CN104130034A - Method for producing fiber board and organic fertilizer by utilizing garden waste - Google Patents
Method for producing fiber board and organic fertilizer by utilizing garden waste Download PDFInfo
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- CN104130034A CN104130034A CN201410275517.1A CN201410275517A CN104130034A CN 104130034 A CN104130034 A CN 104130034A CN 201410275517 A CN201410275517 A CN 201410275517A CN 104130034 A CN104130034 A CN 104130034A
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Abstract
The invention discloses a method for producing a fiber board and an organic fertilizer by utilizing garden waste. The method comprises the following steps: (1) crushing; (2) softening treatment: after crushing, adding mycetes, and carrying out natural fermentation treatment, to obtain a softened material; (3) solid-liquid separation: squeezing out water of the softened material, achieving the solid-liquid separation, and thus obtaining a concentrated liquid and a solid; (4) carrying out evaporation and concentration on the concentrated liquid, then carrying out slurry-spraying granulation, drying, and thus obtaining the organic fertilizer; (5) carrying out pulp grinding treatment on the solid to obtain a pulp; and (6) concentrating the pulp, then squeezing and dewatering to obtain a paper pulp, and drying to obtain the fiber board. The garden waste is subjected to crushing, softening and solid-liquid separation treatment to obtain the concentrated liquid and the solid, the solid is used for preparing the fiber board, the concentrated liquid is used for preparing the organic fertilizer because of containing a large amount of nitrogen, potassium, organic matters and other nutritional ingredients, and thus cleaning comprehensive utilization of the garden waste is achieved.
Description
Technical field
The present invention relates to utilize the method for city trees and shrubs waste producd fibers plate and water soluble organic fertilizer, belong to recycling economy, environment-friendly engineering technical field.
Background technology
At present, along with the development of Urbanization in China, afforestation is more and more subject to people's attention in aspect effects such as improving city environmental quality, alleviating urban heat island effect, maintenance balance of city ecosystem, and is developed rapidly; But the afforestation wastes such as consequent tree limb, deadwood, fallen leaves, grass bits and other greening pruner things are also sharply increasing, and the resource utilization recycling gordian technique research of afforestation waste and industrialization become the extremely urgent thing that need to solve.
Current, the processing mode of garden waste is mainly compost, landfill and burning.Systems in Certain Developed Countries early starts garden waste to carry out compost treatment, for example, in Japan, takes multiple compost method to process greening waste.On the U.S., Canada and other places, decayed tooth is to take ground to lay Recycle design to make waste natural degradation.
In order to promote the recycling of afforestation waste, in the suggestion > > of the < < that China Ministry of Construction puts into effect for 2007 about construction resource-saving city's afforestation, point out " encouraging branch, the minimizing of by modes such as compost, Developing Biomass raw material, organic nutritive medium and deep processings, processing pruning to take garbage loading embeading storage capacity, realize recycle ".But current existing garden waste composting technology is produced fertilizer, consumption is large, fertilizer efficiency is slow, be worth not high, productivity effect is undesirable, can not really utilize cellulosic compositions a large amount of in garden waste, cannot scale operation and realize recycle.
Summary of the invention
For above-mentioned prior art, the invention provides a kind of method of utilizing city trees and shrubs waste producd fibers plate and water soluble organic fertilizer, method of the present invention, realized the effective utilization to garden waste, can produce higher economic benefit, save the forest reserves, realize resources circulation.
