CN207880847U - Dangerous waste object burning and drying integrated processing system - Google Patents
Dangerous waste object burning and drying integrated processing system Download PDFInfo
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- CN207880847U CN207880847U CN201721448141.5U CN201721448141U CN207880847U CN 207880847 U CN207880847 U CN 207880847U CN 201721448141 U CN201721448141 U CN 201721448141U CN 207880847 U CN207880847 U CN 207880847U
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- sleeve
- chopping
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Abstract
The utility model is related to a kind of dangerous waste object burning and drying integrated processing systems, including hazardous waste pretreatment system, incineration system and anhydration system；The hazardous waste pretreatment system includes the pretreatment rinsing area, analysis and identification area and hazardous waste storage area being sequentially connected；The incineration system includes the incineration rotary kiln being sequentially connected, dual firing chamber, waste heat boiler, bag filter, scrubbing tower and chimney；The anhydration system includes that the clinker transition storage device being sequentially connected, water seal cool dust-extraction unit, slag remover, drying rotary kiln, shredding machine and dry cleansing device.Hazardous waste clinker after burning is carried out desiccation reprocessing by the utility model, and the clinker moisture content after desiccation reprocessing is low, and reuse ratio greatly improves, and greatlys save cost, while realizing the recycling of Boiler Steam, realizes cooperative disposal.
Description
Technical field
The utility model is related to castoff burning processing technology fields, more particularly to the burning and drying processing of danger wastes
System.
Background technology
With the development of industry, the hazardous waste of industrial processes discharge is increasing.It is estimated that the whole world is annual
Hazardous waste yield is 3.3 hundred million tons.It the serious pollution that is brought due to hazardous waste and potentially seriously affects, in industry prosperity
National Hazard waste has been known as " political waste ", and the public is very sensitive to hazardous waste problem, opposes in the area that oneself is lived
Dangerous waste disposal field is set up, in addition the disposal costs of hazardous waste are high, some companies strongly attempt to the undeveloped state of industry
Family and area transfer hazardous waste.
The existing harm of hazardous waste includes mainly the following：
(1) ecological environment is destroyed.Arbitrarily discharge, storage dangerous waste under the prolonged permeation, diffusion of rainwater underground water,
Meeting polluted-water and soil reduce the environmental functional grade in area.
(2) human health is influenced.Hazardous waste causes to poison by intake, sucking, skin absorb, eye contacts, or draws
The danger event such as combust, explosion；Long-term hazards include long-term poisoning, carcinogenic, teratogenesis, mutagens caused by repeating to contact etc..
(3) sustainable development is restricted.Hazardous waste does not handle or non-standardized treatment disposition caused air, water source, soil
The pollution of earth etc. will also become the bottleneck for restricting economic activity.
Currently, when handling hazardous waste, burning disposal is mainly carried out using incinerator and rotary kiln.Rotary kiln is danger
The main equipment of incineration of waste, it is lime-ash that the hazardous waste of charging, which can burn remainder, general 800 DEG C or so of in-furnace temperature,
Dangerous waste is fed and clinker discharging is continuous, rotary kiln turn in during, hazardous waste overturn advance in kiln, to rotary kiln
Tail portion, is advanced into dual firing chamber on gas, and clinker falls through into water seal, cooling and dedusting, by integral type slag remover be carried out come.Mesh
Preceding clinker is carried out by slag remover to be packed come after, according to national regulation need enter qualified hazardous waste landfill into
Row landfill, 3000 yuan/ton of expense.Obviously, the cost that landfill disposal is carried out by rotary kiln treated hazardous waste clinker occupies
Height, and traditional rotary kiln incineration processing, energy waste are also serious.
Utility model content
For the existing above problem of existing hazardous waste processing, the utility model provides that a kind of processing cost is low, resource
The high dangerous waste object burning and drying integrated processing system of utilization rate.
