CN214936950U - Sludge treatment device - Google Patents
Sludge treatment device Download PDFInfo
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- CN214936950U CN214936950U CN202120377208.0U CN202120377208U CN214936950U CN 214936950 U CN214936950 U CN 214936950U CN 202120377208 U CN202120377208 U CN 202120377208U CN 214936950 U CN214936950 U CN 214936950U
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Abstract
The utility model discloses a sludge treatment device, concretely relates to sludge treatment technical field, its technical scheme is: the system comprises a first discharging system, a multi-stage furnace pyrolysis system, a tail gas treatment system and a second discharging system, wherein the first discharging system comprises a sludge feeding storage tank and a single-cylinder plunger pump, and the output end of the sludge feeding storage tank is connected with the single-cylinder plunger pump through a screw conveyor; multistage stove pyrolysis system includes vertical type multistage rake stove, vertical type multistage rake stove top fixed mounting center pin driving motor, vertical type multistage rake stove inner wall grafting center pin, the center pin driving motor output is connected the center pin, the center pin outer wall evenly connects the rake arm, the rake arm bottom evenly is equipped with the rake teeth, the beneficial effects of the utility model are that: the vertical multi-section rake furnace is adopted to pyrolyze the sludge, so that the sludge pyrolysis device has the advantages of easiness in control, large controllable range of operating conditions, small occupied area, high energy efficiency and low power demand.
Description
Technical Field
The utility model relates to a sludge treatment field, concretely relates to sludge treatment device.
Background
The sludge is a solid precipitate produced in the process of water and sewage treatment, is a product after sewage treatment, is an extremely complex heterogeneous body consisting of organic residues, bacterial cells, inorganic particles, colloids and the like, has the main characteristics of high water content, high organic matter content, easy decomposition and odor generation, fine particles, small specific gravity and colloidal liquid state, is a thick substance between liquid and solid, can be transported by a pump, but is difficult to carry out solid-liquid separation by sedimentation.
The prior art has the following defects: the existing sludge treatment device generally occupies a large area, has low energy efficiency and large power requirement, and thus, the investment of cost is increased.
Therefore, it is necessary to invent a sludge treatment apparatus.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model provides a sludge treatment device flows into vertical type multistage rake type stove through ejection of compact system in unison to make vertical type multistage rake type stove carry out the pyrolysis to mud, mud after the pyrolysis will discharge through ejection of compact system two and go, and discharge produced flue gas after the pyrolysis through tail gas processing system and go, it is bigger to solve the general area of current sludge treatment device, and the problem that energy inefficiency and power demand are big.
In order to achieve the above object, the present invention provides the following technical solutions: a sludge treatment device comprises a first discharge system, a multi-stage furnace pyrolysis system, a tail gas treatment system and a second discharge system, wherein the first discharge system comprises a sludge feeding storage tank and a single-cylinder plunger pump, and the output end of the sludge feeding storage tank is connected with the single-cylinder plunger pump through a screw conveyor;
the multi-section furnace pyrolysis system comprises a vertical multi-section rake furnace, a central shaft driving motor is fixedly installed at the top of the vertical multi-section rake furnace, a central shaft is inserted into the inner wall of the vertical multi-section rake furnace, the output end of the central shaft driving motor is connected with the central shaft, the outer wall of the central shaft is uniformly connected with rake arms, rake teeth are uniformly arranged at the bottoms of the rake arms, and the inner wall of the vertical multi-section rake furnace is connected with a combustion fan through a pipeline;
the tail gas treatment system comprises a first cyclone dust collector, the output end of the first cyclone dust collector is connected with a second cyclone dust collector through a pipeline, the second output end of the cyclone dust collector is connected with a precooler through a pipeline, the precooler is connected with a wet-type washing tower through a pipeline, one end of the inner wall of the wet washing tower is connected with an alkali liquor storage tank through a pipeline, the top of the wet washing tower is connected with a draught fan through a pipeline, the output end of the induced draft fan is connected with the regenerative combustion furnace through a pipeline, the output end of the regenerative combustion furnace is connected with a chimney through a pipeline, the bottom of the wet washing tower is connected with a circulating water tank through a pipeline, the left end of the circulating water tank is connected with the precooler through a pipeline, the right end of the circulating water tank is connected with a heat exchanger through a pipeline, two ends of the right side of the heat exchanger are connected with a cooling tower through pipelines, and the top of the heat exchanger is connected with the wet washing tower through a pipeline;
the second discharging system comprises a cooling type screw conveyor, a discharging scraper conveyor and a discharging storage tank, the output end of the cooling type screw conveyor is connected with the discharging scraper conveyor through a pipeline, and the output end of the discharging scraper conveyor is connected with the discharging storage tank through a pipeline;
the single cylinder plunger pump output end passes through the pipe connection feed inlet, vertical type multistage harrow formula furnace top passes through the pipe connection the chimney, vertical type multistage harrow formula furnace bottom passes through the pipe connection cooling type screw conveyer, vertical type multistage harrow formula furnace right-hand member passes through the pipe connection cyclone.
