concentrated absorption by zeolite, or whether adds poultry hot type device in design, and environmental protection is empty
Gas prevention and cure of pollution process in, except in technology itself in addition to insurmountable problem, combustion method is at the environmental protection least advised
Reason method, no matter from the point of view of in any angle, the practice of this Dou Shi enterprise inappropriate process waste gas.Reason is as follows:
1. burning power consumption, wastes resource, and what environmental protection itself was pursued is exactly carbon reduction, and combustion method need to use fuel (general
Design uses natural gas), burning causes global warming, runs in the opposite direction with environmental conservation purpose, makes to solve a kind of pollution
Becoming another kind to pollute, referred to as secondary pollution, because avoiding design to use as far as possible.
2. organic solvent adds for process requirement, has its necessity, if there being recovery method feasible, recovery
Organic solvent, can effectively be back in industrial process, even being recovered as multiple mixed organic solvents, available chemical industry finely divides
Fraction is from it.
Three, alternating temperature De contamination
Organic exhaust gas adsorbs with activated carbon in normal temperature and pressure, saturated after, live with the steam more than 200 DEG C
The desorption organic solvent behavior of property carbon, this regeneration can make activated carbon beds because being regenerated by Gao Re.When high temperature, activity
Carbon bed is regenerated and reuses, and reusable activated carbon will not go out of use in the way of danger is useless.But because using water
Steam and the problem that produces, be described below:
1. boiler is the equipment producing steam, also calculates the bigger one of energy loss, in engineering build need to compile other pre-
Calculate, need to obtain owner agree to, separately, high-pressure steam arrange need particular applications examine by beginning to build, because of boiler produce
Steam need temperature more than 200 DEG C, belong to high-pressure bottle, it operates with and need to meet management regulation.
2., owing to using high pressure-temperature steam, after contact activated carbon beds, become aqueous solution, though activated carbon regenerates repeatable
Use, but produce too much aqueous solution and cause secondary pollution, for reclaiming, will purify and separately to need to consume many energy again.
Utility model content
For overcoming disadvantages mentioned above, the purpose of this utility model is to provide mixing organic exhaust gas adsorption and regeneration to reclaim system
System, to reach to save cost of manufacture, reduces the purpose of environmental pollution.
In order to reach object above, the technical solution adopted in the utility model is: mixes organic exhaust gas adsorption and regenerates back
Receipts system, including PLC and coupled activated carbon tower four, exhaust blower, flame-retardant device, admission line, recovery list
Unit, described activated carbon tower is provided with two rows, and often row is provided with two, and two rows are all connected with described exhaust blower, described activated carbon
The outfan of tower connects buffer barrel, and described exhaust blower connects a converter, and described converter is by pipe end static pressure device
Data Control and then the operating speed of control exhaust blower, described activated carbon tower is connected with one end of flame-retardant device, described flame-retardant device
The other end be connected with described admission line；Described recovery unit includes vacuum pump three groups, water pumper, cold rinse bank, cooling bucket
And recycling bin, described vacuum pump is connected with buffer barrel, and described water pumper is connected with cold rinse bank, and described cooling bucket one end is with true
Empty pump is connected, and the other end is connected with recycling bin.Native system can realize absorption by activated carbon tower and regeneration combines, at warp
Cross recovery unit organic exhaust gas is effectively reclaimed, it is to avoid secondary pollution that organic exhaust gas causes and power consumption, it is to avoid CO2's
Discharge, effectively saves cost of manufacture, reduces environmental pollution.
Further, a described activated carbon tower wherein row is adsorbed state, and another row is reproduced state, and two states is alternately
Work, is independent of each other.
Further, described pipe end static pressure device is automatic tracing controller so that it is control data more accurate.
Further, vacuum pump described in three groups arrange wherein two groups be operating state, another group is for resting state, according to respectively
Which the different conditions of valve controls is resting state, and which two is operating state.
Further, described water pumper has been arranged in parallel two, and two water pumpers are used alternatingly, it is to avoid go out during used aloned
After existing fault, whole system needs to suspend.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the present embodiment.
Detailed description of the invention
Below in conjunction with the accompanying drawings preferred embodiment of the present utility model is described in detail, so that advantage of the present utility model
Can be easier to be readily appreciated by one skilled in the art with feature, thus protection domain of the present utility model is made apparent clearly
Define.