To solve the above-mentioned problems, the utility model uses following scheme：
A kind of dangerous waste object burning and drying integrated processing system, including hazardous waste pretreatment system, incineration system and dry
Change system；
The hazardous waste pretreatment system includes the pretreatment rinsing area, analysis and identification area and hazardous waste being sequentially connected
Storage area, the pretreatment flushing water outlet side of rinsing area, analysis and identification area experiment wastewater outlet side with the burning
System is connected, and the hazardous waste storage area is connected with incineration system；
The incineration system includes the incineration rotary kiln being sequentially connected, dual firing chamber, waste heat boiler, bag filter, washing
Tower and chimney, the flushing water outlet side of the pretreatment rinsing area, the experiment wastewater outlet side and hazardous waste in analysis and identification area
Storage area is connected with the feed end of the incineration rotary kiln；
The anhydration system includes that the clinker transition storage device being sequentially connected, water seal cool dust-extraction unit, slagging-off
Machine, drying rotary kiln and dry cleansing device, the slag output end of the incineration rotary kiln are connect with the clinker transition storage device,
The outlet port of the drying rotary kiln connects the dual firing chamber, the steam (vapor) outlet of the waste heat boiler and the smoke outlet of chimney
Connect the drying rotary kiln.
As a further improvement of the above technical scheme：
The roller helix transporting device and be wrapped in kiln body periphery that the drying rotary kiln includes kiln body, is installed in kiln body
Steam jacket, the steam jacket steam inlet connection waste heat boiler steam (vapor) outlet；The roller helix transporting device
Including be movably installed in the kiln body roller, be installed on the spiral conveying blade and chopper blade of the drum peripheral, institute
The both ends for stating roller are respectively provided with taper inlet and taper export end；The roller is hollow-core construction, the taper inlet
The steam feeding tube for being passed through drum cavity is installed, taper export end is equipped with the condensed water export for being passed through drum cavity
Pipe.
End is exported from taper inlet to taper, the vanepiston between spiral conveying blade on the roller gradually subtracts
It is small.
The inner cavity of the roller exports end from taper inlet to taper, and internal diameter is gradually reduced.
End is exported from taper inlet to taper, the periphery of the roller, which is followed successively by, imports sleeve, conveying sleeve, chopping set
Cylinder and export sleeve；The roller includes the chopping close to the transportation section of the taper inlet and close to taper export end
Section, between the transportation section and chopping section transition be connected with taper chopping guide section, all masks of taper chopping guide section
Have an importing blade, the circumferential surface of the chopping section has an outer chopping blade, the inner peripheral surface of the chopping sleeve have with it is described circumscribed
The interior chopping blade of broken blades fit.
The outer chopping blade is arranged in the circumferential surface of the chopping section in the shape of a spiral.
The periphery for importing sleeve, conveying sleeve, chopping sleeve and export sleeve is equipped with integrated casing, described outer
The both ends of shell will import sleeve and export sleeve closing, and the shell and the importings sleeve convey sleeve, shred sleeve and lead
Go out between sleeve and form the steam jacket, there is steam inlet, the other end to have condensation-water drain for one end of the shell.
The hand of spiral of the spiral conveying blade is identical as the hand of spiral of outer chopping blade.
The utility model has technical effect that：
Hazardous waste clinker after burning is carried out desiccation reprocessing by the utility model, and the clinker after desiccation reprocessing is aqueous
Rate is low, and reuse ratio greatly improves, and greatlys save cost, while realizing the recycling of Boiler Steam, generation
Exhaust gas enters dual firing chamber's processing, does not increase cost, realizes cooperative disposal；The utility model uses specific desiccation apparatus, that is, desiccation
Rotary kiln compares traditional rotary kiln, and drying and other treatment effect is good, and realizes that desiccation chopping one is completed, equipment occupation space
It is small, efficient.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram of the drying rotary kiln of the utility model.
Fig. 3 is the structural schematic diagram of the roller of the utility model.
In figure：1, hazardous waste pretreatment system；11, rinsing area is pre-processed；12, analysis and identification area；13, hazardous waste stores up
Deposit area；2, incineration system；21, incineration rotary kiln；22, dual firing chamber；23, waste heat boiler；24, bag filter；25, scrubbing tower；
26, chimney；3, anhydration system；31, clinker transition storage device；32, water seal cools dust-extraction unit；33, slag remover；34、
Drying rotary kiln；341, kiln body；342, steam jacket；343, roller；344, spiral conveying blade；345, taper inlet；
346, taper exports end；347, steam feeding tube；348, condensed water delivery line；3410, sleeve is imported；3411, sleeve is conveyed；
3412, sleeve is shredded；3413, sleeve is exported；3414, transportation section；3415, section is shredded；3416, taper shreds guide section；3417、
Import blade；3418, outer chopping blade；3419, interior chopping blade；3420, shell；3421, steam inlet；3422, condensed water
Outlet；35, dry cleansing device.
