CN108285258A - Sludge drying processing device and its working method - Google Patents
Sludge drying processing device and its working method Download PDFInfo
- Publication number
- CN108285258A CN108285258A CN201810160815.4A CN201810160815A CN108285258A CN 108285258 A CN108285258 A CN 108285258A CN 201810160815 A CN201810160815 A CN 201810160815A CN 108285258 A CN108285258 A CN 108285258A
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- China
- Prior art keywords
- sludge
- shell
- discharge nozzle
- chain
- pressure roller
- 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.)
- Pending
Links
- 239000010802 sludge Substances 0.000 title claims abstract description 131
- 238000001035 drying Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims description 13
- 238000005096 rolling process Methods 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims abstract description 3
- 238000007664 blowing Methods 0.000 claims abstract 2
- 230000007306 turnover Effects 0.000 claims description 27
- 230000005540 biological transmission Effects 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 7
- 230000005484 gravity Effects 0.000 claims description 6
- 238000004080 punching Methods 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 230000002045 lasting effect Effects 0.000 description 2
- 241001504664 Crossocheilus latius Species 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The present invention relates to a kind of sludge drying processing devices comprising the feed pipe and discharge nozzle being set on sealing shell are equipped with a pair of of pressure roller in shell, and the blocky sludge entered from feed pipe is suitable for by this to being discharged after the rolling of pressure roller, from discharge nozzle；It is sealedly connected with air inlet pipe and exhaust pipe on shell, enters the hot wind in shell suitable for blowing over the sludge after pressure roller rolls, being discharged from exhaust pipe from air inlet pipe；So that blocky sludge is become flat or plate sludge, increases the contact area of sludge and the hot wind entered by air inlet pipe, improve drying efficiency of the hot wind to sludge.
Description
Technical field
The present invention relates to a kind of sludge drying processing devices, sludge can be dried processing and its working method.
Background technology
Sludge drying processing device or dehumidification device in the prior art remove the wet mud on conveyer belt using hot wind
Wet process reduces sludge moisture content in the block, and sludge is made to be convenient for the processing again in later stage.However, existing drying sludge processing dress
It sets and the sludge on conveyer belt is brushed using hot wind to achieve the purpose that dry sludge, since sludge is at block structure, be
Make sludge rapid draing in the transmit process of conveyer belt, the temperature or air quantity that improve hot wind is needed, to increase energy
The consumption in source.
Invention content
Technical problem to be solved by the invention is to provide a kind of sludge drying processing devices, improve sludge removal moisture drying
Efficiency and its working method.
In order to solve the above technical problem, the present invention provides a kind of sludge drying processing devices：On sealing shell
Feed pipe and discharge nozzle, shell is interior to be equipped with a pair of of pressure roller, and the blocky sludge entered from feed pipe is suitable for passing through the stone roller to pressure roller
It is discharged after pressure, from discharge nozzle；Air inlet pipe and exhaust pipe are sealedly connected on shell, the hot wind entered in shell from air inlet pipe is suitable for
It blows over the sludge after pressure roller rolls, be discharged from exhaust pipe.
The side of the pair of pressure roller is equipped with the forming sludge after being suitable for rolling pressure roller into the punching machine of eleven punch 11.
The punching machine includes by the chain of chain wheel drive, and the chain and the perforation sprocket wheel coordinated with it are suitable for dropping down onto
Forming sludge on chain is into eleven punch 11.
It is multiple rows of chain with multiple rows of toothed wheel transmission cooperation that the perforation sprocket wheel, which has multiple rows of toothed wheel, the chain,
Item.
Air inlet pipe is located at the top of shell, and exhaust pipe is located at the bottom of shell.
The sealed bottom of discharge nozzle and shell connects, and exhaust pipe is set on the side wall of discharge nozzle being located at outside shell, exhaust
One end of pipe is tightly connected with discharge nozzle.
Be equipped in the feed pipe and discharge nozzle suitable for material, set the gas of flow velocity by when automatically turn on closing for nozzle
It attaches together and sets.
The closing device includes the turnover panel in the pipeline of feed pipe and discharge nozzle, which is suitable for passing through rotary shaft
Be rotatably assorted in pipeline, between the turnover panel and pipe end equipped with no material or set the gas of flow velocity by when, be suitable for driving
Dynamic turnover panel rotates and closes the spring of nozzle.
