CN108585402A - A kind of non-degradable residue sorting unit of septic tank - Google Patents
A kind of non-degradable residue sorting unit of septic tank Download PDFInfo
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- CN108585402A CN108585402A CN201810379771.4A CN201810379771A CN108585402A CN 108585402 A CN108585402 A CN 108585402A CN 201810379771 A CN201810379771 A CN 201810379771A CN 108585402 A CN108585402 A CN 108585402A
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- septic tank
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- molecular material
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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
- C02F11/02—Biological treatment
- C02F11/04—Anaerobic treatment; Production of methane by such processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
- B01D45/08—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by impingement against baffle separators
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
- B07B13/003—Separation of articles by differences in their geometrical form or by difference in their physical properties, e.g. elasticity, compressibility, hardness
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- Molecular Biology (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
Abstract
A kind of non-degradable residue sorting unit of septic tank, belongs to technical field of waste treatment.The present invention is in order to solve the problems, such as that existing non-degradable residue influences septic tank microbial degradation efficiency in septic tank.The present invention includes the septic tank high molecular material screening plant being mounted on sorting unit supporting rack, the non-degradable solid particulate filter bodies of septic tank and gas treatment equipment, the top of septic tank high molecular material screening plant has water inlet, the bottom of septic tank high molecular material screening plant has water outlet, the water outlet of septic tank high molecular material screening plant is connected to by the first connecting tube with the top of the non-degradable solid particulate filter bodies of septic tank, the bottom end of the non-degradable solid particulate filter bodies of septic tank is connected to by the second connecting tube with the gas treatment equipment foundation on sorting unit supporting rack right side.The present invention has the characteristics that efficiency of separation height, stable work in work, safe and reliable, easy to maintain.
Description
Technical field
The present invention relates to a kind of non-degradable residue sorting unit and method for separating, belong to technical field of waste treatment.
Background technology
Septic tank is to handle excrement, rubbish and the equipment for being filtered precipitation, and principle is that solidfied material is decomposed in bottom of pond, on
The aquation object of layer, flows away into pipeline, it is therefore prevented that line clogging has sufficient time water to solidification object (rubbish such as excrement)
Solution；Septic tank refers to precipitating sanitary sewage lattice and carrying out sludge the small-sized processing structures of anaerobic digestion, septic tank
Play the role of in mankind's urban life it is vital, such as：
1, the environmental sanitation for ensureing living community, avoids sanitary sewage and pollutant in the diffusion of living environment；
2, in the working environment of septic tank anaerobism corruption, mosquitos and flies worm's ovum is killed；
3, provisional storage sludge, organic sludge carry out anaerobism corruption, and the organic sludge of curing can be used as agricultural fertilizer；
4, the pretreatment (coagulation) of sanitary sewage, precipitated impurities, and larger molecular organics is made to hydrolyze, become acid, alcohol
Equal small organic molecules, improve subsequent sewage disposal.
But in existing digestion tank structure, sanitary sewage directly connects through being located at the excrement injection in septic tank sidewall upper portion
Mouth is flowed into the bottom of septic tank, since the solid dirt in sanitary sewage is without break process, is unfavorable for realizing efficient degradation,
In addition some non-degradable objects, such as plastic tape etc. can be mixed into, cause the Biodegradation Times of dirt longer in this way, and then are reduced
The working efficiency of septic tank, cannot achieve efficient degradation；The device and method not determined temporarily at present handle excrement realizing
Just, the initial stage of garbage disposal carries out the sorting of these non-degradable objects and solid dirt, can only be removed by periodically manually drawing, and realizes
Non-degradable object, solid dirt are further processed, and the hand labor intensity of this mode is big, low production efficiency, working environment
Badly, therefore it is badly in need of a kind of non-degradable residue sorting unit of septic tank and method for separating, septic tank is discharged into excrement, rubbish
It at initial stage, realizes the sorting of these non-degradable objects and solid dirt, and then avoids the presence of non-degradable residue in septic tank, influence
Septic tank anaerobism degenerates work.
Invention content
The problem of the purpose of the present invention is to solve above-mentioned technologies, and then a kind of non-degradable residue of septic tank point is provided
Screening device and method for separating.
Technical scheme of the present invention：
A kind of non-degradable residue sorting unit of septic tank includes septic tank high molecular material screening plant, the non-drop of septic tank
Solid particulate filter bodies, gas treatment equipment and sorting unit supporting rack are solved, sorting unit supporting rack has multiple support legs,
Septic tank high molecular material screening plant is fixedly mounted on by pedestal on the left side of sorting unit supporting rack, septic tank high score
The top of sub- material screening plant has water inlet, and the bottom of septic tank high molecular material screening plant has water outlet, described
The non-degradable solid particulate filter bodies of septic tank be fixedly mounted on the centre position of sorting unit supporting rack, septic tank macromolecule
The water outlet of material screening plant is connected to by the first connecting tube with the top of the non-degradable solid particulate filter bodies of septic tank, is changed
The bottom end of the non-degradable solid particulate filter bodies of manure pit is by the second connecting tube and on sorting unit supporting rack right side
Gas treatment equipment establish connection.
Further, the septic tank high molecular material screening plant includes drive case, screening babinet and separator box
The upper surface of body, the drive case is inclined surface, and the first driving motor and the second driving motor are provided in drive case,
The screening babinet is closed box, and the cross section for screening babinet is rectangular, and screening babinet is tiltedly mounted on drive case
Upper surface, the upper end for screening babinet have the water inlet of septic tank high molecular material screening plant, and the lower end for screening babinet has
The water outlet of septic tank high molecular material screening plant, there are two high molecular material screening wheel, macromolecules for the interior installation of screen box body
Screening hook is evenly arranged on the side wall of material screening wheel, the output end of two high molecular material screening wheels is equipped with driven skin
The driven pulley of belt wheel, two high molecular material screening wheels is exported by belt and the first driving motor and the second driving motor
The drive pulley cooperation installation at end, the separation babinet are mounted on the upper surface of screening babinet, detach the lower end tool of babinet
There is discharge port, high molecular material separating wheel is installed in separator box body, is equipped in the shaft of high molecular material separating wheel driven
Belt pulley is detached, the upper end for detaching babinet is equipped with third driving motor, is equipped on the output shaft of third driving motor actively
Belt pulley is detached, belt pulley is actively detached and belt pulley cooperation installation is detached with driven by belt.
