CN107244792A - A kind of sludge quick drying apparatus - Google Patents
A kind of sludge quick drying apparatus Download PDFInfo
- Publication number
- CN107244792A CN107244792A CN201710536738.3A CN201710536738A CN107244792A CN 107244792 A CN107244792 A CN 107244792A CN 201710536738 A CN201710536738 A CN 201710536738A CN 107244792 A CN107244792 A CN 107244792A
- Authority
- CN
- China
- Prior art keywords
- sludge
- drying
- screen cloth
- chamber
- pulverizer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000001035 drying Methods 0.000 title claims abstract description 81
- 239000010802 sludge Substances 0.000 title claims abstract description 76
- 238000000746 purification Methods 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 239000004744 fabric Substances 0.000 claims description 35
- 238000002156 mixing Methods 0.000 claims description 17
- 238000010438 heat treatment Methods 0.000 claims description 15
- 241000883990 Flabellum Species 0.000 claims description 12
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 238000007664 blowing Methods 0.000 claims description 6
- 239000002828 fuel tank Substances 0.000 claims description 5
- 238000000227 grinding Methods 0.000 claims description 5
- 239000010865 sewage Substances 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract description 14
- 239000002912 waste gas Substances 0.000 abstract description 9
- 239000007788 liquid Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 abstract description 3
- 239000007864 aqueous solution Substances 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000010954 inorganic particle Substances 0.000 description 1
- 235000015110 jellies Nutrition 0.000 description 1
- 239000008274 jelly Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 230000001717 pathogenic effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000004449 solid propellant Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/38—Removing components of undefined structure
- B01D53/40—Acidic components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a kind of sludge quick drying apparatus, it includes sludge pulverizer, preliminarily dried machine, sludge drying chamber, dry supporting part and Tail gas cleanup unit, feed hopper is connected with the charging aperture of sludge pulverizer, sludge enters sludge pulverizer by feed hopper, the discharging opening of sludge pulverizer is connected with preliminarily dried machine, the discharge end of preliminarily dried machine is provided with discharge nozzle, and discharge nozzle is extended into drying sludge room, and dry supporting part is provided with drying sludge room.The effect of purifying box is to carry out double purification to waste gas, alkaline aqueous solution is provided with purification water tank, exhaust manifolds lower port is located at below liquid level, the effect of cleaned water tank is to remove the sour gas in waste gas, so as to further pollution of the reduction waste gas to environment, other device, so as to greatly facilitate the drying in sludge later stage, improves the drying efficiency of device also by being dried and being crushed to sludge.
Description
Technical field：
The present invention relates to technical field of environment protection equipment, and in particular to a kind of sludge quick drying apparatus.
Background technology：
Sludge is the product after sewage disposal, is that one kind is made up of organic relic, microorganism, inorganic particle, colloid etc.
Extremely complex heterogeneous body.The key property of sludge is that moisture content is high, up to more than 99%, content of organics is high, holds
Easily degenerate smelly, and particle is thinner, and proportion is smaller, jelly liquid, and it is the concentrated thing between liquid and solid, can
To be transported with pump, but it is difficult to carry out separation of solid and liquid by settling.Moisture content is reduced to a certain degree of sludge with higher
Calorific value, solid fuel can be made by mixing into other fuel and be used to regard highly effective fuel.Dirt after being handled using drying process
Mud, after drying moisture content can be down to about 20% or so, drying process is in addition to simplest Exposure to Sunlight, and conventional is heated drying skill
Art.Heated drying technology can kill pathogen completely, sludge is in stabilization of state.But drying process can produce substantial amounts of useless
Gas and rate of drying is slower, it is difficult to meet efficiently, quickly dry demand.
The content of the invention：
There is provided a kind of sludge quick drying apparatus aiming at the deficiencies in the prior art for the purpose of the present invention.
