CN108424261A - A kind of preparation method of tea grounds particle slow release organic fertilizer - Google Patents

A kind of preparation method of tea grounds particle slow release organic fertilizer Download PDF

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Publication number
CN108424261A
CN108424261A CN201810477325.7A CN201810477325A CN108424261A CN 108424261 A CN108424261 A CN 108424261A CN 201810477325 A CN201810477325 A CN 201810477325A CN 108424261 A CN108424261 A CN 108424261A
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China
Prior art keywords
tea grounds
organic fertilizer
tea
agent
compost
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CN201810477325.7A
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Chinese (zh)
Inventor
林海燕
张志旭
谭斌
陈金华
施玲
周耀
柳英
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Hunan Agricultural University
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Hunan Agricultural University
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Priority to CN201810477325.7A priority Critical patent/CN108424261A/en
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    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F3/00—Fertilisers from human or animal excrements, e.g. manure
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
    • C05F17/50—Treatments combining two or more different biological or biochemical treatments, e.g. anaerobic and aerobic treatment or vermicomposting and aerobic treatment
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
    • C05G3/80—Soil conditioners
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G5/00—Fertilisers characterised by their form
    • C05G5/30—Layered or coated, e.g. dust-preventing coatings
    • C05G5/37—Layered or coated, e.g. dust-preventing coatings layered or coated with a polymer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse

Abstract

The present invention provides a kind of preparation method of tea grounds particle slow release organic fertilizer, step is：1) tea grounds pre-processes；2) it mixes；3) compost；4) dry, crushing, granulation；5) pressure-difference and puffing；6) overlay film；7) packaging and other steps.Not only stable quality, fertility are good for tea grounds particle slow release organic fertilizer prepared by the method for the present invention, while having the effect of water conservation, sustained release, and the comprehensive utilization to solve to discard tea grounds provides new approach.

Description

A kind of preparation method of tea grounds particle slow release organic fertilizer
Technical field
The invention belongs to organic fertilizer technical fields, and in particular to a kind of preparation method of tea grounds particle slow release organic fertilizer.
Background technology
Just there is tea drinking habit in China from ancient times,《Tea passes through》" tea is drink, sends out Shen Nongshi, life of the tea in Chinese for record It is extremely important in custom.Military king cuts down the Zhou, and tealeaves has been used as tribute.Primitive commune's later stage, tealeaves become the article that cargo exchanges.War State, tealeaves have certain scale.In Han dynasty, tealeaves has become the special invigorant of Buddhism " sitting in meditation ".Early Medieval China, existing drink The wind of tea.The Sui Dynasty, the whole people generally drink tea.The Tang Dynasty, Tea Industry are prosperous, and tealeaves becomes " other can not nothing on the one ", teahouse, tea occurs It fetes, tea party, promotion is presented the visitor with a cup of hot tea.The Song dynasty, popular bucket tea, tribute tea and gift tea etc..
With the development of society, in the ceremony infused tea, served tea and drink tea, under the tea culture sampled tea renders, the use shape of tea Formula also constantly changes, and forms the tea production that instant tea, tea beverage, tea polyphenol health products etc. meet the current living habit of people Product.While producing, processing these tea products, necessarily lead to a large amount of tea grounds waste.According to statistics, China is discharged every year Tea grounds waste reaches 160,000 tons, and minute quantity tea grounds waste is effectively handled, and most of tea grounds is stacked for nature, passes through Expose to the weather, the peripherad farmland of a large amount of tea grounds sewage stream and river give out peculiar smell, not only cause environmental pollution, also tight Biomass resource is wasted again.Studies have shown that tea grounds contains tea polyphenols 0%~2.0%, caffeine 0.1%~0.3%, crude protein 17%~19%, crude fibre 16%~18%, the content of lysine and methionine is respectively 1.5%~2.0% and 0.5%~ 0.7%；In addition, tea grounds nitrogenous 2.5%~4.0%, phosphorus pentoxide 0.4%, potassium oxide 1.4%, organic carbon 38.1%, carbon nitrogen Than being 15~20, therefore tea grounds is a kind of waste that potential utility value is high, can be used as organic fertilizer, feed, adsorbent, Culture medium raw material, for extracting the active ingredients such as albumen, tea polysaccharide.