Specific implementation mode
Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings, whereby such as to the utility model
What applied technology method solves technical problem, and the realization process for reaching technique effect can be fully understood and implemented.It needs
As long as it is noted that not constituting conflict, each feature in each embodiment and each embodiment in the utility model can
To be combined with each other, it is formed by technical solution and both is within the protection scope of the present invention.
As shown in Figure 1, the dangerous waste object burning and drying integrated processing system of the present embodiment, including hazardous waste pretreatment system
System 1, incineration system 2 and anhydration system 3；
Hazardous waste pretreatment system 1 includes that the pretreatment rinsing area 11 being sequentially connected, analysis and identification area 12 and danger are useless
Object storage area 13, pre-process the flushing water outlet side of rinsing area 11, analysis and identification area 12 experiment wastewater outlet side with burning
System 2 is connected, and hazardous waste storage area 13 is connected with incineration system 2；
Incineration system 2 include be sequentially connected incineration rotary kiln 21, dual firing chamber 22, waste heat boiler 23, bag filter 24,
Scrubbing tower 25 and chimney 26, pre-process the flushing water outlet side of rinsing area 11, analysis and identification area 12 experiment wastewater outlet side and
Hazardous waste storage area 13 is connected with the feed end of incineration rotary kiln 21；
Anhydration system 3 includes that the clinker transition storage device 31 that is sequentially connected, water seal cool dust-extraction unit 32, slagging-off
Machine 33, drying rotary kiln 34 and dry cleansing device 35, slag output end and the clinker transition storage device 31 of incineration rotary kiln 21 connect
It connects, the outlet port of drying rotary kiln 34 connects dual firing chamber 22, and the steam (vapor) outlet of waste heat boiler 23 connects drying rotary kiln 34.
The study found that slag tap by water seal wet type, clinker moisture content about 40~50%, average 45%.In the present embodiment, if
Fixed a set of water seal, slag tap, desiccation integral makeup is set, desiccation after slagging tap, be used as heat source, desiccation generation using the steam that boiler generates
Exhaust gas enter dual firing chamber and burn complete, energy utilization rate is high, high treating effect.
Embodiment 2：As shown in Fig. 2, the dangerous waste object burning and drying integrated processing system of the present embodiment, desiccation apparatus 34 wraps
Include kiln body 341, the roller helix transporting device that is installed in kiln body 341 and the steam jacket 342 for being wrapped in 341 periphery of kiln body,
The steam (vapor) outlet of the steam inlet connection waste heat boiler of steam jacket 342；Roller helix transporting device includes being movably installed in kiln
Roller 343 in body 341, the spiral conveying blade 344 and chopper blade for being installed on 343 periphery of roller, the both ends point of roller 343
It Ju You not taper inlet 345 and taper export end 346；Roller 343 is hollow-core construction, and taper inlet 345, which is equipped with, to be passed through
The steam feeding tube 347 of drum cavity, taper export end 346 are equipped with the condensed water delivery line 348 for being passed through drum cavity.
The utility model is using indirectly drying, i.e., one layer of steam jacket 342 of package outside rotary kiln, in steam jacket 342
Steam is crossed, the high clinker of moisture content is walked in kiln, clinker desiccation is 5% or less moisture content.More original clinker moisture content about 40~
50%, minimizing 40% or so greatlys save cost, while realizing the recycling of Boiler Steam, the exhaust gas of generation into
Enter dual firing chamber's processing, do not increase cost, realizes cooperative disposal.In the utility model, 343 inner cavity of roller is passed through hot steam, with steaming
Hot steam in vapour chuck 342 carries out interior external heat to roller 343, to improve the desiccation effect of clinker.The outer wall of roller 343
There is the annular separate space that can install spiral conveying blade 344, clinker to pass through taper inlet 345 between the inner wall of kiln body 341
It is directed into the separate space, after desiccation, is exported from taper export end 346.The utility model, will by the way of annular separate space
Clinker is slowly pushed into the other end by spiral conveying blade 344 from one end of roller 343, and diffusional area is big, desiccation effect pole
It is good.Roller 343 is structure as a whole using helical feed with chopping, and helical feed carries out dispersion conveying to slag charge, and process is subsequent
Spiral chopper blade 349 carries out chopping processing again, can directly be stored again from the slag charge after desiccation derived from taper export end 346
With without using additional shredding machine processing, saving space simplifies program.
