CN109809671A - A kind of sludge treating system and method - Google Patents
A kind of sludge treating system and method Download PDFInfo
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- CN109809671A CN109809671A CN201910160530.5A CN201910160530A CN109809671A CN 109809671 A CN109809671 A CN 109809671A CN 201910160530 A CN201910160530 A CN 201910160530A CN 109809671 A CN109809671 A CN 109809671A
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Abstract
The present invention relates to energy environment protection technical field, disclosing a kind of sludge treating system and method, the system includes: supersonic speed shock wave desiccation apparatus, thermal cracker and oxidation incinerator；Supersonic speed shock wave desiccation apparatus includes: feed inlet, hot fluid inlet and shock wave nozzle；Shock wave nozzle sprays supersonic speed and shakes shock wave, and high speed hot fluid, the jet path intersection of the extending direction of feed inlet and the shock wave nozzle, so that material forms dry slag under the impact of high speed hot fluid are formed with the hot fluid entered by hot fluid inlet；The dry slag inlet communication of dry the slag outlet and thermal cracker of supersonic speed shock wave desiccation apparatus, the dry slag outlet of thermal cracker and the dry slag inlet communication of oxidation incinerator.A kind of sludge treating system provided by the invention and method, can be realized the integrated treatment of industrial hazardous waste sludge, municipal sludge, oily sludge etc., thoroughly solve solid dangerous waste.
Description
Technical field
The present invention relates to energy environment protection technical fields, more particularly to a kind of sludge treating system and method.
Background technique
Traditional municipal sludge, house refuse aoxidize power generation by waste combustion, are the sides of being effectively treated currently generallyd use both at home and abroad
Method.But due to the drying process of municipal sludge, fresh and alive rubbish it is not up to standard (it is normal burn when, rubbish, sludge moisture content should be less than
20%), cause power generation by waste combustion high energy consumption and pollution exhaust gas, discharging of waste liquid, sludge, rubbish waste liquor contamination environment there are the problem of
It is long-standing.Its main contributor is the desiccation poor quality due to city water-containing sludge, house refuse, when oxidation is burned, and is led
The result of cause.When wet mud, the burning disposal of fresh and alive rubbish, it is desirable that when the moisture content of material is less than 20%, aoxidize at burning
In optimum state.And sludge, the garbage combustion device of domestic current, it is most of to look forward to due to technological means or desiccation cost reason
Material water ratio when industry aoxidizes burning disposal municipal sludge, house refuse, oil-containing hazardous waste sludge is much higher than 20%.
Domestic majority removes house refuse, the partial moisture of municipal sludge, but this kind of side using natural gravity permeating method
Formula, which is difficult to, makes the moisture content of material moisture reach the criterion of acceptability for meeting oxidation burning.Therefore to aqueous fresh and alive rubbish, city
When political affairs sludge, danger solid waste carry out burning disposal, spontaneous combustion is unable to since the moisture content of material is exceeded, it is therefore desirable to which addition is a large amount of
Fuel energy participation is combustion-supporting, substantially increases the operation cost of power generation by waste combustion project.For in reduction municipal sludge, fresh and alive rubbish
Moisture content, with reach standard burn moisture content, traditional treatment process be in advance to sludge, fresh and alive rubbish etc. carry out desiccation
Processing, traditional desiccation treatment process generally use electro-osmosis, MDS dewaterer, KDS dewaterer, blades type drying machine, rotary kiln type
The desiccation apparatus such as hot wind desiccation machine are carried out dehydrating, however, such device needs to consume a large amount of heat source energy consumption, material desiccation
Shi Suoxu energy consumption cost occupies the high capital for burning enviromental protection enterprise, it is difficult to guarantee municipal sludge, fresh and alive rubbish, industry danger
The pretreatment quality of waste sludge etc..
Summary of the invention
(1) technical problems to be solved
The purpose of the present invention is to solve municipal sludge in the prior art, fresh and alive rubbish drying and other treatment low efficiency, contain
Water rate technical problem not up to standard.
