CN108545908B - Municipal sludge drying and deodorizing treatment equipment - Google Patents
Municipal sludge drying and deodorizing treatment equipment Download PDFInfo
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- CN108545908B CN108545908B CN201810417826.6A CN201810417826A CN108545908B CN 108545908 B CN108545908 B CN 108545908B CN 201810417826 A CN201810417826 A CN 201810417826A CN 108545908 B CN108545908 B CN 108545908B
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
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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
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- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention relates to a drying and deodorizing treatment device for municipal sludge, which comprises a sludge storage tank, a primary treatment device arranged at the lower part of the sludge storage tank, a secondary treatment device connected with the primary treatment device, and a gas treatment device communicated with the primary treatment device and the secondary treatment device; the primary treatment device comprises a heating plate, a top cover arranged on the heating plate, a vibration device arranged at the bottom of the heating plate, and a pushing mechanism and a discharging plate which are respectively arranged at opposite sides of the heating plate, wherein a heating mechanism is arranged in the heating plate, a blowing mechanism is arranged on the heating plate, the secondary treatment device comprises a treatment tank, grinding balls, a sieve plate, a microwave radiation pipe, a gas receiving cover and a treatment tank rotation driving mechanism, the gas treatment device comprises a suction fan, a primary gas conveying pipe and a secondary gas conveying pipe, the ion treatment device is communicated with the ion treatment device, the primary gas conveying pipe is communicated with the top cover, and the secondary gas conveying pipe is communicated with the gas receiving cover.
Description
Technical Field
The invention relates to a drying and deodorizing treatment device for municipal sludge.
Background
At present, sludge is a product after sewage treatment, and is an extremely complex heterogeneous body composed of organic debris, bacterial cells, inorganic particles, colloids and the like. The main characteristics of the sludge are high water content (up to more than 99 percent), high organic matter content, easy decomposition and stink generation, fine particles, small specific gravity and colloidal liquid state. If the sludge is not treated, the sludge can be discharged at will, so that the environment is seriously polluted, but the sludge treatment difficulty is high mainly due to two reasons: firstly, the sludge can dissipate stink, and the stink contains harmful gases such as hydrogen sulfide, nitrogen oxide, ammonia gas and the like; secondly, the water content is high, the drying difficulty is high, the sludge is mechanically dewatered and actually is sludge concentration, biomass and the like are not influenced, and the heating mode of sludge drying is from the outside to the inside, so that a dry hard shell is formed on the surface of a material, the drying time is long, and the material is dried unevenly.
The industry people has conducted extensive research on sludge treatment, and CN103537156 discloses a deodorizing and purifying method for high-temperature and high-humidity tail gas generated by sludge roasting, which treats odor through a method of circulating spraying of a venturi absorption unit and absorption liquid. CN107857461A discloses a sludge drying device, including the mounting panel, many founding legs of bottom side fixedly connected with of mounting panel, fixedly connected with runs through the heating bucket of mounting panel on the mounting panel, fixedly connected with heating inner bag on the inner wall of heating bucket, the inside fixedly connected with heating wire of heating inner bag, a plurality of lugs of fixedly connected with on the interior roof of heating bucket, it is equipped with the slide rail to slide on a plurality of lugs, one side fixedly connected with centrifugal roof of lug is kept away from to the slide rail, the stand of a plurality of annular equipartitions of one side fixedly connected with of slide rail is kept away from to the centrifugal roof. The invention can not give consideration to both deodorization and sufficient and uniform drying, and if harmful bacteria exist in the sludge, the risk of environmental pollution after the sludge is put into the device still exists.
In view of the above, there is a need to provide a treatment apparatus that can thoroughly solve the problem of sludge contamination.
