CN206911924U - Process unit for abraum salt recycling - Google Patents
Process unit for abraum salt recycling Download PDFInfo
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- CN206911924U CN206911924U CN201720790614.3U CN201720790614U CN206911924U CN 206911924 U CN206911924 U CN 206911924U CN 201720790614 U CN201720790614 U CN 201720790614U CN 206911924 U CN206911924 U CN 206911924U
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Abstract
The utility model discloses a kind of process unit for abraum salt recycling, including abraum salt feeding system, abraum salt fusing system, exhaust treatment system, fused salt cooling granulation system；Primary structure includes abraum salt feeder, abraum salt distributing device, drying and preheating and the integrated molten salt furnace of fusing, belt cooling granulation machine, RTO stoves, filter, spark arrester, caustic wash tower etc..While the utility model realizes in abraum salt that organic matter thoroughly destroys processing by fire and reaches recycling standard, caused organic matter in abraum salt purification process is further handled using heat damage, avoids the secondary pollution discharge such as waste water, waste gas during abraum salt utilizes.The utility model use vertical molten salt furnace simultaneously, and abraum salt dry, preheating, melting process are realized in stove, reduces investment and the exhaust pollution problems of drying, mill etc. that unit is brought, overcomes equipment because salt bonding is difficult to continuous and steady operation problem.
Description
Technical field
The utility model belongs to solidification disposal of waste technical field in green technology, is related to a kind of technique for abraum salt recycling
Device, and in particular to a kind of organic matter for taking high-temperature melting method to remove in abraum salt reaches the device of abraum salt purification, applied to essence
The recycling of caused abraum salt in thin chemical process.
Background technology
Abraum salt is mainly derived from the field of fine chemical such as agricultural chemicals, pharmacy, printing and dyeing, and 2015, national chemical industry abraum salt produced
Raw about 3,000,000 tons of amount.Fine chemistry industry acid-base neutralization, saltout and caused high slat-containing wastewater concentration, meeting in the production technology such as fixation
Produce one or more salt such as sodium chloride-containing, sodium sulphate, sodium sulfite, sodium nitrate, potassium chloride, potassium sulfate, calcium chloride, magnesium chloride
And the mixture of organic matter, have various species, complicated component, poisonous and harmful substance content high.It is this to have containing largely poisonous
The typically qualitative abraum salt of evil organic matter is dangerous solid waste.
Abraum salt mainly handles method of disposal as security landfill, innoxious and recycling.Security landfill is due to taking a large amount of soil
Ground resource, corrosion etc. is caused to influence stabilisation and impervious barrier, most of dangerous waste landfill yards refusals are entrusted at present.Innoxious and money
Sourceization mainly has desalinization of soil by flooding or leaching method, advanced oxidation processes, Method of Soda processed and pyrolysismethod.Desalinization of soil by flooding or leaching method：Abraum salt is washed using saturated brine, will be useless
Organic material in salt is dissolved in cleaning solution, and organic components are single and soluble in water suitable for abraum salt, but caused
High-salt wastewater is difficult to handle, and obtained net salt is difficult to meet recycling requirement.Advanced oxidation processes：On the basis of saturated brine washing
On, such as sodium hypochlorite, hydrogen peroxide, ozone strong oxidizer are added, organic pollution is aoxidized and obtains the net salt of byproduct,
But because the property difference oxidation effectiveness difference of organic pollution is bigger, the method scope of application is small, and the oxidant content consumed
Greatly.Extraction：To there is engine dyeing thing to be extracted into extractant in abraum salt by extractant, reduce abraum salt in content of organics so as to
Net salt is obtained, organic matter can be by being stripped or steaming in extractant（Essence）Recycling is evaporated, but obtained net salt also contains one
Determine the organic matter of content, the organic matter of method high added value suitable for recovery abraum salt.Method of Soda processed：Saturated salt is made in abraum salt
The aqueous solution, it is passed through ammonia, carbon dioxide gas or is directly added into solid carbon ammonium, crystallization separates out solid sodium bicarbonate, pyrolytic system
Obtain soda ash.Containing ammonium chloride mother liquor freezing and crystallizing separates out ammonium chloride Posterior circle to alkaline process.The method reaction yield is not high, remaining
Organic impurity influence product quality.Pyrolysismethod：Use heat empty in the equipment such as swinging heating furnace, multi-layer discs pyrolysis furnace abraum salt
Gas directly or indirectly 600 ~ 800 DEG C of heating, under anoxic conditions, organic carbon, cracking or volatilization in abraum salt, it is useless to reach purification
The purpose of salt.The method is because heating and temperature control is below abraum salt fusion point, and abraum salt and hot blast time of contact are limited, cause to press from both sides
The miscellaneous high organic matter of boiling point between abraum salt crystal is difficult to all be pyrolyzed or evaporate, organic for being wrapped up in abraum salt crystal
Thing removal effect is just worse, and obtained net salt residual organic component content is difficult to control；The other method is under anoxic conditions, to give up
The carbonization of an organic matter part is stayed in salt after cleaning in salt, is largely to be entered by pyrolysis devolatilization in hot blast, it is impossible to realize
Ash or black is presented in the permineralization of organic matter, obtained net salt, it is difficult to reach recycling standard, it is necessary to dissolve, coagulation,
The further purified treatments such as filtering.The method is substantially the process as gaseous contaminant by solid contaminant transfer, while can also
Produce high slat-containing wastewater.In operation because temperature control is bad, table can occur the other method for equipment local area abraum salt
Thin-skinnedization, cause equipment to bond and be difficult to continuous and steady operation.
