Inorganic fiber matrix for sand control and method of making

Abstract

The present application relates to the technical field of inorganic fiber matrix, and discloses a kind of inorganic fiber matrix for sand control and preparation method, comprising the following steps: S1, preparation inorganic nutrient solution, water, ammonium nitrate, potassium dihydrogen phosphate, potassium sulfate and magnesium sulfate are mixed uniformly, obtain nutrient solution;S2, preparation medicament, antagonistic bacteria, bacillus subtilis, trichoderma harzianum and gram actinomycetes group are mixed, after mixing, the nutrient solution obtained in S1 step is added, and continue to mix until uniform.The present application is formed in the form of large pore by inorganic fiber matrix material as a whole, root system can pass through large pore and come out from the bottom and four of inorganic fiber matrix, and then fully wrap inorganic fiber matrix, using the high water absorption of inorganic fiber matrix, can swell and absorb water when watering, achieve the characteristics of good root water absorption effect, when plant growth, can continuously absorb the moisture of inorganic fiber pore, achieve the effect of good water retention, and then improve the survival rate of plant.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of inorganic fiber matrix, more particularly, the present application relates to a kind of inorganic fiber matrix for sand control and preparation method. BACKGROUND

[0002] Inorganic fiber matrix for sand control is a common method, usually refers to using inorganic fiber matrix to plant plants to improve the survival rate of plants, Haloxylon ammodendron and Robinia have strong drought and salt tolerance, suitable for growing in dry and poor soil. And as herbaceous plants, Haloxylon ammodendron and Robinia have a relatively developed root system, which helps to fix sand dunes and reduce desertification.

[0003] Therefore, it is necessary to propose an inorganic fiber matrix for planting grasses such as Haloxylon ammodendron and Robinia. The existing inorganic fiber matrix is usually directly inserted into the inorganic fiber matrix for use when Haloxylon ammodendron and Robinia are planted. However, the roots of grasses are developed, and the direct insertion form may cause the roots of grasses to overflow the insertion hole and not be able to directly wrap the inorganic fiber matrix during growth, thereby affecting the planting effect and reducing the survival rate. SUMMARY

[0004] In order to overcome the shortcomings of the prior art, the present application provides a preparation method of an inorganic fiber matrix for sand control, comprising the following steps:

[0005] S1, preparing an inorganic nutrient solution, mixing water, ammonium nitrate, potassium dihydrogen phosphate, potassium sulfate and magnesium sulfate uniformly to obtain a nutrient solution;

[0006] S2, preparing a medicament, mixing antagonistic bacteria, Bacillus subtilis, Trichoderma harzianum and gram-positive actinomycetes, adding the nutrient solution obtained in step S1 after mixing, and continuing to mix until uniform;

[0007] S3, preparing bentonite particles, selecting bentonite, and granulating the bentonite to obtain bentonite particles;

[0008] S4, preparing vermiculite, crushing the vermiculite into granular form and drying, and then crushing the dried vermiculite to obtain dried vermiculite;

[0009] S5, processing fiber material, treating glass fiber to process into a fiber mesh structure with gaps, and the mesh diameter value is less than the diameter value of the bentonite particles, and finally obtaining a fiber mesh;

[0010] S6, lay the fiber web flat, then place bentonite particles, porous ceramic material and vermiculite on the fiber web, then cover the excess fiber web on the bentonite particles, porous ceramic material and vermiculite, then continue to place bentonite particles, porous ceramic material and vermiculite on the fiber web, repeat the above operation until the fiber web is used up, to obtain a base substrate layer;

[0011] S7, sterilize the base substrate layer, then solidify and form;

[0012] S8, the solidified and formed base substrate layer is first soaked in a nutrient solution, then soaked in a medicament, and finally an inorganic fiber substrate is obtained.

[0013] As a preferred technical solution of the present application, the fiber web in S5 is rectangular, and the length value is much greater than the width value, and is stored in a rolled form.

[0014] As a preferred technical solution of the present application, the operation in S6 is operated in a container, and a solution exists in the container. The solution is prepared as follows: graphene oxide and alumina aerogel are added to water, a coupling agent is added after stirring, and the inorganic fiber substrate is soaked in the solution for ten minutes after the fiber web is used up.