(2) technical solution
For the technical problems in the prior art, in a first aspect, the present invention provides a kind of sludge treating system, packet
It includes: supersonic speed shock wave desiccation apparatus, thermal cracker and oxidation incinerator；The supersonic speed shock wave desiccation apparatus include: into
Material mouth, hot fluid inlet and shock wave nozzle；Shock wave nozzle injection supersonic speed shakes shock wave, and is entered by hot fluid inlet
Hot fluid forms high speed hot fluid, the jet path intersection of the extending direction of the feed inlet and the shock wave nozzle, so that object
Material forms dry slag under the impact of the high speed hot fluid；The outlet of dry slag and the hot tearing of the supersonic speed shock wave desiccation apparatus
The dry slag inlet communication of device is solved, the dry slag outlet of the thermal cracker and the dry slag import of the oxidation incinerator connect
It is logical.
Second aspect, the present invention provide a kind of method for sludge treatment, based on sludge treating system described above, the side
Method includes:
Step S1: wet mud raw material is entered by the feed inlet of supersonic speed shock wave desiccation apparatus, is sprayed by hot fluid and shock wave
The high speed hot fluid of the supersonic speed concussion Shock wave of mouth injection carries out shock wave desiccation, obtains dry slag and moist steam；
Step S2: dry slag exports discharge by the dry slag of supersonic speed shock wave desiccation apparatus, high into carrying out in thermal cracker
Anneal crack solution removes in dry slag containing oil distillate；
Step S3: the dry slag after Pintsch process is discharged into oxidation by the dry slag outlet of the thermal cracker and burns
High-temperature oxydation burning is carried out in device, is removed the organic substance in dry slag and is formed clinker discharge.
(3) beneficial effect
A kind of sludge treating system provided by the invention and method pass sequentially through supersonic speed shock wave drying process, thermal cracking
Technique, high-temperature oxydation burning process can fast implement the desiccation, oil removing and the organic nuisance of removing of sludge, house refuse etc.
Matter realizes the integrated treatment of industrial hazardous waste sludge, municipal sludge, oily sludge etc., thoroughly solves solid dangerous waste, realizes dirty
Useless nuisanceless purification, and the simple and direct reliable, economical and energy saving of equipment；It is shaken in supersonic speed shock wave drying process using supersonic speed simultaneously
The high speed hot fluid of Shock wave carries out shock wave drying and other treatment to sludge, house refuse etc., can quickly and efficiently realize desiccation
Dehydration, moisture content can be down to 25% or less.
Detailed description of the invention
Fig. 1 is the flow diagram of one embodiment of sludge treating system of the present invention；
Fig. 2 is the structural schematic diagram of one embodiment of supersonic speed shock wave desiccation apparatus of the present invention.
Wherein:
101- supersonic speed shock wave desiccation apparatus；102- thermal cracker；103- aoxidizes incinerator；104- condensing unit；
105- oil water separator；106- cyclone separator；107- deduster；108- three phase separator；111- shock wave device；112- is steady
Flow device；The feed inlet of 101a- supersonic speed shock wave desiccation apparatus；The hot fluid inlet of 101b- supersonic speed shock wave desiccation apparatus；
101c- shock wave nozzle；The dry slag of 101d- supersonic speed shock wave desiccation apparatus exports；The flue gas of 101e- supersonic speed shock wave desiccation apparatus
Outlet.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Following instance
For illustrating the present invention, but it is not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Fig. 1 gives the flow diagram of one embodiment of sludge treating system of the present invention.As shown in Figure 1, the Treatment of Sludge
System includes: supersonic speed shock wave desiccation apparatus 101, thermal cracker 102 and oxidation incinerator 103；Supersonic speed shock wave desiccation
Device 101 includes: feed inlet 101a, hot fluid inlet 101b and shock wave nozzle 101c；Shock wave nozzle 101c sprays supersonic speed shake
Shock wave is swung, forms high speed hot fluid, the extending direction of feed inlet 101a and institute with the hot fluid entered by hot fluid inlet 101b
The jet path intersection for stating shock wave nozzle 101c, so that material forms dry slag under the impact of high speed hot fluid；Supersonic speed shock wave
Desiccation apparatus dry slag outlet 101d and thermal cracker 102 dry slag inlet communication, thermal cracker 102 dry slag outlet and
Aoxidize the dry slag inlet communication of incinerator 103.
