CN108744829A - It is a kind of to desorb exhaust treatment system for the indirect thermal of mercurous solid waste and soil treatment - Google Patents
It is a kind of to desorb exhaust treatment system for the indirect thermal of mercurous solid waste and soil treatment Download PDFInfo
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- CN108744829A CN108744829A CN201810791131.4A CN201810791131A CN108744829A CN 108744829 A CN108744829 A CN 108744829A CN 201810791131 A CN201810791131 A CN 201810791131A CN 108744829 A CN108744829 A CN 108744829A
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- 239000002689 soil Substances 0.000 title claims abstract description 16
- 239000002910 solid waste Substances 0.000 title claims abstract description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 42
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 34
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 34
- 238000001179 sorption measurement Methods 0.000 claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 238000011068 loading method Methods 0.000 claims abstract description 30
- 238000000197 pyrolysis Methods 0.000 claims abstract description 30
- 238000005201 scrubbing Methods 0.000 claims abstract description 30
- 239000011593 sulfur Substances 0.000 claims abstract description 29
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims abstract description 27
- 238000005406 washing Methods 0.000 claims abstract description 23
- 238000003795 desorption Methods 0.000 claims abstract description 21
- 238000005057 refrigeration Methods 0.000 claims abstract description 12
- 239000007921 spray Substances 0.000 claims abstract description 6
- 238000007599 discharging Methods 0.000 claims description 16
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 16
- 229910052753 mercury Inorganic materials 0.000 claims description 16
- 239000011214 refractory ceramic Substances 0.000 claims description 12
- 239000000919 ceramic Substances 0.000 claims description 8
- 239000005864 Sulphur Substances 0.000 claims description 5
- 239000003610 charcoal Substances 0.000 claims description 5
- 239000000428 dust Substances 0.000 claims description 4
- 238000012546 transfer Methods 0.000 claims description 4
- 239000002351 wastewater Substances 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 2
- 239000012774 insulation material Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 239000003595 mist Substances 0.000 claims description 2
- 230000007423 decrease Effects 0.000 claims 1
- 238000010828 elution Methods 0.000 claims 1
- 239000000945 filler Substances 0.000 claims 1
- 238000007710 freezing Methods 0.000 claims 1
- 230000008014 freezing Effects 0.000 claims 1
- 230000008676 import Effects 0.000 abstract 2
- 239000007789 gas Substances 0.000 description 39
- 238000005516 engineering process Methods 0.000 description 8
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 239000002250 absorbent Substances 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000012286 potassium permanganate Substances 0.000 description 2
- 241000370738 Chlorion Species 0.000 description 1
- 239000005708 Sodium hypochlorite Substances 0.000 description 1
- PDCULOOSTZMYBM-UHFFFAOYSA-N [Cl].[Hg] Chemical compound [Cl].[Hg] PDCULOOSTZMYBM-UHFFFAOYSA-N 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 229910000474 mercury oxide Inorganic materials 0.000 description 1
- BQPIGGFYSBELGY-UHFFFAOYSA-N mercury(2+) Chemical compound [Hg+2] BQPIGGFYSBELGY-UHFFFAOYSA-N 0.000 description 1
- UKWHYYKOEPRTIC-UHFFFAOYSA-N mercury(ii) oxide Chemical compound [Hg]=O UKWHYYKOEPRTIC-UHFFFAOYSA-N 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 210000000952 spleen Anatomy 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1406—Multiple stage absorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1431—Pretreatment by other processes
- B01D53/145—Pretreatment by separation of solid or liquid material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/06—Reclamation of contaminated soil thermally
- B09C1/065—Reclamation of contaminated soil thermally by pyrolysis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/60—Heavy metals or heavy metal compounds
- B01D2257/602—Mercury or mercury compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Treating Waste Gases (AREA)
Abstract
It is a kind of to desorb exhaust treatment system for the indirect thermal of mercurous solid waste and soil treatment, belong to thermal desorption exhaust treatment system technical field.The pyrolysis gas outlet end of thermal desorption equipment is connected with the pyrolysis gas arrival end of heat filter, the pyrolysis gas outlet end of heat filter is connected with the pyrolysis gas arrival end of chilling scrubbing tower, the gas vent of chilling scrubbing tower connects Venturi scrubber import, the outlet bonding pad scrubbing tower import of Venturi scrubber, stuffing washing tower and refrigeration unit are connect with condenser coil, condenser coil end connects demister, the outlet of demister is connected with the entrance of sulfur loading active carbon adsorption tanks, the outlet of sulfur loading active carbon adsorption tanks is connected with the air inlet of air-introduced machine, the air outlet of air-introduced machine is connected with chimney, chilling scrubbing tower, the water outlet of stuffing washing tower and condenser coil is connected with the water inlet of technique water treatment unit, the water outlet of technique water treatment unit is connected with the spray equipment inside chilling scrubbing tower and stuffing washing tower.