Seeing shown in accompanying drawing 1, the mixing organic exhaust gas adsorption of the present embodiment and regeneration recovery system, including PLC
With coupled activated carbon tower four, exhaust blower, flame-retardant device, admission line, recovery unit, activated carbon tower is provided with parallel connection
Two rows, often row be provided with two, two rows are all connected with exhaust blower, and an activated carbon tower wherein row is adsorbed state, another arrange
For reproduced state, two states alternation, being independent of each other, the outfan of activated carbon tower connects buffer barrel, and exhaust blower connects
Having a converter, converter is by the Data Control of pipe end static pressure device and then the operating speed that controls exhaust blower, and pipe end is quiet
Depressor is automatic tracing controller so that it is controlling data more accurate, activated carbon tower is connected with one end of flame-retardant device, flame-retardant device
The other end be connected with admission line, admission line end is connected with organic waste QI KOU, it is provided that organic exhaust gas；Recovery unit includes
Vacuum pump three groups, water pumper, cold rinse bank, cooling bucket and recycling bin, vacuum pump wherein two groups be operating state, another group is for standby
By state, vacuum pump is connected with buffer barrel, by the organic exhaust gas of buffer barrel internal adsorption and regeneration with vacuum extract out, water pumper with
Cold rinse bank is connected, and cold rinse bank is connected with the running water pipe for moisturizing, provides cooling for recovery unit, and cooling bucket one end is with true
Empty pump is connected, and is lowered the temperature by the organic exhaust gas that vacuum is extracted out again, and the other end is connected with recycling bin, and recycling bin is carried out
Unified recovery.
Native system emphasis following some:
One, absorption
Adsorption process is according to Fick's law, and mainly with extension as power, it can be divided into external diffusion, diffusion into the surface (and absorption)
And hole diffusion (inner surface diffusion and absorption), adsorbent is with the selections CP value of activated carbon for higher, when adsorbent passes through to run through
During point, it is impossible to adsorb adsorbate again, it is referred to as to call saturated.
In order to active adsorption removes organic solvent material, activated carbon Deethanizer design has four, and the filling thickness of every is 100 public affairs
Point, two groups use online, and another two groups is spare unit (after regeneration completes).
Two, regeneration
The regeneration (De contamination behavior) of activated carbon can be considered that the reverse behavior of absorption, i.e. activated carbon adsorption each other may be used with regeneration
Drive in the wrong direction and be.For objective, as long as confirming which kind of behavior is operating condition be, confirm purpose.For example, activated carbon is when discharge
During to atmospheric environment, in order to by environmental emission standard, exhaust gas (improving activated carbon adsorption amount) can be adsorbed in waste gas
Organic pollution, when adsorption process completes, waste gas can be discharged by environmental protection standard.Otherwise, when activated carbon is saturation, for
Reuse activated carbon, regeneration activity carbon, now utilize vacuum pump pressure, i.e. reduce activated carbon surface concentration, reverse push power,
By organic solvent molecule De contamination, reach carbon, C regeneration purpose.
Native system principle and step are as follows:
One, absorption automatically controls
1. exhaust blower K startup (time automatic) is manipulated by converter, and converter is then by the Data Control of pipe end static pressure
(PID, automatic tracing controls).
The most now should push button switch " S1 in control panel；S2 ", wherein " S1 " representative " system 1 is run "；" S2 " generation
Table " system 2 is run ".
3. when " S1 " runs, valve " H01 "～" H03 " " ON "；Valve " H04 "～" H06 " " OFF ".
4. when " S2 " runs, valve " H01 "～" H03 " " OFF "；Valve " H04 "～" H06 " " ON ".
5. in PLC notice regeneration, time budgetary estimate as described below.
Two, saturated (saturated and regeneration calculations) is automatically controlled
As a example by the organic solvent emission of a certain enterprise is for 500PPM AS CH4, operate every day 24 hours, during saturated regeneration
Between be calculated as follows:
Activated carbon adsorption ability 250G-1KG (organic substance-activated carbon).
MG/M3=M/22.4XPPMX (273/ (273+T)) XP/101325
Activated carbon apparent specific gravity (gd) is set to 650KG/M3, and with logical tower speed 1.0M/S, single-activity carbon tower loading is 5400KG.
