CN107759939A - A kind of preparation method of biodegradable mulch film - Google Patents
A kind of preparation method of biodegradable mulch film Download PDFInfo
- Publication number
- CN107759939A CN107759939A CN201710958666.1A CN201710958666A CN107759939A CN 107759939 A CN107759939 A CN 107759939A CN 201710958666 A CN201710958666 A CN 201710958666A CN 107759939 A CN107759939 A CN 107759939A
- Authority
- CN
- China
- Prior art keywords
- preparation
- mulch film
- mixer
- biodegradable mulch
- push
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L29/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical; Compositions of hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Compositions of derivatives of such polymers
- C08L29/02—Homopolymers or copolymers of unsaturated alcohols
- C08L29/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/06—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices
- B29B7/08—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices shaking, oscillating or vibrating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/06—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices
- B29B7/10—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary
- B29B7/18—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with more than one shaft
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/22—Component parts, details or accessories; Auxiliary operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/80—Component parts, details or accessories; Auxiliary operations
- B29B7/802—Constructions or methods for cleaning the mixing or kneading device
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D7/00—Producing flat articles, e.g. films or sheets
- B29D7/01—Films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/06—Biodegradable
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The invention provides a kind of preparation method of biodegradable mulch film.It is excessively complicated that it solves the step of existing preparation method, and prepares ambient parameter and require higher, prepares the technical problem such as cumbersome.The preparation method of this biodegradable mulch film, comprises the following steps：A, dispensing；B, it is granulated；C, blown film；D, perforate；E, pack.The present invention, which has, prepares the advantages of facilitating.
Description
Technical field
The present invention relates to a kind of preparation method, particularly a kind of preparation method of biodegradable mulch film.
Background technology
Agricultural mulching is the important means of production of modern agricultural production, not only with moisturizing, water conservation, fertilizer conservation, insect prevention, suppression grass
Etc. function, soil moisture can also be kept, improve efficiency of water application, while improve crop growth environment, improve farming produce
Amount and agricultural benefit, therefore application is relatively broad.But the pollution that common mulch film remains to soil is also on the rise, in plant species
Be difficult to reclaim after having planted, in soil on a century can not degrade, by accumulation for many years, in soil mulch film residual cause soil
It is hardened, the problems such as causing crop yield degradation and environmental pollution.
Through retrieval, as Chinese patent literature discloses a kind of preparation method of modified starch biodegradable film【Application number：
201610484009.3；Publication number：CN 105968423A】.The preparation method of this modified starch biodegradable film, it is special
Sign is that specific preparation process is：(1) weigh 5~10g sweet potato starch and be added to three mouthfuls of burnings with thermometer and reflux
In bottle, it is placed in water-bath, control temperature sequentially adds 200~300mL deionized waters, 2~4g into flask at 65~75 DEG C
Sodium chloride, 5~10min of magnetic agitation, after being well mixed, 0.5mol/L sodium hydroxide solutions are added into flask, regulation pH is
9.8~10.0, then 0.2~0.4g epoxychloropropane is added into flask, 4~5h of stirring reaction, obtain crosslinked starch；(2) to
0.1~0.3g acetic anhydride is added in above-mentioned crosslinked starch, temperature controlled water baths are at 75~85 DEG C, 2~3h of stirring reaction, reaction knot
Beam, it is 38% acetum to add mass concentration into beaker, and regulation pH is 6.5~6.7, filters, obtains filter residue, filter residue is spent
Ion water washing 3~5 times, it is placed in 95~105 DEG C of baking ovens and dries 1~2h, obtain esterified and cross-linked starch；(3) by above-mentioned crosslinking
Esterification starch is added in the three-necked flask with thermometer and agitating device, is placed in water-bath, is sequentially added 0.2~0.4g
Polyvinyl alcohol, 20~30mL glycerine, 200~300mL deionized waters, temperature controlled water baths stir 1~2h at 50~60 DEG C, to
5~7mL glyoxals, 1~3g urea are sequentially added in flask, 2~3h of stirring reaction, obtains the reactant that viscosity is 1.2N/cm；
(4) reactant that above-mentioned viscosity is 1.2N/cm is uniformly laid on polyester piece, be put into baking oven, done at 60~70 DEG C
Dry 12~14h, when waiting tiling film inviscid, taking-up polyester piece, which is placed into air, naturally cools to room temperature, then shells film
From getting off, you can obtain a kind of modified starch biodegradable film.
Although film prepared by the preparation method disclosed in the patent has good biodegradability, the system
The step of Preparation Method, is excessively complicated, and prepares ambient parameter and require higher, prepares cumbersome, therefore, designs one kind and biological can drop
The preparation method for solving mulch film is necessary.
The content of the invention
The purpose of the present invention is above mentioned problem be present for existing technology, it is proposed that a kind of system of biodegradable mulch film
Preparation Method, the preparation method, which has, prepares the characteristics of facilitating.
The purpose of the present invention can be realized by following technical proposal：A kind of preparation method of biodegradable mulch film, its
It is characterised by, comprises the following steps：
A, dispensing：According to percentage by weight, following raw material is weighed：Polyvinyl alcohol 75-85%, tapioca 2-5%, corn
Starch 1-4%, cellulase 1-2%, sodium hypochlorite 4-8%, epoxidized vegetable oil 4-7%, antioxidant 0.8-1.2%, thermostabilization
Agent 0.6-0.9%, glycerine 1-6%, ultra-violet absorber 0.5-0.8%, formaldehyde 0.03-0.12% and urea 2-5%, by original
Material is put into dispensing equipment simultaneously, is stirred, is obtained masterbatch mix；
B, it is granulated：Masterbatch mix is granulated by comminutor, obtains degraded polypropylene master batch；
C, blown film：Degraded polypropylene master batch is blow molded into film by inflation film manufacturing machine, blown film temperature is 180-200 DEG C, obtain half into
Product film；
D, perforate：According to the requirement of crop-planting, semi-finished product film is subjected to perforate by tapping machine, obtained biodegradable
Mulch film；
E, pack：Biodegradable mulch film is wound into encapsulation storage.
