CN114853311B - Sludge wall breaking related device - Google Patents
Sludge wall breaking related device Download PDFInfo
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- CN114853311B CN114853311B CN202210503038.5A CN202210503038A CN114853311B CN 114853311 B CN114853311 B CN 114853311B CN 202210503038 A CN202210503038 A CN 202210503038A CN 114853311 B CN114853311 B CN 114853311B
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- fixedly connected
- motor
- sludge
- main body
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- 239000010802 sludge Substances 0.000 title claims abstract description 57
- 230000007246 mechanism Effects 0.000 claims abstract description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 238000000605 extraction Methods 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims description 8
- 239000007921 spray Substances 0.000 claims description 7
- 239000008187 granular material Substances 0.000 claims description 3
- 238000003809 water extraction Methods 0.000 claims 1
- 150000001413 amino acids Chemical class 0.000 abstract description 12
- 239000000126 substance Substances 0.000 abstract description 11
- 210000002421 cell wall Anatomy 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 18
- 239000000463 material Substances 0.000 description 12
- 241000894006 Bacteria Species 0.000 description 10
- 210000000170 cell membrane Anatomy 0.000 description 10
- 230000000694 effects Effects 0.000 description 7
- 210000004027 cell Anatomy 0.000 description 6
- 238000005119 centrifugation Methods 0.000 description 6
- 239000006228 supernatant Substances 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 102000004190 Enzymes Human genes 0.000 description 3
- 108090000790 Enzymes Proteins 0.000 description 3
- 239000012065 filter cake Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000010954 inorganic particle Substances 0.000 description 1
- 239000010808 liquid waste Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000003756 stirring Methods 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
- C02F11/13—Treatment of sludge; Devices therefor by de-watering, drying or thickening by heating
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/20—Sludge processing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (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)
- Centrifugal Separators (AREA)
Abstract
The invention relates to the technical field of sludge treatment, in particular to a sludge wall breaking related device, which comprises a main body, wherein a base is arranged at the bottom of the main body, a centrifugal mechanism is arranged in the base, a sludge inlet pipe is fixedly connected to the side wall of the main body, a slitting mechanism is arranged on the side wall of the main body, the slitting mechanism comprises a second motor, a second rotating shaft is fixedly connected to the output end of the second motor, a slitting plate is fixedly connected to one end of the second rotating shaft far away from the second motor, the position of the slitting plate corresponds to the tail end of the sludge inlet pipe, a slitting hole is formed in the slitting plate, a water inlet mechanism is arranged on the side wall of the main body, an adjusting mechanism is arranged at the top of the main body, and an extraction mechanism is arranged at the top of the main body. The invention has reasonable structure, can destroy the cell walls of the organisms in the sludge to obtain amino acids in the organisms, and fully utilizes the effective substances in the sludge.
Description
Technical Field
The invention relates to the field of sludge treatment, in particular to a sludge wall breaking related device.
Background
Sludge is an extremely complex non-homogeneous mass composed of organic flakes, bacterial cells, inorganic particles, colloids, etc. The main characteristics of the sludge are high organic matter content, easy decomposition and stinking, finer particles, smaller specific gravity and colloidal liquid state. It is a thick matter between liquid and solid and can be transported by a pump, but it is difficult to perform solid-liquid separation by sedimentation.
Sludge is solid, semi-solid and liquid waste produced by sewage treatment, and because the sludge contains a large amount of organic matters, pathogenic bacteria and the like, if the sludge is treated at will, the surrounding environment is polluted, and some effective substances in the sludge cannot be utilized, so that the biological cell walls in the sludge can be damaged in production application, amino acids in organisms are obtained, and the effective substances in the sludge are fully utilized.
The applicant has found through the search that chinese patent discloses a "surplus sludge broken wall device", its application number is "202110333245.6", and this patent is mainly through being equipped with the blade in the cavity, and then can carry out broken wall processing to mud cell, but the blade volume is great and can only carry out the slabbing to the mud above the cavity, can't handle the mud that the cavity bottom precipitated, can not carry out the broken wall to the thallus in the mud that also can be fine, can not be fine draw the active substance in the mud, inconvenient to use.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a sludge wall breaking related device.