Utility model content
Purpose of utility model：For the deficiencies in the prior art, the purpose of this utility model is to provide a kind of use
In the process unit of abraum salt recycling, while thoroughly purification meets requirements of comprehensive utilization to realizing abraum salt, organic waste is realized
Gas heat damage is handled, and reduces the secondary pollution such as waste water, waste gas discharge during comprehensively utilizing.
Technical scheme：In order to realize above-mentioned purpose of utility model, the technical solution adopted in the utility model is：
A kind of process unit for abraum salt recycling：Including abraum salt feeding system, abraum salt fusing system, vent gas treatment system
System and net salt cooling granulation system；Described abraum salt feeding system includes abraum salt feed bin, adhesive tape feeder, and adhesive tape feeder is located at
Between abraum salt feed bin and distributing device；Described abraum salt fusing system includes distributing device, molten salt furnace, air and gas inlet, cloth
Glassware is located at the top of molten salt furnace, and air and gas inlet are located at molten salt furnace bottom；Described exhaust treatment system is included successively
Pneumatic filter, caustic wash tower, spark arrester, RTO stoves, caustic wash tower and the purification Gas chimney of series connection；Described net salt cooling granulation system
System includes fused salt filter, belt cooling granulation machine, net salt feed bin, and belt cooling granulation machine is located at fused salt filter and net salt material
Between storehouse, fused salt filter is connected with molten salt furnace；
The molten salt furnace is dry abraum salt, preheating and melting integrated furnace；Molten salt furnace is shaft furnace of the cross section for circle, is used
Steel plate makees furnace shell, and fireproof brick inner lining is built in shell, sets cooling water heat exchange facilities in refractory brick, and lower furnace is along stove Zhou Bushe natural gases
Mouth is sent into air, furnace bottom is provided with fuse salt from flow export；Body of heater is different with Temperature Distribution by processing abraum salt function, from top to down
It is divided into drying, preheating section, abraum salt melt zone, fuse salt drippage section, fuse salt collection section, abraum salt is in residing time in furnace 5-12S.
The drying of body of heater, preheating section temperature are 150 ~ 800 DEG C, abraum salt melt zone temperature is 800 ~ 1000 DEG C, fuse salt drop
Fall section temperature for 1000 ~ 1100 DEG C, fuse salt collection section temperature is 900 ~ 1000 DEG C.
The abraum salt distributing device is located at the top of molten salt furnace, using bell-less BF tep distributing mode, is divided into string tank as needed
With simultaneously tank bell-less BF tep structure, including by batch can, blow-off valve, material flow gate, central throat tube, distributing device, swivel chute.
The fuse salt cooling granulation machine includes buncher, one side drilling steel band, steel band back side sprinkling device for cooling water.
Feeding of the present utility model and cloth operating unit：Feed bin abraum salt is transported to bell-less BF tep distributing device by adhesive tape
Hopper, entered by discharge valve and weigh batch can, adjusted by doses, abraum salt is by plate cutting center of the weighing batch can along distributing device
Pipe enters the chute of rotation, and abraum salt is uniformly sprinkled into stove with the rotation of chute from fused salt furnace roof.The distributing device has cloth
Solid abraum salt is uniform, and because its peculiar sealing designs, can prevent molten salt furnace furnace gas from leaking, and reduces air-flow conveying needs
Unit and the drying such as first dry, mill, sieving, milling, the volatilization for the organic matter that abraum salt contains and stone roller in screening process
The secondary environmental pollution problem that mill screening dust is brought.