Organic fertilizer refers to that can provide a variety of inorganic nutrients of crops and organic nutrient and training containing organic substance A kind of fertilizer of fertilizer improvement soil, while crop quality can also be improved, crop yield is improved, high crop yield stable yields is promoted, is protected Soil fertility is held, utilization rate of fertilizer is improved, reduces production cost, extremely meets the demand of green agriculture development.In the prior art The technical solution that organic fertilizer is produced using tea grounds as raw material has been disclosed, as Chinese patent (publication number 107162837A) is open A kind of tea grounds organic fertilizer and preparation method thereof, raw material include 100 parts of tea grounds in parts by weight, and niblet or corn flour 10~ 20 parts, 5~10 parts of ground phosphate rock, 2~5 parts of bacterium solution, 5~10 parts of flue-cured tobacco or flue-cured tobacco powder and 20~40 parts of water.Preparation method is wrapped successively It includes：Tea grounds, corn and flue-cured tobacco are crushed respectively；The tea grounds, corn and ground phosphate rock of crushing are uniformly mixed and beat heap；In heap accomplished fluently Upper tidewater；It is inoculated with bacterium solution；Flat heap；Turning and the flue-cured tobacco that crushing is added；Play heap.The tea grounds organic fertilizer N-P-K content is high, to flower The fertilizer efficiency of grass and crops, economic plants and fruit-bearing forest is good, and has prolonged fertilizer efficiency, and the tea grounds organic fertilizer is environmentally friendly, Environmentally protective, safely cleaning, odorless, indoor and outdoor is safe to use, has a wide range of application.
As Chinese patent (publication number 104086246A) discloses a kind of side producing rich iron organic fertilizer using discarded tea grounds Method, the tea grounds that tea processing industry is generated carry out mixed fermentation in proportion with cow dung, sucrose, decay agent, are formed rich in ferrous iron The rich iron organic fertilizer of ion, chelated iron.The present invention produces rich iron organic fertilizer using trade waste tea grounds, turns waste into wealth, It is good for the environment, while the validity of inorganic iron fertilizer can be improved, be conducive to plant growth.
If Chinese patent (publication number 106866219A) discloses a kind of tea grounds organic fertilizer, by the raw material of following parts by weight It is made：38~46 parts of tea grounds, 20~30 parts of peanut shell, 30~36 parts of rotted pig manure, 25~31 parts of chicken manure, 3~5 parts of Trichoderma, 10~50 parts of 1~3 part of bacillus subtilis, 3~5 parts of ferment bacterium and water-retaining agent.It is an advantage of the invention that preparation process is simply easy Row, fertilizer efficiency is comprehensive, fertilizer efficiency is long；In addition, the present invention realizes its recycling, effectively using tea grounds, pig manure, chicken manure the like waste Protect environment, saved resource.
In above-mentioned technical proposal, although prepare organic fertilizer using tea grounds as primary raw material, it can be achieved that tea grounds waste it is reasonable It utilizes, but still has room for improvement.
Invention content
Tea grounds available sources are relatively more, can be the residues for producing tea beverage, can also be the residue for extracting tea polyphenols Object can also be to extract the residue of Tea Saponin, but the tea grounds that various processes obtain differs greatly, and one can be remained in tea grounds A little different organic solvents or processing aid, the residue in these tea grounds are unfavorable for the production and quality control of organic fertilizer； In addition, tealeaves is wide in variety, there are black tea, green tea, yellow tea etc., therefore there is also differences for the organic fertilizer of different tealeaves preparations； Based on the above, the prior art recycle tea grounds prepare organic fertilizer when, it is difficult to accurately control the quality stability of organic fertilizer.To solve The above problem, the present invention provides a kind of preparation methods of tea grounds particle slow release organic fertilizer.
The present invention is achieved through the following technical solutions.