Description
Technical field
Exhaust treatment system being desorbed for the indirect thermal of mercurous solid waste and soil treatment the present invention relates to a kind of, belongs to pyrolysis
Inhale exhaust treatment system technical field.
Background technology
Be pyrolyzed adsorption technology because its processing time is short, repairing effect is good, secondary pollution is small the features such as, it is considered to be processing it is highly concentrated
Spend one of the best-of-breed technology of mercurous waste.Pyrolysis adsorption technology is the volatile characteristic using mercury, and mercurous waste is heated, absorption is made
Mercury and mercuric compounds in soil evaporate in a gaseous form, finally focus on a kind of skill of these gaseous pollutants
Art.Therefore, when waste mercurous using thermal desorption technical finesse, thermal desorption exhaust treatment system and method are particularly important.Contain
There are mainly three types of the processing methods of mercury tail gas：First, active carbon adsorption, the method is sent out using activated carbon internal pore structure
Reach, the characteristic that large specific surface area, adsorption capacity are strong adsorbs mercury, can also activated carbon be base charcoal, be added has strong parent with mercury
With the element of power, in order to improve adsorption efficiency, such as active carbon loading silver and sulfur loading active carbon.The disadvantages of this method is that treated
Tail gas is difficult qualified discharge, and activated carbon replacement is very frequent, and the waste heat in thermal desorption tail gas is difficult to utilize again, causes energy
Source wastes.Second is that absorption process, mercury vapour can be switched to mercury oxide by common potassium permanganate or liquor natrii hypochloritis, potassium permanganate rapidly
Mercury vapour can be switched to mercury ion rapidly and generate chlorine mercury complex ion with chlorion by precipitation, sodium hypochlorite.The purification of this method is imitated
Rate is higher, but all there are problems that selfdecomposition and the after-treatment of mercury.Third, air setting+active carbon adsorption, condenser (air
Condensation) be used as first class purification equipment, active carbon adsorber to be then used as secondary purification equipment, by first condense afterwards the two level adsorbed it is net
After change, the mercurous concentration of tail gas reaches discharging standards.
Invention content
The purpose of the present invention is to solve the above-mentioned problems of the prior art, and then provide a kind of for mercurous solid waste
And the indirect thermal of soil treatment desorbs exhaust treatment system.
The purpose of the present invention is what is be achieved through the following technical solutions：
It is a kind of to desorb exhaust treatment system, thermal desorption equipment, heat filtering for the indirect thermal of mercurous solid waste and soil treatment
Device, chilling scrubbing tower, Venturi scrubber, stuffing washing tower, condenser coil, demister, refrigeration unit, sulfur loading active carbon absorption
Tank, air-introduced machine, chimney and technique water treatment unit, the pyrolysis gas outlet end of the thermal desorption equipment and the pyrolysis gas of heat filter
Arrival end is connected, and the pyrolysis gas outlet end of heat filter is connected with the pyrolysis gas arrival end of chilling scrubbing tower, chilling washing
Venturi scrubber is connected between the lower part of tower and the lower part of stuffing washing tower, refrigeration unit is connect with condenser coil, condensation
Coil pipe end connects demister, and the outlet of demister is connected with the entrance of sulfur loading active carbon adsorption tanks, sulfur loading active carbon absorption
The outlet of tank is connected with the air inlet of air-introduced machine, and the air outlet of air-introduced machine is connected with chimney, chilling scrubbing tower, padding washing
The water outlet of tower and condenser coil is connected with the water inlet of technique water treatment unit, and the water outlet of technique water treatment unit is equal
It is connected with the spray equipment inside chilling scrubbing tower and stuffing washing tower.
Compared with prior art, the present invention has the following advantages：
(1) high-temperature dust removal technology, tail gas condensing technology and active carbon adsorption technology is used in combination to mercurous high temperature in the present invention
Tail gas is handled, it is made to be fully purified, and reaches national relevant emission standards.
(2) it is 95~99.9% that the present invention, which uses high-temperature dust removal technology, efficiency of dust collection, can substantially reduce SS in technique waste water
Content reduces process water intractability.
(3) present invention can Fast Installation with dismounting, facilitate transfer transport, meet equipment fast transfer, continuous use need
It asks.
