CN209098489U - The cooling transfer structure of sludge and sludge treatment device - Google Patents
The cooling transfer structure of sludge and sludge treatment device Download PDFInfo
- Publication number
- CN209098489U CN209098489U CN201821709083.1U CN201821709083U CN209098489U CN 209098489 U CN209098489 U CN 209098489U CN 201821709083 U CN201821709083 U CN 201821709083U CN 209098489 U CN209098489 U CN 209098489U
- Authority
- CN
- China
- Prior art keywords
- sludge
- cooling
- material conveying
- conveying passage
- transfer structure
- 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.)
- Active
Links
Landscapes
- Treatment Of Sludge (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The utility model discloses a kind of cooling transfer structure of sludge and sludge treatment devices, are related to sludge treatment field, have achieved the purpose that cool down to sludge after heat drying.The cooling transfer structure of the sludge includes: transmission device, and transmission device has material conveying passage；Cooling device, cooling device are connected with material conveying passage, for reducing the air themperature in the material conveying passage.Sludge after heat drying enters in the cooling transfer structure of the sludge to be cooled down while transmission, transmits specifically, the sludge after heat drying enters in the material conveying passage of transmission device, sludge is sent to progress next step processing in next structure；The cooling transfer structure of the sludge further includes cooling device, cooling device is connected with material conveying passage, cooling device cools down to the sludge after the heat drying in material conveying passage, prevents high temperature powder shape sludge from burning or even exploding in the process of next step and causes damages.The utility model is mainly used for Treatment of Sludge.
Description
Technical field
The utility model relates to sludge treatment field more particularly to a kind of cooling transfer structure of sludge and Treatment of Sludge to set
It is standby.
Background technique
Municipal sludge heat drying is the important means of sludge reduction, is in pulverulence by the sludge after heat drying,
With temperature height, natural cooling easily condenses, and high temperature powder shape sludge has inflammable and explosive characteristic, therefore the cooling of sludge is aobvious after heat drying
It obtains quite important.
Currently used dewatered sludge cooling system is the screw conveyor with cooling jacket, and dewatered sludge is in spiral
Moisture condensation is easy when interior cooling, sludge is attached on cell wall after mixing with dew, continues during helical feed with the time,
Forming one layer of hard shell leads to equipment operation failure, it is difficult to clear up.
Utility model content
In view of this, the utility model embodiment provides a kind of cooling transfer structure of sludge and sludge treatment device, reach
The purpose to cool down to sludge after heat drying.
In order to achieve the above objectives, the utility model mainly provides the following technical solutions:
On the one hand, the utility model embodiment provides a kind of cooling transfer structure of sludge, the cooling transfer structure of the sludge
Include:
Transmission device, the transmission device have material conveying passage；
Cooling device, the cooling device are connected with the material conveying passage, logical for reducing material conveying
Air themperature in road.
Specifically, the cooling device includes cooling blower and/or heat exchanger.
Specifically, the cooling blower is negative pressure cooling blower.
Specifically, the transmission device includes driving mechanism and delivery section, there is the Sheng for holding material in the delivery section
Space is carried, the space that contains is the material conveying passage；
The cooling device is located at the top of the delivery section.
Specifically, being respectively arranged with baffle in the two sides of the delivery section along the direction of delivery section conveying material；
The cooling device is arranged on the baffle；
And/or
The cooling device be it is multiple, multiple cooling devices are evenly distributed along the transfer passage.
Specifically, mesh is distributed on the delivery section and/or the baffle.
Specifically, the cooling transfer structure of the sludge further includes charging cloth device, the charging cloth device setting exists
The feed end of the material conveying passage, the charging cloth device is for uniformly conveying object into the material conveying passage
Material.
Specifically, the charging cloth device includes feed inlet and the cloth area being connected to the feed inlet, the cloth
Area is connected with the material conveying passage, and the cloth area is connected with vibrating motor, and the vibrating motor is for making the cloth
Expect that area generates vibration, so that the material in the cloth area is uniformly distributed the feed end for being delivered to the material conveying passage.
