CN112645465A - Kitchen waste treatment equipment - Google Patents
Kitchen waste treatment equipment Download PDFInfo
- Publication number
- CN112645465A CN112645465A CN202011304334.XA CN202011304334A CN112645465A CN 112645465 A CN112645465 A CN 112645465A CN 202011304334 A CN202011304334 A CN 202011304334A CN 112645465 A CN112645465 A CN 112645465A
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- kitchen waste
- stirring
- cylinder
- centrifugal
- drum
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- 239000010806 kitchen waste Substances 0.000 title claims abstract description 58
- 238000003756 stirring Methods 0.000 claims abstract description 75
- 230000001804 emulsifying effect Effects 0.000 claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000007599 discharging Methods 0.000 claims abstract description 12
- 239000000839 emulsion Substances 0.000 claims abstract description 8
- 238000004945 emulsification Methods 0.000 claims description 25
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 9
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 9
- 241001330002 Bambuseae Species 0.000 claims description 9
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 9
- 239000011425 bamboo Substances 0.000 claims description 9
- 238000001914 filtration Methods 0.000 claims description 4
- 239000010813 municipal solid waste Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 2
- 239000011148 porous material Substances 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 239000010794 food waste Substances 0.000 abstract description 19
- 239000007788 liquid Substances 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 239000004519 grease Substances 0.000 abstract description 4
- 239000000725 suspension Substances 0.000 abstract description 4
- 238000000926 separation method Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 10
- 238000003825 pressing Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 208000005623 Carcinogenesis Diseases 0.000 description 1
- 206010016952 Food poisoning Diseases 0.000 description 1
- 208000019331 Foodborne disease Diseases 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000036952 cancer formation Effects 0.000 description 1
- 231100000504 carcinogenesis Toxicity 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000008162 cooking oil Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 210000004347 intestinal mucosa Anatomy 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/836—Mixing plants; Combinations of mixers combining mixing with other treatments
- B01F33/8361—Mixing plants; Combinations of mixers combining mixing with other treatments with disintegrating
- B01F33/83612—Mixing plants; Combinations of mixers combining mixing with other treatments with disintegrating by crushing or breaking
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/24—Separation of coarse particles, e.g. by using sieves or screens
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/26—Reducing the size of particles, liquid droplets or bubbles, e.g. by crushing, grinding, spraying, creation of microbubbles or nanobubbles
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- Mechanical Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to kitchen waste treatment equipment which comprises a shell, a rotary drum, an emulsifying drum and a centrifugal drum, wherein a filter hole is formed in the rotary drum, a kitchen waste feeding hole is formed in one side of the rotary drum, a residue discharging hole is formed in the other side of the rotary drum, a kitchen waste collecting tank is arranged below the rotary drum and communicated with the emulsifying drum through a water discharging pipe, the emulsifying drum is communicated with the centrifugal drum, an emulsifying and stirring mechanism is arranged in the emulsifying drum, a centrifugal stirring mechanism is arranged in the centrifugal drum, and an oil outlet and a water outlet are formed in the centrifugal drum. According to the invention, large food residues are separated by the roller, small food residues enter the emulsifying cylinder along with kitchen waste water, the food residues in the kitchen waste water are crushed, the food residues, grease and water are fully mixed to form an emulsion and a suspension, and the mixed liquid enters the centrifugal cylinder for centrifugal layering through a centrifugal effect, so that the treatment efficiency of the kitchen waste water is improved, and the separation effect is good.
Description
Technical Field
The invention relates to the technical field of garbage treatment, in particular to kitchen garbage treatment equipment.
Background
China is a large population country, and kitchen waste oil and fat produced in large and medium cities reaches 200-. Such a large amount of waste cooking oil or fat has many adverse effects on food safety, environmental sanitation, and the like unless strictly controlled. In particular, the peroxide value, acid value, moisture, bacteria and the like of the kitchen waste oil seriously exceed the standard, once the kitchen waste oil flows into the market and is eaten, leucocytes and intestinal mucosa are damaged, food poisoning, even carcinogenesis and the like are caused, and therefore the oil in the kitchen waste needs to be separated.
Chinese patent publication No. CN103817020A discloses a kitchen waste centrifugal separation device for separating solid and oily sewage from kitchen waste, which comprises a main body frame, a housing disposed in the main body frame, a drum and a drum motor for driving the drum to rotate, wherein the drum is covered with round holes, one side of the drum is provided with a kitchen waste inlet, the opposite side of the drum is provided with a residue outlet, and a feeding and conveying device is disposed on the left side of the kitchen waste inlet.
Disclosure of Invention
The invention provides kitchen waste treatment equipment for solving the technical problems.