Preferably, the output end of the combustion fan is connected with a natural gas pipeline.
Preferably, the feed inlet is formed in the inner wall of the top end of the vertical multi-section rake furnace.
Preferably, the vertical multi-section rake type furnace outer layer material is set to carbon steel.
Preferably, the interior of the vertical multi-section harrow type furnace is built by self-supporting small-angle micro-arch shaped refractory bricks.
Preferably, the bottom end of the right side of the circulating water tank is connected with an industrial water pipeline.
Preferably, the first discharging system is connected with the multi-stage furnace pyrolysis system, the multi-stage furnace pyrolysis system is connected with the tail gas treatment system, and the multi-stage furnace pyrolysis system is connected with the second discharging system.
The utility model has the advantages that:
1. when the utility model is used, the sludge in the sludge feeding storage tank is stably fed into the horizontal bar plunger pump through the screw conveyor, then the horizontal bar plunger pump can convey the sludge into the vertical multi-section rake furnace through the feed inlet, when the sludge enters the vertical multi-section rake furnace, the central shaft driving motor can drive the central shaft to rotate, the rotating central shaft can drive the rake arm to rotate, then the rake arm can drive the rake teeth to rotate, the rotating rake teeth can pull the sludge open and uniformly distribute on the furnace bed when contacting the sludge, thereby achieving the purpose of moving the sludge from top to bottom, when the sludge moves in the vertical multi-section rake furnace, the combustion fan can heat the sludge through natural gas, thereby realizing the processes of drying, pyrolysis and carbonization when the sludge moves from top to bottom in the vertical multi-section rake furnace, the high temperature produced flows into a chimney through a pipeline, and the sludge is pyrolyzed by adopting the vertical multi-section rake furnace, so that the device has the advantages of easy control, large controllable range of operating conditions, small occupied area, high energy efficiency and small power demand;
2. when the utility model is used, after sludge is dried, pyrolyzed and carbonized, the vertical multi-section rake furnace can convey sludge carbonized ash to the cooling screw conveyer, then the cooling screw conveyer can convey the sludge carbonized ash to the discharging storage tank through the discharging scraper conveyer, meanwhile, the vertical multi-section rake furnace can convey the pyrolyzed flue gas to the cyclone dust collector I and the cyclone dust collector II, then the cyclone dust collector I and the cyclone dust collector II can clear dust in the flue gas, the cleaned flue gas can flow into the precooler, then the precooler can precool the dedusted gas, the precooled gas can flow into the wet washing tower, after flowing into, the alkali liquor storage tank can flow into the wet washing tower in a spraying manner through a pipeline, thereby the hydrogen chloride in the flue gas can be removed from the flue gas through acid-alkali neutralization reaction, meanwhile, the cooling tower flows water into the wet washing tower through the heat exchanger, small particles are gathered into large particles through the adsorption force of the water on smoke dust and are washed into the circulating water tank, the smoke dust in the smoke gas can be discharged up to the standard, then the draught fan introduces the cleaned gas into the heat accumulating type combustion furnace through a pipeline, after the introduction, the heat accumulating type combustion furnace combusts the introduced gas, and therefore dioxin and heavy metal in the gas are removed, when the heat accumulating type combustion furnace works, sufficient air and auxiliary fuel are introduced into the heat accumulating type combustion furnace to heat the synthesis gas to 850 ℃ and stay in the heat accumulating type combustion furnace for a second, and the organic matters are completely converted into harmless CO2And H2O, the heat energy of high temperature flue gas is then stored in the heat accumulator in the flue, is used for preheating the admission through the switching of breather valve to reach high-efficient recovery flue gas heat energy, the purpose of fuel saving, after burning gas, discharge the gas after burning through the chimney, when wet-type scrubbing tower flowed into the circulating water tank with water, the circulating water tank will flow into the cooling tower through the heat exchanger with water, through with the smoke and dust up to standard emission standard in the flue gas, has the effect of environmental protection.