To achieve the above object, technology solution of the invention is as follows：
A kind of sludge quick drying apparatus, it includes sludge pulverizer, preliminarily dried machine, sludge drying chamber, dry carrying
Feed hopper is connected with portion and Tail gas cleanup unit, the charging aperture of sludge pulverizer, sludge is crushed by feed hopper into sludge
Machine, the discharging opening of sludge pulverizer is connected with preliminarily dried machine, and the discharge end of preliminarily dried machine is provided with discharge nozzle, and discharge nozzle prolongs
Stretch into drying sludge room, dry supporting part is provided with drying sludge room, discharge nozzle is with drying supporting part just to setting；Sludge
Heating element is provided with hothouse, heating element is connected with outside air intake assembly, and outside air intake assembly includes air blower, and air blower leads to
Cross air inlet pipe and be communicated with air storage chamber, air inlet pipe and be provided with air intake valve, fuel tank, fuel tank are provided with the outer wall of air storage chamber
Cartridge stretch into air storage chamber；Heating element includes heating element body, and heating element body lower part is provided with bottom mixing chamber, and bottom is mixed
The upper end of air chamber is communicated with top mixing chamber, and the junction of bottom mixing chamber and top mixing chamber is provided with flow control valve, flows
The exit of adjustable valve is provided with staggered gas distribution holes, and the outlet of top mixing chamber is connected with fire resisting shower nozzle, resistance to
The edge of fire-fighting head is provided with cooling duct, and the upper end of fire resisting shower nozzle has injection channel, and injection channel is big top and small bottom
Inverted cone-shaped structure, injection channel lower end formed combustion chamber.
Drying supporting part includes receiving hopper, and receiving hopper bottom, which is provided with drying chamber, drying chamber, is provided with multistage do
Dry screen cloth, multilevel drying screen cloth bottom is provided with corresponding sludge out pipe, and multilevel drying screen cloth includes being obliquely installed and connecting successively
The first screen cloth, the second screen cloth, the 3rd screen cloth and the 4th shine net, the first screen cloth, the second screen cloth, the 3rd screen cloth and the 4th shine net
Mesh increases successively；Sludge out pipe includes the first sludge out pipe corresponding with the first screen cloth, the second screen cloth and to shine net with the 4th corresponding
Second sludge out pipe；The right-hand member of drying chamber is provided with air blowing pipeline, and air blowing pipeline is used to remove the blocking on multilevel drying screen cloth
Thing.
Sludge drying chamber upper end is provided with Tail gas cleanup unit, and Tail gas cleanup unit includes unloading gas port, unloads gas port provided with row
Airway, exhaust manifolds are through purifying box and connect the purification water tank on the downside of purifying box.
Air blower includes extending air-out on external shell and the rotary fan being arranged in external shell, external shell
Portion, outlet section is connected with air inlet pipe.
Sludge pulverizer includes grinding barrel, and grinding barrel is internally provided with crushing flabellum, crushes flabellum and fixes on the rotary shaft,
The end of rotary shaft is fixed with crushing motor；The quantity for crushing flabellum is multiple, crushes flabellum and is from top to bottom evenly distributed on rotation
In rotating shaft.
Preliminarily dried machine is mechanical drying machine, including drying, and rotating cylinder, rotating cylinder warp are provided with drying
Driven by electric rotating machine, the bottom of drying is provided with delivery port, and delivery port is connected with apparatus for treating sewage.
Rotating support is provided between rotating cylinder and drying, rotating cylinder surface is furnished with leaking hole, and electric rotating machine passes through
Belt grooves of the driving belt connection positioned at rotating cylinder surface.
The beneficial effects of the present invention are：The effect of purifying box is that waste gas is carried out to be provided with double purification, purification water tank
Alkaline aqueous solution, exhaust manifolds lower port is located at below liquid level, and the effect of cleaned water tank is to remove the sour gas in waste gas, from
And pollution of the waste gas to environment is further reduced, device to sludge also by being dried and being crushed in addition, so that greatly side
The sludge later stage drying, improve the drying efficiency of device.
