CN112605105A - Organic waste rapid treatment device and process - Google Patents
Organic waste rapid treatment device and process Download PDFInfo
- Publication number
- CN112605105A CN112605105A CN202011483704.0A CN202011483704A CN112605105A CN 112605105 A CN112605105 A CN 112605105A CN 202011483704 A CN202011483704 A CN 202011483704A CN 112605105 A CN112605105 A CN 112605105A
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- waste treatment
- box
- treatment box
- fixedly connected
- feeding
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- 239000010815 organic waste Substances 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000002699 waste material Substances 0.000 claims abstract description 75
- 238000003756 stirring Methods 0.000 claims abstract description 37
- 238000010438 heat treatment Methods 0.000 claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 29
- 108091005804 Peptidases Proteins 0.000 claims abstract description 23
- 239000004365 Protease Substances 0.000 claims abstract description 23
- 102100037486 Reverse transcriptase/ribonuclease H Human genes 0.000 claims abstract description 23
- 238000005086 pumping Methods 0.000 claims abstract description 22
- 238000005303 weighing Methods 0.000 claims description 22
- 239000000376 reactant Substances 0.000 claims description 16
- 238000000354 decomposition reaction Methods 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 5
- 230000009286 beneficial effect Effects 0.000 claims description 4
- 241000894006 Bacteria Species 0.000 claims description 3
- 230000001877 deodorizing effect Effects 0.000 claims description 3
- 238000000855 fermentation Methods 0.000 description 7
- 230000004151 fermentation Effects 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000002361 compost Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 238000009841 combustion method Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000010791 domestic waste Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000000877 morphologic effect Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/40—Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a device and a process for quickly treating organic wastes, wherein the device comprises a waste treatment box, a feeding device, a feeding box and a material pumping pump, wherein a heating sleeve is fixedly sleeved on the outer surface of the waste treatment box, a heating plate is arranged between the heating sleeve and the waste treatment box, the feeding hopper is arranged on the upper surface of the waste treatment box, a first motor is fixedly connected to the upper surface of the waste treatment box, a supporting rod is fixedly connected to the inside of the waste treatment box, and a driving end of the first motor extends to the inside of the waste treatment box and is fixedly connected with a rotating cylinder. According to the invention, the waste is heated at various temperatures, so that the treatment efficiency of the waste is improved, the waste treatment process is more complete, the stirring rod can be longitudinally turned in the rotating and stirring process, the stirring inside the waste treatment box is more uniform, and meanwhile, protease can be quantitatively fed, so that the operation is more convenient.
Description
Technical Field
The invention belongs to the technical field of waste treatment, and particularly relates to a device and a process for quickly treating organic waste.
Background
Organic waste refers to solid, liquid or gaseous organic substances and substances produced in production, life and other activities that lose their original value of use or are discarded or discarded without losing their value of use. According to morphological classification, organic wastes mainly include organic solid wastes, organic waste water, and organic waste gases. Conventional methods for treating domestic or industrial waste generally include landfill methods, combustion methods, and the like.
Although the traditional compost fermentation is low in cost, the traditional compost fermentation has the defects of large occupied space, more needed manpower, high labor intensity, low fermentation efficiency, long time, usually 3-6 months, secondary pollution in the fermentation process, unstable quality of the fermented product, high possibility of being influenced by weather, humidity and the like; incineration methods cause air pollution. And the recyclable part of the organic matter contained in the waste is also disposed of together. Some existing organic waste treatment equipment has an incomplete treatment process, and the organic waste is not uniformly mixed and stirred during fermentation and is not fermented sufficiently.
Disclosure of Invention
The invention aims to solve the problems that the treatment process of organic waste treatment equipment is not complete enough, the mixing and stirring are not uniform enough during fermentation, and the fermentation is not sufficient.