Specifically, in the present embodiment, it is dirty that sludge treating system can be suitable for municipal sludge, fresh and alive rubbish, industrial dangerous waste
The nuisanceless purified treatment of mud etc., the material include but is not limited to wet mud, house refuse or industrial solid wastes, are being located
Reason house refuse or whens industrial solid wastes need by grinding device (grinding device using this field it is common carry out life rubbish
The pulverizer of the pulverization process such as rubbish, Industrial Solid Waste) it carries out tearing up pretreatment and forms argillization rubbish, argillization rubbish, municipal sludge, work
Industry dangerous waste etc., which is mixed to form wet mud and passes through batcher together and be delivered in the desiccation of supersonic speed shock wave, carries out shock wave drying and other treatment.Its
In, it is 50-80%, dry base heat value in the wet of 3000Kcal or more that the sludge treating system of the present embodiment, which is particularly suitable for moisture content,
The desiccation of sludge, purified treatment.
Wherein, supersonic speed shock wave desiccation apparatus 101 mainly carries out shock wave drying and other treatment to wet mud.Fig. 2 gives this hair
The structural schematic diagram of bright one embodiment of supersonic speed shock wave desiccation apparatus, as shown in Fig. 2, the shock wave desiccation apparatus includes: shell, it should
The desiccation chamber that shell has feed inlet 101a, hot fluid inlet 101b and is connected to feed inlet 101a, hot fluid inlet 101b
Room, desiccation chamber is interior to be equipped with shock wave nozzle 101c.
Shock wave nozzle 101c hangs down for spraying supersonic speed concussion shock wave, the feedstock direction of injection direction and feed inlet 101a
Directly；Hot fluid inlet 101b shakes Shock wave close to feed inlet, by the hot fluid inlet 101b hot fluid entered and supersonic speed
High speed hot fluid, wet mud raw material are entered in desiccation chamber by feed inlet 101a, are fallen by the weight of itself, are dropped down onto shock wave
Impact after on the jet path of nozzle 101c by high speed hot fluid forms dry slag and moist steam, and dry slag is done by supersonic speed shock wave
Disguise the dry slag outlet 101d discharge set, moist steam is discharged by the exhanst gas outlet 101e of supersonic speed shock wave desiccation apparatus.
It should be noted that the supersonic speed in shock wave nozzle 101c shakes shock wave shock wave device as known to this field
111 provide, and using aerodynamics, fluid is accelerated, and generate supersonic speed and shake shock wave.Shock wave device 111 can pass through current stabilization
Device 112 is connect with shock wave nozzle 101c, and shock wave device 111 generates supersonic speed concussion shock wave and is transmitted to by flow straightener 112
Shock wave nozzle 101c.
The working principle of supersonic speed shock wave desiccation apparatus 101 is as follows: supersonic speed is shaken shock wave and is sprayed by shock wave nozzle 101c,
It is high after fluid velocity, which reaches supersonic speed, forms sound barrier effect by sludge crushing at tiny particle with wet mud head-on crash
Sludge is thoroughly crushed by effect ground, and broken mud granule heat exchange area greatly improves, and improves between sludge and hot fluid
Heat transfer efficiency, so make to adsorb in sludge or comprising moisture instant vaporization (hot fluid temperature is rapidly reduced in 1 second
200 DEG C or less), to generate dry slag and moist steam, realize the purpose of sludge drying, the shock wave desiccation apparatus drying and other treatment is fast
It is fast, efficient, it can be realized quick desiccation dehydration, moisture content can be down to 25% or less.
Dry slag by the dry slag outlet 101d discharge of supersonic speed shock wave desiccation apparatus enters in thermal cracker 102, into
Row Pintsch process, oil and moisture in dry slag can be removed by further evaporation, and moisture content further decreases in dry slag, can control
System is cracked at different temperatures, to remove the fraction of different boiling, fraction is arranged by the fraction outlets of thermal cracker 102
Out.
Dry slag in thermal cracker 102 after Pintsch process removes grease is exported by the dry slag of thermal cracker 102
Discharge, and the dry slag import by aoxidizing incinerator 103 enters progress high-temperature oxydation burning in oxidation incinerator 103, into
The Organic Hazardous Compounds in dry slag are removed to one step, Organic Hazardous Compounds form hot fume, and dry slag burns to form carbon residue, can be recycled
Utilize heat.