Brief description of the drawings：
Fig. 1 is structural representation of the invention；
Fig. 2 is the structural representation for drying supporting part
Fig. 3 is the structural representation of heating element
Embodiment：
In order that the above objects, features and advantages of the present invention can be more obvious understandable, below in conjunction with the accompanying drawings to this hair
Bright embodiment is described in detail.
As Figure 1-3, a kind of sludge quick drying apparatus, it includes sludge pulverizer 2, preliminarily dried machine 3, sludge and done
Feed hopper is connected with dry room 1, dry supporting part 6 and Tail gas cleanup unit, the charging aperture of sludge pulverizer 2, sludge is by entering
Hopper enters sludge pulverizer 2, and the discharging opening of sludge pulverizer 2 is connected with preliminarily dried machine 3, the discharge end of preliminarily dried machine 3
Discharge nozzle is provided with, discharge nozzle is extended into sludge drying chamber 1, dry supporting part 6, discharge nozzle are provided with sludge drying chamber 1
With drying supporting part 6 just to setting；Heating element 5 is provided with sludge drying chamber 1, heating element 5 is connected with outside air intake assembly, outside
Portion's air intake assembly includes air blower 44, and air blower 44 is communicated with air storage chamber 40, air inlet pipe by air inlet pipe and is provided with intake valve
Fuel tank 41 is provided with door 43, the outer wall of air storage chamber 40, the cartridge 42 of fuel tank 41 stretches into air storage chamber 40；Heating element 5 is wrapped
Heating element body is included, heating element body lower part is provided with bottom mixing chamber 50, and the upper end of bottom mixing chamber 50 is communicated with top and mixed
The junction 53 of air chamber 52, bottom mixing chamber 50 and top mixing chamber 52 is provided with flow control valve 54, flow control valve 54
Exit is provided with staggered gas distribution holes 51, and the outlet of top mixing chamber 52 is connected with fire resisting shower nozzle 55, resistance to fire-fighting
First 55 edge is provided with cooling duct 58, and the upper end of fire resisting shower nozzle 55 has injection channel 57, and injection channel 57 is that upper end is small
The big inverted cone-shaped structure in lower end, the lower end of injection channel 57 forms combustion chamber 56；.
Drying supporting part 6 includes receiving hopper 61, and the bottom of receiving hopper 61 is provided with drying chamber 60, drying chamber 60 and set
There is multilevel drying screen cloth 63, the bottom of multilevel drying screen cloth 63 is provided with corresponding sludge out pipe, and multilevel drying screen cloth 63 is included successively
The first screen cloth 631, the second screen cloth 632, the 3rd screen cloth 633 and the 4th solarization net 634 for being obliquely installed and connecting, the first screen cloth 631,
The mesh of second screen cloth 632, the 3rd screen cloth 633 and the 4th solarization net 634 increases successively；Sludge out pipe includes and the first screen cloth 631, the
Corresponding first sludge out pipe 651 of two screen cloth 632 and second sludge out pipe 652 corresponding with the 4th solarization net 634；The right side of drying chamber 60
End is provided with air blowing pipeline 64, and air blowing pipeline 64 is used to remove the tamper on multilevel drying screen cloth 63.
The upper end of sludge drying chamber 1 is provided with Tail gas cleanup unit, and Tail gas cleanup unit includes unloading gas port 70, unloads and set on gas port 70
There are exhaust manifolds 71, exhaust manifolds 71 are through purifying box 8 and connect the purification water tank 9 on the downside of purifying box 8.
Air blower 44 includes extending on external shell and the rotary fan being arranged in external shell, external shell
Wind portion, outlet section is connected with air inlet pipe.
Sludge pulverizer 2 includes grinding barrel, and grinding barrel is internally provided with crushing flabellum 21, crushes flabellum 21 and is fixed on rotation
On axle, the end of rotary shaft is fixed with crushing motor 20；The quantity for crushing flabellum 21 is multiple, crushes flabellum uniform from top to bottom
Distribution is on the rotary shaft.
