CN102283057A - Method for manufacturing novel slurry-processed multifunction organic environmental-protection flaky mulching film - Google Patents

Abstract

The invention discloses a method for manufacturing a novel slurry-processed multifunction organic environmental-protection flaky mulching film. In the method, the waste stems, peduncles, pulverized powders, leaves and the like of plants or crops are used as raw materials, and a machining process can be effectively controlled according to the mechanical strength, the light transmittance, the ventilation, the heat preservation, the water retention or other particular effects (such as adding a sterilization disinfectant, an extra-nutrition element, a controlled release fertilizer and the like) demanded by the mulching film, and the specific machining process can be chosen according to the actual situation. The slurry-processed flaky mulching film manufactured by the method for manufacturing the novel slurry-processed multifunction organic environmental-protection flaky mulching film has the advantage of economic and environmental protection characteristics, and has the characteristics of rich sources of the raw materials, low cost, biodegradability, soil improvement, time saving, labor saving, high controllability and the like.

Description

A kind of preparation method of the novel multi-functional organic environmental protection thin slice mulch film of thick slurry method

Technical field

Present technique relates to a kind of preparation method of the novel multi-functional organic environmental protection thin slice mulch film of thick slurry method.

Background technology

Effects such as plastic mulching heats because of having, water conservation, accent fertilizer, inhibition weeds have brought the change of agricultural production mode and the leap of agricultural productive force, have been widely used at present in the productions such as cereal crops, economic crops, nursery, flowers, vegetables.China is since 1978 introduce, and the plastic mulching area progressively enlarged, and had reached 95.9 ten thousand t by 2005, uses area and reaches 1,353 ten thousand hm2, is the country of plastic film mulching cultivation area maximum in the world.But, since China at present membrane material with polyethylene (PE) and polyvinyl chloride (PVC), have molecular weight and be difficult to degraded greatly, under field conditions (factors), and a large amount of ground film thicknesses that use are mainly below 0.012mm, and low, the easy fragmentation of this ground film-strength, removal process reclaimed because of time-consuming being difficult to, residual increasing year by year in the soil, thereby destroyed soil structure, reduce soil permeability, and cause serious " white pollution ", and consume a large amount of non-renewable organic chemical industry's resources.And utilize paper mulch film that vegetable fiber is made into when inheriting the plastic film advantage, have the irreplaceable effect of plastic film again.

It is 92114514.4 patent of invention " vegetable fibre film product and technology thereof " that CN1088225 discloses application number, by cellulose extract, push, pulverize, fall poly-, sulfonation dissolving, filtration, maturation system viscose glue, spray film, solidify, regeneration, desulfurization, bleaching, plastify, roll, dry, apply and be made into film.It is 95109885.3 patent of invention " a kind of agricultural mulching film paper and manufacture method thereof " that CN1124085 discloses application number, be to be that raw material is copied and made paper with the vegetable fiber, with the vegetable and animals oils is waterproof, crease-resistant, printing opacity film forming matter, this paper film has insulation, water conservation, airtight, fluid-tight characteristics, is applicable to that low temp area uses.It is that 95118161.0 patent of invention " utilizes bagasse and straw pulp to prepare regenerative cellulose waterproof film " that CN1149594 discloses application number, prepare regenerated cellulose film by cuprammonium process and use the low molecular weight polyurethane of degradability and unsaturated polyester (UP) compo in the film two sided coatings after plasticising, drying again, curing cross-linked obtains waterproof membrane.It is 98121613.7 patent of invention " a kind of farm plant fiber mulch and manufacture method thereof " that CN1217351 discloses application number, the mulch film paper substrate is made of the natural plant fiber, cover biological degradation voluntarily in 40-50 days, manufacturing process adopts traditional paper technology.It is 01127449.2 patent of invention " a kind of method of producing paper mulch of improving the soil " that CN1339553 discloses application number, spraying maifanite powder in the middle of two-layer wood or straw pulp cellulose body paper, synthetic through squeezing then, the press polish punching is cut into the paper mulch film of improving the soil.It is 200610046262.7 patent of invention " preparation method of composite fertilizer, medicine type paper mulch film " that CN1837465 discloses application number, and adopting the protophyte fiber is raw material, adopts existing paper making equipment.

But the method for existing making paper mulch film more or less relates to non-renewable resource or has mass defect or complex treatment process, the phenomenon that cost is higher.Take into full account raw material sources economy, environmental protection and recyclability, to reduce production costs be that the paper mulch film is applied top-priority problem.

Summary of the invention

At the defective that exists in the prior art, the invention provides the comparatively production method of the ripe multi-functional organic environmental protection thin slice mulch film of thick slurry method of technology, make mulch film have desired mechanical strength, printing opacity, breathe freely, be incubated, preserve soil moisture or other special efficacies (as adding disinfection sanitizer, extra-nutrition element, release and release control fertilizer etc.), the paper mulch film advantage that the present invention makes is its economic environmental protection characteristic, its raw material sources are abundant, cheapness, biodegradability, improve the soil, characteristics such as time and labour saving.