The above object of the present invention is achieved by the following technical solutions: the utility model provides a kitchen waste treatment equipment, includes the casing, sets up cylinder in the casing, sets up emulsification section of thick bamboo and centrifuge bowl in the casing below, be provided with the filtration pore on the cylinder, one side of cylinder is provided with kitchen waste feed inlet, and the opposite side is provided with the residue discharge gate, the below of cylinder is provided with kitchen waste water collecting tank, kitchen waste water collecting tank passes through drain pipe and emulsification section of thick bamboo intercommunication, emulsification section of thick bamboo and centrifuge bowl intercommunication, set up by emulsification rabbling mechanism in the emulsification section of thick bamboo, be provided with centrifugal rabbling mechanism in the centrifuge bowl, be provided with oil-out and delivery port on the centrifuge bowl.
Preferably, the roller is arranged obliquely, the kitchen waste feeding hole is arranged on the higher side of the roller, and the residue discharging hole is arranged on the lower side of the roller.
Preferably, the rotation axis of the drum is at an angle of 5-10 ° to the horizontal.
Preferably, the emulsification stirring mechanism comprises a stirring shaft, the stirring shaft is vertically arranged at the center of the emulsification barrel and rotates relative to the emulsification barrel, and a stirring paddle is arranged at the lower end of the stirring shaft.
Preferably, the outside of stirring rake is provided with the collar, the collar is fixed on the (mixing) shaft, be provided with the puddler on the collar, the puddler circumference distributes on the collar and encloses and establish around the stirring rake, forms the space that supplies the emulsion to pass through between two adjacent puddlers.
Preferably, the inner wall of the emulsifying cylinder is provided with first blades which are distributed in a vertically staggered mode at intervals.
Preferably, the end of the stirring rod is provided with a second blade, and the second blade is arranged on the inner side of the stirring rod and is positioned below the stirring paddle.
Preferably, the width of each stirring rod is gradually increased from top to bottom, and the gap between every two adjacent stirring rods is gradually decreased from top to bottom.
Preferably, the emulsifying cylinder and the centrifugal cylinder are arranged integrally, the emulsifying cylinder is arranged in the center of the centrifugal cylinder, and a discharge port communicated with the centrifugal cylinder is arranged at the bottom of the emulsifying cylinder.
Preferably, the centrifugal stirring mechanism comprises a stirring blade, the stirring blade is arranged in the centrifugal cylinder and rotatably arranged on the outer side of the emulsifying cylinder, a rotating shaft is arranged at the bottom of the centrifugal cylinder, and the lower end of the stirring blade is fixedly connected to the rotating shaft.
The invention has the beneficial effects that: according to the invention, large food residues are separated by the roller, small food residues enter the emulsifying cylinder along with kitchen waste water, the food residues in the kitchen waste water are crushed, the food residues, grease and water are fully mixed to form an emulsion and a suspension, and the mixed liquid enters the centrifugal cylinder for centrifugal layering through a centrifugal effect, so that the treatment efficiency of the kitchen waste water is improved, and the separation effect is good.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an emulsification barrel and a centrifugal barrel in an embodiment of the invention;
FIG. 3 is a schematic structural diagram of an emulsification stirring mechanism in an embodiment of the present invention;
in the figure: 1-shell, 101-kitchen waste feeding hole, 102-residue discharging hole, 2-roller, 3-emulsifying cylinder, 301-liquid inlet, 302-discharging hole, 4-centrifugal cylinder, 401-oil outlet, 402-water outlet, 5-emulsifying stirring mechanism, 501-stirring shaft, 502-mounting ring, 503-stirring paddle, 504-stirring rod, 505-second blade, 6-first motor, 7-centrifugal stirring mechanism, 8-second motor and 9-first blade.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Example (b): as shown in figure 1, the kitchen waste treatment equipment comprises a shell 1, a roller 2, an emulsifying cylinder 3 and a centrifugal cylinder 4, wherein the roller 2 is arranged in the shell 1, and rollers at two ends of the roller 2 are rotatably arranged on the shell 1 and driven to rotate by a stepping motor. An emulsifying cylinder 3 and a centrifugal cylinder 4 are arranged below the shell 1, the centrifugal cylinder 4 is fixed at the bottom of the shell 1, the emulsifying cylinder 3 and the centrifugal cylinder 4 are arranged integrally, the emulsifying cylinder 3 is arranged at the center of the centrifugal cylinder 4, and the upper end of the emulsifying cylinder 3 is fixed at the top of the centrifugal cylinder 4.
The drum 2 is provided with a filtering hole with the aperture of 2-5cm for filtering out food residues with larger volume, one side of the drum 2 is provided with a kitchen waste feeding hole 101, and the other side is provided with a residue discharging hole 102. A kitchen waste water collecting tank is arranged below the roller 2 and is communicated with the emulsifying cylinder 3 through a water discharging pipe.