The working method of the sludge drying processing device, including：Blocky sludge enters feed pipe, in the gravity of sludge
Under effect, overcome the elastic force of spring one and rotate and open turnover panel one, blocky sludge drops down onto on the conveyer belt of transmission device, by transmitting
The blocky sludge of band driving enters between upper and lower pressure roller, under the rolling of upper and lower pressure roller, blocky sludge become as shown in the figure flat
Flat-shaped plate sludge, rotation upper and lower pressure roller effect under, plate sludge by it is lasting push move right, plate sludge move
The upper side by guide plate and table top is moved, then plate sludge enters the top surface of chain, under the driving of mobile chain, plate
Shape sludge is pierced by one under the apertures effect of the external tooth and chain of perforation sprocket wheel by perforation sprocket wheel on plate sludge
The venthole of group marshalling, as shown, plate sludge is processed to sludge with holes, sludge with holes under the driving of chain,
It falls on the turnover panel two in discharge nozzle, under the action of sludge gravity, the elastic force of spring two, turnover panel two is overcome to surround rotary shaft two
Rotation, to open discharge nozzle, sludge is discharged from the lower end of discharge nozzle.In above process, hot wind enters shell from air inlet pipe
Inner cavity and the sludge of its various places inside is dried, hot wind from the exhaust pipe of discharge nozzle side be discharged.
Compared with the existing technology, what the present invention had has the technical effect that：
1）The present invention compared with the existing technology, using a pair of of pressure roller rolls the blocky sludge entered from feed pipe, makes block
Shape sludge becomes flat or plate sludge, the contact area of sludge and the hot wind entered by air inlet pipe is increased, identical
Heated-air drying under the conditions of, improve drying efficiency of the hot wind to sludge, the moisture in sludge made to be rapidly evaporated.
2）The punching machine can make sludge and hot wind contact area again to flat or plate sludge into eleven punch 11
It improves, further improves the speed of moisture evaporation in sludge, improve drying efficiency of the hot wind to sludge.
3）Using the chain by chain wheel drive, and the perforation sprocket wheel with chain drive cooperation, it can be continuously to warp
The flat or plate sludge that pressure roller rolls improves the speed and efficiency of perforation into eleven punch 11.
4）Using with multiple rows of toothed wheel perforation sprocket wheel and multiple rows of chain drive coordinate, make flat or plate sludge
On the number of holes be multiplied, further improve the speed and efficiency of perforation, be conducive to improve drying of the hot wind to sludge
Efficiency.
5）Temperature is higher, and gas density is smaller, since the gas in shell carries out heat exchange with shell or sludge, so from
The density that air inlet pipe enters the hot wind in shell is less than original gas density in shell, so entering in shell from air inlet pipe
Hot wind can rise to the top of shell inner cavity first.Generally air inlet pipe is arranged in shell for sludge drying mechanism in the prior art
Exhaust pipe is arranged at the top of shell for bottom, and the hot wind into shell inner cavity rises very rapidly up to top and is discharged from exhaust pipe,
The residence time is short in chamber inside the shell for hot wind, and hot wind carries out heat exchange with sludge and the time dehumidified to it is short, makes in sludge
Moisture is not easy to evaporate.In the present invention, air inlet pipe is set to the top of shell, exhaust pipe is set to the bottom of shell, from into
Tracheae enters the hot wind of shell inner cavity, and residence time is longer in the lumen, keeps hot wind and the time of sludge heat exchange longer, carries
The evaporation rate of moisture, is conducive to the drying efficiency for improving sludge in high sludge.
6）Exhaust pipe is set in the discharge nozzle of outer casing bottom, shell inner cavity can be entered with sludge is to from discharge nozzle discharge
It is all contacted with hot wind during only, further extends the time that sludge carries out heat exchange with hot wind, improve water in sludge
The evaporation efficiency divided, is conducive to sludge and more quickly dries.
7）Using closing device can feed pipe and discharge nozzle do not have material or set flow velocity gas by when close
Nozzle, reduce shell inner cavity in hot wind leakage or inner cavity in heat distribute outward caused by thermal loss.
8）Closing device is using rotatable turnover panel and spring in pipeline, and simple in structure, reliability is high, saves the dress
The manufacturing cost set.
Description of the drawings
In order to clearly illustrate the innovative principle of the present invention and its technical advantage compared to the existing product, below by way of attached
Figure illustrates possible embodiment by the non-limiting examples of the application principle.In figure：
Fig. 1 is the schematic diagram of the sludge drying processing device of the present invention；
Fig. 2 is the vertical view of plate sludge in the present invention；
Fig. 3 is the vertical view of sludge with holes in the present invention；
Fig. 4 is the structural schematic diagram of closing device in feed pipe in the present invention；
Fig. 5 is the structural schematic diagram of closing device in discharge nozzle in the present invention；
Fig. 6 is the schematic diagram of sludge drying processing device in the embodiment of the present invention 3；
Fig. 7 is the structural schematic diagram of each sprocket wheel in the embodiment of the present invention 4；
Fig. 8 is the structural schematic diagram of chain in the embodiment of the present invention 4；
Fig. 9 is the vertical view of porous sludge in the embodiment of the present invention 4.