[0015] As a preferred technical solution of the present application, the solidification and forming in S7 is solidified by heat treatment, which accelerates the solidification speed.

[0016] As a preferred technical solution of the present application, the base substrate layer in S8 is soaked in the nutrient solution for sixty minutes and in the medicament for ten minutes.

[0017] An inorganic fiber substrate for sand control, comprising a substrate layer and a nutrient layer, the substrate layer is composed of glass fiber, porous ceramic material, bentonite and vermiculite, and the nutrient layer comprises a nutrient solution and a medicament.

[0018] As a preferred technical solution of the present application, the bentonite and vermiculite are in the form of particles in the substrate, and are mixed with each other, the main components of the nutrient solution include nitrogen, phosphorus, potassium and other trace elements, and the medicament includes one or more of antagonistic bacteria, bacillus subtilis and trichoderma harzianum.

[0019] As a preferred technical solution of the present application, the preparation method of the nutrient solution is as follows: ammonium nitrate, potassium dihydrogen phosphate, potassium sulfate and magnesium sulfate are dissolved in water, mixed and stirred uniformly, the pH value is adjusted after ensuring that all compounds are completely dissolved, the pH value is controlled between 5.5-6.5, and then stored to avoid spilling.

[0020] The present application adopts the form of swelling bentonite and vermiculite, wraps the swelling bentonite and vermiculite in the inorganic fiber net, cooperates with the use of porous ceramic material, and the inorganic fiber matrix material is integrally formed in the form of a large pore, when the herbaceous plants are planted, the root system can pass through the large pore and pass out from the bottom and the periphery of the inorganic fiber matrix, and the root system is fixed by the water absorption and expansion of the vermiculite, and then the inorganic fiber matrix is fully wrapped, by using the swelling bentonite in the fiber matrix, the swelling bentonite and the vermiculite have high water absorption, can be expanded and absorbed water when watering, and the root system has good water absorption effect, and at the same time, the plants can continuously absorb the water in the swelling bentonite during the growth of the plants, so that the water retention effect is good, and the survival rate of the plants is improved, and after the plants absorb water, the vermiculite shrinks, and the plant root system can extend out of the shrunk area, so as to better wrap the vermiculite. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the schemes in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0022] The present application provides a preparation method of an inorganic fiber matrix for sand control, comprising the following steps:

[0023] S1, preparing an inorganic nutrient solution, uniformly mixing water, ammonium nitrate, potassium dihydrogen phosphate, potassium sulfate and magnesium sulfate to obtain the nutrient solution;

[0024] S2, preparing a medicament, mixing antagonistic bacteria, bacillus subtilis, trichoderma harzianum and gram actinomycete group, adding the nutrient solution obtained in step S1 after mixing, and continuing to mix until uniform;

[0025] S3, preparing swelling bentonite particles, selecting swelling bentonite, granulating the swelling bentonite to obtain swelling bentonite particles;

[0026] S4, preparing vermiculite, crushing the vermiculite into granular shape and drying, and then crushing the dried vermiculite to obtain dried vermiculite;

[0027] S5, processing fiber material, treating glass fiber to process into a fiber net structure with slits, and the mesh diameter value is less than the diameter value of the swelling bentonite particles, and finally obtaining a fiber net;

[0028] S6, lay the fiber web flat, then place bentonite particles, porous ceramic material and vermiculite on the fiber web, then cover the excess fiber web on the bentonite particles, porous ceramic material and vermiculite, then continue to place bentonite particles, porous ceramic material and vermiculite on the fiber web, repeat the above operation until the fiber web is used up, to obtain a base substrate layer;

[0029] S7, sterilize the base substrate layer, then solidify and form;

[0030] S8, the solidified and formed base substrate layer is first soaked in a nutrient solution, then soaked in a medicament, and finally an inorganic fiber substrate is obtained;

[0031] The bentonite particles and vermiculite are wrapped in the inorganic fiber web in the form of mixing bentonite particles and vermiculite, and the inorganic fiber substrate material is formed in the form of large pores in cooperation with the use of porous ceramic material. When the herbaceous plants are planted, the root system can pass through the large pores from the bottom and the periphery of the inorganic fiber substrate, and then fully wrap the inorganic fiber substrate.