A kind of sludge treating system provided by the invention passes sequentially through supersonic speed shock wave desiccation apparatus 101, thermal cracker
102, high-temperature oxydation incinerator 103 can fast implement the desiccation, oil removing and the organic nocuousness of removing of sludge, house refuse etc.
Substance realizes the integrated treatment of industrial hazardous waste sludge, municipal sludge, oily sludge etc., thoroughly solves solid dangerous waste, realizes
The useless nuisanceless purification of dirt, and the simple and direct reliable, economical and energy saving of equipment.
On the basis of the above embodiments, in the present embodiment, oxidation incinerator 103 hot fume outlet respectively with Supersonic
The air inlet connection of the hot fluid inlet 101b, thermal cracking of fast shock wave desiccation apparatus.The hot cigarette generated in oxidation incinerator 103
Gas heat with higher can be used as hot fluid and enter in supersonic speed shock wave desiccation apparatus 101 from hot fluid inlet, utilize its height
Warm amount combination supersonic speed shakes Shock wave high speed hot fluid, carries out shock wave drying and other treatment to raw materials such as wet muds, realizes energy
The recycling and reusing in source, energy saving reduce environmental pollution.
On the basis of the various embodiments described above, in the present embodiment, the system further include: three phase separator 108 and grease point
From device 105；The import of the three phase separator 108 is connected to the fraction outlets of the thermal cracker 102, the water-oil separating
Device 105 is connected to the liquid outlet of the three phase separator 108.
It carries out containing solid residue, oil and moisture in the fraction of high temperature pyrolysis generation in thermal cracker 102, into three
It is separated after phase separator 108 and forms solid residue and grease, grease enters back into oil water separator 105 and is separated into oil and water
Point, to realize three phase separation, can individually be recycled.
On the basis of the various embodiments described above, in the present embodiment, the system further include: condensing unit 104 and circulating water pool；
Condensing unit 104 is arranged on the pipeline of the fraction outlets of thermal cracker 102 and the inlet communication of three phase separator 108；It follows
The water inlet in ring pond is connected to the water outlet of oil water separator 105, the water outlet of circulating water pool and the circulation of condensing unit 104
Water inlet connection.
Condensing unit 104 is for cooling down the fraction being discharged in thermal cracker 102, in order to subsequent separation work
The progress of skill.Wherein, condensing unit 104 can be used skilled person will appreciate that by recirculated water carry out pipeline and equipment it is cold
But condenser.By setting circulating water pool, the water outlet of oil water separator 105 is connected to the circulating water intake of condenser,
Moisture isolated in sludge treating system, energy saving and water resource can be made full use of, production cost is reduced.
On the basis of the various embodiments described above, in the present embodiment, the system further include: cyclone separator 106 and deduster
107；The exhanst gas outlet 101e of supersonic speed shock wave desiccation apparatus is successively connected to cyclone separator 106 and deduster 107, i.e. flue gas
Export the inlet communication of 101e and cyclone separator 106, the outlet of cyclone separator 106 and the inlet communication of deduster 107.It is super
The flue gas that the moist steam and other gas mixings generated after being impacted in velocity of sound shock wave desiccation apparatus by shock wave is formed is by exhanst gas outlet
101e discharge, sequentially enters cyclone separator 106, deduster 107, removes the impurity in moist steam, purifies after steam by dedusting
The exhanst gas outlet of device 107 is discharged, and realizes clean emission, reduces environmental pollution.
On the basis of the various embodiments described above, in the present embodiment, further includes: tail gas deacidifying device, the tail gas deacidifying device
Gas feed be connected to the exhanst gas outlet of the deduster.It is discharged after cyclone separator 106 and deduster 107 clean
Tail gas carries out depickling processing by tail gas deacidifying device, removes the acidic materials that environmental pollution is caused in tail gas.
On the basis of the various embodiments described above, in the present embodiment, further includes: activated carbon adsorption device, the activated carbon adsorption
The import of device is connected to the gas vent of tail gas deacidifying device.Tail gas is after depickling is handled, by activated carbon adsorption device
Carry out secondary removal of impurities, further cleaning of off-gas.
It should be noted that " tail gas deacidifying device " described above, " activated carbon adsorption device " are that this field is common
Depickling processing equipment and active carbon adsorption equipment.