Abraum salt of the present utility model is dry, preheats and melts integrated molten salt furnace：Mainly include body of heater, furnace lining, air-supply（My god
Right gas and air）Pipe, cooling system etc..Molten salt furnace uses vertical heater, and body of heater is different with Temperature Distribution by processing abraum salt function, from
Furnace roof is divided into furnace bottom：Abraum salt is dry, preheating section（150~800℃）, abraum salt melt zone（800~1000℃）, fuse salt drop
Fall section（1000~1100℃）, fuse salt collection section（900~1000℃）.Abraum salt is uniformly sprinkled into molten salt furnace from furnace roof, and stove is low natural
Heat and abraum salt counter current contacting caused by gas burning, realize that the vaporization of moisture in abraum salt is dried, the preheating and melting of abraum salt, abraum salt
In residing time in furnace 5-12S, because abraum salt is heated to molten state and the residence time is longer, between abraum salt crystal and in crystal
The abundant mineralising of organic impurities, abraum salt are thoroughly purified.Furnace body temperature controls and the removal of heat uses water cooling mode, in order to
Anti- body of heater corrodes and destroyed, using different refractory linings.
Fuse salt cooling and granulation of the present utility model：Refer to the net salt of melting of furnace bottom outflow by filtering and cloth outside stove
Device, fuse salt is spread on the stainless steel band by buncher dragging, steel band can be drilled with different pore size by one side as needed
Drilling, due to the pressure cooling effect of steel band back side cooling water, the fuse salt spread on steel band is rapidly cooled, is frozen into
Shape, being shaped as net salt shaping is approximate hemispherical, by adjusting aperture, can be made into the approximate hemispherical net salt of different-grain diameter
Grain, is packed after collection.
Organic exhaust gas heat damage and purification of the present utility model：Abraum salt is dried during the decline of integrated molten salt furnace, is pre-
Hot low-temperature zone section have a small amount of organic exhaust gas it is imperfect combustion and be pyrolyzed come out, this part organic exhaust gas enters heat-accumulation type hot oxygen
Change stove（RTO stoves）Further destroyed at a temperature of 720-850 DEG C, the acidic materials that the waste gas of generation of burning contains are after alkali cleaning
Qualified discharge.
Beneficial effect：Compared with existing method, remarkable advantage of the present utility model includes：
1）The utility model takes the organic impurities that high-temperature melting method can not only be carried secretly between permineralization abraum salt crystal, by
Molten condition is heated in abraum salt, and the organic impurities in abraum salt crystal is also able to abundant mineralising, and obtained net purity salt is high, organic
Impurity is micro, it is not necessary to purifies again, can be with direct utilization；
2）The utility model uses vertical molten salt furnace, and abraum salt is dry, preheats, is melted in molten salt furnace during decline in fact
It is existing, it is not necessary to which that abraum salt in addition is dry, preheating facility, avoids because abraum salt is dry, organic exhaust gas caused by warm is collected and asked
Topic；In addition because being vertical heater, overcoming abraum salt partial melting in the equipment such as swinging heating furnace, multi-layer discs pyrolysis furnace causes
Equipment adhesion problem；
3）The utility model abraum salt is used without bell top distributor, and charging is uniform, reduces abraum salt because of air flow delivery mode
Required drying, the organic exhaust gas generation of mill processes and its process and collection link；
4）Due to easily being lumpd after abraum salt melting cooling, the utility model fuse salt can realize continuous coo1ing, be granulated, and root
According to needing to can be made into the net salt particle of different-grain diameter；
5）The utility model uses heat accumulation type thermal oxidation stove（RTO stoves）It is unburned to handle caused small part in fused salt process
Complete organic exhaust gas, avoid the secondary pollution problem of waste gas in abraum salt processing procedure.
Brief description of the drawings
Fig. 1 is the structural representation for the process unit of abraum salt recycling.
Embodiment
The utility model is further illustrated below by specific embodiment, it is noted that for the general of this area
For circulation method personnel, on the premise of the utility model principle is not departed from, some variations and modifications can also be made, these
It is considered as belonging to the scope of protection of the utility model.