Drawings
FIG. 1 is a flow chart of the sludge pyrolysis treatment provided by the present invention;
fig. 2 is a schematic view of a three-dimensional structure of a vertical multi-stage rake furnace provided by the present invention;
fig. 3 is a schematic top view of the vertical multi-stage rake furnace provided by the present invention;
fig. 4 is a schematic view of the overall process provided by the present invention.
In the figure: the system comprises a discharge system 1, a sludge feeding storage tank 11, a multi-stage furnace pyrolysis system 2, a vertical multi-stage rake furnace 21, a combustion fan 22, a natural gas pipeline 221, a central shaft driving motor 23, a feed inlet 24, a central shaft 25, a rake arm 26, rake teeth 27, a tail gas treatment system 3, a first cyclone dust collector 31, a second cyclone dust collector 32, a precooler 33, a wet washing tower 34, an alkali liquor storage tank 341, a cooling tower 342, a heat exchanger 343, a circulating water tank 344, an induced draft fan 35, a regenerative combustion furnace 36, a chimney 37, a second discharge system 4, a cooling screw conveyor 41, a discharge scraper conveyor 42 and a discharge storage tank 43.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
Referring to the attached drawings 1-4, the utility model provides a sludge treatment device, which comprises a discharge system I1, a multi-stage furnace pyrolysis system 2, a tail gas treatment system 3 and a discharge system II 4;
further, discharge system 1 includes mud pan feeding storage tank 11 and single cylinder plunger pump, 11 output ends of mud pan feeding storage tank pass through the auger delivery ware and connect the single cylinder plunger pump, and is specific, and mud pan feeding storage tank 11 has the effect of sending mud into the horizontal bar plunger pump through the auger delivery ware with the stability, and the feeding rate of mud can be adjusted through the transport frequency of adjusting the horizontal bar plunger pump in the feeding process.
Further, the multi-stage furnace pyrolysis system 2 comprises a vertical multi-stage rake furnace 21, a central shaft driving motor 23 is fixedly installed at the top of the vertical multi-stage rake furnace 21, a central shaft 25 is inserted into the inner wall of the vertical multi-stage rake furnace 21, the output end of the central shaft driving motor 23 is connected with the central shaft 25, a rake arm 26 is uniformly connected with the outer wall of the central shaft 25, rake teeth 27 are uniformly arranged at the bottom of the rake arm 26, the inner wall of the vertical multi-stage rake furnace 21 is connected with a combustion fan 22 through a pipeline, specifically, the central shaft driving motor 23 has the function of driving the central shaft 25 to rotate, the central shaft 25 has the function of driving the rake arm 26 to rotate, the rake arm 26 has the function of driving the rake teeth 27 to rotate, the number of each layer of the rake arms 26 can be designed differently according to requirements, and the rotating rake teeth 27 have the function of poking away and uniformly distributing sludge on a furnace bed when contacting sludge, the angular adjustment of the rake teeth 27 enables the material to move on the hearth toward the center or toward the wall side, so as to achieve the purpose of moving the sludge from top to bottom, and the combustion fan 22 has the function of heating the sludge, thereby realizing the processes of drying, pyrolysis and carbonization when the sludge moves from top to bottom in the vertical multi-section rake furnace 21.
