阅读说明：本技术 一种利用农作物秸秆颗粒吸附畜禽粪尿生产生物钙粉的方法 (Method for producing biological calcium powder by adsorbing livestock and poultry excrement and urine by using crop straw particles ) 是由 朱祥 于 2019-12-02 设计创作，主要内容包括：本发明提供一种利用农作物秸秆颗粒吸附畜禽粪尿生产生物钙粉的方法,包括如下步骤：1)制备混合饲料颗粒：①将农作物秸秆晾晒、干燥,然后粉碎、制粒,得到农作物秸秆颗粒；②将所述农作物秸秆颗粒作为垫料,去吸附畜禽粪尿,并控制所述垫料的湿度在50%以下,得到预混料,将所述预混料经过搅拌、晾晒后,制粒,得到混合饲料颗粒；2)饲喂苹果螺：采用步骤1)制得的混合饲料颗粒饲喂苹果螺；3)肉壳分离：①待所述苹果螺生长成熟,收获成年苹果螺；②将获得的所述成年苹果螺经水煮熟化后,进行肉壳分离,得到螺壳和螺肉；4)粉碎：将所述螺壳干燥、粉碎,得到生物钙粉。本发明的方法能够将农作物秸秆和畜禽粪尿变废为宝。(The invention provides a method for producing biological calcium powder by adsorbing livestock and poultry excrement and urine by utilizing crop straw particles, which comprises the following steps of 1) preparing mixed feed particles, ① airing and drying crop straws, then crushing and granulating to obtain crop straw particles, ② using the crop straw particles as packing materials to adsorb the livestock and poultry excrement and urine, controlling the humidity of the packing materials to be below 50% to obtain premix, stirring and airing the premix, and granulating to obtain mixed feed particles, 2) feeding apple snails, namely feeding the apple snails by using the mixed feed particles prepared in the step 1), 3) separating meat and shells, ① till the apple snails grow mature, harvesting adult apple snails, ② boiling and curing the obtained adult apple snails in water, and then separating the meat and shells to obtain spiral shells and spiral meat, and 4) crushing, drying and crushing the spiral shells to obtain the biological calcium powder.)

1. A method for producing biological calcium powder by adsorbing livestock and poultry excrement and urine by utilizing crop straw particles is characterized by comprising the following steps:

1) preparing mixed feed particles:

① drying the crop straw, pulverizing, and granulating to obtain crop straw granule;

②, using the crop straw particles as padding to adsorb livestock and poultry manure, controlling the humidity of the padding to be below 50% to obtain premix, stirring and airing the premix, and granulating to obtain mixed feed particles;

2) feeding apple snails: feeding apple snails by adopting the mixed feed particles prepared in the step 1);

3) meat shell separation:

① when the apple snails grow to maturity, harvesting adult apple snails;

② cooking the obtained adult apple snail in water, and separating meat from shell to obtain snail shell and snail meat;

4) crushing: and drying and crushing the spiral shell to obtain the biological calcium powder.

2. The method as claimed in claim 1, wherein the feeding process controls the temperature of water at 20-25 ℃ and the pH value of water at 7.2-7.8 in step 2).

3. The method of claim 1, further comprising the steps of: adding nitrobacteria in the process of feeding the apple snails.

4. The method of claim 1, wherein the crop straw comprises: wheat straw, corn straw, rice straw.

5. The method of claim 1, wherein the livestock manure comprises manure and urine of the same livestock.

6. The method according to any of claims 1-5, further comprising the steps of: and drying and crushing the snail meat to obtain snail meat powder.

7. The method of claim 6, further comprising the steps of: and (3) airing and crushing the metabolic products of the apple snails, and mixing the crushed products with soil to prepare the nutrient soil.

8. The method of any one of claims 7, wherein the nutrient soil comprises 75-85% by weight of said soil and 15-25% by weight of said metabolic products of apple snails.

9. The method of claim 4, wherein the crop straw pellets comprise, in weight percent: 30-40% of wheat straw particles, 30-40% of corn straw particles and 30-40% of rice straw particles.