A kind of preparation method of tea grounds particle slow release organic fertilizer, it is characterised in that step is：
1) tea grounds pre-processes：3~7 times of clear water of tea grounds and tea grounds weight is mixed, one is placed in ultrasonic cleaning later In machine, 10~30min is handled under conditions of 200~400W of power, 40~60Hz of frequency, is stirred continuously simultaneously, later by tea Slag, which is pulled out, carries out press filtration, crushing；
2) it mixes：Step (1) treated tea grounds is subjected to Multidimensional and Hybrid；
3) compost：It will be adjusted through step (2) treated tea grounds and straw powder, fowl and animal excrement, EM bacteria agent, the wooden enzyme, strain Agent, poising agent are uniformly mixed, and later plus water adjustment moisture is 55~60% progress compost；Compost is using first anaerobic composting 5 ~30d, then 4~12d of aerobic compost；Every turning in 2~4 days 1 time in the anaerobic composting, aerobic composting process；It is described to detest Oxygen compost is controlled at 25~32 DEG C, and the aerobic compost is controlled at 50~65 DEG C；
4) dry, crushing, granulation：It is tedded after compost, until moisture is 20~35%, is crushed to grain later Degree is 20~30 mesh, then is pelletized, and tea grounds granular organic fertilizer is obtained；
5) pressure-difference and puffing：Will tea grounds granular organic fertilizer be added pressurized tank under 12~18MPa pressure conditions maintain 2~ 4min instant decompression and vacuumizes so that vacuum degree maintains 0.80~0.96MPa, maintains 3~5min, moment is broken later later Vacuum, you can；
6) overlay film：Overlay film liquid is uniformly first sprayed in the surface of step (5) treated tea grounds granular organic fertilizer, is then sprayed Then organic binders spray water-retaining agent, it is 8~15% then to be dried in 35~45 DEG C to moisture；
7) it packs.
As optimal technical scheme, the tea grounds that is used in the step (1) be extraction tea polyphenols, extraction tea extract, Extracting caffeine, prepare it is one or more in the remaining discarded tea grounds of instant tea.
As optimal technical scheme, in the step (3), tea grounds and straw powder, fowl and animal excrement, EM bacteria agent, the wooden enzyme, strain The ratio of conditioning agent, poising agent by weight is：22~45 parts of tea grounds, 15~28 parts of straw powder, 20~32 parts of fowl and animal excrement, EM 0.5~1 part of microbial inoculum, 0.1~0.2 part of the wooden enzyme, 1~3 part of strain conditioning agent, 7~11 parts of poising agent.
As optimal technical scheme, in the step (6), the overlay film liquid is water-soluble converted starch solution.
As optimal technical scheme, in the step (6), the organic binders poly-vinyl alcohol solution.
As optimal technical scheme, in the step (6), the water-retaining agent is super absorbent resin.
As optimal technical scheme, in the step (6), the overlay film liquid, organic binders, water-retaining agent have with tea grounds particle The additive amount of the weight meter of machine fertilizer is respectively：5~10%, 2~7%, 3~5%.
Advantageous effect of the present invention：
1) present invention cleans tea grounds using ultrasonic wave, can remove remaining different solvents in tea grounds and add Work auxiliary agent；Multidimensional and Hybrid is further utilized, the greater homogeneity of tea grounds can be made, the organic fertilizer stablized with the quality of production；
2) present invention wraps up overlay film liquid, organic binders, water-retaining agent respectively by film-coating technique in organic fertilizer surface, can be with The tea grounds organic fertilizer of preparation is set to have the effect of water conservation, sustained release；
3) present invention forms the graininess of form stable, can be convenient for tea by being granulated to organic fertilizer before overlay film The application of residue organic fertilizer；In addition, carrying out expanding treatment to the organic fertilizer after granulation by pressure-difference and puffing, granular organic fertilizer can be made Inside formed porous channel, so that the release of fertilizer nutrient can generate better slow release effect in conjunction with film coating technique.
Index using the tea grounds particle slow release organic fertilizer of the method for the present invention preparation is as follows：
Project Index
Granularity (1.00mm~4.75mm or 3.35mm~5.60mm)/% 95~99
Fertilizer releasing periodd/ the moon 5~7
Initial stage nutrient release ratee/ % ≤13.4
28 days accumulative nutrient release ratese/ % ≤73.5
Above-mentioned fertilizer releasing period, initial stage nutrient release rate, 28 days accumulative nutrient release rates use the side of GB23348-2009 Method is detected.