Specifically, the cooling transfer structure of the sludge further includes discharging screw, the discharging screw setting exists
The discharge end of the material conveying passage, the discharging screw are used to convey the object sent out from the material conveying passage
Material.
On the other hand, the utility model embodiment also provides a kind of sludge treatment device, which includes upper
State the cooling transfer structure of described in any item sludge.
A kind of sludge that the utility model embodiment proposes cools down transfer structure and sludge treatment device, the dirt after heat drying
Mud enters in the cooling transfer structure of the sludge to be cooled down while transmission, specifically, the sludge after heat drying enters transmission
It is transmitted in the material conveying passage of device, sludge is sent to progress next step processing in next structure；The sludge is cold
But transfer structure further includes cooling device, and cooling device is connected with material conveying passage, and cooling device is to material conveying passage
In heat drying after sludge cool down, prevent high temperature powder shape sludge burn in the process of next step even it is quick-fried
It is fried, it causes damages.
Detailed description of the invention
Fig. 1 is a kind of cooling transfer structure schematic diagram of sludge provided by the embodiment of the utility model.
Specific embodiment
Further to illustrate that the utility model is the technical means and efficacy reaching predetermined purpose of utility model and being taken,
Below in conjunction with attached drawing and preferred embodiment, to according to the utility model proposes the cooling transfer structure of sludge and sludge treatment device
And its specific embodiment, structure, feature and its effect, detailed description is as follows.
On the one hand, the utility model embodiment provides a kind of cooling transfer structure of sludge, and such as Fig. 1, the sludge is cooling to be passed
The structure is sent to include:
Transmission device 1, transmission device 1 have material conveying passage；
Cooling device 2, cooling device 2 are connected with material conveying passage, for reducing the air in material conveying passage
Temperature.
Sludge handling problem is always social question of common concern, and Sludge landfill processing technique is a mature application
Extensive Treatment of Sludge mode is sludge to be transported to the desired zones such as intermountain, level land, and paved covering inertia soil after compacting
Earth eventually forms intact land cover pattern layer, can plant green plants, but after Sludge landfill, is easy polluted underground water, and need
Occupy a large amount of soils；Sludge incineration method is a kind of relatively more thorough method of disposition sludge, is mainly divided into two major classes: one is
Dewatered sludge directly send incinerator to be burned, and another kind is the sludge elder generation heat drying that will be dehydrated, and removes its moisture, then again into
Row burns, but due to containing a large amount of organic matter in sludge, sludge but produces many pernicious gases during the burning process, such as
Sulfur dioxide, carbon dioxide etc., these gases can cause secondary pollution to atmosphere, and carry out burning pair to sludge with incineration method
Burning facility and burning condition require be it is quite stringent, operate also more troublesome, capital investment is also bigger, does not have popularization
The current conditions of application, with reinforcement and people further the recognizing to existing specific resistance to filtration technical limitation of environmentally friendly dynamics
Know, countries in the world all in investment huge sum of money research and development new technology, are striven for finding more economical, more reasonable Treatment of Sludge scheme, it is contemplated that
Containing largely to the advantageous microelement of crops in sludge, people just expect that resource utilization will be carried out after Treatment of Sludge, will
Sludge after heat drying put into Crop fertilizer etc. beneficial to resource production in, heat drying sludge disposal technology be exactly pass through by
Sludge heating, the sticky hydrolysis of organic matter in sludge is made under certain temperature and pressure, destroys the colloform texture of sludge, Ke Yitong
Shi Gaishan dewatering and anaerobic digestion performance, with the increase of hydrothermal temperature and pressure, particles collision increases, intergranular
Collision results in the destruction of colloform texture, separates irreducible water and solid particle, to breach the technology bottle of sludge difficulty dehydration
The dewatering of sludge can be improved in neck, heat drying technology, and sterilize simultaneously decomposing organic matter, and can recycle biomass energy, realizes
Minimizing, innoxious and recycling purpose, while operating cost and processing energy consumption are greatly reduced again, become Treatment of Sludge
In conventional means, but the sludge after heat drying has inflammable and explosive risk, easily condenses after natural cooling, is formed hard
Clod is attached on follow-up equipment, it is difficult to be handled, is easy to cause equipment fault, therefore the cool-down dehumidification of sludge seems phase after heat drying
When important.The utility model embodiment provides a kind of cooling transfer structure of sludge, and the cooling transfer structure of the sludge includes: transmission
Device 1, transmission device 1 have material conveying passage；Cooling device 2, cooling device 2 are connected with material conveying passage, are used for
Reduce the air themperature in material conveying passage.Wherein transmission device 1 can be belt conveyor, apron conveyor, trolley type
Conveyer, drag conveyor, embedded scraper transporter, bucket conveyor, bucket elevator, overhead chain conveyer and screw conveyor etc.
