CN208642183U - 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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- CN208642183U CN208642183U CN201821139571.3U CN201821139571U CN208642183U CN 208642183 U CN208642183 U CN 208642183U CN 201821139571 U CN201821139571 U CN 201821139571U CN 208642183 U CN208642183 U CN 208642183U
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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 is desorbed for the indirect thermal of mercurous solid waste and soil treatment the utility model relates to a kind of, is belonged to
Thermal desorption exhaust treatment system technical field.
Background technique
Be pyrolyzed adsorption technology because its short processing time, 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, makes to adsorb
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 treatment, 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 is that 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 be using active carbon as base charcoal, being 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 the method are as follows treated
Tail gas is difficult qualified discharge, and active carbon replacement is very frequent, and the waste heat in thermal desorption tail gas is difficult to utilize again, causes energy
Source waste.Second is that absorption process, mercuryvapour can be switched to mercury oxide rapidly by common potassium permanganate or liquor natrii hypochloritis, potassium permanganate
Mercuryvapour can be switched to mercury ion rapidly and generate chlorine mercury complex ion with chloride ion by precipitating, sodium hypochlorite.The purification of this method is imitated
Rate is higher, but all there are problems that selfdecomposition and the secondary treatment of mercury.Third is that air setting+active carbon adsorption, condenser (air
Condensation) be used as first class purification equipment, active carbon adsorber is then used as secondary purification equipment, by first condense afterwards the second level adsorbed it is net
After change, the mercurous concentration of tail gas reaches national emission standard.
Utility model content
Purpose of the utility model is to solve the above-mentioned problems of the prior art, and then provide a kind of for mercurous
The indirect thermal of solid waste and soil treatment desorbs exhaust treatment system.
The purpose of this utility model is 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 utility model has the advantage that
(1) high-temperature dust removal technology, tail gas condensing technology and active carbon adsorption technology is used in combination to mercurous in the utility model
High-temperature tail gas is handled, it is made to be fully purified, and reaches national relevant emission standards.
(2) the utility model uses high-temperature dust removal technology, and efficiency of dust collection is 95~99.9%, can substantially reduce technique waste water
Middle SS content, reduces process water processing difficulty.
(3) the utility model can Fast Installation and disassembly, facilitate transfer transport, meet equipment fast transfer, continuous use
Demand.
(4) technique waste water generated in chilling scrubbing tower and stuffing washing tower in the utility model can be returned all after processing
It economizes on resources for this unit without outlet.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the utility model 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.
Appended drawing reference 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
Blower, 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 active carbon, 25 be sulfur loading active carbon adsorption tanks gas outlet.
Specific embodiment
Be described in further detail below in conjunction with attached drawing to the utility model: the present embodiment is with the utility model skill
Implemented under premised on art scheme, give detailed embodiment, but the protection scope of the utility model be not limited to it is following
Embodiment.
As shown in FIG. 1 to 3, a kind of involved in the present embodiment to be desorbed for the indirect thermal of mercurous solid waste and soil treatment
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, the lower part of chilling scrubbing tower 3 and stuffing washing tower 5
Venturi scrubber 4 is connected between lower part, refrigeration unit 8 is connect with condenser coil 6, and 6 end of condenser coil connects demister
7, the outlet of demister 7 is connected with the entrance of sulfur loading active carbon adsorption tanks 9, the outlet of sulfur loading active carbon adsorption tanks 9 and air inducing
The air inlet of machine 10 is connected, and the air outlet of air-introduced machine 10 is connected with chimney 11, chilling scrubbing tower 3, stuffing washing tower 5 and cold
The outlet of solidifying coil pipe 6 is 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 is connected with the spray equipment inside stuffing washing tower 5.