Specific implementation mode
The present invention is described further With reference to embodiment, it is pointed out that following implementation is only It is the indicative explaination done to the present invention in the form of enumerating, but protection scope of the present invention is not limited to that, Suo Youben The technical staff in field each falls within protection scope of the present invention with the equivalent replacement that the spirit of the present invention is the present invention.
Embodiment 1
A kind of preparation method of tea grounds particle slow release organic fertilizer, it is characterised in that step is：
1) tea grounds pre-processes：3~7 times of clear water of tea grounds and tea grounds weight is mixed, one is placed in ultrasonic cleaning later In machine, 10~30min is handled under conditions of 200~400W of power, 40~60Hz of frequency, is stirred continuously simultaneously, later by tea Slag, which is pulled out, carries out press filtration, crushing；
2) it mixes：Step (1) treated tea grounds is subjected to Multidimensional and Hybrid；
3) compost：It will be adjusted through step (2) treated tea grounds and straw powder, fowl and animal excrement, EM bacteria agent, the wooden enzyme, strain Agent, poising agent are uniformly mixed, and later plus water adjustment moisture is 55~60% progress compost；Compost is using first anaerobic composting 5 ~30d, then 4~12d of aerobic compost；Every turning in 2~4 days 1 time in the anaerobic composting, aerobic composting process；It is described to detest Oxygen compost is controlled at 25~32 DEG C, and the aerobic compost is controlled at 50~65 DEG C；
4) dry, crushing, granulation：It is tedded after compost, until moisture is 20~35%, is crushed to grain later Degree is 20~30 mesh, then is pelletized, and tea grounds granular organic fertilizer is obtained；
5) pressure-difference and puffing：Will tea grounds granular organic fertilizer be added pressurized tank under 12~18MPa pressure conditions maintain 2~ 4min instant decompression and vacuumizes so that vacuum degree maintains 0.80~0.96MPa, maintains 3~5min, moment is broken later later Vacuum, you can；
6) overlay film：Overlay film liquid is uniformly first sprayed in the surface of step (5) treated tea grounds granular organic fertilizer, is then sprayed Then organic binders spray water-retaining agent, it is 8~15% then to be dried in 35~45 DEG C to moisture；
7) it packs.
Embodiment 2
A kind of preparation method of tea grounds particle slow release organic fertilizer, it is characterised in that step is：
1) tea grounds pre-processes：3 times of clear water of tea grounds and tea grounds weight is mixed, one is placed in supersonic wave cleaning machine later It is interior, handle 30min under conditions of power 200W, frequency 40Hz, be stirred continuously simultaneously, later by tea grounds pull out carry out press filtration, Crushing；
2) it mixes：Step (1) treated tea grounds is subjected to Multidimensional and Hybrid；
3) compost：It will be adjusted through step (2) treated tea grounds and straw powder, fowl and animal excrement, EM bacteria agent, the wooden enzyme, strain Agent, poising agent are uniformly mixed, and later plus water adjustment moisture is 55~60% progress compost；Compost is using first anaerobic composting 28d, then aerobic compost 10d；Every turning in 2 days 1 time in the anaerobic composting, aerobic composting process；The anaerobic composting control Temperature processed is 25~32 DEG C, and the aerobic compost is controlled at 50~65 DEG C；
4) dry, crushing, granulation：It is tedded after compost, until moisture is 20~35%, is crushed to grain later Degree is 20~30 mesh, then is pelletized, and tea grounds granular organic fertilizer is obtained；
5) pressure-difference and puffing：Tea grounds granular organic fertilizer is added in pressurized tank and maintains 4min under 12~18MPa pressure conditions, It instant decompression and vacuumizes later so that vacuum degree maintains 0.80~0.96MPa, maintains 3min, later moment vacuum breaker, i.e., It can；
6) overlay film：Overlay film liquid is uniformly first sprayed in the surface of step (5) treated tea grounds granular organic fertilizer, is then sprayed Then organic binders spray water-retaining agent, it is 8~15% then to be dried in 35~45 DEG C to moisture；
7) it packs.