[0032] Preferably, the fiber web in S5 is rectangular, and the length value is much greater than the width value, and is stored in the form of winding.

[0033] The operation in S6 is operated in a container, and a solution exists in the container. The preparation process of the solution is as follows: graphene oxide and alumina aerogel are added to water, coupling agent is added after stirring, and the inorganic fiber substrate is soaked in the solution for ten minutes after the fiber web is used up.

[0034] The solidification in S7 is performed by heat treatment to accelerate the solidification speed.

[0035] The base substrate layer in S8 is soaked in the nutrient solution for sixty minutes and in the medicament for ten minutes.

[0036] An inorganic fiber substrate for sand control, the inorganic fiber substrate comprises a substrate layer and a nutrient layer, the substrate layer is composed of glass fiber, porous ceramic material, bentonite and vermiculite, and the nutrient layer comprises a nutrient solution and a medicament;

[0037] By using bentonite in the fiber substrate, the high water absorption of bentonite can be utilized to swell and absorb water when watering, achieving good root water absorption effect. At the same time, the plant can continuously absorb water in the bentonite during growth, achieving good water retention effect, thereby improving the survival rate of the plant.

[0038] The bentonite and the vermiculite are both in granular form in the matrix and mixed with each other, the main components of the nutrient solution include nitrogen, phosphorus, potassium and other trace elements, and the medicaments include one or more of antagonistic bacteria, bacillus subtilis and trichoderma harzianum;

[0039] By adding the antagonistic bacteria, bacillus subtilis, trichoderma harzianum and gram actinomycetes in the nutrient solution, the plant diseases caused by the pathogenic fungi such as pythium, rhizoctonia solani, fusarium, rhizopus, corynespora, sclerotinia and sclerotinia homoeocarpa can be prevented, a sterile environment is achieved, and the enzymes and antibiotic substances can be secreted to prevent the infection of the root pathogenic fungi.

[0040] The preparation method of the nutrient solution is as follows: ammonium nitrate, potassium dihydrogen phosphate, potassium sulfate and magnesium sulfate are dissolved in water, mixed and stirred uniformly, the pH value is adjusted after ensuring that the various compounds are completely dissolved, the pH value is controlled to be between 5.5 and 6.5, and then the solution is stored after standing to avoid spilling. Example One

[0041] According to the above steps, 50 inorganic fiber substrates are prepared, and haloxylon is planted on each of the 50 inorganic fiber substrates;

[0042] Comparative Example One

[0043] Compared with Example One, bentonite is not used to prepare 50 inorganic fiber substrates, and haloxylon is planted on each of the 50 inorganic fiber substrates;

[0044] Comparative Example Two

[0045] Compared with Example One, bentonite is used to prepare the inorganic fiber substrate, but the bentonite is mixed in the inorganic fiber substrate in the form of powder, and 50 inorganic fiber substrates are prepared; haloxylon is planted on each of the 50 inorganic fiber substrates;

[0046] Comparative Example Three

[0047] Compared with Example One, the bentonite is used to prepare the inorganic fiber substrate in the form of granulation, but the inorganic fiber substrate is not stacked in the form of the fiber net stacking the bentonite granules, the vermiculite and the porous ceramic structure, and 50 inorganic fiber substrates are prepared; haloxylon is planted on each of the 50 inorganic fiber substrates;

[0048] Under the same planting conditions, after thirty days of planting, the number of haloxylon that survives is recorded, and the data is recorded as follows:

[0049] Example One: 32 haloxylons out of 50 survive, and the growth is good;

[0050] Comparative Example One: 17 haloxylons out of 50 survive, and 3 of them have poor growth and are expected to not survive for two months;

[0051] Comparative Example Two: 50 Haloxylon ammodendron were planted, 23 survived, of which 1 was in poor condition and was expected to not survive for more than two months;

[0052] Comparative Example Three: 50 Haloxylon ammodendron were planted, 26 survived, all in good condition;

[0053] The above data were summarized to form the following table:

[0054] Group Survival number Estimated survival number after two months Example 1 32 32 Comparative Example 1 17 14 Comparative Example 2 23 22 Comparative Example 3 26 26