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
Interior to import clean gas collecting chamber along axial, 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 set
It sets inside refractory ceramics film dust-remover 16, pyrolysis rotary kiln discharge port 13, which is arranged in refractory ceramics film dust-remover 16, to be gone out
The top of feed bin 14；21, No. 1 cylinder 20 of No. 1 cylinder 20 and No. 2 cylinder is equipped at the top of the refractory ceramics film dust-remover 16 to use
In control 18, No. 2 cylinders 21 of No. 1 outlet valve for controlling 19, No. 1 outlet valve of No. 2 outlet valves as normally open.Into one
Step, 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, to increase mercurous tail gas and solution contact surface product, guarantee 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, condenser coil 6
Pyrolysis gas temperature is further decreased under the action of refrigeration unit 8, and further condenses the mercury in tail gas, demister 7 is used for
Remove the drop or water mist in residual exhaust.The technique water treatment unit 12 connect chilling scrubbing tower 3, stuffing washing tower 5 and
The technique waste water that three devices generate is collected, disposes by condenser coil 6, and will handle water up to standard and be back to chilling washing
Tower 3 and 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 sufficiently 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, 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, through detecting, 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 preferable specific embodiment of the above, only the utility model, these specific embodiments are all based on this
Different implementations under utility model general idea, and the protection scope of the utility model is not limited thereto, it is any ripe
Know those skilled in the art within the technical scope disclosed by the utility model, any changes or substitutions that can be easily thought of, all
It should cover and be within the protection scope of the utility model.Therefore, the protection scope of the utility model should be with claims
Subject to protection scope.
Claims (5)
1. a kind of desorb 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), under chilling scrubbing tower (3)
It is connected between portion and the lower part of stuffing washing tower (5) Venturi scrubber (4), refrigeration unit (8) and condenser coil (6) are even
It connects, condenser coil (6) end connects demister (7), the outlet and the entrance phase of sulfur loading active carbon adsorption tanks (9) of demister (7)
Connection, the outlet of sulfur loading active carbon adsorption tanks (9) is connected with the air inlet of air-introduced machine (10), the air outlet of air-introduced machine (10) and
Chimney (11) is connected, the water outlet of chilling scrubbing tower (3), stuffing washing tower (5) and condenser coil (6) with technique water process
The water inlet of unit (12) is connected, the water outlet of technique water treatment unit (12) with chilling scrubbing tower (3) and padding washing
The internal spray equipment of tower (5) 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
Heat filter (2) are stated as discharging and dust removal integrated plant, include discharging bin (14), discharging double-layer flap valve (15), high temperature resistant
Ceramic film dust-remover (16) three parts, the lower end of the refractory ceramics film dust-remover (16) are 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) are 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 for controlling No. 2 outlet valves (19), and No. 1 outlet valve is normally open, and No. 2 outlet valves are normal
Closed state.
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
Stating chilling scrubbing tower (3) is atomizing spray tower structure, 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), to increase mercurous tail gas and solution contact surface product, guarantee the abundant elution to mercurous tail gas, and
Make the reduction of pyrolysis gas temperature；Condenser coil (6) 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, the technique water treatment unit (12) connects 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
It is living by tank body, sulfur loading active carbon adsorption tanks air inlet (23), sulfur loading active carbon (24) and load sulphur to state sulfur loading active carbon adsorption tanks (9)
Property charcoal adsorption tanks gas outlet (25) form, tank body is connected in series, and is equipped with sulfur loading active carbon (24) in tank body, the upper end of initial 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).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821139571.3U CN208642183U (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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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821139571.3U CN208642183U (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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| CN208642183U true CN208642183U (en) | 2019-03-26 |
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| CN201821139571.3U Active CN208642183U (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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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108744829A (en) * | 2018-07-18 | 2018-11-06 | 北京建工环境修复股份有限公司 | It is a kind of to desorb exhaust treatment system for the indirect thermal of mercurous solid waste and soil treatment |
| CN109909289A (en) * | 2019-03-27 | 2019-06-21 | 徐州工程学院 | The agricultural land soil processing unit of mercury concentration in a kind of reduction rice |
-
2018
- 2018-07-18 CN CN201821139571.3U patent/CN208642183U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108744829A (en) * | 2018-07-18 | 2018-11-06 | 北京建工环境修复股份有限公司 | It is a kind of to desorb exhaust treatment system for the indirect thermal of mercurous solid waste and soil treatment |
| CN109909289A (en) * | 2019-03-27 | 2019-06-21 | 徐州工程学院 | The agricultural land soil processing unit of mercury concentration in a kind of reduction rice |
| CN109909289B (en) * | 2019-03-27 | 2020-12-18 | 徐州工程学院 | Farmland soil treatment device for reducing mercury concentration in rice |
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