Further, the screening hook is elastic hook or the high molecular material hook with plasticity.
Further, the installation of high molecular material screening wheel is machined on the side wall of the screening babinet and separation babinet
Mouthful, high molecular material screening wheel is equipped with by bolt at the high molecular material screening wheel installing port, cover board is installed, it is described
High molecular material screening wheel left and right ends respectively by bearing be mounted on screening babinet side wall and high molecular material screen
On wheel installation cover board；The left and right ends of the high molecular material screening wheel are mounted on the side wall of separation babinet by bearing respectively
On high molecular material screening wheel installation cover board, the high molecular material screening wheel and high molecular material point that are mounted in separator box body
Coordinate the separation for realizing high molecular material from wheel.
Further, the screening babinet and separation babinet are interconnected, the screening babinet and separation babinet
The first installing port and the second installing port are machined on side wall respectively, first installing port and the second installing port are connected to form length
Rectangular high molecular material screening wheel installing port is equipped with single axis in the opening left and right sidewall of high molecular material screening wheel installing port
Sliding rail, screening wheel installation seat plate is provided in the high molecular material screening wheel installing port, and screening wheel installation seat plate is " boss
The left and right sides wall of shape " mounting plate, screening wheel installation seat plate is separately installed with single axis slide, the screening wheel installation seat plate
It is slidably mounted in high molecular material screening wheel installing port by single axis slide and single axis sliding rail, the high molecular material
Screening wheel left and right ends are mounted on by bearing on screening wheel installation seat plate respectively, screening wheel installation seat plate in single axis slide and
It can be slided in rectangle high molecular material screening wheel installing port under the action of single axis sliding rail, and then drive and be mounted on screening
It takes turns the high molecular material screening wheel on installation seat plate and realizes that the installation site in screening babinet and separator box body is adjusted；Described
The upper and lower ends of screening wheel installation seat plate are respectively by above and below the opening of Telescopic protective cover and high molecular material screening wheel installing port
Side wall establishes connection；The connectivity part of the screening babinet and separation babinet is additionally provided with separation baffles, the separation baffles
Screening babinet is mounted on using inserting mode and detaches the connectivity part of babinet.
Further, the high molecular material separating wheel includes separation barrel and is arranged on separation barrel lateral wall
The cross section of chorista, the chorista is trapezoidal, and multiple arcs separating tank, arc separation are machined on chorista
Slot includes trapezoid-shaped openings end, circular arc open end and square aperture end, the trapezoid-shaped openings end, circular arc open end and square aperture
End is in turn connected to form slot-type openings.
Further, the non-degradable solid particulate filter bodies of septic tank include cylindrical box and filter screen, cylindrical box
The top open part of body is hingedly equipped with cover board, has arrival end, the bottom of cylindrical box on the top side wall of cylindrical box
There is outlet end, the inner hub location of cylindrical box to be equipped with filter screen mounting base, filter screen peace on the wall of end side
In filter screen mounting base.
Further, the gas treatment equipment includes holding vessel, spray equipment, folded plate demister and spray driving dress
It sets, there is gas treatment water inlet, the bottom end of holding vessel to have gas treatment water outlet on the bottom end side wall of the holding vessel,
There is exhaust outlet, the folded plate demister to be mounted on the centre position of holding vessel, the spray equipment on the top of holding vessel
In holding vessel, spray equipment is arranged in the top of folded plate demister.
Further, the spray equipment includes support base, spray pipe mounting seat, supporting rack, spray tube, support base peace
Capping, the first bevel gear and water pipe universal joint, the support base are truncated cone-shaped support base, and support base is welded by its outer wall
Some supporting racks are arranged in holding vessel inner hub location, and the spray pipe mounting seat may be rotatably mounted at support by bearing
Seat is internal, and support base installation lid is mounted on support base upper end, and the upper end of the spray pipe mounting seat is equipped with the first bevel gear,
The lower end periphery of spray pipe mounting seat has been evenly arranged multiple spray tubes, and it is logical that water pipe is machined with inside the spray pipe mounting seat
The end in road, water pipe channel is connected to spray tube, and the input end of water pipe channel is equipped with water pipe universal joint, water pipe universal joint
It is connected to external alkaline-water box by water pipe；Nozzle is installed on spray tube；
The spray driving device includes motor, electric machine support, rotation axis and the second bevel gear, and the motor passes through
Electric machine support is mounted on the outer wall of holding vessel, and the output end of motor is connected with rotation axis, and rotation axis passes through the side wall of holding vessel
It is arranged in inside holding vessel, rotation axis end is equipped with the second bevel gear, and the second bevel gear engages installation with the first bevel gear；
The folded plate demister includes cylindrical folded plate frame and the folded plate on cylindrical folded plate frame.