Disclosure of Invention
The invention aims to provide a drying and deodorizing treatment device for municipal sludge, which can effectively dry the sludge, eliminate odor, inactivate microbial bacteria and realize sludge harmlessness.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
an urban sludge drying and deodorizing treatment device comprises a sludge storage tank, a primary treatment device arranged at the lower part of the sludge storage tank, a secondary treatment device connected with the primary treatment device, and a gas treatment device communicated with the primary treatment device and the secondary treatment device;
a discharge port is formed in the lower part of the sludge storage tank, and a discharge valve is mounted on the discharge port;
the primary treatment device comprises a heating plate, a top cover arranged on the heating plate, a vibration device arranged at the bottom of the heating plate, and a pushing mechanism and a discharging plate which are respectively arranged on opposite sides of the heating plate, wherein a heating mechanism is arranged in the heating plate, a blowing mechanism is arranged on the heating plate, a feeding hole is arranged on the top cover, and the feeding hole is connected with a discharging hole of the sludge storage tank through an elastic connecting piece;
the secondary treatment device comprises a treatment tank, a grinding ball, a sieve plate, a microwave radiation pipe, a gas receiving cover and a treatment tank rotation driving mechanism, wherein the sieve plate is arranged in the middle of the treatment tank, the grinding ball is placed on the sieve plate, the microwave radiation pipe and the gas receiving cover are correspondingly arranged above the grinding ball, and the tail end of a discharge plate of the primary treatment device extends into the treatment tank;
the gas treatment device comprises a high-energy ion treatment device, a suction fan communicated with the high-energy ion treatment device, a primary gas conveying pipe communicated with the suction fan and a secondary gas conveying pipe, wherein the primary gas conveying pipe is communicated with the top cover, and the secondary gas conveying pipe is communicated with the gas receiving cover.
Furthermore, the pushing mechanism comprises an air cylinder and a pushing plate fixedly connected with a piston rod of the air cylinder.
Furthermore, the heating mechanism comprises a heat source medium box and a heating pipeline arranged in the heating plate in a coiled mode, and two ends of the heating pipeline are connected with the heat source medium box through medium conveying pipes respectively.
Further, the blowing mechanism comprises an air pump and a blowing pipe vertically arranged in the heating plate, and the blowing pipe is communicated with the air pump through an air transmission pipeline.
Furthermore, a support is arranged on the lower portion of the heating plate, and a vibrator is mounted on the support.
Further, the secondary treatment device comprises a guide plate, the guide plate is arranged below the sieve plate, one end of the guide plate is connected with the sieve plate, and the other end of the guide plate corresponds to an outlet of the treatment tank.
Further, the secondary treatment device comprises a scraper, a scraper supporting rib and a supporting rod, wherein the supporting rod is connected with the scraper supporting rib, the scraper supporting rib is connected with the scraper, the scraper is attached to the tank wall and the sieve plate of the treatment tank, and the fixed end of the supporting rod is arranged in front of the treatment tank and forms a running fit with the treatment tank.
Further, handle a jar rotation drive mechanism including setting up at the spacing subassembly of rotation and the rotation drive assembly in the processing jar outside, rotate spacing subassembly including setting up spacing groove on the processing jar with set up in runner in the spacing groove, the rotation drive assembly including set up the tooth chain on the processing jar and with the bevel gear of tooth chain looks adaptation, the bevel gear links to each other with the output shaft of motor, the runner with the motor all sets up on the supporting seat.
Furthermore, the two groups of rotation limiting assemblies are respectively arranged at the upper part and the lower part of the treatment tank, and the rotation driving assembly is arranged at the middle part of the treatment tank.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:
1. in the primary treatment device, the air blowing pipe blows air, the heating plate heats the air, the air circulation is accelerated, the moisture is effectively taken away, and the drying time is effectively reduced.
2. In the secondary treatment device, the rotary treatment tank is beneficial to the rolling of sludge, the agglomeration of grinding balls and sludge and the continuous collision of the wall of the treatment tank, so that the sludge is crushed, and the microwave radiates the crushed sludge to fulfill the aims of sterilization and full drying.