Further, the tail gas treatment system 3 comprises a first cyclone dust collector 31, the output end of the first cyclone dust collector 31 is connected with a second cyclone dust collector 32 through a pipeline, the output end of the second cyclone dust collector 32 is connected with a precooler 33 through a pipeline, the precooler 33 is connected with a wet scrubber 34 through a pipeline, one end of the inner wall of the wet scrubber 34 is connected with an alkali liquor storage tank 341 through a pipeline, the top of the wet scrubber 34 is connected with an induced draft fan 35 through a pipeline, the output end of the induced draft fan 35 is connected with a regenerative combustion furnace 36 through a pipeline, the output end of the regenerative combustion furnace 36 is connected with a chimney 37 through a pipeline, the bottom of the wet scrubber 34 is connected with a circulating water tank 344 through a pipeline, the left end of the circulating water tank 344 is connected with the precooler 33 through a pipeline, the right end of the circulating water tank 344 is connected with a heat exchanger 343 through a pipeline, and the two ends of the right side of the heat exchanger 343 are connected with a cooling tower through pipelines 342, the top of the heat exchanger 343 is connected with the wet scrubber 34 through a pipeline, specifically, the first cyclone separator 31 is a dust removing device, the dust removing mechanism is to make the dust-containing gas flow rotate, the dust particles are separated from the gas flow and collected on the wall of the gas flow by means of centrifugal force, and then fall into the dust hopper by means of gravity, the first cyclone separator 31 and the second cyclone separator 32 have the function of cleaning the dust in the flue gas, the dust removing efficiency of the first cyclone separator 31 and the second cyclone separator 32 can reach about 90%, the precooler 33 has the function of precooling the gas after dust removal, the gas after precooling has the function of flowing into the wet scrubber 34, the alkali liquor storage tank 341 has the function of flowing alkali liquor into the wet scrubber 34 in a spraying manner through a pipeline, so that the hydrogen chloride in the flue gas can be removed from the flue gas through acid-alkali neutralization reaction, the induced draft fan 35 has a function of introducing the cleaned gas into the regenerative combustion furnace 36 through a pipeline, the regenerative combustion furnace 36 has a function of combusting the introduced gas so as to remove dioxin and heavy metals in the gas, the combusted gas has a function of discharging the gas through a chimney 37, the wet scrubber tower 34 has a function of aggregating small particles into large particles through the suction force of water on smoke and washes the large particles into the circulating water tank 344 so as to ensure that the smoke in the smoke can reach the standard and be discharged, the circulating water tank 344 has a function of flowing water into the precooler 33 so as to reduce the temperature of the precooler 33, the circulating water tank 344 has a function of flowing water into the cooling tower 342 through a heat exchanger 343, the heat exchanger 343 is a device for transferring partial heat of hot fluid to cold fluid, also called as a heat exchanger, and the heat exchanger 343 has a function of reducing the temperature of the water, the cooling tower 342 has a function of cooling water, and the cooling tower 342 has a function of flowing water into the wet scrubber tower 34 through the heat exchanger 343.
Further, the second discharging system 4 comprises a cooling screw conveyor 41, a discharging scraper conveyor 42 and a discharging storage tank 43, the output end of the cooling screw conveyor 41 is connected with the discharging scraper conveyor 42 through a pipeline, the output end of the discharging scraper conveyor 42 is connected with the discharging storage tank 43 through a pipeline, specifically, the cooling screw conveyor 41 has an effect of cooling sludge carbonization ash, the cooling screw conveyor 41 has an effect of conveying the sludge carbonization ash into the discharging scraper conveyor 42, and the discharging scraper conveyor 42 has an effect of conveying the cooled sludge carbonization ash into the discharging storage tank 43.
Further, the single cylinder plunger pump output end passes through pipe connection feed inlet 24, vertical type multistage rake stove 21 top passes through the pipe connection chimney 37, vertical type multistage rake stove 21 bottom passes through the pipe connection cooling type screw conveyer 41, vertical type multistage rake stove 21 right-hand member passes through the pipe connection cyclone 31, and is concrete, the horizontal bar plunger pump has the effect of carrying mud in vertical type multistage rake stove 21 through feed inlet 24, and vertical type multistage rake stove 21 has the effect that flows in chimney 37 with produced high temperature gas through the pipeline, and vertical type multistage rake stove 21 has the effect of carrying mud carbonization lime-ash to cooling type screw conveyer 41, and vertical type multistage rake stove 21 has the effect that produced flue gas was carried in cyclone 31.
Further, the output end of the combustion fan 22 is connected with the natural gas pipeline 221, and specifically, the natural gas pipeline 221 has an effect of conveying natural gas into the output end of the combustion fan 22, so that the heating effect is improved.
Further, the feed inlet 24 is opened on the inner wall of the top end of the vertical multi-section rake furnace 21.