In order to achieve the purpose, the invention adopts the following technical scheme: a rapid organic waste treatment device comprises a waste treatment box, a feeding device, a feeding box and a material pumping pump, wherein a heating sleeve is fixedly sleeved on the outer surface of the waste treatment box, a heating plate is arranged between the heating sleeve and the waste treatment box, a feeding hopper is arranged on the upper surface of the waste treatment box, one end of the waste treatment box is fixedly connected with a first motor, the driving end of the first motor extends to the inside of the waste treatment box and is fixedly connected with a rotating cylinder, and one end of the rotating cylinder is rotatably connected with the inner wall of the waste treatment box; the lower surface of the waste treatment box is fixedly connected with four supporting legs, the side wall of the waste treatment box is provided with a discharge door, a temperature sensor is arranged inside the waste treatment box, and the outer surface of the waste treatment box is provided with a first controller; the inner top wall of the rotating cylinder is fixedly connected with a second motor, the driving end of the second motor is fixedly connected with a rotating main shaft, the outer surface of the rotating main shaft is fixedly sleeved with a worm, one side of the worm is provided with a rotating rod, and two ends of the rotating rod extend to the outside of the rotating cylinder and are fixedly connected with a stirring rod; the hopper under the inside fixedly connected with of charging box, the feed opening has been seted up to the bottom of hopper down, the inner diapire of charging box is provided with weighing sensor, weighing sensor's surface is provided with the weighing plate, the surface of charging box is provided with the second controller, the feed inlet has been seted up on the top of charging box.
As a further description of the above technical solution:
the bottom of the feeding device is provided with a support frame, the feeding device is connected with a feeding hopper, and one side of the feeding hopper is provided with a sealing cover.
As a further description of the above technical solution:
the first controller is respectively electrically connected with the temperature sensor, the first motor and the second motor, and a temperature display, a temperature regulation knob and a stirring control button are arranged on the outer surface of the first controller.
As a further description of the above technical solution:
the fixed worm wheel that has cup jointed in surface middle part position of dwang, the worm wheel is connected with the worm meshing, rolling bearing has been cup jointed to the surface of dwang, rotate through rolling bearing between dwang and the rotating cylinder and be connected.
As a further description of the above technical solution:
the inside sliding connection of feed opening has the baffle, the inside wall fixedly connected with electric telescopic handle of charging box, the one end of baffle pass the lateral wall of feed opening and with electric telescopic handle's flexible end fixed connection.
As a further description of the above technical solution:
and a weight setting button and a weighing display screen are arranged on the surface of the second controller.
As a further description of the above technical solution:
the material pumping end of the material pumping pump is communicated with the side wall of the feeding box, the material discharging end of the material pumping pump is connected with a material pumping pipe, and one end of the material pumping pipe material pumping pump is communicated with the side wall of the waste treatment box.
In order to achieve the purpose, the invention also adopts the following technical scheme:
the rapid organic waste treatment process adopts the rapid organic waste treatment device to treat organic waste, and comprises the following steps:
s1, feeding, namely feeding the waste into a waste treatment box through a feeding device;
s2, preheating, namely preheating the waste to be reacted to 28 ℃ through a heating plate;
s3, feeding, namely adding the decomposition protease in the feeding box into the waste treatment box, and starting a first motor and a second motor through a first controller to uniformly stir the waste and the decomposition protease for 10-15 min;
s4, heating the reactant in the S3 to 28-40 ℃, uniformly stirring, and decomposing and deodorizing by protease;
s5, heating the reactant in the S4 to 40-60 ℃, and uniformly stirring to preliminarily decompose the protease;
s6, heating the reactant in the S5 to 60-80 ℃, and uniformly stirring to finely decompose the protease;
s7, heating the reactant in the S6 to 80-82 ℃, and uniformly stirring to sterilize;
and S8, adding the reactant in the S7 into the beneficial bacterium group, and discharging.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. the invention heats the waste at various temperatures, so that the waste can fully react with the protease, one treatment cycle can be completed within 3 hours, the treatment efficiency of the waste is improved, the operation is simple, and the waste treatment process is more complete.
2. According to the invention, the first motor, the second motor, the worm wheel and the worm are arranged, so that the stirring rod can be longitudinally turned in the rotating and stirring process, the stirring in the waste treatment box is more uniform, and the stirring efficiency is improved.
3. According to the invention, through the arrangement of the baffle, the electric telescopic rod, the weighing plate and the weighing sensor, the weighing value of the weighing sensor can be set according to actual requirements, so that the weighing is carried out before the protease is put into the weighing sensor, the quantitative feeding is convenient, the use is more convenient, and the waste of the protease is avoided.
Drawings
FIG. 1 is a schematic view of the rapid organic waste treatment according to the present invention;
FIG. 2 is a schematic view showing the construction of a waste treatment tank according to the present invention;
FIG. 3 is a schematic view of the construction of the feed box of the present invention;
fig. 4 is a schematic structural view of the rotary cylinder of the present invention.