Preliminarily dried machine 3 is mechanical drying machine, including drying, and rotating cylinder 32, rotation rolling are provided with drying
Cylinder 32 drives via electric rotating machine 31, and the bottom of drying is provided with delivery port, and delivery port is connected with apparatus for treating sewage.
Rotating support is provided between rotating cylinder 32 and drying, the surface of rotating cylinder 32 is furnished with leaking hole, electric rotating machine
31 connect the belt grooves positioned at the surface of rotating cylinder 32 by driving belt.
The filter being be arranged in parallel in purifying box provided with polylith, filter left end connection movable sealing plate, movable sealing plate passes through
It is bolted on the outside of purifying box, the effect of purifying box is waste gas to be carried out in double purification, purification water tank provided with alkaline water-soluble
Liquid, exhaust manifolds lower port is located at below liquid level, and the effect of cleaned water tank is to remove the sour gas in waste gas, so that further
Pollution of the waste gas to environment is reduced, device to sludge also by being dried and being crushed in addition, so as to greatly facilitate sludge
The drying in later stage, improves the drying efficiency of device.
The embodiment is to the illustrative present invention, not for the limitation present invention.Any those skilled in the art
The embodiment can be modified under the spirit and scope without prejudice to the present invention, therefore the rights protection model of the present invention
Enclose, should be as listed by the claim of the present invention.
Claims (6)
1. a kind of sludge quick drying apparatus, it is characterised in that：It includes sludge pulverizer (2), preliminarily dried machine (3), sludge
Feed hopper is connected with hothouse (1), dry supporting part (6) and Tail gas cleanup unit, the charging aperture of sludge pulverizer (2),
Sludge enters sludge pulverizer (2) by feed hopper, and the discharging opening of sludge pulverizer (2) is connected with preliminarily dried machine (3), preliminary dry
The discharge end of dry machine (3) is provided with discharge nozzle, and discharge nozzle is extended into sludge drying chamber (1), is provided with sludge drying chamber (1)
Supporting part (6) is dried, discharge nozzle is with drying supporting part (6) just to setting；Heating element (5) is provided with sludge drying chamber (1), is sent out
Hot device (5) is connected with outside air intake assembly, and outside air intake assembly includes air blower (44), and air blower (44) is connected by air inlet pipe
Have and air intake valve (43) is provided with air storage chamber (40), air inlet pipe, fuel tank (41) is provided with the outer wall of air storage chamber (40), fire
The cartridge (42) of batch can (41) stretches into air storage chamber (40)；Heating element (5) includes heating element body, and heating element body lower part is set
There is a bottom mixing chamber (50), the upper end of bottom mixing chamber (50) is communicated with top mixing chamber (52), bottom mixing chamber (50) and upper
The junction (53) of portion's mixing chamber () 52 is provided with flow control valve (54), and the exit of flow control valve (54) is provided with friendship
The gas distribution holes (51) of mistake arrangement, the outlet of top mixing chamber (52) is connected with fire resisting shower nozzle (55), fire resisting shower nozzle (55)
Edge is provided with cooling duct (58), and the upper end of fire resisting shower nozzle (55) has injection channel (57), and injection channel (57) is upper end
The big inverted cone-shaped structure in small lower end, injection channel (57) lower end forms combustion chamber (56)；Drying supporting part (6) includes receiving hopper
(61), receiving hopper (61) bottom is provided with drying chamber (60), drying chamber (60) and is provided with multilevel drying screen cloth (63), many
Level dries screen cloth (63) bottom and is provided with corresponding sludge out pipe, and multilevel drying screen cloth (63) includes what is be obliquely installed and connect successively
First screen cloth (631), the second screen cloth (632), the 3rd screen cloth (633) and the 4th shine net (634), the first screen cloth (631), the second sieve
The mesh of net (632), the 3rd screen cloth (633) and the 4th solarization net (634) increases successively；Sludge out pipe include with the first screen cloth (631),
Corresponding first sludge out pipe (651) of second screen cloth (632) and the second sludge out pipe (652) corresponding with the 4th solarization net (634)；Dry
The right-hand member of chamber (60) is provided with air blowing pipeline (64), and air blowing pipeline (64) is used to remove the blocking on multilevel drying screen cloth (63)
Thing.