Embodiment 3
A kind of preparation method of tea grounds particle slow release organic fertilizer, it is characterised in that step is：
1) tea grounds pre-processes：7 times of clear water of tea grounds and tea grounds weight is mixed, one is placed in supersonic wave cleaning machine later It is interior, handle 10min under conditions of power 400W, frequency 60Hz, be stirred continuously simultaneously, later by tea grounds pull out carry out press filtration, Crushing；
2) it mixes：Step (1) treated tea grounds is subjected to Multidimensional and Hybrid；
3) compost：It will be adjusted through step (2) treated tea grounds and straw powder, fowl and animal excrement, EM bacteria agent, the wooden enzyme, strain Agent, poising agent are uniformly mixed, and later plus water adjustment moisture is 55~60% progress compost；Compost is using first anaerobic composting 5d, then aerobic compost 4d；Every turning in 2 days 1 time in the anaerobic composting, aerobic composting process；The anaerobic composting control Temperature is 25~32 DEG C, and the aerobic compost is controlled at 50~65 DEG C；
4) dry, crushing, granulation：It is tedded after compost, until moisture is 20~35%, is crushed to grain later Degree is 20~30 mesh, then is pelletized, and tea grounds granular organic fertilizer is obtained；
5) pressure-difference and puffing：Tea grounds granular organic fertilizer is added in pressurized tank and maintains 4min under 12~18MPa pressure conditions, It instant decompression and vacuumizes later so that vacuum degree maintains 0.80~0.96MPa, maintains 35min, later moment vacuum breaker, i.e., It can；
6) overlay film：Overlay film liquid is uniformly first sprayed in the surface of step (5) treated tea grounds granular organic fertilizer, is then sprayed Then organic binders spray water-retaining agent, it is 8~15% then to be dried in 35~45 DEG C to moisture；
7) it packs.
Embodiment 4
A kind of preparation method of tea grounds particle slow release organic fertilizer, it is characterised in that step is：
1) tea grounds pre-processes：5 times of clear water of tea grounds and tea grounds weight is mixed, one is placed in supersonic wave cleaning machine later It is interior, handle 20min under conditions of power 300W, frequency 50Hz, be stirred continuously simultaneously, later by tea grounds pull out carry out press filtration, Crushing；
2) it mixes：Step (1) treated tea grounds is subjected to Multidimensional and Hybrid；
3) compost：It will be adjusted through step (2) treated tea grounds and straw powder, fowl and animal excrement, EM bacteria agent, the wooden enzyme, strain Agent, poising agent are uniformly mixed, and later plus water adjustment moisture is 55~60% progress compost；Compost is using first anaerobic composting 15d, then aerobic compost 9d；Every 3d turnings 1 time in the anaerobic composting, aerobic composting process；The anaerobic composting control Temperature is 25~32 DEG C, and the aerobic compost is controlled at 50~65 DEG C；
4) dry, crushing, granulation：It is tedded after compost, until moisture is 20~35%, is crushed to grain later Degree is 20~30 mesh, then is pelletized, and tea grounds granular organic fertilizer is obtained；
5) pressure-difference and puffing：Will tea grounds granular organic fertilizer be added pressurized tank under 12~18MPa pressure conditions maintain 2~ 4min instant decompression and vacuumizes so that vacuum degree maintains 0.80~0.96MPa, maintains 3~5min, moment is broken later later Vacuum, you can；
6) overlay film：Overlay film liquid is uniformly first sprayed in the surface of step (5) treated tea grounds granular organic fertilizer, is then sprayed Then organic binders spray water-retaining agent, it is 8~15% then to be dried in 35~45 DEG C to moisture；
7) it packs.
Embodiment 5
A kind of preparation method of tea grounds particle slow release organic fertilizer, it is characterised in that step is：
1) tea grounds pre-processes：3~7 times of clear water of tea grounds and tea grounds weight is mixed, one is placed in ultrasonic cleaning later In machine, 10~30min is handled under conditions of 200~400W of power, 40~60Hz of frequency, is stirred continuously simultaneously, later by tea Slag, which is pulled out, carries out press filtration, crushing；Wherein, the tea grounds used is extraction tea polyphenols, extraction tea extract, extraction coffee Because, prepare it is one or more in the remaining discarded tea grounds of instant tea.