Realization of the present invention realizes by following technical scheme:

A kind of preparation method of the novel multi-functional organic environmental protection thin slice mulch film of thick slurry method is characterised in that its machining process is:

A, with stem, the stalk of discarded crops, broken end, raw material stoving such as leaf are standby to moisture 12% ± 1%;

B, with sifted select more than 10 millimeters foreign material and less than 300 microns fine powder, the latter directly is sent to material-storing box; 300 microns～10 millimeters material is delivered in the metal separator, to remove metal sundries, delivers to cracker again and is crushed to below 300 microns, delivers in the material-storing box standby again after screening;

Fine powder in c, the material-storing box and adhesive CMC, chemical fertilizer, agrochemical, calculate by 12% ± 1% fine powder weight, add adhesive CMC:0.01～0.1%, chemical fertilizer: 0.1～10%, insecticide: 0.001～0.1%, evenly mix and send in the slurry mixing arrangement, stirring under heating condition is mixed into the slurry that water content is 60%-80%, and this slurry is delivered to building mortion;

D, the thick slurry of the fine powder after the above-mentioned shaping is layered on the ring stainless steel band of a running continuously, equably, forms wet lamella; And, make the steel band heating, thereby thin slice is dried at heater of steel band underneath;

E, the thin slice of oven dry is peeled off wraparound from steel band and made mulch film.

Usefulness of the present invention:

Process equipment of the present invention can select for use or imitated " thick slurry method reconstituted tobacoo unit " in the ring stainless steel band and steel band under the conventional equipment part of heater, can acquire or simplify according to actual conditions.But concrete working process parameter also can be because of raw material condition be different, and to make the best use of everything, composition evenly is a principle.Simultaneously can be in process with disinfection sanitizer, " additive " that agrochemical, soil conditioner need as product design adds in the thin slice mulch film and goes, when using, the thin slice mulch film can improve the soil again, control fertilizer etc., it is recycling that plant or crop waste raw material are obtained, not only economy but also environmental protection.

Embodiment

A kind of preparation method of the novel multi-functional organic environmental protection thin slice mulch film of thick slurry method, its machining process is:

A, with discarded plant or stem, the stalk of crops, broken end, raw material stoving such as leaf are standby to moisture 12% ± 1%;

B, with sifted select more than 10 millimeters foreign material and less than 300 microns fine powder, the latter directly is sent to material-storing box; Deliver in the metal separator greater than 300 microns～10 millimeters material,, deliver to cracker again and be crushed to below 300 microns, after screening, deliver in the material-storing box standby again to remove metal sundries;

Tobacco powder in c, the material-storing box and adhesive CMC, chemical fertilizer, agrochemical (calculate by 12% ± 1% fine powder weight, add adhesive CMC:0.01～0.1%, chemical fertilizer: 0.1～10%, insecticide ": 0.001～0.1%; evenly mix) send in the slurry mixing arrangement; in heating; adding stirs under the water condition is mixed into the slurry that water content is 60%-80%, and this slurry is delivered to building mortion;

D, the cigarette after above-mentioned shaping slurry is layered on the ring stainless steel band of a running continuously, equably, forms wet lamella; And, make the steel band heating, thereby thin slice is dried at heater of steel band underneath;

E, the thin slice of oven dry is peeled off wraparound from steel band and made mulch film.

Claims (1)

1. the preparation method of the novel multi-functional organic environmental protection thin slice mulch film of thick slurry method is characterised in that its machining process is:

A, with stem, the stalk of discarded crops, broken end, raw material stoving such as leaf are standby to moisture 12% ± 1%;

B, with sifted select more than 10 millimeters foreign material and less than 300 microns fine powder, the latter directly is sent to material-storing box; 300 microns～10 millimeters material is delivered in the metal separator, to remove metal sundries, delivers to cracker again and is crushed to below 300 microns, delivers in the material-storing box standby again after screening;

Fine powder in c, the material-storing box and adhesive CMC, chemical fertilizer, agrochemical, calculate by 12% ± 1% fine powder weight, add adhesive CMC:0.01～0.1%, chemical fertilizer: 0.1～10%, insecticide: 0.001～0.1%, evenly mix and send in the slurry mixing arrangement, stirring under heating condition is mixed into the slurry that water content is 60%-80%, and this slurry is delivered to building mortion;

D, the thick slurry of the fine powder after the above-mentioned shaping is layered on the ring stainless steel band of a running continuously, equably, forms wet lamella; And, make the steel band heating, thereby thin slice is dried at heater of steel band underneath;

E, the thin slice of oven dry is peeled off wraparound from steel band and made mulch film.