The present invention is achieved by the following technical solutions:
A method of utilizing garden waste producd fibers plate and machine fertilizer, step is as follows:
(1) pulverize: garden waste is pulverized, be crushed to granularity at 1～20mm;
Described garden waste, refers to tree limb, deadwood, fallen leaves, grass bits and other greening pruner things, is mainly wooden and herbaceous stem;
(2) softening processing: after pulverizing, adjust water content to 80～90% (mass percent), regulate pH value to 7.5～8.0 (with ammoniacal liquor, potassium hydroxide solution adjustment), add mould (purchased from Chinese microorganism strain net, bacterium numbering CCREM SDMCC140101), bacterial classification add-on is 1%～3% (mass percent) of raw material total amount, at 60～65 ℃, 48～90h (preferably 68～72h) is processed in spontaneous fermentation, must soften rear material (in fermenting process, microorganism is decomposed into the useful compositions such as the carbohydrate in garden waste, mineral substance the composition of water dissolvable);
(3) solid-liquid separation: above-mentioned softening rear material, be transported to powerful squeezing machine, squeeze out moisture, realize solid-liquid separation, obtain dope and solid substance, wherein, in solid substance, moisture content is at 20～30% (mass percents);
(4) to dope carry out evaporation concentration to moisture content at 45～50% (mass percents), then High Temperature Sterilization (100～120 ℃, 10min), then carry out spray granulating, oven dry, obtain fertilizer;
The concrete mode of described spray granulating, oven dry can be: after dope is concentrated, by stream-liquid two-phase flow spray gun pressurizing atomizing, become small droplets, spray in rotation spray granulation drier cylinder, in drum dryer under the effect of elevate a turnable ladder formula flight, material and high-temperature gas carry out heat exchange and evaporate moisture, through layer by layer, be coated with the dry particle that causes, dried particle, through screening, cooling, screening, obtains fertilizer;
(5) solid substance is carried out to defibrination processing, specific as follows: raw material steam heating is to 100～110 ℃ of temperature, and then mill defibrination 1～5min, obtains slurry;
(6) regulate in slurry solid concentration at 1～3% (mass percent) (adding the mode of water to regulate), then by gravity decker, concentrate, be concentrated to solid concentration at 8～11% (mass percents), and then carry out press dewatering by extracting water extracter, starch dense 75～85% (mass percents), obtain paper pulp, drying machine drying, obtains fiberboard.
The present invention to garden waste pulverize, soften, after solid-liquid separation processes, obtain dope and solid substance, solid substance is for the preparation of fiberboard, in dope because containing the nutritive ingredients such as a large amount of nitrogen, potassium, organic matter, for the preparation of fertilizer, realized the comprehensive utilization that cleans to garden garbage.
The present invention has the following advantages:
1, the present invention utilizes the pretreated mode of biological chemistry, makes the compositions such as potassium in garden waste, nitrogen, protein, Soluble Organic Matter soluble in water, realizes the separation of nutritive substance, the solubility fertilizer that production fertilizer efficiency is fast, fertilizer is high.
2, in garden waste except the material of solubility, other major parts are the compositions such as cellulosic, after pre-treatment separation, the compositions such as cellulosic that obtain are as the main raw material of fiberboard, through follow-up cleaning, dewater, extract, the operation producd fibers plate such as oven dry, greatly save nervous timber resources.
3, the present invention has really realized the comprehensive utilization of garden waste, change the difficult problems such as the contaminate environment such as existing garden waste landfill, burning and waste resource, also solved the technical barriers such as existing garden waste composting technology product is single, benefit low, poor product quality simultaneously.
Embodiment
Below in conjunction with embodiment, the present invention is further illustrated, should be noted that following explanation is only in order to explain the present invention, does not limit its content.
Embodiment 1 utilizes garden waste producd fibers plate and machine fertilizer
Step is as follows:
(1) pulverize: garden waste is pulverized, be crushed to granularity at 1～20mm;
Described garden waste, is comprised of tree limb, deadwood, fallen leaves, grass bits, is mainly wooden and herbaceous stem;
(2) softening processing: after pulverizing, adjust water content to 85%, regulate pH value to 8.0 (adjusting with potassium hydroxide solution), add mould (purchased from Chinese microorganism strain net, bacterium numbering CCREMSDMCC140101), bacterial classification add-on is 2% of raw material total amount, and at 60～65 ℃, 70h is processed in spontaneous fermentation, material after must softening;
(3) solid-liquid separation: above-mentioned softening rear material, be transported to powerful squeezing machine, squeeze out moisture, realize solid-liquid separation, obtain dope and solid substance, wherein, in solid substance, moisture content is 25%;
(4) to dope carry out evaporation concentration to moisture content 50%, then High Temperature Sterilization (120 ℃, 10min), then carry out spray granulating, oven dry, obtain fertilizer;
The concrete mode of described spray granulating, oven dry is: after dope is concentrated, by stream-liquid two-phase flow spray gun pressurizing atomizing, become small droplets, spray in rotation spray granulation drier cylinder, in drum dryer under the effect of elevate a turnable ladder formula flight, material and high-temperature gas carry out heat exchange and evaporate moisture, through layer by layer, be coated with the dry particle that causes, dried particle, through screening, cooling, screening, obtains fertilizer;
(5) solid substance is carried out to defibrination processing, specific as follows: raw material steam heating is to 110 ℃ of temperature, and then mill defibrination 3min, obtains slurry;
(6) regulate solid concentration in slurry 2%, then by gravity decker, to concentrate, be concentrated to solid concentration 10%, and then carry out press dewatering by extracting water extracter, starch densely 80%, obtain paper pulp, drying machine drying, obtains fiberboard.