For the special purpose device of the process unit of abraum salt recycling, as shown in figure 1, main structural components include net salt feed bin
1st, belt cooling granulation machine 2, fused salt filter 3, air and gas inlet 4, molten salt furnace 5, abraum salt feed bin 6, adhesive tape feeder
7th, distributing device 8, pneumatic filter 9, caustic wash tower 10, spark arrester 11, switching valve 12, RTO stoves 13, caustic wash tower 14 and purification Gas chimney
15, it is divided into abraum salt feeding system, abraum salt fusing system, exhaust treatment system, fused salt cooling granulation system.
Wherein, abraum salt feeding system includes abraum salt feed bin 6, adhesive tape feeder 7, and adhesive tape feeder 7 is located at the He of abraum salt feed bin 6
Between distributing device 8；Abraum salt fusing system includes distributing device 8, molten salt furnace 5, air and gas inlet 4, and distributing device 8 is located at fused salt
The top of stove 5 simultaneously connects with molten salt furnace 5, and air and gas inlet 4 are located at the bottom fuse salt outlet top of molten salt furnace 5 and molten salt furnace
5 connections；Exhaust treatment system includes pneumatic filter 9, caustic wash tower 10, spark arrester 11, switching valve 12, RTO stoves 13, caustic wash tower 14
With purification Gas chimney 15, pneumatic filter 9 connects with the gas vent of molten salt furnace 5, pneumatic filter 9, caustic wash tower 10, spark arrester
11st, RTO stoves 13, caustic wash tower 14, purification Gas chimney 15 are sequentially connected in series connection, in spark arrester 11 and RTO stoves 13, RTO stoves 13 and alkali
Wash on the connecting pipeline of tower 14 and be equipped with switching valve 12；Net salt cooling granulation system includes fused salt filter 3, belt cooling granulation
Machine 2, net salt feed bin 1, fused salt filter 3 and the fused salt outlet of molten salt furnace 5 are fused salt filter 3, belt cooling granulation machine 2, net
Salt feed bin 1 is sequentially connected in series connection.
Also need additionally to arrange air and natural gas supply air system, circulating water cooling system on abraum salt fusing system, be used for
Ventilation and cooling.Supply air system refers to natural gas and combustion-supporting gas air, and the heat needed for abraum salt melting uses clean energy resource day
Right gas burning produces, and air is using blower fan conveying, Gas Exploitation pipeline, air hose and natural gas tube along integrated fused salt
The fuse salt drippage section of stove is evenly arranged.Circulating water cooling system：Because molten salt furnace in-furnace temperature is higher, in order to reduce liner
Temperature, inner lining of furnace is protected, increases the service life, liner waste heat is removed using water cooling system.
In the special purpose device, molten salt furnace 5 is shaft furnace of the cross section for circle, makees furnace shell with steel plate, refractory brick is built in shell
Liner, heat exchange facilities are set in refractory brick.Body of heater is divided into dry, preheating section from top to down（150~800℃）, abraum salt melt zone（800
~1000℃）, fuse salt drippage section（1000~1100℃）, fuse salt collection section（900~1000℃）.Abraum salt by distributing device 8 from
Furnace roof is uniformly sprinkled into stove, natural gas and air is sent into from positioned at air port of the lower furnace along stove week, caused by combustion of natural gas
High-temperature flue gas realizes that the organic compound combustion in dry abraum salt, preheating and abraum salt destroys by fire in stove in uphill process, what furnace bottom was collected
Fuse salt exits into net salt cooling granulation system from fuse salt outlet.Caused combustion tail gas and drying, preheating section produce
Small part organic exhaust gas be discharged into exhaust treatment system from furnace roof exhaust outlet.Liner and in-furnace temperature exchange heat using in stove
Facility and stove outer circulation cooling water system control liner and in-furnace temperature.
In the special purpose device, distributing device 8 use bell-less BF tep distributing mode, be divided into as needed string tank and and tank without
Bell top construction, it is main include being sequentially connected in series by batch can, blow-off valve, material flow gate, central throat tube, distributing device,
Swivel chute, it is characterized in, for solid material, adjusting the practicable a variety of uniform distribution modes in swivel chute inclination angle.Abraum salt feed bin 6
In abraum salt by adhesive tape feeder 7 be transported in distributing device 8 by batch can, molten salt furnace 8 is uniformly added into by distributing device.
