CN112520971A - Sludge treatment system - Google Patents
Sludge treatment system Download PDFInfo
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- CN112520971A CN112520971A CN202011487880.1A CN202011487880A CN112520971A CN 112520971 A CN112520971 A CN 112520971A CN 202011487880 A CN202011487880 A CN 202011487880A CN 112520971 A CN112520971 A CN 112520971A
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- sludge
- spiral extrusion
- liquid medicine
- extrusion column
- treatment system
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- 239000010802 sludge Substances 0.000 title claims abstract description 80
- 239000003814 drug Substances 0.000 claims abstract description 37
- 239000007788 liquid Substances 0.000 claims abstract description 37
- 238000000926 separation method Methods 0.000 claims abstract description 22
- 238000002156 mixing Methods 0.000 claims abstract description 21
- 239000004575 stone Substances 0.000 claims abstract description 16
- 239000004576 sand Substances 0.000 claims abstract description 15
- 238000001125 extrusion Methods 0.000 claims description 52
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 239000010865 sewage Substances 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 239000002002 slurry Substances 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims 1
- 230000018044 dehydration Effects 0.000 abstract description 6
- 238000006297 dehydration reaction Methods 0.000 abstract description 6
- 230000032258 transport Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 230000008676 import Effects 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000005374 membrane filtration Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
Images
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
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/125—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using screw filters
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Treatment Of Sludge (AREA)
Abstract
一种淤泥处理系统，所述淤泥处理系统包括砂石分离模块、药液混合模块、淤泥脱水模块；淤泥依次经过砂石分离模块、药液混合模块、淤泥脱水模块进行处理；其中所述砂石分离模块包括振动筛，振动筛上设有筛网与砂石板，淤泥输送管将淤泥输送到筛网上，泥浆通过筛网的空隙下渗，没通过筛网的砂石经过所述砂石板进入砂石收集袋。
A sludge treatment system, the sludge treatment system comprises a sand and gravel separation module, a liquid medicine mixing module, and a sludge dehydration module; the sludge is processed through the sand and gravel separation module, the liquid medicine mixing module, and the sludge dewatering module in sequence; wherein the sand and gravel The separation module includes a vibrating screen. The vibrating screen is provided with a screen mesh and a sandstone plate. The sludge conveying pipe transports the sludge to the screen mesh. The mud infiltrates through the gaps of the screen mesh. Stone collection bag.
Description
Technical Field
The invention relates to the field of urban pipeline dredging, in particular to a sludge treatment system.
Background
Common sediments of the sludge urban pipeline are mainly distributed in urban pavement sewers, reservoirs, sewage pipes and other places, and contain a large amount of clay, gravels, organic sediments and other impurities, the sludge is easily attached to the inner wall of the pipeline to form a siltation layer, so that the water body of the sewer pipeline is prevented from flowing, and organic substances contained in the sludge can ferment and deteriorate under the action of the environment, breed bacteria and pollute the environment. Along with the urban development of China, the dredging work of underground water channels is more important, the sludge cleaned from the pipelines is quickly and efficiently treated, and the method has important significance for the construction work of urban environments. Although the method for directly sucking and transporting the sludge by using the pumping truck is simple and direct, the sludge contains a large amount of moisture, the transportation pressure and the cost are huge, and the sludge pollutes the environment, so that the transportation tightness of the sludge truck has high requirements, and the treatment cost is further increased.
Patent No. CN201921696381.6 proposes a box-shaped silt processing structure, which achieves the purpose of processing silt through stirring, elutriation and biological membrane filtration precipitation, but silt contains a large amount of sand and stone, if sand and stone are not separated, the whole processing mechanism is damaged, the silt processing efficiency is also influenced, and only natural precipitation is relied on, the efficiency is low, and the box-shaped silt processing structure is not suitable for processing a large amount of silt.
More specifically, the disadvantages in the prior art dredging apparatus are as follows.
1. The prior art dredging equipment separates sewage through the filter screen, however, silt falling from a high place can impact the filter screen, the impact force can cause undesired substances to pass through the filter screen, or the impact force can damage the filter screen.
2. In the dredging equipment in the prior art, the spiral extrusion column is often in an equal-diameter structure, however, the equal-diameter structure does not consider many factors such as: the size of the passing space of the medium and the size of the extrusion force of the medium, so the function is single.
3. In the dredging equipment in the prior art, the spiral extrusion column is driven by the motor, however, the motor is often additionally provided with a heightening plate or a supporting frame, so that the volume is increased, and the cost is increased.