Using above method, pass through dispensing, granulation, blown film, perforate and packaging and other steps, so that it may realize biodegradablely
The preparation of film, multioperation is crossed without artificial, it is convenient to prepare.
Antioxidant in the step a is Sodium Metabisulfite.
Heat stabilizer in the step a is carboxymethyl cellulose.
Dispensing equipment in the step a includes base, and mixer, mixer top tool are fixed with by support on base
There is charging aperture, mixer bottom has discharging opening, and discharge outlet is provided with magnetic valve, and being provided with base can be in mixer
The shaker mechanism that material is shaken and the rabbling mechanism being stirred.
The operation principle of dispensing equipment is as follows：All kinds of raw materials are added in mixer by charging aperture, by shaking machine
Structure makes all kinds of raw materials shake up and down, and all kinds of raw materials are stirred by rabbling mechanism, and the compound prepared exports from discharging opening,
The time of dispensing can be greatly reduced, dispensing is quick.
The shaker mechanism includes push-rod electric machine, vibrating motor, hairbrush and shake frame, push-rod electric machine and is fixed on mixer
Portion, straight down, the push rod end of push-rod electric machine is extend into batcher by spring and shake the push-rod electric machine of push-rod electric machine
Frame is connected, and vibrating motor is fixed on shake frame upper end by connecting rod one, and hairbrush is fixed on shake frame lower end by connecting rod two.
When needing to make all kinds of raw materials in mixer to shake up and down, the push rod of push-rod electric machine is controlled to move up and down, push rod electricity
The push rod of machine drives shake frame to move up and down, and control vibrating motor work, vibrating motor makes shake frame shake up and down, meanwhile, tremble
Dynamic frame band electric brush is shaken up and down, and hairbrush can fall the raw material brush at mixer inwall, and shake effect is good；According to being actually needed,
It can be used for clearing up the inwall of mixer.
The section of the shake frame is rhombus.
Using above structure, conveniently shake frame can be moved up and down in mixer.
Some through holes are further opened with the shake frame.
Observation panel is further opened with the mixer, transparent access panel is provided with observation panel.
Using above structure, it can be facilitated by access panel and the situation in mixer is checked, checked directly perceived.
The access panel is transparent organic plates.
The conveyer belt for conveying material is tiltedly installed with the base, and conveyer belt is located at the underface of discharging opening.
Using above structure, by conveyer belt the compound that will be prepared can be facilitated to be transported to required place, reduced artificial
Carry.
The material of the mixer is stainless steel.
Using above material, it can make mixer that there is longer service life.
The rabbling mechanism includes support column one, support column two, Mobile base one, Mobile base two, lifting ring one and lifting ring
Two, support column one is fixed on base, and Mobile base one is arranged on support column one, and Mobile base one can drive it to move up and down with one
Moving structure one be connected, be fixed with servomotor one on Mobile base one, the output shaft of servomotor one straight down, lifting ring
One is connected by link one with the output shaft end of servomotor one, and some rotary shafts one are provided with lifting ring one, is rotated
The upper end of axle one can drive its servomotor two rotated to be connected with one, and the lower end of rotary shaft one is provided with supplemental cartridge one, and auxiliary
Help cylinder one to be located in mixing drum, on the lower end outside face of supplemental cartridge one have some protrusions press section one, supplemental cartridge one it is upper
There are some stirring sheets one on the lateral surface of end, the upper end of supplemental cartridge one is blind end, and the bottom of supplemental cartridge one, which is provided with, is in
Horn-like input pipe one, the osculum end of input pipe one are connected with the lower end of supplemental cartridge one, the big opening end of input pipe one down,
Flexible shim one is set in supplemental cartridge one, and the inside of supplemental cartridge one is separated into lower mixing part one and upper storage by shim one
Material portion one, the lower end of supplemental cartridge one are further opened with some delivery outlets one being connected with lower mixing part one, also set on support column one
It is equipped with the driving structure one that shim one can be driven to act；Support column two is fixed on base, and Mobile base two is arranged on support column
On two, Mobile base two can drive its moving structure two moved up and down to be connected with one, and servomotor three is fixed with Mobile base two,
Straight up, lifting ring two is connected the output shaft of servomotor three by link two with the output shaft end of servomotor three,
Some rotary shafts two are provided with lifting ring two, the lower end of rotary shaft two can drive its servomotor four rotated to be connected with one,
The upper end of rotary shaft two is provided with supplemental cartridge two, and supplemental cartridge two is located in mixing drum, has on the upper end lateral surface of supplemental cartridge two
There are the press section two of some protrusions, and press section two and the interlaced arrangement of press section one, have above the lower end outside of supplemental cartridge two
Some stirring sheets two, the bottom of supplemental cartridge two is blind end, and the upper end of supplemental cartridge two is provided with horn-like input pipe
Two, the osculum end of input pipe two is connected with the upper end of supplemental cartridge two, and the big opening end of input pipe two upward, is set in supplemental cartridge two
Flexible shim two is put, the inside of supplemental cartridge two is separated into upper mixing part two and lower storing portion two by shim two, auxiliary
The upper end of cylinder two is further opened with some delivery outlets two being connected with upper mixing part two, is additionally provided with to drive on support column two and divides
The driving structure two that partition two acts.