The present invention also provides a kind of method for sludge treatment, this method is the dirt implemented based on above-mentioned sludge treating system
Mud processing method, this method comprises:
Step S1: wet mud raw material is entered by the feed inlet 101a of supersonic speed shock wave desiccation apparatus, by hot fluid and is swashed
The high speed hot fluid of the supersonic speed concussion Shock wave of wave nozzle 101c injection carries out shock wave desiccation, obtains dry slag and moist steam；
101 operating temperature of supersonic speed shock wave desiccation apparatus is preferably 300-350 DEG C, i.e., the temperature of the high speed hot fluid formed in it is
300-350℃.Shock wave drying process can quickly and efficiently realize that desiccation is dehydrated, and moisture content can be down to 25% or less.
Step S2: dry slag is discharged by the dry slag outlet 101d of supersonic speed shock wave desiccation apparatus, into thermal cracker 102
Pintsch process is carried out, is removed in dry slag containing oil distillate；Wherein, cracking temperature is preferably 600-650 DEG C, at a temperature of this, in dry slag
Fraction of the boiling point within 600 DEG C can be discharged by gasification, and residual components are carbon residue and inorganic matter, be mixed to form breeze.
Step S3: the dry slag after Pintsch process is discharged into oxidation by the dry slag outlet of the thermal cracker 102
High-temperature oxydation burning is carried out in incinerator 103, is removed the organic substance in dry slag and is formed clinker discharge.
In burning process, Organic Hazardous Compounds formation hot fume, dry slag incineration oxidation, recoverable heat, most throughout one's life
At vitrification clinker.Reciprocating fire grate incinerator can be used in oxidation incinerator 103, is able to carry out reciprocating high-temperature oxydation, thoroughly
Remove the Organic Hazardous Compounds in dry slag.High-temperature oxydation temperature is preferably 800 DEG C or more, avoids generating the nuisances such as dioxin
Matter.After high temperature oxidation process, content of organics is lower than one thousandth in the vitrification clinker of discharge, can be reduced directly in soil
Earth improves ecological environment of soil.
Further, step S3 further include: after high-temperature oxydation burning, burn the hot fume of generation by oxidation incinerator
103 hot fume exports discharge, respectively enters progress energy in supersonic speed shock wave desiccation apparatus 101 and thermal cracker 102 and follows
Ring utilizes, and realizes the recycling and reusing of the energy, and energy saving reduces environmental pollution.
Further, step S1 further include: contain moist steam by what the exhanst gas outlet of supersonic speed shock wave desiccation apparatus was discharged
Flue gas sequentially enter in cyclone separator 106 and deduster 107, remove impurity in flue gas, purify the steam of discharge, realize clean
Net discharge, reduces environmental pollution.
Further, step S2 further comprises: sequentially entering three phase separator 108 and oil water separator containing oil distillate
In 105, isolated solid residue, oil product and moisture are carried out, the oil product isolated is sent to oil storage tank recycling, isolates
Water enters settling tank, or is accumulated in circulating water pool to be sent in condensing unit 104 and recycle, be three phase separator 108 into
Row cooling.
A kind of sludge treating system provided by the invention and method pass sequentially through supersonic speed shock wave drying process, thermal cracking
Technique, high-temperature oxydation burning process can fast implement the desiccation, oil removing and the organic nuisance of removing of sludge, house refuse etc.
Matter realizes the integrated treatment of industrial hazardous waste sludge, municipal sludge, oily sludge etc., thoroughly solves solid dangerous waste, realizes dirty
Useless nuisanceless purification, and the simple and direct reliable, economical and energy saving of equipment；It is shaken in supersonic speed shock wave drying process using supersonic speed simultaneously
The high speed hot fluid of Shock wave carries out shock wave drying and other treatment to sludge, house refuse etc., can quickly and efficiently realize desiccation
Dehydration, moisture content can be down to 25% or less.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of sludge treating system characterized by comprising supersonic speed shock wave desiccation apparatus, thermal cracker and oxidation are burnt
Burn device；
The supersonic speed shock wave desiccation apparatus includes: feed inlet, hot fluid inlet and shock wave nozzle；
The shock wave nozzle injection supersonic speed shakes shock wave, forms high speed hot fluid with the hot fluid entered by hot fluid inlet,
The jet path of the extending direction of the feed inlet and shock wave nozzle intersection, so that material rushing in the high speed hot fluid
Hit the lower dry slag of formation；
The dry slag inlet communication of dry the slag outlet and the thermal cracker of the supersonic speed shock wave desiccation apparatus, the thermal cracking
The dry slag inlet communication of the dry slag outlet of device and the oxidation incinerator.