A kind of non-degradable residue method for separating of septic tank, includes the following steps：
Step 1: the installation non-degradable residue sorting unit of septic tank
By septic tank high molecular material screening plant, the non-degradable solid particulate filter bodies of septic tank and gas treatment equipment
It is sequentially arranged on sorting unit supporting rack, the water inlet of septic tank high molecular material screening plant is in sanitary sewer after installation
Road connects, and the water outlet of gas treatment equipment is connected to septic tank；
Step 2: carrying out polymeric packaging material screening
Run septic tank high molecular material screening plant so that the objects such as excrement, rubbish in sanitary sewer stream exist
High molecular material screening wheel in septic tank high molecular material screening plant and on high molecular material screening wheel side wall
It screens under hook effect so that polymeric packaging material is hung upside down on screening hook；
Step 3: carrying out polymeric packaging material separation
The high molecular material screening wheel for overworking polymeric packaging material in step 2 is mounted on separation box house, is being divided
Under high molecular material separating wheel effect from babinet so that the polymeric packaging material hung upside down on screening hook is linked up with screening
Separation；
Step 4: carrying out polymeric solid material screening
The objects such as excrement, the rubbish after screening polymeric packaging material screening are carried out in step 3 passes through septic tank macromolecule
The water outlet of material screening plant is flowed into inside the non-degradable solid particulate filter bodies of septic tank, in the non-degradable solid of septic tank
Under the action of filter screen in particulate filter bodies, the screening of polymeric solid material is realized；
Step 5: gas treatment in progress sanitary sewage
Sanitary sewage, excrement and rubbish after polymeric solid material screening are carried out in step 4 passes through the second connecting tube
It is flowed into inside gas treatment equipment, inside gas treatment equipment, work of the odorous gas in spray equipment and folded plate demister
With lower realization sanitary sewage gas treatment.
A kind of application method of the non-degradable residue sorting unit of septic tank, includes the following steps：
Step a, septic tank high molecular material screening plant is run, it is non-to complete sanitary sewage, excrement and rubbish inner packing class
The screening and separation of degradation residue；
High molecular material screening wheel with screening hook is mounted on by bearing on the side wall of screening babinet, and will be high
The driven pulley of molecular material screening wheel is coordinated by belt and the drive pulley mounted on the first driving motor output end
Installation starts the first driving motor, at this time the first driving when sanitary sewage, excrement and rubbish enter screening box house
Motor drives high molecular material screening wheel to rotate, in rotation process, life water, excrement and the non-degradable residue of rubbish inner packing class
It hangs upside down on the screening hook on high molecular material screening wheel；
When hanging with a certain amount of packaging group non-degradable residue on screening hook, high molecular material screening wheel is torn open
It unloads, and the high molecular material screening wheel installing port by being arranged on the side wall of separation babinet is mounted on separation box house, it will
The driven pulley of high molecular material screening wheel is matched by belt and the drive pulley mounted on the second driving motor output end
Installation is closed, at the same time, driven separation belt pulley and peace will be passed through mounted on the high molecular material separating wheel of separation box house
Belt pulley cooperation installation is actively detached in the third driving motor output shaft of separation babinet upper end, is separately operable the second drive
Dynamic motor and third driving motor so that high molecular material separating wheel, to rotation, realizes the dress non-drop of class with high molecular material screening wheel
Solve the separation of residue；
Step b, the non-degradable solid particulate filter bodies of septic tank are run, solid is non-in completion life water, excrement and rubbish
The screening of degradation residue；
Sanitary sewage, excrement and the rubbish that screening and the separation of the non-degradable residue of packaging group are completed in step a pass through
First connecting tube enters in the cylindrical box body of the non-degradable solid particulate filter bodies of septic tank, in the inside of cylindrical box
With filter screen mounting base, filter screen is installed in filter screen mounting base, filter screen is flute profile filter screen, size and cylinder
Cabinet wall is adapted, under the action of filter screen, the non-degradable residue screening of solid in realization life water, excrement and rubbish；
Step c, gas treatment equipment is run, the smell processing of life water, excrement and rubbish is carried out；
Sanitary sewage, excrement and the rubbish of the screening of the non-degradable residue of solid are completed in stepb by the second connection
Pipe enters in the holding vessel of gas treatment equipment, has spray equipment and folded plate demister inside holding vessel, spray equipment
The rotation of driving motor drives the second bevel-gear rotating, and the second bevel gear is engaged with the first bevel gear to be installed and then realize spray
Rotation of the pipe mounting seat in support base is equipped with spray tube in the bottom end of spray pipe mounting seat, and spray tube sprays moisture or alkali
Property solution is mixed with the gas containing sulfide in sanitary sewage, excrement and rubbish in folded plate demister lower end, mixed to contain
When having the gas of mist to flow through demister with certain speed, since the inertial impaction of gas acts on, mist is collided with corrugated folded plate
When the drop for hitting and being gathered arrives greatly the resultant force of climbing power and surface tension of liquid that the gravity that its own is generated is more than gas, drop
It is just separated from waveform plate surface, and then realizes the smell processing for carrying out life water, excrement and rubbish.
The invention has the advantages that：
1, the present invention realizes be discharged into septic tank objects before, the Integrated Selection of non-degradable residue works, and can pass through height
Molecular material screening plant by life excrement and rubbish polybag and floating clothes sort out, then pass through the non-drop of septic tank
It solves the non-degradable object of the remaining solid of solid particulate filter bodies (such as solid plastic particles) to detach, work efficiency is high, screening
It is high-quality, it is adapted at the scale, serialization, industrialization of the non-degradable residue retained in urban night soil and rubbish
Reason；
2, septic tank high molecular material screening plant of the invention can realize sorting and the mask work of polybag respectively,
Polybag can be hung upside down respectively on screening hook by using the septic tank high molecular material screening plant of the present invention, and
The polybag being automatically separated on screening hook, therefore the change excrement of the present invention can be realized under the action of high molecular material separating wheel again
Pond high molecular material screening plant screening rate is fast, and efficient, screening effect is notable；
3, the folded plate demister and spray equipment of gas treatment of the invention are rotation mode, and this demister pattern reduces
Gas flow resistance, lift gas flowing velocity accelerate gas demisting process, promote demisting efficiency；
4, the present invention has the characteristics that efficiency of separation height, stable work in work, safe and reliable, easy to maintain.