3. Through primary treatment device and secondary treatment device cooperation processing, primary treatment device realizes preliminary dry caking, and secondary treatment device realizes the deep drying, makes the foul smell effectively get rid of, and the inside moisture of mud obtains fully dry, and the microorganism is changed into organic matter, and mud has obtained minimizing, innoxious effective treatment.
4. The equipment is designed according to the characteristics of the sludge, has compact integral structure and can realize continuous operation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a schematic view of the sludge pushing state of the present invention;
FIG. 4 is a schematic view of the hot plate and pushing mechanism of the present invention;
in the drawings:
1 sludge storage tank, 11 discharge ports, 12 discharge valves, 13 elastic connecting pieces, 22 top covers, 23 discharge plates, 25 gas blowing pipes, 26 heating pipelines, 28 cylinders, 29 pushing plates, 210 supports, 211 primary sludge discharge channels, 31 treatment tanks, 34 microwave radiation pipes, 35 gas collecting covers, 36 guide plates, 37 scraper supporting ribs, 38 scrapers, 39 limiting grooves, 310 rotating wheels, 311 toothed chains, 312 umbrella wheels, 313 motors, 41 high-energy ion treatment devices, 42 suction fans, 43 primary gas conveying pipes, 44 secondary gas conveying pipes, 100 sludge powder storage tanks, 5 heat source media, 51 media conveying pipes, 52 tee joints, 6 gas pumps, 61 gas conveying pipelines, 7 vibrators and 8 supporting seats.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail and fully with reference to the following embodiments.
As shown in the attached figures 1 and 2, the municipal sludge drying and deodorizing equipment comprises a sludge storage tank 1, a primary treatment device arranged at the lower part of the sludge storage tank 1, a secondary treatment device connected with the primary treatment device, and a gas treatment device communicated with the primary treatment device and the secondary treatment device.
The mud storage jar upper portion area lid of this embodiment, the lower part is provided with discharge gate 11, install discharge valve 12 on the discharge gate 11, discharge valve 12 is used for controlling the discharge gate ejection of compact.
As shown in fig. 3 and 4, the primary treatment device of this embodiment includes a heating plate, a top cover 22 is disposed on an upper portion of the heating plate, a pushing mechanism is disposed on one side of the heating plate 22, a discharging plate 23 is disposed on a side opposite to the pushing mechanism, the pushing mechanism includes a cylinder 28 and a pushing plate 29 fixedly connected to a piston rod of the cylinder 28, the cylinder starts the piston rod to push the pushing plate 29 to push sludge on the heating plate out of the discharging plate 23, the top cover 22 is used for covering the heating plate, the pushing mechanism 22 and the discharging plate 23 to form a heating space, so that the top cover 22 can be designed to be adapted to the shapes of the corresponding heating plate, the discharging plate 23 and the discharging mechanism, for example, the top cover 22 of the corresponding portion of the discharging plate 23 and the discharging plate 23 is inclined downward to form a primary sludge discharging channel 211.
The heating plate inner disc is provided with a heating pipeline 26, and two ends of the heating pipeline 26 are respectively connected with the heat source medium box 5 through medium conveying pipes 51. Be provided with the mechanism of blowing on the heating plate, the mechanism of blowing including vertical set up in blow pipe 25 in the heating plate, blow pipe 25 passes through gas transmission pipeline 61 and 6 intercommunications of air pump, and the heating medium in the heating pipeline 26 heats the heating plate, and blow pipe 25 realizes rolling of mud from the bottom up through the blowing, takes away moisture simultaneously.
The heating plate lower part is provided with support 210, install vibrator 7 on the support 210, vibrator 7 vibrates to realize the flattening of mud and weak vibration so that moisture overflows. Be provided with the feed inlet on the overhead guard 22, the feed inlet pass through elastic connection piece 13 with the discharge gate 11 of mud storage jar 1 links to each other to the vibration that realizes the heating plate does not influence the being connected with mud storage jar.