4. In the desilting equipment in the prior art, the sludge is often directly discharged after being extruded, the on-off control and the regulation of the sludge discharge amount are lacked, the sludge cannot be on and off in time when a downstream storage chamber is filled in some special working conditions, and the downstream storage chamber is required to be stared to prevent the sludge from being too full through manual intervention. The use of conventional valves for sludge discharge requires technical difficulties to be overcome.
5. The prior art dredging device has the cleaning requirement, a separate cleaning channel is additionally arranged, however, if other functions such as a valve function and a manual driving device function are additionally added, the cost is increased and the volume is increased due to the superposition of too many functions.
6. In the dredging equipment in the prior art, the spiral extrusion column is driven by the motor, so that manual pipe connection in an emergency cannot be realized, and the motor drive or the manual drive device drive may exist in the prior art, but the size of the force arm for rotating the manual drive device is not considered in the drive.
Disclosure of Invention
In order to overcome the above problems, the present invention proposes a solution to solve the above problems simultaneously.
The technical scheme adopted by the invention for solving the technical problems is as follows: a sludge treatment system comprises a sand separation module, a liquid medicine mixing module and a sludge dewatering module; silt is handled through grit separation module, liquid medicine mixing module, silt dehydration module in proper order.
The sand-stone separation module comprises a vibrating screen, a screen and a sand-stone plate are arranged on the vibrating screen, a sludge conveying pipe conveys sludge to the screen, slurry seeps downwards through gaps of the screen, and sand which does not pass through the screen enters a sand-stone collection bag through the sand-stone plate;
the liquid medicine mixing module includes the funnel, is equipped with the liquid medicine mixing tank in the funnel, is equipped with the column agitator in the liquid medicine mixing tank, and the liquid medicine conveyer pipe is carried the liquid medicine and is gone into in the funnel, the end of liquid medicine conveyer pipe is equipped with the liquid medicine shower nozzle, and under the rotation of column agitator, silt and liquid medicine carry out the homogeneous mixing, follow after the mixture the bottom discharge of funnel.
The sludge dewatering module comprises a main body, a sludge outlet adjusting valve, an upper plate, a filter screen, a sludge dewatering cavity, a spiral extrusion column, a separated water collecting tank, a water collecting plate, a separated water outlet, a dewatered sludge block outlet, a sealing plate, a manual driving device, a first guide plate, a second guide plate, a sewage outlet, an impact resisting plate, a right side wall, a left side wall, an inner cylinder, a motor and an outer cylinder; the mud outlet adjusting valve comprises a driving part, a valve rod and a valve core.
Wherein the main part top is equipped with the upper plate, the right side of upper plate is equipped with the silt import, the middle part of main part is equipped with the filter screen, is equipped with between filter screen and the upper plate silt dehydration chamber, be equipped with in the silt dehydration chamber the screw extrusion post, the right side of filter screen corresponds the position of silt import is equipped with the board of shocking resistance.
The spiral extrusion column is in a conical column shape, the left side of the spiral extrusion column is a large-diameter end, the right side of the spiral extrusion column is a small-diameter end, a plurality of blades are arranged on the spiral extrusion column at equal intervals, and the diameters of the blades are sequentially increased from right to left.
The right side of main part is equipped with the right side wall, be equipped with on the right side wall the inner tube, the inner tube outside cover is equipped with the urceolus, the urceolus with inner tube fixed connection, the urceolus right side is connected the motor, motor drive the spiral extrusion post rotates.
A gap is formed between the left end of the spiral extrusion column and the upper plate above the spiral extrusion column, a gap is formed between the left end of the spiral extrusion column and the lower filter screen, a mud block channel is arranged on the left side of the spiral extrusion column, a dehydrated mud block outlet is arranged on the lower part of the mud block channel, a left side wall is arranged on the left side of the main body, the manual driving device penetrates through the left side wall and is connected with the spiral extrusion column, the driving part is also arranged on the left side wall and is connected with the valve rod, and the driving part controls the valve rod to act and drives the valve core to seal the gap between the left end of the spiral extrusion column and the periphery; the valve core is an annular valve core; the outer surface of the annular valve core comprises an inclined plane; and the closing plate is arranged above the sludge outlet adjusting valve.
The below of filter screen is equipped with the water-collecting sheet, and the water-collecting sheet includes the inclined plane structure, constitutes between water-collecting sheet and the filter screen separation water collecting vat is equipped with in the water-collecting sheet separation water discharge port, clod passageway below is equipped with the first guide board that the slope set up, separation water discharge port below is equipped with the second guide board that the slope set up, first guide board lower extreme with it sets up to dewater clod export interval, second guide board lower extreme with sewage export interval sets up.