Description of the drawings
Fig. 1 is a kind of scheme of installation of the non-degradable residue sorting unit of septic tank；
Fig. 2 is the structure scheme of installation of septic tank high molecular material screening plant；
Fig. 3 is sectional view along A-A in Fig. 2；
Fig. 4 is the mounting structure schematic diagram of specific implementation mode four；
Fig. 5 is to screen babinet in specific implementation mode four and detach the mounting structure schematic diagram of babinet；
Fig. 6 is the mounting structure schematic diagram of high molecular material screening wheel and screening babinet；
Fig. 7 is the front view of Fig. 6；
Fig. 8 is the left view of high molecular material separating wheel；
Fig. 9 is the vertical view of high molecular material separating wheel；
Figure 10 is the structure scheme of installation of the non-degradable solid particulate filter bodies of septic tank；
Figure 11 is the structure scheme of installation of gas treatment equipment；
Figure 12 is the structure scheme of installation of spray equipment；
Figure 13 is the structure scheme of installation of folded plate demister；
1- septic tanks high molecular material screening plant in figure, the non-degradable solid particulate filter bodies of 2- septic tanks, 3- gases
Processing unit, 4- sorting unit supporting racks, 5- pedestals, 6- water inlets, 7- water outlets, the first connecting tubes of 8-, the second connecting tubes of 9-,
10- drive cases, 11- screen babinet, and 12- detaches babinet, 13- high molecular material screening wheels, 14- screening hooks, the drives of 15- first
Dynamic motor, the second driving motors of 16-, 17- driven pulleies, 18- drive pulleys, 19- high molecular material separating wheels, 20- from
Dynamic separation belt pulley, 21- third driving motors, 22- actively detach belt pulley, 23- high molecular material screening wheel installing ports, 24-
High molecular material screening wheel installs cover board, the first installing ports of 25-, the second installing ports of 26-, the installation of 27- high molecular material screening wheels
Mouthful, 28- single axis sliding rails, 29- screening wheel installation seat plates, 30- single axis slides, 31- Telescopic protective covers, 32- separation baffles,
33- separation barrels, 34- choristas, 35- arc separating tanks, 36- trapezoid-shaped openings end, 37- circular arcs open end, 38- square apertures
End, 39- cylindrical box, 40- filter screens, 41- filter screen mounting bases, 42- holding vessels, 43- spray equipments, 44- folded plate demistings
Device, 45- spray driving devices, 46- gas treatment water inlets, 47- gas treatment water outlets, 48- exhaust outlets, 49- support bases,
50- sprays pipe mounting seat, and 51- supporting racks, 52- spray tubes, 53- support bases, which are installed, to be covered, the first bevel gears of 54-, and 55- water pipes are universal
Connector, 56- water pipe channels, 57- water pipes, 58- motors, 59- electric machine supports, 60- rotation axis, the second bevel gears of 61-, 62- cylinders
Shape folded plate frame, 63- folded plates, the outlet of 64- polybags, 65- cover boards.
Specific implementation mode
Specific implementation mode one：Illustrate present embodiment, a kind of non-drop of septic tank of present embodiment in conjunction with Fig. 1-Figure 13
Solution residue sorting unit, including the non-degradable solid particulate filter bodies 2 of septic tank high molecular material screening plant 1, septic tank,
Gas treatment equipment 3 and sorting unit supporting rack 4, sorting unit supporting rack 4 have multiple support legs, septic tank high molecular material
Screening plant 1 is fixedly mounted on by pedestal 5 on the left side of sorting unit supporting rack 4, septic tank high molecular material screening dress
There is water inlet 6, the bottom of septic tank high molecular material screening plant 1 to have water outlet 7, the septic tank at the top for setting 1
Non-degradable solid particulate filter bodies 2 are fixedly mounted on the centre position of sorting unit supporting rack 4, septic tank high molecular material sieve
The water outlet 7 of screening device 1 is connected to by the top of the non-degradable solid particulate filter bodies of the first connecting tube 8 and septic tank 2, changes excrement
The bottom end of the non-degradable solid particulate filter bodies in pond 2 by the second connecting tube 9 on 4 right side of sorting unit supporting rack
Gas treatment equipment 3 establish connection.So set, a kind of non-degradable residue sorting unit of septic tank is mounted in sanitary sewage in advance
The connectivity part of drainage pipeline and septic tank is screened by the septic tank high molecular material of the non-degradable residue sorting unit of septic tank
Device 1 and the non-degradable solid particulate filter bodies of septic tank 2 can be realized before sanitary sewage is discharged into septic tank plastics package and
The sorting of solid particle, avoid mixed non-degradable object in septic tank cause the Biodegradation Times of dirt in septic tank compared with
It is long, by sorting non-degradable object, the working efficiency of septic tank is improved, realizes efficient degradation.
Specific implementation mode two：Illustrate present embodiment, a kind of non-drop of septic tank of present embodiment in conjunction with Fig. 1-Figure 13
Residue sorting unit is solved, the septic tank high molecular material screening plant 1 includes drive case 10, screening babinet 11 and divides
From babinet 12, the upper surface of the drive case 10 is inclined surface, and 15 He of the first driving motor is provided in drive case 10
Second driving motor 16, the screening babinet 11 are closed box, and the cross section of screening babinet 11 is rectangular, screens babinet 11
It is tiltedly mounted on the upper surface of drive case 10, the upper end of screening babinet 11 has entering for septic tank high molecular material screening plant
The lower end at the mouth of a river 6, screening babinet 11 has the water outlet 7 of septic tank high molecular material screening plant 1, is installed in screening babinet 11
There are two high molecular material screening wheel 13, it is evenly arranged on the side wall of high molecular material screening wheel 13 and screens hook 14, two
The output end of high molecular material screening wheel 13 is equipped with driven pulley 17, the follower belt of two high molecular material screening wheels 13
Wheel 17 coordinates installation by the drive pulley 18 of 16 output end of belt and the first driving motor 15 and the second driving motor, described
Separation babinet 12 be mounted on screening babinet 11 upper surface, separation babinet 12 lower end have discharge port, detach babinet 12 in
High molecular material separating wheel 19 is installed, driven separation belt pulley 20 is installed in the shaft of high molecular material separating wheel 19, point
Upper end from babinet 12 is equipped with third driving motor 21, is equipped on the output shaft of third driving motor 21 and actively detaches belt
Wheel 22 actively detaches belt pulley 22 and detaches the cooperation installation of belt pulley 20 with driven by belt.So set, operation septic tank is high
Molecular material screening plant 1 so that the objects such as excrement, rubbish in sanitary sewer stream are screened in septic tank high molecular material
High molecular material screening wheel 13 in device 1 and 14 effect of screening hook on 13 side wall of high molecular material screening wheel
Under so that polymeric packaging material is hung upside down on screening hook 14.