The roller 2 is arranged obliquely, the kitchen waste feeding hole 101 is arranged at the higher side of the roller 2, and the residue discharging hole 102 is arranged at the lower side of the roller 2. The included angle between the rotation axis of the roller 2 and the horizontal plane is alpha, and the size of the alpha is 5-10 degrees.
Further, a pressing roller may be installed in the drum 2, the pressing roller being installed at one side of the rotational axis of the drum 2 such that the pressing roller is in contact with the inner wall of the drum 2, wherein the pressing roller is a driven roller, and both ends of the pressing roller are installed on the housing 1. In the rolling screening process, the compression roller and the inner wall of the roller 2 are extruded to crush part of kitchen waste with larger volume, screen out hard kitchen waste which is difficult to break, and avoid the filter holes from being blocked.
As shown in FIG. 2, the centrifugal cylinder 4 is provided with an oil outlet 401 and a water outlet 402, and the oil outlet 401 and the water outlet 402 are respectively arranged at the upper end and the lower end of the centrifugal cylinder 4.
The upper end of the emulsifying cylinder 3 is provided with a liquid inlet 301, and the kitchen waste water collecting tank is connected with the liquid inlet 301 through a water discharging pipe. The bottom of the emulsifying cylinder 3 is provided with a discharge port 302 for discharging the emulsion into the centrifugal cylinder 4, the discharge port 302 is controlled by an electromagnetic valve, and a metal filter screen is arranged at the discharge port 302 of the emulsifying cylinder 3.
An emulsification stirring mechanism 5 is arranged in the emulsification barrel 3, the emulsification stirring mechanism 5 comprises a stirring shaft 501, the stirring shaft 501 is vertically arranged at the center of the emulsification barrel 3 and rotates relative to the emulsification barrel 3, and the stirring shaft is driven to rotate by a first motor 7 at the upper end.
As shown in fig. 3, the lower end of the stirring shaft 501 is provided with a stirring paddle 503, the outer side of the stirring paddle 503 is provided with a mounting ring 502, and the mounting ring 502 is fixed on the stirring shaft 501. The mounting ring 502 is provided with the stirring rods 504, the stirring rods 504 are circumferentially distributed on the mounting ring 502 and surround the stirring paddle 503, and a gap for emulsion to pass through is formed between every two adjacent stirring rods 504.
The stirring rod 504 is vertically arranged and is arranged in parallel with the stirring shaft 501. The width of the stirring rods 504 is gradually increased from top to bottom, and the gap between two adjacent stirring rods 504 is gradually decreased from top to bottom. During stirring, kitchen waste water enters the space above the stirring paddle 503 from the gap between two adjacent stirring rods 504, and when the gap is small, food residues cannot enter, so that the food residues cannot flow circularly with the kitchen waste water, and crushing of the food residues is not facilitated.
The end of the stirring rod 504 is provided with a second blade 505, and the second blade 505 is arranged inside the stirring rod 504 and below the stirring paddle 503. After entering the space above the paddle 503, the food waste flows downward by the paddle 503 and contacts the second blade 505 below, and is crushed by the second blade 505.
As shown in FIG. 2, the inner wall of the emulsification barrel 3 is provided with first blades 9, and the first blades 9 are arranged in a staggered manner at intervals up and down.
A centrifugal stirring mechanism 7 is arranged in the centrifugal cylinder 4, the centrifugal stirring mechanism 7 comprises a stirring blade, and the stirring blade is arranged in the centrifugal cylinder 4 and is rotatably arranged on the outer side of the emulsifying cylinder 3. The bottom of the centrifugal cylinder 4 is provided with a rotating shaft, the lower end of the stirring blade is fixedly connected to the rotating shaft, and the rotating shaft is driven to rotate by a second motor 8 below the rotating shaft.
The kitchen waste enters the roller 2 from the kitchen waste feeding hole 101, and along with the rotation of the roller 2, the waste water, grease and food residue with small volume in the roller are filtered, the mixture is temporarily stored in the kitchen waste water collecting tank at the bottom after being filtered, and the kitchen waste with large volume is discharged from the residue discharging hole 102.
The kitchen waste water mixed with food residues enters the emulsifying cylinder 3 from the liquid inlet 301, the kitchen waste water performs centrifugal motion in the emulsifying cylinder 3 under the stirring of the emulsifying and stirring mechanism 5, and the food residues in the waste water are contacted with the first blade 9 on the inner wall of the emulsifying cylinder 3 and are crushed. Meanwhile, under the action of the stirring paddle 503 at the lower end of the stirring shaft 501, the kitchen waste water enters the space surrounded by the stirring rods 504 from the gap between the stirring rods 504 and flows downwards under the action of the stirring paddle 503, so that the food residues mixed in the kitchen waste water are crushed by the second blade 505 at the lower end of the stirring rods 504. The food residue mixed in the kitchen waste water is fully crushed and stirred under the double crushing action to form suspension, and the oil and fat in the kitchen waste water are mixed with the suspension under the action of the emulsifying and stirring mechanism 5 to form emulsion, so that the food residue and the oil and fat are prevented from being accumulated in the emulsifying cylinder 3. The emulsion enters a centrifugal cylinder 4, is centrifuged by a centrifugal stirring mechanism 7, is layered by grease, water and impurities, and is discharged from an oil outlet 401 and a water outlet 402 respectively.