Using above structure, Mobile base one is driven to move up and down by moving structure one, Mobile base one drives lifting ring one
Move up and down, lifting ring one drives supplemental cartridge one to move up and down, and supplemental cartridge one drives input pipe one to move up and down, with input pipe
One is moved up and down, and the raw material of the upper, middle and lower of mixer everywhere is input in supplemental cartridge one, makes shim by driving structure one
One is upwardly-deformed, and raw material is stored in upper storing portion one；Mobile base two is driven to move up and down by moving structure two, Mobile base
Two drive lifting rings two move up and down, and lifting ring two drives supplemental cartridge two to move up and down, and supplemental cartridge two drives input pipe about two
It is mobile, as input pipe two moves up and down, by mixer it is lower on raw material everywhere be input in supplemental cartridge two, pass through driving
Structure two makes shim two deform downwards, and raw material is stored in lower storing portion two；
The output shaft rotation of servomotor one is controlled, the output shaft of servomotor one drives link one to rotate, link
One drive lifting ring one rotates, and lifting ring one drives supplemental cartridge one to rotate, and controls the output shaft rotation of servomotor two, servo electricity
The output shaft of machine two drives rotary shaft one to rotate, and rotary shaft one drives the rotation of supplemental cartridge one, and supplemental cartridge one drives one turn of stirring sheet
It is dynamic, meanwhile, shim one is deformed downwards by driving structure one, the raw material in upper storing portion one is pushed downwards, with auxiliary
The rotation of cylinder one is helped, the raw material in upper storing portion one is output to mixer everywhere from delivery outlet one；Control servomotor
Three output shaft rotation, the output shaft of servomotor three drive link two to rotate, and link two drives lifting ring two to rotate, and rises
Drop ring two drives supplemental cartridge two to rotate, and controls the output shaft rotation of servomotor four, and the output shaft of servomotor four, which drives, to be rotated
Axle two rotates, and rotary shaft two drives the rotation of supplemental cartridge two, and supplemental cartridge two drives stirring sheet two to rotate, meanwhile, pass through driving structure
Two make shim two upwardly-deformed, and the raw material in lower storing portion two is pushed upwards, with the rotation of supplemental cartridge two, by lower storing
Raw material in portion two is output to mixer everywhere from delivery outlet two；
Meanwhile move up and down lifting ring one by moving structure one, make to move down on lifting ring two by moving structure two
It is dynamic, the lower mixing part one of supplemental cartridge one can be made to be in contact both sides with the upper mixing part two of supplemental cartridge two, with supplemental cartridge
One and supplemental cartridge two rotate, the raw material exported at delivery outlet one and delivery outlet two can be carried out by press section one and press section two
Extruding；So as to by the collective effect of supplemental cartridge one and supplemental cartridge two, all kinds of raw materials be stirred, mixing effect is good.
The moving structure one includes cylinder one, guide rail one and sliding block one, and guide rail one is fixed on support column one vertically, sliding
Block one is arranged on guide rail one, and cylinder one is fixed on support column one, the piston rod of cylinder one straight down, the piston of cylinder one
Boom end is connected with sliding block one, and Mobile base one is fixed on sliding block one.
When needing to move up and down Mobile base one, the piston rod of control cylinder one moves up and down, the piston rod of cylinder one
Band movable slider one moves up and down along guide rail one, and sliding block one drives Mobile base one to move up and down, so as to make Mobile base about one
It is mobile.
The moving structure two includes cylinder two, guide rail two and sliding block two, and guide rail two is fixed on support column two vertically, sliding
Block two is arranged on guide rail two, and cylinder two is fixed on support column two, the piston rod of cylinder two straight up, the piston of cylinder two
Boom end is connected with sliding block two, and Mobile base two is fixed on sliding block two.
When needing to move up and down Mobile base two, the piston rod of control cylinder two moves up and down, the piston rod of cylinder two
Band movable slider two moves up and down along guide rail two, and sliding block two drives Mobile base two to move up and down, so as to make Mobile base about two
It is mobile.
The shape of the press section one is in coniform, and the shape of press section two is in coniform.
Using above structure, press section one and press section two can be enable preferably to extrude the raw material in mixer,
It is broken so as to which raw material is squeezed.
As another situation, the shape of the press section one is in round table-like, and the shape of press section two is in round table-like.
Using above structure, press section one and press section two can be enable preferably to extrude the raw material in mixer,
It is broken so as to which raw material is squeezed.
The driving structure one includes gas-storing bag one, air pump one and tracheae one, one end of tracheae one and the upper phase of storing portion one
Connection, the other end of tracheae one are connected with gas-storing bag one, and air pump one is arranged on tracheae one.
Using above structure, air pump one is opened, the gas in gas-storing bag one is transported to by upper storing portion one by tracheae one
In, as air pressure gradually increases in upper storing portion one, shim one is deformed downwards, the raw material in upper storing portion one is pushed down on
Send；Air pump one is opened, the gas in upper storing portion one is transported in gas-storing bag one by tracheae one, with upper storing portion one
Air pressure is gradually reduced, and makes shim one upwardly-deformed, can be stored in raw material in upper storing portion one.
The driving structure two includes gas-storing bag two, air pump two and tracheae two, one end of tracheae two and lower storing portion two-phase
Connection, the other end of tracheae two are connected with gas-storing bag two, and air pump two is arranged on tracheae two.