Specific implementation mode three：Illustrate present embodiment, a kind of non-drop of septic tank of present embodiment in conjunction with Fig. 1-Figure 13
Residue sorting unit is solved, high molecular material screening wheel is machined on the screening babinet 11 and the side wall of separation babinet 12
Installing port 23 is equipped with high molecular material screening wheel installation lid at the high molecular material screening wheel installing port 23 by bolt
Plate 24, the left and right ends of the high molecular material screening wheel 13 are mounted on the side wall and height of screening babinet 11 by bearing respectively
Molecular material screening wheel is installed on cover board 24；It is installed respectively by bearing the left and right ends of the high molecular material screening wheel 13
On the side wall and high molecular material screening wheel installation cover board 24 of separation babinet 12, it is mounted on the macromolecule material detached in babinet 12
Expect that screening wheel 13 realizes the separation of high molecular material with the cooperation of high molecular material separating wheel 19.So set, in separation babinet 12
Inside, high molecular material screening wheel 13 and high molecular material separating wheel 19 are counter-rotation so that hang upside down and screened in high molecular material
Polybag on wheel 13 separates under the action of high molecular material separating wheel 19 with high molecular material screening wheel 13；
Further, there is polybag to export 64 for the bottom end of separation babinet 12, and the inside of separation babinet 12, which is additionally provided with, blows
Wind turbine 65, under the action of hair-dryer 65, the polybag after the separation of high molecular material separating wheel 19 is blown to polybag and goes out
At mouth 64, and by 64 discharge of polybag outlet, the present invention can export in polybag and be provided with belt mechanism at 64, pass through biography
The dynamic transport that the high molecule plastic packaging after separation is realized with mechanism.
Specific implementation mode four：Illustrate present embodiment, a kind of non-drop of septic tank of present embodiment in conjunction with Fig. 1-Figure 13
Residue sorting unit is solved, the screening babinet 11 and separation babinet 12 are interconnected, the screening babinet 11 and separation
The first installing port 25 and the second installing port 26, first installing port 25 and second peace are machined on the side wall of babinet 12 respectively
The dress connection of mouth 26 forms rectangle high molecular material screening wheel installing port 27, and the opening of high molecular material screening wheel installing port 27 is left
Single axis sliding rail 28 is installed on right side wall, screening wheel mounting base is provided in the high molecular material screening wheel installing port 27
Plate 29, screening wheel installation seat plate 29 are " boss-shaped " mounting plate, and the left and right sides wall of screening wheel installation seat plate 29 is separately installed with
Single axis slide 30, the screening wheel installation seat plate 29 are slidably mounted on height by single axis slide 30 and single axis sliding rail 28
In molecular material screening wheel installing port 27,13 left and right ends of high molecular material screening wheel are mounted on sieve by bearing respectively
On choosing wheel installation seat plate 29, screening wheel installation seat plate 29 can be in length under the action of single axis slide 30 and single axis sliding rail 28
Sliding in rectangular high molecular material screening wheel installing port 27, and then drive the macromolecule material being mounted on screening wheel installation seat plate 29
Expect that screening wheel 13 realizes that the installation site in screening babinet 11 and separation babinet 12 is adjusted；The screening wheel installation seat plate 29
Upper and lower ends pass through the opening top and bottom sidewall of Telescopic protective cover 31 and high molecular material screening wheel installing port 27 respectively and establish and connect
It connects；The connectivity part of the screening babinet 11 and separation babinet 12 is additionally provided with separation baffles 32, and the separation baffles 32 are adopted
It is mounted on screening babinet 11 with inserting mode and detaches the connectivity part of babinet 12.So set, screening babinet 11 and separation babinet
Screening wheel installation seat plate 29, screening wheel peace are installed inside the rectangle high molecular material screening wheel installing port 27 that 12 intercommunications are formed
High molecular material screening wheel 13 is installed on dress seat board 29, screening wheel installation seat plate 29 is by can under the action of sliding rail and sliding block
Realize that screening operation and realization high molecular material screening wheel 13 of the high molecular material screening wheel 13 in screening babinet 11 are detaching
Mask work in babinet 12, this mechanism by screening wheel installation seat plate 29 are ingenious in design, avoid reciprocal dismounting high score
Sub- material screening wheel 13 works, and while providing convenience for operator, and the completion for capableing of high efficiency and high quality is non-degradable
Material screens and mask work；
The screening babinet 11 of the present invention and the connectivity part of separation babinet 12 are additionally provided with separation baffles 32, work as macromolecule in this way
Material screening wheel 13 is when screening work in babinet 11, it is ensured that screening babinet 11 is a closed babinet, avoids being flowed into sieve
The house refuses such as the rubbish in babinet 11, excrement are selected to be splashed to separation babinet 12, while when high molecular material screening wheel 13 will be slided
It moves when detaching babinet 12, opens separation baffles 32, high molecular material screening wheel 13 is slided into separation babinet 12, is existed at this time
Separation baffles 32 are inserted into screening babinet 11 and detach being connected to for babinet 12, it is ensured that separation babinet 12 is also a closed case
Body avoids separation process polybag from being splashed in screening babinet 11.