Embodiment 2 utilizes garden waste producd fibers plate and machine fertilizer
Step is as follows:
(1) pulverize: garden waste is pulverized, be crushed to granularity at 1～20mm;
Described garden waste, is comprised of tree limb, deadwood, fallen leaves, grass bits, is mainly wooden and herbaceous stem;
(2) softening processing: after pulverizing, adjust water content to 80%, regulate pH value to 7.5 (adjusting with potassium hydroxide solution), add mould (purchased from Chinese microorganism strain net, bacterium numbering CCREM SDMCC 140101), bacterial classification add-on is 1% of raw material total amount, and at 60～65 ℃, 48h is processed in spontaneous fermentation, material after must softening;
(3) solid-liquid separation: above-mentioned softening rear material, be transported to powerful squeezing machine, squeeze out moisture, realize solid-liquid separation, obtain dope and solid substance, wherein, in solid substance, moisture content is 30%;
(4) to dope carry out evaporation concentration to moisture content 45%, then High Temperature Sterilization (120 ℃, 10min), then carry out spray granulating, oven dry, obtain fertilizer;
The concrete mode of described spray granulating, oven dry is: after dope is concentrated, by stream-liquid two-phase flow spray gun pressurizing atomizing, become small droplets, spray in rotation spray granulation drier cylinder, in drum dryer under the effect of elevate a turnable ladder formula flight, material and high-temperature gas carry out heat exchange and evaporate moisture, through layer by layer, be coated with the dry particle that causes, dried particle, through screening, cooling, screening, obtains fertilizer;
(5) solid substance is carried out to defibrination processing, specific as follows: raw material steam heating is to 105 ℃ of temperature, and then mill defibrination 5min, obtains slurry;
(6) regulate solid concentration in slurry 3%, then by gravity decker, to concentrate, be concentrated to solid concentration 11%, and then carry out press dewatering by extracting water extracter, starch densely 85%, obtain paper pulp, drying machine drying, obtains fiberboard.
Embodiment 3 utilizes garden waste producd fibers plate and machine fertilizer
Step is as follows:
(1) pulverize: garden waste is pulverized, be crushed to granularity at 1～20mm;
Described garden waste, is comprised of tree limb, deadwood, fallen leaves, grass bits, is mainly wooden and herbaceous stem;
(2) softening processing: after pulverizing, adjust water content to 90%, regulate pH value to 8.0 (adjusting with potassium hydroxide solution), add mould (purchased from Chinese microorganism strain net, bacterium numbering CCREM SDMCC 140101), bacterial classification add-on is 3% of raw material total amount, and at 60～65 ℃, 90h is processed in spontaneous fermentation, material after must softening;
(3) solid-liquid separation: above-mentioned softening rear material, be transported to powerful squeezing machine, squeeze out moisture, realize solid-liquid separation, obtain dope and solid substance, wherein, in solid substance, moisture content is 20%;
(4) to dope carry out evaporation concentration to moisture content 50%, then High Temperature Sterilization (120 ℃, 10min), then carry out spray granulating, oven dry, obtain fertilizer;
The concrete mode of described spray granulating, oven dry is: after dope is concentrated, by stream-liquid two-phase flow spray gun pressurizing atomizing, become small droplets, spray in rotation spray granulation drier cylinder, in drum dryer under the effect of elevate a turnable ladder formula flight, material and high-temperature gas carry out heat exchange and evaporate moisture, through layer by layer, be coated with the dry particle that causes, dried particle, through screening, cooling, screening, obtains fertilizer;
(5) solid substance is carried out to defibrination processing, specific as follows: raw material steam heating is to 110 ℃ of temperature, and then mill defibrination 5min, obtains slurry;
(6) regulate solid concentration in slurry 1%, then by gravity decker, to concentrate, be concentrated to solid concentration 8%, and then carry out press dewatering by extracting water extracter, starch densely 75%, obtain paper pulp, drying machine drying, obtains fiberboard.