Claims (10)
1. The utility model provides a kitchen garbage treatment equipment which characterized in that: including casing (1), set up cylinder (2), emulsification section of thick bamboo (3) and centrifuge bowl (4) of setting in casing (1) below in casing (1), be provided with the filtration pore on cylinder (2), one side of cylinder (2) is provided with kitchen waste feed inlet (101), and the opposite side is provided with residue discharge gate (102), the below of cylinder (2) is provided with kitchen waste water collecting vat, kitchen waste water collecting vat passes through drain pipe and emulsification section of thick bamboo (3) intercommunication, emulsification section of thick bamboo (3) and centrifuge bowl (4) intercommunication, set up in emulsification section of thick bamboo (3) by emulsification rabbling mechanism (5), be provided with centrifugal rabbling mechanism (7) in centrifuge bowl (4), be provided with oil-out (401) and delivery port (402) on centrifuge bowl (4).
2. The kitchen waste treatment apparatus according to claim 1, wherein: the rotary drum (2) is obliquely arranged, the kitchen waste feeding hole (101) is formed in the higher side of the rotary drum (2), and the residue discharging hole (102) is formed in the lower side of the rotary drum (2).
3. The kitchen waste treatment apparatus according to claim 2, wherein: the included angle between the rotation axis of the roller (2) and the horizontal plane is 5-10 degrees.
4. The kitchen waste treatment apparatus according to claim 1, wherein: the emulsification stirring mechanism (5) comprises a stirring shaft (501), wherein the stirring shaft (501) is vertically arranged at the center of the emulsification barrel (3) and rotates relative to the emulsification barrel (3), and a stirring paddle (503) is arranged at the lower end of the stirring shaft (501).
5. The kitchen waste treatment apparatus according to claim 4, wherein: the outside of stirring rake (503) is provided with collar (502), collar (502) are fixed on (mixing) shaft (501), be provided with puddler (504) on collar (502), puddler (504) circumference distributes and encloses on collar (502) and establish around stirring rake (503), forms the space that supplies the emulsion to pass through between two adjacent puddlers (504).
6. The kitchen waste treatment apparatus according to claim 5, wherein: the inner wall of the emulsifying cylinder (3) is provided with first blades (9), and the first blades (9) are distributed in a vertically alternate and staggered manner.
7. The kitchen waste treatment apparatus according to claim 6, wherein: the end part of the stirring rod (504) is provided with a second blade (505), and the second blade (505) is arranged on the inner side of the stirring rod (504) and is positioned below the stirring paddle (503).
8. The kitchen waste treatment apparatus according to claim 5, wherein: the width of puddler (504) is crescent from top to bottom, and the space between two adjacent puddlers (504) is crescent from top to bottom.
9. The kitchen waste treatment apparatus according to claim 1, wherein: the emulsifying cylinder (3) and the centrifugal cylinder (4) are arranged integrally, the emulsifying cylinder (3) is arranged at the center of the centrifugal cylinder (4), and a discharge port communicated with the centrifugal cylinder (4) is arranged at the bottom of the emulsifying cylinder (3).
10. The kitchen waste disposal apparatus as set forth in claim 9, wherein: centrifugal rabbling mechanism (7) are including stirring the leaf, the stirring leaf sets up in centrifuge bowl (4) and rotationally installs in the outside of emulsification section of thick bamboo (3), the bottom of centrifuge bowl (4) is provided with the pivot, the lower extreme rigid coupling of stirring leaf is in the pivot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011304334.XA CN112645465A (en) | 2020-11-19 | 2020-11-19 | Kitchen waste treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011304334.XA CN112645465A (en) | 2020-11-19 | 2020-11-19 | Kitchen waste treatment equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112645465A true CN112645465A (en) | 2021-04-13 |
Family
ID=75349478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011304334.XA Pending CN112645465A (en) | 2020-11-19 | 2020-11-19 | Kitchen waste treatment equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112645465A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113118193A (en) * | 2021-05-14 | 2021-07-16 | 重庆乐乐环保科技有限公司 | Drum-type biochemical decomposition mixer |
-
2020
- 2020-11-19 CN CN202011304334.XA patent/CN112645465A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113118193A (en) * | 2021-05-14 | 2021-07-16 | 重庆乐乐环保科技有限公司 | Drum-type biochemical decomposition mixer |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20210413 |