(4) technique waste water generated in chilling scrubbing tower and stuffing washing tower in the present invention after processing can fully recovering in
This unit economizes on resources without outer row.
Description of the drawings
Fig. 1 is structural schematic diagram of the present invention for mercurous solid waste and the system of soil thermal desorption vent gas treatment.
Fig. 2 is the schematic diagram of heat filter 2.
Fig. 3 is the schematic diagram of sulfur loading active carbon adsorption tanks 9.
Reference numeral in figure, 1 is thermal desorption equipment, and 2 be heat filter, and 3 be chilling scrubbing tower, and 4 be Venturi scrubbing
Device, 5 be stuffing washing tower, and 6 be condenser coil, and 7 be demister, and 8 be refrigeration unit, and 9 be sulfur loading active carbon adsorption tanks, and 10 be to draw
Wind turbine, 11 be chimney, and 12 be technique water treatment unit, and 13 be pyrolysis rotary kiln discharge port, and 14 be discharging bin；15 turn over for discharging bilayer
Plate valve, 16 be refractory ceramics film dust-remover, and 17 be ceramic filter element, and 18 be No. 1 outlet valve, and 19 be No. 2 outlet valves,
20 be No. 1 cylinder, and 21 be No. 2 cylinders, and 22 be heat filter gas outlet, and 23 be sulfur loading active carbon adsorption tanks air inlet, and 24 be to carry
Sulphur activated carbon, 25 be sulfur loading active carbon adsorption tanks gas outlet.
Specific implementation mode
Below in conjunction with attached drawing, the present invention is described in further detail：The present embodiment is being with technical solution of the present invention
Under the premise of implemented, give detailed embodiment, but protection scope of the present invention is not limited to following embodiments.
As shown in FIG. 1 to 3, a kind of for the desorption of the indirect thermal of mercurous solid waste and soil treatment involved by the present embodiment
Exhaust treatment system include thermal desorption equipment 1, heat filter 2, chilling scrubbing tower 3, Venturi scrubber 4, stuffing washing tower 5,
Condenser coil 6, demister 7, refrigeration unit 8, sulfur loading active carbon adsorption tanks 9, air-introduced machine 10, chimney 11 and technique water treatment unit
12, the pyrolysis gas outlet end of the thermal desorption equipment 1 is connected with the pyrolysis gas arrival end of heat filter 2, the heat of heat filter 2
Outlet end of venting one's spleen is connected with the pyrolysis gas arrival end of chilling scrubbing tower 3, is connected between chilling scrubbing tower 3 and stuffing washing tower 5
There are Venturi scrubber 4, refrigeration unit 8 to be connect with condenser coil 6,6 end of condenser coil connects demister 7, and demister 7 goes out
Mouth is connected with the entrance of sulfur loading active carbon adsorption tanks 9, the outlet of sulfur loading active carbon adsorption tanks 9 and the air inlet phase of air-introduced machine 10
Connection, the air outlet of air-introduced machine 10 are connected with chimney 11, the outlet of chilling scrubbing tower 3, stuffing washing tower 5 and condenser coil 6
Be connected with the water inlet of technique water treatment unit 12, the water outlet of technique water treatment unit 12 with chilling scrubbing tower 3 and
Spray equipment inside stuffing washing tower 5 is connected.
Pyrolysis of the thermal desorption equipment 1 for mercurous solid waste and soil, the pyrolysis gas generated are delivered to heat by the road
Filter 2.The heat filter 2 is dedusting and discharging integrated apparatus, and the lower end of heat filter 2 is discharging bin 14, heat filtering
The upper end of device 2 is refractory ceramics film dust-remover 16, the lower end connection discharging double-layer flap valve 15 of discharging bin 14.Object after pyrolysis
Material enters in discharging bin 14 under the effect of gravity, and dust-laden thermal desorption gas enters the refractory ceramics film dust-remover of upper end along side wall
16, dust-laden high-temperature gas flows into ceramic filter room, radially penetrates into each filter element --- ceramic element inner cavity, and in pipe
Clean gas collecting chamber is inside imported in an axial direction, and last clean high-temperature gas is discharged into three-level cooling removal of mercury list by outlet pipe
First (i.e. chilling scrubbing tower 3, Venturi scrubber 4, stuffing washing tower 5, condenser coil 6, demister 7, refrigeration unit 8 and technique
Water treatment unit 12).