Further, the number of the blades is five.
Further, the number of the valve rods is two.
Further, the number of the driving parts is two.
Further, the driving parts correspond to the valve rods one to one.
Further, the manual driving device is a hand wheel driving device.
Furthermore, a valve seat is arranged at the left end of the filter screen.
Furthermore, a valve seat is arranged at the left end of the upper plate.
Furthermore, the outlet of the dewatered mud cake is externally connected with a pipeline.
Furthermore, the sewage outlet is externally connected with a pipeline.
The invention has the beneficial effects.
1. Aiming at the 1 st point of the background technology, an impact resistant plate is adopted, in the whole filter screen structure, one part of the whole filter screen structure is improved into the impact resistant plate, and the impact resistant plate is correspondingly arranged at the position opposite to a blanking port to replace a filter screen so as to prevent unexpected substances from passing through the filter screen.
2. Aiming at the 2 nd point of the background technology, the extrusion column is arranged to be in a conical structure, enough space is reserved at the conical small-diameter end to accommodate blanking, and the conical large-diameter end generates a better extrusion effect through the large-size extrusion column and the large-size blades.
3. Aiming at the 3 rd point of the background technology, the motor shell is mutually clamped and connected with the inner cylinder on the main shell of the squeezing and dewatering equipment through the outer cylinder, so that the motor is fixed.
4. Aiming at the 4 th point of the background technology, an on-off control valve is arranged at an outlet of a large-diameter end of an extrusion column, the shape of a valve core in the valve is matched with the gap of the outlet, and the control opening sequence of the on-off control valve controls the discharge amount. The technical difficulty of adapting the clearance is overcome by the annular valve core.
5. Aiming at the 5 th point of the background technology, the control valve, the manual driving device and the cleaning channel are integrated in one space, and the space utilization rate is greatly improved.
6. Aiming at the 6 th point of the background technology, the driving end of the manual driving device corresponds to the large-diameter end of the extrusion column, and the driving end of the motor corresponds to the small-diameter end of the extrusion column, so that the problem that the manual driving cannot be performed due to an overlong force arm in the manual driving process is avoided.
Note: the foregoing designs are not sequential, each of which provides a distinct and significant advance in the present invention over the prior art.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic view of a prior art sludge purification treatment system.
FIG. 2 is a schematic diagram of the silt sand separation module of the present invention.
Fig. 3 is a structural schematic diagram of a sludge liquid medicine mixing module of the invention.
FIG. 4 is a schematic view of the press dewatering apparatus of the present invention.
In the drawings, reference numerals are as follows.
1. The device comprises a sand stone plate 2, a screen 3, a sludge conveying pipe 4, a liquid medicine spray head 5, a stirring column 6, a liquid medicine conveying pipe 7, a liquid medicine mixing tank 8, a sludge outlet adjusting valve 9, an upper plate 10, a sludge dewatering cavity 11, a spiral extrusion column 12, a separated water collecting tank 13, a water collecting plate 14, a separated water outlet 15, a dewatered sludge block outlet 16, a closing plate 17, a manual driving device 18, a valve core 19, a first guide plate 20, a main body 21, a second guide plate 22, a sewage outlet 23, an impact-resistant plate 24, a right side wall 25, an inner cylinder 26, a motor 27, an outer cylinder 28, a filter screen 29 and a left side wall.
Detailed Description
As shown in the figure: a sludge treatment system comprises a sand separation module, a liquid medicine mixing module and a sludge dewatering module; sludge is sequentially treated by the sand separation module, the liquid medicine mixing module and the sludge dewatering module;
the sand-stone separation module comprises a vibrating screen, a screen and a sand-stone plate are arranged on the vibrating screen, a sludge conveying pipe conveys sludge to the screen, slurry seeps downwards through gaps of the screen, and sand which does not pass through the screen enters a sand-stone collection bag through the sand-stone plate;
the liquid medicine mixing module includes the funnel, is equipped with the liquid medicine mixing tank in the funnel, is equipped with the column agitator in the liquid medicine mixing tank, and the liquid medicine conveyer pipe is carried the liquid medicine and is gone into in the funnel, the end of liquid medicine conveyer pipe is equipped with the liquid medicine shower nozzle, and under the rotation of column agitator, silt and liquid medicine carry out the homogeneous mixing, follow after the mixture the bottom discharge of funnel.