Embodiment 3：As the preferred embodiment of embodiment 2, end 346, roller 343 are exported from taper inlet 345 to taper
On spiral conveying blade 344 between vanepiston be gradually reduced.Since the clinker moisture content of the feed end of roller 343 is high,
Cohesive force between clinker is larger, therefore uses the spiral conveying blade 344 of coarse pitch, and the resistance of conveying is small, and closer to roller
343 discharge end, the cohesive force between clinker is smaller, therefore uses the spiral conveying blade 344 of fine pith, and clinker is scatter as possible
Come, realizes maximum drying and other treatment.
Embodiment 4：As the preferred embodiment of embodiment 2, the inner cavity of roller 343 is exported from taper inlet 345 to taper
End 346, internal diameter is gradually reduced.That is the intracavity bottom of roller 343 exports end 346 from taper inlet 345 to taper, to incline
It is arranged obliquely, it is therefore intended that be conducive to the deposition of condensed water, condensed water delivery line 348 is facilitated to export condensed water.
Embodiment 5：As the preferred embodiment of embodiment 2, end 346, roller 343 are exported from taper inlet 345 to taper
Periphery be followed successively by import sleeve 3410, conveying sleeve 3411, chopping sleeve 3412 and export sleeve 3413；Roller 343 includes
Chopping section 3415 close to the transportation section 3414 of taper inlet 345 and close to taper export end 346, transportation section 3414 and chopping
Transition is connected with taper chopping guide section 3416 between section 3415, and the circumferential surface that taper shreds guide section 3416 has importing blade
3417, there is the circumferential surface of chopping section 3415 outer chopping blade 3418, the inner peripheral surface of chopping sleeve 3412 to have and outer chopping blade
The interior chopping blade 3419 of 3418 cooperations.In the utility model, sleeve 3410, conveying sleeve 3411, chopping sleeve 3412 are imported
And export sleeve 3413 is separately welded to connect, easy to process, manufacturing cost is low.Using outer chopping blade 3418 and interior chopping blade
3419 are combined, and are shredded to the slag charge of desiccation.
Preferably, outer chopping blade 3418 is arranged in the circumferential surface of chopping section 3415, spiral conveying blade 344 in the shape of a spiral
The hand of spiral it is identical as the hand of spiral of outer chopping blade 3418.Spiral is shredded and helical feed is combined, and is improved and is shredded, is defeated
Send efficiency.Also, the screw pitch of outer chopping blade 3418 is smaller than the screw pitch of spiral conveying blade 344, it is therefore intended that, it will
Slag charge is squeezed between the outer chopping blade 3418 of rear end, is formed and is squeezed chopping, chopping result is more preferably.
In the utility model, imports sleeve 3410, conveying sleeve 3411, chopping sleeve 3412 and export the outer of sleeve 3413
Integrated casing 3420 is installed, the both ends of shell 3420 will import sleeve 3410 and export sleeve 3413 is closed, shell week
Steam jacket is formed between 3420 and importing sleeve 3410, conveying sleeve 3411, chopping sleeve 3412 and export sleeve 3413
342, there is steam inlet 3421, the other end to have condensation-water drain 3422 for one end of shell 3420.Integrated casing 3420 with
It is knockdown to import sleeve 3410, conveying sleeve 3411, chopping sleeve 3412 and the mounting structure for exporting sleeve 3413, assembling side
Just.