Further, the outer layer material of the vertical multi-stage raking furnace 21 is made of carbon steel.
Furthermore, the interior of the vertical multi-section rake furnace 21 is built by self-supporting small-angle micro-arch shaped refractory bricks.
Further, the bottom end of the right side of the circulation water tank 344 is connected to an industrial water pipe, and in particular, has a function of delivering industrial water into the circulation water tank 344 through the industrial water pipe.
Further, discharge system 1 connects multistage stove pyrolysis system 2, multistage stove pyrolysis system 2 connects tail gas processing system 3, two 4 discharge systems of multistage stove pyrolysis system 2 connection.
The utility model discloses a use as follows: use the utility model discloses earlier send into the horizontal bar plunger pump through the mud of auger delivery in with mud pan feeding storage tank 11 in the time, then the horizontal bar plunger pump will carry the vertical type multistage harrow formula stove 21 with mud through feed inlet 24 in, when mud enters into vertical type multistage harrow formula stove 21, the center pinThe driving motor 23 will drive the central shaft 25 to rotate, the rotating central shaft 25 will drive the rake arm 26 to rotate, then the rake arm 26 will drive the rake teeth 27 to rotate, the rotating rake teeth 27 will spread the sludge and evenly distribute the sludge on the hearth when contacting the sludge, so as to make the sludge move from top to bottom, when the sludge moves in the vertical multi-section rake 21, the combustion fan 22 will heat the sludge through natural gas, thereby realizing the top-to-bottom movement of the sludge in the vertical multi-section rake 21, going through the drying, pyrolysis and carbonization processes, wherein the generated high temperature will flow into the chimney 37 through the pipeline, when the sludge goes through drying, pyrolysis and carbonization, the vertical multi-section rake 21 will transport the carbonized sludge ash into the cooling screw conveyor 41, then the cooling screw conveyor 41 will transport the sludge to the discharged ash storage tank 43 through the discharged scraper conveyor 42, meanwhile, the vertical multi-section rake furnace 21 conveys the pyrolyzed flue gas into the first cyclone dust collector 31 and the second cyclone dust collector 32, then the first cyclone dust collector 31 and the second cyclone dust collector 32 clean dust in the flue gas, the cleaned flue gas flows into the precooler 33, then the precooler 33 precools the dedusted gas, the precooled gas flows into the wet scrubber 34, after the gas flows in, the alkali liquor storage tank 341 flows into the wet scrubber 34 in a spraying manner through a pipeline, so that hydrogen chloride in the flue gas is removed from the flue gas through acid-base neutralization reaction, meanwhile, the cooling tower 342 flows water into the wet scrubber 34 through the heat exchanger 343, so that small particles are gathered into large particles to be washed into the circulating water tank 344 through the absorption force of the water on the flue gas, thereby ensuring that the flue gas in the flue gas can reach the standard and be discharged, then the induced draft fan 35 introduces the cleaned gas into the regenerative combustion furnace 36 through a pipeline, after introduction, the regenerative combustion furnace 36 combusts the introduced gas, so that dioxin and heavy metals in the gas are removed, when the regenerative combustion furnace 36 works, sufficient air and auxiliary fuel are introduced into the regenerative combustion furnace 36 to heat the synthesis gas to 850 ℃ and stay in the synthesis gas for 2 seconds, so that the organic matters are completely converted into harmless CO2And H2O, the heat energy of the high temperature flue gas is stored in the heat storage body in the flue, and is used for preheating the inlet air through the switching of the ventilation valve, so as to achieve the purpose of efficiently recovering the heat energy of the flue gas and saving the fuel, after the gas is combusted, the combusted gas is discharged through the chimney 37, and when the wet scrubber 34 flows water into the circulating water tank 344, the circulating water tank 344 flows the water into the cooling tower 342 through the heat exchanger 343.
The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solutions described above. Therefore, any simple modifications or equivalent replacements made according to the technical solution of the present invention belong to the scope of the claimed invention as far as possible.