Adsorbable organic solvent is up to 5400X2 (double tower) X0.25=2700KG
CH4=12+1X4=16
MG/M3=16/22.4X500X (273/ (273+25)) X1=327MG/M3
Discharge capacity=500 (M3/MIN, CMM) X327X24 (HR/D) X60 (MIN/HR) X1/106 every day (KG/MG)=
325KG
Activated carbon tower clearance is assumed to be 95%, and concentration of emission is 500X0.05=25PPM
Effectively removing organic solvent every day is 325X0.95=309KG
Activated carbon tower can be with 5400/309=17.47 working day of natural law
Calculating is learnt, designed system must switch to another system after about 10～15 days, and system regenerates originally, week
And renew, perform " absorption-saturated-regeneration-absorption " pattern, life and growth in nature.Wherein controlled some switching time by PLC.
Three, vacuum regeneration (De contamination) automatically controls
1. being switched to " S1 " operating when system by " S2 " operating, " activated carbon tower-01 " and " activated carbon-02 " are in adsorption-like
State, system " S2 " is in vacuum regeneration state (" activated carbon-03 " and " activated carbon-04 " regenerate), now valve " H01 "～
“H03”“ON”；Valve " H04 "～" H06 " " OFF "；Valve " J01 " and " J03 " " OFF "；Valve " J02 ", " J04 " " ON ".
2. regenerate when system " S2 ", i.e. " activated carbon-03 " and " activated carbon-04 " when regeneration De contamination starts, " vacuum pump-
02 " and " vacuum pump-03 " running, valve " J06 ", " J07 ", " J09 ", " J11 ", " J15 " and " J13 " " ON "；Valve " J05 ", "
J08 ", " J10 ", " J14 " and " J12 " " OFF ".
3. start when system " S2 " regeneration, but " vacuum pump-02 " fault, now " vacuum pump-01 " and " vacuum pump-03 " moves
Make, valve " J05 ", " J07 ", " J08 ", " J09 ", " J11 ", " J15 " and " J13 " " ON "；Valve " J06 ", " J10 ", " J14
" and " J12 " " OFF ", fault moves report action.
4. start when system " S2 " regeneration, but " vacuum pump-03 " fault, now " vacuum pump-01 " and " vacuum pump-02 " moves
Make, valve " J05 ", " J06 ", " J08 ", " J10 ", " J12 " and " J14 " " ON "；Valve " J07 ", " J09 ", " J11 ", " J13
" and " J15 " " OFF ", fault moves report action.
5. start when " vacuum pump-01 " or " vacuum pump-02 " starts or " vacuum pump-03 " starts, with circulating chilled water system
System valve " Q01 " or " Q02 " or " Q03 " " ON "；Synchronize, when " vacuum pump-01 " opens barrier or " vacuum pump-02 " fault or " vacuum
Pump-03 " fault, with cold water circulating system valve " Q01 " or " Q02 " or " Q03 " " OFF ", when vacuum pump up dynamic arbitrary or
Two, " water pumper R-01 " and " water pumper R-02 " two one after the others start wherein one, and fault is moved report action and starts another
One.
6. when cold water line temperature sensor is more than 50 DEG C, pipe valve " Q04 " " ON ", " Q05 " " OFF "；Otherwise, temperature
When degree is not less than 50 DEG C, pipe valve " Q05 " " ON ", " Q04 " " OFF ".
7. having regenerated (after estimating 20 hours) when system " S2 ", all vacuum pumps decommission, now, and valve " J01 "
～" J15 " total system " OFF "；" Q01 "～" Q05 " total system " OFF ".
8. adsorbing saturated must carrying out when system " S1 " and regenerate (after estimating 10 days), operator may utilize control panel and switches to
" S2 " system is adsorbed, and now " activated carbon tower-03 " and " activated carbon-04 " are in adsorbed state, and system " S1 " is in vacuum
Reproduced state (" activated carbon-01 " and " activated carbon-02 " regenerates), now valve " H04 "～" H06 " " ON "；Valve " H01 "～
“H03”“OFF”；Valve " J01 " and " J03 " " ON "；Valve " J02 ", " J04 " " OFF ".
9. regenerate when system " S1 ", i.e. " activated carbon-01 " and " activated carbon-02 " when regeneration De contamination starts, " vacuum pump-
01 " and " vacuum pump-02 " running, valve " J05 ", " J06 ", " J08 ", " J10 ", " J12 " and " J14 " " ON "；Valve " J07 ", "
J09 ", " J11 ", " J13 " and " J15 " " OFF ".
10. start when system " S1 " regeneration, but " vacuum pump-02 " fault, now " vacuum pump-01 " and " vacuum pump-03 "
Action, valve " J05 ", " J07 ", " J08 ", " J09 ", " J10 ", " J12 " and " J14 " " ON "；Valve " J06 ", " J11 ", " J13
" and " J15 " " OFF ", fault moves report action.