Using above structure, air pump two is opened, the gas in gas-storing bag two is transported to by lower storing portion two by tracheae two
In, as air pressure gradually increases in lower storing portion two, make shim two upwardly-deformed, the raw material in lower storing portion two is pushed up
Send；Air pump two is opened, the gas in lower storing portion two is transported in gas-storing bag two by tracheae two, with lower storing portion two
Air pressure is gradually reduced, and shim two is deformed downwards, can be stored in raw material in lower storing portion two.
Flow control valve one is additionally provided with the tracheae one, flow control valve two is additionally provided with tracheae two.
Using above structure, the gas size in tracheae one can be adjusted by flow control valve one, pass through flow
The gas size in tracheae two can be adjusted for regulating valve two, easy to adjust.
Be further fixed on controller on the base, servomotor one, servomotor two, servomotor three, servomotor four,
Cylinder one, cylinder two, air pump one and air pump two-way are crossed circuit and are connected with the controller.
Using above structure, servomotor one, servomotor two, servomotor three, servo electricity can control by controller
Machine four, cylinder one, cylinder two, air pump one and air pump two act, and intelligence degree is high.
Compared with prior art, the preparation method of this biodegradable mulch film has the advantage：In the present invention by dispensing,
Granulation, blown film, perforate and packaging and other steps, so that it may realize the preparation of biodegradable mulch film, cross multioperation without artificial, prepare
It is convenient.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of the present invention.
Fig. 2 is the partial enlarged drawing at A in Fig. 1.
Fig. 3 is the dimensional structure diagram of rabbling mechanism in the present invention.
Fig. 4 is the dimensional structure diagram that part is removed in the present invention.
In figure, 1, base；2nd, gas-storing bag two；3rd, guide rail two；4th, support column two；5th, cylinder two；6th, sliding block two；7th, Mobile base
Two；8th, servomotor three；9th, link two；10th, controller；11st, conveyer belt；12nd, support；13rd, magnetic valve；14th, mixer；
14a, charging aperture；14b, discharging opening；15th, spring；16th, frame is shaken；17th, hairbrush；18th, access panel；19th, vibrating motor；20th, connect
Frame one；21st, servomotor one；22nd, Mobile base one；23rd, sliding block one；24th, cylinder one；25th, guide rail one；26th, gas-storing bag one；27、
Flow control valve one；28th, air pump one；29th, tracheae one；30th, push-rod electric machine；31st, support column one；32nd, tracheae two；33rd, air pump two；
34th, flow control valve two；36th, lifting ring one；37th, servomotor two；38th, rotary shaft one；39th, stirring sheet one；41st, supplemental cartridge
One；41a, upper storing portion one；41b, lower mixing part one；41c, press section one；41d, delivery outlet one；42nd, input pipe one；43rd, it is defeated
Enter pipe two；44th, supplemental cartridge two；44a, lower storing portion two；44b, upper mixing part two；44c, press section two；44d, delivery outlet two；
45th, stirring sheet two；46th, rotary shaft two；47th, servomotor four；48th, lifting ring two；49th, shim one；50th, shim two.
Embodiment
It is the specific embodiment of the present invention and with reference to accompanying drawing below, technical scheme is further described,
But the present invention is not limited to these embodiments.
The preparation method of this biodegradable mulch film, comprises the following steps：
A, dispensing：According to percentage by weight, following raw material is weighed：Polyvinyl alcohol 75-85%, tapioca 2-5%, corn
Starch 1-4%, cellulase 1-2%, sodium hypochlorite 4-8%, epoxidized vegetable oil 4-7%, antioxidant 0.8-1.2%, thermostabilization
Agent 0.6-0.9%, glycerine 1-6%, ultra-violet absorber 0.5-0.8%, formaldehyde 0.03-0.12% and urea 2-5%, by original
Material is put into dispensing equipment simultaneously, is stirred, is obtained masterbatch mix；In the present embodiment, according to percentage by weight, claim
Take following raw material：Polyvinyl alcohol 76%, tapioca 3%, cornstarch 2%, cellulase 1%, sodium hypochlorite 5%, epoxy
Vegetable oil 6%, antioxidant 0.8%, heat stabilizer 0.6%, glycerine 2%, ultra-violet absorber 0.5%, formaldehyde 0.1% and urine
Element 3%, raw material is put into dispensing equipment simultaneously, stirs, mixing time 25min, obtains masterbatch mix；It is ultraviolet
Light absorbers use the existing auxiliary agent that in the market can be bought；
B, it is granulated：Masterbatch mix is granulated by comminutor, obtains degraded polypropylene master batch；
C, blown film：Degraded polypropylene master batch is blow molded into film by inflation film manufacturing machine, blown film temperature is 180-200 DEG C, obtain half into
Product film；In the present embodiment, degraded polypropylene master batch is blow molded into film by inflation film manufacturing machine, blown film temperature is 188 DEG C, obtains semi-finished product
Film；
D, perforate：According to the requirement of crop-planting, semi-finished product film is subjected to perforate by tapping machine, obtained biodegradable
Mulch film；
E, pack：Biodegradable mulch film is wound into encapsulation storage.
Using this method, pass through dispensing, granulation, blown film, perforate and packaging and other steps, so that it may realize biodegradable mulch film
Preparation, cross multioperation without artificial, it is convenient to prepare.
Antioxidant in step a is Sodium Metabisulfite.
Heat stabilizer in step a is carboxymethyl cellulose.