Any one can transmit the conveyer of the powder sludge after heat drying or the transmission device 1 without power traction, utilize weight
The effect of power is transmitted, and can be the vertical or inclined conveying trough or closed dispatch tube needed according to live shape,
In view of to reach best heat dissipation effect, transmission efficiency and design cost, the transmission device 1 of the design selects Belt Conveying
Machine, sewage sludge powder and air after making heat drying contact sufficiently and transmission efficiency is high, at low cost, and the material in transmission device 1 is defeated
Sending channel may be closed channel or open type channel, and closed channel can be to avoid sewage sludge powder in transmit process
There is fugitive dust, open type channel can make sewage sludge powder more preferably radiate, and Transfer pipe can be any one transmission among the above
Belt, hopper of device 1 etc. can hold the space of material；Cooling device 2 can be air cooling equipment, liquid cooling apparatus, heat exchanger
Deng the cooling medium of heat exchanger can be that perhaps the fluids such as liquid fluid can be that air, water or other boiling points are lower to gas
Gas, liquid, cooling effect and cost are combined during selection, cooling device 2 can be straight with sewage sludge powder
Contact be connected to material transmission channel the temperature in cooling duct only to make sewage sludge powder temperature reduce, wherein liquid cooling
Device is not suitable for directly contacting with sewage sludge powder, sewage sludge powder can be contained in material transmission channel, keeps material transmission logical
Direct liquid cooling outside road, heat exchanger can be dividing wall type heat exchanger, fluidly connect indirect type heat exchanger, direct contact heat transfer
Device, composite heat exchanger, wherein the position that can be contacted in material transmission channel with material can be set in direct-contact heat exchanger
It sets, sewage sludge powder is transferred into material transmission channel by feed inlet 6, and feed inlet 6 is also provided with distribution device, cloth dress
Setting can make sewage sludge powder need to enter in different material transferring channels according to scene, material transferring channel can for one or
Multiple or distribution device can be such that sewage sludge powder is evenly distributed in material transmission channel, be sent to while cooling down
It is next in order to make the considerations of in material transmission channel for thermal diffusivity when selection belt type conveyer in next treatment process
Step processing is more convenient to select the transporting pattern of other forms to convey cooling after belt type conveyer according to the actual situation
Sewage sludge powder afterwards.
A kind of sludge that the utility model embodiment proposes cools down transfer structure, and it is cold that the sludge after heat drying enters the sludge
But it is cooled down while transmission in transfer structure, specifically, the sludge after heat drying enters the material conveying of transmission device
It is transmitted in channel, sludge is sent to progress next step processing in next structure；The cooling transfer structure of the sludge also wraps
Cooling device is included, cooling device is connected with material conveying passage, after cooling device is to the heat drying in material conveying passage
Sludge cools down, and prevents high temperature powder shape sludge from burning in the process of next step even and explodes, causes damages.