Illustration of the drawings:
1. a waste treatment tank; 101. a first controller; 102. heating a jacket; 103. heating plates; 104. a feeding hopper; 105. a first motor; 106. a temperature sensor; 107. a stirring rod; 108. a discharge door; 2. a feeding device; 201. a support frame; 3. a feed box; 301. a second controller; 302. a feed inlet; 303. feeding a hopper; 304. a feeding port; 305. a weighing sensor; 306. a weighing plate; 307. a baffle plate; 308. an electric telescopic rod; 4. a material pumping pump; 401. a material pumping pipe; 5. a rotating cylinder; 501. a second motor; 502. a rotating bearing; 503. a worm gear; 504. rotating the main shaft; 505. a worm; 506. rotating the rod; 6. and (5) supporting legs.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, a rapid organic waste treatment process comprises a waste treatment tank 1, a feeding device 2, a feeding tank 3 and a material pumping pump 4, wherein a heating jacket 102 is fixedly sleeved on the outer surface of the waste treatment tank 1, a heating plate 103 is arranged between the heating jacket 102 and the waste treatment tank 1, a feeding hopper 104 is arranged on the upper surface of the waste treatment tank 1, one end of the waste treatment tank 1 is fixedly connected with a first motor 105, a driving end of the first motor 105 extends to the interior of the waste treatment tank 1 and is fixedly connected with a rotating cylinder 5, one end of the rotating cylinder 5 is rotatably connected with the inner wall of the waste treatment tank 1, and the device is convenient to feed and stir;
the lower surface of the waste treatment box 1 is fixedly connected with four supporting legs 6, the side wall of the waste treatment box 1 is provided with a discharge door 108, the interior of the waste treatment box 1 is provided with a temperature sensor 106, the outer surface of the waste treatment box 1 is provided with a first controller 101, and the temperature in the interior of the waste treatment box 1 can be constantly displayed through the temperature sensor 106 so as to be convenient for regulating and controlling the temperature;
the inner top wall of the rotating cylinder 5 is fixedly connected with a second motor 501, the driving end of the second motor 501 is fixedly connected with a rotating main shaft 504, the outer surface of the rotating main shaft 504 is fixedly sleeved with a worm 505, one side of the worm 505 is provided with a rotating rod 506, two ends of the rotating rod 506 extend to the outside of the rotating cylinder 5 and are fixedly connected with a stirring rod 107, and the rotating cylinder 5 can rotate to drive the stirring rod 107 to rotate transversely to stir materials;
Further, the bottom of the feeding device 2 is provided with a support frame 201, the feeding device 2 is connected with the feeding hopper 104, and one side of the feeding hopper 104 is provided with a sealing cover so as to facilitate feeding and facilitate sealing through the sealing cover during waste reaction, so as to improve the reaction effect.
Further, first controller 101 respectively with temperature sensor 106, first motor 105, second motor 501 electric connection, first controller 101 surface is provided with temperature display, temperature regulation and control knob and stirring control button to observe the inside temperature value of waste disposal case 1 through temperature display, and regulate and control the temperature through temperature regulation and control knob, realize inside stirring to inside material through stirring control button.
Further, the worm wheel 503 is fixedly sleeved at the middle position of the outer surface of the rotating rod 506, the worm wheel 503 is meshed with the worm 505, the rotating bearing 502 is sleeved on the outer surface of the rotating rod 506, the rotating rod 506 is rotatably connected with the rotating cylinder 5 through the rotating bearing 502, the rotating rod 506 is conveniently driven, the rotating rod 506 drives the stirring rod 107 to longitudinally rotate, and stirring is more uniform.
Furthermore, the inside of the feed opening 304 is slidably connected with a baffle 307, the inner side wall of the feeding box 3 is fixedly connected with an electric telescopic rod 308, one end of the baffle 307 penetrates through the side wall of the feed opening 304 and is fixedly connected with the telescopic end of the electric telescopic rod 308, and when the weight of protease weighed by the weighing sensor 305 reaches a set value, the baffle 307 blocks the feed opening 304, so that the feeding is prevented from continuing.
Further, a weight setting button and a weighing display screen are provided on the surface of the second controller 301, so that the weight can be conveniently set.