As shown in the figure: the sludge dewatering module comprises a main body, a sludge outlet adjusting valve, an upper plate, a filter screen, a sludge dewatering cavity, a spiral extrusion column, a separated water collecting tank, a water collecting plate, a separated water outlet, a dewatered sludge block outlet, a sealing plate, a manual driving device, a first guide plate, a second guide plate, a sewage outlet, an impact resisting plate, a right side wall, a left side wall, an inner cylinder, a motor and an outer cylinder; the mud outlet adjusting valve comprises a driving part, a valve rod and a valve core.
Wherein the main part top is equipped with the upper plate, the right side of upper plate is equipped with the silt import, the middle part of main part is equipped with the filter screen, is equipped with between filter screen and the upper plate silt dehydration chamber, be equipped with in the silt dehydration chamber the screw extrusion post, the right side of filter screen corresponds the position of silt import is equipped with the board of shocking resistance.
The spiral extrusion column is in a conical column shape, the left side of the spiral extrusion column is a large-diameter end, the right side of the spiral extrusion column is a small-diameter end, a plurality of blades are arranged on the spiral extrusion column at equal intervals, and the diameters of the blades are sequentially increased from right to left.
The right side of main part is equipped with the right side wall, be equipped with on the right side wall the inner tube, the inner tube outside cover is equipped with the urceolus, the urceolus with inner tube fixed connection, the urceolus right side is connected the motor, motor drive the spiral extrusion post rotates.
As shown in the figure: a gap is formed between the left end of the spiral extrusion column and the upper plate above the spiral extrusion column, a gap is formed between the left end of the spiral extrusion column and the lower filter screen, a mud block channel is arranged on the left side of the spiral extrusion column, a dehydrated mud block outlet is arranged on the lower part of the mud block channel, a left side wall is arranged on the left side of the main body, the manual driving device penetrates through the left side wall and is connected with the spiral extrusion column, the driving part is also arranged on the left side wall and is connected with the valve rod, and the driving part controls the valve rod to act and drives the valve core to seal the gap between the left end of the spiral extrusion column and the periphery; the valve core is an annular valve core; the outer surface of the annular valve core comprises an inclined plane; and the closing plate is arranged above the sludge outlet adjusting valve.
The below of filter screen is equipped with the water-collecting sheet, and the water-collecting sheet includes the inclined plane structure, constitutes between water-collecting sheet and the filter screen separation water collecting vat is equipped with in the water-collecting sheet separation water discharge port, clod passageway below is equipped with the first guide board that the slope set up, separation water discharge port below is equipped with the second guide board that the slope set up, first guide board lower extreme with it sets up to dewater clod export interval, second guide board lower extreme with sewage export interval sets up.
As shown in the figure: the number of the blades is five. The number of the valve rods is two. The number of the driving parts is two. The driving parts correspond to the valve rods one to one. The manual driving device is a hand wheel driving device. The left end of the filter screen is provided with a valve seat. And a valve seat is arranged at the left end of the upper plate. The outlet of the dewatered mud block is externally connected with a pipeline. The sewage outlet is externally connected with a pipeline.
The above detailed description is specific to possible embodiments of the present invention, and the embodiments are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the scope of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A sludge treatment system, characterized by: the sludge treatment system comprises the sand separation module, the liquid medicine mixing module and a sludge dewatering module; sludge is sequentially treated by the sand separation module, the liquid medicine mixing module and the sludge dewatering module;
the sand-stone separation module comprises a vibrating screen, a screen and a sand-stone plate are arranged on the vibrating screen, a sludge conveying pipe conveys sludge to the screen, slurry seeps downwards through gaps of the screen, and sand which does not pass through the screen enters a sand-stone collection bag through the sand-stone plate;
the liquid medicine mixing module comprises a funnel, a liquid medicine mixing tank is arranged in the funnel, a stirring column is arranged in the liquid medicine mixing tank, liquid medicine is conveyed into the funnel by a liquid medicine conveying pipe, a liquid medicine spray head is arranged at the tail end of the liquid medicine conveying pipe, under the rotation action of the stirring column, sludge and the liquid medicine are uniformly mixed, and the mixed sludge and liquid medicine are discharged from the bottom of the funnel;
the sludge dewatering module comprises a main body, a sludge outlet adjusting valve, an upper plate, a filter screen, a sludge dewatering cavity, a spiral extrusion column, a separated water collecting tank, a water collecting plate, a separated water outlet, a dewatered sludge block outlet, a sealing plate, a manual driving device, a first guide plate, a second guide plate, a sewage outlet, an impact resisting plate, a right side wall, a left side wall, an inner cylinder, a motor and an outer cylinder; the mud outlet regulating valve comprises a driving part, a valve rod and a valve core;