Specifically, cooling device 2 includes cooling blower and/or heat exchanger.Sewage sludge powder condenses in order to prevent, and the design adopts
Freezed with air-cooled and/or heat exchanger, cooling blower is connected with material conveying passage, and cooling blower is arranged in material conveying passage
The top in the space of material is held, the fan of cooling blower can face sewage sludge powder, can preferably reduce sewage sludge powder
Temperature, while cooling device 2 can be there are also heat exchanger, and heat exchanger is arranged in material conveying passage or material transmission is logical
The some or all of of road is all heat exchanger, the temperature in material conveying passage is reduced by cooling medium, to reduce sludge
The temperature of powder, heat exchanger can be direct-contact heat exchanger, direct-contact heat exchanger have corrode it is small, without fouling, change
The thermal efficiency is high, heat transfer temperature difference is small, the small advantages such as low with investment cost of pressure drop, and direct-contact heat exchanger setting is conveyed in material
The position that can directly contact with sewage sludge powder in channel, cooling blower and heat exchanger can only be arranged a kind of or simultaneously
The quantity of setting, cooling blower or heat exchanger can be one or more, can incite somebody to action when the quantity of cooling device 2 is multiple
Multiple cooling devices 2 are uniformly arranged or in the cooling device 2 being arranged at material conveying passage feed end than close material
The more crypto set of cooling device 2 at transfer passage discharge end, because close to sewage sludge powder temperature at material conveying passage feed end
Highest, the temperature highest in material conveying passage at feed end play the role of most bright when cooling device 2 being arranged herein
It is aobvious.
Specifically, cooling blower is negative pressure cooling blower.Suction type blower is the cooling using cross-ventilation, negative pressure ventilation
Principle, negative-pressure air fan vent the air overboard decline air pressure in material conveying passage, and air weakens in material conveying passage, shape
At a negative pressuren zone, air flows into material conveying passage since draught head compensates, and negative-pressure air fan can will be in material conveying passage
Hot gas is discharged rapidly, allows temperature and ambient temperature in material conveying passage to maintain an equal level, to reduce sewage sludge powder temperature, negative-pressure air fan
Also can suck fugitive dust and foul smell through the air outlet of negative-pressure air fan while high temperature air in absorbing material transfer passage can
It in the process equipment that fugitive dust and foul smell are further utilized, avoids and occurs fugitive dust in material conveying passage, especially when material is defeated
It, can be to avoid there is fugitive dust in workshop using negative-pressure air fan cooling when to send channel be open type channel.
Specifically, transmission device 1 includes driving mechanism 3 and delivery section 4, have in delivery section 4 hold material to contain sky
Between, containing space is material conveying passage；Cooling device 2 is located at the top of delivery section 4.When transmission device 1 is belt-type conveying
When machine, material conveying passage is the space above belt, and when there are baffle 5 in belt two sides, material conveying passage is belt and gear
The space and top that plate 5 collectively forms, cooling blower can be set on baffle 5 or cooling blower is arranged on feed belt
Side, heat exchanger can be set on baffle 5, when conveying device is other conveyers, delivery section 4 or other conveyers
Hopper, cooling blower, which can be set, holds the top of sewage sludge powder in sewage sludge powder space in hopper, and heat exchanger can be set
In hopper or some or all of of hopper is heat exchanger.
Specifically, conveying the direction of material along delivery section 4, baffle 5 is respectively arranged in the two sides of delivery section 4；It is cooling
Device 2 is arranged on baffle 5；And/or cooling device 2 be it is multiple, multiple cooling devices 2 are evenly distributed along transfer passage.When
When cooling device 2 is negative pressure cooling blower, the suction that the lost pressure cooling blower being uniformly arranged draws fugitive dust is consistent, prevents negative pressure prominent
So increasing causes sewage sludge powder largely to be sucked in the process equipment being connected to negative-pressure air fan air outlet, since we are cold here
But purpose is used after reducing sewage sludge powder, and the powder being sucked away cannot be put into the realization of this purpose,
The cooling device 2 for causing waste, while being uniformly arranged can make the temperature of the sewage sludge powder after cooling consistent, prevent sludge powder
A step process under the influence of last temperature is variant.
Specifically, mesh is distributed on delivery section 4 and/or baffle 5.The size of mesh is less than sewage sludge powder, is equipped with mesh
Delivery section 4 and/or baffle 5 sewage sludge powder can be made to come into full contact with air, cooling effect is more preferable.
Specifically, the cooling transfer structure of sludge further includes charging cloth device, the setting of charging cloth device is conveyed in material
The feed end in channel, charging cloth device is for uniformly conveying material into material conveying passage.Charging cloth device makes sludge
Powder is evenly distributed on the position of material conveying passage carrying material, can make to cool down more uniform.