Further, the material pumping end of the material pumping pump 4 is communicated with the side wall of the feeding box 3, the material discharging end of the material pumping pump 4 is connected with a material pumping pipe 401, one end of the material pumping pipe 401 is communicated with the side wall of the waste treatment box 1, and protease can be conveniently thrown in.
A rapid treatment process for organic wastes comprises the following steps:
s1, feeding: throwing the waste into a waste treatment box 1 through a feeding device 2;
s2, preheating: preheating the waste to be reacted to 28 ℃ through a heating plate 103;
s3, adding materials: adding the decomposition protease in the feeding box 3 into the waste treatment box 1, and starting the first motor 105 and the second motor 501 through the first controller 101 to uniformly stir the waste and the decomposition protease for 10-15 min;
s4, heating the reactant in the S3 to 28-40 ℃, uniformly stirring, and decomposing and deodorizing by protease;
s5, heating the reactant in the S4 to 40-60 ℃, and uniformly stirring to preliminarily decompose the protease;
s6, heating the reactant in the S5 to 60-80 ℃, and uniformly stirring to finely decompose the protease;
s7, heating the reactant in the S6 to 80-82 ℃, and uniformly stirring to sterilize the reactant including protease;
and S8, adding the reactant in the S7 into the beneficial bacterium group, and discharging.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The utility model provides an organic waste rapid processing apparatus, includes waste treatment case (1), loading attachment (2), charging box (3) and pump (4), its characterized in that:
the heating sleeve (102) is fixedly sleeved on the outer surface of the waste treatment box (1), a heating plate (103) is arranged between the heating sleeve (102) and the waste treatment box (1), a feeding hopper (104) is arranged on the upper surface of the waste treatment box (1), one end of the waste treatment box (1) is fixedly connected with a first motor (105), the driving end of the first motor (105) extends into the waste treatment box (1) and is fixedly connected with a rotating cylinder (5), and one end of the rotating cylinder (5) is rotatably connected with the inner wall of the waste treatment box (1);
the lower surface of the waste treatment box (1) is fixedly connected with four supporting legs (6), the side wall of the waste treatment box (1) is provided with a discharge door (108), a temperature sensor (106) is arranged inside the waste treatment box (1), and the outer surface of the waste treatment box (1) is provided with a first controller (101);
the inner top wall of the rotating cylinder (5) is fixedly connected with a second motor (501), the driving end of the second motor (501) is fixedly connected with a rotating main shaft (504), the outer surface of the rotating main shaft (504) is fixedly sleeved with a worm (505), one side of the worm (505) is provided with a rotating rod (506), and two ends of the rotating rod (506) extend to the outside of the rotating cylinder (5) and are fixedly connected with a stirring rod (107);
hopper (303) under the inside fixedly connected with of charging box (3), feed opening (304) have been seted up to the bottom of hopper (303) down, the inner diapire of charging box (3) is provided with weighing sensor (305), the surface of weighing sensor (305) is provided with weighing plate (306), the surface of charging box (3) is provided with second controller (301), feed inlet (302) have been seted up on the top of charging box (3).
2. The rapid organic waste treatment device according to claim 1, wherein a support frame (201) is arranged at the bottom of the feeding device (2), the feeding device (2) is connected with the feeding hopper (104), and a sealing cover is arranged at one side of the feeding hopper (104).
3. The rapid organic waste treatment device according to claim 1, wherein the first controller (101) is electrically connected to the temperature sensor (106), the first motor (105) and the second motor (501), respectively, and a temperature display, a temperature control knob and a stirring control button are disposed on an outer surface of the first controller (101).
4. The quick organic waste treatment device according to claim 1, wherein a worm wheel (503) is fixedly sleeved at the middle position of the outer surface of the rotating rod (506), the worm wheel (503) is meshed with the worm (505), a rotating bearing (502) is sleeved on the outer surface of the rotating rod (506), and the rotating rod (506) is rotatably connected with the rotating cylinder (5) through the rotating bearing (502).
5. The quick organic waste treatment device according to claim 1, characterized in that a baffle (307) is slidably connected inside the feed opening (304), the inner side wall of the feed box (3) is fixedly connected with an electric telescopic rod (308), and one end of the baffle (307) passes through the side wall of the feed opening (304) and is fixedly connected with the telescopic end of the electric telescopic rod (308).