Technical Field

The invention relates to a resource utilization method of crop straws, in particular to a method for producing biological calcium powder by adsorbing livestock and poultry excrement and urine by using crop straw particles.

Background

Agricultural wastes are a general term for wastes discharged in agricultural production, agricultural product processing, livestock and poultry breeding industry and rural residents.

In recent years, crop straws become a new source of pollution in rural areas. According to incomplete statistics, the Chinese as a big agricultural country can produce more than 7 hundred million tons of straws every year, and becomes 'waste' which is not used much but needs to be disposed.

The traditional treatment method generally adopts incineration treatment, harvesting and stacking or landfill treatment, and the incineration treatment can generate a large amount of dense smoke which is forbidden at present; the stacking treatment occupies a large area, is difficult to store, and easily brings potential safety hazards when the weather is dry; the landfill treatment causes resource waste and the like.

In addition, the feces and urine of livestock and poultry produced in livestock and poultry breeding industry also become a big problem of environmental pollution at present.

With the further development of society, agricultural waste treatment has become a focus of attention in recent years. How to reasonably treat the agricultural wastes and utilize the residual value of the agricultural wastes to reduce the environmental pollution becomes a problem which needs to be solved urgently.

Disclosure of Invention

The invention aims to provide a method for producing biological calcium powder by adsorbing livestock and poultry excrement and urine by utilizing crop straw particles, so that the crop straw and the livestock and poultry excrement and urine are changed into valuable substances.

The technical scheme adopted by the invention is as follows:

the invention provides a method for producing biological calcium powder by adsorbing livestock and poultry excrement and urine by using crop straw particles, which comprises the following steps:

1) preparing mixed feed particles:

① drying the crop straw, pulverizing, and granulating to obtain crop straw granule;

②, using the crop straw particles as padding to adsorb livestock and poultry manure, controlling the humidity of the padding to be below 50% to obtain premix, stirring and airing the premix, and granulating to obtain mixed feed particles;

2) feeding apple snails: feeding apple snails by adopting the mixed feed particles prepared in the step 1);

3) meat shell separation:

① when the apple snails are mature, harvesting adult apple snails;

② cooking mature apple snail, and separating meat from shell to obtain snail shell and snail meat;

4) crushing: and drying and crushing the spiral shell to obtain the biological calcium powder.

Further, in the step 2), the feeding process controls the water temperature to be 20-25 ℃, and controls the pH value of the water to be 7.2-7.8.

Further, the method also comprises the following steps: in the process of feeding the apple snails, a proper amount of nitrobacteria needs to be added.

Further, the crop straw comprises: wheat straw, corn straw, rice straw.

Further, the livestock and poultry manure and urine comprise manure and urine of the same livestock and poultry.

The invention preferably adopts the excrement and urine of the same livestock and poultry, and optionally, the livestock and poultry excrement and urine comprises 45-55% of rabbit excrement and 45-55% of rabbit urine by weight ratio, or the livestock and poultry excrement and urine comprises 45-55% of cow excrement and 45-55% of cow urine by weight ratio.

Further, the method also comprises the following steps: and drying and crushing the snail meat to obtain the snail meat powder.

Further, the method also comprises the following steps: and (3) airing and crushing the metabolic products of the apple snails, and mixing the crushed products with soil to prepare the nutrient soil.

Furthermore, in the nutrient soil, the soil accounts for 75-85% by weight, and the metabolic products of the apple snails account for 15-25% by weight.

Further, the crop straw particles comprise, by weight: 30-40% of wheat straw particles, 30-40% of corn straw particles and 30-40% of rice straw particles.

The invention has the beneficial effects that:

1. the invention provides a method for producing biological calcium powder by adsorbing livestock and poultry manure with crop straw particles, which changes crop straw and livestock and poultry manure into valuable.