Specific implementation mode
Embodiment 1
As shown in Figs. 1-5, sludge drying processing device of the invention, including：Shell 1, feed pipe 2, air inlet pipe 3, transmission device
4, blocky sludge 5, upper pressure roller 6, lower compression roller 7, guide plate 8, shaft 9, plate sludge 10, table top 11, drive sprocket 12, driven chain
Wheel 13, chain 14, sprocket wheel 15 of perforating, sludge 16 with holes, discharge nozzle 17, exhaust pipe 18, venthole 19, the first toothed wheel 21, the
Two toothed wheels 22, first row hole 23, second row hole 24, first row venthole 25, second row venthole 26.
It is sealedly connected with feed pipe 2 at the top of the left end of closed shell 1, one end of feed pipe 2 is stretched into shell 1, another
One end is located at outside shell 1, a closing device is equipped in feed pipe 2, which includes the rotary shaft one being equipped in feed pipe 2
201, turnover panel 1 is rotatably assorted in feed pipe 2 by rotary shaft 1 and suitable for closing feed pipe 2 or opening feed pipe
2, it is connected with the spring 1 in tensional state between the downside and the lower end of feed pipe 2 of turnover panel 1, in spring
Under one 202 pulling force effect, turnover panel 1 by tilt close in a manner of be set in feed pipe 2, when material is fallen in turnover panel one
When on 203, in the elastic force for overcoming spring 1, turnover panel 1 rotates around rotary shaft 1 and opens feed pipe 2
Nozzle makes material enter in sludge drying processing device.
1 top of shell on 2 right side of feed pipe is sealedly connected with air inlet pipe 3, and shell 1, inner end are stretched out in the outer end of air inlet pipe 3
It stretches into shell 1.It is equipped with a transmission device 4 in the shell 1 of 2 downside of feed pipe, which will be by feeding by conveyer belt
Pipe 2 drops down onto the packaged sludge 5 on conveyer belt and conveys to the right.A pair of of pressure roller is equipped at the right end of the transmission device 4, respectively on
Pressure roller 6 and lower compression roller 7, for the line of centres of upper and lower pressure roller perpendicular to above-mentioned conveyer belt, the roll surface spacing of upper and lower pressure roller is setting
Value.This is equipped with a guide plate 8 to being equipped with a fixed table top 11, the left end of table top 11 on the right side of pressure roller, and guide plate 8 passes through its right end
Shaft 9 be rotatably assorted in the left end of table top 11.The left end of guide plate 8 is resisted against being located therein for lower compression roller 7 using its gravity
On roll surface on the right side of the heart, the roll surface of the left end and lower compression roller 7 of guide plate 8 is slidably matched.Shaft 9 is located at the left upper end of table top 11,
The top surface of the right end upper side for making guide plate 8 and table top 11 is suitable for seamlessly transitting.The right side of table top be equipped with drive sprocket 12 and from
Movable sprocket 13, chain 14 surround and are driven the outside for being matched with drive sprocket 12 and driven sprocket 13, the top surface of chain 14 and platform
Face 11 is concordant, and the upside of chain 14 is equipped with perforation sprocket wheel 15, and perforation sprocket wheel 15 coordinates with the chain 14 transmission.
1 bottom of shell of 13 downside of driven sprocket is equipped with discharge nozzle 17, and the top of discharge nozzle 17 is concordant with the bottom surface of shell 1
And it is tightly connected, an exhaust pipe 18 is sealedly connected on the side wall of discharge nozzle 17, be located at the discharge nozzle 17 of 18 downside of exhaust pipe
It is inside equipped with a closing device, which includes the rotary shaft 2 1701 being set in discharge nozzle 17, and turnover panel 2 1703 passes through rotation
Shaft 2 1701 is rotatably assorted in discharge nozzle 17 and suitable for closing discharge nozzle 17, the downside of turnover panel 2 1703 and discharge nozzle
The spring 2 1702 in tensional state is connected between 17 lower end, under the pulling force effect of spring 2 1702, turnover panel two
1703 are set in a manner of tilting and closing in discharge nozzle 17, when material is fallen on turnover panel 2 1703 or the gas with certain flow rate
Body by discharge nozzle 17 when, the elastic force of spring 2 1702, turnover panel 2 1703 can be overcome to rotate and open around rotary shaft 2 1701
The nozzle of discharge nozzle 17 makes material or gas are discharged from the nozzle of discharge nozzle 17.As a preferred embodiment, the turnover panel 2 1703 and
Corresponding rotary shaft 2 1701 can be arranged in the discharge nozzle 17 of 18 upside of exhaust pipe.