Claims (7)
1. The utility model provides a sludge treatment device, includes that discharge system is one (1), multistage stove pyrolysis system (2), tail gas processing system (3) and discharge system two (4), its characterized in that: the discharge system (1) comprises a sludge feeding storage tank (11) and a single-cylinder plunger pump, wherein the output end of the sludge feeding storage tank (11) is connected with the single-cylinder plunger pump through a screw conveyor;
the multi-section furnace pyrolysis system (2) comprises a vertical multi-section rake furnace (21), a central shaft driving motor (23) is fixedly installed at the top of the vertical multi-section rake furnace (21), a central shaft (25) is inserted into the inner wall of the vertical multi-section rake furnace (21), the output end of the central shaft driving motor (23) is connected with the central shaft (25), the outer wall of the central shaft (25) is uniformly connected with a rake arm (26), rake teeth (27) are uniformly arranged at the bottom of the rake arm (26), and the inner wall of the vertical multi-section rake furnace (21) is connected with a combustion fan (22) through a pipeline;
the tail gas treatment system (3) comprises a first cyclone dust collector (31), the output end of the first cyclone dust collector (31) is connected with a second cyclone dust collector (32) through a pipeline, the output end of the second cyclone dust collector (32) is connected with a precooler (33) through a pipeline, the precooler (33) is connected with a wet scrubber tower (34) through a pipeline, one end of the inner wall of the wet scrubber tower (34) is connected with an alkali liquor storage tank (341) through a pipeline, the top of the wet scrubber tower (34) is connected with a draught fan (35) through a pipeline, the output end of the draught fan (35) is connected with a regenerative combustion furnace (36) through a pipeline, the output end of the regenerative combustion furnace (36) is connected with a chimney (37) through a pipeline, the bottom of the wet scrubber tower (34) is connected with a circulating water tank (344) through a pipeline, and the left end of the circulating water tank (344) is connected with the precooler (33) through a pipeline, the right end of the circulating water tank (344) is connected with a heat exchanger (343) through a pipeline, the two ends of the right side of the heat exchanger (343) are connected with a cooling tower (342) through a pipeline, and the top of the heat exchanger (343) is connected with the wet washing tower (34) through a pipeline;
the second discharging system (4) comprises a cooling type screw conveyor (41), a discharging scraper conveyor (42) and a discharging storage tank (43), the output end of the cooling type screw conveyor (41) is connected with the discharging scraper conveyor (42) through a pipeline, and the output end of the discharging scraper conveyor (42) is connected with the discharging storage tank (43) through a pipeline;
the single cylinder plunger pump output end passes through pipe connection feed inlet (24), pipe connection is passed through at vertical type multistage harrow formula stove (21) top chimney (37), pipe connection is passed through to vertical type multistage harrow formula stove (21) bottom cooled screw conveyer (41), vertical type multistage harrow formula stove (21) right-hand member passes through pipe connection cyclone (31).
2. The sludge treatment apparatus according to claim 1, wherein: the output end of the combustion fan (22) is connected with a natural gas pipeline (221).
3. The sludge treatment apparatus according to claim 1, wherein: the feed inlet (24) is formed in the inner wall of the top end of the vertical multi-section rake furnace (21).
4. The sludge treatment apparatus according to claim 1, wherein: the outer layer material of the vertical multi-section harrow type furnace (21) is set to be carbon steel.
5. The sludge treatment apparatus according to claim 1, wherein: the interior of the vertical multi-section harrow furnace (21) is built by self-supporting small-angle micro-arch shaped refractory bricks.
6. The sludge treatment apparatus according to claim 1, wherein: the bottom end of the right side of the circulating water tank (344) is connected with an industrial water pipeline.
7. The sludge treatment apparatus according to claim 1, wherein: the multi-section furnace pyrolysis system (2) is connected to the discharging system (1), the tail gas treatment system (3) is connected to the multi-section furnace pyrolysis system (2), and the discharging system II (4) is connected to the multi-section furnace pyrolysis system (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120377208.0U CN214936950U (en) | 2021-02-19 | 2021-02-19 | Sludge treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120377208.0U CN214936950U (en) | 2021-02-19 | 2021-02-19 | Sludge treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214936950U true CN214936950U (en) | 2021-11-30 |
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|---|---|---|---|
| CN202120377208.0U Active CN214936950U (en) | 2021-02-19 | 2021-02-19 | Sludge treatment device |
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| Country | Link |
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| CN (1) | CN214936950U (en) |
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2021
- 2021-02-19 CN CN202120377208.0U patent/CN214936950U/en active Active
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