the sludge dewatering device comprises a main body, a spiral extrusion column, an impact-resistant plate, a sludge dewatering cavity, a spiral extrusion column, a sludge inlet, a sludge dewatering cavity and a sludge dewatering cavity, wherein the upper plate is arranged above the main body, the sludge inlet is formed in the right side of the upper plate, the sludge dewatering cavity is formed between the filter screen and the upper plate, the spiral extrusion column is arranged in the sludge dewatering;
the spiral extrusion column is in a conical column shape, the left side of the spiral extrusion column is a large-diameter end, the right side of the spiral extrusion column is a small-diameter end, a plurality of blades are arranged on the spiral extrusion column and are arranged at equal intervals, and the diameters of the blades are sequentially increased from right to left;
the right side of the main body is provided with the right side wall, the inner cylinder is arranged on the right side wall, the outer cylinder is sleeved outside the inner cylinder and fixedly connected with the inner cylinder, the right side of the outer cylinder is connected with the motor, and the motor drives the spiral extrusion column to rotate;
a gap is formed between the left end of the spiral extrusion column and the upper plate above the spiral extrusion column, a gap is formed between the left end of the spiral extrusion column and the lower filter screen, a mud block channel is arranged on the left side of the spiral extrusion column, a dehydrated mud block outlet is arranged on the lower part of the mud block channel, a left side wall is arranged on the left side of the main body, the manual driving device penetrates through the left side wall and is connected with the spiral extrusion column, the driving part is also arranged on the left side wall and is connected with the valve rod, and the driving part controls the valve rod to act and drives the valve core to seal the gap between the left end of the spiral extrusion column and the periphery; the valve core is an annular valve core; the outer surface of the annular valve core comprises an inclined plane; the sealing plate is arranged above the sludge outlet adjusting valve;
the below of filter screen is equipped with the water-collecting sheet, and the water-collecting sheet includes the inclined plane structure, constitutes between water-collecting sheet and the filter screen separation water collecting vat is equipped with in the water-collecting sheet separation water discharge port, clod passageway below is equipped with the first guide board that the slope set up, separation water discharge port below is equipped with the second guide board that the slope set up, first guide board lower extreme with it sets up to dewater clod export interval, second guide board lower extreme with sewage export interval sets up.
2. A sludge treatment system as claimed in claim 1, wherein: the number of the blades is five.
3. A sludge treatment system as claimed in claim 1, wherein: the number of the valve rods is two.
4. A sludge treatment system as claimed in claim 3, wherein: the number of the driving parts is two.
5. A sludge treatment system as claimed in claim 4, wherein: the driving parts correspond to the valve rods one to one.
6. A sludge treatment system as claimed in claim 1, wherein: the manual driving device is a hand wheel driving device.
7. A sludge treatment system as claimed in claim 1, wherein: the left end of the filter screen is provided with a valve seat.
8. A sludge treatment system as claimed in claim 7 wherein: and a valve seat is arranged at the left end of the upper plate.
9. A sludge treatment system as claimed in claim 1, wherein: the outlet of the dewatered mud block is externally connected with a pipeline.
10. A sludge treatment system as claimed in claim 1, wherein: the sewage outlet is externally connected with a pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011487880.1A CN112520971A (en) | 2020-12-16 | 2020-12-16 | Sludge treatment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011487880.1A CN112520971A (en) | 2020-12-16 | 2020-12-16 | Sludge treatment system |
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| CN112520971A true CN112520971A (en) | 2021-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011487880.1A Pending CN112520971A (en) | 2020-12-16 | 2020-12-16 | Sludge treatment system |
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| CN (1) | CN112520971A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114751506A (en) * | 2022-05-11 | 2022-07-15 | 珠江水利委员会珠江水利科学研究院 | A kind of river water ecological treatment equipment |
| CN115646298A (en) * | 2022-11-11 | 2023-01-31 | 东北农业大学 | Liquid pesticide mixing ratio precise adjustment mixer |
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| JP2009297590A (en) * | 2008-06-10 | 2009-12-24 | Ishigaki Co Ltd | Screw press having flocculation device |
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2020
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| CN114751506A (en) * | 2022-05-11 | 2022-07-15 | 珠江水利委员会珠江水利科学研究院 | A kind of river water ecological treatment equipment |
| CN115646298A (en) * | 2022-11-11 | 2023-01-31 | 东北农业大学 | Liquid pesticide mixing ratio precise adjustment mixer |
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Application publication date: 20210319 |