In net salt cooling granulation system, the fuse salt that molten salt furnace 5 comes out flows into fused salt filter 3, removes charcoal in fused salt
Ash and other impurities, the distributing device carried by belt cooling granulation machine 2, uniformly flow through the stainless steel band with one side drilling
On, regulation steel band back side cooling water flow and drilling size, the quick cooling of fused salt is realized, generates the net of different-grain diameter on demand
Salt enters net salt feed bin 1, is utilized after packaging as product resourceization.
In exhaust treatment system, the fused salt tail gas that molten salt furnace 5 comes out may also completely have containing small part is unburned
The sour gas generated in machine waste gas and combustion process, tail gas may also take small part salt grain out of, and tail gas first passes around gas
Filter 9, salt grain is removed, further to remove salt grain and sour gas corrosion follow-up equipment, after tail gas enters caustic wash tower 10,
Enter heat accumulation type thermal oxidation stove by spark arrester 11（RTO stoves）13 remove small part organic exhaust gas in tail gas.RTO stoves be Room 2 with
On, inside set ceramic body and carry out accumulation of heat and heat exchange, configure spark arrester 11 and caustic wash tower 10 is used as safety precautions, airintake direction is adjusted
Save as switching valve 12.Natural gas is used as auxiliary fuel, operation temperature is 720-850 DEG C, and organic matter destroys efficiency by fire more than 95%.
RTO outlet of stills tail gas further using caustic wash tower 14 remove its combustion process caused by sour gas, carried by caustic wash tower 14
Demister demisting after by air-introduced machine be discharged into air by purifying Gas chimney 15.
Following examples are based on above-mentioned process unit and carried out.
Embodiment 1
Abraum salt composition caused by certain agricultural chemicals, medicine intermediate manufacturing enterprise is NaCl 97%, water 1.74%, benzoic acid
0.23%th, the chloro- 5- carboxylic acid sodiums isothiazole 0.12% of 3,4- bis-, p-methyl benzenesulfonic acid 0.21%, ammonolysis thing 0.35%, toluene 0.35%.If
It is standby to be with technique primary operational technical parameter：Molten salt furnace control temperature be respectively：Drying, 200 DEG C of preheating section, 850 DEG C of melt zone,
1000 DEG C of section of fuse salt drippage, 900 DEG C of fuse salt collection section, abraum salt are 8S in residing time in furnace；Molten salt furnace offgas outlet gas
Temperature is 200 DEG C, and RTO stoves intake air temperature is 50 DEG C, and organic exhaust gas destroys room temperature by fire as 800 DEG C, goes out 100 DEG C of RTO furnace exhaust gas temperature,
It it is 40 DEG C by caustic wash tower after funnel exhaust emissions temperature.Net salt NaCl contents 100%, TOC after being purified by molten salt furnace（Always have
Machine carbon）Do not detect, ion film caustic soda NaCl quality requirements can be met, exhaust emissions meets《Atmosphere pollution comprehensive discharge
Standard》In table 2 secondary standard require limit value and《Dangerous waste incineration contamination control standard》（GB18484-2001）Polluted in table 3
The requirement of thing emission limit.
Embodiment 2
Abraum salt composition caused by certain pigment production enterprise is sodium sulphate 94.86%, 1,4- diamino-anthraquinones 1.74%, 1,4- bis-
Hydroxy-anthraquione 1.21%, organic other impurities 2.19%.Equipment and technique primary operational technical parameter are：Molten salt furnace control temperature point
It is not：Drying, 1050 DEG C of section of 250 DEG C of preheating section, 900 DEG C of melt zone, fuse salt drippage, 920 DEG C of fuse salt collection section, abraum salt exist
Residing time in furnace is 10S；Molten salt furnace offgas outlet temperature is 200 DEG C, and RTO stoves intake air temperature is 50 DEG C, and organic exhaust gas destroys by fire
Room temperature is 800 DEG C, goes out 100 DEG C of RTO furnace exhaust gas temperature, is 40 DEG C by caustic wash tower after funnel exhaust emissions temperature.By molten
Net salt sodium sulphate content 100%, TOC after the purification of salt stove（Total organic carbon）Do not detect, industrial anhydrous sodium sulfate can be met（GB/T
6009-2014）Quality requirement, exhaust emissions meet《Discharge standard of air pollutants》Secondary standard requires limit value in table 2
With《Dangerous waste incineration contamination control standard》（GB18484-2001）Pollutant emission limit requirement in table 3.