Claims (6)
1. a method of utilizing garden waste producd fibers plate and machine fertilizer, is characterized in that: step is as follows:
(1) pulverize: garden waste is pulverized, be crushed to granularity at 1～20mm;
Described garden waste, is selected from tree limb, deadwood, fallen leaves, grass bits and greening pruner thing;
(2) softening processing: after pulverizing, adjust water content to 80～90% and regulate, pH value to 7.5～8.0, add mould, and bacterial classification add-on is 1%～3% of raw material total amount, and 48～90h is processed in spontaneous fermentation at 60～65 ℃, material after must softening;
(3) solid-liquid separation: above-mentioned softening rear material, squeeze out moisture, realize solid-liquid separation, obtain dope and solid substance, wherein, in solid substance, moisture content is 20～30%;
(4) to dope carry out evaporation concentration to moisture content 45～50%, High Temperature Sterilization then, then carry out spray granulating, oven dry, obtains fertilizer;
(5) solid substance is carried out to defibrination processing, specific as follows: heating raw materials is to 100～110 ℃ of temperature, and then mill defibrination 1～5min, obtains slurry;
(6) regulate solid concentration in slurry 1～3%, then to concentrate, be concentrated to solid concentration 8～11%, then carry out press dewatering, starch densely 75～85%, obtain paper pulp, dry, obtain fiberboard.
2. the method for utilizing garden waste producd fibers plate and machine fertilizer according to claim 1, is characterized in that: in described step (2), adjust ammoniacal liquor or potassium hydroxide solution adjustment for pH.
3. the method for utilizing garden waste producd fibers plate and machine fertilizer according to claim 1, is characterized in that: in described step (2), mould is purchased from Chinese microorganism strain net, bacterium numbering CCREM SDMCC 140101.
4. the method for utilizing garden waste producd fibers plate and machine fertilizer according to claim 1, is characterized in that: in described step (2), fermentation time is 68～72h.
5. the method for utilizing garden waste producd fibers plate and machine fertilizer according to claim 1, is characterized in that: in described step (4), the condition of High Temperature Sterilization is: 100～120 ℃, and 10min.
6. the method for utilizing garden waste producd fibers plate and machine fertilizer according to claim 1, it is characterized in that: in described step (4), the concrete mode of described spray granulating, oven dry is: after dope is concentrated, by stream-liquid two-phase flow spray gun pressurizing atomizing, become small droplets, spray in rotation spray granulation drier cylinder, in drum dryer under the effect of elevate a turnable ladder formula flight, material and high-temperature gas carry out heat exchange and evaporate moisture, through layer by layer, be coated with the dry particle that causes, dried particle, through screening, cooling, screening, obtains fertilizer.
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Cited By (10)
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| CN108559572A (en) * | 2018-06-19 | 2018-09-21 | 盐城市顺天铸造有限公司 | A kind of solid fuel and preparation method thereof based on agricultural crop straw |
| CN108689635A (en) * | 2018-06-19 | 2018-10-23 | 合肥职业技术学院 | A kind of environmental-friendly walling material and preparation method thereof with mould proof water-proof function |
| CN108706948A (en) * | 2018-06-06 | 2018-10-26 | 河北地质大学 | A kind of construction material and preparation method thereof for greening roof |
| CN108894049A (en) * | 2018-08-17 | 2018-11-27 | 枣庄市天龙纸业有限公司 | A kind of papermaking process of on-line coater water-transfer printing paper base stock body paper |
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| CN108706948A (en) * | 2018-06-06 | 2018-10-26 | 河北地质大学 | A kind of construction material and preparation method thereof for greening roof |
| CN109054545A (en) * | 2018-06-06 | 2018-12-21 | 河北地质大学 | A kind of Green environmental-protection building material based on gangue and flyash |
| CN108559572A (en) * | 2018-06-19 | 2018-09-21 | 盐城市顺天铸造有限公司 | A kind of solid fuel and preparation method thereof based on agricultural crop straw |
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| CN109049324A (en) * | 2018-08-03 | 2018-12-21 | 徽都建设有限公司 | A kind of manufacture craft of building block unit |
| CN108951266A (en) * | 2018-08-14 | 2018-12-07 | 枣庄市天龙纸业有限公司 | A kind of environmental protective composite paper plate of antimildew and antibacterial and preparation method thereof |
| CN108894049A (en) * | 2018-08-17 | 2018-11-27 | 枣庄市天龙纸业有限公司 | A kind of papermaking process of on-line coater water-transfer printing paper base stock body paper |
| CN108951271A (en) * | 2018-08-17 | 2018-12-07 | 枣庄市天龙纸业有限公司 | A kind of novel environment friendly facing paper and preparation method thereof |
| CN109440536A (en) * | 2018-11-07 | 2019-03-08 | 合肥凯大新型材料科技有限公司 | A kind of wallpaper with adsorption function |
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Application publication date: 20141105 |