2. According to the embodiment of the invention, the crop straw particles are used as the packing materials to adsorb livestock and poultry excrement and urine, so that pathogenic bacteria and the like in the livestock and poultry excrement and urine can be killed, and the research of the inventor finds that the mixed feed particles formed by the crop straw particles and the livestock and poultry excrement and urine can meet the dietary requirements of apple snails and can enhance the calcium content of the snail shells, so that the calcium content of the mature apple snail shells is extremely high when the apple snails are fed by the mixed feed particles, the snail shells are dried and crushed, and the calcium content of the finally obtained biological calcium powder reaches more than 30%.

3. The livestock and poultry manure is adopted to comprise the manure and urine of the same livestock and poultry, so that the pathogenic bacteria in the livestock and poultry manure can be completely killed, the mixed feed particles can be purified, the appetite of the apple snails can be improved, and the content of the biological calcium powder and the protein content of the snail meat are increased.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only examples of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a schematic flow chart of a method for producing biological calcium powder by adsorbing livestock and poultry manure with crop straw particles according to a first embodiment of the present invention;

FIG. 2 is a schematic flow chart of a method for producing bio-calcium powder by adsorbing livestock and poultry manure with crop straw particles according to a second embodiment of the present invention;

FIG. 3 is a schematic flow chart of a method for producing bio-calcium powder by adsorbing livestock and poultry manure with crop straw particles according to a third embodiment of the present invention;

fig. 4 is a schematic flow chart of a method for producing biological calcium powder by adsorbing livestock and poultry manure with crop straw particles according to a fourth embodiment of the invention.

Detailed Description

The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described in conjunction with the embodiments below, so that the objects, the features, and the effects of the present invention can be fully understood. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention.

The first embodiment of the invention provides a method for producing biological calcium powder by adsorbing livestock and poultry excrement and urine by using crop straw particles, which comprises the following steps:

1) preparing mixed feed particles:

① air-drying and drying the crop straws, pulverizing the three kinds of straws into strips with a length of 1-2 cm by a hammer mill, pulverizing the strips to obtain straw powder, and granulating by a granulator to obtain crop straw particles;

② taking crop straw particles as padding, adsorbing livestock and poultry manure with the padding, controlling the humidity of the padding to be below 50% to obtain premix, stirring and airing the premix, and granulating to obtain mixed feed particles;

2) feeding apple snails: feeding apple snails by adopting the mixed feed particles prepared in the step 1);

3) meat shell separation:

① when the apple snails grow to maturity, harvesting the adult apple snails;

② boiling adult apple snail in water, and separating meat from shell to obtain shell and meat;

4) crushing: drying and crushing the snail shells to obtain the biological calcium powder.

In one embodiment, in step 2), the feeding process controls the temperature of water at 20-25 ℃ and the pH value of water at 7.2-7.8.

In one embodiment, the method further comprises the following steps: in the apple snail feeding process, a proper amount of nitrobacteria needs to be added. Optionally, the nitrifying bacteria account for 1-2% by weight of the total mixed feed pellet.

In one particular embodiment, the crop straw comprises: wheat straw, corn straw, rice straw.

In one embodiment, the livestock manure comprises manure and urine of the same livestock.

The invention preferably adopts the excrement and urine of the same livestock and poultry, and optionally, the livestock and poultry excrement and urine comprises 45-55% of rabbit excrement and 45-55% of rabbit urine by weight ratio, or the livestock and poultry excrement and urine comprises 45-55% of cow excrement and 45-55% of cow urine by weight ratio.

A second embodiment of the present invention is the first embodiment, and further includes the steps of: and drying and crushing the snail meat to obtain the snail meat powder.

A third embodiment of the present invention is the first embodiment, and further includes the steps of: and (3) airing and crushing the metabolic products of the apple snails, and mixing the crushed products with soil to prepare the nutrient soil.

A fourth embodiment of the present invention is the second embodiment, and further includes the steps of: and (3) airing and crushing the metabolic products of the apple snails, and mixing the crushed products with soil to prepare the nutrient soil.

In a specific embodiment, the nutrient soil comprises 75-85% of soil and 15-25% of metabolic products of apple snails by weight percentage.

In a particular embodiment, the crop straw particles comprise, in weight percent: 30-40% of wheat straw particles, 30-40% of corn straw particles and 30-40% of rice straw particles.

The following are specific examples.