In order to achieve the above purpose, the present invention adopts the following technical scheme: the utility model provides a mud broken wall relevant device, includes the main part, the base is installed to the bottom of main part, the internally mounted of base has centrifugal mechanism, the lateral wall fixedly connected with mud admission pipe of main part, the lateral wall of main part is installed and is cut the mechanism, it includes the second motor to cut the mechanism, the output fixedly connected with second pivot of second motor, the one end fixedly connected with that the second motor was kept away from to the second pivot cuts the piece, and divides sliced position and the terminal correspondence of mud admission pipe, cut the inside of piece and offered and cut the hole, and cut the quantity in hole and be a plurality of, the water inlet mechanism is installed to the lateral wall of main part, adjustment mechanism is installed at the top of main part, extraction mechanism is installed at the top of main part.
As a further description of the above technical solution:
the centrifugal mechanism comprises a first motor, a first rotating shaft and a rotating rod, wherein the first motor is arranged in the base, the output end of the first motor is fixedly connected with the first rotating shaft, one end of the first rotating shaft, far away from the first motor, is fixedly connected with the rotating rod, and the rotating rod is located in the main body.
As a further description of the above technical solution:
the water inlet mechanism comprises a water inlet pipe and a spray head, the water inlet pipe is arranged on the side wall of the main body, and the spray head is fixedly connected with the tail end of the water inlet pipe.
As a further description of the above technical solution:
the adjusting mechanism comprises a third motor, the third motor is installed at the top of the main body, the output end of the third motor is fixedly connected with a telescopic rod, one end of the telescopic rod, which is far away from the third motor, is fixedly connected with a fixing plate, the fixing plate is located inside the main body, and fixing holes are formed in the fixing plate.
As a further description of the above technical solution:
the extraction mechanism comprises a pump machine, the pump machine is installed at the top of main part, the output fixedly connected with connecting pipe of pump machine, and the lateral wall of connecting pipe passes fixed orifices and fixed plate fixed connection, the terminal fixedly connected with connector of connecting pipe, the bottom of connector is provided with filtering gauze, and the connector is located the inside of main part.
As a further description of the above technical solution:
the heating wires are arranged at the bottom of the main body, and the number of the heating wires is a plurality of.
As a further description of the above technical solution:
the side wall of the main body is fixedly connected with a discharge pipe, and a valve is arranged in the discharge pipe.
As a further description of the above technical solution:
the bottom of base is provided with the stand foot, the bottom fixedly connected with antiskid sheet of stand foot, and the surface of antiskid sheet is provided with anti-skidding line.
The invention has the following beneficial effects:
1. compared with the prior art, this relevant device of mud broken wall through second motor, second pivot, slicing, cut the hole for the device can cut the inside mud of entering device when using, reduces the volume of mud, changes the state of mud, compares in adding the inside long banding and massive mud of volume great in the device, and small-volume mud granule can dissolve in the aquatic fast, and then the device of being convenient for can carry out quick broken wall to the bacterium in the mud etc. material, makes the inside amino acid of bacterium etc. material can dissolve in the mixed liquid.
2. Compared with the prior art, the device related to the wall breaking of the sludge is characterized in that the device can rapidly stir the internal mixed liquid through the first motor, the first rotating shaft and the rotating rod when in use, bacteria and other substances in the sludge are broken after water absorption, amino acid and other substances in the sludge can be dissolved into water, and the device is convenient for extracting the amino acid and other substances.
3. Compared with the prior art, the sludge wall-breaking related device has the advantages that through the electric heating wire, the device can heat the mixed liquid in the device when in use, the temperature of the mixed liquid is increased, compared with the normal temperature state, the temperature of the mixed liquid is increased, the activity of enzymes in cell membranes can be changed, the selective permeability of the cell membranes is changed, and substances in the cells are conveniently dissolved in water.
Drawings
Fig. 1 is a schematic diagram of a first view overall structure of a sludge wall breaking related device according to the present invention;
fig. 2 is a schematic diagram of the overall structure of the sludge wall breaking related device according to the second view angle;
fig. 3 is a sectional view of the internal structure of the sludge wall breaking related device according to the present invention;
fig. 4 is an enlarged view of the structure of fig. 3 a of the sludge wall breaking related device according to the present invention.