2. sludge treating system according to claim 1, which is characterized in that the hot fume outlet of the oxidation incinerator
It is connected to respectively with the air inlet of the hot fluid inlet of the supersonic speed shock wave desiccation apparatus, the thermal cracker.
3. sludge treating system according to claim 1, which is characterized in that further include: three phase separator and water-oil separating
Device；The import of the three phase separator is connected to the fraction outlets of the thermal cracker, the oil water separator and described three
The liquid outlet of phase separator is connected to.
4. sludge treating system according to claim 3, which is characterized in that further include: condensing unit and circulating water pool；Institute
Condensing unit is stated to be arranged on the pipeline of the fraction outlets of the thermal cracker and the inlet communication of the three phase separator；Institute
The water inlet for stating circulating water pool is connected to the water outlet of the oil water separator, the water outlet of the circulating water pool and the condensation
The circulating water intake of device is connected to.
5. sludge treating system according to claim 1, which is characterized in that further include: cyclone separator and deduster；Institute
Supersonic speed shock wave desiccation apparatus is stated with exhanst gas outlet, the exhanst gas outlet is successively connected to cyclone separator, deduster.
6. a kind of method for sludge treatment based on the described in any item sludge treating systems of claim 1-5, which is characterized in that institute
The method of stating includes:
Step S1: wet mud raw material is entered by the feed inlet of supersonic speed shock wave desiccation apparatus, is sprayed by hot fluid and shock wave nozzle
The high speed hot fluid for the supersonic speed concussion Shock wave penetrated carries out shock wave desiccation, obtains dry slag and moist steam；
Step S2: dry slag exports discharge by the dry slag of supersonic speed shock wave desiccation apparatus, into carrying out high anneal crack in thermal cracker
Solution removes in dry slag containing oil distillate；
Step S3: the dry slag after Pintsch process is discharged into oxidation incinerator by the dry slag outlet of the thermal cracker
Middle progress high-temperature oxydation burning removes the organic substance in dry slag and forms clinker discharge.
7. method for sludge treatment according to claim 6, which is characterized in that the step S3 further include: in high-temperature oxydation
After burning, the hot fume of generation is burned by the hot fume outlet discharge of oxidation incinerator, respectively enters the supersonic speed shock wave
Energy recycling is carried out in desiccation apparatus and the thermal cracker.
8. method for sludge treatment according to claim 6, which is characterized in that the step S1 further include: swashed by supersonic speed
The flue gas containing moist steam of the exhanst gas outlet discharge of wave desiccation apparatus sequentially enters in cyclone separator and deduster, removes cigarette
It is discharged after impurity in gas.
9. method for sludge treatment according to claim 6, which is characterized in that the step S2 further comprises: described to contain
Oil distillate sequentially enters in three phase separator and oil water separator, carries out isolated solid residue, oil product and moisture, isolates
Oil product be sent to oil storage tank recycling, the water isolated enters settling tank.
10. method for sludge treatment according to claim 6, which is characterized in that shape in the supersonic speed shock wave desiccation apparatus
At the temperature of high speed hot fluid be 300-350 DEG C, the cracking temperature of the thermal cracker is 600-650 DEG C, the oxidation
The incineration temperature of incinerator is 850-1200 DEG C.
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| CN110526547A (en) * | 2019-09-29 | 2019-12-03 | 程昊 | Shock wave sludge drying device and sludge drying system |
| CN111410980A (en) * | 2020-04-29 | 2020-07-14 | 湖南叶林环保科技有限公司 | Organic hazardous waste treatment system and method |
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| CN111410980A (en) * | 2020-04-29 | 2020-07-14 | 湖南叶林环保科技有限公司 | Organic hazardous waste treatment system and method |
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Application publication date: 20190528 |
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