Embodiment 6：The treatment process using dangerous waste object burning and drying integrated processing system of the present embodiment, including：Profit
With hazardous waste pretreatment system 1 to the preprocessing process of hazardous waste, using incineration system 2 to pretreated hazardous waste
Burning disposal cross and the drying and other treatment process using anhydration system 3 to clinker after burning disposal；
Preprocessing process is rinsed hazardous waste including the use of flusher in pretreatment rinsing area 11, utilizes analysis
Differentiate that the analysis and identification device in area 12 differentiates the hazardous waste after flushing, the hazardous waste after discriminating is placed in dangerous useless
In object storage area 13, waste water and analysis and identification device that flusher rinses hazardous waste hazardous waste is differentiated after waste water
It is passed through incineration rotary kiln 21；
Burning disposal process carries out burning disposal including the use of incineration rotary kiln 21 to hazardous waste, incineration rotary kiln 21 is produced
The heat that raw flue gas carries out second-time burning processing by dual firing chamber 22, second-time burning generates carries out waste heat by waste heat boiler 23
Using processing, UTILIZATION OF VESIDUAL HEAT IN treated flue dust by passing through scrubbing tower 25 after 24 dust removal process of bag filter, dust removal process
The flue gas after carrying out washing treatment, washing is carried out to be discharged by chimney 26；
Drying and other treatment process includes that the clinker in clinker transition storage device 31 is cooled dust-extraction unit by water seal
Clinker after 32 progress cooling and dedusting processing, cooling and dedusting is carried out by slag remover 33 except Slag treatment, slagging-off treated clinker
It is passed through after carrying out drying and other treatment, desiccation in drying rotary kiln 34 and is shredded again by shredding machine 35, obtain moisture content and be less than 5%
Desiccation clinker, carry out dry again to desiccation clinker finally by dry cleansing device 36 and clean；Drying rotary kiln 34 from
Hot steam is introduced at waste heat boiler 23 as heat source, the exhaust gas that drying rotary kiln 34 generates is led in dual firing chamber 22 to be fired again
It burns.
Embodiment provided above is the better embodiment of the utility model, only is used for facilitating illustrating the utility model, and
It is non-to impose any limitation on the present invention, any those of ordinary skill in the art, if not departing from
In the range of the carried technical characteristic of the utility model, locally changes or repair using made by the utility model disclosed technology content
The equivalent embodiment of decorations, and without departing from the technical characteristics of the utility model content, still fall within the utility model technical characteristic
In the range of.
Claims (8)
1. a kind of dangerous waste object burning and drying integrated processing system, it is characterised in that：Including hazardous waste pretreatment system (1),
Incineration system (2) and anhydration system (3)；
The hazardous waste pretreatment system (1) include the pretreatment rinsing area (11) being sequentially connected, analysis and identification area (12) and
Hazardous waste storage area (13), the flushing water outlet side of pretreatment rinsing area (11), the experiment of analysis and identification area (12) are useless
Water outlet side is connected with the incineration system (2), and the hazardous waste storage area (13) is connected with incineration system (2)；
The incineration system (2) includes the incineration rotary kiln (21) being sequentially connected, dual firing chamber (22), waste heat boiler (23), cloth bag
Deduster (24), scrubbing tower (25) and chimney (26), the flushing water outlet side of pretreatment rinsing area (11), analysis and identification area
(12) experiment wastewater outlet side and hazardous waste storage area (13) is connected with the feed end of the incineration rotary kiln (21)；
The anhydration system (3) includes that the clinker transition storage device (31) being sequentially connected, water seal cool dust-extraction unit
(32), slag remover (33), drying rotary kiln (34) and dry cleansing device (35), the slag output end of the incineration rotary kiln (21) with
Clinker transition storage device (31) connection, the outlet port of the drying rotary kiln (34) connect the dual firing chamber
(22), the smoke outlet of the steam (vapor) outlet and chimney (26) of the waste heat boiler (23) connects the drying rotary kiln (34).