Specific implementation mode five：Illustrate present embodiment, a kind of non-drop of septic tank of present embodiment in conjunction with Fig. 1-Figure 13
Residue sorting unit is solved, the high molecular material separating wheel 19 includes separation barrel 33 and setting in 33 outside of separation barrel
The cross section of chorista 34 on wall, the chorista 34 is trapezoidal, and multiple arcs separating tank 35 is machined on chorista 34,
The arc separating tank 35 includes trapezoid-shaped openings end 36, circular arc open end 37 and square aperture end 38, the trapezoid-shaped openings
End 36, circular arc open end 37 and square aperture end 38 are in turn connected to form slot-type openings.So set, high molecular material separating wheel
The working face of 34 circular array of the trapezoidal chorista arrangement being provided on 19 outer walls, adjacent two trapezoidal choristas 34 is one
A inclined surface (i.e. trapezoidal waist), under the action of this inclined surface and arc separating tank 35,13 side of high molecular material screening wheel
Screening hook 14 on wall is compressed in arc separating tank 35, hangs upside down polybag, macromolecule on screening hook 14 in this way
Packaging material is separated, and the chorista 34 that high molecular material separating wheel 19 of the present invention has can be screened with high molecular material
Mask works are realized in 13 cooperation of wheel, and the structure simple structure of this separate mode, compact, floor space is small, and can high quality,
High efficiency completes the mask work of polybag and high molecular material screening wheel 13.
Specific implementation mode six：Illustrate present embodiment, a kind of non-drop of septic tank of present embodiment in conjunction with Fig. 1-Figure 13
Residue sorting unit is solved, the non-degradable solid particulate filter bodies 2 of septic tank include cylindrical box 39 and filter screen 40, cylinder
The top open part of shape babinet 39 is hingedly equipped with cover board 65, has arrival end, cylinder on the top side wall of cylindrical box 39
There is outlet end, the inner hub location of cylindrical box 39 to be equipped with filter screen mounting base on the bottom end side wall of shape babinet 39
41, the filter screen 40 is mounted in filter screen mounting base 41.
Specific implementation mode seven：Illustrate that present embodiment, a kind of septic tank of present embodiment are non-degradable in conjunction with Fig. 1-Fig. 7
Residue sorting unit, the gas treatment equipment 3 include holding vessel 42, spray equipment 43, folded plate demister 44 and spray
Driving device 45 has gas treatment water inlet 46 on the bottom end side wall of the holding vessel 42, and the bottom end of holding vessel 42 has
There is exhaust outlet 48, the folded plate demister 44 to be mounted on holding vessel 42 on the top of gas treatment water outlet 47, holding vessel 42
Centre position, the spray equipment 43 be mounted on holding vessel 42 in, spray equipment 43 is arranged in the upper of folded plate demister 44
Side.So set, spray equipment can spray alkaline solution and water so that the smell and alkalinity that house refuse, excrement generate are molten
Liquid reacts, and under the action of folded plate demister 44 so that the fog of the formation after reaction hits folded plate demister 44, Jin Erfen
From the acidic materials and moisture in fog, the pollution-free oxidizing gas (such as carbon dioxide) after reaction enters the row of holding vessel 42
Gas port 48 discharges.
Specific implementation mode eight：Illustrate present embodiment, a kind of non-drop of septic tank of present embodiment in conjunction with Fig. 1-Figure 13
Residue sorting unit is solved, the spray equipment 43 includes support base 49, spray pipe mounting seat 50, supporting rack 51, spray tube
52, support base installation lid 53, the first bevel gear 54 and water pipe universal joint 55, the support base 49 are truncated cone-shaped support base,
The supporting rack 51 that support base 49 is welded with by its outer wall is arranged in 42 inner hub location of holding vessel, spray tube installation
Seat 50 may be rotatably mounted at by bearing inside support base 49, and support base installs lid 53 and is mounted on 49 upper end of support base, described
The upper end of spray pipe mounting seat 50 is equipped with the first bevel gear 54, and the lower end periphery of spray pipe mounting seat 50 has been evenly arranged multiple
Spray tube 52 is machined with water pipe channel 56, end and the spray tube 52 of water pipe channel 56 inside the spray pipe mounting seat 50
Connection, the input end of water pipe channel 56 are equipped with water pipe universal joint 55, and water pipe universal joint 55 passes through water pipe 57 and external alkali
Water tank is connected to；
The spray driving device 45 includes motor 58, electric machine support 59, rotation axis 60 and the second bevel gear 61, described
Motor 58 by electric machine support 59 be mounted on holding vessel 42 outer wall on, the output end of motor 58 is connected with rotation axis 60, turn
Moving axis 60 passes through the side wall of holding vessel to be arranged in inside holding vessel 42, and 60 end of rotation axis is equipped with the second bevel gear 61, and second
Bevel gear 61 engages installation with the first bevel gear 54；
The folded plate demister 44 includes cylindrical folded plate frame 62 and the folding on cylindrical folded plate frame 62
Plate 63, when flue gas passes through 44 inside of demister of rotation, under the action of folded plate 63, gas is mixed to form spray water with aqueous slkali
The area of drop, misty droplets impact folded plate increases, under demister and spray equipment effect, the sulphur with rubbish, excrement generation
The fog of compound fully reflects with lye, the acidic materials such as sulfide contained in house refuse of having gone out, and in clear mistake
The folded plate demister of journey, rotation can receive the moisture sprayed from spray equipment, and moisture comes into full contact with folded plate so that washes away
It is with obvious effects, solve the burden for needing mutual disassembly to clean when existing demister cleaning.