Specifically, charging cloth device includes feed inlet 6 and the cloth area 7 being connected to feed inlet 6, cloth area 7 and material
Transfer passage is connected, and cloth area 7 is connected with vibrating motor 8, and vibrating motor 8 is for making cloth area 7 generate vibration, so that cloth
The material in area 7 is uniformly distributed the feed end for being delivered to material conveying passage.Cloth area 7 is obliquely installed, the lower end setting in cloth area 7
Right above the feed end of material conveying passage, vibrating motor 8 makes sewage sludge powder uniformly fall into the feed end of material conveying passage,
Sewage sludge powder uniformly transmits in material conveying passage, and cooling effect is more preferable.
Specifically, the cooling transfer structure of sludge further includes discharging screw 9, the discharging setting of screw 9 is defeated in material
The discharge end in channel is sent, discharging screw 9 is used to convey the material sent out from material conveying passage.Discharging screw 9 be
Screw conveyor, screw conveyor are made of screw conveyor ontology, in-out apparatus, driving device three parts, helical feed
The form of machine helicoid has entity spiral and two kinds of belt type spiral, is coupled between each helical axis using flange form, ensure that connection
The interchangeability of axis, easy to repair, screw conveyor cover is tile type and is clamped on casing with cover buckle, if leakproofness need to be improved
Can, user can be voluntarily between cover and casing plus waterproof canvas, screw conveyor, discharge port can for square discharge port,
Hand propelled discharge port, rack-and-pinion discharge port, by user use site body upper opening weld, screw machine ontology by cephalomere,
Middle node, periproct three parts composition, are provided with branch thrust bearing in spiral conveyor joint and bear axial force, in middle node and periproct
Built-in useful bearing supports helical axis, in addition, being also equipped with the transverse bearing being axially movable in screw conveyor periproct to mend
Repay the error of spiral shaft length and the variation of adaptive temperature, screw conveyor can it is horizontal, tilt or be vertically arranged, can will
Sewage sludge powder after cooling is sent to be arranged in the equipment of different height with material conveying passage.
On the other hand, the utility model embodiment also provides a kind of sludge treatment device, which includes upper
State the cooling transfer structure of sludge of any one.Wherein the cooling transfer structure of sludge is used for dry to heat in sludge treatment technique process
Sewage sludge powder after change cools down, so that sewage sludge powder can be put into resource utilization processing.
A kind of sludge that the utility model embodiment proposes cools down transfer structure and sludge treatment device, the dirt after heat drying
Mud enters in the cooling transfer structure of the sludge to be cooled down while transmission, specifically, the sludge after heat drying enters transmission
It is transmitted in the material conveying passage of device, sludge is sent to progress next step processing in next structure；The sludge is cold
But transfer structure further includes cooling device, and cooling device is connected with material conveying passage, and cooling device is to material conveying passage
In heat drying after sludge cool down, prevent high temperature powder shape sludge burn in the process of next step even it is quick-fried
It is fried, it causes damages.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation
Or replacement, it should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should be with the power
Subject to the protection scope that benefit requires.
Claims (9)
1. a kind of cooling transfer structure of sludge characterized by comprising
Transmission device, the transmission device have material conveying passage；
Cooling device, the cooling device are connected with the material conveying passage, for reducing in the material conveying passage
Air themperature；
The transmission device includes driving mechanism and delivery section, has the space that contains for holding material in the delivery section, described
Containing space is the material conveying passage；
The cooling device is located at the top of the delivery section.
2. the cooling transfer structure of sludge according to claim 1, which is characterized in that
The cooling device includes cooling blower and/or heat exchanger.
3. the cooling transfer structure of sludge according to claim 2, which is characterized in that the cooling blower is negative pressure cooling wind
Machine.
4. the cooling transfer structure of sludge according to claim 1, which is characterized in that
Along the direction of delivery section conveying material, baffle is respectively arranged in the two sides of the delivery section；The cooling dress
It installs on the baffle；
And/or
The cooling device be it is multiple, multiple cooling devices are evenly distributed along the transfer passage.