Legend description:
1. a main body; 2. a base; 3. a centrifugal mechanism; 301. a first motor; 302. a first rotating shaft; 303. a rotating rod; 4. a sludge inlet pipe; 5. a slitting mechanism; 501. a second motor; 502. a second rotating shaft; 503. slicing; 504. cutting holes; 6. heating wires; 7. a discharge pipe; 8. a water inlet mechanism; 801. a water inlet pipe; 802. a spray head; 9. an adjusting mechanism; 901. a third motor; 902. a telescopic rod; 903. a fixing plate; 904. a fixing hole; 10. an extraction mechanism; 1001. a pump machine; 1002. a connecting pipe; 1003. and (5) a connector.
Detailed Description
Referring to fig. 1, fig. 2, fig. 3 and fig. 4, the sludge wall breaking related device provided by the invention is as follows: comprises a main body 1, a base 2 is arranged at the bottom of the main body 1, a centrifugal mechanism 3 is arranged in the base 2, mixed liquid in the device is stirred and centrifuged through the centrifugal mechanism 3, bacteria in sludge are broken, substances such as amino acid and the like in the device are dissolved into water, the device is convenient for separating effective substances in the bacteria, the side wall of the main body 1 is fixedly connected with a sludge inlet pipe 4, the device can add sludge into the device when in use through the sludge inlet pipe 4, a slitting mechanism 5 is arranged on the side wall of the main body 1, the device can slit the sludge added into the device when in use through the slitting mechanism 5, so that the sludge presents a small-volume granular structure, and compared with a conventional large-sized sludge cluster, the small-sized sludge can be dissolved into water more quickly, the substances such as bacteria in the sludge are broken wall rapidly by the device, the slitting mechanism 5 comprises a second motor 501, the second motor 501 controls the second rotating shaft 502 to rotate so as to drive the slicing plates 503 to rotate, the output end of the second motor 501 is fixedly connected with the second rotating shaft 502, one end of the second rotating shaft 502 away from the second motor 501 is fixedly connected with the slicing plates 503, the position of each slicing plate 503 corresponds to the tail end of the sludge inlet pipe 4, the tail end of the sludge inlet pipe 4 is attached to the side wall of each slicing plate 503, the inside of each slicing plate 503 is provided with a plurality of slicing holes 504, the number of the slicing holes 504 is multiple, the slicing plates 503 rotate, so that the sludge discharged from the sludge inlet pipe 4 can intermittently pass through the slicing holes 504, the sludge is sliced into a plurality of sludge particles with smaller volumes, the sludge particles are convenient to dissolve by the device, the side wall of the main body 1 is provided with the water inlet mechanism 8, water flow can be added into the device through the water inlet mechanism 8, the device is convenient for dissolve mud, and then the device is broken wall after carrying out centrifugation to the bacterium in the mud etc. material, and adjustment mechanism 9 is installed at the top of main part 1, can adjust extraction mechanism 10's position through adjustment mechanism 9, and extraction mechanism 10 is installed at the top of main part 1, and the device of being convenient for contains the supernatant of amino acid etc. material after the device is inside centrifugation and carries out the extraction.
The centrifugal mechanism 3 comprises a first motor 301, a first rotating shaft 302 and a rotating rod 303, the first motor 301 is installed in the base 2, the output end of the first motor 301 is fixedly connected with the first rotating shaft 302, one end of the first rotating shaft 302, which is far away from the first motor 301, is fixedly connected with the rotating rod 303, the rotating rod 303 is located in the main body 1, and the rotating rod 303 can be driven to rotate through the operation of the first motor 301, so that the sludge mixed liquid in the device is stirred and centrifuged, insoluble massive impurities in the sludge can be deposited at the bottom of the device, amino acids and other effective substances are dissolved in supernatant, the water inlet mechanism 8 comprises a water inlet pipe 801 and a spray head 802, the water inlet pipe 801 is installed on the side wall of the main body 1, the tail end of the water inlet pipe 801 is fixedly connected with the spray head 802, and the device can be added with water flow in the device when in use through the water inlet mechanism 8, and the sludge can be dissolved conveniently.