Claims (5)
- A kind of 1. process unit for abraum salt recycling, it is characterised in that：Including abraum salt feeding system, abraum salt fusing system, Exhaust treatment system and net salt cooling granulation system；Described abraum salt feeding system includes abraum salt feed bin, adhesive tape feeder, adhesive tape Feeder is located between abraum salt feed bin and distributing device；Described abraum salt fusing system includes distributing device, molten salt furnace, air and natural Gas entrance, distributing device are located at the top of molten salt furnace, and air and gas inlet are located at molten salt furnace bottom；Described exhaust treatment system Including pneumatic filter, caustic wash tower, spark arrester, RTO stoves, caustic wash tower and the purification Gas chimney being sequentially connected in series；Described net salt is cold But granulating system includes fused salt filter, belt cooling granulation machine, net salt feed bin, and belt cooling granulation machine is located at fused salt filter Between net salt feed bin, fused salt filter is connected with molten salt furnace.
- 2. the process unit according to claim 1 for abraum salt recycling, it is characterised in that：The molten salt furnace is abraum salt Dry, preheat and melt integrated furnace；Molten salt furnace is shaft furnace of the cross section for circle, makees furnace shell with steel plate, refractory brick is built in shell Liner, cooling water heat exchange facilities are set in refractory brick, lower furnace is sent into mouth along stove Zhou Bushe natural gases and air, and furnace bottom is provided with molten Melt salt from flow export；Body of heater is different by processing abraum salt function and Temperature Distribution, is divided into drying from top to down, preheating section, abraum salt melt Melt section, fuse salt drippage section, fuse salt collection section, abraum salt is in residing time in furnace 5-12S.
- 3. the process unit according to claim 1 for abraum salt recycling, it is characterised in that：The abraum salt distributing device position At the top of molten salt furnace, using bell-less BF tep distributing mode, it is divided into string tank and simultaneously tank bell-less BF tep structure as needed, including By batch can, blow-off valve, material flow gate, central throat tube, distributing device, swivel chute.
- 4. the process unit according to claim 1 for abraum salt recycling, it is characterised in that：The fuse salt cooling is made Grain machine includes buncher, one side drilling steel band, steel band back side sprinkling device for cooling water.
- 5. the process unit according to claim 1 for abraum salt recycling, it is characterised in that：Drying, the preheating of body of heater Duan Wendu is 150 ~ 800 DEG C, abraum salt melt zone temperature is 800 ~ 1000 DEG C, and fuse salt drippage section temperature is 1000 ~ 1100 DEG C, is melted Melt salt collection section temperature as 900 ~ 1000 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720790614.3U CN206911924U (en) | 2017-06-30 | 2017-06-30 | Process unit for abraum salt recycling |
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| CN201720790614.3U CN206911924U (en) | 2017-06-30 | 2017-06-30 | Process unit for abraum salt recycling |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107321755A (en) * | 2017-06-30 | 2017-11-07 | 江苏省环境科学研究院 | A kind of abraum salt process for reclaiming and its special purpose device |
| CN109485196A (en) * | 2018-12-28 | 2019-03-19 | 苏州聚阳环保科技股份有限公司 | Mobile comprehensive dangerous waste processing equipment |
| CN112404110A (en) * | 2020-11-30 | 2021-02-26 | 孙立凤 | Method and system for treating waste salt containing organic matters by adopting double-circulation thermal purification technology |
-
2017
- 2017-06-30 CN CN201720790614.3U patent/CN206911924U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107321755A (en) * | 2017-06-30 | 2017-11-07 | 江苏省环境科学研究院 | A kind of abraum salt process for reclaiming and its special purpose device |
| CN109485196A (en) * | 2018-12-28 | 2019-03-19 | 苏州聚阳环保科技股份有限公司 | Mobile comprehensive dangerous waste processing equipment |
| CN112404110A (en) * | 2020-11-30 | 2021-02-26 | 孙立凤 | Method and system for treating waste salt containing organic matters by adopting double-circulation thermal purification technology |
| CN112404110B (en) * | 2020-11-30 | 2023-07-14 | 北京航天晟永化工装备有限公司 | Method and system for treating waste salt containing organic matters by adopting double-circulation thermodynamic purification technology |
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