2) it mixes：Step (1) treated tea grounds is subjected to Multidimensional and Hybrid；
3) compost：It will be adjusted through step (2) treated tea grounds and straw powder, fowl and animal excrement, EM bacteria agent, the wooden enzyme, strain The ratio of agent, poising agent by weight is：22~45 parts of tea grounds, 15~28 parts of straw powder, 20~32 parts of fowl and animal excrement, EM bacteria agent 0.5~1 part, 0.1~0.2 part of the wooden enzyme, 1~3 part of strain conditioning agent, 7~11 parts of poising agent mixed, and later plus water adjusts water It is 55~60% progress compost to divide content；Compost uses 5~30d of first anaerobic composting, then 4~12d of aerobic compost；The anaerobism Every turning in 2~4 days 1 time in compost, aerobic composting process；The anaerobic composting is described aerobic controlled at 25~32 DEG C Compost is controlled at 50~65 DEG C；
4) dry, crushing, granulation：It is tedded after compost, until moisture is 20~35%, is crushed to grain later Degree is 20~30 mesh, then is pelletized, and tea grounds granular organic fertilizer is obtained；
5) pressure-difference and puffing：Will tea grounds granular organic fertilizer be added pressurized tank under 12~18MPa pressure conditions maintain 2~ 4min instant decompression and vacuumizes so that vacuum degree maintains 0.80~0.96MPa, maintains 3~5min, moment is broken later later Vacuum, you can；
6) overlay film：First water-soluble converted starch is uniformly sprayed in the surface of step (5) treated tea grounds granular organic fertilizer Then solution sprays poly-vinyl alcohol solution, then spray super absorbent resin, is then in 35~45 DEG C of drying to moistures 8~15%；Wherein, the water-soluble converted starch solution, poly-vinyl alcohol solution, super absorbent resin are with tea grounds granular organic fertilizer The additive amount of weight meter be respectively：5~10%, 2~7%, 3~5%；
7) it packs.

Claims (7)

1. a kind of preparation method of tea grounds particle slow release organic fertilizer, it is characterised in that step is：
1) tea grounds pre-processes：3~7 times of clear water of tea grounds and tea grounds weight is mixed, one is placed in supersonic wave cleaning machine later, 10~30min is handled under conditions of 200~400W of power, 40~60Hz of frequency, is stirred continuously, is later pulled tea grounds out simultaneously Carry out press filtration, crushing；
2) it mixes：Step (1) treated tea grounds is subjected to Multidimensional and Hybrid；
3) compost：It will be through step (2) treated tea grounds and straw powder, fowl and animal excrement, EM bacteria agent, the wooden enzyme, strain conditioning agent, flat Agent of weighing is uniformly mixed, and later plus water adjustment moisture carries out compost for 55~60%；Compost uses 5~30d of first anaerobic composting, Then 4~12d of aerobic compost；Every turning in 2~4 days 1 time in the anaerobic composting, aerobic composting process；The anaerobic composting Controlled at 25~32 DEG C, the aerobic compost is controlled at 50~65 DEG C；
4) dry, crushing, granulation：It is tedded after compost, until moisture is 20~35%, being crushed to granularity later is 20~30 mesh, then pelletize, obtain tea grounds granular organic fertilizer；
5) pressure-difference and puffing：Tea grounds granular organic fertilizer is added in pressurized tank and maintains 2~4min under 12~18MPa pressure conditions, It instant decompression and vacuumizes later so that vacuum degree maintains 0.80~0.96MPa, maintains 3~5min, later moment vacuum breaker, ；
6) overlay film：Overlay film liquid is uniformly first sprayed in the surface of step (5) treated tea grounds granular organic fertilizer, is then sprayed organic Then stick sprays water-retaining agent, it is 8~15% then to be dried in 35~45 DEG C to moisture；
7) it packs.