5. the cooling transfer structure of sludge according to claim 4, which is characterized in that
Mesh is distributed on the delivery section and/or the baffle.
6. the cooling transfer structure of sludge according to claim 1, which is characterized in that further include:
The feed end of the material conveying passage, the charging cloth is arranged in charging cloth device, the charging cloth device
Device is for uniformly conveying material into the material conveying passage.
7. the cooling transfer structure of sludge according to claim 6, which is characterized in that
The charging cloth device includes feed inlet and the cloth area being connected to the feed inlet, the cloth area and the material
Transfer passage is connected, and the cloth area is connected with vibrating motor, and the vibrating motor is vibrated for generating the cloth area,
So that the material in the cloth area is uniformly distributed the feed end for being delivered to the material conveying passage.
8. the cooling transfer structure of sludge according to claim 1, which is characterized in that further include:
Discharge screw, and the discharge end of the material conveying passage, the discharging spiral is arranged in the discharging screw
Device is used to convey the material sent out from the material conveying passage.
9. a kind of sludge treatment device, which is characterized in that including the cooling transmission knot of sludge of any of claims 1-8
Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821709083.1U CN209098489U (en) | 2018-10-22 | 2018-10-22 | The cooling transfer structure of sludge and sludge treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821709083.1U CN209098489U (en) | 2018-10-22 | 2018-10-22 | The cooling transfer structure of sludge and sludge treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209098489U true CN209098489U (en) | 2019-07-12 |
Family
ID=67155907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821709083.1U Active CN209098489U (en) | 2018-10-22 | 2018-10-22 | The cooling transfer structure of sludge and sludge treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209098489U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115121087A (en) * | 2022-06-13 | 2022-09-30 | 浙江春晖环保能源股份有限公司 | Peculiar smell prevention conveying device and conveying method for waste incineration power plant |
-
2018
- 2018-10-22 CN CN201821709083.1U patent/CN209098489U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115121087A (en) * | 2022-06-13 | 2022-09-30 | 浙江春晖环保能源股份有限公司 | Peculiar smell prevention conveying device and conveying method for waste incineration power plant |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103145307B (en) | High temperature carbonization system of sludge and carbonization process | |
| CN207081009U (en) | A kind of residents in rural community pyrolysis gasification system | |
| KR100935446B1 (en) | Method of device for high water content of drying and carbonizing | |
| CN102889599B (en) | Wet sewage sludge combustion furnace | |
| KR101175106B1 (en) | Organic waste recycling system using direct drying method | |
| CN104478191A (en) | Solar sludge drying treatment device and solar sludge drying treatment process | |
| KR101232058B1 (en) | Organic waste recycling system using twice drying method | |
| CN105523699A (en) | Sludge drying and carbonizing device and technology | |
| KR102235558B1 (en) | Hybrid recycling system for fuelizion and ferment of organic substance | |
| WO2019050431A1 (en) | Method for utilizing solid carbon-containing waste by pyrolysis and waste processing complex for implementing same | |
| CN105371283A (en) | Sludge drying and incinerating process | |
| KR20020043526A (en) | Organic / Inorganic Sludge Dryer | |
| KR101272123B1 (en) | Organic waste recycling system | |
| KR0162130B1 (en) | Apparatus and method of wastes to produce solid fuel | |
| KR100851948B1 (en) | Apparatus and method for drying organic sludge | |
| CN102531317B (en) | Sludge drying system | |
| CN209098489U (en) | The cooling transfer structure of sludge and sludge treatment device | |
| CN102372414A (en) | Method for processing sludge by carbonization and equipment thereof | |
| CN102557378B (en) | Sludge drying process | |
| KR101306083B1 (en) | System for drying sludge using superheated vapor | |
| KR100935447B1 (en) | High water content of drying device | |
| CN206073082U (en) | City rubbish from cooking harmless treatment device | |
| CN104907319A (en) | Garbage disposal device | |
| CN202214277U (en) | Sludge drying system | |
| KR100923032B1 (en) | Organic waste treatment system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |