CN108675606A - A kind of sludge drying device of sewage disposal - Google Patents
A kind of sludge drying device of sewage disposal Download PDFInfo
- Publication number
- CN108675606A CN108675606A CN201810651986.7A CN201810651986A CN108675606A CN 108675606 A CN108675606 A CN 108675606A CN 201810651986 A CN201810651986 A CN 201810651986A CN 108675606 A CN108675606 A CN 108675606A
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- CN
- China
- Prior art keywords
- sludge
- cabinet
- box
- mud
- sewage disposal
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- 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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Classifications
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- 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
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- 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 invention discloses a kind of sludge drying devices of sewage disposal, including supporting table, drying box and cabinet, supporting table lower end four corners are provided with support leg, the support leg lower end is provided with idler wheel, it is provided with support plate in the middle part of the support leg, the support plate upper center is provided with storage mud box, and filter bowl is provided in one side wall in the storage mud box.Advantageous effect is：By the way that motor two, sludge pump and filter bowl is arranged, impurity in sludge can fully be filtered while automatic charging, it can prevent the generation of clogging, ensure being smoothed out for feeding process, by the way that motor one, transmission shaft is arranged, dials mud stick, group mud plate, sludge can be uniformly laid on feeding disk before baking, to increase the heating surface area of sludge, the drying efficiency of sludge can be improved, by the way that hygrometric head, display screen is arranged, the humidity in drying box can be detected the moment and shown on a display screen, the drying effect of sludge can be intuitively obtained.
Description
Technical field
The present invention relates to technical field of sewage, and the present invention relates to a kind of sludge drying devices of sewage disposal.
Background technology
Sewage disposal refers to the water quality requirement for being discharged into a certain water body to make sewage reach or reusing, and is carried out only to it
The process of change.Sewage disposal is widely used in building, agricultural, traffic, the energy, petrochemical industry, environmental protection, urban landscape, medical treatment, food and drink
Etc. every field, also come into the daily life of common people more and more.The production of sludge is often had in sewage disposal process
It is raw, in order to ensure the recycling for being smoothed out and realizing sludge of sewage disposal process, generally requires and sludge is dried
Processing, and sludge drying device can be used when being dried to sludge, general sludge drying device is complicated, and behaviour's group is numerous
It is trivial, to sludge be treated Cheng Zhongduo be by manually being operated to carry out feeding, often can be because miscellaneous in sludge in feeding process
Matter is excessive, and causes blockages, and its interior sludge is packed together more during the drying process, and sludge heating surface area is small, drying
Inefficiency, the drying effect of sludge can not be obtained intuitively after the drying in addition.
Invention content
The purpose of the present invention is that solve the above-mentioned problems and provides a kind of sludge drying device of sewage disposal.
The present invention is achieved through the following technical solutions above-mentioned purpose：
A kind of sludge drying device of sewage disposal, including supporting table, drying box and cabinet, the supporting table lower end four
Support leg is provided at angle, the support leg lower end is provided with idler wheel, support plate, the support are provided in the middle part of the support leg
Plate upper center is provided with storage mud box, is provided with filter bowl in the storage mud box in one side wall, and middle part is provided in the storage mud box
Sludge, the supporting table one side wall middle part are nested with push rod, and the supporting table upper center is embedded with the drying box, the baking
It is hinged with the cabinet in the middle part of dry case one side wall, is provided with operation panel in the middle part of the cabinet one side wall, on the operation panel
It is provided with display screen, switch one, switch two, is provided with extraction mud pipe in the middle part of the cabinet top and bottom, upper end in the cabinet
It is provided with power supply, timer, heating box, heating wire, bottom end is provided with motor two, sludge pump, wind turbine, the baking in the cabinet
It is provided with feeding disk in the middle part of another side wall lower ends of dry case, forms kerve in the middle part of the feeding disk one side wall, under the feeding disk
End both sides are hinged with pulley, form sliding slot in the drying box at the pulley, machine described in face in the drying box
Air hole is formed in the middle part of case side wall, the drying box upper center is provided with shaft coupling, and the shaft coupling upper end is provided with electricity
Machine one, the drying box upper end are provided with enters mud pipe far from the shaft coupling side, are arranged at one jiao of top in the drying box
There are hygrometric head, the interior middle part of the drying box to be provided with transmission shaft, be provided in the middle part of the transmission shaft and dial mud stick, the transmission shaft bottom
End, which is provided with, dials mud plate.
Further, on the supporting table, the idler wheel is hinged in the support leg for the support leg welding.
Further, the support plate is welded in the support leg, and the storage mud box is embedded in the support plate, institute
Filter bowl is stated to be fixed on the storage mud box by card slot.
Further, on the supporting table, the operation panel is embedded on the cabinet, described for the push rod welding
Display screen is fixed on the operation panel upper center by card slot, and the switch one is hinged on immediately below the display screen, institute
Switch two is stated to be hinged on immediately below the switch one.
Further, the power supply is fixed on upper end side in the cabinet by card slot, and the timer passes through bolt
It is fastened on upper center in the cabinet, the model TW-260 of the timer, the heating box is welded on the machine
The upper end other side in case, the heating wire take shape on the inner wall of the heating box bottom end.
Further, the motor two is hinged on bottom end side in the cabinet, and the sludge pump is fixed on by card slot
Center bottom in the cabinet, the wind turbine are welded on the bottom end other side in the cabinet.
Further, the shaft coupling is bolted in the drying box, and the motor one is hinged on described
On axis device, the enters mud pipe takes shape in the drying box.
Further, the hygrometric head is embedded on the drying chamber interior wall.
Further, described transmission shaft one end is hinged on the shaft coupling.
Further, described group of mud stick is welded on the transmission shaft, and described group of mud plate is embedded on the transmission shaft.
The present invention also provides a kind of application methods of the sludge drying device of sewage disposal, are applied to a kind of above-mentioned sewage
In the sludge drying device of processing, the feeding disk is fixed in the drying box first using preceding, is then pressed described
Switch one makes the power supply, the motor one, the motor two work asynchronously, and the motor two can pass through the pumping mud after working
The sludge in the storage mud box is extracted into the drying box by pipe, and the filter bowl can be during taking out mud by the sludge
In impurity fully filtered, the blocking of the extraction mud pipe can be prevented, it is ensured that take out mud process and be smoothed out, the motor one
Described group of mud stick and described group of mud plate rotation can be driven after work by the transmission shaft, it can be described after described group of mud stick rotation
Sludge breaks up the sludge when falling, and described group of mud plate can be after the sludge drops on the feeding disk, by the dirt
Mud is uniformly spread out, and to increase the heating surface area of sludge, after the sludge is added, pressing the switch one again makes the motor
One and the motor two be stopped, at the same time pressing the switch two makes the display screen, the timer, the wind
Machine, the heating wire and hygrometric head synchronous working, the runs or can show the time, institute on the display screen
Gas can be pumped into the heating box after stating blower fan work, gas is made to heat up under the action of the heating wire, heated up
Gas afterwards enters eventually into the drying box, and then is dried to the sludge in the drying box, drying course
Described in the steam that generates can be discharged the drying box by the air hole, the hygrometric head can during the drying process the moment examine
The humidity surveyed in the drying box simultaneously shows that the wind turbine stops at the end of timing on the display screen on the display screen
Work.
The beneficial effects of the present invention are：
1：By the way that motor two, sludge pump and filter bowl is arranged, impurity in sludge can be subjected to abundant mistake while automatic charging
Filter, can prevent the generation of clogging, it is ensured that feeding process is smoothed out；
2：By the way that motor one, transmission shaft is arranged, dials mud stick, group mud plate, can sludge be uniformly laid on feeding before baking
On disk, to increase the heating surface area of sludge, the drying efficiency of sludge can be improved；
3：By setting hygrometric head, display screen, the humidity in drying box can be detected the moment and shown on a display screen, it can be straight
Sight obtains the drying effect of sludge.
Description of the drawings
Fig. 1 is a kind of front view of the sludge drying device of sewage disposal of the present invention；
Fig. 2 is a kind of right view of the sludge drying device of sewage disposal of the present invention；
Fig. 3 be a kind of sewage disposal of the present invention sludge drying device in store up mud box interior views；
Fig. 4 be a kind of sewage disposal of the present invention sludge drying device in drying box interior views.Attached drawing mark
Note is described as follows：
1, motor one；2, shaft coupling；3, drying box；301, mud stick is dialled；302, hygrometric head；303, mud plate is dialled；304, it is driven
Axis；4, air hole；5, supporting table；6, push rod；7, support leg；8, idler wheel；9, support plate；10, mud box is stored up；1001, sludge；
1002, filter bowl；11, sliding slot；12, pulley；13, kerve；14, feeding disk；15, switch two；16, switch one；17, display screen；18、
Operation panel；19, cabinet；20, extraction mud pipe；21, enters mud pipe；22, timer；23, power supply；24, motor two；25, sludge pump；
26, wind turbine；27, heating wire；28, heating box.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments, is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As Figure 1-Figure 4, a kind of sludge drying device of sewage disposal, including supporting table 5, drying box 3 and cabinet
19,5 lower end four corners of supporting table are provided with support leg 7, and support leg 7 can be that supporting table 5 provides reliable support, it is ensured that support
The stability of platform 5,7 lower end of support leg are provided with idler wheel 8, supporting table 5 can be made to move by idler wheel 8, and then realize drying box 3
Convenient movement, 7 middle part of support leg are provided with support plate 9, and support plate 9 can be that storage mud box 10 provides reliable support, and then ensures
The stability of mud box 10 is stored up, 9 upper center of support plate is provided with storage mud box 10, stores up in mud box 10 and be provided with filter bowl in one side wall
1002, filter bowl 1002 can effectively prevent extraction mud pipe 20 to block during taking out mud, it is ensured that take out being smoothed out for mud process, store up
Middle part is provided with sludge 1001 in mud box 10, and push rod 6 is nested in the middle part of 5 one side wall of supporting table, can pushing rolling wheels 8 by push rod 6
It rolls, 5 upper center of supporting table is embedded with drying box 3, and cabinet 19,19 one side wall of cabinet are hinged in the middle part of 3 one side wall of drying box
Middle part is provided with operation panel 18, and display screen 17, switch 1, switch 2 15,19 upper end of cabinet are provided on operation panel 18
Lower end middle part is provided with extraction mud pipe 20, upper end is provided with power supply 23, timer 22, heating box 28, heating wire 27 in cabinet 19,
Bottom end is provided with motor 2 24, sludge pump 25, wind turbine 26 in cabinet 19, and feeding is provided in the middle part of 3 another side wall lower ends of drying box
Disk 14,14 one side wall of feeding disk middle part form kerve 13, and 14 lower end both sides of feeding disk are hinged with pulley 12, pass through 13 He of kerve
Pulley 12 can easily take out feeding disk 14 out of the drying box 3, and then realize convenient feeding, close to sliding in drying box 3
It takes turns and forms sliding slot 11 at 12, form air hole 4 in the middle part of 19 side wall of face cabinet in drying box 3, the steam in drying box 3 can
It is discharged in time by the air hole 4,3 upper center of drying box is provided with shaft coupling 2, and 2 upper end of shaft coupling is provided with motor one
1,3 upper end of drying box is provided with enters mud pipe 21 far from 2 side of shaft coupling, and hygrometric head is provided at one jiao of top in drying box 3
302, hygrometric head 302 can detect the humidity in drying box 3 moment and be shown on the display screen 17, intuitively to obtain sludge
1001 drying effect, the interior middle part of drying box 3 are provided with transmission shaft 304, and transmission shaft 304, which can drive, dials mud stick 301 and group mud plate
303 rotations, 304 middle part of transmission shaft, which is provided with, dials mud stick 301, and sludge 1001 can be filled when sludge 1001 falls by dialling mud stick 301
Divide and break up, 304 bottom end of transmission shaft, which is provided with, dials mud plate 303, and dial mud plate 303 sludge 1001 can uniformly spread when sludge 1001 falls
It is located on feeding disk 14.
In the present embodiment, support leg 7 is welded in supporting table 5, and idler wheel 8 is hinged in support leg 7.
In the present embodiment, support plate 9 is welded in support leg 7, and storage mud box 10 is embedded in support plate 9, and filter bowl 1002 is logical
Card slot is crossed to be fixed on storage mud box 10.
In the present embodiment, push rod 6 is welded in supporting table 5, and operation panel 18 is embedded on cabinet 19, and display screen 17 passes through
Card slot is fixed on 18 upper center of operation panel, and switch 1 is hinged on immediately below display screen 17, and switch 2 15 is hinged on switch
Immediately below one 16.
In the present embodiment, power supply 23 is fixed on upper end side in cabinet 19 by card slot, and timer 22 is bolted
It is fixed on upper center in cabinet 19, the model TW-260 of timer 22, it is another that heating box 28 is welded on upper end in cabinet 19
Side, heating wire 27 take shape on 28 bottom end inner wall of heating box.
In the present embodiment, motor 2 24 is hinged on bottom end side in cabinet 19, and sludge pump 25 is fixed on cabinet by card slot
Center bottom in 19, wind turbine 26 are welded on the bottom end other side in cabinet 19.
In the present embodiment, shaft coupling 2 is bolted in drying box 3, and motor 1 is hinged on shaft coupling 2, into mud
Pipe 21 takes shape in drying box 3.
In the present embodiment, hygrometric head 302 is embedded on 3 inner wall of drying box.
In the present embodiment, 304 one end of transmission shaft is hinged on shaft coupling 2.
It in the present embodiment, dials mud stick 301 and is welded on transmission shaft 304, dial mud plate 303 and be embedded on transmission shaft 304.
The present invention also provides a kind of application methods of the sludge drying device of sewage disposal：Using preceding first by feeding disk
14 are fixed in drying box 3, then so that power supply 23, motor 1, motor 2 24 is worked asynchronously by lower switch 1, motor 2 24
The sludge 1001 stored up in mud box 10 can be extracted into drying box 3 by extraction mud pipe 20 after work, filter bowl 1002 can be in the mistake for taking out mud
The impurity in sludge 1001 is fully filtered in journey, the blocking of extraction mud pipe 20 can be prevented, it is ensured that take out mud process it is smooth into
Row, motor 1 can be driven to dial mud stick 301 and dial mud plate 303 by transmission shaft 304 after working and rotated, and dialling can after mud stick 301 rotates
Sludge 1001 is broken up when sludge 1001 falls, dialling mud plate 303 can be after sludge 1001 drops on feeding disk 14, by sludge
1001 uniformly spread out, and to increase the heating surface area of sludge 1001, after sludge 1001 is added, make motor by lower switch 1 again
1 and motor 2 24 be stopped, at the same time make display screen 17, timer 22, wind turbine 26, heating wire 27 by lower switch 2 15
It works asynchronously with hygrometric head 302, timer 22 works or can be shown on display screen 17 time, and wind turbine 26 can be by gas after working
It is pumped into heating box 28, so that gas is heated up under the action of heating wire 27, the gas after heating enters eventually into drying box 3
It is interior, and then the sludge 1001 in drying box 3 is dried, the steam generated in drying course can be discharged by air hole 4 to be dried
Dry case 3, hygrometric head 302 can during the drying process the moment detection drying box 3 in humidity and shown on display screen 17, work as display
Wind turbine 26 is stopped at the end of timing on screen 17.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, and the above embodiments and description only describe the originals of the present invention
Reason, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements
It all fall within the protetion scope of the claimed invention.
Claims (10)
1. a kind of sludge drying device of sewage disposal, it is characterised in that：Including supporting table (5), drying box (3) and cabinet
(19), supporting table (5) lower end four corners are provided with support leg (7), and support leg (7) lower end is provided with idler wheel (8), institute
It states and is provided with support plate (9) in the middle part of support leg (7), support plate (9) upper center is provided with storage mud box (10), the storage mud
Filter bowl (1002) is provided in case (10) interior one side wall, middle part is provided with sludge (1001), the branch in the storage mud box (10)
It is nested with push rod (6) in the middle part of support platform (5) one side wall, supporting table (5) upper center is embedded with the drying box (3), described
It is hinged with the cabinet (19) in the middle part of drying box (3) one side wall, operation panel is provided in the middle part of cabinet (19) one side wall
(18), display screen (17), switch one (16), switch two (15) are provided on the operation panel (18), on the cabinet (19)
Extraction mud pipe (20) is provided in the middle part of end and lower end, the interior upper end of the cabinet (19) is provided with power supply (23), timer (22), heating
Box (28), heating wire (27), the interior bottom end of the cabinet (19) is provided with motor two (24), sludge pump (25), wind turbine (26), described
It is provided with feeding disk (14) in the middle part of another side wall lower ends of drying box (3), kerve is formed in the middle part of feeding disk (14) one side wall
(13), feeding disk (14) the lower end both sides are hinged with pulley (12), on the drying box (3) at the pulley (12) at
Type has a sliding slot (11), and air hole (4), the drying are formed in the middle part of cabinet (19) side wall described in face on the drying box (3)
Case (3) upper center is provided with shaft coupling (2), and shaft coupling (2) upper end is provided with motor one (1), on the drying box (3)
End is provided with enters mud pipe (21) far from the shaft coupling (2) side, and hygrometric head is provided at interior one jiao of the top of drying box (3)
(302), middle part is provided with transmission shaft (304) in the drying box (3), is provided in the middle part of the transmission shaft (304) and dials mud stick
(301), transmission shaft (304) bottom end, which is provided with, dials mud plate (303).
2. a kind of sludge drying device of sewage disposal according to claim 1, it is characterised in that：The support leg
(7) it is welded in the supporting table (5), the idler wheel (8) is hinged in the support leg (7).
3. a kind of sludge drying device of sewage disposal according to claim 1, it is characterised in that：The support plate
(9) it is welded in the support leg (7), the storage mud box (10) is embedded in the support plate (9), and the filter bowl (1002) is logical
Card slot is crossed to be fixed on the storage mud box (10).
4. a kind of sludge drying device of sewage disposal according to claim 1, it is characterised in that：The push rod (6)
It is welded in the supporting table (5), the operation panel (18) is embedded on the cabinet (19), and the display screen (17) passes through
Card slot is fixed on the operation panel (18) upper center, and the switch one (16) is hinged on immediately below the display screen (17),
The switch two (15) is hinged on immediately below the switch one (16).
5. a kind of sludge drying device of sewage disposal according to claim 1, it is characterised in that：The power supply (23)
It is fixed on the interior upper end side of the cabinet (19) by card slot, the timer (22), which is bolted, is fixed on the cabinet
(19) interior upper center, the model TW-260 of the timer (22), the heating box (28) are welded on the cabinet (19)
The interior upper end other side, the heating wire (27) take shape on the inner wall of the heating box (28) bottom end.
6. a kind of sludge drying device of sewage disposal according to claim 1, it is characterised in that：The motor two
(24) it is hinged on the interior bottom end side of the cabinet (19), the sludge pump (25) is fixed on the cabinet (19) interior bottom by card slot
End middle part, the wind turbine (26) are welded on the interior bottom end other side of the cabinet (19).
7. a kind of sludge drying device of sewage disposal according to claim 1, it is characterised in that：The shaft coupling
(2) it is bolted in the drying box (3), the motor one (1) is hinged on the shaft coupling (2), described into mud
Pipe (21) takes shape in the drying box (3).
8. a kind of sludge drying device of sewage disposal according to claim 1, it is characterised in that：The hygrometric head
(302) it is embedded on the drying box (3) inner wall.
9. a kind of sludge drying device of sewage disposal according to claim 1, it is characterised in that：The transmission shaft
(304) one end is hinged on the shaft coupling (2).
10. a kind of sludge drying device of sewage disposal according to claim 1, it is characterised in that：Described group of mud stick
(301) it is welded on the transmission shaft (304), described group of mud plate (303) is embedded on the transmission shaft (304).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810651986.7A CN108675606A (en) | 2018-06-22 | 2018-06-22 | A kind of sludge drying device of sewage disposal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810651986.7A CN108675606A (en) | 2018-06-22 | 2018-06-22 | A kind of sludge drying device of sewage disposal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108675606A true CN108675606A (en) | 2018-10-19 |
Family
ID=63811825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810651986.7A Pending CN108675606A (en) | 2018-06-22 | 2018-06-22 | A kind of sludge drying device of sewage disposal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108675606A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111320353A (en) * | 2020-04-03 | 2020-06-23 | 辽宁省生态环境保护科技中心 | Environment-friendly treatment device and process for sludge in sewage treatment process |
| CN111497001A (en) * | 2020-04-24 | 2020-08-07 | 李东 | Filter material ceramsite, processing system and processing method |
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| CN201000259Y (en) * | 2007-01-26 | 2008-01-02 | 张志霄 | Drying mechanism for axis type stirring sludge multilevel indirect steam back |
| CN101205111A (en) * | 2007-08-17 | 2008-06-25 | 光大环保工程技术(深圳)有限公司 | Sludge drying apparatus and sludge drying method using the same |
| CN106969613A (en) * | 2017-05-04 | 2017-07-21 | 合肥图腾龙企业管理事务所（有限合伙） | A kind of annoying grain drying machine for selecting husk |
| CN107500502A (en) * | 2017-09-21 | 2017-12-22 | 朱玥 | A kind of paper mill sludge, which crushes, dries output device |
| CN206828345U (en) * | 2017-06-08 | 2018-01-02 | 浙江正翰环保科技有限公司 | A kind of sludge drier easy to use |
| CN108178481A (en) * | 2017-12-31 | 2018-06-19 | 王健 | A kind of multi-functional sludge treatment equipment |
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- 2018-06-22 CN CN201810651986.7A patent/CN108675606A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201000259Y (en) * | 2007-01-26 | 2008-01-02 | 张志霄 | Drying mechanism for axis type stirring sludge multilevel indirect steam back |
| CN101205111A (en) * | 2007-08-17 | 2008-06-25 | 光大环保工程技术(深圳)有限公司 | Sludge drying apparatus and sludge drying method using the same |
| CN106969613A (en) * | 2017-05-04 | 2017-07-21 | 合肥图腾龙企业管理事务所（有限合伙） | A kind of annoying grain drying machine for selecting husk |
| CN206828345U (en) * | 2017-06-08 | 2018-01-02 | 浙江正翰环保科技有限公司 | A kind of sludge drier easy to use |
| CN107500502A (en) * | 2017-09-21 | 2017-12-22 | 朱玥 | A kind of paper mill sludge, which crushes, dries output device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111320353A (en) * | 2020-04-03 | 2020-06-23 | 辽宁省生态环境保护科技中心 | Environment-friendly treatment device and process for sludge in sewage treatment process |
| CN111497001A (en) * | 2020-04-24 | 2020-08-07 | 李东 | Filter material ceramsite, processing system and processing method |
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Application publication date: 20181019 |
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