The second-stage treatment device 3 of this embodiment is including handling jar 31, ball, sieve, microwave radiation pipe 34, receiving gas cover 35, deriving board 36, scraper blade 38 and handling jar rotation drive mechanism, the sieve install in the middle part of handling jar 31, the ball place in on the sieve, microwave radiation pipe 34 and receiving gas cover 35 correspond the setting and are in the top of ball is fixed at the screen cloth top middle part of handling jar 31 promptly, microwave radiation pipe 34 and receiving gas cover 35 do not rotate along with handling jar 35, and microwave radiation pipe 34 is connected with microwave generator (not shown in the figure), receives gas cover 35 and is connected with the suction fan. The tail end of the discharge plate 23 of the primary treatment device 2 extends into the treatment tank 31 and is used for feeding materials to the treatment tank 31. The leading-out plate 36 is arranged below the sieve plate, one end of the leading-out plate is connected with the sieve plate, and the other end of the leading-out plate corresponds to the outlet of the processing tank 31. Scraper blade 38 is for taking angle sheet structure, scraper blade 38 sets up on the sieve, one side of angle with handle jar 31 the laminating of jar wall, another side and sieve laminating, scraper blade 38 with one side length of sieve laminating is half of sieve diameter, be provided with scraper blade brace rod 37 on the scraper blade 38, be provided with the bracing piece on the scraper blade brace rod 37, the stiff end of bracing piece sets up outside handling jar 31.
The treatment tank rotation driving mechanism of this embodiment is including setting up the spacing subassembly of rotation and the rotation driving assembly in the treatment tank 31 outside, it is including setting up to rotate the spacing subassembly the spacing groove 39 on the treatment tank 31 with set up in runner 310 in the spacing groove 39, it is including setting up to rotate the driving assembly the tooth chain 311 on the treatment tank 31 and with the bevel gear 312 of tooth chain 311 looks adaptation, bevel gear 312 links to each other with the output shaft of motor 313, runner 310 with motor 313 all sets up on supporting seat 8.
The rotation limiting assemblies are two groups and are respectively arranged at the upper part and the lower part of the treatment tank 31, and the rotation driving assembly is arranged at the middle part of the treatment tank 31, so that the stable rotation can be ensured.
The gas treatment device of the embodiment comprises a high-energy ion treatment device 41, a suction fan 42 communicated with the high-energy ion treatment device 41, a primary gas conveying pipe 43 and a secondary gas conveying pipe 44 communicated with the suction fan 42, wherein the primary gas conveying pipe 42 is communicated with the top cover 22, and the secondary gas conveying pipe 44 is communicated with the gas collecting cover 35 and is used for collecting and treating odor in the primary treatment device and the secondary treatment device. The high-energy ion treatment device emits high-energy positive and negative ions by the ion generating device, and the high-energy positive and negative ions are contacted with hydrogen sulfide and ammonia in the malodorous gas to open molecular chemical bonds of the malodorous gas and decompose the malodorous gas into carbon dioxide and water, thereby achieving the aim of deodorization.
The using method of the invention is as follows:
opening a valve 12, allowing sludge stored in a sludge storage tank to fall onto a heating plate 21 from a discharge port 11, spreading the sludge on the heating plate by the heating plate 21 under the vibration of a vibrator 7, blowing by an air blowing pipe, heating the heating plate, accelerating air circulation, effectively taking away moisture, when the sludge is dried to a certain degree, hardening into blocks, starting an air cylinder 28, pushing sludge blocks by a piston rod 29 of the air cylinder 28 to enter a secondary treatment device from a discharge plate 23, opening the valve 12 again, continuing the primary treatment device, rapidly rotating a treatment tank of the secondary treatment device, colliding grinding balls with the sludge blocks and the wall of the treatment tank to crush the sludge, radiating the crushed sludge by microwaves to achieve the purposes of sterilization and drying, allowing the sludge to fall from sieve holes after being crushed to a certain degree, and entering a sludge powder storage tank 100 through a guide plate 36, in the whole process, gas in the primary treatment device and the secondary treatment device is sucked into the high-energy ion treatment device through the suction fan to be treated, and then is cooled and discharged, so that the harmless treatment of the sludge is completed.