11. start when system " S1 " regeneration, but " vacuum pump-01 " fault, now " vacuum pump-02 " and " vacuum pump-03 "
Action, valve " J06 ", " J07 ", " J09 ", " J11 ", " J13 " and " J15 " " ON "；Valve " J05 ", " J08 ", " J10 ", " J12
" and " J14 " " OFF ", fault moves report action.
12. start or " vacuum pump-03 " startup when " vacuum pump-01 " startup or " vacuum pump-02 ", with circulating chilled water system
System valve " Q01 " or " Q02 " or " Q03 " " ON "；Synchronize, when " vacuum pump-01 " opens barrier or " vacuum pump-02 " fault or " vacuum
Pump-03 " fault, with cold water circulating system valve " Q01 " or " Q02 " or " Q03 " " OFF ", when vacuum pump up dynamic arbitrary or
Two, " water pumper R-01 " and " water pumper R-02 " two one after the others start wherein one, and fault is moved report action and starts another
One.
13. when cold water line temperature sensor is more than 50 DEG C, pipe valve " Q04 " " ON ", " Q05 " " OFF "；Otherwise,
When temperature is not less than 50 DEG C, pipe valve " Q05 " " ON ", " Q04 " " OFF ".
14. have regenerated (after estimating 20 hours) when system " S2 ", and all vacuum pumps decommission, now, and valve " J01 "
～" J15 " total system " OFF "；" Q01 "～" Q05 " total system " OFF ".
15. systems " S1 ", according to " absorption-saturated-regeneration " pattern, switch mutually running with system " S2 ".
Embodiment of above only for technology of the present utility model design and feature are described, its object is to allow and is familiar with this skill
The people of art understands content of the present utility model and is carried out, and can not limit protection domain of the present utility model with this, all
The equivalence change done according to this utility model spirit or modification, all should contain in protection domain of the present utility model.
Claims (5)
1. mixing organic exhaust gas adsorption and regeneration recovery system, it is characterised in that: include PLC and coupled work
Property four, charcoal tower, exhaust blower, flame-retardant device, admission line, recovery unit, described activated carbon tower is provided with two rows, often row be provided with
Two, two rows are all connected with described exhaust blower, and the outfan of described activated carbon tower connects buffer barrel, and described exhaust blower connects
Having a converter, described converter is by the Data Control of pipe end static pressure device and then the operating speed that controls exhaust blower, described
Activated carbon tower is connected with one end of flame-retardant device, and the other end of described flame-retardant device is connected with described admission line；Described recovery
Unit includes vacuum pump three groups, water pumper, cold rinse bank, cooling bucket and recycling bin, and described vacuum pump is connected with buffer barrel, described
Water pumper is connected with cold rinse bank, and described cooling bucket one end is connected with vacuum pump, and the other end is connected with recycling bin.
Mixing organic exhaust gas adsorption the most according to claim 1 and regeneration recovery system, it is characterised in that: described activated carbon
A tower wherein row is adsorbed state, and another row is reproduced state.
Mixing organic exhaust gas adsorption the most according to claim 1 and regeneration recovery system, it is characterised in that: described pipe end
Static pressure device is automatic tracing controller.
Mixing organic exhaust gas adsorption the most according to claim 1 and regeneration recovery system, it is characterised in that: true described in three groups
Empty pump arrange wherein two groups be operating state, another group is resting state.
Mixing organic exhaust gas adsorption the most according to claim 1 and regeneration recovery system, it is characterised in that: described water pumper
Two are arranged in parallel it.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620780433.8U CN205815417U (en) | 2016-07-20 | 2016-07-20 | Mixing organic exhaust gas adsorption and regeneration recovery system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620780433.8U CN205815417U (en) | 2016-07-20 | 2016-07-20 | Mixing organic exhaust gas adsorption and regeneration recovery system |
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| Publication Number | Publication Date |
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| CN205815417U true CN205815417U (en) | 2016-12-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI681807B (en) * | 2018-08-17 | 2020-01-11 | 精遠科技有限公司 | Heatless regeneration system and method thereof |
-
2016
- 2016-07-20 CN CN201620780433.8U patent/CN205815417U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI681807B (en) * | 2018-08-17 | 2020-01-11 | 精遠科技有限公司 | Heatless regeneration system and method thereof |
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