Specific implementation mode nine：Illustrate present embodiment, a kind of non-drop of septic tank of present embodiment in conjunction with Fig. 1-Figure 13
Residue method for separating is solved, is included the following steps：
Step 1: the installation non-degradable residue sorting unit of septic tank
Septic tank high molecular material screening plant 1, the non-degradable solid particulate filter bodies 2 of septic tank and gas treatment are filled
It sets 3 to be sequentially arranged on sorting unit supporting rack 4, the water inlet 6 of septic tank high molecular material screening plant 1 is in life after installation
Sewage conduct connects, and the water outlet 47 of gas treatment equipment 3 is connected to septic tank；
Step 2: carrying out polymeric packaging material screening
Run septic tank high molecular material screening plant 1 so that the objects such as excrement, rubbish in sanitary sewer stream exist
High molecular material screening wheel 13 in septic tank high molecular material screening plant 1 and it is mounted on 13 side wall of high molecular material screening wheel
On screening hook 14 effect under so that polymeric packaging material hang upside down screening hook 14 on；
Step 3: carrying out polymeric packaging material separation
The high molecular material screening wheel 13 that polymeric packaging material is overworked in step 2 is mounted on inside separation babinet 12,
In the case where the high molecular material separating wheel 19 of separation babinet 12 acts on so that hang upside down the polymeric packaging material on screening hook 14
It is detached with screening hook 14；
Step 4: carrying out polymeric solid material screening
The objects such as excrement, the rubbish after screening polymeric packaging material screening are carried out in step 3 passes through septic tank macromolecule
The water outlet 7 of material screening plant 1 is flowed into inside the non-degradable solid particulate filter bodies of septic tank 2, non-degradable in septic tank
Under the action of filter screen 40 in solid particulate filter bodies 2, the screening of polymeric solid material is realized；
Step 5: gas treatment in progress sanitary sewage
Sanitary sewage, excrement and rubbish after polymeric solid material screening are carried out in step 4 passes through the second connecting tube
9 are flowed into inside gas treatment equipment 3, and inside gas treatment equipment 3, odorous gas is in spray equipment 43 and folded plate demister
Sanitary sewage gas treatment is realized under the action of 44.
Specific implementation mode ten：Illustrate present embodiment, a kind of non-degradable residue sorting of septic tank in conjunction with Fig. 1-Figure 13
The application method of device, includes the following steps：
Step a, septic tank high molecular material screening plant is run, it is non-to complete sanitary sewage, excrement and rubbish inner packing class
The screening and separation of degradation residue；
High molecular material screening wheel 13 with screening hook 14 is mounted on by bearing on the side wall of screening babinet 11,
And the driven pulley of high molecular material screening wheel 13 17 is passed through into belt and the master for being mounted on 15 output end of the first driving motor
The dynamic cooperation of belt pulley 18 installation starts the first driving electricity when sanitary sewage, excrement and rubbish enter screening 11 inside of babinet
Machine 15, at this time the first driving motor 15 drive high molecular material screening wheel 13 to rotate, in rotation process, life water, excrement and rubbish
The non-degradable residue of rubbish inner packing class is hung upside down on the hook of the screening on high molecular material screening wheel 13 14；
When hanging with a certain amount of packaging group non-degradable residue on screening hook 14, by high molecular material screening wheel 13
Dismounting, and the high molecular material screening wheel installing port 23 by being arranged on the side wall of separation babinet 12 is mounted on separation babinet 12
Inside, by the driven pulley 17 of high molecular material screening wheel 13 by belt and mounted on 16 output end of the second driving motor
At the same time the cooperation installation of drive pulley 18 passes through the high molecular material separating wheel 19 inside separation babinet 12
Driven separation belt pulley 20 actively detaches belt on 21 output shaft of third driving motor for detaching 12 upper end of babinet
Wheel 22 cooperation installation, be separately operable the second driving motor 16 and third driving motor 21 so that high molecular material separating wheel 19 with
High molecular material screening wheel 13 realizes the separation of the dress non-degradable residue of class to rotation；
Step b, the non-degradable solid particulate filter bodies of septic tank are run, solid is non-in completion life water, excrement and rubbish
The screening of degradation residue；
Sanitary sewage, excrement and the rubbish that screening and the separation of the non-degradable residue of packaging group are completed in step a pass through
First connecting tube 8 enters in the cylindrical box 39 of the non-degradable solid particulate filter bodies of septic tank 2, in cylindrical box 39
Inside there is filter screen mounting base 41, filter screen 40 is installed in filter screen mounting base 41, filter screen 40 is flute profile filter screen,
Its size is adapted with 39 inner wall of cylindrical box, under the action of filter screen 40, solid in realization life water, excrement and rubbish
Non-degradable residue screening；
Step c, gas treatment equipment is run, the smell processing of life water, excrement and rubbish is carried out；
Sanitary sewage, excrement and the rubbish of the screening of the non-degradable residue of solid are completed in stepb by the second connection
Pipe 9 enters in the holding vessel 42 of gas treatment equipment 3, and 42 inside of holding vessel has spray equipment 43 and folded plate demister 44,
The rotation of the driving motor 58 of spray equipment 43 drives the rotation of the second bevel gear 61, the second bevel gear 61 to be nibbled with the first bevel gear 54
The rotation for installing and then realizing spray pipe mounting seat 50 in support base 49 is closed, is equipped in the bottom end of spray pipe mounting seat 50
Spray tube 52, spray tube 52 spray moisture or alkaline solution and exist with the gas containing sulfide in sanitary sewage, excrement and rubbish
44 lower end of folded plate demister mixes, when the mixed gas containing mist flows through demister with certain speed, due to gas
Inertial impaction acts on, and the drop that mist collides with corrugated folded plate 63 and gathered arrives greatly the gravity of its own generation more than gas
When climbing power and the resultant force of surface tension of liquid, drop is just separated from waveform plate surface, and then is realized and lived
The smell of water, excrement and rubbish is handled.The structures that are folded to of demister corrugated sheet increase the chance that mist is captured more, not by except
The mist gone is captured at next turning by identical effect, such repeated action, to substantially increase demisting
Efficiency.
Present embodiment is only to the exemplary description of this patent does not limit its scope of protection, people in the art
Member can also be changed its part, as long as it does not exceed the essence of this patent, within the protection scope of the present patent.