The treatment equipment provided by the invention is designed according to the characteristics of sludge, has a compact structure, and can realize harmless treatment of the sludge.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. The municipal sludge drying and deodorizing equipment is characterized by comprising a sludge storage tank (1), a primary treatment device arranged at the lower part of the sludge storage tank (1), a secondary treatment device connected with the primary treatment device, and a gas treatment device communicated with the primary treatment device and the secondary treatment device;
a discharge hole (11) is formed in the lower portion of the sludge storage tank (1), and a discharge valve (12) is mounted on the discharge hole (11);
the primary treatment device comprises a heating plate, a top cover (22) arranged on the heating plate, a vibration device arranged at the bottom of the heating plate, and a pushing mechanism and a discharging plate (23) which are respectively arranged at opposite sides of the heating plate, wherein a heating mechanism is arranged in the heating plate, a blowing mechanism is arranged on the heating plate, a feeding hole is arranged on the top cover, and the feeding hole is connected with a discharging hole (11) of the sludge storage tank (1) through an elastic connecting piece (13);
the secondary treatment device comprises a treatment tank (31), grinding balls, a sieve plate, microwave radiation pipes (34), a gas receiving cover (35) and a treatment tank rotation driving mechanism, wherein the sieve plate is arranged in the middle of the treatment tank (31), the grinding balls are placed on the sieve plate, the microwave radiation pipes (34) and the gas receiving cover (35) are correspondingly arranged above the grinding balls, and the tail end of a discharge plate (23) of the primary treatment device extends into the treatment tank (31);
the gas treatment device comprises a high-energy ion treatment device (41), a suction fan (42) communicated with the high-energy ion treatment device, a primary gas conveying pipe (43) and a secondary gas conveying pipe (44) communicated with the suction fan, the primary gas conveying pipe (42) is communicated with the top cover (22), and the secondary gas conveying pipe (44) is communicated with the gas collecting cover (35).
2. The municipal sludge drying and deodorizing equipment according to claim 1, wherein the pushing mechanism comprises an air cylinder (28) and a pushing plate (29) fixedly connected with a piston rod of the air cylinder (28).
3. The municipal sludge drying and deodorizing equipment according to claim 1, wherein the heating mechanism comprises a heat source medium box (5) and a heating pipe (26) coiled inside the heating plate, and both ends of the heating pipe (26) are respectively connected with the heat source medium box (5) through a medium conveying pipe (51).
4. The municipal sludge drying and deodorizing equipment according to claim 1, wherein the blowing mechanism comprises an air pump (6) and a blowing pipe (25) vertically arranged in the heating plate, and the blowing pipe (25) is communicated with the air pump (6) through an air transmission pipeline (61).
5. The municipal sludge drying and deodorizing equipment according to claim 1, wherein a support (210) is provided under said heating pan, and a vibrator (7) is mounted on said support (210).
6. The municipal sludge drying and deodorizing equipment according to claim 1, wherein the secondary treatment device comprises a guide plate (36), the guide plate (36) is disposed under the sieve plate, one end of the guide plate is connected with the sieve plate, and the other end of the guide plate corresponds to the outlet of the treatment tank (31).
7. The municipal sludge drying and deodorizing equipment according to claim 1, wherein the secondary treatment device comprises a scraper (38), a scraper supporting rib (37) and a support rod, the support rod is connected with the scraper supporting rib (37), the scraper supporting rib (37) is connected with the scraper (38), the scraper (38) is attached to the tank wall and the sieve plate of the treatment tank (31), and the fixed end of the support rod is arranged in front of the treatment tank (31) and forms a running fit with the treatment tank (31).