2. a kind of preparation method of tea grounds particle slow release organic fertilizer as described in claim 1, it is characterised in that the step (1) The middle tea grounds used is extraction tea polyphenols, extraction tea extract, extracting caffeine, prepares the remaining discarded tea grounds of instant tea In it is one or more.
3. a kind of preparation method of tea grounds particle slow release organic fertilizer as described in claim 1, it is characterised in that the step (3) In, tea grounds and straw powder, fowl and animal excrement, EM bacteria agent, the wooden enzyme, strain conditioning agent, the ratio of poising agent by weight are：Tea grounds 22 ~45 parts, 15~28 parts of straw powder, 20~32 parts of fowl and animal excrement, 0.5~1 part of EM bacteria agent, 0.1~0.2 part of the wooden enzyme, strain adjusting 1~3 part of agent, 7~11 parts of poising agent.
4. a kind of preparation method of tea grounds particle slow release organic fertilizer as described in claim 1, it is characterised in that the step (6) In, the overlay film liquid is water-soluble converted starch solution.
5. a kind of preparation method of tea grounds particle slow release organic fertilizer as described in claim 1, it is characterised in that the step (6) In, the organic binders poly-vinyl alcohol solution.
6. a kind of preparation method of tea grounds particle slow release organic fertilizer as described in claim 1, it is characterised in that the step (6) In, the water-retaining agent is super absorbent resin.
7. a kind of preparation method of tea grounds particle slow release organic fertilizer as described in claim 1, it is characterised in that the step (6) In, the overlay film liquid, the additive amount of organic binders, water-retaining agent in terms of the weight of tea grounds granular organic fertilizer are respectively：5~10%, 2 ~7%, 3~5%.
CN201810477325.7A 2018-05-17 2018-05-17 A kind of preparation method of tea grounds particle slow release organic fertilizer Pending CN108424261A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108975965A (en) * 2018-09-17 2018-12-11 甘肃省农业科学院旱地农业研究所 A kind of preparation method of the biological organic fertilizer based on tea grounds and sheep dung
CN110698233A (en) * 2019-11-13 2020-01-17 常思桂 Method for recycling tea leaves used as fertilizer after drinking
CN110922255A (en) * 2019-12-30 2020-03-27 中国热带农业科学院分析测试中心 Fertilizer suitable for tea and preparation method thereof
CN114409481A (en) * 2022-01-25 2022-04-29 安徽科技学院 Efficient liquid biological organic fertilizer produced by using edible fungus residues and preparation method thereof

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CN103304280A (en) * 2013-06-16 2013-09-18 广西桂人堂金花茶产业集团股份有限公司 Ecological organic fertilizer for preparing golden camellia tea residues and production method thereof
CN107056460A (en) * 2017-04-28 2017-08-18 天长市天兴园林绿化工程有限公司 A kind of flowers slow release fertilizer and preparation method thereof
CN107400015A (en) * 2017-08-30 2017-11-28 广西那坡县翠株园林业科技有限公司 A kind of camellia pericarp biological organic fertilizer and preparation method thereof

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CN103304280A (en) * 2013-06-16 2013-09-18 广西桂人堂金花茶产业集团股份有限公司 Ecological organic fertilizer for preparing golden camellia tea residues and production method thereof
CN107056460A (en) * 2017-04-28 2017-08-18 天长市天兴园林绿化工程有限公司 A kind of flowers slow release fertilizer and preparation method thereof
CN107400015A (en) * 2017-08-30 2017-11-28 广西那坡县翠株园林业科技有限公司 A kind of camellia pericarp biological organic fertilizer and preparation method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108975965A (en) * 2018-09-17 2018-12-11 甘肃省农业科学院旱地农业研究所 A kind of preparation method of the biological organic fertilizer based on tea grounds and sheep dung
CN110698233A (en) * 2019-11-13 2020-01-17 常思桂 Method for recycling tea leaves used as fertilizer after drinking
CN110922255A (en) * 2019-12-30 2020-03-27 中国热带农业科学院分析测试中心 Fertilizer suitable for tea and preparation method thereof
CN114409481A (en) * 2022-01-25 2022-04-29 安徽科技学院 Efficient liquid biological organic fertilizer produced by using edible fungus residues and preparation method thereof

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Application publication date: 20180821