2. a kind of sludge quick drying apparatus according to claim 1, it is characterised in that：Sludge drying chamber (1) upper end is set
There is Tail gas cleanup unit, Tail gas cleanup unit includes unloading gas port (70), unloads gas port (70) provided with exhaust manifolds (71), exhaust is led
Pipe (71) is through purifying box (8) and connects the purification water tank (9) on the downside of purifying box (8).
3. a kind of sludge quick drying apparatus according to claim 1, it is characterised in that：Air blower (44) includes external shell
Extend outlet section on body and the rotary fan being arranged in external shell, external shell, outlet section is connected with air inlet pipe.
4. a kind of sludge quick drying apparatus according to claim 1, it is characterised in that：Sludge pulverizer (2) includes powder
Broken bucket, grinding barrel is internally provided with crushing flabellum (21), crushes flabellum (21) and fixes on the rotary shaft, the end of rotary shaft is fixed
There is crushing motor (20)；The quantity for crushing flabellum (21) is multiple, crushes flabellum and is from top to bottom uniformly distributed on the rotary shaft.
5. a kind of sludge quick drying apparatus according to claim 1, it is characterised in that：Preliminarily dried machine (3) is machinery
Rotating cylinder (32) is provided with formula drying machine, including drying, drying, rotating cylinder (32) drives via electric rotating machine (31)
Dynamic, the bottom of drying is provided with delivery port, and delivery port is connected with apparatus for treating sewage.
6. a kind of sludge quick drying apparatus according to claim 5, it is characterised in that：Rotating cylinder (32) and drying
Between be provided with rotating support, rotating cylinder (32) surface is furnished with leaking hole, and electric rotating machine (31) is located at by driving belt connection
The belt grooves on rotating cylinder (32) surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710536738.3A CN107244792A (en) | 2017-07-04 | 2017-07-04 | A kind of sludge quick drying apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710536738.3A CN107244792A (en) | 2017-07-04 | 2017-07-04 | A kind of sludge quick drying apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107244792A true CN107244792A (en) | 2017-10-13 |
Family
ID=60015186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710536738.3A Withdrawn CN107244792A (en) | 2017-07-04 | 2017-07-04 | A kind of sludge quick drying apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107244792A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108036635A (en) * | 2017-12-06 | 2018-05-15 | 合肥麦稻之星机械有限公司 | A kind of energy-saving control system of foodstuff drying device |
| CN108393340A (en) * | 2018-02-02 | 2018-08-14 | 张连军 | A kind of argillization formula soil restoring device |
| CN112429933A (en) * | 2020-11-02 | 2021-03-02 | 江苏苏讯新材料科技有限公司 | Low-temperature sludge drying treatment process |
-
2017
- 2017-07-04 CN CN201710536738.3A patent/CN107244792A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108036635A (en) * | 2017-12-06 | 2018-05-15 | 合肥麦稻之星机械有限公司 | A kind of energy-saving control system of foodstuff drying device |
| CN108036635B (en) * | 2017-12-06 | 2019-11-29 | 合肥麦稻之星机械有限公司 | A kind of energy-saving control system of foodstuff drying device |
| CN108393340A (en) * | 2018-02-02 | 2018-08-14 | 张连军 | A kind of argillization formula soil restoring device |
| CN108393340B (en) * | 2018-02-02 | 2020-02-14 | 北京埃克兰德生态环保技术有限公司 | Argillization formula soil prosthetic devices |
| CN112429933A (en) * | 2020-11-02 | 2021-03-02 | 江苏苏讯新材料科技有限公司 | Low-temperature sludge drying treatment process |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20171013 |
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| WW01 | Invention patent application withdrawn after publication |