As Figure 1-Figure 4, the dispensing equipment in step a includes base 1, and dispensing is fixed with by support 12 on base 1
Bucket 14, the top of mixer 14 has charging aperture 14a, and the bottom of mixer 14 has discharging opening 14b, electricity is provided with discharging opening 14b
Magnet valve 13, the shaker mechanism that can be shaken to the material in mixer 14 and the mixer being stirred are provided with base 1
Structure.
Shaker mechanism includes push-rod electric machine 30, vibrating motor 19, hairbrush 17 and shake frame 16, and push-rod electric machine 30, which is fixed on, matches somebody with somebody
The top of charging basket 14, in the present embodiment, push-rod electric machine 30 are fixed on the top of mixer 14 by bolted connection；Push rod electricity
Straight down, the push rod end of push-rod electric machine 30 is extend into batcher by spring 15 and shake frame the push-rod electric machine 30 of machine 30
16 are connected, and in the present embodiment, the push rod end of push-rod electric machine 30 is connected with the upper end of spring 15, the lower end of spring 15 and shake frame 16
It is connected；Vibrating motor 19 is fixed on shake frame 16 upper end by connecting rod one, and hairbrush 17 is fixed under shake frame 16 by connecting rod two
End.
The section for shaking frame 16 is rhombus；Using the structure, conveniently shake frame 16 can be moved up and down in mixer 14.
Some through holes are further opened with shake frame 16, in the present embodiment, the quantity of through hole is 30.
Observation panel is further opened with mixer 14, transparent access panel 18 is provided with observation panel；Using the structure, pass through
Access panel 18 can facilitate to be checked to the situation in mixer 14, is checked directly perceived.
Access panel 18 is transparent organic plates.
The conveyer belt 11 for conveying material is tiltedly installed with base 1, in the present embodiment, conveyer belt 11 uses market
On the existing product that can buy；And conveyer belt 11 is located at the underface of discharging opening.
The material of mixer 14 is stainless steel；Using the material, it can make mixer 14 that there is longer service life.
Rabbling mechanism includes support column 1, support column 24, Mobile base 1, Mobile base 27, lifting ring 1 and risen
Ring 2 48 is dropped, and support column 1 is fixed on base 1, and in the present embodiment, support column 1 is fixed on by way of welding
On base 1；Mobile base 1 is arranged on support column 1, and Mobile base one 22 and one can drive the moving structure that it is moved up and down
One is connected, and servomotor 1 is fixed with Mobile base 1, in the present embodiment, is bolted on Mobile base 1
Mode is fixed with servomotor 1；Straight down, lifting ring 1 passes through link 1 to the output shaft of servomotor 1
It is connected with the output shaft end of servomotor 1, some rotary shafts 1 is provided with lifting ring 1, in the present embodiment,
The quantity of rotary shaft 1 is six；The upper end of rotary shaft 1 can drive its servomotor 2 37 rotated to be connected with one,
In the present embodiment, the quantity of servomotor 2 37 is six, and servomotor 2 37 is fixed on lifting ring 1；Rotary shaft 1
Lower end be provided with supplemental cartridge 1, and supplemental cartridge 1 is located in mixing drum, has on the lower end outside face of supplemental cartridge 1
The 41c of press section one of some protrusions, in the present embodiment, the 41c of press section one quantity is 50；The upper end of supplemental cartridge 1
There are some stirring sheets 1, in the present embodiment, the quantity of stirring sheet is three on lateral surface；The upper end of supplemental cartridge 1
For blind end, the bottom of supplemental cartridge 1 is provided with horn-like input pipe 1, the osculum end of input pipe 1 and auxiliary
The lower end of cylinder 1 is helped to be connected, the big opening end of input pipe 1 down, sets flexible shim one in supplemental cartridge 1
49, in the present embodiment, the existing product that shim 1 can be bought using in the market；Shim 1 is by supplemental cartridge 1
Inside be separated into the lower 41b of mixing part one and the upper 41a of storing portion one, the lower end of supplemental cartridge 1 is further opened with some with lower stirring
The 41d of delivery outlet one that the 41b of portion one is connected, in the present embodiment, the 41d of delivery outlet one quantity is 50；Support column 1
On be additionally provided with can drive shim 1 act driving structure one；Support column 24 is fixed on base 1, in the present embodiment
In, support column 24 is fixed on by way of welding on base 1；Mobile base 27 is arranged on support column 24, Mobile base 27
With one its moving structure two moved up and down can be driven to be connected, servomotor 38 is fixed with Mobile base 27, in the present embodiment
In, servomotor 38 is fixed with Mobile base 27 by bolted connection；The output shaft of servomotor 38 vertically to
On, lifting ring 2 48 is connected by link 29 with the output shaft end of servomotor 38, if being provided with lifting ring 2 48
Dry rotary shaft 2 46, in the present embodiment, the quantity of rotary shaft 2 46 is six；The lower end of rotary shaft 2 46 and one can drive it
The servomotor 4 47 of rotation is connected, and in the present embodiment, the quantity of servomotor 4 47 is six, and servomotor 4 47 is fixed
On lifting ring 2 48；The upper end of rotary shaft 2 46 is provided with supplemental cartridge 2 44, and supplemental cartridge 2 44 is located in mixing drum, auxiliary
There is the 44c of press section two of some protrusions, in the present embodiment, the 44c of press section two quantity on the upper end lateral surface of cylinder 2 44
For 50；And the 44c of press section two and the 41c interlaced arrangements of press section one, have above the lower end outside of supplemental cartridge 2 44 some
Stirring sheet 2 45, in the present embodiment, the quantity of stirring sheet 2 45 is three；The bottom of supplemental cartridge 2 44 is blind end, auxiliary
Help the upper end of cylinder 2 44 to be provided with horn-like input pipe 2 43, the osculum end of input pipe 2 43 and supplemental cartridge 2 44 it is upper
End is connected, and the big opening end of input pipe 2 43 upward, sets flexible shim 2 50, in this implementation in supplemental cartridge 2 44
In example, shim 2 50 uses the existing product that in the market can be bought；Shim 2 50 by the inside points of supplemental cartridge 2 44 every
Into the upper 44b of mixing part two and the lower 44a of storing portion two, the upper end of supplemental cartridge 2 44 is further opened with some with the upper 44b phases of mixing part two
The 44d of delivery outlet two of connection, in the present embodiment, the 44d of delivery outlet two quantity is 50；It is additionally provided with support column 24
The driving structure two that shim 2 50 can be driven to act.