2. dangerous waste object burning and drying integrated processing system according to claim 1, it is characterised in that：The desiccation revolution
The roller helix transporting device and be wrapped in kiln body (341) periphery that kiln (34) includes kiln body (341), is installed in kiln body (341)
Steam jacket (342), the steam jacket (342) steam inlet connection waste heat boiler steam (vapor) outlet；The roller spiral shell
Rotation conveying device includes the roller (343) being movably installed in the kiln body (341), is installed on the roller (343) periphery
The both ends of spiral conveying blade (344) and chopper blade, the roller (343) are respectively provided with taper inlet (345) and taper
It exports end (346)；The roller (343) is hollow-core construction, and the taper inlet (345) is equipped with the steaming for being passed through drum cavity
Vapour ingress pipe (347), taper export end (346) are equipped with the condensed water delivery line (348) for being passed through drum cavity.
3. dangerous waste object burning and drying integrated processing system according to claim 2, it is characterised in that：From taper inlet
(345) end (346) are exported to taper, the vanepiston between spiral conveying blade (344) on the roller (343) gradually subtracts
It is small.
4. dangerous waste object burning and drying integrated processing system according to claim 3, it is characterised in that：The roller
(343) inner cavity exports end (346) from taper inlet (345) to taper, and internal diameter is gradually reduced.
5. dangerous waste object burning and drying integrated processing system according to claim 2, it is characterised in that：From taper inlet
(345) end (346) are exported to taper, the periphery of the roller (343), which is followed successively by, imports sleeve (3410), conveying sleeve
(3411), chopping sleeve (3412) and export sleeve (3413)；The roller (343) includes close to the taper inlet
(345) transportation section (3414) and the chopping section (3415) close to taper export end (346), the transportation section (3414) with
Transition is connected with taper chopping guide section (3416), the circumferential surface of the taper chopping guide section (3416) between chopping section (3415)
With blade (3417) is imported, the circumferential surface of the chopping section (3415) has outer chopping blade (3418), the chopping sleeve
(3412) inner peripheral surface has the interior chopping blade (3419) with outer chopping blade (3418) cooperation.
6. dangerous waste object burning and drying integrated processing system according to claim 5, it is characterised in that：The outer shredder bar
Piece (3418) is arranged in the circumferential surface of the chopping section (3415) in the shape of a spiral.
7. dangerous waste object burning and drying integrated processing system according to claim 5, it is characterised in that：The importing sleeve
(3410), the periphery of conveying sleeve (3411), chopping sleeve (3412) and export sleeve (3413) is equipped with integrated casing
(3420), the both ends of the shell (3420) will import sleeve (3410) and export sleeve (3413) is closed, the shell
(3420) between the importing sleeve (3410), conveying sleeve (3411), chopping sleeve (3412) and export sleeve (3413)
The steam jacket (342) is formed, one end of the shell (3420) has steam inlet (3421), and the other end has condensed water
It exports (3422).
8. dangerous waste object burning and drying integrated processing system according to claim 6, it is characterised in that：The helical feed
The hand of spiral of blade (344) is identical as the outer hand of spiral of chopping blade (3418).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721448141.5U CN207880847U (en) | 2017-11-02 | 2017-11-02 | Dangerous waste object burning and drying integrated processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721448141.5U CN207880847U (en) | 2017-11-02 | 2017-11-02 | Dangerous waste object burning and drying integrated processing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207880847U true CN207880847U (en) | 2018-09-18 |
Family
ID=63500886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721448141.5U Expired - Fee Related CN207880847U (en) | 2017-11-02 | 2017-11-02 | Dangerous waste object burning and drying integrated processing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207880847U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107816720A (en) * | 2017-11-02 | 2018-03-20 | 苏州浩长空环保科技有限公司 | Dangerous waste thing burning and drying integrated processing system and its handling process |
| CN107906537A (en) * | 2017-11-02 | 2018-04-13 | 苏州浩长空环保科技有限公司 | Dangerous waste thing burning and drying integrated processing system |
-
2017
- 2017-11-02 CN CN201721448141.5U patent/CN207880847U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107816720A (en) * | 2017-11-02 | 2018-03-20 | 苏州浩长空环保科技有限公司 | Dangerous waste thing burning and drying integrated processing system and its handling process |
| CN107906537A (en) * | 2017-11-02 | 2018-04-13 | 苏州浩长空环保科技有限公司 | Dangerous waste thing burning and drying integrated processing system |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180918 Termination date: 20191102 |
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| CF01 | Termination of patent right due to non-payment of annual fee |