The adjustment mechanism 9 includes third motor 901, the top at main part 1 is installed to third motor 901, the output fixedly connected with telescopic link 902 of third motor 901, the one end fixedly connected with fixed plate 903 of telescopic link 902 keeping away from third motor 901, work through third motor 901 and can control fixed plate 903 and go up and down, and then make the device can control connector 1003 when using and reciprocate, make connector 1003 can extract the supernatant after the inside centrifugation of device better, and fixed plate 903 is located the inside of main part 1, fixed hole 904 has been seted up to the inside of fixed plate 903, can be connected with connecting pipe 1002 and fixed plate 903 through the fixed hole 904, the pumping mechanism 10 includes pump 1001, the top at main part 1 is installed to pump 1001, the output fixedly connected with connecting pipe 1002 of pump 1001, connecting pipe 1002 is material constitution such as hose or bellows, and the lateral wall of connecting pipe 1002 passes fixed hole 904 and fixed plate 903 fixedly connected with, the end fixedly connected with of 1002 has connector 1003, make connector 1003 move down through third motor control connector 1003 after the inside centrifugation of device, and make connector 1003 carry out the inside centrifugation, can be connected with filter the inside filter cake to the inside of filter mud through the filter cake, can be reached in order to filter the inside of filter cake, can be filtered mud is reached to the inside of main part 1, can be filtered mud is reached.
The heating wire 6 is installed to the bottom of main part 1, heating wire 6's quantity is a plurality of, through heating wire 6, make the device can heat the mixed liquid of inside when using, improve the temperature of mixed liquid, compare in normal atmospheric temperature state, improve the temperature of mixed liquid, can change the activity of enzyme in the cell membrane, thereby change the permselectivity of cell membrane, the material in the cell dissolves in the aquatic, the lateral wall fixedly connected with discharge pipe 7 of main part 1, the internally mounted of discharge pipe 7 has the valve, make the device can discharge the impurity of inside sediment after using through discharge pipe 7, the bottom of base 2 is provided with the standing foot, the bottom fixedly connected with antiskid sheet of standing foot, and the surface of antiskid sheet is provided with anti-skidding line, the stability of increase device.
Working principle: during the use, add rivers in earlier inlet tube 801, add mud in the mud admission pipe 4, afterwards start second motor 501, make the device can cut the inside mud of entering device when using, reduce the volume of mud, change the state of mud, compare in the inside long banding and massive mud of adding the volume in device, small volume's mud granule can dissolve in the water fast, and then the device can carry out the quick broken wall to the material such as bacterium in the mud, make the inside amino acid of bacterium and other material can dissolve in mixed liquid, afterwards start first motor 301, make the device can carry out the rapid mixing to inside mixed liquid when using, let the bacterium and other material in the mud break after absorbing water, the inside amino acid and other material can dissolve in the water, be convenient for the device and extract amino acid and other material, and be circular telegram for 6 when the centrifugation, make the device can heat inside mixed liquid, improve mixed liquid's temperature, compare normal atmospheric temperature state, improve mixed liquid's temperature, can change the inside amino acid and other material can dissolve in the cell membrane, can remove the filter effect of enzyme in the cell membrane can change the cell membrane, can remove the inside filtration plate and remove the supernatant fluid through the filter plate in the cell membrane 903, can be removed in the filter effect is achieved to the inside the cell membrane, the supernatant fluid is removed through the filter plate is removed in the cell membrane is removed, the filter effect is achieved at the end, the cell supernatant fluid is removed, the filter effect is achieved, the cell is accomplished through the filter effect is accomplished.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present invention.
Claims (8)
1. Sludge wall breaking related device, including main part (1), its characterized in that: the utility model provides a water extraction mechanism, including main part (1), base (2) are installed to the bottom of main part (1), the internally mounted of base (2) has centrifugal mechanism (3), the lateral wall fixedly connected with mud admission pipe (4) of main part (1), slitting mechanism (5) are installed to the lateral wall of main part (1), slitting mechanism (5) include second motor (501), the output fixedly connected with second pivot (502) of second motor (501), the one end fixedly connected with of second motor (501) is kept away from to second pivot (502) cuts piece (503), and the position of cutting piece (503) corresponds with the end of mud admission pipe (4), and the end of mud admission pipe (4) is laminated mutually with the lateral wall of cutting piece (503), the inside of cutting piece (503) has been seted up and has been cut hole (504), and the quantity of cutting hole (504) is a plurality of, through cutting piece (503) and rotate for the discharged mud can pass in mud admission pipe (4) and cut hole (504) intermittently to cut into a plurality of volume of mud, granule (8) of main part (1) are installed to the top mechanism (8).