The course of work of sludge drying processing device of the present invention is：Blocky sludge 5 enters feed pipe 2, in the weight of sludge
Under force effect, overcome the elastic force of spring 1 and rotate and open turnover panel 1, blocky sludge drops down onto the conveyer belt of transmission device 4
On, between entering upper and lower pressure roller by belt-driven bulk sludge, under the rolling of upper and lower pressure roller, blocky sludge becomes such as figure
Flat plate sludge 10 shown in 2, rotation upper and lower pressure roller effect under, plate sludge 10 by it is lasting push move right
Dynamic, plate sludge 10 moves through the upper side of guide plate 8 and table top 11, and then plate sludge 10 enters the top surface of chain 14,
Under the driving of mobile chain 14, the process perforation sprocket wheel 15 of plate sludge 10, in external tooth and the chain 14 of perforation sprocket wheel 15
Under apertures effect, the venthole 19 of one group of marshalling is pierced by plate sludge 10, as shown in figure 3, plate sludge 10
It is processed to sludge 16 with holes, sludge 16 with holes is fallen under the driving of chain 14 on the turnover panel 2 1703 in discharge nozzle 17,
Under the action of sludge gravity, overcome the elastic force of spring 2 1702, turnover panel 2 1703 is rotated around rotary shaft 2 1701, to open
Discharge nozzle 17, sludge are discharged from the lower end of discharge nozzle 17.In above process, hot wind enters the inner cavity of shell 1 simultaneously from air inlet pipe 3
The sludge of its various places inside is dried, hot wind is discharged from the exhaust pipe 18 of 17 side of discharge nozzle.
Embodiment 2
Relative to embodiment 1, the guide plate 8, shaft 9 and table top 11 can be substituted by belt conveyor, by upper and lower
Plate sludge 10 after pressure roller is delivered to the top surface of chain 14 by belt conveyor.
Embodiment 3
Relative to embodiment 1, as shown in fig. 6, eliminating the guide plate 8, shaft 9 and table top 11, drive sprocket 12, driven chain
Wheel 13 and chain 14 are disposed adjacently in the side of upper and lower pressure roller, and the plate sludge 10 after upper and lower pressure roller is directly entered chain
The top surface of item 14.
Embodiment 4
Relative to embodiment 1, as Figure 7-8, the drive sprocket 12, driven sprocket 13 and perforation sprocket wheel 15 are respectively provided with double
Toothed wheel, i.e. the first toothed wheel 21 and the second toothed wheel 22 are arranged, the chain 14 with the transmission cooperation of each sprocket wheel is that have double hole
Double strand chain, that is, have first row hole 23 and second row hole 24.Perforation of the plate sludge 10 in by the present embodiment
After sprocket wheel 15, become porous sludge 161 as shown in Figure 9, which has first row venthole 25 and second row venthole
26, to make porous sludge 161 that there are more exposed surfaces.
Obviously, the above embodiment is merely an example for clearly illustrating the present invention, and is not to the present invention
The restriction of embodiment.For those of ordinary skill in the art, it can also be made on the basis of the above description
Its various forms of variation or variation.There is no necessity and possibility to exhaust all the enbodiments.And these belong to this hair
The obvious changes or variations that bright spirit is extended out are still in the protection scope of this invention.
Claims (9)
1. a kind of sludge drying processing device, it is characterised in that including：Set on sealing shell（1）On feed pipe（2）And discharging
Pipe（17）, shell（1）It is interior to be equipped with a pair of of pressure roller, from feed pipe（2）The blocky sludge entered is suitable for rolling pressure roller by this
Afterwards, from discharge nozzle（17）Discharge；Shell（1）On be sealedly connected with air inlet pipe（3）And exhaust pipe（18）, from air inlet pipe（3）Into
Shell（1）Interior hot wind is suitable for blowing over the sludge after pressure roller rolls, from exhaust pipe（18）Discharge.
2. sludge drying processing device according to claim 1, it is characterised in that：The side of the pair of pressure roller is equipped with suitable
After being rolled to pressure roller forming sludge into eleven punch 11 punching machine.
3. sludge drying processing device according to claim 2, it is characterised in that：The punching machine includes being driven by sprocket wheel
Dynamic chain（14）, the chain（14）And the perforation sprocket wheel coordinated with it（15）Suitable for dropping down onto chain（14）On forming sludge
Into eleven punch 11.