[0055] From the above table, it can be seen that Comparative Example One did not use bentonite to prepare the inorganic fiber substrate, and when Haloxylon ammodendron was planted, the water retention and water absorption effects of bentonite and vermiculite were lacking, and the survival rate was low; Comparative Example Two used bentonite, but the bentonite was in powder form in the inorganic fiber substrate, although it had water retention and water absorption effects, the root system could not wrap the inorganic fiber substrate well, resulting in a slight waste of the water retention and water absorption effects of bentonite; Comparative Example Three used granular bentonite, which could ensure that the root system fully wrapped the inorganic fiber material, and the survival rate reached more than 50%, but the bentonite particles and vermiculite and the porous ceramic structure were not stacked in the form of a fiber mesh, which resulted in a lack of support and separation between the bentonite particles and vermiculite and the porous ceramic structure in the numerical direction, and the gaps between the materials were close to each other, and the voids were not as large as in the examples.

[0056] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0057] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A method of preparing an inorganic fiber matrix for sand control, characterized by: It comprises the following steps: S1, preparing inorganic nutrient solution, mixing water, ammonium nitrate, potassium dihydrogen phosphate, potassium sulfate and magnesium sulfate uniformly to obtain the nutrient solution; S2, preparing the medicine, mixing antagonistic bacteria, bacillus subtilis, trichoderma harzianum and gram actinomycete group, then adding the nutrient solution obtained in step S1 and continuing to mix until uniform; S3, preparing bentonite particles, selecting bentonite, granulating bentonite to obtain bentonite particles; S4, preparing vermiculite, crushing vermiculite into granular shape, drying, and then crushing to obtain dry vermiculite; S5, processing fiber material, treating glass fiber to form a fiber mesh structure with gaps, and the mesh diameter value is less than the diameter value of the bentonite particles, and finally obtaining a fiber mesh; S6, laying the fiber mesh, then placing bentonite particles, porous ceramic material and vermiculite on the fiber mesh, then covering the excess fiber mesh on the bentonite particles, porous ceramic material and vermiculite, then continuing to place bentonite particles, porous ceramic material and vermiculite on the fiber mesh, repeating the above operation until the fiber mesh is used up, obtaining a basic substrate layer, the operation is carried out in a container, and a solution exists in the container, the preparation process of the solution is as follows: adding graphene oxide and alumina aerogel into water, stirring, then adding a coupling agent, after the fiber mesh is used up, immersing the inorganic fiber substrate in the solution and maintaining for ten minutes; S7, sterilizing the basic substrate layer, then solidifying and forming; S8, immersing the solidified and formed basic substrate layer in the nutrient solution first, then immersing it in the medicine, and finally obtaining an inorganic fiber substrate.

2. A method of making an inorganic fiber matrix for sand control according to claim 1, characterized in that: The fiber mesh in S5 is rectangular, and the length value is much greater than the width value, which is stored in the form of winding.

3. A method of making an inorganic fiber matrix for sand control according to claim 1, characterized by: The solidification and forming in S7 is solidified by heat treatment to accelerate the solidification speed.

4. A method of making an inorganic fiber matrix for sand control according to claim 1, characterized by: The immersion time of the basic substrate layer in the nutrient solution in S8 is sixty minutes, and the immersion time in the medicine is ten minutes.

5. An inorganic fibrous matrix for sand control produced by the process of any one of claims 1 to 4, characterized by: The inorganic fiber substrate comprises a substrate layer and a nutrient layer, the substrate layer is composed of glass fiber, porous ceramic material, bentonite and vermiculite, and the nutrient layer comprises nutrient solution and medicine.

6. A desertification remediation inorganic fiber matrix according to claim 5, characterized by: The bentonite and vermiculite exist in the form of particles in the substrate, and are mixed with each other, the main components of the nutrient solution include nitrogen, phosphorus, potassium and other trace elements, and the medicine includes one or more of antagonistic bacteria, bacillus subtilis and trichoderma harzianum.

7. A desertification control inorganic fiber matrix according to claim 5, characterized in that: The preparation method of the nutrient solution is as follows: dissolving ammonium nitrate, potassium dihydrogen phosphate, potassium sulfate and magnesium sulfate in water, mixing and stirring uniformly, adjusting the pH value after ensuring that various compounds are completely dissolved, controlling the pH value between 5.5-6.5, and then standing and storing to avoid spilling.