2. The sludge wall breaking related device according to claim 1, wherein: the centrifugal mechanism (3) comprises a first motor (301), a first rotating shaft (302) and a rotating rod (303), wherein the first motor (301) is installed inside the base (2), the output end of the first motor (301) is fixedly connected with the first rotating shaft (302), one end, far away from the first motor (301), of the first rotating shaft (302) is fixedly connected with the rotating rod (303), and the rotating rod (303) is located inside the main body (1).
3. The sludge wall breaking related device according to claim 1, wherein: the water inlet mechanism (8) comprises a water inlet pipe (801) and a spray head (802), wherein the water inlet pipe (801) is arranged on the side wall of the main body (1), and the spray head (802) is fixedly connected with the tail end of the water inlet pipe (801).
4. The sludge wall breaking related device according to claim 1, wherein: adjustment mechanism (9) are including third motor (901), the top in main part (1) is installed to third motor (901), the output fixedly connected with telescopic link (902) of third motor (901), one end fixedly connected with fixed plate (903) that third motor (901) were kept away from to telescopic link (902), and fixed plate (903) are located the inside of main part (1), fixed hole (904) have been seted up to the inside of fixed plate (903).
5. The sludge wall breaking related device according to claim 4, wherein: the extraction mechanism (10) comprises a pump (1001), the pump (1001) is installed at the top of the main body (1), the output end of the pump (1001) is fixedly connected with a connecting pipe (1002), the outer side wall of the connecting pipe (1002) penetrates through a fixing hole (904) and is fixedly connected with a fixing plate (903), the tail end of the connecting pipe (1002) is fixedly connected with a connector (1003), filter gauze is arranged at the bottom of the connector (1003), and the connector (1003) is located inside the main body (1).
6. The sludge wall breaking related device according to claim 1, wherein: the heating wires (6) are arranged at the bottom of the main body (1), and the number of the heating wires (6) is a plurality of.
7. The sludge wall breaking related device according to claim 1, wherein: the side wall of the main body (1) is fixedly connected with a discharge pipe (7), and a valve is arranged in the discharge pipe (7).
8. The sludge wall breaking related device according to claim 1, wherein: the anti-slip sheet is characterized in that a standing foot is arranged at the bottom of the base (2), an anti-slip sheet is fixedly connected to the bottom of the standing foot, and anti-slip lines are arranged on the outer surface of the anti-slip sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210503038.5A CN114853311B (en) | 2022-05-10 | 2022-05-10 | Sludge wall breaking related device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210503038.5A CN114853311B (en) | 2022-05-10 | 2022-05-10 | Sludge wall breaking related device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114853311A CN114853311A (en) | 2022-08-05 |
| CN114853311B true CN114853311B (en) | 2024-02-09 |
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ID=82636606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210503038.5A Active CN114853311B (en) | 2022-05-10 | 2022-05-10 | Sludge wall breaking related device |
Country Status (1)
| Country | Link |
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| CN (1) | CN114853311B (en) |
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| CN112408730A (en) * | 2020-11-18 | 2021-02-26 | 郭进 | Municipal administration mud regeneration resourceful treatment device |
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| CN112973896A (en) * | 2021-03-29 | 2021-06-18 | 合肥祯祥污水处理有限公司 | Excess sludge wall breaking device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102992574B (en) * | 2012-11-08 | 2013-11-27 | 珠海杰思朗环保设备有限公司 | Kinetic energy drying system and method for sludge |
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| CN105217928A (en) * | 2015-10-15 | 2016-01-06 | 苏州市自力化工设备有限公司 | A kind of sludge hot pre-treatment means for breaking walls and method for sludge treatment |
| CN106830589A (en) * | 2017-02-04 | 2017-06-13 | 协赛(上海)生物科技有限公司 | A kind of method that sludge sour water solution extracts microbial amino acid |
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| CN112973896A (en) * | 2021-03-29 | 2021-06-18 | 合肥祯祥污水处理有限公司 | Excess sludge wall breaking device |
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| Publication number | Publication date |
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| CN114853311A (en) | 2022-08-05 |
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