The refractory ceramics film dust-remover 16 is by 17, No. 1 pyrolysis rotary kiln discharge port 13, ceramic filter element outlet valves
18, No. 2 cylinders 21 of cylinder 20,2 of outlet valve 19,1 and heat filter gas outlet 22 form, and ceramic filter element 17 is arranged
Inside refractory ceramics film dust-remover 16, discharging bin is arranged in refractory ceramics film dust-remover 16 in pyrolysis rotary kiln discharge port 13
14 top；16 top of the refractory ceramics film dust-remover is equipped with 21, No. 1 cylinder 20 of No. 1 cylinder 20 and No. 2 cylinders for controlling
It is normally open that 18, No. 2 cylinders 21 of No. 1 outlet valve, which are made, for controlling 19, No. 1 outlet valve of No. 2 outlet valves.Further
, the outside of the heat filter 2 and its gas transfer pipeline are wrapped up by thermal insulation material.
The chilling scrubbing tower 3 is atomizing spray tower structure, and nozzle is annularly arranged in tower top, for cooling down mercurous tail
Gas absorbs mercury and mercuric compounds in tail gas；The Venturi scrubber 4 can remove particulate collection remaining in gas phase；Institute
It states and is equipped with filled layer in stuffing washing tower 5, accumulated with solution contact surface with increasing mercurous tail gas, ensure the abundant leaching to mercurous tail gas
It washes, and pyrolysis gas temperature is made to be down to 60 DEG C or less；The condenser coil 6 connects refrigeration unit 8 and demister 7, and condenser coil 6 exists
Pyrolysis gas temperature is further decreased under the action of refrigeration unit 8, and further condenses the mercury in tail gas, demister 7 is for going
Except the drop or water mist in residual exhaust.The technique water treatment unit 12 connects chilling scrubbing tower 3, stuffing washing tower 5 and cold
Solidifying coil pipe 6, the technique waste water that three devices generate is collected, is disposed, and will handle water up to standard and be back to chilling scrubbing tower 3
With stuffing washing tower 5.
The sulfur loading active carbon adsorption tanks 9 are plural serial stage device, are connected with 7 tail end of demister, built-in to carry sulphur activity
Charcoal can fully remove remaining mercury in tail gas, make tail gas qualified discharge.
The sulfur loading active carbon adsorption tanks 9 are by tank body, sulfur loading active carbon adsorption tanks air inlet 23, sulfur loading active carbon 24 and carry
Sulphur absorbent charcoal adsorption tank gas outlet 25 forms, and tank body is connected in series with, and sulfur loading active carbon 24, the upper end of initial tank body are equipped in tank body
Equipped with sulfur loading active carbon adsorption tanks air inlet 23, the upper end of end tank body is equipped with sulfur loading active carbon adsorption tanks gas outlet 25.Carry sulphur
Absorbent charcoal adsorption tank air inlet 23 is connected with the heat filter gas outlet 22 of heat filter 2.
The air-introduced machine can make thermal desorption unit keep tiny structure, and the gas sucked out with guarantee pyrolysis is not excessive and to the greatest extent may be used
The few generation solid particulate matter of energy.The chimney is discharged into the air for handling rear tail gas up to standard.
Embodiment 1
In certain mercury contaminated soil rehablitation project, using thermal desorption exhaust treatment system shown in FIG. 1 to mercurous tail gas into
Row processing, after testing, mercury content is only 0.00085mg/m in emission3, it is far below《Atmosphere pollution comprehensive discharge standard》Two
Grade discharge standard (0.012mg/m3)。
The foregoing is only a preferred embodiment of the present invention, these specific implementation modes are all based on the present invention
Different realization methods under general idea, and scope of protection of the present invention is not limited thereto, it is any to be familiar with the art
Technical staff in the technical scope disclosed by the present invention, the change or replacement that can be readily occurred in, should all cover the present invention
Within protection domain.Therefore, the scope of protection of the invention shall be subject to the scope of protection specified in the patent claim.
Claims (5)
1. a kind of desorbing exhaust treatment system for the indirect thermal of mercurous solid waste and soil treatment, which is characterized in that including pyrolysis
Inhale equipment (1), heat filter (2), chilling scrubbing tower (3), Venturi scrubber (4), stuffing washing tower (5), condenser coil
(6), demister (7), refrigeration unit (8), sulfur loading active carbon adsorption tanks (9), air-introduced machine (10), chimney (11) and technique water process
The pyrolysis gas outlet end of unit (12), the thermal desorption equipment (1) is connected with the pyrolysis gas arrival end of heat filter (2), heat
The pyrolysis gas outlet end of filter (2) is connected with the pyrolysis gas arrival end of chilling scrubbing tower (3), chilling scrubbing tower (3) and fills out
It is connected with Venturi scrubber (4) between material scrubbing tower (5), refrigeration unit (8) is connect with condenser coil (6), condenser coil (6)
End connects demister (7), and the outlet of demister (7) is connected with the entrance of sulfur loading active carbon adsorption tanks (9), sulfur loading active carbon
The outlet of adsorption tanks (9) is connected with the air inlet of air-introduced machine (10), and the air outlet of air-introduced machine (10) is connected with chimney (11),
Water inlet of the water outlet of chilling scrubbing tower (3), stuffing washing tower (5) and condenser coil (6) with technique water treatment unit (12)
Mouthful be connected, the water outlet of technique water treatment unit (12) with the spray inside chilling scrubbing tower (3) and stuffing washing tower (5)
Device is connected.