Moving structure one includes cylinder 1, guide rail 1 and sliding block 1, and guide rail 1 is fixed on support column one vertically
On 31, in the present embodiment, guide rail 1 is fixed on support column 1 by bolted connection；Sliding block 1 is arranged on
On guide rail 1, cylinder 1 is fixed on support column 1, and in the present embodiment, cylinder 1 is by bolted connection
It is fixed on support column 1；The piston rod of cylinder 1 straight down, the piston rod end of cylinder 1 and the phase of sliding block 1
Even, Mobile base 1 is fixed on sliding block 1, and in the present embodiment, Mobile base 1 is fixed on by bolted connection
On sliding block 1.
Moving structure two includes cylinder 25, guide rail 23 and sliding block 26, and guide rail 23 is fixed on support column 24 vertically,
In the present embodiment, guide rail 23 is fixed on support column 24 by bolted connection；Sliding block 26 is arranged on guide rail 23
On, cylinder 25 is fixed on support column 24, and in the present embodiment, cylinder 25 is fixed on support by bolted connection
On post 24；Straight up, the piston rod end of cylinder 25 is connected the piston rod of cylinder 25 with sliding block 26, and Mobile base 27 is solid
It is scheduled on sliding block 26, in the present embodiment, Mobile base 27 is fixed on sliding block 26 by bolted connection.
The 41c of press section one shape is in coniform, and the 44c of press section two shape is in coniform；Using the structure, can make to squeeze
The 41c of splenium one and the 44c of press section two can be extruded preferably the raw material in mixer 14, broken so as to which raw material is squeezed.
Certainly, according to actual conditions, this kind of scheme can also be used, the 41c of press section one shape is in round table-like, press section
Two 44c shape is in round table-like；Using the structure, the 41c of press section one and the 44c of press section two can be enable preferably to mixer 14
In raw material extruded, it is broken so as to which raw material is squeezed.
Driving structure one includes gas-storing bag 1, air pump 1 and tracheae 1, one end of tracheae 1 and upper storing portion
One 41a is connected, and the other end of tracheae 1 is connected with gas-storing bag 1, and air pump 1 is arranged on tracheae 1.
Driving structure two includes gas-storing bag 22, air pump 2 33 and tracheae 2 32, one end of tracheae 2 32 and lower storing portion two
44a is connected, and the other end of tracheae 2 32 is connected with gas-storing bag 22, and air pump 2 33 is arranged on tracheae 2 32.
Flow control valve 1 is additionally provided with tracheae 1, flow control valve 2 34 is additionally provided with tracheae 2 32；Adopt
With the structure, the gas size in tracheae 1 can be adjusted by flow control valve 1, pass through flow control valve two
34 the gas size in tracheae 2 32 can be adjusted, easy to adjust.
Controller 10, servomotor 1, servomotor 2 37, servomotor 38, servo electricity are further fixed on base 1
Machine 4 47, cylinder 1, cylinder 25, air pump 1 and air pump 2 33 are connected by circuit with the controller 10；In this implementation
In example, single-chip microcomputer that controller 10 can be bought using in the market, the program of single-chip microcomputer controlled motor and cylinder is existing, its journey
Sequence need not update；Using the structure, servomotor 1, servomotor 2 37, servo can control by controller 10
Motor 38, servomotor 4 47, cylinder 1, cylinder 25, air pump 1 and air pump 2 33 act, and intelligence degree is high.