6. The apparatus for rapid processing of organic waste as claimed in claim 1, wherein the surface of the second controller (301) is provided with a weight setting button and a weighing display screen.
7. The device for rapidly processing the organic waste is characterized in that a material pumping end of the material pumping pump (4) is communicated with the side wall of the feeding box (3), a material pumping pipe (401) is connected to a material discharging end of the material pumping pump (4), and one end of the material pumping pipe (401) of the material pumping pump (4) is communicated with the side wall of the waste processing box (1).
8. A rapid organic waste treatment process, which is characterized in that the rapid organic waste treatment process adopts the rapid organic waste treatment device as claimed in any one of claims 1 to 7 to treat organic waste, and the rapid organic waste treatment process method comprises the following steps:
s1, feeding: throwing the waste into a waste treatment box (1) through a feeding device (2);
s2, preheating: preheating the waste to be reacted to 28 ℃ through a heating plate (103);
s3, adding materials: adding the decomposition protease in the feeding box (3) into the waste treatment box (1), and starting a first motor (105) and a second motor (501) through a first controller (101) to uniformly stir the waste and the decomposition protease for 10-15 min;
s4, heating the reactant in the S3 to 28-40 ℃, uniformly stirring, and decomposing and deodorizing by protease;
s5, heating the reactant in the S4 to 40-60 ℃, and uniformly stirring to preliminarily decompose the protease;
s6, heating the reactant in the S5 to 60-80 ℃, and uniformly stirring to finely decompose the protease;
s7, heating the reactant in the S6 to 80-82 ℃, and uniformly stirring to sterilize;
and S8, adding the reactant in the S7 into the beneficial bacterium group, and discharging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011483704.0A CN112605105A (en) | 2020-12-15 | 2020-12-15 | Organic waste rapid treatment device and process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011483704.0A CN112605105A (en) | 2020-12-15 | 2020-12-15 | Organic waste rapid treatment device and process |
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| Publication Number | Publication Date |
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| CN112605105A true CN112605105A (en) | 2021-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011483704.0A Pending CN112605105A (en) | 2020-12-15 | 2020-12-15 | Organic waste rapid treatment device and process |
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| Country | Link |
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| CN (1) | CN112605105A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006021090A (en) * | 2004-07-07 | 2006-01-26 | Hitachi Home & Life Solutions Inc | Apparatus for treatment of organic waste |
| CN103464452A (en) * | 2013-02-09 | 2013-12-25 | 山东华绿餐处科技股份有限公司 | Fermentation drying device used for treating kitchen wastes |
| CN208408016U (en) * | 2018-05-31 | 2019-01-22 | 北京摩尔森环保科技有限公司 | A kind of device using subcritical water fast decoupled organic waste in a vacuum |
| CN208664100U (en) * | 2018-08-03 | 2019-03-29 | 无锡市格林人造草坪有限公司 | The careless silk raw material dosing apparatus of chinampa |
| CN209752787U (en) * | 2019-04-03 | 2019-12-10 | 山东碧宇环保工程有限公司 | Organic waste fermentation is with homogeneous mixing agitating unit |
| CN110976476A (en) * | 2019-11-29 | 2020-04-10 | 天津城建大学 | Biological treatment device and method for urban garden green waste |
-
2020
- 2020-12-15 CN CN202011483704.0A patent/CN112605105A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006021090A (en) * | 2004-07-07 | 2006-01-26 | Hitachi Home & Life Solutions Inc | Apparatus for treatment of organic waste |
| CN103464452A (en) * | 2013-02-09 | 2013-12-25 | 山东华绿餐处科技股份有限公司 | Fermentation drying device used for treating kitchen wastes |
| CN208408016U (en) * | 2018-05-31 | 2019-01-22 | 北京摩尔森环保科技有限公司 | A kind of device using subcritical water fast decoupled organic waste in a vacuum |
| CN208664100U (en) * | 2018-08-03 | 2019-03-29 | 无锡市格林人造草坪有限公司 | The careless silk raw material dosing apparatus of chinampa |
| CN209752787U (en) * | 2019-04-03 | 2019-12-10 | 山东碧宇环保工程有限公司 | Organic waste fermentation is with homogeneous mixing agitating unit |
| CN110976476A (en) * | 2019-11-29 | 2020-04-10 | 天津城建大学 | Biological treatment device and method for urban garden green waste |
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Application publication date: 20210406 |