8. The municipal sludge drying and deodorizing equipment according to claim 1, wherein said tank rotation driving mechanism comprises a mechanism disposed in the tank (31))The rotation limit assembly and the rotation drive assembly in outside, rotate limit assembly including setting up spacing groove (39) on the processing jar (31) with set up in runner (310) in spacing groove (39), rotation drive assembly is including setting up handle tooth chain (311) on jar (31) and with the bevel gear of tooth chain (311) looks adaptation, bevel gear (312) link to each other with the output shaft of motor (313), runner (310) with motor (313) all set up on supporting seat (8).
9. The municipal sludge drying and deodorizing equipment according to claim 1, wherein the two sets of rotation limiting assemblies are respectively disposed at the upper and lower parts of the treatment tank (31), and the rotation driving assembly is disposed at the middle part of the treatment tank (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810417826.6A CN108545908B (en) | 2018-05-04 | 2018-05-04 | Municipal sludge drying and deodorizing treatment equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810417826.6A CN108545908B (en) | 2018-05-04 | 2018-05-04 | Municipal sludge drying and deodorizing treatment equipment |
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| CN108545908A CN108545908A (en) | 2018-09-18 |
| CN108545908B true CN108545908B (en) | 2021-10-15 |
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| CN201810417826.6A Active CN108545908B (en) | 2018-05-04 | 2018-05-04 | Municipal sludge drying and deodorizing treatment equipment |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2484307Y (en) * | 2001-06-29 | 2002-04-03 | 易扬直 | Sterilized discharger for toilet on train |
| CN101700953A (en) * | 2009-11-20 | 2010-05-05 | 齐冰 | Environmental hygiene processing system of monomer dispersing type urban sewage source |
| CN104163555A (en) * | 2014-07-10 | 2014-11-26 | 浙江大学 | Consecutive reaction apparatus for moisture sludge through anhydration and pyrolysis under microwave irradiation as well as method thereof |
| CN106927663A (en) * | 2015-12-31 | 2017-07-07 | 河南勃达微波装备股份有限公司 | A kind of Rapid microwave treatment method of petroleum sludge |
| CN107399898A (en) * | 2017-09-04 | 2017-11-28 | 福建清道夫环保科技有限公司 | A kind of sludge dewatering and the method for degraded |
-
2018
- 2018-05-04 CN CN201810417826.6A patent/CN108545908B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2484307Y (en) * | 2001-06-29 | 2002-04-03 | 易扬直 | Sterilized discharger for toilet on train |
| CN101700953A (en) * | 2009-11-20 | 2010-05-05 | 齐冰 | Environmental hygiene processing system of monomer dispersing type urban sewage source |
| CN104163555A (en) * | 2014-07-10 | 2014-11-26 | 浙江大学 | Consecutive reaction apparatus for moisture sludge through anhydration and pyrolysis under microwave irradiation as well as method thereof |
| CN106927663A (en) * | 2015-12-31 | 2017-07-07 | 河南勃达微波装备股份有限公司 | A kind of Rapid microwave treatment method of petroleum sludge |
| CN107399898A (en) * | 2017-09-04 | 2017-11-28 | 福建清道夫环保科技有限公司 | A kind of sludge dewatering and the method for degraded |
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| CN108545908A (en) | 2018-09-18 |
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Effective date of registration: 20210924 Address after: 516100 Da Ling tou, Xiakeng village, Shiba Town, BOLUO County, Huizhou City, Guangdong Province Applicant after: Huizhou Zhongyuan huannong Biotechnology Co.,Ltd. Address before: 450003 No. 2502, building 1, yard 72, Nongye Road, Jinshui District, Zhengzhou City, Henan Province Applicant before: Yu Jia |
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Denomination of invention: A device for drying and deodorizing municipal sludge Effective date of registration: 20221229 Granted publication date: 20211015 Pledgee: China Co. truction Bank Corp Boluo branch Pledgor: Huizhou Zhongyuan huannong Biotechnology Co.,Ltd. Registration number: Y2022980029354 |