The operation principle of dispensing equipment is as follows：All kinds of raw materials are added in mixer 14 by charging aperture 14a, control gas
The piston rod band movable slider 1 of cylinder 1 moves up and down along guide rail 1, and sliding block 1 drives and moved down on Mobile base 1
Dynamic, Mobile base 1 drives lifting ring 1 to move up and down, and lifting ring 1 drives supplemental cartridge 1 to move up and down, supplemental cartridge one
41 drive input pipes 1 move up and down, as input pipe 1 moves up and down, by the raw material of the upper, middle and lower of mixer 14 everywhere
It is input in supplemental cartridge 1, opens air pump 1, the gas in the upper 41a of storing portion one is transported to by gas storage by tracheae 1
In bag 1, as air pressure is gradually reduced in the upper 41a of storing portion one, makes shim 1 upwardly-deformed, raw material is stored in
In the 41a of storing portion one；The piston rod band movable slider 26 of cylinder 25 is controlled to be moved up and down along guide rail 23, sliding block 26, which drives, to be moved
Dynamic seat 27 moves up and down, and Mobile base 27 drives lifting ring 2 48 to move up and down, and lifting ring 2 48 drives supplemental cartridge about 2 44
Mobile, supplemental cartridge 2 44 drives input pipe 2 43 to move up and down, as input pipe 2 43 moves up and down, by mixer 14 it is lower in
On raw material everywhere be input in supplemental cartridge 2 44, air pump 2 33 is opened, by tracheae 2 32 by the gas in the lower 44a of storing portion two
Body is transported in gas-storing bag 22, as air pressure is gradually reduced in the lower 44a of storing portion two, shim 2 50 is deformed downwards, by original
Material is stored in the lower 44a of storing portion two；The output shaft of servomotor 1 is controlled to drive link 1 to rotate, link 1
Lifting ring 1 is driven to rotate, lifting ring 1 drives supplemental cartridge 1 to rotate, and the output shaft of control servomotor 2 37 drives
Rotary shaft 1 rotates, and rotary shaft 1 drives the rotation of supplemental cartridge 1, and supplemental cartridge 1 drives stirring sheet 1 to rotate, together
When, air pump 1 is opened, the gas in gas-storing bag 1 is transported in the upper 41a of storing portion one by tracheae 1, with upper
Air pressure gradually increases in the 41a of storing portion one, shim 1 is deformed downwards, the raw material in the upper 41a of storing portion one is pushed down on
Send, with the rotation of supplemental cartridge 1, the raw material in the upper 41a of storing portion one is output to mixer 14 from the 41d of delivery outlet one
Everywhere；The output shaft of servomotor 38 is controlled to drive link 29 to rotate, link 29 drives lifting ring 2 48 to rotate,
Lifting ring 2 48 drives supplemental cartridge 2 44 to rotate, and the output shaft of control servomotor 4 47 drives rotary shaft 2 46 to rotate, and rotates
Axle 2 46 drives the rotation of supplemental cartridge 2 44, and supplemental cartridge 2 44 drives stirring sheet 2 45 to rotate, meanwhile, air pump 2 33 is opened, is passed through
Gas in gas-storing bag 22 is transported in the lower 44a of storing portion two by tracheae 2 32, and with the lower 44a of storing portion two, air pressure is gradual
Increase, makes shim 2 50 upwardly-deformed, the raw material in the lower 44a of storing portion two is pushed upwards, with turning for supplemental cartridge 2 44
It is dynamic, the raw material in the lower 44a of storing portion two is output to mixer 14 everywhere from the 44d of delivery outlet two；Meanwhile pass through lifting ring
1 and lifting ring 2 48 move up and down, the 41b of lower mixing part one of supplemental cartridge 1 and the upper mixing part of supplemental cartridge 2 44 can be made
Both two 44b side is in contact, and as supplemental cartridge 1 and supplemental cartridge 2 44 rotate, passes through the 41c of press section one and press section
Two 44c can be extruded the raw material exported at the 41d of delivery outlet one and the 44d of delivery outlet two；So as to pass through supplemental cartridge 1 and auxiliary
The collective effect of cylinder 2 44 is helped, meanwhile, the push rod of control push-rod electric machine 30 drives shake frame 16 to move up and down, and controls vibrating motor
19 work, vibrating motor 19 make shake frame be shaken about 16, meanwhile, shake frame 16 is shaken with electric brush about 17, and hairbrush 17 will
Raw material brush at the inwall of mixer 14 falls；So as to which all kinds of raw materials are stirred, the compound prepared is defeated from discharging opening 14b
Go out, by conveyer belt 11 compound that will be prepared can be facilitated to be transported to required place.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology belonging to the present invention is led
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode
Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.
Claims (10)
1. a kind of preparation method of biodegradable mulch film, it is characterised in that comprise the following steps：
A, dispensing：According to percentage by weight, following raw material is weighed：Polyvinyl alcohol 75-85%, tapioca 2-5%, cornstarch
1-4%, cellulase 1-2%, sodium hypochlorite 4-8%, epoxidized vegetable oil 4-7%, antioxidant 0.8-1.2%, heat stabilizer
0.6-0.9%, glycerine 1-6%, ultra-violet absorber 0.5-0.8%, formaldehyde 0.03-0.12% and urea 2-5%, by raw material
Put into simultaneously in dispensing equipment, stir, obtain masterbatch mix；
B, it is granulated：Masterbatch mix is granulated by comminutor, obtains degraded polypropylene master batch；
C, blown film：Degraded polypropylene master batch is blow molded into film by inflation film manufacturing machine, blown film temperature is 180-200 DEG C, obtains semi-finished product film；
D, perforate：According to the requirement of crop-planting, semi-finished product film is subjected to perforate by tapping machine, obtained biodegradablely
Film；
E, pack：Biodegradable mulch film is wound into encapsulation storage.
2. the preparation method of biodegradable mulch film according to claim 1, it is characterised in that anti-in the step a
Oxygen agent is Sodium Metabisulfite.
3. the preparation method of biodegradable mulch film according to claim 1, it is characterised in that the heat in the step a
Stabilizer is carboxymethyl cellulose.
4. the preparation method of biodegradable mulch film according to claim 1, it is characterised in that matching somebody with somebody in the step a
Material equipment includes base, is fixed with mixer by support on base, mixer top has charging aperture, and mixer bottom has
Discharging opening, discharge outlet are provided with magnetic valve, and the shaker mechanism that can be shaken to the material in mixer is provided with base
With the rabbling mechanism being stirred.