Claims (4)
1. a kind of non-degradable residue sorting unit of septic tank, it is characterised in that：Including septic tank high molecular material screening plant
(1), the non-degradable solid particulate filter bodies of septic tank (2), gas treatment equipment (3) and sorting unit supporting rack (4), sorting dress
Setting supporting rack (4), there are multiple support legs, septic tank high molecular material screening plant (1) to be fixedly mounted on point by pedestal (5)
On the left side of screening device supporting rack (4), the top of septic tank high molecular material screening plant (1) has water inlet (6), changes excrement
The bottom of pond high molecular material screening plant (1) has water outlet (7), the non-degradable solid particulate filter bodies of the septic tank
(2) centre position of sorting unit supporting rack (4), the water outlet of septic tank high molecular material screening plant (1) are fixedly mounted on
(7) it is connected to the top of the non-degradable solid particulate filter bodies of septic tank (2) by the first connecting tube (8), septic tank is non-degradable
The bottom end of solid particulate filter bodies (2) is by the second connecting tube (9) and on sorting unit supporting rack (4) right side
Gas treatment equipment (3) establishes connection.
2. the non-degradable residue sorting unit of a kind of septic tank according to claim 1, it is characterised in that：The change excrement
Pond high molecular material screening plant (1) includes drive case (10), screening babinet (11) and separation babinet (12), the driving
The upper surface of babinet (10) is inclined surface, and the first driving motor (15) and the second driving motor are provided in drive case (10)
(16), the screening babinet (11) is closed box, and the cross section of screening babinet (11) is rectangular, and screening babinet (11) tilts
The upper end of upper surface mounted on drive case (10), screening babinet (11) has entering for septic tank high molecular material screening plant
The mouth of a river (6), the lower end of screening babinet (11) have the water outlet (7) of septic tank high molecular material screening plant (1), screen babinet
(11) installation is evenly arranged with sieve there are two high molecular material screening wheel (13) on the side wall of high molecular material screening wheel (13) in
Choosing hook (14), the output end of two high molecular material screening wheels (13) are equipped with driven pulley (17), two macromolecule materials
Expect that the driven pulley (17) of screening wheel (13) is exported by belt and the first driving motor (15) and the second driving motor (16)
Drive pulley (18) the cooperation installation at end, the separation babinet (12) are mounted on the upper surface of screening babinet (11), separation
The lower end of babinet (12) has discharge port, and high molecular material separating wheel (19), high molecular material are equipped in separation babinet (12)
Driven separation belt pulley (20) is installed, the upper end of separation babinet (12) is equipped with third driving electricity in the shaft of separating wheel (19)
Machine (21) is equipped on the output shaft of third driving motor (21) and actively detaches belt pulley (22), actively detaches belt pulley (22)
By belt belt pulley (20) cooperation installation is detached with driven.
3. the non-degradable residue sorting unit of a kind of septic tank according to claim 1, it is characterised in that：The non-drop of septic tank
It includes cylindrical box (39) and filter screen (40), the open top of cylindrical box (39) to solve solid particulate filter bodies (2)
Place is hingedly equipped with cover board (65), has arrival end, the bottom of cylindrical box (39) on the top side wall of cylindrical box (39)
There is outlet end, the inner hub location of cylindrical box (39) is equipped with filter screen mounting base (41), described on the wall of end side
Filter screen (40) is mounted in filter screen mounting base (41).
4. the non-degradable residue sorting unit of a kind of septic tank according to claim 1, it is characterised in that：The gas
Processing unit (3) includes holding vessel (42), spray equipment (43), folded plate demister (44) and sprays driving device (45), described
Holding vessel (42) bottom end side wall on have gas treatment water inlet (46), the bottom end of holding vessel (42) goes out with gas treatment
There is exhaust outlet (48), the folded plate demister (44) to be mounted on holding vessel (42) on the top at the mouth of a river (47), holding vessel (42)
Centre position, the spray equipment (43) be mounted on holding vessel (42) in, spray equipment (43) be arranged in folded plate demister
(44) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810379771.4A CN108585402B (en) | 2018-04-25 | 2018-04-25 | Septic tank non-degradation residue sorting unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810379771.4A CN108585402B (en) | 2018-04-25 | 2018-04-25 | Septic tank non-degradation residue sorting unit |
Publications (2)
| Publication Number | Publication Date |
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| CN108585402A true CN108585402A (en) | 2018-09-28 |
| CN108585402B CN108585402B (en) | 2021-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810379771.4A Active CN108585402B (en) | 2018-04-25 | 2018-04-25 | Septic tank non-degradation residue sorting unit |
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|---|---|---|---|---|
| CN201132158Y (en) * | 2007-11-21 | 2008-10-15 | 聂树广 | Self-cleaning rotary hook tooth type knot screen |
| CN202238876U (en) * | 2011-10-13 | 2012-05-30 | 任洋洋 | Separating device for plastic bags in household garbage |
| CN102690032A (en) * | 2012-06-13 | 2012-09-26 | 郑百祥 | Anaerobic tank sewage disposal method and disposal equipment thereof |
| KR20140054732A (en) * | 2012-10-29 | 2014-05-09 | 김숙희 | Method and arrangement for manufacturing functional feed and liquid fertilizer from food waste by using saccharization-decomposition processing apparatus |
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2018
- 2018-04-25 CN CN201810379771.4A patent/CN108585402B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201132158Y (en) * | 2007-11-21 | 2008-10-15 | 聂树广 | Self-cleaning rotary hook tooth type knot screen |
| CN202238876U (en) * | 2011-10-13 | 2012-05-30 | 任洋洋 | Separating device for plastic bags in household garbage |
| CN102690032A (en) * | 2012-06-13 | 2012-09-26 | 郑百祥 | Anaerobic tank sewage disposal method and disposal equipment thereof |
| KR20140054732A (en) * | 2012-10-29 | 2014-05-09 | 김숙희 | Method and arrangement for manufacturing functional feed and liquid fertilizer from food waste by using saccharization-decomposition processing apparatus |
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| CN108585402B (en) | 2021-05-18 |
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