2. the system according to claim 1 for being used for mercurous solid waste and soil thermal desorption vent gas treatment, which is characterized in that institute
It is discharging and dust removal integrated plant to state heat filter (2), including discharging bin (14), discharging double-layer flap valve (15), high temperature resistant
The lower end of ceramic film dust-remover (16) three parts, the refractory ceramics film dust-remover (16) is discharging bin (14), and discharging is double-deck
Flap valve (15) is connected with the lower end of discharging bin (14), and the refractory ceramics film dust-remover (16) is by pyrolysis rotary kiln discharge port
(13), ceramic filter element (17), No. 1 outlet valve (18), No. 2 outlet valves (19), No. 1 cylinder (20), No. 2 cylinders (21)
It is formed with heat filter gas outlet (22), ceramic filter element (17) setting is internal in refractory ceramics film dust-remover (16), heat
Rotary kiln discharge port (13) is solved to be arranged on the top of refractory ceramics film dust-remover (16) interior discharging bin (14)；The refractory ceramics
No. 1 cylinder (20) and No. 2 cylinders (21) are equipped at the top of film dust-remover (16), No. 1 cylinder (20) is for controlling No. 1 outlet valve
(18), No. 2 cylinders (21) are normally open for controlling No. 2 outlet valves (19), No. 1 outlet valve.
3. the system according to claim 2 for being used for mercurous solid waste and soil thermal desorption vent gas treatment, which is characterized in that institute
The outside and its gas transfer pipeline for stating heat filter (2) are wrapped up by thermal insulation material, reduce heat loss.
4. the system according to claim 3 for being used for mercurous solid waste and soil thermal desorption vent gas treatment, which is characterized in that institute
It is atomizing spray tower structure to state chilling scrubbing tower (3), and nozzle is annularly arranged in tower top, for cooling down mercurous tail gas, absorbs tail
Mercury and mercuric compounds in gas；The Venturi scrubber (4) can remove particulate collection remaining in gas phase；The filler is washed
It washs and is equipped with filled layer in tower (5), accumulated with solution contact surface with increasing mercurous tail gas, ensure the abundant elution to mercurous tail gas, and
Make the reduction of pyrolysis gas temperature；Condenser coil (6) the connection refrigeration unit (8) and demister (7), condenser coil (6) are freezing
Unit further decreases pyrolysis gas temperature under the action of (8), and further condenses the mercury in tail gas, and demister (7) is for going
Except the drop or water mist in residual exhaust, technique water treatment unit (12) the connection chilling scrubbing tower (3), stuffing washing tower
(5) and condenser coil (6), the technique waste water that three devices generate is collected, is disposed, and water up to standard will be handled and be back to urgency
Cold scrubbing tower (3) and stuffing washing tower (5).
5. the system according to claim 4 for being used for mercurous solid waste and soil thermal desorption vent gas treatment, which is characterized in that institute
Sulfur loading active carbon adsorption tanks (9) are stated by tank body, sulfur loading active carbon adsorption tanks air inlet (23), sulfur loading active carbon (24) and carry sulphur work
Property charcoal adsorption tanks gas outlet (25) form, tank body is connected in series with, and sulfur loading active carbon (24), the upper end of initial tank body are equipped in tank body
Equipped with sulfur loading active carbon adsorption tanks air inlet (23), the upper end of end tank body is equipped with sulfur loading active carbon adsorption tanks gas outlet (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810791131.4A CN108744829A (en) | 2018-07-18 | 2018-07-18 | It is a kind of to desorb exhaust treatment system for the indirect thermal of mercurous solid waste and soil treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810791131.4A CN108744829A (en) | 2018-07-18 | 2018-07-18 | It is a kind of to desorb exhaust treatment system for the indirect thermal of mercurous solid waste and soil treatment |
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| CN117379909A (en) * | 2023-07-20 | 2024-01-12 | 通亚汽车制造有限公司 | Portable environmental protection emergency tank |
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