5. the preparation method of biodegradable mulch film according to claim 4, it is characterised in that the shaker mechanism includes
Push-rod electric machine, vibrating motor, hairbrush and shake frame, push-rod electric machine are fixed on mixer top, and the push-rod electric machine of push-rod electric machine erects
Straight downward, the push rod end of push-rod electric machine is extend into batcher to be connected by spring with shake frame, and vibrating motor passes through connecting rod
One is fixed on shake frame upper end, and hairbrush is fixed on shake frame lower end by connecting rod two.
6. the preparation method of biodegradable mulch film according to claim 5, it is characterised in that the section of the shake frame
For rhombus.
7. the preparation method of biodegradable mulch film according to claim 5, it is characterised in that also opened on the shake frame
Provided with some through holes.
8. the preparation method of biodegradable mulch film according to claim 4, it is characterised in that also opened on the mixer
Provided with observation panel, transparent access panel is provided with observation panel.
9. the preparation method of biodegradable mulch film according to claim 8, it is characterised in that the access panel is transparent
Organic plates.
10. the preparation method of biodegradable mulch film according to claim 4, it is characterised in that tilted on the base
The conveyer belt for conveying material is provided with, and conveyer belt is located at the underface of discharging opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710958666.1A CN107759939A (en) | 2017-10-16 | 2017-10-16 | A kind of preparation method of biodegradable mulch film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710958666.1A CN107759939A (en) | 2017-10-16 | 2017-10-16 | A kind of preparation method of biodegradable mulch film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107759939A true CN107759939A (en) | 2018-03-06 |
Family
ID=61269398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710958666.1A Pending CN107759939A (en) | 2017-10-16 | 2017-10-16 | A kind of preparation method of biodegradable mulch film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107759939A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111269828A (en) * | 2020-03-30 | 2020-06-12 | 成都虹冉生物科技有限公司 | Process for preparing high-purity lycorine oxide from lycoris radiata by enzyme method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103819794A (en) * | 2014-02-26 | 2014-05-28 | 台州市黄岩阿尔发包装薄膜有限公司 | Preparation method of biodegradable mulching film |
| CN104650387A (en) * | 2013-11-19 | 2015-05-27 | 高俊杰 | Biodegradable agricultural film |
| CN104788863A (en) * | 2015-03-31 | 2015-07-22 | 太仓市晨洲塑业有限公司 | Novel biodegradation plastic film |
| CN205868114U (en) * | 2016-08-15 | 2017-01-11 | 泉州潮策贸易有限公司 | Can effective dirt -proof food processing use mixed machine |
-
2017
- 2017-10-16 CN CN201710958666.1A patent/CN107759939A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104650387A (en) * | 2013-11-19 | 2015-05-27 | 高俊杰 | Biodegradable agricultural film |
| CN103819794A (en) * | 2014-02-26 | 2014-05-28 | 台州市黄岩阿尔发包装薄膜有限公司 | Preparation method of biodegradable mulching film |
| CN104788863A (en) * | 2015-03-31 | 2015-07-22 | 太仓市晨洲塑业有限公司 | Novel biodegradation plastic film |
| CN205868114U (en) * | 2016-08-15 | 2017-01-11 | 泉州潮策贸易有限公司 | Can effective dirt -proof food processing use mixed machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111269828A (en) * | 2020-03-30 | 2020-06-12 | 成都虹冉生物科技有限公司 | Process for preparing high-purity lycorine oxide from lycoris radiata by enzyme method |
| CN111269828B (en) * | 2020-03-30 | 2023-09-29 | 平顶山市慧鑫源生物科技有限公司 | Process for preparing high-purity lycorine oxide from lycoris by enzyme method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206127154U (en) | Novel organic ecological fertilizer -responsive ware | |
| CN206139175U (en) | Polyurethane reation kettle | |
| CN211284190U (en) | Comprehensive system for producing organic fertilizer | |
| CN107759939A (en) | A kind of preparation method of biodegradable mulch film | |
| CN108576831B (en) | System for utilize bean dregs to produce soybean dietary fiber | |
| CN109261502A (en) | A kind of processing of farm products soybean screening plant | |
| CN108522028A (en) | A kind of vegetable seed threshing screening drying unit | |
| CN108840723A (en) | A kind of biomass carbon chicken manure fertilizer process equipment | |
| CN205933676U (en) | Modular assembly formula stirring fermenting installation | |
| CN108201912A (en) | A kind of dry cow dung smashes device | |
| CN207187592U (en) | A kind of biomass fuel mixing arrangement | |
| CN214915212U (en) | Preparation tank for herbicide production | |
| CN215276793U (en) | Fertilizer production is with stirring mixing arrangement | |
| CN1837155A (en) | Innocuous ecological recycling comprehensive utilization of feces from domestic animals and birds through solid-liquid separation and aerobic composting by adding special biological bacteria | |
| CN213739364U (en) | Spices crystallization device | |
| CN204702671U (en) | A kind of container-type natural pond slag prepares organic substrate system | |
| CN210314048U (en) | Fermentation device for producing organic fertilizer | |
| CN209333702U (en) | A kind of screw propelling fertilizer granulation device | |
| CN209643391U (en) | A kind of new and effective mixing mill | |
| CN208824405U (en) | A kind of biological organic fertilizer mixing arrangement | |
| CN209292241U (en) | A kind of agricultural organic fertilizer mixing drying deodorization device | |
| CN208732941U (en) | A kind of feces of livestock and poultry thin layer static aerobic fermentation device | |
| CN208029524U (en) | A kind of vegetable seed threshing screening drying unit | |
| CN215828652U (en) | Fermentation device of bio-feritlizer | |
| CN208136245U (en) | A kind of animals and plants waste installation for fermenting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180306 |