4. sludge drying processing device according to claim 3, it is characterised in that：The perforation sprocket wheel（15）With multiple rows of
Toothed wheel, the chain（14）It is multiple rows of chain with multiple rows of toothed wheel transmission cooperation.
5. sludge drying processing device according to claim 4, it is characterised in that：Air inlet pipe（3）Positioned at shell（1）Top
Portion, exhaust pipe（18）Positioned at shell（1）Bottom.
6. sludge drying processing device according to claim 5, it is characterised in that：Discharge nozzle（17）With shell（1）Bottom
Portion is tightly connected, exhaust pipe（18）Set on discharge nozzle（17）Be located at shell（1）On outer side wall, exhaust pipe（18）One end with
Discharge nozzle（17）It is tightly connected.
7. sludge drying processing device according to claim 6, it is characterised in that：The feed pipe（2）And discharge nozzle
（17）It is interior be equipped with suitable for material, set flow velocity gas by when automatically turn on nozzle closing device.
8. sludge drying processing device according to claim 7, it is characterised in that：The closing device includes being set to charging
Pipe（2）And discharge nozzle（17）Pipeline in turnover panel, which is suitable for being rotatably assorted in pipeline by rotary shaft, the turnover panel and
Between pipe end equipped with no material or set the gas of flow velocity by when, suitable for driving turnover panel rotate and close the bullet of nozzle
Spring.
9. a kind of working method of sludge drying processing device according to claim 1, it is characterised in that including：It is blocky dirty
Mud enters feed pipe, under the gravity of sludge, overcomes the elastic force of spring one and rotates and open turnover panel one, blocky sludge drops down onto
On the conveyer belt of transmission device, between entering upper and lower pressure roller by belt-driven bulk sludge, under the rolling of upper and lower pressure roller,
Blocky sludge becomes flat plate sludge as shown in the figure, and under the upper and lower pressure roller effect of rotation, plate sludge continued
Push moves right, and plate sludge moves through the upper side of guide plate and table top, and then plate sludge enters the top surface of chain,
Under the driving of mobile chain, plate sludge process perforation sprocket wheel, make in the external tooth of perforation sprocket wheel and the apertures of chain
The venthole of one group of marshalling is pierced by under, on plate sludge, as shown, plate sludge is processed to sludge with holes,
Sludge with holes is fallen under the driving of chain on the turnover panel two in discharge nozzle, under the action of sludge gravity, overcomes spring two
Elastic force, turnover panel two are rotated around rotary shaft two, and to open discharge nozzle, sludge is discharged from the lower end of discharge nozzle；In the above process
In, hot wind enters the inner cavity of shell from air inlet pipe and the sludge of its various places inside is dried, and hot wind is from discharge nozzle side
Exhaust pipe is discharged.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810022877 | 2018-01-10 | ||
| CN2018100228779 | 2018-01-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108285258A true CN108285258A (en) | 2018-07-17 |
Family
ID=62833116
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820273176.8U Active CN208166821U (en) | 2018-01-10 | 2018-02-27 | Sludge drying processing device |
| CN201810160815.4A Pending CN108285258A (en) | 2018-01-10 | 2018-02-27 | Sludge drying processing device and its working method |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820273176.8U Active CN208166821U (en) | 2018-01-10 | 2018-02-27 | Sludge drying processing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN208166821U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109231789A (en) * | 2018-11-28 | 2019-01-18 | 嘉兴市乔兰服饰有限公司 | A kind of printing and dyeing sludge drying and other treatment device |
| CN114477685A (en) * | 2022-02-24 | 2022-05-13 | 湖南福瑞来环保节能科技有限公司 | Self-heating circulation multi-tank nested anaerobic fermentation device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208166821U (en) * | 2018-01-10 | 2018-11-30 | 江苏紫东建筑科技股份有限公司 | Sludge drying processing device |
| CN110204167B (en) * | 2019-07-17 | 2021-10-12 | 太原市润民环保节能有限公司 | Sludge dewatering equipment of integral type |
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| CN109231789A (en) * | 2018-11-28 | 2019-01-18 | 嘉兴市乔兰服饰有限公司 | A kind of printing and dyeing sludge drying and other treatment device |
| CN109231789B (en) * | 2018-11-28 | 2023-12-08 | 台州市路桥方兴混凝土厂 | Printing and dyeing sludge drying treatment device |
| CN114477685A (en) * | 2022-02-24 | 2022-05-13 | 湖南福瑞来环保节能科技有限公司 | Self-heating circulation multi-tank nested anaerobic fermentation device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN208166821U (en) | 2018-11-30 |
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